Hydraulic oil cylinder with buffering function

Abstract

The utility model belongs to the technical field of hydraulic oil cylinders, and particularly relates to a hydraulic oil cylinder with a buffering function, which adopts the following scheme that the hydraulic oil cylinder comprises a hydraulic oil cylinder, the protective frame is fixedly mounted on the outer side of the hydraulic oil cylinder; the number of the positioning mechanisms is two, and the positioning mechanisms are matched with the control mechanism; the buffering mechanism comprises a buffering frame, a buffering cushion, a fixing disc and a mounting plate; the buffering frame is fixedly installed on the top of the installation plate, the installation plate is fixedly installed on the top of the protection frame, the buffering cushion is fixedly installed on the top of the buffering frame, and the fixing disc is fixedly arranged on the outer side of the top of the hydraulic oil rod output shaft in a sleeved mode. The protection frame can buffer the output shaft of the hydraulic oil cylinder, mechanical collision to the hydraulic oil cylinder is relieved, and damage faults such as deformation and cracks of the hydraulic oil cylinder are prevented.

Description

Technical Field

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

[0002] Hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and is widely used in construction machinery.

[0003] In the prior art, after the hydraulic cylinder drives upward a device or mechanism with a large mass, the device or mechanism needs to be lowered from a height. Due to the heavy weight of these devices or mechanisms, the piston and piston rod will descend at a high speed. When they descend to the end point, they will have a strong mechanical collision with the lower cylinder cover, which can easily cause deformation, cracks and other damage to the lower cylinder cover, seriously affecting the service life of the hydraulic cylinder. Therefore, the utility model proposes a hydraulic cylinder with a buffering effect to solve the above problem. Utility Model Content

[0004] The purpose of the utility model is to solve the problem in the prior art that after the hydraulic cylinder drives an equipment or mechanism with a large mass upward, the equipment or mechanism needs to be lowered from a high place. Due to the heavy weight of these equipment or mechanisms, the piston and the piston rod will descend at a high speed. When they descend to the end point, they will have a strong mechanical collision with the lower cylinder cover, which can easily cause the lower cylinder cover to be damaged or malfunctioned such as deformation and cracks, seriously affecting the service life of the hydraulic cylinder. A hydraulic cylinder with a buffering effect is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A hydraulic cylinder with a buffering effect, comprising

[0007] Hydraulic cylinder;

[0008] A guard frame, the guard frame being fixedly mounted on the outside of the hydraulic cylinder;

[0009] A positioning mechanism and a control mechanism, wherein the positioning mechanism is provided in two groups and the positioning mechanism cooperates with the control mechanism;

[0010] A buffer mechanism, comprising: a buffer frame, a buffer pad, a fixing plate and a mounting plate;

[0011] The buffer frame is fixedly mounted on the top of the mounting plate, the mounting plate is fixedly mounted on the top of the guard frame, the buffer pad is fixedly mounted on the top of the buffer frame, and the fixed plate fixed sleeve is arranged on the top outer side of the hydraulic oil rod output shaft.

[0012] As a preferred solution of the present utility model, the positioning mechanism includes: an insertion block and a positioning plate;

[0013] The insert block is fixedly installed on the bottom of the buffer frame, and the positioning plate is rotatably connected to the bottom of the mounting plate.

[0014] As a preferred solution of the present invention, the control mechanism includes: a fixed rod, a sliding block, a connecting frame and a pushing block;

[0015] The fixing rod is fixedly installed on the positioning plate, the sliding block is slidably connected to the fixing rod, the sliding block is rotatably connected to the connecting frame, the connecting frame is slidably connected to the bottom of the mounting plate, and the pushing block is fixedly connected to the connecting frame.

[0016] As a preferred solution of the present invention, the top of the mounting plate is provided with symmetrically arranged rectangular through holes, the number of which is two, and the outer sides of the two insertion blocks are detachably engaged with the inner walls of the two rectangular through holes respectively.

[0017] As a preferred solution of the present invention, rectangular grooves are provided on the two insertion blocks, and the outer sides of the two positioning plates are in sliding contact with the inner walls of the two rectangular grooves respectively.

[0018] As a preferred solution of the present invention, torsion springs are fixedly mounted on the tops of the two positioning plates, and the two torsion springs are fixedly mounted on the bottoms of the mounting plates.

[0019] Beneficial effects:

[0020] 1. After the positioning plate is inserted into the insert block, the positioning plate can connect the insert block and the mounting plate to block the movement of the insert block on the mounting plate, thereby realizing the positioning of the insert block, so that the insert block and the buffer rack can be installed on the mounting plate to realize the installation of the buffer rack;

[0021] 2. After the pushing block is pushed, the pushing block can push the connecting frame to slide on the bottom of the mounting plate. The connecting frame then pushes the two fixing rods and the two positioning plates to rotate through the two sliding blocks, so that the positioning plates can be disengaged from the insertion block, thereby unlocking the insertion block, allowing the insertion block and the buffer pad to be disassembled and replaced;

[0022] In the utility model, by installing the buffer frame and the buffer pad on the top of the anti-slip frame, the guard frame can buffer the output shaft of the hydraulic cylinder, reduce the mechanical collision to the hydraulic cylinder, and prevent the hydraulic cylinder from being damaged or malfunctioned such as deformation and cracks. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the main three-dimensional diagram of the utility model;

[0024] Figure 2 It is a three-dimensional bottom view of the present invention;

[0025] Figure 3This is a main cross-sectional three-dimensional diagram of the present invention;

[0026] Figure 4 It is a three-dimensional diagram of the positioning mechanism and control mechanism of the utility model.

[0027] In the figure: 1. Hydraulic cylinder; 2. Guard frame; 3. Buffer frame; 4. Buffer pad; 5. Fixed plate; 6. Insert block; 7. Positioning plate; 8. Torsion spring; 9. Fixed rod; 10. Sliding block; 11. Connecting frame; 12. Push block; 13. Mounting plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0029] Example

[0030] Reference Figures 1-4 , a hydraulic cylinder with a buffering effect, comprising

[0031] Hydraulic cylinder 1;

[0032] Guard frame 2, guard frame 2 is fixedly installed on the outside of the hydraulic cylinder 1;

[0033] Positioning mechanism and control mechanism, the number of positioning mechanism is two groups, and the positioning mechanism cooperates with the control mechanism;

[0034] Buffer mechanism, the buffer mechanism includes: a buffer frame 3, a buffer pad 4, a fixing plate 5 and a mounting plate 13;

[0035] The buffer frame 3 is fixedly mounted on the top of the mounting plate 13, the mounting plate 13 is fixedly mounted on the top of the guard frame 2, the buffer pad 4 is fixedly mounted on the top of the buffer frame 3, and the fixed plate 5 is fixedly sleeved on the top outer side of the hydraulic oil rod output shaft.

[0036] With the above structure: by installing the buffer frame 3 and the buffer pad 4 on the top of the anti-slip frame, the guard frame 22 can buffer the output shaft of the hydraulic cylinder 1, reduce the mechanical collision of the hydraulic cylinder 1, and prevent the hydraulic cylinder 1 from deformation, cracks and other damage failures.

[0037] As a preferred solution of the present invention, the positioning mechanism includes: an insertion block 6 and a positioning plate 7;

[0038] The insertion block 6 is fixedly mounted on the bottom of the buffer rack 3, and the positioning plate 7 is rotatably connected to the bottom of the mounting plate 13. After the positioning plate 7 is inserted into the insertion block 6, the positioning plate 7 can connect the insertion block 6 and the mounting plate 13 to block the movement of the insertion block 6 on the mounting plate 13, thereby realizing the positioning of the insertion block 6, so that the insertion block 6 and the buffer rack 3 can be installed on the mounting plate 13 to realize the installation of the buffer rack 3.

[0039] As a preferred solution of the present invention, the control mechanism includes: a fixed rod 9, a sliding block 10, a connecting frame 11 and a pushing block 12;

[0040] The fixing rod 9 is fixedly mounted on the positioning plate 7, the sliding block 10 is slidably connected to the fixing rod 9, the sliding block 10 is rotatably connected to the connecting frame 11, the connecting frame 11 is slidably connected to the bottom of the mounting plate 13, and the pushing block 12 is fixedly connected to the connecting frame 11. After the pushing block 12 is pushed, the pushing block 12 can push the connecting frame 11 to slide at the bottom of the mounting plate 13, and the connecting frame 11 then pushes the two fixing rods 9 and the two positioning plates 7 to rotate through the two sliding blocks 10, so that the positioning plate 7 can be disengaged from the insertion block 6, thereby unlocking the insertion block 6, so that the insertion block 6 and the buffer pad 4 can be disassembled to replace the buffer pad 4 and the buffer frame 3.

[0041] As a preferred solution of the present invention, the top of the mounting plate 13 is provided with symmetrically arranged rectangular through holes, and the number of the rectangular through holes is two. The outer sides of the two insertion blocks 6 are respectively detachably connected to the inner walls of the two rectangular through holes. The rectangular through holes are used for inserting the insertion blocks 6, so that the buffer rack 3 can be installed on the mounting plate 13.

[0042] As a preferred solution of the present invention, rectangular grooves are provided on both insertion blocks 6, and the outer sides of the two positioning plates 7 are in sliding contact with the inner walls of the two rectangular grooves respectively. The rectangular grooves are used for inserting the positioning plates 7, so that the positioning plates 7 can block the movement of the insertion blocks 6, thereby realizing the positioning of the insertion blocks 6.

[0043] As a preferred solution of the present invention, torsion springs 8 are fixedly installed on the top of the two positioning plates 7, and the two torsion springs 8 are fixedly installed on the bottom of the mounting plate 13. The torsion springs 8 are used to reset the position of the positioning plates 7 so that the positioning plates 7 can automatically position the position of the insertion block 6.

[0044] It should be noted that the specific type of hydraulic cylinder 1 to be used is selected by relevant technical personnel familiar with this field, and the above-mentioned hydraulic cylinder 1 and the like belong to the existing technology and will not be elaborated in this solution.

[0045] The working principle of the utility model is as follows: when the hydraulic cylinder 1 needs to be buffered, when the output shaft of the hydraulic cylinder 1 drops rapidly, the fixed plate 5 on the output shaft will first fall on the buffer pad 4 and be buffered first to protect the hydraulic cylinder 1. When the buffer pad 4 is used for a long time and needs to be replaced, it is only necessary to push the pushing block 12 at the bottom of the mounting plate 13. After the pushing block 12 is pushed, the pushing block 12 can push the connecting frame 11 to slide on the bottom of the mounting plate 13. The connecting frame 11 then pushes the two fixing rods 9 and the two positioning plates 7 to rotate through the two sliding blocks 10, so that the positioning plate 7 can be separated from the insertion block 6. The insertion block 6 is unlocked so that the insertion block 6 and the buffer pad 4 can be disassembled to replace the buffer pad 4 and the buffer frame 3, and then the new buffer frame 3 is inserted into the top of the mounting plate 13. The insertion block 6 passes through the mounting plate 13, and the positioning plate 7 is released so that the positioning plate 7 can automatically engage with the insertion block 6. After the positioning plate 7 is inserted into the insertion block 6, the positioning plate 7 can connect the insertion block 6 and the mounting plate 13 to block the movement of the insertion block 6 on the mounting plate 13, so that the insertion block 6 can be positioned, so that the insertion block 6 and the buffer frame 3 can be installed on the mounting plate 13 to realize the installation of the buffer frame 3.

[0046] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A hydraulic cylinder with a buffering effect, characterized in that: include Hydraulic cylinder (1); A guard frame (2), wherein the guard frame (2) is fixedly mounted on the outside of the hydraulic cylinder (1); A positioning mechanism and a control mechanism, wherein the positioning mechanism is provided in two groups and the positioning mechanism cooperates with the control mechanism; A buffer mechanism, comprising: a buffer frame (3), a buffer pad (4), a fixing plate (5) and a mounting plate (13); The buffer frame (3) is fixedly mounted on the top of the mounting plate (13), the mounting plate (13) is fixedly mounted on the top of the guard frame (2), the buffer pad (4) is fixedly mounted on the top of the buffer frame (3), and the fixed plate (5) is fixedly sleeved on the top outer side of the hydraulic oil rod output shaft.

2. A hydraulic cylinder with a buffering effect according to claim 1, characterized in that: The positioning mechanism comprises: an insert block (6) and a positioning plate (7); The insert block (6) is fixedly mounted on the bottom of the buffer frame (3), and the positioning plate (7) is rotatably connected to the bottom of the mounting plate (13).

3. The hydraulic cylinder with a buffering effect according to claim 1, characterized in that: The control mechanism comprises: a fixed rod (9), a sliding block (10), a connecting frame (11) and a pushing block (12); The fixing rod (9) is fixedly mounted on the positioning plate (7), the sliding block (10) is slidably connected to the fixing rod (9), the sliding block (10) is rotatably connected to the connecting frame (11), the connecting frame (11) is slidably connected to the bottom of the mounting plate (13), and the pushing block (12) is fixedly connected to the connecting frame (11).

4. The hydraulic cylinder with a buffering effect according to claim 2, characterized in that: The top of the mounting plate (13) is provided with symmetrically arranged rectangular through holes, the number of which is two, and the outer sides of the two insertion blocks (6) are respectively detachably engaged with the inner walls of the two rectangular through holes.

5. The hydraulic cylinder with buffering function according to claim 2, characterized in that: The two inserting blocks (6) are both provided with rectangular grooves, and the outer sides of the two positioning plates (7) are in sliding contact with the inner walls of the two rectangular grooves respectively.

6. The hydraulic cylinder with a buffering function according to claim 2, characterized in that: Torsion springs (8) are fixedly mounted on the tops of the two positioning plates (7), and the two torsion springs (8) are fixedly mounted on the bottoms of the mounting plates (13).

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