Hydraulic bridge pressure detection device of stepless speed change harvester

Abstract

The utility model relates to the technical field of agricultural machinery, in particular to a stepless speed change harvester hydraulic bridge pressure detection device which comprises a detection table, a clamping assembly is arranged at the top of the detection table, a to-be-detected hydraulic bridge body is arranged on the side of the clamping assembly, and a detection assembly is arranged at the top of the clamping assembly; by arranging the first clamping mechanism, the second clamping mechanism, the sliding rail, the sliding block, the spring, the second sliding rod, the rubber plate and other components, the supporting blocks can move along the sliding rail through the sliding block, and the positions of the two sides of the hydraulic bridge body are adjusted. Through elastic connection of a first sliding rod and a spring, rotatable design of a second sliding rod and flexible contact of a rubber plate, the device can adapt to the outlines of hydraulic bridge bodies of different specifications, and through elastic clamping force and multi-angle rotation adjustment, the device can achieve the purpose that the hydraulic bridge bodies of different specifications can be clamped through a symmetrical elastic clamping structure. And the hydraulic bridge bodies of different models can be quickly positioned and reliably fixed.

Description

Technical Field

[0001] This application relates to the field of agricultural machinery technology, and in particular to a pressure detection device for the hydraulic axle of a continuously variable transmission (CVT) harvester. Background Technology

[0002] In modern agricultural production, continuously variable transmission (CVT) harvesters have become key equipment in agricultural mechanization due to their high efficiency and flexible operation. As the core transmission component of CVT harvesters, the hydraulic axle's pressure parameters directly affect the equipment's power transmission efficiency, stability, and service life. Therefore, accurate pressure testing of the hydraulic axle is crucial for ensuring the normal operation of the harvester and reducing the risk of malfunctions.

[0003] Currently, traditional hydraulic bridge pressure testing devices have many limitations. Existing clamping and fixing structures are mostly rigid, making it difficult to adapt to hydraulic bridge bodies of different specifications and shapes, and easily causing damage to the surface of components during the fixing process. Furthermore, the lack of effective buffering and adaptive adjustment mechanisms during testing makes it difficult to ensure the stability of the hydraulic bridge during pressure testing, thus affecting the accuracy of the test data. In addition, most testing devices have limited data acquisition and transmission functions, failing to achieve remote monitoring and real-time analysis, resulting in low equipment maintenance efficiency and failing to meet the demands of modern agriculture for intelligent and efficient testing.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: existing devices lack flexibly rotating parts, making it difficult to perform flexible clamping at multiple angles for hydraulic bridges of different shapes, sizes, or installation positions. This results in poor adaptability and an inability to provide stable and uniform clamping force. During the testing process, the hydraulic bridge is prone to shaking or displacement, affecting the testing accuracy. Utility Model Content

[0005] To address the problems mentioned in the background section, this application provides a pressure detection device for the hydraulic axle of a continuously variable transmission (CVT) harvester.

[0006] This application provides a continuously variable transmission (CVT) harvester hydraulic axle pressure testing device, which adopts the following technical solution: A CVT harvester hydraulic axle pressure testing device includes a testing platform, a clamping assembly is provided on the top of the testing platform, a hydraulic axle body to be tested is provided on the side of the clamping assembly, and a testing assembly is provided on the top of the clamping assembly.

[0007] The clamping assembly includes a first clamping mechanism and a second clamping mechanism symmetrically arranged around the hydraulic bridge body. Both the first clamping mechanism and the second clamping mechanism are slidably disposed on the top of a slide rail, which is fixedly installed on the top surface of the testing table. Each of the first clamping mechanism and the second clamping mechanism includes a support block movably connected to the slide rail via a slider, a limiting plate with a linear sliding sleeve, a second sliding rod rotatable ±150°, and a rubber plate for fixing the hydraulic bridge body. The slider is fixedly connected to the bottom of the support block.

[0008] Through the above scheme, the large-angle rotation design of the second slide bar, combined with the elastic contact surface of the rubber plate, can adapt to the curved surface structure of the hydraulic bridge during clamping. The spring limit baffle and the linear slide sleeve form a double guide to ensure uniform distribution of clamping force.

[0009] Optionally, the detection assembly includes a vertically arranged support column, a top plate with a detection module, and an external operation panel electrically connected to the detection module. The side of the detection table has a partitioned placement cavity, which is divided into a test area and a detection area by a detachable support plate.

[0010] The above solution enables standardized management of the testing process through a partitioned cavity design, allows for flexible adjustment of the spatial layout with a detachable support plate, and enables real-time synchronization and remote monitoring of testing data in conjunction with a wireless transmission module.

[0011] Optionally, the first clamping mechanism and the second clamping mechanism further include a first slide rod movably sleeved on the side of the limiting plate and a rotating roller rotatably connected to the side of the support block. The top end of the first slide rod is movably connected to the second slide rod through a hinge. A spring limiting baffle is fixedly connected to the bottom end of the first slide rod, and the two ends of the spring are respectively fixedly connected to the bottom of the limiting plate and the top of the spring limiting baffle.

[0012] The above scheme forms an elastic buffer system by linking the spring and the slide bar. The rolling contact design of the roller can reduce friction loss. The anti-slip texture ensures that the hydraulic bridge has no axial displacement during the clamping process, thus improving the testing accuracy.

[0013] Optionally, the surface of the roller is provided with anti-slip texture, and the rolling direction of the roller is perpendicular to the extension direction of the slide rail.

[0014] Through the above solution, the vertically arranged anti-slip texture of the rollers effectively resists the lateral force when the slide rail moves, avoids torsion during hydraulic bridge testing, and the wear-resistant coated slide rail further extends the service life of the equipment.

[0015] Optionally, the length of the slide rail is twice the length of the top plate of the detection component, and mechanical limit blocks are provided at both ends of the slide rail, and its surface is provided with a wear-resistant coating.

[0016] The above solutions provide ample adjustment range with double-length slide rails, prevent mechanical limit blocks from derailing the clamping mechanism, and reduce long-term wear and tear with wear-resistant coatings, ensuring the reliability of the equipment under high-pressure testing conditions.

[0017] Optionally, the working surface of the rubber plate is provided with a damping plate, which is always in contact with the hydraulic bridge body under the elastic force of the spring.

[0018] The above scheme uses the damping plate and spring force to work together to form a flexible clamping interface, which avoids damage to the hydraulic bridge surface from rigid contact and maintains test stability through constant pressure, thereby improving data accuracy.

[0019] Optionally, the external operation panel of the detection component integrates a real-time pressure display module and a data storage module, and establishes a communication connection with a remote monitoring terminal through a wireless transmission module.

[0020] Through the above solution, the intelligent operation panel enables visualization of test data and traceability of historical records, and the wireless communication module supports multi-terminal collaborative operation, meeting the intelligent testing needs of modern agricultural equipment.

[0021] In summary, this application includes the following beneficial technical effects:

[0022] 1. This utility model, by setting up a first clamping mechanism, a second clamping mechanism, a slide rail, a slider, a spring, a second slide rod, and a rubber plate, etc., allows the support block to move along the slide rail via the slider, adjusting the position of both sides of the hydraulic bridge body through the sliding cooperation of the first and second clamping mechanisms on the slide rail and the fixed connection between the slider and the support block. Simultaneously, the elastic connection between the first slide rod and the spring, the rotatable design of the second slide rod, and the flexible contact of the rubber plate can adapt to the shape contours of hydraulic bridge bodies of different specifications. Through elastic clamping force and multi-angle rotation adjustment, the hydraulic bridge body is stably fixed, thus achieving the effect of rapid positioning and reliable fixing of different models of hydraulic bridge bodies through a symmetrical elastic clamping structure.

[0023] 2. This utility model, by incorporating components such as a rotating roller, anti-slip texture, limiting plate, spring, and damping plate, utilizes the rolling contact between the anti-slip texture on the rotating roller surface and the slide rail, as well as the perpendicular design of the rotating roller's rolling direction to the slide rail's extension direction. This allows the clamping mechanism to easily achieve lateral position adjustment on the slide rail through the rolling friction of the rotating roller, reducing manual pushing resistance. Simultaneously, the spring's elastic force ensures that the damping plate remains in constant contact with the hydraulic bridge body surface. Combined with the damping structure of the rubber plate's working surface, this effectively counteracts vibrations generated during testing when the bridge is fixed. Through elastic buffering and damping adsorption, the hydraulic bridge body is stably clamped without rigid damage. Thus, this device achieves the effect of efficiently clamping the hydraulic bridge body and improving the stability of the testing process through low-friction sliding adjustment and flexible contact fixing. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the device in the embodiments of this application;

[0025] Figure 2 This is a schematic diagram of a partial structure of the device in an embodiment of this application;

[0026] Figure 3 This is a partial structural diagram of the clamping component in an embodiment of this application;

[0027] Figure 4 This is a schematic diagram of a partial structure of the clamping component in an embodiment of this application.

[0028] Reference numerals: 1. Detection table; 2. Clamping assembly; 21. First clamping mechanism; 22. Second clamping mechanism; 201. Slide rail; 202. Support block; 203. Slider; 204. Limiting plate; 205. First slide rod; 206. Spring; 207. Second slide rod; 208. Rubber plate; 209. Rotary roller; 3. Detection assembly; 4. Hydraulic bridge body. Detailed Implementation

[0029] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0030] This application discloses a pressure detection device for the hydraulic bridge of a continuously variable transmission (CVT) harvester.

[0031] Please see Figure 1 A continuously variable transmission (CVT) harvester hydraulic bridge pressure detection device includes a detection platform 1, a clamping assembly 2 is provided on the top of the detection platform 1, a hydraulic bridge body 4 to be tested is provided on the side of the clamping assembly 2, and a detection assembly 3 is provided on the top of the clamping assembly 2.

[0032] The detection component 3 includes a vertically arranged support column, a top plate with a detection module, and an external operation panel electrically connected to the detection module. The side of the detection table 1 has a partitioned placement cavity, which is divided into a test area and a detection area by a detachable support plate.

[0033] The external operation panel of the detection component 3 integrates a real-time pressure display module and a data storage module, and establishes a communication connection with the remote monitoring terminal through a wireless transmission module.

[0034] Please see Figures 2 to 4 The clamping assembly 2 includes a first clamping mechanism 21 and a second clamping mechanism 22 symmetrically arranged around the hydraulic bridge body 4. Both the first clamping mechanism 21 and the second clamping mechanism 22 are slidably disposed on the top of the slide rail 201, which is fixedly installed on the top surface of the testing table 1. Each of the first clamping mechanism 21 and the second clamping mechanism 22 includes a support block 202 movably connected to the slide rail 201 via a slider 203, a limiting plate 204 with a linear sliding sleeve, a second sliding rod 207 rotatable ±150°, and a rubber plate 208 for fixing the hydraulic bridge body 4. The slider 203 is fixedly connected to the bottom of the support block 202.

[0035] The length of the slide rail 201 is twice the length of the top plate of the detection component 3. Mechanical limit blocks are provided at both ends of the slide rail 201, and its surface is coated with a wear-resistant coating.

[0036] The first clamping mechanism 21 and the second clamping mechanism 22 further include a first slide rod 205 movably sleeved on the side of the limiting plate 204 and a rotating roller 209 rotatably connected to the side of the support block 202. The top end of the first slide rod 205 is movably connected to the second slide rod 207 through a hinge. A spring limiting baffle is fixedly connected to the bottom end of the first slide rod 205, and the two ends of the spring 206 are respectively fixedly connected to the bottom of the limiting plate 204 and the top of the spring limiting baffle.

[0037] The surface of the roller 209 is provided with anti-slip texture, and the rolling direction of the roller 209 is perpendicular to the extension direction of the slide rail 201.

[0038] The working surface of the rubber plate 208 is provided with a damping plate, which is always in contact with the hydraulic bridge body 4 under the elastic force of the spring 206.

[0039] Further explanation is needed: Clamping assembly 2 is the core fixing component of the continuously variable transmission (CVT) harvester hydraulic bridge pressure detection device. Its main function is to stably clamp and adaptively position the hydraulic bridge body 4 to be tested, providing a reliable installation foundation for subsequent pressure testing. Its symmetrically arranged first clamping mechanism 21 and second clamping mechanism 22 achieve sliding adjustment via slide rail 201, allowing for adjustment of the spacing according to the size differences of the hydraulic bridge body 4, accommodating different specifications of testing objects. The elastic clamping structures in the first clamping mechanism 21 and the second clamping mechanism 22—first slide rod 205, spring 206, and second slide rod 207—can achieve… With ±150° rotation and elastic buffering, it can conform to the irregular surface of the hydraulic bridge body 4. Through the cooperation of the rubber plate 208 and the damping plate, a flexible clamping is formed under the elastic force of the spring 206, avoiding damage to components caused by rigid contact. At the same time, it ensures that the body is stable and without displacement during the testing process. The design of the rotating roller 209 makes it easy for the clamping mechanism to finely adjust the angle in the direction perpendicular to the slide rail 201. The anti-slip texture enhances the contact friction and improves the positioning accuracy. The mechanical limit blocks and wear-resistant coating at both ends of the slide rail 201 ensure the safety and durability of the clamping mechanism's sliding. The partitioned structure design of the testing table 1 makes the clamping operation more convenient and efficient.

[0040] The implementation principle of the continuously variable transmission harvester hydraulic bridge pressure detection device in this application embodiment is as follows:

[0041] First, the hydraulic bridge body 4 to be tested is placed on the testing table 1, between the symmetrically arranged first clamping mechanism 21 and second clamping mechanism 22. By sliding the sliders 203 at the bottom of the first clamping mechanism 21 and the second clamping mechanism 22 along the slide rail 201, the distance between the two clamping mechanisms is adjusted according to the size of the hydraulic bridge body 4. During the process, the anti-slip texture on the surface of the rotating roller 209 contacts the body, assisting in fine-tuning the angle along the direction perpendicular to the slide rail 201, so that the clamping mechanism is initially aligned with the body to be fixed.

[0042] Secondly, the first slide rod 205 of the clamping mechanism slides up and down within the linear slide sleeve of the limiting plate 204, causing the second slide rod 207, which can rotate ±150°, to conform to the irregular surface of the hydraulic bridge body 4. The spring 206 pushes the first slide rod 205 with elastic force, so that the damping plate of the working surface of the rubber plate 208 is always pressed against the body surface, forming a flexible clamping. The symmetrical first clamping mechanism 21 and the second clamping mechanism 22 apply elastic pressure simultaneously, which not only avoids component damage caused by rigid contact, but also buffers and offsets possible vibrations during the detection process through the spring 206, ensuring that the body is stable and without displacement.

[0043] Next, the top plate of the testing component 3 is vertically fixed to the testing platform 1 by the support column. The testing module on the top plate is connected to the pressure interface of the hydraulic bridge body 4. The operator sets the testing parameters through the external operation panel. The pressure real-time display module integrated in the panel displays the initial data synchronously. The partitioned placement cavity on the side of the testing platform 1 stores the hydraulic bridge to be tested and the tested components separately, improving the operating efficiency.

[0044] Next, after the test is started, the internal hydraulic system of the hydraulic bridge body 4 is pressurized. The test module collects pressure data in real time and transmits it to the external operation panel. The elastic structure of the first clamping mechanism 21 and the second clamping mechanism 22 continuously provides stable clamping force. The mechanical limit blocks at both ends of the slide rail 201 prevent the clamping mechanism from sliding excessively. The data storage module records the pressure change curve in real time. The wireless transmission module sends the real-time data to the remote monitoring terminal to realize remote monitoring and data archiving of the test process.

[0045] Finally, after the test is completed, the hydraulic bridge body 4 is depressurized, the operator stops the test program through the operation panel, releases the elastic pressure of the clamping mechanism, slides the first clamping mechanism 21 and the second clamping mechanism 22 back to the initial position along the slide rail 201, takes out the tested hydraulic bridge body 4, the detachable support plate of the partitioned placement cavity of the test table 1 facilitates cleaning of the test area, the equipment is reset to the standby state, and is ready for the next test.

[0046] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A continuously variable transmission (CVT) harvester hydraulic axle pressure detection device, comprising a detection platform (1), characterized in that: The top of the testing platform (1) is provided with a clamping assembly (2), the side of the clamping assembly (2) is provided with a hydraulic bridge body (4) to be tested, and the top of the clamping assembly (2) is provided with a testing assembly (3). The clamping assembly (2) includes a first clamping mechanism (21) and a second clamping mechanism (22) symmetrically arranged around the hydraulic bridge body (4). The first clamping mechanism (21) and the second clamping mechanism (22) are both slidably arranged on the top of the slide rail (201), which is fixedly installed on the top surface of the testing table (1). The first clamping mechanism (21) and the second clamping mechanism (22) each include a support block (202) movably connected to the slide rail (201) via a slider (203), a limiting plate (204) with a linear sliding sleeve, a second sliding rod (207) rotatable ±150°, and a rubber plate (208) for fixing the hydraulic bridge body (4). The slider (203) is fixedly connected to the bottom of the support block (202).

2. The hydraulic bridge pressure detection device for a continuously variable transmission harvester according to claim 1, characterized in that: The detection component (3) includes a vertically arranged support column, a top plate with a detection module, and an external operation panel electrically connected to the detection module. The side of the detection table (1) is provided with a partitioned placement cavity, which is divided into a test area and a detection area by a detachable support plate.

3. The hydraulic bridge pressure detection device for a continuously variable transmission harvester according to claim 1, characterized in that: The first clamping mechanism (21) and the second clamping mechanism (22) further include a first slide rod (205) movably sleeved on the side of the limiting plate (204) and a rotating roller (209) rotatably connected to the side of the support block (202). The top end of the first slide rod (205) is movably connected to the second slide rod (207) through a hinge. The bottom end of the first slide rod (205) is fixedly connected to a spring limiting baffle, and the two ends of the spring (206) are respectively fixedly connected to the bottom of the limiting plate (204) and the top of the spring limiting baffle.

4. The hydraulic bridge pressure detection device for a continuously variable transmission harvester according to claim 3, characterized in that: The surface of the roller (209) is provided with anti-slip texture, and the rolling direction of the roller (209) is perpendicular to the extension direction of the slide rail (201).

5. The hydraulic bridge pressure detection device for a continuously variable transmission harvester according to claim 1, characterized in that: The length of the slide rail (201) is twice the length of the top plate of the detection component (3). Mechanical limit blocks are provided at both ends of the slide rail (201), and its surface is provided with a wear-resistant coating.

6. The hydraulic bridge pressure detection device for a continuously variable transmission harvester according to claim 1, characterized in that: The working surface of the rubber plate (208) is provided with a damping plate, which is always in contact with the hydraulic bridge body (4) under the elastic force of the spring (206).

7. The hydraulic bridge pressure detection device for a continuously variable transmission harvester according to claim 2, characterized in that: The external operation panel of the detection component (3) integrates a real-time pressure display module and a data storage module, and establishes a communication connection with a remote monitoring terminal through a wireless transmission module.

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