CN212407172U

CN212407172U - Dual lubricating device for servo hydraulic cylinder

Info

Publication number: CN212407172U
Application number: CN202020843306.4U
Authority: CN
Inventors: 胡中华; 雍君
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-20
Filing date: 2020-05-20
Publication date: 2021-01-26
Anticipated expiration: 2030-05-20

Abstract

The utility model relates to a dual lubricating arrangement technical field just discloses a servo pneumatic cylinder uses dual lubricating arrangement, comprising a cylinder body, fixed mounting has the cylinder head on the top inner wall of cylinder body, is provided with same piston rod in cylinder body and the cylinder head, and oil pressure chamber has been seted up at the top of cylinder head, and the same oil circuit that is equipped with has been seted up to one side inner wall of oil pressure chamber and the bottom of cylinder head, and the top fixed mounting of cylinder body has the oil tank that sets up to hollow structure, and the oil inlet has been seted up at the top of oil tank, has all seted up the seal groove on the both sides inner wall of oil inlet, and slidable mounting has. The utility model discloses a size of control oil-out can realize the trace release of lubricating oil, can not cause a large amount of wastes of lubricating oil, and is very economical, simultaneously, seals the oil tank after filling lubricating oil, has improved the leakproofness of oil inlet, has prevented the entering of dust, has satisfied the needs that use.

Description

Dual lubricating device for servo hydraulic cylinder

Technical Field

The utility model relates to a dual lubrication installation technical field especially relates to a dual lubrication installation for servo pneumatic cylinder.

Background

The hydraulic oil cylinder is a hydraulic actuating element which converts hydraulic energy into mechanical energy and does linear reciprocating motion or swinging motion, has simple structure and reliable work, can remove a speed reducer when realizing reciprocating motion, has no transmission clearance and moves stably, and is widely applied to hydraulic systems of various machines.

The application numbers are: 201621492538.X discloses a dual lubrication arrangement for a servo cylinder. The dual-lubrication device for the servo hydraulic cylinder comprises a cylinder body, wherein a cylinder head is installed at one end of the cylinder body, a piston rod is arranged in the cylinder body and the cylinder head, the outer surface of the piston rod comprises a first contact surface matched with the inner wall of the cylinder head and a second contact surface matched with the inner wall of the cylinder body, and a lubrication coating is arranged on the first contact surface and the second contact surface; an oil pressure cavity and an oil path are arranged in the cylinder head, one end of the oil path is communicated with the oil pressure cavity, and the other end of the oil path is communicated with the inner cavity of the cylinder head. The utility model has simple structure and reasonable design, the oil pressure cavity is filled with lubricating oil, the lubricating oil enters the clearance between the cylinder head and the piston rod through the oil way, and the lubricating performance of the cylinder head and the piston rod is improved; and lubricating coatings are sprayed on the first contact surface and the second contact surface of the outer wall of the piston rod, the hard chromium layer improves the strength of the outer wall of the piston rod, and the polytetrafluoroethylene layer improves the self-lubricating property of the outer wall of the piston rod.

However, when the oil tank is used, the release of a small amount of lubricating oil cannot be achieved, a large amount of lubricating oil is wasted, the oil tank is not economical, the oil inlet of the oil tank is poor in sealing effect, dust enters the lubricating oil, and the use of the lubricating oil is affected.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving among the prior art when using, can't accomplish the trace release of lubricating oil, cause a large amount of wastes of lubricating oil, it is very uneconomical, moreover to the oil inlet sealing effect of oil tank poor, lead to getting into the dust in the lubricating oil, influence the problem of the use of lubricating oil, and the dual lubricating arrangement for servo cylinder that provides.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a double-lubrication device for a servo hydraulic cylinder comprises a cylinder body, wherein a cylinder head is fixedly arranged on the inner wall of the top of the cylinder body, the cylinder body and the cylinder head are internally provided with the same piston rod, the top of the cylinder head is provided with an oil pressure cavity, one inner wall of the oil pressure cavity and the bottom of the cylinder head are provided with the same oil circuit, the top of the cylinder body is fixedly provided with an oil tank which is arranged into a hollow structure, the top of the oil tank is provided with an oil inlet, the inner walls of the two sides of the oil inlet are respectively provided with a sealing groove, a sealing plate is slidably arranged in the oil inlet, a sliding hole is arranged on the sealing plate, two sealing blocks are slidably arranged in the sliding hole, the ends, far away from each other, of the two sealing blocks are respectively and hermetically clamped with the corresponding sealing grooves, the top of two sealed pieces is equal fixed mounting has the rotation seat, and the one end that two hinge bars kept away from each other rotates with corresponding rotation seat respectively and is connected, and two sealed pieces clamp mutually with two sealed grooves and seal the oil inlet.

Preferably, the mounting hole has been seted up at the top of closing plate, and the mounting hole communicates with articulated groove, and slidable mounting has the installation pole in the mounting hole, and the bottom of installation pole extends to articulated inslot and with the top fixed connection of articulated seat, the top fixed mounting of articulated seat establish the spacing spring in the installation pole outside, the top of spacing spring and the top inner wall fixed connection in articulated groove, spacing spring plays spacing and the effect that resets.

Preferably, an oil outlet is formed in the inner wall of the bottom of the oil tank, the oil outlet is communicated with the oil pressure cavity, a fixed groove is formed in the inner wall of one side of the oil outlet, a moving groove is formed in the inner wall of the other side of the oil outlet, a same moving plate is slidably mounted in the moving groove and the oil outlet, one end of the moving plate is clamped with the fixed groove in a sealing mode, a threaded groove is formed in the other end of the moving plate, a lead screw is connected to the threaded groove in a threaded mode, and the moving plate and.

Preferably, the rotation hole has been seted up to one side of oil tank, rotates the hole and communicates with the shifting chute mutually, rotates downthehole rotation and installs the dwang, the one end of dwang extend to the shifting chute in and with lead screw fixed connection, one side fixed mounting of oil tank has the motor, and the lead screw was kept away from to the dwang one end extend to the outside of oil tank and with the output shaft fixed connection of motor, the rotation of lead screw drives the movable plate through the thread groove and removes.

Preferably, a first sliding groove is formed in the inner wall of the bottom of the sliding hole, two first sliding blocks are fixedly mounted at the bottom of the sealing block and are respectively in sliding connection with the corresponding first sliding grooves, and the two first sliding blocks limit the two sealing blocks.

Preferably, the top inner wall and the bottom inner wall of the moving groove are both provided with second sliding grooves, the top and the bottom of the moving plate are both fixedly provided with second sliding blocks, the two second sliding blocks are respectively in sliding connection with the corresponding second sliding grooves, and the two second sliding blocks limit the moving plate.

Compared with the prior art, the utility model provides a dual lubrication device for servo pneumatic cylinder possesses following beneficial effect:

1. according to the dual-lubrication device for the servo hydraulic cylinder, the mounting rod is pulled firstly, the mounting rod drives the hinge seat to move, the hinge seat compresses the limiting spring, the limiting spring absorbs energy to enable the two sealing blocks to move out of the two sealing grooves, then the sealing plate is taken out of the oil inlet, lubricating oil is filled into the oil tank, after filling is completed, the sealing plate is placed into the oil inlet, then the mounting rod is loosened, the two sealing blocks are clamped into the two sealing grooves under the spring resilience acting force of the limiting spring, and the sealing plate and the two sealing blocks seal the oil inlet;

2. according to the dual lubricating device for the servo hydraulic cylinder, when lubricating oil is injected into a cylinder body, the motor is started, the output shaft of the motor drives the rotating rod to rotate, the rotating rod drives the screw rod to rotate, the sealing plate is moved out of the fixed groove, the oil outlet is opened, the cylinder body is injected with the lubricating oil through the oil outlet, the size of the oil outlet is controlled by controlling the motor, and micro release of the lubricating oil can be realized;

and the part that does not relate to among the device all is the same with prior art or can adopt prior art to realize, the utility model discloses a control the size of oil-out, can realize the micro-release of lubricating oil, can not cause a large amount of wastes of lubricating oil, and is very economical, simultaneously, seals the oil tank behind filling lubricating oil, has improved the leakproofness of oil inlet, has prevented the entering of dust, has satisfied the needs of using.

Drawings

Fig. 1 is a schematic structural view of a dual lubrication device for a servo hydraulic cylinder according to the present invention;

fig. 2 is a schematic structural view of a portion a of a dual lubrication device for a servo hydraulic cylinder according to the present invention;

fig. 3 is a schematic structural diagram of a part B of a dual lubrication device for a servo hydraulic cylinder according to the present invention.

In the figure: the hydraulic cylinder comprises a cylinder body 1, a cylinder head 2, a piston rod 3, an oil pressure chamber 4, an oil path 5, an oil tank 6, an oil inlet 7, a sealing groove 8, a sealing plate 9, a sliding hole 10, a hinge groove 11, a hinge seat 12, a hinge rod 13, a rotating seat 14, a mounting hole 15, a mounting rod 16, a limiting spring 17, an oil outlet 18, a fixing groove 19, a moving groove 20, a moving plate 21, a thread groove 22, a screw rod 23, a rotating hole 24, a rotating rod 25, a motor 26 and a sealing block 27.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", 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 simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-3, a dual lubrication device for a servo hydraulic cylinder comprises a cylinder body 1, a cylinder head 2 is fixedly installed on the inner wall of the top of the cylinder body 1, the same piston rod 3 is arranged in the cylinder body 1 and the cylinder head 2, an oil pressure cavity 4 is arranged at the top of the cylinder head 2, an oil path 5 is arranged on the inner wall of one side of the oil pressure cavity 4 and the bottom of the cylinder head 2, an oil tank 6 which is arranged in a hollow structure is fixedly installed at the top of the cylinder body 1, an oil inlet 7 is arranged at the top of the oil tank 6, sealing grooves 8 are respectively arranged on the inner walls of the two sides of the oil inlet 7, a sealing plate 9 is slidably installed in the oil inlet 7, a sliding hole 10 is arranged on the sealing plate 9, two sealing blocks 27 are slidably installed in the sliding hole 10, one end of each sealing block 27, which, articulated seat 12 has slidable mounting in the articulated groove 11, articulated on the articulated seat 12 have articulated rod 13 that two slopes set up, and the equal fixed mounting in top of two sealed pieces 27 has the seat 14 that rotates, and the one end that two articulated rod 13 kept away from each other rotates with corresponding seat 14 respectively to be connected, and two sealed pieces 27 clamp mutually with two seal grooves 8 and seal oil inlet 7.

The utility model discloses in, mounting hole 15 has been seted up at the top of closing plate 9, mounting hole 15 is linked together with hinge groove 11, slidable mounting has installation pole 16 in mounting hole 15, the bottom of installation pole 16 extend to hinge groove 11 in and with the top fixed connection of articulated seat 12, the top fixed mounting of articulated seat 12 has the cover to establish the spacing spring 17 in the installation pole 16 outside, spacing spring 17's top and hinge groove 11's top inner wall fixed connection, spacing spring 17 plays spacing and the effect that resets.

The utility model discloses in, oil-out 18 has been seted up on the bottom inner wall of oil tank 6, oil-out 18 is linked together with oil pressure chamber 4, fixed slot 19 has been seted up on one side inner wall of oil-out 18, shifting chute 20 has been seted up on the opposite side inner wall of oil-out 18, sliding mounting has same movable plate 21 in shifting chute 20 and the oil-out 18, and movable plate 21's one end and fixed slot 19 seal clamp, threaded groove 22 has been seted up to movable plate 21's the other end, threaded groove 22 threaded connection has lead screw 23, movable plate 21 clamps mutually with fixed slot 19 and seals oil-out 18.

The utility model discloses in, rotation hole 24 has been seted up to one side of oil tank 6, rotation hole 24 is linked together with moving chute 20, the dwang 25 is installed to rotation hole 24 internal rotation, the one end of dwang 25 extend to in moving chute 20 and with lead screw 23 fixed connection, one side fixed mounting of oil tank 6 has motor 26, and the one end that lead screw 23 was kept away from to dwang 25 extend to the outside of oil tank 6 and with motor 26's output shaft fixed connection, the rotation of lead screw 23 drives movable plate 21 through thread groove 22 and removes.

The utility model discloses in, seted up first spout on the bottom inner wall of sliding hole 10, the bottom fixed mounting of sealed piece 27 has two first sliders, and two first sliders respectively with corresponding first spout sliding connection, two first sliders carry on spacingly to two sealed pieces 27.

The utility model discloses in, all seted up the second spout on the top inner wall of shifting chute 20 and the bottom inner wall, the top of movable plate 21 and the equal fixed mounting in bottom have the second slider, and two second sliders respectively with corresponding second spout sliding connection, two second sliders carry on spacingly to movable plate 21.

In the utility model, when in use, the mounting rod 16 is pulled first, the mounting rod 16 drives the hinged seat 12 to move, the hinged seat 12 compresses the limit spring 17, the limit spring 17 absorbs energy, meanwhile, the hinged seat 12 drives the two hinged rods 13 to move, the two hinged rods 13 drive the two hinged seats 14 to move, the two hinged seats 14 drive the two sealing blocks 27 to move, the two sealing blocks 27 move out of the two sealing grooves 8, then the sealing plate 9 is taken out of the oil inlet 7, the oil tank 6 is filled with lubricating oil, after the filling is completed, the sealing plate 9 is placed in the oil inlet 7, then the mounting rod 16 is loosened, the two sealing blocks 27 are clamped into the two sealing grooves 8 under the spring resilience acting force of the limit spring 17, the sealing plate 9 and the two sealing blocks 27 seal the oil inlet 7, and simultaneously, when the lubricating oil is filled into the cylinder body 1, the motor 26 is started, motor 26 is controlled by control switch, and motor 26 is supplied power by the battery, and motor 26's output shaft drives dwang 25 and rotates, and dwang 25 drives lead screw 23 and rotates, and lead screw 23 drives movable plate 21 through thread groove 22 and removes, makes closing plate 21 shift out in fixed slot 19, and oil-out 18 is opened, annotates lubricating oil through oil-out 18 to cylinder body 1, through control motor 26, control oil-out 18's size, can realize the micro-release of lubricating oil, the utility model discloses a control oil-out 18's size can realize the micro-release of lubricating oil, can not cause a large amount of wastes of lubricating oil, and is very economical, simultaneously, seals oil tank 6 behind the filling lubricating oil, has improved the leakproofness of oil inlet 7, has prevented the entering of dust, has satisfied the needs of using.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A dual lubricating device for a servo hydraulic cylinder comprises a cylinder body (1) and is characterized in that a cylinder head (2) is fixedly installed on the inner wall of the top of the cylinder body (1), the same piston rod (3) is arranged in the cylinder body (1) and the cylinder head (2), an oil pressure cavity (4) is formed in the top of the cylinder head (2), the same oil circuit (5) is formed in one side of the inner wall of the oil pressure cavity (4) and the bottom of the cylinder head (2), an oil tank (6) which is arranged in a hollow structure is fixedly installed at the top of the cylinder body (1), an oil inlet (7) is formed in the top of the oil tank (6), sealing grooves (8) are formed in the inner walls of two sides of the oil inlet (7), a sealing plate (9) is installed in the oil inlet (7) in a sliding mode, a sliding hole (10) is, and the one end that two sealed pieces (27) kept away from each other seals with corresponding seal groove (8) respectively and clamps, articulated groove (11) have been seted up on the top inner wall of sliding hole (10), slidable mounting has articulated seat (12) in articulated groove (11), articulated on articulated seat (12) have articulated rod (13) that two slopes set up, the equal fixed mounting in top of two sealed pieces (27) rotates seat (14), and the one end that two articulated rod (13) kept away from each other rotates with corresponding seat (14) and is connected.

2. The dual-lubrication device for the servo hydraulic cylinder as recited in claim 1, wherein a mounting hole (15) is formed in the top of the sealing plate (9), the mounting hole (15) is communicated with the hinge groove (11), a mounting rod (16) is slidably mounted in the mounting hole (15), the bottom end of the mounting rod (16) extends into the hinge groove (11) and is fixedly connected with the top of the hinge seat (12), a limiting spring (17) sleeved on the outer side of the mounting rod (16) is fixedly mounted on the top of the hinge seat (12), and the top end of the limiting spring (17) is fixedly connected with the inner wall of the top of the hinge groove (11).

3. The dual-lubrication device for the servo hydraulic cylinder as recited in claim 1, wherein an oil outlet (18) is formed in an inner wall of a bottom of the oil tank (6), the oil outlet (18) is communicated with the oil pressure chamber (4), a fixing groove (19) is formed in an inner wall of one side of the oil outlet (18), a moving groove (20) is formed in an inner wall of the other side of the oil outlet (18), a same moving plate (21) is slidably mounted in the moving groove (20) and the oil outlet (18), one end of the moving plate (21) is hermetically clamped with the fixing groove (19), a thread groove (22) is formed in the other end of the moving plate (21), and a lead screw (23) is in threaded connection with the thread groove (22.

4. The dual lubrication device for the servo hydraulic cylinder as recited in claim 1, wherein a rotation hole (24) is formed in one side of the oil tank (6), the rotation hole (24) is communicated with the moving groove (20), a rotation rod (25) is rotatably installed in the rotation hole (24), one end of the rotation rod (25) extends into the moving groove (20) and is fixedly connected with the screw rod (23), a motor (26) is fixedly installed on one side of the oil tank (6), and one end of the rotation rod (25), which is far away from the screw rod (23), extends to the outer side of the oil tank (6) and is fixedly connected with an output shaft of the motor (26).

5. The dual lubrication device for the servo hydraulic cylinder as recited in claim 1, wherein a first sliding groove is formed on the inner wall of the bottom of the sliding hole (10), two first sliding blocks are fixedly mounted at the bottom of the sealing block (27), and the two first sliding blocks are respectively connected with the corresponding first sliding grooves in a sliding manner.

6. The dual lubrication device for the servo hydraulic cylinder as recited in claim 3, wherein the top inner wall and the bottom inner wall of the moving groove (20) are both provided with second sliding grooves, the top and the bottom of the moving plate (21) are both fixedly provided with second sliding blocks, and the two second sliding blocks are respectively connected with the corresponding second sliding grooves in a sliding manner.