CN212672144U - Hydraulic cylinder with buffer structure - Google Patents

Abstract

The utility model discloses a pneumatic cylinder with buffer structure, including the pneumatic cylinder body, pneumatic cylinder body one side is provided with the cylinder head, cylinder head bottom threaded connection has the connecting pipe, the connecting pipe outside is provided with the movable block, the activity groove has been seted up to the movable block outer wall, movable block and activity groove sliding connection, the inside lock of movable block is connected with the dead lever, dead lever and cylinder head threaded connection, the inside valve rod that is provided with of cylinder head, the valve rod outer wall is provided with the pole inner chamber. The utility model discloses a valve plug can be with the blotter nestification to the outer wall of valve plug before sliding, and nested back that finishes overturns under the effect of loose axle rotates the fixture block, makes the fixture block fixed with the buckle lock, and another fixture block carries out the lock according to above step to strengthen fixing between blotter and the valve plug, silica gel setting makes the valve plug outer wall and the pole inner chamber inner wall when laminating the slip, can realize the buffering of sliding speed.

Description

Hydraulic cylinder with buffer structure

Technical Field

The utility model relates to a pneumatic cylinder field, concretely relates to pneumatic cylinder with buffer structure.

Background

The hydraulic cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and makes linear reciprocating motion (or swinging motion), and 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 hydraulic cylinder on the existing market has excessive internal friction due to overlarge movement amplitude in the movement process, so that the service life is prolonged, and the problem of seepage prevention cannot be solved in the process of injecting oil into the interior.

Therefore, it is necessary to provide a hydraulic cylinder with a cushion structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hydraulic cylinder with a buffer structure, wherein a cushion pad can be nested to the outer wall of a valve plug before the valve plug slides, after the nesting is finished, a rotating fixture block is overturned under the action of a movable shaft to enable the fixture block to be fastened and fixed with a buckle, another fixture block is fastened according to the steps, thereby the fixation between the cushion pad and the valve plug is enhanced, when the silica gel is arranged to enable the outer wall of the valve plug to be jointed and slide with the inner wall of a rod inner cavity, the buffering of the sliding speed can be realized, a movable block slides to the joint of a connecting pipe and the bottom of a cylinder head under the action of a movable groove, a leakage-proof cushion jointed with the outer wall of the movable block is tightly jointed with the movable block, after the jointing is finished, the fixed rod is placed into the movable block and the inner part of the cylinder head to fix the position of the movable block, the other side of the connecting pipe is fixed in an anti-leakage way according, to address the above-mentioned deficiencies in the art.

In order to achieve the above object, the present invention provides the following technical solutions: a hydraulic cylinder with a buffering structure comprises a hydraulic cylinder body, wherein a cylinder head is arranged on one side of the hydraulic cylinder body, a connecting pipe is in threaded connection with the bottom of the cylinder head, a movable block is arranged outside the connecting pipe, a movable groove is formed in the outer wall of the movable block, the movable block is in sliding connection with the movable groove, a fixed rod is buckled and connected inside the movable block and is in threaded connection with the cylinder head, a valve rod is arranged inside the cylinder head, a rod inner cavity is formed in the outer wall of the valve rod, a rodless cavity is connected inside the rod inner cavity, a valve plug is arranged inside the rodless cavity, a buffering cushion is connected with the outer wall of the valve plug in an embedded manner, a movable shaft penetrates through the outer wall of the buffering cushion, a clamping block is hinged to the outer wall of the movable shaft, a clamping buckle is, and a stepping motor is arranged on one side of the cylinder tail gland.

Preferably, the outer wall of the movable block is connected with a leakage-proof pad, the leakage-proof pad is made of a vacuum rubber plate, and the movable block is matched with the leakage-proof pad.

Preferably, the number of the movable blocks is two, and the two movable blocks are symmetrically arranged around the central axis of the connecting pipe.

Preferably, the buffer cushion is matched with the valve plug, and the buffer cushion is made of silica gel.

Preferably, the number of the clamping blocks is two, and the two clamping blocks are symmetrically arranged around the central axis of the cushion pad.

In the technical scheme, the utility model provides a technological effect and advantage:

1. before the valve plug slides, the cushion pad can be nested to the outer wall of the valve plug, after nesting is finished, the clamping block is turned and rotated under the action of the movable shaft, the clamping block is buckled and fixed with the buckle, the other clamping block is buckled according to the steps, so that the fixation between the cushion pad and the valve plug is enhanced, and when the outer wall of the valve plug is matched with the inner wall of the rod inner cavity to slide due to the arrangement of silica gel, the buffering of the sliding speed can be realized.

2. Through sliding the movable block to the junction of connecting pipe and jar head bottom under the effect with the movable block, make the leak protection pad of movable block outer wall laminating closely laminate to it, the laminating finishes the back and puts into the movable block and the inside of jar head with the dead lever and carries out the rigidity of movable block, the opposite side of connecting pipe is prevented osmosis according to above step and is passed through fixedly, the oiling finishes the back, drive the inside no pole chamber of pole inner chamber and slide inside the pole inner chamber with the valve plug through inside valve rod, compare with prior art, this device has solved and has carried out the problem that the osmosis can't be prevented to the osmosis at the in-process of oiling inside.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic view of the overall three-dimensional structure of the present invention;

fig. 2 is a schematic front view of the cross-sectional structure of the present invention;

fig. 3 is an enlarged schematic structural view of a point a in fig. 2 according to the present invention;

fig. 4 is a schematic side view of the valve plug of the present invention;

fig. 5 is an enlarged schematic structural diagram of the position B in fig. 2 according to the present invention.

Description of reference numerals:

the hydraulic cylinder comprises a hydraulic cylinder body 1, a cylinder head 2, a connecting pipe 3, a movable block 4, a movable groove 5, a fixed rod 6, a valve rod 7, a rod inner cavity 8, a rod-free cavity 9, a valve plug 10, a cushion pad 11, a movable shaft 12, a clamping block 13, a buckle 14, a cylinder tail gland 15 and a stepping motor 16.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

The utility model provides a hydraulic cylinder with a buffer structure as shown in figures 1-5, which comprises a hydraulic cylinder body 1, one side of the hydraulic cylinder body 1 is provided with a cylinder head 2, the bottom of the cylinder head 2 is connected with a connecting pipe 3 by screw thread, the outside of the connecting pipe 3 is provided with a movable block 4, the outer wall of the movable block 4 is provided with a movable groove 5, the movable block 4 is connected with the movable groove 5 in a sliding way, the inside of the movable block 4 is buckled and connected with a fixed rod 6, the fixed rod 6 is connected with the cylinder head 2 by screw thread, the inside of the cylinder head 2 is provided with a valve rod 7, the outer wall of the valve rod 7 is provided with a rod inner cavity 8, the inside of the rod inner cavity 8 is connected with a rodless cavity 9, the inside of the rodless cavity 9 is provided with a valve plug 10, the outer wall of the valve plug 10 is, the inside lock of fixture block 13 is connected with buckle 14, fixed connection between buckle 14 and the valve plug 10, the laminating of 10 afterbody of valve plug has cylinder tail gland 15, cylinder tail gland 15 one side is provided with step motor 16.

Further, in above-mentioned technical scheme, 4 outer wall connections of movable block have the leak protection pad, the leak protection pad is made by the vacuum offset plate, movable block 4 and leak protection pad phase-match, this structure effectively says that slide movable block 4 to the junction of connecting pipe 3 and jar head 2 bottoms under the effect of movable groove 5, makes the leak protection pad of 4 outer wall laminating of movable block closely laminate it, and the vacuum offset plate gas tightness is good, and is ventilative, the prevention of seepage is passed through.

Further, in the above technical solution, two movable blocks 4 are provided, and two movable blocks 4 are symmetrically arranged about the axis of the connecting pipe 3, which effectively means that the fixed rod 6 is placed inside the movable blocks 4 and the cylinder head 2 to fix the position of the movable blocks 4, and the other side of the connecting pipe 3 is fixed in an anti-seepage manner according to the above steps.

Further, in above-mentioned technical scheme, blotter 11 and valve plug 10 phase-match, blotter 11 is made by silica gel, and this structure has effectively explained silica gel setting and has made 10 outer walls of valve plug and the 8 inner walls of pole inner chamber laminate when sliding, can realize the buffering of sliding speed.

The implementation mode is specifically as follows: this device is when in actual use, at first be connected connecting pipe 3 with the bottom of jar head 2, make connecting pipe 3 carry out the oiling to the inside of pneumatic cylinder body 1, slide movable block 4 to the junction of connecting pipe 3 and jar head 2 bottom under the effect of movable groove 5, the leak protection pad that makes the laminating of movable block 4 outer wall closely laminates to it, put into movable block 4 and jar head 2's inside with dead lever 6 after the laminating finishes and carry out the rigidity of movable block 4, the opposite side of connecting pipe 3 carries out prevention of seepage according to above step and passes through fixedly, the back is accomplished in the oiling, drive the inside no pole chamber 9 of pole inner chamber 8 and slide in pole inner chamber 8 with valve plug 10 through inside valve rod 7, compared with the prior art, this device has solved and has carried out the problem of preventing seepage and passing through at the in-process of carrying out the oiling to inside.

As shown in fig. 1-5: the number of the fixture blocks 13 is two, the two fixture blocks 13 are symmetrically arranged about the central axis of the cushion pad 11, and the structure effectively illustrates that the fixture blocks 13 are turned and rotated under the action of the movable shaft 12, so that the fixture blocks 13 are fastened and fixed with the fasteners 14, and the other fixture block 13 is fastened according to the above steps, thereby enhancing the fixation between the cushion pad 11 and the valve plug 10.

The implementation mode is specifically as follows: this device is when in actual use, valve plug 10 is before sliding, can be with 11 nested outer walls to valve plug 10 of blotter, nested back that finishes, upset rotation fixture block 13 under the effect of loose axle 12, it is fixed with buckle 14 lock to make fixture block 13, another fixture block 13 carries out the lock according to above step, thereby strengthen fixing between blotter 11 and the valve plug 10, silica gel sets up when making 10 outer walls of valve plug and 8 inner walls of rod cavity laminate and slide, can realize the buffering of sliding speed, compared with the prior art, this device has solved because the motion range is too big in the motion process, make internal friction excessive, lead to reducing life's problem.

This practical theory of operation:

referring to the attached drawings 1-5 of the specification, when the device is used, firstly, the connecting pipe 3 is connected with the bottom of the cylinder head 2, the connecting pipe 3 is used for injecting oil into the hydraulic cylinder body 1, the movable block 4 slides to the joint of the connecting pipe 3 and the bottom of the cylinder head 2 under the action of the movable groove 5, a leakage-proof pad attached to the outer wall of the movable block 4 is used for closely attaching the movable block, after the attachment is finished, the fixed rod 6 is placed into the movable block 4 and the inside of the cylinder head 2 to fix the position of the movable block 4, the other side of the connecting pipe 3 is used for carrying out anti-seepage fixation according to the steps, and after the oil injection is finished, the valve rod 7 in the connecting pipe drives the rodless cavity 9 and the valve plug 10 in the rod inner cavity 8 to;

referring to the attached drawings 1-5 in the specification, when the device is used, the valve plug 10 can be nested to the outer wall of the valve plug 10 before sliding, after the nesting is finished, the fixture block 13 is turned over and rotated under the action of the movable shaft 12 to enable the fixture block 13 to be fixedly buckled with the buckle 14, the other fixture block 13 is buckled according to the steps, the fixation between the cushion 11 and the valve plug 10 is enhanced, and when the outer wall of the valve plug 10 is attached to the inner wall of the rod inner cavity 8 to slide, the buffering of the sliding speed can be realized.

While certain exemplary embodiments of the present invention have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims (5)

1. A hydraulic cylinder with a cushion structure comprises a hydraulic cylinder body (1), and is characterized in that: the hydraulic cylinder is characterized in that a cylinder head (2) is arranged on one side of the hydraulic cylinder body (1), a connecting pipe (3) is in threaded connection with the bottom of the cylinder head (2), a movable block (4) is arranged outside the connecting pipe (3), a movable groove (5) is formed in the outer wall of the movable block (4), the movable block (4) is in sliding connection with the movable groove (5), a fixed rod (6) is connected to the inner portion of the movable block (4) in a buckling mode, the fixed rod (6) is in threaded connection with the cylinder head (2), a valve rod (7) is arranged inside the cylinder head (2), a rod inner cavity (8) is formed in the outer wall of the valve rod (7), a rodless cavity (9) is connected to the inner portion of the rod inner cavity (8), a valve plug (10) is arranged inside the rodless cavity (9), a cushion (11) is connected to the outer wall, the outer wall of the movable shaft (12) is hinged with a clamping block (13), the clamping block (13) is connected with a buckle (14) in a buckled mode, the buckle (14) is fixedly connected with the valve plug (10), a cylinder tail gland (15) is attached to the tail portion of the valve plug (10), and a stepping motor (16) is arranged on one side of the cylinder tail gland (15).

2. The hydraulic cylinder with a cushion structure according to claim 1, wherein: the outer wall of the movable block (4) is connected with a leakage-proof pad, the leakage-proof pad is made of a vacuum rubber plate, and the movable block (4) is matched with the leakage-proof pad.

3. The hydraulic cylinder with a cushion structure according to claim 1, wherein: the number of the movable blocks (4) is two, and the two movable blocks (4) are symmetrically arranged around the axis of the connecting pipe (3).

4. The hydraulic cylinder with a cushion structure according to claim 1, wherein: the buffer pad (11) is matched with the valve plug (10), and the buffer pad (11) is made of silica gel.

5. The hydraulic cylinder with a cushion structure according to claim 1, wherein: the number of the clamping blocks (13) is two, and the two clamping blocks (13) are symmetrically arranged relative to the central axis of the cushion pad (11).

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