CN210014906U

CN210014906U - A pressurization test device for rotator

Info

Publication number: CN210014906U
Application number: CN201921102034.6U
Authority: CN
Inventors: 王泽军; 刘建; 余万荣; 金徐凯
Original assignee: Shenzhen Shengshi Elevator Co Ltd
Current assignee: Shenzhen Shengshi Elevator Co Ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-02-04
Anticipated expiration: 2029-07-15

Abstract

The utility model discloses a pressurization test device for a rotating body, which comprises a bracket component, wherein the bracket component is provided with a follow-up device matched with the rotating body to be detected, a pressurization device applying pressure to the follow-up device, and a pressure sensor arranged between the pressurization device and the follow-up device, the follow-up device comprises a shaft sleeve connected with the pressure sensor, a bearing component arranged outside the shaft sleeve, and an end cover and a bearing seat for axially limiting the bearing component, and the shaft sleeve is in sliding connection with the bracket component; during detection, the lower end face of the bearing seat is abutted against the upper end face of the rotating body, and the bearing seat rotates along with the rotating body. The utility model discloses a pressure test device for rotator, simple structure not only can adjust application of force size moreover, convenient operation.

Description

A pressurization test device for rotator

Technical Field

The utility model relates to a detection device technical field especially relates to a pressurization test device for rotator.

Background

In the prior art, sometimes a certain amount of load needs to be applied to a rotating body for pre-tightening or testing, and because a stressed object rotates ceaselessly, an external load or a counterweight adding mode is adopted when pressure is applied, and the mode has the following defects: on one hand, the increased load can not be adjusted at any time, and the loaded numerical value of the stressed object can not be accurately measured in real time; on the other hand, the device has a complex structure, increases the volume of the rotating body, is easy to cause danger, and brings great inconvenience to product manufacture and detection. Therefore, it is necessary to develop a pressure test apparatus which has a simple structure and can adjust the magnitude of the biasing force applied to the rotating body.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a pressure test device for rotator, which is not only simple in structure, but also can adjust the force application size, and is convenient in operation.

The utility model discloses a following technical scheme realizes:

a pressurization test device for a rotating body comprises a support assembly, wherein the support assembly is provided with a follow-up device matched with the rotating body to be detected, a pressurization device for applying pressure to the follow-up device and a pressure sensor arranged between the pressurization device and the follow-up device, the follow-up device comprises a shaft sleeve connected with the pressure sensor, a bearing assembly arranged outside the shaft sleeve, an end cover and a bearing seat for axially limiting the bearing assembly, and the shaft sleeve is in sliding connection with the support assembly; during detection, the lower end face of the bearing seat is abutted against the upper end face of the rotating body, and the bearing seat rotates along with the rotating body.

Furthermore, the bearing assembly comprises a first bearing and a second bearing which are arranged at the lower part of the shaft sleeve, the first bearing is arranged above the second bearing, the first bearing is a deep groove ball bearing, and the second bearing is a thrust ball bearing.

Furthermore, the pressurizing device comprises a pressure plate sleeve, a guide shaft in sliding connection with the pressure plate sleeve, an elastic body sleeved outside the guide shaft, and a driving device for driving the pressure plate sleeve to slide relative to the guide shaft, wherein the driving device is arranged on the support component, and the guide shaft is connected with the pressure sensor.

Furthermore, the driving device is a force application screw, the pressing plate sleeve is provided with a first threaded hole matched with the force application screw, and the support assembly is provided with a second threaded hole matched with the force application screw.

Furthermore, one end of the elastic body is connected with the pressure plate sleeve, and the other end of the elastic body is connected with the guide shaft.

Further, the elastic body is a compression spring.

Further, the bracket component comprises two fixed supports arranged in parallel at intervals, a pressing plate, a guide plate and a workbench are sequentially arranged between the two fixed supports from top to bottom, and the second threaded hole is formed in the pressing plate.

Furthermore, the guide plate is provided with a guide hole matched with the shaft sleeve, the shaft sleeve is in key connection with the guide plate, and the shaft sleeve can move along the axial direction of the guide hole relative to the guide hole.

Furthermore, the upper part of the shaft sleeve is provided with a limiting shaft shoulder part matched with the guide plate.

Further, the middle of the table is provided with a receiving hole for receiving the rotating body.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the technical means that the bracket assembly is provided with the follow-up device matched with the rotating body to be detected, the pressurizing device for applying pressure to the follow-up device and the pressure sensor arranged between the pressurizing device and the follow-up device are adopted, so that the pressurizing device is used for applying pressure to the pressure sensor and the follow-up device, and further the pressure is applied to the rotating body, and the pressure applied by the pressurizing device is controllable due to the arrangement of the pressure sensor; through the technical means of arranging the shaft sleeve connected with the pressure sensor, the bearing assembly arranged outside the shaft sleeve, and the end cover and the bearing seat for axially limiting the bearing assembly, and the shaft sleeve and the support assembly are in sliding connection, during detection, the lower end face of the bearing seat is abutted to the upper end face of the rotating body, and the bearing seat rotates along with the rotating body.

Drawings

Fig. 1 is a perspective view of a pressure test apparatus according to an embodiment of the present invention;

fig. 2 is an exploded perspective view of a pressure test apparatus according to an embodiment of the present invention;

fig. 3 is a front view of a pressure test apparatus according to an embodiment of the present invention;

fig. 4 is a left side view of the pressure test apparatus according to the embodiment of the present invention;

fig. 5 is a cross-sectional view of the AA section in fig. 4.

In the figure: 10. a bracket assembly; 11. a fixed support; 12. pressing a plate; 121. a second threaded hole; 13. a guide plate; 131. a guide hole; 14. a work table; 141. an accommodation hole; 20. a rotating body; 30. a follower device; 31. a shaft sleeve; 311. a limiting shaft shoulder; 32. a first bearing; 33. a second bearing; 34. an end cap; 35. a bearing seat; 36. locking the nut; 40. a pressurizing device; 41. a pressing plate sleeve; 411. a first threaded hole; 42. a guide shaft; 43. an elastomer; 44. a force application screw; 50. a pressure sensor.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

The pressurization test device for the rotating body shown in fig. 1-5 comprises a bracket assembly 10, wherein a follow-up device 30 matched with the rotating body 20 to be tested, a pressurization device 40 for applying pressure to the follow-up device 30, and a pressure sensor 50 arranged between the pressurization device 40 and the follow-up device 30 are arranged on the bracket assembly 10, the follow-up device 30 comprises a shaft sleeve 31 connected with the pressure sensor 50, a bearing assembly (not shown) arranged outside the shaft sleeve 31, and an end cover 34 and a bearing seat 35 for axially limiting the bearing assembly, and the shaft sleeve 31 is in sliding connection with the bracket assembly 10; during detection, the lower end surface of the bearing holder 35 abuts against the upper end surface of the rotating body 20, and the bearing holder 35 rotates together with the rotating body 20.

By the technical means that the follow-up device 30 matched with the rotating body 20 to be detected, the pressurizing device 40 for applying pressure to the follow-up device 30 and the pressure sensor 50 arranged between the pressurizing device 40 and the follow-up device 30 are arranged on the bracket assembly 10, the pressurizing device 40 is used for applying pressure to the pressure sensor 50 and the follow-up device 30 and further to the rotating body 20, and the pressure sensor 50 is arranged to enable the pressure applied by the pressurizing device 40 to be controllable; through the technical means of arranging the shaft sleeve 31 connected with the pressure sensor 50, the bearing assembly arranged outside the shaft sleeve 31, and the end cover 34 and the bearing seat 35 for axially limiting the bearing assembly, and the sliding connection between the shaft sleeve 31 and the bracket assembly 10, during detection, the lower end surface of the bearing seat 35 is abutted against the upper end surface of the rotating body 20, and the bearing seat 35 rotates along with the rotating body 20, so that the structure is simple, the operation is convenient, when pressure is applied to the rotating body 20, disassembly and assembly are not needed, and the test efficiency and the accuracy of test data are improved.

In a preferred embodiment, the bearing assembly includes a first bearing 32 and a second bearing 33 disposed at a lower portion of the sleeve 31, the first bearing 32 is disposed above the second bearing 33, the first bearing 32 is a deep groove ball bearing, and the second bearing 33 is a thrust ball bearing. The thrust ball bearing can bear the supporting force of pressure and force application object reaction, and the deep groove ball bearing limits the radial swing, so that the running stability of the follow-up device 30 is ensured.

In a preferred embodiment, the pressing device 40 includes a platen sleeve 41, a guide shaft 42 slidably connected to the platen sleeve 41, an elastic body 43 fitted around the guide shaft 42, and a driving device for driving the platen sleeve 41 to slide relative to the guide shaft 42, the driving device is provided on the carriage assembly 10, and the guide shaft 42 is connected to the pressure sensor 50. The platen sleeve 41 is driven by the driving device to slide relative to the guide shaft 42, and the elastic body 43 applies pressure to the guide shaft 42, so that the pressure is transmitted to the follower device 30 and the rotating body 20 to be detected through the pressure sensor 50. Preferably, the pressure sensor 50 has a display screen, and can display the pressure value in real time.

In a preferred embodiment, the driving device is a forcing screw 44, the pressure plate sleeve 41 is provided with a first threaded hole 411 matched with the forcing screw 44, and the bracket assembly 10 is provided with a second threaded hole 121 matched with the forcing screw 44. The force application screw 44 is fixedly connected with the pressing plate sleeve 41 through the first threaded hole 411, and moves downwards relative to the bracket assembly 10 through the second threaded hole 121 in a screwing way to apply pressure downwards, so that the structure is simple, and the operation is convenient.

In a preferred embodiment, one end of the elastic body 43 is connected to the pressure plate sleeve 41, and the other end of the elastic body 43 is connected to the guide shaft 42. Preferably, the elastic body 43 is a compression spring. The compression spring can bear axial pressure, when the driving device moves downwards, the driving pressure plate sleeve 41 moves downwards to compress the elastic body 43, the elastic body 43 drives the guide shaft 42 to move downwards, and the pressure is transmitted to the follow-up device 30 and the rotating body 20 through the pressure sensor 50.

In a preferred embodiment, the bracket assembly 10 includes two fixed supports 11 spaced in parallel, a pressing plate 12, a guide plate 13 and a worktable 14 are sequentially disposed between the two fixed supports 11 from top to bottom, and the second threaded hole 121 is disposed on the pressing plate 12. The fixed supports 11 serve to fix the entire test apparatus, and preferably, the pressure plate 12, the guide plate 13 and the table 14 are fixed to the two fixed supports 11 by screws, and a receiving hole 141 for receiving the rotating body 20 is provided in the middle of the table 14.

In a preferred embodiment, the guide plate 13 is provided with a guide hole 131 that fits into the boss 31, the boss 31 and the guide plate 13 are connected by a key (not shown), and the boss 31 is movable in the axial direction thereof relative to the guide hole 131. Preferably, the shaft sleeve 31 is provided with two keys in axial symmetry, and the keys limit the shaft sleeve 31 to prevent the shaft sleeve 31 from rotating.

In a preferred embodiment, the upper portion of the sleeve 31 is provided with a stop shoulder 311 that engages the guide plate 13. The limit shaft shoulder 311 serves as an axial limit. Preferably, the shaft sleeve 31 is further provided with a locking nut 36, the locking nut 36 is disposed below the guide plate 13, and the locking nut 36 plays a role in axially limiting the first bearing 32.

In a preferred embodiment, a flexible body (not shown), such as a rubber pad, for increasing the frictional force is provided on the lower end surface of the bearing housing 35. The lower end face of the bearing seat 35 and the upper end face of the rotating body 20 are driven by friction force, and the flexible body is arranged, so that the bearing seat 35 can be driven by enough friction force to rotate together when the bearing seat 35 contacts the rotating body 20. Of course, the pressure test apparatus of the present embodiment is not limited to detecting a rotating object, and may detect a stationary object by pressure. The rotating body 20 to be detected needs to have a plane to contact with the bearing seat 35 and bear load, and if the rotating body 20 does not have the plane, the rotating body can be externally connected with a tool to form the plane for testing.

The utility model discloses pressure test device's theory of operation: during the test, clockwise rotation application of force screw 44 with the spanner, make application of force screw 44 move down, make compression spring compression through pressure plate cover 41, produce decurrent pressure and will show through pressure sensor 50, owing to install thrust ball bearing, can bear the weight of the holding power of pressure and application of force object reaction, deep groove ball bearing is spacing to radial oscillation, follow-up part moving stability has been guaranteed, can apply accurate pressure at any time and test the rotation object, and is simple in structure, high durability and convenient use, and low cost, the accuracy of efficiency of the test and experimental data has been improved.

The utility model discloses pressure test device's operation step:

1. horizontally placing and fixing the pressurization test device, and enabling the rotating body 20 to be detected to penetrate through the accommodating hole 141 in the middle of the workbench 14 and keep a 1-2mm gap with the lower end face of the bearing seat 35;

2. the power supply of the pressure sensor 50 is switched on to display the pressure in real time;

3. turning the force application screw 44 with a wrench to move the force application screw 44 downward;

4. the pressure indication of the display screen of the pressure sensor 50 is observed, the pressure sensor 50 displays the pressure indication when the bearing seat 35 contacts the rotating body 20, and the force application screw 44 is adjusted according to the pressure indication of the pressure sensor to enable the pressure indication to reach the expected load, so that the test is completed.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a pressurization test device for rotator, includes bracket component, its characterized in that: the servo device is arranged on the support assembly and matched with a rotating body to be detected, the pressurizing device applies pressure to the servo device, and the pressure sensor is arranged between the pressurizing device and the servo device; during detection, the lower end face of the bearing seat is abutted against the upper end face of the rotating body, and the bearing seat rotates along with the rotating body.

2. The compression test apparatus of claim 1, wherein: the bearing assembly comprises a first bearing and a second bearing which are arranged at the lower part of the shaft sleeve, the first bearing is arranged above the second bearing, the first bearing is a deep groove ball bearing, and the second bearing is a thrust ball bearing.

3. The compression test apparatus of claim 1, wherein: the pressurizing device comprises a pressing plate sleeve, a guide shaft in sliding connection with the pressing plate sleeve, an elastic body sleeved outside the guide shaft and a driving device used for driving the pressing plate sleeve to slide relative to the guide shaft, the driving device is arranged on the support component, and the guide shaft is connected with the pressure sensor.

4. The compression test apparatus of claim 3, wherein: the driving device is a force application screw, the pressing plate sleeve is provided with a first threaded hole matched with the force application screw, and the support assembly is provided with a second threaded hole matched with the force application screw.

5. The compression test apparatus of claim 3, wherein: one end of the elastic body is connected with the pressure plate sleeve, and the other end of the elastic body is connected with the guide shaft.

6. The compression test apparatus of claim 3, wherein: the elastic body is a compression spring.

7. The compression test apparatus of claim 4, wherein: the bracket component comprises two fixed supports arranged in parallel at intervals, a pressing plate, a guide plate and a workbench are sequentially arranged between the fixed supports from top to bottom, and the second threaded hole is formed in the pressing plate.

8. The compression test apparatus of claim 7, wherein: the guide plate is provided with axle sleeve matched with guiding hole, the axle sleeve with pass through the key-type connection between the guide plate, the axle sleeve can be relative guiding hole is along its axial displacement.

9. The compression test apparatus of claim 8, wherein: and the upper part of the shaft sleeve is provided with a limiting shaft shoulder part matched with the guide plate.

10. The compression test apparatus of claim 7, wherein: and the middle part of the workbench is provided with a containing hole for containing the rotating body.