阅读说明：本技术 一种直线运动蓄能减震机构 (Linear motion energy storage and shock absorption mechanism ) 是由 叶骏绅 缪鹏程 于 2020-12-26 设计创作，主要内容包括：本发明公开了一种直线运动蓄能减震机构,其包括滑动基台、保持套筒、固定齿条、齿轮、滑动齿条,滑动基台与外壳滑动连接,保持套筒与滑动基台固定连接,齿轮与保持套筒连接并与保持套筒同步运动,固定齿条的前端与前端限位机构固定连接,固定齿条和滑动齿条分别设于齿轮的两侧且均与齿轮啮合,固定齿条和滑动齿条均与保持套筒滑动连接,滑动齿条上设有配重物。本发明结构合理,利用动量守恒原理,弹簧带动输出件形成撞击瞬间,通过滑动齿条和配重物产生一个与反冲力方向相反的冲力,从而抵消掉一部分反冲力。当配重物越重,其产生的冲力越大,抵消的反冲力越大,作用于系统本体的反冲力就越小,以此达到减震的效果。(The invention discloses a linear motion energy storage and shock absorption mechanism which comprises a sliding base station, a retaining sleeve, a fixed rack, a gear and a sliding rack, wherein the sliding base station is connected with a shell in a sliding mode, the retaining sleeve is fixedly connected with the sliding base station, the gear is connected with the retaining sleeve and moves synchronously with the retaining sleeve, the front end of the fixed rack is fixedly connected with a front end limiting mechanism, the fixed rack and the sliding rack are respectively arranged on two sides of the gear and are meshed with the gear, the fixed rack and the sliding rack are both connected with the retaining sleeve in a sliding mode, and a counterweight is arranged on the sliding rack. The invention has reasonable structure, utilizes the momentum conservation principle, and the spring drives the output piece to form impact moment, and generates an impulsive force opposite to the direction of the recoil force through the sliding rack and the counterweight, thereby offsetting a part of the recoil force. When the counterweight is heavier, the generated impulsive force is larger, the offset recoil force is larger, and the recoil force acting on the system body is smaller, so that the damping effect is achieved.)

1. A linear motion energy storage and shock absorption mechanism is characterized by comprising a sliding base station, a holding sleeve, a fixed rack, a gear and a sliding rack, wherein the sliding base station is connected with a shell in a sliding mode, the holding sleeve is fixedly connected with the sliding base station, two sides of the holding sleeve are respectively connected with a front end limiting mechanism and a rear end driving mechanism through energy storage springs, the gear is connected with the holding sleeve and moves synchronously with the holding sleeve, the front end of the fixed rack is fixedly connected with the front end limiting mechanism, the fixed rack and the sliding rack are respectively arranged on two sides of the gear and are meshed with the gear, the fixed rack and the sliding rack are both connected with the holding sleeve in a sliding mode, and a counterweight is arranged on the sliding rack;

when the front end limiting mechanism is released, the energy storage spring is decompressed and drives the output piece, the energy storage spring is compressed again due to the recoil force applied to the output piece during impact, the compressed energy storage spring can drive the sliding rack and the gear to move towards the front end relative to the fixed rack, and in the moving process, the sliding rack and the counterweight can generate the impulsive force opposite to the recoil force direction, so that a part of the recoil force is offset.

2. The linear motion energy storing and shock absorbing mechanism of claim 1 wherein the fixed rack and the sliding rack each have a sliding slot, and the retaining sleeve has a retaining pin engaging the sliding slot, the retaining pin being slidable within the sliding slot.

3. The linear motion energy storing and shock absorbing mechanism of claim 2, wherein the number of retaining pins engaged with each runner is two, and the distance between two retaining pins in each runner is less than the length of the runner.

4. The linear motion energy storing and shock absorbing mechanism of claim 2 wherein the runner is a kidney slot.

5. The linear motion energy storing and shock absorbing mechanism of claim 1 wherein the counterweight is fixed to the end of the sliding rack.

6. The linear motion energy storing and shock absorbing mechanism of claim 1 wherein the gear shaft of the gear is rotationally coupled to the retaining sleeve by a bearing.

7. The linear motion energy storing and shock absorbing mechanism of claim 1 wherein the gears are spur gears.

8. The linear motion energy storing and shock absorbing mechanism of claim 1 wherein the retaining sleeve is bolted to the sliding base.

Technical Field

The invention relates to the technical field of energy storage, in particular to a linear motion energy storage and shock absorption mechanism.

Background

Energy storage mechanism is often used for transmission system, provides the spring energy of quick release, and when energy storage mechanism release energy, at the spring drive output piece formation striking moment, the system body can receive great recoil force, if this recoil force is not eliminated, it will be through system body direct action on one's body the user, this will influence the use of product and experience, has the risk of causing the injury even to the user. Therefore, there is a need to solve the above problems.

Disclosure of Invention

The invention aims to provide a linear motion energy storage and shock absorption mechanism which is reasonable in structure, can offset part of recoil force and is high in safety. The technical scheme is as follows:

in order to solve the problems, the invention provides a linear motion energy storage and damping mechanism which comprises a sliding base, a holding sleeve, a fixed rack, a gear and a sliding rack, wherein the sliding base is connected with a shell in a sliding mode, the holding sleeve is fixedly connected with the sliding base, two sides of the holding sleeve are respectively connected with a front end limiting mechanism and a rear end driving mechanism through energy storage springs, the gear is connected with the holding sleeve and moves synchronously with the holding sleeve, the front end of the fixed rack is fixedly connected with the front end limiting mechanism, the fixed rack and the sliding rack are respectively arranged on two sides of the gear and are meshed with the gear, the fixed rack and the sliding rack are both connected with the holding sleeve in a sliding mode, and a counterweight is arranged on the sliding rack;

when the front end limiting mechanism is released, the energy storage spring is decompressed and drives the output piece, the energy storage spring is compressed again due to the recoil force applied to the output piece during impact, the compressed energy storage spring can drive the sliding rack and the gear to move towards the front end relative to the fixed rack, and in the moving process, the sliding rack and the counterweight can generate the impulsive force opposite to the recoil force direction, so that a part of the recoil force is offset.

As a further improvement of the present invention, sliding grooves are provided on both the fixed rack and the sliding rack, and a retaining pin engaged with the sliding grooves is provided on the retaining sleeve, and the retaining pin can slide in the sliding grooves.

As a further improvement of the present invention, the number of the holding pins engaged with each of the slide grooves is two, and the distance between the two holding pins in each of the slide grooves is smaller than the length of the slide groove.

As a further improvement of the invention, the sliding groove is a waist-shaped groove.

As a further improvement of the present invention, the weight is fixed to an end of the sliding rack.

As a further development of the invention, the gear wheel shaft of the gear wheel is rotationally connected to the retaining sleeve by means of a bearing.

As a further improvement of the present invention, the gear is a spur gear.

As a further improvement of the present invention, the holding sleeve is connected to the slide base by a bolt.

The invention has the beneficial effects that:

the linear motion energy-storage damping mechanism is reasonable in structure, the output piece is driven by the spring to form impact moment by utilizing the momentum conservation principle, and an impulsive force opposite to the direction of the recoil force is generated by the sliding rack and the counterweight, so that a part of the recoil force is counteracted. When the counterweight is heavier, the generated impulsive force is larger, the offset recoil force is larger, and the recoil force acting on the system body is smaller, so that the damping effect is achieved.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical means of the present invention more clearly understood, the present invention may be implemented in accordance with the content of the description, and in order to make the above and other objects, features, and advantages of the present invention more clearly understood, the following preferred embodiments are described in detail with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic view of a linear motion energy storing and damping mechanism in a first state in a preferred embodiment of the present invention;

FIG. 2 is a cross-sectional view taken along A-A of FIG. 1;

fig. 3 is a schematic view of the linear motion energy-storing and shock-absorbing mechanism in the second state in the preferred embodiment of the present invention.

Description of the labeling: 100. a housing; 1. an energy storage spring; 2. a front end limiting mechanism; 10. a sliding base; 20. a retaining sleeve; 21. a retaining pin; 30. fixing a rack; 31. a chute; 40. a gear; 41. a gear shaft; 50. a sliding rack; 60. and a counterweight.

Detailed Description

The present invention is further described below in conjunction with the following figures and specific examples so that those skilled in the art may better understand the present invention and practice it, but the examples are not intended to limit the present invention.

As shown in fig. 1 to 3, the linear motion energy-storing and shock-absorbing mechanism in the preferred embodiment of the present invention includes a sliding base 10, a holding sleeve 20, a fixed rack 30, a gear 40, and a sliding rack 50.

The sliding base station 10 is slidably connected with the housing 100, the holding sleeve 20 is fixedly connected with the sliding base station 10, two sides of the holding sleeve 20 are respectively connected with the front end limiting mechanism 2 and the rear end driving mechanism through the energy storage spring 1, the gear 40 is connected with the holding sleeve 20 and moves synchronously with the holding sleeve 20, the front end of the fixed rack 30 is fixedly connected with the front end limiting mechanism 2, the fixed rack 30 and the sliding rack 50 are respectively arranged on two sides of the gear 40 and are both meshed with the gear 40, the fixed rack 30 and the sliding rack 50 are both slidably connected with the holding sleeve 20, and the sliding rack 50 is provided with a counterweight 60.

When the front end limiting mechanism 2 is released, the energy storage spring 1 is decompressed and drives an output member, the recoil force applied to the output member during impact enables the energy storage spring 1 to be compressed again, the compressed energy storage spring 1 can drive the sliding rack 50 and the gear 40 to move towards the front end relative to the fixed rack 30, and in the moving process, the sliding rack 50 and the counterweight 60 can generate the impulsive force opposite to the direction of the recoil force, so that a part of the recoil force is offset.

In some embodiments, the fixed rack 30 and the sliding rack 50 are both provided with a sliding slot 31, and the retaining sleeve 20 is provided with a retaining pin 21 engaged with the sliding slot 31, wherein the retaining pin 21 can slide in the sliding slot 31. Optionally, the number of the retaining pins 21 engaged with each sliding slot 31 is two, and the distance between two retaining pins 21 in each sliding slot 31 is smaller than the length of the sliding slot 31, so as to ensure that the retaining pins 21 can slide relative to the sliding slot 31. Further, the sliding groove 31 is a kidney-shaped groove.

The linear motion energy-storage damping mechanism is arranged in the force-storage mechanism, so that the overall volume of the product is greatly saved.

In some embodiments, the counterweight 60 is fixed to the end of the sliding rack 50.

In some embodiments, the gear shaft 41 of the gear 40 is rotatably connected to the retaining sleeve 20 by a bearing. The gear 40 can be rotated relative to the holding sleeve 20 while ensuring that the gear 40 moves linearly in synchronism with the holding sleeve 20.

Optionally, the gear 40 is a spur gear 40, and both the fixed rack 30 and the sliding rack 50 are spur racks.

Alternatively, the holding sleeve 20 is connected to the sliding base 10 by bolts, and is detachable while ensuring structural stability.

As shown in fig. 2, alternatively, the sliding base 10 and the holding sleeve 20 are both of a ring structure, the holding sleeve 20 is disposed inside the sliding base 10, and the fixed rack 30, the gear 40, and the sliding rack 50 are disposed inside the holding sleeve 20. The balance of radial stress is ensured, and the stability of the structure is further ensured.

FIG. 1 is a schematic view of the linear motion energy-storing and shock-absorbing mechanism of the present invention when the spring is in the first state (free state); fig. 3 is a schematic view of the linear motion energy-storing and shock-absorbing mechanism of the present invention when the spring is in the second state (the extreme pressure state), and it can be seen that, during the process from the free state to the extreme pressure state of the spring, the sliding base 10 and the retaining sleeve 20 drive the gear 40 to move towards the front end relative to the fixed rack 30, at this time, the gear 40 displaces X relative to the fixed rack 30, the sliding rack 50 displaces 2X relative to the fixed rack 30, the retaining pin in the fixed rack 30 moves from the end of the chute to the front end, and the retaining pin in the sliding rack 50 moves from the front end of the chute to the end.

When the front end limiting mechanism 2 is released during working, the energy storage spring 1 is decompressed and drives the output member to move forwards, the recoil force generated at the moment that the output member impacts a stressed object enables the energy storage spring 1 to be compressed again, the compressed energy storage spring 1 can drive the sliding rack 50 and the gear 40 to move forwards relative to the fixed rack 30, and in the moving process, the sliding rack 50 and the counterweight 60 can generate the impulsive force opposite to the direction of the recoil force, so that a part of the recoil force is counteracted.

The linear motion energy-storage damping mechanism is reasonable in structure, the output piece is driven by the spring to form impact moment by utilizing the momentum conservation principle, and an impulsive force opposite to the direction of the recoil force is generated by the sliding rack and the counterweight, so that a part of the recoil force is counteracted. When the counterweight is heavier, the generated impulsive force is larger, the offset recoil force is larger, and the recoil force acting on the system body is smaller, so that the damping effect is achieved.

The above embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. The equivalent substitution or change made by the technical personnel in the technical field on the basis of the invention is all within the protection scope of the invention. The protection scope of the invention is subject to the claims.