Mine car for coal mine conveying

Abstract

The invention discloses a mine car for coal mine conveying, which relates to the technical field of coal mine conveying and comprises a rail body, a car body base is in sliding fit with the guide rail body, a conveying box is rotatably connected to the guide car body base, and a protection mechanism is arranged at the bottom of the inner wall of the guide conveying box. Continuous freezing accumulation of the coal mine and the bottom of the inner wall of the conveying box is avoided. According to the coal mine anti-freezing device, by arranging the protection mechanism, when the bottom of the conveying box body is frozen, through cooperation of the anti-freezing piece, the discharging hole and the triggering assembly, the anti-freezing piece is broken, an anti-freezing agent flows out of the discharging hole, the anti-freezing agent forms an anti-freezing film on a small amount of frozen coal mine, and the problem that the coal mine is frozen again subsequently is effectively prevented; and meanwhile, the situation that part of coal remains at the bottom of the box every time is avoided, the problem that the coal mine is continuously accumulated at the bottom of the conveying box body is solved, the defects in the prior art are overcome, and the conveying efficiency of the coal mine is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of coal mine conveying technology, specifically to a coal mine conveying car. Background Technology

[0002] Coal mine cars are railway vehicles specifically designed for transporting coal, gangue (waste rock), materials, or personnel in underground mine roadways and on surface tracks. They are an indispensable "artery" transportation tool in the coal mine production system.

[0003] When in use, the mine car consists of guide rails, a base, a car body, and a door. During the transportation of coal, when the mine car moves to the designated position, the raised guide rail on one side pushes the guide rod on the side of the car body, causing the car body to tilt and the door to open. Then, the tilted car body automatically dumps the coal inside to the designated location, completing the coal transportation work.

[0004] While the aforementioned mine cars can effectively transport coal, in actual transport, when transporting relatively damp lignite or other moist coal, moisture accumulates at the bottom of the car body due to gravity. This makes the contact surface between the coal and the bottom of the car body quite wet. In cold weather or low-temperature environments, this wet contact surface is prone to freezing. As a result, each time the tilted car body is emptied, some coal freezes and sticks to the bottom of the car body, leaving some coal residue at the bottom each time. After the mine car is used several times, the residue layer accumulates thicker and thicker, significantly reducing the actual load capacity and affecting the efficiency of coal transportation. Summary of the Invention

[0005] In view of this, the present invention proposes a mine car for coal mine transportation to solve the problems in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a mine car for conveying coal mines, including a track body, a car body base slidably fitted on the track body, a conveying box rotatably connected on the car body base, and a protective mechanism provided at the bottom of the inner wall of the conveying box.

[0007] The protective mechanism includes a mounting box, which is fixedly connected to the conveyor box. A limit box is fixedly connected inside the mounting box. An antifreeze component is provided inside the limit box, and the antifreeze component is filled with antifreeze. A discharge hole is provided on the limit box. The protective mechanism includes a triggering component, which is in contact with the bottom of the coal mine. When the coal mine and the triggering component freeze, the triggering component is triggered when the conveyor box is unloading, causing the antifreeze in the antifreeze component to flow out from the discharge hole.

[0008] Preferably, the triggering assembly includes a trigger plate, which is slidably connected to the bottom of the inner wall of the conveying box. The trigger plate is located at the bottom of the mounting box, and the trigger plate and the mounting box form a sealed chamber. A push plate is fixedly connected to the top of the trigger plate, and the push plate is located inside the mounting box. A spring telescopic rod is fixedly connected to the mounting box, and one end of the spring telescopic rod abuts against the push plate. The push plate has a protrusion near the limiting box. When the trigger plate slides, it drives the protrusion of the push plate to insert into the limiting box.

[0009] Preferably, the push plate protrusion is fixedly connected with a plurality of conical spikes, the tip of each conical spike facing the antifreeze component.

[0010] Preferably, a protective plate is rotatably connected to the outer surface of the mounting box, and the protective plate is used to seal the discharge hole.

[0011] Preferably, the antifreeze component is made of a flexible material.

[0012] Preferably, the protective mechanism further includes an auxiliary component for supporting and limiting the antifreeze component. The auxiliary component includes a guide plate, which is fixedly connected to the bottom of the limiting box. A support grid is fixedly connected between the guide plate and the limiting box. A fixing buckle is rotatably connected to the limiting box. A support rod is fixedly connected to the limiting box. The fixing buckle engages with the support rod on the side near the support rod. The guide plate, support grid, fixing buckle, and support rod are arranged around the antifreeze component, and the outer surface of the antifreeze component is in contact with the guide plate, support grid, and fixing buckle.

[0013] Preferably, the guide plate is set with an inclined surface on the side near the antifreeze component to guide the antifreeze inside the antifreeze component to the discharge hole.

[0014] Preferably, the support grid has multiple slots, through which the antifreeze flows toward the discharge hole.

[0015] Preferably, the retaining buckle is arc-shaped.

[0016] Preferably, the mounting box includes a fixed mounting shell, which is fixedly connected to the conveyor box body. A detachable mounting shell is provided on the top of the fixed mounting shell, and the top of the detachable mounting shell is set as an inclined surface. The detachable mounting shell is fixedly connected to the fixed mounting shell by fastening bolts.

[0017] Compared with the prior art, the present invention provides a mine car for coal mine transportation, which has the following beneficial effects:

[0018] 1. This invention, by setting up a protective mechanism, when freezing occurs at the bottom of the conveyor box, uses the cooperation of antifreeze components, discharge holes, and triggering components to cause the antifreeze components to rupture and the antifreeze to flow out from the discharge holes. This allows the antifreeze to form an antifreeze film on the small amount of coal that has already frozen, effectively preventing subsequent refreezing. It also avoids the situation where some coal remains at the bottom of the box each time, reducing the problem of coal continuously accumulating at the bottom of the conveyor box, overcoming the shortcomings of the prior art, and ensuring the efficiency of coal conveying.

[0019] 2. This invention, through the setting of the protective plate, allows the protective plate to be squeezed during normal transportation in the coal mine, resulting in a pushing force on the protective plate towards the mounting box. Consequently, the protective plate and the mounting box will fit more closely, effectively preventing coal impurities from entering the discharge hole and clogging it. Furthermore, when the coal mine is dumping and the antifreeze flows out of the discharge hole, the antifreeze will push the protective plate to rotate outward, thereby creating a small gap between the protective plate and the mounting box, allowing the liquid to flow out from the gap for normal freezing protection.

[0020] 3. Through the cooperation of auxiliary components and mounting box, this invention not only guides the antifreeze to flow continuously from the discharge hole, but also prevents the antifreeze from sliding when the conical spike pierces it, ensuring the pressure when piercing the antifreeze and preventing the antifreeze from drying out and clogging the discharge hole, thus improving the reliability of the antifreeze during use and also ensuring the replacement of the antifreeze. Attached Figure Description

[0021] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0022] Figure 2 This is a cross-sectional view of the conveyor box of the present invention;

[0023] Figure 3 This is a partial cross-sectional view of the conveyor box of the present invention;

[0024] Figure 4 For the present invention Figure 3 Enlarged structural diagram at point A in the middle;

[0025] Figure 5 This is a cross-sectional view of the limiting box of the present invention;

[0026] Figure 6 This is a three-dimensional structural diagram of the mounting box of the present invention.

[0027] In the picture:

[0028] 100. Track body; 101. Car body base; 102. Conveyor box;

[0029] 200. Protective mechanism; 201. Mounting box; 202. Limiting box; 203. Antifreeze component; 204. Discharge hole; 205. Trigger plate; 206. Push plate; 207. Conical spike; 208. Spring telescopic rod; 209. Protective plate;

[0030] 211. Guide plate; 212. Support grid; 213. Fixing buckle; 214. Support rod;

[0031] 2011. Fix the mounting shell; 2012. Remove the mounting shell; 2013. Tighten the bolts. Detailed Implementation

[0032] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and implement the subject matter described herein, and changes may be made to the function and arrangement of the elements discussed without departing from the scope of this specification. Various processes or components may be omitted, substituted, or added as needed in the examples. Furthermore, some features described in the examples may be combined in other examples.

[0033] Example 1

[0034] like Figures 1 to 6 As shown, this embodiment provides a coal mine conveying car, including a track body 100, a car body base 101 slidably fitted on the track body 100, a conveying box 102 rotatably connected on the car body base 101, and a protective mechanism 200 provided at the bottom of the inner wall of the conveying box 102 to prevent coal from freezing and accumulating continuously at the bottom of the inner wall of the conveying box 102.

[0035] The protective mechanism 200 includes a mounting box 201, which is fixedly connected to the conveying box 102. A limit box 202 is fixedly connected inside the mounting box 201. An antifreeze component 203 is provided inside the limit box 202. The antifreeze component 203 is filled with antifreeze, which is liquid. A discharge hole 204 is provided on the limit box 202. The protective mechanism 200 includes a triggering component, which is in contact with the bottom of the coal mine. When the coal mine and the triggering component freeze, the triggering component is triggered when the conveying box 102 is unloaded, causing the antifreeze in the antifreeze component 203 to flow out from the discharge hole 204.

[0036] The triggering assembly includes a trigger plate 205, which is slidably connected to the bottom of the inner wall of the conveying box 102. The trigger plate 205 is located at the bottom of the mounting box 201, and the trigger plate 205 and the mounting box 201 form a sealed chamber. A push plate 206 is fixedly connected to the top of the trigger plate 205. The push plate 206 is located inside the mounting box 201. A spring telescopic rod 208 is fixedly connected to the mounting box 201. One end of the spring telescopic rod 208 abuts against the push plate 206. The push plate 206 has a protrusion near the limiting box 202. When the trigger plate 205 slides, it drives the protrusion of the push plate 206 to insert into the limiting box 202.

[0037] Furthermore, multiple conical spikes 207 are fixedly connected to the protrusion of the push plate 206, with the tip of each conical spike 207 facing the antifreeze component 203, so as to better pierce the antifreeze component 203.

[0038] Furthermore, a protective plate 209 is rotatably connected to the outer surface of the mounting box 201. The protective plate 209 is used to seal the discharge hole 204. During normal transportation of coal, the protective plate 209 is squeezed, so that the protective plate 209 is pushed in the direction of the mounting box 201. As a result, the protective plate 209 and the mounting box 201 will fit more closely, effectively preventing coal impurities from entering the discharge hole 204 and clogging it. When the coal is dumped and the antifreeze flows out of the discharge hole 204, the antifreeze will push the protective plate 209 to rotate outward, so that the protective plate 209 and the mounting box 201 will have a small gap, allowing the liquid to flow out through this gap for normal freezing protection.

[0039] Furthermore, the antifreeze component 203 is made of a flexible material, so that when the antifreeze component 203 is full of antifreeze, it is in an expanded state, so that when the antifreeze component 203 is punctured, the antifreeze can flow out of the antifreeze component 203 more effectively.

[0040] Furthermore, the protective mechanism 200 also includes auxiliary components for supporting and limiting the antifreeze component 203. The auxiliary components include a guide plate 211, which is fixedly connected to the bottom of the limiting box 202. A support grid 212 is fixedly connected between the guide plate 211 and the limiting box 202. A fixing buckle 213 is rotatably connected to the limiting box 202. A support rod 214 is fixedly connected to the limiting box 202. The fixing buckle 213 engages with the support rod 214 on the side near the support rod 214. The guide plate 211, support grid 212, fixing buckle 213 and support rod 214 are arranged around the antifreeze component 203, and the outer surface of the antifreeze component 203 is in contact with the guide plate 211, support grid 212 and fixing buckle 213.

[0041] Furthermore, the guide plate 211 is set with an inclined surface on the side near the antifreeze component 203 to guide the antifreeze in the antifreeze component 203 to the discharge hole 204, so as to better guide the antifreeze.

[0042] Furthermore, the support grid 212 has multiple slots. When the antifreeze flows to the discharge hole 204, it passes through the slots. The guide plate 211 can guide the antifreeze when the antifreeze component 203 breaks, so that the antifreeze continuously flows out of the discharge hole 204. The antifreeze component 203 remains on the upper part of the support grid 212, preventing the antifreeze component 203 from clogging the discharge hole 204 due to drying out.

[0043] Furthermore, the fixing buckle 213 is designed in an arc shape to fit the antifreeze component 203 when it expands, so as to better limit and support it.

[0044] Furthermore, the mounting box 201 includes a fixed mounting shell 2011, which is fixedly connected to the conveying box 102. A detachable mounting shell 2012 is provided on the top of the fixed mounting shell 2011. The top of the detachable mounting shell 2012 is set as an inclined surface. The detachable mounting shell 2012 is fixedly connected to the fixed mounting shell 2011 by fastening bolts 2013, which facilitates the replacement of the antifreeze component 203.

[0045] Example 2

[0046] like Figures 1 to 6 As shown, this embodiment provides a mine car for conveying coal mines, including a track body 100, a car body base 101 that is slidably fitted on the track body 100, a conveying box 102 that is rotatably connected to the car body base 101, and a protective mechanism 200 provided at the bottom of the inner wall of the conveying box 102 to prevent the coal from freezing and accumulating continuously at the bottom of the inner wall of the conveying box 102.

[0047] The protective mechanism 200 includes a mounting box 201, which is fixedly connected to the conveying box 102. A limit box 202 is fixedly connected inside the mounting box 201. An antifreeze component 203 is provided inside the limit box 202. The antifreeze component 203 is filled with antifreeze, which is liquid. A discharge hole 204 is provided on the limit box 202. The protective mechanism 200 includes a triggering component, which is in contact with the bottom of the coal mine. When the coal mine and the triggering component freeze, the triggering component is triggered when the conveying box 102 is unloaded. When the triggering component is triggered, the antifreeze in the antifreeze component 203 flows out from the discharge hole 204.

[0048] The triggering components include a temperature sensor, an electric push rod, and a pressure plate. The temperature sensor is fixedly connected to the top of the inner wall of the mounting box 201, and the electric push rod is fixedly connected to one side of the inner wall of the mounting box 201. The pressure plate is fixedly connected to the output end of the electric push rod. The pressure plate is slidably connected to the limiting box 202 and passes through the limiting box 202. The temperature sensor is electrically connected to the controller on the electric push rod. When the temperature sensor detects the set temperature, it sends a signal to the controller of the electric push rod. The controller controls the electric push rod to start, and then pushes the pressure plate through the output end of the electric push rod to crush the antifreeze component 203. Then, the antifreeze flows out from the discharge hole 204, so that an antifreeze film is formed at the bottom of the inner wall of the conveying box 102. The implementation of this embodiment can accurately protect against low temperatures, but the cost will be higher.

[0049] The working principle of all the content in the above embodiments is as follows:

[0050] Before use: Under normal circumstances, the coal mine is located inside the conveyor box 102. The trigger plate 205 separates the bottom of the inner wall of the conveyor box 102 from the coal mine. Under normal circumstances, the conveyor box 102 is tilted, and the coal mine is poured out of the conveyor box 102 and enters the designated position. At this time, because the contact surface between the trigger plate 205 and the coal mine is relatively smooth, the trigger plate 205 will slide slightly when the coal mine is poured out, and will also drive the push plate 206 to slide slightly. At this time, under the support of the spring telescopic rod 208, the protrusion of the push plate 206 and the conical spike 207 will not contact the antifreeze part 203.

[0051] The following describes the working principle and beneficial effects of the protective mechanism 200:

[0052] When a wet coal mine encounters cold weather or a low-temperature environment, the contact surface between the trigger plate 205 and the coal mine becomes sticky, increasing the roughness of the trigger plate 205. This causes the conveyor box 102 to tilt, and when the box door opens and the coal mine slides down from the trigger plate 205, the increased roughness leads to increased friction between the coal mine and the trigger plate 205. Consequently, the sliding of the coal mine causes the trigger plate 205 to slide a greater distance, which in turn causes the push plate 206 to slide a greater distance. The conical spike 207 moves a greater distance toward the antifreeze component 203, enters the limiting box 202, and inserts into the antifreeze component 203. The antifreeze component 203 is ruptured by the insertion of the conical spike 207, and the antifreeze inside the antifreeze component 203 flows out and enters the outside of the mounting box 201 through the discharge hole 204. An antifreeze film is formed on the upper surface of the trigger plate 205, effectively preventing the recurrence of icing during subsequent conveying operations.

[0053] It should be noted that the trigger plate 205 is located at the bottom of the conveyor box 102. When the door of the conveyor box 102 is opened, the trigger plate 205 can slide. That is, the protective mechanism 200 can be triggered to perform protective work when the coal is dumped, so as to ensure that the coal is in a relatively stable state inside the conveyor box 102 during the conveying process. When the coal is dumped, the trigger plate 205 is driven to slide by friction. With the cooperation of the spring telescopic rod 208, the sliding is irregular reciprocating. When there is no icing, the range of reciprocating sliding is small. When there is icing, the distance of reciprocating sliding will increase, which can cause the conical spike 207 to puncture the antifreeze part 203.

[0054] Furthermore, when the coal first freezes on the trigger plate 205, the trigger assembly will cause the antifreeze component 203 to rupture during the initial dumping of the coal. This protects the coal adhering to the trigger plate 205 while also providing some freezing effect. If the first dumping is completed before the trigger plate 205 has completely detached from the frozen coal layer, the first thawed coal and the second dumping can be discharged together during the second conveying operation, thus avoiding the need for subsequent normal conveying operations.

[0055] By setting up a protective mechanism 200, when freezing occurs at the bottom of the conveyor box 102, the antifreeze component 203, the discharge hole 204, and the triggering component work together to cause the antifreeze component 203 to rupture and the antifreeze to flow out from the discharge hole 204. This allows the antifreeze to form an antifreeze film on the small amount of coal that has already frozen, effectively preventing subsequent refreezing. It also avoids the situation where some coal remains at the bottom of the box each time, reducing the problem of coal accumulating at the bottom of the conveyor box 102. This overcomes the shortcomings of the existing technology and ensures the efficiency of coal conveying.

[0056] Furthermore, through the setting of the protective plate 209, during normal transportation of coal, the protective plate 209 is squeezed, so that the protective plate 209 is pushed towards the mounting box 201. As a result, the protective plate 209 and the mounting box 201 will fit more closely, effectively preventing coal impurities from entering the discharge hole 204 and clogging it. When the coal mine is dumping, when the antifreeze flows out of the discharge hole 204, the antifreeze will push the protective plate 209 to rotate outward, thereby creating a small gap between the protective plate 209 and the mounting box 201, allowing the liquid to flow out from the gap for normal freezing protection.

[0057] Furthermore, through the setting of auxiliary components, the guide plate 211 can guide the antifreeze when the antifreeze component 203 ruptures, so that the antifreeze continuously flows out from the discharge hole 204. Through the setting of the support grid 212, the fixing buckle 213 and the support rod 214, the antifreeze component 203 can be limited and supported, preventing the antifreeze component 203 from sliding displacement when the conical spike 207 pierces the antifreeze component 203, and ensuring the pressure when piercing the antifreeze component 203. At the same time, through the setting of the support grid 212, after the antifreeze component 203 is punctured, the antifreeze flows out from the groove in the support grid 212, while the antifreeze component 203 remains on the upper part of the support grid 212, preventing the antifreeze component 203 from clogging the discharge hole 204 due to drying out, and improving the reliability of the antifreeze component 203 during use.

[0058] Furthermore, through the configuration of the mounting box 201, which is divided into two parts, a fixed mounting shell 2011 and a detachable mounting shell 2012, after each use of the antifreeze component 203, the mounting box 201 can be opened by removing the fastening bolts 2013. Then, the fixing buckle 213 is pulled to rotate and disengage from the support rod 214. The used antifreeze component 203 is then removed, and the new antifreeze component 203 is placed above the support grid 212 and the guide plate 211. Then, the fixing buckle 213 is closed again and the detachable mounting shell 2012 is reinstalled, thereby completing the replacement of the antifreeze component 203 and ensuring the next protective operation.

[0059] The embodiments of the present invention have been described above, but the embodiments are not limited to the specific implementation methods described above. The specific implementation methods described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the embodiments described above, all of which are within the protection scope of the embodiments described above.

Claims

1. A coal mine conveying mine car, comprising a track body (100), a car body base (101) is slidingly fitted on the track body (100), and a conveying box body (102) is rotatably connected on the car body base (101), characterized in that, The inner wall bottom of the conveying box (102) is provided with a protection mechanism (200); The protection mechanism (200) comprises a mounting box (201) fixedly connected in the conveying box (102), a limiting box (202) fixedly connected in the mounting box (201), a freeze-proof piece (203) arranged in the limiting box (202), and a discharge hole (204) formed in the limiting box (202). The protection mechanism (200) comprises a trigger assembly, which is in contact with the coal mine bottom. When the coal mine is frozen with the trigger assembly, the trigger assembly is triggered during discharging of the conveying box (102), so that the freeze-proof agent in the freeze-proof piece (203) flows out of the discharge hole (204).

2. A coal mine transport mine car as claimed in claim 1, wherein: The trigger assembly comprises a trigger plate (205) slidingly connected to the inner wall bottom of the conveying box (102), the trigger plate (205) is located at the bottom of the mounting box (201), the trigger plate (205) and the mounting box (201) form a sealed chamber, the top of the trigger plate (205) is fixedly connected with a push plate (206), the push plate (206) is located in the mounting box (201), a spring telescopic rod (208) is fixedly connected to the mounting box (201), one end of the spring telescopic rod (208) abuts against the push plate (206), and a protrusion is arranged on the push plate (206) close to the limiting box (202). When the trigger plate (205) slides, the protrusion of the push plate (206) is inserted into the limiting box (202).

3. A coal mine transport mine car as claimed in claim 2, wherein: A plurality of conical spikes (207) are fixedly connected to the protrusion of the push plate (206), and the tips of the conical spikes (207) are directed towards the freeze-proof piece (203).

4. The coal mine transport mine car of claim 1, wherein: A protective sheet (209) is rotatably connected to the outer surface of the mounting box (201), and the protective sheet (209) is used for sealing the discharge hole (204).

5. The coal mine transport mine car of claim 1, wherein: The freeze-proof piece (203) is made of flexible material.

6. A coal mine transport mine car according to claim 1 wherein: The protection mechanism (200) further comprises an auxiliary assembly for supporting and limiting the freeze-proof piece (203). The auxiliary assembly comprises a guide plate (211) fixedly connected to the bottom of the limiting box (202), a support grid (212) fixedly connected between the guide plate (211) and the limiting box (202), a fixing buckle (213) rotatably connected to the limiting box (202), and a support rod (214) fixedly connected to the limiting box (202). The fixing buckle (213) is clamped with the support rod (214) on the side close to the support rod (214). The guide plate (211), the support grid (212), the fixing buckle (213), and the support rod (214) are arranged around the freeze-proof piece (203), and the outer surface of the freeze-proof piece (203) is in contact with the guide plate (211), the support grid (212), and the fixing buckle (213).

7. A coal mine transport mine car as defined in claim 6 wherein: The side of the guide plate (211) close to the freeze-proof piece (203) is arranged as an inclined surface, which is used for guiding the freeze-proof agent in the freeze-proof piece (203) to the discharge hole (204).

8. A coal mine transport mine car according to claim 6 wherein: A plurality of notches are formed in the support grid (212), and the antifreeze passes through the notches when flowing to the discharge hole (204).

9. A coal mine transport mine car according to claim 6 wherein: The fixing buckle (213) is arranged in an arc shape.

10. The coal mine transport mine car of claim 1, wherein: The mounting box (201) comprises a fixed mounting shell (2011), which is fixedly connected with the conveying box body (102). A dismounting mounting shell (2012) is arranged on the top of the fixed mounting shell (2011). The top of the dismounting mounting shell (2012) is arranged as an inclined surface. The dismounting mounting shell (2012) is fixedly connected with the fixed mounting shell (2011) through a fastening bolt (2013).

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