CN110410450B - Hydraulic cylinder for buffer engineering machinery - Google Patents
Hydraulic cylinder for buffer engineering machinery Download PDFInfo
- Publication number
- CN110410450B CN110410450B CN201910811289.8A CN201910811289A CN110410450B CN 110410450 B CN110410450 B CN 110410450B CN 201910811289 A CN201910811289 A CN 201910811289A CN 110410450 B CN110410450 B CN 110410450B
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- China
- Prior art keywords
- hydraulic cylinder
- buffer
- fixedly connected
- cylinder
- decompression
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- 230000003139 buffering effect Effects 0.000 claims abstract description 7
- 230000006837 decompression Effects 0.000 claims description 44
- 238000007789 sealing Methods 0.000 claims description 15
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims description 3
- 235000017491 Bambusa tulda Nutrition 0.000 claims description 3
- 241001330002 Bambuseae Species 0.000 claims description 3
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims description 3
- 239000011425 bamboo Substances 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 3
- 230000037237 body shape Effects 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
- F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
- F16F15/023—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems using fluid means
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mechanical Engineering (AREA)
- Actuator (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The invention relates to the technical field of hydraulic cylinders and discloses a hydraulic cylinder for buffering engineering machinery, which comprises a hydraulic cylinder body and a buffering cylinder, wherein when a telescopic rod of the hydraulic cylinder body is stressed and pressed down, a contact plate and a pressure source are stretched out to be contacted with the pressure source to bear the pressure source, so that a supporting point between the contact plate and the pressure source is increased, a pressure reducing plate A and a pressure reducing plate B are stretched to two sides when being stressed, downward pressure is converted into forces dispersed to the left side and the right side, a large amount of pressure born by a connecting point between the hydraulic cylinder and a bearing object is digested, the occurrence of conditions such as breakage of the connecting point is avoided, and the like is avoided.
Description
Technical Field
The invention relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder for buffering engineering machinery.
Background
The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion).
When the conventional hydraulic cylinder for buffering engineering is used, a large amount of impact force is often born instantaneously, at this time, the connection point between the hydraulic cylinder and the bearing object can bear a large amount of pressure, and if the pressure cannot be digested timely, the connection point is broken, so that the hydraulic cylinder for buffering engineering machinery is needed to solve the problems.
Disclosure of Invention
(One) solving the technical problems
Aiming at the defects of the prior art, the invention provides the hydraulic cylinder for the buffer engineering machinery, which has the advantages of avoiding the breakage of connecting points and the like, and solves the problem that the connecting points between the existing hydraulic cylinder for the buffer engineering and a bearing object bear a large amount of pressure.
(II) technical scheme
In order to achieve the purpose of avoiding the fracture of the connecting point, the invention provides the following technical scheme: the utility model provides a pneumatic cylinder for buffer engineering machinery, including pneumatic cylinder body and buffer tube, the pneumatic cylinder body adopts the oil pressure pneumatic cylinder, the top surface fixedly connected with pressure gas cylinder of pneumatic cylinder body, pressure gas cylinder is the cylinder of fretwork, the round hole has all been seted up to the top surface and the bottom surface of pressure gas cylinder, the telescopic link of pneumatic cylinder body is located two round holes, the telescopic link is located the top outer wall fixedly connected with cover of pressing gas inside the pressure gas cylinder, the shape of pressing the gas cover is hemisphere, the top surface center department of cover of pressing gas has seted up the hole, the sealing ring has been seted up to the outer wall of pressing the gas cover, the diameter of sealing ring is unanimous with the inside diameter of pressure gas cylinder, the outer wall of sealing ring is laminated with the inner wall of pressure gas cylinder, the air inlet tank has been seted up to the bottom surface inner wall of pressure gas cylinder left and right sides, the inlet port has been seted up to the left and right sides of pressure gas cylinder, the inlet port is the cylinder, inlet port communicates with the air inlet tank.
The buffer cylinders are hollow cylindrical bodies, the two buffer cylinders are respectively and fixedly connected to the left side and the right side of the air compressing cylinder, the two buffer cylinders are communicated with the air inlet, a bearing hole is formed in the top surface of the buffer cylinder, a sliding bearing sleeve is fixedly installed in the bearing hole, a sliding rod is sleeved on an inner ring of the sliding bearing sleeve in the bearing hole, one end of the sliding rod, which is positioned in the buffer cylinder, is fixedly connected with a telescopic plate, the telescopic plate is cylindrical, the diameter of the telescopic plate is consistent with that of the buffer cylinder, the telescopic plate is positioned above the air inlet, two circular grooves are formed in the outer wall of the telescopic plate, a rubber ring is fixedly connected in the circular grooves, a reset spring is fixedly connected to the top surface of the telescopic plate, one end, which is not fixed, of the reset spring is fixedly connected with the inner wall of the top surface of the buffer cylinder, the sliding rod is located the outside one end fixedly connected with swivel becket of buffer tube, the decompression board A has been cup jointed in the swivel becket, decompression board A's shape is parallelogram, the front of decompression board A bottom is the ring body, decompression board A's bottom and swivel becket inner wall cup joint, two decompression board A's top all inclines to the direction of telescopic link, decompression board B has been cup jointed to decompression board A's bottom, decompression board B's shape is parallelogram, decompression board B's bottom is the cylindric, decompression board B's bottom cup joints with decompression board A's bottom, two decompression boards B all incline to the direction of keeping away from the telescopic link, decompression board A and decompression board B's top all fixedly connected with contact plate, the shape of contact plate is the cuboid, every two corresponding one sides of decompression board A and decompression board B that are close to each other respectively with a rebound spring's both ends fixed connection.
Preferably, the air pressing sleeve and the sealing ring are made of rubber materials.
Preferably, a rubber pad is filled in the gap between the round hole and the telescopic rod.
Preferably, the top surface of the contact plate is fixedly connected with a rubber layer.
Preferably, the cross section of the sealing ring is rectangular.
(III) beneficial effects
Compared with the prior art, the hydraulic cylinder for the buffer engineering machinery has the following beneficial effects:
1. This pneumatic cylinder for buffer engineering machinery, through the setting of a buffer section of thick bamboo, when the telescopic link atress of pneumatic cylinder body pushes down, contact plate stretches out with the contact of pressure source with the pressure source, bear the weight of the pressure source to increase with the supporting point between the pressure source, and decompression board A and decompression board B expand to both sides when the atress, will decurrent pressure conversion to the scattered power of left and right sides, thereby digest a large amount of pressures that the tie point between pneumatic cylinder and the loader bore, avoid the emergence of the circumstances such as tie point fracture.
2. This pneumatic cylinder for buffer engineering machinery, when the telescopic link atress shrink through the pneumatic cylinder of pneumatic cylinder body, the air in the pneumatic cylinder is compressed to the buffer section of thick bamboo through air inlet tank and the cylinder air current of air inlet tube to through the narrow pipe effect that air inlet tank and air inlet tube formed, increase the velocity of flow and the impact force of air current, increase the speed that the air current promoted the slide bar, make the contact plate in time contact with the pressure source, thereby digestion pressure that can be timely.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
fig. 2 is a schematic diagram of the front cross-sectional structure of the present invention.
In the figure: the hydraulic cylinder comprises a hydraulic cylinder body 1, a buffer cylinder 2, a pressure cylinder 3, a round hole 4, a pressure sleeve 5, a sealing ring 6, an air inlet groove 7, an air inlet hole 8, a bearing hole 9, a sliding rod 10, a telescopic plate 11, a circular ring groove 12, a rubber ring 13, a rotating ring 14, a return spring 15, a pressure reducing plate 16A, a pressure reducing plate 17B, a contact plate 18, a rubber layer 19, a rebound spring 20 and a telescopic rod 21.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-2, the invention provides a hydraulic cylinder for a buffer engineering machine, which comprises a hydraulic cylinder body 1 and a buffer cylinder 2, wherein the hydraulic cylinder body 1 adopts an oil hydraulic cylinder, the oil hydraulic cylinder is a prior art, the details are omitted herein, the top surface of the hydraulic cylinder body 1 is fixedly connected with a pneumatic cylinder 3, the pneumatic cylinder 3 is a hollow cylindrical body, round holes 4 are formed in the top surface and the bottom surface of the pneumatic cylinder 3, a telescopic rod 21 of the hydraulic cylinder body 1 is positioned in the two round holes 4, a rubber gasket is filled in a gap between the round holes 4 and the telescopic rod 21, the rubber gasket increases the tightness between the telescopic rod 21 and the round holes 4, a pneumatic sleeve 5 is fixedly connected to the outer wall of the top end of the telescopic rod 21 positioned in the pneumatic cylinder 3, the pneumatic sleeve 5 is hemispherical in shape, a hole is formed in the center of the top surface of the pneumatic sleeve 5, the outer wall of the pneumatic sleeve 5 is provided with a sealing ring 6, the cross section of the sealing ring 6 is rectangular body, the diameter of the sealing ring 6 is consistent with the diameter of the inner wall of the pneumatic cylinder 3, the inner walls of the pneumatic cylinder 3 are bonded with the sealing ring 5 and the sealing ring 6, the inner walls of the left and right sides of the pneumatic cylinder 3 are made of rubber, the left and right sides of the left side and right sides of the pneumatic cylinder 7 are provided with air inlet grooves 8, and the left side of the air inlet grooves 8 are connected with the air inlet grooves 8, 8 are formed with the air inlet grooves 8, and the left side is connected with the air inlet grooves 8.
The number of the buffer cylinders 2 is two, the buffer cylinders 2 are hollow cylindrical bodies, the two buffer cylinders 2 are respectively and fixedly connected to the left side and the right side of the air compressing cylinder 3, the two buffer cylinders 2 are communicated with the air inlet hole 8, the top surface of each buffer cylinder 2 is provided with a bearing hole 9, a sliding bearing sleeve is fixedly arranged in each bearing hole 9, the sliding bearing sleeve is a prior art, details are not needed, a sliding rod 10 is sleeved on the inner ring of the sliding bearing sleeve in each bearing hole 9, one end of each sliding rod 10, which is positioned in each buffer cylinder 2, is fixedly connected with a telescopic plate 11, the telescopic plates 11 are cylindrical bodies, the diameters of the telescopic plates 11 are consistent with the diameters of the inner parts of the buffer cylinders 2, the telescopic plates 11 are positioned above the air inlet hole 8, two circular ring grooves 12 are formed in the outer walls of the telescopic plates 11, rubber rings 13 are fixedly connected in the circular ring grooves 12, and reset springs 15 are fixedly connected to the top surfaces of the telescopic plates 11, the unfixed end of the return spring 15 is fixedly connected with the inner wall of the top surface of the buffer tube 2, one end of the sliding rod 10 positioned outside the buffer tube 2 is fixedly connected with the rotating ring 14, the rotating ring 14 is internally sleeved with the decompression plate A16, the decompression plate A16 is in a parallelogram shape, the front surface of the bottom end of the decompression plate A16 is in a ring shape, the bottom end of the decompression plate A16 is sleeved with the inner wall of the rotating ring 14, the top ends of the two decompression plates A16 incline towards the direction of the telescopic rod 21, the bottom end of the decompression plate A16 is sleeved with the decompression plate B17, the decompression plate B17 is in a parallelogram shape, the bottom end of the decompression plate B17 is in a cylinder shape, the bottom end of the decompression plate B17 is sleeved with the bottom end of the decompression plate A16, the two decompression plates B17 incline towards the direction away from the telescopic rod 21, the top ends of the decompression plate A16 and the decompression plate B17 are fixedly connected with the contact plate 18, the contact plate 18 is in a rectangular shape, the top surface of the contact plate 18 is fixedly connected with the rubber layer 19, when the telescopic rod 21 of the hydraulic cylinder body 1 is stressed and contracted, the air in the air compressing cylinder 3 is compressed into the buffer cylinder 2 through the air inlet groove 7 and the air inlet cylinder, the air pushes the telescopic plate 11 in the buffer cylinder 2, the sliding rod 10 rapidly stretches out towards the direction of a pressure source, the pressure source is borne by the contact plate 18 and is contacted with the pressure source, the pressure reducing plate A16 and the pressure reducing plate B17 are unfolded towards two sides when stressed, the telescopic performance of the hydraulic cylinder body 1 is not influenced, downward pressure is converted into forces dispersed towards the left side and the right side, the rubber layer 19 can reduce hard friction between the contact plate 18 and the pressure source, and after the pressure is dissipated, the return spring 15 and the rebound spring 20 rebound to enable the pressure reducing plate A16, the pressure reducing plate B17 and the telescopic plate 11 to return to the original position in the process of lifting the hydraulic cylinder.
When the hydraulic cylinder body 1 is pressed down, the telescopic rod 21 of the hydraulic cylinder body 1 is pressed down, the air jacket 5 compresses the air in the air compressing cylinder 3 into the buffer cylinder 2 through the air inlet groove 7 and the air inlet cylinder, the air pushes the telescopic plate 11 in the buffer cylinder 2, the sliding rod 10 stretches out, the contact plate 18 is contacted with a pressure source, and the pressure reducing plates A16 and B17 are pressed down to be unfolded to two sides.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides a hydraulic cylinder for buffering engineering machine tool, includes pneumatic cylinder body (1) and buffering section of thick bamboo (2), its characterized in that: the hydraulic cylinder is characterized in that an air compressing cylinder (3) is fixedly connected to the top surface of the hydraulic cylinder body (1), the air compressing cylinder (3) is a hollow cylindrical body, round holes (4) are formed in the top surface and the bottom surface of the air compressing cylinder (3), a telescopic rod (21) of the hydraulic cylinder body (1) is located in the two round holes (4), a rubber pad is filled in a gap between the round holes (4) and the telescopic rod (21), an air compressing sleeve (5) is fixedly connected to the outer wall of the top end of the telescopic rod (21) located inside the air compressing cylinder (3), a sealing ring (6) is arranged on the outer wall of the air compressing sleeve (5), air inlet grooves (7) are formed in the inner walls of the bottom surfaces of the left side and the right side of the air compressing cylinder (3), and air inlet holes (8) are formed in the left side and the right side of the air compressing cylinder (3), and the air inlet holes (8) are communicated with the air inlet grooves (7); the buffer barrels (2) are two, the buffer barrels (2) are hollow cylindrical bodies, the two buffer barrels (2) are fixedly connected to the left side and the right side of the air compressing barrel (3) respectively, the two buffer barrels (2) are communicated with the air inlet hole (8), a bearing hole (9) is formed in the top surface of the buffer barrels (2), a sliding bearing sleeve is fixedly installed in the bearing hole (9), a sliding rod (10) is sleeved on the inner ring of the sliding bearing sleeve in the bearing hole (9), one end of the sliding rod (10) located inside the buffer barrels (2) is fixedly connected with a telescopic plate (11), the telescopic plate (11) is in a cylindrical body shape, the diameter of the telescopic plate (11) is identical to the diameter of the inside of the buffer barrels (2), the telescopic plate (11) is located above the air inlet hole (8), two circular ring grooves (12) are formed in the outer wall of the telescopic plate (11), a rubber ring (13) is fixedly connected to the top surface of the telescopic plate (11), one end of the sliding spring (15) is fixedly connected with a sliding rod (10), one end of the sliding rod (16) is fixedly connected with the inner sleeve (16) of the inner sleeve (14), the inner sleeve (16) is connected with the inner sleeve (16), the bottom of decompression board A (16) cup joints with the inner wall of swivel becket (14), the top of two decompression boards A (16) all inclines to the direction of telescopic link (21), decompression board B (17) have been cup jointed to the bottom of decompression board A (16), the bottom of decompression board B (17) is the cylindric body, the bottom of decompression board B (17) cup joints with the bottom of decompression board A (16), the top of two decompression boards B (17) all inclines to the direction of keeping away from telescopic link (21), the top of decompression board A (16) and decompression board B (17) all fixedly connected with contact plate (18), the shape of contact plate (18) is the cuboid, the top surface fixedly connected with rubber layer (19) of contact plate (18), every two decompression boards A (16) that are close to each other and the corresponding one side of decompression board B (17) respectively with the both ends fixed connection of a rebound spring (20).
2. The hydraulic cylinder for a buffer construction machine according to claim 1, wherein: the shape of the air compressing sleeve (5) is hemispherical, and a hole is formed in the center of the top surface of the air compressing sleeve (5).
3. The hydraulic cylinder for a buffer construction machine according to claim 1, wherein: the cross section shape of the sealing ring (6) is a cuboid, the diameter of the sealing ring (6) is consistent with the diameter of the inside of the air compressing cylinder (3), and the outer wall of the sealing ring (6) is attached to the inner wall of the air compressing cylinder (3).
4. The hydraulic cylinder for a buffer construction machine according to claim 1, wherein: the air inlet groove (7) is trapezoid, and the air inlet hole (8) is cylindrical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910811289.8A CN110410450B (en) | 2019-08-30 | 2019-08-30 | Hydraulic cylinder for buffer engineering machinery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910811289.8A CN110410450B (en) | 2019-08-30 | 2019-08-30 | Hydraulic cylinder for buffer engineering machinery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110410450A CN110410450A (en) | 2019-11-05 |
| CN110410450B true CN110410450B (en) | 2024-04-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910811289.8A Active CN110410450B (en) | 2019-08-30 | 2019-08-30 | Hydraulic cylinder for buffer engineering machinery |
Country Status (1)
| Country | Link |
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| CN (1) | CN110410450B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1680679A1 (en) * | 1965-12-17 | 1970-03-12 | Fichtel & Sachs Ag | Hydropneumatic suspension |
| DE3737571A1 (en) * | 1987-11-05 | 1989-05-18 | Klaus Schumann | Shock absorber |
| US5158270A (en) * | 1991-12-31 | 1992-10-27 | Lin Norman R M | Enclosed hydraulic cylinder acting as a tension-buffer |
| DE554362T1 (en) * | 1990-10-30 | 1993-11-25 | Beloit Technologies Inc | QUICK PRESSURE RELEASING AIR SPRINGS. |
| JP2005048933A (en) * | 2003-07-31 | 2005-02-24 | Arutea:Kk | Vehicle height adjustment type shock absorbing device, and structure of upper mount, suspension, seal mechanism and shock absorber used in the same |
| KR200432808Y1 (en) * | 2006-09-29 | 2006-12-07 | 주식회사 삼홍사 | Gas Spring |
| JP2012107697A (en) * | 2010-11-17 | 2012-06-07 | Toyota Motor Corp | Cylinder device |
| WO2014089720A1 (en) * | 2012-12-10 | 2014-06-19 | 吕古元 | Anti-impact force apparatus |
| KR101482456B1 (en) * | 2013-12-06 | 2015-01-13 | 주식회사 니프코코리아 | Mixed-type air damper |
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| CN210531495U (en) * | 2019-08-30 | 2020-05-15 | 扬州市永发气动液压设备有限公司 | Hydraulic cylinder for buffering engineering machinery |
Family Cites Families (2)
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| US20080036126A1 (en) * | 2005-01-08 | 2008-02-14 | Jong-Jyr Kau | Failsafe buffer strut set |
| JP2007177991A (en) * | 2005-09-05 | 2007-07-12 | Tokai Rubber Ind Ltd | Vibration damping device |
-
2019
- 2019-08-30 CN CN201910811289.8A patent/CN110410450B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1680679A1 (en) * | 1965-12-17 | 1970-03-12 | Fichtel & Sachs Ag | Hydropneumatic suspension |
| DE3737571A1 (en) * | 1987-11-05 | 1989-05-18 | Klaus Schumann | Shock absorber |
| DE554362T1 (en) * | 1990-10-30 | 1993-11-25 | Beloit Technologies Inc | QUICK PRESSURE RELEASING AIR SPRINGS. |
| US5158270A (en) * | 1991-12-31 | 1992-10-27 | Lin Norman R M | Enclosed hydraulic cylinder acting as a tension-buffer |
| JP2005048933A (en) * | 2003-07-31 | 2005-02-24 | Arutea:Kk | Vehicle height adjustment type shock absorbing device, and structure of upper mount, suspension, seal mechanism and shock absorber used in the same |
| KR200432808Y1 (en) * | 2006-09-29 | 2006-12-07 | 주식회사 삼홍사 | Gas Spring |
| JP2012107697A (en) * | 2010-11-17 | 2012-06-07 | Toyota Motor Corp | Cylinder device |
| WO2014089720A1 (en) * | 2012-12-10 | 2014-06-19 | 吕古元 | Anti-impact force apparatus |
| KR101482456B1 (en) * | 2013-12-06 | 2015-01-13 | 주식회사 니프코코리아 | Mixed-type air damper |
| KR101797438B1 (en) * | 2017-06-05 | 2017-11-13 | 임종두 | Distributing board with earthquake-proof function |
| CN208203889U (en) * | 2018-05-24 | 2018-12-07 | 安徽瑞华棉业发展股份有限公司 | A kind of textile machines damping device |
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| 一种新型气液增力缸及其应用;仇宏程;液压与气动;20020620(06);29-30 * |
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| CN110410450A (en) | 2019-11-05 |
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