High-stability large-torque rotatable oil cylinder

Abstract

The utility model belongs to the technical field of large-torque rotatable oil cylinders, and particularly relates to a high-stability large-torque rotatable oil cylinder which comprises a base, a first cylinder barrel and a second cylinder barrel are sequentially installed on the outer side wall of the base from top to bottom in a penetrating mode, and moving shafts are installed in the first cylinder barrel and the second cylinder barrel. Pistons are mounted at the left and right ends of the moving shafts, limiting blocks are mounted on the sides, away from the moving shafts, of the pistons, cushions are mounted at the left and right ends of the inner side walls of the first cylinder barrel and the second cylinder barrel, and guide rails mounted on the inner side walls of the first cylinder barrel and the second cylinder barrel are slidably connected to the sides, away from each other, of the two moving shafts; an oil cavity located above the first cylinder barrel is formed in the base, and two oil outlet channels distributed left and right are formed between the inner bottom end face of the oil cavity and the outer side wall of the first cylinder barrel in a penetrating mode. Lubricating oil can be automatically added into internal parts, all the parts do not need to be disassembled, operation is convenient, and working efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of large torque rotatable oil cylinders, and particularly relates to a large torque rotatable oil cylinder with high stability. Background Technique

[0002] A hydraulic rotary oil cylinder is a tightly assembled fitting that uses hydraulics to gather very high torque in a very small space. Despite its high power, it can still be precisely and easily controlled. Rotary oil cylinders have been successfully applied to almost all fields that require limited rotational motion and large torque.

[0003] Currently, there has emerged a large torque cylinder barrel of a gear-rack drive type hydraulic cylinder. After retrieval, the patent with the publication number CN214578012U discloses a high-stability gear-rack rotary oil cylinder. When in use, the meshing between the gear and the rack and the sliding between the rack and the copper support will generate a large frictional resistance, which will cause the equipment to heat up, thereby affecting the use performance of the equipment.

[0004] During the use of the above device, lubricating oil needs to be added between the gear and the rack inside the oil cylinder. It is necessary to disassemble the cylinder barrel and then lubricate each component, which is rather troublesome and inconvenient to use. Summary of the Invention

[0005] The purpose of the utility model is to provide a large torque rotatable oil cylinder with high stability, which can automatically add lubricating oil to internal components without disassembling each component, is convenient to operate, and improves work efficiency.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A large torque rotatable oil cylinder with high stability, including a base, the outer side wall of the base is sequentially penetrated and installed with a first cylinder barrel and a second cylinder barrel from top to bottom, moving shafts are installed inside both the first cylinder barrel and the second cylinder barrel, pistons are installed at both the left and right ends of the moving shafts, limiting blocks are installed on the sides of the pistons away from the moving shafts, buffer pads are installed at both the left and right ends of the inner side walls of the first cylinder barrel and the second cylinder barrel, and guide rails respectively installed on the inner side walls of the first cylinder barrel and the second cylinder barrel are slidably connected to the relatively far sides of the two moving shafts;

[0007] An oil cavity located above the first cylinder barrel is arranged inside the base, two oil outlet channels distributed left and right are penetrated and opened between the inner bottom end surface of the oil cavity and the outer side wall of the first cylinder barrel, one end of each oil outlet channel is communicated with an oil outlet nozzle penetrating the outer side wall of the guide rail, and a ball is slidably connected to the inner side wall of the oil outlet nozzle.

[0008] To facilitate the addition of lubricating oil into the oil cavity, as an optimization of the high-stability large-torque rotatable oil cylinder of the present utility model, an oil injection hole is penetratingly opened on the top end surface inside the oil cavity, and a sealing cover is installed inside the oil injection hole.

[0009] To facilitate the installation of the gear, as an optimization of the high-stability large-torque rotatable oil cylinder of the present utility model, a through hole is penetratingly opened on the front end surface of the base, a gear is installed inside the through hole, ports communicating with the through hole are penetratingly opened on both opposite sides of the first cylinder barrel and the second cylinder barrel, and a gear shaft is installed inside the gear.

[0010] To enable the rack to drive the gear to rotate, as an optimization of the high-stability large-torque rotatable oil cylinder of the present utility model, a rack meshed with the gear is installed on the side of the moving shaft away from the guide rail.

[0011] To facilitate the rolling of the ball in the oil outlet nozzle, as an optimization of the high-stability large-torque rotatable oil cylinder of the present utility model, the oil outlet nozzle is spherical.

[0012] To play a buffering role for the piston, as an optimization of the high-stability large-torque rotatable oil cylinder of the present utility model, the buffer pad is annular, and the limit block has elasticity.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] When the present utility model is in use, by supplying oil and pumping oil to one end of the first cylinder barrel and the second cylinder barrel, the piston slides under the action of oil pressure, pushing the moving shaft to drive the two racks to move relatively along the guide rail, thereby driving the gear and the gear shaft to rotate. During the use process, when adding lubricating oil to the moving shaft, the gear and the rack, lubricating oil is added into the oil cavity through the oil injection hole. The lubricating oil can flow into the oil outlet nozzle along the oil outlet channel. When the moving shaft in the first cylinder barrel is moving, the ball can roll along the moving shaft, and the lubricating oil can fall onto the moving shaft along the ball, lubricating between the guide rail and the moving shaft. And during the multiple movements of the moving shaft, the lubricating oil falling onto the moving shaft gradually falls onto the rack and the gear, and then falls onto the moving shaft and the guide rail in the second cylinder barrel, thus realizing the automatic addition of lubricating oil to the internal components without disassembling each component, which is convenient to operate and improves the work efficiency. Description of the Drawings

[0015] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0016] Figure 1 is a front view sectional structure schematic diagram of the present utility model;

[0017] Figure 2 for the present utility model Figure 1 is an enlarged structure schematic diagram at position A;

[0018] Figure 3 is a three-dimensional structure schematic diagram of the base of the present utility model.

[0019] In the figure: 1, base; 101, through hole; 2, first cylinder; 201, moving shaft; 202, piston; 203, limit block; 204, buffer pad; 3, second cylinder; 301, rack; 302, guide rail; 4, port; 5, gear; 501, gear shaft; 6, oil cavity; 601, oil injection hole; 602, sealing cover; 7, oil outlet channel; 701, oil outlet nozzle; 702, ball. Specific embodiments

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present utility model more clear and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0021] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0022] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0023] Please refer to Figures 1 to 3, A high-stability large-torque rotatable oil cylinder, comprising a base 1. The outer side wall of the base 1 is successively penetrated and installed with a first cylinder barrel 2 and a second cylinder barrel 3 from top to bottom. Moving shafts 201 are installed inside both the first cylinder barrel 2 and the second cylinder barrel 3. Pistons 202 are installed at both the left and right ends of the moving shaft 201. A limiting block 203 is installed on the side of the piston 202 away from the moving shaft 201. Buffer pads 204 are installed at both the left and right ends of the inner side walls of the first cylinder barrel 2 and the second cylinder barrel 3. Guide rails 302 respectively installed on the inner side walls of the first cylinder barrel 2 and the second cylinder barrel 3 are slidably connected to the relatively far sides of the two moving shafts 201;

[0024] An oil cavity 6 is arranged inside the base 1 above the first cylinder barrel 2. Two oil outlet channels 7 distributed left and right are penetrated and opened between the inner bottom end surface of the oil cavity 6 and the outer side wall of the first cylinder barrel 2. One end of the oil outlet channel 7 communicates with an oil outlet nozzle 701 penetrating the outer side wall of the guide rail 302. A ball 702 is slidably connected to the inner side wall of the oil outlet nozzle 701.

[0025] In this embodiment: During use, by supplying oil to and pumping oil from one end of the first cylinder barrel 2 and the second cylinder barrel 3, the piston 202 slides under the action of oil pressure, pushing the moving shaft 201 to drive the two racks 301 to move relatively along the guide rail 302, thereby driving the gear 5 and the gear shaft 501 to rotate. During the use process, when adding lubricating oil to the moving shaft 201, the gear 5 and the rack 301, lubricating oil is added into the oil cavity 6 through the oil injection hole 601. The lubricating oil can flow into the oil outlet nozzle 701 along the oil outlet channel 7. When the moving shaft 201 in the first cylinder barrel 2 moves, the ball 702 can roll along the moving shaft 201, and the lubricating oil can fall onto the moving shaft 201 along the ball 702 to lubricate between the guide rail 302 and the moving shaft 201. Moreover, during the process of the moving shaft 201 moving multiple times, the lubricating oil falling onto the moving shaft 201 gradually falls onto the rack 301 and the gear 5, and then falls onto the moving shaft 201 and the guide rail 302 in the second cylinder barrel 3, thus realizing automatic addition of lubricating oil to the internal components without disassembling each component, with convenient operation and improved work efficiency.

[0026] As a technical optimization scheme of the present utility model, an oil injection hole 601 is penetrated and opened on the top end surface inside the oil cavity 6, and a sealing cover 602 is installed inside the oil injection hole 601.

[0027] In this embodiment: By providing the oil injection hole 601, it is convenient to add lubricating oil into the oil cavity 6; the oil injection hole 601 can be sealed by the sealing cover 602.

[0028] As a technical optimization solution of the present utility model, a through hole 101 is penetrated and opened on the front end surface of the base 1. A gear 5 is installed inside the through hole 101. Ports 4 communicating with the through hole 101 are penetrated and opened on one side of the first cylinder 2 and the second cylinder 3 opposite to each other. A gear shaft 501 is installed inside the gear 5.

[0029] In this embodiment: By providing the port 4, it is convenient to install the sub-gear 5.

[0030] As a technical optimization solution of the present utility model, a rack 301 meshingly connected with the gear 5 is installed on one side of the moving shaft 201 away from the guide rail 302.

[0031] In this embodiment: When one of the moving shafts 201 moves, it can drive the rack 301 thereon to move, thereby driving the gear 5 to rotate, and further driving the other rack 301 and the moving shaft 201 to move.

[0032] As a technical optimization solution of the present utility model, the oil outlet nozzle 701 is spherical.

[0033] In this embodiment: The spherical oil outlet nozzle 701 facilitates the rolling of the ball 702 inside the oil outlet nozzle 701.

[0034] As a technical optimization solution of the present utility model, the buffer pad 204 is annular, and the limiting block 203 has elasticity.

[0035] In this embodiment: By providing the buffer pad 204 and the limiting block 203, during the movement of the moving shaft 201, the limiting block 203 contacts the buffer pad 204, thereby playing a buffering role on the moving shaft 201.

[0036] Working principle: When in use, first connect the first cylinder 2 and the second cylinder 3 to an external oil supply pipeline. By supplying and pumping oil at one end of the first cylinder 2 and the second cylinder 3, the piston 202 slides under the action of oil pressure, pushing the moving shaft 201 to move along the guide rail 302, thereby driving the relative movement of the two racks 301, and then driving the gear 5 to rotate, and further driving the gear shaft 501 to rotate. Moreover, during the movement of the piston 202, the limit block 203 can be driven to move, so as to contact the buffer pad 204, which can play a buffering role for the piston 202; during the use process, when adding lubricating oil to the moving shaft 201, the gear 5 and the rack 301, first open the sealing cover 602, and add lubricating oil into the oil cavity 6 through the oil injection hole 601. The lubricating oil can flow into the oil outlet nozzle 701 along the oil outlet channel 7. During the movement of the moving shaft 201 in the first cylinder 2, the balls 702 can roll along the moving shaft 201, and the lubricating oil can fall onto the moving shaft 201 along the balls 702 to lubricate between the guide rail 302 and the moving shaft 201. And during the multiple movements of the moving shaft 201, the lubricating oil falling onto the moving shaft 201 gradually falls onto the rack 301 and the gear 5, and then falls onto the moving shaft 201 and the guide rail 302 in the second cylinder 3, thus realizing the automatic addition of lubricating oil to the internal components.

[0037] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-stability, high-torque rotatable oil cylinder, comprising a base (1), wherein the outer wall of the base (1) is penetrated by a first cylinder barrel (2) and a second cylinder barrel (3) in sequence from top to bottom, wherein a movable shaft (201) is installed inside the first cylinder barrel (2) and the second cylinder barrel (3), and pistons (202) are installed at both left and right ends of the movable shaft (201), characterized in that: A limit block (203) is installed on the side of the piston (202) away from the movable shaft (201); buffer pads (204) are installed on both the left and right ends of the inner side walls of the first cylinder barrel (2) and the second cylinder barrel (3); and guide rails (302) respectively installed on the inner side walls of the first cylinder barrel (2) and the second cylinder barrel (3) are slidably connected to the sides of the two movable shafts (201) that are relatively away from each other; The base (1) is provided with an oil chamber (6) located above the first cylinder (2), and two oil outlet channels (7) are provided between the inner bottom end surface of the oil chamber (6) and the outer wall of the first cylinder (2) and are distributed on the left and right. One end of the oil outlet channel (7) is connected to an oil outlet nozzle (701) that passes through the outer wall of the guide rail (302), and the inner wall of the oil outlet nozzle (701) is slidably connected to a ball (702).

2. A high-stability, high-torque rotatable oil cylinder according to claim 1, characterized in that: An oil filling hole (601) is formed through the top end surface of the oil chamber (6), and a sealing cover (602) is installed inside the oil filling hole (601).

3. A high-stability, high-torque rotatable oil cylinder according to claim 1, characterized in that: A through hole (101) is formed through the front end surface of the base (1), a gear (5) is installed inside the through hole (101), ports (4) communicating with the through hole (101) are formed through the opposite sides of the first cylinder (2) and the second cylinder (3), and a gear shaft (501) is installed inside the gear (5).

4. A high-stability, high-torque rotatable oil cylinder according to claim 3, characterized in that: A rack (301) meshingly connected with the gear (5) is installed on the side of the movable shaft (201) away from the guide rail (302).

5. The high-stability, high-torque rotatable oil cylinder according to claim 1, characterized in that: The oil outlet nozzle (701) is spherical.

6. A high-stability, high-torque rotatable oil cylinder according to claim 1, characterized in that: The buffer pad (204) is ring-shaped, and the limiting block (203) is elastic.

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