CN216518009U - Super large diameter shield constructs owner and drives aligning and prevent turning round device - Google Patents
Super large diameter shield constructs owner and drives aligning and prevent turning round device Download PDFInfo
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- CN216518009U CN216518009U CN202122918360.8U CN202122918360U CN216518009U CN 216518009 U CN216518009 U CN 216518009U CN 202122918360 U CN202122918360 U CN 202122918360U CN 216518009 U CN216518009 U CN 216518009U
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Abstract
The utility model discloses a super-large-diameter shield machine main drive aligning and anti-twisting device which comprises a main drive box body, a front shield, a pin shaft, a clamping block, a connecting screw, a connecting bolt I, a connecting bolt II, a telescopic oil cylinder connecting seat I, a telescopic oil cylinder connecting seat II, a telescopic oil cylinder, a connecting bolt III, an anti-twisting oil cylinder and a main drive supporting seat. The utility model has two functions of aligning and anti-twisting, the aligning function improves the replacement efficiency of the edge cutter, prevents the cutter head from being blocked, and is convenient for the shield machine to turn; the anti-twist function transmits the rotation torque to the front shield through the anti-twist oil cylinder, counteracts the reaction torque when the cutter head rotates to excavate, and plays a role in protecting the cutter head and the main drive; in addition, the utility model combines the aligning function and the anti-twisting function into a whole, cancels the central large spherical joint and the anti-twisting ring, has small structural member size, convenient maintenance and replacement, simple structure, low processing difficulty, convenient assembly and low manufacturing cost, and can improve the flexibility of the cutter head structure action and the shield construction safety.
Description
Technical Field
The utility model relates to a main drive aligning and anti-twisting device for an oversized-diameter shield machine, and belongs to the technical field of tunnel construction equipment.
Background
The shield machine is a special engineering machine for tunnel construction, which integrates mechanical, electrical, hydraulic, optical, sensing, computer, measurement and information technologies, and is widely used in tunnel engineering of subways, railways, highways, municipal works, hydropower and the like.
At present, the construction of urban highway tunnels and river-crossing tunnels is rapidly developed, and shield machines with ultra-large diameters are gradually widely used. Along with the increase of an excavation surface, the probability of geological unevenness is high, the difference of water and soil pressures of the upper part and the lower part of a working surface is obvious, the stratum disturbance is relatively large, and the problems of difficult tunneling, serious cutter damage, unbalanced bearing load and the like are easily caused. For the flexibility that improves the blade disc structure, the protection base bearing makes things convenient for the cutter to change and prevents that the blade disc from being blocked, the shield of super large diameter machine mostly adopts the main drive structure of scalable aligning to the blade disc stretches along the shield axial in satisfying the engineering, contracts, along the centering needs that float of radial. The telescopic function is realized by matching a plurality of groups of telescopic oil cylinders which are distributed along the circumference and are connected with the main drive and the shield body with telescopic slideways at the front part of the main drive, and after the telescopic oil cylinders are retracted, the cutter head maintenance, cutter changing and the like are facilitated; the aligning function is realized through a spherical hinge bearing structure, so that the cutter head and the main drive can deflect around the axis of the tunnel, the replacement efficiency of the edge cutter is improved, and shield turning is facilitated. The conventional shield main drive is fixedly connected with a front shield, while the telescopic aligning main drive is non-rigidly connected with a shield body due to the functional characteristics of the telescopic aligning main drive, and the drive per se has a twisting trend under the dual actions of a cutter head and self weight, so that an anti-twisting structure needs to be arranged on the main drive. The spherical hinge bearing structure with the conventional aligning function is in a central large spherical joint type, the processing technology is complex, the reliability requirement is high, the assembly precision is strict, and the manufacturing cost is high; the conventional main drive anti-torsion device is provided with the anti-torsion ring on the main drive excircle, and has the advantages of large and complex structural size, increased part weight and high manufacturing cost.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a main drive aligning and anti-twisting device for an oversized diameter shield tunneling machine aiming at the defects in the prior art.
In order to solve the technical problem, the utility model provides a main drive aligning and anti-twisting device for an oversized-diameter shield machine, which comprises a main drive box body, a front shield, a pin shaft, a clamping block, a connecting screw, a first connecting bolt, a second connecting bolt, a first telescopic oil cylinder connecting seat, a second telescopic oil cylinder connecting seat, a third connecting bolt, an anti-twisting oil cylinder and a main drive supporting seat, wherein the main drive box body is provided with a front shield; the main driving box body is of a welded structure, eight high-strength alloy connecting planes are arranged at four positions, namely the upper position, the lower position, the left position and the right position, in the axial direction, and the eight connecting planes are tightly attached to the four anti-torsion oil cylinders and the four main driving supporting seats; twenty groups of mounting positions of telescopic oil cylinder connecting seats are reserved on a large flange of the main driving box body; the front shield reserves four anti-torsion oil cylinders and four mounting positions of a main driving support seat at corresponding positions of eight connecting planes, namely the upper part, the lower part, the left part and the right part, of a main driving box body, and reserves twenty welding positions of connecting seats II of telescopic oil cylinders; the first telescopic oil cylinder connecting seat is of a cylindrical structure, a spherical groove is designed in the center of the first telescopic oil cylinder connecting seat, and the first telescopic oil cylinder connecting seat is connected with the main driving box body through a connecting screw; the second telescopic oil cylinder connecting seat is a frame-shaped welding part, and the bottom of the second telescopic oil cylinder connecting seat is welded on the front shield; the number of the telescopic oil cylinders is twenty, and four telescopic oil cylinders are provided with stroke sensors; the anti-torsion oil cylinders are four in number, two anti-torsion oil cylinders are installed downwards, and two anti-torsion oil cylinders are installed leftwards; the main driving supporting seats are four in number, two main driving supporting seats are installed upwards, and two main driving supporting seats are installed rightwards; the torsion-proof oil cylinder and the main driving supporting seat are rigidly connected with the front shield, and the second end cover of the torsion-proof oil cylinder and the third end cover of the main driving supporting seat are tightly attached to the plane of the main driving box body, so that the clamping and positioning of the main driving are realized, the rotating torque is transmitted to the front shield, and the torsion of the main driving is prevented; the telescopic oil cylinder connects the main driving box body and the front shield through the first telescopic oil cylinder connecting seat and the second telescopic oil cylinder connecting seat, the initial stroke of the oil cylinder is 30mm, and the extension and the contraction of the main driving and the cutter head can be realized by increasing or reducing the stroke of the oil cylinder.
The telescopic oil cylinder comprises a cylinder barrel I, a piston rod I, a ball head I and an end cover I; the bottom of the cylinder barrel I is connected with a second telescopic oil cylinder connecting seat through a pin shaft, and the position of the cylinder barrel I is limited through two pairs of pin shafts of a clamping block and a connecting bolt; the first ball head is of a spherical structure; the center of the first end cover is a spherical surface, and the spherical surface is machined with a spherical groove of the first telescopic oil cylinder connecting seat and matched with a ball head and a ball hinge; the first end cover is connected with the first telescopic oil cylinder connecting seat through a first connecting bolt; the stroke of the telescopic oil cylinder is 200mm, the initial stroke is 30mm, and the main drive and the extension and contraction of the cutter head can be realized by increasing or reducing the stroke of the oil cylinder.
The telescopic oil cylinders are divided into A, B, C three groups, the stroke of each group of oil cylinders can be uniformly controlled, and when the floating center is adjusted, the main driving floating center adjusting function is realized by adjusting the different strokes of each group of oil cylinders and matching with the spherical hinge structures of the anti-torsion oil cylinders and the main driving supporting seat.
The anti-torsion oil cylinder is of a spherical hinge structure and comprises a cylinder barrel II, a piston rod II, a ball head bolt I, an end cover II and a screw I; the torsion-proof oil cylinder is rigidly connected with the front shield through a cylinder II by using a connecting bolt III; the matching surface of the second piston rod and the second ball head is a spherical surface and is connected through a first ball head bolt; the matching surface of the first ball stud and the second ball stud is a spherical surface; the second end cover is made of high-strength alloy and is connected with the second ball head through a first screw; the total stroke of the anti-twist oil cylinder is 70mm, and when the anti-twist oil cylinder is tightly attached to the plane of the main driving box body, the set stroke of the oil cylinder is 35 mm.
The main driving supporting seat is of a spherical hinge structure and comprises a base, a ball head III, a ball head bolt II, an end cover III and a screw II; the main driving support seat is connected with the front shield through a base by using a third connecting bolt; the matching surface of the base and the ball head is a spherical surface and is connected through a ball head bolt II; the matching surface of the second ball stud and the third ball stud is a spherical surface; the end cover III is made of high-strength alloy and is connected with the ball head III through a screw II.
The pin shaft is of a cylindrical structure, and one end of the pin shaft is provided with a groove with the depth of 10mm and the width of 23 mm.
The fixture block is in a rectangular structure with the height of 22 mm.
Has the advantages that: the utility model has two functions of aligning and anti-twisting, the aligning function improves the replacement efficiency of the edge cutter, prevents the cutter head from being clamped, and is convenient for the shield machine to turn; the anti-twist function transmits the rotation torque to the front shield through the anti-twist oil cylinder, counteracts the reaction torque when the cutter head rotates and excavates, and plays a role in protecting the cutter head and the main drive; in addition, the utility model combines the aligning function and the anti-twisting function into a whole, cancels the central large spherical joint and the anti-twisting ring, has small structural member size, convenient maintenance and replacement, simple structure, low processing difficulty, convenient assembly and low manufacturing cost, and can improve the flexibility of the cutter head structure action and the safety of shield construction.
Drawings
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is a schematic cross-sectional view A-A of FIG. 1 according to the present invention;
FIG. 3 is a schematic cross-sectional view B-B of FIG. 2 according to the present invention;
FIG. 4 is a view of the utility model taken along line C of FIG. 3;
FIG. 5 is a schematic front view of the main drive housing of the present invention;
FIG. 6 is an X-view of the present invention in FIG. 5;
FIG. 7 is a schematic cross-sectional view of the anterior shield of the present invention;
FIG. 8 is a Y-view of FIG. 7 in accordance with the present invention;
FIG. 9 is a schematic structural view of a pin shaft according to the present invention;
FIG. 10a is a schematic structural view of a fixture block according to the present invention;
FIG. 10b is a schematic top view of a cartridge of the present invention;
FIG. 11a is a schematic structural view of a first connecting seat of the telescopic cylinder according to the present invention;
FIG. 11b is a schematic cross-sectional view D-D of FIG. 11a in accordance with the present invention;
FIG. 12a is a schematic structural view of a second connecting seat of the telescopic cylinder according to the present invention;
FIG. 12b is a schematic top sectional view of the second connecting seat of the telescopic cylinder according to the present invention;
FIG. 13 is a simplified structural diagram of the telescopic cylinder of the present invention;
FIG. 14a is a simplified structural schematic diagram of the anti-twist cylinder of the present invention;
FIG. 14b is a schematic cross-sectional view E-E of FIG. 14a in accordance with the present invention;
FIG. 15a is a schematic structural view of a main driving support base according to the present invention;
FIG. 15b is a schematic cross-sectional view F-F of FIG. 15a according to the present invention;
FIG. 16 is a schematic diagram of a group of telescopic cylinders according to the present invention;
FIG. 17 is a schematic view of the main drive in the center of gravity deflection downward according to the present invention.
In the figure: 1. a main drive box body; 2. anterior shield; 3. a pin shaft; 4. a clamping block; 5. a connecting screw; 6. connecting a first bolt; 7. a second connecting bolt; 8. the first telescopic oil cylinder connecting seat; 9. a second telescopic oil cylinder connecting seat; 10. a telescopic oil cylinder; 11. connecting a third bolt; 12. an anti-twist oil cylinder; 13. a main drive support seat; 101. a cylinder barrel I; 102. a first piston; 103. a first piston rod; 104. a first ball head; 105. a first end cover; 121. a cylinder barrel II; 122. a second piston; 123. a piston rod II; 124. a second ball head; 125. a ball stud I; 126. a second end cover; 127. a first screw; 131. a base; 132. a third ball head; 133. a second ball stud; 134. end covers III; 135. a second screw; 20. a cutter head.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
As shown in fig. 1-17, the utility model provides an ultra-large diameter shield tunneling machine main drive aligning and anti-twisting device, which comprises a main drive box body 1, a front shield 2, a pin shaft 3, a clamping block 4, a connecting screw 5, a connecting bolt I6, a connecting bolt II 7, a telescopic oil cylinder connecting seat I8, a telescopic oil cylinder connecting seat II 9, a telescopic oil cylinder 10, a connecting bolt III 11, an anti-twisting oil cylinder 12 and a main drive supporting seat 13; the main driving box body 1 is of a welded structure, eight high-strength alloy connecting planes (as shown in fig. 5a 1-A8) are arranged at four positions of the axial direction, namely the upper position, the lower position, the left position and the right position, and the eight connecting planes are tightly attached to four anti-torsion oil cylinders 12 and four main driving supporting seats 13; 20 groups of first 8 mounting positions of telescopic oil cylinder connecting seats are reserved on a large flange of the main driving box body 1; four mounting positions (shown as B1-B4 in figure 7) of anti-torsion oil cylinders 12 and four mounting positions (shown as B5-B8 in figure 7) of main drive supporting seats 13 are reserved at corresponding positions of eight upper, lower, left and right connecting planes of the main drive box body 1 by the front shield 2, and meanwhile, welding positions of 20 groups of second telescopic oil cylinder connecting seats 9 are reserved; the first telescopic oil cylinder connecting seat 8 is of a cylindrical structure, is provided with a spherical groove at the center and is connected with the main driving box body 1 through a connecting screw 5; the second telescopic oil cylinder connecting seat 9 is a frame-shaped welding part, and the bottom of the second telescopic oil cylinder connecting seat is welded on the front shield 2; the telescopic oil cylinders 10 comprise twenty parts (as shown in C1-C20 in FIG. 16), wherein four parts are provided with stroke sensors (as shown in C3, C8, C13 and C18 oil cylinder positions in FIG. 16); the anti-twist oil cylinders 12 are four in number, two are installed downwards, and two are installed towards the left; the main driving supporting seats 13 are four in number, two main driving supporting seats are installed upwards, and two main driving supporting seats are installed rightwards; the torsion-proof oil cylinder 12 and the main drive supporting seat 13 are rigidly connected with the front shield 2, and the second end cover 126 of the torsion-proof oil cylinder 12 and the third end cover 134 of the main drive supporting seat 13 are tightly attached to the plane of the main drive box body 1, so that the clamping and positioning of the main drive are realized, the rotation torque is transmitted to the front shield 2, and the torsion of the main drive is prevented; the telescopic oil cylinder 10 connects the main driving box body 1 and the front shield 2 through a first telescopic oil cylinder connecting seat 8 and a second telescopic oil cylinder connecting seat 9, the initial stroke of the oil cylinder is 30mm, and the extension and the contraction of the main driving and the cutter head can be realized by increasing or reducing the stroke of the oil cylinder.
The telescopic oil cylinder 10 comprises a cylinder barrel I101, a piston I102, a piston rod I103, a ball head I104 and an end cover I105; the bottom of the cylinder barrel I101 is connected with a second telescopic oil cylinder connecting seat 9 through a pin shaft 3, and the pin shaft 3 is limited through a fixture block 4 and a second connecting bolt 7; the first ball head 104 is of a spherical structure; the center of the first end cover 105 is a spherical surface which is machined with a spherical groove of the first telescopic oil cylinder connecting seat 8 and is in spherical hinge fit with the first ball head 104; the first end cover 105 is connected with a first telescopic oil cylinder connecting seat 8 through a first connecting bolt 6; the stroke of the telescopic oil cylinder 10 is 200mm, the initial stroke is 30mm, and the main drive and the extension and contraction of the cutter head can be realized by increasing or reducing the stroke of the oil cylinder.
The telescopic oil cylinders 10 are divided into A, B, C three groups (as shown in fig. 16), the stroke of each group of oil cylinders can be uniformly controlled, and when floating centering is needed, the main driving floating centering function is realized by adjusting the different strokes of each group of oil cylinders and matching with the spherical hinge structures of the anti-torsion oil cylinders 12 and the main driving supporting seats 13.
The torsion-proof oil cylinder 12 is of a spherical hinge structure and comprises a second cylinder barrel 121, a second piston 122, a second piston rod 123, a second ball head 124, a first ball head bolt 125, a second end cover 126 and a first screw 127, and the torsion-proof oil cylinder 12 is rigidly connected with the front shield 2 through the second cylinder barrel 121 by using a third connecting bolt 11; the matching surfaces of the second piston rod 123 and the second ball head 124 are spherical surfaces and are connected through a first ball head bolt 125; the matching surface of the first ball stud 125 and the second ball stud 124 is a spherical surface; the second end cover 126 is made of high-strength alloy and is connected with the second ball head 124 through a first screw 127; the total stroke of the anti-twist oil cylinder 12 is 70mm, and when the anti-twist oil cylinder is tightly attached to the plane of the main driving box body 1, the set stroke of the oil cylinder is 35 mm.
The main driving support seat 13 is of a spherical hinge structure and comprises a base 131, a ball head III 132, a ball head bolt II 133, an end cover III 134 and a screw II 135; the main driving support seat 13 is connected with the front shield 2 through a base 131 by using a third connecting bolt 11; the matching surface of the base 131 and the third ball head 132 is a spherical surface and is connected through a second ball head bolt 133; the matching surface of the second ball stud 133 and the third ball stud 132 is a spherical surface; the third end cover 134 is made of high-strength alloy and is connected with the third ball head 132 through a second screw 135; the weight of the main drive is mainly borne by two main drive bearings 13 mounted at the bottom upwards.
The pin shaft 3 is of a cylindrical structure, and one end of the pin shaft is provided with a groove with the depth of 10mm and the width of 23 mm.
The fixture block 4 is in a rectangular structure with the height of 22 mm.
The connecting screw 5 is a standard socket head cap screw; the first connecting bolt 6, the second connecting bolt 7 and the third connecting bolt 11 are standard hexagonal head bolts.
In specific implementation, the anti-twisting function is as follows: the base 131 of the main drive supporting seat 13 is rigidly connected with the front shield 2 (B5-B8 in the attached drawing 7) through a third connecting bolt 11, and a third end cover 134 is tightly attached to the plane (A5-A8 in the attached drawing 5) of the main drive box body 1; a second cylinder 121 of the anti-torsion oil cylinder 12 is rigidly connected with a front shield 2 (B1-B4 in the attached drawing 7) through a third connecting bolt 11, a second end cover 126 is tightly attached to the plane of the main driving box body 1 (A1-A4 in the attached drawing 5), and the stroke of the anti-torsion oil cylinder 12 is 35mm and has certain pressure; the main driving box body 1 is clamped and positioned under the action of the torsion-proof oil cylinder 12 and the main driving supporting seat 13, and the weight of the main driving is mainly born by two main driving supporting seats 13 (Z1 and Z2 positions in the attached drawing 1) which are arranged at the bottom upwards; the shield machine cutterhead can generate reactive torque in the process of cutting soil body in a rotating manner, the torque enables the main drive to have the tendency of twisting along the axial direction, when the clockwise twisting tendency exists, the thrust of the two anti-twisting oil cylinders 12 arranged on the right side is increased, and when the anticlockwise twisting tendency exists, the thrust of the two anti-twisting oil cylinders 12 arranged on the top is increased; by adopting the torsion-proof device, the torsion can be transmitted to the front shield 2 from the main driving box body 1 through the torsion-proof oil cylinder 12 and the main driving supporting seat 13 when the torsion moment acts, so that the torsion-proof function of the main driving is realized.
In a specific implementation, the centering function is as follows: the telescopic oil cylinder 10 connects the main driving box body 1 with the front shield 2 through a telescopic oil cylinder connecting seat I8 and a telescopic oil cylinder connecting seat II 9, the total stroke of the oil cylinder is 200mm, the initial stroke is set to be 30mm, and the main driving and the extension and the contraction of the cutter head can be realized by synchronously increasing or reducing the stroke of the oil cylinder; the telescopic oil cylinder 10, the anti-torsion oil cylinder 12 and the main driving support base 13 are in a spherical hinge structure, so that the swing of a certain angle can be realized; the telescopic oil cylinders 10 are divided into A, B, C groups, the stroke of each group of oil cylinders can be uniformly controlled, when floating aligning is needed, the deflection of a main drive and a cutter head along the axis of a tunnel can be realized by adjusting the different strokes of each group of oil cylinders, local expanding excavation is realized, and the replacement of edge cutters and shield turning are facilitated. Take the main drive to deflect downwards for centering as an example: according to the size of the adjusting angle (theta in figure 17), the strokes of A, B two groups of oil cylinders (X1 in figure 17) are increased, the C group of oil cylinders can generate a stroke X2 under the driving of A, B oil cylinders, at the moment, the pushing forces of A, B group of oil cylinders and the C group of oil cylinders to the main drive are different, the upper part and the lower part of the main drive are stressed unevenly, the torsion-proof oil cylinder 12 and the main drive supporting seat 13 are of a spherical hinge structure, deflection of a certain angle can be generated around a hinge plane under the action of uneven upper and lower forces, further downward aligning deflection of the main drive and the cutter head is realized, and the position of the cutter head and the main drive after aligning is shown in figure 17. The principle of floating and aligning in other directions is similar, and only the stroke difference of different groups of oil cylinders needs to be adjusted.
The utility model has two functions of aligning and anti-twisting, the aligning function improves the replacement efficiency of the edge cutter, prevents the cutter head from being clamped, and is convenient for the shield machine to turn; the anti-twist function transmits the rotation torque to the front shield through the anti-twist oil cylinder, counteracts the reaction torque when the cutter head rotates and excavates, and plays a role in protecting the cutter head and the main drive; in addition, the utility model combines the aligning function and the anti-twisting function into a whole, cancels the central large spherical joint and the anti-twisting ring, has small structural member size, convenient maintenance and replacement, simple structure, low processing difficulty, convenient assembly and low manufacturing cost, and can improve the flexibility of the cutter head structure action and the safety of shield construction.
The above-described embodiments of the utility model are intended to be illustrative only and are not intended to be limiting, as all changes that come within the scope of or equivalence to the utility model are intended to be embraced therein.
Claims (7)
1. The utility model provides a super large diameter shield constructs owner and drives aligning and anti-twist device which characterized in that: the device comprises a main driving box body (1), a front shield (2), a pin shaft (3), a clamping block (4), a connecting screw (5), a connecting bolt I (6), a connecting bolt II (7), a telescopic oil cylinder connecting seat I (8), a telescopic oil cylinder connecting seat II (9), a telescopic oil cylinder (10), a connecting bolt III (11), an anti-torsion oil cylinder (12) and a main driving supporting seat (13); the main driving box body (1) is of a welded structure, eight high-strength alloy connecting planes are arranged at four positions, namely the upper position, the lower position, the left position and the right position, of the axial direction, and the eight connecting planes are tightly attached to four anti-torsion oil cylinders (12) and four main driving supporting seats (13); twenty groups of mounting positions of a first telescopic oil cylinder connecting seat (8) are reserved on a large flange of the main driving box body (1); four anti-torsion oil cylinders (12) and four main drive supporting seats (13) are reserved at corresponding positions of eight connecting planes, namely the upper, the lower, the left and the right of the main drive box body (1) by the front shield (2), and welding positions of twenty groups of telescopic oil cylinder connecting seats II (9) are reserved at the same time; the first telescopic oil cylinder connecting seat (8) is of a cylindrical structure, a spherical groove is formed in the center of the first telescopic oil cylinder connecting seat, and the first telescopic oil cylinder connecting seat is connected with the main driving box body (1) through a connecting screw (5); the second telescopic oil cylinder connecting seat (9) is a frame-shaped welding part, and the bottom of the second telescopic oil cylinder connecting seat is welded on the front shield (2); the anti-torsion oil cylinders (12) are four in number, two are installed downwards, and two are installed towards the left; the main driving supporting seats (13) are four in number, two main driving supporting seats are installed upwards, and two main driving supporting seats are installed rightwards; the torsion-proof oil cylinder (12) and the main drive supporting seat (13) are rigidly connected with the front shield (2), and a second end cover (126) of the torsion-proof oil cylinder (12) and a third end cover (134) of the main drive supporting seat (13) are tightly attached to the plane of the main drive box body (1) to realize clamping of the main drive, so that the rotation torque is transmitted to the front shield (2) to prevent the main drive from twisting; the telescopic oil cylinder (10) connects the main driving box body (1) and the front shield (2) through a first telescopic oil cylinder connecting seat (8) and a second telescopic oil cylinder connecting seat (9), the initial stroke of the oil cylinder is 30mm, and the extension and the contraction of the main driving and the cutter head (20) can be realized by increasing or reducing the stroke of the oil cylinder.
2. The extra large diameter shield tunneling machine main drive aligning and anti-twisting device of claim 1, characterized in that: the telescopic oil cylinder (10) comprises a cylinder barrel I (101), a piston I (102), a piston rod I (103), a ball head I (104) and an end cover I (105); the bottom of the cylinder barrel I (101) is connected with a second telescopic oil cylinder connecting seat (9) through a pin shaft (3), and the pin shaft (3) is limited through a clamping block (4) and a second connecting bolt (7); the first ball head (104) is of a spherical structure; the center of the first end cover (105) is a spherical surface, and the spherical surface is machined with a spherical groove of the first telescopic oil cylinder connecting seat (8) and is matched with a first ball head (104) in a spherical hinge mode; the first end cover (105) is connected with the first telescopic oil cylinder connecting seat (8) through a first connecting bolt (6); the stroke of the telescopic oil cylinder (10) is 200mm, the initial stroke is 30mm, and the main drive and the extension and retraction of the cutter head (20) can be realized by increasing or reducing the stroke of the oil cylinder.
3. The ultra-large diameter shield tunneling machine main drive aligning and anti-twisting device according to claim 1, characterized in that: the telescopic oil cylinders (10) are divided into A, B, C three groups, and during floating centering, the main driving floating centering function is realized by adjusting the spherical hinge structures of the anti-torsion oil cylinders (12) and the main driving supporting seats (13) according to the difference of the stroke of each group of oil cylinders.
4. The extra large diameter shield tunneling machine main drive aligning and anti-twisting device of claim 1, characterized in that: the torsion-proof oil cylinder (12) is of a spherical hinge structure and comprises a cylinder II (121), a piston II (122), a piston rod II (123), a ball head II (124), a ball head bolt I (125), an end cover II (126) and a screw I (127), and the torsion-proof oil cylinder (12) is rigidly connected with the front shield (2) through the cylinder II (121) by using a connecting bolt III (11); the matching surfaces of the second piston rod (123) and the second ball head (124) are spherical surfaces and are connected through a first ball head bolt (125); the matching surface of the first ball stud (125) and the second ball stud (124) is a spherical surface; the second end cover (126) is made of high-strength alloy and is connected with the second ball head (124) through a first screw (127); the total stroke of the anti-twist oil cylinder (12) is 70mm, and when the anti-twist oil cylinder is tightly attached to the plane of the main driving box body (1), the set stroke of the oil cylinder is 35 mm.
5. The extra large diameter shield tunneling machine main drive aligning and anti-twisting device of claim 1, characterized in that: the main driving support seat (13) is of a spherical hinge structure and comprises a base (131), a ball head III (132), a ball head bolt II (133), an end cover III (134) and a screw II (135); the main driving support seat (13) is connected with the front shield (2) through a base (131) by using a third connecting bolt (11); the matching surfaces of the base (131) and the ball head III (132) are spherical surfaces and are connected through a ball head bolt II (133); the matching surface of the second ball stud (133) and the third ball stud (132) is a spherical surface; the third end cover (134) is made of high-strength alloy and is connected with the third ball head (132) through a second screw (135).
6. The extra large diameter shield tunneling machine main drive aligning and anti-twisting device of claim 1, characterized in that: the pin shaft (3) is of a cylindrical structure, and one end of the pin shaft is provided with a groove with the depth of 10mm and the width of 23 mm.
7. The main drive aligning and anti-twisting device of the extra-large diameter shield tunneling machine according to any one of claims 1-6, characterized in that: the fixture block (4) is of a rectangular structure with the height of 22 mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122918360.8U CN216518009U (en) | 2021-11-25 | 2021-11-25 | Super large diameter shield constructs owner and drives aligning and prevent turning round device |
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| CN202122918360.8U CN216518009U (en) | 2021-11-25 | 2021-11-25 | Super large diameter shield constructs owner and drives aligning and prevent turning round device |
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| CN216518009U true CN216518009U (en) | 2022-05-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114075982A (en) * | 2021-11-25 | 2022-02-22 | 济南重工集团有限公司 | Main drive aligning and anti-twisting device for super-large-diameter shield machine |
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2021
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114075982A (en) * | 2021-11-25 | 2022-02-22 | 济南重工集团有限公司 | Main drive aligning and anti-twisting device for super-large-diameter shield machine |
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