CN211116926U

CN211116926U - Novel combined hydraulic cylinder

Info

Publication number: CN211116926U
Application number: CN201922087745.7U
Authority: CN
Inventors: 钟于民
Original assignee: Shaoguan Boshile Hydraulic Machinery Manufacturing Co ltd
Current assignee: Shaoguan Boshile Hydraulic Machinery Manufacturing Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-07-28
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a novel combined hydraulic cylinder, which is characterized in that an external drive shell is arranged on one side of a cylinder body, a drive mechanism is arranged in a drive chamber of the external drive shell, a second drive gear is arranged in the drive mechanism, a second piston rod is arranged at one end of a first piston rod, which is far away from a piston, and a thread is arranged on the outer side of the second piston rod, so that the second piston rod is meshed with the second drive gear, and the second drive gear can work to drive the second piston rod to rotate and extend; through set up a drive gear, a gear and No. two gears in actuating mechanism, set up a gear and No. two gears in a drive gear and No. two same one sides of drive gear, then make a gear be connected through the chain with No. two gears, can make a drive gear rotate and drive a gear, chain and No. two gears and remove, and then realize driving No. two drive gear and rotate, can further increase the extendible length range of this pneumatic cylinder.

Description

Novel combined hydraulic cylinder

Technical Field

The utility model relates to a modular pneumatic cylinder specifically is a novel modular 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 conventional hydraulic cylinder has a short telescopic stroke, and a defect occurs in practical use, so that improvement is needed.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel combination formula pneumatic 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 novel combined hydraulic cylinder comprises a cylinder body and a piston, wherein a first cavity, a second cavity and a third cavity are formed in the cylinder body, the piston is arranged in the first cavity, a first piston rod is arranged on one side of the piston, one end, far away from the piston, of the first piston rod extends into the second cavity to be arranged, a rack is fully distributed on one side of the first piston rod, a stop block is fixed on one end, far away from the piston, of the first piston rod, the stop block moves along the second cavity, screw holes are formed in the stop block and the first piston rod, a second piston rod is arranged in each screw hole, one end, far away from the stop block, of the second piston rod extends into the third cavity to be arranged, and threads are fully distributed on the second piston rod; one side of cylinder body is provided with the outer drive shell, the inside of outer drive shell is provided with the drive chamber, be provided with actuating mechanism in the drive chamber, this actuating mechanism includes drive gear and No. two drive gears, a drive gear meshes with the rack mutually, No. two drive gears mesh with No. two piston rods mutually.

As a further aspect of the present invention: the connecting shafts at two ends of the first driving gear and the second driving gear are mounted on the inner wall of the outer driving shell through bearings, a first gear and a second gear are fixed on the connecting shafts on the same side of the first driving gear and the second driving gear respectively, and the first gear and the second gear are connected through a chain.

As a further aspect of the present invention: a drive gear sets up in the outside that No. two chambeies are close to the one end in a chamber, No. two drive gear sets up the one side in No. three chambeies.

As a further aspect of the present invention: a through hole is formed in one end, away from the second cavity, of the third cavity, and one end, away from the stop block, of the second piston rod extends out of the through hole.

As a further aspect of the present invention: the second piston rod is connected in the screw hole through threads.

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

1. an outer driving shell is arranged on one side of a cylinder body, a driving mechanism is arranged in a driving chamber of the outer driving shell, a second driving gear is arranged in the driving mechanism, a second piston rod is arranged at one end, away from a piston, of a first piston rod, threads are arranged on the outer side of the second piston rod, the second piston rod is meshed with the second driving gear, the second driving gear can work to drive the second piston rod to rotate and extend, rotary expansion and contraction can be achieved, and the functionality of the hydraulic cylinder is improved conveniently;

2. through set up a drive gear in actuating mechanism, a gear and No. two gears, set up a gear and No. two gears in a drive gear and No. two same one side of drive gear, then make a gear be connected through the chain with No. two gears, can make a drive gear rotate and drive a gear, chain and No. two gear movements, and then realize driving No. two drive gear rotations, when realizing a drive gear pivoted effect, can also further increase the extendible length scope of this pneumatic cylinder, and then can increase the application range of this combination formula pneumatic cylinder.

Drawings

Fig. 1 is the whole structure diagram of the novel combined hydraulic cylinder of the utility model.

Fig. 2 is a structural diagram of a driving mechanism of the novel combined hydraulic cylinder of the present invention.

Fig. 3 is a connection diagram of the piston, the first piston rod and the second piston rod of the novel combined hydraulic cylinder.

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.

Referring to fig. 1 to 3, in an embodiment of the present invention, a novel combined hydraulic cylinder includes a cylinder body 1 and a piston 3, a first cavity 2, a second cavity 5 and a third cavity 9 are formed inside the cylinder body 1, the piston 3 is disposed inside the first cavity 2, a first piston rod 4 is disposed on one side of the piston 3, one end of the first piston rod 4, which is away from the piston 3, extends into the second cavity 5, a rack 7 is fully arranged on one side of the first piston rod 4, a stopper 6 is fixed on one end of the first piston rod 4, which is away from the piston 3, the stopper 6 moves along the second cavity 5, screw holes are disposed inside the stopper 6 and the first piston rod 4, a second piston rod 8 is disposed in the screw holes, one end of the second piston rod 8, which is away from the stopper 6, extends into the third cavity 9, and threads are fully arranged on the second piston rod 8; an outer driving shell 10 is arranged on one side of the cylinder body 1, a driving chamber 16 is arranged inside the outer driving shell 10, a driving mechanism is arranged in the driving chamber 16 and comprises a first driving gear 11 and a second driving gear 12, the first driving gear 11 is meshed with the rack 7, and the second driving gear 12 is meshed with the second piston rod 8; make liquid drive piston 3 and piston rod 4 remove, and then make the rack 7 of piston rod 4 one side drive actuating mechanism work, make actuating mechanism work drive No. two piston rods 8 again and rotate to make No. two piston rods 8 rotate and follow the rotatory flexible of screw, and then can increase the flexible scope of this pneumatic cylinder.

Referring to fig. 1 to 3, connecting shafts are fixed to both sides of a first driving gear 11 and a second driving gear 12, the connecting shafts at both ends are mounted on the inner wall of an outer driving shell 10 through bearings, a first gear 14 and a second gear 15 are respectively fixed to the connecting shafts on the same side of the first driving gear 11 and the second driving gear 12, and the first gear 14 and the second gear 15 are connected through a chain 13; the first driving gear 11 is arranged on the outer side of one end, close to the first cavity 2, of the second cavity 5, and the second driving gear 12 is arranged on one side of the third cavity 9; a through hole is formed in one end, away from the second cavity 5, of the third cavity 9, and one end, away from the stop block 6, of the second piston rod 8 extends out of the through hole; the second piston rod 8 is connected in the screw hole through threads; can make a drive gear 11 rotate and drive a gear 14, chain 13 and No. two gears 15 and remove, and then realize driving No. two drive gear 12 and rotate, when realizing a drive gear 11 pivoted effect, can also further increase the extendible length scope of this pneumatic cylinder, and then can increase the application range of this combination formula pneumatic cylinder.

The working principle is as follows: liquid enters the first cavity 2 through one end of the cylinder body 1 far away from the second cavity 5, so that the piston 3 moves towards one side of the second cavity 5 under the pushing of the pressure of the liquid, the rack 7 on the first piston rod 4 moves to drive the first driving gear 11 engaged with the rack to rotate, the first driving gear 11 rotates to drive the first gear 14 fixed at one side of the first driving gear to rotate, the first gear 14 rotates to drive the chain 13 at the outer side of the first driving gear to move, the chain 13 moves to drive the second gear 15 to rotate, the second gear 15 rotates to drive the second driving gear 12 fixedly connected with the second driving gear to rotate, the second driving gear 12 rotates to drive the second piston rod 8 to rotate, the second piston rod 8 rotates to move along the first piston rod 4 and the screw holes in the stop block 6 through threads, the expansion and contraction are realized, and the extension range of the second piston rod 8 is further increased, is convenient to use.

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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a novel combination formula pneumatic cylinder, includes cylinder body (1) and piston (3), its characterized in that: a first cavity (2), a second cavity (5) and a third cavity (9) are formed in the cylinder body (1), the piston (3) is arranged in the first cavity (2), one side of the piston (3) is provided with a first piston rod (4), one end of the first piston rod (4) far away from the piston (3) extends into the second cavity (5), one side of the first piston rod (4) is fully distributed with a rack (7), one end of the first piston rod (4) far away from the piston (3) is fixed with a stop block (6), the stop block (6) moves along the second cavity (5), screw holes are formed in the stop block (6) and the first piston rod (4), a second piston rod (8) is arranged in the screw hole, one end, far away from the stop block (6), of the second piston rod (8) extends into the third cavity (9) to be arranged, and threads are fully distributed on the second piston rod (8); one side of cylinder body (1) is provided with outer drive shell (10), the inside of outer drive shell (10) is provided with drive chamber (16), be provided with actuating mechanism in drive chamber (16), this actuating mechanism includes drive gear (11) and No. two drive gear (12), drive gear (11) mesh mutually with rack (7), No. two drive gear (12) mesh mutually with No. two piston rods (8).

2. A novel combined hydraulic cylinder as claimed in claim 1, characterized in that: the both sides of a drive gear (11) and No. two drive gear (12) all are fixed with the connecting axle, and the connecting axle at both ends all installs on the inner wall of outer drive shell (10) through the bearing, be fixed with a gear (14) and No. two gear (15) on the connecting axle with one side of a drive gear (11) and No. two drive gear (12) respectively, a gear (14) and No. two gear (15) are connected through chain (13).

3. A novel combined hydraulic cylinder as claimed in claim 1, characterized in that: no. one drive gear (11) set up in the outside that No. two chamber (5) are close to the one end of No. one chamber (2), No. two drive gear (12) set up the one side in No. three chamber (9).

4. A novel combined hydraulic cylinder as claimed in claim 1, characterized in that: a through hole is formed in one end, away from the second cavity (5), of the third cavity (9), and one end, away from the stop block (6), of the second piston rod (8) extends out of the through hole.

5. A novel combined hydraulic cylinder as claimed in claim 1, characterized in that: the second piston rod (8) is connected in the screw hole through threads.