Nitrogen rigid supporting structure for hydraulic buffer device

Abstract

The utility model provides a nitrogen rigid supporting structure for a hydraulic buffer device, which comprises a bearing assembly component, a hydraulic buffer component, a gas supporting component, a sealing component and an air pressure monitoring component. When the supporting assembly component is subjected to impact force, the hydraulic buffering component and the gas supporting component work cooperatively, the impact force can be effectively absorbed, compared with a single spring buffering device, the buffering device is more stable, meanwhile, the bearing capacity is larger, the sealing component is further arranged, and the sealing effect is better. The air cylinder body and the oil cylinder body are sealed through the pair of sealing rings, when one sealing ring fails, the other sealing ring can complete sealing work, the sealing performance of the buffering device is greatly improved, oil liquid is effectively prevented from flowing into the inner telescopic cylinder sleeve, potential safety hazards are avoided, meanwhile, the maintenance frequency of the buffering device is reduced, and the service life of the buffering device is prolonged. And the service life of the buffer device is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane buffer device technical field especially relates to a nitrogen rigid support structure for hydraulic buffer device. BACKGROUND

[0002] Patent document CN221116753U a kind of buffer device of European style crane trolley, including buffer assembly and corresponding with buffer assembly stop component;Buffer assembly has support plate, installation plate is provided on the top of support plate, one side of support plate close to stop component is fixedly provided with inner tube body, outer tube body is slidably sleeved with the outer side of the end of inner tube body away from support plate, end plate is fixedly provided with the end of outer tube body away from inner tube body, spring is sleeved with the outer side of inner tube body and outer tube body, buffer pad is fixedly provided with the side of end plate away from outer tube body, the inner side of inner tube body is provided with proximity switch, the inner side of end plate is provided with trigger lever corresponding with proximity switch;Stop component has baffle corresponding with buffer pad;The utility model can be discovered in time when spring elastic force drops to lower limit value, reminds relevant personnel maintenance, guarantees buffering performance, reduces artificial maintenance expenditure cost.

[0003] The buffer device uses spring to buffer, but spring buffering has strong counterforce, and is not suitable for mechanism with high speed. Therefore, it is necessary to improve such a structure to overcome the above-mentioned defects. SUMMARY

[0004] The utility model aims at providing a kind of nitrogen rigid support structure for hydraulic buffer device, to solve the problems raised in the above background.

[0005] The utility model as adopting the technical scheme for solving its technical problem is:

[0006] A kind of nitrogen rigid support structure for hydraulic buffer device, comprising:

[0007] Support assembly component, assembly space is provided in the support assembly component;

[0008] Hydraulic buffer component, the hydraulic buffer component is set in support assembly component, and support assembly component is supported by the hydraulic buffer component;

[0009] Gas support component, the gas support component is set in support assembly component, and hydraulic buffer component is assisted by the gas support component Support;

[0010] Sealing member, the sealing member is set in hydraulic buffer component and gas support component, and the sealing member is sealed to hydraulic buffer component.

[0011] The utility model is further provided as, support assembly component includes:

[0012] The outer telescopic cylinder is circular in shape, and a clamping groove and a limiting seat are arranged in the outer telescopic cylinder.

[0013] The inner telescopic cylinder is arranged in the clamping groove of the outer telescopic cylinder, and a limiting groove, a limiting plate and a connecting seat are arranged in the inner telescopic cylinder.

[0014] The hydraulic buffer component further comprises:

[0015] The hydraulic oil cylinder is arranged in the outer telescopic cylinder, and is arranged in the limiting seat.

[0016] The piston rod is arranged in the assembly groove of the hydraulic oil cylinder, and the other end surface of the piston rod is provided with a connecting space.

[0017] The piston head is sleeved on the piston rod.

[0018] The baffle is arranged on one side of the piston head.

[0019] The gas supporting component further comprises:

[0020] The cylinder body is arranged in the connecting seat of the inner telescopic cylinder, and is provided with an installation space and a nitrogen cavity.

[0021] The sealing end cover is arranged in the cylinder body, and is provided with a gas injection port.

[0022] The sealing component further comprises:

[0023] The sealing ring is arranged in the sealing ring groove of the cylinder body, and seals the oil.

[0024] The axis of the limiting seat coincides with the axis of the outer telescopic cylinder.

[0025] The gas pressure monitoring component further comprises:

[0026] The small pressure measuring device is arranged in the sealing end cover and is located below the gas injection port.

[0027] The utility model discloses a kind of nitrogen gas rigid support structures for hydraulic buffer device.

[0028] 1. The utility model discloses a bearing assembly component is supported to setting hydraulic buffer component and gas support component, when bearing assembly component is impacted, hydraulic buffer component and gas support component work in coordination, can effectively absorb impact kinetic energy, compared with single spring buffer device, this buffer device is more stable, and simultaneously bearing capacity is greater.

[0029] 2. The utility model discloses setting sealing component, one pair of sealing ring is set to seal at the place of cylinder barrel and oil cylinder barrel, when one of sealing ring fails, another sealing ring can also complete sealing work, greatly increase the sealing property of the buffer device, effectively prevent oil from flowing into inner telescopic cylinder sleeve, cause security risk, simultaneously reduce the maintenance frequency to buffer device, increase the service life of the buffer device.

[0030] 3. The utility model discloses setting connecting seat and limit seat to limit and support cylinder barrel and hydraulic oil cylinder, effectively guarantee the assembly precision and the positional accuracy of cylinder barrel and hydraulic oil cylinder, so that the cylinder barrel can more evenly absorb impact force, increase the service life of the buffer device.

[0031] 4. The utility model discloses setting small pressure measuring device, guarantee the pressure generated in cylinder by gas at constant value, release gas after gas is heated and expands, so as to guarantee that gas is at safe air pressure in air cavity, and can be supplemented in time after discovering that air pressure is insufficient, guarantee that it can work normally. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is the structure diagram of nitrogen gas rigid support structure for hydraulic buffer device proposed in the utility model.

[0033] Numerical reference: outer telescopic cylinder sleeve 110, clamping recess 111, limit seat 112, inner telescopic cylinder sleeve 120, limit recess 121, limit plate 122, connecting seat 123, hydraulic oil cylinder 210, assembly recess 211, oil cavity 212, piston rod 220, piston head 230, baffle 240, cylinder barrel 310, nitrogen cavity 311, sealing ring groove 312, sealing end cover 320, gas injection port 321, sealing ring 410, small pressure measuring device 510 DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme of the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the claimed utility model, but only represents selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0035] As shown in Figure 1 The utility model provides a nitrogen rigid support structure for hydraulic buffer device, including support assembly component, hydraulic buffer component, gas support component, sealing component and air pressure monitoring component, is provided with assembly space in support assembly component, hydraulic buffer component is set in support assembly component, is supported to support assembly component by hydraulic buffer component, gas support component is set in support assembly component, is assisted to support hydraulic buffer component by gas support component, sealing component is set in hydraulic buffer component and gas support component, is sealed to hydraulic buffer component by sealing component.

[0036] In the embodiment, the support assembly component includes an outer telescopic cylinder sleeve 110 and an inner telescopic cylinder sleeve 120. The outer telescopic cylinder sleeve is circular in shape and is provided with a clamping groove 111 and a limiting seat 112. The inner telescopic cylinder sleeve is arranged in the clamping groove of the outer telescopic cylinder sleeve and is provided with a limiting groove 121 for limiting a limiting plate. The limiting plate 122 is arranged in the inner telescopic cylinder sleeve and abuts against the limiting groove. The connecting seat 123 is arranged in the inner telescopic cylinder sleeve and is provided with a connecting space for limiting the position of the cylinder body, thereby ensuring the accuracy of the position of the cylinder body and preventing it from deviating, and thus increasing the bearing capacity.

[0037] In the embodiment, the hydraulic buffer component includes a hydraulic oil cylinder 210, a piston rod 220, a piston head 230, and a baffle plate 240. The hydraulic oil cylinder is arranged in the outer telescopic cylinder sleeve and is arranged in the limiting seat. The hydraulic oil cylinder is provided with an assembly groove 211 and an oil cavity 212. The piston rod is arranged in the assembly groove of the hydraulic oil cylinder and is provided with a connecting space on the other end surface. The piston head is sleeved on the piston rod, and the baffle plate is arranged on one side of the piston head.

[0038] In the embodiment, the gas supporting member comprises a cylinder body 310 and a sealing end cover 320, the cylinder body is arranged in the connecting seat of the inner telescopic cylinder sleeve, the cylinder body is provided with a mounting space, the cylinder body is provided with a nitrogen cavity 311, the cylinder body is provided with a sealing ring groove 312, the sealing ring groove is provided with a containing space, the sealing end cover is arranged in the cylinder body, and the sealing end cover is provided with a gas injection port 321.

[0039] In the embodiment, the sealing member comprises a pair of sealing rings 410, the sealing rings are arranged in the sealing ring grooves of the cylinder body, the oil is sealed by the sealing rings, and the oil leakage from the connecting position of the cylinder body and the oil cylinder body is prevented, so that the safety hidden danger is caused.

[0040] In the embodiment, the axis of the limiting seat coincides with the axis of the outer telescopic cylinder sleeve, the oil cylinder body is limited by the limiting seat, the oil cylinder body is guaranteed to be in the central position, the deviation of the oil cylinder body is prevented, the buffering effect is affected, and the supporting effect is achieved, and the service life of the device is increased.

[0041] In the embodiment, the gas pressure monitoring member comprises a small pressure measuring device 510, the small pressure measuring device is arranged in the sealing end cover, the small pressure measuring device is located below the gas injection port, the pressure in the cylinder body is monitored by the small pressure measuring device, the small pressure measuring device is provided with a gas transmission space, the gas injection and exhaust work are not hindered, and the small pressure measuring device is prior art, which will not be described here.

[0042] The working principle of the utility model is:

[0043] When the inner telescopic cylinder sleeve is impacted and moves towards the outer telescopic sleeve, the inner telescopic sleeve drives the cylinder body to move, one side of the cylinder body abuts on the baffle, so that the baffle extrudes the oil in the hydraulic cavity, the baffle moves away from the piston head, a cavity is formed between the baffle and the piston head, the oil is extruded and flows into the cavity from the gap between the baffle and the cylinder body, and the oil is damped when passing through the gap, so that the impact kinetic energy is absorbed; when the cylinder body moves, the piston rod remains stationary and moves relatively with the cylinder body, the piston rod extrudes the nitrogen in the nitrogen cavity, and the reaction force is generated in the extrusion process, so that the impact kinetic energy from the inner telescopic cylinder sleeve is absorbed.

[0044] In the description of the utility model, it is necessary to explain that when the terms of indicating the orientation or position relationship such as "upper", "lower", "inner", "outer", "left", "right" and the like appear, it should be understood as the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship of the utility model product when it is usually placed, or the orientation or position relationship commonly understood by the person skilled in the art, and it is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the utility model. In addition, when the terms of "first", "second" and the like appear, they are only used for distinguishing the description, and cannot be understood as indicating or implying relative importance. In the description of the utility model, it is also necessary to explain that unless otherwise explicitly specified and limited, the terms of "mounting", "setting", "connecting" and the like should be understood in a broad sense, for example, "connecting" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the communication inside two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

Claims

1. A nitrogen rigid support structure for a hydraulic buffer device, characterized in that, include: A support assembly component, wherein an assembly space is provided in the support assembly component; A hydraulic buffer component is disposed in the support assembly component, and the support assembly component is supported by the hydraulic buffer component; A gas support component is provided in the support assembly component, and the gas support component provides auxiliary support for the hydraulic buffer component; A sealing member is provided in the hydraulic buffer member and the gas support member, and the sealing member seals the hydraulic buffer member; A pressure monitoring component, which is disposed in a gas support component.

2. The nitrogen rigid support structure for a hydraulic buffer device according to claim 1, characterized in that, Support assembly components include: An outer telescopic cylinder liner, which is circular in shape, is provided with a snap-fit ​​groove and a limiting seat. An inner telescopic cylinder sleeve is disposed in the snap-fit ​​groove of an outer telescopic cylinder sleeve. A limiting groove is provided in the inner telescopic cylinder sleeve. A limiting plate is provided in the inner telescopic cylinder sleeve, and the limiting plate abuts against the limiting groove. A connecting seat is provided in the inner telescopic cylinder sleeve, and a connecting space is provided in the connecting seat.

3. A nitrogen rigid support structure for a hydraulic buffer device according to claim 2, characterized in that, The hydraulic buffer components include: The hydraulic cylinder is installed in the outer telescopic cylinder sleeve and the hydraulic cylinder is installed in the limit seat. The hydraulic cylinder is provided with an assembly groove and an oil cavity. A piston rod is disposed in the mounting groove of the hydraulic cylinder, and a connecting space is provided on the other end surface of the piston rod; Piston head, which is fitted onto piston rod; A baffle is located on one side of the piston head.

4. A nitrogen rigid support structure for a hydraulic buffer device according to claim 2, characterized in that, Gas support components include: The cylinder body is located in the connecting seat of the inner telescopic cylinder sleeve. The cylinder body has an installation space and a nitrogen chamber. The surface of the cylinder body has a sealing ring groove with a receiving space. A sealing end cap is provided in the cylinder body, and an air injection port is provided in the sealing end cap.

5. A nitrogen rigid support structure for a hydraulic buffer device according to claim 4, characterized in that, The sealing components include: A pair of sealing rings are provided, which are set in the sealing ring groove of the cylinder body to seal the oil.

6. A nitrogen rigid support structure for a hydraulic buffer device according to claim 2, characterized in that, The axis of the limiting seat coincides with the axis of the outer telescopic cylinder liner.

7. A nitrogen rigid support structure for a hydraulic buffer device according to claim 4, characterized in that, The barometric pressure monitoring components include: A small pressure measuring device is installed in the sealed end cap and located below the air injection port. The small pressure measuring device monitors the pressure inside the cylinder.

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