CN212985961U

CN212985961U - Vibration damper with split type gear sleeve

Info

Publication number: CN212985961U
Application number: CN202020738419.8U
Authority: CN
Inventors: 杨明; 丁衡俊
Original assignee: Cnc Driveline Technology Co ltd
Current assignee: Cnc Driveline Technology Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-04-16
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a vibration damper with split type tooth cover, include: the vibration damping device comprises a vibration damping body, wherein a gear sleeve mounting hole is formed in the axis of the vibration damping body, and inner tooth grooves are uniformly formed in the wall of the gear sleeve mounting hole; the middle part of the split type gear sleeve is provided with a connecting hole and is coaxially arranged in the gear sleeve mounting hole, the outer side of the split type gear sleeve is provided with a disc edge perpendicular to the axis, and the disc edge is provided with an outer gear key matched with the inner gear groove; and the elastic hoop is arranged in the gear sleeve mounting hole and tightly clamps the split gear sleeve in the gear sleeve mounting hole. The utility model discloses utilize split type tooth cover as transfer mounting structure, solved the damping device limit and turned round the inconvenient problem of dismouting that the back bolt installation hole of stepping down and flywheel fixing bolt dislocation caused of skidding, simple structure, the good reliability, cost of maintenance is low.

Description

Vibration damper with split type gear sleeve

Technical Field

The utility model relates to an automobile parts technical field, in particular to vibration damper with split type tooth cover.

Background

The gear sleeve plays an important role in an automobile transmission system, and is connected with an input shaft of a gearbox through internal teeth. Most of tooth cover among the prior art is monolithic structure, and in the current damping device who has the limit function of turning round, because the relation of its structure, there is the problem that fastening bolt and tooth cover reserved installation abdication hole limit dislocation after the limit is turned round and is skidded, the dismouting of being not convenient for. And the overall structure tooth sleeve has high maintenance cost, and the whole vibration damper assembly can only be replaced when replaced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a vibration damper with split type tooth cover, simple structure, the dismouting of being convenient for.

According to the utility model discloses a damping device of first aspect embodiment includes: the vibration damping device comprises a vibration damping body, wherein a gear sleeve mounting hole is formed in the axis of the vibration damping body, and inner tooth grooves are uniformly formed in the wall of the gear sleeve mounting hole; the middle part of the split type gear sleeve is provided with a connecting hole and is coaxially arranged in the gear sleeve mounting hole, the outer side of the split type gear sleeve is provided with a disc edge perpendicular to the axis, and the disc edge is provided with an outer gear key matched with the inner gear groove; and the elastic hoop is arranged in the gear sleeve mounting hole and tightly clamps the split gear sleeve in the gear sleeve mounting hole.

According to the utility model discloses vibration damper with split type tooth cover has following beneficial effect at least: utilize split type tooth cover as transfer mounting structure, solved vibration damper limit turn round after skidding bolt installation hole of stepping down and the inconvenient problem of dismouting that flywheel fixing bolt dislocation caused, simple structure, the good reliability, cost of maintenance is low.

According to some embodiments of the utility model, be equipped with the spread groove with input shaft in the connecting hole.

According to some embodiments of the utility model, the annular is provided with the installation hole of stepping down on the dish edge.

According to some embodiments of the utility model, the damping body includes the initiative end and the passive end of coaxial setting, fixedly connected with centre gripping subassembly is served to the initiative, serve fixedly connected with dish passively, the dish centre gripping is in on the centre gripping subassembly.

According to the utility model discloses a some embodiments, the initiative is served and is equipped with a plurality of bolt holes.

According to some embodiments of the utility model, the centre gripping subassembly comprises punch holder and lower plate, the dish presss from both sides the punch holder with between the lower plate, the punch holder with be connected through the connecting piece between the lower plate.

According to some embodiments of the invention, the connector is a rivet or a bolt.

According to the utility model discloses a some embodiments, the circumference side of dish shape dish is equipped with the lug that two opposition set up, the opposition is provided with two damping spring round dish week side on the initiative is served, damping spring's a pot head is established on the initiative is served, the lug centre gripping is two between the damping spring.

According to some embodiments of the present invention, an innerspring is further provided within the damping spring.

According to some embodiments of the utility model, the elastic hoop circle is equipped with two, split type tooth cover is fixed two between the elastic hoop circle.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic overall structure diagram of an embodiment of the present invention;

FIG. 2 is a schematic view of a separated structure of the split type gear sleeve and the vibration damping main body shown in FIG. 1;

FIG. 3 is an exploded view of the entire structure shown in FIG. 1;

fig. 4 is a schematic view of a separation structure of the clamping assembly and the disc-shaped disc according to an embodiment of the present invention;

fig. 5 is a schematic structural view of the split type gear sleeve shown in fig. 1.

Reference numerals:

the damping device comprises a damping body 100, an active end 110, a gear sleeve mounting hole 111, a damping spring 112, a passive end 120, a clamping assembly 130, an upper clamping plate 131, a lower clamping plate 132, a disc-shaped disc 140, a lug 141, a split gear sleeve 200, an elastic hoop 300, a disc edge 310, an outer gear key 311, a mounting abdicating hole 312 and a connecting groove 320

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.

With reference to fig. 1 to 5, a vibration damping device with a split type sleeve gear according to an embodiment of the present invention will be described below.

As shown in fig. 1 to 5, a vibration damping device with a split type gear sleeve comprises a vibration damping body 100, a split type gear sleeve 200 and an elastic hoop 300 for fixing the split type gear sleeve 200 on the vibration damping body 100, wherein a gear sleeve mounting hole 111 is arranged inside the axis center of the vibration damping body 100, the aperture of the gear sleeve mounting hole 111 is larger than the shaft diameter of an input shaft, inner tooth grooves are uniformly arranged on the hole wall of the gear sleeve mounting hole 111, a connecting hole 320 is arranged in the middle of the split type gear sleeve 200, the connecting hole 320 is used for connecting with the external input shaft, the split type gear sleeve 200 is coaxially mounted in the gear sleeve mounting hole 111, a disc rim 310 perpendicular to the axis is arranged on the outer side of the gear sleeve mounting hole, namely a disc rim 310 is arranged on the circumferential outer side, an outer tooth key 311 matched with the inner tooth grooves is arranged on the disc rim 310, an outer edge, namely the disc rim 310 of the split type gear sleeve, the elastic hoop ring 300 is arranged in the gear sleeve mounting hole 111, blocks the joint of the split gear sleeve 200 and the gear sleeve mounting hole 111, and clamps the split gear sleeve 200 in the gear sleeve mounting hole 111, so that the split gear sleeve 200 can be quickly and fixedly mounted on the vibration reduction body 100.

In specific implementation, the installation process is as follows: firstly, the split type gear sleeve 200 is sleeved on the input shaft, the input shaft is inserted into the shaft center of the vibration damping body 100, namely the gear sleeve mounting hole 111, then the split type gear sleeve 200 is moved along the axial direction of the input shaft, so that the external key teeth on the disc edge 310 of the split type gear sleeve 200 are gradually matched with the internal tooth grooves of the gear sleeve mounting hole 111 in the vibration damping body 100, after the axial installation is completed, the split type gear sleeve 200 is fixed in the vibration damping body 100 through the elastic hoop ring 300, and therefore the fixed connection process of the vibration damping device and the input shaft is achieved.

Whole process is simple and convenient, when needs are dismantled, at first take out elasticity hoop 300, release split type facing 200 along the input shaft axial afterwards, leave damping body 100, pull down damping body 100 from the input shaft, it is very convenient, the facing mounting hole 111 of installation split type facing 200 has enlarged the axial aperture of damping body 100, can easily overlap on the input shaft, and damping body 100's quality is great, if directly cup joint on the input shaft, it is difficult to aim at, produce wearing and tearing easily, produce the influence to the input shaft. In addition, in the damping device on the market, when damping device takes place to act on, damping device's active end 110 and passive end 120 with produce relative movement, there is the problem of limit dislocation in the fastening bolt after the limit is turned round and skidded this moment and damping device's the hole of stepping down, need return just again and can realize the dismouting problem, and adopt split type structure, simple and convenient mounting means, it can not be so complicated to aim at the installation, if adopt overall structure, it leads to whole device to change because of connecting the tooth key damage very easily to produce, greatly reduced damping device's cost of maintenance.

In some embodiments of the present invention, a connecting groove connected to the input shaft is provided in the connecting hole 320, and the connecting groove is a spline groove, and is used for connecting the split type gear sleeve 200 to the input shaft, and is a connecting structure of the vibration damping device and the input shaft. The key tooth structure satisfies the function of transmitting torque in the vibration damping device, and is transmitted to the split type gear sleeve 200 by the input shaft and then transmitted to the vibration damping main body by the split type gear sleeve 200.

In some embodiments of the utility model, the annular is provided with the installation hole 312 of stepping down on the dish edge 310, and the installation hole 312 of stepping down is convenient for the installation production process of dish edge 310, can reduce the quality of dish edge 310 simultaneously, improves operable space.

The utility model discloses an in some embodiments, the damping main part includes the active end 110 and the passive end 120 of coaxial setting, fixedly connected with clamping component 130 on the active end 110, fixed connection's mode can be bolted connection, the passive end 120 centre gripping is on clamping component 130, clamping component 130 utilizes the contact surface of the tight contact in each other top, produce the friction between the contact surface, when the relative active end 110 of passive end 120 rotates, the friction effect between clamping component 130 and the passive end 120 converts the kinetic energy of passive end 120 into friction heat energy, thereby reach the limit and turn round and reduce torsional vibration's function.

Specifically, a plurality of bolt holes are formed in the driving end 110, the clamping assembly 130 is fixedly connected with the driving end 110 through the bolt holes, the clamping assembly 130 is composed of an upper clamping plate 131 and a lower clamping plate 132, the upper clamping plate 131 and the lower clamping plate 132 can be friction discs made of friction materials, the disc-shaped disc 140 is clamped between the upper clamping plate 131 and the lower clamping plate 132, the upper clamping plate 131 and the lower clamping plate 132 are connected through a connecting piece, the connecting piece provides tension force between the upper clamping plate 131 and the lower clamping plate 132, and clamping force of the clamping assembly 130 and the disc-shaped disc 140 is adjusted through tightness degree so as to properly adjust damping torque limiting capacity of the damping main body on the input shaft.

More specifically, the connecting member is preferably a rivet, the upper clamping plate 131 and the lower clamping plate 132 are fixedly connected together by the rivet, and the connecting member may also be a connecting bolt, and the connecting bolt is inserted between the upper clamping plate 131 and the lower clamping plate 132 to tension the upper clamping plate 131 and the lower clamping plate 132 by the bolt. In addition, other connecting parts, such as connecting structures of tension springs or screws, can also be used to clamp the disc springs by the upper clamping plate 131 and the lower clamping plate 132. The gear sleeve mounting hole 111 is arranged on the driving end 110, the driving end 110 is mounted on the input shaft through the split gear sleeve 200, the input shaft drives the driving end 110 to rotate, the driving end 110 transmits torque to the driven end 120, and the clamping assembly 130 and the disc-shaped disc 140 generate vibration reduction and torque limitation effects in the transmission process.

In some embodiments of the present invention, at least two evenly distributed lugs 141 are disposed on the circumferential side of the disk 140, a plurality of damping springs 112 are disposed on the driving end 110, the damping springs 112 are disposed around the circumferential side of the disk 140, a sleeve of the damping springs 112 is disposed on the driving end 110, and the two sides of the lugs 141 are abutted between the two damping springs 112 to reduce the vibration by the damping springs 112. In this embodiment, two lugs 141 are oppositely arranged on the disk-shaped disc 140, two damping springs 112 are arranged on the driving end 110, the two lugs 141 are abutted between the two damping springs 112, and when the disk-shaped disc 140 rotates relative to the driving end 110, the damping springs 112 play a certain buffering role, so that the torsion impact is avoided, and the whole device is protected.

Specifically, an internal spring is further arranged in the damping spring 112, and the internal spring can increase the damping effect of the damping spring 112 and meet the damping requirement.

In some embodiments of the present invention, the elastic band 300 is provided with two, one of which is clamped inside the gear sleeve mounting hole 111, and after the split gear sleeve 200 is inserted into the gear sleeve mounting hole 111, the other of which fixes the split gear sleeve 200 in the gear sleeve mounting hole 111, thereby fixing the split gear sleeve 200.

When the disk 140 and the clamping assembly 130 rotate relatively due to torque-limiting slip, and the mounting abdicating hole 312 on the disk edge 310 of the split type gear sleeve 200 is dislocated with the fixing screw on the driving end 110 to cause difficulty in assembly and disassembly, the elastic hoop ring 300 is removed, so that the split type gear sleeve 200 is separated from the vibration damper body, and a sufficient abdicating space is provided for a screw assembly and disassembly tool. In addition, when the split type gear sleeve 200 is damaged, only the split type gear sleeve 200 needs to be replaced, the whole vibration damper does not need to be replaced, and the maintenance cost of parts is reduced.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. The utility model provides a vibration damper with split type tooth cover which characterized in that includes:

the damping device comprises a damping body (100), wherein a gear sleeve mounting hole (111) is formed in the axis of the damping body (100), and inner tooth grooves are uniformly formed in the wall of the gear sleeve mounting hole (111);

the split type gear sleeve (200) is provided with a connecting hole (320) in the middle and is coaxially mounted in the gear sleeve mounting hole (111), a disc edge (310) perpendicular to the axis is arranged on the outer side of the split type gear sleeve (200), and an outer gear key (311) matched with the inner gear groove is arranged on the disc edge (310);

and the elastic hoop (300) is arranged in the gear sleeve mounting hole (111) and clamps the split gear sleeve (200) in the gear sleeve mounting hole (111).

2. The vibration damping device with the split type gear sleeve is characterized in that a connecting groove connected with an input shaft is formed in the connecting hole (320).

3. The vibration damping device with the split type gear sleeve is characterized in that the disc edge (310) is annularly provided with a mounting and avoiding hole (312).

4. The vibration damping device with the split type gear sleeve is characterized in that the vibration damping body (100) comprises an active end (110) and a passive end (120) which are coaxially arranged, a clamping component (130) is fixedly connected to the active end (110), a disc-shaped disc (140) is fixedly connected to the passive end (120), and the disc-shaped disc (140) is clamped on the clamping component (130).

5. The vibration damping device with the split type gear sleeve is characterized in that a plurality of bolt holes are formed in the driving end (110).

6. The vibration damping device with a split type gear sleeve as claimed in claim 4, wherein the clamping assembly (130) is composed of an upper clamping plate (131) and a lower clamping plate (132), the disc-shaped disc (140) is clamped between the upper clamping plate (131) and the lower clamping plate (132), and the upper clamping plate (131) and the lower clamping plate (132) are connected through a connecting piece.

7. The vibration damping device with the split type gear sleeve is characterized in that the connecting piece is a rivet or a bolt.

8. The vibration damping device with the split type gear sleeve is characterized in that two oppositely arranged lugs (141) are arranged on the circumferential side of the disc-shaped disc (140), two damping springs (112) around the circumferential side of the disc-shaped disc (140) are oppositely arranged on the driving end (110), one end of each damping spring (112) is sleeved on the driving end (110), and the lugs (141) are clamped between the two damping springs (112).

9. The vibration damper with split type gear sleeve as claimed in claim 8, wherein an inner spring is further arranged in the damping spring (112).

10. The vibration damping device with a split type gear sleeve as claimed in any one of claims 1 to 9, wherein there are two elastic bands (300), and the split type gear sleeve (200) is fixed between the two elastic bands (300).