CN219176679U

CN219176679U - Hydraulic cylinder piston convenient to change

Info

Publication number: CN219176679U
Application number: CN202222563485.8U
Authority: CN
Inventors: 王树亮; 高红卫; 王芝波
Original assignee: Jinan Jintiandi Machinery Co ltd
Current assignee: Jinan Jintiandi Machinery Co ltd
Priority date: 2022-09-27
Filing date: 2022-09-27
Publication date: 2023-06-13
Anticipated expiration: 2032-09-27

Abstract

The utility model discloses a hydraulic cylinder piston convenient to replace, which belongs to the technical field of hydraulic cylinders and comprises a piston main body, wherein the bottom of the piston main body is fixedly connected with a butt joint disc, the bottom of the butt joint disc is fixedly connected with a fixing seat, the outer side of the fixing seat is movably connected with a sealing gasket, the bottom of the fixing seat is in threaded connection with a screw column, the top of the piston main body is respectively provided with a mounting port and a screw port, the piston main body is fixedly connected with a fixing sleeve through the screw port, the center of the top of the fixing sleeve is provided with a through port, the inner side of the through port is movably connected with a piston rod, the bottom end of the piston rod is in threaded connection with a chassis, and the top of the fixing sleeve is in threaded connection with a fixing screw.

Description

Hydraulic cylinder piston convenient to change

Technical Field

The utility model relates to the technical field of hydraulic cylinders, in particular to a hydraulic cylinder piston convenient to replace.

Background

The hydraulic cylinder is a hydraulic executive component which converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion), the structure is simple, the work is reliable, a speed reducing device can be omitted when the hydraulic cylinder is used for realizing reciprocating motion, and the hydraulic cylinder does not have transmission gaps and moves stably, so the hydraulic cylinder is widely applied to hydraulic systems of various machines, and the output force of the hydraulic cylinder is in direct proportion to the effective area of a piston and the pressure difference on two sides of the piston; the hydraulic cylinder basically consists of a cylinder barrel, a cylinder cover, a piston rod, a sealing device, a buffer device and an exhaust device, wherein the buffer device and the exhaust device are required by other devices according to specific application occasions, the piston of the hydraulic cylinder is a sealing part in the hydraulic cylinder,

the prior art publication No. CN202118029U provides a piston of a hydraulic oil cylinder, and the piston of the hydraulic oil cylinder saves materials and reduces cost by hollowing out the piston body; meanwhile, the piston body is convenient to replace; furthermore, the copper layer is electroplated on the outer surface of the piston body, so that the wear resistance of the piston is greatly improved, but the existing hydraulic cylinder piston is inconvenient to replace, and because the piston and the piston rod are usually formed by casting molten iron at one time, when the piston needs to be replaced, the piston needs to be cut off, re-welded and then polished, so that the problem of time and labor waste is caused when the piston is replaced.

Disclosure of Invention

1. Technical problem to be solved

The utility model aims to provide a hydraulic cylinder piston convenient to replace, so as to solve the problem that the hydraulic cylinder piston is inconvenient to replace in the background technology.

2. Technical proposal

The utility model provides a hydraulic cylinder piston convenient to change, includes the piston main part, the bottom fixedly connected with butt joint dish of piston main part, the bottom fixedly connected with fixing base of butt joint dish, the outside swing joint of fixing base has sealed the pad, the bottom threaded connection of fixing base has the screw post, installing port and screw socket have been seted up respectively at the top of piston main part, the piston main part passes through screw socket fixedly connected with fixed cover, the through-hole has been seted up at the centre position of the top of fixed cover, the inboard swing joint of through-hole has the piston rod, the bottom threaded connection of piston rod has the chassis, the top threaded connection of fixed cover has the fixed screw.

As an alternative scheme of the technical scheme, the fixing seat is fixedly connected with the butt joint disc through a screw column.

As an alternative of the technical scheme of the application, the fixing sleeve is fixedly connected with the piston main body through a fixing screw and a screw.

As an alternative of the technical scheme of the application, the inner diameter of the mounting port is matched with the diameter of the chassis, and the chassis is positioned in the mounting port.

As an alternative scheme of this application technical scheme, the piston rod runs through the opening of activity in fixed cover top, the diameter and the opening internal diameter looks adaptation of piston rod.

As an alternative of the technical scheme of the application, the fixing screws are four, and the four fixing screws are respectively arranged at equal intervals.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

1. this application technical scheme is through the piston main part, the butt joint dish and the fixed cover that set up, this kind of hydraulic cylinder piston is when changing, the staff uses the instrument to take out the fixed screw from fixed the cover, and fixed cover is not fixed the back of screw, the fixed cover will break away from the piston main part, staff upwards mentions the piston rod this moment, piston rod and chassis will drive fixed cover and shift out piston main part and installing port, because chassis and piston rod are threaded connection, staff rotatable chassis is dismantled from the piston rod, then take out can from the piston rod, when needs are installed, the staff only need insert the piston rod in the opening of fixed cover, install the chassis again on the piston rod, then place the chassis in the installing port, and fasten the fixed screw alignment screw again, and fixed cover and piston main part will extrude the chassis from top to bottom, thereby firmly fix the piston rod, install this kind of mode simultaneously also can directly change the piston rod, the hydraulic cylinder piston is changed to the staff of being convenient for this kind of still labour saving and time saving.

Drawings

FIG. 1 is a schematic view of the overall structure of the present utility model;

FIG. 2 is a partially exploded view of the piston body and anchor block of the present utility model;

FIG. 3 is a partially exploded schematic view of the piston body and piston rod of the present utility model;

fig. 4 is a cross-sectional view of the piston body of the present utility model.

The reference numerals in the figures illustrate: 1. a piston rod; 101. a chassis; 2. a fixed sleeve; 201. a through port; 3. a set screw; 4. a piston body; 401. a butt joint disc; 402. a mounting port; 403. a screw; 5. a sealing gasket; 6. a fixing seat; 7. and (5) a screw column.

Detailed Description

The utility model provides a technical scheme that:

as shown in fig. 1, a hydraulic cylinder piston convenient to change, including piston main part 4, the bottom fixedly connected with docking tray 401 of piston main part 4, the bottom fixedly connected with fixing base 6 of docking tray 401, the outside swing joint of fixing base 6 has sealed pad 5, the bottom threaded connection of fixing base 6 has screw post 7, installation mouth 402 and screw 403 have been seted up respectively at the top of piston main part 4, piston main part 4 passes through screw 403 fixedly connected with fixed cover 2, the through-hole 201 has been seted up at the top centre position of fixed cover 2, the inboard swing joint of through-hole 201 has piston rod 1, the bottom threaded connection of piston rod 1 has chassis 101, the top threaded connection of fixed cover 2 has set screw 3.

In this embodiment, during installation, a worker only needs to insert the piston rod 1 into the through hole 201 of the fixing sleeve 2, install the chassis 101 on the piston rod 1, then place the chassis 101 into the installation hole 402, and fasten the fixing screw 3 in alignment with the screw hole 403, and the fixing sleeve 2 and the piston main body 4 press the chassis 101 up and down, so as to firmly fix the piston rod 1.

In some technical solutions, as shown in fig. 1, 2, 3 and 4, the fixing seat 6 is fixedly connected with the docking plate 401 through a screw post 7.

In this embodiment, when installing the gasket 5, the worker installs the gasket 5 on the fixing base 6, then installs the fixing base 6 on the docking plate 401, and uses the screw post 7 to fasten, and simultaneously the fixing base 6 and the piston main body 4 will squeeze the gasket 5 up and down, so that the gasket 5 can be firmly fixed and sealed on the fixing base 6 and the piston main body 4.

In some embodiments, as shown in fig. 1, 2, 3 and 4, the fixing sleeve 2 is fixedly connected to the piston body 4 by a fixing screw 3 and a screw hole 403.

In the present embodiment, the fixing screw 3 is removed from the fixing sleeve 2 by using a tool, and the fixing sleeve 2 is separated from the piston main body 4 after the fixing sleeve 2 is not fixed by the fixing screw 3.

In some embodiments, as shown in fig. 3 and 4, the inner diameter of the mounting opening 402 is adapted to the diameter of the chassis 101, and the chassis 101 is located inside the mounting opening 402.

In this embodiment, when the piston is replaced, the operator can conveniently take out the chassis 101 from the mounting port 402, and the fixing sleeve 2 and the piston main body 4 can press the chassis 101 up and down better to fix.

In some technical solutions, as shown in fig. 1, 2, 3 and 4, the piston rod 1 penetrates through a through hole 201 moving at the top of the fixed sleeve 2, and the diameter of the piston rod 1 is adapted to the inner diameter of the through hole 201.

In this embodiment, the piston rod 1 is conveniently taken out of the fixed sleeve 2 by a worker when the worker replaces the piston.

In some technical solutions, as shown in fig. 1, 2, 3 and 4, four fixing screws 3 are provided, and the four fixing screws 3 are respectively arranged at equal intervals.

In this embodiment, the fixing sleeve 2 is easily moved out of the piston body 4 by a worker through the fixing screw 3, and the fixing sleeve 2 is also easily mounted on the piston body 4.

As shown in fig. 1, when the hydraulic cylinder piston is replaced, a worker uses a tool to take out the fixing screw 3 from the fixing sleeve 2, the fixing sleeve 2 is separated from the piston main body 4 after the fixing sleeve 2 is not fixed by the fixing screw 3, at this time, the worker lifts the piston rod 1 upwards, the piston rod 1 and the chassis 101 drive the fixing sleeve 2 to move out of the piston main body 4 and the mounting port 402, because the chassis 101 is in threaded connection with the piston rod 1, the worker can rotate the chassis 101 to detach from the piston rod 1, then take out the fixing sleeve 2 from the piston rod 1, when the hydraulic cylinder piston is required to be mounted, the worker only needs to insert the piston rod 1 into the through port 201 of the fixing sleeve 2, then mount the chassis 101 on the piston rod 1, then place the chassis 101 into the mounting port 402, and fasten the fixing screw 3 to the screw port 403, and the chassis 101 is pressed up and down by the fixing sleeve 2 and the piston main body 4, so that the piston rod 1 is firmly fixed, and the piston rod 1 can be directly replaced by the method.

Claims

1. The utility model provides a hydraulic cylinder piston convenient to change, includes piston main part (4), its characterized in that: the novel piston comprises a piston body (4), wherein a butt joint disc (401) is fixedly connected to the bottom of the piston body (4), a fixing seat (6) is fixedly connected to the bottom of the butt joint disc (401), a sealing gasket (5) is movably connected to the outer side of the fixing seat (6), a screw column (7) is connected to the bottom of the fixing seat (6) in a threaded mode, a mounting opening (402) and a screw opening (403) are respectively formed in the top of the piston body (4), a fixing sleeve (2) is fixedly connected to the piston body (4) through the screw opening (403), a through opening (201) is formed in the center of the top of the fixing sleeve (2), a piston rod (1) is movably connected to the inner side of the through opening (201), a chassis (101) is connected to the bottom end of the piston rod (1), and a fixing screw (3) is connected to the top of the fixing sleeve (2) in a threaded mode.

2. The easy to replace hydraulic ram piston of claim 1, wherein: the fixing seat (6) is fixedly connected with the butt joint disc (401) through a screw column (7).

3. The easy to replace hydraulic ram piston of claim 1, wherein: the fixed sleeve (2) is fixedly connected with the piston main body (4) through the fixed screw (3) and the screw port (403).

4. The easy to replace hydraulic ram piston of claim 1, wherein: the inner diameter of the mounting opening (402) is matched with the diameter of the chassis (101), and the chassis (101) is positioned in the mounting opening (402).

5. The easy to replace hydraulic ram piston of claim 1, wherein: the piston rod (1) penetrates through a through hole (201) which is movably arranged at the top of the fixed sleeve (2), and the diameter of the piston rod (1) is matched with the inner diameter of the through hole (201).

6. The easy to replace hydraulic ram piston of claim 1, wherein: the fixing screws (3) are arranged in four, and the four fixing screws (3) are respectively arranged at equal intervals.