Tunnel construction trolley

Abstract

The utility model belongs to the technical field of tunnel construction equipment, and discloses a tunnel construction trolley which comprises a rack and a mechanical arm arranged in the middle of the upper end of the rack. The mechanical arm comprises a large connecting arm, a gripper mechanism and a guniting mechanism; one end of the large connecting arm is arranged on the rack; the gripper mechanism is arranged at the end, away from the rack, of the large connecting arm. The guniting mechanism is arranged at the end, away from the rack, of the large connecting arm through a first rotating mechanism so that the guniting mechanism can be switched between a recycling position and a working position. The mechanical arm is arranged, rapid switching of an arch frame and guniting can be achieved in the construction process, the construction space of the mechanical arm cannot be affected, and the construction quality and efficiency can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to tunnel construction equipment technical field, especially relate to a tunnel construction trolley. BACKGROUND

[0002] The arch spray refers to the arch and the spouting process, and a layer of 3-5 cm concrete is usually sprayed on the tunnel surface just excavated by the wet spraying trolley in the construction process, which aims to timely close the surrounding rock, prevent the surrounding rock from long-term exposure weathering loosening and falling off, and improve the stability of the surrounding rock; the arch is further supported by the arch trolley after spouting, which grabs the arch type and splices into a whole.

[0003] At present, the arch and the spouting are usually completed by two devices, and frequent scene transfer operation is required in the construction process, so there are the disadvantages of long time consumption, high labor cost and low construction efficiency. Although the current device integrates the arch mechanical arm and the spouting mechanical arm on the trolley respectively, which can solve the scene transfer problem, but the number of construction mechanical arms on the trolley is increased, so the degree of freedom of the single mechanical arm is reduced, and therefore the activity construction space of each mechanical arm is limited, which also causes the construction quality and efficiency to be reduced. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model discloses a tunnel construction trolley with a mechanical arm, which can realize the quick switching of the arch and the spouting in the construction process, and will not affect the construction space of the mechanical arm, and can effectively provide the construction quality and efficiency.

[0005] The specific technical scheme of the utility model is as follows:

[0006] A tunnel construction trolley comprises a rack and a mechanical arm arranged at the middle part of the upper end of the rack.

[0007] The mechanical arm comprises:

[0008] A connecting arm, one end of the connecting arm is arranged on the rack;

[0009] A grabbing mechanism, the grabbing mechanism is arranged at the end of the connecting arm away from the rack; and

[0010] A spouting mechanism, the spouting mechanism is arranged at the end of the connecting arm away from the rack through the rotation mechanism, so as to switch between the recycling position and the working position.

[0011] In the present application, the gripper mechanism and the shotcreting mechanism are arranged on the connecting arm, wherein the shotcreting mechanism is connected with the connecting arm through the rotating mechanism I, so that only when the rotating mechanism I is driven to act, the shotcreting mechanism moves relative to the connecting arm, and thus the switching of the arch function and the shotcreting function can be realized at this time. In other words, when the shotcreting mechanism is located at the working position, the gripper mechanism is in an unusable state, and when the shotcreting mechanism is located at the recycling position, the shotcreting mechanism can be avoided to realize the normal use of the gripper mechanism. Therefore, by arranging the gripper mechanism and the shotcreting mechanism on the same mechanical arm, the number of mechanical arms caused by integrating the gripper mechanism and the shotcreting mechanism respectively can be effectively reduced, thereby avoiding the problem of insufficient construction space caused by the simultaneous existence of multiple mechanical arms. Since the rotating mechanism I is easy to operate, the construction quality and efficiency can also be improved.

[0012] Preferably, the large arm driving mechanism is arranged between the rack and the connecting arm, and is used to drive the connecting arm to swing and pitch.

[0013] The large arm driving mechanism can well meet the movement requirements of the connecting arm, thereby realizing the conversion of the construction position, which is convenient and fast.

[0014] Preferably, the large arm driving mechanism comprises:

[0015] a support I arranged on the rack, wherein the support I is hinged to the connecting arm; and

[0016] a power source I arranged between the support I and the connecting arm, so as to drive the connecting arm to swing;

[0017] a support II hinged to the support I and the connecting arm;

[0018] a power source II arranged between the support II and the connecting arm, so as to drive the connecting arm to pitch.

[0019] The structure is simple and easy to realize, and can well adjust the position of the connecting arm in the horizontal plane and the vertical plane, thereby facilitating the construction operation.

[0020] Preferably, the large arm driving mechanism further comprises:

[0021] a support III hinged to one end of the connecting arm away from the rack;

[0022] a power source III arranged between the support III and the connecting arm, so as to drive the support III to pitch;

[0023] wherein the gripper mechanism and the shotcreting mechanism are arranged on the support III.

[0024] The structure is simple, easy to realize, can well adjust the position of the support three in the vertical plane, and then facilitate the construction operation.

[0025] Preferably, a grab hand adjusting mechanism is arranged between the grab hand structure and the support three, and the position is adjusted through swing or pitching movement.

[0026] The structure is simple, easy to realize, can well adjust the construction position of the grab hand structure in the horizontal plane and / or vertical plane, and then facilitate the construction operation.

[0027] Preferably, the grab hand adjusting mechanism comprises:

[0028] The support five is movably connected to the support three;

[0029] The power source five is used to drive the support five to swing;

[0030] The grab hand structure is arranged on the support five;

[0031] When the shotcreting mechanism is located in the recovery position, the power source five drives the support five to unfold relative to the connecting large arm;

[0032] When the shotcreting mechanism is located in the working position, the power source five drives the support five to fold relative to the connecting large arm.

[0033] The structure is simple, easy to realize, can well adjust the construction position of the grab hand structure in the horizontal plane, and then facilitate the construction operation, and then realize the multi-angle precise adjustment of the position state of the arch frame grab hand, effectively improve the construction quality, and better realize the recovery and use of the shotcreting mechanism.

[0034] Preferably, a sliding mechanism is arranged between the rack and the connecting large arm.

[0035] The sliding mechanism can well improve the use range of the mechanical arm, thereby improving the construction efficiency.

[0036] Preferably, the rack is provided with a plurality of telescopic columns, and the end of the telescopic column is provided with a supporting base.

[0037] The telescopic column can meet the support requirements of the rack.

[0038] Preferably, the free end of the telescopic column is connected with a second rotating mechanism, and the supporting base is connected with the telescopic column through the second rotating mechanism.

[0039] The second rotating mechanism adjusts the relative angle between the supporting base and the rack to adjust the supporting position of the supporting base.

[0040] The rotation mechanism two enables the support base to rotate relative to the rack, so that when the arch rack is long or the installation space is insufficient, the rotation of the support base can be controlled by the rotation mechanism two to adjust the support position, so that the collision between the arch rack and the support base during the operation can be avoided under the premise of facilitating the transportation of the arch rack, thereby not only avoiding the construction difficulty caused by insufficient space and improving the convenience of operation, but also effectively improving the operation safety

[0041] Preferably, a horizontal movement mechanism is further arranged between the rotation mechanism and the support base, for driving the support base to horizontally move relative to the machine body.

[0042] The horizontal movement mechanism can further realize the position adjustment of the support base.

[0043] Compared with the prior art, the connecting arm can move flexibly in the construction space, has a larger operation range, and has wider adaptability; the rotation mechanism one can quickly realize the switching of the arch rack and the shotcreting operation mode, without the need of equipment transfer, thereby saving time cost and improving construction efficiency; meanwhile, since the gripper mechanism and the shotcreting mechanism share one connecting arm, the overall structure is smaller and lighter, thereby being beneficial to improving the space utilization rate; in addition, the multi-angle precise adjustment of the gripper mechanism and the shotcreting mechanism is realized through multiple power sources, thereby effectively improving the construction quality. BRIEF DESCRIPTION OF DRAWINGS

[0044] Figure 1 is a schematic view of the embodiment of the utility model;

[0045] Figure 2 is a schematic view of one direction of the mechanical arm in the embodiment of the utility model;

[0046] Figure 3 is a schematic view of another direction of the mechanical arm in the embodiment of the utility model;

[0047] Figure 4 is a schematic view of the gripper adjusting mechanism in the embodiment of the utility model.

[0048] In the drawing: 1-rack; 2-mechanical arm; 3-connecting arm; 4-gripper mechanism; 5-shotcreting mechanism; 6-rotation mechanism one; 7-rail; 8-moving block; 9-support one; 10-power source one; 11-support two; 12-power source two; 13-support three; 14-power source three; 15-support four; 16-power source four; 17-support five; 18-power source five; 19-support six; 20-power source six; 21-support seven; 22-power source seven; 23-power source eight; 24-telescopic column; 25-support base; 26-rotation mechanism two; 27-horizontal movement mechanism; 28-transition frame. DETAILED DESCRIPTION

[0049] In order to make the technical personnel in the art better understand the technical scheme of the utility model, the utility model will be further described in detail below in combination with specific embodiments.

[0050] Generally, in the process of tunnel construction, shotcreting operation and arch operation are needed, however, due to technical limitations, corresponding trolleys need to be frequently transferred, or there is a situation of insufficient construction space, thus affecting the construction progress. Therefore, the embodiment provides a tunnel construction trolley, which comprises a rack 1 and a mechanical arm 2 arranged at the middle of the upper end of the rack 1, the rack 1 is a rack with multiple working platforms, the mechanical arm 2 is installed on the rack 1, in the embodiment, the mechanical arm 2 is located on the working platform of the top layer, thus can move in the tunnel following the rack 1. Of course, the rack 1 can also be a single-layer working platform. The mechanical arm 2 is integrated with a grabbing mechanism 4 and a shotcreting mechanism 5 through a connecting large arm 3, and the shotcreting mechanism 5 is arranged on the connecting large arm 3 through a rotating mechanism I 6, thus when the rotating mechanism I 6 acts, the relative angle between the shotcreting mechanism 5 and the grabbing mechanism 4 can be adjusted, so as to realize the misalignment or overlap between the shotcreting mechanism 5 and the grabbing mechanism 4, thus meeting the demand of function switching. It can be known that when the mechanical arm 2 is arranged at the middle of the upper end of the rack 1, it is beneficial to grab the middle of the arch, keeps the grabbing balance, and the distance between the rack 1 itself and the tunnel wall is relatively close, thus when the mechanical arm 2 is located at the middle of the upper end of the rack 1, the distance between the mechanical arm 2 and the tunnel wall is relatively farther, thus it is more beneficial to avoid the interference of the tunnel wall, thus it is more beneficial to carry out tunnel operation.

[0051] Specifically, as shown in Figures 1-4 A tunnel construction mechanical arm 2, comprising a connecting large arm 3, a grabbing mechanism 4 and a shotcreting mechanism 5; one end of the connecting large arm 3 is arranged on the rack 1; the grabbing mechanism 4 is arranged at the end of the connecting large arm 3 away from the rack 1; the shotcreting mechanism 5 is arranged on the end of the connecting large arm 3 away from the rack 1 through a rotating mechanism I 6, so as to switch between the recovery position and the working position. In the embodiment, when the shotcreting mechanism 5 is located at the recovery position, the grabbing mechanism 4 is used to grab the arch; when the shotcreting mechanism 5 is located at the working position, the shotcreting mechanism 5 is used to carry out shotcreting operation.

[0052] In the embodiment, the grabbing mechanism 4 and the shotcreting mechanism 5 are both located at the end of the connecting large arm 3, thus the construction distance is as long as possible. In the embodiment, in order to avoid the interference between the grabbing mechanism 4 and the shotcreting mechanism 5 in the construction process as much as possible, no matter whether the shotcreting mechanism 5 is located at the recovery position or the working position, the shotcreting mechanism 5 and the connecting large arm 3 are located in the same plane, that is, the relative angle between the shotcreting mechanism 5 and the connecting large arm 3 is 0° or 180°. As Figure 2As shown, when the grabbing mechanism 4 is located at the initial position, the relative angle between the overall structure of the grabbing mechanism 4 and the connecting arm 3 is 180°, at this time, when the shotcreting mechanism 5 is located at the working position, the overall shotcreting mechanism 5 is located directly above the grabbing mechanism 4, and at this time, the shotcreting mechanism 5, the grabbing mechanism 4 and the connecting arm 3 are kept in the same plane, as shown in Figure 3 As shown, when the shotcreting mechanism 5 is located at the recycling position, the overall shotcreting mechanism 5 is located directly above the connecting arm 3, and at this time, the shotcreting mechanism 5, the grabbing mechanism 4 and the connecting arm 3 are also kept in the same plane, in other words, when the shotcreting mechanism 5 is located at the working position, the shotcreting mechanism 5 can well hide the grabbing mechanism 4, and when the shotcreting mechanism 5 is located at the recycling position, it is equivalent to exposing the grabbing mechanism 4, so that the grabbing mechanism 4 can normally work. Obviously, when the overall structure length of the shotcreting mechanism 5 is greater than the overall structure length of the grabbing mechanism 4, the actual use requirements can be better met. A rectangular coordinate system XYZ is established with the center of the rotating mechanism 6, it can be known that the rotating mechanism 6 drives the connecting arm 3 to rotate along the circumference of the Z axis. The rotating mechanism 6 includes a motor and a rotating table, the rotating table is arranged on the connecting arm 3, the motor is in transmission connection with the rotating table, the rotating table is driven to rotate by the action of the motor, so as to drive the shotcreting mechanism 5 to rotate.

[0053] In the embodiment, a sliding mechanism is arranged between the gantry and the connecting arm. Specifically, the sliding mechanism includes a track 7 arranged on the gantry 1 and a moving block 8 in sliding cooperation with the track 1, and the connecting arm 3 is arranged on the moving block 8, so that when the moving block 8 slides along the track 1, the use range of the mechanical arm can be effectively improved. Further, the track 7 is arranged on the top working platform of the gantry 1.

[0054] As shown in Figure 2 and Figure 3As shown, in the embodiment, a large arm driving mechanism is further included, which is arranged between the moving block 8 and the connecting large arm 3, and is used to drive the connecting large arm 3 to swing and pitch. Specifically, the large arm driving mechanism includes a support 9 and a power source 10; the support 9 is arranged on the moving block 8, and the support 9 and the connecting large arm 3 are hinged; the power source 10 is arranged between the support 9 and the connecting large arm 3, and is used to drive the connecting large arm 3 to swing. Through the driving of the power source 10, the connecting large arm 3 is enabled to swing in the circumferential direction, so as to adjust the working position of the shotcreting mechanism 5 and the grabbing mechanism 4. In the embodiment, the power source 10 is a telescopic cylinder, and the two ends of the telescopic cylinder are hinged to the support 9 and the connecting large arm 3, respectively. Since the structure weight borne by the connecting large arm 3 is large, the connecting position between the connecting large arm 3 and the support 9 has a large size, so as to meet the strength requirement, and avoid the collapse of the connecting large arm 3 due to the insufficient supporting force. Further, the large arm driving mechanism further includes a support 11 and a power source 12; the support 11 is hinged to the support 9 and the connecting large arm 3; the power source 12 is arranged between the support 11 and the connecting large arm 3, and is used to drive the connecting large arm 3 to pitch. Thus, the pitching movement of the connecting large arm 3 in the vertical plane is realized, so as to further expand the construction range.

[0055] In the embodiment, a support 13 and a power source 14 are further included; the support 13 is hinged to one end of the connecting large arm 3 away from the moving block 8; the power source 14 is arranged between the support 13 and the connecting large arm 3, and is used to drive the support 13 to pitch; the grabbing mechanism 4 and the shotcreting mechanism 5 are arranged on the support 13. A rectangular coordinate system XYZ is established at the hinge position of the support 13 and the connecting large arm 3, and it can be known that, through the driving of the power source 14, the support 13 is enabled to rotate along the X axis in the circumferential direction, so as to adjust the working position of the shotcreting mechanism 5 and the grabbing mechanism 4. In the embodiment, the power source 14 is a telescopic cylinder, and the two ends of the telescopic cylinder are hinged to the support 13 and the connecting large arm 3, respectively.

[0056] As Figures 2-4It is shown that in the embodiment, the driving angle of the gripper mechanism 4, and the precision involved in the angle will affect the quality and efficiency of the arch, therefore, in the embodiment, a corresponding adjusting mechanism can be provided to meet the multidirectional adjustment of the gripper mechanism 4, so that the gripper mechanism 4 has a wider working range. Specifically, the gripper adjusting mechanism is provided between the gripper mechanism 4 and the support three 13 to enable the gripper mechanism 4 to adjust the position through swing or pitching movement. Further, the gripper adjusting mechanism comprises a support four 15 and a power source four 16, the support four 15 is hinged to the support three 13, and the power source four 16 is arranged between the support three 13 and the support four 15 to drive the support four 15 to pitch. The gripper adjusting mechanism further comprises a support five 17 and a power source five 18, the support five 17 is hinged to the support four 15, and the power source five 18 is arranged between the support four 15 and the support five 17 to drive the support five 17 to swing. The gripper adjusting mechanism further comprises a support six 19 and a power source six 20, the support six 19 is hinged to the support five 17, and the power source six 20 is arranged between the support five 17 and the support six 19 to drive the support six 19 to pitch. The gripper adjusting mechanism further comprises a support seven 21 and a power source seven 22, the support seven 21 is hinged to the support six 19, and the power source seven 22 is arranged between the support six 19 and the support seven 21 to drive the support seven 21 to pitch. Thus, in the embodiment, the gripper mechanism 4 is arranged on the support seven 21. When the spraying mechanism 5 is located at the recycling position, the support five 17 moves away from the support four 15 to unfold, and when the spraying mechanism 5 is located at the working position, the support five 17 moves close to the support four 15 to fold.

[0057] Therefore, for the whole gripper mechanism 4, from the end close to the connecting arm 3 to the end away from the connecting arm 3, the support three 13, the support four 15, the support five 17, the support six 19, and the support seven 21 are sequentially hinged, and corresponding supports are driven by corresponding power sources to realize steering, so as to meet the positioning requirements in multiple angles, thereby ensuring the action accuracy of the gripper mechanism 4 and improving the construction quality. As a preferred technical solution, a rectangular coordinate system XYZ is established at the hinge point between each support. In the embodiment, the support four 15 can rotate along its X axis, the support five 17 can rotate along its Z axis, the support six 19 can rotate along its X axis, and the support seven 21 can rotate along its Y axis. It should be noted that the power sources three 14 to seven 22 are also telescopic cylinders. It should be further noted that in the embodiment, taking the horizontal plane as a reference, the pitching movement refers to the rotation in the vertical plane, and the swinging refers to the rotation in the horizontal plane, so according to the actual position of the corresponding support, the pitching movement or the swinging can be known.

[0058] In this embodiment, the connecting arm 3 is configured as a telescopic arm structure. The connecting arm 3 includes multiple sliding arms that slide against each other, and also includes a power source 823 for driving the movement of each sliding arm. The power source 823 is also a telescopic cylinder, which facilitates driving and has a simple structure.

[0059] Therefore, in this embodiment, the moving block 8 can slide on the track 7 to achieve position switching of the connecting boom 3; the swing angle of the connecting boom 3 can be adjusted by power source one 10; the vertical pitch angle of the connecting boom 3 can be adjusted by power source two 12; the overall length of the connecting boom 3 can be adjusted by power source seven 22; the overall vertical pitch angle of the shotcrete mechanism 5 and the gripper mechanism 4 can be adjusted by power source three 14; the vertical pitch angle of the gripper mechanism 4 can be further adjusted by power source four 16; the swing angle of the gripper mechanism 4 can be adjusted by power source five 18; the vertical pitch angle of the gripper mechanism can be further adjusted by power source six 20; and the gripping angle of the gripper mechanism 4 can be adjusted by power source seven 22.

[0060] In this embodiment, the slewing mechanism 6 is installed above the connecting boom 3, and the shotcrete mechanism 5 is fixed to the slewing mechanism 6. The slewing mechanism 6 enables rapid switching between the arch frame and shotcrete modes. When the shotcrete mechanism 5 rotates above the gripper mechanism 4, the support 19 retracts, thus performing shotcrete operations. When the shotcrete mechanism 5 rotates above the connecting boom 3, the support 19 unfolds, and its angle can be adjusted using power sources 14 to 22 to meet the operational requirements of the gripper mechanism 4.

[0061] like Figure 1 As shown, in this embodiment, the platform 1 is provided with multiple telescopic columns 24, and each telescopic column 24 has a supporting base 25 at its end. Further, a second rotary mechanism 26 is connected to the free end of each telescopic column 24, and the supporting base 25 is connected to the telescopic column 24 via the second rotary mechanism 26; the second rotary mechanism 26 adjusts the relative angle between the supporting base 25 and the platform 1 to adjust the supporting position of the supporting base 25. Furthermore, a lateral movement mechanism 27 is also provided between the rotary mechanism and the supporting base 25 for driving the supporting base 25 to move laterally relative to the machine body.

[0062] A transition frame 28 is arranged between the horizontal moving mechanism 27 and the rotating mechanism. The rotating mechanism two 26 comprises a rotating seat and a rotating motor; one side of the rotating seat is connected with the telescopic column 24, and the other side is connected with the transition frame 28; the rotating motor is drivingly connected with the rotating seat, and is used to drive the transition frame 28 to rotate along the circumferential direction of the central axis of the rotating seat. The horizontal moving mechanism 27 comprises a slide rail, the slide rail is in sliding fit with the transition frame 28, and the slide rail is arranged on the supporting base 25. Thus, the supporting base 25 can be pulled by the telescopic cylinder, so as to realize the translation relative to the transition frame 28. Therefore, during the construction process, when the arch installation or the arch transportation is needed, the supporting base 25 is driven by the horizontal moving mechanism 27 to move to the inside of the trolley, and the telescopic column 24 is extended to the ground, so as to provide stable support for the machine body. For the case that the arch is long, if the arch contacts with the supporting base 25 or the transportation and installation space of the arch is insufficient, the rotating angle of the supporting base 25 can be controlled by the rotating mechanism two 26, so that the supporting base 25 is rotated to the appropriate position, the space is ensured to be sufficient during the installation and transportation of the arch, the interference is avoided, and the construction efficiency is improved. Therefore, the horizontal moving mechanism 27 and the rotating mechanism two 26 are reasonably configured, so that the supporting base 25 has the flexible adjustment capability during the trolley construction, the transportation of the side arch and the vertical arch operation can be ensured to be smoothly carried out, the collision between the supporting base 25 and the arch is avoided, and the safety and efficiency of the construction process are ensured.

[0063] The above merely is the preferred embodiment of the present application, and it should be pointed out that the above preferred embodiment should not be regarded as the limitation of the present application, and the protection scope of the present application should be defined by the scope of the claims. For the ordinary skilled in the art, some improvements and decorations can be made without departing from the spirit and scope of the present application, and these improvements and decorations should be regarded as the protection scope of the present application.

Claims

1. A tunneling jumbo, characterized in that, The device comprises a rack and a mechanical arm arranged at the middle of the upper end of the rack. The mechanical arm comprises: a connecting arm, one end of which is arranged on the rack; a gripper mechanism arranged at the end of the connecting arm away from the rack; and a shotcreting mechanism arranged at the end of the connecting arm away from the rack through the rotation mechanism to switch between the recovery position and the working position.

2. A tunneling trolley as claimed in claim 1, characterized in that Further comprising: a large arm driving mechanism arranged between the rack and the connecting arm to drive the connecting arm to swing and pitch.

3. A tunneling trolley as claimed in claim 2, wherein, The large arm driving mechanism comprises: a support one arranged on the rack, which is hinged to the connecting arm; and a power source one arranged between the support one and the connecting arm to drive the connecting arm to swing; a support two hinged to the support one and the connecting arm; a power source two arranged between the support two and the connecting arm to drive the connecting arm to pitch.

4. A tunneling trolley as claimed in claim 1, wherein, Further comprising: a support three hinged at the end of the connecting arm away from the rack; a power source three arranged between the support three and the connecting arm to drive the support three to pitch; wherein the gripper mechanism and the shotcreting mechanism are arranged on the support three.

5. A tunneling trolley as claimed in claim 4, wherein, A gripper adjusting mechanism is arranged between the gripper mechanism and the support three to adjust the position of the gripper mechanism through swinging or pitching.

6. A tunneling trolley as claimed in claim 5, wherein, The gripper adjusting mechanism comprises: a support five movably connected to the support three; a power source five for driving the support five to swing; wherein the gripper mechanism is arranged on the support five; when the shotcreting mechanism is in the recovery position, the power source five drives the support five to unfold relative to the connecting arm; when the shotcreting mechanism is in the working position, the power source five drives the support five to fold relative to the connecting arm.

7. A tunneling trolley as claimed in claim 1, wherein, A sliding mechanism is arranged between the rack and the connecting arm.

8. A tunneling trolley as claimed in claim 1, wherein, The rack is provided with a plurality of telescopic columns, the end of which is provided with a support base.

9. A tunneling trolley as claimed in claim 8, wherein, The free end of the telescopic column is connected with a rotation mechanism two, and the support base is connected with the telescopic column through the rotation mechanism two; wherein the rotation mechanism two adjusts the relative angle between the support base and the rack to adjust the support position of the support base.

10. A tunneling trolley as claimed in claim 9, wherein, A transverse mechanism is further arranged between the rotation mechanism and the support base to drive the support base to transversely move relative to the machine body.

Images