CN220979997U - Hydraulic cylinder with leakage-proof device - Google Patents
Hydraulic cylinder with leakage-proof device Download PDFInfo
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- CN220979997U CN220979997U CN202322664777.5U CN202322664777U CN220979997U CN 220979997 U CN220979997 U CN 220979997U CN 202322664777 U CN202322664777 U CN 202322664777U CN 220979997 U CN220979997 U CN 220979997U
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- cylinder body
- oil
- outer cylinder
- transmission shaft
- hydraulic
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- 230000005540 biological transmission Effects 0.000 claims abstract description 32
- 238000007789 sealing Methods 0.000 claims abstract description 21
- 238000007790 scraping Methods 0.000 claims abstract description 6
- 238000013016 damping Methods 0.000 claims description 21
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 66
- 239000010720 hydraulic oil Substances 0.000 description 9
- 230000000694 effects Effects 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 6
- 239000010705 motor oil Substances 0.000 description 5
- 230000003139 buffering effect Effects 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Actuator (AREA)
Abstract
The utility model discloses a hydraulic cylinder with a leakage-proof device, which relates to the technical field of hydraulic cylinders and comprises an outer cylinder body, wherein a hydraulic transmission shaft is arranged in the outer cylinder body, a piston head is arranged at the tail end of the hydraulic transmission shaft, two groups of oil scraping rubber rings are nested on the outer surface of the piston head, a reinforcing inner wall is arranged on the periphery of the inner surface of the outer cylinder body, the piston head arranged at the tail end of the hydraulic transmission shaft is tightly attached to the reinforcing inner wall of the outer cylinder body, the reinforcing inner wall is of a soft rubber structure, a buffer spring is arranged at the bottom of the inner surface of the outer cylinder body, a buffer baffle is arranged on the outer surface of the top end of the buffer spring, a sealing plug is nested on the front end of the outer cylinder body and is internally provided with an oil filter core, and the sealing plug is provided with an oil sealing gasket which is nested on the outer wall of the hydraulic transmission shaft.
Description
Technical Field
The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder with a leakage-proof device.
Background
The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). The device has simple structure and reliable operation, can avoid a speed reducer when being used for realizing reciprocating motion, has no transmission clearance and stable motion, and is widely applied to hydraulic systems of various machines. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between two sides of the effective area of the piston; the hydraulic cylinder basically consists of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device.
When the existing hydraulic oil cylinder is in process, due to the fact that the hydraulic oil cylinder needs to be continuously rotated to be opened or closed, the continuous repeated working is in contact with a machine, vibration amplitude of the hydraulic oil cylinder can be increased, hydraulic oil leakage easily occurs in the telescopic process of the hydraulic oil cylinder, working efficiency of the hydraulic oil cylinder is reduced, even the hydraulic oil cylinder cannot work normally, the hydraulic oil cylinder is inconvenient to use, and in order to solve the defects of the prior art, the hydraulic oil cylinder with the leakage-proof device is provided.
Disclosure of utility model
The utility model mainly aims to provide a hydraulic cylinder with a leakage-proof device, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
The utility model provides a take leak protection device's hydraulic cylinder, includes the outer cylinder body, the inside hydraulic transmission shaft that is provided with of outer cylinder body, hydraulic transmission shaft end is provided with the piston head, the nested two sets of oil scraping rubber rings that are provided with of piston head surface, outer cylinder body internal surface a week is provided with the reinforcement inner wall, the piston head that hydraulic transmission shaft end set up is hugged closely with the reinforcement inner wall of outer cylinder body inner wall, just the reinforcement inner wall is soft rubber structure, outer cylinder body internal surface bottom is provided with buffer spring, buffer spring top surface is provided with buffer baffle, the nested sealing plug that is provided with of hydraulic transmission shaft outer wall is located outer cylinder body front end, the inside oil filter core that is provided with of sealing plug front end surface is provided with the oil blanket pad and is nested at the hydraulic transmission shaft outer wall equally.
Preferably, the outer cylinder body upper end is provided with two sets of defeated oil pipe, and two sets of defeated oil pipe ends all are provided with the oil inlet and are connected to the outer cylinder body inside, and two sets of defeated oil pipe other end interconnect, and the junction is provided with reposition of redundant personnel oil feeder, reposition of redundant personnel oil feeder upper end surface is provided with the oil pipe connector.
Preferably, the outer cylinder front end surface is provided with two sets of damping springs, two sets of all be provided with the telescopic link in the damping spring, two sets of the telescopic link end is provided with preceding cylinder cap, be provided with the through-hole in the middle of the outer cylinder front end surface, hydraulic drive shaft passes the front end cylinder cap through the through-hole, hydraulic drive shaft front end surface is provided with the front end connector, outer cylinder outer wall is provided with two sets of fixed lantern rings, outer cylinder rear end surface is provided with the rear end connector.
Preferably, the hydraulic transmission shaft is arranged on the inner wall of the outer cylinder body through a through hole, the outer surface of the hydraulic transmission shaft is in sliding connection with the inner surface of the outer cylinder body through the through hole, a groove is formed between the piston head and the hydraulic transmission shaft, and the piston head and the hydraulic transmission shaft are clamped through the groove.
Preferably, an oil inlet is arranged between the oil delivery pipe and the outer cylinder body, the oil delivery pipe and the outer cylinder body are connected through the oil inlet in a clamping mode, a nut is arranged between the oil delivery pipe connector and the split oil delivery device, and the oil delivery pipe connector and the split oil delivery device are detachably connected through the nut.
Preferably, a telescopic rod is arranged between the front cylinder cover and the outer cylinder body, and the front cylinder cover is movably connected with the outer cylinder body through the telescopic rod.
Advantageous effects
Compared with the prior art, the utility model has the following beneficial effects:
1. According to the utility model, through the oil scraping rubber ring arranged on the outer wall of the piston head, the hydraulic transmission shaft can drive the piston head to reciprocate and clean the residual engine oil on the inner wall of the hydraulic cylinder, so that the engine oil is prevented from being blocked in the cylinder, the sealing plug at the front end in the cylinder can perform a good sealing effect on the joint of the hydraulic cylinder, the oil filtering core arranged in the sealing plug can filter excessive oil, and meanwhile, the oil sealing pad at the front end can perform further multi-angle sealing, double protection is performed on the joint, the leakage of oil during working is effectively prevented, and the durability and safety of the device are enhanced.
2. According to the utility model, the oil delivery pipe is arranged on the oil inlet of the outer cylinder body, so that the oil delivery device is utilized to carry out split-flow oil delivery, the oil pipe connector at the upper end of the split-flow oil delivery device realizes unidirectional flow of oil by utilizing the principle of a one-way valve structure, the oil in the cylinder body is prevented from flowing back, so that the phenomenon of oil leakage is avoided, meanwhile, the cylinder body is provided with the damping spring and the buffering structure, the vibration generated during the operation of the oil cylinder is reduced, the oil leakage is further avoided, and the practicability of the device is higher.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
FIG. 2 is a schematic view of the outer cylinder structure of the present utility model;
FIG. 3 is a schematic view of the internal structure of the hydraulic cylinder of the present utility model;
fig. 4 is a schematic diagram of the oil delivery pipe structure of the present utility model.
In the figure: 1. an outer cylinder; 2. a fixed collar; 3. a front end connector; 4. a hydraulic drive shaft; 5. a damping spring; 6. a front cylinder cover; 7. a rear end connector; 8. split-flow oil delivery device; 9. an oil pipe connector; 10. a rubber ring for scraping oil; 11. an oil delivery pipe; 12. a piston head; 13. reinforcing the inner wall; 14. an oil seal pad; 15. a buffer spring; 16. a buffer baffle; 17. a telescopic rod; 18. a through hole; 19. an oil inlet; 20. a sealing plug; 21. an oil filter core.
Detailed Description
The utility model is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the utility model easy to understand.
In the first embodiment, as shown in fig. 1-4, before use, the hydraulic cylinder is fixed in the device and connected with a workpiece through the front end connector 3 and the rear end connector 7, the oil is injected into the cylinder by utilizing the oil pipe connector 9, the oil unidirectional flow is realized by utilizing the principle of a one-way valve structure through the oil pipe connector 9, the oil in the cylinder body is prevented from flowing back, so that the phenomenon of oil leakage occurs, the injected oil is split through the split oil delivery device 8, the two groups of oil delivery pipes 11 are input into the cylinder, the cylinder is started, the hydraulic transmission shaft 4 stretches, the residual engine oil on the inner wall of the hydraulic cylinder can be cleaned while the hydraulic transmission shaft 4 drives the piston head 12 to reciprocate, the engine oil is prevented from blocking in the cylinder, the sealing plug 20 at the front end in the cylinder can perform a good sealing effect on the connecting position of the hydraulic cylinder, the oil filter 21 arranged in the sealing plug 20 can filter redundant oil, and meanwhile the oil seal pad 14 at the front end can perform further multi-angle sealing, the connecting position is doubly protected, and the leakage during working is effectively prevented.
In the second embodiment, as shown in fig. 1-3, by using the damping mechanism comprising the first damping spring 5 and the telescopic rod 17, the hydraulic transmission shaft 4 can collide with the first damping spring 5 through the damping baffle 6 when moving inwards, so that the telescopic rod 17 contracts, thereby achieving the buffering treatment, reducing the shake generated by the collision, the damping spring 5 and the buffering structure are arranged on the cylinder body, when the piston head 12 moves to the bottom of the outer cylinder body 1, the buffer spring 15 is extruded by the buffering baffle 16 to buffer the piston head 12, and the hydraulic transmission shaft 4 can be fixed while the collision friction generated by the piston head 12 during the movement is reduced through the soft reinforced inner wall 13, so that the movement track of the whole hydraulic transmission shaft 4 in the outer cylinder body 1 is more stable, the shake generated during the operation of the cylinder is reduced, and the oil leakage is further avoided.
Principle of operation
It should be noted that, when the hydraulic cylinder with the leak-proof device is used, the hydraulic cylinder is fixed in the device and connected with a workpiece through the front end connector 3 and the rear end connector 7, the oil pipe connector 9 is utilized to carry out oiling on the inside of the cylinder, the oil pipe connector 9 utilizes the principle of a one-way valve structure to realize unidirectional flow of the oil, the oil in the cylinder body is prevented from flowing back, so that the phenomenon of oil leakage occurs, the injected oil is shunted through the shunting oil conveyer 8, the two groups of oil conveying pipes 11 are input into the cylinder body, the cylinder is started, the hydraulic transmission shaft 4 is stretched and moved, the piston head 12 is driven to reciprocate by the hydraulic transmission shaft 4 through the oil scraping rubber ring 10 arranged on the outer wall of the piston head 12, meanwhile, the residual engine oil on the inner wall of the hydraulic cylinder can be cleaned, the connecting part of the hydraulic cylinder can be well sealed through the sealing plug 20 at the front end in the cylinder, meanwhile, the redundant oil can be absorbed and filtered by the oil filter 21 arranged in the sealing pad 20 at the front end, the same time, the damping mechanism formed by the damping spring 5 and the telescopic rod 17 can enable the hydraulic transmission shaft 4 to move inwards, when the cylinder body moves inwards, the damping mechanism formed by the damping spring 6 and the damping spring 5 and the telescopic rod 17 can be extruded to the piston head body through the damping spring 5, and the damping spring 16 can realize the effect when the damping effect is extruded and the damping spring 12 and the damping mechanism is arranged.
The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a take hydraulic cylinder of leak protection device, includes outer cylinder body (1), its characterized in that: the novel oil seal structure is characterized in that the outer cylinder body (1) is arranged inside the outer cylinder body (1), the hydraulic transmission shaft (4) is arranged at the tail end of the outer cylinder body (1), the piston heads (12) are nested to be provided with two groups of oil scraping rubber rings (10), the inner surface of the outer cylinder body (1) is provided with a reinforced inner wall (13) in a circle, the piston heads (12) arranged at the tail end of the hydraulic transmission shaft (4) are tightly attached to the reinforced inner wall (13) of the inner wall of the outer cylinder body (1), the reinforced inner wall (13) is of a soft rubber structure, the buffer springs (15) are arranged at the bottom of the inner surface of the outer cylinder body (1), the buffer baffle (16) is arranged on the outer surface of the top end of the buffer springs (15), the sealing plugs (20) are nested to be arranged at the front end of the outer cylinder body (1), the inner parts of the sealing plugs (20) are provided with oil filter cores (21), and the outer surfaces of the front ends of the sealing plugs (20) are provided with oil seal pads (14) which are also nested on the outer wall of the hydraulic transmission shaft (4).
2. The hydraulic cylinder with the leakage preventing device according to claim 1, wherein: the oil delivery device is characterized in that two groups of oil delivery pipes (11) are arranged at the upper end of the outer surface of the outer cylinder body (1), oil inlets (19) are formed in the tail ends of the oil delivery pipes (11) and are connected to the inside of the outer cylinder body (1), the other ends of the oil delivery pipes (11) are connected with each other, a split oil delivery device (8) is arranged at the joint, and an oil pipe connector (9) is arranged on the outer surface of the upper end of the split oil delivery device (8).
3. The hydraulic cylinder with the leakage preventing device according to claim 1, wherein: the outer cylinder body (1) front end surface is provided with two sets of damping springs (5), two sets of all be provided with telescopic link (17) in damping springs (5), two sets of telescopic link (17) end are provided with preceding cylinder cap (6), be provided with through-hole (18) in the middle of outer cylinder body (1) front end surface, hydraulic transmission shaft (4) pass front end preceding cylinder cap (6) through-hole (18), hydraulic transmission shaft (4) front end surface is provided with front end connector (3), outer cylinder body (1) outer wall is provided with two sets of fixed lantern rings (2), outer cylinder body (1) rear end surface is provided with rear end connector (7).
4. The hydraulic cylinder with leakage preventing device according to claim 3, wherein: the hydraulic transmission shaft (4) is arranged on the inner wall of the outer cylinder body (1) through a through hole (18), the outer surface of the hydraulic transmission shaft (4) and the inner surface of the outer cylinder body (1) are connected in a sliding mode through the through hole (18), a groove is formed between the piston head (12) and the hydraulic transmission shaft (4), and the piston head (12) and the hydraulic transmission shaft (4) are connected in a clamping mode through the groove.
5. The hydraulic cylinder with the leakage preventing device according to claim 2, wherein: an oil inlet (19) is formed between the oil conveying pipe (11) and the outer cylinder body (1), the oil conveying pipe (11) and the outer cylinder body (1) are connected in a clamping mode through the oil inlet (19), a nut is arranged between the oil pipe connector (9) and the split oil conveying device (8), and the oil pipe connector (9) and the split oil conveying device (8) are detachably connected through the nut.
6. The hydraulic cylinder with leakage preventing device according to claim 3, wherein: a telescopic rod (17) is arranged between the front cylinder cover (6) and the outer cylinder body (1), and the front cylinder cover (6) and the outer cylinder body (1) are movably connected through the telescopic rod (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322664777.5U CN220979997U (en) | 2023-10-07 | 2023-10-07 | Hydraulic cylinder with leakage-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322664777.5U CN220979997U (en) | 2023-10-07 | 2023-10-07 | Hydraulic cylinder with leakage-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220979997U true CN220979997U (en) | 2024-05-17 |
Family
ID=91039687
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322664777.5U Active CN220979997U (en) | 2023-10-07 | 2023-10-07 | Hydraulic cylinder with leakage-proof device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220979997U (en) |
-
2023
- 2023-10-07 CN CN202322664777.5U patent/CN220979997U/en active Active
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