Portable reduction gearbox radial force testing device

Abstract

The utility model provides a portable reduction gearbox radial force testing device, and relates to the radial force testing device field, the portable reduction gearbox radial force testing device comprises a pedestal and a fixing tool, the upper end of the pedestal is provided with a guide groove and tooth grooves, a bidirectional cylinder is arranged between the tooth grooves, and the outer ends of piston rods at two sides of the bidirectional cylinder are connected with retaining blocks; the fixing tool is slidably connected to the upper end of the base, the end edge of the inner side of the fixing tool is connected with the retaining block, belt wheels are installed on the front side of the fixing tool, a belt is connected between the belt wheels, a motor is installed on the inner side of the fixing tool, and a reduction gearbox body is connected to the front side of the motor. And the output shaft end of the reduction gearbox body is connected with a radial force sensor. The gearbox radial torque detection tool solves the problems that a gearbox radial torque detection tool in the prior art is not comprehensive in detection and is inconvenient to carry out radial force detection on a gearbox in a running state.

Description

Technical Field

[0001] The utility model relates to the technical field of radial force testing devices, in particular to a portable reduction box radial force testing device. Background Art

[0002] At present, when customers use motors and reducers on site, the requirements for radial force and axial force of reducers are getting higher and higher due to the diversification of applications. When abnormal noise and damage occur in the bearings of reducers during application, many customers have certain doubts about the radial force marked on the product manual. Therefore, it is necessary to conduct radial force test and verification to determine whether the damage of reducer is due to improper application or quality problems of the reducer itself. After searching, the prior art (application number: CN202120504718.X) records "a gearbox bearing radial torque detection tool, including a tool seat and a mandrel rotatably arranged on the tool seat, a bearing to be tested is sleeved on the mandrel, a loading bushing is arranged outside the bearing to be tested, a loading bearing is arranged outside the loading bushing, a radial loading mechanism for applying radial force to the outer ring of the loading bearing is arranged on the outer ring of the loading bearing, a dynamometer is arranged on the loading bushing, and the bearing to be tested is the tapered roller bearing to be tested. Before the test, the loading bearing is installed on the loading bushing, and then the loading bushing is sleeved on the bearing to be tested, and finally the bearing to be tested is sleeved on the mandrel. During the test, the mandrel is driven to rotate by an external driving device, and the mandrel drives the inner ring of the bearing to be tested to rotate, the radial loading mechanism applies radial force to the bearing to be tested through the loading bearing, and then the loading bushing is tightened along the radial direction of the bearing to be tested by the dynamometer, so as to detect the torque of the bearing to be tested."

[0003] However, the gearbox radial torque detection tooling in the prior art only detects the radial force of the bearing, and does not consider the influence of the torque on the output shaft on the radial force. As for the cause of gearbox damage, there may be assembly problems between the bearing and the output shaft. Therefore, even if the bearing is in a qualified state before refitting, there may also be problems in the process of assembling it into the gearbox and then using it. Therefore, the above device is not convenient for radial force detection when the gearbox is in operation. Utility Model Content

[0004] In order to overcome the defects of the prior art, a portable reduction gearbox radial force testing device is provided to solve the problems that the gearbox radial torque detection tooling in the prior art has incomplete detection and is not convenient for radial force detection of the gearbox in operation.

[0005] To achieve the above-mentioned purpose, a portable reduction gearbox radial force testing device is provided, comprising: a base and a fixed tool, the upper end of the base is provided with a guide groove and a tooth groove, and a bidirectional cylinder is installed between the tooth grooves, and the outer ends of the piston rods on both sides of the bidirectional cylinder are connected with stop blocks, the fixed tool is slidably connected to the upper end of the base, and the inner end edge of the fixed tool is connected to the stop block, and a pulley is installed on the front side of the fixed tool, and a belt is connected between the pulleys, a motor is installed on the inner side of the fixed tool, and the front side of the motor is connected to a reduction gearbox body, and the output shaft end of the reduction gearbox body is connected to a radial force sensor, the output shaft end of the reduction gearbox body is connected to a torque sensor through a first coupling and a second coupling, and a connecting shaft is connected to the front end of the second coupling, and the connecting shaft is connected to the pulley.

[0006] Furthermore, the guide grooves and tooth grooves are each provided with two groups, and the backstop block slides on the upper side of the tooth groove, and the backstop bolt connected inside the backstop block is inserted into the tooth groove.

[0007] Furthermore, the fixing fixture is configured as a U-shaped slot plate structure, and a sliding block is provided at the lower end of the slot plate, and the sliding block is slidably connected in the guide slot.

[0008] Furthermore, the radial force sensor is configured as a cylindrical structure, and the radial force sensor is rotatably sleeved on the outer wall of the reduction box body, and the lower end of the radial force sensor is connected to a fixing seat, and the fixing seat is fixed to the base by bolts.

[0009] Furthermore, the shafts at both ends of the torque sensor are connected to one end of the first coupling and one end of the second coupling respectively, and the torque sensor is configured as a dynamic torque sensor.

[0010] Furthermore, the fixed tooling is provided with two groups, and the connecting shaft rotates and penetrates the front side plate of the fixed tooling, and the pulley and the belt are located on the outside of the fixed tooling.

[0011] The beneficial effects of the utility model are:

[0012] 1. When in use, first connect the reduction box with the motor, as well as the reduction box output shaft and the coupling, then start the two-way cylinder to push the two sets of fixed tooling away from each other to the outside, thereby tightening the belt, and then tighten the stop bolt in the tooth groove to fix it, and then start a set of motors on the inside of the fixed tooling, and the connecting shaft on the inside of the other side of the fixed tooling is not connected to the reduction box, so that the pulley on this side is used as a driven wheel, and then the output shaft of the reduction box is driven to rotate under the drive of the motor, and the torque of the output shaft is detected by the torque sensor at the same time, and the tension of the belt is appropriately adjusted according to the required size. At this time, the radial force on the output shaft can be tested by the radial force sensor, thereby realizing the detection of the radial force of the reduction box when it is in operation, and at the same time, the output shaft and the bearing assembly can be properly detected;

[0013] 2. The guide groove and bidirectional cylinder arranged on the upper end of the base are used to adjust the belt tension during the detection process, and then the output shaft torque is detected through the connecting shaft, coupling and torque sensor. At the same time, the torque sensor and radial force sensor are connected to the external controller to obtain the relationship between the radial force on the output shaft under different torques. Therefore, it is possible to intuitively determine whether the radial force of the output shaft meets the requirements and provide more accurate data for the detection of the radial force of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a front view structural schematic diagram of an embodiment of the utility model.

[0015] Figure 2 It is a schematic diagram of the top structure of an embodiment of the utility model.

[0016] Figure 3 This is a schematic diagram of the axial cross-sectional structure of the radial force sensor connection according to an embodiment of the utility model.

[0017] Figure 4 For the utility model embodiment Figure 2 Schematic diagram of the structure at point A in the middle.

[0018] In the figure: 1. base; 11. guide groove; 12. tooth groove; 2. fixing tool; 21. pulley; 22. belt; 23. stop block; 231. stop bolt; 3. bidirectional cylinder; 4. motor; 5. reduction gearbox body; 51. output shaft; 6. radial force sensor; 61. fixing seat; 7. first coupling; 8. torque sensor; 9. second coupling; 10. connecting shaft. DETAILED DESCRIPTION

[0019] Reference Figures 1 to 4 As shown, the utility model provides a portable reduction gearbox radial force testing device, comprising: a base 1 and a fixing tool 2.

[0020] Specifically, a guide groove 11 and a tooth groove 12 are opened at the upper end of the base 1, and a two-way cylinder 3 is installed between the tooth grooves 12, and stop blocks 23 are connected to the outer ends of the piston rods on both sides of the two-way cylinder 3, the fixed tooling 2 is slidably connected to the upper end of the base 1, and the inner end edge of the fixed tooling 2 is connected to the stop block 23, and a pulley 21 is installed on the front side of the fixed tooling 2, and a belt 22 is connected between the pulleys 21, a motor 4 is installed on the inner side of the fixed tooling 2, and a reduction box body 5 is connected to the front side of the motor 4, and a radial force sensor 6 is connected to the end of the output shaft 51 of the reduction box body 5, the output shaft 51 of the reduction box body 5 is connected to the torque sensor 8 through the first coupling 7 and the second coupling 9, and a connecting shaft 10 is connected to the front end of the second coupling 9, and the connecting shaft 10 is connected to the pulley 21, and the two end shafts of the torque sensor 8 are respectively connected to one end of the first coupling 7 and the second coupling 9.

[0021] In this embodiment, the base 1 and the fixing fixture 2, as well as the device inside the fixing fixture 2, constitute the main structure of the portable reduction gearbox radial force testing device involved in this application.

[0022] In this embodiment, the connecting shaft 10 and the output shaft 51 are coaxially connected, and the axial transmission of radial force is achieved through the coupling and the torque sensor 8, and the torque sensor 8 is set as a dynamic torque sensor 8, which is synchronously transmitted with the output shaft 51.

[0023] Specifically, two groups of guide grooves 11 and tooth grooves 12 are provided respectively, and the stop blocks 23 slide on the upper side of the tooth grooves 12 , and the stop bolts 231 connected inside the stop blocks 23 are inserted into the tooth grooves 12 .

[0024] As a preferred embodiment, by providing the tooth groove 12, the stop block 23 can be fixed by the stop bolt 231, and then the fixing tool 2 is fixed as a whole, thereby ensuring the stability and accuracy of the test.

[0025] Specifically, the fixed tooling 2 is configured as a U-shaped groove plate structure, and a slider is provided at the lower end of the groove plate, and the slider is slidably connected in the guide groove 11. The fixed tooling 2 is provided with two groups, and the connecting shaft 10 rotates through the front side plate body of the fixed tooling 2, and the pulley 21 and the belt 22 are located on the outside of the fixed tooling 2.

[0026] As a preferred embodiment, by setting a slider and a guide groove 11 to connect, the fixed tool 2 can be moved linearly under the drive of the bidirectional cylinder 3, thereby facilitating the adjustment of the tension of the belt 22.

[0027] Specifically, the radial force sensor 6 is configured as a cylindrical structure, and the radial force sensor 6 is rotatably sleeved on the outer wall of the reduction gearbox body 5 , and the lower end of the radial force sensor 6 is connected to a fixing seat 61 , and the fixing seat 61 is fixed to the base 1 by bolts.

[0028] As a preferred embodiment, by setting up a radial force sensor 6, it is convenient to concretize the detection data, and at the same time it can be compared with the data of the torque sensor 8, so as to obtain the magnitude relationship between the torque and radial force of the output shaft 51, and then facilitate the improvement of the design parameters of the reducer body 5.

[0029] When in use, first connect the reduction box to the motor, as well as the reduction box output shaft and the coupling, then start the two-way cylinder to push the two sets of fixed tooling away from each other to the outside, thereby tightening the belt, and then tighten the stop bolt in the tooth groove to fix it, and then start a set of motors on the inside of the fixed tooling, and the connecting shaft on the inside of the fixed tooling on the other side is not connected to the reduction box, so that the pulley on this side is used as a driven wheel, and then the output shaft of the reduction box is driven to rotate by the motor, and the torque of the output shaft is detected by the torque sensor at the same time, and the belt tension is appropriately adjusted according to the required size. At this time, the radial force on the output shaft can be tested by the radial force sensor, thereby realizing the detection of the radial force on the reduction box when it is in operation, and at the same time, the output shaft and the bearing assembly can be properly detected.

[0030] The portable reduction gearbox radial force testing device of the utility model can effectively solve the problems in the prior art that the radial torque detection tooling of the gearbox has incomplete detection and is inconvenient to perform radial force detection on the gearbox in operation. It is realized on the basis of the existing technology of the portable reduction gearbox radial force testing device, and is convenient for performing radial force detection on the output shaft of the reduction gearbox in operation, and at the same time, the relationship between the output shaft torque and the radial force is obtained, so that the detection is more comprehensive.

Claims

1. A portable reduction gearbox radial force testing device, comprising: A base (1) and a fixed tool (2), characterized in that: a guide groove (11) and a tooth groove (12) are provided at the upper end of the base (1), and a bidirectional cylinder (3) is installed between the tooth grooves (12), and a stop block (23) is connected to the outer ends of the piston rods on both sides of the bidirectional cylinder (3), the fixed tool (2) is slidably connected to the upper end of the base (1), and the inner side edge of the fixed tool (2) is connected to the stop block (23), and a pulley (21) is installed on the front side of the fixed tool (2), and the pulleys (21) are arranged between the pulleys (21). A belt (22) is connected, a motor (4) is installed inside the fixed tool (2), and a reduction box body (5) is connected to the front side of the motor (4), and a radial force sensor (6) is connected to the output shaft (51) end of the reduction box body (5), the output shaft (51) of the reduction box body (5) is connected to a torque sensor (8) through a first coupling (7) and a second coupling (9), and a connecting shaft (10) is connected to the front end of the second coupling (9), and the connecting shaft (10) is connected to the pulley (21).

2. A portable reduction gearbox radial force testing device according to claim 1, characterized in that: The guide groove (11) and the tooth groove (12) are each provided with two groups, and the stop block (23) slides on the upper side of the tooth groove (12), while the stop bolt (231) connected inside the stop block (23) is inserted into the tooth groove (12).

3. A portable reduction gearbox radial force testing device according to claim 1, characterized in that: The fixing tool (2) is configured as a U-shaped slot plate structure, and a sliding block is provided at the lower end of the slot plate, and the sliding block is slidably connected in the guide slot (11).

4. A portable reduction gearbox radial force testing device according to claim 1, characterized in that: The radial force sensor (6) is configured as a cylindrical structure, and the radial force sensor (6) is rotatably sleeved on the outer wall of the reduction gearbox body (5), and the lower end of the radial force sensor (6) is connected to a fixing seat (61), and the fixing seat (61) is fixed to the base (1) by bolts.

5. The portable reduction gearbox radial force testing device according to claim 1 is characterized in that: The shafts at both ends of the torque sensor (8) are respectively connected to one end of the first coupling (7) and one end of the second coupling (9), and the torque sensor (8) is configured as a dynamic torque sensor (8).

6. A portable reduction gearbox radial force testing device according to claim 1, characterized in that: The fixed tooling (2) is provided with two groups, and the connecting shaft (10) rotates and penetrates the front side plate of the fixed tooling (2), and the pulley (21) and the belt (22) are located outside the fixed tooling (2).

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