CN210510104U - Oil pressure vibration damper - Google Patents
Oil pressure vibration damper Download PDFInfo
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- CN210510104U CN210510104U CN201921294369.2U CN201921294369U CN210510104U CN 210510104 U CN210510104 U CN 210510104U CN 201921294369 U CN201921294369 U CN 201921294369U CN 210510104 U CN210510104 U CN 210510104U
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Abstract
The utility model discloses an oil pressure vibration damper, which comprises a first oil storage cylinder, wherein the middle part in the first oil storage cylinder is provided with a second oil storage cylinder, the middle part in the second oil storage cylinder is provided with a piston rod, the upper part of the first oil storage cylinder is fixed with a sealing block, the middle part of the sealing block is provided with a first through hole, the upper part of the piston rod passes through the first through hole, and the piston rod slides up and down along the first through hole; a spring seat is fixed on the inner side surface of the upper part of the second oil storage cylinder below the sealing block, a second through hole is formed in the middle of the spring seat, the upper part of the piston rod penetrates through the second through hole, the piston rod slides up and down along the second through hole, a plurality of through oil holes are formed in the spring seat, a sealing sleeve is fixed at the bottom of the piston rod, a damping spring is sleeved on the piston rod between the bottom surface of the spring seat and the top surface of the sealing sleeve in a sliding mode, the upper end of the damping spring is fixed at the corresponding position of the; the middle part of the bottom end of the first oil storage cylinder is fixed with a hanging ring. The utility model discloses can strengthen the damping effect and can guarantee life.
Description
Technical Field
The utility model belongs to the technical field of the shock absorber, concretely relates to oil hydraulic shock absorber.
Background
In the existing shock absorber, in order to enhance the shock absorption performance of the shock absorber, a shock absorption spring is sleeved outside a shock absorber oil cylinder, so that the shock absorption spring is directly exposed in the external environment, and then the shock absorption spring can be corroded more quickly, so that the aging rate of the shock absorption spring is high, and the service life of the shock absorber can be shortened. In the existing shock absorber, oil in the inner oil storage cylinder generally directly reaches the outer oil storage cylinder through an oil channel, so that the resistance applied to the oil flowing between the inner oil storage cylinder and the outer oil storage cylinder is small, and the shock absorption effect of the shock absorber is not good.
SUMMERY OF THE UTILITY MODEL
The utility model provides an oil pressure shock absorber can strengthen this oil pressure shock absorber's damping effect and can guarantee this oil pressure shock absorber's life.
In order to solve the technical problem, the utility model discloses a following technical scheme:
an oil pressure shock absorber comprises a first oil storage cylinder which is vertical and has openings at the upper end and the lower end, a second oil storage cylinder which is vertical and has openings at the upper end and the lower end is arranged in the middle of the first oil storage cylinder, a vertical piston rod is arranged in the middle of the second oil storage cylinder, a sealing block for sealing the upper parts of the first oil storage cylinder and the second oil storage cylinder is fixed at the upper part of the first oil storage cylinder, a vertical first through hole is arranged in the middle of the sealing block, the upper part of the piston rod penetrates through the first through hole, the contact part of the side wall of the first through hole and the outer side surface of the piston rod is sealed; an annular spring seat is fixed on the inner side surface of the upper part of the second oil storage cylinder below the sealing block, a vertical second through hole is arranged in the middle of the spring seat, the upper part of the piston rod penetrates through the second through hole, the contact part of the side wall of the second through hole and the outer side surface of the piston rod is sealed, the piston rod slides up and down along the second through hole, a plurality of through oil holes penetrating through the top surface and the bottom surface of the spring seat are arranged on the spring seat, a sealing sleeve, the outer side surface of the sealing sleeve is in sealed sliding connection with the inner side surface of the corresponding position of the second oil storage cylinder, the inner side surface of the sealing sleeve is in sealed fixed connection with the outer side surface of the bottom of the piston rod, a damping spring is slidably sleeved on the piston rod between the bottom surface of the spring seat and the top surface of the sealing sleeve, the upper end of the damping spring is fixed at the corresponding position of the bottom surface of the spring seat, the lower end of the damping spring is fixed on the outer side surface of the piston rod at the upper end of the sealing sleeve, and; the middle part of the bottom end of the first oil storage cylinder is fixed with a hanging ring.
Furthermore, the top end of the first oil storage cylinder is higher than the top end of the second oil storage cylinder, a sealing block is inserted into the upper portion in the first oil storage cylinder, the lower portion of the sealing block is inserted into the upper portion in the second oil storage cylinder, the upper portion of the sealing block is inserted into a gap between the inner side face of the first oil storage cylinder and the outer side face of the second oil storage cylinder, the sealing block is fixedly connected with the contact portion of the first oil storage cylinder in a sealing mode, the sealing block is fixedly connected with the contact portion of the second oil storage cylinder in a sealing mode, and the top end of the sealing block and the top end of the first oil storage cylinder are located at.
Furthermore, a dustproof sleeve is fixedly sleeved on the outer upper portion of the first oil storage cylinder, a vertical third through hole is formed in the middle of the dustproof sleeve, the upper portion of the piston rod penetrates through the third through hole, the contact portion of the side wall of the third through hole and the outer side face of the piston rod is sealed, the piston rod slides up and down along the third through hole, the top face of the interior of the dustproof sleeve is fixedly connected with the top face of the sealing block in a sealing mode, the top face of the interior of the dustproof sleeve is fixedly connected with the top end of the first oil storage cylinder in a sealing mode, and.
Furthermore, a first oil content channel is reserved between the outer side face of the lower portion of the sealing block and the inner side face of the upper portion of the second oil storage cylinder, a second oil content channel is reserved between a connecting face formed by connecting the top end of the outer side face of the lower portion of the sealing block and the top end of the inner side face of the upper portion of the sealing block and the top face of the second oil storage cylinder, a third oil content channel is reserved between the inner side face of the upper portion of the sealing block and the outer side face of the upper portion of the second oil storage cylinder, the first oil content channel, the second oil content channel and the third oil content channel are communicated with each other, and the first oil content channel, the second oil content channel.
Furthermore, the outer side surface of the spring seat is fixedly connected with the inner side surface of the corresponding position of the second oil storage cylinder in a sealing manner.
Further, the through oil holes are vertical through holes, the diameters of the through oil holes are equal, and the through oil holes are uniformly distributed on the spring seat.
Compared with the prior art, the beneficial effects of the utility model are that:
in the utility model, a circular ring-shaped spring seat is fixed on the inner side surface of the upper part of the second oil storage cylinder below the sealing block, a vertical second through hole is arranged in the middle of the spring seat, the upper part of the piston rod passes through the second through hole, the contact part of the side wall of the second through hole and the outer side surface of the piston rod is sealed, and the piston rod slides up and down along the second through hole, a sealing sleeve is fixedly sleeved at the bottom of the piston rod, the outer side surface of the sealing sleeve is connected with the inner side surface of the corresponding position of the second oil storage cylinder in a sealing and sliding way, the inner side surface of the sealing sleeve is fixedly connected with the outer side surface of the bottom of the piston rod in a sealing way, a damping spring is sleeved on the piston rod between the bottom surface of the spring, the damping spring is compressed in the upward sliding process of the piston rod, so that the upward sliding of the piston rod can be slowed down, the vertical distance between the sealing sleeve and the spring seat is increased when the piston rod slides downwards, and the damping spring is stretched in the downward sliding process of the piston rod, so that the downward sliding of the piston rod can be slowed down, and the damping effect of the oil pressure damper can be enhanced;
in the utility model, the spring seat is provided with a plurality of through oil holes which penetrate through the top surface and the bottom surface of the spring seat, so that when the piston rod slides upwards along the sealing block, the pressure in the cavity at the upper part of the second oil storage cylinder is increased, therefore, the oil in the upper cavity of the second oil storage cylinder flows through the plurality of through oil holes and enters the gap between the outer side surface of the second oil storage cylinder and the inner side surface of the first oil storage cylinder along the oil channel, the friction between each through oil hole and the oil, the friction between the oil channel and the oil and the friction between oil molecules form damping on vibration in the flowing process of the oil, and further the upward sliding of the piston rod is slowed down, because the oil in the cavity at the upper part of the second oil storage cylinder flows through the plurality of through oil holes in the process of entering the gap between the outer side surface of the second oil storage cylinder and the inner side surface of the first oil storage cylinder, therefore, the friction force on oil molecules is increased by the plurality of through oil holes, and the vibration reduction effect of the oil pressure vibration absorber is further enhanced;
the utility model discloses in, damping spring is on the piston rod between spring holder bottom surface and the seal cover top surface is located to the cover, and spring holder and seal cover all are in the second oil storage jar, just so can make damping spring and external isolated, and then can guarantee this oil damper's life.
Drawings
Fig. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic structural view of the spring seat of FIG. 1 connected to the piston rod and the second reservoir;
fig. 3 is an enlarged schematic structural view of the connection of the sealing block, the piston rod, the second oil storage cylinder and the first oil storage cylinder in fig. 1.
Description of the drawings: 1. the oil seal structure comprises a first oil storage cylinder, a second oil storage cylinder, a piston rod, a sealing block, a spring seat, a through oil hole, a sealing sleeve, a damping spring, a vibration damping spring, an oil channel, a hanging ring, a sealing block lower portion, a sealing block upper portion, a sealing block lower portion, a sealing block upper portion, a sealing block dustproof sleeve, a first oil content channel, a second oil content channel, a third oil content channel and a third oil content channel.
Detailed Description
As shown in fig. 1, 2 and 3, an oil pressure shock absorber comprises a first oil storage cylinder 1 which is vertical and has openings at the upper and lower ends, a second oil storage cylinder 2 which is vertical and has openings at the upper and lower ends is arranged at the middle part in the first oil storage cylinder 1, a vertical piston rod 3 is arranged at the middle part in the second oil storage cylinder 2, a sealing block 4 for sealing the upper parts in the first and second oil storage cylinders 2 is fixed at the upper part of the first oil storage cylinder 1, a vertical first through hole is arranged at the middle part of the sealing block 4, the upper part of the piston rod 3 passes through the first through hole, the contact part of the side wall of the first through hole and the outer side surface of the piston rod 3 is sealed, and the piston; an annular spring seat 5 is fixed on the inner side surface of the upper part of the second oil storage cylinder 2 below the seal block 4, a vertical second through hole is arranged in the middle of the spring seat 5, the upper part of the piston rod 3 penetrates through the second through hole, the contact part of the side wall of the second through hole and the outer side surface of the piston rod 3 is sealed, the piston rod 3 slides up and down along the second through hole, the outer side surface of the spring seat 5 is fixedly connected with the inner side surface of the corresponding position of the second oil storage cylinder 2 in a sealing way, a plurality of through oil holes 6 penetrating through the top and the bottom of the spring seat 5 are arranged on the spring seat 5, the through oil holes 6 are vertical through holes, the diameters of the through oil holes 6 are equal, the through oil holes 6 are uniformly distributed on the spring seat 5, a seal sleeve 7 is fixedly sleeved at the bottom of the piston rod 3, a damping spring 8 is slidably sleeved on the piston rod 3 between the bottom surface of the spring seat 5 and the top surface of the sealing sleeve 7, the upper end of the damping spring 8 is fixed at the corresponding position of the bottom surface of the spring seat 5, the lower end of the damping spring 8 is fixed on the outer side surface of the piston rod 3 at the upper end of the sealing sleeve 7, and an oil channel 9 is arranged between the second oil storage cylinder 2 above the spring seat 5 and the first oil storage cylinder 1; a hanging ring 10 is fixed in the middle of the bottom end of the first oil storage cylinder 1.
The top end of the first oil storage cylinder 1 is higher than the top end of the second oil storage cylinder 2, a sealing block 4 is inserted into the upper portion in the first oil storage cylinder 1, the lower portion 11 of the sealing block is inserted into the upper portion in the second oil storage cylinder 2, the upper portion 12 of the sealing block is inserted into a gap between the inner side face of the first oil storage cylinder 1 and the outer side face of the second oil storage cylinder 2, the contact portion of the sealing block 4 and the first oil storage cylinder 1 is fixedly connected in a sealing mode, the contact portion of the sealing block 4 and the second oil storage cylinder 2 is fixedly connected in a sealing mode, and the top end of the sealing block 4 and the top end of the first oil storage cylinder 1 are.
The outer upper portion of the first oil storage cylinder 1 is fixedly sleeved with a dustproof sleeve 13, a vertical third through hole is formed in the middle of the dustproof sleeve 13, the upper portion of the piston rod 3 penetrates through the third through hole, the contact position of the side wall of the third through hole and the outer side face of the piston rod 3 is sealed, the piston rod 3 slides up and down along the third through hole, the inner top face of the dustproof sleeve 13 is fixedly connected with the top face of the sealing block 4 in a sealing mode, the inner top face of the dustproof sleeve 13 is fixedly connected with the top end of the first oil storage cylinder 1 in a sealing mode, and the inner side face of the dustproof.
A first oil content channel 14 is reserved between the outer side face of the lower portion 11 of the sealing block and the inner side face of the upper portion of the second oil storage cylinder 2, a second oil content channel 15 is reserved between a connecting face formed by connecting the top end of the outer side face of the lower portion 11 of the sealing block and the top end of the inner side face of the upper portion 12 of the sealing block and the top face of the second oil storage cylinder 2, a third oil content channel 16 is reserved between the inner side face of the upper portion 12 of the sealing block and the outer side face of the upper portion of the second oil storage cylinder 2, the first oil content channel 14, the second oil content channel 15 and the third oil content channel 16 are communicated with one another, and the first oil content channel 14, the second oil content channel 15 and.
The working principle is as follows: when the piston rod 3 slides upwards along the seal block 4, the pressure in the upper cavity of the second oil storage cylinder 2 is increased, so that oil in the upper cavity of the second oil storage cylinder 2 flows through the plurality of through oil holes 6 and enters a gap between the outer side surface of the second oil storage cylinder 2 and the inner side surface of the first oil storage cylinder 1 along the oil channel 9, the friction between each through oil hole 6 and the oil, the friction between the oil channel 9 and the oil and the friction between oil molecules form damping to vibration in the flowing process, the upward sliding of the piston rod 3 is further slowed down, the vertical distance between the seal sleeve 7 and the spring seat 5 is reduced when the piston rod 3 slides upwards, the damping spring 8 is compressed when the piston rod 3 slides upwards, the upward sliding of the piston rod 3 can be slowed down, and similarly, when the piston rod 3 slides downwards along the seal block 4, the pressure in the upper cavity of the second oil storage cylinder 2 is reduced, therefore, oil in a gap between the outer side surface of the second oil storage cylinder 2 and the inner side surface of the first oil storage cylinder 1 flows through the oil channel 9 and enters the cavity at the upper part of the second oil storage cylinder 2 between the sealing sleeve 7 and the spring seat 5 along the plurality of through oil holes 6, the friction between the oil channel 9 and the oil, the friction between each through oil hole 6 and the oil and the friction between oil molecules form damping to vibration in the flowing process, the vertical distance between the sealing sleeve 7 and the spring seat 5 is increased when the piston rod 3 slides downwards, and the damping spring 8 is stretched when the piston rod 3 slides downwards, so that the downward sliding of the piston rod 3 can be slowed down.
Claims (6)
1. An oil damper, characterized in that: the sealing device comprises a first oil storage cylinder which is vertical and has openings at the upper end and the lower end, a second oil storage cylinder which is vertical and has openings at the upper end and the lower end is arranged in the middle of the first oil storage cylinder, a vertical piston rod is arranged in the middle of the second oil storage cylinder, a sealing block which is used for sealing the upper parts of the first oil storage cylinder and the second oil storage cylinder is fixed at the upper part of the first oil storage cylinder, a vertical first through hole is arranged in the middle of the sealing block, the upper part of the piston rod penetrates through the first through hole, the contact part of the side wall of the first through hole and the outer side surface of; an annular spring seat is fixed on the inner side surface of the upper part of the second oil storage cylinder below the sealing block, a vertical second through hole is arranged in the middle of the spring seat, the upper part of the piston rod penetrates through the second through hole, the contact part of the side wall of the second through hole and the outer side surface of the piston rod is sealed, the piston rod slides up and down along the second through hole, a plurality of through oil holes penetrating through the top surface and the bottom surface of the spring seat are arranged on the spring seat, a sealing sleeve, the outer side surface of the sealing sleeve is in sealed sliding connection with the inner side surface of the corresponding position of the second oil storage cylinder, the inner side surface of the sealing sleeve is in sealed fixed connection with the outer side surface of the bottom of the piston rod, a damping spring is slidably sleeved on the piston rod between the bottom surface of the spring seat and the top surface of the sealing sleeve, the upper end of the damping spring is fixed at the corresponding position of the bottom surface of the spring seat, the lower end of the damping spring is fixed on the outer side surface of the piston rod at the upper end of the sealing sleeve, and; the middle part of the bottom end of the first oil storage cylinder is fixed with a hanging ring.
2. An oil damper according to claim 1, characterized in that: the top end of the first oil storage cylinder is higher than the top end of the second oil storage cylinder, a sealing block is inserted into the upper portion in the first oil storage cylinder, the lower portion of the sealing block is inserted into the upper portion in the second oil storage cylinder, the upper portion of the sealing block is inserted into a gap between the inner side face of the first oil storage cylinder and the outer side face of the second oil storage cylinder, the sealing block is fixedly connected with the contact portion of the first oil storage cylinder in a sealing mode, the sealing block is fixedly connected with the contact portion of the second oil storage cylinder in a sealing mode, and the top end of the sealing block and the top end of the first oil storage cylinder are.
3. An oil damper according to claim 2, characterized in that: the dustproof sleeve is fixedly sleeved on the outer upper portion of the first oil storage cylinder, a vertical third through hole is formed in the middle of the dustproof sleeve, the upper portion of the piston rod penetrates through the third through hole, the contact portion of the side wall of the third through hole and the outer side face of the piston rod is sealed, the piston rod slides up and down along the third through hole, the top face in the dustproof sleeve is fixedly connected with the top face of the sealing block in a sealing mode, the top face in the dustproof sleeve is fixedly connected with the top end of the first oil storage cylinder in a sealing mode, and the inner side face.
4. An oil damper according to claim 2, characterized in that: a first oil content channel is reserved between the outer side face of the lower portion of the sealing block and the inner side face of the upper portion of the second oil storage cylinder, a second oil content channel is reserved between a connecting face formed by connecting the top end of the outer side face of the lower portion of the sealing block and the top end of the inner side face of the upper portion of the sealing block and the top face of the second oil storage cylinder, a third oil content channel is reserved between the inner side face of the upper portion of the sealing block and the outer side face of the upper portion of the second oil storage cylinder, the first oil content channel, the second oil content channel and the third oil content channel are communicated with each other, and the first oil content channel, the second oil content.
5. An oil damper according to claim 1, characterized in that: the outer side surface of the spring seat is fixedly connected with the inner side surface of the corresponding position of the second oil storage cylinder in a sealing way.
6. An oil damper according to claim 1, characterized in that: the through oil holes are vertical through holes, the diameters of the through oil holes are equal, and the through oil holes are uniformly distributed on the spring seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921294369.2U CN210510104U (en) | 2019-08-12 | 2019-08-12 | Oil pressure vibration damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921294369.2U CN210510104U (en) | 2019-08-12 | 2019-08-12 | Oil pressure vibration damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210510104U true CN210510104U (en) | 2020-05-12 |
Family
ID=70588651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921294369.2U Active CN210510104U (en) | 2019-08-12 | 2019-08-12 | Oil pressure vibration damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210510104U (en) |
-
2019
- 2019-08-12 CN CN201921294369.2U patent/CN210510104U/en active Active
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