Continuous extrusion efficient oil cylinder

Abstract

The utility model belongs to the technical field of hydraulic oil cylinders, and particularly relates to a continuous extrusion efficient oil cylinder which comprises a cylinder barrel, a transmission rod and an expansion connecting ring, the transmission rod is arranged on the side of the cylinder barrel, and the expansion connecting ring is arranged at the tail end of the transmission rod. According to the oil cylinder structure, the built-in bearing sleeve, the spiral tooth groove, the spiral rack, the tail end connecting rod and the piston head are arranged, and when the oil cylinder structure is used, the oil inlet hole and the oil outlet hole are respectively connected with an external oil pipe. When the transmission rod and the piston rod move in the cylinder barrel, a spiral rack on the outer side of the piston rod is connected with a spiral tooth groove on the inner side of the built-in bearing sleeve, the piston rod rotates under the support of the built-in bearing sleeve when doing linear motion, and the rotating effect is conducted to an expansion connecting ring at the other end of the cylinder barrel through a connecting rod at the tail end. Therefore, part of linear thrust is converted into rotating torque, the composite action of pushing / pulling and rotating is achieved, and an independent rotating motor and an independent transmission mechanism in a traditional scheme are omitted.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hydraulic oil cylinder, concretely to a continuous extrusion high -efficient oil cylinder. BACKGROUND

[0002] As the core component of modern industrial power transmission, the oil cylinder is born in the innovation demand of hydraulic technology, and is widely used in engineering machinery, automatic production line, aerospace and heavy equipment fields, and through the efficient conversion of fluid energy into mechanical linear or composite motion, the equipment execution precision and load capacity are greatly improved, its significance lies in breaking through the space limit and energy efficiency bottleneck of traditional mechanical transmission, and providing key technical support for high reliability and high dynamic response operation under complex working conditions, and becomes an important cornerstone to promote the upgrading of industrial automation and the development of intelligent manufacturing.

[0003] The prior art has the following disadvantages: in the prior art with the publication number CN218093734U, "a continuous extrusion high -efficient oil cylinder" includes an oil cylinder body, a stroke rod is slidably connected to the inner side of the oil cylinder body, a spacer plate is slidably connected to one end of the stroke rod and located on the inner side of the oil cylinder body, a first oil pipe is connected to one end of the stroke rod on the outer side of the oil cylinder body, a second oil pipe is connected to one end of the oil cylinder body away from the first oil pipe, a fixed heat dissipation pipe is installed on the outer side of the oil cylinder body, the first oil pipe and the second oil pipe are arranged on the outer side of the fixed heat dissipation pipe, a refrigeration mechanism is installed on the inner side of the fixed heat dissipation pipe, and the refrigeration mechanism is used for cooling the oil cylinder body and the second oil pipe.

[0004] The above structure cools the hydraulic oil, thereby reducing the failure of the oil cylinder, and indirectly cools the inner side of the oil cylinder. However, the above structure adopts traditional linear piston motion, which can only realize linear reciprocating motion, and additional rotary motor, gear set and other components are required to complete the composite action, resulting in increased system complexity and increased space occupation. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a continuous extrusion high -efficient oil cylinder, which solves the problem that additional complex accessories are required to perform composite action.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a continuous extrusion high -efficient oil cylinder, including cylinder, transmission rod, expansion connecting ring, the transmission rod is arranged in the side of the cylinder, and the expansion connecting ring is arranged at the end of the transmission rod.

[0007] The side end of the cylinder is provided with an embedded bearing sleeve, and the inner side of the embedded bearing sleeve is provided with a piston rod.

[0008] The built-in bearing sleeve further comprises a helical tooth groove and a sealing cylinder cover, the helical tooth groove is arranged on the inner wall end face of the built-in bearing sleeve, and the sealing cylinder cover is sleeved on the outer periphery of the built-in bearing sleeve.

[0009] As a preferred technical scheme of the utility model, the built-in bearing sleeve is internally provided with a bearing structure, a tubular structure extends from the rear end of the bearing structure, and the helical tooth groove is arranged on the inner wall of the extended tubular structure.

[0010] As a preferred technical scheme of the utility model, the outer periphery of the cylinder barrel is provided with an oil inlet hole and an oil outlet hole, and the oil inlet hole and the oil outlet hole are respectively arranged on the outer end face of the cylinder barrel near the two side ends.

[0011] As a preferred technical scheme of the utility model, the piston rod further comprises a helical rack, a piston head and a terminal connecting rod, the helical rack is fixedly connected to the outer end face of the piston rod, the piston head is fixedly installed at the terminal end of the piston rod, and the terminal connecting rod is fixedly connected to the other side of the piston head.

[0012] As a preferred technical scheme of the utility model, the helical rack on the outer periphery of the piston rod is engaged with the helical tooth groove on the inner side of the built-in bearing sleeve.

[0013] As a preferred technical scheme of the utility model, the Turcon ring and the magnetic fluid sealing are adopted at the connection between the sealing cylinder cover and the built-in bearing sleeve.

[0014] As a preferred technical scheme of the utility model, the bending angle of the helical rack corresponds to the helical tooth groove, and the specific angle is not limited, and is determined according to the required torque in actual use.

[0015] Compared with the prior art, the utility model provides a continuous extrusion efficient oil cylinder, which has the following advantages

[0016] Beneficial effects:

[0017] A continuous extrusion efficient oil cylinder is provided with a built-in bearing sleeve, a helical tooth groove, a helical rack, a terminal connecting rod and a piston head, when the oil cylinder structure is used, the oil inlet hole and the oil outlet hole are respectively connected with external oil pipes, when the transmission rod and the piston rod move in the cylinder barrel, the helical rack on the outer side of the piston rod is connected with the helical tooth groove on the inner side of the built-in bearing sleeve, when the piston rod moves linearly, the piston rod rotates under the support of the built-in bearing sleeve, and the rotating effect is transmitted to the expansion connecting ring at the other end of the cylinder barrel through the terminal connecting rod.

[0018] Through the above setting and process, compared with the current continuous extrusion oil cylinder, by integrating linear propulsion and rotating action in a single hydraulic unit, the mechanical structure is significantly simplified and the efficiency is improved. The core function is that when the hydraulic oil pushes the piston rod to move linearly, the helical gear rack on the outer periphery of the piston rod and the bearing cooperate to convert part of the linear thrust into rotary torque, realizing the composite action of "push / pull + rotation". When linear motion plus rotary motion is required, the independent rotary motor and transmission mechanism in the traditional scheme are omitted. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 It is a schematic diagram of the cross section of the internal structure of the utility model;

[0021] Figure 3 It is a schematic diagram of the position of the helical tooth groove of the utility model;

[0022] Figure 4 It is a schematic diagram of the overall structure of the built-in bearing sleeve of the utility model.

[0023] In the figure: 1, cylinder barrel; 101, oil inlet hole; 102, oil outlet hole; 2, transmission rod; 3, expansion connecting ring; 4, built-in bearing sleeve; 401, helical tooth groove; 402, sealing cylinder cover; 5, piston rod; 501, helical gear rack; 502, piston head; 503, end connecting rod. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0025] In the embodiment: a continuous extrusion efficient oil cylinder, comprising a cylinder barrel 1, a transmission rod 2, an expansion connecting ring 3, the transmission rod 2 is arranged on the side of the cylinder barrel 1, and the expansion connecting ring 3 is arranged at the end of the transmission rod 2.

[0026] The side end of the cylinder barrel 1 is provided with a built-in bearing sleeve 4, and the inside of the built-in bearing sleeve 4 is provided with a piston rod 5.

[0027] The built-in bearing sleeve 4 further comprises a helical tooth groove 401 and a sealing cylinder cover 402, the helical tooth groove 401 is arranged on the end face of the inner wall of the built-in bearing sleeve 4, and the sealing cylinder cover 402 is sleeved on the periphery of the built-in bearing sleeve 4.

[0028] In this embodiment, the bearing structure is arranged inside the built-in bearing sleeve 4, and a tubular structure extends from the rear end of the bearing structure, and the helical tooth groove 401 is arranged on the inner wall of the extended tubular structure; the cylinder 1 is provided with an oil inlet hole 101 and an oil outlet hole 102, and the oil inlet hole 101 and the oil outlet hole 102 are arranged on the peripheral end face of the cylinder 1 near the two side ends.

[0029] Specifically, as shown in Figure 1 and Figure 4 , the tubular structure extending from the rear end of the built-in bearing sleeve 4 can increase the extension length of the helical tooth groove 401, so as to complete a larger angle rotation with the helical rack 501.

[0030] In this embodiment, the piston rod 5 further comprises a helical rack 501, a piston head 502 and a terminal connecting rod 503, the helical rack 501 is fixedly connected to the peripheral end face of the piston rod 5, the piston head 502 is fixedly installed at the terminal end of the piston rod 5, and the terminal connecting rod 503 is fixedly connected to the other side of the piston head 502; the helical rack 501 on the periphery of the piston rod 5 is engaged with the helical tooth groove 401 on the inner side of the built-in bearing sleeve 4.

[0031] Specifically, as shown in Figure 2 and Figure 3 , the piston rod 5 converts part of the linear thrust into rotary torque through the cooperation of the helical rack 501 and the helical tooth groove 401, and 45° lead angle corresponds to 90° rotation, so as to realize the composite action of “push / pull+rotation”.

[0032] In this embodiment, Turcon ring + magnetic fluid sealing is adopted at the connection between the sealing cylinder cover 402 and the built-in bearing sleeve 4; the bending angle of the helical rack 501 corresponds to the helical tooth groove 401, and the specific angle is not limited, and is determined according to the torque required in actual use.

[0033] The working principle and use process of the utility model are as follows: when the oil cylinder structure is used, the oil inlet hole 101 and the oil outlet hole 102 are connected with external oil pipes respectively, when the transmission rod 2 and the piston rod 5 move in the cylinder 1, the piston rod 5 rotates by itself under the support of the built-in bearing sleeve 4 when the piston rod 5 moves linearly, and the rotating effect is transmitted to the expansion connecting ring 3 at the other end of the cylinder 1 through the terminal connecting rod 503. When the hydraulic oil pushes the piston rod 5 to move linearly, the helical rack 501 on the periphery of the piston rod 5 and the bearing cooperate to convert part of the linear thrust into rotary torque, so as to realize the composite action of “push / pull+rotation”.

[0034] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application has been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.

Claims

1. A continuous extrusion high-efficiency oil cylinder, comprising a cylinder barrel (1), a transmission rod (2) and an extended connecting ring (3), wherein the transmission rod (2) is arranged at the side of the cylinder barrel (1), and the extended connecting ring (3) is arranged at the end of the transmission rod (2), characterized in that: an inner bearing sleeve (4) is arranged at the side end of the cylinder barrel (1), and a piston rod (5) is arranged inside the inner bearing sleeve (4); the inner bearing sleeve (4) further comprises a helical tooth groove (401) and a sealing cylinder cover (402), wherein the helical tooth groove (401) is arranged on the inner wall end face of the inner bearing sleeve (4), and the sealing cylinder cover (402) is sleeved on the periphery of the inner bearing sleeve (4); the inner bearing sleeve (4) is internally provided with a bearing structure, and a tubular structure is extended at the rear end of the bearing structure, and the helical tooth groove (401) is arranged on the inner wall of the extended tubular structure; the periphery of the cylinder barrel (1) is provided with an oil inlet hole (101) and an oil outlet hole (102), and the oil inlet hole (101) and the oil outlet hole (102) are respectively arranged on the peripheral end face near the two side ends of the cylinder barrel (1); the piston rod (5) further comprises a helical rack (501), a piston head (502) and an end connecting rod (503), wherein the helical rack (501) is fixedly connected to the peripheral end face of the piston rod (5), the piston head (502) is fixedly installed at the end of the piston rod (5), and the end connecting rod (503) is fixedly connected to the other side of the piston head (502); the helical rack (501) on the periphery of the piston rod (5) is engaged with the helical tooth groove (401) on the inner side of the inner bearing sleeve (4); the Turcon ring and magnetic fluid sealing are adopted at the connection between the sealing cylinder cover (402) and the inner bearing sleeve (4); the bending angle of the helical rack (501) corresponds to the helical tooth groove (401), and the specific angle is not limited, and is determined according to the required torque during actual use. ​ ​ 2. The continuous extrusion high efficiency oil cylinder according to claim 1, characterized in that: ​ 3. The continuous extrusion high efficiency oil cylinder according to claim 1, characterized in that: ​ 4. The continuous extrusion high efficiency oil cylinder according to claim 1, characterized in that: ​ 5. The continuous extrusion high efficiency oil cylinder according to claim 4, characterized in that: ​ 6. The continuous extrusion high efficiency oil cylinder according to claim 1, characterized in that: ​ 7. The continuous extrusion high efficiency oil cylinder according to claim 4, characterized in that: ​

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