An in-tank double-block energy-absorbing forklift holding device and method

Abstract

The present invention discloses a double-block energy-absorbing forklift device inside a tank, which comprises a base, a power transmission mechanism, a buffer mechanism, and a forklift mechanism; the buffer mechanism includes a buffer pier, the forklift mechanism includes a forklift stop, the buffer pier is rotatably arranged on the base, the forklift stop can be driven by the power transmission mechanism to rotate and move laterally, and the extreme positions of its lateral movement include a buffer position and a clamping position. When in the buffer position, the forklift stop is located at the rear side of the buffer pier. A forklift mechanism turning groove is circumferentially formed on the base at the buffer position, and a laterally extending limiting notch is communicated with the upper end of the forklift mechanism turning groove. The power transmission mechanism can drive the forklift mechanism to turn along the forklift mechanism turning groove at the buffer position so as to drive the buffer pier to turn, and the power transmission mechanism can also drive the forklift mechanism to perform lateral translation between the buffer position and the clamping position at the limiting notch.

Description

Technical Field

[0001] The present invention belongs to the technical field of mine transportation equipment, and particularly relates to a car clamping device and method, and more particularly to a car clamping device and method suitable for hoisting mine cars by a cage. Background Art

[0002] Currently, in mine shafts, cage hoisting of mine cars is generally adopted. During the hoisting or loading process, in the past, rigid fixed-point car blocking was used inside the cage. Due to the frequency impact of the incoming cars, the rigid car blocking device is often damaged. There is a gap between the car blocking device and the blocked car, and the car blocking safety is poor. More prominently, the rigid blocking is basically manually operated, which not only has a large labor intensity for personnel but also high danger. Summary of the Invention

[0003] Aiming at the deficiencies of the prior art, the present invention provides a double-blocking energy-absorbing car clamping device and method inside the cage, which are mainly used for parking, positioning, and locking of mine cars inside the cage to prevent the longitudinal movement of the mine cars during the hoisting process, meeting the requirements of high safety and reliability, flexible operation, simple use, and low labor intensity, and realizing unmanned integrated cage hoisting.

[0004] To achieve the above object, the present invention is realized through the following technical solutions:

[0005] A double-blocking energy-absorbing car clamping device inside the cage includes a base, a power transmission mechanism, a buffer mechanism, and a car clamping mechanism; the buffer mechanism includes a buffer pier, the car clamping mechanism includes a car clamping block, the buffer pier is rotatably arranged on the base, the car clamping block can be driven by the power transmission mechanism to rotate and move horizontally, and the extreme positions of its horizontal movement include a buffer position and a clamping position. In the buffer position, the car clamping block is located behind the buffer pier. On the base in the buffer position, a car clamping mechanism flipping groove is circumferentially opened, and a laterally extending limiting notch is communicated with the upper side end of the car clamping mechanism flipping groove. The power transmission mechanism can drive the car clamping mechanism to flip along the car clamping mechanism flipping groove in the buffer position to drive the buffer pier to flip, and the power transmission mechanism can also drive the car clamping mechanism to perform horizontal translation between the buffer position and the clamping position in the limiting notch.

[0006] Further, the power transmission mechanism includes a lead screw and a sleeve, the lead screw and the sleeve are mutually matched through matching threads, the car clamping mechanism further includes a car clamping block base, the car clamping block is fixedly connected with the sleeve through the car clamping block base, and the car clamping block and the car clamping block base are arranged outside the buffer mechanism.

[0007] Implementation method of double-block energy-absorbing vehicle-holding device inside the tank. In the initial state, both the vehicle-holding block and the buffer pier are flipped to the position awaiting operation, and the vehicle-holding block is behind the buffer pier. Subsequently, the power transmission mechanism drives the lead screw to rotate, driving the sleeve to rotate and move forward horizontally, thereby driving the vehicle-holding block to flip along the flipping groove of the vehicle-holding mechanism to the working position. At the same time, the vehicle-holding block drives the buffer pier to flip to the working position. After that, the buffer pier remains in the working position to buffer the wheels, while the vehicle-holding mechanism continues to move forward horizontally along the limit slot opening, thus pushing the mine car wheel forward.

[0008] Working method of the double-block energy-absorbing vehicle-holding device inside the cage of the tank. The vehicle-holding devices are symmetrically installed on the side of the cage where the mine car enters the cage and the side where the mine car exits the cage. The working method inside the cage includes:

[0009] In the initial state, the mine car has not entered the cage, and both the vehicle-holding block and the buffer pier are in the position awaiting operation.

[0010] Before the mine car enters the cage, the vehicle-holding block of the vehicle-holding device on the side where the mine car exits the cage drives the buffer pier to flip to the working position, and the vehicle-holding device on the side where the mine car enters the cage remains in the position awaiting operation.

[0011] After the mine car enters the cage, the vehicle-holding block of the vehicle-holding device on the side where the mine car enters the cage drives the buffer pier to flip to the working position. After the front wheel of the mine car hits the buffer pier on the side where the mine car exits the cage, it buffers and stops between the two vehicle-holding devices at the front and rear of the mine car. The vehicle-holding blocks on the side where the mine car enters the cage and the side where the mine car exits the cage both move horizontally towards each other. The vehicle-holding block on the side where the mine car exits the cage searches for and pushes the front wheel, and the vehicle-holding block on the side where the mine car enters the cage searches for and pushes the rear wheel, and finally pushes the mine car to the center position inside the cage and holds it tightly.

[0012] When the mine car is about to exit the cage, the vehicle-holding block of the vehicle-holding device on the side where the mine car exits the cage drives the buffer pier to flip to the position awaiting operation, and the mine car exits the cage smoothly.

[0013] Advantages of the present invention:

[0014] The present invention provides a double-block energy-absorbing vehicle-holding device and method inside the tank, which avoids the safety risks of manually blocking and positioning the vehicle during the transportation of the mine car in the cage. The structure of the present invention is simple and the failure rate is low. The main components of the vehicle-holding device are all arranged on the bottom plate inside the cage, which is convenient for installation and maintenance. It can realize unattended vehicle locking inside the tank during the loading and unloading operation of the mine car and the hoisting process of the cage, ensuring the safety of the mine cage transportation. Description of the drawings

[0015] Figure 1 It is the layout diagram of the vehicle-holding device inside the cage of the present invention in the working position;

[0016] Figure 2 It is the layout diagram of the vehicle-holding device inside the cage of the present invention in the position awaiting operation;

[0017] Wherein: 1. Base; 2. Power and control mechanism; 3. Buffer mechanism; 4. Forklift mechanism; 5. Transmission and flipping mechanism; 6. Mine car wheel; 6-1. Front wheel; 6-2. Rear wheel; 7. Rail. Detailed implementation mode

[0018] The following further describes the preferred mechanisms and methods for realizing the movement of the present invention in conjunction with the accompanying drawings and specific implementation modes.

[0019] This embodiment provides a double-block energy-absorbing forklift device in a tank as Figure 1-2 shown, and this device includes a base 1, a power and control mechanism 2, a buffer mechanism 3, a forklift mechanism 4, and a transmission and flipping mechanism 5.

[0020] The base 1 is fixed on the outside of the I-shaped rail 7 and installed along the rail 7, and the power and control mechanism 2, the transmission and flipping mechanism 5, the buffer mechanism 3, and the forklift mechanism 4 are all arranged on the base 1.

[0021] In this embodiment, inside the cage, this forklift device is symmetrically arranged on the front and rear sides of the two rails 7 respectively, that is, this forklift device is symmetrically installed on the outside of the two rails 7 on the side of entering the cage and the side of exiting the cage.

[0022] For the convenience of description, as Figure 1-2 shown, it is stipulated that the side of the power and control mechanism 2 of this double-block energy-absorbing forklift device in the tank is the front side of this device, and the extreme position where the forklift mechanism 4 moves horizontally relative to the opposite side of the front side is the rear side of this device.

[0023] It is stipulated that when the forklift mechanism 4 drives the buffer mechanism 3 to stand vertically on the rail 7, it is the working position, and when the forklift mechanism 4 drives the buffer mechanism 3 to rotate 90° to the horizontal state and be located outside the rail 7, it is the position waiting for work.

[0024] It is stipulated that when the forklift mechanism 4 and the buffer mechanism 3 are in the working position, when the forklift mechanism 4 is located behind the buffer mechanism 3, it is the buffer position of the forklift mechanism 4, and when the forklift mechanism 4 pushes the mine car wheel 6 to the designated position in the cage, it is the holding position of the forklift mechanism 4, as Figure 1 shown.

[0025] The power and control mechanism 2 is generally a motor and a controller. The motor provides power, and the controller plays a role in controlling the horizontal movement of the forklift mechanism 4 and pushing the mine car wheel 6 to move.

[0026] The buffer mechanism 3 includes a buffer pier 3-1 which is rotatably connected to the base 1. In order to enable the forklift mechanism 4 to more effectively drive the buffer pier 3-1 to flip back from the working position (i.e., the vertical state) to the position waiting for work (i.e., the horizontal state), a movable connection structure can be provided between the buffer pier 3-1 and the forklift mechanism 4, so that the buffer pier 3-1 can flip between the upper side and the outer side of the track 7 along with the forklift mechanism 4. When the buffer mechanism 3 flips to the upper side of the track 7, buffering for the mine car wheel 6 is realized, and when the buffer mechanism 3 flips to the outer side of the track 7, it does not affect the movement of the mine car wheel 6 on the track 7. The movable connection structure between the buffer pier 3-1 and the forklift mechanism 4 can adopt various connection forms in the prior art. For example, a transverse strip-shaped protrusion is provided on the forklift mechanism 4, and a transverse strip-shaped groove is provided at the corresponding position on the buffer pier 3-1. When the forklift mechanism 4 moves close to the buffer pier 3-1, the transverse strip-shaped protrusion gradually extends into the transverse strip-shaped groove, and through the cooperation of the transverse strip-shaped protrusion and the transverse strip-shaped groove, the rotational linkage of the forklift mechanism 4 and the buffer mechanism 3 is realized.

[0027] An arc surface matching the mine car wheel 6 is provided on the impact buffer surface of the buffer pier 3-1. The buffer elastic component 3-2 can be arranged on the impact buffer surface and / or the back buffer surface of the buffer pier 3-1 of the buffer mechanism 3 (in this embodiment, only the example of arranging the buffer elastic component 3-2 on the back buffer surface is described) to bear the impact force impacted by the mine car wheel 6 and play a buffering role. The buffer elastic component 3-2 can be a disc spring 3-3, a damping oil cylinder 3-4, or a spring 3-5; the buffer elastic component 3-2 can be fixed in the base 1 or can flip up and down synchronously by 90 degrees along with the buffer pier 3-1.

[0028] The movable connection mode between the buffer mechanism 3 and the base 1 can adopt existing connection forms. For example, a rotating shaft is provided on the base 1, and the buffer mechanism 3 realizes up and down flipping through this rotating shaft.

[0029] The buffer pier 3-1 can be an integral structure or a split structure, that is, the buffer surface at the upper end of the buffer pier 3-1 and the flipping part connected to the base 1 at the lower end can be an integral or a split. If a split structure is adopted, the connection mode between the buffer surface at the upper end and the flipping part at the lower end can adopt the commonly used connection modes in the prior art, such as connecting them by screws.

[0030] In addition, a buffer pier limiting structure is provided on the base 1. After the forklift mechanism 4 drives the buffer pier 3-1 to flip to the working position, this limiting structure can hold the buffer pier 3-1 to keep it in the vertical state. The limiting structure can adopt various forms, as long as it can hold the buffer pier 3-1 to keep it in the vertical state. For example, the form of a movable limiting structure can be adopted, and a telescopic stop rod is provided on the base 1, which is controlled by a controller. When the buffer pier 3-1 flips to the vertical state, the controller issues an instruction, and the stop rod extends out to hold the buffer pier 3-1 from falling down;

[0031] The forklift mechanism 4, and the forklift stop 4-1 is controlled by the power and control mechanism 2. When flipping is required, the forklift stop 4-1 can drive the buffer pier 3-1 to flip back and forth between the waiting working position and the working position along with the forklift stop 4-1. When flipping is not required, the forklift stop 4-1 can release the buffer pier 3-1 to move back and forth in the horizontal direction.

[0032] The transmission and flipping mechanism 5 connects the power and control mechanism 2 and the forklift mechanism 4, including a horizontal transmission structure and a flipping limit structure, and transmits the power and action instructions of the power and control mechanism 2 to the forklift mechanism 4 to achieve horizontal movement back and forth and up and down flipping.

[0033] A trapezoidal thread matching the inside of the driving inner sleeve is provided on the lead screw 5-5. The motor drives the lead screw 5-5 to rotate, and the driving inner sleeve is driven by the lead screw 5-5 to rotate and at the same time move horizontally back and forth on the base 1 along the lead screw 5-5.

[0034] Rotary linkage structures that match each other are respectively provided on the driving inner sleeve and the driving outer sleeve 5-3. Its function is that the motor drives the lead screw 5-5 to rotate. Due to friction, the lead screw 5-5 drives the driving inner sleeve to rotate. The driving inner sleeve drives the driving outer sleeve 5-3 to rotate through the rotary linkage structure, and the driving outer sleeve 5-3 drives the forklift stop 4-1 to rotate.

[0035] The rotary linkage structure can be in the form of a pin shaft. That is, pin holes 5-4 are respectively provided on the driving inner sleeve and the driving outer sleeve 5-3. The pin shaft passes through these 2 pin holes 5-4 in sequence and can move in the holes. When the driving inner sleeve rotates, the driving outer sleeve 5-3 can be driven to rotate through the pin shaft. Other rotary linkage structures will not be listed one by one here.

[0036] Preferably, the flipping curved rail surface 5-2 is designed as a smooth arc-shaped curved surface, making the flipping process of the forklift mechanism 4 smoother.

[0037] In addition to adopting the above lead screw 5-5 structure for the horizontal transmission structure, transmission methods such as chain 5-6 transmission or wire rope 5-7 transmission can also be adopted, which will not be elaborated here.

[0038] The transmission and flipping mechanism 5 connects the forklift mechanism 4 and the power and control mechanism 2. The forklift mechanism 4 moves horizontally under the control of the power and control mechanism 2 and drives the buffer mechanism 3 to flip between the upper side and the outside of the track 7. When the buffer mechanism 3 flips to the upper side of the track 7, buffering of the mine car wheel 6 is realized. When the buffer mechanism 3 flips to the outside of the track 7, it does not affect the movement of the mine car wheel 6 on the track 7; after the forklift mechanism 4 drives the buffer mechanism 3 to flip to the upper side of the track 7 and buffer the mine car wheel 6 to stop, the forklift mechanism 4 moves horizontally to push the mine car wheel 6 to the designated position, realizing the function of restricting the wheel.

[0039] The working process of the double-block energy-absorbing forklift device inside the tank is as follows:

[0040] In the initial state, both the forklift block 4-1 and the buffer pier 3-1 are flipped to the position waiting for work. The sliding wheel 4-2 at the top of the forklift block 4-1 is located at the rear side of the buffer pier 3-1. Subsequently, the power and control mechanism 2 provides power to drive the lead screw 5-5 to rotate, driving the driving inner sleeve and the driving outer sleeve to rotate and move forward horizontally. Thereby, the forklift block 4-1 is driven to flip along the flipping curved rail surface 5-2 to the working position under the limiting action of its flipping groove. At the same time, the forklift block 4-1 drives the buffer pier 3-1 to rotate along its flipping groove to the working position. After that, the buffer pier 3-1 moves forward horizontally to the clamped position and then stops translating and cannot rotate, while the forklift block 4-1 continues to move forward horizontally due to the limiting slot 5-1. At this time, the forklift block 4-1 can push the mine car wheel 6 forward.

[0041] If it is necessary to return to the position waiting for work, the double-block energy-absorbing forklift device inside the tank can move in the reverse direction.

[0042] As Figure 1 shown, the working process of the forklift device in this embodiment inside the cage is as follows:

[0043] 1. In the initial state, the mine car has not entered the cage, and both the forklift block 4-1 and the buffer pier 3-1 are in the position waiting for work.

[0044] 2. Before the mine car enters the cage, the power and control mechanism 2 of the forklift device on both sides of the track 7 on the side of the cage exit drives the forklift block 4-1 to drive the buffer pier 3-1 to flip to the working position, while the forklift block 4-1 of the forklift device on the side of the cage entrance drives the buffer pier 3-1 to remain in the position waiting for work.

[0045] 3. After the mine car enters the cage, the forklift block 4-1 of the forklift device on the side of the cage entrance drives the buffer pier 3-1 to flip to the working position. After the front wheel 6-1 of the mine car hits the buffer pier 3-1 on the side of the cage exit, it buffers and stops between the two forklift devices in the front and rear of the mine car. The forklift blocks 4-1 on both the side of the cage entrance and the side of the cage exit move horizontally, respectively restricting the front wheel 6-1 and the rear wheel 6-2 of the mine car from the front and rear sides of the mine car. Controlled by the power and control mechanism 2, the forklift block 4-1 on the side of the cage exit searches for and pushes the front wheel 6-1, and the forklift block 4-1 on the side of the cage entrance searches for and pushes the rear wheel 6-2, realizing pushing the mine car to the central position inside the cage and clamping it tightly, ensuring that the vehicle inside the cage does not move around, that is, realizing double-block forklifting.

[0046] 4. When the mine car wants to exit the cage, the power and control mechanism 2 of the forklift device on the side of the cage exit drives the forklift block 4-1 to drive the buffer pier 3-1 to flip to the position waiting for work, and the mine car then smoothly exits the cage.

[0047] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. However, any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. Working method of the in-cage double-block energy-absorbing forklift device in the cage, Characterized in that, The in-cage double-block energy-absorbing forklift devices are symmetrically installed on the cage-in side and the cage-out side in the cage. The device includes a base, a power transmission mechanism, a buffer mechanism, and a forklift mechanism; the buffer mechanism includes a buffer pier, the forklift mechanism includes a forklift stop, the buffer pier is rotatably arranged on the base, and an active connection structure is arranged between the buffer pier and the forklift mechanism. The forklift stop can rotate and move horizontally under the drive of the power transmission mechanism. The extreme positions of its horizontal movement include a buffer position and a clamping position. In the buffer position, the forklift stop is located behind the buffer pier. On the base in the buffer position, a forklift mechanism turning groove is circumferentially opened. The upper end of the forklift mechanism turning groove is communicated with a horizontally extending limit notch. The power transmission mechanism can drive the forklift mechanism to turn along the forklift mechanism turning groove in the buffer position to drive the buffer pier to turn. The power transmission mechanism can also drive the forklift mechanism to perform horizontal translation between the buffer position and the clamping position in the limit notch; the power transmission mechanism includes a lead screw and a sleeve, the lead screw and the sleeve are mutually matched through matching threads, the forklift mechanism further includes a forklift stop base, the forklift stop is fixedly connected with the sleeve through the forklift stop base, and the forklift stop and the forklift stop base are arranged outside the buffer mechanism; The in-cage working method includes: In the initial state, the mine car has not entered the cage, and both the forklift stop and the buffer pier are in the position waiting for work; When the mine car is about to enter the cage, the forklift stop of the forklift device on the cage-out side drives the buffer pier to turn to the working position, and the forklift device on the cage-in side is still in the position waiting for work; When the mine car enters the cage, the forklift stop of the forklift device on the cage-in side drives the buffer pier to turn to the working position. After the front wheel of the mine car hits the buffer pier on the cage-out side, it buffers and stops between the two forklift devices at the front and rear of the mine car. The forklift stops on the cage-in side and the cage-out side both move horizontally towards each other. The forklift stop on the cage-out side searches for and pushes the front wheel, and the forklift stop on the cage-in side searches for and pushes the rear wheel, and finally pushes the mine car to the central position in the cage and clamps it; When the mine car is about to leave the cage, the forklift stop of the forklift device on the cage-out side drives the buffer pier to turn to the position waiting for work, and the mine car smoothly leaves the cage.

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