CN103639465A - Expansion shaft - Google Patents

Expansion shaft Download PDF

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Publication number
CN103639465A
CN103639465A CN201310666276.9A CN201310666276A CN103639465A CN 103639465 A CN103639465 A CN 103639465A CN 201310666276 A CN201310666276 A CN 201310666276A CN 103639465 A CN103639465 A CN 103639465A
Authority
CN
China
Prior art keywords
main body
push rod
expansion shaft
hole
cone
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.)
Pending
Application number
CN201310666276.9A
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Chinese (zh)
Inventor
张振海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TIANJIN JINWANFANG STEEL STRUCTURE CO Ltd
Original Assignee
TIANJIN JINWANFANG STEEL STRUCTURE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by TIANJIN JINWANFANG STEEL STRUCTURE CO Ltd filed Critical TIANJIN JINWANFANG STEEL STRUCTURE CO Ltd
Priority to CN201310666276.9A priority Critical patent/CN103639465A/en
Publication of CN103639465A publication Critical patent/CN103639465A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23B—TURNING; BORING
    • B23B31/00—Chucks; Expansion mandrels; Adaptations thereof for remote control
    • B23B31/40—Expansion mandrels

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Golf Clubs (AREA)

Abstract

The invention relates to an expansion shaft which comprises a cylindrical main body of the expansion shaft. The expansion shaft is characterized in that a hole in the same coaxial line of the main body is formed in the main body, an ejector rod in the same coaxial line of the hole is arranged in the hole, one end of the ejector rod is inserted into the main body, the other end of the ejector rod is connected with the end of the main body through threads, the ejector rod is provided with tapered ejection blocks, at least two radial through holes are arranged in positions, corresponding to the tapered ejection blocks, of the main body, an expansion rod is inserted into the radial through holes, and the lower end of the expansion rod presses the tapered ejection blocks in an abutted mode. The expansion shaft has the advantages of being simple in structure, convenient to use, easy to maintain and detect and low in cost.

Description

A kind of expansion shaft
Technical field
The invention belongs to mechanical part technical field, particularly relate to a kind of expansion shaft.
Background technology
Expansion shaft can be for the fixing axle sleeve of different size, with this fixing cylindrical workpieces of different size.In prior art, the most common expansion shaft is inflatable expansion shaft, this expansion shaft comprises columniform axis body, tool slotted eye on the outer peripheral face of axis body, in slotted eye, be provided with expanding block, the inside of axis body has the air bag that can inflate, utilizes aerating device to airbag aeration, the air bag of inflation ejects expanding block from slotted eye, with axle sleeve or the sleeve workpiece of this different size that is installed.
There is following drawback in the process of using in this expansion shaft: use inconvenience 1.: this expansion shaft must coordinate aerating device to use, and dependence is strong, cannot use whenever and wherever possible.2. inconvenience maintenance: expansion shaft compact conformation, sealing requirements is high, and maintenance difficulty is large, and maintenance cycle is long, and cost is high.
Summary of the invention
The present invention uses the technical problems such as inconvenience, maintenance difficult to provide a kind of simple in structure, easy to use, maintenance to detect the expansion shaft easy, cost is low for solving the existing expansion shaft existing in known technology.
The technical scheme that the present invention takes for the technical problem existing in solution known technology is: a kind of expansion shaft, the main body that comprises columniform expansion shaft, it is characterized in that: in described main body, there is the hole with main body coaxial line, in described hole, be provided with the push rod with described hole coaxial line, one end of described push rod is inserted in described main body, the other end of described push rod is connected with the end of described main body by screw thread, cone capital piece is installed on described push rod, in described main body, the position of corresponding cone capital piece is provided with at least two radial direction through hole, in described radial direction through hole, be fitted with top, lower end and press the swelling bar of described cone capital piece.
The present invention can also adopt following technical scheme:
Pocketed springs on described push rod, described push rod is provided with limiting section, and described spring is provided with between described limiting section and described main body.
Advantage and good effect that the present invention has are: 1. easy to use: this expansion shaft does not rely on external auxiliary device while using completely, can use whenever and wherever possible.2. be convenient to maintenance: this expansion shaft is mechanical type interlock structure, and the connected mode between each parts is simple, is convenient to detachable maintaining, and low cost of manufacture, is not easy to break down.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
In figure: 1, main body; 2, hole; 3, push rod; 4, cone capital piece; 5, radial direction through hole; 6, swelling bar; 7, spring.
The specific embodiment
For further understanding summary of the invention of the present invention, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, a kind of expansion shaft, the main body 1 that comprises columniform expansion shaft, in described main body 1, there is the hole 2 with main body 1 coaxial line, in described hole 2, be provided with the push rod 3 with described hole coaxial line, one end of described push rod 3 is inserted in described main body 1, the other end of described push rod 3 is connected with the end of described main body 1 by screw thread, in the present embodiment, one end of main body 1 is provided with the aperture for plug-in mounting push rod, the other end of main body 1 has the internal thread that connects push rod 3 ends, one end of push rod 3 is inserted in aperture, the other end of push rod 3 has the external screw thread equipped with above-mentioned internal thread, push rod 3 and main body 1 have the part of being convenient to rotate push rod by the top of one end of threaded engagement.Cone capital piece 4 is installed on described push rod 3, and in described main body 1, the position of corresponding cone capital piece 4 is provided with at least two radial direction through hole 5, is fitted with the swelling bar 6 that described cone capital piece 4 is pressed on top, lower end in described radial direction through hole 5.In the present embodiment, be axially evenly provided with four cone capital pieces 4 on push rod 3, the outside correspondence of each cone capital piece 4 is symmetrically arranged with two swelling bars 6.
Using method:
Rotation push rod 3, push rod 3 moves along the axis of main body 1 under the mating reaction of screw thread, and the cone capital piece 4 being located on push rod 3 moves axially, and the outer peripheral face of cone capital piece 4 ejects radial direction through hole 5 by the swelling bar 6 in radial direction through hole 5, with this, realizes the effect of swelling.Opposite spin push rod 3, swelling bar 6 shrinks.
Coaxial with the workpiece being fixed in order to guarantee the expansion shaft after swelling, on the circumferencial direction of main body, be evenly equipped with at least two swelling bars.
Pocketed springs 7 on described push rod 3, described push rod 3 is provided with limiting section, and described spring 7 is provided with between described limiting section and described main body 1.The effect of spring 7 is to make swelling bar 6 shrink smoothly.
Above-mentioned embodiment is only to functional descriptions of the present invention; not the spirit and scope of the present invention are limited; do not departing under the prerequisite of design philosophy of the present invention; various distortion and improvement that those skilled in the art make technical scheme of the present invention, within all dropping on protection scope of the present invention.

Claims (2)

1. an expansion shaft, the main body that comprises columniform expansion shaft, it is characterized in that: in described main body, there is the hole with main body coaxial line, in described hole, be provided with the push rod with described hole coaxial line, one end of described push rod is inserted in described main body, the other end of described push rod is connected with the end of described main body by screw thread, cone capital piece is installed on described push rod, in described main body, the position of corresponding cone capital piece is provided with at least two radial direction through hole, is fitted with the swelling bar that described cone capital piece is pressed on top, lower end in described radial direction through hole.
2. expansion shaft according to claim 1, is characterized in that: pocketed springs on described push rod, and described push rod is provided with limiting section, and described spring is provided with between described limiting section and described main body.
CN201310666276.9A 2013-12-09 2013-12-09 Expansion shaft Pending CN103639465A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201310666276.9A CN103639465A (en) 2013-12-09 2013-12-09 Expansion shaft

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201310666276.9A CN103639465A (en) 2013-12-09 2013-12-09 Expansion shaft

Publications (1)

Publication Number Publication Date
CN103639465A true CN103639465A (en) 2014-03-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201310666276.9A Pending CN103639465A (en) 2013-12-09 2013-12-09 Expansion shaft

Country Status (1)

Country Link
CN (1) CN103639465A (en)

Cited By (51)

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CN104625136A (en) * 2014-12-22 2015-05-20 西安航天动力机械厂 Sectioning adjustable inner stretcher
CN105363184A (en) * 2015-11-29 2016-03-02 江山显进机电科技服务有限公司 Ball pocket frame with hand grab
CN105386409A (en) * 2015-11-18 2016-03-09 浙江金筑交通建设有限公司 Grout-flow-preventing mechanism for anchor end of pre-stressed beam plate and grouting method for pre-stressed beam plate
CN105402973A (en) * 2015-11-06 2016-03-16 杭州利富豪机电设备有限公司 Fresh-keeping cabinet
CN105401361A (en) * 2015-11-19 2016-03-16 浙江康成新材料科技有限公司 Twelve-primary color slurry online color mixer
CN105396276A (en) * 2015-11-29 2016-03-16 江山显进机电科技服务有限公司 Electronic counting type bag ball frame
CN105414194A (en) * 2015-11-29 2016-03-23 江山显进机电科技服务有限公司 Rolling mill for copper pipe production
CN105478027A (en) * 2015-11-29 2016-04-13 江山显进机电科技服务有限公司 Agitator tank
CN105484529A (en) * 2015-11-23 2016-04-13 浙江工业大学义乌科学技术研究院有限公司 Revolving stage provided with elastic handrail
CN105499696A (en) * 2015-12-17 2016-04-20 新兴铸管（浙江）铜业有限公司 Shock insulation type copper rod cutting machine
CN105598642A (en) * 2016-01-19 2016-05-25 浙江风驰机械有限公司 Wheel manufacturing method and wheel welding machine
CN105619322A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Parking gear demounting tool provided with handle sleeve and used for remanufacturing of automatic transmission
CN105619320A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Oil ring reset tool provided with handle rods and used for remanufacturing of automatic transmission
CN105619325A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Torque converter turbine oil seal mounting tool with holding rod for remanufacturing of automatic gearbox
CN105619329A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Handheld type tapered roller bearing mounting tool for remanufacturing of automatic gearbox
CN105619323A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Differential disassembling tool with handlebar grips for remanufacturing of automatic gearbox
CN105619324A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Mounting tool with holding rod for oil seal with lip side for remanufacturing of automatic gearbox
CN105618910A (en) * 2016-01-26 2016-06-01 浙江沪新不锈钢制造有限公司 Multi-functional internal welding machine
CN105643075A (en) * 2016-01-26 2016-06-08 浙江沪新不锈钢制造有限公司 Plasma welding machine
CN105643560A (en) * 2016-02-19 2016-06-08 杭州腾骅汽车变速器股份有限公司 Rubber tube sleeve disassembling tool used for automatic transmission remanufacturing and provided with handle sleeves
CN105690322A (en) * 2016-02-19 2016-06-22 杭州腾骅汽车变速器股份有限公司 Transmission front assembly detachment tool which is used for remanufacturing of automatic transmission and provided with handle
CN105710831A (en) * 2016-02-19 2016-06-29 杭州腾骅汽车变速器股份有限公司 Portable tapered roller bearing race mounting tool for reproducing automatic transmission
CN105736807A (en) * 2016-03-16 2016-07-06 杭州艾诺流体控制仪表有限公司 Output-force-adjustable pneumatic diaphragm regulating valve
CN105757845A (en) * 2016-01-24 2016-07-13 余姚市苏杰电器科技有限公司 Water-cooling air-conditioner heat exchanger provided with supporting feet
CN105757829A (en) * 2016-01-24 2016-07-13 余姚市苏杰电器科技有限公司 Vibration isolation type water cooling air conditioner outdoor unit
CN105757844A (en) * 2016-01-24 2016-07-13 余姚市苏杰电器科技有限公司 Water-cooled air conditioner water treatment system
CN105865007A (en) * 2016-01-24 2016-08-17 余姚市苏杰电器科技有限公司 Heat exchanger of water-cooling air conditioner
CN106323699A (en) * 2015-11-29 2017-01-11 杭州跟策科技有限公司 Dry land gas collector
CN106321705A (en) * 2015-11-29 2017-01-11 杭州跟策科技有限公司 Rear shock absorber suspension ring
CN106334864A (en) * 2015-11-29 2017-01-18 杭州跟策科技有限公司 High-pressure cooker cover valve pipe welding machine
CN106333379A (en) * 2015-11-29 2017-01-18 杭州跟策科技有限公司 Tobacco leaf fixation machine
CN106334865A (en) * 2015-11-29 2017-01-18 杭州跟策科技有限公司 Foot rest mounting machine for hybrid tricycle
CN106334815A (en) * 2015-11-29 2017-01-18 杭州跟策科技有限公司 Drilling template with hand lever
CN106334648A (en) * 2015-11-29 2017-01-18 杭州跟策科技有限公司 Wood board paint layer forming machine
CN106369853A (en) * 2015-11-29 2017-02-01 杭州跟策科技有限公司 Shock insulation type refrigerator provided with water pan
CN106363286A (en) * 2015-11-29 2017-02-01 杭州跟策科技有限公司 Connecting machine for wardrobe connecting columns
CN106404514A (en) * 2015-11-29 2017-02-15 杭州跟策科技有限公司 Chloroform fumigating apparatus
CN107571197A (en) * 2016-02-19 2018-01-12 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with convienent type left half axle flange bearing installation tool
CN108436621A (en) * 2015-11-29 2018-08-24 杭州跟策科技有限公司 Wine cabinet stores up wine lattice sander
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CN110744073A (en) * 2019-10-21 2020-02-04 河北华丰能源科技发展有限公司 Connecting fastener and lathe
CN110976935A (en) * 2019-11-14 2020-04-10 南京信息职业技术学院 Plane spiral slide block type expansion shaft
CN112170420A (en) * 2020-09-10 2021-01-05 陈开筠 Bearing inner diameter positioning device

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CN104625136B (en) * 2014-12-22 2017-07-04 西安航天动力机械厂 A kind of adjustable inner support tool of split-type
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CN105386409A (en) * 2015-11-18 2016-03-09 浙江金筑交通建设有限公司 Grout-flow-preventing mechanism for anchor end of pre-stressed beam plate and grouting method for pre-stressed beam plate
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CN105414194A (en) * 2015-11-29 2016-03-23 江山显进机电科技服务有限公司 Rolling mill for copper pipe production
CN105499696A (en) * 2015-12-17 2016-04-20 新兴铸管（浙江）铜业有限公司 Shock insulation type copper rod cutting machine
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CN105757845A (en) * 2016-01-24 2016-07-13 余姚市苏杰电器科技有限公司 Water-cooling air-conditioner heat exchanger provided with supporting feet
CN105643075A (en) * 2016-01-26 2016-06-08 浙江沪新不锈钢制造有限公司 Plasma welding machine
CN105618910A (en) * 2016-01-26 2016-06-01 浙江沪新不锈钢制造有限公司 Multi-functional internal welding machine
CN107538427B (en) * 2016-02-19 2019-05-03 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with the differential mechanism demounting tool for being equipped with handle sleeve
CN105619329A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Handheld type tapered roller bearing mounting tool for remanufacturing of automatic gearbox
CN105690322A (en) * 2016-02-19 2016-06-22 杭州腾骅汽车变速器股份有限公司 Transmission front assembly detachment tool which is used for remanufacturing of automatic transmission and provided with handle
CN108274428A (en) * 2016-02-19 2018-07-13 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with the torque converter turbine oil sealing installation tool with holding rod
CN108297029A (en) * 2016-02-19 2018-07-20 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with convienent type taper roll bearing seat ring installation tool
CN105643560A (en) * 2016-02-19 2016-06-08 杭州腾骅汽车变速器股份有限公司 Rubber tube sleeve disassembling tool used for automatic transmission remanufacturing and provided with handle sleeves
CN107571197A (en) * 2016-02-19 2018-01-12 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with convienent type left half axle flange bearing installation tool
CN105710831A (en) * 2016-02-19 2016-06-29 杭州腾骅汽车变速器股份有限公司 Portable tapered roller bearing race mounting tool for reproducing automatic transmission
CN107538427A (en) * 2016-02-19 2018-01-05 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with the differential mechanism demounting tool provided with handle sleeve
CN108000425A (en) * 2016-02-19 2018-05-08 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with the parking gear extracting tool equipped with handle sleeve
CN105619322A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Parking gear demounting tool provided with handle sleeve and used for remanufacturing of automatic transmission
CN105619325A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Torque converter turbine oil seal mounting tool with holding rod for remanufacturing of automatic gearbox
CN105619325B (en) * 2016-02-19 2018-03-23 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with the torque converter turbine oil sealing installation tool with holding rod
CN105619324A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Mounting tool with holding rod for oil seal with lip side for remanufacturing of automatic gearbox
CN105619323A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Differential disassembling tool with handlebar grips for remanufacturing of automatic gearbox
CN105619324B (en) * 2016-02-19 2017-11-28 杭州腾骅汽车变速器股份有限公司 Automatic transmission is remanufactured with the oil sealing installation tool with lip provided with holding rod
CN105710831B (en) * 2016-02-19 2018-03-23 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with convienent type taper roll bearing seat ring installation tool
CN105619320A (en) * 2016-02-19 2016-06-01 杭州腾骅汽车变速器股份有限公司 Oil ring reset tool provided with handle rods and used for remanufacturing of automatic transmission
CN107571197B (en) * 2016-02-19 2019-05-03 江山显进机电科技服务有限公司 Automatic transmission is remanufactured with convienent type left half axle flange bearing installation tool
CN105690322B (en) * 2016-02-19 2017-11-07 盐城海特机械科技有限公司 Automatic transmission is remanufactured with disassembling tool for assemblies before the speed changer with handle
CN105736807A (en) * 2016-03-16 2016-07-06 杭州艾诺流体控制仪表有限公司 Output-force-adjustable pneumatic diaphragm regulating valve
CN105736807B (en) * 2016-03-16 2018-05-22 杭州艾诺流体控制仪表有限公司 Power output is adjustable pneumatic diaphragm control valve
CN108608352A (en) * 2018-07-09 2018-10-02 森泰英格（成都）数控刀具股份有限公司 A kind of inner propping collet
CN109722985A (en) * 2018-12-07 2019-05-07 九江职业技术学院 Function separate type Self-resetting friction rope energy-dissipating and shock-absorbing support
CN109722985B (en) * 2018-12-07 2020-07-31 九江职业技术学院 Function separation type self-resetting friction cable energy dissipation and shock absorption support
CN110744073A (en) * 2019-10-21 2020-02-04 河北华丰能源科技发展有限公司 Connecting fastener and lathe
CN110744073B (en) * 2019-10-21 2021-04-16 河北华丰能源科技发展有限公司 Connecting fastener and lathe
CN110976935A (en) * 2019-11-14 2020-04-10 南京信息职业技术学院 Plane spiral slide block type expansion shaft
CN112170420A (en) * 2020-09-10 2021-01-05 陈开筠 Bearing inner diameter positioning device

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Application publication date: 20140319