Anti-falling device for traction steel cable

Abstract

A device for preventing a traction steel cable from falling comprises two bottom plates hinged to each other, the upper portion of each bottom plate is provided with a group of bearing seats, each group of bearing seats is rotatably connected with a roll shaft, the steel cable crosses a coal pile under the guidance of the bearing seats and the roll shafts, a lead screw for adjusting the included angle of the two bottom plates is arranged between the two bottom plates, and a fixing rod is arranged on the outer side of each bottom plate. The two hinged bottom plates are placed at the top of a coal pile, so that the steel cable can leave the coal pile on the two sides of the coal pile and is prevented from falling into the coal pile, the outer contour diameter of each bearing seat is larger than the diameter of the roller shaft, and the steel cable can slide between the bearing seats on the two sides when bypassing the device, so that the steel cable can be prevented from being separated from the device; the rotating roll shaft can isolate the steel cable from the coal pile and prevent the steel cable from falling into the coal pile, sliding friction of the steel cable and the roll shaft is converted into rolling friction, friction force is greatly reduced, abrasion of the steel cable is reduced, the included angle of the two bottom plate supports can be adjusted through the lead screw, and the device can adapt to inclination angles of the tops of different coal piles. Meanwhile, the distance between the steel cable and the top of the coal pile can be adjusted, the steel cable is further prevented from making contact with the coal pile, the fixing rods are inserted into the coal pile, the device and the coal pile can be better fixed, and the device is prevented from shaking when pressed.

Description

Technical Field

[0001] The invention relates to the field of thermal power generation, and in particular to a device for preventing a traction steel cable from falling. Background Art

[0002] In China, coal stockpiles are divided into open-air and closed types. Due to environmental protection requirements, open-air coal yards should take measures to prevent coal dust from damaging the environment. Covering with rainproof and dustproof canvas is the most commonly used technical measure. The dustproof plastic sheet is covered and uncovered manually. When using it, the staff needs to climb to the top of the coal pile in advance, and the canvas must be pulled to the coal pile with a rope at the top. When covering manually, the staff needs to climb up and down the coal pile according to the weather conditions, which is labor-intensive and has high safety risks.

[0003] At present, mechanical canvas covering devices have been used in some power plants. The principle is to directly connect the canvas with the steel cable on the winch. After starting the winch, the canvas is turned over the coal pile with the steel cable so as to cover the entire coal pile. When this structure pulls the canvas, the steel cable passes over the coal pile from one side of the canvas to connect to the winch fixed on the other side of the coal pile. When the steel cable pulls the canvas, the steel cable exerts downward pressure on the top of the coal pile, and the steel cable will sink into the coal pile. After the steel cable sinks into the coal pile, it will produce great resistance, which will not only cause the steel cable to wear but also prevent the canvas from crossing the top of the coal pile. Therefore, workers must go to the sunken place and pull out the steel cable by hand, which increases the workload and reduces work efficiency. Summary of the invention

[0004] In view of the above-mentioned deficiencies in the prior art, the present invention provides a device for preventing a traction steel cable from sinking into the coal pile at the top of the coal pile, causing the canvas to be unable to cross the coal pile.

[0005] The purpose of the present invention is to be achieved through the following technical solutions: A device for preventing a traction steel cable from falling comprises two base plates hinged to each other, each base plate having a group of bearing seats on the upper portion, each group of bearing seats being rotatably connected to a roller shaft, the steel cable passes over a coal pile under the guidance of the bearing seats and the roller shaft, a lead screw for adjusting the angle between the two base plates is provided between the two base plates, and a fixing rod is provided on the outer side of each base plate.

[0006] The outer contour diameter of the bearing seat is larger than the diameter of the roller shaft.

[0007] A guide plate is respectively provided in the middle of the two adjacent groups of bearing seats, and an oblique guide plate is provided on the outer side of the outermost bearing seat.

[0008] A hinge seat is provided on one side of the base plate, a hinge nut is hinged in the hinge seat of the base plate No. 1 hinge seat, an adjustable screw seat is hinged in the hinge seat of the base plate No. 2 hinge seat, one side of the screw is rotatably connected to the adjustable screw seat, and the other side of the screw is threadedly connected to the nut.

[0009] Two symmetrical fixing rod nut seats are arranged on the outer side of the bottom plate, and the fixing rods are threadedly connected to the fixing rod nut seats.

[0010] Beneficial effects: The two bottom plates hinged to each other are placed on the top of the coal pile, so that the steel cable can leave the coal pile on both sides of the coal pile to avoid the steel cable from sinking into the coal pile. The outer contour diameter of each bearing seat is larger than the diameter of the roller. When the steel cable passes around the device, it will slide in the middle of the bearing seats on both sides to prevent the steel cable from leaving the device. The rotating roller can not only isolate the steel cable from the coal pile to avoid the steel cable from sinking into the coal pile, but also convert the sliding friction between the steel cable and the roller into rolling friction, which greatly reduces the friction and reduces the wear of the steel cable. The screw can adjust the angle between the two bottom plate brackets, so that the device can adapt to the inclination angle of the top of different coal piles, and at the same time can adjust the distance between the steel cable and the top of the coal pile to further avoid contact between the steel cable and the coal pile. The fixing rod is inserted into the coal pile, which can better fix the device and the coal pile to prevent the position of the device from shaking when it is under pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 The figure is a schematic diagram of the structure of the device for preventing the traction cable from falling described in the present invention.

[0012] Figure 2 It is a front view structural schematic diagram of the device for preventing a traction steel cable from falling according to the present invention.

[0013] Figure 3 This is a schematic diagram of the bottom plate structure of the present invention. DETAILED DESCRIPTION

[0014] The present invention is further described in detail below according to the accompanying drawings and embodiments: refer to Figure 1 , 2 3. The device includes two mutually hinged bottom plates 110, which are placed on the top of the coal pile so that the steel cable can leave the coal pile on both sides of the coal pile to avoid the steel cable sinking into the coal pile. The bottom plate 110 is a concave arc-shaped steel plate, and the lower part of the curved arc-shaped steel plate is in contact with the coal pile. A group of bearing seats 111 is provided on the outer side of the bottom plate 110, and each group of bearing seats 111 is composed of two left-right symmetrical bearing seats 111, and each group of bearing seats 111 is rotatably connected to a roller shaft 120, and the two bottom plates 110 are hinged together through the top roller shaft 120.

[0015] A guide plate 112 is respectively provided in the middle of two adjacent groups of bearing seats 111 of the bottom plate 110, and an inclined guide plate 113 is provided on the outer side of the outermost bearing seat 111. Under the guidance of the inclined guide plate 113 and the guide plate 112, the steel cable and the canvas can smoothly pass over the bottom plate 110.

[0016] The outer contour diameter of each bearing seat 111 is larger than the diameter of the roller 120. When the steel cable passes around the device, it will slide between the bearing seats 111 on both sides, which can prevent the steel cable from escaping from the device. The rotating roller 120 can not only isolate the steel cable from the coal pile to prevent the steel cable from sinking into the coal pile, but also convert the sliding friction between the steel cable and the roller 120 into rolling friction, which greatly reduces the friction and reduces the wear of the steel cable.

[0017] The two bottom plates 110 are called bottom plate No. 1 hinge seat 1101 and bottom plate No. 2 hinge seat 1102. A lead screw 150 is arranged between the two bottom plates 110. A hinge seat 115 is arranged on one side of the bottom plate 110. A nut 140 is arranged in the hinge seat 115 of the bottom plate No. 1 hinge seat 1101. A radial nut dumpling shaft 141 is arranged at one section of the nut 140. The nut dumpling shaft 141 is hinged to the hinge seat 115 of the bottom plate No. 1 hinge seat 1101. An adjusting lead screw seat 130 is arranged in the hinge seat 115 of the bottom plate No. 2 hinge seat 1102. One end of the adjusting screw seat 130 is provided with a radial adjusting screw seat shaft 131, and the adjusting screw seat shaft 131 is hinged to the hinge seat 115 of the bottom plate hinge seat No. 2 1102. One end of the screw 150 is rotatably connected to the adjusting screw seat 130, and the screw 150 is threadedly connected to the nut 140. Rotating the screw 150 can adjust the angle between the two bottom plates 110, so that the device can adapt to the inclination angle of the top of different coal piles, and at the same time can adjust the distance between the steel cable and the top of the coal pile, further avoiding contact between the steel cable and the coal pile.

[0018] A fixing rod nut seat 114 is provided on both sides of each base plate 110, and a fixing rod 160 is threadedly connected in each fixing rod nut seat 114. By rotating the fixing rod 160 and inserting the lower part of the fixing rod 160 into the coal pile, the device and the coal pile can be better fixed to prevent the device from shaking when under pressure.

[0019] When the device is used, two mutually hinged bottom plates 110 are placed on the top of the coal pile. The bottom plate 110 is a concave arc-shaped steel plate. The lower part of the curved arc-shaped steel plate contacts the coal pile, so that the steel cable can leave the coal pile on both sides of the coal pile to prevent the steel cable from sinking into the coal pile. The outer contour diameter of each bearing seat 111 is larger than the diameter of the roller 120. When the steel cable passes around the device, it will slide between the bearing seats 111 on both sides to prevent the steel cable from leaving the device. The rotating roller 120 can not only isolate the steel cable from the coal pile to prevent the steel cable from sinking into the coal pile, but also The sliding friction of the roller 120 is converted into rolling friction, which greatly reduces the friction force and the wear of the steel cable. By rotating the lead screw 150 between the two base plates 110, the angle between the two base plates 110 brackets can be adjusted, so that the device can adapt to the inclination angle of the top of different coal piles. At the same time, the distance between the steel cable and the top of the coal pile can be adjusted to further avoid contact between the steel cable and the coal pile. By rotating the fixing rod 160 on the outside of each base plate 110 so that the fixing rod 160 is inserted into the coal pile, the device and the coal pile can be better fixed to prevent the position of the device from shaking when it is under pressure.

Claims

1. A device for preventing a traction cable from falling, characterized in that : It comprises two bottom plates (110) hinged to each other, each bottom plate (110) has a group of bearing seats (111) on the top, each group of bearing seats (111) is rotatably connected to a roller shaft (120), the steel cable passes over the coal pile under the guidance of the bearing seats (111) and the roller shaft (120), a lead screw (150) for adjusting the angle between the two bottom plates (110) is provided between the two bottom plates (110), and a fixing rod (160) is provided on the outer side of each bottom plate (110).

2. A device for preventing a traction cable from falling according to claim 1, characterized in that : The outer diameter of the bearing seat (111) is larger than the diameter of the roller shaft (120).

3. The device for preventing a traction cable from falling according to claim 1 is characterized in that A guide plate (112) is respectively provided in the middle of the two adjacent groups of bearing seats (111), and an oblique guide plate (113) is provided on the outer side of the outermost bearing seat (111).

4. The device for preventing a traction cable from falling according to claim 1 is characterized in that A hinge seat (115) is provided on one side of the base plate (110), a hinge nut (140) is hinged in the hinge seat (115) of the base plate No. 1 hinge seat (1101), an adjustable lead screw seat (130) is hinged in the hinge seat (115) of the base plate No. 2 hinge seat (1102), one side of the lead screw (150) is rotatably connected to the adjustable lead screw seat (130), and the other side of the lead screw (150) is threadedly connected to the nut (140).

5. The device for preventing a traction cable from falling according to claim 1, characterized in that Two symmetrical fixing rod nut seats (114) are provided on the outer side of the bottom plate (110), and the fixing rod (160) is threadedly connected to the fixing rod nut seats (114).

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