An unmanned electric locomotive for use in coal mines

Abstract

The present application relates to the technical field of electric locomotives for mining, and discloses an unmanned electric locomotive for use in coal mines, including a frame, the top of the frame is movably connected to a support member, and the middle of the bottom end of the support member forms a transmission connection with the frame through an elastic member, and at the same time, a first connecting rod is pinned on the connecting shaft of the driven steel wheel group, and the other end of the first connecting rod is pinned to a top column whose outer surface contacts the top of the inner side of the track, and a second connecting rod is pinned to the middle of the first connecting rod, and the other end of the second connecting rod is pinned to the middle of the bottom end of the support member. The present application provides an unmanned electric locomotive for use in coal mines, and the arrangement of the support member and its upper structure can force the top column to rotate and move to form a squeeze contact with the top of the inner side of the track when the electric locomotive is in an uphill running state, so that when it is pulling and transporting materials such as coal and gangue upward, the problem of its traction force being reduced due to the tilt of the electric locomotive will not occur.

Description

Technical Field

[0001] The present application relates to the technical field of mining electric locomotives, and in particular to an unmanned electric locomotive for use in underground coal mines. Background Art

[0002] Electric locomotives are a type of traction device for rail transport vehicles. They can transport people or objects over long distances through the laid tracks. In coal mining operations, electric locomotives are an indispensable and important transportation equipment for the transportation of coal, gangue, materials, equipment and personnel, which is affected by the mining depth and area.

[0003] However, in coal mine transportation operations, because coal, gangue and other materials need to be transported to the ground, the transportation track of the mining electric locomotive tends to extend upward as a whole. When the coal, gangue and other materials are pulled upward, the friction between the steel wheel and the track is easily reduced and the traction is reduced due to the upward tilt of the electric locomotive, which poses a great safety hazard in the process of traction and transportation.

[0004] In order to avoid the occurrence of slipping accidents, the only options are to reduce the traction load of the electric locomotive, or to extend the track to reduce the slope. However, this method greatly increases the transportation cost of materials such as coal and gangue, and has poor stability and reliability.

[0005] Therefore, there is an urgent need for an electric locomotive for use in coal mines to solve the defects of the above-mentioned existing electric locomotives in actual use. Summary of the invention

[0006] The present application proposes an unmanned electric locomotive for use underground in coal mines, which has the function of automatically adjusting the friction between the steel wheels and the track on the electric locomotive based on the change in the slope of the transport track, so that when pulling and transporting materials such as coal and gangue upward, the friction and traction will not be reduced due to the tilt of the electric locomotive, and the safety and reliability are relatively high. It is used to solve the problem that in the existing electric locomotives in coal mine transportation operations, due to the need to transport materials such as coal and gangue to the ground, the transportation track of the mining electric locomotive tends to extend upward as a whole, and when pulling and transporting materials such as coal and gangue upward, the friction between the steel wheels and the track is easily reduced and the traction is reduced due to the upward tilt of the electric locomotive, resulting in a large safety hazard in the process of traction and transportation.

[0007] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: an unmanned electric locomotive for use in coal mines, comprising a frame, a group of driving components are fixedly installed at the upper and lower ends of the right side of the frame, and a driving steel wheel is transmission-connected to the output shaft of the driving component, a driven steel wheel group is provided on the left side of the frame, and the frame is supported on an "I"-shaped track arranged in the coal mine shaft through the driving steel wheel and the driven steel wheel group, the top of the frame is movably connected to a supporting member, and a box structure for arranging various accessories is fixedly installed on the top of the supporting member, and a transmission connection is formed between the middle part of the bottom end of the supporting member and the frame through an elastic member, and at the same time, a first connecting rod is pinned on the connecting shaft of the driven steel wheel group, and the other end of the first connecting rod is pinned to a top column whose outer surface contacts the inner top of the track, a second connecting rod is pinned to the middle part of the first connecting rod, and the other end of the second connecting rod is pinned to the middle part of the bottom end of the supporting member.

[0008] Furthermore, the pin connection point between the second connecting rod and the first connecting rod is located at a position which takes the connecting shaft of the driven steel wheel group as the starting point and occupies two-thirds of the total length of the first connecting rod.

[0009] Furthermore, the top column is made of hard metal material, and the outer surface of the top column and the top of the inner side of the track are initially in a state of non-pressure contact.

[0010] Furthermore, the elastic member is a constant pressure elastic member, and its elastic force can be adjusted according to the total weight of the supporting member and the upper body structure, thereby ensuring that when the frame and the structure thereon are tilted, the top column can be triggered and apply corresponding pressure to the top of the inner side of the track.

[0011] Furthermore, the elastic force of the elastic member is greater than the friction resistance between the supporting member and the box structure thereon and the top of the frame in a horizontal state.

[0012] Furthermore, the second connecting rod adopts a threaded telescopic rod structure design, and the length of the second connecting rod can be flexibly adjusted according to the wear of the top column to ensure that the top column and the track are always in a state of pressure-free contact.

[0013] The present invention application has the following technical effects:

[0014] The present application provides an unmanned electric locomotive for use underground in coal mines. With respect to the arrangement of the support member and the structure thereon, when the electric locomotive is in an uphill running state, the gravity of the support member and the car body structure thereon can be used to force it to move toward one side of the driving component, and to force the top column to rotate and move to form an extrusion contact with the top of the inner side of the track, and to apply downward pressure on the frame and the structure thereon in the opposite direction, so as to effectively increase the friction between the driving steel wheel, the driven steel wheel group and the track, thereby enhancing the traction force of the electric locomotive when going uphill, so that when the electric locomotive is towing and transporting materials such as coal and gangue upward, the traction force will not be reduced due to the tilt of the electric locomotive. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0016] The present application can be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 A top view of the structure of the present invention;

[0019] Figure 3 It is a front cross-sectional view of the structure of the present invention;

[0020] Figure 4 It is a partial view of the right side of the structure of the present invention.

[0021] In the figure: 1, frame; 2, driving component; 3, driving steel wheel; 4, driven steel wheel group; 5, supporting member; 6, track; 7, elastic member; 8, first connecting rod; 9, second connecting rod; 10, top column. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0023] like Figure 1 , Figure 2As shown, an unmanned electric locomotive for use in coal mines comprises a frame 1, a group of driving components 2 are fixedly installed at the upper and lower ends of the right side of the frame 1, and a driving steel wheel 3 is drivingly connected to the output shaft of the driving component 2, wherein the driving component 2 adopts a DC series-excited motor and is powered by a battery or a pantograph line, a driven steel wheel group 4 is provided on the left side of the frame 1, and when the electric locomotive performs normal traction and transportation operations, the driven steel wheel group 4 is located in the front in the forward direction, and the driving steel wheel 3 is located at the rear, and the frame 1 is supported on an "I"-shaped track 6 arranged in the coal mine shaft by the driving steel wheel 3 and the driven steel wheel group 4, and then when the driving component 2 is started, the frame 1 and the structure thereon can be driven to move along the track of the track 6, as shown in FIG. Figure 3 , Figure 4 As shown, the top of the frame 1 is movably connected with a support member 5, and a box structure for arranging various accessories is fixedly installed on the top of the support member 5, and the middle part of the bottom end of the support member 5 forms a transmission connection with the frame 1 through an elastic member 7, and then under the elastic force of the elastic member 7, the support member 5 is always kept on the side facing the driven steel wheel group 4 when not under force, and at the same time, a first connecting rod 8 is pinned on the connecting shaft of the driven steel wheel group 4, and the other end of the first connecting rod 8 is pinned with a top column 10 whose outer surface contacts the top of the inner side of the track 6, and the middle part of the first connecting rod 8 is pinned with a second connecting rod 9, and the other end of the second connecting rod 9 is pinned with the middle part of the bottom end of the support member 5;

[0024] Furthermore, when the electric locomotive tilts, the support member 5 and the car body structure thereon overcome the elastic force of the elastic member 7 under the action of gravity and move toward one side of the driving component 2, and under the transmission action of the second connecting rod 9, the first connecting rod 8 and the top column 10 thereon are driven to rotate along the connecting shaft of the driven steel wheel group 4, so that the outer surface of the top column 10 is squeezed and contacted with the top of the inner side of the track 6, and reverse pressure is applied downward to the frame 1 and the structure thereon, so as to increase the friction between the driving steel wheel 3, the driven steel wheel group 4 and the track 6, thereby enhancing the traction of the electric locomotive when going uphill.

[0025] like Figure 3 As shown, in the present technical solution, the pin connection point between the second connecting rod 9 and the first connecting rod 8 is located at a position with the connecting axis of the driven steel wheel group 4 as the starting point and occupies two-thirds of the total length of the first connecting rod 8. Therefore, when the supporting member 5 overcomes the elastic force of the elastic member 7 and moves toward one side of the driving component 2, the pressure applied by the top column 10 to the inner top of the track 6 can be effectively increased, and the friction between the driving steel wheel 3, the driven steel wheel group 4 and the track 6 can be increased, so that the electric locomotive has higher safety and reliability when pulling and transporting materials such as coal and gangue uphill.

[0026] like Figure 4As shown, in the present technical solution, the top column 10 is made of hard metal material to reduce the pressure loss caused by the deformation of the top column 10 when it applies pressure to the inner top of the track 6, and the outer surface of the top column 10 and the inner top of the track 6 are in a state of pressure-free contact at the initial stage, thereby effectively reducing the power loss caused by the friction between the track 6 and the top column 10 during the normal operation of the electric locomotive.

[0027] In the present technical solution, the elastic member 7 is a constant-pressure elastic member, and its elastic force can be adjusted according to the total weight of the support member 5 and the upper body structure, thereby ensuring that when the frame 1 and the structure thereon are tilted, the top column 10 can be triggered and apply corresponding pressure to the top of the inner side of the track 6, and the greater the tilt angle of the frame 1 and the structure thereon, the greater the relative displacement of the support member 5 toward the side of the driving component 2, and the greater the extrusion pressure applied by the top column 10 to the inner top of the track 6.

[0028] In the present technical solution, the elastic force of the elastic member 7 is greater than the friction resistance between the support member 5 and the body structure thereon and the top of the frame 1 in the horizontal state. Therefore, when the frame 1 returns to the horizontal state, the elastic force of the elastic member 7 can force the support member 5 and the body structure thereon to move toward one side of the driven steel wheel group 4 and return to the initial state, and rotate the top column 10 to the initial position, and is in a state of pressure-free contact with the top of the inner side of the track 6 again.

[0029] In the present technical solution, the second connecting rod 9 adopts a threaded telescopic rod structural design, and the length of the second connecting rod 9 can be flexibly adjusted according to the wear of the top column 10 to ensure that the top column 10 and the track 6 are always in a state of pressure-free contact, effectively avoiding the problem of reduced flexibility of its triggering due to the wear of the top column 10.

Claims

1. An unmanned electric locomotive for use in a coal mine, comprising a frame (1), a set of driving components (2) being fixedly mounted at both ends of the right side of the frame (1), and a driving steel wheel (3) being drivingly connected to the output shaft of the driving component (2), a driven steel wheel group (4) being provided on the left side of the frame (1), and the frame (1) is supported on a track (6) in an "I" shape arranged in a coal mine shaft by the driving steel wheel (3) and the driven steel wheel group (4), characterized in that: The top of the frame (1) is movably connected to a support member (5), and a box structure for arranging various accessories is fixedly installed on the top of the support member (5), and the middle part of the bottom end of the support member (5) is connected to the frame (1) through an elastic member (7). At the same time, a first connecting rod (8) is pinned to the connecting shaft of the driven steel wheel group (4), and the other end of the first connecting rod (8) is pinned to a top column (10) whose outer surface contacts the inner top of the track (6). The middle part of the first connecting rod (8) is pinned to a second connecting rod (9), and the other end of the second connecting rod (9) is pinned to the middle part of the bottom end of the support member (5).

2. The unmanned electric locomotive for underground coal mine according to claim 1, characterized in that: The pin connection point between the second connecting rod (9) and the first connecting rod (8) is located at a position with the connecting axis of the driven steel wheel group (4) as the starting point and occupies two thirds of the total length of the first connecting rod (8).

3. The unmanned electric locomotive for underground coal mine according to claim 2, characterized in that: The top column (10) is made of a hard metal material, and the outer surface of the top column (10) and the top of the inner side of the track (6) are initially in a state of non-pressure contact.

4. The unmanned electric locomotive for underground coal mine according to claim 3, characterized in that: The elastic member (7) is a constant-pressure elastic member, and its elastic force can be adjusted according to the total weight of the supporting member (5) and the upper compartment structure, thereby ensuring that when the frame (1) and the structure thereon are tilted, the top column (10) can be triggered and a corresponding pressure is applied to the top of the inner side of the track (6).

5. The unmanned electric locomotive for underground coal mine according to claim 4, characterized in that: The elastic force of the elastic member (7) is greater than the friction resistance between the support member (5) and the box structure thereon and the top end of the frame (1) in a horizontal state.

6. The unmanned electric locomotive for underground coal mine according to claim 5, characterized in that: The second connecting rod (9) adopts a threaded telescopic rod structural design, and the length of the second connecting rod (9) can be flexibly adjusted according to the wear condition of the top column (10), so as to ensure that the top column (10) and the track (6) are always in a pressure-free contact state.

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