CN210426393U - A composite anchor cable dynamometer alignment device - Google Patents
A composite anchor cable dynamometer alignment device Download PDFInfo
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- CN210426393U CN210426393U CN201921571398.9U CN201921571398U CN210426393U CN 210426393 U CN210426393 U CN 210426393U CN 201921571398 U CN201921571398 U CN 201921571398U CN 210426393 U CN210426393 U CN 210426393U
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Abstract
本实用新型涉及一种复合型锚索测力计对中装置，属于岩土工程监测技术领域。该装置包括承压对中套筒、锚索测力计、锚具、张拉千斤顶、磁性基座、位移百分表，承压对中套筒的A端接头套设在锚索测力计的外壁，承压对中套筒的B端接头套设在锚具的外壁，张拉千斤顶套设在锚具外侧，张拉千斤顶的端头设置千斤顶锚板，承压对中套筒的外壁对称铰接设置有连接杆，连接杆的端头铰接设置有伸长件，伸长件与张拉千斤顶的轴线平行，位移百分表通过磁性基座设置在伸长件上，锚索依次穿过锚索测力计、承压对中套筒、锚具和张拉千斤顶，位移百分表的测量杆与锚索平行且位移百分表的测量探头与千斤顶锚板接触。该装置提高监测工作的效率及监测数据的准确性。
The utility model relates to a composite anchor cable dynamometer centering device, which belongs to the technical field of geotechnical engineering monitoring. The device includes a pressure-bearing centering sleeve, an anchor cable dynamometer, an anchor, a tension jack, a magnetic base, and a displacement dial indicator. The A-end joint of the pressure-bearing centering sleeve is sleeved on the anchor cable dynamometer. The B-end joint of the pressure-bearing centering sleeve is sleeved on the outer wall of the anchor, the tensioning jack is sleeved on the outside of the anchor, and the end of the tensioning jack is provided with a jack anchor plate, and the outer wall of the pressure-bearing centering sleeve Symmetrically hinged with a connecting rod, the end of the connecting rod is hinged with an extension piece, the extension piece is parallel to the axis of the tension jack, the displacement dial indicator is set on the extension piece through the magnetic base, and the anchor cables pass through in turn Anchor cable dynamometer, pressure centering sleeve, anchor and tension jack, the measuring rod of the displacement dial indicator is parallel to the anchor cable and the measuring probe of the displacement dial indicator is in contact with the jack anchor plate. The device improves the efficiency of monitoring work and the accuracy of monitoring data.
Description
Technical Field
The utility model relates to a compound anchor rope dynamometer centering device belongs to geotechnical engineering monitoring technology field.
Background
The anchoring technology of the prestressed anchor cable is basically mature, and the prestressed anchor cable is widely applied to geotechnical reinforcement engineering at present. Aiming at the stability evaluation of the rock-soil body supported by the prestressed anchor cable, the change of anchoring load is observed by generally installing an anchor cable dynamometer at present, and the stability of the rock-soil body is indirectly reflected.
However, the field installation work of the traditional anchor cable dynamometer faces a plurality of problems, for example, when the anchor cable is singly pre-tightened, the anchor cable dynamometer and an anchorage device have sudden dislocation, and the problem of bias load is very obvious; in the tensioning process, the temporary attachment platform of the displacement dial indicator is difficult to find, and the problems can generate larger errors on measured data, bring inconvenience to measurement and influence the working efficiency.
SUMMERY OF THE UTILITY MODEL
Aiming at the technical problems faced by the field installation work of the existing anchor cable dynamometer, the utility model provides a composite anchor cable dynamometer centering device, which can ensure the centering requirements of the force measurement installation of the anchor cable and the pre-tightening of a single anchor cable, ensure the load to be uniformly transmitted to the anchor cable dynamometer and improve the accuracy of the anchoring force monitoring; meanwhile, displacement measurement assistance work can be simultaneously carried out when the anchor cable is tensioned, a temporary attachment platform is built for the displacement measurement device, and the problems that a displacement dial indicator has no reliable foot-falling point, an over-range and the like are solved; the efficiency of anchor rope dynamometer installation work and the accuracy of survey value are improved.
The utility model discloses a solve its technical problem and the technical scheme who adopts is:
a composite anchor cable dynamometer centering device comprises a pressure-bearing centering sleeve 1, an anchor cable dynamometer 10, an anchorage 12 and a tension jack 5, the anchor cable tensioning device comprises a magnetic base 14 and a displacement dial indicator 15, wherein an A end connector 6 of a pressure-bearing centering sleeve 1 is sleeved on the outer wall of an anchor cable dynamometer 10, a B end connector 8 of the pressure-bearing centering sleeve 1 is sleeved on the outer wall of an anchor 12, a tensioning jack 5 is sleeved on the outer side of the anchor 12, an end of the tensioning jack 5 is provided with a jack anchor plate 13, the outer wall of the pressure-bearing centering sleeve 1 is symmetrically hinged with a connecting rod 2, an end of the connecting rod 2 is hinged with an extension piece 3, the extension piece 3 is parallel to the axis of the tensioning jack 5, the displacement dial indicator 15 is arranged on the extension piece 3 through the magnetic base 14, an anchor cable sequentially penetrates through the anchor cable dynamometer 10, the pressure-bearing centering sleeve 1 and the tensioning jack 12 inside the tensioning jack 5, a measuring rod of the displacement dial indicator 15 is parallel to the.
The inner diameter of an A-end connector 6 of the pressure-bearing centering sleeve 1 is the same as the outer diameter of a pressure-bearing cylinder 11 of an anchor cable dynamometer 10, the depth of the A-end connector 6 is the same as the extension length of the pressure-bearing cylinder 11 of the anchor cable dynamometer 10, and the inner diameter of a middle cavity 7 of the pressure-bearing centering sleeve 1 is the same as the inner diameter of the pressure-bearing cylinder 11.
Further, the inner diameter of the joint 8 at the end B of the pressure-bearing centering sleeve 1 is the same as the outer diameter of the anchor 12.
Two lugs 9 are symmetrically arranged on the outer wall of the middle of the pressure-bearing centering sleeve 1, a threaded hole I is formed in each lug 9, threaded holes II and threaded holes III are formed in the two ends of the connecting rod 2 respectively, a fastening bolt I penetrates through the threaded hole I of each lug 9 and the threaded hole II of the end of the connecting rod 2, a threaded hole IV is formed in the end of the extension piece 3, and a fastening bolt II 4 penetrates through the threaded holes III of the end of the connecting rod 2 and the threaded holes IV of the end of the extension piece 3.
The magnetic base 14 comprises a switch type magnetic base and a support rod, one end of the support rod is fixedly arranged on the switch type magnetic base, and the displacement dial indicator 15 is fixedly arranged at the other end of the support rod.
Further, the bracing piece includes bracing piece I, bracing piece II, and the one end of bracing piece I is fixed to be set up on the electro-magnet base, and the other end of bracing piece I is provided with screw hole V, and the both ends of bracing piece II are provided with screw hole VI and fixed orifices respectively, and fastening bolt III wears to establish in screw hole V of bracing piece I and screw hole VI of bracing piece II, and the sleeve of displacement percentage table 15 wears to establish in the fixed orifices of bracing piece II.
The mounting and using method of the centering device of the composite anchor cable dynamometer comprises the following steps:
(1) sleeving a pressure-bearing cylinder of the anchor cable dynamometer on the anchor cable, sleeving an A-end connector of the pressure-bearing centering sleeve on the pressure-bearing cylinder of the anchor cable dynamometer, and penetrating the anchor cable through a middle cavity of the pressure-bearing centering sleeve;
(2) penetrating an anchor rope through the anchor device, inserting the end head of the anchor device into the end head B of the pressure-bearing centering sleeve, sleeving a tensioning jack outside the anchor device, and installing a jack anchor plate at the other end of the tensioning jack;
(3) the method comprises the following steps that a fastening bolt I penetrates through a threaded hole I of a convex block on the outer wall of a pressure-bearing centering sleeve and a threaded hole II of an end of a connecting rod, the fastening bolt II penetrates through a threaded hole III of the end of the connecting rod and a threaded hole IV of the end of an extension piece, the distance between the extension piece and the outer wall of a tensioning jack is adjusted, and the extension piece is parallel to the axis of the tensioning jack;
(4) adsorbing a magnetic base on an extension piece through the magnetic force of a switch type magnetic base, adjusting the distance between the magnetic base and the side wall of a tensioning jack, enabling a measuring rod of a displacement dial indicator to penetrate through a fixing hole of a supporting rod II and fixing a sleeve of the displacement dial indicator in the fixing hole, enabling the measuring rod of the displacement dial indicator to be parallel to an anchor cable by adjusting the included angle between the supporting rod I and the supporting rod II, and enabling a measuring probe of the displacement dial indicator to be in contact with an anchor plate of the jack;
(5) when the tensioning jack is pulled, the measuring rod of the displacement dial indicator moves along with the anchor plate of the jack to monitor the tensioning displacement, when the tensioning displacement is large, the magnetic base can also move on the extension piece along the extension direction of the anchor cable, initial and final readings are recorded during each movement, and the displacement value is measured for multiple times in stages to prevent the position instrument from exceeding the range;
(6) and after tensioning is finished, screwing out the fastening bolt I and the fastening bolt II, and withdrawing the connecting rod and the extension piece.
The utility model has the advantages that:
(1) the problem of eccentric load caused by misalignment exists in the field installation work of the anchor cable dynamometer, so that the error of monitoring data is large; the displacement dial indicator is complex to install, so that the monitoring working efficiency is low, the anchor cable tensioning displacement is in risk of exceeding the measuring range, and the like, the composite anchor cable dynamometer centering device can well center an anchor cable dynamometer and an anchorage device, uniformly transmits load to the anchor cable dynamometer, and reduces data errors caused by eccentric load; meanwhile, the displacement measurement assistance work in the anchor cable tensioning process is considered, and a temporary attachment platform is built for the displacement measurement device, so that the problem that a displacement dial indicator has no reliable foot drop point is solved; the displacement dial indicator can move freely on the attachment platform to solve the problem of over-range. The efficiency of the anchor cable dynamometer mounting work and the accuracy of the measured value are improved;
(2) the utility model discloses a compound anchor rope dynamometer centering device has characteristics such as integration, portable, dismantled and assembled and partial subassembly reuse, and liberation part human resource improves the installation work efficiency of anchor rope dynamometer, reduces the monitoring error, provides many-sided service for monitoring work.
Drawings
FIG. 1 is a schematic structural view of a composite anchor cable dynamometer centering device;
FIG. 2 is a schematic view of the pressure-bearing centering sleeve, connecting rod and elongate member assembly;
in the figure: 1-centering pressure-bearing sleeve, 2-connecting rod, 3-extension piece, 4-fastening bolt II, 5-tensioning jack, 6-A end joint, 7-middle cavity, 8-B end joint, 9-lug, 10-anchor cable dynamometer, 11-pressure-bearing cylinder, 12-anchor, 13-jack anchor plate, 14-magnetic base and 15-displacement dial indicator.
Detailed Description
The present invention will be further described with reference to the following detailed description.
Example 1: as shown in fig. 1-2, a composite anchor cable dynamometer centering device comprises a pressure-bearing centering sleeve 1, an anchor cable dynamometer 10, an anchorage device 12, a tension jack 5, a magnetic base 14 and a displacement dial indicator 15, wherein an end joint 6A of the pressure-bearing centering sleeve 1 is sleeved on the outer wall of the anchor cable dynamometer 10, an end joint 8B of the pressure-bearing centering sleeve 1 is sleeved on the outer wall of the anchorage device 12, the tension jack 5 is sleeved on the outer side of the anchorage device 12, an end head of the tension jack 5 is provided with a jack anchor plate 13, the outer wall of the pressure-bearing centering sleeve 1 is symmetrically hinged with a connecting rod 2, an end head of the connecting rod 2 is hinged with an extension piece 3, the extension piece 3 is parallel to the axis of the anchor jack 5, the displacement dial indicator 15 is arranged on the extension piece 3 through the magnetic base 14, an anchor cable sequentially passes through the anchor device 12 at, the measuring rod of the displacement dial indicator 15 is parallel to the anchor cable, and the measuring probe of the displacement dial indicator 15 is in contact with the jack anchor plate 13.
Example 2: as shown in fig. 1-2, a composite anchor cable dynamometer centering device comprises a pressure-bearing centering sleeve 1, an anchor cable dynamometer 10, an anchor 12, a tension jack 5, a magnetic base 14 and a displacement dial indicator 15, wherein an end joint 6A of the pressure-bearing centering sleeve 1 is sleeved on the outer wall of the anchor cable dynamometer 10, an end joint 8B of the pressure-bearing centering sleeve 1 is sleeved on the outer wall of the anchor 12, the tension jack 5 is sleeved on the outer side of the anchor 12, an end head of the tension jack 5 is provided with a jack anchor plate 13, the outer wall of the pressure-bearing centering sleeve 1 is symmetrically hinged with a connecting rod 2, an end head of the connecting rod 2 is hinged with an extension piece 3, the extension piece 3 is parallel to the axis of the anchor 5, the displacement dial indicator 15 is arranged on the extension piece 3 through the magnetic base 14, an anchor cable sequentially passes through the anchor 12 in the anchor dynamometer 10, a measuring rod of the displacement dial indicator 15 is parallel to the anchor cable, and a measuring probe of the displacement dial indicator 15 is in contact with the jack anchor plate 13;
the inner diameter of an end A joint 6 of the pressure-bearing centering sleeve 1 is the same as the outer diameter of a pressure-bearing cylinder 11 of an anchor cable dynamometer 10, the depth of the end A joint 6 is the same as the extension length of the pressure-bearing cylinder 11 of the anchor cable dynamometer 10, and the inner diameter of a middle cavity 7 of the pressure-bearing centering sleeve 1 is the same as the inner diameter of the pressure-bearing cylinder 11;
the inner diameter of the joint 8 at the end B of the pressure-bearing centering sleeve 1 is the same as the outer diameter of the anchor 12;
two convex blocks 9 are symmetrically arranged on the outer wall of the middle part of the pressure-bearing centering sleeve 1, threaded holes I are formed in the convex blocks 9, threaded holes II and threaded holes III are respectively formed in two ends of the connecting rod 2, fastening bolts I are arranged in the threaded holes I of the convex blocks 9 and the threaded holes II in the ends of the connecting rod 2 in a penetrating mode, threaded holes IV are formed in the ends of the extending pieces 3, and fastening bolts II 4 are arranged in the threaded holes III in the ends of the connecting rod 2 and the threaded holes IV in the ends of the extending;
the magnetic base 14 comprises an electromagnet base and a support rod, one end of the support rod is fixedly arranged on the electromagnet base, and the displacement dial indicator 15 is fixedly arranged at the other end of the support rod.
Example 3: the compound anchor rope dynamometer centering device of this embodiment is unanimous basically with the compound anchor rope dynamometer centering device structure of embodiment 2, and the difference lies in: the support rod comprises a support rod I and a support rod II, one end of the support rod I is fixedly arranged on the switch type magnetic seat, the other end of the support rod I is provided with a threaded hole V, two ends of the support rod II are respectively provided with a threaded hole VI and a fixing hole, a fastening bolt III is arranged in the threaded hole V of the support rod I and the threaded hole VI of the support rod II in a penetrating manner, and a sleeve of the displacement dial indicator 15 is arranged in the fixing hole of the support rod II in a penetrating manner;
the mounting and using method of the centering device of the composite anchor cable dynamometer comprises the following steps:
(1) sleeving a pressure-bearing cylinder of the anchor cable dynamometer on the anchor cable, sleeving an A-end connector of the pressure-bearing centering sleeve on the pressure-bearing cylinder of the anchor cable dynamometer, and penetrating the anchor cable through a middle cavity of the pressure-bearing centering sleeve;
(2) penetrating an anchor rope through the anchor device, inserting the end head of the anchor device into the end head B of the pressure-bearing centering sleeve, sleeving a tensioning jack outside the anchor device, and installing a jack anchor plate at the other end of the tensioning jack;
(3) the method comprises the following steps that a fastening bolt I penetrates through a threaded hole I of a convex block on the outer wall of a pressure-bearing centering sleeve and a threaded hole II of an end of a connecting rod, the fastening bolt II penetrates through a threaded hole III of the end of the connecting rod and a threaded hole IV of the end of an extension piece, the distance between the extension piece and the outer wall of a tensioning jack is adjusted, and the extension piece is parallel to the axis of the tensioning jack;
(4) the method comprises the following steps that a magnetic base is adsorbed on an extension piece through a switch type magnetic base, the distance between the magnetic base and the side wall of a tensioning jack is adjusted, a measuring rod of a displacement dial indicator penetrates through a fixing hole of a support rod II and a sleeve of the displacement dial indicator is fixed in the fixing hole, the measuring rod of the displacement dial indicator is parallel to an anchor cable by adjusting the included angle between the support rod I and the support rod II, and a measuring probe of the displacement dial indicator is in contact with an anchor plate of the jack;
(5) when the tensioning jack is pulled, the measuring rod of the displacement dial indicator moves along with the anchor plate of the jack to monitor the tensioning displacement, when the tensioning displacement is large, the magnetic base can also move on the extension piece along the extension direction of the anchor cable, initial and final readings are recorded during each movement, and the displacement value is measured for multiple times in stages to prevent the position instrument from exceeding the range;
(6) after tensioning is finished, screwing out the fastening bolt I and the fastening bolt II, and withdrawing the connecting rod and the extension piece;
the problem of eccentric load caused by misalignment exists in the field installation work of the anchor cable dynamometer, so that the error of monitoring data is large; the displacement dial indicator is complex to install, so that the monitoring working efficiency is low, the anchor cable tensioning displacement is in risk of exceeding the measuring range, and the like, the composite anchor cable dynamometer centering device can well center an anchor cable dynamometer and an anchorage device, uniformly transmits load to the anchor cable dynamometer, and reduces data errors caused by eccentric load; meanwhile, the displacement measurement assistance work in the anchor cable tensioning process is considered, and a temporary attachment platform is built for the displacement measurement device, so that the problem that a displacement dial indicator has no reliable foot drop point is solved; the displacement dial indicator can move freely on the attachment platform to solve the problem of over-range; the efficiency of anchor rope dynamometer installation work and the accuracy of survey value are improved.
While the present invention has been particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (6)
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921571398.9U CN210426393U (en) | 2019-09-20 | 2019-09-20 | A composite anchor cable dynamometer alignment device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201921571398.9U CN210426393U (en) | 2019-09-20 | 2019-09-20 | A composite anchor cable dynamometer alignment device |
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| CN210426393U true CN210426393U (en) | 2020-04-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482068A (en) * | 2021-07-24 | 2021-10-08 | 中铁广州工程局集团深圳工程有限公司 | Foundation pit support automatic monitoring system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113482068A (en) * | 2021-07-24 | 2021-10-08 | 中铁广州工程局集团深圳工程有限公司 | Foundation pit support automatic monitoring system |
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