Bearing rivet damage-free dismounting device

Abstract

The utility model discloses a bearing rivet damage-free dismounting device which comprises a base and a supporting rod arranged on the base, a lifting plate is arranged on the supporting rod, a supporting sleeve is detachably arranged on the lifting plate, a containing groove for containing an external bearing to be dismounted is formed in the top wall of the supporting sleeve, and the bearing to be dismounted is arranged in the containing groove. A boss used for supporting an external bearing retainer to be disassembled is arranged in the containing groove, a plurality of stripping holes used for being in one-to-one correspondence with a plurality of rivets of an external bearing to be disassembled in position are annularly formed in the boss in a penetrating mode, and a matching disc is arranged above the lifting plate. The matching disc is provided with a plurality of drill rods and a driving piece used for driving the drill rods to synchronously do axial rotation, and the supporting rod is provided with a lifting piece used for driving the matching disc to move downwards and enabling the drill rods to be in one-to-one correspondence with a plurality of rivets of an external bearing to be disassembled in position. The problem that in the prior art, a bearing is prone to being damaged due to the fact that the rivet is manually knocked and disassembled is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of non-destructive disassembly devices for bearing rivets, in particular to a non-destructive disassembly device for bearing rivets. Background Art

[0002] Bearings are usually composed of a cage, an inner ring, an outer ring and rolling elements. Some bearings have several rivets connected to the cage for easy disassembly and assembly, that is, rivets are provided between adjacent pockets of the cage. At present, the bearings need to be disassembled in bearing failure analysis. The integrity of the bearing after disassembly plays an important role in bearing failure analysis. Disassembly integrity is an important criterion for bearing failure analysis. It directly affects the subsequent appearance inspection, microscopic inspection and analysis, roundness and roughness inspection of the bearing, and appearance inspection is the most intuitive and clear basis for judging when the bearing fails. Therefore, disassembly damage to the bearing should be avoided when the bearing is disassembled. The traditional rivet removal method is usually manual removal of rivets, which is performed by knocking the rivets one by one. The disassembly efficiency of this disassembly method is low. At the same time, manual removal of rivets is very likely to cause disassembly damage to the bearing, which in turn affects the bearing failure analysis. Utility Model Content

[0003] In view of the shortcomings of the prior art, the utility model provides a bearing rivet non-damage disassembly device to solve the problem in the prior art that manual knocking to disassemble rivets easily causes disassembly damage to the bearing.

[0004] To achieve the above-mentioned purpose, the utility model provides a bearing rivet non-destructive disassembly device, including a base and a support rod arranged on the base, a lifting plate is arranged on the support rod, a support sleeve is detachably arranged on the lifting plate, a groove is formed on the top wall of the support sleeve for accommodating an external bearing to be disassembled, a boss is arranged in the groove for supporting an external bearing retainer to be disassembled, a plurality of release holes are circumferentially penetrated on the boss for corresponding to the positions of a plurality of rivets of the external bearing to be disassembled, a matching disk is arranged above the lifting plate, a plurality of drill rods and a driving member for driving the plurality of drill rods to rotate axially synchronously are arranged on the matching disk, and a lifting member is arranged on the support rod for driving the matching disk to move downward and making the plurality of drill rods correspond to the positions of a plurality of rivets of the external bearing to be disassembled one by one.

[0005] The above technical solution is beneficial in that: the operator places the bearing to be disassembled in the receiving groove and brings the bearing retainer to be disassembled into contact with the boss, so that the boss supports and butts the bearing retainer to be disassembled, and acts as a limit for the bearing retainer to be disassembled, and then the lifting member starts and drives the matching plate to move downward so that the plurality of drill rods correspond to the positions of the plurality of rivets on the bearing to be disassembled one by one, and then the driving member starts and drives the plurality of drill rods to rotate axially synchronously, at which time the lifting member gradually moves downward so that the rotating drill rod will gradually unscrew the rivet, thereby realizing that the plurality of rivets on the bearing to be disassembled are removed synchronously. Separate; the above technical solution can be used to quickly disassemble rivets and improve disassembly efficiency. At the same time, the rivets can be screwed out of the bearing by rotating the drill rod, so as to achieve damage-free disassembly of the rivets and avoid disassembly damage to the bearing, thereby avoiding affecting the bearing failure analysis; the drill rod in the above technology can be replaced according to actual disassembly needs or rivet types or targeted bolts, that is, when disassembling different types of rivets or different types of bolts, the size and shape of the drill rod can be replaced, such as opening a thread on the outer wall of the drill rod and making the radial cross-section of the drill rod circular or square, so as to better adapt to different rivet shapes.

[0006] The utility model is further provided with: a plurality of matching holes are provided on the matching disk, a plurality of the matching holes correspond to a plurality of drill rods one by one and each drill rod is movably arranged in its corresponding matching hole, a matching groove is provided on the matching disk corresponding to each matching hole position, each of the matching holes is connected to its corresponding matching groove, a matching gear is rotatably arranged in each matching groove, each of the matching gears is coaxially connected to its adjacent and corresponding drill rod, a matching cavity is hollowed out on the matching disk, a plurality of the matching grooves are connected to the matching cavity, the driving member comprises a driving gear arranged in the matching cavity and a driving motor arranged above the matching disk, the output end of the driving motor penetrates into the matching disk and is connected to the center of the driving gear, and a plurality of the matching gears are meshed with the driving gear.

[0007] The benefits of adopting the above technical solution are: in the above technology, when it is necessary to drive several drill rods to rotate synchronously, the drive motor starts its output shaft to rotate axially and drives the drive gear to rotate axially, and several matching gears are engaged with the drive gear, so that when the drive gear rotates, it drives several matching gears to rotate synchronously, and each matching gear is coaxially connected to its corresponding drill rod, thereby realizing the axial rotation of several drill rods in their corresponding matching holes, thereby realizing the synchronous rotation of several drill rods, and then realizing the rapid unscrewing and disassembly of several rivets by several drill rods, thereby improving the disassembly efficiency and disassembly accuracy.

[0008] The utility model is further configured as follows: the lifting component includes a hydraulic press arranged on a support rod, the output end of the hydraulic press is coaxially aligned with the matching disk, a support shaft is connected to the top wall of the matching disk, the support shaft is coaxially aligned with the matching disk and a slot for accommodating a driving motor is provided on the support shaft, and the output end of the hydraulic press is coaxially connected to the support shaft.

[0009] The advantages of adopting the above technical solution are as follows: in the above technology, the matching disk is driven to move by a hydraulic press to achieve alignment between the drill rod and the rivet, thereby facilitating the start of the drive motor to unscrew and disassemble the rivet through the drill rod; the slotted setting in the above technology facilitates the accommodation of the drive motor, thereby satisfying the coaxial connection between the support shaft and the matching disk.

[0010] The utility model is further provided that: the output end of the hydraulic press is threadedly connected to the support shaft.

[0011] The benefits of adopting the above technical solution are: in the above technology, the output end of the hydraulic press is threadedly connected to the support shaft to facilitate the operator to disassemble the support shaft, thereby realizing the disassembly of the entire structure of the support shaft, matching disk, drill rod and drive motor, thereby improving the disassembly efficiency. At the same time, the above disassembly and assembly method is used to facilitate the replacement of matching disks or drill rods of different diameters according to bearings of different sizes or types, or according to rivets of different sizes or types, so as to adapt to different bearings and rivets, thereby improving the disassembly and assembly range and disassembly and assembly efficiency.

[0012] The utility model is further configured as follows: a connecting shaft is arranged on the side wall of the lifting plate, and a clamp is detachably connected between the connecting shaft and the supporting rod.

[0013] The benefits of adopting the above technical solution are: in the above technology, the connecting shaft is fixed to the support rod by a hoop, and the hoop is composed of a hoop plate, a wing plate, a tie rib plate, a bolt and an inner liner. It is a fastener that holds or clamps the vertical rod. Therefore, by adjusting the bolts of the hoop, the connecting shaft can be slid along the height direction of the support rod or be tightly connected to the support rod, thereby realizing the adjustment of the height of the lifting plate relative to the base, so as to adapt to different sizes or types of fixing sleeves or provide for the insertion and dropping of differential core shafts of different lengths, thereby improving the splitting range and splitting efficiency. It is a prior art, so its specific connection method and function will not be described in detail.

[0014] The utility model further provides that: the boss is provided with a plurality of limiting grooves along its circumferential direction for matching with the outer walls of a plurality of pockets of the bearing retainer to be disassembled from the outside, and the radial cross section of the limiting groove is in the shape of an arc.

[0015] The benefits of adopting the above technical solution are: the several limit grooves in the above technology are used to adapt to the outer diameter of the retaining frame of the bearing to be disassembled from the outside, that is, the retaining frame is provided with a number of pocket portions to accommodate rollers, and the radial cross-section of the outer peripheral wall of the pocket portion is arc-shaped, and the several limit grooves are set to adapt to the several pocket portions and provide partial accommodation for the pocket portions, that is, to play a supporting and supporting role, to avoid the bearing rivet removal accuracy being affected by the shaking of the retaining frame during the disassembly process, and at the same time to avoid the bearing retaining frame moving or shaking to cause the bearing to deviate, thereby avoiding damage to the bearing by the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional view of the utility model;

[0017] Figure 2 It is a three-dimensional view of the bearing to be disassembled, the support sleeve and the matching disc in the separated state in the utility model;

[0018] Figure 3 It is a top view of the bearing to be disassembled;

[0019] Figure 4 It is a three-dimensional view of the mating state of the driving gear inside the mating plate and a plurality of mating gears in the utility model. DETAILED DESCRIPTION

[0020] The utility model provides a bearing rivet non-destructive disassembly device, comprising a base 1 and a support rod 2 arranged on the base 1, a lifting plate 21 is arranged on the support rod 2, a support sleeve 3 is detachably arranged on the lifting plate 21, a groove 31 for accommodating a bearing to be disassembled from the outside is provided on the top wall of the support sleeve 3, a boss 32 for supporting a bearing retainer to be disassembled from the outside is provided in the groove 31, a plurality of stripping holes 33 corresponding to a plurality of rivet positions of the bearing to be disassembled from the outside are circumferentially penetrated on the boss 32, a matching plate 4 is arranged above the lifting plate 21, a plurality of drill rods 11 and a plurality of rivet holes 33 are provided on the matching plate 4, and a plurality of drill rods 11 and a plurality of rivet holes 33 are provided on the matching plate 4. A driving member for driving a plurality of drill rods 11 to synchronously rotate axially, the support rod 2 is provided with a lifting member for driving the matching disk 4 to move downward and making a plurality of drill rods 11 correspond one-to-one with a plurality of rivet positions of the external bearing to be disassembled, the matching disk 4 is provided with a plurality of matching holes 41, a plurality of the matching holes 41 correspond one-to-one with a plurality of drill rods 11, and each drill rod 11 is movably arranged in its corresponding matching hole 41, a matching groove is provided on the matching disk 4 corresponding to each matching hole 41, each matching hole 41 is connected to its corresponding matching groove, a matching gear 421 is rotatably arranged in each matching groove, and each Each of the mating gears 421 is coaxially connected to the respective adjacent and corresponding drill rods 11, a mating cavity is hollowly provided on the mating disk 4, and a plurality of the mating grooves are connected to the mating cavity. The driving member includes a driving gear 46 arranged in the mating cavity and a driving motor 44 arranged above the mating disk 4, the output end of the driving motor 44 penetrates the mating disk 4 and is connected to the center of the driving gear 46, and a plurality of the mating gears 421 are meshed with the driving gear 46. The lifting member includes a hydraulic press 5 arranged on the support rod 2, and the output end of the hydraulic press 5 is coaxially aligned with the mating disk 4. A support shaft 45 is connected to the top wall, the support shaft 45 is coaxially aligned with the matching disk 4 and a slot 451 is provided on the support shaft 45 for accommodating the drive motor 44, the output end of the hydraulic press 5 is coaxially connected to the support shaft 45, the output end of the hydraulic press 5 is threadedly connected to the support shaft 45, a connecting shaft 22 is provided on the side wall of the lifting plate 21, a clamp 23 is detachably connected between the connecting shaft 22 and the support rod 2, the boss 32 is provided with a plurality of limiting grooves 321 along its circumferential direction for matching with the outer walls of a plurality of pockets of a bearing retainer to be removed from the outside, and the radial cross-section of the limiting groove 321 is in the shape of an arc.

[0021] The bearing to be disassembled described in the above technology is marked as 6 in the attached figure of the specification, and the rivet is marked as 61 in the attached figure of the specification.

[0022] The above shows and describes the basic principles and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which shall fall within the scope of the utility model to be protected. The scope of protection of the utility model shall be defined by the attached claims and their equivalents.

Claims

1. A bearing rivet non-destructive disassembly device, characterized by: It includes a base and a support rod arranged on the base, the support rod is provided with a lifting plate, the lifting plate is detachably provided with a support sleeve, the top wall of the support sleeve is provided with a groove for accommodating an external bearing to be disassembled, the groove is provided with a boss for supporting an external bearing retainer to be disassembled, the boss is circumferentially penetrated with a plurality of release holes for corresponding to a plurality of rivet positions of the external bearing to be disassembled, a matching disk is provided above the lifting plate, a plurality of drill rods and a driving member for driving the plurality of drill rods to synchronously rotate axially are provided on the matching disk, and a lifting member for driving the matching disk to move downward and making the plurality of drill rods correspond to a plurality of rivet positions of the external bearing to be disassembled one by one is provided on the support rod.

2. A bearing rivet non-destructive disassembly device according to claim 1, characterized in that: The mating disk is provided with a plurality of mating holes, and the plurality of mating holes correspond to the plurality of drill rods one by one and each drill rod is movably arranged in its corresponding mating hole. The mating disk is provided with a mating groove corresponding to each mating hole position, and each of the mating holes is connected to its corresponding mating groove, and a mating gear is rotatably arranged in each of the mating grooves, and each of the mating gears is coaxially connected to its adjacent and corresponding drill rod. The mating disk is hollowly provided with a mating cavity, and the plurality of mating grooves are connected to the mating cavity. The driving member includes a driving gear arranged in the mating cavity and a driving motor arranged above the mating disk, and the output end of the driving motor penetrates into the mating disk and is connected to the center of the driving gear, and the plurality of mating gears are meshed with the driving gear.

3. A bearing rivet non-destructive disassembly device according to claim 2, characterized in that: The lifting member includes a hydraulic press arranged on a support rod, wherein the output end of the hydraulic press is coaxially aligned with the matching disk, a support shaft is connected to the top wall of the matching disk, the support shaft is coaxially aligned with the matching disk and a slot for accommodating a driving motor is provided on the support shaft, and the output end of the hydraulic press is coaxially connected to the support shaft.

4. A bearing rivet non-destructive disassembly device according to claim 3, characterized in that: The output end of the hydraulic press is threadedly connected to the support shaft.

5. The non-destructive disassembly device for bearing rivets according to claim 1 is characterized in that: A connecting shaft is arranged on the side wall of the lifting plate, and a clamp is detachably connected between the connecting shaft and the supporting rod.

6. The device for non-destructive removal of bearing rivets according to claim 1, characterized in that: The boss is provided with a plurality of limiting grooves along its circumferential direction for matching with the outer walls of a plurality of pockets of a bearing retainer to be removed from the outside, and the radial cross section of the limiting groove is in the shape of an arc.

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