Mechanical automatic locking and fixing mechanism for hydraulic telescopic tail

Abstract

The utility model relates to a mechanical automatic locking and fixing mechanism for a hydraulic telescopic tail. The device consists of a stacking block push rod, a vertical plate, a lower stacking block frame, a positioning plate, an upper stacking block frame, a stacking block group, a stacking block centralizing rod, a spring, a flat gasket, a double-locking nut, an oil cylinder, a fixed vertical plate A and a movable vertical plate B, when the oil cylinder pushes the movable vertical plate B to move rightwards, the stacking block set is stopped by the stacking block push rod and the stacking block A1 is contained in the gap between the vertical plate and the positioning plate, the stacking block A1 vertically falls into the gap between the vertical plate and the positioning plate and falls on the lower stacking block frame, and due to positioning of the stacking block A1, the movable vertical plate B is subjected to leftward resilience external force but cannot return to the original position. When the oil cylinder relieves pressure and has no hydraulic thrust, the stacking block set enables the whole mechanism to complete the automatic mechanical locking and fixing function. And on-site unmanned operation is realized.

Description

Technical Field

[0001] The utility model relates to an open-pit coal mine heavy-duty scraper feeder, which is used for transferring materials between an open-pit mine truck and a long-distance belt conveyor. Background Art

[0002] As open-pit coal mines continue to be mined, the problem of transferring between open-pit mine trucks and long-distance belt conveyors has become increasingly prominent. The bottleneck of equipment structure needs to be broken through. It is necessary to develop a transfer equipment suitable for the open-pit coal mine environment, and a hydraulic telescopic tail mechanical automatic locking and fixing mechanism is an important component of it. Summary of the invention

[0003] The purpose of the utility model is to solve the transfer problem between open-pit mine trucks and long-distance belt conveyors, and to develop a transfer feeding device suitable for open-pit coal mine environments, wherein a hydraulic telescopic tail mechanical automatic locking and fixing mechanism is an important component.

[0004] The technical scheme of the utility model is composed of a code block push rod 1, a vertical plate 2, a lower code block frame 3, a positioning plate 4, an upper code block frame 5, a code block group 6, a code block righting rod 7, a spring 8, a flat washer 9, a double locking nut 10, a cylinder 11, a fixed vertical plate A, and a movable vertical plate B. The code block push rod 1, the vertical plate 2, the lower code block frame 3, and the left end of the oil cylinder 11 are fixed on the fixed vertical plate A; the code block righting rod 7, the spring 8, the flat washer 9, and the double locking nut 10 are assembled in the through hole on the upper right part of the code block push rod 1, and the code block righting rod 7 is free to pass through the through hole on the code block push rod 1 with clearance fit, the spring 8, the flat washer 9, and the double locking nut 10 are sequentially sleeved on the code block push rod 1, and the double locking nut 10 is locked and positioned, and the spring 8 is moderately compressed between the code block push rod 1 and the flat washer 9 to generate a pre-tightening elastic force; the positioning plate 4, the upper code block frame 5, and the left end of the oil cylinder 11 are fixed on the movable vertical plate B; the code block group 6 is arranged on the upper code block frame 5 in order of thickness. When the oil cylinder 11 pushes the movable vertical plate B to move to the right, the code block group 6 is blocked by the code block push rod 1 and remains motionless. When the gap between the vertical plate 2 and the positioning plate 4 accommodates the code block A1, the code block A1 falls vertically into the gap between the vertical plate 2 and the positioning plate 4 and falls on the lower code block frame 3. The pushing stroke of the oil cylinder 11 is the tensioning stroke of the mechanism to resist external force, and it is also the positioning length generated by the thickness of the code block A1. At this time, the oil cylinder 11 does not work when the pressure is relieved, the fixed vertical plate A is fixed, and when the movable vertical plate B is subjected to the left rebound pressure, due to the positioning of the code block A1, the movable vertical plate B cannot return to its original position. The code block straightening rod 7 helps the code block A1 and will not fall when it falls. If it is necessary to continue to tighten, the oil cylinder 11 pushes the movable vertical plate B to continue to the right, and A2~A6 of the code block group 6 fall vertically into the gap between the vertical plate 2 and the positioning plate 4 in turn. The larger the gap, the longer the positioning distance. When the oil cylinder 11 is depressurized and there is no hydraulic thrust, the movable vertical plate B is subjected to a leftward rebound external force, and the code block group 6 keeps the movable vertical plate B motionless, and the overall mechanism completes the automatic mechanical locking and fixing function.

[0005] The beneficial effects of the utility model are:

[0006] Solve the bottleneck problem of transfer between open-pit mine trucks and long-distance belt conveyors, develop a transfer feeding equipment suitable for open-pit coal mine environment, and provide a reliable and efficient mechanical automatic locking and fixing mechanism for the hydraulic telescopic tail of the open-pit mine heavy-duty scraper feeder.

[0007] The technical solution of the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 This is a general diagram of a mechanical automatic locking and fixing mechanism for the tail of a hydraulic telescopic machine of the utility model;

[0009] Figure 2 This is a diagram of the middle working position of a hydraulic telescopic tail mechanical automatic locking and fixing mechanism of the utility model;

[0010] Figure 3 This is a diagram of the limit working position of the mechanical automatic locking and fixing mechanism of the hydraulic telescopic tail of the utility model;

[0011] Figure 4 This is a schematic diagram of the overall diagram of a hydraulic telescopic tail mechanical automatic locking and fixing mechanism of the utility model;

[0012] Figure 5 This is a schematic diagram of the middle working position of the mechanical automatic locking and fixing mechanism of the hydraulic telescopic machine tail of the utility model;

[0013] Figure 6 This is a schematic diagram of the extreme working position of the mechanical automatic locking and fixing mechanism of the hydraulic telescopic tail of the utility model;

[0014] In the figure: 1 code block push rod, 2 vertical plate, 3 lower code block frame, 4 positioning plate, 5 upper code block frame, 6 code block group, 7 code block righting rod, 8 spring, 9 flat washer, 10 double locking nut, 11 oil cylinder, A fixed vertical plate, B movable vertical plate, A1~A6 code blocks. DETAILED DESCRIPTION

[0015] like Figure 1 , 4 As shown, the code block push rod 1, the vertical plate 2, the lower code block frame 3, the positioning plate 4, the upper code block frame 5, the code block group 6, the code block straightening rod 7, the spring 8, the flat washer 9, the double locking nut 10, the cylinder 11, the fixed vertical plate A, and the movable vertical plate B are composed. The code block push rod 1, the vertical plate 2, the lower code block frame 3, and the left end of the oil cylinder 11 are fixed on the fixed vertical plate A; the code block righting rod 7, the spring 8, the flat washer 9, and the double locking nut 10 are assembled in the through hole on the upper right part of the code block push rod 1, and the code block righting rod 7 is free to pass through the through hole on the code block push rod 1 with clearance fit, the spring 8, the flat washer 9, and the double locking nut 10 are sequentially sleeved on the code block push rod 1, and the double locking nut 10 is locked and positioned, and the spring 8 is moderately compressed between the code block push rod 1 and the flat washer 9 to generate a pre-tightening elastic force; the positioning plate 4, the upper code block frame 5, and the left end of the oil cylinder 11 are fixed on the movable vertical plate B; the code block group 6 is arranged on the upper code block frame 5 in order of thickness.

[0016] like Figure 2 , 5As shown, when the oil cylinder 11 pushes the movable vertical plate B to move to the right, the code block group 6 is stopped by the code block push rod 1 and remains motionless. When the gap between the vertical plate 2 and the positioning plate 4 accommodates the code block A1, the code block A1 vertically falls into the gap between the vertical plate 2 and the positioning plate 4 and falls on the lower code block frame 3. The pushing stroke of the oil cylinder 11 is the tensioning stroke of the mechanism to resist external force, and it is also the positioning length generated by the thickness of the code block A1. At this time, the oil cylinder 11 does not work when the pressure is relieved, the fixed vertical plate A is fixed, and when the movable vertical plate B is subjected to the left rebound pressure, due to the positioning of the code block A1, the movable vertical plate B cannot return to its original position. The code block straightening rod 7 helps the code block A1 so that it will not fall when it falls.

[0017] like Figure 3 , 6 As shown, if further tensioning is required, the oil cylinder 11 pushes the movable vertical plate B to continue to the right, and A2~A6 of the code block group 6 fall vertically into the gap between the vertical plate 2 and the positioning plate 4 in sequence, the gap is larger, and the positioning distance is longer. When the oil cylinder 11 is depressurized and there is no hydraulic thrust, the movable vertical plate B is subjected to a rebound force to the left, and the code block group 6 keeps the movable vertical plate B immovable, and the overall mechanism completes the automatic mechanical locking and fixing function.

Claims

1. A hydraulic telescopic tail mechanical automatic locking and fixing mechanism, characterized in that: The utility model comprises a block push rod (1), a vertical plate (2), a lower block frame (3), a positioning plate (4), an upper block frame (5), a block group (6), a block straightening rod (7), a spring (8), a flat washer (9), a double locking nut (10), a cylinder (11), a fixed vertical plate A, and a movable vertical plate B; the block push rod (1), the vertical plate (2), the lower block frame (3), and the left end of the cylinder (11) are fixed on the fixed vertical plate A; the block straightening rod (7), the spring (8), the flat washer (9), and the double locking nut (10) are assembled on the block push rod (1) In the through hole at the upper right part, the block straightening rod (7) is loosely fitted in the through hole on the block push rod (1) and can freely pass through. The spring (8), the flat washer (9) and the double locking nut (10) are sequentially sleeved on the block push rod (1). The double locking nut (10) is locked and positioned. The spring (8) is appropriately compressed between the block push rod (1) and the flat washer (9) to generate a preload elastic force. The positioning plate (4), the upper block frame (5) and the left end of the oil cylinder (11) are fixed on the movable vertical plate B. The block group (6) is arranged on the upper block frame (5) in order of thickness.

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