Hydraulic motor with adjustable eccentric distance

Abstract

The invention relates to the technical field of hydraulic motors, and discloses an eccentric distance adjustable hydraulic motor which comprises a hydraulic motor body and further comprises a threaded cylinder and a brake assembly, a motor rotating shaft is arranged in the hydraulic motor body, a rotating disc is fixedly connected to the outer portion of the motor rotating shaft, and an eccentric distance adjusting disc is arranged outside the motor rotating shaft; the brake assembly is arranged outside the rotating disc, the threaded cylinder is fixedly connected to the front face of the rotating disc, an adjusting cylinder is slidably connected to the outside of the threaded cylinder, and a second motor is fixedly connected to the front face of the adjusting cylinder. A rotating support is driven to rotate through an arranged fixing sliding block under limiting of a groove formed in a fixing limiting plate, a supporting vertical plate is driven to be adjusted through rotation of the rotating support so that the supporting vertical plate and an eccentric distance adjusting disc can be fixed, and when the eccentric distance adjusting disc is fixed, fixing of the eccentric distance adjusting disc becomes more convenient and stable; the performance of the hydraulic motor is guaranteed, and normal operation and safety of equipment are guaranteed.

Description

Technical Field

[0001] The present invention relates to the field of hydraulic motors, and more particularly to an adjustable eccentricity hydraulic motor. Background Art

[0002] In a hydraulic motor, the eccentricity refers to the radial distance between the axis of the rotor of the hydraulic motor and the rotation center of the housing of the hydraulic motor. The size of the eccentricity directly affects the working efficiency of the hydraulic motor. When the eccentricity of the hydraulic motor increases, the output torque will increase, but the output speed will decrease. Therefore, by adjusting the eccentricity, appropriate output torque and speed can be obtained under different working requirements. This adjustable design makes the adjustable eccentricity hydraulic motor have higher flexibility and adaptability, and can meet the requirements under different working conditions. At the same time, optimizing the eccentricity can also improve the output characteristics, ensure uniform torque output and reduce internal leakage, thereby improving the overall performance and efficiency.

[0003] In the prior art, when the device is in use, the pressure difference between the oil inlet and the oil return port of the hydraulic oil acts on the working components to push them to move. This pressure difference determines the size of the output torque of the hydraulic motor. As the pressure energy of the high-pressure liquid is converted into rotational motion through mechanical action, the output shaft of the hydraulic motor generates rotational mechanical energy. When installing the eccentric disc, there will be an angular error. This error may be caused by reasons such as unstable installation brackets, improper selection of couplings, or failure to use appropriate positioning tools during the installation process. The angular error will also affect the performance of the hydraulic motor and may even endanger the normal operation and safety of the equipment. Therefore, it is necessary to improve the adjustable eccentricity hydraulic motor to solve the above problems. Summary of the Invention

[0004] In order to overcome the problem that when installing the eccentric disc of the adjustable eccentricity hydraulic motor, there will be an angular error. This error may be caused by reasons such as unstable installation brackets, improper selection of couplings, or failure to use appropriate positioning tools during the installation process. The angular error will also affect the performance of the hydraulic motor and may even endanger the normal operation and safety of the equipment.

[0005] The technical solution of the present invention is as follows: an eccentric distance adjustable hydraulic motor, including a hydraulic motor body, further including a threaded cylinder and a brake assembly. A motor rotating shaft is arranged inside the hydraulic motor body, a rotating disc is fixedly connected to the outside of the motor rotating shaft, an eccentric distance adjusting disc is arranged outside the motor rotating shaft, the brake assembly is arranged outside the rotating disc, the threaded cylinder is fixedly connected to the front of the rotating disc, an adjusting cylinder is slidably connected to the outside of the threaded cylinder, a second motor is fixedly connected to the front of the adjusting cylinder, an output end of the second motor is fixedly connected to a second rotating threaded rod, the second rotating threaded rod is threadedly connected to the inside of the threaded cylinder, a fixing block is fixedly connected to the outside of the adjusting cylinder, a rotating bracket is rotatably connected to the outside of the fixing block, a supporting vertical plate is rotatably connected to the inside of the rotating bracket, a fixed limiting plate is fixedly connected to the outside of the motor rotating shaft, a fixed sliding block is slidably connected to the inside of the fixed limiting plate, the fixed sliding block is fixedly connected to the back of the supporting vertical plate, and a limiting clamping plate is fixedly connected to the back of the fixed sliding block.

[0006] Preferably, a sliding groove is provided at a position corresponding to the fixed sliding block on the fixed limiting plate, and the fixed sliding block slides inside the sliding groove.

[0007] Preferably, a plurality of fixing blocks are provided, and the plurality of fixing blocks are uniformly fixedly connected to the outside of the adjusting cylinder.

[0008] Preferably, a first motor is fixedly connected to the outside of the eccentric distance adjusting disc, an output end of the first motor is fixedly connected to a first rotating threaded rod, the first rotating threaded rod is rotatably connected to the inside of the eccentric distance adjusting disc, a sliding threaded block is threadedly connected to the outside of the first rotating threaded rod, and a rotating shaft is fixedly connected to the front of the sliding threaded block.

[0009] Preferably, a sliding groove is provided at a position corresponding to the sliding threaded block on the eccentric distance adjusting disc, and the sliding threaded block slides inside the sliding groove.

[0010] Preferably, the brake assembly includes a supporting mounting seat, a connecting fixing seat is fixedly connected to the front of the supporting mounting seat, a first clamping shell is fixedly connected to the back of the connecting fixing seat, a second clamping shell is arranged on the front of the first clamping shell, an air pressure pump is arranged on the front of the second clamping shell, an air flow port is opened inside the air pressure pump, a telescopic extrusion block is slidably connected to the inside of the air pressure pump, a limiting fixing rod is fixedly connected to the front of the first clamping shell, the limiting fixing rod is slidably connected to the inside of the air pressure pump, and a fixing bolt is arranged between the first clamping shell and the second clamping shell.

[0011] Preferably, two fixing bolts are provided, and the two fixing bolts are arranged between the first clamping shell and the second clamping shell.

[0012] Advantages of the present invention: Compared with the eccentric distance adjustable hydraulic motor installed by bolts, with the fixed slider limited by the groove opened in the fixed limiting plate, the rotating bracket is driven to rotate. The rotation of the rotating bracket drives the support vertical plate to be adjusted so that the support vertical plate is fixed to the eccentric distance adjusting disc. When fixing the eccentric distance adjusting disc, the fixing becomes more convenient and stable, ensuring the performance of the hydraulic motor, the normal operation and safety of the equipment, and effectively preventing the angle error that may occur when installing the eccentric disc of the eccentric distance adjustable hydraulic motor. This error may be due to the instability of the mounting bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 Schematic diagram of the external structure of the eccentric distance adjustable hydraulic motor of the present invention; Figure 2 Schematic diagram of the eccentric distance adjusting disc structure of the eccentric distance adjustable hydraulic motor of the present invention; Figure 3 Schematic diagram of the internal structure of the eccentric distance adjusting disc of the eccentric distance adjustable hydraulic motor of the present invention; Figure 4 Schematic diagram of the structure brake assembly of the eccentric distance adjustable hydraulic motor of the present invention; Figure 5 Partial schematic diagram of the structure brake assembly of the eccentric distance adjustable hydraulic motor of the present invention; Figure 6 Internal schematic diagram of the structure brake assembly of the eccentric distance adjustable hydraulic motor of the present invention.

[0014] Description of the reference numerals: 1, hydraulic motor body; 2, motor rotating shaft; 3, rotating disc; 4, eccentric distance adjusting disc; 801, first motor; 802, first rotating threaded rod; 803, sliding threaded block; 804, rotating shaft; 805, threaded cylinder; 806, adjusting cylinder; 807, second motor; 808, second rotating threaded rod; 809, fixed block; 810, rotating bracket; 811, support vertical plate; 812, fixed limiting plate; 813, fixed slider; 814, limiting clamping plate; 901, support mounting seat; 902, connecting fixing seat; 903, first casing; 905, second casing; 906, air pressure pump; 907, air flow port; 908, telescopic extrusion block; 909, limiting fixing rod; 910, fixing bolt. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The present invention will be further described below with reference to the drawings and embodiments.

[0016] Please refer to Figure 1 - Figure 6, the present invention provides an embodiment: an eccentric distance adjustable hydraulic motor, which includes a hydraulic motor body 1, and further includes a threaded cylinder 805 and a brake assembly. A motor rotating shaft 2 is arranged inside the hydraulic motor body 1, a rotating disk 3 is fixedly connected to the outside of the motor rotating shaft 2, an eccentric distance adjusting disk 4 is arranged outside the motor rotating shaft 2, the brake assembly is arranged outside the rotating disk 3, the threaded cylinder 805 is fixedly connected to the front of the rotating disk 3, an adjusting cylinder 806 is slidably connected to the outside of the threaded cylinder 805, a second motor 807 is fixedly connected to the front of the adjusting cylinder 806, an output end of the second motor 807 is fixedly connected to a second rotating threaded rod 808, the second rotating threaded rod 808 is threadedly connected to the inside of the threaded cylinder 805, a fixing block 809 is fixedly connected to the outside of the adjusting cylinder 806, a rotating bracket 810 is rotatably connected to the outside of the fixing block 809, a supporting vertical plate 811 is rotatably connected to the inside of the rotating bracket 810, a fixed limiting plate 812 is fixedly connected to the outside of the motor rotating shaft 2, a fixed sliding block 813 is slidably connected to the inside of the fixed limiting plate 812, the fixed sliding block 813 is fixedly connected to the back of the supporting vertical plate 811, a limiting clamping plate 814 is fixedly connected to the back of the fixed sliding block 813. By driving the second rotating threaded rod 808 to rotate through the provided second motor 807, under the condition of the threaded connection between the second rotating threaded rod 808 and the threaded cylinder 805, it drives the adjusting cylinder 806 to slide outside the threaded cylinder 805. Under the limitation of the groove opened inside the fixed limiting plate 812 by the provided fixed sliding block 813, it drives the rotating bracket 810 to rotate. By the rotation of the rotating bracket 810, it drives the supporting vertical plate 811 to be adjusted so that the supporting vertical plate 811 is fixed to the eccentric distance adjusting disk 4. A sliding groove is opened at the corresponding position of the fixed limiting plate 812 for the fixed sliding block 813, and the fixed sliding block 813 slides inside the sliding groove. Through the sliding groove opened at the position corresponding to the fixed sliding block 813 inside the fixed limiting plate 812, the fixed sliding block 813 is limited when sliding inside the sliding groove. There are several fixing blocks 809, and the several fixing blocks 809 are evenly and fixedly connected to the outside of the adjusting cylinder 806. Through the provided several fixing blocks 809, the eccentric distance adjusting disk 4 is made more stable when being fixed.

[0017] Please refer to Figure 2 - Figure 3, in this embodiment, a first motor 801 is fixedly connected to the outside of the eccentric distance adjusting disk 4. The output end of the first motor 801 is fixedly connected to a first rotating threaded rod 802. The first rotating threaded rod 802 is rotatably connected to the inside of the eccentric distance adjusting disk 4. A sliding threaded block 803 is threadedly connected to the outside of the first rotating threaded rod 802. A rotating shaft 804 is fixedly connected to the front of the sliding threaded block 803. By driving the first rotating threaded rod 802 to rotate inside the eccentric distance adjusting disk 4 through the provided first motor 801, under the condition of the threaded connection between the first rotating threaded rod 802 and the rotating shaft 804, the sliding threaded block 803 slides inside the eccentric distance adjusting disk 4, so that the eccentricity of the rotating shaft 804 can be adjusted. A chute is provided at the corresponding position of the eccentric distance adjusting disk 4 for the sliding threaded block 803. The sliding threaded block 803 slides inside the chute. Through the chute provided at the corresponding position of the sliding threaded block 803 inside the eccentric distance adjusting disk 4, the sliding threaded block 803 is limited when sliding inside the chute.

[0018] Please refer to Figure 4 - Figure 6 , in this embodiment, the brake assembly includes a support mounting seat 901. A connection fixing seat 902 is fixedly connected to the front of the support mounting seat 901. A first clamping shell 903 is fixedly connected to the back of the connection fixing seat 902. A second clamping shell 905 is provided on the front of the first clamping shell 903. An air pressure pump 906 is provided on the front of the second clamping shell 905. An air flow port 907 is provided inside the air pressure pump 906. A telescopic extrusion block 908 is slidably connected to the inside of the air pressure pump 906. A limiting fixing rod 909 is fixedly connected to the front of the first clamping shell 903. The limiting fixing rod 909 is slidably connected to the inside of the air pressure pump 906. A fixing bolt 910 is provided between the first clamping shell 903 and the second clamping shell 905. Through the fixation of the connection fixing seat 902 and the support mounting seat 901, the first clamping shell 903 can be fixed to the outside of the hydraulic motor body 1, so that the rotating disk 3 can rotate inside the first clamping shell 903. Under the limiting and guiding of the limiting fixing rod 909, the fixing bolt 910 fixes the first clamping shell 903 and the second clamping shell 905. When braking, pressure is applied through the provided air flow port 907, so that the telescopic extrusion block 908 slides inside the air pressure pump 906, and the telescopic extrusion block 908 contacts the rotating disk 3 to limit the rotation of the rotating disk 3. Two fixing bolts 910 are provided, and the two fixing bolts 910 are provided between the first clamping shell 903 and the second clamping shell 905. By providing two fixing bolts 910, it is more stable when fixing the first clamping shell 903 and the second clamping shell 905.

[0019] When working, when fixing the eccentric distance adjustment disc 4, the second rotating threaded rod 808 is driven to rotate by the second motor 807 provided. Under the condition of the threaded connection between the second rotating threaded rod 808 and the threaded barrel 805, it drives the adjusting barrel 806 to slide outside the threaded barrel 805. Under the limitation of the groove opened in the fixed limiting plate 812 by the fixed slider 813 provided, it drives the rotating bracket 810 to rotate. Through the rotation of the rotating bracket 810, the supporting vertical plate 811 is driven to be adjusted so that the supporting vertical plate 811 is fixed to the eccentric distance adjustment disc 4. When adjusting, the first rotating threaded rod 802 is driven to rotate inside the eccentric distance adjustment disc 4 by the first motor 801 provided. Under the condition of the threaded connection between the first rotating threaded rod 802 and the rotating shaft 804, the sliding threaded block 803 slides inside the eccentric distance adjustment disc 4, so that the eccentricity of the rotating shaft 804 can be adjusted. Through the fixation of the connecting fixed seat 902 and the supporting mounting seat 901, the first shell 903 can be fixed outside the hydraulic motor body 1, so that the rotating disc 3 can rotate inside the first shell 903. Under the limiting and guiding of the limiting fixed rod 909, the fixing bolt 910 fixes the first shell 903 and the second shell 905. When braking, the air flow port 907 is pressurized, so that the telescopic extrusion block 908 slides inside the air pressure pump 906, and the telescopic extrusion block 908 contacts the rotating disc 3 to restrict the rotation of the rotating disc 3.

[0020] Through the above steps, under the limitation of the groove opened in the fixed limiting plate 812 by the fixed slider 813 provided, the rotating bracket 810 is driven to rotate. Through the rotation of the rotating bracket 810, the supporting vertical plate 811 is driven to be adjusted so that the supporting vertical plate 811 is fixed to the eccentric distance adjustment disc 4, so as to solve the problem that angle errors may occur when installing the eccentric disc of the eccentric distance adjustable hydraulic motor. Such errors may be caused by reasons such as unstable installation brackets, improper selection of couplings, or failure to use appropriate positioning tools during installation. Angle errors will also affect the performance of the hydraulic motor and may even endanger the normal operation and safety of the equipment.

Claims

1. An eccentricity adjustable hydraulic motor, comprising a hydraulic motor body, characterized in that: It also includes a threaded cylinder and a brake assembly, a motor shaft is arranged inside the hydraulic motor body, a rotating disk is fixedly connected to the outside of the motor shaft, an eccentric distance adjusting disk is arranged outside the motor shaft, the brake assembly is arranged outside the rotating disk, the threaded cylinder is fixedly connected to the front side of the rotating disk, an adjusting cylinder is slidably connected to the outside of the threaded cylinder, a second motor is fixedly connected to the front side of the adjusting cylinder, a second rotating threaded rod is fixedly connected to the output end of the second motor, the second rotating threaded rod is threadedly connected to the inside of the threaded cylinder, a fixed block is fixedly connected to the outside of the adjusting cylinder, a rotating bracket is rotatably connected to the outside of the fixed block, a supporting vertical plate is rotatably connected to the inside of the rotating bracket, a fixed limiting plate is fixedly connected to the outside of the motor shaft, a fixed sliding block is slidably connected to the inside of the fixed limiting plate, the fixed sliding block is fixedly connected to the back of the supporting vertical plate, and the back of the fixed sliding block is fixedly connected to the limiting clamping plate.

2. The eccentricity adjustable hydraulic motor according to claim 1, characterized in that: The fixed limiting plate is provided with a sliding groove at a position corresponding to the fixed sliding block, and the fixed sliding block slides inside the sliding groove.

3. The eccentricity adjustable hydraulic motor according to claim 1, characterized in that: A plurality of fixing blocks are provided, and the plurality of fixing blocks are evenly fixedly connected to the outside of the adjusting cylinder.

4. The eccentricity adjustable hydraulic motor according to claim 1, characterized in that: The outside of the eccentric distance adjusting disk is fixedly connected to a first motor, the output end of the first motor is fixedly connected to a first rotating threaded rod, the first rotating threaded rod is rotatably connected to the inside of the eccentric distance adjusting disk, the external thread of the first rotating threaded rod is threadedly connected to a sliding threaded block, and the front of the sliding threaded block is fixedly connected to a rotating shaft.

5. The eccentricity adjustable hydraulic motor according to claim 4, characterized in that: The eccentric distance adjusting disk is provided with a sliding groove at a position corresponding to the sliding thread block, and the sliding thread block slides inside the sliding groove.

6. The eccentricity adjustable hydraulic motor according to claim 1, characterized in that: The brake assembly includes a supporting mounting seat, a connecting mounting seat is fixedly connected to the front of the supporting mounting seat, a first card shell is fixedly connected to the back of the connecting mounting seat, a second card shell is arranged on the front of the first card shell, an air pressure pump is arranged on the front of the second card shell, an air flow port is opened inside the air pressure pump, a telescopic extrusion block is slidably connected to the inside of the air pressure pump, a limited fixing rod is fixedly connected to the front of the first card shell, the limited fixing rod is slidably connected to the inside of the air pressure pump, and a fixing bolt is arranged between the first card shell and the second card shell.

7. The eccentricity adjustable hydraulic motor according to claim 6, characterized in that: Two fixing bolts are provided, and the two fixing bolts are arranged between the first card shell and the second card shell.

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