CN213981578U - High-strength bolt for speed reducer of automobile gearbox - Google Patents

Abstract

The utility model discloses a high strength bolt for motor transmission speed reducer, including the spiral shell lid, its characterized in that: the utility model discloses a screw cap, including screw cap, connecting control device, push pedal fixed mounting, push pedal, buckle, push rod and spiral shell lid sliding connection, the inside bearing of spiral shell lid is connected with the column spinner, the below bearing of screw cap is connected with the double-screw bolt, the inside of screw cap is provided with connection control device, connection control device includes two push rods, two the push rod runs through the screw cap, push rod and screw cap sliding connection, the inside of double-screw bolt is provided with radial force offset device, connection control device includes the push pedal, push pedal fixed mounting is in the one end of push rod, the lower extreme of push pedal is provided with the recess, the inside welding of recess has first pressure spring, first pressure spring's other end welding has the buckle, the upper end of double-screw bolt is provided with the draw-in groove, the equal bearing in both sides of push pedal is connected with the head rod, the utility model discloses, have the practicality with can bear the characteristics of very big radial force and axial force.

Description

High-strength bolt for speed reducer of automobile gearbox

Technical Field

The utility model relates to a bolt technical field specifically is a high strength bolt for motor transmission speed reducer.

Background

Bolt: mechanical parts, cylindrical threaded fasteners fitted with nuts. A fastener consisting of a head part and a screw (a cylinder with external threads) needs to be matched with a nut and is used for fastening and connecting two parts with through holes. This form of connection is known as a bolted connection. If the nut is unscrewed from the bolt, the two parts can be separated, so that the bolt connection belongs to detachable connection.

The existing high-strength bolt has poor practicability; meanwhile, the existing high-strength bolt can be subjected to large radial force and axial force, and the forces can cause the fatigue damage of the bolt. Therefore, it is necessary to design a high-strength bolt for a speed reducer of an automobile transmission, which has strong practicability and can bear large radial force and axial force.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength bolt for motor transmission speed reducer to solve the problem that proposes among the above-mentioned background art.

In order to solve the technical problem, the utility model provides a following technical scheme: the utility model provides a high strength bolt for motor transmission speed reducer, includes the spiral shell lid, its characterized in that: the inner bearing of the screw cap is connected with a rotating column, the bearing below the screw cap is connected with a stud, a connection control device is arranged inside the screw cap, the connection control device comprises two push rods, the two push rods penetrate through the screw cap, the push rods are connected with the screw cap in a sliding mode, and a radial force counteracting device is arranged inside the stud; the connection control device aims to separate the screwing-in process of the bolt from the application process of the radial counteracting force and the axial counteracting force by controlling the push rod, and the radial force counteracting device is used for counteracting the axial force applied to a part of the bolt during working, so that the bolt is prevented from being damaged and deformed.

According to the technical scheme, the connection control device comprises a push plate, the push plate is fixedly installed at one end of a push rod, a groove is formed in the lower end of the push plate, a first pressure spring is welded inside the groove, a buckle is welded at the other end of the first pressure spring, and a clamping groove is formed in the upper end of the stud; the push rod is manually pushed to drive the push plate fixedly installed at one end of the push rod to move, when the push plate is pushed to a moving position, the buckle enters the clamping groove under the action of the first pressure spring welded at one end of the buckle, and the screw cap can drive the stud to rotate at the moment.

According to the technical scheme, two sides of the push plate are respectively connected with a first connecting rod in a bearing mode, the other end of each first connecting rod is connected with a fixing plate in a bearing mode, a clamping rod is fixedly installed inside the fixing plate and penetrates through a screw cover, the clamping rods are connected with the screw cover in a sliding mode, two reset springs are arranged at the lower end of the fixing plate, and the other ends of the two reset springs are welded on the screw cover; when promoting the push pedal, the push pedal drives the head rod of being connected rather than the bearing and rotates, drives the fixed plate of being connected with the head rod bearing and removes, drives the supporting rod of fixed mounting at the fixed plate inboard and removes, makes the supporting rod keep away from the column spinner, after loosening the push rod, the column spinner is gripped promptly to the supporting rod, makes the spiral shell lid can drive the column spinner and rotate.

According to the technical scheme, the radial force counteracting device comprises a screw rod, the screw rod is fixedly installed at one end of a rotary column, the other end of the screw rod is connected with a stud bearing, two first sliding bearing blocks are meshed with threads on one side of the screw rod, and the two first sliding bearing blocks are identical in structure and opposite in movement direction; when the screw cap only drives the rotating column to rotate, the rotating column drives the screw rod fixedly installed below the rotating column to rotate, and the first sliding bearing blocks which are meshed with the screw rod threads and have the same structure and the opposite movement directions are driven to move close to each other.

According to the technical scheme, two bearings on two sides of the two first sliding bearing blocks are connected with second connecting rods, bearings on the other ends of the second connecting rods are connected with pressure plates, the inner sides of the pressure plates are connected with fixed shafts in a sliding mode, the fixed shafts are fixedly installed on one sides of screw rods, two second pressure springs are welded at one ends of the pressure plates, radial ejector rods are welded at the other ends of the second pressure springs, and the radial ejector rods are connected with the fixed shafts in a sliding mode; the first sliding bearing block moves to drive the second connecting rod connected with the two sides of the first sliding bearing block by the bearing to rotate, the pressure plate connected with the second connecting rod bearing is driven to move, the second pressure spring welded at one end of the pressure plate is driven to contract to press the radial ejector rod to eject the radial ejector rod, and a radial pressure is given to the radial ejector rod to enable the radial ejector rod to offset a part of radial force applied to the bolt.

According to the technical scheme, a second sliding bearing block is meshed with one side of the screw rod in a threaded manner, the second sliding bearing block is positioned at the lower end of the first sliding bearing block, the other end of the second sliding bearing block is connected with a third connecting rod in a bearing manner, the other end of the third connecting rod is connected with an axial limiting rod in a bearing manner, and the axial limiting rod is connected with the stud in a sliding manner; the screw rod rotates to drive the second sliding bearing block which is in threaded engagement with the screw rod to move, the third connecting rod which is connected with the second sliding bearing block is driven to rotate, the axial limiting rod which is connected with the third connecting rod bearing is driven to move, the bolt is axially limited, and the axial limiting rod can offset a part of axial force applied to the bolt.

Compared with the prior art, the utility model discloses the beneficial effect who reaches is: the utility model is characterized in that the utility model,

(1) through the arrangement of the push rod, the connecting rod, the clamping rod and other mechanisms, the push rod is pushed to drive the connecting rod to rotate and drive the fixing plate to drive the clamping arc to no longer clamp the rotary column, meanwhile, the buckle enters the clamping groove, so that the screw cap can drive the stud to rotate, when the push rod is loosened, the push rod drives the clamping arc to clamp the rotary column, so that the screw cap can drive the lead screw to rotate, and through the steps, the aim of realizing the rotary separation between the rotary column and the lead screw through the push rod can be fulfilled;

(2) through the arrangement of the sliding bearings, the screw rod, the spring and other mechanisms, when the screw rod is rotated, the sliding bearings meshed with the screw rod threads are driven to move, the connecting rod is driven to rotate, the connecting plate connected with the connecting rod bearing is driven to move, the connecting plate is driven to compress the spring, the radial clamping rods are extended out, a clamping force is applied to the radial clamping rods, and through the steps, the purpose of offsetting the radial force applied to a part of bolts in the using process can be achieved;

(3) through being provided with mechanisms such as axial gag lever post, lead screw, connecting rod for during manual rotating the spiral shell lid, the spiral shell lid drives the column spinner and rotates, drives the lead screw rotation of fixed mounting under the column spinner, drives the slide bearing with lead screw thread engagement and moves down, drives the connecting rod that the bearing is connected in the slide bearing both sides and rotates, drives the axial gag lever post removal of being connected with the connecting rod bearing, through above-mentioned step, can reach the purpose that bears a majority axial force with the axial gag lever post.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic perspective view of the present invention;

fig. 2 is a schematic view of the overall front structure of the utility model;

FIG. 3 is a schematic view of the overall structure of the utility model;

in the figure: 1. a screw cap; 2. a spin column; 3. pushing the plate; 4. a push rod; 5. a first pressure spring; 6. buckling; 7. a stud; 8. a second connecting rod; 9. a pressure plate; 10. a radial ejector rod; 11. a second pressure spring; 12. a first slide bearing block; 13. a second slide bearing block; 14. a third connecting rod; 15. an axial limiting rod; 16. a screw rod; 17. a first connecting rod; 18. a clamping rod; 19. a return spring; 20. and (7) fixing the plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: the utility model provides a high strength bolt for motor transmission speed reducer, includes spiral shell lid 1, its characterized in that: the inner bearing of the screw cap 1 is connected with a rotating column 2, the lower bearing of the screw cap 1 is connected with a stud 7, the inner part of the screw cap 1 is provided with a connection control device, the connection control device comprises two push rods 4, the two push rods 4 penetrate through the screw cap 1, the push rods 4 are connected with the screw cap 1 in a sliding manner, and the inner part of the stud 7 is provided with a radial force counteracting device; the connection control device aims to separate the screwing-in process of the bolt from the application process of the radial counteracting force and the axial counteracting force by controlling the push rod 4, and the radial force counteracting device is used for counteracting a part of axial force applied to the bolt during working so as to prevent the bolt from being damaged and deformed.

The connection control device comprises a push plate 3, the push plate 3 is fixedly arranged at one end of a push rod 4, a groove is formed in the lower end of the push plate 3, a first pressure spring 5 is welded inside the groove, a buckle 6 is welded at the other end of the first pressure spring 5, and a clamping groove is formed in the upper end of a stud 7; the push rod 4 is manually pushed to drive the push plate 3 fixedly installed at one end of the push rod 4 to move, when the moving position is pushed, the buckle 6 enters the clamping groove under the action of the first pressure spring 5 welded at one end of the buckle, and the screw cap 1 can drive the stud 7 to rotate at the moment.

The two sides of the push plate 3 are respectively connected with a first connecting rod 17 through bearings, the other end of the first connecting rod 17 is connected with a fixing plate 20 through bearings, a clamping rod 18 is fixedly installed inside the fixing plate 20, the clamping rod 18 penetrates through the screw cap 1, the clamping rod 18 is connected with the screw cap 1 in a sliding mode, the lower end of the fixing plate 20 is provided with two return springs 19, and the other ends of the two return springs 19 are welded on the screw cap 1; when promoting push pedal 3, push pedal 3 drives the head rod 17 of being connected rather than the bearing and rotates, drives the fixed plate 20 of being connected with head rod 17 bearing and removes, drives fixed mounting and removes at the inboard supporting rod 18 of fixed plate 20, makes supporting rod 18 keep away from the column spinner 2, after loosening push rod 4, supporting rod 18 grasps the column spinner 2 promptly, makes spiral shell lid 1 can drive the rotation of column spinner 2.

The radial force counteracting device comprises a screw rod 16, the screw rod 16 is fixedly arranged at one end of the rotary column 2, the other end of the screw rod 16 is in bearing connection with the stud 7, one side of the screw rod 16 is in threaded engagement with two first sliding bearing blocks 12, and the two first sliding bearing blocks 12 have the same structure and opposite movement directions; when the screw cap 1 only drives the rotary column 2 to rotate, the rotary column 2 drives the screw rod 16 fixedly installed below the rotary column to rotate, and the first sliding bearing blocks 12 which are in the same structure and meshed with the screw rod 16 in a threaded mode and are opposite in moving direction are driven to move close to each other.

Two side bearings of the two first sliding bearing blocks 12 are connected with a second connecting rod 8, the other end bearing of the second connecting rod 8 is connected with a pressure plate 9, the inner side of the pressure plate 9 is connected with a fixed shaft in a sliding manner, the fixed shaft is fixedly arranged on one side of the screw rod 16, one end of the pressure plate 9 is welded with two second pressure springs 11, the other end of each second pressure spring 11 is welded with a radial ejector rod 10, and the radial ejector rods 10 are connected with the fixed shaft in a sliding manner; the first sliding bearing block 12 moves to drive the second connecting rod 8 with bearings connected to the two sides of the first sliding bearing block 12 to rotate, the pressure plate 9 connected with the bearing of the second connecting rod 8 is driven to move, the second pressure spring 11 welded at one end of the pressure plate 9 is driven to contract, the radial ejector rod 10 is pressed to eject, and a radial pressure is given to the radial ejector rod to offset a part of radial force applied to the bolt.

A second sliding bearing block 13 is meshed with one side of the screw rod 16 through threads, the second sliding bearing block 13 is positioned at the lower end of the first sliding bearing block 12, the other end of the second sliding bearing block 13 is connected with a third connecting rod 14 through a bearing, the other end of the third connecting rod 14 is connected with an axial limiting rod 15 through a bearing, and the axial limiting rod 15 is connected with the stud 7 in a sliding manner; the screw rod 16 rotates to drive the second sliding bearing block 13 which is in threaded engagement with the screw rod 16 to move, the third connecting rod 14 which is in bearing connection with the second sliding bearing block 13 is driven to rotate, the axial limiting rod 15 which is in bearing connection with the third connecting rod 14 is driven to move, the bolt is axially limited, and the axial limiting rod 15 can counteract a part of axial force applied to the bolt.

The working principle is as follows: the connection control device aims to separate the screwing-in process of the bolt from the application process of the radial offset force and the axial offset force by controlling the push rod 4, the radial force offset device is used for offsetting a part of axial force applied when the bolt works to avoid the damage and deformation of the bolt, the push rod 4 is manually pushed to drive the push plate 3 fixedly arranged at one end of the push rod 4 to move, when the push plate 3 is pushed to a moving position, the buckle 6 enters the inside of the clamping groove under the action of the first pressure spring 5 welded at one end of the buckle, at the moment, the screw cap 1 can drive the stud 7 to do rotary motion, when the push plate 3 is pushed, the push plate 3 drives the first connecting rod 17 connected with the bearing of the push plate 3 to rotate, the fixed plate 20 connected with the bearing of the first connecting rod 17 is driven to move, the clamping rod 18 fixedly arranged at the inner side of the fixed plate 20 is driven to move, so that the clamping rod 18 is far away from the rotary column 2, and after the push rod 4 is loosened, the clamping rod 18 clamps the rotary column 2 to enable the screw cap 1 to drive the rotary column 2 to rotate, when the screw cap 1 only drives the rotary column 2 to rotate, the rotary column 2 drives the screw rod 16 fixedly installed below the rotary column 2 to rotate, the first sliding bearing blocks 12 which are identical in structure and meshed with the screw rod 16 in a threaded manner and opposite in movement direction are driven to move close to each other, the first sliding bearing blocks 12 move to drive the second connecting rods 8 connected to two sides of the first sliding bearing blocks 12 to rotate, the pressure plate 9 connected with the second connecting rods 8 in a bearing manner is driven to move, the second pressure spring 11 welded at one end of the pressure plate 9 is driven to contract to press the radial ejector rods 10 to listen, and a radial pressure is given to enable the radial ejector rods to counteract a part of radial force borne by the bolt, the screw rod 16 rotates to drive the second sliding bearing blocks 13 meshed with the screw rod 16 in a threaded manner to move, and drive the third connecting rods 14 connected with the second sliding bearing blocks 13 to rotate, the axial limiting rod 15 connected with the third connecting rod 14 through the bearing is driven to move, the bolt is axially limited, and the axial limiting rod 15 can offset part of axial force applied to the bolt.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (6)

1. The utility model provides a high strength bolt for motor transmission speed reducer, includes spiral shell lid (1), its characterized in that: the inner bearing of the screw cap (1) is connected with a rotary column (2), the lower bearing of the screw cap (1) is connected with a stud (7), the inner part of the screw cap (1) is provided with a connection control device, the connection control device comprises two push rods (4) and two push rods (4) penetrate through the screw cap (1), the push rods (4) are connected with the screw cap (1) in a sliding mode, and the inner part of the stud (7) is provided with a radial force counteracting device.

2. The high-strength bolt for the speed reducer of the automobile transmission according to claim 1, wherein: the connection control device comprises a push plate (3), the push plate (3) is fixedly arranged at one end of a push rod (4), a groove is formed in the lower end of the push plate (3), a first pressure spring (5) is welded in the groove, a buckle (6) is welded at the other end of the first pressure spring (5), and a clamping groove is formed in the upper end of a stud (7).

3. The high-strength bolt for the speed reducer of the automobile transmission according to claim 2, wherein: the equal bearing in both sides of push pedal (3) is connected with head rod (17), the other end bearing of head rod (17) is connected with fixed plate (20), the inside fixed mounting of fixed plate (20) has supporting rod (18), spiral shell lid (1) is run through in supporting rod (18), supporting rod (18) and spiral shell lid (1) sliding connection, the lower extreme of fixed plate (20) is provided with two reset spring (19), two the other end welding of reset spring (19) is on spiral shell lid (1).

4. The high-strength bolt for the speed reducer of the automobile transmission according to claim 3, wherein: the radial force counteracting device comprises a screw rod (16), the screw rod (16) is fixedly installed at one end of the rotary column (2), the other end of the screw rod (16) is connected with a stud (7) through a bearing, two first sliding bearing blocks (12) are meshed with threads on one side of the screw rod (16), and the first sliding bearing blocks (12) are opposite in structure and moving direction.

5. The high-strength bolt for the speed reducer of the automobile transmission according to claim 4, wherein: two the both sides bearing of first sliding bearing piece (12) is connected with second connecting rod (8), the other end bearing of second connecting rod (8) is connected with pressure plate (9), the inboard sliding connection of pressure plate (9) has the fixed axle, fixed axle fixed mounting is in one side of lead screw (16), the one end welding of pressure plate (9) has two second compression springs (11), the other end welding of second compression spring (11) has radial ejector pin (10), radial ejector pin (10) and fixed axle sliding connection.

6. The high-strength bolt for the speed reducer of the automobile transmission according to claim 5, wherein: one side threaded engagement of lead screw (16) has second sliding bearing piece (13), second sliding bearing piece (13) are located the lower extreme of first sliding bearing piece (12), the other end bearing of second sliding bearing piece (13) is connected with third connecting rod (14), the other end bearing of third connecting rod (14) is connected with axial gag lever post (15), axial gag lever post (15) and double-screw bolt (7) sliding connection.

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