A method for installing a high-speed railway wheel rolling mill web roller assembly

Abstract

The application discloses a kind of installation methods of high-speed rail wheel rolling mill web plate roller assembly, belong to high-speed rail wheel rolling mill equipment maintenance field, the installation method includes using crane and installation tool I is inserted into web plate roller axle box with hollow shaft, and is matched, make bearing on web plate roller axle approach web plate roller axle box;Remove installation tool I, after installation tool II is installed on web plate roller axle box, extrude bearing and make it enter web plate roller axle box, simultaneously make web plate roller axle installation in place;After removing installation tool II, connecting pull rod with web plate roller axle;Install water baffle flange and web plate roller in the outer end of web plate roller axle, the beneficial effects of the application are that the application realizes the quick installation of web plate roller axle and bearing, reduces the damage of spare parts in the installation process, saves cost, ensures the safety and reliability of installation process, improves the installation efficiency on site.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-speed rail wheel rolling mill equipment maintenance, and particularly relates to a mounting method of a high-speed rail wheel rolling mill web plate roller assembly. BACKGROUND

[0002] The core equipment of wheel rolling is a wheel rolling mill, and the wheel rolling is mainly completed through mutual cooperation between left and right web plate rollers, left and right bevel rollers, left and right guide rollers, upper and lower centering rollers and a main roller. Figure 1 As shown in the figure, the working principle of the web plate roller rotation is as follows: 1) the control driving motor is rotated to drive the input shaft 1-1 of the reduction box 1 to rotate, and the driving motor and the input shaft of the reduction box 1 are connected through a shaft coupling; 2) the input shaft 1-1 of the reduction box 1 is rotated to drive the output shaft cylinder 1-2 of the reduction box 1 to rotate; 3) since the output shaft cylinder 1-2 of the reduction box 1 is connected with the hollow shaft 2 in close cooperation, under the auxiliary action of the bearing on the hollow shaft 2, the output shaft cylinder 1-2 of the reduction box 1 is rotated to drive the hollow shaft 2 to rotate; 4) since the hollow shaft 2 is connected with the web plate roller shaft 3 through a key, under the auxiliary action of the bearing 5 on the web plate roller shaft 3, the hollow shaft 2 is rotated to drive the web plate roller shaft 3 to rotate; in order to prevent the web plate roller shaft 3 from escaping during rotation, the web plate roller shaft 3 is pulled tight through the pull rod 6, the driving oil cylinder 7 and accessories; 5) since the web plate roller shaft 3 is connected with the web plate roller 8 through a spline, the web plate roller shaft 3 is rotated to drive the web plate roller 8 to rotate.

[0003] When the web plate roller shaft is installed, the bearing needs to be installed on the web plate roller shaft in advance and installed in the web plate roller shaft box together with the web plate roller shaft. In order to install the web plate roller shaft and the bearing in the web plate roller shaft box, since the web plate roller shaft box is fixed, the web plate roller shaft needs to be installed horizontally, which makes the hoisting and installation of the web plate roller shaft difficult and the installation efficiency low. When the bearing is installed in the web plate roller shaft box, the bearing is often installed by knocking, and the web plate roller shaft and the bearing are installed in place by the action of the oil cylinder driving the pull rod. Moreover, the connection between the web plate roller shaft and the pull rod needs to be installed multiple times, which may damage the thread of the pull rod or the web plate roller shaft, resulting in that the web plate roller shaft or the pull rod cannot be used normally, and the web plate roller shaft or the pull rod spare parts need to be replaced, which greatly increases the replacement cost, prolongs the fault handling time, reduces the production efficiency, and also causes waste of manpower and material resources. Therefore, the installation of the web plate roller shaft and the bearing in place needs multiple pulling of the pull rod and multiple knocking of the bearing, which results in low installation efficiency of the web plate roller shaft and the bearing, and may cause damage to the bearing, the web plate roller shaft and the pull rod, causing certain economic loss, causing on-site faults, reducing production efficiency, and causing waste of manpower and material resources.

[0004] The patent with the publication number CN 113770700 A discloses a dismounting method of a hollow shaft assembly of a high-speed rail wheel rolling mill, wherein the specific steps for installing the spoke roller shaft in place are as follows: 1) using a crane to lift the spoke roller shaft and inserting one end of the spoke roller shaft into the spoke roller shaft box body, when the spoke roller shaft bearing on the spoke roller shaft is half reinstalled, driving the oil cylinder to act in the direction of the spoke roller shaft until the pull rod contacts the spoke roller shaft; 2) rotating the pull rod to threadedly connect the pull rod with the spoke roller shaft, and after tightening the nut at the outer end of the pull rod, the nut contacts the oil cylinder piston rod; 3) driving the oil cylinder to act in the direction away from the spoke roller shaft to pull the spoke roller shaft into the spoke roller shaft box body; 4) after loosening the nut, rotating the pull rod to further threadedly connect the pull rod with the spoke roller shaft, and after tightening the nut, the nut contacts the oil cylinder piston rod; continue to install according to the method of steps 2) to 4) until the outer threaded segment on the pull rod is completely connected with the inner threaded segment at one end of the spoke roller shaft.

[0005] When installing the spoke roller shaft and the bearing in the spoke roller shaft box body, the above patent needs to drive the oil cylinder to act and repeatedly rotate the pull rod multiple times, and the bearing often needs to be installed into the spoke roller shaft box body with the aid of external force knocking. Therefore, there are still problems of low installation efficiency of the spoke roller shaft and the bearing, damage to the bearing, the spoke roller shaft and the pull rod, certain economic losses, on-site failures, reduced production efficiency, need for downtime for replacement and processing, and waste of manpower and material resources. SUMMARY

[0006] To solve the above technical problems, the present application provides a method for installing a spoke roller assembly of a high-speed rail wheel rolling mill, which realizes fast installation of the spoke roller shaft and the bearing, reduces damage to spare parts during installation, saves costs, ensures safety and reliability during installation, and improves on-site installation efficiency.

[0007] To achieve the above-mentioned purposes, the technical solution adopted by the present application to solve the technical problems is as follows: the method for installing the spoke roller assembly of the high-speed rail wheel rolling mill comprises the following steps:

[0008] Step 1: using a crane and an installation tool I to horizontally insert the spoke roller shaft into the spoke roller shaft box body and cooperate with the hollow shaft, so that the bearing on the spoke roller shaft approaches the spoke roller shaft box body;

[0009] Step 2: removing the installation tool I, installing the installation tool II on the spoke roller shaft box body, and extruding and pushing the bearing to make it enter the spoke roller shaft box body, while making the spoke roller shaft installed in place;

[0010] Step 3: after removing the installation tool II, connecting the pull rod with the spoke roller shaft;

[0011] Step 4: installing a water-blocking flange and a spoke roller on the outer end of the spoke roller shaft.

[0012] In the step 1, the installation tool I comprises a leveling operation frame connected with the lifting hook of the travelling crane, and one end of the leveling operation frame is detachably connected with one end of the spoke roller shaft.

[0013] The leveling operation frame comprises a boom, one end of the boom is detachably connected with the spline end of the spoke roller shaft through a clamping joint, and a counterweight is connected with the boom in the axial sliding positioning mode.

[0014] The clamping joint comprises a clamping cap clamped with the spline end of the spoke roller shaft, an installation plate is arranged in the clamping cap in an integral mode, the installation plate is threadedly connected with one end of the spoke roller shaft through a connecting bolt, and an operation port for screwing the connecting bolt is further arranged on the clamping cap.

[0015] A lifting lug connected with the lifting hook of the travelling crane is further fixed on the boom, and an operation handle is fixed on the end of the boom away from the clamping joint.

[0016] The installation tool I further comprises a horizontal positioning seat for horizontally positioning the spoke roller shaft to install the leveling operation frame, the horizontal positioning seat comprises a positioning seat body and clamping frames arranged at two ends of the positioning seat body, and the spoke roller shaft is horizontally placed after the two clamping frames are clamped with the two ends of the spoke roller shaft.

[0017] A plurality of connecting keys are arranged on the end of the spoke roller shaft matched with the hollow shaft in the outer periphery of the spoke roller shaft, an installation hole is arranged at one end of the hollow shaft, a key groove matched with the connecting key is arranged in the installation hole, and an inclined guide surface is arranged at the end of the connecting key away from the spoke roller.

[0018] The installation tool II comprises a positioning sleeve clamped with the outer periphery of the bearing, a guide cylinder connected with the end surface of the outer ring of the bearing in an abutting mode is slidably connected in the positioning sleeve, and the outer end of the guide cylinder is connected with a pushing component.

[0019] The positioning sleeve, the guide cylinder and the pushing component are all connected with the end surface of the spoke roller shaft box through a plurality of guide rods.

[0020] The positioning sleeve comprises two clamping pieces tightly connected after abutting, the central axis of the two clamping pieces is coincided with the central axis of the spoke roller shaft in a sliding connection mode of the two clamping pieces with the plurality of guide rods, and the pushing component comprises an installation bottom plate slidably connected with the plurality of guide rods, a pushing oil cylinder is installed on the side of the installation bottom plate close to the guide cylinder, and the piston rod of the pushing oil cylinder is connected with the center of the guide cylinder in an abutting mode.

[0021] The installation tool I and the installation tool II can be used for the installation of the spoke roller shaft of the large-sized wind turbine, the installation tool I can be used for the installation of the spoke roller shaft of the large-sized wind turbine in the horizontal direction, and the installation tool II can be used for the installation of the spoke roller shaft of the large-sized wind turbine in the vertical direction.

[0022] 1. The present application can quickly insert the spoke roller shaft into the spoke roller shaft box in a horizontal state by designing a mounting tool I matched with the travelling crane, until the bearing is close to the spoke roller shaft box, then after the designed mounting tool II is installed on the spoke roller shaft box, the bearing is installed in place together with the spoke roller shaft, without repeatedly adjusting the pull rod and knocking the bearing, the quick installation of the spoke roller shaft and the bearing is realized, the damage of the spare parts in the installation process is reduced, the cost is saved, the safety and reliability of the installation process is ensured, and the on-site installation efficiency is improved.

[0023] 2. The mounting tool I designed by the present application comprises a leveling operation frame and a horizontal positioning seat, the spoke roller shaft for installing the bearing is positioned to a horizontal state through the horizontal positioning seat, the leveling operation frame can be conveniently installed at one end of the spoke roller shaft, the leveling operation frame and the spoke roller shaft are lifted by the travelling crane, the counterweight on the leveling operation frame is slid to make the whole spoke roller shaft always in a horizontal state during lifting, the spoke roller shaft can be more quickly and stably inserted into the spoke roller shaft box, and the installation efficiency of the spoke roller shaft is improved.

[0024] 3. The mounting tool II designed by the present application comprises a positioning sleeve, a guide cylinder and a pushing component, all are connected with the spoke roller shaft box through a plurality of guide rods, the bearing is positioned through the positioning sleeve, and the central axis of the positioning sleeve coincides with the central axis of the spoke roller shaft, the pushing oil cylinder in the pushing component acts on the guide cylinder, the bearing outer ring end face is pushed through the guide cylinder, the bearing can be installed in place at one time together with the spoke roller shaft, and the knocking damage to the bearing is avoided. BRIEF DESCRIPTION OF DRAWINGS

[0025] The content expressed by each drawing in the present application specification and the marks in the drawings are briefly described as follows:

[0026] Figure 1 It is a structural schematic view of the spoke roller installation structure in the prior art;

[0027] Figure 2 It is a flow chart of the spoke roller assembly installation method of the present application;

[0028] Figure 3 It is a structural schematic view of the mounting tool I matched with the spoke roller shaft in the present application;

[0029] Figure 4 It is Figure 3 a structural schematic view of the leveling operation frame;

[0030] Figure 5 It is a structural schematic view of the mounting tool II used for installing the bearing and the spoke roller shaft in place in the present application;

[0031] Figure 6 It is Figure 5 an exploded view;

[0032] The marks in the above figure are: 1. speed reducer box, 1-1. input shaft, 1-2. output shaft cylinder, 2. hollow shaft, 2-1. mounting hole, 2-2. key groove, 3. web roller shaft, 4. web roller shaft box, 5. bearing, 6. pull rod, 7. driving oil cylinder, 8. web roller, 9. water retaining flange, 10. leveling operation frame, 10-1. boom, 10-2. clamping joint, 10-21. clamping cap, 10-22. mounting plate, 10-23. connecting bolt, 10-24. operation port, 10-3. counterweight, 10-4. lifting lug, 10-5. operation handle, 11. horizontal positioning seat, 11-1. positioning seat body, 11-2. clamping frame, 12. mounting tool II, 12-1. positioning sleeve, 12-11. clamping piece, 12-2. guide cylinder, 12-3. pushing part, 12-31. mounting bottom plate, 12-32. pushing oil cylinder, 12-4. guide rod, 13. connecting key, 13-1. inclined guide surface. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments of the present application. The following embodiments are used to explain the present application but not to limit the scope of the present application.

[0034] In the description of the present application, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0035] A specific embodiment of the present application is as shown in the drawings, the present application provides a mounting method of high-speed rail wheel rolling mill web roller assembly, wherein the web roller assembly comprises a web roller shaft 3 and bearings 5, pull rods 6 and web rollers 8 connected thereto, and the mounting method comprises the following steps: Figures 1-6

[0036] Step 1: use a crane and mounting tool I to horizontally insert the web roller shaft 3 into the web roller 8 shaft box 4 and cooperate with the hollow shaft 2, so that the bearings 5 on the web roller shaft 3 approach the web roller 8 shaft box 4.

[0037] Step 2: after removing the mounting tool I, install the mounting tool II 12 on the web roller 8 shaft box 4, push the bearings 5 into the web roller 8 shaft box 4, and at the same time, install the web roller shaft 3 in place at one time.

[0038] Step 3: after removing the mounting tool II 12, thread the pull rod 6 with the web roller shaft 3.​

[0039] Step 4: install the water retaining flange 9 and the web roller 8 on the outer end of the web roller shaft 3.

[0040] The present application can quickly insert the web roller shaft 3 into the web roller 8 shaft box 4 in a horizontal state by designing a mounting tool I cooperating with the crane, until the bearing 5 is close to the web roller 8 shaft box 4, then install the mounting tool II 12 designed on the web roller 8 shaft box 4, push the bearing 5 together with the web roller shaft 3 to the installation position, without repeatedly adjusting the pull rod 6 and knocking the bearing 5, realizing the quick installation of the web roller shaft 3 and the bearing 5, reducing the damage of spare parts in the installation process, saving cost, ensuring the safety and reliability of the installation process, and improving the installation efficiency on site.

[0041] Specifically, in the above step 1, the mounting tool I includes a leveling operation frame 10 connected with the lifting hook of the crane, one end of the leveling operation frame 10 is detachably connected with one end of the web roller shaft 3. The specific structure of the leveling operation frame 10 is that the leveling operation frame 10 includes a lifting rod 10-1, a lifting lug 10-4 connected with the lifting hook of the crane is fixed on the lifting rod 10-1, one end of the lifting rod 10-1 is detachably connected with the spline end of the web roller shaft 3 through a clamping joint 10-2, a counterweight 10-3 is slidably positioned and connected on the lifting rod 10-1 along the axial direction of the lifting rod 10-1, the counterweight 10-3 is fixed by abutting against the lifting rod 10-1 through a screw, which is used to adjust the web roller shaft 3 to be always in a horizontal state during lifting, facilitating the installation of the web roller shaft 3.

[0042] The clamping joint 10-2 includes a clamping cap 10-21 clamped and matched with the spline end of the web roller shaft 3, an installation plate 10-22 is arranged in the clamping cap 10-21, a threaded hole is arranged in the middle of the end face of the spline end of the web roller shaft 3, which is used to install the cover plate for positioning the web roller 8, the installation plate 10-22 is threadedly connected with the threaded hole of one end of the web roller shaft 3 through a connecting bolt 10-23, an operating port 10-24 for screwing the connecting bolt 10-23 is further arranged on the clamping cap 10-21, which makes the installation and dismounting of the leveling operation frame 10 more convenient and fast. Moreover, an operating handle 10-5 is fixed on the end of the lifting rod 10-1 away from the clamping joint 10-2, which facilitates the insertion of the web roller shaft 3 in the horizontal state into the web roller 8 shaft box 4 by holding and operating the operating handle 10-5.

[0043] The mounting tool I further includes a horizontal positioning seat 11 for horizontally positioning the web roller shaft 3 to install the leveling operation frame 10, the horizontal positioning seat 11 includes a positioning seat body 11-1 and clamping frames 11-2 arranged at both ends of the positioning seat body 11-1, the two clamping frames 11-2 can be arranged as V-shaped frames, after the two clamping frames 11-2 are clamped and connected with both ends of the web roller shaft 3, the web roller shaft 3 is horizontally placed, which facilitates the reliable installation of the leveling operation frame 10 on one end of the web roller shaft 3.

[0044] Specifically, the end of the spoke roller shaft 3 matched with the hollow shaft 2 is provided with a plurality of connecting keys 13 along the outer periphery, the end of the hollow shaft 2 is provided with a mounting hole 2-1, the mounting hole 2-1 is provided with a key groove 2-2 matched with the connecting key 13, and the end of the connecting key 13 away from the spoke roller 8 is provided with an inclined guide surface 13-1, so that the spoke roller shaft 3 is more easily matched with the hollow shaft 2, the situation that the connecting key 13 is collided due to over-rotation when the position of the connecting key 13 matched with the key groove 2-2 is adjusted by rotating the hollow shaft 2 is avoided, the position adjustment of the connecting key 13 matched with the key groove 2-2 is more reliable, and the matching efficiency is high.

[0045] Specifically, the mounting tool II 12 includes a positioning sleeve 12-1 matched with the outer periphery of the bearing 5, a guide cylinder 12-2 connected with the end face of the outer ring of the bearing 5 is slidably connected in the positioning sleeve 12-1, and the outer end of the guide cylinder 12-2 is connected with a pushing component 12-3. The positioning sleeve 12-1, the guide cylinder 12-2 and the pushing component 12-3 are all connected with the end face of the spoke roller shaft box 4 through a plurality of guide rods 12-4. The bearing 5 is positioned through the positioning sleeve 12-1, the end face of the outer ring of the bearing 5 is pushed through the guide cylinder 12-2 by the pushing component 12-3 acting on the guide cylinder 12-2, the bearing 5 can be installed in place at one time together with the spoke roller shaft 3, and the knocking damage to the bearing 5 is avoided.

[0046] The positioning sleeve 12-1 includes two clamping pieces 12-11 connected through fastening after abutting, the two clamping pieces 12-11 are slidably connected with the plurality of guide rods 12-4 so that the central axes of the two clamping pieces 12-11 coincide with the central axis of the spoke roller shaft 3 (or the bearing 5), the central axis of the guide cylinder 12-2 also coincides with the central axis of the spoke roller shaft 3 (or the bearing 5), and when the pushing component 12-3 acts on the center of the guide cylinder 12-2, the guide cylinder 12-2 can stably push the bearing 5, and the problem of pushing deflection is avoided. The clamping piece 12-11 includes a sleeving section matched with the outer periphery of the bearing 5, flange plates are arranged at the two ends of the sleeving section, guide holes I for installing the guide rods 12-4 are arranged on the flange plates, the opposite ends of the two flange plates are connected to form a mounting section, the mounting sections of the two clamping pieces 12-11 are connected through fastening after abutting through a bolt assembly, the bearing 5 can be tightly connected through the two clamping pieces 12-11, the positioning sleeve 12-1 is convenient to disassemble and install, and the central axis of the guide cylinder 12-2 also coincides with the central axis of the spoke roller shaft 3 (or the bearing 5), so that the guide cylinder 12-2 can stably push the bearing 5.

[0047] The guiding cylinder 12-2 comprises a cylinder body, a push plate is arranged at one end of the cylinder body, a mounting flange is arranged at the outer periphery of the cylinder body, a plurality of oppositely arranged guiding holes II are arranged on the push plate and the mounting flange, the guiding holes II are opposite to the corresponding guiding holes I on the positioning sleeve 12-1, and are used for mounting the guiding rods 12-4. Moreover, in order to facilitate observation of the situation that the bearing 5 is pushed into the shaft box body 4 of the spoke roller 8, a plurality of through holes are arranged on the surface of the push plate and are communicated with the inner cavity of the cylinder body, which also plays a weight-reducing role.

[0048] The pushing component 12-3 comprises a mounting bottom plate 12-31 which is slidably connected with the plurality of guiding rods 12-4, a plurality of guiding holes III are arranged on the outer periphery of the mounting bottom plate 12-31, the guiding holes III are oppositely arranged with the guiding holes II and the guiding holes I, so that after the guiding rods 12-4 are mounted on the end face of the spoke roller 8 shaft box body 4, the positioning sleeve 12-1, the guiding cylinder 12-2 and the mounting bottom plate 12-31 are sequentially mounted, the pushing oil cylinder 12-32 is mounted on the side of the mounting bottom plate 12-31 close to the guiding cylinder 12-2, the piston rod of the pushing oil cylinder 12-32 is in contact with the center of the push plate of the guiding cylinder 12-2, the center axes of the positioning sleeve 12-1, the guiding cylinder 12-2 and the pushing oil cylinder 12-32 coincide with the center axis of the spoke roller shaft 3 (or the bearing 5), and the stability of the guiding cylinder 12-2 pushing the bearing 5 is further ensured.

[0049] The method for installing the spoke roller 8 assembly of the high-speed rail wheel rolling mill by using the above-mentioned installation tool I, the installation tool II 12 and the crane is as follows:

[0050] Step 1: 1) horizontally position the spoke roller shaft 3: after the spoke roller shaft 3 is horizontally positioned by using the horizontal positioning seat 11, the clamping joint 10-2 of the leveling operation frame 10 is clamped and matched with the spline end of the spoke roller shaft 3, then the clamping joint 10-2 is connected with the spoke roller shaft 3 through the connecting bolt 10-23; after the lifting lugs 10-4 of the leveling operation frame 10 are hung by the hooks of the crane, the leveling operation frame 10 and the spoke roller shaft 3 are lifted, the counterweight block 10-3 is slidably adjusted so that the spoke roller shaft 3 is in a horizontal state, and then the counterweight block 10-3 is positioned and fixed by using the bolt.

[0051] 2) Install the web roller shaft 3: the crane hoists the web roller shaft 3 to the position opposite the web roller 8 shaft box 4, the hand holds the operating handle 10-5 and guides the web roller shaft 3 into the web roller 8 shaft box 4, the rear end surface of the web roller shaft 3 is in contact with the front end surface of the hollow shaft 2, the web roller shaft 3 is pushed in, the hollow shaft 2 is rotated by rotating the coupling between the hollow shaft 2 speed reducer and the motor, when the connecting key 13 on the web roller shaft 3 is in the matching position of the key groove 2-2 on the hollow shaft 2, the connecting key 13 is more easily guided into the front section of the key groove 2-2 due to the design of the inclined guide surface 13-1 of the front section of the connecting key 13, at this time the hollow shaft 2 key groove 2-2 is shaken left and right by the connecting key 13 in small amplitude, until the connecting key 13 is partially matched with the key groove 2-2 of the hollow shaft 2, at this time the web roller shaft 3 is installed in the web roller 8 shaft box 4, but it is not installed in place with the hollow shaft 2, the bearing 5 on the web roller shaft 3 is close to the end surface of the web roller 8 shaft box 4.

[0052] Step 2: 1) Remove the leveling operation frame 10: remove the connecting bolts 10-23 at the end of the leveling operation frame 10, separate the leveling operation frame 10 from the web roller shaft 3. 2) Install installation tool II 12: install multiple guide rods 12-4 in the installation holes on the end surface of the web roller 8 shaft box 4, install a push oil cylinder 12-32 at the center of the installation base plate 12-31; install two clamping pieces 12-11, a guide cylinder 12-2 and an installation base plate 12-31 in sequence on the guide rod 12-4, so that the bearing 5 is located in the two clamping pieces 12-11, the two clamping pieces 12-11 are connected by the bolt assembly, the center axis of the positioning sleeve 12-1 is coincided with the center axis of the web roller shaft 3 (or the bearing 5), the guide cylinder 12-2 is matched with the positioning sleeve 12-1, the piston rod of the push oil cylinder 12-32 is opposite to one end of the guide cylinder 12-2; install a locking nut on the end of the guide rod 12-4 extending from the installation base plate 12-31, so that the piston rod of the push oil cylinder 12-32 abuts against one end of the guide cylinder 12-2, and the other end of the guide cylinder 12-2 abuts against the outer ring end surface of the bearing 5. 3) Drive the push oil cylinder 12-32 to act, the piston rod of the push oil cylinder 12-32 pushes the guide cylinder 12-2 to extrude the outer ring end surface of the bearing 5 along the guide rod 12-4, drives the bearing 5 and the web roller shaft 3 into the web roller 8 shaft box 4 until it is installed in place.

[0053] Step 3: 1) dismounting installation tool II 12: sequentially dismounting locking nuts, installation bottom plate 12-31, guide cylinder 12-2, two clamping pieces 12-11 and multiple guide rods 12-4. 2) connecting the pull rod 6 with the web roller shaft 3: unscrewing the fixing bolt of the piston rod of the driving oil cylinder 7 and the pull rod 6, rotating the pull rod 6, and connecting the pull rod 6 with the web roller shaft 3 through screw connection; after the pull rod 6 is connected with the web roller shaft 3 through screw connection and is fastened in place, the fixing bolt of the piston rod of the driving oil cylinder 7 and the pull rod 6 is tightened, so that the pull rod 6 tightly pulls the web roller shaft 3, and then the web roller shaft 3 and the bearing 5 are installed in place.

[0054] Step 4: installing the water blocking flange 9 at the outer end of the web roller shaft 3, and using a traveling crane to reinstall the web roller 8 and positioning and fixing the web roller 8 through a gland.

[0055] In conclusion, the present application realizes the quick installation of the web roller shaft and the bearing, reduces the damage of spare parts in the installation process, saves the cost, ensures the safety and reliability of the installation process, and improves the on-site installation efficiency.

[0056] The above description is only used to illustrate some principles of the present application, and the present description is not intended to limit the present application to the specific structures and application ranges shown and described, so that all possible corresponding modifications and equivalents belong to the patent scope of the present application.

Claims

1. A method for installing a spoke roll assembly of a high-speed railway wheel rolling mill, characterized in that, The method comprises the following steps: Step 1: horizontally inserting the spoke roller shaft into the spoke roller shaft box and cooperating with the hollow shaft by using the travelling crane and the installation tool I, so that the bearing on the spoke roller shaft is close to the spoke roller shaft box; Step 2: removing the installation tool I, installing the installation tool II on the spoke roller shaft box, pushing the bearing into the spoke roller shaft box, and installing the spoke roller shaft in place; Step 3: removing the installation tool II, and connecting the pull rod with the spoke roller shaft; Step 4: installing the water blocking flange and the spoke roller on the outer end of the spoke roller shaft. The installation tool II comprises a positioning sleeve which is in clamping connection with the outer periphery of the bearing, a guide cylinder which is in sliding connection in the positioning sleeve and is in abutting connection with the end face of the outer ring of the bearing, and a pushing component which is connected with the outer end of the guide cylinder; the positioning sleeve, the guide cylinder and the pushing component are all connected with the end face of the spoke roller shaft box through a plurality of guide rods; the positioning sleeve comprises two clamping pieces which are in abutting connection after being fastened, and the two clamping pieces are in sliding connection with the plurality of guide rods so that the central axis of the two clamping pieces coincides with the central axis of the spoke roller shaft; the pushing component comprises an installation base plate which is in sliding connection with the plurality of guide rods, and a pushing oil cylinder which is installed on the side of the installation base plate close to the guide cylinder and whose piston rod is in abutting connection with the center of the guide cylinder.

2. The method of installing a high speed rail wheel mill pad roller assembly of claim 1 wherein: In the step 1, the installation tool I comprises a leveling operation frame which is connected with the hook of the travelling crane, and one end of the leveling operation frame is detachably connected with one end of the spoke roller shaft.

3. The method of installing a high speed rail wheel mill pad roller assembly of claim 2 wherein: The leveling operation frame comprises a hanger rod, one end of the hanger rod is detachably connected with the spline end of the spoke roller shaft through a clamping joint, and a counterweight is in sliding positioning connection with the hanger rod along the axial direction of the hanger rod.

4. The method of installing a high speed rail wheel mill pad roller assembly of claim 3, wherein: The clamping joint comprises a clamping cap which is in clamping connection with the spline end of the spoke roller shaft, an installation plate which is integrally arranged in the clamping cap, the installation plate is in threaded connection with one end of the spoke roller shaft through a connecting bolt, and an operation port for screwing the connecting bolt is further arranged on the clamping cap.

5. The method of installing a high speed rail wheel mill pad roller assembly of claim 3 wherein: A lifting lug which is connected with the hook of the travelling crane is further fixed on the hanger rod, and an operation handle is fixed on the end of the hanger rod away from the clamping joint.

6. The method of installing a high speed rail wheel mill pad roller assembly of claim 2 wherein: The installation tool I further comprises a horizontal positioning seat which is used for horizontally positioning the spoke roller shaft to install the leveling operation frame, the horizontal positioning seat comprises a positioning seat body and clamping frames which are arranged at both ends of the positioning seat body, and the spoke roller shaft is horizontally placed after the two clamping frames are in clamping connection with both ends of the spoke roller shaft.

7. The method of installing a high speed rail wheel mill pad roller assembly of claim 1 wherein: A plurality of connecting keys are arranged along the outer periphery of one end of the spoke roller shaft which is cooperated with the hollow shaft, an installation hole is arranged at one end of the hollow shaft, a key groove which is matched with the connecting keys is arranged in the installation hole, and an inclined guide surface is arranged at the end of the connecting key away from the spoke roller.

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