Combined bearing automatic plugging device

Abstract

The invention provides a combined type automatic bearing inserting and pulling device. Comprising a lead screw, a lead screw gland, a sliding rod, a sliding rod adjusting gland, a nut, a hanging seat, a combined clamping assembly and a traction sleeve. The nut is in threaded connection with the lead screw, and a guide block is assembled on the nut; the sliding rod is used for containing the lead screw and the nut, a guide groove is formed in the sliding rod, and the guide block is assembled in the guide groove; threaded parts for connection are arranged at the two ends of the sliding rod; the lifting seat is assembled on the sliding rod and used for lifting and locking the sliding rod. The combined type clamping assembly clamps the two half bearings to form a stable combined state, is movably connected with the sliding rod and is located between the two lifting seats, a guide block on the nut is inserted into the combined type clamping assembly, and the nut is in linkage with the combined type clamping assembly; the lead screw gland is assembled at one end of the lead screw and provides axial stopping force and axial adjustment of the lead screw. The sliding rod adjusting gland is assembled at the other end of the lead screw and provides axial stopping force and axial adjustment of the sliding rod. The traction sleeve is used for pulling the sliding rod for hoisting.

Description

Technical Field

[0001] The present invention relates to a two-half bearing in the field of ships, and in particular to a combined bearing automatic plugging and unplugging device. Background Art

[0002] The assembly of large two-piece bearings and through-hull hubs on ships is limited by the inherent characteristics of the bearings, the unique construction of the hubs, and the limited space within the construction area. This has traditionally been done manually. The two bearing halves are secured with slings and manually transported to the outboard through-hull hub. They are then manually lifted and aligned using shoulder and hand support, and then pulled in using a hand winch.

[0003] However, in the process of implementing the technical solutions of the embodiments of the present application, the inventors of the present application discovered that the above technology has at least the following technical problems: This tooling method is labor-intensive, time-consuming, and inefficient. It also poses a significant quality risk of gnawing at the bearing halves and hub during insertion due to manual centering errors. Summary of the Invention

[0004] To address the shortcomings of the prior art and address the problem of mechanized installation and removal of two bearing halves, the present invention provides a combined automatic bearing insertion and removal device. This device clamps the two bearing halves using a combined clamping assembly, which slides axially along a slide rod under the action of a screw rod and nut, solving the technical problem of assembling the two bearing halves.

[0005] The solution adopted by the embodiment of this application to solve the technical problem is: A combined bearing automatic plugging and unplugging device includes a lead screw, a lead screw gland, a slide rod, a slide rod adjustment gland, a nut, a hanger, a combined clamping assembly and a traction sleeve; The lead screw is a threaded shaft used to screw in and out the two halves of the bearing; The nut is threadedly connected to the lead screw, and a guide block is mounted on the nut to limit the trajectory of the nut along the axis of the lead screw; The slide rod is used to accommodate the lead screw and nut. A guide groove is provided on the slide rod. A guide block is assembled in the guide groove to guide the two halves of the bearing when they are screwed in and out. Threaded parts are provided at both ends of the slide rod for connection. The hanging seat is a component, which is assembled on the slide bar and is used to hang and lock the slide bar; The combined clamping assembly clamps the two halves of the bearing to form a stable combined state, is movably connected to the slide rod and is located between the two hangers. The guide block on the nut is inserted into the combined clamping assembly. The nut and the combined clamping assembly are linked. When the lead screw rotates, the reaction force of the nut pulls the combined clamping assembly, pushing the two halves of the bearing to slide axially along the slide rod. The screw gland is assembled at one end of the screw and connected to the threaded portion of the slide rod. It is used to provide axial stopping force and axial adjustment of the screw when the screw is rotated axially. The slide rod adjustment gland is assembled at the other end of the lead screw and connected to the threaded portion of the slide rod. It is used to provide axial stopping force and axial adjustment of the slide rod when the lead screw is rotated axially. The traction sleeve is assembled on the outside of the slide bar adjustment cover and is used to pull the slide bar for lifting.

[0006] In order to further solve the technical problem to be solved by the embodiment of the present application, the embodiment of the present application provides a combined clamping assembly, which includes a front clamping disc, a rear clamping disc, a connecting rod and a top screw plate; A front chuck is provided at the front end of the two bearing halves, and a rear chuck is provided at the rear end of the two bearing halves. The front and rear chucks are connected to form an integral structure via a connecting rod, and the ends of the connecting rod are locked and fixed by fixing bolts. A jackscrew plate is provided on the front chuck to adjust the horizontal end faces of the two bearing halves, and the jackscrew is used to adjust the diagonal direction of the two bearing halves to tighten the two bearing halves. A stopper is provided on the front chuck, and the outer diameter of the stopper extends into the inner diameter of the two bearing halves, enabling adjustment of the end faces of the two bearing halves. Furthermore, the front chuck includes a front pressure plate, a front sleeve, a front linear bearing and a front retaining ring; A front sleeve is provided at the center of the front pressure plate, and a front linear bearing is embedded in the inner cavity of the front sleeve and assembled on the slide rod, so that the front chuck can slide along the axial direction of the slide rod; a guide hole is provided at the front end of the front sleeve, and a guide block is inserted into the guide hole through the guide groove, so that the nut pulls the front pressure plate to drive the front chuck to move; a front retaining ring is provided at the rear end of the front sleeve to limit the front linear bearing; Furthermore, the front pressure plate includes a web, a sleeve hole, a stopper, a bolt through hole and an internal threaded hole; The web is a cross structure, with a sleeve hole provided in the center of the web 1 for assembling the front sleeve; a stop is provided at the top of the web, the outer diameter of the stop is larger than the inner diameter of the two half bearings and smaller than the outer diameter of the end faces of the two half bearings, and plays a role in stopping and pushing when the two half bearings slide axially along the sliding rod; a bolt through hole and an internal threaded hole are provided on the web, the fixing bolt passes through the bolt through hole to connect to the connecting rod, and the connecting bolt passes through the bolt hole to connect to the internal threaded hole to fix the top screw plate to the front chuck.

[0007] Positive effects: The technical solutions provided in the embodiments of this application have at least the following technical effects or advantages: 1. Since the embodiment of the present application adopts a technical means in which the nut is screwed to the lead screw and housed in the sliding rod, the combined clamping assembly is assembled on the sliding rod and the guide block is inserted into the combined clamping assembly, which effectively solves the technical problem of assembling the two half bearings in the prior art. The nut and the combined clamping assembly can be linked, thereby achieving the technical effect of plugging and unplugging the two half bearings on the combined clamping assembly when the lead screw rotates.

[0008] 2. Since the embodiment of the present application adopts the technical means of sealing the two halves of the bearing by the front chuck and the rear chuck through the connecting rod, the combined clamping assembly assembled on the slide rod has the function of separable assembly, which effectively solves the technical problems of assembling the two halves of the bearing in the prior art, and further realizes the two halves of the bearing so that the bearing has all-round adjustment in the sealed state and fully mechanized automatic installation during the installation process, achieving the technical effect of effectively replacing the manual installation mode.

[0009] 3. Since the embodiment of the present application adopts a technical means in which the top screw plate is fixed to the front chuck by connecting bolts on the one hand, and is pressed against the end faces of the two half bearings by top screws on the other hand, the technical problem of assembling the two half bearings in the prior art is effectively solved, and the top screw plate can fix the two half bearings by the top screws, so that the front chuck, the rear chuck and the connecting rod form a stable combination with the two half bearings. At the same time, the parallelism and verticality of the end faces of the two half bearings are adjusted and stopped.

[0010] The invention is suitable for use as a combined bearing automatic plugging and unplugging device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0012] Figure 1 This is the southeast isometric view of this embodiment; Figure 2 This is the southwest isometric view of this embodiment; Figure 3 This is the main view of this embodiment; Figure 4 This is a southeast isometric horizontal sectional view of this embodiment; Figure 5 This is a southeast isometric vertical sectional view of this embodiment; Figure 6 This is a schematic diagram of the working state of this embodiment; Figure 7 Schematic diagram of the front pressure plate structure; Figure 8 Schematic diagram of the top screw plate structure.

[0013] In the picture: 1. Lead screw, 2. Screw gland, 21. The first prism part, 22. First threaded portion, 23. Rolling bearing I, 3. Slide bar, 31. Guide groove, 4. Slide bar to adjust the gland. 41. Second threaded portion, 42. The second prism part, 43. Rolling bearing II, 44. Third threaded portion; 5. Silk mother, 51. Guide block, 6. Hanging seat, 61. Slide, 62. Sliding bearings, 63. Hanging board, 64. Screws, 65. Retaining ring, 7. Combined clamping assembly, 71.Front chuck, 711.Front pressure plate, 7111. Belly, 7112. Shaft sleeve hole, 7113. Stop talking, 7114. Bolt through hole, 7115. Internal threaded hole, 712.Front axle sleeve, 7121. Guide hole, 713.Front linear bearing, 714.Front retaining ring, 72. Rear chuck, 721. Rear pressure plate, 722. Rear axle sleeve, 723. Rear linear bearing, 724. Rear retaining ring, 73. Connecting rod, 731.Fixing bolts, 74. Top screw plate, 741. Bolt hole, 742. Internal thread, 743. Connecting bolts, 8. Traction sleeve. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Although the embodiments of the present invention have been shown and described, it can be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the attached claims and their equivalents. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of the present invention.

[0015] As shown in the figure, a combined bearing automatic plugging and unplugging device includes a screw 1, a screw gland 2, a slide rod 3, a slide rod adjustment gland 4, a nut 5, a hanger 6, a combined clamping assembly 7 and a traction sleeve 8; The screw 1 is a threaded shaft that converts torque into axial repetitive force, providing screw-in force and pull-out force for screwing in and out of the two halves of the bearing; The nut 5 is threadedly connected to the lead screw 1 to convert the rotational motion into linear motion. A guide block 51 is mounted on the nut 5 to limit the trajectory of the nut 5 along the axis of the lead screw 1. The slide rod 3 is a cylindrical structure for accommodating the lead screw 1 and the nut 5. A guide groove 31 is provided on the slide rod 3. A guide block 51 is assembled in the guide groove 31 to guide the two halves of the bearing when they are screwed in and out. Threaded portions are provided at both ends of the slide rod 3 for connection. In this embodiment, the outer diameter coaxiality of the slide rod 3 is φ0.20 mm, the cylindricity is 0.20 mm, and the parallelism is 0.20 mm; The hanging seat 6 is a component, which is assembled on the slide bar 3 and is used to hang and lock the slide bar 3; The combined clamping assembly 7 clamps the two halves of the bearing to form a stable combined state, is movably connected to the slide rod 3 and is located between the two hangers 6. The guide block 51 on the nut 5 is inserted into the combined clamping assembly 7. The nut 5 and the combined clamping assembly 7 are linked together. When the screw 1 rotates, the reaction force of the nut 5 pulls the combined clamping assembly 7, thereby pushing the two halves of the bearing to slide axially along the slide rod 3, thereby realizing the insertion and removal of the two halves of the bearing; The screw gland 2 is assembled at one end of the screw 1 and connected to the threaded portion of the slide rod 3. It is used to provide axial stopping force and axial adjustment of the screw 1 when the screw 1 is rotated axially. The slide rod adjustment cover 4 is assembled at the other end of the lead screw 1 and connected to the threaded portion of the slide rod 3. It is used to provide axial stopping force and axial adjustment of the slide rod 3 when the lead screw 1 is rotated axially. The traction sleeve 8 is assembled on the outside of the slide bar adjustment cover 4 and is used to pull the slide bar 3 for lifting.

[0016] The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the nut 5 is threadedly connected to the screw 1 and housed in the slide rod 3, the combined clamping assembly 7 is assembled on the slide rod, and the guide block 51 is inserted into the combined clamping assembly 7, the nut 5 and the combined clamping assembly 7 can be linked. When the screw 11 rotates, the nut 5 pushes the two half bearings on the combined clamping assembly 7 to slide axially along the slide rod 3 to perform plug-in and pull-out assembly of the two half bearings.

[0017] In order to ensure the stability of the structure of this embodiment, the combined clamping assembly 7 includes a front clamping plate 71, a rear clamping plate 72, a connecting rod 73 and a top screw plate 74; A front chuck 71 is provided at the front end of the two bearing halves, and a rear chuck 72 is provided at the rear end of the two bearing halves. The front chuck 71 and the rear chuck 72 are connected to form an integral structure by a connecting rod 73, and the ends of the connecting rod 73 are locked and fixed by fixing bolts 731. A jackscrew plate 74 is provided on the front chuck 71 for horizontal adjustment of the end faces of the two bearing halves. The jackscrew is used to adjust the diagonal direction of the two bearing halves, thereby tightening the two bearing halves so that they can be adjusted synchronously with the front chuck 71 and the rear chuck 72 in the vertical and horizontal directions. A stopper 7113 is provided on the front chuck 71. The outer diameter of the stopper 7113 extends into the inner diameter of the two bearing halves, thereby enabling adjustment of the end faces of the two bearing halves. The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the front chuck 71 and the rear chuck 72 seal the two halves of the bearing through the connecting rod 73, the combined clamping assembly 7 assembled on the slide bar 3 has a separable combination function. Therefore, the two halves of the bearing enable the bearing to have all-round adjustment in the sealed state and fully mechanized automatic installation during the installation process, realizing an effective replacement for the manual installation mode.

[0018] In order to further ensure the stability of the structure of this embodiment, the front chuck 71 includes a front pressure plate 711, a front sleeve 712, a front linear bearing 713 and a front retaining ring 714; A front sleeve 712 is provided at the center of the front pressure plate 711. The inner cavity of the front sleeve 712 is inlaid with a front linear bearing 713 assembled on the slide bar 3, which is used for the front chuck 71 to slide axially along the slide bar 3; a guide hole 7121 is provided at the front end of the front sleeve 712, and the guide block 51 passes through the guide groove 31 and is inserted into the guide hole 7121, so that the nut 5 pulls the front pressure plate 711 to drive the front chuck 71 to move, thereby realizing the axial sliding of the combined clamping assembly 7 along the slide bar 3; a front retaining ring 714 is provided at the rear end of the front sleeve 712 to limit the front linear bearing 713; Furthermore, the rear chuck 72 includes a rear pressure plate 721 , a rear sleeve 722 , a rear linear bearing 723 and a rear retaining ring 724 ; The rear chuck 72 has the same structure as the front pressure plate 711 , except that the rear pressure plate 721 does not have a stop 7113 and the rear sleeve 722 does not have a guide hole 7121 . A rear sleeve 722 is provided at the center of the rear pressure plate 721. A rear linear bearing 723 is embedded in the inner cavity of the rear sleeve 722 and assembled on the slide bar 3, so that the rear chuck 72 can slide axially along the slide bar 3 along with the front chuck 71. A rear retaining ring 724 is provided on the rear sleeve 722 to limit the rear linear bearing 723. Furthermore, the top screw plate 74 is a rectangular plate with a bolt hole 741 and an internal thread 742 provided thereon. The bolt hole 741 is a long through hole used for adjusting the radial position. A connecting bolt 743 passes through the bolt hole 741 to fix the top screw plate 74 to the front chuck 71. The top screw passes through the internal thread 742 and rests against the end faces of the bearings of the two halves for horizontal adjustment. The technical solutions in the above embodiments of the present application have at least the following technical effects or advantages: Since the top screw plate 74 is fixed to the front chuck 71 by the connecting bolts 743 on the one hand, and rests on the end faces of the two half bearings through the top screws on the other hand, the top screw plate 74 can fix the two half bearings through the top screws, so that the front chuck 71, the rear chuck 72 and the connecting rod 73 form a stable combination with the two half bearings. At the same time, the parallelism and verticality of the end faces of the two half bearings can be adjusted and stopped.

[0019] In order to optimize the structure of this embodiment, the front pressure plate 711 includes a web 7111, a sleeve hole 7112, a stopper 7113, a bolt through hole 7114 and an internal threaded hole 7115; The web 7111 is a cross structure. A sleeve hole 7112 is provided in the center of the web 7111 for assembling the front sleeve 712. A stopper 7113 is provided at the top of the web 7111. The outer diameter of the stopper 7113 is larger than the inner diameter of the two half bearings and smaller than the outer diameter of the end faces of the two half bearings. When the two half bearings slide axially along the slide rod 3, it plays a role of stopping and advancing. A bolt through hole 7114 and an internal threaded hole 7115 are provided on the web 7111. A fixing bolt 731 passes through the bolt through hole 7114 to connect to the connecting rod 73. A connecting bolt 743 passes through the bolt hole 741 and is connected to the internal threaded hole 7115 to fix the top screw plate 74 to the front chuck 71. In this embodiment, the clearance between the outer diameter of the stopper 7113 in the front pressure plate 711 and the inner diameter of the two half bearings is 0.05-0.15 mm, the outer diameter coaxiality of the stopper 7113 is φ0.20 mm, and the cylindricity is 0.20 mm; In order to further optimize the structure of this embodiment, the screw gland 2 is a nut structure, including a first prism portion 21, a first threaded portion 22 and a rolling bearing I 23; A rolling bearing I 23 is embedded in the middle of the screw gland 2. One end of the screw gland 2 is provided with a first threaded portion 22 connected to the threaded portion of the slide rod 3, and the other end is provided with a first prism portion 21 for applying torque during connection.

[0020] Furthermore, the slide rod adjustment cover 4 is also a nut structure, including a second threaded portion 41, a second prism portion 42, a rolling bearing II 43 and a third threaded portion 44; A rolling bearing II 43 is embedded in the middle of the slide rod adjustment cover 4. A second threaded portion 41 is provided at one end of the slide rod adjustment cover 4 to be connected to the threaded portion of the slide rod 3, and a second prism portion 42 is provided at the other end to apply torque during connection. A third threaded portion 44 is provided on the outside of the second prism portion 42 to connect to the traction sleeve 8.

[0021] In order to further optimize the structure of this embodiment, the hanging seat 6 includes a sliding sleeve 61, a sliding bearing 62, a hanging plate 63, a screw 64 and a retaining ring 65, which has the functions of sliding, rotating, adjusting the center of gravity of the device and hanging; The sliding sleeve 61 is a bearing sleeve structure, with a sliding bearing 62 embedded in the inner cavity of the sliding sleeve 61 and assembled and limited by a retaining ring 65; a hanging plate 63 is provided on the outer wall of the sliding sleeve 61, and the hanging plate 63 has a lifting hole for lifting and transportation; a screw 64 is provided in the radial direction of the sliding sleeve 61, which can lock and stop the hanger 6 and the slide rod 3.

[0022] As a conventional technical choice, the guide block 51 is a flat key structure connected to the nut 5, wherein a keyway is provided on the nut 5 for assembling the guide block 51; the guide block 51 extends upward through the guide groove 31 on the slide rod 3, is inserted into the guide hole 7121 of the front shaft sleeve 712, and can slide along the guide groove 31; when the screw 1 rotates, a reaction stopping force is formed on the nut 5, driving the front chuck 71, the rear chuck 72 and the connecting rod 73 and the two half bearings to slide axially along the slide rod 3 to perform plugging and unplugging actions.

[0023] Preferably, the power source at one end of the lead screw 1 can be provided by a portable handheld electric or pneumatic device.

[0024] The working principle of this embodiment is as follows: By combining and fixing the front and rear chucks 71 and 72, the two halves of the bearing can be sealed, so that the two halves of the bearing can be adjusted as a whole during the centering and adjustment process. Then, by inserting the traction sleeve 8 and the slide bar 3, the two halves of the bearing can be centered and adjusted in the up, down, left, right, front, and back directions without spatial restrictions. At the same time, it has a stable and firm fixing mode and a sliding operation function. Then, through the coordinated action of the slide bar 3 and the guide block 51, under the drive of the drive device, the screw 1 provides axial propulsion and pulling force, sliding in or pulling out the two halves of the bearing along the running direction of the slide bar 3, achieving the purpose of installing the two halves of the bearing. Then, by combining and splitting, all components of the device can be removed, so that the sealing, centering, adjustment, propulsion and pulling out of the two halves of the bearing can be completed in one go and automatically. This realizes the replacement of the manual mode with the mechanized method, saving labor costs, reducing labor intensity, improving construction efficiency, and improving product quality.

[0025] The working process of this embodiment: First, the front chuck 71 and the rear chuck 72 are connected by the connecting rod 73 to form a fixed assembly for clamping the two halves of the bearing. The fixing assembly is inserted into the inner diameter of the two halves of the bearing with the rear chuck 72 without the stop 7113 as the insertion end until the two end faces are firmly attached to the two halves of the bearing. Then, the top screw plate 74 is installed, the connecting bolts 743 are tightened, and the top screws are adjusted to make the plane of the end faces of the two halves of the bearing and the plane of the two halves of the bearing assembly level. The top screws are tightened diagonally to tighten the stop nuts, so that the two halves of the bearing and the fixing assembly form a new two-halves bearing fixed assembly. Secondly, screw the screw 1 into the nut 5 and pass it through the slide rod 3. First, install and tighten the screw gland 2 to make the driving end of the screw 1 close to and fix the rolling bearing I 23. Then install the slide rod adjustment gland 4 to make the screw 1 rotate flexibly in the slide rod 3 without sticking and axial movement. Then install and tighten the traction sleeve 8 to complete the slide rod assembly. Next, the slide bar assembly is inserted into the front linear bearing 713 and the rear linear bearing 723 of the two-part bearing fixing assembly, and adjusted to the maximum stroke required for the installation of the two-part bearings; then, the guide block 51 is installed through the guide hole 7121 of the front shaft sleeve 712, and the guide groove 31 of the slide bar 3 is connected and fixed with the keyway on the nut 5 in the slide bar 3, so that the two-part bearing fixing assembly forms a radial stop when the lead screw 1 rotates and screws in axially along the slide bar 3; at the same time, it can achieve the function of changing the running direction of screwing in or out when the two-part bearing fixing assembly moves axially along the slide bar 3; Next, install the hanger 6 on the slide bar 3 and adjust it to the appropriate position. Use the hanger plate 63 to lift the slide bar assembly with the two halves of the bearing fixing assembly to the hub and fix it through the cabin. Next, adjust the slide bar 3 up and down and left and right to meet the installation clearance and position requirements, then use the traction sleeve 8 to pull and fix it in the cabin, and use the drive device to drive the rotating screw 1 to make the two half bearings slide uniformly along the axial direction of the slide bar 3 until it is installed in place; Next, make sure the bearing ends of the two halves are firmly in contact with the hub ends, remove the hanger 6, remove the screw gland 2, remove the slide bar 3 and the screw 1, remove the front chuck 71, the rear chuck 72, the top screw plate 74 and the connecting rod 73, and complete the installation of the bearings of the two halves. Finally, the order of the process of pulling out the two half bearings is reversed, and the driving device drives the screw 1 to rotate in the opposite direction to pull the two half bearings out from the hub.

[0026] Features of this embodiment: This combined bearing automatic insertion and extraction device allows for alignment and adjustment of the two bearing halves in all directions, including up, down, left, right, and forward, without spatial constraints. This eliminates the impact of spatial constraints on installation, particularly in confined spaces. The device also boasts a simple structure, easy assembly, and ease of operation, making it suitable for mechanized installation and extraction of all bearings composed of two bearing halves.

[0027] It is worth noting that the contents not described in detail in the specification belong to the existing technology known to those skilled in the art, and the model parameters of the screw 1, nut 5, rolling bearing I23, rolling bearing II43, sliding bearing 62, front linear bearing 713, rear linear bearing 723 and top screw are not specifically limited and can be determined using conventional equipment. In this technical solution, the electrical control components not mentioned are not shown in the figure because they belong to the existing technology and are not described here.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A combined bearing automatic plugging and unplugging device, characterized by: include: A lead screw (1), the lead screw (1) being a threaded shaft used for screwing in and out of the two half bearings; A nut (5), the nut (5) being threadedly connected to the lead screw (1), and a guide block (51) being mounted on the nut (5) to limit the reciprocating trajectory of the nut (5) along the axis of the lead screw (1); A slide rod (3), the slide rod (3) being used to accommodate the lead screw (1) and the nut (5), the slide rod (3) being provided with a guide groove (31), the guide block (51) being assembled in the guide groove (31) and being used for guiding the two half bearings when they are screwed in and out; threaded portions for connection are provided at both ends of the slide rod (3); A hanging seat (6), the hanging seat (6) being a component, assembled on the sliding rod (3), and used for hanging and locking the sliding rod (3); A combined clamping assembly (7), wherein the combined clamping assembly (7) clamps the two bearing halves to form a stable combined state, is movably connected to the slide bar (3) and is located between the two suspension seats (6), the guide block (51) on the nut (5) is inserted into the combined clamping assembly (7), the nut (5) and the combined clamping assembly (7) are linked, and when the lead screw (1) rotates, the reaction force of the nut (5) pulls the combined clamping assembly (7) to push the two bearing halves to slide axially along the slide bar (3); A screw gland (2), the screw gland (2) being mounted on one end of the screw (1) and connected to the threaded portion of the slide rod (3), and being used to provide an axial stop force and axial adjustment of the screw (1) when the screw (1) is screwed in along the axial direction; a slide rod adjustment cover (4), the slide rod adjustment cover (4) being mounted on the other end of the lead screw (1) and connected to the threaded portion of the slide rod (3), and being used to provide an axial stop force and axial adjustment of the slide rod (3) when the lead screw (1) is screwed in axially; and A traction sleeve (8), the traction sleeve (8) is mounted on the outside of the slide rod adjustment cover (4) and is used to traction the slide rod (3) for hoisting.

2. The combined bearing automatic plugging and unplugging device according to claim 1 is characterized in that: The combined clamping assembly (7) comprises a front clamping disc (71), a rear clamping disc (72), a connecting rod (73) and a top screw plate (74); The front chuck (71) is arranged at the front end of the two half bearings, and the rear chuck (72) is arranged at the rear end of the two half bearings; the front chuck (71) and the rear chuck (72) are connected to form an integral structure via the connecting rod (73), and both ends of the connecting rod (73) are locked and fixed by fixing bolts (731); the top screw plate (74) is arranged on the front chuck (71) for horizontal adjustment of the end faces of the two half bearings and for tightening the two half bearings by diagonal adjustment of the top screw; the front chuck (71) is arranged with a stopper (7113), and the outer diameter of the stopper (7113) extends into the inner diameter of the two half bearings, so as to adjust the end faces of the two half bearings.

3. The combined bearing automatic plugging and unplugging device according to claim 2 is characterized in that: The front chuck (71) comprises a front pressure plate (711), a front shaft sleeve (712), a front linear bearing (713) and a front retaining ring (714); The front sleeve (712) is arranged at the center of the front pressure plate (711), and the front linear bearing (713) is embedded in the inner cavity of the front sleeve (712) and assembled on the slide rod (3) for the front chuck (71) to slide axially along the slide rod (3); the guide hole (7121) is arranged at the front end of the front sleeve (712), and the guide block (51) passes through the guide groove (31) and is inserted into the guide hole (7121), so that the nut (5) pulls the front pressure plate (711) to drive the front chuck (71) to move; the front retaining ring (714) is arranged at the rear end of the front sleeve (712) to limit the front linear bearing (713); The front pressure plate (711) comprises a web (7111), a shaft sleeve hole (7112), a stopper (7113), a bolt through hole (7114) and an internal threaded hole (7115); The web (7111) is a cross structure. The sleeve hole (7112) is provided at the center of the web (7111) for assembling the front sleeve (712). The stopper (7113) is provided at the top end of the web (7111). The outer diameter of the stopper (7113) is larger than the inner diameter of the two half bearings and smaller than the outer diameter of the end faces of the two half bearings. When the two half bearings slide axially along the slide rod (3), it plays a role of stopping and pushing. The web (7111) is provided with the bolt through hole (7114) and the internal threaded hole (7115). The fixing bolt (731) passes through the bolt through hole (7114) to connect the connecting rod (73). The connecting bolt (743) passes through the bolt hole (741) to connect to the internal threaded hole (7115) to fix the top screw plate (74) to the front chuck (71).

4. The combined bearing automatic insertion and extraction device according to claim 3 is characterized in that: The rear chuck (72) comprises a rear pressure plate (721), a rear shaft sleeve (722), a rear linear bearing (723) and a rear retaining ring (724); The rear chuck (72) has the same structure as the front pressure plate (711), except that the rear pressure plate (721) does not have the stopper (7113) and the rear shaft sleeve (722) does not have the guide hole (7121); The rear shaft sleeve (722) is arranged at the center of the rear pressure plate (721), and the rear linear bearing (723) is embedded in the inner cavity of the rear shaft sleeve (722) and assembled on the slide rod (3) so that the rear chuck (72) can slide axially along the slide rod (3) along with the front chuck (71); the rear retaining ring (724) is provided on the rear shaft sleeve (722) to limit the rear linear bearing (723).

5. The combined bearing automatic plugging and unplugging device according to claim 4 is characterized in that: The top screw plate (74) is a rectangular plate, and is provided with a bolt hole (741) and an internal thread (742). The bolt hole (741) is a long through hole used to adjust the radial position. A connecting bolt (743) passes through the bolt hole (741) to fix the top screw plate (74) on the front chuck (71). The top screw passes through the internal thread (742) and rests against the end faces of the bearings of the two halves for horizontal adjustment.

6. The combined bearing automatic plugging and extraction device according to claim 5 is characterized in that: The screw gland (2) is a nut structure, comprising a first prism portion (21), a first threaded portion (22) and a rolling bearing I (23); The rolling bearing I (23) is embedded in the middle of the screw gland (2); one end of the screw gland (2) is provided with the first threaded portion (22) connected to the threaded portion of the slide rod (3); the other end is provided with the first prism portion (21) for applying torque during connection.

7. The combined bearing automatic insertion and extraction device according to claim 6 is characterized in that: The slide rod adjustment cover (4) is also a nut structure, comprising a second threaded portion (41), a second prism portion (42), a rolling bearing II (43) and a third threaded portion (44); The rolling bearing II (43) is embedded in the middle of the slide rod adjustment cover (4); one end of the slide rod adjustment cover (4) is provided with the second threaded portion (41) connected to the threaded portion of the slide rod (3); the other end is provided with the second prism portion (42) for applying torque during connection; the outer side of the second prism portion (42) is provided with the third threaded portion (44) for connecting to the traction sleeve (8).

8. The combined bearing automatic insertion and extraction device according to claim 7 is characterized in that: The hanging seat (6) comprises a sliding sleeve (61), a sliding bearing (62), a hanging plate (63), a screw (64) and a retaining ring (65), and has the functions of sliding and rotating the center of gravity of the device and hanging. The sliding sleeve (61) is a bearing sleeve structure. The sliding bearing (62) is embedded in the inner cavity of the sliding sleeve (61) and is assembled and limited by the retaining ring (65); the hanging plate (63) is arranged on the outer wall of the sliding sleeve (61), and the hanging plate (63) has a hanging hole for lifting and transportation; the screw (64) is arranged radially on the sliding sleeve (61) to lock and stop the hanging seat (6) and the sliding rod (3).

9. The combined bearing automatic insertion and extraction device according to claim 8 is characterized in that: The guide block (51) is a flat key structure connected to the nut (5), wherein the nut (5) is provided with a keyway for assembling the guide block (51); the guide block (51) extends upward through the guide groove (31) on the slide bar (3), is inserted into the guide hole (7121) of the front shaft sleeve (712), and can slide along the guide groove (31); when the screw (1) rotates, a reaction stopping force is formed on the nut (5), driving the front chuck (71), the rear chuck (72) and the connecting rod (73) and the two half bearings to slide axially along the slide bar (3) to perform plugging and pulling actions.

10. A method for automatically inserting and removing a combined bearing, using the automatic inserting and removing device for a combined bearing according to claim 9, characterized in that: The following steps are involved: Step 1, connecting the front chuck (71) and the rear chuck (72) through the connecting rod (73) to form a fixing assembly for clamping the two half bearings, wherein the fixing assembly is inserted into the inner diameter of the two half bearings with the rear chuck (72) without the stopper (7113) as the insertion end, until the two end surfaces are firmly attached to the two half bearings; then installing the top screw plate (74), tightening the connecting bolt (743), and adjusting the top screw so that the end surface plane of the two half bearings is kept horizontal with the plane of the two half bearing assembly, and tightening the top screw diagonally to tighten the stop nut, so that the two half bearings and the fixing assembly form a new two half bearing fixed assembly; Step 2, screwing the lead screw (1) into the nut (5) and passing it into the slide bar (3), first installing and tightening the lead screw gland (2) so that the drive end of the lead screw (1) is closely attached to and fixed to the rolling bearing I (23), then installing the slide bar adjustment gland (4) so ​​that the lead screw (1) can rotate flexibly in the slide bar (3) without getting stuck and without axial movement, then installing and tightening the traction sleeve (8) to complete the slide bar assembly; Step three, insert the slide bar assembly into the front linear bearing (713) and the rear linear bearing (723) of the two-part bearing fixing assembly, and adjust them to the maximum stroke required for the installation of the two-part bearings; then install the guide block (51) through the guide hole (7121) of the front shaft sleeve (712), and connect and fix them with the keyway on the nut (5) in the slide bar (3) through the guide groove (31) of the slide bar (3), so that the two-part bearing fixing assembly can form a radial stop when the lead screw (1) rotates and screws in along the axial direction of the slide bar (3); at the same time, it can achieve the function of changing the running direction of screwing in or pulling out when the two-part bearing fixing assembly moves axially along the slide bar (3); Step 4: Install the hanging seat (6) on the sliding rod (3) and adjust it to a suitable position, and hoist the sliding rod assembly with the two half-bearing fixing assemblies to the shaft hub through the hanging plate (63), and fix it through the cabin; Step 5, after adjusting the slide bar (3) up and down and left and right to meet the installation clearance and position requirements, it is towed and fixed in the cabin by the towing sleeve (8), and the lead screw (1) is driven and rotated by a driving device to make the two half bearings slide at a uniform speed along the axial direction of the slide bar (3) until it is installed in place; Step 6: The end faces of the two half bearings are in close contact with the end faces of the shaft hub, the suspension seat (6) is removed, the lead screw gland (2) is removed, the slide bar (3) and the lead screw (1) are removed, the front chuck (71), the rear chuck (72), the top screw plate (74) and the connecting rod (73) are removed, and the installation of the two half bearings is completed; In step seven, the order of the process of pulling out the two half bearings is the opposite. The driving device drives the screw (1) to rotate in the opposite direction to pull out the two half bearings from the hub.

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