阅读说明：本技术 一种减震器弹簧拆卸通用气动装置 (Universal pneumatic device for disassembling shock absorber spring ) 是由 周占全 武瑞华 陈绪强 崔许刚 刘攀 李旭 周佳彬 付红强 彭远盛 吕文昭 沈泽 于 2021-09-28 设计创作，主要内容包括：本发明公开了一种减震器弹簧拆卸通用气动装置,包括底座、箱体、第一省力杠杆机构和第二省力杠杆机构；第一省力杠杆机构包括主动小链条齿轮、第一大链条齿轮、第一大滑轮和第一钢丝绳,第一钢丝绳上连接有第一挂钩,箱体的外壁上设置有棘轮爪,棘轮爪与主动小链条齿轮接触；第二省力杠杆机构包括从动小链条齿轮、第二大链条齿轮、第二大滑轮和第二钢丝绳,第二钢丝绳的端部连接有第二挂钩,第二挂钩与第二大滑轮之间设置有导向滑轮,导向滑轮设置在箱体内壁靠近开口处。本发明采用上述结构能够快速安全的拆卸大多数减震器弹簧,避免汽车维修过程中带来的危险和不便,降低了新车在开发过程中的试验费用,缩短了试验周期。(The invention discloses a universal pneumatic device for disassembling a shock absorber spring, which comprises a base, a box body, a first labor-saving lever mechanism and a second labor-saving lever mechanism, wherein the base is provided with a first end and a second end; the first labor-saving lever mechanism comprises a driving small chain gear, a first large pulley and a first steel wire rope, the first steel wire rope is connected with a first hook, the outer wall of the box body is provided with a ratchet claw, and the ratchet claw is in contact with the driving small chain gear; the second labor-saving lever mechanism comprises a driven small chain gear, a second large pulley and a second steel wire rope, the end part of the second steel wire rope is connected with a second hook, a guide pulley is arranged between the second hook and the second large pulley, and the guide pulley is arranged on the inner wall of the box body and close to the opening. By adopting the structure, most of the shock absorber springs can be quickly and safely disassembled, the danger and inconvenience brought by the automobile maintenance process are avoided, the test cost of a new automobile in the development process is reduced, and the test period is shortened.)

1. The utility model provides a general pneumatic means is dismantled to bumper shock absorber spring which characterized in that:

the device comprises a base, a box body arranged on the base, a first labor-saving lever mechanism arranged on one side of the box body and a second labor-saving lever mechanism arranged on the other side of the box body, wherein the second labor-saving lever mechanism is connected with the first labor-saving lever mechanism;

the first labor-saving lever mechanism comprises a small driving chain gear, a first large chain gear connected with the small driving chain gear, a first large pulley connected with the first large chain gear and a first steel wire rope wound on the first large pulley, wherein a first hook is connected onto the first steel wire rope, a ratchet claw is arranged on the outer wall of the box body and is in contact with the small driving chain gear;

the second labor-saving lever mechanism comprises a driven small chain gear connected with the driving small chain gear, a second large chain gear connected with the driven small chain gear, a second large pulley connected with the second large chain gear and a second steel wire rope wound on the second large pulley, wherein a second hook is connected to the end of the second steel wire rope, a guide pulley for supporting the second steel wire rope is arranged between the second hook and the second large pulley, and the guide pulley is arranged on the inner wall of the box body and close to the opening;

pin holes for inserting the safety pins are reserved on the first large chain gear and the second large chain gear.

2. The pneumatic device for shock absorber spring dismounting, according to claim 1, is characterized in that: the driving small chain gear and the driven small chain gear are symmetrically arranged on the outer walls of the two sides of the box body, and a pneumatic wrench socket is arranged on the driving small chain gear.

3. The pneumatic device for shock absorber spring dismounting, according to claim 2, is characterized in that: the driven small chain gear is connected with the driving small chain gear through a connecting shaft.

4. The pneumatic device for shock absorber spring dismounting, according to claim 3, is characterized in that: the first large chain gear and the second large chain gear are symmetrically arranged on the outer walls of the two sides of the box body, and the first large chain gear and the driving small chain gear are connected through chains, and the second large chain gear and the driven small chain gear are connected through chains.

5. The pneumatic device for shock absorber spring dismounting, according to claim 4, is characterized in that: the first large pulley and the second large pulley are symmetrically arranged on the inner walls of two sides of the box body.

6. The pneumatic device for shock absorber spring dismounting, according to claim 5, is characterized in that: the base with be connected through a plurality of bracing piece between the box, a plurality of the bracing piece is cross arrangement.

7. The pneumatic device for shock absorber spring dismounting, according to claim 6, is characterized in that: the first hook is rigidly connected with the first steel wire rope, and the second hook is rigidly connected with the second steel wire rope.

Technical Field

The invention relates to the technical field of automobile shock absorber disassembling tools, in particular to a universal pneumatic device for disassembling a shock absorber spring.

Background

In most auto repair processes, only need to change the bumper shock absorber, need not change coil spring, at this moment just need take coil spring to disassemble the bumper shock absorber, generally have very big pretightning force because of coil spring after assembling the bumper shock absorber, dismantle inconvenient, and kick-back fast because of the spring, easily take place danger. In the chassis debugging or the test process of automobile factory, need frequently to change bumper shock absorber and spring, the different combinations of a large amount of bumper shock absorbers of reservation and springs are all required in every experiment, and experimental cost is high, and spare part preparation cycle is long, causes the wasting of resources. In view of the above, it is desirable to design a universal pneumatic device for shock absorber spring disassembly.

Disclosure of Invention

The invention aims to provide a universal pneumatic device for disassembling shock absorber springs, which can quickly and safely disassemble most shock absorber springs, avoid the danger and inconvenience brought by the automobile maintenance process, reduce the test cost of a new automobile in the development process and shorten the test period.

In order to achieve the purpose, the invention provides a universal pneumatic device for disassembling a shock absorber spring, which comprises a base, a box body arranged on the base, a first labor-saving lever mechanism arranged on one side of the box body and a second labor-saving lever mechanism arranged on the other side of the box body, wherein the second labor-saving lever mechanism is connected with the first labor-saving lever mechanism;

the first labor-saving lever mechanism comprises a small driving chain gear, a first large chain gear connected with the small driving chain gear, a first large pulley connected with the first large chain gear and a first steel wire rope wound on the first large pulley, wherein a first hook is connected onto the first steel wire rope, a ratchet claw is arranged on the outer wall of the box body and is in contact with the small driving chain gear;

the second labor-saving lever mechanism comprises a driven small chain gear connected with the driving small chain gear, a second large chain gear connected with the driven small chain gear, a second large pulley connected with the second large chain gear and a second steel wire rope wound on the second large pulley, wherein a second hook is connected to the end of the second steel wire rope, a guide pulley for supporting the second steel wire rope is arranged between the second hook and the second large pulley, and the guide pulley is arranged on the inner wall of the box body and close to the opening;

pin holes for inserting the safety pins are reserved on the first large chain gear and the second large chain gear.

Preferably, the driving small chain gear and the driven small chain gear are symmetrically arranged on the outer walls of the two sides of the box body, and a pneumatic wrench socket is arranged on the driving small chain gear.

Preferably, the driven small chain gear is connected with the driving small chain gear through a connecting shaft.

Preferably, the first large chain gear and the second large chain gear are symmetrically arranged on the outer walls of the two sides of the box body, and the first large chain gear and the driving small chain gear are connected through chains, and the second large chain gear and the driven small chain gear are connected through chains.

Preferably, the first large pulley and the second large pulley are symmetrically arranged on the inner walls of two sides of the box body.

Preferably, the base is connected with the box body through a plurality of support rods, and the support rods are arranged in a crossed manner.

Preferably, the first hook and the first steel wire rope are rigidly connected, and the second hook and the second steel wire rope are rigidly connected.

Therefore, the universal pneumatic device for disassembling the shock absorber spring, which adopts the structure, can quickly and safely disassemble most shock absorber springs, avoid the danger and inconvenience brought by the automobile maintenance process, reduce the test cost of a new automobile in the development process and shorten the test period.

The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.

Drawings

FIG. 1 is a schematic structural diagram of an embodiment of a universal pneumatic device for disassembling a shock absorber spring according to the present invention;

FIG. 2 is a left side view of an embodiment of a universal pneumatic device for shock absorber spring removal of the present invention;

FIG. 3 is a right side view of an embodiment of the universal pneumatic device for shock absorber spring removal of the present invention;

FIG. 4 is a front view of an embodiment of a universal pneumatic device for shock absorber spring removal of the present invention;

FIG. 5 is a cross-sectional view taken along line C-C of an embodiment of a universal pneumatic device for shock absorber spring removal in accordance with the present invention;

FIG. 6 is a sectional view taken along the direction D-D of an embodiment of a universal pneumatic device for shock absorber spring removal according to the present invention.

Detailed Description

The technical solution of the present invention is further illustrated by the accompanying drawings and examples.

Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this invention belongs. The use of "first," "second," and similar terms in the present application do not denote any order, quantity, or importance, but rather the terms are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.

Examples

Fig. 1 is a schematic structural view of an embodiment of a universal pneumatic device for shock absorber spring disassembly according to the present invention, fig. 2 is a left side view of an embodiment of a universal pneumatic device for shock absorber spring disassembly according to the present invention, fig. 3 is a right side view of an embodiment of a universal pneumatic device for shock absorber spring disassembly according to the present invention, fig. 4 is a front view of an embodiment of a universal pneumatic device for shock absorber spring disassembly according to the present invention, fig. 5 is a C-C sectional view of an embodiment of a universal pneumatic device for shock absorber spring disassembly according to the present invention, and fig. 6 is a D-D sectional view of an embodiment of a universal pneumatic device for shock absorber spring disassembly according to the present invention. As shown in the figure, the invention provides a universal pneumatic device for dismounting a shock absorber spring, which comprises a base 1, a box body 2 arranged on the base 1, a first labor-saving lever mechanism arranged on one side of the box body 2 and a second labor-saving lever mechanism arranged on the other side of the box body 2, wherein the second labor-saving lever mechanism is connected with the first labor-saving lever mechanism. Through setting up laborsaving lever mechanism of first laborsaving lever mechanism and second, can guarantee not need to apply very big power and overcome the elasticity of spring at whole dismantlement in-process, whole use safety and laborsaving. The physiological lever mechanism with the small gear driving the big gear is adopted, so that the whole process is labor-saving and light, and can be easily finished even if purely manual operation is adopted. Can satisfy and dismantle the assembly part of most coil spring bumper shock absorbers to there are ratchet and safety pin dual fail-safe, be unlikely to take place danger because of the spring rebounds suddenly when guaranteeing to dismantle the spring.

The first labor-saving lever mechanism comprises a driving small chain gear 3, a first large chain gear 4 connected with the driving small chain gear 3, a first large pulley 5 connected with the first large chain gear 4 and a first steel wire rope 6 wound on the first large pulley 5, a first hook 7 is connected onto the first steel wire rope 6, a ratchet claw 8 is arranged on the outer wall of the box body 2, and the ratchet claw 8 is in contact with the driving small chain gear 3. The second labor-saving lever mechanism comprises a driven small chain gear 9 connected with the driving small chain gear 3, a second large chain gear 10 connected with the driven small chain gear 9, a second large pulley 11 connected with the second large chain gear 10 and a second steel wire rope 12 wound on the second large pulley 11, wherein the end part of the second steel wire rope 12 is connected with a second hook 13, a guide pulley 14 supporting the second steel wire rope 12 is arranged between the second hook 13 and the second large pulley 11, and the guide pulley 14 is arranged on the inner wall of the box body 2 and close to the opening; pin holes 16 for inserting the safety pins 15 are reserved on the first large chain gear 4 and the second large chain gear 10.

The driving small chain gear 3 and the driven small chain gear 9 are symmetrically arranged on the outer walls of the two sides of the box body 2, and a pneumatic wrench socket is arranged on the driving small chain gear 3. Driven little chain gear 9 passes through the connecting shaft with initiative little chain gear 3, and transmission efficiency is high, has guaranteed the synchronous rotation of the initiative little chain gear of both sides and driven little chain gear, has guaranteed simultaneously that first wire rope and second wire rope tighten up in step, avoids leading to unable dismantlement or leading to dangerous the emergence because of wire rope pine takes off because of one side wire rope tightens up.

First big chain gear 4 and the big chain gear 10 symmetry of second set up on the both sides outer wall of box 2, all are connected through chain 17 between first big chain gear 4 and the initiative small chain gear 3, between the big chain gear 10 of second and the driven small chain gear 9.

The first big pulley 5 and the second big pulley 11 are symmetrically arranged on the inner walls of two sides of the box body 2.

The base 1 is connected with the box body 2 through a plurality of support rods 18, and the support rods 18 are arranged in a crossed mode. The first hook 7 and the first steel wire rope 6 are rigidly connected, and the second hook 13 and the second steel wire rope 12 are rigidly connected.

The structure omits the driving of a motor, a pneumatic wrench socket reserved on the driving small chain gear can be driven by a pneumatic wrench or a bent handle wrench to drive the driving small chain gear to rotate, when in use, the first hook and the second hook are firstly hung on the shock absorber spring, the driving small chain gear is driven to drive the driven small chain gear to rotate, the driving small chain gear and the driven small chain gear simultaneously drive respective chains to rotate, the respective chains respectively drive the first large chain gear and the second large chain gear to rotate, thereby driving the first large pulley and the second large pulley to rotate, the first large pulley and the second large pulley can be rotated to tighten up the first steel wire rope and the second steel wire rope, the second steel wire rope is in a diagonal position with the second steel wire rope after passing through the guide pulley, and the condition that one side is shrunk in the process of tensioning the spring is ensured to not occur. In the process of tensioning the spring, the ratchet pawl can constantly ensure that the small driving chain gear cannot rebound and reverse, and after the spring is tensioned in place, the safety pin penetrates through the reserved holes in the first large chain gear and the second large chain gear and is inserted into the pin hole in the box body, so that the double-safety function is realized together with the ratchet pawl.

After the disassembly is completed, the safety pins on the two sides are pulled out, then the driving small chain gear rotates by a small angle, the ratchet pawl which is sent out is pulled out, the ratchet pawl can droop under the action of gravity and does not work any more, and the first steel wire rope and the second steel wire rope which strain the spring are released slowly.

Therefore, the universal pneumatic device for disassembling the shock absorber spring, which adopts the structure, can quickly and safely disassemble most shock absorber springs, avoid the danger and inconvenience brought by the automobile maintenance process, reduce the test cost of a new automobile in the development process and shorten the test period.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting the same, and although the present invention is described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that: modifications and equivalents may be made to the invention without departing from the spirit and scope of the invention.