CN205021137U - Double -stage bolt stretching device - Google Patents
Double -stage bolt stretching device Download PDFInfo
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- CN205021137U CN205021137U CN201520705130.5U CN201520705130U CN205021137U CN 205021137 U CN205021137 U CN 205021137U CN 201520705130 U CN201520705130 U CN 201520705130U CN 205021137 U CN205021137 U CN 205021137U
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- cylinder body
- piston
- described cylinder
- nut
- twin
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- 238000009434 installation Methods 0.000 claims abstract description 4
- 239000003921 oil Substances 0.000 claims description 8
- 239000010720 hydraulic oil Substances 0.000 claims description 5
- 210000003462 vein Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 description 4
- 238000012423 maintenance Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
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Abstract
The utility model discloses a double -stage bolt stretching device, including the support, arrange in the inside pull rod of support, with support fixed mounting's cylinder body no. 1, with a cylinder body fixed mounting's cylinder body no. 2 and with two fixed mounting's of cylinder body cylinder cap, cylinder body no. 1 and two inside sealed piston no. 1 and the pistons no. 2 of being provided with respectively of cylinder body, piston no. 1 and two contact cooperations in the piston, the cooperation of piston no. 2 center is provided with the nut, the nut with pull rod fixed mounting, the nut upper surface with the fixed reset spring that is provided with between the cylinder cap, the pull rod passes piston no. 1 and piston no. 2, and the cooperation is installed on the nut, the pull rod tip is provided with the bolt interface, cylinder body no. 1 is gone up the installation with cylinder body no. 2 and is provided with the oil circuit subassembly to switch -on oil circuit pipeline, the fixed gear train that is provided with the series connection on the support, the one end gear of gear train is fixed on the support, the fixed spanner axle that is provided with of the other end.
Description
Technical field
The utility model relates to bolt clamp device technical field, specifically, relates to a kind of twin-stage bolt tensioning jack.
Background technology
At present, in some heavy duty work processes, especially during aerial work, need in bolt installation process to reach necessary requirement by manpower fastening bolt, therefore cause labour intensity too much, efficiency is low.And also moment inequality can be there is in fastener cycle, cause the fastening effect of bolt well not play, cause installation quality lower, also increase maintenance number of times and maintenance difficulty simultaneously.
So, develop a kind of laborsaving and uniform bolt clamp device of moment, just become the problem that insider needs solution badly.
Utility model content
For the above-mentioned technical problem in correlation technique, the utility model proposes a kind of twin-stage bolt tensioning jack, can laborsaving and fastening time moment evenly, accurately, reduce labour intensity.
For realizing above-mentioned technical purpose, the technical solution of the utility model is achieved in that
A kind of twin-stage bolt tensioning jack, comprise bearing, be placed in the pull bar of described bearing inside, with the hard-wired cylinder body of described bearing one, with the hard-wired cylinder body of described cylinder body one two and with the hard-wired cylinder cap of described cylinder body two, wherein:
Described cylinder body one seals respectively with described cylinder body two inside and is provided with piston one and piston two, and described piston one contacts cooperation with piston two;
Described piston two center is equipped with nut, and described nut and described pull bar fixedly mount;
Back-moving spring is fixedly installed between described nut upper surface and described cylinder cap;
Described pull bar, through described piston one and piston two, coordinates and is arranged on described nut;
Described tie rod end is provided with bolt interface;
Described cylinder body one and cylinder body two are installed and is provided with oil circuit assembly, and connect oil line pipe;
Described bearing is fixedly installed the gear train of series connection, one end gear of described gear train is fixed on bearing, and the other end is fixedly installed wrench shaft.
Further, described bearing is fixedly connected with by jackscrew with described cylinder body one.
Further, described piston one and the center of piston two are respectively arranged with the hole coordinated with described pull bar.
Further, described pull bar upper end is provided with the external screw thread with described nut screw connection.
Further, described cylinder body one is provided with the external screw thread be fixedly connected with described cylinder body two, described cylinder body two is equipped with internal thread.
Further, described cylinder body two is provided with the external screw thread be fixedly connected with described cylinder cap, described cylinder cap is equipped with internal thread.
Further, between described cylinder body one inside and described piston one, between described cylinder body two inside and described piston two, all there is hydraulic oil.
Further, the outer surface of described cylinder body one, described cylinder body two and described cylinder cap is all provided with anti-slip veins.
The beneficial effects of the utility model: when fastening bolt, hydraulic oil enters cylinder body, and pushing drawing rod is hold-down bolt upwards, by rotating lever fastening bolt, easy to use, raise the efficiency, reduce labour intensity, fastening torque of bolt is even, accurately, greatly improve installation and repairing quality, shorten the time between overhauls(TBO), increase work efficiency and fall, convenient and practical.
Accompanying drawing explanation
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the sectional view of the twin-stage bolt tensioning jack according to the utility model embodiment;
Fig. 2 is the structural representation of the twin-stage bolt tensioning jack according to the utility model embodiment.
In figure:
1, bearing; 2, cylinder body one; 3, piston one; 4, nut; 5, back-moving spring; 6, cylinder cap; 7, oil circuit assembly; 8, wrench shaft; 9, gear; 10, pull bar; 11, cylinder body two; 12, piston two; 13, bolt interface.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skill in the art obtain, all belongs to the scope of the utility model protection.
As depicted in figs. 1 and 2, a kind of twin-stage bolt tensioning jack according to the utility model embodiment, comprise bearing 1, be placed in the pull bar 10 of described bearing 1 inside, with the hard-wired cylinder body of described bearing 11, with the hard-wired cylinder body of described cylinder body 12 11 and cylinder cap 6 hard-wired with described cylinder body 2 11, described cylinder body 1 seals respectively with described cylinder body 2 11 inside and is provided with piston 1 and piston 2 12, and described piston 1 contacts cooperation with piston 2 12; Described piston 2 12 center is equipped with nut 4, and described nut 4 fixedly mounts with described pull bar 10; Back-moving spring 5 is fixedly installed between described nut 4 upper surface and described cylinder cap 6; Described pull bar 10, through described piston 1, piston 2 12, coordinates and is arranged on described nut 4; Described pull bar 10 end is provided with bolt interface 13; Described cylinder body 1 and cylinder body 2 11 are installed and is provided with oil circuit assembly 7, and connect oil line pipe respectively; Described bearing is fixedly installed the gear train 9 of series connection, one end gear of described gear train is fixed on bearing 1, and the other end is fixedly installed wrench shaft 8.
In one embodiment, described bearing 1 is fixedly connected with by jackscrew with described cylinder body 1.
In one embodiment, described piston 1 and the center of piston 2 12 are respectively arranged with the hole coordinated with described pull bar 10.
In one embodiment, described pull bar 10 upper end is provided with the external screw thread coordinated with described nut 4.
In one embodiment, described cylinder body 1 is provided with the external screw thread be fixedly connected with described cylinder body 2 11, described cylinder body 2 11 is equipped with internal thread.
In one embodiment, described cylinder body 2 11 is provided with the external screw thread be fixedly connected with described cylinder cap 6, described cylinder cap 6 is equipped with internal thread.
In one embodiment, between described cylinder body 1 inside and described piston 1, between described cylinder body 2 11 inside and described piston 2 12, all there is hydraulic oil.
In one embodiment, the outer surface of described cylinder body 1, described cylinder body 2 11 and described cylinder cap 6 is all provided with anti-slip veins.
Conveniently understand technique scheme of the present utility model, below by way of in concrete occupation mode, technique scheme of the present utility model is described in detail.
When specifically using, twin-stage bolt tensioning jack seat is entered (bearing 1 internal gear 9 coordinates with locking nut six side) on the screw bolt and nut that will lock, bolt interface 13 place on itself and pull bar is screwed, start stretcher dedicated pump, when pressurizeing, hydraulic oil enters in cylinder body 1 and cylinder body 2 11 by oil circuit assembly 7, promotion piston 1 and piston 2 12 move upward respectively, and promote nut 4 and move upward together with pull bar 10, move distance is less than 10mm, is strained by bolt.Then by wrench shaft driven gear group, drive locking nut to rotate, reach bolt, nut check.After decompression, back-moving spring makes nut 4, piston 1, piston 2 12 and pull bar 10 reset.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection domain of the present utility model.
Claims (8)
1. a twin-stage bolt tensioning jack, it is characterized in that, comprise bearing (1), be placed in the inner pull bar (10) of described bearing (1), with described bearing (1) hard-wired cylinder body one (2), with the hard-wired cylinder body of described cylinder body one (2) two (11) and with the hard-wired cylinder cap of described cylinder body two (11) (6), wherein:
Described cylinder body one (2) seals respectively with described cylinder body two (11) inside and is provided with piston one (3) and piston two (12), and described piston one (3) contacts cooperation with piston two (12);
Described piston two (12) center is equipped with nut (4), and described nut (4) and described pull bar (10) fixedly mount;
Back-moving spring (5) is fixedly installed between described nut (4) upper surface and described cylinder cap (6);
Described pull bar (10), through described piston one (3) and piston two (12), coordinates and is arranged on described nut (4);
Described pull bar (10) end is provided with bolt interface (13);
Described cylinder body one (2) is provided with oil circuit assembly (7) with the upper installation of cylinder body two (11), and connects oil line pipe respectively;
Described bearing is fixedly installed the gear train (9) of series connection, one end gear of described gear train is fixed on bearing (1), and the other end is fixedly installed wrench shaft (8).
2. twin-stage bolt tensioning jack according to claim 1, is characterized in that, described bearing (1) is fixedly connected with by jackscrew with described cylinder body one (2).
3. twin-stage bolt tensioning jack according to claim 1, is characterized in that, described piston one (3) and the center of piston two (12) are respectively arranged with the hole coordinated with described pull bar (10).
4. twin-stage bolt tensioning jack according to claim 1, is characterized in that, described pull bar (10) upper end is provided with the external screw thread coordinated with described nut (4).
5. twin-stage bolt tensioning jack according to claim 4, is characterized in that, described cylinder body one (2) is provided with the external screw thread be fixedly connected with described cylinder body two (11), described cylinder body two (11) is equipped with internal thread.
6. twin-stage bolt tensioning jack according to claim 5, is characterized in that, described cylinder body two (11) is provided with the external screw thread be fixedly connected with described cylinder cap (6), (6) are equipped with internal thread to described cylinder cap.
7. twin-stage bolt tensioning jack according to claim 6, is characterized in that, between described cylinder body one (2) inside and described piston one (3), all has hydraulic oil between described cylinder body two (11) inside and described piston two (12).
8. twin-stage bolt tensioning jack according to claim 7, is characterized in that, the outer surface of described cylinder body one (2), described cylinder body two (11) and described cylinder cap (6) is all provided with anti-slip veins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705130.5U CN205021137U (en) | 2015-09-11 | 2015-09-11 | Double -stage bolt stretching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520705130.5U CN205021137U (en) | 2015-09-11 | 2015-09-11 | Double -stage bolt stretching device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205021137U true CN205021137U (en) | 2016-02-10 |
Family
ID=55253703
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520705130.5U Active CN205021137U (en) | 2015-09-11 | 2015-09-11 | Double -stage bolt stretching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205021137U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750897A (en) * | 2016-05-05 | 2016-07-13 | 哈尔滨工程大学 | Automatic nut tightening and returning mechanism with bolt stretching machine |
| CN113695894A (en) * | 2021-09-15 | 2021-11-26 | 重庆江增船舶重工有限公司 | Multistage cantilever type axial compressor turbine locking frock |
-
2015
- 2015-09-11 CN CN201520705130.5U patent/CN205021137U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105750897A (en) * | 2016-05-05 | 2016-07-13 | 哈尔滨工程大学 | Automatic nut tightening and returning mechanism with bolt stretching machine |
| CN113695894A (en) * | 2021-09-15 | 2021-11-26 | 重庆江增船舶重工有限公司 | Multistage cantilever type axial compressor turbine locking frock |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190329 Address after: 101599 No. 2 Dongji Road, Miyun District Industrial Development Zone, Beijing Patentee after: BEIJING BOSI GREAT MACHINERY & TRADE CO., LTD. Address before: 102400 No. 30 Ziyuan Road, Yancun, Fangshan District, Beijing Patentee before: Zhang Shuguo |