Control method of cutting groove raise boring machine

Abstract

The invention provides a control method of a cutting groove raise boring machine, which belongs to the technical field of mining equipment and comprises the following steps of: moving the cutting groove raise boring machine to a specified position of a mine hole; a main machine assembly of the cutting groove raise boring machine is unfolded; and then a first jacking and supporting mechanism at the upper end of the main machine assembly and a second jacking and supporting mechanism at the lower end of the main machine assembly are controlled to extend, and each supporting leg of the first jacking and supporting mechanism and each supporting leg of the second jacking and supporting mechanism are independently adjusted till each supporting leg abuts against the mine hole. According to the control method provided by the embodiment of the invention, each supporting leg can be ensured to abut against the mine hole by independently adjusting each supporting leg, so that the supporting stability and reliability are ensured, the condition that part of supporting legs are not supported is completely eradicated, and the machining precision is further improved.

Description

Technical Field

[0001] The invention belongs to the technical field of mining equipment, and in particular relates to a control method for a cutting slot raise boring machine. Background Art

[0002] Cutting slot raise drilling rigs are mainly used in the construction of railways, highways, bridges and other projects. They are used for the expansion of deep foundation holes, cracks or transition seams, as well as for expansion and blasting in mine maintenance. The working principle of the cutting slot raise drilling rig is to cut the material by rotating the drill bit, and then use wind pressure or compressed air to suck the material out of the hole. The cutting slot drill rig is suitable for geological conditions with hard geological conditions, high drilling quality and high efficiency. Its characteristics are that the construction well diameter and depth are small, and the construction site needs to be frequently transferred. Before the construction of conventional raise drilling rigs, it is necessary to pour a concrete foundation to install and fix the main machine. The cost of the concrete foundation is high and the construction period is long. In the construction of the cutting raise, it accounts for a large economic and time cost. The cutting slot raise drilling rig can effectively make up for the shortcomings of conventional raise drilling rigs.

[0003] When the cutting slot raise drilling machine is working, the top of the mine hole is supported by the top and bottom supports, and then the cutting slot is constructed downward or upward. Due to the unsatisfactory flatness of the mine hole, the four legs of the top and bottom supports cannot completely and effectively abut the mine hole, and some legs are not effectively supported, which affects the processing accuracy. Summary of the invention

[0004] The present invention aims to solve at least one of the above technical problems existing in the prior art. To this end, the present invention provides a control method for a cutting slotted borer, which can solve the problem that some legs are not supported, thereby improving the processing accuracy.

[0005] A control method for a cutting slot raise boring machine according to an embodiment of the present invention includes:

[0006] The cutting slot raise boring machine moves to the designated position of the mine cave;

[0007] Deploying the main machine assembly of the cutting groove raise boring machine;

[0008] Then, the first supporting mechanism at the upper end and the second supporting mechanism at the lower end of the main machine assembly are controlled to extend, and each supporting leg of the first supporting mechanism and the second supporting mechanism is adjusted individually until each supporting leg abuts against the mine hole.

[0009] The control method of the cutting slot shaft drilling rig according to the embodiment of the present invention has at least the following beneficial effects: the control method of this embodiment can ensure that each support leg abuts the mine hole by independently adjusting each support leg, thereby ensuring the stability and reliability of the support and eliminating the situation where some support legs are not supported.

[0010] According to some embodiments of the present invention, when controlling the first supporting mechanism and the second supporting mechanism to extend, the first supporting mechanism and the second supporting mechanism are first controlled to extend synchronously to a first distance, and then each of the supporting legs is controlled to extend to abut against the mine hole.

[0011] According to some embodiments of the present invention, the main engine assembly is provided with a hydraulic cylinder corresponding to each of the legs, and the control method comprises: when the legs abut against the mine hole, controlling the hydraulic cylinder to stop.

[0012] According to some embodiments of the present invention, the main engine assembly is provided with a pressure sensor on the support leg, and the control method comprises: obtaining a detection value of the pressure sensor, and controlling the hydraulic cylinder to stop when the detection value reaches a set value.

[0013] According to some embodiments of the present invention, the support legs are detachably provided with support seats, and the control method further comprises: replacing the support seats before unfolding the host assembly.

[0014] According to some embodiments of the present invention, the support leg is rotatably provided with a support seat, and the end surface of the support seat is provided with a plurality of protrusions of different heights around the axis of the support leg; the control method further comprises: before adjusting the support leg to abut against the mine hole, controlling the rotation of the support seat according to the shape of the side wall of the mine hole opposite to the support leg and the angle between the support leg and the side wall of the mine hole, so that each of the support legs has at least one protrusion abutting against the mine hole.

[0015] According to some embodiments of the present invention, when the main engine assembly is deployed, the main engine assembly is controlled to rotate to a processing surface that is vertical or nearly vertical to the cutting groove according to the inclination angles of the top and bottom of the mine hole and the design parameters of the cutting groove, and then the support legs are controlled to abut the mine hole.

[0016] According to some embodiments of the present invention, the control method further comprises: after the legs of the first supporting mechanism and the second supporting mechanism abut against the mine hole, installing a drill rod, and drilling to a set depth according to design parameters of the cutting groove.

[0017] According to some embodiments of the present invention, the control method further comprises: after the cutting groove is processed and the drill rod is disassembled, first controlling the first supporting mechanism to retract, and then controlling the second supporting mechanism to retract.

[0018] According to some embodiments of the present invention, a support seat is arranged at the end of the support leg, a first flange is arranged on the support leg, a ball head structure is arranged on the central protrusion of the first flange, a second flange is arranged on the support seat, a ball head recess is arranged on the center of the second flange, the first flange and the second flange are locked by bolts, and when the ball head recess is in contact with the ball head structure, there is a distance between the first flange and the second flange, an elastic member is sleeved on the bolt between the first flange and the second flange, and the support seat can swing relative to the axis of the support leg under the action of external force.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description, and some additional aspects and advantages will become obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 A schematic diagram of a control method in this application;

[0022] Figure 2 A schematic diagram of the overall structure of this application;

[0023] Figure 3 A structural schematic diagram of a support seat;

[0024] Figure 4 A schematic diagram of the installation of the support base;

[0025] Figure 5 This is a schematic diagram of a setting of the first hydraulic system in this application. DETAILED DESCRIPTION

[0026] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0027] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0028] In the description of the present invention, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed", etc. are understood to exclude the number itself, and "above", "below", "within", etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0029] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0030] In the description of the present invention, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0031] Cutting slot raise drilling rigs are mainly used in the construction of railways, highways, bridges and other projects. They are used for the expansion of deep foundation holes, cracks or transition seams, as well as for expansion and blasting in mine maintenance. The working principle of the cutting slot raise drilling rig is to cut the material by rotating the drill bit, and then use wind pressure or compressed air to suck the material out of the hole. The cutting slot drill rig is suitable for geological conditions with hard geological conditions, high drilling quality and high efficiency. Its characteristics are that the construction well diameter and depth are small, and the construction site needs to be frequently transferred. Before the construction of conventional raise drilling rigs, it is necessary to pour a concrete foundation to install and fix the main machine. The cost of the concrete foundation is high and the construction period is long. In the construction of the cutting raise, it accounts for a large economic and time cost. The cutting slot raise drilling rig can effectively make up for the shortcomings of conventional raise drilling rigs.

[0032] When the cutting slot raise drilling machine is working, the top of the mine hole is supported by the top and bottom supports, and then the cutting slot is constructed downward or upward. Due to the unsatisfactory flatness of the mine hole, the four legs of the top and bottom supports cannot completely and effectively abut the mine hole, and some legs are not effectively supported, which affects the processing accuracy.

[0033] To this end, the present invention provides a control method for a cutting slot skylight drilling machine, which can solve the problem that some legs are not supported and improve the processing accuracy.

[0034] Reference Figure 1, an embodiment of the present invention provides a control method for a cutting slot raise boring machine, comprising:

[0035] The cutting slot raise boring machine moves to the designated position of the mine cave;

[0036] The main machine assembly 200 of the cutting slot raise boring machine is deployed;

[0037] Then, the first supporting mechanism 301 at the upper end and the second supporting mechanism 302 at the lower end of the mainframe assembly 200 are controlled to extend, and each supporting leg 304 of the first supporting mechanism 301 and the second supporting mechanism 302 is individually adjusted until each supporting leg 304 abuts against the mine hole.

[0038] It is understandable that the first supporting mechanism 301 and the second supporting mechanism 302 in this embodiment are also provided with a plurality of supporting legs 304. In this embodiment, by adjusting the extension of each supporting leg 304 individually, it is possible to ensure that each supporting leg 304 abuts against the mine hole. Compared with the synchronously retractable structure in the traditional structure, in this embodiment, there will be no situation where some supporting legs abut against the mine hole and some supporting legs do not abut against the mine hole.

[0039] Therefore, the control method of this embodiment can ensure that each support leg 304 abuts the mine hole by independently adjusting each support leg 304, thereby ensuring the stability and reliability of the support, eliminating the situation where some support legs are not supported, and thus improving the processing accuracy.

[0040] In order to facilitate understanding of the present control method, a specific structure of a cutting slotted shaft boring machine is described in detail below.

[0041] Reference Figures 2 to 5 , an embodiment of the present invention provides a cutting slot raise boring machine, comprising:

[0042] Chassis 100;

[0043] A traveling assembly 200 , which is disposed at the bottom of the chassis 100 ;

[0044] The main machine assembly 300 is rotatably disposed at the front end of the chassis 100. The main machine assembly 300 is provided with a first supporting mechanism 301 and a second supporting mechanism 302. The first supporting mechanism 301 and the second supporting mechanism 302 are provided with a plurality of supporting legs 304 that can be independently extended in opposite directions, and the ends of the supporting legs 304 are provided with supporting seats 303;

[0045] The support base 303 is detachably connected to the support leg 304 ; and / or, the support base 303 is rotatably connected to the support leg 304 , and a plurality of convex portions 3031 with different heights are arranged on the end surface of the support base 303 around the support leg 304 .

[0046] It is understandable that the support base 303 has at least the following two configurations:

[0047] One is that the support seat 303 is detachably arranged at the end of the leg 304. Since the support seat 303 is usually a disc structure, the detachable arrangement can be used to replace support seats 303 of different sizes according to actual support needs, and can also be used to replace support seats 303 with different thicknesses.

[0048] Secondly, the support seat 303 is rotatably arranged at the end of the support leg 304, and a plurality of convex parts 3031 of different heights are arranged on the end surface of the support seat 303. With the convex parts 3031 of different heights, the convex parts 3031 that are actually in contact with the mine hole can be adjusted by rotating the support seat 303. For example, when there is a small gap between the support leg 304 and the side wall of the mine hole, the support seat 303 can be rotated to change the position of the convex parts 3031, so that the convex parts 3031 with higher heights abut against the mine hole, thereby ensuring effective support.

[0049] The first supporting mechanism 301 is provided with four independently retractable first supporting legs at the four corners of the main assembly 300, and the second supporting mechanism 302 is provided with four independently retractable second supporting legs at the four corners of the main assembly 300, and the first supporting legs and the second supporting legs are coaxially arranged. In this embodiment, the overall volume can be reduced by coaxially arranging the first supporting legs and the second supporting legs to avoid excessive volume.

[0050] In order to realize independent telescopic control of each leg 304, each first leg includes a first hydraulic cylinder 3011, and each second leg includes a second hydraulic cylinder 3021. In this way, the telescopic adjustment of each first leg and second leg can be correspondingly adjusted by only controlling the first hydraulic cylinder 3011 and the second hydraulic cylinder 3021.

[0051] Reference Figure 5 The cutting groove skylight drilling rig includes a first hydraulic system, which includes a first oil inlet connected to the oil tank and a second oil inlet connected between the first oil inlet and each of the first hydraulic cylinders 3011 and the second hydraulic cylinder 3021. The first hydraulic system is provided with solenoid valves on the first oil inlet and the second oil inlet to control the opening and closing of the first oil inlet and the second oil inlet.

[0052] During operation, when it is necessary to control the four first support legs of the first supporting mechanism 301 to extend, the solenoid valve controls the first oil inlet circuit and the second oil inlet circuit to be fully opened to achieve full extension. When it is necessary to control a single first support leg to extend, the solenoid valve controls the first oil inlet circuit to open, and at the same time only the second oil inlet circuit corresponding to the first support leg is opened, and the other second oil inlet circuits can be closed.

[0053] Furthermore, in order to ensure the stability of oil inlet, an accumulator is provided on the first oil inlet line, and a throttle valve is provided on the second oil inlet line, so as to ensure the stability of the oil pressure in the oil circuit during the opening and closing process of the solenoid valve.

[0054] Reference Figure 4 The leg 304 is provided with a first flange, a ball head structure 3041 is provided at the center of the first flange, the support seat 303 is provided with a second flange, a ball head recess 3032 is provided at the center of the second flange, and the first flange and the second flange are locked by bolts 305. With the structural setting of this embodiment, the ball head structure 3041 and the ball head recess 3032 can be used to position the leg 304 and the support seat 303, and then the bolts 305 are used to lock, so that the support seat 303 can be quickly disassembled and replaced.

[0055] Reference Figure 4 When the ball head recess 3032 is in contact with the ball head structure 3041, there is a distance between the first flange and the second flange, and the bolt 305 is provided with an elastic member 306 between the first flange and the second flange, and the support seat 303 can swing relative to the axis of the support leg 304 under the action of external force.

[0056] It is understandable that the leg 304 and the support seat 303 in this embodiment can rotate relative to each other due to the contact between the ball head structure 3041 and the ball head recess 3032. Based on the ball head cooperation, the first flange and the second flange are contacted by the elastic member 306, so that the first flange and the second flange can swing relative to each other, but at the same time, due to the locking of the bolt 305, the swing angle is limited, so it can only swing within a limited range. In the actual setting, it is preferred to limit the swing angle of the support seat 303 relative to the leg 304 to 5° and less than 5°. With the structural setting of this embodiment, in addition to being able to use the main assembly 300 to rotate and change the angle of the first supporting mechanism 301 and the second supporting mechanism 302, when the support seat 303 abuts against the mine, the angle of the support seat 303 can be adaptively adjusted under the action of external force, thereby ensuring the stability of the support.

[0057] A pressure sensor is arranged between the support seat 303 and the support leg 304. During operation, the pressure sensor can be used to determine whether the support force of each support leg 304 of the first support mechanism 301 and the second support mechanism 302 on the mine hole is uniform.

[0058] The elastic member 306 can be a spring, a disc spring, a spring washer, etc.

[0059] Reference Figure 3 The convex part 3031 is a cone part arranged around the axis of the support leg 304. The cone part abuts against the mine hole and can be pressed into the side wall (bottom and top) of the mine hole to improve the stability of the support. In addition, since the convex part 3031 is arranged circumferentially, that is, there are multiple cone parts, when pressing into the side wall of the mine hole, multiple pressings are made, and the stability is high.

[0060] The traveling assembly 200 is a crawler traveling structure or a wheeled traveling structure.

[0061] The cutting groove skydrilling machine further comprises a hydraulic station, which is fixedly arranged on the chassis 100 .

[0062] In some embodiments of the present invention, a driving worm is provided at the end of the leg 304, the support seat 303 is rotatably connected to the end of the leg 304, and the support seat 303 is provided with a transmission tooth that engages with the driving worm. When working, the rotation control of the support seat 303 can be realized by only controlling the rotation of the driving worm.

[0063] In some embodiments of the present invention, when controlling the first supporting mechanism and the second supporting mechanism to extend, the first supporting mechanism and the second supporting mechanism are first controlled to extend synchronously to a first distance, and then each supporting leg is controlled to extend to abut against the mine hole. This can effectively increase the deployment speed.

[0064] Furthermore, when controlling the leg support to stop, the detection value of the pressure sensor is obtained, and the hydraulic cylinder is controlled to stop when the detection value reaches a set value, so that the pressure of each leg support can be ensured to be uniform.

[0065] In some embodiments of the present invention, the control method further comprises: replacing the support base with a support base of a suitable size before unfolding the mainframe assembly.

[0066] In some embodiments of the present invention, the control method further includes: before adjusting the support legs to abut against the mine hole, according to the shape of the side wall of the mine hole opposite to the support legs and the angle between the support legs and the side wall of the mine hole, controlling the support seat to rotate so that each support leg has at least one convex portion abutting against the mine hole. In this embodiment, by rotating the support seat, convex portions of different heights can be made to face the concave and convex areas of the side wall of the mine hole, thereby making each support leg have multiple convex portions abutting against the mine hole, thereby improving the support stability.

[0067] In some embodiments of the present invention, when the main machine assembly is deployed, the main machine assembly is controlled to rotate to a processing surface that is vertical or nearly vertical to the cutting groove according to the inclination angles of the top and bottom of the mine hole and the design parameters of the cutting groove, and then the legs are controlled to abut the mine hole. Since the legs are arranged parallel to the drill rod, the processing accuracy is improved by controlling the processing surface of the vertical cutting groove.

[0068] In some embodiments of the present invention, the control method further comprises: after the legs of the first supporting mechanism and the second supporting mechanism abut against the mine hole, installing the drill rod and drilling to a set depth according to the design parameters of the cutting groove. After the cutting groove is processed and the drill rod is disassembled, the first supporting mechanism is controlled to retract first, and then the second supporting mechanism is controlled to retract.

[0069] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A control method for a cutting slot raise boring machine, characterized in that: include: The cutting slot raise boring machine moves to the designated position of the mine cave; Deploying the main machine assembly of the cutting groove raise boring machine; Then, the first supporting mechanism at the upper end and the second supporting mechanism at the lower end of the main machine assembly are controlled to extend, and each supporting leg of the first supporting mechanism and the second supporting mechanism is adjusted individually until each supporting leg abuts against the mine hole.

2. The control method of the cutting slot raise boring machine according to claim 1, characterized in that: When controlling the first supporting mechanism and the second supporting mechanism to extend, the first supporting mechanism and the second supporting mechanism are first controlled to extend synchronously to a first distance, and then each of the supporting legs is controlled to extend to abut against the mine hole.

3. The control method of the cutting slot raise boring machine according to claim 2, characterized in that: The main engine assembly is provided with a hydraulic cylinder corresponding to each of the legs, and the control method comprises: when the legs abut against the mine hole, controlling the hydraulic cylinder to stop.

4. The control method of the cutting slot raise boring machine according to claim 3, characterized in that: The main engine assembly is provided with a pressure sensor on the support leg, and the control method comprises: obtaining a detection value of the pressure sensor, and controlling the hydraulic cylinder to stop when the detection value reaches a set value.

5. The control method of the cutting groove raise boring machine according to claim 1, characterized in that: The support legs are detachably provided with support seats, and the control method further comprises: replacing the support seats before unfolding the mainframe assembly.

6. The control method of the cutting slot raise boring machine according to claim 1, characterized in that: The support leg is rotatably provided with a support seat, and the end surface of the support seat is provided with a plurality of protrusions of different heights around the axis of the support leg; the control method also includes: before adjusting the support leg to abut against the mine hole, controlling the rotation of the support seat according to the shape of the side wall of the mine hole opposite to the support leg and the angle between the support leg and the side wall of the mine hole, so that each of the support legs has at least one protrusion abutting against the mine hole.

7. The control method of the cutting slot raise boring machine according to claim 1, characterized in that: When the main machine assembly is deployed, the main machine assembly is controlled to rotate to a processing surface that is vertical or nearly vertical to the cutting groove according to the inclination angles of the top and bottom of the mine hole and the design parameters of the cutting groove, and then the support legs are controlled to abut the mine hole.

8. The control method of the cutting slot raise boring machine according to claim 1, characterized in that: The control method further comprises: after the legs of the first supporting mechanism and the second supporting mechanism abut against the mine hole, installing a drill rod and drilling to a set depth according to design parameters of the cutting groove.

9. The control method of the cutting slot raise boring machine according to claim 1, characterized in that: The control method further includes: after the cutting groove is processed and the drill rod is disassembled, first controlling the first supporting mechanism to retract, and then controlling the second supporting mechanism to retract.

10. The control method of the cutting slot raise boring machine according to claim 1, characterized in that: A support seat is arranged at the end of the support leg, and a first flange is arranged on the support leg, a ball head structure is arranged on the central protrusion of the first flange, a second flange is arranged on the support seat, a ball head recess is arranged at the center of the second flange, the first flange and the second flange are locked by bolts, and when the ball head recess is in contact with the ball head structure, there is a distance between the first flange and the second flange, and an elastic member is sleeved on the bolt between the first flange and the second flange, and the support seat can swing relative to the axis of the support leg under the action of external force.

Images