Five-arm anchor rod drill carriage

Abstract

The application discloses a five-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 roof anchor drills are arranged on the front rotary platform. Two side anchor drills are arranged on the rear moving platform. The automatic net feeding device comprises a frame, a net piece warehouse, a net piece suction cup 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 cup. Each lifting and overturning mechanism comprises a second 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 working efficiency of anchor rod supporting in coal mines.

Description

TECHNICAL FIELD

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

[0002] At present, the coal mine mainly adopts anchor rod supporting process, drills anchor rod holes or anchor cable holes on the inner wall of the coal mining roadway, so as to install anchor rod or anchor cable supporting devices, therefore, the hydraulic anchor rod drill carriage for coal mine is an important coal mine anchor supporting 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 supporting 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 multi-arm anchor rod drill carriage needs the front tunneling equipment to retreat, and then enters the head-on to support, which is time-consuming and laborious.

[0003] In the existing anchor rod drill carriage, 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 carriage to frequently reverse and the inability to consider both side and fixed sides.

[0004] In addition, the underground supporting equipment also has the following defects:

[0005] (1) At present, the existing multi-arm anchor rod machine has a relatively wide width, 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, the multi-drill arm and multi-row parallel operation 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, which can only support the roof and side of single row, 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 carried out to complete the support of the roadway, which is low in efficiency;

[0008] (4) When the anchor rod machine is used for net laying operation, manual anchor net 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 five-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.

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

[0011] The present application provides a five-arm anchor rod drill carriage, comprising:

[0012] A crawler-type running chassis;

[0013] An anchor protection unit, the anchor protection unit comprising a lifting platform and a rotating anchor protection platform, the lifting platform being fixedly arranged on the crawler-type running chassis, and a first slewing reducer being arranged on the lifting platform; the rotating anchor protection platform comprising a front rotating platform and a rear moving platform, a bottom end center of the front rotating platform being fixedly connected with an output end of the first slewing reducer, the rear moving platform being slidably arranged with a first slide rail in the front rotating platform, and a first driving device being arranged in the front rotating platform to drive the rear moving platform to slide along the first slide rail; three top anchor drills being arranged on the front rotating platform at intervals; two four-link lifting mechanisms being arranged on the rear moving platform, and one side anchor drill being arranged on each four-link lifting mechanism;

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

[0015] Preferably, the front rotating platform is hingedly connected with a side anchor protection step at each end; the rear moving platform is hingedly connected with a main step at a side away from the front rotating platform; the seventh driving device is 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.

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

[0017] Preferably, the front rotating platform is provided with a first mounting structure corresponding to each of the roof anchor drilling machines, the first mounting structure comprising a vertical mounting plate, a second rotary reducer, a front-rear swing oil cylinder and a first mounting bracket, the bottom end of the vertical mounting plate is fixedly connected with the front rotating platform, the second rotary reducer is fixedly arranged on the vertical mounting plate, the first mounting bracket is fixedly connected with an output end of the second rotary reducer, the roof anchor drilling machine is rotationally connected with the first mounting bracket in the corresponding first mounting structure, and one end of the front-rear swing oil cylinder is hingedly connected with the corresponding roof anchor drilling machine and the other end is hingedly connected with the first mounting bracket.

[0018] Preferably, the side anchor rod drilling machine is connected with the corresponding four-bar linkage lifting mechanism through a second mounting structure, the second mounting structure comprising a swing base and a second mounting bracket, the swing base is fixedly arranged on the four-bar linkage lifting mechanism, and the second mounting bracket is fixedly connected with an output end of the swing base, and the side anchor rod drilling machine is fixedly arranged on the second mounting bracket.

[0019] Preferably, the mesh bin further comprises a left side moving mesh bin and a right side moving mesh bin which are respectively in sliding fit with the fixed mesh bin, the left side moving mesh bin and the right side moving mesh bin both comprise a side moving bottom plate and a side moving baffle which is fixedly connected to 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 grooves is perpendicular to the length direction of the second sliding rail; a pin shaft is arranged on the horizontal plate corresponding to any one of the sliding grooves, 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 moving mesh bin and the right side moving mesh bin both comprise a plurality of limiting rods which are distributed at intervals along the length direction of the second sliding rail, the bottom end of the limiting rod is fixedly connected to 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.

[0020] Preferably, the mesh suction disc comprises a fixed mesh suction disc and two side moving mesh suction discs, the hinge seat is fixedly connected to the fixed mesh suction disc, and 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.

[0021] Preferably, a rack is arranged on the second sliding rail, the length direction of the rack is the same as the length direction of the second sliding rail, the second driving device is a driving motor fixedly arranged on the sliding seat, and a driving gear which is in mesh with the rack is fixedly arranged on the output shaft of the second driving device.

[0022] Preferably, a first electromagnetic proximity switch is arranged at the end of the second sliding rail away from the vertical baffle, a second electromagnetic proximity switch is arranged in the middle of the second sliding rail, the first electromagnetic proximity switch and the second electromagnetic proximity switch are respectively electrically connected with a 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.

[0023] 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 lifting platform.

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

[0025] The five-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 five-arm anchor rod drilling rig of the present application can support multiple anchor rods at one time, and can be narrowed in machine body according to needs; 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 the top of multiple rows of anchor rods and on the side of the roadway. 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] When the five-arm anchor rod drilling rig of the present application is performing support operation, the front and rear rows of anchor support drilling machines can simultaneously perform operation, and the row distance can be adjusted within the range of 600-1000mm. The problem of lagging side anchor rod support when top anchor is drilled is solved.

[0028] In the five-arm anchor rod drilling rig of the present application, the automatic net feeding device only needs to manually place the net, and the net feeding device can automatically feed the anchor net to the front side working platform, saving manpower and material resources, reducing the labor intensity, speeding up the net laying process, and having important significance for improving the anchor support 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 be obtained by those skilled in the art without creative labor.

[0030] Figure 1 It is a structure schematic diagram of the five-arm anchor rod drilling rig of the present application in the retracted state.

[0031] Figure 2 It is a structure schematic diagram of the five-arm anchor rod drilling rig of the present application in the unfolded state.

[0032] Figure 3 It is a structure schematic diagram of the anchor support unit in the five-arm anchor rod drilling rig of the present application in the retracted state.

[0033] Figure 4 It is a structure schematic diagram of the anchor support unit in the five-arm anchor rod drilling rig of the present application in the unfolded state.

[0034] Figure 5Structure diagram of the scissor type lifting platform in the five-arm anchor rod drill carriage of the present application;

[0035] Figure 6 Structure diagram of the automatic net feeding device in the five-arm anchor rod drill carriage of the present application;

[0036] Figure 7 Structure diagram of the automatic net feeding device in the five-arm anchor rod drill carriage of the present application;

[0037] Figure 8 Structure diagram of the automatic net feeding device in the five-arm anchor rod drill carriage of the present application; Figure 7 Enlarged view of part A in the middle;

[0038] Figure 9 Structure diagram of the automatic net feeding device in the five-arm anchor rod drill carriage of the present application;

[0039] Figure 10 Structure diagram of the automatic net feeding device in the five-arm anchor rod drill carriage of the present application;

[0040] Wherein, 100, crawler-type walking chassis; 200, anchor protection unit; 300, oil tank; 400, pump station; 500, automatic net feeding device; 1, scissor type lifting platform; 2, rotating anchor protection platform; 3, side anchor rod drill; 4, top anchor drill; 5, ceiling assembly; 6, rear moving platform; 7, front rotating platform; 8, side anchor protection step; 9, main step; 10, side moving slide rail; 11, four-bar linkage lifting mechanism; 12, swing base; 13, inner sleeve; 14, outer sleeve; 15, platform base slide rail; 16, platform lifting oil cylinder; 17, connecting rod assembly; 18, platform seat; 19, first rotary reducer; 20, ceiling; 21, second rotary reducer; 22, first mounting bracket; 23, front and rear swing oil cylinder; 24, second mounting bracket; 25, sliding seat; 26, upper sleeve; 27, rotating oil cylinder; 28, first connecting rod; 29, second connecting rod; 30, hinged seat; 31, fixed net bin; 32, right side moving net bin; 33, left side moving net bin; 34, second driving device; 35, rack; 36, fixed net suction cup; 37, side moving net suction cup; 38, pin shaft; 39, second slide rail; 40, rack; 41, lower sleeve; 301, sliding 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; 3605, permanent magnet; 3606, fifth driving device. DETAILED DESCRIPTION

[0041] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative efforts belong to the scope of the present application.

[0042] The present application aims to provide a five-arm anchor rod drill carriage to solve the problems 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 five-arm anchor rod drill carriage, which comprises a crawler-type running 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 2, three top anchor drills 4, a roof assembly 5, two four-bar linkage lifting mechanisms 11 and two side anchor drills 3. The lifting platform is fixedly arranged on the crawler-type running chassis 100.

[0046] In the present embodiment, the lifting platform is a scissor-type lifting platform 1. As shown in Figure 5 , 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 seat 18 and the like. The platform base sliding rail 15 is installed on the running chassis, and a fixed rail is installed on the inner side thereof. Under the action of the platform lifting oil cylinder 16, the connecting rod assembly 17 moves in the sliding rail, and drives the platform seat 18 to vertically lift, with a lifting range of 0-1000mm. The platform seat 18 of the scissor-type lifting platform 1 is provided with a first rotary 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 present embodiment.

[0047] In the present embodiment, the rotating anchor protection platform 2 comprises a front rotating platform 7 and a rear moving platform 6. The bottom end center of the front rotating platform 7 is fixedly connected with the output end of the first rotary reducer 19, and the rear moving platform 6 is in sliding fit with the first sliding rail in the front rotating platform 7. The front rotating platform 7 is provided with a first driving device for driving the rear moving platform 6 to slide along the first sliding rail.

[0048] Three top anchor drills 4 are arranged at intervals on the front rotating platform 7; specifically, the front rotating platform 7 is provided with a first mounting structure corresponding to each top anchor drill 4, the first mounting structure comprising a vertical mounting plate, a second rotary reducer 21, a front-rear swing oil cylinder 23 and a first mounting frame 22, the bottom end of the vertical mounting plate being fixedly connected to the front rotating platform 7, the second rotary reducer 21 being fixedly arranged on the vertical mounting plate, the first mounting frame 22 being fixedly connected to the output end of the second rotary reducer 21, the top anchor drill 4 being rotationally connected to the first mounting frame 22 in the corresponding first mounting structure, and the front-rear swing oil cylinder 23 being hingedly connected to one end of the corresponding top anchor drill 4 and the other end of the first mounting frame 22.

[0049] In the embodiment, two four-link lifting mechanisms 11 are slidingly arranged on the rear moving platform 6, the four-link lifting mechanism 11 being slidingly matched with the side moving slide rail 10 on the rear moving platform 6, and a sixth driving device being arranged in the rear moving platform 6 corresponding to each four-link lifting mechanism 11, the sixth driving device being used to drive the corresponding four-link lifting mechanism 11 to slide along the side moving slide rail 10.

[0050] Two side anchor rod drills 3 correspond to two four-link lifting mechanisms 11, the side anchor rod drill 3 being connected to the corresponding four-link lifting mechanism 11 through a second mounting structure, the second mounting structure comprising a swing base 12 and a second mounting frame 24, the swing base 12 being fixedly arranged on the four-link lifting mechanism 11, the second mounting frame 24 being fixedly connected to the output end of the swing base 12, and the side anchor rod drill 3 being fixedly arranged on the second mounting frame 24.

[0051] The roof assembly 5 comprises two roof mechanisms; each roof mechanism comprises an inner sleeve 13, an outer sleeve 14 and a roof 20, the inner sleeve 13 and the outer sleeve 14 being vertically arranged, and the roof 20 being horizontally arranged, the bottom end of the inner sleeve 13 being fixedly connected to the front rotating platform 7, the outer sleeve 14 being slidingly arranged on the inner sleeve 13, the inner sleeve 13 being provided with a fourth driving device for driving the outer sleeve 14 to slide relative to the inner sleeve 13, and one end of the roof 20 being fixedly connected to the top end of the outer sleeve 14.

[0052] The front rotating platform 7 is hingedly connected with a side anchor protection step 8 at each end; and the rear moving platform 6 is hingedly connected with a main step 9 on the side away from the front rotating platform 7. The side anchor protection step 8 and the main step 9 are used for being stepped on by construction personnel, and when not in use, the side anchor protection step 8 and the main step 9 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.

[0053] In the embodiment, the first driving device, the fourth driving device and the sixth driving device all adopt hydraulic cylinders.

[0054] The anchor protection unit 200 in the embodiment retracts and expands in the anchor rod support operation state as shown in Figure 3 and Figure 4 The front rotating platform 7 is connected with the lifting platform through the first rotary reducer 19, and the first rotary reducer 19 drives the front rotating platform 7 to rotate 90° in the working state, and the side anchor protection pedal 8 and the main pedal 9 are placed horizontally in the working state. At this time, the width of the anchor protection unit 200 in the embodiment can reach 4900mm, the width of the front rotating platform 7 is 1300mm, the length is 3000mm, and the rotating range of the front rotating platform 7 is-90°∽+90°.

[0055] Five drill machines are arranged on the rotating working platform, which are arranged in front and back two rows. The front row is three top anchor drill machines 4, and the back row is two side anchor rod drill machines 3. The distance between the top anchor drill machines 4 in the front row and the side anchor rod drill machines 3 in the back row can be adjusted, and the row distance adjustment range is 600mm∽1100mm.

[0056] Among the three top anchor drill machines 4 in the front row, the middle one has a rotating freedom degree of 5° front and back and left and right, and the outer two have a rotating freedom degree of 5° front and back, 5° inside and 100° outside, and a sliding freedom degree outward, and the sliding stroke is 800mm. It should be noted that the front and back rotation of the top anchor drill machine 4 is realized through the front and back swing cylinder 23, and the inside and outside rotation of the top anchor drill machine 4 is realized through the driving of the second rotary reducer 21.

[0057] The two side anchor rod drill machines 3 in the back row can realize 800mm range lifting through the four-bar linkage lifting mechanism, and realize 5° range rotating freedom degree front and back through the swing base 12.

[0058] The automatic mesh feeding device 500 specifically includes a rack 40, a mesh bin, a mesh suction cup and two lifting and overturning mechanisms. The rack 40 is fixedly connected with the chassis in the tracked walking chassis 100, so that the rack 40 can move with the movement of the vehicle body of the anchor rod drill carriage. The mesh bin is used for storing mesh, and the mesh bin includes a fixed mesh bin 31, which includes a horizontal plate and a vertical baffle. One end of the horizontal plate is fixedly connected with the rack 40, and the bottom end of the vertical baffle is fixedly connected with the other end of the horizontal plate.

[0059] 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.

[0060] A plurality of sliding grooves 301 are arranged on the side moving bottom plate 331 in parallel, and the length direction of the sliding grooves 301 is perpendicular to the length direction of the second sliding rail 39. 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 the top end of the pin shaft 38 is fixedly provided with a gland. 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 with the side moving bottom plate 331 through a nut, but the nut needs to be tightly fastened to ensure that the side moving bottom plate 331 can slide on the horizontal plate manually driven. 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.

[0061] 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 in the length direction of the second sliding rail 39. The bottom end of the limiting rod 302 is fixedly connected with the side moving bottom plate 331, and 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 reason for arranging the limiting rods 302 is that 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 in the length direction of the second sliding rail 39 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 or more rows of limiting rods 302 can be arranged on the same side moving bottom plate 331 in parallel.

[0062] The mesh suction cup is used for sucking the mesh in the mesh bin, and a permanent magnet 3605 is arranged on the mesh suction cup;

[0063] 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 3606 is arranged on the fixed mesh suction cup 36 corresponding to each side moving mesh suction cup 37, and the fifth driving device 3606 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 3605. In the embodiment, the fifth driving device 3606 adopts a hydraulic oil cylinder.

[0064] 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 3606 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.

[0065] The two lifting and overturning mechanisms are parallel and spaced apart. Each lifting and overturning mechanism includes a second sliding rail 39, 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 second sliding rail 39 is fixedly arranged on the rack 40 and is perpendicular to the vertical baffle. The sliding seat 25 is in sliding fit with the second sliding rail 39. The second driving device 34 is used for driving the sliding seat 25 to slide along the second sliding rail 39. 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 seventh driving device 27 for driving the first connecting rod 28 to rotate.

[0066] In the embodiment, the seventh driving device 27 adopts 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.

[0067] It should be noted that in actual application, the seventh driving device 27 (the seventh 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.

[0068] In the embodiment, the third driving device adopts a hydraulic oil cylinder. The second sliding rail 39 is provided with a rack 35, the length direction of the rack 35 is the same as the length direction of the second sliding rail 39, and the second driving device 34 is a driving motor fixedly arranged on the sliding seat 25, and a driving gear fixedly arranged on the output shaft of the second driving device 34 is engaged with the rack 35.

[0069] One or both ends of the second sliding rail 39 away from the vertical baffle 24 are provided with first electromagnetic proximity switches, and the middle parts of the second sliding rail 39 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 3606.

[0070] The working process of the automatic mesh feeding device 500 in the embodiment is as follows:

[0071] The five-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.

[0072] The fifth driving device 3606 is used to drive the side moving mesh suction cup 37 to extend, the second driving device 34 is used to drive the sliding seat 25 to slide along the second sliding rail 39 towards the mesh bin, and the sliding seat 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 the sliding seat 25 slides, 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 extrude the mesh, and 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.

[0073] 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 27 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 second sliding rail 39 away from the mesh bin until the end of the second sliding rail 39 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 40, and the mesh feeding process is completed.

[0074] Then the second driving device in the lower sleeve 41 makes the upper sleeve 26 descend, and at the same time, the sliding seat 25 is driven by the second driving device 34 to slide along the second sliding rail 39 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 rotating oil cylinder 27 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). Figure 1 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.

[0075] It should be noted that the oil tank 300 and the pump station 400 are also provided on the five-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.

[0076] The specific method of using the five-arm anchor rod drilling rig of the embodiment for rapid support is as follows:

[0077] (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 five-arm anchor rod drilling rig of the embodiment is in the narrow state (as shown in Figure 1 ), and then the five-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 support. 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;

[0078] (2) Then the rotating anchor support platform 2 is rotated by 90°, and two anchor support workers climb onto the rotating anchor support platform 2 to operate the rear moving platform 6 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);

[0079] (3) after the net is sent, the anchor protection worker assists to lift the net above the ceiling 20, then drives the outer sleeve 5 to rise by operating the fourth driving device, the outer sleeve 5 drives the ceiling 20 to rise, until the ceiling 20 lifts the net to contact the roadway roof, then the hole drilling operation is started by each roof anchor drilling machine 10, after the hole drilling is completed, the anchor agent is placed, 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;

[0080] (4) the four-bar linkage lifting mechanism 11 is lifted to the highest, the top side anchor rod support of the front and rear two rows is carried out by the two side anchor rod drilling machines 3 on the rear moving platform 6, 4 anchor rods are operated in parallel, after the completion, the four-bar linkage lifting mechanism 11 is lowered, and the lower side anchor rod support is carried out by the two side anchor rod drilling machines 3 on the rear moving platform 6;

[0081] (5) the initial posture of all the roof anchor drilling machines 10 and all the side anchor rod drilling machines 3 is restored, the left and right net moving bins 33 and 32 are retracted, the rear moving platform 6 is retracted, then the rotating anchor protection platform 2 is rotated by 90° in the opposite direction in step (2), the five-arm anchor rod drilling vehicle of the embodiment is operated to walk, so that the five-arm anchor rod drilling vehicle 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;

[0082] (6) steps (1)-(5) are repeated until the whole coal mine tunneling and mining is completed.

[0083] In the description of the present application, it should be noted that the terms "center", "top", "bottom", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship 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 indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0084] 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 a limitation.

Claims

1. A five-boom roof bolter characterized by, The utility model relates to a roof bolting machine, which comprises a crawler chassis, an anchor protection unit, an automatic net feeding device and a roof bolting assembly. The anchor protection unit comprises a lifting platform and a rotating anchor protection platform. The lifting platform is fixed on the crawler 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.

2. A five-boom roof bolter as claimed in claim 1 characterised in that: The rear moving platform is slidably connected with the first slide rail in the front rotating platform.

3. The five-boom roof bolter of claim 1, wherein: The first driving device is arranged on the front rotating platform to drive the rear moving platform to slide along the first slide rail. Three top anchor drills are arranged on the front rotating platform at intervals. Two four-link lifting mechanisms are arranged on the rear moving platform. Each four-link lifting mechanism is provided with a side anchor drill. The automatic net feeding device comprises a frame, a net bin, a net suction disc and two lifting and overturning mechanisms arranged in parallel and at intervals. The frame is fixedly connected with the crawler chassis. The net bin comprises a fixed net bin. The horizontal plate is fixedly connected with the frame at one end. 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 suction disc. Each lifting and overturning mechanism comprises a second slide rail, a sliding seat, a lower sleeve, an upper sleeve, a first connecting rod, a second connecting rod and a hinged seat. The second slide rail is fixedly arranged on the frame and is perpendicular to the vertical baffle. The sliding seat is slidably connected with the second slide rail. A second driving device is arranged to drive the sliding seat to slide along the second slide rail. The bottom end of the lower sleeve is fixedly connected with the sliding seat. The upper sleeve is slidably arranged on the lower sleeve. A third driving device is arranged in the lower sleeve to drive the upper sleeve to slide relative to the lower sleeve. The hinged seat is fixedly connected with the net suction disc. One end of the first connecting rod is hinged with one end of the hinged seat. A seventh driving device is arranged on the top end of the upper sleeve to drive 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. The seventh driving device is a rotary oil cylinder. The other end of the first connecting rod is fixedly connected with the output shaft of the rotary oil cylinder. The anchor protection unit further comprises a roof assembly. The roof assembly comprises two roof mechanisms. Each roof mechanism comprises an inner sleeve, an outer sleeve and a roof. The inner sleeve and the outer sleeve are arranged vertically. The roof is arranged horizontally. The bottom end of the inner sleeve is fixedly connected with the front rotating platform. The outer sleeve is slidably arranged on the inner sleeve. A fourth driving device is arranged in the inner sleeve to drive the outer sleeve to slide relative to the inner sleeve. One end of the roof is fixedly connected with the top end of the outer sleeve.

4. The five-boom roof bolter of claim 1, wherein: A first mounting structure is arranged on the front rotating platform corresponding to each top anchor drilling machine, and the first mounting structure comprises a vertical mounting plate, a second rotary speed reducer, a front-back swing oil cylinder and a first mounting frame.

5. The five-boom roof bolter of claim 1, wherein: The side anchor rod drilling machine is connected with the corresponding four-bar linkage lifting mechanism through a second mounting structure, and the second mounting structure comprises a swing base and a second mounting frame.

6. The five-boom roof bolter of claim 1, wherein: 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, and 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 which is fixedly connected to 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 second 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 a gland is fixedly arranged at the top end of the pin shaft, 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 second sliding rail, the bottom end of the limiting rod is fixedly connected to 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.

7. The five-boom roof bolter of claim 3, wherein: The mesh suction disc comprises a fixed mesh suction disc and two side moving mesh suction discs, the hinge seat is fixedly connected to the fixed mesh suction disc, the two side moving mesh suction discs are in sliding fit with the fixed mesh suction disc respectively, 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 both 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.

8. The five-boom roof bolter of claim 1, wherein: The second sliding rail is provided with a rack, the length direction of the rack is the same as the length direction of the second sliding rail, the second driving device is a driving motor fixed on the sliding seat, and a driving gear engaged with the rack is fixed on the output shaft of the second driving device.

9. The five-boom roof bolter of claim 7, wherein: The first end of the second sliding rail away from the vertical baffle is provided with a first electromagnetic proximity switch, and the middle part of the second sliding 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 the opening and closing of the second driving device, the third driving device and the fifth driving device.

10. The five-boom roof bolter of claim 7, wherein: 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.

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