High-stability hydraulic cylinder

Abstract

The utility model relates to the technical field of hydraulic cylinders, and discloses a high-stability hydraulic cylinder which comprises a hydraulic cylinder body and a hydraulic cylinder base connected to the bottom of the hydraulic cylinder body in a bolted mode and further comprises storage grooves formed in the left side and the right side of the bottom of the hydraulic cylinder base. Mounting holes are formed in the front side and the rear side of the surface of the expansion plate correspondingly, and a position adjusting structure is arranged in the hydraulic cylinder base. The hydraulic cylinder has an adjusting function, the size of the base of the hydraulic cylinder can be adjusted, the supporting range of the base of the hydraulic cylinder can be enlarged as much as possible according to the actual installation condition so as to provide the best supporting effect, the two sides of the hydraulic cylinder can be supported after the hydraulic cylinder is installed, and therefore the hydraulic cylinder is convenient to use. The stability of the hydraulic cylinder in the operation process is further improved, and it is ensured that the hydraulic cylinder can still keep a stable motion state under the high-load and high-speed operation conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic cylinders, in particular to a high-stability hydraulic cylinder. Background Art

[0002] A hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or swinging motion). Its working principle can be simply summarized as the hydraulic pressure is transmitted to the piston rod through the piston, thereby driving the mechanical device to perform linear motion. Specifically, the working principle of the hydraulic cylinder can be divided into two stages: the pressure stage and the oil return stage. In the pressure stage, the hydraulic oil is pumped into the inner cavity of the hydraulic cylinder, and the piston of the hydraulic cylinder moves outward under the action of the hydraulic pressure, thereby driving the mechanical device to work. In the oil return stage, the hydraulic oil in the hydraulic cylinder flows back to the oil tank through the valve, and the piston of the hydraulic cylinder moves inward under the action of the external load, completing a complete working cycle. The hydraulic cylinder has a simple structure and reliable operation, and is widely used in the hydraulic systems of various machines.

[0003] The current hydraulic cylinder base is used to install, fix and support the hydraulic cylinder, but the size of the existing hydraulic cylinder base is mostly fixed. The existing hydraulic cylinder base may not be able to provide sufficient support and stability, especially when the load changes greatly or the working conditions are relatively harsh. It is impossible to provide effective support for the hydraulic cylinder, thereby affecting the stability of the hydraulic cylinder during operation. Utility Model Content

[0004] The purpose of the utility model is to provide a high-stability hydraulic cylinder to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a high-stability hydraulic cylinder, comprising a hydraulic cylinder body and a hydraulic cylinder base bolted to the bottom of the hydraulic cylinder body, and also comprising:

[0006] A storage groove is provided on the left and right sides of the bottom of the hydraulic cylinder base, an expansion plate is slidably connected inside the storage groove, mounting holes are provided on the front and rear sides of the surface of the expansion plate, and a positioning structure is provided inside the hydraulic cylinder base;

[0007] A reinforcing plate is hinged on one side of the top of the expansion plate, and mounting plates are fixed on the left and right sides of the hydraulic cylinder body. A sliding groove is provided on the surface of the mounting plate, and the reinforcing plate is slidably connected to the inner wall of the sliding groove. A plurality of positioning holes are provided on the front and rear sides of the surface of the mounting plate. A positioning bolt is penetrated on one side of the mounting plate, and the positioning bolt extends to the inside of the positioning hole and is threadedly connected to the inner wall of the positioning hole.

[0008] Preferably, the positioning structure includes a cavity opened in the middle part of the hydraulic cylinder base, a turning handle penetrating the front side of the hydraulic cylinder base, a first bevel gear fixed at the rear end of the turning handle, a threaded rod arranged in the cavity, and a second bevel gear fixed on one side of the surface of the threaded rod, the rear end of the turning handle extends into the interior of the cavity, the left and right ends of the threaded rod both penetrate into the interior of the storage groove and are rotatably connected to the hydraulic cylinder base, and the first bevel gear is meshed with the second bevel gear.

[0009] Preferably, the thread directions on the left and right sides of the threaded rod surface are oppositely arranged, and the left and right ends of the threaded rod penetrate the expansion plate and extend to the inside of the expansion plate, and the threaded rod is threadedly connected to the inner wall of the expansion plate.

[0010] Preferably, both front and rear sides of the inner wall of the storage slot are provided with limiting slots, and both front and rear sides of the expansion plate are fixed with limiting blocks slidably connected to the inner wall of the limiting slot.

[0011] Preferably, guide grooves are provided on both the front and rear sides of the mounting plate, and the guide grooves extend into the interior of the slide groove. One side of the front and rear sides of the reinforcing plate is rotatably connected to guide rollers, and the guide rollers are located inside the guide groove and movably connected to the inner wall of the guide groove.

[0012] Preferably, a connection groove is provided on the surface of the guide roller, and the positioning bolt is threadedly connected to the inner wall of the connection groove.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] The utility model has an adjustment function. The hydraulic cylinder can adjust the size of its own base. According to the actual installation situation, the support range of the hydraulic cylinder base can be expanded as much as possible to provide the best support effect. After the installation is completed, the hydraulic cylinder can also support both sides of the hydraulic cylinder, which further improves the stability of the hydraulic cylinder during operation and ensures that the hydraulic cylinder can maintain a stable motion state under high load and high-speed operation conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0017] Figure 3 It is a three-dimensional schematic diagram of the positioning structure in the utility model;

[0018] Figure 4 It is a three-dimensional schematic diagram of the mounting plate in the utility model;

[0019] Figure 5 For this utility model Figure 4 A partial enlarged view of point A in the middle.

[0020] In the figure: 1. hydraulic cylinder body; 2. hydraulic cylinder base; 3. storage slot; 4. expansion plate; 5. mounting hole; 6. adjustment structure; 61. cavity; 62. turning handle; 63. first bevel gear; 64. threaded rod; 65. second bevel gear; 7. reinforcement plate; 8. mounting plate; 9. slide groove; 10. positioning hole; 11. positioning bolt; 12. limit groove; 13. limit block; 14. guide roller; 15. guide groove; 16. connecting groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-5 As shown, a high-stability hydraulic cylinder comprises a hydraulic cylinder body 1 and a hydraulic cylinder base 2, the hydraulic cylinder base 2 is bolted to the bottom of the hydraulic cylinder body 1, and storage grooves 3 are provided on the left and right sides of the bottom of the hydraulic cylinder base 2, and an expansion plate 4 is slidably connected inside the storage groove 3, and mounting holes 5 are provided on the front and rear sides of the surface of the expansion plate 4, and a positioning structure 6 is provided inside the hydraulic cylinder base 2, and a reinforcing plate 7 is hinged on one side of the top of the expansion plate 4, and mounting plates 8 are fixed on the left and right sides of the hydraulic cylinder body 1, and a sliding groove 9 is provided on the surface of the mounting plate 8, and the reinforcing plate 7 is slidably connected to the inner wall of the sliding groove 9, and a plurality of positioning holes 10 are provided on the front and rear sides of the surface of the mounting plate 8, and a positioning bolt 11 is penetrated on one side of the mounting plate 8, and the positioning bolt 11 extends to the inside of the positioning hole 10 and is threadedly connected to the inner wall of the positioning hole 10.

[0023] The adjustment structure 6 includes a cavity 61, a rotating handle 62, a first bevel gear 63, a threaded rod 64 and a second bevel gear 65. The cavity 61 is opened in the middle of the hydraulic cylinder base 2. The rotating handle 62 is set through the front side of the hydraulic cylinder base 2, and the rear end of the rotating handle 62 extends to the inside of the cavity 61. The first bevel gear 63 is fixed to the rear end of the rotating handle 62. The threaded rod 64 is set in the inside of the cavity 61, and the left and right ends of the threaded rod 64 are both through the inside of the storage groove 3 and are rotatably connected to the hydraulic cylinder base 2. The second bevel gear 65 is fixed on one side of the surface of the threaded rod 64, and the first bevel gear 63 is connected to the second bevel gear 65. The two bevel gears 65 are meshed with each other, and the thread directions on the left and right sides of the threaded rod 64 are set in opposite directions, and the left and right ends of the threaded rod 64 penetrate the expansion plate 4 and extend to the inside of the expansion plate 4. The threaded rod 64 is threadedly connected to the inner wall of the expansion plate 4. When installing the hydraulic cylinder, the staff first rotates the handle 62, and then the handle 62 drives the first bevel gear 63 to rotate, and the first bevel gear 63 drives the second bevel gear 65 to rotate, and then the threaded rod 64 rotates, and the expansion plates 4 on both sides will move in opposite directions, thereby adjusting the support area of ​​the hydraulic cylinder base 2.

[0024] Limiting grooves 12 are provided on both the front and rear sides of the inner wall of the storage groove 3, and limiting blocks 13 are fixed on one side of the front and rear sides of the expansion plate 4. The limiting blocks 13 are located inside the limiting grooves 12 and are slidably connected to the inner walls of the limiting grooves 12. When the threaded rod 64 rotates, the expansion plates 4 on both sides move, and the limiting blocks 13 also move inside the limiting grooves 12. The movable range of the expansion plate 4 is controlled by the limiting blocks 13 to prevent the threaded rod 64 from separating from the expansion plate 4.

[0025] Guide grooves 15 are provided on both the front and rear sides of the mounting plate 8, and the guide grooves 15 extend to the inside of the slide groove 9. One side of the front and rear sides of the reinforcing plate 7 is rotatably connected with guide rollers 14. The guide rollers 14 are located inside the guide grooves 15 and are movably connected to the inner walls of the guide grooves 15. When the positions of the expansion plates 4 on both sides are adjusted, the reinforcing plate 7 will also move, and the guide rollers 14 will roll inside the guide grooves 15, thereby guiding one side of the reinforcing plate 7, so that one side of the reinforcing plate 7 can only slide up and down inside the slide groove 9.

[0026] A connecting groove 16 is provided on the surface of the guide roller 14, and the positioning bolt 11 is threadedly connected to the inner wall of the connecting groove 16. When the staff has completed the position adjustment of the expansion plates 4 on both sides, the positioning bolt 11 can be taken out, and then the positioning bolt 11 can be inserted into the corresponding positioning hole 10, so that the positioning bolt 11 enters the interior of the connecting groove 16, and then the reinforcing plate 7 is positioned to prevent the expansion plate 4 and the reinforcing plate 7 from moving.

[0027] Working principle: When the staff installs and uses the hydraulic cylinder, the staff can move the hydraulic cylinder to the installation area and then rotate the handle 62 below, so that the expansion plates 4 on both sides move in opposite directions, so that the expansion plates 4 are moved out from the inside of the storage slot 3. According to the surrounding installation conditions, the support area under the hydraulic cylinder is expanded as much as possible. After the expansion plate 4 is adjusted to a suitable position, the staff can take out the installation tool and fix the hydraulic cylinder base 2 through the installation hole 5 on the surface of the expansion plate 4. While the expansion plate 4 moves, the reinforcement plates 7 on both sides also move. After the position adjustment of the expansion plate 4 is completed, the staff takes out the positioning bolts 11 and positions the reinforcement plate 7 through the positioning bolts 11, so that the reinforcement plate 7 supports both sides of the hydraulic cylinder body 1, so that the hydraulic cylinder maintains a stable state during operation.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-stability hydraulic cylinder, comprising a hydraulic cylinder body (1) and a hydraulic cylinder base (2) bolted to the bottom of the hydraulic cylinder body (1), characterized in that: Also includes: A storage groove (3) is provided on the left and right sides of the bottom of the hydraulic cylinder base (2), an expansion plate (4) is slidably connected inside the storage groove (3), and mounting holes (5) are provided on the front and rear sides of the surface of the expansion plate (4), and a positioning structure (6) is provided inside the hydraulic cylinder base (2); and A reinforcing plate (7) is hinged on one side of the top of the expansion plate (4), and mounting plates (8) are fixed on both the left and right sides of the hydraulic cylinder body (1). A sliding groove (9) is provided on the surface of the mounting plate (8), and the reinforcing plate (7) is slidably connected to the inner wall of the sliding groove (9). A plurality of positioning holes (10) are provided on the front and rear sides of the surface of the mounting plate (8), and a positioning bolt (11) is provided through one side of the mounting plate (8), and the positioning bolt (11) extends to the inside of the positioning hole (10) and is threadedly connected to the inner wall of the positioning hole (10).

2. A high stability hydraulic cylinder according to claim 1, characterized in that: The positioning structure (6) comprises a cavity (61) opened in the middle of the hydraulic cylinder base (2), a rotating handle (62) penetrating the front side of the hydraulic cylinder base (2), a first bevel gear (63) fixed to the rear end of the rotating handle (62), a threaded rod (64) arranged in the cavity (61), and a second bevel gear (65) fixed to one side of the surface of the threaded rod (64); the rear end of the rotating handle (62) extends into the cavity (61); the left and right ends of the threaded rod (64) both penetrate into the storage groove (3) and are rotatably connected to the hydraulic cylinder base (2); the first bevel gear (63) and the second bevel gear (65) are meshed with each other.

3. A high stability hydraulic cylinder according to claim 2, characterized in that: The threads on the left and right sides of the surface of the threaded rod (64) are arranged in opposite directions, and the left and right ends of the threaded rod (64) penetrate the expansion plate (4) and extend into the interior of the expansion plate (4), and the threaded rod (64) is threadedly connected to the inner wall of the expansion plate (4).

4. A high stability hydraulic cylinder according to claim 1, characterized in that: Limiting grooves (12) are provided on both the front and rear sides of the inner wall of the storage groove (3), and limiting blocks (13) are fixed on both the front and rear sides of the expansion plate (4) and are slidably connected to the inner wall of the limiting groove (12).

5. The high stability hydraulic cylinder according to claim 1, characterized in that: The front and rear sides of the mounting plate (8) are both provided with guide grooves (15), and the guide grooves (15) extend to the inside of the slide groove (9). The front and rear sides of the reinforcing plate (7) are both rotatably connected to guide rollers (14), and the guide rollers (14) are located inside the guide grooves (15) and are movably connected to the inner wall of the guide grooves (15).

6. A high stability hydraulic cylinder according to claim 5, characterized in that: A connection groove (16) is provided on the surface of the guide roller (14), and the positioning bolt (11) is threadedly connected to the inner wall of the connection groove (16).

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