Rotary oil cylinder

Abstract

The utility model provides a rotary oil cylinder, which belongs to the technical field of rotary oil cylinders and is characterized in that a piston of the rotary oil cylinder comprises a rotary oil cylinder body; the rotary groove is formed in the rotary oil cylinder body; the rotary piston is connected into the rotary groove in a sliding manner; the air pressure groove is formed in one side end of the rotary piston; the pressurizing push plate is fixedly connected to the inner wall of one side of the rotary groove and slides in the air pressure groove; and the sealing plate is fixedly connected to one side end of the pressurizing push plate and slides in the air pressure groove. And the number of the oil inlet holes is two, the two oil inlet holes are formed in the upper end of the rotary oil cylinder body and communicate with the rotary groove, the piston can reduce abrasion of the rotary piston during movement, and the service life of the device is further prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary oil cylinders, and in particular relates to a rotary oil cylinder. Background Art

[0002] Rotary hydraulic cylinders, also known as hydraulic rotary cylinders, are compact fittings that use hydraulics to pack very high torque into a small space. Despite the high power, they can still be precisely and easily controlled.

[0003] Authorization publication number "CN210178671U" discloses a rotary piston rod oil cylinder, specifically related to the field of hydraulic cylinders, including a cylinder body, a guide sleeve is penetrated inside the cylinder body, a cylinder bottom is fixedly provided at one end of the cylinder body away from the guide sleeve, a piston rod is penetrated inside the guide sleeve, an oil inlet is opened at the bottom of one end of the cylinder body close to the cylinder bottom, a first connecting pipe is provided at the bottom of the oil inlet, an exhaust port is opened at the top of one end of the cylinder body close to the cylinder bottom, a second connecting pipe is provided at the top of the exhaust port, a bolt is penetrated inside the second connecting pipe, a piston assembly is provided at one end of the piston rod; the piston assembly includes a fixed rod. The utility model cooperates with the first semicircular groove through the second semicircular groove to jointly accommodate the steel ball, so that the fixed rod can rotate relative to the piston body, so that the piston rod can rotate freely when in use, and then when dealing with some specific parts of the engineering machinery, the piston rod can rotate relatively to a certain extent.

[0004] The above-mentioned new piston rod can rotate freely, so when dealing with some specific parts on the engineering machinery, the piston rod can rotate relatively to a certain extent. However, the hydraulic pressure on both sides of the rotary cylinder in the prior art pushes the piston to move. When the hydraulic pressure provides pressure to move the piston, the piston cannot be slowed down. The direct collision between the piston and the inner wall of the cylinder will accelerate the wear of the piston and reduce the service life of the piston. Utility Model Content

[0005] The utility model aims to provide a rotary oil cylinder, aiming to solve the problem in the prior art that hydraulic pressure on both sides of the rotary oil cylinder pushes the piston to move, the piston cannot be decelerated when the hydraulic pressure provides pressure to move the piston, and the piston directly collides with the inner wall of the oil cylinder, which accelerates the wear of the piston and reduces the service life of the piston.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A rotary cylinder, comprising:

[0008] Rotary cylinder body;

[0009] A rotary groove, wherein the rotary groove is provided in the rotary cylinder body;

[0010] A rotary piston, wherein the rotary piston is slidably connected in the rotary groove;

[0011] An air pressure groove, the air pressure groove is opened at one side end of the rotary piston;

[0012] A boost push plate, which is fixedly connected to an inner wall of one side of the rotary groove and slides in the air pressure groove;

[0013] A sealing plate is fixedly connected to one side end of the boost push plate and slides in the air pressure groove.

[0014] An oil inlet hole, two of which are provided, and both are opened at the upper end of the rotary cylinder body and communicated with the rotary groove;

[0015] A separation block is fixedly connected to the circumferential surface of the rotary piston.

[0016] As a preferred solution of the utility model, two hydraulic grooves are provided on the circumferential surface of the rotary piston, and the patterns of the two hydraulic grooves are opposite.

[0017] As a preferred solution of the utility model, two side sealing blocks are fixedly connected to the circumferential inner wall of the rotary groove, and the circumferential inner walls of the two side sealing blocks are each provided with an oil sealing block, and the oil sealing block slides in the hydraulic groove.

[0018] As a preferred solution of the utility model, a cross slide groove is provided at one side end of the rotary piston, and a cross slider is slidably connected in the cross slide groove.

[0019] As a preferred solution of the utility model, a rotation groove is opened on one inner wall of the rotary groove, and a rotation plate is fixedly connected to one side end of the cross slider, and the rotation plate is loaded and slides in the rotation groove.

[0020] As a preferred solution of the utility model, one side end of the rotating plate is fixedly connected with a connecting block.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] 1. In this scheme, through this device, when the rotary piston is about to move to the bottom, the air pressure in the air pressure groove is used to increase the movement resistance of the rotary piston, thereby slowing down the rotary piston, so that the rotary piston will not be excessively squeezed after rotating to the bottom, reducing the wear of the rotary piston during movement, and further increasing the service life of the device.

[0023] 2. In this scheme, through this device, the number of oil sealing blocks is the same as the number of hydraulic grooves, and multiple grooves of the hydraulic groove are blocked by the oil sealing blocks. When the rotary piston moves spirally, the oil sealing blocks seal the hydraulic oil in the hydraulic groove to prevent the hydraulic oil from overflowing. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0025] Figure 1 It is a structural stereogram of the utility model;

[0026] Figure 2 It is a structural cross-sectional view of the utility model;

[0027] Figure 3 It is a cross-sectional exploded view of the structure in the utility model;

[0028] Figure 4 For the utility model Figure 3 Enlarged view of point A in the middle.

[0029] In the figure: 1. Rotary cylinder body; 2. Rotary groove; 3. Rotary piston; 4. Hydraulic groove; 5. Air pressure groove; 6. Pressurized push plate; 7. Sealing plate; 8. Side sealing block; 9. Oil sealing block; 10. Oil inlet hole; 11. Rotating groove; 12. Cross slide groove; 13. Cross slide block; 14. Rotating plate; 15. Connecting block; 16. Separating block. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Example

[0032] See also Figure 1-Figure 4 , the utility model provides the following technical solutions:

[0033] A rotary cylinder, comprising:

[0034] Rotary cylinder body 1;

[0035] A rotary groove 2 is provided in the rotary cylinder body 1;

[0036] A rotary piston 3 is slidably connected in the rotary groove 2;

[0037] An air pressure groove 5, which is provided at one side end of the rotary piston 3;

[0038] A boost push plate 6, which is fixedly connected to an inner wall of one side of the rotary groove 2 and slides in the air pressure groove 5;

[0039] The sealing plate 7 is fixedly connected to one side end of the boost push plate 6 and slides in the air pressure groove 5 .

[0040] The oil inlet hole 10 is provided with two oil inlet holes 10, and the two oil inlet holes 10 are both opened at the upper end of the rotary cylinder body 1 and are connected with the rotary groove 2;

[0041] The partition block 16 is fixedly connected to the circumferential surface of the rotary piston 3 .

[0042] In the specific embodiment of the utility model, the rotary piston 3 adopts a rolling process, which is more wear-resistant and surface-plated, and has more stable physical properties, so that the rotary piston 3 is more durable in the rotary movement in the rotary groove 2, and the service life is increased. The partition block 16 is in contact with the inner wall of the rotary groove 2 and isolates the rotary groove 2 into two spaces. The oil inlet hole 10 is the oil inlet of the left and right spaces in the rotary groove 2. The booster push plate 6 is arranged on the inner wall of the rotary groove 2 and is fixed, and the rotary piston 3 rotates and moves in the rotary groove 2. When the rotary piston 3 rotates and moves, the sealing plate 7 The boost push plate 6 also slides in the air pressure groove 5, and the sealing plate 7 seals the air pressure groove 5. When the rotary piston 3 rotates to the left, the sealing plate 7 squeezes into the air pressure groove 5. The total amount of air in the air pressure groove 5 remains unchanged while the space is reduced. When the rotary piston 3 is about to move to the bottom, the air pressure in the air pressure groove 5 is used to increase the movement resistance of the rotary piston 3, and then the rotary piston 3 is decelerated, so that the rotary piston 3 will not be excessively squeezed after rotating to the bottom, thereby reducing the wear of the rotary piston 3 during movement, and further increasing the service life of the device.

[0043] For details, please refer to Figure 1-Figure 4 Two hydraulic grooves 4 are provided on the circumferential surface of the rotary piston 3, and the patterns of the two hydraulic grooves 4 are opposite.

[0044] In this embodiment: the hydraulic groove 4 is a plurality of spiral grooves, and the hydraulic grooves 4 opened on both sides of the rotary piston 3 have opposite patterns to provide torque for the rotation of the rotary piston 3. When the rotary piston 3 moves to the bottom of one side of the rotary groove 2, the oil inlet hole 10 on one side supplies oil to the hydraulic groove 4. The hydraulic oil pushes the rotary piston 3 to move in the rotary groove 2 by squeezing the inner wall of the hydraulic groove 4, and provides torque for the rotary piston 3 to rotate when it moves through the spiral thread of the hydraulic groove 4.

[0045] For details, please refer to Figure 1-Figure 4 Two side sealing blocks 8 are fixedly connected to the circumferential inner wall of the rotary groove 2 , and the circumferential inner walls of the two side sealing blocks 8 are both provided with oil sealing blocks 9 , and the oil sealing blocks 9 slide in the hydraulic groove 4 .

[0046] In this embodiment: the two side sealing blocks 8 seal the position where the rotary piston 3 slides as a closed space, the number of oil sealing blocks 9 is the same as the number of hydraulic grooves 4, and multiple grooves of the hydraulic groove 4 are blocked by the oil sealing blocks 9. When the rotary piston 3 moves spirally, the oil sealing blocks 9 seal the hydraulic oil in the hydraulic groove 4 to prevent the hydraulic oil from overflowing.

[0047] For details, please refer to Figure 1-Figure 4 A cross slot 12 is provided at one side end of the rotary piston 3 , and a cross slider 13 is slidably connected in the cross slot 12 .

[0048] In this embodiment: the cross slide groove 12 and the cross slider 13 are arranged on the other side of the air pressure groove 5 and the sealing plate 7, and also provide a limit for the sliding of the other side of the rotary piston 3 to avoid excessive impact force of the rotary piston 3 on one side of the rotary groove 2, while the cross slider 13 is not fixed, and the cross slider 13 rotates with the rotary piston 3 through the limit of the cross slide groove 12.

[0049] For details, please refer to Figure 1-Figure 4 A rotating groove 11 is formed on the inner wall of one side of the rotating groove 2 , and a rotating plate 14 is fixedly connected to one end of the cross slider 13 , and the rotating plate 14 is loaded and slides in the rotating groove 11 .

[0050] In this embodiment, the rotation groove 11 limits the position of the cross slider 13, and the cross slider 13 can be rotated by the rotation plate 14, but the rotation groove 11 fixes the rotation plate 14 horizontally, thereby fixing the horizontal position of the cross slider 13 and allowing the cross slider 13 to rotate.

[0051] For details, please refer to Figure 1-Figure 4 A connecting block 15 is fixedly connected to one side end of the rotating plate 14 .

[0052] In this embodiment: the connection block 15 is fixed to one side of the rotating plate 14, and multiple surfaces of the connection block 15 are provided with multiple connection ports for power transmission of the device.

[0053] The working principle and use process of the utility model: the rotary piston 3 adopts a rolling process, which is more wear-resistant and surface-plated, and has more stable physical properties, so that the rotary piston 3 is more durable in the rotary movement in the rotary groove 2, and the service life is increased. The partition block 16 fits with the inner wall of the rotary groove 2 and isolates the rotary groove 2 into two spaces. The oil inlet hole 10 is the oil inlet of the left and right spaces in the rotary groove 2. The booster push plate 6 is arranged on the inner wall of the rotary groove 2 and is fixed, and the rotary piston 3 rotates and moves in the rotary groove 2. When the rotary piston 3 rotates and moves, the sealing plate 7 and the boost push plate 6 also slide in the air pressure groove 5, and the sealing plate 7 seals the air pressure groove 5. When the rotary piston 3 rotates to the left, the sealing plate 7 squeezes into the air pressure groove 5. The total amount of air in the air pressure groove 5 remains unchanged while the space is reduced. Then, when the rotary piston 3 is about to move to the bottom, the air pressure in the air pressure groove 5 is used to increase the movement resistance of the rotary piston 3, and then the rotary piston 3 is decelerated, so that the rotary piston 3 will not be excessively squeezed after rotating to the bottom, reducing the wear of the rotary piston 3 during movement, and further increasing the service life of the device.

[0054] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotary cylinder, characterized in that: include: Rotary cylinder body (1); A rotary groove (2), wherein the rotary groove (2) is provided in the rotary cylinder body (1); A rotary piston (3), wherein the rotary piston (3) is slidably connected in the rotary groove (2); An air pressure groove (5), wherein the air pressure groove (5) is provided at one side end of the rotary piston (3); A boost push plate (6), the boost push plate (6) being fixedly connected to an inner wall of one side of the rotary groove (2) and sliding in the air pressure groove (5); A sealing plate (7), the sealing plate (7) being fixedly connected to one side end of the boost push plate (6) and sliding in the air pressure groove (5); An oil inlet hole (10), wherein two oil inlet holes (10) are provided, and both of the two oil inlet holes (10) are opened at the upper end of the rotary cylinder body (1) and are connected to the rotary groove (2); A separation block (16), wherein the separation block (16) is fixedly connected to the circumferential surface of the rotary piston (3).

2. A rotary cylinder according to claim 1, characterized in that: Two hydraulic grooves (4) are provided on the circumferential surface of the rotary piston (3), and the patterns of the two hydraulic grooves (4) are opposite to each other.

3. A rotary cylinder according to claim 2, characterized in that: Two side sealing blocks (8) are fixedly connected to the circumferential inner wall of the rotary groove (2), and the circumferential inner walls of the two side sealing blocks (8) are both provided with oil sealing blocks (9), and the oil sealing blocks (9) slide in the hydraulic groove (4).

4. A rotary cylinder according to claim 3, characterized in that: A cross slide groove (12) is provided at one side end of the rotary piston (3), and a cross slide block (13) is slidably connected in the cross slide groove (12).

5. A rotary cylinder according to claim 4, characterized in that: A rotation groove (11) is provided on one inner wall of the rotary groove (2), and a rotation plate (14) is fixedly connected to one end of the cross slide block (13), wherein the rotation plate (14) is loaded and slides in the rotation groove (11).

6. A rotary cylinder according to claim 5, characterized in that: A connecting block (15) is fixedly connected to one side end of the rotating plate (14).

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