CN111102266A

CN111102266A - Telescopic rotary hydraulic cylinder

Info

Publication number: CN111102266A
Application number: CN201811263404.4A
Authority: CN
Inventors: 不公告发明人
Original assignee: Jiangdu District Wujian Xingye Machinery Factory
Current assignee: Jiangdu District Wujian Xingye Machinery Factory
Priority date: 2018-10-28
Filing date: 2018-10-28
Publication date: 2020-05-05

Abstract

The invention discloses a telescopic rotary hydraulic cylinder which comprises a base, wherein a hydraulic cylinder is fixedly arranged at the upper end of the base, a protective shell is fixedly arranged at the upper end of the base, which is positioned outside the hydraulic cylinder, a moving block is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder, the upper end of the moving block is vertically and rotatably connected with a screw rod, a first threaded hole is formed in the upper end of the protective shell, the rod wall of the screw rod is in threaded connection with the protective shell through the first threaded hole, the upper end of the rod wall of the screw rod extends to the outside of the protective shell, an L-shaped supporting plate is arranged below the base, a T-shaped sliding groove is transversely formed in the upper end of a horizontal part of the L-shaped supporting plate, a T-shaped sliding block is slidably connected inside the T-shaped. The hydraulic cylinder is simple in structure, the use cost is reduced, and the practicability of the hydraulic cylinder is improved.

Description

Telescopic rotary hydraulic cylinder

Technical Field

The invention relates to the technical field of hydraulic cylinders, in particular to a telescopic rotary hydraulic cylinder.

Background

The hydraulic cylinder is a hydraulic actuating element for converting hydraulic energy into mechanical energy, and when the hydraulic actuating element is used for realizing reciprocating motion, a speed reducing device can be omitted, and the hydraulic cylinder has no transmission clearance, is stable in motion and can be widely applied to hydraulic systems of various machines. The traditional hydraulic cylinder comprises a cylinder body, a piston and a piston rod, wherein an oil inlet and an oil outlet are formed in the cylinder body, the piston and the piston rod move through the inlet and the outlet of hydraulic oil, various control functions are realized through external components, the movement of the hydraulic rod is linear movement, and the driven external components also move linearly along with the movement.

In the actual production process, many external components driven by the hydraulic cylinder not only need linear stroke, but also need to have rotary motion simultaneously, but the hydraulic cylinder itself can not realize rotary motion, and in order to satisfy the needs of actual production, the rotary hydraulic cylinder is indispensable. At present, the commonly adopted method is to add other hydraulic systems, and the defects of complex structure and higher cost of the whole hydraulic system exist.

Disclosure of Invention

The invention aims to solve the problems that in the prior art, the telescopic rotary hydraulic cylinder is additionally provided with other hydraulic systems, and the defects of complex structure and high cost of the whole hydraulic system exist.

In order to achieve the purpose, the invention adopts the following technical scheme:

a telescopic rotary hydraulic cylinder comprises a base, a hydraulic cylinder is fixedly arranged at the upper end of the base, a protective shell is fixedly arranged at the upper end of the base outside the hydraulic cylinder, a moving block is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder, the upper end of the moving block is vertically and rotatably connected with a screw rod, the upper end of the protective shell is provided with a first threaded hole, the rod wall of the screw rod is in threaded connection with the protective shell through the first threaded hole, the upper end of the rod wall extends to the outside of the protective shell, an L-shaped supporting plate is arranged below the base, a T-shaped sliding groove is transversely arranged at the upper end of the horizontal part of the L-shaped supporting plate, the interior of the T-shaped sliding chute is connected with a T-shaped sliding block in a sliding way, the upper end of the T-shaped sliding block is fixedly connected with a clamping plate, the base is located between the L-shaped supporting plate and the clamping plate and is fixedly connected with the L-shaped supporting plate and the clamping plate through bolts and nuts.

Preferably, a rolling bearing is embedded in the upper end of the moving block, and the lower end of the screw is rotatably connected with the moving block through the rolling bearing.

Preferably, the inner wall of the upper end of the protective shell is fixedly provided with a reinforcing block, the lower end of the reinforcing block is provided with a second threaded hole, and the rod wall of the screw rod is in threaded connection with the reinforcing block through the second threaded hole.

Preferably, the upper end of the screw rod is fixedly provided with a mounting plate.

Preferably, the two sides of the horizontal part of the L-shaped supporting plate are both fixedly provided with mounting seats, and the upper ends of the two mounting seats are both fixedly provided with expansion bolts.

Preferably, the bottom of the side wall of the protective shell is provided with an oil pipe hole.

Compared with the prior art, the invention provides a telescopic rotary hydraulic cylinder, which has the following beneficial effects:

1. this flexible rotation type pneumatic cylinder, through setting up at the inside pneumatic cylinder of protecting crust, the piston rod of pneumatic cylinder drives the movable plate rebound, and the movable block promotes the screw rod rebound, because the screw rod passes through first screw hole and protecting crust threaded connection to also can realize rotatory function when the screw rod rebound, and then can realize the flexible rotatory function of pneumatic cylinder, reduced use cost.

2. This flexible rotation type pneumatic cylinder through setting up at base lower extreme L shape backup pad, splint, bolt and nut, is convenient for adjust the angle of base to can adjust the angle of use of pneumatic cylinder, increased the practicality of pneumatic cylinder.

The parts which are not involved in the device are the same as or can be realized by adopting the prior art, the hydraulic cylinder has a simple structure, the use cost is reduced, and the practicability of the hydraulic cylinder is improved.

Drawings

FIG. 1 is a schematic structural view of a telescopic rotary hydraulic cylinder according to the present invention;

fig. 2 is an enlarged view of the connection structure of the base with the L-shaped supporting plate and the clamping plate in fig. 1.

In the figure: the device comprises a base 1, a hydraulic cylinder 2, a protective shell 3, a moving block 4, a screw 5, a supporting plate 6L, a sliding block 7T, a clamping plate 8, a bolt 9, a nut 10, an installation seat 11, a reinforcing block 12, a rolling bearing 13 and an installation plate 14.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the 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, are merely for convenience in describing the present invention and simplifying the 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 thus, should not be construed as limiting the present invention.

Referring to fig. 1-2, a telescopic rotary hydraulic cylinder comprises a base 1, a hydraulic cylinder 2 is fixedly arranged at the upper end of the base 1, a protective shell 3 is fixedly arranged at the upper end of the base 1, which is positioned outside the hydraulic cylinder 2, an oil pipe hole is arranged at the bottom of the side wall of the protective shell 3, a moving block 4 is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder 2, a screw rod 5 is vertically and rotatably connected with the upper end of the moving block 4, a rolling bearing 13 is embedded at the upper end of the moving block 4, the lower end of the screw rod 5 is rotatably connected with the moving block 4 through the rolling bearing 13, a first threaded hole is arranged at the upper end of the protective shell 3, the rod wall of the screw rod 5 is in threaded connection with the protective shell 3 through the first threaded hole, the upper end of the screw rod 5 extends to the outside, t shape spout has transversely been seted up to L shape backup pad 6's horizontal part upper end, the inside sliding connection of T shape spout has T shape slider 7, the upper end fixedly connected with splint 8 of T shape slider 7, base 1 is located between L shape backup pad 6 and the splint 8, base 1 passes through bolt 9 and nut 10 and L shape backup pad 6 and splint 8 fastening connection, the fixed boss 12 that is equipped with of upper end inner wall of protecting crust 3, the second screw hole has been seted up to the lower extreme of boss 12, the pole wall of screw rod 5 passes through second screw hole and boss 12 threaded connection, boss 12 can reduce the effort between screw rod 5 and the protecting crust 3, L shape backup pad 6's horizontal part both sides are all fixed and are equipped with mount pad 11, the upper end of two mount pads 11 is all fixed and is equipped with expansion bolts, can install L shape backup pad 6 and mechanical equipment.

In the invention, when the hydraulic cylinder 2 is arranged in the protective shell 3, the piston rod of the hydraulic cylinder 2 drives the movable plate 4 to move upwards, the movable block 4 pushes the screw rod 5 to move upwards, and the screw rod 5 is in threaded connection with the protective shell 3 through the first threaded hole, so that the screw rod 5 can also realize the rotating function while moving upwards, further the telescopic rotation function of the hydraulic cylinder 2 can be realized, the use cost is reduced, the angle of the base 1 can be conveniently adjusted through the L-shaped support plate 6, the clamping plate 8, the bolt 9 and the nut 10 which are arranged at the lower end of the base 1, the use angle of the hydraulic cylinder 2 can be adjusted, and the practicability of the hydraulic cylinder 2 is improved.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A telescopic rotary hydraulic cylinder comprises a base (1) and is characterized in that a hydraulic cylinder (2) is fixedly arranged at the upper end of the base (1), a protective shell (3) is fixedly arranged at the upper end of the base (1) and positioned outside the hydraulic cylinder (2), a moving block (4) is fixedly arranged at the tail end of a piston rod of the hydraulic cylinder (2), a screw rod (5) is vertically and rotatably connected to the upper end of the moving block (4), a first threaded hole is formed in the upper end of the protective shell (3), a rod wall of the screw rod (5) is in threaded connection with the protective shell (3) through the first threaded hole, the upper end of the rod wall extends to the outside of the protective shell (3), an L-shaped supporting plate (6) is arranged below the base (1), a T-shaped sliding groove is transversely formed in the upper end of a horizontal part of the L-shaped supporting plate (6), and, the upper end fixedly connected with splint (8) of T shape slider (7), base (1) is located between L shape backup pad (6) and splint (8), base (1) is through bolt (9) and nut (10) and L shape backup pad (6) and splint (8) fastening connection.

2. A telescopic rotary hydraulic cylinder according to claim 1, characterized in that a rolling bearing (13) is embedded in the upper end of the moving block (4), and the lower end of the screw (5) is rotatably connected with the moving block (4) through the rolling bearing (13).

3. A telescopic rotary hydraulic cylinder according to claim 1, characterized in that a reinforcing block (12) is fixedly arranged on the inner wall of the upper end of the protective shell (3), a second threaded hole is formed in the lower end of the reinforcing block (12), and the rod wall of the screw (5) is in threaded connection with the reinforcing block (12) through the second threaded hole.

4. A telescopic rotary hydraulic cylinder according to claim 1, characterised in that the upper end of the screw (5) is fixedly provided with a mounting plate (14).

5. A telescopic rotary hydraulic cylinder according to claim 1, characterised in that the L-shaped support plate (6) is provided with mounting seats (11) on both sides of the horizontal portion, and expansion bolts are provided on both upper ends of the two mounting seats (11).

6. A telescopic rotary hydraulic cylinder according to claim 1, characterised in that the bottom of the side wall of the casing (3) is provided with oil pipe holes.