CN203239746U - Pin roll device - Google Patents
Pin roll device Download PDFInfo
- Publication number
- CN203239746U CN203239746U CN 201320201877 CN201320201877U CN203239746U CN 203239746 U CN203239746 U CN 203239746U CN 201320201877 CN201320201877 CN 201320201877 CN 201320201877 U CN201320201877 U CN 201320201877U CN 203239746 U CN203239746 U CN 203239746U
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- China
- Prior art keywords
- screw
- pin
- pin roll
- shaft device
- pin shaft
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Abstract
The utility model relates to the technical field of oil well logging, and in particular relates to a pin roll device, which comprises a pin roll and an anti-off screw which are fixedly connected with each other. According to the pin roll device provided by the utility model, the pin shaft and the anti-off screw are fixed together, so that the structure of the pin roll device is compact, and the situation that the pin roll device falls off due to collision when going down to a well is prevented. After the pin roll and the anti-off screw are fixed, a movement mechanism fixed by the pin roll device is prevented from transversely moving; a connection mode of the pin roll and the anti-off screw through triangular fine threads, and a damping effect of an elastic sealing ring ensure that an instrument is reliably connected under the action of impact load so as to achieve an anti-off effect.
Description
Technical field
The utility model relates to the petroleum well logging technology field, particularly a kind of pin shaft device.
Background technique
On the oil well logging engineering, many motions need to connect with bearing pin.Can do relative motion between each coupled motion, namely dynamically connect.In dynamically connecting, Instrument shell and each member that can be movable relatively are linked together by bearing pin, do not come off from the axial direction of bearing pin for guaranteeing each member, and anti-drop device must be arranged, and the bearing pin that is provided with anti-drop device is called the anti-break pin device.The anti-break pin device that generally adopt in present oil field, formed by step pin axle and stainless steel cotter pin, having a manhole near the bearing pin miner diameter end, packing into the stainless steel cotter pin in the manhole and break into two with one's hands from the centre, guaranteeing that each motion does not come off from the bearing pin axial direction.By the anti-break pin device that step pin axle and stainless steel cotter pin form, although solved living embroidery problem, subsurface environment is abominable, and go into the well process and the bore hole borehole wall of instrument do not stop collision, causes easily cotter pin to hang up, bump disconnected.
The model utility content
Technical problem to be solved in the utility model provides the pin shaft device of a kind of anticollision, Drop-proof.
For solving the problems of the technologies described above, the utility model provides a kind of pin shaft device, comprises bearing pin and anti-loosing screw.Described bearing pin is Step Shaft.The end face of the end that described pin diameter is less is provided with closed hole.Described anti-loosing screw is installed in the described closed hole.
Further, described closed hole inside bottom is provided with screw thread.Screw thread on the described anti-loosing screw is identical with the screw thread of described closed hole inside bottom.
Further, also comprise seal ring.Be provided with seal groove on the described anti-loosing screw.Described seal ring is enclosed within on the described seal groove.
Further, described seal ring adopts elastic material to make.
Further, the screw thread bottom the described closed hole and the screw thread on the described anti-loosing screw are the triangle fine thread.
Further, described bearing pin and described anti-loosing screw all adopt titanium steel Tc11 to make.
Further, be provided with the rim of the mouth on the end face that described anti-loosing screw diameter is larger.
The pin shaft device that the utility model provides, anti-loosing screw is installed in the closed hole, so that the compact structure of pin shaft device prevents that pin shaft device from bumping in the process of going into the well.After bearing pin and anti-loosing screw are fixing, prevented the motion generation lateral displacement that pin shaft device is fixed, bearing pin connects in the mode that is spirally connected by the triangle fine thread with anti-loosing screw, connects reliably, can reach the effect of Drop-proof.
Description of drawings
The pin shaft device working state schematic representation that Fig. 1 provides for the utility model embodiment.
The pin shaft structure schematic representation that Fig. 2 provides for the utility model embodiment.
The anti-loosing screw structural representation that Fig. 3 provides for the utility model embodiment.
Embodiment
Referring to Fig. 1-Fig. 3, a kind of pin shaft device that the utility model embodiment provides comprises bearing pin 1, anti-loosing screw 3 and seal ring 2.Bearing pin 1 is Step Shaft, and is provided with closed hole on the end face of the less end of bearing pin 1 diameter, is provided with screw thread in the closed hole.Screw thread in screw thread on the anti-loosing screw 3 and the closed hole is identical.Anti-loosing screw 3 is installed in the closed hole.Be provided with seal groove on the anti-loosing screw 3, seal ring 2 is enclosed within on the seal groove.Seal ring 2 adopts elastic material to make.Screw thread in the closed hole and the screw thread on the anti-loosing screw 3 are the triangle fine thread.Bearing pin 1 and anti-loosing screw 3 all adopt titanium steel Tc11 to make.Be provided with the rim of the mouth on the larger end face of anti-loosing screw 3 diameters.
The working principle of the pin shaft device that the utility model provides is as follows: referring to Fig. 1, bearing pin 1 passes thrust plate 4 and thrust rod 5 is fixed together with anti-loosing screw 3, so that the compact structure of pin shaft device prevents that pin shaft device from bumping in the process of going into the well.After bearing pin 1 is fixed with anti-loosing screw 3, prevented that thrust rod 5 and thrust plate 4 that pin shaft device is fixed from lateral displacement occuring, bearing pin 1 passes through the connecting mode of triangle fine thread and the damping function of elastic seal ring with anti-loosing screw 3, guarantee that instrument is when being hit load, connect reliably, can reach the effect of Drop-proof.Be provided with seal groove on the anti-loosing screw 3, seal ring 2 is enclosed within on the seal groove, can prevent that extraneous silt and corrosive material from entering on the scyewed joint face of bearing pin 1 and anti-loosing screw 3, be provided with the rim of the mouth on the larger end face of anti-loosing screw 3 diameters, be convenient to installation or removal.Bearing pin 1 and anti-loosing screw 3 all adopt titanium steel Tc11 to make, can be corrosion-resistant, increased the working life of pin shaft device.
The utility model embodiment has following beneficial effect:
1, bearing pin 1 passes motion and anti-loosing screw 3 is fixed together, so that the compact structure of pin shaft device prevents that pin shaft device from bumping with the borehole wall in the process of going into the well.
2, bearing pin 1 with connect in the mode that is spirally connected by the triangle fine thread with elastic seal ring anti-loosing screw 3, connect reliably, can reach the effect of Drop-proof.
3, be provided with seal groove on the anti-loosing screw 3, seal ring is enclosed within on the seal groove, can prevent that extraneous silt and corrosive material from entering on the scyewed joint face of bearing pin 1 and anti-loosing screw 3, and is for convenience detach.
4, bearing pin 1 and anti-loosing screw 3 all adopt titanium steel Tc11 to make, can be corrosion-resistant, increased the working life of pin shaft device.
5, be provided with the rim of the mouth on the end face that anti-loosing screw 3 diameters are larger, be convenient to installation or removal.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described, although with reference to example the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. a pin shaft device is characterized in that, comprises bearing pin (1) and anti-loosing screw (3); Described bearing pin (1) is Step Shaft;
The end face of the end that described bearing pin (1) diameter is less is provided with closed hole;
Described anti-loosing screw (3) is installed in the described closed hole.
2. pin shaft device according to claim 1 is characterized in that, described closed hole inside bottom is provided with screw thread;
Screw thread on the described anti-loosing screw (3) is identical with the screw thread of described closed hole inside bottom.
3. pin shaft device according to claim 2 is characterized in that, also comprises seal ring (2);
Described anti-loosing screw is provided with seal groove on (3);
Described seal ring (2) is enclosed within on the described seal groove.
4. pin shaft device according to claim 2 is characterized in that, described seal ring adopts elastic material to make.
5. pin shaft device according to claim 2 is characterized in that, the screw thread on the screw thread of described closed hole inside bottom and the described anti-loosing screw (3) is the triangle fine thread.
6. pin shaft device according to claim 1 is characterized in that, described bearing pin (1) and described anti-loosing screw (3) all adopt titanium steel Tc11 to make.
7. pin shaft device according to claim 1 is characterized in that, has been provided with the rim of the mouth on the larger end face of described anti-loosing screw (3) diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201877 CN203239746U (en) | 2013-04-19 | 2013-04-19 | Pin roll device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320201877 CN203239746U (en) | 2013-04-19 | 2013-04-19 | Pin roll device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203239746U true CN203239746U (en) | 2013-10-16 |
Family
ID=49317050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320201877 Expired - Fee Related CN203239746U (en) | 2013-04-19 | 2013-04-19 | Pin roll device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203239746U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302144A (en) * | 2016-04-15 | 2017-10-27 | 施耐德电器工业公司 | Pluggable electrical module |
-
2013
- 2013-04-19 CN CN 201320201877 patent/CN203239746U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107302144A (en) * | 2016-04-15 | 2017-10-27 | 施耐德电器工业公司 | Pluggable electrical module |
| CN107302144B (en) * | 2016-04-15 | 2019-12-24 | 施耐德电器工业公司 | Pluggable electrical module |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131016 Termination date: 20210419 |