CN202991075U - Combined anchor stock support - Google Patents
Combined anchor stock support Download PDFInfo
- Publication number
- CN202991075U CN202991075U CN 201220498207 CN201220498207U CN202991075U CN 202991075 U CN202991075 U CN 202991075U CN 201220498207 CN201220498207 CN 201220498207 CN 201220498207 U CN201220498207 U CN 201220498207U CN 202991075 U CN202991075 U CN 202991075U
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- China
- Prior art keywords
- anchor pole
- stress
- spherical ball
- ball pad
- hole
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model provides a combined anchor stock support. A self-aligning ball pad is arranged below an arc-shaped tray of the anchor stock support, a central rotating part is arranged on the upper portion of the self-aligning ball pad, and an inner rotating face of the central rotating part and an outer rotating face of the circular arc part are arranged in a matching mode. The self-locking phenomenon caused by the stress on the self-aligning ball pad is prevented effectively due to design of matching of the inner rotating face of the central rotating part and an outer rotating face of the circular arc part, wherein the stress is produced by recurvation of a steel belt.
Description
Technical field
The utility model relates to a kind of assembled bolt support, relates in particular to a kind of prevented spherical ball pad that is applied to the coal mine down-hole tunnel support system and produces the anchor pole support of self-locking.
Background technology
At present, adopting bolt support technology is the modal support form of China's coal-mine underworkings.And the anchor pole support is that in bolt support technology, institute is indispensable; Be present the most frequently used anchor pole supporting structure in Fig. 1, this anchor pole support has a high strength arch pallet 101, is provided with steel band 102 on this arch pallet, and this steel band is provided with bolthole 103, is provided with anchor pole 104 in this bolthole; Described arch tray bottom is provided with center center steering parts 105 with holes, in these center steering parts, spherical ball pad 106 is installed, and the interior surface of revolution of described center steering parts matches with the outer surface of revolution of described spherical ball pad; Described spherical ball pad is provided with through hole 107 along the anchor pole centerline direction, and described spherical ball pad installs by through hole and described anchor pole, is provided with one in described spherical ball pad lower end and tunes nut 108, and this tunes nut and is connected with described spiral thread on anchor bolt; Described anchor pole and described steel band are vertical setting, described center steering parts, through hole all with the concentricity line setting of described anchor pole.Adopt the anchor pole support of said structure to play good support action to underworkings; But the anchor pole support shortcoming of this kind structure is also quite obvious; When major embodiment bears pressure for a long time for the steel band when anchor pole both sides, can produce under distortion to a certain degree curved, force the anchor pole support of steel band lower end to the center steering parts extruding of its bottom, the stress that extruding produces conducts to the outer surface of revolution of spherical ball pad by the interior surface of revolution, and by the centerline direction conduction of spherical ball pad to anchor trend; Finally causing the spherical ball pad to be stuck between the center steering parts of anchor pole support and anchor pole can't rotate, namely usually said locking phenomenon; The spherical ball pad has lost immediately it and has adjusted the stressed effect in anchor pole bottom of the gentle solution of anchor pole position of center line; Simultaneously, at anchor trend, therefore easily cause the screw thread of anchor trend damaged due to the stress undue concentration that produces of extruding, directly cause what is more the anchor pole fracture, greatly reduce the application life of anchor pole support.
Therefore, for above deficiency, the utility model is badly in need of providing a kind of new assembled bolt support.
Summary of the invention
The purpose of this utility model is to provide a kind of assembled bolt support, and this assembled bolt support can play and prevent that the spherical ball pad from losing its aligning because of the generation self-locking and the alleviation anchor pole is concentrated stressed effect.
The purpose of this utility model is achieved through the following technical solutions: a kind of assembled bolt support, and this anchor pole support has an arch pallet, is provided with steel band on this arch pallet, and this steel band is provided with bolthole, is provided with anchor pole in this bolthole; The dome of described arch pallet is provided with the stress through hole along described anchor pole centerline direction, and described arch pallet installs by stress through hole and described anchor pole; Be provided with the spherical ball pad below described arch pallet, be provided with the center steering parts on this spherical ball pad top, the setting that matches with the outer surface of revolution of described dome of the interior surface of revolution of described center steering parts; Described spherical ball pad is provided with the aligning through hole along described anchor pole centerline direction, and described spherical ball pad installs by aligning through hole and described anchor pole, and described spherical ball pad lower end is provided with one and tunes nut, and this tunes nut and is connected with described spiral thread on anchor bolt.
Be provided with the stress buffer gap between described arch pallet and described anchor pole.
The aperture, lower end of described stress through hole is greater than the aperture, upper end.
Described aligning through hole and described anchor pole are the matched in clearance setting.
The bottom face of described spherical ball pad becomes to be horizontally disposed with.
Described steel band is the w steel band of model.
Be provided with packing ring between the rebasing end face of described spherical ball and aligning nut.
The utility model compared with prior art has advantages of following:
1, the utility model adopts the design that the interior surface of revolution of described center steering parts matches with the outer surface of revolution of described dome and arranges, make described spherical ball pad be placed in outside described arch pallet, the effect of stress that can effectively prevent curved generation under the invar band is on the spherical ball pad and make it produce the appearance of locking phenomenon; Make the spherical ball pad relative to rotating freely, well to be guaranteed thereby make the spherical ball pad adjust the gentle stressed function in anchor pole bottom of separating of anchor pole position of center line.
2, the utility model adopts and be provided with the design in stress buffer gap between described arch pallet and described anchor pole, when steel band is bent downwardly by stress, described anchor pole support is subject to stress, the hole wall that forces described stress through hole pushes to the anchor pole centerline along the interior surface of revolution of described center steering parts, this stress buffer gap can be because the hole wall that is subjected to stress to produce deformation displacement provides more large deformation deflection yoke, effectively avoids the hole wall of stress through hole to contact with anchor pole in extrusion process; Therefore, the stress that extruding produces can not conduct on anchor pole, thereby effectively avoids stress to concentrate on anchor pole and the appearance of the phenomenons such as the spiral thread on anchor bolt breakage that causes and anchor pole fracture, in the application life of greatly having improved the assembled bolt support, has saved construction cost.
3, the utility model adopts aperture, described stress through hole lower end greater than the design in aperture, upper end, and the hole wall of described stress through hole and described anchor pole center line are tilted at an angle; Can guarantee that its deformation angle is larger when the hole wall of stress through hole produces distortion under effect of stress; The hole wall that can be described stress through hole provides more large deformation deflection yoke, further avoids the hole wall of stress through hole to contact with anchor pole in extrusion process; Therefore, the stress that extruding produces can not conduct on anchor pole, thereby effectively avoids stress to concentrate on anchor pole and the appearance of the phenomenons such as the spiral thread on anchor bolt breakage that causes and anchor pole fracture, in the application life of greatly having improved the assembled bolt support, has saved construction cost.
Description of drawings
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the anchor pole supporting structure schematic diagram (sectional view) of prior art;
Fig. 2 is the structural representation (sectional view) of the utility model embodiment one;
Fig. 3 is the structural representation (top view) of the utility model embodiment one;
Fig. 4 is the structural representation (sectional view) of the utility model embodiment two.
The specific embodiment
Embodiment one:
Referring to Fig. 2, shown in Figure 3, a kind of assembled bolt support of the present utility model, this anchor pole support has an arch pallet 1, is provided with steel band 2 on this arch pallet, and steel band described in the present embodiment adopts the w steel band of model; The steel band of telling is provided with bolthole 3, is provided with anchor pole 4 in this bolthole, and bolthole described in the present embodiment arranges along described anchor pole centerline direction; The dome 5 of described arch pallet is provided with stress through hole 6 along described anchor pole centerline direction, and described arch pallet installs by stress through hole and described anchor pole; Be provided with spherical ball pad 7 below described arch pallet, be provided with center steering parts 8 on this spherical ball pad top, the setting that matches with the outer surface of revolution 10 of described dome of the interior surface of revolution 9 of described center steering parts; The bottom face of described spherical ball pad becomes to be horizontally disposed with, and this spherical ball pad is provided with aligning through hole 11 along described anchor pole centerline direction, and described spherical ball pad installs by aligning through hole and described anchor pole, and described aligning through hole and described anchor pole are the matched in clearance setting; Described spherical ball pad lower end is provided with one and tunes nut 12, and this tunes nut and is connected with described spiral thread on anchor bolt; Be provided with packing ring 13 between the rebasing end face of described spherical ball and aligning nut.
The design that the present embodiment adopts the interior surface of revolution of described center steering parts to match with the outer surface of revolution of described dome and arrange, make described spherical ball pad be placed in outside described arch pallet, the effect of stress that can effectively prevent curved generation under the invar band is on the spherical ball pad and make it produce the appearance of locking phenomenon; Make the spherical ball pad relative to rotating freely, well to be guaranteed thereby make the spherical ball pad adjust the gentle stressed function in anchor pole bottom of separating of anchor pole position of center line.
The present embodiment is provided with the stress buffer gap between described arch pallet and described anchor pole, this stress buffer gap width is chosen arbitrarily according to real work.The utility model adopts and be provided with the design in stress buffer gap between described arch pallet and described anchor pole, when steel band is bent downwardly by stress, described anchor pole support is subject to stress, the hole wall that forces described stress through hole pushes to the anchor pole centerline along the interior surface of revolution of described center steering parts, this stress buffer gap can be because the hole wall that is subjected to stress to produce deformation displacement provides more large deformation deflection yoke, effectively avoids the hole wall of stress through hole to contact with anchor pole in extrusion process; Therefore, the stress that extruding produces can not conduct on anchor pole, thereby effectively avoids stress to concentrate on anchor pole and the appearance of the phenomenons such as the spiral thread on anchor bolt breakage that causes and anchor pole fracture, in the application life of greatly having improved the assembled bolt support, has saved construction cost.
W steel band of model described in the present embodiment, bolthole, anchor pole, tune nuts and washers and be techniques well known; Specification, model about above-mentioned each parts are no longer too much given unnecessary details in the present embodiment.
Embodiment two:
Assembled bolt support in the present embodiment is the improvement on embodiment one basis, and in embodiment one, disclosed technology contents is not repeated in this description, and the disclosed content of embodiment one also belongs to the disclosed content of the present embodiment.
Shown in Figure 4, the aperture, lower end of described stress through hole is greater than the aperture, upper end in the present embodiment; Hole wall 14 and the described anchor pole center line of described stress through hole tilt at an angle.This design can guarantee that its deformation angle is larger when the hole wall of stress through hole produces distortion under effect of stress; The hole wall that can be described stress through hole provides more large deformation deflection yoke, further avoids the hole wall of stress through hole to contact with anchor pole in extrusion process; Therefore, the stress that extruding produces can not conduct on anchor pole, thereby effectively avoids stress to concentrate on anchor pole and the appearance of the phenomenons such as the spiral thread on anchor bolt breakage that causes and anchor pole fracture, in the application life of greatly having improved the assembled bolt support, has saved construction cost.
Claims (6)
1. assembled bolt support, this anchor pole support has an arch pallet, is provided with steel band on this arch pallet, and this steel band is provided with bolthole, is provided with anchor pole in this bolthole; It is characterized in that: the dome of described arch pallet is provided with the stress through hole along described anchor pole centerline direction, and described arch pallet installs by stress through hole and described anchor pole; Be provided with the spherical ball pad below described arch pallet, be provided with the center steering parts on this spherical ball pad top, the setting that matches with the outer surface of revolution of described dome of the interior surface of revolution of described center steering parts; Described spherical ball pad is provided with the aligning through hole along described anchor pole centerline direction, described spherical ball pad installs by aligning through hole and described anchor pole, described aligning through hole and described anchor pole are the matched in clearance setting, described spherical ball pad lower end is provided with one and tunes nut, and this tunes nut and is connected with described spiral thread on anchor bolt.
2. assembled bolt support according to claim 1 is characterized in that: be provided with the stress buffer gap between described arch pallet and described anchor pole.
3. assembled bolt support according to claim 2, it is characterized in that: the aperture, lower end of described stress through hole is greater than the aperture, upper end.
4. assembled bolt support according to claim 3 is characterized in that: the bottom face of described spherical ball pad becomes to be horizontally disposed with.
5. assembled bolt support according to claim 4, it is characterized in that: described steel band is the w steel band of model.
6. assembled bolt support according to claim 5, is characterized in that: be provided with packing ring between the rebasing end face of described spherical ball and aligning nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220498207 CN202991075U (en) | 2012-09-26 | 2012-09-26 | Combined anchor stock support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220498207 CN202991075U (en) | 2012-09-26 | 2012-09-26 | Combined anchor stock support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202991075U true CN202991075U (en) | 2013-06-12 |
Family
ID=48562265
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220498207 Expired - Fee Related CN202991075U (en) | 2012-09-26 | 2012-09-26 | Combined anchor stock support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202991075U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545919A (en) * | 2016-01-04 | 2016-05-04 | 中国核工业华兴建设有限公司 | Integral nut gasket fastener |
| CN113137258A (en) * | 2021-05-08 | 2021-07-20 | 平安开诚智能安全装备有限责任公司 | Anchor rod antifriction self-aligning bearing mechanism |
-
2012
- 2012-09-26 CN CN 201220498207 patent/CN202991075U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105545919A (en) * | 2016-01-04 | 2016-05-04 | 中国核工业华兴建设有限公司 | Integral nut gasket fastener |
| CN113137258A (en) * | 2021-05-08 | 2021-07-20 | 平安开诚智能安全装备有限责任公司 | Anchor rod antifriction self-aligning bearing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20130926 |