CN210318305U - Single-tube shock absorber for steering gear - Google Patents

Abstract

The utility model discloses a single-cylinder shock absorber for steering engine, the hydro-cylinder comprises an oil cylinder, the both ends of hydro-cylinder have first connecting seat and second connecting seat respectively, first connecting seat fixed connection is on the hydro-cylinder, the second connecting seat is connected with the piston rod, piston rod movably sets up in the hydro-cylinder, the inside floating piston that is provided with of hydro-cylinder, floating piston separates the hydro-cylinder and is first inner chamber and second inner chamber, the piston rod is arranged in first inner chamber, be connected with the piston valve on the piston rod, be provided with the gasbag in the second inner chamber, the oil duct that has many slopes to set up on the piston valve, the piston rod is provided with first magnetic path in one side towards floating piston, floating piston is last be equipped with first magnetic path complex second magnetic path, first magnetic path and second magnetic. The utility model has the advantages of simple structure and reasonable design, can effectively avoid appearing the idle running in the hydro-cylinder, can improve the thermal transformation efficiency of shock attenuation oil simultaneously to avoid piston rod and floating piston to take place violent collision, effectively improve its life.

Description

Single-tube shock absorber for steering gear

Technical Field

The utility model relates to a bumper shock absorber, concretely relates to single section of thick bamboo bumper shock absorber for steering engine.

Background

The shock absorber is used for inhibiting the shock when the elastic element rebounds after absorbing shock and the impact from the road surface. The damping device is widely applied to automobiles and is used for accelerating the attenuation of the vibration of a frame and an automobile body so as to improve the driving smoothness of the automobiles. One type of shock absorber is a single tube shock absorber used in a steering engine, which has the following disadvantages: 1. the single-cylinder shock absorber on the steering engine is usually transversely arranged, when a piston rod moves, the space inside the oil cylinder is enlarged, so that idle stroke inside the oil cylinder is caused, and the normal use of the shock absorber is influenced; 2. the thermal conversion efficiency of the shock absorption oil passing through the piston valve is limited, and the rapid conversion and elimination of the vibration force cannot be realized; 3. the piston rod may collide with the floating piston in the oil cylinder, so that the piston rod and the floating piston are deformed and even damaged, and the normal operation of the shock absorber is affected.

Disclosure of Invention

In view of the not enough of background art, the utility model aims to solve the technical problem that a can effectively avoid appearing the idle stroke in the hydro-cylinder, can improve the thermal transformation efficiency of shock attenuation oil simultaneously to avoid piston rod and floating piston to take place violent collision, effectively improve its life's single-tube shock absorber for steering engine.

Therefore, the utility model discloses an adopt following scheme to realize:

single-tube shock absorber for steering engine, including the hydro-cylinder, the both ends of hydro-cylinder have first connecting seat and second connecting seat respectively, first connecting seat fixed connection is on the hydro-cylinder, the second connecting seat is connected with the piston rod, the piston rod movably sets up in the hydro-cylinder, the inside floating piston that is provided with of hydro-cylinder, floating piston will the hydro-cylinder is separated and is first inner chamber and second inner chamber, the piston rod is located in the first inner chamber, be connected with piston valve, its characterized in that on the piston rod: the air bag is arranged in the second inner cavity, the piston valve is provided with a plurality of obliquely arranged oil passages, a first magnetic block is arranged on one side of the piston rod facing the floating piston, a second magnetic block matched with the first magnetic block is arranged on the floating piston, and the first magnetic block and the second magnetic block are mutually repelled.

The first magnetic block is fixedly connected to the piston rod through a fastener, and the second magnetic block is glued on the floating piston.

Adopt above-mentioned technical scheme, the utility model discloses an advantage does: 1. the air bag is arranged in the second inner cavity, when the piston rod is pressed into the oil cylinder, the floating piston extrudes the air bag under the extrusion of the damping oil in the first inner cavity, so that the air bag can play a certain auxiliary buffering role on the action of the piston rod, when most of the piston rod is stretched out of the oil cylinder, the volume of the oil cylinder is increased, the extrusion force applied to the air bag is reduced, the air bag is automatically increased, and the floating piston is extruded to move towards the piston rod, so that the idle stroke in the oil cylinder is avoided; 2. because the piston valve is provided with the plurality of oil passages which are obliquely arranged, the contact area between the shock absorber and the oil passages of the piston valve can be effectively increased, so that more heat energy can be generated when shock absorption oil passes through the piston valve, and the efficiency of converting shock force into heat energy is further improved; 3. through set up the first, the second magnetic path that repulse each other on piston rod and floating piston respectively, when guaranteeing that the piston rod moves towards floating piston, the magnetic repulsion between first, the second magnetic path can at first promote floating piston and remove, and then can effectively avoid piston rod and floating piston direct collision, guarantees the two and is difficult for taking place to damage, improves the life of bumper shock absorber greatly.

Drawings

The utility model discloses there is following figure:

fig. 1 is a schematic structural view of the present invention;

fig. 2 is a partially enlarged view of the point a in fig. 1.

Detailed Description

As shown in the figures, the utility model discloses a single-cylinder shock absorber for steering engine, including the hydro-cylinder 3, the both ends of hydro-cylinder 3 have first connecting seat 7 and second connecting seat 1 respectively, first connecting seat 7 is fixed connection on hydro-cylinder 3, second connecting seat 1 is connected with piston rod 2, piston rod 2 is movably set up in hydro-cylinder 3, the inside floating piston 5 that is provided with of hydro-cylinder 3, floating piston 5 separates hydro-cylinder 3 to be first inner chamber 9 and second inner chamber 8, piston rod 2 is located first inner chamber 9, be connected with piston valve 4 on the piston rod 2, be provided with gasbag 6 in second inner chamber 8, when piston rod 2 most is impressed inside hydro-cylinder 3, floating piston 5 extrudes gasbag 6 under the extrusion of damping oil in first inner chamber, make it can play certain supplementary cushioning effect to the action of piston rod 2, when piston rod 2 most is stretched out of hydro-cylinder, the volume of the oil cylinder 3 is increased, the extrusion force of the air bag 6 is reduced, the air bag 6 can be automatically increased, the floating piston 5 is extruded to move towards the piston rod 2, idle stroke in the oil cylinder 3 is avoided, the piston valve 4 is provided with a plurality of obliquely arranged oil ducts 10, the contact area between a shock absorber and the oil ducts of the piston valve can be effectively increased, so that shock absorbing oil can generate more heat energy when passing through the piston valve, the efficiency of converting shock force into heat energy is improved, one side of the piston rod 2 facing the floating piston 5 is provided with a first magnetic block 12, the floating piston 5 is provided with a second magnetic block 13 matched with the first magnetic block 12, the first magnetic block 12 and the second magnetic block 13 repel each other, it is ensured that when the piston rod 2 moves towards the floating piston 5, the magnetic repulsion force between the first magnetic block and the second magnetic block can firstly push the floating piston 5 to move, and further direct collision between the piston rod 2 and the floating piston 5, the shock absorber and the base are not easy to damage, and the service life of the shock absorber is greatly prolonged. Specifically, the first magnetic block 12 is fixedly connected to the piston rod 2 through a fastener 11, and the second magnetic block 13 is adhered to the floating piston 5 through a strong glue.

Claims (2)

1. Single-tube shock absorber for steering engine, including the hydro-cylinder, the both ends of hydro-cylinder have first connecting seat and second connecting seat respectively, first connecting seat fixed connection is on the hydro-cylinder, the second connecting seat is connected with the piston rod, the piston rod movably sets up in the hydro-cylinder, the inside floating piston that is provided with of hydro-cylinder, floating piston will the hydro-cylinder is separated and is first inner chamber and second inner chamber, the piston rod is located in the first inner chamber, be connected with piston valve, its characterized in that on the piston rod: the air bag is arranged in the second inner cavity, the piston valve is provided with a plurality of obliquely arranged oil passages, a first magnetic block is arranged on one side of the piston rod facing the floating piston, a second magnetic block matched with the first magnetic block is arranged on the floating piston, and the first magnetic block and the second magnetic block are mutually repelled.

2. The mono-tube damper for steering gear according to claim 1, wherein said first magnet is fixedly attached to said piston rod by a fastener, and said second magnet is glued to said floating piston.

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