CN207569034U - Pin shaft device - Google Patents
Pin shaft device Download PDFInfo
- Publication number
- CN207569034U CN207569034U CN201721645962.8U CN201721645962U CN207569034U CN 207569034 U CN207569034 U CN 207569034U CN 201721645962 U CN201721645962 U CN 201721645962U CN 207569034 U CN207569034 U CN 207569034U
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- CN
- China
- Prior art keywords
- connecting plate
- end cap
- bolt
- axis pin
- pin shaft
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Abstract
The utility model discloses a kind of pin shaft devices, including rack, rotating bar, rotating bar is arranged between the connecting plate of the two parallel intervals arrangement of rack, there is bearing in rotating bar, the mounting hole same core arrangement on the Kong Xin and connecting plate of bearing, the stage casing of axis pin is placed in bearing, the both ends of axis pin are placed in the mounting hole on connecting plate, axis pin one end is connected with the middle part of end cap by bolt, and the end cap outside axis pin is connected with connecting plate by bolt, it is characterised in that：The position-limit mechanism of both restricted relative movement is set between end cap and connecting plate.Position-limit mechanism is provided in above-mentioned technical proposal to limit relative motion between end cap and connecting plate, institute for connection bolt by prefastening force effect without by the shear action sheared, so improving its service life.
Description
Technical field
The utility model device is related to pin shaft device, available in the axis pin assembling of underground trackless equipment, engineering machinery.
Background technology
Underground carry scraper mainly applies to mine down-hole, is taken and transported based on mineral with shovel, operating condition is extremely severe, especially
It is that the pin shaft device live load connected between each moving component is big, and loosening and cutting off easily occur in the positioning fastening bolt of axis pin
The phenomenon that.Installation positioning method is as shown in attached drawing 1,2 used in underground carry scraper pin shaft device at present, including rack 1, axis pin
2nd, fastening bolt 3, end cap 4, the end face of the axis pin 2 first connect fastening one, rack 1 and rotating bar with end cap 4 by bolt 3
There is the hole of coaxial arrangement in 5, bearing 6 is placed in the hole of rotating bar 5, and the stage casing of axis pin 2 is placed in bearing 6, the both ends of axis pin 2
It is placed in rack 1, is fastened between rack 1 and end cap 4 with bolt 3.This pin shaft device mainly has the disadvantage that：Underground carry scraper
Live load is big, and bolt 3 is easily caused fastening bolt 3 and cut off and make its dismounting inconvenient by shearing force；Due to frequently outer
Power acts on, and the loosening of bolt 3 leads to end cap Small-angle Rotation, and the Small-angle Rotation of end cap has been further exacerbated by bolt 3 and has been sheared
The frequency of effect easily causes 3 cutting phenomenon of fastening bolt, if the bolt 3 between axis pin 2 and end cap 4 is cut, axis pin 2 will be difficult
To take out, the bearing 6 of damage replaces difficulty.
Utility model content
For above-mentioned technical problem, the purpose of this utility model is that designing a kind of pin shaft device, effectively solve
The shortcomings that pin shaft device connection bolt is easily loosened and is cut off.
To achieve the above object, the utility model employs following technical scheme：A kind of pin shaft device including rack, turns
Lever, rack two parallel intervals arrangement connecting plate between arrange rotating bar, have bearing, the Kong Xin of bearing and company in rotating bar
Mounting hole same core arrangement on fishplate bar, the stage casing of axis pin are placed in bearing, and the both ends of axis pin are placed in the mounting hole on connecting plate,
Axis pin one end is connected with the middle part of end cap by bolt, and the end cap outside axis pin is connected with connecting plate by bolt, it is characterised in that：End
The position-limit mechanism of both restricted relative movement is set between lid and connecting plate.
Position-limit mechanism is provided in above-mentioned technical proposal to limit relative motion between end cap and connecting plate, institute for
The bolt of connection is only by the effect of prefastening force without by the shear action sheared, so improving its service life.
Description of the drawings
Fig. 1 is the structure chart of the prior art；
Fig. 2 is the right view of Fig. 1；
Fig. 3 is the structure chart of the utility model；
Fig. 4 is the right view of Fig. 3；
The schematic diagram of Fig. 5 tool bolts.
Specific embodiment
Pin shaft device includes rack 10, rotating bar 50, is arranged between the connecting plate 11 of the two parallel intervals arrangement of rack 10
Rotating bar 50 has bearing 60 in rotating bar 50, and Kong Xin and the mounting hole same core on connecting plate 11 of bearing 60 are arranged, axis pin 20
Stage casing is placed in bearing 60, and the both ends of axis pin 20 are placed in the mounting hole on connecting plate 11, in 20 one end of axis pin and end cap 40
Portion is connected, and the end cap 40 outside axis pin 20 is connected with connecting plate 11, and both restricted week is set between end cap 40 and connecting plate 11
To the position-limit mechanism of relative rotation.
Preferably, 40 outer edge of end cap is provided with radial direction concave or convex portion and the block on connecting plate 11
12 cooperations form position-limit mechanism.
More preferably scheme is the protrusion 41 that 40 outer edge of end cap is provided with radial arrangement, on block 12
Indentation accommodates the protrusion 41.
In said program, block 12 can regard the link condition setting two of installed position, it is ensured that end cap 40 is in axis pin
The possibility of equal non-displacement on 20 radially and circumferentially direction, to ensure bolt 30 only by pulling force effect without broken by shearing
It is bad.
In order to facilitate the dismounting of axis pin 20, process structure is provided on end cap 40, i.e. end cap 40 and connecting plate 11 is by spiral shell
Bolt 30 connects, and setting is through the craft thread hole 42 of plate body, craft thread hole 42 and 30 installation position of bolt dislocation cloth on end cap 40
It puts and the inner end in craft thread hole 42 is corresponding to the plate face of connecting plate 11, craft thread hole 42 symmetrically opens up in circumferential direction.
When needing to extract axis pin 20 out, bolt is screwed into craft thread hole 42, the head of bolt is shored on connecting plate 11, in this way by spiral shell
The end cap 40 and axis pin 20 that bolt 30 connects will be then extracted together.
Another scheme is that for the connecting hole of the company's of wearing bolt 30 end cap 40 is arranged to threaded hole, and be equipped with a work
Have bolt 70, so-called tool bolt 70 as shown in figure 5, its shaft leading portion for polished rod can and bar diameter be less than connecting plate 11 on screw thread
After next bolt 30 are unloaded, a tool bolt with the threaded hole cooperation on end cap 40 is screwed into hole position for the aperture in hole
70, the thread segment on tool bolt 70 coordinates with the threaded hole on end cap 40, and the rod end of the polished rod on tool bolt 70 supports
Threaded hole bottom hole on connecting plate 11 equally can extract end cap 40 and axis pin 20 together out.
The block 12 is selected to be made for metal material, its thickness direction intermediate processing with certain depth, width and
Meet the indentation on the notch composition block 12 of required precision.
Claims (6)
1. a kind of pin shaft device, including rack (10), rotating bar (50), the connecting plate of the two parallel intervals arrangement of rack (10)
(11) rotating bar (50) is arranged between, there is bearing (60) in rotating bar (50), the Kong Xin of bearing (60) on connecting plate (11)
Mounting hole same core arranges that the stage casing of axis pin (20) is placed in bearing (60), and the both ends of axis pin (20) are placed on connecting plate (11)
In mounting hole, axis pin (20) one end is connected with the middle part of end cap (40), the external end cap (40) of axis pin (20) and connecting plate (11)
It is connected, it is characterised in that：The position-limit mechanism of both restricted circumferentially opposed rotation is set between end cap (40) and connecting plate (11).
2. pin shaft device according to claim 1, it is characterised in that：Described end cap (40) outer edge is provided with radially
Concave or convex portion and block (12) cooperation of connecting plate (11) form position-limit mechanism.
3. pin shaft device according to claim 1 or 2, it is characterised in that：Described end cap (40) outer edge is provided with
The protrusion (41) of radial arrangement, indentation accommodates the protrusion (41) on block (12).
4. pin shaft device according to claim 1 or 2, it is characterised in that：End cap (40) is with connecting plate (11) by bolt
(30) it connects, setting is through the craft thread hole (42) of plate body on end cap (40).
5. pin shaft device according to claim 4, it is characterised in that：Dislocation is installed with bolt (30) in craft thread hole (42)
Position arrangement and craft thread hole (42) inner end correspond to connecting plate (11) plate face, craft thread hole (42) in circumferential direction
Symmetrically open up.
6. pin shaft device according to claim 4, it is characterised in that：Craft thread hole (42) is the connection of bolt (30)
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721645962.8U CN207569034U (en) | 2017-11-30 | 2017-11-30 | Pin shaft device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721645962.8U CN207569034U (en) | 2017-11-30 | 2017-11-30 | Pin shaft device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207569034U true CN207569034U (en) | 2018-07-03 |
Family
ID=62689494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721645962.8U Active CN207569034U (en) | 2017-11-30 | 2017-11-30 | Pin shaft device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207569034U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131271A (en) * | 2019-07-02 | 2019-08-16 | 重庆宝润矿山机械制造有限公司 | Pin shaft for underground hydraulic support of mining |
| RU215316U1 (en) * | 2022-10-20 | 2022-12-08 | Общество с ограниченной ответственностью РиД | Connecting pin with integrated puller |
-
2017
- 2017-11-30 CN CN201721645962.8U patent/CN207569034U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110131271A (en) * | 2019-07-02 | 2019-08-16 | 重庆宝润矿山机械制造有限公司 | Pin shaft for underground hydraulic support of mining |
| RU215316U1 (en) * | 2022-10-20 | 2022-12-08 | Общество с ограниченной ответственностью РиД | Connecting pin with integrated puller |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |