CN115091167A

CN115091167A - Bearing installation device and gearbox production device

Info

Publication number: CN115091167A
Application number: CN202210812298.0A
Authority: CN
Inventors: 郭建; 刘成良; 陈浩; 冯伟; 祝歆懿; 尚军; 张志新; 钟山友; 黄维祥
Original assignee: FAW Jiefang Automotive Co Ltd
Current assignee: FAW Jiefang Automotive Co Ltd
Priority date: 2022-07-12
Filing date: 2022-07-12
Publication date: 2022-09-23
Anticipated expiration: 2042-07-12
Also published as: CN115091167B

Abstract

The application relates to a bearing installation device and a gearbox production device. The bearing mounting device is used for pushing a bearing on an output shaft of a gearbox to a mounting position along the axial direction of the output shaft of the gearbox, and comprises: installation part, push against piece, drive assembly. The mounting part is sleeved on the output shaft, and an external thread is arranged on the mounting part. The pushing piece is provided with a matching threaded hole matched with the external thread. The driving component comprises a driving piece in driving connection with the pushing piece, and the driving piece is used for driving the pushing piece to rotate relative to the mounting piece, so that the pushing piece can move towards the bearing on the output shaft along the axial direction of the output shaft. The pushing force of the pushing piece on the bearing is dispersed, and the bearing cannot be lost. The pushing piece can be driven by the driving piece, manual work is liberated, and the pushing piece can move more accurately.

Description

Bearing installation device and gearbox production device

Technical Field

The application relates to the technical field of gearbox production and assembly, in particular to a bearing installation device and a gearbox production device.

Background

In automobile production, the assembly of the gearbox is complex, and the installation of the bearing is more important in the assembly of the whole gearbox. In a traditional assembly process of the gearbox, the bearing of the output shaft of the gearbox is usually installed by knocking with a simple tool. However, the strength of manual knocking in the assembling process of the conventional gearbox is high, and the bearing is easy to lose.

Disclosure of Invention

Based on this, it is necessary to be directed at the problem that intensity that artifical the beating was great in the assembly process of traditional gearbox, and lead to the bearing to appear the loss easily, provides a bearing installation device and gearbox apparatus for producing.

According to a first aspect of the present application, there is provided a bearing mounting device for urging a bearing on an output shaft of a transmission case to a mounting position in an axial direction of the output shaft of the transmission case, the bearing mounting device comprising:

the mounting piece is sleeved on the output shaft and is provided with an external thread;

the pushing piece is provided with a matching threaded hole matched with the external thread; and the number of the first and second groups,

and the driving component comprises a driving part in driving connection with the pushing part, and the driving part is used for driving the pushing part to rotate relative to the mounting part so that the pushing part can move towards the bearing on the output shaft along the axial direction of the output shaft.

In one embodiment, the mounting part is provided with a mounting threaded hole extending along the axial direction of the output shaft in a penetrating manner, and the mounting part is connected to the output shaft in a threaded manner through the mounting threaded hole.

In one embodiment, the mounting piece comprises a main body part provided with the mounting threaded hole and a first connecting part arranged at one end of the main body part far away from the bearing;

the driving assembly further comprises a driver, and the driver is in driving connection with the first connecting portion to drive the mounting piece to rotate relative to the output shaft.

In one embodiment, a first end surface for covering one end of the mounting threaded hole is arranged on one side, facing the main body part, of the first connecting part, and a positioning part for extending into the mounting threaded hole is arranged on the first end surface of the first connecting part and is used for abutting against the output shaft when the mounting part is located at a preset position.

In one embodiment, the main body part is provided with a plurality of first threaded holes, and the first connecting part is provided with a plurality of second threaded holes corresponding to the first mounting holes one to one;

the mounting piece further comprises a plurality of threaded pieces matched with the first threaded holes and the second threaded holes, so that the first connecting portion can be fixed to the main body portion in a threaded mode.

In one embodiment, the bearing mounting device further includes a second connecting portion detachably connected to one end of the pushing member away from the bearing, and the driving member is connected to one side of the second connecting portion away from the pushing member.

In one embodiment, the pushing member is provided with a plurality of insertion holes facing the second connecting portion, the second connecting portion is provided with a plurality of insertion rods corresponding to the insertion holes one by one, and each insertion rod is inserted into the corresponding insertion hole.

In one embodiment, an annular mounting groove is formed in the inner side wall of the matching threaded hole and is positioned on one side, close to the bearing, of the matching threaded hole;

the pushing piece further comprises a clamping ring matched with the annular mounting groove, and the clamping ring is mounted in the annular mounting groove.

In one embodiment, an end of the abutting member facing the bearing is provided with an abutting portion surrounding the matching threaded hole, and the abutting portion is configured to abut against the bearing when the abutting member moves towards the bearing on the output shaft along the axial direction of the output shaft.

According to a second aspect of the present application, there is provided a transmission manufacturing apparatus including the bearing mounting apparatus described in any one of the above, the bearing mounting apparatus being configured to urge a bearing on an output shaft of a transmission to a mounting position in an axial direction of the output shaft of the transmission, the bearing mounting apparatus including:

the pushing piece is provided with a matching threaded hole matched with the external thread; and (c) a second step of,

In the technical scheme of this application, through set up the external screw thread on the installed part, again support and set up on the piece that pushes away with external screw thread complex cooperation screw hole to make when the relative installed part of driving piece drive support and push away the piece rotates, support and push away the axial that the piece can follow the output shaft and move towards the bearing on the output shaft. Therefore, the pushing piece is close to the bearing and pushes the bearing to the mounting position. The mounting piece can not move when the pushing piece moves towards the bearing, and the mounting piece can be detached from the output shaft after the pushing piece completes the mounting of the bearing, so that the bearing can be continuously used.

Different from the prior art, the pushing part is close to the bearing through rotary motion, so that the pushing force applied to the bearing by the pushing part is dispersed, and the bearing cannot be lost. And the pushing piece can be connected with the driving piece, so that the labor is liberated, the use cost is reduced, and the movement of the pushing piece is more accurate.

Drawings

Fig. 1 is a schematic structural view of a part of the structure of an embodiment of a bearing mounting apparatus proposed in the present application;

FIG. 2 is an exploded view of the structure of FIG. 1;

FIG. 3 is a schematic cross-sectional view of the structure of FIG. 1;

fig. 4 is a schematic top view of the mount of fig. 1.

The reference numbers indicate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Bearing mounting device	1	Mounting member
11	External thread	12	Mounting threaded hole
				13	Main body part	131	First screw hole
14	First connecting part	141	Positioning part
				142	Second screw hole	15	Screw joint
2	Push-against piece	21	Matching threaded hole
				22	Second connecting part	221	Inserted link
23	Jack	24	Snap ring
				25	Push part	\	\

The implementation, functional features and advantages of the objectives of the present application will be further explained with reference to the accompanying drawings.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and are not to be construed as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be interconnected within two elements or in a relationship where two elements interact with each other unless otherwise specifically limited. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. As used herein, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are for purposes of illustration only and do not denote a single embodiment.

In automobile production, the assembly of the gearbox is complex, and the installation of the bearing is more important in the assembly of the whole gearbox. In a traditional assembly process of the gearbox, the bearing of the output shaft of the gearbox is usually installed by knocking with a simple tool. However, the strength of manual knocking in the assembling process of the conventional transmission is large, and the bearing is easily worn.

In view of this, this application proposes a gearbox apparatus for producing, the gearbox apparatus for producing includes the bearing installation device, as long as the gearbox apparatus for producing that includes the bearing installation device all belongs to the gearbox apparatus for producing of this application. Fig. 1 to 4 are schematic views of an embodiment of a bearing mounting device provided in the present application.

Referring to fig. 1 to 3, a bearing mounting device 100 provided in the present application is used for pushing a bearing on an output shaft of a transmission to a mounting position along an axial direction of the output shaft of the transmission, and the bearing mounting device 100 includes a mounting member 1, an urging member 2 and a driving assembly. The output shaft is located to the cover of installed part 1, and is equipped with external screw thread 11 on the installed part 1, supports and pushes away piece 2 and is provided with the cooperation screw hole 21 with external screw thread 11 matched with. The driving component comprises a driving piece in driving connection with the pushing piece 2, and the driving piece is used for driving the pushing piece 2 to rotate relative to the mounting piece 1, so that the pushing piece 2 can move towards the bearing on the output shaft along the axial direction of the output shaft.

In the technical scheme of this application, through set up external screw thread 11 on installed part 1, set up again on supporting and push away piece 2 with external screw thread 11 complex cooperation screw hole 21 to make when the relative installed part 1 of driving piece drive supporting and push away piece 2 rotates, support and push away piece 2 and can move towards the bearing on the output shaft along the axial of output shaft. Thus, the pushing part 2 is close to the bearing and pushes the bearing to the mounting position. When the pushing element 2 moves towards the bearing, the mounting element 1 does not move, and after the pushing element 2 completes the mounting of the bearing, the mounting element 1 can be detached from the output shaft for subsequent use.

Different from the prior art, the pushing part 2 is close to the bearing through rotary motion, so that the pushing force applied to the bearing by the pushing part 2 is dispersed, and the bearing cannot be lost. And the pushing piece 2 can be connected with the driving piece, so that the labor is liberated, the use cost is reduced, and the movement of the pushing piece 2 is more accurate.

In specific application, the threaded caliber on the output shaft is arranged in an echelon manner, so that the mounting part 1 can be sleeved on the output shaft, but the pushing part 2 cannot be directly screwed with the output shaft to be close to the bearing. When the pushing element 2 is directly screwed with the output shaft, the pushing element 2 cannot approach the bearing by rotating due to the change of the screw diameter of the output shaft. In this embodiment, therefore, the mounting member 1 actually functions as the adapter pusher 2 and the output shaft, so as to avoid the problem of the change of the screw diameter of the output shaft. In practical application, the inner diameter of the pushing part 2 is larger than the maximum outer diameter of the output shaft, so that the pushing part 2 can be prevented from contacting with the output shaft in the rotating process, and the pushing part 2 can be ensured to rotate smoothly.

It should be noted that there are many embodiments of the driving member, such as a pneumatic trigger, a stepping motor or a rotary cylinder, which can drive the pushing member 2 to rotate relative to the mounting member 1, and is not limited in this respect.

In some embodiments, referring to fig. 2 to 3, a mounting threaded hole 12 extending in the axial direction of the output shaft is formed through the mounting member 1, and the mounting member 1 is screwed to the output shaft by means of the mounting threaded hole 12.

In this embodiment, the bearing mounting device 100 needs to first sleeve the mounting member 1 on the output shaft when in use, and this makes the mounting member 1 need to be detachably mounted on the output shaft, so can be detached after the bearing is completely mounted. Threaded connection can satisfy the user demand of installed part 1, consequently in this embodiment, installed part 1 carries out the spiro union with the output shaft through running through the installation screw hole 12 of establishing along the axial extension of output shaft, and is fixed with output shaft screw-thread fit when the output shaft is located to installed part 1 cover, when supporting and pushing away 2 relative installed part 1 and rotating, supports and pushes away 2 still can follow the axial activity of output shaft, can not receive the influence.

In some embodiments, the mounting member 1 is screwed with the output shaft in a specific application, and the mounting member 1 needs to rotate continuously to complete the mounting. The time required to manually rotate the mounting member 1 is too long, which affects the efficiency of the process. Therefore, in an embodiment of the present application, the mounting member 1 includes a main body portion 13 having a mounting threaded hole 12, and a first connecting portion 14 disposed at an end of the main body portion 13 away from the bearing, and the driving assembly further includes a driver drivingly connected to the first connecting portion 14 to drive the mounting member 1 to rotate relative to the output shaft.

In this embodiment, the driver rotates by driving the first connection portion 14, and the first connection portion 14 drives the main body portion 13 to rotate synchronously, so as to realize the rotation of the mounting member 1 relative to the output shaft, and thus, the mounting member 1 is mounted quickly. The main body 13 and the driver are connected by the first connecting portion 14, so that the mounting member 1 can be automatically mounted, and the mounting efficiency is increased. It should be noted that there are many embodiments of the driver, such as a pneumatic trigger, a stepping motor or a rotary air cylinder, which can drive the first connecting portion 14 to rotate relative to the output shaft.

In some embodiments, referring to fig. 3, a first end surface for covering one end of the mounting threaded hole 12 is disposed on a side of the first connecting portion 14 facing the main body portion 13, and a positioning portion 141 for extending into the mounting threaded hole 12 is disposed on the first end surface of the first connecting portion 14, and the positioning portion 141 is configured to abut against the output shaft when the mounting member 1 is located at the predetermined position.

In a specific application, the position of the mounting member 1 also determines the position of the abutting member 2, so in order to ensure that the abutting member 2 can accurately abut against the bearing to the mounting position, the mounting position of the mounting member 1 should be accurate. Therefore, in the present embodiment, the first connecting portion 14 is configured to locate the position of the mounting member 1 by providing the positioning portion 141 extending into the mounting threaded hole 12 on the first end surface, so as to abut against the output shaft when the output shaft extends into the mounting threaded hole 12 for a certain length, so that the mounting member 1 cannot be further rotatably mounted. Of course, the length of the positioning portion 141 extending into the mounting threaded hole 12 can be adjusted according to the requirement, so that the mounting position of the mounting member 1 can be changed, and the movable position of the pushing member 2 can be adjusted. The threaded bore on the output shaft is the echelon setting, and required position can also be installed with installed part 1 to location portion 141 accurately, and can not overlap and establish on the improper threaded bore.

In some embodiments, referring to fig. 2 and fig. 4, the main body 13 is provided with a plurality of first threaded holes 131, the first connecting portions 14 are provided with a plurality of second threaded holes 142 corresponding to the first mounting holes one by one, and the mounting member 1 further includes a plurality of screw-connecting members 15 matching with the first threaded holes 131 and the second threaded holes 142, so that the first connecting portions 14 can be screwed and fixed to the main body 13.

The main body 13 needs to be fixedly connected to the first connecting portion 14, and in the solution of the present embodiment, the plurality of screw-connecting members 15 respectively pass through the corresponding second threaded holes 142 and extend into the corresponding second threaded holes 142, so as to screw-connect the first connecting portion 14 to the main body 13. The screw connection member 15 can make the torque input by the driver more dispersed by arranging a plurality of screw connection members, so as to reduce the generation of stress, and the screw connection manner also facilitates the replacement and maintenance of the first connection portion 14. In addition, there are many ways to fix the first connecting portion 14, such as welding, and even the main body portion 13 and the first connecting portion 14 can be directly integrated into one piece, and are not necessarily fixed by screwing.

In some embodiments, referring to fig. 2 to fig. 3, the bearing mounting device 100 further includes a second connecting portion 22, the second connecting portion 22 is detachably connected to an end of the pushing member 2 away from the bearing, and the driving member is connected to a side of the second connecting portion 22 away from the pushing member 2.

After the mounting member 1 is mounted, the driving member needs to drive the abutting member 2 to rotate, so that the abutting member 2 moves. In the embodiment, the pushing element 2 is provided with the matching threaded hole 21, so that the connection between the driving element and the pushing element 2 is limited. Therefore, the second connecting portion 22 is detachably mounted at the end, far away from the bearing, of the pushing member 2, and after the mounting member 1 is mounted, a user can mount the second connecting portion 22 on the pushing member 2, so that the driving member can drive the second connecting portion 22 to rotate to drive the pushing member 2 to rotate. The second connecting portion 22 can be detachably mounted, so that the second connecting portion 22 does not affect the mounting of the mounting member 1, and the maintenance and replacement are more convenient. The pushing part 2 is connected with the driving part through the second connecting part 22, so that the pushing part 2 can be automatically installed. And the pushing element 2 needs to push the bearing to the installation position, so the pushing element 2 needs a larger force, and the pushing element 2 cannot be rotated by manpower and can only be driven by the driving element. The second connecting portion 22 facilitates and stabilizes the connection between the driving member and the pushing member 2.

In some embodiments, the pushing member 2 is provided with a plurality of insertion holes 23 facing the second connecting portion 22, the second connecting portion 22 is provided with a plurality of insertion rods 221 corresponding to the insertion holes 23, and each insertion rod 221 is inserted into a corresponding insertion hole 23.

In this embodiment, when the second connection portion 22 needs to be installed, the user only needs to align the insertion rod 221 with the insertion hole 23 and insert the insertion rod into the corresponding insertion hole 23 to complete the installation. The insertion rod 221 and the insertion hole 23 are simple to match, convenient to install and low in production cost.

In some embodiments, an annular mounting groove is provided on the inner side wall of the mating threaded hole 21, and the annular mounting groove is located on the side of the mating threaded hole 21 close to the bearing. The pushing part 2 further comprises a snap ring 24 matched with the annular mounting groove, and the snap ring 24 is mounted in the annular mounting groove.

In this embodiment, after the bearing is pushed to the installation position, the pushing member 2 and the installation member 1 need to be detached from the output shaft, so as to facilitate subsequent use. At this time, the driving member only needs to change the rotation direction to enable the pushing member 2 to rotate reversely, so that the pushing member moves towards the direction far away from the bearing, and the detachment is completed. In this embodiment, the pushing element 2 can drive the mounting element 1 to move together through the snap ring 24. Snap ring 24 is installed in the one side that cooperation screw hole 21 is close to the bearing, and when the one side that supports the thrust piece 2 and is close to the installed part 1, snap ring 24 can take place the touching with installed part 1 to promote the direction activity of installed part 1 together towards keeping away from the bearing.

The mounting member 1 may be more stable in mounting by being screwed with the output shaft in a specific application, and the snap ring 24 may also move the mounting member 1. Support and push away piece 2 when rotating snap ring 24 and the contact of installed part 1, snap ring 24 can compress tightly with the butt of installed part 1, and this makes snap ring 24 can drive installed part 1 along with supporting and push away a 2 co-rotations to make installed part 1 and output shaft separate gradually, finally accomplish the dismantlement.

In a specific application, the cross-sectional area of the bearing is large, and if the contact area of the pushing part 2 and the bearing is too small, the stress can be concentrated too much. Therefore, in an embodiment of the present application, one end of the pushing member 2 facing the bearing is provided with a pushing portion 25 surrounding the matching threaded hole 21, and the pushing portion 25 is configured to abut against the bearing when the pushing member 2 moves towards the bearing on the output shaft along the axial direction of the output shaft.

In the embodiment, the pushing portion 25 surrounds the matching threaded hole 21, and the pushing portion 25 extends towards the outside, so that the contact area between the pushing member 2 and the bearing is increased. The pushing part 25 is arranged on the pushing part 2 in an extending mode towards the outside, so that the pushing force is more dispersed when the pushing part 2 pushes the bearing, and the loss possibly suffered by the bearing is reduced.

All possible combinations of the technical features of the above embodiments may not be described for the sake of brevity, but should be considered as within the scope of the present disclosure as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent application shall be subject to the appended claims.

Claims

1. A bearing mounting device for urging a bearing on an output shaft of a transmission case to a mounting position in an axial direction of the output shaft of the transmission case, the bearing mounting device comprising:

2. The bearing mounting arrangement as set forth in claim 1 wherein said mounting member has a mounting threaded bore extending therethrough in an axial direction of said output shaft, said mounting member being threadably connected to said output shaft by means of said mounting threaded bore.

3. The bearing mounting apparatus according to claim 2, wherein the mounting member includes a main body portion provided with the mounting screw hole and a first connecting portion provided at an end of the main body portion remote from the bearing;

the drive assembly further comprises a driver which is in driving connection with the first connecting part so as to drive the mounting part to rotate relative to the output shaft.

4. A bearing mounting apparatus according to claim 3, wherein a side of the first connecting portion facing the main body portion is provided with a first end surface for covering an end of the mounting threaded hole, and the first end surface of the first connecting portion is provided with a positioning portion for protruding into the mounting threaded hole, the positioning portion being adapted to abut against the output shaft when the mounting member is located at a predetermined position.

5. A bearing mounting apparatus according to claim 3, wherein the main body portion is provided with a plurality of first screw holes, and the first connecting portion is provided with a plurality of second screw holes corresponding one-to-one to the first mounting holes;

6. The bearing mounting apparatus of claim 1, further comprising a second connecting portion detachably connected to an end of the pushing member away from the bearing, and the driving member is connected to a side of the second connecting portion away from the pushing member.

7. The bearing mounting apparatus as claimed in claim 6, wherein the pushing member has a plurality of insertion holes facing the second connecting portion, the second connecting portion has a plurality of insertion rods corresponding to the insertion holes one by one, and each insertion rod is inserted into the corresponding insertion hole.

8. The bearing mounting apparatus as claimed in claim 1, wherein an annular mounting groove is provided on an inner side wall of the mating threaded hole, and the annular mounting groove is located on a side of the mating threaded hole close to the bearing;

9. The bearing mounting apparatus of claim 1, wherein an end of the abutting member facing the bearing is provided with an abutting portion surrounding the mating threaded hole, and the abutting portion is configured to abut against the bearing when the abutting member moves toward the bearing on the output shaft in an axial direction of the output shaft.

10. A gearbox production arrangement comprising a bearing mounting arrangement according to any one of claims 1 to 9.