Single-wheel pulley counterweight device

Abstract

The utility model discloses a single-wheel pulley counterweight device which comprises a rope sleeve structure, a pulley structure and a counterweight device, wherein the rope sleeve structure is connected with a hoisted object during use; the counterweight structure is used for providing vertically downward gravity, and the rope sleeve structure is connected with the counterweight structure through the pulley structure and the connecting structure in a rolling adjusting manner. When the main arm suddenly swings to pull a hoisted object due to a strong wind load, the counterweight structure and the rope sleeve structure perform rolling displacement by combining the pulley structure and the connecting structure as a basis under the action of the gravity of the counterweight structure, so that the counterweight structure is always in a vertical state for counterweight, and the stability of a counterweight system is ensured; the problem that a counterweight system is unstable due to the fact that a cable rope connected with a cable rope counterweight of a hoisted object is in an inclined state is solved.

Description

Technical Field

[0001] The utility model relates to a single-wheel pulley counterweight device, belonging to the technical field of counterweights. Background Art

[0002] When hoisting large components in wind power, large cranes are often used. When hoisting and installing hoisted objects, the main arm of the crane is subjected to large wind loads, which will cause corresponding shaking. In order to stabilize the hoisting process, a cable wind device with a counterweight needs to be installed to stabilize the hoisted objects.

[0003] The existing counterweights are mostly connected by directly binding and fixing the cable wind rope and the cable wind rope counterweight (see Chinese patent publication number CN216515161U). Although the cable wind rope counterweight can counterweight the hoisted object through the cable wind rope, when the main arm 51 of the crane is suddenly swung by the strong wind load, the cable wind rope 53 connecting the hoisted object 52 to the cable wind rope counterweight 34 will be tilted, resulting in instability of the counterweight system. Figure 4 shown. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a single-wheel pulley counterweight device.

[0005] The utility model is realized through the following technical solutions.

[0006] The utility model provides a single-wheel pulley counterweight device, comprising:

[0007] A rope loop structure used to connect with the hoisted object when in use;

[0008] A counterweight structure is provided for providing vertical downward gravity, and the rope loop structure is connected to the counterweight structure in a rolling and adjustable manner through a pulley structure and a connecting structure.

[0009] The pulley structure comprises a pulley frame with a space in the middle;

[0010] A pulley is rotatably mounted in the spacing space of the pulley frame via a rotating shaft, and connecting steel plates are mounted above and below the pulley. The connecting steel plates limit the rolling matching space between the steel wire rope and the pulley.

[0011] A long strip is fixedly installed on the outer side of the pulley frame for reinforcement.

[0012] The two ends of the rotating shaft are limited by limit blocks outside the long strip.

[0013] The connection structure includes a U-shaped end plate connected to the bottom of the pulley frame through a pin shaft, a U-shaped connecting buckle is fixedly connected to the bottom of the U-shaped end plate, an O-shaped block is hooked and installed on the U-shaped connecting buckle, and the bottom of the O-shaped block is used to hook the shackle of the counterweight structure.

[0014] Baffles are provided at both ends of the pin shaft for limiting.

[0015] The counterweight structure comprises a shackle hooked with the bottom of the O-shaped block, the shackle is connected with a triangular plate through a shackle pin, and the triangular plate is fixedly connected with the counterweight body.

[0016] The rope loop structure includes a steel wire rope that is inserted from the pulley frame and can roll with the pulley. The two ends of the steel wire rope are bent and clamped by clamping pieces to form a rope loop. The rope loop is used to be put on the connection part of the hoisted object.

[0017] The beneficial effect of the utility model is that when the main arm is suddenly swung by a strong wind load to pull the hoisted object, the counterweight structure, under the action of its own gravity, combines with the pulley structure and the connecting structure as the basis and the rope loop structure to perform rolling displacement, ensuring that the counterweight structure is always in a vertical state for counterweighting to ensure the stability of the counterweight system, thus solving the problem that the cable wind rope connecting the hoisted object to the cable wind rope counterweight will be in an inclined state, resulting in an unstable counterweight system. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a main schematic diagram of the utility model;

[0019] Figure 2 It is a side view schematic diagram of the pulley structure and the connection structure of the utility model;

[0020] Figure 3 It is a schematic diagram of the utility model in use;

[0021] Figure 4 It is a schematic diagram of the use status of the prior art;

[0022] In the figure: 1- pulley structure; 12- connecting steel plate; 13- long strip plate; 14- pulley frame; 15- pulley; 16- rotating shaft; 17- limit block;

[0023] 2-connection structure; 21-U-shaped end plate; 22-pin shaft; 23-baffle; 24-U-shaped connecting buckle; 25-O-shaped block;

[0024] 3-counterweight structure; 31-shackle; 32-shackle pin; 33-triangular plate; 34-counterweight body;

[0025] 4-rope loop structure; 41-rope loop; 51-main arm; 52-clamping piece; 43-wire rope; 51-main arm; 52-hoisting object; 53-guy rope. DETAILED DESCRIPTION

[0026] The technical solution of the utility model is further described below, but the scope of protection required is not limited to the description.

[0027] like Figures 1 to 3 shown.

[0028] A single-wheel pulley counterweight device of the present application comprises:

[0029] The loop structure 4 connected to the hoisting object 52 is connected to the counterweight structure 3 through the pulley structure 1 and the connecting structure 2 so as to be rollable and adjustable.

[0030] The hoisted object 52 on the main arm 51 is connected to the rope loop structure 4, and the counterweight structure 3 at the bottom of the rope loop structure 4 can roll through the pulley structure 1 and the connecting structure 2. When the main arm 51 is suddenly swung by a strong wind load and pulls the hoisted object 52, the counterweight structure 3 rolls and displaces with the rope loop structure 4 under the action of its own gravity in combination with the pulley structure 1 and the connecting structure 2 as the basis, ensuring that the counterweight structure 3 is always in a vertical state for counterweighting to ensure the stability of the counterweight system, thereby solving the problem that the cable wind rope connecting the hoisted object to the cable wind rope counterweight may be tilted, resulting in instability of the counterweight system.

[0031] The pulley structure 1 comprises a pulley frame 14 with a space in the middle, and a long strip 13 is fixedly installed on the outer side of the pulley frame 14 for reinforcement;

[0032] A pulley 15 is rotatably mounted in the space between the pulley frames 14 through a rotating shaft 16, and a connecting steel plate 12 is installed above and below the pulley 15. The connecting steel plate 12 limits the rolling matching space between the steel wire rope 43 and the pulley 15. The rotating shaft 16 has limit blocks 17 at both ends to limit the position outside the long strip 13.

[0033] The connecting structure 2 includes a U-shaped end plate 21 connected to the bottom of the pulley frame 14 through a pin shaft 22, a U-shaped connecting buckle 24 is welded and fixedly connected to the bottom of the U-shaped end plate 21, an O-shaped block 25 is hooked and installed on the U-shaped connecting buckle 24, and the bottom of the O-shaped block 25 is used to hook the shackle 31 of the counterweight structure 3; baffles 23 are provided at both ends of the pin shaft 22 for limiting.

[0034] The counterweight structure 3 includes a shackle 31 hooked with the bottom of the O-shaped block 25 . The shackle 31 is connected to a triangular plate 33 via a shackle pin 32 . The triangular plate 33 is fixedly connected to the counterweight body 34 .

[0035] The rope loop structure 4 includes a steel wire rope 43 that is inserted from the pulley frame 14 and can roll with the pulley 15. The two ends of the steel wire rope 43 are bent and clamped by a clamping member 42 to form a rope loop 41. The rope loop 41 is used to be put on the connection part of the hoisting object 52.

[0036] The counterweight body 34 is pulled vertically downward through the triangular plate 33, the shackle pin 32, the shackle 31, the U-shaped end plate 21 and the pulley frame 14, and the wire rope 43 of the rope loop structure 4 is inserted into the pulley frame 14 at intervals and rollably cooperates with the pulley 15, thereby realizing a rolling and adjustable connection between the rope loop structure 4 and the counterweight structure 3 through the pulley structure 1 and the connecting structure 2.

[0037] When in use, the steel wire rope 43 passes through the pulley frame 14 and can roll with the pulley 15, and the two ends of the steel wire rope 43 are then passed through the preset installation holes of the hoisting object 52, and the two ends of the steel wire rope 43 are bent in the opposite direction, such as Figure 4 The dotted path of the middle steel wire rope 43 is used to tighten the bent part of the steel wire rope 43 with the clamping piece 42 to form a rope loop 41. The produced rope loop 41 is wrapped around the connection point of the hoisting object 52, so that the steel wire rope 43 connected to the hoisting object 52 can roll with the counterweight 34 through the pulley 15, thereby improving stability and safety.

[0038] When the counterweight body 34 of the present application is placed on the ground or on a work platform, the main arm 51 and the hoisted object 52 can be statically counterweighted through the rolling cooperation of the wire rope 43 and the pulley 15; when the counterweight body 34 is hoisted to mid-air through the main arm 51 of the crane, it can be rolled with the wire rope 43 and the pulley 15. The counterweight body 34 can be based on the vertical downward gravity, and the rolling position is adjusted through the pulley 15 and the wire rope 43 to meet the overall counterweight requirements for resisting strong wind loads.

Claims

1. A single-wheel pulley counterweight device, characterized in that: include: A rope loop structure (4) for connecting with a hoisting object (52) when in use; A counterweight structure (3) is provided for providing vertical downward gravity, and a rope loop structure (4) is connected to the counterweight structure (3) in a rollable and adjustable manner via a pulley structure (1) and a connecting structure (2); The pulley structure (1) comprises a pulley frame (14) with a space in the middle; A pulley (15) is rotatably mounted in the spacing space of the pulley frame (14) via a rotating shaft (16), and a connecting steel plate (12) is mounted on the pulley frame (14) above and below the pulley (15), and the connecting steel plate (12) limits the rolling matching space between the steel wire rope (43) and the pulley (15).

2. The single-wheel pulley counterweight device according to claim 1, characterized in that: A long strip plate (13) is fixedly mounted on the outside of the pulley frame (14) for reinforcement.

3. The single-wheel pulley counterweight device according to claim 1, characterized in that: The rotating shaft (16) is provided with limit blocks (17) at both ends to limit the position outside the long strip plate (13).

4. The single-wheel pulley counterweight device according to claim 1, characterized in that: The connection structure (2) comprises a U-shaped end plate (21) connected to the bottom of the pulley frame (14) via a pin shaft (22); a U-shaped connection buckle (24) is fixedly connected to the bottom of the U-shaped end plate (21); an O-shaped block (25) is hooked and installed on the U-shaped connection buckle (24); and the bottom of the O-shaped block (25) is used to hook a shackle (31) of the counterweight structure (3).

5. The single-wheel pulley counterweight device according to claim 4, characterized in that: Baffles (23) are provided at both ends of the pin shaft (22) for limiting the position.

6. The single-wheel pulley counterweight device according to claim 1, characterized in that: The counterweight structure (3) comprises a shackle (31) hooked on the bottom of the O-shaped block (25); the shackle (31) is connected to a triangular plate (33) via a shackle pin (32); and the triangular plate (33) is fixedly connected to the counterweight body (34).

7. The single-wheel pulley counterweight device according to claim 1, characterized in that: The rope loop structure (4) comprises a steel wire rope (43) which is inserted from the pulley frame (14) at intervals and can be rolled with the pulley (15). The two ends of the steel wire rope (43) are bent and clamped by clamping members (42) to form a rope loop (41). The rope loop (41) is used to be sleeved on the connection part of the hoisting object (52).

Images