An integrated anchor and excavation machine

Abstract

The application discloses a digging-anchor integrated machine and belongs to the technical field of mining equipment, which comprises: side edge rollers symmetrically arranged at both ends of a middle roller and coaxially rotating with the middle roller, a hydraulic rod and a fixed cylinder coaxially fixedly arranged in the side edge rollers, and an extendable roller fixedly connected to an output end of the hydraulic rod; an annular pressing plate slidably sleeved on an output shaft of the hydraulic rod, a first gear rack symmetrically arranged on the annular pressing plate, and a gear set transmissionally arranged between the first gear rack and an outer wall of the fixed cylinder; an air bag sleeved at a cylinder shaft connecting portion of the hydraulic rod, located between the fixed cylinder and the hydraulic rod, and slidably arranged at one end of the air bag and rotationally arranged at the other end. The annular pressing plate, the air bag and the elastic torsion bar can realize multi-dimensional vibration reduction, effectively improve the vibration reduction effect, keep the hydraulic rod stable during the tunneling process, avoid deformation of the hydraulic rod, and effectively prolong the service life of the hydraulic rod.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of mining equipment, in particular to a combined drilling and bolting machine. BACKGROUND

[0002] The combined drilling and bolting machine is a mining equipment integrating automatic anchoring and mining, which realizes synchronous operation of cutting, temporary support and anchor rod installation through integrated design and intelligent control, and improves construction efficiency and safety. The current combined drilling and bolting machine usually adopts a drum-type cutting head for cutting.

[0003] Publication No. CN110761787A, publication date 20200207, discloses a combined drilling and bolting machine cutting drum, which comprises an inner cutting drum, outer cutting drums arranged on both sides of the inner cutting drum, a containing groove arranged on both sides of the outer cutting drum, and a telescopic cutting drum arranged in the containing groove and in sliding connection with the outer cutting drum. The outer sides of the inner cutting drum, the outer cutting drum and the telescopic cutting drum are each provided with a plurality of rock breaking teeth. The telescopic cutting drum is provided with a fixing seat inside. The containing groove is provided with a mounting seat at the bottom. The mounting seat is provided with a telescopic oil cylinder. The output end of the telescopic oil cylinder is fixedly connected with the fixing seat. The both sides of the cutting drum are provided with outer cutting drums, and the both sides of the outer cutting drum are provided with telescopic cutting drums in sliding connection with the outer cutting drum. The commonly used scissor type is changed to telescopic structure. The telescopic oil cylinder is installed inside the outer cutting drum, and the telescopic cutting drum on both sides of the outer cutting drum is driven by the telescopic oil cylinder. The telescopic cutting drum can slide along the outer cutting drum, so as to realize the telescopic function of the outer cutting drum. The telescopic oil cylinder on both sides of the outer cutting drum is improved from the exposed mounting mode to the built-in mounting mode, so as to effectively protect the telescopic oil cylinder and increase the structural strength of the outer cutting drum on both sides.

[0004] In the prior art including the above patent application, the telescopic cutting drum on both sides of the outer cutting drum is driven by the hydraulic rod, so that the telescopic cutting drum can slide along the outer cutting drum, thereby realizing the telescopic function of the outer cutting drum, meeting the requirements of safe and efficient and rapid excavation of large mine large section roadway, and having the functions of continuous and rapid excavation and one-time forming of rectangular section. However, after the telescopic cutting drum and the outer cutting drum are elongated, the hydraulic rod is elongated, the longer the shaft, the lower the rigidity, and the oil cylinder is fixed with the outer cutting drum, and the output shaft is fixed with the telescopic cutting drum. During continuous excavation operation, with the rotation of the drum and the continuous impact of the rock breaking teeth on the mine wall, the connection between the oil cylinder and the output shaft is prone to vibration and torsional deformation, reducing the service life of the hydraulic rod. SUMMARY

[0005] The purpose of the present application is to provide a combined drilling and bolting machine to solve the problem in the prior art that the connection between the oil cylinder and the output shaft is prone to vibration and torsional deformation with the rotation of the drum and the continuous impact of the rock breaking teeth on the mine wall, reducing the service life of the hydraulic rod.

[0006] To achieve the above object, the present application provides the following technical scheme: an excavating-anchor integrated machine, comprising:

[0007] The side drum is symmetrically arranged at both ends of the middle drum and rotates coaxially with the middle drum, and a hydraulic rod and a fixed cylinder are coaxially fixedly arranged in the side drum, and the output end of the hydraulic rod is fixedly connected with an extension drum;

[0008] An annular pressing plate is slidably arranged on the output shaft of the hydraulic rod, and a first rack is symmetrically arranged on the annular pressing plate, and a gear set is transmissionally arranged between the first rack and the outer wall of the fixed cylinder;

[0009] An air bag is sleeved at the cylinder shaft connecting portion of the hydraulic rod, and is located between the fixed cylinder and the hydraulic rod, and one end of the air bag is slidably arranged, and the other end is rotationally arranged;

[0010] Elastic torsion bars are arranged in a circumferential array, and are arranged in a spiral shape between the air bag and the inner wall of the fixed cylinder, and the two ends of the elastic torsion bars are fixedly connected with the two ends of the air bag, respectively;

[0011] During the process that the hydraulic rod drives the extension drum to move by a preset distance, the gear set drives the annular pressing plate to move reversely through the first rack, and the sliding end of the air bag is moved along the output shaft of the hydraulic rod, and the elastic torsion bar is extruded to deform, so that one end of the elastic torsion bar drives the rotating end of the air bag to rotate, and the air bag is rotated and compressed to expand in the closed space formed by the annular pressing plate, the hydraulic rod and the fixed cylinder at the cylinder shaft connecting portion, so as to be in interference fit with the closed space.

[0012] As a preferred, a limiting sleeve is fixedly arranged on the sliding end of the air bag, and a lever plate is arranged on the limiting sleeve in a reverse S shape.

[0013] As a preferred, the lever plate comprises a first bending portion and a second bending portion, the first bending portion is bent towards the hydraulic rod and is arranged in abutment with the torsion portion of the air bag, and the second bending portion is elastically arranged.

[0014] As a preferred, the end of the first bending portion on the lever plate is inserted and matched with a first clamping groove opened on the corresponding position of the outer wall of the hydraulic rod oil cylinder, and the end of the second bending portion on the lever plate is inserted and matched with a second clamping groove opened on the corresponding position of the limiting sleeve.

[0015] As a preferred, a second rubber pad is arranged in the first clamping groove on the outer wall of the hydraulic rod oil cylinder, and a first rubber pad is arranged in the second clamping groove on the limiting sleeve.

[0016] As a preferred, a protrusion is fixedly arranged on the side of the lever plate away from the air bag.

[0017] Preferably, the limiting sleeve is elastically provided with an internally hollow plug, the plug is in communication with a plug tube at one end of the third clamping slot of the protrusion, the plug is in plug-in cooperation with the fourth clamping slot of the hydraulic rod output shaft, and the fourth clamping slot is provided with a third rubber pad.

[0018] Preferably, the heat exchange cavity is internally provided with a refrigeration device, the heat exchange cavity is in communication with the plug, and the gas outlet is in communication with the space formed between the telescopic roller and the annular pressing plate.

[0019] Preferably, the fixed cylinder is externally provided with a flow guide pipe in communication with the space between the annular pressing plate and the fixed cylinder, the cross-sectional area of the flow guide pipe gradually decreases from the air inlet to the air outlet, and the space between the annular pressing plate and the fixed cylinder is symmetrically provided with a temperature sensor.

[0020] Preferably, the lever plate is internally provided with a flow guide channel, the gas outlet of the flow guide channel is in communication with the plug tube, the air inlet is in communication with the flow guide pipe, and the space between the telescopic roller and the annular pressing plate is in communication with the negative pressure pipe at the air outlet of the flow guide pipe.

[0021] In the above technical solution, the excavating-anchor integrated machine has the following beneficial effects:

[0022] The annular pressing plate, the air bag and the elastic torsion bar are arranged, the telescopic roller is driven by the hydraulic rod to move by a preset distance, in the process, the gear set drives the annular pressing plate to move reversely through the first rack, and the sliding end of the air bag is driven to move along the hydraulic rod output shaft, and the elastic torsion bar is deformed by being squeezed, so that one end of the elastic torsion bar drives the rotating end of the air bag to rotate, the air bag is rotated and compressed in the closed space formed by the annular pressing plate, the hydraulic rod and the fixed cylinder at the cylinder shaft connection, and the air bag is in interference fit with the closed space, so that multi-dimensional vibration reduction is realized, the vibration reduction effect is effectively improved, the hydraulic rod is kept stable during the excavation process, the deformation of the hydraulic rod is avoided, and the service life of the hydraulic rod is effectively prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0024] Figure 1 The three-dimensional structure schematic diagram provided by the embodiments of the present application;

[0025] Figure 2A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0026] Figure 3 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0027] Figure 4 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0028] Figure 5 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0029] Figure 6 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0030] Figure 7 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0031] Figure 8 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0032] Figure 9 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0033] Figure 10 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0034] Figure 11 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0035] Figure 12 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure

[0036] Figure 13 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0037] Figure 14 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0038] Figure 15 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0039] Figure 16 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure;

[0040] Figure 17 A structure schematic diagram provided by the embodiment of the present application is shown in the following figure.

[0041] Explanation of reference signs:

[0042] 1, side drum; 2, telescopic drum; 3, hydraulic rod; 4, first rack; 5, fixed cylinder; 6, second rack; 7, air bag; 8, elastic torsion bar; 9, limiting sleeve; 10, lever plate; 101, protrusion; 102, flow guide channel; 11, plug; 111, insertion pipe; 12, annular pressing plate; 13, flow guide cover; 14, heat exchange cavity; 15, refrigeration device; 16, flow guide pipe; 17, negative pressure pipe; 18, rubber plate; 19, first rubber pad; 20, second rubber pad; 21, third rubber pad; 22, negative pressure cover; 221, partition; 23, air suction pipe; 24, annular limiting plate; 25, temperature sensor. DETAILED DESCRIPTION

[0043] In order for those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings.

[0044] As shown in the drawings, an excavating-anchor integrated machine comprises: Figures 1-17

[0045] The side drum 1 is symmetrically arranged at both ends of the middle drum and rotates coaxially with the middle drum, and the hydraulic rod 3 and the fixed cylinder 5 are coaxially fixedly arranged in the side drum 1, and the output end of the hydraulic rod 3 is fixedly connected with the telescopic drum 2.

[0046] The annular pressing plate 12 is slidably arranged on the output shaft of the hydraulic rod 3, and the second gear is symmetrically arranged on the annular pressing plate 12, and the gear set is drivingly arranged between the first rack 4 and the outer wall of the fixed cylinder 5.

[0047] The air bag 7 is sleeved on the cylinder shaft connecting portion of the hydraulic rod 3, and is located between the fixed cylinder 5 and the hydraulic rod 3, one end of the air bag 7 is slidingly arranged, and the other end is rotatably arranged.

[0048] The elastic torsion bars 8 are arranged in a circumferential array, and are arranged in a spiral shape between the air bag 7 and the inner wall of the fixed cylinder 5, and the two ends of the elastic torsion bars 8 are fixedly connected with the two ends of the air bag 7, respectively.

[0049] During the process that the hydraulic rod 3 drives the telescopic drum 2 to move a preset distance, the gear set drives the annular pressing plate 12 to move in the opposite direction through the first rack 4, and pushes the sliding end of the air bag 7 to move along the output shaft of the hydraulic rod 3, and at the same time, the elastic torsion bars 8 are deformed by being squeezed, so that one end of the elastic torsion bars 8 drives the rotating end of the air bag 7 to rotate, and the air bag 7 rotates and expands in the closed space formed by the annular pressing plate 12 and the cylinder shaft connecting portion of the hydraulic rod 3 and the fixed cylinder 5 to fit with the closed space in interference.

[0050] ​Specifically, the operator starts the hydraulic rod 3 to drive the telescopic roller 2 to extend the side roller 1 to the preset position through the control system, thereby expanding the cutting roller's tunneling range to achieve the requirements of safe, efficient and rapid tunneling of large mine large-section roadway, and has the functions of continuous and rapid tunneling and one-time forming of rectangular section. When walking, the telescopic roller 2 is retracted to facilitate walking, and the width is reduced to facilitate walking.

[0051] Further, in the process of the hydraulic rod 3 driving the telescopic roller 2 to extend the side roller 1 to the preset position, the outer wall of the telescopic roller 2 is attached to the inner wall of the side roller 1 and moves along the inner wall of the side roller 1, and forms a closed space, so that the hydraulic rod 3 is built-in, thereby playing a certain protective role for the hydraulic rod 3. The gear set provided on the inner wall of the telescopic roller 2 moves synchronously with the telescopic roller 2, thereby driving the gear set to move relative to the fixed cylinder 5, thereby driving the first gear meshing with the second gear rack 6 symmetrically provided on the outer wall of the fixed cylinder 5 to rotate towards the moving direction, thereby driving the second gear meshing with the first gear to rotate in the opposite direction, thereby driving the second gear meshing with the second gear to move along the inner wall of the telescopic roller 2 in the direction opposite to the moving direction of the telescopic roller 2, thereby driving the annular pressing plate 12 to move along the output shaft of the hydraulic rod 3 towards the oil cylinder of the hydraulic rod 3, thereby driving the annular pressing plate 12 to contact the air bag 7.

[0052] Further, after the annular pressing plate 12 contacts the air bag 7, the annular pressing plate 12 pushes the sliding end of the air bag 7 to continue sliding, so that the air bag 7 is gradually compressed and expanded, at the same time, the annular pressing plate 12 pushes the elastic torsion bar 8 to move synchronously with the end of the air bag 7 fixedly connected to the sliding end, so that the elastic torsion bar 8 is compressed and deformed, and the elastic torsion bar 8 is twisted during the compression and deformation, so that the other end of the elastic torsion bar 8 drives the rotating end of the air bag 7 to rotate synchronously, so that the air bag 7 is rotated and compressed and expanded, and the fixed cylinder 5 and the oil cylinder between the hydraulic rod 3 are fixedly provided with an annular fixed plate, the rotating end of the air bag 7 is provided with an annular limiting plate 24, the annular limiting plate 24 is rotatably arranged on the annular fixed plate, so as to limit the rotating end of the air bag 7, so that the rotating end of the air bag 7 can only rotate and cannot slide, and the annular fixed plate, the annular pressing plate 12 and the limiting cylinder fixedly arranged on the annular fixed plate and sleeved outside the air bag 7 form a closed space at the cylinder shaft connection of the hydraulic rod 3, so that the air bag 7 which is rotated, compressed and expanded is in interference fit with the closed space, and because the hydraulic rod 3 is elongated, the longer the shaft is, the lower the rigidity is, the cylinder shaft connection of the hydraulic rod 3 is continuously subjected to torsional force due to continuous rotation of the drum, and the rock-breaking teeth on the drum continuously impact the mine wall, because the oil cylinder is fixed with the side drum 1 and the output shaft is fixed with the telescopic drum 2, the cylinder shaft connection of the hydraulic rod 3 is easily deformed, the air bag 7 supports the cylinder shaft connection of the hydraulic rod 3, at the same time, the air bag 7 can absorb vibration energy, so as to increase the connection strength of the cylinder shaft connection of the hydraulic rod 3, thereby prolonging the service life of the hydraulic rod 3, and the annular pressing plate 12 is driven without additional driving source, thereby effectively reducing the manufacturing cost.

[0053] Further, the oil cylinder and the output shaft of the hydraulic rod 3 are different in diameter, the air bag 7 is twisted and deformed, the gas in the air bag 7 is squeezed from the middle to both sides, so that the air bag 7 is divided into two parts and expanded, so that the air bag 7 can adapt to different diameters of the oil cylinder and the output shaft and can be well fitted with the oil cylinder and the output shaft for support, thereby realizing dynamic adaptive radial vibration reduction of the cylinder shaft connection of the hydraulic rod 3, and because the air bag 7 is twisted and deformed, the torsion part generates a certain degree of radial restraint force on the cylinder shaft connection, so as to maintain the coaxiality of the oil cylinder and the output shaft, thereby reducing the vibration of the cylinder shaft connection of the hydraulic rod 3 from different dimensions, effectively improving the vibration reduction effect.

[0054] Further, because the telescopic drum 2 breaks the side wall, the hydraulic rod 3 will also be subjected to axial vibration, the elastic torsion bar 8 is arranged to absorb the axial vibration from the telescopic drum 2, and the hydraulic rod 3 is subjected to axial vibration reduction through the friction damping between the air bag 7 and the hydraulic rod 3, so as to cooperate with the air bag 7 to realize multi-dimensional vibration reduction, effectively improve the vibration reduction effect, make the hydraulic rod 3 keep stable during tunneling, avoid deformation of the hydraulic rod 3, and effectively prolong the service life of the hydraulic rod 3.

[0055] As a further provided embodiment of the present application, the sliding end of the air bag 7 is fixedly provided with a limiting sleeve 9, and two lever plates 10 are arranged on the limiting sleeve 9 in a S-shaped manner with opposite ends.

[0056] Specifically, the limiting sleeve 9 is arranged in a three-layer annular sleeve, the innermost annular sleeve is sleeved on the output shaft of the hydraulic rod 3, and the maximum diameter of the innermost annular sleeve is the same as the cylinder diameter of the hydraulic rod 3, so as to further strengthen the rigidity of the cylinder shaft connection, the air bag 7 is twisted, compressed, expanded and deformed in the limiting sleeve 9, and a radial constraint force is generated on the cylinder shaft connection to a certain extent through the twisting part, so as to maintain the coaxiality of the oil cylinder and the output shaft, and further improve the damping effect.

[0057] As a further provided embodiment of the present application, the lever plate 10 includes a first bending part and a second bending part, the first bending part is bent towards the hydraulic rod 3 and is arranged in abutment with the twisting part of the air bag 7, and the second bending part is elastically arranged.

[0058] Specifically, the limiting sleeve 9 is provided with a rubber plate 18 at the part where the lever plate 10 is arranged to provide the lever plate 10 with activity, the annular pressing plate 12 pushes the sliding end of the air bag 7 to continue sliding, so as to gradually compress and expand the air bag 7, at the same time, the annular pressing plate 12 pushes the elastic torsion bar 8 to move synchronously with the one end of the air bag 7 fixedly connected with the sliding end, so as to compress and deform the elastic torsion bar 8, the elastic torsion bar 8 is twisted during the compression and deformation process, so as to drive the rotating end of the air bag 7 to rotate synchronously through the other end of the elastic torsion bar 8, so as to make the air bag 7 rotate, compress and expand and deform, the twisting part of the air bag 7 generates a radial constraint force, so as to press the first bending part to move towards the hydraulic rod 3, according to the lever principle, the first bending part moves towards the hydraulic rod 3, so as to drive the second bending part to compress the first spring and move away from the hydraulic rod 3, the first bending part can better abut with the air bag 7, increase the contact area, so as to increase the frictional damping, further cooperate with the elastic torsion bar 8, and better damp the hydraulic rod 3 in the axial direction, and further improve the damping effect.

[0059] As a further provided embodiment of the present application, the end of the first bending part on the lever plate 10 is inserted and matched with the first clamping groove arranged at the corresponding position on the outer wall of the oil cylinder of the hydraulic rod 3, and the end of the second bending part on the lever plate 10 is inserted and matched with the second clamping groove arranged at the corresponding position on the limiting sleeve 9.

[0060] Specifically, the radial constraint force is generated by the torsion part of the air bag 7, so as to extrude the end of the first bending part to move in the direction of the hydraulic rod 3, and the first clamping slot is inserted and matched with the corresponding position of the first clamping slot on the outer wall of the hydraulic cylinder of the hydraulic rod 3, and the end of the second bending part is inserted and matched with the second clamping slot on the limiting sleeve 9, so as to improve the coaxiality of the hydraulic cylinder of the hydraulic rod 3 and the limiting sleeve 9, thereby improving the damping effect.

[0061] As a further embodiment of the present application, the second rubber pad 20 is arranged in the first clamping slot on the outer wall of the hydraulic cylinder of the hydraulic rod 3, and the first rubber pad 19 is arranged in the second clamping slot on the limiting sleeve 9.

[0062] Specifically, the second rubber pad 20 and the first rubber pad 19 are arranged, so as to provide elastic space when the first bending part and the second bending part are inserted, and further absorb vibration, so as to maintain the coaxiality of the hydraulic cylinder and the limiting sleeve 9, thereby further improving the damping effect.

[0063] As a further embodiment of the present application, the protrusion 101 is fixedly arranged on the side of the lever plate 10 away from the air bag 7.

[0064] As a further embodiment of the present application, the plug 11 with a hollow inside is elastically arranged on the limiting sleeve 9, the plug 11 is in inserted and matched with the fourth clamping slot on the output shaft of the hydraulic rod 3, the fourth clamping slot is arranged with the third rubber pad 21, and the plug 11 is in inserted and matched with the third clamping slot on the protrusion 101.

[0065] Specifically, the radial constraint force is generated by the torsion part of the air bag 7, so as to extrude the end of the first bending part to move in the direction of the hydraulic rod 3, and the first clamping slot is inserted and matched with the corresponding position of the first clamping slot on the outer wall of the hydraulic cylinder of the hydraulic rod 3, and the end of the second bending part is inserted and matched with the second clamping slot on the limiting sleeve 9, so as to improve the coaxiality of the hydraulic cylinder of the hydraulic rod 3 and the limiting sleeve 9, thereby improving the damping effect.

[0066] As a further embodiment of the present application, the heat exchange cavity 14 is symmetrically arranged in the end of the telescopic roller 2, the refrigeration device 15 is arranged in the heat exchange cavity 14, the heat exchange cavity 14 is in communication with the plug 11 at the air inlet port, and the heat exchange cavity 14 is in communication with the space between the telescopic roller 2 and the annular pressing plate 12 at the air outlet port.

[0067] Specifically, the refrigeration device 15 is a semiconductor refrigeration device, a heat dissipation fin in contact with the outside is arranged on the heat dissipation surface of the semiconductor refrigeration device, and a cold conducting column is arranged on the refrigeration surface. The heat exchange cavity 14 is in communication with the fourth clamping groove through the first air duct arranged in the output shaft of the hydraulic rod 3.

[0068] As a further embodiment of the present application, a flow guide pipe 16 is fixedly arranged on the outer wall of the fixing cylinder 5 and in communication with the space between the annular pressing plate 12 and the fixing cylinder 5. The cross-sectional area of the flow guide pipe 16 gradually decreases from the air inlet to the air outlet. The temperature sensor 25 is symmetrically arranged in the space between the annular pressing plate 12 and the fixing cylinder 5.

[0069] Specifically, after the hydraulic rod 3 extends by a preset distance, the annular pressing plate 12 divides the space between the telescopic roller 2 and the side roller 1 into two parts. The internal space part of the telescopic roller 2 has a slow heating speed because the surface of the telescopic roller 2 is not provided with rock breaking teeth, and the heat can be dissipated through the external spraying system. The temperature of the internal space part of the telescopic roller 2 is lower than that of the side roller 1. The temperature of the side roller 1 is increased and flows to the flow guide cover 13 through the flow guide pipe 16, and then flows into the second air duct in the limiting sleeve 9 through the flow guide cover 13. Because the cross-sectional area of the flow guide pipe 16 gradually decreases from the air inlet to the air outlet, the flow speed is small at the large cross section and the flow speed is large at the small cross section. The hot air flow accelerates and is sprayed out of the flow guide pipe 16, so that a negative pressure is generated at the spray port of the flow guide pipe 16.

[0070] As a further embodiment of the present application, the flow guide channel 102 is arranged in the lever plate 10. The air outlet port of the flow guide channel 102 is in communication with the insertion pipe 111, and the air inlet port is in communication with the flow guide pipe 16. The negative pressure pipe 17 is arranged in communication between the air outlet port of the flow guide pipe 16 and the space between the telescopic roller 2 and the annular pressing plate 12.

[0071] Specifically, the flow guide channel 102 is arranged in the lever plate 10 corresponding to the position of the flow guide pipe 16. The insertion block 11 corresponding to the position of the flow guide pipe 16 is in a hollow state. The radial constraint force is generated by the torsion part of the air bag 7, so that the end part of the first bending part is pressed to move to the direction of the hydraulic rod 3 and is inserted and matched with the first clamping groove arranged at the corresponding position on the outer wall of the oil cylinder of the hydraulic rod 3. The end part of the second bending part is inserted and matched with the second clamping groove arranged at the corresponding position of the limiting sleeve 9, so that the insertion block 11 is in communication with the first air duct in the output shaft.

[0072] Further, the temperature inside the side drum 1 is increased, and the flow is guided to the flow guide cover 13 through the flow guide pipe 16, and then into the second air channel in the limiting sleeve 9 through the flow guide cover 13, and then into the heat exchange cavity 14 through the lever plate 10, the plug 11 and the first air channel, and then into the inner space of the telescopic drum 2 for heat exchange. The negative pressure cover 22 is arranged on the annular pressing plate 12, when the hydraulic rod 3 is extended by a preset distance, the negative pressure cover 22 is communicated with the negative pressure pipe 17 arranged at the nozzle of the flow guide pipe 16 and the air extraction pipe 23 arranged on the fixed cylinder 5, so that the negative pressure state in the negative pressure cover 22 is adjusted through the negative pressure pipe 17, so that the air with lower temperature is extracted through the air inlet communicated with the inner space of the telescopic drum 2 through the negative pressure cover 22, and the air with lower temperature is guided to the oil cylinder of the hydraulic rod 3 through the baffle 221 arranged in the negative pressure cover 22, so that the internal circulation heat dissipation is realized, and the hydraulic rod 3 is cooled, so that the service life of the hydraulic rod 3 is effectively prolonged.

[0073] Further, the temperature is monitored through the arranged temperature sensor 25, the temperature sensor 25 is a PT100 temperature sensor, when the temperature reaches a preset value, the refrigerating device is started through the control system to realize rapid heat exchange, when the temperature is not high, the ordinary internal circulation heat dissipation is realized, when the temperature is too high, the auxiliary circulation heat dissipation is realized, which is more energy-saving and environment-friendly, and the hydraulic rod 3 is effectively cooled, so that the service life of the hydraulic rod 3 is prolonged.

[0074] The above only describes some exemplary embodiments of the present application in a descriptive manner, it is needless to say that the described embodiments can be modified in various ways without departing from the spirit and scope of the present application for those skilled in the art. Therefore, the above drawings and description are illustrative in nature, and should not be understood as limiting the scope of protection of the claims of the present application.

Claims

1. A tunneling and anchoring integrated machine, characterized in that, include: Side rollers are symmetrically arranged at both ends of the central roller and rotate coaxially with the central roller. A hydraulic rod and a fixed cylinder are fixedly installed coaxially inside each side roller. The output end of the hydraulic rod is fixedly connected to a telescopic roller. An annular pressure plate is slidably sleeved on the output shaft of the hydraulic rod, and a first rack is symmetrically arranged on it. A gear set is driven between the first rack and the outer wall of the fixed cylinder. An air bladder is fitted at the connection between the hydraulic rod cylinder shaft and the fixed cylinder. One end of the air bladder is slidably disposed, while the other end is rotatably disposed. The elastic twisted bars arranged in a circular array are spirally disposed between the airbag and the inner wall of the fixed cylinder, and the two ends of the elastic twisted bars are respectively fixedly connected to the two ends of the airbag. During the process of the hydraulic rod driving the telescopic roller to move a preset distance, the gear set drives the annular pressure plate to move in the opposite direction through the first rack, and pushes the sliding end of the airbag to move along the output shaft of the hydraulic rod. At the same time, it squeezes the elastic torsion bar to deform, so that one end of the elastic torsion bar drives the rotating end of the airbag to rotate. The airbag rotates, compresses and expands in the closed space formed by the annular pressure plate, the hydraulic rod and the fixed cylinder at the cylinder shaft connection to make an interference fit with the closed space.

2. The tunneling and anchoring integrated machine according to claim 1, characterized in that, The airbag sliding end is fixedly provided with a limiting sleeve, and a lever plate with both ends bent in opposite directions and arranged in an S-shape is inserted through the limiting sleeve at the point where it fits with the hydraulic rod output shaft.

3. The tunneling and anchoring integrated machine according to claim 2, characterized in that, The lever plate includes a first curved portion and a second curved portion. The first curved portion is bent toward the hydraulic rod and fits against the airbag torsion portion, while the second curved portion is elastically arranged.

4. The tunneling and anchoring integrated machine according to claim 3, characterized in that, The end of the first curved portion on the lever plate is engaged with the first slot at the corresponding position on the outer wall of the hydraulic cylinder, and the end of the second curved portion on the lever plate is engaged with the second slot at the corresponding position on the limiting sleeve.

5. The tunneling and anchoring integrated machine according to claim 4, characterized in that, A second rubber pad is provided in the first slot on the outer wall of the hydraulic cylinder, and a first rubber pad is provided in the second slot on the limiting sleeve.

6. The tunneling and anchoring integrated machine according to claim 2, characterized in that, The lever plate has a protrusion fixedly provided on the side away from the airbag.

7. The tunneling and anchoring integrated machine according to claim 6, characterized in that, The limiting sleeve is elastically provided with a hollow insert block. The insert block has a tube connected to it, one end of which is inserted into a third slot on the protrusion. The insert block is inserted into a fourth slot on the hydraulic rod output shaft. A third rubber pad is provided in the fourth slot.

8. The tunneling and anchoring integrated machine according to claim 7, characterized in that, The telescopic roller has symmetrically arranged heat exchange chambers at its end, and a cooler is installed in each heat exchange chamber. The air inlet of the heat exchange chamber is connected to the insert block, while the air outlet is connected to the space formed between the telescopic roller and the annular pressure plate.

9. A tunneling and anchoring integrated machine according to claim 8, characterized in that, A guide pipe is fixedly installed on the outer wall of the fixed cylinder, communicating with the space between the annular pressure plate and the fixed cylinder. The cross-sectional area of ​​the guide pipe gradually decreases from the air inlet to the air outlet. Temperature sensors are symmetrically arranged in the space formed between the annular pressure plate and the fixed cylinder.

10. A tunneling and anchoring integrated machine according to claim 9, characterized in that, The lever plate has a flow channel, the air outlet of the flow channel is connected to the insertion tube, and the air inlet is connected to the flow pipe. A negative pressure pipe is connected between the air outlet of the flow pipe and the space formed between the telescopic roller and the annular pressure plate.

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