Unit type curtain wall plate hoisting crane

Abstract

The utility model discloses a unit type curtain wall plate hoisting crane which comprises a chassis, a hoisting mechanism, a counterweight mechanism and a control box, the hoisting mechanism, the counterweight mechanism and the control box are arranged on the chassis, the hoisting mechanism comprises a suspension arm, a steel cable winding drum, a winding drum driving motor, a steel cable and a lifting hook, and the lifting hook is arranged at the front end of the suspension arm and connected with the steel cable winding drum through the steel cable. The steel cable winding drum is arranged on the base plate, the winding drum driving motor is electrically connected with the control box and drives the steel cable winding drum through the speed reducer, the balance weight mechanism comprises a telescopic frame and a balance weight block, and universal wheels are arranged at four corners of the bottom face of the base plate. And the depth and the left-right position of a hoisting point can be accurately adjusted and controlled, the hoisting process is convenient and safe, and the hoisting cost is low.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a unitized curtain wall panel lifting crane with simple structure, low cost, convenient use and high reliability. Background Art

[0002] There are more and more prefabricated buildings now. In order to meet the needs of building exterior decoration construction, plate-type curtain wall installation technology will be adopted. Among them, unit curtain wall panels are assembled into independent curtain wall panels in advance in the factory with glass, metal frames and thermal insulation materials according to the separation design requirements of the building's exterior facade curtain wall. They are then transported to the construction site for hoisting and directly connected to the building structure. They have the characteristics of simple and fast installation, short construction period and beautiful building facade, and have been widely used.

[0003] Since the unitized curtain wall panels are relatively large in surface area, the height of a single panel generally reaches one or more standard floor heights and is heavy. If conventional lifting equipment such as steam cranes or tower cranes are used for the operation, the lifting cost is high and the control accuracy of the lifting points is low. If built-in winches are used for lifting, the lifting points are fixed, which makes it difficult to control the lifting position of the curtain wall panels and the distance from the building wall, and the lifting stability and safety are low. Utility Model Content

[0004] The utility model mainly solves the above-mentioned technical problems and provides a unitized curtain wall panel lifting crane with simple structure, low cost, convenient use and high reliability.

[0005] In order to solve the above-mentioned technical problems, the utility model mainly adopts the following technical solutions:

[0006] The utility model discloses a unitized curtain wall panel lifting crane, comprising a chassis and a lifting mechanism, a counterweight mechanism and a control box arranged on the chassis, wherein the lifting mechanism comprises a boom, a steel cable drum, a drum driving motor, a steel cable and a hook, wherein the hook is arranged at the front end of the boom and is connected to the steel cable drum through the steel cable, the drum driving motor is electrically connected to the control box and drives the steel cable drum through a reducer, the counterweight mechanism comprises a counterweight block, and universal wheels are arranged at the four corners of the bottom surface of the chassis. The crane adopts a movable assembled structure, can be flexibly arranged inside a low floor according to the lifting requirements of the glass curtain wall panel, can accurately control and adjust the depth and left and right positions of the lifting points, the lifting process is convenient and safe, and the lifting cost is also low.

[0007] Preferably, the boom includes support rods and pulling rods, there are two support rods in a herringbone structure, the top ends of the support rods are connected to each other, and the bottom ends of the support rods are respectively fixed to the front sides of the chassis. There are two pulling rods in a herringbone structure, the top ends of the pulling rods are fixed to the top ends of the support rods, and the lower ends of the pulling rods are respectively fixed to the two side edges of the chassis. The boom adopts a fixed structure with a simple structure. The pulling rods are used to pull the support rods to improve the overall structural strength of the boom and the safety of lifting.

[0008] Preferably, connecting seats are fixed on both sides of the front of the chassis, and the connecting seats are in a U-shaped structure. Pin holes are provided on both side plates of the U-shaped structure, and pins are passed through the pin holes. A rear bracket is provided at the rear of the chassis. The boom comprises a support rod and a cable assembly. The support rods are two and have a herringbone structure. The top ends of the support rods are connected to each other, and the bottom ends of the support rods are provided with ear plates, and the ear plates are provided with pin holes matching the above-mentioned pins. The support rods are sleeved on the pins through the ear plates and rotate around the pins as a fulcrum. The cable assembly comprises a cable and a hand winch, one end of the hand winch is connected to the top end of the support rod through the cable, and the other end of the hand winch is connected to the above-mentioned rear bracket. The hand winch pulls and controls the rotation of the support rod. The boom adopts an adjustable structure, and the support rod is pulled by the hand winch and the cable to rotate along the fulcrum and adjust the forward inclination angle of the boom, and the distance between the hanging point and the wall of the building is adjusted accordingly. The cable also plays a role in pulling the support rod and enhancing the structural strength of the boom.

[0009] Preferably, boom angle limiters are provided at the connecting seats on both sides of the chassis, and the boom angle limiters can prevent the boom from tilting backward at too large an angle, causing the hanging point to be too close to the building wall and affecting the safety of the hoisting of the glass curtain wall panel.

[0010] Preferably, the crane is further provided with a chassis locking mechanism, which includes a support plate placed on the floor plate, a locking screw and a locking nut which are perpendicular to the support plate and fixed to the support plate. A plurality of through holes are respectively provided on the left and right sides of the chassis. The locking screws coincide with the through holes and are passed through the through holes. The locking screws are fixed to the chassis through the locking nuts. The chassis locking mechanism can lock the chassis by lifting the chassis after positioning according to the hoisting requirements, so as to prevent the chassis from slipping due to the universal wheels during hoisting, which may lead to safety accidents.

[0011] Preferably, the counterweight mechanism also includes a telescopic frame plugged into the rear end of the chassis, a universal wheel is provided on the rear bottom surface of the telescopic frame, the counterweight block is placed on the telescopic frame, the telescopic frame is used to place and adjust the relative position of the counterweight block, and then adjust the counterweight torque and weight. When not in use, the telescopic frame can be retracted into the chassis to reduce the size of the equipment.

[0012] Preferably, the telescopic frame is provided with a safety cable for tying the counterweight block, and the safety cable is used to tie the counterweight block to prevent hoisting safety accidents caused by removing the counterweight block.

[0013] Preferably, the hook is provided with a hook torque overlimit switch for limiting the lifting weight and improving safety.

[0014] The beneficial effects of the utility model are as follows: the crane adopts a movable assembled structure, can be flexibly set inside a low floor according to the hoisting requirements of the unitized curtain wall panels, and can accurately control and adjust the depth and left and right positions of the hoisting points. The hoisting process is convenient and safe, and the hoisting cost is also low. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model.

[0016] Figure 2 It is another structural schematic diagram of the utility model.

[0017] In the figure, 10. chassis, 101. universal wheel, 102. connecting seat, 103. rear bracket, 20. lifting mechanism, 201. boom, 2011. support rod, 2012. pull rod, 202. cable drum, 203. drum drive motor, 204. steel cable, 205. hook, 206. cable assembly, 2061. cable, 2062. hand hoist, 30. counterweight mechanism, 301. counterweight block, 302. telescopic frame, 40. control box, 50. boom angle limiter, 60. chassis locking mechanism, 601. support plate, 602. locking screw, 603. locking nut, 70. hook torque overlimit switch. DETAILED DESCRIPTION

[0018] The technical solution of the utility model is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0019] Embodiment 1: A unitized curtain wall panel hoisting crane according to Embodiment 1, such as Figure 1As shown, it includes a chassis 10 and a lifting mechanism 20, a counterweight mechanism 30, a locking mechanism 60, and a control box 40 placed on the chassis. Universal wheels 101 are installed at the four corners of the bottom surface of the above-mentioned chassis respectively. The above-mentioned lifting mechanism includes a boom 201, a steel cable drum 202, a drum driving motor 203, a steel cable 204 and a hook 205. The hook is placed at the front end of the boom and is connected to the steel cable drum through a steel cable. A hook torque overlimit switch 70 is also designed at the upper end of the hook. The drum driving motor is electrically connected to the control box and drives the steel cable drum through a reducer; the above-mentioned boom adopts a fixed structure, including a support rod 2011 and a pull rod 2012. The support rods are two, in a herringbone structure and tilted forward. The top ends of the support rods are connected to each other and suspended in the air, and the bottom ends of the support rods are connected to the control box and driven by the reducer. The two sides of the front of the chassis are fixed, and there are two pull rods in a herringbone structure. The top of the pull rod is connected to the top of the support rod, and the lower end of the pull rod is respectively fixed to the two side edges of the chassis; the above-mentioned counterweight mechanism includes a counterweight block 301, a telescopic frame 302 and a safety cable. The telescopic frame is inserted at the rear end of the chassis. Two universal wheels are installed on the bottom surface of the rear of the telescopic frame and are telescopically movable through the universal wheels. The counterweight block is placed on the telescopic frame and is tied to the telescopic frame through a safety cable; the above-mentioned chassis locking mechanism includes a support plate 601 placed on the floor plate and a locking screw 602 and a locking nut 603 perpendicular to the support plate and fixed to the support plate. A plurality of through holes are respectively provided on the left and right sides of the chassis. The locking screws coincide with the above-mentioned through holes and are penetrated into the through holes, and the locking screws are fixed to the chassis through the locking nuts.

[0020] When in use, move the crane to the corresponding lifting position through the universal wheel. According to the size and weight of the unitized curtain wall panel, the distance between the lifting point and the building wall is appropriate, the telescopic frame is pulled out from the chassis, and the corresponding counterweight block is placed on the telescopic frame according to the lifting counterweight requirements and tied to the telescopic frame through the safety cable bolt. Adjust the locking nut to make the chassis as a whole extend and exceed the height of the universal wheel, so that the universal wheel is separated from the surface of the floor plate and exposed to the air. The chassis is fixed to the floor plate through the locking screw and the support plate. At this time, the positioning and adjustment of the crane are completed, the power supply is connected, the controller button is turned on and the drum drive motor is started. The motor drives the steel cable drum to rotate through the reducer and pulls the steel cable to lift the curtain wall panel. The torque overlimit switch on the hook can safely control the lifting weight.

[0021] Embodiment 2: A unitized curtain wall panel hoisting crane according to Embodiment 2, such as Figure 2As shown, it includes a chassis and a lifting mechanism, a counterweight mechanism, a locking mechanism, and a control box placed on the chassis. The front two sides of the chassis are respectively designed with connecting seats 102, and the connecting seats are U-shaped structures. The two side plates of the U-shaped structure are designed with pin shaft holes, and the pin shaft holes are penetrated by pin shafts. A rear bracket is installed at the rear of the chassis. The connecting seat is provided with a boom angle limiter 50, which can control the tilt angle of the boom; the boom adopts an adjustable structure, including a support rod and a cable assembly 206, and the support rods are two, which are in a herringbone structure, and the tops of the support rods are opposite to each other. They are interconnected and suspended, and an ear plate is designed at the bottom end of the support rod. A pin hole matching the above-mentioned pin shaft is designed on the ear plate. The support rod is mounted on the pin shaft through the ear plate and rotates with the pin shaft as a fulcrum. The cable assembly includes a cable 2061 and a hand winch 2062. One end of the hand winch is connected to the top end of the support rod through the cable, and the other end of the hand winch is connected to the above-mentioned rear bracket. The hand winch can pull and control the rotation of the support rod and adjust the inclination angle of the boom accordingly. The other parts of this embodiment 2 are similar to the corresponding parts of embodiment 1 and will not be repeated herein.

[0022] During use, the operator can accurately control the forward tilt angle of the boom through the hand winch according to the hoisting requirements of the unitized curtain wall panels, and accordingly control the distance between the hanging point and the building wall. The boom angle limiter can locate the extreme position of the boom to prevent the hanging point from being too close to the building wall, thereby improving the stability and reliability of the hoisting control.

[0023] In the description of the present utility model, technical terms such as "upper", "lower", "front", "back", "left", "right", "longitudinal", "horizontal", "inside" and "outside" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing and understanding the technical scheme of the present utility model. The above description does not limit the present utility model, and the present utility model is not limited to the examples described above. Any changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present utility model should be deemed to be within the scope of protection of the present utility model.

Claims

1. A unitized curtain wall panel hoisting crane, characterized in that: The crane comprises a chassis (10) and a lifting mechanism (20), a counterweight mechanism (30), and a control box (40) disposed on the chassis. The lifting mechanism comprises a boom (201), a steel cable drum (202), a drum drive motor (203), a steel cable (204), and a hook (205). The hook is disposed at the front end of the boom and is connected to the steel cable drum via the steel cable. The drum drive motor is electrically connected to the control box and drives the steel cable drum via a reducer. The counterweight mechanism comprises a counterweight block (301). Universal wheels (101) are provided at the four corners of the bottom surface of the chassis.

2. A unitized curtain wall panel hoisting crane according to claim 1, characterized in that: The boom (201) comprises a support rod (2011) and a pull rod (2012), wherein the support rods are two in number and present a herringbone structure, the top ends of the support rods are connected to each other, and the bottom ends of the support rods are respectively fixed to the front sides of the chassis (10), and the pull rods are two in number and present a herringbone structure, the top ends of the pull rods are respectively fixed to the top ends of the support rods, and the bottom ends of the pull rods are respectively fixed to the edges of the two sides of the chassis.

3. The unitized curtain wall panel hoist according to claim 1, characterized in that: Connecting seats (102) are fixedly provided on both sides of the front of the chassis (10), the connecting seats are in a U-shaped structure, and pin holes are provided on both side plates of the U-shaped structure, and pins are inserted into the pin holes. A rear bracket (103) is provided at the rear of the chassis, and the boom (201) comprises a support rod (2011) and a cable assembly (206). The support rods are two and are in a herringbone structure. The top ends of the support rods are connected to each other, and the bottom ends of the support rods are provided with ear plates, and the ear plates are provided with pin holes matching the above-mentioned pins. The support rod is sleeved on the pin through the ear plates and rotates with the pin as a fulcrum. The cable assembly comprises a cable (2061) and a hand chain hoist (2062), one end of the hand chain hoist is connected to the top end of the support rod through the cable, and the other end of the hand chain hoist is connected to the above-mentioned rear bracket, and the hand chain hoist pulls and controls the rotation of the support rod.

4. The unitized curtain wall panel hoist according to claim 3, characterized in that: The connecting seats (102) on both sides of the chassis are provided with boom angle limiters (50).

5. A unitized curtain wall panel hoisting crane according to claim 1, 2, 3 or 4, characterized in that: The crane is also provided with a chassis locking mechanism (60), which comprises a support plate (601) placed on the floor plate, a locking screw (602) and a locking nut (603) perpendicular to the support plate and fixed to the support plate, and a plurality of through holes are respectively provided on the left and right sides of the chassis, the locking screws are matched with the through holes and penetrated into the through holes, and the locking screws are fixed to the chassis via the locking nuts.

6. A unitized curtain wall panel hoisting crane according to claim 1, 2, 3 or 4, characterized in that: The counterweight mechanism (30) further comprises a telescopic frame (302) plugged into the rear end of the chassis, a universal wheel (101) being provided on the rear bottom surface of the telescopic frame, and the counterweight block (301) is placed on the telescopic frame.

7. The unitized curtain wall panel hoisting crane according to claim 6, characterized in that: The telescopic frame (302) is provided with a safety cable for tying the counterweight.

8. The unitized curtain wall panel hoist according to claim 1, characterized in that: The hook (205) is provided with a hook torque overlimit switch (70).

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