Multi-section hydraulic oil cylinder

Abstract

The utility model discloses a multi-section type hydraulic oil cylinder, which relates to the technical field of hydraulic oil cylinders and comprises a bearing seat, an adjusting shaft is rotatably connected in the bearing seat, a multi-section hydraulic cylinder main body is fixedly connected on the outer side of the adjusting shaft, a telescopic valve is arranged on the outer side of the multi-section hydraulic cylinder main body, an adjusting mechanism is arranged in the bearing seat, and the adjusting mechanism is fixedly connected with the adjusting shaft. The adjusting mechanism comprises an adjusting assembly and a stabilizing assembly, the adjusting assembly and the stabilizing assembly are used in cooperation, the adjusting assembly comprises a motor, and the motor is fixedly connected to the side, away from the adjusting shaft, of the bearing base. According to the multi-section type hydraulic oil cylinder, the use angle of the multi-section type hydraulic oil cylinder body can be rapidly adjusted through the arranged adjusting mechanism, compared with a fixed installation mode, the multi-section type hydraulic oil cylinder is more diversified in use scene, the influence on production due to the fact that the angle cannot be adjusted is avoided, and the multi-section type hydraulic oil cylinder is simple in structure and high in practicability.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic cylinder technology, and in particular to a multi-section hydraulic cylinder. Background Technology

[0002] A multi-section hydraulic cylinder is a telescopic actuator composed of multiple interlocking cylindrical cylinders. It extends or retracts section by section through hydraulic drive, providing an ultra-long stroke within a limited installation space. Its core feature is the use of a staged piston structure, with each section linked in a preset sequence and synchronously extended and retracted through internal oil circuit control. It features a compact structure, stable thrust, and strong resistance to off-center loads.

[0003] A search revealed a multi-section hydraulic cylinder (authorization announcement number: CN 119687061 A), which comprises "a first and a second hydraulic cylinder connected in series. By designing a first and a second cooling spiral tube, and employing a double-layer pipe structure within the spiral tubes, the fluids in the first and second outer pipes exchange heat with the fluids in the first and second inner pipes, respectively. The fluids in the first and second outer pipes carry away heat from the cylinder barrel, while the heat exchange between the fluids in the first and second inner pipes reduces the temperature of the fluids in the first and second outer pipes. This allows for sustainable cooling of the first and second cooling spiral tubes, enhancing the continuous cooling effect. Furthermore, the specific flow channel structure of the first and second cooling spiral tubes is designed to improve heat exchange efficiency, protect the cylinders in normal operating conditions, and extend cylinder life."

[0004] Based on the aforementioned technologies, the applicant believes that existing multi-section hydraulic cylinders are mostly fixed in installation and cannot effectively adjust the operating angle of the multi-section hydraulic cylinder to adapt to different usage needs in the production process. In actual use, there are still some shortcomings. In order to address the above problems, we have introduced a multi-section hydraulic cylinder. Utility Model Content

[0005] This utility model discloses a multi-section hydraulic cylinder, which aims to solve the technical problem that existing multi-section hydraulic cylinders are mostly fixedly installed and used, and the operating angle of the multi-section hydraulic cylinder cannot be effectively adjusted.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A multi-section hydraulic cylinder includes a support base. An adjusting shaft is rotatably connected inside the support base. A multi-section hydraulic cylinder body is fixedly connected to the outer side of the adjusting shaft. A telescopic valve is provided on the outer side of the multi-section hydraulic cylinder body. An adjusting mechanism is provided inside the support base. The adjusting mechanism includes an adjusting component and a stabilizing component, which cooperate with each other. The adjusting component includes a motor, which is fixedly connected to the side of the support base away from the adjusting shaft. A threaded rod is rotatably connected inside the support base. A displacement block is threadedly connected to the outer side of the threaded rod. A rotating block is fixedly connected to the top of the displacement block. A diagonal brace is rotatably connected to the top of the rotating block. An adjusting block is fixedly connected to the bottom of the multi-section hydraulic cylinder body. The adjusting block is rotatably connected to the other end of the diagonal brace. The output end of the motor extends into the interior of the support base and is fixedly connected to the threaded rod.

[0008] The adjustable mechanism allows for quick adjustment of the operating angle of the multi-section hydraulic cylinder body. Compared to fixed installation, this design offers greater versatility in various applications, avoids the impact of unadjustable angles on production, and features a simple structure and strong practicality.

[0009] In a preferred embodiment, the stabilizing component includes limiting grooves symmetrically formed inside the support seat. Each limiting groove has a sliding rod fixedly connected inside it, and each sliding rod has a sliding block slidably connected to its outer side. Each sliding block is fixedly connected to a displacement block.

[0010] The design of the sliding rod and sliding block in the limiting groove ensures that the displacement block does not deflect during linear movement, avoids the twisting of the diagonal brace under stress, and extends the service life of the threaded rod.

[0011] In a preferred embodiment, a protective cover is fixedly connected to the outside of the motor, and heat dissipation slots for heat dissipation of the motor are equidistantly opened inside the protective cover.

[0012] The heat dissipation slots of the protective cover are arranged at equal intervals, which ensures the heat dissipation efficiency of the motor while meeting the requirements of harsh working conditions.

[0013] In a preferred embodiment, L-shaped fixing plates are symmetrically fixedly connected to both sides of the support, and bolts are threaded inside the L-shaped fixing plates.

[0014] The combination of L-shaped fixing plates and bolts allows for the fixing of the support base, adapting to the connection requirements of different equipment bases.

[0015] In a preferred embodiment, a support plate is fixedly connected inside the support base, the top of the support plate has an arc-shaped groove for supporting the multi-section hydraulic cylinder body, and a silicone cushioning pad is fixedly connected to the bottom of the support base.

[0016] The arc-shaped groove and the support plate form a wrapping support, dispersing the vibration load of the multi-section hydraulic cylinder body, and the silicone buffer pad further absorbs high-frequency impact.

[0017] In a preferred embodiment, a controller is fixedly connected to the side of the support away from the motor, and the motor is electrically connected to the controller.

[0018] The controller adjusts the motor speed in real time to achieve closed-loop control of the extension length and angle.

[0019] The multi-section hydraulic cylinder provided by this utility model has the following advantages:

[0020] Firstly, the adjustable mechanism allows for quick adjustment of the operating angle of the multi-section hydraulic cylinder body. Compared to fixed installation, this design offers greater versatility in application scenarios, avoids the impact on production caused by the inability to adjust the angle, and features a simple structure and strong practicality.

[0021] Secondly, the heat dissipation slots of the protective cover adopt an equidistant arrangement design, which ensures the heat dissipation efficiency of the motor while meeting the requirements of harsh working conditions. The combination of L-shaped fixing plate and bolts allows the support to be fixed, adapting to the connection requirements of different equipment bases. The arc groove and the support plate form a covering support, dispersing the vibration load of the multi-section hydraulic cylinder body. The silicone buffer pad further absorbs high-frequency impact. The controller adjusts the motor speed in real time to achieve closed-loop control of the extension length and angle. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of a multi-section hydraulic cylinder proposed in this utility model.

[0023] Figure 2 This is a three-dimensional schematic diagram of a multi-section hydraulic cylinder proposed in this utility model.

[0024] Figure 3 This is a three-dimensional bottom view of a multi-section hydraulic cylinder proposed in this utility model.

[0025] Figure 4 This is a three-dimensional schematic diagram of the adjustment mechanism of a multi-section hydraulic cylinder proposed in this utility model.

[0026] Figure 5 This is a three-dimensional schematic diagram of a support base for a multi-section hydraulic cylinder proposed in this utility model.

[0027] In the attached diagram: 1. Support seat; 2. Adjusting shaft; 3. Multi-section hydraulic cylinder body; 4. Telescopic valve; 51. Motor; 52. Threaded rod; 53. Displacement block; 54. Rotating block; 55. Diagonal brace; 56. Adjusting block; 57. Limiting groove; 58. Slide rod; 59. Sliding block; 6. Protective cover; 7. Heat dissipation groove; 8. L-shaped fixing plate; 9. Bolt; 10. Support plate; 11. Arc groove; 12. Controller; 13. Silicone buffer pad. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and marked in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0029] The multi-section hydraulic cylinder disclosed in this utility model is mainly used in hydraulic cylinder application scenarios.

[0030] Reference Figure 1 - Figure 5 A multi-section hydraulic cylinder includes a support base 1. An adjusting shaft 2 is rotatably connected inside the support base 1. A multi-section hydraulic cylinder body 3 is fixedly connected to the outside of the adjusting shaft 2. A telescopic valve 4 is provided on the outside of the multi-section hydraulic cylinder body 3. An adjusting mechanism is provided inside the support base 1. The adjusting mechanism includes an adjusting component and a stabilizing component, which cooperate with each other. The adjusting component includes a motor 51, which is fixedly connected to the side of the support base 1 away from the adjusting shaft 2. A threaded rod 52 is rotatably connected inside the support base 1. A displacement block 53 is threadedly connected to the outside of the threaded rod 52. A rotating block 54 is fixedly connected to the top of the displacement block 53. A diagonal brace 55 is rotatably connected to the top of the rotating block 54. An adjusting block 56 is fixedly connected to the bottom of the multi-section hydraulic cylinder body 3. The adjusting block 56 is rotatably connected to the other end of the diagonal brace 55. The output end of the motor 51 extends into the interior of the support base 1 and is fixedly connected to the threaded rod 52. The stabilizing component includes a limiting groove 57, which is symmetrically opened inside the support 1. A slide rod 58 is fixedly connected inside each of the two limiting grooves 57, and a sliding block 59 is slidably connected to the outside of each of the two slide rods 58. Both sliding blocks 59 are fixedly connected to the displacement block 53.

[0031] In this embodiment: when it is necessary to adjust the operating angle of the multi-section hydraulic cylinder, the motor 51 is started, and the threaded rod 52 drives the displacement block 53 to move linearly along the slide rod 58, pushing the diagonal brace 55 to rotate around the rotating block 54. Then, the tilt angle of the multi-section hydraulic cylinder body 3 is changed by the adjusting block 56 (adjustable from 0-30°). During the movement of the displacement block 53, the slide rod 58 and the sliding block 59 make the movement of the displacement block 53 more stable and smooth. The telescopic valve 4 distributes the hydraulic oil flow according to the angle signal, so that each stage of the cylinder extends synchronously according to the set ratio. After the operation is completed, the motor 51 reverses to reset the diagonal brace 55. Through the set adjustment mechanism, the operating angle of the multi-section hydraulic cylinder body 3 can be quickly adjusted. Compared with the fixed installation method, the application scenarios are more diverse, avoiding the impact of the inability to adjust the angle on production. The structure is simple and the practicality is strong.

[0032] In the above technical solution, considering the problem that existing multi-section hydraulic cylinders are mostly fixedly installed and cannot effectively adjust the operating angle of the multi-section hydraulic cylinders, the specific operation is as follows to solve this problem:

[0033] Reference Figure 1 - Figure 5 In a preferred embodiment, a protective cover 6 is fixedly connected to the outside of the motor 51, and heat dissipation grooves 7 for heat dissipation of the motor 51 are equidistantly formed inside the protective cover 6. L-shaped fixing plates 8 are symmetrically fixedly connected to both sides of the support base 1, and bolts 9 are threaded into the interior of the L-shaped fixing plates 8. A support plate 10 is fixedly connected inside the support base 1, and an arc-shaped groove 11 for supporting the multi-section hydraulic cylinder body 3 is formed on the top of the support plate 10. A silicone buffer pad 13 is fixedly connected to the bottom of the support base 1. A controller 12 is fixedly connected to the side of the support base 1 away from the motor 51, and the motor 51 is electrically connected to the controller 12.

[0034] In this embodiment: the heat dissipation slots 7 of the protective cover 6 are arranged at equal intervals, which ensures the heat dissipation efficiency of the motor 51 while meeting the requirements of harsh working conditions. The combination of L-shaped fixing plate 8 and bolt 9 allows the support seat 1 to be fixed, adapting to the connection requirements of different equipment bases. The arc groove 11 and the support plate 10 form a covering support, dispersing the vibration load of the multi-section hydraulic cylinder body 3. The silicone buffer pad 13 further absorbs high-frequency impact. The controller 12 adjusts the speed of the motor 51 in real time to realize closed-loop control of the extension length and angle.

[0035] Working principle: When it is necessary to adjust the operating angle of the multi-section hydraulic cylinder, the motor 51 is started, the threaded rod 52 drives the displacement block 53 to move linearly along the slide rod 58, pushes the diagonal brace 55 to rotate around the rotating block 54, and then changes the tilt angle of the multi-section hydraulic cylinder body 3 through the adjusting block 56. During the movement of the displacement block 53, the slide rod 58 and the sliding block 59 can make the displacement block 53 move more stably and smoothly. The telescopic valve 4 distributes the hydraulic oil flow according to the angle signal, so that each stage of the cylinder extends synchronously according to the set ratio. The arc groove 11 of the support plate 10 can provide necessary support when the multi-section hydraulic cylinder body 3 is retracted into the support seat 1. The silicone buffer pad 13 absorbs the vibration of the operation. After the action is completed, the motor 51 reverses to reset the diagonal brace 55.

[0036] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A multi-section hydraulic cylinder, comprising a support (1), characterized in that: The support (1) is rotatably connected to an adjusting shaft (2), and a multi-section hydraulic cylinder body (3) is fixedly connected to the outside of the adjusting shaft (2). A telescopic valve (4) is provided on the outside of the multi-section hydraulic cylinder body (3). An adjusting mechanism is provided inside the support (1). The adjusting mechanism includes an adjusting component and a stabilizing component, which work together. The adjustment assembly includes a motor (51), which is fixedly connected to the side of the support (1) away from the adjustment shaft (2). A threaded rod (52) is rotatably connected inside the support (1). A displacement block (53) is threadedly connected to the outside of the threaded rod (52). A rotating block (54) is fixedly connected to the top of the displacement block (53). A diagonal brace (55) is rotatably connected to the top of the rotating block (54). An adjustment block (56) is fixedly connected to the bottom of the multi-section hydraulic cylinder body (3). The adjustment block (56) is rotatably connected to the other end of the diagonal brace (55). The output end of the motor (51) extends into the interior of the support (1) and is fixedly connected to the threaded rod (52).

2. A multi-section hydraulic cylinder according to claim 1, characterized in that: The stabilizing component includes a limiting groove (57), which is symmetrically opened inside the support (1). A sliding rod (58) is fixedly connected inside each of the two limiting grooves (57), and a sliding block (59) is slidably connected to the outside of each of the two sliding rods (58). Both sliding blocks (59) are fixedly connected to the displacement block (53).

3. A multi-section hydraulic cylinder according to claim 1, characterized in that: A protective cover (6) is fixedly connected to the outside of the motor (51), and heat dissipation slots (7) for the motor (51) are provided at equal intervals inside the protective cover (6).

4. A multi-section hydraulic cylinder according to claim 1, characterized in that: Both sides of the support (1) are symmetrically fixed with L-shaped fixing plates (8), and the L-shaped fixing plates (8) are internally threaded with bolts (9).

5. A multi-section hydraulic cylinder according to claim 1, characterized in that: The support base (1) is fixedly connected to the inside of the support plate (10). The top of the support plate (10) is provided with an arc-shaped groove (11) for supporting the multi-section hydraulic cylinder body (3). The bottom of the support base (1) is fixedly connected to a silicone buffer pad (13).

6. A multi-section hydraulic cylinder according to claim 1, characterized in that: The support (1) is fixedly connected to a controller (12) on the side away from the motor (51), and the motor (51) is electrically connected to the controller (12).

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