CN201189545Y - Prestressed steel strand puller - Google Patents
Prestressed steel strand puller Download PDFInfo
- Publication number
- CN201189545Y CN201189545Y CNU2008200358295U CN200820035829U CN201189545Y CN 201189545 Y CN201189545 Y CN 201189545Y CN U2008200358295 U CNU2008200358295 U CN U2008200358295U CN 200820035829 U CN200820035829 U CN 200820035829U CN 201189545 Y CN201189545 Y CN 201189545Y
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- steel strand
- traction
- traction head
- prestressed steel
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Abstract
本实用新型涉及一种预应力钢绞线牵引头，其特征在于：牵引头和预应力钢绞线固定板，其中，牵引头含有前端圆锥和后端空心圆柱，空心圆柱的内壁是设有内螺纹，圆锥的轴心设有贯通的牵引孔，预应力钢绞线固定板为圆形钢板，圆形钢板上设有与预应力钢绞线相同股数的定位孔，定位孔的孔径与单根钢绞线中的一根钢丝的直径匹配，圆形钢板的外圈设有螺纹，所述的螺纹与牵引头的空心圆柱中的内螺纹匹配。其优点是：由于圆形钢板可以方便地与多股钢绞线墩接后，圆形钢板与牵引头连接结，构紧凑，牵引头上设有一对固定板定位螺栓，可以防止在牵引过程中钢绞线固定板与牵引头分离。
The utility model relates to a traction head of prestressed steel strand, which is characterized in that: the traction head and the fixing plate of prestressed steel strand, wherein, the traction head includes a front cone and a rear hollow cylinder, and the inner wall of the hollow cylinder is provided with an inner Thread, the axis of the cone is provided with a through traction hole, the fixed plate of the prestressed steel strand is a circular steel plate, and the circular steel plate is provided with positioning holes with the same number of strands as the prestressed steel strand, the aperture of the positioning hole is the same as that of a single The diameter of a steel wire in the steel strand is matched, and the outer ring of the circular steel plate is provided with threads, and the threads match the internal threads in the hollow cylinder of the traction head. Its advantages are: because the round steel plate can be conveniently piered with multi-strand steel strands, the round steel plate is connected with the traction head, and the structure is compact. There is a pair of fixing plate positioning bolts on the traction head, which can prevent the The steel strand fixing plate is separated from the pulling head.
Description
技术领域 technical field
本实用新型涉及一种在钢管内穿引高强度低松弛预应力钢绞线的专用工具，尤其是一种穿引高强度低松弛预应力钢绞线的牵引头。The utility model relates to a special tool for threading high-strength and low-relaxation prestressed steel strands in steel pipes, in particular to a traction head for threading high-strength and low-relaxation prestressed steel strands.
背景技术 Background technique
目前，在数十米距离内的钢管内穿引高强度低松弛预应力钢绞线一般由人工直接穿引，尤其对于多股多根预应力钢绞线，穿引比较费力，对于数百米的超长钢管内穿引高强度低松弛预应力钢绞线，仅依靠人工穿引一般很难实现。At present, the threading of high-strength and low-relaxation prestressed steel strands in steel pipes within a distance of tens of meters is generally directly threaded manually, especially for multiple prestressed steel strands, the threading is laborious, and for hundreds of meters It is generally difficult to thread high-strength and low-relaxation prestressed steel strands in ultra-long steel pipes only by manual threading.
发明内容 Contents of the invention
本实用新型的目的在于：针对目前在钢管内穿引，尤其是在长距离的钢管内穿引高强度低松弛预应力钢绞线人工无法实现的实际问题，提供一种依靠卷扬机牵引的专用预应力钢绞线牵引头。The purpose of this utility model is to provide a special prestressed steel strand that relies on hoist traction to solve the practical problem that the current threading of steel pipes, especially the threading of high-strength and low-relaxation prestressed steel strands in long-distance steel pipes cannot be realized manually. Stressed strand puller.
本实用新型的目的是这样实现的：一种预应力钢绞线牵引头，其特征在于：牵引头和预应力钢绞线固定板，其中，牵引头含有前端圆锥和后端空心圆柱，空心圆柱的内壁是设有内螺纹，圆锥的轴心设有贯通的牵引孔，预应力钢绞线固定板为圆形钢板，圆形钢板上设有与预应力钢绞线相同股数的定位孔，定位孔的孔径与单根钢绞线中的一根钢丝的直径匹配，圆形钢板的外圈设有螺纹，所述的螺纹与牵引头的空心圆柱中的内螺纹匹配。The purpose of this utility model is achieved in this way: a prestressed steel strand traction head, characterized in that: the traction head and the prestressed steel strand fixing plate, wherein the traction head contains a front cone and a rear hollow cylinder, the hollow cylinder The inner wall is provided with internal threads, the axis of the cone is provided with a through traction hole, the prestressed steel strand fixing plate is a circular steel plate, and the circular steel plate is provided with positioning holes with the same number of strands as the prestressed steel strand. The aperture of the positioning hole matches the diameter of a steel wire in a single steel strand, and the outer ring of the circular steel plate is provided with threads, and the threads match the internal threads of the hollow cylinder of the traction head.
在本实用新型中：预应力钢绞线固定板的厚度为35mm。In the utility model: the thickness of the prestressed steel strand fixed plate is 35mm.
在本实用新型中：牵引头上设有一对固定板定位螺栓，所述的一对固定板定位螺栓相对设置在空心圆柱尾部。In the utility model: a pair of fixing plate positioning bolts is arranged on the traction head, and the pair of fixing plate positioning bolts are relatively arranged at the tail of the hollow cylinder.
本实用新型的优点在于：由于圆形钢板上设有与预应力钢绞线相同股数的定位孔，定位孔的孔径与单根钢绞线中的一根钢丝的直径匹配，可以方便地将多股钢绞线与圆形钢板墩接；由于圆形钢板的外螺纹与牵引头后端空心圆柱的内螺纹匹配，可以使与圆形钢板墩接的多股钢绞线与牵引头固定连接；由于牵引头的前端圆锥设有牵引孔，牵引索可以穿过牵引孔由卷扬机牵引；牵引头上设有一对固定板定位螺栓，可以防止在牵引过程中钢绞线固定板与牵引头分离。The utility model has the advantages that: since the circular steel plate is provided with positioning holes with the same number of strands as the prestressed steel strand, the aperture of the positioning hole matches the diameter of a steel wire in a single steel strand, and the The multi-strand steel strands are piered with the circular steel plate; because the external thread of the circular steel plate matches the internal thread of the hollow cylinder at the rear end of the traction head, the multi-strand steel strand piered with the circular steel plate can be fixedly connected with the traction head ;Because the front cone of the traction head is provided with a traction hole, the traction cable can pass through the traction hole and be pulled by the hoist; a pair of fixing plate positioning bolts are arranged on the traction head, which can prevent the steel strand fixing plate from being separated from the traction head during the traction process.
附图说明 Description of drawings
图1是本实用新型实施例的结构示意图。Fig. 1 is a schematic structural view of an embodiment of the utility model.
图中、1、牵引头，2、预应力钢绞线固定板，3、定位孔，4、牵引孔，5、固定板定位螺栓。Among the figure, 1, traction head, 2, prestressed steel strand fixed plate, 3, positioning hole, 4, traction hole, 5, fixed plate positioning bolt.
具体实施方式 Detailed ways
附图非限制性地公开了本实用新型实施例的具体结构，下面结合附图对本实用新型作进一步地描述。The accompanying drawings disclose the specific structure of the embodiment of the utility model without limitation, and the utility model will be further described below in conjunction with the accompanying drawings.
由图1图2可见，牵引头1含有前端圆锥和后端空心圆柱，圆锥的轴心设有贯通的牵引孔4，空心圆柱的内壁是设有内螺纹；预应力钢绞线固定板2为圆形钢板，圆形钢板上设有与预应力钢绞线相同股数的定位孔3，定位孔3的孔径与单根钢绞线中的一根钢丝的直径匹配，圆形钢板的外圈设有螺纹，所述的螺纹与牵引头1的空心圆柱中的内螺纹匹配。在本实施例中，预应力钢绞线固定板2的厚度为35mm，同时在牵引头1上还设有一对固定板定位螺栓5，所述的一对固定板定位螺栓5相对设置在空心圆柱尾部。It can be seen from Fig. 1 and Fig. 2 that the traction head 1 includes a front cone and a rear hollow cylinder, the axis of the cone is provided with a through
使用时，将钢绞线各股中的一根处于中心的钢丝穿入预应力钢绞线固定板2上对应的定位孔3墩接，将牵引索端部由牵引头1的前端穿入牵引孔4并用定位锚夹具夹持定位(由于定位锚夹具的体积大于牵引孔4，牵引索端部将无法退出)，然后将墩接后的预应力钢绞线固定板2与牵引头1后端的空心圆柱通过匹配的螺纹和内螺纹连接，为了防止在牵引过程中预应力钢绞线固定板2与牵引头1分离，在螺纹与内螺纹旋接到位后，再旋紧固定板定位螺栓5。最后再由卷扬机带动引索端完成在钢管内穿引高强度低松弛预应力钢绞线。When in use, a steel wire in the center of each strand of the steel strand is inserted into the
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200358295U CN201189545Y (en) | 2008-05-19 | 2008-05-19 | Prestressed steel strand puller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200358295U CN201189545Y (en) | 2008-05-19 | 2008-05-19 | Prestressed steel strand puller |
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| Publication Number | Publication Date |
|---|---|
| CN201189545Y true CN201189545Y (en) | 2009-02-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200358295U Expired - Lifetime CN201189545Y (en) | 2008-05-19 | 2008-05-19 | Prestressed steel strand puller |
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| CN (1) | CN201189545Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952976A (en) * | 2014-04-01 | 2014-07-30 | 中国建筑第六工程局有限公司 | Pre-stress pipeline dredging device as well as a manufacturing and application method thereof |
| CN108643579A (en) * | 2018-04-11 | 2018-10-12 | 中国核工业华兴建设有限公司 | A kind of prestress wire lashing anticreep guider and its application method |
-
2008
- 2008-05-19 CN CNU2008200358295U patent/CN201189545Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103952976A (en) * | 2014-04-01 | 2014-07-30 | 中国建筑第六工程局有限公司 | Pre-stress pipeline dredging device as well as a manufacturing and application method thereof |
| CN108643579A (en) * | 2018-04-11 | 2018-10-12 | 中国核工业华兴建设有限公司 | A kind of prestress wire lashing anticreep guider and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION CO. Free format text: FORMER OWNER: THE THIRD CONSTRUCTION CO., LTD. OF CHINA CONSTRUCTION EIGHTH BUREAU Effective date: 20130208 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 210046 NANJING, JIANGSU PROVINCE TO: 200122 PUDONG NEW AREA, SHANGHAI |
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| TR01 | Transfer of patent right |
Effective date of registration: 20130208 Address after: 200122 Pudong New Area Century Avenue, Shanghai, No. 27, layer 1568 Patentee after: China Construction Eighth Engineering Division Co., Ltd. Address before: Nanjing City, Jiangsu province 210046 Yao new Yao Road No. 18 Patentee before: The Third Construction Co., Ltd. of China Construction Eighth Bureau |
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| CX01 | Expiry of patent term |
Granted publication date: 20090204 |
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| CX01 | Expiry of patent term |