CN217896606U - A hook horn for tunnel construction - Google Patents
A hook horn for tunnel construction Download PDFInfo
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- CN217896606U CN217896606U CN202221643892.3U CN202221643892U CN217896606U CN 217896606 U CN217896606 U CN 217896606U CN 202221643892 U CN202221643892 U CN 202221643892U CN 217896606 U CN217896606 U CN 217896606U
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Abstract
The utility model discloses a hook horn for tunnel construction, include: the scarifier comprises a big arm, a small arm, a scarifier, a bucket rod oil cylinder and a bucket oil cylinder; the rear end of the large arm is hinged to the excavator frame, the rear end of the small arm 4 is hinged to the front end of the large arm, and the rear end of the scarifier is hinged to the front end of the small arm; an oil cylinder is connected between the frame and the large arm 1, the small arm and the large arm are connected with a bucket rod oil cylinder, and the scarifier and the small arm are connected with a bucket oil cylinder; the scarifier is provided with upper teeth and lower teeth, and the upper teeth and the lower teeth are distributed in a splayed shape. The device of the utility model expands the operation range to the upper part and the front part of the excavator; when the upper teeth of the scarifier face the top of the tunnel, the upper teeth can carry out excavation construction on the top of the tunnel, and the lower teeth can carry out excavation construction on the front side or the top of the side wall of the tunnel; the integrated fork plate can ensure that the oil cylinder is uniformly stressed at the pin shaft; through setting up fishtail form reinforcing plate, dispersion stress that can be fine guarantees structural strength.
Description
Technical Field
The utility model belongs to engineering machine tool equipment field relates to excavator hook horn manufacturing and designing, specifically is a hook horn for tunnel construction.
Background
Since the innovation is open, china has made remarkable achievement in the field of infrastructures such as transportation, water conservancy and hydropower, municipal administration and underground engineering development and utilization, and particularly has made sudden and violent development in recent decades, wherein railway tunnels, highway tunnels, water conservancy and hydropower tunnels, municipal common ditches and urban subways have made unprecedented development, and meanwhile, the design and construction technical level is greatly improved.
CN208792389U discloses an excavator boom, including: linking arm, big arm, damping device and be used for the increase to lift angle and improve the integrative fork mouth board of self intensity, the linking arm links to each other with big arm, be provided with damping device between linking arm and the big arm, integrative fork mouth board sets up on big arm, integrative fork mouth board is including lifting hole and front end connecting hole. This patent makes the vibrations of excavator when the operation obtain abundant reduction, has improved the bulk strength of big arm, and the lifting hole height is higher than the top of big arm, has increased the angle of lifting of excavator, has increased the operating efficiency, has reduced the loss of excavator, has increased the reliability of excavator. However, for excavation construction in a tunnel, in the current engineering machinery industry, the tunnel construction methods mainly include an open excavation method, a closed excavation method, a shield method, a tunneling method and the like. The shield tunneling method requires a special tunnel boring machine and a special tunnel shield tunneling machine, and has high equipment requirement and high equipment installation and transportation cost; the traditional common construction equipment has large dust excavation amount and high noise. Along with the improvement of environmental protection, safety requirement, traditional construction can't satisfy the construction requirement under certain operating mode, consequently novel, high-efficient, strong, environmental protection, safe, economic excavation tunnel arm need urgently to research and develop.
Disclosure of Invention
The application provides an efficient excavating equipment for tunnel construction aiming at the defects of the existing excavating equipment in tunnel construction.
The technical scheme of the utility model is that:
a hook horn for tunnel construction, comprising: the excavator comprises a large arm 1, a small arm 4, a scarifier 9, a bucket rod oil cylinder 3 and a bucket oil cylinder 6; the rear end of the large arm 1 is hinged to a rack of the excavator, the rear end of the small arm 4 is hinged to the front end of the large arm 1, and the rear end of the scarifier 9 is hinged to the front end of the small arm 4; an oil cylinder 11 is connected between the frame and the large arm 1, a bucket rod oil cylinder 3 is connected between the small arm 4 and the large arm 1, and a bucket oil cylinder 6 is connected between the scarifier 9 and the small arm 4; the ripper 9 is provided with upper teeth 901 and lower teeth 902, and the upper teeth 901 and the lower teeth 902 are distributed in a shape like a Chinese character 'ba'.
The bucket rod oil cylinder 3 is installed above the large arm 1, namely, the installation hole of the bucket rod oil cylinder 3 is located above the large arm.
And the bucket rod oil cylinder 3 is arranged below the large arm 1, namely, the mounting hole of the bucket rod oil cylinder 3 is positioned below the large arm.
The bucket cylinder 6 is mounted above the small arm 4.
The bucket cylinder 6 is mounted below the arm 4.
A crank rocker mechanism is arranged between the scarifier 9 and the bucket cylinder 6, the crank rocker mechanism comprises a part which takes a pull rod 16 as a crank, an H connecting rod 15 as a connecting rod, the scarifier 9 as a rocker and a small arm 4 as a frame, one end of the pull rod 16 and one end of the H connecting rod 15 are both hinged with the front end of the bucket cylinder 6, the other end of the pull rod 16 is hinged with the small arm 4, and the other end of the H connecting rod 15 is hinged with the scarifier.
Big arm 1 is the fork formula with forearm connecting portion, and the hinge hole of big arm 1 and hydro-cylinder 11 and the hinge hole setting of big arm 1 and forearm 4 are on the fork board 101 of integral type.
A fishtail-shaped reinforcing plate 102 is arranged on the outer side of the fork opening plate 101.
The utility model has the advantages of that:
1. the working range of a general excavator is below the front part of the excavator, and the device of the utility model extends the working range to the upper part and the front part of the excavator. When the large arm is kept parallel to the ground, the bucket rod oil cylinder 3 is in a retraction state, the small arm is positioned above the large arm at the moment, namely the hinge point 10 is positioned above a connecting line of the hinge point 8 and the hinge point 14, one tooth of the scarifier faces the top of the tunnel, the other tooth of the scarifier faces the front, the upper tooth can carry out excavation construction on the top of the tunnel, and the lower tooth can carry out excavation construction on the front of the tunnel; when the bucket rod oil cylinder extends out, effective excavation on the front side or the ground of the tunnel can be realized by matching with the action of the bucket oil cylinder, and forward ordered excavation can be realized by matching with the crawler of the excavator.
2. Two teeth are arranged on the ripper blade and are fixed on the ripper blade in a splayed shape; different construction conditions in the tunnel can be met by matching the actions of the big arm and the small arm.
3. When the bucket rod oil cylinder is arranged above the large arm, the power is high, and the tunneling efficiency on a hard rock stratum is high; when the bucket rod oil cylinder is arranged below the large arm, the oil cylinder is not easy to damage, and an operator has a better visual field and is favorable for fine operation.
4. The design of the integrated fork opening plate on the large arm can ensure the stress of the oil cylinder at the pin shaft and also can take into account the integral strength of the large arm.
5. The fishtail-shaped reinforcing plate is arranged outside the integrated fork plate in a covering mode, the stress of the integrated fork plate can be well dispersed and reduced, the contact surface of the pin shaft is increased, and therefore the structural strength of the fork opening of the large arm 1 and the stress strength of the pin shaft can be guaranteed.
6. When the rock stratum hardness is lower, through set up crank rocker mechanism between agitator and scraper bowl hydro-cylinder, can realize enlarging the operating range of agitator, improve the efficiency of construction.
Drawings
FIG. 1 is a schematic structural view of the utility model;
fig. 2 is a schematic structural view of the bucket rod cylinder and the bucket cylinder of the present invention installed below the big arm and the small arm;
FIG. 3 is a schematic structural view of the bucket rod cylinder being mounted above the boom and the bucket cylinder being mounted below the boom of the present invention;
FIG. 4 is a schematic view of the bucket rod cylinder installed below the boom and the bucket cylinder installed above the boom according to the present invention;
FIG. 5 is a schematic view of the construction of the large arm;
FIG. 6 is a schematic structural view of the ripper;
FIG. 7 is a schematic diagram of a crank and rocker mechanism disposed between the ripper and the bucket cylinder;
in the figure: the excavator comprises a large arm 1, a bucket rod oil cylinder 3, a small arm 4, a bucket oil cylinder 6, a scarifier 9, an oil cylinder 11, an H connecting rod 15 and a pull rod 16; hinge point 2, hinge point 5, hinge point 7, hinge point 8, hinge point 10, hinge point 12, hinge point 13, hinge point 14; upper teeth 901 and lower teeth 902, on the fork plate 101, a fishtail reinforcement plate 102.
Detailed Description
The invention will be further explained and explained with reference to the drawings attached to the specification.
Example 1
As a preferred embodiment of the present application, refer to fig. 1:
the utility model relates to a hook horn for tunnel construction, include: the rear end of the large arm 1 is hinged to a rack of the excavator, the rear end of the small arm 4 is hinged to the front end of the large arm 1, and the rear end of the scarifier 9 is hinged to the front end of the small arm 4; an oil cylinder 11 is connected between the frame and the large arm 1, the small arm 4 and the large arm 1 are connected with a bucket rod oil cylinder 3, and the scarifier 9 and the small arm 4 are connected with a bucket oil cylinder 6; the ripper 9 is provided with upper teeth 901 and lower teeth 902, and the upper teeth 901 and the lower teeth 902 are distributed in a shape like a Chinese character 'ba'.
The articulated point 8 of forearm 4 rear end and big arm 1 front end, pin joint 10 of scarifier 9 rear end and forearm 4 front end, pin joint 12 between big arm 1 and hydro-cylinder 11, pin joint 13 between forearm 4 and arm hydro-cylinder 3, pin joint 2 between big arm 1 and arm hydro-cylinder 3, pin joint 7 between scarifier 9 and bucket hydro-cylinder 6, pin joint 5 between forearm 4 and bucket hydro-cylinder 6, pin joint 14 of big arm 1 and big arm frame, the pin joint of above-mentioned each part is connected through the round pin axle mode.
The boom 4 is provided above the boom 1, and the range of operation of the boom includes an upper portion, a front portion, and a lower portion in front of the excavator. When the large arm 1 is kept parallel to the ground, the arm cylinder 3 is in a retraction state, the small arm 4 is positioned above the large arm 1, namely the hinge point 10 is positioned above the connecting line of the hinge point 8 and the hinge point 14, the upper tooth 901 of the scarifier faces the top of the tunnel, the lower tooth 902 of the scarifier 9 faces the right front part, so that the upper tooth 901 can carry out excavation construction on the top of the tunnel, and the lower tooth 902 can carry out excavation construction on the front side of the tunnel or the ground;
when the bucket rod oil cylinder 3 extends out, the upper teeth 901 can also realize effective excavation of the right front part of the tunnel or the ground by matching with the action of the bucket oil cylinder 6, and forward ordered excavation can be realized by matching with the crawler of the excavator.
Example 2
As a preferred embodiment of the present application, refer to fig. 2.
The utility model relates to a hook horn for tunnel construction, include: the excavator comprises a large arm 1, a small arm 4, a scarifier 9, a bucket rod oil cylinder 3 and a bucket oil cylinder 6; the rear end of the large arm 1 is hinged on a rack of the excavator, the rear end of the small arm 4 is hinged at the front end of the large arm 1, and the rear end of the scarifier 9 is hinged at the front end of the small arm 4; an oil cylinder 11 is connected between the frame and the large arm 1, the small arm 4 and the large arm 1 are connected with a bucket rod oil cylinder 3, and the scarifier 9 and the small arm 4 are connected with a bucket oil cylinder 6; the ripper 9 is provided with upper teeth 901 and lower teeth 902, and the upper teeth 901 and the lower teeth 902 are distributed in a shape like a Chinese character 'ba'. The components are mainly connected in a pin shaft mode and the like.
The bucket rod oil cylinder 3 is arranged below the large arm 1, and the bucket oil cylinder 6 is arranged below the small arm 4; the small arm working range comprises the upper part, the front part and the lower part in front of the excavator; when the boom is kept parallel to the ground and the arm cylinder 3 is in a retracted state, the hinge point 10 is located above the connection line of the hinge point 8 and the hinge point 14, the upper tooth 901 of the scarifier 9 faces the front, the lower tooth 902 of the scarifier 9 faces the top, and by matching with the extension and retraction of the bucket cylinder 6, the upper tooth 901 of the scarifier 9 can carry out excavation construction on the front or the ground of the tunnel, and the lower tooth 902 can carry out excavation construction on the top of the tunnel.
Arm cylinder 3 installs in big arm 1 below, and when big arm 1 kept parallel with ground, arm cylinder 3 was when stretching out the state, forearm 4 was towards big arm 1 side top this moment, and tooth 902 was gone up to ripper 9 was towards the top, and ripper 9 is lower tooth 901 and is towards the dead ahead, and cooperation scraper bowl cylinder 6 is flexible, and ripper 9 can be around pin joint 10 rotation, can realize the effective excavation to tunnel top or dead ahead and ground, and the crawler travel of cooperation excavator can realize the orderly tunnelling in tunnel.
Example 3
As a preferred embodiment of the present application, refer to fig. 3.
The utility model relates to a hook horn for tunnel construction, include: the rear end of the large arm 1 is hinged to a rack of the excavator, the rear end of the small arm 4 is hinged to the front end of the large arm 1, and the rear end of the scarifier 9 is hinged to the front end of the small arm 4; an oil cylinder 11 is connected between the frame and the large arm 1, the small arm 4 and the large arm 1 are connected with a bucket rod oil cylinder 3, and the scarifier 9 and the small arm 4 are connected with a bucket oil cylinder 6; the ripper 9 is provided with upper teeth 901 and lower teeth 902, and the upper teeth 901 and the lower teeth 902 are distributed in a shape like a Chinese character 'ba'.
The articulated point 8 of forearm 4 rear end and big arm 1 front end, pin joint 10 of scarifier 9 rear end and forearm 4 front end, pin joint 12 between big arm 1 and hydro-cylinder 11, pin joint 13 between forearm 4 and arm hydro-cylinder 3, pin joint 2 between big arm 1 and arm hydro-cylinder 3, pin joint 7 between scarifier 9 and bucket hydro-cylinder 6, pin joint 5 between forearm 4 and bucket hydro-cylinder 6, pin joint 14 of big arm 1 and big arm frame, the pin joint of above-mentioned each part is connected through the round pin axle mode.
The bucket rod oil cylinder 3 is arranged above the large arm 1, and the bucket oil cylinder 6 is arranged below the small arm 4; the range of the boom work includes an upper portion, a front portion, and a lower portion in front of the excavator. When the large arm 1 is kept parallel to the ground, the arm cylinder 3 is in a retraction state, the small arm 4 is positioned above the large arm 1, namely the hinge point 10 is positioned above the connection line of the hinge point 8 and the hinge point 14, the upper tooth 901 of the scarifier faces to the front of the tunnel, the lower tooth 902 of the scarifier 9 faces to the top, so that the upper tooth 901 can carry out excavation construction on the front of the tunnel or the ground, and the lower tooth 902 can carry out excavation construction on the top of the tunnel;
when the arm cylinder 3 extends out, the lower tooth 902 can also realize effective excavation right in front of the tunnel or on the ground by matching with the action of the bucket cylinder 6, and forward ordered excavation can be realized by matching with the crawler travel of the excavator.
Example 4
As a preferred embodiment of the present application, refer to fig. 4.
The utility model relates to a hook horn for tunnel construction, include: the rear end of the large arm 1 is hinged to a rack of the excavator, the rear end of the small arm 4 is hinged to the front end of the large arm 1, and the rear end of the scarifier 9 is hinged to the front end of the small arm 4; an oil cylinder 11 is connected between the frame and the large arm 1, the small arm 4 and the large arm 1 are connected with a bucket rod oil cylinder 3, and the scarifier 9 and the small arm 4 are connected with a bucket oil cylinder 6; the ripper 9 is provided with upper teeth 901 and lower teeth 902, and the upper teeth 901 and the lower teeth 902 are distributed in a shape like a Chinese character 'ba'.
The articulated point 8 of forearm 4 rear end and big arm 1 front end, pin joint 10 of scarifier 9 rear end and forearm 4 front end, pin joint 12 between big arm 1 and hydro-cylinder 11, pin joint 13 between forearm 4 and arm hydro-cylinder 3, pin joint 2 between big arm 1 and arm hydro-cylinder 3, pin joint 7 between scarifier 9 and bucket hydro-cylinder 6, pin joint 5 between forearm 4 and bucket hydro-cylinder 6, pin joint 14 of big arm 1 and big arm frame, the pin joint of above-mentioned each part is connected through the round pin axle mode.
The bucket rod oil cylinder 3 is arranged below the large arm 1, and the bucket oil cylinder 6 is arranged above the small arm 4; the range of the boom work includes the upper part, the front part and the lower part in front of the excavator. When the large arm 1 is kept parallel to the ground, the arm cylinder 3 is in a retraction state, the small arm 4 is positioned above the large arm 1, namely the hinge point 10 is positioned above a connecting line of the hinge point 8 and the hinge point 14, the upper tooth 901 of the scarifier faces the top of the tunnel, the lower tooth 902 of the scarifier 9 faces the right front part, so that the lower tooth 902 can carry out excavation construction on the right front part of the tunnel or the ground, and the upper tooth 901 can carry out excavation construction on the top of the tunnel;
when the bucket rod oil cylinder 3 extends out, the upper teeth 901 can also realize effective excavation of the right front part of the tunnel or the ground by matching with the action of the bucket oil cylinder 6, and forward ordered excavation can be realized by matching with the crawler of the excavator.
Example 5
See fig. 1 to 6, the utility model relates to a hook horn for tunnel construction, include: the excavator comprises a large arm 1, a small arm 4, a scarifier 9, a bucket rod oil cylinder 3 and a bucket oil cylinder 6; the rear end of the large arm 1 is hinged to a rack of the excavator, the rear end of the small arm 4 is hinged to the front end of the large arm 1, and the rear end of the scarifier 9 is hinged to the front end of the small arm 4; an oil cylinder 11 is connected between the frame and the large arm 1, the small arm 4 and the large arm 1 are connected with a bucket rod oil cylinder 3, and the scarifier 9 and the small arm 4 are connected with a bucket oil cylinder 6; the ripper 9 is provided with an upper tooth 91 and a lower tooth 92, and the upper tooth 901 and the lower tooth 902 are distributed in a splayed shape.
Big arm 1 is the fork formula with forearm connecting portion, and the hinge hole of big arm 1 and hydro-cylinder 11 and the hinge hole setting of big arm 1 and forearm 4 are on the fork mouth board 101 of integral type, and fork mouth board 101 is a holistic steel sheet promptly. The integral fork plate big arm can not only ensure the stress of the oil cylinder 11 at the pin shaft 12, but also give consideration to the integrity of the big arm; the integral type fork board 101 outside covers there is fishtail form reinforcing plate 102, and the stress of integral type fork board 101 is split in the dispersion that above-mentioned fishtail reinforcing plate 102 can be fine and reduced to can guarantee the structural strength of 1 fork of big arm.
The integral type fork board 101 outside covers there is fishtail form reinforcing plate 102, and the stress of integral type fork board 101 is split in the dispersion that above-mentioned fishtail reinforcing plate 102 can be fine and reduced to can guarantee the structural strength of 1 fork of big arm.
Example 6
See fig. 1 to 6, the utility model relates to a hook horn for tunnel construction, include: the excavator comprises a large arm 1, a small arm 4, a scarifier 9, a bucket rod oil cylinder 3 and a bucket oil cylinder 6; the rear end of the large arm 1 is hinged on a rack of the excavator, the rear end of the small arm 4 is hinged at the front end of the large arm 1, and the rear end of the scarifier 9 is hinged at the front end of the small arm 4; an oil cylinder 11 is connected between the frame and the large arm 1, the small arm 4 and the large arm 1 are connected with a bucket rod oil cylinder 3, and the scarifier 9 and the small arm 4 are connected with a bucket oil cylinder 6; the ripper 9 is provided with an upper tooth 901 and a lower tooth 902, and the upper tooth 901 and the lower tooth 902 are distributed in a splayed shape. The ripper 9 comprises an upper tooth 901, a lower tooth 902, an ear plate 903, a blade 904 and a side plate 905; the ear plate 903, the side plate 905 and the cutting plate 904 can be formed into a whole by welding; the front of the knife board 904 is provided with a lower tooth 902, the lower tooth 902 rotates a certain angle in the counterclockwise direction and is provided with an upper tooth 901, and the lower tooth 902 and the upper tooth 901 are fixedly connected on the knife board 904. The angle between the upper tooth 901 and the lower tooth 902 is 80 to 120 degrees.
The upper teeth 901 and the lower teeth 902 arranged on the ripper blade are welded on the ripper blade in a splayed shape; the upper teeth 901 are slightly bent backwards, and are matched with the expansion and contraction of the oil cylinder to drive the large arm and the small arm to act, so that the upper teeth 901 can be used for implementing favorable excavation construction on the top of the tunnel;
when the tunnel is in the right front direction, the lower teeth 902 are slightly bent downwards and drive the large arm and the small arm to act in cooperation with the stretching of the oil cylinder, and the upper teeth 901 can implement favorable excavation construction for the front of the tunnel;
when facing the ground, the lower tooth 902 is slightly bent backwards, and the upper tooth 901 can perform favorable excavation work on the bottom of the tunnel in cooperation with the action of the big and small arms.
Example 7
See fig. 1-4, fig. 7, the utility model relates to a hook horn for tunnel construction, include: the excavator comprises a large arm 1, a small arm 4, a scarifier 9, a bucket rod oil cylinder 3, a bucket oil cylinder 6, a pull rod 16 and an H connecting rod 15; the rear end of the large arm 1 is hinged to a rack of the excavator, the rear end of the small arm 4 is hinged to the front end of the large arm 1, and the rear end of the scarifier 9 is hinged to the front end of the small arm 4; an oil cylinder 11 is connected between the frame and the large arm 1, the small arm 4 and the large arm 1 are connected with a bucket rod oil cylinder 3, and the scarifier 9 and the small arm 4 are connected with a bucket oil cylinder 6; the scarifier 9 is provided with upper teeth 901 and lower teeth 902, and the upper teeth 901 and the lower teeth 902 are distributed in a splayed shape; a crank and rocker mechanism is arranged between the scarifier 9 and the bucket cylinder 6, the crank and rocker mechanism comprises a part which takes a pull rod 16 as a crank, an H connecting rod 15 as a connecting rod, the scarifier 9 as a rocker and a small arm 4 as a frame, one end of the pull rod 16 and one end of the H connecting rod 15 are both hinged with the front end of the bucket cylinder 6, the other end of the pull rod 16 is hinged with the small arm 4, and the other end of the H connecting rod 15 is hinged with the scarifier; the pull rod 16 can rotate around a hinged point of the small arm, the bucket cylinder 6 pushes the pull rod 16 to rotate around a hinged point, the pull rod 16 drives the H connecting rod 15 to move forwards and rotate around the hinged point, the H connecting rod 15 drives the scarifier 9 to rotate around the hinged point 10, and in simple reciprocating motion of the bucket cylinder 6, the crank-rocker mechanism converts motion of the bucket cylinder 6 into composite motion of the H connecting rod 15 and pushes the scarifier 9 to realize large-range reciprocating rotation.
When the rock stratum hardness is lower, through setting up crank rocker mechanism, can enlarge the operating range of agitator, improve the efficiency of construction.
In the present application, the "tunnel construction" is an example and is a main application scene thereof, but this is not a limitation of the present application, and the excavator hook tool of the present application may be used for construction in other places.
Claims (8)
1. A hook horn for tunnel construction, comprising: the hydraulic shovel comprises a large arm (1), a small arm (4), a scarifier (9), a bucket rod oil cylinder (3) and a bucket oil cylinder (6); the rear end of the large arm (1) is hinged to a rack of the excavator, the rear end of the small arm (4) is hinged to the front end of the large arm (1), and the rear end of the scarifier (9) is hinged to the front end of the small arm (4); an oil cylinder (11) is connected between the frame and the large arm (1), a bucket rod oil cylinder (3) is connected between the small arm (4) and the large arm (1), and a bucket oil cylinder (6) is connected between the scarifier (9) and the small arm (4); the scarifier (9) is provided with upper teeth (901) and lower teeth (902), and the upper teeth (901) and the lower teeth (902) are distributed in a splayed shape.
2. A hook arm for tunnel construction according to claim 1, characterized in that the arm cylinder (3) is mounted above the boom (1), i.e. the arm cylinder (3) mounting hole is above the boom.
3. The hooking arm for tunnel construction according to claim 1, wherein the arm cylinder (3) is installed below the boom (1), that is, the arm cylinder (3) installation hole is located below the boom.
4. A hooking arm for tunnel construction according to claim 1, characterised in that the bucket cylinder (6) is mounted above the small arm (4).
5. A hooking arm for tunnel construction according to claim 1, characterised in that the bucket cylinder (6) is mounted under the small arm (4).
6. The hook arm for tunnel construction according to any one of claims 1-5, wherein a crank and rocker mechanism is arranged between the scarifier (9) and the bucket cylinder (6), the crank and rocker mechanism comprises a part which takes the pull rod (16) as a crank, the H connecting rod (15) as a connecting rod, the scarifier (9) as a rocker and the small arm (4) as a frame, one end of each of the pull rod (16) and the H connecting rod (15) is hinged with the front end of the bucket cylinder (6), the other end of the pull rod (16) is hinged with the small arm (4), and the other end of the H connecting rod (15) is hinged with the scarifier.
7. The mechanical coupler arm for tunnel construction according to claim 1, wherein the connecting portion of the large arm (1) and the small arm is in a fork type, and a hinge point of the large arm (1) and the oil cylinder (11) and a hinge point of the large arm (1) and the small arm (4) are arranged on the integrated fork plate (101).
8. A hook arm for tunnel construction according to claim 7, characterized in that the outer side of the fork plate (101) is provided with a fishtail reinforcement plate (102).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221643892.3U CN217896606U (en) | 2022-06-29 | 2022-06-29 | A hook horn for tunnel construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221643892.3U CN217896606U (en) | 2022-06-29 | 2022-06-29 | A hook horn for tunnel construction |
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| Publication Number | Publication Date |
|---|---|
| CN217896606U true CN217896606U (en) | 2022-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221643892.3U Active CN217896606U (en) | 2022-06-29 | 2022-06-29 | A hook horn for tunnel construction |
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| Country | Link |
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| CN (1) | CN217896606U (en) |
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- 2022-06-29 CN CN202221643892.3U patent/CN217896606U/en active Active
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