Clutch friction torque measuring device

Abstract

The utility model discloses a clutch friction torque measuring device which comprises a rotation driving device, an air floating rotary table, a clutch, a torque measuring assembly and a working table, and the rotation driving device is installed and connected on the bottom end position of the working table. The axial connecting assembly is installed on a rotary table of the air floating rotary table, when the inner ring rotates, the load sensor displays a force value, friction torque generated by rotation of the inner ring of the clutch is dynamically measured in the mode that force multiplies a force arm, gas serves as a bearing medium, the friction coefficient is extremely small, and friction resistance is extremely low. Therefore, the deviation interference of a mechanical system to the result is greatly reduced, the accuracy of friction torque measurement in the test process is greatly improved, and positive significance is achieved for correctly evaluating the separation rotating speed of the clutch, the friction torque at each rotating speed and the change trend of the torque.

Description

Technical Field

[0001] The utility model relates to the technical field of clutch measurement, in particular to a clutch friction torque measuring device. Background Art

[0002] In the performance parameter test of the clutch, the common measurement method for measuring the separation speed is to keep the outer ring of the clutch stationary and the inner ring of the clutch rotating, gradually accelerating, testing the speed and friction torque until the friction torque is zero, then stopping the test. During the test, a speed-time curve, a friction torque-time curve, and a friction torque-speed curve can be formed.

[0003] The existing clutch friction torque measuring device is inconvenient to use during the measurement process, and the measurement results have errors and are not accurate enough. Utility Model Content

[0004] The purpose of the utility model is to provide a clutch friction torque measuring device to solve the problems that the existing clutch friction torque measuring device proposed in the above background technology is inconvenient to use during the measurement process, and the measurement results have errors and are not accurate enough.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a clutch friction torque measuring device, comprising a rotary drive device, an air-floating turntable, a clutch, a torque measuring component and a workbench, wherein the rotary drive device is installed and connected to the bottom end of the workbench, an air-floating turntable is provided at the upper end of the workbench, a clutch is provided at the upper end of the air-floating turntable, and a torque measuring component is provided on the workbench on the outer side of the right end of the clutch.

[0006] The slewing drive device comprises a bearing clearance adjustment component, a slewing support bearing, a speed sensor mounting seat, a speed sensor, an inner ring clamping tool, an inner ring mounting plate, a tensioning sleeve, a slewing shaft, a sleeve, a force transmission shaft, a coupling, a steering gear mounting seat, a driving motor, a steering gear and a bearing inner ring pressure cover. The sleeve is installed on a workbench, a slewing support bearing is arranged on the inner side of the sleeve, a bearing clearance adjustment component is arranged in the middle of the slewing support bearing, a steering gear mounting seat is arranged on the outer upper end of the slewing support bearing, a slewing shaft is arranged on the inner side of the slewing support bearing, a bearing inner ring pressure cover is arranged on one side of the slewing support bearing, the driving motor is installed on the steering gear, the steering gear is installed on the steering gear mounting seat, the steering gear output shaft is connected to the force transmission shaft through a coupling, the other end of the force transmission shaft is fixed to the inner wall of the slewing shaft through a tensioning sleeve, and the inner ring mounting plate is fixedly connected to the slewing shaft.

[0007] Wherein, the clutch comprises a clutch outer ring and a clutch inner ring, and the clutch inner ring is pressed onto the inner ring mounting plate by an inner ring pressing tool.

[0008] Among them, the torque measurement assembly includes a circumferential connection assembly, a load sensor, an adjustment shaft, a torque mounting seat and a hinged head. The circumferential connection assembly is installed and connected to the turntable of the air-floating turntable. The circumferential connection assembly and the load sensor are connected through a hinged head. The other end of the load sensor is connected to the adjustment shaft. The adjustment shaft is fixed on the torque mounting seat. The torque mounting seat is installed on the workbench.

[0009] Among them, the outer ring of the clutch is fixed on the air-floating turntable, the inner ring of the clutch is fixed on the rotating shaft, the driving motor is connected to the steering gear to drive the rotating shaft to rotate, thereby driving the inner ring of the clutch to rotate, and the circumferential connection component is installed on the turntable of the air-floating turntable.

[0010] The air-floating turntable is supported by gas in both the axial and radial directions, and has extremely low friction resistance when rotating, so that the measurement of the friction torque of the clutch is more accurate.

[0011] The inner ring mounting disk is tooth-shaped in the circumferential direction and is mounted on the speed sensor on the speed sensor mounting seat.

[0012] In summary, due to the adoption of the above technology, the beneficial effects of the utility model are:

[0013] 1. In the utility model, the rotary main shaft is driven to rotate by connecting the steering gear with the driving motor, thereby driving the inner ring of the clutch to rotate. The axial connection assembly is installed on the turntable of the air-floating turntable. When the inner ring rotates, the load sensor displays the force value, and the friction torque generated by the rotation of the inner ring of the clutch is dynamically measured by multiplying the force by the lever arm.

[0014] 2. In the utility model, by using gas as the carrier medium, it has an extremely small friction coefficient and extremely low friction resistance, thereby greatly reducing the deviation interference of the mechanical system on the results, greatly improving the accuracy of friction torque measurement during the test, and has positive significance for correctly evaluating the clutch disengagement speed and the friction torque and torque change trend at each speed. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a cross-sectional three-dimensional structural schematic diagram of a clutch friction torque measuring device of the utility model;

[0016] Figure 2 This is a side sectional view of a clutch friction torque measuring device of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of a partial rotation drive device of a clutch friction torque measuring device of the utility model;

[0018] Figure 4The utility model is a schematic diagram of the structure of a torque measuring component of a clutch friction torque measuring device.

[0019] In the figure: 100, rotary drive device; 101, bearing clearance adjustment assembly; 102, rotary support bearing; 103, speed sensor mounting seat; 104, speed sensor; 105, inner ring clamping tool; 106, inner ring mounting plate; 107, tension sleeve; 108, rotary shaft; 109, sleeve; 110, power transmission shaft; 111, coupling; 112, steering gear mounting seat; 113, drive motor; 114, steering gear; 115, bearing inner ring pressure cover; 200, air floating turntable; 301, clutch outer ring; 302, clutch inner ring; 400, torque measurement assembly; 401, circumferential connection assembly; 402, load sensor; 403, adjustment shaft; 404, torque mounting seat; 405, hinged head; 500, workbench. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is claimed, but merely represents selected embodiments of the utility model.

[0021] Embodiment 1

[0022] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4A clutch friction torque measuring device comprises a rotary drive device 100, an air-floating turntable 200, a clutch 300, a torque measuring assembly 400 and a workbench 500. The rotary drive device 100 is installed and connected to the bottom end of the workbench 500. The upper end of the workbench 500 is provided with an air-floating turntable 200. The upper end of the air-floating turntable 200 is provided with a clutch 300. The outer side of the right end of the clutch 300 is located on the workbench 500 and a torque measuring assembly 400 is provided. When in use, the workbench 500 is used to install the rotary drive device 100, the air-floating turntable 200, the clutch 300 and the torque measuring assembly 400. When measuring, when the inner ring 302 of the clutch rotates, the outer ring is in a stationary state due to the limiting effect of the torque measuring assembly 400. The circumferential connection component 401 and the load sensor 402 are connected through a hinge joint 405. The other end of the load sensor 402 is connected to the adjustment shaft 403. The adjustment shaft 403 is fixed on the torque mounting seat 404. The torque mounting seat 404 is installed on the workbench 500. The force value fed back by the load sensor 403 is multiplied by the distance from the hinge point to the center of rotation to obtain the friction torque. The inner ring mounting disk 106 is circumferentially toothed. The speed sensor 104 installed on the speed sensor mounting seat 103 dynamically measures the speed of the clutch inner ring 302 by measuring the number of teeth rotated by the inner ring mounting disk 106 per unit time. Through the dynamic measurement of the speed and friction torque, the speed time curve, friction torque and time curve, and friction torque and speed curve required for the test can be obtained.

[0023] In the utility model, the inner ring mounting disk 106 is toothed in the circumferential direction and is mounted on the speed sensor 104 on the speed sensor mounting seat 103. The rotary drive device 100 includes a bearing gap adjustment component 101, a slewing support bearing 102, a speed sensor mounting seat 103, a speed sensor 104, an inner ring clamping tool 105, an inner ring mounting disk 106, a tension sleeve 107, a slewing shaft 108, a sleeve 109, a force transmission shaft 110, a coupling 111, a steering gear mounting seat 112, a drive motor 113, a steering gear 114 and a bearing inner ring pressure cover 115. The sleeve 109 is mounted on the workbench 500. The slewing support bearing 102 is arranged on the inner side of the sleeve 109. The slewing support bearing 102 is arranged on the inner side of the sleeve 109. 02 is provided with a bearing clearance adjustment component 101 in the middle, a steering gear mounting seat 112 is provided at the outer upper end of the slewing support bearing 102, a slewing shaft 108 is provided on the inner side of the slewing support bearing 102, a bearing inner ring pressure cover 115 is provided on one side of the slewing support bearing 102, a driving motor 113 is installed on the steering gear 114, the steering gear 114 is installed on the steering gear mounting seat 112, the output shaft of the steering gear 114 is connected to the power transmission shaft 110 through a coupling 111, and the other end of the power transmission shaft 110 is fixed to the inner wall of the slewing shaft 108 through a tension sleeve 107, the inner ring mounting plate 106 is fixedly connected to the slewing shaft 108, and during installation, the sleeve 109 is installed on the workbench 500, and the slewing support bearing 10 2 is installed in the sleeve 109, the two slewing bearings 102 are arranged back to back, and the bearing gap adjustment component 101 is installed in the middle. The preload force of the slewing bearing 102 is controlled by adjusting the thickness difference of the two adjustment rings. The steering gear mounting seat 112 presses the outer ring of the slewing bearing 102. The slewing shaft 108 is installed on the inner ring of the slewing bearing 102. One end of the inner ring rests on the step of the slewing shaft 108, and the other end is pressed by the bearing inner ring pressure cover 115. The driving motor 113 is installed on the steering gear 114, and the steering gear 114 is installed on the steering gear mounting seat 112. The output shaft of the steering gear 114 is connected to the power transmission shaft 110 through the coupling 111, and the other end of the power transmission shaft 110 is connected to the power transmission shaft 110 through the coupling 111. The tension sleeve 107 is fixed to the inner wall of the rotating shaft 108 to transmit torque and drive the rotating shaft 108 to rotate. The inner ring mounting plate 106 is fixed to the rotating shaft 108. The clutch inner ring 302 is pressed on the inner ring mounting plate 106 by the inner ring clamping tool 105 and rotates under the drive of the rotating shaft 108. The air-floating turntable 200 is installed on the workbench 500. The device uses gas as the bearing medium and has a very small friction coefficient and very low friction resistance, thereby greatly reducing the deviation interference of the mechanical system on the results, greatly improving the accuracy of the friction torque measurement during the test, and has positive significance for correctly evaluating the clutch disengagement speed and the friction torque and torque change trend at each speed.

[0024] In the utility model, the air-floating turntable 200 is supported by gas in both the axial and radial directions, and has extremely low friction resistance when rotating, so that the measurement of the friction torque of the clutch 300 is more accurate. During use, the rotation speed of the clutch inner ring 302 is dynamically measured by measuring the number of teeth rotated by the inner ring mounting disk 106.

[0025] Working principle: When in use, the workbench 500 is used to install the rotary drive device 100, the air-floating turntable 200, the clutch 300 and the torque measuring assembly 400. When measuring, when the inner ring 302 of the clutch rotates, the outer ring is in a stationary state due to the limiting effect of the torque measuring assembly 400. The circumferential connecting assembly 401 and the load sensor 402 are connected through the hinge joint 405. The other end of the load sensor 402 is connected to the adjustment shaft 403, and the adjustment shaft 403 is fixed on the torque mounting seat 404. The torque mounting seat 404 is fixed to the torque mounting seat 404. 04 is installed on the workbench 500. The force value fed back by the load sensor 403 is multiplied by the distance from the hinge point to the center of rotation to obtain the friction torque. The inner ring mounting disk 106 is toothed in the circumference. The speed sensor 104 installed on the speed sensor mounting seat 103 dynamically measures the speed of the clutch inner ring 302 by measuring the number of teeth rotated by the inner ring mounting disk 106 per unit time. Through the dynamic measurement of the speed and friction torque, the speed time curve, friction torque and time curve, and friction torque and speed curve required for the test can be obtained.

[0026] Embodiment 2

[0027] Reference Figure 1 , Figure 2 and Figure 4 A clutch friction torque measuring device. Compared with the second embodiment, the torque measuring assembly 400 of this embodiment includes a circumferential connection assembly 401, a load sensor 402, an adjustment shaft 403, a torque mounting seat 404 and a hinge joint 405. The circumferential connection assembly 401 is installed and connected to the turntable of the air-floating turntable 200. The circumferential connection assembly 401 and the load sensor 402 are connected through the hinge joint 405. The other end of the load sensor 402 is connected to the adjustment shaft 403. The adjustment shaft 403 is fixed on the torque mounting seat 404. The torque mounting seat 404 is installed on the workbench 500.

[0028] Working principle: When installing the torque measuring component 400, the circumferential connecting component 401 is installed on the turntable of the air-floating turntable 200. When the inner ring 302 of the clutch rotates, the outer ring is in a stationary state due to the limiting effect of the torque measuring component 400. The circumferential connecting component 401 and the load sensor 402 are connected by a hinge joint 405. The other end of the load sensor 402 is connected to the adjustment shaft 403. The adjustment shaft 403 is fixed on the torque mounting seat 404. The torque mounting seat 404 is installed on the workbench 500. The force value fed back by the load sensor 403 is multiplied by the distance from the hinge point to the center of rotation, which is the friction torque.

[0029] Embodiment 3

[0030] Reference Figure 1 , Figure 2 and Figure 3 , a clutch friction torque measuring device, compared with the third embodiment, the clutch 300 in this embodiment includes a clutch outer ring 301 and a clutch inner ring 302, the clutch inner ring 302 is pressed on the inner ring mounting plate 106 by the inner ring pressing tool 105, the clutch outer ring 301 is fixed on the air floating turntable 200, the clutch inner ring 302 is fixed on the rotating shaft 108, the driving motor 113 is connected to the steering gear 114 to drive the rotating shaft 108 to rotate, thereby driving the clutch inner ring 302 to rotate, and the circumferential connection component 401 is installed on the turntable of the air floating turntable 200.

[0031] Working principle: When in use, the inner ring mounting disk 106 is toothed in the circumference and is mounted on the speed sensor 104 on the speed sensor mounting seat 103. When in use, the speed of the clutch inner ring 302 is dynamically measured by measuring the number of teeth rotated by the inner ring mounting disk 106. Through the dynamic measurement of the speed and friction torque, the speed-time curve, friction torque-time curve, and friction torque-speed curve required for the test can be obtained.

[0032] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

Claims

1. A clutch friction torque measuring device, comprising a rotary drive device (100), an air-floating turntable (200), a clutch (300), a torque measuring assembly (400) and a workbench (500), characterized in that: The rotary drive device (100) is installed and connected to the bottom end of the workbench (500); an air-floating turntable (200) is arranged on the upper end of the workbench (500); a clutch (300) is arranged on the upper end of the air-floating turntable (200); and a torque measuring component (400) is arranged on the right outer side of the clutch (300) on the workbench (500).

2. A clutch friction torque measuring device according to claim 1, characterized in that: The rotary drive device (100) comprises a bearing clearance adjustment component (101), a rotary support bearing (102), a speed sensor mounting seat (103), a speed sensor (104), an inner ring clamping tool (105), an inner ring mounting plate (106), a tension sleeve (107), a rotary shaft (108), a sleeve (109), a power transmission shaft (110), a coupling (111), a steering gear mounting seat (112), a driving motor (113), a steering gear (114) and a bearing inner ring pressure cover (115); the sleeve (109) is mounted on a workbench (500); a rotary support bearing (102) is arranged on the inner side of the sleeve (109); and a bearing clearance adjustment device (115) is arranged in the middle of the rotary support bearing (102). The component (101) comprises a steering gear mounting seat (112) disposed at the outer upper end of the slewing support bearing (102), a slewing shaft (108) disposed inside the slewing support bearing (102), a bearing inner ring pressure cover (115) disposed on one side of the slewing support bearing (102), the driving motor (113) mounted on the steering gear (114), the steering gear (114) mounted on the steering gear mounting seat (112), the output shaft of the steering gear (114) connected to the power transmission shaft (110) through a coupling (111), the other end of the power transmission shaft (110) fixed to the inner wall of the slewing shaft (108) through a tension sleeve (107), and the inner ring mounting plate (106) fixedly connected to the slewing shaft (108).

3. A clutch friction torque measuring device according to claim 2, characterized in that: The clutch (300) comprises a clutch outer ring (301) and a clutch inner ring (302), and the clutch inner ring (302) is pressed onto an inner ring mounting plate (106) by an inner ring pressing tool (105).

4. A clutch friction torque measuring device according to claim 3, characterized in that: The torque measuring assembly (400) comprises a circumferential connection assembly (401), a load sensor (402), an adjustment shaft (403), a torque mounting seat (404) and a hinge joint (405); the circumferential connection assembly (401) is installed and connected to the turntable of the air-floating turntable (200); the circumferential connection assembly (401) and the load sensor (402) are connected via the hinge joint (405); the other end of the load sensor (402) is connected to the adjustment shaft (403); the adjustment shaft (403) is fixed on the torque mounting seat (404); and the torque mounting seat (404) is installed on the workbench (500).

5. A clutch friction torque measuring device according to claim 4, characterized in that: The clutch outer ring (301) is fixed on the air-floating turntable (200), the clutch inner ring (302) is fixed on the rotating shaft (108), the driving motor (113) is connected to the steering gear (114) to drive the rotating shaft (108) to rotate, thereby driving the clutch inner ring (302) to rotate, and the circumferential connection component (401) is installed on the turntable of the air-floating turntable (200).

6. A clutch friction torque measuring device according to claim 1, characterized in that: The air-floating turntable (200) uses gas as a bearing body in both the axial and radial directions and has extremely low friction resistance when rotating, so that the friction torque of the clutch (300) can be measured more accurately.

7. A clutch friction torque measuring device according to claim 2, characterized in that: The inner ring mounting disk (106) is tooth-shaped in the circumferential direction and is mounted on the rotation speed sensor (104) on the rotation speed sensor mounting seat (103).

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