Automatic windproof braking device of portal crane

Abstract

The invention relates to an automatic windproof braking device of a portal crane, which solves the problem that a bearing wheel needs to be manually locked, the inner side of the bearing wheel is fixedly connected with one side of an inner gear ring, and a pressure spring and a piston rod are arranged at two symmetrical ends of a U-shaped shell; the upper end of the push-pull rod is hinged to the upper end of the supporting plate through a second hinge shaft, the other end of the tension spring is connected with one end of the pull rod, and the other end of the pull rod is hinged to the lower end of the push-pull rod through a third hinge shaft. The short edge of the rectangular frame is fixedly connected with one diameter of the same-diameter cylinder of the symmetrical hemispherical piston, the same-diameter cylinder of the hemispherical piston is in movable fit with the middle of the U-shaped shell, and the middle of the U-shaped shell is provided with a left vent hole and a right vent hole which are in sealing fit with the outer wall of the long edge of the rectangular frame. The rectangular frame moves left and right in the U-shaped shell, air is continuously inflated into the two sides of the cavity of the U-shaped shell, and the bearing wheels cannot be clamped when the push-pull rod is lifted. When the machine is stopped, air does not enter the machine any more, the pressure release valve continuously exhausts air under the action of the pressure spring, and the push-pull rod clamps the bearing wheel.

Description

Technical Field

[0001] The present invention specifically relates to an automatic windproof braking device for a gantry crane, and is particularly relevant to a gantry crane installed outdoors and often in a windy environment. Background Art

[0002] At present, the wind protection measures of gantry cranes mainly rely on electronic warning devices, which convey wind conditions to operators through sound and light. Operators decide whether to shut down the crane for wind protection based on their experience. In wind protection operations, they need to use external devices to fix the tracks when the wind is strong and remove them in time after the wind subsides. This process can take as short as half an hour or as long as one or two hours. As a result, normal construction is seriously disturbed, and the requirements for operators are extremely high. If the operator is negligent and fails to fix the tracks in time, the crane may tilt or even collapse, causing a major safety accident. This is an urgent problem that needs to be solved.

[0003] Traditional gantry crane wind protection operations rely on manual operation and experience judgment. Not only is the operation process cumbersome and time-consuming, seriously interfering with the normal construction progress, but it also requires the operator's attention and reaction speed to be extremely high. A slight negligence may cause the crane to tilt or collapse in strong winds due to failure to take wind protection measures in time, which in turn causes serious safety accidents and huge losses to human life and property. Summary of the invention

[0004] The purpose of the present invention is to provide an automatic windproof brake device for a gantry crane which can be automatically locked when the load-bearing wheels stop moving.

[0005] The object of the present invention is achieved in that: The automatic windproof brake device for gantry crane, the inner side of the load-bearing wheel 1 is fixedly connected to one side of the concentric inner gear ring 30, the other side of the inner gear ring 30 is fixedly connected to the vertical plate of the connecting plate 36, the outer side of the vertical plate of the connecting plate 36 is fixedly connected to the rectangular parallelepiped, the left side of the rectangular parallelepiped is fixedly connected to the middle part of the U-shaped shell 23, the symmetrical ends of the U-shaped shell 23 are provided with a pressure spring 21 and a piston rod 20, the first piston at one end of the piston rod 20 presses the pressure spring 21, the other end of the piston rod 20 extends out of the upper end of the U-shaped shell 23 and passes through the first The hinge shaft 19 is hinged to the arc-shaped push-pull rod 8, the upper end of the push-pull rod 8 is hinged to the upper end of the support plate 7 through the second hinge shaft 4, the opposite sides of the rectangular parallelepiped of the connecting plate 36 are respectively connected to one end of the symmetrical tension spring 10, the other end of the tension spring 10 is connected to one end of the pull rod 11, and the other end of the pull rod 11 is hinged to the lower end of the push-pull rod 8 through the third hinge shaft 12, the long side of the rectangular frame 17 has a horizontal through groove 33 and a symmetrical inner rack, the short side of the rectangular frame 17 is connected to the symmetrical second piston, and the second piston is connected to the U-shaped housing 23 The middle part of the shaped housing 23 is dynamically matched, the second piston is provided with a pressure relief valve 15, the middle part of the shaped housing 23 is provided with left and right vent holes 18 which are sealed with the outer wall of the long side of the rectangular frame 17, the inner teeth of the inner gear ring 30 are matched with four driving gears 25, the four driving gears 25 are matched with a driven gear 27, the four driving gears 25 are respectively fixedly connected with the first shaft 29, one end of the first shaft 29 is dynamically matched with the first hole of the load-bearing wheel 1 and the holes on the four corners of the connecting frame 28, the connecting frame 28 is fixedly connected with the inner side of the load-bearing wheel 1, and the other end of the first shaft 29 The second shaft 26 is fixedly connected to the driven gear 27, and the second shaft 26 is movably matched with the second hole on the center of the load-bearing wheel 1. The second shaft 26 passes through the hole on the connecting plate 36, the hole in the middle part of the U-shaped shell 23, and is fixedly connected to the half gear 16 and movably matched with the second hole of the support plate 7. The teeth on the half circumference of the half gear 16 respectively cooperate with the symmetrical internal racks of the long side of the rectangular frame 17.

[0006] The second piston is a shell composed of a hemispherical piston 39 and a cylinder of the same diameter. The cylinder of the same diameter is dynamically matched with the middle of the U-shaped shell 23. The outer surface of the cylinder of the same diameter is provided with a sealing ring 35 which is sealed with the middle of the U-shaped shell 23. The end of the hemispherical piston 39 is provided with a pressure relief valve 15.

[0007] The long sides of the rectangular frame 17 are slidably matched with the groove in the middle of the U-shaped housing 23 .

[0008] The U-shaped housing 23 is composed of two symmetrical left and right parts connected as one body by a flange 24 .

[0009] Direct processing on site greatly simplifies the process, eliminating the need for complicated off-site processing. It is easy to operate and can be mastered by staff without complicated training, which effectively reduces the difficulty of use. In terms of cost control, the low processing cost makes it extremely cost-effective and will not cause a heavy financial burden to users. In addition, it is reusable, which further enhances its economic efficiency.

[0010] More importantly, the invention successfully overcomes the major safety problems faced by gantry cranes during operation. When encountering sudden strong winds, it can ensure that the crane remains stable and effectively avoid tilting and collapse accidents caused by strong winds. This excellent safety guarantee capability stems from its safe and reliable design and high feasibility at the technical level. With this device, the safety of gantry cranes operating in windy environments will be greatly improved, laying a solid safety line for the smooth progress of related operations.

[0011] The present invention minimizes the impact on construction and reduces the complexity of human operation. It is tightly fixed to the track through a specially designed locking structure, and there is no need for manual operation of external devices. Moreover, the braking state can be automatically released when the load-bearing wheel is started. The entire process does not require long-term intervention by operators, which greatly reduces the risks caused by human misjudgment or untimely operation. The cost of this device should not be too high, and its structure and principle should be simple and clear, easy to install and maintain, so as to improve construction efficiency while ensuring safety, and effectively avoid a series of problems caused by cumbersome windproof operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is the front view of the present invention.

[0013] Figure 2 for Figure 1 Rear view of.

[0014] Figure 3 This is the internal structure diagram of the present invention.

[0015] Figure 4 for Figure 1 Bottom view of .

[0016] Figure 5 This is a top view of the book.

[0017] Figure 6 This is the left view of the book.

[0018] Figure 7 This is a structural diagram of the inner gear ring of the present invention.

[0019] Figure 8 It is a structural diagram of the rectangular frame and hemispherical piston of the present invention.

[0020] Fig. 9 for Figure 8 Top view of the .

[0021] Fig.10 for Figure 8 Right view of . DETAILED DESCRIPTION

[0022] The automatic windproof brake device for gantry crane, the inner side of the load-bearing wheel 1 is fixedly connected to one side of the concentric inner gear ring 30, the other side of the inner gear ring 30 is fixedly connected to the vertical plate of the connecting plate 36, the outer side of the vertical plate of the connecting plate 36 is fixedly connected to the rectangular parallelepiped, the left side of the rectangular parallelepiped is fixedly connected to the middle part of the U-shaped shell 23, the symmetrical ends of the U-shaped shell 23 are provided with a pressure spring 21 and a piston rod 20, the first piston at one end of the piston rod 20 presses the pressure spring 21, the other end of the piston rod 20 extends out of the upper end of the U-shaped shell 23 and passes through the first The hinge shaft 19 is hinged to the arc-shaped push-pull rod 8, the upper end of the push-pull rod 8 is hinged to the upper end of the support plate 7 through the second hinge shaft 4, the opposite sides of the rectangular parallelepiped of the connecting plate 36 are respectively connected to one end of the symmetrical tension spring 10, the other end of the tension spring 10 is connected to one end of the pull rod 11, and the other end of the pull rod 11 is hinged to the lower end of the push-pull rod 8 through the third hinge shaft 12, the long side of the rectangular frame 17 has a horizontal through groove 33 and a symmetrical inner rack, the short side of the rectangular frame 17 is connected to the symmetrical second piston, and the second piston is connected to the U-shaped housing 23 The middle part of the shaped housing 23 is dynamically matched, the second piston is provided with a pressure relief valve 15, the middle part of the shaped housing 23 is provided with left and right vent holes 18 which are sealed with the outer wall of the long side of the rectangular frame 17, the inner teeth of the inner gear ring 30 are matched with four driving gears 25, the four driving gears 25 are matched with a driven gear 27, the four driving gears 25 are respectively fixedly connected with the first shaft 29, one end of the first shaft 29 is dynamically matched with the first hole of the load-bearing wheel 1 and the holes on the four corners of the connecting frame 28, the connecting frame 28 is fixedly connected with the inner side of the load-bearing wheel 1, and the other end of the first shaft 29 The second shaft 26 is fixedly connected to the driven gear 27, and the second shaft 26 is movably matched with the second hole on the center of the load-bearing wheel 1. The second shaft 26 passes through the hole on the connecting plate 36, the hole in the middle part of the U-shaped shell 23, and is fixedly connected to the half gear 16 and movably matched with the second hole of the support plate 7. The teeth on the half circumference of the half gear 16 respectively cooperate with the symmetrical internal racks of the long side of the rectangular frame 17.

[0023] The second piston is a shell composed of a hemispherical piston 39 and a cylinder of the same diameter. The cylinder of the same diameter is dynamically matched with the middle of the U-shaped shell 23. The outer surface of the cylinder of the same diameter is provided with a sealing ring 35 which is sealed with the middle of the U-shaped shell 23. The end of the hemispherical piston 39 is provided with a pressure relief valve 15.

[0024] The long sides of the rectangular frame 17 are slidably matched with the groove in the middle of the U-shaped housing 23 .

[0025] The U-shaped housing 23 is composed of two symmetrical left and right parts connected as one body by a flange 24 .

[0026] The pressure relief valve 15 is a pressure valve with a fixed pressure relief value. The rectangular frame 7 moves left and right in the U-shaped housing 23, and continuously inflates the two sides of the cavity through the left and right vents 18 (one-way air inlets). When the pressure relief value of the pressure relief valve 15 is reached, the pressure is released. There are two situations: 1. When the gantry crane is moving, the rectangular frame 17 continuously inflates the two sides of the cavity of the C-shaped shell 23 through the vent hole 18 (one-way air inlet) in the transmission mechanism shell 23, and releases the pressure when the pressure relief value of the pressure relief valve is reached, ensuring that there is a certain pressure in the cavities at both ends of the C-shaped shell 23, and the push-pull rod 8 will not get stuck when it is lifted; 2. When the gantry crane is shut down, since there is no more air intake, under the action of the pressure spring 21, the pressure relief valve 15 continuously discharges air, and the push-pull rod 8 jams the load-bearing wheel 1.

Claims

1. Automatic windproof brake device for gantry crane, characterized in that: The inner side of the load-bearing wheel (1) is fixedly connected to one side of a concentric inner gear ring (30), the other side of the inner gear ring is fixedly connected to the vertical plate of the connecting plate (36), the outer side of the vertical plate of the connecting plate is fixedly connected to the rectangular parallelepiped, the left side of the rectangular parallelepiped is fixedly connected to the middle part of the U-shaped shell (23), and the symmetrical ends of the U-shaped shell are provided with a pressure spring (21) and a piston rod (20), a first piston at one end of the piston rod presses the pressure spring, and the other end of the piston rod extends out of the upper end of the U-shaped shell and is connected to the arc-shaped push-pull joint through the first hinge shaft (19). The upper end of the push-pull rod is hinged to the upper end of the support plate (7) through the second hinge shaft 4, the opposite sides of the rectangular parallelepiped of the connecting plate are respectively connected to one end of a symmetrical tension spring (10), the other end of the tension spring is connected to one end of the pull rod (11), and the other end of the pull rod is hinged to the lower end of the push-pull rod through the third hinge shaft (12), the long side of the rectangular frame (17) has a horizontal through groove (33) and a symmetrical internal rack, the short side of the rectangular frame is connected to the symmetrical second piston, and the second piston is connected to the middle of the U-shaped shell The first piston is provided with a pressure relief valve (15), the middle part of the U-shaped housing is provided with left and right vent holes (18) which are sealed with the outer wall of the long side of the rectangular frame, the inner teeth of the inner gear ring (30) are matched with four driving gears (25), the four driving gears are matched with a driven gear (27), the four driving gears are respectively fixedly connected with the first shaft (29), one end of the first shaft is movably matched with the first hole of the load-bearing wheel and the holes on the four corners of the connecting frame (28), the connecting frame is fixedly connected with the inner side of the load-bearing wheel, the first shaft (29 ) is movably matched with the first hole on the support plate through the hole on the connecting plate, the hole on the U-shaped shell and the horizontal through groove on the rectangular frame, the second shaft (26) is fixedly connected to the driven gear (27), the second shaft is movably matched with the second hole on the center of the bearing wheel, the second shaft (26) is fixedly connected to the half gear (16) through the hole on the connecting plate, the hole in the middle of the U-shaped shell and the second hole on the support plate (7), and the teeth on the half circumference of the half gear are respectively matched with the symmetrical internal racks on the long side of the rectangular frame.

2. The automatic wind-proof brake device for gantry crane according to claim 1 is characterized in that: The second piston is a shell composed of a hemispherical piston (39) and a cylinder of the same diameter. The cylinder of the same diameter is dynamically matched with the middle part of the U-shaped shell (23). The outer surface of the cylinder of the same diameter is provided with a sealing ring (35) which is sealed with the middle part of the U-shaped shell. The end of the hemispherical piston is provided with a pressure relief valve (15).

3. The automatic wind-proof brake device for gantry crane according to claim 1 is characterized in that: The long side of the rectangular frame (17) is slidably matched with the groove in the middle of the U-shaped housing (23).

4. The automatic wind-proof brake device for gantry crane according to claim 1 is characterized in that: The U-shaped housing (23) consists of two symmetrical left and right parts connected as one body via a flange (24).

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