Oil cylinder with buffering effect
By setting adjustment screws and buffer valve plates in the oil cylinder, the buffering problem of the oil cylinder when the piston rod is telescopic, the adaptation and stable operation in different hydraulic environments is achieved, and the service life is extended.
Patent Information
- Application Number
- CN202422061486.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The existing oil cylinder lacks buffering effect when the piston rod is telescopic, resulting in a loud impact sound, unfit for the hydraulic environment, and cannot adjust, which affects the service life.
The second round groove, the third round groove, the fourth round groove, the first adjustment screw and the second adjustment screw are designed. The opening size is changed by rotating the adjustment screw, and the hydraulic oil flow is adjusted. Combined with the telescopic rod and the buffer valve plate, the buffering function is realized and direct collision is avoided.
The adaptation of the oil cylinder under different hydraulic environments is achieved, reducing impact sound, extending service life, and improving working stability.
Smart Images
Figure CN223152438U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil cylinders, and more specifically, the utility model relates to an oil cylinder with a buffering effect. Background Technique
[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion. It has a simple structure and reliable operation. When used to achieve reciprocating motion, there is no transmission gap and the motion is stable. Therefore, it is widely used in the hydraulic systems of various machines.
[0003] In the existing oil cylinder, the piston rod does not have a buffering effect during telescoping, or only has a fixed buffering effect. Therefore, when telescoping to the head or tail, the speed is too fast and accompanied by a strong impact sound, or the speed is too slow, and the time required to reach the specified position becomes longer. Moreover, it cannot adapt to different hydraulic environments, showing noise and unadjustable speed in the working environment. When the hydraulic environment is large, the speed is too fast and the sound is too loud. When the hydraulic environment is small, the speed is too slow and the required time becomes longer. Therefore, it needs to be improved. Content of the Utility Model
[0004] In order to overcome the deficiencies of the prior art, the utility model provides an oil cylinder with a buffering effect, which has the advantage of adjusting the buffering effect.
[0005] To achieve the above object, the utility model provides the following technical solution: An oil cylinder with a buffering effect, comprising:
[0006] A left end cover, the right side of the outer surface of the left end cover is fixedly sleeved with a cylinder body, a first circular groove is opened at the top of the right side of the left end cover, a second circular groove is opened at the top of the middle part of the inner cavity of the left end cover, and a second adjusting screw is threadedly sleeved inside the top of the left end cover;
[0007] A right end cover, the left outer surface of the right end cover is fixedly sleeved with the inner part of the right side of the cylinder body, a third circular groove is opened at the top of the left side of the right end cover, and a first oil hole is opened at the left side of the bottom of the right end cover;
[0008] A buffering mechanism, the buffering mechanism is arranged inside the right end cover;
[0009] Among them, the buffering mechanism includes a fourth circular groove, the fourth circular groove is opened at the top of the right end cover, and a first adjusting screw is threadedly sleeved inside the fourth circular groove.
[0010] As a preferred technical solution of the utility model, a second oil hole is opened in the middle of the left side of the left end cover, and a telescopic rod is movably sleeved on the inner surface of the cylinder body.
[0011] As a preferred technical solution of the present utility model, a first sealing ring is fixedly sleeved on the left side of the outer surface of the telescopic rod, and the outer surface of the first sealing ring is movably connected to the inner surface of the cylinder body.
[0012] As a preferred technical solution of the present utility model, a second sealing ring is fixedly sleeved in the middle of the inner cavity of the right end cover, and the inner surface of the second sealing ring is movably connected to the outer surface of the telescopic rod.
[0013] As a preferred technical solution of the present utility model, a first buffer valve plate is movably sleeved on the left side of the outer surface of the telescopic rod, and the outer surface of the first buffer valve plate is movably connected to the inner surface of the left end cover.
[0014] As a preferred technical solution of the present utility model, a second buffer valve plate is movably connected to the left side of the right end cover, and the outer shape of the second buffer valve plate is annular.
[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0016] 1. By providing the second circular groove, the third circular groove, the fourth circular groove, the first adjusting screw and the second adjusting screw, when the first adjusting screw is rotated, the first adjusting screw moves vertically upward along the fourth circular groove. At this time, the opening size on the right side of the third circular groove will be changed, so as to realize the adjustment function of the hydraulic oil on the right side of the inner cavity of the cylinder body. When the second adjusting screw is rotated, the second adjusting screw moves vertically upward. At this time, the opening size at the top of the second circular groove will be changed, so as to realize the adjustment function of the hydraulic oil on the left side of the inner cavity of the cylinder body. Finally, the buffer function of adjusting the left and right movement of the telescopic rod is realized, so that the device can effectively adapt to the working state of the oil cylinder under different hydraulic pressures.
[0017] 2. By providing the telescopic rod, the first buffer valve plate and the second buffer valve plate, when the telescopic rod moves to the left, the inclined surface on the left side of the telescopic rod will squeeze and push the first buffer valve plate, so that the telescopic rod is aligned with the center line of the cylinder body, avoiding direct collision between the telescopic rod and the left end cover. When the telescopic rod moves to the right, the inclined surface on the right side of the telescopic rod will squeeze and push the second buffer valve plate, so that the telescopic rod is aligned with the center line of the cylinder body, thus avoiding direct collision between the telescopic rod and the right end cover. Finally, the purpose of improving the service life of the device is achieved. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a schematic structural diagram of the present utility model;
[0019] Figure 2 is a front sectional structural diagram of the present utility model;
[0020] Figure 3This is a schematic cross-sectional structure diagram of the side of the telescopic rod of the present utility model;
[0021] Figure 4 It is Figure 2 a partial enlarged structure diagram at position A in
[0022] Figure 5 It is Figure 2 a partial enlarged structure diagram at position B in
[0023] In the figure: 1, left end cover; 2, cylinder body; 3, right end cover; 4, first circular groove; 5, second circular groove; 6, third circular groove; 7, fourth circular groove; 8, first adjusting screw; 9, first oil hole; 10, second oil hole; 11, telescopic rod; 12, first sealing ring; 13, second sealing ring; 14, first buffer valve plate; 15, second buffer valve plate; 16, second adjusting screw. Specific embodiments
[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.
[0025] As Figures 1 to 5 shown, the present utility model provides an oil cylinder with a buffering effect, including:
[0026] Left end cover 1, the right side of the outer surface of the left end cover 1 is fixedly sleeved with a cylinder body 2, a first circular groove 4 is opened at the top of the right side of the left end cover 1, a second circular groove 5 is opened at the top of the middle part of the inner cavity of the left end cover 1, and a second adjusting screw 16 is threadedly sleeved inside the top of the left end cover 1;
[0027] Right end cover 3, the outer surface of the left side of the right end cover 3 is fixedly sleeved with the inside of the right side of the cylinder body 2, a third circular groove 6 is opened at the top of the left side of the right end cover 3, and a first oil hole 9 is opened at the left side of the bottom of the right end cover 3;
[0028] Buffering mechanism, the buffering mechanism is arranged inside the right end cover 3;
[0029] Among them, the buffering mechanism includes a fourth circular groove 7, the fourth circular groove 7 is opened at the top of the right end cover 3, and a first adjusting screw 8 is threadedly sleeved inside the fourth circular groove 7.
[0030] When rotating the first adjusting screw 8, the first adjusting screw 8 will move upward along the fourth circular groove 7, and the first adjusting screw 8 will release the sealing effect on the right side of the third circular groove 6, so that the hydraulic oil on the right side of the inner cavity of the cylinder body 2 can pass through the third circular groove 6, the fourth circular groove 7 and the inside of the right end cover 3 in sequence, and finally be discharged from the device through the first oil hole 9.
[0031] Among them, a second oil hole 10 is opened in the middle of the left side of the left end cover 1, and a telescopic rod 11 is movably sleeved on the inner surface of the cylinder body 2.
[0032] When the second oil hole 10 injects hydraulic oil into the left side of the inner cavity of the cylinder body 2, the telescopic rod 11 will move horizontally to the right.
[0033] Among them, a first sealing ring 12 is fixedly sleeved on the left side of the outer surface of the telescopic rod 11, and the outer surface of the first sealing ring 12 is movably connected with the inner surface of the cylinder body 2.
[0034] Due to the design of the first sealing ring 12, the partition effect on the hydraulic oil in the left and right cavities of the cylinder body 2 is realized.
[0035] Among them, a second sealing ring 13 is fixedly sleeved in the middle of the inner cavity of the right end cover 3, and the inner surface of the second sealing ring 13 is movably connected with the outer surface of the telescopic rod 11.
[0036] Due to the design of the second sealing ring 13, the sealing effect on the hydraulic oil on the right side of the inner cavity of the cylinder body 2 is realized.
[0037] Among them, a first buffer valve plate 14 is movably sleeved on the left side of the outer surface of the telescopic rod 11, and the outer surface of the first buffer valve plate 14 is movably connected with the inner surface of the left end cover 1.
[0038] When the telescopic rod 11 moves to the left, the inclined surface on the left side of the telescopic rod 11 will squeeze and push the first buffer valve plate 14, so that the telescopic rod 11 is aligned with the center line of the cylinder body 2, avoiding direct collision between the telescopic rod 11 and the left end cover 1.
[0039] Among them, a second buffer valve plate 15 is movably connected to the left side of the right end cover 3, and the outer shape of the second buffer valve plate 15 is annular.
[0040] When the telescopic rod 11 moves to the right, the inclined surface on the right side of the telescopic rod 11 will squeeze and push the second buffer valve plate 15, so that the telescopic rod 11 is aligned with the center line of the cylinder body 2, avoiding direct collision between the telescopic rod 11 and the right end cover 3.
[0041] The working principle and usage process of the present utility model:
[0042] First, when the second oil hole 10 injects hydraulic oil into the left side of the inner cavity of the cylinder body 2, it will cause the telescopic rod 11 to move horizontally to the right. At this time, the inclined surface on the right side of the telescopic rod 11 will squeeze and push the second buffer valve plate 15, making the telescopic rod 11 align with the center line of the cylinder body 2, thus avoiding direct impact between the telescopic rod 11 and the right end cover 3. When the telescopic rod 11 moves to the right and seals the inner cavity of the right end cover 3, rotate the first adjusting screw 8 so that the first adjusting screw 8 moves vertically upward along the fourth circular groove 7. At this time, the opening size on the right side of the third circular groove 6 will be changed, thus realizing the adjustment function of the hydraulic oil on the right side of the inner cavity of the cylinder body 2. At this time, the hydraulic oil on the right side of the inner cavity of the cylinder body 2 will be discharged from the device successively through the third circular groove 6, the fourth circular groove 7 and the first oil hole 9, completing the buffering effect of the telescopic rod 11 moving to the right, so that the device can effectively adapt to the working state of the oil cylinder under different hydraulic pressures.
[0043] When the first oil hole 9 injects hydraulic oil into the right side of the inner cavity of the cylinder body 2, it will cause the telescopic rod 11 to move horizontally to the left. As a result, the inclined surface on the left side of the telescopic rod 11 will squeeze and push the first buffer valve plate 14, making the telescopic rod 11 align with the center line of the cylinder body 2, thus avoiding direct impact between the telescopic rod 11 and the left end cover 1, and finally achieving the purpose of extending the service life of the device. When the telescopic rod 11 moves to the left and seals the left side of the inner cavity of the left end cover 1, rotate the second adjusting screw 16 at this time, so that the second adjusting screw 16 moves vertically upward. At this time, the opening size at the top of the second circular groove 5 will be changed, thus realizing the adjustment function of the hydraulic oil on the left side of the inner cavity of the cylinder body 2. At this time, the hydraulic oil on the left side of the inner cavity of the cylinder body 2 will be discharged from the device successively through the first circular groove 4, the second circular groove 5 and the second oil hole 10.
[0044] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.
[0045] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An oil cylinder with a buffering effect, characterized in that, It includes: A left end cover (1), on the right side of the outer surface of the left end cover (1), a cylinder body (2) is fixedly sleeved. On the top of the right side of the left end cover (1), a first circular groove (4) is opened. On the top of the middle part of the inner cavity of the left end cover (1), a second circular groove (5) is opened. Inside the top of the left end cover (1), a second adjusting screw (16) is threadedly sleeved. A right end cover (3), on the outer surface of the left side of the right end cover (3), it is fixedly sleeved with the inside of the right side of the cylinder body (2). On the top of the left side of the right end cover (3), a third circular groove (6) is opened. On the left side of the bottom of the right end cover (3), a first oil hole (9) is opened. A buffer mechanism, the buffer mechanism is arranged inside the right end cover (3). Among them, the buffer mechanism includes a fourth circular groove (7), the fourth circular groove (7) is opened on the top of the right end cover (3), and a first adjusting screw (8) is threadedly sleeved inside the fourth circular groove (7).
2. The hydraulic cylinder with a buffering effect according to claim 1, wherein: On the middle part of the left side of the left end cover (1), a second oil hole (10) is opened. Inside the cylinder body (2), a telescopic rod (11) is movably sleeved.
3. The hydraulic cylinder with a buffering effect according to claim 2, wherein: On the left side of the outer surface of the telescopic rod (11), a first sealing ring (12) is fixedly sleeved, and the outer surface of the first sealing ring (12) is movably connected with the inner surface of the cylinder body (2).
4. A hydraulic cylinder with a buffering effect according to claim 1, characterized in that: In the middle part of the inner cavity of the right end cover (3), a second sealing ring (13) is fixedly sleeved, and the inner surface of the second sealing ring (13) is movably connected with the outer surface of the telescopic rod (11).
5. The oil cylinder with a buffering effect according to claim 2, wherein: On the left side of the outer surface of the telescopic rod (11), a first buffer valve plate (14) is movably sleeved, and the outer surface of the first buffer valve plate (14) is movably connected with the inner surface of the left end cover (1).
6. The hydraulic cylinder with a buffering effect according to claim 1, wherein: On the left side of the right end cover (3), a second buffer valve plate (15) is movably connected, and the outer shape of the second buffer valve plate (15) is annular.