CN218325563U

CN218325563U - Mechanical self-locking oil cylinder

Info

Publication number: CN218325563U
Application number: CN202222275648.2U
Authority: CN
Inventors: 黎江勇; 孙利华; 涂仁林
Original assignee: Chongqing Dongchuang Machinery Co ltd
Current assignee: Chongqing Dongchuang Machinery Co ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-01-17
Anticipated expiration: 2032-08-29

Abstract

The utility model discloses a machinery auto-lock hydro-cylinder, including cylinder body, controller and fixer, two sets of fixers are installed to the inner wall of cylinder body, the hydraulic stem is installed to the outer wall of cylinder body, and the one end of hydraulic stem extends into the inside of cylinder body, two sets of controllers are installed to the inside roof of cylinder body, electric telescopic handle is installed to the inside roof of fixer. The utility model discloses an install the fixer and can conveniently adjust, the hydraulic stem removes and drives the sealed piece and remove, it removes to drive simultaneously and blocks the pole, block pole striking wedge afterwards, the wedge descends and drives the lifter decline, the spring shrink, when blockking that the pole crosses the wedge, the spring drives lifter and wedge and risees, to blockking the pole restriction, prevent to block pole and hydraulic stem shrink, realize self-locking function, when needing to adjust, electric telescopic handle extends and drives connecting plate and lifter decline, the hydraulic stem can shrink this moment, conveniently adjust, the flexibility of increase device.

Description

Mechanical self-locking oil cylinder

Technical Field

The utility model relates to a hydro-cylinder technical field specifically is a machinery auto-lock hydro-cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion). It has simple structure and reliable operation. When it is used to implement reciprocating motion, it can omit speed-reducing device, and has no transmission gap, and its motion is stable, so that it can be extensively used in various mechanical hydraulic systems. The output force of the hydraulic cylinder is in direct proportion to the effective area of the piston and the pressure difference between the two sides of the effective area; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder cover, a piston and a piston rod, a sealing device, a buffering device and an exhaust device. The self-locking phenomenon means that if the action line of the resultant force Q of the main force acting on the object is within the friction angle, no matter how large the force is, a full reaction force R is always balanced with the force, and the object is kept still, whereas if the action line of the resultant force Q of the main force is outside the friction angle, no matter how small the force is, the object cannot be kept balanced. This equilibrium condition, which is independent of the force magnitude and dependent on the friction angle, is called a self-locking condition, and the equilibrium phenomenon of the object under this condition is called a self-locking phenomenon. The resultant force R of the friction angle and the self-locking phenomenon normal reaction force N and the friction force F is called the total reaction force of the support surface to the object. I.e. the friction force F reaches a maximum value Fmax, the included angle a also reaches a maximum value b, which is called the friction angle.

The existing oil cylinder has the defects that:

patent document CN212360368U discloses a mechanical self-locking hydraulic oil cylinder, the claim of protection is that a piston rod is a hollow rod, and a ball screw is coaxially arranged in a cavity of the piston rod; the external thread connecting part of the piston rod is symmetrically provided with clamping grooves, the clamping sleeve is symmetrically provided with an upper clamping block and a lower clamping block, the upper clamping block and the lower clamping block are respectively clamped in the clamping grooves, and the piston and the clamping sleeve are tightly pressed on the piston rod through nut threads; the inner sides of the upper fixture block and the lower fixture block are respectively rotatably provided with at least 2 axially distributed balls, the ball screw is symmetrically provided with two axial V-shaped grooves, and the balls in the upper fixture block and the lower fixture block are respectively clamped in the V-shaped grooves on the ball screw; the stop block is fixedly arranged in the accommodating cavity of the cylinder bottom cover, the ball screw is fixedly provided with a movable stop block corresponding to the stop block, and two ends of the arc-shaped spring piece are respectively abutted against the movable stop block and the stop block. The utility model discloses simple structure is compact, and low in manufacturing cost realizes the locking of the full stroke of hydraulic cylinder's piston rod, stability and reliability that reinforcing hydraulic cylinder used "

When the majority of the existing devices are self-locked, the hydraulic rod cannot be adjusted according to the condition, so that the hydraulic rod cannot move, the extending length of the hydraulic rod needs to be adjusted, and the adjustment is not convenient enough.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a machinery auto-lock hydro-cylinder to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a mechanical self-locking oil cylinder comprises a cylinder body, a controller and two groups of fixing devices, wherein the two groups of fixing devices are arranged on the inner wall of the cylinder body;

a spring is arranged on the inner bottom wall of the fixer, a lifting rod is arranged on the top of the spring, the top of the lifting rod extends out of the top of the fixer, and a wedge-shaped block is arranged on the top end of the lifting rod;

the hydraulic stem is installed to the outer wall of cylinder body, and the one end of hydraulic stem extends into the inside of cylinder body, two sets of controllers are installed to the inside roof of cylinder body, electric telescopic handle is installed to the inside roof of fixer, and electric telescopic handle is located one side of lifter.

Preferably, the base is installed to the one end of cylinder body, and the cylinder cap is installed to the other end of cylinder body, and No. one pipe is installed to the outer wall of base.

Preferably, the top of cylinder cap is installed with No. two pipes.

Preferably, electric putter is installed to the inner wall of controller, and the closing plate is installed to electric putter's one end, and the one end of closing plate extends into the inside of No. one pipe, and the seal groove is installed to the inner wall of No. one pipe, and seal groove and closing plate gomphosis.

Preferably, the sealing block is installed to the one end of hydraulic stem, and two of hydraulic stem's outer wall are installed and are blockked the pole, and hydraulic stem's outer wall cover is equipped with sealed the pad, and the outer wall that seals up is connected with the inner wall of cylinder body.

Preferably, the connecting plate is installed to electric telescopic handle's bottom, and the outer wall of connecting plate and the outer wall connection of lifter.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model discloses an install the fixer and can conveniently adjust, the hydraulic stem removes and drives the sealing block and remove, drive simultaneously and block the pole and remove, block the pole striking wedge afterwards, the wedge descends and drives the lifter decline, the spring shrink, when blocking the pole and crossing the wedge, the spring drives lifter and wedge and risees, to blocking the restriction of pole, prevent to block pole and the shrink of hydraulic stem, realize self-locking function, when needing to adjust, electric telescopic handle extension drives connecting plate and lifter decline, the hydraulic stem can contract this moment, conveniently adjust, increase the flexibility of device;

2. the utility model discloses an install the controller and can realize adjusting the function of flexible speed, hydraulic oil gets into from a pipe, and the extrusion hydraulic stem removes, and lubricating oil flows out from No. two pipes, realizes the function of stretching out of hydraulic stem, otherwise a pipe flows out, and No. two pipe flows in can realize the shrink function, and when adjusting flexible speed, electric putter extension drives the gap between closing plate and the seal groove and diminishes to the flow velocity of hydraulic oil reduces, thereby the telescopic speed of hydraulic stem reduces, realizes regulatory function.

Drawings

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

fig. 2 is a schematic side view of the present invention;

FIG. 3 is a schematic view of a portion of the fastener of the present invention;

fig. 4 is a schematic structural diagram of a part of the controller of the present invention.

In the figure: 1. a cylinder body; 101. a base; 102. a cylinder cover; 2. a hydraulic lever; 201. a sealing block; 202. a blocking rod; 203. a gasket; 3. a first pipe; 301. a second pipe; 4. a controller; 401. a sealing groove; 402. an electric push rod; 403. sealing plates; 5. a holder; 501. a spring; 502. a lifting rod; 503. a wedge block; 6. an electric telescopic rod; 601. a connecting plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "both ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element to which the reference is made must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1, 2 and 3, a mechanical self-locking oil cylinder includes a cylinder body 1, a controller 4 and a fixer 5, two sets of fixers 5 are installed on an inner wall of the cylinder body 1, a spring 501 is installed on an inner bottom wall of the fixer 5, a lifting rod 502 is installed on a top of the spring 501, a top of the lifting rod 502 extends out of a top of the fixer 5, a wedge block 503 is installed on a top end of the lifting rod 502, a hydraulic rod 2 is installed on an outer wall of the cylinder body 1, one end of the hydraulic rod 2 extends into the cylinder body 1, two sets of controllers 4 are installed on an inner top wall of the cylinder body 1, an electric telescopic rod 6 is installed on an inner top wall of the fixer 5, the electric telescopic rod 6 is located on one side of the lifting rod 502, a sealing block 201 is installed on one end of the hydraulic rod 2, two blocking rods 202 are installed on an outer wall of the hydraulic rod 2, the outer wall cover of hydraulic stem 2 is equipped with sealed pad 203, and the outer wall of sealed pad 203 and the internal wall connection of cylinder body 1, connecting plate 601 is installed to electric telescopic handle 6's bottom, and the outer wall of connecting plate 601 and the outer wall connection of

lifter

502, 2 removal drive seal block 201 of hydraulic stem remove, it removes to drive simultaneously and block pole 202, block pole 202 striking wedge 503 afterwards, wedge 503 descends and drives lifter 502 decline, spring 501 contracts, when blocking pole 202 and crossing wedge 503, spring 501 drives lifter 502 and wedge 503 and risees, to blocking the restriction of pole 202, prevent to block pole 202 and the shrink of hydraulic stem 2, realize self-locking function, when needing to adjust, 6 extensions of electric telescopic handle drive connecting plate 601 and lifter 502 descend, hydraulic stem 2 can contract this moment, conveniently adjust, increase the flexibility of device.

Referring to fig. 1 and 4, a base 101 is installed at one end of a cylinder body 1, a cylinder cover 102 is installed at the other end of the cylinder body 1, a first pipe 3 is installed on the outer wall of the base 101, a second pipe 301 is installed at the top of the cylinder cover 102, an electric push rod 402 is installed on the inner wall of a controller 4, a sealing plate 403 is installed at one end of the electric push rod 402, one end of the sealing plate 403 extends into the first pipe 3, a sealing groove 401 is installed on the inner wall of the first pipe 3, the sealing groove 401 is embedded with the sealing plate 403, the cylinder body 1 can be conveniently installed on the base 101, the cylinder cover 102 can ensure the sealing performance of the cylinder body 1, hydraulic oil enters from the first pipe 3 and extrudes the hydraulic rod 2 to move, and the lubricating oil flows out from the second pipe 301 to realize the extending function of the hydraulic rod 2, otherwise, the first pipe 3 flows out, the second pipe 301 flows in to realize the contracting function, and when the telescopic speed is adjusted, the electric push rod 402 extends to drive the gap between the sealing plate 403 and the sealing groove 401 to be smaller, so that the flow speed of the hydraulic oil is reduced, thereby reducing the telescopic speed of the hydraulic rod 2 and realizing the adjusting function.

The working principle is that the hydraulic rod 2 moves to drive the sealing block 201 to move, meanwhile, the blocking rod 202 is driven to move, then, the blocking rod 202 collides with the wedge block 503, the wedge block 503 descends to drive the lifting rod 502 to descend, the spring 501 contracts, when the blocking rod 202 crosses the wedge block 503, the spring 501 drives the lifting rod 502 and the wedge block 503 to ascend, the blocking rod 202 is limited, the blocking rod 202 and the hydraulic rod 2 are prevented from contracting, a self-locking function is achieved, when adjustment is needed, the electric telescopic rod 6 extends to drive the connecting plate 601 and the lifting rod 502 to descend, at the moment, the hydraulic rod 2 can contract, adjustment is convenient, flexibility of the device is increased, hydraulic oil enters from the first pipe 3, the extrusion hydraulic rod 2 moves, lubricating oil flows out from the second pipe 301, the extension function of the hydraulic rod 2 is achieved, on the contrary, the first pipe 3 flows out, the second pipe 301 flows in to achieve the contraction function, when the expansion speed is adjusted, the electric push rod 402 extends to drive a gap between the sealing plate 403 and the sealing groove 401 to be small, and accordingly, the flow speed of the hydraulic oil is reduced, and accordingly, the expansion speed of the hydraulic rod 2 is reduced, and the adjustment function is achieved.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a machinery auto-lock hydro-cylinder, includes cylinder body (1), controller (4) and fixer (5), its characterized in that: two groups of fixing devices (5) are arranged on the inner wall of the cylinder body (1);

a spring (501) is installed on the bottom wall inside the fixer (5), a lifting rod (502) is installed at the top of the spring (501), the top of the lifting rod (502) extends out of the top of the fixer (5), and a wedge block (503) is installed at the top end of the lifting rod (502);

hydraulic stem (2) are installed to the outer wall of cylinder body (1), and the one end of hydraulic stem (2) extends into the inside of cylinder body (1), two sets of controller (4) are installed to the inside roof of cylinder body (1), electric telescopic handle (6) are installed to the inside roof of fixer (5), and electric telescopic handle (6) are located one side of lifter (502).

2. The mechanical self-locking oil cylinder according to claim 1, characterized in that: base (101) are installed to the one end of cylinder body (1), and cylinder cap (102) are installed to the other end of cylinder body (1), and first pipe (3) are installed to the outer wall of base (101).

3. The mechanical self-locking oil cylinder according to claim 2, characterized in that: and a second pipe (301) is installed at the top of the cylinder cover (102).

4. The mechanical self-locking oil cylinder according to claim 1, characterized in that: electric putter (402) are installed to the inner wall of controller (4), and closing plate (403) are installed to the one end of electric putter (402), and the one end of closing plate (403) extends into the inside of a pipe (3), and seal groove (401) are installed to the inner wall of a pipe (3), and seal groove (401) and closing plate (403) gomphosis.

5. The mechanical self-locking oil cylinder according to claim 1, characterized in that: seal block (201) is installed to the one end of hydraulic stem (2), and two stop rod (202) are installed to the outer wall of hydraulic stem (2), and the outer wall cover of hydraulic stem (2) is equipped with sealed pad (203), and the outer wall that seals pad (203) and the inner wall connection of cylinder body (1).

6. The mechanical self-locking oil cylinder according to claim 1, characterized in that: connecting plate (601) is installed to the bottom of electric telescopic handle (6), and the outer wall of connecting plate (601) is connected with the outer wall of lifter (502).