CN204927229U

CN204927229U - X -ray tube

Info

Publication number: CN204927229U
Application number: CN201520624486.6U
Authority: CN
Inventors: 约尔格·弗罗伊登贝格尔; 傅安雅; 刘灿彬; 程如柏
Original assignee: Siemens X Ray Vacuum Technology Ltd
Current assignee: Siemens X Ray Vacuum Technology Ltd
Priority date: 2015-08-18
Filing date: 2015-08-18
Publication date: 2015-12-30
Anticipated expiration: 2025-08-18
Also published as: WO2017028473A1

Abstract

The utility model discloses a X -ray tube, include: a rotor shaft, a rotor seat, rotor seat structure as an organic whole, it is electrically conductive and thermal -insulated, the rotor seat with rotor shaft fixed connection, a bearing, bearing fixed connection extremely the rotor seat. The utility model discloses a X -ray tube has increased anodal radiation cooling ability and has reduced the heat effect of antitrochanter and bearing. The positive pole can use under high temperature, and positive pole whole like this can be made and the graphite of need not brazing by the TZM molybdenum alloy. Compare in fixed anode X -ray tube, the utility model discloses a X -ray tube has pulse power in short -term high relatively and less size, and compares in the large size rotatory bulb, has continuous power high relatively.

Description

X-ray tube

Technical field

The utility model relates to X-ray tube.

Background technology

X-ray tube roughly has three classes: rotating anode X-ray tube, fixed anode X-ray tube and rotational shell X-ray tube.Although fixed anode X-ray tube pipe is easy to miniaturized, its power is lower usually, can not meet the requirement of higher-wattage X-ray production apparatus.Rotary anode type pipe is much bigger, and its advantage works in pulse power high, in short-term.

The bottleneck realizing high continuous power is the variations in temperature of rotor and bearing.Generally speaking, the X-ray tube with high continuous power has sizable anode.In addition, the distance---such as Extending Rotor axle---increased between anode and bearing will increase thermal resistance.

Prior art also adopts pottery as rotator seat, with the heat transfer of isolated anode and bearing, but needs extra metallic plate at armature spindle, sets up be electrically connected between bolt and bearing.

Utility model content

In view of this, the utility model proposes a kind of X-ray tube.

According to an embodiment of the present utility model, a kind of X-ray tube is provided, comprises: an armature spindle; One rotator seat, described rotator seat is structure as a whole, conduction and heat insulation, described rotator seat is fixedly connected with described armature spindle; One bearing, described bearing is fixedly attached to described rotator seat.

In one embodiment, described X-ray tube also comprises a plurality of bolt, and described bearing is fixedly attached to described rotator seat by described bolt.

In one embodiment, described X-ray tube also comprises a rotor cover, and described bolt is fixedly connected with described rotor cover.

In one embodiment, described X-ray tube also comprises a nut, and described armature spindle is arranged in described rotator seat, described nut and described armature spindle threaded engagement.

X-ray tube of the present utility model increases the radiation cooling capacity of anode and the heat effect reduced rotor and bearing.Anode can at high temperature use, and whole like this anode can be made up of TZM molybdenum alloy and not need soldering graphite.Compared to fixed anode X-ray tube, X-ray tube of the present utility model has relatively high short-time pulse power and less size, and compared to large-sized rotation bulb, has relatively high continuous power.

Accompanying drawing explanation

Preferred embodiment of the present utility model will be described in detail by referring to accompanying drawing below, the person of ordinary skill in the art is more clear that above-mentioned and other feature and advantage of the present utility model, in accompanying drawing:

Fig. 1 is the stereogram of the X-ray tube according to an embodiment of the present utility model.

Fig. 2 is the cutaway view of the X-ray tube of Fig. 1.

In above-mentioned accompanying drawing, the Reference numeral adopted is as follows:

100X ray tube 110 nut

102 target 112 bolts

104 bearing 114 rotor covers

106 armature spindle 116 holes

108 rotator seat 118 projections

Embodiment

For making the purpose of this utility model, technical scheme and advantage clearly, by the following examples the utility model is further described.

Fig. 1 is the stereogram of the X-ray tube 100 according to an embodiment of the present utility model, and Fig. 2 is the cutaway view of the X-ray tube 100 of Fig. 1, illustrate only the closely-related part with the utility model in figure.X-ray tube 100 comprises target 102, bearing 104, armature spindle 106 and a rotator seat 108.Rotator seat 108 is structure as a whole, conduction and heat insulation, rotator seat 108 is fixedly connected with armature spindle 106.In the present embodiment, X-ray tube 100 also comprises a nut 110, and armature spindle 106 is arranged in rotator seat 108, nut 110 and armature spindle 106 threaded engagement, thus together with the projection 118 being positioned at opposite side, armature spindle 106 is fixed on rotator seat 108.Rotator seat 108 can select thermal insulating steel X15CrNiSi25-20 or X15CrNiSi25-21 etc.

Bearing 104 is fixedly attached to rotator seat 108.In addition, armature spindle 106 is also fixedly connected with target 102.Therefore, bearing 104 can rotor driven seat 108, armature spindle 106 and target 102 rotate.In the present embodiment, X-ray tube 100 also comprises a plurality of bolt 112, and bearing 104 is fixedly attached to rotator seat 108 by bolt 112.

X-ray tube 100 also comprises a rotor cover 114, and bolt 112 is fixedly connected with rotor cover 114.Rotor overlaps 114 available copper and makes, for heat radiation.

The wall of rotor cover 114 can arrange several holes 116, so that after construction bolt 112, by bolt 112 spot welding and bearing 104, prevent bolt 112 from loosening when High Rotation Speed.

High pressure is transmitted to armature spindle 106 and target 102 from bearing 104 by rotator seat 108 1 aspect, and trap heat is transmitted to bearing 104 from target 102 and armature spindle 106 on the other hand.This heat rejection is very necessary, because bearing 104 is generally ball bearing, it has the coating that aluminium or silver are made, lubricate.This coating is to responsive to temperature.

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 range of the present utility model.

Claims

1. an X-ray tube, comprising:

One armature spindle (106);

One rotator seat (108), described rotator seat (108) is structure as a whole, conduction and heat insulation, described rotator seat (108) is fixedly connected with described armature spindle (106);

One bearing (104), described bearing (104) is fixedly attached to described rotator seat (108).

2. X-ray tube as claimed in claim 1, it is characterized in that, described X-ray tube also comprises a plurality of bolt (112), and described bearing (104) is fixedly attached to described rotator seat (108) by described bolt (112).

3. X-ray tube as claimed in claim 2, it is characterized in that, described X-ray tube also comprises a rotor cover (114), and described bolt (112) is fixedly connected with described rotor cover (114).

4. X-ray tube as claimed in claim 1, it is characterized in that, described X-ray tube also comprises a nut (110), described armature spindle (106) is arranged in described rotator seat (108), described nut (110) and described armature spindle (106) threaded engagement.