Hidden oil way of spiral swing oil cylinder

Abstract

The utility model relates to the technical field of swing oil cylinders, and discloses a hidden oil way of a spiral swing oil cylinder, which comprises a base, a shell fixedly arranged at the upper end of the base, a front cover fixedly arranged at the front end of the shell, a hydraulic pump fixedly arranged at the rear end of the shell, and an oil outlet pipe fixedly arranged on one side of the upper end of the hydraulic pump. Driving cavities are formed in the two sides of the front end of the shell, piston rods are slidably arranged in the two driving cavities, a rotating shaft is rotatably arranged on the inner wall of the bottom end, located between the two piston rods, of the shell, and a driving gear is fixedly arranged on the outer wall of the rotating shaft; tooth grooves are formed in the sides, close to the driving gear, of the two piston rods. According to the concealed oil way of the spiral swing oil cylinder, it can be guaranteed that the piston stably moves in the driving cavity, and stable rotation of the rotating shaft is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of swing cylinders and related technologies, specifically a concealed oil circuit for a spiral swing cylinder. Background Technology

[0002] The helical oscillating cylinder converts the linear motion of the piston into the oscillating motion of the output shaft through a helical thread meshing. Its significant feature is its extremely high efficiency. The longer the linear motion of the piston, the greater the rotational motion. It uses hydraulics to generate very high torque in a very small space.

[0003] The existing patent with publication number CN213331760U proposes a spiral swing cylinder. The front end of the slider is aligned with the slide groove, and then the cylinder body is moved forward, thereby driving the slider to slide in the slide groove. At this time, the limiting block is located inside the limiting groove, thereby preventing the cylinder body from moving up and down. Then, the left end of the bolt passes through the fixing block and the limiting hole, thereby fixing the cylinder body above the operating table. When disassembling the cylinder body, the bolt is unscrewed and the slider is slid forward or backward to separate the cylinder body from the operating table.

[0004] However, when the oil circuit of the device pushes the piston, it cannot guarantee that the piston will move smoothly inside the drive chamber, which may cause the rotating plate to stop. Utility Model Content

[0005] The purpose of this invention is to provide a concealed oil circuit for a spiral swing cylinder to solve the problem that existing devices cannot guarantee the smooth movement of the piston inside the drive chamber, which may cause the rotating plate to stop.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a concealed oil circuit for a spiral swing cylinder, comprising a base, a housing fixedly mounted on the upper end of the base, a front cover fixedly mounted on the front end of the housing, a hydraulic pump fixedly mounted on the rear end of the housing, an oil outlet pipe fixedly mounted on one side of the upper end of the hydraulic pump, the front end of the oil outlet pipe entering the interior of the drive chamber, drive chambers being opened on both sides of the front end of the housing, piston rods being slidably mounted inside the two drive chambers, a rotating shaft being rotatably mounted on the inner wall of the bottom end of the housing between the two piston rods, a drive gear being fixedly mounted on the outer wall of the rotating shaft, tooth grooves being opened on the side of the two piston rods near the drive gear, an oil suction pipe being fixedly mounted on the other side of the upper end of the hydraulic pump, the front end of the oil suction pipe entering the interior of the other drive chamber, and the output end of the rotating shaft passing through the housing to the upper end and being fixedly connected to a rotating plate.

[0007] Preferably, a first screw is fixedly provided in an annular shape at the lower end of the rotating plate, a connecting plate is fixedly provided at the upper end of the rotating shaft, and the output end of the first screw passes through the connecting plate and has a nut threaded on its outer wall.

[0008] Preferably, a docking part is fixedly provided at the rear end of the front cover, a docking groove is provided at the front end of the housing located at the rear end of the docking part, a plurality of second screws are provided on one side of the outer wall of the housing, and a threaded hole is provided on the outer wall of the docking part located at the output end of the second screws.

[0009] Preferably, a sealing gasket is fixedly provided at the rear end of the front cover located on the inner wall of the docking part, and the rear end of the sealing gasket is in contact with the front end face of the housing.

[0010] Preferably, the base consists of two rectangular vertical plates and one horizontal plate, with the upper end of the rectangular vertical plates fixedly connected to the lower end of the housing.

[0011] Preferably, mounting holes are provided at the four corners of the upper end of the base.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1) By setting two drive chambers, when the hydraulic pump is working, the hydraulic oil inside the drive chamber on one side can be sent to the rear end of the drive chamber on the other side, so that the hydraulic oil drives the drive gear to rotate, thereby ensuring the smooth rotation of the shaft.

[0014] 2) By setting up a mating part, a mating groove, a second screw, a threaded hole, and a sealing gasket, the mating part and the mating groove can be guided during the installation of the front cover, which speeds up the fixing efficiency of the second screw. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a concealed oil circuit for a spiral swing cylinder in an embodiment of this utility model.

[0016] Figure 2 This is a schematic cross-sectional view of the shell structure in an embodiment of this utility model;

[0017] Figure 3 This is a schematic diagram of the rear end structure of the front cover in an embodiment of this utility model;

[0018] Figure 4 This is a schematic diagram of the lower structure of the rotating plate in an embodiment of this utility model.

[0019] In the diagram: 1. Base; 2. Housing; 3. Front cover; 4. Hydraulic pump; 5. Oil outlet pipe; 6. Drive chamber; 7. Piston rod; 8. Rotating shaft; 9. Drive gear; 10. Gear groove; 11. Rotating plate; 12. Oil extraction pipe; 121. First screw; 13. Connecting plate; 14. Nut; 15. Connecting part; 16. Connecting groove; 17. Second screw; 18. Sealing gasket; 19. Threaded hole. Detailed Implementation

[0020] 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.

[0021] Example 1

[0022] Combination Figures 1-4 A concealed hydraulic circuit for a spiral swing cylinder includes a base 1, a housing 2 fixedly mounted on the upper end of the base 1, a front cover 3 fixedly mounted on the front end of the housing 2, a hydraulic pump 4 fixedly mounted on the rear end of the housing 2, an oil outlet pipe 5 fixedly mounted on one side of the upper end of the hydraulic pump 4, the front end of the oil outlet pipe 5 entering the interior of the drive chamber 6, drive chambers 6 are opened on both sides of the front end of the housing 2, piston rods 7 are slidably mounted inside the two drive chambers 6, a rotating shaft 8 is rotatably mounted on the inner wall of the bottom end of the housing 2 located between the two piston rods 7, a drive gear 9 is fixedly mounted on the outer wall of the rotating shaft 8, and tooth grooves 10 are opened on the side of the two piston rods 7 near the drive gear 9, an oil suction pipe 12 is fixedly mounted on the other side of the upper end of the hydraulic pump 4, the front end of the oil suction pipe 12 entering the interior of the other drive chamber 6, and the output end of the rotating shaft 8 passes through the housing 2 to the upper end and is fixedly connected to a rotating plate 11.

[0023] See Figure 2 , Figure 3 Furthermore, a docking part 15 is fixedly installed at the rear end of the front cover 3. A docking groove 16 is opened at the front end of the housing 2 located at the rear end of the docking part 15. Multiple second screws 17 are provided on one side of the outer wall of the housing 2. A threaded hole 19 is opened on the outer wall of the docking part 15 located at the output end of the second screw 17. A sealing gasket 18 is fixedly installed at the rear end of the front cover 3 located on the inner wall of the docking part 15. The rear end of the sealing gasket 18 contacts the front end face of the housing 2. The base 1 is composed of two rectangular vertical plates and a horizontal plate. The upper end of the rectangular vertical plates is fixedly connected to the lower end of the housing 2. Mounting holes are opened at the four corners of the upper end of the base 1.

[0024] Specifically, after the mating part 15 enters the mating groove 16, it can speed up the assembly of the front cover 3 and the housing 2, freeing up both hands for the later installation of the second screw 17. The threaded hole 19 facilitates the entry of the second screw 17, and the sealing gasket 18 ensures the seal at the gap after the front cover 3 is closed.

[0025] Example 2

[0026] See Figure 4Furthermore, based on Embodiment 1, the lower end of the rotating plate 11 is fixedly provided with a first screw 121 in an annular shape, the upper end of the rotating shaft 8 is fixedly provided with a connecting plate 13, and the output end of the first screw 121 passes through the connecting plate 13 and is provided with a nut 14 threaded on its outer wall.

[0027] Specifically, the first screw 121 passes through the connecting plate 13 and engages with the nut 14 to achieve the fixed installation of the rotating plate 11.

[0028] In actual operation, when the rotating plate 11 needs to be rotated, the hydraulic pump 4 is started, so that the hydraulic oil inside the drive chamber 6 on one side is drawn out and enters the drive chamber 6 on the other side through the oil outlet pipe 5, so that the piston on the other side moves forward, thereby causing the toothed groove 10 to rotate the rotating shaft 8. The drive gear 9 drives the piston rod 7 on one side to move backward, thereby ensuring the stable rotation of the entire rotating shaft 8 and realizing the smooth rotation of the rotating plate 11.

[0029] 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 the 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 concealed hydraulic circuit for a helical swing cylinder, comprising a base (1), a housing (2) fixedly disposed on the upper end of the base (1), and a front cover (3) fixedly disposed on the front end of the housing (2), characterized in that: A hydraulic pump (4) is fixedly installed at the rear end of the housing (2). An oil outlet pipe (5) is fixedly installed on one side of the upper end of the hydraulic pump (4). The front end of the oil outlet pipe (5) enters the interior of the drive chamber (6). Drive chambers (6) are opened on both sides of the front end of the housing (2). Piston rods (7) are slidably installed inside the two drive chambers (6). A rotating shaft (8) is rotatably installed on the inner wall of the bottom end of the housing (2) between the two piston rods (7). A drive gear (9) is fixedly installed on the outer wall of the rotating shaft (8). A tooth groove (10) is opened on the side of the two piston rods (7) near the drive gear (9). An oil suction pipe (12) is fixedly installed on the other side of the upper end of the hydraulic pump (4). The front end of the oil suction pipe (12) enters the interior of the drive chamber (6) on the other side. The output end of the rotating shaft (8) passes through the housing (2) to the upper end and is fixedly connected to a rotating plate (11).

2. The concealed hydraulic circuit of a spiral swing cylinder according to claim 1, characterized in that: The lower end of the rotating plate (11) is fixedly provided with a first screw (121) in an annular shape, and the upper end of the rotating shaft (8) is fixedly provided with a connecting plate (13). The output end of the first screw (121) passes through the connecting plate (13) and a nut (14) is threaded on its outer wall.

3. The concealed hydraulic circuit of a spiral swing cylinder according to claim 1, characterized in that: The front cover (3) is fixedly provided with a docking part (15) at the rear end. The housing (2) located at the rear end of the docking part (15) has a docking groove (16) at the front end. Multiple second screws (17) are provided on one side of the outer wall of the housing (2). The docking part (15) located at the output end of the second screw (17) has a threaded hole (19) on the outer wall.

4. The concealed hydraulic circuit of a spiral swing cylinder according to claim 3, characterized in that: A sealing gasket (18) is fixedly provided at the rear end of the front cover (3) located on the inner wall of the docking part (15), and the rear end of the sealing gasket (18) is in contact with the front end face of the housing (2).

5. The concealed hydraulic circuit of a spiral swing cylinder according to claim 1, characterized in that: The base (1) consists of two rectangular vertical plates and a horizontal plate, with the upper end of the rectangular vertical plates fixedly connected to the lower end of the shell (2).

6. The concealed hydraulic circuit of a spiral swing cylinder according to claim 1, characterized in that: Mounting holes are provided at the four corners of the upper end of the base (1).

Images