CN202228061U

CN202228061U - Radial connection structure

Info

Publication number: CN202228061U
Application number: CN201120336443XU
Authority: CN
Inventors: 侯洪为; 廖胜军; 张志刚
Original assignee: China Oilfield Services Ltd; China National Offshore Oil Corp CNOOC
Current assignee: China Oilfield Services Ltd; China National Offshore Oil Corp CNOOC
Priority date: 2011-09-08
Filing date: 2011-09-08
Publication date: 2012-05-23
Anticipated expiration: 2021-09-08

Abstract

The utility model discloses a radial connection structure and overcomes the problems occurring in the operation of fixing a glass fiber reinforced plastic insulated cylinder on an outer housing through radial screws. The radial connection structure comprises an insulated housing (1), a circular ring-shaped fixed sleeve (2), a positioning pin (3) and a lower adapter (4), wherein the insulated housing (1) is sleeved on the outer circumference of a metal housing (5) and can not rotate relative to the metal housing (5), the fixed sleeve (2) is sleeved in the groove of the lower adapter (4), the lower adapter (4) is connected with the metal housing (5) (i.e. device housing) through a fast-rotating nut, and the positioning pin (3) is mounted in the pin hole of the fixed sleeve (2) by means of interference fit and matched with the pin hole in the lower adapter (4), so as to prevent the fixed sleeve (2) from rotating. According to the radial connection structure provided in the embodiment of the utility model, the insulated housing is fixed on the device housing through a step, and the insulated housing is conveniently dismounted without needing to dismount the device main body.

Description

A kind of radially syndeton

Technical field

The utility model relates to earth surveying device, relates in particular to a kind of radially syndeton.

Background technology

The balance pipe nipple periphery of electricity imaging downhole instrument telescoping ram needs suit glass fibre reinforced plastic insulating tube, and insulating cylinder needs and the balance shell is fixed.Mainly be to adopt radial screw that the glass fibre reinforced plastic insulating tube is fixed on the shell at present.But this fixed form, the anti-vibration performance is poor, and screw is loosening easily, and the axial carrying capacity of glass fibre reinforced plastic insulating tube is also relatively poor, when operation or instrument are adsorbed on the borehole wall in inclined shaft, occurs the situation that the glass fibre reinforced plastic insulating tube comes off easily, causes the well accident.

The utility model content

The utility model technical problem to be solved is to overcome prior art to adopt radial screw that the glass fibre reinforced plastic insulating tube is fixed on existing deficiency on the shell.

In order to solve the problems of the technologies described above, the utility model provides a kind of radially syndeton, comprises fixed cover (2), alignment pin (3) and the lower contact (4) of insulation crust (1), annular, wherein:

Said insulation crust (1) is enclosed within on the excircle of metal shell (5) of instrument; (5 is non-rotatable relatively with said metal shell; Said fixed cover (2) is enclosed within the groove of said lower contact (4), and said lower contact (4) is connected with said tool housing (5) through Rapid-turning nut, and said alignment pin (3) interference is installed in the pin-and-hole of said fixed cover (2); Match with the pin-and-hole in the said lower contact (4), prevent said fixed cover (2) rotation.

Preferably; Said fixed cover (2) comprises first fixing half cover (25) and second fixing half cover (26) of semi-round ring shape; Each fixing partly putting is all contained tapped through hole (21) and screwed hole (22); Tapped through hole (21) on said first fixing half cover (25) matches with screwed hole (22) on said second fixing half cover (26), and the tapped through hole (21) on said second fixing half cover (26) matches with the said first fixing screwed hole (22) that partly overlaps on (25).

Preferably, said first fixing half cover (25) is provided with first pin-and-hole (31);

Said second fixing half cover (26) is provided with second pin-and-hole (32).

Preferably, after the said first fixing partly cover (25) and second fixing half cover (26) are connected through circumferential screw, be enclosed within the groove of said lower contact (4).

Preferably, said circumferential screw is along being installed on the direction that is parallel to said fixed cover (2) tangent to periphery direction on said first fixing half cover (25) and second fixing half cover (26).

Preferably, said fixed cover (2) is provided with anti-rotation convexity (12), matches with groove on the said metal shell (5), prevents that said fixed cover (2) and said metal shell (5) from rotation relatively taking place.

Preferably, said insulation crust (1) is provided with first balance pipe (11), goes up second balance pipe (51) that is provided with the metal shell (5) of said instrument and aligns.

Compared with prior art, the radially syndeton of the utility model embodiment utilizes step that insulation crust is fixed on the tool housing, under the prerequisite of not dismantling apparatus subject, can dismantle insulation crust easily.

Description of drawings

Fig. 1 is the profile sketch map of the utility model embodiment.

Fig. 2 is a structural representation embodiment illustrated in fig. 1.

Fig. 3 is a B-B generalized section embodiment illustrated in fig. 1.

The specific embodiment

Below will combine accompanying drawing and embodiment to specify the embodiment of the utility model, how the application technology means solve technical problem to the utility model whereby, and the implementation procedure of reaching technique effect can make much of and implement according to this.

Fig. 1 is the profile sketch map of the utility model embodiment, and Fig. 2 is a structural representation embodiment illustrated in fig. 1, and Fig. 3 is a B-B generalized section embodiment illustrated in fig. 1.

Like Fig. 1, Fig. 2 and shown in Figure 3, the radially syndeton of present embodiment mainly comprises insulation crust 1, fixed cover 2, alignment pin 3 and lower contact 4.Insulation crust 1 is enclosed within on the excircle of instrument metal shell 5, and the two is non-rotatable relatively, and fixed cover 2 is enclosed within the groove of lower contact 4.Lower contact 4 is connected with the metal shell 5 of instrument through Rapid-turning nut.Insulation crust 1 adopts the glass fiber reinforced plastic material in the present embodiment.

Split type fixed cover 2 comprises fixing half cover of two semi-round ring shapes; Being respectively first fixing partly overlap 25 and second and fixes and partly overlap 26; Each fixing partly putting is all contained tapped through hole 21 and screwed hole 22; Wherein the first fixing tapped through hole 21 that partly overlaps on 25 matches with the second fixing screwed hole 22 that partly overlaps on 26, and the second fixing tapped through hole 21 that partly overlaps on 26 matches with the first fixing screwed hole 22 that partly overlaps on 25 simultaneously.After these two fixing half covers connect through two circumferential screws, form the fixed cover 2 of annular, be enclosed within the groove of lower contact 4, prevent that fixed cover 2 from gliding, thereby prevent that insulation crust 1 from gliding.Wherein circumferentially screw fixingly partly overlaps 25 and second and fixes and partly overlap in the tapped through hole 21 and screwed hole 22 that matches on 26 along being installed on aforementioned first on the direction that is parallel to fixed cover 2 tangent to periphery directions.

Insulation crust 1 upwards slides, by 9 restrictions of top connection step.Alignment pin 3 interference are installed in the pin-and-hole of fixed cover 2, match with pin-and-hole in the lower contact 4, prevent fixed cover 2 rotations, thereby have reached the purpose that prevents insulation crust 1 rotation.Wherein, each fixing partly putting all includes alignment pin 3 corresponding pin-and-holes, and wherein first fixing partly the overlapping on 25 is that fixing partly the overlapping of first pin-and-hole 31, the first on 26 is first pin-and-hole 32.

In addition, as shown in Figure 3, each is fixing to put partly that to be provided with anti-rotation protruding 12, matches with groove on the metal shell 5 of instrument, prevents better to occur rotating between the metal shell 5 of insulation crust 1 and instrument.

Insulation crust 1 is provided with first balance pipe 11, and the metal shell 5 of instrument is provided with second balance pipe, 51, the first balance pipes 11 and 51 alignment of second balance pipe, flows in the cavity of tool housing 5 lower ends to guarantee mud.

The embodiment of the utility model adopts split type radially adapter sleeve to be sleeved on tool housing or the joint, and is used for fixing insulation crust with shell formation step.Among the embodiment of the utility model, be bumped into alignment pin two fixing partly putting, and in lower contact, open the way of radial hole, the incompatible restriction that matches of the directional hole in alignment pin and the lower contact is rotated.Be connected reliably between the embodiment of the utility model, fixed cover and shell or joint, the anti-vibration performance is good, and the glass fibre reinforced plastic insulating tube is fixing reliable, and axial carrying capacity is strong, has improved the reliability and the safety of instrument operation.

Existing instrument is opened the radial screw hole on insulation crust, on metal-back, open radial screw bore, adopts radial screw to fix, and greatly the time, causes insulation crust to come off or break with wall friction easily at insulation crust, causes the well accident.Simultaneously, on metal-back, open screwed hole, also reduced the compressive resistance of metal-back, the safety factor of lowering apparatus.Among the utility model embodiment, the dismounting of insulation crust only need be dismantled the circumferential hold-down screw on the fixed cover, so dismounting is very convenient.The axial force of insulation crust is delivered on the lower contact step by fixed cover, reasonable stress, and supporting capacity is strong, can not cause coming off or breaking of insulation crust.

Though the embodiment that the utility model disclosed as above, the embodiment that described content just adopts for the ease of understanding the utility model is not in order to limit the utility model.Technician under any the utility model in the technical field; Under the prerequisite of spirit that does not break away from the utility model and disclosed and scope; Can do any modification and variation what implement in form and on the details; But the scope of patent protection of the utility model still must be as the criterion with the scope that appending claims was defined.

Claims

1. a syndeton radially is characterized in that, comprises fixed cover (2), alignment pin (3) and the lower contact (4) of insulation crust (1), annular, wherein:

2. radially syndeton according to claim 1 is characterized in that:

Said fixed cover (2) comprises first fixing half cover (25) and second fixing half cover (26) of semi-round ring shape; Each fixing partly putting is all contained tapped through hole (21) and screwed hole (22); Tapped through hole (21) on said first fixing half cover (25) matches with screwed hole (22) on said second fixing half cover (26), and the tapped through hole (21) on said second fixing half cover (26) matches with the said first fixing screwed hole (22) that partly overlaps on (25).

3. radially syndeton according to claim 2 is characterized in that:

Said first fixing half cover (25) is provided with first pin-and-hole (31);

Said second fixing half cover (26) is provided with second pin-and-hole (32).

4. radially syndeton according to claim 2 is characterized in that:

After the said first fixing partly cover (25) and second fixing half cover (26) are connected through circumferential screw, be enclosed within the groove of said lower contact (4).

5. radially syndeton according to claim 4 is characterized in that:

Said circumferential screw is along being installed on the direction that is parallel to said fixed cover (2) tangent to periphery direction on said first fixing half cover (25) and second fixing half cover (26).

6. radially syndeton according to claim 1 is characterized in that:

Said fixed cover (2) is provided with anti-rotation convexity (12), matches with groove on the said metal shell (5), prevents that said fixed cover (2) and said metal shell (5) from rotation relatively taking place.

7. radially syndeton according to claim 1 is characterized in that:

Said insulation crust (1) is provided with first balance pipe (11), goes up second balance pipe (51) that is provided with the metal shell (5) of said instrument and aligns.