Auxiliary assembly device for railway mining vehicle wheels

Abstract

The present application relates to the technical field of rail car manufacturing, and discloses a rail car wheel set auxiliary assembly device, which comprises two conveyors and an axle positioning frame, the two conveyors are arranged in parallel, the axle placed on the axle positioning frame is arranged perpendicularly to one side end of the two conveyors, a moving frame is arranged between the two conveyors, two symmetrical rotating shafts are arranged on the moving frame, gears are arranged on the rotating shafts, a U-shaped frame that can move up and down is arranged on the moving frame between the two gears, tooth surfaces that can engage with the corresponding gears are arranged on the two sides of the U-shaped frame, third hydraulic cylinders are fixedly arranged at the ends of the rotating shafts, and a rail car wheel grabbing mechanism is connected to the end of each third hydraulic cylinder; the auxiliary assembly device disclosed by the present application simultaneously realizes the grabbing, rotating positioning and insertion process between the rail car wheel and the axle, greatly simplifies the installation process of the rail car wheel set, and improves the assembly effect.

Description

Technical Field

[0001] The invention relates to the technical field of rail mining car manufacturing, and in particular discloses an auxiliary assembly device for a rail mining car wheel pair. Background Art

[0002] A railcar is a narrow-gauge railway vehicle used to transport materials such as coal, ore, and waste rock in mines. The vehicle's stable movement on the track is achieved by the limiting action between the wheel set at the bottom of the car frame and the track. In the existing railcar manufacturing process, the wheel set must be assembled first and then connected to the bottom of the car frame. Currently, the vast majority of wheel sets on the market consist of two rail wheels and an axle. The two rail wheels are inserted at both ends of the axle, and the rail wheels and the axle are then fixedly connected via connectors or covers.

[0003] For example, the utility model patent application number 2023216981473 discloses a railway mining wheel pair, which includes an axle and a mining wheel. A reinforcement mechanism is installed between the axle and the mining wheel. The reinforcement mechanism includes a collar, a fixed ring, a spring, a movable ring, a limit rod, an end ring, a ring groove and an apron. The end of the axle is sleeved with a collar, and the collar is fixedly connected to the fixed ring on the side of the mining wheel facing the mining wheel. The overall structure of the mining wheel disclosed in this patent is the most commonly used mining wheel pair on the market. During its assembly process, the operator usually needs to use a lifting device to place the axle on a mounting frame for positioning, and then use the lifting device to lift the two mining wheels in turn, and cooperate with another operator to move the lifted mining wheels close to the side end of the axle so that the mounting hole on the mining wheel is aligned with the axle end. After alignment, the two are inserted and finally fixed using a connector. The entire rail mine car wheel assembly process requires two operators to work together, and the axle and two mine car wheels must be hoisted in sequence. This not only results in high labor intensity and low work efficiency for the operators, but also poses a safety hazard when the hoisting equipment is hoisting the axle and the mine car wheels. Based on the fact that the existing rail mine car wheel installation process is limited by the inadequacy of the equipment, this application proposes a rail mine car wheel auxiliary assembly device that can easily and quickly realize rail mine car wheel assembly. Summary of the Invention

[0004] The present invention aims to provide an auxiliary assembly device for a railway mining vehicle wheel pair, so as to realize rapid and convenient installation of the railway mining vehicle wheel pair.

[0005] The present invention is achieved through the following technical solutions:

[0006] A rail mine wheel auxiliary assembly device comprises two conveyors and axle positioning frames, the two conveyors are arranged in parallel, and the axles placed on the axle positioning frames are arranged perpendicular to one side end of the two conveyors, a movable frame arranged close to or away from the axle positioning frame is arranged between the two conveyors, the movable frame is provided with two symmetrically arranged rotating shafts, and the rotating shafts are both provided with gears, a U-shaped frame that moves up and down is provided on the movable frame located between the two gears, and tooth surfaces meshing with corresponding gears are provided on both sides of the U-shaped frame, a third hydraulic cylinder is fixedly provided at the end of the rotating shaft, and the end of each third hydraulic cylinder is connected to a mine wheel grabbing mechanism that grabs the mine wheel on the corresponding conveyor.

[0007] When the mine wheel is in a state of being moved to the position just below the mine wheel grabbing mechanism, the third hydraulic cylinder is driven by the hydraulic cylinder to push the mine wheel grabbing mechanism downward, and then grab the mine wheel. After grabbing, the U-shaped frame is pushed downward again. At this time, the meshing transmission of the tooth surfaces on both sides of the U-shaped frame and the gears can make the two third hydraulic cylinders, the mine wheel grabbing mechanism and the grabbed mine wheel rotate to both sides, and the originally lying mine wheel is rotated to be vertical and located on both sides of the wheel axle, and then the third hydraulic cylinder is controlled to retract to insert the mounting holes of the two mine wheels into the two ends of the wheel axle, and finally the fasteners are manually installed to connect the wheel axle and the mine wheel into an integral wheelset, and the mine wheel grabbing mechanism is withdrawn and reset. There is no need to use lifting equipment to lift and align the mine wheel, which greatly improves the installation speed of the mine wheel pair and simplifies the installation process.

[0008] As a further arrangement of the above scheme, the mine wheel grabbing mechanism includes a chuck, and a waist-shaped groove extending toward the wheel axle positioning frame is provided at the center of the chuck, a notch rotating ring is rotatably provided on the outer circular surface of the chuck, and a plurality of guide grooves are provided on the side of the notch rotating ring, and a limiting rod corresponding to each guide groove is inserted through the outer circular surface of the chuck, and a guide block matching the guide groove is provided at the end of the limiting rod.

[0009] As a further configuration of the above solution, one end of the guide chute is close to the center of the circle, and the other end is inclined away from the center of the circle.

[0010] As a further configuration of the above scheme, the outer cylindrical surface of the chuck is provided with a notched arc-shaped slide rail matching the notched rotating ring, the chuck is provided with an adjusting motor, the adjusting motor is connected to a bevel gear, and the notched rotating ring is provided with a notched bevel gear ring meshing with the bevel gear.

[0011] The present invention designs the above-mentioned mine wheel grabbing mechanism. When grabbing the mine wheel on the conveyor, the chuck covers the top of the mine wheel, and then starts the adjusting motor. The transmission action between the bevel gear and the notched bevel gear ring will cause the notched rotating ring to rotate a certain angle. During the rotation of the notched rotating ring, the action between the guide block and the guide slide groove will cause all the limiting rods to move radially toward the inside of the chuck, and the protruding wheel edge of the mine wheel will be clamped by multiple limiting rods to prevent the grabbed mine wheel from slipping during the lifting and rotation process; when the operator installs the fasteners between the wheel axle and the mine wheel, the adjusting motor can be started in the reverse direction to release the limiting effect on the mine wheel, and it will move back along the direction of the waist-shaped notch during the separation process.

[0012] As a further configuration of the above scheme, the wheel axle positioning frame includes a bracket, a sleeve is provided at the top of the bracket, a rotating rod is rotatably connected to the sleeve, both ends of the rotating rod are fixedly connected to guide plates, and both ends of the guide plates are provided with arc-shaped baffles, and a hydraulic telescopic rod is provided on the bracket for driving the guide plate to rotate and adjust around the rotating rod.

[0013] As a further configuration of the above solution, a reinforcement plate is connected between the two guide plates, the hydraulic telescopic rod is rotatably arranged at the lower end of the bracket, and the end of the hydraulic telescopic rod is rotatably connected to the reinforcement plate.

[0014] The structural design of the above-mentioned wheel axle positioning frame can make the guide plate form a lever structure. When loading the wheel axle, one end of the guide plate is placed at the lowest position to facilitate the loading of the wheel axle. Then the guide plate is rotated to make the wheel axle roll to the arc-shaped baffle under the action of gravity for positioning, and the mine wheel is installed and connected. When the mine wheel and the wheel axle are installed, the entire track mine wheel pair can be quickly removed by the action of the lever. The whole operation process is very simple and convenient, and saves time and effort.

[0015] As a further configuration of the above scheme, a base is provided between the two conveyors, a first slide rail parallel to the conveyor is provided on the base, the movable frame is slidably provided on the first slide rail, and a first hydraulic cylinder for pushing the movable frame is provided on the base.

[0016] As a further configuration of the above solution, a second vertical slide rail is provided on the movable frame, the U-shaped frame is slidably arranged on the second slide rail, and a second hydraulic cylinder for pushing the U-shaped frame is provided on the top of the movable frame.

[0017] As a further configuration of the above solution, a positioning ring is fixed on the conveyor located directly below the mine wheel grabbing mechanism, and a positioning rod adapted to the hole on the mine wheel is provided on the mine wheel grabbing mechanism.

[0018] Compared with the prior art, the present invention has at least the following beneficial effects:

[0019] The rail mine wheel pair auxiliary assembly device disclosed in the present invention grabs the mine wheels conveyed from the conveyors on both sides through two mine wheel grabbing mechanisms, and then rotates them in opposite directions to be vertical after grabbing, so that the mine wheel is aligned with the wheel axle placed on the wheel axle positioning frame, and then the mine wheel is quickly inserted into the end of the wheel axle through the retraction action of the third hydraulic cylinder. After insertion, the operator can use fasteners to fix the two together; the entire auxiliary assembly device realizes the grabbing, rotation positioning and insertion process between the mine wheel and the wheel axle at the same time through simple structural transmission, which greatly simplifies the installation process of the mine wheel pair, improves the assembly effect, reduces the labor intensity of the operators, and has better safety during the entire assembly process.

[0020] The present invention further designs the wheel axle positioning frame, so that during the process of loading the wheel axle and unloading the mine wheel pair, the lever structure formed by the guide plate can realize low-position loading and unloading, without the need to use lifting equipment to lift the wheel axle, and at the same time, the guide plate and the arc-shaped baffle can be used to quickly roll the wheel axle to the position where it is installed with the mine wheel after loading; the structural design of the entire wheel axle positioning frame is simple and novel, making the entire operation process very simple and convenient, and saving time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0022] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention from a first angle;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure from a second angle of the present invention;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the movable frame, gears, U-shaped frame, etc. in the present invention.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the third hydraulic cylinder, the mine wheel grabbing mechanism, etc. in the present invention;

[0026] Figure 5 This is a schematic diagram of the assembled three-dimensional structure of the mining wheel grabbing mechanism of the present invention;

[0027] Figure 6 For the present invention Figure 4 Schematic diagram of the enlarged structure at A in the middle;

[0028] Figure 7It is a schematic diagram of the three-dimensional structure of the axle positioning frame in the present invention. DETAILED DESCRIPTION

[0029] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0030] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of this application can be combined with each other. Figures 1 to 7 , and describes the application in detail with reference to embodiments. Example 1

[0031] Example 1 discloses a railway mining vehicle wheel auxiliary assembly device, refer to the attached Figure 1 and attached Figure 2 The main body includes two parallel belt conveyors 1 and an axle positioning frame 2 for placing the axle. The two belt conveyors 1 are used to transport the mine wheels. Of course, the belt conveyors 1 can also be replaced by roller conveyors. The axle positioning frame 2 is used to place the axle and make the placed axle perpendicular to the two belt conveyors 1.

[0032] A base 3 is provided between the two belt conveyors 1, and a movable frame 4 is provided on the base 3 along the conveying direction of the belt conveyors 1. Specifically, a first slide rail 5 is provided on the upper surface of the base 3, and a slide rail groove matching the first slide rail 5 is provided at the bottom of the movable frame 4. A first hydraulic cylinder 6 is fixed to the end of the base 3 away from the wheel axle positioning frame 2, and the end of the first hydraulic cylinder 6 is connected to the movable frame 4, so that under the action of the first hydraulic cylinder 6, the movable frame 4 can move toward or away from the wheel axle positioning frame 2.

[0033] Reference Attachment Figure 3 and attached Figure 4Two rotating shafts 7 are rotatably connected to the mobile frame 4, and a gear 8 is fixedly welded at one end of each rotating shaft 7. The two gears 8 are mirror-symmetrical and located directly above the corresponding belt conveyor 1. A second hydraulic cylinder 9 is fixed on the top of the mobile frame 4, and then a U-shaped frame 10 is connected to the lower end of the second hydraulic cylinder 9, and both sides of the U-shaped frame 10 are provided with tooth surfaces that mesh with the corresponding gears 8. In order to ensure the stable up and down movement of the U-shaped frame 10, a second vertical downward slide rail 11 is also fixed on the mobile frame 4, and then the mobile frame 4 is slidably set on the second slide rail 11, so that under the action of the second hydraulic cylinder 9, the U-shaped frame 10 can stably move up and down along the second slide rail 11, and the engagement transmission between the tooth surfaces and the corresponding gears 8 during the up and down movement process causes the two rotating shafts 7 to rotate synchronously in opposite directions. A mounting seat 12 is fixedly welded at the ends of the two rotating shafts 7, and a third hydraulic cylinder 13 is fixed on each mounting seat 12, and then a mine wheel grabbing mechanism 14 is connected to the end of each third hydraulic cylinder 13.

[0034] Reference Attachment Figure 5 and attached Figure 6 The mine wheel grabbing mechanism 14 comprises a chuck 141. The inner diameter of the opening on the side of the chuck 141 is slightly larger than the maximum wheel diameter of the mine wheel. A waist-shaped notch 142 is defined at the center of the chuck 141, extending toward the wheel axle positioning frame 2. A plurality of radial holes are evenly spaced along the outer circumference of the chuck 141, each of which is inserted into a limiting rod 143. A matching notched arcuate slide rail 144 is fixed to the outer circumference of the chuck 141, and a matching notched rotating ring 145 is rotatably mounted on the notched arcuate slide rail 144. An adjusting motor 146 is fixedly mounted on the chuck 141, and a bevel gear 147 is connected to the output shaft of the adjusting motor 146. At the same time, a notched bevel gear ring 148 meshing with the bevel gear 147 is provided on the notched rotating ring 145, so that under the power input of the adjusting motor 146 and the meshing transmission of the bevel gear 147 and the notched bevel gear ring 148, the notched rotating ring 145 can rotate at a fixed angle on the notched arc slide 144 according to the set program.

[0035] On the side of the notched rotating ring 145 facing the limiting rod 143, there are evenly opened guide grooves 149 aligned with each limiting rod 143, and one end of the guide groove 149 is close to the center of the circle, and the other end is inclined away from the center of the circle, and then the outer end of each limiting rod 143 is connected to a guide block 150 extending into the guide groove 149.

[0036] Finally, in order to ensure that the mine car wheel grabbing mechanism 14 can be precisely aligned with the mine car wheels on the belt conveyor 1, a positioning ring 101 is fixed on the belt conveyor 1 directly below the mine car wheel grabbing mechanism 14, and a positioning rod 151 that is adapted to the hole on the mine car wheel is connected to the inner end wall of the chuck 141.

[0037] In the use of the rail mine car wheel pair auxiliary assembly device disclosed in Embodiment 1, the wheel shaft is first placed on the wheel shaft positioning frame 2 and extended outward by a certain length at both ends, and at the same time, the belt conveyor 1 is used to convey two mine car wheels to the position of the positioning ring 101, so that the mine car wheel grabbing mechanism 14 is aligned with the mine car wheels above and below, and the position of the mine car wheels is adjusted before grabbing.

[0038] Subsequently, the third hydraulic cylinder 13 is started to move the mine car wheel grabbing mechanism 14 downward until the chuck 141 is sleeved on the mine car wheel, at which time the adjusting motor 146 is started to rotate the notch rotating ring 145 on the notch arc-shaped sliding rail 144 by a certain angle through the meshing transmission of the bevel gear 147 and the notch bevel gear ring 148. In the process of rotation of the notch rotating ring 145, due to the guiding effect between the guide sliding groove 149 and the guide block 150, all the limiting insertion rods 143 will be inserted into the interior of the chuck 141 and clamp the protruding wheel rim of the mine car wheel.

[0039] Then, the U-shaped frame 10 is pushed towards by starting the second hydraulic cylinder 9, and in the process of downward movement of the U-shaped frame 10, the mine car wheel grabbing mechanism 14 and the grabbed mine car wheel will be rotated outward by 90° to a horizontal state through the meshing transmission between the tooth surface and the gear, and at this time the mine car wheels are located on both sides of the wheel shaft.

[0040] Finally, the third hydraulic cylinder 13 is controlled to retract so that the two mine car wheel grabbing mechanisms 14 move synchronously towards each other, so that the mounting holes in the centers of the two mine car wheels are matched with the two ends of the wheel shaft. After matching, the operating personnel fix and connect the mine car wheels and the wheel shaft using fasteners. After the wheel pair is installed, the adjusting motor 146 is first controlled to reset, and then the first hydraulic cylinder 6 is controlled to retract so that the mine car wheel grabbing mechanism 14 is separated from the wheel shaft through the side end opening. Embodiment 2

[0041] Embodiment 2 discloses a rail mine car wheel pair auxiliary assembly device that optimizes the design of the wheel shaft positioning frame 2 based on the technical scheme in Embodiment 1, and the same parts as Embodiment 1 will not be described again.

[0042] This embodiment 2 mainly designs the wheel shaft positioning frame 2, so that the wheel shaft is not only easy to position during feeding, but also can be easily unloaded after the installation of the mine car wheels. Referring to the drawings Figure 1 and the drawings Figure 7The axle positioning frame 2 in this embodiment includes a bracket 201 fixed to the ground, a sleeve 202 is provided on the top of the bracket 201, a rotating rod 203 passing through the sleeve 202 is rotatably connected, and guide plates 204 parallel to each other are fixed at both ends of the rotating rod 203, so that the guide plates 204 form a lever structure with the rotating rod 203 as the fulcrum.

[0043] Both ends of the two guide plates 204 are curved upward with curved baffles 205. When the wheel shaft rolls down along the guide plates 204 to the curved baffles 205, it can be restrained and positioned by the curved baffles 205. Finally, a hydraulic telescopic rod 206 is rotatably mounted at the lower end of the bracket 201. A reinforcement plate 207 is connected between the two curved baffles 205, and the end of the hydraulic telescopic rod 206 is rotatably connected to the reinforcement plate 207.

[0044] In this embodiment 2, through the design of the above-mentioned wheel axle positioning frame 2, when the wheel axle is being loaded, the hydraulic telescopic rod 206 is first controlled to shorten, and then the guide plate 204 is rotated to the lowest end away from the belt conveyor 1 using the rotating rod 203 as a fulcrum. At this time, the wheel axle can be quickly loaded. The hydraulic telescopic rod 206 is then controlled to extend, causing the guide plate 204 to rotate in the opposite direction with the rotating rod 203. At this time, the wheel axle can roll toward one end of the belt conveyor 1 under the action of gravity until it is restricted and positioned by the arc-shaped baffle 205, and the wheel axle is positioned at the installation point. Finally, after the mine wheel is connected to the wheel axle, the hydraulic telescopic rod 206 is controlled again to roll the track mine wheel to the other side to the lowest end, thereby facilitating the operator to remove it from the wheel axle positioning frame 2.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A railway mining vehicle wheel auxiliary assembly device, characterized in that: The invention comprises two conveyors and axle positioning frames, wherein the two conveyors are arranged in parallel, and the axles placed on the axle positioning frames are arranged perpendicular to one side end of the two conveyors, and a movable frame arranged close to or away from the axle positioning frame is arranged between the two conveyors, and two symmetrically arranged rotating shafts are provided on the movable frame, and gears are provided on the rotating shafts, and a U-shaped frame that moves up and down is provided on the movable frame located between the two gears, and tooth surfaces meshing with corresponding gears are provided on both sides of the U-shaped frame, and a third hydraulic cylinder is fixedly provided at the end of the rotating shaft, and a mine wheel grabbing mechanism that grabs the mine wheel on the corresponding conveyor is connected to the end of each third hydraulic cylinder; The mining wheel grabbing mechanism includes a chuck, and a waist-shaped notch extending toward the wheel axle positioning frame is provided at the center of the chuck. A notch rotating ring is rotatably provided on the outer circumference of the chuck, and a plurality of guide slots are provided on the side of the notch rotating ring. A limiting rod corresponding to each guide slot is inserted through the outer circumference of the chuck, and a guide block matching the guide slot is provided at the end of the limiting rod. One end of the guide chute is close to the center of the circle, and the other end is away from the center of the circle and is inclined; The outer surface of the chuck is provided with a notched arc slide rail matching the notched rotating ring. The chuck is provided with an adjustment motor connected to a bevel gear. The notched rotating ring is provided with a notched bevel gear ring meshing with the bevel gear.

2. The auxiliary assembly device for railway mining wheel pairs according to claim 1, characterized in that: The wheel axle positioning frame includes a bracket, a sleeve is provided at the top of the bracket, a rotating rod is rotatably connected to the sleeve, both ends of the rotating rod are fixedly connected to guide plates, and both ends of the guide plates are provided with arc-shaped baffles, and a hydraulic telescopic rod is provided on the bracket for driving the guide plate to rotate and adjust around the rotating rod.

3. The auxiliary assembly device for railway mining wheel pairs according to claim 2, characterized in that: A reinforcement plate is connected between the two guide plates. The hydraulic telescopic rod is rotatably arranged at the lower end of the bracket, and the end of the hydraulic telescopic rod is rotatably connected to the reinforcement plate.

4. The auxiliary assembly device for railway mining wheel pairs according to claim 1, characterized in that: A base is provided between the two conveyors, a first slide rail parallel to the conveyors is provided on the base, the movable frame is slidably provided on the first slide rail, and a first hydraulic cylinder for pushing the movable frame is provided on the base.

5. The auxiliary assembly device for railway mining vehicle wheels according to claim 1, characterized in that: The movable frame is provided with a vertical second slide rail, the U-shaped frame is slidably arranged on the second slide rail, and the top of the movable frame is provided with a second hydraulic cylinder for pushing the U-shaped frame.

6. The auxiliary assembly device for railway mining vehicle wheels according to claim 1, characterized in that: A positioning ring is fixed on the conveyor located just below the mine wheel grabbing mechanism, and a positioning rod adapted to the hole on the mine wheel is provided on the mine wheel grabbing mechanism.

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