Multifunctional roadway / tunneling construction equipment

Abstract

A rock drilling device and a mechanical slotting device are arranged on a chassis, the rock drilling device comprises an arm frame component and a rock drilling mechanism, the rear end of an arm frame is movably installed on the chassis in the mode that the front end of the arm frame can swing in the up-down dimension and the left-right dimension, and the rear end of the arm frame is movably installed on the chassis in the mode that the front end of the arm frame can swing in the left-right dimension. And the front end of the arm frame is movably connected with the rock drilling mechanism. According to the utility model, the rock drilling device and the mechanical slotting device are optimally and integrally arranged on the chassis of the roadway / tunneling construction equipment, so that under the condition of almost no mutual influence, a blasting rock free face can be drilled or advanced drilling operation can be carried out, and a blasting material can be filled to drill holes or anchor rod supports can be carried out; according to the utility model, the defects caused by outward throwing of rock slag in a conventional drilling and blasting rock blasting construction method are eliminated, the problem of incomplete functions of construction equipment is solved, the labor intensity is obviously reduced, the construction operation efficiency and the construction speed are improved, and the device is particularly suitable for mechanical tunneling construction of small-span roadways / tunnels.

Description

Technical Field

[0001] This utility model relates to the field of tunneling construction equipment technology, and in particular to a multi-functional tunnel / roadway tunneling construction equipment. Background Technology

[0002] In coal mine systems, roadways (hereinafter referred to as rock roadways) and railway, highway, and hydropower systems (hereinafter referred to as rock tunnels) are constructed by excavation in rock mass. Drilling and blasting rock has always been the most commonly used rock breaking method. Other rock breaking methods include full-face mechanical rolling and scraping rock breaking by TBMs (Tunnel Boring Machines, including open-face and shield types), and partial-face cutting rock breaking by high-power cantilever horizontal axis hard rock tunnel boring machines.

[0003] In terms of adaptability to factors such as changes in pitch angle and direction of advance, cross-sectional size and length of tunnels and blasting tunnels (hereinafter referred to as tunnels / tunnels) located in rock strata, rock hardness, and changes in surrounding rock stability, drilling and blasting rock breaking is significantly superior to TBM. In addition, TBM is large in size and complex in structure, and its cost is relatively much higher. Its installation and removal cycle is long, and its rock breaking energy consumption per unit volume and the cost per meter of project are significantly higher. Therefore, even though TBM has been around for many years, it still cannot completely replace the traditional drilling and blasting rock breaking method.

[0004] The cantilevered horizontal axis high-power hard rock tunnel boring machine (TBM), which has been on the market for over 20 years, has not been widely adopted in tunnel / tunnel excavation due to several issues. These issues include high noise levels from the cutting teeth when cutting hard rock, extremely high dust concentrations that seriously endanger the occupational health of construction workers, and high costs per meter of project (mainly due to high wear and tear on the cutting teeth, equipment maintenance and depreciation costs, and financial expenses). Furthermore, if the rock hardness exceeds the Protodyakonov hardness coefficient of 7, the construction speed will be significantly reduced. In particular, when the rock hardness exceeds the Protodyakonov hardness coefficient of 9, it is almost impossible to use a hard rock TBM for rock breaking. Only in a few cities, due to limitations in conditions that prevent the use of conventional drilling and blasting rock breaking methods and the availability of TBMs, have high-powered cantilevered horizontal axis hard rock TBMs been used, but the results have been far from ideal.

[0005] It is entirely foreseeable that drilling and blasting will remain an irreplaceable rock-breaking technology for the present and for a considerable period of time to come. However, it is well known in the industry that conventional drilling and blasting methods require the initial drilling and blasting of small-section inclined holes within the working face to create an indispensable free face (also known as a free face) for subsequent large-area vertical drilling and blasting. Even if the explosives in the entire borehole are detonated in a single operation, the rock-breaking process involves the explosives in the entire borehole being detonated in stages under the control of delayed detonators. The explosives in the inclined holes for blasting are detonated first to complete the drilling and blasting, and then the explosives in other vertical holes are detonated in sequence. However, along with drilling and blasting, a certain amount of high-energy rock fragments will inevitably be thrown tens of meters away from the working face. The practice of dumping rubble outside the affected area has long been criticized within the industry, and to date, no efficient and feasible technology has been found to overcome at least three prominent problems: First, because dumped rubble can cause severe impact damage to construction equipment, pipelines, ventilation ducts, etc., within its affected area, all such equipment, pipelines, and ventilation ducts must be moved outside the affected area before blasting operations, or necessary protective measures must be taken. After the blasting operation, the equipment, pipelines, and ventilation ducts must be restored to their previous state. This workload adds to the overall workload and slows down the construction process. Second, the dumped rubble is widely distributed, and collecting it is equally time-consuming, labor-intensive, and time-consuming, further slowing down the construction process. Third, dumped rubble may damage equipment and ventilation ducts that have not yet been properly installed. The impact damage caused by shotcrete covering of anchor bolts and metal mesh in the area is significant and may even lead to anchor bolt failure. Therefore, it is necessary to cover the roadway / tunnel with shotcrete before blasting operations. The production process is always "one step distance for drilling and blasting rock → one step distance for anchor mesh support → one step distance for shotcrete". Accordingly, each shotcrete covering of the roadway / tunnel area is only one construction step distance. For small cross-section roadways / tunnels, the time occupied by the wet shotcrete machine and pipeline flushing is seriously unbalanced with the amount of shotcrete work. As a result, wet shotcrete, which is technically superior to dry shotcrete, has not been widely promoted and applied in the construction of small cross-section roadways / tunnels.

[0006] To eliminate the problems caused by the external impact of rock debris in conventional drilling and blasting methods, some construction sites first use rock drilling equipment to create several conventional drilling and blasting holes in the rock mass of the working face. Then, they replace the conventional drilling and blasting holes with larger diameter drill bits to enlarge the holes, thus creating a free face for subsequent drilling and blasting excavation without external rock debris. Based on this, drilling and blasting excavation without external rock debris is then carried out, thereby completing the conventional drilling and blasting excavation work with external rock debris. While this method achieves the goal of eliminating ejected rock debris through drilling and blasting, it also has significant drawbacks. Secondary enlargement of conventionally drilled and blasted rock boreholes is time-consuming, impacting construction speed. More importantly, to meet the required borehole diameter after enlargement, the capacity and size of the rock drilling rigs used in the drilling equipment significantly exceed those used for conventionally drilled and blasted rock boreholes. This inevitably leads to a larger angle between the drilled and blasted rock boreholes located around the tunnel / tunnel and the tunnel / tunnel centerline. This will inevitably increase the deviation in the formation of the tunnel / tunnel after blasting, thereby increasing material consumption and construction cost per meter of the project.

[0007] In conclusion, in order to eliminate the series of drawbacks caused by the external disposal of rock debris in conventional drilling and blasting rock construction methods, and to avoid the shortcomings of existing technologies for eliminating the external disposal of rock debris in conventional drilling and blasting rock construction methods, it is essential to develop new construction equipment. Utility Model Content

[0008] In view of this, the present invention provides a multifunctional tunnel / tunnel excavation construction equipment, which is substantially different from the existing technology used to eliminate the external throwing of rock debris in conventional drilling and blasting rock excavation methods. It can not only eliminate the drawbacks of rock debris throwing in conventional drilling and blasting rock excavation methods and improve the efficiency and speed of construction operations, but also will not increase the deviation of tunnel / tunnel formation after blasting.

[0009] The technical solution of this utility model is: a multi-functional tunnel / roadway excavation construction equipment, comprising: a chassis, the chassis including a frame and tracked walking parts installed on the left and right sides of the frame; a rock drilling device and a mechanical grooving device are provided on the chassis, the mechanical grooving device is located in the center of the frame, and the rock drilling device is located on both sides of the frame; the rock drilling device includes a boom component and a rock drilling mechanism, the boom component including a boom, the rear end of the boom being 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; the mechanical grooving device includes a power head, a first slide block, a first slide rail, a feed power device, a drill rod, and a clamp. The power head is connected to or integrally formed with the first slide block. The power head is equipped with a chuck. The first slide rail and the clamp are fixedly installed on the frame. The first slide block is slidably installed on the first slide rail. The feed power device is located between the frame and the first slide block. The drill rod passes through the clamp and the chuck in a detachable manner and can be drivenly connected to the chuck.

[0010] The drill rod has a drill bit installed at its front end in a detachable manner. The drill bit is a hollow annular drill bit used to create a core-retaining annular borehole as the free face for drilling blasted rock.

[0011] 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.

[0012] The rock drilling mechanism includes a rock drilling rig, a second slide block, a rock drilling frame, and a propulsion mechanism. The rock drilling rig is fixedly connected to or integrally formed with the second slide block. The second slide block is slidably mounted on the rock drilling frame. The propulsion mechanism is located between the second slide block and the rock drilling frame. This is referred to as Scheme A. Alternatively, the rock drilling mechanism includes a rock drilling rig, a second slide 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 second slide block. The second slide block is slidably mounted on the rock drilling frame. The propulsion mechanism is located between the second slide 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 provided between the rock drilling frame and the rock drilling slide. This is referred to as Scheme B.

[0013] 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 drive 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.

[0014] 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 arranged 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 III, connector IV, and rotary cylinder III. The boom's front end is hinged to one side of connector III via a cross-hinged joint, and two connector III swing cylinders are arranged between its front end and one side of connector III. The rear end of the swing cylinder of the connecting part III is hinged to the boom, and its front end is hinged to one side of the connecting part III through a cross joint. The mounting end of the rotary cylinder III is connected to the other side of the connecting part III, and the output end of the rotary cylinder III is connected to the connecting part IV. When the rock drilling mechanism adopts scheme A, the rock drilling frame is rotatably mounted on the connecting part IV, and a rock drilling frame drive cylinder is provided between the rock drilling frame and the connecting part IV. When the rock drilling mechanism adopts scheme B, the rock drilling slide is rotatably mounted on the connecting part IV, and a rock drilling slide swing cylinder is provided between the rock drilling slide and the connecting part IV.

[0015] 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.

[0016] The multi-functional tunnel / tunnel excavation equipment also includes a chassis lifting mechanism, which consists of four chassis lifting telescopic sleeves with built-in telescopic cylinders vertically mounted on the chassis.

[0017] The outer sleeve of the chassis lifting telescopic sleeve, which is located at the left front and right front of the chassis, is rotatably connected to the chassis.

[0018] After adopting the above technical solution, the present invention has achieved the following beneficial technical effects:

[0019] First, the rock drilling device and the mechanical slotting device are optimized and integrated onto a single tunnel / tunnel excavation equipment chassis, creating a tunnel / tunnel construction equipment with two different functions. This equipment can, with minimal interference, create drilling holes for blasting rock within the tunnel / tunnel working face using the rock drilling device, and simultaneously create freeface drilling holes (serving as the free face for blasting rock) within the tunnel / tunnel working face using the mechanical slotting device. Thus, a single piece of equipment can complete two production processes in blasting rock excavation: creating core-retaining annular boreholes (serving as the free face for blasting rock) and creating... Compared to using two single-function construction devices alternately at the working face, this invention significantly improves construction speed by eliminating the time spent on equipment alternation and almost completely eliminating the time spent on creating the free face borehole, which is relatively short in both operations. Furthermore, it enables mechanized operation of small-span tunnels / tunnels that previously lacked space for alternating between two single-function devices to create core-retaining annular free face boreholes and blasting rock boreholes. This lays the foundation for adopting advanced and efficient new drilling and blasting methods without external rock debris. Additionally, if the boom and drilling mechanism are connected by two rotary cylinders, the drilling device can further provide anchor bolt support for the surrounding rock of the tunnel / tunnel, in addition to its function of creating blasting boreholes. Moreover, the mechanical slotting device, besides creating free face boreholes, also has the function of deep-hole advance drilling. Because it is multifunctional, it is not only particularly suitable for tunnel / carrying construction with small spans, but also saves a lot of equipment purchase costs.

[0020] Secondly, the drill bit used for drilling the free face of blasted rock is a hollow annular drill bit. The free face created by this drill bit is a core-retaining annular borehole. Compared with using a solid drill bit to create a coreless borehole and then expanding it, although both achieve the same goal—creating a free face for blasted rock and eliminating the need for subsequent drilling and blasting with external rock cuttings—the core-retaining annular free face borehole created by the hollow annular drill bit not only has a different free face space distribution characteristics than the coreless free face borehole created by a conventional solid drill bit, thus improving the utilization rate of the free face space, greatly shortening the time for creating the free face borehole, and increasing the construction speed, but also significantly reducing the size of the mechanical cutting device, which is conducive to equipment miniaturization. Therefore, it can greatly improve the adaptability of the equipment to small cross-section tunnels / tunnels, and will not increase the deviation in tunnel / tunnel formation when drilling blasted rock.

[0021] Third, a chassis lifting mechanism is installed on the chassis. The chassis lifting mechanism consists of four chassis lifting telescopic sleeves with built-in telescopic cylinders, which are vertically installed on the chassis. The chassis lifting telescopic sleeves use the tunnel / tunnel floor as a support base. Driven by the built-in telescopic cylinders, they apply an upward lifting force to lift the chassis, thereby quickly changing the opening position and / or pitch angle of the free face drilling or advance drilling in the working face rock mass of the mechanical grooving device. Compared with changing the opening position of the free face drilling in the working face rock mass by moving the equipment chassis laterally, it can significantly save operation time.

[0022] Fourth, a boom sliding mechanism that can slide forward and backward is installed on the chassis. Through the longitudinal sliding of the boom slide and the lifting of the lifting seat, the boom can be further increased and the rock drilling mechanism can be driven to move forward and backward. The rear end of the boom also has a lifting function. This solves the problem of blind spots in the drilling operation caused by installing the rock drilling device on both sides of the equipment chassis due to the mechanical grooving device. It also makes it easier for the rock drilling device to create blasting holes and carry out anchor bolt support operations in a larger area without moving the chassis.

[0023] In summary, this utility model equipment, with its more efficient and advanced technology, solves one of the key problems hindering the improvement of the mechanization level of tunneling construction by conventional drilling and blasting rock breaking methods—a series of drawbacks caused by the external throwing of high-energy rock fragments. It will significantly promote the advancement of small-span tunnel / cartridge excavation technology, greatly improve the mechanization level, construction speed, and work efficiency of small-span tunnel / cartridge excavation based on drilling and blasting methods, and reduce labor intensity. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of a multifunctional tunnel / tunnel excavation construction equipment of this utility model;

[0025] Figure 2 yes Figure 1 Schematic diagram of the structure of the mechanical grooving device;

[0026] Figure 3 yes Figure 1 Schematic diagram of the mid-arm sliding mechanism;

[0027] Figure 4 yes Figure 1 Schematic diagram of the structure of the medium rock drilling device;

[0028] Figure 5 yes Figure 4 Structural diagram of the boom assembly;

[0029] Figure 6 yes Figure 4 Schematic diagram of the structure of the rock drilling mechanism;

[0030] Figure 7 yes Figure 1 The diagram shown is a structural schematic of Embodiment 1 in the chassis-raised state;

[0031] Figure 8 yes Figure 7 A partial structural diagram of the chassis lifting telescopic sleeve in the front, shown in Embodiment 1, is in a horizontal state.

[0032] Figure 9 yes Figure 8 A partial structural diagram of the mid-chassis lifting and telescopic sleeve in a vertical position;

[0033] Figure 10 yes Figure 7 A partial structural diagram of the chassis lifting telescopic sleeve located at the rear in Embodiment 1 shown;

[0034] Figure 11 This is a schematic diagram of the structure of Embodiment 2 of a multifunctional tunnel / tunnel excavation construction equipment of this utility model;

[0035] Figure 12 yes Figure 11 Schematic diagram of the structure of the medium rock drilling device;

[0036] In the picture:

[0037] 1. Chassis; 13. Chassis lifting telescopic sleeve; 131. Outer sleeve; 132. Inner sleeve; 133. Connecting seat; 14. Chassis lifting telescopic sleeve; 141. Outer sleeve; 142. Inner sleeve;

[0038] 2. Mechanical grooving device; 21. Drill bit; 22. Clamping device; 23. Support device; 24. Drill rod; 25. Chuck; 26. First slide block; 27. Power head; 28. First slide rail;

[0039] 3. Boom sliding mechanism; 31. Boom base; 32. Sliding power device; 33. Boom slide rail; 34. Boom slide block; 35. Lifting seat;

[0040] 4a. Rock drilling equipment; 4b. Rock drilling equipment;

[0041] 41. Boom assembly; 411. Transition connector; 412. Boom swing cylinder; 413. Boom; 414. Connector III swing cylinder; 415. Connector III; 416. Slewing cylinder III; 417. Slewing cylinder I; 418. Connector I; 419. Slewing cylinder II; 420. Connector II;

[0042] 42. Rock drilling mechanism; 421. Second slide; 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; 428. Connecting part IV;

[0043] a, b, c, and d are all cross-shaped hinge 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 1 As shown, a multi-functional tunnel / gutter excavation construction equipment includes a chassis 1 comprising a frame and tracked traveling units mounted on the left and right sides of the frame. A rock drilling device 4a and a mechanical grooving device 2 are mounted on the chassis 1. The mechanical grooving device 2 is located at the center of the frame, and the rock drilling device 4a is located on both sides of the chassis 1. In this embodiment, the rock drilling device 4a is mounted on the chassis 1 via a boom sliding mechanism 3, and a chassis lifting mechanism is provided on the chassis 1.

[0047] The mechanical slotting device 2 is used to create a borehole in the rock mass of the working face in front of the chassis 1 as a free face for drilling blasting, and this borehole is hereinafter referred to as the free face borehole; or, the mechanical slotting device 2 is used to create a free face borehole in the rock mass of the working face in front of the chassis 1, and can also carry out advance drilling operations in the rock mass in front of the chassis 1.

[0048] The rock drilling device 4a is used to create a drilling hole for blasting rock in the working face rock mass in front of the chassis 1; or, it is used to create a drilling hole for blasting rock in the working face rock mass in front of the chassis 1 and to provide anchor bolt support for the surrounding rock of the tunnel / tunnel.

[0049] The boom sliding mechanism 3 is used to eliminate the problem of blind spots in the operation of the rock drilling device 4a caused by installing the rock drilling device 4a on both sides of the equipment chassis 1 and setting the mechanical slotting device 2. It can further increase the forward and backward movement range of the rock drilling device 4a, and also facilitate drilling blasting holes and carrying out anchor bolt support operations in a larger range.

[0050] The chassis lifting mechanism uses the tunnel / tunnel floor as a support base. Driven by its built-in telescopic cylinder, it applies an upward lifting force to the chassis 1, thereby changing the opening position and / or pitch angle of the mechanical grooving device 2 in the working face rock mass to create the free face borehole or advance drilling borehole.

[0051] The specific structure of the above-mentioned main components is described in detail below.

[0052] Figure 2 The specific structure of the mechanical grooving device 2 is shown, combined with Figure 1 The mechanical grooving device 2 includes a power head 27, a first slide block 26, a first slide rail 28, a feed power unit, a drill rod 24, a support 23, and a clamp 22. The power head 27 is connected to or integrally formed with the first slide block 26. The power head 27 is equipped with a chuck 25. The first slide rail 28, the support 23, and the clamp 22 are fixed to the frame. The first slide block 26 is slidably mounted on the first slide rail 28. The feed power unit (not shown in the figure, preferably a telescopic cylinder, but other linear power units) is located between the frame and the first slide block 26. The drill rod 24 detachably passes through the clamp 22, the support 23, and the chuck 25, and can be drivenly connected to the chuck 25. The support 23 is not a mandatory component but an optional component.

[0053] In this embodiment, the front end of the drill rod 24 is detachably equipped with a drill bit 21, which is an annular hollow drill bit. The annular hollow drill bit 21 is used to create a core-retaining annular free face borehole in the rock mass of the working face. Compared to using conventional solid drill bits to create coreless freeface boreholes and then secondary enlargement, this method achieves the same goal—creating freefaces for drilling blasted rock. Subsequent drilling of blasted rock does not require drilling and blasting trenches with external rock debris, eliminating a series of related problems caused by the external throwing of high-energy rock fragments in drilling and blasting trenches. However, the core-retaining annular freeface boreholes created using hollow annular drill bits not only have a different freeface space distribution characteristics than coreless freeface boreholes created by conventional solid drill bits, thus improving the utilization rate of freeface space, greatly shortening the time required to create freefaces, increasing construction speed, and significantly reducing the size of mechanical trenching devices, which is conducive to equipment miniaturization and greatly improves the adaptability of equipment to small cross-section tunnels / tunnels, but also does not increase the forming deviation of tunnels / tunnels after blasting.

[0054] Solid core drill bits are also applicable to other operations, such as advanced drilling operations in the rock mass in front of the working face.

[0055] Figure 3 The specific structure of the boom sliding mechanism 3 is shown, combined with Figure 1 and Figure 4 The chassis 1 is equipped with a boom sliding mechanism 3 that can slide back and forth. The boom sliding mechanism 3 includes a boom slide rail 33 and a boom slide seat 34. The boom slide rail 33 is longitudinally arranged on the boom base 31, and the boom base 31 is fixed to the chassis 1. The boom slide seat 34 is slidably or rollingly mounted on the boom slide rail 33. A sliding power device 32 is provided between the boom base 31 and the boom slide seat 34. The sliding power device 32 is preferably a telescopic cylinder, but it can also be other linear power devices. The rear end of the boom 413 is movably mounted on the lifting seat 35 with its front end swinging in both vertical and horizontal dimensions. The lifting seat 35 is slidably mounted on the boom slide seat 34. A lifting power device (not shown in the figure) is provided between the lifting seat 35 and the boom slide seat 34. 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 31 can be regarded as part of the chassis 1.

[0056] In this example, the sliding power device 32, which is set between the chassis 1 and the boom slide 34, generally refers to the power device that drives the boom slide to move relative to the slide rail. It includes both the boom slide slidingly 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.

[0057] Of course, if the lifting seat 35 is not set, the rear end of the boom 413 is mounted on the boom slide 34 with its front end swinging in both vertical and horizontal dimensions (that is, the transition connecting seat 411 is fixedly connected to the boom slide 34). The advantage is that the structure is simplified, but the flexibility of the rock drilling device 4a is reduced and its adaptability to the working environment will be worse.

[0058] like Figure 4 , Figure 5 and Figure 6As shown, the rock drilling device 4a 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 35 of the boom sliding mechanism 3, 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 with the longitudinal movement of the boom sliding mechanism's boom slide 34 and rise and fall with the rise and fall of the lifting seat 35. This not only solves the problem of blind spots in the operation of the rock drilling device caused by setting the rock drilling device on both sides of the equipment chassis and setting a mechanical grooving device, but also further increases the forward and backward movement range of the rock drilling device 4a, making it easier to create blasting rock boreholes more quickly.

[0059] Of course, without the boom sliding mechanism 3, the rear end of the boom 413 can be directly and movably connected to the chassis 1.

[0060] Figure 5 The specific structure of boom component 41 is shown, combined with Figure 1 , Figure 3 and Figure 4 The rear end of the boom 413 is hinged to the transition connecting seat 411 via a cross joint. The transition connecting seat 411 is fixedly connected to or integrally set with the lifting seat 35. 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 joint, and its front end is hinged to the boom 413. By extending and retracting the two boom swing cylinders 412, the boom 413 can be driven to swing its front end in both vertical and horizontal dimensions.

[0061] The front end of the boom 413 is connected to the rock drilling slide 424 via connector III 415, connector IV 428, and rotary cylinder III 416 (as shown in the figure, it is arranged longitudinally).

[0062] The front end of the boom 413 is hinged to one side of the connector III 415 via a cross joint c. Two swing cylinders 414 for the connector III 415 are installed between one side of the connector III 415 and the front of the boom 413. The rear end of the swing cylinder 414 is hinged to the boom 413, and its front end is hinged to one side of the connector III 415 via a cross joint d. By extending and retracting the two swing cylinders 414, the connector III 415 can be driven to swing in both vertical and horizontal dimensions. The mounting end of the rotary cylinder III 416 is connected to the other side of the connector III 415, and its output end is connected to the connector IV 428. By rotating the rotary cylinder III 416, the rock drilling mechanism 42 can be driven to swing around the rotation center of the rotary cylinder III 416. The rock drilling slide 424 is rotatably mounted on the connector IV 428 (the connector IV 428 is optimized to be a pin with an inner hole, and the rock drilling slide 424 is provided with a pin hole that rotatably engages with the pin with the inner hole). A rock drilling slide swing cylinder 427 is provided between the connector IV 428 and the rock drilling slide 424. The pitch angle of the rock drilling mechanism 42 can be adjusted by extending and retracting the rock drilling slide swing cylinder 427.

[0063] like Figure 6 As shown, the rock drilling mechanism 42 includes a rock drilling rig 422, a second slide block 421, a rock drilling frame 423, and a propulsion mechanism 425. The rock drilling rig 422 and the second slide block 421 are fixedly connected or integrally formed, and the second slide block 421 is slidably mounted on the rock drilling 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 located between the second slide block 421 and the rock drilling frame 423 and is used to drive the second slide block 421 to slide relative to the rock drilling 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 abut against the working face rock wall or surrounding rock wall, 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.

[0064] 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. When the rock drilling mechanism 42 adopts Scheme A, the rock drilling frame 423 is rotatably mounted on the connecting part IV 428, and a rock drilling frame drive cylinder 426 is provided between the rock drilling frame 423 and the connecting part IV 428; when the rock drilling mechanism adopts Scheme B, the rock drilling slide 424 is rotatably mounted on the connecting part IV 428, and a rock drilling slide swing cylinder 427 is provided between the rock drilling slide 424 and the connecting part IV 428.

[0065] Figure 7 This shows the raised state of chassis 1, combined with Figure 1 The chassis 1 is equipped with a chassis lifting mechanism, which consists of four chassis lifting telescopic sleeves 13 and 14 vertically mounted on the chassis 1, each containing a telescopic cylinder. The chassis lifting telescopic sleeves 13 and 14 are supported by the tunnel / tunnel floor slab. Driven by their built-in telescopic cylinders, they apply an upward lifting force to the chassis 1, thereby quickly changing the opening position and / or pitch angle of the borehole or advance drilling hole created by the mechanical grooving device 2 in the working face rock mass.

[0066] See Figures 8-10 The chassis lifting telescopic sleeves 13, located at the left front and right front of the chassis 1, include an outer sleeve 131 and an inner sleeve 132. A telescopic cylinder or other linear power device is provided between the outer sleeve 131 and the inner sleeve 132. The outer sleeve 131 of the chassis lifting telescopic sleeves 13 at the left front and right front is rotatably mounted on the chassis 1 via a connecting seat 133. If a rotatable connection method is not used, the rock drilling device 4a will have a blind spot because if the height of the chassis lifting telescopic sleeve 13 is too small, it will not meet the requirements for the chassis lifting height. Conversely, if the height of the chassis lifting telescopic sleeve 13 meets the requirements for the chassis lifting height, the boom 413 and the chassis lifting telescopic sleeve 13 will interfere with each other. The chassis lifting telescopic sleeves 14, located at the left rear and right rear, include an outer sleeve 141 and an inner sleeve 142. A telescopic cylinder or other linear power device is provided between the outer sleeve 141 and the inner sleeve 142. The outer sleeve 141 is fixed to the chassis 1 (e.g., Figure 10 (As shown), of course, if necessary, the outer sleeve 141 can also be rotatably connected to the chassis 1.

[0067] Before raising chassis 1, first rotate the chassis lifting telescopic sleeves 13 on the left front and right front to a position perpendicular to the tunnel floor. Figure 9 (As shown), and lock it with a pin. After the lifting operation of chassis 1 is completed, rotate it to a state parallel to the roadway / tunnel floor. Figure 8 (as shown), and secured with a pin.

[0068] The multi-functional tunnel / tunnel excavation equipment disclosed in this embodiment, with its specific connection method between the rock drilling mechanism 42 and the front end of the boom 413 (a rotary hydraulic cylinder is provided between the front end of the boom and the rock drilling mechanism), is particularly suitable for creating blasting rock boreholes in the rock mass of the working face.

[0069] Example 2

[0070] like Figure 11 and Figure 12 As shown, Example 2 discloses another multi-functional tunnel / gutter excavation equipment, which is largely the same in structure and principle as Example 1, except that the connection method between the boom front end and the rock drilling mechanism is different, such as... Figure 12 As shown, 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).

[0071] 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.

[0072] 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.

[0073] 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 drive cylinder 426 is provided between the rock drilling frame 423 and the connecting part II 420.

[0074] The multi-functional tunnel / tunnel excavation equipment disclosed in this embodiment, with its specific connection method between the rock drilling mechanism 42 and the front end of the boom 413 (two rotary cylinders are provided between the front end of the boom and the rock drilling mechanism), is particularly suitable for creating blasting rock boreholes in the working face rock in front of the chassis and implementing anchor bolt support for the surrounding rock of the tunnel / tunnel.

[0075] In summary, this utility model equipment, with its more efficient and advanced technology, better solves one of the key problems hindering the improvement of the mechanization level of conventional drilling and blasting rock breaking methods in tunneling construction—a series of drawbacks caused by the external throwing of high-energy rock fragments. It will significantly promote the advancement of small-span tunnel / cartridge excavation technology, greatly improve the mechanization level, construction speed, and work efficiency of small-span tunnel / cartridge excavation based on drilling and blasting methods, and reduce labor intensity.

[0076] 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 multi-functional tunnel / roadway excavation construction equipment, comprising: The chassis includes a frame and tracked walking parts mounted on the left and right sides of the frame; characterized in that, The chassis is equipped with a rock drilling device and a mechanical grooving device. The mechanical grooving device is located in the center of the frame, and the rock drilling device is located on both sides of the frame. The rock drilling device includes a boom assembly and a rock drilling mechanism. The boom assembly includes a boom, the rear end of which 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. The mechanical slotting device includes a power head, a first slide block, a first slide rail, a feed power device, a drill rod, and a clamp. The power head is connected to or integrally formed with the first slide block. The power head is equipped with a chuck. The first slide rail and the clamp are fixedly installed on the frame. The first slide block is slidably installed on the first slide rail. The feed power device is located between the frame and the first slide block. The drill rod passes through the clamp and the chuck in a detachable manner and can be drivenly connected to the chuck.

2. The multi-functional tunnel / tunnel excavation equipment as described in claim 1, characterized in that, The drill rod has a drill bit detachably mounted at its front end. The drill bit is a hollow annular drill bit used to create a core-retaining annular borehole for drilling the free face of blasted rock.

3. The multi-functional tunnel / tunnel excavation equipment as described in claim 1, 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.

4. The multi-functional tunnel / tunnel excavation equipment as described in claim 3, characterized in that, The rock drilling mechanism includes a rock drilling rig, a second sliding block, a rock drilling frame, and a propulsion mechanism. The rock drilling rig is fixedly connected to or integrally formed with the second sliding block. The second sliding block is slidably mounted on the rock drilling frame. The propulsion mechanism is disposed between the second sliding block and the rock drilling frame, denoted as Scheme A; or The rock drilling mechanism includes a rock drilling rig, a second slide 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 second slide block. The second slide block is slidably mounted on the rock drilling frame. The propulsion mechanism is disposed between the second slide 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.

5. The multi-functional tunnel / tunnel excavation equipment as described in claim 4, 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 drive 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.

6. The multi-functional tunnel / tunnel excavation equipment as described in claim 4, 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 III, connector IV, and rotary cylinder III; The front end of the boom is hinged to one side of the connector III via a cross joint. Two swing cylinders of the connector III are provided between its front part and one side of the connector III. The rear end of the swing cylinder of the connector III is hinged to the boom, and its front end is hinged to one side of the connector III via a cross joint. The mounting end of the rotary cylinder III is connected to the other side of the connector III, and the output end of the rotary cylinder III is connected to the connector IV. When the rock drilling mechanism adopts scheme A, the rock drilling frame is rotatably mounted on the connecting member IV, and a rock drilling frame drive cylinder is provided between the rock drilling frame and the connecting member IV; when the rock drilling mechanism adopts scheme B, the rock drilling slide is rotatably mounted on the connecting member IV, and a rock drilling slide swing cylinder is provided between the rock drilling slide and the connecting member IV.

7. The multi-functional tunnel / tunnel excavation equipment as described in claim 5 or 6, 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.

8. The multi-functional tunnel / tunnel excavation equipment as described in claim 1, characterized in that, The multi-functional tunnel / tunnel excavation equipment also includes a chassis lifting mechanism, which consists of four chassis lifting telescopic sleeves with built-in telescopic cylinders vertically mounted on the chassis.

9. The multi-functional tunnel / tunnel excavation equipment as described in claim 8, characterized in that, The outer sleeve of the chassis lifting telescopic sleeve, located at the left front and right front of the chassis, is rotatably connected to the chassis.

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