阅读说明：本技术 一种采用前俯仰桥及多连杆联动的薄煤层铲板式搬运车 (Thin coal seam shovel plate type carrier adopting front pitching bridge and multi-connecting-rod linkage ) 是由 王丽威 赵远 肖洪彬 刘德宁 王建斌 王治伟 王娜 李文军 孔令志 祁宏 郭志俊 于 2021-07-19 设计创作，主要内容包括：本发明属于煤矿井下运输车辆技术领域,具体涉及一种采用前俯仰桥及多连杆联动的薄煤层铲板式搬运车。本发明包括俯仰架、铲板、前车架、后车架、轮驱单元、多连杆机构、俯仰油缸和小铲油缸；俯仰架与轮驱单元组成前俯仰桥,前俯仰桥的底部连接有多连杆机构,实现铲板铲取角的联动变化,从而实现铲取作业时减小小铲油缸的受力,运输作业时增大铲板的铲取力；所述俯仰油缸的后端与前车架销接、前端与俯仰架销接；所述小铲油缸的后端与前车架销接；所述多连杆机构连接于俯仰架的底部,多连杆机构与小铲油缸和铲板销接,俯仰油缸驱动俯仰架旋转的同时驱动多连杆机构动作。本发明实现铲取作业时减小小铲油缸的受力,运输作业时增大铲板的铲取力。(The invention belongs to the technical field of underground coal mine transportation vehicles, and particularly relates to a thin coal seam shovel type carrier adopting a front pitching bridge and multi-connecting-rod linkage. The invention comprises a pitching frame, a shovel plate, a front frame, a rear frame, a wheel drive unit, a multi-link mechanism, a pitching oil cylinder and a small shovel oil cylinder; the pitching frame and the wheel drive unit form a front pitching bridge, the bottom of the front pitching bridge is connected with a multi-link mechanism, and linkage change of a shoveling angle of the shoveling plate is realized, so that stress of a small shoveling oil cylinder is reduced during shoveling operation, and shoveling force of the shoveling plate is increased during transportation operation; the rear end of the pitching oil cylinder is connected with the front frame through a pin, and the front end of the pitching oil cylinder is connected with the pitching frame through a pin; the rear end of the small shovel oil cylinder is connected with the front frame in a pin mode; the multi-link mechanism is connected to the bottom of the pitching frame, the multi-link mechanism is in pin joint with the small shovel oil cylinder and the shovel plate, and the pitching oil cylinder drives the pitching frame to rotate and simultaneously drives the multi-link mechanism to act. The invention reduces the stress of the shovel oil cylinder during the shoveling operation and increases the shoveling force of the shovel plate during the transportation operation.)

1. The utility model provides an adopt thin coal seam shovel board-like carrier of pitch bridge and many connecting rods linkage before, its characterized in that: the device comprises a pitching frame (1), a shovel plate (2), a front frame (3), a rear frame (4), a wheel drive unit (5), a multi-link mechanism (6), a pitching oil cylinder (7) and a small shovel oil cylinder (8);

the pitching frame (1) and the wheel drive unit (5) form a front pitching bridge, the bottom of the front pitching bridge is connected with a multi-link mechanism (6), and the linkage change of the shoveling angle of the shoveling plate (2) is realized, so that the stress of the small shoveling oil cylinder (8) is reduced during shoveling operation, and the shoveling force of the shoveling plate (2) is increased during transportation operation;

the front end of the rear frame (4) is in pin joint with a front frame (3), the front end of the front frame (3) is in pin joint with a pitching frame (1), the front end of the pitching frame (1) is in pin joint with a shovel plate (2), and the front end of the pitching frame (1) is provided with a traction winch (9); the rear end of the pitching oil cylinder (7) is in pin joint with the front frame (3), and the front end of the pitching oil cylinder is in pin joint with the pitching frame (1); the rear end of the small shovel oil cylinder (8) is in pin joint with the front frame (3); the multi-link mechanism (6) is connected to the bottom of the pitching frame (1), the multi-link mechanism (6) is in pin joint with the small shovel oil cylinder (8) and the shovel plate (2), and the pitching oil cylinder (7) drives the pitching frame (1) to rotate while the small shovel oil cylinder (8) drives the multi-link mechanism (6) to act.

2. The low seam shovel truck according to claim 1, wherein the low seam shovel truck comprises a front pitch bridge and a multi-link linkage, and the front pitch bridge comprises: the multi-link mechanism (6) comprises a tappet rod frame (6-2) and a three-head arm frame (6-1);

the three-head arm support (6-1) is of a triangular structure, three angles of the three-head arm support (6-1) are respectively provided with a pin hole, the three pin holes are respectively in pin joint with the small shovel oil cylinder (8), the pitching frame (1) and one end of the tappet frame (6-2), and the other end of the tappet frame (6-2) is in pin joint with the bottom end of the shovel plate (2).

3. The low seam shovel truck according to claim 2, wherein the low seam shovel truck comprises a front pitch bridge and a multi-link linkage, and the front pitch bridge comprises: the front end of the pitching frame (1) is provided with a middle groove (1-6), the side walls positioned at the two sides of the middle groove (1-6) are provided with mounting flange holes (1-4) which are coaxially arranged, and wheel drive units (5) are arranged in the two mounting flange holes (1-4);

the front end of the pitching frame (1) is provided with a pitching frame front pin hole (1-5) for pin joint of the top end of the shovel plate (2);

the pitching frame (1) is also provided with a pitching frame rear pin hole (1-1), a pitching frame lower pin hole (1-2) and a pitching frame middle pin hole (1-3);

the rear pin hole (1-1) of the pitching frame is in pin joint with the front frame (3), the lower pin hole (1-2) of the pitching frame is in pin joint with the pitching oil cylinder (7), and the middle pin hole (1-3) of the pitching frame is in pin joint with one pin hole of the three-head arm support (6-1).

4. The low seam shovel truck according to claim 3, wherein the shovel truck comprises a front pitch bridge and a plurality of connecting rods, and the front pitch bridge is linked with the plurality of connecting rods through a linkage mechanism, and the front pitch bridge comprises: the front frame (3) is provided with a front frame hinge hole (3-1) for being in pin joint with the rear frame (4), a front frame upper pin hole (3-2) for being in pin joint with the pitching frame rear pin hole (1-1), a front frame lower pin hole (3-3) for being in pin joint with the pitching oil cylinder (7) and a front frame middle pin hole (3-4) for being in pin joint with the small shovel oil cylinder (8).

5. The low seam shovel truck according to claim 4, wherein the front pitch bridge and the multi-link linkage are arranged in a movable manner, and the vehicle comprises: the multi-link mechanism (6) is arranged in the pitching frame (1); the traction winch (9) is connected in the middle groove (1-6) of the pitching frame (1).

6. The low seam shovel truck according to claim 5, wherein the shovel truck comprises a front pitch bridge and a plurality of connecting rods, and the front pitch bridge is linked with the plurality of connecting rods through a linkage mechanism, and the front pitch bridge comprises: the wheel driving unit (5) comprises a wheel edge motor, a wheel edge reducer and a tire.

Technical Field

The invention belongs to the technical field of underground coal mine transportation vehicles, and particularly relates to a thin coal seam shovel type carrier adopting a front pitching bridge and multi-connecting-rod linkage.

Background

Along with the continuous emergence of the thin coal seam fully mechanized mining working face, higher requirements are put forward to the dwarfing of underground transport vehicles, and when the existing shovel plate car carries a thin coal seam hydraulic support, the hydraulic support and a shovel plate car working mechanism have serious interference, so that low equipment such as the thin coal seam hydraulic support cannot be transported by the shovel plate car. Patent 201010537074.0 discloses a battery support carrier, its shovel mechanism passes the hydro-cylinder through controlling and connects the front frame, is equipped with lift cylinder in the shovel mechanism, and shovel mechanism rear portion is equipped with and passes the hydro-cylinder, passes the hydro-cylinder control shovel and does front and back concertina movement. Its shortcoming lies in, shovel board mechanism highly too high, and thin coal seam hydraulic support is unable to be loaded with shovel board mechanism interference, receives operating device's sheltering from when the driver observes the shovel board, and the shovel gets angle and shovel board high action and control respectively, can not realize the linkage, and the operation is comparatively complicated, and in addition, all work hydro-cylinders all expose near the shovel board, and all adopt and have the pole chamber effect, and the hydro-cylinder fault rate is higher.

Disclosure of Invention

The invention aims to solve the problems and provides a shovel-type carrier for a thin coal seam, which adopts a front pitching bridge and multi-connecting-rod linkage.

The invention is realized by adopting the following technical scheme: a shovel plate type carrier adopting a front pitching bridge and multi-connecting-rod linkage for a thin coal seam comprises a pitching frame, a shovel plate, a front frame, a rear frame, a wheel drive unit, a multi-connecting-rod mechanism, a pitching oil cylinder and a small shovel oil cylinder;

the pitching frame and the wheel drive unit form a front pitching bridge, and the bottom of the front pitching bridge is connected with a multi-link mechanism to realize linkage change of a shoveling angle of the shoveling plate, so that the stress of the small shoveling oil cylinder is reduced during shoveling operation, and the shoveling force of the shoveling plate is increased during transportation operation;

the front end of the rear frame is in pin joint with a front frame, the front end of the front frame is in pin joint with a pitching frame, the front end of the pitching frame is in pin joint with a shovel plate, and the front end of the pitching frame is provided with a traction winch; the rear end of the pitching oil cylinder is connected with the front frame through a pin, and the front end of the pitching oil cylinder is connected with the pitching frame through a pin; the rear end of the small shovel oil cylinder is connected with the front frame in a pin mode; the multi-link mechanism is connected to the bottom of the pitching frame, the multi-link mechanism is in pin joint with the small shovel oil cylinder and the shovel plate, and the small shovel oil cylinder drives the multi-link mechanism to act while the pitching oil cylinder drives the pitching frame to rotate.

Further, the multi-link mechanism comprises a tappet rod frame and a three-head arm frame;

furthermore, the three-head arm support is of a triangular structure, three angles of the three-head arm support are respectively provided with a pin hole, the three pin holes are respectively in pin connection with the small shovel oil cylinder, the pitching frame and one end of the tappet frame, and the other end of the tappet frame is in pin connection with the bottom end of the shovel plate.

Furthermore, a middle groove is formed in the front end of the pitching frame, mounting flange holes which are coaxially arranged are formed in the side walls on the two sides of the middle groove, and wheel driving units are mounted in the two mounting flange holes;

the front end of the pitching frame is provided with a pitching frame front pin hole for pin joint of the top end of the shovel plate;

the pitching frame is also provided with a pitching frame rear pin hole, a pitching frame lower pin hole and a pitching frame middle pin hole;

the rear pin hole of the pitching frame is connected with the front frame through a pin, the lower pin hole of the pitching frame is connected with the pitching oil cylinder through a pin, and the middle pin hole of the pitching frame is connected with one pin hole of the three-head arm frame through a pin.

Furthermore, the front frame is provided with a front frame hinge hole for being in pin connection with the rear frame, a front frame upper pin hole for being in pin connection with the pitching frame rear pin hole, a front frame lower pin hole for being in pin connection with the pitching cylinder and a front frame middle pin hole for being in pin connection with the small shovel cylinder.

Furthermore, the multi-link mechanism is arranged in the pitching frame; the traction winch is connected in the middle groove of the pitching frame.

Further, the wheel drive unit comprises a wheel motor, a wheel reducer and a tire.

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

1. the linkage change of the shovel plate shoveling angle is realized by the front pitching bridge and the multi-link mechanism, so that the stress of a small shovel oil cylinder is reduced during shoveling operation, and the shoveling force of a shovel plate is increased during transportation operation to realize the linkage change of the shovel plate shoveling angle;

2. the multi-link mechanism and the traction winch are hidden in the pitching frame, so that the height of the front part of a vehicle body is reduced, and the visual field of a driver is better when the vehicle works in a thin coal seam environment;

3. according to the shovel plate lifting device, the shovel plate is lifted through the action of the front pitching bridge, the shovel angle is driven by the multi-link mechanism to realize linkage change, the small shovel oil cylinder is kept still, the shovel loading operation can be completed only through the operation of the pitching oil cylinder, and the operation of a driver is simplified;

4. the pitching oil cylinder and the small shovel oil cylinder both adopt rodless cavities to bear the load of the shovel plate, and the oil cylinder is far away from the shovel plate, so that the damage caused by the impact of foreign matters is avoided, and the reliability is higher;

in conclusion, the invention is particularly suitable for carrying operation in the low space of the thin coal seam with severe environment.

Drawings

Fig. 1 is a front view of the overall structure of the truck;

FIG. 2 is a side view of the overall structure of the truck;

FIG. 3 is a schematic view of a partial structure of a truck;

FIG. 4 is a schematic structural diagram of a pitching frame;

FIG. 5 is a schematic structural view of the front frame;

FIG. 6: schematic diagram of a blade shoveling operation;

FIG. 7: a schematic view of a blade transport operation;

in the figure: 1-pitching frame, 1-1-pitching frame rear pin hole, 1-2-pitching frame lower pin hole, 1-3-pitching frame middle pin hole, 1-4-flange hole, 1-5-pitching frame front pin hole, 1-6-middle groove, 2-shovel plate, 3-front frame, 3-1-front frame hinge hole, 3-2-front frame upper pin hole, 3-3-front frame lower pin hole, 3-4 front frame middle pin hole, 4-rear frame, 5-wheel drive unit, 6-multi-link mechanism, 6-1-three-head arm support, 6-2-tappet frame, 7-pitching cylinder, 8-small shovel cylinder and 9-traction winch.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.

It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.

Referring to fig. 1 to 5, the present invention provides a technical solution: a shovel plate type carrier adopting a front pitching bridge and multi-connecting-rod linkage for a thin coal seam comprises a pitching frame 1, a shovel plate 2, a front frame 3, a rear frame 4, a wheel drive unit 5, a multi-connecting-rod mechanism 6, a pitching oil cylinder 7 and a small shovel oil cylinder 8;

the pitching frame 1 and the wheel drive unit 5 form a front pitching bridge, the bottom of the front pitching bridge is connected with a multi-link mechanism 6, and linkage change of a shoveling angle of the shoveling plate 2 is realized, so that stress of the small shoveling oil cylinder 8 is reduced during shoveling operation, and shoveling force of the shoveling plate 2 is increased during transportation operation;

the front end of the rear frame 4 is pinned with a front frame 3, the front end of the front frame 3 is pinned with a pitching frame 1, the front end of the pitching frame 1 is pinned with a shovel plate 2, and the front end of the pitching frame 1 is provided with a traction winch 9; the rear end of the pitching oil cylinder 7 is in pin joint with the front frame 3, and the front end of the pitching oil cylinder is in pin joint with the pitching frame 1; the rear end of the small shovel oil cylinder 8 is connected with the front frame 3 in a pin mode; the multi-link mechanism 6 is connected to the bottom of the pitching frame 1, the multi-link mechanism 6 is in pin joint with the small shovel cylinder 8 and the shovel plate 2, and the pitching cylinder 7 drives the pitching frame 1 to rotate while the small shovel cylinder 8 drives the multi-link mechanism 6 to act.

The multi-link mechanism 6 comprises a tappet rod frame 6-2 and a three-head arm frame 6-1;

the three-head arm support 6-1 is of a triangular structure, three angles of the three-head arm support 6-1 are respectively provided with a pin hole, the three pin holes are respectively in pin connection with the small shovel oil cylinder 8, the pitching frame 1 and one end of the tappet rod frame 6-2, and the other end of the tappet rod frame 6-2 is in pin connection with the bottom end of the shovel plate 2.

The front end of the pitching frame 1 is provided with a middle groove 1-6, the side walls positioned at two sides of the middle groove 1-6 are provided with mounting flange holes 1-4 which are coaxially arranged, and wheel drive units 5 are arranged in the two mounting flange holes 1-4;

the front end of the pitching frame 1 is provided with pitching frame front pin holes 1-5 for pin joint of the top end of the shovel plate 2;

the pitching frame 1 is also provided with a pitching frame rear pin hole 1-1, a pitching frame lower pin hole 1-2 and a pitching frame middle pin hole 1-3;

the rear pin hole 1-1 of the pitching frame is connected with the front frame 3 by a pin, the lower pin hole 1-2 of the pitching frame is connected with the pitching oil cylinder 7 by a pin, and the pin hole 1-3 of the pitching frame is connected with one pin hole of the three-head arm frame 6-1 by a pin.

The front frame 3 is provided with a front frame hinge hole 3-1 for pin joint with the rear frame 4, a front frame upper pin hole 3-2 for pin joint with the pitching frame rear pin hole 1-1, a front frame lower pin hole 3-3 for pin joint with the pitching cylinder 7 and a front frame middle pin hole 3-4 for pin joint with the small shovel cylinder 8.

The multi-link mechanism 6 is arranged in the pitching frame 1; the traction winch 9 is connected in the middle groove 1-6 of the pitching frame 1.

The wheel driving unit 5 comprises a wheel edge motor, a wheel edge reducer and a tire.

The pitching frame 1 and the wheel driving unit 5 form a front pitching bridge.

The multi-link mechanism 6 is positioned in the middle of the two mounting flange holes 1-4 on the left side and the right side.

When in shoveling operation, the small shovel oil cylinder 8 is basically not stressed because the multi-link mechanism 6 is positioned near the dead point position; during transportation operation, the load of the shovel plate 2 is directly transmitted to the grounding point of the front tire through the pitching frame 1, and the horizontal distance of the shovel plate 2 according to the grounding point of the front tire is short, so that the shoveling capacity is high;

the shovel plate 2 performs a shoveling operation, as shown in fig. 6: the small shovel oil cylinder 8 is kept still, the pitching oil cylinder 7 retracts to drive the pitching frame 1 to rotate clockwise, the three-head arm frame 6-1 is pushed by the small shovel oil cylinder 8 to rotate clockwise, the rotation angle of the shovel plate 2 is smaller than that of the pitching frame 1, the phenomenon that the shoveling angle is too large when a shovel point falls to the ground is avoided, the A, B, C point approaches to a collineation at the moment, the stress of the small shovel oil cylinder 8 is minimum (basically no stress), and therefore the impact force on the small shovel oil cylinder 8 during shoveling operation is reduced;

the blade 2 is raised for the transport operation, as shown in fig. 7: the pitching oil cylinder 7 extends out to push the pitching frame 1 to rotate anticlockwise, the three-head arm frame 6-1 is pushed by the tappet frame 6-2 to rotate anticlockwise at the same time, the shovel plate 2 is lifted to form backward negative-angle inclination, the point B is driven by the multi-link mechanism to automatically ascend to the position above a connecting line of A, C points, the rodless cavities of the pitching oil cylinder 7 and the small shovel oil cylinder 8 bear the load of the shovel plate, the shoveling force of the shovel plate 2 is increased, and the angle adjustment of the shovel plate is realized through the telescopic action of the small shovel oil cylinder.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.