CN218466354U

CN218466354U - Bridge hogging moment is removal rack for stretch-draw

Info

Publication number: CN218466354U
Application number: CN202222280391.XU
Authority: CN
Inventors: 郑培銮; 刘华昌
Original assignee: CSCEC Strait Construction and Development Co Ltd
Current assignee: CSCEC Strait Construction and Development Co Ltd
Priority date: 2022-08-29
Filing date: 2022-08-29
Publication date: 2023-02-10
Anticipated expiration: 2032-08-29

Abstract

The utility model relates to a bridge hogging moment stretch-draw is with travelling gantry belongs to the technical field of mobile device. The bearing table is arranged above the base, a first fixing block and at least three second fixing blocks are fixedly arranged on the inner wall of the base, the top end of the first fixing block is rotatably connected with a first screw rod, the top ends of the second fixing blocks are rotatably connected with second screw rods, a motor is arranged above the first screw rod, the output end of the motor is fixedly connected with a transmission rod, the bottom end of the transmission rod is fixedly connected with the top end of the first screw rod, and long holes are formed in the positions, corresponding to the first fixing block and the second fixing block, of the base; the first screw rod and the second screw rod are both in threaded connection with connecting blocks, one end of each connecting block penetrates through the long hole, and the penetrating ends of the connecting blocks are both fixedly connected with supporting legs; chain wheels are fixedly arranged at the top end of the second screw rod and the transmission rod and are in transmission connection through a transmission chain; the utility model provides a bracing piece that current bridge hogging moment stretch-draw exists with the travelling gantry be difficult to pull out the scheduling problem.

Description

Bridge hogging moment is removal rack for stretch-draw

Technical Field

The utility model relates to a bridge hogging moment is travelling gantry for stretch-draw belongs to mobile device's technical field.

Background

The bending moment is one of the internal moments on the section of the stress component, and the popular expression is as follows: moment is a moment, and by another explanation, the moment required for bending, lower tension is positive (upper compression) and upper tension is negative (lower compression), and its criteria are defined as: the couple moment of the distributed internal force system vertical to the cross section; at present, an adjustable moving rack for bridge hogging moment tensioning needs a hollow tensioning jack when the bridge hogging moment tensioning is carried out.

Patent document CN 2021201699282.3's patent document discloses an adjustable bridge hogging moment is portable rack for stretch-draw, including the under casing, the upper surface of under casing is seted up flutedly, the interior diapire fixedly connected with of recess supports the box, the middle part fixedly connected with electronic hydraulic stem of support box upper surface.

However, the problem that the supporting rod is pulled out manually by workers to be in contact with the ground and is too complex to use is not solved in the prior art, and therefore the moving rack for tensioning the hogging moment of the bridge is provided.

SUMMERY OF THE UTILITY MODEL

In order to overcome current shortcoming, the utility model discloses a bridge hogging moment stretch-draw is with moving gantry, the utility model discloses in the removal of accomplishing the device, when needing to fix the device, can let the turning force of motor drive the supporting leg and move down to alleviate staff's work burden, and this type of mechanical braking stability of motor is high, can highly unify the height of a plurality of supporting legs, accomplish the reinforcement measure of device better.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a movable rack for bridge hogging moment tensioning comprises a base, wherein a bearing platform is arranged above the base, a first fixing block and at least three second fixing blocks are fixedly arranged on the inner wall of the base, the first fixing block and the at least three second fixing blocks are uniformly distributed on two sides in the base, the top end of the first fixing block is rotationally connected with a first screw, the top end of the second fixing block is rotationally connected with a second screw, a motor is arranged above the first screw, the output end of the motor is fixedly connected with a transmission rod, the bottom end of the transmission rod is fixedly connected with the top end of the first screw, and long holes are formed in the base and correspond to the first fixing block and the second fixing blocks; the first screw rod and the second screw rod are both in threaded connection with connecting blocks, one end of each connecting block penetrates through the long hole, and the penetrating ends of the connecting blocks are both fixedly connected with supporting legs; and chain wheels are fixedly arranged on the top end of the second screw rod and the transmission rod and are in transmission connection through a transmission chain.

The bearing platform is provided with a drawer groove, a drawer body is connected in the drawer groove in a sliding mode, and one end, far away from the bearing platform, of the drawer body is fixedly connected with a handle.

The outer box of protection that all fixes being provided with of slot hole, the connecting hole has all been opened to one side that the outer box of protection is close to the base, connecting hole position and size and slot hole are looks adaptation, connecting hole and slot hole intercommunication, the supporting leg top cup joints in the outer box of protection and with the outer box sliding connection of protection.

The bottom ends of the supporting legs are fixedly connected with anti-skidding seats.

The bearing platform is provided with two slide rail grooves which are respectively arranged on two sides of the drawer groove and communicated with the drawer groove, slide blocks are connected in the slide rail grooves in a sliding mode, and the slide blocks are fixedly connected with the drawer body.

Compared with the prior art, the utility model discloses there are following characteristics and beneficial effect:

through the first screw rod, second screw rod, motor, sprocket, drive chain and connecting block and the supporting leg that set up, when the device need fix the device, can let the turning force of motor drive the supporting leg and move down to alleviate staff's work burden, and this type of mechanical braking stability of motor is high, height that can highly unify a plurality of supporting legs.

Drawings

FIG. 1 is a schematic view of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

fig. 3 is a partial enlarged view of C in fig. 2 according to the present invention;

fig. 4 is a partially enlarged view of B in fig. 1 according to the present invention.

Wherein the reference numerals are: 10. a base; 11. a first fixed block; 111. a first screw; 112. a motor; 113. a transmission rod; 114. a sprocket; 12. a second fixed block; 121. a second screw; 13. a long hole; 14. a protective outer box; 141. connecting holes; 15. connecting blocks; 16. supporting legs; 161. an anti-slip seat; 17. a drive chain; 20. a bearing table; 21. a drawer slot; 22. a slide rail groove; 23. a drawer body; 231. a handle; 232. a protective sleeve; 24. a slide block.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

As shown in fig. 1 to 4, the moving rack for bridge hogging moment tensioning of the present embodiment includes a base 10, a bearing platform 20 is disposed above the base 10, a first fixing block 11 and at least three second fixing blocks 12 are fixedly disposed on an inner wall of the base 10, the first fixing block 11 and the at least three second fixing blocks 12 are disposed on a same horizontal plane, the first fixing block 11 and the at least three second fixing blocks 12 are uniformly disposed on two sides of the base 10, a first screw 111 is rotatably connected to a top end of the first fixing block 11 through a bearing, a second screw 121 is rotatably connected to a top end of the second fixing block 12 through a bearing, a motor 112 is disposed above the first screw 111, the motor 112 is fixedly connected to an inner wall of the base 10, an output end of the motor 112 is fixedly connected to a transmission rod 113, a bottom end of the transmission rod 113 is fixedly connected to a top end of the first screw 111, long holes 13 are formed in positions of the base 10 corresponding to the first fixing block 11 and the second fixing block 12, and the long holes 13 are respectively disposed above the first fixing block 11 and the second fixing block 12; the first screw rod 111 and the second screw rod 121 are both in threaded connection with connecting blocks 15, the connecting blocks 15 are arranged on the same horizontal plane, one end of each connecting block 15 penetrates through the long hole 13, the penetrating ends of the connecting blocks 15 are both fixedly connected with supporting legs 16, and the bottom ends of the supporting legs 16 are arranged in a flush manner; the top end of the second screw 121 and the transmission rod 113 are both fixedly provided with chain wheels 114, the chain wheels 114 are arranged on the same horizontal plane, transmission chains 17 are arranged between the chain wheels 114, and the chain wheels 114 are in transmission connection through the transmission chains 17.

In operation, the motor 112 rotates to drive the transmission rod 113 and the first screw 111 to rotate, the chain wheel 114 on the transmission rod 113 drives the chain wheel 114 on the second screw 121 through the transmission chain 17 to drive the second screw 121 to rotate, and the second screw 121 drives the connecting block 15 to move so as to drive the supporting leg 16 to move upwards or downwards.

Further, the bearing platform 20 is provided with a drawer groove 21, the drawer groove 21 is connected with a drawer body 23 in a sliding mode, the drawer body 23 is far away from the handle 231 fixedly connected with one end of the bearing platform 20, the handle 231 is provided with a protective sleeve 232, and the drawer groove 21 can be used for placing sundries and has the function of placing objects.

Further, all be provided with protection outer box 14 outside the slot hole 13, protection outer box 14 and base 10 fixed connection, connecting hole 141 has all been opened to one side that protection outer box 14 is close to base 10, connecting hole 141 position and size and slot hole 13 are the looks adaptation, connecting hole 141 and slot hole 13 intercommunication, slot hole 13 and connecting hole 141 and the 16 lateral walls fixed connection of supporting leg are worn out to connecting block 15 one end, 16 tops of supporting leg cup joint in protection outer box 14 and with protection outer box 14 sliding connection.

Further, 16 equal fixedly connected with antiskid seats 161 in bottom of supporting leg, antiskid seats 161 can increase the adhesive force of supporting leg 16, make the utility model discloses be suitable for more occasions.

Furthermore, two slide rail grooves 22 are formed in the bearing table 20, the two slide rail grooves 22 are respectively arranged on two sides of the drawer groove 21 and communicated with the drawer groove 21, sliding blocks 24 are connected in the slide rail grooves 22 in a sliding mode, and the sliding blocks 24 are fixedly connected with the drawer body 23.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the present application, unless otherwise explicitly stated or limited, the terms "mounted," "disposed," "connected," "fixed," "screwed" and the like are to be understood broadly, and may be, for example, fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; the term "connected" may refer to a direct connection, an indirect connection through an intermediate, a connection between two elements or an interaction relationship between two elements, and unless otherwise specifically defined, the term should be understood as having a specific meaning in the present application by those skilled in the art.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a bridge hogging moment is travelling gantry for stretch-draw, includes base (10), base (10) top is provided with bearing platform (20), its characterized in that: a first fixed block (11) and at least three second fixed blocks (12) are fixedly arranged on the inner wall of the base (10), the first fixed block (11) and the at least three second fixed blocks (12) are uniformly distributed on two sides in the base (10), the top end of the first fixed block (11) is rotatably connected with a first screw rod (111), the top end of the second fixed block (12) is rotatably connected with a second screw rod (121), a motor (112) is arranged above the first screw rod (111), the output end of the motor (112) is fixedly connected with a transmission rod (113), the bottom end of the transmission rod (113) is fixedly connected with the top end of the first screw rod (111), and long holes (13) are formed in positions, corresponding to the first fixed block (11) and the second fixed block (12), on the base (10);

the first screw (111) and the second screw (121) are both in threaded connection with a connecting block (15), one end of the connecting block (15) penetrates through the long hole (13), and the penetrating ends of the connecting block (15) are both fixedly connected with supporting legs (16);

and chain wheels (114) are fixedly arranged on the top end of the second screw rod (121) and the transmission rod (113), and the chain wheels (114) are in transmission connection through a transmission chain (17).

2. The traveling gantry for hogging moment tensioning of bridges according to claim 1, wherein: it has drawer groove (21) to open on bearing platform (20), sliding connection has the drawer body (23) in drawer groove (21), the one end fixedly connected with handle (231) of bearing platform (20) are kept away from to the drawer body (23).

3. The traveling gantry for bridge hogging moment tensioning according to claim 1, wherein: the outer equal fixed outer box (14) of protection that is provided with of slot hole (13), connecting hole (141) have all been opened to one side that outer box (14) of protection are close to base (10), connecting hole (141) position and size and slot hole (13) are the looks adaptation, connecting hole (141) and slot hole (13) intercommunication, supporting leg (16) top cup joint in outer box (14) of protection and with outer box (14) sliding connection of protection.

4. The traveling gantry for hogging moment tensioning of bridges according to claim 1, wherein: the bottom ends of the supporting legs (16) are fixedly connected with anti-skidding seats (161).

5. The traveling gantry for bridge hogging moment tensioning according to claim 2, wherein: two slide rail grooves (22) are formed in the bearing table (20), the two slide rail grooves (22) are respectively arranged on two sides of the drawer groove (21) and communicated with the drawer groove (21), a sliding block (24) is connected in each slide rail groove (22) in a sliding mode, and the sliding block (24) is fixedly connected with the drawer body (23).