Automatic steel pipe fixing device for crane

Abstract

The utility model discloses an automatic steel pipe fixing device for a crane, which relates to the technical field of steel pipe hoisting, and comprises a main body unit, a fixed unit and a moving unit arranged in the main body unit, and a transmission unit arranged in the fixed unit, the fixing unit comprises a U-shaped base installed on the inner bottom wall of the main body unit, two fixing grooves formed in the opposite inner side walls of the U-shaped base, lead screws movably installed in the fixing grooves, moving pieces installed on the circumferential side faces of the lead screws, a first driving motor installed at the input end of one lead screw, and a limiting belt installed between the two moving pieces. According to the automatic steel pipe fixing device for the crane, the fixing unit and the moving unit are arranged, so that a plurality of steel pipes can be conveniently fixed.

Description

Technical Field

[0001] The utility model relates to the technical field of steel pipe hoisting, in particular to an automatic steel pipe fixing device for a crane. Background Art

[0002] After the flattening process, the steel strip enters the bending and forming machine for arc forming to form a round tube-shaped steel pipe blank. The steel pipe is reshaped again and cut to length to form a steel pipe product of a certain length. The cut-to-length steel pipes are piled up to a certain number and then bundled. Since steel pipes are usually long, the bundled steel pipes are usually lifted and transferred in the air by a crane.

[0003] Jianjingsuo, in its authorization announcement number CN111874819A, discloses a steel pipe transport crane. This crane is constructed by placing two cranes side by side. Each crane's slewing mechanism rotates a hoist to a suitable lifting angle. The hooks of the two hoists lift the steel pipe and place it on a V-frame. The V-frame can be moved back and forth on its tracks to adjust the position of the pipe. A traveling flat car moves on its wheels, allowing the pipe transport crane to deliver the pipe to other locations. This small pipe transport crane can replace a cart to lift steel pipes in smaller environments. It is flexible and convenient to use, and the lifting angle and position can be freely adjusted, making it suitable for a variety of complex environments.

[0004] Although the above solution can lift steel pipes in a smaller environment by setting up two cranes placed side by side, and is flexible and convenient to use, and the lifting angle and position can be freely adjusted, it can only fix a single steel pipe. It is inconvenient when transporting and fixing multiple steel pipes. For this reason, we propose an automatic steel pipe fixing device for cranes. Utility Model Content

[0005] The main purpose of the utility model is to provide an automatic steel pipe fixing device for a crane, which solves the problem that only a single steel pipe can be fixed and it is inconvenient to transport and fix multiple steel pipes by setting a fixing unit and a moving unit.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] An automatic steel pipe fixing device for a crane comprises a main unit, a fixing unit and a moving unit arranged inside the main unit, and a transmission unit arranged inside the fixing unit;

[0008] The fixing unit includes a U-shaped seat mounted on the inner bottom wall of the main unit, two fixing grooves provided on opposite inner side walls of the U-shaped seat, a screw rod movably mounted in the fixing groove, a moving member mounted on the side surface of the screw rod, a first driving motor mounted on the input end of one of the screw rods, and a limiting belt mounted between the two moving members;

[0009] The movable unit includes a fixed seat installed on the top wall of the main unit, a threaded shaft movably installed inside the fixed seat, a movable seat installed on the circumferential side of the threaded shaft, a lifting member arranged below the movable seat, and a second drive motor installed at the input end of the threaded shaft.

[0010] Preferably, the main unit includes an L-shaped fixing seat and a protective plate installed on the top of the L-shaped fixing seat.

[0011] Preferably, there are two groups of fixing units, and the two groups of fixing units are symmetrically arranged with respect to a bisecting plane of the U-shaped seat.

[0012] Preferably, the fixing unit further comprises a lifting belt installed on the top of the U-shaped seat.

[0013] Preferably, the lifting member includes a hydraulic telescopic cylinder installed at the bottom of the moving seat, and a lifting hook installed at the telescopic end of the hydraulic telescopic cylinder.

[0014] Preferably, the movable unit further comprises a limiting washer mounted on the inner side wall of the fixing seat, and the limiting washer is sleeved on the side surface of the threaded shaft.

[0015] Preferably, the transmission unit includes a pulley mounted on the end of the screw rod, and a transmission belt movably mounted between two of the pulleys.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] In the utility model, through the provision of a fixed unit and a movable unit, when it is necessary to lift multiple steel pipes, the wire is reeled in and the multiple steel pipes are placed in the U-shaped seat. Subsequently, the first drive motor drives one of the lead screws to rotate, and the pulley and the transmission belt drive the other lead screw to rotate synchronously, so that the movable part moves up and down along the lead screw until it stops when the limiting belt is in contact with the top steel pipe, thereby realizing convenient fixation of multiple steel pipes; when the fixation of multiple steel pipes is completed, the telescopic end of the hydraulic telescopic cylinder extends, so that the lifting hook passes through the lifting belt, and then the telescopic end of the hydraulic telescopic cylinder contracts, and the steel pipe in the U-shaped seat is lifted by the lifting hook. Subsequently, the second drive motor drives the threaded shaft to rotate, so that the movable seat drives the lifting part to move along the threaded shaft until the steel pipe is lifted and stops. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model;

[0019] Figure 2 This is a right side structural diagram of the present utility model;

[0020] Figure 3 For this utility model Figure 2 Schematic diagram of the cross-sectional structure at AA in the middle;

[0021] Figure 4 For this utility model Figure 2 Schematic diagram of the cross-section structure at the middle BB;

[0022] Figure 5 It is a front structural schematic diagram of the utility model.

[0023] In the picture:

[0024] 1. Main unit; 101. L-shaped fixing seat; 102. Protective plate;

[0025] 2. Fixed unit; 201. U-shaped seat; 202. Screw; 203. First drive motor; 204. Moving part; 205. Limiting belt; 206. Lifting belt;

[0026] 3. Moving unit; 301. Threaded shaft; 302. Second drive motor; 303. Moving seat; 304. Lifting piece; 3041. Hydraulic telescopic cylinder; 3042. Lifting hook; 305. Limiting washer;

[0027] 4. Transmission unit; 401. Pulley; 402. Transmission belt. DETAILED DESCRIPTION

[0028] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods. Example 1

[0029] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5 As shown, an automatic steel pipe fixing device for a crane includes a main unit 1, a fixing unit 2 and a moving unit 3 arranged inside the main unit 1, and a transmission unit 4 arranged inside the fixing unit 2;

[0030] like Figure 5 As shown, the fixed unit 2 includes a U-shaped seat 201 mounted on the inner bottom wall of the main unit 1, two fixing grooves provided on the inner side walls opposite to each other of the U-shaped seat 201, a screw rod 202 movably mounted in the fixing groove, a moving member 204 mounted on the side surface of the screw rod 202, a first drive motor 203 mounted on the input end of one of the screw rods 202, and a limiting belt 205 mounted between the two moving members 204. When the first drive motor 203 drives the screw rod 202 to rotate, the moving member 204 moves up and down along the screw rod 202.

[0031] like Figure 4As shown, the movable unit 3 includes a fixed seat installed on the inner top wall of the main unit 1, a threaded shaft 301 movably installed inside the fixed seat, a movable seat 303 installed on the side surface of the threaded shaft 301, a lifting piece 304 arranged below the movable seat 303, and a second driving motor 302 installed at the input end of the threaded shaft 301. When the second driving motor 302 drives the threaded shaft 301 to rotate, the movable seat 303 can drive the lifting piece 304 to move along the threaded shaft 301.

[0032] like Figure 1 As shown, the main unit 1 includes an L-shaped fixing base 101 and a protective plate 102 installed on the top of the L-shaped fixing base 101. The setting of the L-shaped fixing base 101 provides support for the stable operation of the entire device.

[0033] like Figure 2 As shown, there are two groups of fixing units 2, and the two groups of fixing units 2 are symmetrically arranged with respect to the bisecting plane of the U-shaped seat 201, thereby realizing convenient clamping of the steel pipe.

[0034] like Figure 2 As shown, the fixing unit 2 further includes a lifting belt 206 installed on the top of the U-shaped seat 201. The provision of the lifting belt 206 facilitates the lifting and movement of the steel pipe.

[0035] like Figure 2 As shown, the lifting member 304 includes a hydraulic telescopic cylinder 3041 installed at the bottom of the moving seat 303, and a lifting hook 3042 installed at the telescopic end of the hydraulic telescopic cylinder 3041. When the telescopic end of the hydraulic telescopic cylinder 3041 is extended or retracted, it can drive the lifting hook 3042 to move up and down.

[0036] like Figure 3 As shown, the transmission unit 4 includes a pulley 401 installed at the end of the screw rod 202, and a transmission belt 402 movably installed between the two pulleys 401. When one screw rod 202 rotates, the other screw rod 202 can be driven to rotate synchronously through the pulley 401 and the transmission belt 402.

[0037] When multiple steel pipes need to be hoisted, the line is reeled in and the multiple steel pipes are placed in the U-shaped seat 201. Then, the first drive motor 203 drives one of the screw rods 202 to rotate, and the pulley 401 and the transmission belt 402 drive the other screw rod 202 to rotate synchronously, so that the moving part 204 moves up and down along the screw rod 202 until the limiting belt 205 is in contact with the top steel pipe, thereby stopping, thereby realizing convenient fixation of multiple steel pipes. Example 2

[0038] like Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 as well as Figure 5As shown, an automatic steel pipe fixing device for a crane includes a main unit 1, a fixing unit 2 and a moving unit 3 arranged inside the main unit 1, and a transmission unit 4 arranged inside the fixing unit 2;

[0039] like Figure 5 As shown, the fixed unit 2 includes a U-shaped seat 201 mounted on the inner bottom wall of the main unit 1, two fixing grooves provided on the inner side walls opposite to each other of the U-shaped seat 201, a screw rod 202 movably mounted in the fixing groove, a moving member 204 mounted on the side surface of the screw rod 202, a first drive motor 203 mounted on the input end of one of the screw rods 202, and a limiting belt 205 mounted between the two moving members 204. When the first drive motor 203 drives the screw rod 202 to rotate, the moving member 204 moves up and down along the screw rod 202.

[0040] like Figure 4 As shown, the movable unit 3 includes a fixed seat installed on the inner top wall of the main unit 1, a threaded shaft 301 movably installed inside the fixed seat, a movable seat 303 installed on the side surface of the threaded shaft 301, a lifting piece 304 arranged below the movable seat 303, and a second driving motor 302 installed at the input end of the threaded shaft 301. When the second driving motor 302 drives the threaded shaft 301 to rotate, the movable seat 303 can drive the lifting piece 304 to move along the threaded shaft 301.

[0041] like Figure 1 As shown, the main unit 1 includes an L-shaped fixing base 101 and a protective plate 102 installed on the top of the L-shaped fixing base 101. The setting of the L-shaped fixing base 101 provides support for the stable operation of the entire device.

[0042] like Figure 2 As shown, there are two groups of fixing units 2, and the two groups of fixing units 2 are symmetrically arranged with respect to the bisecting plane of the U-shaped seat 201, thereby realizing convenient clamping of the steel pipe.

[0043] like Figure 2 As shown, the fixing unit 2 further includes a lifting belt 206 installed on the top of the U-shaped seat 201. The provision of the lifting belt 206 facilitates the lifting and movement of the steel pipe.

[0044] like Figure 2 As shown, the lifting member 304 includes a hydraulic telescopic cylinder 3041 installed at the bottom of the moving seat 303, and a lifting hook 3042 installed at the telescopic end of the hydraulic telescopic cylinder 3041. When the telescopic end of the hydraulic telescopic cylinder 3041 is extended or retracted, it can drive the lifting hook 3042 to move up and down.

[0045] like Figure 4As shown, the movable unit 3 also includes a limiting washer 305 installed on the inner side wall of the fixed seat, and the limiting washer 305 is sleeved on the side surface of the threaded shaft 301. The setting of the limiting washer 305 prevents the movable seat 303 from contacting and colliding with the inner side wall of the fixed seat during the movement of the threaded shaft 301.

[0046] like Figure 3 As shown, the transmission unit 4 includes a pulley 401 installed at the end of the screw rod 202, and a transmission belt 402 movably installed between the two pulleys 401. When one screw rod 202 rotates, the other screw rod 202 can be driven to rotate synchronously through the pulley 401 and the transmission belt 402.

[0047] After the fixation of multiple steel pipes is completed, the telescopic end of the hydraulic telescopic cylinder 3041 is extended, so that the lifting hook 3042 passes through the lifting belt 206, and then the telescopic end of the hydraulic telescopic cylinder 3041 is contracted, and the steel pipe in the U-shaped seat 201 is lifted by the lifting hook 3042. Then, the second drive motor 302 drives the threaded shaft 301 to rotate, so that the movable seat 303 drives the lifting part 304 to move along the threaded shaft 301 until the steel pipe is lifted and stops.

[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An automatic steel pipe fixing device for a crane, comprising a main unit (1), characterized in that: It also includes a fixed unit (2) and a movable unit (3) arranged inside the main unit (1), and a transmission unit (4) arranged inside the fixed unit (2); The fixing unit (2) comprises a U-shaped seat (201) mounted on the inner bottom wall of the main body unit (1), two fixing grooves provided on opposite inner side walls of the U-shaped seat (201), a screw rod (202) movably mounted in the fixing groove, a moving member (204) mounted on the side surface of the screw rod (202), a first driving motor (203) mounted on the input end of one of the screw rods (202), and a limiting belt (205) mounted between the two moving members (204); The movable unit (3) comprises a fixed seat mounted on the inner top wall of the main unit (1), a threaded shaft (301) movably mounted inside the fixed seat, a movable seat (303) mounted on the circumferential side of the threaded shaft (301), a lifting member (304) disposed below the movable seat (303), and a second drive motor (302) mounted at the input end of the threaded shaft (301).

2. The automatic steel pipe fixing device for a crane according to claim 1, characterized in that: The main body unit (1) comprises an L-shaped fixing seat (101) and a protective plate (102) mounted on the top of the L-shaped fixing seat (101).

3. The automatic steel pipe fixing device for a crane according to claim 2, characterized in that: There are two groups of the fixing units (2), and the two groups of the fixing units (2) are symmetrically arranged with respect to a bisecting plane of the U-shaped seat (201).

4. The automatic steel pipe fixing device for a crane according to claim 3, characterized in that: The fixing unit (2) further comprises a lifting belt (206) mounted on the top of the U-shaped seat (201).

5. The automatic steel pipe fixing device for a crane according to claim 1, characterized in that: The lifting member (304) comprises a hydraulic telescopic cylinder (3041) installed at the bottom of the moving seat (303), and a lifting hook (3042) installed at the telescopic end of the hydraulic telescopic cylinder (3041).

6. The automatic steel pipe fixing device for a crane according to claim 1, characterized in that: The movable unit (3) further comprises a limiting washer (305) mounted on the inner side wall of the fixed seat, and the limiting washer (305) is sleeved on the circumferential side of the threaded shaft (301).

7. The automatic steel pipe fixing device for a crane according to claim 2, characterized in that: The transmission unit (4) comprises a pulley (401) mounted on the end of the screw rod (202), and a transmission belt (402) movably mounted between two pulleys (401).

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