CN219475487U - Automatic hammering detection travelling wheel for tunnel lining - Google Patents
Automatic hammering detection travelling wheel for tunnel lining Download PDFInfo
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- CN219475487U CN219475487U CN202320354881.1U CN202320354881U CN219475487U CN 219475487 U CN219475487 U CN 219475487U CN 202320354881 U CN202320354881 U CN 202320354881U CN 219475487 U CN219475487 U CN 219475487U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/20—Hydro energy
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Abstract
The utility model relates to the technical field of tunnel construction quality detection, in particular to an automatic hammering detection travelling wheel for tunnel lining, which comprises a hammering device, an acoustic wave receiving device and two travelling wheels, wherein the hammering device is arranged on the travelling wheel; the hammering device comprises a base, a hammer head, a hammer rod and a compression spring, wherein the base is provided with a first cavity for accommodating the lower part of the hammer rod, the hammer rod is in sliding connection with the base, the hammer head is provided with a hammering position and a retraction position, the compression spring is sleeved outside the hammer rod and is positioned between the hammer head and the base, the lower part of the hammer rod is provided with a rack, a half gear meshed with the rack is arranged in the base, and the base is provided with a driving device for driving the half gear to rotate; the travelling wheels are arranged on two sides of the base and are rotationally connected with the base. When the half gear is meshed with the rack, the half gear rotates to drive the rack to move to drive the hammer rod and the hammer head to retract into the first cavity, the compression spring is compressed, when the half gear rotates to a toothless position, the rack is disengaged, and the resilience force of the compression spring drives the hammer head to periodically hammer.
Description
Technical Field
The utility model relates to the technical field of tunnel construction quality detection, in particular to a tunnel lining automatic hammering detection travelling wheel.
Background
The initial stage of tunnel acoustic vibration method detection application is limited to the condition that an artificial hammer strikes the surface of the secondary lining concrete, the condition of void is manually judged through echoes, the judging result is different from person to person, the method belongs to the field of experience methods, the reliability and the accuracy are low, no data support exists, and effective data and graphic data reports cannot be formed on the detecting result. According to the tunnel void detection automatic hammering instrument, the surface of the secondary lining concrete of the tunnel is automatically hammered through the instrument, so that the concrete is vibrated to generate waves, and the void detection is completed by collecting the waves. And judging whether the secondary lining of the tunnel is hollow or not and the degree of the hollow by picking up the waveform characteristics of the measured waves and picking up the characteristics of the vibration waveform. The automatic hammering instrument for detecting the tunnel void completely replaces an artificial hammer to knock the surface of the high-altitude concrete of the second lining of the tunnel. The automatic hammering instrument solves the problems of time and labor waste and low efficiency of manual hammering and eliminates the high-risk operation difficulty of manual high-altitude operation.
The patent of the utility model with the publication number of CN105044217B discloses a tunnel void detection head, a tunnel void detector and a tunnel void detection method, wherein a hammering component is driven in an electromagnetic mode, an electromagnetic driving device is directly arranged on an automatic hammering instrument for improving electromagnetic transmission efficiency, and when the electromagnetic driving device operates, current noise and electromagnetic waves can be generated to interfere with the operation of wave collecting equipment, so that collected data deviation is caused to influence measurement accuracy.
Disclosure of Invention
The utility model aims to overcome the defects of the situations and provide the tunnel lining automatic hammering detection travelling wheel capable of effectively improving the measurement accuracy.
The aim of the utility model is achieved by the following technical scheme:
a tunnel lining automatic hammering detection travelling wheel comprises a hammering device, an acoustic wave receiving device and at least two travelling wheels; the hammering device comprises a base, a hammer head, a hammer rod and a compression spring, wherein the base is provided with a first cavity for accommodating the lower part of the hammer rod, the hammer rod is in sliding connection with the base, the hammer head is provided with a hammering position and a retraction position, when the hammer head is positioned at the retraction position, the hammer head is positioned in the range of the rim of the travelling wheel, when the hammer head is positioned at the hammering position, the hammer head protrudes out of the range of the rim of the travelling wheel, the compression spring is sleeved outside the hammer rod and is positioned between the hammer head and the base, a rack is arranged at the lower part of the hammer rod, a half gear meshed with the rack is arranged in the base, and the base is provided with a driving device for driving the half gear to rotate; the travelling wheels are arranged on two sides of the base, and are rotatably connected with the base.
Further, the rack is a round rack, and the rack is fixedly arranged at the lower part of the hammer rod.
Further, a sliding rod is fixedly arranged at the bottom of the first cavity, a sliding groove matched with the sliding rod is formed in the lower portion of the hammer rod, and the sliding rod is inserted into the sliding groove and is in sliding connection with the hammer rod.
Further, a first limit ring is arranged at the opening of the sliding groove, and a second limit ring matched with the first limit ring is arranged at one end of the sliding rod positioned inside the hammer rod.
Further, the driving device comprises a motor and a speed reducer which are connected with each other, the motor and the speed reducer are fixed on the side face of the base, and an output shaft of the speed reducer is fixedly connected with the half gear.
Further, the sound wave receiving device comprises a sound wave receiving sensor and a wave detector, wherein the sound wave receiving sensor is fixed on the upper surface of the base through a sensor connecting plate, and a measuring head of the sound wave receiving sensor is arranged towards the hammer head.
Further, the travelling wheel comprises a hub, a triggering device is arranged on one side, close to the base, of the hub on one side of the base, a control switch is arranged on the side, opposite to the triggering device, of the base, the control switch is used for controlling the electrified state of the driving device, and the travelling wheel drives the triggering device to pass through the control switch so as to trigger when rotating.
Further, the running wheel further comprises a tire secured to the hub at the outer periphery thereof by a connection.
Further, the device also comprises a connecting device, wherein the connecting device is arranged at the bottom of the base, and the base is connected with the tunnel void detector through the connecting device.
Compared with the prior art, the utility model has the beneficial effects that:
in the utility model, the rack, the half gear meshed with the rack and the driving device are arranged at the lower part of the hammer rod, the driving device drives the half gear to rotate, when the half gear is meshed with the rack, the half gear rotates to drive the rack to move so as to drive the hammer rod and the hammer head to enter the retracted position, the compression spring is compressed, when the half gear rotates to the toothless position, the rack is disengaged, and the resilience force of the compression spring drives the hammer rod and the hammer head to hammer. Compared with the electromagnetic driving mode in the prior art, the gear-driven hammering device can effectively interfere with electromagnetic interference, and compared with the pneumatic mode, the pneumatic mode needs to be connected with a remote air source interface, so that the pneumatic mode is inconvenient to detect a tunnel with a long stroke. The utility model adopts gear transmission, and the motor and the speed reducer of the driving device can adopt the function of a mobile power supply, thereby being suitable for tunnels with long mileage.
Drawings
The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:
fig. 1 is a schematic view of the overall structure of a tunnel lining automatic hammering detection traveling wheel in the embodiment of the present utility model.
Fig. 2 is a cross-sectional view of a tunnel lining automatic hammer detection traveling wheel in an embodiment of the present utility model.
Fig. 3 is an enlarged view at a in fig. 2.
In the figure: 1. a base; 2. a hammer head; 3. a hammer rod; 4. a compression spring; 5. a rack; 6. a half gear; 7. a first cavity; 8. a slide bar; 9. a chute; 10. a first limit ring; 11. a second limit ring; 12. a motor; 13. a speed reducer; 14. an acoustic wave receiving sensor; 15. a hub; 16. a tire; 17. a triggering device; 18. a control switch; 19. a connecting device; 20. a second cavity.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Specific examples:
as shown in fig. 1, the tunnel lining automatic hammering detection traveling wheel in the embodiment of the utility model comprises a hammering device, an acoustic wave receiving device and at least two traveling wheels.
As shown in fig. 2, the hammering device comprises a base 1, a hammer head 2, a hammer rod 3 and a compression spring 4, wherein a first cavity 7 for accommodating the lower part of the hammer rod 3 is vertically formed in the base 1, an upper end opening of the first cavity 7 is communicated with the outside, the hammer head 2 is fixedly connected to the top of the hammer rod 3, and the lower part of the hammer rod 3 is inserted into the first cavity 7 and is in sliding connection with the base 1. The hammer head 2 has a hammering position and a retracted position, when the hammer head 2 is in the retracted position, the hammer head 2 is positioned within the rim range of the travelling wheel, and when the hammer head 2 is in the hammering position, the hammer head 2 protrudes beyond the rim range of the travelling wheel. The compression spring 4 is sleeved outside the hammer rod 3 and is located between the hammer head 2 and the base 1, and preferably, the upper end and the lower end of the compression spring 4 are fixedly connected with the hammer head 2 and the base 1 respectively.
In this embodiment, as shown in fig. 3, a rack 5 is provided at the lower part of the hammer lever 3, a half gear 6 engaged with the rack 5 is provided in the base 1, and a driving device for driving the half gear 6 to rotate is provided on the base 1. Preferably, the rack 5 is a circular rack, the circular rack is fixedly arranged at the lower part of the hammer rod 3, the circular rack and the hammer rod 3 are integrally arranged, a second cavity 20 for accommodating the half gear 6 is formed in one side of the base 1 and positioned on one side of the hammer rod 3, and one side of the second cavity 20 is opened. The driving device comprises a motor 12 and a speed reducer 13, the motor 12 is connected with the speed reducer 13, the connecting part of the speed reducer 13 is arranged on the base 1 through a bolt and is positioned at the outer side of the opening of the second cavity 20, and the output shaft of the speed reducer 13 is fixedly connected with the half gear 6, so that the motor 12 and the speed reducer 13 can drive the half gear 6 to rotate.
In this embodiment, the motor 12 and the speed reducer 13 drive the half gear 6 to rotate, when the half gear 6 is meshed with the rack 5, the half gear 6 rotates to drive the rack 5 to move so as to drive the hammer rod 3 and the hammer head 2 to enter the retracted position, the compression spring 4 is compressed, when the half gear 6 rotates to the toothless position, the rack 5 is disengaged, and the resilience force of the compression spring 4 ejects the hammer head 2 for hammering.
In the embodiment, a sliding rod 8 is arranged at the bottom of the first cavity 7, a sliding groove 9 matched with the sliding rod 8 is formed in the lower portion of the hammer body, and the sliding rod 8 is inserted into flowers and plants and is in sliding connection with the sliding rod 8. The opening of the chute 9 is provided with a first stop collar 10, and preferably, the first stop collar 10 is fixedly connected with the hammer body after the slide bar 8 is inserted into the chute 9. The end of the slide bar 8 located inside the hammer body is provided with a second stop collar 11 adapted to the first stop collar 10, preferably the second stop collar 11 is integrally provided with the slide bar 8 to prevent the hammer bar 3 from being separated from the base 1 under the action of the compression spring 4. Preferably, the side of the first stop collar 10 and/or the second stop collar 11, which are adjacent to each other, is provided with a buffer layer, thereby generating a buffer effect.
In this embodiment, the acoustic wave receiving apparatus includes an acoustic wave receiving sensor 14, and preferably also includes a detector (not shown). Preferably, the number of acoustic wave receiving sensors 14 is two, and the two acoustic wave receiving sensors 14 are arranged substantially symmetrically on the base 1 in an equidistant manner from the hammer head 2 and on both sides of the hammer shank 3. The sound wave receiving sensor 14 is fixed on the base 1 through a sensor connecting plate, and the measuring head of the sound wave receiving sensor 14 faces to the direction of the hammer head 2, so that the sound wave signal generated by hammering is better received.
In this embodiment, the traveling wheels are disposed on two sides of the base 1, and the specific connection structure is the same as that of the prior art in the background art, and will not be described herein. The travelling wheel comprises a wheel hub 15 and a tire 16, a triggering device 17 is arranged on one side of the wheel hub 15, which is close to the base 1, of the base 1, a control switch 18 is arranged on the side surface of the base 1, which is opposite to the triggering device 17, the control switch 18 is used for controlling the power-on state of the driving device, and the travelling wheel drives the triggering device 17 to pass through the control switch 18 to trigger when rotating. It is easily conceivable that the triggering device 17 is provided only on the inner side of the rim of one of the two running wheels close to the base 1 if the number of running wheels exceeds two. So that the travelling wheel, when rotated, brings the triggering device 17 past the control switch 18 for triggering. Preferably, the control switch 18 is a normally open switch (e.g. a normally open push button switch) and the triggering device 17 preferably comprises a protruding part which is pressed down to be closed when the protruding part passes the control switch 18, so that the motor 12 and the reducer 13 are energized to drive the half gear 6 to rotate one turn.
Preferably, the triggering device 1712 comprises a plurality, in particular depending on the travelling wheel diameter and the required hammering spacing, these triggering devices 17 being arranged at equal intervals at the same radius around the centre of rotation of the travelling wheel. Of course, the control switch 18 is equidistant from the center of rotation by the same radius. The number of hammers is recorded, and the distance of each hammering position from the initial hammering position can be found. If the position of the hammering is judged to be empty, the distance from the initial detection point of the position where the blank exists can be calculated according to the number of the hammering, so that the position of the blank position can be accurately determined. The number of turns and/or angles of travel wheels are recorded, and the tunnel mileage can be calculated.
In this embodiment, the running wheel further comprises a tyre 16, the tyre 16 being secured to the rim at its outer periphery by a connection, which may be a threaded connection.
The automatic hammering detection travelling wheel for tunnel lining in this embodiment further comprises a connecting device 19, preferably, the connecting device 19 is a connecting arm, one end of the connecting arm is connected to the bottom of the base 1 through a bolt, and the other end of the connecting arm is connected with a tunnel void detector through the connecting device 19 such as a bolt, so that the tunnel void detection is performed.
Finally, it should be noted that: the foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. The automatic hammering detection travelling wheel for tunnel lining comprises a hammering device, an acoustic wave receiving device and at least two travelling wheels, and is characterized in that,
the hammering device comprises a base (1), a hammer head (2), a hammer rod (3) and a compression spring (4), wherein the base (1) is provided with a first cavity (7) for accommodating the lower part of the hammer rod (3), the hammer rod (3) is in sliding connection with the base (1), the hammer head (2) is provided with a hammering position and a retraction position, when the hammer head (2) is positioned at the retraction position, the hammer head (2) is positioned in the rim range of the travelling wheel, when the hammer head (2) is positioned at the hammering position, the hammer head (2) protrudes out of the rim range of the travelling wheel, the compression spring (4) is sleeved outside the hammer rod (3) and is positioned between the hammer head (2) and the base (1), the lower part of the hammer rod (3) is provided with a rack (5), a half gear (6) meshed with the rack (5) is arranged in the base (1), and the base (1) is provided with a driving device for driving the half gear (6) to rotate;
the sound wave receiving device is fixedly arranged on the base (1);
the travelling wheels are arranged on two sides of the base (1), and are rotatably connected with the base (1).
2. The tunnel lining automatic hammering detection travelling wheel according to claim 1, characterized in that the rack (5) is a circular rack, and the rack (5) is fixedly connected with the lower part of the hammer rod (3).
3. The tunnel lining automatic hammering detection travelling wheel according to claim 1, characterized in that a sliding rod (8) is fixedly arranged at the bottom of the first cavity (7), a sliding groove (9) matched with the sliding rod (8) is formed in the lower portion of the hammer rod (3), and the sliding rod (8) is inserted into the sliding groove (9) and is in sliding connection with the hammer rod (3).
4. A tunnel lining automatic hammering detection travelling wheel according to claim 3, characterized in that a first limit ring (10) is arranged at the opening of the sliding groove (9), and a second limit ring (11) matched with the first limit ring (10) is arranged at one end of the sliding rod (8) positioned inside the hammer rod (3).
5. Tunnel lining automatic hammering detection travelling wheel according to claim 1, characterized in that the driving device comprises a motor (12) and a speed reducer (13) which are connected with each other, and the motor (12) and the speed reducer (13) are fixed on the side of the base (1), and the output shaft of the speed reducer (13) is fixedly connected with the half gear (6).
6. The tunnel lining automatic hammering detection traveling wheel according to claim 1, characterized in that the sound wave receiving device comprises a sound wave receiving sensor (14) and a wave detector, the sound wave receiving sensor (14) is fixed on the upper surface of the base (1) through a sensor connecting plate, and a measuring head of the sound wave receiving sensor (14) is arranged towards the hammer head (2).
7. Tunnel lining automatic hammering detection travelling wheel according to claim 1, characterized in that it comprises a hub (15), a triggering device (17) is arranged on the side of the hub (15) on the side of the base (1) close to the base (1), a control switch (18) is arranged on the side of the base (1) opposite to the triggering device (17), the control switch (18) is used for controlling the energizing state of the driving device, and the travelling wheel when rotating drives the triggering device (17) to pass through the control switch (18) so as to trigger.
8. The tunnel lining automatic hammer detection travelling wheel according to claim 7, further comprising a tire (16), the tire (16) being fastened to the hub (15) at its outer periphery by a connection.
9. The tunnel lining automatic hammering detection travelling wheel according to claim 1, further comprising a connecting device (19), wherein the connecting device (19) is arranged at the bottom of the base (1), and the base (1) is connected with a tunnel void detector through the connecting device (19).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320354881.1U CN219475487U (en) | 2023-03-01 | 2023-03-01 | Automatic hammering detection travelling wheel for tunnel lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320354881.1U CN219475487U (en) | 2023-03-01 | 2023-03-01 | Automatic hammering detection travelling wheel for tunnel lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219475487U true CN219475487U (en) | 2023-08-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320354881.1U Active CN219475487U (en) | 2023-03-01 | 2023-03-01 | Automatic hammering detection travelling wheel for tunnel lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219475487U (en) |
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2023
- 2023-03-01 CN CN202320354881.1U patent/CN219475487U/en active Active
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