Hydraulic assembly platform for main drive pinion of shield tunneling machine and use method of hydraulic assembly platform

Abstract

The invention discloses a shield tunneling machine main drive pinion hydraulic assembly platform and a using method.The assembly platform comprises a pinion loading platform, a grabbing sleeve and a pinion adjusting device.The shield tunneling machine main drive pinion hydraulic assembly platform is of an integrated structure, is high in integrity and firm in structure, has the high compression resistance, tensile resistance and deformation resistance effects, and is suitable for large-scale popularization and application. During use, the pinion only needs to be installed on the platform, the pinion loading platform is used for carrying out containing and transverse installation on the pinion, maintenance work of a main drive is facilitated, the number of workers needed during assembly is reduced, the difficulty of posture adjustment of the pinion during transverse installation is lowered, and the working efficiency is improved. The labor intensity is reduced while the labor time is reduced, the maintenance efficiency is improved, the rework period is guaranteed, and the cost is reduced.

Description

Technical Field

[0001] The invention relates to a hydraulic assembly platform for a main drive pinion of a shield machine and a use method thereof, belonging to the technical field of maintenance of a main drive pinion of a shield machine. Background Art

[0002] At present, shield machines are widely used in various underground tunnel constructions, among which the installation quality and accuracy of the main drive pinion and subsequent maintenance directly affect the operating efficiency and service life of the equipment. When the main drive pinion of the shield machine is damaged underground, the main problems in its disassembly and maintenance are as follows: 1) When the shield machine is underground, the main drive pinion is installed from axially perpendicular to the ground to axially parallel to the ground, and one end of the pinion is a spherical roller bearing. During the installation process, bumping or vibration can cause the outer ring of the bearing to axially offset, greatly increasing the difficulty of positioning during installation; 2) During traditional disassembly and installation, it is necessary to use hand winches and other lifting tools to manually adjust the axial and radial posture of the main drive pinion, and use knocking and other methods to install the workpiece, which is easy to cause the workpiece to be bumped and scratched, labor-intensive, and low installation efficiency; 3) Since the main drive pinion axial direction cannot be effectively fixed during hoisting, and the space during installation is extremely narrow, it is easy to cause the center of gravity to be unbalanced during disassembly or installation, causing the workpiece to fall, damage other workpieces and cause safety risks. Therefore, it is particularly important to develop a tooling that can improve the installation accuracy and efficiency of the main drive pinion during the lateral assembly underground and ensure the safety of the assembly. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a hydraulic assembly platform for the main drive pinion of a shield machine and a use method thereof in view of the defects in the prior art, so as to improve the efficiency of disassembly, assembly and maintenance and ensure the safety of personnel and equipment.

[0004] To solve this technical problem, the present invention provides a hydraulic assembly platform for the main driving pinion of a shield machine, including a pinion loading platform, a gripping sleeve and a pinion adjusting device. A pinion fixing shaft is provided at one end of the pinion, and a pinion spline shaft is provided at the other end; a pinion bearing is provided on the pinion fixing shaft, and a pinion adjusting device is provided between the pinion bearing and the pinion; the gripping sleeve includes a pinion fastening flange, a clamping plate fastening flange, a clamping plate connecting pipe and a clamping plate, the pinion fastening flange is welded to the end face on one side of the clamping plate connecting pipe, the end face on one side of the clamping plate fastening flange is welded to the end face opposite to the clamping plate connecting pipe and the pinion fastening flange, the clamping plate fastening flange is coupled to the clamping plate by clamping plate screws; the cylinder connecting flange is coupled to the pinion fastening flange by connecting flange screws; the pinion loading platform includes an end plate, a cylinder seat arc plate, a cylinder, a cylinder seat connecting flange, a pinion seat connecting flange, a pinion seat arc plate, a connecting sleeve and a cylinder connecting flange, the cylinder seat connecting flange The pinion gear seat connecting flange is connected by the cylinder seat connecting screws; the pinion gear is arranged on the pinion gear seat arc plate, and the pinion gear spline shaft axially penetrates the pinion gear fastening flange, the clamp plate fastening flange and the clamp plate connecting pipe, and the clamp plate fastening flange is meshed with the pinion gear spline shaft; the pinion gear connecting screw is screwed into the pinion gear lifting hole along the center through hole of the pinion gear fastening flange and tightened; the clamp plate is radially inserted into the pinion gear retreat groove along the pinion gear spline shaft, so that the threaded hole of the clamp plate is aligned with the through hole of the clamp plate fastening flange, and the clamp plate screw is screwed into the threaded hole of the clamp plate along the through hole of the clamp plate fastening flange and tightened; the oil cylinder is operated to make the oil cylinder connecting flange close to the pinion gear fastening flange, and the oil cylinder connecting flange is connected to the pinion gear fastening flange by the connecting flange screws; the oil cylinder makes the pinion gear move forward slowly, and when it is close to the large gear ring, it stops moving and uses a tool to clamp the connecting sleeve to adjust the circumferential angle of the pinion gear. When it is in a meshing position with the inner teeth of the large gear ring, it continues to move forward and makes the pinion gear bearing enter the pinion gear seat of the drive box until it is installed in place.

[0005] The inner diameters of the pinion fastening flange, the clamping plate fastening flange and the clamping plate connecting pipe are determined according to the diameter adjustment of different pinion spline shafts, and the internal gear ring of the clamping plate fastening flange matches the number of teeth and module of the pinion spline shaft.

[0006] The pinion adjustment device comprises a pad and a fixed magnet. The pad is arranged between the gap between the pinion bearing and the pinion, and the fixed magnet is used to adsorb the pad on the pinion.

[0007] The pinion gear loading platform adopts an arc plate structure, which can effectively accommodate the pinion gear and avoid radial sliding of the pinion gear; the pinion gear loading platform seat body is an integrated structure with segmented handles.

[0008] The cylinder is a single-stage hydraulic cylinder, which is controlled by the hydraulic system of the shield machine. The cylinder body diameter is slightly smaller than the diameter of the cylinder fixed upper arc plate and the cylinder fixed lower arc plate, and the cylinder body length is slightly smaller than the cylinder seat arc plate. During the propulsion process, support is added to the drive box spacer connecting flange position to adjust the position of the pinion bearing and the drive box pinion seat.

[0009] The pinion loading platform also includes an upper arc plate for fixing the oil cylinder, a connecting plate, a lifting ear, an angle steel for fixing the oil cylinder, and a lower arc plate for fixing the oil cylinder; the cylinder seat arc plate and the pinion seat arc plate are made of steel plates that are rolled into a whole circle and then cut into rectangular arc plates, and the axial length of the pinion seat arc plate is determined according to the length of the pinion; the end plate is made of two semicircular steel plates with different diameters, and its small circle diameter is the same as the diameter of the oil cylinder, and the large circle diameter is the same as the outer diameter of the oil cylinder seat arc plate; the large semicircle of the end plate is welded to the end face of one side of the oil cylinder seat arc plate, the cylinder seat connecting flange is welded to the end face of the other side of the oil cylinder seat arc plate opposite to the end plate, the pinion seat connecting flange is welded to the end face of one side of the pinion seat arc plate, the drive box connecting flange is welded to the end face of the other side of the pinion seat arc plate opposite to the pinion seat connecting flange, and the two cylinder fixed lower arc plates They are arranged on the inner semi-cylindrical side of the cylinder seat arc plate, one piece is close to the end plate, and the other piece is close to the cylinder seat connecting flange; the cylinder is placed on the inner circular surface of the two cylinder fixed lower arc plates, and the end face of the rodless side is in contact with the end plate plane, and the cylinder fixed upper arc plate is placed on the corresponding position of the cylinder fixed lower arc plate, and the cylinder is fastened by the cylinder fixing screws and cylinder fixing nuts; the larger side circular hole of the connecting sleeve is inserted into the cylinder piston rod and welded and fixed, and the cylinder connecting flange is welded to the other side end face of the connecting sleeve opposite to the cylinder piston rod, and there are eight ears in total, and four pieces are evenly welded at the four corners of the side section of the semi-cylinder of the cylinder seat arc plate and the pinion seat arc plate; the cylinder seat connecting flange and the pinion seat connecting flange are connected by the cylinder seat connecting screws, and the drive box connecting flange and the drive box are connected by the drive box connecting screws.

[0010] The cylinder seat connecting flange and the pinion seat connecting flange are circular sector-shaped steel plates divided by a full circle, and their inner diameters are the same as the inner diameters of the cylinder seat arc plate and the pinion seat arc plate, wherein the cylinder seat connecting flange is processed with eight through holes near its outer circle, and the pinion seat connecting flange is processed with eight threaded through holes at the pitch circle diameter and angle corresponding to the through holes of the cylinder seat connecting flange; the drive box connecting flange is a circular sector-shaped steel plate divided by a full circle, and its inner diameter is the same as the inner diameter of the pinion seat arc plate, and is processed at the pitch circle diameter and angle corresponding to the threaded holes in the lower half of the drive box spacer connecting flange There are eight through holes; the connecting sleeve is a cylindrical steel rod, and a stepped through hole is arranged in its axial center, wherein the small circle diameter is the same as the inner hole diameter of the cylinder connecting flange, the large circle diameter is slightly larger than the diameter of the cylinder piston rod, and its outer circle is knurled; the cylinder connecting flange is a circular steel plate, and sixteen through holes are processed near the outer circle; the pinion fastening flange is a circular steel plate, and sixteen threaded through holes are processed near the outer circle, the pitch circle diameter of the threaded through holes is the same as that of the cylinder connecting flange and is evenly distributed, and its outer circle diameter is the same as that of the cylinder connecting flange, and a through hole is processed in the center of the steel plate.

[0011] The splint fastening flange is a circular steel plate with sixteen through holes processed near the outer circle, and a gear ring is processed in its inner hole to mesh with the pinion spline shaft; the splint connecting pipe is a circular hollow steel pipe with an inner hole diameter slightly larger than the maximum diameter of the pinion spline shaft, and the sum of its length and the thickness of the splint fastening flange is equal to the length of the pinion spline shaft; the splint is a circular sector-shaped steel plate divided into two pieces by the whole circle, and sixteen threaded through holes are processed near the outer circle before division, the outer circle diameter is the same as that of the splint fastening flange, and the inner circle diameter is slightly smaller than the diameter of the pinion backing groove; the pad is a circular sector-shaped steel plate divided into two pieces by the whole circle, the inner diameter is slightly smaller than the diameter of the pinion fixing shaft, the outer diameter is slightly larger than the maximum diameter of the pinion, and the thickness is slightly smaller than the spacing between the pinion and the pinion bearing; the fixed magnet is a rectangular permanent magnet.

[0012] The present invention also provides a method for using the above-mentioned shield machine main drive pinion hydraulic assembly platform, comprising the following steps:

[0013] 1) First, hoist the pinion so that the pinion fixed shaft faces upwards, heat-fit the pinion bearing until the pinion fixed shaft is in place, insert two pads into the gap between the pinion bearing and the pinion to fix the pinion bearing to prevent axial deviation, and adsorb the two pads on the pinion through two fixing magnets;

[0014] 2) Turn the hoisting pinion over so that the pinion spline shaft faces upwards, insert the pinion fastening flange, the clamp fastening flange and the clamp connecting pipe axially into the pinion spline shaft to the bottom, the clamp fastening flange and the pinion spline shaft are meshed, and use the pinion connecting screw to screw into the pinion hoisting hole along the center through hole of the pinion fastening flange and tighten it;

[0015] 3) Insert the two clamps into the pinion gear retreat groove along the radial direction of the pinion gear spline shaft, align the clamp threaded holes with the clamp fastening flange through holes, take the clamp screws and screw them into the clamp threaded holes along the clamp fastening flange through holes and tighten them;

[0016] 4) Lift the lifting lug, pinion seat connecting flange, pinion seat arc plate and drive box connecting flange welded parts horizontally to the drive box spacer connecting flange, and align the eight through holes of the drive box connecting flange with the threaded holes in the lower half of the drive box spacer connecting flange, and then screw the drive box connecting screws along the through holes of the drive box connecting flange into the threaded holes in the lower half of the drive box spacer connecting flange and tighten them;

[0017] 5) Lift the end plate, cylinder seat arc plate, cylinder, cylinder fixed upper arc plate, connecting plate, lifting lugs, cylinder fixing screws, cylinder fixing nuts, cylinder fixing angle steel, cylinder fixing lower arc plate, cylinder seat connecting flange, connecting sleeve and cylinder connecting flange assembly to the pinion seat connecting flange, and align the eight through holes of the cylinder seat connecting flange with the threaded holes of the pinion seat connecting flange, then screw the cylinder seat connecting screws into the threaded holes of the pinion seat connecting flange along the through holes of the cylinder seat connecting flange and tighten;

[0018] 6) Lift the pinion to the pinion seat arc plate, with the spline shaft of the pinion facing the cylinder. Operate the cylinder so that the cylinder connecting flange is close to the pinion fastening flange. Turn the pinion so that the cylinder connecting flange through hole is aligned with the pinion fastening flange threaded hole. Then use the connecting flange screw to screw into the threaded hole of the pinion fastening flange along the cylinder connecting flange through hole and tighten.

[0019] 7) Operate the oil cylinder to slowly move the pinion forward. When it is close to the large gear ring, stop moving and use a tool to clamp the connecting sleeve and adjust the circumferential angle of the pinion. When it is in meshing position with the inner teeth of the large gear ring, continue to move forward and allow the pinion bearing to enter the pinion seat of the drive box. Stop pushing after entering 10mm, take out the fixed magnet and pad through the observation port of the drive box, and continue to push until it is installed in place;

[0020] 8) After the pinion is installed, remove the clamping plate screws, connecting flange screws, pinion connecting screws, cylinder seat connecting screws and drive box connecting screws in sequence, remove the gripping sleeve and pinion loading platform components, and repeat steps 1)-7) to install the remaining pinions.

[0021] The inner diameters of the pinion fastening flange, the clamping plate fastening flange and the clamping plate connecting pipe weldment in step 2) are adjusted according to the diameters of the different pinion spline shafts, and the internal gear ring of the clamping plate fastening flange is adjusted according to the number of teeth and module of the pinion spline shaft;

[0022] The oil cylinder described in step 7) is controlled by the hydraulic system of the shield machine. During the advancement process, a support is added to the connecting flange of the drive box spacer to adjust the position of the pinion bearing and the drive box pinion seat, so that the adjustment is more precise.

[0023] Beneficial effects: The present invention is an integrated structure with high integrity and a firm structure. It has relatively strong compression resistance, tension resistance and deformation resistance. The gripping sleeve can simply and efficiently fix the pinion gear, and the pinion gear loading platform is used to hold and install the pinion gear horizontally, which is convenient for the main drive maintenance work. When using the present invention, you only need to install the pinion gear on the platform, and you can quickly assemble the pinion gear horizontally in the hole, which reduces the number of people required for assembly, reduces the difficulty of adjusting the pinion gear posture during horizontal installation, reduces labor time and labor intensity, improves maintenance efficiency, ensures the resumption of work period, and reduces costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 For the present invention Figure 1 AA direction schematic diagram;

[0026] Figure 3 For the present invention Figure 1 BB direction schematic diagram;

[0027] Figure 4 For the present invention Figure 1 CC direction schematic diagram;

[0028] Figure 5 For the present invention Figure 1 DD direction schematic diagram;

[0029] Figure 6 For the present invention Figure 1 EE direction schematic diagram;

[0030] Figure 7 For the present invention Figure 1 FF direction schematic diagram;

[0031] Figure 8 For the present invention Figure 1 G-direction schematic diagram;

[0032] Fig. 9 This is a schematic diagram of the structure of the connecting flange screws of the present invention;

[0033] Fig.10 It is a schematic cross-sectional view of the pinion of the present invention.

[0034] In the figure: 1. End plate; 2. Cylinder seat arc plate; 3. Cylinder; 4. Cylinder fixing upper arc plate; 5. Connecting plate; 6. Lifting ear; 7. Cylinder fixing screw; 8. Cylinder fixing nut; 9. Cylinder fixing angle steel; 10. Cylinder fixing lower arc plate; 11. Cylinder seat connecting screw; 12. Cylinder seat connecting flange; 13. Pinion seat connecting flange; 14. Pinion seat arc plate; 15. Drive box connecting screw; 16. Drive box connecting flange; 17. Connecting sleeve; 18. Connecting flange screw; 19. Cylinder connecting flange; 20. Pinion connecting screw ; 21. Pinion fastening flange; 22. Clamp screw; 23. Clamp fastening flange; 24. Clamp connecting pipe; 25. Clamp; 26. Fixed magnet; 27. Pad; 28. Pinion loading platform; 29. ​​Gripping sleeve; 30. Pinion adjustment device; 31. Drive box; 32. Pinion; 33. Pinion bearing; 34. Pinion spline shaft; 35. Pinion fixing shaft; 36. Pinion backing groove; 37. Pinion lifting hole; 38. Drive box observation port; 39. Drive box spacer connecting flange; 40. Drive box pinion seat. DETAILED DESCRIPTION

[0035] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0036] like Figure 1-Figure 10As shown, the present invention provides a hydraulic assembly platform for the main drive pinion of a shield machine, including a pinion loading platform 28, a gripping sleeve 29 and a pinion adjusting device 30, wherein a pinion fixing shaft 35 is provided at one end of the pinion 32, and a pinion spline shaft 34 is provided at the other end; a pinion bearing 33 is provided on the pinion fixing shaft 35, and a pinion adjusting device 30 is provided between the pinion bearing 33 and the pinion 32; the gripping sleeve 29 includes a pinion fastening flange 21, a clamping plate fastening flange 23, a clamping plate connecting pipe 24 and a clamping plate 25, wherein the pinion fastening flange 21 is welded to an end face on one side of the clamping plate connecting pipe 24, and its axial center line coincides with the axial center line of the clamping plate connecting pipe 24; the clamping plate 25 is close to the outer The axial center lines of the threaded holes at the circle coincide with the axial center lines of the through holes at the clamping plate fastening flange 23 near the outer circle respectively; one side end face of the clamping plate fastening flange 23 is welded to the end face opposite to the clamping plate connecting pipe 24 and the pinion fastening flange 21, and its axial center line coincides with the axial center line of the clamping plate connecting pipe 24, and the clamping plate fastening flange 23 and the clamping plate 25 are combined by the clamping plate screws 22; the connecting flange screws 18 penetrate into the through holes at the outer circle of the cylinder connecting flange 19, align the threaded holes of the pinion fastening flange 21 with the through holes of the cylinder connecting flange 19, and screw the connecting flange screws 18 that penetrate into the cylinder connecting flange 19 into the threaded holes of the pinion fastening flange 21 to combine the two; the pinion The gear loading platform 28 includes an end plate 1, a cylinder seat arc plate 2, a cylinder 3, a cylinder seat connecting flange 12, a pinion seat connecting flange 13, a pinion seat arc plate 14, a connecting sleeve 17 and a cylinder connecting flange 19, wherein the cylinder seat connecting flange 12 is connected to the pinion seat connecting flange 13 by a cylinder seat connecting screw 11; the pinion 32 is arranged on the pinion seat arc plate 14, and the pinion spline shaft 34 axially penetrates into the pinion fastening flange 21, the clamping plate fastening flange 23 and the clamping plate connecting pipe 24, and the clamping plate fastening flange 23 is meshed with the pinion spline shaft 34; the pinion connecting screw 20 is screwed into the pinion hoisting hole 37 along the center through hole of the pinion fastening flange 21 and fastened; the clamping plate 25 is screwed into the pinion hoisting hole 37 along the pinion spline shaft 34; the pinion connecting screw 20 is screwed into the pinion hoisting hole 37 along the center through hole of the pinion fastening flange 21 and fastened; the clamping plate 25 is screwed into the pinion spline shaft 34 along the pinion spline shaft 34; the pinion connecting screw 20 is screwed into the pinion hoisting hole 37 along the center through hole of the pinion fastening flange 21 and fastened; the clamping plate 25 is screwed into the pinion hoisting hole 37 ... The key shaft 34 is radially inserted into the pinion backing groove 36, so that the threaded hole of the clamp 25 is aligned with the through hole of the clamp fastening flange 23, and the clamp screw 22 is screwed into the threaded hole of the clamp 25 along the through hole of the clamp fastening flange 23 and tightened; the oil cylinder 3 is operated to make the oil cylinder connecting flange 19 close to the pinion fastening flange 21, and the oil cylinder connecting flange 19 is connected to the pinion fastening flange 21 through the connecting flange screw 18; the oil cylinder 3 makes the pinion 32 move forward slowly, and when it is close to the large gear ring, it stops moving and uses the pipe clamp tool to clamp the connecting sleeve 17 to adjust the circumferential angle of the pinion 32. When it is in a meshing position with the inner teeth of the large gear ring, it continues to move forward and allows the pinion bearing 33 to enter the drive box pinion seat 40 until it is installed in place.

[0037] The inner diameters of the pinion fastening flange 21 , the clamping plate fastening flange 23 and the clamping plate connecting tube 24 are determined according to the diameter adjustment of different pinion spline shafts 34 , and the internal gear ring of the clamping plate fastening flange 23 matches the number of teeth and module of the pinion spline shaft 34 .

[0038] The pinion adjustment device 30 includes a backing plate 27 and a fixed magnet 26 . The backing plate 27 is disposed between the pinion bearing 33 and the pinion 32 . The fixed magnet 26 is used to adsorb the backing plate 27 onto the pinion 32 .

[0039] The pinion loading platform 28 adopts an arc plate structure, which can effectively accommodate the pinion 32 and avoid radial sliding of the pinion 32, thereby further avoiding safety hazards such as workpiece knocking damage and object impact caused by workpiece instability; the pinion loading platform 28 seat body is a one-piece structure with segmented connection, with high integrity and firm structure, and has relatively strong compression resistance, tension resistance and deformation resistance, which can effectively fix the pinion 32, and the seat body adopts a segmented structure, which can be conveniently and quickly arranged in the limited space underground.

[0040] The cylinder 3 is a single-stage hydraulic cylinder, which is controlled by the hydraulic system of the shield machine. The cylinder body diameter of the cylinder 3 is slightly smaller than the diameter of the cylinder fixed upper arc plate 4 and the cylinder fixed lower arc plate 10, and the cylinder body length is slightly smaller than the cylinder seat arc plate 2. During the propulsion process, support is added at the position of the drive box spacer connecting flange 39 to adjust the position of the pinion bearing 33 and the drive box pinion seat 40, so that the position adjustment is more precise.

[0041] The pinion loading platform 28 also includes an upper arc plate 4 for fixing the oil cylinder, a connecting plate 5, a lifting ear 6, an angle steel 9 for fixing the oil cylinder, and a lower arc plate 10 for fixing the oil cylinder; the cylinder seat arc plate 2 and the pinion seat arc plate 14 are made of steel plates rolled in a whole circle and then cut into rectangular arc plates, and the axial length of the pinion seat arc plate 14 is determined according to the length of the pinion 32; the end plate 1 is made of two semicircular steel plates with different diameters, and its small circle diameter is the same as the diameter of the oil cylinder 3, and its large circle diameter is the same as the outer diameter of the oil cylinder seat arc plate 2; the large semicircle of the end plate 1 is welded to one side end face of the oil cylinder seat arc plate 2, and its semi-cylindrical side face is aligned with the semi-cylindrical side face of the oil cylinder seat arc plate 2, and the cylinder seat connecting flange 12 is welded to the other side end face of the oil cylinder seat arc plate 2 opposite to the end plate 1, and its inner semi-cylindrical side face is aligned with the outer diameter of the oil cylinder seat arc plate 2, and the ... The inner semi-cylindrical side of the cylinder seat arc plate 2 is aligned, the pinion seat connecting flange 13 is welded on one side end face of the pinion seat arc plate 14, and its inner semi-cylindrical side is aligned with the inner semi-cylindrical side of the pinion seat arc plate 14, the drive box connecting flange 16 is welded on the other side end face of the pinion seat arc plate 14 opposite to the pinion seat connecting flange 13, and its inner semi-cylindrical side is aligned with the inner semi-cylindrical side of the pinion seat arc plate 14, two cylinder fixed lower arc plates 10 are arranged on the inner semi-cylindrical side of the cylinder seat arc plate 2, one is close to the end plate 1, and the other is close to the cylinder seat connecting flange 12, the cylinder seat arc plate 2 coincides with the axis of the cylinder fixed lower arc plate 10 and the side profile of the semi-cylinder is parallel; the cylinder fixed angle steel 9 has a total of six pieces, and the two cylinder fixed lower arc plates 10 and the cylinder fixed lower arc plate 10 are connected to the cylinder seat. Three pieces are welded perpendicular to the outer cylindrical surface between the cylinder seat arc plates 2, one of which is perpendicular to the ground, and the other two are arranged on both sides of the first piece at 45°; the oil cylinder 3 is placed on the inner cylindrical surface of the two oil cylinder fixed lower arc plates 10, the axis coincides with the oil cylinder fixed lower arc plate 10, the end face of the rodless side is in contact with the plane of the end plate 1, the oil cylinder fixed upper arc plate 4 is placed on the corresponding position of the oil cylinder fixed lower arc plate 10, the through holes on the connecting plates 5 on both sides are aligned, and the oil cylinder 3 is fastened by the oil cylinder fixing screws 7 and the oil cylinder fixing nuts 8; the oil cylinder fixed upper arc plate 4 and the oil cylinder fixed lower arc plate 10 each have two pieces, which are cut into rectangular arc plates after being rolled into a full circle by steel plates, and a certain fastening gap should be cut between the two plates during the cutting process; the connecting plate 5 is a rectangular steel plate, and There are two φ14 through holes, the long side of the steel plate is the same as the axial length of the upper arc plate 4 and the lower arc plate 10 of the cylinder, and is welded to the upper arc plate 4 and the lower arc plate 10 of the cylinder; the larger circular hole of the connecting sleeve 17 is inserted into the piston rod of the cylinder 3 and welded and fixed, and the cylinder connecting flange 19 is welded to the other end face of the connecting sleeve 17 opposite to the piston rod of the cylinder 3, and its axis coincides with the connecting sleeve 17; the lifting lug 6 is a total of eight pieces, made of steel plate, and its thickness is the same as that of the cylinder seat arc plate 2 and the pinion seat arc plate 14. The lifting lug 6 is evenly welded at the four corners of the side section of the semi-cylinder of the cylinder seat arc plate 2 and the pinion seat arc plate 14, and the axial center line of the upper circular hole is perpendicular to the axial center line of the cylinder seat arc plate 2 and the pinion seat arc plate 14;The length of the cylinder fixing angle steel is slightly smaller than the radial spacing between the cylinder fixing lower arc plate 10 and the cylinder seat arc plate 2; the cylinder seat connecting flange 12 and the pinion seat connecting flange 13 are connected by the cylinder seat connecting screws 11, and the drive box connecting flange 16 and the drive box 31 are connected by the drive box connecting screws 15.

[0042] The cylinder seat connecting flange 12 and the pinion seat connecting flange 13 are circular sector-shaped steel plates divided by a full circle, and their inner diameters are the same as the inner diameters of the cylinder seat arc plate 2 and the pinion seat arc plate 14, wherein the cylinder seat connecting flange 12 is processed with eight φ14 through holes near its outer circle, and the through holes are evenly distributed; the pinion seat connecting flange 13 is processed with eight M12 threaded through holes at the pitch circle diameter and angle corresponding to the through holes of the cylinder seat connecting flange 12; the drive box connecting flange 16 is a circular sector-shaped steel plate divided by a full circle, and its inner diameter is the same as the inner diameter of the pinion seat arc plate 14, and is processed at the pitch circle diameter and angle corresponding to the threaded holes in the lower half of the drive box spacer connecting flange 39 There are eight φ14 through holes; the connecting sleeve 17 is a cylindrical steel rod, and a stepped through hole is provided in its axial center, wherein the small circle diameter is the same as the inner hole diameter of the cylinder connecting flange 19, and the large circle diameter is slightly larger than the piston rod diameter of the cylinder 3, and its outer circle is knurled; the cylinder connecting flange 19 is a circular steel plate, and sixteen φ14 through holes are processed near the outer circle, and the through holes are evenly distributed; the pinion fastening flange 21 is a circular steel plate, and sixteen M12 threaded through holes are processed near the outer circle, and the pitch circle diameter of the threaded through holes is the same as that of the cylinder connecting flange 19 and is evenly distributed, and its outer circle diameter is the same as that of the cylinder connecting flange 19, and a φ18 through hole is processed in the center of the steel plate.

[0043] The clamping plate fastening flange 23 is a circular steel plate, and sixteen φ14 through holes are processed near the outer circle, and the through holes are evenly distributed. The inner hole is processed with a gear ring, which meshes with the pinion spline shaft 34; the clamping plate connecting pipe 24 is a circular hollow steel pipe, and the diameter of its inner hole is slightly larger than the maximum diameter of the pinion spline shaft 34, and the sum of its length and the thickness of the clamping plate fastening flange 23 is equal to the length of the pinion spline shaft 34; the clamping plate 25 is a circular sector-shaped steel plate divided into two pieces by the whole circle, and before the division, Sixteen M12 threaded through holes are processed near the outer circle, and the through holes are evenly distributed. The outer circle diameter is the same as that of the clamping plate fastening flange 23, and the inner circle diameter is slightly smaller than the diameter of the pinion backing groove 36; the pad 27 is a circular sector-shaped steel plate divided into two parts by the whole circle, and its inner diameter is slightly smaller than the diameter of the pinion fixing shaft 35, the outer diameter is slightly larger than the maximum diameter of the pinion 32, and the thickness is slightly smaller than the distance between the pinion 32 and the pinion bearing 33; the fixed magnet 26 is a rectangular permanent magnet.

[0044] The oil cylinder fixing screw 7, oil cylinder seat connecting screw 11, drive box connecting screw 15, connecting flange screw 18, pinion connecting screw 20 and clamping plate screw 22 described in the present invention are all standard screws of national standard GB / T70.1-2008; the oil cylinder fixing nut 8 is a standard nut of national standard GB / T6170-2000.

[0045] The present invention also provides a method for using the above-mentioned shield machine main drive pinion hydraulic assembly platform, comprising the following steps:

[0046] 1) First, hoist the pinion 32 so that the pinion fixing shaft 35 faces upward, heat-fit the pinion bearing 33 until the pinion fixing shaft 35 is in place, insert the two pads 27 into the gap between the pinion bearing 33 and the pinion 32 to fix the pinion bearing 33 to prevent axial deviation, and adsorb the two pads 27 on the pinion 32 through the two fixing magnets 26;

[0047] 2) Turn over the hoisting pinion 32 so that the pinion spline shaft 34 faces upward, and insert the pinion fastening flange 21, the clamping plate fastening flange 23 and the clamping plate connecting pipe 24 welding parts axially into the pinion spline shaft 34 to the bottom, and the clamping plate fastening flange 23 is meshed with the pinion spline shaft 34. Use the pinion connecting screw 20 to screw into the pinion hoisting hole 37 along the φ18 through hole in the center of the pinion fastening flange 21 and tighten it;

[0048] 3) Insert the two clamping plates 25 into the pinion gear retreat groove 36 along the radial direction of the pinion gear spline shaft 34, align the threaded holes of the clamping plates 25 with the through holes of the clamping plate fastening flange 23, and screw the clamping plate screws 22 into the threaded holes of the clamping plates 25 along the through holes of the clamping plate fastening flange 23 and tighten them;

[0049] 4) Lift the lifting lug 6, the pinion seat connecting flange 13, the pinion seat arc plate 14 and the drive box connecting flange 16 welded parts horizontally to the drive box spacer connecting flange 39, and align the eight through holes of the drive box connecting flange 16 with the threaded holes in the lower half of the drive box spacer connecting flange 39, and then screw the drive box connecting screws 15 along the through holes of the drive box connecting flange 16 into the threaded holes in the lower half of the drive box spacer connecting flange 39 and tighten them;

[0050] 5) Lift the end plate 1, cylinder seat arc plate 2, cylinder 3, cylinder fixed upper arc plate 4, connecting plate 5, lifting ear 6, cylinder fixing screw 7, cylinder fixing nut 8, cylinder fixing angle steel 9, cylinder fixed lower arc plate 10, cylinder seat connecting flange 12, connecting sleeve 17 and cylinder connecting flange 19 assembly to the pinion seat connecting flange 13, and align the eight through holes of the cylinder seat connecting flange 12 with the threaded holes of the pinion seat connecting flange 13, and then screw the cylinder seat connecting screw 11 along the through hole of the cylinder seat connecting flange 12 into the threaded hole of the pinion seat connecting flange 13 and tighten it;

[0051] 6) Lift the pinion 32 onto the pinion seat arc plate 14, with one side of the pinion spline shaft 34 facing the cylinder 3, operate the cylinder 3 to make the cylinder connecting flange 19 close to the pinion fastening flange 21, rotate the pinion 32 to align the through hole of the cylinder connecting flange 19 with the threaded hole of the pinion fastening flange 21, and then use the connecting flange screw 18 to screw into the threaded hole of the pinion fastening flange 21 along the through hole of the cylinder connecting flange 19 and tighten it;

[0052] 7) Operate the oil cylinder 3 to slowly move the pinion 32 forward. When it is close to the large gear ring, stop moving and use a pipe clamp or other tool to clamp the connecting sleeve 17, adjust the circumferential angle of the pinion 32, and when it is in meshing position with the inner teeth of the large gear ring, continue to move forward and allow the pinion bearing 33 to enter the pinion seat 40 of the drive box. Stop pushing after entering 10 mm, take out the fixed magnet 26 and the pad 27 through the drive box observation port 38, and continue to push until they are installed in place;

[0053] 8) After the pinion 32 is installed, remove the clamping plate screws 22, the connecting flange screws 18, the pinion connecting screws 20, the cylinder seat connecting screws 11 and the drive box connecting screws 15 in sequence, remove the gripping sleeve 29 and the pinion loading platform 28, and repeat steps 1)-7) to install the remaining pinions 32.

[0054] The inner diameters of the pinion fastening flange 21, the clamping plate fastening flange 23 and the clamping plate connecting pipe 24 welded parts in step 2) are adjusted according to the diameters of the pinion spline shafts 34, and the internal gear ring of the clamping plate fastening flange 23 is adjusted according to the design data such as the number of teeth and module of the pinion spline shaft 34;

[0055] The oil cylinder 3 described in step 7) is controlled by the hydraulic system of the shield machine; during the advancement process, a support is added at the position of the drive box spacer connecting flange 39 to adjust the position of the pinion bearing 33 and the drive box pinion seat 40, so that the adjustment is more precise.

[0056] The present invention can effectively fix the pinion gear and use the oil cylinder to push the pinion gear, so that the pinion gear can be effectively and quickly positioned and installed in the well. The pinion gear loading platform seat body is a one-piece structure with segmented assembly, which has high integrity and firm structure, and has strong compression resistance, tension resistance and deformation resistance. The pinion gear can be effectively fixed, and the seat body adopts a segmented structure, which can be conveniently and quickly arranged in the limited space underground. Compared with the traditional manual knocking assembly using simple tooling, the present invention uses a gripping sleeve to completely fix the pinion gear spline shaft, and uses a pinion adjustment device to fix the pinion gear bearing, thereby avoiding its axial and radial deviation, which makes the installation The timing accuracy is greatly improved, and the pinion is pressure-assembled by using an oil cylinder, so that the pinion that was originally difficult to position and assemble can be easily entered into the pinion seat of the drive box, and the pressure of the oil cylinder is relatively concentrated, which can avoid assembly damage to the pinion and the pinion bearing caused by uneven force due to blunt impact, and the efficiency and accuracy of assembly are improved, which reduces labor time and labor intensity, and reduces damage to workpieces. The pinion loading platform of the present invention adopts an arc plate structure, which can effectively accommodate the pinion and avoid radial sliding of the pinion, thereby further avoiding safety hazards such as damage to the workpiece caused by instability of the workpiece and impact of objects.

[0057] The platform of the present invention is easy to operate, and the number of personnel required for assembly is greatly reduced compared with the past, which reduces labor time and labor intensity, thereby improving assembly efficiency and reducing costs. At the same time, rapid assembly of small gears is achieved underground, minimizing the impact on the underground construction period to the greatest extent.

[0058] The above embodiments of the present invention are merely illustrative and not exclusive, and all modifications within the scope of the present invention or equivalent to the scope of the present invention are encompassed by the present invention.

Claims

1. A hydraulic assembly platform for main drive pinion of a shield machine, characterized by: The invention comprises a pinion gear loading platform (28), a gripping sleeve (29) and a pinion gear adjusting device (30); a pinion gear fixing shaft (35) is provided at one end of the pinion gear (32), and a pinion gear spline shaft (34) is provided at the other end; a pinion gear fixing shaft (35) is provided with a pinion gear bearing (33), and a pinion gear adjusting device (30) is provided between the pinion gear bearing (33) and the pinion gear (32); the gripping sleeve (29) comprises a pinion gear fastening flange (21), a clamping plate fastening flange (23), a clamping plate connecting pipe (24) and a clamping plate (25); the pinion gear fastening flange (21) is welded to an end face of one side of the clamping plate connecting pipe (24), and the clamping plate fastening flange (23) is provided with a pinion gear fastening flange (21) and a clamping plate connecting pipe (24). ) one end face is welded to the end face of the clamping plate connecting pipe (24) opposite to the pinion fastening flange (21), and the clamping plate fastening flange (23) is connected to the clamping plate (25) by means of the clamping plate screws (22); the oil cylinder connecting flange (19) is connected to the pinion fastening flange (21) by means of the connecting flange screws (18); the pinion loading platform (28) comprises an end plate (1), an oil cylinder seat arc plate (2), an oil cylinder (3), an oil cylinder seat connecting flange (12), a pinion seat connecting flange (13), a pinion seat arc plate (14), a connecting sleeve (17) and an oil cylinder connecting flange (19), wherein the oil cylinder seat connecting flange (12) and the pinion seat connecting flange (13) is connected by the cylinder seat connecting screw (11); the pinion (32) is arranged on the pinion seat arc plate (14), the pinion spline shaft (34) axially penetrates the pinion fastening flange (21), the clamping plate fastening flange (23) and the clamping plate connecting pipe (24), and the clamping plate fastening flange (23) is meshed with the pinion spline shaft (34); the pinion connecting screw (20) is screwed into the pinion hanging hole (37) along the central through hole of the pinion fastening flange (21) and fastened; the clamping plate (25) is inserted into the pinion backing groove (36) along the pinion spline shaft (34) radially, so that the threaded hole of the clamping plate (25) is aligned with the through hole of the clamping plate fastening flange (23), and the clamping plate is clamped. The plate screw (22) is screwed into the threaded hole of the clamping plate (25) along the through hole of the clamping plate fastening flange (23) and fastened; the oil cylinder (3) is operated to make the oil cylinder connecting flange (19) close to the pinion fastening flange (21), and the oil cylinder connecting flange (19) is connected to the pinion fastening flange (21) through the connecting flange screw (18); the oil cylinder (3) makes the pinion (32) move forward slowly, and when it is close to the large gear ring, it stops moving and uses a tool to clamp the connecting sleeve (17) to adjust the circumferential angle of the pinion (32), and when it is in a meshing position with the inner teeth of the large gear ring, it continues to move forward and allows the pinion bearing (33) to enter the drive box pinion seat (40) until it is installed in place.

2. The hydraulic assembly platform for the main drive pinion of a shield machine according to claim 1, characterized in that: The inner diameters of the pinion fastening flange (21), the clamping plate fastening flange (23) and the clamping plate connecting pipe (24) are determined according to the diameter adjustment of different pinion spline shafts (34), and the number of teeth and module of the internal gear ring of the clamping plate fastening flange (23) match those of the pinion spline shaft (34).

3. The hydraulic assembly platform for the main drive pinion of a shield machine according to claim 1, characterized in that: The pinion adjustment device (30) comprises a backing plate (27) and a fixed magnet (26); the backing plate (27) is arranged between the gap between the pinion bearing (33) and the pinion (32); and the backing plate (27) is adsorbed onto the pinion (32) using the fixed magnet (26).

4. The hydraulic assembly platform for the main drive pinion of a shield machine according to claim 1, characterized in that: The pinion gear loading platform (28) adopts an arc plate structure, which can effectively accommodate the pinion gear (32) and prevent the pinion gear (32) from radial sliding; the base of the pinion gear loading platform (28) is an integrated structure with segmented joints.

5. The hydraulic assembly platform for the main drive pinion of a shield machine according to claim 1, characterized in that: The oil cylinder (3) is a single-stage hydraulic cylinder and is controlled by a hydraulic system of the shield machine. The diameter of the oil cylinder (3) is slightly smaller than the diameters of the oil cylinder fixed upper arc plate (4) and the oil cylinder fixed lower arc plate (10), and the length of the oil cylinder is slightly smaller than the oil cylinder seat arc plate (2). During the propulsion process, a support is added at the position of the drive box spacer connecting flange (39) to adjust the position of the pinion bearing (33) and the drive box pinion seat (40).

6. The hydraulic assembly platform for the main drive pinion of a shield machine according to claim 1, characterized in that: The pinion gear loading platform (28) further comprises an upper arc plate (4) for fixing the oil cylinder, a connecting plate (5), a lifting lug (6), an angle steel (9) for fixing the oil cylinder, and a lower arc plate (10) for fixing the oil cylinder; the cylinder seat arc plate (2) and the pinion gear seat arc plate (14) are made of steel plates rolled in a whole circle and then cut into rectangular arc plates, and the axial length of the pinion gear seat arc plate (14) is determined according to the length of the pinion gear (32); the end plate (1) is formed by splicing two semicircular steel plates with different diameters, the small circle diameter of which is the same as the diameter of the oil cylinder (3), and the large circle diameter is the same as the diameter of the oil cylinder (3). The diameter is the same as the outer diameter of the cylinder seat arc plate (2); the large semicircle of the end plate (1) is welded to the end face of one side of the cylinder seat arc plate (2); the cylinder seat connecting flange (12) is welded to the end face of the cylinder seat arc plate (2) opposite to the end plate (1); the pinion seat connecting flange (13) is welded to the end face of one side of the pinion seat arc plate (14); the drive box connecting flange (16) is welded to the end face of the pinion seat arc plate (14) opposite to the pinion seat connecting flange (13); the two cylinder fixing lower arc plates (10) are arranged The oil cylinder 3 is placed on the inner semi-cylindrical side of the oil cylinder seat arc plate (2), one piece is close to the end plate (1), and the other piece is close to the oil cylinder seat connecting flange (12); the oil cylinder 3 is placed on the inner circular surface of the two oil cylinder fixed lower arc plates (10), and the end surface of the rodless side is in contact with the plane of the end plate (1); the oil cylinder fixed upper arc plate (4) is placed on the corresponding position of the oil cylinder fixed lower arc plate (10), and the oil cylinder (3) is fastened by the oil cylinder fixing screw (7) and the oil cylinder fixing nut (8); the larger side circular hole of the connecting sleeve (17) is inserted into the oil cylinder (3) The plug rod is welded and fixed, the cylinder connecting flange (19) is welded to the other side end face of the connecting sleeve (17) and the piston rod of the cylinder (3), the lifting ears (6) are eight in total, four of which are evenly welded at the four corners of the side section of the semi-cylinder of the cylinder seat arc plate (2) and the pinion seat arc plate (14); the cylinder seat connecting flange (12) and the pinion seat connecting flange (13) are connected by the cylinder seat connecting screws (11), and the drive box connecting flange (16) and the drive box (31) are connected by the drive box connecting screws (15).

7. The hydraulic assembly platform for the main drive pinion of a shield machine according to claim 6, characterized in that: The cylinder seat connecting flange (12) and the pinion seat connecting flange (13) are circular sector-shaped steel plates divided by a full circle, and their inner diameters are the same as the inner diameters of the cylinder seat arc plate (2) and the pinion seat arc plate (14), wherein the cylinder seat connecting flange (12) is processed with eight through holes near its outer circle, and the pinion seat connecting flange (13) is processed with eight threaded through holes at a pitch circle diameter and angle corresponding to the through holes of the cylinder seat connecting flange (12); the drive box connecting flange (16) is a circular sector-shaped steel plate divided by a full circle, and its inner diameter is the same as the inner diameter of the pinion seat arc plate (14), and is processed with eight threaded through holes at a pitch circle diameter and angle corresponding to the threaded holes in the lower half of the drive box spacer connecting flange (39). The connecting sleeve (17) is a cylindrical steel rod, and a stepped through hole is arranged at its axial center, wherein the small circle diameter is the same as the inner hole diameter of the cylinder connecting flange (19), the large circle diameter is slightly larger than the piston rod diameter of the cylinder (3), and the outer circle is knurled; the cylinder connecting flange (19) is a circular steel plate, and sixteen through holes are processed near the outer circle; the pinion fastening flange (21) is a circular steel plate, and sixteen threaded through holes are processed near the outer circle, the pitch circle diameter of the threaded through holes is the same as that of the cylinder connecting flange (19) and is evenly distributed, the outer circle diameter is the same as that of the cylinder connecting flange (19), and a through hole is processed at the center of the steel plate.

8. The hydraulic assembly platform for the main drive pinion of a shield machine according to claims 1-7, characterized in that: The clamping plate fastening flange (23) is a circular steel plate, and is processed with sixteen through holes near the outer circle thereof, and its inner hole is processed with a gear ring, which meshes with the pinion spline shaft (34); the clamping plate connecting pipe (24) is a circular hollow steel pipe, and its inner hole diameter is slightly larger than the maximum diameter of the pinion spline shaft (34), and the sum of its length and the thickness of the clamping plate fastening flange (23) is equal to the length of the pinion spline shaft (34); the clamping plate (25) is a circular sector-shaped steel plate divided into two pieces by a whole circle, and before the division, the inner hole is connected to the inner hole of the clamping plate. Sixteen threaded through holes are processed near the outer circle, the outer diameter of which is the same as that of the clamping plate fastening flange (23), and the inner diameter is slightly smaller than the diameter of the pinion backing groove (36); the pad (27) is a circular sector-shaped steel plate divided into two parts by the whole circle, the inner diameter of which is slightly smaller than the diameter of the pinion fixing shaft (35), the outer diameter is slightly larger than the maximum diameter of the pinion (32), and the thickness is slightly smaller than the distance between the pinion (32) and the pinion bearing (33); the fixed magnet (26) is a rectangular permanent magnet.

9. A method for using the hydraulic assembly platform for the main drive pinion of a shield machine as claimed in any one of claims 1 to 8, characterized in that: The steps include: 1) First, hoist the pinion (32) so that the pinion fixing shaft (35) faces upward, heat-fit the pinion bearing (33) until the pinion fixing shaft (35) is in place, insert two pads (27) into the gap between the pinion bearing (33) and the pinion (32) to fix the pinion bearing (33) to prevent axial deviation, and adsorb the two pads (27) on the pinion (32) through two fixing magnets (26); 2) Turn the hoisting pinion (32) over so that the pinion spline shaft (34) faces upward, insert the pinion fastening flange (21), the clamping plate fastening flange (23) and the clamping plate connecting pipe (24) axially into the pinion spline shaft (34) to the bottom, mesh the clamping plate fastening flange (23) with the pinion spline shaft (34), and use the pinion connecting screw (20) to screw into the pinion hoisting hole (37) along the center through hole of the pinion fastening flange (21) and tighten it; 3) Insert the two clamping plates (25) into the pinion gear retreat groove (36) along the radial direction of the pinion gear spline shaft (34), align the threaded hole of the clamping plate (25) with the through hole of the clamping plate fastening flange (23), take the clamping plate screw (22), screw it into the threaded hole of the clamping plate (25) along the through hole of the clamping plate fastening flange (23) and tighten it; 4) Lift the welding parts of the lifting lug (6), the pinion seat connecting flange (13), the pinion seat arc plate (14) and the drive box connecting flange (16) horizontally to the drive box spacer connecting flange (39), and align the eight through holes of the drive box connecting flange (16) with the threaded holes of the lower half of the drive box spacer connecting flange (39), and then screw the drive box connecting screws (15) along the through holes of the drive box connecting flange (16) into the threaded holes of the lower half of the drive box spacer connecting flange (39) and tighten them; 5) Lift the end plate (1), cylinder seat arc plate (2), cylinder (3), cylinder fixing upper arc plate (4), connecting plate (5), lifting lug (6), cylinder fixing screw (7), cylinder fixing nut (8), cylinder fixing angle steel (9), cylinder fixing lower arc plate (10), cylinder seat connecting flange (12), connecting sleeve (17) and cylinder connecting flange (19) assembly to the pinion seat connecting flange (13), and align the eight through holes of the cylinder seat connecting flange (12) with the threaded holes of the pinion seat connecting flange (13), and then screw the cylinder seat connecting screw (11) along the through holes of the cylinder seat connecting flange (12) into the threaded holes of the pinion seat connecting flange (13) and tighten them; 6) Lift the pinion (32) onto the pinion seat arc plate (14), with one side of the pinion spline shaft (34) facing the cylinder (3), operate the cylinder (3) to bring the cylinder connecting flange (19) close to the pinion fastening flange (21), rotate the pinion (32) to align the through hole of the cylinder connecting flange (19) with the threaded hole of the pinion fastening flange (21), and then use the connecting flange screw (18) to screw into the threaded hole of the pinion fastening flange (21) along the through hole of the cylinder connecting flange (19) and tighten it; 7) Operate the oil cylinder (3) to slowly move the pinion (32) forward. When it is close to the large gear ring, stop moving and use a tool to clamp the connecting sleeve (17) to adjust the circumferential angle of the pinion (32). When it is in meshing position with the inner teeth of the large gear ring, continue to move forward and allow the pinion bearing (33) to enter the pinion seat (40) of the drive box. Stop pushing after entering 10 mm, take out the fixed magnet (26) and the pad (27) through the drive box observation port (38), and continue to push until it is installed in place; 8) After the pinion gear (32) is installed, remove the clamping plate screws (22), the connecting flange screws (18), the pinion gear connecting screws (20), the cylinder seat connecting screws (11) and the drive box connecting screws (15) in sequence, remove the gripping sleeve (29) and the pinion gear loading platform (28) and repeat steps 1) to 7) to install the remaining pinion gears (32).

10. The method for using the hydraulic assembly platform for the main drive pinion of a shield machine according to claim 9, characterized in that: In step 2), the inner diameters of the pinion fastening flange (21), the clamping plate fastening flange (23) and the clamping plate connecting pipe (24) welded parts are adjusted according to the diameters of the different pinion spline shafts (34), and the internal gear ring of the clamping plate fastening flange (23) is adjusted according to the number of teeth and the module of the pinion spline shaft (34); The oil cylinder (3) described in step 7) is controlled by the hydraulic system of the shield machine; during the advancement process, a support is added at the position of the drive box spacer connecting flange (39) to adjust the position of the pinion bearing (33) and the drive box pinion seat (40), so that the adjustment is more precise.

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