Search

CN-224200900-U - Hollow cylinder for leveler

CN224200900UCN 224200900 UCN224200900 UCN 224200900UCN-224200900-U

Abstract

The utility model relates to the field of oil cylinders, in particular to a hollow oil cylinder for a leveling machine, which comprises a cylinder body assembly, wherein cylinder heads and cylinder tails are respectively arranged at two sides of the cylinder body assembly, a piston assembly is slidably arranged in the cylinder body assembly, a sleeve is arranged at the middle part between the cylinder tails and the piston assembly, a screw sleeve is arranged at the middle part of the other side in the piston assembly, and the middle parts of the screw sleeve and the sleeve are hollow. According to the utility model, through the arrangement of the Gelai ring, the dust ring, the first rod seal and the first O-shaped ring, the tightness of the cylinder body assembly, the cylinder head, the cylinder tail and the piston rod assembly after assembly is ensured, the oil leakage phenomenon is prevented, the piston is supported through the two second guide rings, the radial force is born, the piston and the cylinder body assembly are prevented from being directly contacted and worn by metal, the piston is kept to run in the middle, and the piston rod is supported through the arrangement of the first guide rings, the radial load is born, and the retaining rod is concentric with the cylinder head hole.

Inventors

  • MAO WENYUE
  • Jin Huaidou

Assignees

  • 江苏雷立曼机械科技有限公司

Dates

Publication Date
20260505
Application Date
20250604

Claims (5)

  1. 1. The hollow oil cylinder for the leveling machine comprises a cylinder body assembly (3), and is characterized in that cylinder heads (1) and cylinder tails (5) are respectively arranged on two sides of the cylinder body assembly (3), a piston assembly is arranged in the cylinder body assembly (3) in a sliding mode, a sleeve (7) is arranged in the middle of the space between the cylinder tails (5) and the piston assembly, a threaded sleeve (6) is arranged in the middle of the other side of the piston assembly, and the threaded sleeve (6) and the sleeve (7) are hollow; The piston assembly comprises a piston rod (2), a piston (4) is arranged on the outer wall of one side of the piston rod, and the piston (4) and the piston rod (2) are connected through a plurality of first fastening screws (16); a Gelai ring (14) is embedded in the middle of the outer wall of the piston (4), and the end face of the outer wall of the Gelai ring (14) is flush with the end face of the outer wall of the piston (4); A first chute is formed in the position, close to the cylinder tail (5), of the piston rod (2) and positioned at the sleeve (7), a second rod seal (19) and a Style seal (20) are sequentially embedded in the first chute, and the Style seal (20) is positioned at one side, close to the cylinder tail (5); the cylinder head (1) and the cylinder body assembly (3) are connected through a plurality of socket head cap screws (18), a first O-shaped ring (11) is embedded in the outer wall of the cylinder head (1), and the outer wall end face of the first O-shaped ring is flush with the outer wall end face of the cylinder head (1).
  2. 2. A hollow cylinder for a leveler according to claim 1, characterized in that the outer wall of the piston (4) and the two sides of the gurley (14) are embedded with second guide rings (13), and the outer wall end surface of the second guide rings (13) is flush with the outer wall end surface of the piston (4).
  3. 3. The hollow cylinder for the leveling machine according to claim 1, wherein a second sliding groove is formed in the cylinder head (1) and located at the piston rod (2), a dust ring (8), a first rod seal (9) and a first guide ring (10) are sequentially embedded in the second sliding groove, and the first guide ring (10) is located at one side close to the piston (4).
  4. 4. Hollow cylinder for levelers according to claim 1, characterized in that the threaded sleeve (6), the sleeve (7) and the piston rod (2) are all connected by means of a plurality of second fastening screws (17).
  5. 5. The hollow oil cylinder for the leveling machine according to claim 1, wherein a first oil port is formed in one side of the outer wall of the cylinder head (1), a second oil port is formed in one side of the cylinder head (1) close to the piston, a flow channel is formed between the first oil port and the second oil port in the cylinder head (1), a third oil port is formed in one side of the outer wall of the cylinder body assembly (3), and screw plugs (15) are arranged at the third oil port and the first oil port of the outer wall of the cylinder head (1).

Description

Hollow cylinder for leveler Technical Field The utility model relates to the technical field of oil cylinders, in particular to a hollow oil cylinder for a leveler. Background The hollow cylinder for the leveler is a hydraulic actuating element special for the leveler. The inside of the hydraulic cylinder is of a hollow structure, and hydraulic oil can pass through the hollow part, so that the hydraulic cylinder can realize bidirectional hydraulic drive during working. The sealing performance and rigidity of the existing hollow oil cylinder for the partial leveler are weak, the existing hollow oil cylinder is deformed after being used for a period of time due to larger pressure and friction, the sealing performance is easy to be reduced, and the oil leakage phenomenon occurs. Disclosure of utility model The utility model aims to solve the defects in the prior art and provides a hollow oil cylinder for a leveler. In order to achieve the above purpose, the present utility model adopts the following technical scheme: The hollow oil cylinder for the leveler comprises a cylinder body assembly, wherein cylinder heads and cylinder tails are respectively arranged on two sides of the cylinder body assembly, a piston assembly is slidably arranged in the cylinder body assembly, a sleeve is arranged in the middle between the cylinder tails and the piston assembly, a threaded sleeve is arranged in the middle of the other side in the piston assembly, and the threaded sleeve and the sleeve are hollow. Furthermore, it is preferable that the piston rod assembly comprises a piston rod, a piston is arranged on one side outer wall of the piston rod, and the piston rod are connected through a plurality of first fastening screws. In addition, the preferred structure is that the middle part of the outer wall of the piston is embedded with a Gelai ring, and the outer wall end face of the Gelai ring is flush with the outer wall end face of the piston. In addition, the preferred structure is, the outer wall of piston just lies in the both sides of gray circle and all inlays and be equipped with the second guide ring, and the outer wall terminal surface of second guide ring flushes with the outer wall terminal surface of piston. In addition, the piston rod is close to one side of the cylinder tail and is positioned at the sleeve pipe to form a first sliding groove, a second rod seal and a Style seal are sequentially embedded in the first sliding groove, and the Style seal is positioned at one side close to the cylinder tail. In addition, the cylinder head and the cylinder body assembly are connected through a plurality of inner hexagon screws, a first O-shaped ring is embedded in the outer wall of the cylinder head, and the outer wall end face of the first O-shaped ring is flush with the outer wall end face of the cylinder head. In addition, the cylinder head is internally provided with a second chute at the piston rod, a dust ring, a first rod seal and a first guide ring are sequentially embedded in the second chute, and the first guide ring is positioned at one side close to the piston. In addition, the screw sleeve, the sleeve and the piston rod are preferably all connected through a plurality of second fastening screws. In addition, the preferred structure is, first hydraulic fluid port has been seted up to one side of cylinder head outer wall, and the second hydraulic fluid port has been seted up to cylinder head rest piston one side, and is located between first hydraulic fluid port, the second hydraulic fluid port in the cylinder head and has seted up the third hydraulic fluid port, cylinder body assembly outer wall one side has been seted up, and cylinder body assembly outer wall is located third hydraulic fluid port department, cylinder head outer wall first hydraulic fluid port department all is provided with the plug screw. The beneficial effects of the utility model are as follows: According to the utility model, through the arrangement of the Gelai ring, the dust ring, the first rod seal and the first O-shaped ring, the tightness of the cylinder body assembly, the cylinder head, the cylinder tail and the piston rod assembly after assembly is ensured, the oil leakage phenomenon is prevented, the piston is supported through the two second guide rings, the radial force is born, the piston and the cylinder body assembly are prevented from being directly contacted and worn by metal, the piston is kept to run in the middle, and the piston rod is supported through the arrangement of the first guide rings, the radial load is born, and the retaining rod is concentric with the cylinder head hole. Drawings FIG. 1 is a schematic view of the internal structure of a hollow cylinder for a leveler according to the present utility model; fig. 2 is a schematic structural view of a hollow cylinder for a leveler according to the present utility model. In the figure, a cylinder head, a2 piston rod, a 3 cylinder body assembly, a 4 piston, a 5