CN211008684U - Shock-absorbing structure for telescopic hydraulic support - Google Patents
Shock-absorbing structure for telescopic hydraulic support Download PDFInfo
- Publication number
- CN211008684U CN211008684U CN201921580262.4U CN201921580262U CN211008684U CN 211008684 U CN211008684 U CN 211008684U CN 201921580262 U CN201921580262 U CN 201921580262U CN 211008684 U CN211008684 U CN 211008684U
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- Prior art keywords
- piston
- movable rod
- base
- shock
- fixed
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- 239000012530 fluid Substances 0.000 claims abstract description 10
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 7
- 239000003208 petroleum Substances 0.000 claims description 2
- 238000013016 damping Methods 0.000 abstract description 14
- 230000007547 defect Effects 0.000 abstract description 2
- 230000035939 shock Effects 0.000 description 11
- 238000010521 absorption reaction Methods 0.000 description 7
- 239000003245 coal Substances 0.000 description 4
- 230000003139 buffering effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses a scalability is shock-absorbing structure for hydraulic support especially relates to shock-absorbing structure technical field, including lower base, hydraulic pressure post and last base. When the hydraulic column drives the lower base and the upper base to be close to each other, the pressure rod can be driven to be pressed into the bottom cylinder at the same time, so that hydraulic oil above the middle piston is extruded by the upper piston, the buffer block above the lower piston is extruded by the middle piston, and non-Newtonian fluid below the lower piston is extruded by the lower piston, and the damping mode is not single any more; when the lower base and the upper base are close to each other, the upper movable rod and the lower movable rod can move through the middle rotating shaft to enable an included angle between the upper movable rod and the lower movable rod to be continuously reduced, so that the upper hook in the upper movable rod and the lower hook in the lower movable rod pull the spring to be elongated, the spring plays a damping role again, the damping performance is improved, and the defects that the damping performance of the conventional damping structure is poor, the damping mode is too single and the like are overcome.
Description
Technical Field
The utility model relates to a shock-absorbing structure technical field especially relates to a scalability shock-absorbing structure for hydraulic support.
Background
The hydraulic support is a structure used for controlling the mine pressure of a coal face, the mine pressure of the coal face acts on the hydraulic support in an external load mode, and in a mechanical system in which the hydraulic support and surrounding rock of the coal face interact, if the resultant force of all supporting pieces of the hydraulic support and the resultant force of the external load of a top plate acting on the hydraulic support are exactly in the same straight line, the hydraulic support is very suitable for the surrounding rock of the coal face. However, the existing telescopic hydraulic support has poor shock absorption performance of a shock absorption structure and too single shock absorption mode, so that the required shock absorption effect is difficult to achieve.
SUMMERY OF THE UTILITY MODEL
In order to overcome the too poor and too single defect such as shock attenuation mode of present shock-absorbing structure's shock attenuation nature, the utility model provides a shock-absorbing structure for scalability hydraulic support has not only improved shock attenuation nature, and the shock attenuation mode is no longer single moreover.
The utility model provides a technical scheme that its technical problem adopted is: a shock absorption structure for a telescopic hydraulic support comprises a lower base, a hydraulic column and an upper base, wherein the hydraulic column is fixed in the middle of the upper end of the lower base, the upper base is movably connected to the upper end of the hydraulic column, lower fixing blocks are fixed on the left side and the right side of the upper end of the lower base, upper fixing blocks are fixed on the left side and the right side of the lower end of the upper base, a lower fixing plate is fixed on one end, close to the hydraulic column, of each lower fixing block, an upper fixing plate is fixed on one end, close to the hydraulic column, of each upper fixing plate, a bottom cylinder is fixed on the upper end of each lower fixing plate, a pressure rod is fixed on the lower end of each upper fixing plate, the tail end of the pressure rod extends into the bottom cylinder and is connected with the bottom cylinder in a sliding manner, an upper piston is connected with the bottom, the inner part of the bottom cylinder is slidably connected with a middle piston, the middle piston is positioned below the upper piston, the inner part of the bottom cylinder is slidably connected with a lower piston, the lower piston is positioned below the middle piston, the inner part of the bottom cylinder is slidably connected with a buffer block, and the buffer block is positioned between the lower piston and the middle piston; the front end of each lower fixed block is rotatably connected with a lower rotating shaft, the front end of each upper fixed block is rotatably connected with an upper rotating shaft, the tail end of each lower rotating shaft penetrates through and is fixedly provided with a lower movable rod, the tail end of each upper rotating shaft penetrates through and is fixedly provided with an upper movable rod, the tail end of each upper movable rod is provided with a groove, the inner part of each groove is rotatably connected with a middle rotating shaft, the tail end of each lower movable rod extends into the groove and is fixedly penetrated with the middle rotating shaft, one end of each lower movable rod, far away from the hydraulic column, is fixedly provided with a lower hook, one end of each upper movable rod, far away from the hydraulic column, is fixedly provided with an upper hook, a spring is connected between the upper hook and the lower hook on the same vertical plane, and the upper end and the lower end of the spring are symmetrically, the connecting hooks are respectively fastened with the upper hook and the lower hook.
Preferably, the left side and the right side of the upper end of the lower base and the left side and the right side of the lower end of the upper base are both provided with sliding grooves, the sliding grooves in the lower base are positioned in front of the lower fixed block, the sliding grooves in the upper base are positioned in front of the upper fixed block, each lower movable rod end and each upper movable rod end are both fixed with a connecting rod, the front end of each connecting rod is rotatably connected with a shaft rod, the outer part of each shaft rod is fixed with a rubber wheel, and the rubber wheels are in rolling connection with the sliding grooves.
Preferably, hydraulic oil is arranged between the middle piston and the upper piston, and non-Newtonian fluid is arranged between the lower piston and the bottom end of the inner portion of the bottom cylinder.
Preferably, the non-newtonian fluid between the lower piston and the bottom end of the interior of the bottom cylinder is oil.
Preferably, the buffer block is a rubber block, and the buffer block is respectively contacted with the lower piston and the middle piston.
Preferably, an included angle between the upper movable rod and the lower movable rod is reduced as the lower base and the upper base approach each other.
Compared with the prior art, the utility model discloses the beneficial effect who realizes: according to the damping structure for the telescopic hydraulic support, when the lower base and the upper base are driven by the hydraulic column to be close to each other, the pressure rod can be driven to be pressed into the bottom cylinder at the same time, so that hydraulic oil above the middle piston is extruded by the upper piston, the buffer block above the lower piston is extruded by the middle piston, and non-Newtonian fluid below the lower piston is extruded by the lower piston, and the damping mode is not single; when the lower base and the upper base are close to each other, the upper movable rod and the lower movable rod can move through the middle rotating shaft, so that the included angle between the upper movable rod and the lower movable rod is continuously reduced, the upper hook in the upper movable rod and the lower hook in the lower movable rod pull the spring to be elongated, the spring plays a damping role again, and the damping performance is improved.
Drawings
The invention is described in further detail below with reference to the following figures and detailed description:
FIG. 1 is a general schematic view of the present invention;
FIG. 2 is an enlarged view of a portion A of the lower base of FIG. 1;
fig. 3 is a schematic view of the upper movable rod of the present invention.
In the figure: 1-lower base, 2-hydraulic column, 3-upper base, 4-chute, 5-lower fixed block, 6-lower fixed plate, 7-lower rotating shaft, 8-lower movable rod, 9-middle rotating shaft, 10-upper fixed block, 11-upper fixed plate, 12-upper rotating shaft, 13-upper movable rod, 14-groove, 15-upper hook, 16-spring, 17-connecting hook, 18-lower hook, 19-pressure rod, 20-bottom cylinder, 21-upper piston, 22-middle piston, 23-buffer block, 24-lower piston, 25-connecting rod, 26-shaft rod and 27-rubber wheel.
Detailed Description
The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.
As shown in FIG. 1, a shock-absorbing structure for a telescopic hydraulic support comprises a lower base 1, a hydraulic column 2 and an upper base 3, wherein the hydraulic column 2 is fixed in the middle of the upper end of the lower base 1, the upper base 3 is movably connected to the upper end of the hydraulic column 2, lower fixing blocks 5 are fixed on the left and right sides of the upper end of the lower base 1, upper fixing blocks 10 are fixed on the left and right sides of the lower end of the upper base 3, a lower fixing plate 6 is fixed on one end of each lower fixing block 5 close to the hydraulic column 2, an upper fixing plate 11 is fixed on one end of each upper fixing block 10 close to the hydraulic column 2, a bottom cylinder 20 is fixed on the upper end of each lower fixing plate 6, a pressure rod 19 is fixed on the lower end of each upper fixing plate 11, and the tail end of the pressure rod 19 extends into the bottom cylinder 20 to be slidably connected with the bottom cylinder 20, the tail end of the compression rod 19 is connected with an upper piston 21, the upper piston 21 is connected with the bottom cylinder 20 in a sliding manner, the bottom cylinder 20 is connected with a middle piston 22 in a sliding manner, the middle piston 22 is positioned below the upper piston 21, the bottom cylinder 20 is connected with a lower piston 24 in a sliding manner, the lower piston 24 is positioned below the middle piston 22, the bottom cylinder 20 is connected with a buffer block 23 in a sliding manner, the buffer block 23 is positioned between the lower piston 24 and the middle piston 22, hydraulic oil is arranged between the middle piston 22 and the upper piston 21, non-Newtonian fluid is arranged between the lower piston 24 and the bottom cylinder 20, the non-Newtonian fluid between the lower piston 24 and the bottom cylinder 20 is petroleum, the buffer block 23 is a rubber block, and the buffer block 23 is respectively contacted with the lower piston 24 and the middle piston 22, when the hydraulic column 2 drives the lower base 1 and the upper base 3 to be close to each other, the compression rod 19 below the upper fixing plate 11 can be driven to be pressed into the bottom cylinder 20 on the lower fixing plate 6 at the same time, preliminary buffering and damping can be achieved by extruding hydraulic oil on the middle piston 22 through the upper piston 21, meanwhile, the middle piston 22 is driven to downwards extrude the buffer block 23 to achieve buffering and damping of the second step, finally the buffer block 23 pushes the lower piston 24 to downwards move to extrude non-Newton fluid to achieve buffering and damping of the last step, so that the hydraulic oil above the middle piston 22 is extruded along with the upper piston 21, the buffer block 23 above the lower piston 24 is extruded by the middle piston 22, and the non-Newton fluid below the lower piston 24 is extruded by the lower piston 24, and the damping mode.
As shown in fig. 1 to 3, according to the embodiment, the embodiment is different from the above embodiment in that the front end of each lower fixed block 5 is rotatably connected with a lower rotating shaft 7, the front end of each upper fixed block 10 is rotatably connected with an upper rotating shaft 12, the tail end of each lower rotating shaft 7 is fixedly penetrated through a lower movable rod 8, the tail end of each upper rotating shaft 12 is fixedly penetrated through an upper movable rod 13, the tail end of each upper movable rod 13 is provided with a groove 14, the inside of each groove 14 is rotatably connected with a middle rotating shaft 9, the tail end of each lower movable rod 8 extends into the groove 14 and is fixedly penetrated through the middle rotating shaft 9, one end of each lower movable rod 8 far away from the hydraulic column 2 is fixedly provided with a lower hook 18, one end of each upper movable rod 13 far away from the hydraulic column 2 is fixedly provided with an upper hook 15, same perpendicular upper portion couple 15 with it has spring 16 to have connect mutually between lower part couple 18, spring 16 upper and lower both ends symmetry has connect two couple 17 mutually, couple 17 respectively with upper portion couple 15 with lower part couple 18 lock joint, upper portion movable rod 13 with contained angle between lower part movable rod 8 is along with base 1 with last base 3 is close to each other and reduces down, when being close to each other between base 1 and the last base 3 down, can make upper portion movable rod 13 in the upper portion fixed block 10 rotate through upper portion pivot 12, and lower part movable rod 8 on the lower part fixed block 5 then moves about through lower part pivot 7, and along with upper portion movable rod 13 and lower part movable rod 8 through the activity of middle part pivot 9 in recess 14, and make the contained angle between upper portion movable rod 13 and the lower part movable rod 8 constantly reduce for upper portion couple 15 in the upper portion movable rod 13 and lower part movable rod 8 in lower part movable rod 18 through with connect the couple 18 in the upper portion movable rod 13 and the lower part movable rod 8 17 are fastened to pull the spring 16 to be elongated, thereby achieving a shock absorption effect again by the spring 16, so that the shock absorption performance is improved.
As shown in fig. 3, preferably, sliding grooves 4 are formed in the left and right sides of the upper end of the lower base 1 and the left and right sides of the lower end of the upper base 3, the sliding grooves 4 in the lower base 1 are located in front of the lower fixed block 5, the sliding grooves 4 in the upper base 3 are located in front of the upper fixed block 10, connecting rods 25 are fixed to the head ends of the lower movable rods 8 and the head ends of the upper movable rods 13, a shaft rod 26 is rotatably connected to the front end of each connecting rod 25, a rubber wheel 27 is fixed to the outside of each shaft rod 26, the rubber wheel 27 is in rolling connection with the sliding grooves 4, when an included angle between the lower movable rods 8 and the upper movable rods 13 is reduced, the head ends of the lower movable rods 8 and the upper movable rods 13 are close to the hydraulic cylinder 2, so that the rubber wheel 27 in front of the connecting rods 25 rolls in the sliding grooves 4 through the shaft rod 26, thereby increasing the mobility of the lower movable bar 8 and the upper movable bar 13.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a shock-absorbing structure for scalability hydraulic support, includes lower base, hydraulic pressure post and last base, its characterized in that:
the hydraulic column is fixed in the middle of the upper end of the lower base, the upper base is movably connected with the upper end of the hydraulic column, the left side and the right side of the upper end of the lower base are both fixed with lower fixing blocks, the left side and the right side of the lower end of the upper base are both fixed with upper fixing blocks, one end of each lower fixing block close to the hydraulic column is both fixed with a lower fixing plate, one end of each upper fixing block close to the hydraulic column is both fixed with an upper fixing plate, the upper end of each lower fixing plate is both fixed with a bottom cylinder, the lower end of each upper fixing plate is fixed with a pressure rod, the tail end of the pressure rod extends into the bottom cylinder and is in sliding connection with the bottom cylinder, the tail end of the pressure rod is connected with an upper piston, the upper piston is in sliding connection with the bottom cylinder, the inner part of the bottom, a lower piston is connected to the inside of the bottom cylinder in a sliding manner, the lower piston is positioned below the middle piston, a buffer block is connected to the inside of the bottom cylinder in a sliding manner, and the buffer block is positioned between the lower piston and the middle piston; the front end of each lower fixed block is rotatably connected with a lower rotating shaft, the front end of each upper fixed block is rotatably connected with an upper rotating shaft, the tail end of each lower rotating shaft penetrates through and is fixedly provided with a lower movable rod, the tail end of each upper rotating shaft penetrates through and is fixedly provided with an upper movable rod, the tail end of each upper movable rod is provided with a groove, the inner part of each groove is rotatably connected with a middle rotating shaft, the tail end of each lower movable rod extends into the groove and is fixedly penetrated with the middle rotating shaft, one end of each lower movable rod, far away from the hydraulic column, is fixedly provided with a lower hook, one end of each upper movable rod, far away from the hydraulic column, is fixedly provided with an upper hook, a spring is connected between the upper hook and the lower hook on the same vertical plane, and the upper end and the lower end of the spring are symmetrically, the connecting hooks are respectively fastened with the upper hook and the lower hook.
2. The shock-absorbing structure for a telescopic hydraulic mount according to claim 1, wherein: the upper base is provided with a lower fixed block, the lower fixed block is provided with a lower movable rod head end, the upper movable rod head end is fixedly provided with a lower movable rod head end, the lower movable rod head end is rotatably connected with a lower movable rod head.
3. The shock-absorbing structure for a telescopic hydraulic mount according to claim 1, wherein: and hydraulic oil is arranged between the middle piston and the upper piston, and non-Newtonian fluid is arranged between the lower piston and the bottom end in the bottom cylinder.
4. A shock-absorbing structure for a telescopic hydraulic mount according to claim 3, wherein: the non-Newtonian fluid between the lower piston and the bottom end of the interior of the bottom cylinder is petroleum.
5. The shock-absorbing structure for a telescopic hydraulic mount according to claim 1, wherein: the buffer block is a rubber block and is respectively contacted with the lower piston and the middle piston.
6. The shock-absorbing structure for a telescopic hydraulic mount according to claim 1, wherein: the included angle between the upper movable rod and the lower movable rod is reduced along with the mutual approaching of the lower base and the upper base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921580262.4U CN211008684U (en) | 2019-09-20 | 2019-09-20 | Shock-absorbing structure for telescopic hydraulic support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921580262.4U CN211008684U (en) | 2019-09-20 | 2019-09-20 | Shock-absorbing structure for telescopic hydraulic support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211008684U true CN211008684U (en) | 2020-07-14 |
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ID=71495553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921580262.4U Expired - Fee Related CN211008684U (en) | 2019-09-20 | 2019-09-20 | Shock-absorbing structure for telescopic hydraulic support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211008684U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145613A (en) * | 2020-10-20 | 2020-12-29 | 南京工业职业技术大学 | non-Newtonian fluid triangular shock absorber |
-
2019
- 2019-09-20 CN CN201921580262.4U patent/CN211008684U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145613A (en) * | 2020-10-20 | 2020-12-29 | 南京工业职业技术大学 | non-Newtonian fluid triangular shock absorber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200714 |