CN219492749U

CN219492749U - Lifting oil cylinder

Info

Publication number: CN219492749U
Application number: CN202320890526.6U
Authority: CN
Inventors: 王宏义; 刘俊丰; 王志江; 王云龙
Original assignee: Weihai Kaite Hydraulic Technology Co ltd
Current assignee: Weihai Kaite Hydraulic Technology Co ltd
Priority date: 2023-04-17
Filing date: 2023-04-17
Publication date: 2023-08-08
Anticipated expiration: 2033-04-17

Abstract

The utility model belongs to the technical field of oil cylinders, and particularly relates to a lifting oil cylinder which comprises a cylinder body, wherein a piston rod is connected in a sliding manner in the cylinder body, a fixing mechanism is arranged at the upper end of the cylinder body and used for clamping and fixing the piston rod, and power mechanisms are arranged at the side ends and the upper end of the fixing mechanism and used for providing power for the fixing mechanism. According to the hydraulic oil cylinder, the power mechanism and the fixing mechanism are arranged, when the piston rod rises to a certain height, the power mechanism provides power for the fixing mechanism, and at the moment, the fixing mechanism can be driven to clamp and fix the piston rod, so that the piston rod can be prevented from falling.

Description

Lifting oil cylinder

Technical Field

The utility model belongs to the technical field of oil cylinders, and particularly relates to a lifting oil cylinder.

Background

The oil cylinder is a hydraulic cylinder, and the hydraulic cylinder is a linear motion type executing element with output force being in direct proportion to the effective area of the piston and the pressure difference on two sides of the piston. Its function is to convert hydraulic energy into mechanical energy. The hydraulic cylinder inputs the flow and pressure of fluid, and outputs the linear motion speed and force. The piston of the hydraulic cylinder can perform linear reciprocating motion, and the output linear displacement is limited. The hydraulic cylinder is an energy conversion device that converts hydraulic energy into mechanical energy for reciprocating rectilinear motion. And the lifting oil cylinder is used for driving the device to lift.

When the existing lifting oil cylinder is lifted, the piston rod is driven to move inside the oil cylinder by extrusion of hydraulic oil, so that the lifting purpose is achieved, but stable support of the piston rod cannot be achieved by extrusion of hydraulic oil alone, when an oil pump does not work and a valve is damaged, the piston rod can slowly move inside the oil cylinder under the action of gravity, and the piston rod cannot be stably supported.

Disclosure of Invention

The utility model aims to provide a lifting oil cylinder, which can enable the support of a piston rod to be more stable and reduce damage to the oil cylinder caused by overlarge pressure.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a lift cylinder, including the cylinder body, sliding connection has the piston rod in the cylinder body, the cylinder body upper end is provided with fixed establishment, fixed establishment is used for the centre gripping fixed piston rod, fixed establishment side and upper end are provided with power unit, power unit is used for providing power for fixed establishment.

Optionally, the cylinder body periphery fixedly connected with connecting nozzle, the connecting nozzle is provided with two, and the symmetric distribution is in the cylinder body upper and lower both sides.

Optionally, fixed establishment includes fixing base, first slide hole, extrusion piece and slide bar, cylinder body upper end fixedly connected with fixing base, sliding connection between fixing base and the piston rod, first slide hole has been seted up to the fixing base circumference, sliding connection has the extrusion piece in the first slide hole, extrusion piece upper end fixedly connected with slide bar.

Optionally, a limiting groove is formed in the side face of the first sliding hole, a limiting block is connected in a sliding mode in the limiting groove, and the limiting block is fixedly connected with the extrusion block.

Optionally, one end of the extrusion block, which is close to the piston rod, is in an arc shape, and a rubber layer is paved at the arc end of the extrusion block.

Optionally, power unit includes bearing bracket, worm, mount, motor, worm wheel and second slide hole, fixing base periphery fixedly connected with bearing bracket, bearing bracket internal rotation is connected with the worm, bearing bracket front end fixedly connected with mount, mount upper end fixedly connected with motor, the output and the worm fixed connection of motor, the worm meshing has the worm wheel, rotate between worm wheel and the fixing base and be connected, the second slide hole has been seted up to the worm wheel up end, sliding connection between second slide hole and the slide bar.

Compared with the prior art, the utility model has the following beneficial effects:

according to the hydraulic oil cylinder, the power mechanism and the fixing mechanism are arranged, when the piston rod rises to a certain height, the power mechanism provides power for the fixing mechanism to drive the fixing mechanism to clamp the fixed piston rod, so that the piston rod is prevented from falling.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the whole structure of the first view angle of the present utility model;

FIG. 2 is a schematic diagram of the overall structure of the second view angle of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic view of the split structure of the present utility model;

fig. 5 is an enlarged schematic view of the structure of fig. 4B according to the present utility model.

In the figure: 1. a cylinder; 2. a connecting nozzle; 3. a fixing mechanism; 301. a fixing seat; 302. a first slide hole; 303. extruding a block; 304. a slide bar; 4. a power mechanism; 401. a bearing bracket; 402. a worm; 403. a fixing frame; 404. a motor; 405. a worm wheel; 406. a second slide hole; 5. a piston rod; 6. a limit groove; 7. and a limiting block.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Referring to fig. 1 to 5, a lift cylinder according to an embodiment of the present utility model will now be described. The lifting oil cylinder comprises a cylinder body 1, a piston rod 5 is connected in a sliding manner in the cylinder body 1, a fixing mechanism 3 is arranged at the upper end of the cylinder body 1, the fixing mechanism 3 is used for clamping and fixing the piston rod 5, a power mechanism 4 is arranged at the side end and the upper end of the fixing mechanism 3, and the power mechanism 4 is used for providing power for the fixing mechanism 3; the circumference of the cylinder body 1 is fixedly connected with connecting nozzles 2, and the connecting nozzles 2 are arranged in two and symmetrically distributed on the upper side and the lower side of the cylinder body 1.

Specifically, the oil pipe is connected with the cylinder body 1 through the connecting nozzle 2, then the oil pump is started to feed the oil pipe with hydraulic oil, at the moment, the hydraulic oil can enter the cylinder body 1 and then drive the piston rod 5 to lift in the cylinder, when the piston rod 5 reaches a set position, the power mechanism 4 provides power for the fixing mechanism 3 and drives the fixing mechanism 3 to clamp the fixed piston rod 5, so that the piston rod 5 is prevented from falling, and compared with the traditional mode of only using the hydraulic oil to support the piston rod 5, the hydraulic oil pump can enable the support of the piston rod 5 to be more stable, and meanwhile, damage to the cylinder caused by overlarge pressure is also reduced.

The fixing mechanism 3 comprises a fixing seat 301, a first sliding hole 302, an extrusion block 303 and a sliding rod 304, wherein the upper end of the cylinder body 1 is fixedly connected with the fixing seat 301, the fixing seat 301 is in sliding connection with the piston rod 5, the first sliding hole 302 is formed in the circumferential surface of the fixing seat 301, the extrusion block 303 is in sliding connection with the sliding rod 304 in the first sliding hole 302, and the upper end of the extrusion block 303 is fixedly connected with the sliding rod 304.

The limiting groove 6 is formed in the side face of the first sliding hole 302, the limiting block 7 is connected in the limiting groove 6 in a sliding mode, the limiting block 7 is fixedly connected with the extrusion block 303, and in operation, the movement of the extrusion block 303 can be more stable through the limiting groove 6 and the limiting block 7.

The one end that extrusion piece 303 is close to piston rod 5 is the circular arc shape, and the one deck rubber layer has been laid to the circular arc end of extrusion piece 303, during operation, because the one end that extrusion piece 303 is close to piston rod 5 is the circular arc shape, just so can increase the area of contact with piston rod 5 to can be more stable fix piston rod 5.

The power mechanism 4 comprises a bearing frame 401, a worm 402, a fixing frame 403, a motor 404, a worm wheel 405 and a second sliding hole 406, the bearing frame 401 is fixedly connected to the circumference of the fixing seat 301, the worm 402 is rotationally connected to the bearing frame 401, the fixing frame 403 is fixedly connected to the front end of the bearing frame 401, the motor 404 is fixedly connected to the upper end of the fixing frame 403, the output end of the motor 404 is fixedly connected with the worm 402, the worm 402 is meshed with the worm wheel 405, the worm wheel 405 is rotationally connected with the fixing seat 301, the upper end face of the worm wheel 405 is provided with the second sliding hole 406, the second sliding hole 406 is slidingly connected with the sliding rod 304, and when the motor 404 is started, the worm wheel 402 can be driven to rotate so as to drive the worm wheel 405 to rotate, and the sliding rod 304 can be driven to slide in the second sliding hole 406 along with the rotation of the worm wheel 405, so that power can be provided for the movement of the extrusion block 303.

Working principle:

when the hydraulic oil cylinder is used, the oil pipe is connected with the cylinder body 1 through the connecting nozzle 2, then the oil pump is started to feed hydraulic oil, the hydraulic oil enters the cylinder body 1 and drives the piston rod 5 to lift in the oil cylinder, when the piston rod 5 reaches a certain position, the motor 404 is started, the worm 402 is driven to rotate, the worm wheel 405 is driven to rotate, the sliding rod 304 is driven to slide in the second sliding hole 406 along with the rotation of the worm wheel 405, the extrusion block 303 is driven to slide in the first sliding hole 302 along with the movement of the sliding rod 304, the extrusion block 303 moves towards the piston rod 5, and the fixing of the piston rod 5 is realized, so that the piston rod 5 is prevented from moving downwards.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims

1. The utility model provides a lift cylinder, includes cylinder body (1), its characterized in that: the cylinder body (1) is connected with a piston rod (5) in a sliding mode, a fixing mechanism (3) is arranged at the upper end of the cylinder body (1), the fixing mechanism (3) is used for clamping and fixing the piston rod (5), a power mechanism (4) is arranged at the side end and the upper end of the fixing mechanism (3), and the power mechanism (4) is used for providing power for the fixing mechanism (3).

2. The lift cylinder of claim 1, wherein: the cylinder body (1) circumference fixedly connected with connecting mouth (2), connecting mouth (2) are provided with two, and the symmetric distribution is in cylinder body (1) upper and lower both sides.

3. The lift cylinder of claim 1, wherein: the fixing mechanism (3) comprises a fixing seat (301), a first sliding hole (302), an extrusion block (303) and a sliding rod (304), wherein the fixing seat (301) is fixedly connected with the upper end of the cylinder body (1), the fixing seat (301) is slidably connected with the piston rod (5), the first sliding hole (302) is formed in the circumferential surface of the fixing seat (301), the extrusion block (303) is slidably connected with the first sliding hole (302), and the sliding rod (304) is fixedly connected with the upper end of the extrusion block (303).

4. A lift cylinder as claimed in claim 3 wherein: the side of the first sliding hole (302) is provided with a limiting groove (6), a limiting block (7) is connected in a sliding manner in the limiting groove (6), and the limiting block (7) is fixedly connected with the extrusion block (303).

5. A lift cylinder as claimed in claim 3 wherein: one end of the extrusion block (303) close to the piston rod (5) is in an arc shape, and a rubber layer is paved at the arc end of the extrusion block (303).

6. A lift cylinder as claimed in claim 3 wherein: the power mechanism (4) comprises a bearing frame (401), a worm (402), a fixing frame (403), a motor (404), a worm wheel (405) and a second sliding hole (406), the circumference of the fixing seat (301) is fixedly connected with the bearing frame (401), the worm (402) is rotationally connected with the bearing frame (401), the front end of the bearing frame (401) is fixedly connected with the fixing frame (403), the upper end of the fixing frame (403) is fixedly connected with the motor (404), the output end of the motor (404) is fixedly connected with the worm (402), the worm (402) is meshed with the worm wheel (405), the worm wheel (405) is rotationally connected with the fixing seat (301), the second sliding hole (406) is formed in the upper end face of the worm wheel (405), and the second sliding hole (406) is slidingly connected with the sliding rod (304).