Pneumatic motor friction force testing device
The modularly designed pneumatic motor friction testing device solves the problem that traditional devices are difficult to adapt to different models, achieving an efficient and flexible testing solution and improving the stability and accuracy of the test data.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-27
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional pneumatic motor friction testing devices employ a non-modular design, resulting in a lack of independence and interchangeability among components. This makes it difficult to adapt to the testing requirements of different models and specifications, increasing testing costs and extending the testing cycle.
It adopts a modular design, including a test bench base plate, clamping assembly, torque measurement assembly and scissor lift, to achieve independence and interchangeability of each component, facilitate assembly and maintenance, and adapt to the testing of different models of pneumatic motors.
It improves the flexibility and efficiency of the testing equipment, ensures stable clamping of the pneumatic motor and accuracy of the test data, shortens the testing cycle, and reduces modification and maintenance costs.
Smart Images
Figure CN224066253U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pneumatic motor friction testing technology, and in particular to a pneumatic motor friction testing device. Background Technology
[0002] Pneumatic motors, as power devices that convert compressed air energy into mechanical energy, are widely used in industrial automation, aerospace, and special equipment. Their frictional performance is a key indicator affecting operating efficiency, service life, and reliability. Therefore, the development of pneumatic motor friction testing devices is of great significance for optimizing product design and improving performance.
[0003] Traditional pneumatic motor friction testing devices often employ a non-modular design, integrating various functional components such as loading mechanisms, sensors, and data acquisition and processing systems into a single frame. This lack of independence and interchangeability between components results in a complex and fixed structure, making it difficult to adapt to the testing needs of different models and specifications of pneumatic motors. When testing pneumatic motors of different sizes or types, large-scale modifications or replacements of the entire device are often required, increasing testing costs, extending testing cycles, and reducing testing efficiency. Utility Model Content
[0004] In view of the problem that the existing components are integrated into a single frame and lack independence and interchangeability among the components, this utility model is proposed.
[0005] Therefore, the purpose of this utility model is to provide a pneumatic motor friction force testing device, the purpose of which is: modular design and linkage.
[0006] To solve the above technical problems, the present invention provides the following technical solution: a pneumatic motor friction force testing device, including a test platform base plate, a support foot fixed to the bottom of the test platform base plate, side frames fixed to both sides of the top of the test platform base plate, a clamping assembly fixed inside the two side frames, and the movable ends of the two clamping assemblies being arranged opposite to each other, and a pneumatic motor assembly being arranged between the movable ends of the two clamping assemblies.
[0007] A torque measuring component is fixed to the rear side of the top center of the test bench base plate, and the drive end of the torque measuring component is detachably connected to the shaft end of the pneumatic motor assembly. A motor positioning block is provided on the side of the pneumatic motor assembly near the torque measuring component.
[0008] As an improved technical solution, a dial indicator is installed on one side of the top of the test bench base plate near the torque measuring component, and two horizontal bubble gauges are fixed on one side of the top of the test bench base plate away from the torque measuring component, and the two horizontal bubble gauges are distributed vertically.
[0009] As an improved technical solution, the torque measurement component includes a servo motor mounted on the top of the test bench base plate, a torque meter fixedly connected to the drive end of the side frame, a coupling mounted on the output end of the torque meter, and the torque meter connected to the input end of the pneumatic motor assembly via the coupling.
[0010] As an improved technical solution, the torque measurement assembly also includes a mounting plate and a motor bracket disposed on the top of the test bench base plate, and a support plate for mounting the torque meter is fixed on the top of the motor bracket.
[0011] As an improved technical solution, the servo motor is fixed to the vertical end of the motor bracket, and the vertical end of the motor bracket has a circular hole for the servo motor shaft to pass through.
[0012] As an improved technical solution, the clamping assembly includes a cylinder support and an electric cylinder fixed on the cylinder support. The electric cylinder is fixedly connected to a pressure sensor through a connector installed on its movable end. A push rod is fixedly installed at the end of the pressure sensor away from the electric cylinder. A motor clamping plate is sleeved on the push rod. A piston top is provided at the end of the push rod away from the pressure sensor. An inner groove is provided on the side of the motor clamping plate near the piston top.
[0013] As an improved technical solution, a scissor lift is installed on the top of the test bench base plate and between the movable ends of the clamping assemblies on both sides, and a pneumatic motor is mounted on the movable end of the scissor lift.
[0014] After adopting the above technical solution, the beneficial effects of this utility model are:
[0015] 1. This utility model applies pressure to the pneumatic motor assembly by extending the electric cylinder. When the pressure sensor detects the force, it detects the pressure resistance of the pneumatic motor assembly. At the same time, the two sides of the pneumatic motor assembly are respectively engaged with the inner grooves on the motor clamping plates on both sides, which not only improves the clamping and positioning effect of the pneumatic motor assembly, but also helps to prevent the pneumatic motor assembly from falling due to gravity and causing positional displacement.
[0016] 2. The present invention's testing device consists of two clamping components, a torque measuring component, and a scissor lift platform. The modular design facilitates assembly, maintenance, and subsequent modification and adaptation of the device. It also clamps and lifts the pneumatic motor assembly, improving the stability of the pneumatic motor assembly when placed flat during testing and increasing the accuracy of the test data. At the same time, it can also simulate the parameter data of the pneumatic motor assembly under different working conditions, increasing the richness of the test. Attached Figure Description
[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:
[0018] Figure 1 This is a schematic diagram of the overall structure of a pneumatic motor friction force testing device according to the present invention.
[0019] Figure 2 This is a schematic diagram of the structure of two clamping components and a torque measuring component of a pneumatic motor friction force testing device according to this utility model.
[0020] Figure 3 This is a schematic diagram of the clamping assembly of a pneumatic motor friction force testing device according to the present invention.
[0021] Explanation of reference numerals in the attached figures:
[0022] 1. Test bench base plate; 2. Support legs; 3. Level bubble gauge; 4. Side frame; 5. Clamping assembly; 51. Cylinder support; 52. Electric cylinder; 53. Connector; 54. Pressure sensor; 55. Push rod; 56. Motor clamping plate; 57. Piston top; 6. Dial indicator; 7. Torque measuring assembly; 71. Mounting plate; 72. Motor bracket; 73. Support plate; 74. Servo motor; 75. Torque meter; 76. Coupling; 8. Scissor lift platform; 9. Pneumatic motor assembly; 10. Motor positioning block. Detailed Implementation
[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.
[0024] Example 1
[0025] Reference Figures 1-3This is the first embodiment of the present invention, which provides a pneumatic motor friction force testing device. This pneumatic motor friction force testing device includes a test platform base plate 1, with support legs 2 fixed to the bottom of the test platform base plate 1. Side frames 4 are fixed to both sides of the top of the test platform base plate 1. Clamping components 5 are fixed inside the two side frames 4, and the movable ends of the two clamping components 5 are arranged opposite each other. At the same time, the opposite surfaces of the two side frames 4 are provided with openings for the movable ends of the clamping components 5 to pass through. A pneumatic motor assembly 9 is arranged between the movable ends of the two clamping components 5. A torque measuring component 7 is fixed to the rear side of the top center of the test platform base plate 1, and the driving end of the torque measuring component 7 is detachably connected to the shaft end of the pneumatic motor assembly 9. A motor positioning block 10 is arranged on the side of the pneumatic motor assembly 9 near the torque measuring component 7.
[0026] A dial indicator 6 is installed on one side of the top of the test bench base plate 1 near the torque measuring component 7. Two horizontal bubble gauges 3 are fixed on one side of the top of the test bench base plate 1 away from the torque measuring component 7, and the two horizontal bubble gauges 3 are distributed vertically.
[0027] The torque measurement component 7 includes a servo motor 74 mounted on the top of the test bench base plate 1. A torque meter 75 is fixedly connected to the drive end of the side frame 4. A coupling 76 is installed at the output end of the torque meter 75, and the torque meter 75 is connected to the input end of the pneumatic motor assembly 9 through the coupling 76. When the shaft end of the pneumatic motor assembly 9 rotates, it will drive the torque meter 75 to rotate through the coupling 76, and the torque of the pneumatic motor assembly 9 will be detected by the torque meter 75.
[0028] The torque measurement assembly 7 also includes a mounting plate 71 and a motor bracket 72 disposed on the top of the test bench base plate 1. A support plate 73 for mounting a torque meter 75 is fixed on the top of the motor bracket 72, and the torque meter 75 is fixed on the top of the support plate 73.
[0029] The servo motor 74 is fixed to the vertical end of the motor bracket 72, and the vertical end of the motor bracket 72 has a circular hole through which the shaft end of the servo motor 74 passes.
[0030] During use, the testing device consists of two clamping components 5, a torque measuring component 7, and a scissor lift platform 8. The modular design facilitates assembly, maintenance, and subsequent modification and adaptation of the device. It also clamps and lifts the pneumatic motor assembly 9, improving the stability of the pneumatic motor assembly 9 when it is placed flat during testing, thus improving the accuracy of the test data. At the same time, it can also simulate the parameter data of the pneumatic motor assembly 9 under different working conditions, increasing the richness of the test.
[0031] Example 2
[0032] Reference Figures 1-3This is the second embodiment of the present invention. This embodiment differs from the first embodiment in that the clamping assembly 5 includes a cylinder support 51 and an electric cylinder 52 fixed to the cylinder support 51. The electric cylinder 52 is fixedly connected to a pressure sensor 54 via a connector 53 mounted on its movable end. A push rod 55 is fixedly mounted on the end of the pressure sensor 54 away from the electric cylinder 52. A motor clamping plate 56 is sleeved on the push rod 55. A piston top 57 is provided on the end of the push rod 55 away from the pressure sensor 54. A circular hole is provided in the middle of the motor clamping plate 56 for the push rod 55 and the piston top 57 to pass through. An inner groove is provided on the side of the motor clamping plate 56 near the piston top 57. The two sides of the pneumatic motor assembly 9 are respectively engaged in the inner grooves on the two sides of the motor clamping plates 56, thus providing a lifting effect for the pneumatic motor assembly 9. This not only improves the clamping and positioning effect of the pneumatic motor assembly 9 but also helps prevent the pneumatic motor assembly 9 from falling due to gravity and shifting its position.
[0033] A scissor lift platform 8 is installed on the top of the test bench base plate 1 and between the movable ends of the clamping assemblies 5 on both sides, and a pneumatic motor assembly 9 is placed on the movable end of the scissor lift platform 8.
[0034] During use, the pneumatic motor assembly 9 is located between the two clamping components 5. Then, the two electric cylinders 52 extend simultaneously to clamp the pneumatic motor assembly 9 between the two push rods 55 for fixation. Pressure is applied to the pneumatic motor assembly 9 by extending the electric cylinders 52. When the pressure sensor 54 detects the pressure, the pressure resistance of the pneumatic motor assembly 9 is tested.
[0035] The remaining structure is the same as that in Example 1.
[0036] Based on embodiments 1-2, the working principle of this utility model is as follows: The pneumatic motor assembly 9 is placed on the bearing end of the movable end of the scissor lift platform 8, and the scissor lift platform 8 is controlled to move its movable end upward and raise it, so that the pneumatic motor assembly 9 is located between the two clamping assemblies 5. Then, the two electric cylinders 52 extend simultaneously to clamp the pneumatic motor assembly 9 between the two push rods 55 for fixation. Pressure is applied to the pneumatic motor assembly 9 by extending the electric cylinders 52. When the pressure sensor 54 detects the pressure, the pressure resistance of the pneumatic motor assembly 9 is detected.
[0037] The servo motor 74 drives the shaft of the pneumatic motor assembly 9 to rotate via the torque meter 75. By adjusting the speed or torque of the servo motor 74, different working conditions from no-load to full-load can be simulated to test the dynamic response capability, starting torque and load stability of the pneumatic motor assembly 9.
[0038] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A pneumatic motor friction test device comprising a test bench base plate (1), the bottom of the test bench base plate (1) is fixed with a supporting leg (2), characterized in that: Both sides of the top of the test bench base plate (1) are fixed with side frames (4), the interiors of the two side frames (4) are fixed with clamping assemblies (5), and the movable ends of the two clamping assemblies (5) are oppositely arranged, and a pneumatic motor assembly (9) is arranged between the movable ends of the two clamping assemblies (5); The rear side of the middle of the top of the test bench base plate (1) is fixed with a torque measurement assembly (7), and the driving end of the torque measurement assembly (7) is detachably connected with the shaft end of the pneumatic motor assembly (9), and the side, close to the torque measurement assembly (7), of the pneumatic motor assembly (9) is provided with a motor positioning block (10).
2. A device for testing the friction of a pneumatic motor according to claim 1, characterized in that: A dial gauge (6) is installed on the side of the top of the test bench base plate (1), close to the torque measurement assembly (7), and two horizontal bubble levels (3) are fixed on the side of the top of the test bench base plate (1), away from the torque measurement assembly (7), and the two horizontal bubble levels (3) are vertically arranged.
3. A friction test device for a pneumatic motor as claimed in claim 2, wherein: The torque measurement assembly (7) comprises a servo motor (74) installed on the top of the test bench base plate (1), the driving end of the side frame (4) is fixedly connected with a torque meter (75), the output end of the torque meter (75) is installed with a shaft coupling (76), and the torque meter (75) is connected with the input end of the pneumatic motor assembly (9) through the shaft coupling (76).
4. A device according to claim 3, wherein: The torque measurement assembly (7) further comprises an installation plate (71) and a motor support (72) arranged on the top of the test bench base plate (1), and the top of the motor support (72) is fixed with a support plate (73) for installing the torque meter (75).
5. A device according to claim 4, wherein: The servo motor (74) is fixed on the vertical end of the motor support (72), and the vertical end of the motor support (72) is provided with a circular hole for the shaft end of the servo motor (74) to pass through.
6. A friction test device for a pneumatic motor as claimed in claim 5, wherein: The clamping assembly (5) comprises a cylinder support (51) and an electric cylinder (52) fixed on the cylinder support (51), the electric cylinder (52) is fixedly connected with a pressure sensor (54) through a joint (53) installed on the movable end of the electric cylinder (52), one end of the pressure sensor (54), away from the electric cylinder (52), is fixedly installed with a push rod (55), the push rod (55) is sleeved with a motor clamping plate (56), and one end of the push rod (55), away from the pressure sensor (54), is provided with a piston top (57), and the side, close to the piston top (57), of the motor clamping plate (56) is provided with an inner groove.
7. A friction test device for a pneumatic motor as claimed in claim 6, wherein: A scissor type lifting platform (8) is installed on the top of the test bench base plate (1) and between the movable ends of the two clamping assemblies (5), and the pneumatic motor assembly (9) is placed on the movable end of the scissor type lifting platform (8).