CN211501161U

CN211501161U - Double-acting piston type oil cylinder for press-mounting machine

Info

Publication number: CN211501161U
Application number: CN201922376738.9U
Authority: CN
Inventors: 贝科东; 卫海蓉
Original assignee: Jiangsu Mingou Precision Machinery Co ltd
Current assignee: Jiangsu Mingou Precision Machinery Co ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-09-15
Anticipated expiration: 2029-12-26

Abstract

The utility model discloses a double-acting piston hydro-cylinder for pressure equipment machine relates to double-acting piston hydro-cylinder technical field, and is not enough for solving current double-acting piston hydro-cylinder stability, leads to the problem of skew easily. The upper end and the lower extreme of cylinder body all are provided with the protective cover retainer plate, the outside of cylinder body is provided with first mount, the below of first mount is provided with the second mount, first mount and second mount upper end all are provided with the nut, the inside of cylinder body is provided with the piston rod, the outside of piston rod is provided with the uide bushing, be provided with first sealing washer between cylinder body and the uide bushing, be provided with the second sealing washer between uide bushing and the piston rod, the upper end of second sealing washer is provided with the retaining ring, the below of uide bushing is provided with the retaining ring, the lower extreme of retaining ring is provided with the piston, be provided with the third sealing washer between piston and the cylinder body third sealing washer upper end is provided with the uide ring.

Description

Double-acting piston type oil cylinder for press-mounting machine

Technical Field

The utility model relates to a double-acting piston hydro-cylinder technical field specifically is a double-acting piston hydro-cylinder for pressure equipment machine.

Background

The double-acting hydraulic cylinder is a hydraulic cylinder which can input pressure oil from two sides of a piston, and is often used as a driving component of a jack, an actuator of the double-acting hydraulic cylinder is a main output device of a hydraulic motion system, although the size, the type and the design structure are different, usually the part can be observed most, the actuator converts the liquid pressure into rapid and controllable linear motion or force so as to drive a load, a single-acting hydraulic cylinder is a hydraulic cylinder, the motion in one direction is realized by oil pressure, external forces such as dead weight or a spring are used for returning, only one end of two cavities of the hydraulic cylinder is provided with oil, the other end of the two cavities of the hydraulic cylinder is contacted with air, the double-acting hydraulic cylinder is provided with oil in the two cavities, the motion in the two directions is realized by the oil pressure, and the force generated when the piston extends is slightly larger than the force generated when the piston retracts, although the pressure received on each piston is uniform, the force is different because the effective area exposed to the hydraulic fluid is different.

However, the existing double-acting piston type oil cylinder is not enough in stability and is easy to cause deviation; therefore, the existing requirements are not met, and the double-acting piston type oil cylinder for the press fitting machine is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a double-acting piston hydro-cylinder for pressure equipment machine to solve the current double-acting piston hydro-cylinder stability that proposes in the above-mentioned background art not enough, lead to the problem of skew easily.

In order to achieve the above object, the utility model provides a following technical scheme: a double-acting piston type oil cylinder for a press mounting machine comprises a cylinder body, wherein protective cover fixing rings are arranged at the upper end and the lower end of the cylinder body respectively, the protective cover fixing rings and the cylinder body are of an integral structure, threads are arranged on the outer wall of each protective cover fixing ring, a first fixing frame is arranged outside the cylinder body, a second fixing frame is arranged below the first fixing frame, nuts are arranged at the upper ends of the first fixing frame and the second fixing frame respectively, a first oil inlet and outlet is arranged at one side of the cylinder body, a second oil inlet and outlet is arranged below the first oil inlet and outlet, an air leakage valve mechanism is arranged at the other side of the cylinder body, a piston rod is arranged inside the cylinder body, a guide sleeve is arranged outside the piston rod, a first sealing ring is arranged between the cylinder body and the guide sleeve, a second sealing ring is arranged between the guide sleeve and the piston rod, a guard ring is arranged below the guide sleeve, a piston is arranged at the lower end of the guard ring, a third sealing ring is arranged between the piston and the cylinder body, and a guide ring is arranged at the upper end of the third sealing ring.

Preferably, the upper end of protective cover retainer plate is provided with the protective cover, and the protective cover passes through screw thread and protective cover retainer plate threaded connection.

Preferably, be provided with the post of stabilizing between first mount and the second mount, and stabilize the post and run through first mount and second mount, stabilize the post and pass through nut and the equal threaded connection of first mount and second mount, and stabilize the post and be provided with four.

Preferably, the upper end of the air leakage valve mechanism is provided with a third oil inlet and outlet.

Preferably, the joints of the cylinder body and the port of the piston rod are provided with dustproof rings.

Preferably, the outer wall of the piston rod is provided with a buffer sleeve, and the buffer sleeve is detachably connected with the piston rod.

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

1. the utility model discloses a set up the stabilization column between first mount and second mount, can increase stability when using on the pressure equipment machine, even fall over to the ground, also can protect the cylinder body not impaired to a certain extent, set up the third oil inlet in air leakage valve door mechanism upper end, the cooperation second oil inlet and outlet of third oil inlet, prevent that the piston rod from controlling the skew, stability has been increased, set up the cushion collar at the piston rod outer wall, play certain cushioning effect when the piston rod functions, prevent that the piston rod function power is too big, the emergence accident.

2. Through setting up the dust ring in cylinder body and piston rod port handing-over department, the upper and lower port sets up two, prevents that the dust from adsorbing in the piston rod area advances the cylinder body, reduces unexpected emergence, and protective cover retainer plate upper end sets up the protective cover, covers the shield when not using, and dust pollution, increase life can be fine prevents.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the cylinder body of the present invention;

fig. 3 is a schematic view of the internal structure of the protective cover retainer ring of the present invention;

in the figure: 1. a cylinder body; 2. a first fixing frame; 3. a second fixing frame; 4. a stabilization post; 5. a nut; 6. a protective cover fixing ring; 7. a protective cover; 8. a third oil inlet and outlet; 9. a first oil inlet and outlet; 10. a second oil inlet and outlet; 11. a blow-off valve mechanism; 12. a guide sleeve; 13. a first seal ring; 14. a second seal ring; 15. a dust ring; 16. a buffer sleeve; 17. a retainer ring; 18. protecting the ring; 19. a piston; 20. a third seal ring; 21. a guide ring; 22. a thread; 23. a piston rod.

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.

Referring to fig. 1-3, the present invention provides an embodiment: a double-acting piston type oil cylinder for a press mounting machine comprises a cylinder body 1, wherein a protective cover fixing ring 6 is arranged at the upper end and the lower end of the cylinder body 1, the protective cover fixing ring 6 and the cylinder body 1 are of an integral structure, threads 22 are arranged on the outer wall of the protective cover fixing ring 6, a first fixing frame 2 is arranged outside the cylinder body 1, a second fixing frame 3 is arranged below the first fixing frame 2, nuts 5 are arranged at the upper ends of the first fixing frame 2 and the second fixing frame 3, a first oil inlet and outlet 9 is arranged at one side of the cylinder body 1, a second oil inlet and outlet 10 is arranged below the first oil inlet and outlet 9, a door leakage mechanism 11 is arranged at the other side of the cylinder body 1, a piston rod 23 is arranged inside the cylinder body 1, a guide sleeve 12 is arranged outside the piston rod 23, a first sealing ring 13 is arranged between the cylinder body 1 and the guide sleeve 12, a retainer ring 17 is arranged at the upper end of the second sealing ring 14, a guard ring 18 is arranged below the guide sleeve 12, a piston 19 is arranged at the lower end of the guard ring 18, a third sealing ring 20 is arranged between the piston 19 and the cylinder body 1, and a guide ring 21 is arranged at the upper end of the third sealing ring.

Further, the upper end of the protective cover retainer plate 6 is provided with the protective cover 7, and the protective cover 7 is in threaded connection with the protective cover retainer plate 6 through the threads 22, so that when the protective cover 7 is not used, the protective piston rod 23 can be well protected from damage by the protective cover 7.

Further, be provided with between first mount 2 and the second mount 3 and stabilize post 4, and stabilize post 4 and run through first mount 2 and second mount 3, stabilize post 4 and pass through nut 5 and the equal threaded connection of first mount 2 and second mount 3, and stabilize post 4 and be provided with four, the real receipts that drop can protect cylinder body 1 not impaired, also makes things convenient for the installation of cylinder body 1 and pressure equipment machine.

Further, the upper end of the air leakage valve mechanism 11 is provided with a third oil inlet and outlet 8 which is matched with the second oil inlet and outlet 10 to apply pressure together, so that the piston rod 23 is prevented from displacement, and the overall stability is improved.

Furthermore, dust rings 15 are arranged at the joints of the cylinder body 1 and the ports of the piston rod 23, so that sundries are prevented from being adsorbed on the piston rod 23 and being brought into the cylinder body 1.

Further, the outer wall of piston rod 23 is provided with cushion collar 16, and cushion collar 16 is detachable with piston rod 23 and is connected, prevents that piston rod 23 working force is too big, causes the injury to equipment, has increased the stability of equipment.

The working principle is as follows: when the oil pressure protection device is used, the protection cover 7 is rotated, the cylinder body 1 is fixed, oil is arranged at the front and the back of the first oil inlet and outlet 9 and the second oil inlet and outlet 10, so that double effects are achieved, oil enters an oil bin from the first oil inlet and outlet 9 and exerts pressure, the piston rod 23 operates downwards, the third oil inlet and outlet 8 is matched with the second oil inlet and outlet 10 to exert pressure upwards, the piston rod 23 operates upwards, the guide sleeve 12 provides an operation track for the piston rod 23, the buffer sleeve 16 prevents danger caused by overlarge operation force and increases stability, the dust ring 15 isolates impurities adsorbed on the piston rod 23 to the outside and prevents the impurities from entering the cylinder body 1, the first sealing ring 13, the second sealing ring 14 and the third sealing ring 20 prevent air leakage and assist in realizing an oil pressure principle, when an accident occurs due to overlarge pressure, the pressure can be quickly released through the air leakage valve mechanism 11, the safety of the device is guaranteed, the third oil inlet and outlet, the piston rod 23 is prevented from being deviated during operation, and the overall stability is increased.

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 double-acting piston hydro-cylinder for press mounting machine, includes cylinder body (1), its characterized in that: the upper end and the lower end of the cylinder body (1) are both provided with a protective cover fixing ring (6), the protective cover fixing ring (6) and the cylinder body (1) are of an integral structure, the outer wall of the protective cover fixing ring (6) is provided with threads (22), a first fixing frame (2) is arranged outside the cylinder body (1), a second fixing frame (3) is arranged below the first fixing frame (2), nuts (5) are arranged at the upper ends of the first fixing frame (2) and the second fixing frame (3), a first oil inlet and outlet (9) is arranged on one side of the cylinder body (1), a second oil inlet and outlet (10) is arranged below the first oil inlet and outlet (9), an air leakage valve door mechanism (11) is arranged on the other side of the cylinder body (1), a piston rod (23) is arranged inside the cylinder body (1), a guide sleeve (12) is arranged outside the piston rod (23), be provided with first sealing washer (13) between cylinder body (1) and uide bushing (12), be provided with second sealing washer (14) between uide bushing (12) and piston rod (23), the upper end of second sealing washer (14) is provided with retaining ring (17), the below of uide bushing (12) is provided with retaining ring (18), the lower extreme of retaining ring (18) is provided with piston (19), be provided with third sealing washer (20) between piston (19) and cylinder body (1) third sealing washer upper end is provided with guide ring (21).

2. A double-acting piston cylinder for a press-fitting machine according to claim 1, characterized in that: the upper end of protective cover retainer plate (6) is provided with protective cover (7), and protective cover (7) pass through screw thread (22) and protective cover retainer plate (6) threaded connection.

3. A double-acting piston cylinder for a press-fitting machine according to claim 1, characterized in that: be provided with between first mount (2) and second mount (3) and stabilize post (4), and stabilize post (4) and run through first mount (2) and second mount (3), stabilize post (4) and pass through nut (5) and first mount (2) and the equal threaded connection of second mount (3), and stabilize post (4) and be provided with four.

4. A double-acting piston cylinder for a press-fitting machine according to claim 1, characterized in that: and a third oil inlet and outlet (8) is arranged at the upper end of the air leakage valve mechanism (11).

5. A double-acting piston cylinder for a press-fitting machine according to claim 1, characterized in that: and dust rings (15) are arranged at the joints of the ports of the cylinder body (1) and the piston rod (23).

6. A double-acting piston cylinder for a press-fitting machine according to claim 1, characterized in that: the outer wall of the piston rod (23) is provided with a buffer sleeve (16), and the buffer sleeve (16) is detachably connected with the piston rod (23).