Bearing hoisting mechanism and hoisting system with stepless diameter adjustment function

Abstract

The utility model discloses a bearing hoisting mechanism and hoisting system capable of adjusting diameter in a stepless mode, the bearing hoisting mechanism capable of adjusting diameter in a stepless mode comprises a circular ring beam which is a circular ring-shaped welding framework, the outer diameter of the circular ring beam is smaller than the inner diameter of a bearing needing to be hoisted, and a plurality of carrier blocks are evenly distributed on the circumference of the circular ring beam. A plurality of hoisting points for hoisting are uniformly distributed on the circumference of the top surface of the circular ring beam; a sliding rail groove formed in the radial direction is formed in the bottom of the carrier block, the telescopic assembly is slidably connected into the sliding rail groove in a guiding mode, and the front end, extending out of the outer wall of the circular ring beam, of the telescopic assembly is borne below the bottom face of a bearing needing to be hoisted; the adjusting assemblies are arranged on the inner side walls of the carrier blocks, and the adjusting assemblies can adjust the lengths, extending out of the circular ring beam, of the telescopic assemblies; the adjusting assemblies, the telescopic assemblies and the carrier blocks are arranged in a one-to-one correspondence mode. According to the utility model, the change form of the hoisting diameter is consistent, and the hoisting requirements of various bearings with different diameter specifications can be met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the assembly technical field of wind driven generator, especially to a bearing hoisting mechanism and hoisting system of stepless adjustment diameter. BACKGROUND

[0002] Wind power generation is a kind of clean and renewable energy, and has been widely applied and developed in recent years. The main shaft and the main shaft fixing seat in wind turbine generator are assembled together through bearings, and two or more than two specifications of bearings need to be assembled. The diameters of bearings of different specifications are different, and the clamping position of the hoisting mechanism will also change accordingly when hoisting. At present, different hoisting mechanisms corresponding to different specifications of bearings are often used to ensure the stability of hoisting, and the existing hoisting mechanisms cannot zoom the hoisting diameter. If the size of the diameter can be adjusted on one hoisting mechanism to adapt to different bearings, the efficiency of bearing assembly will be greatly improved.

[0003] In order to overcome the above problems, a bearing hoisting mechanism and hoisting system of stepless adjustment diameter are needed. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a bearing hoisting mechanism and hoisting system of stepless adjustment diameter, which has continuity in the form of change of hoisting diameter, and can meet the hoisting requirements of bearings of various different diameter specifications.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model discloses a bearing hoisting mechanism of stepless adjustment diameter for hoisting bearings, which comprises:

[0007] The circular ring beam is a circular ring welding frame, the outer diameter of the circular ring beam is smaller than the inner diameter of the bearing to be hoisted, a plurality of carrier blocks are uniformly distributed on the circumference of the circular ring beam, and a plurality of lifting points for lifting are arranged on the top surface of the circular ring beam.

[0008] The telescopic assembly is guided and slidably connected in the slide rail groove, and the front end of the telescopic assembly protruding out of the outer wall of the circular ring beam is supported below the bottom surface of the bearing to be hoisted.

[0009] The adjusting assembly is arranged on the inner side wall of the carrier block, and the adjusting assembly can adjust the length of the telescopic assembly protruding out of the circular ring beam; the adjusting assembly, the telescopic assembly and the carrier block are arranged in consistent number and one-to-one correspondence.

[0010] Further, the lifting point comprises a lifting eye, a plurality of lifting eye holes are uniformly distributed on the top surface of the circular ring beam, and the lifting eye hole is screw connected with a lifting eye for lifting.

[0011] Further, the telescopic assembly comprises a sliding block and a tail plate, the sliding rail groove is a T-shaped groove or a dovetail groove, the top of the sliding block is provided with a T-shaped block or a dovetail block, the tail plate is bolted on the inner end face of the sliding block, and the adjusting assembly drives the tail plate.

[0012] Further, the front end of the sliding block is provided with a bearing table, and the bottom plane of the bearing table is in contact with the bottom face of the bearing outer ring.

[0013] Further, the inner side of the bearing table is provided with a side pad block through a countersunk screw, and the side pad block is in abutment with the inner side wall of the bearing outer ring.

[0014] Further, the sliding block is provided with identification points, a plurality of identification points are arranged at intervals along the length direction of the sliding block, and different identification points correspond to bearings of different specifications that need to be hoisted.

[0015] Further, the adjusting assembly comprises an adjusting screw and a support plate frame, the support plate frame is installed on the inner side wall of the carrier block through a mounting through hole of a screw and a root, the adjusting screw is rotatably installed on the inner side wall of the carrier block and the inner end drop plate of the support plate frame, and the top of the tail plate is centrally provided with a driving threaded hole, and the screw segment of the middle part of the adjusting screw is threadedly connected with the driving threaded hole.

[0016] Further, the telescopic assembly comprises a sliding block and a tail plate, the sliding rail groove is a T-shaped groove or a dovetail groove, the top of the sliding block is provided with a T-shaped block or a dovetail block, the tail plate is bolted on the inner end face of the sliding block, and the adjusting assembly drives the tail plate.

[0017] Further, the telescopic assembly comprises a sliding block and a tail plate, the sliding rail groove is a T-shaped groove or a dovetail groove, the top of the sliding block is provided with a T-shaped block or a dovetail block, the tail plate is bolted on the inner end face of the sliding block, and the adjusting assembly drives the tail plate.

[0018] The utility model discloses still a kind of bearing hoisting system of infinitely variable diameter, using the bearing hoisting mechanism of infinitely variable diameter described in any one of the above to hoist bearing, still include chain assembly, roof beam body and sling, the number of the chain assembly and the number of the lifting point are consistent and one-to-one correspondence setting, the top of the roof beam body is connected the top of the chain assembly by lifting eye plate, the middle lug seat of the top face of the roof beam body is connected the sling by unloading buckle, the sling is connected on the lifting hook of crane or headstock.

[0019] Compared with prior art, the beneficial technical effects of the utility model are:

[0020] This utility model relates to a bearing hoisting mechanism with infinitely adjustable diameter. It employs a circular beam with an outer diameter smaller than the inner diameter of the bearing to be hoisted, using an internal support method for clamping, ensuring high reliability and facilitating observation of the bearing's positioning. Multiple solid metal carrier blocks with sliding grooves are evenly distributed around the circumference of the circular beam, providing high structural strength. The adjusting and telescopic components, working in conjunction with the carrier blocks, allow for continuous adjustment of the telescopic component's protrusion beyond the outer wall of the circular beam, thus enabling the clamping of bearings of different diameters. This infinitely adjustable bearing hoisting mechanism offers a continuous range of lifting diameter changes, meeting the hoisting requirements of various bearing diameter specifications.

[0021] Furthermore, the lifting ring hole and lifting ring facilitate connection with other lifting devices. The use of a rotating lifting ring reduces torsional stress, primarily supporting tensile stress. By designing the slide rail groove as a T-slot or dovetail groove, and correspondingly setting the top of the slider as a T-block or dovetail block, the combined design provides significant bending strength, capable of supporting the weight of the bearing to be lifted. Adding side pads against the inner wall of the bearing outer ring allows for pre-tightening, preventing horizontal swaying of the bearing outer ring in this embodiment's infinitely adjustable diameter bearing lifting mechanism. Adding marking points on the side wall of the slider provides a basis for manual adjustment of the slider's extension length. The adjustment screw is mounted on a support plate, enabling its rotation. The screw is threadedly connected to the drive threaded hole of the tail plate; rotating the screw head allows for continuous reciprocating sliding of the slider. The addition of ribs significantly increases the structural strength of the support plate. By designing the screw through-hole as an inverted gourd shape, the adjusting screw can be easily disassembled and installed onto the support plate frame. The addition of the clamping components, with multiple clamping components and carrier blocks corresponding and staggered, effectively clamps the entire circumference of the circular beam, preventing loosening of the bearings requiring hoisting. The swing arm's rotation relative to the central axis of the handwheel screw allows switching between the extended working position and the retracted standby position. Manually rotating the pressure rod to clamp the bearing top surface facilitates operator control of the clamping force. The addition of clamping pads protects the bearing top surface, preventing scratch damage.

[0022] This utility model relates to a bearing hoisting system with infinitely adjustable diameter. The top beam, positioned horizontally above the circular ring beam, lowers the center of gravity of the entire hoisting system, making hoisting more stable and reliable. The spiral buckle allows for easy adjustment of the length of each chain assembly, ensuring consistency. The multiple hoisting holes on the hoisting plate, evenly spaced along the diameter, facilitate adaptation when replacing circular ring beams of different diameters. Attached Figure Description

[0023] The utility model discloses make further explanation to the utility model with the drawings.

[0024] Figure 1 It is the overhead structure schematic diagram of embodiment 1 of the utility model infinitely variable diameter bearing hoisting mechanism,

[0025] Figure 2 It is the three-dimensional structure schematic diagram of embodiment 1 of the utility model infinitely variable diameter bearing hoisting mechanism,

[0026] Figure 3 It is the structure schematic diagram when the telescopic subassembly of embodiment 1 of the utility model hoists small-sized bearing,

[0027] Figure 4 It is the structure schematic diagram when the telescopic subassembly of embodiment 1 of the utility model hoists large-sized bearing,

[0028] Figure 5 It is the front view structure schematic diagram of slider and tailgate in the utility model,

[0029] Figure 6 It is the front view structure schematic diagram of support plate frame in the utility model,

[0030] Figure 7 It is the overhead structure schematic diagram of embodiment 2 of the utility model infinitely variable diameter bearing hoisting mechanism,

[0031] Figure 8 It is the working schematic diagram of the compression subassembly of embodiment 2 of the utility model,

[0032] Figure 9 The utility model embodiment 3 infinitely variable diameter bearing hoisting system's main view structure schematic diagram.

[0033] Mark explanation: 1, circular beam;101, carrier block;102, lifting ring hole;103, slide rail slot;2, slider;201, bearing table;202, identification point;3, tailgate;301, drive screw hole;4, adjusting screw;5, support plate frame;501, screw through hole;502, installation through hole;6, side cushion block;7, lifting ring;8, support table;9, compression lever;901, compression cushion block;10, swing arm;11, hand wheel screw;12, lifting hook;13, spiral buckle;14, chain;15, roof beam body;151, lifting hole plate;16, sling;17, bearing outer ring. Specific implementation

[0034] The utility model discloses make further explanation to the utility model with the drawings.

[0035] The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present utility model.

[0036] In the description of the present utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present utility model.

[0037] Referring to the drawings, Figure 1 It is a top view structural schematic diagram of the bearing hoisting mechanism with infinitely adjustable diameter of the present utility model embodiment 1. Figure 2 It is a perspective view structural schematic diagram of the bearing hoisting mechanism with infinitely adjustable diameter of the present utility model embodiment 1. Figure 3 It is a structural schematic diagram of the telescopic assembly when hoisting small-sized bearings of the present utility model embodiment 1. Figure 4 It is a structural schematic diagram of the telescopic assembly when hoisting large-sized bearings of the present utility model embodiment 1. Figure 5 It is a front view structural schematic diagram of the sliding block and the tail plate in the present utility model. Figure 6 It is a front view structural schematic diagram of the support plate frame in the present utility model. Figure 7 It is a top view structural schematic diagram of the bearing hoisting mechanism with infinitely adjustable diameter of the present utility model embodiment 2. Figure 8 It is a working schematic diagram of the pressing assembly of the present utility model embodiment 2. Figure 9 It is a front view structural schematic diagram of the bearing hoisting system with infinitely adjustable diameter of the present utility model embodiment 3.

[0038] Embodiment 1

[0039] In a specific embodiment, as Figures 1 to 6 shown, the present utility model bearing hoisting mechanism with infinitely adjustable diameter is used for hoisting bearings. The diameter of the bearing for the main shaft of a wind turbine is often more than 2 meters, and the bearing is customized. The specifications of the bearings of different main machine plants differ greatly and there is no unified standard. Therefore, the lifting appliance needs to have sufficient versatility to reduce the investment cost of the lifting appliance.

[0040] The present utility model bearing hoisting mechanism with infinitely adjustable diameter comprises:

[0041] The circular beam 1 is a circular ring welding frame, and its cross section is in the form of an I-beam. The outer diameter of the circular beam 1 is smaller than the inner diameter of the bearing to be hoisted, and the circular beam 1 is clamped by an inner support mode. A plurality of carrier blocks 101 are uniformly distributed on the circumference of the top surface of the circular beam 1, and the carrier blocks 101 and other parts of the ring beam are fixedly connected by welding.

[0042] The telescopic assembly is guided and slidably connected in the slide rail groove 103, and the front end of the telescopic assembly protruding from the outer wall of the circular beam 1 is supported below the bottom surface of the bearing to be hoisted.

[0043] The adjusting assembly is arranged on the inner side wall of the carrier block 101, and the adjusting assembly can continuously adjust the length of the telescopic assembly protruding from the circular beam 1. The adjusting assembly, the telescopic assembly and the carrier block 101 are arranged in a one-to-one correspondence.

[0044] The circular beam 1 with an outer diameter smaller than the inner diameter of the bearing to be hoisted is clamped by an inner support mode, which is reliable and convenient for observing the in-place position of the bearing. A plurality of carrier blocks 101 are uniformly distributed on the circumference of the circular beam 1, the carrier blocks 101 are solid metal blocks, and the slide rail groove 103 is provided, so that the structure has high strength. The adjusting assembly and the telescopic assembly are arranged on the carrier block 101 in cooperation, which can continuously adjust the length of the front end of the telescopic assembly protruding from the outer wall of the circular beam 1, thereby clamping bearings of different diameters. The bearing hoisting mechanism with the infinitely adjustable diameter can continuously change the hoisting diameter and can meet the hoisting requirements of bearings of various diameters.

[0045] In a specific embodiment of the present embodiment, as shown in Figures 1 to 4 The lifting points include lifting eye holes 102, and a plurality of lifting eye holes 102 are uniformly distributed on the top surface of the circular beam 1. The lifting eye holes 102 are threadedly connected with lifting eyes 7 for lifting.

[0046] Specifically, as shown in Figure 3 and Figure 4 The lifting eyes 7 are specifically rotary lifting eyes, and the specification of the connecting threads is M16. In a specific embodiment, the lifting eye holes 102 are arranged on the carrier blocks 101 and arranged in a one-to-one correspondence with the carrier blocks 101.

[0047] Obviously, the lifting points can also be arranged by directly welding the lifting eyes on the top surface of the circular beam 1, and similar simple replacement methods also fall within the protection scope of the present application.

[0048] The lifting ring hole 102 and the lifting ring 7 are arranged, so that the lifting ring 7 can be connected with other lifting devices, and the lifting ring 7 is a rotating lifting ring, so that the torsion stress of the lifting ring is reduced, and the lifting ring mainly bears the tensile stress.

[0049] In a specific embodiment of the present embodiment, as shown in Figures 1 to 6 The telescopic assembly includes a sliding block 2 and a tail plate 3, the sliding rail groove 103 is a T-shaped groove or a dovetail groove, the top of the corresponding sliding block 2 is provided with a T-shaped block or a dovetail block, and the tail plate 3 is bolted to the inner end face of the sliding block 2, and the adjusting assembly drives the tail plate 3.

[0050] Specifically, as shown in Figures 1 to 4 The front end of the sliding block 2 is provided with a bearing table 201, and the bottom plane of the bearing table 201 is in contact with the bottom surface of the bearing outer ring 17. Figure 3 and Figure 4 Both are described by hoisting the bearing outer ring 17. Obviously, the infinitely adjustable diameter bearing hoisting mechanism of the present embodiment can clamp and hoist the large-diameter circular ring-shaped flat-bottomed member, and the drawings shown should not be regarded as a limitation on the technical solutions of the present utility model.

[0051] Specifically, as shown in Figures 1 to 4 The inner side of the bearing table 201 is provided with a side pad 6 through a countersunk screw, and the side pad 6 abuts against the inner side wall of the bearing outer ring 17. The side pad 6 is made of nylon material.

[0052] Specifically, as shown in Figure 3 and Figure 4 The side wall of the sliding block 2 is provided with a mark point 202, and a plurality of mark points 202 are arranged at intervals along the length direction of the sliding block 2. Different mark points 202 correspond to bearings of different specifications that need to be hoisted.

[0053] The sliding rail groove 103 is a T-shaped groove or a dovetail groove, the top of the corresponding sliding block 2 is provided with a T-shaped block or a dovetail block, and the tail plate 3 is bolted to the inner end face of the sliding block 2, and the adjusting assembly drives the tail plate 3.

[0054] In a specific embodiment of the present embodiment, as shown in Figures 1 to 6As shown, the adjusting assembly comprises an adjusting screw 4 and a support bracket 5, which is mounted on the inner side wall of the carrier block 101 through a mounting through hole 502 at the root. The adjusting screw 4 is rotatably mounted on the inner side wall of the carrier block 101 and the inner end overhang plate of the support bracket 5, and the adjusting screw 4 cannot axially move. The bolt head of the adjusting screw 4 is on the side towards the center of the circular beam 1, and the end of the adjusting screw 4 is a light pole and is rotatably mounted in the light hole of the inner side wall of the carrier block 101. The top of the tail plate 3 is centrally provided with a driving threaded hole 301, and the screw segment of the middle of the adjusting screw 4 is threadedly connected to the driving threaded hole 301.

[0055] Obviously, the adjusting assembly can also be connected to the top of the tail plate 3 in the form of an electric push rod, and the reciprocating sliding of the sliding block 2 is driven by the electric push rod. Similar simple replacement methods also fall within the protection scope of the present application.

[0056] Specifically, as shown in Figure 3 , Figure 4 and Figure 6 , a rib plate is further arranged between the outer end mounting plate and the inner end overhang plate of the support bracket 5, and the rib plate is welded at the middle position of the bottom surface of the top plate. The structural strength of the support bracket 5 is significantly increased by the addition of the rib plate.

[0057] Specifically, as shown in Figure 6 , a screw through hole 501 is formed in the inner end overhang plate of the support bracket 5, and the adjusting screw 4 is provided with an annular stop on both sides of the screw through hole 501 to prevent the axial movement of the adjusting screw 4. Moreover, the screw through hole 501 is an inverted gourd-shaped hole, the adjusting screw 4 rotates in the bottom hole of the screw through hole 501 in normal times, and the top hole diameter of the screw through hole 501 is greater than the outer diameter of the annular stop of the adjusting screw 4.

[0058] The adjusting screw 4 is erected by the support bracket 5 to realize the rotation of the adjusting screw 4, the adjusting screw 4 is threadedly connected to the driving threaded hole 301 of the tail plate 3, and the bolt head of the adjusting screw 4 is rotated to realize the reciprocating continuous sliding of the sliding block 2. The structural strength of the support bracket 5 is significantly increased by the addition of the rib plate. The screw through hole 501 is set as an inverted gourd-shaped hole to facilitate the disassembly and installation of the adjusting screw 4 on the support bracket 5.

[0059] The working process of the bearing hoisting mechanism with infinitely adjustable diameter of the embodiment is described by taking hoisting of the bearing outer ring 17 as an example. The bearing outer ring 17 is hoisted to a height of at least 5 cm above the workshop floor by using a cushion block. The bearing hoisting mechanism with infinitely adjustable diameter of the embodiment is connected to a hoist or a crane through the lifting ring 7 and is hoisted to a position concentric with the bearing outer ring 17, and the bottom plane of the bearing platform 201 is slightly lower than the bottom surface of the bearing outer ring 17 in the height direction. The operator rotates the bolt head of the adjusting screw 4 by using a wrench, the adjusting screw 4 is threadedly connected to the driving threaded hole 301, and the sliding block 2 is driven to move outward. The rotation of the adjusting screw 4 is stopped when the identification point 202 corresponding to the hoisted bearing outer ring 17 is exposed from the sliding rail groove 103. At this time, the side cushion block 6 is just pre-tightened and pressed against the inner side wall of the bearing outer ring 17. The adjustment of each adjusting screw 4 is completed one by one, the hoist or the crane is started, and the hoisting is completed.

[0060] In summary, the bearing hoisting mechanism with infinitely adjustable diameter of the utility model adopts a circular beam 1 with an outer diameter smaller than the inner diameter of the bearing to be hoisted, is clamped by an inner support, has good reliability, and is convenient for observing the in-place position of the bearing. A plurality of carrier blocks 101 are uniformly distributed on the circular beam 1, the carrier blocks 101 are solid metal blocks, and the sliding rail grooves 103 are formed in the carrier blocks 101, so that the structural strength is large. The adjusting assembly and the telescopic assembly are cooperatively arranged on the carrier block 101, the length of the front end of the telescopic assembly protruding from the outer wall of the circular beam 1 can be continuously adjusted, and bearings of different diameters can be clamped. The bearing hoisting mechanism with infinitely adjustable diameter of the utility model has continuity in the hoisting diameter variation form, and can meet the hoisting requirements of bearings of various diameters. In addition, the lifting ring hole 102 and the lifting ring 7 can be conveniently connected to other lifting devices, the lifting ring 7 is specifically a rotating lifting ring, the torsional stress on the lifting ring is reduced, and mainly tensile stress is borne. The sliding rail groove 103 is arranged as a T-shaped groove or a dovetail groove, the top of the sliding block 2 is correspondingly arranged as a T-shaped block or a dovetail block, the combination has large bending strength, and can bear the weight of the bearing to be hoisted. The side cushion block 6 is additionally arranged to abut against the inner side wall of the bearing outer ring 17, the bearing outer ring 17 can be pre-tightened and clamped, and horizontal shaking of the bearing outer ring 17 on the bearing hoisting mechanism with infinitely adjustable diameter of the embodiment is avoided. The identification point 202 is additionally arranged on the side wall of the sliding block 2, when the operator manually adjusts the adjusting assembly, the length of the sliding block 2 protruding can be adjusted with reference to the identification point 202. The supporting plate frame 5 supports the adjusting screw 4, the rotation of the adjusting screw 4 is realized, the adjusting screw 4 is threadedly connected to the driving threaded hole 301 of the tail plate 3, and the bolt head of the adjusting screw 4 can be rotated to realize the reciprocating and continuous sliding of the sliding block 2. The rib plate significantly increases the structural strength of the supporting plate frame 5. The screw through hole 501 is arranged as an inverted gourd-shaped hole, the adjusting screw 4 can be conveniently disassembled and assembled to the supporting plate frame 5.

[0061] Embodiment 2

[0062] The above embodiment 1 adopts the side pad 6 to pre-tighten and press on the inner side wall of the bearing outer ring 17 to pre-assemble the bearing outer ring 17, and the assembling force is small, and if collision occurs during hoisting, the bearing outer ring 17 may be inclined, which may cause the bearing outer ring 17 to separate from the diameter infinitely adjustable bearing hoisting mechanism of the utility model, and the bearing outer ring 17 may be overturned, and the bearing may be damaged. In severe cases, it may also cause personal injury. Therefore, the applicant improves the technical scheme of the embodiment to produce the present embodiment.

[0063] As shown in Figure 7 and Figure 8 , the diameter infinitely adjustable bearing hoisting mechanism further comprises a pressing assembly, a plurality of the pressing assemblies are circumferentially arranged on the top surface of the circular beam 1, the number of the pressing assemblies is consistent with the carrier blocks 101 and is arranged staggered, and the working end of the pressing assembly can press on the top surface of the bearing to be hoisted.

[0064] Specifically, as shown in Figure 7 and Figure 8 , the pressing assembly comprises a support table 8, a pressing rod 9, a swing arm 10 and a hand wheel screw 11. The vertically arranged support table 8 is connected to the top surface of the circular beam 1 by welding at the root, the hand wheel screw 11 is rotatably connected to the top end of the support table 8 through the through hole at the root of the swing arm 10, the swing arm 10 is connected to the pressing rod 9 through the threaded hole at the cantilever end, and the bottom end of the pressing rod 9 can contact the top surface of the bearing to be hoisted.

[0065] Obviously, the pressing assembly can also be realized by combining a rotary cylinder and a telescopic cylinder, the rotary cylinder is installed on the top surface of the circular beam 1, and the telescopic cylinder is installed on the rotary cylinder. A pressing arm is installed on the piston rod of the telescopic cylinder, which releases the bearing top surface when it is ejected and presses the bearing top surface when it is retracted. This way needs to add a gas path control on the circular beam 1, which is relatively complicated. Similar replacement methods also fall within the protection scope of the utility model.

[0066] Specifically, as shown in Figure 8 , the bottom end of the pressing rod 9 is provided with a pressing pad 901, and the pressing pad 901 is made of nylon material.

[0067] The working process of the bearing hoisting mechanism with infinitely adjustable diameter in this embodiment is still described by taking the hoisting of the bearing outer ring 17 as an example. After all the rotating adjustment of the adjusting screws 4 is completed, the personnel manually loosen the hand wheel screw 11, rotate the swing arm 10, and switch the swing arm 10 from the folded standby position to the unfolded working position. The hand wheel screw 11 is tightened to lock the swing arm 10 so that it does not swing. The pressure rod 9 is manually rotated, and the contact of the pressure pad 901 with the top surface of the bearing outer ring 17 is observed. When the pressure is sufficient, the rotation of the pressure rod 9 is stopped. Then, each of the pressure assemblies is controlled in sequence, and the adjustment is completed. The crane or the overhead traveling crane is started, and the bearing outer ring 17 is slightly lifted. If any of the pressure rods 9 is loose, it is tightened again. Then, the hoisting is completed.

[0068] In summary, by adding the pressure assemblies, the plurality of pressure assemblies and the carrier block 101 are correspondingly and staggered arranged, which can effectively press the entire circular beam 1 in the circumferential direction and avoid loosening of the bearing to be hoisted. The rotation of the swing arm 10 relative to the central axis of the hand wheel screw 11 realizes the switching of the swing arm 10 between the unfolded working position and the folded standby position. The manual rotation of the pressure rod 9 presses the top surface of the bearing, which facilitates the perception and control of the pressure by the personnel. By adding the pressure pad 901, the top surface of the bearing can be protected to avoid scratching and damage.

[0069] Embodiment 3

[0070] The utility model discloses still a kind of bearing hoisting system with infinitely adjustable diameter, as shown in Figure 9 Any one of the bearing hoisting mechanism with infinitely adjustable diameter in the above embodiment is used for bearing hoisting. The bearing hoisting system with infinitely adjustable diameter of the utility model further includes chain assembly, top beam body 15 and sling 16. The number of the chain assembly and the number of lifting points are consistent and one-to-one corresponding arrangement, and the chain assembly is vertically arranged. The top end of chain assembly is connected by lifting hole plate 151 at the bottom of top beam body 15, and the middle ear seat on the top surface of top beam body 15 is connected to sling 16 by discharging buckle, and sling 16 is connected to the lifting hook of crane or overhead traveling crane.

[0071] Specifically, the chain assembly includes lifting hook 12, spiral buckle 13, chain 14 and arc discharging buckle connected together from bottom to top. Lifting hook 12 is connected to lifting ring 7, and arc discharging buckle is connected to the lifting hole of lifting hole plate 151. Specifically, the lifting holes on lifting hole plate 151 are multiple and are arranged at equal intervals along the diameter direction, which facilitates the adaptation when replacing circular beam 1 with different diameters.

[0072] The utility model discloses a bearing hoisting system of diameter of non -polar adjustment, through the setting of roof beam body 15, roof beam body 15 horizontal setting is just above the ring beam 1, and the gravity of whole hoisting system is drawn low, makes hoisting more stable and reliable, through the setting of spiral buckle 13, the length of every group chain assembly is adjusted conveniently, makes it keep consistent. Through setting the lifting eyelet on the lifting eyelet plate 151 is multiple and along the diametric direction equidistance interval setting, it is convenient to replace the ring beam 1 of different diameter and carry out the adaptation.

[0073] The various embodiments are described in a progressive manner in the specification, and each embodiment focuses on the difference from other embodiments, and the same or similar parts between various embodiments can be referred to each other. For the device disclosed by the embodiments, since it corresponds to the method disclosed by the embodiments, the description is relatively simple, and the related parts can be referred to the method part.

[0074] The above-described embodiments only describe the preferred modes of the utility model, and do not limit the scope of the utility model. Without departing from the design spirit of the utility model, various modifications and improvements of the technical solutions of the utility model made by those skilled in the art shall fall within the protection scope determined by the claims of the utility model.

Claims

1. A stepless diameter-adjustable bearing hoisting mechanism for hoisting a bearing, characterized by, The utility model relates to a kind of bearing lifting device, including: Circular beam (1), for circular ring welding frame, the outer diameter of the circular beam (1) is less than the bearing inner diameter needing hoisting, a plurality of carriers (101) are evenly distributed on the circular beam (1) circumference, a plurality of lifting points for lifting are arranged on the top surface of the circular beam (1) circumference; Telescopic component, the bottom of the carrier (101) is provided with slide rail groove (103) along the radial direction, the telescopic component is guided and slidably connected in the slide rail groove (103), the front end of the telescopic component protruding from the outer wall of the circular beam (1) is carried under the bottom surface of the bearing needing hoisting; Adjusting component, the adjusting component is arranged on the inner side wall of the carrier (101), and the adjusting component can adjust the length of the telescopic component protruding from the circular beam (1);The adjusting component, the telescopic component and the carrier (101) are uniformly and one-to-one arranged.

2. The endless diameter-adjustable bearing hoist mechanism according to claim 1, wherein: The lifting point includes a lifting eye (102), and a plurality of lifting eyes (102) are evenly distributed on the top surface of the circular beam (1). The lifting eye (102) is threadedly connected with a lifting ring (7) for lifting.

3. The endless diameter-adjustable bearing hoist mechanism according to claim 1, wherein: The telescopic component includes a sliding block (2) and a tail plate (3). The slide rail groove (103) is a T-shaped groove or a dovetail groove. The top of the sliding block (2) is correspondingly provided with a T-shaped block or a dovetail block. The tail plate (3) is bolted to the inner end surface of the sliding block (2). The adjusting component drives the tail plate (3).

4. The endless diameter-adjustable bearing hoist mechanism according to claim 3, wherein: The front end of the sliding block (2) is provided with a bearing table (201). The bottom surface of the bearing table (201) contacts the bottom surface of a bearing outer ring (17).

5. The endless diameter-adjustable bearing hoist mechanism of claim 4, wherein: The inner side of the bearing table (201) is provided with a side pad (6) through a countersunk screw. The side pad (6) abuts against the inner side wall of the bearing outer ring (17).

6. The endless-diameter-adjustable bearing hoisting mechanism according to any one of claims 3 to 5, characterized in that The sliding block (2) is provided with a mark point (202). A plurality of mark points (202) are arranged at intervals along the length direction of the sliding block (2). Different mark points (202) correspond to bearings of different specifications needing hoisting.

7. The endless diameter-adjustable bearing hoist mechanism of claim 3, wherein: The adjusting component includes an adjusting screw (4) and a support plate rack (5). The support plate rack (5) is mounted on the inner side wall of the carrier (101) through a mounting via (502) at the root. The adjusting screw (4) is rotatably mounted on the inner side wall of the carrier (101) and the inner end drop plate of the support plate rack (5). The top of the tail plate (3) is centrally provided with a driving threaded hole (301). The screw segment of the middle part of the adjusting screw (4) is threadedly connected with the driving threaded hole (301).

8. The endless diameter-adjustable bearing hoist mechanism of claim 1, wherein: The utility model also includes a plurality of compression components, which are evenly distributed on the top surface of the circular beam (1). The number of the compression components is consistent with the carrier (101) and is staggered. The working end of the compression component can be pressed onto the top surface of the bearing needing hoisting.

9. The endless diameter-adjustable bearing hoist mechanism of claim 8, wherein: The pressing assembly comprises a support table (8), a pressing rod (9), a swing arm (10) and a hand wheel screw (11), the vertically arranged support table (8) is fixedly connected at the top surface of the circular ring beam (1), the hand wheel screw (11) is rotatably connected at the top end of the support table (8) through the swing arm (10) root hole, the swing arm (10) cantilever end threaded hole connects the pressing rod (9), and the bottom end of the pressing rod (9) can contact the top surface of the bearing to be hoisted.

10. An endless diameter-adjustable bearing hoist system characterized by: The bearing hoisting mechanism for infinitely adjusting the diameter according to any one of claims 1-9 is used for bearing hoisting, further comprising a chain assembly, a top beam body (15) and a lifting belt (16), the number of the chain assembly is consistent with and one-to-one corresponds to the number of the lifting points, the bottom of the top beam body (15) is connected with the top end of the chain assembly through a lifting hole plate (151), the middle support lug seat of the top surface of the top beam body (15) is connected with the lifting belt (16) through a shackle, and the lifting belt (16) is connected with a lifting hook of a lifting machine or a headstock.

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