A side-dumping scraper system for a bottoming machine

Abstract

The invention provides a side dumping type scraper system of a floor laying machine, and belongs to the technical field of roadway repair, wherein a back surface of a bucket main body is provided with a pin barrel frame I and a pin barrel frame II; both sides of a connecting frame are provided with a pin barrel I and a pin barrel II, the pin barrel I is used for being connected and matched with the pin barrel frame I, and the pin barrel II is used for being connected and matched with the pin barrel frame II; a connecting pin passes through the connected and matched pin barrel frame I and the pin barrel I, so that the bucket main body and the connecting frame are rotationally connected; a front end of a side dumping type oil cylinder is hinged to an outer side of the bucket main body and is located on a symmetry axis of the pin barrel frame I and the pin barrel frame II; a rear end of the side dumping type oil cylinder is hinged to the connecting frame and is located between the pin barrel I and the pin barrel II; a side baffle is provided on the same side of the pin barrel frame II and the pin barrel II, and an opening of the bucket main body located on the side of the pin barrel frame II is closed. When the floor laying machine and a loading vehicle are operated in parallel in a narrow roadway in a coal mine, the above-mentioned side dumping type scraper system of the floor laying machine can dump the materials in the bucket main body into the loading vehicle without repeatedly adjusting the posture and position of the floor laying machine.

Description

Technical Field

[0001] This invention belongs to the technical field of tunnel repair, and specifically discloses a side-discharge shovel and transport system for undercarriage repair. Background Technology

[0002] The tunnel repair machine, also known as a roadway repair machine, is a comprehensive intelligent equipment specifically designed for underground mining operations. It integrates drilling, crushing, loading, and transportation functions, and features a compact structure, high mobility, and high degree of automation.

[0003] For example, CN105714865A discloses a roadway repair machine for coal mines, which includes a vehicle body and an actuator. The vehicle body includes a traveling device and a frame mounted on top of the traveling device. The actuator includes a boom, a forearm, and a bucket. One end of the boom is mounted on the front end of the frame through a lifting mechanism. The boom is connected to the forearm, and the other end of the forearm is equipped with a bucket.

[0004] The above-mentioned patents still have the following issues that need to be addressed: The bucket achieves unloading by swinging its head. When the bottom-loading machine and the loading car are operating in parallel in the narrow roadways of the coal mine, the bottom-loading machine needs to repeatedly adjust its posture in order to pour the material in the bucket into the loading car. Summary of the Invention

[0005] This invention provides a side-discharge shovel and conveyor system for a shovel, in order to solve the technical problems described in the background.

[0006] The aforementioned underbody machine side-discharge shovel system includes a bucket body, a connecting frame, a connecting pin, a side-discharge cylinder, and a side baffle. Pin holder I and pin holder II are installed on the back of the bucket body. Pin holder I and pin holder II are installed on both sides of the connecting frame. Pin holder I is used to engage with pin holder I, and pin holder II is used to engage with pin holder II. The connecting pin passes through the engaging pin holder I and pin holder II, allowing the bucket body and the connecting frame to rotate. The front end of the side-discharge cylinder is hinged to the outer side of the bucket body and is located on the axis of symmetry of pin holder I and pin holder II. The rear end of the side-discharge cylinder is hinged to the connecting frame and is located between pin holder I and pin holder II. The side baffle is installed on the same side as pin holder II and pin holder II, closing the opening of the bucket body located on the side of pin holder II.

[0007] The aforementioned underbody machine side-discharge shovel system also includes a guide plate; the guide plate is set on the same side as the pin frame I and the pin cylinder I, and is connected to the opening of the bucket body located on the side of the pin frame I.

[0008] In the aforementioned under-dump shovel system, the side baffles and guide plates are all connected to the bucket body by bolts.

[0009] In the aforementioned under-dump shovel system, the bottom surface of the bucket body is provided with a wear-resistant plate, and bucket teeth are provided on the wear-resistant plate.

[0010] In the aforementioned side-discharge shovel system, a hydraulic cylinder connecting frame is installed on the outer side of the bucket body; the hydraulic cylinder connecting frame is located between pin frame I and pin frame II, and is hinged to the front end of the side-discharge hydraulic cylinder.

[0011] In the aforementioned under-dump shovel system, lifting rings are provided on the outer side of the bucket body and the outer side of the hydraulic cylinder connecting frame.

[0012] In the aforementioned under-floor side-discharge shovel system, the rear end of the connecting frame is equipped with a connecting component that mates with the quick-change device.

[0013] The aforementioned side-discharge shovel system also includes a hydraulic oil tank, a hydraulic pump, a three-position four-way directional valve, a two-position three-way directional valve, an accumulator, a switching valve, a proximity switch, and a controller. The inlet of the hydraulic pump is connected to the hydraulic oil tank, and the outlet of the hydraulic pump is connected to the P port of the three-position four-way directional valve. The A port of the three-position four-way directional valve is connected to the rod chamber of the side-discharge cylinder, and the rodless chamber of the side-discharge cylinder is connected to the A port of the two-position three-way directional valve. The P port of the two-position three-way directional valve is connected to the B port of the three-position four-way directional valve, and the T port of the three-position four-way directional valve is connected back to the hydraulic oil tank. The T port of the two-position three-way directional valve, the interface of the accumulator, and the A port of the switching valve are connected at the intersection, and the B port of the switching valve is connected back to the hydraulic oil tank. The proximity switch is used to detect the distance between the bucket body and the connecting frame. The control terminals of the three-position four-way directional valve, the two-position three-way directional valve, the switching valve, and the proximity switch are all connected to the controller.

[0014] The aforementioned underfloor side-discharge shovel system also includes an overflow valve; the inlet of the overflow valve, the T port of the two-position three-way directional valve, the interface of the accumulator, and the A port of the switching valve are connected together, and the outlet of the overflow valve is connected back to the hydraulic oil tank.

[0015] The aforementioned undercarriage side-discharge shovel system also includes an inlet oil filter, an inlet oil check valve, a return oil filter, a return oil check valve, and a hydraulic pump drive motor. The hydraulic oil tank is connected to the inlet of the inlet oil filter, the outlet of the inlet oil filter is connected to the inlet of the inlet oil check valve, and the outlet of the inlet oil check valve is connected to the inlet of the hydraulic pump. The T port of the three-position four-way directional valve, the B port of the switching valve, and the outlet of the relief valve converge and are connected to the inlet of the return oil check valve. The outlet of the return oil check valve is connected to the inlet of the return oil filter, and the outlet of the return oil filter is connected back to the hydraulic oil tank. The hydraulic pump drive motor is controlled by a controller to drive the hydraulic pump.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The aforementioned side-discharge shovel system for the under-dump machine uses a side-discharge hydraulic cylinder to drive the bucket body to rotate around pin cylinder I and swing left and right relative to the connecting frame to adjust the unloading angle, rather than using a head swing to achieve left and right swing. The material inside the bucket body can be discharged from the opening on the side of the pin cylinder frame I of the bucket body. When the under-dump machine and the loading car are operating in parallel in the narrow roadway of the coal mine, the material in the bucket body can be poured into the loading car without repeatedly adjusting the attitude and position of the under-dump machine. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 A three-dimensional view of the first direction of the undercarriage side-discharge shovel system; Figure 2 A three-dimensional view of the second direction of the undercarriage side-discharge shovel system; Figure 3 This is a three-dimensional view of the undercarriage side-discharge shovel system. Figure 4 This is a top view of the unloading shovel system; Figure 5 This is a hydraulic schematic diagram of an unloading shovel system.

[0019] In the diagram: 1-Bucket body; 2-Connecting frame; 3-Connecting pin; 4-Side unloading cylinder; 5-Side baffle; 6-Pin cylinder frame I; 7-Pin cylinder frame II; 8-Pin cylinder I; 9-Pin cylinder II; 10-Guide plate; 11-Wear-resistant plate; 12-Bucket teeth; 13-Cylinder connecting frame; 14-Lifting ring; 15-Connecting piece; 16-Hydraulic oil tank; 17-Hydraulic pump; 18-Three-position four-way directional valve; 19-Two-position three-way directional valve; 20-Accumulator; 21-Switch valve; 22-Proximity switch; 23-Controller; 24-Relief valve; 25-Inlet filter; 26-Inlet check valve; 27-Return filter; 28-Return check valve; 29-Hydraulic pump drive motor. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportional relationships, or adjustments to the size, without affecting the effects and objectives that the present invention can produce, should fall within the scope of the technical content disclosed in the present invention. It should be noted that in this specification, relational terms such as "first" and "second" are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0022] This embodiment provides a side-discharge shovel system for a shovel loader, including a bucket body 1, a connecting frame 2, a connecting pin 3, a side-discharge cylinder 4, and a side baffle 5. A pin holder I 6 and a pin holder II 7 are provided on the back of the bucket body 1. Pin holders I 8 and II 9 are provided on both sides of the connecting frame 2. Pin holder I 8 is used to engage with pin holder I 6, and pin holder II 9 is used to engage with pin holder II 7. The connecting pin 3 passes through the engaging pin holders I 6 and I 8, allowing the bucket body 1 and the connecting frame 2 to rotate and connect. The front end of the side-discharge cylinder 4 is hinged to the outer side of the bucket body 1 and is located on the axis of symmetry of pin holders I 6 and II 7. The rear end of the side-discharge cylinder 4 is hinged to the connecting frame 2 and is located between pin holders I 8 and II 9. The side baffle 5 is located on the same side as pin holders II 7 and II 9, closing the opening of the bucket body 1 on the side of pin holder II 7.

[0023] The aforementioned side-discharge shovel system uses a side-discharge hydraulic cylinder 4 to drive the bucket body 1, which rotates around the pin cylinder I 8 and swings left and right relative to the connecting frame 2 to adjust the unloading angle. This is achieved through a head-swing mechanism, not a head-swinging mechanism. Material inside the bucket body 1 is discharged from the opening on the side of the pin cylinder frame I 6. When the shovel and the loading vehicle operate parallel in narrow underground mine tunnels, the material in the bucket body 1 can be poured into the loading vehicle without repeated adjustments to the shovel's posture and position. This system is particularly suitable for construction in narrow underground tunnels, tunnel openings, connecting tunnels, widening sidewalls, and opening reverse access points.

[0024] When pin holder I6 and pin holder I8 point to the left, the bucket body 1 unloads material from the left side; when pin holder I6 and pin holder I8 point to the right (as shown in the figure), the bucket body 1 unloads material from the right side.

[0025] The above-mentioned under-floor side-discharge shovel system also includes a guide plate 10; the guide plate 10 is set on the same side as the pin frame I6 and the pin cylinder I8, and is connected to the opening of the bucket body 1 on the side of the pin frame I6 (i.e. the unloading port of the bucket body 1).

[0026] In the aforementioned underbody machine side-discharge shovel system, the side baffle 5 and the guide plate 10 are both connected to the bucket body 1 by bolts. This detachable connection allows for switching between left-side and right-side discharge on the bucket body 1.

[0027] In the above-mentioned under-dump shovel system, the bottom surface of the bucket body 1 is provided with a wear-resistant plate 11, and the wear-resistant plate 11 is provided with bucket teeth 12.

[0028] In the above-mentioned under-dump shovel system, a hydraulic cylinder connecting frame 13 is provided on the outer side of the bucket body 1; the hydraulic cylinder connecting frame 13 is located between the pin frame I6 and the pin frame II7, and is hinged to the front end of the side-dump hydraulic cylinder 4.

[0029] In the above-mentioned under-floor side-discharge shovel system, lifting rings 14 are provided on the outer side of the bucket body 1 and the outer side of the cylinder connecting frame 13 to facilitate the hoisting of the bucket body 1.

[0030] In the above-mentioned under-floor side-discharge shovel system, the rear end of the connecting frame 2 is provided with a connecting part 15 that cooperates with the quick-change device.

[0031] When the above-mentioned undercarriage machine side-discharge shovel system is working, the piston of the side-discharge cylinder 4 extends, the bucket body 1 is pushed out for unloading, the piston of the side-discharge cylinder 4 retracts, the bucket body 1 returns to its original position, the pin holder II7 is locked outside the pin cylinder II9, and collisions and impacts will occur between the bucket body 1 and the connecting frame 2, and between the pin holder II7 and the pin cylinder II9. In order to achieve buffering, the following hydraulic control circuit is also designed in this embodiment.

[0032] The aforementioned underfloor side-discharge shovel system also includes a hydraulic oil tank 16, a hydraulic pump 17, a three-position four-way directional valve 18, a two-position three-way directional valve 19, an accumulator 20, a switching valve 21, a proximity switch 22, and a controller 23. The inlet of the hydraulic pump 17 is connected to the hydraulic oil tank 16, and the outlet of the hydraulic pump 17 is connected to the P port of the three-position four-way directional valve 18. The A port of the three-position four-way directional valve 18 is connected to the rod chamber of the side-discharge cylinder 4, and the rodless chamber of the side-discharge cylinder 4 is connected to the A port of the two-position three-way directional valve 19. The P port of 19 is connected to the B port of the three-position four-way directional valve 18. The T port of the three-position four-way directional valve 18 is connected back to the hydraulic oil tank 16. The T port of the two-position three-way directional valve 19, the interface of the accumulator 20, and the A port of the switching valve 21 are connected together. The B port of the switching valve 21 is connected back to the hydraulic oil tank 16. The proximity switch 22 is used to detect the distance between the bucket body 1 and the connecting frame 2. The control terminals of the three-position four-way directional valve 18, the two-position three-way directional valve 19, the switching valve 21, and the proximity switch 22 are all connected to the controller 23.

[0033] Under normal conditions, the three-position four-way directional valve 18 is in the middle position (P, T, A, and B ports are all closed), the two-position three-way directional valve 19 is in the left position (P port is closed, A and T ports are connected), and the switch valve 21 is in the left position (A and B ports are connected). When the bucket body 1 is unloading, the controller 23 controls the three-position four-way directional valve 18 to be in the left position (P and B ports are connected, T and A ports are connected), and the two-position three-way directional valve 19 to be in the right position (P and A ports are connected, T port is closed). The working oil is pumped by the hydraulic pump 17 to the P port of the three-position four-way directional valve 18, enters the P port of the two-position three-way directional valve 19 from the B port of the three-position four-way directional valve 18, and enters the rodless chamber of the side unloading cylinder 4 from the A port of the two-position three-way directional valve 19, pushing the piston to extend. The working oil in the rod chamber of the side unloading cylinder 4 flows back to the hydraulic oil tank 16 from the A and T ports of the three-position four-way directional valve 18. When the bucket body 1 is reset and the starting distance of the proximity switch 22 has not been reached, the controller 23 controls the three-position four-way directional valve 18 to be in the right position (P port connected to A port, T port connected to B port), and the two-position three-way directional valve 19 to be in the left position (P port closed, A port connected to T port). The working oil is pumped by the hydraulic pump 17 to the P port of the three-position four-way directional valve 18, and enters the rod chamber of the side unloading cylinder 4 through the A port of the three-position four-way directional valve 18. The working oil in the rodless chamber of the side unloading cylinder 4 enters the T port through the A port of the two-position three-way directional valve 19, and then enters the rod chamber through the opening... The oil flows back to the hydraulic tank 16 through ports A and B of valve 21, enabling rapid piston retraction. When the distance between the bucket body 1 and the connecting frame 2 reaches the activation distance of proximity switch 22, proximity switch 22 is activated. Controller 23 receives the signal and controls switch valve 21 to the right position (ports A and B are disconnected). The working oil in the rodless chamber of the side unloading cylinder 4 flows into the accumulator 20 from port T of the two-position three-way directional valve 19, slowing down the piston retraction speed and reducing the collision impact between the bucket body 1 and the connecting frame 2, and between the pin holder II 7 and the pin holder II 9. After the bucket body 1 is reset, controller 23 controls the three-position four-way directional valve 18 to the middle position and switch valve 21 to the left position. The working oil in the accumulator 20 flows back to the hydraulic tank 16 through switch valve 21.

[0034] The aforementioned undercarriage side-discharge shovel system also includes an overflow valve 24; the inlet of the overflow valve 24, the T port of the two-position three-way directional valve 19, the interface of the accumulator 20, and the A port of the switching valve 21 are connected together, and the outlet of the overflow valve 24 is connected back to the hydraulic oil tank 16. During the slow retraction of the piston, when the oil pressure in the hydraulic control circuit exceeds the safety value, it flows back to the hydraulic oil tank 16 from the overflow valve 24.

[0035] The aforementioned undercarriage side-discharge shovel system also includes an inlet oil filter 25, an inlet oil check valve 26, a return oil filter 27, a return oil check valve 28, and a hydraulic pump drive motor 29. The hydraulic oil tank 16 is connected to the inlet of the inlet oil filter 25, the outlet of the inlet oil filter 25 is connected to the inlet of the inlet oil check valve 26, and the outlet of the inlet oil check valve 26 is connected to the inlet of the hydraulic pump 17. The T port of the three-position four-way directional valve 18, the B port of the switching valve 21, and the outlet of the overflow valve 24 converge and are connected to the inlet of the return oil check valve 28. The outlet of the return oil check valve 28 is connected to the inlet of the return oil filter 27, and the outlet of the return oil filter 27 is connected back to the hydraulic oil tank 16. The hydraulic pump drive motor 29 is connected to the hydraulic pump 17 and is controlled by the controller 23 to drive the hydraulic pump 17 to work.

[0036] By installing a check valve and a filter, the backflow of the working oil is prevented, and the working oil is filtered to keep it clean.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A side-discharge shovel and conveyor system for a horizontal-bottom machine, characterized in that, It includes the bucket body (1), connecting frame (2), connecting pin (3), side unloading cylinder (4) and side baffle (5); The back of the bucket body (1) is provided with pin holder I (6) and pin holder II (7). The connecting frame (2) is provided with pin cylinder I (8) and pin cylinder II (9) on both sides. Pin cylinder I (8) is used to engage with pin cylinder frame I (6), and pin cylinder II (9) is used to engage with pin cylinder frame II (7). The connecting pin (3) passes through the snap-fit ​​pin holder I (6) and pin holder I (8), so that the bucket body (1) and the connecting frame (2) are rotatably connected; The front end of the side unloading cylinder (4) is hinged to the outside of the bucket body (1) and is located on the axis of symmetry of pin holder I (6) and pin holder II (7); The rear end of the side unloading cylinder (4) is hinged to the connecting frame (2) and is located between pin cylinder I (8) and pin cylinder II (9); The side baffle (5) is set on the same side as the pin holder II (7) and the pin holder II (9), and closes the opening of the bucket body (1) located on the side of the pin holder II (7).

2. The undercarriage machine side-discharge shovel system according to claim 1, characterized in that, It also includes a deflector plate (10); The guide plate (10) is set on the same side as the pin holder I (6) and the pin holder I (8), and is connected to the opening of the bucket body (1) on the side of the pin holder I (6).

3. The undercarriage machine side-discharge shovel system according to claim 2, characterized in that, The side baffle (5) and the guide plate (10) are both connected to the bucket body (1) by bolts.

4. The undercarriage machine side-discharge shovel system according to claim 3, characterized in that, The bottom surface of the bucket body (1) is provided with a wear-resistant plate (11), and the wear-resistant plate (11) is provided with bucket teeth (12).

5. The undercarriage machine side-discharge shovel system according to claim 4, characterized in that, A hydraulic cylinder connecting frame (13) is provided on the outside of the bucket body (1); The cylinder connecting frame (13) is located between the pin holder I (6) and the pin holder II (7) and is hinged to the front end of the side unloading cylinder (4).

6. The undercarriage machine side-discharge shovel system according to claim 5, characterized in that, Lifting rings (14) are provided on the outer side of the bucket body (1) and the outer side of the hydraulic cylinder connecting frame (13).

7. The undercarriage machine side-discharge shovel system according to claim 1, characterized in that, The rear end of the connecting frame (2) is provided with a connecting piece (15) that cooperates with the quick-change device.

8. The undercarriage machine side-discharge shovel system according to claim 1, characterized in that, It also includes a hydraulic tank (16), a hydraulic pump (17), a three-position four-way directional valve (18), a two-position three-way directional valve (19), an accumulator (20), a switching valve (21), a proximity switch (22), and a controller (23). The inlet of the hydraulic pump (17) is connected to the hydraulic oil tank (16), the outlet of the hydraulic pump (17) is connected to the P port of the three-position four-way directional valve (18), the A port of the three-position four-way directional valve (18) is connected to the rod chamber of the side unloading cylinder (4), the rodless chamber of the side unloading cylinder (4) is connected to the A port of the two-position three-way directional valve (19), the P port of the two-position three-way directional valve (19) is connected to the B port of the three-position four-way directional valve (18), the T port of the three-position four-way directional valve (18) is connected back to the hydraulic oil tank (16), the T port of the two-position three-way directional valve (19), the interface of the accumulator (20) and the A port of the switch valve (21) are connected together, and the B port of the switch valve (21) is connected back to the hydraulic oil tank (16). The proximity switch (22) is used to detect the distance between the bucket body (1) and the connecting frame (2); The control terminals of the three-position four-way directional valve (18), the two-position three-way directional valve (19), the switching valve (21), and the proximity switch (22) are all connected to the controller (23).

9. The undercarriage machine side-discharge shovel system according to claim 8, characterized in that, It also includes an overflow valve (24); The inlet of the overflow valve (24), the T port of the two-position three-way directional valve (19), the interface of the accumulator (20) and the A port of the switching valve (21) are connected together, and the outlet of the overflow valve (24) is connected back to the hydraulic oil tank (16).

10. The undercarriage machine side-discharge shovel system according to claim 9, characterized in that, It also includes an inlet filter (25), an inlet check valve (26), a return filter (27), a return check valve (28), and a hydraulic pump drive motor (29). The hydraulic oil tank (16) is connected to the inlet of the oil inlet filter (25), the outlet of the oil inlet filter (25) is connected to the inlet of the oil inlet check valve (26), and the outlet of the oil inlet check valve (26) is connected to the inlet of the hydraulic pump (17). The T port of the three-position four-way directional valve (18), the B port of the switching valve (21), and the outlet of the relief valve (24) converge and are connected to the inlet of the return oil check valve (28). The outlet of the return oil check valve (28) is connected to the inlet of the return oil filter (27), and the outlet of the return oil filter (27) is connected back to the hydraulic oil tank (16). The hydraulic pump drive motor (29) is controlled by the controller (23) to drive the hydraulic pump (17) to work.

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