CN219608416U

CN219608416U - Bending moment load test platform for speed reducer

Info

Publication number: CN219608416U
Application number: CN202321325197.7U
Authority: CN
Inventors: 冯婷婷; 黄镇林; 唐耀文
Original assignee: Hangzhou Xinhangtian Technology Co ltd
Current assignee: Hangzhou Xinhangtian Technology Co ltd
Priority date: 2023-05-29
Filing date: 2023-05-29
Publication date: 2023-08-29
Anticipated expiration: 2033-05-29

Abstract

The utility model discloses a bending moment load testing platform for a speed reducer, which comprises a testing platform, wherein a substrate for supporting the speed reducer is arranged on the testing platform, and the substrate is used for fixedly clamping a speed reducer body through a clamp assembly; the test platform is also provided with a base, and the base is provided with an output shaft for fixing and clamping the speed reducer through a clamping piece; the substrate and the test platform are subjected to bending moment test by a radial acting force provided by a driving mechanism for an output shaft of the speed reducer, and the driving mechanism comprises an embedded chute arranged on the test platform; the utility model relates to the technical field of test platforms. When the first pressure sensor between the sliding block and the abutting plate detects pressure, the driving cylinder starts to stop working, so that the driving cylinder can stop working when the bending moment deformation occurs, and the testing error can be reduced in the testing process.

Description

Bending moment load test platform for speed reducer

Technical Field

The utility model relates to the technical field of test platforms, in particular to a bending moment load test platform for a speed reducer.

Background

The bending moment is one of the internal moments on the cross section of the force-receiving member. The colloquial expression bending moment is a moment. Stated another way, the moment required for bending, the lower portion is pulled positive (upper portion is compressed) and the upper portion is pulled negative (lower portion is compressed).

At present, in the existing test equipment, when the bending moment load test is carried out, the magnitude of acting force needs to be detected according to the bending moment deformation of the output shaft of the speed reducer, but in the test process, a worker usually stops the test according to the fact that the output shaft is greatly deformed, so that the critical value of the moment of the bending moment deformation of the output shaft cannot be detected, and a certain test error is caused to the test effect.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a bending moment load testing platform for a speed reducer, which solves the problem that in the testing process, a worker usually stops the test according to the fact that the output shaft is greatly deformed, so that the critical value of the moment caused by the bending moment deformation of the output shaft cannot be detected, and the testing effect has a certain testing error.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the bending moment load testing platform for the speed reducer comprises a testing platform, wherein a substrate for supporting the speed reducer is arranged on the testing platform, and the substrate is used for fixedly clamping a speed reducer body through a clamp assembly; the test platform is also provided with a base, and the base is provided with an output shaft for fixing and clamping the speed reducer through a clamping piece; the device comprises a base plate, a test platform, a driving mechanism, a driving cylinder, a sliding block, a first pressure sensor and a second pressure sensor, wherein the driving mechanism is used for carrying out bending moment test on an output shaft of the speed reducer through the radial acting force of the output shaft of the speed reducer, the driving mechanism comprises an embedded sliding groove arranged on the test platform, the bottom of the base plate is provided with the sliding block which linearly slides along the embedded sliding groove, a collision plate is arranged between one side, close to the base, of the sliding block and the inner wall of the embedded sliding groove, the first pressure sensor is arranged between the collision plate and the sliding block and used for detecting pressure between the collision plate and the sliding block, and the test platform is provided with the driving cylinder for driving the sliding block to linearly slide.

Preferably, the fixture assembly comprises a pair of fixing clamping plates arranged on two sides of the speed reducer body, threaded through holes are formed in the fixing clamping plates, the threaded through holes are connected through opposite-penetrating bolts, and one fixing clamping plate is fixed at the telescopic end of the driving cylinder.

Preferably, a heightening base plate for heightening the speed reducer body is arranged between the base plate and the speed reducer body, and a through hole for passing through a butt bolt is formed in the heightening base plate.

Preferably, the clamping piece comprises a right clamp and a left clamp which are arranged on two sides of the top of the base through the driving piece, and a clamping cavity for clamping the output shaft is formed between the right clamp and the left clamp.

Preferably, the driving piece comprises hydraulic cylinders arranged at the top of the base, two hydraulic cylinders are arranged, and the left clamp and the right clamp are fixed at the telescopic ends of the corresponding hydraulic cylinders one by one.

Preferably, a pressing plate is further arranged between the output shaft and the clamping piece, and a second pressure sensor is arranged between the pressing plate and the clamping piece.

Advantageous effects

The utility model provides a bending moment load testing platform for a speed reducer. Compared with the prior art, the method has the following beneficial effects:

(1) When the first pressure sensor between the sliding block and the abutting plate detects pressure, the driving cylinder starts to stop working, so that the driving cylinder can stop working when the bending moment deformation occurs, and the testing error can be reduced in the testing process.

(2) The bending moment load test platform for the speed reducer comprises a clamp assembly, a clamp plate, a threaded hole and a butt bolt, wherein the clamp assembly is used for fixing and clamping a speed reducer body, the two hydraulic cylinders are matched with a left clamp and a right clamp, an output shaft of the speed reducer can be fixedly clamped, a driving cylinder works, the driving cylinder can apply a radial acting force to the speed reducer body, and the output shaft is used for fixing and clamping the speed reducer body when the speed reducer body is subjected to a radial acting force, and a second pressure sensor between the clamp plate and the clamp piece detects the acting force applied to the output shaft, so that the bending moment load of the speed reducer is tested.

Drawings

FIG. 1 is a schematic structural view of a bending moment load testing platform for a speed reducer of the utility model;

FIG. 2 is a schematic view of a portion of a bending moment load testing platform for a speed reducer according to the present utility model;

FIG. 3 is a partial schematic view of the clamp assembly of the present utility model;

FIG. 4 is a schematic diagram of a first pressure sensor of the present utility model;

fig. 5 is a schematic diagram of a second pressure sensor of the present utility model.

In the figure: 1. a test platform; 2. a substrate; 3. a base; 4. a speed reducer body; 5. an output shaft; 6. a chute is embedded; 7. a sliding block; 8. a contact plate; 9. a first pressure sensor; 10. a driving cylinder; 11. perforating by threads; 12. a bolt is penetrated in a butt-joint way; 13. a heightening backing plate; 14. a left clamp; 15. a right clamp; 16. a clamping cavity; 17. a hydraulic cylinder; 18. a pressing plate; 19. a second pressure sensor; 20. and fixing the clamping plate.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides two technical schemes:

the embodiment shown in fig. 1-5: a bending moment load test platform for a speed reducer comprises a test platform 1, wherein a substrate 2 for supporting the speed reducer is arranged on the test platform 1, and the substrate 2 is used for fixedly clamping a speed reducer body 4 through a clamp assembly; the test platform 1 is also provided with a base 3, and the base 3 is provided with an output shaft 5 for fixing and clamping the speed reducer through a clamping piece; the device comprises a substrate 2 and a test platform 1, wherein a radial acting force is applied to an output shaft 5 of a speed reducer through a driving mechanism for carrying out bending moment test on the output shaft 5, the driving mechanism comprises an embedded sliding chute 6 arranged on the test platform 1, a sliding block 7 which slides along the embedded sliding chute 6 linearly is arranged at the bottom of the substrate 2, an abutting plate 8 is arranged between one side, close to a base 3, of the sliding block 7 and the inner wall of the embedded sliding chute 6, a first pressure sensor 9 for detecting the pressure between the abutting plate 8 and the sliding block 7 is arranged between the abutting plate 8 and the sliding block 7, and a driving cylinder 10 for driving the sliding block 7 to slide linearly is arranged on the test platform 1; through the mutual matching among the fixed clamping plate 20, the threaded through hole 11 and the opposite-penetrating bolt 12 in the clamp assembly, the speed reducer body 4 can be fixedly clamped, and through the mutual matching among the two hydraulic cylinders 17, the left clamp 14 and the right clamp 15, the output shaft 5 of the speed reducer can be fixedly clamped, then the driving cylinder 10 works, so that the driving cylinder 10 can apply a radial acting force to the speed reducer body 4, and through the fixed clamping of the output shaft 5, when the speed reducer body 4 is subjected to a radial acting force, the second pressure sensor 19 between the pressing plate 18 and the clamping piece detects the acting force applied to the output shaft 5, so that the bending moment load of the speed reducer is tested; when the driving cylinder 10 starts working and when the output shaft 5 starts bending moment deformation, the driving cylinder 10 starts to stop working when the pressure is detected by the first pressure sensor 9 between the sliding block and the abutting plate 8, so that the driving cylinder 10 can stop working when the bending moment deformation just occurs, and the testing error can be reduced in the testing process.

The fixture assembly comprises a pair of fixing clamping plates 20 arranged on two sides of the speed reducer body 4, threaded through holes 11 are formed in the fixing clamping plates 20, the threaded through holes 11 are connected through opposite-penetrating bolts 12, and one fixing clamping plate 20 is fixed at the telescopic end of the driving cylinder 10.

Wherein, a heightening base plate 13 for heightening the speed reducer body 4 is arranged between the base plate 2 and the speed reducer body 4, and a perforation for passing through the opposite-penetrating bolt 12 is arranged on the heightening base plate 13.

The clamping piece comprises a right clamp 15 and a left clamp 14 which are arranged on two sides of the top of the base 3 through driving pieces, and a clamping cavity 16 for clamping the output shaft 5 is formed between the right clamp 15 and the left clamp 14.

The driving piece comprises hydraulic cylinders 17 arranged at the top of the base 3, two hydraulic cylinders 17 are arranged, and the left clamp 14 and the right clamp 15 are fixed at the telescopic ends of the corresponding hydraulic cylinders 17 one by one.

Wherein, still be equipped with clamp plate 18 between output shaft 5 and the holder, be equipped with second pressure sensor 19 between clamp plate 18 and the holder.

The first pressure sensor 9 and the second pressure sensor 19 are both of the prior art, and can be purchased in the market.

Meanwhile, the contents which are not described in detail in the specification belong to the prior art known to the person skilled in the art, and model parameters of each electric appliance are not particularly limited and conventional equipment can be used.

When the speed reducer is used, firstly, the speed reducer body 4 can be fixedly clamped through the mutual matching between the fixing clamping plate 20, the threaded through hole 11 and the opposite through bolt 12 in the clamp assembly, and the output shaft 5 of the speed reducer can be fixedly clamped through the mutual matching between the two hydraulic cylinders 17 and the left clamp 14 and the right clamp 15, then the driving cylinder 10 works, so that the driving cylinder 10 can apply a radial acting force to the speed reducer body 4, and the output shaft 5 is fixedly clamped, so that when the speed reducer body 4 is subjected to a radial acting force, the second pressure sensor 19 between the clamping plate 18 and the clamping piece detects the acting force applied to the output shaft 5, and further the bending moment load of the speed reducer is tested; when the driving cylinder 10 starts working and when the output shaft 5 starts bending moment deformation, the driving cylinder 10 starts to stop working when the pressure is detected by the first pressure sensor 9 between the sliding block and the abutting plate 8, so that the driving cylinder 10 can stop working when the bending moment deformation just occurs, and the testing error can be reduced in the testing process.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Moment of flexure load test platform that speed reducer was used, including test platform (1), its characterized in that: a substrate (2) for supporting the speed reducer is arranged on the test platform (1), and the substrate (2) is used for fixedly clamping a speed reducer body (4) through a clamp assembly; a base (3) is further arranged on the test platform (1), and an output shaft (5) for fixing and clamping the speed reducer is arranged on the base (3) through a clamping piece; the device is characterized in that a radial acting force is applied to an output shaft (5) of the speed reducer between the substrate (2) and the test platform (1) through a driving mechanism for carrying out bending moment test on the output shaft (5), the driving mechanism comprises an embedded sliding groove (6) arranged on the test platform (1), a sliding block (7) which linearly slides along the embedded sliding groove (6) is arranged at the bottom of the substrate (2), an abutting plate (8) is arranged between one side, close to the base (3), of the sliding block (7) and the inner wall of the embedded sliding groove (6), a first pressure sensor (9) for detecting pressure between the abutting plate (8) and the sliding block (7) is arranged between the abutting plate (8) and the sliding block (7), and a driving cylinder (10) for driving the sliding block (7) to linearly slide is arranged on the test platform (1).

2. The bending moment load testing platform for a speed reducer according to claim 1, wherein: the fixture assembly comprises a pair of fixing clamping plates (20) arranged on two sides of a speed reducer body (4), threaded through holes (11) are formed in the fixing clamping plates (20), the threaded through holes (11) are connected through opposite penetrating bolts (12), and one fixing clamping plate (20) is fixed at the telescopic end of a driving cylinder (10).

3. The bending moment load testing platform for a speed reducer according to claim 2, wherein: an heightening base plate (13) for heightening the speed reducer body (4) is arranged between the base plate (2) and the speed reducer body (4), and a through hole for passing through a through bolt (12) is formed in the heightening base plate (13).

4. The bending moment load testing platform for a speed reducer according to claim 1, wherein: the clamping piece comprises a right clamp (15) and a left clamp (14) which are arranged on two sides of the top of the base (3) through driving pieces, and a clamping cavity (16) for clamping the output shaft (5) is formed between the right clamp (15) and the left clamp (14).

5. The bending moment load testing platform for a speed reducer according to claim 4, wherein: the driving piece comprises hydraulic cylinders (17) arranged at the top of the base (3), two hydraulic cylinders (17) are arranged, and the left clamp (14) and the right clamp (15) are fixed at the telescopic ends of the corresponding hydraulic cylinders (17) one by one.

6. The bending moment load testing platform for a speed reducer according to claim 4, wherein: a pressing plate (18) is further arranged between the output shaft (5) and the clamping piece, and a second pressure sensor (19) is arranged between the pressing plate (18) and the clamping piece.