Hydraulic oil cylinder with buffering effect
By setting up a buffer structure in the hydraulic cylinder, including sound-absorbing cotton, guide rod, spring body, shock-absorbing rubber plate and spring damper, the problem of hard collision of the hydraulic cylinder during the reciprocating movement of the piston rod is solved, and the buffering effect is achieved, reducing noise and extending service life.
Patent Information
- Application Number
- CN202422638645.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-05
- Estimated Expiration
- 2034-10-31
AI Technical Summary
The existing hydraulic cylinders are prone to hard collisions with the inside during the reciprocating movement of the piston rod, resulting in fluid leakage, damage and noise, affecting their service life.
The buffer structure is arranged inside the hydraulic cylinder, including sound-absorbing cotton, guide rod, spring body, shock-absorbing rubber plate, buffer ring and spring damper. The cushioning effect is achieved through the coordinated movement of these components, reducing noise and extending service life.
It effectively reduces the noise of the hydraulic cylinder during movement, improves the service life, and enhances the wear resistance and impact resistance of the device.
Smart Images
Figure CN223306065U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil cylinders, in particular to a hydraulic oil cylinder with a buffering effect. Background Art
[0002] The 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 using it to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap and the movement is smooth. Therefore, it is widely used in the hydraulic systems of various machines.
[0003] However, the existing hydraulic cylinders on the market are very likely to have a hard collision with the inside of the hydraulic cylinder during the reciprocating motion of the piston rod. Long-term collision may not only cause leakage and damage to the hydraulic cylinder, but also cause noise, affecting the working environment. Therefore, a hydraulic cylinder with a buffering effect is proposed. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a hydraulic cylinder with a buffering effect, which has the advantages of a buffering effect and increased service life of the device, and solves the problem that ordinary hydraulic cylinders do not have a buffering structure.
[0005] To achieve the above object, the present invention provides the following technical solution: a hydraulic cylinder with a buffering effect, comprising a cylinder body, an output shaft is provided inside the cylinder body, and a buffer structure is provided inside the cylinder body;
[0006] The buffer structure includes sound-absorbing cotton, a guide rod, a spring body, a first shock-absorbing rubber plate, a guide ring, a first buffer ring, a second buffer ring and a spring damper. The sound-absorbing cotton is fixedly installed inside the cylinder body, the guide rod is fixedly installed inside the cylinder body, the spring body is fixedly installed on the inner right wall of the cylinder body, the first shock-absorbing rubber plate is fixedly installed on the left side of the spring body, the guide ring is fixedly installed on the outside of the output shaft, the first buffer ring is fixedly installed on the inside of the guide ring, the second buffer ring is fixedly installed on the inside of the guide ring, and the spring damper is fixedly installed on the inner left wall of the cylinder body.
[0007] Furthermore, an oil inlet pipe is fixedly installed on the top of the cylinder body, an oil outlet pipe is fixedly installed on the top of the cylinder body, and the right side of the output shaft passes through the left side of the cylinder body and extends to the interior of the cylinder body.
[0008] Furthermore, the number of the guide rods and the number of the spring bodies are both four, and the interiors of the four spring bodies are sleeved with the exteriors of the four guide rods.
[0009] Furthermore, the right sides of the four spring bodies are fixedly connected to the inner right wall of the cylinder body, the left sides of the four spring bodies are fixedly connected to the right side of the first shock-absorbing rubber plate, and the left side of the first shock-absorbing rubber plate is movably connected to the right side of the guide ring.
[0010] Furthermore, the number of the second buffer rings is two, and both of the second buffer rings are located inside the guide ring, and the outer surface of the guide ring is movably connected to the interior of the cylinder.
[0011] Furthermore, there are several spring dampers, the left sides of several of the spring dampers are fixedly connected to the inner left wall of the cylinder body, the outer surfaces of the four guide rods are movably connected to the second shock-absorbing rubber plate, and the right sides of several of the spring dampers are fixedly connected to the left side of the second shock-absorbing rubber plate.
[0012] Beneficial effects
[0013] Compared with the existing technology, the technical solution of this application has the following beneficial effects:
[0014] The hydraulic cylinder with a buffering effect has the following advantages: when the output shaft reciprocates in the cylinder body, the output shaft drives the guide ring to move on the outer surface of the guide rod, and the first buffer ring and the second buffer ring inside the guide ring will play a preliminary buffering effect due to the special properties of the material. When the output shaft carries the guide ring to move from left to right, the right side of the guide ring will fit with the first shock-absorbing rubber plate and compress the first shock-absorbing rubber plate and the spring body, thereby playing a buffering effect. Then, when the output shaft carries the guide ring to move from right to left, the left side of the guide ring will fit with the second shock-absorbing rubber plate and play a buffering effect through the second shock-absorbing rubber plate and the spring damper, and the noise generated during the use of the device can be effectively reduced by the sound-absorbing cotton, thereby achieving the purpose of having a buffering effect and increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a schematic diagram of the front structure of the utility model;
[0016] Figure 2 This is a front cross-sectional structural diagram of the present utility model;
[0017] Figure 3 For this utility model Figure 2 Enlarged structural diagram at point A in the middle.
[0018] In the figure: 1. Cylinder body; 2. Output shaft; 3. Buffer structure; 301. Sound-absorbing cotton; 302. Guide rod; 303. Spring body; 304. First shock-absorbing rubber plate; 305. Guide ring; 306. First buffer ring; 307. Second buffer ring; 308. Spring damper. DETAILED DESCRIPTION
[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0020] See also Figure 1-3 , a hydraulic oil cylinder with a buffering effect, comprising a cylinder body 1, an output shaft 2 is arranged inside the cylinder body 1, and a buffer structure 3 is arranged inside the cylinder body 1;
[0021] The buffer structure 3 includes sound-absorbing cotton 301, a guide rod 302, a spring body 303, a first shock-absorbing rubber plate 304, a guide ring 305, a first buffer ring 306, a second buffer ring 307 and a spring damper 308. The sound-absorbing cotton 301 is fixedly installed inside the cylinder body 1, the guide rod 302 is fixedly installed inside the cylinder body 1, the spring body 303 is fixedly installed on the inner right wall of the cylinder body 1, the first shock-absorbing rubber plate 304 is fixedly installed on the left side of the spring body 303, the guide ring 305 is fixedly installed on the outside of the output shaft 2, the first buffer ring 306 is fixedly installed inside the guide ring 305, the second buffer ring 307 is fixedly installed inside the guide ring 305, and the spring damper 308 is fixedly installed on the inner left wall of the cylinder body 1.
[0022] Specifically, such as Figure 2 As shown, the first buffer ring 306 and the second buffer ring 307 are both made of silica gel. As a highly active adsorption material, silica gel has the characteristics of an amorphous substance. Its chemical properties are very stable and it does not burn, which provides a guarantee for the safety of the device during operation.
[0023] Specifically, such as Figure 2 As shown, the internal materials of the first shock-absorbing rubber plate 304 and the second shock-absorbing rubber plate are both polyurethane. The polyurethane shock-absorbing plate is made of polyurethane material, has good elasticity and wear resistance, can withstand higher loads and impact forces, has a good shock-absorbing effect, and thus can also provide a beneficial buffering effect.
[0024] Specifically, such as Figure 3 As shown, the spring damper 308 is a device that uses elastic deformation to produce a damping effect. Its main function is to consume vibration energy and make the vibration of the machine or structure become smooth. The main uses of the spring damper 308 include shock absorption and vibration buffering, motion control, energy absorption and dispersion, and protection of structures and equipment.
[0025] Specifically, such as Figure 2As shown, the spring body 303 is a rubber spring. The rubber spring uses the elasticity and deformation ability of the rubber material to buffer impact and vibration. The rubber spring has good wear resistance and corrosion resistance, and has a good damping effect, which can effectively reduce impact and vibration.
[0026] During implementation, follow these steps:
[0027] 1) First, the guide ring 305 is driven by the output shaft 2 to reciprocate along the guide rod 302;
[0028] 2) Then, during the reciprocating motion, preliminary buffering is achieved by the first buffer ring 306 and the second buffer ring 307;
[0029] 3) When the guide ring 305 moves from left to right, it will fit with the first shock-absorbing rubber plate 304 and squeeze the spring body 303 to perform secondary buffering;
[0030] 4) Finally, when the guide ring 305 moves from right to left, it is buffered by the second shock-absorbing rubber plate and the spring damper 308, and the sound-absorbing cotton 301 plays a noise reduction role during operation.
[0031] To sum up, in the hydraulic cylinder with a buffering effect, when the output shaft 2 reciprocates in the cylinder body 1, the output shaft 2 will drive the guide ring 305 to move on the outer surface of the guide rod 302, and the first buffer ring 306 and the second buffer ring 307 inside the guide ring 305 will play a preliminary buffering effect due to the particularity of the material. When the output shaft 2 moves from left to right with the guide ring 305, the right side of the guide ring 305 will fit with the first shock-absorbing rubber plate 304 and compress the first shock-absorbing rubber plate 304 and the spring body 303, thereby playing a buffering effect. Then, when the output shaft 2 moves from right to left with the guide ring 305, the left side of the guide ring 305 will fit with the second shock-absorbing rubber plate, and play a buffering effect through the second shock-absorbing rubber plate and the spring damper 308, and the noise generated during the use of the device can be effectively reduced through the sound-absorbing cotton 301, thereby achieving the purpose of having a buffering effect and increasing the service life of the device.
[0032] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.
[0033] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A hydraulic cylinder with a buffering effect, comprising a cylinder body (1), characterized in that: An output shaft (2) is provided inside the cylinder body (1), and a buffer structure (3) is provided inside the cylinder body (1); The buffer structure (3) comprises sound-absorbing cotton (301), a guide rod (302), a spring body (303), a first shock-absorbing rubber plate (304), a guide ring (305), a first buffer ring (306), a second buffer ring (307) and a spring damper (308); the sound-absorbing cotton (301) is fixedly installed inside the cylinder body (1); the guide rod (302) is fixedly installed inside the cylinder body (1); the spring body (303) is fixedly installed on the inner right wall of the cylinder body (1); the first shock-absorbing rubber plate (304) is fixedly installed on the left side of the spring body (303); the guide ring (305) is fixedly installed on the outside of the output shaft (2); the first buffer ring (306) is fixedly installed inside the guide ring (305); the second buffer ring (307) is fixedly installed inside the guide ring (305); and the spring damper (308) is fixedly installed on the inner left wall of the cylinder body (1).
2. The hydraulic cylinder with a buffering effect according to claim 1, characterized in that: An oil inlet pipe is fixedly installed on the top of the cylinder body (1), an oil outlet pipe is fixedly installed on the top of the cylinder body (1), and the right side of the output shaft (2) passes through the left side of the cylinder body (1) and extends to the interior of the cylinder body (1).
3. The hydraulic cylinder with a buffering effect according to claim 1, characterized in that: The number of the guide rods (302) and the number of the spring bodies (303) are both four, and the interiors of the four spring bodies (303) are sleeved with the exteriors of the four guide rods (302).
4. The hydraulic cylinder with a buffering effect according to claim 1, characterized in that: The right sides of the four spring bodies (303) are fixedly connected to the inner right wall of the cylinder body (1), the left sides of the four spring bodies (303) are fixedly connected to the right side of the first shock-absorbing rubber plate (304), and the left side of the first shock-absorbing rubber plate (304) is movably connected to the right side of the guide ring (305).
5. The hydraulic cylinder with a buffering effect according to claim 1, characterized in that: There are two second buffer rings (307), and both of the second buffer rings (307) are located inside the guide ring (305). The outer surface of the guide ring (305) is movably connected to the inside of the cylinder body (1).
6. The hydraulic cylinder with a buffering effect according to claim 1, characterized in that: There are several spring dampers (308), the left sides of several of the spring dampers (308) are fixedly connected to the inner left wall of the cylinder body (1), the outer surfaces of the four guide rods (302) are movably connected to the second shock-absorbing rubber plate, and the right sides of several of the spring dampers (308) are fixedly connected to the left side of the second shock-absorbing rubber plate.