CN213331783U

CN213331783U - Two-stage long-stroke hydraulic cylinder

Info

Publication number: CN213331783U
Application number: CN202022215801.3U
Authority: CN
Inventors: 刘江华; 高培栋; 郭志敏
Original assignee: Handan Taigu Hydraulic Machinery Manufacturing Co ltd
Current assignee: Handan Taigu Hydraulic Machinery Manufacturing Co ltd
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-06-01
Anticipated expiration: 2030-10-09

Abstract

The utility model discloses a long stroke pneumatic cylinder of second grade, including outer barrel, interior barrel and piston rod, the inside one end of interior barrel is provided with the piston, the piston rod is installed through the mounting hole to the one end of piston, the outside cover of interior barrel is equipped with outer barrel, be provided with the cavity intermediate layer between outer barrel and the interior barrel, a pot head is equipped with the second grade piston in the cavity intermediate layer, a telescopic cylinder is installed through the mounting hole to a tip of second grade piston, a tip of telescopic cylinder runs through the sealed end block of urceolus end part, the welding of one end has the bracing piece in the telescopic cylinder, the pressure switch is installed through the mount pad to the inboard of bracing piece, the extexine of outer barrel is provided with resistant dirty layer. This novel long stroke pneumatic cylinder of second grade function is various, easy operation, and the multiple demand in the use has been satisfied in the production of being convenient for, is fit for extensively using widely.

Description

Two-stage long-stroke hydraulic cylinder

Technical Field

The utility model relates to a pneumatic cylinder technical field, in particular to second grade long stroke pneumatic cylinder.

Background

The hydraulic cylinder is a hydraulic actuator which converts hydraulic energy into mechanical energy and performs 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 damping device and the exhaust device are determined according to specific application occasions, and other devices are necessary. The existing hydraulic cylinder cannot pass through multi-stage strokes, the pushing distance is lengthened, the stain-resistant effect is not obvious, and therefore a two-stage long-stroke hydraulic cylinder is provided.

Disclosure of Invention

A primary object of the present invention is to provide a two-stage long stroke hydraulic cylinder, which can effectively solve the problems of the prior art.

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

the utility model provides a long stroke pneumatic cylinder of second grade, includes outer barrel, interior barrel and piston rod, the inside one end of interior barrel is provided with the piston, the piston rod is installed through the mounting hole to the one end of piston, the outside cover of interior barrel is equipped with outer barrel, be provided with the cavity intermediate layer between outer barrel and the interior barrel, an pot head is equipped with the second grade piston in the cavity intermediate layer, a telescopic cylinder is installed through the mounting hole to a tip of second grade piston, a tip of telescopic cylinder runs through the sealed end block of urceolus body tip, the welding of one end has the bracing piece in the telescopic cylinder, the pressure switch is installed through the mount pad to the inboard of bracing piece, the extexine of outer barrel is provided with resistant dirty.

Furthermore, one end of the piston rod penetrates through the inner cylinder, and a second oil injection pipe and a second oil outlet pipe are respectively arranged on one side of the outer cylinder.

Furthermore, one end of the inner cylinder body is provided with a pressing block through a screw, and the pressing block is opposite to the touch end of the pressure sensitive switch.

Further, the stain resistant layer is a fluorinated silicon modified coating.

Further, the top one end of outer barrel is provided with first notes oil pipe, the bottom one end of outer barrel is provided with first oil pipe.

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

1. carry out the high pressure oiling through first notes oil pipe, the oil pressure effect pushes down the secondary piston and removes to stretch out telescopic cylinder in the hollow interlayer, realize first stroke extension, when carrying out the oiling to second notes oil pipe, the oil pressure promotes the piston and removes, thereby makes the piston rod stretch out from the inner tube is internal, realizes the second stroke extension, reaches the use stroke requirement, in current equipment fixing space, extension working stroke. Not only satisfies limited installation space, but also can satisfy the requirement of long stroke, and the practicality is strong, is fit for extensively using widely.

2. Utilize first play oil pipe to go out the oil back, make a flexible section of thick bamboo retract, press the piece when pressing the pressure switch, owing to utilize the wire to connect oil pressure equipment with the pressure switch, realize self-closing oil pressure equipment, stop flexible section of thick bamboo operation, resistant dirty layer is the modified coating of silicon fluoride, makes the resistant greasy dirt of extexine of outer barrel, and difficult glutinous dust that glues, coating intensity is high, is difficult for peeling off, durable.

Drawings

Fig. 1 is the utility model relates to an overall structure schematic diagram of two-stage long stroke pneumatic cylinder.

Fig. 2 is a schematic diagram of a second oil filling pipe and a second oil outlet pipe of the two-stage long-stroke hydraulic cylinder according to the present invention.

Fig. 3 is a schematic view of the stain-resistant layer structure of the two-stage long-stroke hydraulic cylinder of the present invention.

In the figure: 1. a first filler pipe; 2. an outer cylinder; 3. a secondary piston; 4. a telescopic cylinder; 5. an inner cylinder; 6. a sealing end block; 7. a pressing block; 8. a pressure sensitive switch; 9. a support bar; 10. a piston; 11. a piston rod; 12. a second filler pipe; 13. a second oil outlet pipe; 14. a stain resistant layer; 15. a first oil outlet pipe.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

As shown in fig. 1-3, a two-stage long-stroke hydraulic cylinder comprises an outer cylinder body 2, an inner cylinder body 5 and a piston rod 11, wherein a piston 10 is arranged at one end inside the inner cylinder body 5, the piston rod 11 is installed at one end of the piston 10 through a mounting hole, the outer cylinder body 2 is sleeved outside the inner cylinder body 5, a hollow interlayer 16 is arranged between the outer cylinder body 2 and the inner cylinder body 5, a two-stage piston 3 is sleeved inside the hollow interlayer 16, a telescopic cylinder 4 is installed at one end of the second-stage piston 3 through the mounting hole, one end of the telescopic cylinder 4 penetrates through a sealing end block 6 at the end of the outer cylinder body 2, a support rod 9 is welded at one end inside the telescopic cylinder 4, a pressure-sensitive switch 8 is installed on the inner side of the support rod 9 through a mounting seat, and a dirt-.

One end of the piston rod 11 penetrates through the inner cylinder 5, and one side of the outer cylinder 2 is provided with a second oil injection pipe 12 and a second oil outlet pipe 13 respectively.

In the present embodiment, as shown in fig. 1, the piston rod 11 is returned after the oil is discharged from the second filler pipe 12.

One end of the inner cylinder 5 is provided with a pressing block 7 through a screw, and the pressing block 7 is opposite to the touch end of the pressure-sensitive switch 8.

Wherein, the stain-resistant layer 14 is a fluorinated silicon modified coating.

In this embodiment, as shown in fig. 3, the stain-resistant layer 14 is a silicon fluoride modified coating, so that the outer surface layer of the outer cylinder 2 is resistant to oil stains and is not easy to stick dust, and the coating has high strength, is not easy to peel off, and is durable.

Wherein, the top one end of outer barrel 2 is provided with first notes oil pipe 1, the bottom one end of outer barrel 2 is provided with first oil outlet pipe 15.

In this embodiment, as shown in fig. 1, after the oil is discharged through the first oil discharge pipe 15, the telescopic cylinder 4 is retracted, and when the pressing block 7 presses the pressure sensitive switch 8, the pressure sensitive switch 8 is connected to the hydraulic device through a lead wire, so that the hydraulic device is automatically turned off, and the telescopic cylinder 4 is stopped.

It should be noted that, the utility model relates to a two-stage long stroke pneumatic cylinder, in operation, carry out high-pressure oiling through first notes oil pipe 1, promote second grade piston 3 under the oil pressure effect and remove, thereby stretch out telescopic cylinder 4 from hollow intermediate layer 16, realize first stroke extension, when carrying out the oiling to second notes oil pipe 12, oil pressure promotes piston 10 and removes, thereby make piston rod 11 stretch out from interior barrel 5, realize the second stroke extension, reach the service stroke requirement, in current equipment fixing space, extension working stroke. Both satisfied limited installation space, can satisfy the demand of long stroke again, therefore, the clothes hanger is strong in practicability, be fit for extensive using widely, utilize first play oil pipe 15 to go out oily back, make a section of thick bamboo 4 return and contract, press the briquetting 7 when pressing pressure switch 8, owing to utilize the wire to connect oil pressure equipment with pressure switch 8, realize self-closing oil pressure equipment, stop the operation of a section of thick bamboo 4 that stretches out and draws back, resistant dirty layer 14 is the modified coating of silicon fluoride, make the outer surface layer of outer barrel 2 resistant greasy dirt, difficult glutinous dust of gluing, coating strength is high, difficult peeling off, and durability.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a two-stage long-stroke hydraulic cylinder, includes outer barrel (2), interior barrel (5) and piston rod (11), its characterized in that: the utility model discloses a pressure sensitive switch, including interior barrel (5), piston rod (11) are installed through the mounting hole to the inside one end of interior barrel (5), the outside cover of interior barrel (5) is equipped with outer barrel (2), be provided with between outer barrel (2) and interior barrel (5) cavity intermediate layer (16), a pot head is equipped with second grade piston (3) in cavity intermediate layer (16), telescopic cylinder (4) are installed through the mounting hole to a tip of second grade piston (3), a tip of telescopic cylinder (4) runs through sealed end block (6) of outer barrel (2) tip, the welding of one end has bracing piece (9) in telescopic cylinder (4), pressure sensitive switch (8) are installed through the mount pad to the inboard of bracing piece (9), the extexine of outer barrel (2) is provided with resistant dirty layer (14).

2. A two-stage long stroke hydraulic cylinder as claimed in claim 1, wherein: one end of the piston rod (11) penetrates through the inner cylinder body (5), and a second oil injection pipe (12) and a second oil outlet pipe (13) are respectively arranged on one side of the outer cylinder body (2).

3. A two-stage long stroke hydraulic cylinder as claimed in claim 1, wherein: one end of the inner cylinder body (5) is provided with a pressing block (7) through a screw, and the pressing block (7) is opposite to the touch end of the pressure-sensitive switch (8).

4. A two-stage long stroke hydraulic cylinder as claimed in claim 1, wherein: the stain resistant layer (14) is a fluorinated silicon modified coating.

5. A two-stage long stroke hydraulic cylinder as claimed in claim 1, wherein: the top one end of outer barrel (2) is provided with first notes oil pipe (1), the bottom one end of outer barrel (2) is provided with first oil outlet pipe (15).