Pull rod oil cylinder type combined buffer tank

Abstract

The utility model relates to the technical field of buffering devices, in particular to a pull rod oil cylinder type combined buffering tank which comprises an oil cylinder body, a transmission joint fork assembly is installed at one end of the oil cylinder body through a pin shaft, a shaft sleeve assembly is arranged on the inner side of the transmission joint fork assembly and comprises a shaft sleeve body, and a hollow hose is fixedly installed on the inner side of the shaft sleeve body. One end of the hollow hose is fixedly connected with a communicating unit, the inner side of the shaft sleeve body is fixedly connected with an oil conveying pipe, the communicating unit comprises a communicating pipe, the outer side of the communicating pipe is provided with a through hole, one end of the communicating pipe is fixedly connected with an extrusion hose, the inner side of the extrusion hose is provided with honeycomb holes, and the outer side of the communicating pipe is fixedly connected with a short pipe. By arranging the transmission joint fork assembly and the shaft sleeve assembly, a lubricating system is constructed for the device, accurate conveying of lubricating oil is ensured, friction and abrasion between parts are reduced, and the problem that the matching precision of a pull rod and an oil cylinder is reduced due to abrasion deformation of a steering joint fork is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to buffer device technical field, concretely is a pull rod oil cylinder formula combined buffer tank. BACKGROUND

[0002] The pull rod oil cylinder formula combined buffer tank combines the functional characteristics of the pull rod oil cylinder and the buffer tank, is an industrial device integrating the functions of buffering, energy storage and pressure regulation, is mainly used for absorbing impact, reducing pressure fluctuation and protecting equipment from instantaneous high pressure or vibration damage in a hydraulic system or a fluid conveying system, the core design combines mechanical structure and hydraulic buffering technology, and has the characteristics of high efficiency, high reliability and flexible adaptation.

[0003] In the pull rod oil cylinder formula combined buffer tank, the pull rod for connection is usually integrated with a knuckle fork design, the knuckle fork can adapt to complex installation environments and various motion requirements due to its multi-degree-of-freedom motion characteristics, and can effectively absorb the instantaneous linear displacement or angular swing of the equipment, thereby reducing the potential interference of rigid transmission on the motion trajectory of the piston in the buffer tank and ensuring that the device can still achieve efficient buffering effect and stable operation under complex working conditions.

[0004] However, although the knuckle fork can automatically adjust the relative angle between the pull rod, the oil cylinder and the buffer tank, additional stress caused by poor mechanical centering can be avoided, but long-term use will cause the knuckle fork to wear and deform, and thus the multi-degree-of-freedom motion range will be out of control, which will reduce the matching precision of the pull rod and the oil cylinder, cause the hydraulic oil in the oil cylinder to flow turbulently during the hydraulic impact absorption process, thereby weakening the damping effect and reducing the buffering effect, therefore, the pull rod oil cylinder formula combined buffer tank is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a pull rod oil cylinder formula combined buffer tank to solve the problem that long-term use will cause the knuckle fork to wear and deform, and thus the multi-degree-of-freedom motion range will be out of control, which will reduce the matching precision of the pull rod and the oil cylinder, cause the hydraulic oil in the oil cylinder to flow turbulently during the hydraulic impact absorption process, thereby weakening the damping effect and reducing the buffering efficiency.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A lever-type hydraulic cylinder combined buffer tank includes a cylinder body. A transmission fork assembly is mounted on one end of the cylinder body via a pin. A bushing assembly is provided inside the transmission fork assembly. The bushing assembly includes a bushing body. A hollow hose is fixedly installed inside the bushing body. A connecting unit is fixedly connected to one end of the hollow hose. An oil delivery pipe is fixedly connected to the inside of the bushing body. The connecting unit includes a connecting pipe. A through hole is opened on the outside of the connecting pipe. A compression hose is fixedly connected to one end of the connecting pipe. A honeycomb hole is provided inside the compression hose. A short pipe is fixedly connected to the outside of the connecting pipe.

[0008] As a further optimization of this utility model, the transmission fork assembly includes a connecting fork, an oil injection groove, an installation groove, an oil passage groove, and two connecting shaft holes on the same axis.

[0009] As a further optimization of this utility model, the oil injection groove is provided with a threaded hole at the opening on the outer surface of the connecting fork, the cross-sectional shape of the mounting groove is elliptical, the oil injection groove and the mounting groove are interconnected, and the oil passage groove and the connecting shaft hole are interconnected.

[0010] As a further optimization of this utility model, the outer side of the bushing body is in close contact with the inner side of the mounting groove, two sets of hollow hoses are provided, the two sets of hollow hoses are symmetrically distributed vertically, the position of the hollow hose corresponds one-to-one with the position of the oil passage groove, and the outer side of the hollow hose is in close contact with the inner side of the oil passage groove.

[0011] As a further optimization of this utility model, the following features are provided: a plurality of through holes are provided, and the plurality of through holes are distributed in a ring at equal intervals on the outside of the connecting pipe; the extrusion hose is interconnected with the through holes; and the short pipe is connected to the connecting pipe through the through holes.

[0012] As a further optimization of this utility model, the connecting pipe is completely enclosed within the bushing body, a portion of the extruded hose is exposed outside the bushing body, and the hollow hose is completely enclosed within the bushing body.

[0013] As a further optimization of this utility model, the oil delivery pipe is completely enclosed within the bushing body, the oil delivery pipe is positioned between two hollow flexible tubes, the oil delivery pipe is interconnected with the oil injection tank, and the oil delivery pipe is fixedly connected to a connecting pipe.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this invention, a lubrication system is constructed for the device by setting the transmission knuckle fork assembly and bushing assembly, which ensures the accurate delivery of lubricating oil, reduces friction and wear between components, solves the problem of reduced matching accuracy between the tie rod and the oil cylinder caused by wear and deformation of the steering knuckle fork, and ensures the buffering effect and operational stability of the device under long-term use or complex working conditions. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the installation position structure of the bushing assembly of this utility model;

[0018] Figure 3 This is a cross-sectional view of the transmission joint fork assembly of this utility model;

[0019] Figure 4 This is a schematic diagram of the bushing assembly structure of this utility model;

[0020] Figure 5 This is a sectional view of the bushing assembly of this utility model;

[0021] Figure 6 for Figure 5 Enlarged structural diagram at point A in the middle;

[0022] Figure 7 This is a schematic diagram of the hollow flexible tube structure of this utility model;

[0023] Figure 8 for Figure 7 Enlarged structural diagram at point B.

[0024] In the diagram: 1. Cylinder body; 2. Transmission fork assembly; 21. Connecting fork; 22. Oil filling groove; 23. Mounting groove; 24. Oil passage groove; 25. Connecting shaft hole; 3. Bushing assembly; 31. Bushing body; 32. Hollow hose; 33. Connecting unit; 331. Connecting pipe; 332. Through hole; 333. Extruded hose; 334. Honeycomb hole; 335. Short pipe; 34. Oil supply pipe. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0027] Please see Figures 1-8 This utility model provides a technical solution:

[0028] A lever-type hydraulic cylinder combined buffer tank includes a cylinder body 1. A transmission fork assembly 2 is mounted on one end of the cylinder body 1 via a pin. A bushing assembly 3 is provided inside the transmission fork assembly 2. The bushing assembly 3 includes a bushing body 31. A hollow hose 32 is fixedly installed inside the bushing body 31. A connecting unit 33 is fixedly connected to one end of the hollow hose 32. An oil supply pipe 34 is fixedly connected to the inside of the bushing body 31. The connecting unit 33 includes a connecting pipe 331. A through hole 332 is opened on the outside of the connecting pipe 331. A compression hose 333 is fixedly connected to one end of the connecting pipe 331. A honeycomb hole 334 is provided inside the compression hose 333. A short pipe 335 is fixedly connected to the outside of the connecting pipe 331.

[0029] As a further implementation of this solution, the transmission fork assembly 2 includes a connecting fork 21. The connecting fork 21 has an oil inlet groove 22, an mounting groove 23, and an oil passage groove 24. The connecting fork 21 also has two connecting shaft holes 25 on the same axis. The oil inlet groove 22 has a threaded hole at its opening on the outer surface of the connecting fork 21. The mounting groove 23 has an elliptical cross-sectional shape. The oil inlet groove 22 and the mounting groove 23 are interconnected, as are the oil passage groove 24 and the connecting shaft holes 25. The threaded hole in the oil inlet groove 22 allows for precise control and injection of lubricating oil via threaded connection, such as using a nozzle or oil can. The mounting groove 23 allows for better cooperation with other components, ensuring they can be securely and accurately installed on the connecting fork 21.

[0030] As a further implementation of this solution, the outer side of the bushing body 31 is in close contact with the inner side of the mounting groove 23. Two sets of hollow hoses 32 are provided, and the two sets of hollow hoses 32 are symmetrically distributed vertically. The position of the hollow hoses 32 corresponds one-to-one with the position of the oil passage groove 24. The outer side of the hollow hoses 32 is in close contact with the inner side of the oil passage groove 24. The setting of the hollow hoses 32 can enable the lubricating oil to be accurately delivered to the parts that need lubrication, thereby improving the lubrication effect.

[0031] As a further implementation of this solution, several through holes 332 are provided, and multiple through holes 332 are distributed in a ring at equal intervals on the outside of the connecting pipe 331. The extrusion hose 333 is interconnected with the through holes 332. The short pipe 335 is connected to the connecting pipe 331 through the through holes 332. The connecting pipe 331 is completely wrapped inside the bushing body 31. Part of the extrusion hose 333 is exposed outside the bushing body 31. The hollow hose 32 is completely wrapped inside the bushing body 31. The exposed section of the extrusion hose 333 can be deformed under pressure, thereby regulating the pressure of the internal fluid and increasing the flow rate. The extrusion hose 333 can quickly recover its deformation through the honeycomb holes 334 provided inside. Moreover, the setting of the honeycomb holes 334 ensures that even if the extrusion hose 333 is partially damaged, it still has a certain ability to deliver lubricating oil.

[0032] As a further implementation of this solution, the oil supply pipe 34 is completely enclosed within the bushing body 31. The oil supply pipe 34 is positioned between the upper and lower hollow hoses 32, and is interconnected with the oil filling groove 22. The oil supply pipe 34 is fixedly connected to the connecting pipe 331, which ensures that the oil supply pipe 34 is protected from external environmental interference and physical damage, while also helping to achieve uniform distribution and transmission of lubricating oil.

[0033] Workflow: When installing and using this lever-type hydraulic cylinder combined buffer tank, first check the surface of the device for impurities or damage. After confirming that everything is in order, connect the transmission fork assembly 2 to the lever in the cylinder body 1 using a pin. Then, connect the transmission fork assembly 2 to other equipment components to complete the connection of the entire device. Next, inject lubricating oil into the oil filling tank 22, allowing the lubricating oil to enter the connecting pipe 331 through the oil filling tank 22 and the hollow hose 32. Part of the lubricating oil in the connecting pipe 331 flows to the bushing through the short pipe 335. A portion of the lubricant flows into the compression hose 333 through the inner wall of body 31. When the device is subjected to pressure impact, the force on the device will be transmitted to the pull rod through the transmission fork assembly 2. When the transmission fork assembly 2 is under force, the bushing assembly 3 set in the transmission fork assembly 2 will also be squeezed. At this time, the compression hose 333 is squeezed, which will transport the lubricating oil inside it through the hollow hose 32 to the inner wall of the connecting shaft hole 25, so that the transmission fork assembly 2 and the bushing assembly 3 can complete the lubrication of each part at the same time, reducing the wear of the parts caused by friction.

[0034] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pull rod cylinder combined buffer tank comprising a cylinder main body (1), characterized in that: Including the oil cylinder main part (1), the oil cylinder main part (1) one end is equipped with the transmission yoke assembly (2) through the pin shaft, the transmission yoke assembly (2) inside is provided with the shaft sleeve assembly (3), the shaft sleeve assembly (3) includes the shaft sleeve body (31), the shaft sleeve body (31) inside fixedly installed with the hollow hose (32), the hollow hose (32) one end is fixedly connected with the communication unit (33), the shaft sleeve body (31) inside fixedly connected with the oil pipe (34), the communication unit (33) includes the communication pipe (331), the communication pipe (331) outside is provided with the through -hole (332), the communication pipe (331) one end is fixedly connected with the extrusion hose (333), the extrusion hose (333) inside is provided with the honeycomb hole (334), the communication pipe (331) outside fixedly connected with the short pipe (335).

2. A skid and pull rod cylinder combination surge tank according to claim 1, wherein: The transmission yoke assembly (2) includes the connecting yoke (21), the connecting yoke (21) inside is provided with the oil injection groove (22), the connecting yoke (21) inside is provided with the installation groove (23), the connecting yoke (21) inside is provided with the oil channel groove (24), the connecting yoke (21) inside is provided with two connecting shaft holes (25) in the same axis.

3. A skid and pull rod cylinder combination surge tank according to claim 2, wherein: The oil injection groove (22) is provided with a threaded hole at the opening of the outer surface of the connecting yoke (21), the cross-sectional shape of the installation groove (23) is oval, the oil injection groove (22) and the installation groove (23) are communicated with each other, and the oil channel groove (24) and the connecting shaft hole (25) are communicated with each other.

4. The combined buffer tank of claim 1, wherein: The shaft sleeve body (31) is tightly attached to the inside of the installation groove (23), the hollow hose (32) is provided with two groups, and the two groups of hollow hoses (32) are symmetrically distributed above and below, the positions of the hollow hoses (32) correspond to the positions of the oil channel grooves (24) one by one, and the hollow hoses (32) are tightly attached to the inside of the oil channel grooves (24).

5. The combined buffer tank of claim 1, wherein: The through -hole (332) is provided with a plurality of, a plurality of the through -hole (332) is annular equidistant distribution in the outside of the communication pipe (331), the extrusion hose (333) and the through -hole (332) are communicated with each other, and the short pipe (335) is communicated with the communication pipe (331) through the through -hole (332).

6. A skid and pull rod cylinder combination surge tank as defined in claim 1 wherein: The communication pipe (331) is completely wrapped in the shaft sleeve body (31), and the extrusion hose (333) is partially exposed outside the shaft sleeve body (31). The hollow hose (32) is completely wrapped in the shaft sleeve body (31).

7. The combined surge tank of claim 1, wherein: The oil pipe (34) is completely wrapped in the shaft sleeve body (31), the oil pipe (34) is arranged between the upper and lower hollow hoses (32), the oil pipe (34) and the oil injection groove (22) are communicated with each other, and the oil pipe (34) is fixedly connected with the communication pipe (331).

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