A combined coal mining, roadheader and roof bolter

Abstract

The present invention discloses a combined cutting, bolting and support machine for coal mining, which relates to the technical field of coal mine machinery. It includes a side support platform for the cutting head, a roof support platform and a bolt placement platform. Among them, the side support platform for the cutting head is arranged above the cutting arm, and the side support platform for the cutting head is used to realize the roadway side support of the cutting arm. The roof support platform is located directly above the fuselage, and the bolt placement platform is located behind the fuselage. The bolt placement platform is used to realize drilling and bolt installation. Compared with the existing combined cutting, bolting and support machine, it has the characteristics of large support area but small body force, comprehensive support but no impact on normal work, few bolt devices but flexible working mode. It can solve the problems that there is a lack of effective large-area temporary support during the tunneling process of the roadheader, the safety of the roadheader body and the staff cannot be guaranteed, and the tunneling work and the bolt work cannot be carried out simultaneously, resulting in low work efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of coal mine machinery, and particularly to a combined roadheader, bolter and shotcreter for coal mining. Background Art

[0002] With the development of the coal mine industry, coal mining work has been continuously carried out in deeper coal seams. In this process, coal mine equipment has been continuously updated and replaced. Especially for roadheader machines, there have been great improvements in both tunneling efficiency and tunneling quality. In order to ensure safety during tunneling, some patents have proposed temporary supports installed on the roadheader body, but their support area is too small to ensure the safety of the roadheader body and the staff. At the same time, the bolt support work cannot be carried out simultaneously with the tunneling work, resulting in low work efficiency. Moreover, there will be a part of the area that has not been supported between the roadheader and the section where the bolt support has been completed. If the support work is done manually, its safety cannot be guaranteed. Summary of the Invention

[0003] The present invention provides a combined roadheader, bolter and shotcreter for coal mining, which realizes an increased support area through structural improvement, completes the support of the roadway roof and the roadway sides, and uses a bolt equipment platform to realize simultaneous tunneling and bolting.

[0004] The specific technical solution provided by the present invention is as follows:

[0005] A combined roadheader, bolter and shotcreter for coal mining provided by the present invention includes a cutting head side support platform, a roof support platform and a bolt placement platform. Among them, the cutting head side support platform is arranged above the cutting arm, and the cutting head side support platform is used to realize the support of the roadway sides of the cutting arm. The roof support platform is located directly above the machine body, and the bolt placement platform is located behind the machine body. The bolt placement platform is used to realize drilling and bolt installation.

[0006] Optionally, the cutting head side support platform includes a cutting head side guard plate support hydraulic cylinder, a support leg translation drive hydraulic cylinder, a platform lifting guide plate, a support leg fixing rod, a cutting head side guard plate, a cutting head side support platform, a support leg, a platform fixing hole and a support leg fixing rod guide hole. Among them, the cutting head side guard plate support hydraulic cylinders are arranged on both sides of the cutting head side support platform, and the cutting head side guard plate support hydraulic cylinders are used to support the four cutting head side guard plates on both sides of the platform. The support leg translation drive hydraulic cylinder is arranged on the platform lifting guide plate, and the support leg translation drive hydraulic cylinder is used to push the support leg fixing rod to expand and contract. The platform lifting guide plate is used to complete the guiding work during the lifting process of the cutting head side support platform. The cutting head side support platform is used to support each device. The support leg is used to support the entire cutting head side support platform. The platform fixing hole is used to cooperate with the fixing bolts installed on the cutting arm of the roadheader to fix the cutting head side support platform. Four support leg fixing rod guide holes are arranged on the cutting head side support platform, and the support leg fixing rod guide holes are used to realize the fixing and guiding functions of the support leg fixing rod.

[0007] Optionally, the cutting head side guard plate is installed at the front end of the piston rod of the hydraulic support for the cutting head side guard plate. The hydraulic support for the cutting head side guard plate is installed on the fixed rod of the support leg, and the fixed rod of the support leg is installed on the platform lifting guide plate. The support platform for the cutting head side guard is provided with platform fixing holes and guide holes for the fixed rod of the support leg. The platform lifting guide plate is slidably installed in the guide holes for the fixed rod of the support leg.

[0008] Optionally, the roof support platform includes a cutting head support plate, a hydraulic support for the cutting head support plate, a hydraulic support support plate, a hydraulic drive for the roadway roof support plate, a main beam, a support beam, a hydraulic drive for the support beam, a hydraulic support for the main beam, side guard plates, a roadway roof support plate, a hydraulic support for the side guard plates, a support moving platform, a fixed pin drive motor, fixed pin holes, a moving platform traction motor, and roof support platform support legs.

[0009] Optionally, the cutting head support plate is located at the forefront of the roof support platform. The cutting head support plate cooperates with the hydraulic support for the cutting head support plate to support the roof above the cutting head. The hydraulic support for the cutting head support plate is connected to the hydraulic support support plate.

[0010] Optionally, the cutting head support plate is hingedly installed on the main beam. The hydraulic support support plate is fixed below the main beam. The two ends of the hydraulic support for the cutting head support plate are respectively installed on the cutting head support plate and the hydraulic support support plate. The hydraulic drive for the roadway roof support plate is installed on the main beam, and the roadway roof support plate is arranged at the upper end of the main beam.

[0011] Optionally, the main beam is installed on the support moving platform by using a support beam, a hydraulic drive for the support beam, and a hydraulic support for the main beam. The side guard plates are installed on the roof support platform by using a hydraulic support for the side guard plates. The roof support platform support legs are fixed on the side of the roof support platform. The moving platform traction motor is installed on the roof support platform by using a fixed pin drive motor in cooperation with the fixed pin holes.

[0012] Optionally, the bolt placement platform includes a bolt placement table slidably installed in the platform moving guide groove by using a platform drive hydraulic cylinder, a bolt device support hydraulic cylinder fixed on the bolt placement table, a bolt device fixing plate installed at the front end of the bolt device support hydraulic cylinder, and a bolt device installed on the bolt device fixing plate.

[0013] Optionally, the bolt placement platform is arranged behind the roof support platform. The bolt device is used for drilling holes and placing bolts. The four bolt device support hydraulic cylinders cooperate with each other to change the operating angle of the bolt device. The bolt placement table, the platform drive hydraulic cylinder, and the platform moving guide groove cooperate with each other to enable the bolt device placement platform to move freely in the horizontal direction.

[0014] A coal mining roadheader-anchor support integrated machine provided by the present invention includes a cutting head side protection platform, a roof support platform, and an anchor rod placement platform. Among them, the cutting head side protection platform is arranged above the cutting arm, and the cutting head side protection platform is used to realize the roadway side support of the cutting arm. The roof support platform is located directly above the fuselage, and the anchor rod placement platform is located behind the fuselage. The anchor rod placement platform is used to realize drilling and anchor rod installation. Compared with the existing roadheader-anchor support integrated machines, it has the characteristics of large support area but small body stress, comprehensive support but no impact on normal work, few anchor rod devices but flexible working methods, and can solve the problems that there is a lack of effective large-area temporary support during the tunneling process of the roadheader, the safety of the roadheader body and the staff cannot be guaranteed, and the tunneling work and the anchor rod work cannot be carried out simultaneously, resulting in low work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0016] Figure 1 It is a schematic structural diagram of a coal mining roadheader-anchor support integrated machine according to an embodiment of the present invention;

[0017] Figure 2 It is a schematic structural diagram of a cutting head side protection platform according to an embodiment of the present invention;

[0018] Figure 3 It is a sectional structural diagram of a cutting head side protection platform according to an embodiment of the present invention;

[0019] Figure 4 It is a schematic structural diagram of a roof support platform according to an embodiment of the present invention;

[0020] Figure 5 It is a side view structural diagram of a roof support platform according to an embodiment of the present invention;

[0021] Figure 6 It is a schematic structural diagram of an anchor rod placement platform according to an embodiment of the present invention;

[0022] Figure 7 It is a schematic diagram of the cooperation between a fixing pin and a fixing pin driving motor according to an embodiment of the present invention;

[0023] Figure 8 It is a schematic diagram of the engagement between the main beam and the roadway roof support plate according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0024] To make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings. Apparently, the described embodiments are only a part of the embodiments of the present invention, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the scope of protection of the present invention.

[0025] The following will be combined with Figures 1 to 8 to provide a detailed description of a coal mining roadheader-bolter-loader in an embodiment of the present invention.

[0026] To solve the problems that during the tunneling process of the existing roadheader, the roadheader lacks effective large-area temporary support, cannot ensure the safety of the roadheader body and the staff, and the tunneling work and the bolting work cannot be carried out simultaneously, resulting in low work efficiency, an embodiment of the present invention provides a coal mining roadheader-bolter-loader. Referring to Figure 1 as shown, a coal mining roadheader-bolter-loader in an embodiment of the present invention includes a cutting head side protection platform 1, a roof support platform 3, and a bolt placement platform 4. Among them, the cutting head side protection platform 1 is arranged above the cutting arm, and the cutting head side protection platform 1 is used to realize the rib support of the cutting arm. The roof support platform 3 is located directly above the fuselage, and the bolt placement platform 4 is located behind the fuselage. The bolt placement platform 4 is used to realize drilling and bolt installation.

[0027] Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4As shown in the figure, the cutting head side protection platform 1 includes the cutting head side protection plate support hydraulic pressure 101, the support leg translation drive hydraulic pressure 102, the platform lifting guide plate 103, the support leg fixing rod 104, the cutting head side protection plate 105, the cutting head side protection support platform 106, the support leg 107, the platform fixing hole 108 and the support leg fixing rod guide hole 109. Among them, the cutting head side protection plate support hydraulic pressure 101 is arranged on both sides of the cutting head side protection support platform 106, and the cutting head side protection plate support hydraulic pressure 101 is used to support the four cutting head side protection plates 105 on both sides of the platform; the support leg translation drive hydraulic pressure 102 is arranged on the platform lifting guide plate 103, and the support leg translation drive hydraulic pressure 102 is used to push the support leg fixing rod 104 to stretch in the support leg fixing rod guide hole 109 of the cutting head side protection support platform 106, and cooperate with the support leg 107 arranged under the platform to completely lift the support platform, providing enough working space for the cutting head; the platform lifting guide plate 103 is used to complete the guiding work during the lifting process of the cutting head side protection support platform 106; the cutting head side protection support platform 106 is used to support each device; the support leg 109 is used to support the entire cutting head side protection support platform 106; the platform fixing hole 108 is used to cooperate with the fixing bolts arranged on the cutting arm of the roadheader to fix the cutting head side protection support platform 106; four support leg fixing rod guide holes 109 are arranged on the cutting head side protection support platform 106, and the support leg fixing rod guide hole 109 is used to realize the fixing and guiding functions of the support leg fixing rod 104.

[0028] Reference Figure 1 、 Figure 2 、 Figure 3 And Figure 4 As shown in the figure, the cutting head side protection plate 105 is installed at the front end of the piston rod of the cutting head side protection plate support hydraulic pressure 101, the cutting head side protection plate support hydraulic pressure 101 is installed on the support leg fixing rod 104, the support leg fixing rod 104 is installed on the platform lifting guide plate 103, the platform fixing hole 108 and the support leg fixing rod guide hole 109 are arranged on the cutting head side protection support platform 106, and the platform lifting guide plate 103 is slidably installed in the support leg fixing rod guide hole 109.

[0029] Reference Figure 1 、 Figure 2 、 Figure 3 And Figure 4As shown, slopes are left on both sides of the platform lifting guide plate 103. The lifting and falling of the cutting head side guard support platform 106 are completed through the platform fixing holes 108 and fixing bolts 2 provided on the cutting head side guard support platform 106. When the cutting head side guard support platform 106 is working, first, the support legs 107 are lifted, and the support leg translation drive hydraulic 102 pushes out the support leg fixing rod 104, so that the platform is completely separated from the cutting head part and enough working space is left for the cutting head. Then, the four cutting head side guard plates are supported by the cutting head side guard plate support hydraulic 101 to support the roadway side wall. When the support work is completed, the fixing bolts 2 on the cutting arm are aligned with the platform fixing holes 108, the support legs 107 are shortened, and with the assistance of the platform lifting guide plate 103, the cutting head side guard support platform 106 lands at the initial position, and then each hydraulic rod is retracted to restore to the initial state.

[0030] Reference Figure 1 、 Figure 2 、 Figure 5 And Figure 6 As shown, the roof support platform 3 includes a cutting head support plate 301, a cutting head support plate support hydraulic 302, a support hydraulic support plate 303, a roadway roof support plate drive hydraulic 304, a main beam 305, a support beam 306, a support beam drive hydraulic 307, a main beam support hydraulic 308, a side guard plate 309, a roadway roof support plate 310, a side guard plate support hydraulic 311, a support moving platform 312, a fixed pin drive motor 313, a fixed pin hole 314, a moving platform traction motor 315, and a roof support platform support leg 316. Among them, the cutting head support plate 301 is located at the forefront of the roof support platform 3. The cutting head support plate 301 cooperates with the cutting head support plate support hydraulic 302 to realize the support of the roof above the cutting head. The cutting head support plate support hydraulic 302 is connected to the support hydraulic support plate 303. The cutting head support plate 301 is hinged and installed on the main beam 305. The support hydraulic support plate 303 is fixed below the main beam 305. The two ends of the cutting head support plate support hydraulic 302 are respectively installed on the cutting head support plate 301 and the support hydraulic support plate 303. The roadway roof support plate drive hydraulic 304 is installed on the main beam 305, and the roadway roof support plate 310 is arranged at the upper end of the main beam 305. The main beam 305 is installed on the support moving platform 312 by using the support beam 306, the support beam drive hydraulic 307, and the main beam support hydraulic 308. The side guard plate 309 is installed on the roof support platform 312 by using the side guard plate support hydraulic 311. The roof support platform support leg 316 is fixed on the side of the roof support platform 3. The moving platform traction motor 315 is installed on the roof support platform 3 by using the fixed pin drive motor 313 in cooperation with the fixed pin hole 314.

[0031] Reference Figure 1 、 Figure 2 、 Figure 5 And Figure 6As shown, the roof support platform 3 relies on the support hydraulic support plates 303 installed on the main beam 305 to provide support force, enabling the cutting head support plate support hydraulic pressure 302 to support the cutting head support plate 301 and complete the support work for the roadway roof above the cutting head; as Figure 8 , the main beam 305 is designed as a double-layer structure, connected by multiple short metal columns between the layers, and gaps are left on the two roadway roof support plates 310 so that the two plates can just be inserted into the main beam 305; the four roadway roof support plate drive hydraulics 304 are respectively installed on both sides of the main beam 305 for driving and supporting the two roadway roof support plates 310; the main beam 305, the support beam 306, the support beam drive hydraulic 307 and the main beam support hydraulic 308 constitute the support part of the roof support plate; the side guard plate support hydraulic 311 is placed on both sides of the support platform to support the side guard plate 309 and complete the support of the side wall of the roadway in the body section. The two mobile platform traction motors 315 are on one side of the platform, towing the support mobile platform 312 to move, and driving the fixing pins to insert into the fixing pin holes 314 dug on both sides of the mobile guide rail through the fixing pin drive motor 313 to achieve the function of fixing the support mobile platform 312; the four roof support platform support legs 316 are installed under the platform and are propped up during work to share the force generated by supporting the roadway roof.

[0032] Reference Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8 As shown in

[0033] Reference Figure 1 、 Figure 2 、 Figure 6 、 Figure 7 and Figure 8As shown, the anchor rod device 401 and the hydraulic cylinder 403 for supporting the anchor rod device are both installed on the fixing plate 402 of the anchor rod device, and the anchor rod device 401 is driven to swing left and right by the hydraulic cylinder 403 for supporting the anchor rod device; the hydraulic cylinder 404 for driving the platform is arranged on the anchor rod placement table 405 to push the anchor rod placement table 405 to move in the platform moving guide groove 406. The four hydraulic cylinders 403 for supporting the anchor rod device and the hydraulic cylinder 404 for driving the platform cooperate with each other, enabling the anchor rod placement table 405 to move freely in the horizontal direction and change the working angle, so that the working range of the anchor rod is wider and the working mode is more flexible.

[0034] Reference Figures 1 to 8 As shown, during operation, the roadheader first moves to the designated position. The hydraulic cylinder 102 for translating the support leg pushes the fixing rod 104 of the support leg to extend outward, and the support leg 107 rises, so that the cutting head side protection support platform 106 is completely separated from the roadheader, providing sufficient working space for the cutting head; the support leg 316 of the roof support platform extends and touches the ground to share the support pressure, and relies on the support hydraulic support plate 303 arranged on the main beam 305 to provide support force, so that the cutting head support hydraulic 302 supports the cutting head support plate 301 to complete the support work on the roadway roof above the cutting head. The four hydraulic cylinders 304 for driving the roadway roof support plate arranged on both sides of the main beam 305 are used to drive the roadway roof support plate 310 to unfold, increasing the support area. Relying on the cooperation of the support beam driving hydraulic cylinder 307 and the main beam support hydraulic cylinder 308, the main beam 305 and the support beam 306 are raised according to the characteristics of the roadway roof to provide support force for the roof support work. The side protection plate support hydraulic cylinder 311 provides support force for the side protection plate 309 to realize the support of the roadway sidewall of the machine body section. After completing the temporary support part, the cutting head and the anchor rod equipment work simultaneously. The cutting head, driven by the cutting arm, carries out tunneling work on the front rock. The anchor rod device 401, under the action of the hydraulic cylinder 403 for supporting the anchor rod device and the hydraulic cylinder 404 for driving the platform, changes its position and angle to operate on the position where the anchor rod needs to be installed.

[0035] When it is necessary to continue moving forward, the fixing bolt 2 on the cutting arm aligns with the platform fixing hole, the support leg 107 shortens, and with the assistance of the platform lifting guide plate 103, the cutting head side protection support platform 106 lands on the initial position. The support leg fixing rod 104 retracts under the action of the support leg translation drive hydraulic pressure 102, so that the cutting head side protection support platform 106 partially disengages from the roadway and returns to the cutting arm; the roadway roof support plate drive hydraulic pressure 304, the support beam drive hydraulic pressure 307, and the main beam support hydraulic pressure 308 contract, causing the main beam 305 and the support beam 306 to descend, the side protection plate 309 to disengage from the roadway side wall, and the roadway roof support plate 310 to disengage from the roadway roof; then the side protection plate support hydraulic pressure 311 contracts, and the roadway roof support plate 310 moves towards the central axis of the main beam; the bolt device 401 adjusts and aligns with the next operation position under the action of the bolt device support hydraulic cylinder 403 and the platform drive hydraulic cylinder 404. Through the above actions, the overall support volume is reduced and there is no longer contact with the roadway. After the body moves forward, the support volume is increased by the above work process to complete the support work, and then the excavation and bolting work are continued.

[0036] A coal mining roadheader-bolter-loader provided by the present invention includes a cutting head side protection platform, a roof support platform, and a bolt placement platform. Among them, the cutting head side protection platform is arranged above the cutting arm, and the cutting head side protection platform is used to realize the roadway side wall support of the cutting arm. The roof support platform is located directly above the fuselage, and the bolt placement platform is located behind the fuselage. The bolt placement platform is used to realize drilling and bolt installation. Compared with the existing roadheader-bolter-loader, it has the characteristics of large support area but small body force, comprehensive support but no impact on normal work, few bolt devices but flexible working methods, and can solve the problems that there is a lack of effective large-area temporary support during the tunneling process of the roadheader, the safety of the roadheader body and the staff cannot be guaranteed, and the tunneling work and the bolt work cannot be carried out simultaneously, resulting in low work efficiency.

[0037] It should be understood that the present application is not limited to the exact structure already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present application is only limited by the appended claims.

[0038] Obviously, those skilled in the art can make various changes and modifications to the embodiments of the present invention without departing from the spirit and scope of the embodiments of the present invention. Thus, if these modifications and variations of the embodiments of the present invention fall within the scope of the claims of the present invention and their equivalent technologies, the present invention is also intended to include these changes and modifications.

Claims

1. A combined mining, tunneling, bolting and shotcreting machine, characterized in that The integrated coal mining, tunneling, bolting and support machine includes a cutting head side protection platform, a roof support platform and a bolt placement platform. Among them, the cutting head side protection platform is arranged above the cutting arm, and the cutting head side protection platform is used to realize the rib support of the cutting arm. The roof support platform is located directly above the fuselage, and the bolt placement platform is located behind the fuselage. The bolt placement platform is used to realize drilling and bolt installation; The cutting head side protection platform includes a cutting head side protection plate support hydraulic cylinder, a support leg translation drive hydraulic cylinder, a platform lifting guide plate, a support leg fixed rod, a cutting head side protection plate, a cutting head side protection support platform, a support leg, a platform fixing hole and a support leg fixed rod guide hole. Among them, the cutting head side protection plate support hydraulic cylinders are arranged on both sides of the cutting head side protection support platform, and the cutting head side protection plate support hydraulic cylinders are used to support the four cutting head side protection plates on both sides of the platform; The support leg translation drive hydraulic cylinder is arranged on the platform lifting guide plate, and the support leg translation drive hydraulic cylinder is used to push the support leg fixed rod to expand and contract; The platform lifting guide plate is used to complete the guiding work during the lifting process of the cutting head side protection support platform; The cutting head side protection support platform is used to support each device; The support leg is used to support the entire cutting head side protection support platform; The platform fixing hole is used to cooperate with the fixing bolts arranged on the cutting arm of the roadheader to fix the cutting head side protection support platform; Four support leg fixed rod guide holes are arranged on the cutting head side protection support platform, and the support leg fixed rod guide holes are used to realize the fixing and guiding functions of the support leg fixed rod.

2. The integrated coal mining, tunneling, bolting and support machine according to claim 1, wherein, The cutting head side protection plate is installed at the front end of the piston rod of the cutting head side protection plate support hydraulic cylinder. The cutting head side protection plate support hydraulic cylinder is installed on the support leg fixed rod. The support leg fixed rod is installed on the platform lifting guide plate. The cutting head side protection support platform is provided with a platform fixing hole and a support leg fixed rod guide hole. The platform lifting guide plate is slidably installed in the support leg fixed rod guide hole.

3. The integrated coal mining, tunneling, bolting and support machine according to claim 1 or 2, characterized in that The roof support platform includes a cutting head support plate, a cutting head support plate support hydraulic cylinder, a support hydraulic support plate, a roadway roof support plate drive hydraulic cylinder, a main beam, a support beam, a support beam drive hydraulic cylinder, a main beam support hydraulic cylinder, a side protection plate, a roadway roof support plate, a side protection plate support hydraulic cylinder, a support moving platform, a fixed pin drive motor, a fixed pin hole, a moving platform traction motor, and a roof support platform support leg; The cutting head support plate is located at the forefront of the roof support platform. The cutting head support plate cooperates with the cutting head support plate support hydraulic cylinder to realize the support of the roof above the cutting head. The cutting head support plate support hydraulic cylinder is connected to the support hydraulic support plate; The cutting head support plate is hinged and installed on the main beam. The support hydraulic support plate is fixed below the main beam. Both ends of the cutting head support plate support hydraulic cylinder are installed on the cutting head support plate and the support hydraulic support plate respectively. The roadway roof support plate drive hydraulic cylinder is installed on the main beam, and the roadway roof support plate is arranged at the upper end of the main beam; The main beam is installed on the support moving platform by using a support beam, a support beam drive hydraulic cylinder and a main beam support hydraulic cylinder. The side protection plate is installed on the roof support platform by using a side protection plate support hydraulic cylinder. The roof support platform support leg is fixed on the side of the roof support platform. The moving platform traction motor is installed on the roof support platform by using a fixed pin drive motor and cooperating with a fixed pin hole.

4. The coal mining, tunneling, bolting and shotcreting machine according to claim 1 or 2, characterized in that, The bolt placement platform includes a bolt placement table slidably installed in a platform moving guide groove by a platform driving hydraulic cylinder, a bolt device support hydraulic cylinder fixed on the bolt placement table, a bolt device fixing plate installed at the front end of the bolt device support hydraulic cylinder, and a bolt device installed on the bolt device fixing plate; The bolt placement platform is arranged behind the roof support platform, and the bolt device is used for drilling and placing bolts; the four bolt device support hydraulic cylinders cooperate with each other to change the working angle of the bolt device; the bolt placement table, the platform driving hydraulic cylinder and the platform moving guide groove cooperate with each other to enable the bolt placement platform to move freely in the horizontal direction.

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