Track crossheading car stopping device for coal mine

Abstract

The utility model relates to the technical field of mine rail transportation, and particularly discloses a rail crossheading car stopping device for a coal mine, which comprises a first car stopping piece used for stopping a tramcar of a running car, and the first car stopping piece comprises a car stopping plate installed on the inner top of a rail crossheading in a hinged mode and a non-return plate vertically and fixedly connected to the inner top of the rail crossheading. The non-return plate is located on the side, close to the inclined low side of the track crossheading ramp, of the car stopping plate, the close side faces of the non-return plate and the car stopping plate can be connected in an attached mode, the distance between the bottom end of the car stopping plate and the track crossheading ramp is smaller than the height of a mine car, and the distance between the bottom end of the non-return plate and the track crossheading ramp is larger than the height of the mine car. A second car stopping piece located below the first car stopping piece is embedded in the track crossheading ramp, and the problems that a traditional car stopping device installed in a track crossheading is insufficient in protection strength, a running mine car cannot be effectively stopped, and potential safety hazards exist are solved.

Description

Technical Field

[0001] The present application relates to the technical field of mine rail transportation, and specifically discloses a vehicle blocking device for a rail chute used in a coal mine. Background Art

[0002] A mine car is a narrow-gauge railway transport vehicle used to transport bulk materials such as coal, ore and waste rock in mines. It is a special vehicle for mine rail transportation and is generally towed by an endless rope winch or hoist. In the process of towing the mine car, the wire rope bears the entire weight of the mine car and the materials. When the wire rope is worn beyond the limit or the mine car encounters an obstruction during lifting, it may cause the wire rope to break, resulting in a runaway car and causing a safety accident, especially in a rail transportation system with a large slope angle.

[0003] The car blocking device is mainly used in the inclined track channel. Generally, the device is installed at the slope of the mine track channel to block the mine car that has a runaway accident. However, the existing car blocking device has only one protection, and the safety factor is low. If the slope of the mine track channel is large, the runaway mine car will have a strong impact, and the one protection provided by the car blocking device can not provide enough protection strength, so it is difficult to effectively completely block the runaway mine car, which poses a safety hazard. Therefore, in view of this, the inventor provides a coal mine track channel car blocking device to solve the above problem. Utility Model Content

[0004] The utility model aims to solve the problem that the protection strength of the vehicle blocking device installed in the conventional track chute is insufficient, the vehicle can not be effectively stopped from running, and there is a potential safety hazard.

[0005] In order to achieve the above-mentioned purpose, the basic scheme of the utility model provides a rail chute car blocking device for coal mines, including a first car blocking member for intercepting a running mine car, the first car blocking member including a car blocking plate hingedly mounted on the inner top of the rail chute and a non-return plate vertically fixed to the inner top of the rail chute, the non-return plate is located on the side of the car blocking plate close to the inclined low side of the rail chute ramp, the non-return plate and the side surfaces of the car blocking plate close to each other can be fitted and connected, the distance between the bottom end of the car blocking plate and the rail chute ramp is smaller than the height of the mine car, the distance between the bottom end of the non-return plate and the rail chute ramp is larger than the height of the mine car, and a second car blocking member located below the first car blocking member is buried on the rail chute ramp.

[0006] The principles and effects of this basic solution are:

[0007] 1. Compared with the prior art, the utility model hinges the baffle plate with the inner top of the track so that the baffle plate can rotate freely in the track chute. At the same time, the baffle plate is limited by the non-return plate, and the rotation range of the baffle plate is limited to 90 degrees. Not only the baffle plate rotates in the direction of the mine car's forward movement when the mine car goes up the ramp, but also when the mine car runs away on the reverse ramp, the mine car can be blocked by the cooperation of the baffle plate and the non-return plate to achieve the purpose of preventing the mine car from running away. The structural strength of the baffle plate and the non-return plate is high and the blocking effect is good. By arranging the second baffle under the first baffle, two blocking guarantees are provided for the mine car to avoid the mine car running away and causing safety accidents. The problem that the traditional baffle device installed in the track chute is insufficient in protection strength and cannot effectively stop the running mine car, which poses a safety hazard.

[0008] Furthermore, the bottom of the anti-return plate is not higher than the middle of the car-blocking plate. By setting the height of the anti-return plate, the protection strength of the car-blocking plate is further improved, and the effect of the car-blocking plate on the mine car is strengthened.

[0009] Furthermore, the second vehicle blocking member includes a support box embedded in the surface of the track groove, a box cover hinged to one end of the support box, a cover opening mechanism installed between the box cover and the support box, a pressure sensor and a controller arranged at the bottom of the side of the vehicle blocking plate away from the check plate, the top surface of the support box is provided with a first groove for accommodating the box cover and a second groove for accommodating the cover opening mechanism in sequence, the two sides of one end of the box cover are hinged to the two sides of one end of the first groove close to the top of the ramp, the cover opening mechanism includes an electric telescopic rod with one end mounted and connected to the inner side wall of the second groove and a support top rod hinged between the free end of the electric telescopic rod and the inner side of the box cover, and the pressure sensor and the electric telescopic rod are both electrically connected to the controller. By providing the box cover, the pressure sensor and the cover opening mechanism, it is convenient for the vehicle blocking plate to block the mine car while the mine car relies on the vehicle blocking plate to trigger the pressure sensor and the electric telescopic rod to move, so that the electric telescopic rod is extended to drive the rotation of the support top rod, and the box cover is lifted by the support top rod to further block the mine car, and the double automatic vehicle blocking guarantee is used to ensure that the mine car is prevented from running away and avoid safety accidents.

[0010] Furthermore, the bottom of the anti-return plate is symmetrically provided with rounded corner structures on both sides. The rounded corner structures are provided to facilitate the contact between the structures, and prevent the mine car from colliding and rubbing with the structure of the anti-return plate during the process of ascending the ramp, thereby preventing the structure from being damaged.

[0011] Furthermore, a through groove is provided on the inner side of the baffle plate. By providing the through groove, the burden of the baffle plate on the mine car on the mine car ascending ramp is reduced.

[0012] Furthermore, a hinge seat is provided at the inner top of the track slot, the top of the baffle plate is hinged to the hinge seat, and one end of the hinge seat is fixedly connected to the anti-return plate. By providing the hinge seat and fixing it to the anti-return plate, it is not only convenient to install the baffle plate, but also convenient to fit and limit the baffle plate to the anti-return plate, thereby providing side support for the baffle plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It shows a structural schematic diagram of a track chute blocking device for coal mines proposed in an embodiment of the present application in a working state of a first blocking member;

[0015] Figure 2 It shows a structural schematic diagram of a track chute blocking device for coal mines proposed in an embodiment of the present application in a working state of a second blocking member;

[0016] Figure 3 A schematic diagram of the structure of a track chute blocking device for a coal mine proposed in an embodiment of the present application in a normal working state of a mine car is shown;

[0017] Figure 4 A structural schematic diagram of an opening mechanism of a track chute blocking device for a coal mine proposed in an embodiment of the present application is shown. DETAILED DESCRIPTION

[0018] In order to further explain the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the specific implementation method, structure, characteristics and effects of the present invention are described in detail below in combination with the accompanying drawings and preferred embodiments.

[0019] The figure marks in the drawings of the specification include: mine car 1, track chute 2, car baffle 3, check plate 4, support box 5, box cover 6, pressure sensor 7, chute ramp 8, first groove 9, second groove 10, electric telescopic rod 11, support top rod 12, rounded corner structure 13, hinged seat 14, through groove 15.

[0020] A track chute blocking device for coal mines, for example Figure 1As shown: it includes a first car stopper for intercepting a running car 1, the first car stopper includes a car stopper plate 3 hingedly mounted on the inner top of a track chute 2 and a check plate 4 vertically fixed to the inner top of the track chute 2, the check plate 4 is located on the left side of the car stopper plate 3 close to the inclined low side of the ramp of the track chute 2, the check plate 4 and the car stopper plate 3 are close to the side surface can be fitted and connected, the distance between the bottom end of the car stopper plate 3 and the ramp of the track chute 2 is less than the height of the mine car 1, the distance between the bottom end of the check plate 4 and the ramp of the track chute 2 is greater than the height of the mine car 1, and a second car stopper located below the first car stopper is buried on the ramp of the track chute 2, wherein, as Figure 3 As shown, according to the on-site conditions of the track chute 2, the first and second stoppers can be installed at the positions where the mine car 1 is most likely to run away, including but not limited to being installed above the top of the chute ramp 8, or installed above the bottom of the chute ramp 8.

[0021] Among them, Figure 1 As shown, the bottom of the anti-return plate 4 is not higher than the middle of the baffle plate 3. Figure 2 and Figure 4 As shown, the second vehicle-blocking member includes a support box 5 buried in the surface of the track chute 2, a box cover 6 hinged to the right end of the support box 5, a cover-opening mechanism installed between the box cover 6 and the support box 5, a pressure sensor 7 and a controller arranged at the bottom of the right side of the vehicle-blocking plate 3, the controller includes but is not limited to a PLC controller, the structural strength of the support box 5 and the box cover 6 are sufficient to support the mine car 1 to run uphill and downhill normally on the chute ramp 8, the top surface of the support box 5 is provided with a first groove 9 for accommodating the box cover 6 and a second groove 10 for accommodating the cover-opening mechanism, and the two sides of the right end of the box cover 6 are hinged to the two sides of the right end of the first groove 9. Figure 4 As shown, the cover opening mechanism includes an electric telescopic rod 11 whose right end is installed and connected to the right inner wall of the second groove 10 and a supporting top rod 12 hinged between the left end of the electric telescopic rod 11 and the inner side of the box cover 6. The pressure sensor 7 and the electric telescopic rod 11 are both electrically connected to the controller.

[0022] Among them, Figure 3 As shown, rounded structures 13 are symmetrically provided on both sides of the bottom of the anti-return plate 4. Figure 2 As shown, a through groove 15 is provided on the inner side of the baffle plate 3, and a hinge seat 14 is provided on the inner top of the track groove 2. Figure 3 As shown, the top of the baffle plate 3 is hinged to the hinge seat 14 , and the left end of the hinge seat 14 is fixedly connected to the anti-return plate 4 .

[0023] In the specific implementation process of the present utility model, when the mine car 1 moves uphill on the chute ramp 8, the wheels of the mine car 1 roll on the chute ramp 8 and the untriggered second car blocker. At the same time, as the mine car 1 goes up, the car blocker 3, which was originally in a free vertical downward state, is pushed to rotate counterclockwise. When the mine car 1 leaves the car blocker 3 and continues to go up along the chute ramp 8, the car blocker 3 rotates clockwise and returns to the free vertical downward state. When the mine car 1 runs away, it rushes down along the chute ramp 8, and the top left side of the mine car 1 hits the baffle plate 3 and the pressure sensor 7 on the right side of the baffle plate 3. First, the baffle plate 3 intercepts and stops the mine car 1, and then the pressure sensor 7 converts the signal and transmits it to the controller. The controller immediately controls the electric telescopic rod 11 to retract. As the electric telescopic rod 11 retracts, the supporting top rod 12 rotates counterclockwise around the left end of the electric telescopic rod 11, and the supporting top rod 12 gradually tends to be upright, thereby propping up the box cover 6, so that the box cover 6 rotates clockwise around the right end of the supporting box 5. As the box cover 6 is raised, the bottom left side of the mine car 1 is supported and blocked, thereby completely blocking the downward movement trend of the mine car 1. While the baffle plate 3 blocks the mine car 1, the check plate 4 provides support for the baffle plate 3.

[0024] Compared with the prior art, the utility model provides a hinge connection between the baffle plate 3 and the inner top of the track, so that the baffle plate 3 can rotate freely in the track trough 2, and at the same time, the anti-return plate 4 is provided to limit the baffle plate 3 and limit the rotation range of the baffle plate 3 to 90 degrees, which not only realizes that the baffle plate 3 rotates with the forward direction of the mine car 1 when the mine car 1 goes up the ramp, but also when the mine car 1 runs away on the reverse ramp, the mine car 1 can be blocked by the cooperation of the baffle plate 3 and the anti-return plate 4, so as to achieve the purpose of preventing the mine car 1 from running away. The structural strength of the baffle plate 3 and the anti-return plate 4 is high, and the blocking effect is good. At the same time, a A second car blocking component is arranged, through the box cover 6, the pressure sensor 7 and the cover opening mechanism, so that when the car blocking plate 3 blocks the mine car 1, the mine car 1 relies on the car blocking plate 3 to trigger the pressure sensor 7 and the electric telescopic rod 11 to move, so that in the process of extending the electric telescopic rod 11, the support top rod 12 is driven to rotate, and the box cover 6 is lifted by the support top rod 12 to further block the mine car 1. Through the double automatic car blocking protection, it is ensured that the mine car 1 is prevented from running away, and safety accidents are avoided. The problem that the car blocking device installed in the traditional track chute is insufficient in protection strength and cannot effectively stop the running mine car, which poses a safety hazard.

[0025] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A track chute blocking device for coal mines, characterized in that: It includes a first car stopper for intercepting a running mine car, the first car stopper includes a car stopper plate hingedly installed on the inner top of the track chute and a non-return plate vertically fixed to the inner top of the track chute, the non-return plate is located on the side of the car stopper close to the inclined low side of the track chute ramp, the non-return plate and the car stopper plate are close to the side surface can be connected in a close fit, the distance between the bottom end of the car stopper plate and the track chute ramp is smaller than the height of the mine car, the distance between the bottom end of the non-return plate and the track chute ramp is larger than the height of the mine car, and a second car stopper is buried on the track chute ramp and is located below the first car stopper.

2. A track chute blocking device for coal mines according to claim 1, characterized in that: The bottom of the anti-return plate is not higher than the middle part of the vehicle baffle plate.

3. A track chute blocking device for coal mines according to claim 1, characterized in that: The second vehicle-blocking component includes a supporting box buried in the surface of the track groove, a box cover hinged to one end of the supporting box, a cover-opening mechanism installed between the box cover and the supporting box, a pressure sensor and a controller arranged at the bottom of the side of the vehicle-blocking plate away from the anti-return plate, and the top surface of the supporting box is provided with a first groove for accommodating the box cover and a second groove for accommodating the cover-opening mechanism in sequence, and both sides of one end of the box cover are hinged to both sides of one end of the first groove close to the top of the ramp, and the cover-opening mechanism includes an electric telescopic rod with one end mounted and connected to the inner side wall of the second groove and a supporting top rod hinged between the free end of the electric telescopic rod and the inner side of the box cover, and the pressure sensor and the electric telescopic rod are both electrically connected to the controller.

4. A track chute blocking device for coal mines according to claim 3, characterized in that: Rounded corner structures are symmetrically arranged on both sides of the bottom of the anti-return plate.

5. A track chute blocking device for coal mines according to claim 1 or 3, characterized in that: A through groove is arranged on the inner side of the vehicle baffle.

6. A track chute blocking device for coal mines according to claim 3, characterized in that: The inner top of the track groove is provided with a hinge seat, the top of the car blocking plate is hinged to the hinge seat, and one end of the hinge seat is fixedly connected to the anti-return plate.

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