Tail wheel support assembly and endless rope continuous tractor

Abstract

The application discloses a tail wheel supporting assembly and an endless rope continuous traction vehicle. The tail wheel supporting assembly comprises a frame body, a first connecting piece and a second connecting piece. The frame body is supported on a track and is movable along the track. A tail wheel is connected to the frame body and is rotatable relative to the frame body. The first connecting piece is arranged between the frame body and the track. The first connecting piece has a locking state and a loosening state. In the locking state, the first connecting piece is abutted on the track to fix the frame body on the track. In the loosening state, the frame body is movable along the track. The second connecting piece is arranged on the ground. The frame body is connected to the second connecting piece to transmit part of the acting force of the tail wheel on the frame body to the ground through the second connecting piece. The tail wheel supporting assembly disclosed by the application has relatively few components and is convenient to assemble. The tail wheel supporting assembly is convenient to disassemble, assemble and move.

Description

Technical Field

[0001] This invention belongs to the technical field of mining machinery and equipment, specifically relating to a tail wheel support assembly and an endless rope continuous traction vehicle. Background Technology

[0002] The tail pulley of an endless rope continuous traction vehicle is used to redirect the traction rope and bear the system's reaction force during operation. The tail pulley is typically connected to a track, and its position moves as the working face advances. Therefore, it is necessary not only to ensure sufficient stability during operation but also to facilitate its movement. Current tail pulley fixing methods in related technologies are complex, with numerous and large components, making them inconvenient to apply. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a tail wheel support assembly with relatively few components, easy assembly, disassembly, and relocation.

[0004] Embodiments of the present invention also propose an endless rope continuous traction vehicle.

[0005] The tail wheel support assembly of this invention includes:

[0006] A frame, which is supported on a track and can move along the track, and a tail wheel is connected to the frame and can rotate relative to the frame;

[0007] A first connector is disposed between the frame and the track. The first connector has a locked state and a released state. In the locked state, the first connector abuts against the track to fix the frame to the track. In the released state, the frame can move along the track.

[0008] The second connector is located underground, and the frame is connected to the second connector to transmit part of the force exerted by the tail wheel on the frame to the ground through the second connector.

[0009] In this embodiment of the invention, the tail wheel support assembly fixes the frame to the track through a first connector and connects the frame to the ground through a second connector, reducing the number of parts used for fixing the tail wheel, making assembly convenient, and facilitating disassembly and movement when moving the tail wheel, thus providing high flexibility.

[0010] In some embodiments, the frame includes:

[0011] A first frame is mounted on the track and is movable along the length of the track. A first connecting member is located between the first frame and the track, and the tail wheel is connected to the first frame.

[0012] The second frame is mounted on the track and is movable along the length of the track. The second frame is connected to the ground via the second connector.

[0013] A traction component is disposed between the first frame and the second frame to connect the first frame and the second frame along the length direction of the track.

[0014] In some embodiments, the system further includes a plate body connected to the first frame body. There are multiple tracks, and at least one of the tracks has the plate body on its side. The first connector passes through the plate body, and one end of the first connector can abut against the track.

[0015] In some embodiments, the plurality of first connectors on each plate are divided into multiple sets of connector units, at least one set of connector units abuts against the side of the rail head of the corresponding track, and at least one set of connector units abuts against the side of the rail web of the corresponding track.

[0016] In some embodiments, a plurality of the first connectors in each set of connector units are arranged along the length direction of the track, and a plurality of sets of connector units on each plate are arranged at intervals along the height direction of the track.

[0017] In some embodiments, the track includes a first rail and a second rail arranged in parallel, the plate on the first frame includes two plates corresponding to the two sides of the first rail in the width direction, and the tail pulley includes a first pulley and a second pulley connected to the first frame, the first pulley and the second pulley being symmetrical with respect to the first rail in the width direction of the first rail.

[0018] In some embodiments, the second frame is movably supported on the first rail.

[0019] In some embodiments, the first frame includes:

[0020] A first beam and a second beam are arranged at intervals along the length direction of the track. Both the first beam and the second beam span the track along the width direction of the track. The first beam and the second beam are supported on the track by wheels.

[0021] The third beam is connected between the first beam and the second beam, and the first connector and the tail wheel are both connected to the third beam.

[0022] In some embodiments, both the first frame and the second frame are formed by bending or welding sheet metal.

[0023] The endless rope continuous traction vehicle of this invention includes the tail wheel support assembly described above.

[0024] The beneficial effects achieved by the endless rope continuous traction vehicle of the present invention are at least partially the same as those achieved by the tail wheel support assembly described above, and will not be repeated here. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the installation structure of the tail wheel support assembly according to an embodiment of the present invention.

[0026] Figure 2 This is a schematic diagram of the installation structure of the tail wheel support assembly according to another embodiment of the present invention.

[0027] Figure 3 This is a schematic diagram of the tail wheel support assembly according to an embodiment of the present invention.

[0028] Figure 4 This is a schematic diagram of the tail wheel support assembly according to another embodiment of the present invention.

[0029] Figure 5 This is a schematic diagram of the tail wheel support assembly according to another embodiment of the present invention.

[0030] Figure 6 This is a schematic diagram of the tail wheel support assembly according to another embodiment of the present invention.

[0031] Figure 7 This is a schematic diagram of the structure of the first frame according to an embodiment of the present invention.

[0032] Figure 8 This is a schematic diagram of the structure of the first frame according to another embodiment of the present invention.

[0033] Figure 9 This is a schematic diagram of the structure of the second frame according to an embodiment of the present invention.

[0034] Figure label:

[0035] Frame 1, first frame 11, first beam 111, first mounting plate 1111, second beam 112, third beam 113, plate 1131, second mounting plate 1132, through hole 114, through groove 115, second frame 12, traction component 13, wheel 14;

[0036] Track 2, first rail 21, second rail 22;

[0037] First connector 3;

[0038] Second connector 4;

[0039] Tail wheel 5;

[0040] 6. Pull ropes. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0042] like Figures 1-6 As shown, Figure 1 and Figure 2 The diagram shows the tail wheel support assembly mounted on track 2 from different perspectives. Figures 3-6 The diagram shows the structure of the tail wheel support assembly from different perspectives. The tail wheel support assembly of this embodiment includes a frame 1, a first connector 3, and a second connector 4.

[0043] The frame 1 is supported on the track 2 and can move along the track 2. The tail wheel 5 is connected to the frame 1 and can rotate relative to the frame 1. The pull rope 6 changes direction through the tail wheel 5. The first connecting member 3 is located between the frame 1 and the track 2. The first connecting member 3 has a locked state and a released state. In the locked state, the first connecting member 3 abuts against the track 2 to fix the frame 1 to the track 2. In the released state, the frame 1 can move along the track 2. The second connecting member 4 is located below the ground. The frame 1 is connected to the second connecting member 4 so that part of the force exerted on the frame 1 by the tail wheel 5 is transmitted to the ground through the second connecting member 4.

[0044] In this embodiment of the invention, the first connector 3 facilitates the connection between the frame 1 and the track 2, thereby fixing the tail wheel 5 and bearing the system reaction force of the endless rope continuous traction vehicle, ensuring the normal and stable operation of the traction equipment.

[0045] Furthermore, since the roadway surface is not always level, the force exerted by the traction rope 6 on the tail wheel 5 and the frame 1 is not always parallel to the horizontal plane. For example, when part of the roadway surface is inclined at a certain angle to the horizontal plane, the force exerted by the traction rope 6 on the tail wheel 5 and the frame 1 will be transmitted to the track 2 and exert a force perpendicular to the inclined ground on the track 2. As the endless rope continuous traction vehicle runs for a long time, the connection structure between the track 2 and the roadway surface will loosen or even fall off, causing the track 2 to tilt. Therefore, the second connector 4 can exert a force on the frame 1 or on the track 2 to counteract the upward force perpendicular to the roadway surface applied to the track 2.

[0046] In this embodiment of the invention, the tail wheel support assembly fixes the frame 1 to the track 2 through the first connector 3 and connects the frame 1 to the ground through the second connector 4, reducing the number of parts used to fix the tail wheel 5, making assembly convenient, and facilitating disassembly and movement when moving the tail wheel 5, thus providing high flexibility.

[0047] In this embodiment of the invention, two fixing methods are used for the frame 1. One method is to use multiple second connectors 4 driven into the tunnel floor to pull and fix the frame 1. The other method is to use the first connector 3 to fix the device to the track 2. This increases the reliability of the tail wheel 5 in bearing the system reaction force. Although two fixing methods are used for the device, fewer parts are involved, which reduces the manufacturing cost.

[0048] In some embodiments, the frame 1 includes a first frame 11, a second frame 12, and a traction member 13. The first frame 11 is disposed on the track 2 and is movable along the length of the track 2. A first connecting member 3 is disposed between the first frame 11 and the track 2, and a tail wheel 5 is connected to the first frame 11. The second frame 12 is disposed on the track 2 and is movable along the length of the track 2. The second frame 12 is connected to the ground via a second connecting member 4. The traction member 13 is disposed between the first frame 11 and the second frame 12 to connect the first frame 11 and the second frame 12 along the length of the track 2.

[0049] In other words, the first frame 11 and the second frame 12 are set separately so that they can be connected to the first connector 3 and the second connector 4 respectively, thereby achieving their respective effects. This also simplifies the complexity of the structure and facilitates production and processing. During installation, the first frame 11 and the second frame 12 can be operated independently and then connected by the traction member 13 to improve installation efficiency.

[0050] As the endless rope continuous traction vehicle moves forward in the tunnel, the tail wheel 5 also needs to move along with it. At this time, it is only necessary to disassemble the first frame 11 and the second frame 12 respectively, and drag the first frame 11 and the second frame 12 on the track 2 to move the tail wheel 5.

[0051] Optionally, the first connecting piece 3 is a bolt, and the second connecting piece 4 is an anchor rod. The first frame 11 is fixed to the track 2 by multiple first connecting pieces 3. When disassembling, the first connecting pieces 3 can be loosened, which is convenient and quick to operate, has high work efficiency, and reduces the labor intensity of workers. The second connecting piece 4 is an anchor rod. When disassembling, the anchor rod can be left in the ground. After the tail wheel 5 is moved to a new position, the anchor rod can be re-inserted to complete the fixation of the second frame 12.

[0052] Furthermore, the first frame 11 is formed by bending or welding sheet metal, such as... Figure 7 and Figure 8 As shown, the manufacturing cost is low due to the welding of plates, and it is easy to ensure the structural strength. Structural reinforcement can be carried out for areas with high stress, making it highly practical. In addition, the overall volume is relatively small and easy to move.

[0053] The second frame 12 can also be made by bending or welding sheet metal, such as... Figure 9 As shown, the second frame 12 has a sliding groove. The second frame 12 is secured to the track 2 through the sliding groove and can slide along the track 2. The main purpose of the second frame 12 is to provide a force towards the ground to the track 2, preventing the connection between the track 2 and the ground from loosening and preventing the track 2 from tilting. Since the second frame 12 only needs to constrain the track 2 and pull the first frame 11 along the length of the track 2, its structure can be simplified, making it lightweight and low in manufacturing cost. It will not occupy too much tunnel space and has better practicality.

[0054] Optionally, the traction component 13 can be a circular steel chain. The second frame 12 can provide a pulling force to the first frame 11 through the steel chain, which, together with the first connecting component 3, improves the structural stability of the first frame 11 and can also prevent the first frame 11 from becoming detached from the track 2 and causing a safety accident when the endless rope continuous traction vehicle is in operation.

[0055] In some embodiments, the system further includes a plate 1131 connected to the first frame 11. There are multiple tracks 2, and at least one of the tracks 2 has a plate 1131 on its side. A first connector 3 passes through the plate 1131, and one end of the first connector 3 can abut against the track 2.

[0056] In other words, the first frame 11 can be fixed to one of the tracks 2 or to multiple tracks 2. When the first frame 11 is fixed to one of the tracks 2, two side plates are provided on the first frame 11, corresponding to the two sides of one of the tracks 2. The first connecting piece 3 on the two plates 1131 supports the track 2 to complete the fixation of the first frame 11. When the first frame 11 is fixed to two tracks 2, four side plates are provided on the first frame 11, with side plates corresponding to the two sides of the tracks 2. The first connecting piece 3 on the four plates 1131 supports the corresponding track 2 to complete the fixation of the first frame 11.

[0057] In some embodiments, the plurality of first connectors 3 on each plate 1131 are divided into multiple sets of connector units, at least one set of connector units abuts against the side of the rail head of the corresponding track 2, and at least one set of connector units abuts against the side of the rail web of the corresponding track 2.

[0058] In other words, if the first connecting piece 3 on the plate 1131 is not arranged properly, it may cause the first frame 11 to loosen after being subjected to the force of the traction rope 6 for a long time, or even cause the first connecting piece 3 to fail, resulting in the separation of the first frame 11 from the rail 2. In order to improve the stability between the first frame 11 and the rail, in this embodiment, a portion of the first connecting piece 3 abuts against the rail head of the rail 2, and a portion of the first connecting piece 3 abuts against the rail web of the rail 2, thereby improving the stability of the first frame 11 and the rail 2.

[0059] In some embodiments, multiple first connectors 3 in each set of connector units are arranged along the length direction of the track 2, and multiple sets of connector units on each plate 1131 are arranged at intervals along the height direction of the track 2.

[0060] Specifically, the first connecting parts 3 on the plate 1131 are arranged in an array, so that multiple supporting parts are formed between the plate 1131 and the track 2, which can make the structure of the first frame 11 have good stability.

[0061] In some embodiments, the track 2 includes a first rail 21 and a second rail 22 arranged in parallel, the plate 1131 on the first frame 11 includes two plates 1131 corresponding to the two sides of the width direction of the first rail 21, and the tail wheel 5 includes a first rope wheel and a second rope wheel connected to the first frame 11. The first rope wheel and the second rope wheel are symmetrical with respect to the first rail 21 along the width direction of the first rail 21.

[0062] Specifically, such as Figure 1 and Figure 2As shown in the figure, the structure of fixing the first frame 11 to one of the two tracks 2 is illustrated. At this time, it is necessary to set two tail wheels 5, namely the first rope wheel and the second rope wheel. The two rope wheels are symmetrically arranged with respect to the track 2, so that the force of the pulling rope 6 acting on the first frame 11 corresponds to the connection between the first frame 11 and the first rail 21, thus avoiding the first frame 11 from local structural distortion or even local tearing due to unbalanced force.

[0063] Optionally, the installation height of the first and second rope pulleys can be reduced to the maximum extent. When the pull rope 6 passes around the first and second rope pulleys, the pull rope 6 only needs to be slightly higher than the upper surface of the track 2. This reduces the overall height of the tail wheel support assembly, improves practicality, and allows the pull rope 6 to be directly connected to the shuttle car. The pull rope 6 is generally made of steel wire rope.

[0064] In this embodiment of the invention, two rope pulleys are used to bear the reaction force of the system. The first rope pulley and the second rope pulley are arranged at intervals and symmetrically on both sides of the first rail 21, so that the part below the rope groove of the first rope pulley and the second rope pulley is lower than the top surface of the first rail 21, so that the height of the pulling rope 6 is just suitable for the working position, thereby reducing the need for the height adjustment device of the wire rope and making its structure more compact and practical.

[0065] In some embodiments, the second frame 12 is movably supported on the first rail 21.

[0066] In other words, when the first frame 11 is fixed to the first rail 21, the force exerted by the pull rope 6 on the first frame 11 will be transmitted to the first rail 21. At this time, the second frame 12 also needs to be placed on the first rail 21 to prevent the first rail 21 from tilting.

[0067] In some embodiments, the first frame 11 includes a first beam 111, a second beam 112, and a third beam 113. The first beam 111 and the second beam 112 are arranged at intervals along the length direction of the track 2, and both the first beam 111 and the second beam 112 span across the track 2 along the width direction. The first beam 111 and the second beam 112 are supported on the track 2 by wheels 14. The third beam 113 is connected between the first beam 111 and the second beam 112, and the first connector 3 and the tail wheel 5 are both connected to the third beam 113.

[0068] The first beam 111 and the second beam 112 can be channel steel or angle steel, or they can be formed by bending plates. The third beam 113 can be replaced by a plate 1131, or the plate 1131 can be placed on the third beam 113. Figure 7 and Figure 8In the structure shown, plate 1131 is used as part of the third beam 113. The tail wheel 5 can also be arranged on the third beam 113, and the tail wheel 5 and the first connecting member 3 should be arranged as close as possible to avoid the first frame 11 being subjected to excessive lateral force, which would cause local stress concentration in the first frame 11.

[0069] Since the wheel body 14 and the tail wheel 5 need to be installed, a first mounting plate 1111 for installing the wheel body 14 is provided on the first beam 111 and the second beam 112, and a second mounting plate 1132 for installing the tail wheel 5 is provided on the third beam 113. Both the wheel body 14 and the tail wheel 5 are rotatably connected to their respective mounting plates. Because the pull rope 6 will interfere with parts of the beam during its passage, through holes 114 or through slots 115 are made in the beams where the pull rope 6 interferes to allow the pull rope 6 to pass through. Figure 4 As shown, a through groove 115 and a through hole 114 are provided on the first beam 111, and a through hole 114 is provided on the third beam 113 to facilitate the passage of the pulling rope 6.

[0070] Furthermore, such as Figure 1 and Figure 2 As shown, the first beam 111 and the second beam 112 are provided with through slots 115 corresponding to the track 2 to avoid interference between the first beam 111 and the second beam 112 and the track 2 after the first frame 11 is placed on the track 2.

[0071] Optionally, a reinforcing plate may be provided between the third beam 113 and the first frame 11 and the second frame 12 to improve the structural strength at the corresponding location.

[0072] The endless rope continuous traction vehicle of this invention includes the tail wheel support assembly described above.

[0073] The beneficial effects achieved by the endless rope continuous traction vehicle of the present invention are at least partially the same as those achieved by the tail wheel support assembly described above, and will not be repeated here.

[0074] When moving the tail wheel 5, the tail wheel support assembly is pushed along the first rail 21 and the second rail 22 to the designated position. Anchor rods are driven into the bottom plate positions at both ends of the first rail 21. The second frame 12 is fastened onto the first rail 21 and secured to multiple anchor rods with nuts. Then, the first frame 11 is pushed to move. After tightening the circular chain, the first connecting piece 3 on the side plate is tightened, thus completing the installation of the tail wheel support assembly of the present invention. When it is necessary to move the tail wheel 5 to the next working position, the first connecting piece 3 is loosened, the nuts on the anchor rods are removed, and the tail wheel support assembly of the present invention can be pushed to the designated position. Installation and movement are both convenient.

[0075] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0077] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0078] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0079] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0080] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A tail wheel support assembly, characterized in that, include: A frame, which is supported on a track and can move along the track, and a tail wheel is connected to the frame and can rotate relative to the frame; A first connector is disposed between the frame and the track. The first connector has a locked state and a released state. In the locked state, the first connector abuts against the track to fix the frame to the track. In the released state, the frame can move along the track. The second connector is located underground, and the frame is connected to the second connector to transmit part of the force exerted by the tail wheel on the frame to the ground through the second connector. The frame includes: A first frame is mounted on the track and is movable along the length of the track. A first connecting member is located between the first frame and the track, and the tail wheel is connected to the first frame. The second frame is mounted on the track and is movable along the length of the track. The second frame is connected to the ground via the second connector. A traction component is disposed between the first frame and the second frame to connect the first frame and the second frame along the length direction of the track; It also includes a plate body, which is connected to the first frame body. There are multiple tracks, and at least one of the tracks has the plate body on its side. The first connector passes through the plate body, and one end of the first connector can abut against the track. The multiple first connectors on each plate are divided into multiple sets of connector units. At least one set of connector units abuts against the side of the rail head of the corresponding track, and at least one set of connector units abuts against the side of the rail web of the corresponding track.

2. The tail wheel support assembly according to claim 1, characterized in that, In each set of connector units, multiple first connectors are arranged along the length direction of the track, and multiple sets of connector units on each plate are arranged at intervals along the height direction of the track.

3. The tail wheel support assembly according to any one of claims 1-2, characterized in that, The track includes a first rail and a second rail arranged in parallel. The plate on the first frame includes two plates corresponding to the two sides of the first rail in the width direction. The tail pulley includes a first rope pulley and a second rope pulley connected to the first frame. The first rope pulley and the second rope pulley are symmetrical with respect to the first rail in the width direction of the first rail.

4. The tail wheel support assembly according to claim 3, characterized in that, The second frame is movably supported on the first rail.

5. The tail wheel support assembly according to claim 1, characterized in that, The first frame includes: A first beam and a second beam are arranged at intervals along the length direction of the track. Both the first beam and the second beam span the track along the width direction of the track. The first beam and the second beam are supported on the track by wheels. The third beam is connected between the first beam and the second beam, and the first connector and the tail wheel are both connected to the third beam.

6. The tail wheel support assembly according to claim 5, characterized in that, Both the first frame and the second frame are made by bending or welding sheet metal.

7. A continuous traction vehicle with an endless rope, characterized in that, Includes the tail wheel support assembly as described in any one of claims 1-6.

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