CN219543018U - Shock absorber stretching tool - Google Patents

Shock absorber stretching tool Download PDF

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Publication number
CN219543018U
CN219543018U CN202320460851.9U CN202320460851U CN219543018U CN 219543018 U CN219543018 U CN 219543018U CN 202320460851 U CN202320460851 U CN 202320460851U CN 219543018 U CN219543018 U CN 219543018U
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CN
China
Prior art keywords
shock absorber
cylinder
connecting rod
baffle
support
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Active
Application number
CN202320460851.9U
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Chinese (zh)
Inventor
王晓峰
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Shaanxi Baoli Special Vehicle Manufacturing Co ltd
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Shaanxi Baoli Special Vehicle Manufacturing Co ltd
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Application filed by Shaanxi Baoli Special Vehicle Manufacturing Co ltd filed Critical Shaanxi Baoli Special Vehicle Manufacturing Co ltd
Priority to CN202320460851.9U priority Critical patent/CN219543018U/en
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Publication of CN219543018U publication Critical patent/CN219543018U/en
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Abstract

The utility model provides a shock absorber stretching tool which comprises an air cylinder, a connecting rod, a support and a baffle, wherein a piston rod of the air cylinder and the connecting rod are fixed and are mutually perpendicular, the support is positioned at the rear of the air cylinder and is provided with a positioning pin, the positioning pin and the end part of the connecting rod are oppositely arranged and used for fixing two ends of the shock absorber, and the baffle is positioned at the front of the connecting rod. The cylinder acts to enable the connecting rod to pull the piston rod of the shock absorber, and the baffle is used for limiting the connecting rod to ensure the stretching length of the shock absorber. The cylinder, the support and the baffle are all fixed on the operation platform, and the installation position of the baffle is adjustable along the front-back direction for satisfying the stretching of the shock absorbers of different models. The stretching tool for the shock absorber can rapidly pull out the piston rod of the ex-factory shock absorber out of the cylinder body, enables the shock absorber to reach the length required by assembly, meets the assembly requirement, and is convenient to operate, time-saving and labor-saving.

Description

Shock absorber stretching tool
Technical Field
The utility model belongs to the technical field of machining, and relates to a shock absorber stretching tool.
Background
Hydraulic shock absorbers are widely used in automotive suspension systems and are based on the principle that when a vehicle frame reciprocates in relation to an axle and a piston reciprocates in a cylinder of the shock absorber, oil in a shock absorber housing repeatedly flows from one internal cavity into another through a number of narrow apertures. At this time, friction between the liquid and the inner wall and internal friction between the liquid molecules form damping force against vibration.
During the production of heavy truck vehicles, the installation of shock absorbers in the suspension system is a relatively heavy task. Because the shock absorber leaves the factory and is compressed, the piston rod is mostly in the cylinder body, and only the connecting joint leaks outside, so the shock absorber piston rod needs to be manually pulled out of the cylinder body in advance during assembly, and the shock absorber reaches the length required by assembly and is assembled. However, the shock absorber of the heavy truck is large in size, heavy in weight and large in damping force, and the manual stretching of the shock absorber is time-consuming and labor-consuming, so that the working efficiency is low.
Disclosure of Invention
In order to solve the technical problems, the utility model aims to provide a shock absorber stretching tool which can rapidly pull a piston rod of a factory shock absorber out of a cylinder body and enable the shock absorber to reach the length required by assembly, thereby meeting the assembly requirement, and being convenient to operate, time-saving and labor-saving.
In order to achieve the above purpose, the technical scheme of the utility model is as follows: the utility model provides a tensile instrument of bumper shock absorber, includes cylinder, connecting rod, support and baffle, and the piston rod and the connecting rod of cylinder are fixed and mutually perpendicular sets up, and the support is located the rear department of cylinder, installs the locating pin on it, and the tip of locating pin and connecting rod sets up relatively for the both ends of fixed bumper shock absorber, baffle are located the place ahead department of connecting rod. The cylinder acts to enable the connecting rod to pull the piston rod of the shock absorber, and the baffle is used for limiting the connecting rod to ensure the stretching length of the shock absorber. The cylinder, the support and the baffle are all fixed on the operation platform, and the installation position of the baffle is adjustable along the front-back direction for satisfying the stretching of the shock absorbers of different models.
Preferably, the rear end of the cylinder is fixed on the operation platform through a first connecting seat, a pin shaft, an inner hexagon bolt and a pin, the first connecting seats are two, the rear end of the cylinder is positioned between the two first connecting seats, the pin shaft transversely penetrates through the rear end of the cylinder and the upper parts of the two first connecting seats, and the lower part of each first connecting seat is fixed on the operation platform through the inner hexagon bolt and the pin.
Preferably, the front end of the cylinder is fixed on the operation platform through a second connecting seat and an inner hexagon bolt, the second connecting seat is of an L-shaped support structure, the side part of the second connecting seat is fixed on the front end of the cylinder through two inner hexagon bolts, and the lower part of the second connecting seat is fixed on the operation platform through two inner hexagon bolts.
Preferably, the front end of the piston rod is connected with the connecting rod through a shaft head, a threaded hole and a through hole are formed in the shaft head, the front end of the piston rod is screwed into the threaded hole and fastened through a locking nut, and the middle part of the connecting rod penetrates through the through hole and is fixed in an interference fit mode.
Preferably, the connecting rod adopts a split structure and consists of a fixed shaft and two positioning shafts, wherein the two positioning shafts are arranged at two ends of the fixed shaft through threads, and the middle part of the fixed shaft is matched with the shaft head. The split structure is easy to replace the damaged positioning shaft.
Preferably, the two support seats are symmetrically arranged along the central axis of the cylinder, and the two positioning pins are respectively opposite to the end parts of the two positioning shafts. The positioning pin and the positioning shaft corresponding to the positioning pin are respectively used for fixing two ends of the shock absorber, so that the piston rod of the shock absorber is forced.
Preferably, the support is fixed on the operation platform through two hexagon socket head cap bolts, and the locating pin is fixed on the support through threads. The locating pin is perpendicular to the mounting surface on the support, and is convenient to insert into the rear end part of the shock absorber.
Preferably, the baffle is of an L-shaped baffle structure, the lower part of the baffle is fixed on the operation platform through two inner hexagon bolts and two nuts, and the two inner hexagon bolts penetrate through two strip holes formed in the operation platform and are matched with the two nuts for installation, so that the installation position of the baffle is adjustable.
Preferably, the two elongated holes are arranged parallel to each other along the axis of the piston rod.
Preferably, two air pipes on the hand-turning air valve are connected with the air cylinder, air is input into the air cylinder through the two air pipes to provide power for the action of the air cylinder, and the hand-turning air valve is fixed on the operation platform, so that the action of the air cylinder can be controlled manually.
The shock absorber stretching tool provided by the utility model has the following beneficial effects:
1. the stretching of the shock absorber is realized by the action of the air cylinder, so that the operation is simple, and the time and the labor are saved.
2. Can stretch two shock absorbers simultaneously, improve work efficiency.
3. The shock absorber is applicable to shock absorbers of different models, has a limiting effect on stretching of the shock absorber, and ensures that the length of the shock absorber after the stretching is finished meets the assembly requirement.
Drawings
FIG. 1 is a top view of the present utility model;
FIG. 2 is a front view of the present utility model;
fig. 3 is a partial enlarged view of the portion a in the present utility model.
Description of main reference numerals:
1 air cylinder
11 a first connection base; 12 pin shafts; 13 inner hexagon bolts; 14 pin
15 a second connecting seat; 16. 17 socket head cap bolts;
18 piston rod
2 connecting rod
A 21 fixed shaft; 22 spacing axle
3 support
31 positioning pins; 32 socket head cap bolts; 33 support strip hole
4 baffle
41 socket head cap bolts; a 42 nut; 43 strip hole
5 operation platform
6 spindle nose
61 lock nut
7-hand turning air valve
8 air pipe
9 support frame
91 universal castor
10 shock absorber leaving factory
Detailed Description
The technical solutions in the embodiments of the shock absorber stretching tool provided by the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. It will be apparent that the described embodiments are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be understood that the terms "center," "lateral," "longitudinal," "front," "rear," "left," "right," "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of the present utility model.
As shown in fig. 1 and 2, the utility model provides a shock absorber stretching tool, which comprises a cylinder 1, a connecting rod 2, a support 3 and a baffle 4.
The cylinder 1 is fixed on the operation platform 5, and the rear end of the cylinder is fixed on the operation platform 5 through a first connecting seat 11, a pin shaft 12, an inner hexagon bolt 13 and a pin 14. The first connecting seat 11 is provided with two, sets up relatively, and the rear end of cylinder 1 is located between two first connecting seats 11, and round pin axle 12 transversely crosses the upper portion of cylinder 1 rear end and two first connecting seats 11, adopts interference fit mode to fix, and the lower part of every first connecting seat 11 is all fixed in on the operation platform 5 through hexagon socket head cap screw 13 and pin 14. The front end of the cylinder 1 is fixed on the operation platform 5 through a second connecting seat 15 and an inner hexagon bolt, the second connecting seat 15 is of an L-shaped support structure, the side part of the second connecting seat is fixed on the front end of the cylinder 1 through two inner hexagon bolts 16, and the lower part of the second connecting seat is fixed on the operation platform 5 through two inner hexagon bolts 17. The first connection seat 11 and the second connection seat 15 are used for mounting the cylinder 1, and support the whole cylinder 1.
As shown in fig. 3, the front end of a piston rod 18 of the cylinder 1 is connected with the connecting rod 2, and the piston rod 18 and the connecting rod 2 are arranged perpendicular to each other. Specifically, the front end of the piston rod 18 is connected with the connecting rod 2 through the shaft head 6, the shaft head 6 is provided with a threaded hole and a through hole, the front end of the piston rod 18 is screwed into the threaded hole and fastened through the locking nut 61, and the middle part of the connecting rod 2 passes through the through hole and is fixed in an interference fit mode. In the preferred embodiment, the connecting rod 2 adopts a split structure and consists of a fixed shaft 21 and two positioning shafts 22, wherein the two positioning shafts 22 are arranged at two ends of the fixed shaft 21 through threads, and the middle part of the fixed shaft 21 is matched with the shaft head 6. The positioning shaft 22 can be easily replaced once damaged.
As shown in fig. 1 and 2, two supports 3 are disposed at the rear of the cylinder 1 and symmetrically disposed along the central axis of the cylinder 1, each support 3 is provided with a positioning pin 31, and the two positioning pins 31 are disposed opposite to the ends of the two positioning shafts 22. The support 3 is fixed to the operation platform 5 by two socket head cap bolts 32, and the positioning pin 31 is fixed to the upper portion of the support 3 by threads and is perpendicular to the mounting surface on the support 3. In a preferred embodiment, two socket head cap screws 32 for fixing the support 3 are passed through support strip holes 33 provided on the operating platform 5, the support strip holes 33 being provided along the axis of the piston rod 18, so that the mounting position of the support 3 is adjustable.
As shown in fig. 2 and 3, the baffle 4 has an "L" type baffle structure, and the lower portion thereof is fixed to the operation platform 5 by two socket head cap bolts 41 and two nuts 42. The two socket head cap screws 41 pass through two strip holes 43 arranged on the operation platform 5 and are matched with two nuts 42, and the two strip holes 43 are arranged in parallel with each other along the axis of the piston rod 18, so that the installation position of the baffle 4 can be adjusted.
The existing gas transmission equipment is adopted to provide power for the cylinder 1, two air pipes 8 of a hand-turning air valve 7 of the gas transmission equipment are connected with the cylinder 1, and gas is input into the cylinder 1 through the two air pipes 8, so that a piston rod 18 acts. The hand-turning air valve 7 is fixed on the operation platform 5 through a plurality of bolts, so that the action of the air cylinder 1 is controlled manually.
The operation platform 5 is installed on the braced frame 9, four universal casters 91 with self-locking function are installed at the bottom of the braced frame 9, the whole shock absorber stretching tool can move to a target position through the four universal casters 91, and the universal casters 91 are locked when the shock absorber stretching tool works.
As shown in fig. 1, before the shock absorber stretching tool provided by the utility model is adopted, the installation position of the baffle 4 on the operation platform 5 can be adjusted according to the length requirement of the shock absorber, and the installation position of the support 3 on the operation platform 5 can be adjusted simultaneously, so that the stretched shock absorber is ensured to be in line with the installation requirement, and the piston rod 18 of the air cylinder 1 is contracted in an initial state. Then, one end of the factory damper 10 is fixed to the positioning pin 31, that is, the positioning pin 31 is inserted into the end of the factory damper 10, and the other end of the factory damper 10 (the piston rod thereof) is fixed to the stopper shaft 22, that is, the stopper shaft 22 is inserted into the end of the factory damper 10, so that the factory damper 10 is positioned and mounted. Subsequently, the manual operation opens the hand-turning air valve 7, air is delivered to the inside of the air cylinder 1, and the piston 18 of the air cylinder 1 extends forwards, so that the connecting rod 2 moves forwards synchronously, and the piston rod of the shock absorber is driven to be pulled out until the connecting rod 2 is blocked by the baffle 4, and the shock absorber reaches the assembly length. And taking down the shock absorber, manually closing the hand-operated air valve 7, and returning the piston rod 18 and the connecting rod 2 to complete the whole working process. According to the shock absorber stretching tool provided by the utility model, according to the operation, two factory shock absorbers 10 can be stretched at the same time, so that the working efficiency is greatly improved.
It should be noted that: the above description is only of the preferred embodiments of the present utility model and should not be construed as limiting the scope of the utility model at a time. Any modification, equivalent replacement, improvement, etc. which are within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims (10)

1. The utility model provides a shock absorber stretching tool, its characterized in that includes cylinder, connecting rod, support and baffle, the piston rod of cylinder with the connecting rod is fixed and mutually perpendicular sets up, the support is located the rear department of cylinder, installs the locating pin on it, the locating pin with the tip of connecting rod sets up relatively for the both ends of fixed shock absorber, the baffle is located the place ahead of connecting rod,
the cylinder, the support and the baffle are all fixed on the operation platform, and the installation position of the baffle is adjustable along the front-back direction.
2. The shock absorber drawing tool as set forth in claim 1 wherein said rear end of said cylinder is secured to said operating platform by means of first connecting seats, pins, socket head bolts and pins, said first connecting seats being provided in two, said rear end of said cylinder being located between said two first connecting seats, said pins traversing said rear end of said cylinder and upper portions of said two first connecting seats, a lower portion of each of said first connecting seats being secured to said operating platform by means of said socket head bolts and said pins.
3. The shock absorber drawing tool as set forth in claim 1 wherein said front end of said cylinder is secured to said operating platform by means of a second connecting seat and socket head cap bolts, said second connecting seat being of an "L" type support structure having sides secured to said front end of said cylinder by means of two said socket head cap bolts and lower portions secured to said operating platform by means of two said socket head cap bolts.
4. The shock absorber drawing tool as set forth in claim 1 wherein said piston rod has a front end connected to said connecting rod by a head provided with a threaded hole and a through hole, said piston rod has a front end screwed into said threaded hole and fastened by a lock nut, and said connecting rod has a middle portion passing through said through hole and being fixed by interference fit.
5. The shock absorber drawing tool as defined in claim 4, wherein said connecting rod is of a split type structure and is composed of a fixed shaft and two positioning shafts, said two positioning shafts being mounted at both ends of said fixed shaft by threads, and a middle portion of said fixed shaft being mounted in cooperation with said shaft head.
6. The shock absorber drawing tool as defined in claim 5, wherein said support is provided in two, symmetrically disposed along a central axis of said cylinder, and said two positioning pins are disposed opposite ends of said two positioning shafts, respectively.
7. The shock absorber pulling tool of claim 6, wherein said support is secured to said operating platform by two socket head cap bolts and said dowel pin is threadably secured to said support.
8. The shock absorber drawing tool as defined in claim 1, wherein said baffle is of an "L" type baffle structure, the lower portion of which is secured to said operating platform by two socket head cap bolts and two nuts, said two socket head cap bolts being mounted through two elongated holes provided in said operating platform and being mounted in cooperation with said two nuts.
9. The shock absorber extension tool as claimed in claim 8, wherein two of said elongated apertures are disposed parallel to each other along the axis of said piston rod.
10. The shock absorber extension tool as defined in claim 1, wherein two air lines on a hand valve are connected to said air cylinder, said hand valve being secured to said operating platform.
CN202320460851.9U 2023-03-13 2023-03-13 Shock absorber stretching tool Active CN219543018U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202320460851.9U CN219543018U (en) 2023-03-13 2023-03-13 Shock absorber stretching tool

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202320460851.9U CN219543018U (en) 2023-03-13 2023-03-13 Shock absorber stretching tool

Publications (1)

Publication Number Publication Date
CN219543018U true CN219543018U (en) 2023-08-18

Family

ID=87704761

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202320460851.9U Active CN219543018U (en) 2023-03-13 2023-03-13 Shock absorber stretching tool

Country Status (1)

Country Link
CN (1) CN219543018U (en)

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