CN214404555U

CN214404555U - Timing chain tensioner

Info

Publication number: CN214404555U
Application number: CN202120128367.7U
Authority: CN
Inventors: 王艳芳; 冯世杰; 焦红星; 闫祥俊
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-18
Filing date: 2021-01-18
Publication date: 2021-10-15
Anticipated expiration: 2031-01-18

Abstract

The utility model discloses a timing chain tensioning ware, which comprises a housin, the bottom fixedly connected with fixing base of casing, the bottom fixedly connected with hydraulic valve piece of fixing base, the mounting groove has been seted up to the inside of fixing base, the standing groove has been seted up at the top of hydraulic valve piece, the standing groove is linked together with the mounting groove, the inside sliding connection of standing groove has the briquetting. The utility model discloses an air outlet groove has been seted up on the top of inner skleeve, the inside air of discharge when the sleeve removes including convenient, thereby make things convenient for the chain that the better adaptation tensioning degree of tensioning ware is different, the inside packing through the reservoir has the fluid that is used for hydraulic system, simultaneously fluid can also play lubricated effect, prevent that the piston excessively leads to hydraulic pressure inefficacy with the head tank friction after long-time use, the inclined plane through housing face is unanimous with the inclined plane gradient on inner skleeve surface, can make the inner skleeve agree with the casing more when removing, the inclined plane can play the effect that blocks simultaneously.

Description

Timing chain tensioner

Technical Field

The utility model relates to the technical field of auto-parts, specifically be a timing chain tensioning ware.

Background

The utility model relates to an auto-parts technical field, the effect that rises the tight ware plays the direction and rises the effect of rising to it on the timing belt or the timing chain of engine, makes it be in the best state that rises all the time. Generally, the method is divided into two modes of oil pressure and machinery, the methods can automatically adjust the tightness of a timing belt and a timing chain, and with the continuous progress of the vehicle manufacturing technology level and the industrial development, part of the timing belt of an engine is replaced by the timing chain of the engine. The timing chain usually needs to install the tensioning ware additional in the course of the work and realizes the tensioning of chain, avoids appearing the chain too loose or overlength phenomenon after the chain time uses to alleviate the noise of engine, improve the precision and the life-span of sender operation.

Most of the existing tensioners adopt a mechanical mode to operate, and after long-time use, a large degree of mechanical abrasion occurs, so that the operation of the tensioners cannot reach the initial accurate degree, and most of the existing tensioners possibly cause piston clamping due to lack of lubrication, and the tensioning function fails, so that the timing chain system fails.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a timing chain tensioning ware to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a timing chain tensioner, includes the casing, the bottom fixedly connected with fixing base of casing, the bottom fixedly connected with hydraulic valve piece of fixing base, the mounting groove has been seted up to the inside of fixing base, the standing groove has been seted up at the top of hydraulic valve piece, the standing groove is linked together with the mounting groove, the inside sliding connection of standing groove has the briquetting, the top fixedly connected with dog of briquetting, the top of dog is provided with the spring fixing base, the top of spring fixing base is provided with the spring, the inside sliding connection of casing has the inner skleeve, the top fixedly connected with buffer spring of inner skleeve inner wall, buffer spring's bottom is provided with the plunger.

The hydraulic valve comprises a hydraulic valve block and is characterized in that a liquid storage tank is formed in the hydraulic valve block, a pressure tank is formed in the hydraulic valve block, the pressure tank is communicated with the liquid storage tank, a piston is connected to the inside of the pressure tank in a sliding mode, a connecting rod is fixedly connected to the top of the piston, and the top end of the connecting rod is fixedly connected with the bottom of a pressing block.

The bottom of the hydraulic valve block is provided with a liquid discharge groove, the bottom of the hydraulic valve block is provided with a sealing plug, and the sealing plug is matched with the liquid discharge groove.

Mounting holes are formed in the two sides of the fixing seat.

The top on casing surface and the bottom on inner skleeve surface all are provided with the inclined plane, the bottom fixedly connected with baffle of plunger.

Compared with the prior art, the beneficial effects of the utility model are that: this timing chain tensioning ware, the air outlet groove has been seted up on top through the inner skleeve, the inside air of discharge when the sleeve removes including convenient, thereby make things convenient for the chain that the better adaptation tensioning degree of tensioning ware is different, the inside packing through the reservoir has the fluid that is used for hydraulic system, fluid can also play lubricated effect simultaneously, prevent that the piston excessively leads to hydraulic pressure inefficacy with the head tank friction after long-time use, the inclined plane through housing face is unanimous with the inclined plane gradient on inner skleeve surface, can make the inner skleeve agree with the casing more when removing, the inclined plane can play the effect that blocks simultaneously.

Drawings

FIG. 1 is a schematic diagram of a timing chain tensioner in accordance with a preferred embodiment of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

fig. 3 is a partially enlarged view of a portion B shown in fig. 1.

In the figure: 1. a housing; 2. a fixed seat; 3. a hydraulic valve block; 4. mounting grooves; 5. a placement groove; 6. briquetting; 7. a stopper; 8. a spring fixing seat; 9. a spring; 10. an inner sleeve; 11. a buffer spring; 12. a plunger; 13. a liquid storage tank; 14. a pressure tank; 15. a piston; 16. a connecting rod; 17. a liquid discharge tank; 18. a sealing plug; 19. mounting holes; 20. and a baffle 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 an embodiment: a timing chain tensioner comprises a shell 1, wherein a fixed seat 2 is fixedly connected to the bottom of the shell 1, a hydraulic valve block 3 is fixedly connected to the bottom of the fixed seat 2, a mounting groove 4 is formed in the fixed seat 2, a placing groove 5 is formed in the top of the hydraulic valve block 3, the placing groove 5 is communicated with the mounting groove 4, a pressing block 6 is slidably connected to the inside of the placing groove 5, a stop block 7 is fixedly connected to the top of the pressing block 6, a spring fixed seat 8 is arranged on the top of the stop block 7, a spring 9 is arranged on the top of the spring fixed seat 8, an inner sleeve 10 is slidably connected to the inside of the shell 1, a buffer spring 11 is fixedly connected to the top of the inner wall of the inner sleeve 10, a plunger 12 is arranged at the bottom of the buffer spring 11, an air outlet groove is formed in the top of the inner sleeve 10, and air in the inner sleeve 10 can be conveniently discharged when the inner sleeve 10 moves, meanwhile, when the inner sleeve 10 is pressed down by external pressure, the buffer spring 11 is driven to press down, the plunger 12 is further pushed to move down, the baffle 20 is further driven to move down, the spring 9 is compressed by the baffle 20, and when the external pressure disappears, the spring 9 rebounds, the plunger 12 is pushed to move by the baffle 20, so that the inner sleeve 10 is ejected again.

The hydraulic system is characterized in that a liquid storage tank 13 is formed in the hydraulic valve block 3, a pressure tank 14 is formed in the hydraulic valve block 3, the pressure tank 14 is communicated with the liquid storage tank 13, a piston 15 is connected to the inside of the pressure tank 14 in a sliding mode, a connecting rod 16 is fixedly connected to the top of the piston 15, the top end of the connecting rod 16 is fixedly connected with the bottom of the pressing block 6, the piston 15 is tightly attached to the inner wall of the pressure tank 14, oil used for a hydraulic system is filled in the liquid storage tank 13, meanwhile, the oil can play a lubricating role, hydraulic failure caused by excessive friction between the piston 15 and the pressure tank 14 after long-time use is prevented, when the connecting rod 16 receives pressure, the piston 15 is pressed downwards, and therefore liquid in the pressure tank 14 is compressed, and the oil in the inside plays a supporting and tensioning role for the tensioner.

Liquid discharge tank 17 has been seted up to the bottom of hydraulic valve piece 3, the bottom of hydraulic valve piece 3 is provided with sealing plug 18, sealing plug 18 and liquid discharge tank 17 looks adaptation, when hydraulic valve piece 3 takes place to damage or need change the inside liquid of hydraulic valve piece 3 after long-time use, open sealing plug 18, emit the inside liquid and change, sealing plug 18 can prevent to leak out at the inside liquid of in-process hydraulic valve piece 3 that uses, guarantees the normal use of hydraulic valve piece 3.

Mounting holes 19 are formed in the two sides of the fixing seat 2, and the fixing seat can be fixed at a designated position on an engine through the mounting holes 19.

Inclined planes are arranged at the top of the surface of the shell 1 and the bottom of the surface of the inner sleeve 10, a baffle 20 is fixedly connected to the bottom end of the plunger 12, the inclined plane of the surface of the shell 1 is consistent with the inclined plane of the surface of the inner sleeve 10 in inclination, the inner sleeve 10 can be more fit with the shell 1 when moving, and meanwhile, the inclined planes can play a role in blocking.

The working principle is as follows: the fixing seat can be fixed at a designated position on an engine through the mounting hole 19, in the use process, when the inner sleeve 10 is pressed down by external pressure, the buffer spring 11 is driven to press down, the plunger 12 is further pushed to move down, the baffle 20 is further driven to move down, the spring 9 is compressed by the baffle 20, when the external pressure disappears, the spring 9 rebounds, the plunger 12 is pushed to move through the baffle 20, the inner sleeve 10 is ejected again, the liquid storage tank 13 is filled with oil for a hydraulic system, meanwhile, the oil can play a role of lubrication, the hydraulic failure caused by excessive friction between the piston 15 and the pressure tank 14 after long-time use is prevented, when the connecting rod 16 receives the pressure, the piston 15 is pressed down, the liquid in the pressure tank 14 is compressed, and the oil in the interior plays a role of supporting and tensioning for the tensioner, when the hydraulic valve block 3 is damaged or needs to be replaced by liquid in the hydraulic valve block 3 after long-time use, the sealing plug 18 is opened, the liquid in the hydraulic valve block 3 is discharged for replacement, the sealing plug 18 can prevent the liquid in the hydraulic valve block 3 from leaking out in the use process, and the normal use of the hydraulic valve block 3 is ensured.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A timing chain tensioner comprising a housing (1), characterized in that: the bottom of the shell (1) is fixedly connected with a fixed seat (2), the bottom of the fixed seat (2) is fixedly connected with a hydraulic valve block (3), the interior of the fixed seat (2) is provided with an installation groove (4), the top of the hydraulic valve block (3) is provided with a placing groove (5), the placing groove (5) is communicated with the mounting groove (4), a pressing block (6) is connected inside the placing groove (5) in a sliding manner, the top of the pressing block (6) is fixedly connected with a stop block (7), the top of the stop block (7) is provided with a spring fixing seat (8), a spring (9) is arranged at the top of the spring fixing seat (8), an inner sleeve (10) is connected inside the shell (1) in a sliding manner, the top of the inner wall of the inner sleeve (10) is fixedly connected with a buffer spring (11), and the bottom of the buffer spring (11) is provided with a plunger (12).

2. A timing chain tensioner as set forth in claim 1, wherein: the hydraulic valve is characterized in that a liquid storage tank (13) is formed in the hydraulic valve block (3), a pressure tank (14) is formed in the hydraulic valve block (3), the pressure tank (14) is communicated with the liquid storage tank (13), a piston (15) is slidably connected to the inside of the pressure tank (14), a connecting rod (16) is fixedly connected to the top of the piston (15), and the top end of the connecting rod (16) is fixedly connected with the bottom of the pressing block (6).

3. A timing chain tensioner as set forth in claim 1, wherein: a liquid discharge groove (17) is formed in the bottom of the hydraulic valve block (3), a sealing plug (18) is arranged at the bottom of the hydraulic valve block (3), and the sealing plug (18) is matched with the liquid discharge groove (17).

4. A timing chain tensioner as set forth in claim 1, wherein: mounting holes (19) are formed in the two sides of the fixing seat (2).

5. A timing chain tensioner as set forth in claim 1, wherein: the top on the surface of the shell (1) and the bottom on the surface of the inner sleeve (10) are both provided with inclined planes, and the bottom end of the plunger (12) is fixedly connected with a baffle (20).