CN211623865U - Marine hydraulic cylinder with multistage buffer gear - Google Patents
Marine hydraulic cylinder with multistage buffer gear Download PDFInfo
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- CN211623865U CN211623865U CN202020096392.7U CN202020096392U CN211623865U CN 211623865 U CN211623865 U CN 211623865U CN 202020096392 U CN202020096392 U CN 202020096392U CN 211623865 U CN211623865 U CN 211623865U
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- piston
- cylinder
- buffering
- hydraulic cylinder
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- 239000000872 buffer Substances 0.000 title claims abstract description 47
- 230000003139 buffering effect Effects 0.000 claims abstract description 59
- 230000007246 mechanism Effects 0.000 claims abstract description 15
- 239000000463 material Substances 0.000 claims description 5
- 238000013016 damping Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 6
- 238000011084 recovery Methods 0.000 abstract description 6
- 239000003921 oil Substances 0.000 description 9
- 230000006835 compression Effects 0.000 description 5
- 238000007906 compression Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000001125 extrusion Methods 0.000 description 4
- 239000010720 hydraulic oil Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000006173 Good's buffer Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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Abstract
The utility model discloses a marine hydraulic cylinder with multistage buffer gear, including the cylinder, the left end of cylinder is provided with left cylinder cap, and the right-hand member of cylinder is provided with right cylinder cap, is provided with piston rod and piston in the cylinder, and the left end of piston rod seals the outside that slides and extend to left cylinder cap, the right-hand member fixedly connected with connecting rod of piston rod, the left side fixedly connected with buffer sleeve of piston. The marine hydraulic cylinder of the utility model greatly ensures the stability of the marine hydraulic cylinder in the working process through the arrangement of the multistage buffer mechanism, can effectively reduce the impact force to the cylinder cover of the hydraulic cylinder body when the piston falls back, and improves the service life of the hydraulic cylinder; meanwhile, the piston rod and the piston have good buffering effect, the piston is ensured to be slowly and stably recovered and dropped, and the problem that the piston rod is damaged in the hydraulic cylinder body due to overlarge impact force caused by overhigh speed during recovery can be solved.
Description
Technical Field
The utility model relates to a marine hydraulic cylinder technical field especially relates to a marine hydraulic cylinder with multistage buffer gear.
Background
In the marine industry, hydraulic rams on ships are important working devices on ships. The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion), and when the hydraulic actuating element is used for realizing reciprocating motion, a speed reducing device can be omitted, so that the hydraulic actuating element is widely applied to hydraulic systems of various machines. The hydraulic cylinder basically comprises a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device, wherein the buffering device and the exhaust device are determined according to specific application occasions, and other devices are indispensable.
At present, the hydraulic cylinder for the ship overcomes the problem that the piston collides with the cylinder cover through installing the cushion pad on the cylinder cover of the hydraulic cylinder, however, the installed cushion pad is usually a rubber pad, and due to the defects that the rubber pad is easy to age, the impact resistance is weak and the like, the problem that the piston can collide with the cylinder cover of the hydraulic cylinder when the piston falls back is not solved well all the time, the rubber pad needs to be replaced at intervals, the working efficiency is influenced, the operation is very troublesome, the buffering effect of the piston and the piston rod is not good, and the instability in working is. Therefore, the marine hydraulic oil cylinder with the multi-stage buffer mechanism is provided.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects existing in the prior art and providing a marine hydraulic oil cylinder with a multistage buffer mechanism.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a marine hydraulic cylinder with a multistage buffer mechanism comprises a cylinder barrel, wherein a left cylinder cover is arranged at the left end of the cylinder barrel, a right cylinder cover is arranged at the right end of the cylinder barrel, a piston rod and a piston are arranged in the cylinder barrel, the left end of the piston rod hermetically and slidably extends to the outside of the left cylinder cover, a connecting rod is fixedly connected to the right end of the piston rod, a buffer sleeve is fixedly connected to the left side of the piston, the right end of the connecting rod is slidably arranged in the buffer sleeve, a buffer ring is fixedly sleeved at the left end of the connecting rod and fixedly connected with the right end of the piston rod, a first spring sleeved on the connecting rod is fixedly connected between the buffer ring and the buffer sleeve, a second spring is arranged in the buffer sleeve, and two ends of the second spring are respectively fixedly connected with;
the right side fixedly connected with buffering plunger of piston, the rubber buffering chock plug of the right-hand member fixedly connected with rubber material of buffering plunger, be provided with the chock slot on the cylinder cap of the right side, and buffering plunger and the equal activity of rubber buffering chock plug extend to the chock slot in, one side that rubber buffering chock plug is close to buffering plunger is equipped with the recess, is equipped with the third spring in the recess, and the one end and the buffering plunger fixed connection of third spring, and one side inner wall fixed connection of notch is kept away from to the other end and the recess of third spring.
Preferably, the lateral wall of the buffer sleeve is symmetrically provided with sliding grooves, the two sides of the connecting rod in the buffer sleeve are provided with sliding blocks, and the sliding blocks are arranged in the sliding grooves in a sliding manner.
Preferably, a fourth spring is fixedly connected between the right side of the sliding block and the inner wall of the right side of the sliding groove.
Preferably, a piston oil seal is arranged on the circumference of the piston.
Preferably, the inner walls of the left cylinder cover and the right cylinder cover are respectively provided with a first oil port and a second oil port.
Preferably, the left cylinder cover and the right cylinder cover are both provided with a check valve and a buffering throttle valve.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, when the piston moves to the right and retrieves and falls back, can make buffering plunger and rubber buffering chock plug to the cock groove in the buffering activity, and rubber buffering chock plug itself is the rubber material, rubber buffering chock plug can carry out the deformation compression and play the effect of buffering like this, still make the extrusion deformation of third spring when rubber buffering chock plug compresses simultaneously, through the compression deformation of rubber buffering chock plug and the extrusion deformation of third spring like this, can play good buffering effect, can effectively reduce the impact force to hydraulic cylinder cap when the piston falls back to the right, hydraulic cylinder's life has been improved;
2. in the utility model, the piston can also receive the resistance of the plug groove of the right cylinder cover in the process of falling back to the right, so that the piston can also integrally and reversely buffer and move to the left, and the piston rod and the piston can also have good buffering effect through the deformation compression of the first spring, the second spring and the fourth spring, thereby ensuring the slow and stable recovery and falling back of the piston and preventing the damage problem in the hydraulic cylinder body caused by overlarge impact force due to the overhigh speed in the recovery of the piston rod;
to sum up, the marine hydraulic cylinder of the utility model greatly ensures the stability of the marine hydraulic cylinder in the working process through the arrangement of the multi-stage buffer mechanism, can effectively reduce the impact force to the cylinder cover of the hydraulic cylinder body when the piston falls back, and improves the service life of the hydraulic cylinder; meanwhile, the piston rod and the piston have good buffering effect, the piston is ensured to be slowly and stably recovered and dropped, and the problem that the piston rod is damaged in the hydraulic cylinder body due to overlarge impact force caused by overhigh speed during recovery can be solved.
Drawings
Fig. 1 is a schematic structural diagram of a marine hydraulic cylinder with a multi-stage buffer mechanism according to the present invention;
FIG. 2 is a schematic view of the connection structure between the piston rod and the piston according to the present invention;
fig. 3 is a schematic structural diagram of the present invention in detail.
In the figure: the hydraulic cylinder comprises a cylinder barrel 1, a left cylinder cover 2, a right cylinder cover 3, a piston rod 4, a piston 5, a connecting rod 6, a buffer sleeve 7, a buffer throttle valve 8, a buffer plunger 9, a rubber buffer plug 10, a plug groove 11, a second oil port 12, a first oil port 13, a piston oil seal 14, a buffer ring 15, a first spring 16, a second spring 17, a sliding block 18, a fourth spring 19, a sliding groove 20, a third spring 21 and a one-way valve 22.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, a marine hydraulic cylinder with a multi-stage buffer mechanism comprises a cylinder barrel 1, a left cylinder cover 2 is arranged at the left end of the cylinder barrel 1, a right cylinder cover 3 is arranged at the right end of the cylinder barrel 1, a piston rod 4 and a piston 5 are arranged in the cylinder barrel 1, the left end of the piston rod 4 hermetically and slidably extends to the outside of the left cylinder cover 2, the right end of the piston rod 4 is fixedly connected with a connecting rod 6, the left side of the piston 5 is fixedly connected with a buffer sleeve 7, the right end of the connecting rod 6 is slidably arranged in the buffer sleeve 7, the left end of the connecting rod 6 is fixedly sleeved with a buffer ring 15, and the buffer ring 15 is fixedly connected with the right end of the piston rod 4, a first spring 16 sleeved on the connecting rod 6 is fixedly connected between the buffer ring 15 and the buffer sleeve 7, a second spring 17 is arranged in the buffer sleeve 7, and two ends of the second spring 17 are respectively and fixedly connected with the right end of the connecting rod 6 and the left side of the piston 5;
the right side fixedly connected with buffering plunger 9 of piston 5, the rubber buffering chock plug 10 of the right-hand member fixedly connected with rubber material of buffering plunger 9, be provided with cock groove 11 on the right side cylinder cap 3, and buffering plunger 9 and rubber buffering chock plug 10 are all movable and are extended to in the cock groove 11, one side that rubber buffering chock plug 10 is close to buffering plunger 9 is equipped with the recess, is equipped with third spring 21 in the recess, and the one end and the buffering plunger 9 fixed connection of third spring 21, and one side inner wall fixed connection of notch is kept away from to the other end and the recess of third spring 21. The marine hydraulic cylinder of the utility model greatly ensures the stability of the marine hydraulic cylinder in the working process through the arrangement of the multistage buffer mechanism, can effectively reduce the impact force to the cylinder cover of the hydraulic cylinder body when the piston 5 falls back to the right, and improves the service life of the hydraulic cylinder; meanwhile, the piston rod 4 and the piston 5 have good buffering effect, the piston 5 is ensured to slowly and stably recover and fall back, and the problem that the piston rod 4 is damaged in a hydraulic cylinder body due to overlarge impact force caused by too high speed during recovery can be prevented.
Specifically, the side wall of the buffer sleeve 7 is symmetrically provided with sliding grooves 20, the two sides of the connecting rod 6 located in the buffer sleeve 7 are both provided with sliding blocks 18, and the sliding blocks 18 are slidably arranged in the sliding grooves 20.
Specifically, a fourth spring 19 is fixedly connected between the right side of the sliding block 18 and the right side inner wall of the sliding chute 20.
Specifically, a piston oil seal 14 is provided on the circumference of the piston 5.
Specifically, a first oil port 13 and a second oil port 12 are respectively arranged on the inner walls of the left cylinder head 2 and the right cylinder head 3.
Specifically, the left cylinder head 2 and the right cylinder head 3 are both provided with a check valve 22 and a buffer throttle valve 8.
The utility model discloses a marine hydraulic cylinder with multistage buffer gear, when piston 5 moves back to the right and withdraws and falls, can make buffering plunger 9 and rubber buffering chock plug 10 cushion the activity to the cock groove 11 in, and rubber buffering chock plug 10 is the rubber material by itself, rubber buffering chock plug 10 can carry out deformation compression and play the effect of buffering like this, still make third spring 21 extrusion deformation when rubber buffering chock plug 10 compresses simultaneously, like this through the compression deformation of rubber buffering chock plug 10 and the extrusion deformation of third spring 21, can play good buffering effect, can effectively reduce the impact force to hydraulic cylinder cap when piston 5 moves back to the right, hydraulic cylinder's life has been improved; meanwhile, the piston 5 can be resisted by the plug groove 11 of the right cylinder cover 3 in the process of falling back to the right, so that the piston 5 can also move in a buffering way to the left in a whole and extrude the second spring 17, simultaneously, when the piston 5 is in buffering movement to the left integrally, the buffering sleeve 7 is also enabled to press the first spring 16 to the left, meanwhile, when the buffer sleeve 7 moves leftwards, the fourth spring 19 is pressed by the right inner wall of the chute 20, thus, the first spring 16, the second spring 17 and the fourth spring 19 are compressed by the deformation, can ensure that the piston rod 4 and the piston 5 have good buffer effect, ensure the piston 5 to slowly and stably recover and fall back, prevent the problem that the piston rod 4 is damaged in a hydraulic cylinder body caused by overlarge impact force due to overlarge speed during recovery, and finally, through the arrangement of the multi-stage buffer mechanisms, the stability of the working process of the marine hydraulic oil cylinder is greatly ensured.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (6)
1. A marine hydraulic cylinder with a multistage buffer mechanism comprises a cylinder barrel (1), wherein a left cylinder cover (2) is arranged at the left end of the cylinder barrel (1), a right cylinder cover (3) is arranged at the right end of the cylinder barrel (1), a piston rod (4) and a piston (5) are arranged in the cylinder barrel (1), the left end of the piston rod (4) hermetically and slidably extends to the outside of the left cylinder cover (2), the marine hydraulic cylinder is characterized in that a connecting rod (6) is fixedly connected with the right end of the piston rod (4), a buffer sleeve (7) is fixedly connected with the left side of the piston (5), the right end of the connecting rod (6) is slidably arranged in the buffer sleeve (7), a buffer ring (15) is fixedly sleeved at the left end of the connecting rod (6), the buffer ring (15) is fixedly connected with the right end of the piston rod (4), a first spring (16) sleeved on the connecting rod (6) is fixedly connected between the buffer ring (, a second spring (17) is arranged in the buffer sleeve (7), and two ends of the second spring (17) are respectively and fixedly connected with the right end of the connecting rod (6) and the left side of the piston (5);
the right side fixedly connected with buffering plunger (9) of piston (5), the rubber buffering chock plug (10) of the right-hand member fixedly connected with rubber material of buffering plunger (9), be provided with on right side cylinder cap (3) chock groove (11), and buffering plunger (9) and rubber buffering chock plug (10) are all movable to extend to in chock groove (11), one side that rubber buffering chock plug (10) are close to buffering plunger (9) is equipped with the recess, is equipped with third spring (21) in the recess, and the one end and buffering plunger (9) fixed connection of third spring (21), and the one side inner wall fixed connection of notch is kept away from to the other end and the recess of third spring (21).
2. The marine hydraulic cylinder with the multistage buffering mechanism according to claim 1, wherein sliding grooves (20) are symmetrically formed in the side wall of the buffering sleeve (7), sliding blocks (18) are arranged on two sides of the connecting rod (6) located in the buffering sleeve (7), and the sliding blocks (18) are slidably arranged in the sliding grooves (20).
3. The marine hydraulic cylinder with the multistage buffering mechanism is characterized in that a fourth spring (19) is fixedly connected between the right side of the sliding block (18) and the right side inner wall of the sliding chute (20).
4. A marine hydraulic ram with a multistage damping mechanism according to claim 1, characterised in that the piston (5) is provided with a piston oil seal (14) on its circumference.
5. The marine hydraulic cylinder with the multistage buffering mechanism as claimed in claim 1, wherein the inner walls of the left cylinder cover (2) and the right cylinder cover (3) are respectively provided with a first oil port (13) and a second oil port (12).
6. The marine hydraulic cylinder with the multistage buffering mechanism as claimed in claim 1, characterized in that the left cylinder cover (2) and the right cylinder cover (3) are provided with a one-way valve (22) and a buffering throttle valve (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020096392.7U CN211623865U (en) | 2020-01-16 | 2020-01-16 | Marine hydraulic cylinder with multistage buffer gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020096392.7U CN211623865U (en) | 2020-01-16 | 2020-01-16 | Marine hydraulic cylinder with multistage buffer gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211623865U true CN211623865U (en) | 2020-10-02 |
Family
ID=72638333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020096392.7U Expired - Fee Related CN211623865U (en) | 2020-01-16 | 2020-01-16 | Marine hydraulic cylinder with multistage buffer gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211623865U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780633A (en) * | 2021-01-06 | 2021-05-11 | 安徽鼎图液压设备有限公司 | Double-cylinder hydraulic oil cylinder |
| CN113883125A (en) * | 2021-10-28 | 2022-01-04 | 山东远观恩福机械设备有限公司 | A metallurgical cylinder with multi-stage buffer function |
| CN117249144A (en) * | 2023-11-15 | 2023-12-19 | 常州市振跃液压机械有限公司 | Hydraulic cylinder with buffer performance for engineering machinery |
-
2020
- 2020-01-16 CN CN202020096392.7U patent/CN211623865U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112780633A (en) * | 2021-01-06 | 2021-05-11 | 安徽鼎图液压设备有限公司 | Double-cylinder hydraulic oil cylinder |
| CN113883125A (en) * | 2021-10-28 | 2022-01-04 | 山东远观恩福机械设备有限公司 | A metallurgical cylinder with multi-stage buffer function |
| CN113883125B (en) * | 2021-10-28 | 2023-12-22 | 山东远观恩福机械设备有限公司 | Metallurgical cylinder with multistage cushioning effect |
| CN117249144A (en) * | 2023-11-15 | 2023-12-19 | 常州市振跃液压机械有限公司 | Hydraulic cylinder with buffer performance for engineering machinery |
| CN117249144B (en) * | 2023-11-15 | 2024-01-26 | 常州市振跃液压机械有限公司 | Hydraulic cylinder with buffer performance for engineering machinery |
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|---|---|---|---|
| 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: 20201002 |