Top plate temporary supporting device and roadway / tunnel construction equipment

Abstract

The utility model belongs to the field of roadway / tunnel construction equipment, and discloses a roof temporary supporting device and roadway / tunnel construction equipment, the roof temporary supporting device is installed on a chassis of the roadway / tunnel construction equipment, is used for blocking rocks caving from a roadway / tunnel roof above the front of the chassis or lifting materials used for roof supporting at the same time, and comprises a top beam, a front beam and a supporting oil cylinder; the chassis comprises a rack and crawler-type walking parts installed on the two sides of the rack. The top beam is arranged above the rack, swing connecting rods are arranged between the two sides of the longitudinal center line of the rear portion or the front portion of the top beam and the rack respectively, the two ends of each swing connecting rod are hinged to the top beam and the rack respectively, a connecting rod swing oil cylinder is arranged between each swing connecting rod and the rack, the rear end of the front beam is hinged to the front end of the top beam, and a front beam swing oil cylinder is arranged between the front beam and the top beam. Two ends of the supporting oil cylinder are respectively hinged with the top beam and the rack; the temporary roof supporting device can eliminate the safety threat of roadway / tunnel roof rock collapse in front of the chassis to operators in front of the chassis.

Description

Technical Field

[0001] This utility model relates to the field of tunnel / cart construction technology, and in particular to a temporary roof support device and tunnel / cart construction equipment using the temporary roof support device. Background Technology

[0002] Firstly, it is well known in the industry that roadway and tunnel (hereinafter referred to as roadway / tunnel) excavation construction includes at least two work processes: roadway / tunnel excavation and roadway / tunnel surrounding rock support. However, during the support of the roadway / tunnel surrounding rock, because the roadway / tunnel roof rock mass is not yet in a state of necessary support, it is very likely that the roof rock mass will become unstable and collapse as the time of roof collapse increases. In this case, without reliable roof safety protection measures, the personal safety of personnel engaged in surrounding rock support or other work below the roof will be seriously threatened. Once the roof rock collapses, the workers may suffer minor injuries or even lose their lives, or there may even be a major serious safety accident with mass casualties. Therefore, the "Coal Mine Safety Regulations" clearly stipulate that roof collapse is strictly prohibited during mining and roadway repair operations. Therefore, it is essential to research and develop temporary roof support devices suitable for the working environment of tunnel / roadway excavation sites through technological innovation. This would provide reliable safety guarantees for personnel working on tunnel / roadway rock support, ensuring that even if the roof collapses during tunnel / roadway rock support operations, no personal injury will occur to the workers providing support below the roof. This would completely eliminate this major hidden danger to the personal safety of on-site workers in the industry. Secondly, another well-known fact in the industry is that tunnels / roadways include those located in rock masses and coal mine roadways located in coal seams. Small-span tunnels / roadways located in rock masses and coal mine roadways located in coal seams are not suitable for multiple construction equipment with two or more different functions, which would require alternating operation at the working face. Therefore, only partial mechanization can be achieved, resulting in low construction speed and efficiency, and high labor intensity for workers. Even if mechanization is achieved, the alternating operation of multiple pieces of equipment would still lead to low construction speed and efficiency. Therefore, there is a particular need to develop temporary roof support devices suitable for tunnel / tunnel construction equipment designed for small-span tunnel / tunnel engineering conditions. Furthermore, existing temporary roof support devices installed on the chassis of tunnel / tunnel construction equipment all suffer from varying degrees of problems, including complex mechanical structures, low technical performance, and poor adaptability to the construction site environment. It is therefore essential to develop temporary roof support devices with more advanced technical performance, simpler mechanical structures, and installation on the chassis of tunnel / tunnel construction equipment. Utility Model Content

[0003] In view of this, the technical problem to be solved by this utility model is to provide a temporary roof support device and a roadway / tunnel construction equipment using the temporary roof support device, so as to provide safety protection for roadway / tunnel construction workers, especially surrounding rock support workers, and significantly reduce the safety risks and labor intensity of workers.

[0004] To solve the aforementioned technical problems regarding temporary roof support devices, the technical solution of this utility model is as follows: a temporary roof support device, which is installed on the chassis of a tunnel / street construction equipment, used to block rocks from collapsing from the roof of the tunnel / street above the chassis, or used to block rocks from collapsing from the roof of the tunnel / street above the chassis and to support the materials used for roof support, including a top beam, a front beam, and support cylinders; the chassis includes a frame and tracked walking parts installed on the left and right sides of the frame; the top beam is located above the frame, and swing linkages are respectively provided between the top beam and the frame on both sides of its rear or front longitudinal centerline, the upper and lower ends of the swing linkages are respectively hinged to the top beam and the frame, and the left and right swing linkages are connected to each other. A connecting rod swing cylinder is provided between the connecting rod and the frame, or a connecting rod is provided between the left and right swing connecting rods and connected to them. A connecting rod swing cylinder is provided between the connecting rod and the frame. The rear end of the front beam is hinged to the front end of the top beam. A front beam swing cylinder is provided between the front beam and the top beam. Two support cylinders are provided, with their upper and lower ends hinged to the top beam and the frame, respectively. Alternatively, the two support cylinders are respectively built into two telescopic support sleeves, with their upper and lower ends hinged to the top beam and the frame, respectively. The two support cylinders or the telescopic support sleeves are respectively located on both sides of the longitudinal centerline of the top beam and are located in front of or behind the swing connecting rod.

[0005] The swing linkage is a telescopic sleeve-type linkage with a built-in linkage telescopic cylinder. The upper end of the inner sleeve and the lower end of the outer sleeve are respectively hinged to the top beam and the frame. The two ends of the linkage swing cylinder are respectively hinged to the frame and the outer sleeve of the telescopic sleeve-type linkage, or the two ends of the connecting rod are respectively connected to the left and right outer sleeves of the telescopic sleeve-type linkage.

[0006] The front beam is hinged to side beams on both sides, and a side beam drive cylinder is provided between the front beam and the side beams.

[0007] To solve the aforementioned technical problems regarding tunnel / tunnel construction equipment, the technical solution of this utility model is: tunnel / tunnel construction equipment, wherein the tunnel / tunnel construction equipment is a cantilever longitudinal shaft tunneling machine, the cantilever longitudinal shaft tunneling machine is equipped with the aforementioned temporary roof support device, the chassis is the chassis of the cantilever longitudinal shaft tunneling machine, denoted as the longitudinal shaft tunneling machine chassis, and the frame is the frame of the longitudinal shaft tunneling machine chassis.

[0008] To solve the aforementioned technical problems regarding tunnel / tunnel construction equipment, the technical solution of this utility model can also be: tunnel / tunnel construction equipment, the tunnel / tunnel construction equipment including a chassis, a scraper conveyor, a loading and unloading mechanism, a rock drilling device, and the aforementioned temporary roof support device, the chassis being the chassis described above, the loading and unloading mechanism being installed above the front of the chassis for loading rock debris from the working face onto the scraper conveyor, the scraper conveyor being installed in the center of the frame for transferring rock debris to the rear of the chassis, and the rock drilling device being installed on the left and right sides of the chassis for creating drill holes for blasting rock in the working face rock mass in front of the chassis and for anchoring the surrounding rock of the tunnel / tunnel.

[0009] The rock drilling device includes a boom assembly and a rock drilling mechanism. The boom assembly includes a boom, which is a telescopic boom with a built-in boom telescopic cylinder. The rear end of the boom is movably mounted on the chassis with its front end swinging in both vertical and horizontal dimensions. The front end of the boom is movably connected to the rock drilling mechanism.

[0010] The chassis is provided with a boom sliding mechanism that can slide back and forth on both sides. The boom sliding mechanism includes a boom slide rail and a boom slide seat. The boom slide rail is arranged longitudinally on the chassis. The boom slide seat is slidably or rollingly installed on the boom slide rail. A sliding power device is provided between the chassis and the boom slide seat. The rear end of the boom is movably installed on the boom slide seat with its front end swinging in both vertical and horizontal dimensions.

[0011] The rock drilling mechanism includes a rock drilling rig, a sliding block, a rock drilling frame, and a propulsion mechanism. The rock drilling rig is fixedly connected to or integrally formed with the sliding block. The sliding block is slidably mounted on the rock drilling frame, and the propulsion mechanism is located between the sliding block and the rock drilling frame. This is referred to as Scheme A. Alternatively, the rock drilling mechanism includes a rock drilling rig, a sliding block, a rock drilling frame, a propulsion mechanism, and a rock drilling slide. The rock drilling rig is fixedly connected to or integrally formed with the sliding block. The sliding block is slidably mounted on the rock drilling frame, and the propulsion mechanism is located between the sliding block and the rock drilling frame. The rock drilling frame is slidably mounted on the rock drilling slide, and a rock drilling frame drive cylinder is provided between the rock drilling frame and the rock drilling slide. This is referred to as Scheme B.

[0012] The boom's rear end is hinged to a transition connecting seat via a cross-hinged joint. The transition connecting seat is fixedly connected to or integrally formed with the boom slide. Two boom swing cylinders are installed between the rear of the boom and the transition connecting seat. The rear end of each boom swing cylinder is hinged to the transition connecting seat via a cross-hinged joint, and its front end is hinged to the boom. The boom's front end is connected to the rock drilling mechanism via connector I, connector II, rotary cylinder I, and rotary cylinder II. The boom's front end is connected to the mounting end of rotary cylinder I. The output end of rotary cylinder I and the mounting end of rotary cylinder II are respectively connected to connecting member I, and the output end of rotary cylinder II is connected to connecting member II. When the rock drilling mechanism adopts scheme A, the rock drilling frame is rotatably mounted on connecting member II, and a rock drilling frame swing cylinder is provided between the rock drilling frame and the connecting member II. When the rock drilling mechanism adopts scheme B, the rock drilling slide is rotatably mounted on connecting member II, and a rock drilling slide swing cylinder is provided between the rock drilling slide and the connecting member II.

[0013] The boom slide is also provided with a lifting seat that is slidably connected thereto. A lifting power device is provided between the lifting seat and the boom slide. The transition connecting seat is fixedly connected to the lifting seat or is integrally formed with it.

[0014] After adopting the above technical solution, the present invention has achieved the following beneficial technical effects:

[0015] First, the temporary roof support device of this utility model, installed on the chassis of tunnel / street construction equipment, not only provides safety protection for personnel working on the surrounding rock of tunnels / streets, but also supports the metal mesh and other support materials used for roof support. Furthermore, due to the unique "swinging link + link swing cylinder" structure used in the mechanical connection between the roof beam and the frame, this device not only features a simple and novel structure, but also boasts superior technical performance. On the one hand, even when the roof beam is subjected to lateral loads, longitudinal loads, and unbalanced vertical loads, as long as the load does not exceed the limit, under the vertical tension or support of the swinging link, longitudinal and lateral constraints, and the support of the hydraulic cylinder, the roof beam can still maintain a structurally stable position relative to the frame, provided the load does not exceed the limit. On the one hand, stability is required; on the other hand, when the top beam and front beam are needed to provide safety protection for personnel carrying out roadway / tunnel surrounding rock support or other operations, the connecting rod swing cylinder can be retracted or extended to drive the swing connecting rod to swing forward and drive the top beam to swing forward, thereby meeting the safety protection requirements. Conversely, after the support operation is completed, the top beam and front beam need to make room above the front of the chassis. The connecting rod swing cylinder can be extended or retracted to drive the swing connecting rod to swing backward and drive the top beam to swing backward. With the assistance of the front beam folding backward, the necessary working space can be left to maximize the creation of drilling holes for blasting in the upper rock mass of the working face, or to maximize the necessary working space for the cutting part of the cantilever longitudinal axis tunneling machine to cut the upper coal body of the working face.

[0016] Secondly, the swing linkage adopts a telescopic sleeve structure, which can not only expand the adaptability range of the temporary roof support device to the height of the tunnel / slot, and amplify the amplitude of the front and rear swing of the roof beam, but also significantly reduce or even eliminate the significant influence of the tunnel / slot height on the amplitude of the front and rear swing of the roof beam. Therefore, even if the construction equipment is used in a low tunnel / slot construction environment, it can still ensure that the amplitude of the front and rear swing of its roof beam can still meet the requirements of on-site operation.

[0017] Third, the temporary roof support device of this utility model, which serves as the top beam and front beam of the functional components for blocking the collapse of rocks from the roof, is connected to the chassis (frame) of the tunnel / tunnel construction equipment only through two swinging rods arranged symmetrically on the left and right. This mechanical structure not only does not significantly increase the width of the tunnel / tunnel construction equipment, but is also particularly suitable for engineering conditions of small-span tunnels / tunnels. Moreover, it occupies less space above the chassis and is also conducive to the development of a large number of multifunctional construction equipment arranged on the chassis.

[0018] Fourth, compared to the technology of setting a sliding telescopic top beam between the top beam and the front beam to meet the swing amplitude of the top beam and the front beam, the temporary support device for the top plate of this utility model has fewer parts and has obvious technical advantages of simpler mechanical structure and lower cost.

[0019] Fifth, if the support cylinder is built into the telescopic support sleeve, it will also have a lateral restraint effect on the top beam, further increasing the stability of the top beam.

[0020] Sixth, the temporary roof support device of this utility model can be installed not only on the chassis of a cantilever longitudinal shaft tunneling machine, but also on the chassis of roadway / tunnel excavation equipment used for construction in rock mass, which has obvious technical advantages of wide range of applications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of the tunnel / tunnel construction equipment according to an embodiment of the present utility model (the top beam of the temporary support device for the roof swings backward and the front beam is folded, and the two rock drilling devices create a drilling state for blasting rock).

[0022] Figure 2 yes Figure 1 Another schematic diagram (the top beam of the temporary support device for the top plate swings forward and unfolds, and the rock drilling device provides anchor support for the surrounding rock, wherein the rock drilling device on the left supports the top plate and the rock drilling device on the right supports the side wall).

[0023] Figure 3 yes Figure 1 Another schematic diagram of the state (the rock drilling device on the left supports the top plate, and the rock drilling device on the right creates the state of drilling and blasting rock).

[0024] Figure 4 yes Figure 1 Another schematic diagram of the state (loading and transporting rock debris, with the rock drilling device sliding backward and folding, and the top beam of the temporary roof support device swinging backward and folding).

[0025] Figure 5 This is a schematic diagram of the top beam of the temporary support device for the top slab of this utility model in the state of being swung forward and unfolded.

[0026] Figure 6 yes Figure 5 Another directional diagram;

[0027] Figure 7 This is a schematic diagram of the top beam of the temporary support device for the top slab of this utility model being tilted backward and the front beam being folded.

[0028] Figure 8 yes Figure 1 A schematic diagram of the loading and unloading mechanism in the middle;

[0029] Figure 9 yes Figure 1 A schematic diagram of the rock drilling device in the diagram;

[0030] Figure 10 yes Figure 1 A schematic diagram of the boom sliding mechanism (when it is a separate component);

[0031] Figure 11 This is a structural schematic diagram of a tunnel / roadway construction equipment (a cantilevered longitudinal axis tunneling machine) according to another embodiment of the present invention (the top beam of the temporary roof support device is swinging forward and unfolded).

[0032] Figure 12 yes Figure 11 A schematic diagram of the temporary support device for the roof slab in the middle, showing the top beam swinging backward and the front beam folded;

[0033] In the picture:

[0034] 1. Chassis;

[0035] 2. Scraper conveyor;

[0036] 3. Loading mechanism; 31. First loading arm; 32. Second loading arm; 33. Bucket; 34. Rotating body;

[0037] 4. Rock drilling equipment;

[0038] 41. Boom assembly; 411. Transition connector; 412. Boom swing cylinder; 413. Boom; 417. Slewing cylinder I; 418. Connector I; 419. Slewing cylinder II; 420. Connector II;

[0039] 42. Rock drilling mechanism; 421. Slide block; 422. Rock drilling rig; 423. Rock drilling machine frame; 424. Rock drilling slide; 425. Propulsion mechanism; 426. Rock drilling machine frame drive cylinder; 427. Rock drilling slide swing cylinder;

[0040] 5. Boom sliding mechanism; 51. Boom base; 52. Sliding power device; 53. Boom slide rail; 54. Boom slide block; 55. Lifting seat;

[0041] 6. Temporary support device for the roof slab; 61. Top beam; 62. Front beam; 63. Side beam; 64. Swinging link; 65. Link swing cylinder; 66. Support cylinder; 67. Front beam swing cylinder; 68. Side beam drive cylinder;

[0042] 7. Cantilevered longitudinal axis tunneling machine;

[0043] a and b are both cross-hinged joints. Detailed Implementation

[0044] The technical solution of this utility model will be described in detail below with reference to the accompanying drawings and specific embodiments to further understand the purpose, solution and effect of this utility model, but it is not intended to limit the scope of protection of the appended claims of this utility model.

[0045] Example 1

[0046] like Figure 5 , Figure 6 and Figure 7 As shown, and with reference Figures 1 to 4 The temporary roof support device 6 of this utility model embodiment is installed on the chassis 1 of the tunnel / tunnel construction equipment to block rocks from collapsing from the roof of the tunnel / tunnel in front of the chassis 1, or to block rocks from collapsing from the roof of the tunnel / tunnel in front of the chassis 1 and to support the materials used for roof support.

[0047] The chassis 1 includes a frame and tracked walking parts installed on the left and right sides of the frame.

[0048] The temporary support device 6 for the roof includes a top beam 61, a front beam 62, and two support cylinders 66. The upper end of the support cylinder 66 is hinged to the top beam 61, and the lower end is hinged to the frame. The top beam 61 is located above the frame, and the two sides of the longitudinal center line at the rear of the top beam are hinged to the frame via swing connecting rods 64. The upper end of the swing connecting rod 64 is hinged to the top beam 61, and the lower end is hinged to the frame. A connecting rod swing cylinder 65 is provided between the swing connecting rod 64 and the frame. The rear end of the front beam 62 is hinged to the front end of the top beam 61, and a front beam swing cylinder 67 is provided between the front beam 62 and the top beam 61.

[0049] Among them, the swing link 64 is further optimized into a telescopic sleeve type link. The telescopic sleeve type link has a built-in link telescopic cylinder. Its upper end is hinged to the top beam 61 and its lower end is hinged to the frame. One end of the link swing cylinder 65 is hinged to the frame and the other end is hinged to the outer sleeve of the telescopic sleeve type link.

[0050] Further design optimization involves hinged side beams 63 on both sides of the front beam 62, with a side beam drive cylinder 68 positioned between the front beam 62 and the side beams 63. The side beams 63 not only increase the support area of ​​the front beam but also allow for easy folding towards the longitudinal centerline of the frame, reducing the space occupied by the front beam.

[0051] The temporary roof support device 6 provides safety protection for the anchor bolt support workers, or supports roof support materials such as metal mesh, eliminating the safety threat of rockfall on the roof of the tunnel to the anchor bolt support workers, and also saving the workers the workload of supporting the roof support materials.

[0052] The connection between the top beam 61 and the frame employs a unique structure of "swinging link 64 + link swing cylinder 65". This structure is not only simple and novel, but also functionally sound. Firstly, even when the top beam 61 is subjected to lateral loads, longitudinal loads, and unbalanced vertical loads, as long as the load does not exceed limits, the top beam 61 remains structurally stable relative to the frame under the vertical support or tension of the swing link, longitudinal and lateral constraints, and the support of the hydraulic cylinder. Secondly, the link swing cylinder... 65 drives the swing linkage 64 to swing back and forth, which in turn drives the top beam 61 to swing back and forth. When safety protection is needed for the anchor bolt support workers, the linkage swing cylinder 65 retracts (when the linkage swing cylinder 65 is located behind the swing linkage 64, the linkage swing cylinder 65 extends outward), the swing linkage 64 swings forward, and drives the top beam assembly (including the top beam 61, front beam 62, and side beam 63) to swing forward significantly. The side beam 63 unfolds, providing maximum safety protection for the anchor bolt support workers without any gaps (e.g., Figure 2 , Figure 3 (as shown); Conversely, after the anchor bolt support operation is completed, the side beam drive cylinder 68 retracts, the side beam 63 folds and retracts, the front beam swing cylinder 67 retracts, the front beam 62 folds and retracts backward, and the connecting rod swing cylinder 65 extends (when the connecting rod swing cylinder 65 is located behind the swing connecting rod 64, the connecting rod swing cylinder 65 retracts), the swing connecting rod 64 swings backward and drives the top beam assembly to swing backward significantly, which can leave enough space for the working mechanism and personnel to carry out operations such as drilling blasting rock holes and loading and unloading rock debris at the working face (such as...). Figure 1 , Figure 4 (As shown).

[0053] Because the swing link 64 adopts a telescopic sleeve structure, it can not only expand the adaptability range of the temporary roof support device to the height of the tunnel / slot, and amplify the amplitude of the front and rear swing of the roof beam, but also greatly reduce or even eliminate the influence of the tunnel / slot height on the amplitude of the front and rear swing of the roof beam. Therefore, even if the equipment is used in low tunnel / slot construction sites, the amplitude of the front and rear swing of the roof beam can still meet the technical requirements. It also eliminates the need for the telescopic roof beam commonly used in existing technologies between the roof beam and the front beam, making the mechanical structure of the temporary roof support device simpler.

[0054] Obviously, in this embodiment, it is not limited to the method shown in the attached drawings where the left and right swing links 64 are respectively provided with connecting rod swing cylinders 65 between them and the frame. It can also be done in the following way: a connecting rod is provided between the left and right swing links (that is, the two ends of the connecting rod are respectively connected to the outer sleeves of the left and right telescopic sleeve-type connecting rods), and a connecting rod swing cylinder is provided between the connecting rod and the frame. One end of the connecting rod swing cylinder is connected to the connecting rod, and the other end is connected to the frame. In this way, the left and right swing links can share a single connecting rod swing cylinder. It will not be shown or described in detail here.

[0055] Obviously, in this embodiment, it is not limited to the arrangement shown in the accompanying drawings, where swing linkages are respectively provided between the two sides of the longitudinal centerline of the rear part of the top beam and the frame. Alternatively, swing linkages can be provided between the two sides of the longitudinal centerline of the front part of the top beam and the frame, which will not be illustrated in detail here.

[0056] Obviously, in this embodiment, it is not limited to the case shown in the attached drawings, where the upper and lower ends of the two support cylinders are hinged to the top beam and the frame, respectively; alternatively, the two support cylinders can be built into two retractable support sleeves, with the upper and lower ends of the retractable support sleeves hinged to the top beam and the frame, respectively; the two support cylinders or retractable support sleeves are respectively located on both sides of the longitudinal centerline of the top beam, and are both located in front of the swing link (when swing links are respectively provided between the two sides of the longitudinal centerline of the rear of the top beam and the frame, the two support cylinders or retractable support sleeves are located in front of the swing link) or behind the swing link (when swing links are respectively provided between the two sides of the longitudinal centerline of the front of the top beam and the frame, the two support cylinders or retractable support sleeves are located behind the swing link).

[0057] Example 2

[0058] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown in the figure, the tunnel / slot construction equipment of this utility model includes: a muck loader, which includes a chassis 1, a scraper conveyor 2, and a loading mechanism 3; it also includes a rock drilling device 4 and a temporary roof support device 6 installed on the chassis 1. The rock drilling device 4 is symmetrically arranged on the left and right sides of the chassis 1 and is installed on the chassis 1 through a boom sliding mechanism 5.

[0059] Among them, the rock drilling device 4 is used to create drilling and blasting holes in the working face rock in front of the chassis 1 and to implement anchor bolt support for the surrounding rock of the tunnel / tunnel.

[0060] Among them, the boom sliding mechanism 5 can further increase the forward and backward movement range of the rock drilling device 4, which is also convenient for drilling blasting rock holes and carrying out anchor bolt support operations in a larger range. It can also eliminate the blind spots in the operation of drilling blasting rock holes caused by setting the rock drilling device on the left and right sides of the chassis and setting the loading mechanism at the front of the chassis, as well as the problem that the rock drilling device touches the rock wall in front of the working face when the loading mechanism loads the rock debris at the front of the working face.

[0061] The specific structure of the above-mentioned main components is described in detail below.

[0062] The scraper conveyor 2 is installed in the center of the frame of the chassis 1 and is used to transfer rock debris to the rear of the chassis 1. The loading mechanism 3 is used to load the rock debris onto the scraper conveyor 2. Figure 8 As shown, the loading mechanism 3 includes a rotating body 34, a first loading arm 31, a second loading arm 32, a bucket 33, and a rotating body drive mechanism that are hinged to each other in sequence. The rear end of the first loading arm 31 is hinged to the rotating body 34. The rotating body 34 is rotatably mounted on the chassis 1. The rotating body drive mechanism (preferably a telescopic cylinder) is located between the rotating body 34 and the chassis 1.

[0063] Figure 10 The specific structure of the boom sliding mechanism 5 is shown, combined with Figure 1 and Figure 9 The chassis 1 is equipped with a boom sliding mechanism 5 that can slide back and forth. The boom sliding mechanism 5 includes a boom slide rail 53 and a boom slide seat 54. The boom slide rail 53 is longitudinally arranged on the boom base 51, and the boom base 51 is fixed to the chassis 1. The boom slide seat 54 is slidably or rollingly installed on the boom slide rail 53. A sliding power device 52 is provided between the boom base 51 and the boom slide seat 54. The sliding power device 52 is preferably a telescopic cylinder, but it can also be other linear power devices. The rear end of the boom 413 is movably installed on the lifting seat 55 with its front end swinging in both vertical and horizontal dimensions. The lifting seat 55 is slidably installed on the boom slide seat 54. A lifting power device (not shown in the figure) is provided between the lifting seat 55 and the boom slide seat 54. The lifting power device is preferably a telescopic cylinder, but it can also be other linear power devices. From the perspective of the utility model concept, the boom base 51 can be regarded as part of the chassis 1.

[0064] In this embodiment, the sliding power device 52 disposed between the chassis 1 and the boom slide 54 generally refers to the power device that drives the boom slide to move relative to the slide rail. It includes both the boom slide being slidably mounted on the slide rail and moving relative to the slide rail, and the boom slide rolling on the slide rail and moving relative to the slide rail.

[0065] Of course, if the lifting seat 55 is not set, the rear end of the boom 413 is installed on the boom slide 54 in a way that its front end can swing in two dimensions, up and down and left and right (that is, the transition connecting seat 411 is fixedly connected to the boom slide 54). The advantage is that the structure is simplified, but the flexibility of the rock drilling device 4 is reduced and the adaptability to the working environment will be worse.

[0066] Figure 10 The diagram shows the structure of the boom sliding mechanism 5 as an independent component. Obviously, the boom sliding mechanism 5 does not necessarily have to be designed as an independent component structure. The boom base 51, boom slide rail 53, and other components that are stationary relative to the chassis can also be integrated with the chassis 1.

[0067] like Figure 9 As shown, combined with Figure 1 and Figure 10 The rock drilling device 4 includes a boom assembly 41 and a rock drilling mechanism 42 connected together. The boom assembly 41 includes a boom 413 and hydraulic cylinders, connectors, etc. connected to the boom 413. The boom 413 is a telescopic boom with a built-in telescopic hydraulic cylinder. In this embodiment, the rear end of the boom 413 is movably mounted on the lifting seat 55 of the boom sliding mechanism 5 with its front end swinging in both vertical and horizontal dimensions. The longitudinally movable front end of the boom 413 is movably connected to the rock drilling mechanism 42. In this way, the boom 413 can move longitudinally with the boom slide 54 of the boom sliding mechanism 5 and rise and fall with the lifting seat 55, which can further increase the forward and backward movement range of the rock drilling device 4, making it easier to create blasting rock boreholes and carry out anchor bolt support operations over a larger range. It can also eliminate the problem of blind spots in blasting rock borehole operations caused by setting the rock drilling device 4 on the left and right sides of the chassis 1 and setting the loading mechanism 3 in front of the chassis 1. In addition, it can also eliminate the problem of the rock drilling device 4 hitting the rock wall in front of the working face when the loading mechanism 3 is loading the rock debris at the front of the working face.

[0068] Of course, without the boom sliding mechanism 5, the rear end of the boom 413 can be directly and movably connected to the chassis 1.

[0069] like Figure 9 As shown, combined with Figure 1 and Figure 10 The rear end of the boom 413 is hinged to the transition connecting seat 411 via a cross hinge joint a. The transition connecting seat 411 is fixedly connected to or integrally set with the lifting seat 55. Two boom swing cylinders 412 are provided between the rear of the boom 413 and the chassis. The rear end of the boom swing cylinder 412 is hinged to the transition connecting seat 411 via a cross hinge joint b, and its front end is hinged to the boom 413. By extending and retracting the boom swing cylinder 412, the boom 413 can be driven to swing its front end in both vertical and horizontal dimensions.

[0070] like Figure 9As shown, the rock drilling mechanism 42 includes a rock drill 422, a slide 421, a rock drill frame 423, and a propulsion mechanism 425. The rock drill 422 is fixedly connected to or integrally set with the slide 421, and the slide 421 is slidably mounted on the rock drill frame 423. The propulsion mechanism 425 preferably adopts a hydraulic cylinder-wire rope speed-multiplying mechanism or a hydraulic cylinder-chain speed-multiplying mechanism. The propulsion mechanism 425 is set between the slide 421 and the rock drill frame 423 and is used to drive the slide 421 to slide relative to the rock drill frame 423. With the speed-multiplying mechanism, the drilling depth can reach twice the hydraulic cylinder stroke, achieving a larger drilling depth with a smaller hydraulic cylinder stroke (length). The rock drilling mechanism 42 includes a rock drilling slide 424, which is movably connected to the front end of the boom 413. A rock drilling frame 423 is slidably mounted on the rock drilling slide 424. A rock drilling frame drive cylinder 426 is provided between the rock drilling frame 423 and the rock drilling slide 424. The rock drilling frame drive cylinder 426 can drive the rock drilling frame 423 to slide forward relative to the rock drilling slide 424, causing its front end to rest against the rock wall or surrounding rock wall in front of the working face, thereby increasing the stability of the rock drilling mechanism 42 during drilling operations. Alternatively, the rock drilling mechanism 42 can be without the rock drilling slide 424, allowing the rock drilling frame 423 to be directly movably connected to the front end of the boom 413. The advantage of this is a simplified structure, but the stability of the rock drilling mechanism 42 during drilling operations is inferior to the aforementioned structure.

[0071] For ease of understanding, the rock drilling mechanism 42 without the rock drilling slide 424 is denoted as Scheme A, and the rock drilling mechanism 42 with the rock drilling slide 424 is denoted as Scheme B.

[0072] In this embodiment, the front end of the boom 413 is connected to the rock drilling slide 424 via connector I 418, connector II 420, rotary cylinder I 417 (shown in the figure as longitudinally arranged), and rotary cylinder II 419 (shown in the figure as vertically arranged).

[0073] Specifically, the front end of boom 413 is connected to the mounting end of rotary cylinder I 417, the output end of rotary cylinder I 417 and the mounting end of rotary cylinder II 419 are respectively connected to connector I 418, and the output end of rotary cylinder II 419 is connected to connector II 420.

[0074] When the rock drilling mechanism 42 adopts the aforementioned scheme B, the rock drilling slide 424 is rotatably mounted on the connecting part II 420, and a rock drilling slide swing cylinder 427 is provided between the rock drilling slide 424 and the connecting part II 420. By rotating the rotary cylinder I 417, the rotary cylinder II 419 and the rock drilling mechanism 42 connected to the rotary cylinder II 419 are driven to swing around the rotation center of the rotary cylinder I 417; by rotating the rotary cylinder II 419, the rock drilling mechanism 42 is driven to swing around the rotation center of the rotary cylinder II 419; by extending and retracting the rock drilling slide swing cylinder 427, the pitch angle of the rock drilling mechanism 42 can be adjusted.

[0075] When the rock drilling mechanism 42 adopts scheme A, the rock drilling frame 423 is rotatably mounted on the connecting part II 420, and a rock drilling frame swing cylinder is provided between the rock drilling frame 423 and the connecting part II 420.

[0076] The tunnel / tunnel construction equipment disclosed in this embodiment, based on the specific connection method between the rock drilling mechanism 42 of the rock drilling device 4 and the front end of the boom 413, is particularly suitable for creating blasting rock boreholes in the working face rock mass in front of the chassis and implementing anchor bolt support for the surrounding rock of the tunnel / tunnel.

[0077] In summary, the tunnel / tunnel construction equipment of this embodiment, on a muck loader chassis equipped with a scraper conveyor and material loading mechanism, and with rock cutting loading and transfer functions, creatively adds a rock drilling device and a temporary roof support device. It integrates multiple functions such as material loading and transfer, rock drilling, anchor bolt support, and temporary roof support, and can adapt to the engineering environment of small-span tunnel / tunnel excavation construction, and meet the requirements of mechanized operation for small-span tunnel / tunnel excavation construction. It can significantly improve the level of mechanization, construction speed, and work efficiency of construction, and also provide safety protection for tunnel / tunnel surrounding rock support workers, eliminate the safety risks caused by roof rock collapse to workers, and significantly reduce labor intensity.

[0078] Example 3

[0079] like Figure 11 and Figure 12 As shown, the tunnel / roadway construction equipment of this utility model embodiment is a cantilever longitudinal axis tunneling machine 7. A temporary roof support device 6, as described in Embodiment 1, is installed on the cantilever longitudinal axis tunneling machine 7. The chassis is the chassis of the cantilever longitudinal axis tunneling machine 7, referred to as the longitudinal axis tunneling machine chassis, and the frame is the frame of the longitudinal axis tunneling machine chassis. The temporary roof support device 6 provides safety protection for workers in front of the cantilever longitudinal axis tunneling machine 7 chassis, eliminating the safety threat posed by rockfall from the tunnel / roadway roof and significantly reducing the safety risks to workers.

[0080] The above description is an example of a preferred embodiment of the present utility model. All parts not described in detail are known technologies in the art. The protection scope of the present utility model is determined by the content of the claims. Any equivalent transformations based on the technical teachings of the present utility model are within the protection scope of the present utility model.

Claims

1. A temporary support device for roof slabs, characterized in that, The temporary roof support device is installed on the chassis of the tunnel / tunnel construction equipment to block rocks from collapsing from the roof of the tunnel / tunnel in front of the chassis, or to block rocks from collapsing from the roof of the tunnel / tunnel in front of the chassis and to support the materials used for roof support, including the top beam, the front beam, and the support cylinder. The chassis includes a frame and tracked walking parts installed on the left and right sides of the frame; The top beam is positioned above the frame, and swing linkages are respectively provided between the top beam and the frame on both sides of its rear or front longitudinal centerline. The upper and lower ends of the swing linkages are respectively hinged to the top beam and the frame. A linkage swing cylinder is respectively provided between the left and right swing linkages and the frame, or a connecting rod is provided between the left and right swing linkages and connected to them. A linkage swing cylinder is provided between the connecting rod and the frame. The rear end of the front beam is hinged to the front end of the top beam, and a front beam swing cylinder is provided between the front beam and the top beam. Two support cylinders are provided, with their upper and lower ends hinged to the top beam and the frame, respectively. Alternatively, the two support cylinders are each built into two retractable support sleeves, with their upper and lower ends hinged to the top beam and the frame, respectively. The two support cylinders or the retractable support sleeves are respectively located on both sides of the longitudinal centerline of the top beam, and are both located in front of or behind the swing linkage.

2. The temporary roof support device as described in claim 1, characterized in that, The swing linkage is a telescopic sleeve-type linkage with a built-in linkage telescopic cylinder. The upper end of the inner sleeve and the lower end of the outer sleeve are respectively hinged to the top beam and the frame. The two ends of the linkage swing cylinder are respectively hinged to the frame and the outer sleeve of the telescopic sleeve-type linkage, or the two ends of the connecting rod are respectively connected to the left and right outer sleeves of the telescopic sleeve-type linkage.

3. The temporary roof support device as described in claim 1 or 2, characterized in that, Side beams are hinged to both sides of the front beam, and a side beam drive cylinder is provided between the front beam and the side beams.

4. Tunnel / lane construction equipment, characterized in that, The tunnel / roadway construction equipment is a cantilever longitudinal axis tunneling machine, which is equipped with a roof temporary support device as described in any one of claims 1 to 3. The chassis is the chassis of the cantilever longitudinal axis tunneling machine, referred to as the longitudinal axis tunneling machine chassis, and the frame is the frame of the longitudinal axis tunneling machine chassis.

5. Tunnel / lane construction equipment, characterized in that, The tunnel / tunnel construction equipment includes a chassis, a scraper conveyor, a loading and unloading mechanism, a rock drilling device, and a temporary roof support device as described in any one of claims 1 to 3. The chassis is the chassis described in claim 1. The loading and unloading mechanism is installed above and in front of the chassis for loading rock debris from the working face onto the scraper conveyor. The scraper conveyor is installed in the center of the frame for transferring rock debris to the rear of the chassis. The rock drilling device is installed on the left and right sides of the chassis for creating blasting boreholes in the rock mass of the working face in front of the chassis and for anchoring the surrounding rock of the tunnel / tunnel.

6. The tunnel / street construction equipment as described in claim 5, characterized in that, The rock drilling device includes a boom assembly and a rock drilling mechanism. The boom assembly includes a boom, which is a telescopic boom with a built-in boom telescopic cylinder. The rear end of the boom is movably mounted on the chassis with its front end swinging in both vertical and horizontal dimensions. The front end of the boom is movably connected to the rock drilling mechanism.

7. The tunnel / street construction equipment as described in claim 6, characterized in that, The chassis is provided with a boom sliding mechanism that can slide back and forth on both sides. The boom sliding mechanism includes a boom slide rail and a boom slide base. The boom slide rail is arranged longitudinally on the chassis. The boom slide base is slidably or rollingly installed on the boom slide rail. A sliding power device is provided between the chassis and the boom slide base. The rear end of the boom is movably installed on the boom slide base with its front end swinging in both vertical and horizontal dimensions.

8. The tunnel / street construction equipment as described in claim 7, characterized in that, The rock drilling mechanism includes a rock drilling rig, a sliding block, a rock drilling frame, and a propulsion mechanism. The rock drilling rig is fixedly connected to or integrally formed with the sliding block. The sliding block is slidably mounted on the rock drilling frame. The propulsion mechanism is disposed between the sliding block and the rock drilling frame, denoted as Scheme A; or The rock drilling mechanism includes a rock drilling rig, a sliding block, a rock drilling frame, a propulsion mechanism, and a rock drilling slide. The rock drilling rig is fixedly connected to or integrally formed with the sliding block. The sliding block is slidably mounted on the rock drilling frame. The propulsion mechanism is disposed between the sliding block and the rock drilling frame. The rock drilling frame is slidably mounted on the rock drilling slide. A rock drilling frame drive cylinder is disposed between the rock drilling frame and the rock drilling slide. This is referred to as Scheme B.

9. The tunnel / street construction equipment as described in claim 8, characterized in that, The rear end of the boom is hinged to the transition connecting seat via a cross joint. The transition connecting seat is fixedly connected to or integrally formed with the boom slide. Two boom swing cylinders are provided between the rear part of the boom and the transition connecting seat. The rear end of the boom swing cylinder is hinged to the transition connecting seat via a cross joint, and its front end is hinged to the boom. The front end of the boom is connected to the rock drilling mechanism via connector I, connector II, rotary cylinder I, and rotary cylinder II; The front end of the boom is connected to the mounting end of the rotary cylinder I, the output end of the rotary cylinder I and the mounting end of the rotary cylinder II are respectively connected to the connecting piece I, and the output end of the rotary cylinder II is connected to the connecting piece II; When the rock drilling mechanism adopts scheme A, the rock drilling frame is rotatably mounted on the connecting member II, and a rock drilling frame swing cylinder is provided between the rock drilling frame and the connecting member II; when the rock drilling mechanism adopts scheme B, the rock drilling slide is rotatably mounted on the connecting member II, and a rock drilling slide swing cylinder is provided between the rock drilling slide and the connecting member II.

10. The tunnel / street construction equipment as described in claim 9, characterized in that, The boom slide is also provided with a lifting seat that is slidably connected thereto. A lifting power device is provided between the lifting seat and the boom slide. The transition connecting seat is fixedly connected to the lifting seat or is integrally formed with it.

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