CN205950604U - Bolt mounting tool in narrow and small space - Google Patents
Bolt mounting tool in narrow and small space Download PDFInfo
- Publication number
- CN205950604U CN205950604U CN201620899954.5U CN201620899954U CN205950604U CN 205950604 U CN205950604 U CN 205950604U CN 201620899954 U CN201620899954 U CN 201620899954U CN 205950604 U CN205950604 U CN 205950604U
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- China
- Prior art keywords
- bolt
- extension bar
- installation tool
- cramping body
- counterbore
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Abstract
The utility model provides a be applicable to the bolt mounting tool in narrow and small space, this mounting tool sets up cramping body (2) in extension bar (1) one end, and set up second through -hole (23) on the lateral wall of cramping body (2), and set up jackscrew (3) in second through -hole (23), make jackscrew (3) extrusion bolt head, can prevent that the in -process that the bolt was removing from dropping from the mounting tool, along with bolt and nut are screwed gradually, the bolt is automatic to break away from out from the mounting tool, can take out mounting tool, this mounting tool can realize bolt in the narrow and small space the installation, screw up, the bolt can not take place and drop for installation safe and reliable moreover, satisfies the nuclear power and equips manufacturing requirements.
Description
Technical field
This utility model is related to bolt installation tool, particularly to a kind of instrument of installation bolt in small space.
Background technology
It is bolted fixation between the internal heat assembly of temperature gas cooled reactor steam generator and external shell, and internal
Gap very little between heat-exchanging component and external shell, and bolt installation site is apart from shell end again farther out, not only operator's limb
Body is difficult to reach bolt installation site, and various electronic, pneumatic tools more cannot use.Meanwhile, right in nuclear power equipment manufacturing
Matching requirements are high, do not allow the article outside any product itself to drop and be retained in product.
Solving such bolt installation question in prior art has two kinds, and one kind is to be avoided by changing assembling manufacturing order
Small space occurs, and the particularity of nuclear power equipment configuration leads to the bolt being often difficult to avoid that under small space to be installed；Another
Plant and manufacture specific purpose tool to realize installing.
One is disclosed in associated bolt installation tool present in prior art, such as Chinese patent CN201320860498.X
Plant for the outer-hexagonal bolt hand-operated tools in small space, it can be used for the narrow and small sky that electric and pneumatic instrument cannot work
Between to bolt or nut fastening or loosen, but using needing during this instrument in advance bolt to be placed at bolt hole, and this instrument
Itself cannot be installed grip bolt.
And for example disclose a kind of bolt installation tool in Chinese patent CN201520283349.0 and provide a kind of narrow and small sky
Between inner bolt be difficult the solution of installation question, significantly improve in terms of the old construction containing the engineerings such as transformation, tunnel reinforcement
Efficiency, but it has in work progress that absorption affinity is little to lead to bolt to drop by the way of Magnet carries out absorption fixation to bolt
Risk, and this situation resolutely refuse in nuclear power equipment manufacturing allow.
Therefore, need exploitation one kind badly to be particularly well-suited in nuclear power equipment manufacturing to use in small space, with
When being capable of reliable retention bolt it is tightened with the instrument of installation.
Utility model content
In order to solve the above problems, present inventor has performed studying with keen determination, it is found that：In extension bar 1 one end, folder is set
Hold body 2, and the second through hole 23 is opened up on the side wall of cramping body 2, and jackscrew 3 is set in the second through hole 23, so that jackscrew 3 is extruded
Bolt head, is prevented from bolt and drops from installation tool during movement, gradually screw with bolts and nuts, bolt
Automatically spin off from installation tool, you can take out described installation tool, thus completing this utility model.
The purpose of this utility model is to provide a kind of small space inner bolt installation tool it is characterised in that this instrument
The cramping body 2 including extension bar 1, being arranged at extension bar 1 one end and the jackscrew 3 being arranged on cramping body 2, wherein, in extension bar 1
One end relative with installation, offers first through hole 11 along extension bar 1 radial direction, on described cramping body 2 lower surface along it axially
Offer one or more counterbores.
Brief description
Fig. 1 illustrates structure and the use state schematic diagram of described bolt installation tool；
Fig. 2 illustrates extension bar structural representation；
Fig. 3 illustrates cramping body structural representation.
Drawing reference numeral explanation
1- extension bar
11- first through hole
2- cramping body
21- first counterbore
22- second counterbore
23- second through hole
3- jackscrew
4- bolt
5- plain washer
6- housing
7- internal heat assembly
Specific embodiment
It is described in detail below by this utility model, feature of the present utility model and advantage will be with these explanations
And become more apparent from, clearly.
Special word " exemplary " means " as example, embodiment or illustrative " here.Here as " exemplary "
Illustrated any embodiment should not necessarily be construed as preferred or advantageous over other embodiments.Although embodiment shown in the drawings is each
Kind of aspect, but unless otherwise indicated it is not necessary to accompanying drawing drawn to scale.
In description of the present utility model, it should be noted that term " on ", D score, " interior ", " outward ", "front", "rear",
The orientation of the instruction such as " left " and " right " or position relationship are based on the orientation under utility model works state or position relationship, only
It is for the ease of description this utility model and to simplify description, rather than the device of instruction or hint indication or element must have spy
Fixed orientation, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.Additionally, term " the
One ", " second ", " the 3rd " and " the 4th " is only used for describing purpose, and it is not intended that indicating or hint relative importance.
This utility model described below.
According to this utility model, provide a kind of small space inner bolt installation tool it is characterised in that this instrument includes adding
Stock 1, the cramping body 2 being arranged at extension bar 1 one end and the jackscrew 3 being arranged on cramping body 2, wherein, in extension bar 1 and installation
Relative one end, offers first through hole 11 along extension bar 1 radial direction, axially offers along it on described cramping body 2 lower surface
One or more counterbores.
In this utility model, described extension bar 1 is solid hopkinson bar or is hollow pipe.
When extension bar 1 is solid hopkinson bar, this utility model is not specially limited to the diameter of extension bar 1, can extend into
The operation space of small space, can provide required power during screwing bolts to be preferred simultaneously；When extension bar 1 is hollow pipe
When, this utility model is also not specially limited to the diameter of extension bar 1 and pipe thickness, can extend into the operation of small space
Space, can provide required power during screwing bolts to be preferably it is preferable that pipe thickness is uniform simultaneously.
In this utility model, the profile of described extension bar 1 is cylinder, Rotary-table or cuboid, preferably cylinder
Body.
The length of extension bar 1 according to bolt installation site depending on the depth in small space, preferably greater than installation site
Depth in small space.
In extension bar 1 one end relative with installation end, i.e. handheld terminal, offer first through hole 11 along extension bar 1 radial direction,
Handle can be penetrated, described handle is preferably round steel or is steel pipe, using described installation tool in described first through hole 11
When, operator apply moment on handle, are tightened bolt by the transmission of power.
The lower end of described extension bar 1, i.e. installation end, it is fixedly connected with cramping body 2 or the lower end of extension bar 1 and cramping body
It is integrally formed.
In this utility model, the mode that extension bar 1 is fixedly connected with cramping body 2 is not specially limited, and can be weldering
Connect or threaded etc., preferably threaded, so that when installing different model bolt, change and have six in different size
Angular cramping body 2.
When being to threaded between extension bar 1 and cramping body 2, described extension bar 1 carries external screw thread, and external screw thread
Rotation direction consistent with the rotation direction of screw thread on bolt to be installed so that extension bar 1 and cramping body 2 are in use with bolt
Screw and screw, it is to avoid during cramping body 2 separate with extension bar 1, come off.
In this utility model, the profile of described cramping body 2 is cuboid or is cylinder, preferably cylinder, its
One end is fixedly connected with extension bar 1, or is formed in one, and the other end axially offers first successively along it on the lower surface thereof
Counterbore 21 and the second counterbore 22, wherein,
Described first counterbore 21 is cylindrical bore, and its aperture is slightly larger than the diameter of the corresponding plain washer of bolt to be installed,
So that in installation bolt, described plain washer can be contained in the first counterbore 21.
The depth of described first counterbore 21 be less than bolt head thickness so that bolt head exist all the time a part of clip in
In second counterbore 22, and the second counterbore 22 can drive bolt to rotate, thus ensure that bolt can be completely stubborn at place to be installed
Tightly.
Described second counterbore 22 is the interior hexagon counterbore matching with the profile of bolt head.
Preferably, the depth of described second counterbore 22 is more than the thickness of the bolt head of bolt to be installed.
On the side wall of the corresponding cramping body 2 of described second counterbore 22, the radial direction along cramping body 2 offers the second through hole
23 it is preferable that the diameter of described second through hole 23 is less than the depth of the second counterbore 22.
Preferably, the inwall of described second through hole 23 is provided with screw thread.
It is provided with jackscrew 3 in described second through hole 23 it is preferable that described jackscrew 3 and described second through hole 23 are screw threads
Connect.
After the bolt head of bolt to be installed is positioned in the second counterbore 22, screw jackscrew 3, make jackscrew 3 press on bolt
The surface of head, so that producing the frictional force more than bolt self gravitation between jackscrew 3 and bolt head, and then ensures to use this peace
In small space during installation bolt, bolt will not come off from cramping body 2 holding tool, reaches the installation requirement of nuclear power generating equipment.
It is preferably carried out in mode in this utility model one kind, as shown in Figures 1 to 3, described installation tool includes extension bar 1
With cramping body 2, wherein, extension bar 1 and cramping body 2 are to be threaded connection it is preferable that screw thread specification is M8～M30.
Preferably, the externally threaded rotation direction in described extension bar 1 lower end is consistent with the rotation direction of the screw thread of bolt to be installed.
It is further preferable that the length of described extension bar 1 than installation site the depth value in small space long by 100～
400mm, such as 200mm.
Radially offer first through hole 11 in the upper end of extension bar 1, first through hole 11 can stretch into round steel
There is provided moment for described installation tool, reduce the operation easier of operator, be easy to screw bolt to be installed.
This utility model one kind preferred embodiment in, as shown in Fig. 2 the profile of cramping body 2 be cylinder, one
Being threadeded with extension bar 1 in end, offers the first counterbore 21 and the second counterbore 22 on the surface of the other end vertically successively.
First counterbore 21 is cylindrical hole, the external diameter of the corresponding plain washer of installation bolt such as its diameter is slightly larger than, its depth
Half for the bolt head thickness of bolt to be installed.
Second counterbore 22 is inner hexagonal hole, and it is matched with the bolt head of bolt to be installed, described second counterbore 22
Depth is more than the bolt head thickness of bolt to be installed.
On the side wall of the corresponding cramping body 2 of the second counterbore 22, the radial direction along cramping body 2 offers the second through hole 23,
It is provided with screw thread it is preferable that screw thread specification is M4～M8 on second through hole 23 inwall.
It is provided with jackscrew 3 in the second counterbore 22, described jackscrew 3 is threadeded with cramping body 2.
It is preferably carried out in mode in this utility model one kind, as shown in figure 1, the position of bolt to be installed is located at housing 6
The bottom of the small space and internal heat assembly 7 between, when using described installation tool, cramping body 2 is led to extension bar 1
After crossing the connection that is screwed, first corresponding for bolt to be installed plain washer is enclosed within bolt, and with binding agent, the two is bonded at
Together, then by the bolt head of bolt to be installed it is positioned in the second counterbore 22 of cramping body 2, then screw jackscrew 3, make jackscrew 3
It is squeezed on the bolt head of bolt to be installed, produce the frictional force more than or equal to bolt self gravitation to be installed, now, institute
State installation tool and clamp bolt to be installed.
Bolt to be installed is extended installation site by the hand-held extension bar of operator 1, screws in and tightens, and is tightening the mistake of bolt
In journey, the pulling force between bolts and nuts is much larger than the frictional force between jackscrew and bolt head, makes bolt progressively disengage erector
Tool, after waiting bolt to be tightened and install, bolt spins off completely from installation tool, and then can easily take out installation
Instrument.
The small space inner bolt installation tool being provided according to this utility model, has the advantages that：
(1) this installation tool, need only tighten jackscrew bolt can be fixedly clamped and be integrated, and recycle this instrument to carry out spiral shell
Bolt is installed, is tightened；
(2) operating process of whole screwing bolts is simple, convenient, and clamping is reliable, does not send out during installation bolt
Raw any bolt drop event, meets the requirement of nuclear power equipment manufacturing；
(3) this installation tool structure is simply it is easy to manufacture the installation it is adaptable in small space inner bolt；
(4) use this bolt installation tool, not only solve small space inner bolt installation question very well, and installed
Journey bolt is reliable with Tool Room attachment security, completes the installation of bolt in practice very well, to similar nuclear power generating equipment manufacture later
Provide experience.
Above in association with specific embodiment and exemplary example, this utility model is described in detail, but these have been said
Bright can not be interpreted as to restriction of the present utility model.It will be appreciated by those skilled in the art that without departing from this utility model spirit and
In the case of scope, multiple equivalencings, modification or improvement can be carried out to technical solutions of the utility model and embodiments thereof,
These each fall within the range of this utility model.Protection domain of the present utility model is defined by claims.
Claims (10)
1. a kind of small space inner bolt installation tool it is characterised in that
This installation tool includes extension bar (1), the cramping body (2) being arranged at extension bar (1) one end and is arranged on cramping body (2)
Jackscrew (3),
In extension bar (1) one end relative with installation end, radially offer first through hole (11) along extension bar (1),
Described cramping body (2) lower surface axially offers one or more counterbores along it.
2. installation tool according to claim 1 is it is characterised in that extension bar (1) is to be fixedly connected with cramping body (2)
's.
3. installation tool according to claim 2 is it is characterised in that extension bar (1) and cramping body (2) are welding or spiral shell
Stricture of vagina connects.
4. installation tool according to claim 1 carries external screw thread it is characterised in that described extension bar (1) is upper, and outward
The rotation direction of screw thread is consistent with the rotation direction of screw thread on bolt to be installed.
5. installation tool according to claim 1 it is characterised in that on described cramping body (2) lower surface along its axially according to
Secondary offer the first counterbore (21) and the second counterbore (22).
6. installation tool according to claim 5 it is characterised in that
Described first counterbore (21) is cylindrical bore, and its aperture is slightly larger than the diameter of the corresponding plain washer of bolt to be installed；With/
Or
Described second counterbore (22) is the interior hexagon counterbore matching with the profile of bolt head.
7. the installation tool according to claim 5 or 6 it is characterised in that
The depth of described first counterbore (21) is less than the thickness of bolt head；And/or
The depth of described second counterbore (22) is more than the thickness of the bolt head of bolt to be installed.
8. the installation tool according to claim 5 or 6 it is characterised in that
On the side wall of the corresponding cramping body (2) of described second counterbore (22), the radial direction along cramping body (2) offers the second through hole
(23)；And/or
It is provided with jackscrew (3) in described second through hole (23).
9. installation tool according to claim 8 is it is characterised in that the diameter of described second through hole (23) sinks less than second
The depth in hole (22)；And/or
Described jackscrew (3) is threadeded with described second through hole (23).
10. installation tool according to claim 1 is it is characterised in that the length of extension bar (1) is more than installation site narrow
Depth in little space.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620899954.5U CN205950604U (en) | 2016-08-18 | 2016-08-18 | Bolt mounting tool in narrow and small space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620899954.5U CN205950604U (en) | 2016-08-18 | 2016-08-18 | Bolt mounting tool in narrow and small space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205950604U true CN205950604U (en) | 2017-02-15 |
Family
ID=57976140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620899954.5U Active CN205950604U (en) | 2016-08-18 | 2016-08-18 | Bolt mounting tool in narrow and small space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205950604U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642242A (en) * | 2017-08-31 | 2018-01-30 | 中国建筑第六工程局有限公司 | A kind of light instrument for being used to install seal ring or sealing piece |
| CN108194727A (en) * | 2018-02-02 | 2018-06-22 | 东莞中子科学中心 | Chain type hoop for vacuum flange butt joint, mounting tool and mounting method thereof |
| CN114102112A (en) * | 2020-08-31 | 2022-03-01 | 中国航发商用航空发动机有限责任公司 | Mechanical device assembling method and mounting tool |
-
2016
- 2016-08-18 CN CN201620899954.5U patent/CN205950604U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107642242A (en) * | 2017-08-31 | 2018-01-30 | 中国建筑第六工程局有限公司 | A kind of light instrument for being used to install seal ring or sealing piece |
| CN108194727A (en) * | 2018-02-02 | 2018-06-22 | 东莞中子科学中心 | Chain type hoop for vacuum flange butt joint, mounting tool and mounting method thereof |
| CN108194727B (en) * | 2018-02-02 | 2024-01-30 | 国科中子医疗科技有限公司 | Chain clamp for vacuum flange butt joint, mounting tool and mounting method thereof |
| CN114102112A (en) * | 2020-08-31 | 2022-03-01 | 中国航发商用航空发动机有限责任公司 | Mechanical device assembling method and mounting tool |
| CN114102112B (en) * | 2020-08-31 | 2023-02-28 | 中国航发商用航空发动机有限责任公司 | Mechanical device assembling method and mounting tool |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |