CN110887661A

CN110887661A - Gear detection equipment

Info

Publication number: CN110887661A
Application number: CN201811008569.7A
Authority: CN
Inventors: 王亚平; 余海军; 焦金明
Original assignee: CRRC Datong Co Ltd
Current assignee: CRRC Datong Co Ltd
Priority date: 2018-08-31
Filing date: 2018-08-31
Publication date: 2020-03-17
Also published as: WO2020042331A1

Abstract

The invention discloses gear detection equipment which comprises a base, a gear retainer and a gear bearing shaft, wherein the gear retainer is rotatably arranged on the base; the gear bearing shaft is used for supporting a gear, the gear bearing shaft is arranged on the gear retainer, the central axis of the gear bearing shaft and the central axis of the rotating shaft of the gear retainer are arranged in an angle mode, the gear detection equipment can simplify working steps, and working efficiency is improved.

Description

Gear detection equipment

Technical Field

The invention relates to the technical field of gear detection, in particular to gear detection equipment.

Background

Along with the continuous development of railway industry in China, the operation safety of locomotives is concerned by more and more people. In order to ensure the operation safety of the locomotive, some important parts on the locomotive are required to be subjected to nondestructive testing, the safety of the gear box gear used as a transmission device between a motor and a wheel shaft of the locomotive is self-evident, no matter a newly manufactured locomotive or a maintenance locomotive is required to be subjected to nondestructive testing on the whole surface of the gear, and the surfaces of a transmission gear and a driven gear of the locomotive are required to be subjected to magnetic powder testing in the whole area.

Because the magnetic powder inspection of locomotive transmission gears needs to inspect a plurality of positions of gear teeth, a web plate and a hub hole, the traditional inspection method is generally as follows: firstly, the gear is flatly placed on the ground, the web plate on one side of the gear is detected, then the web plate on the other side of the gear is turned over to detect, finally the hanging strip penetrates through the central hole of the gear, and the gear is lifted and then rotates to detect the gear teeth. Above-mentioned testing process need treat that the detection gear overturns many times, and the process is loaded down with trivial details, wastes time and energy to be unfavorable for batch production, the teeth of a cogwheel position detection quality is not good.

Therefore, in view of the above-mentioned drawbacks, there is a need in the art to provide a gear inspection apparatus.

The above information disclosed in this background section is only for enhancement of understanding of the background of the invention.

Disclosure of Invention

The present invention is directed to overcoming at least one of the above-mentioned disadvantages of the prior art, and providing a gear inspecting apparatus to improve the efficiency of gear inspection and reduce the labor cost.

In order to achieve the purpose, the invention adopts the following technical scheme:

according to an aspect of the present invention, there is provided a gear detecting apparatus including a base, a gear holder rotatably provided on the base, and a gear carrying shaft; the gear bearing shaft is used for supporting a gear, the gear bearing shaft is arranged on the gear retainer, and the central axis of the gear bearing shaft and the central axis of the rotating shaft of the gear retainer are arranged in an angle.

According to an embodiment of the invention, the gear carrier shaft has a centre axis perpendicular to a centre axis of the rotational shaft of the gear holder.

According to an embodiment of the invention, the outer circumferential surface of the gear carrying shaft is provided with a flexible structure.

According to an embodiment of the invention, the flexible structure is made of a nylon material.

According to an embodiment of the invention, the gear cage is arranged on the base by means of a ball bearing seat.

According to an embodiment of the present invention, the gear detecting apparatus further includes a holder driving device connected to a rotating shaft of the gear holder to drive the gear holder to rotate.

According to an embodiment of the present invention, the holder driving device is a worm gear structure, and the worm gear is disposed on the rotating shaft to drive the rotating shaft to rotate.

According to an embodiment of the invention, the sum of the clockwise rotation angle and the counterclockwise rotation angle of the gear cage is 90 °.

According to an embodiment of the invention, the clockwise rotation angle and the counterclockwise rotation angle of the gear cage are 45 ° respectively.

According to an embodiment of the invention, a side guard is provided on a side of the gear cage that can face the gear for supporting the side of the gear.

According to an embodiment of the invention, the side guard is a roller structure rotatable about its axis, the central axis of the roller structure extending in a radial direction of the gear carrying shaft.

According to an embodiment of the present invention, the side protection device is a plurality of side protection devices, and the plurality of side protection devices are uniformly distributed on the same circumference.

According to an embodiment of the present invention, the outer peripheral surface of the roller structure is provided with a flexible structure to prevent scratching the side surface of the gear.

According to the technical scheme, the gear detection equipment has the advantages and positive effects that: the gear detection equipment can simplify the working steps and improve the working efficiency.

Drawings

Various objects, features and advantages of the present invention will become more apparent from the following detailed description of preferred embodiments of the invention, when considered in conjunction with the accompanying drawings. The drawings are merely exemplary of the invention and are not necessarily drawn to scale. In the drawings, like reference characters designate the same or similar parts throughout the different views. Wherein:

fig. 1 is a block diagram illustrating a gear detecting apparatus mounted according to an exemplary embodiment.

Fig. 2 is a front view of the gear cage of fig. 1 after deflection.

Fig. 3 is a side view of fig. 2.

Fig. 4 is a front view of the cage of fig. 1 after another direction of deflection.

Fig. 5 is a side view of fig. 4.

FIG. 6 is a schematic view of the disengagement of the gear carrier shaft from the gear cage.

Fig. 7 is a block diagram of the gear carrier shaft of fig. 1.

Fig. 8 is a layout view of a single-sided roller structure on the gear cage of fig. 1.

Wherein the reference numerals are as follows:

100. a base; 101. A ball bearing seat;

200. a gear holder; 201. A rotating shaft;

202. a bearing seat; 203. A roller structure;

204. a worm and gear structure; 205. A hand wheel;

300. a gear carrier shaft; 301. A flexible structure;

400. a gear.

Detailed Description

Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.

Referring to fig. 1 to 6, according to an aspect of the present invention, there is provided a gear detecting apparatus including a base 100, a gear holder 200, and a gear carrying shaft 300, wherein the gear holder 200 is rotatably provided on the base 100. It is within the scope of the present invention that the gear shaft 300 may be rotatably disposed on the gear holder 200 or may be fixed to the gear holder 200 according to an embodiment of the present invention. In order to better protect the hub center hole and prevent scratching the hub center hole, an embodiment of the present invention provides the gear carrier shaft 300 to be rotatable.

According to an embodiment of the present invention, a bearing seat may be provided on the base 100 to match with the rotating shaft 201 of the gear holder 200. According to an embodiment of the present invention, the bearing seat on the base 100 may be a ball bearing seat 101, and the ball bearing seat 101 has an axis adjusting function to adjust the axis of the rotating shaft 201. The gear detection equipment provided by the invention can realize all-round inspection of the gear only by once hoisting, avoids the operation step of turning the gear back and forth, simplifies the process, reduces the labor requirement, improves the working efficiency and also improves the accuracy of the gear detection result.

With continued reference to fig. 1-6, in accordance with an embodiment of the present invention, wherein the gear cage 200 may include a first cage and a second cage that are spaced and oppositely disposed, the gear 400 may be disposed between the first cage and the second cage. According to an embodiment of the invention, the first cage and the second cage may be connected by a connecting member. According to an embodiment of the present invention, the rotating shaft 201 may be disposed on the connecting member, but not limited thereto. According to an embodiment of the present invention, it is within the scope of the present invention that the first holder or the second holder may be a frame structure or a panel structure. According to an embodiment of the present invention, the space between the first and second cages may be greater than or equal to the axial dimension of the gear 400.

Referring to fig. 1 to 6, according to an embodiment of the present invention, the gear carrier shaft 300 may be used to support the gear 400, and the gear carrier shaft 300 is disposed on the gear holder 200 to support the gear 400 on the gear holder 200, so that the gear 400 can swing along with the swing of the gear holder 200 to change the detection surface of the gear 400.

According to an embodiment of the present invention, the bearing housing 202 for supporting the gear carrier shaft 300 may be disposed on the first and second holders, for example, but not limited to, may be disposed on top of the first and second holders. According to an embodiment of the present invention, the two bearing seats 202 disposed on the first holder and the second holder are symmetrical with respect to a central axis of the rotating shaft 201 of the gear holder 200, but not limited thereto.

Specifically, before being mounted on the bearing seat 202, the gear bearing shaft 300 may be sleeved in the hub center hole of the gear; then moving the gear 400 and the gear carrying shaft 300 such that the gear 400 is disposed between the first holder and the second holder until the gear carrying shaft 300 is disposed on the bearing housing 202; finally, the top seat of the bearing seat 202 is fixed on the base, and the fixing of the bearing seat 202 is completed.

In order to prevent friction at the contact point of the gear carrier shaft 300 and the gear 400, according to an embodiment of the present invention, a flexible structure 301 may be provided on the outer circumferential surface of the gear carrier shaft 300. According to an embodiment of the present invention, the flexible structure 301 may be made of a nylon material, but of course, if necessary, the flexible structure 301 may also be made of a plastic material or a rubber material, which is within the protection scope of the present invention.

More specifically, as shown in fig. 6, the gear 400 may be lifted by a lifting mechanism and moved to above the gear detecting apparatus; then, the gear bearing shaft 300 is sleeved in the hub central hole of the gear 400; the hoisting mechanism may move the gear 400 downward (as indicated by the arrow in fig. 6) until the gear 400 enters the gap between the first holder and the second holder; the position of the gear carrying shaft 300 is adjusted so that it is fixed in the bearing housing 202. According to an embodiment of the present invention, wherein the hoisting mechanism can be a crown block, a crane, etc. as required, it is within the scope of the present invention.

Referring to fig. 1 to 7, according to an embodiment of the present invention, a central axis of the gear carrier shaft 300 may be disposed at an angle to a central axis of the rotation shaft 201 of the gear holder 200. More specifically, according to an embodiment of the present invention, a central axis of the gear carrier shaft 300 may be perpendicular to a central axis of the rotation shaft 201 of the gear holder 200.

With continued reference to fig. 1-6, according to an embodiment of the present invention, the gear detecting apparatus may further include a holder driving device, which may be connected to the rotating shaft 201 of the gear holder 200 to drive the gear holder 200 to rotate. Specifically, according to an embodiment of the present invention, the holder driving device may be a worm gear structure 204, and a worm gear may be disposed on the rotating shaft 201 to drive the rotating shaft 201 to rotate; the worm may be provided with a handwheel 205, and the worm may be driven to rotate by rotating the handwheel 205 so as to drive the worm wheel to rotate, thereby driving the rotating shaft 201 to rotate. According to an embodiment of the present invention, the worm gear structure 204 may have a self-locking function, and the gear holder 200 may be fixed at any desired angle.

With continued reference to fig. 3 and 6, in accordance with an embodiment of the present invention, wherein the sum of the clockwise rotation angle and the counterclockwise rotation angle of the gear holder 200 may be 90 °. As shown in fig. 3, the gear holder 200 may be defined to rotate clockwise by a predetermined angle, and as shown in fig. 6, the gear holder 200 may be defined to rotate counterclockwise by a predetermined angle. According to an embodiment of the present invention, the gear holder 200 may be rotated 90 ° counterclockwise, or 90 ° clockwise, or 30 ° clockwise, and then 60 ° counterclockwise. Still alternatively, according to an embodiment of the present invention, the clockwise rotation angle and the counterclockwise rotation angle of the gear holder 200 are 45 °, respectively. The rotation angle is not particularly limited, and the gear holder 200 may be rotated by any angle according to the detection requirement, for example, but not limited to, the gear holder 200 may be rotated by 180 ° clockwise.

With continued reference to fig. 1-6 and 8, according to an embodiment of the present invention, a side guard is provided on a side of the gear holder 200 that can face the gear 400 for supporting the side of the gear 400. Specifically, the side of the gear holder 200 that can face the gear 400 may be the side of the first holder or the second holder that faces the gear 400. According to an embodiment of the present invention, wherein the side guard is a roller structure 203 rotatable around its axis, the central axis of the roller structure 203 may extend in a radial direction of the gear carrying shaft 300. According to an embodiment of the present invention, the number of the side guards may be multiple, and the multiple side guards may be uniformly distributed on the same circumference or may be distributed on different circumferences according to requirements, and all of them are within the protection scope of the present invention. According to an embodiment of the present invention, the first holder and the second holder are provided with roller structures 203. According to an embodiment of the present invention, the number of the roller structures 203 on the first holder or the second holder may be 6, 8, 10, or the like.

According to an embodiment of the present invention, the outer circumference of the roller structure 203 is provided with a flexible structure to prevent scratching the side of the gear 400. According to an embodiment of the present invention, the flexible structure disposed on the outer periphery of the roller structure 203 may be made of the same material as the flexible structure disposed on the outer periphery of the gear bearing shaft 300. The side guard may be provided with another structure, for example, a ball structure embedded in the inner side surface of the first holder or the second holder, and friction between the side surface of the gear and the side guard may be rolling friction to reduce wear.

Referring to fig. 2 to 4, in use, the handwheel 205 may be manually rotated, so as to drive the worm wheel of the worm gear structure 204 to rotate, so as to drive the gear holder 200 to rotate, as shown in fig. 2, the gear holder 200 may be rotated clockwise by a desired angle, for example, but not limited to, 45 ° clockwise. The web on the upper side can now be detected. In this state, the rotation of the handwheel 205 can be stopped, and the gear holder 200 can maintain the inclination angle due to the self-locking function of the worm gear structure 204. Next, as shown in fig. 3, the gear 400 may be rotated in the direction of the arrow to rotate about the gear carrying shaft 300 to inspect different locations on the inspection surface. Then, the hand wheel 205 is rotated again to rotate the gear holder 200 to a required angle for detection, as shown in fig. 4, for example, but not limited to, 45 °, and in this state, the gear 400 is rotated in the arrow direction in fig. 5 to rotate the gear 400 on the gear receiving shaft 300 to detect different portions of the detection surface, thereby enabling the omnidirectional detection of the gear 400.

The gear detection equipment provided by the invention can meet the all-dimensional detection of the whole gear only by once hoisting, can enable the gear to overturn so as to detect different gear sides, can also enable the gear to rotate around the gear bearing shaft so as to detect different parts on the same side, or detect the gear teeth, reduces the labor force and improves the working efficiency.

The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the above description, numerous specific details are provided to give a thorough understanding of embodiments of the invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, materials, or operations are not shown or described in detail to avoid obscuring aspects of the invention.

Claims

1. A gear detecting apparatus, comprising:

a base;

the gear retainer is rotatably arranged on the base;

the gear bearing shaft is used for supporting a gear, the gear bearing shaft is arranged on the gear retainer, and the central axis of the gear bearing shaft and the central axis of the rotating shaft of the gear retainer are arranged in an angle mode.

2. The gear detection apparatus of claim 1, wherein a central axis of the gear carrier shaft is perpendicular to a central axis of a rotating shaft of the gear holder.

3. The gear sensing apparatus of claim 1 wherein an outer peripheral surface of the gear carrying shaft is provided with a compliant structure.

4. The gear detection apparatus of claim 3 wherein said flexible structure is comprised of a nylon material.

5. The gear testing apparatus of claim 1 wherein said gear cage is mounted to said base by a ball bearing mount.

6. The gear detecting apparatus of claim 1, further comprising a holder driving device coupled to a rotation shaft of the gear holder to drive the gear holder to rotate.

7. The gear detecting device according to claim 6, wherein the holder driving means is a worm gear structure, and the worm gear is disposed on the rotating shaft to rotate the rotating shaft.

8. The gear detecting apparatus of claim 1, wherein a sum of the clockwise rotation angle and the counterclockwise rotation angle of the gear holder is 90 °.

9. The gear detecting apparatus according to claim 8, wherein the clockwise rotation angle and the counterclockwise rotation angle of the gear holder are 45 ° respectively.

10. The gear detecting apparatus according to any one of claims 1 to 9, wherein a side guard is provided on a side of the gear holder that can face the gear for supporting the side of the gear.

11. The gear testing apparatus of claim 10 wherein said side guard is a roller structure rotatable about its axis, the central axis of said roller structure extending radially of said gear carrier shaft.

12. The gear testing apparatus of claim 11, wherein said side guard is a plurality of said side guards, and a plurality of said side guards are evenly distributed on a same circumference.

13. The gear detecting apparatus of claim 11, wherein the outer circumferential surface of the roller structure is provided with a flexible structure to prevent scratching of the side surface of the gear.