CN210461452U

CN210461452U - Connecting sleeve for transmission joint and transmission assembly

Info

Publication number: CN210461452U
Application number: CN201921379863.9U
Authority: CN
Inventors: 宁耕; 沈明; 曹更春; 郑尚华
Original assignee: Tianjin Huanyu Rubber & Plastic Co ltd
Current assignee: Tianjin Huanyu Rubber & Plastic Co ltd
Priority date: 2019-08-23
Filing date: 2019-08-23
Publication date: 2020-05-05
Anticipated expiration: 2029-08-23

Abstract

The utility model discloses a connecting sleeve for a transmission joint, the transmission joint includes female, public spare and dust cover, the female is located the tip of input shaft, public spare is located the tip of output shaft, the female includes the casing, public spare includes antifriction bearing, antifriction bearing includes a plurality of rollers, insert the casing by the open end of casing, the one end of dust cover is fixed on the output shaft, the other end of dust cover passes through the connecting sleeve to be fixed on the female, the connecting sleeve includes the foundation ring and sets up the outer lane in the foundation ring outer fringe, the foundation ring includes a plurality of interval distribution's concave part and convex part, set up limit structure on the foundation ring, limit structure sets up at the inner circle department towards the foundation ring inner wall of roller direction, the roller is arranged in the concave part of foundation ring and the outer lane cambered surface of roller contacts with limit structure; the utility model also discloses a derailleur subassembly. The utility model discloses a adapter sleeve is equipped with limit structure, prevents that the roller from droing from female end portion.

Description

Connecting sleeve for transmission joint and transmission assembly

Technical Field

The utility model relates to a joint of derailleur especially relates to a adapter sleeve and derailleur subassembly that is used for derailleur to connect.

Background

The drive shaft is connected between a gear box and a wheel of the motor vehicle, the drive shaft comprises a fixed end and a telescopic end, the end connected with the gear box is the telescopic end, and the end connected with a hub of the wheel is the fixed end. The telescoping end of the driveshaft includes an input shaft, an output shaft, and a driveshaft joint (also known as a constant velocity joint, abbreviated CVJ) connecting the input shaft and the output shaft. The driveshaft adapter includes a female member at an end of the input shaft and a male member at an end of the output shaft. The female part of the input shaft end comprises a housing, which may be a three-cylinder housing, and the male part of the output shaft end comprises a rolling bearing adapted to be inserted into the housing via an open end of the housing of the female part. Power is transmitted to the gear box from the engine or the motor, is transmitted to the input shaft and the female part through the gear box, is transmitted to the male part through the female part, and rotates at the same speed with the male part. The male part is also able to slide axially and oscillate angularly inside the female part, the rolling bearing of the male part rolling when the male part slides with respect to the female part. The pivot angle of the male part and the female part is generally between 0 ° and 25 °.

Generally, the function of dust Boots (the english name Boots) is to protect the drive shaft joints from muddy water, sand and/or any other contaminants; a closed space is formed so that grease does not leak in the space to sufficiently lubricate the operation between the bearing and the housing. The dust cap is generally in the shape of a hollow trumpet comprising a first open end, a bellows cylinder and a second open end, wherein the opening of the first open end is larger than the opening of the second open end. After the dust cover is sleeved on the driving shaft joint, the opening of the first opening end of the dust cover is sleeved at the opening end of the shell of the female part, and the opening of the second opening end of the dust cover is sleeved at the output shaft.

The male part at the end of the output shaft comprises a rolling bearing comprising a plurality of wheel-shaped rollers, typically 3.

In the prior art, usually dust caps are fixed to the female part by means of a coupling sleeve, the dust cap having a peripheral shoulder, the surface of which facing the second end of the dust cap is provided with angularly offset recesses open towards the second end, the interior of each recess forming a seat with a concave bearing surface, adapted to receive the rollers in a partially reciprocal manner, and adapted to form a surface to receive the rollers in a thrust contact. However, in the process of installing the chassis of the whole vehicle, the male part and the fixed end universal joint connected with the male part into a whole are easy to separate from the female part under the action of gravity, so that the parts are damaged.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a adapter sleeve and derailleur subassembly for derailleur connects to solve the technical problem who mentions in the background art.

In order to achieve the above object, the present invention provides a connecting sleeve and transmission assembly for a transmission joint, which has the following specific technical scheme:

the utility model provides a adapter sleeve for derailleur connects, the derailleur connects includes female, public piece and dust cover, the female is located the tip of input shaft, public piece is located the tip of output shaft, female includes the casing, public piece includes antifriction bearing, antifriction bearing includes a plurality of rollers, insert in the casing via the open end of the casing of female, the one end of dust cover is fixed on the output shaft, the other end of dust cover passes through the adapter sleeve to be fixed on female, the adapter sleeve includes the foundation ring and sets up the outer lane in the foundation ring outer fringe, the foundation ring includes a plurality of interval distribution's concave part and convex part, set up limit structure on the foundation ring, limit structure sets up the inner circle department at the foundation ring inner wall towards the roller direction, the concave part of foundation ring and the outer lane cambered surface and the limit structure contact of roller are arranged in to the roller, limit structure prevents that the.

Furthermore, the limiting structure is a convex block protruding out of the inner wall of the bottom ring, the convex block is arranged at the junction of the concave part and the convex part of the bottom ring, and when the male part moves towards the port of the female part, the roller is arranged in the concave part of the bottom ring, and the outer ring cambered surface of the roller is in contact with the convex block.

Furthermore, the convex block is a wedge-shaped block with a narrow upper part and a wide lower part, and the wedge-shaped block is provided with a curved surface matched with the cambered surface of the outer ring of the roller.

Furthermore, the convex block is a strip-shaped block body, and the strip-shaped block body is provided with a curved surface matched with the outer ring cambered surface of the roller.

Furthermore, the convex block is a cylinder with a crescent-shaped cross section, and the cylinder is provided with a curved surface matched with the outer ring cambered surface of the roller.

Furthermore, a plurality of groups of rib plates are arranged on the outer wall of the bottom ring far away from the roller direction, and each group of rib plates is arranged opposite to each limit structure.

The utility model provides a speed changer subassembly, includes female, public piece and dust cover, and the female is located the tip of input shaft, and public piece is located the tip of output shaft, and the female includes the casing, and public piece includes antifriction bearing, and antifriction bearing includes a plurality of rollers, inserts in the casing via the open end of the casing of female, and the one end of dust cover is fixed on the output shaft, and the other end of dust cover passes through the adapter sleeve to be fixed on the female, and the adapter sleeve is foretell adapter sleeve that is used for the derailleur to connect.

Further, the dust cover includes the main part, and the main part includes first open end, ripple barrel and second open end in proper order, and the opening of first open end is less than the opening of second open end, and first open end is fixed on the mounting groove of output shaft, and the second open end passes through the adapter sleeve to be fixed on the mounting groove of female.

Further, the outer wall of outer lane is circular, and the inner wall of outer lane includes a plurality of interval distribution's concave recess and bulge, and the concave recess of outer lane corresponds with the concave part of foundation ring, and the bulge of outer lane corresponds with the convex part of foundation ring.

Furthermore, the concave part of the inner wall of the outer ring is provided with a first fixed bead along the circumferential direction of the outer ring, the inner walls of the outer rings on two sides of the first fixed bead are provided with a second fixed bead along the radial height of the outer ring, the first fixed bead is higher than the second fixed bead along the radial height of the outer ring, and the outer wall of the open end of the female part is provided with mounting grooves matched with the first fixed bead and the second fixed bead respectively.

The utility model discloses a adapter sleeve and derailleur subassembly for derailleur connects has following advantage:

the connecting sleeve of the utility model is provided with a limiting structure, and the outer ring cambered surface of the roller is contacted with the limiting structure in the whole vehicle chassis mounting process, so that on one hand, the roller is prevented from being separated from the female part; on the other hand, limit structure can play good cushioning effect.

Further, the adapter sleeve set up many gussets, the setting that limit structure and gusset are relative is on preceding, two back sides of foundation ring, when the roller breaks away from buffer structure, the intensity of adapter sleeve has been strengthened to the gusset, also plays the spacing effect of reinforcing simultaneously.

Finally, derailleur subassembly simple structure, fixed firm, long service life.

Drawings

Fig. 1 is a perspective view of a first embodiment of the connecting sleeve of the present invention;

fig. 2 is a front view of a first embodiment of the connecting sleeve of the present invention;

FIG. 3 is a cross-sectional view taken along plane A-A' of FIG. 2;

FIG. 4 is a cross-sectional view taken along plane B-B' of FIG. 2;

fig. 5 is a perspective view of a second embodiment of the connecting sleeve of the present invention;

fig. 6 is a perspective view of a third embodiment of the connecting sleeve of the present invention;

FIG. 7 is a cross-sectional view of the transmission assembly in a compressed state;

FIG. 8 is a cross-sectional view of the transmission assembly in a stretched condition.

The reference numbers in the figures illustrate: 1. connecting sleeves; 11. an outer ring; 111. a first fixed rib; 112. a second stationary ledge; 113. an outer fixing groove; 114. an aperture; 12. a bottom ring; 121. a rib plate; 13. a limiting structure; 2. a dust cover; 21. a first open end; 22. a corrugated cylinder; 23. a second open end; 3. a master; 31. an input shaft; 4. an output shaft; 5. and (4) a roller.

Detailed Description

In order to better understand the purpose, structure and function of the present invention, the following description is made in detail with reference to the accompanying drawings for a connecting sleeve and a transmission assembly for a transmission joint of the present invention.

As shown in fig. 1 to 4, the connecting sleeve for a transmission joint of the present invention comprises a female member 3, a male member and a dust cover 2, the female member 3 is located at the end of an input shaft 31, the male member is located at the end of an output shaft 4, the female member 3 comprises a housing, the male member comprises a rolling bearing, the rolling bearing comprises a plurality of rollers 5, the rolling bearing is inserted into the housing through the open end of the housing of the female member 3, one end of the dust cover 2 is fixed on the output shaft 4, the other end of the dust cover 2 is fixed on the female member 3 through the connecting sleeve 1, the connecting sleeve 1 comprises a bottom ring 12 and an outer ring 11 arranged at the outer edge of the bottom ring 12, the bottom ring 12 comprises a plurality of concave portions and convex portions distributed at intervals, the bottom end of the outer ring 11 is fixedly connected with the outer edge of the bottom ring 12, the outer wall of the outer ring 11 is circular, the inner wall of the outer ring 11 is, the recessed portions of the outer race 11 correspond to the raised portions of the base race 12, and the raised portions of the outer race 11 correspond to the recessed portions of the base race 12.

The bottom ring 12 is provided with a limiting structure 13, the limiting structure 13 is arranged at the inner ring of the inner wall of the bottom ring 12 facing the direction of the roller 5, when the male part moves towards the port of the female part 3, the roller 5 is arranged in the concave part of the bottom ring 12, the outer ring cambered surface of the roller 5 is contacted with the limiting structure 13, and the limiting structure 13 can prevent the roller 5 from being separated from the female part 3. In the whole vehicle chassis installation process, the limiting structure 13 fills the gap between the outer ring cambered surface of the roller 5 and the connecting sleeve 1, so that a plurality of half circumferences of the roller 5 are always positioned in the female part 3. The shape of the under ring 12 conforms to the shape of the end face of the port of the female member 3.

Limiting structure 13 includes the multiunit, as shown in fig. 1-4, limiting structure 13 includes three groups, and every group limiting structure 13 includes two, and limiting structure 13 is the lug of protrusion foundation ring inner wall, and the lug setting is in the juncture of 12 concave parts of foundation ring and convex part, and in whole car chassis installation, when public piece moved to female 3 ports, roller 5 placed in the concave part of foundation ring 12 and the outer lane cambered surface of roller 5 contacted with the lug.

As shown in fig. 1-4, the projection is a wedge-shaped block with a narrow top and a wide bottom, and the wedge-shaped block is provided with a curved surface matched with the outer ring arc surface of the roller 5, as shown in fig. 7, when the male part moves towards the port of the female part 3, the roller 5 is placed in the concave part of the bottom ring 12, and the outer ring arc surface of the roller 5 is contacted with the wedge-shaped block, so that the further movement of the roller 5 is limited.

In order to enhance the strength of the limiting structure 13 and the overall strength of the connecting sleeve 1, as shown in fig. 5, the protruding block is a strip-shaped block with a triangular or trapezoidal longitudinal section, and the strip-shaped block is provided with a curved surface matched with the outer ring arc surface of the roller 5. Because the transverse width of the limiting structure 13 is wider, the movement of the roller 5 is more favorably limited, and the strength of the connecting sleeve 1 can be enhanced.

Further, as shown in fig. 6, the projection is a cylinder with a crescent cross section, and the cylinder is provided with a curved surface matched with the outer ring arc surface of the roller 5.

In order to enhance the strength of the connecting sleeve 1, a plurality of groups of rib plates 121 are arranged on the rear surface of the foundation ring 12, and each group of rib plates 121 is arranged opposite to each limiting structure 13.

The transmission assembly is capable of transmitting rotational motion of a shaft of the gear box to the wheel shaft in a vehicle transmission. As shown in fig. 7-8, the transmission assembly includes a female member 3, a male member and a dust cover 2, the female member 3 is located at an end of the input shaft 31, the male member is located at an end of the output shaft 4, the female member 3 includes a housing, which may be a three-column casing. The male part comprises a rolling bearing comprising a plurality of rollers 5 adapted to be inserted into the housing of the female part 3 via the open end of the housing. Female 3 can drive public piece constant speed and rotate, and public piece can also be in female 3 axial slip and pivot angular motion, and public piece rolls for female 3 antifriction bearing of public piece when sliding, and 2 one end of dust cover are fixed on female 3 through adapter sleeve 1, and the other end snap-on of dust cover 2 is on the mounting groove of output shaft 4.

The male rolling bearing comprises a plurality of rollers 5, where the shape of the rollers 5 may be wheel-shaped and the number of rollers 5 may be 3. The 3 rollers 5 are evenly distributed around the outer wall of the end of the output shaft 4 at intervals of 120 °. Each roller 5 has a front surface, a rear surface, and an outer peripheral surface interconnecting the front and rear surfaces. The rear surface of the roller 5 is the surface of the roller 5 facing the output shaft 4. The structure of the roller 5 is known in the art and will not be described in detail here.

When the female member 3 is rotated by the input shaft 31, this rotation is transmitted to the male member and the output shaft 4 through the rolling bearing, and the output shaft 4 is rotated at a constant speed.

The housing of the female part 3 comprises cylindrical protrusions in correspondence with the rollers 5 of the rolling bearing, between two adjacent cylindrical protrusions a cylindrical recess is provided. If the rolling bearing comprises 3 rollers 5, the housing comprises 3 cylindrical protrusions and 3 cylindrical recesses between the 3 cylindrical protrusions, respectively, also referred to as a three-cylinder housing. The inner side wall of each cylindrical boss forms a track extending in the axial direction of the housing, and the cross-sectional shape of the track is an arc complementary to the generating line of the rotation generating roller 5 about the central axis. Besides, the inner wall of the housing of the female member 3 depends on the installation condition of the roller 5.

Dust cover 2 includes the main part, and the main part includes first open end 21, bellows body 22 and second open end 23 in proper order, and the opening of first open end 21 is less than the opening of second open end 23. The dust cap 2 may be made of an elastomeric material, which may include a thermoplastic Elastomer (TPE), such as a thermoplastic PolyEster Elastomer (TPEE). The first opening end 21 is fixed on the mounting groove of the output shaft 4, and the second opening end 23 is fixed on the female member 3 through the connecting sleeve 1.

The connection sleeve 1 may be made of an elastomeric material, which may comprise a thermoplastic elastomer, such as a thermoplastic polyester elastomer. The connecting sleeve 1 comprises a bottom ring 12 and an outer ring 11 arranged on the outer edge of the bottom ring 12, the shape of the bottom ring 12 is the same as that of the open end of the female part 3, and comprises a plurality of concave parts and convex parts distributed at intervals, the concave parts and the convex parts are determined according to the number and the shape of the rollers 5, the bottom end of the outer ring 11 is fixedly connected with the outer edge of the bottom ring 12, the outer wall of the outer ring 11 is circular, the inner wall of the outer ring 11 is consistent with the outer edge of the bottom ring 12, the inner wall of the outer ring 11 comprises a plurality of concave parts and convex parts distributed at intervals, the concave parts of the outer ring 11 correspond to the concave parts of the bottom ring 12, and the convex parts of the.

The concave recess of 11 inner walls in outer lane sets up first fixed bead 111 respectively along 11 circumference in the outer lane, set up the fixed bead 112 of second on the inner wall of the outer lane 11 of first fixed bead 111 both sides respectively, first fixed bead 111 is along the radial height ratio of the fixed bead 112 of second along 11 radial height in outer lane, set up the mounting groove that matches with the fixed bead 111 of first fixed bead 111 and second on the outer wall of female 3 open ends, during the installation, first fixed bead 111 and the fixed bead 112 of second can be arranged in the mounting groove that corresponds, outer lane 11 can overlap on the mounting groove of female 3 open ends and the end face contact of end 12 and female 2 open ends.

Set up outer fixed slot 113 on the outer wall of outer lane 11, set up the muscle that matches with outer fixed slot 113 on the inner wall of the second open end 23 of dust cover 2, second open end 23 can cup joint on the outer wall of outer lane 11, and the muscle is arranged in outer fixed slot 113.

In order to reduce sink marks and reduce the weight of parts in the injection molding process, the protruding part of the outer ring 11 is provided with a hole 114, and the hole 114 is a blind hole.

The bottom ring 12 is provided with a limiting structure 13, the limiting structure 13 is arranged at the inner ring of the inner wall of the bottom ring 12 facing the direction of the roller 5, when the port of the male element and the female element 3 moves, the roller 5 is arranged in the concave part of the bottom ring 12, the outer ring cambered surface of the roller 5 is contacted with the limiting structure 13, and the limiting structure 13 can limit the movement of the roller 5 to the end part of the female element 3.

Limiting structure 13 includes the multiunit, as shown in fig. 1-4, limiting structure 13 includes three groups, and every group limiting structure 13 includes two, and limiting structure 13 is the lug of protrusion foundation ring inner wall, and the lug setting is in the juncture of foundation ring 12 concave part and convex part, and when public piece moved to female 3 port, roller 5 placed in the concave part of foundation ring 12 and the outer lane cambered surface of roller 5 contacted with the lug respectively.

As shown in fig. 1-4, each limiting structure 13 is a wedge-shaped block with a narrow top and a wide bottom, and the wedge-shaped block is provided with a curved surface matched with the outer ring arc surface of the roller 5, as shown in fig. 7, when the male part moves towards the port of the female part 3, the roller 5 is placed in the concave part of the bottom ring 12, and the outer ring arc surface of the roller 5 is contacted with the wedge-shaped block, so that the further movement of the roller 5 is limited.

Furthermore, the convex block is a cylinder with a crescent-shaped cross section, and the cylinder is provided with a curved surface matched with the outer ring cambered surface of the roller 5.

In order to enhance the strength of the connecting sleeve 1, a plurality of groups of rib plates 121 are arranged on the outer wall of the bottom ring 12 away from the roller 5, and each group of rib plates 121 is arranged opposite to each limiting structure 13.

The connecting sleeve 1 is provided with a limiting structure 13, when the male part moves towards the port of the female part 3, the outer ring surface of the roller 5 is contacted with the limiting structure 13, and on one hand, the roller 5 is prevented from being separated from the female part 3; on the other hand, the limiting structure 13 can play a good role in buffering. The connecting sleeve 1 is provided with a plurality of rib plates 121, the limiting structure 13 and the rib plates 121 are oppositely arranged on the front side and the rear side of the bottom ring 12, and when the roller 5 is separated from the buffer structure, the rib plates 121 reinforce the strength of the connecting sleeve 1 and play a role of resetting. The transmission assembly is simple in structure, firm in fixation and long in service life.

It is to be understood that the present invention has been described with reference to certain embodiments, and that various changes or equivalents may be substituted for elements thereof by those skilled in the art without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of the present application are intended to be covered by the present invention.

Claims

1. A connecting sleeve for a transmission joint comprises a female part (3), a male part and a dust cover (2), wherein the female part (3) is positioned at the end part of an input shaft (31), the male part is positioned at the end part of an output shaft (4), the female part (3) comprises a shell, the male part comprises a rolling bearing, the rolling bearing comprises a plurality of rollers (5) and is inserted into the shell through the open end of the shell of the female part (3), one end of the dust cover (2) is fixed on the output shaft (4), the other end of the dust cover (2) is fixed on the female part (3) through the connecting sleeve (1), the connecting sleeve (1) comprises a bottom ring (12) and an outer ring (11) arranged at the outer edge of the bottom ring (12), the bottom ring (12) comprises a plurality of concave parts and convex parts which are distributed at intervals, a limiting structure (13) is arranged on the bottom ring (12), and the limiting structure (13) is arranged at the inner ring of the inner wall of the bottom ring (12) facing, the roller (5) is arranged in the concave part of the bottom ring (12), the outer ring cambered surface of the roller (5) is contacted with the limiting structure (13), and the limiting structure (13) prevents the roller (5) from being separated from the female part (3).

2. Connecting sleeve for a gearbox coupling according to claim 1, characterised in that the limiting structure (13) is a projection projecting from the inner wall of the bottom ring, the projection is arranged at the intersection of a recess and a projection of the bottom ring (12), when the male part is moved towards the port of the female part (3), the roller (5) is placed in the recess of the bottom ring (12) and the outer ring arc of the roller (5) is in contact with the projection.

3. Connecting sleeve for a gearbox coupling according to claim 2, characterised in that the projection is a wedge-shaped block with a narrow top and a wide bottom, which wedge-shaped block is provided with a curved surface matching the outer ring curved surface of the roller (5).

4. Connecting sleeve for a gearbox coupling according to claim 2, characterised in that the projections are elongate blocks which are provided with a curved surface matching the outer circumferential curved surface of the roller (5).

5. Connecting sleeve for a gearbox coupling according to claim 2, characterised in that the projection is a cylinder with a crescent-shaped cross section, which cylinder is provided with a curved surface matching the curved surface of the outer ring of the roller (5).

6. Connecting sleeve for a gearbox coupling according to claim 2, characterised in that a plurality of sets of ribs (121) are provided on the backing ring (12) in the direction away from the roller (5), each set of ribs (121) being arranged opposite each stop structure (13).

7. A transmission assembly comprising a female part (3), a male part and a dust cover (2), the female part (3) being located at the end of an input shaft (31), the male part being located at the end of an output shaft (4), the female part (3) comprising a housing, the male part comprising a rolling bearing, the rolling bearing comprising a plurality of rollers (5) inserted into the housing via an open end of the housing of the female part (3), one end of the dust cover (2) being fixed on the output shaft (4), the other end of the dust cover (2) being fixed on the female part (3) by means of a connection sleeve (1), characterized in that the connection sleeve (1) is a connection sleeve (1) for a transmission joint according to any one of claims 1-6.

8. The transmission assembly according to claim 7, wherein the dust cover (2) comprises a main body which comprises a first opening end (21), a corrugated cylinder (22) and a second opening end (23) in sequence, the opening of the first opening end (21) is smaller than the opening of the second opening end (23), the first opening end (21) is fixed on the mounting groove of the output shaft (4), and the second opening end (23) is fixed on the mounting groove of the female member (3) through the connecting sleeve (1).

9. A variator assembly as claimed in claim 7 wherein the inner wall of the outer race (11) comprises a plurality of spaced recesses and projections, the recesses of the outer race (11) corresponding to the recesses of the base race (12) and the projections of the outer race (11) corresponding to the projections of the base race (12).

10. The transmission assembly according to claim 9, wherein the recesses of the inner wall of the outer ring (11) are respectively provided with first fixing ribs (111) along the circumferential direction of the outer ring (11), the inner walls of the outer ring (11) on both sides of the first fixing ribs (111) are respectively provided with second fixing ribs (112), the first fixing ribs (111) have a greater height along the radial direction of the outer ring (11) than the second fixing ribs (112) along the radial direction of the outer ring (11), and the outer wall of the open end of the female member (3) is respectively provided with mounting grooves matching with the first fixing ribs (111) and the second fixing ribs (112).