Automatic hanging chain type unhooking and hooking device

Abstract

The utility model provides an automatic hanging chain type unhooking and hooking device, and belongs to the field of mine transportation equipment. The automatic hanging chain type unhooking and hooking device comprises an automatic sleeving and taking device arranged at the rear end of an electric locomotive and a mine car shaft arranged at the front end of a mine car. Wherein the two ends of the chain are connected with the rear end of the electric locomotive and the lantern ring respectively, the clamping jaw is used for taking and placing the lantern ring, and the lifting mechanism is connected with the clamping jaw and used for driving the clamping jaw to move up and down. According to the lifting mechanism, the clamping jaw is driven to move up and down, the lantern ring can be placed on a mine car shaft when the clamping jaw moves downwards, automatic hooking operation is completed, and the lantern ring can be supported when the clamping jaw moves upwards, and automatic unhooking operation is completed. The automatic hanging chain type unhooking and hooking device not only can automatically complete unhooking and hooking operation, but also is simple in structure, high in transmission precision and high in applicability.

Description

Technical Field

[0001] The present application relates to the technical field of mine transportation equipment, and particularly relates to an automatic hanging chain type hook detaching and attaching device. Background Art

[0002] With the continuous popularization of automation, mining enterprises are also continuously expanding the scale of automation. At present, a chain connection structure is generally used to connect a mine car and a battery locomotive. Although this device has a reliable and firm connection, when connecting a mine car and a battery locomotive with a conventional chain connection structure, additional personnel are required to perform manual hook detaching and attaching operations, which are time-consuming and laborious, and affect the production efficiency and the development of automated transportation work.

[0003] In the prior art, a patent with the publication number CN202279130U discloses a mine car automatic hook detaching and attaching device with a hook ring. The mine car automatic hook detaching and attaching device with a hook ring includes a car ring at the front end of the mine car, a folding car hook at the rear end of the mine car, and a cover plate. The car hook is hinged to the car hook seat through a hinge shaft, and its lower end is connected to the mine car through a spring. The cover plate covers the car hook and forms an opening for the car ring to be inserted and connected between the cover plate and the car hook seat. By the collision between the car ring at the front end of the mine car and the car hook at the rear end of the mine car, the car hook rotates around the shaft and the car ring is inserted. Then, under the pulling force of the lower spring, it rotates in the reverse direction to close the opening formed between the cover plate and the car hook seat, completing the hook attaching operation; under the action of an external force, the car hook rotates around the shaft, forming an opening between the cover plate and the car hook seat, the car ring disengages from the car hook, and the car hook returns to its initial state under the pulling force of the spring, completing the hook detaching operation. Although this method has a simple structure, most of the entire operation depends on the pulling force of the spring below the car hook, which has extremely high requirements for the anti-fatigue property of the spring, and is limited for large-scale applications.

[0004] In view of this, it is necessary to provide an improved automatic hanging chain type hook detaching and attaching device to solve the above problems. Summary of the Invention

[0005] In view of the problems existing in the background art, the present application provides an automatic hanging chain type hook detaching and attaching device. Through the up and down linear movement of the automatic detaching device at the rear end of the battery locomotive, the automatic taking and placing of the collar can be realized, thereby realizing the automatic connection and separation between the battery locomotive and the mine car.

[0006] An embodiment of the present application provides an automatic hanging chain type hook detaching and attaching device, which includes an automatic detaching device arranged at the rear end of the battery locomotive and a mine car shaft arranged at the front end of the mine car; the automatic detaching device includes a collar, a chain with two ends respectively connected to the rear end of the battery locomotive and the collar, a claw for taking and placing the collar, and a lifting mechanism connected to the claw and used to drive the claw to move up and down.

[0007] In the technical solution of the embodiment of the present application, the lifting mechanism drives the claw to move up and down, so that the collar can be placed on the mine car axle when the claw moves downward to complete the automatic hook operation, and the collar can also be lifted when the claw moves upward to complete the automatic unhooking operation, thereby realizing the automatic coupling and decoupling of the electric locomotive and the mine car.

[0008] In some embodiments, the lifting mechanism includes a motor, a lead screw connected to the output shaft of the motor, and a lead screw nut threadedly connected to the outer wall of the lead screw; the claw is fixedly connected to the lead screw nut.

[0009] In this embodiment, the motor drives the lead screw to rotate, and then drives the lead screw nut and the claw fixedly connected to the lead screw nut to move along the axial direction of the lead screw.

[0010] In some embodiments, the automatic picking device further includes a fixing component; the fixing component includes an installation housing and a motor fixing bracket connected to the motor; an upper bearing seat and a lower bearing seat are respectively arranged in the upper and lower parts of the inner cavity of the installation housing, a self-aligning bearing is arranged in the upper bearing seat, and a tapered bearing is arranged in the lower bearing seat; the lead screw is arranged vertically, the upper part of the lead screw is connected to the self-aligning bearing, and the lower part of the lead screw is connected to the tapered bearing.

[0011] In this embodiment, through the self-aligning bearing connected above the lead screw, the structural error caused by the radial runout of the lead screw can be prevented, and the tapered bearing connected below the lead screw can bear the combined radial and axial loads mainly in the radial direction.

[0012] In some embodiments, a notch for the lead screw nut to extend out and move vertically is arranged on the outer side of the installation housing; a limiting block is also arranged on the outer side of the installation housing, and the bottom end of the limiting block is in the same plane as the top end of the notch.

[0013] In this embodiment, the limiting block can control the highest position of the upward movement of the lead screw nut, and further control the highest position of the upward movement of the claw.

[0014] In some embodiments, the fixing component further includes a connecting plate arranged at the rear end of the electric locomotive; the motor fixing bracket and the installation housing are arranged on the connecting plate, and the thickness of the connecting plate is adjustable. In this embodiment, the unilateral error of the guide post and the connecting shaft can be adjusted by adjusting the thickness of the connecting plate.

[0015] In some embodiments, the automatic picking device further includes a guide post arranged above the claw and a guide post fixing plate connected to the guide post. In this embodiment, the guide post cooperates with the claw to effectively prevent the collar from coming off.

[0016] In some embodiments, the claw is of a U-shaped structure, the collar is of a circular convex platform structure, and the gap between the claw and the collar is greater than 20 mm. In this embodiment, the structures of the claw and the collar enable them to better grasp and be grasped.

[0017] In some embodiments, the mine car axle includes a pin connected to the front end of the mine car, a collar placement plate connected to the pin, and a connecting shaft vertically disposed above the collar placement plate. A limit pin is provided on the pin.

[0018] In some embodiments, a bumper is provided at the rear end of the battery locomotive. In this embodiment, the bumper can prevent the impact on the pawl when the mine car moves forward to protect the pawl.

[0019] Overview of the technical solution of this application. In order to be able to more clearly understand the technical means of this application, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of this application more obvious and understandable, the following specifically illustrates the specific implementation manners of this application. Brief Description of the Drawings

[0020] In order to more clearly illustrate the technical solution of this application, the drawings used in this application will be briefly introduced below. Obviously, the following described drawings are only some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the operation simulation structure of an automatic hanging chain type hook detaching device in an embodiment of this application;

[0022] Figure 2 It is a three-dimensional structure schematic diagram of the automatic picking device in the starting state in an embodiment of this application;

[0023] Figure 3 It is the front view of the automatic picking device in the starting state in an embodiment of this application;

[0024] Figure 4 is Figure 3 the A-A cross-sectional view of;

[0025] Figure 5 It is the front view of the mine car axle in an embodiment of this application;

[0026] Figure 6 It is the top view of the mine car axle in an embodiment of this application.

[0027] Description of the reference numerals: 1. Automatic extraction device; 11. Collar; 12. Chain; 13. Claw; 141. Motor; 142. Lead screw; 143. Lead screw nut; 151. Installation housing; 152. Motor fixing bracket; 153. Upper bearing seat; 154. Lower bearing seat; 155. Self-aligning bearing; 156. Tapered bearing; 157. Notch; 158. Limit block; 159. Connecting plate; 16. Guide post; 17. Guide post fixing plate; 18. Impact block; 2. Mine car axle; 21. Pin; 22. Collar placement plate; 23. Connecting shaft; 24. Limit pin; 3. Locomotive; 4. Mine car; 5. Track. Detailed implementation manners

[0028] The embodiments of the technical solution of the present application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to illustrate the technical solution of the present application more clearly, so they are only examples and cannot be used to limit the protection scope of the present application.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion.

[0030] Referring to "embodiments" herein means that specific features, structures or characteristics described in connection with the embodiments can be included in at least one embodiment of this application. The phrase appears in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0031] In the description of the embodiments of this application, the technical terms "width", "thickness", "upper", "lower", "front", "rear", "vertical", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the embodiments of this application.

[0032] In the description of the embodiments of the present application, unless otherwise clearly defined and limited, technical terms such as "installation", "connection", and "fixation" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific circumstances.

[0033] The automatic connection of mining transportation equipment has always been a matter of concern in the mining field. At present, the connection devices of mine cars 4 and locomotives 3 generally adopt a chain connection structure, but the sleeving operation needs to be completed manually.

[0034] In order to solve the technical problem that it is difficult to achieve stable and precise automatic connection of mining transportation equipment, the present application provides an automatic chain-type hook detaching device. Among them, through the up-and-down linear movement of the automatic picking device 1 arranged at the rear end of the locomotive 3, the automatic picking and placing of the collar 11 can be realized, so as to realize the automatic connection and separation of the locomotive 3 and the mine car 4.

[0035] The following further elaborates the present application in conjunction with specific embodiments.

[0036] Please refer to Figure 1 , Figure 2 and Figure 5 , the present application provides an automatic chain-type hook detaching device, including: an automatic picking device 1 arranged at the rear end of the locomotive 3 and a mine car axle 2 arranged at the front end of the mine car 4; the automatic picking device 1 includes a collar 11, a chain 12 with two ends respectively connected to the rear end of the locomotive 3 and the collar 11, a claw 13 for picking and placing the collar 11, and a lifting mechanism connected to the claw 13 and used to drive the claw 13 to move up and down. By driving the claw 13 to move up and down through the lifting mechanism, the collar 11 can be placed on the mine car axle 2 when the claw 13 moves downward to complete the automatic hook operation, and the collar 11 can also be lifted when the claw 13 moves upward to complete the automatic unhooking operation, so as to realize the automatic hook detaching of the locomotive 3 and the mine car 4.

[0037] Furthermore, in the embodiments of the present application, as Figure 2As shown in the figure, the lifting mechanism includes a motor 141, a lead screw 142 connected to the output shaft of the motor 141, and a lead screw nut 143 threadedly connected to the outer wall of the lead screw 142; the claw 13 is fixedly connected to the lead screw nut 143. By driving the lead screw 142 to rotate through the motor 141, the lead screw nut 143 and the claw 13 fixedly connected to the lead screw nut 143 are driven to move along the axial direction of the lead screw 142. In this way, the lifting mechanism can drive the up-and-down linear movement of the claw 13 to realize the automatic picking and placing of the collar 11. To facilitate the grasping of the collar 11 by the claw 13, the claw 13 is U-shaped with a slope on the inner side, and the collar 11 is a circular boss structure; furthermore, considering the position deviation generated during the grasping process, the gap between the inner side of the claw 13 and the outer side of the bottom boss of the collar 11 is preferably greater than 20 mm.

[0038] Furthermore, in the embodiment of the present application, as Figure 2 , Figure 3 and Figure 4 shown, the fixing component includes a mounting housing 151 and a motor fixing bracket 152 connected to the motor 141. Upper and lower bearing seats 153 and 154 are respectively arranged in the inner cavity of the mounting housing 151. A self-aligning bearing 155 is arranged in the upper bearing seat 153. The self-aligning bearing 155 can prevent the radial runout of the lead screw 142, thereby preventing the lead screw nut 143 on the lead screw 142 from driving the claw 13 to have radial runout, so that the claw 13 cannot accurately grasp the collar 11. A tapered bearing 156 is arranged in the lower bearing seat 154. The tapered bearing 156 bears the combined radial and axial loads mainly in the radial direction. The lead screw 142 is vertically arranged. The upper part of the lead screw 142 is rotatably connected to the self-aligning bearing 155, and the lower part of the lead screw 142 is rotatably connected to the tapered bearing 156; a notch 157 for the lead screw nut 143 to extend and move vertically is arranged on the outer side of the mounting housing 151. The width of the notch 157 is 1-2 mm wider than the width of the connecting end of the claw 13 and the lead screw nut 143, so that the lead screw nut 143 can only move up and down linearly along the notch 157, preventing the rotation of the claw 13 from affecting the accuracy of hooking and unhooking; a limiting block 158 is also arranged on the outer side of the mounting housing 151. The bottom end of the limiting block 158 is in the same plane as the top end of the notch 157. The highest position of the upward movement of the lead screw nut 143 is controlled by the limiting block 158, and then the highest position of the upward movement of the claw 13 is controlled.

[0039] Furthermore, in the embodiment of the present application, as Figure 3 shown, the automatic picking device 1 is connected to the motor vehicle 3 through a connecting plate 159. The motor fixing bracket 152 and the mounting housing 151 are arranged on the connecting plate 159. Since it is considered that the mine environment is complex, when installing, it is necessary to ensure that the guide post 16 and the connecting shaft 23 are coaxial as much as possible when the motor vehicle 3 hits the mine car 4, and the unilateral error shall not be greater than 45 mm. The error can be adjusted by adjusting the thickness of the connecting plate 159.

[0040] Further, in the embodiment of the present application, as Figure 2 shown, the automatic extraction device 1 further includes a guide post 16 disposed above the jaw 13 and a guide post fixing plate 17 connected to the guide post 16. When the jaw 13 completes the grasping of the collar 11 and moves upward to the highest position, the jaw 13 and the guide post 16 fix the collar 11 therebetween to prevent the collar 11 from coming off.

[0041] Further, in the embodiment of the present application, as Figure 5 shown, the mine car axle 2 includes a pin 21 connected to the front end of the mine car 4, a collar placing plate 22 connected to the pin 21, and a connecting shaft 23 vertically disposed above the collar placing plate 22. A limit pin 24 is provided on the pin 21. The pin 21 is in an extended state, rather than the traditional mine car pin. This is because the distance between the existing domestic mine car pins and the carriage is too close, which is not conducive to the entry of the device and is prone to interference and impact. After the structure of the pin 21 is changed to an extended type in the present application, there is enough distance for the hooking and unhooking operations.

[0042] Further, in the embodiment of the present application, as Figure 1 shown, a collision block 18 is provided at the rear end of the battery locomotive 3. When the mine car 4 approaches the battery locomotive 3, it first collides with the collision block 18 to prevent the mine car 4 from hitting the jaw 13 when moving forward, so as to protect the jaw 13.

[0043] The working process of the automatic hanging chain type hooking and unhooking device provided by the present application is generally as follows:

[0044] 1. Hooking process

[0045] When hooking, the mine car 4 moves forward along the track 5. When it meets the battery locomotive 3, the output shaft of the motor 141 rotates clockwise, the lead screw 142 rotates clockwise following the output shaft of the motor 141, and drives the lead screw nut 143 to move downward. The jaw 13 moves downward following the lead screw nut 143, disengages the collar 11 from the guide post 16, sleeves the collar 11 on the outer layer of the connecting shaft 23, and finally places it on the collar placing plate 22. At this time, the battery locomotive 3 moves forward, the jaw 13 disengages from the collar 11, the motor 141 rotates reversely to drive the lead screw 142 to rotate counterclockwise, the lead screw nut 143 moves upward to the limit block 158, the motor 141 stops rotating, and the battery locomotive 3 pulls the mine car 4 for operation.

[0046] 2. Unhooking process

[0047] The output shaft of the motor 141 rotates clockwise, the lead screw 142 rotates clockwise following the output shaft of the motor 141, and drives the lead screw nut 143 to move downward. The claw 13 moves downward to the lower bearing seat 154 following the lead screw nut 143. The motor 141 stops rotating, and the battery locomotive 3 travels backward slowly. The mine car 4 impacts the bumper 18, and the claw 13 holds the collar 11 again. At this time, the motor 141 rotates counterclockwise, driving the lead screw 142 to rotate following it. The lead screw nut 143 moves upward until the claw 13 moves to the limit block 158. The motor 141 stops rotating and returns to Figure 3 the initial state.

[0048] It should be noted that the present application is not limited to the above embodiments. The above embodiments are only examples. Embodiments having the same constitution in essence as the technical idea and achieving the same function and effect within the technical solution scope of the present application are all included in the technical scope of the present application. In addition, within the scope not departing from the gist of the present application, various modifications that can be conceived by those skilled in the art to the embodiments, and other modes constructed by combining some constituent elements in the embodiments are also included in the scope of the present application.

Claims

1. An automatic hanging chain type hook detaching and attaching device, which is used to connect a locomotive and a mine car, is characterized in that, It includes an automatic detachment device arranged at the rear end of the electric locomotive and a mine car axle arranged at the front end of the mine car; the automatic detachment device includes a collar, a chain with two ends respectively connected to the rear end of the electric locomotive and the collar, a claw for picking and placing the collar, and a lifting mechanism connected to the claw and used to drive the claw to move up and down.

2. The automatic hanging chain type hook detaching and attaching device according to claim 1, wherein The lifting mechanism includes a motor, a lead screw connected to the output shaft of the motor, and a lead screw nut threadedly connected to the outer wall of the lead screw; the claw is fixedly connected to the lead screw nut.

3. The automatic hanging chain type hook detaching and attaching device according to claim 2, characterized in that, The automatic detachment device further includes a fixing component; the fixing component includes an installation housing and a motor fixing bracket connected to the motor; an upper bearing seat and a lower bearing seat are respectively arranged in the upper and lower parts of the inner cavity of the installation housing, a self-aligning bearing is arranged in the upper bearing seat, and a tapered bearing is arranged in the lower bearing seat; the lead screw is arranged vertically, the upper part of the lead screw is connected to the self-aligning bearing, and the lower part of the lead screw is connected to the tapered bearing.

4. The automatic hanging chain type hook detaching and attaching device according to claim 3, characterized in that, A notch for the lead screw nut to extend out and move in the vertical direction is arranged on the outer side of the installation housing; a limit block is also arranged on the outer side of the installation housing, and the bottom end of the limit block is in the same plane as the top end of the notch.

5. The automatic hanging chain type hook detaching and attaching device according to claim 3, wherein The fixing component further includes a connecting plate arranged at the rear end of the electric locomotive; the motor fixing bracket and the installation housing are arranged on the connecting plate.

6. The automatic hanging chain type hook detaching and attaching device according to claim 1, characterized in that, The automatic detachment device further includes a guide post arranged above the claw and a guide post fixing plate connected to the guide post.

7. An automatic hanging chain type hook detaching and attaching device according to claim 1, characterized in that, The claw is of a U-shaped structure.

8. The automatic hanging chain type hook detaching and attaching device according to claim 1, wherein The collar is of a circular convex platform structure.

9. The automatic hanging chain type hook detaching and attaching device according to claim 1, wherein The mine car axle includes a pin connected to the front end of the mine car, a collar placement plate connected to the pin, and a connecting shaft vertically arranged above the collar placement plate, and a limit pin is arranged on the pin.

10. The automatic hanging chain type hook detaching and attaching device according to claim 1, characterized in that, A bumper is arranged at the rear end of the electric locomotive.

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