Monorail crane falling centralizing device and centralizing method for coal mine auxiliary transportation

Abstract

The invention belongs to the technical field of coal mine machinery, and discloses a monorail crane falling centralizing device and centralizing method.The centralizing device comprises a fixing plate arranged on the inner side of a ground rail, a transverse moving guide rail, a transverse moving frame, a follow-up mechanism, a longitudinal moving guide rail and two push rods; the transverse moving guide rail is arranged on the fixing plate, and the direction of the transverse moving guide rail is parallel to the direction of the ground rail. The transverse moving frame is in sliding connection with the transverse moving guide rail, and the follow-up mechanism is arranged in the transverse moving frame in a lifting mode. The longitudinal moving guide rail is arranged at the top of the follow-up mechanism, and the direction of the longitudinal moving guide rail is perpendicular to that of the ground rail; the two push rods are vertically arranged at the two ends of the longitudinal moving guide rail respectively and can slide along the longitudinal moving guide rail; the design stroke of the push rod to the center of the longitudinal-moving guide rail is half of the distance between the inner sides of left and right wheels of a mine car The monorail crane falling centralizer can replace manual push-pull centralizing of mine car falling, fast and efficient mine car falling centralizing is achieved, and the transportation efficiency and safety of monorail crane falling are greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of coal mine machinery, and in particular relates to a monorail drop car righting device and a righting method for auxiliary transportation in coal mines. Background Art

[0002] After the underground monorail crane transports the mine car to the place, it needs to be lowered to the ground track. However, due to the parallelism error between the center of the monorail crane track and the center line of the ground track and the error in the left and right positions, the falling mine car needs to be pushed or pulled manually to enter the ground track normally. Manual pushing and pulling is inefficient and prone to injuries. 3-5 people are equipped to assist in lowering the mine car; the working time is long and the labor intensity is high. Safety is difficult to guarantee.

[0003] In the prior art, a Chinese patent document with publication number CN116788989A and publication date September 22, 2023 discloses a monorail mine car falling and straightening device, comprising two pairs of platform tracks, a pair of straightening platforms and a swing frame, each pair of platform tracks is respectively arranged on both sides of the mine car track; the two straightening platforms are respectively assembled on a pair of platform tracks by rollers, and a walking mechanism is arranged between the straightening platform and the platform track; the lower end of the swing frame is hinged at the inner edge of each straightening platform, and a plurality of first push-pull cylinders are connected between the swing frame and the straightening platform, one end of each first push-pull cylinder is hinged on the swing frame, and the other end is hinged on the straightening platform. The device moves along the platform tracks on both sides of the track through the two straightening platforms on both sides of the mine car track. When the monorail mine car falls, the two swing frames on the two straightening platforms can be pushed by the first push-pull cylinder to straighten the mine car, so that the mine car falls on the mine car track, but the device has the following problems: 1. During assembly, the on-site construction volume was too large and the pedestrian passage was occupied, affecting the passage of people.

[0004] 2. Different types of mine carts are not compatible due to different wheelbases.

[0005] Therefore, the device cannot meet the actual use requirements on site. Some other righting mechanisms have one side of the track set to be mobile and the other side to be fixed. When the mine car falls to a certain distance from the track surface, the mine car stops falling, the mobile end is pushed toward the track, and the fixed end is pushed out. In addition to the above problems, this mechanism will also have new problems such as the mine car getting stuck on the mechanism, the mine car detaching from the pushing mechanism after the mobile end pushes the mine car wheel into place, and it is difficult to grasp the fixed falling distance. The above problems need to be solved urgently. Summary of the invention

[0006] The purpose of the present invention is to provide a monorail crane-drop car righting device and righting method for coal mine auxiliary transportation, which replaces manual righting of the mine car to make it fall safely into the ground track, improves the efficiency of monorail crane-drop transportation, and has high space utilization.

[0007] The technical solution adopted by the present invention is a monorail drop car straightening device for auxiliary transportation in coal mines, comprising a fixed plate arranged on the inner side of the ground track, a transverse guide rail, a transverse frame, a follower mechanism, a longitudinal guide rail and two push rods; the transverse guide rail is opened on the fixed plate, and the direction of the transverse guide rail is parallel to the direction of the ground track; the transverse frame is slidably connected to the transverse guide rail, and the follower mechanism can be raised and lowered in the transverse frame; the longitudinal guide rail is arranged at the top of the follower mechanism, and the direction of the longitudinal guide rail is perpendicular to the direction of the ground track; the two push rods are respectively vertically arranged at the two ends of the longitudinal guide rail, and both of the push rods can slide along the longitudinal guide rail; the design stroke of the push rod from the center of the longitudinal guide rail is equal to half of the inner side spacing of the left and right wheels of the mine car.

[0008] Preferably, the push rod rotation and floating mechanism also includes a push rod rotation and floating mechanism, which includes a slider, a sleeve, a base plate and a spring. The slider is sleeved on the longitudinal guide rail, the inner side of the sleeve is sleeved on the slider, the outer side of the sleeve is rotatably connected to the push rod, the base plate is fixedly connected to the slider, the base plate extends to the bottom of the push rod, and the springs are arranged on both sides of the slider, and the springs are connected between the push rod and the base plate.

[0009] Preferably, it also includes a transverse movement cylinder, which is installed at the bottom of the fixed plate, and the cylinder rod head of the transverse movement cylinder is connected to the transverse movement frame.

[0010] Preferably, it also includes a push rod cylinder, which is fixed to the top of the follower mechanism, and the cylinder rod head of the push rod cylinder is connected to the sliding block.

[0011] Preferably, two push rod cylinders are provided, each for driving two push rods to move.

[0012] Preferably, it also includes a downward pressure cylinder, which is installed in the transverse movement frame, and the cylinder rod head of the downward pressure cylinder is connected to the follower mechanism.

[0013] Preferably, it also includes a control system, which includes a pull-wire encoder, a controller and a remote control. The pull-wire encoder is arranged at the top of the follow-up mechanism and is used to measure the position of the push rod. The pull-wire encoder, transverse cylinder, push rod cylinder and downward cylinder are respectively communicated with the controller, and the controller is wirelessly connected to the remote control.

[0014] Preferably, the outer side of the push rod is L-shaped.

[0015] The present invention also provides a method for righting a monorail drop car for auxiliary transportation in coal mines, comprising the following steps: s1. The monorail crane transports the mine car to the top of the righting station; s2. The follower mechanism rises and the transverse frame moves to the center of the center; s3. Drive the two push rods to move along the longitudinal guide to their designed travel; s4. The monorail crane beam falls, driving the mine car to fall. The follow-up mechanism moves downward under the action of the mine car's weight, and the car is lowered.

[0016] Furthermore, step s3 specifically includes: the mine car moves left or right under the action of the push rod until the inner sides of the left and right wheels of the mine car contact the two push rods respectively, that is, the deviation between the mine car and the ground track is eliminated.

[0017] The beneficial effects of the present invention are: The monorail mine car falling and straightening device of the present invention can replace manual pushing and pulling and straightening of the falling mine car, thereby improving production efficiency and avoiding the occurrence of personal accidents.

[0018] The present invention designs a longitudinal guide rail that is perpendicular to the direction of the ground track and a push rod that is perpendicular to the direction of the longitudinal guide rail. When the push rod slides to a designed stroke, the distance between the push rod and the center of the longitudinal guide rail is half of the inner side spacing of the left and right wheels of the mine car. When the mine car has a deviation perpendicular to the direction of the ground track, the two push rods gradually slide and generate a driving force on the inner side of the mine car wheel on one side, that is, the mine car is gradually straightened. Until the push rod slides to the designed stroke, the inner sides of the left and right wheels of the mine car are in contact with the two push rods, that is, the vertical deviation between the mine car and the ground track is eliminated, and fast and efficient mine car landing and straightening are achieved, which greatly improves the transportation efficiency and safety of the monorail crane landing car.

[0019] The monorail lifting vehicle righting device for auxiliary transportation in coal mines of the present invention is arranged on the inner side of the ground track, does not occupy the outer space of the ground track, and does not affect the pedestrian passage.

[0020] The present invention realizes automatic alignment and adjustment of the mine car during the landing process through the push rod rotating floating mechanism, ensures that the front and rear wheels of the mine car are in contact with the push rod, does not require manual intervention, and can improve work efficiency.

[0021] The invention can be adapted to different types of mining vehicles by adjusting the design stroke of the push rod, and has a simple structure, quick installation, and is easy to promote and use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a stereoscopic diagram of the monorail drop car righting device for auxiliary transportation in coal mines according to the present invention.

[0023] Figure 2 It is a structural schematic diagram of the monorail lifting vehicle righting device for auxiliary transportation in coal mines of the present invention when it is working.

[0024] Figure 3 It is a front view of the monorail drop car righting device for auxiliary transportation in coal mines according to the present invention.

[0025] Figure 4 It is a top view of the monorail drop car righting device for auxiliary transportation in coal mines according to the present invention.

[0026] Figure 5 It is a connection diagram of the control system of the present invention.

[0027] Figure 6 This is a schematic diagram of the structure of Example 7 of the present invention.

[0028] In the figure: 1. fixed plate; 2. transverse guide rail; 3. transverse frame; 4. transverse cylinder; 5. follow-up mechanism; 6. push rod; 7. push rod cylinder; 8. longitudinal guide rail; 9. wire encoder; 10. push rod rotation floating mechanism; 11. downward pressure cylinder; 12. ground track; 13. mine car; 14. slider; 15. sleeve; 16. bottom plate; 17. spring; 19. controller; 20. remote control. DETAILED DESCRIPTION

[0029] The present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Example 1 like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the monorail drop car straightening device for auxiliary transportation in coal mines of the present invention comprises a fixed plate 1 arranged on the inner side of a ground track 12, a transverse guide rail 2, a transverse frame 3, a follower mechanism 5, a longitudinal guide rail 8 and two push rods 6; the transverse guide rail 2 is opened on the fixed plate 1, and the direction of the transverse guide rail 2 is parallel to the direction of the ground track 12; the transverse frame 3 is slidably connected to the transverse guide rail 2, and the follower mechanism 5 can be raised and lowered in the transverse frame 3; the longitudinal guide rail 8 is arranged at the top of the follower mechanism 5, and the direction of the longitudinal guide rail 8 is perpendicular to the direction of the ground track 12; the two push rods 6 are respectively vertically arranged at the two ends of the longitudinal guide rail 8, and both of the push rods 6 can slide along the longitudinal guide rail 8; the design stroke of the push rod 6 from the center of the longitudinal guide rail 8 is equal to half of the inner side spacing of the left and right wheels of the mine car 13.

[0031] When the monorail crane transports the mine car to the fixed landing point of the monorail crane car straightening device for auxiliary transportation in coal mines, the monorail crane stops, first controls the follower mechanism 5 to rise, and the transverse frame 3 moves along the transverse guide rail 2 until the straightening center is consistent with the center of the mine car, and then controls the two push rods 6 to slide along the longitudinal guide rail 8. When the mine car 13 has a deviation perpendicular to the direction of the ground track 12, the mine car 13 moves to the left or right under the action of the push rod 6 until the inner sides of the left and right wheels of the mine car 13 contact the two push rods 6 respectively, that is, the deviation between the mine car 13 and the ground track 12 is eliminated, and then the monorail crane beam falls to drive the mine car to fall, and the follower mechanism 5 moves down with the weight of the mine car. After the car is dropped, the push rod 6 is retracted, and the follower mechanism 5 retracts to the initial position to complete the car drop straightening. The present invention realizes fast and efficient mine car drop straightening, greatly improving the transportation efficiency and safety of the monorail crane car.

[0032] The present invention solves the problem of the unfixed position of the monorail hoisting vehicle by means of a transverse guide rail and a transverse frame, and can meet the actual use requirements on site.

[0033] The monorail mine car falling and straightening device of the present invention can replace manual pushing and pulling and straightening of the falling mine car, thereby improving production efficiency and avoiding the occurrence of personal accidents.

[0034] Example 2 On the basis of Example 1, in this embodiment, Figure 1 As shown, the monorail drop car straightening device for auxiliary transportation in coal mines of the present invention also includes a push rod rotating floating mechanism 10, which includes a slider 14, a sleeve 15, a bottom plate 16 and a spring 17. The slider 14 is sleeved on the longitudinal guide rail 8, the inner side of the sleeve 15 is sleeved on the slider 14, the outer side of the sleeve 15 is rotatably connected to the push rod 6, the bottom plate 16 is fixedly connected to the slider 14, and the bottom plate 16 extends to the bottom of the push rod 6. Springs 17 are provided on both sides of the slider 14, and the spring 17 is connected between the push rod 6 and the bottom plate 16.

[0035] When there is a height inconsistency between the front and rear wheels of the mine car 13, the push rod rotating floating mechanism 10 is used to realize automatic alignment and adjustment of the mine car 13 during the landing process, ensuring that the front and rear wheels of the mine car 13 are in contact with the push rod 6 without manual intervention, which can improve the working efficiency. The principle is as follows: When the lower wheel of the mine car 13 first contacts one end of the push rod 6 and presses down, since the push rod 6 is rotatably sleeved with a sleeve 15, the push rod 6 will rotate around the slider 14 by a certain angle. At the same time, under the elastic force of the spring 17, the other end of the push rod 6 will rise a distance and contact the higher wheel.

[0036] The fixed plate 1 is installed on the basic frame, and the monorail mining car falling and straightening device is installed in the middle of the ground track 12, which does not occupy the outer space of the ground track 12 and does not affect the pedestrian passage.

[0037] The outer side of the push rod 6 is L-shaped, which is convenient for receiving the falling mine car 13.

[0038] Example 3 On the basis of Example 1 or Example 2, in this embodiment, as Figure 3 As shown, the coal mine auxiliary transportation monorail drop car straightening device of the present invention also includes a transverse oil cylinder 4, which is installed at the bottom of the fixed plate 1, and the cylinder rod head of the transverse oil cylinder 4 is connected to the transverse frame 3. The transverse oil cylinder 4 is also connected to the hydraulic pump of the hydraulic system. The transverse oil cylinder 4 drives the transverse frame 3 to move along the transverse guide rail 2.

[0039] Example 4 On the basis of Example 3, in this embodiment, Figure 4 As shown, the coal mine auxiliary transportation monorail hoisting car straightening device of the present invention also includes a push rod oil cylinder 7, which is fixed to the top of the follower mechanism 5 and is also connected to the hydraulic pump of the hydraulic system. There are two push rod oil cylinders 7, which are respectively used to drive two push rods 6 to move. The cylinder rod head of the push rod oil cylinder 7 is connected to the slider 14, and the movement of the cylinder rod head of the push rod oil cylinder 7 drives the slider 14 to move, that is, drives the sleeve 15 and the push rod 6 to move.

[0040] Example 5 On the basis of Example 4, in this embodiment, the monorail hoisting car straightening device for auxiliary transportation in coal mines of the present invention also includes a downward pressure cylinder 11, which is installed in the transverse frame 3, and the cylinder rod head of the downward pressure cylinder 11 is connected to the bottom of the top plate of the follower mechanism 5, and the follower mechanism 5 is driven to move up and down by the movement of the cylinder rod head of the downward pressure cylinder 11.

[0041] Example 6 On the basis of Example 5, in this embodiment, Figure 5 As shown, the monorail drop car straightening device for auxiliary transportation in coal mines of the present invention also includes a control system, which includes a wire encoder 9, a controller 19, and a remote controller 20.

[0042] The wire encoder 9 is arranged at the top of the follower mechanism 5 and is used to measure the position of the push rod 6 to ensure that the push distances of the two push rods 6 remain consistent.

[0043] The wire encoder 9 , the lateral oil cylinder 4 , the push rod oil cylinder 7 and the downward pressure oil cylinder 11 are respectively connected to the controller 19 for communication, and the controller 19 is connected to the remote controller 20 for wireless communication.

[0044] Those skilled in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of the present invention.

[0045] The working process of the present invention is as follows: Manually operate the remote control, the downward pressure cylinder 11 extends, the upper part of the follower mechanism 5 is lifted, and according to the center of the mine car, the transverse movement cylinder 4 extends or retracts, driving the transverse movement frame 3 to move partly, and move to the center of the straightening to coincide with the center of the mine car, and the push rod cylinder 7 pushes the push rod 6 to move outward. The moving distance of the push rod 6 is monitored and fed back by the pull wire encoder 9 to ensure that the push distance of the left and right push rods 6 is consistent. After the inner side of the mine car wheel contacts the two push rods 6, the mine car moves to the left or right to eliminate the deviation between the wheel and the track, and then the monorail crane is lowered, and the follower mechanism 5 moves downward with the weight of the mine car. When there is a height inconsistency between the front and rear wheels of the mine car, the push rod rotating floating mechanism 10 completes the self-adjustment adaptation. After the car is lowered, the push rod cylinder 7 retracts to drive the push rod 6 back; the downward pressure cylinder 11 retracts, driving the follower mechanism 5 to retract to the initial position to complete the whole process of the car lowering and straightening.

[0046] Example 7 like Figure 6 As shown, in this embodiment, two monorail lifting and righting devices for coal mine auxiliary transportation of the present invention are provided, which can meet two working conditions. The first working condition: the monorail lifting beam lifts one mine car to land, and one set of righting mechanisms is used; the second working condition: the monorail lifting beam lifts two mine cars to land, and the two sets of righting mechanisms operate independently.

[0047] Example 8 The present invention also provides a method for righting a monorail drop car for auxiliary transportation in coal mines, comprising the following steps: s1. The monorail crane transport mine car 13 arrives above the righting station.

[0048] s2. The follower mechanism 5 rises and the transverse frame 3 moves to the center position of the straightening.

[0049] s3. Drive the two push rods 6 to move along the longitudinal guide rail 8 to their designed stroke.

[0050] s4. The monorail hanging beam falls, driving the mine car 13 to fall, and the follower mechanism 5 moves downward under the action of the weight of the mine car, and the car is lowered.

[0051] Among them, step s3 specifically includes: under the action of the push rod 6, the mine car 13 moves left or right until the inner sides of the left and right wheels of the mine car 13 contact the two push rods 6 respectively, that is, the deviation between the mine car 13 and the ground track 12 is eliminated.

[0052] The method for righting a monorail mine car for auxiliary transportation of the present invention is ingenious in conception and easy to implement, and effectively solves the problem of deviation when the monorail mine car is dropped.

[0053] The components and structures not described in detail in the embodiments are well-known components and common structures or common means in the industry, and are not described here one by one. The above embodiments are only illustrative of the principles and effects of the present invention, and are not used to limit the present invention. Anyone familiar with this technology can modify or change the above embodiments without violating the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical ideas disclosed by the present invention should still be covered by the claims of the present invention.

Claims

1. A monorail lifting vehicle righting device for auxiliary transportation in coal mines, characterized in that: The invention comprises a fixed plate (1) arranged on the inner side of a ground track (12), a transverse guide rail (2), a transverse frame (3), a follower mechanism (5), a longitudinal guide rail (8) and two push rods (6); the transverse guide rail (2) is opened on the fixed plate (1), and the direction of the transverse guide rail (2) is parallel to the direction of the ground track (12); the transverse frame (3) is slidably connected to the transverse guide rail (2), and the follower mechanism (5) is movably arranged in the transverse frame (3); the longitudinal guide rail (8) is arranged on the top of the follower mechanism (5), and the direction of the longitudinal guide rail (8) is perpendicular to the direction of the ground track (12); the two push rods (6) are respectively arranged vertically at the two ends of the longitudinal guide rail (8), and the two push rods (6) can slide along the longitudinal guide rail (8); the design stroke of the push rod (6) from the center of the longitudinal guide rail (8) is equal to half of the inner distance between the left and right wheels of the mine car (13).

2. The monorail lifting vehicle straightening device for auxiliary transportation in coal mines according to claim 1 comprises a sliding block, characterized in that: The device also includes a push rod rotating floating mechanism (10), the push rod rotating floating mechanism (10) (14), a sleeve (15), a base plate (16) and a spring (17), the slider (14) is sleeved on the longitudinal guide rail (8), the inner side of the sleeve (15) is sleeved on the slider (14), the outer side of the sleeve (15) is rotatably connected to the push rod (6), the base plate (16) is fixedly connected to the slider (14), the base plate (16) extends to the bottom of the push rod (6), the spring (17) is arranged on both sides of the slider (14), and the spring (17) is connected between the push rod (6) and the base plate (16).

3. The monorail lifting vehicle righting device for auxiliary transportation in coal mines according to claim 2 is characterized in that: It also includes a transverse oil cylinder (4), which is mounted on the bottom of the fixed plate (1), and a cylinder rod head of the transverse oil cylinder (4) is connected to the transverse frame (3).

4. The monorail lifting vehicle righting device for auxiliary transportation in coal mines according to claim 3 is characterized in that: It also includes a push rod cylinder (7), which is fixed to the top of the follower mechanism (5), and the cylinder rod head of the push rod cylinder (7) is connected to the slider (14).

5. The monorail lifting vehicle righting device for auxiliary transportation in coal mines according to claim 4 is characterized in that: Two push rod oil cylinders (7) are provided, each used to drive the two push rods (6) to move.

6. The monorail lifting vehicle righting device for auxiliary transportation in coal mines according to claim 4 is characterized in that: It also includes a downward-pressing oil cylinder (11), which is installed in the transverse moving frame (3), and the cylinder rod head of the downward-pressing oil cylinder (11) is connected to the follower mechanism (5).

7. The monorail lifting vehicle righting device for auxiliary transportation in coal mines according to claim 6 is characterized in that: It also includes a control system, which includes a wire encoder (9), a controller (19) and a remote controller (20). The wire encoder (9) is arranged at the top of the follower mechanism (5) and is used to measure the position of the push rod (6). The wire encoder (9), the lateral cylinder (4), the push rod cylinder (7) and the downward cylinder (11) are respectively connected to the controller (19) in communication, and the controller (19) is connected to the remote controller (20) in wireless communication.

8. The monorail lifting vehicle righting device for auxiliary transportation in coal mines according to any one of claims 1 to 7, characterized in that: The outer side of the push rod (6) is L-shaped.

9. A method for righting a monorail drop car righting device for auxiliary transportation in coal mines as claimed in claim 1, characterized in that , including the following steps: s1. The monorail crane transport car (13) reaches the top of the righting station; s2 follower mechanism (5) rises, the lateral frame (3) moves to the center position of the righting; s3 drives two push rods (6) along the longitudinal guide rail (8) to move to its design stroke; s4. The monorail hanging beam falls, driving the mine car (13) to fall, and the follower mechanism (5) moves downward under the action of the weight of the mine car, and the car is lowered.

10. The method for righting a monorail car for auxiliary transportation in coal mines according to claim 9, characterized in that Step s3 specifically includes: under the action of the push rod (6), the mine car (13) moves to the left or right until the inner sides of the left and right wheels of the mine car (13) contact the two push rods (6) respectively, that is, the deviation between the mine car (13) and the ground track (12) is eliminated.

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