阅读说明：本技术 一种矿山机械支撑臂 (Mine mechanical support arm ) 是由 徐庆辉 杨俊宇 胡学友 于 2020-12-21 设计创作，主要内容包括：本发明公开了一种矿山机械支撑臂,包括支撑横杆和安装块,安装块和支撑横杆活动连接,安装块一侧安装有支撑臂,支撑臂为中空结构,支撑臂内部安装有滑轨,滑轨的表面安装有延伸收纳箱,滑轨的一侧为斜坡形,本发明的一种矿山机械支撑臂,通过设有的延伸收纳箱能够对矿石进行收集转移,提高工作效率,在转移矿石的过程中,打开第三转动电机开关,从而使连接绳进行放出,通过设有的链条和第一转动电机能够使安装块在支撑横杆的表面进行移动,改变其位置,通过设有的第二转动电机和第一推杆电机能够使支撑臂进行转移,通过设有的安装板和液压缸能够在延伸收纳箱进行卸矿时对其进行支撑,避免矿石连续掉落会对延伸收纳箱造成损坏。(The invention discloses a mining machinery support arm, which comprises a support cross rod and an installation block, wherein the installation block is movably connected with the support cross rod, one side of the installation block is provided with a support arm, the support arm is of a hollow structure, a slide rail is arranged in the support arm, the surface of the slide rail is provided with an extension containing box, one side of the slide rail is in a slope shape, the mining machinery support arm can collect and transfer ores through the extension containing box, the working efficiency is improved, in the process of transferring the ores, a third rotating motor switch is opened, so that a connecting rope is released, the installation block can move on the surface of the support cross rod through a chain and a first rotating motor, the position of the installation block is changed, the support arm can be transferred through a second rotating motor and a first push rod motor, and the installation block and a hydraulic cylinder can support the extension containing box during ore unloading, avoid the ore to drop in succession and can cause the damage to extending the containing box.)

1. The utility model provides a mining machinery support arm, is including supporting horizontal pole and installation piece, installation piece and support horizontal pole swing joint, the support arm is installed to installation piece one side, a serial communication port, the support arm is hollow structure, support arm internally mounted has the slide rail, the surface mounting of slide rail has the extension containing box, one side of slide rail is slope shape, extend containing box at slide rail surface sliding connection, just the bottom on the slope of slide rail is equipped with the limiting plate, the limiting plate that extends containing box through being equipped with can not follow the slide rail surface and drop.

2. The mining machine support arm of claim 1, wherein: the novel storage box is characterized in that a second push rod motor is installed on one side of the inner wall of the extension storage box, a push plate is installed on the surface of the second push rod motor, a pressing groove is formed in the front face of the extension storage box, the size and the size of the pressing groove are the same as those of the push plate, and a feeding groove is installed at the top of the extension storage box.

3. The mining machine support arm of claim 1, wherein: the utility model discloses a take-up post, including support arm inner wall, take-up post, the one side-mounting of support arm inner wall is received the line post, the inside of receiving the line post is cavity, the surface mounting who receives the line post has the connection rope, the one end of connecting the rope links to each other with one side of extending the containing box, the third rotation motor is installed to one side of slide rail, the third rotates the motor and is in the bottom of receiving the line post, the other end of connecting the rope passes the surface and the third rotation motor axis of rotation of receiving the line post and links.

4. The mining machine support arm of claim 1, wherein: the utility model discloses a bag extension device, including extension containing box, fly leaf, surface mounting, bag extension bag, third push rod motor, the fly leaf is installed to one side of extending the containing box, the bottom of fly leaf and the bottom of extending the containing box opposite side are rotated and are connected, the surface mounting of fly leaf has the bag one end of extending all around, one side surface mounting of extending the containing box has the bag other end of extending all around, the third push rod motor is installed to one side of extending the top of containing box, the push rod of third push rod motor and.

5. The mining machine support arm of claim 1, wherein: the surface mounting who supports the horizontal pole has the chain, the gear is installed to one side of installation piece, first rotation motor is installed to the bottom of installation piece, the dwang surface mounting of first rotation motor has the drive belt, the drive belt is also installed to one side of gear, and the rotation through the first rotation motor that is equipped with can drive the rotation of drive belt to drive the gear and remove on the chain surface, and then drive the installation piece and remove on supporting the horizontal pole surface.

6. The mining machine support arm of claim 1, wherein: the utility model discloses a motor, including installation piece, support column, fixed column, first push rod motor, second rotation motor, support column, transfer piece, fixed column top, fluting has been seted up to one side at fixed column top, the fluting is the quarter columniform, first push rod motor is installed to the inside opposite side of installation piece, first push rod motor is installed to the bottom of fixed column, the second rotation motor is installed on the top of first push rod motor, the support column is installed at the top of the branch that the second rotated the motor, the transfer piece is installed on the top of support.

7. The mining machine support arm of claim 1, wherein: the top of supporting the horizontal pole is installed two fixed bolsters, the surface mounting of installation piece has operating panel, operating panel's surface mounting has a plurality of rotation motor switch and a plurality of push rod motor switch, two block pieces are installed to one side of supporting the horizontal pole, two block pieces are installed in one side of mine car.

8. The mining machine support arm of claim 7, wherein: one side of block bottom is rotated and is connected with the mounting panel, the pneumatic cylinder is installed to the bottom of mounting panel, the hydraulic stem of pneumatic cylinder and one side of mine car inner wall are corresponding, when the hydraulic stem of pneumatic cylinder stretches out, can form an contained angle between mounting panel and the mine car, the angle on the slope of contained angle and slide rail one side is the same.

9. The mining machine support arm of claim 1, wherein: the use steps are as follows:

a: firstly, a fixed support is arranged on one side close to the surface of a mine car, the fixed support is clamped with the inner wall of the mine car through a clamping block and a mounting plate, a hydraulic cylinder is switched on through a hydraulic cylinder switch on the surface of an operation panel, the hydraulic cylinder supports the inner wall of a carriage of the mine car at the moment, the top of the mounting plate and the clamping block rotate, and a slope is formed between the mounting plate and the inner wall of the mine car;

b: the rotation of the transmission belt can be driven through the rotation of the first rotating motor, so that the gear is driven to move on the surface of the chain, the installation block is driven to move on the surface of the supporting cross rod, the position of the installation block is adjusted, the first push rod motor is arranged to contract downwards, the supporting column is driven to move, the rotation block and the supporting arm are driven to move, a third rotating motor switch is opened, the third rotating motor rotates, the connecting rope is discharged, the extension containing box can slide downwards under the action of the sliding rail, when the extension containing box slides to the bottom of a slope, the extension containing box does not slide downwards, but the extension containing box is in an inclined state at the moment;

c: when the extension containing box extends out, a third push rod motor is opened, the third push rod motor extends out, a movable plate rotates at the bottom end of the extension containing box, an extension bag extends out in the rotating process, the storage capacity is increased, ore is thrown into the feeding groove, the ore is collected in the extension containing box, a third rotating motor switch is opened, the extension containing box is dragged into the supporting arm under the action of a connecting rope, the first push rod motor is opened to enable the supporting arm to ascend, the second rotating motor switch is opened to enable the second rotating motor to rotate, when the supporting arm is shifted into the mine car, the connecting rope is drawn out again, the extension containing box is placed on the surface of the mounting plate, the third push rod motor is retracted, the top of the movable plate is closed by the third push rod motor, the extension bag is pressed, and the ore in the extension bag flows out from the pressing groove, when the inside ore of extension containing box is less, push pedal through being equipped with is released the second push rod motor to make the ore drop to the mine car in from the pressfitting groove, accomplish the ore loading.

Technical Field

The invention relates to the field of mining machinery, in particular to a mining machinery supporting arm.

Background

The supporting arm is an arm capable of balancing gravity and supporting force, the existing supporting mechanical supporting arm has the supporting effect in the device, the function is single, and a large number of mechanical devices in the mining machinery need to use the supporting arm to operate; present ore is generally all transported through the mine car after the excavation is accomplished, tradition all is put into the mine car or uses the excavator to shift the ore through the manpower, can increase human resources when using the manpower, need extra economic input, when using the excavator to shift the ore, need control the volume that the ore single shifted, if the volume that shifts does not hold well, when removing to the mine car in, unnecessary ore can be followed and scattered in the mine car, need collect once more, influence efficiency.

Therefore, the mine mechanical support arm can transfer ores a small amount at a time through the mechanical support arm, so that the ores are prevented from leaking and the working efficiency is improved.

Disclosure of Invention

The invention mainly aims to provide a mining machinery supporting arm which can effectively solve the problems that in the background technology, when manpower is used, human resources are increased when ores are transferred, extra economic investment is needed, when an excavator is used for transferring the ores, the amount of the ores transferred once needs to be controlled, if the amount of the ore transfer is not well held, redundant ores can be scattered from a mine car when the ore transfer is moved into the mine car, and the ores need to be collected again.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a mining machinery support arm, is including supporting horizontal pole and installation piece, installation piece and support horizontal pole swing joint, the support arm is installed to installation piece one side, the support arm is hollow structure, support arm internally mounted has the slide rail, the surface mounting of slide rail has the extension containing box, one side of slide rail is slope shape, extend containing box at slide rail surface sliding connection, just the bottom on the slope of slide rail is equipped with the limiting plate, the limiting plate that the extension containing box was equipped with can not follow the slide rail surface and drop.

Furthermore, a second push rod motor is installed on one side of the inner wall of the extension containing box, a push plate is installed on the surface of the second push rod motor, a pressing groove is formed in the front face of the extension containing box, the size and the size of the pressing groove are the same as those of the push plate, and a feeding groove is installed at the top of the extension containing box.

Further, the post is received in a side-mounting of support arm inner wall, the inside of receiving the post is cavity, the surface mounting of receiving the post has the connection rope, the one end of connecting the rope links to each other with one side of extending the containing box, the third rotation motor is installed to one side of slide rail, the third rotates the bottom that the motor is in receiving the post, the other end of connecting the rope passes the surface of receiving the post and the third rotates the motor axis of rotation and links to each other.

Further, the fly leaf is installed to one side of extending the containing box, the bottom of fly leaf and the bottom of extending the containing box opposite side are rotated and are connected, the surface mounting of fly leaf has around the bag one end of extension, one side surface mounting of extending the containing box has around the bag other end of extension, extend one side on the top of containing box and install the third push rod motor, the push rod of third push rod motor and the top of fly leaf link to each other.

Further, the surface mounting who supports the horizontal pole has the chain, the gear is installed to one side of installation piece, first rotation motor is installed to the bottom of installation piece, the dwang surface mounting of first rotation motor has the drive belt, the drive belt is also installed to one side of gear, and the rotation through the first rotation motor that is equipped with can drive the rotation of drive belt to drive the gear and remove on the chain surface, and then drive the installation piece and remove on supporting the horizontal pole surface.

Further, the fixed column is installed to the inside opposite side of installation piece, first push rod motor is installed to the bottom of fixed column, the second is installed on the top of first push rod motor and is rotated the motor, the support column is installed at the top of the branch that the second rotated the motor, the transfer piece is installed on the top of support column, a side-mounting and the support arm connection of transfer piece, the fluting has been seted up to one side at fixed column top, the fluting is the quarter columniform.

Further, two fixed bolsters are installed at the top of supporting the horizontal pole, the surface mounting of installation piece has operating panel, operating panel's surface mounting has a plurality of motor switch and the motor switch of a plurality of push rods of rotating, support one side of horizontal pole and install two block, two block installs the one side at the mine car.

Further, one side of block bottom is rotated and is connected with the mounting panel, the pneumatic cylinder is installed to the bottom of mounting panel, the hydraulic stem of pneumatic cylinder and one side of mine car inner wall are corresponding, when the hydraulic stem of pneumatic cylinder stretches out, can form an contained angle between mounting panel and the mine car, the contained angle is the same with the angle on the slope of slide rail one side.

The use steps are as follows:

a: firstly, a fixed support is arranged on one side close to the surface of a mine car, the fixed support is clamped with the inner wall of the mine car through a clamping block and a mounting plate, a hydraulic cylinder is switched on through a hydraulic cylinder switch on the surface of an operation panel, the hydraulic cylinder supports the inner wall of a carriage of the mine car at the moment, the top of the mounting plate and the clamping block rotate, and a slope is formed between the mounting plate and the inner wall of the mine car;

b: the rotation of the transmission belt can be driven through the rotation of the first rotating motor, so that the gear is driven to move on the surface of the chain, the installation block is driven to move on the surface of the supporting cross rod, the position of the installation block is adjusted, the first push rod motor is arranged to contract downwards, the supporting column is driven to move, the rotation block and the supporting arm are driven to move, a third rotating motor switch is opened, the third rotating motor rotates, the connecting rope is discharged, the extension containing box can slide downwards under the action of the sliding rail, when the extension containing box slides to the bottom of a slope, the extension containing box does not slide downwards, but the extension containing box is in an inclined state at the moment;

c: when the extension containing box extends out, a third push rod motor is opened, the third push rod motor extends out, a movable plate rotates at the bottom end of the extension containing box, an extension bag extends out in the rotating process, the storage capacity is increased, ore is thrown into the feeding groove, the ore is collected in the extension containing box, a third rotating motor switch is opened, the extension containing box is dragged into the supporting arm under the action of a connecting rope, the first push rod motor is opened to enable the supporting arm to ascend, the second rotating motor switch is opened to enable the second rotating motor to rotate, when the supporting arm is shifted into the mine car, the connecting rope is drawn out again, the extension containing box is placed on the surface of the mounting plate, the third push rod motor is retracted, the top of the movable plate is closed by the third push rod motor, the extension bag is pressed, and the ore in the extension bag flows out from the pressing groove, when the inside ore of extension containing box is less, push pedal through being equipped with is released the second push rod motor to make the ore drop to the mine car in from the pressfitting groove, accomplish the ore loading.

Compared with the prior art, the invention has the following beneficial effects:

1. the ore can be collected and transferred through the extension containing box, the working efficiency is improved, in the process of transferring the ore, the third rotating motor switch is turned on, the third rotating motor rotates, so that the connecting rope is discharged, under the action of the slide rail, the extension containing box can slide downwards, partial ore storage capacity can be additionally increased through the third push rod motor and the extension bag, meanwhile, the ore is convenient to transfer subsequently, the third push rod motor is opened and extends out, at the moment, the movable plate can rotate at the bottom end of the extension containing box, in the rotating process, the extension bag can be extended to increase the storage capacity, ores are thrown into the feeding groove at the moment, the ores can be collected in the extension containing box, the third rotating motor switch is turned on, and the extension containing box can be pulled into the supporting arm under the action of the connecting rope;

2. can make the installation piece remove on the surface that supports the horizontal pole through the chain and the first rotating motor that are equipped with, change its position, second rotating motor and first push rod motor through being equipped with can make the support arm shift, can support it when extending the containing box and unloading the ore through mounting panel and the pneumatic cylinder that are equipped with, avoid the ore to drop in succession and can cause the damage to extending the containing box, the pneumatic cylinder is opened to the pneumatic cylinder switch through operating panel surface, the pneumatic cylinder supports the inner wall in mine car carriage this moment, the top and the block of mounting panel rotate, and form a slope between mounting panel and the mine car inner wall, when the support arm shifts into the mine car inside into, put down the connection rope, extend the containing box and stretch out once more, and be in the surface of mounting panel.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a mining machine support arm according to the present invention;

FIG. 2 is a schematic diagram of an internal structure of a mounting block of a mining machine support arm according to the present invention;

FIG. 3 is a schematic diagram of an internal structure of a support arm of a mining machine support arm according to the present invention;

FIG. 4 is a schematic structural view of an extension storage box of a mining machine support arm according to the present invention;

fig. 5 is a schematic diagram of the internal structure of the mounting plate of the mining machine support arm according to the present invention.

In the figure: 1. a support rail; 2. a chain; 3. mounting blocks; 4. fixing a column; 5. a support arm; 6. an operation panel; 7. a clamping block; 8. a mine car; 9. fixing a bracket; 10. a gear; 11. a transmission belt; 12. a first rotating electric machine; 13. a transfer block; 14. a support pillar; 15. a second rotating electric machine; 16. a first push rod motor; 17. grooving; 18. an extension storage box; 19. connecting ropes; 20. a wire retracting column; 21. a third rotating electric machine; 22. a slide rail; 23. pushing the plate; 24. a second push rod motor; 25. a third push rod motor; 26. a movable plate; 27. an extension bag; 28. a pressing groove; 29. a feeding trough; 30. mounting a plate; 31. and a hydraulic cylinder.

Detailed Description

The present invention will be further described with reference to the following detailed description, wherein the drawings are for illustrative purposes only and are not intended to be limiting, wherein certain elements may be omitted, enlarged or reduced in size, and are not intended to represent the actual dimensions of the product, so as to better illustrate the detailed description of the invention.

Example 1

As shown in fig. 1-5, a mining machinery support arm, including supporting horizontal pole (1) and installation piece (3), installation piece (3) and supporting horizontal pole (1) swing joint, support arm (5) are installed to installation piece (3) one side, support arm (5) are hollow structure, support arm (5) internally mounted has slide rail (22), the surface mounting of slide rail (22) has extension containing box (18), one side of slide rail (22) is slope shape, extend containing box (18) at slide rail (22) surface sliding connection, and the bottom on the slope of slide rail (22) is equipped with the limiting plate, it can not follow slide rail (22) surface through the limiting plate that is equipped with and drop to extend containing box (18).

One side of the inner wall of the extension containing box (18) is provided with a second push rod motor (24), the surface of the second push rod motor (24) is provided with a push plate (23), the front surface of the extension containing box (18) is provided with a pressing groove (28), the size and the dimension of the pressing groove (28) are the same as those of the push plate (23), and the top of the extension containing box (18) is provided with a feeding groove (29).

Support arm (5) one side-mounting of inner wall is received terminal (20), the inside of receiving terminal (20) is cavity, the surface mounting who receives terminal (20) connects rope (19), the one end of connecting rope (19) links to each other with the one side that extends containing box (18), third rotation motor (21) are installed to one side of slide rail (22), third rotation motor (21) are in the bottom of receiving terminal (20), the other end of connecting rope (19) passes the surface and the third rotation motor (21) axis of rotation of receiving terminal (20) and links to each other.

A movable plate (26) is installed on one side of the extension containing box (18), the bottom end of the movable plate (26) is rotatably connected with the bottom end of the other side of the extension containing box (18), the surface of the movable plate (26) is provided with the periphery of one end of an extension bag (27), the surface of one side of the extension containing box (18) is provided with the periphery of the other end of the extension bag (27), a third push rod motor (25) is installed on one side of the top end of the extension containing box (18), and a push rod of the third push rod motor (25) is connected with the top end of the movable plate (26).

By adopting the technical scheme: the ore can be collected and transferred through the arranged extension containing box (18), the work efficiency is improved, in the process of transferring the ore, a switch of a third rotating motor (21) is opened, the third rotating motor (21) rotates, so that a connecting rope (19) is released, under the action of a sliding rail (22), the extension containing box (18) can slide downwards, partial ore storage capacity can be additionally increased through a third push rod motor (25) and an extension bag (27), meanwhile, the ore can be conveniently transferred subsequently, the third push rod motor (25) is opened, the third push rod motor (25) extends out, at the moment, a movable plate (26) can rotate at the bottom end of the extension containing box (18), in the rotating process, the extension bag (27) can extend, the storage capacity is increased, at the moment, the ore is thrown into the feeding groove (29), and the ore can be collected in the extension containing box (18), when the switch of the third rotating motor (21) is turned on, the extension containing box (18) is pulled into the supporting arm (5) under the action of the connecting rope (19).

Example 2

As shown in fig. 1-5, a mining machinery support arm, including supporting horizontal pole (1) and installation piece (3), installation piece (3) and supporting horizontal pole (1) swing joint, support arm (5) are installed to installation piece (3) one side, support arm (5) are hollow structure, support arm (5) internally mounted has slide rail (22), the surface mounting of slide rail (22) has extension containing box (18), one side of slide rail (22) is slope shape, extend containing box (18) at slide rail (22) surface sliding connection, and the bottom on the slope of slide rail (22) is equipped with the limiting plate, it can not follow slide rail (22) surface through the limiting plate that is equipped with and drop to extend containing box (18).

Support the surface mounting of horizontal pole (1) and have chain (2), gear (10) are installed to one side of installation piece (3), first rotation motor (12) are installed to the bottom of installation piece (3), the dwang surface mounting of first rotation motor (12) has drive belt (11), drive belt (11) are also installed to one side of gear (10), the rotation through the first rotation motor (12) that is equipped with can drive the rotation of drive belt (11), thereby drive gear (10) at chain (2) surface displacement, and then drive installation piece (3) and support horizontal pole (1) surface displacement.

Fixed column (4) are installed to the inside opposite side of installation piece (3), first push rod motor (16) are installed to the bottom of fixed column (4), second rotation motor (15) are installed on the top of first push rod motor (16), support column (14) are installed at the top of the branch that the second rotated motor (15), transfer piece (13) are installed on the top of support column (14), the side-mounting and support arm (5) of transfer piece (13) are connected, fluting (17) have been seted up to one side at fixed column (4) top, fluting (17) are the quarter columniform.

Two fixed bolsters (9) are installed at the top of supporting horizontal pole (1), and the surface mounting of installation piece (3) has operating panel (6), and the surface mounting of operating panel (6) has a plurality of motor switch and a plurality of push rod motor switch of rotating, supports one side of horizontal pole (1) and installs two block (7), and one side at mine car (8) is installed in two block (7).

One side of block (7) bottom is rotated and is connected with mounting panel (30), and pneumatic cylinder (31) are installed to the bottom of mounting panel (30), and the hydraulic stem of pneumatic cylinder (31) and one side of mine car (8) inner wall are corresponding, and when the hydraulic stem of pneumatic cylinder (31) stretches out, can form an contained angle between mounting panel (30) and mine car (8), and the contained angle is the same with the angle on the slope of slide rail (22) one side.

By adopting the technical scheme: the mounting block (3) can move on the surface of the supporting cross rod (1) through the arranged chain (2) and the first rotating motor (12) to change the position of the mounting block, the supporting arm (5) can be transferred through the arranged second rotating motor (15) and the first push rod motor (16), the mounting plate (30) and the hydraulic cylinder (31) can support the extending storage box (18) when the extending storage box (18) is used for unloading, the damage to the extending storage box (18) caused by continuous falling of ores is avoided, the hydraulic cylinder (31) is opened through the opening and closing of the hydraulic cylinder (31) on the surface of the operation panel (6), the hydraulic cylinder (31) supports the inner wall of the compartment of the mine car (8), the top of the mounting plate (30) and the clamping block (7) rotate, a slope is formed between the mounting plate (30) and the inner wall of the mine car (8), and when the supporting arm (5) rotates inside the mine car (8), the connecting rope (19) is laid down, and the extension storage box (18) is extended again and is positioned on the surface of the mounting plate (30).

When the mining machinery supporting arm is used, a fixing support (9) is firstly arranged on one side close to the surface of a mine car (8), the fixing support is clamped with the inner wall of the mine car (8) through a clamping block (7) and a mounting plate (30) which are arranged, the hydraulic cylinder (31) is opened and closed through a hydraulic cylinder (31) on the surface of an operation panel (6), the hydraulic cylinder (31) supports the inner wall of a carriage of the mine car (8), the top of the mounting plate (30) and the clamping block (7) rotate, a slope is formed between the mounting plate (30) and the inner wall of the mine car (8), the driving belt (11) can be driven to rotate through the rotation of a first rotating motor (12) which is arranged, so that a gear (10) is driven to move on the surface of a chain (2), and further, the mounting block (3) is driven to move on the surface of a supporting cross rod (1), and the position of the mounting block (3) is adjusted, the supporting column (14) is driven to move by downwards contracting the arranged first push rod motor (16), the middle rotating block (13) and the supporting arm are driven to move, a switch of the third rotating motor (21) is opened, the third rotating motor (21) rotates, the connecting rope (19) is discharged, the extension containing box (18) can downwards slide under the action of the sliding rail (22), when the extension containing box slides to the bottom of a slope, the extension containing box does not slide, but the extension containing box (18) is in an inclined state at the moment, after the extension containing box (18) extends out, the third push rod motor (25) is opened, the third push rod motor (25) extends out, the movable plate (26) can rotate at the bottom end of the extension containing box (18), the extension bag (27) can extend out in the rotating process, the storage amount is increased, ores are thrown into the feeding groove (29), ore is collected in the extension containing box (18), a switch of the third rotating motor (21) is turned on, the extension containing box (18) is pulled into the interior of the supporting arm under the action of the connecting rope (19), the first push rod motor (16) is turned on to lift the supporting arm, a switch of the second rotating motor (15) is turned on to rotate the second rotating motor (15), when the supporting arm is turned into the interior of the mine car (8), the connecting rope (19) is put down, the extension containing box (18) extends out again and is positioned on the surface of the mounting plate (30), the third push rod motor (25) is retracted, the top of the movable plate (26) is closed by the third push rod motor (25), the extension bag (27) is pressed, ore in the extension bag (27) flows out from the pressing groove (28), when less ore is in the extension containing box (18), the second push rod motor (24) is pushed out by the push plate (23), so that the ore falls into the mine car (8) from the pressing groove (28) to finish ore loading.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.