Platform locking structure

Abstract

The utility model relates to the field of industrial furnace production auxiliary equipment, in particular to a trolley locking structure which comprises an upper abutting block and a lower abutting block, the upper abutting block and the lower abutting block are both slidably connected to a frame of a trolley, the upper abutting block corresponds to wheels, and the lower abutting block corresponds to the wheels. The lower abutting block corresponds to a track which is arranged below the wheel and used for the wheel to walk, the upper abutting block can abut against the wheel by sliding the upper abutting block, and the lower abutting block can abut against the track by sliding the lower abutting block. The method has the effect of improving the stability of the trolley after parking.

Description

Technical Field

[0001] This application relates to the technical field of auxiliary equipment for industrial furnace production, and in particular to a trolley locking structure. Background Technology

[0002] An industrial furnace is a device for heat treatment of mechanical parts. It is usually used in conjunction with a trolley for transporting workpieces, and the industrial furnace and trolley are also known as a trolley furnace.

[0003] For example, utility model patent CN218951452U discloses a high-temperature heat treatment self-sealing trolley furnace. It mainly includes a furnace body and a trolley installed inside the furnace body that can be moved out of the furnace body. Wheels are installed under the trolley, and the wheels cooperate with tracks installed on the bottom wall of the furnace body to realize the movement of the trolley.

[0004] After the trolley moves to the designated position, it usually needs to be secured. The main methods of securing it are to use friction blocks to press against the wheels, or to use the self-locking property of the drive mechanism to limit the rotation of the wheels, thereby achieving braking and securing of the trolley. However, due to the limited friction between the wheels and the rails, the stability of the trolley is insufficient, which may affect the trolley's stopping function and the stability during the workpiece heating process. Utility Model Content

[0005] To improve the stability of the trolley after it stops, this application provides a trolley locking structure.

[0006] The trolley locking structure provided in this application adopts the following technical solution:

[0007] A trolley locking structure includes an upper abutment block and a lower abutment block, both of which are slidably connected to the trolley frame. The upper abutment block corresponds to a wheel, and the lower abutment block corresponds to a track below the wheel for the wheel to travel on. Sliding the upper abutment block can cause it to press against the wheel, and sliding the lower abutment block can cause it to press against the track.

[0008] By adopting the above technical solution, when the trolley stops, the upper and lower abutting blocks slide to make the upper abutting block press against the wheel to limit the rotation of the wheel, and the lower abutting block presses against the rail to limit the trolley frame. Multiple methods simultaneously limit the overall movement of the trolley, improving the stability of the trolley after it stops.

[0009] Optionally, the lower abutment block is located below the track.

[0010] By adopting the above technical solution, the lower abutment block is slid upward to press against the rail. In this state, the frame is subjected to the reaction force of the lower abutment block, which increases the pressure of the trolley on the rail, thereby further increasing the friction between the wheels and the rail and further improving the stability of the trolley after it stops.

[0011] Optionally, the upper abutment block is located above the rotating wheel, and a drive component is provided between the upper abutment block and the lower abutment block for driving the upper abutment block and the lower abutment block to move closer or further apart.

[0012] By adopting the above technical solution, the upper abutment block is set above the wheel, and the upper abutment block and the lower abutment block are driven to move closer or further apart by the drive component, thereby achieving synchronous positioning of the wheel and the frame.

[0013] Optionally, the drive assembly includes a drive disc and a connecting rod. The drive disc is rotatably connected to the frame. Two connecting rods are provided corresponding to the upper and lower abutment blocks. One end of the connecting rod is rotatably connected to the drive disc, and the other end is rotatably connected to the upper or lower abutment block. Rotating the drive disc can cause the upper and lower abutment blocks to move closer or further apart.

[0014] By adopting the above technical solution, the connecting rod connects the upper abutment block and the lower abutment block, so that when the drive disc rotates, it can drive one end of the connecting rod to move in a circular motion, thereby causing the upper abutment block and the lower abutment block to move closer or further apart.

[0015] Optionally, the drive assembly further includes a drive component for rotating the drive disc, the drive component being a hydraulic cylinder, one end of which is rotatably connected to the vehicle frame and the other end of which is rotatably connected to the drive disc.

[0016] By adopting the above technical solution, the drive disc is rotated by the extension and retraction of the piston rod of the hydraulic cylinder, thereby driving the drive disc.

[0017] Optionally, an extension rod is provided between the hydraulic cylinder and the drive disc. The extension rod is perpendicular to the rotation axis of the drive disc and one end is fixed to the drive disc. One end of the hydraulic cylinder is rotatably connected to the extension rod.

[0018] By adopting the above technical solution, the lever arm of the drive component when driving the drive disk to rotate is extended by extending the rod. This facilitates the drive component in driving the drive disk to rotate.

[0019] Optionally, the extension rod is made of an elastic material.

[0020] By adopting the above technical solution, the extended rod is set as an elastic rod. By controlling the extension and retraction of the hydraulic cylinder piston rod, the force applied to the drive plate can be controlled, which facilitates the limiting of the trolley according to different production conditions in the actual production process.

[0021] In summary, this application includes at least one of the following beneficial technical effects: limiting the trolley in multiple ways to improve the stability of the trolley after it stops. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the trolley according to an embodiment of this application.

[0023] Figure 2 This is a schematic diagram of the overall structure from a first angle of an embodiment of this application.

[0024] Figure 3 This is a schematic diagram of the overall structure from a second perspective of an embodiment of this application.

[0025] Reference numerals: 1. Frame; 2. Track; 21. Upper support; 22. Lower support; 23. Connecting part; 31. Upper abutment block; 32. Lower abutment block; 4. Drive assembly; 41. Drive disc; 42. Connecting rod; 43. Drive component; 44. Extension rod; 5. Wheel. Detailed Implementation

[0026] The following is in conjunction with the appendix Figure 1-3 This application is described in further detail.

[0027] Reference Figure 1 The trolley mainly includes a frame 1 and wheels 5 rotatably connected to the bottom of the frame 1. The wheels 5 are driven by a servo motor. The track 2 is laid horizontally and includes an upper support 21, a lower support 22, and a connecting part 23. The lower support 22 is fixed to the ground, the upper support 21 is spaced above the lower support 22, and the connecting part 23 is located between the upper support 21 and the lower support 22. The two sides of the connecting part 23 are integrally formed with the upper support 21 and the lower support 22 respectively, forming an "I" shaped structure.

[0028] This application discloses a trolley locking structure.

[0029] Reference Figure 2 and Figure 3A trolley locking structure includes an upper abutment block 31 and a lower abutment block 32, both of which are slidably connected to the frame 1 in a vertical direction. The upper abutment block 31 is located above the wheel 5, and the lower abutment block 32 is located below the upper support portion 21. Sliding the upper abutment block 31 allows it to press against the wheel 5, and sliding the lower abutment block 32 allows it to press against the upper support portion 21. After the lower abutment block 32 presses against the upper support portion 21, it prevents the frame 1 from moving relative to the track 2; the upper abutment block 31 presses against the wheel 5, limiting the rotation of the wheel 5. The upper abutment block 31 and the lower abutment block 32 simultaneously limit the trolley, improving the stability of the trolley after it stops. Furthermore, while the lower abutment block 32 presses against the upper support portion 21, the frame 1 experiences a downward reaction force, increasing the friction between the wheel 5 and the track 2, further improving the stability of the trolley after it stops.

[0030] Reference Figure 2 and Figure 3 A drive assembly 4 is provided between the upper abutment block 31 and the lower abutment block 32 to drive the upper abutment block 31 and the lower abutment block 32 to move closer or further apart. The drive assembly 4 includes a drive disk 41 and connecting rods 42. The drive disk 41 has a disc-shaped structure and is rotatably connected to the frame 1 around its own axis. The axis of the drive disk 41 is perpendicular to the sliding direction of the upper abutment block 31 and the lower abutment block 32. Two connecting rods 42 are provided corresponding to the upper abutment block 31 and the lower abutment block 32. One end of the connecting rod 42 is connected to the drive disk 41, and the other end is rotatably connected to either the upper abutment block 31 or the lower abutment block 32. The rotation axis of the connecting rods 42 relative to the drive disk 41 is parallel to and spaced apart from the rotation axis of the drive disk 41. The two connecting rods 42 are symmetrical about the axis of the drive disk 41. Rotating the drive disc 41 can drive the two connecting rods 42 to move in opposite directions, thereby driving the upper abutment block 31 and the lower abutment block 32 to move closer or further away from each other synchronously.

[0031] Reference Figure 2 and Figure 3 The drive assembly 4 also includes a drive component 43 for driving the drive disk 41 to rotate. In this embodiment, the drive component 43 is a hydraulic cylinder. The cylinder body is rotatably connected to the frame 1, and the piston rod of the hydraulic cylinder is rotatably connected to the drive disk 41 at a position away from the axis of the drive disk 41. The movement of the piston rod of the hydraulic cylinder can drive the drive disk 41 to rotate, thereby realizing the control of the rotation of the drive disk 41.

[0032] Reference Figure 2 and Figure 3The drive assembly 4 also includes an extension rod 44, which is located between the drive disc 41 and the drive component 43. The extension rod 44 is arranged radially along the drive disc 41, and one end is fixedly connected to the side wall of the drive disc 41. The piston rod of the hydraulic cylinder is rotatably connected to the end of the extension rod 44 away from the drive disc 41. The extension rod 44 is made of an elastic material. In actual application, by controlling the displacement of the hydraulic cylinder piston rod, the deformation of the extension rod 44 can be controlled, thereby realizing the force applied by the drive disc 41 to the upper abutment block 31 or the lower abutment block 32. On the one hand, this can reduce the occurrence of jamming of the drive component 43, and on the other hand, it can brake the trolley according to different situations.

[0033] The implementation principle of the trolley locking structure in this application embodiment is as follows: the upper abutment block 31 abuts against the wheel 5 to limit the rotation of the wheel 5. The lower abutment block 32 abuts against the rail 2 to limit the frame 1. The trolley is limited in multiple ways, thereby improving the stability of the trolley after it stops.

[0034] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A trolley locking structure, characterized in that: It includes an upper abutment block (31) and a lower abutment block (32), both of which are slidably connected to the frame (1) of the trolley. The upper abutment block (31) corresponds to the wheel (5), and the lower abutment block (32) corresponds to the track (2) below the wheel (5) for the wheel (5) to travel on. Sliding the upper abutment block (31) can make the upper abutment block (31) press against the wheel (5), and sliding the lower abutment block (32) can make the lower abutment block (32) press against the track (2).

2. The trolley locking structure according to claim 1, characterized in that: The lower abutment block (32) is located below the track (2).

3. The trolley locking structure according to claim 2, characterized in that: The upper abutment block (31) is located above the rotating wheel, and a drive assembly (4) is provided between the upper abutment block (31) and the lower abutment block (32) for driving the upper abutment block (31) and the lower abutment block (32) to move closer or further apart.

4. The trolley locking structure according to claim 3, characterized in that: The drive assembly (4) includes a drive disc (41) and a connecting rod (42). The drive disc (41) is rotatably connected to the frame (1). The connecting rod (42) is configured as two, corresponding to the upper abutment block (31) and the lower abutment block (32). One end of the connecting rod (42) is rotatably connected to the drive disc (41), and the other end is rotatably connected to the upper abutment block (31) or the lower abutment block (32). Rotating the drive disc (41) can drive the upper abutment block (31) and the lower abutment block (32) to move closer to or further away from each other.

5. The trolley locking structure according to claim 4, characterized in that: The drive assembly (4) also includes a drive component (43) for driving the drive disk (41) to rotate. The drive component (43) is a hydraulic cylinder. One end of the hydraulic cylinder is rotatably connected to the frame (1), and the other end is rotatably connected to the drive disk (41).

6. The trolley locking structure according to claim 5, characterized in that: An extension rod (44) is provided between the hydraulic cylinder and the drive disc (41). The extension rod (44) is perpendicular to the rotation axis of the drive disc (41) and one end is fixed on the drive disc (41). One end of the hydraulic cylinder is rotatably connected to the extension rod (44).

7. A trolley locking structure according to claim 6, characterized in that: The extension rod (44) is made of an elastic material.

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