CN211291842U

CN211291842U - Jack prestressing force detection device

Info

Publication number: CN211291842U
Application number: CN202020252714.2U
Authority: CN
Inventors: 王叙娜
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-04
Filing date: 2020-03-04
Publication date: 2020-08-18
Anticipated expiration: 2030-03-04

Abstract

The utility model discloses a jack prestressing force detection device, including device shell, carousel, fixed plate and displacement monitor, bolted connection has prestressing force to detect the piece on the device shell, the meshing is connected with second conical gear on the first conical gear, and second conical gear welds on the top of connecting axle to the connecting axle rotates and connects in the connecting piece, the helicla flute has been seted up on the carousel, the spacing groove has been seted up on the connecting piece, and the stopper block is connected at the spacing inslot to be provided with the grip block on the stopper. This jack prestressing force detection device is provided with the grip block, and under first bevel gear's effect, second bevel gear can drive the carousel through the connecting axle and rotate in the connecting piece, and under the rotation effect of helicla flute, the stopper can be simultaneously to the central motion at the spacing inslot, and then can convenient and fast carry out spacing fixed to the jack, has improved the use high efficiency of device.

Description

Jack prestressing force detection device

Technical Field

The utility model relates to a jack technical field specifically is a jack prestressing force detection device.

Background

The jack is of a great variety, and the prestressing tendons such as steel strand wires that are used for stretch-draw wherein need use prestressing jack, in prestressing jack's production process, need use jack prestressing force detection device to carry out the testing work to the prestressing force of jack, detect the piece through using the jack to prestressing force and stretch, and then detect the prestressing force of jack through detecting tensile length.

Most of the prior jack prestress detection devices have the following problems:

firstly, in the use process of the jack prestress detection device, workers need to detect the jacks one by one, and the jacks are inconvenient to limit and fix;

secondly, when a jack is used for stretching the prestress detection block, the prestress detection block cannot be ensured to be in a linear state in the stretching process, and the detection result can be caused to have errors.

We therefore propose a jack prestress detection device in order to solve the problems set out above.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a jack prestressing force detection device to solve the inconvenient spacing fixed of carrying out to the jack of jack prestressing force detection device on the present market that above-mentioned background art provided, and can not guarantee that prestressing force detection piece is in the problem of rectilinear state at tensile in-process.

In order to achieve the above object, the utility model provides a following technical scheme: a jack prestress detection device comprises a device shell, a rotary table, a fixed plate and a displacement monitor, wherein a prestress detection block is connected to the device shell through a bolt, a connecting piece is connected to the prestress detection block through a bolt, a first bolt is axially connected to the prestress detection block, a first conical gear is welded at the bottom end of the first bolt, a second conical gear is connected to the first conical gear in a meshed mode and is welded at the top end of a connecting shaft, the connecting shaft is rotatably connected into the connecting piece, the rotary table is welded at the bottom end of the connecting shaft and is arranged in the connecting piece, a spiral groove is formed in the rotary table, a limiting block is connected to the inner portion of the spiral groove in a clamped mode, a limiting groove is formed in the connecting piece and is connected to the limiting groove in a clamped mode, a clamping plate is arranged on the limiting block, and a roller is connected, and the last screwed connection of gyro wheel has the fixture block, the last screwed connection of device shell has the fixed plate, and has seted up the draw-in groove in the fixed plate to the fixture block is connected in the draw-in groove, bolted connection has displacement sensor on the connecting piece, bolted connection has the displacement monitor on the device shell, and the device shell upper shaft coupling has the second bolt to the second bolt welding is on the connecting axle.

Preferably, the connecting shaft is fixed at the central part of the rotating disc, the rotating disc is connected with the connecting piece through a bearing, and the diameter of the rotating disc is smaller than that of the connecting piece.

Preferably, the limiting blocks are distributed on the turntable at equal angles, the limiting blocks and the clamping plate are of an integrated structure, and the limiting blocks and the clamping plate are perpendicular to each other.

Preferably, the length of grip block is greater than the height of spacing groove, and the inner wall in spacing groove is laminated with the outer wall of grip block mutually to the width of grip block equals with the width of stopper.

Preferably, the rollers are symmetrically distributed on two sides of the connecting piece, the rollers are in sliding connection with the clamping grooves through the clamping blocks, and the clamping blocks are symmetrically distributed on two sides of the rollers.

Preferably, the displacement sensor and the displacement monitor are located on the same vertical central line, and the width of the displacement monitor is greater than that of the displacement sensor.

Compared with the prior art, the beneficial effects of the utility model are that: this jack prestressing force detection device:

(1) the device is provided with the clamping plate, the second bevel gear can drive the turntable to rotate in the connecting piece through the connecting shaft under the action of the first bevel gear by rotating the first bolt, and the limiting block can move towards the center in the limiting groove simultaneously under the rotating action of the spiral groove, so that the jack can be conveniently and quickly limited and fixed, and the use efficiency of the device is improved;

(2) the device is provided with the draw-in groove, and when the jack passed through the connecting piece and drives prestressing force detection piece and stretch, under the draw-in groove was in the effect, the connecting piece passed through gyro wheel and fixture block can carry out spacing slip in the draw-in groove, and then can guarantee that the connecting piece carries out the straight line and slide, and the bending appears when can effectively avoiding prestressing force detection piece to stretch, and then can guarantee the accuracy that prestressing force detected, has increased the use variety of device.

Drawings

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

FIG. 2 is a schematic side view of the turntable of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2 according to the present invention;

FIG. 4 is a schematic diagram of the structure of the clamping plate of the present invention;

fig. 5 is a schematic view of the structure of the limiting groove of the present invention.

In the figure: 1. a device housing; 2. a prestress detection block; 3. a connecting member; 4. a first bolt; 5. a first bevel gear; 6. a second bevel gear; 7. a connecting shaft; 8. a turntable; 9. a helical groove; 10. a limiting block; 11. a limiting groove; 12. a clamping plate; 13. a roller; 14. a clamping block; 15. a fixing plate; 16. a card slot; 17. a displacement sensor; 18. a displacement monitor; 19. and a second bolt.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, the present invention provides a technical solution: a jack prestress detection device comprises a device shell 1, a prestress detection block 2, a connecting piece 3, a first bolt 4, a first bevel gear 5, a second bevel gear 6, a connecting shaft 7, a rotary table 8, a spiral groove 9, a limiting block 10, a limiting groove 11, a clamping plate 12, a roller 13, a clamping block 14, a fixing plate 15, a clamping groove 16, a displacement sensor 17, a displacement monitor 18 and a second bolt 19, wherein the device shell 1 is in bolted connection with the prestress detection block 2, the prestress detection block 2 is in bolted connection with the connecting piece 3, the prestress detection block 2 is in shaft connection with the first bolt 4, the bottom end of the first bolt 4 is welded with the first bevel gear 5, the first bevel gear 5 is in meshed connection with the second bevel gear 6, the second bevel gear 6 is welded at the top end of the connecting shaft 7, the connecting shaft 7 is rotatably connected in the connecting piece 3, the rotary table 8 is welded at the bottom end of the connecting shaft, and carousel 8 sets up in connecting piece 3, the helicla flute 9 has been seted up on carousel 8, and the block connection has stopper 10 in the helicla flute 9, spacing groove 11 has been seted up on the connecting piece 3, and stopper 10 block is connected in spacing groove 11, and be provided with grip block 12 on the stopper 10, the bottom screwed connection of connecting piece 3 has gyro wheel 13, and screwed connection has fixture block 14 on gyro wheel 13, screwed connection has fixed plate 15 on device shell 1, and draw-in groove 16 has been seted up in the fixed plate 15, and the 14 block of fixture block is connected in draw-in groove 16, bolted connection has displacement sensor 17 on the connecting piece 3, bolted connection has displacement monitor 18 on device shell 1, and there is second bolt 19 shaft coupling on device shell 1, and second bolt 19 welds on connecting axle 7.

Connecting axle 7 is fixed at the central point of carousel 8, and is connected for the bearing between carousel 8 and the connecting piece 3 to the diameter of carousel 8 is less than the diameter of connecting piece 3, can guarantee the stability of carousel 8 work effect in connecting piece 3, has increased the use variety of device.

The stopper 10 is distributed on the turntable 8 at equal angles, the stopper 10 and the clamping plate 12 are integrated, and the stopper 10 and the clamping plate 12 are perpendicular to each other, so that the stability of the connection state between the stopper 10 and the clamping plate 12 can be ensured.

The length of grip block 12 is greater than the height of spacing groove 11, and the inner wall of spacing groove 11 laminates with the outer wall of grip block 12 mutually to the width of grip block 12 equals with the width of stopper 10, can guarantee the stable operating condition of grip block 12 in spacing groove 11, has increased the use high efficiency of device.

The rollers 13 are symmetrically distributed on two sides of the connecting piece 3, the rollers 13 are in sliding connection with the clamping grooves 16 through the clamping blocks 14, and the clamping blocks 14 are symmetrically distributed on two sides of the rollers 13, so that the rollers 13 can drive the connecting piece 3 to move stably.

The displacement sensor 17 and the displacement monitor 18 are located on the same vertical central line, and the width of the displacement monitor 18 is larger than that of the displacement sensor 17, so that the adverse effect of the displacement monitor 18 on the displacement sensor 17 can be effectively avoided.

The working principle is as follows: before the jack prestress detection device is used, the overall condition of the device needs to be checked firstly, and normal work can be determined;

firstly, the top of the jack is placed on the left connecting piece 3, and with reference to fig. 1, fig. 2, fig. 4 and fig. 5, by rotating the first bolt 4, the second bevel gear 6 can drive the turntable 8 to rotate in the connecting piece 3 through the connecting shaft 7 under the action of the first bevel gear 5, the limiting block 10 can simultaneously move towards the center in the limiting groove 11 under the rotating action of the spiral groove 9, and the jack can be conveniently and quickly limited and fixed under the action of the clamping plate 12, and similarly, the tail of the jack is placed on the right connecting piece 3, and the tail of the jack can be limited and fixed by rotating the second bolt 19;

when the jack is used for driving the prestress detection block 2 to stretch through the connecting piece 3, with reference to the figures 1-3, under the action of the clamping groove 16, the connecting piece 3 can perform limited sliding in the clamping groove 16 on the fixing plate 15 through the roller 13 and the clamping block 14, thereby ensuring that the connecting piece 3 slides linearly, effectively avoiding the bending of the prestress detection block 2 when being stretched, further ensuring the accuracy of prestress detection, when the connecting piece 3 moves, under the action of the displacement monitor 18, the tensile length of the prestress detection block 2 can be monitored in real time through the displacement sensor 17 on the connecting piece 3, the above is the working process of the whole device, and the details which are not described in detail in this specification, such as the prestress detection block 2, the displacement sensor 17 and the displacement monitor 18, are all well known in the art to those skilled in the art.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a jack prestressing force detection device, includes device shell (1), carousel (8), fixed plate (15) and displacement monitor (18), its characterized in that: the device is characterized in that a prestress detection block (2) is connected to a shell (1) through a bolt, a connecting piece (3) is connected to the prestress detection block (2) through the bolt, a first bolt (4) is connected to the prestress detection block (2) through a shaft, a first bevel gear (5) is welded at the bottom end of the first bolt (4), a second bevel gear (6) is connected to the first bevel gear (5) in a meshed mode, the second bevel gear (6) is welded at the top end of a connecting shaft (7), the connecting shaft (7) is rotatably connected into the connecting piece (3), a turntable (8) is welded at the bottom end of the connecting shaft (7), the turntable (8) is arranged in the connecting piece (3), a spiral groove (9) is formed in the turntable (8), a limit block (10) is connected to the spiral groove (9) in a clamped mode, and a limit groove (11) is formed in the connecting, and stopper (10) block is connected in spacing groove (11) to be provided with grip block (12) on stopper (10), the bottom screwed connection of connecting piece (3) has gyro wheel (13), and screwed connection has fixture block (14) on gyro wheel (13), there is fixed plate (15) device shell (1) on the screwed connection, and has seted up draw-in groove (16) in fixed plate (15), and fixture block (14) block is connected in draw-in groove (16), bolted connection has displacement sensor (17) on connecting piece (3), bolted connection has displacement monitor (18) on device shell (1), and device shell (1) upper shaft coupling has second bolt (19) to second bolt (19) welding is on connecting axle (7).

2. A jack prestress detecting device according to claim 1, wherein: the connecting shaft (7) is fixed at the central part of the turntable (8), the turntable (8) is connected with the connecting piece (3) through a bearing, and the diameter of the turntable (8) is smaller than that of the connecting piece (3).

3. A jack prestress detecting device according to claim 1, wherein: the limiting blocks (10) are distributed on the turntable (8) at equal angles, the limiting blocks (10) and the clamping plate (12) are of an integrated structure, and the limiting blocks (10) and the clamping plate (12) are perpendicular to each other.

4. A jack prestress detecting device according to claim 1, wherein: the length of grip block (12) is greater than the height of spacing groove (11), and the inner wall of spacing groove (11) is laminated mutually with the outer wall of grip block (12) to the width of grip block (12) equals with the width of stopper (10).

5. A jack prestress detecting device according to claim 1, wherein: the rollers (13) are symmetrically distributed on two sides of the connecting piece (3), the rollers (13) are in sliding connection with the clamping grooves (16) through clamping blocks (14), and the clamping blocks (14) are symmetrically distributed on two sides of the rollers (13).

6. A jack prestress detecting device according to claim 1, wherein: the displacement sensor (17) and the displacement monitor (18) are positioned on the same vertical central line, and the width of the displacement monitor (18) is larger than that of the displacement sensor (17).