CN-224227667-U - Locking device for actively clamping anchor ear

CN224227667UCN 224227667 UCN224227667 UCN 224227667UCN-224227667-U

Abstract

The utility model provides a locking device for actively clamping hoops, which is used for tensioning and loosening two inner hoop steel belts to be connected, and comprises a hydraulic motor, a worm gear reducer, a transmission screw rod, a first connecting box body and a second connecting box body, wherein the worm gear reducer is connected with a power output end of the hydraulic motor, the worm gear reducer is arranged on the first connecting box body, one end of the transmission screw rod is connected with a worm wheel in a key connection mode, and the other end of the transmission screw rod sequentially penetrates through the first connecting box body, the two inner hoop steel belts to be connected and the second connecting box body and is then fixedly connected to the two inner hoop steel belts to be connected through anti-rotation nuts. The utility model can realize accurate control of the clamping force of the anchor ear, and can effectively avoid damage to the surface of the bridge pier column in the using process of the anchor ear.

Inventors

LI LONG
LUO LIANG
QIN MINGQING
LIU ZHIHUA
YANG KE
LI TIANJU

Assignees

四川拓扑达机械技术有限公司

Dates

Publication Date: 20260512
Application Date: 20250603

Claims (10)

1. The locking device of the active clamping anchor ear is used for tightening and loosening two inner anchor ear steel belts to be connected and is characterized by comprising a hydraulic motor, a worm gear reducer, a transmission screw rod, a first connecting box body and a second connecting box body, wherein the worm gear reducer is connected with a power output end of the hydraulic motor, the worm gear reducer is arranged on the first connecting box body, one end of the transmission screw rod is connected with a worm wheel in a key connection mode, and the other end of the transmission screw rod sequentially penetrates through the first connecting box body, the two inner anchor ear steel belts to be connected and the second connecting box body and is fixedly connected to the two inner anchor ear steel belts to be connected through anti-rotation nuts.
2. The locking device for actively clamping the anchor ear according to claim 1, wherein the first connecting box body, the two inner anchor ear steel belts to be connected and the second connecting box body are respectively provided with a through hole, and the transmission screw rod passes through the through holes and is fastened and connected through an anti-rotation nut.
3. The locking device for actively clamping the hoop is characterized in that an anti-rotation clamping plate used for preventing the anti-rotation nut from rotating together with the transmission screw rod is clamped on the outer surface of the anti-rotation nut, and the anti-rotation clamping plate is connected to the second connecting box body through bolt fastening.
4. The locking device for actively clamping the anchor ear according to claim 3, wherein the upper and lower parts of the anti-rotation nut are respectively provided with two planes, the anti-rotation clamping plate is provided with a plane which is propped against the two planes of the anti-rotation nut, when the transmission screw rotates, the transmission screw keeps in-situ rotation through the two propped planes, and the anti-rotation nut drives the connecting box body II to move left and right on the transmission screw through the anti-rotation clamping plate.
5. The locking device for the active clamping hoops is characterized in that two inner hoop steel belts to be connected comprise an inner hoop steel belt I and an inner hoop steel belt II, the end parts of the inner hoop steel belts I are connected with a flange connection block through pin shafts, flange connection lugs I are arranged at the end parts of the flange connection blocks, flange connection lugs II are arranged at the end parts of the inner hoop steel belts II, through holes I and through holes II are formed in the flange connection lugs I and the flange connection lugs II, and the locking device for the active clamping hoops is arranged after penetrating through the through holes I and the through holes II and locks and unlocks the inner hoop steel belts I and the inner hoop steel belts II.
6. The locking device for actively clamping a hoop according to claim 5, wherein semicircular mounting blocks are arranged at the upper and lower parts of the first flange connecting lug and the second flange connecting lug, hinge shafts are connected to the upper surface and the lower surface of the first connecting box and the upper surface of the second connecting box in a hinged manner, four hinge shafts are fixed on the four semicircular mounting blocks through four rotating shaft pressing blocks respectively, and the first connecting box and the second connecting box can rotate around corresponding double hinge shafts.
7. The locking device for the active clamping hoop according to claim 5, wherein the second connecting box body is a hollow box body with an opening at one end, a disc spring is arranged at the inner bottom of the second connecting box body, and a disc spring pressing plate is arranged outside the disc spring.
8. The locking device for actively clamping the hoop of claim 7, wherein a pressure sensor is further arranged in the second connecting box body, one side of the pressure sensor is abutted against the anti-rotation nut, the other side of the pressure sensor is fixed on the disc spring pressing plate, and when the anti-rotation nut moves towards the second connecting box body, force is transmitted to the disc spring through the pressure sensor and then transmitted to the second connecting box body through the disc spring.
9. The locking device for actively clamping the hoop according to claim 1, wherein the end of the driving screw is further provided with a limit nut for preventing the anti-rotation nut from being separated from the driving screw when moving.
10. The locking device for actively clamping the anchor ear according to claim 3, wherein the anti-rotation nut is provided with a step surface at one end which abuts against the anti-rotation clamping plate, a reverse baffle is arranged outside the step surface, and the reverse baffle is fixedly connected with the anti-rotation clamping plate through bolts.

Description

Locking device for actively clamping anchor ear Technical Field The utility model relates to the technical field of pouring bridge lower construction, in particular to a locking device for actively clamping a hoop. Background Along with the progress of science and technology and the acceleration of urban process, the construction of bridges is increasingly important. The crawler is an important part in bridge construction, and can automatically complete a plurality of complicated and high-risk bridge construction tasks, so that the working efficiency is remarkably improved, the time and cost of manual operation are reduced, and the operation difficulty and risk are reduced. The most adopted construction method for pier pouring is to use a hoop method to carry out capping beam construction, and the clamping and loosening actions of the hoop on the pier are adopted to realize the up-and-down crawling of the crawler. The anchor ear locking device among the prior art, at first by two semicircular arc plates through bolted connection locking constitution, this locking mode is high altitude construction, needs professional manual citrate tightening bolt in pier top, and the operation has the potential safety hazard, inefficiency. Later, the technology of adopting automatic staple bolt to carry out the construction still appears, and automatic staple bolt adopts pneumatic cylinder and hydraulic lock to cooperate the mode that the retaining member carries out locking generally. The locking mode is characterized in that the hydraulic oil is polluted by oil liquid due to the fact that the hydraulic oil possibly has internal leakage, the internal leakage is possibly increased after the hydraulic lock is used for a long time, and even a hydraulic pipeline is possibly burst, so that the potential risk is high. Recently, a disc spring locking mode has appeared, for example, chinese patent application publication No. CN111347096a discloses a locking method, a disc spring locking cylinder based on the locking method, which has poor locking effect, and the sealing part of the piston cylinder is easy to leak oil. And then, as in the Chinese patent with the application number of CN202223075330.6, a crawler of a bridge pier column climbing formwork construction system is disclosed, a locking device of the crawler adopts a disc spring locking mode, the clamping mode is passive clamping, the clamping force of the crawler can be changed to a certain extent under the influence of the diameter change of the pier column, and the clamping force is inaccurate. And as in the Chinese patent with the application number of CN202223056625.9, a climbing device and a climbing system are disclosed, the electric crawler clamping device adopts a screw rod for clamping, the clamping mode belongs to motor-driven active clamping, and the problems of heavy weight and high cost exist. Disclosure of utility model In order to solve the problems in the prior art, the utility model provides a locking device for actively clamping a hoop, which adopts active clamping, can realize accurate control of the clamping force of the hoop, and can effectively avoid damage to the surface of a bridge pier in the using process of the hoop. The locking device of the active clamping anchor ear is used for tensioning and loosening two inner anchor ear steel belts to be connected, and comprises a hydraulic motor, a worm gear reducer, a transmission screw rod, a connecting box body I and a connecting box body II, wherein the worm gear reducer is connected with a power output end of the hydraulic motor, the worm gear reducer is arranged on the connecting box body I, one end of the transmission screw rod is connected with a worm wheel in a key connection mode, and the other end of the transmission screw rod sequentially penetrates through the connecting box body I, the two inner anchor ear steel belts to be connected and the connecting box body II and is fixedly connected to the two inner anchor ear steel belts to be connected through anti-rotation nuts. According to the preferred technical scheme, through holes are formed in the first connecting box body, the two inner hoop steel belts to be connected and the second connecting box body, and the transmission screw rod passes through the through holes and is fixedly connected through the anti-rotation nuts. According to the preferred technical scheme, an anti-rotation clamping plate used for preventing the anti-rotation nut from rotating together with the transmission screw rod is clamped on the outer surface of the anti-rotation nut, and the anti-rotation clamping plate is connected to the second connecting box body through bolt fastening. The preferable technical scheme is that the upper and lower parts of the anti-rotation nut are provided with two planes, the anti-rotation clamping plate is provided with planes which are propped against the two planes of the anti-rotation nut, when the transmission screw rotates, the tra