A movable modular hydraulic drive wind protection device

Abstract

The utility model discloses a movable modular hydraulic drive windproof device, including base, two walking mechanisms, a plurality of support columns and a plurality of windproof dust suppression nets, the base is strip body, and two walking mechanism mounting chambers are symmetrically arranged to its back side, the walking mechanism includes support frame, and a plurality of wheel stands are arranged in it, and the fixed frame of wheel stand is fixed on the support frame and is equipped with the connecting shaft, makes the movable frame top side of wheel stand rotatory sleeve and is equipped with the walking wheel of bottom side rotation arrangement on the connecting shaft, the mounting frame is opposite to the setting of wheel stand, and the electric control hydraulic push rod is obliquely connected between both, a plurality of support columns are fixed on the top surface of base with interval, a plurality of windproof dust suppression nets are arranged in line and are fixed between every adjacent two support columns respectively, the device can realize that the module device can switch at will between stable placement and flexible movement, can change according to the windproof dust suppression environmental use demand, and assembles at will, and dust suppression effect is good, and the maintenance cost is low.

Description

Technical Field

[0001] This utility model relates to the technical field of wind protection facilities for bulk cargo storage yards such as ports, mines, and thermal power plants, and in particular to a mobile modular hydraulically driven wind protection device. Background Technology

[0002] Windbreak and dust suppression nets, also known as windbreak nets, are environmental protection facilities that reduce dust by lowering wind speed through a porous structure. In recent years, with increasingly stringent environmental protection requirements, windbreak nets have become essential for outdoor construction operations.

[0003] Traditional fixed windbreak nets are widely used in bulk cargo yards such as ports, mines, and thermal power plants. However, they have several drawbacks in practical applications, including: 1) Fixed windbreak nets require customized construction for fixed sites, resulting in high material and labor costs; 2) The fixed installation mode of windbreak nets makes them unable to adapt to the needs of frequent adjustments to the yard's operating positions, resulting in poor flexibility; 3) Long-term exposure to harsh environments can easily lead to material aging, resulting in high maintenance costs and requiring professional maintenance personnel to carry out on-site construction, which is also costly and difficult to maintain; 4) When deploying windbreak nets on-site, trucks directly pull the windbreak frame, increasing costs. Furthermore, due to insufficient structural stability and a high center of gravity, there are significant safety hazards.

[0004] Therefore, based on the shortcomings of the existing technology and the increasing requirements for dust suppression of windbreak nets in recent years due to the gradual improvement of environmental protection requirements, it is necessary to improve the structure of traditional windbreak nets. Utility Model Content

[0005] The purpose of this invention is to provide a mobile, modular, hydraulically driven windbreak device that solves the problems of poor flexibility, low dust suppression efficiency, and insufficient stability and reliability of existing windbreak nets.

[0006] Therefore, the technical solution of this utility model is as follows:

[0007] A movable, modular, hydraulically driven windbreak device includes a base, two traveling mechanisms, multiple support columns, and multiple windbreak and dust suppression nets. The base is a strip-shaped platform with two symmetrically arranged traveling mechanism mounting chambers on its rear side, allowing the two traveling mechanisms to be respectively housed within the two mounting chambers. Each traveling mechanism includes a support frame fixed within its mounting chamber, with multiple wheel frames spaced apart along its length. Each wheel frame includes a movable frame and a fixed frame. The fixed frame is fixed to the support frame, and a connecting shaft passes horizontally through it. The top side of the movable frame is rotatably fitted onto the connecting shaft, allowing it to rotate up and down relative to the fixed frame. The bottom end is equipped with rotatable wheels, and the bottom surface of the mounting chamber of the walking mechanism located below the wheels has an opening that allows the wheels to extend outwards. Multiple mounting brackets are fixed at intervals on the top side of the support frame, which are arranged one-to-one with multiple wheel brackets. An electro-hydraulic push rod is diagonally connected between each opposite mounting bracket and wheel bracket to drive the movable frame to rotate up and down. Multiple support columns are arranged vertically and fixed at intervals and in the center on the top surface of the base along the length of the base. Multiple pieces of windbreak and dust suppression netting are arranged in a line and fixed between each pair of adjacent support columns to form a large-sized windbreak and dust suppression surface.

[0008] Furthermore, the base is a strip-shaped trapezoidal platform, which includes a steel shell with an isosceles trapezoidal longitudinal section; the inner cavity of the shell is divided into a left chamber, a middle chamber and a right chamber by three steel partitions fixed vertically along its width direction. The left chamber and the right chamber are arranged symmetrically with equal volume, and the middle chamber is filled with counterweights.

[0009] Furthermore, the counterweight is a cement stone filling the intermediate cavity, and the cement stone contains a steel cage, which is fixedly connected to the inner wall of the intermediate cavity.

[0010] Furthermore, a hook groove is provided on the front end face of the base, so that the base and the trailer's hook can be detachably connected.

[0011] Furthermore, the length of the movable frame is greater than the height from its top position to the bottom of the traveling mechanism mounting chamber, and the length of the movable frame with multiple wheels decreases gradually from front to back, so that when the front end of the base is connected to the trailer, all three traveling wheels are in contact with the ground; the electro-hydraulic push rod is arranged at an angle of 30° to 45°, so that when the movable frame is flipped down to a vertical position, its bottom traveling wheels extend out to the outside of the traveling mechanism mounting chamber, in a transport state; or, when the movable frame is flipped up to a tilted position, its bottom end can be completely retracted into the traveling mechanism mounting chamber, in a stationary working state.

[0012] Furthermore, the traveling mechanism also includes a controller and a battery installed in the traveling mechanism mounting chamber. The controller is electrically connected to each electro-hydraulic push rod, and the battery is electrically connected to the controller. The controllers of the two traveling mechanisms are also equipped with remote controllers.

[0013] Furthermore, multiple maintenance windows are spaced apart on the top surface of the base corresponding to the installation chamber of each walking mechanism; each maintenance window is equipped with a cover plate, one side of which is connected to the maintenance window by multiple hinges, and the other side of the outer plate is equipped with a handle.

[0014] Furthermore, the support column is detachably fixed to the base via a connecting seat; wherein, the connecting seat includes a cylindrical base fixed to the top surface of the base and a square flange fixed to the top side of the base; the support column includes a column body and a connecting plate fixed to the bottom surface of the column body, and the connecting plate is provided with screw holes that can mate with the square flange on the connecting seat, so that the two are detachably fixedly connected by bolts.

[0015] Furthermore, the columns are made of vertically arranged I-beams, and adjacent columns are arranged with the I-beam slots facing each other, so that the left and right sides of the windbreak and dust suppression net are inserted between two adjacent support columns and fixed to one side edge of the I-beam by several bolts that are spaced from top to bottom.

[0016] Compared with existing technologies, this mobile modular hydraulically driven windbreak device features two built-in walking mechanisms on the rear side of the base, allowing the module to switch freely between stable placement and flexible movement. This meets the need for windbreak nets to adapt to frequent adjustments in yard operation locations, offering high flexibility. Multiple windbreak and dust suppression nets are detachably installed via spaced support columns, ensuring high dust suppression efficiency. Furthermore, they can be customized and replaced in different sizes according to usage requirements, and maintenance can be flexibly performed based on usage conditions, reducing construction and operating costs. In practical applications, they can be freely spliced ​​and used for area enclosure according to different windbreak and dust suppression environmental needs, resulting in a wider range of convenient applications. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the vertical structure of the movable modular hydraulically driven windproof device in an embodiment of this utility model.

[0018] Figure 2 This is a partial perspective view of the base of the movable modular hydraulically driven windproof device in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the supporting column of the movable modular hydraulically driven windproof device in an embodiment of this utility model. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but the following embodiments are by no means intended to limit the present invention.

[0021] See Figure 1 The mobile modular hydraulically driven windproof device includes a base 1, two walking mechanisms 2, seven supporting columns 3, and six windproof and dust-suppressing nets 4.

[0022] The base 1 is a long, trapezoidal platform. Specifically, the trapezoidal platform includes a steel shell with an isosceles trapezoidal longitudinal section and an internal cavity. The internal cavity of the shell is divided into a left chamber, a middle chamber, and a right chamber by three vertically arranged steel partitions along its width. The left and right chambers are symmetrically arranged with equal volumes to ensure the structural balance of the platform and serve as mounting chambers for the two walking mechanisms 2. The middle chamber is a closed chamber with a steel cage of appropriate length arranged axially and centrally, and filled with solidified cement stone to ensure that the base 1 has sufficient wind resistance and support strength. In this embodiment, the middle chamber has a C35 concrete foundation, and a steel cage tied with HRB400 steel bars is arranged within the concrete foundation. The steel cage is pre-centered and welded to the inner wall of the middle chamber before concrete pouring and solidification to ensure that the cement stone and the steel shell form a whole with good structural stability.

[0023] As a preferred technical solution in this embodiment, a tow hook groove 101 is provided on the front end face of the base 1, so that the base 1 can be detachably connected to the tow hook of the trailer, and the device can be transported to a designated location by the trailer. Correspondingly, two walking mechanisms 2 are symmetrically arranged on the rear side of the left and right chambers of the base 1, so as to cooperate with the trailer to move the entire device.

[0024] See Figure 2 Each walking mechanism 2 includes three wheel frames, three electro-hydraulic push rods 203, three mounting brackets 205, and three walking wheels 206 mounted on a support frame 201.

[0025] The support frame 201 consists of two support crossbeams 2011 and four inverted U-shaped support longitudinal beams 2012. The two support crossbeams 2011 are horizontally parallel along the length of the base 1 and are fixed to the inner walls of the two sides of the traveling mechanism mounting chamber. The four inverted U-shaped support longitudinal beams 2012 are evenly spaced along the length of the base 1, and the top two sides of each support longitudinal beam 2012 are fixed to the side walls of the two support crossbeams 2011, while its two bottom ends are fixed to the bottom surface of the traveling mechanism mounting chamber.

[0026] Three wheel frames are spaced apart along the length of the base 1 within the support frame 201 and are respectively positioned between each pair of adjacent inverted U-shaped support longitudinal beams 2012. Each wheel frame includes a movable frame 202 and a fixed frame 204. The fixed frame 204 is fixed between two support crossbeams 2011 of the support frame 201, and a connecting shaft is horizontally inserted through it. The top side of the movable frame 202 is rotatably sleeved on the connecting shaft, allowing it to rotate up and down relative to the fixed frame 204. Three traveling wheels 206 are rotatably positioned on the bottom side of the three movable frames 202, and a traveling wheel telescopic opening is provided on the bottom surface of the base below the traveling wheels 206. The length of the movable frame 202 is greater than the vertical height from its top to the bottom of the chamber. When the movable frame 202 is flipped downwards to a vertical position, its bottom wheels 206 can extend outwards from the bottom opening of the travel mounting cavity and contact the ground, thus facilitating transport with a trailer. When the movable frame 202 is flipped upwards at a certain angle, its bottom wheels 206 can be completely retracted into the travel mounting cavity, resulting in a stationary working state. In practical applications, because the height difference between the front end of the base 1 and the trailer causes the front end of the base 1 to rise during transport, the base 1 is tilted with a higher front and lower rear. Therefore, the length of the movable frame 202 with three wheels decreases gradually from front to back to ensure that all three wheels 206 are in contact with the ground during transport.

[0027] Three mounting brackets 205 are fixed on three supporting longitudinal beams 2012 and are arranged at intervals relative to the three wheel frames. Three electro-hydraulic push rods 203 are obliquely arranged between each opposite wheel frame and mounting bracket 205 with the cylinder end higher and the push rod end lower. The cylinder end is hinged to the top side of the mounting bracket 205 and the movable push rod end is hinged to the movable frame 202. In actual application, the electro-hydraulic push rod 203 extends to drive the movable frame 202 to be set vertically, and conversely, the electro-hydraulic push rod 203 retracts to drive the movable frame 202 to flip upward and be set obliquely.

[0028] In this embodiment, due to the large overall weight of the device, the traveling wheels 206 are preferably heavy-duty tires, and the load-bearing capacity of each traveling wheel 206 is ≥3.5 tons. The electro-hydraulic push rod 203 adopts an electro-hydraulic push rod with a hydraulic cylinder diameter of 100mm and a stroke of 200mm, and is arranged at an inclination of 30° to ensure that its lifting efficiency meets the requirement of: single lifting time ≤2 minutes.

[0029] As a preferred technical solution in this embodiment, since wheel frames are provided on the adjacent sides of the two mounting brackets 205, the two mounting brackets 205 are preferably fixedly connected to the fixed bracket 204 located on the adjacent side, so as to further improve the overall structural connection strength of the walking mechanism 2.

[0030] Each traveling mechanism 2 also includes a controller 207 and a battery, preferably located at the front end of the traveling mechanism mounting chamber. The controller 207 is electrically connected to each electro-hydraulic push rod 203 within the traveling mechanism 2 to synchronously control the outward extension or inward retraction of all electro-hydraulic push rods 203. The battery is electrically connected to the controller 207 for power supply. The controllers 207 of both traveling mechanisms are preferably equipped with remote controllers to support remote operation by the trailer driver. In this embodiment, the battery is a 24V 200Ah lead-acid battery, which can provide a 7.2-day driving range for 5 lifting operations per day.

[0031] As a preferred technical solution of this embodiment, three maintenance windows are provided at intervals on the top surface of the base 1 corresponding to the mounting chamber of each walking mechanism, so as to inspect and maintain the two walking mechanisms 2 installed in the left chamber and the right chamber respectively; each maintenance window is provided with a cover plate 102, one side of which is connected to the maintenance window by three hinges 103, and two handles 104 are symmetrically provided on the outer plate of the other side to facilitate the opening and closing of the cover plate.

[0032] In practical applications, under normal conditions, the wheels 206 of the two walking mechanisms 2 of the device are retracted into their respective walking mechanism mounting chambers, keeping the base 1 in a stationary position. When the device needs to be transported, the trailer driver first connects the trailer hook to the hook slot on the front end face of the base 1, causing the base 1 to be tilted due to the front end being lifted. Then, driven by the electro-hydraulic push rod 203, the wheels 206 of the two walking mechanisms 2 extend downward to the outside of the base 1, supporting the rear end of the base 1. At this time, the base 1 is in contact with the ground only through the wheels 206, and the trailer driver can start the trailer to transport the device to the designated location.

[0033] As a preferred technical solution of this embodiment, in order to further increase the weight of the base 1, its left and right chambers can be separated into a front closed chamber and a rear mounting chamber by built-in partitions, respectively. At this time, the rear mounting chamber serves as the mounting chamber for the walking mechanism 2, while the front closed chamber can be the same as the middle chamber, and is also filled with solidified cement stone with a steel cage skeleton in its inner cavity.

[0034] See Figure 3 Seven connecting seats 5 are provided at equal intervals from the front end to the rear end and in the center on the top of the base 1. Each connecting seat 5 includes a cylindrical base fixed to the top surface of the base 1 and a square flange fixed horizontally to the top side of the base. The cylindrical base is welded and fixed to the base 1, and the square flange is welded and fixed to the cylindrical base.

[0035] See Figure 1 and Figure 3Seven support columns 3 are vertically installed on seven connecting seats 5, and the width between each adjacent support column 3 is adapted to the width of the windbreak and dust suppression net 4, so that six pieces of windbreak and dust suppression net 4 are respectively installed between each two adjacent support columns 3; wherein, each support column 3 includes a column body 301, and a connecting base plate 302 is horizontally fixed on the bottom surface; the height of the column body 301 is adapted to the height of the windbreak and dust suppression net 4, and bolt holes that mate with the square flanges on the connecting seats 5 are opened on both sides of the connecting base plate 302, so that each support column 3 can be fixedly connected to each connecting seat 5 by bolts that are sequentially inserted into the connecting base plate 302 and the square flange. In this embodiment, the column 301 is made of I-beams, and adjacent columns 301 are arranged with the I-beam slots facing each other. This not only allows the left and right sides of the windbreak and dust suppression net 4 to be inserted between two adjacent columns 301, but also allows each side of the windbreak and dust suppression net 4 to be quickly and securely connected to one side edge of the I-beam by bolts that are spaced from top to bottom. The connecting base plate 302 is made of a square steel plate with the same size as the directional flange. Preferably, a top plate of the same size as the connecting base plate 302 is welded and fixed on the top side of the column 301 to enhance the overall structural strength of the supporting column 3.

[0036] The windbreak and dust suppression net 4 uses a rigid mesh sheet with a wavy shape along its length. Specifically, it uses a 1.2mm thick galvanized aluminum spiral perforated plate. The perforated plate is evenly distributed and covered with dust suppression holes with a diameter of 31mm. The perforation rate of the dust suppression holes on the perforated plate is 30%, the tensile strength is ≥200MPa, and the air permeability is 40%, ensuring effective dust suppression.

[0037] Tests showed that the dust suppression rate of the mobile modular hydraulically driven windbreak device in this embodiment is 95.2% according to the standard GB / T15432-2020. In the wind resistance test, it meets the requirement that the base void area kb=0.586 and does not overturn under a wind speed of level 10 (24.5m / s). More importantly, in terms of economic applicability, this device reduces the initial investment by 40% and the annual maintenance cost by 60% compared with the fixed windbreak net. It also meets the need for the windbreak net to adapt to the frequent adjustment of the yard operation position, and has high flexibility.

[0038] This portable, modular, hydraulically driven windproof device has the following two usage modes:

[0039] 1) Using trailers, multiple mobile modular hydraulically driven windbreak devices are transported to designated windbreak and dust suppression locations, arranged in a line and connected one after another to form a windbreak and dust suppression barrier of a specified length.

[0040] 2) Using trailers, multiple mobile modular hydraulically driven windbreak devices are transported to designated windbreak and dust suppression locations and arranged circumferentially and connected in sequence according to the encirclement requirements to form a closed ring-shaped windbreak and dust suppression area.

[0041] In either usage mode 1) or usage mode 2), adjacent devices can be simply connected together, or two adjacent support columns 3 located at the ends can be welded and fixedly connected to form a whole, enhancing the overall strength of the windproof structure. Alternatively, they can be connected to the ground with chains to increase the fixing strength between the windproof structure and the ground, meeting the application requirements in the environmental scenario.

Claims

1. A mobile, modular, hydraulically driven windproof device, characterized in that, The system includes a base (1), two walking mechanisms (2), multiple supporting columns (3), and multiple pieces of windbreak and dust suppression netting (4). The base (1) is a strip-shaped platform with two symmetrically arranged walking mechanism mounting chambers on its rear side, so that the two walking mechanisms (2) are respectively installed in the two walking mechanism mounting chambers. The walking mechanism (2) includes a support frame (201) fixed in the walking mechanism mounting chamber, with multiple wheel frames arranged at intervals along its length. Each wheel frame includes a movable frame (202) and a fixed frame (204). The fixed frame (204) is fixed on the support frame (201), and a connecting shaft is horizontally inserted on it. The top side of the movable frame (202) is rotatably sleeved on the connecting shaft, so that it can rotate up and down relative to the fixed frame (204). The bottom end of the movable frame (202) is rotatably equipped with a walking mechanism. The wheel (206) is provided with an opening on the bottom surface of the walking mechanism mounting chamber located below the walking wheel (206) to allow the walking wheel (206) to extend outward; multiple mounting brackets (205) are fixed at intervals on the top side of the support frame (201), which are respectively arranged opposite to multiple wheel frames, and an electro-hydraulic push rod (203) is obliquely connected between each opposite mounting bracket (205) and the wheel frame, so as to drive the movable frame (202) to rotate up and down through the electro-hydraulic push rod (203); multiple support columns (3) are arranged vertically and fixed at intervals and in the center on the top surface of the base (1) along the length direction of the base (1); multiple windproof and dust suppression nets (4) are arranged in a line and fixed between each two adjacent support columns (3) to form a large-sized windproof and dust suppression surface.

2. The movable modular hydraulically driven windproof device according to claim 1, characterized in that, The base (1) is a strip-shaped trapezoidal platform, which includes a steel shell with an isosceles trapezoidal longitudinal section; the inner cavity of the shell is divided into a left chamber, a middle chamber and a right chamber by three steel partitions fixed vertically along its width direction. The left chamber and the right chamber are arranged symmetrically with equal volume, and the middle chamber is filled with counterweights.

3. The movable modular hydraulically driven windproof device according to claim 2, characterized in that, The counterweight is a cement stone filling the intermediate cavity, and the cement stone contains a steel cage, which is fixedly connected to the inner wall of the intermediate cavity.

4. The movable modular hydraulically driven windproof device according to claim 1, characterized in that, A hook groove (101) is provided on the front end face of the base (1) so that the base (1) can be detachably connected to the hook of the trailer.

5. The movable modular hydraulically driven windproof device according to claim 1, characterized in that, The length of the movable frame (202) is greater than the height from its top position to the bottom of the traveling mechanism mounting chamber, and the length of the multiple wheeled movable frame (202) decreases gradually from front to back, so that when the front end of the base (1) is connected to the trailer, all three traveling wheels (206) are in contact with the ground; the electro-hydraulic push rod (203) is arranged at an angle of 30° to 45°, so that when the movable frame (202) is flipped down to a vertical position, its bottom traveling wheel (206) extends out to the outside of the traveling mechanism mounting chamber, and is in a transport state; or, when the movable frame (202) is flipped up to a diagonal position, its bottom end can be completely retracted into the traveling mechanism mounting chamber, and is in a stationary working state.

6. The movable modular hydraulically driven windproof device according to claim 1, characterized in that, The walking mechanism (2) also includes a controller (207) and a battery installed in the walking mechanism mounting chamber. The controller (207) is electrically connected to each electro-hydraulic push rod (203), and the battery is electrically connected to the controller (207). The controllers (207) of the two walking mechanisms (2) are also equipped with remote controllers.

7. The movable modular hydraulically driven windproof device according to claim 1, characterized in that, Multiple maintenance windows are spaced apart on the top surface of the base (1) corresponding to the installation chamber of each walking mechanism; each maintenance window is provided with a cover plate (102), one side of the cover plate (102) is connected to the maintenance window by multiple hinges (103), and the other side of the outer plate is provided with a handle (104).

8. The movable modular hydraulically driven windproof device according to claim 1, characterized in that, The support column (3) is detachably fixed to the base (1) via the connecting seat (5); wherein, the connecting seat (5) includes a cylindrical base fixed to the top surface of the base (1) and a square flange fixed to the top side of the base; the support column (3) includes a column body (301) and a connecting plate (302) fixed to the bottom surface of the column body (301), and the connecting plate (302) is provided with a screw hole that can cooperate with the square flange on the connecting seat (5), so that the two are detachably fixedly connected by bolts.

9. The movable modular hydraulically driven windproof device according to claim 8, characterized in that, The column (301) is made of vertically arranged I-beams, and adjacent columns (301) are arranged in a way that the I-beam slots are opposite each other, so that the left and right sides of the windbreak and dust suppression net (4) are inserted between two adjacent support columns (3) and fixed to one side edge of the I-beam by several bolts that are spaced from top to bottom.

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