Speed reducer back clearance measuring device
By designing an arc block and shaft mechanism that automatically fixes the input end of the reducer, combined with the motor and clamping components, the problem of increasing workforce strength caused by manual adjustment in the prior art is solved, and the efficiency of the reducer backlash detection is improved.
Patent Information
- Application Number
- CN202421001469.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-10
AI Technical Summary
When placing the reducer backlash measurement device of the existing reducer, it is necessary to manually adjust the position of the input end and the fixed components, which increases the work force of the staff and affects the detection efficiency.
A device including a measuring table and a fixing assembly is designed to automatically fix the reducer input through an arc-shaped block and a rotating shaft mechanism, combining the motor and clamping assembly to achieve automatic clamping and rotation, reducing the need for manual adjustment.
The automatic fixation of the input end of the reducer is realized, which reduces the working intensity of staff and improves the efficiency of backlash detection.
Smart Images
Figure CN222188284U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of speed reducer detection, and more specifically, to a speed reducer backlash measuring device. Background Art
[0002] Backlash, also called return clearance, is an important detection parameter of reducers, especially planetary gear reducers. Therefore, a backlash measuring device is required. The detection method of reducer backlash is: fix the input end of the reducer, and then rotate its output end clockwise and counterclockwise to make the output end produce a torque of ±2% of the rated torque. Detect a small angular displacement generated at the input end of the reducer. This angular displacement is the backlash.
[0003] As retrieved from the existing relevant patent: CN213932452U, a planetary gear reducer backlash rapid measurement device is disclosed. The prior art improves the detection efficiency of the reducer backlash through a fixed component including a fixed frame fixed on a fixed box, a first electric cylinder fixed on the top of the fixed frame, a clamping block fixed on the end of the piston rod of the first electric cylinder, and a lap frame fixed on the fixed box and located on the lower side of the clamping block for lap-joining the reducer input end.
[0004] However, the inventors have discovered that the prior art has the following problems: when placing the reducer on the measuring table, the input end of the reducer is blocked by the fixed frame and cannot be directly placed on the lap frame. Therefore, after the reducer is placed on the measuring table, it is necessary to move the reducer so that the input end of the reducer is placed on the lap frame, and then start the first electric cylinder and push the clamping block to clamp the input end. This method increases the workload of the staff when measuring the backlash of the reducer, affecting the efficiency of detecting the backlash of the reducer. Utility Model Content
[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a reducer backlash measuring device which does not require manual adjustment of the position of the reducer input end and the fixed component, reduces the workload of personnel when measuring the reducer backlash, and ensures the efficiency of reducer backlash detection.
[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0007] A reducer backlash measuring device comprises a measuring platform, wherein a fixing assembly and a motor are provided on the upper side of the measuring platform, the fixing assembly comprises a mounting bottom shell, the mounting bottom shell is fixedly mounted on the upper surface of the measuring platform, a compression rod is provided on the mounting bottom shell, a first arc block is fixedly mounted on the upper end of the compression rod, a second arc block is provided on the first arc block, the first arc block and the second arc block are mirror-imaged, two connecting plates are fixedly mounted on the upper surface of one side of the first arc block, a rotating shaft is rotatably connected between the two connecting plates, one side of the second arc block is fixedly sleeved on the rotating shaft, a torsion spring is provided between the rotating shaft and the connecting plate, a connecting shell is fixedly mounted on the surface of the side of the connecting plate facing away from the second arc block, one end of the rotating shaft rotatably penetrates into the connecting shell, one end of the rotating shaft located in the connecting shell is fixedly sleeved with a gear, a fixing plate is fixedly mounted on the upper surface of the measuring platform, through grooves communicating with the interior of the connecting shell are provided on the upper and lower side surfaces of the connecting shell, the connecting shell is slidably sleeved on the fixing plate through the through groove, and a plurality of teeth are fixedly mounted on the side of the fixing plate facing the gear.
[0008] The utility model is further configured as follows: a placement slot is provided on the measuring platform, the motor and the fixing assembly are respectively arranged on two opposite sides of the placement slot, and a clamping assembly is provided on the measuring platform.
[0009] The utility model is further configured as follows: a frosted layer is provided on the inner curved surfaces of the first curved block and the second curved block.
[0010] The utility model is further configured as follows: a compression chamber is opened in the installation bottom shell, the lower end of the compression rod slides through the compression chamber, the lower end of the compression rod is fixedly connected with a compression plate, and the compression plate slides in the compression chamber.
[0011] The utility model is further configured as follows: a tension spring is fixedly connected between the compression plate and the top wall of the compression chamber, and the tension spring is movably sleeved on the outer surface of the compression rod.
[0012] The utility model is further configured as follows: a plurality of counting grooves are opened on the output shaft of the motor, the plurality of counting grooves are evenly distributed around the axis of the motor output shaft, an infrared induction counter for detecting the counting grooves is provided on the measuring table, and an electric clamp is provided at the other end of the motor output shaft.
[0013] The utility model is further configured as follows: a mounting plate is fixedly mounted on the bottom of the motor, two guide rails are fixedly mounted on the upper surface of the measuring platform, two guide rail joints are inlaid on the lower surface of the mounting plate, and the mounting plate is slidably connected on the guide rails through the guide rail joints.
[0014] The utility model is further configured as follows: a cylinder is fixedly installed on the side of the measuring platform, and one end of the cylinder telescopic rod is fixedly connected to the side of the mounting plate.
[0015] The utility model has the advantages that after the reducer is placed on the measuring table, the input end of the reducer can be directly fixed, and there is no need to manually adjust the position of the input end of the reducer and the fixed component, which reduces the workload of the staff when measuring the backlash of the reducer and ensures the efficiency of the backlash detection of the reducer. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic diagram of the structure of a reducer backlash measuring device of the utility model;
[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0018] Figure 3 It is a cross-sectional schematic diagram of the connection housing of the utility model;
[0019] Figure 4 It is a cross-sectional schematic diagram of the installation bottom shell of the utility model.
[0020] In the figure: 1. Measuring table; 2. Placement slot; 3. Fixing assembly; 31. Mounting bottom shell; 32. Compression rod; 33. First arc block; 34. Connecting plate; 35. Second arc block; 36. Rotating shaft; 37. Connecting shell; 38. Fixing plate; 39. Gear; 310. Tooth; 311. Through groove; 312. Frosted layer; 313. Compression chamber; 314. Compression plate; 315. Tension spring; 4. Clamping assembly; 5. Mounting plate; 6. Guide rail; 7. Guide rail joint; 8. Motor; 9. Counting wire slot; 10. Electric clamp; 11. Cylinder. DETAILED DESCRIPTION
[0021] See also Figure 1-4 , the utility model provides the following technical solutions:
[0022] Specifically, it refers to a reducer backlash measuring device, including a measuring table 1, a placement slot 2 is opened on the measuring table 1, so the base of the reducer can be placed in the placement slot 2, a fixing component 3 and a motor 8 are provided on the upper side of the measuring table 1, and the motor 8 and the fixing component 3 are respectively arranged on opposite sides of the placement slot 2, and a clamping component 4 is provided on the measuring table 1. The clamping component 4 is a public technology in the existing patent: CN213932452U, and no further elaboration is made here. The four corners of the reducer placed on the measuring table 1 can be clamped and fixed by the clamping component 4.
[0023] Further, the fixing assembly 3 includes a mounting bottom shell 31, which is fixedly mounted on the upper surface of the measuring platform 1, and a compression rod 32 is provided on the mounting bottom shell 31, and a first arc block 33 is fixedly mounted on the upper end of the compression rod 32, and a second arc block 35 is provided on the first arc block 33, and the first arc block 33 and the second arc block 35 are arranged in a mirror image, and two connecting plates 34 are fixedly mounted on the upper surface of one side of the first arc block 33, and a rotating shaft 36 is rotatably connected between the two connecting plates 34, and one side of the second arc block 35 is fixedly sleeved on the rotating shaft 36, and a torsion spring is provided between the rotating shaft 36 and the connecting plate 34, so that the second arc block 35 is vertical in the initial state under the action of the torsion spring, and the first arc block 33 and the second arc block 35 are 90 degrees apart;
[0024] When in use, the second arc block 35 uses the rotating shaft 36 as a rotation point, so that the second arc block 35 can cover the first arc block 33, so that the first arc block 33 and the second arc block 35 can fix the input end of the reducer therebetween.
[0025] Further, a connecting shell 37 is fixedly installed on the surface of the connecting plate 34 on one side facing away from the second arc-shaped block 35, one end of the rotating shaft 36 rotates and penetrates into the connecting shell 37, and a gear 39 is fixedly sleeved on one end of the rotating shaft 36 located in the connecting shell 37, and a fixing plate 38 is fixedly installed on the upper surface of the measuring platform 1, and through grooves 311 communicating with the interior of the connecting shell 37 are provided on both the upper and lower surfaces of the connecting shell 37, and the connecting shell 37 is slidably sleeved on the fixing plate 38 through the through grooves 311, and a plurality of teeth 310 are fixedly installed on the side of the fixing plate 38 facing the gear 39;
[0026] When the reducer is placed on the measuring table 1, its input end will be placed on the first arc block 33. At this time, the input end of the reducer will apply pressure to the first arc block 33, causing the first arc block 33 to move downward, and the second arc block 35 will descend with the first arc block 33. At the same time, the fixing plate 38 will slide in the through groove 311. When the reducer is almost completely placed in the placement groove 2, the teeth 310 on the fixing plate 38 will contact the gear 39 and drive the gear 39 to rotate counterclockwise, so that the shaft 36 drives the second arc block 35 to rotate counterclockwise. When the reducer is completely placed in the placement groove 2, the second arc block 35 will rotate ninety degrees counterclockwise and close with the first arc block 33, thereby completing the fixation of the reducer input end. In this way, when the reducer is placed on the measuring table 1, the reducer input end can be directly fixed, and there is no need to manually adjust the position of the reducer input end and the fixing component, which reduces the workload of the staff when measuring the reducer backlash and ensures the efficiency of the reducer backlash detection.
[0027] Furthermore, a frosted layer 312 is provided on the inner arc surface of the first arc block 33 and the second arc block 35, which increases the friction coefficient of the contact surface between the first arc block 33 and the second arc block 35 and the reducer input end, thereby improving the fixing effect on the reducer input end.
[0028] Furthermore, a compression chamber 313 is opened in the installation bottom shell 31, and the lower end of the compression rod 32 slides into the compression chamber 313. The lower end of the compression rod 32 is fixedly connected with a compression plate 314, and the compression plate 314 slides in the compression chamber 313. A tension spring 315 is fixedly connected between the compression plate 314 and the top wall of the compression chamber 313. The tension spring 315 is movably sleeved on the outer surface of the compression rod 32. When the first arc block 33 moves downward, the compression rod 32 synchronously drives the compression plate 314 to slide in the compression chamber 313, and the tension spring 315 is stressed and stretched.
[0029] Furthermore, a plurality of counting grooves 9 are provided on the output shaft of the motor 8, and the plurality of counting grooves 9 are evenly distributed around the axis of the output shaft of the motor 8. An infrared sensing counter for detecting the counting grooves 9 is provided on the measuring table 1. An electric clamp 10 is provided at the other end of the output shaft of the motor 8. The electric clamp 10 is also the disclosed technology in the existing patent: CN213932452U. Therefore, the output end of the reducer can be clamped by the electric clamp 10, so that when the motor 8 is started, the output end of the reducer can be driven to rotate.
[0030] Furthermore, a mounting plate 5 is fixedly installed on the bottom of the motor 8, two guide rails 6 are fixedly installed on the upper surface of the measuring table 1, and two guide rail joints 7 are inlaid on the lower surface of the mounting plate 5. The mounting plate 5 is slidably connected on the guide rails 6 through the guide rail joints 7. A cylinder 11 is fixedly installed on the side of the measuring table 1, and one end of the telescopic rod of the cylinder 11 is fixedly connected to the side of the mounting plate 5. Therefore, when the reducer is placed on the measuring table 1, the telescopic rod of the cylinder 11 pushes the mounting plate 5 to move to one side of the reducer, so that the electric clamp 10 can clamp the output shaft of the reducer.
[0031] The working principle of the reducer backlash measuring device provided by the utility model is as follows: when the reducer is placed on the measuring table 1, its input end will be placed on the first arc block 33. At this time, the input end of the reducer will apply pressure to the first arc block 33, so that the first arc block 33 moves downward, and the second arc block 35 descends with the first arc block 33. At the same time, the fixed plate 38 slides in the through groove 311. When the reducer is almost completely placed in the placement groove 2, the teeth 310 on the fixed plate 38 contact the gear 39 and drive the gear 39 to rotate counterclockwise, so that the rotating shaft 36 drives the second arc block 35 to rotate counterclockwise. When the reducer is completely placed in the placement groove 2, the second arc block 35 rotates ninety degrees counterclockwise and closes with the first arc block 33, thereby completing the fixation of the reducer input end.
Claims
1. A speed reducer backlash measuring device, comprising a measuring table (1), characterized in that: A fixing assembly (3) and a motor (8) are provided on the upper side of the measuring platform (1); The fixing assembly (3) comprises a mounting bottom shell (31), the mounting bottom shell (31) is fixedly mounted on the upper surface of the measuring platform (1), a compression rod (32) is provided on the mounting bottom shell (31), a first arc block (33) is fixedly mounted on the upper end of the compression rod (32), a second arc block (35) is provided on the first arc block (33), the first arc block (33) and the second arc block (35) are arranged in a mirror image, two connecting plates (34) are fixedly mounted on the upper surface of one side of the first arc block (33), a rotating shaft (36) is rotatably connected between the two connecting plates (34), one side of the second arc block (35) is fixedly sleeved on the rotating shaft (36), and a torsion spring is provided between the rotating shaft (36) and the connecting plate (34); A connecting shell (37) is fixedly mounted on a surface of the connecting plate (34) on one side facing away from the second arc-shaped block (35); one end of the rotating shaft (36) rotates and penetrates into the connecting shell (37); one end of the rotating shaft (36) located in the connecting shell (37) is fixedly sleeved with a gear (39); a fixing plate (38) is fixedly mounted on the upper surface of the measuring platform (1); both upper and lower surfaces of the connecting shell (37) are provided with through grooves (311) communicating with the interior thereof; the connecting shell (37) is slidably sleeved on the fixing plate (38) through the through grooves (311); and a plurality of teeth (310) are fixedly mounted on a side of the fixing plate (38) facing the gear (39).
2. A reducer backlash measuring device according to claim 1, characterized in that: The measuring platform (1) is provided with a placement groove (2), the motor (8) and the fixing component (3) are respectively arranged on two opposite sides of the placement groove (2), and the measuring platform (1) is provided with a clamping component (4).
3. A reducer backlash measuring device according to claim 1, characterized in that: A frosted layer (312) is provided on the inner curved surfaces of the first curved block (33) and the second curved block (35).
4. A reducer backlash measuring device according to claim 1, characterized in that: A compression chamber (313) is provided in the mounting bottom shell (31), and the lower end of the compression rod (32) slides through the compression chamber (313). The lower end of the compression rod (32) is fixedly connected to a compression plate (314), and the compression plate (314) slides in the compression chamber (313).
5. A reducer backlash measuring device according to claim 4, characterized in that: A tension spring (315) is fixedly connected between the compression plate (314) and the top wall of the compression chamber (313), and the tension spring (315) is movably sleeved on the outer surface of the compression rod (32).
6. A reducer backlash measuring device according to claim 5, characterized in that: The output shaft of the motor (8) is provided with a plurality of counting grooves (9), which are evenly distributed around the axis of the output shaft of the motor (8); an infrared induction counter for detecting the counting grooves (9) is provided on the measuring platform (1); and an electric clamp (10) is provided at the other end of the output shaft of the motor (8).
7. A reducer backlash measuring device according to claim 6, characterized in that: A mounting plate (5) is fixedly mounted on the bottom of the motor (8), two guide rails (6) are fixedly mounted on the upper surface of the measuring platform (1), two guide rail joints (7) are inlaid on the lower surface of the mounting plate (5), and the mounting plate (5) is slidably connected to the guide rails (6) via the guide rail joints (7).
8. A reducer backlash measuring device according to claim 7, characterized in that: A cylinder (11) is fixedly mounted on the side of the measuring platform (1), and one end of a telescopic rod of the cylinder (11) is fixedly connected to the side of the mounting plate (5).