CN114776217A

CN114776217A - Small-section gallery excavation drill jumbo

Info

Publication number: CN114776217A
Application number: CN202210708584.2A
Authority: CN
Inventors: 马飞; 刘玉超; 周志鸿; 金纯�; 耿晓光; 高路路
Original assignee: University of Science and Technology Beijing USTB
Current assignee: University of Science and Technology Beijing USTB
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2022-07-22
Anticipated expiration: 2042-06-22
Also published as: CN114776217B

Abstract

The utility model provides a small-section gallery tunnelling drill jumbo, including a plurality of functional modules, a plurality of functional modules include drive module, platform module, operating module, electric liquid and connect module and operation module soon, wherein can disassemble between a plurality of functional modules for mutually independent module, perhaps assemble into a whole equipment. The small-section tunneling drilling jumbo provided by the embodiment of the disclosure can realize smooth entering, flexible transferring and efficient operation of the drilling jumbo in a small-section roadway.

Description

Small-section gallery excavation drill jumbo

Technical Field

The utility model relates to the field of engineering machinery and mining machinery, in particular to a small-section gallery excavation rock drilling trolley.

Background

The drilling and blasting method construction has the advantages of economy, high efficiency, strong adaptability to geology and the like, and is the most common technical means in mine construction. The rock drilling jumbo is important equipment for drilling blast holes or anchor rod holes in the drilling and blasting construction of mine roadways and tunnel engineering, can carry multiple rock drills to drill holes simultaneously, and has the characteristics of high operation efficiency, good construction quality, high safety coefficient, low relative cost, small environmental pollution and high automation degree compared with a pneumatic rock drill.

A roadway tunneling and rock drilling trolley is one of key equipment for mining. Aiming at the problem of the roadway tunneling of medium and large sections, the medium and large rock drilling equipment has a mature and advanced technical scheme and is widely applied to the construction of large mines and tunnels.

However, for rare metal mines such as gold mine and tungsten-molybdenum mine, the vein has the characteristics of narrowness and irregularity, and the mine is not suitable for large-section roadway mining, the section of the roadway is mostly smaller than 2.5m multiplied by 2.5m, the operation space is small, and medium-and large-sized rock drilling equipment cannot enter the mine. Therefore, the mines mainly depend on workers to operate the pneumatic rock drill, and are high in labor intensity, poor in operation environment and unstable in drilling quality. In addition, the mining mode of the rare metal mines such as gold mine, tungsten-molybdenum mine and the like can not be changed greatly in a long time. Therefore, the problems that large rock drilling equipment is difficult to enter, the traditional pneumatic rock drill is limited in operation capacity, and narrow operation field equipment is difficult to move in the process of small-section roadway tunneling are solved.

In order to solve the above problems of the section roadway excavation, in the related art, document 1 (paint cube, small-sized excavation and rock drilling jumbo design calculation [ J ] vehicle and power engineering, 2017(12): 204-.

Chinese patent ZL201611090882.0 discloses a multi-functional rock drilling jumbo system of modularization, provides a solution for mountain tunnel drilling blasthole mechanized construction operation, through structural design such as optimizing track, ring rail frame, chassis assembly, operation platform, has obtained better operation performance and more diversified operation function, has solved the problem that artifical demand is big, intensity of labour is big, operational environment is abominable, has the potential safety hazard in the large cross section tunnel construction operation.

Although the prior art respectively makes beneficial improvement and optimization to the structure of the tunneling rock drilling jumbo, the two designs can not meet the operation requirement of small roadways with the cross section of 2.5m multiplied by 2.5m and below, and can not solve the problems of rapid disassembly and assembly and equipment transportation.

Disclosure of Invention

The embodiment of the disclosure provides a small-section tunneling drill jumbo, which can realize smooth entering, flexible transfer and efficient operation of the drill jumbo in a small-section roadway.

The technical scheme provided by the embodiment of the disclosure is as follows:

the embodiment of the disclosure provides a small-section roadway tunneling drill jumbo, which comprises a plurality of functional modules, wherein the functional modules comprise a driving module, a platform module, an operating module, an electro-hydraulic quick-connection module and an operating module, and the functional modules can be disassembled into independent modules which are mutually independent or assembled into a whole device.

Illustratively, each of the plurality of functional modules has a height ≦ 1550mm and a width ≦ 1140 mm.

Illustratively, each module in the plurality of functional modules is disassembled or assembled through a pin shaft or a standard fastener.

Illustratively, the driving module includes:

the driving chassis comprises a rail wheel plate vehicle, a hydraulic motor, a speed reducer and a control valve group, wherein the speed reducer is connected to the hydraulic motor, the speed reducer and the control valve group are matched to drive the rail wheel plate vehicle to travel, and a first dismounting structure capable of being dismounted or assembled with the platform module is arranged at the front end of the rail wheel plate vehicle;

the hydraulic power pump station is used for providing a hydraulic power oil source for the operation module, the hydraulic power pump station is arranged on the driving chassis and comprises an oil tank, an oil pump, a motor and a high-pressure filter, the motor is connected with the oil tank and the oil pump, the high-pressure filter is arranged on the oil tank, the oil pump is connected with the hydraulic motor and used for providing power for the hydraulic motor, the control valve group is arranged on a pipeline between the oil pump and the hydraulic motor, the motor and the oil pump are vertically arranged on the rail wheel plate vehicle, and an oil suction port of the oil pump, an oil outlet of the oil tank and an oil inlet of the high-pressure filter are linearly distributed; and

the water pump assembly is used for supplying water to the operation module, the water pump assembly is arranged on the driving chassis and comprises a water pump and a cooler communicated with the water pump, and the cooler is used for converting water provided by the water pump into cooling water.

Illustratively, the platform module includes:

a rail-wheel chassis;

the cab is arranged on the rail wheel chassis and comprises a protective coaming, a seat arranged in a cavity defined by the protective coaming, a protective ceiling capable of lifting and a lighting device arranged on the protective ceiling;

the rotating yaw oil cylinder support is arranged on the rail wheel chassis and is positioned at the front end of the rail wheel chassis; and

a mounting structure for fixing other functional modules, mounting structure includes second dismouting structure, third dismouting structure, fourth dismouting structure and fifth dismouting structure, wherein the front end of platform module passes through second dismouting structure detachably connects the operation module, the middle part of platform module is passed through third dismouting structure detachably connects operation module, the front end and the rear end of platform module pass through fourth dismouting structure detachably respectively connects one electricity liquid connects the module soon, just the rear end of platform module passes through fifth dismouting structure with drive module detachably connects.

Illustratively, the rotary yaw cylinder support has 2-direction degrees of freedom to swing around a Z axis and rotate around an X axis, the Z axis is perpendicular to the rail wheel chassis, the X axis is parallel to the rail wheel chassis, the rotary yaw cylinder support is provided with a mounting flange, and the mounting flange is provided with a threaded hole for connecting and mounting a mechanical arm.

Illustratively, the protective canopy includes: the rail wheel chassis is arranged on the ceiling, the upright columns are arranged between the ceiling and the rail wheel chassis and located on two opposite sides of the ceiling, and lifting oil cylinders are arranged in the upright columns.

Illustratively, the job module includes: a luffing cylinder translation system, a drill boom support, a drill boom, a bracket, a propeller, a compensation cylinder, a drill rod, a rock drill and an oil pipe guide wheel, wherein,

the drill boom support is provided with a mounting flange for detachably connecting with the platform module;

the front end of the drill boom is hinged with the drill boom support through a first pin shaft, and the tail end of the drill boom is connected with the bracket through a second pin shaft;

the variable-amplitude oil cylinder translation system comprises a first variable-amplitude oil cylinder H1, a second variable-amplitude oil cylinder H2, a hydraulic pipeline connected with the first variable-amplitude oil cylinder H1 and the second variable-amplitude oil cylinder H2, and a control valve arranged on the hydraulic pipeline, wherein a rod cavity of the first variable-amplitude oil cylinder H1 is communicated with a rod cavity of the second variable-amplitude oil cylinder H2, one end of the first variable-amplitude oil cylinder H1 is hinged with the drill boom support through a third pin shaft, the other end of the first variable-amplitude oil cylinder H1 is hinged to a first position in the middle of the drill boom through a fourth pin shaft, one end of the second variable-amplitude oil cylinder H2 is hinged to the lower part of the bracket through a fifth pin shaft, and the other end of the second variable-amplitude oil cylinder H2 is hinged to a second position in the middle of the drill boom through a sixth pin shaft;

the compensation oil cylinder is arranged on the bracket and is connected with the propeller, and the compensation oil cylinder is used for adjusting the extension amount of the propeller so as to compensate the clearance between the drill bit and the tunnel face caused by the lifting of the drill boom;

the thruster comprises two channel steels, and the leg width parts of the two channel steels are symmetrically arranged outwards, so that the leg width parts of the two channel steels form a guide rail sliding plane;

the oil pipe guide wheel is arranged on the propeller, the rock drilling machine is supported on the bracket and is connected with the propeller, and a guide rail of the rock drilling machine is arranged on the sliding plane in a sliding manner and is used for completing the propelling action;

when the handle of the first reversing valve is pushed to the right position of the working position of the valve core, high-pressure oil enters a rodless cavity of the first variable-amplitude oil cylinder H1 to push a piston rod of the first variable-amplitude oil cylinder H1 to extend out, so that the drill boom rotates anticlockwise around the first pin shaft to lift the drill boom, hydraulic oil in a rod cavity of the first variable-amplitude oil cylinder H1 is extruded into a rod cavity of the second variable-amplitude oil cylinder H2, and the piston rod of the second variable-amplitude oil cylinder H2 contracts to drive the bracket to rotate clockwise around the second pin shaft so as to press the thruster; when the second reversing valve is pushed to the right position of the working position of the valve core, high-pressure oil enters a rodless cavity of the second luffing oil cylinder H2 and pushes a piston rod of the second luffing oil cylinder H2 to extend out, so that the bracket rotates clockwise around the second pin shaft, the first luffing oil cylinder H1 does not take oil, the drill boom keeps still, and the propeller presses down; when the second reversing valve is pushed to the left position of the working position of the valve core, the bracket moves anticlockwise around the second pin shaft, and the propeller is lifted upwards.

Illustratively, the relationship between the cylinder bore diameter and the piston rod diameter of the first luffing cylinder H1 and the second luffing cylinder H2 has an equation relationship as shown in the following formula (III):

in the formula (I), the compound is shown in the specification,

of the first luffing cylinder H1The inner diameter of the cylinder barrel;

the diameter of the piston rod of the first luffing cylinder H1;

the inner diameter of the cylinder barrel of the second luffing cylinder H2;

the diameter of the piston rod of the second luffing cylinder H2;

wherein, the first and the second end of the pipe are connected with each other,

the diameter of a piston rod of the second luffing cylinder H2

According to the following formula

Determining:

。

illustratively, the electro-hydraulic quick connection module comprises a combined mounting plate, a plurality of paths of hydraulic quick connection joints and a plurality of paths of electric quick connection joints, wherein the plurality of paths of hydraulic quick connection joints and the plurality of paths of electric quick connection joints are arranged on the combined mounting plate, one end of each path of joint in the plurality of paths of hydraulic quick connection joints is connected with an upstream pipeline, the other end of each path of joint is connected with a downstream pipeline, and the upstream pipeline and the downstream pipeline can be quickly connected and disconnected by plugging and unplugging the hydraulic quick connection joints; the hydraulic quick connector comprises a hydraulic quick connector, a plurality of electric quick connectors and a plurality of connecting rods, wherein one end of each connector in the plurality of electric quick connectors is connected with an upstream line, the other end of each connector in the plurality of electric quick connectors is connected with a downstream line, the upstream line and the downstream line can be quickly connected and disconnected through plugging and unplugging the electric quick connectors, and the end faces of the hydraulic quick connectors are flush and are self-locking sealing type quick connectors.

The beneficial effects brought by the embodiment of the disclosure are as follows:

the small-section tunneling drill jumbo provided by the embodiment of the disclosure adopts a modularized technical scheme capable of being quickly disassembled and assembled, and is applicable to the roadway tunneling operation of small sections, the small-section tunneling drill jumbo is divided into a driving module according to the functional attributes and the structural characteristics, a platform module, an operation module, a plurality of modules such as an electro-hydraulic quick-connection module and an operation module, each module adopts an independent design scheme, can be independently disassembled and transported, and meets the requirements of quick disassembly and assembly combination with other functional modules, the whole assembly of the drill jumbo can be completed on site, and therefore the problems that the existing large-scale drill jumbo in a narrow and irregular rare metal mine roadway is difficult to enter and the risk coefficient is high in labor intensity of manual operation can be effectively solved, and the requirements of smooth entering, flexible transportation and high-efficiency operation of the drill equipment under the special terrains are met.

Drawings

The accompanying drawings, which are incorporated herein and constitute part of this specification, illustrate embodiments of the disclosure and, together with the description, further serve to explain the principles of the disclosure and to enable a person skilled in the pertinent art to make and use the disclosure.

Fig. 1 is a schematic view of an overall assembly structure of a small-section roadway excavation rock drilling jumbo according to an embodiment of the present disclosure;

fig. 2 is a schematic design size diagram of a small-section roadway driving rock-drilling jumbo provided in an embodiment of the present disclosure, wherein (a) in fig. 2 is a front view, and (b) in fig. 2 is a top view;

fig. 3 is a schematic perspective view of a driving module in a small-section roadway excavation and rock drilling trolley according to an embodiment of the present disclosure, where (a) in fig. 3 is a right side view, and (b) in fig. 3 is a left side view;

fig. 4 is a schematic perspective view of a platform module in a small-section roadway excavation rock-drilling jumbo according to an embodiment of the present disclosure, where (a) in fig. 4 is a right front side view, and (b) in fig. 4 is a right rear side view;

fig. 5 is a schematic perspective view of an operation module in a small-section roadway excavation rock-drilling jumbo according to an embodiment of the present disclosure;

fig. 6 is a schematic perspective view of an electro-hydraulic quick-connection module in a small-section roadway excavation and rock drilling trolley according to an embodiment of the present disclosure, where (a) in fig. 6 is a schematic view in a disconnected state, and (b) in fig. 6 is a schematic view in a butt-joint state;

fig. 7 is a schematic structural diagram of an operation module in a small-section roadway excavation rock drilling jumbo according to an embodiment of the present disclosure;

fig. 8 is a schematic diagram of a translation system of a luffing cylinder in a small-section roadway driving rock drilling jumbo according to an embodiment of the disclosure;

fig. 9 illustrates an assembly, installation and connection manner of modules in a small-section roadway driving rock drilling jumbo according to an embodiment of the present disclosure, where (a) in fig. 9 is a schematic diagram of a hinge joint between a driving module and a platform module pin, fig. 9 (b) is a schematic diagram of a bolt connection between an operating module and a platform module, fig. 9 (c) is a schematic diagram of a bolt connection between an electro-hydraulic quick-connection module and a platform module, and fig. 9 (d) is a schematic diagram of a bolt connection between an operating module and a platform module;

fig. 10 is a schematic diagram of a maximum operation range in the small-bore heading rock-drilling jumbo according to the embodiment of the present disclosure, where (a) in fig. 10 is a schematic diagram of an operation of the small-bore heading rock-drilling jumbo, and (b) in fig. 10 is a schematic diagram of a size of the small-bore heading jumbo in a dashed box in (a).

[ reference numerals ]

1. A drive module; 2. a platform module; 3. an operation module; 4. the electro-hydraulic quick connection module; 5. an operation module; 11. a drive chassis; 12. a hydraulic power pump station; 14. A power distribution cabinet; 21. a rail-wheel chassis; 22. a cab; 23. rotating the yaw oil cylinder support; 30. a mounting frame; 31. a hydraulic control valve group; 32. an electric control switch; 33. a meter; 34. a mounting frame; 41. assembling the mounting plate; 42. hydraulic quick-connection joints; 43. an electrical quick connect; 50. a luffing cylinder translation system; 52. a drill boom support; 53. a drill boom; 54. a bracket; 55. a first pin shaft; 56. a second pin shaft; 60. a propeller; 61. a compensation oil cylinder; 62. a drill stem; 63. a rock drill; 64. an oil pipe guide wheel; 111. a rail-wheel plate vehicle; 112. a hydraulic motor; 113. a speed reducer; 114. a control valve group; 115. a first disassembly and assembly structure; 121. an oil tank; 122. an oil pump; 123. a motor; 124. a high pressure filter; 131. a water pump; 132. a cooler; 221. protecting the enclosing plate; 222. a seat; 223. a protective ceiling; 224. an illumination device; 225. a fifth dismounting structure; 231. rotating the oil cylinder; 232. a transverse swing oil cylinder; 233. a protection plate; 234. installing a flange; 421. An upstream line; 422. a downstream pipeline; 431. an upstream line; 432. a downstream line; 423. a hydraulic quick female joint; 424. a hydraulic quick male joint; 433. an electrical male plug; 434. an electrical female plug; 511. a third pin shaft; 512. a fourth pin shaft; 513. a fifth pin shaft; 514. a sixth pin shaft; 515. A second directional control valve; 516. a balancing valve; 517. a first direction change valve; 2231. a shed roof; 2232. a column; 2233. a lift cylinder.

As shown, specific structures and devices are labeled in the figures in order to clearly enable construction of the embodiments of the disclosure, but this is merely an illustration and is not intended to limit the disclosure to the specific structures, devices and environments, which may be adjusted or modified by one of ordinary skill in the art according to specific needs and still be included in the scope of the appended claims.

Detailed Description

The small-bore excavation rock-drilling jumbo provided by the present disclosure will be described in detail below with reference to the accompanying drawings and specific embodiments. Meanwhile, it is described herein that the following embodiments are the best and preferred embodiments for the purpose of making the embodiments more detailed, and may be implemented in other alternative ways by those skilled in the art; also, the drawings are only for purposes of more particularly describing embodiments and are not intended to limit the present disclosure in particular.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

In general, terms may be understood at least in part from the context in which they are used. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in the singular or may be used to describe a combination of features, structures, or characteristics in the plural, depending, at least in part, on the context. Additionally, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead allow for the presence of other factors not necessarily explicitly described, depending at least in part on the context.

As used herein, the term "nominal" refers to a desired or target value, and a range of values above and/or below the desired value, of a characteristic or parameter set during a design phase of a production or manufacturing process for a component or process operation. The range of values may be due to slight variations in manufacturing processes or tolerances. As used herein, the term "about" indicates a value of a given amount that may vary based on the particular technology node associated with the subject semiconductor device. The term "about" may indicate a given amount of a value that varies, for example, within 5% -15% of the value (e.g., ± 5%, ± 10% or ± 15% of the value), based on the particular technology node.

It will be understood that the meaning of "on … …", "above … …" and "above … …" in this disclosure should be read in the broadest manner such that "on … …" means not only "directly on" but also including the meaning of "on" something with intervening features or layers therebetween, and "above … …" or "above … …" means not only "on" or "above" something, but may also include the meaning of "on" or "above" with no intervening features or layers therebetween.

Further, spatially relative terms such as "below …," "below …," "lower," "above …," "upper," and the like may be used herein for ease of description to describe one element or feature's relationship to another element or feature or elements, as illustrated in the figures. Spatially relative terms are intended to encompass different orientations in use or operation of the device in addition to the orientation depicted in the figures. The device may be otherwise oriented and the spatially relative descriptors used herein interpreted accordingly.

Fig. 1 is a schematic view of an assembly structure of a small-section roadway excavation rock drilling jumbo provided in an embodiment of the present disclosure. As shown in fig. 1, the small-section roadway tunneling and rock drilling jumbo provided by the embodiment of the present disclosure includes a plurality of functional modules, the plurality of functional modules include a driving module 1, a platform module 2, an operating module 3, an electro-hydraulic quick-connection module 4, and an operating module 5, wherein the plurality of functional modules can be disassembled into independent modules which are independent from each other, or assembled into an integral device.

In the above-mentioned scheme, but adopt quick assembly disassembly's modularization technical scheme, divide this small-section tunnelling drill jumbo into drive module 1 according to its functional attribute and structural feature, platform module 2, operating module 3, a plurality of modules such as electricity liquid connects module 4 and operation module 5 soon, every module adopts independent design, can independently disassemble the transportation, and compromise the quick assembly disassembly combination requirement between other functional modules, can accomplish drill jumbo whole equipment at the scene, thereby can effectively solve narrow and small, current large-scale drill jumbo gets into the difficulty in anomalous rare metal mine gallery, the big danger coefficient of manual operation intensity of labour is high problem, satisfy the smooth entering of rock drilling equipment under this type of special topography, the nimble transportation, high-efficient operation demand.

In an exemplary embodiment, as shown in fig. 2, the height of each module is less than or equal to 1550mm, the width of each module is less than or equal to 1140mm, in a traveling state of the drill jumbo, the height of the entire drill jumbo may be 1550mm, the width of the entire drill jumbo may be 1140mm, the length of the entire drill jumbo may be less than or equal to 7500mm (the length of the entire drill jumbo is the length of the entire drill when the drill boom is lowered to the lowest position, the rated output power may be 22kW, the maximum working area may be 2500mm × 2500mm, and the maximum drilling depth may be 2000 mm. The smallest section profile that the small-section gallery excavation rock drilling trolley in the embodiment of the disclosure can integrally enter is 2200mm multiplied by 2000mm, the smallest section profile that each module can pass after being disassembled is 1550mm multiplied by 1140mm, and a solution is provided for completing rock drilling operation when rock drilling equipment enters into a narrow and irregular gallery.

Therefore, the small-section roadway tunneling drill jumbo in the embodiment of the disclosure can effectively solve the problems that the existing large-scale drill jumbo is difficult to enter and has a high risk coefficient in manual operation labor intensity in a narrow and irregular rare metal mine roadway, and meets the requirements of smooth entering, flexible transferring and efficient operation of the drilling equipment under such special terrains.

In some exemplary embodiments, each of the plurality of functional modules may be disassembled or assembled by a pin or a standard fastener. According to the arrangement, the modules can be assembled and disassembled through the pin shaft or the standard fastener only by means of a simple tool, the assembly and disassembly are convenient, and the structure is simple. It is understood that, in practical applications, the removable manner between the modules is not limited to this. For example, any other suitable detachable manner such as a snap-fit assembly may be used.

In addition, in some exemplary embodiments, the driving module 1 may have walking, liquid supplying and water supplying functions, and is mainly used for providing a power source for rock drilling work and walking power for a whole vehicle.

Specifically, referring to fig. 3, the driving module 1 may include: drive chassis 11, hydraulic power pump station 12 and water pump assembly, wherein drive chassis 11 is used for realizing the vehicle walking function, drive chassis 11 can include rail wheel plate car 111, hydraulic motor 112, reduction gear 113 and valve unit 114, rail wheel plate car 111 is the plate car that has the rail wheel, and its mainly used realizes the walking function, wherein hydraulic motor 112 with reduction gear 113 mainly used realizes the drive the function of rail wheel, reduction gear 113 be connected to on the hydraulic motor 112 and with rail wheel coaxial coupling, valve unit 114 is used for control hydraulic motor 112's operating condition, hydraulic motor 112, reduction gear 113 and valve unit 114 cooperate, behind the switch-on power cable, can drive rail wheel plate car 111 independently walks. The front end of the rail-wheel plate vehicle 111 is provided with a first detachable structure 115 that can be detached or assembled with the platform module 2. For example, as shown in fig. 3, the first detachable structure 115 may be a hinge seat capable of being installed with a pin or a standard fastener, so that the platform module 2 can be connected with the hinge seat through the pin or the standard fastener, thereby achieving convenient and quick detachment.

The hydraulic power pump station 12 with the operation module 5 is connected, mainly used for the operation module 5 provides the hydraulic power oil supply, the hydraulic power pump station 12 includes oil tank 121, oil pump 122, motor 123 and high pressure filter 124, the motor 123 with the oil tank 121 the oil pump 122 is connected, high pressure filter 124 set up in on the oil tank 121. The oil pump 122 is further connected to the hydraulic motor 112, and is configured to provide power for the hydraulic motor 112, that is, provide power for the entire vehicle. The motor 123 and the oil pump 122 are vertically installed on the rail wheel plate vehicle 111, the oil suction port of the oil pump 122, the oil outlet of the oil tank 121 and the oil inlet of the high-pressure filter 124 are linearly distributed, that is, the oil suction port of the oil pump 122, the oil outlet of the oil tank 121 and the oil inlet of the high-pressure filter 124 are on the same straight line, for example, linearly distributed along the width or length extending direction of the whole vehicle, so that the width and length of the whole vehicle can be effectively reduced.

The water pump assembly is connected with the operation module 5, and the main function is to provide flushing water for the rock drilling operation of the operation module 5 and provide cooling water for a whole vehicle cooling system. The water pump assembly includes a water pump 131 and a cooler 132 in communication with the water pump 131, the cooler 132 being configured to convert water provided by the water pump 131 into cooling water.

In addition, for example, as shown in fig. 3, the driving module 1 may further include a power distribution cabinet 14, and the power distribution cabinet 14 may be mounted on a side of the vehicle body to facilitate wiring and operation.

The driving module 1 of the small-section roadway tunneling rock drilling trolley provided by the embodiment of the disclosure is a hydraulic power source and a driving traction vehicle, can be used for pulling other equipment in a narrow roadway and providing a hydraulic oil source for operation, has the advantage of one vehicle with multiple purposes, and is widely applied.

The platform module 2 mainly functions to provide an installation platform for other modules and provide an operation space for a driver, as shown in fig. 1 and 9, the operation module 3, the electro-hydraulic quick connection module 4 and the operation module 5 can be installed at corresponding positions of the platform module 2 through pin shafts or standard fasteners respectively.

Referring to fig. 4, the platform module 2 illustratively includes: rail wheel chassis 21, cab 22, swivel yaw cylinder support 23 and mounting structure. The rail-wheel chassis 21 is a chassis having rail wheels, the cab 22 may be installed on the rail-wheel chassis 21, and the cab 22 includes a guard fence 221, a seat 222 installed in a cavity defined by the guard fence 221, a guard ceiling 223 that can be raised and lowered, and a lighting device 224 installed on the guard ceiling 223. The rotating yaw cylinder support 23 is arranged on the rail wheel chassis 21 and is positioned at the front end of the rail wheel chassis 21. The mounting structure is used for fixing other functional modules, the mounting structure comprises a second dismounting structure, a third dismounting structure, a fourth dismounting structure and a fifth dismounting structure, wherein the front end of the platform module 2 is connected with the operation module 5 through the second dismounting structure in a detachable mode, the middle of the platform module 2 is connected with the operation module 3 through the third dismounting structure in a detachable mode, the front end and the rear end of the platform module 2 are connected with the electro-hydraulic quick-connection module 4 through the fourth dismounting structure in a detachable mode respectively, and the rear end of the platform module 2 is connected with the driving module 1 in a detachable mode through the fifth dismounting structure 225.

For example, the second dismounting structure, the third dismounting structure, the fourth dismounting structure and the fifth dismounting structure in the mounting structure may be structures that can be detachably connected to other modules through pins or standard fasteners, such as mounting holes. For example, as shown in fig. 4, the fifth dismounting structure 225 may be a hinge seat or the like.

Illustratively, the rotational yaw cylinder support 23 has 2 directional degrees of freedom to swing around a Z axis perpendicular to the rail wheel chassis 21 and to rotate around an X axis parallel to the rail wheel chassis 21, and the rotational yaw cylinder support 23 may be composed of a rotation cylinder 231, a yaw cylinder 232, a fender 233, and the like. The rotation cylinder 231 is rotatable about the Z-axis (longitudinal direction), and the yaw cylinder 232 is connected to the rotation shaft of the rotation cylinder 231 and is capable of swinging laterally. And the rotating yaw cylinder support 23 is provided with a mounting flange 234, and the mounting flange 234 is provided with a threaded hole for connecting and mounting a mechanical arm. For example, the threaded hole can be an M20 threaded hole for connecting and mounting other mechanical arms, or the mounting flange can also be provided with a mounting hole for connecting other functional parts to expand the use function of the mounting flange.

In some exemplary embodiments, the protective roof 223 includes: the track wheel device comprises a ceiling 2231 and upright posts 2232 which are arranged between the ceiling 2231 and the track wheel chassis 21 and are positioned at two opposite sides of the ceiling 2231, wherein a lift cylinder 2233 is arranged in the upright posts 2232. With this arrangement, the protective roof 223 can be raised, for example, by 800mm, by installing the lift cylinders 2233 in the columns 2232 installed on both sides of the ceiling 2231, so as to support the upper surface of the drift during the rock drilling operation, thereby providing a stable platform for the rock drilling operation.

In the above solution, the platform module 2 has a protective ceiling 223 structure, and the ceiling can abut against the top surface of the roadway after being lifted, so as to form a fixed supporting structure. The rotatory yaw hydro-cylinder support 23 of front end possesses 2 degrees of freedom, can be used for installing other work arms, accomplishes different operation functions, and function expansibility is strong.

In addition, as shown in fig. 4, a tool box 24 and the like may be provided on the platform module 2.

As shown in fig. 5, the operation module 3 is mainly used for operating the hydraulic system and the electric control system of the drill jumbo to control the jumbo to perform the drilling operation. The operating module 3 may include a mounting bracket 30, a hydraulic control valve block 31, an electric control switch 32, a meter 33, and the like. The control valve group 114 can be composed of a reversing valve, a pressure control valve, a handle and the like and is positioned at the front end of the operating platform; the electric control switch 32 is provided with an indicator light and is used for observing the running state of the electric system; the gauge 33 may consist of a flow meter, a pressure gauge, a water pressure gauge, etc. for observing the operating state of the working device in rock drilling.

The operation module 5 is the major structure of drilling operation, and it carries on the responsible drilling blast hole such as rock drill and propeller, and the accessible simple tool is installed on the rotatory swing support of platform module 2 front end, as shown in fig. 7.

Specifically, in some exemplary embodiments, as shown in fig. 7, the job module 5 includes: the system comprises a luffing cylinder translational system 51, a drill boom support 52, a drill boom 53, a bracket 54, a propeller 60, a compensation cylinder 61, a drill rod 62, a rock drill 63 and an oil pipe guide wheel 64, wherein a mounting flange is arranged on the drill boom support 52 and is used for being detachably connected with the platform module 2; the front end of the drill boom 53 is hinged with the drill boom support 52 through a first pin shaft 55, and the tail end of the drill boom 53 is connected with the bracket 54 through a second pin shaft 56; the luffing cylinder translation system 51 comprises a first luffing cylinder H1, a second luffing cylinder H2, a hydraulic pipeline connected with the first luffing cylinder H1 and the second luffing cylinder H2, and a control valve arranged on the hydraulic pipeline, wherein a rod-containing cavity of the first luffing cylinder H1 is communicated with a rod-containing cavity of the second luffing cylinder H2, one end of the first luffing cylinder H1 is hinged with the drill boom support 52 through a third pin 511, the other end of the first luffing cylinder H1 is hinged with a first position in the middle of the drill boom 53 through a fourth pin 512, one end of the second luffing cylinder H2 is hinged with the lower part of the bracket 54 through a fifth pin 513, and the other end of the second luffing cylinder H2 is hinged with a second position in the middle of the drill boom 53 through a sixth pin 514; the compensation oil cylinder 61 is arranged on the bracket, and the compensation oil cylinder 61 is connected with the propeller 60 and used for adjusting the extension amount of the propeller 60 so as to compensate the clearance between the drill bit and the tunnel face (as shown by a distance D in fig. 8) caused by the lifting of the drill boom 53; the pusher 60 includes two channel beams, leg wide portions of which are symmetrically arranged outward such that the leg wide portions of the two channel beams form a rail sliding plane; the rock drilling machine 63 is supported on the bracket and is connected with the propeller 60, and a guide rail of the rock drilling machine 63 is slidably arranged on the sliding plane and is used for completing the propelling action.

The drilling and blasting construction requires that the drilled blast holes are arranged in parallel so as to obtain a better roadway forming effect. If the lifting of the boom 53 is operated only by the experience of the worker, it is difficult to ensure that the pusher 60 always moves in parallel. Therefore, in the embodiment provided by the present disclosure, a luffing cylinder translation system 51 is designed in the operation module 5, so that the drill boom 53 of the rock drilling rig automatically keeps the parallel motion of the thruster 60 in the lifting and lowering processes, and the spatial parallel arrangement of the drill holes is realized.

In the related technology, the variable amplitude oil cylinder translation system 51 is generally applied to medium and large-sized drill jumpers, adopts a double-triangular four-oil cylinder arrangement scheme, has a complex structure, occupies a large space, is high in control difficulty, and is not suitable for small-section rock drilling equipment. The structure of the variable amplitude oil cylinder translation system 51 in the small-section roadway tunneling jumbo provided by the embodiment of the disclosure is different from that of a double-triangle four-oil-cylinder type variable amplitude oil cylinder translation system 51 in a medium-sized jumbo, and the variable amplitude oil cylinder translation system is only arranged in a mode of connecting double oil cylinders in series, so that the structure is simple and compact, and the control is convenient.

It should be noted that, for the design of the luffing cylinder translation system 51, the main technical difficulty is to determine the installation position of the cylinder and determine the structural size of the cylinder. In the design of the luffing cylinder translation system 51 in the related art, a parameter trial and error method is adopted according to experience for the two points, and parameters meeting requirements are obtained by repeatedly adjusting the installation position of the cylinder and calculating the structural size. The method has the defects of complex calculation process and unstable design error.

In order to solve the above problems, the luffing cylinder translation system 51 provided in the embodiment of the present disclosure is applicable to a luffing cylinder translation system 51 with a small cross section, and provides a calculation process of a cylinder installation position and a cylinder structure size and a matched hydraulic pipeline connection diagram, and the design can be rapidly completed through the following steps (i) to (ii).

Specifically, as shown in the figure, the working principle of the luffing cylinder translation system 51 is as follows:

the luffing cylinder translation system 51 comprises a first luffing cylinder H1, a second luffing cylinder H2, a hydraulic pipeline connected with the first luffing cylinder H1 and the second luffing cylinder H2, and a control valve arranged on the hydraulic pipeline, wherein the control valve comprises a reversing valve, a balance valve and the like. When the drill boom 53 is lifted up by the first luffing cylinder H1, the drill boom 53 rotates counterclockwise by an angle Δ θ around a point a, the side BC where the first luffing cylinder H1 is located is extended by the drill boom 53 in the rotation process, oil in the rodless chamber is squeezed into the rodless chamber of the second luffing cylinder H2, the side B 'C' where the second luffing cylinder H2 is located is shortened, the bracket 54 and the propeller 60 are driven to rotate clockwise by the angle Δ θ 'around the point a relative to the drill boom 53, and the position of the hinge point of the cylinder, the inner diameter of the cylinder barrel and the diameter of the piston rod are reasonably designed, so that Δ θ' = Δ θ in the action process, and the bracket 54 and the propeller 60 are kept parallel at the two positions.

Because the available operating space of the small-section roadway tunneling and rock drilling jumbo is smaller, aiming at the characteristic, a public works creatively, and designs the translation system 51 of the luffing cylinder according to the translation principle. In the above scheme, the operation module 5 has an automatic translation system of a luffing cylinder, that is, under the condition of no other auxiliary device, the automatic translation effect of the thruster 60 during the lifting and lowering processes of the drill boom 53 can be obtained only by connecting the rod chambers of the first luffing cylinder H1 and the second luffing cylinder H2 in series, and reasonably designing the installation positions of the first luffing cylinder H1 and the second luffing cylinder H2, the structural size of the cylinders, the connection mode of the hydraulic pipeline, and the like.

In addition, the following concrete design method for the installation position of the automatic translation system of the variable amplitude oil cylinder, the structural size of the oil cylinder and the connection mode of the hydraulic pipeline is also provided:

firstly, the stress state of the second luffing cylinder H2 is determined according to the mass of the bracket 54 and the propeller 60, and as shown in fig. 7 to 8, according to a general design formula of the stress state provided by a mechanical design manual, two side lengths of the installation position of the second luffing cylinder H2 are determined as follows: c '= a' B ', B' = a 'C', which is a general design operation and has no difficulty for engineers;

secondly, according to the overall mass of the drill boom 53, determining the sizes of two edges of the mounting position of the luffing cylinder H1 according to the following formula (I): c = AB, b = AC, and the similarity coefficient k.

In the formula, b is the length of two points A and C;

c is the length of the two points A and B;

b ' is the length of two points A ' and C ';

c ' is the length of two points A ' and B ';

k is a similarity coefficient.

Thirdly, the symmetric center of the amplitude angle of the drill boom 53 in the rotation process is determined according to the following formula (II)

：

Amplitude variation angle

Is arranged at

The two sides of the corner center are used for obtaining better translation effect.

Determining the stress state of the second luffing cylinder H2 according to the mass of the bracket 54 and the propeller 60, and determining the cylinder bore diameter of the second luffing cylinder H2 according to a general design formula provided by a mechanical design manual and a standard size sequence of hydraulic cylinders

And diameter of piston rod

This is not difficult for the average engineer.

Determining the inner diameter of the cylinder barrel of the first amplitude variation oil cylinder H1

And diameter of piston rod

. The relationship between the cylinder barrel inner diameter and the piston rod diameter of the two variable amplitude oil cylinders has an equation relationship shown in the formula (III):

in the formula:

the inner diameter of the cylinder barrel of the first luffing cylinder H1;

the diameter of the piston rod of the first luffing cylinder H1;

the inner diameter of the cylinder barrel of the second luffing cylinder H2;

the diameter of the piston rod of the second luffing cylinder H2.

The drill boom 53 provided in the embodiment of the present disclosure is a small-sized drill boom 53, and the stress states of the first luffing cylinder H1 and the second luffing cylinder H2 are not much different, so that the first luffing cylinder H1 and the second luffing cylinder H2 can be selected

Thus, the diameter of the piston rod of the second luffing cylinder H2

According to the following formula

Determining:

so far, the installation positions of the two luffing cylinders and relevant parameters of the structure size are all determined.

Illustratively, the cylinder bore diameter/piston rod diameter of the first luffing cylinder H1 designed according to the method is 80mm/45mm, the AB side length is 220mm, the AC side length is 900mm, the cylinder bore diameter of the second luffing cylinder H2 is 80 m/40 m, the A 'B' side length is 200mm, and the A 'C' side length is 818 mm.

Sixthly, for automatic translation and single-action in the operation of the luffing cylinder translation system 51, the structure of the hydraulic pipeline of the luffing cylinder translation system 51 according to the embodiment of the present disclosure may be as shown in fig. 7, and the hydraulic pipeline may include a first directional valve 517, a second directional valve 515, two balance valves 516, a pipeline, and the like. The first reversing valve 517 is a hydraulic translation reversing valve, and the drill boom 53 can translate through the operation of the first reversing valve 517; the second direction valve 515 is a hydraulic single-action direction valve. Switchable to a non-parallel single-acting state by operation of the second reversing valve 515.

The specific principle is as follows:

referring to fig. 7 and 8, when the handle of the first direction changing valve 517 is operated to push to the right position of the valve core working position, the high-pressure oil enters the rodless cavity of the first luffing cylinder H1, and pushes the piston rod to extend, so that the drill boom 53 rotates counterclockwise around the point a, and the drill boom 53 is lifted. At the moment, the hydraulic oil in the rod cavity of the first luffing cylinder H1 is extruded into the rod cavity of the second luffing cylinder H2, the piston rod contracts to drive the bracket 54 to rotate clockwise around the point A', and the propeller 60 is pressed downwards. With the above design parameters provided by the embodiments of the present disclosure, the counterclockwise rotation angle of the drill boom 53 and the clockwise rotation angle of the bracket 54 can be approximately offset to ensure the parallel action of the pusher 60. In contrast to the above situation, in the operating condition in which the handle for operating the first direction valve 517 is pushed to the left of the valve core operating position, the drill boom 53 descends clockwise around the point a, and the bracket 54 rotates counterclockwise around the point a', and the two are still approximately offset.

When the drilling arm 53 does not need to translate in work, the second reversing valve 515 is independently operated to be pushed to the right of the valve core working position, high-pressure oil enters a rodless cavity of the luffing cylinder H2 to push a piston rod to extend, the bracket 54 rotates clockwise around the point A', at the moment, the first luffing cylinder H1 does not take oil, the drilling arm 53 keeps still, and the propeller 60 presses downwards. The operation of the second switching valve 515 to push to the left of the valve core operating position is opposite to the above-described operation, and the bracket 54 moves counterclockwise around the point a', and the pusher 60 is lifted.

The two balance valves 516 are used for keeping the drill boom 53 to move smoothly, and the back pressure maintaining function of the balance valves 516 is utilized to avoid shaking during frequent lifting-maintaining-descending cycles of the drill boom 53.

The small-section roadway tunneling and rock drilling trolley provided by the embodiment of the disclosure adopts the double-variable-amplitude oil cylinder translation system 51, has a simple and compact structure, requires little operation space, has a good hole forming parallel effect, reduces the operation difficulty and labor intensity of workers, and improves the hole forming quality.

The electro-hydraulic quick connection module 4 is mainly used for communicating a hydraulic oil circuit, a cable line and the like. In some embodiments, an electro-hydraulic quick-connection module 4 is disposed at each of the front end and the rear end of the platform module 2, and is used for respectively communicating electro-hydraulic lines between a drilling boom 53 and the platform module 2, and between the driving module 1 and the platform module 2, as shown in fig. 4.

In some exemplary embodiments, as shown in fig. 6, the electro-hydraulic quick-connect module 4 may include a combined mounting plate 41, a plurality of hydraulic quick-connect couplings 42, and a plurality of electrical quick-connect couplings 43, where the plurality of hydraulic quick-connect couplings 42 and the plurality of electrical quick-connect couplings 43 are disposed on the combined mounting plate 41, one end of each of the plurality of hydraulic quick-connect couplings 42 is connected to an upstream pipeline 421, the other end is connected to a downstream pipeline 422, and quick connection and disconnection of the pipelines can be achieved between the upstream pipeline 421 and the downstream pipeline 422 through plugging and unplugging the hydraulic quick-connect couplings; one end of each connector in the multi-path electrical quick connector 43 is connected with an upstream line 431, the other end of each connector is connected with a downstream line 432, and the upstream line 431 and the downstream line 432 can be connected and disconnected quickly through the plugging electrical quick connector 43.

As shown in fig. 6, the hydraulic quick coupling 42 includes a hydraulic quick female coupling 423 and a hydraulic quick male coupling 424, the hydraulic quick female coupling 423 is connected to the upstream line 421, the hydraulic quick male coupling 424 is connected to the downstream line 422, the electric quick coupling 43 includes an electric male plug 433 and an electric female plug 434, the electric male plug 433 is connected to the upstream line 431, and the electric female plug 434 is connected to the downstream line 432.

It should be noted that the end surface of the hydraulic quick coupling 42 is flush and is a self-locking sealing type quick coupling. Therefore, the hydraulic pipeline has a self-sealing function after being disconnected, and hydraulic oil in the pipeline cannot leak out.

The hydraulic quick connector is used for connecting and disconnecting a hydraulic power pipeline, for example, the hydraulic quick connector can select the related technology of an automatic butt joint hydraulic valve core, a hydraulic quick-change device and rescue equipment (ZL 201911140934.4) in an authorized patent, meets the ISO16028 standard, has the functions of preventing pollution and leakage, and can solve the problem of hydraulic power butt joint. The electric quick connector 43 is used for connecting and disconnecting strong and weak electric lines between different modules. The combination mounting plate 41 is used to combine a plurality of the hydraulic quick connectors and the electrical quick connectors 43, with mounting holes for mounting arrangements on other modules.

It should be noted that the modular splitting technology and the electro-hydraulic quick connection method provided in the embodiments of the present disclosure are not limited to be applied to the small-section roadway driving and rock drilling trolley, and may also be applied to other fields, such as engineering machinery, rescue vehicles, military equipment, and the like, to implement the versatility of the working arm and the modular operation capability of the operation device.

In addition, the small-section roadway tunneling and rock drilling trolley provided by the embodiment of the disclosure can be provided with a 15kW hydraulic rock drill 63, the rock hardness can be under the condition of f = 11, the footage speed can be 1.2m/min, which is equivalent to 2 times of that of a pneumatic rock drill, and the operation efficiency is obviously high. Because the hydraulic rock drill 63 does not need oil-gas lubrication, the working environment of workers is greatly improved, and the working safety is improved.

In addition, it should be noted that the frames of the driving module 1, the platform module 2 and the operation module 5 can be connected together mainly by channel steel, square steel and rectangular steel by welding or fastening by standard parts, and the driving module has a simple structure, low cost and convenient maintenance.

The operation process of the small-section roadway tunneling drill jumbo provided by the embodiment of the disclosure is described in detail as follows:

according to the mining operation flow of rare metal mines such as gold mine, tungsten-molybdenum mine and the like, after the previous mine removal is completed, a laying track in a roadway extends to the front of a tunnel face, and meanwhile, a high-voltage cable is erected at a proper position, a water supply pipeline, a ventilation system and the like are installed, so that preparation is made for the next drilling and blasting construction.

In the operation starting process of the small-section roadway tunneling and rock drilling trolley (hereinafter referred to as a rock drilling trolley), the cable of the driving module 1 is firstly connected, the control valve group 114 on the right side of the driving module 1 is operated, the hydraulic pipeline of the hydraulic motor 112 arranged at the position of the driving chassis 11 is opened, and the hydraulic motor 112 drives the rail wheel to rotate through the speed reducer 113, so that the trolley is gradually pushed to integrally advance forwards on the rail. In a walking state, the height of the whole vehicle is 1550mm, the width of the whole vehicle is 1140mm, the length of the whole vehicle is less than or equal to 7500mm, the maximum running speed is 2.4km/h, and the minimum turning diameter is 8000 mm.

For narrow, irregular and large-corner roadways, the traditional drill jumbo has the difficult problem of difficult access, and the small-section roadway tunneling drill jumbo provided by the embodiment of the disclosure can be detached and transported independently through a plurality of functional modules. The driving module 1 is heavy and can be manually operated to automatically advance after being connected with a power cable; the platform module 2 is not provided with a driving device, has the weight of less than 750kg and can be pushed to advance by 2 to 3 workers; the weight of the operation module 3 is less than 75kg, and the operation module can be carried independently; the weight of the operation module 5 is less than 285kg, the two luffing cylinders can be retracted, the drill boom 53 is folded, and the drill boom is placed in the driving module 1 for transferring. The electro-hydraulic quick connection module 4 is small in size and used for quickly connecting a hydraulic oil circuit and a cable line. Each module height is less than or equal to 1550mm, and each module width is less than or equal to 1140mm, and the minimum section that can pass after disassembling is 1550mm X1140 mm, and the minimum tunnel section that whole car can get into is 2200mm X2000 mm, has improved the suitability in small cross section tunnel greatly.

For the condition of carrying after disassembly, after the modules of the drill jumbo reach the position near the working face, the modules can be quickly assembled together through the following steps:

firstly, inserting a pin shaft into a mounting hole of a first dismounting structure 115 on the driving module 1 and a mounting hole of a fifth dismounting structure on the platform module 2, and fixing, wherein as shown in fig. 9 (a), the maximum relative pivot angle between the two modules is +/-20 degrees;

then, the operation module 3 is placed at a corresponding mounting position on the right side of the front portion of the platform module 2, and is fixed by bolts, as shown in fig. 9 (b), the operation module is fixed by screws and is flush with the right edge of the chassis of the wheel-rail plate car, and the distance between the left side of the operation module 3 and the protective coaming 221 is 400mm, so that an operator can get in and out of the cab 22;

then, connecting the oil path and cable of the driving module 1 to the corresponding joint of the electro-hydraulic quick connection module 4, and connecting the upstream and downstream pipelines 422 and the circuit, i.e. connecting the electric and hydraulic parts, as shown in fig. 9 (c);

then, the working module 5 is mounted on the bracket flange of the yaw cylinder 232 at the front end of the platform module 2 and fixed by screws, as shown in fig. 9 (d).

After field assembly is completed, an operator enters a driving position, the hydraulic multi-way valve handle is operated to drive the whole trolley to enter an operation position in front of an operation palm surface through the hydraulic motor 112 of the driving module 1, and after the hydraulic multi-way valve handle is in place, an oil way of the hydraulic motor 112 is locked, so that the trolley is prevented from retreating during operation, and the parking brake function is realized. Meanwhile, the driving module 1 has heavier mass and can play a role of counterweight, so that the situation that the front probe 'point head' appears on the whole vehicle after the drill boom 53 extends forwards is prevented. Then, job preparation is started:

step S01, lifting the protective ceiling 223 to abut against the upper top surface of the roadway, so that the rail wheels are stably pressed on the wheel rails, and further fixing the whole operation platform;

step S02, controlling the action of the rotary yaw cylinder 232 through the multi-way valve of the operation module 3, and adjusting the front end of the drill boom 53 to a preset drilling direction;

step S03, operating the hydraulic handle, controlling the amplitude-variable oil cylinder translation system 51 to lift the drill boom 53, and enabling the front end of the propeller 60 to reach a preset drilling position;

step S04, operating the hydraulic handle, controlling the compensation oil cylinder 61 to act, so that the propeller 60 extends forwards to prop against the surface of the rock, and providing a rock entering fulcrum for drilling of the rock drill 63;

step S05, operating a hydraulic handle, starting the hydraulic rock drill 63 and starting drilling a blast hole;

and step S06, after the first blast hole is finished, drilling to other hole sites by adjusting the rotary yaw oil cylinder 232, the first luffing oil cylinder H1, the second luffing oil cylinder H2 and the compensation oil cylinder 61, and repeating the steps S03 to S06 to drill other blast holes.

The total output power of the drill jumbo can be 22kW, the maximum working area is 2500mm × 2500mm, the maximum drilling depth is 2000mm, as shown in fig. 10, in the drawing, M is the small-section gallery excavation drill jumbo provided by the embodiment of the disclosure, and N is a small-section gallery schematic diagram.

And after the blast hole drilling of one tunnel face is finished, the protective ceiling 223 is recovered, and the rock drilling jumbo is driven to retreat away from the tunnel face. After the blasting ore removal of one round is finished, the drilling operation of a new tunnel face can be started according to the operation steps.

The rock drill 63 suitable for the small-section roadway tunneling rock drilling trolley provided by the embodiment of the disclosure has the power of 15kW, and under the condition that the rock hardness coefficient f = 11, the footage speed of 1.2m/min can be realized, the time for drilling a blast hole is less than 2min, and the small-section roadway tunneling rock drilling trolley is high in efficiency, good in safety protection and small in environmental pollution compared with manual pneumatic rock drilling. Can provide a solution for mining rare metal mines with narrow and irregular 'chicken nest-shaped' vein characteristics such as gold mine, tungsten-molybdenum mine and the like.

The present disclosure covers any alternatives, modifications, equivalents, and alternatives made over the spirit and scope of the present disclosure. In the following description of the preferred embodiments of the present disclosure, specific details are set forth in order to provide a thorough understanding of the present disclosure, and it will be apparent to those skilled in the art that the present disclosure may be practiced without these specific details. In other instances, well-known methods, procedures, flows, components, circuits, and the like have not been described in detail as not to unnecessarily obscure aspects of the present disclosure.

Those skilled in the art will appreciate that all or part of the steps in the method for implementing the above embodiments may be implemented by relevant hardware instructed by a program, and the program may be stored in a computer readable storage medium, such as: ROM/RAM, magnetic disk, optical disk, etc.

The foregoing is merely a preferred embodiment of the present disclosure, and it should be noted that modifications and embellishments could be made by those skilled in the art without departing from the principle of the present disclosure, and these should also be considered as the protection scope of the present disclosure.

Claims

1. The utility model provides a small-section gallery tunnelling drill jumbo which characterized in that, includes a plurality of functional module, a plurality of functional module include drive module, platform module, operating module, electricity liquid connect module and operation module soon, wherein can disassemble between a plurality of functional module for mutually independent module, perhaps assemble into a whole equipment.

2. The small-face roadway heading and rock-drilling trolley according to claim 1, wherein each of the plurality of functional modules has a height of 1550mm or less and a width of 1140mm or less.

3. The small face roadway driving rock drilling jumbo of claim 1, wherein each module of the plurality of functional modules is disassembled or assembled through a pin or a standard fastener.

4. The small face roadway excavation rock drilling rig of claim 1, wherein the drive module includes:

the driving chassis is used for realizing the vehicle traveling function and comprises a rail wheel plate vehicle, a hydraulic motor, a speed reducer and a control valve group, wherein the speed reducer is connected to the hydraulic motor, the speed reducer and the control valve group are matched to drive the rail wheel plate vehicle to travel, and a first dismounting structure capable of being dismounted or assembled with the platform module is arranged at the front end of the rail wheel plate vehicle;

5. The small face roadway excavation rock drilling rig of claim 1, wherein the platform module includes:

a rail-wheel chassis;

the cab is arranged on the rail wheel chassis and comprises a protective enclosing plate, a seat arranged in a cavity enclosed by the protective enclosing plate, a protective ceiling capable of lifting and a lighting device arranged on the protective ceiling;

the rotating yaw oil cylinder support is arranged on the rail wheel chassis and is positioned at the front end of the rail wheel chassis; and the mounting structure is used for fixing other functional modules and comprises a second dismounting structure, a third dismounting structure, a fourth dismounting structure and a fifth dismounting structure, wherein the front end of the platform module is connected with the operation module through the second dismounting structure in a detachable manner, the middle part of the platform module is connected with the operation module through the third dismounting structure in a detachable manner, the front end and the rear end of the platform module are connected with the electro-hydraulic quick connection module through the fourth dismounting structure in a detachable manner, and the rear end of the platform module is connected with the driving module in a detachable manner through the fifth dismounting structure.

6. The small-bore heading rock-drilling jumbo as claimed in claim 5, wherein the rotary yaw cylinder support has 2-directional degrees of freedom to swing around a Z axis perpendicular to the rail wheel chassis and rotate around an X axis parallel to the rail wheel chassis, and the rotary yaw cylinder support has a mounting flange thereon, and the mounting flange is provided with a threaded hole for connecting a mounting mechanical arm.

7. The small face roadway excavation rock drilling rig of claim 5, wherein the protective roof includes: the device comprises a shed roof and upright columns which are arranged between the shed roof and the rail wheel chassis and are positioned on two opposite sides of the shed roof, wherein lifting oil cylinders are arranged in the upright columns.

8. The small-face roadway driving rock-drilling jumbo of claim 1, wherein the operation module comprises: a variable amplitude oil cylinder translation system, a drill boom support, a drill boom, a bracket, a propeller, a compensation oil cylinder, a drill rod, a rock drill and an oil pipe guide wheel, wherein,

the drill boom support is provided with a mounting flange which is used for being detachably connected with the platform module;

the translational system of the amplitude-variable oil cylinder comprises a first amplitude-variable oil cylinder H1, a second amplitude-variable oil cylinder H2, a hydraulic pipeline connected with the first amplitude-variable oil cylinder H1 and the second amplitude-variable oil cylinder H2, and a control valve arranged on the hydraulic pipeline, wherein a rod cavity of the first amplitude-variable oil cylinder H1 is communicated with a rod cavity of the second amplitude-variable oil cylinder H2, one end of the first amplitude-variable oil cylinder H1 is hinged with the drill boom support through a third pin shaft, the other end of the first amplitude-variable oil cylinder H1 is hinged to a first position in the middle of the drill boom through a fourth pin shaft, one end of the second amplitude-variable oil cylinder H2 is hinged to the lower part of the bracket through a fifth pin shaft, and the other end of the second amplitude-variable oil cylinder H2 is hinged to a second position in the middle of the drill boom through a sixth pin shaft;

the thruster comprises two channel steels, and the leg wide parts of the two channel steels are outwards and symmetrically arranged, so that the leg wide parts of the two channel steels form a guide rail sliding plane;

when a handle of the first reversing valve is pushed to the right of a working position of a valve core, high-pressure oil enters a rodless cavity of the first variable-amplitude oil cylinder H1 to push a piston rod of the first variable-amplitude oil cylinder H1 to extend out, so that the drill boom rotates anticlockwise around the first pin shaft to lift the drill boom, hydraulic oil in a rod cavity of the first variable-amplitude oil cylinder H1 is extruded into a rod cavity of the second variable-amplitude oil cylinder H2, and a piston rod of the second variable-amplitude oil cylinder H2 contracts to drive a bracket to rotate clockwise around the second pin shaft so as to press the propeller; when the second reversing valve is pushed to the right position of the working position of the valve core, high-pressure oil enters a rodless cavity of the second variable-amplitude oil cylinder H2 and pushes a piston rod of the second variable-amplitude oil cylinder H2 to extend out, so that the bracket rotates clockwise around the second pin shaft, the first variable-amplitude oil cylinder H1 does not take oil, the drill boom keeps still, and the propeller presses downwards; when the second reversing valve is pushed to the left position of the working position of the valve core, the bracket moves anticlockwise around the second pin shaft, and the propeller is lifted upwards.

9. A small face level heading rock-drilling rig as claimed in claim 8,

the relationship between the cylinder bore diameters and the piston rod diameters of the first luffing cylinder H1 and the second luffing cylinder H2 has an equation relationship as shown in the following formula (III):

in the formula (I), the compound is shown in the specification,

the inner diameter of the cylinder barrel of the first luffing cylinder H1;

the diameter of the piston rod of the first luffing cylinder H1;

the inner diameter of the cylinder barrel of the second luffing cylinder H2;

the diameter of the piston rod of the second luffing cylinder H2;

the diameter of a piston rod of the second luffing cylinder H2

According to the following formula

Determining:

。

10. the small-section roadway heading rock drilling trolley according to claim 1, wherein the electro-hydraulic quick-connection module comprises a combined mounting plate, a plurality of paths of hydraulic quick-connection joints and a plurality of paths of electric quick-connection joints, the plurality of paths of hydraulic quick-connection joints and the plurality of paths of electric quick-connection joints are arranged on the combined mounting plate, one end of each path of joint in the plurality of paths of hydraulic quick-connection joints is connected with an upstream pipeline, the other end of each path of joint is connected with a downstream pipeline, and the upstream pipeline and the downstream pipeline can be quickly connected and disconnected through plugging and unplugging the hydraulic quick-connection joints; one end of each joint in the multi-path electric quick joint is connected with an upstream line, the other end of each joint is connected with a downstream line, the upstream line and the downstream line can be quickly connected and disconnected through plugging the electric quick joint, and the hydraulic quick joint is level in end face and is a self-locking sealing type quick joint.