CN207539232U - A kind of spring buffer pad - Google Patents

Abstract

The utility model discloses a kind of spring buffer pads, including the rebasing circle contacted with can be movable relatively the contact surface of component, rebasing circle is the circular ring shape being adapted to spring end face, the inside of rebasing circle is equipped with upwards to the interior limiting side wall in center of circle direction, and the outside of rebasing circle is equipped with upwards to the outer limiting side wall of center of circle negative direction.The beneficial effects of the utility model are：Good limit effect can be formed to the lower end of spring, thoroughly prevent and break away.

Description

A kind of spring buffer pad

Technical field

The utility model belongs to damper element field, specifically a kind of spring buffer pad.

Background technology

The working condition of conventional helical spring, is to overlap one respectively with its both ends to can be movable relatively component, can be opposite The relative distance of moving component reduces, and spring is caused to be compressed, so as to form accumulation of energy, and then to can be movable relatively the opposite of component Distance, which reduces, forms resistance, plays elastic reaction.When the relative distance that can be movable relatively component becomes larger, the elastic force of spring is released It puts, is then restored to nature.At this time if frictional force is sufficiently small between spring end face and the contact surface that can be movable relatively component, Lateral displacement will be generated to a certain extent, makes the position off-design position of spring, and elastic direction off-design direction is made It can not be fully achieved into design idea, danger can be also caused under certain particular surroundings.Chinese patent literature CN206221565U, " spring buffer mat structure " has been spaced apart it on June 6th, 2017, which is connected in the fixed plate of motor-operating mechanism, the knot Structure includes mandrel, spring, stainless steel pad and is mutually permanently connected successively, and the mandrel, spring, stainless steel pad concentricity are less than 2 millis Rice.The similar class formation, devises a spring buffer pad, to spring between spring and the contact surface that can be movable relatively component End face and can be movable relatively the contact surface of component and be respectively provided with good frictional force, make spring in the cycle of compression-reset always Existing position is kept not deviate.But in the program, the contact surface between spring buffer pad upper surface and lower spring end face is only It is enclosed for lower spring end face one, frictional force between the two is still not big enough, still there is the risk of sideslip.

Invention content

The utility model technical issues that need to address are that existing spring buffer pad is bad to the limit effect of spring, from And a kind of spring buffer pad is provided, good limit effect can be formed to the lower end of spring, thoroughly prevents and breaks away.

In order to realize goal of the invention, the utility model adopts the following technical solution：A kind of spring buffer pad, including with can phase To the rebasing circle that the contact surface of moving component contacts, rebasing circle is the circular ring shape being adapted to spring end face, is set on the inside of rebasing circle Have upwards to the interior limiting side wall in center of circle direction, the outside of rebasing circle is equipped with upwards to the outer limiting side wall of center of circle negative direction.

The spring buffer pad of this programme design, still retains the rebasing circle of traditional circular ring shape, rebasing circle side with can phase The contact surface of moving component is contacted, opposite side is contacted with spring end face.On this basis, a circle is devised on the inside of rebasing circle Upwards to the interior limiting side wall in center of circle direction, a circle is devised upwards to the outer limiting side of center of circle negative direction on the outside of rebasing circle Wall, as soon as make the annular groove of interior limiting side wall, rebasing circle, outer limiting side wall three formation opening upwards, spring end steel wire Adaptation is socketed in the annular groove.Design in this way makes spring end complete by interior limiting side wall and outer limiting side wall Limiting, under the premise of limiting side wall and outer limiting side wall limiting effectively inside, spring would be impossible to sidesway occur, it is achieved thereby that Goal of the invention.

Preferably, the cross sectional shape of groove formed between the interior limiting side wall, outer limiting side wall and rebasing circle with The cross sectional shape adaptation of spring end steel wire.By cutting for the groove formed between interior limiting side wall, outer limiting side wall and rebasing circle Face shape is designed as being adapted to the cross sectional shape of spring end steel wire, can make groove to the adaptation effect of spring end steel wire more It is good, it can not only keep lateral Displacement effect, moreover it is possible to obtain better buffering effect, extend the service life of cushion pad.

Preferably, the height of the interior limiting side wall is higher than outer limiting side wall.Such design, convenient for assembling, safeguarding Maintenance and replacement.

Preferably, the upper end of the outer limiting side wall is equipped with limit protrusion to what center of circle direction was stretched out.The limit protrusion The top of spring end steel wire is stuck in, can be formd with barrier end termination steel wire from the i.e. axial abjection in top to the further of spring Limiting, improves integrated effect of the spring buffer pad with spring.Limit protrusion can be circumferentially a whole circle or Circumferentially discontinuously it is distributed.

In conclusion the beneficial effects of the utility model are：Good limit effect can be formed to the lower end of spring, it is thorough Bottom, which is prevented, breaks away.

Description of the drawings

Fig. 1 is the axonometric drawing of the utility model.

Fig. 2 is the vertical view of the utility model.

Fig. 3 is the A-A sectional views of Fig. 2.

Wherein：1 rebasing circle, 2 interior limiting side walls, 3 limit side wall, 4 limit protrusions outside.

Specific embodiment

The utility model is further described with specific embodiment below in conjunction with the accompanying drawings.

Embodiment as shown in Figure 1 is a kind of spring buffer pad.The spring buffer pad is included with can be movable relatively component The rebasing circle 1 of contact surface contact, the inside of rebasing circle are equipped with upwards to the interior limiting side wall 2 in center of circle direction, the outside of rebasing circle Equipped with the groove upwards to the outer limiting side wall 3 of center of circle negative direction, formed between interior limiting side wall, outer limiting side wall and rebasing circle Cross sectional shape be adapted to the cross sectional shape of spring end steel wire.In this example, the spring steel wire of adaptation is circular, therefore groove The cross sectional shape of bottom is also the semicircle being adapted to therewith.The height of interior limiting side wall is higher than outer limiting side wall.Outer limiting side wall Upper end be equipped with limit protrusion 4 to what center of circle direction was stretched out, limit protrusion can be a circumferentially whole circle or along circle What week was discontinuously distributed, be a circumferentially whole circle in this example.

The spring buffer pad of this example, the lower face of rebasing circle are contacted with can be movable relatively the contact surface of component, interior limiting side The groove formed between wall, outer limiting side wall and rebasing circle is adapted to the cross sectional shape of spring end steel wire, makes spring lateral It is firmly limited, is not in sidesway.

Claims (4)

1. a kind of spring buffer pad, including the rebasing circle contacted with can be movable relatively the contact surface of component（1）, it is rebasing circle be and bullet The circular ring shape of spring end face adaptation, it is characterized in that, the inside of rebasing circle is equipped with upwards to the interior limiting side wall in center of circle direction（2）, pad The outside of foundation ring is equipped with upwards to the outer limiting side wall of center of circle negative direction（3）.

2. a kind of spring buffer pad according to claim 1, it is characterized in that, the interior limiting side wall, outer limiting side wall and The cross sectional shape of the groove formed between rebasing circle is adapted to the cross sectional shape of spring end steel wire.

3. a kind of spring buffer pad according to claim 1 or 2, it is characterized in that, the height of the interior limiting side wall is higher than Outer limiting side wall.

4. a kind of spring buffer pad according to claim 1 or 2, it is characterized in that, the upper end of the outer limiting side wall is to circle What heart direction was stretched out is equipped with limit protrusion（4）.