CN218510124U

CN218510124U - Bolt and threaded bushing structure for connecting gearbox body and hanger rod

Info

Publication number: CN218510124U
Application number: CN202221361127.2U
Authority: CN
Inventors: 朱莎; 王君杰; 吴黄蓉; 程云秋; 朱凌
Original assignee: Nanjing Fuxin Electromechanical Equipment Co ltd
Current assignee: Nanjing Fuxin Electromechanical Equipment Co ltd
Priority date: 2022-06-01
Filing date: 2022-06-01
Publication date: 2023-02-21
Anticipated expiration: 2032-06-01

Abstract

The utility model discloses a belong to gear box and jib and be connected technical field, specifically be a bolt and threaded bush structure that is used for gear box and jib to be connected, including the gear box body, the left end of gear box body is equipped with the jib, still including the bolt assembly who connects gear box body and jib, bolt assembly includes bolt post and fastening nut, the surface of bolt post is equipped with first buffering subassembly all around, the outer wall top threaded connection fastening nut of bolt post, fastening nut's outer wall is equipped with the notch all around, the utility model discloses can increase gear box body and jib connection stability, and can cushion the atress of ball pivot and installation piece, prevent the screw thread fracture of bolt columnar connection, lead to the bolt post to break away from, make the condition of ball pivot and installation piece separation take place.

Description

Bolt and threaded bushing structure for connecting gearbox body and hanger rod

Technical Field

The utility model relates to a technical field is connected with the jib to the gear box, specifically is a bolt and threaded bush structure that is used for gear box and jib to be connected.

Background

The power of the rail vehicle is derived from a traction motor, the traction motor transmits torque and vehicle speed to an axle through a gear box, a driving wheel pair rolls to drive the vehicle to move forwards, an output shaft at one end of the gear box is connected with the axle and used for driving the axle to rotate, an output shaft at the other end of the gear box is connected with the traction motor and used for receiving the torque transmitted by the traction motor, a connecting mechanism between the gear box and the traction motor is a coupling, when the vehicle is in a state of full load of passengers, the vehicle body state sinks relative to an empty vehicle state, the center of the gear box is not in the same straight line with the center of the traction motor, therefore, the deformation of the coupling is required to buffer different shafts between the traction motor and the center of the gear box, and the high-speed operation of the coupling, the traction motor and the gear box gear is ensured.

The gearbox is suspended from the frame by a boom, whereby the boom bears the weight load of the gearbox and the shock impact or torque loads of the gearbox during operation of the vehicle, including the inertia loads during traction, the impact loads during braking and the loads caused by short-circuiting of the traction motor.

The existing connection between the suspension rod and the gear box is not fixed and does not change, but certain relative movement is generated along with the change of load, so that the connection structure of the suspension rod and the gear box is easy to damage.

SUMMERY OF THE UTILITY MODEL

The present invention has been made in view of the above and/or the problems in the prior art of a bolt and threaded bushing structure for connecting a gearbox housing to a hanger rod.

Therefore, the utility model aims at providing a bolt and threaded bush structure that is used for gear box body to be connected with the jib, the gear box body is connected through bolt assembly and threaded bush subassembly with the jib, and the first buffer subassembly of rethread and second buffer cushion, can solve the above-mentioned current problem of proposing.

In order to solve the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

a bolt structure for connecting a gearbox body with a hanger rod comprises: the left end of the gear box body is provided with a suspender, and the gear box further comprises a bolt assembly for connecting the gear box body and the suspender;

the bolt assembly comprises a bolt column and a fastening nut, wherein a first buffering assembly is arranged on the periphery of the surface of the bolt column, the top end of the outer wall of the bolt column is in threaded connection with the fastening nut, and notches are formed in the periphery of the outer wall of the fastening nut.

As a preferred scheme that is used for the bolted construction that gear box and jib are connected, wherein: the center of gear box body is equipped with the axletree, the left end of gear box body is equipped with the pinion shaft, the both ends of the outer wall left end downside of gear box body are equipped with the installation piece.

As a preferred scheme that is used for the bolted construction that gear box and jib are connected, wherein: the suspender contacts the pinion shaft, an upper lifting point is arranged at the upper end of the suspender, and a lower lifting point is arranged at the lower end of the suspender.

As a preferred scheme that is used for the bolted construction that gear box and jib are connected, wherein: the interior of the upper lifting point and the interior of the lower lifting point are rotatably connected with a spherical hinge, and the spherical hinge is connected with the mounting block through a bolt assembly and a thread bushing assembly.

As a preferred scheme that is used for the bolted construction that gear box and jib are connected, wherein: first buffering subassembly includes the buffer block, buffer block sliding connection is around the inside of bolt post, buffer spring is connected to the bottom of buffer block, buffer spring's bottom is connected in the inside of bolt post.

The threaded bushing structure for connecting the gearbox body and the suspension rod comprises a threaded bushing component for connecting the gearbox body and the suspension rod, and a second buffer device arranged on the outer wall of the threaded bushing component;

the threaded bushing assembly comprises a bushing and a fastening sleeve, the bushing penetrates through the spherical hinge and the mounting block, the inner part of the bushing is in threaded connection with a bolt column, and the bottom of the bushing is in sliding connection with the buffer block;

the top surface of bush is equipped with the internal thread groove, the bottom of adapter sleeve is equipped with the external screw thread piece, the inside in the internal thread groove of external screw thread piece threaded connection, fastening nut is placed to the inside of adapter sleeve.

As a preferred scheme that is used for threaded bush structure that gear box and jib are connected, wherein: the second buffer device comprises a buffer box, the buffer box is arranged around the inside of the threaded bushing component, the inside of the buffer box is connected with a spring, the right end of the spring is connected with a movable block, and the movable block is connected inside the buffer box in a sliding mode.

Compared with the prior art: the connecting strength of the lining assembly is increased through the bolt assembly, so that the connecting strength of the spherical hinge and the mounting block is increased, and the spherical hinge is prevented from being separated from the mounting block;

the first buffer assembly can relieve the sudden stress of the threads between the bolt column and the bushing, and prevent the threads connected with the bolt column from being broken, so that the bolt column is separated, and the spherical hinge is separated from the mounting block;

the spherical hinge can be connected with the mounting block through the threaded bushing assembly;

can transversely cushion the bush through second buffer, prevent that the bush from atress suddenly and leading to the bush to take place to damage, cause ball pivot and installation piece separation.

Drawings

Fig. 1 is a schematic view of the overall structure provided by the present invention;

fig. 2 is a schematic view of a connection structure of the mounting block and the spherical hinge provided by the present invention;

fig. 3 is a schematic view of a split structure of the threaded bushing assembly provided by the present invention;

fig. 4 is a schematic view of a bushing structure provided by the present invention;

fig. 5 is a schematic structural view of the first buffer assembly provided by the present invention.

In the figure: the gearbox comprises a gearbox body 1, an axle 11, a pinion shaft 12, a mounting block 13, a suspension rod 2, an upper suspension point 21, a lower suspension point 22, a spherical hinge 23, a bolt assembly 3, a bolt column 31, a first buffer assembly 32, a buffer block 321, a buffer spring 322, a fastening nut 33, a notch 34, a threaded bushing assembly 4, a bushing 41, an internal thread groove 42, a chassis 43, a fastening sleeve 44, an external thread block 45, a second buffer device 5, a buffer box 51, a spring 52 and a movable block 53.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The utility model provides a bolt and threaded bush structure for gear box body and jib are connected has the connection stability that increases, and can cushion the atress of ball pivot 23 and installation piece 13, prevents that the screw thread that bolt post 31 is connected from splitting, leads to the bolt post 31 to break away from, makes the ball pivot 23 with the advantage that the condition emergence of installation piece 13 separation, please refer to fig. 1-5, including gear box body 1, jib 2, bolt assembly 3, threaded bush assembly 4 and second buffer 5;

the lower side of the left end of the gear box body 1 is connected with a suspender 2 through a bolt assembly 3 and a threaded bush assembly 4, the gear box body 1 plays a driving role, the gear box body 1 consists of an axle 11 and a pinion shaft 12 and plays a driving role, and two ends of the lower side of the left end of the outer wall of the gear box body 1 are provided with mounting blocks 13 which can connect the suspender 2 through the mounting blocks 13;

the lower side of the right end of the suspender 2 is connected with the gear box body 1 through the bolt assembly 3 and the threaded bush assembly 4, the gravity load of the gear box can be borne through the suspender 2, the suspender 2 comprises an upper hoisting point 21, a lower hoisting point 22 and a spherical hinge 23, the suspender 2 is in contact with the pinion shaft 12 and can pull the pinion shaft 12, the upper end of the suspender 2 is provided with the upper hoisting point 21, the lower end of the suspender 2 is provided with the lower hoisting point 22, the spherical hinge 23 is rotatably connected with the inner part of the upper hoisting point 21 and the lower hoisting point 22 through the spherical hinge 23, the upper hoisting point 21 is connected with a brake cylinder through the spherical hinge 23, the lower hoisting point 22 is connected with the mounting block 13 through the spherical hinge 23, the spherical hinge 23 is connected with the mounting block 13 through the bolt assembly 3 and the threaded bush assembly 4 to play a role in connection, and the lower hoisting point 22 of the suspender 2 supports the gear box body 1;

the bolt assembly 3 is in threaded connection with the inside of the threaded bushing assembly 4, the connection strength of the bushing assembly 4 is increased through the bolt assembly 3, so that the connection strength of the spherical hinge 23 and the installation block 13 is increased, the spherical hinge 23 is prevented from being separated from the installation block 13, the stress of the spherical hinge 23 and the stress of the installation block 13 can be buffered, the bolt assembly 3 is prevented from being damaged by the stress, the bolt assembly 3 comprises a bolt column 31, a first buffer assembly 32, a buffer block 321, a buffer spring 322, a fastening nut 33 and a notch 34, the first buffer assembly 32 is arranged around the surface of the bolt column 31, the connection of the threaded bushing assembly 4 can be protected through the first buffer assembly 32, the fine shaking of the threaded bushing assembly 4 is buffered, the threaded fracture of the threaded connection with the bolt column 31 caused by sudden large force on the threaded bushing assembly 4 is prevented, and the separation of the bolt column 31 is prevented, the spherical hinge 23 and the mounting block 13 are separated, the top end of the outer wall of the bolt column 31 is in threaded connection with the fastening nut 33 to achieve the connection effect and reinforce the connectivity of the threaded bushing component 4, notches 34 are formed in the periphery of the outer wall of the fastening nut 33, the fastening nut 33 placed in the fastening sleeve 44 can be rotated conveniently through the notches 34, the bolt column 31 can be connected in a threaded manner conveniently, the buffer block 321 is connected to the periphery of the inside of the bolt column 31 in a sliding manner to achieve the moving effect, the buffer spring 322 is connected to the bottom of the buffer block 321, the bottom of the buffer spring 322 is connected to the inside of the bolt column 31, when the threaded bushing component 4 is subjected to a sudden large force, the thread connected with the bushing 41 and the bolt column 31 is stressed slightly to move towards the lower end, the buffer block 321 is stressed downwards, the buffer block 321 is toughened under the effect of the buffer spring 322, and the sudden stress of the thread is relieved, the situation that the threads connected with the bolt columns 31 are broken to cause the bolt columns 31 to be separated and the spherical hinge 23 is separated from the mounting block 13 is prevented;

the threaded bushing assembly 4 penetrates through the spherical hinge 23 and the mounting block 13, the spherical hinge 23 and the mounting block 13 can be connected through the threaded bushing assembly 4, the threaded bushing assembly 4 comprises a bushing 41, an inner thread groove 42, a base plate 43, a fastening sleeve 44 and an outer thread block 45, the bushing 41 penetrates through the spherical hinge 23 and the mounting block 13, the bushing 41 is conveniently connected with the fastening sleeve 44, the spherical hinge 23 is connected with the mounting block 13, the inner thread of the bushing 41 is connected with the bolt column 31, the connectivity of the bushing 41 is improved through the bolt column 31 and the fastening nut 33, the spherical hinge 23 is prevented from being separated from the mounting block 13, the bottom of the bushing 41 is slidably connected with the buffer block 321, the bushing 41 is in contact with the buffer block 321, stress buffering is carried out on threads between the bushing 41 and the bolt column 31, the threads are prevented from being damaged due to sudden stress, the inner thread groove 42 is arranged on the top surface of the bushing 41, the outer thread block 45 is arranged at the bottom of the bushing 41, the outer thread block 45 is connected with the fastening sleeve 44, the inner thread groove 42 is further, the fastening sleeve 41 is connected with the fastening sleeve 44, and the fastening nut 33 is arranged, and the fastening sleeve 31 can be connected with the mounting block 13, and the fastening sleeve 41, and the stability of the fastening sleeve 31 can be improved;

second buffer 5 sets up around the inside of bush 41, can transversely cushion bush 41 through second buffer 5, prevent that bush 41 from receiving the force suddenly and leading to bush 41 to take place to damage, cause ball pivot 23 and installation piece 13 to separate, second buffer 5 includes baffle-box 51, spring 52 and movable block 53, baffle-box 51 sets up around the inside of threaded bush subassembly 4, play fixed mounting's effect, internal connection spring 52 through baffle-box 51, movable block 53 is connected to the right-hand member of rethread spring 52, make spring 52 can carry out the effect that toughness kick-backed to movable block 53, thereby make movable block 53 cushion bush 41's atress, prevent that bush 41 from receiving the force suddenly and taking place to damage, movable block 53 sliding connection is in baffle-box 51's inside, can carry on spacingly to movable block 53, prevent that movable block 53 from breaking away from baffle-box 51.

When the gearbox is used specifically, a person skilled in the art brings the mounting block 13 of the gearbox body 1 into contact with the spherical hinge 23 of the suspension rod 2, at this time, the bushing 41 penetrates through the spherical hinge 23 and the mounting block 13, at this time, the movable block 53 slides into the spherical hinge 23 and the mounting block 13, the external thread block 45 at the bottom of the fastening sleeve 44 is in threaded connection with the inside of the internal thread groove 42 on the surface of the bushing 41, so that the spherical hinge 23 is connected with the mounting block 13, the bolt column 31 is in threaded connection with the inside of the bushing 41, the buffer block 321 is in contact with the chassis 43 of the bushing 41, the fastening nut 33 is placed inside the fastening sleeve 44, the top of the bolt column 31 is in threaded connection, the connection stability of the bushing 41 is improved, when the bushing 41 is suddenly stressed, the movable block 53 around the outer wall of the bushing 41 retracts, the transverse stress on the bushing 41 is buffered, the buffer block 321 is pressed downwards under the stress, under the effect of the buffer spring 322, the buffer block 321 rebounds, the stress on the bolt column 31 between the bushing 31 and the bush 41 is further prevented from being suddenly stressed, and the bolt column 31 is separated from the buffer 13, and the situation that the bolt column is separated from the ball hinge 13 is caused.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides a bolt structure for gear box and jib are connected, includes gear box body (1), the left end of gear box body (1) is equipped with jib (2), its characterized in that: the gearbox is characterized by also comprising a bolt assembly (3) for connecting the gearbox body (1) and the suspender (2);

bolt subassembly (3) are equipped with first buffer assembly (32) around including bolt post (31) and fastening nut (33), the surface of bolt post (31), the outer wall top threaded connection fastening nut (33) of bolt post (31), the outer wall of fastening nut (33) is equipped with notch (34) all around.

2. The bolt structure for connecting the gearbox body and the suspension rod is characterized in that an axle (11) is arranged in the center of the gearbox body (1), a pinion shaft (12) is arranged at the left end of the gearbox body (1), and mounting blocks (13) are arranged at two ends of the lower side of the left end of the outer wall of the gearbox body (1).

3. A bolt construction for a gearbox housing and boom connection according to claim 1, characterised in that the boom (2) contacts the pinion shaft (12), that the upper end of the boom (2) is provided with an upper suspension point (21) and that the lower end of the boom (2) is provided with a lower suspension point (22).

4. A bolt structure for connecting a gearbox body and a suspension rod according to claim 3, characterized in that the upper suspension point (21) and the lower suspension point (22) are rotatably connected with a spherical hinge (23), and the spherical hinge (23) and the mounting block (13) are connected through a bolt assembly (3) and a threaded bushing assembly (4).

5. The bolt structure for connecting the gearbox body and the suspension rod as claimed in claim 1, wherein the first buffer assembly (32) comprises a buffer block (321), the buffer block (321) is connected around the inner part of the bolt column (31) in a sliding mode, the bottom of the buffer block (321) is connected with a buffer spring (322), and the bottom of the buffer spring (322) is connected inside the bolt column (31).

6. The utility model provides a screw thread bush structure that is used for gear box and jib to be connected which characterized in that: the gearbox comprises a threaded bush component (4) for connecting a gearbox body (1) and a suspender (2), and a second buffer device (5) arranged on the outer wall of the threaded bush component (4);

the threaded bushing assembly (4) comprises a bushing (41) and a fastening sleeve (44), the bushing (41) penetrates through the spherical hinge (23) and the mounting block (13), the inner part of the bushing (41) is in threaded connection with the bolt column (31), and the bottom of the bushing (41) is in sliding connection with a buffer block (321);

the top surface of the bush (41) is provided with an inner thread groove (42), the bottom of the fastening sleeve (44) is provided with an outer thread block (45), the outer thread block (45) is in threaded connection with the inner thread groove (42), and a fastening nut (33) is placed in the fastening sleeve (44).

7. A threaded bushing arrangement for connecting a gearbox housing with a boom according to claim 6, characterized in that the second damping means (5) comprises a damping box (51), the damping box (51) is arranged around the inside of the threaded bushing assembly (4), the damping box (51) is connected with a spring (52) inside, the right end of the spring (52) is connected with a movable block (53), and the movable block (53) is slidably connected inside the damping box (51).