CN216663841U

CN216663841U - Auxiliary supporting device for external steel strand steering gear

Info

Publication number: CN216663841U
Application number: CN202123234906.4U
Authority: CN
Inventors: 王小龙; 刘月虎; 曹宏波; 王伟; 王天宇; 邹伟; 张望; 董营
Original assignee: Shandong Road And Bridge Engineering Design Consulting Co ltd; Shandong Luqiao Group Co Ltd
Current assignee: Shandong Road And Bridge Engineering Design Consulting Co ltd; Shandong Luqiao Group Co Ltd
Priority date: 2021-12-21
Filing date: 2021-12-21
Publication date: 2022-06-03
Anticipated expiration: 2031-12-21

Abstract

The application discloses external steel strand wires are auxiliary stay device for steering gear, auxiliary stay device include the centre gripping subassembly, the centre gripping subassembly includes the grip block, down the grip block and is used for connecting the fixed column of grip block and lower grip block, go up the roof butt of grip block and steering gear, the diapire butt of grip block and steering gear is with the centre gripping steering gear down, go up grip block and pontic fixed connection. The steering gear is fixedly connected with the bridge body, and the clamping assembly clamps the steering gear, so that the steering gear is not easy to split due to overlarge borne load. The upper clamping plate is fixedly connected with the axle body, the upper clamping plate shares upward acting force borne by the steering gear, and load borne by the steering gear can be transferred to the axle body, so that the steering gear is not easily damaged due to overlarge load.

Description

Auxiliary supporting device for external steel strand steering gear

Technical Field

The application relates to the field of external prestressing devices of bridge engineering, in particular to an auxiliary supporting device for an external steel strand steering gear.

Background

The steering gear is also called a steering saddle, and refers to a device for steering prestressed bundles such as steel strands in an external prestressed bridge structure, and the steering gear is a key device for transmitting external prestressed load to the bridge structure.

In the related art, for example, chinese patent No. CN203904835U discloses an integrated external prestressed beam steering saddle, which comprises a bottom plate and a pair of clamping plates for clamping a beam, wherein the clamping plates are connected to the beam by anchoring, and the clamping plates are welded on the upper surface of the bottom plate. The bottom end of the bottom plate is connected with a steering curved plate through a support web plate, limiting plates used for limiting deflection of external prestressed tendons are perpendicularly welded on two sides of the bottom plate, the external prestressed tendons are tightly attached to the bottom surface of the steering curved plate, and the external prestressed tendons are abutted to the limiting plates to pass in and out of the steering saddle to achieve steering.

With respect to the above related art, the inventors consider that: after the steering gear steers the prestressed bundles such as the steel strand and the like, the steering gear bears the steering force in the horizontal direction and the vertical direction, and the steering gear is easy to damage due to overlarge load.

SUMMERY OF THE UTILITY MODEL

In order to make the steering gear be difficult for damaging because of the excessive load, this application provides an external steel strand wires auxiliary stay device for steering gear.

The application provides an external steel strand wires auxiliary stay device for steering gear adopts following technical scheme:

the utility model provides an external steel strand wires auxiliary stay device for steering gear includes the centre gripping subassembly, the centre gripping subassembly includes grip block, lower grip block and is used for connecting the fixed column of grip block and lower grip block, go up the roof butt of grip block and steering gear, the diapire butt of grip block and steering gear is with centre gripping steering gear down, go up grip block and pontic fixed connection.

By adopting the technical scheme, the steering gear is fixedly connected with the bridge body, and the clamping assembly clamps the steering gear, so that the steering gear is not easy to split due to overlarge borne load. Go up grip block and pontic fixed connection, upward effort that the steering gear bore has been shared to last grip block, and can shift the load that bears on the steering gear to the pontic to make the steering gear be difficult for damaging because of the load is too big.

Optionally, the clamping assembly further comprises at least two reinforcing columns, one end of each reinforcing column is fixedly connected with the top end of one fixing column, and the other end of each reinforcing column is fixedly connected with the bottom end of the other fixing column.

Through adopting above-mentioned technical scheme, the slope of strengthening the post sets up in order to connect two fixed columns to reduced the fixed post because of upper and lower grip block extrusion and the probability of buckling, reduced the fixed post simultaneously and pulled the cracked probability because of upper and lower grip block is reverse.

Optionally, the auxiliary supporting device further comprises a suspension fixing assembly for connecting the clamping assembly with the upper end wall of the bridge body, the suspension fixing assembly comprises a connecting column, the connecting column is fixedly connected with the upper clamping plate, and the connecting column is fixedly connected with the bridge body.

By adopting the technical scheme, partial load of the steering gear is transferred to the clamping assembly and then transferred to the connecting column through the clamping assembly, and the contact area of the connecting column and the bridge body is far larger than that of the upper clamping column and the bridge body, so that the load is transferred to the bridge body more dispersedly, and the probability of damage of the bridge body due to stress concentration is reduced.

Optionally, hang fixed subassembly and still include flexible post, flexible post slides along spliced pole length direction and spliced pole and is connected, be provided with the drive assembly that is used for driving flexible post and slides on the spliced pole, be provided with the locating part that is used for restricting flexible post and removes on the spliced pole, the one end that the spliced pole was kept away from to flexible post and the up end wall fixed connection of pontic.

Through adopting above-mentioned technical scheme, the flexible post of drive assembly drive is to the direction removal of keeping away from the steering gear, according to the distance adjustment slip distance of flexible post between steering gear roof and the pontic roof to make auxiliary stay device's vertical dimension the same with the thickness of pontic, with the area of contact that increases auxiliary stay device and pontic, do benefit to better and get to transfer the load that the steering gear bore to the pontic. After the position of the telescopic column is determined, the position of the telescopic column is limited through the limiting part, so that the telescopic column is rigidly connected with the connecting column.

Optionally, the drive assembly includes the sleeve with flexible post fixed connection and slides the slip post of cover locating in the sleeve, the one end and the spliced pole fixed connection of flexible post are kept away from to the slip post, be provided with the driving piece that is used for the drive slip post to slide on the sleeve.

Through adopting above-mentioned technical scheme, driving piece drive sleeve removes to the direction of keeping away from the spliced pole to make flexible post remove to the direction of keeping away from the centre gripping subassembly, the spliced pole is stretched out to flexible post of being convenient for. After the clamping assembly is fixed, the top end of the telescopic column may be higher than the top wall of the bridge body, and the telescopic column needs to be pressed into the connecting column.

Optionally, the sleeve overcoat is equipped with buffer spring, buffer spring one end is connected with the spliced pole, and the other end is connected with flexible post.

Through adopting above-mentioned technical scheme, buffer spring makes sleeve and the difficult separation under the drive of driving piece of post that slides.

Optionally, the auxiliary supporting device further comprises a supporting assembly, the supporting assembly comprises a supporting column and a fixed block, the supporting column is fixedly connected with the lower clamping plate, the fixed block is connected with the supporting column in a sliding mode along the vertical direction, the fixed block is fixedly connected with the bridge body, a spring is arranged on the fixed block, one end of the spring is fixedly connected with the supporting column, and the other end of the spring is fixedly connected with the fixed block.

Through adopting above-mentioned technical scheme, fix the fixed block on the pontic, the support column passes through the spring to be supported by the fixed block for lower grip block provides the holding power, makes centre gripping subassembly and steering gear be difficult for moving down because of stress. When the instantaneous pressure of pontic increases, can lead to steel strand wires pressure to increase, and then make the instantaneous stress load of steering gear increase, the spring provides the cushion effect for support column and centre gripping subassembly, and then provides the cushion effect for the steering gear to make the steering gear be difficult for because of instantaneous load increase upwards or move down and the connection between the pontic damage. In addition, when the load of the steering gear changes due to expansion caused by heat and contraction caused by cold and the like, the spring provides buffer for the steering gear.

Optionally, fixedly connected with pneumatic cylinder on the fixed block, the pneumatic cylinder is kept away from the one end of fixed block and is held board fixed connection down so that with fixed block and pontic butt when the installation.

Through adopting above-mentioned technical scheme, with the centre gripping subassembly fixed to the pontic on the back, drive pneumatic cylinder adjustment fixed block and the distance between the grip block down, until fixed block and pontic diapire butt, be convenient for fix the fixed block to the pontic on.

In summary, the present application includes at least one of the following beneficial technical effects:

the clamping assembly clamps the steering gear, an upper clamping plate of the clamping assembly is fixedly connected with the upper end wall of the bridge body through the suspension fixing assembly, and a lower clamping plate of the clamping assembly is fixedly connected with the lower end wall of the bridge body through the supporting assembly, so that prestress applied to the steering gear by the steel strand is dispersed on the bridge body, and the steering gear is not easily damaged due to overlarge load;

the vertical size of the auxiliary supporting device can be adjusted according to the thickness of the bridge body, so that the contact area between the auxiliary supporting device and the bridge body is increased, and the load borne by the steering gear is conveniently dispersed on the bridge body.

Drawings

Fig. 1 is a schematic installation diagram of an embodiment of the present application.

Fig. 2 is a schematic view of the entire structure of embodiment 1.

Fig. 3 is a partial structural view of embodiment 2.

Fig. 4 is a partial sectional view of embodiment 2.

FIG. 5 is a schematic view of the entire structure of embodiment 3.

FIG. 6 is a partial sectional view of embodiment 3.

Description of reference numerals:

100. a clamping assembly; 110. an upper clamping plate; 120. a lower clamping plate; 130. fixing a column; 140. a reinforcement column; 200. a suspension fixing assembly; 210. connecting columns; 211. an accommodating chamber; 212. a fixing plate; 220. a telescopic column; 300. a support assembly; 310. a support pillar; 320. a fixed block; 321. a chute; 322. enclosing plates; 323. a spring; 400. a drive assembly; 410. a sleeve; 420. sliding the column; 430. a drive spring; 440. a buffer spring; 500. a pneumatic cylinder; 600. a bridge body; 700. a steering device.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses external steel strand wires auxiliary stay device for steering gear.

Example 1:

referring to fig. 1 and 2, a steering gear 700 is connected to the bridge body 600 by an anchor bolt, and a steel strand is passed through the steering gear 700 to achieve steering. The auxiliary supporting means includes a clamping assembly 100 for clamping the steering gear 700 and a suspension fixing assembly 200 for connecting the clamping assembly 100 with the upper end wall of the bridge body 600. The steering gear 700 bears the prestress load generated by the turning of the steel strand, and the clamping assembly 100 clamps the steering gear 700 to share the prestress load of the steering gear 700, so that the steering gear 700 is not easy to damage. The suspension fixing assembly 200 distributes the load of the steel strands applied to the steering gear 700 to the axle body 600, so that the steering gear 700 is not easily damaged by an excessive load.

Referring to fig. 2, the clamping assembly 100 includes an upper clamping plate 110, a lower clamping plate 120, four fixing posts 130 and a reinforcing post 140, the upper clamping plate 110 is connected to the bridge 600 in an anchoring manner, the lower clamping plate 120 is located below the upper clamping plate 110, and the lower clamping plate 120 and the upper clamping plate 110 are spaced in parallel to each other to clamp the steering gear 700. The four fixing posts 130 are respectively disposed at four corners of the upper clamping plate 110, and the fixing posts 130 are fixedly connected to the upper clamping plate 110 and the lower clamping plate 120. The reinforcing column 140 is arranged in parallel with the side wall of the bridge body 600, the reinforcing column 140 is positioned between the two fixing columns 130 far away from the side wall of the bridge body 600, and one end of the reinforcing column 140 is fixedly connected with the upper end of one fixing column 130 and is fixedly connected with the upper clamping plate 110; the other end of the reinforcing column 140 is fixedly connected with the lower end of the other fixing column 130 and is fixedly connected with the lower clamping plate 120. The reinforcement post 140 abuts the diverter 700.

Referring to fig. 2, the hanging fixture assembly 200 includes a connection column 210, the connection column 210 is vertically disposed, and a bottom wall of the connection column 210 is fixedly connected with a top wall of the upper clamping plate 110. The connecting column 210 is integrally formed with a fixing plate 212, and the fixing plate 212 is connected to the bridge body 600 in an anchoring manner.

The implementation principle of the embodiment 1 of the application is as follows:

the steering gear 700 is fixed to the bridge body 600, and the steel strand passes through the steering gear 700. The clamping assembly 100 is sleeved on the steering gear 700, and the upper clamping plate 110 and the fixing plate 212 of the clamping assembly 100 are fixed on the bridge body 600 through the anchor bolts, so that the auxiliary supporting device is installed.

Example 2:

referring to fig. 1 and 3, the present embodiment is different from embodiment 1 in that: the auxiliary supporting device further comprises a supporting component 300 for connecting the clamping component 100 with the bottom wall of the bridge body 600, the supporting component 300 provides supporting force and buffering force for the clamping component 100, and further provides supporting force and buffering force for the steering gear 700, and the probability that the steering gear 700 is damaged due to excessive load is further reduced.

Referring to fig. 3 and 4, the support assembly 300 includes a support pillar 310 and a fixing block 320, a top wall of the fixing block 320 abuts against a bottom wall of the bridge body 600, and the fixing block 320 is anchored to the bridge body 600. The upper end of the supporting column 310 is fixedly connected with the lower clamping plate 120, the fixing block 320 is provided with a sliding groove 321, and the lower end of the supporting column 310 is connected with the groove wall of the sliding groove 321 in a sliding manner along the vertical direction. The bottom wall of the sliding groove 321 is fixedly connected with a spring 323, and one end of the spring 323, which is far away from the bottom wall of the sliding groove 321, is fixedly connected with the supporting column 310. The fixing block 320 is integrally formed with a surrounding plate 322, and the surrounding plate 322 abuts against the surrounding wall of the supporting column 310 to increase the contact area between the fixing block 320 and the supporting column 310.

The fixing block 320 is fixedly connected to the bottom wall of the bridge 600, and the supporting column 310 is fixedly connected to the lower clamping plate 120 to provide a supporting force for the clamping assembly 100 and the steering gear 700. As the instantaneous load imparted by the steel strand to the diverter 700 increases, the spring 323 provides a dampening force to the clamp assembly 100 and the diverter 700, making the diverter 700 less susceptible to damage from the instantaneous load increase. The spring 323 provides a buffer for load change of the steering gear 700 caused by thermal expansion and contraction of the bridge body 600.

Referring to fig. 3 and 4, the fixing block 320 is spaced from the bottom wall of the bridge 600 by the spring 323, so that the fixing block 320 is fixedly connected with the pneumatic cylinder 500, and one end of the pneumatic cylinder 500 far from the fixing block 320 is fixedly connected with the lower clamping plate 120. During installation, the pneumatic cylinder 500 is driven to operate by using a carried tool so as to move the fixing block 320 towards the lower clamping plate 120 until the top wall of the fixing block 320 is abutted against the bottom wall of the bridge body 600 and fixed by the anchoring bolt. The pneumatic cylinder 500 may be removed thereafter, or the pneumatic cylinder 500 may be left on the fixing block 320 such that the pneumatic cylinder 500 supports the lower clamping plate 120.

The implementation principle of embodiment 2 of the present application is as follows:

the steering gear 700 is fixed to the bridge body 600, and the steel strand passes through the steering gear 700. The clamping assembly 100 is sleeved on the steering gear 700, the upper clamping plate 110 and the fixing plate 212 of the clamping assembly 100 are fixed on the bridge body 600 through the anchor bolts, the top wall of the fixing block 320 is abutted against the bottom wall of the bridge body 600 through the pneumatic cylinder 500, the fixing block 320 is fixed on the bottom wall of the bridge body 600 through the anchor bolts, and the auxiliary supporting device is installed.

Example 3:

referring to fig. 5 and 6, the present embodiment is different from embodiment 2 in that: the hanging fixing assembly 200 further comprises a telescopic column 220, one end of the telescopic column 220 is connected with the connecting column 210 in a sliding mode, and the other end of the telescopic column 220 is connected with the upper end wall of the bridge body 600 in an anchoring mode. The size of the auxiliary support means is adjusted by adjusting the distance between the telescopic post 220 and the upper clamping plate 110 so that the vertical size of the auxiliary support means is the same as the thickness of the bridge body 600 to increase the contact area of the auxiliary support means with the bridge body 600, so that the auxiliary support means dispersedly transfers the load of the steering gear 700 to the bridge body 600, so that the bridge body 600 is not easily damaged by stress concentration.

Referring to fig. 5 and 6, a containing cavity 211 is formed in the connecting column 210, an upper end opening of the containing cavity 211 is formed in the connecting column 210, the telescopic column 220 is connected with a cavity wall containing the cavity 211 in a sliding manner along the vertical direction, a limiting part is arranged on the connecting column 210, the limiting part is an anchor bolt, and the connecting column 210 and the telescopic column 220 can be fixedly connected through the anchor bolt.

Referring to fig. 6, when installed, a driving assembly 400 for driving the telescopic column 220 to move vertically upward is disposed in the accommodating cavity 211 so that the telescopic column 220 can slide out of the connecting column 210.

Referring to fig. 6, the driving assemblies 400 are provided with four groups, the four groups of driving assemblies 400 are uniformly arranged on the bottom wall of the accommodating cavity 211, each driving assembly 400 comprises a sleeve 410 and a sliding column 420, the top end of each sleeve 410 is fixedly connected with the corresponding telescopic column 220, the sliding column 420 is slidably sleeved in the sleeve 410, and the bottom wall of the sliding column 420 is fixedly connected with the bottom wall of the accommodating cavity 211. A driving member is arranged in the sleeve 410, the driving member is a driving spring 430, one end of the driving spring 430 is fixedly connected with the bottom wall of the sleeve 410, and the other end of the driving spring 430 is fixedly connected with the sliding column 420 to drive the sleeve 410 to vertically move upwards. Sleeve 410 and the post 420 that slides all overlap and be equipped with buffer spring 440 outward, and buffer spring 440 one end is connected with flexible post 220 butt, and the other end is connected with holding the chamber 211 diapire butt.

The implementation principle of embodiment 3 of the application is as follows:

the deflector 700 is fixed to the bridge 600, and the steel strand passes through the deflector 700. The clamping assembly 100 is sleeved on the steering gear 700, the upper clamping plate 110 and the fixing plate 212 of the clamping assembly 100 are fixed on the bridge body 600 through anchor bolts, and the fixing block 320 is fixed on the bottom wall of the bridge body 600 through anchor bolts.

The telescopic stud 220 extends out of the connection stud 210 at the driven lower portion of the driving assembly 400, and after the top wall of the telescopic stud 220 is aligned with the top wall of the bridge body 600, the telescopic stud 220 is anchored to the bridge body 600. And then the telescopic column 220 and the connecting column 210 are fixed through an anchoring bolt, so that the auxiliary supporting device is installed.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an external steel strand wires auxiliary stay device for steering gear which characterized in that: the clamping device comprises a clamping assembly (100), wherein the clamping assembly (100) comprises an upper clamping plate (110), a lower clamping plate (120) and a fixing column (130) used for connecting the upper clamping plate (110) and the lower clamping plate (120), the upper clamping plate (110) is abutted to the top wall of a steering gear (700), the lower clamping plate (120) is abutted to the bottom wall of the steering gear (700) to clamp the steering gear (700), and the upper clamping plate (110) is fixedly connected with a bridge body (600).

2. The auxiliary supporting device for the external steel strand steering gear according to claim 1, wherein: the clamping assembly (100) further comprises at least two reinforcing columns (140), one end of each reinforcing column (140) is fixedly connected with the top end of one fixing column (130), and the other end of each reinforcing column (140) is fixedly connected with the bottom end of the other fixing column (130).

3. The auxiliary supporting device for the external steel strand steering gear according to claim 2, wherein: the auxiliary supporting device further comprises a hanging and fixing component (200) used for connecting the upper end walls of the clamping component (100) and the bridge body (600), the hanging and fixing component (200) comprises a connecting column (210), the connecting column (210) is fixedly connected with the upper clamping plate (110), and the connecting column (210) is fixedly connected with the bridge body (600).

4. The auxiliary supporting device for the external steel strand steering gear according to claim 3, wherein: hang fixed subassembly (200) and still include flexible post (220), flexible post (220) are slided along spliced pole (210) length direction and spliced pole (210) and are connected, be provided with drive assembly (400) that are used for driving flexible post (220) and slide on spliced pole (210), be provided with the locating part that is used for restricting flexible post (220) and removes on spliced pole (210), the one end that spliced pole (210) were kept away from in flexible post (220) and the upper end wall fixed connection of pontic (600).

5. The auxiliary supporting device for the external steel strand steering gear according to claim 4, wherein: drive assembly (400) include with flexible post (220) fixed connection's sleeve (410) with slide and overlap slip post (420) of locating in sleeve (410), the one end and spliced pole (210) fixed connection of flexible post (220) are kept away from to slip post (420), be provided with the driving piece that is used for driving slip post (420) to slide on sleeve (410).

6. The auxiliary supporting device for the external steel strand steering gear according to claim 5, wherein: the sleeve (410) overcoat is equipped with buffer spring (440), buffer spring (440) one end is connected with spliced pole (210), and the other end is connected with flexible post (220).

7. The auxiliary supporting device for the external steel strand steering gear according to any one of claims 1 to 6, wherein: auxiliary stay device still includes supporting component (300), supporting component (300) are including support column (310) and fixed block (320), support column (310) and lower grip block (120) fixed connection, be provided with spring (323) on fixed block (320), spring (323) one end and support column (310) fixed connection, the other end and fixed block (320) fixed connection slide along vertical direction and support column (310) with drive fixed block (320) and be connected, fixed block (320) and pontic (600) fixed connection.

8. The auxiliary supporting device for the external steel strand steering gear according to claim 7, wherein: fixedly connected with pneumatic cylinder (500) on fixed block (320), the one end and lower grip block (120) fixed connection of fixed block (320) are kept away from in pneumatic cylinder (500) so that with fixed block (320) and pontic (600) diapire butt when installing.