CN111015592A - 8-shaped bearing dismounting device and dismounting method - Google Patents
8-shaped bearing dismounting device and dismounting method Download PDFInfo
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- CN111015592A CN111015592A CN201911159651.4A CN201911159651A CN111015592A CN 111015592 A CN111015592 A CN 111015592A CN 201911159651 A CN201911159651 A CN 201911159651A CN 111015592 A CN111015592 A CN 111015592A
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- threaded rod
- support frame
- guide sleeve
- bearing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
- B25B27/06—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races
- B25B27/062—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same inserting or withdrawing sleeves or bearing races using screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
The invention belongs to the field of mechanical product loading and unloading, and relates to a device and a method for disassembling an 8-shaped bearing, which comprises an operating handle, a support frame and two groups of threaded rod assemblies; a moving through groove is formed in the support frame along the axial direction of the support frame; the two groups of threaded rod assemblies are movably arranged in the moving through groove of the support frame in parallel, and the two groups of threaded rod assemblies can move relatively; the operating handle is arranged between the two groups of threaded rod assemblies and penetrates through the supporting frame. The invention provides a device and a method for dismounting an 8-shaped bearing, which are convenient for nondestructive dismounting of the 8-shaped bearing, convenient to use and high in reliability.
Description
Technical Field
The invention belongs to the field of mechanical product loading and unloading, relates to a sleeve pulling tool and method for bearing parts, and particularly relates to a device and a method for disassembling an 8-shaped bearing.
Background
In the product design of gear pump (or gear pump regulator integrated structure) for newly-developed aircraft engine control system, there is a new structure in the assembly structure design of a pair of bearings and shell (fig. 1), the composition includes: the bearing assembly (including the radial rubber ring groove of closure), O shape rubber seal, cylindric lock (a pair of bearing passes the pin to connect as an organic wholely) and casing (the hole is darker, no dismantlement technology structural design and installation terminal surface cloth have a plurality of fastening studs to interfere), and it is big to decompose the dismantlement degree of difficulty. For the structural design of the shell bearing, a special and mature technical device and a reliable technical method for realizing disassembly are not available.
Disclosure of Invention
In order to solve the technical problems in the prior art, the invention provides a device and a method for dismounting an 8-shaped bearing, which are convenient for nondestructive dismounting of the 8-shaped bearing, convenient to use and high in reliability.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a 8 style of calligraphy bearing dismounting device which characterized in that: the 8-shaped bearing dismounting device comprises an operating handle, a support frame and two groups of threaded rod assemblies; a moving through groove is formed in the support frame along the axial direction of the support frame; the two groups of threaded rod assemblies are movably arranged in the moving through groove of the support frame in parallel, and the two groups of threaded rod assemblies can move relatively; the operating handle is arranged between the two groups of threaded rod assemblies and penetrates through the supporting frame.
The threaded rod component comprises a threaded rod, and a force transmission nut, a compression nut, a guide sleeve, a pressing plate and a pressing block which are sequentially assembled on the threaded rod from top to bottom; an expansion ring is sleeved outside the pressing plate; the threaded rod penetrates through the support frame; the guide sleeve, the pressing plate and the threaded rod are sleeved, and the pressing block is axially limited by the lower end of the threaded rod or forms an integrated structure with the lower end of the threaded rod.
The lower surface of the support frame is provided with a through groove; the through grooves and the movable through grooves are arranged in a staggered manner; a supporting seat is arranged in the through groove; after the operating handle penetrates through the supporting frame, the end part of the operating handle abuts against the upper surface of the supporting seat.
The guide sleeve is one or more.
When the guide sleeves are multiple, the length of each guide sleeve is unequal; the outer diameter of each guide sleeve is not equal.
The pressing plate and the expansion ring are both provided with a plurality of pressing plates.
The material of the expansion ring is rubber.
A method for removing an 8-shaped bearing based on the 8-shaped bearing removing device described above, characterized in that: the method comprises the following steps:
1) according to the depth of the 8-shaped bearing, a guide sleeve with a proper length is selected, and a threaded rod, a force transmission nut, a compression nut, the guide sleeve, a pressing plate, an expansion ring and a pressing block are assembled together to form a threaded rod component; the threaded rod penetrates through the long through hole and the through groove of the support frame;
2) moving two groups of threaded rod assemblies according to the distance between the centers of two bearings of the 8-shaped bearing, respectively inserting the two groups of threaded rod assemblies into bearing holes of the two bearings, rotating a compression nut to compress a guide sleeve, and connecting the threaded rod assemblies and the bearings into a whole after an expansion ring is extruded, deformed and expanded;
3) placing the supporting seat in a through groove at the bottom of the supporting frame to form cross assembly, placing the supporting seat on a gear pump shell together to enable the supporting seat to be supported on the gear pump shell, and rotating the force transmission nut to enable the force transmission nut to be pressed at the upper end of the supporting frame;
4) the operating handle is rotated, so that the supporting seat and the supporting frame move back to back, the supporting frame force transmission nut and the supporting rod assembly drive the bearings to move upwards, and the pair of bearings are simultaneously pulled out of the product shell.
The invention has the beneficial effects that: convenient and fast's the harmless dismantlement of 8 font bearings has been realized, and convenient to use, simple structure, and part is small in quantity, and the reliability is high.
Drawings
FIG. 1 is a cross-sectional view of a prior art gear pump housing with an 8-shaped bearing;
FIG. 2 is a schematic front view of a bearing dismounting device according to a first embodiment of the present invention;
FIG. 3 is a schematic perspective view of a bearing dismounting device according to a first embodiment of the present invention;
FIG. 4 is a schematic front view of a bearing dismounting device according to a second embodiment of the present invention;
FIG. 5 is a side view schematic of the structure of FIG. 4;
FIG. 6 is a schematic top view of the structure of FIG. 5;
wherein:
11-a threaded rod; 12-an operating handle; 13-a nut; 14-a support frame; 15-a support seat; 16-a guide sleeve; 17-a platen; 18-an expansion ring; 19-briquetting;
21-a pressure bar; 22-a connecting plate; 23-step axis; 24-a two-way hinge mount; 25-a bow rack; 26-a pull rod; 27-a first nut; 28-a first gasket; 29-a second gasket; 210-a first set screw; 211-a first bushing; 212-a second bushing; 213-a third bushing; 214-a second nut; 215-fourth bushing; 216-a second set screw; 217-pin; 218-a second gasket; 219-third set screw; 220-sealing ring.
Detailed Description
Referring to fig. 2 and 3, the invention provides a 8-shaped bearing dismounting device, which comprises two groups of threaded rod assemblies, an operating handle 12, a supporting frame 14 and a supporting seat 15; each group of threaded rod components comprises a threaded rod 11, a force transmission nut, a compression nut, a guide sleeve 16, a pressing plate 17, an expansion ring 18 and a pressing block 19; a through groove is formed in the support frame 14, and the support seat 15 penetrates through the through groove, so that the support frame 14 and the support seat 15 are crossed and superposed in an upper position and a lower position; a threaded through hole is formed in the support frame 14, an external threaded rod is arranged at the front part of the operating handle 12 and is in threaded fit with the threaded through hole, the front end of the operating handle 12 can be pressed on the support seat 15, and the support frame 14 and the support seat 15 can move oppositely or reversely in the axial direction by rotating the operating handle 12; each threaded rod is sequentially provided with a force transmission nut, a compression nut, a guide sleeve 16, a pressure plate 17, an expansion ring 18 and a pressing block 19 from top to bottom; the force transmission nut and the compression nut are in threaded fit with the threaded rod, the guide sleeve 16, the pressing plate 17 and the expansion ring 18 are sleeved with the screw rod, and the pressing block 19 is axially limited by the lower end of the screw rod or forms an integrated structure with the lower end of the screw rod; the threaded rods of the two groups of threaded rod assemblies are respectively arranged in the through grooves or the long through holes in a penetrating way, and the through grooves or the long through holes are positioned between the force transmission nut and the compression nut; the pressing plates and the expansion rings are arranged at intervals; the expansion ring is made of rubber.
Referring to fig. 4, 5 and 6, another structural form of the 8-shaped bearing dismounting device provided by the invention is specifically as follows: the two-way hinge support consists of a compression bar 21, a connecting plate 22, a step shaft 23, a two-way hinge support 24, an arc-shaped frame 25, a pull rod 26, a first nut 27, a first washer 28, a second washer 29, a first set screw 210, a first bush 211, a second bush 212, a third bush 213, a second nut 214, a fourth bush 215, a second set screw 216, a pin 217, a second washer 218, a third set screw 219, a sealing ring 220 and the like. The step shaft 23 and the connecting plate 22 are fixed and connected into a whole through a hole shaft interference fit and a second set screw 216, the first bushing 211 and the connecting plate 22 are connected into a whole through a hole shaft interference fit, the second bushing 212 and the first bushing 211 are fixed and connected into a whole through a hole shaft interference fit and a first set screw 210, the third bushing 213, the fourth bushing 215 and the sealing ring 220 are sleeved on the pressure lever 21, the third bushing 213, the fourth bushing 215 and the pressure lever 21 are in clearance fit, the pressure lever 21 is connected with the third bushing 213, the fourth bushing 215 and the sealing ring 220 and the second bushing 212 through a hole shaft interference fit and a second nut 214, the pressure lever 21 and the second bushing 212 are connected into a whole, the pressure lever 21 and the second bushing 212 are in clearance fit, the third set screw 219 is screwed into a groove of the pressure lever 21 through the second bushing 212, the step shaft 23, the two-way hinge support 24 and the pull rod 26 are connected together through two pins 217, the hinge support 4 and the pins 217 are in clearance, the step shaft 23, the pull rod 26 and the pin 217 are in interference fit, the bow-shaped frame 25 is sleeved on the pull rod 26, and a certain gap is reserved between the unthreaded hole on the bow-shaped frame 25 and the screw rod of the pull rod 26.
When the device is used, the second nut 214 is loosened to enable the sealing ring 220 to be in an uncompressed state, the press rod 21, the third bushing 213, the fourth bushing 215 and the sealing ring 220 are installed into two holes of the infinity-shaped coupler, the lower end face of the first bushing 211 is supported on the upper surface of the coupler, the press rod 21 carries the third bushing 213 and the fourth bushing 215 to move upwards by tightening the second nut 214 and pulling the press rod 21, the screw 19 prevents the press rod 21 from rotating during the upward movement, the upper end face and the lower end face of the sealing ring 220 are subjected to pressure from the press rod 21, the third bushing 213 and the fourth bushing 215 and then expand outwards along the radial direction to form an interference state with the inner walls of the two holes of the infinity-shaped coupler, and a certain tightness is formed. The lower end face of the bow-shaped frame 25 is supported on the upper surface of the box part, the first nut 27 is screwed, the pull rod 26 is pulled upwards, the connecting plate 22 and the two compression rods 21 are pulled upwards together, the step shaft 23, the pull rod 26 and the bidirectional hinge support 24 can rotate around the two pins 17 at a certain angle in the pulling process, the influence of radial component force in the pulling process can be eliminated, the vertical upward direction of the pulling force acting on the step shaft 23 is ensured, and therefore the infinity-shaped coupling part is pulled out from the box part smoothly.
Claims (8)
1. The utility model provides a 8 style of calligraphy bearing dismounting device which characterized in that: the 8-shaped bearing dismounting device comprises an operating handle (12), a support frame (14) and two groups of threaded rod assemblies; a moving through groove is formed in the support frame (14) along the axial direction of the support frame (14); the two groups of threaded rod assemblies are movably arranged in a moving through groove of the support frame (14) in parallel, and the two groups of threaded rod assemblies can move relatively; the operating handle (12) is arranged between the two groups of threaded rod assemblies and penetrates through the supporting frame (14).
2. The type 8 bearing removal device of claim 1, wherein: the threaded rod component comprises a threaded rod (11), and a force transmission nut, a compression nut, a guide sleeve (16), a pressing plate (17) and a pressing block (19) which are sequentially assembled on the threaded rod (11) from top to bottom; an expansion ring (18) is sleeved outside the pressure plate (17); the threaded rod (11) penetrates through the support frame (14); the guide sleeve (16) and the pressing plate (17) are sleeved with the threaded rod (11), and the pressing block (19) is axially limited by the lower end of the threaded rod (11) or forms an integrated structure with the lower end of the threaded rod (11).
3. 8-shaped bearing dismounting device according to claim 1 or 2, characterized in that: the lower surface of the support frame (14) is provided with a through groove; the through grooves and the movable through grooves are arranged in a staggered manner; a supporting seat (15) is arranged in the through groove; after the operating handle (12) penetrates through the support frame (14), the end part of the operating handle (12) abuts against the upper surface of the supporting seat (15).
4. A type 8 bearing dismounting device according to claim 3, characterized in that: the guide sleeve (16) is one or more.
5. The type 8 bearing dismounting device of claim 4, characterized in that: when the guide sleeve (16) is a plurality of guide sleeves, the length of each guide sleeve (16) is not equal; the outer diameter of each guide sleeve (16) is non-equal.
6. 8-shaped bearing dismounting device according to claim 5, characterized in that: the number of the pressing plates (17) and the number of the expansion rings (18) are both multiple.
7. The type 8 bearing removal device of claim 6, wherein: the material of the expansion ring (18) is rubber.
8. A method for disassembling a figure 8 bearing based on a figure 8 bearing disassembling device according to any one of claims 1 to 7, wherein: the method comprises the following steps:
1) according to the depth of the 8-shaped bearing, a guide sleeve (16) with a proper length is selected, and a threaded rod (11), a force transmission nut, a compression nut, the guide sleeve (16), a pressing plate (17), an expansion ring (18) and a pressing block (19) are assembled together to form a threaded rod component; the threaded rod penetrates through the long through hole and the through groove of the support frame;
2) according to the distance between the centers of two bearings of the 8-shaped bearing, two groups of threaded rod assemblies are moved and inserted into bearing holes of the two bearings respectively, a compression nut is rotated to compress a guide sleeve (16), so that the threaded rod assemblies and the bearings are connected into a whole after an expansion ring (18) is extruded, deformed and expanded;
3) the supporting seat (15) is arranged in a through groove at the bottom of the supporting frame (14) to be in cross assembly, and then the supporting seat (15) is arranged on the gear pump shell together, so that the supporting seat (15) is supported on the gear pump shell, and the force transmission nut is rotated to press the force transmission nut on the upper end of the supporting frame (14);
4) the operating handle (12) is rotated, so that the supporting seat (15) and the supporting frame (14) move back to back, the force transmission nut of the supporting frame (14) and the supporting rod assembly drive the bearings to move upwards, and the pair of bearings are simultaneously pulled out of the product shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159651.4A CN111015592B (en) | 2019-11-22 | 2019-11-22 | 8-shaped bearing dismounting device and dismounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911159651.4A CN111015592B (en) | 2019-11-22 | 2019-11-22 | 8-shaped bearing dismounting device and dismounting method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111015592A true CN111015592A (en) | 2020-04-17 |
| CN111015592B CN111015592B (en) | 2021-04-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911159651.4A Active CN111015592B (en) | 2019-11-22 | 2019-11-22 | 8-shaped bearing dismounting device and dismounting method |
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| Country | Link |
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| CN (1) | CN111015592B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660250A (en) * | 2020-05-18 | 2020-09-15 | 吴玉玲 | Dismounting device for rolling pin of nut pair of subway vehicle door |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU562491A1 (en) * | 1975-11-12 | 1977-06-25 | Куйбышевский Филиал Производственнтехнического Объединения "Росоргтехстром" | Multiple gripping device for products with holes |
| CN2237524Y (en) * | 1995-06-29 | 1996-10-16 | 刘光华 | Device for pulling cylinder jacket |
| CN203471712U (en) * | 2013-07-31 | 2014-03-12 | 广东拓奇电力技术发展有限公司 | Self-aligning screw bearing thruster |
| CN104493782A (en) * | 2014-12-16 | 2015-04-08 | 武汉航达航空科技发展有限公司 | Expansion-sleeve-type bearing drawing device |
| CN105751153A (en) * | 2016-04-22 | 2016-07-13 | 广州飞机维修工程有限公司 | Dismounting device for double shaft sleeves of civil aircraft oil combustion part |
-
2019
- 2019-11-22 CN CN201911159651.4A patent/CN111015592B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU562491A1 (en) * | 1975-11-12 | 1977-06-25 | Куйбышевский Филиал Производственнтехнического Объединения "Росоргтехстром" | Multiple gripping device for products with holes |
| CN2237524Y (en) * | 1995-06-29 | 1996-10-16 | 刘光华 | Device for pulling cylinder jacket |
| CN203471712U (en) * | 2013-07-31 | 2014-03-12 | 广东拓奇电力技术发展有限公司 | Self-aligning screw bearing thruster |
| CN104493782A (en) * | 2014-12-16 | 2015-04-08 | 武汉航达航空科技发展有限公司 | Expansion-sleeve-type bearing drawing device |
| CN105751153A (en) * | 2016-04-22 | 2016-07-13 | 广州飞机维修工程有限公司 | Dismounting device for double shaft sleeves of civil aircraft oil combustion part |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111660250A (en) * | 2020-05-18 | 2020-09-15 | 吴玉玲 | Dismounting device for rolling pin of nut pair of subway vehicle door |
| CN111660250B (en) * | 2020-05-18 | 2021-10-01 | 台州市黄岩超骏塑模有限公司 | A device for disassembling and assembling a rolling pin of a door nut pair of a subway vehicle |
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| Publication number | Publication date |
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| CN111015592B (en) | 2021-04-30 |
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