Slewing bearing assembly tool and assembly method

Abstract

The embodiment of the application relates to a slewing bearing assembly tool and an assembly method, and belongs to the technical field of shield machine assembly, and aims to solve the technical problem that a radial roller is prone to falling off from a radial retainer in the process of hoisting the radial retainer and the radial roller in the related art. The slewing bearing assembly tool comprises a first connecting plate, a first connecting rod, a locking bolt, a locking nut and two limiting plates, the first end of the first connecting rod is connected with the first connecting plate, the second end of the first connecting rod is detachably connected with the radial retainer; the two limiting plates are oppositely arranged on the two sides of the first connecting rod, the two limiting plates can slide relative to the first connecting plate in the length direction perpendicular to the first connecting plate, and the locking through holes are arranged on the two limiting plates; the locking bolt is arranged in the locking through hole; and the locking nut is threadedly connected with the locking bolt. The slewing bearing assembly tool can avoid the radial roller from falling off from the radial retainer.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application belongs to the technical field of shield machine assembly, and particularly relates to a slewing bearing assembly tool and an assembly method. BACKGROUND

[0002] A shield machine is a special mechanical device for tunnel excavation, and is widely used in various tunnel constructions such as mountains, municipal and seabed. The slewing bearing is a key component in the shield machine, which provides rotary support for the cutter head of the shield machine, and bears the load and overturning moment. The slewing bearing in the shield machine is usually a three-row roller combined rotary disc bearing. The three-row roller combined rotary disc bearing comprises an inner ring and a first outer ring, and a radial retainer and a radial roller are arranged between the first outer ring and the inner ring.

[0003] In the related art, when the three-row roller combined rotary disc bearing is assembled, the radial roller is usually installed in the pocket hole of the radial retainer first, and then the radial retainer and the radial roller are hoisted to be assembled between the first outer ring and the inner ring.

[0004] However, in the process of hoisting the radial retainer and the radial roller, the radial roller is easy to fall off from the radial retainer, which causes damage to the working surface of the radial roller, thereby shortening the service life of the three-row roller combined rotary disc bearing. The fallen radial roller is also easy to cause damage to the inner ring or the first outer ring, for example, causing damage to the main push rolling surface in the inner ring, thereby causing the three-row roller combined rotary disc bearing to fail to work. SUMMARY

[0005] Therefore, the embodiment of the present application provides a slewing bearing assembly tool and an assembly method to solve the technical problem that the radial roller is easy to fall off from the radial retainer in the process of hoisting the radial retainer and the radial roller in the related art.

[0006] The first aspect of the embodiment of the present application provides a slewing bearing assembly tool, which comprises a first connecting plate, a first connecting rod, a locking bolt, a locking nut and two limiting plates. The first end of the first connecting rod is connected to the first connecting plate, and the second end of the first connecting rod is detachably connected to the radial retainer. The two limiting plates are oppositely arranged on the two sides of the first connecting rod, and are used for abutting against the rolling surface of the radial roller. The two limiting plates are both slidable relative to the first connecting plate in the length direction perpendicular to the first connecting plate. The locking through holes are arranged on the two limiting plates, and the locking through holes of the two limiting plates are opposite. The locking bolt is arranged in the opposite locking through holes. The locking nut is sleeved on the locking bolt and is threadedly connected with the locking bolt.

[0007] In the assembly process of the slewing bearing, when the radial rolling assembly needs to be assembled, the second end of the first connecting rod is connected with the radial retainer, so that the first connecting rod and the radial retainer form a rigid connection. The radial retainer is located between the two limiting plates. A plurality of radial rollers are respectively placed in a plurality of pockets of the radial retainer, and the inner wall of the pocket axially limits the radial roller. Then, the position of the limiting plate is adjusted, so that the two limiting plates abut against the rolling surface of the radial roller, and the two limiting plates radially limit the radial roller. When hoisting the radial rolling assembly, the hoisting device such as a crab is connected with the first connecting plate, and the hoisting device hoists the radial rolling assembly through the slewing bearing assembly tool of the embodiment. During hoisting, the radial roller is axially limited and radially limited, which improves the stability of the radial roller during hoisting of the radial rolling assembly, avoids the radial roller from falling out of the radial retainer, thereby preventing the working surface of the radial roller and the inner ring and the first outer ring from being damaged, ensuring the assembly quality of the slewing bearing, and further ensuring the function and service life of the slewing bearing. At the same time, the risk of injury to workers caused by the falling of the radial roller is also reduced or eliminated.

[0008] Moreover, compared with the related art of assembling the slewing bearing using a crab, a crowbar and other tools, the slewing bearing assembly tool of the embodiment is used to assemble the slewing bearing, without the need for multiple people to support the radial roller, and the radial roller does not need to be reinstalled after falling, thereby improving the assembly efficiency of the slewing bearing.

[0009] In addition, when the slewing bearing assembly tool of the embodiment is used to assemble the slewing bearing, the hoisting device is connected with the first connecting plate, avoiding the hoisting device from being directly connected with the radial retainer, which can avoid the hoisting device from directly applying a pulling force to the radial retainer, thereby preventing the radial retainer from being deformed, especially when the size of the radial retainer is large, thereby ensuring the assembly quality of the slewing bearing.

[0010] In some possible implementations that can include the above embodiments, the first connecting plate is provided with a first connecting hole; the first connecting rod is a first screw rod, a first end of the first screw rod is arranged in the first connecting hole and can slide along the axial direction of the first screw rod relative to the first connecting plate, and a second end of the first screw rod is detachably connected in a first hoisting hole of the radial retainer; the first screw rod is sleeved with two first positioning nuts, the two first positioning nuts are respectively located on both sides of the first connecting plate and abut against the first connecting plate.

[0011] In some possible implementations that can include the above embodiments, the first connecting hole is a first strip-shaped hole, and the extension direction of the first strip-shaped hole is parallel to the length direction of the first connecting plate.

[0012] In some possible implementation manners that can include the above-mentioned embodiments, the number of the first strip-shaped holes is at least two, and the at least two first strip-shaped holes are arranged at intervals along the length direction of the first connecting plate; the number of the first screw rods is at least two, and the at least two first screw rods are arranged in one-to-one correspondence with the at least two first strip-shaped holes, and each first screw rod is arranged in a corresponding first strip-shaped hole.

[0013] In some possible implementation manners that can include the above-mentioned embodiments, the first connecting plate is provided with a sliding channel, and the extension direction of the sliding channel is perpendicular to the length direction of the first connecting plate; the slewing bearing assembly tool further includes two adjusting rods, the first ends of the two adjusting rods are slidably arranged in the sliding channel, the second end of one adjusting rod is connected with one limiting plate, and the second end of the other adjusting rod is connected with the other limiting plate.

[0014] In some possible implementation manners that can include the above-mentioned embodiments, the adjusting rod is a second screw rod, and the second screw rod is arranged in the sliding channel; the second screw rod is sleeved with two second positioning nuts, and the two second positioning nuts are located on the two sides of the first connecting plate and abut against the first connecting plate.

[0015] In some possible implementation manners that can include the above-mentioned embodiments, the number of the sliding channels is two, and the two sliding channels are arranged at the two ends of the first connecting plate respectively, and two adjusting rods are arranged in each sliding channel.

[0016] In some possible implementation manners that can include the above-mentioned embodiments, the slewing bearing assembly tool further includes a second connecting plate and a second connecting rod, the second connecting plate is located on the side of the first connecting plate away from the limiting plate; the first end of the second connecting rod is connected with the second connecting plate, and the second end of the second connecting rod is connected with the first connecting plate.

[0017] The second aspect of the embodiments of the present application provides a slewing bearing assembly method, which uses the slewing bearing assembly tool according to any one of the above-mentioned embodiments, and the assembly method includes the following steps:

[0018] A first outer ring and an inner ring are provided, and the first outer ring and the inner ring have a vertical and open-top radial roller way therebetween;

[0019] The first end of the connecting rod of the slewing bearing assembly tool is connected with the radial cage, the radial rollers are arranged in the pockets of the radial cage to axially limit the radial rollers; the two limiting plates of the slewing bearing assembly tool are adjusted so that the two limiting plates abut against the rolling surfaces of the radial rollers, and the lock nuts and lock bolts are tightened to radially limit the radial rollers;

[0020] hoisting the first connecting plate of the slewing bearing tooling, and adjusting the posture of the first connecting plate so that the radial retainer and the radial roller are located directly above the radial raceway, and installing the radial retainer and the radial roller in the radial raceway;

[0021] installing the main thrust rolling assembly and the second outer ring.

[0022] The slewing bearing assembly method of the embodiments of the present application can improve the stability of the radial roller when hoisting the radial rolling assembly, avoid the radial roller from falling off the radial retainer, thereby preventing damage to the working surface of the radial roller, ensuring the assembly quality of the slewing bearing, and further ensuring the service life of the slewing bearing. At the same time, the risk of injury to workers caused by the falling of the radial roller is reduced or eliminated.

[0023] Moreover, compared with the assembly of the slewing bearing using the crown block, crowbar and other tools in the related art, the assembly of the slewing bearing using the slewing bearing assembly tooling of the embodiments of the present application does not require multiple people to support the radial roller, and avoids the need to reinstall the radial roller after it falls off, thereby improving the assembly efficiency of the slewing bearing.

[0024] In addition, when assembling the slewing bearing using the slewing bearing assembly tooling of the embodiments of the present application, the hoisting device is connected with the first connecting plate, avoiding the direct connection of the hoisting device with the radial retainer, which can avoid the direct application of pulling force by the hoisting device to the radial retainer, thereby preventing the radial retainer from deforming, especially when the size of the radial retainer is large, thereby ensuring the assembly quality of the slewing bearing.

[0025] In some possible implementations that can include the above embodiments, installing the radial retainer and the radial roller in the radial raceway includes:

[0026] lowering the first connecting plate, and placing the part of the radial retainer and the radial roller exposed from the limiting plates into the radial raceway;

[0027] loosening the locking nuts and the locking bolts, and releasing the radial limitation of the two limiting plates on the radial roller;

[0028] continuing to lower the first connecting plate, one limiting plate abuts against the end face of the first outer ring, and the other limiting plate abuts against the end face of the inner ring, and the two limiting plates slide towards the first connecting plate, and the radial retainer and the radial roller are gradually placed in the radial raceway. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the accompanying drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0030] Figure 1 A cross-sectional view of a slewing bearing in the related art;

[0031] Figure 2 A cross-sectional view of a first outer ring in the present application; Figure 1

[0032] A cross-sectional view of an inner ring in the present application; Figure 3 Figure 1 A cross-sectional view of a second outer ring in the present application;

[0033] Figure 4 Figure 1 A cross-sectional view of a radial retainer in the present application;

[0034] Figure 5 A cross-sectional view of a radial retainer in the present application; Figure 1

[0035] A cross-sectional view of a radial retainer in the present application; Figure 6

[0036] A cross-sectional view of a radial retainer in the present application; Figure 7 Figure 6 A cross-sectional view of a radial retainer in the present application;

[0037] Figure 8 Figure 6 A cross-sectional view of a radial retainer in the present application;

[0038] Figure 9 A cross-sectional view of a radial retainer in the present application; Figure 6

[0039] A cross-sectional view of a radial retainer in the present application; Figure 10 A flowchart of a slewing bearing assembly method in the present application.

[0040] Explanation of reference signs:

[0041] 10 - slewing bearing;

[0042] 110 - first outer ring; 111 - first floating ring assembly surface;

[0043] 112 - second floating ring assembly surface; 113 - first auxiliary pushing blocking surface;

[0044] 114 - first radial blocking surface; 115 - first radial rolling surface;​​​​

[0045] 116 - mounting groove; 117 - elastic assembly;

[0046] 118 - connecting protrusion; 120 - floating ring;

[0047] 121 - first auxiliary thrust rolling surface; 130 - inner ring;

[0048] 131 - second auxiliary thrust rolling surface; 132 - second auxiliary thrust rolling surface;

[0049] 133 - second radial rolling surface; 134 - first main thrust rolling surface;

[0050] 135 - first main thrust blocking surface; 140 - second outer ring;

[0051] 141 - second radial blocking surface; 142 - second main thrust blocking surface;

[0052] 143 - second main thrust rolling surface; 144 - connecting groove;

[0053] 150 - auxiliary thrust rolling assembly; 151 - auxiliary thrust retainer;

[0054] 152 - auxiliary thrust roller; 160 - radial rolling assembly;

[0055] 161 - radial retainer; 162 - radial roller;

[0056] 163 - pocket; 164 - first lifting hole;

[0057] 170 - main thrust rolling assembly; 171 - main thrust retainer;

[0058] 172 - main thrust roller;

[0059] 20 - rotary support assembly tool;

[0060] 210 - first connecting plate; 211 - first connecting hole;

[0061] 212 - sliding through slot; 213 - third connecting hole;

[0062] 214 - second lifting hole; 215 - first groove;

[0063] 220 - first connecting rod; 221 - first positioning nut;

[0064] 222 - third positioning nut; 230 - limiting plate;

[0065] 231 - locking through hole; 240 - locking bolt;

[0066] 250 - locking nut; 260 - adjusting rod;

[0067] 261 - second positioning nut; 270 - second connecting plate;

[0068] 271 - second connecting hole; 272 - fourth connecting hole;

[0069] 273 - second groove; 280 - second connecting rod;

[0070] 281 - fourth positioning nut; 282 - fifth positioning nut. DETAILED DESCRIPTION

[0071] In the related art, the slewing bearing of the shield tunneling machine is generally a three-row roller combined slewing bearing. Referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , the three-row roller combined slewing bearing includes a first outer ring 110, an inner ring 130, and a second outer ring 140. The first outer ring 110 and the second outer ring 140 are arranged outside the inner ring 130, and the first outer ring 110 and the second outer ring 140 are connected. The auxiliary thrust rolling assembly 150 and the radial rolling assembly 160 are arranged between the first outer ring 110 and the inner ring 130, and the main thrust rolling assembly 170 is arranged between the inner ring 130 and the second outer ring 140. The inner ring 130 rotates relative to the first outer ring 110 and the second outer ring 140 through the auxiliary thrust rolling assembly 150, the radial rolling assembly 160, and the main thrust rolling assembly 170.

[0072] Specifically, referring to Figure 1 and Figure 2 , the lower end surface of the first outer ring 110 is a plane, and the upper end surface of the first outer ring 110 is provided with a connecting protrusion 118 for connecting with the second outer ring 140. The inner annular surface of the first outer ring 110 can be a first stepped surface. The first stepped surface can include a first floating ring assembly surface 111, a second floating ring assembly surface 112, a first auxiliary thrust blocking surface 113, a first radial blocking surface 114, and a first radial rolling surface 115 connected in sequence. The first floating ring assembly surface 111 is perpendicular to the axial direction of the first outer ring 110, and the first floating ring assembly surface 111 is provided with a mounting groove 116 containing an elastic assembly 117. Exemplarily, the elastic assembly 117 can include at least one disc spring. The second floating ring assembly surface 112 is perpendicular to the first floating ring assembly surface 111. A floating ring 120 can be mounted on the first floating ring assembly surface 111 and the second floating ring assembly surface 112, and abuts against the elastic assembly 117. The upper end surface of the floating ring 120 is a first auxiliary thrust rolling surface 121. The first auxiliary thrust blocking surface 113 is perpendicular to the second floating ring assembly surface 112. The first radial blocking surface 114 is perpendicular to the first auxiliary thrust blocking surface 113. The first radial rolling surface 115 is perpendicular to the first radial blocking surface 114.

[0073] Referring to Figure 1 and Figure 3 The inner ring 130 is located inside the first outer ring 110, and the axis of the inner ring 130 coincides with the axis of the first outer ring 110. The outer ring surface of the inner ring 130 can be a second stepped surface. The second stepped surface can include a second auxiliary thrust blocking surface 131, a second auxiliary thrust rolling surface 132, a second radial rolling surface 133, a first main thrust rolling surface 134, and a first main thrust blocking surface 135 connected in sequence. The second auxiliary thrust blocking surface 131 is parallel to the axis of the inner ring 130, and is opposite to the first auxiliary thrust blocking surface 113 of the first outer ring 110. The second auxiliary thrust rolling surface 132 is perpendicular to the second auxiliary thrust blocking surface 131, and is opposite to the first auxiliary thrust rolling surface 121 of the floating ring 120 to form an auxiliary thrust raceway. The first auxiliary thrust blocking surface 113, the first auxiliary thrust rolling surface 121, the second auxiliary thrust blocking surface 131, and the second auxiliary thrust rolling surface 132 surround to form an auxiliary thrust containing space for containing the auxiliary thrust rolling assembly 150. The second radial rolling surface 133 is opposite to the first radial rolling surface 115 of the first outer ring 110 to form a radial raceway. The first main thrust rolling surface 134 is perpendicular to the second radial rolling surface 133. The first main thrust blocking surface 135 is perpendicular to the first main thrust rolling surface 134.

[0074] Referring to Figure 1 and Figure 4 The second outer ring 140 is located outside the inner ring 130, and is connected with the first outer ring 110. The lower end surface of the second outer ring 140 is provided with a connecting groove 144, which can be sleeved on the connecting protrusion 118 of the first outer ring 110, and the connecting groove 144 and the connecting protrusion 118 can position the second outer ring 140 and the first outer ring 110. The inner ring surface of the second outer ring 140 can be a third stepped surface. The third stepped surface can include a second radial blocking surface 141, a second main thrust blocking surface 142, and a second main thrust rolling surface 143 connected in sequence. The second radial blocking surface 141 is perpendicular to the axis of the second outer ring 140, and the second radial blocking surface 141 is opposite to the first radial blocking surface 114 of the first outer ring 110. The first radial blocking surface 114, the first radial rolling surface 115, the second radial blocking surface 141, and the second radial rolling surface 133 surround to form a radial containing space for containing the radial rolling assembly 160. The second main thrust blocking surface 142 is perpendicular to the second radial blocking surface 141, and the second main thrust blocking surface 142 is opposite to the first main thrust blocking surface 135. The second main thrust rolling surface 143 is opposite to the first main thrust rolling surface 134 of the inner ring 130 to form a main thrust raceway. The first main thrust blocking surface 135, the first main thrust rolling surface 134, the second main thrust blocking surface 142, and the second main thrust rolling surface 143 surround to form a main thrust containing space for containing the main thrust rolling assembly 170.

[0075] The auxiliary pushing rolling assembly 150 comprises an auxiliary pushing retainer 151 and an auxiliary pushing roller 152. The two ends of the auxiliary pushing retainer 151 abut against the first auxiliary pushing barrier surface 113 and the second auxiliary pushing barrier surface 131 respectively. The auxiliary pushing roller 152 is installed in the pocket hole of the auxiliary pushing retainer 151, and the rolling surface of the auxiliary pushing roller 152 abuts against the auxiliary pushing raceway, i.e. the auxiliary pushing roller 152 can roll on the first auxiliary pushing rolling surface 121 and the second auxiliary pushing rolling surface 132.

[0076] The radial rolling assembly 160 comprises a radial retainer 161 and a radial roller 162. The two ends of the radial retainer 161 are spaced apart from the first radial barrier surface 114 and the second radial barrier surface 141 respectively. Referring to Figure 5 , the end surface of the radial retainer 161 is provided with a first hoisting hole 164 for connecting a hoisting tool such as a crown block. The radial roller 162 is installed in the pocket hole 163 of the radial retainer 161. The rolling surface of the radial roller 162 abuts against the radial raceway, i.e. the radial roller 162 can roll on the first radial rolling surface 115 and the second radial rolling surface 133.

[0077] The main pushing rolling assembly 170 comprises a main pushing retainer 171 and a main pushing roller 172. The two ends of the main pushing retainer 171 abut against the first main pushing barrier surface 135 and the second main pushing barrier surface 142 respectively. The main pushing roller 172 is installed in the pocket hole of the main pushing retainer 171, and the rolling surface of the main pushing roller 172 abuts against the main pushing raceway, i.e. the main pushing roller 172 can roll on the first main pushing rolling surface 134 and the second main pushing rolling surface 143.

[0078] When assembling the three-row roller combined turntable bearing, the first outer ring 110 is usually placed horizontally first, for example Figure 2 The elastic assembly 117 is installed in the mounting groove 116, and then the floating ring 120 is installed on the first floating ring assembly surface 111 and the second floating ring assembly surface 112 of the first outer ring 110. Then the auxiliary pushing rolling assembly 150 is installed on the first auxiliary pushing rolling surface 121 of the floating ring 120 and the first auxiliary pushing barrier surface 113 of the first outer ring 110. Then the inner ring 130 is installed, so that the second auxiliary pushing rolling surface 132 and the second auxiliary pushing barrier surface 131 of the inner ring 130 abut against the auxiliary pushing rolling assembly 150, forming an auxiliary pushing containing space. At this time, the second radial rolling surface 133 of the inner ring 130 is opposite to the first radial rolling surface 115 of the first outer ring 110, forming a radial raceway which is open at the top. Then, the radial rolling assembly 160 is installed in the radial raceway.

[0079] When installing the radial rolling assembly 160, the radial rollers 162 are usually installed in the pockets 163 of the radial retainer 161 first, and then the radial retainer 161 and the radial rollers 162 are hoisted to above the radial raceway by a crane or other tools, and then the radial retainer 161 and the radial rollers 162 are dropped into the radial raceway. However, in the process of hoisting the radial retainer 161 and the radial rollers 162, the radial rollers 162 are prone to falling out of the radial retainer 161, which causes damage to the working surface of the radial rollers 162, thereby shortening the service life of the three-row roller combined turntable bearing. Or the radial rollers 162 that fall out can cause damage to the inner ring 130 or the first outer ring 110, for example, damage to the first main thrust rolling surface 134 in the inner ring 130. As the most important stress rolling surface in the three-row roller combined turntable bearing, the first main thrust rolling surface 134 will directly cause the three-row roller combined turntable bearing to fail to work if it has defects such as damage.

[0080] Therefore, the embodiment of the present application provides a slewing bearing assembly tool, which is provided with two limiting plates that can slide relative to or away from each other. After the radial rollers 162 are installed in the pockets 163 of the radial retainer 161, the side walls of the pockets 163 of the radial retainer 161 can axially limit the radial rollers 162, and the two limiting plates abut against the rolling surfaces of the radial rollers 162 to radially limit the radial rollers 162, thereby improving the stability of the radial rollers 162, avoiding the radial rollers 162 from falling out of the radial retainer 161, preventing the working surface of the radial rollers 162 and the inner ring and the first outer ring from being damaged, and ensuring the function and service life of the slewing bearing.

[0081] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, not all embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of protection of the present application.

[0082] Reference Figure 6 , Figure 7 , Figure 8 and Figure 9In the first aspect, the application provides a swing bearing assembly tool 20, which comprises a first connecting plate 210, a first connecting rod 220, a locking bolt 240, a locking nut 250, and two limiting plates 230. The first end of the first connecting rod 220 is connected to the first connecting plate 210, and the second end of the first connecting rod 220 is detachably connected to a radial retainer 161. The two limiting plates 230 are arranged opposite to each other on the two sides of the first connecting rod 220 and are used to abut the rolling surface of a radial roller 162. The two limiting plates 230 can slide relative to the first connecting plate 210 in the direction perpendicular to the length of the first connecting plate 210. The two limiting plates 230 are provided with locking through holes 231, and the locking through holes 231 of the two limiting plates 230 are opposite to each other. The locking bolt 240 is arranged in the opposite two locking through holes 231. The locking nut 250 is sleeved on the locking bolt 240 and is threadedly connected to the locking bolt 240.

[0083] In the assembly process of the swing bearing, when the radial rolling assembly 160 needs to be assembled, the second end of the first connecting rod 220 is connected to the radial retainer 161, so that the first connecting rod 220 and the radial retainer 161 are rigidly connected. The radial retainer 161 is located between the two limiting plates 230. A plurality of radial rollers 162 are placed in a plurality of pockets 163 of the radial retainer 161, and the inner wall of the pocket 163 axially limits the radial roller 162. Then, the position of the limiting plate 230 is adjusted, so that the two limiting plates 230 abut the rolling surface of the radial roller 162, and the two limiting plates 230 radially limit the radial roller 162. When hoisting the radial rolling assembly 160, the crab hoist is connected to the first connecting plate 210, and the hoisting device hoists the radial rolling assembly 160 through the swing bearing assembly tool. During hoisting, the radial roller 162 is axially and radially limited, which improves the stability of the radial roller 162 during hoisting of the radial rolling assembly 160, avoids the radial roller 162 from falling out of the radial retainer 161, prevents the working surface of the radial roller 162 and the inner ring 130 and the first outer ring 110 from being damaged, ensures the assembly quality of the swing bearing, and further ensures the function and service life of the swing bearing. At the same time, the risk of injury to workers caused by the falling of the radial roller 162 is reduced or eliminated.

[0084] Furthermore, compared with the related art of using a crab hoist, a crowbar and other tools to assemble the swing bearing, the swing bearing assembly tool of the application does not require multiple people to support the radial roller 162 when assembling the swing bearing, and avoids the need to reinstall the radial roller 162 after the radial roller 162 falls off, thereby improving the assembly efficiency of the swing bearing.

[0085] Furthermore, when assembling the slewing bearing using the slewing bearing assembly fixture 20 of this application embodiment, the lifting device is connected to the first connecting plate 210, avoiding direct connection between the lifting device and the radial cage 161. This prevents the lifting device from directly applying tension to the radial cage 161, thereby preventing deformation of the radial cage 161. This is especially important when the radial cage 161 is large, thus ensuring the assembly quality of the slewing bearing.

[0086] Furthermore, the slewing bearing assembly fixture 20 of this application embodiment has a simple structure, is easy to process, and is economical.

[0087] refer to Figure 6 , Figure 7 and Figure 8 The first connecting plate 210 can be a long strip-shaped plate structure. For example, the first connecting plate 210 has a length direction. The length direction of the first connecting plate 210 can be along... Figure 6 The horizontal direction is shown in the figure. The first connecting plate 210 may also be provided with a second lifting hole 214 for connecting with a lifting device such as an overhead crane. The first connecting plate 210 is provided with a first connecting hole 211. The first connecting hole 211 is used to connect the first connecting rod 220. For example, the first connecting hole 211 may be a first strip hole, and the extension direction of the first strip hole is parallel to the length direction of the first connecting plate 210. The first connecting rod 220 may slide in the first strip hole, thereby adjusting the position of the first connecting rod 220, so that the first connecting rod 220 can be connected to the first lifting hole 164 on different radial cages 161, so that the slewing bearing assembly tooling can be used to assemble different radial cages 161, thereby improving the applicability of the slewing bearing assembly tooling.

[0088] The number of first strip-shaped holes can be at least two, and these at least two first strip-shaped holes are spaced apart along the extending direction of the first connecting plate 210. The number of first connecting rods 220 is at least two, and each of the at least two first connecting rods 220 corresponds one-to-one with one of the at least two first strip-shaped holes, with each first connecting rod 220 passing through its corresponding first strip-shaped hole. This arrangement allows the first connecting plate 210 to be connected to the radial retainer 161 via multiple first connecting rods 220, improving the connection strength between the first connecting plate 210 and the radial retainer 161. Furthermore, it improves the uniformity of the connection force between the first connecting plate 210 and the radial retainer 161, preventing deformation of the radial retainer 161 due to uneven force distribution during lifting.

[0089] The first connecting plate 210 can further be provided with sliding through-slots 212, the extending direction of the sliding through-slots 212 being perpendicular to the length direction of the first connecting plate 210. The sliding through-slots 212 are used for sliding connection with the limiting plates 230. Exemplarily, the number of the sliding through-slots 212 can be two, and the two sliding through-slots 212 are respectively arranged at the two ends of the first connecting plate 210. Both of the two sliding through-slots 212 are used for sliding connection with the limiting plates 230.

[0090] The two sides of the first connecting plate 210 can be respectively provided with first grooves 215, which can reduce the weight of the first connecting plate 210, thereby reducing the weight of the slewing bearing assembly tool 20 and improving the convenience during hoisting.

[0091] The first connecting plate 210 is connected with the first end of the first connecting rod 220. Exemplarily, the first connecting rod 220 can be a first screw rod, the first end of the first screw rod being arranged in the first connecting hole 211 and being slidable relative to the first connecting plate 210 along the axial direction of the first screw rod, and the second end of the first screw rod being detachably connected in the first hoisting hole 164 of the radial retainer 161. The first screw rod is sleeved with two first positioning nuts 221, the two first positioning nuts 221 being respectively located at the two sides of the first connecting plate 210 and abutting against the first connecting plate 210. The height of the first screw rod can be adjusted by rotating the two first positioning nuts 221, so that the first screw rod can be connected in the first hoisting hole 164 of different radial retainers 161, and the slewing bearing assembly tool can be used for assembling different radial retainers 161, thereby improving the application range of the slewing bearing assembly tool.

[0092] The number of the first screw rods can be at least two, and the at least two first screw rods are arranged in one-to-one correspondence with the at least two first strip-shaped holes, and each first screw rod is arranged in the corresponding first strip-shaped hole.

[0093] The two sides of the first connecting rod 220 are respectively provided with one limiting plate 230. The two limiting plates 230 are slidable relative to the first connecting plate 210 along the direction perpendicular to the first connecting plate 210. Exemplarily, the slewing bearing assembly tool can further include two adjusting rods 260, the first ends of the two adjusting rods 260 being slidably arranged in the sliding through-slots 212, the second end of one adjusting rod 260 being connected with one limiting plate 230, and the second end of the other adjusting rod 260 being connected with the other limiting plate 230. The two limiting plates 230 are slidably connected with the first connecting plate 210 through the adjusting rods 260. Exemplarily, when the number of the sliding through-slots 212 is two, two adjusting rods 260 can be respectively arranged in each sliding through-slot 212.

[0094] Exemplarily, the adjusting rod 260 can be a second screw rod arranged in the sliding channel 212. The second screw rod is sleeved with two second positioning nuts 261, which are respectively located on two sides of the first connecting plate 210 and abut against the first connecting plate 210. The second positioning nuts 261 axially position the second screw rod to prevent the second screw rod from sliding out of the sliding channel 212. In addition, the height of the second screw rod can be adjusted by rotating the second positioning nuts 261, so as to adjust the height of the limiting plate 230 and the contact length between the limiting plate 230 and the radial roller 162. Exemplarily, along the axial direction of the radial roller 162, the contact length between the limiting plate 230 and the radial roller 162 can be greater than or equal to one fourth of the axial length of the radial roller 162. In this way, the limiting plate 230 and the radial roller 162 have sufficient contact area, so that the radial roller 162 cannot be tilted and fall off from the radial retainer 161.

[0095] The limiting plate 230 is provided with locking through holes 231 for the locking bolts 240 to pass through. Exemplarily, the number of the locking through holes 231 can be multiple, and the multiple locking through holes 231 are arranged at intervals along the extension direction of the limiting plate 230. The locking bolts 240 and the locking nuts 250 are also multiple. Each locking through hole 231 corresponds to one locking bolt 240 passing through, and each locking bolt 240 is connected with one locking nut 250. In this way, the abutting force between the limiting plate 230 and the radial roller 162 can be improved, and the stability of the radial roller 162 can be further improved. Exemplarily, the locking through holes 231 can be arranged at the upper position of the limiting plate 230, so as to avoid the interference between the locking bolts 240 passing through the locking through holes 231 and the radial retainer 161 and the radial roller 162.

[0096] Exemplarily, referring to Figure 6 , Figure 7 and Figure 9 , the slewing bearing tool can further include a second connecting plate 270 and a second connecting rod 280. The second connecting plate 270 is located on the side of the first connecting plate 210 away from the limiting plate 230. The first end of the second connecting rod 280 is connected with the second connecting plate 270, and the second end of the second connecting rod 280 is connected with the first connecting plate 210. The second connecting plate 270 can be used for carrying, and during the assembly of the slewing bearing, the second connecting plate 270 can be manually controlled to adjust the radial rolling assembly 160.

[0097] Exemplarily, the second connecting plate 270 can be provided with a second connecting hole 271 for connecting the first connecting rod 220. Exemplarily, the second connecting hole 271 can be a second strip-shaped hole, and the extending direction of the second strip-shaped hole is parallel to the length direction of the second connecting plate 270. The first connecting rod 220 can slide in the second strip-shaped hole, so as to adjust the position of the first connecting rod 220, and then the first connecting rod 220 can be connected with the first hoisting hole 164 on different radial retainers 161, so that the slewing bearing assembly tool can be used to assemble different radial retainers 161, and the application range of the slewing bearing assembly tool is improved.

[0098] The number of the second strip-shaped holes can be at least two, and the at least two second strip-shaped holes are arranged at intervals along the extending direction of the first connecting plate 210. The number of the first connecting rods 220 is at least two, and the at least two first connecting rods 220 are arranged one by one with the at least two second strip-shaped holes, and each first connecting rod 220 is arranged in the corresponding second strip-shaped hole. In this way, the second connecting plate 270 can be connected with the radial retainer 161 through the plurality of first connecting rods 220, and the connecting strength between the second connecting plate 270 and the radial retainer 161 is improved. In addition, the uniformity of the connecting force between the second connecting plate 270 and the radial retainer 161 is also improved, so as to avoid deformation of the radial retainer 161 due to uneven force during carrying.

[0099] When the first connecting rod 220 is a first screw rod, two third positioning nuts 222 can be further sleeved on the first screw rod, and the two third positioning nuts 222 are respectively located on the two sides of the second connecting plate 270 and abut against the second connecting plate 270. The two third positioning nuts 222 can position the first screw rod.

[0100] The second connecting plate 270 can be further provided with a second recess 273, and the second connecting plate 270 can be conveniently carried and moved through the second recess 273.

[0101] The first end of the second connecting rod 280 is connected with the second connecting plate 270, and the second end of the second connecting rod 280 is connected with the first connecting plate 210. Exemplarily, the first connecting plate 210 can also be provided with a third connecting hole 213. The second connecting plate 270 can also be provided with a fourth connecting hole 272. The second connecting rod 280 can be a third screw rod, the first end of the third screw rod is arranged in the fourth connecting hole 272, and the first end of the third screw rod is arranged in the third connecting hole 213. Two fourth positioning nuts 281 can be sleeved on the third screw rod, the two fourth positioning nuts 281 are respectively located on the two sides of the first connecting plate 210 and abut against the first connecting plate 210. Two fifth positioning nuts 282 can also be sleeved on the third screw rod, the two fifth positioning nuts 282 are respectively located on the two sides of the second connecting plate 270 and abut against the second connecting plate 270. The fourth positioning nut 281 and the fifth positioning nut 282 are used for positioning the third screw rod.

[0102] Exemplarily, each component in the slewing bearing assembly tooling of the embodiment of the application can be made of a high polymer material, such as polytetrafluoroethylene or polyether ether ketone; or a steel, brass, nylon or wood material.

[0103] Reference Figure 10 The second aspect of the embodiment of the application provides a slewing bearing assembly method, using the above-mentioned slewing bearing assembly tooling, and the assembly method comprises the following steps:

[0104] S1, providing an assembled first outer ring and an inner ring, the first outer ring and the inner ring have a vertical and top-open radial raceway.

[0105] Exemplarily, first, a horizontally placed first outer ring 110 is provided, and the first floating ring assembly surface 111 is placed upward. The first outer ring 110 should be placed horizontally and stably to provide a horizontal base for the installation of subsequent other components.

[0106] The elastic assembly 117 is installed in the installation groove 116, and then the floating ring 120 is installed on the first floating ring assembly surface 111 and the second floating ring assembly surface 112 of the first outer ring 110. Exemplarily, the floating ring 120 should be tightly attached to the second floating ring assembly surface 112, and the axis of the floating ring 120 should coincide with the axis of the first outer ring 110, so as to ensure that the first auxiliary push rolling surface 121 of the floating ring 120 is in an ideal position.

[0107] Then the auxiliary push rolling assembly 150 is installed on the first auxiliary push rolling surface 121 of the floating ring 120 and the first auxiliary push blocking surface 113 of the first outer ring 110. Illustratively, the auxiliary push retainer 151 can be lifted using the slewing bearing assembly tool of the present application, avoiding finger injuries, falling and other risks of work injuries caused by traditional manual handling. Illustratively, the position of the first connecting rod 220 of the slewing bearing assembly tool 20 is first adjusted, and the second end of the first connecting rod 220 is connected with the lifting hole on the auxiliary push retainer 151, so that the slewing bearing assembly tool 20 is rigidly connected with the auxiliary push retainer 151.

[0108] The second connecting plate 270 is lifted manually or using a lifting device such as a crown block, so that the auxiliary push retainer 151 moves with the slewing bearing assembly tool 20 to above the first auxiliary push rolling surface 121. The slewing bearing assembly tool 20 is removed, and the auxiliary push retainer 151 is placed on the first auxiliary push rolling surface 121. Illustratively, one side of the auxiliary push retainer 151 is tightly attached to the first auxiliary push blocking surface 113, so as to leave the maximum gap on the other side of the auxiliary push retainer 151, preventing interference between the auxiliary push retainer 151 and the inner ring 130 when the inner ring 130 is assembled, and avoiding damage to the inner ring 130 or the auxiliary push retainer 151 caused by the interference.

[0109] The auxiliary push roller 152 is placed on the first auxiliary push rolling surface 121 of the floating ring 120, and the auxiliary push roller 152 is correctly placed in the pocket of the auxiliary push retainer 151. The auxiliary push roller 152 should be handled carefully to ensure that the auxiliary push roller 152 and the first auxiliary push rolling surface 121 are not damaged, thereby avoiding affecting the service life of the slewing bearing. The correct placement of the auxiliary push roller 152 in the pocket of the auxiliary push retainer 151 means that the rotation direction of the auxiliary push roller 152 should coincide with the rotation direction of the inner ring 130.

[0110] Then the inner ring 130 is placed. The second auxiliary push rolling surface 132 of the inner ring 130 is in contact with the rolling surface of the auxiliary push roller 152, and the auxiliary push roller 152 is in rolling contact with the second auxiliary push rolling surface 132 and the first auxiliary push rolling surface 121. The second auxiliary push blocking surface 131 of the inner ring 130 is in contact with one side of the auxiliary push retainer 151, and the auxiliary push retainer 151 is in sliding contact with the second auxiliary push blocking surface 131, the first auxiliary push blocking surface 113, the second auxiliary push rolling surface 132 and the first auxiliary push rolling surface 121.

[0111] The second radial rolling surface 133 of the inner ring 130 is opposite to the first radial rolling surface 115 of the first outer ring 110, forming a radial raceway with an open top. Illustratively, the inner ring 130 should be placed smoothly and horizontally, and the axis of the inner ring 130 should coincide with the axis of the first outer ring 110 and the axis of the floating ring 120, to ensure the uniformity of the width of the radial raceway and avoid interference during subsequent assembly of the radial rolling assembly 160.

[0112] S2, connect the first end of the connecting rod of the slewing bearing assembly tool with the radial cage, install the radial rollers in the pockets of the radial cage to axially position the radial rollers; adjust the two limiting plates of the slewing bearing assembly tool so that the two limiting plates abut against the rolling surfaces of the radial rollers, and tighten the locking nuts and locking bolts to radially position the radial rollers.

[0113] Then, the radial rolling assembly 160 is installed in the radial raceway. Exemplarily, the first connecting rod 220 of the slewing bearing assembly tool 20 is adjusted, the second end of the first connecting rod 220 is connected with the first lifting hole 164 on the radial cage 161, so that the slewing bearing assembly tool 20 is rigidly connected with the radial cage 161. The radial rollers 162 are correctly placed in the pockets 163 of the radial cage 161, and the side walls of the pockets 163 axially position the radial rollers 162.

[0114] The two limiting plates 230 of the slewing bearing assembly tool 20 are adjusted so that the two limiting plates 230 abut against the rolling surfaces of the radial rollers 162, and the locking nuts 250 and locking bolts 240 are tightened to radially position the radial rollers 162. At this time, the slewing bearing assembly tool 20, the radial cage 161 and the radial rollers 162 are rigidly connected.

[0115] S3, hoist the first connecting plate of the slewing bearing tool, and adjust the attitude of the first connecting plate so that the radial cage and the radial rollers are located directly above the radial raceway, and the radial cage and the radial rollers are installed in the radial raceway.

[0116] Exemplarily, the first connecting plate 210 is hoisted manually or by using a hoisting device such as a crown block, so that the radial cage 161 and the radial rollers 162 move to above the radial raceway following the slewing bearing assembly tool 20. Then, the radial cage 161 and the radial rollers 162 are installed in the radial raceway.

[0117] Exemplarily, when the radial retainer 161 and the radial rollers 162 are installed in the radial raceway, the first connecting plate 210 or the second connecting plate 270 can be controlled to descend first, and the part of the radial retainer 161 and the radial rollers 162 exposed from the limiting plate 230 is placed in the radial raceway. The locking nut 250 and the locking bolt 240 are loosened, and the radial limiting of the radial rollers 162 by the two limiting plates 230 is released. The first connecting plate 210 or the second connecting plate 270 continues to be controlled to descend, at this time, one limiting plate 230 abuts against the end face of the first outer ring 110, the other limiting plate 230 abuts against the end face of the inner ring 130, and the two limiting plates 230 slide towards the direction of the first connecting plate 210, the radial retainer 161 and the radial rollers 162 are gradually placed in the radial raceway, and the second end of the first connecting rod 220 is detached from the radial retainer 161. Through the above assembly method, the radial retainer 161 and the radial rollers 162 are always in a controllable state, avoiding the damage of the radial retainer 161, the radial rollers 162, the first outer ring 110 and the inner ring 130 caused by the falling of the radial retainer 161 and the radial rollers 162 into the radial raceway, thereby ensuring the assembly quality of the slewing bearing.

[0118] S4, installing a main pushing rolling assembly and a second outer ring.

[0119] After the radial rolling assembly 160 is installed, the main pushing rolling assembly 170 is installed on the inner ring 130. Exemplarily, the slewing bearing assembly tool of the embodiment of the present application can be used to hoist the main pushing retainer 171, avoiding the finger injury, falling and other risks of work injury caused by the traditional manual handling. Exemplarily, first, the position of the first connecting rod 220 of the slewing bearing assembly tool 20 is adjusted, the second end of the first connecting rod 220 is connected with the hoisting hole of the main pushing retainer 171, so that the slewing bearing assembly tool 20 and the main pushing retainer 171 form a rigid connection.

[0120] The second connecting plate 270 is manually lifted or hoisted by using a hoisting device such as a crown block, so that the first connecting plate 210 is hoisted, and the main pushing retainer 171 follows the slewing bearing assembly tool 20 to move above the first main pushing rolling surface 134. The slewing bearing assembly tool 20 is removed, and the main pushing retainer 171 is placed on the first main pushing rolling surface 134. Exemplarily, one side of the main pushing retainer 171 is tightly attached to the first main pushing blocking surface 135, so as to leave the maximum gap on the other side of the main pushing retainer 171, preventing the interference between the main pushing retainer 171 and the second outer ring 140 during the installation of the second outer ring 140, and avoiding the damage of the second outer ring 140 or the main pushing retainer 171 caused by the interference, thereby affecting the service life of the slewing bearing.

[0121] The main thrust roller 172 is placed on the first main thrust rolling surface 134 of the inner ring 130, and the main thrust roller 172 is correctly placed in the pocket of the main thrust retainer 171. The main thrust roller 172 should be handled with care to ensure that the main thrust roller 172 and the first main thrust rolling surface 134 are not damaged, thereby avoiding affecting the service life of the slewing bearing. The main thrust roller 172 is correctly placed in the pocket of the main thrust retainer 171 means that the rotation direction of the main thrust roller 172 should coincide with the rotation direction of the inner ring 130.

[0122] Exemplarily, because the main thrust roller 172 is usually large in size and heavy in weight, when the main thrust roller 172 is placed into the pocket of the main thrust retainer 171, a rubber pad can be placed on the first main thrust rolling surface 134 at the pocket to avoid damage to the first main thrust rolling surface 134 caused by free fall of the main thrust roller 172.

[0123] Then the second outer ring 140 is placed. The second main thrust rolling surface 143 of the second outer ring 140 is in contact with the rolling surface of the main thrust roller 172, and the main thrust roller 172 is in rolling contact with the second main thrust rolling surface 143 and the first main thrust rolling surface 134. The second main thrust blocking surface 142 of the second outer ring 140 is in contact with one side of the main thrust retainer 171, and the main thrust retainer 171 is in sliding contact with the second main thrust blocking surface 142, the first main thrust blocking surface 135, the second main thrust rolling surface 143 and the first main thrust rolling surface 134.

[0124] Exemplarily, when the second outer ring 140 is placed, it should be ensured that the axis of the second outer ring 140 coincides with the axis of the first outer ring 110, so that the connecting groove 144 of the lower end surface of the second outer ring 140 can be sleeved on the connecting protrusion 118 of the upper end surface of the first outer ring 110, to avoid interference causing damage to the main thrust roller 172, the main thrust retainer 171, the first outer ring 110, the radial retainer 161 and the radial roller 162.

[0125] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A swing bearing assembly tool characterized by, The application relates to a rotary bearing assembly tool. The tool comprises a first connecting plate, a first connecting rod, two limiting plates, a locking bolt, a locking nut, a sliding slot, two adjusting rods, a second connecting plate and a second connecting rod. The first end of the first connecting rod is connected to the first connecting plate, and the second end of the first connecting rod is detachably connected to a radial holder. The two limiting plates are oppositely arranged on the two sides of the first connecting rod and are used for abutting against the rolling surface of a radial roller. The two limiting plates are slidably arranged on the first connecting plate in the direction perpendicular to the length direction of the first connecting plate. The locking through holes of the two limiting plates are opposite. The locking bolt is arranged in the opposite locking through holes. The locking nut is sleeved on the locking bolt and is threadedly connected with the locking bolt. The first connecting plate is provided with the sliding slot, and the extension direction of the sliding slot is perpendicular to the length direction of the first connecting plate.

2. The slewing ring assembly tool of claim 1, wherein, The second end of one adjusting rod is connected to one limiting plate, and the second end of the other adjusting rod is connected to the other limiting plate. In the axial direction of the radial roller, the contact length between the limiting plate and the radial roller is greater than or equal to one fourth of the axial length of the radial roller.

3. The spherical bearing assembly tool of claim 2, wherein, The first connecting plate is provided with a first connecting hole.

4. The spherical bearing assembly tool of claim 3, wherein, The first connecting rod is a first screw rod, the first end of the first screw rod is arranged in the first connecting hole and can slide along the axial direction of the first screw rod relative to the first connecting plate, and the second end of the first screw rod is detachably connected to the first lifting hole of the radial holder. The first screw rod is sleeved with two first positioning nuts, and the two first positioning nuts are arranged on the two sides of the first connecting plate and abut against the first connecting plate.

5. The spherical bearing assembly tool of claim 1, wherein, The first connecting hole is a first strip-shaped hole, and the extension direction of the first strip-shaped hole is parallel to the length direction of the first connecting plate. The number of the first strip-shaped holes is at least two, and the at least two first strip-shaped holes are arranged at intervals in the length direction of the first connecting plate.

6. The spherical bearing assembly tool of claim 1, wherein, The number of the first screw rods is at least two, and the at least two first screw rods are arranged in one-to-one correspondence with the at least two first strip-shaped holes.

7. Slew ring assembly tooling according to any one of claims 1-6, characterized in that, The adjusting rod is a second screw rod, and the second screw rod is arranged in the sliding slot. The second screw rod is sleeved with two second positioning nuts, and the two second positioning nuts are arranged on the two sides of the first connecting plate and abut against the first connecting plate.

8. A method of assembling a slewing bearing using the slewing bearing assembly tool of any one of claims 1 to 7, characterized in that The number of the sliding slots is two, and the two sliding slots are arranged at the two ends of the first connecting plate. The rotary bearing assembly tool further comprises a second connecting plate and a second connecting rod. The first end of the second connecting rod is connected to the second connecting plate, and the second end of the second connecting rod is connected to the first connecting plate. The assembly method comprises the following steps. A first outer ring and an inner ring are provided, and the first outer ring and the inner ring have a vertical and open-top radial raceway. The first end of the connecting rod of the slewing bearing assembly tool is connected with the radial retainer, the radial rollers are installed in the pockets of the radial retainer to axially limit the radial rollers; two limiting plates of the slewing bearing assembly tool are adjusted to abut against the rolling surfaces of the radial rollers, and the locking nuts and locking bolts are tightened to radially limit the radial rollers; The first connecting plate of the slewing bearing assembly tool is hoisted, the posture of the first connecting plate is adjusted, the radial retainer and the radial rollers are located directly above the radial raceway, and the radial retainer and the radial rollers are installed in the radial raceway; The main thrust rolling assembly and the second outer ring are installed.

9. The method of assembling according to claim 8, wherein, The radial retainer and the radial rollers are installed in the radial raceway, including: The first connecting plate is lowered, and the radial retainer and the radial rollers are exposed to the part of the limiting plates and are put into the radial raceway; The locking nuts and the locking bolts are loosened, and the radial limitation of the radial rollers by the two limiting plates is released; The first connecting plate is continuously lowered, one limiting plate abuts against the end surface of the first outer ring, the other limiting plate abuts against the end surface of the inner ring, the two limiting plates slide towards the first connecting plate, and the radial retainer and the radial rollers are gradually placed in the radial raceway.

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