Gas-liquid composite buffer capable of preventing dislocation

Abstract

The utility model relates to the field of gas-liquid composite buffers, in particular to a gas-liquid composite buffer capable of preventing dislocation, which comprises a composite buffer outer cylinder, a main body for buffering equipment, a composite buffer inner cylinder, and a buffer arranged in the composite buffer outer cylinder and used for buffering with the outer cylinder, and a buffer guide rod is movably connected into the composite buffer inner cylinder. The composite buffer is provided with the guide plate, the guide block, the guide seat, the guide sleeve, the guide column, the upper oil seal, the lower oil seal and the throttling hole, and when the buffer guide rod conducts telescopic buffering towards the interior of the inner cylinder of the composite buffer, the guide plate outside the buffer guide rod can press the guide damping spring in the descending process so that the guide plate can push the guide block; in this way, the guide block presses the guide telescopic spring through the guide base, the composite buffer inner cylinder is pushed to conduct buffering in the composite buffer outer cylinder, and at the moment, the guide sleeve at the bottom of the composite buffer inner cylinder can be aligned to the outer portion of the guide column in a sleeving mode to form positioning.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of gas-liquid composite bumper, concretely relates to a gas-liquid composite bumper preventing misplacement. BACKGROUND

[0002] The gas-liquid composite bumper is a kind of high-efficiency buffer device, combines the advantages of gas and liquid, realizes excellent buffer vibration-absorbing effect, when being impacted, the gas-liquid composite bumper absorbs impact energy through the mutual synergistic effect of hydraulic oil and nitrogen, in the buffering process, the hydraulic oil flows through the throttle hole to generate viscous damping force, most of impact energy is converted into heat energy dissipation, simultaneously, a small part of nitrogen in the nitrogen cavity is compressed, and is converted into potential energy storage of the bumper, when load is removed, the compressed nitrogen expands to release potential energy, overcomes return damping work, and the potential energy is converted into heat energy dissipation again, the working principle makes the gas-liquid composite bumper can bear large load with small deformation, and has long service life.

[0003] The existing gas-liquid composite bumper lacks misplacement prevention structure in the process of use, the relative position between inner cylinder and outer cylinder changes in the process that the guide rod of the gas-liquid composite bumper is pressed and stretched, the flow path of hydraulic oil and gas is unstable, misplacement occurs, the unstable flow path also affects the resistance generated by the bumper in long-term use, so that the buffering effect is difficult to predict and control, the gas-liquid composite bumper lacking misplacement prevention structure is easy to be damaged and has short service life, so it needs more frequent maintenance and replacement.

[0004] Therefore, it is necessary to provide a gas-liquid composite bumper preventing misplacement to solve the above problems. CONTENT OF UTILITY MODEL

[0005] The utility model discloses a purpose is provided with a kind of gas-liquid composite bumper of preventing misplacement, by guide plate, guide block, guide seat, guide sleeve, guide column, upper oil seal, lower oil seal and orifice, realize the gas-liquid composite bumper with the structure and ability of preventing misplacement, it also has multiple buffering structure, such design forms synergistic effect, can more effectively absorb and disperse impact force, improve the buffering effect of buffer, and also make the internal components of buffer more compact and orderly, while guide sleeve will be accurately sleeved in the outside of guide column, form stable positioning structure, can prevent buffer from misplacement or deviation when being impacted, ensure that buffer always remains in correct position, so that the gas-liquid composite bumper significantly improves buffering effect, enhances the effect of preventing misplacement, prolongs service life, to solve the gas-liquid composite bumper in prior art in the use process, due to the guide rod of gas-liquid composite bumper lower pressure telescopic process, if lack of misplacement prevention structure, the relative position between inner cylinder and outer cylinder can change, leading to unstable flow path of hydraulic oil and gas, so that misplacement occurs, so long-term use, this unstable flow path also affects the resistance generated by buffer, so that buffering effect is difficult to predict and control, gas-liquid composite bumper lacking misplacement prevention structure is easy to damage and short service life, therefore need more frequent maintenance and replacement problem.

[0006] In order to achieve the above object, the utility model provides the following technical scheme: a kind of gas-liquid composite bumper of preventing misplacement, including composite buffer outer cylinder, for the main body of equipment buffering;

[0007] Composite buffer inner cylinder is arranged in the inside of composite buffer outer cylinder, is used to form buffering with outer cylinder, and buffer guide rod is movably connected in the inside of composite buffer inner cylinder, guide plate is fixedly installed on the outside of buffer guide rod, guide damping spring is movably connected below guide plate, guide block is fixedly connected on the outside of buffer guide rod;

[0008] Guide seat is arranged at the bottom of guide block, is used to movably connect guide telescopic spring, and guide sleeve is fixedly installed on the bottom of composite buffer inner cylinder, guide column is movably sleeved in the inside of guide sleeve, damping telescopic spring is fixedly installed on the top of guide column;

[0009] Upper oil seal is arranged in the inside of composite buffer inner cylinder, is used to improve sealing, and lower oil seal is fixedly installed below upper oil seal, orifice is formed on the surface of lower oil seal, and buffer piston is fixedly installed at the bottom end of buffer guide rod.

[0010] Preferably, the bottom of the composite buffer outer cylinder is fixedly installed with a bottom mounting plate, and the inside of the bottom mounting plate is penetrated by a plurality of positioning bolts, and the top end of the buffer guide rod is fixedly installed with an upper connecting sleeve.

[0011] Preferably, the guide block is in sliding connection with the outer cylinder of the composite buffer, and the guide block is in fixed connection with the guide seat.

[0012] Preferably, the guide sleeve is in sliding connection with the guide column, and the guide column is distributed at equal intervals in the inner part of the outer cylinder of the composite buffer.

[0013] Preferably, the number of the throttle holes is set to be multiple, and the multiple throttle holes are distributed in a ring array on the lower oil seal.

[0014] Preferably, the lower part of the buffer piston is movably connected with an inner buffer damping spring, and the inner part of the inner cylinder of the composite buffer is provided with an inner gas-liquid groove.

[0015] In the above technical solution, the technical effects and advantages of the utility model are provided:

[0016] The utility model discloses a guide plate, guide block, guide seat, guide sleeve, guide column, upper oil seal, lower oil seal and throttle hole are provided, along with the buffer guide rod telescopic buffering to the inner part of the composite buffer, the guide plate of buffer guide rod outside will be pressed in the process of falling guide damping spring makes the guide plate push guide block, so that guide block also through guide seat press guide telescopic spring, push the inner cylinder of composite buffer in the inner part of the outer cylinder of composite buffer buffer, and the guide sleeve of the inner cylinder of composite buffer bottom will be aligned with the outer part of the guide column and form the positioning, simultaneously, when the buffer guide rod continues to reciprocate the inner cylinder of composite buffer, buffer piston presses the gas-liquid in the inner part of the inner gas-liquid groove, and the gas-liquid is evenly overflowed from the throttle hole of lower oil seal to form the resistance flow, improve the resistance, so that the gas-liquid composite buffer has the structure and the ability of preventing misplacement, also has multiple buffer structure, the design forms the synergies, can more effectively absorb and disperse impact force, improve the buffer effect of buffer, and also make the internal components of buffer more compact and orderly, and the guide sleeve is also accurately sleeved on the outer part of the guide column, forms stable positioning structure, can prevent the misplacement or deviation of buffer when being impacted, ensures that the buffer always remains on the correct position, and the gas-liquid in the inner part of the inner gas-liquid groove is pressed down by the buffer piston, so that the gas-liquid is evenly overflowed from the throttle hole, forms the resistance flow and increases the resistance, and the synergies of the gas-liquid damping can further enhance the buffer effect, so that the buffer can better cope with various impact loads, so that the gas-liquid composite buffer significantly improves the buffer effect, enhances the misplacement prevention ability, prolongs the service life. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments or prior art, the drawings needed in the embodiments will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments described in the application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0018] Figure 1 It is the whole structure schematic view of the utility model;

[0019] Figure 2 It is the buffer guide post structure schematic view of the utility model;

[0020] Figure 3 It is the guide sleeve structure schematic view of the utility model;

[0021] Figure 4 It is the oil seal structure schematic view of the utility model;

[0022] Figure 5 It is the internal buffering damping spring structure schematic view of the utility model.

[0023] Mark explanation:

[0024] 1, composite buffer outer cylinder;2, composite buffer inner cylinder;3, buffer guide post;4, bottom mounting plate;5, positioning bolt;6, upper connecting sleeve;7, guide plate;8, guide damping spring;9, guide block;10, guide seat;11, guide expansion spring;12, guide sleeve;13, guide column;14, damping expansion spring;15, upper oil seal;16, lower oil seal;17, throttle hole;18, buffer piston;19, internal buffering damping spring;20, internal gas-liquid groove. Specific implementation

[0025] In order to make the technical personnel of the prior art better understand the technical scheme of the utility model, the utility model will be further introduced in detail below in conjunction with the drawings.

[0026] The utility model provides a kind of gas-liquid composite buffer for preventing misplacement as shown in Figures 1-5 Main body for equipment buffering;

[0027] Composite buffer inner cylinder 2 is arranged in the inside of composite buffer outer cylinder 1, is used to form buffering with outer cylinder, and the inside of composite buffer inner cylinder 2 is movably connected with buffer guide post 3, and the outside of buffer guide post 3 is fixedly installed with guide plate 7, and the below of guide plate 7 is movably connected with guide damping spring 8, and the outside of buffer guide post 3 is fixedly connected with guide block 9;

[0028] Guide seat 10 is arranged at the bottom of guide block 9, is used to movably connect guide expansion spring 11, and the bottom of composite buffer inner cylinder 2 is fixedly installed with guide sleeve 12, and guide sleeve 12 is movably sleeved with guide column 13 in the inside, and the top of guide column 13 is fixedly installed with damping expansion spring 14;

[0029] The upper oil seal 15 is arranged in the inner cylinder 2 of the composite buffer for improving the sealing performance, and the lower oil seal 16 is fixedly installed below the upper oil seal 15, the surface of the lower oil seal 16 is provided with the throttling hole 17, the bottom end of the buffer guide rod 3 is fixedly installed with the buffer piston 18, when the buffer guide rod 3 continues to extend and retract in the inner cylinder 2 of the composite buffer, the buffer piston 18 presses the gas-liquid in the inner gas-liquid groove 20 downwards, so that the gas-liquid uniformly overflows from the throttling hole 17 of the lower oil seal 16 to form the flow resistance, and the resistance is improved.

[0030] As shown in Figure 1 , Figure 2 and Figure 3 , the bottom of the outer cylinder 1 of the composite buffer is fixedly installed with the bottom mounting plate 4, the periphery of the inner portion of the bottom mounting plate 4 is penetrated by the positioning bolt 5, the top end of the buffer guide rod 3 is fixedly installed with the upper connecting sleeve 6, the bottom mounting plate 4 and the upper connecting sleeve 6 improve the installation range of the gas-liquid composite buffer, so that the gas-liquid composite buffer is more suitable for being connected and installed with external equipment, the guide block 9 is slidingly connected with the outer cylinder 1 of the composite buffer, the guide block 9 is fixedly connected with the guide seat 10, when the buffer guide rod 3 extends and retracts in the inner cylinder 2 of the composite buffer, the guide plate 7 outside the buffer guide rod 3 will press the guide damping spring 8 in the process of descending, so that the guide plate 7 pushes the guide block 9, and the guide block 9 also presses the guide telescopic spring 11 through the guide seat 10, so as to push the inner cylinder 2 of the composite buffer to buffer in the inner portion of the outer cylinder 1 of the composite buffer, the guide sleeve 12 is slidingly connected with the guide column 13, the guide columns 13 are equidistantly distributed in the inner portion of the outer cylinder 1 of the composite buffer, and the guide sleeve 12 is also accurately sleeved on the outside of the guide column 13, so as to form a stable positioning structure, which can prevent the buffer from being dislocated or deviated when the buffer is impacted, and ensure that the buffer always remains in the correct position.

[0031] As shown in Figure 1 , Figure 4 and Figure 5 , the number of throttling holes 17 is set to be multiple, and the multiple throttling holes 17 are arranged in a ring array on the lower oil seal 16, when the buffer guide rod 3 continues to extend and retract in the inner cylinder 2 of the composite buffer, the buffer piston 18 presses the gas-liquid in the inner gas-liquid groove 20 downwards, so that the gas-liquid uniformly overflows from the throttling hole 17 of the lower oil seal 16 to form the flow resistance, and the resistance is improved, the inner buffer damping spring 19 is movably connected below the buffer piston 18, the inner gas-liquid groove 20 is arranged in the inner portion of the inner cylinder 2 of the composite buffer, and the buffer piston 18 presses the gas-liquid in the inner gas-liquid groove 20 downwards, so that the gas-liquid uniformly overflows from the throttling hole 17 to form the flow resistance and increase the resistance, and the synergistic effect of the gas-liquid damping can further enhance the buffering effect, so that the buffer can better cope with various impact loads.

[0032] The utility model discloses a gas-liquid composite bumper, which comprises a composite bumper outer cylinder 1, a composite bumper inner cylinder 2, a buffer guide rod 3, a guide plate 7, a guide block 9, a guide seat 10, a guide telescopic spring 11, a guide sleeve 12, a guide column 13, a buffer piston 18, a gas-liquid groove 20, an oil seal 16 and a throttle hole 17.

[0033] The utility model discloses a gas-liquid composite bumper, which comprises a composite bumper outer cylinder 1, a composite bumper inner cylinder 2, a buffer guide rod 3, a guide plate 7, a guide block 9, a guide seat 10, a guide telescopic spring 11, a guide sleeve 12, a guide column 13, a buffer piston 18, a gas-liquid groove 20, an oil seal 16 and a throttle hole 17.

Claims

1. An air-liquid composite damper for preventing misalignment, characterized by: The utility model provides a composite buffer outer cylinder (1) for the main body of equipment buffer, The utility model discloses a composite buffer inner cylinder (2) is arranged inside composite buffer outer cylinder (1), is used to form the buffer with outer cylinder, and the inside movable joint of composite buffer inner cylinder (2) has buffer guide rod (3), the outside fixed mounting of buffer guide rod (3) has guide plate (7), the below movable joint of guide plate (7) has guide damping spring (8), the outside fixed connection of buffer guide rod (3) has guide block (9), Guide seat (10) is arranged at the bottom of guide block (9) and is used for movable joint guide telescopic spring (11), and the bottom of composite buffer inner cylinder (2) is fixedly installed with guide sleeve (12), the inside movable sleeve of guide sleeve (12) has guide column (13), the top of guide column (13) is fixedly installed with damping telescopic spring (14), The utility model discloses an upper oil seal (15) is arranged inside composite buffer inner cylinder (2) and is used for improving the leakproofness, and the below fixed mounting of upper oil seal (15) has lower oil seal (16), the surface of lower oil seal (16) is all seted up with throttle hole (17), and the bottom fixed mounting of buffer guide rod (3) has buffer piston (18). The bottom of composite buffer outer cylinder (1) is fixedly installed with bottom mounting plate (4), and the inside all -around of bottom mounting plate (4) is penetrated with the positioning bolt (5), and the top fixed mounting of buffer guide rod (3) has upper connecting sleeve (6).

2. The gas-liquid composite damper according to claim 1, wherein: The guide block (9) is slidably connected with the composite buffer outer cylinder (1), and the guide block (9) is fixedly connected with the guide seat (10).

3. The gas-liquid composite damper according to claim 1, wherein: The guide sleeve (12) is slidably connected with the guide column (13), and the guide column (13) is equidistantly distributed inside the composite buffer outer cylinder (1).

4. The gas-liquid composite damper according to claim 1, wherein: The number of throttle holes (17) is multiple, and the multiple throttle holes (17) are annularly arranged on the lower oil seal (16).

5. The gas-liquid composite damper according to claim 1, wherein: The lower movable joint of buffer piston (18) has inner buffer damping spring (19), and the inside of composite buffer inner cylinder (2) is provided with inner gas-liquid groove (20).

6. The gas-liquid composite damper according to claim 1, wherein: ​

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