A high-speed controllable disengagement clutch test device and test method thereof

Abstract

A high-speed controllable disengaging clutch test device and a test method thereof, relating to the technical field of performance testing. The invention aims to solve the problems of large test bench scale and long test cycle in the existing high-speed controllable disengaging clutch test. In the high-speed controllable disengaging clutch test device described in the invention, one end of the high-speed shaft of the speed increaser is used to connect one end of the main shaft of the tested clutch, one end of the high-speed shaft of the speed reduction box is used to connect the other end of the main shaft of the tested clutch, one end of the low-speed shaft of the speed increaser can be coaxially detachably connected with the main shaft of the hydraulic loader, the power output shaft of the traction motor is coaxially connected with the other end of the low-speed shaft of the speed increaser, the low-speed shaft of the speed reduction box is a hollow shaft, the oil inlet pipe of the hydraulic loader passes through the low-speed shaft and is detachably connected to the control oil station of the hydraulic loader, and the other end of the low-speed shaft can be coaxially detachably connected with the main shaft of the dynamometer; the sensor is used to collect the torque and speed transmitted by the tested clutch, and the speed ratio of the speed increaser and the speed reduction box is the same.

Description

Technical Field

[0001] The invention belongs to the technical field of performance testing, in particular to testing a high-speed controllable disengaging clutch. Background Art

[0002] The high-speed controllable disengagement clutch is a wet multi-plate friction clutch, which is mainly composed of an input component, an output component, a friction plate, a light plate, a piston, a return spring, an oil inlet device, etc. The friction plate rotates with the input component, and the light plate rotates with the output component. When the working oil is introduced into the clutch, the piston presses the friction plate and the light plate tightly, and friction is generated between the friction plate and the light plate, and the clutch is connected to achieve torque transmission. When the working oil is turned off, the piston is reset under the action of the return spring, the light plate and the friction plate are separated, and the clutch is disengaged. The wet multi-plate friction clutch has the characteristics of simple control, high reliability, and the ability to achieve speed difference engagement and rapid disengagement between the main engine and the load. As a connecting device in the mechanical transmission system, it is widely used in the shipbuilding, engineering machinery and other industries. Especially in the single main engine and dual-load power system with a high speed, as a connecting element between the main engine and the load, the high-speed controllable disconnection clutch has obvious advantages. When the main engine drives two loads to work at the same time, if any load fails, the high-speed controllable disconnection clutch can quickly and actively disengage to cut off the connection between the main engine and the faulty load, so as not to affect the normal operation of the other load.

[0003] A series of performance tests are required for high-speed controllable disengagement clutches after assembly and before delivery. Because it is a wet multi-plate friction clutch, it is usually subjected to full-load operation test, displacement torque test, and engagement and disengagement test. In general, the full-load loading test adopts the mechanical power closed test method, while the displacement torque test and engagement and disengagement test require an open test method. The clutch output end is an appropriate load or inertia rotor. Therefore, a high-speed controllable disengagement clutch requires 2 to 3 sets of test equipment, which are installed and disassembled 2 to 3 times to meet its performance test requirements. This will greatly increase the construction scale, cost and test cycle of the test bench. Summary of the invention

[0004] The present invention aims to solve the problem that when testing a high-speed controllable disengaging clutch, 2 to 3 sets of test devices are needed, which are installed and disassembled 2 to 3 times to meet the performance test requirements, greatly increasing the construction scale of the test bench and the test cycle. A high-speed controllable disengaging clutch test device and test method are provided, which can realize full-load loading test, belt displacement torque test and engagement and disengagement test on the same platform.

[0005] A high-speed controllable disengagement clutch test device, comprising: a traction motor 500, a speed increasing box 400, a sensor 300, a speed reducing box 100, a hydraulic loader 700 and a dynamometer 900;

[0006] One end of the high-speed shaft of the speed increaser 400 is used to connect one end of the main shaft of the tested clutch 200, one end of the high-speed shaft of the speed reducer 100 is used to connect the other end of the main shaft of the tested clutch 200, one end of the low-speed shaft of the speed increaser 400 can be coaxially detachably connected to the main shaft of the hydraulic loader 700, the power output shaft of the traction motor 500 is coaxially connected to the other end of the low-speed shaft of the speed increaser 400, the low-speed shaft 110 of the speed reducer 100 is a hollow shaft, the oil inlet pipe 730 of the hydraulic loader 700 coaxially passes through the low-speed shaft 110 from one end of the low-speed shaft 110, and can be detachably connected to the control oil station 710 of the hydraulic loader 700, and the other end of the low-speed shaft 110 can be coaxially detachably connected to the main shaft of the dynamometer 900;

[0007] One end of the high-speed shaft of the speed increaser 400 and one end of the low-speed shaft are in the same direction, and one end of the high-speed shaft of the speed reductionr 100 and one end of the low-speed shaft are in the same direction;

[0008] The sensor 300 is used to collect the torque and rotation speed transmitted by the tested clutch 200. The speed ratio of the speed increaser 400 and the speed reductionr 100 is the same.

[0009] Preferably, the speed increasing box 400 and the hydraulic loader 700 are connected via a loader coupling 600 .

[0010] Preferably, the reduction gearbox 100 is connected to the dynamometer 900 via a dynamometer coupling 800 .

[0011] Preferably, a rotary oil inlet joint 720 is provided at the end of the oil inlet pipe 730 of the hydraulic loader 700 , and the rotary oil inlet joint 720 and the dynamometer coupling 800 are simultaneously mounted on the flange of the low-speed shaft 110 .

[0012] Preferably, the dynamometer coupling 800 is connected to a connecting flange 910 of the dynamometer 900 .

[0013] Preferably, when the reduction gearbox 100 is disconnected from the dynamometer 900, the other end of the low-speed shaft 110 is closed using the oil inlet cover 740, and a fixed joint 750 is provided on the oil inlet cover 740 to control the oil inside the oil station 710 to enter the hydraulic loader 700 through the fixed joint 750, the rotating oil inlet joint 720 and the oil inlet pipe 730.

[0014] Preferably, the outer shell of the reduction box 100 is provided with a shell stop 120 and a threaded hole 130 , and the oil inlet cover 740 is fixedly connected to the reduction box 100 by means of screws through the shell stop 120 and the threaded hole 130 .

[0015] A test method for a high-speed controllable disengaging clutch test device includes the following test process:

[0016] Engagement test of the tested clutch 200: disconnect the speed increasing box 400 and the hydraulic loader 700, connect the speed increasing box 400, the tested clutch 200, the reduction box 100, the hydraulic loader 700 and the dynamometer 900, use the drag motor 500 and the speed increasing box 400 as the input of the tested clutch 200, and use the reduction box 100 and the dynamometer 900 as the output of the tested clutch 200. When the reduction box 100 is stationary, start the drag motor 500 to generate a rotation speed at the input end of the tested clutch 200 and control the tested clutch 200 to achieve engagement. At the same time, collect the torque and rotation speed at the input end of the tested clutch 200 and the rotation speed at the output end of the tested clutch 200.

[0017] Disengagement test of the tested clutch 200: disconnect the speed increasing box 400 and the hydraulic loader 700, connect the speed increasing box 400, the tested clutch 200, the speed reducing box 100, the hydraulic loader 700 and the dynamometer 900, the drag motor 500 and the speed increasing box 400 as the input of the tested clutch 200, the speed reducing box 100 and the dynamometer 900 as the output of the tested clutch 200, when the tested clutch 200 is in the engaged state, start the drag motor 500 to make the tested clutch 200 reach the rated speed, the dynamometer 900 applies a load power far less than the rated power of the tested clutch 200 to the output end of the tested clutch 200, so that the tested clutch 200 is disengaged, and at the same time, collect the torque and speed of the input end of the tested clutch 200 and the speed of the output end of the tested clutch 200;

[0018] Displacement torque test of the tested clutch 200: disconnect the speed increasing box 400 and the hydraulic loader 700, connect the speed increasing box 400, the tested clutch 200, the speed reducing box 100, the hydraulic loader 700 and the dynamometer 900, use the drag motor 500 and the speed increasing box 400 as the input of the tested clutch 200, and use the speed reducing box 100 and the dynamometer 900 as the output of the tested clutch 200, start the drag motor 500 to make the tested clutch 200 reach the rated speed, and use the torque measured by the sensor 300 at this time as the displacement torque of the tested clutch 200;

[0019] Full-load loading test of the clutch 200 under test: the reduction gearbox 100 and the dynamometer 900 are disconnected, and a power closed system is formed by the speed increasing box 400, the clutch 200 under test, the reduction gearbox 100, the hydraulic loader 700 and the traction motor 500. The traction motor 500 is used to drive the power closed system to run and reach the rated speed. The hydraulic loader 700 applies torque to the power closed system, and the sensor 300 collects the torque and speed transmitted by the clutch 200 under test in real time.

[0020] The beneficial effects of the present invention are as follows: by utilizing one test bench, without disassembling or assembling the clutch, full load loading test, belt displacement torque test and engagement and disengagement test of the high-speed controllable disengaging clutch can be realized by simply adjusting the connection relationship of each component, thereby reducing the scale of test bench construction, shortening the test cycle, and saving the economic cost and time cost of the performance verification test of this type of clutch. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a high-speed controllable disengagement clutch testing device according to the present invention;

[0022] Figure 2 It is a schematic diagram of the test device structure for belt displacement torque test and engagement and disengagement test;

[0023] Figure 3 It is a schematic diagram of the test device structure during the loading test;

[0024] Figure 4 It is a structural schematic diagram of the connection mode of the low-speed shaft of the reduction gearbox during the belt displacement torque test and the engagement and disengagement test;

[0025] Figure 5 This is a structural diagram of the low-speed shaft connection method of the reduction gearbox during the loading test.

[0026] In the figure, 100. reduction box, 200. tested clutch, 300. sensor, 400. speed increase box, 500. drag motor, 600. loader coupling, 700. hydraulic loader, 800. dynamometer coupling, 900. dynamometer, 710. control oil station, 720. rotating oil inlet joint, 730. oil inlet pipe, 740. oil inlet cover, 750. fixed joint, 110. low speed shaft, 120. housing stop, 130. threaded hole, 910. connecting flange. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0028] Specific implementation method 1: This implementation method is described in detail with reference to the drawings. This implementation method 1. A high-speed controllable disengagement clutch testing device is characterized in that it includes: a traction motor 500, a speed increaser 400, a sensor 300, a speed reducer 100, a hydraulic loader 700 and a dynamometer 900.

[0029] One end of the high-speed shaft of the speed increaser 400 is used to connect to one end of the main shaft of the tested clutch 200, one end of the high-speed shaft of the speed reduction box 100 is used to connect to the other end of the main shaft of the tested clutch 200, one end of the low-speed shaft of the speed increaser 400 can be coaxially and detachably connected to the main shaft of the hydraulic loader 700, the power output shaft of the traction motor 500 is coaxially connected to the other end of the low-speed shaft of the speed increaser 400, the low-speed shaft 110 of the speed reduction box 100 is a hollow shaft, the oil inlet pipe 730 of the hydraulic loader 700 coaxially passes through the low-speed shaft 110 from one end of the low-speed shaft 110, and can be detachably connected to the control oil station 710 of the hydraulic loader 700, and the other end of the low-speed shaft 110 can be coaxially and detachably connected to the main shaft of the dynamometer 900.

[0030] One end of the high-speed shaft of the speed increaser 400 and one end of the low-speed shaft are in the same direction, and one end of the high-speed shaft of the speed reductionr 100 and one end of the low-speed shaft are in the same direction.

[0031] The sensor 300 is used to collect the torque and rotation speed transmitted by the tested clutch 200. The speed ratio of the speed increaser 400 and the speed reductionr 100 is the same.

[0032] In actual application, a rotary oil inlet joint 720 is provided at the end of the oil inlet pipe 730 of the hydraulic loader 700, and the rotary oil inlet joint 720 and the dynamometer coupling 800 are simultaneously installed on the flange of the low-speed shaft 110. The dynamometer coupling 800 is connected to the connecting flange 910 of the dynamometer 900. When the reduction box 100 and the dynamometer 900 are disconnected, the other end of the low-speed shaft 110 is closed by using the oil inlet cover 740, and a fixed joint 750 is provided on the oil inlet cover 740, and the oil in the control oil station 710 enters the hydraulic loader 700 through the fixed joint 750, the rotary oil inlet joint 720 and the oil inlet pipe 730. The outer shell of the reduction box 100 is provided with a shell stop 120 and a threaded hole 130, and the oil inlet cover 740 is fixedly connected to the reduction box 100 by screws through the shell stop 120 and the threaded hole 130.

[0033] A high-speed controllable disengaging clutch test device described in this embodiment can realize the full-load operation test, belt displacement torque test, and engagement and disengagement test of the high-speed controllable disengaging clutch on the same platform through the installation and adjustment of the coupling, thereby reducing the scale of test bench construction, shortening the test cycle, and saving the economic cost and time cost of this type of clutch performance verification test.

[0034] Specific implementation method 2: The test method of a high-speed controllable disengagement clutch test device described in this implementation method includes the following test process:

[0035] Engagement test of the test clutch 200: disconnect the speed increaser 400 and the hydraulic loader 700, connect the speed increaser 400, the test clutch 200, the reduction gearbox 100, the hydraulic loader 700 and the dynamometer 900, the drag motor 500 and the speed increaser 400 as the input of the test clutch 200, the reduction gearbox 100 and the dynamometer 900 as the output of the test clutch 200, start the drag motor 500 when the reduction gearbox 100 is stationary, so that the input end of the test clutch 200 generates a rotation speed, and control the test clutch 200 to achieve engagement, and at the same time collect the torque and rotation speed of the input end of the test clutch 200 and the rotation speed of the output end of the test clutch 200.

[0036] Disengagement test of the tested clutch 200: disconnect the speed increasing box 400 and the hydraulic loader 700, connect the speed increasing box 400, the tested clutch 200, the reduction box 100, the hydraulic loader 700 and the dynamometer 900, the drag motor 500 and the speed increasing box 400 as the input of the tested clutch 200, the reduction box 100 and the dynamometer 900 as the output of the tested clutch 200, when the tested clutch 200 is in the engaged state, start the drag motor 500 to make the tested clutch 200 reach the rated speed, the dynamometer 900 applies a load power far less than the rated power of the tested clutch 200 to the output end of the tested clutch 200, so that the tested clutch 200 is disengaged, and at the same time, collect the torque and speed of the input end of the tested clutch 200 and the speed of the output end of the tested clutch 200.

[0037] Displacement torque test of the clutch 200 under test: disconnect the speed increaser 400 and the hydraulic loader 700, connect the speed increaser 400, the clutch 200 under test, the reduction gearbox 100, the hydraulic loader 700 and the dynamometer 900, use the drag motor 500 and the speed increaser 400 as the input of the clutch 200 under test, and use the reduction gearbox 100 and the dynamometer 900 as the output of the clutch 200 under test, start the drag motor 500 to make the clutch 200 under test reach the rated speed, and use the torque measured by the sensor 300 at this time as the displacement torque of the clutch 200 under test.

[0038] Full-load loading test of the clutch 200 under test: the reduction gearbox 100 and the dynamometer 900 are disconnected, and a power closed system is formed by the speed increasing box 400, the clutch 200 under test, the reduction gearbox 100, the hydraulic loader 700 and the traction motor 500. The traction motor 500 is used to drive the power closed system to run and reach the rated speed. The hydraulic loader 700 applies torque to the power closed system, and the sensor 300 collects the torque and speed transmitted by the clutch 200 under test in real time.

[0039] Although the present invention is described herein with reference to specific embodiments, it should be understood that these embodiments are merely examples of the principles and applications of the present invention. It should therefore be understood that many modifications may be made to the exemplary embodiments and that other arrangements may be devised without departing from the spirit and scope of the present invention as defined by the appended claims. It should be understood that the various dependent claims and features described herein may be combined in a manner different from that described in the original claims. It should also be understood that the features described in conjunction with a single embodiment may be used in other described embodiments.

Claims

1. A high-speed controllable disengagement clutch test device, characterized in that: include: A traction motor (500), a speed increasing box (400), a sensor (300), a speed reducing box (100), a hydraulic loader (700) and a dynamometer (900); One end of the high-speed shaft of the speed increaser (400) is used to connect to one end of the main shaft of the tested clutch (200), one end of the high-speed shaft of the speed reductionr (100) is used to connect to the other end of the main shaft of the tested clutch (200), one end of the low-speed shaft of the speed increaser (400) can be coaxially detachably connected to the main shaft of the hydraulic loader (700), the power output shaft of the traction motor (500) is coaxially connected to the other end of the low-speed shaft of the speed increaser (400), the low-speed shaft (110) of the speed reductionr (100) is a hollow shaft, the oil inlet pipe (730) of the hydraulic loader (700) coaxially passes through the low-speed shaft (110) from one end of the low-speed shaft (110) and can be detachably connected to the control oil station (710) of the hydraulic loader (700), and the other end of the low-speed shaft (110) can be coaxially detachably connected to the main shaft of the dynamometer (900); One end of the high-speed shaft of the speed increaser (400) and one end of the low-speed shaft are in the same direction, and one end of the high-speed shaft of the speed reductionr (100) and one end of the low-speed shaft are in the same direction; The sensor (300) is used to collect the torque and rotation speed transmitted by the tested clutch (200), and the speed ratio of the speed increaser (400) and the speed reductionr (100) is the same; The reduction box (100) is connected to the dynamometer (900) via a dynamometer coupling (800); A rotary oil inlet joint (720) is provided at the end of the oil inlet pipe (730) of the hydraulic loader (700), and the rotary oil inlet joint (720) and the dynamometer coupling (800) are simultaneously mounted on the flange of the low-speed shaft (110); When the reduction box (100) is disconnected from the dynamometer (900), the other end of the low-speed shaft (110) is sealed by using the oil inlet housing (740). A fixed joint (750) is provided on the oil inlet housing (740), and the oil in the control oil station (710) enters the hydraulic loader (700) through the fixed joint (750), the rotating oil inlet joint (720) and the oil inlet pipe (730).

2. A high-speed controllable disengagement clutch test device according to claim 1, characterized in that: The speed increasing box (400) and the hydraulic loader (700) are connected via a loader coupling (600).

3. A high-speed controllable disengagement clutch test device according to claim 1, characterized in that: The dynamometer coupling (800) is connected to the connection flange (910) of the dynamometer (900).

4. A high-speed controllable disengagement clutch test device according to claim 1, characterized in that: The outer shell of the reduction box (100) is provided with a shell stop (120) and a threaded hole (130), and the oil inlet cover (740) is fixedly connected to the reduction box (100) by means of screws through the shell stop (120) and the threaded hole (130).

5. A test method for a high-speed controllable disengagement clutch test device, characterized in that: The test method is based on a high-speed controllable disengaging clutch test device as claimed in any one of claims 1 to 4, The test method includes the following test procedures: Engagement test of the tested clutch (200): the speed increasing box (400) and the hydraulic loader (700) are disconnected, the speed increasing box (400), the tested clutch (200), the speed reducing box (100), the hydraulic loader (700) and the dynamometer (900) are connected, the traction motor (500) and the speed increasing box (400) are used as the input of the tested clutch (200), the speed reducing box (100) and the dynamometer (900) are used as the output of the tested clutch (200), the traction motor (500) is started when the speed reducing box (100) is stationary so that the input end of the tested clutch (200) generates a rotation speed, and the tested clutch (200) is controlled to achieve engagement, and at the same time, the torque and rotation speed of the input end of the tested clutch (200) and the rotation speed of the output end of the tested clutch (200) are collected; Disengagement test of the tested clutch (200): the speed increasing gearbox (400) and the hydraulic loader (700) are disconnected, the speed increasing gearbox (400), the tested clutch (200), the speed reducing gearbox (100), the hydraulic loader (700) and the dynamometer (900) are connected, the drag motor (500) and the speed increasing gearbox (400) are used as the input of the tested clutch (200), the speed reducing gearbox (100) and the dynamometer (900) are used as the output of the tested clutch (200), when the tested clutch (200) is in the engaged state, the drag motor (500) is started to make the tested clutch (200) reach the rated speed, the dynamometer (900) applies a load power far less than the rated power of the tested clutch (200) to the output end of the tested clutch (200), so that the tested clutch (200) is disengaged, and at the same time, the torque and speed of the input end of the tested clutch (200) and the speed of the output end of the tested clutch (200) are collected; A torque test of the clutch (200) under test: the speed increasing box (400) and the hydraulic loader (700) are disconnected, the speed increasing box (400), the clutch (200) under test, the speed reducing box (100), the hydraulic loader (700) and the dynamometer (900) are connected, the traction motor (500) and the speed increasing box (400) are used as the input of the clutch (200) under test, the speed reducing box (100) and the dynamometer (900) are used as the output of the clutch (200) under test, the traction motor (500) is started to make the clutch (200) under test reach the rated speed, and the torque measured by the sensor (300) at this time is used as the torque of the clutch (200) under test; Full load loading test of the tested clutch (200): the reduction gearbox (100) and the dynamometer (900) are disconnected, a power closed system is formed by the speed increasing gearbox (400), the tested clutch (200), the reduction gearbox (100), the hydraulic loader (700) and the traction motor (500), the traction motor (500) is used to drive the power closed system to run and reach the rated speed, the hydraulic loader (700) applies torque to the power closed system, and the sensor (300) collects the torque and speed transmitted by the tested clutch (200) in real time.

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