Vehicle-mounted weighing device of dumper for strip mine

Abstract

The utility model discloses a dumper vehicle-mounted weighing device for an open-pit mine, which relates to the technical field of vehicle-mounted weighing devices and comprises a mining dumper rear beam frame, a vehicle-mounted weighing support is arranged at the bottom of the mining dumper rear beam frame, a plurality of connecting bolts are fixedly connected to the top of the vehicle-mounted weighing support, and the connecting bolts are fixedly connected to the bottom of the mining dumper rear beam frame. The vehicle-mounted weighing support is fixedly installed at the bottom of a rear beam frame of the mining dump truck through connecting bolts, and weighing pressure plates are arranged on the left side and the right side of the top of the vehicle-mounted weighing support. By starting the motor, the first bevel gear can drive the second bevel gear to rotate, so that the first screw rod can be driven to rotate, the extending sliding plate can be driven to slide along the limiting column, the lifting sliding column can be pulled through the pulling rod to slide along the supporting sleeve column, and therefore when the mining dump truck runs, the lifting sliding column is driven to slide along the supporting sleeve column. And the weighing pressure plate is withdrawn, so that the weighing pressure plate is prevented from being damaged, and the vehicle-mounted weighing device of the mining dump truck is convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of vehicle-mounted weighing devices, specifically to a vehicle-mounted weighing device for open-pit mine dump trucks. Background Technology

[0002] Mining dump trucks are a type of dump truck used in open-pit mines for transporting rocks, ore, or coal. They have short transport ranges and heavy loads, and are often loaded with large electric shovels or hydraulic shovels. They travel between the mining point and the unloading point. After loading, the weight of the loaded ore needs to be weighed to facilitate the calculation of daily transport volume.

[0003] The existing technology has the following problems:

[0004] Existing weighing devices on open-pit mine dump trucks have fixed positions. When the dump truck moves, the vehicle body will bump, which can easily cause significant pressure on the weighing device, making it prone to damage. In addition, the existing weighing devices are inconvenient to disassemble and assemble, and it is not convenient to repair or replace the weighing pressure plate when it is damaged. Utility Model Content

[0005] This utility model provides an on-board weighing device for open-pit mine dump trucks to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] An on-board weighing device for an open-pit mine dump truck includes a rear beam frame of the dump truck. A weighing bracket is provided at the bottom of the rear beam frame. Several connecting bolts are fixedly connected to the top of the weighing bracket. The weighing bracket is fixedly installed at the bottom of the rear beam frame of the dump truck by the connecting bolts. Weighing pressure plates are provided on both the left and right sides of the top of the weighing bracket.

[0008] The vehicle-mounted weighing bracket includes a connecting bracket, which is set at the bottom of the rear beam of the mining dump truck. The connecting bolts are fixedly connected to the top of the rear beam of the mining dump truck. Support sleeves are fixedly connected to the top left and right sides of the top of the connecting bracket. A lifting slide column is slidably inserted into the top of the inner surface of the support sleeve column. The weighing pressure plate is fixedly installed on the top of the lifting slide column.

[0009] A motor is fixedly connected to the top center of the connecting bracket. A movable groove is formed in the center of the connecting bracket. The output shaft of the motor passes through the movable groove and is fixedly connected to a bevel gear. Bevel gears are meshed on both sides of the outer surface of bevel gear one. A first screw is fixedly connected to the side of bevel gear two away from bevel gear one. Sliding grooves are formed at the left and right ends of the connecting bracket. The end of the first screw away from bevel gear two passes through the sliding groove and is threaded to an extension slide plate on its outer surface. A pulling rod is movably hinged to the top of the extension slide plate. The top of the pulling rod is movably hinged to the outer surface of the lifting slide column.

[0010] A further improvement of this utility model is that: the front and rear sides of the end of the extension slide plate near the first screw are slidably inserted with limiting posts, and the end of the limiting post away from the extension slide plate is fixedly connected to the inner wall of the sliding groove.

[0011] A further improvement of this utility model is that: a plug-in groove is provided at the bottom center of the weighing pressure plate, and four fixing slots are arranged in a ring array on the inner surface of the plug-in groove; a plug-in plate is fixedly connected to the top of the lifting slide column, and the plug-in plate is slidably inserted into the inside of the plug-in groove.

[0012] A further improvement of the present invention is that: a knob is movably connected to the upper front and rear sides of the outer surface of the lifting slide column; a movable groove 2 is opened in the upper interior of the lifting slide column; and a bevel gear 3 is fixedly connected to the end of the knob near the lifting slide column that passes through the interior of the movable groove 2.

[0013] A further improvement of the present invention is that a bevel gear four is meshed above the outer surfaces of the two bevel gear threes, and a second screw is fixedly connected to the top of the bevel gear four.

[0014] A further improvement of the present invention is that: the plug plate has a cross groove inside, and guide slopes are provided at the top and bottom of the cross groove; the top of the second screw penetrates into the interior of the cross groove and the outer surface is threaded with a threaded sliding plate.

[0015] A further improvement of this utility model is that: four push rods are movably hinged to the outer surface of the threaded slide plate in an annular array, and a fixed plate is movably hinged to the end of the push rod away from the threaded slide plate.

[0016] A further improvement of this utility model is that the outer surface of the fixed plate matches and is slidably connected to the guide slope of the cross groove, and the end of the fixed plate away from the push rod extends into the interior of the fixed groove.

[0017] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0018] 1. This utility model provides an on-board weighing device for open-pit mine dump trucks. Through the cooperation of the connecting bracket, motor, bevel gear one, bevel gear two, first screw, extension slide plate, limiting post, pull rod, support sleeve, and lifting slide column, starting the motor enables bevel gear one to drive bevel gear two to rotate, thereby driving the first screw to rotate and causing the extension slide plate to slide along the limiting post. This allows the pull rod to pull the lifting slide column to slide along the support sleeve, thus retracting the weighing pressure plate during the operation of the mine dump truck, preventing damage to the weighing pressure plate and facilitating the use of the on-board weighing device for mine dump trucks.

[0019] 2. This utility model provides a weighing device for open-pit mine dump trucks. Through the cooperation of a plug-in plate, a knob, bevel gear three, bevel gear four, a second screw, a threaded sliding plate, a push rod, and a fixing plate, the fixing plate can be inserted into the fixing slot to fix the weighing pressure plate. When disassembling, rotating the knob causes bevel gear three to drive bevel gear four to rotate, which in turn causes the second screw to drive the threaded sliding plate to slide. This allows the fixing plate to be pulled back by the push rod, enabling the weighing pressure plate to be removed. This facilitates the repair and replacement of the weighing pressure plate when it malfunctions, making the use of the weighing device for mine dump trucks more convenient. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the structure of the vehicle-mounted weighing bracket of this utility model;

[0022] Figure 3 This is a cross-sectional structural diagram of the connecting bracket of this utility model;

[0023] Figure 4 This is a schematic diagram of the lifting slide column of this utility model;

[0024] Figure 5 This is a cross-sectional structural diagram of the lifting slide column of this utility model.

[0025] In the diagram: 1. Rear beam frame of mining dump truck; 2. Vehicle-mounted weighing bracket; 21. Connecting bracket; 211. Motor; 212. Bevel gear one; 213. Bevel gear two; 214. First screw; 215. Extension slide plate; 216. Limiting post; 217. Pull rod; 22. Support sleeve post; 23. Lifting slide column; 231. Insert plate; 232. Knob; 233. Bevel gear three; 234. Bevel gear four; 235. Second screw; 236. Threaded slide plate; 237. Push rod; 238. Fixing plate; 3. Connecting bolt; 4. Weighing pressure plate; 41. Insert slot; 42. Fixing slot. Detailed Implementation

[0026] To make the technical means, creative features, objectives, and effects of this utility model easier to understand, the following describes this utility model in conjunction with specific embodiments:

[0027] like Figure 1-3As shown, this utility model provides a vehicle-mounted weighing device for open-pit mine dump trucks, including a rear beam frame 1 of the mine dump truck. A vehicle-mounted weighing bracket 2 is installed at the bottom of the rear beam frame 1. Several connecting bolts 3 are fixedly connected to the top of the vehicle-mounted weighing bracket 2. Nuts are provided on the outer surface of the connecting bolts 3. When installing the vehicle-mounted weighing bracket 2 onto the rear beam frame 1 of the mine dump truck, holes are first drilled in the rear beam frame 1 so that the connecting bolts 3 on the vehicle-mounted weighing bracket 2 pass through the holes. Then, the nuts are tightened, thereby completing the weighing process. The connection and fixing of the connecting bolts 3 and the vehicle-mounted weighing bracket 2 facilitates the installation of the vehicle-mounted weighing device. The vehicle-mounted weighing bracket 2 is fixedly installed at the bottom of the rear beam frame 1 of the mining dump truck by the connecting bolts 3. Weighing pressure plates 4 are provided on both the left and right sides of the top of the vehicle-mounted weighing bracket 2. The vehicle-mounted weighing bracket 2 includes a connecting bracket 21, which is located at the bottom of the rear beam frame 1 of the mining dump truck. The connecting bolts 3 are fixedly connected to the top of the rear beam frame 1 of the mining dump truck. Support sleeves 22 are fixedly connected to both the left and right sides of the top of the connecting bracket 21. A lifting slide column 23 is slidably inserted into the top of the inner surface of the support column 22. The weighing pressure plate 4 is fixedly installed on the top of the lifting slide column 23. A motor 211 is fixedly connected to the middle of the top of the connecting bracket 21. A movable groove is opened in the center of the inside of the connecting bracket 21. The output shaft of the motor 211 passes through the inside of the movable groove and is fixedly connected to a bevel gear 212. Bevel gears 213 are meshed on both the left and right sides of the outer surface of bevel gear 212. A first screw 214 is fixedly connected to the side of bevel gear 213 away from bevel gear 212. The left and right ends of the connecting bracket 21 are respectively provided with sliding grooves. The end of the first screw 214 away from the bevel gear 213 passes through the interior of the sliding groove and the outer surface is threaded with an extension slide plate 215. The top of the extension slide plate 215 is movably hinged with a pull rod 217. The top of the pull rod 217 is movably hinged with the outer surface of the lifting slide column 23. The front and rear sides of the end of the extension slide plate 215 near the first screw 214 are slidably inserted with limit posts 216. The end of the limit post 216 away from the extension slide plate 215 is fixedly connected to the inner wall of the sliding groove.

[0028] When the weighing device on the open-pit mine dump truck is in use, the weighing bracket 2 is fixedly installed at the bottom of the rear beam frame 1 of the mine dump truck by connecting bolts 3, while the weighing pressure plate 4 is fixedly installed at the top of the lifting slide column 23, so that the goods in the open-pit mine dump truck can be weighed. When the mine dump truck is running, by starting the motor 211, the first bevel gear 212 drives the second bevel gear 213 to rotate inside the movable groove 1, which drives the first screw 214 to rotate and drives the extension slide plate 215 to slide along the limit column 216, so that the extension slide plate 215 can extend from the inside of the sliding groove, and the lifting slide column 23 can be pulled along the support sleeve column 22 by the pull rod 217. Thus, when the mine dump truck is running, the weighing pressure plate 4 is retracted to avoid damage to the weighing pressure plate 4 due to the bumps of the mine dump truck, which facilitates the use of the weighing device on the mine dump truck.

[0029] like Figure 4-5 As shown, this utility model provides a weighing device for open-pit mine dump trucks. A slot 41 is provided at the bottom center of the weighing pressure plate 4. A slot plate 231 is fixedly connected to the top of the lifting column 23. The slot plate 231 is slidably inserted into the slot 41. Knobs 232 are movably connected to the upper front and rear sides of the outer surface of the lifting column 23. A movable groove is provided inside the upper part of the lifting column 23. One end of the knob 232 near the lifting column 23 extends into the movable groove and is fixedly connected to a bevel gear 233. A bevel gear 234 meshes above the outer surfaces of the two bevel gears 233. A second screw is fixedly connected to the top of the bevel gear 234. The rod 235 and the plug plate 231 have a cross groove inside. The top and bottom of the cross groove are provided with guide slopes. The top of the second screw 235 passes through the interior of the cross groove and is threadedly connected to the outer surface of the threaded slide plate 236. The outer surface of the threaded slide plate 236 is movably hinged with four push rods 237 in an annular array. The end of the push rod 237 away from the threaded slide plate 236 is movably hinged with a fixing plate 238. The inner surface of the plug groove 41 has four fixing slots 42 in an annular array. The outer surface of the fixing plate 238 matches the guide slope of the cross groove and is slidably connected. The end of the fixing plate 238 away from the push rod 237 passes through the interior of the fixing slot 42.

[0030] The weighing pressure plate 4 can be fixed by inserting the fixing plate 238 into the fixing slot 42. When disassembling, by rotating the knob 232, the bevel gear 3 233 drives the bevel gear 4 234 to rotate inside the movable slot 2. This allows the second screw 235 to drive the threaded slide plate 236 to slide inside the cross slide groove. The fixing plate 238 can then be pulled back from the fixing slot 42 by the push rod 237, making it easy to remove the weighing pressure plate 4 from the plug plate 231 at the top of the lifting slide column 23. This facilitates the repair and replacement of the weighing pressure plate 4 when it malfunctions, making the use of the weighing device on the mining dump truck more convenient.

[0031] The working principle of the on-board weighing device for open-pit mine dump trucks will be explained in detail below.

[0032] like Figure 1-5 As shown, when using the on-board weighing device on an open-pit mine dump truck, holes are first drilled in the rear beam 1 of the dump truck so that the connecting bolts 3 on the on-board weighing bracket 2 can pass through the holes. Then, the nuts are tightened to complete the connection and fixation of the connecting bolts 3 and the on-board weighing bracket 2. After that, the weighing pressure plate 4 is fitted onto the plug plate 231 through the plug slot 41. By rotating the knob 232, the bevel gear 3 233 drives the bevel gear 4 234 to rotate, which causes the second screw 235 to drive the threaded slide plate 236 to slide. This allows the fixing plate 238 to be pushed into the fixing slot 42 through the push rod 237. The system secures the weighing pressure plate 4, completing the installation of the vehicle-mounted weighing device. This allows for the weighing of goods inside the open-pit mine dump truck. When the mine dump truck is in operation, starting the motor 211 causes the first bevel gear 212 to rotate, which in turn causes the first screw 214 to slide the extension slide plate 215. This, in turn, causes the lifting slide column 23 to slide downward via the pull rod 217. As a result, the weighing pressure plate 4 is retracted during operation, preventing damage to the weighing pressure plate 4 due to the bumps in the mine dump truck's cargo compartment and facilitating the use of the vehicle-mounted weighing device.

[0033] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A vehicle-mounted weighing device for open-pit mine dump trucks, characterized in that: The equipment includes a rear beam frame (1) of a mining dump truck, a vehicle-mounted weighing bracket (2) is provided at the bottom of the rear beam frame (1), and a number of connecting bolts (3) are fixedly connected to the top of the vehicle-mounted weighing bracket (2). The vehicle-mounted weighing bracket (2) is fixedly installed at the bottom of the rear beam frame (1) of the mining dump truck by the connecting bolts (3). Weighing pressure plates (4) are provided on both the left and right sides of the top of the vehicle-mounted weighing bracket (2). The vehicle-mounted weighing bracket (2) includes a connecting bracket (21), which is set at the bottom of the rear beam frame (1) of the mining dump truck. The connecting bolt (3) is fixedly connected to the top of the rear beam frame (1) of the mining dump truck. Supporting sleeves (22) are fixedly connected to the top left and right sides of the connecting bracket (21). A lifting slide column (23) is slidably inserted into the top of the inner surface of the supporting sleeve column (22). The weighing pressure plate (4) is fixedly installed on the top of the lifting slide column (23). A motor (211) is fixedly connected to the top center of the connecting bracket (21). A movable groove is provided in the center of the interior of the connecting bracket (21). The output shaft of the motor (211) passes through the interior of the movable groove and is fixedly connected to a bevel gear (212). Bevel gears (213) are meshed on both the left and right sides of the outer surface of the bevel gear (212). A first screw (214) is fixedly connected to the side of the bevel gear (213) away from the bevel gear (212). Sliding grooves are provided at the left and right ends of the connecting bracket (21). The end of the first screw (214) away from the bevel gear (213) passes through the interior of the sliding groove and is threadedly connected to an extension slide plate (215) on its outer surface. A pulling rod (217) is movably hinged to the top of the extension slide plate (215). The top of the pulling rod (217) is movably hinged to the outer surface of the lifting slide column (23).

2. The on-board weighing device for open-pit mine dump trucks according to claim 1, characterized in that: The extension slide plate (215) has slidably inserted limit posts (216) on both the front and rear sides of the end closest to the first screw (214). The end of the limit post (216) away from the extension slide plate (215) is fixedly connected to the inner wall of the sliding groove.

3. The on-board weighing device for open-pit mine dump trucks according to claim 1, characterized in that: The weighing pressure plate (4) has a plug-in groove (41) at the bottom center. The inner surface of the plug-in groove (41) has four fixed slots (42) arranged in a ring array. The top of the lifting slide column (23) is fixedly connected to a plug-in plate (231), which is slidably inserted into the inside of the plug-in groove (41).

4. The on-board weighing device for open-pit mine dump trucks according to claim 3, characterized in that: The upper front and rear sides of the outer surface of the lifting slide column (23) are movably connected to knobs (232). The upper interior of the lifting slide column (23) is provided with a movable groove. The end of the knob (232) near the lifting slide column (23) passes through the interior of the movable groove and is fixedly connected to a bevel gear (233).

5. The on-board weighing device for open-pit mine dump trucks according to claim 4, characterized in that: A bevel gear four (234) is meshed above the outer surfaces of the two bevel gears three (233), and a second screw (235) is fixedly connected to the top of the bevel gear four (234).

6. The on-board weighing device for open-pit mine dump trucks according to claim 5, characterized in that: The plug plate (231) has a cross groove inside, and guide slopes are provided at the top and bottom of the cross groove. The top of the second screw (235) extends into the interior of the cross groove and is threadedly connected to a threaded slide plate (236) on its outer surface.

7. The on-board weighing device for open-pit mine dump trucks according to claim 6, characterized in that: The outer surface of the threaded slide plate (236) is movably hinged with four push rods (237) in an annular array, and the end of the push rod (237) away from the threaded slide plate (236) is movably hinged with a fixing plate (238).

8. The on-board weighing device for open-pit mine dump trucks according to claim 7, characterized in that: The outer surface of the fixed plate (238) matches and slides with the guide slope of the cross groove, and the end of the fixed plate (238) away from the push rod (237) extends into the interior of the fixed groove (42).

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