CN103495956B - Steel cable baffle ring press fitting tool and method for axial locating - Google Patents
Steel cable baffle ring press fitting tool and method for axial locating Download PDFInfo
- Publication number
- CN103495956B CN103495956B CN201310467729.5A CN201310467729A CN103495956B CN 103495956 B CN103495956 B CN 103495956B CN 201310467729 A CN201310467729 A CN 201310467729A CN 103495956 B CN103495956 B CN 103495956B
- Authority
- CN
- China
- Prior art keywords
- supporter
- elastic spring
- circlip groove
- bore wall
- screw rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 title abstract 6
- 239000010959 steel Substances 0.000 title abstract 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 10
- 238000003825 pressing Methods 0.000 claims description 7
- 230000003287 optical effect Effects 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 229910052757 nitrogen Inorganic materials 0.000 claims description 5
- 238000009434 installation Methods 0.000 description 2
- 238000012797 qualification Methods 0.000 description 2
- 230000013011 mating Effects 0.000 description 1
Classifications
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P11/00—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for
- B23P11/02—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits
- B23P11/025—Connecting or disconnecting metal parts or objects by metal-working techniques not otherwise provided for by first expanding and then shrinking or vice versa, e.g. by using pressure fluids; by making force fits by using heat or cold
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention belongs to the technical field of part assembly, and relates to a steel cable baffle ring press fitting tool and method for axial locating. The press fitting tool comprises a first supporting body (4), a second supporting body (5) and a threaded rod (6). The first supporting body (4) and the second supporting body (5) are formed by cutting sleeve barrels, and the first supporting body (4) is of a structure which is upwards ejected through rotation of the threaded rod (6) and gradually expands relative to the second supporting body (5). According to the steel cable baffle ring press fitting tool and method for axial locating, steel cable baffle rings between fitting surfaces of bushings with the large interference magnitude and gears can be in a press fitting mode. The press fitting tool is simple in structure and high in press fitting efficiency and yield. The steel cable baffle ring press fitting tool and method for axial locating are suitable for press fitting of the steel cable baffle rings in the gear bushings, and can be popularized and applied to occasions where the sleeve barrels and shaft parts are mutually matched to transmit power and axial locating is needed.
Description
Technical field
The invention belongs to parts mounting technology field, relate generally to a kind of axial location elastic spring press mounting tool and pressing method, the occasion needing axial location when sleeve and axial workpiece cooperatively interact and transmit power can be applied to.
Background technology
When axle directly contacts with seat working surface, because running up of axle can cause wearing and tearing between axle and seat, for saving the cost changing axle or seat, with interference fit press-in lining in usually present, axle is directly contacted with lining, more resleeve after wearing and tearing.Although be interference fit between axle and lining, often there is the situation of axial float between the two, back-up ring need be installed and carry out axial location.When back-up ring is arranged on the interference fit face between axle and lining, install very difficult.The installation just more difficult realization of back-up ring between gear and lining, not only lining and gear are interference fit, and back-up ring should be stuck in bore wall circlip groove and excircle of bushing circlip groove.For completing the installation of back-up ring between gear and lining, adopt following two kinds of methods at present: method 1: be first put in the circlip groove of bore by back-up ring; Secondly with the conic sleeve press-in bore wall circlip groove side of outside diameter slightly larger than bore; Again cooled with liquid nitrogen back bush is pressed into from opposite side, conic sleeve is extruded and makes back-up ring fall into excircle of bushing circlip groove.The dynamics of the method sleeve press-in bore is wayward, dynamics is little cannot strut back-up ring, great efforts can cause sleeve can not being extruded lining locking, a people is also needed to hold up sleeve when dynamics is suitable, because the convergent force of back-up ring and sleeve self gravitation cause sleeve to squeeze when preventing from not loading lining.And the method often occurs that sleeve is extruded rear elastic spring and do not fallen situation on excircle of bushing, makes to press-fit failure.Method 2: be installed to by back-up ring after in the circlip groove of excircle of bushing and put into cooled with liquid nitrogen, fixed by gear, more cooled lining and back-up ring are pressed into bore in the lump, until retainer-ring press mounting is in bore wall circlip groove.When the method press-fits, often there is deviating from the phenomenon of circlip groove in the back-up ring in lining circlip groove, causes press-fiting failure, and when the magnitude of interference is larger, easily make the scratch of gear inwall.Above two kinds of methods press-fit qualification rate and efficiency is all very low.
Summary of the invention
Namely object of the present invention produces thus, proposes a kind of axial location elastic spring press mounting tool and pressing method.
The present invention adopts following technical proposals to complete its invention task:
A kind of axial location elastic spring press mounting tool, comprises supporter I, supporter II and screw rod; Described supporter I and supporter II are formed by sleeve cutting, described sleeve is the Step Shaft with cylindrical cavity, Step Shaft small end outside diameter is less than the interior circular diameter of elastic spring free state, Step Shaft small end length of bench is slightly larger than the distance of bore wall circlip groove to gear face, the interior circular diameter of Step Shaft is less than the interior circular diameter of lining, Step Shaft large end outside diameter 10mm more than larger than bore diameter; Before sleeve cutting, process a unthreaded hole and a screwed hole at the large end of Step Shaft, unthreaded hole and screwed hole are same center line and crossing with sleeve centerline; Sleeve cut surface is by sleeve centerline and perpendicular to the center line of unthreaded hole and screwed hole; After sleeve cutting, described unthreaded hole is positioned on supporter I, and described screwed hole is positioned on supporter II; Described screw front end is one section of step optical axis, and shaft diameter is less than the unthreaded hole diameter on supporter I, and described screw rod other end cross section is regular polygon, is convenient to use torque wrench rotary screw; In the middle part of described screw rod, screw thread can screw in the screwed hole on supporter II, and the optical axis of screw front end is inserted in the unthreaded hole of supporter I, and described supporter I is by the rotation of screw rod by upwards jack-up, the structure that relative support body II opens gradually.
Utilize above-mentioned press mounting tool to press-fit the method for axial location elastic spring, the concrete steps of described pressing method are:
(1) liquid nitrogen first lining being put into subzero 190 DEG C cools 5-10 minute;
(2) elastic spring is put into bore wall circlip groove, gear is placed into corresponding position and makes gear centre line be level, is fixed by gear;
(3) the Step Shaft small end of described press mounting tool is made, the one end along bore wall with circlip groove enters in bore, and enter into be placed into bore wall circlip groove elastic spring endoporus in, and make the lower end of supporter II be adjacent to bore wall lower end, now elastic spring lower end enters in bore wall circlip groove;
(4) torque wrench rotary screw is used, along with the screw-in of screw rod, the front end step of screw rod is by supporter I upwards jack-up, make that supporter I and supporter II are relative gradually to be opened, until supporter I contacts with bore wall with the periphery of supporter II, elastic spring is all strutted and makes circular diameter in elastic spring identical with bore diameter;
(5) cooled lining is taken out, one end of circlip groove is had by excircle of bushing to be pressed into from away from bore wall circlip groove one end, lining continues after contacting with described press mounting tool to be pressed into, until extruded by press mounting tool, and elastic spring is dropped in the cylindrical circlip groove of lining and the circlip groove of bore wall.
Axial location elastic spring press mounting tool and pressing method that the present invention proposes, can meet press-fiting of elastic spring between the lining of the large magnitude of interference and gear mating surface; Press mounting tool structure is simple, and press-fit efficiency high, qualification rate is high.The present invention is not only applicable to press-fiting of elastic spring in gear lining, can be applied to sleeve and axial workpiece yet and cooperatively interact and transmit power and need the occasion of axial location.
Accompanying drawing explanation
Fig. 1 is press mounting tool structural representation of the present invention;
Fig. 2 is for press-fiting front signal;
Fig. 3 is for press-fiting process signal;
Fig. 4 is for press-fiting rear signal.
In figure: 1, lining; 2, gear; 3, elastic spring; 4, supporter I; 5, supporter II; 6, screw rod.
Detailed description of the invention
The embodiment provided by reference to the accompanying drawings, is illustrated the present invention:
As shown in Figure 1, a kind of axial location elastic spring press mounting tool, comprises supporter I 4, supporter II 5 and screw rod 6; Described supporter I 4 and supporter II 5 are formed by sleeve cutting, described sleeve is the Step Shaft with cylindrical cavity, Step Shaft small end outside diameter is less than the interior circular diameter of elastic spring free state, Step Shaft small end length of bench is slightly larger than the distance of bore wall circlip groove to gear face, the interior circular diameter of Step Shaft is less than the interior circular diameter of lining 1, Step Shaft large end outside diameter 10mm more than larger than bore diameter; Before sleeve cutting, process a unthreaded hole and a screwed hole at the large end of Step Shaft, unthreaded hole and screwed hole are same center line and crossing with sleeve centerline; Sleeve cut surface is by sleeve centerline and perpendicular to the center line of unthreaded hole and screwed hole; After sleeve cutting, described unthreaded hole is positioned on supporter I 4, and described screwed hole is positioned on supporter II 5; Described screw rod 6 front end is one section of step optical axis, and shaft diameter is less than the unthreaded hole diameter on supporter I 4, and described screw rod 6 other end cross section is regular polygon, and in this embodiment, screw rod 6 other end cross section is orthohexagonal, is convenient to use torque wrench rotary screw; In the middle part of described screw rod, screw thread can screw in the screwed hole on supporter II 5, and the optical axis of screw front end is inserted in the unthreaded hole of supporter I 4, and described supporter I 4 is by the rotation of screw rod by upwards jack-up, the structure that relative support body II 5 opens gradually.Rotary screw, realizes moving forward and backward of supporter I 4 by the length screwing in screw rod on supporter II 5, is strutted by elastic spring.
Utilize above-mentioned press mounting tool to press-fit the method for axial location elastic spring, the concrete steps of described pressing method are:
(1) liquid nitrogen first lining 1 being put into subzero 190 DEG C cools 5-10 minute;
(2) elastic spring 3 is put into bore wall circlip groove, gear is placed into corresponding position and makes gear centre line be level, is fixed by gear 2;
(3) as shown in Figure 2, make the Step Shaft small end of described press mounting tool, the one end along bore wall with circlip groove enters in bore, and enter into be placed into bore wall circlip groove elastic spring endoporus in, and make the lower end of supporter II 5 be adjacent to bore wall lower end, now elastic spring lower end enters in bore wall circlip groove;
(4) as shown in Figure 3, with torque wrench rotary screw 6, along with the screw-in of screw rod, the front end step of screw rod is by supporter I 4 upwards jack-up, make that supporter I 4 and supporter II 5 are relative gradually to be opened, until supporter I 4 contacts with bore wall with the periphery of supporter II 5, elastic spring 3 is all strutted and makes circular diameter in elastic spring identical with bore diameter;
(5) as shown in Figure 4, take out cooled lining 1, one end of circlip groove is had by excircle of bushing to be pressed into from away from bore wall circlip groove one end, lining 1 continues after contacting with described press mounting tool to be pressed into, until extruded by press mounting tool, and elastic spring 3 is dropped in the cylindrical circlip groove of lining and the circlip groove of bore wall.
Claims (2)
1. an axial location elastic spring press mounting tool, is characterized in that: described press mounting tool includes supporter I (4), supporter II (5) and screw rod (6); Described supporter I (4) and supporter II (5) are formed by sleeve cutting, described sleeve is the Step Shaft with cylindrical cavity, Step Shaft small end outside diameter is less than the interior circular diameter of elastic spring free state, Step Shaft small end length of bench is slightly larger than the distance of bore wall circlip groove to gear face, the interior circular diameter of Step Shaft is less than the interior circular diameter of lining (1), Step Shaft large end outside diameter 10mm more than larger than bore diameter; Before sleeve cutting, process a unthreaded hole and a screwed hole at the large end of Step Shaft, described unthreaded hole and screwed hole are same center line and crossing with sleeve centerline; Sleeve cut surface is by sleeve centerline and perpendicular to the center line of unthreaded hole and screwed hole; After sleeve cutting, described unthreaded hole is positioned on supporter I (4), and described screwed hole is positioned on supporter II (5); Described screw rod (6) front end is one section of step optical axis, and shaft diameter is less than the unthreaded hole diameter on supporter I (4), and described screw rod (6) other end cross section is regular polygon, is convenient to torque wrench rotary screw (6); The screwed hole on supporter II (5) is threaded in the middle part of described screw rod, the optical axis of screw front end is inserted in the unthreaded hole of supporter I (4), described supporter I (4) is by the rotation of screw rod (6) by upwards jack-up, the structure that relative support body II (5) opens gradually.
2. utilize axial location elastic spring press mounting tool described in claim 1 to press-fit the method for elastic spring, it is characterized in that: the concrete steps of described pressing method are:
(1) liquid nitrogen first lining (1) being put into subzero 190 DEG C cools 5-10 minute;
(2) elastic spring (3) is put into bore wall circlip groove, gear (2) is placed into corresponding position and makes gear centre line be level, is fixed by gear (2);
(3) the Step Shaft small end of described press mounting tool is made, the one end along bore wall with circlip groove enters in bore, and enter into be placed into bore wall circlip groove elastic spring endoporus in, and make the lower end of supporter II (5) be adjacent to bore wall lower end, now elastic spring (3) lower end enters in bore wall circlip groove;
(4) with torque wrench rotary screw (6), along with the screw-in of screw rod, the front end step of screw rod is by supporter I (4) upwards jack-up, make that supporter I (4) is relative gradually with supporter II (5) to be opened, until supporter I (4) contacts with bore wall with the periphery of supporter II (5), elastic spring (3) is all strutted and makes circular diameter in elastic spring identical with bore diameter;
(5) cooled lining (1) is taken out, one end of circlip groove is had by excircle of bushing to be pressed into from away from bore wall circlip groove one end, continue to be pressed into after lining (1) contacts with described press mounting tool, until extruded by press mounting tool, and elastic spring (3) is made to be arranged in the cylindrical circlip groove of lining and the circlip groove of bore wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467729.5A CN103495956B (en) | 2013-10-10 | 2013-10-10 | Steel cable baffle ring press fitting tool and method for axial locating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310467729.5A CN103495956B (en) | 2013-10-10 | 2013-10-10 | Steel cable baffle ring press fitting tool and method for axial locating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103495956A CN103495956A (en) | 2014-01-08 |
| CN103495956B true CN103495956B (en) | 2015-04-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310467729.5A Expired - Fee Related CN103495956B (en) | 2013-10-10 | 2013-10-10 | Steel cable baffle ring press fitting tool and method for axial locating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103495956B (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104440786B (en) * | 2014-12-12 | 2016-08-10 | 莱芜钢铁集团有限公司 | A kind of shaft end ring charging apparatus and using method thereof |
| CN105904406B (en) * | 2016-06-30 | 2017-12-22 | 国营第六一六厂 | Bushing press-mounting method based on high intensity spinning bushing precision press-loading apparatus |
| CN108857338B (en) * | 2018-07-19 | 2023-06-27 | 浙江亚太机电股份有限公司 | ABS solenoid valve body retaining ring pressure equipment device |
| CN109571353A (en) * | 2018-12-10 | 2019-04-05 | 湘电重型装备有限公司 | A kind of large-tonnage heavy duty dumper planetary gear heating jacket tooling |
| CN114370449A (en) * | 2021-12-24 | 2022-04-19 | 严永存 | Thrust washer |
| CN114294071B (en) * | 2022-01-08 | 2022-11-18 | 湖南机油泵股份有限公司 | Full variable displacement oil pump of commercial car |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19631844C2 (en) * | 1996-08-07 | 2001-08-16 | Bayerische Motoren Werke Ag | Device for inserting a slotted elastic locking ring into an annular groove of a workpiece |
| CN102562821A (en) * | 2012-02-29 | 2012-07-11 | 杨丽萍 | Split combined retainer ring used on inner side of bearing outer ring |
| CN202528137U (en) * | 2012-05-03 | 2012-11-14 | 兰州威立雅水务(集团)有限责任公司 | Circlip for shaft mounting tool |
| CN202640253U (en) * | 2012-04-19 | 2013-01-02 | 西安正麒电气有限公司 | Tool for assembling elastic baffle ring for shaft |
| CN202742333U (en) * | 2012-08-22 | 2013-02-20 | 浙江科力车辆控制***有限公司 | Hand shank vertical compression type tool capable of assembling opening retaining ring |
| CN203579539U (en) * | 2013-10-10 | 2014-05-07 | 河南柴油机重工有限责任公司 | Steel cable baffle ring press fitting tool for axial locating |
-
2013
- 2013-10-10 CN CN201310467729.5A patent/CN103495956B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19631844C2 (en) * | 1996-08-07 | 2001-08-16 | Bayerische Motoren Werke Ag | Device for inserting a slotted elastic locking ring into an annular groove of a workpiece |
| CN102562821A (en) * | 2012-02-29 | 2012-07-11 | 杨丽萍 | Split combined retainer ring used on inner side of bearing outer ring |
| CN202640253U (en) * | 2012-04-19 | 2013-01-02 | 西安正麒电气有限公司 | Tool for assembling elastic baffle ring for shaft |
| CN202528137U (en) * | 2012-05-03 | 2012-11-14 | 兰州威立雅水务(集团)有限责任公司 | Circlip for shaft mounting tool |
| CN202742333U (en) * | 2012-08-22 | 2013-02-20 | 浙江科力车辆控制***有限公司 | Hand shank vertical compression type tool capable of assembling opening retaining ring |
| CN203579539U (en) * | 2013-10-10 | 2014-05-07 | 河南柴油机重工有限责任公司 | Steel cable baffle ring press fitting tool for axial locating |
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| Publication number | Publication date |
|---|---|
| CN103495956A (en) | 2014-01-08 |
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Granted publication date: 20150408 |
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| CF01 | Termination of patent right due to non-payment of annual fee |