CN116220130A

CN116220130A - Land leveler for tunnel construction

Info

Publication number: CN116220130A
Application number: CN202310505110.2A
Authority: CN
Inventors: 陈希茂; 刘逸敏; 董景超; 张宏闽; 林朝阳; 张健鹏
Original assignee: China Railway 24th Bureau Group Co Ltd; Fujian Railway Construction Co Ltd of China Railway 24th Bureau Group Co Ltd
Current assignee: China Railway 24th Bureau Group Co Ltd; Fujian Railway Construction Co Ltd of China Railway 24th Bureau Group Co Ltd
Priority date: 2023-05-08
Filing date: 2023-05-08
Publication date: 2023-06-06
Anticipated expiration: 2043-05-08
Also published as: CN116220130B

Abstract

The application relates to land leveling equipment technical field, and discloses a tunnel is built with leveler, include: the installation rack, the downside of installation rack is provided with the scraper blade, the scraper blade is connected with the both sides arc pole of installation rack, both sides be provided with the headstock between the arc pole, the headstock is connected with the scraper blade, the internally mounted of headstock has the action wheel and follows the driving wheel, the action wheel is connected with power unit, the action wheel passes through the conveyer belt with following the driving wheel and is connected, the scraper blade left side is provided with the connecting rod, the connecting rod is connected from the driving wheel, the circumference side of connecting rod is provided with auger blade, auger blade's upside is provided with the baffle. According to the invention, through the arrangement of the auger blade and the scraping plate, the accumulated soil at the front side of the scraping plate can be driven to move to two sides by the auger blade under the condition that the scraping plate does not need to horizontally deflect, so that the effect of reducing the resistance of the accumulated soil to the scraping plate is realized, and the working efficiency of the device is improved through the actions.

Description

Land leveler for tunnel construction

Technical Field

The application relates to the technical field of land leveling equipment, in particular to a land leveler for tunnel construction.

Background

The tunnel is an engineering building buried in a stratum, and in the construction process, a land leveler is required to be used for leveling the ground of the tunnel, so that the subsequent construction operation can be smoothly performed.

The existing land leveler mainly comprises a travelling mechanism, a mounting frame, a rotating mechanism, a deflection mechanism and a scraping plate, wherein the travelling mechanism drives the scraping plate to travel on the ground to be leveled during working, then the deflection mechanism drives the scraping plate to longitudinally deflect, the bottom end of the scraping plate is located at a specified distance from the ground, then the rotating mechanism drives the mounting frame to horizontally rotate to a certain angle with the scraping plate, so that the scraping plate can scrape away accumulated soil on a working path in the working process, and the scraping plate is in a horizontal deflection state at the moment, so that the accumulated soil can gradually move to the deflection side of the scraping plate, finally leaves the front side of the scraping plate, and the ground leveling operation is realized through the actions.

However, in the above-described process, in order to reduce the resistance of the accumulated soil to the blade, it is necessary to horizontally deflect the blade, and thus, the single working area of the blade is reduced, thereby affecting the working efficiency of the grader.

Disclosure of Invention

The utility model provides a tunnel is built and is used leveler possesses the advantage that increases scraper blade single working area for solve the problem that the influence to leveler work efficiency is reduced to scraper blade single working area.

In order to achieve the above purpose, the present application adopts the following technical scheme: a grader for tunnel construction, comprising: the rotary table is installed to the last side of mounting bracket, the upside and the running gear of revolving stage are connected, the downside of mounting bracket is provided with the scraper blade, the right flank of scraper blade is connected with the both sides arc pole of mounting bracket, the right flank of mounting bracket arc pole is installed the hydraulic stem, the output pole of hydraulic stem is articulated with the right flank of scraper blade, both sides be provided with the headstock between the arc pole, the headstock forms fixed connection with the scraper blade, the inside of headstock is rotated in proper order from right side to left and is installed action wheel and follow the driving wheel, the action wheel is in the right side position of scraper blade, follow the driving wheel and be in the left side position of scraper blade, the pivot and the power unit of action wheel are connected, the action wheel forms the transmission with following the driving wheel through the conveyer belt and is connected, the scraper blade left side is located the front and back position of headstock and all is provided with the connecting rod, the one end of connecting rod is connected with the pivot from the driving wheel, the circumference side of connecting rod is provided with auger blade, and the rotation direction of front and back both sides auger blade is opposite.

Further, a baffle is arranged on the upper side of the auger blade, and the baffle is connected with the scraping plate.

Further, both sides all are provided with the dead lever around the scraper blade, the other end of dead lever stretches into the inside of connecting rod to form the rotation with the connecting rod and be connected, increase the stability of connecting rod through the dead lever.

Further, the inside of connecting rod is provided with the extension piece, the extension piece is in the position between the adjacent auger blade, the spout has all been seted up to the both sides position that is located the extension piece in the connecting rod inside, be provided with the slider in the spout, the slider is connected with the extension piece, the outside position that is located the slider in the spout inside is provided with the elastic component, the lateral surface of slider and the inner wall of spout are connected respectively at the both ends of elastic component, the extension piece is the arc end towards the one end of dead lever, the position fixed mounting that corresponds the extension piece in the dead lever has the cam piece, the circumference side of cam piece contacts with the arc end of extension piece, when the arc end of extension piece is contacted to the protrusion end of cam piece, the extension piece stretches out.

Further, the orientation of the adjacent protruding members is reversed and the orientation of the adjacent cam members is reversed such that when the protruding ends of the cam members contact the arcuate ends of the protruding members, the adjacent protruding members protrude in opposite directions.

Further, the sliding block is in sealing movable connection with the sliding groove, the side face of the extending part, which is located at the inner side of the sliding block, is in sliding connection with the connecting rod, an overlapping part is arranged in the extending part in a sealing movable mode, liquid guide holes are formed in the extending part, which are located at the two sides of the overlapping part, respectively, and are used for communicating a cavity, which is located at the inner side of the overlapping part, of the extending part with a cavity, which is located at the outer side of the sliding block, of the sliding groove.

Further, the liquid medium is filled in the cavity which is communicated with the inner cavity of the extension piece through the liquid guide hole.

The utility model provides a pair of leveling machine for tunnel construction is through auger blade and scraper blade's setting for the scraper blade is under the condition that need not the horizontal deflection, and the long-pending soil that is located scraper blade front side position can be driven to both sides by auger blade and remove, and then realizes reducing the effect of the resistance of long-pending soil to the scraper blade, through above-mentioned action, improves the work efficiency of this device.

Through the setting of auger blade, connecting rod and baffle for in-process above-mentioned auger blade, connecting rod and baffle can produce the effect of bearing to the partial soil accumulation of scraper blade front side, through this effect, make the resistance of soil accumulation to the scraper blade further reduce, and then indirectly improve the work efficiency of this device.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description, serve to explain the principles of the disclosure.

The present application will be more clearly understood from the following detailed description with reference to the accompanying drawings, in which:

FIG. 1 is a schematic view of a left side structure of a scraper according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram showing a connection state of a scraper and a power box according to a first embodiment of the present invention;

FIG. 3 is a schematic view illustrating an internal structure of a power box according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram showing a connection state between a fixing rod and a connecting rod in a second embodiment of the present invention;

FIG. 5 is a schematic view illustrating an internal structure of a connecting rod according to a second embodiment of the present invention;

FIG. 6 is an enlarged schematic view of a portion of the structure of FIG. 5A in accordance with the present invention;

FIG. 7 is a schematic view showing the angle of extension of the extension member according to the second embodiment of the present invention;

FIG. 8 is a schematic diagram showing a connection state of a cam member and a fixing rod according to a second embodiment of the present invention;

FIG. 9 is a schematic view showing a connection state of an overlapping member and an extending member according to a third embodiment of the present invention;

fig. 10 is a schematic view showing a connection state of the scraper and the mounting frame.

Reference numerals:

1. a mounting frame; 2. a rotary table; 3. a scraper; 4. a hydraulic rod; 5. a power box; 6. a driving wheel; 7. driven wheel; 8. a conveyor belt; 9. a connecting rod; 10. auger blades; 11. a baffle; 12. a fixed rod; 13. an extension member; 14. a chute; 15. a slide block; 16. an elastic member; 17. a cam member; 18. an overlapping member; 19. and a liquid guide hole.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Example 1

Referring to fig. 1, 2, 3 and 10, a land leveler for tunnel construction comprises a mounting frame 1, a rotary table 2 is mounted on the upper side of the mounting frame 1, the upper side of the rotary table 2 is connected with a travelling mechanism (similar to a vehicle in the prior art, not shown in the figure), through the arrangement of the rotary table 2, the device can enable accumulated soil in the moving direction of a scraper 3 to be more quickly discharged to two sides on the premise of not considering the single working area of the scraper 3, the scraper 3 is arranged on the lower side of the mounting frame 1, the right side of the scraper 3 is hinged and fixed with arc rods on two sides of the mounting frame 1, a space exists between the arc rods on two sides of the mounting frame 1, a hydraulic rod 4 (similar to the combination of a hydraulic cylinder and an output rod in the prior art) is mounted on the right side of the arc rods of the mounting frame 1, the output rod of the hydraulic rod 4 passes through the arc rods, the utility model is hinged and fixed with the right side surface of the scraper 3, a power box 5 is arranged between the arc rods at two sides, the power box 5 and the scraper 3 are fixedly connected, a driving wheel 6 and a driven wheel 7 are sequentially rotatably arranged in the power box 5 from right to left, the driving wheel 6 is positioned at the right side position of the scraper 3, the driven wheel 7 is positioned at the left side position of the scraper 3, a rotating shaft of the driving wheel 6 is connected with a power mechanism (such as a motor, not shown in the figure), the driving wheel 6 and the driven wheel 7 are in transmission connection through a conveying belt 8, connecting rods 9 are respectively arranged at the front and rear positions of the power box 5 at the left side of the scraper 3, one end of the connecting rods 9 facing the power box 5 is welded and fixed with the rotating shaft of the driven wheel 7, auger blades 10 are fixedly arranged at the circumferential side surfaces of the connecting rods 9, the rotating directions of the auger blades 10 at the front and the rear sides are opposite, baffles 11 are arranged at the upper sides of the auger blades 10, the right side of the baffle 11 and the left side surface of the scraping plate 3 are welded and fixed;

in the process that the travelling mechanism drives the mounting frame 1 and the scraping plate 3 to work, the power mechanism drives the driving wheel 6 to rotate, so that the driven wheel 7 rotates anticlockwise, then, the driven wheel 7 drives the connecting rod 9 and the auger blade 10 to synchronously rotate, and accumulated soil moving upwards along the scraping plate 3 can be driven by the auger blade 10 to move towards the front side and the rear side of the scraping plate 3 through the rotating auger blade 10, so that the scraping plate 3 can realize the effect of reducing the resistance of the accumulated soil to the scraping plate 3 under the condition of not needing horizontal deflection, and the working efficiency of the device is further improved; meanwhile, in the process, the region surrounded by the upper side of the auger blade 10, the upper side of the connecting rod 9 and the lower side of the baffle 11 can bear the load on the accumulated soil in the region, so that the gravity of the accumulated soil in the region can be applied to the structure (the resistance born by the scraper 3 is the sum of the gravity of the accumulated soil and the friction between the accumulated soil and the ground soil, and the action reduces the contact pressure between the gravity of the accumulated soil and the ground soil), and the resistance of the accumulated soil to the scraper 3 is further reduced through the action, so that the working efficiency of the device is indirectly improved.

In the drawings, the direction of rotation of the auger blade 10 is indicated by the text in the specification.

Example two

Referring to fig. 4, 5, 6 and 8, the present embodiment is a further improvement of the first embodiment, and the improvement is that: the front side and the rear side of the scraper 3 are both welded with a fixed rod 12, the other end of the fixed rod 12 stretches into the connecting rod 9 and is in rotary connection with the connecting rod 9, an extending piece 13 is axially and equidistantly arranged in the connecting rod 9 in a sealing sliding manner (the connecting relationship is similar to that between an oil cylinder and a piston in the prior art), the directions of the adjacent extending pieces 13 are opposite, the extending pieces 13 are positioned between the adjacent auger blades 10, sliding grooves 14 are formed in the positions of the two sides of the connecting rod 9, sliding blocks 15 are slidably arranged in the sliding grooves 14, one side of the sliding blocks 15 facing the extending pieces 13 is fixedly welded with the extending pieces 13, elastic pieces 16 are arranged in the positions of the sliding grooves 14, two ends of the elastic pieces 16 are respectively connected with the outer side surfaces of the sliding blocks 15 and the inner wall of the sliding grooves 14, one end of the extending piece 13 faces the fixed rod 12, a cam piece 17 is fixedly arranged in the position of the connecting rod 12 corresponding to the extending piece 13, the directions of the adjacent cam pieces 17 are opposite, the circumferential side surfaces of the cam pieces 17 are in contact with the arc-shaped ends of the extending pieces 13, and when the protrusions of the cam pieces 17 are in contact with the arc-shaped ends of the extending pieces 13, as shown in an arc-shaped state 7;

in the process of rotating the connecting rod 9, the connecting rod 9 drives the extension piece 13 to synchronously rotate, so that the extension piece 13 and the cam piece 17 form a relative rotation state, after that, when the protruding end of the cam piece 17 contacts the arc-shaped end of the extension piece 13, the extension piece 13 drives the sliding block 15 to compress the elastic piece 16, so that the outer side end of the extension piece 13 extends into between the adjacent auger blades 10, through the action, pushing action is generated on the soil blocked at the position, the blocked soil is caused to be separated from the auger blades 10, through the action, the influence of soil blocking on the soil discharging operation of the auger blades 10 is reduced, and the working efficiency of the device is indirectly improved (the movement of the blocked soil is pushed by the extension piece 13 towards the scraping plate 3, so that the probability that the soil is attached to the fixed position is reduced, and the soil is caused to be pushed by the follow-up soil and then separated); meanwhile, when the extension piece 13 extends out, bearing force is applied to the accumulated soil at the upper side of the auger blade 10, so that the bearing capacity of the auger blade 10 to the accumulated soil is increased, and through the action, the resistance of the accumulated soil to the scraping plate 3 is further reduced, so that the working efficiency of the device is indirectly improved.

Example III

Referring to fig. 4, 6, 8 and 9, the present embodiment is a further improvement of the second embodiment, and the improvement is that: the sliding block 15 is in sealed sliding connection with the sliding groove 14, the side surface of the extending part 13, which is positioned at the inner side of the sliding block 15, is in sliding connection with the connecting rod 9, the overlapping part 18 is clamped in the extending part 13 in a sealed sliding way, liquid guide holes 19 are formed in the extending part 13, which are positioned at the two sides of the overlapping part 18, one side of the liquid guide hole 19 is communicated with a cavity, which is positioned at the inner side of the overlapping part 18, of the extending part 13, the other side of the liquid guide hole 19 is communicated with a cavity, which is positioned at the outer side of the sliding block 15, of the sliding groove 14, and a liquid medium (such as hydraulic oil) is filled in the cavity, which is communicated with the inner cavity of the extending part 13, of the sliding groove 14 through the liquid guide hole 19;

in the process that the cam piece 17 drives the extension piece 13 to extend, the sliding block 15 can squeeze the medium in the sliding groove 14, so that the medium enters the inner cavity of the extension piece 13 through the liquid guide hole 19, the overlapping piece 18 is driven to extend from the extension piece 13, the length of the extension piece 13 is further approximately prolonged through the action, the extension piece 13 can push blocked soil away from the auger blade 10 more easily, and the bearing capacity of the auger blade 10 on accumulated soil is further increased.

Example IV

This embodiment is a further improvement over embodiments two and three in that: when the extension 13 (or the overlapping member 18) is extended, if it still cannot push the blocked soil away from the auger blade 10, then the soil between the blocked soil and the extension 13 (or the overlapping member 18) is pressed onto the blocked soil, so that the volume of the blocked soil gradually increases until the extension 13 (or the overlapping member 18) can push the soil away from the auger blade 10; when the volume of the clogged soil increases gradually, the resistance of the scraper 3 against the accumulated soil on the front side of the scraper 3 is further indirectly dispersed.

Claims

1. A grader for tunnel construction, comprising: the utility model provides a power box (5) is arranged between the right side of output rod and scraper blade (3), its characterized in that, both sides are hinged with the right side of scraper blade (3) to output rod of hydraulic rod (4), power box (5) forms fixed connection with scraper blade (3), the inside of power box (5) is rotated in proper order from the right side to left and is installed action wheel (6) and follow driving wheel (7), action wheel (6) are in the right side position of scraper blade (3), follow driving wheel (7) are in the left side position of scraper blade (3), the pivot and the power unit of action wheel (6) are connected, action wheel (6) are connected with follow driving wheel (7) through conveyer belt (8) formation transmission connection, follow driving wheel (5) and scraper blade (3) form fixed connection, action wheel (6) are in the right side position of scraper blade (3), follow driving wheel (7) are in the right side position of scraper blade (7), follow driving wheel (6) are connected with power box (9), the circumferential side of the connecting rod (9) is provided with an auger blade (10), and the rotation directions of the auger blade (10) at the front side and the rear side are opposite.

2. The grader for tunnel construction according to claim 1, characterized in that a baffle (11) is provided on the upper side of the auger blade (10), the baffle (11) being connected with the scraper (3).

3. The grader for tunnel construction according to claim 2, wherein fixing rods (12) are arranged on the front side and the rear side of the scraper (3), the other ends of the fixing rods (12) extend into the connecting rods (9) and are in rotary connection with the connecting rods (9), and the stability of the connecting rods (9) is improved through the fixing rods (12).

4. A grader for tunnel construction according to claim 3, characterized in that the inside of the connecting rod (9) is provided with an extension piece (13), the extension piece (13) is located at a position between adjacent auger blades (10), sliding grooves (14) are formed in positions of two sides of the extension piece (13) inside the connecting rod (9), sliding blocks (15) are arranged in the sliding grooves (14), the sliding blocks (15) are connected with the extension piece (13), elastic pieces (16) are arranged in positions of the sliding grooves (14) outside the sliding blocks (15), two ends of the elastic pieces (16) are respectively connected with the outer side face of the sliding blocks (15) and the inner wall of the sliding grooves (14), one end, facing towards a fixed rod (12), of the extension piece (13) is fixedly provided with cam pieces (17), the circumferential side faces of the cam pieces (17) are in contact with the arc-shaped ends of the extension piece (13), and when the cam pieces (17) are in contact with the arc-shaped ends of the extension piece (13).

5. A grader for tunnel construction according to claim 4, wherein the orientation of adjacent protruding members (13) is reversed and the orientation of adjacent cam members (17) is reversed such that when the protruding ends of the cam members (17) contact the arcuate ends of the protruding members (13), the adjacent protruding members (13) protrude in opposite directions.

6. The grader for tunnel construction according to claim 5, wherein the sliding block (15) is in sealing and movable connection with the sliding groove (14), the side surface of the protruding part (13) located at the inner side position of the sliding block (15) is in sliding connection with the connecting rod (9), an overlapping part (18) is movably and hermetically arranged in the protruding part (13), and liquid guide holes (19) are formed in two sides of the overlapping part (18) in the protruding part (13) and are used for communicating a cavity of the protruding part (13) located at the inner side position of the overlapping part (18) with a cavity of the sliding groove (14) located at the outer side position of the sliding block (15).

7. The grader for tunnel construction according to claim 6, wherein the runner (14) is filled with a liquid medium in a cavity communicating with the inner cavity of the extension member (13) through the liquid guiding hole (19).