Auxiliary winch self-loading and unloading device

Abstract

The utility model discloses an auxiliary winch self-loading and unloading device which comprises an extending arm, a rotary table, a counter weight, a pull rod, a traction steel wire rope, an auxiliary winch self-disassembling support and a positioning steel wire rope. The auxiliary winch self-loading and unloading device has two states: in the first state, the auxiliary winch is arranged on the ground under the pulley, the auxiliary winch self-unloading support is connected with the rotary table through the pull rod, one end of the traction steel wire rope is connected with the extending arm, and the other end of the traction steel wire rope is connected with the auxiliary winch lifting lug through the pulley; in the second state, the auxiliary winch is located at the rotary table mounting position, the auxiliary winch self-dismounting support is separated from the pull rod and rotates by a proper angle, one end of the positioning steel wire rope is connected with the long cylinder, and the other end of the positioning steel wire rope is connected with the auxiliary winch lifting lug; one end of the traction steel wire rope is connected with the extending arm, and the other end of the traction steel wire rope is connected with the auxiliary winch self-disassembling support. Under the conditions that auxiliary hoisting equipment is not used, and a balance weight does not need to be disassembled, self-assembling and disassembling of the auxiliary winch are achieved.

Description

Technical Field

[0001] The utility model relates to an auxiliary winch self-loading and unloading device, belonging to the technical field of cranes. Background Art

[0002] A crane is a multi-action lifting machine that can achieve vertical lifting or horizontal transport of heavy objects within a certain range. The lifting mechanism includes a main winch and an auxiliary winch. The auxiliary winch is generally an optional mechanism, and whether it needs to be temporarily installed depends on the user's working conditions. Due to the heavy weight of the auxiliary winch, it generally requires the help of auxiliary lifting equipment to complete the installation. This method is costly and inefficient, which seriously affects the improvement of the crane's operating efficiency.

[0003] Chinese patent CN113651250B discloses a self-detachable auxiliary winch crane, in which the auxiliary winch is fixed to the counterweight, and the driving cylinder can drive the counterweight to rise or fall relative to the turntable, so the auxiliary winch will rise or fall with the counterweight until the auxiliary winch moves to the installation position, and the auxiliary winch can be installed without the help of auxiliary lifting equipment;

[0004] This prior art has the following disadvantages:

[0005] 1. This method requires the removal of the counterweight. If the counterweight is difficult to remove, it will seriously affect the crane's operating efficiency;

[0006] 2. High requirements for positioning dimension accuracy. If there is a slight deviation in the dimension, the installation cannot be completed and the adjustment is difficult;

[0007] 3. It is not universal and requires customized design for each lifting equipment. Utility Model Content

[0008] The utility model aims to overcome the deficiencies in the prior art and provide a self-loading and unloading device for an auxiliary winch, which can realize the self-loading and unloading of the auxiliary winch without the aid of auxiliary lifting equipment and without the need to disassemble the counterweight.

[0009] In order to achieve the above purpose, the utility model is implemented by adopting the following technical solutions:

[0010] In a first aspect, the utility model provides a self-loading and unloading device for an auxiliary winch, comprising: an extension arm, a turntable, a counterweight, a pull rod, a traction wire rope, a self-detachable bracket for an auxiliary winch, and a positioning wire rope;

[0011] The boom is rotatably arranged on the turntable, the counterweight is arranged below the turntable, the bottom of the auxiliary winch self-detachable bracket is rotatably connected to the counterweight, a steel pipe and a long cylinder are arranged in parallel on the top of the auxiliary winch self-detachable bracket, and two sets of pulleys are rotatably arranged on the steel pipe;

[0012] The auxiliary winch self-loading and unloading device includes two states:

[0013] In the first state, the auxiliary winch is placed on the ground directly below the pulley, the middle part of the auxiliary winch self-detachable bracket is connected to the turntable through the pull rod, one end of the traction wire rope is connected to the boom, and the other end is connected to the auxiliary winch lifting lug through the pulley;

[0014] In the second state, the auxiliary winch is located at the turntable installation position, the auxiliary winch self-disassembly bracket is separated from the pull rod and rotated to an appropriate angle, one end of the positioning wire rope is connected to the long cylinder, and the other end is connected to the auxiliary winch lifting ear; one end of the traction wire rope is connected to the extension arm, and the other end is connected to the auxiliary winch self-disassembly bracket.

[0015] Furthermore, the auxiliary winch self-detachable bracket is provided with a first hinge point, a second hinge point and a third hinge point in sequence from bottom to top, the first hinge point is rotatably connected to the counterweight via a pin shaft, the second hinge point is connected to the pull rod in the first state, and the third hinge point is connected to the traction wire rope in the second state.

[0016] Furthermore, a limit block is provided on the first hinge point, and when the auxiliary winch self-disassembly bracket rotates to contact with the limit block, the auxiliary winch is exactly located at the turntable installation position.

[0017] Furthermore, the pull rod includes two groups of pull plates, a pin and a positioning hole. The two groups of pull plates are rotatably connected to the turntable and the second hinge point respectively. The two groups of pull plates are rotatably connected through the positioning hole and the pin, and there are multiple positioning holes.

[0018] Furthermore, in the first state, the auxiliary winch self-detachable bracket is tilted so that the auxiliary winch does not collide with the counterweight during vertical lifting.

[0019] Furthermore, the auxiliary winch self-detachable bracket is directly opposite to the turntable and the auxiliary winch installation position, and the distance between the brackets on both sides of the auxiliary winch self-detachable bracket is greater than the length of the auxiliary winch.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] 1. The utility model provides a self-loading and unloading device for an auxiliary winch, which can realize the self-loading and unloading of the auxiliary winch without the aid of auxiliary equipment and without removing the counterweight, thereby effectively improving the working efficiency;

[0022] 2. The utility model provides a self-loading and unloading device for an auxiliary winch, which can be applied to auxiliary winches of different sizes and specifications through the adjustment of the auxiliary winch self-disassembly bracket and the pull rod, and has a certain degree of versatility. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the auxiliary winch self-detaching device (first state) provided in an embodiment of the utility model;

[0024] Figure 2 It is a schematic diagram of the auxiliary winch self-detaching device (second state) provided in an embodiment of the utility model;

[0025] Figure 3 It is a schematic diagram of a self-detachable auxiliary winch bracket provided in an embodiment of the utility model;

[0026] Figure 4 It is a schematic diagram of a pull rod provided in an embodiment of the utility model;

[0027] Figure 5 , Figure 6 , Figure 7 It is a schematic diagram of the movement process of the auxiliary winch self-loading and unloading device provided in an embodiment of the utility model.

[0028] In the figure: 1. boom; 2. turntable; 3. counterweight; 4. pull rod; 5. traction wire rope; 6. self-detachable bracket of auxiliary winch; 7. positioning wire rope; 8. limit block; 9. pulley; 10. steel pipe; 11. long cylinder; 12. third hinge point; 13. second hinge point; 14. first hinge point; 15. positioning hole; 16. pin shaft; 17. pull plate. DETAILED DESCRIPTION

[0029] The utility model is further described below in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and cannot be used to limit the protection scope of the utility model.

[0030] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0031] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0032] Example 1

[0033] This embodiment introduces an auxiliary winch self-loading and unloading device, including: a boom 1, a turntable 2, a counterweight 3, a pull rod 4, a traction wire rope 5, an auxiliary winch self-detaching bracket 6, and a positioning wire rope 7; the boom 1 is rotatably arranged on the turntable 2, the counterweight 3 is arranged below the turntable 2, the bottom of the auxiliary winch self-detaching bracket 6 is rotatably connected to the counterweight 3, the top of the auxiliary winch self-detaching bracket 6 is parallelly arranged with a steel pipe 10 and a long cylinder 11, and two sets of pulleys 9 are rotatably arranged on the steel pipe 10;

[0034] The auxiliary winch self-loading and unloading device includes two states: in the first state ( Figure 1 ), the auxiliary winch is placed on the ground, and it is ensured that the auxiliary winch does not collide with the counterweight 3 during the vertical lifting process; the first hinge point 14 of the auxiliary winch self-detachable bracket 6 is connected to the counterweight 3 through the pin 16, and the second hinge point 13 is connected to the turntable 2 through the pull rod 4, so that the pulley 9 is located directly above the auxiliary winch lifting lug; one end of the traction wire rope 5 is connected to the boom 1, and the other end is connected to the auxiliary winch lifting lug through the pulley 9. In the second state ( Figure 2 ), the auxiliary winch self-detachable bracket 6 rotates to an appropriate angle and contacts the limit block 8 at the first hinge point 14; one end of the positioning wire rope 7 is connected to the long cylinder 11, and the other end is connected to the auxiliary winch lifting ear; one end of the traction wire rope 5 is connected to the extension arm 1, and the other end is connected to the third hinge point 12 of the auxiliary winch self-detachable bracket 6; at this time, the auxiliary winch is exactly located at the installation position of the turntable 2.

[0035] The movement process of the auxiliary winch self-disassembly device is as follows Figure 5 , Figure 6 , Figure 7As shown, when the auxiliary winch self-loading and unloading device is in the first state, the boom 1 performs a luffing and lowering action, and the auxiliary winch is lifted to above the counterweight 3 by the action of the traction wire rope 5, and then the positioning wire rope 7 is respectively connected to the long cylinder 11 of the auxiliary winch self-disassembly bracket 6 and the auxiliary winch lifting ear, and then the boom 1 performs a luffing and starting action, and the connection between the traction wire rope 5 and the auxiliary winch lifting ear is cancelled, and it is connected to the third hinge point 12 of the auxiliary winch self-disassembly bracket 6, and then the boom 1 performs a luffing and lowering action. When the pull rod 4 is not subjected to force, the connection of the pull rod 4 can be cancelled, and the auxiliary winch self-disassembly bracket 6 is pulled to an appropriate position by the action of the traction wire rope 5, and fixed by the limit block 8 at the first hinge point 14. At this time, the auxiliary winch reaches the predetermined installation position, and the installation of the auxiliary winch is completed.

[0036] The pull rod 4 ( Figure 4 ) has an adjustment function, and the length of the pull rod 4 can be adjusted by adjusting the relative positions of the positioning holes 15 of the two pull plates 17. For auxiliary winches of different sizes, the pulley 9 can always be located directly above the auxiliary winch lifting lug.

[0037] The auxiliary winch self-detachable bracket 6 ( Figure 3 ) The relative position of the pulley 9 can be adjusted by replacing the steel pipe 10 of different lengths to achieve the change of the position of the pulley 9, so that the relative position of the two pulleys 9 is always consistent with the position of the auxiliary winch lifting eye.

[0038] The auxiliary winch self-loading and unloading device described in this embodiment can realize the self-loading and unloading of the auxiliary winch without the aid of auxiliary equipment and without removing the counterweight 3, thereby effectively improving the work efficiency; through the adjustment function of the auxiliary winch self-detachable bracket 6 and the pull rod 4, it can be suitable for auxiliary winches of different sizes and specifications, and has a certain degree of versatility.

[0039] In addition, the structure of the auxiliary winch self-detachable bracket 6 in this embodiment can be changed to be fixed on the turntable 2; the positioning wire rope 7 can be replaced by a rigid rod or a sling.

[0040] Among them, the crane is a multi-action lifting machinery that can vertically lift and horizontally move heavy objects within a certain range; the auxiliary winch is the basic mechanism for lifting objects, generally used for lifting objects with a long range and small mass.

[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A secondary winch self-loading and unloading device, characterized in that: include: Boom (1), turntable (2), counterweight (3), pull rod (4), traction wire rope (5), auxiliary winch self-detachable bracket (6), positioning wire rope (7); The boom (1) is rotatably arranged on the turntable (2), the counterweight (3) is arranged below the turntable (2), the bottom of the auxiliary hoisting self-detaching bracket (6) is rotatably connected to the counterweight (3), the top of the auxiliary hoisting self-detaching bracket (6) is parallelly provided with a steel pipe (10) and a long cylinder (11), and two sets of pulleys (9) are rotatably arranged on the steel pipe (10); The auxiliary winch self-loading and unloading device includes two states: In the first state, the auxiliary winch is placed on the ground directly below the pulley (9), the middle part of the auxiliary winch self-detachable bracket (6) is connected to the turntable (2) through the pull rod (4), one end of the traction wire rope (5) is connected to the boom (1), and the other end is connected to the auxiliary winch lifting lug through the pulley (9); In the second state, the auxiliary winch is located at the installation position of the turntable (2), the auxiliary winch self-detachable bracket (6) is separated from the pull rod (4) and rotated to an appropriate angle, one end of the positioning wire rope (7) is connected to the long cylinder (11), and the other end is connected to the auxiliary winch lifting ear; one end of the traction wire rope (5) is connected to the extension arm (1), and the other end is connected to the auxiliary winch self-detachable bracket (6).

2. The auxiliary winch self-loading and unloading device according to claim 1, characterized in that: The auxiliary winch self-detachable bracket (6) is provided with a first hinge point (14), a second hinge point (13) and a third hinge point (12) in sequence from bottom to top, the first hinge point (14) is rotationally connected to the counterweight (3) via a pin shaft (16), the second hinge point (13) is connected to the pull rod (4) in the first state, and the third hinge point (12) is connected to the traction wire rope (5) in the second state.

3. The auxiliary winch self-loading and unloading device according to claim 2, characterized in that: A limit block (8) is provided on the first hinge point (14), and when the auxiliary winch self-disassembly bracket (6) rotates to contact the limit block (8), the auxiliary winch is exactly located at the installation position of the turntable (2).

4. The auxiliary winch self-loading and unloading device according to claim 2, characterized in that: The pull rod (4) includes two groups of pull plates (17), a pin shaft (16) and a positioning hole (15). The two groups of pull plates (17) are rotatably connected to the turntable (2) and the second hinge point (13) respectively. The two groups of pull plates (17) are rotatably connected to each other through the positioning hole (15) and the pin shaft (16). There are multiple positioning holes (15).

5. The auxiliary winch self-loading and unloading device according to claim 1, characterized in that: In the first state, the auxiliary hoisting self-detachable bracket (6) is arranged tilted so that the auxiliary hoisting does not collide with the counterweight (3) during the vertical lifting process.

6. The auxiliary winch self-loading and unloading device according to claim 1, characterized in that: The auxiliary winch self-detachable bracket (6) is directly opposite to the turntable (2) and the auxiliary winch installation position, and the distance between the brackets on both sides of the auxiliary winch self-detachable bracket (6) is greater than the length of the auxiliary winch.

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