Push-pull trolley for transferring kiln car

Abstract

The utility model discloses a push-and-pull trolley for transferring a kiln car, which comprises a frame, a walking power source, walking wheels and a push-and-pull mechanism, and the push-and-pull mechanism comprises a linear power source arranged on the frame and a pair of eccentric turning claws driven by the linear power source to rotate. Each eccentric turning claw comprises a gravity stop block with the gravity center located on the lower portion, a rolling wheel and a connecting piece connecting the gravity stop block and the rolling wheel together, the lower portion of the gravity stop block is hinged to the frame, and the rolling wheel is rotationally connected with the connecting piece. The gravity stop block is light in top and heavy in bottom, one side of the gravity stop block is provided with the idler wheel, the idler wheel naturally droops to enable the gravity stop block to be in a vertical state when the gravity stop block is not subjected to external force, and the kiln car can be pulled to move from one track to the other track; when external force applied by the linear power source is applied, the gravity stop block can rotate by a certain angle to avoid the kiln car so as to ensure normal push-pull operation of the kiln car, the gravity stop block automatically resets after the external force disappears, manual overturning is not needed, manual intervention is reduced, and the track switching efficiency of the kiln car is improved.

Description

Technical Field

[0001] The utility model relates to the field of machining, in particular to a push-pull trolley for transferring a kiln car. Background Art

[0002] In the factory mechanical transfer process, kiln car track switching is often encountered, that is, the kiln car is switched from one track to another track (including switching between tracks on the same side and switching between tracks on different sides) with the help of a ferry platform and a push-pull trolley. When switching tracks, it is required that both sides of the ferry platform can realize the kiln car getting on and off, so the kiln car track switching often has higher requirements for the push-pull trolley. The traditional push-pull trolley uses an electric motor as the driving power source and uses a flip claw to push and pull the kiln car, but the flip claw is a manual structure and needs to be manually turned when in use, which is inconvenient to operate, especially when the flip claw is located under the kiln car. It is more difficult to operate. Summary of the invention

[0003] In view of this, the utility model proposes a push-pull trolley for transferring a kiln car. Each pair of eccentric flaps of the push-pull trolley corresponds to a linear power source, thereby realizing automatic flipping of the eccentric flaps. The structure is simple and ingenious, and meets the needs of getting on and off the kiln car.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The push-pull trolley for transferring a kiln car described in the utility model comprises a frame, a travel power source and travel wheels, the left and right parts of the frame are both provided with a push-pull mechanism for pushing and pulling the kiln car, the push-pull mechanism comprises a linear power source arranged on the frame and a pair of eccentric flaps driven to rotate by the linear power source, each of the eccentric flaps comprises a gravity block with its center of gravity located at the bottom, a roller and a connecting piece connecting the gravity block and the roller together, the lower part of the gravity block is hinged to the frame through a first pin shaft, the roller is rotatably connected to the connecting piece through a second pin shaft, and the first pin shaft and the second pin shaft are eccentrically arranged.

[0006] In the utility model, the gravity block is light on the top and heavy on the bottom and has a roller on one side. When not subject to external force, the roller naturally droops to make the gravity block in a vertical state, which can pull the kiln car from one track to another track; when subjected to external force applied by a linear power source, the gravity block can rotate to a certain angle to avoid the kiln car to ensure normal pushing and pulling operations of the kiln car. After the external force disappears, the gravity block automatically resets, without the need for manual flipping, reducing manual intervention, and improving the track switching efficiency of the kiln car.

[0007] Preferably, the power output end of the linear power source is provided with a push block with inclined surface structures on both the left and right end surfaces, which is convenient for the roller to move up and down, and further ensures that the gravity stop block can be flipped to a certain angle under the force; a horizontally arranged guide rail is provided under the frame, and the push block reciprocates horizontally along the guide rail, effectively avoiding twisting of the push block during the horizontal reciprocating process, thereby ensuring the movement trajectory of the push block.

[0008] More preferably, the push block is a trapezoidal structure, and the length of the upper surface of the push block is consistent with the movement stroke of the linear power source, ensuring that the gravity stopper of one of the pair of eccentric flaps of the push-pull mechanism rotates to a horizontal state, while the gravity stopper of the other eccentric flap is in a vertical state and can pull the kiln car.

[0009] Preferably, during actual installation, the linear power source can be a linear motor, a cylinder, a hydraulic cylinder, or an electric push rod, and the specific selection can be flexibly based on actual working conditions.

[0010] Preferably, the frame is provided with a mounting frame coaxial with the frame, and the two gravity blocks are spaced apart on the mounting frame to ensure that the gravity blocks are on the center line of the frame, thereby ensuring that the kiln car is subjected to balanced force.

[0011] Preferably, the connecting member enables the gravity stop block and the roller to be spaced apart, and comprises a first connecting plate and a second connecting plate, one side of the first connecting plate is fixedly connected to the lower portion of the gravity stop block, the other side of the first connecting plate is connected to the second connecting plate, and the roller is rotatably connected to the second connecting plate via the second pin shaft.

[0012] Compared with the prior art, the utility model has the advantages that: the utility model uses a linear power source to control each pair of eccentric flaps, so that one of the eccentric flaps is in a vertical state and the other is in a horizontal state, thereby ensuring the automatic loading and unloading and normal pushing and pulling of the kiln car. The whole process does not require manual flipping, reducing the difficulty.

[0013] The eccentric flip claw of the utility model has a gravity stopper and an eccentric roller is provided at the lower part of the gravity stopper. When no external force is applied, the roller naturally droops to make the gravity stopper in a vertical state, and the kiln car can be pulled to move from one track to another track. When the external force is applied by the linear power source, the gravity stopper can rotate to a certain angle to avoid the kiln car to ensure the normal pushing and pulling operation of the kiln car. After the external force disappears, the gravity stopper automatically resets, and no manual flipping is required, thereby reducing manual intervention and improving the track switching efficiency of the kiln car. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2It is a side view of the utility model.

[0016] Figure 3 It is a front view of the eccentric flap claw of the utility model.

[0017] Figure 4 yes Figure 3 Top view of the .

[0018] Figure 5 yes Figure 3 Left view of .

[0019] Figure 6 This is a state diagram of the eccentric flap 3d being rotated counterclockwise to a horizontal state by the kiln car.

[0020] Figure 7 This is the state diagram of the eccentric flap 3D pulling the kiln car to move to the left.

[0021] Figure 8 This is a state diagram in which the push-pull trolley and the kiln car of the utility model are both located on the ferry platform.

[0022] Fig. 9 This is a state diagram of the kiln car being pushed and pulled to the right by using the eccentric flap 3c. DETAILED DESCRIPTION

[0023] The following is a detailed description of an embodiment of the utility model in conjunction with the accompanying drawings. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0024] It should be noted that, in the description of the present utility model, relational terms such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

[0025] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected" and "connection" that may appear should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0026] like Figure 1-5As shown, the push-pull trolley for transferring kiln cars described in the utility model includes a frame 1, a travel power source and four pairs of travel wheels 2 (of course, the travel wheels 2 can also be more pairs, such as five pairs or six pairs, depending on the length of the frame 1). When working, the travel power source drives the frame 1 to move along the track of the ferry platform.

[0027] The left and right parts of the frame 1 are symmetrically provided with push-pull mechanisms for pushing and pulling the kiln car. The push-pull mechanisms at both ends of the frame 1 have the same structure. The push-pull mechanism on the left side is described in detail below in conjunction with the accompanying drawings:

[0028] Combination Figure 1-5 It can be seen that the push-pull mechanism includes a linear power source arranged on the lower part of the frame 1 and a pair of eccentric flaps 3 driven to rotate by the linear power source; a mounting plate 4.1 is fixedly connected to the frame 1, and the mounting plate 4.1 is located below the frame 1; a support 4.2 is provided on the mounting plate 4.1, and the linear power source is a linear motor 5 with one end hinged on the support 4.2, and a push block 7 for rotating the eccentric flap 3 is hinged at the power output end of the linear motor 5;

[0029] The eccentric flap 3 comprises a gravity stopper 3.1 with its center of gravity located at the bottom, a roller 3.2 arranged at intervals from the gravity stopper 3.1, and a connecting piece connecting the gravity stopper 3.1 and the roller 3.2 together. The gravity stopper 3.1 has a pulling part and a counterweight part for pulling the kiln car to move. The pulling part is a triangular structure. The counterweight part of the gravity stopper 3.1 is hinged to the frame 1 through a first pin shaft. The connecting piece comprises a first connecting plate 3.3 and a second connecting plate 3.4. One side of the first connecting plate 3.3 is fixedly connected to the counterweight part of the gravity stopper 3.1, and the other side thereof is fixedly connected to the second The connecting plate 3.4 is fixedly connected, and the roller 3.2 is rotatably arranged on the second connecting plate 3.4 through the second pin shaft. The first connecting plate 3.3 and the second connecting plate make the gravity block 3.1 and the roller 3.2 arranged at intervals, and the first pin shaft and the second pin shaft are arranged eccentrically to ensure that the pulling part of the eccentric flap 3 automatically resets to a vertical state after the external force is removed; a mounting frame 6 coaxial with the frame 1 is provided, and the counterweight parts of the two eccentric flaps 3 are rotatably arranged in the mounting frame 6 through the first pin shaft, so that the pulling part is located at the center of the frame 1, ensuring that the kiln car is balanced. In the utility model, due to the counterweight and eccentric design, the eccentric flap 3 can only rotate counterclockwise, which is convenient for hooking or pushing the kiln car.

[0030] In actual operation, the gravity stopper 3.1 is light on the top and heavy on the bottom and has an eccentric roller 3.2 on one side. When not subject to external force, the roller 3.2 naturally droops to make the gravity stopper 3.1 in a vertical state, which can pull the kiln car from one track to another. When subjected to external force applied by a linear power source or the inclined surface of the upright flip claw, the gravity stopper 3.1 can rotate a certain angle to avoid the kiln car to ensure the normal pushing and pulling operation of the kiln car. After the external force disappears, the gravity stopper 3.1 automatically resets, without the need for manual flipping, reducing manual intervention and improving the track switching efficiency of the kiln car.

[0031] For the convenience of distinction, the utility model marks the four eccentric flaps 3 from left to right in sequence as eccentric flap 3a, eccentric flap 3b, eccentric flap 3c and eccentric flap 3d.

[0032] Combination Figure 1-2 It can be seen that the left and right end surfaces of the push block 7 are inclined structures. During actual installation, the push block 7 is preferably an isosceles trapezoidal structure, and the length of its top surface is consistent with the stroke of the linear motor 5. For example, when the stroke of the linear motor 5 is 10 cm, the length of the top surface of the push block 7 is 10 cm, so that when the linear motor 5 is in the maximum stroke and minimum stroke states, the gravity stopper 3.1 of one eccentric flap 3 is in a horizontal state and the other is in a vertical state.

[0033] Take the pair of eccentric flaps 3 on the left as an example: Figure 1-5 It can be seen that when the linear motor 5 is in the minimum stroke, the eccentric flap 3a is not subject to external force and is in a vertical state, and the push block 7 limits the counterclockwise rotation of the eccentric flap 3a, so it can be used to push the cart; at this time, the roller 3.2 of the eccentric flap 3b is located on the top surface of the push block 7, and the eccentric flap 3b is in a horizontal state under force; combined with Figure 2 It can be seen that when the push block 7 extends from the minimum stroke position to the maximum stroke position, the left inclined surface of the push block 7 forces the roller 3.2 of the eccentric flap 3a to rotate to the top surface of the push block 7, and the eccentric flap 3a is in a horizontal state; the roller 3.2 of the eccentric flap 3b falls off the push block 7 to automatically reset to a vertical state. Due to structural restrictions, the eccentric flap 3b can only rotate counterclockwise and can pass through the bottom of the kiln car and hook the limit block on the kiln car to achieve pulling. In actual work, pulling, pushing, or a combination of pushing and pulling can be selected according to specific working conditions.

[0034] During actual installation, in order to ensure the linear motion trajectory of the push block 7, a guide rail 8 is horizontally arranged below the frame 1. The two ends of the guide rail 8 are fixedly connected to the frame 1 through a connecting frame. The guide rail 8 has a limit groove that cooperates with the push block 7. The push block 7 is clamped in the limit groove, which effectively ensures the linear motion trajectory of the push block 7.

[0035] In actual operation, the push-pull trolley of the utility model combined with the ferry platform can transition the kiln car from the left side of the ferry platform to the right side, or from the right side to the left side; in the transition process, the push-pull trolley can be used, the pull-pull trolley can be used, or the push-pull combination mode can be used. The following takes the transition of the kiln car F1 from the right to the left side as an example to explain the push-pull process of the utility model in more detail:

[0036] The push-pull trolley of the utility model is moved to the right to the bottom of the kiln car F1. When the linear motor 5b is at the minimum stroke, the eccentric flap 3c is in a horizontal state and the eccentric flap 3d is in a vertical state. When the eccentric flap 3d moves to the position of the kiln car, it is forced to rotate counterclockwise under the restriction of the kiln car. Figure 6 ;

[0037] When the eccentric flap 3d passes through the kiln car F1, it automatically resets to the vertical state. Adjust the position of the push-pull trolley so that the eccentric flap 3d is located behind the limit block at the front end of the kiln car F1 and then hooks the limit block at the front end of the kiln car F1; move the push-pull trolley to the left. During this process, the push-pull trolley pulls the kiln car to the left synchronously through the eccentric flap 3d until the kiln car F1 is completely located on the ferry platform. For details, see Figure 7 ;

[0038] After the kiln car is completely on the ferry platform F2, move the push-pull trolley to the right onto the ferry platform F2, and use the ferry platform to move the push-pull trolley kiln car to the corresponding position of the track that needs to be switched. For details, see Figure 8 ;

[0039] After it is in place, use the eccentric claw 3c to push the kiln car F1 to the right to the designated track. Fig. 9 Of course, other eccentric flaps can also be used to push the kiln car F1 to the designated track on the left.

[0040] Finally, it should be emphasized that the above is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions recorded in the aforementioned embodiments without creative work, or replace some of the technical features therein with equivalents. Therefore, any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A push-pull trolley for transferring a kiln car, comprising a frame, a travel power source and travel wheels, characterized in that: The left and right parts of the frame are both provided with a push-pull mechanism for pushing and pulling the kiln car, the push-pull mechanism includes a linear power source arranged on the frame and a pair of eccentric claws driven to rotate by the linear power source, each of the eccentric claws includes a gravity block with its center of gravity located at the bottom, a roller and a connecting piece connecting the gravity block and the roller together, the lower part of the gravity block is hinged to the frame through a first pin shaft, the roller is rotatably connected to the connecting piece through a second pin shaft, and the first pin shaft and the second pin shaft are eccentrically arranged.

2. The push-pull trolley for transferring a kiln car according to claim 1, characterized in that: A push block with inclined surface structures on both left and right end surfaces is arranged at the power output end of the linear power source; a horizontally arranged guide rail is arranged below the frame, and the push block moves back and forth horizontally along the guide rail.

3. The push-pull trolley for transferring a kiln car according to claim 2, characterized in that: The push block is a trapezoidal structure, and the length of the upper surface of the push block is consistent with the movement stroke of the linear power source.

4. The push-pull trolley for transferring a kiln car according to claim 1, characterized in that: The linear power source is a linear motor, a cylinder, a hydraulic cylinder or an electric push rod.

5. The push-pull trolley for transferring a kiln car according to claim 1, characterized in that: The frame is provided with a mounting frame coaxial with the frame, and the two gravity stoppers are spaced apart on the mounting frame.

6. The push-pull trolley for transferring a kiln car according to claim 1, characterized in that: The connecting member enables the gravity stopper and the roller to be spaced apart, and includes a first connecting plate and a second connecting plate, one side of the first connecting plate is fixedly connected to the lower part of the gravity stopper, and the other side of the first connecting plate is connected to the second connecting plate, and the roller is rotatably connected to the second connecting plate via the second pin shaft.

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