Adjusting type hydraulic cylinder

Abstract

The utility model discloses an adjustable hydraulic cylinder, which relates to the technical field of hydraulic cylinders and comprises a bottom plate, a hydraulic cylinder is arranged above the bottom plate, and a rotary adjusting mechanism is arranged between the hydraulic cylinder and the bottom plate. The rotating adjusting mechanism comprises a rotating block fixedly connected to the bottom of the hydraulic cylinder, the rotating block is rotationally connected to the top face of the bottom plate, the periphery of the rotating block is sleeved with a gear, the top of the bottom plate is slidably connected with a rack, and the rack is meshed with the gear. According to the device, a threaded rod is rotated to drive a sliding block and a rack to move together, then the rack drives a gear to rotate, the gear drives a rotating block and a hydraulic cylinder to rotate together, and therefore angle adjustment of the hydraulic cylinder is achieved, and the threaded rod is in threaded connection with the sliding block, so that the sliding block and the rack are not prone to moving; therefore, the hydraulic cylinder is more stable after rotating, and the hydraulic cylinder is not prone to continuously rotating.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, and more specifically to an adjustable hydraulic cylinder. Background Art

[0002] The hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). It has a simple structure and reliable operation. When it is used to achieve reciprocating motion, the deceleration device can be eliminated, and there is no transmission gap, and the motion is smooth, so it is widely used in the hydraulic systems of various machines. The output force of the hydraulic cylinder is proportional to the effective area of ​​the piston and the pressure difference on both sides; the hydraulic cylinder is basically composed of a cylinder barrel and a cylinder head, a piston and a piston rod, a sealing device, a buffer device and an exhaust device. The buffer device and the exhaust device depend on the specific application, and other devices are indispensable.

[0003] For example, the utility model with announcement number CN214837518U discloses a hydraulic cylinder that is easy to adjust. When the hydraulic cylinder is easy to adjust, the buffering effect of the hydraulic cylinder body is improved and the pressure on the hydraulic cylinder body is reduced through multiple shock absorbers installed on the base. The rotating disk is easy to adjust the horizontal installation angle of the hydraulic cylinder body. The transmission gear installed on the first rotating shaft is engaged with the semicircular adjustment block, which is convenient to drive the semicircular adjustment block to rotate, so as to adjust the vertical angle of the hydraulic cylinder body. The T-slot facilitates the sliding of the fixed foot plate on the base. The installation position of the fixed foot plate is adjusted according to the installation environment. The second locking screw is installed in the threaded hole and connected to the fixed foot plate, so that the sliding fixed foot plate is locked in the T-slot to prevent movement.

[0004] Regarding the above scheme: The inventor believes that the above reference document facilitates the adjustment of the horizontal angle of the hydraulic cylinder body by rotating the rotating disk, but after the hydraulic cylinder is rotated by the rotating disk, there is a lack of a device to stabilize the hydraulic cylinder, resulting in the hydraulic cylinder being unstable and prone to continue rotating. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of the present utility model is to provide an adjustable hydraulic cylinder, which can effectively solve the problem that after the hydraulic cylinder is rotated by a rotating disk, there is a lack of a device to stabilize the hydraulic cylinder, resulting in the hydraulic cylinder being unstable and prone to continue rotating.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] An adjustable hydraulic cylinder comprises a bottom plate 1, a hydraulic cylinder 2 is arranged above the bottom plate 1, and a rotation adjustment mechanism is arranged between the hydraulic cylinder 2 and the bottom plate 1;

[0008] The rotation adjustment mechanism includes a rotating block 31 fixedly connected to the bottom of the hydraulic cylinder 2. The rotating block 31 is rotatably connected to the top surface of the bottom plate 1. A gear 32 is sleeved on the outer periphery of the rotating block 31. A rack 33 is slidably connected to the top of the bottom plate 1, and the rack 33 meshes with the gear 32;

[0009] A first hollow block 34 is fixedly connected to the upper side of the bottom plate 1. A threaded rod 35 is rotatably connected inside the first hollow block 34. A sliding block 36 is threadedly connected to the outer side of the threaded rod 35; the rack 33 is installed on the side wall of the sliding block 36; a fixed rod 37 is also fixedly connected to the first hollow block 34, and the sliding block 36 is slidably connected to the fixed rod 37.

[0010] Compared with the prior art, the advantages of the present utility model are as follows:

[0011] 1. In this device, the rotation of the hydraulic cylinder is driven by the gear-rack method, so as to realize the angle adjustment of the hydraulic cylinder; since the threaded rod is threadedly connected to the sliding block, the sliding block and the rack are not likely to move, and further the gear and the hydraulic cylinder are not likely to rotate, which can make the hydraulic cylinder more stable after rotation and not likely to continue to rotate.

[0012] 2. In this device, the bolt can be connected to the inside of the connecting block and the threaded hole to achieve the effect of connecting the sliding block and the rack, so that the sliding block can smoothly drive the rack to move when moving. At the same time, the bolt can also be rotated out of the threaded hole, which is convenient for disassembling and replacing the rack and convenient for future maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 is a schematic structural diagram of the present utility model;

[0014] Figure 2 is a schematic cross-sectional structural diagram of the present utility model;

[0015] Figure 3 is the present utility model Figure 2 an enlarged schematic structural diagram of part A in;

[0016] Figure 4 is a schematic structural diagram of the gear in the embodiment of the present utility model;

[0017] Figure 5 is a schematic cross-sectional structural diagram of the threaded rod in the embodiment of the present utility model;

[0018] Figure 6 is the present utility model Figure 5 an enlarged schematic structural diagram of part B in;

[0019] Figure 7 is the present utility model Figure 5 an enlarged schematic structural diagram of part C in.

[0020] Description of reference numerals:

[0021] 1. Bottom plate; 2. Hydraulic cylinder; 31. Rotating block; 32. Gear; 33. Rack; 34. First hollow block; 35. Threaded rod; 36. Sliding block; 37. Fixed rod; 41. Limiting groove; 42. Limiting block; 51. Connecting block; 52. Threaded hole; 53. Bolt; 61. Hollow groove; 62. Fixed ring block; 7. Mounting seat; 8. Support block; 91. Anti-slip pattern; 92. Rubber pad. Detailed implementation manners

[0022] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0023] Embodiment:

[0024] As Figure 1-5 shown: An adjustable hydraulic cylinder includes a bottom plate 1, and a hydraulic cylinder 2 is arranged above the bottom plate 1. A rotation adjustment mechanism is provided between the hydraulic cylinder 2 and the bottom plate 1, so that the hydraulic cylinder 2 can be adjusted in angle.

[0025] The rotation adjustment mechanism includes a rotating block 31 fixedly connected to the bottom of the hydraulic cylinder 2. The rotating block 31 is rotatably connected to the top surface of the bottom plate 1. A gear 32 is sleeved on the outer periphery of the rotating block 31. A rack 33 is slidably connected to the top of the bottom plate 1, and the rack 33 meshes with the gear 32.

[0026] A first hollow block 34 is fixedly connected to the upper side of the bottom plate 1. A threaded rod 35 is rotatably connected to the inside of the first hollow block 34. A sliding block 36 is threadedly connected to the outside of the threaded rod 35. The rack 33 is installed on the side wall of the sliding block 36. A fixed rod 37 is also fixedly connected to the first hollow block 34, and the sliding block 36 is slidably connected to the fixed rod 37.

[0027] The rack 33 can be moved to drive the gear 32 to rotate, and the rotating block 31 can connect the gear 32 and the hydraulic cylinder 2, so that when the gear 32 rotates, it can drive the hydraulic cylinder 2 to rotate together through the rotating block 31, realizing the horizontal angle adjustment of the hydraulic cylinder 2. The inside of the first hollow block 34 can support the threaded rod 35, and the threaded rod 35 can drive the sliding block 36 to move when rotating. The sliding block 36 is connected to the rack 33 to drive the rack 33 to move; the sliding block 36 itself is synchronously limited by the threaded rod 35 and the fixed rod 37, ensuring that the rack 33 is not prone to movement and also ensuring the stability of the transmission.

[0028] As Figure 1 shown: A connecting block 51 is fixedly provided at the end of the sliding block 36. A bolt 53 is threadedly connected to the connecting block 51, and a threaded hole 52 is provided on the rack 33; the rack 33 is connected to the connecting block 51 through the bolt 53 connected to the threaded hole 52. The bolt 53 can also be rotated to disengage from the threaded hole 52, which is convenient for disassembling and replacing the rack 33 and is applicable to the situation where the rack 33 is damaged.

[0029] As Figure 3 shown: A limiting groove 41 is opened on the upper side of the bottom plate 1. A limiting block 42 is rotatably connected inside the limiting groove 41 of the bottom plate 1, and the limiting block 42 is fixedly connected to the bottom surface of the rotating block 31. The limiting groove 41 can limit the rotating block 31 through the limiting block 42, so that when the rotating block 31 rotates on the upper side of the bottom plate 1, it is not prone to movement and detachment, and the stability is better.

[0030] As Figure 7 shown: A hollow groove 61 is opened inside the first hollow block 34. A fixed ring block 62 is rotatably connected inside the hollow groove 61. The threaded rod 35 passes through the center of the fixed ring block 62 and is fixedly connected to the fixed ring block 62. The fixed ring block 62 can be limited by the hollow groove 61 and cannot move but only rotate. At the same time, the fixed ring block 62 is connected to the threaded rod 35, and thus the threaded rod 35 can also be limited, making the threaded rod 35 and the sliding block 36 not prone to movement, so that the rack 33 is more stable.

[0031] As Figure 5 shown, an installation seat 7 is provided at the end of the fixed rod 37, and the installation seat 7 is fixedly connected to the bottom plate 1. This makes it difficult for the sliding block 36 to disengage from the threaded rod 35 and the sliding block 36 when moving. At the same time, the installation seat 7 can also reinforce the fixed rod 37, so that when the fixed rod 37 limits the sliding block 36, it is not prone to shaking and breaking.

[0032] As Figure 1As shown, a support block 8 is provided between the hydraulic cylinder 2 and the bottom plate 1, and the support block 8 is fixedly connected to the bottom plate 1. The support block 8 can support the lower side of the hydraulic cylinder 2, so that the hydraulic cylinder 2 is not likely to tilt on the upper side of the bottom plate 1 and the like.

[0033] As Figure 4 shown, a first hollow block 34 extends from one end of the threaded rod 35, and anti-slip threads 91 are provided on the surface of the part extending from the first hollow block 34, and a rubber pad 92 is provided on the bottom surface of the bottom plate 1. The anti-slip threads 91 can make it difficult for people to rotate the threaded rod 35 due to slippery hands when rotating the threaded rod 35, and the rubber pad 92 has a large frictional force, so that the bottom plate 1 is not likely to move when placed on the platform.

[0034] The working principle and usage process of the present utility model: When it is necessary to adjust the horizontal angle of the hydraulic cylinder 2, first rotate the threaded rod 35. The threaded rod 35 will drive the sliding block 36 to slide, and at the same time, the sliding block 36 will also drive the rack 33 to move synchronously, thereby driving the gear 32 to rotate, and finally realizing the angle adjustment of the hydraulic cylinder 2. The threaded rod 35 is threadedly connected to the sliding block 36, so that the sliding block 36 and the rack 33 are not likely to move, and thus the gear 32 and the hydraulic cylinder 2 are not likely to rotate either. This can make the hydraulic cylinder 2 more stable after rotation and not likely to continue to rotate; thus, the problem that after the hydraulic cylinder 2 is rotated by the rotating disc, there is a lack of a device for stabilizing the hydraulic cylinder 2, resulting in the hydraulic cylinder 2 being unstable and likely to continue to rotate can be solved.

[0035] The above is only the preferred specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and its improvement concept of the present utility model, makes equivalent substitutions or changes, and should be covered by the protection scope of the present utility model.

Claims

1. An adjustable hydraulic cylinder, characterized in that: It comprises a bottom plate (1), a hydraulic cylinder (2) is arranged above the bottom plate (1), and a rotation adjustment mechanism is arranged between the hydraulic cylinder (2) and the bottom plate (1); The rotary adjustment mechanism comprises a rotating block (31) fixedly connected to the bottom of the hydraulic cylinder (2), the rotating block (31) being rotatably connected to the top surface of the bottom plate (1), a gear (32) being sleeved on the outer periphery of the rotating block (31), a rack (33) being slidably connected to the top of the bottom plate (1), and the rack (33) and the gear (32) being meshed with each other; A first hollow block (34) is fixedly connected to the upper side of the bottom plate (1); a threaded rod (35) is rotatably connected inside the first hollow block (34); a sliding block (36) is threadedly connected to the outer side of the threaded rod (35); the rack (33) is mounted on the side wall of the sliding block (36); a fixed rod (37) is also fixedly connected to the first hollow block (34); and the sliding block (36) is slidably connected to the fixed rod (37).

2. The adjustable hydraulic cylinder according to claim 1, characterized in that: A connecting block (51) is fixedly provided at the end of the sliding block (36), a bolt (53) is threadedly connected to the connecting block (51), and a threaded hole (52) is provided on the rack (33); the rack (33) is connected to the connecting block (51) via the bolt (53) connected to the threaded hole (52).

3. The adjustable hydraulic cylinder according to claim 1, characterized in that: A limiting groove (41) is provided on the upper side of the bottom plate (1), and the bottom plate (1) is located inside the limiting groove (41) and is rotatably connected to a limiting block (42), and the limiting block (42) is fixedly connected to the bottom surface of the rotating block (31).

4. The adjustable hydraulic cylinder according to claim 1, characterized in that: A hollow groove (61) is provided inside the first hollow block (34), a fixed ring block (62) is rotatably connected inside the hollow groove (61), and the threaded rod (35) passes through the center of the fixed ring block (62) and is fixedly connected to the fixed ring block (62).

5. The adjustable hydraulic cylinder according to claim 1, characterized in that: A mounting seat (7) is provided at the end of the fixing rod (37), and the mounting seat (7) is fixedly connected to the bottom plate (1).

6. The adjustable hydraulic cylinder according to claim 1, characterized in that: A support block (8) is provided between the hydraulic cylinder (2) and the base plate (1), and the support block (8) is fixedly connected to the base plate (1).

7. The adjustable hydraulic cylinder according to claim 2, characterized in that: A first hollow block (34) extends from one end of the threaded rod (35), and a portion of the surface extending from the first hollow block (34) is provided with anti-slip grooves (91), and a rubber pad (92) is provided on the bottom surface of the bottom plate (1).

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