Tower type hoisting system for large test component

Abstract

The utility model discloses a tower type hoisting system for a test large component, which comprises a tower frame, a rotating seat, a tower top, a suspension arm, a counterweight arm, a winch and a steel wire rope, and the tower frame is vertically fixed on the ground; the rotating seat is pivotally mounted at the top end of the tower; the tower top is fixedly connected to the top end of the rotating seat; a pulley is arranged at the top end of the tower top; one end of the suspension arm is fixedly connected with the side wall of the rotating seat; one end of the balance weight arm is fixedly connected with the side wall of the rotating seat, the balance weight arm and the suspension arm are oppositely arranged, the balance weight arm is slidably connected with a balance weight box body, and the balance weight box body can reciprocate in the length direction of the balance weight arm; the number of the winches is two, and the two winches are fixed to the two ends of the balance weight box body respectively and symmetrically arranged with the balance weight arm as the center. One end of each steel wire rope is fixedly connected with the winch, the other end of each steel wire rope is wound around the pulley and connected to the suspension arm, and the two steel wire ropes are connected to the same position of the suspension arm. The load from the suspension arm is averagely borne through the two steel wire ropes, and the load of the counterweight arm is kept parallel.

Description

Technical Field

[0001] The utility model relates to the field of cranes, in particular to a tower-type lifting and hoisting system for testing large components. Background Art

[0002] The utility model patent with application number CN201120497151.4 discloses a light tower crane, including a tower body fixed with a base, a boom, a traveling trolley on the boom, a traveling hoist, an electric hoist, and a control device. The tower body is formed by stacking rectangular section boxes by bolts, the section boxes are welded, the section boxes are fixed by bolts through bolt holes, a support platform is fixed on the upper part of the uppermost section box, a slewing bearing is arranged on the platform, and the slewing bearing is connected to the motor through a reduction box. This structure is a conventional structure of an existing tower crane, but the existing tower crane movable counterweight device cannot realize rapid counterweighting, and when the tower crane movable counterweight device performs heavy counterweighting, the stability of the steel wire rope is poor, and it is easy to tip over to one side, resulting in certain safety hazards of the tower crane movable counterweight device. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a test large component tower crane hoisting system, which can enable the counterweight arm to withstand a higher load and adapt to large components with a larger weight.

[0004] According to the first aspect of the utility model, a test large-component tower lifting and hoisting system includes a tower, a rotating seat, a tower top, a boom, a counterweight arm, a winch and a wire rope, wherein the tower is vertically fixed to the ground; the rotating seat is pivotally mounted on the top of the tower; the tower top is fixedly connected to the top of the rotating seat, and a pulley is provided on the top of the tower top; one end of the boom is fixedly connected to the side wall of the rotating seat; one end of the counterweight arm is fixedly connected to the side wall of the rotating seat, the counterweight arm and the boom are arranged opposite to each other, the counterweight arm is slidably connected to a counterweight box, and the The counterweight box can reciprocate along the length direction of the counterweight arm; two winches are provided, and the two winches are respectively fixed at two ends of the counterweight box, and the two winches are symmetrically arranged with the counterweight arm as the center, and the two winches have the same specifications and the same output torque; two steel ropes are provided, and each steel rope corresponds to one of the winches, one end of the steel rope is fixedly connected to the winding roller shaft of the winch, and the other end is wound around the pulley and connected to the boom, and the two steel ropes are connected to the same position of the boom.

[0005] A tower-type hoisting system for testing large components according to an embodiment of the utility model has at least the following beneficial effects:

[0006] 1. By adjusting the position of the counterweight box, the load-bearing capacity of the entire counterweight side can be adjusted;

[0007] 2. The load from the boom is evenly borne by two steel wire ropes, dispersing the load imposed on the boom by large components, so that the counterweight arm can bear a higher load, while keeping the load of the counterweight arm parallel.

[0008] According to some embodiments of the utility model, two pulleys are provided, the two pulleys are arranged side by side and in parallel, and the two pulleys are symmetrically arranged with the counterweight arm as the center.

[0009] According to some embodiments of the utility model, the pulley includes a bracket and a wheel body, the bracket is fixedly connected to the upper end of the tower top, the wheel body is pivotally mounted on the bracket, a limiting shell is provided at the upper end of the bracket, two sides of the limiting shell are respectively fixedly connected to two sides of the bracket and cover the top of the wheel body.

[0010] According to some embodiments of the utility model, the ends of the two steel wire ropes are respectively wound around the ends of the boom from opposite sides of the boom, and the steel wire ropes are wound multiple times to fix the steel wire ropes and the boom in connection.

[0011] According to some embodiments of the utility model, along the first direction, the counterweight arm is provided with a screw rod, and the screw rod can pivot in the counterweight arm, and the end of the counterweight arm is fixedly connected with a drive motor, and the drive motor is fixedly connected to the screw rod and is used to drive the screw rod to pivot; along the first direction, a screw hole is penetrated through the middle part of the counterweight box body, and the screw hole is sleeved on the screw rod and cooperates with the screw rod in transmission, wherein the first direction and the moving direction of the counterweight box body are collinear.

[0012] According to some embodiments of the utility model, along the first direction, the counterweight arm is provided with a slide groove, the bottom of the counterweight box is provided with a slider, the slider is embedded in the slide groove and can slide along the slide groove, the screw rod is built into the slide groove, and the screw hole passes through the slider.

[0013] According to some embodiments of the present invention, a control room is provided on the upper half of the tower.

[0014] According to some embodiments of the utility model, the boom is provided with a load-bearing area, the load-bearing area is connected to a hanging structure for hanging heavy objects, the load-bearing area is provided with an electronic scale, the electronic scale is used to measure the weight of the hanging structure, the control room is built-in with a display screen, the display screen and the electronic scale are electrically connected to display the measurement data of the electronic scale.

[0015] According to some embodiments of the utility model, a central processing unit and an alarm are further included. The central processing unit is electrically connected to the electronic scale to receive measurement data from the electronic scale; the central processing unit is electrically connected to the alarm to control the start and stop of the alarm.

[0016] According to some embodiments of the utility model, a support base is fixedly connected to the bottom of the tower, the support base is fixed to the bottom surface, and the bottom surface area of ​​the support base is larger than the bottom end area of ​​the tower, and a plurality of inclined support rods are fixedly connected between the support base and the tower.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0019] Figure 1 A schematic diagram of a test large component tower hoisting system according to an embodiment of the utility model;

[0020] Figure 2 It is a schematic diagram of the coordination of a counterweight arm, a steel wire rope and a tower top of a test large component tower crane hoisting system according to an embodiment of the utility model;

[0021] Figure 3 A schematic diagram of a counterweight box for a test large component tower crane hoisting system according to an embodiment of the utility model

[0022] Figure 4 The present invention is a schematic diagram of a boom and a steel wire rope of a test large-component tower crane hoisting system according to an embodiment of the present invention.

[0023] 100, tower; 110, control room; 120, support base; 121, oblique support rod;

[0024] 200, rotating seat;

[0025] 300, tower top; 310, pulley; 311, bracket; 312, wheel body; 313, limit housing;

[0026] 400, boom; 410, load-bearing area; 420, hanging structure;

[0027] 500, counterweight arm; 510, counterweight box; 511, slider; 512, screw hole; 520, slide slot; 521, screw rod; 522, drive motor;

[0028] 600, winch;

[0029] 700, wire rope; DETAILED DESCRIPTION

[0030] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0031] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply 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 invention.

[0032] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0033] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0034] Reference Figure 1A test large component tower lifting and hoisting system according to an embodiment of the utility model comprises a tower 100, a rotating seat 200, a tower top 300, a boom 400, a counterweight arm 500, a winch 600 and a wire rope 700. The tower 100 is vertically fixed to the ground; the rotating seat 200 is pivotally mounted on the top of the tower 100; the tower top 300 is fixedly connected to the top of the rotating seat 200, and a pulley 310 is arranged on the top of the tower top 300; one end of the boom 400 is fixedly connected to the side wall of the rotating seat 200; one end of the counterweight arm 500 is fixedly connected to the side wall of the rotating seat 200, the counterweight arm 500 and the boom 400 are arranged opposite to each other, and the counterweight arm 500 is slidably connected to the top of the tower 100. It is connected to a counterweight box 510, which can move back and forth along the length direction of the counterweight arm 500; two winches 600 are provided, and the two winches 600 are respectively fixed at the two ends of the counterweight box 510, and the two winches 600 are symmetrically arranged with the counterweight arm 500 as the center, and the two winches 600 have the same specifications and the same output torque; two steel wire ropes 700 are provided, and each steel wire rope 700 corresponds to a winch 600, one end of the steel wire rope 700 is fixedly connected to the winding roller shaft of the winch 600, and the other end is wound around the pulley 310 and connected to the boom 400, and the two steel wire ropes 700 are connected to the same position of the boom 400.

[0035] In actual use, according to the weight to be hung, the counterweight box 510 is first moved to an approximate position, and then the weight is hoisted by the boom 400. After the weight is hoisted, the counterweight box 510 is slid to adjust the specific position of the counterweight box 510 on the counterweight arm 500. At the same time, the two winches 600 are used to synchronously pull or release the wire rope 700 to make the boom 400 swing up or down, so that the counterweight side and the load-bearing side remain parallel. In the above adjustment process, a test large component tower hoisting system of the utility model embodiment has at least the following effects:

[0036] By adjusting the position of the counterweight box 510, the load-bearing capacity of the entire counterweight side can be adjusted to improve the adaptation range of the load-bearing force;

[0037] The load from the boom 400 is evenly borne by the two steel wire ropes 700 , and the load applied to the boom 400 by the large component is dispersed, so that the counterweight arm 500 can bear a higher load, and at the same time, the load of the counterweight arm 500 can be kept parallel.

[0038] Preferably, in order to further promote the balance of force on the two steel wire ropes 700 and make the reaction forces on the two winches 600 tend to be consistent, refer to Figure 4 The ends of the two steel wire ropes 700 are respectively wound around the ends of the boom 400 from opposite sides of the boom 400, and the steel wire ropes 700 are wound multiple times to fix the steel wire ropes 700 and the boom 400. Specifically, refer to Figure 1The boom 400 is provided with a load-bearing area 410, and the load-bearing area 410 is connected to a hanging structure 420 for hanging heavy objects, and the hanging structure 420 is used to hang the above-mentioned heavy objects.

[0039] In some embodiments, reference Figure 2 The pulley 310 is provided with two pulleys 310, which are arranged side by side and in parallel, and the two pulleys 310 are symmetrically arranged with the counterweight arm 500 as the center. Specifically, each steel wire rope 700 is respectively mounted on a pulley 310, so that there is no interference between the steel wire ropes 700. At the same time, a "fixed pulley 310 structure" is formed between the pulley 310 and the steel wire rope 700, and the extension direction of the steel wire rope 700 is adjusted, so that the steel wire rope 700 extends to the boom 400 and can be fixedly connected to the boom 400. In addition, the rolling friction between the pulley 310 and the steel wire rope 700 has a very small friction force, which greatly improves the flexibility of the steel wire rope 700.

[0040] Further, refer to Figure 1 The pulley 310 includes a bracket 311 and a wheel body 312. The bracket 311 is fixedly connected to the upper end of the tower top 300. The wheel body 312 is pivotally mounted on the bracket 311. A limit housing 313 is provided on the upper end of the bracket 311. Both sides of the limit housing 313 are respectively fixedly connected to both sides of the bracket 311 and cover the upper part of the wheel body 312. The limit housing 313 is used to limit the moving area of ​​the wire rope 700 to prevent the wire rope 700 from escaping from the wheel body 312.

[0041] In some embodiments, reference Figure 2 and Figure 3Along the first direction, the counterweight arm 500 is provided with a screw rod 521, and the screw rod 521 can pivot in the counterweight arm 500. The end of the counterweight arm 500 is fixedly connected with a drive motor 522. The drive motor 522 is fixedly connected to the screw rod 521 and is used to drive the screw rod 521 to pivot; along the first direction, a screw hole 512 is penetrated through the middle part of the counterweight box 510, and the screw hole 512 is sleeved on the screw rod 521 and cooperates with the screw rod 521 for transmission, wherein the first direction and the moving direction of the counterweight box 510 are colinear. The screw rod 521 is driven to pivot by the driving motor 522. During the pivoting of the screw rod 521, the counterweight box 510 can be moved in the first direction. Specifically, by controlling the rotation direction of the screw rod 521, the counterweight box 510 can be moved away from or close to one side of the boom 400. Further, along the first direction, the counterweight arm 500 is provided with a slide groove 520, and a slider 511 is provided at the bottom of the counterweight box 510. The slider 511 is embedded in the slide groove 520 and can slide along the slide groove 520. The screw rod 521 is built into the slide groove 520, and the screw hole 512 passes through the slider 511. The sliding fit between the slide groove 520 and the slider 511 is used to constrain the movement path of the entire counterweight box 510, so that the counterweight box 510 can and can only travel back and forth along the first direction.

[0042] In some embodiments, the entire lifting and hoisting system needs to be operated manually, so a control room 110 is provided on the upper half of the tower 100, and further, an electronic scale (not shown in the figure) is provided in the load-bearing area 410, and the electronic scale is used to measure the weight of the hanging structure 420. The control room 110 is built with a display screen (not shown in the figure), and the display screen and the electronic scale are electrically connected to display the measurement data of the electronic scale. It is convenient for users to understand the current load in real time. At the same time, the above-mentioned drive motor 522 can also be controlled by the control circuit built in the control room 110, which also includes a central processing unit (not shown in the figure) and an alarm (not shown in the figure). The central processing unit is electrically connected to the electronic scale to receive the measurement data from the electronic scale; the central processing unit and the alarm are electrically connected to control the start and stop of the alarm. When the load exceeds the limit built in the central processing unit, the alarm can be controlled by the central processing unit to prompt the user, warning the user to perform emergency braking on the entire tower lifting and hoisting system in time.

[0043] In order to further improve the structural stability of the entire tower crane hoisting system, refer to Figure 1 The bottom of the tower 100 is fixedly connected with a support base 120, the support base 120 is fixed to the bottom surface, and the bottom surface area of ​​the support base 120 is larger than the bottom end area of ​​the tower 100, and a plurality of inclined support rods 121 are fixedly connected between the support base 120 and the tower 100.

[0044] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A tower crane hoisting system for testing large components, characterized in that: include: A tower (100) is vertically fixed to the ground; A rotating seat (200) is pivotally mounted on the top of the tower (100); A tower top (300) is fixedly connected to the top of the rotating seat (200), and a pulley (310) is provided at the top of the tower top (300); A suspension arm (400), one end of which is fixedly connected to a side wall of the rotating seat (200); A counterweight arm (500), one end of which is fixedly connected to the side wall of the rotating seat (200), the counterweight arm (500) and the suspension arm (400) are arranged opposite to each other, the counterweight arm (500) is slidably connected to a counterweight box (510), and the counterweight box (510) can reciprocate along the length direction of the counterweight arm (500); Two winches (600) are provided, the two winches (600) are respectively fixed at two ends of the counterweight box (510), the two winches (600) are symmetrically arranged with the counterweight arm (500) as the center, and the two winches (600) have the same specifications and the same output torque; Two steel wire ropes (700) are provided, each of the steel wire ropes (700) corresponds to one of the hoists (600), one end of the steel wire rope (700) is fixedly connected to the winding roller of the hoist (600), and the other end is wound around the pulley (310) and connected to the boom (400), and the two steel wire ropes (700) are connected to the same position of the boom (400).

2. A tower crane hoisting system for testing large components according to claim 1, characterized in that: Two pulleys (310) are provided, and the two pulleys (310) are arranged side by side and in parallel. The two pulleys (310) are symmetrically arranged with the counterweight arm (500) as the center.

3. A tower crane hoisting system for testing large components according to claim 1 or 2, characterized in that: The pulley (310) comprises a bracket (311) and a wheel body (312); the bracket (311) is fixedly connected to the upper end of the tower top (300); the wheel body (312) is pivotally mounted on the bracket (311); a limiting housing (313) is provided at the upper end of the bracket (311); two sides of the limiting housing (313) are respectively fixedly connected to two sides of the bracket (311) and cover the upper part of the wheel body (312).

4. A tower crane hoisting system for testing large components according to claim 1, characterized in that: The ends of the two steel wire ropes (700) are respectively wound around the ends of the boom (400) from opposite sides of the boom (400), and the steel wire ropes (700) are wound multiple times to fix the steel wire ropes (700) and the boom (400) in connection.

5. A tower crane hoisting system for testing large components according to claim 1, characterized in that: Along the first direction, the counterweight arm (500) is provided with a screw rod (521), and the screw rod (521) can pivot in the counterweight arm (500), and the end of the counterweight arm (500) is fixedly connected with a driving motor (522), and the driving motor (522) and the screw rod (521) are fixedly connected and used to drive the screw rod (521) to pivot; along the first direction, a screw hole (512) is penetrated through the middle of the counterweight box (510), and the screw hole (512) is sleeved on the screw rod (521) and cooperates with the screw rod (521) in transmission, wherein the first direction and the moving direction of the counterweight box (510) are collinear.

6. A tower crane hoisting system for testing large components according to claim 5, characterized in that: Along the first direction, the counterweight arm (500) is provided with a slide groove (520), and the bottom of the counterweight box (510) is provided with a slider (511), the slider (511) is embedded in the slide groove (520) and can slide along the slide groove (520), the screw rod (521) is built into the slide groove (520), and the screw hole (512) passes through the slider (511).

7. A tower crane hoisting system for testing large components according to claim 1, characterized in that: A control room (110) is provided on the upper half of the tower (100).

8. A tower crane hoisting system for testing large components according to claim 7, characterized in that: The boom (400) is provided with a load-bearing area (410), the load-bearing area (410) is connected to a hanging structure (420) for hanging heavy objects, the load-bearing area (410) is provided with an electronic scale, the electronic scale is used to measure the weight of the hanging structure (420), and the control room (110) is built with a display screen, the display screen and the electronic scale are electrically connected to display the measurement data of the electronic scale.

9. A tower crane hoisting system for testing large components according to claim 8, characterized in that: It also includes a central processor and an alarm. The central processor is electrically connected to the electronic scale to receive measurement data from the electronic scale; the central processor is electrically connected to the alarm to control the start and stop of the alarm.

10. A tower crane hoisting system for testing large components according to claim 1, characterized in that: A support base (120) is fixedly connected to the bottom of the tower (100); the support base (120) is fixed to the bottom surface, and the bottom surface area of ​​the support base (120) is larger than the bottom end area of ​​the tower (100); and a plurality of oblique support rods (121) are fixedly connected between the support base (120) and the tower (100).

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