A thrust bearing removal apparatus

Abstract

The application discloses a thrust bearing removing device, relates to the technical field of dismounting tools, and provides a thrust bearing removing device which comprises a force applying sleeve plate, a connecting body, a carrier plate, a central screw rod, a force applying handle, a positioning clamp body and a connecting rod; the combination of the force applying sleeve plate, the connecting body and the carrier plate is in a frame body structure; the bottom of the connecting body is provided with a bottom protective cover for containing the removed thrust bearing; the force applying sleeve plate is sleeved on a shaft journal to apply extrusion force to the thrust bearing to be dismounted and is in surface contact with the thrust bearing in use; the positioning clamp body is clamped and fixed on a shaft or other load-bearing objects; the connecting rod is in a telescopic rod structure and connects the force applying sleeve plate and the positioning clamp body together; the existence of the positioning clamp body can limit the movement of the force applying sleeve plate, the connecting body and the carrier plate, thereby reducing the risk of sliding of the force applying sleeve plate; and the thrust bearing removing device has the technical effects that the reliability is high, the operation risk is low, the damage to the thrust bearing in the dismounting process is small, and the dismounting efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of dismounting tools, in particular to a thrust bearing dismounting device. BACKGROUND

[0002] Because the working environment of the rolling mill roller is poor, wear, cracks or roller shape changes are prone to occur, and the roller is replaced more frequently; the roller of the rolling mill is required to use a thrust bearing due to its working characteristics; the thrust bearing is generally in interference fit with the roller (journal), and the outer ring is in clearance fit or transition fit with the bearing seat; during the maintenance and maintenance of the rolling mill, especially when the roller is replaced, the thrust bearing on the roller needs to be first dismounted using a tool;

[0003] In the prior art, the tool for dismounting the thrust bearing on the roller is mostly a three-jaw puller; the three-jaw puller is composed of a center screw, a main frame with a nut seat and a puller jaw, and the end of the puller jaw away from the main frame is provided with a jaw end hook for hooking the end of the bearing; when the three-jaw puller is used, the jaw end hook will hook the part (bearing inner ring) to be dismounted.

[0004] Because the distance between the inner wall of the inner ring of the thrust bearing and the outer wall of the outer ring is larger than that of the ordinary bearing, in order to enable the jaw end hook to abut against the end of the inner ring of the thrust bearing, a puller jaw with a relatively long jaw end hook must be selected; the relatively long jaw end hook will result in a higher risk of breakage of the jaw tip (one end provided with the jaw end hook) and a relatively low strength, thereby increasing the operation risk;

[0005] In addition, the three-jaw puller is limited by its own structure, the contact area of the jaw end hook abutting against the end of the bearing inner ring is small, the force applied to the bearing inner ring is concentrated on a few points, and the risk of breakage and slipping of the jaw tip is high when a large force is applied; once it occurs, the risk of damage to the bearing and injury to the operator is large;

[0006] And because the contact area of the jaw tip of the three-jaw puller and the bearing inner ring is small, the stress is concentrated, and each time the dismounting is performed, a certain damage will be caused to the abutting position, and the accumulation of the damage will seriously affect the service life of the thrust bearing;

[0007] In addition, when the three-jaw puller is used to dismount the thrust bearing, the three-jaw puller is non-fixed relative to the rolling mill and the ground (non-fixed relative to the roller and the thrust bearing), and if the thrust bearing is loosened and a force is continuously applied, it is easy to cause the thrust bearing to disengage from the journal and then cause a sliding accident; during the dismounting process, the state of the bearing must be monitored in real time, and the force must be slowly applied from a position far away from the bearing (to ensure that the movement amplitude is small) to prevent the thrust bearing from suddenly sliding (falling and injuring people), and it is inconvenient to apply the force, and the inconvenience of applying the force will seriously affect the work efficiency.

[0008] Therefore, there is a need for a thrust bearing removal device with high reliability, low operation risk, less damage to the thrust bearing during the removal process, and high removal efficiency. SUMMARY

[0009] The technical problems of low reliability, high operation risk, great damage to the bearing during the removal process, and low removal efficiency of the thrust bearing removal device in the prior art are solved by providing a thrust bearing removal device.

[0010] The thrust bearing removal device provided by the embodiments of the present application comprises a center screw rod positioned on a nut seat and a force applying handle, and further comprises a force applying sleeve plate, a connecting body, a hard plate body vertically arranged and provided with the nut seat, a positioning clamp body, and a connecting rod.

[0011] The force applying sleeve plate is combined by a basic force applying plate and a spliced force applying plate through buckling splicing; the basic force applying plate and the spliced force applying plate are each provided with a sleeving groove at a splicing position, and the two sleeving grooves form a sleeving hole for sleeving the journal after splicing.

[0012] The connecting body is in a strip shape, and the number thereof is two; the two ends of the connecting body are fixed on the basic force applying plate and the plate body, respectively, and the combination of the three is in a frame structure; a bottom protection cover for blocking the falling of the thrust bearing during removal is detachably fixed on the position of the bottom of the connecting body close to the force applying sleeve plate.

[0013] The positioning clamp body is clamped and fixed on the shaft to be removed or the load bearing or other shaft near the shaft to be removed when in use.

[0014] The connecting rod is in a telescopic rod structure, and one end of the connecting rod is ball-jointed to the positioning clamp body, and the other end of the connecting rod is ball-jointed to the basic force applying plate.

[0015] Further, the connecting rod is combined by a telescopic rod body and a spliced rod body, and the two are fixed at the ends.

[0016] The telescopic rod body is a hard manual telescopic rod.

[0017] The spliced rod body is two hard rod bodies detachably fixed together through buckling.

[0018] Further, a row of blocking rods is arranged at the position of the bottom of the connecting body close to the plate body; the blocking rods are straight rods or bent rods, and the two ends of each blocking rod are fixed on the two connecting bodies, respectively; and the combination of the plurality of blocking rods is in a grid shape.

[0019] Further, the force applying sleeve plate has multiple specifications, and the sleeve holes of the force applying sleeve plates of different specifications have different sizes; the connecting body is detachably fixed on the base force applying plate; when different specifications of shafts and thrust bearings are dealt with, the force applying sleeve plate is replaced to ensure that the thrust bearing removal device is available.

[0020] Further, the force applying sleeve plate is positioned with a resisting body near the sleeve hole;

[0021] The resisting body is an arc-shaped hard strip, and there are two of them, which are fixed on the force applying sleeve plate near the sleeve hole and closely arranged near the sleeve hole;

[0022] The two arc-shaped hard strips are respectively fixed on the base force applying plate and the spliced force applying plate;

[0023] After the base force applying plate and the spliced force applying plate are combined, the resisting bodies thereon are combined into a ring shape; when the thrust bearing removal device is used, the resisting bodies resist the inner ring of the thrust bearing.

[0024] Preferably, a plurality of floating resisting assemblies are further included, the plurality of floating resisting assemblies are arranged in a ring shape, and are positioned at the periphery of the sleeve hole;

[0025] The floating resisting assembly includes a bearing frame body, a sliding rod body, an elastic force applying sheet, and an end resisting block;

[0026] The bearing frame body is a hard tubular frame body in the shape of a mouth, which is fixed on the base force applying plate or the spliced force applying plate on one side, and the axis thereof is perpendicular to the axis of the sleeve hole;

[0027] The sliding rod body penetrates the bearing frame body and slides along the axial direction of the bearing frame body;

[0028] The elastic force applying sheet is a belt-shaped elastic sheet, both ends of which are fixed on the end face edges of the bearing frame body away from the sleeve hole, and both ends are respectively located on both sides of the sliding rod body;

[0029] The elastic force applying sheet resists the end of the sliding rod body away from the sleeve hole;

[0030] The end resisting block is positioned at the end of the sliding rod body near the sleeve hole.

[0031] Preferably, the face of the end resisting block near the thrust bearing is not coplanar with the face of the bearing frame body near the thrust bearing, and relatively speaking, the end resisting block is closer to the thrust bearing; when force is applied, the end resisting block will resist the inner ring of the thrust bearing.

[0032] Preferably, a side pull hammer assembly, a positioning guide rail, and a linking rod are further included;

[0033] The side pull hammer assembly is positioned on the face of the bearing plate away from the force applying sleeve plate, and is in the structure of a pull hammer;

[0034] The surface of the end abutting block close to the shaft journal is provided with one or more bottom rotating wheels; the bottom rotating wheel is a cylindrical wheel body, the axial direction of which is the same as that of the sleeve hole, and it is rotationally connected to the end abutting block;

[0035] The positioning guide rails are arc-shaped guide rails, and there are two of them, which are close to the sleeve hole and are respectively fixed on the base force applying plate and the splicing force applying plate; after the base force applying plate and the splicing force applying plate are spliced and combined, the two positioning guide rails are combined into a ring-shaped guide rail;

[0036] The connecting rod is a hard rod body, which is slidingly positioned on the positioning guide rail and can rotate around the sleeve hole; one end of the connecting rod is ball-jointed to the connecting rod, and the other end is ball-jointed to the positioning clamp body.

[0037] Preferably, the surface of the base force applying plate close to the positioning clamp body is positioned with a sheet-shaped permanent magnet;

[0038] The connecting rod is made of a magnet material;

[0039] Before the splicing force applying plate is detached from the base force applying plate, the connecting rod is first adsorbed on the sheet-shaped permanent magnet, so as to avoid the connecting rod from falling off from the end of the positioning guide rail when the splicing force applying plate and the base force applying plate are detached.

[0040] Preferably, the carrier plate is further positioned with a center pull hammer assembly;

[0041] The center pull hammer assembly comprises a base ring, a rotating tube, a rotating rod and an arc-shaped pull hammer;

[0042] The base ring is a tubular ring body, one end of which is fixed to the surface of the carrier plate away from the connecting body and coaxial with the nut seat;

[0043] The rotating tube is a hard tube body, which rotates around the axis of the base ring;

[0044] The rotating rod is a hard straight rod with a C-shaped longitudinal section, one end of which is fixed to the end of the rotating tube away from the carrier plate and covers the center screw rod;

[0045] The arc-shaped pull hammer is a C-shaped hard block body, which is slidingly positioned on the rotating rod;

[0046] The force applying handle is a rod-shaped structure.

[0047] One or more technical solutions provided in the embodiments of the present application have at least the following technical effects or advantages:

[0048] By optimizing and improving the structure of existing thrust bearing removal equipment, a new type of thrust bearing removal equipment is provided, comprising a force-applying sleeve, a connecting body, a carrier plate, a central screw, a force-applying handle, a positioning clamp, and a connecting rod. The force-applying sleeve, connecting body, and carrier plate are combined to form a frame structure. The bottom of the connecting body is equipped with a bottom protective cover for holding the removed thrust bearing. During use, the force-applying sleeve is fitted onto the journal to apply pressure to the thrust bearing to be removed and contacts the thrust bearing surface. The positioning clamp is clamped and fixed to the shaft or other load-bearing object. The connecting rod is a telescopic rod structure that connects and positions the force-applying sleeve and the positioning clamp together. The presence of the positioning clamp can restrict the movement of the force-applying sleeve, connecting body, and carrier plate, thereby reducing the risk of the force-applying sleeve slipping. This effectively solves the technical problems of poor reliability, high operational risk, significant damage to the bearing during the removal process, and low removal efficiency in existing thrust bearing removal equipment. Thus, it achieves the technical effects of high reliability, low operational risk, minimal damage to the thrust bearing during the removal process, and high removal efficiency. Attached Figure Description

[0049] Figure 1 This is a schematic diagram of the thrust bearing removal equipment of this application;

[0050] Figure 2 This is a schematic diagram showing the positional relationship of the various components of the thrust bearing removal equipment in this application;

[0051] Figure 3 This is a schematic diagram showing the usage status of the thrust bearing removal equipment in this application;

[0052] Figure 4 This is an exploded view of the thrust bearing removal equipment for this application;

[0053] Figure 5 A schematic diagram showing the positional relationship between the telescopic pole and the splicing pole;

[0054] Figure 6 This is a schematic diagram showing the positional relationship between the contacting body and the force-applying sleeve.

[0055] Figure 7 This is a schematic diagram showing the positional relationship between the floating contact component and the force-applying sleeve.

[0056] Figure 8 This is a structural diagram of a floating contact component;

[0057] Figure 9 A cross-sectional view of the floating, conflicting components;

[0058] Figure 10 This is a schematic diagram showing the positional relationship between the side tie bar assembly and the carrier plate;

[0059] Figure 11The schematic view of the position relationship between the force applying sleeve plate and the positioning guide rail and the connecting rod;

[0060] Figure 12 The schematic view of the position relationship between the center pulling hammer assembly and the force applying sleeve plate;

[0061] Figure 13 The schematic view of the position relationship between the center pulling hammer assembly and the force applying sleeve plate;

[0062] In the figure:

[0063] Shaft 001, thrust bearing 002, sleeve hole 110, basic force applying plate 120, sleeve groove 121, spliced force applying plate 130, abutting body 140, bearing frame body 151, sliding rod body 152, elastic force applying piece 153, end abutting block 154, bottom rotating wheel 155, limiting rod 157, supporting body 158, positioning guide rail 160, connecting rod 170, connecting body 200, blocking rod 210, bottom protective cover 220, carrier plate 300, nut seat 310, center screw 400, force applying handle 500, positioning clamp body 600, connecting rod 700, telescopic rod body 710, spliced rod body 720, guide rod 810, end block 820, sliding hammer 830, basic ring 910, rotating rod 920, arc-shaped pulling hammer 930. DETAILED DESCRIPTION

[0064] In order to facilitate the understanding of the present application, the present application will be described in more detail below with reference to the relevant drawings; the preferred embodiments of the present application are shown in the drawings, but the present application can be implemented in many different forms, and is not limited to the embodiments described herein; on the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0065] It should be noted that the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used herein are only for illustrative purposes, and do not represent the only embodiment.

[0066] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used herein in the specification of the present application are only for the purpose of describing the specific embodiments, and are not intended to limit the present application; the term "and / or" used herein includes any and all combinations of one or more related listed items.

[0067] Example 1

[0068] For the sake of understanding, the mark 002 is used in the drawings to refer to the thrust bearing that needs to be disassembled, and the mark 001 is used to refer to the shaft (the roller where it is located) where the thrust bearing 002 is located.

[0069] As Figures 1 to 4 shown, the thrust bearing removal device of the present application comprises a force applying sleeve plate, a connecting body 200, a carrier plate 300, a central screw 400, a force applying handle 500, a positioning clamp body 600 and a connecting rod 700.

[0070] The force applying sleeve plate is a hard rectangular plate body, and a sleeving hole 110 is arranged at the center position; the sleeving hole 110 is a round through hole, which is sleeved on the journal of the shaft 001 during use; the force applying sleeve plate is composed of a basic force applying plate 120 and a spliced force applying plate 130, both of which are vertically arranged hard plate bodies, and are detachably fixed together by buckles or the like; a sleeving groove 121 is arranged at the bottom center position of the basic force applying plate 120 and the top center position of the spliced force applying plate 130; the sleeving groove 121 is an arc-shaped groove, which is sleeved on the journal during use; after the basic force applying plate 120 and the spliced force applying plate 130 are spliced and combined together, the two sleeving grooves 121 are combined to form the sleeving hole 110.

[0071] The connecting body 200 is a long strip-shaped hard plate body or rod body, and the number is two, which is arranged perpendicular to the force applying sleeve plate, and is fixed at one end on the side wall of the basic force applying plate 120 near the bottom and the end position, which plays a role of connection.

[0072] A row of blocking rods 210 is arranged at the position near the carrier plate 300 at the bottom of the connecting body 200; the blocking rod 210 is a straight rod or a bent rod, and the two ends are respectively fixed on the two connecting bodies 200, and the combination of a plurality of blocking rods 210 is in a grid shape.

[0073] The bottom of the connecting body 200 near the force applying sleeve plate is detachably fixed with a bottom protective cover 220; the bottom protective cover 220 is an arc-shaped plate-shaped cover body, and the top (end) thereof is detachably fixed on the two connecting bodies 200 by buckles or the like; after the bottom protective cover 220 is installed, the two sides are respectively near the blocking rod 210 and the force applying sleeve plate; the existence of the bottom protective cover 220 and the blocking rod 210 is used to hold the thrust bearing, so as to avoid the falling of the disassembled thrust bearing and damage the workers.

[0074] The carrier plate 300 is a vertically arranged hard plate body; the other end of the connecting body 200 is fixed on the surface of the carrier plate 300 near the force applying sleeve plate; the combination of the force applying sleeve plate, the connecting body 200 and the carrier plate 300 is in a frame structure as a whole.

[0075] A nut seat 310 is positioned at the center position of the carrier plate 300.

[0076] The central screw 400 is a hard metal screw, which penetrates the nut seat 310 and is threadedly connected with the nut seat 310, and is coaxial with the sleeving hole 110.

[0077] The force applying handle 500 is positioned at the end of the center screw 400 away from the force applying sleeve plate, and is a wheel-shaped handle or a rod-shaped handle, which drives the center screw 400 to rotate and move axially when rotating.

[0078] The positioning clamp body 600 is an electric or manual clamp, which is clamped and fixed on the load or the shaft near the shaft to be disassembled when in use.

[0079] Further, the clamping jaw of the positioning clamp body 600 is provided with a rubber pad for increasing the friction after clamping.

[0080] The connecting rod 700 is a telescopic rod structure, which can be telescoped, and one end is ball-jointed to the positioning clamp body 600, and the other end is ball-jointed to the position near the corner of the face of the base force applying plate 120 away from the connecting body 200; the telescopic rod structure and the ball-jointed positioning connecting rod 700 can enable the force applying sleeve plate to rotate in a small range, thereby improving the convenience of disassembly work; the existence of the telescopic rod structure and the ball-jointed positioning connecting rod 700 can also facilitate the fixation of the positioning clamp body 600, so that the positioning clamp body 600 can flexibly select its own fixation position.

[0081] Further, as shown in Figure 5 In order to improve the convenience of fixation of the positioning clamp body 600, the connecting rod 700 is composed of a telescopic rod body 710 and a spliced rod body 720, and the two ends are fixed together; the telescopic rod body 710 is a hard manual telescopic rod, which can be telescoped as needed; the spliced rod body 720 is two hard rod bodies which are detachably fixed together by buckles; when using the thrust bearing disassembly device, the positioning clamp body 600 can be fixed first, and then the spliced rod body 720 is used to combine the positioning clamp body 600 and the force applying sleeve plate together.

[0082] The buckle is a prior art, which will not be described here.

[0083] Preferably, the buckle of the spliced rod body 720 is controlled by a button, which is positioned on the spliced rod body 720 near the force applying sleeve plate, and after pressing the button, the force is transmitted to the buckle of the spliced rod body 720 through the rod body, the plate body or the rope body to make it loose, thereby facilitating disassembly and assembly.

[0084] Further, in order to improve the applicability, the force applying sleeve plate has multiple specifications, and the sizes of the sleeve set holes 110 of the force applying sleeve plates of different specifications are different; the connecting body 200 can be detachably fixed on the base force applying plate 120; when dealing with different specifications of shafts and thrust bearings, the device can be used by replacing the force applying sleeve plate.

[0085] Considering that the end faces of the outer ring and the inner ring of the thrust bearing can not be coplanar due to installation errors, load deformation and special designs adopted in the design stage, in order to avoid applying force on the outer ring of the bearing during disassembly and thus damaging the bearing and affecting disassembly, preferably, as shown in Figure 6 The force applying sleeve plate is provided with a resisting body 140 at a position close to the sleeving hole 110. The resisting body 140 is an arc-shaped hard strip, and two arc-shaped hard strips are fixed on the force applying sleeve plate at positions close to the sleeving hole 110 and abut against the sleeving hole 110. The two arc-shaped hard strips are respectively fixed on the basic force applying plate 120 and the spliced force applying plate 130. After the basic force applying plate 120 and the spliced force applying plate 130 are combined, the resisting bodies 140 thereon are combined into a ring shape. When the thrust bearing dismounting device of the present application is used, the resisting bodies 140 abut against the inner ring of the thrust bearing.

[0086] Preferably, the resisting bodies 140 can be detachably fixed on the force applying sleeve plate and can be disassembled as needed.

[0087] When the thrust bearing dismounting device of the present application is used:

[0088] 1. First, the positioning clamp body 600 is clamped and fixed on the shaft on which the thrust bearing is to be dismounted or on a load-bearing object near the shaft or on another shaft. When the connecting rod 700 is elongated to the maximum length, the force applying sleeve plate will not slip off the journal under the restriction of the connecting rod 700 and the positioning clamp body 600.

[0089] 2. Then, the hand-held load plate 300 and the connecting body 200 are used to sleeve the basic force applying plate 120 on the journal of the shaft on which the thrust bearing is to be dismounted and to enclose the thrust bearing to be dismounted.

[0090] 3. Then, the spliced force applying plate 130 is installed to sleeve the journal. After that, the bottom protective cover 220 is fixed.

[0091] 4. The central screw 400 is rotated to abut against the end of the shaft and to gradually apply force on the thrust bearing to gradually dismount the thrust bearing by extrusion. Even if the thrust bearing is separated from the journal due to the extrusion of the force applying sleeve plate, the thrust bearing will be caught by the bottom protective cover 220 and will not fall off to damage the bearing, other components and the operator.

[0092] 5. Finally, the components are dismounted.

[0093] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages:

[0094] The technical problems of poor reliability, high operation risk, great damage to the bearing during dismounting and low dismounting efficiency of the thrust bearing dismounting device in the prior art are solved, and the technical effects of high reliability, low operation risk, less damage to the thrust bearing during dismounting and high dismounting efficiency of the thrust bearing dismounting device are achieved.

[0095] Embodiment 2

[0096] In order to further improve the applicability of the thrust bearing dismounting device and the convenience of the use process, and improve the work efficiency, the embodiment of the application adds a plurality of floating contact components on the basis of the above-mentioned embodiment. The plurality of floating contact components are arranged in a ring shape and positioned on the circumference of the sleeving hole 110. Part of the floating contact components are positioned on the surface of the base pressing plate 120 away from the positioning clamp body 600, and part of the floating contact components are positioned on the surface of the spliced pressing plate 130 away from the positioning clamp body 600. When in use, all the floating contact components contact the shaft neck, thereby being able to adapt to shafts of various specifications under the premise of avoiding damage to the thrust bearing caused by local stress. Specifically:

[0097] As shown in Figures 7 to 9 , the floating contact component comprises a bearing frame 151, a sliding rod body 152, an elastic pressing sheet 153, and an end contact block 154.

[0098] The bearing frame 151 is a hard tubular frame with a mouth shape. One side is fixed on the base pressing plate 120 or the spliced pressing plate 130 and is arranged close to the sleeving hole 110. The axis is perpendicular to the axis of the sleeving hole 110.

[0099] The sliding rod body 152 is a hard straight rod. It penetrates into the bearing frame 151 and slides along the axial direction of the bearing frame 151, thereby driving the end contact block 154 to move.

[0100] The elastic pressing sheet 153 is a belt-shaped elastic sheet. Both ends are fixed on the end surface edge of the bearing frame 151 away from the sleeving hole 110, and the two ends are respectively located on both sides of the sliding rod body 152. The elastic pressing sheet 153 itself contacts the end part of the sliding rod body 152 away from the sleeving hole 110. When the sliding rod body 152 moves in the direction away from the sleeving hole 110 due to stress, the elastic pressing sheet 153 accumulates elastic potential energy.

[0101] The end contact block 154 is a hard block body. It is positioned on the end part of the sliding rod body 152 close to the sleeving hole 110. After the pressing sleeve plate is sleeved on the shaft neck, the end contact block 154 contacts the shaft neck. The end contact block 154 is used to apply extrusion force to the thrust bearing.

[0102] After the pressing sleeve plate is sleeved on the shaft neck, the floating contact component will automatically adapt to the shaft neck. The end contact block 154 contacts the thrust bearing surface, and the surface contacting the thrust bearing is a plane (because the end contact block 154 is in surface contact with the thrust bearing instead of point contact, and the surface contacting the thrust bearing is a plane, and the contact position is more, the damage to the thrust bearing during the dismounting process is smaller). The force applied by the pressing sleeve plate on the floating contact component is transmitted to the thrust bearing through the end contact block 154.

[0103] Further, the number of the floating interference components is 6 or more, and the distances between them are equal.

[0104] Preferably, the end interference block 154 is an arc-shaped block hinged at the end of the sliding rod 152, and the surface close to the journal is an arc surface.

[0105] Preferably, the surface of the end interference block 154 close to the thrust bearing is not coplanar with the surface of the bearing frame 151 close to the thrust bearing, and the end interference block 154 is relatively closer to the thrust bearing; when force is applied, the end interference block 154 will interfere with the inner ring of the thrust bearing.

[0106] Further, in order to increase the firmness of the floating interference component and prolong its service life, a reinforcing frame body is positioned on the surface of the force applying sleeve plate away from the positioning clamp body 600; the reinforcing frame body comprises a limiting rod 157 and a support body 158; the limiting rod 157 is an arc-shaped rod body closely arranged on the surface of the sliding rod 152 away from the force applying sleeve plate, and is fixed on the limiting rod 157 through the support body 158; the support body 158 is a hard frame body; when the interference body 140 is under stress, the limiting rod 157 limits the non-axial movement of the interference body 140.

[0107] Embodiment 3

[0108] Further improve the disassembly efficiency for stubborn (firm) bearings and reduce the risk of damage, the embodiment of the application adds a side pull hammer component, a positioning guide rail 160 and a connecting rod 170 on the basis of the above-mentioned embodiments, and optimizes and improves the structure of the end interference block 154, and uses the pull hammer oscillation to assist disassembly; specifically:

[0109] As shown in Figures 9 to 11 the side pull hammer component is positioned on the surface of the carrier plate 300 away from the force applying sleeve plate, comprising a guide rod 810, an end block 820 and a sliding hammer 830; the guide rod 810 is a hard straight rod, which is arranged vertically to the carrier plate 300 and is fixed at one end of the carrier plate 300 close to the end edge of the carrier plate 300; the end block 820 is a hard block body, which is fixed at one end of the guide rod 810 away from the fixed point of itself, and is used to limit the sliding hammer 830 to prevent it from sliding out; the sliding hammer 830 is a tubular block body, which is sleeved and slidingly positioned on the guide rod 810; in use, the sliding hammer 830 is made to hit the end block 820;

[0110] One or more bottom rotating wheels 155 are arranged on the surface of the end interference block 154 close to the journal; the bottom rotating wheel 155 is a cylindrical wheel body, which is axially the same as the sleeve hole 110, and is rotationally connected to the end interference block 154, and is used to interfere with the journal in use; due to the existence of the bottom rotating wheel 155, the force applying sleeve plate can be rotated around the axis of the sleeve hole 110 as needed;

[0111] The positioning guide rail 160 is an arc-shaped guide rail, and two are arranged close to the sleeve hole 110 and fixed on the surface of the base force plate 120 close to the positioning clamp body 600 and the surface of the splicing force plate 130 close to the positioning clamp body 600; after the base force plate 120 and the splicing force plate 130 are spliced and combined, the two positioning guide rails 160 are combined into a ring-shaped guide rail; the connecting rod 700 is ball-jointed at one end to the connecting rod 170 and ball-jointed at the other end to the positioning clamp body 600.

[0112] The surface of the connecting body 200 away from the blocking rod 210 is also provided with a row of hard rods for guardrail effect, and even if the thrust bearing is separated from the journal, there is no risk of falling due to the presence of these hard rods.

[0113] When the thrust bearing removal equipment of the embodiment is used: during the disassembly process, if it is found that the thrust bearing is difficult to disassemble and cannot be removed by applying a larger force, and it is also worried that continuing to apply force will cause damage to the thrust bearing; then control the sliding hammer 830 to slide one or more times, and then slightly relax the extrusion of the thrust bearing by the force applying sleeve plate by rotating the central screw 400, and then control the carrier plate 300 to rotate 30 to 180 degrees; thereafter, the pressure on the thrust bearing is applied again by rotating the central screw 400; control the sliding hammer 830 to continue to slide one or more times; repeat the actions of relaxing the thrust bearing, rotating the carrier plate 300, pressing the thrust bearing, and sliding the sliding hammer 830, until the thrust bearing is removed; during this process, it is equivalent to using a copper hammer to hit multiple points on the circumference of the force applying sleeve plate multiple times (in actual operation, the space around the shaft is small, and it is difficult to use a copper hammer), thereby assisting the efficient and low-damage removal of stubborn thrust bearings.

[0114] Further, the surface of the base force plate 120 close to the positioning clamp body 600 is positioned with a sheet-shaped permanent magnet (sheet-shaped magnet); the connecting rod 170 is made of magnet material; before the splicing force plate 130 is disassembled from the base force plate 120, the connecting rod 170 is first adsorbed on the sheet-shaped permanent magnet, so as to avoid the connecting rod 170 from falling off from the end of the positioning guide rail 160 when the splicing force plate 130 and the base force plate 120 are disassembled.

[0115] Preferably, as Figure 12 and Figure 13As shown, in order to further improve the efficiency and convenience of disassembling the thrust bearing without affecting the use and service life of the central screw 400, the center puller assembly is also positioned on the carrier plate 300; the center puller assembly comprises a base ring 910, a rotating pipe, a rotating rod 920 and an arc-shaped puller 930; the base ring 910 is a hard tubular ring body, one end of which is fixed on the side of the carrier plate 300 away from the connecting body 200, coaxial with and covering the nut seat 310; the rotating pipe is a hard pipe body, the side wall of which is close to the side wall of the base ring 910 and is embedded and rotationally connected on the base ring 910, rotating around the axis of the base ring 910; the rotating rod 920 is a hard straight rod with a C-shaped longitudinal section, one end of which is fixed on the end of the rotating pipe away from the carrier plate 300, covering the center screw 400 and rotating with the rotating pipe; the end of the rotating rod 920 away from the rotating pipe is provided with a stop block fixed on the rotating rod 920, which is used to block the arc-shaped puller 930 from sliding out of the rotating rod 920; the arc-shaped puller 930 is a C-shaped hard block body, which is slidingly positioned on the rotating rod 920; the contact surface between the rotating rod 920 and the arc-shaped puller 930 is provided with a groove and / or a protrusion for limiting the sliding direction of the arc-shaped puller 930; the force applying handle 500 is a rod-shaped structure; before the center screw 400 is exposed from the end of the rotating rod 920, the force applying handle 500 is located at the gap of the rotating rod 920, and because the rotating rod 920 can rotate freely, the presence of the center puller assembly does not affect the control of the center screw 400; after the center screw 400 is exposed from the end of the rotating rod 920, the center puller assembly does not affect the control of the center screw 400; after the sliding hammer 830 is controlled to slide once or multiple times, the center puller assembly is controlled to operate once or multiple times (when the center puller assembly is operated, the arc-shaped puller 930 is controlled to slide along the rotating rod 920 and impact), thereby further improving the processing efficiency for stubborn thrust bearings.

[0116] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thrust bearing removal apparatus comprising a central screw (400) and a force application handle (500) positioned on a nut seat (310), characterized in that: It also comprises a force applying sleeve plate, a connecting body (200), a carrier plate (300) provided with a nut seat (310) and vertically arranged hard plate body, a positioning clamp body (600) and a connecting rod (700); The force applying sleeve plate is combined by a basic force applying plate (120) and a spliced force applying plate (130) through buckle splicing; the basic force applying plate (120) and the spliced force applying plate (130) are both provided with a sleeve groove (121) at the splicing position; the two sleeve grooves (121) are spliced to form a sleeve hole (110) for sleeving the journal; The connecting body (200) is long strip-shaped, and two connecting bodies are fixed at the basic force applying plate (120) and the carrier plate (300) respectively, and the combination of the three is in the form of a frame structure; the bottom of the connecting body (200) is detachably fixed with a bottom protective cover (220) for preventing the thrust bearing from falling off when being disassembled. The positioning clamp body (600) is clamped and fixed on the shaft to be disassembled or the load or other shaft near the shaft to be disassembled when in use. The connecting rod (700) is in the form of a telescopic rod, one end of which is ball-jointed to the positioning clamp body (600), and the other end is ball-jointed to the basic force applying plate (120). It also comprises a plurality of floating contact components arranged in a ring shape and positioned at the circumference of the sleeve hole (110). The floating contact component comprises a bearing frame (151), a sliding rod body (152), an elastic force applying sheet (153) and an end contact block (154). The bearing frame (151) is a hard tubular frame in the shape of a mouth, one side of which is fixed to the basic force applying plate (120) or the spliced force applying plate (130), and the axis thereof is perpendicular to the axis of the sleeve hole (110). The sliding rod body (152) penetrates the bearing frame (151) and slides along the axial direction of the bearing frame (151). The elastic force applying sheet (153) is a belt-shaped elastic sheet, both ends of which are fixed to the end face edges of the bearing frame (151) away from the sleeve hole (110), and both ends are located at the two sides of the sliding rod body (152) respectively. The elastic force applying sheet (153) contacts the end of the sliding rod body (152) away from the sleeve hole (110). The end contact block (154) is positioned at the end of the sliding rod body (152) close to the sleeve hole (110).

2. The thrust bearing removal apparatus of claim 1, wherein: The connecting rod (700) is combined by a telescopic rod body (710) and a spliced rod body (720), and both ends thereof are fixed together; The telescopic rod body (710) is a hard manual telescopic rod; The spliced rod body (720) is two hard rod bodies which are detachably fixed together through buckle.

3. The thrust bearing removal apparatus of claim 1, wherein: A row of blocking rods (210) is arranged at the position of the bottom of the connecting body (200) close to the carrier plate (300); the blocking rod (210) is a straight rod or a bent rod, both ends of which are fixed on two connecting bodies (200) respectively, and a plurality of blocking rods (210) are combined in the form of a grid.

4. The thrust bearing removal apparatus of claim 1, wherein: The face of the end abutting block (154) close to the thrust bearing is not coplanar with the face of the bearing frame (151) close to the thrust bearing, and the end abutting block (154) is relatively closer to the thrust bearing; when the force is applied, the end abutting block (154) will abut the inner ring of the thrust bearing.

5. The thrust bearing removal apparatus of claim 1, wherein: It also includes a side pull hammer assembly, a positioning guide rail (160) and a connecting rod (170); The side pull hammer assembly is positioned on the face of the carrier plate (300) away from the force applying sleeve plate, and is a pull hammer structure; The face of the end abutting block (154) close to the shaft neck is provided with one or more bottom rotating wheels (155); the bottom rotating wheel (155) is a cylindrical wheel body, the axial direction of which is the same as that of the sleeve hole (110), and it is rotationally connected to the end abutting block (154); The positioning guide rail (160) is an arc-shaped guide rail, and there are two of them, which are close to the sleeve hole (110) and are fixed on the base force applying plate (120) and the spliced force applying plate (130) respectively; after the base force applying plate (120) and the spliced force applying plate (130) are spliced and combined, the two positioning guide rails (160) are combined into a ring-shaped guide rail; The connecting rod (700) is a hard rod body, which is slidingly positioned on the positioning guide rail (160) and can rotate around the sleeve hole (110); one end of the connecting rod (700) is ball-jointed to the connecting rod (170), and the other end is ball-jointed to the positioning clamp body (600).

6. The thrust bearing removal apparatus of claim 5, wherein: The face of the base force applying plate (120) close to the positioning clamp body (600) is positioned with a sheet-shaped permanent magnet; The connecting rod (170) is made of a magnet material; Before the spliced force applying plate (130) is detached from the base force applying plate (120), the connecting rod (170) is first adsorbed on the sheet-shaped permanent magnet, so as to avoid the connecting rod (170) from falling off the end of the positioning guide rail (160) when the spliced force applying plate (130) and the base force applying plate (120) are detached.

7. The thrust bearing removal apparatus of any one of claims 1, 4, 5, 6, wherein: The carrier plate (300) is also positioned with a center pull hammer assembly; The center pull hammer assembly includes a base ring (910), a rotating tube, a rotating rod (920) and an arc-shaped pull hammer (930); The base ring (910) is a tubular ring body, one end of which is fixed to the face of the carrier plate (300) away from the connecting body (200) and coaxial with the nut seat (310); The rotating tube is a hard tube body, which rotates around the axis of the base ring (910); The rotating rod (920) is a hard straight rod with a C-shaped longitudinal section, one end of which is fixed to the end of the rotating tube away from the carrier plate (300) and covers the center screw rod (400); The arc-shaped pull hammer (930) is a C-shaped hard block body, which is slidingly positioned on the rotating rod (920); The force applying handle (500) is a rod-shaped structure.

Images