A six-arm roofbolter

Abstract

The application discloses a six-arm anchor rod drilling rig, relates to the technical field of anchor rod supporting equipment for coal mining, and comprises a caterpillar walking chassis, an anchor protection unit and an automatic net feeding device. The anchor protection unit comprises a lifting platform and a rotary anchor protection platform. The lifting platform is fixedly arranged on the caterpillar walking chassis. The rotary anchor protection platform comprises a front rotary platform and a rear moving platform. The front rotary platform is fixedly connected with the output end of a first rotary speed reducer. Three top anchor drills are arranged on the front rotary platform and the rear moving platform respectively. The automatic net feeding device comprises a frame, a net piece warehouse, a net piece suction disc and two lifting and overturning mechanisms which are parallel and arranged at intervals. The frame is fixedly connected with the caterpillar walking chassis. Permanent magnets are arranged on the net piece suction disc. Each lifting and overturning mechanism comprises a sliding rail, a sliding seat, a lower sleeve, an upper sleeve, a first connecting rod, a second connecting rod and a hinged seat. The application can effectively improve the operation efficiency of anchor rod supporting in coal mines.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal mining anchor protection equipment, in particular to a six-arm anchor rod drill rig. BACKGROUND

[0002] At present, the coal mine mainly adopts the anchor rod supporting process, drills anchor rod holes or anchor cable holes on the inner wall of the coal mining roadway, and thus installs anchor rod or anchor cable supporting devices, therefore, the hydraulic anchor rod drill rig for coal mine is an important coal mine anchor protection device. For part of the tunneling roadway, the head-on support is adopted by entering from the tunneling equipment, generally a two-arm anchor rod machine is adopted, the volume is relatively narrow, due to the limitation of the anchor protection device, only two rods can be supported at a time, and the large arm needs to be frequently swung, which has certain safety hidden dangers, and is time-consuming and laborious. The six-arm anchor rod drill rig needs the front tunneling equipment to retreat, and then enters the head-on to anchor, which is time-consuming and laborious.

[0003] In the existing anchor rod drill rig, most of them adopt the method of fixing the platform on the tracked walking chassis, the platform can realize simple vertical lifting function, and is provided with sliding rails for carrying the anchor rod drill machine, according to different conditions of the used roadway, the drill machine can be arranged as two arms to multiple arms, however, according to the complex conditions of the roadway, in fact, there are still problems such as the need for the anchor rod drill rig to frequently reverse and the inability to consider both the side and the fixed side.

[0004] In addition, the current underground support equipment still has the following defects:

[0005] (1) At present, the existing multi-arm anchor rod machine has a relatively wide width, and the normal roadway width cannot simultaneously satisfy the error machine entering the head-on operation with the fully mechanized coal mining machine, which leads to the fact that the fully mechanized coal mining face cannot realize anchor rod supporting mechanization and automation, and can only rely on the single anchor rod drill machine to complete the support by manual work, which is time-consuming and laborious and has poor safety;

[0006] (2) After the width of the anchor rod machine is narrowed, the normal roadway width cannot simultaneously satisfy the error machine entering the head-on operation with the fully mechanized coal mining machine, but due to the limitation of the narrow machine body, only single-arm or double-arm arrangement can be achieved, and multiple drill arms and multiple parallel operations cannot be achieved, the number of anchor rods supported at one time is small, which is time-consuming and laborious;

[0007] (3) The drill arm of the existing multi-arm anchor rod machine is usually arranged in single row, and can only support the roof and the side, and cannot support multiple rows of anchor rods, if 3-4 rows of anchor rods need to be supported after the head-on cutting, multiple operations need to be performed to complete the support of the roadway, which is low in efficiency;

[0008] (4) When the anchor rod machine performs the net laying operation, manual anchor net feeding is usually adopted, which needs more manpower and is time-consuming and laborious. SUMMARY

[0009] The purpose of the present application is to provide a six-arm anchor rod drilling rig to solve the problems existing in the prior art and improve the operation efficiency of anchor rod support in coal mines.

[0010] To achieve the above purpose, the present application provides the following solutions.

[0011] The present application provides a six-arm anchor rod drilling rig, which comprises:

[0012] A crawler-type walking chassis;

[0013] An anchor protection unit, which comprises a lifting platform and a rotating anchor protection platform, the lifting platform is fixedly arranged on the crawler-type walking chassis, and a first slewing reducer is arranged on the lifting platform; the rotating anchor protection platform comprises a front rotating platform and a rear moving platform, the bottom end center of the front rotating platform is fixedly connected with the output end of the first slewing reducer, a first sleeve is fixedly arranged on the rear moving platform, a second sleeve is fixedly arranged in the front rotating platform, the first sleeve is partially arranged in the second sleeve, and a first driving device capable of driving the first sleeve to slide along the second sleeve is arranged in the front rotating platform; three top anchor drills are respectively and intervally arranged on the front rotating platform and the rear moving platform;

[0014] An automatic net feeding device, which comprises a rack, a net piece warehouse, a net piece suction disc and two lifting and overturning mechanisms arranged in parallel and at intervals, the rack is fixedly connected with the crawler-type walking chassis; the net piece warehouse comprises a fixed net piece warehouse, the fixed net piece warehouse comprises a horizontal plate and a vertical baffle, one end of the horizontal plate is fixedly connected with the rack, and the bottom end of the vertical baffle is fixedly connected with the other end of the horizontal plate; a permanent magnet is arranged on the net piece suction disc; each lifting and overturning mechanism comprises a sliding rail, a sliding seat, a lower sleeve, an upper sleeve, a first connecting rod, a second connecting rod and a hinged seat, the sliding rail is fixedly arranged on the rack and perpendicular to the vertical baffle, the sliding seat is in sliding fit with the sliding rail, a second driving device is used for driving the sliding seat to slide along the sliding rail, the bottom end of the lower sleeve is fixedly connected with the sliding seat, the upper sleeve is in sliding fit on the lower sleeve, a third driving device for driving the upper sleeve to slide relative to the lower sleeve is arranged in the lower sleeve, the hinged seat is fixedly connected with the net piece suction disc, one end of the first connecting rod is hinged with one end of the hinged seat, a sixth driving device for driving the first connecting rod to rotate is fixedly arranged at the top end of the upper sleeve, one end of the second connecting rod is hinged with the top of the upper sleeve, and the other end of the second connecting rod is hinged with the other end of the hinged seat.

[0015] Preferably, one side support anchor protection step is hinged at each end of the front rotating platform; and a main step is hinged at the side of the rear moving platform away from the front rotating platform.

[0016] Preferably, the anchor protection unit further comprises a roof assembly, the roof assembly comprising two roof mechanisms; each of the roof mechanisms comprises an inner sleeve, an outer sleeve and a roof, the inner sleeve and the outer sleeve are vertically arranged, the roof is horizontally arranged, the bottom end of the inner sleeve is fixedly connected with the front rotating platform, the outer sleeve is slidingly sleeved on the inner sleeve, the inner sleeve is provided with fourth driving devices for driving the outer sleeve to slide relative to the inner sleeve, and one end of the roof is fixedly connected with the top end of the outer sleeve.

[0017] Preferably, the top anchor drilling machine is installed on the front rotating platform or the rear moving platform through a first mounting structure; the first mounting structure comprises a vertical mounting plate, a second rotary reducer, a front-rear swing oil cylinder and a first mounting frame, the bottom end of the vertical mounting plate is fixedly connected with the front rotating platform or the rear moving platform, the second rotary reducer is fixedly arranged on the vertical mounting plate, the first mounting frame is fixedly connected with the output end of the second rotary reducer, the top anchor drilling machine is rotationally connected with the first mounting frame in the corresponding first mounting structure, and one end of the front-rear swing oil cylinder is hingedly connected with the corresponding top anchor drilling machine and the other end is hingedly connected with the first mounting frame.

[0018] Preferably, the screen bin further comprises a left side moving screen bin and a right side moving screen bin which are slidingly matched with the fixed screen bin respectively, the left side moving screen bin and the right side moving screen bin both comprise a side moving bottom plate and a side moving baffle which is fixedly connected with one end of the side moving bottom plate, the side moving bottom plate is slidingly matched with the horizontal plate, and the side moving baffle is close to the vertical baffle; two parallel sliding grooves are arranged on the side moving bottom plate, the length direction of the sliding groove is perpendicular to the length direction of the sliding rail; a pin shaft is arranged on the horizontal plate corresponding to any one sliding groove, the pin shaft penetrates through the corresponding sliding groove, the top end of the pin shaft is fixedly provided with a gland, and the diameter of the gland is greater than the width of the sliding groove; the sliding groove is slidingly matched with the corresponding pin shaft; the left side moving screen bin and the right side moving screen bin both comprise a plurality of limiting rods which are distributed along the length direction of the sliding rail, the bottom end of the limiting rod is fixedly connected with the side moving bottom plate, and the interval between the limiting rod closest to the side moving baffle and the side moving baffle and the interval between any two adjacent limiting rods are greater than or equal to the thickness of the screen to be used.

[0019] Preferably, the mesh suction cups comprise a fixed mesh suction cup and two side-moving mesh suction cups, the hinged seat is fixedly connected with the fixed mesh suction cup, the two side-moving mesh suction cups are respectively in sliding fit with the fixed mesh suction cup, a fifth driving device is arranged on the fixed mesh suction cup corresponding to each side-moving mesh suction cup, and the fifth driving device is used to drive the corresponding side-moving mesh suction cup to slide relative to the fixed mesh suction cup; the two side-moving mesh suction cups can be respectively located on the two sides of the fixed mesh suction cup; the permanent magnets are arranged on the two side-moving mesh suction cups respectively; and the upper slide rail and the lower slide rail are arranged on the fixed mesh suction cup corresponding to each side-moving mesh suction cup, and the side-moving mesh suction cup is in sliding fit with the corresponding upper slide rail and lower slide rail.

[0020] Preferably, a rack is arranged on the slide rail, the length direction of the rack is the same as the length direction of the slide rail, the second driving device is a driving motor fixedly arranged on the slide seat, and a driving gear meshing with the rack is fixedly arranged on the output shaft of the second driving device.

[0021] Preferably, a first electromagnetic proximity switch is arranged at the end of the slide rail away from the vertical baffle, a second electromagnetic proximity switch is arranged at the middle of the slide rail, the first electromagnetic proximity switch and the second electromagnetic proximity switch are respectively electrically connected with the control system, and the control system is used to control the opening and closing of the second driving device, the third driving device and the fifth driving device.

[0022] Preferably, the first driving device, the third driving device, the fourth driving device and the fifth driving device all adopt hydraulic cylinders; and the lifting platform adopts a scissor-type lifting platform.

[0023] Preferably, the sixth driving device adopts a rotary oil cylinder, and the other end of the first connecting rod is fixedly connected with the output shaft of the rotary oil cylinder.

[0024] The present application has the following technical effects relative to the prior art:

[0025] The six-arm anchor rod drilling rig of the present application can effectively improve the operation efficiency of anchor rod support in coal mines.

[0026] Specifically, the six-arm anchor rod drilling rig of the present application can support multiple anchor rods at a time, and can narrow the body as needed; in the retracted state, it can walk in the roadway and other equipment, and in the unfolded working state, it can support anchor rods on multiple rows of anchor rod tops and on the side slope. The problem of low and lagging anchor support efficiency in the current tunneling roadway is solved, the anchor support efficiency is improved, and the intelligent and labor reduction trend is met.

[0027] The six-arm anchor rod drill carriage of the present application can simultaneously perform the supporting operation by the front and rear anchor protection drill machines, and the row distance can be adjusted in the range of 600-1000 mm. The problem of lag of the side anchor rod support when the roof anchor is punched is solved.

[0028] The automatic net feeding device of the six-arm anchor rod drill carriage of the present application only needs to manually place the net, and the net feeding device can automatically feed the anchor net to the front working platform, thereby saving manpower and material resources, reducing the labor intensity, speeding up the net laying process, and having important significance for improving the anchor protection efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0030] Figure 1 The figure is a structural schematic diagram of the six-arm anchor rod drill carriage of the present application;

[0031] Figure 2 The figure is a structural schematic diagram of the six-arm anchor rod drill carriage of the present application;

[0032] Figure 3 The figure is a structural schematic diagram of the anchor protection unit in the six-arm anchor rod drill carriage of the present application;

[0033] Figure 4 The figure is a structural schematic diagram of the anchor protection unit in the six-arm anchor rod drill carriage of the present application;

[0034] Figure 5 The figure is a structural schematic diagram of the scissor type lifting platform in the six-arm anchor rod drill carriage of the present application;

[0035] Figure 6 The figure is a structural schematic diagram of the automatic net feeding device in the six-arm anchor rod drill carriage of the present application;

[0036] Figure 7 The figure is a structural schematic diagram of the automatic net feeding device in the six-arm anchor rod drill carriage of the present application;

[0037] Figure 8 The figure is a structural schematic diagram of the automatic net feeding device in the six-arm anchor rod drill carriage of the present application; Figure 7 The figure is a local enlarged view of position A in the figure;

[0038] Figure 9 The figure is a structural schematic diagram of the automatic net feeding device in the six-arm anchor rod drill carriage of the present application;

[0039] Figure 10 The figure is a structural schematic diagram of the automatic net feeding device in the six-arm anchor rod drill carriage of the present application;

[0040] Wherein, 100, tracked chassis; 200, anchor protection unit; 300, oil tank; 400, pump station; 500, automatic net feeding device; 1, scissor lift platform; 2, second rotary reducer; 3, first mounting frame; 4, front and rear swing oil cylinder; 5, outer sleeve; 6, lower sleeve; 7, rear moving platform; 8, front rotating platform; 9, side anchor protection pedal; 10, top anchor drill; 11, roof; 12, main pedal; 13, frame; 14, slide rail; 15, platform base slide rail; 16, platform lifting oil cylinder; 17, link assembly; 18, platform seat; 19, first rotary reducer; 20, roof; 21, vertical mounting plate; 22, fifth driving device; 23, permanent magnet; 24, second mounting frame; 25, slide; 26, upper sleeve; 27, sixth driving device; 28, first connecting rod; 29, second connecting rod; 30, hinged seat; 31, fixed net bin; 32, right side net moving bin; 33, left side net moving bin; 34, second driving device; 35, rack; 36, fixed net suction cup; 37, side moving net suction cup; 38, pin shaft; 301, slide groove; 302, limiting rod; 331, side moving bottom plate; 332, side moving baffle; 3601, first upper slide rail; 3602, second upper slide rail; 3603, first lower slide rail; 3604, second lower slide rail. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0042] The purpose of the present application is to provide a six-arm anchor rod drill carriage to solve the problems existing in the prior art and improve the operation efficiency of anchor rod support in coal mines.

[0043] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0044] As shown in Figures 1-10 The present embodiment provides a six-arm anchor rod drill carriage, which comprises a tracked chassis 100, an anchor protection unit 200 and an automatic net feeding device 500.

[0045] The anchor protection unit 200 comprises a lifting platform, a rotating anchor protection platform, six top anchor drills 10 and two roof assemblies. The lifting platform is fixedly arranged on the tracked chassis 100.

[0046] In the embodiment, the lifting platform is a scissor type lifting platform 1. As shown in Figure 5 FIG. 1, the scissor type lifting platform 1 mainly comprises a platform base sliding rail 15, a platform lifting oil cylinder 16, a connecting rod assembly 17, a platform base 18, etc. The platform base sliding rail 15 is installed on the running chassis, and a fixed rail is installed on the inner side of the platform base sliding rail 15. Under the action of the platform lifting oil cylinder 16, the connecting rod assembly 17 moves in the sliding rail, and drives the platform base 18 to vertically lift, with a lifting range of 0-1000 mm. The platform base 18 of the scissor type lifting platform 1 is provided with a first rotary speed reducer 19. The scissor type lifting platform 1 is a mature existing device, and its specific structure and working principle will not be described in detail in the embodiment.

[0047] In the embodiment, the rotary anchor protection platform comprises a front rotary platform 8 and a rear moving platform 7. The bottom end center of the front rotary platform 8 is fixedly connected with the output end of the first rotary speed reducer 19. The rear moving platform 7 is fixedly provided with a first sleeve, and the front rotary platform 8 is fixedly provided with a second sleeve. The first sleeve is partially arranged in the second sleeve, and the front rotary platform 8 is provided with a first driving device capable of driving the first sleeve to slide along the second sleeve.

[0048] The front rotary platform 8 and the rear moving platform 7 are respectively and intermittently provided with three top anchor drilling machines 10. Specifically, the top anchor drilling machine 10 is connected with the front rotary platform 8 or the rear moving platform 7 through a first mounting structure. The first mounting structure comprises a vertical mounting plate 21, a second rotary speed reducer 2, a front and rear swing oil cylinder 4, and a first mounting frame 3. The bottom end of the vertical mounting plate 21 is fixedly connected with the front rotary platform 8 or the rear moving platform 7. The second rotary speed reducer 2 is fixedly arranged on the vertical mounting plate 21. The first mounting frame 3 is fixedly connected with the output end of the second rotary speed reducer 2. The top anchor drilling machine 10 is rotationally connected with the first mounting frame 3 in the corresponding first mounting structure. One end of the front and rear swing oil cylinder 4 is hingedly connected with the corresponding top anchor drilling machine 10, and the other end is hingedly connected with the first mounting frame 3. It is worth noting that the two top anchor drilling machines 10 at the two ends of the front rotary platform 8 and the rear moving platform 7 can be used as side drilling machines after being driven by the second rotary speed reducer 2 to become horizontal.

[0049] The roof assembly comprises two roof mechanisms. Each roof mechanism comprises an inner sleeve, an outer sleeve 5, and a roof 11. The inner sleeve and the outer sleeve 5 are vertically arranged, and the roof 11 is horizontally arranged. The bottom end of the inner sleeve is fixedly connected with the front rotary platform 8. The outer sleeve 5 is slidingly arranged on the inner sleeve. The inner sleeve is provided with a fourth driving device for driving the outer sleeve 5 to slide relative to the inner sleeve. One end of the roof 11 is fixedly connected with the top end of the outer sleeve 5. It is worth noting that the inner sleeve is hidden by the outer sleeve 5, so the inner sleeve is not visible in the figure. Figures 1 to 4

[0050] ​Two side anchor protection steps 9 are hinged at two ends of the front rotating platform 8 respectively; and a main step 12 is hinged at a side of the rear moving platform 7 away from the front rotating platform 8. The side anchor protection steps 9 and the main step 12 are used for stepping by the construction personnel, and when not in use, the side anchor protection steps 9 and the main step 12 are rotated vertically to reduce the width and length of the anchor protection unit 200 of the embodiment, thereby facilitating the movement of the anchor protection unit 200 of the embodiment in a narrow roadway.

[0051] In the embodiment, the first driving device and the fourth driving device are both hydraulic cylinders.

[0052] The front rotating platform 8 is connected with the lifting platform through the first rotary reducer 19, and the first rotary reducer 19 drives the front rotating platform 8 to rotate 90° in the working state, and the side anchor protection steps 9 and the main step 12 are placed horizontally in the working state. At this time, the width of the anchor protection unit 200 of the embodiment can reach 4900 mm, the width of the front rotating platform 8 is 1300 mm, the length is 3000 mm, and the rotating range of the front rotating platform 8 is -90°∽+90°.

[0053] In the embodiment, six drilling machines are arranged on the rotating anchor protection platform, arranged in front and back, and each of the front row and the back row is three top anchor drilling machines 10. The spacing between the top anchor drilling machines 10 in the front row and the top anchor drilling machines 10 in the back row can be adjusted, and the row spacing adjustment range is 600 mm∽1100 mm.

[0054] It should be noted that the front and rear rotation of the top anchor drilling machine 10 is realized through the front and rear swing oil cylinders 4, and the inner and outer rotation of the top anchor drilling machine 10 is realized through the driving of the second rotary reducer 2.

[0055] The automatic net feeding device 500 specifically includes a rack 13, a net bin, a net suction cup and two lifting and overturning mechanisms. The rack 13 is fixedly connected with the chassis in the tracked walking chassis 100, so that the rack 13 can move with the movement of the vehicle body of the anchor rod drilling vehicle. The net bin is used for storing nets, and the net bin includes a fixed net bin 31, which includes a horizontal plate and a vertical baffle. One end of the horizontal plate is fixedly connected with the rack 13, and the bottom end of the vertical baffle is fixedly connected with the other end of the horizontal plate.

[0056] In the embodiment, the screen bin further comprises a left side moving screen bin 33 and a right side moving screen bin 32 which are respectively in sliding fit with the fixed screen bin 31. The left side moving screen bin 33 and the right side moving screen bin 32 both comprise a side moving bottom plate 331 and a side moving baffle 332 which is fixedly connected to one end of the side moving bottom plate 331. The side moving bottom plate 331 is in sliding fit with the horizontal plate, and the side moving baffle 332 is close to the vertical baffle. The fixed screen bin 31, the left side moving screen bin 33 and the right side moving screen bin 32 are all in L shape. The left side moving screen bin 33 and the right side moving screen bin 32 are arranged to be retracted into the fixed screen bin 31, so as to reduce the size of the whole screen bin, which is beneficial to the automatic screen feeding device 500 to pass through the narrow roadway of the coal mine.

[0057] A sliding groove 301 is arranged on the side moving bottom plate 331, and the length direction of the sliding groove 301 is perpendicular to the length direction of the slide rail 14. A pin shaft 38 is arranged on the horizontal plate corresponding to any one of the sliding grooves 301. The pin shaft 38 penetrates through the corresponding sliding groove 301, and a gland is fixedly arranged on the top end of the pin shaft 38. The diameter of the gland is greater than the width of the sliding groove 301. The sliding groove 301 is in sliding fit with the corresponding pin shaft 38. The bottom end of the pin shaft 38 is fixedly connected to the side moving bottom plate 331 through a nut, but the side moving bottom plate 331 can be manually driven to slide on the horizontal plate after the nut is fastened. It should be noted that the gland has a limiting effect on the side moving bottom plate 331, which can prevent the side moving bottom plate 331 from tilting under the action of its own gravity and the gravity of the side moving baffle 332 after the side moving bottom plate 331 slides.

[0058] The left side moving screen bin 33 and the right side moving screen bin 32 both comprise a plurality of limiting rods 302 which are distributed along the length direction of the slide rail 14. The bottom end of the limiting rod 302 is fixedly connected to the side moving bottom plate 331. The interval between the limiting rod 302 closest to the side moving baffle 332 and the side moving baffle 332 and the interval between any two adjacent limiting rods 302 are both greater than or equal to the thickness of the screen to be used. In the embodiment, the limiting rods 302 are arranged because the screen is usually a screen formed by welding a plurality of horizontal and vertical steel bars, which has poor rigidity and cannot stand on the side. The limiting rods 302 are welded on the right side moving screen bin 32 and the left side moving screen bin 33. The interval between the two limiting rods 302 or the interval between the limiting rod 302 closest to the side moving baffle 332 and the side moving baffle 332 can meet the requirement that the screen can stand and slide up and down. In actual application, the number of the limiting rods 302 can be adaptively selected according to actual needs. In addition, the plurality of limiting rods 302 which are distributed along the length direction of the slide rail 14 form a row of limiting rods 302. In actual application, in order to improve the stability of the screen standing in the screen bin, two rows or even more rows of limiting rods 302 can be arranged on the same side moving bottom plate 331.

[0059] The mesh suction cup is used for sucking the mesh in the mesh bin, and a permanent magnet 23 is arranged on the mesh suction cup;

[0060] In the embodiment, the mesh suction cup includes a fixed mesh suction cup 36 and two side moving mesh suction cups 37. The hinged seat 30 is fixedly connected with the fixed mesh suction cup 36. The two side moving mesh suction cups 37 are respectively in sliding fit with the fixed mesh suction cup 36. A fifth driving device 22 is arranged on the fixed mesh suction cup 36 corresponding to each side moving mesh suction cup 37, and the fifth driving device 22 is used for driving the corresponding side moving mesh suction cup 37 to slide relative to the fixed mesh suction cup 36. The two side moving mesh suction cups 37 can be respectively located on the two sides of the fixed mesh suction cup 36. The two side moving mesh suction cups 37 are respectively provided with permanent magnets 23. In the embodiment, the fifth driving device 22 is a hydraulic cylinder.

[0061] The fixed mesh suction cup 36 is provided with an upper sliding rail and a lower sliding rail corresponding to each side moving mesh suction cup 37. Specifically, the two upper sliding rails are a first upper sliding rail 3601 and a second upper sliding rail 3602, and the two lower sliding rails are a first lower sliding rail 3603 and a second lower sliding rail 3604. One side moving mesh suction cup 37 is in sliding fit with the first upper sliding rail 3601 and the first lower sliding rail 3603, and the other side moving mesh suction cup 37 is in sliding fit with the second upper sliding rail 3602 and the second lower sliding rail 3604. The fifth driving device 22 is used for driving the side moving mesh suction cup 37 to slide outward, so as to adjust the position of the side moving mesh suction cup 37 for sucking the mesh. Since the mesh is often long, the position of the side moving mesh suction cup 37 for sucking the mesh is preferably as far as possible to the outside, so as to improve the stability of the mesh.

[0062] The two lifting and overturning mechanisms are parallel and spaced apart. Each lifting and overturning mechanism includes a sliding rail 14, a sliding seat 25, a lower sleeve 41, an upper sleeve 26, a first connecting rod 28, a second connecting rod 29, and a hinged seat 30. The sliding rail 14 is fixedly arranged on the rack 13 and is perpendicular to the vertical baffle. The sliding seat 25 is in sliding fit with the sliding rail 14. The second driving device 34 is used for driving the sliding seat 25 to slide along the sliding rail 14. The bottom end of the lower sleeve 41 is fixedly connected with the sliding seat 25. The upper sleeve 26 is slidingly sleeved on the lower sleeve 41. The lower sleeve 41 is provided with a third driving device for driving the upper sleeve 26 to slide relative to the lower sleeve 41. The top end of the upper sleeve 26 is fixedly provided with a sixth driving device 27 for driving the first connecting rod 28 to rotate.

[0063] In the embodiment, the sixth driving device 27 is a rotary oil cylinder. The other end of the first connecting rod 28 is fixedly connected with the output shaft of the rotary oil cylinder. When the rotary oil cylinder works, the first connecting rod 28 can rotate around the output shaft of the rotary oil cylinder as the center axis.

[0064] It should be noted that in actual application, the sixth driving device 27 (the sixth driving device 27 adopts a rotary oil cylinder) can also be used to drive the second connecting rod 29 to rotate, at this time, the end of the second connecting rod 29 away from the hinged seat 30 is fixedly connected with the output shaft of the rotary oil cylinder, and one end of the first connecting rod 28 is hinged with one end of the hinged seat 30, and the other end of the first connecting rod 28 is hinged with the top end of the upper sleeve 26; in addition, in actual application, other forms of driving devices and transmission mechanisms can also be used to drive the first connecting rod 28 or the second connecting rod 29 to rotate, as long as the final overturning of the mesh suction cup can be realized.

[0065] In the embodiment, the third driving device adopts a hydraulic cylinder. The slide rail 14 is provided with a rack 35, the length direction of the rack 35 is the same as the length direction of the slide rail 14, the second driving device 34 is a driving motor fixedly arranged on the slide base 25, and a driving gear engaged with the rack 35 is fixedly arranged on the output shaft of the second driving device 34.

[0066] One or both ends of the slide rail 14 away from the vertical baffle 24 are provided with first electromagnetic proximity switches, and the middle parts of the slide rail 14 are provided with second electromagnetic proximity switches, the first electromagnetic proximity switches and the second electromagnetic proximity switches are electrically connected with the control system respectively, and the control system is used to control the opening and closing of the second driving device 34, the second driving device and the fifth driving device 22.

[0067] The working process of the automatic mesh feeding device 500 in the embodiment is as follows:

[0068] The six-arm anchor rod jumbo of the embodiment is driven to the middle position of the roadway, the right mesh moving bin 32 and the left mesh moving bin 33 are manually pulled out (i.e. the right mesh moving bin 32 and the left mesh moving bin 33 are respectively moved to the two sides of the fixed mesh bin 31), and the mesh is vertically placed between the two limiting rods 302 or between the limiting rod 302 closest to the side moving baffle 332 and the side moving baffle 332.

[0069] The fifth driving device 22 is used to drive the side moving mesh suction cup 37 to extend out, the second driving device 34 is used to drive the slide base 25 to slide along the slide rail 14 towards the mesh bin, the slide base 25 drives the lower sleeve 41, the upper sleeve 26, the first connecting rod 28, the second connecting rod 29, the hinged seat 30 and the mesh suction cup to slide when sliding, until the mesh suction cup slides to the mesh bin, after the mesh suction cup contacts the mesh, the second driving device 34 continues to drive the mesh suction cup to press the mesh, after the pressure of the driving motor (i.e. the second driving device 34) reaches a set value, the driving motor is stopped, so that the mesh suction cup no longer slides.

[0070] Then the second driving device in the lower sleeve 41 lifts the upper sleeve 26 to make the bottom end of the mesh higher than the top end of the mesh bin, and then rotates the oil cylinder to drive the first connecting rod 28 to rotate, so that the mesh is reversed from the vertical state to the horizontal state. The second driving device 34 drives the sliding seat 25 to slide along the slide rail 14 away from the mesh bin until the end of the slide rail 14 away from the mesh bin, and the sliding seat 25 triggers the first electromagnetic proximity switch. Then the mesh is dragged to the top of the drilling machine by the support worker on the rack 13, and the mesh feeding process is completed.

[0071] Then the second driving device in the lower sleeve 41 makes the upper sleeve 26 lower, and at the same time, the second driving device 34 drives the sliding seat 25 to slide along the slide rail 14 towards the mesh bin. After the sliding seat 25 triggers the second electromagnetic proximity switch, the control system automatically closes the driving motor to stop the sliding action. Then the rotary oil cylinder drives the first connecting rod to rotate, and the mesh suction cup is reversed from the horizontal state to the vertical state (as shown in the state). It should be noted that only when the first electromagnetic proximity switch is triggered first and the second electromagnetic proximity switch is triggered, the control system will automatically close the driving motor to stop the sliding action. Figure 1

[0072] It should be noted that the oil tank 300 and the pump station 400 are also provided on the six-arm anchor rod drilling rig of the embodiment. The oil tank 300 is used to store hydraulic oil, and the pump station 400 is used to supply oil to each hydraulic cylinder.

[0073] The specific method of using the six-arm anchor rod drilling rig of the embodiment for rapid support is as follows:

[0074] (1) After the cutting of the fully mechanized coal mining machine is completed, the fully mechanized coal mining machine is made to retreat and lean against the side coal wall, so that the six-arm anchor rod drilling rig of the embodiment is in the narrow state (as shown in the state), and then the six-arm anchor rod drilling rig of the embodiment is made to enter the driving face from the side of the fully mechanized coal mining machine and drive to the middle position of the roadway for anchor protection. The left mesh bin 33 and the right mesh bin 32 are manually pulled out, and the mesh needed for single cycle is placed in the mesh bin; Figure 1

[0075] (2) Then the rotary anchor protection platform is rotated by 90°, and 2 anchor protection workers climb onto the rotary anchor protection platform and operate the rear moving platform 7 to move backward to expand the rack as a whole. Then the automatic mesh feeding device 500 is started to feed the mesh (for details, refer to the working process of the automatic mesh feeding device 500);

[0076] ​​(3) after the net is sent, the anchor protection worker assists in lifting the net above the ceiling 11, then drives the outer sleeve 5 to rise by operating the fourth driving device, the outer sleeve 5 drives the ceiling 11 to rise, until the ceiling 11 lifts the net to contact the roadway roof, then the hole drilling operation is started by each roof anchor drill 10, after the hole drilling is completed, the anchor agent is put in, the anchor rod is installed, the anchor agent is stirred, after several seconds, the anchor rod is trapped, and the installation of the anchor rod is completed;

[0077] (4) the scissor lifting platform 1 is lifted to the highest (during the process, attention should be paid to driving the outer sleeve 5 to descend by operating the fourth driving device, so as to avoid the interference between the ceiling 11 and the net during the lifting process of the scissor lifting platform 1), the front and rear rows of roof side anchor rod supports are formed by the two roof anchor drills 10 at the two ends of the front rotating platform 8 and the rear moving platform 7, 4 anchor rods are operated in parallel, after the completion, the scissor lifting platform 1 is lowered, and the lower side anchor rod support is formed;

[0078] (5) the initial posture of all the roof anchor drills 10 is restored, the left net moving bin 33 and the right net moving bin 32 are withdrawn, the rear moving platform 7 is retracted, then the rotating anchor protection platform is rotated by 90° in the opposite direction of step (2), the six-arm anchor rod jumbo of the embodiment is operated to walk, so that the six-arm anchor rod jumbo of the embodiment retreats from the side of the fully-mechanized coal mining face to the rear side of the machine body, then the fully-mechanized coal mining face is started to walk forward to the middle position of the roadway to cut, and the next working cycle is entered;

[0079] (6) steps (1)-(5) are repeatedly performed until the whole coal mine tunneling and mining is completed.

[0080] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the devices or elements indicated or implied to have a specific orientation, to be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0081] In the present application, specific examples are applied to describe the principles and implementation modes of the present application, and the above examples are only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed. Therefore, the content of the present application should not be understood as limiting the present application.

Claims

1. A six-boom jumbo, characterized in that, The utility model relates to a kind of anchor protection unit and automatic net feeding device, including: Crawler chassis; Anchor protection unit, the anchor protection unit includes lifting platform and rotating anchor protection platform, the lifting platform is fixed on the crawler chassis, the first swing reducer is provided on the lifting platform;The rotating anchor protection platform includes front rotating platform and rear moving platform, the bottom end center of the front rotating platform is fixed with the output end of the first swing reducer, the first sleeve is fixed on the rear moving platform, the second sleeve is fixed in the front rotating platform, the first sleeve is partially inserted in the second sleeve, the first driving device capable of driving the first sleeve sliding along the second sleeve is provided in the front rotating platform;Three top anchor drills are respectively and interval arranged on the front rotating platform and the rear moving platform; Automatic net feeding device, the automatic net feeding device includes rack, net piece warehouse, net piece suction cup and two parallel and interval arranged lifting and turnover mechanisms, the rack is fixedly connected with the crawler chassis;The net piece warehouse includes fixed net piece warehouse, the fixed net piece warehouse includes horizontal plate and vertical baffle, one end of the horizontal plate is fixedly connected with the rack, the bottom end of the vertical baffle is fixedly connected with the other end of the horizontal plate;Permanent magnet is provided on the net piece suction cup;Each lifting and turnover mechanism includes slide rail, sliding seat, lower sleeve, upper sleeve, first connecting rod, second connecting rod and hinged seat;The slide rail is fixed on the rack and is perpendicular to the vertical baffle;The sliding seat is slidably connected with the slide rail, and the second driving device is used to drive the sliding seat to slide along the slide rail, the bottom end of the lower sleeve is fixedly connected with the sliding seat, the upper sleeve is slidably connected with the lower sleeve, the third driving device for driving the upper sleeve to slide relative to the lower sleeve is arranged in the lower sleeve, the hinged seat is fixedly connected with the net piece suction cup, one end of the first connecting rod is hinged with one end of the hinged seat, the top end of the upper sleeve is fixedly connected with the sixth driving device for driving the first connecting rod to rotate, one end of the second connecting rod is hinged with the top of the upper sleeve, and the other end is hinged with the other end of the hinged seat.

2. A six-boom jumbo according to claim 1, characterized in that: One side help anchor protection tread is hinged on the both ends of the front rotating platform respectively;Main tread is hinged on the side of the rear moving platform away from the front rotating platform.

3. A six-boom jumbo according to claim 1, characterized in that: The anchor protection unit further includes roof assembly, the roof assembly includes two roof mechanisms;Each roof mechanism includes inner sleeve, outer sleeve and roof, the inner sleeve and the outer sleeve are vertically arranged, the roof is horizontally arranged, the bottom end of the inner sleeve is fixedly connected with the front rotating platform, the outer sleeve is slidably connected with the inner sleeve, the fourth driving device for driving the outer sleeve to slide relative to the inner sleeve is arranged in the inner sleeve, one end of the roof is fixedly connected with the top end of the outer sleeve.

4. A six-boom jumbo according to claim 1, characterized in that: The top anchor drilling machine is installed on the front rotary platform or the rear moving platform through a first mounting structure; the first mounting structure comprises a vertical mounting plate, a second rotary speed reducer, a front-rear swing oil cylinder and a first mounting frame, the bottom end of the vertical mounting plate is fixedly connected with the front rotary platform or the rear moving platform, the second rotary speed reducer is fixedly arranged on the vertical mounting plate, the first mounting frame is fixedly connected with the output end of the second rotary speed reducer, the top anchor drilling machine is rotationally connected with the first mounting frame in the corresponding first mounting structure, and one end of the front-rear swing oil cylinder is hingedly connected with the corresponding top anchor drilling machine and the other end is hingedly connected with the first mounting frame.

5. The six-boom jumbo of claim 1, characterized in that: The mesh bin further comprises a left side mesh moving bin and a right side mesh moving bin which are respectively in sliding fit with the fixed mesh bin, the left side mesh moving bin and the right side mesh moving bin both comprise a side moving bottom plate and a side moving baffle fixedly connected with one end of the side moving bottom plate, the side moving bottom plate is in sliding fit with the horizontal plate, and the side moving baffle is close to the vertical baffle; two parallel sliding grooves are arranged on the side moving bottom plate, the length direction of the sliding groove is perpendicular to the length direction of the sliding rail; a pin shaft is arranged on the horizontal plate corresponding to any one sliding groove, the pin shaft penetrates through the corresponding sliding groove, and the top end of the pin shaft is fixedly provided with a gland, the diameter of the gland is greater than the width of the sliding groove; the sliding groove is in sliding fit with the corresponding pin shaft; the left side mesh moving bin and the right side mesh moving bin both comprise a plurality of limiting rods which are distributed at intervals along the length direction of the sliding rail, the bottom end of the limiting rod is fixedly connected with the side moving bottom plate, and the interval between the limiting rod closest to the side moving baffle and the side moving baffle and the interval between any two adjacent limiting rods are both greater than or equal to the thickness of the mesh to be used.

6. A six-boom jumbo according to claim 3, characterized in that: The mesh suction disc comprises a fixed mesh suction disc and two side moving mesh suction discs, the hinged seat is fixedly connected with the fixed mesh suction disc, the two side moving mesh suction discs are respectively in sliding fit with the fixed mesh suction disc, a fifth driving device is arranged on the fixed mesh suction disc corresponding to each side moving mesh suction disc, and the fifth driving device is used to drive the corresponding side moving mesh suction disc to slide relative to the fixed mesh suction disc; the two side moving mesh suction discs can be located on the two sides of the fixed mesh suction disc respectively; the two side moving mesh suction discs are respectively provided with the permanent magnet; the fixed mesh suction disc is provided with an upper sliding rail and a lower sliding rail corresponding to each side moving mesh suction disc, and the side moving mesh suction disc is in sliding fit with the corresponding upper sliding rail and lower sliding rail.

7. A six-boom jumbo according to claim 1, characterized in that: A rack is arranged on the sliding rail, the length direction of the rack is the same as the length direction of the sliding rail, and the second driving device is a driving motor fixedly arranged on the sliding seat, and a driving gear engaged with the rack is fixedly arranged on the output shaft of the second driving device.

8. A six-boom jumbo according to claim 6, characterised in that: An end of the slide rail away from the vertical baffle is provided with a first electromagnetic proximity switch, a middle part of the slide rail is provided with a second electromagnetic proximity switch, the first electromagnetic proximity switch and the second electromagnetic proximity switch are electrically connected with a control system respectively, and the control system is used for controlling opening and closing of the second driving device, the third driving device and the fifth driving device.

9. A six-boom jumbo according to claim 6, characterized in that: The first driving device, the third driving device, the fourth driving device and the fifth driving device all adopt hydraulic cylinders; and the lifting platform adopts a scissor type lifting platform.

10. The six-boom jumbo of claim 1, characterized in that: The sixth driving device adopts a rotary oil cylinder, and the other end of the first connecting rod is fixedly connected with an output shaft of the rotary oil cylinder.

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