Protection mechanism of reversed loader

Abstract

The utility model provides a reversed loader protection structure which comprises a ladder arranged above a reversed loader, and the ladder is located on the reversed loader between a front conveyor and a rear conveyor. The inner side of the reversed loader is provided with one side of the conveyor; a front protection plate driven by a driving mechanism to stretch out and draw back is arranged above the reversed loader and on one side of the inner side of the reversed loader and located between the front side of the ladder position and the conveyor in front, and a rear protection plate driven by the driving mechanism to stretch out and draw back is arranged between the rear side of the ladder position and the conveyor behind the ladder position. According to the protective device, when the front conveyor or the rear conveyor or the reversed loader moves, the front protective plate and the rear protective plate can be driven by respective driving mechanisms to stretch out and draw back, so that the reversed loader between the front conveyor and the rear conveyor is always in a protective state.

Description

Technical Field

[0001] The utility model belongs to the field of coal mining, and particularly relates to a transfer machine protection mechanism. Background Art

[0002] For the transfer machine in the fully-mechanized caving face underground, during the forward or backward movement of the front and rear conveyors relative to the transfer machine, an unprotected area without side plates is formed in the inner area of the transfer machine between the front and rear conveyors, posing a risk of personnel straying in. CN202300514U discloses a fully enclosed telescopic safety protection device for a transfer machine, including a fully enclosed sliding plate that can slide back and forth, and its cross-section is in an L shape rotated 180°. Among them, the inner side and the upper part of the transfer machine on the same side as the front and rear conveyors are protected by an inverted L-shaped sliding plate. The protection of the upper part and the inner side of the transfer machine must be opened or closed simultaneously. For occasions where the lengths or positions to be protected on the upper part and the inner side are inconsistent, it cannot well meet the requirements and achieve a complete protection effect. The sliding plate has only two states, closed and open, and cannot adjust the telescopic length according to the change in the relative position between the conveyor and the transfer machine. In addition, the part of the transfer machine in front of the front and rear conveyors also includes a man ladder, and the position of the man ladder cannot be covered by protection, that is, the man ladder divides the area to be protected into two sections. The structure of the comparative document can only be applied to the transfer machine structure without a man ladder in this section. Summary of the Invention

[0003] The utility model provides a protection structure for a transfer machine.

[0004] The purpose of the utility model is achieved in the following way: A protection mechanism for a transfer machine includes a man ladder arranged above the transfer machine, and the man ladder is on the transfer machine between the front and rear conveyors; the inner side of the transfer machine is the side where the conveyor is arranged; on the upper part of the transfer machine and on one side of the inner side of the transfer machine, a front protection plate driven by a driving mechanism to expand and contract is arranged at the position between the front side and the front of the conveyor at the position of the man ladder, and a rear protection plate driven by a driving mechanism to expand and contract is arranged at the position between the rear side and the rear of the conveyor at the position of the man ladder.

[0005] The front protection plate includes a front telescopic top plate arranged above the transfer machine and a vertical front telescopic baffle plate arranged at the upper end of the inner side of the transfer machine; the rear protection plate includes a rear telescopic top plate arranged above the transfer machine and a vertical rear telescopic baffle plate arranged at the upper end of the inner side of the transfer machine; the front telescopic top plate is butted against the front telescopic baffle plate, and the rear telescopic top plate is butted against the rear telescopic baffle plate.

[0006] A vertical fixed baffle is provided inside the transfer machine at the position of the ladder or near the inner side, and the front telescopic baffle is slidably arranged on the front side of the fixed baffle, and the rear telescopic baffle is arranged on the rear side; a first linear driving structure is arranged between the fixed baffle and the front telescopic baffle, and a second linear driving mechanism is arranged between the fixed baffle and the rear telescopic baffle; the upper end of the fixed baffle is fixedly connected to the front fixed top plate on the front side of the ladder and fixedly connected to the rear fixed top plate at the rear side position of the ladder; the front telescopic top plate is slidably arranged on the front side of the front fixed top plate, and the rear telescopic top plate is slidably arranged on the rear side of the rear fixed top plate; a third linear driving mechanism is arranged between the front fixed top plate and the front telescopic top plate, and a fourth linear driving mechanism is arranged between the rear fixed top plate and the rear telescopic top plate.

[0007] A vertical fixed side baffle is provided outside the transfer machine or near the outer side, and the ends of the front fixed top plate and the rear fixed top plate far from the fixed baffle are respectively fixed to the upper end of the fixed side baffle; the outer side and the inner side of the ladder are respectively slidably arranged on the fixed side baffle and the fixed baffle, and a lifting linear driving mechanism is arranged between the outer side of the ladder and the fixed side baffle and between the inner side of the ladder and the fixed baffle respectively.

[0008] The first linear driving mechanism, the second linear driving mechanism, the third linear driving mechanism, the fourth linear driving mechanism and the lifting linear driving mechanism are hydraulic cylinders; the two ends of the first linear driving mechanism, the second linear driving mechanism, the third linear driving mechanism, the fourth linear driving mechanism and the lifting linear driving mechanism are hinged to the connecting parts of themselves.

[0009] Translation guiding mechanisms are respectively arranged between the fixed baffle and the front telescopic baffle, between the fixed baffle and the rear telescopic baffle, between the front fixed top plate and the front telescopic top plate, and between the rear fixed top plate and the rear telescopic top plate.

[0010] Lifting guiding mechanisms are respectively arranged between the positions of the fixed side baffle corresponding to the front end and the rear end of the ladder.

[0011] Compared with the prior art, in the present invention, when the front and rear conveyors or the transfer machine move, causing a change in the relative position between the conveyors and the transfer machine, the front protection plate and the rear protection plate can be driven by their respective driving mechanisms to expand and contract, so that the transfer machine between the front and rear conveyors is always in a protected state. Description of the Drawings

[0012] Figure 1 is a three-dimensional schematic diagram of the present invention (hiding the fixed side baffle).

[0013] Figure 2It is the top view of the utility model.

[0014] Figure 3 It is a schematic diagram of the fixed baffle and the front and rear telescopic baffles.

[0015] Figure 4 It is a schematic diagram of the front telescopic top plate and the front fixed top plate.

[0016] Figure 5 It is a schematic diagram of the escalator lifting part.

[0017] Figure 6 It is a schematic diagram of the positions of the transfer machine and the front and rear conveyors.

[0018] Among them, 1 is the transfer machine, 2 is the conveyor, 3 is the man ladder, 4 is the front telescopic baffle, 5 is the rear telescopic baffle, 6 is the fixed baffle, 7 is the front telescopic top plate, 8 is the rear telescopic top plate, 9 is the front fixed top plate, 10 is the rear fixed top plate, 11 is the first linear drive mechanism, 12 is the second linear drive mechanism, 13 is the third linear drive mechanism, 14 is the fourth linear drive mechanism, 15 is the lifting linear drive mechanism, 16 is the fixed side baffle, 17 is the translation guiding mechanism, and 18 is the lifting guiding mechanism. Specific implementation manners

[0019] In the present utility model, unless otherwise clearly specified and defined, the technical terms used in this application shall have the ordinary meanings understood by those skilled in the art of the present utility model. Terms such as "connected", "connected to", "fixed", "arranged", etc. should be understood in a broad sense, which can be a fixed connection, a detachable connection, or integrated; it can be directly connected or indirectly connected through an intermediate medium; it can be a mechanical connection or an electrical connection. Unless otherwise clearly specified and defined, the first feature being "on" or "under" the second feature can be that the first and second features are in direct contact or in indirect contact through an intermediate medium. Moreover, the first feature being "above" or "over" or "on top of" the second feature, etc. can mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under" or "beneath" or "underneath" the second feature can be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature. Relative terms such as first, second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Terms used in the description such as "center", "lateral", "longitudinal", "length", "width", "thickness", "height", "front", "rear", "left", "right", "up", "down", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation.

[0020] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments. As Figure 1-6As shown in the figure, a protection mechanism for a transfer machine includes a man ladder 3 arranged above the transfer machine 1, and the man ladder 3 is located on the transfer machine 1 between the front and rear conveyors 2; the inner side of the transfer machine 1 is the side where the conveyor 2 is arranged; above the transfer machine 1 and on one side of the inner side of the transfer machine 1, a front protection plate driven by a driving mechanism to expand and contract is arranged at the position between the front side and the front conveyor 2 of the man ladder 3, and a rear protection plate driven by a driving mechanism to expand and contract is arranged at the position between the rear side and the rear conveyor 2 of the man ladder 3. The front protection mechanism and the rear protection mechanism provide full protection for the space above and inside the position of the transfer machine 1 between the front and rear conveyors 2. When the front and rear conveyors 2 or the transfer machine 1 move, causing a change in the relative position between the conveyor 2 and the transfer machine 1, the front protection plate and the rear protection plate can be driven by their respective driving mechanisms to expand and contract, so that the transfer machine 1 between the front and rear conveyors 2 is always in a protected state. Here, the driving mechanism can drive the front protection plate or the rear protection plate to expand and contract manually or automatically.

[0021] The front protection plate includes a front telescopic top plate 7 arranged above the transfer machine 1 and a vertical front telescopic baffle 4 arranged at the upper end of the inner side of the transfer machine 1; the rear protection plate includes a rear telescopic top plate 8 arranged above the transfer machine 1 and a vertical rear telescopic baffle 5 arranged at the upper end of the inner side of the transfer machine 1; the front telescopic top plate 7 is butted against the front telescopic baffle 4, and the rear telescopic top plate 8 is butted against the rear telescopic baffle 5. The butt joint here can be a fixed connection, that is, the front telescopic baffle 4 and the front telescopic top plate 7 are fixedly connected and move together; at this time, the front telescopic top plate 7 and the front telescopic baffle 4 are driven by the same driving mechanism to move linearly. The butt joint can also be just not a fixed connection, but only a position butt joint, with a certain gap between them, but the gap needs to be small enough not to allow items or people to fall. At this time, the front telescopic top plate 7 and the front telescopic baffle 4 are driven by their respective driving structures to move independently, and the rear telescopic top plate 8 and the rear telescopic baffle 5 are driven by their respective driving structures to move independently.

[0022] A vertical fixed baffle 6 is provided inside or near the upper end of the inner side of the transfer machine 1 located at the position of the ladder 3. The front telescopic baffle 4 is slidably arranged on the front side of the fixed baffle 6, and the rear telescopic baffle 5 is arranged on the rear side; a first linear drive structure is arranged between the fixed baffle 6 and the front telescopic baffle 4, and a second linear drive mechanism 12 is arranged between the fixed baffle 6 and the rear telescopic baffle 5; the upper end of the fixed baffle 6 is fixedly connected to the front fixed top plate 9 on the front side of the ladder 3 and fixedly connected to the rear fixed top plate 10 at the rear side position of the ladder 3; the front telescopic top plate 7 is slidably arranged on the front side of the front fixed top plate 9, and the rear telescopic top plate 8 is slidably arranged on the rear side of the rear fixed top plate 10; a third linear drive mechanism 13 is arranged between the front fixed top plate 9 and the front telescopic top plate 7, and a fourth linear drive mechanism 14 is arranged between the rear fixed top plate 10 and the rear telescopic top plate 8. The front telescopic top plate 7 and the front telescopic baffle 4 are separately arranged, and the rear telescopic top plate 8 and the rear telescopic baffle 5 are separately arranged, and are respectively controlled by different drive structures to extend or contract, which can better adapt to the working conditions of the transfer machine 1 and play a better protective effect. Specifically, between the fixed baffle 6 and the front fixed top plate 9, and between the rear fixed top plate 10 and the fixed baffle 6, they can be connected by bolts. The upper end of the fixed baffle 6 is respectively provided with bends that are substantially horizontal at the front and rear sides of the ladder 3, and through holes or threaded holes are provided on the bends; the edges of the front fixed top plate 9 and the rear fixed top plate 10 corresponding to the bends are placed on the bends and are connected by bolts. Of course, other fixing methods can also be used, such as welding, etc.

[0023] A vertical fixed side baffle 16 is provided on the outer side or the upper end near the outer side of the transfer machine 1. One ends of the front fixed top plate 9 and the rear fixed top plate 10 away from the fixed baffle 6 are respectively fixed to the upper end of the fixed side baffle 16. The outer side and the inner side of the ladder 3 are respectively slidably arranged on the fixed side baffle 16 and the fixed baffle 6, and lifting linear drive mechanisms 15 are respectively arranged between the outer side of the ladder 3 and the fixed side baffle 16 and between the inner side of the ladder 3 and the fixed baffle 6. The fixed side baffle 16 is an existing structure and is arranged on the outer side of the transfer machine 1. The fixed side baffle 16, the front telescopic top plate 7, and the front telescopic baffle 4 provide full protection for the part between the ladder 3 of the transfer machine 1 and the front conveyor 2. The fixed side baffle 16, the rear telescopic top plate 8, and the rear telescopic baffle 5 provide full protection for the part between the ladder 3 of the transfer machine 1 and the rear conveyor 2. The fixing method between the fixed side baffle 16 and the front fixed top plate 9 and the rear fixed top plate 10 can refer to the fixing method between the fixed baffle 6 and the front fixed top plate 9 and the rear fixed top plate 10, such as bolt connection, welding connection, etc. In the present utility model, the ladder 3 can be arranged to be liftable above the transfer machine 1 and can be raised or lowered as needed. Of course, the ladder 3 can also be arranged on the fixed side baffle 16 and the fixed side plate in a fixed manner.

[0024] The first linear drive mechanism 11, the second linear drive mechanism 12, the third linear drive mechanism 13, the fourth linear drive mechanism 14, and the lifting linear drive mechanism 15 are hydraulic cylinders; both ends of the first linear drive mechanism 11, the second linear drive mechanism 12, the third linear drive mechanism 13, the fourth linear drive mechanism 14, and the lifting linear drive mechanism 15 are hinged to their connecting parts.

[0025] Translation guiding mechanisms 17 are respectively arranged between the fixed baffle 6 and the front telescopic baffle 4, between the fixed baffle 6 and the rear telescopic baffle 5, between the front fixed top plate 9 and the front telescopic top plate 7, and between the rear fixed top plate 10 and the rear telescopic top plate 8. The structure of the translation guiding mechanism 17 can be various. For example, sliding grooves are respectively arranged at the inner and outer positions of the front fixed top plate 9, and the inner and outer sides of the front telescopic top plate 7 are respectively arranged in the corresponding sliding grooves; or the guiding is realized through a guide rail-slider mechanism. The structures of the translation guiding mechanisms 17 at the remaining positions will not be described in detail. The inner and outer here are in the same direction as the inner and outer of the transfer machine 1.

[0026] Lifting guiding mechanisms 18 are respectively arranged between the positions of the fixed side baffle 16 corresponding to the front end and the rear end of the personnel ladder 3. The lifting guiding mechanism 18 can be a slider and a guide rail, or a chute and a guide rail, etc., which are existing guiding mechanisms. For example, lifting chutes are arranged at the positions of the fixed side baffle 16 corresponding to the front end and the rear end of the personnel ladder 3, and the front end and the rear end on the outer side of the personnel ladder 3 are respectively arranged in the corresponding lifting chutes.

[0027] During specific implementation: there are several cases for the relative position relationship between the transfer machine 1 and the front and rear conveyors 2. The front and rear conveyors 2 can move forward relative to the transfer machine 1 once, twice or multiple times; the transfer machine 1 will also move forward. After each movement, the positions of the transfer machine 1 and the front and rear conveyors 2 will change. After the front conveyor 2 moves forward, the front telescopic baffle 4 and the front telescopic top plate 7 extend to close the inner side and the upper gap of the transfer machine 1 left due to the forward movement of the conveyor 2. When the transfer machine 1 needs to move forward, the front telescopic baffle 4 and the front telescopic top plate 7 retract. Then the transfer machine 1 moves forward a predetermined distance, and then the rear telescopic top plate 8 and the rear telescopic baffle 5 extend to close the space left between the transfer machine 1 and the rear conveyor 2. When the rear conveyor 2 needs to move forward, first retract the rear telescopic baffle 5 and the rear telescopic top plate 8, and then the rear conveyor 2 moves forward. Among them, the first linear drive mechanism 11, the second linear drive mechanism 12, the third linear drive mechanism 13, and the fourth linear drive mechanism 14 are used as hydraulic cylinders, and can control the elongation and shortening by manually controlling the corresponding hydraulic valves or solenoid valves. Of course, all the linear drive mechanisms in this application, as well as the moving mechanisms of the transfer machine and the conveyor, can be electrically connected to the controller to achieve automatic control through the controller.

[0028] The technical features of the above-described embodiments can be combined arbitrarily. As long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification. Without departing from the overall concept of the present invention, according to the technical solution of the present invention and equivalent replacement or change, and several changes and improvements made, it should also be regarded as the protection scope of the present invention.

Claims

1. A transfer machine protection mechanism, including a man ladder arranged above the transfer machine, and the man ladder is on the transfer machine between the front and rear conveyors; characterized in that: The inner side of the transfer machine is the side where the conveyor is provided; above the transfer machine and on one side of the inner side of the transfer machine, a front protection plate driven by a driving mechanism to expand and contract is arranged at the position between the front side and the front of the conveyor in front of the position of the man ladder, and a rear protection plate driven by a driving mechanism to expand and contract is arranged at the position between the rear side and the rear of the conveyor behind the position of the man ladder.

2. The protective mechanism of a transfer machine according to claim 1, wherein: The front protection plate includes a front telescopic top plate arranged above the transfer machine and a vertical front telescopic baffle plate arranged at the upper end of the inner side of the transfer machine; the rear protection plate includes a rear telescopic top plate arranged above the transfer machine and a vertical rear telescopic baffle plate arranged at the upper end of the inner side of the transfer machine; the front telescopic top plate is butted against the front telescopic baffle plate, and the rear telescopic top plate is butted against the rear telescopic baffle plate.

3. The protective mechanism of a transfer machine according to claim 2, wherein: A vertical fixed baffle plate is arranged at the inner side or the upper end near the inner side of the transfer machine at the position of the man ladder. The front telescopic baffle plate is slidably arranged on the front side of the fixed baffle plate, and the rear telescopic baffle plate is arranged on the rear side of the fixed baffle plate. A first linear driving mechanism is arranged between the fixed baffle plate and the front telescopic baffle plate, and a second linear driving mechanism is arranged between the fixed baffle plate and the rear telescopic baffle plate. The upper end of the fixed baffle plate is fixedly connected with a front fixed top plate on the front side of the man ladder and fixedly connected with a rear fixed top plate at the rear side position of the man ladder. The front telescopic top plate is slidably arranged on the front side of the front fixed top plate, and the rear telescopic top plate is slidably arranged on the rear side of the rear fixed top plate. A third linear driving mechanism is arranged between the front fixed top plate and the front telescopic top plate, and a fourth linear driving mechanism is arranged between the rear fixed top plate and the rear telescopic top plate.

4. The protective mechanism of a transfer machine according to claim 3, characterized in that: A vertical fixed side baffle plate is arranged at the outer side or the upper end near the outer side of the transfer machine. The ends of the front fixed top plate and the rear fixed top plate far from the fixed baffle plate are respectively fixed to the upper end of the fixed side baffle plate. The outer side and the inner side of the man ladder are respectively slidably arranged on the fixed side baffle plate and the fixed baffle plate, and a lifting linear driving mechanism is arranged between the outer side of the man ladder and the fixed side baffle plate and between the inner side of the man ladder and the fixed baffle plate respectively.

5. The transfer machine protection mechanism according to claim 4, characterized in that: The first linear driving mechanism, the second linear driving mechanism, the third linear driving mechanism, the fourth linear driving mechanism and the lifting linear driving mechanism are hydraulic cylinders; the two ends of the first linear driving mechanism, the second linear driving mechanism, the third linear driving mechanism, the fourth linear driving mechanism and the lifting linear driving mechanism are hinged to the connecting parts of themselves.

6. The protective mechanism of a transfer machine according to claim 3, characterized in that: A translation guiding mechanism is arranged between the fixed baffle plate and the front telescopic baffle plate, between the fixed baffle plate and the rear telescopic baffle plate, between the front fixed top plate and the front telescopic top plate, and between the rear fixed top plate and the rear telescopic top plate respectively.

7. The protective mechanism of a transfer machine according to claim 4, wherein: A lifting guiding mechanism is arranged between the positions of the fixed side baffle plate corresponding to the front end and the rear end of the man ladder respectively.

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