CN217359309U - Concrete box girder impact test device - Google Patents
Concrete box girder impact test device Download PDFInfo
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- CN217359309U CN217359309U CN202220941266.6U CN202220941266U CN217359309U CN 217359309 U CN217359309 U CN 217359309U CN 202220941266 U CN202220941266 U CN 202220941266U CN 217359309 U CN217359309 U CN 217359309U
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- concrete box
- box girder
- guide
- sliding seat
- hole
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Abstract
The utility model provides a concrete box girder impact test device, the concrete box girder that will need the test hangs its both ends through the hoist and transports and falls on two supports, later slide drive arrangement drive slide moves to the middle part that is located the concrete box girder to the left side along the guide rail, later clamp plate drive arrangement drive clamp plate moves down to the clamp plate and contacts with the up end of concrete box girder, hoisting accessory upwards lifts by crane the connecting rod, thereby the pouring weight utilizes guide arm II upward movement under the direction in guide pin bushing II, when moving to the top, hoisting accessory contact is to the lifting force of pouring weight, the pouring weight pounces under the action of gravity to the impingement plate, the impingement plate moves down and compression spring, thereby produce the impact force to the concrete box girder, action a plurality of times more than the repetition, thereby can accomplish and carry out the impact test to the concrete box girder.
Description
Technical Field
The utility model relates to a public road bridge roof beam technical field, concretely relates to concrete box girder impact test device.
Background
Concrete box girder wide application is in bridge construction, concrete box girder both ends are passed through the bracket and are supported, concrete box girder need test its compressive load after pouring the manufacturing, but traditional compressive load test utilizes jack to exert pressure to concrete box girder middle part and goes on, but this kind of test mode can only carry out the static load test, in real environment, the vehicle is gone on concrete box girder because road surface fluctuation or vehicle vibration can produce the reversal impact load to concrete box girder, consequently, need carry out the impact test to concrete box girder.
Disclosure of Invention
The utility model discloses an overcome not enough of above technique, provide one kind and can carry out alternating load impact test's device to the concrete box girder.
The utility model overcomes the technical scheme that its technical problem adopted is:
a concrete box girder impact test device, comprising:
the concrete box girder is horizontally arranged along the left and right directions, and the left side and the right side of the lower end of the concrete box girder are respectively located on the support;
the two guide rails are respectively arranged at the front end and the rear end of the concrete box girder and are horizontally arranged along the left-right direction;
the left side and the right side of the front end and the rear end of the sliding seat are respectively provided with a rotating shaft in a rotating way through bearings, and the vehicle is coaxially arranged at the outer side end of the rotating shaft;
the slide seat driving device is used for driving the slide seat to move left and right along the guide rail, and when the slide seat driving device drives the slide seat to move to the rightmost end, the concrete box girder is not positioned in the slide seat;
the device comprises a pressing plate, a guide rod I, a guide sleeve I, a shock plate and a plurality of springs, wherein the pressing plate is horizontally arranged, the upper end of the pressing plate is vertically provided with the guide rod I, the upper end of a sliding seat is provided with the guide sleeve I, the guide rod I is inserted into the guide sleeve I in a sliding mode, the shock plate is horizontally arranged above the pressing plate, and the springs are arranged between the shock plate and the pressing plate;
the pressing plate driving device is arranged on the sliding seat and used for driving the pressing plate to move up and down;
the upper end of the sliding seat is provided with two guide rods II, the guide rods II are inserted into the corresponding guide sleeves II in a sliding manner, and the tops of the two guide rods II are horizontally connected with a connecting rod; and
the support is installed at the upper end of the sliding seat, the lifting device is installed on the support, a through hole III is formed in the support, one end of the steel wire rope I is connected with the connecting rod, the other end of the steel wire rope I penetrates through the through hole III and then is connected with the lifting device, and when the weight block is located at the lowest end, the lower end face of the steel wire rope I is in contact with the upper end face of the impact plate.
Furthermore, the sliding seat driving device comprises a speed reducer II arranged on the sliding seat and a motor II in transmission connection with an input shaft of the speed reducer II, and an output shaft of the speed reducer II is in coaxial transmission connection with a rotating shaft.
Furthermore, above-mentioned clamp plate drive arrangement is including vertical hydro-cylinder of installing on the slide, be provided with through-hole II in the slide, be provided with through-hole I in the pouring weight, be provided with through-hole IV in the impingement plate, through-hole I, through-hole II and the same axle of through-hole IV, the piston rod of hydro-cylinder pass through-hole II, through-hole I and through-hole IV in proper order, and the piston rod head end of the piston rod of hydro-cylinder is fixed with wire rope II, and the lower extreme of wire rope II is fixed in on the clamp plate, and when clamp plate and concrete box girder up end contacted, wire rope II is in lax state.
Furthermore, the hoisting device comprises a speed reducer I installed on the support and a motor I in transmission connection with an input shaft of the speed reducer I, wherein a winding roller is installed on an output shaft of the speed reducer I, and the upper end of a steel wire rope I is wound on the winding roller.
The utility model has the advantages that: the concrete box girder to be tested is hoisted to two ends of the concrete box girder to be tested and falls on two supports through a crane, then a slide seat driving device drives a slide seat to move to the left side along a guide rail to the middle part of the concrete box girder, then a pressing plate driving device drives the pressing plate to move downwards until the pressing plate is contacted with the upper end face of the concrete box girder, a connecting rod is hoisted upwards by the hoisting device, so that a heavy block moves upwards under the guidance of a guide rod II in a guide sleeve II, when the heavy block moves to the top, the hoisting device is contacted with the hoisting force of the heavy block, the heavy block is hammered towards an impact plate under the action of gravity, the impact plate moves downwards and compresses a spring, and impact force is generated on the concrete box girder, the above actions are repeated for a plurality of times, and then the impact test on the concrete box girder can be completed.
Drawings
Fig. 1 is a schematic structural view of the sliding base of the present invention moving out of the concrete box girder;
FIG. 2 is a schematic structural view of the slide base of the present invention moving to the middle of the concrete box girder;
FIG. 3 is a schematic side view of the present invention;
in the figure, 1, a concrete box girder 2, a support 3, a guide rail 4, a sliding seat 5, a support 6, a rotating shaft 7, a wheel 8, a speed reducer I9, a motor I10, a bearing 11, a speed reducer II 12, a motor II 13, a pressure plate 14, an impact plate 15, a spring 16, a weight 17, a through hole I18, a guide sleeve I19, a guide rod I20, a guide sleeve II 21, a connecting rod 22, a through hole II 23, an oil cylinder 24, a guide rod II 25, a through hole III 26, a winding roller 27, a steel wire rope I28, a through hole IV 29 and a steel wire rope II.
Detailed Description
The present invention will be further explained with reference to fig. 1, fig. 2 and fig. 3.
A concrete box girder impact test device, comprising: the concrete box girder 1 is horizontally placed along the left and right directions, and the left side and the right side of the lower end of the concrete box girder 1 are respectively located on the support 2; the two guide rails 3 are respectively arranged at the front end and the rear end of the concrete box girder 1, and the guide rails 3 are horizontally arranged along the left-right direction; the sliding seat 4 is of a door-shaped structure, the left side and the right side of the front end and the rear end of the sliding seat 4 are respectively provided with a rotating shaft 6 in a rotating mode through bearings 10, and the vehicle 7 is coaxially arranged at the outer side end of the rotating shaft 6; the slide seat driving device is used for driving the slide seat 4 to move left and right along the guide rail 3, and when the slide seat driving device drives the slide seat 4 to move to the rightmost end, the concrete box girder 1 is not positioned in the slide seat 4; the pressing plate 13 is horizontally arranged, a guide rod I19 is vertically arranged at the upper end of the pressing plate, a guide sleeve I18 is arranged at the upper end of the sliding seat 4, the guide rod I19 is inserted into the guide sleeve I18 in a sliding mode, the impact plate 14 is horizontally arranged above the pressing plate 13, and a plurality of springs 15 are arranged between the impact plate 14 and the pressing plate 13; the pressing plate driving device is arranged on the sliding seat 4 and used for driving the pressing plate 13 to move up and down; the upper end of the weight 16 is vertically provided with two guide rods II 24, the upper end of the sliding seat 4 is provided with two guide sleeves II 20, the guide rods II 24 are inserted into the corresponding guide sleeves II 20 in a sliding mode, and the tops of the two guide rods II 24 are horizontally connected with a connecting rod 21; and the support 5 is arranged at the upper end of the sliding seat 4, the hoisting device is arranged on the support 5, a through hole III 25 is formed in the support 5, one end of a steel wire rope I27 is connected with the connecting rod 21, the other end of the steel wire rope I passes through the through hole III 25 and then is connected with the hoisting device, and when the weight 16 is positioned at the lowest end, the lower end face of the weight is in contact with the upper end face of the impact plate 14. The concrete box girder 1 to be tested is hoisted to two ends of the concrete box girder 1 to fall on the two supports 2 through a crane, then the slide seat driving device drives the slide seat 4 to move to the left side along the guide rail 3 to be located in the middle of the concrete box girder 1, then the pressing plate driving device drives the pressing plate 13 to move downwards until the pressing plate 13 is contacted with the upper end face of the concrete box girder 1, the hoisting device lifts the connecting rod 21 upwards, the weight 16 moves upwards under the guidance of the guide rod II 24 in the guide sleeve II 20, when the weight moves to the uppermost end, the hoisting device is contacted with the hoisting force of the weight 16, the weight 16 smashes the impact plate 14 under the action of gravity, the impact plate 14 moves downwards and compresses the spring 15, so that impact force is generated on the concrete box girder 1, and the actions are repeated for a plurality of times, so that the impact test on the concrete box girder 1 can be completed.
The sliding seat driving device can be in a structure comprising a speed reducer II 11 arranged on the sliding seat 4 and a motor II 12 in transmission connection with an input shaft of the speed reducer II 11, and an output shaft of the speed reducer II 11 is in coaxial transmission connection with a rotating shaft 6. The motor II 12 rotates, the speed reducer II 11 reduces the speed and amplifies the torque to drive the wheels 7 to rotate, and therefore the sliding seat 4 walks along the guide rail 3.
The pressing plate driving device can be of the following structure and comprises an oil cylinder 23 vertically installed on the sliding seat 4, a through hole II 22 is formed in the sliding seat 4, a through hole I17 is formed in the heavy block 16, a through hole IV 28 is formed in the impact plate 14, the through hole I17, the through hole II 22 and the through hole IV 28 are coaxial, a piston rod of the oil cylinder 23 sequentially penetrates through the through hole II 22, the through hole I17 and the through hole IV 28, a steel wire rope II 29 is fixed to the head end of the piston rod of the oil cylinder 23, the lower end of the steel wire rope II 29 is fixed to the pressing plate 13, and when the pressing plate 13 is in contact with the upper end face of the concrete box girder 1, the steel wire rope II 29 is in a loose state. The piston rod of the oil cylinder 23 extends out, the pressing plate 13 moves downwards under the action of gravity, so that the pressing plate 13 is in contact with the upper end face of the concrete box girder 1, and after the test is finished, the piston rod of the oil cylinder 23 retracts inwards, so that the steel wire rope II 29 is pulled to drive the pressing plate 13 to lift upwards. When the pressing plate 13 is in contact with the upper end face of the concrete box girder 1, the steel wire rope II 29 is in a loose state, the oil cylinder 23 cannot generate upward pulling force on the pressing plate 13, and the force generated by downward impact of the weight 16 cannot be offset by the steel wire rope II 29 and the oil cylinder 23.
Hoisting accessory can be following structure, and it is including installing I8 on support 5, the motor I9 of being connected with I8 input shaft transmission of speed reducer, installs wire winding roller 26 on I8's of speed reducer output shaft, and wire rope I27's upper end twines in wire winding roller 26. Motor I9 rotates, drives winding roller 26 through I8 speed reduction amplification moment of torsion back drive wire rope and rotates, because wire rope I27 twines on winding roller 26, consequently drives weight 16 and shifts up, falls under the action of gravity when the outage of motor I9 back, produces the impact force.
Finally, it should be noted that: 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 described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (4)
1. The utility model provides a concrete box girder impact test device which characterized in that includes:
the concrete box girder (1) is horizontally placed along the left-right direction, and the left side and the right side of the lower end of the concrete box girder (1) are respectively located on the support (2);
the two guide rails (3) are respectively arranged at the front end and the rear end of the concrete box girder (1), and the guide rails (3) are horizontally arranged along the left-right direction;
the sliding seat (4) is of a door-shaped structure, the left side and the right side of the front end and the rear end of the sliding seat (4) are respectively and rotatably provided with a rotating shaft (6) through bearings (10), and the vehicle (7) is coaxially arranged at the outer side end of the rotating shaft (6);
the slide seat driving device is used for driving the slide seat (4) to move left and right along the guide rail (3), and when the slide seat driving device drives the slide seat (4) to move to the rightmost end, the concrete box girder (1) is not positioned in the slide seat (4);
the device comprises a pressing plate (13), a guide rod I (19) is horizontally arranged, the upper end of the pressing plate is vertically provided with the guide rod I (19), the upper end of a sliding seat (4) is provided with a guide sleeve I (18), the guide rod I (19) is inserted into the guide sleeve I (18) in a sliding mode, an impact plate (14) is horizontally arranged above the pressing plate (13), and a plurality of springs (15) are arranged between the impact plate (14) and the pressing plate (13);
the pressing plate driving device is arranged on the sliding seat (4) and is used for driving the pressing plate (13) to move up and down;
the upper end of the heavy block (16) is vertically provided with two guide rods II (24), the upper end of the sliding seat (4) is provided with two guide sleeves II (20), the guide rods II (24) are inserted into the corresponding guide sleeves II (20) in a sliding mode, and the tops of the two guide rods II (24) are horizontally connected with a connecting rod (21); and
the support (5) is installed at the upper end of the sliding seat (4), the lifting device is installed on the support (5), a through hole III (25) is formed in the support (5), one end of a steel wire rope I (27) is connected with the connecting rod (21), the other end of the steel wire rope I (27) penetrates through the through hole III (25) and then is connected with the lifting device, and when the weight block (16) is located at the lowest end, the lower end face of the steel wire rope I (27) is in contact with the upper end face of the impact plate (14).
2. The concrete box girder impact test device according to claim 1, wherein: the sliding seat driving device comprises a speed reducer II (11) arranged on the sliding seat (4) and a motor II (12) in transmission connection with an input shaft of the speed reducer II (11), and an output shaft of the speed reducer II (11) is in coaxial transmission connection with a rotating shaft (6).
3. The concrete box girder impact test device according to claim 1, wherein: the clamp plate driving device comprises an oil cylinder (23) vertically installed on a sliding seat (4), a through hole II (22) is formed in the sliding seat (4), a through hole I (17) is formed in a heavy block (16), a through hole IV (28) is formed in an impact plate (14), the through hole I (17), the through hole II (22) and the through hole IV (28) are coaxial, a piston rod of the oil cylinder (23) sequentially penetrates through holes II (22), I (17) and IV (28), a piston rod head end of the piston rod of the oil cylinder (23) is fixed with a steel wire rope II (29), the lower end of the steel wire rope II (29) is fixed on a clamp plate (13), and when the clamp plate (13) is in contact with the upper end face of a concrete box girder (1), the steel wire rope II (29) is in a loose state.
4. The concrete box beam impact test device of claim 1, wherein: hoisting accessory is including installing I (8) of speed reducer on support (5), motor I (9) of being connected with I (8) input shaft transmission of speed reducer, install wire winding roller (26) on the output shaft of I (8) of speed reducer, the upper end of wire rope I (27) twines in wire winding roller (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220941266.6U CN217359309U (en) | 2022-04-22 | 2022-04-22 | Concrete box girder impact test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220941266.6U CN217359309U (en) | 2022-04-22 | 2022-04-22 | Concrete box girder impact test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217359309U true CN217359309U (en) | 2022-09-02 |
Family
ID=83056845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220941266.6U Active CN217359309U (en) | 2022-04-22 | 2022-04-22 | Concrete box girder impact test device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217359309U (en) |
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2022
- 2022-04-22 CN CN202220941266.6U patent/CN217359309U/en active Active
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