CN110966392A

CN110966392A - AT transmission oil level inspection bolt assembly

Info

Publication number: CN110966392A
Application number: CN201911363715.2A
Authority: CN
Inventors: 杨文国; 潘世林; 梅周盛; 王红学
Original assignee: Hanteng Automobile Co Ltd
Current assignee: Hanteng Automobile Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-04-07

Abstract

The invention discloses an AT transmission oil level inspection bolt assembly which comprises a first bolt and a second bolt, wherein a movable nut is installed AT one end of the first bolt, a pipe cavity is formed in the first bolt, a first internal thread is formed AT one end, away from the bolt head of the first bolt, of the pipe cavity, a connecting pipe is arranged on one side of the movable nut, an external thread is arranged on the inner wall of the connecting pipe, a second internal thread with the same pitch as that of the movable nut is arranged on the inner wall of the connecting pipe, a countersunk hole communicated with the pipe cavity is formed AT one end of the first bolt, one end of the second bolt penetrates through the first bolt through the countersunk hole, and one end of the second bolt is sequentially in threaded connection with the connecting pipe and the movable nut. The assembly can not slide the bud easily during disassembly, the disassembly is more convenient, the assembly can be taken out during bud sliding, the assembly can be disassembled from the other end, the assembly of the bud sliding can be taken out, and the assembly is convenient to maintain and replace.

Description

AT transmission oil level inspection bolt assembly

Technical Field

The invention belongs to the technical field of transmissions, and particularly relates to an AT transmission oil level inspection bolt assembly.

Background

A transmission is a mechanism for changing the speed and torque from an engine, which can change the ratio of the output shaft to the input shaft, either fixed or in steps, also known as a gearbox. The speed variator consists of speed-changing transmission mechanism and control mechanism, and some vehicles also have power output mechanism. The transmission mechanism is mainly driven by common gears and also driven by planetary gears. The ordinary gear transmission mechanism generally uses a sliding gear, a synchronizer and the like, and an AT transmission is an automatic transmission and is also called an automatic gear.

AT present, an AT transmission needs an oil drainage bolt and an oil level inspection bolt, the two bolts are usually combined in a way that the oil drainage bolt is a large hexagon socket head cap bolt, the oil level inspection bolt is provided with a small hexagon socket head cap bolt inside the hexagon socket head cap oil drainage bolt, and the inner thread of the hexagon socket head cap bolt for intermediate oil level inspection is small, so that the oil level inspection bolt cannot be detached due to the fact that the inner thread of the hexagon socket head cap bolt is easy to slip during detachment.

Disclosure of Invention

The invention aims to provide an AT transmission oil level inspection bolt assembly which is not easy to slide a bud during disassembly and is more convenient to disassemble, and components of the sliding bud can be taken out and are convenient to maintain and replace by taking out the assembly and disassembling the assembly from the other end during sliding the bud so as to solve the problems in the background technology.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides an AT derailleur oil level inspection bolt assembly, includes first bolt and second bolt, the movable nut of installing of the one end of first bolt, the lumen has been seted up in the first bolt, first internal thread has been seted up to the one end that the bolt head of first bolt was kept away from to the lumen, one side of movable nut is provided with the connecting pipe, be provided with the external screw thread on the inner wall of connecting pipe, be provided with the second internal thread the same with the pitch of movable nut on the inner wall of connecting pipe, the counter sink that is linked together with the lumen is seted up to the one end of first bolt, the one end of second bolt runs through in first bolt through the counter sink, and the one end of second bolt in proper order with connecting pipe and movable nut threaded connection.

Preferably, the first bolt, the second bolt and the movable nut are all of stainless steel structure.

Preferably, the second bolt includes screw thread portion, smooth portion and bolt head, screw thread portion sets up the one end at the smooth portion, the bolt head sets up the one end of keeping away from screw thread portion at the smooth portion, screw thread portion, smooth portion and bolt head set up structure as an organic whole, square groove has been seted up to the one end of bolt head, screw thread portion in proper order with connecting pipe and activity nut threaded connection.

Preferably, the diameter of the movable nut is 0.1mm smaller than the diameter of the screw of the first bolt.

Preferably, one side of the movable nut, which is close to the connecting pipe, is fixedly bonded with a sealing gasket, and one side of the sealing gasket is in abutting connection with one end of the first bolt.

Preferably, the side wall of the smooth part is in clearance sliding fit with the inner wall of the tube cavity, and the clearance is not more than 0.2 mm.

Compared with the prior art, the invention has the beneficial effects that:

the square groove is formed in the second bolt, so that the second bolt can be conveniently detached relative to the hexagon socket head cap screw and is not easy to slip buds, the first bolt can be taken down when the buds slip through the movable nut, the connecting pipe and the second internal thread, the second bolt can be taken out by loosening the movable nut, and the situation that the second bolt cannot be taken out after the buds slip can be avoided;

drawings

FIG. 1 is an exploded view of the present invention;

FIG. 2 is a schematic cross-sectional view of the removable nut of the present invention;

fig. 3 is a schematic top view of a second bolt of the present invention.

In the figure: 1. a first bolt; 2. a second bolt; 3. a movable nut; 4. a lumen; 5. a first internal thread; 6. a connecting pipe; 7. an external thread; 8. a second internal thread; 9. a countersunk hole; 10. a threaded portion; 11. a smooth portion; 12. a bolt head; 13. a square groove; 14. and a gasket.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a AT derailleur oil level inspection bolt assembly, including first bolt 1 and second bolt 2, movable nut 3 is installed to the one end of first bolt 1, movable nut 3's the diameter ratio is 0.1mm less than first bolt 1's screw rod diameter, lumen 4 has been seted up in first bolt 1, first internal thread 5 has been seted up to the one end that first bolt 1's bolt head was kept away from to lumen 4, one side of movable nut 3 is provided with connecting pipe 6, be provided with external screw thread 7 on the outer wall of connecting pipe 6, external screw thread 7 is used for being connected with first internal thread 5, be provided with the same second internal thread 8 of pitch with movable nut 3 on the inner wall of connecting pipe 6, the counter sink 9 that is linked together with lumen 4 is seted up to the one end of first bolt 1, the one end of second bolt 2 runs through in first bolt 1 through counter sink 9, and the one end of second bolt 2 in proper order with connecting pipe 6 and movable nut 3 threaded connection.

First bolt 1, second bolt 2 and movable nut 3 all set up to 304 stainless steel structures, can improve the corrosion resistance of first bolt 1, second bolt 2 and movable nut 3 to and improve mechanical strength.

Second bolt 2 includes screw thread portion 10, smooth portion 11 and bolt head 12, screw thread portion 10 sets up the one end at smooth portion 11, bolt head 12 sets up the one end of keeping away from screw thread portion 10 at smooth portion 11, screw thread portion 10, smooth portion 11 and bolt head 12 set up to a body structure, square groove 13 has been seted up to the one end of bolt head 12, screw thread portion 10 in proper order with connecting

pipe

6 and 3 threaded connection of movable nut, use through second bolt 2, can replace original hexagon socket head cap screw, setting through square groove 13, difficult smooth bud when dismantling, it is more convenient to dismantle, and when smooth bud, can take out first bolt 1, dismantle movable nut 3 from first bolt 1, can be with dismantling of second bolt 2, convenience of customers uses.

One side that movable nut 3 is close to connecting pipe 6 bonds and is fixed with sealed 14, and the one side of sealed 14 is contradicted with the one end of first bolt 1 and is connected, can improve the compactness of being connected of first bolt 1 and movable nut 3.

The lateral wall of smooth part 11 and the inner wall clearance sliding fit of lumen 4, and the clearance is not more than 0.2mm, and the second bolt 2 of being convenient for slides in lumen 4, and the screw portion 10 of being convenient for is connected with connecting pipe 6 and movable nut 3 simultaneously.

The structure principle is as follows: through seting up square groove 13 on second bolt 2, for hexagon socket head cap screw, the difficult smooth bud of when dismantling, it is more convenient to dismantle, through movable nut 3, connecting pipe 4 and the cooperation of second internal thread 8 and second bolt 2, can take off first bolt 1 when smooth bud, through unscrewing movable nut 3, takes out second bolt 2, can avoid the condition emergence that can't take out behind the smooth bud of second bolt 2.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. An AT transmission oil level inspection bolt assembly, includes first bolt (1) and second bolt (2), its characterized in that: a movable nut (3) is arranged at one end of the first bolt (1), a pipe cavity (4) is arranged in the first bolt (1), one end of the pipe cavity (4) far away from the bolt head of the first bolt (1) is provided with a first internal thread (5), one side of the movable nut (3) is provided with a connecting pipe (6), the inner wall of the connecting pipe (6) is provided with an external thread (7), a second internal thread (8) with the same pitch as the movable nut (3) is arranged on the inner wall of the connecting pipe (6), one end of the first bolt (1) is provided with a counter bore (9) communicated with the tube cavity (4), one end of the second bolt (2) penetrates through the first bolt (1) through a counter bore (9), and one end of the second bolt (2) is in threaded connection with the connecting pipe (6) and the movable nut (3) in sequence.

2. The AT transmission oil level inspection bolt assembly of claim 1, wherein: the first bolt (1), the second bolt (2) and the movable nut (3) are all arranged to be in a 304 stainless steel structure.

3. The AT transmission oil level inspection bolt assembly of claim 1, wherein: the second bolt (2) comprises a thread part (10), a smooth part (11) and a bolt head (12), the thread part (10) is arranged at one end of the smooth part (11), the bolt head (12) is arranged at one end, away from the thread part (10), of the smooth part (11), the thread part (10), the smooth part (11) and the bolt head (12) are arranged into a whole, a square groove (13) is formed in one end of the bolt head (12), and the thread part (10) is sequentially in threaded connection with a connecting pipe (6) and a movable nut (3).

4. The AT transmission oil level inspection bolt assembly of claim 1, wherein: the diameter of the movable nut (3) is 0.1mm smaller than the diameter of the screw of the first bolt (1).

5. The AT transmission oil level inspection bolt assembly of claim 1, wherein: one side that activity nut (3) are close to connecting pipe (6) bonds and is fixed with sealed pad (14), and the one side of sealed pad (14) is contradicted with the one end of first bolt (1) and is connected.

6. An AT transmission oil level inspection bolt assembly as defined in claim 3, wherein: the side wall of the smooth part (11) is in clearance sliding fit with the inner wall of the tube cavity (4), and the clearance is not more than 0.2 mm.