CN204387136U - The linkage structure of axle core lengthened tail part bar - Google Patents
The linkage structure of axle core lengthened tail part bar Download PDFInfo
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- CN204387136U CN204387136U CN201420857912.6U CN201420857912U CN204387136U CN 204387136 U CN204387136 U CN 204387136U CN 201420857912 U CN201420857912 U CN 201420857912U CN 204387136 U CN204387136 U CN 204387136U
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- extension bar
- axle core
- gland
- axle
- core
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Abstract
The linkage structure of axle core lengthened tail part bar, axle core, extension bar, lock screw, gland; Described extension bar, is bolted in the upper end of axle core, and the lower end of this extension bar has the load segment of cross-under at axle in-core; Described gland is positioned at bottom extension bar; Described lock screw is connected in extension bar and its bottom is bolted on gland; Be installed on the expansion connector between axle in-core wall and load segment outer side surface, the upper end of this expansion connector is connected to extension bar, lower end is connected to gland.When turning lock screw, gland constantly moves upward, axially extrusion expansion link, allows expansion connector produce radial deformation, thus provides extrusion stress to load segment outer side surface and axle in-core wall.Realize extension bar by above-mentioned means to be firmly attached on axle core, effectively prevent the situation generation that extension bar union piece easily unclamps.The utility model has to be implemented easily, advantage with low cost.
Description
Technical field
What the utility model related to a kind of machinery processing main shaft axle core sets up part, particularly a kind of linkage structure of axle core lengthened tail part bar.
Background technique
The axle core of high speed direct-connected main shaft is hollow, and inside will be used for assembling rod assembly, is often subject to the restriction of the maximum cylindrical of rod assembly, adds that axle core has certain wall thickness, and the outer fenestra of axle core afterbody has the dimensions.These situations above-mentioned all can form inconvenience to the Assembly of the parts needing to be attached on axle core, the component fixed of standardization hole size more, and hole size is less than axle core afterbody cylindrical, and now these component then directly can not be assembled to the outside cylindrical of axle core.General way adds an extension bar at axle core afterbody, and the cylindrical of this extension bar is less than axle core afterbody cylindrical, just can continue to assemble some annexes like this at axle core afterbody.But, extension bar or other add elongated workpieces and need to be assemblied on the main shaft axle core of High Rotation Speed, extension bar must be considered or add the Placement of elongated workpieces.The defects such as the connection effect of prior art is unsatisfactory, and often there will be and connect effect not firmly, under the vibration of certain frequency, union piece easily unclamps, and linkage structure is complicated.
Model utility content
The utility model provides a kind of linkage structure of axle core lengthened tail part bar, overcomes the problem that connection effect is insecure, linkage structure is too complicated of prior art axis core extension bar or extension bar.
For achieving the above object, the utility model adopts following technological scheme:
A linkage structure for axle core lengthened tail part bar, comprising:
Axle core;
Extension bar, is bolted in the upper end of axle core, and the lower end of this extension bar has the load segment of cross-under at axle in-core;
Be positioned at the gland bottom extension bar;
To be connected in extension bar and bottom is bolted in the lock screw on gland;
Be installed on the expansion connector between axle in-core wall and load segment outer side surface, the upper end of expansion connector is connected to extension bar, lower end is connected to gland.
The linkage structure of described axle core lengthened tail part bar also has multiple mounting screw, and the side of this extension bar arranges a disk, and mounting screw is through described disk and be bolted in the installation screw that axle core upper end has.
The middle part of described gland has boss upwards, has the groove of the described boss of an accommodation in the middle part of described load segment bottom surface.
Form an incline between described groove and the cylindrical of load segment, there is between described boss and the edge of gland the escape groove dodging this incline.
Described expansion connector is divided into the first expansion sleeve and the second expansion sleeve, the downside of the first expansion sleeve is socketed in load segment outer side surface, second expansion sleeve is socketed in the first expansion sleeve outer side surface, first expansion sleeve outer side surface is corrugated first fitting surface, and the second expansion sleeve inner side surface is waveform second fitting surface coordinated with the first fitting surface.
Compared to prior art, the beneficial effects of the utility model are:
The utility model provides a kind of linkage structure of axle core lengthened tail part bar, utilize the collaborative work of mounting screw, lock screw, expansion connector, producing makes axle core lengthened tail part bar be firmly attached to the effect of axle core, effectively prevent the situation generation that extension bar union piece easily unclamps.The utility model has to be implemented easily, and structure is simple, advantage with low cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical solution of the utility model, below accompanying drawing combination technology scheme required in describing embodiment is described.
Fig. 1 is the utility model embodiment overall schematic;
Fig. 2 is Figure 1A place partial enlarged drawing;
Fig. 3 is the single part schematic diagram of the utility model extension bar;
Fig. 4 is the single part schematic diagram of the utility model gland.
Reference character: 1, axle core; 20, extension bar; 200, lock screw; 201, locking screw holes; 21, disk; 210, mounting screw; 211, installation screw; 22, groove; 30, gland; 31, escape groove; 40, expansion connector; 41, the first expansion sleeve; 42, the second expansion sleeve.
Embodiment
Below with reference to embodiment and accompanying drawing, the utility model is further described:
As shown in Figure 1, the linkage structure of axle core lengthened tail part bar, comprise: if axle core 1, extension bar 20, gland 30, expansion connector 40, multiple mounting screw 210, multiple lock screw 200 needs install extension bar 20 at axle core 1 afterbody, first axle core 1 must be hollow and can hold extension bar 20 and have the relevant position accepting other mounting parts; This extension bar 20 is bolted in axle core 1 upper end, so, extension bar 20 can be made tentatively can be fixed on axle core 1 upper end.The lower end of extension bar 20 has the load segment of cross-under in axle core 1, and gland 30 is connected by some lock screws 200 with the bottom of the load segment of extension bar 20.Particularly, allow lock screw 200 be connected to the through hole running through extension bar 20 from top to bottom, and be spirally connected with the locking screw holes 201 of gland 30; Described expansion connector 40, is arranged on the space place between axle core 1 inwall, load segment outer side surface.During use, turn lock screw 200, the upper and lower surface of expansion connector 40 is squeezed, and expansion connector 40 produces deformation, to axle core 1 sidewall and the extruding of load segment outer side surface, serves the effect be fixedly connected with.
Preferably, disk 21 can be set in the side of this extension bar 20, the lower end surface of disk 21 is bolted in axle core 1 upper end, this disk 21 has the hole allowing mounting screw 210 pass, this axle core 1 upper end has the installation screw 211 coordinated with mounting screw 210, and mounting screw 210 is screwed onto installation screw 211 again through disk 21.
As shown in Figure 2, in order to allow gland 30 can accurate contraposition and to make lock screw bottom be bolted in gland 30 more firm when moving upward, the middle part of this gland 30 has boss upwards, has the groove 22 of an accommodation boss in the middle part of this load segment bottom surface.
As shown in Figure 3, Figure 4, in order to the effect allowing expansion connector 40 be extruded is better, can be designed as, there is between the edge of gland 30 and boss an escape groove 31; This escape groove 31 is to dodge load segment bottom surface incline, allows gland 30 have the surplus more moved upward.Like this, the extrusion and displacement that space, expansion connector 40 place is subject to will be more obvious, and radial deformation thereupon also can be larger, provides larger extruding force, in conjunction with more firm to axle core 1 inwall and load segment outer side surface.
As shown in Figure 2, more firm in order to make expansion connector 40 connect effect again, if expansion connector 40 to be divided into the first expansion sleeve 41 and the second expansion sleeve 42, then the first expansion sleeve 41 outer side surface is corrugated first fitting surface, and described second expansion sleeve 42 inner side surface is waveform second fitting surface coordinated with the first fitting surface.
If adopt the scheme of the first expansion sleeve 41 and the second expansion sleeve 42, when turning lock screw 200, the first expansion sleeve 41 keeps static, and the second expansion sleeve 42 is subject to the extruding of gland 30, and the first expansion sleeve 41 and the second expansion sleeve 42 produce axial relative displacement.But under the effect of both waveform fitting surfaces, first expansion sleeve 41, the radial direction that produces second expansion sleeve 42 staggers displacement, and gland is when more than 30 up moving, the displacement that first expansion sleeve 41 and the second expansion sleeve 42 radial direction stagger is larger, make the compression dynamics between extension bar 20 and axle core 1 larger, finally make extension bar 20 be firmly fixed at axle core 1.
The operating process of the technical program:
The first step, is first enclosed within the side of department of assembly by described expansion connector 40, the position that its upper end moves upward with extension bar 20 confined expansion link 40 gently contacts; Then allow gland 30 be pre-installed on the lower end of extension bar 20, particularly, first allow cross-under be screwed into the locking screw holes 201 of gland 30 at lock screw 200 fraction of extension bar 20 through hole, to be threaded into till gland 30 gently contacts with the lower end of expansion connector 40.
Second step, is assemblied in axle core 1 upper end, particularly, when extension bar 20 is inserted to axle core 1 upper end by the extension bar 20 of band gland 30 and expansion connector 40.With mounting screw 210 first by extension bar 20 with couple together in axle core 1.
3rd step, turns lock screw 200, allows gland 30 constantly move up, till lock screw 200 can not rotate.Now, expansion connector 40 upper and lower end receives extension bar 20 gland 30 applied pressure, constantly produces expansion deformation to the outer side surface of axle core 1 inwall and load segment.
Extension bar 20 and axle core 1 just can be realized to link together securely by above-mentioned three steps.
To one skilled in the art, according to technological scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.
Claims (5)
1. the linkage structure of axle core lengthened tail part bar, is characterized in that: comprise,
Axle core;
Extension bar, is bolted in the upper end of axle core, and the lower end of this extension bar has the load segment of cross-under at axle in-core;
Be positioned at the gland bottom extension bar;
To be connected in extension bar and bottom is bolted in the lock screw on gland;
Be installed on the expansion connector between axle in-core wall and load segment outer side surface, the upper end of expansion connector is connected to extension bar, lower end is connected to gland.
2. the linkage structure of axle core lengthened tail part bar according to claim 1, it is characterized in that: this linkage structure also has multiple mounting screw, the side of this extension bar arranges a disk, and mounting screw is through described disk and be bolted in the installation screw that axle core upper end has.
3. the linkage structure of axle core lengthened tail part bar according to claim 2, is characterized in that: the middle part of described gland has boss upwards, has the groove of the described boss of an accommodation in the middle part of described load segment bottom surface.
4. the linkage structure of axle core lengthened tail part bar according to claim 3, is characterized in that: form an incline between described groove and the cylindrical of load segment, has the escape groove dodging this incline between described boss and the edge of gland.
5. the linkage structure of the axle core lengthened tail part bar according to claim 1-4 any one, it is characterized in that: expansion connector is divided into the first expansion sleeve and the second expansion sleeve, the downside of the first expansion sleeve is socketed in load segment outer side surface, second expansion sleeve is socketed in the first expansion sleeve outer side surface, first expansion sleeve outer side surface is corrugated first fitting surface, and the second expansion sleeve inner side surface is waveform second fitting surface coordinated with the first fitting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857912.6U CN204387136U (en) | 2014-12-26 | 2014-12-26 | The linkage structure of axle core lengthened tail part bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857912.6U CN204387136U (en) | 2014-12-26 | 2014-12-26 | The linkage structure of axle core lengthened tail part bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387136U true CN204387136U (en) | 2015-06-10 |
Family
ID=53359859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420857912.6U Active CN204387136U (en) | 2014-12-26 | 2014-12-26 | The linkage structure of axle core lengthened tail part bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387136U (en) |
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2014
- 2014-12-26 CN CN201420857912.6U patent/CN204387136U/en active Active
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|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |