A weight balancing device capable of accurately balancing weight and eliminating noise during balancing weight and a manufacturing method thereof

Abstract

The present invention relates to the technical field of lifting equipment, and in particular to a counterweight device that can accurately counterweight and eliminate noise during counterweighting, and a manufacturing method thereof, comprising a frame, on which a supporting device, a counterweight device, a water tank, and a lifting device are arranged in sequence from left to right, a cab is installed on the frame and at one end of the lifting device, a turntable is rotatably installed on the lower surface of the frame, a roller is installed on the lower surface of the turntable, a crawler is arranged on the outer shell of the roller, the counterweight device is slidably arranged on the frame, and the counterweight device is connected with the water tank through a water pipe, the water tank is fixed on the frame and the water tank is used to provide a water source for the counterweight device, the lifting device comprises a lifting frame fixed on the frame, a lifting hook is installed on the lifting frame, and the counterweight device comprises a frame body fixed on the frame. The present application solves the problems that when the existing lifting equipment is counterweighted, the noise generated by the counterweight is too loud and accurate counterweighting cannot be performed, and in addition, the lifting equipment is not stable enough during the lifting operation.

Description

Technical Field

[0001] The present invention relates to the technical field of lifting equipment, and in particular to a counterweight device capable of accurately counterweighting and eliminating noise during counterweighting, and a manufacturing method thereof. Background Art

[0002] The boom structure of the crane is divided into a truss boom and a box-shaped telescopic boom. The truss boom is mainly used in crawler cranes and ring rail cranes, etc. Its advantages are simple structure, large lifting capacity, small ground contact, and easy maintenance. When the existing lifting equipment is counterweighted, the noise generated by the counterweight is too loud and accurate counterweighting cannot be performed. In addition, when the lifting equipment is in lifting operation, the lifting equipment is not stable enough. In order to solve the above problems, we provide a counterweight device that can accurately counterweight and eliminate noise during counterweighting and a manufacturing method thereof. Summary of the invention

[0003] 1. Technical issues to be resolved

[0004] The invention aims to solve the problems that the noise generated by the counterweight during counterweighting of the existing lifting equipment is too loud and the counterweighting cannot be accurately performed, and the lifting equipment is not stable enough during the lifting operation. A counterweight device which can accurately counterweight and eliminate the noise during counterweighting and a manufacturing method thereof are provided.

[0005] (II) Technical solution

[0006] A counterweight device that can accurately counterweight and eliminate noise during counterweighting comprises a frame, on which a supporting device, a counterweight device, a water tank and a lifting device are arranged in sequence from left to right, a cab is installed on the frame and at one end of the lifting device, a turntable is rotatably installed on the lower surface of the frame, a roller is installed on the lower surface of the turntable, and a track is provided on the outer cover of the roller, the counterweight device is slidably arranged on the frame, and the counterweight device is connected to the water tank through a water pipe, the water tank is fixed on the frame and is used to provide water to the counterweight device, and the lifting device comprises a lifting frame fixed to the frame, and a lifting hook is installed on the lifting frame.

[0007] As a preferred technical solution, the counterweight device includes a frame fixed on the frame, a plurality of rollers are arranged on the frame and in sequence along the length direction of the frame, sliding rods are horizontally arranged on the frame and on both sides of the frame, a bottom plate is slidably arranged on the sliding rods, the lower surface of the bottom plate is in close contact with the rollers, a pair of columns are vertically fixed on the bottom plate, a plurality of counterweight blocks are mounted on the columns, the interior of the columns is hollow, and the columns and the water tank are connected to each other through water pipes.

[0008] As a preferred technical solution, a connecting block is fixed to the lower surface of the base plate, one of the sliding rods is formed with a thread, one of the connecting blocks is screwed to the sliding rod, and the other connecting block is connected to the sliding rod sleeve. Springs are provided on the sliding rod and on both sides of the base plate. A first rotating wheel is installed at one end of the sliding rod with the thread, a motor is fixed on the frame, a second rotating wheel is fixed to the output shaft end of the motor, and the first rotating wheel and the second rotating wheel are connected by a belt.

[0009] As a preferred technical solution, the supporting device includes a bracket fixed at one end of the frame, a first hydraulic cylinder is vertically arranged at both ends of the bracket, a second hydraulic cylinder is obliquely arranged inside the bracket, the first hydraulic cylinder and the second hydraulic cylinder are both rotatably mounted on the frame, and the output shaft end of the second hydraulic cylinder is hinged to the cylinder wall of the first hydraulic cylinder, a universal joint is also installed on the cylinder wall of the first hydraulic cylinder, and a locking mechanism is arranged at the end of the universal joint, and the locking mechanism is used to fix the universal joint to the frame.

[0010] As a preferred technical solution, the locking mechanism includes a slider fixed at the end of the universal joint, a slide groove is opened on the lower surface of the frame, the slider is embedded in the slide groove, a plug is inserted into the slider, a return spring is installed on the plug, a return spring is installed on the plug, a plurality of slots are opened on the slide groove and along the length direction of the slide groove, and the plug is embedded in the slot.

[0011] As an optimal technical solution, a water pipe tidying rack is horizontally fixed on the side wall of the frame, a tidying groove is opened on the water pipe tidying rack, a plurality of tidying sleeves are installed on the water pipes, each tidying sleeve is fixed with a card block, and the card block is embedded in the tidying groove.

[0012] As a preferred technical solution, a water pump is installed on the top of the water tank, and a water pipe is fixedly connected to the water pump.

[0013] The invention discloses a manufacturing method of a counterweight device which can accurately counterweight and eliminate noise during counterweight.

[0014] (III) Beneficial effects

[0015] The beneficial effects of the present invention are:

[0016] (1) A worker enters the cab and drives the device to a designated position. When the device is driven to the designated position, the second hydraulic cylinder is started, causing the output shaft of the second hydraulic cylinder to retract. The first hydraulic cylinder and the second hydraulic cylinder are both rotatably mounted on the frame, and the output shaft end of the second hydraulic cylinder is hinged to the cylinder wall of the first hydraulic cylinder. As a result, the retraction of the output shaft of the second hydraulic cylinder drives the first hydraulic cylinder to rotate clockwise until the first hydraulic cylinder is perpendicular to the ground. At this time, the first hydraulic cylinder is started, and the first hydraulic cylinder moves downward until it contacts the ground. By setting the first hydraulic cylinder and the second hydraulic cylinder, the first hydraulic cylinder and the second hydraulic cylinder are connected to the frame. The pressure cylinder fixes the frame to prevent it from moving and affecting the lifting operation. During lifting, a lifting hook is installed on the lifting frame. The lifting hook can be used to hook the heavy object for lifting. Counterweight is required during lifting. During lifting, multiple counterweight blocks are sequentially installed on the column according to the heavy object to be lifted. Furthermore, when the heavy object is too heavy, the water in the water tank is transported to the inside of the column through a water pump. The inside of the column is hollow, so appropriate water can be transported according to the weight of the heavy object. Counterweighting by water can not only accurately counterweight, but also eliminate the noise generated by the lifting of the counterweight block during counterweighting, saving time and effort.

[0017] (2) A connecting block is fixed to the lower surface of the bottom plate, one of the sliding rods is formed with a thread, one of the connecting blocks is screwed to the sliding rod, and the other connecting block is connected to the sliding rod sleeve. Springs are sleeved on the sliding rod and on both sides of the bottom plate. A first rotating wheel is installed at one end of the sliding rod with a thread, a motor is fixed to the frame, a second rotating wheel is fixed to the output shaft end of the motor, the first rotating wheel and the second rotating wheel are connected by a belt, the motor is started, the motor rotates to drive the second rotating wheel to rotate, the first rotating wheel and the second rotating wheel are connected by a belt, the second rotating wheel rotates to drive the first rotating wheel to rotate, the first rotating wheel rotates to drive the sliding rod with a thread to rotate, and the lower surface of the bottom plate. A connecting block is fixed, one of the sliding rods is formed with a thread, one of the connecting blocks is screwed to the sliding rod, and the other connecting block is connected to the sliding rod sleeve, driving the base plate to slide horizontally left and right on the sliding rod, thereby driving the column and the counterweight block to slide horizontally back and forth on the sliding rod. The lower surface of the base plate is in close contact with the roller. The purpose of the roller is to reduce the friction force generated by the base plate on the sliding rod so that the base plate can slide smoothly. When the column and the counterweight block slide to the leftmost position, it reaches the maximum value of the counterweight. When the column and the counterweight block slide to the rightmost position, it reaches the minimum value of the counterweight, so it can slide freely according to the lifted weight, thereby achieving the counterweight effect.

[0018] (3) When the lifting operation is completed, the first hydraulic cylinder rotates counterclockwise to start resetting and leaves the ground. At this time, the first hydraulic cylinder drives the slider to slide in the slide groove. When the first hydraulic cylinder is reset, the plug is pulled to embed the plug in the slot, thereby fixing the first hydraulic cylinder to prevent the first hydraulic cylinder from shaking after resetting.

[0019] (4) The present application solves the problem that the existing lifting equipment produces too loud a sound when balancing weights and cannot accurately balance weights. In addition, the lifting equipment is not stable enough during lifting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the structure of the present invention;

[0022] Figure 2 yes Figure 1 A partial enlarged view of part A;

[0023] Figure 3 yes Figure 1 A partial enlarged view of part B;

[0024] Figure 4 It is a schematic structural diagram of the support device of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the locking mechanism of the present invention;

[0026] 1-frame; 2-support device; 3-counterweight device; 4-water tank; 5-lifting device; 6-cab; 7-turntable; 8-roller; 9-track; 10-water pipe; 11-lifting frame; 12-lifting hook; 13-frame; 14-roller; 15-slide bar; 16-bottom plate; 17-column; 18-counterweight block; 19-spring; 20-motor; 21-first hydraulic cylinder; 22-second hydraulic cylinder; 23-universal joint; 24-slider; 25-slideway; 26-plug; 27-water pipe sorting frame; 28-sorting slot; 29-sorting sleeve; 30-block; 31-water pump; 32-slot; DETAILED DESCRIPTION

[0027] In conjunction with the accompanying drawings, a counterweight device and a manufacturing method thereof that can accurately counterweight and eliminate noise during counterweighting are further described. The present invention is further described in detail in conjunction with embodiments below:

[0028] A counterweight device that can accurately counterweight and eliminate noise during counterweighting includes a frame 1, on which a supporting device 2, a counterweight device 3, a water tank 4, and a lifting device 5 are arranged from left to right in sequence, a cab 6 is installed on the frame 1 and at one end of the lifting device 5, a turntable 7 is rotatably installed on the lower surface of the frame 1, a roller 8 is installed on the lower surface of the turntable 7, and a crawler 9 is arranged on the outer cover of the roller 8, the counterweight device 3 is slidably arranged on the frame 1, and the counterweight device 3 is connected to the water tank 4 through a water pipe 10, the water tank 4 is fixed on the frame 1 and is used to provide a water source for the counterweight device 3, and the lifting device 5 includes a lifting frame 11 fixed on the frame 1, and a lifting hook 12 is installed on the lifting frame 11.

[0029] Furthermore, the counterweight device 3 includes a frame 13 fixed on the frame 1, a plurality of rollers 14 are sequentially arranged on the frame 13 and along the length direction of the frame 13, a slide bar 15 is horizontally arranged on the frame 1 and on both sides of the frame 13, a bottom plate 16 is slidably arranged on the slide bar 15, and the lower surface of the bottom plate 16 is in close contact with the rollers 14. The purpose of the rollers 14 is to reduce the friction force generated by the bottom plate 16 on the slide bar 15 so that the bottom plate 16 can slide smoothly, and a pair of columns 17 are vertically fixed on the bottom plate 16, and a plurality of counterweights are sleeved on the columns 17 Block 18, the interior of the column 17 is hollow, and the column 17 and the water tank 4 are connected to each other through the water pipe 10. When lifting, a plurality of counterweight blocks 18 are sequentially mounted on the column 17 according to the weight to be lifted. Further, when the weight is too heavy, the water in the water tank 4 is transported to the interior of the column 17 through the water pump 31. The interior of the column 17 is hollow, so appropriate water can be transported according to the weight of the weight. Counterweighting by water can not only accurately counterweight, but also eliminate the noise generated by lifting the counterweight block 18 up and down during counterweighting, saving time and effort.

[0030] Furthermore, a connecting block is fixed to the lower surface of the bottom plate 16, one of the slide bars 15 is formed with a thread, one of the connecting blocks is screwed to the slide bar 15, and the other connecting block is connected to the slide bar 15 by a sleeve, and springs 19 are sleeved on the slide bar 15 and on both sides of the bottom plate 16, and a first rotating wheel is installed at one end of the slide bar 15 with a thread, and a motor 20 is fixed to the frame 1, and a second rotating wheel is fixed to the output shaft end of the motor 20, and the first rotating wheel is connected to the second rotating wheel by a belt, and the motor 20 is started, and the rotation of the motor 20 drives the second rotating wheel to rotate, and the first rotating wheel is connected to the second rotating wheel by a belt, and the rotation of the second rotating wheel drives the first rotating wheel to rotate, and the first rotating wheel rotates. The bottom plate 16 is driven to slide horizontally left and right on the slide rod 15, thereby driving the column 17 and the counterweight block 18 to slide horizontally back and forth on the slide rod 15. When the column 17 and the counterweight block 18 slide to the leftmost position, the maximum value of the counterweight is reached. When the column 17 and the counterweight block 18 slide to the rightmost position, the minimum value of the counterweight is reached. Therefore, the column 17 and the counterweight block 18 can slide freely according to the weight being lifted, thereby achieving the counterweight effect.

[0031] Furthermore, the supporting device 2 includes a bracket fixed at one end of the frame 1, and a first hydraulic cylinder 21 is vertically arranged at both ends of the bracket, and a second hydraulic cylinder 22 is obliquely arranged inside the bracket. The first hydraulic cylinder 21 and the second hydraulic cylinder 22 are both rotatably mounted on the frame 1, and the output shaft end of the second hydraulic cylinder 22 is hinged to the cylinder wall of the first hydraulic cylinder 21. A universal joint 23 is also installed on the cylinder wall of the first hydraulic cylinder 21, and a locking mechanism is arranged at the end of the universal joint 23. The locking mechanism is used to fix the universal joint 23 to the frame 1. When the device is opened to the specified position, the second hydraulic cylinder 22 Start, so that the second hydraulic cylinder 22 output shaft retracts, the first hydraulic cylinder 21 and the second hydraulic cylinder 22 are both rotatably mounted on the frame 1, and the output shaft end of the second hydraulic cylinder 22 is hinged to the cylinder wall of the first hydraulic cylinder 21, thereby, the retraction of the output shaft of the second hydraulic cylinder 22 drives the first hydraulic cylinder 21 to rotate clockwise until it rotates to be perpendicular to the ground, at this time, the first hydraulic cylinder 21 is started, and the first hydraulic cylinder 21 moves downward until it contacts the ground, and the frame 1 is fixed by arranging the first hydraulic cylinder 21 and the second hydraulic cylinder 22 to prevent its movement from affecting the lifting operation.

[0032] Furthermore, the locking mechanism includes a slider 24 fixed to the end of the universal joint 23, a slide groove 25 is opened on the lower surface of the frame 1, the slider 24 is embedded in the slide groove 25, a plug 26 is inserted into the slider 24, a return spring is installed on the plug 26, a return spring is installed on the plug 26, a plurality of slots 32 are opened on the slide groove 25 and along the length direction of the slide groove 25, the plug 26 is embedded inside the slot, when the lifting operation is completed, the first hydraulic cylinder 21 rotates counterclockwise to start resetting and leave the ground, at this time, the first hydraulic cylinder 21 drives the slider 24 to slide in the slide groove 25, when the first hydraulic cylinder 21 is reset, the plug 26 is pulled to embed the plug 26 inside the slot, thereby fixing the first hydraulic cylinder 21 to prevent the first hydraulic cylinder 21 from shaking after resetting.

[0033] Furthermore, a water pipe organizing rack 27 is horizontally fixed on the side wall of the frame 1, and an organizing groove 28 is opened on the water pipe organizing rack 27. A plurality of organizing sleeves 29 are installed on the water pipe 10, and a clamping block 30 is fixed on each organizing sleeve 29. The clamping block 30 is embedded in the organizing groove 28. By setting the water pipe organizing rack 27, the organizing groove 28, the organizing sleeve 29, and the clamping block 30 for coordinated use, the water pipe 10 can be prevented from being disrupted during use.

[0034] Furthermore, a water pump 31 is installed on the top of the water tank 4 , and the water pipe 10 is fixedly connected to the water pump 31 .

[0035] A counterweight device capable of accurately counterweighting and eliminating noise during counterweighting is provided to form a manufacturing method of the counterweight device.

[0036] Working principle: A worker enters the cab 6 and drives the device to the designated position. When the device is driven to the designated position, the second hydraulic cylinder 22 is started to retract the output shaft of the second hydraulic cylinder 22. The first hydraulic cylinder 21 and the second hydraulic cylinder 22 are both rotatably mounted on the frame 1, and the output shaft end of the second hydraulic cylinder 22 is hinged to the cylinder wall of the first hydraulic cylinder 21. As a result, the retraction of the output shaft of the second hydraulic cylinder 22 drives the first hydraulic cylinder 21 to rotate clockwise until the first hydraulic cylinder 21 is rotated to be perpendicular to the ground. At this time, the first hydraulic cylinder 21 is started, and the first hydraulic cylinder 21 moves downward until it contacts the ground. The frame 1 is fixed by setting the first hydraulic cylinder 21 and the second hydraulic cylinder 22 to prevent its movement from affecting the lifting operation. During lifting, a lifting device is installed on the lifting frame 11. The hook 12 can be used to hook the lifting hook 12 to lift the heavy object. Counterweight is required during lifting. During lifting, a plurality of counterweight blocks 18 are sequentially sleeved on the column 17 according to the lifted heavy object. Further, when the heavy object is too heavy, the water in the water tank 4 is transported to the inside of the column 17 through the water pump 31. The inside of the column 17 is hollow, so appropriate water can be transported according to the weight of the heavy object. Counterweighting by water can not only accurately counterweight, but also eliminate the noise generated by the lifting of the counterweight block 18 during counterweight, saving time and effort. A connecting block is fixed to the lower surface of the bottom plate 16, one of the sliding rods 15 is formed with a thread, one of the connecting blocks is screwed to the sliding rod 15, and the other connecting block is sleeved with the sliding rod 15. Both sides of the sliding rod 15 and the bottom plate 16 are sleeved A spring 19 is provided, and a first rotating wheel is installed at one end of a sliding rod 15 with a threaded shape. A motor 20 is fixed on the frame 1, and a second rotating wheel is fixed on the output shaft end of the motor 20. The first rotating wheel and the second rotating wheel are connected by a belt. The motor 20 is started, and the rotation of the motor 20 drives the second rotating wheel to rotate. The first rotating wheel and the second rotating wheel are connected by a belt. The rotation of the second rotating wheel drives the first rotating wheel to rotate. The rotation of the first rotating wheel drives the sliding rod 15 with a threaded shape to rotate. A connecting block is fixed on the lower surface of the bottom plate 16, and a thread is formed on one of the sliding rods 15. One of the connecting blocks is screwed with the sliding rod 15, and the other connecting block is connected with the sleeve of the sliding rod 15, driving the bottom plate 16 to slide horizontally left and right on the sliding rod 15, thereby driving the column 17 and the counterweight block 18 to move horizontally back and forth on the sliding rod 15 Sliding, the lower surface of the bottom plate 16 is in close contact with the roller 14. The purpose of the roller 14 is to reduce the friction force generated by the bottom plate 16 on the slide bar 15 so that the bottom plate 16 can slide smoothly. When the column 17 and the counterweight block 18 slide to the leftmost position, the counterweight reaches the maximum value. When the column 17 and the counterweight block 18 slide to the rightmost position, the counterweight reaches the minimum value. Therefore, it can slide freely according to the lifted weight, thereby achieving the counterweight effect. When the lifting operation is completed, the first hydraulic cylinder 21 rotates counterclockwise to start resetting and leave the ground. At this time, the first hydraulic cylinder 21 drives the slider 24 to slide in the slide groove 25. When the first hydraulic cylinder 21 is reset, the plug 26 is pulled to embed the plug 26 in the slot, thereby fixing the first hydraulic cylinder 21.The first hydraulic cylinder 21 is prevented from shaking after being reset. The present application solves the problem that the existing lifting equipment produces too loud a sound when balancing weights, and cannot accurately balance weights. In addition, the lifting equipment is not stable enough during lifting operations.

[0037] The above embodiments are merely descriptions of preferred implementations of the present invention, and are not intended to limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various modifications and improvements made to the technical solution of the present invention by ordinary personnel in the field should fall within the protection scope of the present invention. The technical contents for which protection is sought in the present invention have all been recorded in the claims.

Claims

1. A weight balancing device capable of accurately balancing weights and eliminating noise during balancing weights, comprising a frame (1), characterized in that: The frame (1) is provided with a supporting device (2), a counterweight device (3), a water tank (4), and a lifting device (5) in sequence from left to right; a cab (6) is installed on the frame (1) and at one end of the lifting device (5); a turntable (7) is rotatably installed on the lower surface of the frame (1); a roller (8) is installed on the lower surface of the turntable (7); a track (9) is provided on the outer cover of the roller (8); the counterweight device (3) is slidably arranged on the frame (1); the counterweight device (3) comprises a frame body (13) fixed on the frame (1); and the frame body (13) is provided with a plurality of rollers (8) in sequence along the length direction of the frame body (13). A plurality of rollers (14), a slide bar (15) is horizontally arranged on the frame (1) and on both sides of the frame body (13), a bottom plate (16) is slidably arranged on the slide bar (15), the lower surface of the bottom plate (16) is in close contact with the rollers (14), a pair of columns (17) is vertically fixed on the bottom plate (16), a plurality of counterweights (18) are sleeved on the columns (17), the interior of the columns (17) is hollow, and the columns (17) and the water tank (4) are connected to each other through a water pipe (10), and the counterweight device (3) and the water tank (4) are connected through a water pipe (10), the water tank (4) is fixed on the frame (1) and the water tank ( 4) is used to provide a water source for the counterweight device (3), the lifting device (5) comprises a lifting frame (11) fixed to the frame (1), a lifting hook (12) is installed on the lifting frame (11), the supporting device (2) comprises a bracket fixed to one end of the frame (1), first hydraulic cylinders (21) are vertically arranged at both ends of the bracket, a second hydraulic cylinder (22) is obliquely arranged inside the bracket, the first hydraulic cylinder (21) and the second hydraulic cylinder (22) are both rotatably mounted on the frame (1), and the output shaft end of the second hydraulic cylinder (22) is hinged to the cylinder wall of the first hydraulic cylinder (21), and the first hydraulic cylinder (21) A universal joint (23) is also installed on the cylinder wall, and a locking mechanism is arranged at the end of the universal joint (23). The locking mechanism is used to fix the universal joint (23) to the frame (1). The locking mechanism comprises a slider (24) fixed to the end of the universal joint (23). A slide groove (25) is provided on the lower surface of the frame (1), and the slider (24) is embedded in the slide groove (25). A plug (26) is inserted into the slider (24), and a return spring is installed on the plug (26). A plurality of slots (32) are provided on the slide groove (25) and along the length direction of the slide groove (25), and the plug (26) is embedded in the slots.

2. A weight balancing device capable of accurate weight balancing and noise elimination according to claim 1, characterized in that: A connecting block is fixed on the lower surface of the base plate (16), one of the sliding rods (15) is formed with a thread, one of the connecting blocks is screwed to the sliding rod (15), and the other connecting block is connected to the sliding rod (15) by plugging, and springs (19) are sleeved on both sides of the sliding rod (15) and located on the base plate (16), and a first rotating wheel is installed at one end of the sliding rod (15) formed with a thread, and a motor (20) is fixed on the frame (1), and a second rotating wheel is fixed to the output shaft end of the motor (20), and the first rotating wheel and the second rotating wheel are connected by a belt.

3. A weight balancing device capable of accurate weight balancing and noise elimination according to claim 1, characterized in that: A water pipe arranging frame (27) is horizontally fixed on the side wall of the frame (1), and an arranging groove (28) is provided on the water pipe arranging frame (27). A plurality of arranging sleeves (29) are installed on the water pipe (10), and a clamping block (30) is fixed on each arranging sleeve (29), and the clamping block (30) is embedded in the arranging groove (28).

4. A weight balancing device capable of accurate weight balancing and noise elimination according to claim 3, characterized in that: A water pump (31) is installed on the top of the water tank (4), and the water pipe (10) is fixedly connected to the water pump (31).

5. A method for manufacturing a balancing weight device according to claim 1 which can accurately balance weight and eliminate noise during balancing weight.

Images