Hydraulic cylinder with buffering function

Abstract

The utility model relates to the technical field of hydraulic cylinders, and discloses a hydraulic cylinder with buffering, which comprises a hydraulic cylinder mechanism, a cleaning mechanism is fixedly arranged at the lower end of the hydraulic cylinder mechanism through threads, the hydraulic cylinder mechanism comprises an outer cylinder, and an inner cylinder is fixedly arranged in the middle of the inner wall of the outer cylinder. And check blocks are hinged to the lower ends of the inner walls of the two sides of the outer cylinder, spring dampers are hinged to the lower ends of the two check blocks, a piston body is slidably arranged in the middle of the inner cylinder, the cleaning mechanism comprises a detection ring, and a mounting clamping ring is fixed to the lower end of the detection ring in a threaded mode. According to the device, the two layers of cylinder barrels, the outer barrel and the inner barrel are arranged, the piston moves up and down in the middle of the inner barrel, the arrangement of the inner barrel is beneficial to reserving sufficient space for a buffer assembly installed on the inner wall of the outer barrel, the buffer assembly is prevented from blocking the piston and the piston rod on the premise that the sealing performance is not damaged, and use is convenient; and the arrangement of the buffering assembly is beneficial to enhancing buffering performance and convenient to use.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder with a buffer. Background Art

[0002] A hydraulic cylinder is an actuator that converts hydraulic energy into mechanical energy. It can achieve linear reciprocating motion or swinging motion. The structure of the hydraulic cylinder is relatively simple and it works reliably. It is suitable for hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​its piston and the pressure difference on both sides. The hydraulic cylinder is usually composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device.

[0003] When a traditional hydraulic cylinder is working, the piston rod pushes the piston to move in the inner cavity of the cylinder body, causing the volume of the cavities on both sides of the piston to change, thereby forcing the hydraulic oil on one side of the piston to flow out of the cavity and the hydraulic oil to flow into the cavity on the other side of the piston. In this process, buffering is achieved by hydraulic damping of the hydraulic oil, and no other buffer components are set, so the buffering performance is weak. Therefore, the utility model provides a hydraulic cylinder with buffer to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a hydraulic cylinder with a buffer is proposed. The device is provided with two layers of cylinder barrels, an outer barrel and an inner barrel, and the piston moves up and down in the middle of the inner barrel. The arrangement of the inner barrel is conducive to leaving sufficient space for the buffer component installed on the inner wall of the outer barrel, and the buffer component is prevented from obstructing the piston and the piston rod without destroying the sealing, which is convenient for use. The arrangement of the buffer component is also conducive to enhancing the buffering performance and facilitating use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a hydraulic cylinder with a buffer, comprising a hydraulic cylinder mechanism, a cleaning mechanism is fixedly arranged at the lower end of the hydraulic cylinder mechanism by a thread, the hydraulic cylinder mechanism comprises an outer cylinder, an inner cylinder is fixedly arranged at the middle position of the inner wall of the outer cylinder, stoppers are hingedly arranged at the lower ends of the inner walls of both sides of the outer cylinder, spring dampers are hingedly arranged at the lower ends of the two stoppers, and a piston body is slidably arranged at the middle of the inner cylinder;

[0006] The cleaning mechanism comprises a detection ring, a mounting collar is threadedly fixed to the lower end of the detection ring, a cleaning brush is fixedly arranged on the inner wall of the mounting collar, and a plurality of detection head mounting holes are fixedly arranged at the upper end of the inner wall of the detection ring;

[0007] Through the above technical scheme, the hydraulic cylinder mechanism is conducive to the installation of the buffer assembly and the cleaning mechanism, the cleaning mechanism is conducive to cleaning and monitoring the outer surface of the piston rod body, the outer cylinder is conducive to the use in conjunction with the inner cylinder, the inner cylinder is conducive to increasing the installation space for the buffer assembly, the block is conducive to the use in conjunction with the spring damper, which is conducive to enhancing the buffering performance, the piston body is conducive to piston movement, the detection ring is conducive to the installation of the detection probe, which is conducive to the detection of the outer surface of the piston rod, the installation clamping ring is conducive to the installation of the cleaning brush, which is conducive to cleaning the dust on the outer surface of the piston rod, and the detection head mounting hole is conducive to the welding installation of the detection head.

[0008] Furthermore, mounting plates are fixedly arranged at the upper positions of the front and rear ends of the detection ring, and mounting hole bodies are opened at the lower ends of the two mounting plates;

[0009] Through the above technical solution, the mounting plate is conducive to matching the threaded mounting detection ring of the mounting hole body.

[0010] Furthermore, a piston rod body is fixedly arranged at the lower end of the piston body, and an end cover sealing ring is fixedly arranged at the lower end of the inner wall on both sides of the outer cylinder;

[0011] Through the above technical solution, the piston rod body is conducive to linear motion, and the end cover sealing ring is conducive to preventing oil leakage.

[0012] Furthermore, a piston rod sealing ring is fixedly arranged at the upper middle end of the end cover sealing ring, and a dust ring is fixedly arranged at the lower middle end of the end cover sealing ring;

[0013] Through the above technical solution, the piston rod sealing ring is helpful to enhance the sealing performance, and the dustproof ring is helpful to prevent dust from entering.

[0014] Furthermore, a mounting groove is provided at the lower end of the inner wall of the detection circle, and a power cord is fixedly provided at one side of the detection circle;

[0015] Through the above technical solution, the installation groove is conducive to the installation of the clamp ring through screws, and the power cord is conducive to the connection with the Binci LS metal surface grease content detector.

[0016] Furthermore, a No. 1 opening is provided at the upper end of one side of the outer tube;

[0017] The above technical solution is conducive to the injection of hydraulic oil.

[0018] Furthermore, a second opening is provided at the lower end of one side of the outer tube;

[0019] The above technical solution is conducive to the injection of hydraulic oil.

[0020] The utility model has the following beneficial effects:

[0021] 1. The utility model proposes a hydraulic cylinder with a buffer. When a traditional hydraulic cylinder is working, the piston is pushed to move in the inner cavity of the cylinder body by the piston rod, so that the volume of the cavity on both sides of the piston changes, thereby forcing the hydraulic oil on one side of the piston to flow out of the cavity, while the cavity on the other side of the piston flows into the hydraulic oil. In this process, buffering is achieved by hydraulic damping of the hydraulic oil. No other buffer components are set, and the buffering performance is weak. The device is provided with two layers of cylinder barrels, an outer barrel and an inner barrel, and the piston moves up and down in the middle of the inner barrel. The setting of the inner barrel is conducive to leaving sufficient space for the buffer component installed on the inner wall of the outer barrel, and preventing the buffer component from obstructing the piston and the piston rod without destroying the sealing performance, which is convenient for use. The setting of the buffer component is also conducive to enhancing the buffering performance and facilitating use.

[0022] 2. The utility model proposes a hydraulic cylinder with a buffer. The device also has a cleaning mechanism at the lower end of the hydraulic cylinder mechanism. The cleaning mechanism is provided with a detection module and a cleaning module. The detection module and the cleaning module are threadedly installed to facilitate the disassembly of the cleaning module. The detection module is provided with a detection ring and a detection head mounting hole. After connecting the detection head and the power cord, the outer surface of the piston rod body is detected by the Binci LS3080 metal surface grease content detector to detect whether there is oil leakage, and the dust on the outer surface of the piston rod body is brushed away by a cleaning brush. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is an axonometric schematic diagram of the utility model;

[0024] Figure 2 This is a bottom-up axonometric schematic diagram of the present invention;

[0025] Figure 3 It is a schematic diagram of the expanded axonometric view of the cleaning mechanism of the utility model;

[0026] Figure 4 It is a front cross-sectional schematic diagram of the utility model.

[0027] Legend:

[0028] 1. Hydraulic cylinder mechanism; 2. Cleaning mechanism; 101. Outer cylinder; 102. No. 1 port; 103. No. 2 port; 104. Inner cylinder; 105. Piston body; 106. Piston rod body; 107. Stopper; 108. Spring damper; 109. End cover seal ring; 110. Piston rod seal ring; 111. Dustproof ring; 201. Detection ring; 202. Mounting clamp ring; 203. Mounting plate; 204. Power cord; 205. Detection head mounting hole; 206. Mounting hole body; 207. Mounting slot; 208. Cleaning brush. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-2 4. An embodiment of the utility model is as follows: a hydraulic cylinder with a buffer comprises a hydraulic cylinder mechanism 1, the hydraulic cylinder mechanism 1 comprises an outer cylinder 101, an inner cylinder 104 is fixedly provided at the middle position of the inner wall of the outer cylinder 101, blocks 107 are hingedly provided at the lower ends of the inner walls on both sides of the outer cylinder 101, spring dampers 108 are hingedly provided at the lower ends of the two blocks 107, a piston body 105 is slidably provided at the middle part of the inner cylinder 104, a piston rod body 106 is fixedly provided at the lower end of the piston body 105, end cover sealing rings 109 are fixedly provided at the lower ends of the inner walls on both sides of the outer cylinder 101, a piston rod sealing ring 110 is fixedly provided at the middle upper end position of the end cover sealing ring 109, a dust ring 111 is fixedly provided at the middle lower end position of the end cover sealing ring 109, a No. 1 port 102 is provided at the upper end position of one side of the outer cylinder 101, and a No. 2 port 103 is provided at the lower end position of one side of the outer cylinder 101.

[0031] The hydraulic cylinder mechanism 1 is conducive to the installation of the buffer component and the cleaning mechanism 2. The device is provided with two layers of cylinders, an outer cylinder 101 and an inner cylinder 104. The piston moves up and down in the middle of the inner cylinder 104. The setting of the inner cylinder 104 is conducive to leaving sufficient space for the buffer component installed on the inner wall of the outer cylinder 101, and preventing the buffer component from obstructing the piston and the piston rod without destroying the sealing performance, which is easy to use. The block 107 is conducive to being used in conjunction with the spring damper 108 to enhance the buffering performance. The piston body 105 is conducive to piston movement, the piston rod body 106 is conducive to linear movement, the end cover sealing ring 109 is conducive to preventing oil leakage, the piston rod sealing ring 110 is conducive to enhancing the sealing performance, and the dust ring 111 is conducive to preventing dust from entering.

[0032] Reference Figure 1-3 A cleaning mechanism 2 is fixedly provided at the lower end of the hydraulic cylinder mechanism 1 by threads, and the cleaning mechanism 2 includes a detection ring 201, a mounting clamp ring 202 is fixedly provided at the lower end of the detection ring 201 by threads, a cleaning brush 208 is fixedly provided on the inner wall of the mounting clamp ring 202, a plurality of detection head mounting holes 205 are fixedly provided at the upper end of the inner wall of the detection ring 201, a mounting plate 203 is fixedly provided at the upper side of the front and rear ends of the detection ring 201, a mounting hole body 206 is provided at the lower ends of the two mounting plates 203, a mounting groove 207 is provided at the lower end of the inner wall of the detection ring 201, and a power cord 204 is fixedly provided at one side of the detection ring 201.

[0033] The cleaning mechanism 2 is provided with a detection module and a cleaning module, and the detection module and the cleaning module are threadedly installed to facilitate the disassembly of the cleaning module. The detection module is provided with a detection ring 201 and a detection head mounting hole 205. After connecting the detection head and the power cord 204, the outer surface of the piston rod body 106 is monitored for oil leakage through the Binci LS3080 metal surface grease content detector, and the dust on the outer surface of the piston rod body 106 is brushed away by the cleaning brush 208. The detection ring 201 is conducive to the installation of the detection probe and the detection of the outer surface of the piston rod. The installation clamp ring 202 is conducive to the installation of the cleaning brush 208 and the cleaning of the dust on the outer surface of the piston rod. The detection head mounting hole 205 is conducive to the welding installation of the detection head. The mounting plate 203 is conducive to the threaded installation of the detection ring 201 in cooperation with the mounting hole body 206. The mounting groove 207 is conducive to the installation of the clamp ring 202 by screws. The power cord 204 is conducive to connection with the Binci LS3080 metal surface grease content detector.

[0034] Working principle: When using this device, first install the detection head and the detection head mounting hole 205, then thread the mounting clamp 202 and the detection ring 201, and then thread the detection ring 201 to the lower end of the outer cylinder 101. After the power cord 204 is connected to the Binci LS3080 metal surface grease content detector, the surface of the piston rod body 106 is monitored. After that, after the hydraulic oil is poured into the upper end of the barrel body, the piston body 105 and the piston rod body 106 will be driven to move downward. When moving to the lower end of the outer cylinder 101, they will contact the block 107. The block 107 and the spring damper 108 are used together to buffer the piston body 105, thereby enhancing the buffering effect and facilitating use.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A hydraulic cylinder with a buffer, comprising a hydraulic cylinder mechanism (1), characterized in that: The cleaning mechanism (2) is fixedly provided at the lower end of the hydraulic cylinder mechanism (1) by means of a thread, the hydraulic cylinder mechanism (1) comprises an outer cylinder (101), an inner cylinder (104) is fixedly provided at the middle position of the inner wall of the outer cylinder (101), stoppers (107) are hingedly provided at the lower ends of the inner walls of both sides of the outer cylinder (101), spring dampers (108) are hingedly provided at the lower ends of the two stoppers (107), and a piston body (105) is slidably provided at the middle of the inner cylinder (104); The cleaning mechanism (2) comprises a detection ring (201), a mounting clamp ring (202) being threadedly fixed to the lower end of the detection ring (201), a cleaning brush (208) being fixedly arranged on the inner wall of the mounting clamp ring (202), and a plurality of detection head mounting holes (205) being fixedly arranged on the upper end of the inner wall of the detection ring (201).

2. A hydraulic cylinder with a buffer according to claim 1, characterized in that: A mounting plate (203) is fixedly arranged at the upper side of the front and rear ends of the detection ring (201), and a mounting hole body (206) is opened at the lower ends of the two mounting plates (203).

3. A hydraulic cylinder with a buffer according to claim 1, characterized in that: A piston rod body (106) is fixedly disposed at the lower end of the piston body (105), and end cover sealing rings (109) are fixedly disposed at the lowest ends of the inner walls on both sides of the outer cylinder (101).

4. A hydraulic cylinder with a buffer according to claim 3, characterized in that: A piston rod sealing ring (110) is fixedly arranged at the upper middle end of the end cover sealing ring (109), and a dustproof ring (111) is fixedly arranged at the lower middle end of the end cover sealing ring (109).

5. The hydraulic cylinder with buffer according to claim 1, characterized in that: A mounting groove (207) is provided at the lower end of the inner wall of the detection circle (201), and a power line (204) is fixedly provided at one side of the detection circle (201).

6. A hydraulic cylinder with a buffer according to claim 1, characterized in that: A first opening (102) is provided at the upper end of one side of the outer cylinder (101).

7. The hydraulic cylinder with a buffer according to claim 1, characterized in that: A second opening (103) is provided at the lower end of one side of the outer cylinder (101).

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