The PMP 7.1R130 Gearbox for Concrete Mixer Trucks: A Closer Look
In the world of heavy-duty construction vehicles, the concrete mixer truck stands as a vital workhorse. And at the heart of its efficient operation lies the PMP 7.1R130 gearbox. This remarkable piece of engineering is designed to endure the toughest challenges and ensure seamless functionality on construction sites.
1. Durable Construction Materials
The PMP 7.1R130 gearbox is built with robustness in mind. Its outer casing is typically fabricated from a high-strength alloy, a combination of cast iron and alloy steel. This blend offers excellent resistance to the vibrations, impacts, and abrasions that are an everyday occurrence on construction sites. The cast iron provides a solid foundation, absorbing shocks, while the alloy steel enhances the overall strength and durability.
Inside, the gears are precision-machined from hardened alloy steel. They undergo meticulous heat treatment processes to achieve the ideal hardness and wear resistance. The tooth profiles are carefully designed to ensure smooth meshing, minimizing power losses and reducing noise during operation. The shafts and bearings are also of top-notch quality, chosen to withstand the heavy loads and high torques that are characteristic of concrete mixer trucks. Complemented by an efficient lubrication system, these components can operate reliably for extended periods.
2. Optimized Gear Ratios
The gear ratios of the PMP 7.1R130 gearbox are finely tuned to meet the specific demands of concrete mixer trucks. When starting up, especially when the truck is loaded with a full batch of concrete, the gearbox amplifies torque significantly. This allows the vehicle to overcome inertia and initiate movement smoothly. As the truck accelerates and transitions to different driving conditions, such as cruising on the highway or maneuvering on a construction site, the gear ratios adapt intelligently.
They ensure a proper balance between power and speed, optimizing fuel efficiency and overall performance. The torque converter, if incorporated, plays a crucial role in this process. It acts as a fluid coupling between the engine and the gearbox, cushioning sudden changes in engine output and providing a smooth acceleration experience. This helps prevent jerky starts and stops, enhancing both driver comfort and vehicle longevity.
3. Advanced Lubrication and Cooling Systems
To guarantee the longevity and reliable operation of the gearbox, it is equipped with state-of-the-art lubrication and cooling systems. The lubrication system functions on a continuous flow principle, with a high-pressure pump circulating a specially formulated gear oil. This oil forms a protective film on all moving parts, reducing friction and wear to a minimum.
The cooling system is equally important. It usually comprises an air-cooled or liquid-cooled oil cooler, depending on the application. The gearbox housing may also have fins to increase the surface area for heat dissipation. These cooling mechanisms work together to keep the gearbox operating within its optimal temperature range, even during long hours of continuous use or in hot weather conditions. This is essential as overheating can lead to accelerated wear and reduced efficiency.
4. Flexible Shift Control Options
Concrete mixer truck drivers have the choice between two shift control systems: manual and automated. The manual shift lever is ergonomically designed, making it easy to reach and operate. It provides tactile feedback when gears are engaged, allowing the driver to have precise control. This is particularly beneficial in complex construction terrains, such as narrow lanes, steep slopes, or areas where the truck needs to be positioned accurately for concrete discharge.
The automated shift system, on the other hand, utilizes advanced sensors. These sensors monitor vehicle speed, engine load, throttle position, and other parameters. An electronic control unit (ECU) then processes this data and determines the optimal gear shift. This not only reduces driver fatigue during long hauls but also optimizes fuel efficiency and overall vehicle performance. In stop-and-go traffic or during routine highway driving, the automated system can smoothly adjust the gears to keep the truck running efficiently.
5. Seamless Integration with Truck Components
The PMP 7.1R130 gearbox is designed to integrate flawlessly with the other components of the concrete mixer truck. Its input shaft is carefully matched to the engine's output, ensuring a smooth power transfer. The output shafts are configured to connect with the drive axles and the mixer drum's drive mechanism.
Mounting brackets and fastening points are strategically placed to align the gearbox with the truck chassis, minimizing stress and vibrations. Additionally, it interfaces well with the truck's electrical and hydraulic systems. Diagnostic signals from the gearbox sensors can be integrated with the truck's onboard computer for real-time monitoring and troubleshooting. The hydraulic system that powers the mixer drum rotation coordinates with the gearbox to ensure synchronized operation.
6. Easy Maintenance and Serviceability
Maintenance of the PMP 7.1R130 gearbox is made convenient. There are accessible ports and covers for routine oil changes, filter replacements, and visual inspections. The oil drain plug is conveniently located, and the oil fill port is designed to prevent spillage. The filters are modular, allowing for quick and easy replacement.
Diagnostic connectors are incorporated, allowing technicians to hook up diagnostic tools and retrieve detailed information about the gearbox's health. The manufacturer typically provides comprehensive service manuals that offer step-by-step guidance for troubleshooting common problems, such as noisy gears, shifting problems, or overheating. This makes it possible to quickly identify and fix issues, minimizing downtime.
7. Proven Performance in the Field
In real-world construction applications, the PMP 7.1R130 gearbox has consistently delivered excellent results. It has enabled concrete mixer trucks to meet tight delivery schedules, transporting freshly mixed concrete to job sites without delay. Whether traversing rough terrains, climbing steep hills, or cruising on highways, the gearbox provides reliable power and smooth operation.
Fleet operators have reported fewer breakdowns and lower maintenance costs with trucks equipped with this gearbox. The combination of its durable design, efficient power transfer, and easy maintenance has made it a popular choice among construction professionals. It not only meets the current demands of the industry but also holds the potential for further improvement as technology advances.
In conclusion, the Concrete Mixer Truck PMP 7.1R130 Gearbox is a paragon of engineering excellence. It combines strength, precision, and functionality to support the crucial role that concrete mixer trucks play in the construction industry. As the industry progresses, this gearbox is poised to adapt and continue to serve as a reliable and efficient component.
| Model NO. |
7.1R130 |
Model |
7.1R130 |
| Lead Time |
5 Days |
Transport Package |
Standard Export Wooden Case |
| Colour |
as Your Request |
Usage |
Concrete Mixer |
| Weight |
330KG |
Specification |
56*56*68 |
| Trademark |
Bodeke |
Origin |
China |
| HS Code |
8483402000 |
Production Capacity |
100 Sets/Month |
| Technical data of Camray CMR conrete mixer gearbox |
| Model |
7.1R130 |
Max.Output Torque
Nm |
71,000 |
Ratio
l= |
1:130 |
| Max.installation angle of Drum |
11° |
Max.Input speed
rpm |
2500 |
Max.Output speed
rpm |
18 |
| Max.Capacity of Drum m³ |
10~14 |
| Weight(without oil) KG |
320 |
| Lubrication Oil Quantity dm³ |
11.5 |
| Max.Misalignmeng of flange |
+/-6° |
FAQs about Mixer Truck Speed Reducer
Q1: What is a mixer truck speed reducer?
A1: A mixer truck speed reducer is a mechanical device that reduces the speed of the mixer truck's motor, increasing torque and allowing for more effective mixing. It helps to transfer power from the motor to the mixer drum more efficiently, ensuring smooth and consistent mixing.
Q2: Why is a speed reducer necessary for mixer trucks?
A2: A speed reducer is necessary for mixer trucks because it matches the speed and torque requirements of the mixer drum to the output of the truck's motor. By reducing the speed, the reducer amplifies the torque, allowing the mixer drum to rotate at the optimal speed for mixing, while minimizing wear and tear on the motor.
Q3: How does a mixer truck speed reducer work?
A3: A mixer truck speed reducer typically consists of a series of gears or other mechanical components that transfer power from the motor to the mixer drum at a reduced speed. These gears are designed to mesh together, reducing the speed of rotation while increasing torque. This allows the mixer drum to rotate at a slower, more controlled speed, ensuring effective mixing.
Q4: What are the benefits of using a mixer truck speed reducer?
A4: Using a mixer truck speed reducer provides several benefits. It increases the torque output of the motor, allowing the mixer drum to rotate more effectively and mix materials more thoroughly. Additionally, it reduces wear and tear on the motor by matching the speed and torque requirements of the mixer drum, extending the motor's lifespan. Furthermore, a speed reducer can improve the overall efficiency of the mixer truck, reducing fuel consumption and operational costs.
Q5: How often should a mixer truck speed reducer be maintained?
A5: The frequency of maintenance for a mixer truck speed reducer depends on the specific model and manufacturer's recommendations. However, generally speaking, it is important to perform regular inspections and lubrication to ensure the reducer is operating smoothly and efficiently. Additionally, if any issues or malfunctions are noticed, it is crucial to address them promptly to prevent further damage or downtime. Regular maintenance can help extend the lifespan of the speed reducer and keep your mixer truck operating at peak performance.
Q6: What are the common issues that can arise with mixer truck speed reducers?
A6: Common issues that can arise with mixer truck speed reducers include wear and tear on gears, bearings, and other mechanical components. This can lead to reduced efficiency, increased noise, and ultimately, failure of the reducer. Lubrication issues, such as insufficient or contaminated lubricant, can also cause problems. Regular maintenance and inspection, as well as prompt repair of any issues, are crucial to preventing these common problems and ensuring the reliable operation of the speed reducer.
Q7.Are you manufacturer? And what's the delivery time?
A7:Yes, we are manufacturer and have our own factory. Generally, its in stock for common models, 25-30 days will be finished and sent to customer in time.
Q8.If we don't find what we want on your website, what should we do?
A8: You can email us the descriptions and pictures of the products you need, We will check whether we can make it.
Q9.How about the inspection and Guarantee of products?
A9:We promise: all products are tested before ship, to confirm it will be working and in good conditions when customers get. Also, we offer 12-month guarantee, if it doesn't work due to quality issue in the period, we will send spares to repair for free.
Bodeke Industrial Components Co., Ltd. is a leading Chinese company specializing in the manufacturing and maintenance of a wide range of industrial equipment components. Our products find application in diverse sectors, including cement tanker trucks, excavators, rescue equipment for cement trucks, mixers, cranes, hydraulic motors, hydraulic pumps, and other industrial machinery.
| Empower your industrial machinery with Bodeke - a leading Chinese manufacturer specializing in the repair and production of a wide range of equipment components.From cement tanker trucks and excavators to mixer trucks,cranes,hydraulic motors,and pumps,our precision-engineered products redefine reliability and performance.Elevate your operations with Bodeke's quality components-your trusted partner in global industrial excellence. |
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