Cable car running ramp net car catching device

Abstract

The present invention discloses a cable car running slope net car catching device, which relates to the field of safe operation of cable cars in coal mines. The car catching device includes a cross bar, a linkage rod, two energy absorbers, a cylinder I and a cylinder II, etc. The cross bars are evenly divided into two groups, and the two groups of cross bars are symmetrically distributed with the center line of the tunnel as the axis. The three cross bars of each group are parallel to each other and connected as a whole by two evenly distributed linkage rods. Cylinder I is fixed between two symmetrical cross bars in the middle position. The linkage between cylinder I and cylinder II enables the car catching device to mainly realize the following process: when the cable car is running, the cross bar is lowered into a "V" shape, the width is reduced, and it does not interfere with the operation of the cable car, and can play a safety protection role in intercepting sports cars; when the winch is running, the net car catching device is raised before the vehicle arrives, and the cross bar is transformed into an "I" shape, the transportation width is increased, and the smooth passage of the vehicle is ensured. The present invention greatly improves the safety factor in transportation, eliminates safety hazards, and has a good application effect.

Description

Technical Field

[0001] The invention relates to the field of safe operation of underground cable cars in coal mines, in particular to a cable car operation slope net-type car scoop, which is suitable for use on a slope that takes into account both cable car and personnel transportation in underground winch transportation. Background Art

[0002] In the slope of the rail tunnel under the coal mine, under the condition of a certain downhill slope and a certain tunnel width, in order to provide a tunnel for both winch transportation and cable car transportation, the track is laid on the bottom plate along the center of the tunnel, and the cable car wire rope is arranged on both sides of the tunnel 0.8m away from the wall.

[0003] For example: the pressure plate buffer energy absorber (hereinafter referred to as the energy absorber) of the original net car salver is symmetrically arranged on both sides of the track, and the spacing between the energy absorbers is 1.9m. When the cable car is running, the winch stops running, and the crossbar of the net car salver is lowered to a stationary state. The center of the hanging chair (that is, the wire rope of the cable car) is 0.8 meters away from the left and right sides respectively, the overall width of the passengers is 0.5 meters, the bending width of the Φ26mm wire rope is 0.35m, and the upper limit of the width of the crossbar is: 4-(0.8+0.5 / 2)×2-0.35×2=1.2m. If the width of the crossbar exceeds 1.2m, when the passengers pass through the net car salver, they will scrape against the Φ26mm wire rope of the net car salver, which poses serious safety hazards, such as Figure 1 When the winch is used for transportation, the cable car stops running, and before the vehicle reaches the net-type vehicle scoop, the crossbar and the wire rope rise up. At this time, the effective transportation width is 1550mm. Figure 2 As shown in the figure: when the width of the vehicle exceeds 1550mm, it will scrape against the wire rope, which may cause the deformation of the crossbar of the net car catching device, failure of equipment binding, material scattering, vehicle overturning and falling off the road, etc., and even cause the car running away due to broken ropes, which poses a serious safety hazard. In summary, due to the limitation of rope car transportation, when the crossbar width is ≥1.2m, when the passengers pass through the net car catching device, they will scrape against the Φ26mm wire rope of the net car catching device, which poses a serious safety hazard; but when the crossbar width is ≤1.2m, its effective transportation width is ≤1550mm, and the vehicle width exceeding this width will scrape against the wire rope, which also poses a serious safety hazard. Therefore, in all the same types of slope tunnels, it is necessary to consider that the width of the crossbar of the net car catching device should be reduced as much as possible when the rope car is used to transport people, and it is also necessary to consider that the width of the crossbar of the net car catching device should be increased as much as possible when the winch is used for transportation. In order to solve this contradictory problem, it is necessary to improve the existing car catching device to ensure the smooth progress of transportation operations. Summary of the invention

[0004] In order to solve the problem of reducing the crossbar width of the net car catching device as much as possible when transporting people by ropeway in a slope tunnel and increasing the crossbar width of the net car catching device as much as possible when transporting people by winch, the present invention provides an improved ropeway-operated slope net car catching device.

[0005] The present invention is realized through the following technical scheme: a cable car running slope net type car catching device, comprising 6 cross bars, 4 linkage rods, two energy absorbers, cylinder I and cylinder II, the cross bars are made of angle iron, the two energy absorbers are symmetrically arranged with the center line of the tunnel as the axis, and the power source of the car catching device is the underground compressed air pipeline; the 6 cross bars are divided into two groups, and the two groups of cross bars are symmetrically distributed with the center line of the tunnel as the axis, the three cross bars in each group are parallel to each other and connected as a whole by two evenly distributed linkage rods; each cross bar in each group is hinged to the cross bar symmetrical to it in the other group through a hinge; in the two groups of cross bars, the symmetrical ones located in the middle position The two cross bars are also connected as a whole through cylinder I, the piston rod end of cylinder I is fixedly connected to one of the cross bars, and the tail cover of cylinder I is fixedly connected to the other cross bar; two wire rope clamps are fixedly provided on each cross bar, and one end of a single car-salvaging wire rope is clamped in the cross bar through the wire rope clamp, then three car-salvaging wire ropes are clamped in each group of cross bars, and the other ends of the three car-salvaging wire ropes in each group are pressed by the energy absorber on the same side, after the car-salvaging wire rope is pressed by the energy absorber, there is a tail rope of a certain length behind the energy absorber, the bottom surface of the energy absorber is parallel to the slope of the tunnel, and the energy absorber is fixed to the ground by multiple anchors. The cylinder II is fixed to the top plate, and the end of its piston rod is fixedly connected to two pulley wire ropes. Two groups of fixed pulleys are also arranged on the top plate. The two groups of fixed pulleys are symmetrical about the center line of the tunnel and are both arranged on the outside of the track. The two pulley wire ropes respectively pass around the two groups of fixed pulleys on the top plate and are then fixedly connected to the two groups of cross bars on the same side; the cylinder I and cylinder II are connected as a linkage whole through a three-position four-way manual reversing valve, a trachea three-way joint I and a trachea three-way joint II. The air inlet of the three-position four-way manual reversing valve is connected to the trachea, and the downhole compressed air enters through the trachea. The first air port of the three-position four-way manual reversing valve is connected to the first air port of cylinder II and the second air port of cylinder I through the trachea three-way joint I, and the second air port of the three-position four-way manual reversing valve is connected to the second air port of cylinder II and the first air port of cylinder I through the trachea three-way joint II.

[0006] The slope net-type car catching device for cable car operation provided by the present invention mainly realizes the function that when the cable car is running, the cross bar is lowered into a "V" shape, the width is reduced, and it does not interfere with the operation of the cable car, and can play a safety protection role in intercepting the running car; when the winch is running, the net-type car catching device is raised before the vehicle arrives, the cross bar is transformed into an "I" shape, the transportation width is increased, and the smooth passage of the vehicle is ensured. The device is immediately closed after the vehicle passes, and the power of the entire device is provided by the underground compressed air pipeline. The car catching device mainly includes a cross bar, a linkage rod, an energy absorber and two cylinders. There are 6 cross bars and 4 linkage rods. In order to achieve the reliable car catching purpose of the cross bars, the cross bars are made of angle iron. The 6 cross bars are divided into two groups, and the two groups of cross bars are symmetrically distributed with the center line of the lane as the axis. The three cross bars in each group are parallel to each other and connected as a whole by two evenly distributed linkage rods, so that when one cross bar moves, all three cross bars move accordingly. Each cross bar in each group is hinged with the cross bar symmetrical to it in the other group through hinges, forming three rows of cross bars. In order to achieve a "V" shape when the cross bar is lowered and an "I" shape when it is raised, the two symmetrical cross bars in the middle position are connected as a whole through cylinder I, the piston rod end of cylinder I is fixedly connected to one of the cross bars, and the tail cover of cylinder I is fixedly connected to the other cross bar. When the piston rod of cylinder I is extended, the two sets of cross bars are linked to form an "I" shape and rise to allow vehicles to pass. When the piston rod of cylinder I is retracted, the two sets of cross bars form a "V" shape and descend, at this time the cable car can pass, and it can also serve to intercept sports cars. Two wire rope clamps are fixed on each cross bar, and one end of a single car-salvaging wire rope is clamped in the cross bar through the wire rope clamps, so there are three car-salvaging wire ropes clamped in each group of cross bars. The car-salvaging wire rope is a buffer component, and the other ends of the three car-salvaging wire ropes in each group are pressed down by the energy absorber on the same side. After the car-salvaging wire rope is pressed down by the energy absorber, there is a tail rope of a certain length behind the energy absorber, and the bottom surface of the energy absorber is parallel to the slope of the tunnel. The piston rod of cylinder I extends and retracts to drive the cross bar to move up and down and change its state, and at the same time, the car-salvaging wire rope also changes its state and moves with the cross bar. Since the energy absorber is fixed to the ground by multiple anchors, the energy absorber can press down the three car-salvaging wire ropes. The two cylinders operate in linkage, cylinder I drives the cross bar to extend and retract left and right, cylinder II drives the cross bar and the fishing car wire rope to rise and fall, cylinder II is fixed to the top plate, and the end of its piston rod is fixedly connected with two pulley wire ropes. Two sets of fixed pulleys are also arranged on the top plate, and the two sets of fixed pulleys are symmetrical with the center line of the tunnel as the axis, and are both arranged on the outside of the track. The two pulley wire ropes respectively pass around the two sets of fixed pulleys on the top plate, and then are fixedly connected to the two sets of cross bars on the same side. In this way, when the piston rod of cylinder II is extended, the pulley wire rope makes the cross bar and the fishing car wire rope descend, and when the piston rod is retracted, the pulley wire rope makes the cross bar and the fishing car wire rope rise.In order to realize the linkage operation of the two cylinders, cylinder Ⅰ and cylinder Ⅱ are connected as a linkage whole through a three-position four-way manual reversing valve, an air pipe three-way joint Ⅰ and an air pipe three-way joint Ⅱ. The air inlet of the three-position four-way manual reversing valve is connected to the air pipe, and the downhole compressed air enters through the air pipe. The first air port of the three-position four-way manual reversing valve is connected to the first air port of cylinder Ⅱ and the second air port of cylinder Ⅰ through the air pipe three-way joint Ⅰ, then the first air port of cylinder Ⅱ and the second air port of cylinder Ⅰ are either simultaneously intake or simultaneously exhaust, the second air port of the three-position four-way manual reversing valve is connected to the second air port of cylinder Ⅱ and the first air port of cylinder Ⅰ through the air pipe three-way joint Ⅱ, then the second air port of cylinder Ⅱ and the first air port of cylinder Ⅰ are also either simultaneously intake or simultaneously exhaust. The specific operation of the present invention is as follows: the underground compressed air pipeline provides power to input air into the air pipe, and the air pipe inputs air into the linkage cylinder. According to the two states of the cross bar rising and falling, the linkage of cylinder I and cylinder II is also divided into two situations: ① When the cable car is running and the winch is not running, the two groups of cross bars and the car fishing wire rope need to fall onto the track. At this time, the three-position four-way manual reversing valve is turned to the right, and the first air port of the three-position four-way manual reversing valve supplies air to the first air port of cylinder II and the second air port of cylinder I through the air pipe three-way joint I, and the second air port of cylinder II and the first air port of cylinder I return air to the second air port of the three-position four-way manual reversing valve through the air pipe three-way joint II, forming a cycle, so that the piston rod of cylinder I retracts, the piston rod of cylinder II extends, the pulley wire rope brings the cross bar and the car fishing wire rope down, and the cross bar falls into a "V" shape. ” shape, the width becomes narrower, at this time the cable car can pass smoothly without getting stuck, and it can also play a safety protection role in intercepting sports cars; ② When the winch is running and the cable car is not running, the two sets of cross bars and the car fishing wire rope need to be lifted to the top plate position, at this time the three-position four-way manual reversing valve is turned to the left, and the first air port of the three-position four-way manual reversing valve supplies air to the second air port of cylinder II and the first air port of cylinder I through the air pipe three-way joint II, and the first air port of cylinder II and the second air port of cylinder I return air to the second air port of the three-position four-way manual reversing valve through the air pipe three-way joint I, forming a cycle, so that the piston rod of cylinder I extends, the piston rod of cylinder II retracts, the pulley wire rope rises with the cross bar and the car fishing wire rope, and the cross bar falls into an "I" shape, at this time the transportation width is expanded, ensuring that the winch can pass smoothly without getting stuck.

[0007] Compared with the prior art, the present invention has the following beneficial effects: the sloped net car catching device provided by the cable car of the present invention effectively expands the transportation width during winch transportation, avoids the phenomenon of the steel wire rope of the net car catching device scratching against the vehicle, and the resulting vehicle overturning and falling off the road and rope breaking and running away accidents, thereby greatly improving the safety factor; when the cable car is transporting people, the overall width of the net car catching device is effectively reduced to ensure that people can pass smoothly when riding in a hanging chair, eliminating safety hazards; and it has been successfully applied on site with good results. It is a safe and efficient running away protection device that conforms to the actual situation on site. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is the operating status diagram of the car scoop before improvement.

[0009] Figure 2 This is a schematic diagram of the effective width of the car scoop before improvement.

[0010] Figure 3 It is a schematic top view of the structure of the cross bar and the falling wire rope of the fishing vehicle of the present invention.

[0011] Figure 4 It is a top view schematic diagram of the structure in which the cross bar and the fishing car wire rope are lifted according to the present invention.

[0012] Figure 5 The figure is a principle diagram of the cylinder linkage when the cross bar and the fishing wire rope of the present invention fall.

[0013] Figure 6 The figure is a principle diagram of the cylinder linkage when the cross bar and the fishing wire rope of the present invention are lifted.

[0014] Figure 7 It is a schematic diagram of the effect of improving the effective transport width in a specific embodiment of the present invention.

[0015] The markings in the figure are as follows: 1-cross bar, 2-linkage rod, 3-cylinder I, 4-cylinder II, 5-fixed pulley, 6-pulley wire rope, 7-fishing wire rope, 8-energy absorber, 9-track, 10-trachea, 11-three-position four-way manual reversing valve, 12-trachea three-way connector I, 13-trachea three-way connector II. DETAILED DESCRIPTION

[0016] The present invention is further described below in conjunction with specific embodiments.

[0017] A cable car running slope net type car catching device, such as Figure 3~Figure 6As shown: it includes 6 cross bars 1, 4 linkage rods 2, two energy absorbers 8, cylinders I 3 and cylinders II 4. The cross bars 1 are made of angle irons. The two energy absorbers are symmetrically arranged with the center line of the tunnel as the axis. The power source of the car catching device is the underground compressed air pipeline; the 6 cross bars 1 are evenly divided into two groups, and the two groups of cross bars 1 are symmetrically distributed with the center line of the tunnel as the axis. The three cross bars 1 in each group are parallel to each other and connected as a whole through two evenly distributed linkage rods 2; each cross bar 1 in each group is hinged to the cross bar 1 symmetrical to it in the other group through a hinge; in the two groups of cross bars 1, The two symmetrical cross bars 1 located in the middle are connected as a whole through the cylinder Ⅰ3. The piston rod end of the cylinder Ⅰ3 is fixedly connected to one of the cross bars 1, and the tail cover of the cylinder Ⅰ3 is fixedly connected to the other cross bar 1. Two wire rope clamps are fixedly provided on each cross bar 1, and one end of a single car-catching steel wire rope 7 is clamped in the cross bar 1 through the wire rope clamp. Then, three car-catching steel wire ropes 7 are clamped in each group of cross bars 1, and the other ends of the three car-catching steel wire ropes 7 in each group are pressed by the energy absorber 8 on the same side. After the car-catching steel wire rope 7 is pressed by the energy absorber 8, , there is a tail rope of a certain length behind the energy absorber 8, the bottom surface of the energy absorber 8 is parallel to the slope of the tunnel, and the energy absorber 8 is fixed to the ground by multiple ground anchors; the cylinder II 4 is fixed to the top plate, and the end of its piston rod is fixedly connected to two pulley wire ropes 6, and two sets of fixed pulleys 5 are also arranged on the top plate. The two sets of fixed pulleys 5 are symmetrical with the center line of the tunnel as the axis, and are both arranged on the outside of the track 9. The two pulley wire ropes 6 are respectively passed around the two sets of fixed pulleys 5 on the top plate, and then are respectively fixedly connected to the two sets of cross bars 1 on the same side; the cylinder I 3 and the cylinder II 4 are connected by The three-position four-way manual reversing valve 11, the trachea three-way joint Ⅰ12 and the trachea three-way joint Ⅱ13 are connected as a linked whole. The air inlet of the three-position four-way manual reversing valve 11 is connected to the trachea 10, and the downhole compressed air enters through the trachea 10. The first air port of the three-position four-way manual reversing valve 11 is connected to the first air port of the cylinder Ⅱ4 and the second air port of the cylinder Ⅰ3 through the trachea three-way joint Ⅰ12. The second air port of the three-position four-way manual reversing valve 11 is connected to the second air port of the cylinder Ⅱ4 and the first air port of the cylinder Ⅰ3 through the trachea three-way joint Ⅱ13.

[0018] In this embodiment, the following are used: cylinder II4 is SC80×2500-LB cylinder, cylinder I3 is SC50×200-LB cylinder, three-position four-way manual reversing valve 11 is HV-04 three-position four-way manual reversing valve, air pipe 10 is PU1065Φ10mm air pipe 30m, air pipe three-way joint I12 and air pipe three-way joint II1 use 3PE10 air pipe three-way joint, fixed pulley 5 uses 2 Φ60mm fixed pulleys, crossbar 1 uses 6 0.9m crossbars (4# angle iron), and wire rope clamps use Φ28mm steel There are 12 wire rope clamps, the fishing car wire rope 7 is 90m of 6×37WS+FC-Φ26mm wire rope, the pulley wire rope 6 is 16m of 6×19S+FC-Φ6.3mm wire rope, and the energy absorber 8 is 2 YHC-ZDC2.5 pressure plate type buffer energy absorbers. Each energy absorber is fixed by 6 Φ20mm×1.8m ground anchors, and the anchoring force of each anchor rod is not less than 105KN; the length of each fishing car wire rope 7 is 30m, which is fixed by pressure plate type buffer energy absorbers on both sides of the track, and the length of the tail rope behind the energy absorber is 10m.

[0019] The specific operation of this embodiment is as follows: the underground compressed air pipeline provides power, inputs air into the air pipe 10, and the air pipe 10 inputs air into the linkage cylinder: ① When the cable car is running and the winch is not running, the two sets of cross bars 1 and the fishing car wire rope 7 need to fall onto the track, such as Figure 5 As shown, at this time, the three-position four-way manual reversing valve 11 is pulled to the right, and the first air port of the three-position four-way manual reversing valve 11 supplies air to the first air port of the cylinder Ⅱ4 and the second air port of the cylinder Ⅰ3 through the air pipe three-way joint Ⅰ12, and the second air port of the cylinder Ⅱ4 and the first air port of the cylinder Ⅰ3 return air to the second air port of the three-position four-way manual reversing valve 11 through the air pipe three-way joint Ⅱ13, forming a cycle, so that the piston rod of the cylinder Ⅰ3 retracts, the piston rod of the cylinder Ⅱ4 extends, the pulley wire rope 6 brings the cross bar 1 and the car fishing wire rope 7 down, the cross bar 1 falls into a "V" shape, the width becomes narrower, and the overall width is 1200mm. At this time, the cable car can pass smoothly without getting stuck, and it can also play a safety protection role in intercepting the sports car; ② When the winch is running and the cable car is not running, the two sets of cross bars 1 and the car fishing wire rope 7 need to be lifted to the top plate position, such as Figure 6As shown, at this time, the three-position four-way manual reversing valve 11 is moved to the left, and the first air port of the three-position four-way manual reversing valve 11 supplies air to the second air port of cylinder Ⅱ4 and the first air port of cylinder Ⅰ3 through the air pipe three-way joint Ⅱ13, and the first air port of cylinder Ⅱ4 and the second air port of cylinder Ⅰ3 return air to the second air port of the three-position four-way manual reversing valve 11 through the air pipe three-way joint Ⅰ12, forming a cycle, so that the piston rod of cylinder Ⅰ3 extends, the piston rod of cylinder Ⅱ4 retracts, the pulley wire rope 6 rises with the cross bar 1 and the car fishing wire rope 7, and the cross bar falls into an "I" shape. At this time, the transportation width is expanded to 1850mm, which ensures that the winch can pass smoothly without getting stuck. After the vehicle passes, the two sets of cross bars 1 and the car fishing wire rope 7 fall immediately, and the effect diagram is as shown Figure 7 shown.

[0020] The scope of protection claimed by the present invention is not limited to the above specific embodiments. For those skilled in the art, the present invention may have various deformations and changes. Any modifications, improvements and equivalent substitutions made within the concept and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable car running slope net type car catching device, characterized in that: It comprises 6 cross bars (1), 4 linkage bars (2), two energy absorbers (8), cylinder I (3) and cylinder II (4), wherein the cross bars (1) are made of angle iron, the two energy absorbers are symmetrically arranged with the center line of the tunnel as the axis, and the power source of the car catching device is the underground compressed air pipeline; The six cross bars (1) are evenly divided into two groups, and the two groups of cross bars (1) are symmetrically distributed with the center line of the laneway as the axis, and the three cross bars (1) in each group are parallel to each other and connected as a whole through two evenly distributed linkage rods (2); each cross bar (1) in each group is hinged to the cross bar (1) symmetrical to it in the other group through a hinge; in the two groups of cross bars (1), the two symmetrical cross bars (1) located in the middle position are also connected as a whole through a cylinder I (3), the piston rod end of the cylinder I (3) is fixedly connected to one of the cross bars (1), and the rear cover of the cylinder I (3) is fixedly connected to the other cross bar (1). The cross bars (1) are fixedly connected; two wire rope clamps are fixedly provided on each cross bar (1), and one end of a single car-catching steel wire rope (7) is clamped in the cross bar (1) through the wire rope clamp, so that three car-catching steel wire ropes (7) are clamped in each group of cross bars (1), and the other ends of the three car-catching steel wire ropes (7) in each group are pressed by the energy absorber (8) on the same side. After the car-catching steel wire rope (7) is pressed by the energy absorber (8), a tail rope of a certain length is located behind the energy absorber (8), and the bottom surface of the energy absorber (8) is parallel to the slope of the roadway. The energy absorber (8) is fixed to the ground through a plurality of ground anchors; The cylinder II (4) is fixed to the top plate, and the end of its piston rod is fixedly connected to two pulley wire ropes (6). The top plate is also provided with two sets of fixed pulleys (5). The two sets of fixed pulleys (5) are symmetrical about the center line of the tunnel and are both arranged on the outside of the track (9). The two pulley wire ropes (6) respectively pass around the two sets of fixed pulleys (5) on the top plate and are then fixedly connected to the two sets of cross bars (1) on the same side. The cylinder I (3) and the cylinder II (4) are connected to form a linkage whole through a three-position four-way manual reversing valve (11), a three-way air pipe joint I (12) and a three-way air pipe joint II (13); the air inlet of the three-position four-way manual reversing valve (11) is connected to the air pipe (10), and the downhole compressed air enters through the air pipe (10); the first air port of the three-position four-way manual reversing valve (11) is connected to the first air port of the cylinder II (4) and the second air port of the cylinder I (3) through the three-way air pipe joint I (12); the second air port of the three-position four-way manual reversing valve (11) is connected to the second air port of the cylinder II (4) and the first air port of the cylinder I (3) through the three-way air pipe joint II (13); The cylinder I (3) adopts SC50×200-LB, and the cylinder II (4) adopts SC80×2500-LB; The energy absorber (8) is a pressure plate type buffer energy absorber.

2. A cable car running slope net type car catching device according to claim 1, characterized in that: The air pipe (10) is a PU1065 air pipe with a diameter of 10 mm.

3. A cable car running slope net type car catching device according to claim 1, characterized in that: The energy absorber (8) is fixed to the ground by 6 Φ20 mm×1.8 m ground anchors.

Images