Gantry frame type mine car speed reducer and method thereof

Abstract

The invention discloses a gantry frame type mine car speed reducer and a method thereof, and belongs to the technical field of mine car speed reduction control. The system comprises a ground surface annular parking lot, a plurality of gantry frame speed reduction devices are arranged on the ground surface annular parking lot, each gantry frame speed reduction device comprises a stand column and a cross beam, the bottom of each stand column is welded to a track beam, and the cross beam is welded to the top of each stand column; each gantry frame speed reduction device is correspondingly provided with two sets of stand columns, the two sets of stand columns are arranged on the two sides of the track respectively, and every two adjacent sets of stand columns are welded together through a cross beam. Rubber plates are arranged on the inner side faces of the stand columns. Through the gantry frame type speed reduction device, the overhigh self-sliding speed of the mine car is effectively reduced, the mine car can stably and automatically slide to a working procedure point, and accidents of collision and derailing are avoided, so that the safety guarantee is improved, safe operation of an annular parking lot is guaranteed, the maintenance cost is effectively reduced, and the production efficiency is remarkably improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mine car deceleration control, and more specifically, to a gantry frame type mine car deceleration device and a method thereof. Background Art

[0002] The ring-shaped yard is a fixed mine car transporting ore in a circular single-lane manner at the shaft entrance, connecting the shaft and external transportation in underground mining. The heavy mine car loaded with ore in the ring-shaped yard at the bottom of the shaft is lifted to the ring-shaped yard at the shaft entrance by a cage, and the empty mine car unloaded in the ring-shaped yard at the shaft entrance returns to the cage to load ore.

[0003] Figure 1 The main process route is shown as follows: after the mine car leaves the cage at the wellhead, it is unloaded at the dumper, and then passes through the B and C track sections to the climbing machine. The climbing machine performs height compensation, and the mine car passes through the D track section to reach the wellhead to wait for the tank to go down the well; the circular car is used to achieve the purpose of the mine car sliding by itself. Figure 1 The A, B, C, D and E sections of the track have a certain slope according to on-site adjustment so that the mine cars can slide to each process point.

[0004] The following problems exist in the prior art: the mine car slides on the sloping track, and the acceleration makes the sliding speed faster and faster, so that when it reaches each process point, the mine car hits the car blocker or the mine car waiting for the tank at each process point due to the excessive inertia force, causing the mine car to derail and the equipment to be damaged, posing a safety hazard. It is particularly difficult to deal with heavy vehicles derailing, which seriously restricts safe production. Summary of the invention

[0005] 1. Technical problem to be solved by the invention

[0006] In view of the defects and shortcomings of the prior art, the present invention provides a gantry frame type mine car deceleration device and method thereof. The present invention effectively improves safety assurance. The self-sliding mine car in the circular yard passes through the gantry frame type deceleration device, which effectively reduces the excessive self-sliding speed of the mine car. The mine car can slide to the process point more smoothly, avoiding the occurrence of collisions and derailment accidents, making the working environment safer, improving the production safety factor, ensuring the safe operation of the circular yard, and effectively reducing maintenance costs: reducing the investment in manpower, time and cost due to handling mine car derailment and equipment failures; significantly improving production efficiency: eliminating failures, and making production safer and smoother.

[0007] 2. Technical solution

[0008] In order to achieve the above object, the technical solution provided by the present invention is:

[0009] A gantry frame type mining car deceleration device of the present invention comprises a surface annular parking lot, wherein the surface annular parking lot is composed of a first straight segment, a first reversing segment, a second straight segment, a second reversing segment and a third straight segment;

[0010] The bottoms of the first straight segment, the first reversing segment, the second straight segment, the second reversing segment and the third straight segment are all paved with track beams, and tracks are paved on the track beams;

[0011] The surface circular parking lot is provided with multiple groups of gantry frame deceleration devices, the gantry frame deceleration devices include columns and cross beams, the bottom of the columns are welded to the track beams, and the tops of the columns are welded with cross beams;

[0012] Each set of gantry frame deceleration device is provided with two sets of columns, which are respectively arranged on both sides of the track, and the two adjacent sets of columns are welded together through the crossbeam;

[0013] The inner side surface of the column is provided with a rubber plate, the surface of the rubber plate is provided with a pressing plate, and the rubber plate and the pressing plate are assembled with the column through fixing bolts.

[0014] Furthermore, the first straight line segment, the first reversing segment, the second straight line segment, the second reversing segment and the third straight line segment all have a certain slope.

[0015] Furthermore, a cage is arranged between the first straight section and the third straight section, a tipping machine is arranged between the first straight section and the first reversing section, and a plate chain climbing machine is arranged between the second straight section and the second reversing section.

[0016] Furthermore, the first straight segment and the third straight segment are both provided with a car pusher and a car blocker, and the second straight segment is provided with a gantry frame speed reduction device, which is correspondingly arranged at the input end of the plate chain climber.

[0017] Furthermore, the gantry frame speed reducers are arranged in multiple groups at intervals along the laying direction of the track, and longitudinal beams are commonly arranged on the tops of the multiple groups of gantry frame speed reducers, and the columns of the adjacent multiple groups of gantry frame speed reducers are welded together through the longitudinal beams.

[0018] Furthermore, a rib plate is provided at the connection between the column and the track beam, and the rib plate is in the shape of a right-angled triangle plate, and two right-angled sides of the rib plate are respectively fitted with the column and the track beam.

[0019] Furthermore, track connection holes are provided at both ends of the track, a mine car is carried on the track, and a width of the mine car is greater than the spacing between adjacent rubber plates.

[0020] Furthermore, a mine car loaded with ore is called a heavy car, and a mine car after unloading is called an empty car.

[0021] A method for a gantry frame type mine car deceleration device, the steps of which are:

[0022] Step 1: The heavy vehicle is lifted from the cage to the surface wellhead;

[0023] Step 2: The cart pusher on the third straight segment pushes the empty cart to push the loaded cart out of the tank cage, and the loaded cart runs along the first straight segment to the car tipper;

[0024] Step 3: The car pusher on the first straight line pushes the heavy car into the car dumper, and the car dumper drives the heavy car to dump and unload the ore;

[0025] Step 4: The car pusher on the first straight line pushes the next sequence of heavy cars into the car dumper and simultaneously pushes out the unloaded empty cars;

[0026] Step 5: The empty vehicle passes through the first reversing section and the second straight section in sequence and slides to the plate chain climbing machine. The plate chain climbing machine allows the empty vehicle to climb the slope for height compensation and pass through the second reversing section and the third straight section to reach the wellhead waiting tank;

[0027] Step 6: The cart pusher on the third straight line segment pushes the empty cart into the tank cage and pushes the loaded cart out of the tank, so that the empty cart can go down the well.

[0028] Furthermore, the mine car moves along the track. When the mine car passes through the gantry frame deceleration device, both sides of the mine car contact with the rubber plate and produce a friction deceleration effect.

[0029] 3. Beneficial effects

[0030] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0031] The present invention effectively improves safety assurance. The self-sliding mine cars in the circular yard pass through the gantry frame-type deceleration device, which effectively reduces the excessive self-sliding speed of the mine cars. The mine cars can slide to the process point more smoothly, avoiding the occurrence of collisions and derailment accidents, making the working environment safer, improving the production safety factor, ensuring the safe operation of the circular yard, and effectively reducing maintenance costs: reducing the investment in manpower, time, and cost for handling mine car derailment and equipment failures; significantly improving production efficiency: eliminating failures, and making production safer and smoother. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 A top view of the present invention;

[0033] Figure 2 It is a front view of the gantry frame speed reducer of the present invention;

[0034] Figure 3 It is a side view of the gantry frame speed reducer of the present invention;

[0035] Figure 4 It is a top view of the gantry frame speed reducer of the present invention;

[0036] Figure 5It is a front view of the mine car of the present invention when passing through the gantry frame deceleration device;

[0037] Figure 6 It is a side view of the mine car of the present invention when passing through the gantry frame deceleration device;

[0038] Figure 7 It is a top view of the mine car of the present invention when passing through the gantry frame deceleration device;

[0039] Figure 8 It is a partial enlarged view of the present invention.

[0040] In the figure: 1. Surface circular parking lot; 101. First straight segment; 102. First reversing segment; 103. Second straight segment; 104. Second reversing segment; 105. Third straight segment; 106. Cage; 107. Car tipper; 108. Plate chain climber; 109. Car pusher; 110. Car blocker; 2. Gantry frame deceleration device; 201. Column; 202. Crossbeam; 203. Longitudinal beam; 204. Rib plate; 205. Rubber sheet; 206. Pressure plate; 207. Fixing bolt; 3. Track beam; 4. Track; 401. Track connecting hole; 5. Mine car. DETAILED DESCRIPTION

[0041] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0042] Example 1

[0043] from Figure 1-8 It can be seen that a gantry frame type mine car deceleration device of this embodiment includes a surface annular parking lot 1, and the surface annular parking lot 1 is composed of a first straight segment 101, a first reversing segment 102, a second straight segment 103, a second reversing segment 104 and a third straight segment 105;

[0044] Track beams 3 are laid at the bottom of the first straight segment 101, the first reversing segment 102, the second straight segment 103, the second reversing segment 104 and the third straight segment 105. Track beams 3 are laid on the track beams 3. Tracks 4 are opened at both ends of the track 4 to assemble two adjacent groups of tracks 4 together.

[0045] A plurality of gantry frame deceleration devices 2 are arranged on the surface circular parking lot 1. The gantry frame deceleration devices 2 include columns 201 and cross beams 202. The bottom of the columns 201 is welded to the track beam 3, and the top of the columns 201 is welded with the cross beam 202.

[0046] Each group of gantry frame deceleration device 2 is correspondingly provided with two groups of columns 201, and the two groups of columns 201 are respectively arranged on both sides of the track 4, and the two adjacent groups of columns 201 are welded together through the crossbeam 202;

[0047] A rubber plate 205 is disposed on the inner side of the column 201 , and a pressing plate 206 is disposed on the surface of the rubber plate 205 . The rubber plate 205 and the pressing plate 206 are assembled with the column 201 via fixing bolts 207 .

[0048] The first straight segment 101, the first reversing segment 102, the second straight segment 103, the second reversing segment 104 and the third straight segment 105 all have a certain slope so that the mine car 5 can slide to each process point.

[0049] A cage 106 is arranged between the first straight section 101 and the third straight section 105 , a dumper 107 is arranged between the first straight section 101 and the first reversing section 102 , and a plate chain climbing machine 108 is arranged between the second straight section 103 and the second reversing section 104 .

[0050] The first straight segment 101 and the third straight segment 105 are both provided with a car pusher 109 and a car blocker 110 , and the second straight segment 103 is provided with a gantry frame reduction device 2 , which is correspondingly arranged at the input end of the plate chain climbing machine 108 .

[0051] According to the needs on site, a gantry frame deceleration device 2 can be respectively arranged at the input end of the corresponding cage 106 and the input end of the dumper 107 .

[0052] A plurality of gantry frame speed reducers 2 are arranged at intervals along the laying direction of the track 4 , a longitudinal beam 203 is commonly arranged on the top of the plurality of gantry frame speed reducers 2 , and the columns 201 of the plurality of adjacent gantry frame speed reducers 2 are welded together via the longitudinal beam 203 .

[0053] A rib plate 204 is provided at the connection between the column 201 and the track beam 3 . The rib plate 204 is in the shape of a right-angled triangle plate, and two right-angled sides of the rib plate 204 are respectively in contact with the column 201 and the track beam 3 .

[0054] A mine car 5 is carried on the track 4 , and the width of the mine car 5 is greater than the distance between adjacent rubber plates 205 .

[0055] Example 2

[0056] from Figure 1-8 It can be seen that in the method of a gantry frame type mine car deceleration device of this embodiment, the mine car 5 loaded with ore is a heavy car, and the mine car 5 after unloading is an empty car, and the steps are:

[0057] Step 1: The heavy vehicle is lifted from the cage 106 to the surface wellhead;

[0058] Step 2: The cart pusher 109 on the third straight segment 105 pushes the empty cart to push the loaded cart out of the tank cage 106, and the loaded cart runs along the first straight segment 101 to the cart tipper 107;

[0059] Step 3: The cart pusher 109 on the first straight segment 101 pushes the heavy cart into the car dumper 107, and the car dumper 107 drives the heavy cart to dump and unload the ore;

[0060] Step 4: The cart pusher 109 on the first straight segment 101 pushes the next sequence of heavy carts into the cart tipper 107 and simultaneously pushes out the unloaded empty carts;

[0061] Step 5: The empty vehicle passes through the first reversing section 102 and the second straight section 103 in sequence and slides to the plate chain climbing machine 108. The plate chain climbing machine 108 allows the empty vehicle to climb the slope for height compensation and pass through the second reversing section 104 and the third straight section 105 to reach the wellhead waiting tank;

[0062] Step 6: The cart pusher 109 on the third straight line segment 105 pushes the empty cart into the tank cage and pushes the loaded cart out of the tank, so that the empty cart goes down the well.

[0063] The mine car 5 moves along the track 4. When the mine car 5 passes through the gantry frame deceleration device 2, both sides of the mine car 5 contact the rubber plate 205 and produce a friction deceleration effect.

[0064] like Figure 1 As shown, before the mine car 5 approaches the process point in the surface circular yard 1 in the self-sliding direction F, the surface circular yard 1 is provided with a gantry frame deceleration device 2, and an elastic rubber plate 205 is installed on the inner side of the column 201, which can be used to slow down the self-sliding speed of the mine car on the track with a downward slope;

[0065] like Figure 4-7 As shown in FIG. 1 , when the mine car 5 enters the gantry frame deceleration device 2 at a relatively large inertial speed, the rubber plates 205 on the columns 201 on both sides of the frame block the mine car 5. Since the inertial force of the mine car 5 is greater than the blocking force of the rubber plates 205, the rubber plates 205 are squeezed and deformed along the sliding direction F of the mine car, as shown in FIG. Figure 8 As shown in the partial enlarged view of the point X, the mine car 5 overcomes the elastic force of the rubber plate 205 to restore its original shape and continues to slide by inertia. At this time, the rubber plate 205 rubs against the two side surfaces of the mine car 5, and the friction force further slows down the sliding speed of the mine car.

[0066] In the figure, a plurality of gantry frame reduction devices 2 are installed at the positions of different groups of track beams 3 to increase the deceleration resistance. The cross beam 202 and the longitudinal beam 203 connect the plurality of gantry frame reduction devices 2 into one, ensuring that a single group of gantry frame reduction devices 2 does not produce unidirectional swing when subjected to a unidirectional impact by the mine car 5.

[0067] In the figure, a, b, and c are the dimensions of the rubber sheet 205, and the dimension d is controlled so that the mining car 5 can pass through after overcoming the elastic deformation force of the rubber sheet 205.

[0068] According to the actual sliding speed of the mine car 5 on site, the number of groups of the gantry frame speed reducer 2 can be increased or decreased, the spacing size of the rubber plate 205 can be adjusted, and the hardness and softness of the rubber plate 205 can be adjusted to control the self-sliding speed of the mine car 5 to achieve the requirement that the mine car 5 can smoothly slide into the process point.

[0069] The gantry frame speed reducer 2 is a steel structure welded by channel steel, and the cross beam 202 and the longitudinal beam 203 are used to increase the rigidity of a single set of gantry frames and to provide horizontal and longitudinal support to the gantry frames.

[0070] The purpose of the present invention is to provide a gantry frame type deceleration device which consumes a part of the inertial force formed by the self-sliding operation before the mine car arrives at each process point, so that the mine car 5 can slide into the process point at a low speed and smoothly; the present invention effectively controls the speed of the mine car 5 before entering the process point, so that the mine car 5 can reach each process point at a speed without excessive collision, avoiding collision with the car stopper and the mine car 5 at each process point, eliminating the risk of the mine car 5 falling off the track, and ensuring the safe operation of the circular parking lot.

[0071] The present invention effectively improves safety assurance. The self-sliding mine car in the circular yard passes through the gantry frame-type deceleration device 2, which effectively reduces the excessive self-sliding speed of the mine car 5. The mine car 5 can slide to the process point more smoothly, avoiding the occurrence of collisions and derailment accidents, making the working environment safer, improving the production safety factor, ensuring the safe operation of the circular yard, and effectively reducing maintenance costs: reducing the investment in manpower, time, and cost for handling mine car derailment and equipment failures; significantly improving production efficiency: eliminating failures, and making production safer and smoother.

[0072] The present invention and its embodiments are described schematically above, and the description is not restrictive. The drawings show only one embodiment of the present invention, and the actual structure is not limited thereto. Therefore, if a person skilled in the art is inspired by it and designs a structural method and an embodiment similar to the technical solution without creativity without departing from the purpose of the invention, they shall all fall within the protection scope of the present invention.

Claims

1. A gantry frame type mine car deceleration device, comprising a surface annular parking lot (1), characterized in that: The surface circular parking lot (1) is composed of a first straight segment (101), a first reversing segment (102), a second straight segment (103), a second reversing segment (104) and a third straight segment (105); Track beams (3) are laid at the bottom of the first straight segment (101), the first reversing segment (102), the second straight segment (103), the second reversing segment (104) and the third straight segment (105), and tracks (4) are laid on the track beams (3); The surface circular parking lot (1) is provided with a plurality of gantry frame deceleration devices (2), the gantry frame deceleration devices (2) comprising upright posts (201) and cross beams (202), the bottoms of the upright posts (201) are welded to the track beams (3), and the tops of the upright posts (201) are welded with cross beams (202); Each group of gantry frame deceleration devices (2) is correspondingly provided with two groups of columns (201), the two groups of columns (201) are respectively arranged on both sides of the track (4), and the two adjacent groups of columns (201) are welded together through a crossbeam (202); The inner side surface of the column (201) is provided with a rubber plate (205), and the surface of the rubber plate (205) is provided with a pressing plate (206). The rubber plate (205) and the pressing plate (206) are assembled with the column (201) via fixing bolts (207).

2. A gantry frame type mine car deceleration device according to claim 1, characterized in that: The first straight line segment (101), the first reversing segment (102), the second straight line segment (103), the second reversing segment (104) and the third straight line segment (105) all have a certain slope.

3. A gantry frame type mine car deceleration device according to claim 2, characterized in that: A cage (106) is arranged between the first straight section (101) and the third straight section (105), a tipping machine (107) is arranged between the first straight section (101) and the first reversing section (102), and a plate chain climbing machine (108) is arranged between the second straight section (103) and the second reversing section (104).

4. A gantry frame type mine car deceleration device according to claim 3, characterized in that: The first straight section (101) and the third straight section (105) are both provided with a car pusher (109) and a car blocker (110), and the second straight section (103) is provided with a gantry frame deceleration device (2), and the gantry frame deceleration device (2) is correspondingly arranged at the input end of the plate chain climbing machine (108).

5. A gantry frame type mine car deceleration device according to claim 4, characterized in that: The gantry frame speed reducer (2) is arranged in multiple groups at intervals along the laying direction of the track (4), and a longitudinal beam (203) is commonly arranged on the top of the multiple groups of gantry frame speed reducers (2), and the columns (201) of the adjacent multiple groups of gantry frame speed reducers (2) are welded together via the longitudinal beam (203).

6. A gantry frame type mine car deceleration device according to claim 5, characterized in that: A rib plate (204) is provided at the connection between the column (201) and the track beam (3). The rib plate (204) is in the shape of a right-angled triangle plate, and two right-angled sides of the rib plate (204) are respectively fitted with the column (201) and the track beam (3).

7. A gantry frame type mine car deceleration device according to claim 6, characterized in that: Track connection holes (401) are provided at both ends of the track (4), a mine car (5) is carried on the track (4), and the width of the mine car (5) is greater than the distance between adjacent rubber plates (205).

8. A gantry frame type mine car deceleration device according to claim 7, characterized in that: The mine car (5) loaded with ore is a heavy car, and the mine car (5) after unloading is an empty car.

9. The method of the gantry frame type mine car deceleration device according to claim 8, characterized in that: The steps are: Step 1: The heavy vehicle is lifted from the cage (106) to the surface wellhead; Step 2: The cart pusher (109) on the third straight section (105) pushes the empty cart to push the loaded cart out of the tank cage (106), and the loaded cart runs along the first straight section (101) to the cart tipper (107); Step 3: The car pusher (109) on the first straight line segment (101) pushes the heavy car into the car tipper (107), and the car tipper (107) drives the heavy car to tip over and unload the ore; Step 4: The cart pusher (109) on the first straight line segment (101) pushes the next sequence of heavy carts into the cart tipper (107) and simultaneously pushes out the unloaded empty carts; Step 5: the empty vehicle sequentially passes through the first reversing section (102), the second straight section (103) and slides to the plate chain climbing machine (108). The plate chain climbing machine (108) enables the empty vehicle to climb the slope to compensate for the height and pass through the second reversing section (104) and the third straight section (105) to reach the wellhead waiting tank; Step 6: The cart pusher (109) on the third straight line segment (105) pushes the empty cart into the cage and pushes the loaded cart out of the tank, so that the empty cart goes down the well.

10. The method of the gantry frame type mine car deceleration device according to claim 9, characterized in that: The mine car (5) moves along the track (4). When the mine car (5) passes through the gantry frame deceleration device (2), both sides of the mine car (5) contact the rubber plate (205) and produce a friction deceleration effect.

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