CN212330774U - Locking and protecting device for CT tube target disk - Google Patents

Abstract

The utility model relates to a CT tube target dish locking protection device, including the target dish subassembly, the lag, a pedestal, the lag suit is on the target dish subassembly, characterized by still is provided with the latch segment, the locking ring, the elastic support subassembly, latch segment taper hole and the outer conical surface cooperation of locking screw, slide connection on the locking ring pit is placed in to the latch segment, latch segment both sides limit and locking ring pit limit cooperation, the latch segment passes through cambered surface and target dish cooperation, the target dish passes through target dish stop screw to be fixed on the locking ring, set up elastic support subassembly support target dish subassembly between target dish subassembly bottom and the base, the locking ring is provided with the locking screw hole, locking screw hole extreme low level is less than the locking screw extreme low level. The locking ring is made of elastic materials or has an elastic structure, so that the locking ring is not damaged when moving outwards to press the base. The elastic structure of the locking ring is a plurality of uniformly distributed grooves which are uniformly distributed along the circumferential direction of the inner side of the locking ring. The target disc assembly is simple in structure, convenient to use, reliable in fixation and not prone to damage.

Description

Locking and protecting device for CT tube target disk

Technical Field

The application relates to a locking protection device for a CT tube target disc, which is mainly used for fixing and protecting the target disc component in the process of target disc weight removal (operation that the target disc is uniformly balanced and the rotational inertia is as small as possible through adjustment).

Background

The tool used in the prior art only has the circumferential positioning function of the target disc and does not have the target disc clamping function. The method has the following problems: the target disc cannot be reliably fixed, so that parts, machine tools and tools have large vibration in the weight removing process, and the graphite surface of the target disc is damaged. In addition, the bottom of the tool is lack of a supporting device, so that the target plate assembly is inconvenient to take when disassembled and assembled.

Disclosure of Invention

The technical problem that this application was solved is to overcome the above-mentioned not enough that exists among the prior art, and provides a structure succinct, convenient to use, fixed reliable CT pipe target dish locking protection device.

The technical scheme adopted by the application for solving the technical problems is as follows:

the utility model provides a CT tube target dish locking protection device, including the target dish subassembly, the lag, a pedestal, the lag suit is on the target dish subassembly, characterized by still is provided with the latch segment, the locking ring, elastic support component, the cooperation of latch segment taper hole and locking screw external conical surface, the latch segment is arranged in sliding connection on the locking ring pit, latch segment both sides limit and locking ring pit limit cooperation, the latch segment passes through cambered surface and target dish cooperation, the target dish passes through the target dish stop screw to be fixed on the locking ring, set up elastic support component support target dish subassembly between target dish subassembly bottom and the pedestal, the locking ring is provided with the locking screw hole, the locking screw hole extreme lower than the locking screw extreme lower position.

The locking ring is made of elastic materials or has an elastic structure, so that the locking ring is not damaged when moving outwards to press the base.

The gap is arranged between the outer conical surface of the locking screw and the locking block in the initial state, when the locking screw is screwed down to enable the locking block to press the target plate, the gap which is smaller relative to the initial state is arranged between the outer conical surface of the locking screw and the locking block, when the locking screw is screwed down continuously, the radial outer circle part of the locking ring just opposite to the locking screw props against the corresponding part of the base, and therefore the locking ring props against the base and is fixed and reliable.

The elastic structure of the locking ring is a plurality of uniformly distributed grooves which are uniformly distributed along the circumferential direction of the inner side of the locking ring, so that the inner side is not limited and cannot be damaged when the locking ring is externally supported.

The elastic support assembly is composed of an upper spring top ring, a spring and a spring fixing seat, the upper spring top ring is in contact with the target plate assembly, the spring fixing seat is installed on the base, and the spring is arranged between the upper spring top ring and the spring fixing seat and supports the upper spring top ring.

This application still is provided with dustproof stopper, and the hole of copper sheathing is filled in to dustproof stopper and with target dish upper surface laminating.

This application still is provided with the graduated disk, and the graduated disk is fixed with the base, and the cursor observation hole on 0 degrees position of graduated disk and the base corresponds.

Compared with the prior art, the application has the following advantages and effects: the structure is succinct, convenient to use, and is fixed reliable, has solved the unable locking of heavy in-process target dish, leads to heavy in-process part, and lathe and frock vibration are serious, damage target dish graphite surface to and the inconvenient problem of taking when target dish subassembly dismouting.

Drawings

Fig. 1 is an exploded schematic view of an embodiment of the present application.

Fig. 2 is a schematic top view of an embodiment of the present application.

Fig. 3 is a schematic sectional view a-a of fig. 2.

FIG. 4 is a schematic view of the locking block, target disc, locking ring, locking screw and base in the initial state according to the embodiment of the present application.

FIG. 5 is a schematic view of the locking block of the embodiment of the present application in a state of being pressed against the target plate, in which the portion of the locking ring corresponding to the locking screw is about to move outward to support the base while the locking screw is further screwed down.

FIG. 6 is a schematic view of the locking state of the locking block pushing against the target plate and locking the outer supporting base of the ring according to the embodiment of the present application.

Detailed Description

The present application will be described in further detail below with reference to the accompanying drawings by way of examples, which are illustrative of the present application and are not limited to the following examples. The present application describes the inner, outer, upper and lower directions with respect to fig. 3.

Referring to fig. 1 to 6, the present embodiment includes:

1-dust plug, the dust plug 1 is directly plugged into the inner hole of the copper sleeve 22 (the part connected with the target disc 21) and is attached to the upper surface of the target disc 21, so as to prevent iron filings from flying into the copper sleeve 22 in the weight removing process.

2-target plate assembly, including target plate 21, copper sheathing 22, bearing assembly 23, the metal lower surface of target plate assembly 2 rests on the arch 53 of locking piece 5, and the surface is withstood locking by locking piece 5, and the upper surface is pressed spacing by target plate stop screw 3.

3-target plate limit screw

After the target disc 21 is installed in the locking ring 6, the target disc limiting screw 3 is screwed in a corresponding hole of the locking ring 6, and the plane of the target disc limiting screw 3 is directly pressed on the surface of the target disc 21, so that the target disc 21 cannot be inclined in the process of locking the target disc 21.

4-locking screw

The outer conical surface 41 of the locking screw 4 is matched with the conical hole 54 of the locking block 5, and when the locking screw 4 is screwed into the locking ring 6 downwards, the locking block 5 is pushed inwards by the inward component force on the outer conical surface 41, so that the target plate 21 is locked.

5-locking block

The taper hole 54 of the locking block 5 is matched with the inner side of the outer taper surface 41 of the locking screw 4, the bottom surface is contacted with the surface of the concave pit 62 of the locking ring 6, and the edges 52 at two sides (which refer to two sides along the radial direction of the target disc 21) are matched with the concave pit 62 of the locking ring 6, so as to ensure that the target disc 21 always moves along the radial direction. The contact position of the locking block 5 and the target disc 21 is a matched locking block 5 cambered surface 51 to ensure uniform stress during locking, and the lower part of the locking ring 5 is provided with a section of arc-shaped bulge 53 (namely the lower part of the cambered surface 51) which can play a role of limiting and supporting the target disc 21 below during locking. The locking block 5 is moved inward from the initial state (see fig. 4, at this time, the locking ring 6 is in the normal undeformed state, and the locking block 5 corresponds to the locking screw hole 64), and the distance is generally between 0.25 and 0.75 mm.

6-locking ring

The function of the locking ring 6 is to provide support for the locking screw 4 and to brace the base 8 outward after the locking block 5 is pushed inward into place by the locking screw 4. Referring to fig. 4, in the initial state, the inner side of the outer tapered surface 41 of the locking screw 4 is engaged with the locking block tapered hole 54 to abut against or close to the locking block tapered hole 54, and a gap 55 is formed between the outer side of the outer tapered surface 41 of the locking screw 4 and the locking block 5. referring to fig. 5, when the locking screw 4 is screwed down, a downward pressure F1 generates an inward component F2 and a component along the inclined surface. Under the action of the inward component F2, the locking block 5 is pushed inward until contacting the outer circle of the target disk 21. When the locking block 5 and the target plate 21 are completely contacted, the outer side of the outer tapered surface 41 of the locking screw 4 still has a clearance 55 with the locking block 5, but the clearance 55 is reduced relative to the initial state. Because the locking ring 6 is provided with the locking screw hole 64, and the lowest position of the locking screw hole 64 is away from the lowest position of the locking screw 4 (the locking screw 4 does not abut against the locking screw hole 64 before the locking ring 6 supports the base 8 outwards, or the locking screw 4 does not touch the base 8 when the locking screw hole 64 is a through hole, see fig. 6), the locking screw 4 can still move downwards continuously, that is, the downward force of F1 still exists, but the locking block 5 cannot move inwards any more, and the inner side of the outer conical surface 41 of the locking screw 4 is limited by the locking block conical hole 54 and must move downwards and outwards. Therefore, under the action of the reaction force F3 of F2, the portion 65 of the locking ring 6 located radially outside the locking screw 4 is gradually expanded by the outward force F3 facing the outside of the thread of the locking screw 4, and the portion of the outer circle of the locking ring 6 facing radially toward the locking screw 4 is pressed against the corresponding portion 83 of the base 8, so that the locking ring 6 is firmly fixed.

As the locking ring 6 may damage the structure of the locking ring 6 when expanding outwards, as a technical means for solving the technical problem, the present application opens a plurality of (six in specific example) evenly distributed grooves 63 evenly distributed along the circumferential direction of the locking ring 6 on the inner side of the locking ring 6, when expanding outwards, the inner side of the locking ring 6 is allowed to expand and deform in a larger extent due to the action of the evenly distributed grooves 63, and the part between two adjacent locking screws 4 on the outer side of the locking ring 6 is changed from arc shape to straight shape, so as to allow the partial (mainly the radial corresponding part of the locking screw 4, and the other part, especially the middle part between two adjacent locking screws 4, may also contract inwards) of the locking ring 6 to move outwards and prop against the base 8, and the fixation is reliable. The maximum outward moving distance of the locking ring 6 corresponding to the locking screw 4 is generally 0.1-0.5 mm.

7-protective sleeve

The protecting sleeve 7 is arranged in an inner hole of the base 8, and the inner hole of the protecting sleeve 7 is slightly larger than the outer diameter of the copper sleeve 22, so that the surface of the copper sleeve 22 is not scratched when the target disc assembly 2 is arranged in a tool.

8-base

The locking ring step 81 of the base 8 is used for supporting the locking ring 6, and an inner hole connected with the locking ring is tightly supported with the outer circle of the locking ring 6 to form a whole when the locking ring is used, so that the vibration of the tool and parts in the process of removing the weight is prevented. The inner hole in the middle of the base 8 is used for installing the protective sleeve 7. The base 8 has a cursor viewing hole 82 at a position corresponding to 0 degrees of the index plate 13 for calibrating the angle of the target plate assembly 2 during de-weighting. The lower part of the base 8 is respectively connected with a spring fixing seat 11 and an index plate 13.

9-spring top ring

The upper surface of the upper spring top ring 9 is in contact with the lower surface of the bearing assembly 23 and the lower surface is in contact with the upper surface of the spring 10.

10-spring

The upper surface and the lower surface of the spring 10 are respectively contacted with the spring upper top ring 9 and the spring fixing seat 11, and the target disc assembly 2 is supported and bounced during disassembly.

11-spring fixing seat

The inner steps of the spring holders 11 are used for mounting the springs 10, and the outer steps are in contact with the base 8 and assembled together by screws.

12-spring fixing seat fixing screw

The spring holder fixing screw 12 is used for assembling the spring holder 11 with the base 8.

13-dividing plate

The index plate 13 is assembled with the lower part of the base 8, and the 0-degree position corresponds to a cursor observation hole 82 on the base 8 and is used for determining a weight removing angle during weight removing.

14-graduated disk fixing screw

The indexing disk fixing screws 14 are used to assemble the indexing disk 13 and the base 8 together.

This application installation:

1. fixedly assembling a protecting sleeve 7, a base 8, an upper spring top ring 9, a spring 10, a spring fixing seat 11 and an index plate 13 into a base assembly, wherein the protecting sleeve 7 can prevent the surface of a copper sleeve 22 from being scratched when the target plate assembly 2 is placed into a tool; the spring upper top ring 9, the spring 10 and the spring fixing seat 11 can support the target disc assembly 2, so that the target disc assembly is prevented from deforming due to the fact that the target disc assembly 2 is subjected to unilateral force when being locked; the scales on the index plate 13 can enable an operator to accurately find the weight removing angle, and the zero position of the scale is opposite to the cursor position on the copper sleeve 22;

2. the target disc assembly 2 is arranged in a tool, and the graphite surface of the target disc 2 cannot contact with the tool due to the support of the spring acting force;

3. assembling a target disc limiting screw 3, a locking screw 4, a locking block 5 and a locking ring 6 into a locking ring assembly;

4. moving the locking block 5 to the outermost side;

5. sleeving the locking ring assembly into the target disc assembly 2 from the upper part;

6. the locking blocks 5 are symmetrically locked, and the locking ring 6 outwards props against the inner hole of the base 8 while the locking blocks 5 inwards lock the excircle of the target disc, so that the target disc assembly 2, the locking ring assembly and the base 8 are reliably combined into a whole, and the rigidity of the three is ensured during weight removal;

7. the dustproof plug 1 is sleeved into the target plate component 2 and tightly plugged, and the dustproof plug 1 can effectively prevent scrap iron from flying into the inner hole;

8. deduplication is started.

All simple variations and combinations of the technical features and technical solutions of the present application are considered to fall within the scope of the present application.

Claims (7)

1. The utility model provides a CT manages target dish locking protection device, includes target dish subassembly, lag, base, and the lag suit is on the target dish subassembly, characterized by: the target plate assembly is characterized by further comprising a locking block, a locking ring and an elastic supporting assembly, wherein a conical hole of the locking block is matched with an outer conical surface of a locking screw, the locking block is arranged on a concave pit of the locking ring in a sliding connection mode, two side edges of the locking block are matched with the concave pit edge of the locking ring, the locking block is matched with the target plate through a cambered surface, the target plate is fixed on the locking ring through a target plate limiting screw, the elastic supporting assembly is arranged between the bottom of the target plate assembly and the base and supports the target plate assembly, the locking ring is provided with a locking screw.

2. The locking and protecting device for the target disk of the CT tube as claimed in claim 1, wherein: the locking ring is made of an elastic material or has an elastic structure.

3. The locking and protecting device for the target disk of the CT tube as claimed in claim 1 or 2, wherein: when the locking screw is screwed down continuously, the excircle part of the locking ring, which is radially opposite to the locking screw, props against the corresponding part of the base.

4. The locking and protecting device for the target disk of the CT tube as claimed in claim 2, wherein: the elastic structure of the locking ring is a plurality of uniformly distributed grooves which are uniformly distributed along the circumferential direction of the inner side of the locking ring.

5. The locking and protecting device for the target disk of the CT tube as claimed in claim 1 or 2, wherein: the elastic support assembly is composed of an upper spring top ring, a spring and a spring fixing seat, the upper spring top ring is in contact with the target plate assembly, the spring fixing seat is installed on the base, and the spring is arranged between the upper spring top ring and the spring fixing seat and supports the upper spring top ring.

6. The locking and protecting device for the target disk of the CT tube as claimed in claim 1 or 2, wherein: and the dust plug is plugged into the inner hole of the copper sleeve and is attached to the upper surface of the target disc.

7. The locking and protecting device for the target disk of the CT tube as claimed in claim 1 or 2, wherein: the index plate is fixed with the base, and the 0-degree position of the index plate corresponds to the cursor observation hole in the base.

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