CN213144919U

CN213144919U - High-strength integrated rotary oil cylinder

Info

Publication number: CN213144919U
Application number: CN202021662465.0U
Authority: CN
Inventors: 常磊
Original assignee: Zhangjiagang Sumte Hydraulic Technology Co ltd
Current assignee: Zhangjiagang Sumte Hydraulic Technology Co ltd
Priority date: 2020-08-11
Filing date: 2020-08-11
Publication date: 2021-05-07
Anticipated expiration: 2030-08-11

Abstract

The utility model discloses an integral type rotary cylinder of high strength, the installation comprises a sleeve, the intraductal movable block that is provided with of cover, drive assembly is connected to the movable block, under drive assembly's effect, the movable block can be moved along the inside pipe wall of cover, be provided with the rack on the movable block, and be provided with the opening on the sleeve, and the rack exposes at the opening part, drive assembly includes the piston rod, set up the piston head on the piston rod, the piston head sets up in the drive intracavity of the inside of movable block, and the inner wall reciprocating seal of piston head and drive chamber, the piston rod passes the drive chamber both sides of movable block, and be connected with sheathed tube both ends, drive assembly still advances oil pipe including advancing, it sets up two sets ofly to advance oil pipe, and two sets of advance oil pipe can let. The integrated rotary oil cylinder reduces the length of the rotary oil cylinder, is convenient to transport and is not easy to damage in the transportation process; the abrasion of the piston rod caused by concentricity is reduced; reduce the leakage point, increase piston rod intensity.

Description

High-strength integrated rotary oil cylinder

Technical Field

The utility model relates to a rotary cylinder equipment field especially relates to an integral type rotary cylinder of compound high strength.

Background

The swivel cylinder is a close fitting that integrates very high torque using hydraulic pressure in a small space. While the power is high they can still be controlled accurately and easily, and the swing cylinders have been successfully used in almost all applications requiring limited rotational movement and high torque. The structure of current rotary cylinder is external rotary cylinder, the connecting shaft length of this kind of rotary cylinder, easily cause because of the wearing and tearing that the concentricity problem produced, and the piston rod is thinner moreover, and intensity is lower, also takes place wearing and tearing easily, after taking place wearing and tearing, produce the leakage point, in case take place inside and reveal, then rotary cylinder can not effectual work, and current rotary cylinder length is longer moreover, easily takes place to damage in the transportation, also can cause the inside leakage that takes place of rotary cylinder equally, lead to rotary cylinder's trouble.

Therefore, the inventor of the present invention aims to provide an integrated slewing cylinder with high strength.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above disadvantages, an object of the present invention is to provide an integral rotary cylinder with high strength.

In order to achieve the above purpose, the utility model discloses a technical scheme is: a high-strength integrated rotary oil cylinder comprises a sleeve, a moving block is arranged in the sleeve, the moving block is connected with a driving component, under the action of the driving component, the moving block can move along the inner wall of the sleeve, and a rack is arranged on the moving block, an opening is arranged on the sleeve, the rack is always exposed out of the opening, the driving component comprises a piston rod, the piston rod is provided with a piston head which is arranged in a driving cavity in the moving block, the piston head and the inner wall of the driving cavity are sealed in a reciprocating way, the piston rod penetrates through two sides of the driving cavity of the moving block, and is connected with two ends of the sleeve, the driving component also comprises two groups of oil inlet pipes, and the two groups of oil inlet pipes can respectively introduce hydraulic oil into two sides of the piston head, and the hydraulic oil is always in the driving cavity.

Preferably, the two ends of the sleeve are respectively provided with a left end cover and a right end cover, and the left end cover and the right end cover are respectively used for fixing the piston rod. The stability of the integrated rotary oil cylinder is ensured.

Preferably, the piston head is integral with the piston rod and the diameter of the piston rod is less than the diameter of the piston head. The diameter of the piston rod can be increased, and the strength is improved.

Preferably, the oil inlet pipes are arranged in the piston rod and along the axis of the piston rod, and are communicated to the outer side of the piston rod at a position close to the piston head, and meanwhile, the two groups of oil inlet pipes are symmetrically arranged on two sides of the piston head. Namely, the two groups of oil inlet pipes are ensured to drive the moving block to move along the axis of the piston rod through the change of the amount of hydraulic oil.

Preferably, the piston head is sealed to the inner wall of the drive chamber by a reciprocating rubber seal. The moving block can smoothly move, the driving cavity can be divided into two parts through the piston head, the reciprocating movement of the moving block is realized by changing the size of the driving cavity on two sides of the piston head, namely, the rack is driven to reciprocate, and the gear is driven to rotate through the rack, so that the rotation of the rotary oil cylinder is realized.

Preferably, a sealing ring is arranged at the position where the moving block is contacted with the piston rod. Therefore, hydraulic oil in the driving cavity in the moving block is prevented from leaking, and driving timeliness is guaranteed.

Preferably, the moving block is provided with a wear-resistant belt, and the wear-resistant belt is arranged at a position where the moving block is contacted with the sleeve. I.e. ensuring smooth movement of the traveling block along the casing.

The high-strength integrated rotary oil cylinder has the advantages that the integrated rotary oil cylinder reduces the length of the rotary oil cylinder, is convenient to transport and is not easy to damage in the transportation process; the connecting pieces are reduced, and the abrasion of the piston rod caused by the concentricity requirement is reduced; and the leakage points are reduced, and the strength of the piston rod is increased through the increase of the shaft diameter.

Drawings

Fig. 1 is a schematic structural diagram of a high-strength integrated rotary cylinder.

Fig. 2 is a partially enlarged schematic view of fig. 1.

Fig. 3 is a schematic structural diagram of an old-style rotary cylinder.

In the figure:

1-sleeve, 2-moving block, 3-driving component, 4-rack, 5-left end cover, 6-right end cover, 7-reciprocating rubber, 8-sealing ring, 9-wear-resistant belt,

11-an opening(s) is (are),

21-the drive chamber is provided with a drive chamber,

31-piston rod, 32-piston head, 33-oil inlet pipe.

Detailed Description

The following detailed description of the preferred embodiments of the present invention will be provided in conjunction with the accompanying drawings, so as to enable those skilled in the art to more easily understand the advantages and features of the present invention, and thereby define the scope of the invention more clearly and clearly.

Referring to fig. 1-3, the high-strength integrated rotary cylinder in this embodiment includes a casing 1, a moving block 2 is disposed in the casing 1, the moving block 2 is connected to a driving assembly 3, the moving block 2 can move along an inner wall of the casing 1 under the action of the driving assembly 3, a rack 4 is disposed on the moving block 2, an opening 11 is disposed on the casing 1, and the rack 4 is always exposed at the opening 11, the driving assembly 3 includes a piston rod 31, a piston head 32 is disposed on the piston rod 31, the piston head 32 is disposed in a driving cavity 21 inside the moving block 2, the piston head 32 is sealed with the inner wall of the driving cavity 21 in a reciprocating manner, the piston rod 31 passes through two sides of the driving cavity 21 of the moving block 2 and is connected to two ends of the casing 1, the driving assembly 3 further includes oil inlet pipes 33, two sets of oil inlet pipes 33 are disposed, and two sets of oil inlet pipes 33 can respectively introduce hydraulic, and hydraulic oil is always in the drive chamber 21.

The sleeve pipe 1 both ends set up left end lid 5 and right-hand member lid 6 respectively, and left end lid 5 and right-hand member lid 6 supply piston rod 31 fixed respectively. The stability of the integrated rotary oil cylinder is ensured.

The piston head 32 is provided integrally with the piston rod 31, and the diameter of the piston rod 31 is smaller than that of the piston head 32. That is, the diameter of the piston rod 31 can be increased, and the strength is improved.

The oil inlet pipes 33 are arranged in the piston rod 31 and along the axis of the piston rod 31, and are open to the outside of the piston rod 31 at a position close to the piston head 32, while two sets of oil inlet pipes 33 are symmetrically arranged on both sides of the piston head 32. Namely, the two sets of oil inlet pipes 33 are ensured to drive the moving block 2 to move along the axis of the piston rod 31 through the change of the amount of the hydraulic oil.

The piston head 32 is sealed from the inner wall of the drive chamber 21 by the reciprocating rubber 7. The moving block 2 is guaranteed to move smoothly, the driving cavity 21 can be divided into two parts through the piston head 32, reciprocating movement of the moving block 2 is achieved by changing the size of the driving cavity 21 on the two sides of the piston head 32, namely the rack 4 is driven to reciprocate, the gear is driven to rotate through the rack 4, and rotation of the rotary oil cylinder is achieved.

A seal ring 8 is provided at a position where the moving block 2 contacts the piston rod 31. Namely, the hydraulic oil of the driving cavity 21 in the moving block 2 is ensured not to leak, and the driving is ensured to be timely.

The moving block 2 is provided with a wear-resistant belt 9, and the wear-resistant belt 9 is arranged at the position where the moving block 2 is contacted with the sleeve 1. I.e. to ensure a smooth movement of the mobile mass 2 along the casing 1.

Referring to fig. 3, the old rotary cylinder has a long length, and the connection between the rack 4 and the piston rod 31 is difficult to ensure concentricity, so that the rack and the piston rod are easy to shake, the piston rod 31 is worn, and leakage inside the rotary cylinder may occur.

The high-strength integrated rotary oil cylinder has the advantages that the length of the rotary oil cylinder is reduced, the transportation is convenient, and the integrated rotary oil cylinder is not easy to damage in the transportation process; the connecting pieces are reduced, and the abrasion of the piston rod 31 caused by the concentricity requirement is reduced; furthermore, the leakage point is reduced, and the strength of the piston rod 31 is increased by increasing the shaft diameter.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered in the protection scope of the present invention.

Claims

1. The utility model provides an integral type rotary cylinder of high strength which characterized in that: the movable block is connected with a driving assembly, the movable block can move along the inner wall of a sleeve under the action of the driving assembly, a rack is arranged on the movable block, an opening is formed in the sleeve, the rack is exposed out of the opening all the time, the driving assembly comprises a piston rod, a piston head is arranged on the piston rod, the piston head is arranged in a driving cavity in the movable block and is in reciprocating sealing with the inner wall of the driving cavity, the piston rod penetrates through two sides of the driving cavity of the movable block and is connected with two ends of the sleeve, the driving assembly further comprises oil inlet pipes, the oil inlet pipes are arranged in two groups, the oil inlet pipes can enable hydraulic oil to be led into two sides of the piston head respectively, and the hydraulic oil is located in the driving cavity all the time.

2. The high-strength integrated rotary oil cylinder according to claim 1, characterized in that: the two ends of the sleeve are respectively provided with a left end cover and a right end cover, and the left end cover and the right end cover are respectively used for fixing the piston rod.

3. The high-strength integrated rotary oil cylinder according to claim 1, characterized in that: the piston head and the piston rod are integrally arranged, and the diameter of the piston rod is smaller than that of the piston head.

4. The high-strength integrated rotary oil cylinder according to claim 1, characterized in that: the oil inlet pipes are arranged in the piston rod and along the axis of the piston rod, and are communicated to the outer side of the piston rod at the position close to the piston head, and meanwhile, the two groups of oil inlet pipes are symmetrically arranged on two sides of the piston head.

5. The high-strength integrated rotary oil cylinder according to claim 1, characterized in that: the piston head and the inner wall of the driving cavity are sealed through reciprocating rubber.

6. The high-strength integrated rotary oil cylinder according to claim 1, characterized in that: and a sealing ring is arranged at the contact position of the moving block and the piston rod.

7. The high-strength integrated rotary oil cylinder according to claim 1, characterized in that: the moving block is provided with a wear-resistant belt, and the wear-resistant belt is arranged at the position where the moving block is contacted with the sleeve.