Hydraulic oil cylinder capable of achieving high-speed and low-speed functions

Abstract

The utility model discloses a hydraulic oil cylinder capable of realizing fast and slow speed function, which relates to the technical field of hydraulic oil cylinders, and comprises a hydraulic oil cylinder body, a plurality of protective rods are uniformly arranged at the outer end of the hydraulic oil cylinder body, a throttle valve is movably arranged on one side of the hydraulic oil cylinder body, a controller is fixedly arranged on one side of the throttle valve, and the controller is connected with the hydraulic oil cylinder body. A mounting assembly is arranged at the top of the controller, and a connecting air pipe is fixedly mounted on one side of the mounting assembly. The hydraulic oil cylinder has the advantages that the throttle valve, the controller and the flow valve are matched, the throttle valve limits the flow of the hydraulic valve so as to control the speed of the hydraulic oil cylinder, the flow and different working speeds can be controlled through combined use of the two valves, the hydraulic oil cylinder can achieve the high-speed and low-speed functions, and the working efficiency of the hydraulic oil cylinder is improved. And through cooperation of the hydraulic damper and the damping block, the situation that the cylinder body is damaged due to the fact that the moving speed of the piston rod is too high is avoided, and therefore the service life of the hydraulic cylinder is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic oil cylinders, in particular to a hydraulic oil cylinder capable of realizing fast and slow speed functions. Background Art

[0002] The hydraulic cylinder absorbs and discharges the substances to be processed through its own function. The hydraulic cylinder converts hydraulic energy into mechanical energy and performs linear reciprocating motion.

[0003] Chinese patent CN217539176U proposes a hydraulic cylinder with an external protective structure, including a hydraulic cylinder, an outer guard plate and a hydraulic rod, wherein the outer side of one end of the outer guard plate close to the center of the hydraulic cylinder is fixedly connected to a support plate, the other end of the support plate is fixedly connected to the outer side of an inner guard plate, the inner guard plate is slidably connected to the hydraulic cylinder, the outer side of the outer guard plate is fixedly connected to a sleeve, the inner side of the sleeve is slidably connected to a positioning rod, through the outer guard plate, support plate, inner guard plate and positioning rod, when the hydraulic cylinder is impacted by foreign objects in use, the foreign objects abut against the outer guard plate, and then through the connecting plate, the connecting plate drives the buffer plate to prevent the foreign objects from buffering the hydraulic cylinder, so that the outer guard plate slides on the hydraulic cylinder, the foreign objects are forced to deviate through the arc-shaped outer guard plate, and mechanically buffered by the positioning rod in the sleeve, and the impact of foreign objects is reduced by the double-layer guard plate.

[0004] The above scheme uses mechanical buffering through the positioning rod in the sleeve, reduces the impact of foreign objects through the double-layer guard plate, and forces foreign objects to shift through the arc-shaped outer guard plate, thereby protecting the hydraulic cylinder. However, the above scheme is not convenient for adjusting the speed and cannot be adjusted according to the load, which can easily cause equipment damage and reduce the practicality of the hydraulic cylinder. Utility Model Content

[0005] The purpose of the utility model is to provide a hydraulic cylinder that can realize fast or slow speed functions in order to solve the above-mentioned problems. The device utilizes the cooperation between a throttle valve, a controller and a flow valve to control the speed of the hydraulic cylinder. The combined use of the two valves can control the flow and different working speeds, so that the hydraulic cylinder can realize fast or slow speed functions, solving the problems mentioned in the background technology.

[0006] In order to solve the above problems, the utility model provides a technical solution:

[0007] A hydraulic cylinder capable of realizing fast and slow speed functions comprises a hydraulic cylinder body, a plurality of protective rods are evenly installed on the outer end of the hydraulic cylinder body, a throttle valve is movably installed on one side of the hydraulic cylinder body, a controller is fixedly installed on one side of the throttle valve, a mounting assembly is provided on the top of the controller, a connecting air pipe is fixedly installed on one side of the mounting assembly, the connecting air pipe is fixedly connected to the hydraulic cylinder body, and a flow valve is fixedly installed on one side of the throttle valve.

[0008] As a preferred solution of the utility model, an exhaust pipe is fixedly installed on one side of the hydraulic cylinder body, and a piston rod is slidably connected inside the hydraulic cylinder body, and the piston rod extends to the outer end of the hydraulic cylinder body.

[0009] As a preferred solution of the utility model, a piston head is installed at one end of the piston rod and located in the hydraulic cylinder body, a limit plate is fixedly installed on the top of the hydraulic cylinder body, and a shock absorbing assembly is arranged below the piston head and located inside the hydraulic cylinder body.

[0010] As a preferred solution of the utility model, the installation assembly includes a first threaded tube, the first threaded tube is fixedly installed on the top of the throttle valve, a connecting tube is fixedly installed on the top of the first threaded tube, and a sealing gasket is fixed on the outer end of the connecting tube.

[0011] As a preferred solution of the utility model, an L-shaped splicing tube is movably installed on the top of the connecting pipe, a sleeve is fixedly installed on the bottom of the L-shaped splicing tube, the sleeve and the connecting pipe are movably connected, the outer end of the sleeve is threadedly connected with a connecting nut, and the connecting nut is threadedly connected to the first threaded pipe.

[0012] As a preferred solution of the utility model, the shock absorbing assembly includes a hydraulic damper, the hydraulic damper is fixedly installed inside the hydraulic cylinder body, a shock absorbing plate is fixedly installed on the top of the hydraulic damper, and a shock absorbing block is fixedly installed above the shock absorbing plate and at the bottom of the piston head.

[0013] The beneficial effects of the utility model are as follows: through the cooperation between the throttle valve, the controller and the flow valve, the throttle valve limits the flow of the hydraulic valve, thereby controlling the speed of the hydraulic cylinder. The combined use of the two valves can control the flow and different working speeds, so that the hydraulic cylinder can realize fast and slow speed functions. Through the cooperation between the hydraulic damper and the shock absorbing block, the piston rod is prevented from moving too fast to cause damage to the cylinder body, thereby improving the service life of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] For ease of explanation, the present invention is described in detail by the following specific implementations and drawings.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 It is a schematic diagram of the overall internal structure of the utility model;

[0017] Figure 3 It is a schematic diagram of the structure of the installation assembly of the utility model;

[0018] Figure 4 This utility model Figure 3 Enlarged image of the middle circle.

[0019] In the figure: 1. Hydraulic cylinder body; 2. Protection rod; 3. Throttle valve; 4. Controller; 5. Mounting assembly; 51. First threaded pipe; 52. Connecting pipe; 53. Sealing gasket; 54. L-shaped splicing pipe; 55. Sleeve; 56. Connecting nut; 6. Connecting air pipe; 7. Flow valve; 8. Exhaust pipe; 9. Piston rod; 10. Piston head; 11. Limiting plate; 12. Shock-absorbing assembly; 121. Hydraulic damper; 122. Shock-absorbing plate; 123. Shock-absorbing block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] Example:

[0022] like Figure 1 and Figure 3 As shown, the utility model provides a technical solution: a hydraulic cylinder capable of realizing a fast and slow speed function, comprising a hydraulic cylinder body 1, a plurality of protective rods 2 are evenly installed on the outer end of the hydraulic cylinder body 1, a throttle valve 3 is movably installed on one side of the hydraulic cylinder body 1, the main function of the throttle valve 3 is to adjust the flow rate, and the flow rate of the medium is limited and controlled by reducing the cross-sectional area of ​​the flow channel, so that the purpose of regulating the flow of the medium can be achieved, a controller 4 is fixedly installed on one side of the throttle valve 3, if it is necessary to speed up the lifting speed, the controller 4 is used to appropriately reduce the restriction degree of the throttle valve 3, and the flow is transmitted through the connecting air pipe 6, a mounting assembly 5 is arranged on the top of the controller 4, a connecting air pipe 6 is fixedly installed on one side of the mounting assembly 5, and the connecting air pipe 6 is fixedly connected to the hydraulic cylinder body 1, a flow valve 7 is fixedly installed on one side of the throttle valve 3, if it is necessary to slow down the lifting speed, the controller 4 is used to appropriately increase the restriction degree of the throttle valve 3, and the flow is transmitted through the connecting air pipe 6, and the flow valve 7 adjusts the flow rate by adjusting the throttle port area between the valve core and the valve body and the local resistance generated by it when the inlet and outlet pressure difference of the valve changes, thereby controlling the movement speed of the actuator.

[0023] like Figure 1 and Figure 2As shown, further, an exhaust pipe 8 is fixedly installed on one side of the hydraulic cylinder body 1, and a piston rod 9 is slidably connected to the inside of the hydraulic cylinder body 1. The piston rod 9 drives the piston head 10 to be adjusted inside the hydraulic cylinder body 1. The piston rod 9 extends to the outer end of the hydraulic cylinder body 1, and the piston head 10 is installed at one end of the piston rod 9 and located at the hydraulic cylinder body 1. A limiting plate 11 is fixedly installed on the top of the hydraulic cylinder body 1, and a shock absorbing assembly 12 is arranged below the piston head 10 and located inside the hydraulic cylinder body 1.

[0024] like Figure 3 and Figure 4 As shown, further, the installation component 5 includes a first threaded tube 51, the first threaded tube 51 is fixedly installed on the top of the throttle valve 3, a connecting tube 52 is fixedly installed on the top of the first threaded tube 51, and a sealing gasket 53 is fixed on the outer end of the connecting tube 52. First, an L-shaped splicing tube 54 is placed on the top of the connecting tube 52, and the connecting tube 52 is covered with a sleeve 55, and the connection at the connection is made tighter with a sealing gasket 53. An L-shaped splicing tube 54 is movably installed on the top of the connecting tube 52, and a sleeve 55 is fixedly installed on the bottom of the L-shaped splicing tube 54. The sleeve 55 and the connecting tube 52 are movably connected, and a connecting nut 56 is threadedly connected to the outer end of the sleeve 55. The connecting nut 56 is rotated, and the connecting nut 56 is adjusted downward at the outer end of the sleeve 55, and the first threaded tube 51 is adjusted to the outer end of the first threaded tube 51 for connection, and the connecting nut 56 is threadedly connected to the first threaded tube 51.

[0025] like Figure 3 and Figure 4 As shown, further, the shock absorbing assembly 12 includes a hydraulic damper 121, and the hydraulic damper 121 is fixedly installed inside the hydraulic cylinder body 1. When the hydraulic damper 121 is subjected to collision pressure, the kinetic energy is transferred to the piston through the plug and the acceleration spring, and a shock absorbing plate 122 is fixedly installed on the top of the hydraulic damper 121. When working, the piston rod 9 drives the piston head 10 to adjust inside the hydraulic cylinder body 1, and the piston head 10 is adjusted downward. The piston head 10 drives the shock absorbing block 123 to adjust downward, and the shock absorbing block 123 contacts the shock absorbing plate 122. A shock absorbing block 123 is fixedly installed above the shock absorbing plate 122 and at the bottom of the piston head 10, driving the shock absorbing plate 122 to adjust downward, and the shock absorbing plate 122 uses the hydraulic damper 121 to buffer the pressure.

[0026] Working principle: when connection is required, first place the L-shaped splicing pipe 54 on top of the connecting pipe 52, cover the connecting pipe 52 with the sleeve 55, use the sealing gasket 53 to make the connection more secure, turn the connecting nut 56, and adjust the connecting nut 56 downward at the outer end of the sleeve 55, adjust the first threaded pipe 51 to the outer end of the first threaded pipe 51 for connection, when working, the piston head 10 is adjusted downward, the piston head 10 drives the shock absorbing block 123 to adjust downward, the shock absorbing block 123 contacts the shock absorbing plate 122, drives the shock absorbing plate 122 to adjust downward, and the shock absorbing plate 122 uses the hydraulic damper 121 to buffer the pressure. If it is necessary to speed up the lifting speed, use the controller 4 to appropriately reduce the restriction degree of the throttle valve 3, and transmit it through the connecting air pipe 6. If it is necessary to slow down the lifting speed, use the controller 4 to appropriately increase the restriction degree of the throttle valve 3, and transmit it through the connecting air pipe 6.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic cylinder capable of realizing fast and slow speed functions, characterized in that: The invention comprises a hydraulic cylinder body (1), wherein a plurality of protective rods (2) are evenly mounted on the outer end of the hydraulic cylinder body (1), a throttle valve (3) is movably mounted on one side of the hydraulic cylinder body (1), a controller (4) is fixedly mounted on one side of the throttle valve (3), a mounting assembly (5) is arranged on the top of the controller (4), a connecting air pipe (6) is fixedly mounted on one side of the mounting assembly (5), the connecting air pipe (6) is fixedly connected to the hydraulic cylinder body (1), and a flow valve (7) is fixedly mounted on one side of the throttle valve (3).

2. A hydraulic cylinder capable of realizing fast and slow speed functions according to claim 1, characterized in that: An exhaust pipe (8) is fixedly mounted on one side of the hydraulic cylinder body (1), and a piston rod (9) is slidably connected inside the hydraulic cylinder body (1), and the piston rod (9) extends to the outer end of the hydraulic cylinder body (1).

3. A hydraulic cylinder capable of realizing fast and slow speed functions according to claim 2, characterized in that: A piston head (10) is installed at one end of the piston rod (9) and located on the hydraulic cylinder body (1), a limit plate (11) is fixedly installed on the top of the hydraulic cylinder body (1), and a shock absorbing component (12) is provided below the piston head (10) and located inside the hydraulic cylinder body (1).

4. The hydraulic cylinder capable of realizing fast and slow speed functions according to claim 1, characterized in that: The mounting assembly (5) comprises a first threaded tube (51), the first threaded tube (51) being fixedly mounted on the top of the throttle valve (3), a connecting tube (52) being fixedly mounted on the top of the first threaded tube (51), and a sealing gasket (53) being fixed on the outer end of the connecting tube (52).

5. The hydraulic cylinder capable of realizing fast and slow speed functions according to claim 4, characterized in that: An L-shaped splicing pipe (54) is movably mounted on the top of the connecting pipe (52), a sleeve (55) is fixedly mounted on the bottom of the L-shaped splicing pipe (54), the sleeve (55) and the connecting pipe (52) are movably connected, a connecting nut (56) is threadedly connected to the outer end of the sleeve (55), and the connecting nut (56) is threadedly connected to the first threaded pipe (51).

6. The hydraulic cylinder capable of realizing fast and slow speed functions according to claim 3, characterized in that: The shock absorbing assembly (12) comprises a hydraulic damper (121), the hydraulic damper (121) is fixedly installed inside the hydraulic cylinder body (1), a shock absorbing plate (122) is fixedly installed on the top of the hydraulic damper (121), and a shock absorbing block (123) is fixedly installed above the shock absorbing plate (122) and at the bottom of the piston head (10).

Images