A turntable for engineering machinery with a hydraulic clamping disc

Abstract

This utility model discloses a turntable for engineering machinery with a hydraulic clamping disc, belonging to the field of engineering machinery. It includes a turntable and a hydraulic clamping disc, with the hydraulic clamping disc located at the edge of the turntable. Friction plates are provided on the hydraulic clamping disc, and a piston rod is slidably connected inside the hydraulic clamping disc. Two clamping plates are provided on the friction plates, and a limit frame is slidably connected between the two clamping plates. The limit frame is fixedly connected to the friction plates. Rotating rods are rotatably connected to the clamping plates, and moving blocks are rotatably connected to the ends of the rotating rods of the two clamping plates that are close to each other. A first bidirectional lead screw is threaded between the two moving blocks. Each clamping plate consists of arc-shaped clamping blocks at both ends and connecting plates, with the arc-shaped clamping blocks at both ends fixedly connected by the connecting plates. Through the coordinated use of the above devices, the easily worn friction plates can be quickly replaced.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, specifically a turntable for engineering machinery with a hydraulic clamping disc. Background Technology

[0002] Hydraulic clamping discs are key components in construction machinery used for clamping, rotating, or fixing loads, and are widely used in automobiles, rotary drilling rigs, demolition equipment, lifting machinery, and other fields. Their core function is to achieve high-precision and high-force clamping operations through hydraulic drive.

[0003] The turntable used in construction machinery is braked by a hydraulic caliper. The friction plates on the hydraulic caliper are driven by hydraulic force and clamped to the turntable, thereby achieving braking of the turntable. Since braking is frequently required, the friction plates are wear parts. Existing friction plates are usually connected to the piston rod. When replacing them, the piston rod and friction plates need to be replaced at the same time. At this time, the piston rod has not yet reached the end of its service life, so replacing them at the same time is wasteful.

[0004] Therefore, this utility model provides a turntable for engineering machinery with a hydraulic clamping disc to solve the above problems. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] This invention provides a turntable for engineering machinery with a hydraulic clamping disc, aiming to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a turntable for engineering machinery with a hydraulic clamping disc, comprising a wheel and a hydraulic clamping disc, wherein the hydraulic clamping disc is located at the edge of the wheel, a friction plate is provided on the hydraulic clamping disc, and a piston rod is slidably connected inside the hydraulic clamping disc; two clamping plates are provided on the friction plate, a limit frame is slidably connected between the two clamping plates, the limit frame is fixedly connected to the friction plate, a rotating rod is rotatably connected to the clamping plate, and a moving block is rotatably connected to the ends of the rotating rods of the two clamping plates that are close to each other, and a first bidirectional lead screw is threadedly connected between the two moving blocks.

[0009] As a preferred technical solution of this application, the clamping piece is composed of arc-shaped clamping blocks at both ends and a connecting plate. The arc-shaped clamping blocks at both ends are fixedly connected by the connecting plate. The arc-shaped clamping blocks clamp the piston rod. The connecting plate has a slot corresponding to the limiting frame. The upper part of the limiting frame is slidably connected to the connecting plate.

[0010] As a preferred technical solution of this application, the rotating rod is rotatably connected to the side of the two connecting plates that are close to each other, the two ends of the friction plate are slidably connected to fixed seats, the friction plate is fixedly connected to a fixed rail, and the fixed seat is slidably connected to the fixed rail.

[0011] As a preferred technical solution of this application, the fixed base is provided with a dovetail groove, and the two ends of the dovetail groove are slidably connected to the movable frame. The fixed base is rotatably connected with a second bidirectional lead screw, and the opposite threads of the second bidirectional lead screw are threadedly connected to the two movable frames.

[0012] As a preferred technical solution of this application, a positioning column is fixedly connected to the movable frame, and a positioning hole that cooperates with the positioning column is opened on the arc-shaped clamping block.

[0013] As a preferred technical solution of this application, the two opposite ends of the hydraulic caliper are connected to brake seats, and a connecting oil pipe is connected between the two brake seats.

[0014] (III) Beneficial Effects

[0015] 1. With the cooperation of the two clamping plates, rotating rod, moving block and first bidirectional lead screw, the friction plate and piston rod can be quickly disassembled and installed. The friction plate is a wear part and needs to be replaced regularly. The above components enable the quick disassembly of the friction plate.

[0016] 2. With the cooperation of the fixed seat, the second bidirectional lead screw, the movable frame, the positioning column and the positioning hole, the arc-shaped clamping blocks at both ends of the clamping plate can be fixed, thereby ensuring that the clamping plate can clamp the piston rod more stably. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a turntable for engineering machinery with a hydraulic clamping disc;

[0018] Figure 2 This is a schematic diagram of the structure of the hydraulic clamping disc in a turntable for engineering machinery.

[0019] Figure 3 A schematic diagram of the friction plate structure in a turntable for engineering machinery with a hydraulic clamping disc;

[0020] Figure 4 This is a schematic diagram of the friction plate in a turntable of an engineering machine with a hydraulic clamping disc from another perspective.

[0021] Figure 5 A turntable for engineering machinery with a hydraulic clamping disc. Figure 4 Enlarged structural diagram at point A in the middle;

[0022] In the picture:

[0023] 1. Wheel; 2. Hydraulic clamp disc; 3. Connecting oil pipe; 4. Brake seat; 5. Friction plate; 6. Piston rod; 7. Limit frame; 8. Clamping plate; 9. Rotating rod; 10. Moving block; 11. First double-acting lead screw; 12. Fixed rail; 13. Fixed seat; 14. Second double-acting lead screw; 15. Moving frame; 16. Positioning pin; 17. Positioning hole. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] This utility model provides a turntable for engineering machinery with a hydraulic clamping disc, such as... Figure 1-5 As shown, the utility model includes a wheel 1 and a hydraulic clamp 2. The hydraulic clamp 2 is located at the edge of the wheel 1. A friction plate 5 is provided on the hydraulic clamp 2. A piston rod 6 is slidably connected inside the hydraulic clamp 2. Two clamping plates 8 are provided on the friction plate 5. A limit frame 7 is slidably connected between the two clamping plates 8. The limit frame 7 and the friction plate 5 are fixedly connected. A rotating rod 9 is rotatably connected to the clamping plate 8. A moving block 10 is rotatably connected to the end of the rotating rod 9 where the two clamping plates 8 are close to each other. A first bidirectional lead screw 11 is threadedly connected between the two moving blocks 10.

[0026] Through the above technical solution, with the cooperation of two clamping plates 8, rotating rod 9, moving block 10 and first bidirectional lead screw 11, the friction plate 5 and piston rod 6 can be quickly disassembled and installed. When the friction plate is worn out due to repeated use and needs to be replaced, the first bidirectional lead screw 11 is rotated to drive the two moving blocks 10 to move relative to each other. The two moving blocks 10 further drive the rotating rod 9, which is rotatably connected to them, to rotate. The rotating rod 9 further drives the clamping plates 8 to slide along the limiting frame 7, so that the two clamping plates 8 eventually come closer to each other, and finally clamp the piston rod 6, thereby connecting the piston rod 6 and the friction plate 5 together.

[0027] like Figure 3-4 As shown, the clamping piece 8 consists of arc-shaped clamping blocks at both ends and a connecting plate. The arc-shaped clamping blocks at both ends are fixedly connected by the connecting plate. The arc-shaped clamping blocks clamp the piston rod 6. The connecting plate has a slot corresponding to the limiting frame 7. The upper part of the limiting frame 7 is slidably connected to the connecting plate. The limiting frame 7 limits the clamping piece 8 to ensure that the two clamping pieces 8 will not shift.

[0028] like Figure 3-4As shown, the rotating rod 9 is rotatably connected to the side of the two connecting plates that are close to each other. The two ends of the friction plate 5 are slidably connected to the fixed seat 13. The friction plate 5 is fixedly connected to the fixed rail 12. The fixed seat 13 is slidably connected to the fixed rail 12.

[0029] like Figure 5 As shown, a dovetail groove is provided on the fixed base 13, and a movable frame 15 is slidably connected to both ends of the dovetail groove. A second bidirectional lead screw 14 is rotatably connected to the fixed base 13, and the two movable frames 15 are threadedly connected to the opposite threads of the second bidirectional lead screw 14.

[0030] like Figure 5 As shown, a positioning post 16 is fixedly connected to the movable frame 15, and a positioning hole 17 that mates with the positioning post 16 is provided on the arc-shaped clamping block.

[0031] Through the above technical solution, with the cooperation of the fixed base 13, the second bidirectional lead screw 14, the movable frame 15, the positioning post 16, and the positioning hole 17, the arc-shaped clamping blocks at both ends of the clamping piece 8 can be fixed, thereby ensuring that the clamping piece 8 can clamp the piston rod 6 more stably. The specific process is as follows: after the two clamping pieces 8 overlap, the fixed base 13 is moved to move the positioning post 16 on the movable frame 15 to the positioning hole 17. Then, the second bidirectional lead screw 14 is rotated, and the second bidirectional lead screw 14 further drives the two movable frames 15 to move, so that the positioning post 16 on the movable frame 15 and the positioning hole 17 are inserted, and finally the clamping piece 8 is fixed.

[0032] like Figure 1 As shown, brake seats 4 are connected to the two opposite ends of the hydraulic caliper disc 2, and a connecting oil pipe 3 is connected between the two brake seats 4.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A turntable for engineering machinery with a hydraulic clamping disc, comprising a turntable (1) and a hydraulic clamping disc (2), characterized in that: The hydraulic clamp disc (2) is located at the edge of the wheel disc (1), and a friction plate (5) is provided on the hydraulic clamp disc (2). A piston rod (6) is slidably connected inside the hydraulic clamp disc (2). Two clamping plates (8) are provided on the friction plate (5). A limiting frame (7) is slidably connected between the two clamping plates (8). The limiting frame (7) and the friction plate (5) are fixedly connected. A rotating rod (9) is rotatably connected to the clamping plate (8). A moving block (10) is rotatably connected to the end of the rotating rod (9) that is close to each other between the two clamping plates (8). A first bidirectional lead screw (11) is threaded between the two moving blocks (10).

2. The turntable for engineering machinery with a hydraulic clamping disc according to claim 1, characterized in that: The clamping piece (8) consists of arc-shaped clamping blocks at both ends and a connecting plate. The arc-shaped clamping blocks at both ends are fixedly connected by the connecting plate. The arc-shaped clamping blocks clamp the piston rod (6). The connecting plate has a slot corresponding to the limiting frame (7). The upper part of the limiting frame (7) is slidably connected to the connecting plate.

3. The turntable for engineering machinery with a hydraulic clamping disc according to claim 2, characterized in that: The rotating rod (9) is rotatably connected to the side of the two connecting plates that are close to each other. The two ends of the friction plate (5) are slidably connected to the fixed seat (13). The friction plate (5) is fixedly connected to the fixed rail (12). The fixed seat (13) is slidably connected to the fixed rail (12).

4. A turntable for engineering machinery with a hydraulic clamping disc according to claim 3, characterized in that: The fixed base (13) is provided with a dovetail groove, and the two ends of the dovetail groove are slidably connected to the movable frame (15). The fixed base (13) is rotatably connected to a second bidirectional lead screw (14), and the opposite threads of the second bidirectional lead screw (14) are threadedly connected to the two movable frames (15).

5. A turntable for engineering machinery with a hydraulic clamping disc according to claim 4, characterized in that: A positioning post (16) is fixedly connected to the movable frame (15), and a positioning hole (17) that cooperates with the positioning post (16) is provided on the arc-shaped clamp.

6. A turntable for engineering machinery with a hydraulic clamping disc according to claim 1, characterized in that: The hydraulic caliper disc (2) has brake seats (4) connected to its two opposite ends, and a connecting oil pipe (3) is connected between the two brake seats (4).

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