Novel upper pressing cylinder

Abstract

The utility model provides a novel upward pressing cylinder which comprises a cylinder body, a piston rod located in the cylinder body and a cylinder cover at the bottom of the cylinder body, a plurality of installation grooves are formed in the inner circumferential wall of the bottom of the cylinder body, and the tail ends of the installation grooves are all connected with sliding grooves. A plurality of sliding blocks matched with the mounting grooves are arranged on the peripheral wall of the cylinder cover, and the sliding blocks are inserted in the direction of the mounting grooves and movably connected into the sliding grooves by rotating the cylinder cover. A threaded hole is formed between the bottom of the cylinder body and the cylinder cover, a bolt is arranged in the threaded hole to fasten the cylinder body and the cylinder cover, during installation, the piston rod is installed in the cylinder body, a plurality of sliding blocks on the peripheral wall of the cylinder cover are aligned with a plurality of installation grooves in the inner wall of the cylinder body and inserted into the installation grooves, and after the cylinder cover makes close contact with the cylinder body, the sliding blocks are installed at the tail ends of the installation grooves. And then the cylinder cover is rotated, the sliding blocks slide into the sliding grooves, rapid positioning is completed, then installation can be completed by installing bolts in the threaded holes, and convenience and high efficiency are achieved.

Description

Technical Field

[0001] This utility model relates to the field of press cylinders, and in particular to a novel press cylinder. Background Technology

[0002] A hydraulic cylinder, also known as a press cylinder, is a common hydraulic actuator widely used in various mechanical equipment. It mainly uses the pressure of hydraulic oil to achieve linear reciprocating motion, thereby driving mechanical parts to work. When hydraulic oil is pumped into the cylinder, it generates pressure on one side of the piston, pushing the piston and the mechanical parts connected to it to move forward. When the pressure of the hydraulic oil decreases or the direction changes, the piston and mechanical parts will move in the opposite direction accordingly. This linear reciprocating motion provides a stable and reliable power source for mechanical equipment.

[0003] A hydraulic pressing cylinder, as described in Chinese patent document CN202221041050.0, includes a cylinder body with a cylinder cover. A piston is located inside the cylinder body, and one end of a concave rod is fixedly connected to it. The other end of the concave rod has a spherical concave surface, and a convex rod is fixedly connected to the concave surface of the rod. The end of the convex rod connected to the concave rod has a convex surface that mates with the concave surface. The cylinder body and cylinder cover each have flow channels communicating with the outside. A rod cavity flange is fixedly connected to the flow channel opening on the cylinder cover, and a rodless cavity flange is fixedly connected to the flow channel opening on the cylinder body. The spherical fit inside the piston rod makes the rolling force distribution more uniform, solving the problem of rolling force concentration on the central roller of the bearing, creating a better working environment for the bearing, and significantly improving the bearing's service life.

[0004] However, the above-mentioned patent has certain drawbacks in its use. During the cylinder installation process at the construction site, precise alignment must be achieved, which can waste a lot of time in complex environments. In addition, the efficiency is low when repairing or replacing parts, resulting in prolonged equipment downtime.

[0005] To address these issues, a novel pressing cylinder is proposed. Utility Model Content

[0006] In order to overcome the problem of inconvenient installation caused by the cylinder head not being easy to connect to the cylinder body in complex environments in the existing technology, this utility model provides a new type of press-fit cylinder.

[0007] This utility model is achieved using the following technical solution:

[0008] A novel press cylinder includes a cylinder body, a piston rod located inside the cylinder body, and a cylinder cover at the bottom of the cylinder body. The inner peripheral wall at the bottom of the cylinder body is provided with multiple mounting grooves, and each of the mounting grooves is connected to a sliding groove at its end. The outer peripheral wall of the cylinder cover is provided with multiple sliders that match the mounting grooves. The sliders are inserted along the direction of the mounting grooves and are movably connected to the sliding grooves by rotating the cylinder cover.

[0009] A threaded hole is provided between the bottom of the cylinder block and the cylinder head, and a bolt is provided in the threaded hole to fasten the cylinder block and the cylinder head.

[0010] In a preferred embodiment of this utility model, the piston rod is provided with a rod head at one end inside the cylinder. The top end of the rod head is a first conical surface, and the top end of the cylinder head is a second conical surface. The first conical surface is in contact with the inner wall of the cylinder to form a first chamber, and the bottom end of the rod head and the second conical surface form a second chamber.

[0011] As a preferred embodiment of the present invention, the top of the cylinder is provided with a first oil port, the first oil port is connected to the first chamber, and a first oil supply pipe is installed in the first oil port.

[0012] As a preferred embodiment of the present invention, a second oil port is provided on the second conical surface, the second oil port is connected to the second chamber, and a second oil supply pipe is installed inside the second oil port.

[0013] As a preferred embodiment of this utility model, the contact portion between the rod head peripheral wall and the cylinder peripheral wall is provided with a first reserved opening, and a first sealing ring is installed in the first reserved opening.

[0014] As a preferred embodiment of the present invention, the inner peripheral wall of the cylinder head is provided with a second reserved opening, and a second sealing ring is installed in the second reserved opening.

[0015] As a preferred embodiment of this utility model, the outer peripheral wall of the cylinder head is provided with a third reserved opening, and a third sealing ring is installed in the third reserved opening.

[0016] Compared with existing technologies, the advantages of this utility model are:

[0017] 1. During installation, the piston rod is installed into the cylinder body. The multiple sliders on the outer peripheral wall of the cylinder head are aligned with the multiple mounting slots on the inner wall of the cylinder body and inserted. After the cylinder head and cylinder body are in close contact, the sliders are installed at the end of the mounting slots. Then, the cylinder head is rotated to make the sliders slide into the slots, completing the quick positioning. Then, the installation is completed by installing bolts in the threaded holes, which is convenient and efficient.

[0018] 2. In actual use, when the second chamber is completely filled, refilling the first chamber with oil will result in more pressure and pose a risk. By setting the first conical surface, even if the second chamber is completely filled, the first conical surface forms a small oil storage space, which can effectively alleviate the risk of excessive pressure. Conversely, when the first chamber is completely filled, the second chamber can also form an oil storage space through the second conical surface to ensure the stable operation of the entire system.

[0019] 3. By installing the first sealing ring, the second sealing ring, and the third sealing ring into their respective positions, the sealing performance and stability of the press cylinder during the stamping process are ensured. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the cylinder block of this utility model;

[0021] Figure 2 This is an exploded view of the present invention;

[0022] Figure 3 This is a structural diagram of the bottom of the cylinder block of this utility model;

[0023] Figure 4 This is a structural diagram of the cylinder head of this utility model;

[0024] Figure 5 This is a sectional view of the cylinder block, piston rod, and cylinder head of this utility model;

[0025] In the diagram: 1. Cylinder block; 11. Mounting groove; 12. Slide groove; 2. Piston rod; 21. Rod head; 22. First conical surface; 23. First reserved opening; 24. First sealing ring; 3. Cylinder head; 31. Slider; 32. Second reserved opening; 33. Second sealing ring; 34. Third reserved opening; 35. Third sealing ring; 36. Second conical surface; 4. First oil port; 41. First oil supply pipe; 5. Second oil port; 51. Second oil supply pipe; 6. First chamber; 7. Second chamber; 8. Threaded hole; 81. Bolt. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] Example:

[0028] Please see Figures 1-5 A new type of press cylinder includes:

[0029] The cylinder body 1, the piston rod 2 located inside the cylinder body 1, and the cylinder head 3 at the bottom of the cylinder body 1 are provided with a plurality of mounting grooves 11 on the inner peripheral wall at the bottom of the cylinder body 1, and the ends of the plurality of mounting grooves 11 are connected to sliding grooves 12; the outer peripheral wall of the cylinder head 3 is provided with a plurality of sliders 31 that match the mounting grooves 11, and the sliders 31 are inserted along the direction of the mounting grooves 11 and are movably connected in the sliding grooves 12 by rotating the cylinder head 3;

[0030] A threaded hole 8 is provided between the bottom of the cylinder body 1 and the cylinder head 3, and a bolt 81 is provided in the threaded hole 8 to fasten the cylinder body 1 and the cylinder head 3.

[0031] In this embodiment, a piston rod 2 is movably installed inside the cylinder body 1. A cylinder cover 3 is provided at the bottom of the cylinder body 1. Multiple mounting grooves 11 are evenly distributed on the inner peripheral wall of the bottom of the cylinder body 1. The ends of the multiple mounting grooves 11 are connected to sliding grooves 12. The mounting grooves 11 and sliding grooves 12 are interconnected. Multiple sliders 31 are evenly distributed on the outer peripheral wall of the cylinder cover 3. The multiple sliders 31 match the mounting grooves 11 and sliding grooves 12. The sliders 31 are inserted along the direction of the mounting grooves 11 and are movably connected to the sliding grooves 12 by rotating the cylinder cover 3, thus completing quick installation and positioning. The bottom of the cylinder body 1 and the cylinder cover 3 are provided with threaded holes 8. Bolts 81 are installed in the threaded holes 8. When the sliders 31 slide into the sliding grooves 12, the installation is completed by installing the bolts 81 in the threaded holes 8.

[0032] As a preferred embodiment of the present invention, the piston rod 2 is provided with a rod head 21 at one end inside the cylinder 1. The top end of the rod head 21 is a first conical surface 22, and the top end of the cylinder head 3 is a second conical surface 36. The first conical surface 22 is in contact with the inner wall of the cylinder 1 to form a first chamber 6, and the bottom end of the rod head 21 and the second conical surface 36 form a second chamber 7.

[0033] In this embodiment, the piston rod 2 has a rod head 21 at one end, which is located inside the cylinder body 1. The top surface of the rod head 21 is not flat; instead, it is a first conical surface 22. The top of the cylinder head 3 has a second conical surface 36. The space between the first conical surface 22 at the top of the rod head 21 and the inner top wall of the cylinder body 1 forms a first chamber 6. The bottom of the rod head 21 and the second conical surface 36 form a second chamber 7. When oil is injected into the first chamber 6, oil is withdrawn from the second chamber 7, causing the piston rod 2 to move. Conversely, when oil is injected into the second chamber 7, oil is withdrawn from the first chamber 6, causing the piston rod 2 to move in the opposite direction.

[0034] As a preferred embodiment of the present invention, the cylinder body 1 is provided with a first oil port 4 on the top, the first oil port 4 is connected to the first chamber 6, and a first oil supply pipe 41 is installed in the first oil port 4.

[0035] In this embodiment, a first oil port 4 is provided at the middle position of the top of the cylinder 1. The first oil port 4 is used to connect to the first chamber 6. A first oil supply pipe 41 is provided in the first oil port 4. The first oil supply pipe 41 introduces or discharges oil from the first chamber 6 to achieve precise control of the piston rod 2.

[0036] As a preferred embodiment of the present invention, a second oil port 5 is provided on the second conical surface 36, the second oil port 5 is connected to the second chamber 7, and a second oil supply pipe 51 is installed in the second oil port 5.

[0037] In this embodiment, a second oil port 5 is provided on the second conical surface 36. The second oil port 5 is used to connect to the second chamber 7. A second oil supply pipe 51 is provided in the first oil port 4. The second oil supply pipe 51 is located inside the cylinder head 3 and extends to one side of the cylinder head 3. The second oil supply pipe 51 introduces or discharges oil from the second chamber 7.

[0038] As a preferred embodiment of the present invention, the contact portion between the peripheral wall of the rod head 21 and the peripheral wall of the cylinder body 1 is provided with a first reserved opening 23, and a first sealing ring 24 is installed in the first reserved opening 23.

[0039] In this embodiment, the rod head 21 has a first reserved opening 23 on its peripheral wall, and a first sealing ring 24 is provided in the first reserved opening 23. The function of the first sealing ring 24 is to prevent the oil in the first chamber 6 from leaking out and guiding it to the second chamber 7, so as to ensure stable sealing performance during operation.

[0040] As a preferred embodiment of the present invention, the inner peripheral wall of the cylinder head 3 is provided with a second reserved opening 32, and a second sealing ring 33 is installed in the second reserved opening 32.

[0041] In this embodiment, the inner peripheral wall of the cylinder head 3 is provided with a second reserved opening 32, and a second sealing ring 33 is provided in the second reserved opening 32. The second sealing ring 33 is tightly attached to the piston rod 2 to prevent the oil in the second chamber 7 from leaking to the outside through the piston rod 2.

[0042] As a preferred embodiment of the present invention, the outer peripheral wall of the cylinder head 3 is provided with a third reserved opening 34, and a third sealing ring 35 is installed in the third reserved opening 34.

[0043] In this embodiment, the cylinder head 3 has a third reserved opening 34 on its peripheral wall, and a third sealing ring 35 is installed in the third reserved opening 34. The third sealing ring 35 is in close contact with the inner wall of the cylinder body 1 and works in conjunction with the second sealing ring 33 to ensure that the oil does not leak from the connection between the cylinder body 1 and the cylinder head 3.

[0044] The principle of this utility model is as follows: During installation, the first sealing ring 24 is first installed into the first reserved opening 23, and then the piston rod 2 is installed into the cylinder body 1. Then, the second sealing ring 33 and the third sealing ring 35 are installed into the second reserved opening 32 and the third reserved opening 34. Then, the multiple sliders 31 on the outer peripheral wall of the cylinder head 3 are aligned with the multiple mounting grooves 11 on the inner wall of the cylinder body 1 and inserted. When the cylinder head 3 is in close contact with the cylinder body 1, the sliders 31 are installed at the end of the mounting grooves 11. Then, the cylinder head 3 is rotated so that the sliders 31 slide into the sliding grooves 12 to complete the quick positioning. Then, the installation can be completed by installing bolts 81 in the threaded holes 8, which is convenient and efficient.

[0045] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A new type of press-on cylinder comprising a cylinder body, a piston rod located in the cylinder body, and a cylinder cover at the bottom of the cylinder body, characterized in that: The bottom inner circumferential wall of the cylinder is provided with a plurality of installation grooves, and the tail ends of the installation grooves are connected with sliding grooves; the outer circumferential wall of the cylinder cover is provided with a plurality of sliding blocks matched with the installation grooves, and the sliding blocks are inserted into the installation grooves and movably connected in the sliding grooves by rotating the cylinder cover; The bottom inner circumferential wall of the cylinder is provided with a plurality of installation grooves, and the tail ends of the installation grooves are connected with sliding grooves; the outer circumferential wall of the cylinder cover is provided with a plurality of sliding blocks matched with the installation grooves, and the sliding blocks are inserted into the installation grooves and movably connected in the sliding grooves by rotating the cylinder cover; 2. A novel press-on cylinder as claimed in claim 1, characterized in that: The one end of the piston rod in the cylinder is provided with a rod head, the top end of the rod head is a first taper surface, the top end of the cylinder cover is a second taper surface, the first taper surface is in contact with the inner wall of the cylinder, and the upper part of the first taper surface is a first chamber; the bottom end of the rod head and the second taper surface form a second chamber.

3. A novel press-on cylinder as claimed in claim 2, characterized in that: The top of the cylinder is provided with a first oil port connected to the first chamber, and a first oil pipe is installed in the first oil port.

4. A novel press-on cylinder as claimed in claim 2, wherein: The second taper surface is provided with a second oil port connected to the second chamber, and a second oil pipe is installed in the second oil port.

5. A novel press-on cylinder as claimed in claim 2, characterized in that: The contact part between the rod head circumferential wall and the cylinder circumferential wall is provided with a first reserved port, and a first sealing ring is installed in the first reserved port.

6. A novel press-on cylinder as claimed in claim 1, characterized by: The inner circumferential wall of the cylinder cover is provided with a second reserved port, and a second sealing ring is installed in the second reserved port.

7. A novel press-on cylinder as claimed in claim 1, wherein: The outer circumferential wall of the cylinder cover is provided with a third reserved port, and a third sealing ring is installed in the third reserved port.

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