Row support of drilling machine with anchor in middle
By forming a joist-free zone in the middle of the grid bracket and setting up a support assembly, the problems of forward tilting and jitter of the anchor drill rig are solved, and more efficient excavation speed and stability are achieved, and the anchor hole strike efficiency is improved.
Patent Information
- Application Number
- CN202422103036.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-28
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-08-28
AI Technical Summary
The existing tray brackets are prone to dumping and jittering when the anchor drill rig is moved forward, and the existing process is difficult to significantly reduce working time and improve the excavation speed.
By improving the structure of the tray bracket, the joist-free zone is formed in the middle, the anchor drill hanger is installed, and support components are installed in the joist-free zone, increasing the length of the slide, allowing the anchor drill hanger to slide, achieving multiple movements of the anchor drill rig and multiple rows of anchor hole strikes.
The excavation speed is improved, the auxiliary time is reduced by nearly 40%, and a more efficient excavation process is achieved, the number of excavation cycles is increased, and the stability and working efficiency of the equipment are improved.
Smart Images
Figure CN223177566U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of underground mining equipment, and more specifically, to a row-connected support with an anchor drill in the middle part. Background Art
[0002] In the prior art, an anchor drill is installed on a row-connected support to make the work of drilling bolt holes as mechanized as possible and improve the tunneling speed. As a result, two top beams of the support are occupied, and the top beam of the support is used as the outer sleeve of the telescopic beam. The two telescopic beams can extend forward. The anchor drill hanging bracket for carrying the anchor drill is installed in front of the frontmost support beam of the row-connected support. Two anchor drills are placed horizontally on the cross beam of the anchor drill hanging bracket. The anchor drills can move horizontally on the cross beam of the anchor drill hanging bracket. For each tunneling cycle of the roadheader, the two anchor hole drills horizontally drill a row of bolt holes and install the bolts at the same time. This tunneling process of drilling a row of anchor holes on the roof and installing and fixing the bolts at a distance of one tunneling cycle step is called one tunneling and one bolting. (Tunneling refers to the tunneling work of the roadheader, and bolting refers to the work of drilling bolt holes and installing bolts by the anchor drill.)
[0003] When drilling bolt holes by this process, the roadheader needs to retreat backward from the working area of the anchor drill. Although the degree of mechanization is improved, the working time is almost the same as that of manual work and is not significantly reduced. Therefore, it is generally not adopted by the mining side.
[0004] Then, a process is developed in which the hanging bracket of the anchor drill in front of the support beam can move forward by one step distance, and the anchor drill can drill two rows of anchor holes at one time. If the hanging bracket of the anchor drill can move forward by two step distances, the anchor drill can drill three rows of anchor holes at one time. This process is called three tunneling and one bolting. Although this process requires the roadheader to retreat from the bolt hole drilling station, the roadheader continuously tunnels three cycles at one time, reducing the auxiliary working time such as two stops and waits, personnel in and out, air supply and water supply to the anchor drill, air stop and water stop twice, and improving the efficiency.
[0005] However, abnormal conditions are likely to occur in the support at this time. Because the weight of the two anchor drills plus the anchor drill hanging bracket reaches about 5 tons. As Figure 2 shown, if two more step distances, that is, about two meters, are extended in the frontmost part of the support, the support is prone to forward tipping when moving forward and the problem of support shaking occurs during work. Because the weight and length of the tunneling support are basically fixed structures, and this cantilever beam structure makes the center of gravity of the equipment move forward close to the balance limit. This also determines the forward movement distance of the anchor drill hanging bracket, and it is difficult to achieve better results by further tapping potential. Summary of the Utility Model
[0006] In view of this, the purpose of the present utility model is to provide an improved row-connected bracket for an anchor drill. The structure provided by the present utility model, after improving the structure of the row-connected bracket, enables a section of the interval without a supporting beam to be formed in the middle of the row-connected bracket. The anchor drill hanging bracket for installing the anchor drill is arranged in the interval without a supporting beam of the row-connected bracket. At this time, there is a supporting component in front of the anchor drill hanging bracket, and there is also a supporting component behind the anchor drill hanging bracket. Compared with being arranged on the front-end cantilever beam of the row-connected bracket, the structure is more stable.
[0007] To achieve the above effects, the technical solution of the present utility model is as follows:
[0008] A row-connected bracket with an anchor drill in the middle, comprising a first row-type bracket and a second row-type bracket. Both the first row-type bracket and the second row-type bracket include at least two top beams and at least two supporting beams. The top beams and the supporting beams are arranged in a cross pattern, with the top beams located above the supporting beams. The top beams of the two row-type brackets are distributed alternately. A propulsion cylinder is arranged between the two row-type brackets, and the propulsion cylinder pushes or pulls the first row-type bracket and the second row-type bracket to move forward relative to each other;
[0009] First supporting components are arranged below the left and right sides of the first row-type bracket, and second supporting components are arranged below the left and right sides of the second row-type bracket. The first supporting components and the second supporting components are distributed alternately, and an interval without a supporting beam for arranging the anchor drill hanging bracket is formed between at least one of the first supporting components and its adjacent second supporting component;
[0010] An anchor drill hanging bracket is installed at the bottom of the top beam of the first row-type bracket or the second row-type bracket in the interval without a supporting beam, and an anchor drill is connected to the anchor drill hanging bracket.
[0011] Further, a slideway is arranged at the bottom of the top beam in the interval without a supporting beam. A slide block adapted to the slideway is arranged at the top of the anchor drill hanging bracket. The slide block is arranged on the slideway and can move back and forth along the slideway.
[0012] Further, the slideway is in an inverted T shape or an inverted V shape.
[0013] Further, a long slot is opened on the bottom plate of the top beam, and a slide block capable of sliding in the long slot is arranged at the top of the anchor drill hanging bracket.
[0014] Further, two or more anchor drill hanging brackets are installed at the bottom of the top beam in the interval without a supporting beam, and they can be all connected to the top beam of the first row-type bracket, or all connected to the top beam of the second row-type bracket, or some are connected to the top beam of the first row-type bracket and some are connected to the top beam of the second row-type bracket.
[0015] Further, the anchor drill hanging bracket is fixed at the bottom of the top beam in the interval without a supporting beam.
[0016] Further, an anchor drill hanger is also provided in front of the foremost joist, and an anchor drill is installed on the anchor drill hanger.
[0017] Further, the anchor drill is fixed on the anchor drill hanger.
[0018] Further, the anchor drill is slidably connected to the anchor drill hanger.
[0019] The beneficial effects of the present utility model are as follows:
[0020] For the row-connected support with an anchor drill in the middle provided by the present utility model, after improving the structure of the row-connected support, an area without a joist for setting the anchor drill hanger can be formed in the middle of the row-connected support. The anchor drill hanger for installing the anchor drill is arranged in the area without a joist of the row-connected support. At this time, there is a support assembly in front of the anchor drill hanger and also a support assembly behind the anchor drill hanger. Compared with the situation where the anchor drill is arranged on the front cantilever beam of the row-connected support, the structure is more stable;
[0021] At the same time, under the conditions of the same support materials and the same anchor drills, compared with the existing structure where the anchor drill hanger is slidably arranged on the cantilever beam extending forward of the support, when the anchor drill hanger of the present utility model is slidably arranged at the bottom of the top beam in the area without a joist, since there are support assemblies at both the front and rear ends of the area without a joist, the slideway can be lengthened by one time or more. That is, the original structure where the anchor drill can move forward two step distances and drill three rows of bolt holes, now with the same set of anchor drill hanger and two anchor drills, it can slide forward four step distances at a time and drill five rows of bolt holes. The corresponding tunneling process is five tunneling and one anchoring, that is, the roadheader continuously tunnels for five cycle lengths, and the two anchor drills move forward four step distances driven by the anchor drill hanger. In this way, compared with the prior art, the progress of two tunneling cycles is increased, and the auxiliary time is reduced by nearly 40%, and the process operation of more tunneling and one anchoring can be realized. Description of the Drawings
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other embodiments can also be obtained based on these drawings.
[0023] Figure 1 It is a bottom view of the existing tunneling self-moving support.
[0024] Figure 2 It is a schematic structural diagram of the existing anchor drill arranged in front of the tunneling self-moving support.
[0025] Figure 3 It is a bottom view of the row-connected support with an anchor drill in the middle provided by the first embodiment of the present utility model.
[0026] Figure 4 It is the front view of the row support of the middle-anchored drill provided by the first embodiment of the present utility model.
[0027] Figure 5 It is a schematic diagram of the connection structure between the slideway and the slider under the top beam provided by the first embodiment of the present utility model Figure 1 .
[0028] Figure 6 It is a schematic diagram of the connection structure between the slideway and the slider under the top beam provided by the first embodiment of the present utility model Figure 2 .
[0029] Figure 7 It is the front view of the row support of the middle-anchored drill provided by the second embodiment of the present utility model.
[0030] Figure 8 It is the front view of the row support of the middle-anchored drill provided by the third embodiment of the present utility model.
[0031] Figure 9 It is the front view of the row support of the middle-anchored drill provided by the fourth embodiment of the present utility model.
[0032] Figure 10 It is a schematic front view of the row support of the middle-anchored drill provided by the fifth embodiment of the present utility model Figure 1 .
[0033] Figure 11 It is a schematic front view of the row support of the middle-anchored drill provided by the fifth embodiment of the present utility model Figure 2 .
[0034] Explanation of reference numerals:
[0035] 1. First row support; 2. Second row support; 3. Top beam; 4. Supporting beam; 5. First support assembly; 6. Second support assembly; 7. Beamless area; 8. Anchor drill hanger; 9. Anchor drill; 10. Slideway; 11. Slider; 12. Bolt; 13. Propelling cylinder; 14. Long slot. Detailed implementation manners
[0036] The following combines the description of the accompanying drawings to explain and illustrate in detail the structure provided by the present utility model.
[0037] This embodiment specifically discloses a row support for a middle-anchored drill, as Figure 1As shown, it includes a first row-type support 1 and a second row-type support 2. Both the first row-type support 1 and the second row-type support 2 include at least two top beams 3 and at least two crossbeams 4. The top beams 3 and the crossbeams 4 are arranged in a cross pattern. In this embodiment, the top beams 3 and the crossbeams 4 intersect at a 90° angle, and the top beams 3 are located above the crossbeams 4. The top beams 3 of the two row-type supports are distributed alternately. A propulsion cylinder 13 is provided between the two row-type supports. The propulsion cylinder 13 can be a hydraulic propulsion cylinder, an electric propulsion cylinder, a pneumatic propulsion cylinder, etc. The propulsion cylinder 13 pushes or pulls the first row-type support 1 and the second row-type support 2 to move forward relatively;
[0038] First support assemblies 5 are arranged below the left and right sides of the first row-type support 1, and second support assemblies 6 are arranged below the left and right sides of the second row-type support 2. In this embodiment, the tops of the first support assemblies 5 and the second support assemblies 6 are connected to the crossbeams 4 at the corresponding positions. Both the first support assemblies 5 and the second support assemblies 6 can be hydraulic jacks, which can provide strong support and can contract when moving forward, cooperating with the propulsion cylinder 13 to facilitate forward movement.
[0039] Specifically, the roadheader advances a certain distance in front of the support, and then the row-type support moves forward. The specific forward movement method is as follows: By contracting the first support assembly 5 below one of the row-type supports, such as the first row-type support 1, the first row-type support 1 is disengaged from the support of the working face top surface. At this time, the second row-type support 2 provides support force for this self-moving support. Under the pushing action of the propulsion cylinder 13, the first row-type support 1 can slide relative to the second row-type support 2 to achieve forward movement. After moving, the first support assembly 5 of the first row-type support 1 can extend to play a supporting role, and the second row-type support 2 moves forward in the same way. The top beams 3 of the two row-type supports are distributed alternately, ensuring that when one row-type support moves forward, the other row-type support can still evenly support the working face top surface without large-area roof fall.
[0040] Such as Figure 3 and 4 As shown, they are the bottom view and the front view of the first embodiment of the present utility model. The first support assemblies 5 and the second support assemblies 6 are distributed alternately, and at least one first support assembly 5 and the adjacent second support assembly 6 form a beamless area 7 where an anchor drill hanger can be arranged;
[0041] Specifically, in Figure 3 and Figure 4Among them, all the support components are divided into two groups along the forward movement direction of the row-type support. An unlined beam area 7 is formed between the front and rear groups. An anchor drill hanger 8 is installed on the top beam 3 in the unlined beam area 7 for the first row-type support 1 or the second row-type support 2, mainly installed at the bottom of the top beam 3. An anchor drill 9 is connected to the anchor drill hanger 8. The anchor drill hanger 8 and the anchor drill 9 are arranged in the middle of the support. At this time, there are support components in front of the anchor drill hanger 8 and also support components behind the anchor drill hanger 8. Compared with the structure where the anchor drill 9 is arranged on the front cantilever beam of the row support, the structure is more stable.
[0042] Furthermore, in this embodiment, the anchor drill hanger 8 is slidably installed at the bottom of the top beam 3, that is, it can slide back and forth along the bottom of the top beam 3, so as to facilitate driving the anchor drill 9 to move along the length direction of the roadway of the support, drilling multiple rows of anchor holes at one time, and improving work efficiency.
[0043] Under the condition of the same support materials and the same anchor drill 9, compared with the existing structure where the anchor drill hanger 8 is slidably arranged on the front-extending cantilever beam of the support, in this embodiment, when the anchor drill hanger 8 is slidably arranged at the bottom of the top beam 3 in the unlined beam area 7, since there are support components at both the front and rear ends of the unlined beam area 7, the unlined beam area 7 can be doubled or longer. That is, the original structure where the anchor drill 9 can move forward two step distances to drill three rows of bolt holes, now with the same set of anchor drill hanger 8 and two anchor drills 9, it can slide forward four step distances at one time to drill five rows of anchor holes. The corresponding tunneling process is five tunneling and one bolting, that is, the roadheader continuously tunnels for five cycle lengths, and the two anchor drills 9 move forward four step distances driven by the anchor drill hanger 8. In this way, compared with the prior art, the progress of two tunneling cycles is increased, and the auxiliary time is reduced by nearly 40%, and the process operation of multi-tunneling and one bolting can be realized.
[0044] In this embodiment, the anchor drill 9 is slidably connected to the anchor drill hanger 8, that is, it slides horizontally with the anchor drill hanger 8 as the track. The anchor drill 9 can move horizontally along the anchor drill hanger 8, so as to drill multiple horizontal anchor holes. Usually, 2 horizontally moving anchor drills 9 can be installed on one anchor drill hanger 8. This is to avoid interference with the roadheader when the roadheader enters and exits the working face, with one anchor drill on each side leaning against the side wall position. If the roadway has enough width, more anchor drills can be placed. In some other embodiments, the anchor drill 9 can also achieve horizontal displacement through other horizontal movement mechanisms.
[0045] Reference Figure 5As shown, in this embodiment, the longitudinal movement structure diagram of the anchor drill hanging rack 8 is shown. That is, a slideway 10 is provided at the bottom of the top beam 3 in the non-support beam area 7. The slideway 10 is in an inverted T shape or an inverted V shape. In the illustrated embodiment, it is in an inverted T shape. A slider 11 adapted to the slideway 10 is provided at the top of the anchor drill hanging rack 8. The slider 11 can be connected to the top of the anchor drill hanging rack 8 by bolts 12. The slider 11 is sleeved on the slideway 10 and can move back and forth along the slideway 10. The driving member for driving the anchor drill hanging rack 8 to move can be a hydraulic jack. In Figure 5 In the structure shown, it can be installed outside the top beam 3 (not shown), and the output end is connected to the anchor drill hanging rack 8 to directly drive the anchor drill hanging rack 8 to move.
[0046] In some other embodiments, such as Figure 6 As shown, the longitudinal movement of the anchor drill hanging rack 8 can also be realized by opening a long slot 14 on the bottom plate of the top beam 3, placing the upper end of the slider 11 inside the top beam 3, and the lower end of the slider 11 extending out of the bottom plate of the top beam 3 and connecting to the anchor drill hanging rack 8. Similarly, it can be detachably connected by bolts 12. The slider 11 slides back and forth to drive the anchor drill hanging rack 8 to also move back and forth (longitudinally). At this time, the driving member for driving the anchor drill hanging rack 8 to move can be installed inside the top beam 3 to directly drive the slider 11 to move.
[0047] Referring to Figure 7 As shown, the structural schematic diagram provided by the second embodiment of the present invention. On the basis of the above embodiment, at this time, two anchor drill hanging racks 8 are arranged in a large space between the middle support beams of the support, that is, in the non-support beam area 7. The two anchor drill hanging racks 8 can be connected to the first row of supports 1, and the other can be connected to the second row of supports 2, or both can be connected to the same row of supports, which is not specifically limited here; each anchor drill hanging rack 8 can also mount one anchor drilling machine 9 on the left and right respectively. The two anchor drill hanging racks 8 double the number of anchor drilling machines 9, and the speed of drilling anchor holes is nearly doubled. The overall tunneling speed is further improved. Or each anchor drill hanging rack only hangs one anchor drilling machine, which has the advantages of non-interference and non-waiting during work.
[0048] Referring to Figure 8As shown in the figure, it is a schematic structural diagram provided by the third embodiment of the present utility model. On the basis of the above embodiments, all the support components are divided into three groups along the forward movement direction of the row-type support. Each group has one or two joists 4 or more, so each group corresponds to one or two support components. There is a group of support components at the front and back of the row-type support, and there is a group in the middle. Two joist-free areas 7 are formed between the three groups of support components. Therefore, one or two anchor drill hanging brackets 8 are arranged in each joist-free area 7. Due to the presence of one or two groups of support components in the middle of the row-type support, the top beam slideway that bears the hanging force is increased from 1 section to 2 sections. The total length of these 2 sections of top beam slideways is equivalent to nearly doubling the length of the slideway. Of course, the row-type support also becomes longer, and the number of rows of anchor holes drilled at one time will be more. This is a breakthrough, which can change the tunneling process to eight tunneling and one anchoring, or more. While improving the tunneling speed, the efficiency is also improved. Because if it is an eight-tunneling and one-anchoring process, that is, the roadheader continuously tunnels for eight cycle lengths, and the anchor drilling rig 9 moves forward three step distances respectively under the drive of the anchor drill hanging bracket 8. In this way, compared with the prior art, the progress of five tunneling cycles is increased, which can be used for a tunneling process where only tunneling is carried out in one shift and only anchor holes are drilled in the next shift, with high efficiency. Of course, the surrounding rock roof applicable to this situation should be more stable than the surrounding rock roof of the three-tunneling and one-anchoring method. There are many surrounding rock roofs in the tunneling working face that are relatively good and can maintain the roof within about 20 meters at the heading face to drill anchor holes. Such a roof is suitable for the multi-tunneling and one-anchoring tunneling process; therefore, the row-type support in this embodiment has great uses.
[0049] Reference Figure 9 As shown in the figure, it is a schematic structural diagram provided by the fourth embodiment of the present utility model. On the basis of the above embodiments, in this embodiment, there are two joist-free areas 7. One of them has two anchor drill hanging brackets 8, and the other has one anchor drill hanging bracket 8. There is only one support component in the middle of the row-type support, and the propulsion cylinder 13 is arranged at the rear.
[0050] In this embodiment, regarding the problem of the forward shift of the center of gravity of the support caused by setting the anchor drill hanging bracket 8 in front of the front joist of the existing technology mentioned in the background technology, on the basis of the above embodiments, the forward tilting force is also offset and there is no problem. Therefore, it can also be used, that is, an anchor drill hanging bracket 8 can also be set in front of the frontmost joist 4, and an anchor drilling rig 9 is installed on the anchor drill hanging bracket 8; the advantage brought is that the number of additional anchor holes drilled is increased.
[0051] Reference Figure 10As shown in the figure, it is a schematic structural diagram provided by the fifth embodiment of the present utility model. In this embodiment, the front part of the row-connected support is lengthened, leaving a necessary working space of a certain length for the roadheader, enabling it to work properly under the cover of the row-connected support. The anchor drilling hanger 8 is arranged under the roof beam in the non-beam area 7 between the supporting beams at the rear of the roadheader. Such a structure enables the roadheader to still be in front of the support and not withdraw when the anchor drilling machine 9 drills anchor holes. This method of excavating multiple times and then installing one row of anchors is also more efficient than the existing method of excavating multiple times and then installing one row of anchors. Because if the roadheader withdraws, the anchor drilling machine 9 and the workers have to move aside, wasting time. When the roadheader stays in the rear, it often blocks the pedestrian passage, forcing the workers to cross the belt conveyor horizontally, jumping up and down to drill, which is unsafe. Since the roadheader no longer withdraws, the anchor drilling machine 9 on the anchor drilling hanger 8 does not need to have the function of quickly avoiding to the two sidewalls. Even manually, the anchor drilling machine 9 can be moved horizontally by one hole position.
[0052] In this embodiment, since the roadheader no longer withdraws, when the anchor drilling machine 9 is the main working device, the roadheader can also carry out some tunneling work without affecting its operation. When the roadheader is the main working device, the anchor drilling machine 9 can also carry out some work such as drilling side anchor holes, installing anchor bolts, connecting wire meshes, and installing bolts without affecting its operation. If coordinated well, it can be upgraded to a tunneling process of advancing tunneling and then installing rear anchors. When adopting the advancing tunneling and then installing rear anchors process, sufficient working space should be left for the roadheader and the transfer machine in the front. That is, the roadheader excavates and drops slag in the front, and the anchor drilling machine 9 only needs to drill one row of anchor holes for each cycle progress in the rear. After drilling the anchor holes, the permanent support work is completed. In case of special circumstances, either party can pause for a while. Special circumstances can include interference between the high position of the bridge-type belt transfer machine and the anchor drilling machine (such as no such problem with a low-position transfer machine), too much dust obscuring the vision, too much noise making it difficult to cooperate with each other, the roadheader needs to retreat to sweep the bottom coal at the lower part of the sidewall, etc. Although there are various influencing factors, generally speaking, the tunneling speed is still faster than the simple method of excavating multiple times and then installing one row of anchors. Especially when using a remotely controlled or automatically controlled roadheader, support, and even anchor drilling machine, the problems of unclear vision and too much noise will no longer be issues, and the coordination between processes will gradually become coordinated. Of course, the roof surrounding rock corresponding to this process should be relatively stable; because the unsupported roof distance without permanent support is lengthened.
[0053] Therefore, since the roadheader no longer withdraws, the tunneling process adopted can be called advancing tunneling and then installing rear anchors, or even called the highest goal of tunneling and installing anchors simultaneously. More anchor drilling machines 9 can be placed at the rear, and even the hole positions can be fixed. That is, the anchor drilling hanger 8 can be fixedly installed at the bottom of the roof beam 3 in the non-beam area. At the same time, the anchor drilling machine 9 is also fixed on the anchor drilling hanger, without longitudinal movement, lateral movement, or even angle adjustment. Each anchor drilling machine only drills 1 anchor hole, shortening the time for drilling all the anchor bolt holes to the time for drilling one anchor hole, aiming to achieve the fastest speed.
[0054] As Figure 10 or Figure 11, are provided with three fixed position anchor drill hangers 9, wherein, Figure 10 In order to simultaneously set up three anchor drill hangers 9 in a non-support beam area 7, Figure 11 In order to respectively set up an anchor drill hanger 9 in the three non-support beam areas 7, each anchor drill hanger 9 can carry 2, 3 or more anchor drills 8 whose positions can be simply adjusted or even manually, and which can be fixed in position during the working period when the anchor hole spacing does not change; thereby increasing the drilling speed; being easy to operate and easy to form automated operation.
[0055] For example, the three anchor drillers in the front row drill top anchor holes 1, 3, and 5; the three anchor drillers in the middle row drill two side anchor holes plus top anchor hole 4; and the three anchor drillers in the last row drill two low-lying side anchor holes plus top anchor hole 2. When all anchor drillers are fixed in their drilling positions, with each driller drilling only one anchor hole, this creates the fastest anchor drilling process and is also the easiest to automate.
[0056] It should be noted that, in the present invention, a row of bracket structures of anchor drill hangers 8 with anchor drill rigs 9 are arranged in the non-supporting beam areas 7 between the supporting beams 4, that is, between the supporting assemblies; there are several non-supporting beam areas 7, and each non-supporting beam area 7 has several anchor drill hangers 8, each anchor drill hanger 8 carries several anchor drill rigs 9, the forward movement distance of the anchor drill hanger 8 is several anchor hole row spacings, there are several groups of supporting assemblies, each group of supporting assemblies has several first supporting assemblies 5, second supporting assemblies 6, and each supporting assembly supports several supporting beams 4, etc., the present invention does not impose specific restrictions, and can be determined according to the actual needs and the surrounding rock conditions of the working surface during use, and are all within the scope of protection of this technology.
[0057] Especially in the tunnels excavated by large-scale combined mining machines, which have the natural characteristics of wide tunnels, straight tunnels, stable surrounding rock, and long directions, as well as the characteristics of remote control of the tunnel boring machine and the unmanned working surface in front, and the requirement for the fastest excavation speed, all data will be greatly improved if the structure of the utility model is used.
[0058] This technology improves the row of brackets in such a way that a large gap between the support beams is created in the middle and rear parts of the brackets, i.e., a non-supporting beam area 7, thereby obtaining multiple strokes of multiple anchor drill hangers 8 or the setting positions of multiple fixed-position anchor drills 9, so that the anchor drills 9 can drill as many anchor holes as possible or drill as quickly as possible, thereby enabling the tunnel excavation work to obtain more excavation effects of digging one more anchor, or the most ideal excavation effect of digging in front and anchoring later. This effect of this technology is unexpected and its advantages are outstanding.
[0059] The tunneling process exemplified by this technology is suitable for the multi-driving and single-anchoring method. Before the anchor drill rig 9 drills holes, the roadheader should first avoid the working area of the anchor drill rig. Of course, when the stability of the roof surrounding rock allows a long unsupported roof distance and time, even if it is temporarily changed to the front-driving and rear-anchoring process, it can also be implemented. When using the front-driving and rear-anchoring method, the roadheader does not need to withdraw from the heading face. Even if the roadheader does not discharge slag, the time for withdrawal can be saved, and the efficiency is higher.
[0060] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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 construed as a limitation to the present invention.
[0061] In the present invention, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. It can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0062] In the description of this specification, the descriptions with reference to the terms "this embodiment", "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any at least one embodiment or example. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.
[0063] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise specifically defined.
[0064] The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, and simple improvements made to the substantial content of the present utility model shall be included within the protection scope of the present utility model.
Claims
1. A row of brackets for a central-anchored drill rig, characterized in that, It includes a first row-type support (1) and a second row-type support (2). Both the first row-type support (1) and the second row-type support (2) include at least two top beams (3) and at least two crossbeams (4). The top beams (3) and the crossbeams (4) are arranged crosswise, with the top beams (3) located above the crossbeams (4). The top beams (3) of the two row-type supports are distributed alternately. A propulsion cylinder (13) is provided between the two row-type supports, and the propulsion cylinder (13) pushes or pulls the first row-type support (1) and the second row-type support (2) to move forward relatively. First support assemblies (5) are provided below the left and right sides of the first row-type support (1), and second support assemblies (6) are provided below the left and right sides of the second row-type support (2). The first support assemblies (5) and the second support assemblies (6) are distributed alternately, and at least one of the first support assemblies (5) and the adjacent second support assembly (6) form a crossbeam-free area (7). An anchor drill hanging rack (8) is installed at the bottom of the top beam (3) in the crossbeam-free area (7) of the first row-type support (1) or the second row-type support (2), and an anchor drill (9) is connected to the anchor drill hanging rack (8).
2. The row-mounted support of the central-anchored drill rig according to claim 1, characterized in that, Sliding ways (10) are provided at the bottom of at least two top beams (3) in the crossbeam-free area (7). A sliding block (11) adapted to the sliding ways (10) is provided at the top of the anchor drill hanging rack (8). The sliding block (11) is arranged on the sliding ways (10) and can move back and forth along the sliding ways (10).
3. The row-mounted support of the central-anchored drill rig according to claim 2, characterized in that, The sliding ways (10) are in an inverted T shape or an inverted V shape.
4. The row-mounted support of the central-anchored drill rig according to claim 1, characterized in that, A long slot (14) is formed in the bottom plate of the top beam, and a sliding block (11) capable of sliding in the long slot (14) is provided at the top of the anchor drill hanging rack (8).
5. The row-mounted support of the central-anchored drill rig according to claim 1, characterized in that, Two or more anchor drill hanging racks (8) are installed on the top beam (3) in the crossbeam-free area (7).
6. The row-mounted bracket of the central-anchored drill rig according to claim 1, characterized in that The anchor drill hanging rack (8) is fixed to the bottom of the top beam (3) in the crossbeam-free area.
7. The row-mounted support of the central-anchored drill rig according to claim 1, characterized in that, An anchor drill hanging rack (8) is also provided in front of the frontmost crossbeam (4), and an anchor drill (9) is installed on the anchor drill hanging rack (8).
8. The row-mounted bracket of the middle-anchored drill rig according to claim 1, characterized in that, The anchor drill (9) is fixed to the anchor drill hanging rack (8).
9. The row-mounted support of the middle-anchored drill rig according to claim 1, characterized in that, The anchor drill (9) is slidably connected to the anchor drill hanging rack (8).