A multi-functional manual drill and blast jumbo for tunnel construction

Abstract

The present invention discloses a multi-functional manual drill and blast trolley for tunnel construction, including a trolley body, and further comprising: a guiding arc-shaped frame, a fixing column is installed at the front end of the guiding arc-shaped frame, and a track groove is formed on the outer surface of the top of the guiding arc-shaped frame; a driving assembly, the driving assembly is installed on the right side of the bottom end of the guiding arc-shaped frame; a telescopic assembly, the telescopic assembly is arranged on the inner wall of the track groove and can slide up and down on the inner wall of the track groove; a single adjusting assembly, the single adjusting assembly is installed on one side of the telescopic assembly, and the single adjusting assembly is slidably connected with the telescopic assembly; an auxiliary drilling assembly, the auxiliary drilling assembly is installed at the top end of the single adjusting assembly. This multi-functional manual drill and blast trolley for tunnel construction has the advantages of being able to uniformly and / or adjust the position of the single adjusting assembly, enabling the drilling to meet the angle requirements of the perimeter hole blasting design, improving the drilling angle and accuracy, improving the blasting quality, and reducing the waste of resources.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel construction, and particularly to a multi-functional manual drill and blast jumbo for tunnel construction. Background Technique

[0002] Common tunnel drill and blast excavation jumbos include multi-boom rock drilling jumbos and manual drill and blast excavation jumbos. Multi-boom rock drilling jumbos are divided into domestic and imported ones. Domestic multi-boom rock drilling jumbos have low performance stability and efficiency, but imported multi-boom rock drilling jumbos are expensive, making domestic tunnel excavation construction more inclined to use manual drill and blast excavation jumbos. The manual drill and blast excavation jumbo is a simple platform for workers to construct, with a simple structure, economy and practicability;

[0003] Manual drill and blast excavation is the most common excavation construction technology for current mountain tunnels. It is a technology for tunnel excavation by manually using a pneumatic rock drill to drill holes → charge explosives → blast → muck out etc. on the heading face. In the full-section excavation construction of tunnels, the existing manual drill and blast excavation jumbo mainly plays a platform role. Whether the drilling angle and depth meet the requirements of drill and blast design during the drill and blast excavation process mainly depends on the technical level of the drilling operation personnel;

[0004] However, the quality and accuracy of manual drilling are the key to controlling tunnel overbreak and underbreak, and are the difficulties in improving the quality of tunnel excavation construction and saving construction costs, and the control difficulty is relatively large. How to improve the drilling quality of the manual drill and blast method and reduce tunnel overbreak and underbreak puts forward more practically significant requirements for the design improvement of the existing drill and blast jumbos. In the existing manual drill and blast construction, the drilling angle and accuracy cannot be well controlled, the blasting quality is low, and the tunnel sometimes has overbreak and underbreak, resulting in excessive use of shotcrete and waste of resources. Summary of the Invention

[0005] The purpose of the present invention is to provide a multi-functional manual drill and blast jumbo for tunnel construction to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A multi-functional manual drill and blast jumbo for tunnel construction, including a jumbo body, and further including: a guiding arc-shaped frame, a fixed column is installed at the front end of the guiding arc-shaped frame, and a track groove is opened on the outer surface of the top of the guiding arc-shaped frame; and

[0007] A driving assembly, the driving assembly is installed on the right side at the bottom end of the guiding arc-shaped frame; and

[0008] A telescopic assembly, the telescopic assembly is arranged on the inner wall of the track groove and can slide up and down on the inner wall of the track groove; and

[0009] A single adjusting assembly, the single adjusting assembly is installed on one side of the telescopic assembly, and the single adjusting assembly is slidably connected with the telescopic assembly; and

[0010] The auxiliary punching component is installed at the top of a single adjustment component.

[0011] Preferably, a sliding rail is installed at the top of the front end of the trolley body. A sliding seat is provided at the front end of the sliding rail. A first hydraulic jack is installed on one side of the sliding seat, and a second hydraulic jack is installed at the front end of the sliding seat. The guiding arc-shaped frame is installed at the front end of the second hydraulic jack.

[0012] Preferably, three groups of guiding arc-shaped frames are provided. The three groups of guiding arc-shaped frames are not connected to each other. A cross brace is installed at the bottom of the guiding arc-shaped frame, and the intersection position of the cross braces is connected by a self-locking hinge.

[0013] Preferably, the driving component includes a side fixing plate. The side fixing plate is installed on the right side at the bottom end of the guiding arc-shaped frame. A first reduction motor is installed on the left side of the side fixing plate. A gear is provided at the output end of the first reduction motor, and an annular rack is sleeved and meshed on the outer surface of the gear.

[0014] Preferably, the telescopic component includes a telescopic plate. A first linear rack is installed on the left side of the telescopic plate. A first gear is meshed on one side of the first rack. A second gear is installed at one end of the first gear. A fixing nail is installed at the front end of the bottom of the telescopic plate. A limiting plate is installed at the front end of the telescopic plate. A worm is provided on the inner wall of the limiting plate. A rotating disk is installed at one end of the worm, and the second gear is meshed with the annular rack.

[0015] Preferably, the single adjustment component includes a sliding plate. A pin shaft is provided at the front end of the bottom of the sliding plate. A fixing buckle is movably sleeved on the outer surface of the pin shaft. A second linear rack is installed on the right side of the sliding plate. A third gear is meshed on the right side of the second linear rack. A second reduction motor is installed on one side of the third gear. The second reduction motor is installed below the guiding arc-shaped frame, and the fixing buckle is detachably connected to the fixing nail.

[0016] Preferably, the auxiliary punching component includes a frame plate. A rotating shaft is installed at the bottom end of the frame plate. A sleeve is movably sleeved on the outer surface of the rotating shaft. A worm gear is installed at the end of the rotating shaft. A guiding fixed rod is installed at the top of the frame plate.

[0017] Preferably, guiding heads are installed at both ends of the guiding fixed rod. A supporting opening is provided on one side of the guiding head. The top of the supporting opening is in an open state. The worm gear is meshed with the worm. The sleeve is installed at the top end of the sliding plate. When the sliding plate is not adjusted, the sliding plate and the frame plate are connected to each other by the fixing buckle and the fixing nail to be in a fixed state.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The guiding arc-shaped frame can be adjusted in the front-back and left-right directions by hydraulic jack 1 and hydraulic jack 2 to compensate for the errors caused by the repeated movement of the drill-blasting jumbo to the rock surface. Finally, the position of the auxiliary drilling component is adjusted centrally and uniformly to achieve the positioning effect of accurately positioning the peripheral holes.

[0020] 2. The position of the auxiliary drilling component can be adjusted uniformly and / or by using a single adjusting component, so that the guiding fixed rod of the drill pipe is kept consistent with the designed hole height position. Finally, by manually turning the rotating disc, the worm is rotated, and the worm drives the worm wheel to rotate. The worm wheel drives the rotating shaft and the frame plate to rotate, adjusting the angle on both sides of the guiding fixed rod for fine adjustment, so that the angle meets the requirements of the peripheral hole blasting design. The guiding fixed rod and the supporting port keep the angle of the drill pipe unchanged during drilling, improving the drilling angle and accuracy, improving the blasting quality, and reducing the waste of resources.

[0021] 3. Rotate the fixing buckle to move the fixing buckle away from the fixing nail to unlock the sliding plate. Then, by starting the second reduction motor, the third gear is driven to rotate. The third gear drives the second linear rack engaged with it and the sliding plate installed on the side of the second linear rack to move upward, achieving the effect of adjusting a single guiding fixed rod, so as to better assist the drill pipe in drilling and facilitating the adjustment of the guiding fixed rod for a single auxiliary drill pipe drilling. Description of the Drawings

[0022] Figure 1 It is a schematic diagram of the back structure of the jumbo body of the present invention;

[0023] Figure 2 It is a schematic diagram of the front part structure of the jumbo body of the present invention;

[0024] Figure 3 For the present invention Figure 2 An enlarged schematic diagram of A in it;

[0025] Figure 4 It is a schematic diagram of the guiding arc-shaped frame structure of the present invention;

[0026] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of B in it;

[0027] Figure 6 It is a schematic diagram of the structure of the telescopic component and the single adjusting component of the present invention;

[0028] Figure 7 It is a schematic diagram of the structure of the auxiliary drilling component of the present invention.

[0029] In the figure: 1 - trolley body; 10 - sliding rail; 11 - sliding seat; 12 - hydraulic jack one; 13 - hydraulic jack two; 14 - guiding arc-shaped frame; 15 - self-locking hinge; 16 - scissors brace; 17 - fixed column; 18 - track groove; 2 - driving assembly; 20 - side fixing plate; 21 - reduction motor one; 22 - gear; 23 - annular rack; 3 - telescopic assembly; 30 - telescopic plate; 31 - linear rack one; 32 - gear one; 33 - gear two; 34 - fixing nail; 35 - limiting plate; 36 - worm; 37 - rotating disk; 4 - single adjustment assembly; 40 - sliding plate; 41 - pin shaft; 42 - fixing buckle; 43 - linear rack two; 44 - gear three; 45 - reduction motor two; 5 - auxiliary drilling assembly; 50 - frame plate; 51 - rotating shaft; 52 - sleeve; 53 - worm gear; 54 - guiding fixed rod; 55 - guiding head; 56 - supporting opening. Detailed implementation manner

[0030] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0031] Please refer to Figure 1-7 , the present invention provides a technical solution: a multifunctional manual drilling and blasting trolley for tunnel construction, including a trolley body 1, and further including: a guiding arc-shaped frame 14, a fixed column 17 is installed at the front end of the guiding arc-shaped frame 14, and a track groove 18 is opened on the outer surface of the top of the guiding arc-shaped frame 14; and

[0032] a driving assembly 2, the driving assembly 2 is installed on the right side at the bottom end of the guiding arc-shaped frame 14; and

[0033] a telescopic assembly 3, the telescopic assembly 3 is arranged on the inner wall of the track groove 18 and can slide up and down on the inner wall of the track groove 18; and

[0034] a single adjustment assembly 4, the single adjustment assembly 4 is installed on one side of the telescopic assembly 3, and the single adjustment assembly 4 is slidably connected to the telescopic assembly 3; and

[0035] an auxiliary drilling assembly 5, the auxiliary drilling assembly 5 is installed at the top end of the single adjustment assembly 4.

[0036] Furthermore, a sliding rail 10 is installed at the top of the front end of the trolley body 1. A sliding seat 11 is provided at the front end of the sliding rail 10. A first hydraulic jack 12 is installed on one side of the sliding seat 11, and a second hydraulic jack 13 is installed at the front end of the sliding seat 11. A guiding arc-shaped frame 14 is installed at the front end of the second hydraulic jack 13. The guiding arc-shaped frames 14 are set in three groups, and the three groups of guiding arc-shaped frames 14 are not connected to each other. A cross brace 16 is installed at the bottom of the guiding arc-shaped frame 14, and the intersecting positions of the cross braces 16 are connected by a self-locking hinge 15. During actual use, the sliding rail 10 and the sliding seat 11 are connected to the cross section of the advancing end of the trolley body 1. The top surface of the second hydraulic jack 13 is connected to the guiding arc-shaped frame 14, and it is ensured that the guiding arc-shaped frame 14 can be adjusted in the front-back and left-right directions by the first hydraulic jack 12 and the second hydraulic jack 13 to make up for the errors caused by the repeated movement of the drill-blasting trolley to the rock surface. Finally, centralized and unified adjustment is carried out to achieve the positioning effect of accurately positioning the peripheral holes. A guiding arc-shaped frame 14 similar to the primary support steel frame is welded on the side of the drill-blasting trolley close to the heading face. The radius of the guiding arc-shaped frame 14 is 5 cm smaller than the designed excavation contour line of the tunnel and is prefabricated. It is divided into three units, namely A, B, and C, according to the categories of the primary support steel frames. The units are not connected to each other. The guiding arc-shaped frame 14 is connected to the drill-blasting trolley in the form of a cross brace 16, and the intersecting positions of the cross braces 16 are connected by a self-locking hinge 15 to ensure that the angle of the arc-shaped frame can be adjusted.

[0037] Furthermore, the driving assembly 2 includes a side fixing plate 20. The side fixing plate 20 is installed on the right side at the bottom end of the guiding arc-shaped frame 14. A first reduction motor 21 is installed on the left side of the side fixing plate 20. A gear 22 is provided at the output end of the first reduction motor 21. An annular rack 23 is sleeved and meshed on the outer surface of the gear 22. The telescopic assembly 3 includes a telescopic plate 30. A first linear rack 31 is installed on the left side of the telescopic plate 30. A first gear 32 is meshed on one side of the rack 31. A second gear 33 is installed at one end of the first gear 32. A fixing nail 34 is installed at the front end of the bottom of the telescopic plate 30. A limiting plate 35 is installed at the front end of the telescopic plate 30. A worm 36 is provided on the inner wall of the limiting plate 35. A rotating disk 37 is installed at one end of the worm 36. The second gear 33 is meshed with the annular rack 23. The auxiliary drilling assembly 5 includes a frame plate 50. A rotating shaft 51 is installed at the bottom end of the frame plate 50. A sleeve 52 is movably sleeved on the outer surface of the rotating shaft 51. A worm gear 53 is installed at the end of the rotating shaft 51. A guiding fixing rod 54 is installed at the top of the frame plate 50. Guiding heads 55 are installed at both ends of the guiding fixing rod 54. A supporting opening 56 is opened on one side of the guiding head 55, and the top of the supporting opening 56 is in an open state. The worm gear 53 is meshed with the worm 36. The sleeve 52 is installed at the top end of the sliding plate 40. When the sliding plate 40 is not adjusted, the sliding plate 40 and the frame plate 50 are connected to each other in a fixed state through a fixing buckle 42 and a fixing nail 34;

[0038] In real-time use, after the last cycle of tunnel excavation is completed, the trolley 1 is pushed to the face, and the trolley 1 is placed in the center line of the tunnel excavation as much as possible. The adjustment range of the guide arc frame 14 is reduced, and the position of the peripheral eye designed for blasting of the tunnel is measured. The position of the guide arc frame 14 can be adjusted by using the hydraulic jack 12 and the hydraulic jack 2 13 on the guide arc frame 14, and the three groups of guide arc frames 14 are adjusted. The positioning of the guide arc frame 14 is adjusted by adjusting the scissor support 16. After the adjustment is completed, the self-locking hinge 15 of the scissor support 16 is locked to ensure that the positioning of the guide arc frame 14 is accurate. After the positioning of the guide arc frame 14 is completed, the position of the peripheral eye for blasting is measured and marked on the face. According to the marked eye position, the drill rod is first placed from the top opening of the support port 56 into the two ends of the guide fixing rod 54. In the end guide head 55, the guide fixing rod 54 has a certain length, which is used to support the opening 56 to effectively fix the drill rod, and start the reduction motor 21, the reduction motor 21 drives the gear 22 to rotate, the gear 22 drives the annular rack 23 to rotate, the annular rack 23 drives the gear 2 33 to rotate, the gear 2 33 drives the linear rack 1 31 meshed with it, and moves the telescopic plate 30 upward, and adjusts the position of the auxiliary punching assembly 5 at the top of the telescopic plate 30 to make the guide fixing rod 54 of the drill rod consistent with the designed hole height position, and finally manually twists the rotating disk 37 to rotate the worm 36, and the worm 36 drives the worm wheel 53 to rotate, the worm wheel 53 drives the rotating shaft 51 and the frame plate 50 to rotate, and adjusts the angle of the guide fixing rod 54 to the left and right, and performs fine adjustment to make the drilling position of the drill rod meet the position requirements of the peripheral eye blasting design.

[0039] Furthermore, the single adjustment component 4 includes a sliding plate 40, a pin 41 is provided at the front end of the bottom of the sliding plate 40, a fixing buckle 42 is movably sleeved on the outer surface of the pin 41, a linear rack 2 43 is installed on the right side of the sliding plate 40, the linear rack 2 43 is meshed and connected to the gear 3 44 on the right side, a reduction motor 2 45 is installed on one side of the gear 3 44, and the reduction motor 2 45 is installed under the guide arc frame 14. The fixing buckle 42 is detachably connected to the fixing nail 34. In real-time use, when it is necessary to adjust the position of the single adjustment component 5, first The fixing buckle 42 is rotated to remove the fixing buckle 42 from the fixing nail 34, unlocking the sliding plate 40, and then the reduction motor 2 45 is started to drive the gear 3 44 to rotate. The gear 3 44 drives the linear rack 2 43 meshing with it and the sliding plate 40 installed on the side of the linear rack 2 43 to move upward, thereby achieving the effect of adjusting the single guide fixing rod 54, so as to better assist the drill rod in drilling. The guide fixing rod 54 and the supporting opening 56 keep the angle of the drill rod in the drill hole unchanged at all times, thereby improving the drilling angle and accuracy.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multi-functional manual drilling and blasting trolley for tunnel construction, comprising a trolley body (1), characterized in that: It also includes: a guiding arc-shaped frame (14), a fixing column (17) is installed at the front end of the guiding arc-shaped frame (14), and a track groove (18) is formed on the outer surface of the top of the guiding arc-shaped frame (14); and a driving assembly (2), the driving assembly (2) is installed on the right side of the bottom end of the guiding arc-shaped frame (14); and a telescopic assembly (3), the telescopic assembly (3) is arranged on the inner wall of the track groove (18) and can slide up and down on the inner wall of the track groove (18); and a single adjusting assembly (4), the single adjusting assembly (4) is installed on one side of the telescopic assembly (3), and the single adjusting assembly (4) is slidably connected to the telescopic assembly (3); and an auxiliary drilling assembly (5), the auxiliary drilling assembly (5) is installed at the top end of the single adjusting assembly (4); a sliding rail (10) is installed at the top of the front end of the trolley body (1), a sliding seat (11) is arranged at the front end of the sliding rail (10), a first hydraulic jack (12) is installed on one side of the sliding seat (11), a second hydraulic jack (13) is installed at the front end of the sliding seat (11), and the guiding arc-shaped frame (14) is installed at the front end of the second hydraulic jack (13); The driving assembly (2) includes a side fixing plate (20), the side fixing plate (20) is installed on the right side of the bottom end of the guiding arc-shaped frame (14), a first reduction motor (21) is installed on the left side of the side fixing plate (20), a gear (22) is arranged at the output end of the first reduction motor (21), and an annular rack (23) is sleeved and meshed on the outer surface of the gear (22).

2. The multifunctional manual drilling and blasting trolley for tunnel construction according to claim 1, characterized in that: The guiding arc-shaped frames (14) are arranged in three groups, and the three guiding arc-shaped frames (14) are not connected to each other. A cross brace (16) is installed at the bottom of the guiding arc-shaped frame (14), and the intersecting positions of the cross braces (16) are connected by a self-locking hinge (15).

3. The multifunctional manual drill and blast jumbo for tunnel construction according to claim 2, characterized in that: The telescopic assembly (3) includes a telescopic plate (30), a first linear rack (31) is installed on the left side of the telescopic plate (30), a first gear (32) is meshed on one side of the rack (31), a second gear (33) is installed at one end of the first gear (32), a fixing nail (34) is installed at the front end of the bottom of the telescopic plate (30), a limiting plate (35) is installed at the front end of the telescopic plate (30), a worm (36) is arranged on the inner wall of the limiting plate (35), a rotating disk (37) is installed at one end of the worm (36), and the second gear (33) is meshed with the annular rack (23).

4. The multifunctional manual drilling and blasting trolley for tunnel construction according to claim 3, characterized in that: The single adjusting assembly (4) includes a sliding plate (40), a pin shaft (41) is arranged at the front end of the bottom of the sliding plate (40), a fixing buckle (42) is movably sleeved on the outer surface of the pin shaft (41), a second linear rack (43) is installed on the right side of the sliding plate (40), a third gear (44) is meshed on the right side of the second linear rack (43), a second reduction motor (45) is installed on one side of the third gear (44), the second reduction motor (45) is installed below the guiding arc-shaped frame (14), and the fixing buckle (42) is detachably connected to the fixing nail (34).

5. The multifunctional manual drill and blast jumbo for tunnel construction according to claim 4, characterized in that: The auxiliary punching component (5) includes a frame plate (50). A rotating shaft (51) is installed at the bottom end of the frame plate (50). A sleeve (52) is movably sleeved on the outer surface of the rotating shaft (51). A worm gear (53) is installed at the end of the rotating shaft (51). A guiding and fixing rod (54) is installed at the top of the frame plate (50).

6. The multifunctional manual drill and blast jumbo for tunnel construction according to claim 5, wherein: Guiding heads (55) are installed at both ends of the guiding and fixing rod (54). A supporting opening (56) is formed on one side of the guiding head (55). The top of the supporting opening (56) is in an open state. The worm gear (53) is meshed with a worm (36). The sleeve (52) is installed at the top end of the sliding plate (40). When the sliding plate (40) is not adjusted, the sliding plate (40) and the frame plate (50) are connected to each other in a fixed state through a fixing buckle (42) and a fixing nail (34).

Images