Dust removal device for a roadway tunneling equipment

Abstract

The present invention relates to the technical field of tunnel boring dust removal, and particularly relates to a dust removal device for a roadway boring equipment, which includes a propulsion connecting rod, a conical head, a cutting head, a mounting table, a stabilizing collar, a guiding component, a spraying component, etc.; one end of the propulsion connecting rod is fixedly connected to the conical head, the cutting head is arranged on the conical head, the mounting table is arranged on the propulsion connecting rod, the stabilizing collar is fixedly connected to the mounting table, the stabilizing collar is sleeved on the propulsion connecting rod, the guiding component is arranged on the stabilizing collar, and the spraying component is arranged on the guiding component. The present invention uses a guiding component arranged on the stabilizing collar to guide the slurry formed by the mixture of dust, soil and water by the spraying component, so that these slurries will not flow along the propulsion connecting rod and adhere to it, avoiding the adhesion and infiltration of the slurry into the equipment interior and causing damage.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel boring dust removal, and particularly to a dust removal device for a roadway boring equipment. Background Art

[0002] The tunneling machinery industry has become a key supported and developed industry in the domestic high-end equipment manufacturing industry and emerging industries. Existing roadheaders generally have various forms of dust prevention and suppression structures. The common dust prevention and suppression methods mainly involve adding spray nozzles at the cutting mechanism of the roadheader to achieve the effect of dust prevention and suppression.

[0003] The cutting mechanism is a very important part of the roadheader. It is located at the forefront of the roadheader and is required to complete cutting and coal breaking. Due to the large wear caused by its frequent friction with geological strata, it is necessary to regularly inspect and determine whether it can continue to work. After the spray nozzles installed on the cutting mechanism spray water columns at an angle, a large amount of mud formed by the mixture of water flow and soil will adhere to the robotic arm of the cutting mechanism, causing great trouble to the maintenance work. It is necessary to clean the adhered mud before maintenance. At the same time, if there are leakage holes in the equipment structure, it is extremely easy for the mud to enter the equipment interior along the leakage holes, causing damage to the internal components of the equipment. Summary of the Invention

[0004] In order to overcome the disadvantages that existing roadheaders are prone to mud adhesion and penetration into the equipment interior during the process of using spray nozzles for dust suppression and prevention on the cutting mechanism, the object of the present invention is to provide a dust removal device for a roadway boring equipment that can guide the mud generated by spraying.

[0005] A dust removal device for a roadway boring equipment includes a propulsion connecting rod, a conical head, a cutting head, a mounting table, a stabilizing collar, a guiding component, and a spraying component. One end of the propulsion connecting rod is fixedly connected to the conical head, the cutting head is arranged on the conical head, the mounting table is arranged on the propulsion connecting rod, the stabilizing collar is fixedly connected to the mounting table, the stabilizing collar is sleeved on the propulsion connecting rod, the guiding component is arranged on the stabilizing collar, and the spraying component is arranged on the guiding component.

[0006] More preferably, the guiding component includes a connecting block, a mounting collar, a vortex fan, and an outer sleeve. The connecting block is installed on the propulsion connecting rod, the mounting collar is fixedly connected to the stabilizing collar, the propulsion connecting rod passes through the mounting collar, the vortex fan is rotatably connected to the mounting collar, the vortex fan is fixedly connected to the connecting block, the outer sleeve is fixedly connected to the stabilizing collar, and the vortex fan is placed inside the outer sleeve.

[0007] More preferably, the spraying component includes a water inlet joint, an annular inclined plate, and elbow nozzles. The water inlet joint is installed on the outer sleeve, the annular inclined plate is fixedly connected to one side of the outer sleeve, the elbow nozzles are evenly distributed along the inclined surface of the annular inclined plate, and the elbow nozzles are all connected to the water inlet joint.

[0008] More preferably, it further includes a first nozzle. The first nozzle is fixedly connected to the outer sleeve, and the nozzle of the first nozzle faces the inside of the outer sleeve.

[0009] More preferably, it further includes an adjustment assembly, and the adjustment assembly is arranged inside the elbow nozzle; the adjustment assembly includes an electric push rod, a pull rod, a connecting frame, a first fixing block, a pull rope, a second fixing block, a first spring, a pulling connecting rod and a spherical nozzle. The electric push rod is installed inside the water inlet joint, the movable rod of the electric push rod is fixedly connected to the pull rod, the connecting frame is fixedly connected to the pull rod, the first fixing block and the second fixing block are respectively fixedly connected inside the elbow nozzle, the connecting frame is fixedly connected to the pull ropes with the same number as the elbow nozzles, the pull ropes pass through the first fixing block and the second fixing block, the pulling connecting rod is fixedly connected to the end of the pull rope, a first spring is arranged between the pull rope and the pulling connecting rod, the spherical nozzle is slidably connected to the nozzle of the elbow nozzle, and the pulling connecting rod is hinged to the spherical nozzle.

[0010] More preferably, it further includes an oil injection assembly, and the oil injection assembly is arranged on the propulsion connecting rod; the oil injection assembly includes an oil storage ring, an annular plate, a conical nozzle, a conduit, a magnetic plate, a push tube, an inner sleeve and an inclined baffle. The oil storage ring is slidably penetrated through the propulsion connecting rod, the annular plate is fixedly connected to the conical head, the conduit is fixedly connected to the annular plate, the conical nozzle is fixedly connected to the annular plate and is connected to the conduit, the magnetic plate is fixedly connected to the installation collar and is in adsorption contact with the oil storage ring, the oil inlet pipelines are uniformly arranged inside the conical head, the push tube is slidably penetrated through the oil storage ring, one end of the push tube is fixedly connected to the annular plate and is connected to the oil inlet pipelines, the inner sleeve is fixedly connected inside the oil storage ring, the push tube can be slidably inserted into the inner sleeve, the conduit is connected to the push tube, and the inclined baffle is fixedly connected to the connection part of the conduit and the push tube.

[0011] More preferably, it further includes a rubber collar, and the rubber collar is sleeved on the push tube and is in sliding contact with the inner sleeve.

[0012] More preferably, it further includes an inclined push plate, an installation pipe, a stop block and a second spring. The inclined push plate is fixedly connected inside the inner sleeve and slidably penetrates into the push tube. The installation pipe is fixedly connected inside the oil inlet pipeline, the stop block is slidably connected inside the installation pipe, a second spring is arranged between the stop block and the installation pipe, and the stop block is in sliding contact with the inclined push plate. Beneficial effects

[0013] 1. The present invention adopts a guiding assembly arranged on the stabilizing collar to guide the slurry formed by the mixture of dust, soil and water by the spraying assembly, so that the slurry will not flow along the propulsion connecting rod and adhere to it, avoiding the adhesion and infiltration of the slurry into the equipment interior and causing damage;

[0014] 2. The adjustment component provided in the elbow nozzle of the present invention can adjust the water flow direction ejected from the elbow nozzle through the spherical nozzle, enabling the ejected water flow direction to be adjusted according to requirements and making the water spraying angle of the elbow nozzle more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structure schematic diagram of the present invention.

[0016] Figure 2 It is a partial three-dimensional structure schematic diagram of the present invention.

[0017] Figure 3 It is a three-dimensional structure schematic diagram of the guiding component of the present invention.

[0018] Figure 4 For the present invention Figure 3 A three-dimensional structure schematic diagram from another perspective.

[0019] Figure 5 It is a three-dimensional structure schematic diagram of the spraying component of the present invention.

[0020] Figure 6 It is a three-dimensional structure schematic diagram of the adjustment component of the present invention.

[0021] Figure 7 For the present invention Figure 6 An enlarged three-dimensional structure schematic diagram of part A.

[0022] Figure 8 It is a three-dimensional structure schematic diagram of the oil injection component of the present invention.

[0023] Figure 9 For the present invention Figure 8 A three-dimensional structure schematic diagram after the conical head is sectioned.

[0024] Figure 10 It is a three-dimensional structure schematic diagram of the present invention.

[0025] Among them, the above-mentioned drawings include the following reference numerals: 1, propulsion connecting rod; 101, conical head; 102, cutting head; 103, oil inlet pipeline; 2, mounting table; 3, stabilizing collar; 4, guiding assembly; 41, connecting block; 42, mounting collar; 43, turbofan; 44, outer sleeve; 46, first spray head; 5, spraying assembly; 51, water inlet joint; 52, annular inclined plate; 53, elbow nozzle; 61, electric push rod; 62, pull rod; 63, connecting frame; 64, first fixing block; 65, pull rope; 66, second fixing block; 67, first spring; 68, pulling connecting rod; 69, spherical nozzle; 7, oil injection assembly; 71, oil storage ring; 72, annular plate; 73, conical nozzle; 74, conduit; 75, magnetic plate; 76, push tube; 77, inner sleeve; 78, rubber collar; 79, inclined baffle; 81, inclined push plate; 82, mounting tube; 83, stop block; 84, second spring. Detailed implementation mode

[0026] The present invention will be further described in detail below in conjunction with the drawings and specific implementation modes, but the protection scope and application scope of the present invention are not limited.

[0027] Embodiment 1: A dust removal device for a roadway tunneling device, as Figure 1 and Figure 2 shown, includes a propulsion connecting rod 1, a conical head 101, a cutting head 102, a mounting table 2, a stabilizing collar 3, a guiding assembly 4 and a spraying assembly 5. One end of the propulsion connecting rod 1 is fixedly connected to the conical head 101, and the cutting head 102 is arranged on the conical head 101. As the propulsion connecting rod 1 rotates, the conical head 101 can drive the cutting head 102 to complete the crushing work on the soil and rock layers. The mounting table 2 is arranged on the propulsion connecting rod 1. When the device is in use, it needs to be connected to the cutting arm of the tunneling machine through the mounting table 2. The stabilizing collar 3 is fixed on the mounting table 2 by bolts, and the stabilizing collar 3 is sleeved on the propulsion connecting rod 1. The guiding assembly 4 for guiding the direction of the slurry is arranged on the stabilizing collar 3, and the spraying assembly 5 for suppressing and reducing the dust generated by cutting the rock and soil is arranged on the guiding assembly 4.

[0028] As Figure 3 and Figure 4As shown, the guiding component 4 includes a connecting block 41, an installation collar 42, a vortex fan 43, and an outer sleeve 44. The connecting block 41 is installed on the propulsion connecting rod 1, and the connecting block 41 rotates following the propulsion connecting rod 1. The installation collar 42 is fixedly installed on the stabilizing collar 3 by bolts. The propulsion connecting rod 1 passes through the installation collar 42, and the vortex fan 43 is rotatably connected to the installation collar 42. The number of fan blades of the vortex fan 43 can be selected according to the actual situation. During use, the spacing between the fan blades needs to be appropriate to avoid the situation where the vortex fan 43 gets stuck. The vortex fan 43 is fixedly connected to the connecting block 41. During the process of the connecting block 41 rotating following the propulsion connecting rod 1, it causes the vortex fan 43 to rotate accordingly, and at the same time, dust or / and mud are concentrated and sucked in. The outer sleeve 44 is fixedly connected to the stabilizing collar 3. A notch is opened at the lower part of the outer sleeve 44. The dust or / and mud sucked in by the vortex fan 43 will enter the outer sleeve 44 and be discharged along the notch at the fixed position at the lower part of the outer sleeve 44, thereby avoiding dust or / and mud from adhering to the cutting mechanism of the roadheader.

[0029] As Figure 5 shown, the spraying component 5 is composed of a water inlet joint 51, an annular inclined plate 52, and a bent nozzle 53. The water inlet joint 51 is installed on the outer sleeve 44, and the water inlet joint 51 needs to be connected to a water supply device. The annular inclined plate 52 is fixedly connected to one side of the outer sleeve 44. The bent nozzles 53 are evenly distributed along the inclined surface of the annular inclined plate 52. The nozzles of the bent nozzles 53 are in the shape of a flat fan surface, and the sprayed water flow presents a fan-shaped surface. All the bent nozzles 53 are connected to the water inlet joint 51, so that the water flow sprayed by the bent nozzles 53 evenly arranged on the annular inclined plate 52 presents a water curtain in the shape of a horn extending in a ring, and the conical head 101 is located within this horn-shaped water curtain.

[0030] As Figure 4 shown, it further includes a first nozzle 46. The first nozzle 46 is fixedly connected to the outer sleeve 44. The first nozzle 46 also needs to be connected to an external water supply device during use. The first nozzle 46 is located at the upper part of the outer sleeve 44, and the nozzle of the first nozzle 46 faces the inside of the outer sleeve 44. After the dust or / and mud are sent into the outer sleeve 44, in order to avoid accumulation inside the outer sleeve 44, the inside of the outer sleeve 44 can be flushed with water through the first nozzle 46.

[0031] As Figure 6 and Figure 7As shown in the figure, it further includes an adjustment component, and the adjustment component is arranged inside the elbow nozzle 53. It is composed of an electric push rod 61, a pull rod 62, a connecting frame 63, a first fixing block 64, a pull rope 65, a second fixing block 66, a first spring 67, a pulling link 68 and a spherical nozzle 69. The electric push rod 61 is installed inside the water inlet joint 51. The movable rod of the electric push rod 61 is fixedly connected with the pull rod 62, and the pull rod 62 is fixedly connected with the connecting frame 63. The first fixing block 64 and the second fixing block 66 are respectively fixedly connected inside the elbow nozzle 53. The connecting frame 63 is fixedly connected with pull ropes 65 having the same number as the elbow nozzles 53. The pull ropes 65 pass through the first fixing block 64 and the second fixing block 66. The pulling link 68 is fixedly connected to the end of the pull rope 65. A first spring 67 is arranged between the pull rope 65 and the pulling link 68. The first spring 67 is used to enable the pull rope 65 to pull the pulling link 68, and after losing the pulling force, the pulling link 68 can reset itself. The spherical nozzle 69 is slidably connected to the nozzle of the elbow nozzle 53. The spherical nozzle 69 replaces the water spray opening of the elbow nozzle 53 and can also make the sprayed water in a flat fan shape. The pulling link 68 is hinged to the spherical nozzle 69. However, as the electric push rod 61 pulls the connecting frame 63, the pull ropes 65 and the pulling link 68 through the pull rod 62, causing all the spherical nozzles 69 to change angles, the angle of the sprayed trumpet-shaped water curtain will also change. In this way, the sprayed water flow can be concentrated at one place.

[0032] During use, the installation platform 2 is connected to the cutting arm of the roadheader. After the installation is completed, it can be started. As the propulsion link 1 drives the conical head 101 and the cutting head 102 to rotate, the spraying component 5 starts to work and spray water, and the electric push rod 61 can selectively pull the spherical nozzle 69 to rotate to adjust the size of the sprayed water curtain, so that the water curtain can just cover the conical head 101 and the cutting head 102. The slurry generated during this process will be discharged into the outer sleeve 44 by the vortex fan 43 rotating together with the propulsion link 1 and discharged from the designated outlet of the outer sleeve 44. While preventing dust and suppressing dust, it also avoids the slurry adhering to the robotic arm of the roadheader, causing trouble in maintenance and facilitating the normal progress of the maintenance work.

[0033] Embodiment 2: On the basis of Embodiment 1, as Figure 8 and Figure 9As shown in the figure, it further includes an oil injection assembly 7, and the oil injection assembly 7 is arranged on the propulsion connecting rod 1; it is composed of an oil storage ring 71, an annular plate 72, a conical nozzle 73, a conduit 74, a magnetic plate 75, a push tube 76, an inner sleeve 77 and an inclined baffle 79. The oil storage ring 71 is slidably penetrated on the propulsion connecting rod 1. The oil storage ring 71 rotates following the propulsion connecting rod 1. At the same time, the interior of the oil storage ring 71 is divided into multiple separate and non-connecting spaces for storing cooling oil. The annular plate 72 is fixedly connected to the conical head 101, the conduit 74 is fixedly connected to the annular plate 72, the conical nozzle 73 is fixedly connected to the annular plate 72, and the conical nozzle 73 is connected to the conduit 74. The magnetic plate 75 is fixedly connected to the mounting collar 42, and the magnetic plate 75 is in adsorption contact with the oil storage ring 71. The oil inlet pipelines 103 are evenly arranged inside the conical head 101. The push tube 76 is slidably penetrated inside the oil storage ring 71. One end of the push tube 76 is fixedly connected to the annular plate 72 and is connected to the oil inlet pipelines 103. The cooling oil inside the oil storage ring 71 can enter the oil inlet pipelines 103 through this push tube 76, so that the cooling oil entering the oil inlet pipelines 103 absorbs the heat generated by the friction between the conical head 101 and the rock formation. The inner sleeve 77 is fixedly connected inside the oil storage ring 71, and the push tube 76 can slidably penetrate into the inner sleeve 77. The conduit 74 is connected to the push tube 76, and the inclined baffle 79 is fixedly connected to the connection part of the conduit 74 and the push tube 76. The inclined baffle 79 obliquely shields half of the connection part of the conduit 74 and the push tube 76, so that part of the cooling oil that needs to enter the oil inlet pipelines 103 can enter the conduit 74. Specifically, when the propulsion connecting rod 1 pushes out the conical head 101, the annular plate 72, the conical nozzle 73, the conduit 74 and the push tube 76 will move together with the conical head 101. After the push tube 76 moves to the limit distance, it will be separated from the inner sleeve 77. As the propulsion connecting rod 1 continues to push out, the oil storage ring 71 and the magnetic plate 75 are separated from adsorption. Only when the propulsion connecting rod 1 retracts and pushes the oil storage ring 71 back and comes into contact with the magnetic plate 75 again will they be adsorbed together. The cooling oil inside the oil storage ring 71 will enter the inner sleeve 77. While the push tube 76 sends oil towards the oil inlet pipelines 103, when the propulsion connecting rod 1 retracts the conical head 101, the push tube 76 will re-enter the inner sleeve 77, thereby squeezing the cooling oil inside the inner sleeve 77. This part of the squeezed cooling oil will be sprayed out from the conduit 74 along the conical nozzle 73 and sprayed on the surface of the conical head 101, lubricating the surface of the conical head 101 to a certain extent and reducing the friction heat generation of the conical head 101.

[0034] As Figure 9 shown in the figure, it further includes a rubber collar 78. The rubber collar 78 is sleeved on the push tube 76, and the rubber collar 78 is in sliding contact with the inner sleeve 77. During the process that the push tube 76 re-enters the inner sleeve 77, the rubber collar 78 can prevent the cooling oil inside the inner sleeve 77 from being extruded into the oil storage ring 71.

[0035] As Figure 10As shown in the figure, it further includes an inclined push plate 81, a mounting pipe 82, a stop block 83 and a second spring 84. The inclined push plate 81 is fixedly connected inside the inner sleeve 77. The inclined push plate 81 slides through the inclined baffle 79 and into the push pipe 76. The mounting pipe 82 is fixedly connected inside the oil inlet pipeline 103. The stop block 83 is slidably connected inside the mounting pipe 82, and the sliding direction of the stop block 83 is up and down. The stop block 83 is in sliding contact with the inclined push plate 81. A second spring 84 is provided between the stop block 83 and the mounting pipe 82. The second spring 84 can push the stop block 83 downward after the inclined push plate 81 disengages from the stop block 83, and use the stop block 83 to block the channel for the cooling oil to flow into the oil inlet pipeline 103, so that during the process of the push rod pushing out and then retracting the conical head 101, more cooling oil entering the conduit 74 from the inner sleeve 77 can be obtained, and then the conical head 101 can be lubricated more effectively.

[0036] During the process of the push rod 1 pushing out the conical head 101, the push pipe 76 and the inner sleeve 77 in the oil injection assembly 7 are separated at the same time. The cooling oil in the oil storage ring 71 will enter the oil inlet pipeline 103 of the conical head 101 along the push pipe 76, and enter the conical head 101 through the oil inlet pipelines 103 distributed everywhere on the conical head 101 for temperature reduction. At the same time, during the process of the push rod 1 retracting, the oil inlet pipeline 103 will be blocked by the stop block 83, and part of the cooling oil will be sprayed on the surface of the conical head 101 along the conical nozzle 73 through the conduit 74 to achieve the effect of lubricating the surface of the conical head 101, thereby reducing the friction overheating of the conical head 101.

[0037] The above is only the preferred embodiment of the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present invention.

Claims

1. A dust removal device for a roadway tunneling device, comprising a propulsion connecting rod (1), a conical head (101) and a cutting head (102). One end of the propulsion connecting rod (1) is fixedly connected to the conical head (101), and the cutting head (102) is arranged on the conical head (101). Its characteristics are: It further comprises an installation platform (2), a stabilizing collar (3), a guiding component (4) and a spraying component (5). The installation platform (2) is arranged on the propulsion connecting rod (1), the stabilizing collar (3) is fixedly connected to the installation platform (2), the stabilizing collar (3) is sleeved on the propulsion connecting rod (1), the guiding component (4) is arranged on the stabilizing collar (3), and the spraying component (5) is arranged on the guiding component (4); The guiding component (4) comprises a connecting block (41), an installation collar (42), a vortex fan (43) and an outer sleeve (44). The connecting block (41) is installed on the propulsion connecting rod (1), the installation collar (42) is fixedly connected to the stabilizing collar (3), the propulsion connecting rod (1) passes through the installation collar (42), the vortex fan (43) is rotatably connected to the installation collar (42), the vortex fan (43) is fixedly connected to the connecting block (41), the outer sleeve (44) is fixedly connected to the stabilizing collar (3), and the vortex fan (43) is placed inside the outer sleeve (44); The spraying component (5) comprises a water inlet joint (51), an annular inclined plate (52) and a bent nozzle (53). The water inlet joint (51) is installed on the outer sleeve (44), the annular inclined plate (52) is fixedly connected to one side of the outer sleeve (44), the bent nozzles (53) are uniformly distributed along the inclined surface of the annular inclined plate (52), and the bent nozzles (53) are all connected to the water inlet joint (51); It further comprises an adjustment component, and the adjustment component is arranged inside the bent nozzle (53); the adjustment component comprises an electric push rod (61), a pull rod (62), a connecting frame (63), a first fixing block (64), a pull rope (65), a second fixing block (66), a first spring (67), a pulling connecting rod (68) and a spherical nozzle (69). The electric push rod (61) is installed inside the water inlet joint (51), the movable rod of the electric push rod (61) is fixedly connected to the pull rod (62), the connecting frame (63) is fixedly connected to the pull rod (62), the first fixing block (64) and the second fixing block (66) are respectively fixedly connected inside the bent nozzle (53), the connecting frame (63) is fixedly connected to the pull ropes (65) having the same number as that of the bent nozzles (53), the pull ropes (65) pass through the first fixing block (64) and the second fixing block (66), the pulling connecting rod (68) is fixedly connected to the end of the pull rope (65), a first spring (67) is arranged between the pull rope (65) and the pulling connecting rod (68), the spherical nozzle (69) is slidably connected to the nozzle of the bent nozzle (53), and the pulling connecting rod (68) is hinged to the spherical nozzle (69).

2. A dust removal device for a roadway tunneling device according to claim 1, Its characteristics are: It further comprises a first spray head (46), the first spray head (46) is fixedly connected to the outer sleeve (44), and the spray port of the first spray head (46) faces the inside of the outer sleeve (44).

3. A dust removal device for a roadway tunneling device according to claim 2, Its characteristics are: It further includes an oil injection assembly (7), and the oil injection assembly (7) is arranged on the propulsion connecting rod (1); the oil injection assembly (7) includes an oil storage ring (71), an annular plate (72), a conical nozzle (73), a conduit (74), a magnetic plate (75), a push tube (76), an inner sleeve (77) and an inclined baffle (79). The oil storage ring (71) is slidably penetrated through the propulsion connecting rod (1). The annular plate (72) is fixedly connected to the conical head (101). The conduit (74) is fixedly connected to the annular plate (72). The conical nozzle (73) is fixedly connected to the annular plate (72). The conical nozzle (73) is communicated with the conduit (74). The magnetic plate (75) is fixedly connected to the mounting collar (42). The magnetic plate (75) is in adsorption contact with the oil storage ring (71). The oil inlet pipelines (103) are evenly arranged in the conical head (101). The push tube (76) is slidably penetrated through the oil storage ring (71). One end of the push tube (76) is fixedly connected to the annular plate (72) and is communicated with the oil inlet pipelines (103). The inner sleeve (77) is fixedly connected in the oil storage ring (71). The push tube (76) can be slidably inserted into the inner sleeve (77). The conduit (74) is communicated with the push tube (76). An inclined baffle (79) is fixedly connected to the connection part of the conduit (74) and the push tube (76).

4. The dust removal device for a roadway tunneling device according to claim 3, characterized in that: it further includes a rubber collar (78). The rubber collar (78) is sleeved on the push tube (76), and the rubber collar (78) is in sliding contact with the inner sleeve (77).

5. The dust removal device for a roadway tunneling device according to claim 4, characterized in that: it further includes an inclined push plate (81), a mounting tube (82), a stop block (83) and a second spring (84). The inclined push plate (81) is fixedly connected in the inner sleeve (77). The inclined push plate (81) is slidably inserted into the push tube (76). The mounting tube (82) is fixedly connected in the oil inlet pipelines (103). The stop block (83) is slidably connected in the mounting tube (82). A second spring (84) is arranged between the stop block (83) and the mounting tube (82). The stop block (83) is in sliding contact with the inclined push plate (81).

Images