An adjustable counterweight hanging device for construction and its control method

Abstract

A counterweight adjustable hanging device for construction and a control method. The hanging device includes a support frame and a control operation unit. A support arm is rotatably installed on the support frame. The support arm includes a counterweight support arm and a hoisting support arm. A hoisting unit is slidably arranged on the hoisting support arm; a counterweight unit with adjustable weight is slidably arranged on the counterweight support arm; the control operation unit includes a gravity sensor, a travel sensor and a controller. The gravity sensor is installed on the hoisting unit, the travel sensor is arranged on the hoisting support arm, and the controller is electrically connected to the gravity sensor and the travel sensor respectively, and also controls the rotation of the support arm, the action of the hoisting unit and the weight adjustment process of the counterweight unit. The present invention can always ensure the moment balance of the hoisted object, avoid the instability of the support frame caused by the moment imbalance of the support frame, can increase the mass of the hoisted object and improve the hoisting capacity.

Description

Technical Field

[0001] The present invention relates to a hanging device for construction, in particular to a hanging device with adjustable counterweight for construction and a control method thereof. Background Art

[0002] As is well known, prefabricated building refers to a construction method in which some or all components of a building are produced in a component prefabrication factory and then transported to the construction site by corresponding transportation means, and the components are assembled by reliable installation methods and installation machinery to form a building with usable functions. Compared with on-site construction, prefabricated construction has the advantages of convenient construction, fast project progress, little impact on the surrounding environment, and easy guarantee of the quality of building components. When carrying out assembly building construction, only the corresponding prefabricated parts need to be hoisted to the appropriate building positions for rapid construction.

[0003] At present, equipment such as tower cranes used for hoisting usually directly hang by means of a boom equipped with a hook and a sling. Although it is equipped with a counterweight boom and counterweights, affected by the fixed counterweight, the moving space is limited after hoisting, and due to the different weights of the lifted objects, it is difficult to determine the stroke limit of the lifting tool in real time. During the hoisting process, it is also very easy for the support frame to tilt due to the imbalance of the counterweight moment, posing a great potential safety hazard. Summary of the Invention

[0004] In order to overcome the above deficiencies of the related art, the present invention provides a hanging device with adjustable counterweight for construction and a control method thereof, which can always ensure the moment balance of the lifted object, avoid the instability of the support frame caused by the moment imbalance of the support frame, and can increase the mass of the lifted object and improve the lifting capacity.

[0005] A technical solution adopted by the present invention to solve its technical problems is:

[0006] A hanging device with adjustable counterweight for construction includes a support frame, the top end of a support arm is rotatably installed on the support frame, the support arm includes a counterweight support arm and a hoisting support arm respectively located on both sides of the support frame, a hoisting unit is slidably arranged on the hoisting support arm for hoisting a lifted object; a counterweight unit with adjustable weight is slidably arranged on the counterweight support arm for balancing the torque of the lifted object by gravity.

[0007] The hanging device with adjustable counterweight for construction further includes a control operation unit, which further includes a gravity sensor, a stroke sensor and a controller. Among them, the gravity sensor is installed on the hoisting unit for sensing the gravity of the lifted object, the stroke sensor is arranged on the hoisting support arm for sensing the moving distance of the hoisting unit, and the controller is electrically connected to the gravity sensor and the stroke sensor respectively, and also controls the rotation of the support arm, the movement of the hoisting unit and the weight adjustment process of the counterweight unit.

[0008] By using the control operation unit, the moment balance of the lifted object is achieved through the sliding of the weight-adjustable counterweight unit, which can always ensure the moment balance of the lifted object, avoid the instability of the support frame caused by the moment imbalance of the support frame, increase the mass of the lifted object, and improve the lifting capacity.

[0009] Another technical solution adopted by the present invention to solve its technical problems is:

[0010] A counterweight control method for a hanging device, comprising the following steps:

[0011] S1. Operate the lifting unit to lift the lifted object, and the gravity sensor senses the gravity of the lifted object as F i ;

[0012] S2. The lifting unit moves on the lifting support arm, and the travel sensor senses the moment radius of the lifting unit as L 1i ;

[0013] S3. Adjust the gravity of the counterweight unit;

[0014] S4. Calculate the counterweight moment radius wherein, M1 is the moment of the lifting support arm, M2 is the moment of the counterweight support arm, and F0 is the gravity of the counterweight unit

[0015] Control the counterweight unit to slide on the counterweight support arm so that the counterweight unit moment radius is L 2i .

[0016] In this technical solution, the moment of the lifted object is monitored in real time through the gravity sensor and the travel sensor, and then the controller is used to adjust the counterweight on the counterweight support arm to balance the moment of the lifted object, achieving the moment balance of the support frame and making the support frame always stable during construction. On this basis, the mass of the lifted object can be further increased to improve the lifting capacity. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the drawings and embodiments.

[0018] Figure 1 is a schematic structural diagram of a hanging device according to an embodiment of the present invention.

[0019] Figure 2 is a front view of a counterweight unit in an embodiment of the present invention.

[0020] Figure 3 is a top view of a counterweight unit in an embodiment of the present invention.

[0021] Figure 4 is Figure 3 a cross-sectional view taken along line C-C in

[0022] Figure 5 is Figure 4 The enlarged view of the structure at position A in

[0023] Figure 6 is Figure 4 The enlarged view of the structure at position B in

[0024] Figure 7 is the flowchart of the control method of an embodiment of the present invention.

[0025] Figure 8 is the flowchart of step 3 in the control method of an embodiment of the present invention.

[0026] Explanation of the reference numerals in the figure:

[0027] 1. Support frame, 11. Support arm, 111. Counterweight support arm, 112. Hoisting support arm;

[0028] 2. Hoisting unit;

[0029] 3. Counterweight unit, 31. Track, 32. Counterweight fixed base, 321. Inner cavity, 33. Fixed counterweight block, 331. First embedded hole, 3311. First internal threaded pipe, 34. Movable counterweight block, 341. Second embedded hole, 3411. Second internal threaded pipe, 35. Counterweight adjustment component, 351. Rotating rod, 352. Rotating screw sleeve, 353. Rotating driving part, 3531. Motor, 3532. Driving pulley, 3533. Driven pulley, 354. Driven screw, 3541. Third embedded hole, 355. Transmission structure, 3551. Screw end sleeve, 3552. Embedded groove. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] Figures 1 to 6The figure shows a structural schematic diagram of a preferred embodiment of the present invention. A weight-adjustable hanging device for construction includes a support frame 1 and a control operation unit. Among them, a support arm 11 is rotatably installed at the top of the support frame 1. The support arm 11 includes a counterweight support arm 111 and a hoisting support arm 112 respectively arranged on both sides of the support frame 1. A hoisting unit 2 is slidably arranged on the hoisting support arm 112 for hoisting a hoisted object; a weight unit 3 with adjustable weight is slidably arranged on the counterweight support arm 111 for balancing the torque of the hoisted object by gravity;

[0032] The control operation unit includes a gravity sensor, a stroke sensor and a controller. The gravity sensor is installed on the hoisting unit 2 for sensing the gravity of the hoisted object; the stroke sensor is arranged on the hoisting support arm 112 for sensing the moving distance of the hoisting unit 2; the controller is electrically connected to the gravity sensor and the stroke sensor respectively, and also controls the rotation of the support arm 11, the movement of the hoisting unit 2 and the weight adjustment process of the weight unit 3. Among them, the controller can be obtained by those skilled in the art based on the prior art. The gravity sensor and the stroke sensor themselves are also prior art and are not improvement points, so they will not be elaborated here specifically.

[0033] In specific implementation, the above-mentioned controller is electrically connected or wirelessly connected to the gravity sensor, the weight driving part, the direction driving part, the hoisting driving part and the rotation driving part 353. The controller controls the hoisting driving part to drive the hoisting unit 2 to move on the hoisting support arm 112. The hoisting unit 2 hoists the hoisted object, and the gravity sensor senses the gravity of the hoisted object as F i , the controller controls the hoisting driving part to drive the hoisting unit 2 to move on the hoisting support arm 112, and the stroke sensor senses the moment arm radius of the hoisting unit 2 as L 1i , and the controller calculates the counterweight moment arm Among them, M1 is the moment of the hoisting support arm 112, M2 is the moment of the counterweight support arm 111, F0 is the gravity of the weight unit 3, and the controller controls the weight driving part to drive the weight unit 3 to slide on the counterweight support arm 111 so that the moment arm radius of the weight unit 3 is L 2i . By sliding the weight unit 3 to balance the moment of the hoisted object, the moment balance of the hoisted object can be ensured at all times, avoiding the instability of the support frame 1 caused by the moment imbalance of the support frame 1, increasing the mass of the hoisted object, and improving the hoisting capacity.

[0034] The above-mentioned support frame can be a steel framework, mainly used for support and installation. The support frame 1 can be fixed on the ground or on a building. The structure of the support frame 1 can be selected in any form of the prior art, and will not be elaborated here specifically.

[0035] The rotation plane of the above-mentioned support arm 11 can be perpendicular to the support frame 1. Of course, other connection angles are not excluded. The support arm 11 can be connected to the support frame 1 by a cable, thereby forming a triangular support structure, which increases the stability of the connection of the support arm 11. The rotation of the support arm 11 can be specifically driven by a direction driving member. The direction driving member is installed on the support frame 1 and connected to the support arm 11, and can be selected from the prior art, and will not be elaborated here specifically.

[0036] The above-mentioned counterweight support wall and the hoisting support wall can be arranged in a straight line. The counterweight support wall and the hoisting support wall can be steel frame structures. This part is prior art and will not be elaborated here specifically.

[0037] On the above-mentioned hoisting unit 2, a hook can be provided and a hook driving member can be provided. The hook driving member is used to drive the hook to lift and lower, so as to hoist the hoisted object, thereby adjusting the height of the hoisted object to meet the hoisting of the hoisted object. The specific structure of the hoisting unit 2 is prior art and will not be elaborated here specifically. Among them, the hoisting driving member is connected to the hoisting unit 2 and is used to drive the hoisting unit 2 to slide on the hoisting support wall, thereby changing the sliding radius of the hoisting unit 2. The specific structure of the hoisting driving member is prior art and will not be elaborated here specifically.

[0038] In a specific embodiment of the present invention, a counterweight driving member is provided on the counterweight support arm 111, which is connected to the counterweight unit 3 and is used to drive the counterweight unit 3 to slide on the counterweight support arm 111, thereby changing the counterweight radius of the counterweight unit 3. The counterweight driving member can have the same structure as the hoisting driving member, and the specific structure can be selected from the prior art and will not be elaborated here specifically.

[0039] As an alternative embodiment of the embodiment of the present invention, the counterweight unit 3 includes a track 31, a counterweight fixed base 32, a fixed counterweight block 33, a movable counterweight block 34, and a counterweight adjustment assembly 35. The track 31 is fixedly arranged on the counterweight support arm 111. There are two tracks 31 which are relatively slidably installed on the counterweight support arm 111. The track 31 makes a relative slide with the counterweight support arm 111 under the drive of a counterweight driving member. The two ends of the track 31 are slidably placed on the track 31. The counterweight fixed base 32 is slidably placed on the track 31, so that the movable counterweight block 34 and the counterweight fixed base 32 slide stably. The counterweight fixed base 32 is slidably arranged at the distal end of the track 31, and the fixed counterweight block 33 is fixed thereon. The counterweight fixed base 32 can be a steel frame structure. Specifically, a first embedded hole 331 is provided in the fixed counterweight block 33, and a first internal threaded pipe 3311 can be fixedly arranged inside the first embedded hole 331. Threads are provided inside the first internal threaded pipe 3311, so as to facilitate the threaded nesting of the fixed counterweight block 33 and the rotating screw rod sleeve 352 to realize rotation. A plurality of the movable counterweight blocks 34 are arranged side by side at the proximal end of the track 31 and are slidably connected to the support frame 1 or the counterweight support arm 111. More specifically, the movable counterweight block 34 can be a block structure with a T-shaped cross section. The movable counterweight block 34 can be a cement structure. A second embedded hole 341 is provided in the movable counterweight block 34. The second embedded holes 341 on several movable counterweight blocks 34 correspond to each other one by one and can be axially communicated. The rotating screw rod sleeve 352 is threadedly nested in the inner cavity 321 of the counterweight fixed base 32. The driven screw rod 354 is threadedly nested inside the second embedded hole 341 and connects a plurality of movable counterweight blocks 34 in series. Further, a second internal threaded pipe 3411 can be fixedly arranged inside the second embedded hole 341. Threads are provided inside the second internal threaded pipe 3411, so as to facilitate the threaded nesting of the driven screw rod 354 and the movable counterweight block 34 to rotate relative to each other. Under the control of the counterweight adjustment assembly 35, according to the need of increasing or decreasing the counterweight, the movable counterweight block 34 contacts or separates from the fixed counterweight block 33.

[0040] As an alternative embodiment of the embodiment of the present invention, the counterweight adjustment assembly 35 includes a rotating rod 351, a rotating screw rod sleeve 352, a rotating driving member 353, and a driven screw rod 354.

[0041] The rotating rod 351 is rotatably connected to the counterweight fixed base 32; the rotating screw rod sleeve 352 is slidably and non-rotatably nested on the rotating rod 351.

[0042] The rotating driving member 353 is fixedly installed on the counterweight fixed base 32 and is connected to the rotating rod 351 for driving the rotating rod 351 to rotate.

[0043] A plurality of the movable counterweight blocks 34 are slidably connected to one end of the driven lead screw 354, and the other end of the driven lead screw 354 is rotatably connected to the support frame 1 or the counterweight support arm 111;

[0044] The end portions of the rotating lead screw sleeve 352 and the driven lead screw 354 are assembled and connected through a transmission structure 355.

[0045] The above-mentioned rotating rod 351 can be a multi-prismatic structure. A multi-prismatic groove adapted to the rotating rod 351 is provided inside the rotating lead screw sleeve 352, and the rotating rod 351 is nested inside the multi-prismatic groove, thereby realizing a slidable non-rotating nesting. Of course, the rotating rod 351 and the multi-prismatic groove can also be other non-cylindrical structures, which will not be elaborated here specifically.

[0046] During specific implementation, a third embedded hole 3541 is provided inside the driven lead screw 354, and the inner radius of the third embedded hole 3541 is greater than the circumscribed circle radius of the rotating rod 351. When the rotating lead screw sleeve 352 contacts the driven lead screw 354, the rotating rod 351 can be nested into the third embedded hole 3541, so as to satisfy the full contact between the rotating lead screw sleeve 352 and the driven lead screw 354, and the sliding range of the rotating lead screw sleeve 352 can be increased. The rotating lead screw sleeve 352 rotates, and under the drive of the thread, the rotating lead screw sleeve 352 moves towards the movable counterweight block 34 and enters the third embedded hole 3541. The rotating lead screw sleeve 352 and the driven lead screw 354 are connected to the driven lead screw 354 through the transmission structure 355. The rotation of the driven lead screw 354 causes the movable counterweight block 34 to be nested on the rotating lead screw sleeve 352 and fixed on the counterweight fixing base 32, thereby completing the weight increase. Through the combination of the driven lead screw 354 and the rotating lead screw sleeve 352, the movable counterweight block 34 can be integrally moved and fixed, avoiding the danger caused by the separation of the movable counterweight block 34 and facilitating the quantitative increase of the counterweight.

[0047] As an optional implementation manner of the embodiment of the present invention, the transmission structure 355 includes a lead screw end sleeve 3551 and an embedded groove 3552 that are in threaded fit and nested. The lead screw end sleeve 3551 is coaxially and fixedly connected to the end of the rotating lead screw sleeve 352, and the embedded groove 3552 is coaxially provided at the end of the driven lead screw 354.

[0048] When the rotating lead screw sleeve 352 contacts the driven lead screw 354, the lead screw end sleeve 3551 is threadedly fitted and nested inside the embedded groove 3552. When the lead screw end sleeve 3551 rotates to the limit position and reaches the bottom, the rotating lead screw sleeve 352 cannot rotate relative to the driven lead screw 354, thereby driving the driven lead screw 354 to rotate. When it is necessary to reduce the counterweight, the counterweight adjustment assembly 35 causes the counterweight fixed base 32 and the moving counterweight block 34 to be in full contact. The rotating drive member 353 drives the rotating rod 351 to rotate in the reverse direction, thereby driving the rotating lead screw sleeve 352 and the driven lead screw 354 to drive in the reverse direction, moving the moving counterweight block 34 in the reverse direction to complete the reduction of the counterweight. When the counterweight is reduced to the specified value, the counterweight adjustment assembly 35 drives the counterweight fixed base 32 away from the moving counterweight block 34 and cooperates with the rotational drive to complete the separation of the lead screw end sleeve 3551 and the embedded groove 3552, which will not be elaborated here. Of course, the transmission structure 355 can also be a multi-prism and multi-groove structure, which will not be elaborated here. An embedded hole is provided inside the driven lead screw 354, and the inner radius of the embedded hole is greater than the circumscribed circle radius of the rotating rod 351. When the rotating lead screw sleeve 352 contacts the driven lead screw 354, the rotating rod 351 can be nested inside the embedded hole, so as to ensure full contact between the rotating lead screw sleeve 352 and the driven lead screw 354, and increase the sliding range of the rotating lead screw sleeve 352.

[0049] As an alternative embodiment of the embodiment of the present invention, the rotating drive member 353 includes a motor 3531, a driving pulley 3532 and a driven pulley 3533. The motor 3531 is fixedly installed on the counterweight fixed base 32. The output shaft of the motor 3531 is coaxially and fixedly connected with the driving pulley 3532. The end of the rotating rod 351 is coaxially and fixedly connected with the driven pulley 3533. The driven pulley 3533 is connected to the driving pulley 3532 by a belt.

[0050] As one of the further preferred embodiments of the embodiment of the present invention, the moving counterweight block 34 is arranged at the junction of the counterweight support arm 111 and the support frame 1. In this way, the gravity of the moving counterweight block 34 will not generate a moment on the counterweight support arm 111, or the influence of the generated moment can be ignored.

[0051] As one of the further preferred embodiments of the embodiment of the present invention, the thickness of the fixed counterweight block 33 is greater than the thickness of a single moving counterweight block 34. Thus, when one end of the rotating lead screw sleeve 352 is embedded inside the moving counterweight block 34 and the other end of the rotating lead screw sleeve 352 is nested inside the fixed counterweight block 33, the separation of the rotating lead screw sleeve 352 from the fixed counterweight block 33 is avoided. The fixed counterweight block 33 can be a basic counterweight, which will not be elaborated here.

[0052] As Figure 7As shown in the figure, an embodiment of the present invention further provides a counterweight control method for a hanging device, including the following steps:

[0053] S1. Operate the lifting unit 2 to lift the lifted object, and the gravity sensing member senses the gravity of the lifted object as F i ;

[0054] S2. The lifting unit 2 moves on the lifting support arm 112, and the stroke sensor senses the moment arm radius of the lifting unit 2 as L 1i ;

[0055] Specifically, the above two steps can be completed by the lifting driving member driving the lifting unit 2 to move on the lifting support wall, lifting the lifted object by the lifting unit 2, and at this time, the stroke sensor senses the moment arm radius of the lifting unit 2;

[0056] S3. Adjust the gravity of the counterweight unit 3;

[0057] S4. Calculate the counterweight moment arm radius. Among them, M1 is the moment of the lifting support arm 112, M2 is the moment of the counterweight support arm 111, and F0 is the gravity of the counterweight unit 3.

[0058] Control the counterweight unit 3 to slide on the counterweight support arm 111 so that the moment arm radius of the counterweight unit 3 is L 2i .

[0059] Specifically, the counterweight driving member can be used to drive the counterweight unit 3 to slide on the counterweight support arm 111 so that the moment arm radius of the counterweight unit 3 is L 2i .

[0060] Refer to Figure 8 , the method for adjusting the gravity of the counterweight unit 3 in step 3 includes the following steps:

[0061] S31. Judge whether the current counterweight gravity F0 is greater than If so, execute S32; if not, execute S37;

[0062] S32. Calculate the number of additional counterweights, and round n to obtain N;

[0063] S33. Judge whether N is greater than zero. If so, execute S34; if not, maintain the existing operation;

[0064] S34. The counterweight fixed base 32 contacts the moving counterweight block 34;

[0065] S35. Search for a pre-set quantity-driving quantity information table to obtain the driving quantity;

[0066] S36. Rotate the driving member 353 to drive forward with the driving quantity;

[0067] S37. Calculate the reduced counterweight quantity, and round n' to obtain N'.

[0068] S38. Determine whether N' is greater than zero. If so, execute S39; if not, maintain the existing operation.

[0069] S39. The counterweight fixing base 32 contacts the moving counterweight block 34.

[0070] S310. Search the quantity-driving quantity information table to obtain the driving quantity.

[0071] S311. Rotate the driving member 353 to drive in the reverse direction of the driving quantity.

[0072] As described above, it is only a preferred embodiment of the present invention, and does not impose any form of limitation on the present invention. Any simple modification and equivalent change made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. An adjustable counterweight hanger device for construction, comprising a support frame, a support arm is rotatably installed at the top of the support frame, and the support arm includes a counterweight support arm and a hoisting support arm respectively arranged on both sides of the support frame; a hoisting unit is slidably arranged on the hoisting support arm for hoisting a hoisted object; characterized in that: A weight-adjustable counterweight unit is slidably provided on the counterweight support arm for balancing the torque of the lifted object by gravity; The building counterweight adjustable hanging device further includes a control operation unit, which further includes a gravity sensor, a travel sensor and a controller. Among them, the gravity sensor is installed on the lifting unit for sensing the gravity of the lifted object, and the travel sensor is arranged on the lifting support arm for sensing the moving distance of the lifting unit. The controller is electrically connected to the gravity sensor and the travel sensor respectively, and also controls the rotation of the support arm, the action of the lifting unit and the weight adjustment process of the counterweight unit; A counterweight driving member is provided on the counterweight support arm and is connected to the counterweight unit for driving the counterweight unit to slide on the counterweight support arm, thereby changing the counterweight radius of the counterweight unit; The counterweight unit includes a track, a counterweight fixed base, a fixed counterweight block, a movable counterweight block and a counterweight adjustment assembly. The track is slidably installed on the counterweight support arm and is connected to the counterweight driving member. The counterweight fixed base is slidably arranged at the distal end of the track, and the fixed counterweight block is fixed thereon; A first embedded hole is provided in the fixed counterweight block, a first internal threaded tube is fixedly arranged inside the first embedded hole, a thread is provided inside the first internal threaded tube, and the fixed counterweight block and the rotating screw sleeve are nested in a threaded manner to achieve rotation; A plurality of the movable counterweight blocks are arranged side by side at the proximal end of the track and are slidably connected to the support frame or the counterweight support arm; A second embedded hole is provided in the movable counterweight block, and the second embedded holes on a plurality of movable counterweight blocks correspond to each other one by one and are axially communicated. The rotating screw sleeve is threadedly nested and fitted in the inner cavity of the counterweight fixed base, and the driven screw is threadedly nested and fitted inside the second embedded hole to connect a plurality of movable counterweight blocks in series; A second internal threaded tube is fixedly arranged inside the second embedded hole, a thread is provided inside the second internal threaded tube, and the driven screw and the movable counterweight block are nested in a threaded manner to rotate relative to each other; Under the control of the counterweight adjustment assembly, according to the need of weight increase or decrease, the movable counterweight block contacts or disengages from the fixed counterweight block; The counterweight adjustment assembly includes a rotating rod, a rotating screw sleeve, a rotating driving member and a driven screw; The rotating rod is rotatably connected to the counterweight fixed base; The rotating screw sleeve is slidably and non-rotatably nested on the rotating rod; The rotating driving member is fixedly installed on the counterweight fixed base and is connected to the rotating rod for driving the rotating rod to rotate; A plurality of the movable counterweight blocks are slidably connected to one end of the driven screw, and the other end of the driven screw is rotatably connected to the support frame or the counterweight support arm; The ends of the rotating screw sleeve and the driven screw are assembled and connected through a transmission structure; The transmission structure includes a screw end sleeve and an embedded groove that are threadedly nested and fitted. The screw end sleeve is coaxially fixedly connected to the end of the rotating screw sleeve, and the embedded groove is coaxially provided at the end of the driven screw; The rotation driving member includes a motor, a driving pulley and a driven pulley. The motor is fixedly installed on the counterweight fixing base. The output shaft of the motor is coaxially and fixedly connected with the driving pulley. The end of the rotating rod is coaxially and fixedly connected with the driven pulley. The driven pulley is connected with the driving pulley by a belt.

2. The adjustable counterweight hanging device for buildings according to claim 1, characterized in that: The movable counterweight block is arranged at the junction of the counterweight support arm and the support frame.

3. The adjustable counterweight hanging device for construction according to claim 1, characterized in that: The thickness of the fixed counterweight block is greater than the thickness of a single movable counterweight block.

4. A counterweight control method for a hanger device, characterized in that, Based on the adjustable hanger device for building counterweights according to claim 1 or 2 or 3, the counterweight control method includes the following steps: S1. Operate the lifting unit to lift the lifted object, and the gravity sensing component senses the gravity of the lifted object as F i ; S2. The lifting unit moves on the hoisting support arm, and the travel sensor senses that the moment arm of the lifting unit is L 1i ; S3. Adjust the gravity of the counterweight unit; S4. Calculate the radius of the counterweight moment , where M1 is the moment of the hoisting support arm, M2 is the moment of the counterweight support arm, and F0 is the gravity of the counterweight unit Slide the counterweight unit on the counterweight support arm so that the moment arm of the counterweight unit is L 2i .

5. A counterweight control method for a hanger device according to claim 4, characterized in that, The method for adjusting the gravity of the counterweight unit in step 3 includes the following steps: S31. Determine whether the current counterweight gravity F0 is greater than . If so, execute S32; if not, execute S37. S32. Calculate the number of additional counterweights , round n to obtain N; S33. Judge whether N is greater than zero. If so, execute S34; S34. The counterweight fixing base contacts the movable counterweight block; S35. Search for a pre-set quantity-driving quantity information table to obtain the driving quantity; S36. The rotation driving member drives forward with the driving quantity; S37. Calculate the reduced number of counterweights , round n ’ to obtain N ’ ; S38. Determine N ’ Is it greater than zero? If so, execute S39; S39. The counterweight fixing base contacts the movable counterweight block; S310. Search for the quantity-driving quantity information table to obtain the driving quantity; S311. The rotation driving member drives in the reverse direction with the driving quantity.

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