Hydraulic oil cylinder with supporting stability enhancing structure

Abstract

The utility model relates to the technical field of oil cylinders, in particular to a hydraulic oil cylinder with a supporting stability enhancing structure, which comprises a cylinder body and a piston rod arranged in an inner cavity of the cylinder body, the outer end of the piston rod is connected with a hinge joint, the outer circle of the cylinder body is sleeved and connected with a first annular seat component, and one end of the piston rod is sleeved and connected with a second annular seat component. At least two supporting rod mechanisms are arranged on the outer side of the piston rod; the supporting rod mechanism comprises a supporting rod, one end of the supporting rod is detachably connected with a fixed earring base assembly, the fixed earring base assembly is arranged on the outer circle of the second annular base assembly in a sleeving mode and rotationally connected with the second annular base assembly, and the other end of the supporting rod is sleeved with a sliding earring base assembly. The sliding type lug ring base assembly is arranged on the outer circle of the first annular base assembly in a sleeving mode and rotationally connected with the first annular base assembly, and the supporting rod is in sliding connection with the sliding type lug ring base assembly. The supporting rod mechanism is reasonable in structure, and the supporting rod mechanism can be circumferentially adjusted along the piston rod, so that interference with surrounding parts is avoided, and the application range is widened.

Description

Technical Field

[0001] The utility model relates to the technical field of oil cylinders, in particular to a hydraulic oil cylinder with a structure for enhancing support stability. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy, producing linear reciprocating (or oscillating) motion. It features a simple structure and reliable operation. Using it to achieve reciprocating motion eliminates the need for a reduction gear, eliminates transmission backlash, and provides smooth motion. Therefore, it is widely used in the hydraulic systems of various machines. Publication (Announcement) No.: CN221810932U discloses an anti-deformation oil cylinder, comprising a positioning plate and a bearing baffle, wherein the positioning plate is fixedly mounted on the piston rod outside the cylinder barrel, the bearing baffle is fixedly mounted on the side wall of the cylinder barrel and close to the sealing end cover, the bearing baffle is provided with several bearing tapered holes distributed along the circumference of the cylinder barrel, a bearing rod is fixedly provided with a bearing rod passing through the bearing tapered hole, the outer wall of the bearing rod is abutted against the inner wall of the small hole end of the bearing tapered hole, the bearing rod on the positioning plate is passed through the bearing tapered hole on the bearing baffle, and the outer wall of the bearing rod is abutted against the inner wall of the bearing tapered hole. When the end of the piston rod is subjected to force to cause the piston rod to bend and deform, the bending stress generated is transmitted to the bearing baffle through the bearing rod, reducing the squeezing of the piston rod on the oil seal gasket and the dustproof gasket on the sealing end cover, thereby reducing the risk of deformation of the oil cylinder, preventing leakage of the medium inside the cylinder barrel, and extending the service life of the oil cylinder.

[0003] The above-mentioned existing technical solution has the following defects: since the positioning plate moves with the piston rod and the outer diameter of the positioning plate is larger than the diameter of the piston rod, the positioning plate is likely to interfere with the components around the hydraulic cylinder when moving, making it impossible to use the hydraulic cylinder normally, thereby reducing the scope of use of the hydraulic cylinder. Utility Model Content

[0004] The main technical problem solved by the utility model is to provide a hydraulic oil cylinder with an enhanced support stability structure. The support rod mechanism can be adjusted circumferentially along the piston rod to avoid interference with surrounding components, thereby expanding the scope of use of the hydraulic oil cylinder.

[0005] In order to solve the above technical problems, the present invention adopts a technical solution: providing a hydraulic oil cylinder with an enhanced support stability structure, comprising: a cylinder body and a piston rod arranged in the inner cavity thereof, the outer end of the piston rod being connected to a hinge joint, the outer circle of the cylinder body being sleeve-connected to a first annular seat assembly, the end of the piston rod near the hinge joint being sleeve-connected to a second annular seat assembly, and no less than two support rod mechanisms being arranged on the outer side of the piston rod;

[0006] The support rod mechanism includes a support rod, one end of which is detachably connected to a fixed earring seat assembly, the fixed earring seat assembly is sleeved on the outer circle of the second annular seat assembly and is rotatably connected thereto, the other end of the support rod is sleeved on a sliding earring seat assembly, the sliding earring seat assembly is sleeved on the outer circle of the first annular seat assembly and is rotatably connected thereto, and the support rod and the sliding earring seat assembly are in sliding connection.

[0007] By adopting the above technical solution, when in use, the hydraulic cylinder is installed on the mechanical equipment. During the operation of the hydraulic cylinder, the piston rod in the cylinder body extends and contracts. The fixed earring seat assembly at one end of the support rod is sleeved on the outer circle of the second annular seat assembly, and the sliding earring seat assembly at the other end is sleeved on the outer circle of the first annular seat assembly. When the piston rod moves axially, the second annular seat assembly drives the support rod to move axially along the piston rod. Through the use of the support rod, when the hydraulic cylinder is subjected to a large bending load, part of the bending load is shared by the support rod, thereby reducing the bending load borne by the piston rod and enhancing the supporting stability of the hydraulic cylinder. When the support rod and the fixed earring seat assembly interfere with the components around the piston rod during movement, the fixed earring seat assembly, the sliding earring seat assembly and the support rod can be operated to perform circumferential adjustment along the piston rod, thereby avoiding interference with the components around the piston rod, thereby expanding the scope of use of the hydraulic cylinder.

[0008] In a preferred example, the present invention can be further configured as follows: the first annular seat assembly includes a first annular seat and a first annular baffle connected to the outer circle of one end of the first annular seat, the first annular seat is sleeved with a first circular limiting plate at one end away from the first annular baffle, a plurality of first limiting screws are spirally penetrated at intervals on the outer circle of the first circular limiting plate, a plurality of grooves are spaced apart on the outer circle of the first annular seat that are adapted to the first limiting screws, a rubber ring is also sleeved on the first annular seat, and the first annular baffle is close to the tail of the cylinder body.

[0009] By adopting the above technical solution, the first annular seat is sleeved on the outer circle of the cylinder body and the two are fixedly connected. The use of the first annular baffle prevents the sliding earring seat assembly from sliding toward the tail of the cylinder body. The sliding earring seat assemblies on different support rod mechanisms are in abutment connection. The rubber ring is located between the first circular limit plate and the sliding earring seat assembly and is axially squeezed. The first circular limit plate is connected to the first annular seat by the first limit screw, so that the sliding earring seat assembly can rotate along the cylinder body under the action of external force.

[0010] In a preferred example, the present invention can be further configured as follows: the second annular seat assembly includes a second annular seat and a second annular baffle connected to the outer circle of one end of the second annular seat, the second annular seat is sleeved with a second circular limiting plate at one end away from the second annular baffle, the outer circle of the second circular limiting plate is spirally penetrated with a plurality of second limiting screws at intervals, the outer circle of the second annular seat is spaced apart with a plurality of grooves two adapted to the second limiting screws, the second annular seat is also sleeved with a rubber ring two, and the second annular baffle is close to the hinge joint.

[0011] By adopting the above technical solution, the second annular seat is sleeved on the outer circle of the piston rod and the two are fixedly connected. By using the second annular baffle, the fixed earring seat assembly is prevented from sliding toward the hinge joint. The fixed earring seat assemblies on different support rod mechanisms are in abutment connection. The second rubber ring is located between the second annular limit plate and the fixed earring seat assembly and is axially squeezed. The second annular limit plate is connected to the second annular seat by a second limit screw, so that the fixed earring seat assembly can rotate along the piston rod under the action of external force.

[0012] In a preferred example, the present invention can be further configured as follows: the fixed earring seat assembly includes a rotating ring and a fixed ear plate connected to the outer circle of the rotating ring, the fixed ear plate is provided with a mounting hole, the mounting hole is penetrated by the support rod, the support rod is threadedly connected with locking nuts located on both sides of the fixed ear plate, and the rotating ring is sleeved on the outer circle of the second annular seat.

[0013] By adopting the above technical solution, the rotating ring is sleeved on the outer circle of the second annular seat and the two are rotatably connected. After the support rod passes through the mounting hole, the support rod is fixedly connected to the fixed ear plate through the action of the locking nuts on both sides of the fixed ear plate.

[0014] In a preferred example, the present invention can be further configured as follows: the sliding earring seat assembly includes a rotating ring body and a supporting ear plate connected to the outer circle of the rotating ring body, the supporting ear plate is provided with a circular hole, a guide sleeve is connected in the circular hole, the guide sleeve is provided with the support rod, and the rotating ring body is sleeved on the outer circle of the first annular seat.

[0015] By adopting the above technical solution, the rotating ring body is sleeved on the outer circle of the first annular seat and the two are rotatably connected. The support rod passes through the guide sleeve, and the guide sleeve guides the support rod.

[0016] In summary, the present invention has at least one of the following beneficial technical effects:

[0017] 1. When the piston rod moves axially, the second annular seat assembly drives the support rod to move along the axial direction of the piston rod. Through the use of the support rod, when the hydraulic cylinder is subjected to a large bending load, part of the bending load is shared by the support rod, thereby reducing the bending load borne by the piston rod and enhancing the support stability of the hydraulic cylinder.

[0018] 2. When the support rod and the fixed earring seat assembly interfere with the parts around the piston rod during movement, the fixed earring seat assembly, the sliding earring seat assembly and the support rod can be operated to perform circumferential adjustment along the piston rod, thereby avoiding interference with the parts around the piston rod and expanding the use range of the hydraulic cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work. Among them:

[0020] Figure 1 It is a structural schematic diagram of a preferred embodiment of a hydraulic oil cylinder with an enhanced support stability structure of the utility model.

[0021] Figure 2 yes Figure 1 Schematic diagram of the structure of the first annular seat assembly.

[0022] Figure 3 yes Figure 1 Schematic diagram of the structure of the second annular seat assembly.

[0023] Figure 4 yes Figure 1 Schematic diagram of the structure of the fixed earring seat assembly.

[0024] Figure 5 yes Figure 1 Schematic diagram of the structure of the sliding earring seat assembly.

[0025] In the figure: 1, cylinder body; 2, piston rod; 3, hinged joint; 40, first annular seat assembly; 50, second annular seat assembly; 6, support rod; 70, fixed earring seat assembly; 80, sliding earring seat assembly; 41, first annular seat; 42, first annular baffle; 43, first circular stop plate; 44, first stop screw; 45, groove 1; 46, rubber ring 1;

[0026] 51. Second annular seat; 52. Second annular baffle; 53. Second circular stop plate; 54. Second stop screw; 55. Second groove; 56. Second rubber ring;

[0027] 71. Rotating ring; 72. Fixed lug; 73. Mounting hole; 74. Locking nut;

[0028] 81. Rotating ring; 82. Supporting ear plate; 83. Round hole; 84. Guide sleeve. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0030] It should be noted that these drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and therefore only show the components related to the present invention.

[0031] Reference Figures 1 to 5 , a hydraulic cylinder with an enhanced support stability structure disclosed in the utility model includes: a cylinder body 1 and a piston rod 2 arranged in its inner cavity, the outer end of the piston rod 2 is connected to a hinge head 3, the outer circle of the cylinder body 1 is sleeved with a first annular seat assembly 40, and the end of the piston rod 2 close to the hinge head 3 is sleeved with a second annular seat assembly 50, and no less than two support rod mechanisms are provided on the outside of the piston rod 2.

[0032] The support rod mechanism includes a support rod 6, one end of which is detachably connected to a fixed earring seat assembly 70, which is sleeved on the outer circle of the second annular seat assembly 50 and rotatably connected thereto, and the other end of the support rod 6 is sleeved on a sliding earring seat assembly 80, which is sleeved on the outer circle of the first annular seat assembly 40 and rotatably connected thereto, and the support rod 6 and the sliding earring seat assembly 80 are slidably connected.

[0033] The first annular seat assembly 40 includes a first annular seat 41 and a first annular baffle 42 connected to the outer circle of one end of the first annular seat 41. The first annular seat 41 and the first annular baffle 42 are of an integrated structural design. The first annular seat 41 is provided with a first annular limiting plate 43 at one end away from the first annular baffle 42. The outer circle of the first annular limiting plate 43 is spirally penetrated with a plurality of first limiting screws 44. The outer circle of the first annular seat 41 is provided with a plurality of grooves 45 adapted to the first limiting screws 44. A rubber ring 46 is also provided on the first annular seat 41. The first annular baffle 42 Close to the tail of the cylinder body 1; the first annular seat 41 is sleeved on the outer circle of the cylinder body 1 and the two are fixedly connected. By using the first annular baffle 42, the sliding earring seat assembly 80 is prevented from sliding toward the tail of the cylinder body 1. The sliding earring seat assemblies 80 on different support rod mechanisms are in abutment with each other. The rubber ring 46 is located between the first circular limit plate 43 and the sliding earring seat assembly 80 and is axially squeezed. The first circular limit plate 43 is connected to the first annular seat 41 by a first limit screw 44, so that the sliding earring seat assembly 80 can rotate along the cylinder body 1 under the action of external force.

[0034] The second annular seat assembly 50 includes a second annular seat 51 and a second annular baffle 52 connected to the outer circle of one end of the second annular seat 51. The second annular seat 51 and the second annular baffle 52 are of an integrated structural design. A second annular limiting plate 53 is sleeved on the end of the second annular seat 51 away from the second annular baffle 52. A plurality of second limiting screws 54 are spirally penetrated at intervals on the outer circle of the second annular limiting plate 53. A plurality of grooves 55 are provided at intervals on the outer circle of the second annular seat 51 to match the second limiting screws 54. A rubber ring 56 is also sleeved on the second annular seat 51. The second annular baffle 5 2 is close to the hinge head 3; the second annular seat 51 is sleeved on the outer circle of the piston rod 2 and the two are fixedly connected. The use of the second annular baffle 52 prevents the fixed earring seat assembly 70 from sliding toward the hinge head 3. The fixed earring seat assemblies 70 on different support rod mechanisms are in abutment with each other. The second rubber ring 56 is located between the second annular limiting plate 53 and the fixed earring seat assembly 70 and is axially squeezed. The second annular limiting plate 53 is connected to the second annular seat 51 by a second limiting screw 54, so that the fixed earring seat assembly 70 can rotate along the piston rod 2 under the action of external force.

[0035] The fixed earring seat assembly 70 includes a rotating ring 71 and a fixed ear plate 72 connected to the outer circle of the rotating ring 71. The fixed ear plate 72 is provided with a mounting hole 73, and the mounting hole 73 is penetrated by the support rod 6. The support rod 6 is threadedly connected with locking nuts 74 located on both sides of the fixed ear plate 72. The rotating ring 71 is sleeved on the outer circle of the second annular seat 51; the rotating ring 71 is sleeved on the outer circle of the second annular seat 51 and the two are rotatably connected. After the support rod 6 passes through the mounting hole 73, the support rod 6 is fixedly connected to the fixed ear plate 72 through the action of the locking nuts 74 on both sides of the fixed ear plate 72.

[0036] The sliding earring seat assembly 80 includes a rotating ring body 81 and a support ear plate 82 connected to the outer circle of the rotating ring body 81. The support ear plate 82 is provided with a circular hole 83, and a guide sleeve 84 is connected to the circular hole 83. The guide sleeve 84 is provided with the support rod 6. The rotating ring body 81 is sleeved on the outer circle of the first annular seat 41; the rotating ring body 81 is sleeved on the outer circle of the first annular seat 41 and the two are rotatably connected. The support rod 6 passes through the guide sleeve 84, and the guide sleeve 84 guides the support rod 6.

[0037] The implementation principle of this embodiment is as follows: when in use, the hydraulic cylinder is installed on the mechanical equipment. During the operation of the hydraulic cylinder, the piston rod 2 in the cylinder body 1 extends and retracts. The fixed earring seat assembly 70 at one end of the support rod 6 is sleeved on the outer circle of the second annular seat assembly 50, and the sliding earring seat assembly 80 at the other end is sleeved on the outer circle of the first annular seat assembly 40. When the piston rod 2 moves axially, the second annular seat assembly 50 drives the support rod 6 to move along the axial direction of the piston rod 2. Through the use of the support rod 6, when the hydraulic cylinder is subjected to a large bending load, part of the bending load is shared by the support rod 6, thereby reducing the bending load borne by the piston rod 2 and enhancing the support stability of the hydraulic cylinder. When the support rod 6 and the fixed earring seat assembly 70 interfere with the components around the piston rod 2 during movement, the fixed earring seat assembly 70, the sliding earring seat assembly 80 and the support rod 6 can be operated to perform circumferential adjustment along the piston rod 2, thereby avoiding interference with the components around the piston rod 2, thereby expanding the range of use of the hydraulic cylinder.

[0038] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A hydraulic cylinder with an enhanced support stability structure, comprising: A cylinder body (1) and a piston rod (2) provided in an inner cavity thereof, wherein the outer end of the piston rod (2) is connected to a hinge joint (3), and is characterized in that the outer circle of the cylinder body (1) is sleeve-connected to a first annular seat assembly (40), the end of the piston rod (2) close to the hinge joint (3) is sleeve-connected to a second annular seat assembly (50), and no less than two support rod mechanisms are provided on the outer side of the piston rod (2); The support rod mechanism comprises a support rod (6), one end of the support rod (6) is detachably connected to a fixed earring seat assembly (70), the fixed earring seat assembly (70) is sleeved on the outer circle of the second annular seat assembly (50) and is rotatably connected thereto, the other end of the support rod (6) is sleeved on a sliding earring seat assembly (80), the sliding earring seat assembly (80) is sleeved on the outer circle of the first annular seat assembly (40) and is rotatably connected thereto, and the support rod (6) and the sliding earring seat assembly (80) are in sliding connection.

2. The hydraulic cylinder with enhanced support stability structure according to claim 1, characterized in that: The first annular seat assembly (40) includes a first annular seat (41) and a first annular baffle (42) connected to the outer circle of one end of the first annular seat (41); a first annular limiting plate (43) is sleeved on the end of the first annular seat (41) away from the first annular baffle (42); a plurality of first limiting screws (44) are spirally penetrated at intervals on the outer circle of the first annular limiting plate (43); a plurality of grooves (45) adapted to the first limiting screws (44) are sleeved on the outer circle of the first annular seat (41); a rubber ring (46) is also sleeved on the first annular seat (41); and the first annular baffle (42) is close to the tail of the cylinder body (1).

3. The hydraulic cylinder with enhanced support stability structure according to claim 1, characterized in that: The second annular seat assembly (50) comprises a second annular seat (51) and a second annular baffle (52) connected to the outer circle of one end of the second annular seat (51); a second annular limiting plate (53) is sleeved on the end of the second annular seat (51) away from the second annular baffle (52); a plurality of second limiting screws (54) are spirally penetrated at intervals on the outer circle of the second annular limiting plate (53); a plurality of grooves (55) adapted to the second limiting screws (54) are sleeved on the outer circle of the second annular seat (51); a rubber ring (56) is also sleeved on the second annular seat (51); and the second annular baffle (52) is close to the hinge joint (3).

4. The hydraulic cylinder with a structure for enhancing support stability according to claim 3, characterized in that: The fixed earring seat assembly (70) comprises a rotating ring (71) and a fixed ear plate (72) connected to the outer circle of the rotating ring (71); the fixed ear plate (72) is provided with a mounting hole (73); the mounting hole (73) is penetrated by the support rod (6); the support rod (6) is threadedly connected with locking nuts (74) located on both sides of the fixed ear plate (72); the rotating ring (71) is sleeved on the outer circle of the second annular seat (51).

5. The hydraulic cylinder with enhanced support stability structure according to claim 2, characterized in that: The sliding earring seat assembly (80) comprises a rotating ring body (81) and a supporting ear plate (82) connected to the outer circle of the rotating ring body (81); the supporting ear plate (82) is provided with a circular hole (83); a guide sleeve (84) is connected in the circular hole (83); the support rod (6) is provided in the guide sleeve (84); the rotating ring body (81) is sleeved on the outer circle of the first annular seat (41).

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