A mill split bearing mounting device

Abstract

The utility model relates to bearing installation technical field especially relates to a kind of rolling mill split bearing installation device.The present application embodiment provides a kind of rolling mill split bearing installation device, including lifting ring, fixed link, upper pressing plate component and lower pressing plate component.Lifting ring is set to one end of fixed link, upper pressing plate component is movably threaded in fixed link, lower pressing plate component is fixedly threaded in fixed link, lower pressing plate component is set to the side of upper pressing plate component away from lifting ring, and lower pressing plate component can be telescopic in the radial direction of fixed link.In the case where lower pressing plate component contracts, bearing inner ring can pass through lower pressing plate component, to enter between upper pressing plate component and lower pressing plate component, in the case where lower pressing plate component elongates, lower pressing plate component can support rolling mill split bearing, upper pressing plate component can pass through movable pressing compact top of rolling mill split bearing, reduce the labor intensity of operator, improve assembly efficiency, also reduce the risk of spare part bruise.

Description

Technical Field

[0001] This utility model relates to the field of bearing installation technology, and in particular to a rolling mill split bearing installation device. Background Technology

[0002] In the maintenance area of ​​the acid rolling mill rolls in the grinding roll operation area, during the installation of the split bearings of the rolling mill, operators have to manually install the bearing components (such as the inner ring, rolling elements, and outer ring) one by one into the bearing housing. This results in low assembly efficiency, high labor intensity for operators, and the risk of injury from falling objects due to the weight of each component. Utility Model Content

[0003] This application provides a rolling mill split bearing installation device, which to some extent improves the technical problems of low assembly efficiency, high labor intensity of operators, and risk of injury to operators during handling of rolling mill split bearings due to the large weight of each component.

[0004] This application provides a rolling mill split bearing mounting device for installing a rolling mill split bearing into a bearing housing, the mounting device comprising:

[0005] A lifting ring and a fixing rod, wherein the lifting ring is disposed at one end of the fixing rod;

[0006] The upper pressure plate assembly is movably mounted on the fixed rod.

[0007] A lower pressure plate assembly is fixedly inserted through the fixed rod. The lower pressure plate assembly is located on the side of the upper pressure plate assembly away from the lifting ring, and the lower pressure plate assembly is capable of extending and retracting in the radial direction of the fixed rod.

[0008] When the lower pressure plate assembly is retracted, the inner ring of the mill split bearing can pass through the lower pressure plate assembly to enter between the upper pressure plate assembly and the lower pressure plate assembly. When the lower pressure plate assembly is extended, the lower pressure plate assembly can support the mill split bearing, and the upper pressure plate assembly can press the top of the mill split bearing by moving.

[0009] In some embodiments, the lower pressure plate assembly includes a mounting base and a lower pressure plate body telescopically disposed on the mounting base, the mounting base being fixedly disposed on the fixing rod, and the lower pressure plate body being used to support the mill split bearing.

[0010] In some embodiments, the mounting base includes multiple mounting portions, and the lower pressure plate body has multiple portions. The multiple lower pressure plate bodies are arranged in a one-to-one correspondence with the multiple mounting portions. The lower pressure plate bodies are telescopically mounted on the corresponding mounting portions, and the multiple mounting portions are circumferentially spaced around the central axis of the bearing inner ring.

[0011] In some embodiments, the mounting portion is provided with a sliding groove and a guide hole communicating with the sliding groove. The lower pressure plate body is slidably engaged with the sliding groove. The lower pressure plate body is detachably connected with a fastener. The fastener passes through the guide hole and can lock the lower pressure plate body.

[0012] In some embodiments, the fastener includes a locking bolt and a first washer fitted to the locking bolt, the locking bolt being threaded to the lower pressure plate body, the locking bolt passing through the guide hole, and the first washer contacting the surface of the mounting portion.

[0013] In some embodiments, the lower pressure plate body includes a sliding portion and a pressure plate portion, the fastener is detachably connected to the sliding portion, the thickness of the sliding portion is greater than the thickness of the pressure plate portion, the pressure plate portion can extend out of the mounting portion, and the pressure plate portion is used to support the mill split bearing.

[0014] In some embodiments, the outer end faces of both the sliding portion and the pressure plate portion are arc surfaces.

[0015] In some embodiments, the upper pressure plate assembly includes an upper pressure plate body and a mating portion. The mating portion is disposed on the side of the upper pressure plate body near the lower pressure plate assembly. The upper pressure plate body has extensions on both sides extending out of the mating portion. The extensions are used to press the mill split bearing. The mating portion can mate with the inner ring of the bearing.

[0016] In some embodiments, the side surface of the mating part is arc-shaped.

[0017] In some embodiments, the upper pressure plate body is provided with a through hole, the fixing rod passes through the through hole, and the upper pressure plate assembly further includes a locking nut, which is threadedly connected to the fixing rod and can lock the upper pressure plate body.

[0018] The beneficial effects of this application are as follows:

[0019] When installing the split bearing of the rolling mill, the split bearing can be assembled outside the bearing housing first. Then, the lower pressure plate assembly is retracted, allowing the inner ring of the bearing to pass through it, so that the assembled split bearing enters between the upper and lower pressure plate assemblies. The lower pressure plate assembly is then extended, supporting the bottom of the split bearing. The upper pressure plate assembly is then moved to press against the top of the split bearing, thus fixing it in place. The split bearing is then hoisted into the bearing housing as a whole using a hoisting device and lifting rings. Finally, the lower pressure plate assembly is retracted, and the bearing installation device is removed. This method eliminates the need for operators to install each component individually into the bearing housing; instead, the split bearing is assembled outside the housing and then hoisted in as a whole, reducing operator workload, increasing assembly efficiency, and lowering the risk of component damage. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model.

[0021] Figure 1 The diagram shows a first-view structural schematic of the rolling mill split bearing mounting device.

[0022] Figure 2 The diagram shows a second-view structural schematic of the rolling mill split bearing mounting device.

[0023] Figure 3 The diagram shows a structural schematic from a third-view perspective of the rolling mill split bearing mounting device.

[0024] Figure 4 It shows Figure 1 A sectional view.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10-Installation device, 100-Lifting ring, 200-Fixing rod, 300-Upper pressure plate assembly, 310-Upper pressure plate body, 311-Extension, 312-Through hole, 320-Matching part, 330-Circular level, 340-Locking nut, 350-Second washer, 400-Lower pressure plate assembly, 410-Mounting base, 411-Mounting part, 422-Sliding groove, 423-Guide hole, 420-Lower pressure plate body, 421-Sliding part, 422-Pressure plate part, 430-Fastener, 431-Locking bolt, 432-First washer, 440-Fixing nut. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] It should be noted that all directional indications in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0029] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0030] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0031] Please see Figure 1 This application provides a rolling mill split bearing mounting device 10 for installing a rolling mill split bearing into a bearing housing. The rolling mill split bearing includes an inner ring, rolling elements, and an outer ring, with the rolling elements disposed between the inner and outer rings. The rolling mill split bearing mounting device 10 includes a lifting ring 100, a fixing rod 200, an upper pressure plate assembly 300, and a lower pressure plate assembly 400. The lifting ring 100 is located at one end of the fixing rod 200. The upper pressure plate assembly 300 is movably inserted through the fixing rod 200, and the lower pressure plate assembly 400 is fixedly inserted through the fixing rod 200. The lower pressure plate assembly 400 is located on the side of the upper pressure plate assembly 300 away from the lifting ring 100, and the lower pressure plate assembly 400 is capable of extending and retracting in the radial direction of the fixing rod 200.

[0032] When the lower pressure plate assembly 400 is retracted, the inner ring of the bearing can pass through the lower pressure plate assembly 400 to enter between the upper pressure plate assembly 300 and the lower pressure plate assembly 400. When the lower pressure plate assembly 400 is extended, the lower pressure plate assembly 400 can support the mill split bearing, and the upper pressure plate assembly 300 can press the top of the mill split bearing by moving.

[0033] It should be noted that, for ease of description, the embodiments of this application are described with reference to the orientation of the rolling mill split bearing mounting device 10 in use, that is, the fixing rod 200 is set vertically, the lifting ring 100 is set at the upper end of the fixing rod 200, and the upper pressure plate assembly 300 is located above the lower pressure plate assembly 400.

[0034] The lifting ring 100 is used in conjunction with the lifting device to complete the lifting operation. The fixed rod 200 is cylindrical, and the upper pressure plate assembly 300 is movably inserted through the fixed rod 200, meaning the upper pressure plate assembly 300 can move along the fixed rod 200. The lower pressure plate assembly 400 can be disposed at the lower end of the fixed rod 200, and the lower pressure plate assembly 400 is fixedly installed on the fixed rod 200. It can be understood that the lower pressure plate assembly 400 has a fixed part and a movable part. The fixed part is fixedly installed on the fixed rod 200, and the movable part can extend and retract relative to the fixed part in the radial direction of the inner ring of the bearing.

[0035] After the lower pressure plate assembly 400 retracts in the radial direction of the fixing rod 200, the length of the lower pressure plate assembly 400 in the radial direction of the bearing inner ring is less than the inner diameter of the bearing inner ring. Therefore, when the lower pressure plate assembly 400 is retracted, the inner ring of the mill split bearing can pass through the lower pressure plate assembly 400. It should be noted that, here, "in the radial direction of the bearing inner ring" refers to the situation where the radial direction of the fixing rod 200 is consistent with the radial direction of the bearing inner ring when the mill split bearing is assembled to the mounting device 10.

[0036] Since the upper pressure plate assembly 300 is located above the lower pressure plate assembly 400, the split bearing of the rolling mill can be positioned between the upper pressure plate assembly 300 and the lower pressure plate assembly 400. The fixing rod 200 passes through the inner ring of the bearing. After the lower pressure plate assembly 400 extends radially in the direction of the fixing rod 200, its length in the radial direction of the inner ring of the bearing is greater than the inner diameter of the inner ring. Therefore, when the lower pressure plate assembly 400 is extended, it can contact the bottom of the split bearing of the rolling mill. When the entire split bearing mounting device 10 is lifted, the lower pressure plate assembly 400 can support the split bearing of the rolling mill.

[0037] The method of using the mill split bearing installation device 10 provided in this application embodiment is as follows: First, assemble the mill split bearing outside the bearing housing. Then, retract the lower pressure plate assembly 400 so that the inner ring of the bearing passes through the lower pressure plate assembly 400, allowing the assembled mill split bearing to enter between the upper pressure plate assembly 300 and the lower pressure plate assembly 400. Then, extend the lower pressure plate assembly 400 so that it supports the bottom of the mill split bearing. Then, move the upper pressure plate assembly 300 so that it presses against the top of the mill split bearing, thereby fixing the mill split bearing. Then, using the hoisting device and the lifting ring 100, hoist the mill split bearing as a whole into the bearing housing. After the mill split bearing is installed, retract the lower pressure plate assembly 400 so that it separates from the mill split bearing. Finally, remove the mill split bearing installation device 10 through the inner ring of the bearing.

[0038] Using the mill split bearing installation device 10 provided in this application embodiment, there is no need for operators to install each component into the bearing housing one by one. Instead, the mill split bearing is directly assembled outside the bearing housing and then hoisted into the bearing housing as a whole. This reduces the labor intensity of operators, improves assembly efficiency, and also reduces the risk of component damage.

[0039] Furthermore, in related technologies, when operators assemble the components of the rolling mill split bearings one by one into the bearing housing, the small gaps between the split bearings and the high assembly precision mean that even a slight tilt of the bearing components during assembly can cause jamming, resulting in risks such as scratches and damage to spare parts. However, in this embodiment, since the rolling mill split bearings are assembled directly outside the bearing housing and then hoisted as a whole into the housing, the risk of bearing components jamming inside the housing is reduced.

[0040] Please see Figure 2 In some embodiments, the lower pressure plate assembly 400 includes a mounting base 410 and a lower pressure plate body 420 telescopically disposed on the mounting base 410. The mounting base 410 is fixedly disposed on the fixing rod 200, and the lower pressure plate body 420 is used to support the mill split bearing.

[0041] When the lower pressure plate is retracted into the mounting base 410, the inner ring of the bearing can pass through the lower pressure plate assembly 400, the lower pressure plate body 420 extends out of the mounting base 410, and the lower pressure plate body 420 can contact the bottom of the rolling mill split bearing to provide support for the rolling mill split bearing.

[0042] Please see Figure 3In some embodiments, the mounting base 410 includes a plurality of mounting portions 411, and the lower pressure plate body 420 has a plurality of mounting portions 411. The plurality of lower pressure plate bodies 420 are arranged in a one-to-one correspondence with the plurality of mounting portions 411. The lower pressure plate bodies 420 are telescopically mounted on the corresponding mounting portions 411, and the plurality of mounting portions 411 are spaced apart around the central axis of the inner ring of the bearing.

[0043] The mounting portion 411 and the lower pressure plate body 420 are arranged radially along the inner ring of the bearing. Therefore, the lower pressure plate body 420 can extend and retract relative to the corresponding mounting portion 411, thus achieving radial extension and retraction along the inner ring of the bearing. The central axis of the inner ring of the bearing coincides with the fixing rod 200. Multiple mounting portions 411 are circumferentially spaced around the central axis of the inner ring of the bearing, and each mounting portion 411 corresponds to a lower pressure plate body 420, so that multiple lower pressure plate bodies 420 are also circumferentially spaced around the central axis of the inner ring of the bearing. Specifically, three mounting portions 411 can be provided, and the multiple mounting portions 411 are equally spaced circumferentially around the fixing rod 200, with an included angle of 120° between two adjacent mounting portions 411. In this way, since the bottom surface of the rolling mill split bearing is approximately circular, the supporting force of the multiple lower pressure plate bodies 420 on the rolling mill split bearing can be evenly distributed, thereby improving the supporting effect on the rolling mill split bearing.

[0044] Please see Figure 3 and Figure 4 In some embodiments, the mounting part 411 is provided with a sliding groove 422 and a guide hole 423 communicating with the sliding groove 422. The lower pressure plate body 420 is slidably engaged with the sliding groove 422. The lower pressure plate body 420 is detachably connected with a fastener 430. The fastener 430 passes through the guide hole 423 and can lock the lower pressure plate body 420.

[0045] Both the sliding groove 422 and the guide hole 423 are arranged radially along the inner ring of the bearing. The end of the mounting portion 411 away from the fixing rod 200 has an outlet communicating with the sliding groove 422. The lower pressure plate body 420 extends or retracts from the mounting portion 411 through this outlet. When it is necessary to move the lower pressure plate body 420, the fastener 430 can be removed or loosened, allowing the lower pressure plate body 420 to slide relative to the sliding groove 422. After the lower pressure plate body 420 is moved into place, the fastener 430 is then installed to lock the lower pressure plate body 420, thus fixing the lower pressure plate body 420 and restricting its movement.

[0046] Since the fasteners 430 need to be removed or loosened after the mill split bearing is installed, so that the lower pressure plate body 420 retracts into the mounting part 411, and the lower pressure plate assembly 400 separates from the mill split bearing, and finally the mill split bearing mounting device 10 is moved out through the bearing inner ring, the guide hole 423 can be set on the upper surface of the mounting part 411 so that the fasteners 430 extend out of the upper surface of the mounting part 411, thereby facilitating the operation of the fasteners 430 by the operator.

[0047] In some embodiments, the fastener 430 includes a locking bolt 431 and a first washer 432 fitted to the locking bolt 431. The locking bolt 431 is threadedly connected to the lower pressure plate body 420. The locking bolt 431 passes through a guide hole 423. The first washer 432 is in contact with the surface of the mounting portion 411.

[0048] The lower pressure plate body 420 is provided with a screw hole, and the locking bolt 431 engages with the screw hole. When the first washer 432 needs to extend out of the mounting part 411, the locking bolt 431 is loosened (but not completely disassembled) to eliminate the locking force on the lower pressure plate body 420, allowing the lower pressure plate body 420 to move relative to the sliding groove 422. At the same time, the locking bolt 431 also moves along the guide hole 423. After the lower pressure plate body 420 extends out of the mounting part 411, the locking bolt 431 is tightened again. The friction between the first washer 432 and the mounting part 411 can prevent the lower pressure plate body 420 from moving further, thereby achieving the locking of the lower pressure plate body 420. Of course, when the lower pressure plate body 420 needs to retract into the mounting part 411, the process can be deduced similarly. Specifically, since the locking bolt 431 needs to be tightened or loosened frequently, a quick-release bolt can be used for the locking bolt 431.

[0049] It is conceivable that the lower pressure plate body 420 will not extend entirely out of the mounting part 411, but only partially. As the lower pressure plate body 420 moves relative to the sliding groove 422, the locking bolt 431 also moves along the guide hole 423. When the locking bolt 431 moves to the end of the guide hole 423 away from the fixing rod 200, the lower pressure plate body 420 can be prevented from continuing to move and detaching from the mounting part 411 under the limit of the guide hole 423.

[0050] In some embodiments, the lower pressure plate body 420 includes a sliding portion 421 and a pressure plate portion 422. The fastener 430 is detachably connected to the sliding portion 421. The thickness of the sliding portion 421 is greater than the thickness of the pressure plate portion 422. The pressure plate portion 422 can extend out of the mounting portion 411 and is used to support the mill split bearing.

[0051] The thickness direction of the sliding part 421 and the pressure plate part 422 is the length direction of the fixing rod 200. Since the sliding part 421 needs to have a screw hole, the sliding part 421 needs to have a certain thickness and can be a block structure. The pressure plate part 422 is a plate structure to facilitate the support of the rolling mill split bearing. Therefore, the thickness of the sliding part 421 is greater than the thickness of the pressure plate part 422, that is, a stepped structure is formed between the sliding part 421 and the pressure plate part 422. The pressure plate part 422 can be set at the bottom of the sliding part 421 and is set on the side of the sliding part 421 away from the fixing rod 200. The lower pressure plate body 420 extends out of the mounting part 411, which is the pressure plate part 422 extending out of the mounting part 411.

[0052] As the lower pressure plate body 420 moves relative to the sliding groove 422, the locking bolt 431 also moves along the guide hole 423. When the locking bolt 431 moves to the end of the guide hole 423 away from the fixed rod 200, the pressure plate part 422 just extends completely out of the mounting part 411. Under the limit of the guide hole 423, the sliding part 421 can be prevented from extending out of the mounting part 411.

[0053] Specifically, the outer end faces of both the sliding portion 421 and the pressure plate portion 422 are arc-shaped. The outer end faces of the sliding portion 421 and the pressure plate portion 422 are the end faces of the sliding portion 421 and the pressure plate portion 422 that are furthest from the fixing rod 200. It is understandable that when the lower pressure plate body 420 retracts into the mounting portion 411, the inner ring of the bearing may touch the outer end face of the pressure plate portion 422 as it passes through the lower pressure plate assembly 400. Conversely, when the lower pressure plate body 420 extends out of the mounting portion 411, causing the pressure plate portion 422 to support the mill split bearing, the inner ring of the bearing may touch the outer end face of the sliding portion 421. Therefore, the arc-shaped outer end faces of the sliding portion 421 and the pressure plate portion 422 minimize the risk of scratching the inner ring of the bearing.

[0054] In some embodiments, the upper pressure plate assembly 300 includes an upper pressure plate body 310 and a mating portion 320. The mating portion 320 is disposed on the side of the upper pressure plate body 310 near the lower pressure plate assembly 400. The upper pressure plate body 310 has extensions 311 extending out of the mating portion 320 on both sides. The extensions 311 are used to press the mill split bearing. The mating portion 320 can mate with the inner ring of the mill split bearing.

[0055] A stepped structure is formed between the extension 311 and the mating part 320. When the two extensions 311 press against the split bearing of the rolling mill, the mating part 320 enters the inner ring of the bearing and contacts the inner ring of the bearing, thereby improving the pressing effect of the upper pressure plate assembly 300 on the split bearing of the rolling mill.

[0056] After the installation device 10 and the rolling mill split bearing are hoisted together, the rolling mill split bearing presses against the lower pressure plate assembly 400 under the action of gravity. The upper pressure plate assembly 300 then presses the rolling mill split bearing by moving. Under the combined action of the upper pressure plate assembly 300 and the lower pressure plate assembly 400, the rolling mill split bearing is stably installed on the installation device 10.

[0057] Specifically, the sides of the mating part 320 are arc-shaped. The sides of the mating part 320 are the two sides of the mating part 320 along the radial direction of the inner ring of the bearing. Since the inner ring of the bearing is arc-shaped, the arc-shaped sides of the mating part 320 can better fit with the inner ring of the bearing.

[0058] In some embodiments, the upper pressure plate assembly 300 may further include two circular level gauges 330, which are respectively disposed on two extensions 311. The upper pressure plate body 310 can be adjusted by the two circular level gauges 330 to keep the upper pressure plate body 310 horizontal. Since the upper pressure plate body 310 presses against the split bearing of the rolling mill, it can indirectly keep the split bearing of the rolling mill vertical, avoid tilting the split bearing of the rolling mill as much as possible, and make the center of the inner ring of the bearing coincide with the center of the bearing housing. This allows the split bearing of the rolling mill to fall smoothly into the bearing housing under the action of gravity, reducing the risk of jamming.

[0059] Please see Figures 2-4 In some embodiments, the upper pressure plate body 310 is provided with a through hole 312, the fixing rod 200 passes through the through hole 312, and the upper pressure plate assembly 300 also includes a locking nut 340, which is threadedly connected to the fixing rod 200 and can lock the upper pressure plate body 310.

[0060] A through hole 312 passes through the upper pressure plate body 310 and the mating part 320. The through hole 312 can be an elongated hole for easy machining. The fixing rod 200 is provided with external threads, and the locking nut 340 is connected to the external threads and abuts against the top surface of the upper pressure plate body 310 to lock the upper pressure plate body 310. When the upper pressure plate body 310 moves into position on the fixing rod 200 and presses the mill split bearing, the locking nut 340 is tightened to lock the upper pressure plate body 310, thus preventing the upper pressure plate body 310 from moving and keeping it in the state of pressing the mill split bearing. When the upper pressure plate body 310 needs to be adjusted, the locking nut 340 is loosened. A second washer 350 can be provided on the fixing rod 200. The second washer 350 is located between the locking nut 340 and the upper pressure plate body 310 to increase the contact area between the locking nut 340 and the top surface of the upper pressure plate body 310, so as to avoid excessive local pressure when the nut is tightened, which may cause wear or deformation of the upper pressure plate surface.

[0061] Of course, the mounting base 410 and the fixing rod 200 can also be connected by threads, that is, the fixing rod 200 is a screw, the lower pressure plate assembly 400 includes two fixing nuts 440, the mounting base 410 has a hole, the fixing rod 200 passes through the mounting base 410, the two fixing nuts 440 are screwed to the fixing rod 200, and the two fixing nuts 440 are respectively located on both sides of the mounting base 410 and abut against each other, thereby realizing the fixed installation of the mounting base 410 on the fixing rod 200.

[0062] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0063] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A rolling mill split bearing mounting device for installing a rolling mill split bearing into a bearing housing, wherein the rolling mill split bearing includes an inner bearing ring, characterized in that... The installation device includes: A lifting ring and a fixing rod, wherein the lifting ring is disposed at one end of the fixing rod; The upper pressure plate assembly is movably mounted on the fixed rod. A lower pressure plate assembly is fixedly inserted through the fixed rod. The lower pressure plate assembly is located on the side of the upper pressure plate assembly away from the lifting ring, and the lower pressure plate assembly is capable of extending and retracting in the radial direction of the fixed rod. When the lower pressure plate assembly is retracted, the inner ring of the bearing can pass through the lower pressure plate assembly to enter between the upper pressure plate assembly and the lower pressure plate assembly. When the lower pressure plate assembly is extended, the lower pressure plate assembly can support the mill split bearing, and the upper pressure plate assembly can press the top of the mill split bearing by moving.

2. The mill split bearing mounting device according to claim 1, characterized in that, The lower pressure plate assembly includes a mounting base and a lower pressure plate body telescopically disposed on the mounting base. The mounting base is fixedly inserted through the fixing rod, and the lower pressure plate body is used to support the mill split bearing.

3. The mill split bearing mounting device according to claim 2, characterized in that, The mounting base includes multiple mounting parts, and the lower pressure plate body has multiple mounting parts. The multiple lower pressure plate bodies are arranged in a one-to-one correspondence with the multiple mounting parts. The lower pressure plate body is telescopically mounted on the corresponding mounting part. The multiple mounting parts are circumferentially spaced around the central axis of the inner ring of the bearing.

4. The mill split bearing mounting device according to claim 3, characterized in that, The mounting part is provided with a sliding groove and a guide hole communicating with the sliding groove. The lower pressure plate body is slidably engaged with the sliding groove. The lower pressure plate body is detachably connected with a fastener. The fastener passes through the guide hole and can lock the lower pressure plate body.

5. The mill split bearing mounting device according to claim 4, characterized in that, The fastener includes a locking bolt and a first washer fitted to the locking bolt. The locking bolt is threaded to the lower pressure plate body and passes through the guide hole. The first washer is in contact with the surface of the mounting part.

6. The mill split bearing mounting device according to claim 4, characterized in that, The lower pressure plate body includes a sliding part and a pressure plate part. The fastener is detachably connected to the sliding part. The thickness of the sliding part is greater than the thickness of the pressure plate part. The pressure plate part can extend out of the mounting part. The pressure plate part is used to support the mill split bearing.

7. The mill split bearing mounting device according to claim 6, characterized in that, The outer end faces of both the sliding part and the pressure plate part are arc surfaces.

8. The mill split bearing mounting device according to any one of claims 1-7, characterized in that, The upper pressure plate assembly includes an upper pressure plate body and a mating part. The mating part is disposed on the side of the upper pressure plate body near the lower pressure plate assembly. The upper pressure plate body has extensions on both sides extending out of the mating part. The extensions are used to press the mill split bearing. The mating part can mate with the inner ring of the bearing.

9. The mill split bearing mounting device according to claim 8, characterized in that, The side of the mating part is arc-shaped.

10. The mill split bearing mounting device according to claim 8, characterized in that, The upper pressure plate body is provided with a through hole, and the fixing rod passes through the through hole. The upper pressure plate assembly also includes a locking nut, which is threadedly connected to the fixing rod and can lock the upper pressure plate body.

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