Hydraulic motor fixing device for excavator
By introducing a displacement block and a transmission gear system into the hydraulic motor fixing device, the problem of the existing fixed bracket being unable to be adjusted is solved, achieving stable clamping of hydraulic motors of different sizes and improving applicability.
Patent Information
- Application Number
- CN202520195343.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-07
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-02-07
AI Technical Summary
Existing hydraulic motor mounting brackets have a simple structure and cannot adjust the position of the mounting bracket according to the specifications and dimensions of the hydraulic motor, resulting in significant limitations in their use.
Design a hydraulic motor fixing device for excavators, which enables the replacement of hydraulic motors of different shapes through the clamping block at the top of the displacement block and the disassembly bolts, and adjusts the mounting seat through the transmission gear system to accommodate hydraulic motors of different sizes.
It achieves stable clamping of hydraulic motors of different sizes, improving the applicability and flexibility of the device.
Smart Images

Figure CN223937243U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of hydraulic motor fixing devices, and in particular to a hydraulic motor fixing device for excavators. Background Technology
[0002] A hydraulic motor is an actuator in a hydraulic system that converts the liquid pressure energy provided by a hydraulic pump into the mechanical energy (torque and speed) of its output shaft. Liquid is the medium for transmitting force and motion. Hydraulic motors, also known as oil motors, are mainly used in injection molding machinery, ships, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, marine machinery, petrochemicals, port machinery, etc.
[0003] Currently, larger hydraulic motors require a fixed bracket to be installed at the bottom during use. However, the existing fixed bracket structure is relatively simple and cannot be adjusted according to the specifications and dimensions of the hydraulic motor, which greatly limits its use and is quite inconvenient.
[0004] Therefore, given that the existing fixed bracket structure is relatively simple and cannot adjust the position of the mounting base according to the specifications and dimensions of the hydraulic motor, resulting in significant limitations and inconvenience, a hydraulic motor fixing device for excavators can be designed. This device features a clamping block at the top of a displacement block, allowing the clamping block to be replaced according to different shapes of hydraulic motors by removing and installing bolts. Subsequently, the displacement block moves inside the mounting base, enabling the clamping block to clamp hydraulic motors of different sizes. Utility Model Content
[0005] To overcome the limitations of existing fixed bracket structures, which are relatively simple and cannot adjust the position of the mounting base according to the specifications and dimensions of the hydraulic motor, resulting in significant limitations and inconvenience.
[0006] The technical solution of this utility model is as follows: a hydraulic motor fixing device for excavators, including a device base, a placement seat at the center of the top surface of the device base, displacement blocks at all four ends of the top surface of the placement seat, a clamping block at the top of the displacement block, a movable groove at the bottom of the displacement block located inside the placement seat, the bottom of the displacement block extending to the inside of the movable groove, a transmission disc at the bottom of the displacement block located on the inner wall of the placement seat, a first transmission gear and a second transmission gear on the outer end face of the transmission disc, the top of the first transmission gear extending to one side of the displacement block.
[0007] Preferably, the top of the displacement block is provided with a clamping block, so that the clamping block can be replaced according to the different shapes of hydraulic motors by removing and installing bolts. Then, the displacement block moves inside the placement seat, so that the clamping block can clamp hydraulic motors of different sizes.
[0008] Preferably, the rear end of the clamping block is provided with a mounting groove inside the displacement block, and the rear end of the clamping block extends to the inside of the mounting groove.
[0009] Preferably, a bolt is provided at the top of the rear end face of the clamping block, the bolt extends through the clamping block to the inside of the displacement block, and the clamping block and the displacement block are fixedly connected by the bolt.
[0010] Preferably, the inner side of the clamping block is provided with a heat insulation layer.
[0011] Preferably, there are four first transmission gears, and a toothed block is provided on one side of the top of the first transmission gear located on the outer side of the displacement block. The first transmission gear meshes with the transmission disc and the displacement block respectively.
[0012] Preferably, a servo motor is located below the second transmission gear on the inner side of the mounting base, with the bottom end of the second transmission gear extending to the output end of the top of the servo motor, and the servo motor connected to the second transmission gear via a coupling.
[0013] Preferably, an operation panel is provided at one end of the outer end face of the device base, and the operation panel is electrically connected to the servo motor.
[0014] The beneficial effects of this utility model are:
[0015] This hydraulic motor fixing device has a clamping block at the top of the displacement block, which can be replaced by removing and installing bolts to accommodate different shaped hydraulic motors. Then, the second transmission gear can be controlled by the operation panel to drive the transmission disc to rotate. The transmission disc is connected to the displacement block through the first transmission gear, which facilitates the placement of the seat and clamping of hydraulic motors of different sizes, thus improving the applicability of the device. Attached Figure Description
[0016] Figure 1 The diagram shown is a schematic representation of the overall structure of this utility model.
[0017] Figure 2 The diagram shown is a structural schematic of the placement base of this utility model;
[0018] Figure 3 The diagram shown is a structural schematic of the first transmission gear of this utility model;
[0019] Figure 4 The diagram shown is a structural schematic of the displacement block of this utility model.
[0020] Explanation of reference numerals in the attached drawings: 1. Device base; 2. Placement seat; 3. Displacement block; 4. Clamping block; 5. Movable groove; 6. Operation panel; 7. Transmission disc; 8. First transmission gear; 9. Second transmission gear; 10. Gear block; 11. Bolt; 12. Mounting groove. Detailed Implementation
[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0022] Please see Figures 1-4 This utility model provides a technical solution: a hydraulic motor fixing device for excavators, including a device base 1, a placement seat 2 at the center of the top surface of the device base 1, displacement blocks 3 at all four ends of the top surface of the placement seat 2, a clamping block 4 at the top of the displacement block 3, a movable groove 5 at the bottom of the displacement block 3 located inside the placement seat 2, the bottom of the displacement block 3 extending to the inside of the movable groove 5, a transmission disc 7 at the bottom of the displacement block 3 located on the inner wall of the placement seat 2, a first transmission gear 8 and a second transmission gear 9 at the outer end face of the transmission disc 7, the top of the first transmission gear 8 extending to one side of the displacement block 3, so that when the hydraulic motor is placed in the placement seat 2, the second transmission gear 9 can be controlled by the operation panel 6 to drive the transmission disc 7 to rotate, and the transmission disc 7 is connected to the displacement block 3 through the first transmission gear 8, thereby facilitating the placement seat 2 to clamp hydraulic motors of different sizes and improving the applicability of the device;
[0023] Please see Figures 2-3 In this embodiment, the rear end of the clamping block 4 is provided with an installation groove 12 inside the displacement block 3. The rear end of the clamping block 4 extends to the inside of the installation groove 12. The top end of the rear end face of the clamping block 4 is provided with a bolt 11. The bolt 11 passes through the clamping block 4 and extends to the inside of the displacement block 3. The clamping block 4 and the displacement block 3 are fixedly connected by the bolt 11. The inner side of the clamping block 4 is provided with a heat insulation layer. Thus, the clamping block 4 can be replaced by the displacement block 3 according to different shaped hydraulic motors by removing and installing the bolt 11.
[0024] Please see Figures 3-4 The device has four first transmission gears 8. One side of the top of the first transmission gear 8 is provided with a tooth block 10 on the outer side of the displacement block 3. The first transmission gear 8 meshes with the transmission disc 7 and the displacement block 3 respectively. The second transmission gear 9 is provided with a servo motor on the inner side of the placement base 2 below it. The bottom end of the second transmission gear 9 extends to the output end of the top of the servo motor. The servo motor is connected to the second transmission gear 9 through a coupling. One end of the outer end face of the device base 1 is provided with an operation panel 6. The operation panel 6 is electrically connected to the servo motor, and the device is controlled through the operation panel 6.
[0025] When the hydraulic motor is placed in the placement seat 2, the power is turned on and the device is started. The top of the displacement block 3 is equipped with a clamping block 4, so the clamping block 4 can be replaced according to the different shapes of the hydraulic motor by removing and installing bolts 11. Then, the second transmission gear 9 can be controlled by the operation panel 6 to drive the transmission disc 7 to rotate. The transmission disc 7 is connected to the displacement block 3 through the first transmission gear 8, which makes it easier for the placement seat 2 to clamp hydraulic motors of different sizes and improves the applicability of the device.
[0026] Through the above steps, the clamping block 4 is provided at the top of the displacement block 3, so the clamping block 4 can be replaced according to the different shapes of hydraulic motors by removing and installing bolts 11. Then, the displacement block 3 moves inside the placement seat 2, so that the clamping block 4 can clamp hydraulic motors of different sizes. This solves the problem that the existing fixed seat structure is relatively simple and cannot adjust the position of the mounting seat according to the specifications of the hydraulic motor, which has great limitations and is quite inconvenient.
Claims
1. A hydraulic motor fixing device for an excavator, comprising a device base (1); characterized in that: A placement seat (2) is provided at the center of the top surface of the device base (1). Displacement blocks (3) are provided at all four ends of the top surface of the placement seat (2). A clamping block (4) is provided at the top of the displacement block (3). An movable groove (5) is provided at the bottom of the displacement block (3) on the inner side of the placement seat (2). The bottom of the displacement block (3) extends to the inner side of the movable groove (5). A transmission disc (7) is provided at the bottom of the displacement block (3) on the inner wall of the placement seat (2). A first transmission gear (8) and a second transmission gear (9) are provided on the outer end face of the transmission disc (7). The top of the first transmission gear (8) extends to one side of the displacement block (3).
2. The hydraulic motor fixing device for excavators according to claim 1, characterized in that: The rear end of the clamping block (4) is located inside the displacement block (3) and is provided with a mounting groove (12). The rear end of the clamping block (4) extends to the inside of the mounting groove (12).
3. The hydraulic motor fixing device for excavators according to claim 1, characterized in that: A bolt (11) is provided at the top of the rear end face of the clamping block (4). The bolt (11) extends through the clamping block (4) to the inner side of the displacement block (3). The clamping block (4) and the displacement block (3) are fixedly connected by the bolt (11).
4. The hydraulic motor fixing device for excavators according to claim 1, characterized in that: The inner side of the clamping block (4) is provided with a heat insulation layer.
5. The hydraulic motor fixing device for excavators according to claim 1, characterized in that: The first transmission gear (8) is provided with four gears. One side of the top of the first transmission gear (8) is provided with a tooth block (10) on the outer side of the displacement block (3). The first transmission gear (8) meshes with the transmission disc (7) and the displacement block (3) respectively.
6. The hydraulic motor fixing device for excavators according to claim 1, characterized in that: A servo motor is located on the inner side of the placement base (2) below the second transmission gear (9). The bottom end of the second transmission gear (9) extends to the output end of the top of the servo motor. The servo motor is connected to the second transmission gear (9) through a coupling.
7. The hydraulic motor fixing device for excavators according to claim 1, characterized in that: An operation panel (6) is provided at one end of the outer end face of the device base (1), and the operation panel (6) is electrically connected to the servo motor.