CN216866579U - Multi-cutter reaming device - Google Patents
Multi-cutter reaming device Download PDFInfo
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- CN216866579U CN216866579U CN202122778500.6U CN202122778500U CN216866579U CN 216866579 U CN216866579 U CN 216866579U CN 202122778500 U CN202122778500 U CN 202122778500U CN 216866579 U CN216866579 U CN 216866579U
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 238000005553 drilling Methods 0.000 description 13
- 229910052742 iron Inorganic materials 0.000 description 8
- 238000009412 basement excavation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 7
- 239000000346 nonvolatile oil Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 238000010276 construction Methods 0.000 description 6
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Abstract
The utility model provides a multiple knives reaming device, is applied to the occasion of downthehole high-efficient cutting, can be used to deep hole cutting, need not be with the help of main equipment, and a plurality of cutters can cut simultaneously, and convenient operation uses manpower sparingly, improves reaming efficiency. The device consists of an in-hole fixing system, a reaming depth feeding system, a cutter reducing system and a cutter system. The lower end of the in-hole fixing system is connected with a telescopic hydraulic oil cylinder, the telescopic hydraulic oil cylinder is connected with a rotating motor platform, and the rotating motor platform is connected with a cutter reducing system. The large plane supporting plate is tightly attached to the inner wall of the hole under the action of the hydraulic oil cylinder fixed in the hole, so that the whole device is stable. The reaming depth is determined by the feed hydraulic ram. The during operation is stretching under the electronic jar effect of sword, and the expansion action can be done downwards to cutter reducing system, and rotating electrical machines can make the cutter system of installing in the cutter plane backup pad begin the rotary cutting, and the reaming diameter can be by diameter displacement sensor real-time supervision.
Description
Technical Field
The utility model belongs to the field of foundation excavation of power transmission towers, relates to a foundation excavation and hole expanding technology of power transmission towers, and particularly relates to a multi-cutter hole expanding device which can realize efficient hole expanding and cutting of drilling holes without large-scale equipment and meet the technical requirements of foundation excavation of power transmission towers.
Background
The transmission tower is a main supporting unit for overhead transmission lines. It not only needs to carry heavy transmission wires from the ground at a sufficient safety height, but also can withstand various natural disasters. It is very sensitive to the inclination deformation and has high requirements on the uneven settlement of the foundation. The common structural form of the power transmission iron tower foundation comprises an independent foundation, an enlarged foundation and a pile foundation, and the structural form of the power transmission iron tower mainly adopts a steel structure. However, like some northern areas, coal mines are more and underground goafs exist. Therefore, the conventional transmission tower and the foundation structure are difficult to adapt to the ground surface movement of the goaf at present, and the transmission tower is possible to incline or even overturn. The original scheme is that a hole with the depth of 10 meters and the diameter of 1.8 meters is drilled from the ground to the underground to fix the foundation of the power transmission iron tower. In view of the above reasons, it is necessary to enlarge the original hole with a diameter of 1.8 m to a hole with a diameter of 2.4 m at a depth of about 8 m, and the depth of the hole is 2 m, so that the method of enlarging the bottom of the hole of the base to increase the diameter of the hole can increase the firmness of the iron tower base and prevent the iron tower from tipping over. The hole enlargement in the underground hole has a great technical problem, and the hole enlargement is mostly realized by large-scale hole enlarging equipment. However, most of power transmission towers are on the uphill side in the field, the terrain is complex, the environment is severe, and large-scale equipment is difficult to directly use. At present, the pile foundation of the power transmission iron tower is reamed by mostly adopting small-sized operation equipment such as a small excavator, a loader and the like, and equipment such as a Luoyang shovel and the like is refitted on the basis to realize pile foundation excavation and through a manual reaming mode. The manual excavation mode has hidden dangers such as efficiency and personnel safety, and therefore the equipment technology for reaming and excavating the transmission tower is urgently needed to be solved.
In order to solve the requirement of expanding underground holes, large equipment is mostly relied on, for example, Chinese patent invention with the publication number of CN 101315021B and publication date of 2011.11.02 discloses an automatic reducing and expanding drilling tool, when the drilling tool works, a reducing connecting rod mechanism needs to be opened by the action force of a large equipment drilling machine, a cutter is arranged on the connecting rod mechanism, and the cutting efficiency is not high. Similarly, the chinese patent with publication number CN 104763328B and publication number 2017.03.08 discloses a hydraulic reaming circulation drilling machine and a reaming pile construction process thereof, wherein a crane large-scale device is used for supporting a guide rail through a hydraulic column, a reaming tool is mounted on the guide rail, and a reaming bit is hydraulically driven to ream. Therefore, the method has to be carried out by large equipment such as cranes, drilling rigs and the like, and cannot be used in the reaming and cutting environment of the transmission tower.
Some prior arts do not use large-scale equipment, but the inside of the device has problems, for example, chinese patent with publication number CN 102003146B and publication number 2012.12.12 discloses a full hydraulic reamer, wherein incomplete gears are mounted at the inner ends of reamer wings, the gears are meshed with internal structural racks, the blades are opened by changing the displacement of a pump, although the large-scale equipment is not used, the device is complex in operation, and the pump pressure and the drilling pressure need to be controlled simultaneously to work normally. When the device is used, the device can fall into a plurality of limiting steel balls through pressure to normally work, when the device is finished, a steel ball needs to be put into a drill rod from the ground to plug an oil way, the inertia of the steel ball is large in a deep hole, if the steel ball is large, other parts and the device are easily damaged, the stability and the reliability of the whole device are affected, and therefore the device cannot normally work. Similarly, chinese patent application No. CN 104806170a, No. 2015.07.29 discloses a large reducing reaming bit for drilling coal, which can achieve reducing reaming, but has a complicated structure, requires strict control of different oil pressures to perform the operation, requires a steel ball for controlling the oil pressure to perform the operation, and is prone to malfunction. For example, chinese patent publication No. CN 107083923B, whose publication date is 2019.02.19, discloses a variable-diameter hole-enlarging drilling tool, in which the position of a cam is controlled by hydraulic oil, so as to open a hole-enlarging tool, but the drilling tool has a relatively complex structure and relatively high requirements, and the device includes a plurality of sealing rings, a piston, and a spring, and a diamond compact is embedded on a blade, which is easy to damage the tool and has high cost.
Most of existing underground hole reaming devices are large-scale devices and cannot meet application requirements of transmission towers, and therefore the multi-cutter reaming device can ream holes in established vertical holes, meets small-size excavation requirements of the transmission towers, can serve as an accessory and is suitable for construction of most of towers in northern China.
Disclosure of Invention
Aiming at the defects and shortcomings of the prior art, the utility model aims to provide a multi-cutter reaming device, which solves the problems that the prior art is complex in structure, small in cutter number of a reaming mechanism, low in cutting efficiency, and the like, and heavy equipment is needed. Particularly, when the hole is deep, it is difficult to achieve a high efficiency cutting effect.
In order to solve the problems, the utility model adopts the following technical scheme:
a multi-cutter reaming device comprises an in-hole fixing system, a reaming depth feeding system, a cutter reducing system and a cutter system.
The fixing system in the hole comprises a double-action single-piston-rod hydraulic oil cylinder, four large plane supporting plates, four large connecting rod shafts, a cross slide block, four small connecting rods and four small connecting rod shafts, wherein the cross slide block is connected with a piston rod of the hydraulic oil cylinder through a bolt, the small connecting rods are connected with the cross slide block through the small connecting rod shafts, and the small connecting rods are connected with the large plane supporting plates through the large connecting rod shafts.
The reaming depth feeding system comprises a telescopic hydraulic oil cylinder and a rotating motor platform, the telescopic hydraulic oil cylinder is a double-acting single-piston-rod hydraulic oil cylinder, a piston rod of the telescopic hydraulic oil cylinder is connected with the rotating motor platform through a bolt, the rotating motor is fixed on the rotating motor platform through a bolt, an electric brush is fixed on the rotating motor platform through a bolt, and a rotating motor shaft is connected with a cutter reducing system through a bolt, so that the rotating motor platform and the cutter reducing system are connected together, the telescopic hydraulic oil cylinder piston rod stretches to drive the rotating motor platform to move up and down integrally, and the rotating motor rotates positively to drive the cutter system to rotate.
Preferably, the cutter reducing system comprises an electric stretching cutter cylinder, a middle fixed disc, four cutter plane supporting plates, four cutter plane supporting plate connecting rods and a piston rod slider, wherein the piston slider is fixed on a piston rod of the electric stretching cutter cylinder, the cutter plane supporting plate connecting rods are respectively connected with the piston slider and the cutter plane supporting plates through hinges, slide rails on the cutter plane supporting plates are matched with slide rails on the middle fixed disc, and when the piston rod slider slides downwards, the cutter plane supporting plates slide out along the slide rails.
Preferably, the cutter system comprises four cutting tools and four retaining plates, each cutter plane supporting plate is provided with one cutter and one retaining plate, the cutting tools are fixed on the cutter plane supporting plates through bolts, each cutting tool comprises a first cutting edge and a second cutting edge, the first cutting edge of the first cutter is responsible for cutting two sides in a hole, the second cutting edge is responsible for cutting the bottom side in the hole, the first cutting edge and the second cutting edge complete a cutting task together, and the retaining plates are responsible for enabling soil cut by the cutting tools to fall down.
The depth displacement sensor is fixed on the lower plane plate of the in-hole fixing system through a bolt, and a probe of the depth displacement sensor contacts the upper plane plate of the rotating motor, so that the distance information extending downwards of the telescopic hydraulic oil cylinder can be monitored by the depth displacement sensor in real time, and the reaming depth information can be clearly known.
The diameter displacement sensor is fixed on an upper plane plate of the reducing system through a bolt, a probe of the diameter displacement sensor contacts with an initial position of a piston rod of the electric telescopic cutter cylinder, and axial distance information of the piston rod of the electric telescopic cutter cylinder is monitored in real time through the diameter displacement sensor, so that reamed diameter information is monitored in proportion, and a reaming effect is better known.
The utility model has the technical characteristics that:
the cutter system has a large number of cutters, complete functions and good cutting effect;
the cutter reducing system stretches out and retracts by means of stretching out and retracting of the cutter stretching electric cylinder, the action is rapid and reliable, and the stability is high;
the structure and the shape of the cutter system can be replaced and then the cutter system is arranged on the cutter plane supporting plate, so that multi-condition cutting and reaming are realized;
the fixing system in the hole is driven by a hydraulic oil cylinder, and the support is stable.
Compared with the prior art, the utility model has the beneficial technical effects that:
(1) the device has simple structure, does not need heavy equipment, can share energy with the existing equipment for iron tower construction, such as an excavator, can be used as an accessory, and meets the requirement of field excavation operation of the iron tower;
(2) the designed multi-cutter reaming device adopts an electric cylinder (or a hydraulic cylinder) for reducing, can meet the reaming requirements of different sizes, has controllable reaming shape, can adapt to various complex environments, and improves the reaming and cutting efficiency;
(3) the device is simple to operate, saves labor and reduces the potential safety hazard of personnel.
Drawings
FIG. 1 is a schematic view of a multi-tool reaming assembly according to the present invention;
FIG. 2 is a block diagram of the cutter reducing system of the present invention;
FIG. 3 is an expanded structural view of the cutter reducing system of the present invention;
FIG. 4 is a close-up view of the cutter reducing system of the present invention;
FIG. 5 is a block diagram of the cutter system of the present invention;
FIG. 6 is a structural view of an electric cylinder of the spreader knife of the present invention;
FIG. 7 is a block diagram of the in-hole fixation system of the present invention;
FIG. 8 is a structural view of the feed hydraulic ram of the present invention;
FIG. 9 is a view of the construction of the fixed hydraulic cylinder and the telescopic hydraulic cylinder in the hole of the present invention;
FIG. 10 is a block diagram of the rotary motor platform of the present invention;
FIG. 11 is a view showing the construction of the intermediate fixing disk of the present invention;
FIG. 12 is a plan support plate construction of the cutter of the present invention;
FIG. 13 is a block diagram of the depth displacement sensor of the present invention;
fig. 14 is a structural view of the diameter displacement sensor of the present invention.
The meaning of the reference symbols in the figures is: 1-an in-hole fixing system, 2-a feeding hydraulic oil cylinder, 3-a rotating motor platform, 4-an electric brush, 5-a cutter reducing system, 6-a cutter system, 7-a depth displacement sensor and 8-a diameter displacement sensor;
101-an upper plane plate, 102-a hydraulic oil cylinder fixed in a hole, 103-a platform connecting column, 104-a hydraulic oil cylinder piston rod fixed in a hole, 105-a large connecting rod shaft, 106-a small connecting rod shaft, 107-a lower plane plate, 108-a first oil cylinder oil inlet fixed in a hole, 109-a second oil cylinder oil inlet fixed in a hole, 1010-a connecting hard rod, 1011-a cross slide block, 1012-a small connecting rod and 1013-a large plane supporting plate;
201-an oil inlet A, 202-a telescopic hydraulic oil cylinder body, 203-an oil inlet B, 204-a telescopic hydraulic oil cylinder piston rod;
301-upper plane plate of rotating motor, 302-rotating motor, 303-platform connecting column of rotating motor, 304-lower plane plate of rotating motor, 305-fixed platform, 306-shaft of rotating motor;
4-an electric brush;
501-a diameter-changing system upper plane plate, 502-a cutter stretching electric cylinder, 503-a connecting column, 504-a cutter stretching electric cylinder piston rod, 505-a piston rod sliding block, 506-a rotating shaft I, 507-a cutter plane supporting plate connecting rod, 508-a rotating shaft II, 509-a cutter plane supporting plate and 510-a middle fixing disc;
5101-a T-shaped guide rail;
5901-rotating shaft support, 5902-U-shaped slide rail;
601-cutting tool, 602-retaining plate;
6101-main cutting edge, 6102-secondary cutting edge;
701-wiring port of depth displacement sensor, 702-measuring probe of depth displacement sensor;
801-diameter displacement sensor wiring port, 802-diameter displacement sensor measuring probe.
Detailed Description
The details of the present invention are explained in further detail below with reference to the drawings and examples. And are not intended to limit the scope of practice of the utility model. All equivalent changes made on the basis of the technical scheme of the application fall into the protection scope of the utility model.
Referring to fig. 1 to 14, which are an overall result diagram and a part structure diagram of the present invention, this example shows a multi-tool reaming device for realizing high-efficiency reaming and cutting of multiple tools in deep holes without using large-scale equipment. The device mainly comprises an in-hole fixing system 1, a telescopic hydraulic oil cylinder 2, a rotating motor platform 3, an electric brush 4, a cutter reducing system 5, a cutter system 6, a depth displacement sensor 7 and a diameter displacement sensor 8.
The in-hole fixing system 1 comprises an upper plane plate 101, an in-hole fixing hydraulic oil cylinder 102, a platform connecting column 103, an in-hole fixing hydraulic oil cylinder piston rod 104, a large connecting rod shaft 105, a small connecting rod shaft 106, a lower plane plate 107, an in-hole fixing oil cylinder oil inlet 108, an in-hole fixing oil cylinder oil inlet two 109, a connecting hard rod 1010, a cross slide block 1011, a small connecting rod 1012 and a large plane supporting plate 1013, wherein the working principle of the in-hole fixing hydraulic oil cylinder 102 is shown in figure 9, the switching of the in-hole fixing hydraulic oil cylinder oil circuit can be realized by operating a reversing valve, the P port of the reversing valve 1014 is connected with a hydraulic pump, the T port of 1014 is connected with an oil tank, the A port is connected with a rodless cavity of the in-hole fixing hydraulic oil cylinder, the B port is connected with a rod cavity of the in-hole fixing hydraulic oil cylinder, when the reversing valve 1014 is positioned at the right position, the P port of the reversing valve 1014 is communicated with the A port, the T port is communicated with the B port, when the hydraulic pump supplies oil, the bore-mounted hydraulic ram piston rod 104 extends downward and, when the reversing valve 1014 is in the left position, the port P of the reversing valve is communicated with the port B, the port T is communicated with the port A, when the hydraulic pump supplies oil, a piston rod 104 of the hydraulic oil cylinder fixed in the hole is retracted upwards, if the oil pressure of the whole hydraulic system exceeds the set oil pressure, the hydraulic oil flows back to the oil tank through the overflow safety valve 100, the upper plane plate 101 and the lower plane plate 107 are connected by a platform connecting column 103, the crosshead 1011 is connected with the piston rod 104 of the hydraulic oil cylinder fixed in the hole through a bolt to realize the up-and-down telescopic action of the crosshead 1011 along with the piston rod 104 of the hydraulic oil cylinder fixed in the hole, the small link 1012 is connected to the crosshead 1011 through the small link shaft 106, therefore, when the crosshead 1011 moves, the small link 1012 rotates around the small link shaft 106, the large plane support plate 1013 is connected by the large link shaft 105 and the small link 1012 to extend outward in response to the movement of the small link.
The telescopic hydraulic oil cylinder 2 comprises an oil inlet A201, a telescopic hydraulic oil cylinder body 202, an oil inlet B203 and a telescopic hydraulic oil cylinder piston rod 204, the telescopic hydraulic oil cylinder piston rod 204 is connected with a rotary motor platform 3 below through a bolt, the telescopic hydraulic oil cylinder 2 is a double-acting single-piston-rod hydraulic oil cylinder, the oil inlet A201 and the oil inlet B203 are respectively connected with oil pipes outside deep holes, the working principle is shown in figure 9, a port P of a reversing valve 205 is connected with a hydraulic pump, a port T of the reversing valve 205 is connected with an oil tank, the port A of the reversing valve 205 is connected with a rodless cavity of the telescopic hydraulic oil cylinder, a port B of the reversing valve 205 is connected with a rod cavity of the fixed hydraulic oil cylinder in the hole, when the reversing valve 205 is positioned at the right position, the port P of the reversing valve 205 is communicated with the port A, the port T is communicated with the port B, when the hydraulic pump supplies oil, the telescopic hydraulic oil cylinder piston rod 204 extends downwards, when the reversing valve 205 is positioned at the left position, the port is communicated with the port B, the T port is communicated with the A port, when the hydraulic pump supplies oil, a piston rod 204 of the telescopic hydraulic oil cylinder is retracted upwards, and if the oil pressure of the whole hydraulic system exceeds the set oil pressure, the hydraulic oil flows back to the oil tank through the overflow safety valve 100. When the reversing valve 205 is located at the right position, and oil is introduced into the oil inlet A201 of the telescopic hydraulic oil cylinder, the piston rod 204 of the telescopic hydraulic oil cylinder stably extends out, the oil returns to the oil tank through the oil inlet B203 of the telescopic hydraulic oil cylinder to push the lower whole body to extend downwards, and the lower cutter 601 gradually cuts and reams holes until the reaming depth reaches the preset depth. When the preset depth is reached, the oil supply of the oil inlet A201 is stopped, the oil supply of the oil inlet B203 is stopped, the piston rod 204 of the telescopic hydraulic oil cylinder is retracted upwards, the telescopic hydraulic oil cylinder 2 returns to the oil tank through the oil inlet A201 until the piston rod 204 is completely retracted, and the whole device returns to the initial position.
The rotary motor platform 3 comprises a rotary motor upper plane plate 301, a rotary motor 302, a rotary motor platform connecting column 303, a rotary motor lower plane plate 304, an electric brush 4, a fixed platform 305 and a rotary motor shaft 306, wherein the rotary motor 302 is fixed on the rotary motor lower plane plate 304 through a bolt, the rotary motor upper plane plate is connected with the rotary motor lower plane plate through the rotary motor platform connecting column 303, the electric brush 4 is fixed on the rotary motor upper plane plate 301 through a bolt so as to provide power for a knife extending electric cylinder motor 5201 of a knife reducing system 5, the fixed platform 305 is connected with the rotary motor shaft 306 through a bolt, the rotating motor shaft 307 is connected with the cutter diameter changing system 5 through a bolt, so that the cutter diameter changing system 5 and the cutter system 6 rotate around the fixed platform 305 together, the rotary motor platform 3, the electric brush 4, the cutter reducing system 5 and the cutter system 6 can move along with the extension and retraction of the telescopic hydraulic oil cylinder 2.
The cutter reducing system 5 comprises a reducing system upper plane plate 501, a cutter extending electric cylinder 502, a connecting column 503, a cutter extending electric cylinder piston rod 504, a piston rod sliding block 505, a rotating shaft I506, a cutter plane supporting plate connecting rod 507, a rotating shaft II 508, a cutter plane supporting plate 509 and a middle fixing disc 510, wherein the cutter extending electric cylinder 502 is fixed on the reducing system upper plane plate 501 through a bolt, the piston rod sliding block 505 is connected with the cutter extending electric cylinder piston rod 504 through a bolt to realize downward sliding along with the extension of the cutter extending electric cylinder piston rod 504, one end of the cutter plane supporting plate connecting rod 507 is connected with the piston rod sliding block 505 through the rotating shaft I506, the cutter plane supporting plate connecting rod 507 can rotate along with the rotating shaft I506, the other end is connected with the cutter plane supporting plate 509 through the rotating shaft II 508, and the cutter plane supporting plate connecting rod 507 can also realize rotation along with the rotating shaft II 508 through a rotating shaft support 5901, the middle fixed disc 510 is connected with the upper plane plate 501 of the reducing system through a connecting column 503, and the tool plane supporting plate 509 is matched with a T-shaped guide rail 5101 on the middle fixed disc 510 through a U-shaped slide rail 5902 on the tool plane supporting plate to realize sliding motion, so that when the extension tool electric cylinder piston rod 504 extends downwards, the tool plane supporting plate connecting rod 507 can push the tool plane supporting plate 509 to perform extension motion through the matching of the U-shaped slide rail 5902 on the tool plane supporting plate 509 and the T-shaped guide rail 5101 on the middle fixed disc 510.
The cutter system 6 comprises four cutting tools 601 and four retaining plates 602, each cutting tool 601 is fixed on a cutter plane supporting plate 509 through a bolt, each retaining plate 602 is welded on each cutter plane supporting plate 509, each cutting tool comprises a main cutting edge 6101 and an auxiliary cutting edge 6102, the main cutting edge 6101 is mainly responsible for soil layers on two sides in a cutting hole, the auxiliary cutting edge 6102 is responsible for soil layers on the inner bottom side of the cutting hole and also assists the cutting of the main cutting edge 6101, and the retaining plates 602 are responsible for enabling the cut soil to fall down smoothly to avoid influencing the cutting work of the cutters.
The depth displacement sensor 7 is fixed on the lower plane plate 107 of the hole internal fixing system 1 through bolts, one end 701 of the depth displacement sensor 7 is connected with a wire, the other end 702 of the depth displacement sensor 7 is in contact with the upper plane plate 301 of the rotating motor, and therefore distance information extending downwards of the telescopic oil cylinder can be monitored by the depth displacement sensor 7 in real time, and reaming depth information can be clearly known.
When the device of the present invention is in use,
firstly, drilling holes by using a drilling machine, wherein the drilling depth is deeper than the required depth, and in order to make the soil subjected to reaming and cutting fall down, an external device is used for placing the device into a preset position where a deep hole is drilled and the hole needs to be reamed by connecting a hard rod 1010;
a second step; oil is led into the second oil inlet 109 of the fixed oil cylinder in the hole, the oil pressure is obtained according to G being 4 muPA, wherein G is the weight of the whole device, A is the cross-sectional area of the piston rod 104 of the fixed oil cylinder in the hole, and muP is the friction coefficient under the condition, so that the piston rod 104 of the fixed oil cylinder in the hole is pushed to extend downwards under the push of high-pressure oil, the cross-shaped sliding block 1011 is extended to push the four small connecting rods 1012 to move downwards obliquely, the four small connecting rods 1012 respectively push the four large plane supporting plates 1013 to extend outwards to do unfolding action, when the piston rod 104 of the fixed oil cylinder in the hole reaches the limit position, the four large plane supporting plates 1013 form a complete plane ring which is tightly attached to the inner wall in the hole to bear larger load action, the whole device is fixed at a certain position, the high-pressure oil needs to be led into the fixed oil cylinder 102 in the hole through the second oil inlet 109 of the fixed oil cylinder in the hole uninterruptedly, oil returns to the oil tank 108 through the oil inlet I of the fixed oil cylinder in the hole;
thirdly, the rotating motor 302 is started, the cutter reducing system 5 and the cutter system 6 start to rotate around the fixed platform 305, furthermore, oil is continuously introduced into an oil inlet A201 of the telescopic hydraulic oil cylinder 2, a piston rod 204 of the telescopic hydraulic oil cylinder stably extends downwards, the electric stretching cutter cylinder 502 is started, a piston rod 504 of the electric stretching cutter cylinder extends out, the piston rod 504 of the electric stretching cutter cylinder extends out to push the plane supporting plate 509 to extend outwards along a T-shaped guide rail 5101 of a middle fixed disc, the cutting cutter 601 rotates along with the plane supporting plate 509, the soil retaining plate 602 assists in expanding and cutting soil to fall into a drilled deep hole, and the expanding depth is increased along with the extension of the piston rod 204 of the telescopic hydraulic oil cylinder;
fourthly, when the reaming depth reaches the specified requirement, the electric extension knife cylinder motor 5201 is reversed, the electric extension knife cylinder piston rod 504 retracts upwards, the knife plane support plate connecting rod 507 rotates inwards along with the second rotating shaft 508, the knife plane support plate 509 retracts inwards along with the action of the knife plane support plate connecting rod 507, the telescopic hydraulic cylinder piston rod 204 also extends completely, the rotating motor 302 is closed, meanwhile, oil is introduced into the oil inlet B203 of the telescopic cylinder, the oil returns to the oil tank through the oil inlet A201, so that the whole device moves upwards along with the retraction of the telescopic hydraulic cylinder piston rod 204, when the piston rod 204 retracts completely, the oil supply to the telescopic cylinder 2 is stopped, at this time, the oil is introduced into the first oil inlet 108 of the fixed cylinder in the hole, the oil returns to the oil tank through the second oil inlet 109 of the fixed cylinder in the hole, and the piston rod 104 of the fixed hydraulic cylinder in the hole gradually retracts, the cross slider 1011 retracts, the four small connecting rods 1012 retract obliquely upward, the four large plane supporting plates 1013 return to the original state with the retraction of the small connecting rods 1012, when the hydraulic cylinder piston rod 104 fixed in the hole retracts completely, all the components return to the original state, and at this time, the set motion is completed by connecting the hard rod 1010 retraction device.
It should be noted that the above-mentioned embodiments illustrate rather than limit the technical solutions of the present invention, and that equivalent substitutions and other modifications made by those skilled in the art according to the prior art are included in the claims and the scope of the present invention without departing from the spirit and scope of the technical solutions of the present invention.
Claims (2)
1. A multi-cutter reaming device is characterized by comprising a cutter reducing system and a cutter system; cutter reducing system (5) are including reducing system last plane board (501), stretch sword electronic cylinder (502), spliced pole (503), stretch sword electronic cylinder piston rod (504), piston rod slider (505), pivot one (506), cutter plane backup pad connecting rod (507), pivot two (508), cutter plane backup pad (509), middle fixed disc (510), stretch sword electronic cylinder (502) and pass through the bolt fastening and be in reducing system is last plane board (501), the one end of cutter plane backup pad connecting rod (507) is connected with piston rod slider (505) through pivot one (506), can realize that cutter plane backup pad connecting rod (507) rotates along with pivot one (506), and the other end is connected with cutter plane backup pad (509) through pivot two (508), also can realize rotating along with pivot two (508), cutter plane backup pad (509) leads through the T shape on U-shaped slide rail (5902) and the middle fixed disc (510) on the cutter plane backup pad The rail (5101) is matched to realize sliding action; the cutter system (6) comprises four cutting tools (601) and four retaining plates (602), wherein each cutting tool (601) is fixed on a cutter plane supporting plate (509) through a bolt, each retaining plate (602) is welded on each cutter plane supporting plate (509), each retaining plate (602) is responsible for enabling the cut soil to fall down smoothly, the cutting work of the cutters is avoided being influenced, each cutting tool comprises a main cutting edge (6101) and an auxiliary cutting edge (6102), the main cutting edge (6101) is mainly responsible for soil layers on two sides in a cutting hole, and the auxiliary cutting edge (6102) is responsible for soil layers on the inner bottom side of the cutting hole and also assists the cutting of the main cutting edge (6101).
2. The multiple tool reaming device according to claim 1, wherein the tool extension electric cylinder (502) drives the tool reducing system (5) to expand and retract.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122778500.6U CN216866579U (en) | 2021-11-12 | 2021-11-12 | Multi-cutter reaming device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122778500.6U CN216866579U (en) | 2021-11-12 | 2021-11-12 | Multi-cutter reaming device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216866579U true CN216866579U (en) | 2022-07-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122778500.6U Expired - Fee Related CN216866579U (en) | 2021-11-12 | 2021-11-12 | Multi-cutter reaming device |
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| Country | Link |
|---|---|
| CN (1) | CN216866579U (en) |
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2021
- 2021-11-12 CN CN202122778500.6U patent/CN216866579U/en not_active Expired - Fee Related
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