Automatic opening and closing type level road locking device for coal mine inclined shaft

Abstract

The invention discloses an automatic opening and closing type level road locking device for a coal mine inclined shaft. The flat road locking device comprises a base, an executing part and a driving part, the executing part can move between a first position and a second position, when the executing part is located at the first position, the executing part limits springback of a spring of the broken rope protector, when the executing part is located at the second position, the executing part relieves limitation on the springback of the spring of the broken rope protector, and the driving part is arranged on the base. The driving part is connected with the executing part and drives the executing part to move between the first position and the second position according to the running working condition of the trapped rail vehicle. Working state switching of the level road locking device between an inclined roadway and a flat roadway can be achieved only through a mechanical structure, the structure is simple, the maintenance cost is low, the device is suitable for the severe using environment of a coal mine, meanwhile, the defect that in the related technology, an operator must follow a vehicle is overcome, the operation safety is improved, and meanwhile the working efficiency is improved. And the application range of the trapped rail vehicle is widened.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of auxiliary transportation of coal mines, and particularly relates to an automatic opening and closing type flat track locking device for a coal mine inclined shaft. BACKGROUND

[0002] The flat track locking device is a safety auxiliary device applied to a broken rope protector of a steel wire rope traction rail car in a coal mine inclined shaft. The working principle of the broken rope protector is that when the rail car travels in the inclined shaft, if the steel wire rope is broken, the main pull rod of the broken rope protector will rebound under the action of the spring after losing the tension of the steel wire rope, thereby opening the pressure relief switch of the hydraulic system, and then causing the brake cylinder on the rail car to brake and stop the rail car in a short time. The spring on the broken rope protector in the inclined shaft will be in a stretched state due to the gravity component of the rail car, and once the spring is not subjected to tension on the flat track, the pressure relief valve will be opened, causing the rail car to brake on the flat track and making the vehicle unable to travel normally on the flat track. To avoid such situations, the related art uses a manual flat track locking device for the rail car, but the device has the possibility of misoperation, has safety hazards, and limits the application range of the rail car. SUMMARY

[0003] The present application is based on the discovery and understanding of the inventors of the following facts and problems:

[0004] The working principle of the manual flat track locking device in the related art is that when the rail car gradually enters the flat track from the inclined shaft, the operator on the rail car places a block between the traction head on the broken rope protector and the vehicle body through an operating rod, thereby avoiding the spring from fully rebounding to open the pressure relief valve. When the traction head clamps the block between the traction head and the vehicle body under the action of the spring, the operator can release the operating rod. When the rail car enters the inclined shaft from the flat track, the spring will gradually compress under the action of the gravity component of the rail car, thereby gradually separating the traction head and the vehicle body. The block of the flat track locking device will move away from the broken rope protector under the action of the return spring, so that the broken rope protector can normally trigger the braking device in the inclined shaft.

[0005] However, the main problems of the flat track locking device in the related art are as follows: first, the operation of the device is highly dependent on manual operation, and the operator needs to maintain long-term concentration when pressing the block, so there is a certain possibility of misoperation and certain safety hazards; second, when the rail car cannot be used due to maintenance or other problems, or when the rail car only carries materials, there is no one on the rail car to operate the flat track locking device, thereby greatly limiting the application range of the rail car.

[0006] The present application aims to at least solve one of the technical problems in the related art to some extent.

[0007] To this end, the embodiment of the present application proposes an automatic opening and closing type flat track locking device for coal mine inclined shaft, which overcomes the drawbacks of related art that an operator must follow the car, and widens the application range of the rail car.

[0008] The automatic opening and closing type flat track locking device for coal mine inclined shaft comprises a base, an execution member and a driving member, the execution member is movable between a first position and a second position, the execution member limits spring rebound of a rope breaking protector in the first position, the execution member releases the limitation of spring rebound of the rope breaking protector in the second position, the driving member is arranged on the base, the driving member is connected with the execution member, and the driving member drives the execution member to move between the first position and the second position according to the driving condition of the rail car.

[0009] In some embodiments, the driving member comprises a sliding block, the sliding block is slidably arranged on the base, the sliding block slides between a third position and a fourth position, the sliding block is driven to slide to the third position and the execution member is driven to move to the first position when the rail car drives in a flat roadway, and the sliding block is driven to slide to the fourth position and the execution member is driven to move to the second position when the rail car drives in an inclined roadway.

[0010] In some embodiments, the driving member further comprises a multi-stage connecting rod, the sliding block is connected with the execution member through the multi-stage connecting rod.

[0011] In some embodiments, the multi-stage connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod, one end of the first connecting rod is connected with the sliding block, the other end of the first connecting rod is rotatably connected with one end of the second connecting rod, the other end of the second connecting rod is rotatably connected with one end of the third connecting rod, the third connecting rod has a bending portion, the bending portion is rotatably connected with the base, and the other end of the third connecting rod is connected with the execution member.

[0012] In some embodiments, one end of the third connecting rod connected with the second connecting rod is provided with a supporting leg, so that the supporting leg supports on the base when the execution member is in the second position.

[0013] In some embodiments, a guide member is further arranged on the base, the sliding block is slidably arranged on the guide member, the guide member keeps the sliding block in the third position when the rail car drives in the flat roadway, and the sliding block slides to the fourth position on the guide member by gravity when the rail car drives in the inclined roadway.

[0014] In some embodiments, the guide comprises a guide rod, both ends of the guide rod are connected with the base through shaft seats, the guide rod is parallel to the base, and the guide rod slidably penetrates the sliding block.

[0015] In some embodiments, the guide rod is a plurality of guide rods, the plurality of guide rods are arranged in parallel, and the arrangement direction of the plurality of guide rods is perpendicular to the sliding direction of the sliding block.

[0016] In some embodiments, the guide further comprises a spring, the spring is sleeved on the guide rod, one end of the spring abuts against the sliding block, and the other end of the spring abuts against the shaft seat of the guide rod.

[0017] In some embodiments, the execution member is substantially U-shaped, so as to facilitate the execution member to be stopped between the connecting seat of the steel wire rope and the end plate of the rail car when the execution member is in the first position.

[0018] In summary, the automatic opening and closing type flat track locking device for coal mine inclined shafts of the embodiments of the present application can realize the switching of the working state of the flat track locking device between the inclined lane and the flat lane by using only a mechanical structure, has simple structure, low maintenance cost, is very suitable for the relatively harsh use environment of coal mines, and overcomes the disadvantages of related technologies that must have operating personnel following the car, widens the application range of the rail car, enables the rail car to transport materials alone, helps to improve the transfer efficiency of the rubber-tyred car and various materials in the auxiliary transportation of the inclined shaft, and can bring considerable economic benefits to coal mines.

[0019] In terms of production management, the device not only improves the transfer efficiency, safety and reliability of the transportation system, but also reduces the allocation of full-time operating personnel, reduces labor costs and management difficulty, and can create significant economic benefits for coal mine enterprises. In the long run, this technology not only meets the urgent needs of current coal mine safety production, but also provides reliable technical support for future mine personnel reduction construction, and has important popularization and application value. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a structure diagram of a flat lane locking state of the automatic opening and closing type flat track locking device for coal mine inclined shafts of the embodiments of the present application.

[0021] Figure 2 is a structure diagram of a broken rope braking state of the automatic opening and closing type flat track locking device for coal mine inclined shafts of the embodiments of the present application.

[0022] Figure 3 is a structure diagram of a flat lane locking state of the automatic opening and closing type flat track locking device for coal mine inclined shafts of the embodiments of the present application.

[0023] Figure 4is a schematic diagram of a working state of the automatic opening and closing type flat track locking device for coal mine inclined shafts according to an embodiment of the present application.

[0024] Figure 5 is a schematic diagram of a broken rope braking state of the automatic opening and closing type flat track locking device for coal mine inclined shafts according to an embodiment of the present application.

[0025] Reference signs:

[0026] 10 - connecting seat, 20 - end plate,

[0027] 1 - base, 2 - execution member, 3 - driving member, 31 - sliding block, 32 - connecting rod, 321 - first connecting rod, 322 - second connecting rod, 323 - third connecting rod, 3231 - bending part, 3232 - leg, 4 - guide member, 41 - guide rod, 42 - spring. DETAILED DESCRIPTION

[0028] The embodiments of the present application are described in detail below with reference to the accompanying drawings. The embodiments described below by referring to the accompanying drawings are exemplary and are intended to explain the present application, and cannot be understood as a limitation of the present application.

[0029] The automatic opening and closing type flat track locking device for coal mine inclined shafts according to an embodiment of the present application is described below in combination with the accompanying drawings.

[0030] As shown in Figures 1 to 5 , the automatic opening and closing type flat track locking device for coal mine inclined shafts according to an embodiment of the present application comprises a base 1, an execution member 2 and a driving member 3. The base 1 is installed on a flat plate of a track car, the driving member 3 is arranged on the base 1, and the driving member 3 is connected with the execution member 2. The execution member 2 is movable between a first position and a second position, and the driving member 3 drives the execution member 2 to move between the first position and the second position according to the driving working condition of the track car.

[0031] As shown in Figure 1 and Figure 3 , when the track car is driven by the steel wire rope to travel in the flat roadway, the driving member 3 drives the execution member 2 to move to the first position, and the execution member 2 limits the spring rebound of the broken rope protector, at this time, the execution member 2 is in a vertical posture under the action of the driving member 3.

[0032] For example, as shown in Figure 1 and Figure 2 , the execution member 2 is generally in a U shape, so as to stop between the connecting seat 10 of the steel wire rope and the end plate 20 of the track car when the execution member 2 is in the first position. When the track car is driven by the steel wire rope to stop in the flat roadway, the connecting seat 10 cannot be pulled back to the end plate 20 of the track car by the spring of the broken rope protector under the blocking action of the execution member 2, so the braking mechanism will not be triggered on the horizontal roadway.

[0033] AsFigure 2 , Figure 4 and Figure 5 As shown, when the wire rope-driven railcar travels in an inclined tunnel, the overall posture of the level track locking device will tilt along with the railcar. The drive unit 3 drives the actuator 2 to move to the second position. The actuator 2 releases the spring rebound restriction on the rope breakage protector. At this time, the actuator 2 is parallel to the base 1 under the action of the drive unit 3, and the connecting seat 10 can move freely. If the wire rope breaks at this time, the connecting seat 10 can return to the end plate 20 position of the railcar under the pull of the spring, thereby triggering the braking mechanism and protecting the vehicle safety.

[0034] Optionally, such as Figures 1 to 5 As shown, the driving component 3 includes a sliding block 31, which is slidably disposed on the base 1 and slides between a third position and a fourth position.

[0035] like Figure 1 and Figure 3 As shown, when the railcar travels in the level tunnel, the sliding block 31 slides to the third position and drives the actuator 2 to move to the first position.

[0036] like Figure 2 , Figure 4 and Figure 5 As shown, when the railcar travels in the inclined shaft, the sliding block 31 slides to the fourth position and drives the actuator 2 to move to the second position.

[0037] Optionally, such as Figures 1 to 5 As shown, the driving component 3 also includes a multi-stage linkage 32, and the sliding block 31 is connected to the actuator 2 through the multi-stage linkage 32. The sliding block 31 and the linkage 32 form a slider-linkage 32 mechanism, which enables the actuator 2 to move between a first position and a second position through the linkage 32 transmission.

[0038] The multi-stage linkage 32 includes a first linkage 321, a second linkage 322, and a third linkage 323. One end of the first linkage 321 is connected to the sliding block 31, and the other end of the first linkage 321 is rotatably connected to one end of the second linkage 322. The other end of the second linkage 322 is rotatably connected to one end of the third linkage 323. The third linkage 323 has a bent portion 3231, which is rotatably connected to the base 1. The other end of the third linkage 323 is connected to the actuator 2.

[0039] The sliding block 31 slides to the third position, and through the multi-stage linkage 32, the actuator 2 is flipped downwards to the first position. The sliding block 31 slides to the fourth position, and through the multi-stage linkage 32, the actuator 2 is flipped upwards to the second position. The bending portion 3231 is provided so that the actuator 2 has the optimal flipping angle.

[0040] It should be noted that the number and shape of the connecting rods 32 are not limited to the above shapes, and the connecting rods 32 can be used to switch the implement 2 between the first position and the second position. In addition, the rotatable connection described above can be achieved by a pin shaft, but is not limited to a pin shaft.

[0041] Further, one end of the third connecting rod 323 connected to the second connecting rod 322 is provided with a leg 3232, so that the leg 3232 supports the implement 2 on the base 1 when the implement 2 is in the second position. It can be understood that when the implement 2 is in the first position, the implement 2 is clamped between the connecting seat 10 and the end plate 20, and the implement 2 plays a certain supporting role. However, when the implement 2 is in the second position, the implement 2 is raised, and the leg 3232 provided on the third connecting rod 323 plays a supporting role, thereby ensuring the stability of the structure.

[0042] Optionally, the automatic opening and closing type flat track locking device for coal mine inclined shafts of the embodiment of the present application further comprises a guide member 4. The guide member 4 is arranged on the base 1, and the sliding block 31 is slidably arranged on the guide member 4.

[0043] As shown in Figure 1 and Figure 3 , when the rail car is driving in the flat roadway, the guide member 4 keeps the sliding block 31 in the third position.

[0044] As shown in Figure 2 , Figure 4 and Figure 5 , when the rail car is driving in the inclined roadway, the sliding block 31 slides to the fourth position on the guide member 4 by gravity.

[0045] For example, the guide member 4 comprises a guide rod 41, both ends of the guide rod 41 are connected to the base 1 through shaft seats, the guide rod 41 is parallel to the base 1, and the guide rod 41 slidably penetrates the sliding block 31. The sliding block 31 is not limited to sliding on the base 1 through the guide rod 41, and other forms such as a guide plate can also be used.

[0046] In addition, the guide rod 41 can be one or more, and the shape of the guide rod 41 is not limited to a cylindrical shape. If the guide rod 41 is multiple, the multiple guide rods 41 are arranged at intervals, and the arrangement direction of the multiple guide rods 41 is perpendicular to the sliding direction of the sliding block 31.

[0047] Optionally, the guide member 4 further comprises a spring 42, the spring 42 is sleeved on the guide rod 41, one end of the spring 42 abuts against the sliding block 31, and the other end of the compressed spring 42 abuts against the shaft seat of the guide rod 41.

[0048] As shown in Figure 1 and Figure 3 , when the rail car is driving in the flat roadway, the elastic force of the spring 42 keeps the sliding block 31 in the third position.

[0049] As Figure 2 , Figure 4 and Figure 5 shown, when the car rail vehicle travels in the inclined lane, the gravity component force of the sliding block 31 overcomes the elastic force of the spring 42, so that the sliding block 31 slides to the fourth position.

[0050] Among them, the spring 42 can be in compression state all the time, as Figures 1 to 5 shown, at this time the spring 42 is arranged between the sliding block 31 and the shaft seat of the guide rod 41 away from the actuator 2. Alternatively, the spring 42 can also be in tension state all the time, at this time the spring 42 is arranged between the sliding block 31 and the shaft seat of the guide rod 41 close to the actuator 2.

[0051] In summary, the automatic opening and closing type flat lane locking device for coal mine inclined shaft of the embodiment of the present application can realize the working state switching of the flat lane locking device between the inclined lane and the flat lane by using only mechanical structure, which is simple in structure, low in maintenance cost, very suitable for the relatively harsh use environment of coal mine, and overcomes the disadvantages that the related technologies must have operators following the vehicle, widens the application range of the car rail vehicle, and enables the car rail vehicle to transport materials alone, which helps to improve the transfer efficiency of the inclined shaft auxiliary transportation to the rubber-tyred vehicle and various materials, and can bring considerable economic benefits to the coal mine.

[0052] In terms of production management, the device not only improves the transfer efficiency, safety and reliability of the transportation system, but also reduces the allocation of full-time operators, reduces labor costs and management difficulty, and can create significant economic benefits for coal mine enterprises. In the long run, this technology not only meets the urgent needs of current coal mine safety production, but also provides reliable technical support for future mine personnel reduction construction, and has important popularization and application value.

[0053] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0054] In addition, the terms "first", "second", etc. are used only to describe different instances, and are not used to indicate or imply relative importance or a number of indications of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0055] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected or in communication with each other; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through an intermediate medium. Moreover, the first feature "above", "above" and "above" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0057] In the present application, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, those skilled in the art can combine and combine different embodiments or examples described in the present specification and the features of different embodiments or examples, without contradiction.

[0058] Although the embodiments of the present application have been shown and described above, it is understood that the above embodiments are exemplary and cannot be construed as limiting the present application, and those skilled in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. An automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines, characterized in that, The device includes a base, an actuator, and a drive unit. The actuator is movable between a first position and a second position. In the first position, the actuator restricts the spring return of the rope breakage protector. In the second position, the actuator releases the restriction on the spring return of the rope breakage protector. The drive unit is located on the base and connected to the actuator. The drive unit drives the actuator to move between the first position and the second position according to the driving conditions of the railcar.

2. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to claim 1, characterized in that, The driving component includes a sliding block slidably disposed on the base. The sliding block slides between a third position and a fourth position. When the railcar travels in a level tunnel, the sliding block slides to the third position and drives the actuator to move to the first position. When the railcar travels in an inclined tunnel, the sliding block slides to the fourth position and drives the actuator to move to the second position.

3. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to claim 2, characterized in that, The drive unit also includes multi-stage linkages, and the sliding block is connected to the actuator through the multi-stage linkages.

4. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to claim 3, characterized in that, The multi-stage linkage includes a first linkage, a second linkage, and a third linkage. One end of the first linkage is connected to the sliding block, and the other end of the first linkage is rotatably connected to one end of the second linkage. The other end of the second linkage is rotatably connected to one end of the third linkage. The third linkage has a bent portion, which is rotatably connected to the base. The other end of the third linkage is connected to the actuator.

5. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to claim 4, characterized in that, The third link has a support leg at one end connected to the second link, so that the support leg is supported on the base when the actuator is in the second position.

6. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to claim 2, characterized in that, It also includes a guide member disposed on the base, and the sliding block is slidably disposed on the guide member. When the railcar travels in a level lane, the guide member keeps the sliding block in a third position. When the railcar travels in an inclined lane, the sliding block slides on the guide member to the fourth position by its own weight.

7. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to claim 6, characterized in that, The guide member includes a guide rod, the two ends of which are connected to the base via a bearing. The guide rod is parallel to the base and slidably passes through the sliding block.

8. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to claim 7, characterized in that, The guide rods are multiple in number and are arranged at intervals. The arrangement direction of the guide rods is perpendicular to the sliding direction of the sliding block.

9. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to claim 7, characterized in that, The guide component also includes a spring, which is sleeved on the guide rod. One end of the spring abuts against the sliding block, and the other end of the spring abuts against the shaft seat of the guide rod.

10. The automatic opening and closing type horizontal track interlocking device for inclined shafts in coal mines according to any one of claims 1-9, characterized in that, The actuator is generally U-shaped so that when the actuator is in the first position, it stops between the wire rope connector and the end plate of the railcar.

Images