Walking device

Abstract

The application provides a walking device, comprising: a moving assembly movably arranged along a predetermined track; an oil guiding assembly connected with the moving assembly, lubricating oil being provided into the moving assembly through the oil guiding assembly; a lifting assembly connected with the moving assembly, the lifting assembly being moved by the moving assembly; at least part of the lifting assembly being movably arranged along a vertical direction, a bearing platform being arranged on the lifting assembly, the bearing platform being driven to lift by the lifting assembly. The application solves the problem of the walking device of the coal mining machine in the prior art, which is not easy to lubricate and has low flexibility.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mining device, in particular to a walking device. BACKGROUND

[0002] At present, the coal mining machine is a direct device for coal mining at home and abroad, mainly composed of a cutting part and a walking part, etc., the cutting part is responsible for breaking coal and loading coal, and the walking part is responsible for driving the coal mining machine to move on the working face.

[0003] The current high-power coal mining machine generally moves on the track by guiding the sliding shoe when moving, however, with the continuous operation of the high-power coal mining machine, the gear transmission meshing system inside the walking part and the guide sliding shoe and the track are seriously worn, and it is necessary to frequently inject lubricating oil to meet the normal displacement operation of the high-power coal mining machine, but the lubricating oil often needs to be manually injected during shutdown, which is extremely inconvenient, and it is difficult to ensure that the lubricating oil uniformly contacts the meshing part of the gear and the inner surface of the bearing, which is easy to cause the oil to seep out from the gap of the gear meshing and the surface of the bearing, thereby causing waste of oil and increasing the limitations and difficulty of oil injection maintenance of the gear and bearing.

[0004] In addition, when the coal mining machine is used for mining thin coal seams, the angle and height of the cutting device are generally changed by the rocker arm to change the thickness of the coal seam mining, but the angle adjustment range of the rocker arm is large, which increases the inclination angle of the device and reduces the stability of the device operation, and the height adjustment is only made by the cutting device, which limits the adjustment range of the thin coal seam mining and reduces the controllability and flexibility of the device. SUMMARY

[0005] The main purpose of the present application is to provide a walking device to solve the problem of low flexibility and difficulty in lubrication of the walking device of the coal mining machine in the prior art.

[0006] In order to achieve the above purpose, the present application provides a walking device, comprising: a moving assembly movably arranged along a predetermined track; an oil guiding assembly connected with the moving assembly, lubricating liquid is provided to the moving assembly through the oil guiding assembly; a lifting assembly connected with the moving assembly, the lifting assembly is moved by the moving assembly; at least part of the lifting assembly is movably arranged in the vertical direction, a bearing table is arranged on the lifting assembly, and the bearing table is driven to lift by the lifting assembly.

[0007] Further, the lifting assembly comprises: a moving block movably arranged in the horizontal direction; a connecting piece, both ends of the connecting piece are hinged with the moving block and the bearing table respectively, the connecting piece is moved by the moving block to push the bearing table to lift.

[0008] Further, the lifting assembly further comprises a transmission rod arranged in a horizontal direction, and the moving block is arranged on the transmission rod and moves along the extension direction of the transmission rod.

[0009] Further, the transmission rod is provided with external threads, and the moving block is sleeved on the transmission rod and threadedly matched with the transmission rod.

[0010] Further, the walking device further comprises a walking seat, at least part of the lifting assembly is arranged on the walking seat, and the walking seat is provided with a guide space; the lifting assembly further comprises a guide component inserted into the guide space and connected with the bearing table, and the guide component is telescopically arranged in a vertical direction.

[0011] Further, the moving assembly comprises a driving gear set, a transmission shaft, the driving gear set is sleeved on the transmission shaft, the transmission shaft is provided with an oil guide space, and an oil guide component is in communication with the oil guide space; the transmission shaft is provided with a drainage port in communication with the oil guide space, and oil in the oil guide space flows to the driving gear set through the drainage port.

[0012] Further, the drainage port is a plurality of groups, and the plurality of groups of drainage ports are arranged at intervals along the axis direction of the transmission shaft.

[0013] Further, the oil guide component comprises a guide sleeve ring sleeved on the transmission shaft and opposite to the drainage port, the guide sleeve ring is in contact with a bearing component on the transmission shaft; the guide sleeve ring is provided with an oil storage space opposite to the bearing component, and the oil storage space supplies oil to the bearing component.

[0014] Further, the guide sleeve ring comprises a first ring segment and a second ring segment in communication with each other, a step structure is arranged between the first ring segment and the second ring segment, the first ring segment is sleeved on the transmission shaft, and the oil storage space is arranged in the second ring segment.

[0015] Further, the moving assembly comprises a moving wheel rotatably arranged around its own axis to walk on the track, a gear box, the gear box is provided with a driving gear set, and an oil guide component is in communication with the driving gear set, and a brush wheel arranged below the gear box, the brush wheel is rotatably arranged around its own axis, the brush wheel is provided with a brush body, and at least part of the brush body is in contact with the track to brush lubricating oil on the track.

[0016] According to the technical solution of this invention, the traveling device includes a moving component, an oil guiding component, and a lifting component. The moving component is movably arranged along a predetermined trajectory. The oil guiding component is connected to the moving component and provides lubricating fluid to the moving component. The lifting component is connected to the moving component and drives the lifting component to move. At least a portion of the lifting component is movably arranged in the vertical direction, and a support platform is provided on the lifting component. The support platform is driven to rise and fall by the lifting component. Specifically, the target workpiece is placed on the support platform. Taking a coal mining machine as an example, the coal mining machine is placed on the support platform, and the lifting component drives the coal mining machine to rise and fall. Simultaneously, during the movement of the moving component, the oil guiding component continuously provides lubricating fluid to the moving component to lubricate it, improving the flexibility control of the traveling device and facilitating the lubrication of the moving component. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0018] Figure 1 A first-view structural schematic diagram of the walking device according to the present invention is shown;

[0019] Figure 2 A second-view structural schematic diagram of the walking device according to the present invention is shown.

[0020] Figure 3 A schematic diagram of the lifting assembly of the walking device according to the present invention is shown;

[0021] Figure 4 A schematic diagram of the structure of the moving component of the walking device according to the present invention is shown;

[0022] Figure 5 It shows that according to Figure 4 Enlarged view of part A;

[0023] Figure 6 A schematic diagram of the guide collar of the walking device according to the present invention is shown; and

[0024] Figure 7 A schematic diagram of the rotating shaft of the walking device according to the present invention is shown.

[0025] The above figures include the following reference numerals:

[0026] 1, walking seat; 10, guide space; 5, moving assembly; 3, oil guide assembly; 4, lifting assembly; 41, bearing table; 48, moving block; 45, connecting piece; 47, transmission rod; 44, guide component; 57, drive gear set; 59, transmission shaft; 511, drainage port; 510, guide ring; 512, oil storage space; 58, bearing component; 513, first ring segment; 514, second ring segment; 55, moving wheel; 524, brush wheel;

[0027] 2, controller; 31, oil storage tank; 32, oil pump; 33, oil guide pipeline; 42, supporting leg; 43, supporting bracket; 46, hydraulic cylinder; 49, bevel gear set; 410, servo motor; 51, walking part; 52, guide component; 521, guide shoe; 522, pinion; 523, movable shaft; 525, limit wheel; 53, belt transmission component; 54, driver; 56, rotating shaft. DETAILED DESCRIPTION

[0028] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0029] Please refer to Figures 1 to 7 The present application provides a walking device, comprising: a moving assembly 5 movably arranged along a predetermined track; an oil guide assembly 3 connected with the moving assembly 5, providing lubricating liquid into the moving assembly 5 through the oil guide assembly 3; a lifting assembly 4 connected with the moving assembly 5, moving the lifting assembly 4 through the moving assembly 5; at least part of the lifting assembly 4 is movably arranged along the vertical direction, and a bearing table 41 is arranged on the lifting assembly 4, driving the bearing table 41 to lift through the lifting assembly 4.

[0030] The walking device provided by the present application comprises a moving assembly 5, an oil guide assembly 3 and a lifting assembly 4, the moving assembly 5 is movably arranged along a predetermined track; the oil guide assembly 3 is connected with the moving assembly 5, providing lubricating liquid into the moving assembly 5 through the oil guide assembly 3; the lifting assembly 4 is connected with the moving assembly 5, moving the lifting assembly 4 through the moving assembly 5; at least part of the lifting assembly 4 is movably arranged along the vertical direction, and a bearing table 41 is arranged on the lifting assembly 4, driving the bearing table 41 to lift through the lifting assembly 4. Among them, the target workpiece is placed on the bearing table 41, taking the coal mining machine as an example, the coal mining machine is placed on the bearing table 41, and the coal mining machine is driven to lift through the lifting assembly 4, and at the same time in the moving process of the moving assembly 5, the oil guide assembly 3 continuously provides lubricating liquid into the moving assembly 5 to lubricate the moving assembly 5, thereby improving the control flexibility of the walking device and facilitating the lubrication of the moving assembly 5.

[0031] Specifically, the lifting assembly 4 comprises a moving block 48 movably arranged in a horizontal direction, and a connecting piece 45 hingedly connected to the moving block 48 and the bearing table 41 at two ends thereof, the connecting piece 45 being driven to move by the moving block 48 to push the bearing table 41 to lift. The structure is simple, and the overall structure is more compact by hingedly connecting the connecting piece 45 to the moving block 48 and the bearing table 41.

[0032] The lifting assembly 4 further comprises a transmission rod 47 arranged in a horizontal direction, the moving block 48 being arranged on the transmission rod 47 and moving along the extension direction of the transmission rod 47. The transmission rod 47 is provided with external threads, and the moving block 48 is sleeved on the transmission rod 47 and threadedly cooperates with the transmission rod 47. Preferably, the transmission rod 47 is a bidirectional screw rod, and the lifting assembly 4 further comprises a servo motor 410 and a bevel gear set 49, the bevel gear set 49 being sleeved on the transmission rod 47, and the servo motor 410 being drivingly connected to the bevel gear set 49 to drive the transmission rod 47 to rotate, the bevel gear set 49 being adopted herein to reduce the overall height of the walking device, so that the lifting assembly 4 has a larger lifting stroke. Preferably, the moving block 48 is two, the two moving blocks 48 being threadedly connected to the transmission rod 47, and the connecting piece 45 is two, the two connecting pieces 45 being correspondingly arranged with the two moving blocks 48, so that the bearing table 41 is kept balanced during lifting.

[0033] In the specific implementation process, as shown in Figure 2 The walking device further comprises a walking seat 1, at least part of the lifting assembly 4 being arranged on the walking seat 1, and the walking seat 1 being provided with a guide space 10; the lifting assembly 4 further comprises a guide component 44 inserted into the guide space 10 and connected to the bearing table 41, the guide component 44 being telescopically arranged in a vertical direction. The guide component 44 guides the bearing table 41 during lifting.

[0034] Specifically, the lifting assembly 4 further comprises a supporting leg 42, a supporting bracket 43 and a hydraulic cylinder 46. The supporting leg 42 is arranged at both ends of the bearing table 41 to support the bearing table 41. The supporting bracket 43 is arranged at a side of the supporting leg 42 away from the bearing table 41 and connected with the supporting leg 42. The guide component 44 is connected with the supporting bracket 43. The connecting piece 45 is hinged with the supporting bracket 43. The hydraulic cylinder 46 is arranged at the middle part of the walking base 1 and connected with the bearing table 41. In use, the hydraulic cylinder 46 pushes the bearing table 41 to rise, while the connecting piece 45 drives the supporting bracket 43 to push the two ends of the bearing table 41 to rise through the supporting leg 42. The guide component 44 is always connected with the supporting bracket 43 to provide a guiding effect and auxiliary support, thereby enhancing the stability of the coal seam mining. Preferably, the bottom of the supporting leg 42 is provided with a buffer plate, and the top of the supporting bracket 43 is provided with an anti-skid layer abutting against the buffer plate. In this way, the buffer force and anti-skid efficiency of the contact between the supporting bracket 43 and the supporting leg 42 are improved.

[0035] In the embodiment provided by the present application, the moving assembly 5 comprises a driving gear set 57 and a transmission shaft 59. The driving gear set 57 is sleeved on the transmission shaft 59. An oil guiding space is arranged in the transmission shaft 59. The oil guiding assembly 3 is in communication with the oil guiding space. The transmission shaft 59 is provided with a drainage port 511 in communication with the oil guiding space. The oil in the oil guiding space flows to the driving gear set 57 through the drainage port 511. In this way, the device is automatically lubricated in the working state, avoiding the need for device maintenance downtime, increasing the convenience of device walking maintenance and the working efficiency of thin coal seam mining.

[0036] In actual application, the driving gear set 57 is installed in a gear box. The oil guiding space and the drainage port 511 are arranged on the transmission shaft 59. When the lubricating oil is drained into the oil guiding space, the centrifugal force generated in the rotating process of the transmission shaft 59 is used to throw the oil out of the gear box through the drainage port 511. Further, the oil will drip on the driving gear set 57 to lubricate the driving gear set 57. Preferably, the drainage port 511 is in multiple groups. The multiple groups of drainage ports 511 are arranged along the axial direction of the transmission shaft 59. Each group of drainage ports 511 comprises multiple unit drainage ports. The multiple unit drainage ports are arranged along the circumferential direction of the transmission shaft 59.

[0037] Further, the oil guiding assembly 3 comprises a guide sleeve ring 510 sleeved on the transmission shaft 59 and opposite to the drainage port 511. The guide sleeve ring 510 abuts against the bearing component 58 on the transmission shaft 59. The guide sleeve ring 510 is provided with an oil storage space 512 opposite to the bearing component 58. The oil storage space 512 is used to supply oil to the bearing component 58. In use, the oil is thrown out of the inner wall surface of the guide sleeve ring 510 through the drainage port 511. The oil storage space 512 is used to store the lubricating oil. In this way, the bearing component 58 can be continuously supplied with oil.

[0038] In the embodiment, the guide ring 510 comprises a first ring segment 513 and a second ring segment 514 which are in communication with each other, and a step structure is arranged between the first ring segment 513 and the second ring segment 514. The first ring segment 513 is sleeved on the transmission shaft 59, and the oil storage space 512 is arranged in the second ring segment 514. Preferably, the inner diameter of the second ring segment 514 is larger than the inner diameter of the first ring segment 513, and the oil storage space 512 of the second ring segment 514 is used to lubricate the inner side of the shaft sleeve and the inner ring of the bearing part 58 based on the lubrication time.

[0039] The moving assembly 5 comprises a moving wheel 55 which is rotatably arranged around its own axis to walk on the track, a gear box in which a driving gear set 57 is arranged, and the oil guide assembly 3 is in communication with the driving gear set 57. A brush wheel 524 is arranged below the gear box, and the brush wheel 524 is rotatably arranged around its own axis. A brush body is arranged on the brush wheel 524, and at least a part of the brush body is in contact with the track to brush the lubricating oil on the track. In actual use, due to the poor sealing of the gear box, the oil in the gear box will drip on the track to cause oil waste. By arranging the brush wheel 524, the oil leaked from the gear box is brushed on the track, which plays a lubricating role between the moving wheel 55 and the track.

[0040] In the embodiment, the oil guide assembly 3 comprises an oil storage tank 31, an oil pump 32 and an oil guide pipeline 33. The oil storage tank 31 is arranged on the top of the walking base, the oil storage tank 31 is in communication with the oil pump 32, and the two ends of the oil guide pipeline 33 are in communication with the oil pump 32 and the oil guide space respectively. The outlet end of the oil guide pipeline 33 is provided with a sealing rotating ring, so that the transmission shaft 59 can rotate relative to the oil guide pipeline 33 under the action of the sealing rotating ring, so that the oil can be normally guided and circulated while being structurally engaged to drive the device to walk. The sealing rotating ring comprises a first ring body and a second ring body which are connected to each other and in communication with each other. The first ring body is arranged on the oil guide pipeline 33, and the second ring body is arranged on the transmission shaft 59. The first ring body and the second ring body rotate relative to each other, so that the transmission shaft 59 can continuously rotate without affecting the continuous input of oil into the oil guide space by the oil guide pipeline 33.

[0041] In the embodiment, the oil guide pipeline 33 is arranged on the transmission shaft 59, and the oil guide pipeline 33 is in communication with the oil storage tank 31 and the oil guide space. Figure 3 and Figure 4As shown, the moving assembly 5 is arranged on the walking base 1, and the moving assembly 5 further comprises a guide component 52, a belt transmission component 53, a driver 54 and a rotating shaft 56, the walking parts 51 are in multiple groups, the multiple groups of walking parts 51 are arranged at intervals along the circumference of the walking base 1, the walking part 51 comprises a bearing component 58 and a transmission shaft 59, the bottom of the walking part 51 is provided with the rotating shaft 56, the driving gear set 57 comprises multiple-stage transmission gears, the multiple-stage transmission gears are respectively sleeved on the transmission shaft 59 and the rotating shaft 56, the driver 54 is arranged at the middle part of the walking base 1, the output end of the driver 54 is provided with the belt transmission component 53, and the belt transmission component 53 is drivingly connected with the transmission shaft 59. The guide component 52 comprises a guide sliding shoe 521, a pinion 522, a movable shaft 523, a brush wheel 524 and a limiting wheel 525, the guide sliding shoe 521 is sleeved on the bottom of the walking part 51, the movable shaft 523 is sleeved on the side of the guide sliding shoe 521, the movable shaft 523 is sequentially sleeved with the pinion 522, the brush wheel 524 and the limiting wheel 525, and the pinion 522 is in meshing engagement with the driving gear set 57.

[0042] With the walking movement of the guide sliding shoe 521 and the moving wheel 55 on the track, the pinion 522 and the movable shaft 523 can be driven to rotate simultaneously in cooperation with the meshing linkage of the driving gear set 57, at this time, the oil liquid seeped from the upper walking part 51 is received and guided to the brush wheel 524 or the surface of the track by the guide sliding shoe 521, and the track is brushed along with the rotation of the brush wheel 524, so that the seeped oil liquid is reused, and the track is lubricated and maintained, and the auxiliary rotation of the limiting wheel 525 can enhance the stability of the overall walking movement of the bottom surface of the guide sliding shoe 521 and the bearing capacity of the structure.

[0043] Specifically, the bottom of the walking base 1 is provided with a controller 2, the lifting assembly 4, the oil guide assembly 3 and the moving assembly 5 are connected with the controller 2, and the mutual cooperation of the components is controlled by the controller 2.

[0044] From the above description, it can be seen that the above-mentioned embodiments of the present application achieve the following technical effects:

[0045] The walking device provided by the application comprises a moving assembly 5, an oil guiding assembly 3 and a lifting assembly 4, the moving assembly 5 is movably arranged along a predetermined track; the oil guiding assembly 3 is connected with the moving assembly 5, and lubricating oil is provided into the moving assembly 5 through the oil guiding assembly 3; the lifting assembly 4 is connected with the moving assembly 5, and the lifting assembly 4 is moved by the moving assembly 5; at least part of the lifting assembly 4 is movably arranged in a vertical direction, a bearing table 41 is arranged on the lifting assembly 4, and the bearing table 41 is driven to lift by the lifting assembly 4. Wherein, a target workpiece is placed on the bearing table 41, taking a coal mining machine as an example, the coal mining machine is placed on the bearing table 41, and the coal mining machine is driven to lift by the lifting assembly 4, and at the same time, the moving assembly 5 moves, the lubricating oil is continuously provided into the moving assembly 5 by the oil guiding assembly 3 to lubricate the moving assembly 5, the flexibility of the control of the walking device is improved, and the lubrication of the moving assembly 5 is facilitated.

[0046] The above only describes the preferred embodiments of the application and is not used to limit the application. The application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A walking device, characterized in that, include: The movable component (5) is movably set along a predetermined trajectory; The oil guiding assembly (3) is connected to the moving assembly (5) and provides lubricant to the moving assembly (5) through the oil guiding assembly (3); The lifting component (4) is connected to the moving component (5), and the moving component (5) drives the lifting component (4) to move. At least a portion of the lifting assembly (4) is movably arranged in the vertical direction, and a support platform (41) is provided on the lifting assembly (4), and the support platform (41) is driven to rise and fall by the lifting assembly (4); The moving component (5) includes: a drive gear set (57); a transmission shaft (59), the drive gear set (57) being sleeved on the transmission shaft (59), an oil guiding space being provided inside the transmission shaft (59), and the oil guiding component (3) communicating with the oil guiding space; the transmission shaft (59) is provided with a drain port (511) communicating with the oil guiding space, and the oil in the oil guiding space flows to the drive gear set (57) through the drain port (511); The oil guiding assembly (3) includes: a guide collar (510), which is sleeved on the drive shaft (59) and opposite to the drain port (511), and the guide collar (510) is in contact with the bearing component (58) on the drive shaft (59); the guide collar (510) is provided with an oil storage space (512), which is opposite to the bearing component (58), and oil is supplied to the bearing component (58) through the oil storage space (512); The oil guiding assembly (3) includes an oil pump (32) and an oil guiding pipe (33). The two ends of the oil guiding pipe (33) are respectively connected to the oil pump (32) and the oil guiding space. The outlet end of the oil guiding pipe (33) is provided with a sealing ring so that the drive shaft (59) can rotate relative to the oil guiding pipe (33).

2. The walking device according to claim 1, characterized in that, The lifting assembly (4) includes: A movable block (48) is movably disposed in the horizontal direction; The connector (45) is hinged at both ends to the moving block (48) and the support platform (41) respectively. The moving block (48) drives the connector (45) to move, so that the connector (45) pushes the support platform (41) to rise and fall.

3. The walking device according to claim 2, characterized in that, The lifting assembly (4) also includes: The transmission rod (47) is arranged in a horizontal direction, and the moving block (48) is arranged on the transmission rod (47). The moving block (48) moves along the extension direction of the transmission rod (47).

4. The walking device according to claim 3, characterized in that, The transmission rod (47) is provided with an external thread, and the moving block (48) is sleeved on the transmission rod (47) and threadedly engaged with the transmission rod (47).

5. The walking device according to claim 1, characterized in that, The walking device also includes: The walking seat (1) has at least a portion of the lifting assembly (4) disposed on the walking seat (1), and the walking seat (1) has a guide space (10). The lifting assembly (4) also includes: A guide component (44) is inserted into the guide space (10) and connected to the support platform (41). The guide component (44) is extendable in the vertical direction.

6. The walking device according to claim 1, characterized in that, The drainage port (511) is in multiple sets, and the multiple sets of drainage ports (511) are spaced apart along the axial direction of the drive shaft (59).

7. The walking device according to claim 1, characterized in that, The guide collar (510) includes a first ring segment (513) and a second ring segment (514) that are interconnected. A stepped structure is provided between the first ring segment (513) and the second ring segment (514). The first ring segment (513) is sleeved on the drive shaft (59), and the oil storage space (512) is located in the second ring segment (514).

8. The walking device according to any one of claims 1 to 5, characterized in that, The moving component (5) includes: The movable wheel (55) is rotatably arranged about its own axis so as to move on the track; A gearbox, wherein a drive gear set (57) is provided inside the gearbox, and the oil guide assembly (3) is connected to the drive gear set (57); A brush wheel (524) is disposed below the gearbox. The brush wheel (524) is rotatably disposed about its own axis. A brush body is disposed on the brush wheel (524). At least part of the brush body is in contact with the track to brush lubricating oil onto the track.

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