CN220388565U - Bearing press-fitting device - Google Patents

Abstract

The embodiment of the utility model provides a bearing press-fitting device which comprises an oil press, an upper pressing ring connected with the oil press, a metal disc positioned below the upper pressing ring and a flexible pressing sleeve positioned below the metal disc. The flexible pressing sleeve is provided with a plurality of first mounting holes, and the metal disc is inserted into the plurality of first mounting holes through a plurality of first screws and is connected with the flexible pressing sleeve. The metal disc is used for adjusting the flatness of the flexible pressing sleeve so that the flexible pressing sleeve is parallel to the end face of the bearing. Like this, bearing press-fit device sets up metal disk and flexible cover through on the last clamping ring of hydraulic press, can effectively guarantee the equipment quality of bearing, reduces the damage and the hole strain of pressure equipment in-process bearing, avoids the bearing to exist impurity such as iron fillings and copper chip after the equipment, reduces the unusual wearing and tearing of bearing and jamming phenomenon, guarantees the life of bearing, promotes work efficiency.

Description

Bearing press-fitting device

Technical Field

The utility model relates to the technical field of motor manufacturing, in particular to a bearing press-fitting device.

Background

With the continuous development of railway technology, the running speed of a train is continuously improved, and the overall performance requirement on a locomotive is also higher. The traditional locomotive type of the Chinese railway mainly comprises an east wind series diesel locomotive and a Shaoshan series electric locomotive, and the two series direct current locomotives still bear very important tasks. The motor bearing is used as an important component in the locomotive, and plays an extremely important role in the normal operation of the locomotive. The motor bearing operates under the working condition of high load and high temperature for a long time, if the bearing is assembled by rigid press mounting, the bearing can be damaged, and the normal operation of the bearing is seriously influenced due to the existence of impurities, the heating and vibration alarm of the bearing occur, the operation of a locomotive is influenced, the maintenance cost of the locomotive is increased, and the quality of the bearing assembly is ensured to be the most critical technology, wherein any detail can influence the quality safety of the running of the locomotive.

In the traditional bearing assembly, the bearing is generally knocked by a copper bar to be installed in a motor after the industrial refrigerator is frozen, or the bearing is directly pressed by an oil press. According to manufacturing process, need guarantee that the bearing does not have burr and higher cleanliness when the traction motor bearing is assembled, on the one hand easily cause the existence of bearing damage and impurity when traditional rigidity pressure equipment, and can't detect the bearing state after the equipment, cause certain potential safety hazard to traction motor bearing normal operating, on the other hand if the refrigeration is assembled and need pass through multiple operation, the process is complicated and inefficiency, is unfavorable for traction motor bearing equipment line production.

Generally speaking, when the bearing press-mounting device in the present stage is used for press-mounting, because the press-mounting or knocking, the alignment is difficult, the bearing damage and the inner hole surface strain are easily caused during the press-mounting, scrap iron or copper scraps can exist in the bearing after the assembly, the abrasion and clamping risks exist during the bearing operation, and the potential safety hazard of driving is present.

Disclosure of Invention

The embodiment of the application provides a bearing press-fitting device, this bearing press-fitting device is arranged in solving the bearing press-fitting device at the present stage that proposes among the above-mentioned prior art when carrying out the pressure equipment, because pressure equipment or strike and pack the alignment more difficult, cause bearing damage and hole face strain easily during the pressure equipment, and can exist iron fillings or copper scraps in the bearing inside after the equipment, there are wearing and tearing and jamming risk when the bearing operates, have the problem of driving potential safety hazard.

In order to achieve the above object, the embodiment of the present utility model provides the following technical solutions:

the embodiment of the utility model provides a bearing press-fitting device which comprises an oil press, an upper pressing ring connected with the oil press, a metal disc positioned below the upper pressing ring and a flexible pressing sleeve positioned below the metal disc;

the flexible pressing sleeve is provided with a plurality of first mounting holes, and the metal disc is connected with the flexible pressing sleeve through a plurality of first screws inserted into the plurality of first mounting holes;

the metal disc is used for adjusting the flatness of the flexible pressing sleeve so that the flexible pressing sleeve is parallel to the end face of the bearing.

On the basis of the technical scheme, the utility model can be improved as follows.

In one possible implementation manner, the metal disc is provided with a plurality of second mounting holes;

the plurality of second mounting holes correspond to the plurality of first mounting holes, and the plurality of first screws penetrate through the plurality of second mounting holes and are inserted into the plurality of first mounting holes, so that the metal disc is connected to the flexible pressing sleeve.

In one possible implementation, the flexible pressure jacket has an elastic deformation such that the flexible pressure jacket is in contact with the end face of the bearing.

In one possible implementation manner, a plurality of third mounting holes are formed in the upper pressing ring, and the upper pressing ring is connected with the metal disc through a plurality of second screws inserted into the plurality of third mounting holes.

In one possible implementation manner, the metal disc is further provided with a plurality of fourth mounting holes;

the plurality of fourth mounting holes correspond to the plurality of third mounting holes, and the plurality of second screws penetrate through the plurality of third mounting holes and are inserted into the plurality of fourth mounting holes, so that the upper pressing ring is connected to the metal disc.

In one possible implementation, the plurality of fourth mounting holes and the plurality of second mounting holes are disposed on the metal disc at intervals.

In one possible implementation manner, the upper pressing ring is further provided with a plurality of fifth mounting holes;

the plurality of fifth mounting holes are positioned on the inner sides of the plurality of third mounting holes;

the upper pressing ring is inserted into a plurality of fifth mounting holes through a plurality of third screws and is connected with the oil press.

In one possible implementation, the first mounting hole, the fourth mounting hole, and the fifth mounting hole are counter bores;

the second mounting hole and the third mounting hole are through holes.

In one possible implementation, the upper press ring, the metal disc and the flexible press sleeve are the same in diameter size.

In one possible implementation, the metal disc is a disc made of cast iron alloy;

the flexible pressing sleeve is made of nylon material.

The embodiment of the utility model provides a bearing press-fitting device which comprises an oil press, an upper pressing ring connected with the oil press, a metal disc positioned below the upper pressing ring and a flexible pressing sleeve positioned below the metal disc. The flexible pressing sleeve is provided with a plurality of first mounting holes, and the metal disc is inserted into the plurality of first mounting holes through a plurality of first screws and is connected with the flexible pressing sleeve. The metal disc is used for adjusting the flatness of the flexible pressing sleeve so that the flexible pressing sleeve is parallel to the end face of the bearing. Like this, bearing press-fit device sets up metal disk and flexible cover through on the last clamping ring of hydraulic press, can effectively guarantee the equipment quality of bearing, reduces the damage and the hole strain of pressure equipment in-process bearing, avoids the bearing to exist impurity such as iron fillings and copper chip after the equipment, reduces the unusual wearing and tearing of bearing and jamming phenomenon, guarantees the life of bearing, promotes work efficiency.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions of the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a cross-sectional view of a bearing press-fitting apparatus according to an embodiment of the present utility model;

FIG. 2 is a top view showing the structure of a metal plate in a bearing press-fitting apparatus according to an embodiment of the present utility model;

FIG. 3 is a cross-sectional view of a section of a metal disc A-A in a bearing press-fitting apparatus according to an embodiment of the present utility model;

FIG. 4 is a top view illustrating a structure of a flexible press jacket in a bearing press-fitting apparatus according to an embodiment of the present utility model;

fig. 5 is a structural cross-sectional view of a section B-B of a flexible press sleeve in a bearing press-fitting apparatus according to an embodiment of the present utility model.

Reference numerals illustrate:

100-bearing press-fitting device;

200-oil press;

210-a third screw;

300-pressing ring;

310-a third mounting hole; 320-a second screw; 330-a fifth mounting hole;

400-metal disc;

410-a second mounting hole; 420-a first screw; 430-fourth mounting holes;

500-flexible press sleeve;

510-first mounting hole.

Detailed Description

As described in the background art, when the bearing press-fitting device in the present stage is used for press-fitting, because the press-fitting or knocking, the loading and the alignment are difficult, the bearing damage and the inner hole surface strain are easily caused during the press-fitting, scrap iron or copper scraps can exist in the bearing after the assembly, the abrasion and clamping risks exist during the bearing operation, and the potential safety hazard of driving exists.

Aiming at the technical problems, the embodiment of the utility model provides a bearing press-fitting device, which comprises an oil press, an upper pressing ring connected with the oil press, a metal disc positioned below the upper pressing ring and a flexible pressing sleeve positioned below the metal disc. The flexible pressing sleeve is provided with a plurality of first mounting holes, and the metal disc is inserted into the plurality of first mounting holes through a plurality of first screws and is connected with the flexible pressing sleeve. The metal disc is used for adjusting the flatness of the flexible pressing sleeve so that the flexible pressing sleeve is parallel to the end face of the bearing. Like this, bearing press-fit device sets up metal disk and flexible cover through on the last clamping ring of hydraulic press, can effectively guarantee the equipment quality of bearing, reduces the damage and the hole strain of pressure equipment in-process bearing, avoids the bearing to exist impurity such as iron fillings and copper chip after the equipment, reduces the unusual wearing and tearing of bearing and jamming phenomenon, guarantees the life of bearing, promotes work efficiency.

In order to make the above objects, features and advantages of the embodiments of the present utility model more comprehensible, the technical solutions of the embodiments of the present utility model will be described clearly and completely with reference to the accompanying drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. 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 bearing press-fitting device at the present stage usually adopts two press-fitting modes when in press-fitting. The first press-mounting mode is direct press-mounting by an oil press, and the second press-mounting mode is knocking-mounting by a copper bar after freezing by an industrial refrigerator. Through the two press mounting modes, the bearing can be pressed into an inner hole on the traction motor, and the normal operation of the traction motor is ensured.

However, the existing bearing press-fitting method has the following disadvantages:

1. the bearing is difficult to align in a press fit or knocking mode during press fit, and if the bearing is not completely aligned, the condition that the bearing is damaged by pressure or the inner hole surface is damaged by pulling during press fit can be caused.

2. When the installation mode of knocking and loading with the copper bar after freezing of the industrial refrigerator is adopted, the freezing time is relatively longer due to the larger size of the bearing, and the problem of low efficiency is easy to occur when the yield is larger, so that the production bottleneck is formed. In addition, the bearing is lower than the temperature of the surrounding environment in the temperature returning process, so that water drops possibly condense on the surface of the bearing, dust and scrap iron are easily stained on the surface of the bearing, and the cleanliness is difficult to ensure.

3. When adopting the mounting means that pressure equipment or bar copper were strikeed, probably there can be to strike in-process bearing self by knocking off partial iron fillings and bar copper in the condition of knocking partial copper bits that drop in-process, iron fillings and copper bits are difficult for the clearance after the bearing equipment, can have wearing and tearing jamming phenomenon when the bearing operation, have certain driving potential safety hazard.

To solve the above problems, the embodiment of the present utility model provides a bearing press-fitting device 100, in which a metal disc 400 and a flexible press sleeve 500 are disposed on the basis of an upper press ring 300 of an oil press 200, so that the bearing press-fitting device 100 has a certain buffer in the alignment process of the bearing, and the service life of the bearing is prolonged. The following describes a specific structure of the bearing press-fitting apparatus 100 provided in the embodiment of the present application with reference to the accompanying drawings.

Referring to fig. 1, the bearing press-fitting apparatus 100 may include an oil press 200, an upper press ring 300, a metal disc 400, and a flexible press sleeve 500. Wherein, the oil press 200 may be connected with the upper press ring 300, the metal disc 400 may be positioned under the upper press ring 300 and the metal disc 400 is connected with the upper press ring 300, and the flexible press sleeve 500 may be positioned under the metal disc 400 and the flexible press sleeve 500 is connected with the metal disc 400. In one possible implementation, the upper press ring 300, the metal disc 400, and the flexible press sleeve 500 may all be cylindrical.

In this embodiment, the flexible pressing sleeve 500 may be provided with a first mounting hole 510, where the metal disc 400 may be inserted into the first mounting hole 510 through the first screw 420, so that the metal disc 400 is connected with the flexible pressing sleeve 500. The number of the first mounting holes 510 and the first screws 420 may be 6, and of course, the number of the first mounting holes 510 and the first screws 420 may be 4, 8, or more in other embodiments. In one possible implementation, the number of the first mounting holes 510 and the first screws 420 may be plural, and there is no limitation in the number of the first mounting holes 510 and the first screws 420 in this embodiment.

On the basis of the above embodiment, the metal disc 400 can adjust the flatness of the end surface of the flexible pressing sleeve 500, so that the flexible pressing sleeve 500 is parallel to the end surface of the bearing, and automatic alignment during press-fitting of the bearing is realized.

Referring to fig. 1, 2 and 3, in a specific implementation of the present embodiment, the metal disc 400 may be provided with a second mounting hole 410. The number of the second mounting holes 410 may be 6, of course, in other embodiments, the number of the second mounting holes 410 may be 4, 8 or more. In one possible implementation, the number of the second mounting holes 410 may be plural, and there is no limitation in the number of the second mounting holes 410 in this embodiment. The second mounting hole 410 may correspond to the first mounting hole 510, and the first screw 420 may be inserted into the second mounting hole 410 and further inserted into the first mounting hole 510, so that the metal disc 400 is connected to the flexible pressing sleeve 500.

Referring to fig. 1 and 4, the flexible press sleeve 500 may have elastic deformation such that the flexible press sleeve 500 contacts with an end surface of the bearing, based on the above-described embodiment. Thus, the flexible pressing sleeve 500 has a certain buffer in the alignment process of the bearing, and is aligned smoothly. In addition, the elastic deformation of the flexible pressing sleeve 500 can play a role in protecting the bearing, and bearing damage caused by hard contact and inner hole surface strain of the motor are reduced.

With continued reference to fig. 1, on the basis of the above embodiment, a third mounting hole 310 may be formed in the upper pressing ring 300, where the upper pressing ring 300 may be inserted into the third mounting hole 310 through a second screw 320, so that the upper pressing ring 300 is connected to the metal disc 400. The number of the third mounting holes 310 and the second screws 320 may be 6, and of course, the number of the third mounting holes 310 and the second screws 320 may be 4, 8, or more in other embodiments. In one possible implementation, the number of the third mounting holes 310 and the second screws 320 may be plural, and there is no limitation in the number of the third mounting holes 310 and the second screws 320 in this embodiment.

With continued reference to fig. 1, 2 and 3, a fourth mounting hole 430 may be formed in the metal plate 400 in accordance with the above-described embodiment. The number of the fourth mounting holes 430 may be 6, for example, although in other embodiments, the number of the fourth mounting holes 430 may be 4, 8, or more. In one possible implementation, the number of the fourth mounting holes 430 may be plural, and there is no limitation in the number of the fourth mounting holes 430 in the present embodiment. The fourth mounting hole 430 may correspond to the third mounting hole 310, and the second screw 320 may be inserted through the third mounting hole 310 and further inserted into the fourth mounting hole 430, so that the upper clamping ring 300 is connected to the metal disc 400.

With continued reference to fig. 2, in the above embodiment, the fourth plurality of mounting holes 430 and the second plurality of mounting holes 410 may be disposed on the metal disc 400 at intervals. In this embodiment, from the top view of the metal disc 400, the 6 fourth mounting holes 430 and the 6 second mounting holes 410 may form a circle, the distances from each fourth mounting hole 430 and each second mounting hole 410 reaching the center of the metal disc 400 are the same, and the fourth mounting holes 430 and the second mounting holes 410 are alternately and uniformly distributed on the metal disc 400, so that the metal disc 400 is more stable to the connection of the upper pressing ring 300 located above the metal disc 400 and the flexible pressing sleeve 500 located below the metal disc 400.

With continued reference to fig. 1, a fifth mounting hole 330 may be formed in the upper press ring 300, based on the above embodiment. Wherein the fifth mounting hole 330 may be located inside the third mounting hole 310. In one possible implementation, the upper pressing ring 300 may be inserted into the fifth mounting hole 330 through the third screw 210, thereby connecting the upper pressing ring 300 with the oil press 200. The number of the fifth mounting holes 330 and the third screws 210 may be 6, but of course, the number of the fifth mounting holes 330 and the third screws 210 may be 4, 8, or more in other embodiments. In one possible implementation, the number of the fifth mounting holes 330 and the third screws 210 may be plural, and there is no limitation in the number of the fifth mounting holes 330 and the third screws 210 in the present embodiment.

Referring to fig. 1, 3 and 5, the first, fourth and fifth mounting holes 510, 430 and 330 may be provided as counter bores on the basis of the above-described embodiments. Accordingly, the second mounting hole 410 and the third mounting hole 310 may be provided as through holes. Thus, the metal disc 400 may be inserted into the first mounting hole 510 through the second mounting hole 410 by the first screw 420, so that the metal disc 400 is connected to the flexible pressing sleeve 500. The upper pressing ring 300 may be inserted into the third mounting hole 310 and then inserted into the fourth mounting hole 430 through the second screw 320, so that the upper pressing ring 300 is coupled to the metal plate 400. Additionally, provision of the counterbore can play a role in fastening, further increasing the shock resistance of the bearing press-fit device 100.

With continued reference to fig. 1, the upper press ring 300, the metal disc 400, and the flexible press sleeve 500 are the same in diameter dimensions on the basis of the above-described embodiment. In this way, better adjustment between the upper press ring 300, the metal disc 400, and the flexible press sleeve 500 is facilitated. In one possible implementation, the diameter dimensions of the upper press ring 300, the metal disc 400, and the flexible press sleeve 500 may be 400mm, the height dimension of the metal disc 400 may be 110mm, the height dimension of the flexible press sleeve 500 may be 50mm, the diameter of the first screw 420 may be 12mm, the length of the first screw 420 may be 120mm, the diameter of the second screw 320 may be 12mm, and the length of the second screw 320 may be 70mm. The distance between the two first, second, third and fourth mounting holes 510, 410, 310 and 430, which are diagonal to each other, may be 250mm in a top view.

On the basis of the above embodiment, the metal disc 400 may be a disc made of Q235-a cast iron alloy, and cast iron has good shock absorption, wear resistance and corrosion resistance, and can enhance the shock resistance of the bearing press-fitting device 100. Alternatively, the flexible press sleeve 500 may be a press sleeve made of nylon. The nylon material is softer, has certain elastic deformation, is favorable to protecting the bearing, and reduces the bearing damage and the inner hole surface strain of the motor caused by hard contact.

In this embodiment of the application, the whole bearing press-fit device 100 adopts a split structure, and the upper press ring 300, the metal disc 400 and the flexible press sleeve 500 can be respectively installed and fixed, so that the replacement of the flexible press sleeve 500 in the later stage is convenient, and the press-fit surface is always kept to have good flatness. In one possible implementation manner, the mounting sequence of the bearing press-fitting device 100 may be that the metal disc 400 and the flexible press-fitting 500 are connected by the first screw 420, and fine adjustment of the flatness of the flexible press-fitting 500 is performed during the connection process, so that the flexible press-fitting 500 is parallel to the working table; and then the metal plate 400 and the flexible pressing sleeve 500 are integrally connected with the upper pressing ring 300 by the second screw 320, thereby completing the installation and fixation of the bearing press-fitting device 100.

In the embodiment of the application, the bearing press-fitting device 100 is arranged to ensure that flexible alignment is realized during bearing press-fitting, press-fitting is facilitated, and assembly quality is ensured. In addition, unnecessary collision damage of the bearing is avoided, so that waste waiting time during bearing assembly is reduced, procedures are effectively shortened to form pipelining, and working efficiency is improved. Meanwhile, the bearing assembly quality is guaranteed, bearing damage and inner hole strain are prevented, no scrap iron, copper scraps and other impurities exist after the bearing assembly, the bearing clamping stagnation risk is reduced, and the service life of the bearing is ensured.

In this specification, each embodiment or implementation is described in a progressive manner, and each embodiment focuses on a difference from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other.

It should be noted that references in the specification to "in the detailed description", "in some embodiments", "in this embodiment", "exemplarily", etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Moreover, such phrases are not necessarily referring to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, terms should be understood at least in part by use in the context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, at least in part depending on the context. Similarly, terms such as "a" or "an" may also be understood to convey a singular usage or a plural usage, depending at least in part on the context.

It should be readily understood that the terms "on … …", "above … …" and "above … …" in this disclosure should be interpreted in the broadest sense such that "on … …" means not only "directly on something", but also includes "on something" with intermediate features or layers therebetween, and "above … …" or "above … …" includes not only the meaning "on something" or "above" but also the meaning "above something" or "above" without intermediate features or layers therebetween (i.e., directly on something).

Further, spatially relative terms, such as "below," "beneath," "above," "over," and the like, may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may have other orientations (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein interpreted accordingly.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The bearing press-fitting device is characterized by comprising an oil press, an upper pressing ring connected with the oil press, a metal disc positioned below the upper pressing ring and a flexible pressing sleeve positioned below the metal disc;

the flexible pressing sleeve is provided with a plurality of first mounting holes, and the metal disc is connected with the flexible pressing sleeve through a plurality of first screws inserted into the plurality of first mounting holes;

the metal disc is used for adjusting the planeness of the flexible pressing sleeve so that the flexible pressing sleeve is parallel to the end face of the bearing.

2. The bearing press-fit device according to claim 1, wherein a plurality of second mounting holes are formed in the metal plate;

the second mounting holes correspond to the first mounting holes, the first screws penetrate through the second mounting holes and are inserted into the first mounting holes, and therefore the metal disc is connected to the flexible pressing sleeve.

3. The bearing press-fitting apparatus according to claim 2, wherein the flexible press-fitting has an elastic deformation to bring the flexible press-fitting into contact with an end face of the bearing.

4. The bearing press-fitting device of claim 3, wherein the upper press-fitting ring is provided with a plurality of third mounting holes, and the upper press-fitting ring is connected with the metal disc through a plurality of second screws inserted into a plurality of the third mounting holes.

5. The bearing press-fitting device of claim 4, wherein the metal disc is further provided with a plurality of fourth mounting holes;

the plurality of fourth mounting holes correspond to the plurality of third mounting holes, the plurality of second screws penetrate through the plurality of third mounting holes and are inserted into the plurality of fourth mounting holes, and therefore the upper pressing ring is connected to the metal disc.

6. The bearing press-fit device as in claim 5, wherein a plurality of said fourth mounting holes are spaced apart from a plurality of said second mounting holes on said metal disc.

7. The bearing press-fit device according to claim 6, wherein the upper press ring is further provided with a plurality of fifth mounting holes;

a plurality of fifth mounting holes are formed on the inner sides of a plurality of third mounting holes;

the upper pressing ring is inserted into a plurality of fifth mounting holes through a plurality of third screws and is connected with the oil press.

8. The bearing press-fit device according to claim 7, wherein the first, fourth and fifth mounting holes are counter bores;

the second mounting hole and the third mounting hole are through holes.

9. The bearing press-fit device according to claim 4, wherein the upper press ring, the metal plate, and the flexible press sleeve are the same in diameter size.

10. The bearing press-fitting device according to any one of claims 1 to 9, wherein the metal disc is a disc made of cast iron alloy;

the flexible pressing sleeve is made of nylon materials.