Brake unit of hydraulic system driver

Abstract

The utility model relates to the technical field of hydraulic system drivers, in particular to a brake unit of a hydraulic system driver, which comprises a hydraulic driver body with a driving shaft, a brake plate is arranged at the bottom of the hydraulic driver body, brake notches in a linear array are arranged on the brake plate, and the brake notches are arranged on the hydraulic driver body. The outer surface of the driving shaft is fixedly connected with a fixed block, a cavity is formed in the fixed block, a movable frame capable of moving up and down is arranged in the fixed block, and the bottom of the movable frame is fixedly connected with a brake block. Under the condition that extension of the driving shaft is not affected, when hydraulic pressure in the hydraulic driver body is abnormal and cannot provide enough driving force for the driving shaft, and when the driving shaft contracts due to external pressure, the brake block can be clamped into the brake notch, and the driving shaft is braked rapidly.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic system drivers, in particular to a hydraulic system driver brake unit. Background Art

[0002] A hydraulic system refers to a power transmission system that transfers energy through a liquid medium. It consists of hydraulic fluid, oil pumps, valves, actuators, control elements and accessories.

[0003] In the prior art, a hydraulic driver, such as that proposed in patent application number "CN202121836132.X", includes a driver body, a fixing mechanism is fixedly provided at the lower end of the driver body, a connecting mechanism is fixedly provided at the upper end of the fixing mechanism, and a rotating mechanism is provided at the rear end of the connecting mechanism.

[0004] However, in the above patent application, the drive shaft as an actuator can only extend and retract under the action of hydraulic pressure. When the hydraulic system fails to provide sufficient driving force, there is a lack of braking on the drive shaft, causing the drive shaft to contract under external pressure, posing a safety hazard. Utility Model Content

[0005] The utility model aims to provide a hydraulic system driver brake unit to solve the problems raised in the above background technology.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A hydraulic system driver brake unit comprises a hydraulic driver body with a driving shaft. A brake plate is arranged at the bottom of the hydraulic driver body, and brake notches in a linear array are arranged on the brake plate.

[0008] A fixed block is fixedly connected to the outer surface of the driving shaft, a cavity is provided inside the fixed block, a movable frame that can move up and down is provided inside the fixed block, a brake block is fixedly connected to the bottom of the movable frame, the bottom of the brake block passes through the fixed block and extends to the outside of the fixed block, the brake block is tilted away from the side of the hydraulic driver body, and the brake block and the brake notch are adapted to each other.

[0009] Preferably, the movable frame comprises a top movable plate and a bottom movable plate, and two connecting plates are fixedly connected between the top movable plate and the bottom movable plate, and the two connecting plates are respectively arranged on both sides of the driving shaft.

[0010] Preferably, the brake block is fixed below the bottom movable plate, a guide rod is fixedly connected inside the fixed block, and the guide rod and the bottom movable plate are slidably connected.

[0011] Preferably, the top of the fixed block is fixedly connected to two connecting sleeves, the inner wall of the connecting sleeve is fixedly connected to a pressure spring, and the bottom of the pressure spring is fixedly connected to the top movable plate.

[0012] Preferably, a threaded sleeve is fixedly connected to the top of the fixed block and located between the two connecting sleeves, a control screw is threadedly connected to the threaded sleeve, the bottom of the control screw passes through the top movable plate and extends to the bottom of the top movable plate, and a limiting ring is fixedly connected to the bottom of the control screw.

[0013] Preferably, two support plates are provided at the bottom of the hydraulic driver body, a load-bearing component is fixedly connected between the two support plates, the brake plate and the load-bearing component are slidably connected, the bottom of the load-bearing component is fixedly connected to a limiting frame, the limiting frame is provided with fixing bolts, the fixing bolts pass through the brake plate and are threadedly connected to the load-bearing component, and are used to fix the brake plate to the load-bearing component.

[0014] Beneficial effects of the utility model:

[0015] The utility model fixes a fixing block on the driving shaft, and cooperates with a brake block and a brake notch at the bottom of the fixing block. When the hydraulic pressure inside the hydraulic driver body is abnormal and cannot provide sufficient driving force for the driving shaft, the driving shaft can be quickly braked when the driving shaft is contracted by external pressure, so as to avoid safety hazards caused by abnormal contraction of the driving shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the prior art description are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This utility model Figure 1 A schematic diagram of the structure of the bottom of the middle support plate;

[0019] Figure 3 This utility model Figure 1 The structural diagram of the fixed block;

[0020] Figure 4 This utility model Figure 3 Cross-sectional view of the fixing block.

[0021] The reference numerals in the figures are as follows:

[0022] 1. Hydraulic driver body, 2. Driving shaft, 3. Brake plate, 4. Brake notch, 5. Fixed block, 6. Movable frame, 601. Top movable plate, 602. Bottom movable plate, 603. Connecting plate, 7. Brake block, 8. Guide rod, 9. Connecting sleeve, 10. Pressure spring, 11. Threaded sleeve, 12. Control screw, 13. Limiting ring, 14. Support plate, 15. Bearing component, 16. Limiting frame, 17. Fixing bolt. DETAILED DESCRIPTION

[0023] 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 of 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.

[0024] A hydraulic system driver brake unit comprises a hydraulic driver body 1 with a drive shaft 2. A brake plate 3 is arranged at the bottom of the hydraulic driver body 1. The brake plate 3 is provided with brake notches 4 in a linear array.

[0025] The outer surface of the driving shaft 2 is fixedly connected with a fixed block 5, a cavity is provided inside the fixed block 5, a movable frame 6 which can move up and down is provided inside the fixed block 5, a brake block 7 is fixedly connected to the bottom of the movable frame 6, the bottom of the brake block 7 passes through the fixed block 5 and extends to the outside of the fixed block 5, the brake block 7 is tilted away from the side of the hydraulic driver body 1, and the brake block 7 and the brake slot 4 are adapted.

[0026] like Figure 1 and Figure 4 , with a drive shaft 2 and a hydraulic driver body 1 is the prior art. As a component of the hydraulic system, the drive shaft 2 can be extended and retracted under the action of hydraulic pressure. The bottom of the fixed block 5 has an opening, and the bottom of the brake block 7 can be inserted into the inside of the brake groove 4, and the drive shaft 2 passes through the fixed block 5.

[0027] The movable frame 6 includes a top movable plate 601 and a bottom movable plate 602 , and two connecting plates 603 are fixedly connected between the top movable plate 601 and the bottom movable plate 602 . The two connecting plates 603 are respectively arranged on both sides of the driving shaft 2 .

[0028] like Figure 1 and Figure 4 The top movable plate 601 and the bottom movable plate 602 are respectively located above and below the driving shaft 2, and the connecting plate 603 connects the top movable plate 601 and the bottom movable plate 602 so that the top movable plate 601 and the bottom movable plate 602 can move together.

[0029] The brake block 7 is fixed below the bottom movable plate 602 , and a guide rod 8 is fixedly connected inside the fixed block 5 , and the guide rod 8 and the bottom movable plate 602 are slidably connected.

[0030] like Figure 4 The guide rod 8 passes through the bottom movable plate 602 to guide the movement of the bottom movable plate 602 , so that the movable frame 6 can only move up and down in the direction of the guide rod 8 .

[0031] The top of the fixed block 5 is fixedly connected with two connecting sleeves 9 , the inner wall of the connecting sleeve 9 is fixedly connected with a pressure spring 10 , and the bottom of the pressure spring 10 is fixedly connected to the top movable plate 601 .

[0032] like Figure 4 The two connecting sleeves 9 and the pressure spring 10 are symmetrically arranged, and the pressure spring 10 applies downward pressure to the bottom movable plate 601.

[0033] A threaded sleeve 11 is fixedly connected to the top of the fixed block 5 and located between the two connecting sleeves 9, and a control screw 12 is threadedly connected to the threaded sleeve 11. The bottom of the control screw 12 passes through the top movable plate 601 and extends to the bottom of the top movable plate 601. A limiting ring 13 is fixedly connected to the bottom of the control screw 12.

[0034] like Figure 4 There is an opening on the top movable plate 601 for the control screw 12 to pass through, and the limiting ring 13 limits the maximum descending distance of the top movable plate 601. The top of the control screw 12 can be connected to a handle for manual control, or it can be connected to a motor that can rotate forward and reverse to achieve electrical control.

[0035] Two support plates 14 are provided at the bottom of the hydraulic driver body 1, a bearing component 15 is fixedly connected between the two support plates 14, the brake plate 3 and the bearing component 15 are slidably connected, the bottom of the bearing component 15 is fixedly connected to a limiting frame 16, and a fixing bolt 17 is provided on the limiting frame 16. The fixing bolt 17 passes through the brake plate 3 and is threadedly connected to the bearing component 15, so as to fix the brake plate 3 to the bearing component 15.

[0036] like Figure 1 and Figure 2 The support plate 14 and the bearing component 15 are used to support the hydraulic driver body 1, and the screw holes on the bearing component 15 are used to achieve threaded connection with the fixing bolts 17 to fix the brake plate 3.

[0037] The working principle of a hydraulic system driver brake unit provided by the utility model is as follows:

[0038] When the drive shaft 2 extends, the fixed block 5 is driven to move, and at this time, the inclined surface of the brake block 7 contacts the brake plate 3, and the inclined surface of the brake block 7 moves upward under pressure and separates from the brake notch 4, so that the cooperation between the brake block 7 and the brake notch 4 will not hinder the extension of the drive shaft 2;

[0039] When the hydraulic pressure inside the hydraulic driver body 1 is abnormal, causing the drive shaft 2 to contract abnormally, the movable frame 6 will be squeezed under the force of the pressure spring 10, so that the movable frame 6 and the brake block 7 move downward, and the brake block 7 is stuck in the brake notch 4 to brake the fixed block 5, so that the fixed block 5 cannot move, and the drive shaft 2 cannot continue to contract, thereby achieving braking when the drive shaft 2 contracts;

[0040] Before the drive shaft 2 needs to retract normally, the control screw 12 can be rotated to drive the limiting ring 13 to move upward, the limiting ring 13 drives the movable frame 6 to move upward, and the movable frame 6 drives the brake block 7 to move upward. At this time, the brake block 7 will not affect the normal retraction of the drive shaft 2.

[0041] Compared with the related art, the hydraulic system driver brake unit provided by the utility model has the following beneficial effects:

[0042] The utility model fixes a fixing block 5 on the driving shaft 2, and cooperates with a brake block 7 at the bottom of the fixing block 5 and a brake notch 4. When the hydraulic pressure inside the hydraulic driver body 1 is abnormal and cannot provide sufficient driving force for the driving shaft 2, and the driving shaft 2 is contracted by external pressure, the brake block 7 can be stuck in the brake notch 4 to quickly brake the driving shaft 2, without affecting the extension of the driving shaft 2. This can avoid safety hazards caused by abnormal contraction of the driving shaft 2.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A hydraulic system driver brake unit, comprising a hydraulic driver body (1) with a drive shaft (2), characterized in that: A brake plate (3) is provided at the bottom of the hydraulic drive body (1), and brake notches (4) are provided in a linear array on the brake plate (3); The outer surface of the driving shaft (2) is fixedly connected with a fixed block (5), the interior of the fixed block (5) is provided with a cavity, a movable frame (6) which can move up and down is provided inside the fixed block (5), a brake block (7) is fixedly connected to the bottom of the movable frame (6), the bottom of the brake block (7) passes through the fixed block (5) and extends to the outside of the fixed block (5), the brake block (7) is tilted away from the side of the hydraulic driver body (1), and the brake block (7) and the brake notch (4) are adapted to each other.

2. A hydraulic system driver brake unit according to claim 1, characterized in that: The movable frame (6) comprises a top movable plate (601) and a bottom movable plate (602), two connecting plates (603) are fixedly connected between the top movable plate (601) and the bottom movable plate (602), and the two connecting plates (603) are respectively arranged on both sides of the driving shaft (2).

3. A hydraulic system driver brake unit according to claim 2, characterized in that: The brake block (7) is fixed below the bottom movable plate (602), a guide rod (8) is fixedly connected inside the fixed block (5), and the guide rod (8) and the bottom movable plate (602) are slidably connected.

4. A hydraulic system driver brake unit according to claim 2, characterized in that: The top of the fixed block (5) is fixedly connected to two connecting sleeves (9), the inner wall of the connecting sleeve (9) is fixedly connected to a pressure spring (10), and the bottom of the pressure spring (10) is fixedly connected to the top movable plate (601).

5. A hydraulic system driver brake unit according to claim 4, characterized in that: A threaded sleeve (11) is fixedly connected to the top of the fixed block (5) and located between the two connecting sleeves (9), a control screw (12) is threadedly connected to the threaded sleeve (11), the bottom of the control screw (12) passes through the top movable plate (601) and extends to the bottom of the top movable plate (601), and a limiting ring (13) is fixedly connected to the bottom of the control screw (12).

6. A hydraulic system driver brake unit according to claim 1, characterized in that: Two support plates (14) are arranged at the bottom of the hydraulic driver body (1), a bearing component (15) is fixedly connected between the two support plates (14), the brake plate (3) and the bearing component (15) are slidably connected, the bottom of the bearing component (15) is fixedly connected to a limiting frame (16), a fixing bolt (17) is arranged on the limiting frame (16), the fixing bolt (17) passes through the brake plate (3) and is threadedly connected to the bearing component (15), and is used to fix the brake plate (3) to the bearing component (15).

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