Wrench sleeve with ultrasonic probe

Abstract

The utility model discloses a wrench socket with an ultrasonic probe, which comprises a tightening unit, a support unit and an ultrasonic detection unit, and is characterized in that the tightening unit comprises a hollow wrench socket body; the supporting unit comprises a guide seat and a guide sleeve, the guide seat is connected with the wrench socket body, and the guide sleeve is movably connected with the guide seat, so that the guide sleeve slides in the axis direction of the wrench socket body and rotates around the axis of the guide sleeve; the ultrasonic detection unit comprises an ultrasonic probe and a second magnet which are connected with each other, the ultrasonic probe is connected with the guide sleeve and arranged in the hollow part of the wrench socket body in a penetrating mode, and when the wrench socket body tightens the threaded part, the second magnet is attracted to the threaded part, and pretightening force detection is conducted through the ultrasonic probe. The pre-tightening force of the threaded part can be accurately regulated and controlled in real time, the integration degree is high, the cost is low, and the working efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to threaded part assembly technical field, concretely relates to a wrench sleeve with ultrasonic probe. BACKGROUND

[0002] In the field of contemporary industrial manufacturing and maintenance, it is crucial to ensure the reliability and safety of high-strength threaded part (such as bolt) connection. At present, ultrasonic technology has become the mainstream detection technology for high-strength bolt pretightening force. The existing high-strength bolt installation is generally by torque method: it is difficult to ensure that each bolt can reach the ideal pretightening force level, and additional pretightening force detection is needed after tightening, which is time-consuming and laborious. And there are still the following deficiencies in actual use: 1) Even if the construction torque accuracy is good, the measured high-strength bolt pretightening force still has a large dispersion; 2) After detecting the pretightening force by the sensor, the independent installation tool continues to tighten, which is too low in efficiency. Therefore, the torque method has gradually failed to meet the needs of high-strength bolt installation pretightening force consistency and efficiency. SUMMARY

[0003] The utility model aims at the above problem, proposes a wrench sleeve with ultrasonic probe, which can realize real-time accurate regulation and control of threaded part pretightening force, is integrated and low in cost, and greatly improves the operation efficiency.

[0004] To achieve the above purpose, the technical scheme adopted by the utility model is:

[0005] The utility model proposes a wrench sleeve with ultrasonic probe, which comprises a tightening unit, a supporting unit and an ultrasonic detection unit, wherein:

[0006] The tightening unit comprises a hollow wrench sleeve body;

[0007] The supporting unit comprises a guide seat and a guide sleeve, the guide seat is connected with the wrench sleeve body, the guide sleeve is movably connected with the guide seat, so as to realize the sliding of the guide sleeve along the axial direction of the wrench sleeve body and the rotation of the guide sleeve around its own axis;

[0008] The ultrasonic detection unit comprises an ultrasonic probe and a second magnetic attraction connected with each other, the ultrasonic probe is connected with the guide sleeve and is arranged in the hollow part of the wrench sleeve body, and the second magnetic attraction is adsorbed with the threaded part and is detected by the ultrasonic probe when the wrench sleeve body is tightened.

[0009] Preferably, the supporting unit further comprises a first limiting piece and a second limiting piece arranged on the guide sleeve, and the first limiting piece and the second limiting piece are respectively located on the two sides of the guide seat to avoid the sliding off of the guide sleeve.

[0010] Preferably, the first limiting piece and the second limiting piece are both elastic retaining rings.

[0011] Preferably, the support unit further comprises a first magnetic attraction, which is sleeved outside the guide sleeve and arranged close to the ultrasonic probe.

[0012] Preferably, the ultrasonic probe comprises a probe shell, a connecting seat, an aviation plug female seat, a transducer and a temperature sensor, the probe shell and the aviation plug female seat are connected with the connecting seat, the connecting seat is connected with the guide sleeve, the transducer is connected with the probe shell and located at an end away from the guide sleeve, the temperature sensor is built-in and attached to the probe shell, the transducer and the temperature sensor are further electrically connected with the aviation plug female seat, and a second magnetic attraction is sleeved on the probe shell and arranged close to the transducer.

[0013] Preferably, the transducer is a piezoelectric ceramic wafer, and the aviation plug female seat is arranged in the guide sleeve.

[0014] Preferably, the wrench sleeve body comprises coaxially connected first and second hollow cylinders, the first hollow cylinder is provided with an adaptive hole matched with the threaded part, the second hollow cylinder is used for being adapted with an external tightening tool for screwing, and the guide seat is connected with an end of the second hollow cylinder away from the first hollow cylinder.

[0015] Preferably, the tightening unit further comprises a stopper, which is coaxially sleeved outside the second hollow cylinder.

[0016] Preferably, a plurality of screw holes are formed in the stopper, and the stopper is fixedly connected with the wrench sleeve body by means of screws penetrating through the screw holes.

[0017] Preferably, the guide sleeve is coaxially arranged with the wrench sleeve body.

[0018] Compared with the prior art, the utility model has the advantages of:

[0019] The hollow wrench sleeve body of the utility model can be combined with the support unit and the ultrasonic detection unit, has high space utilization, is helpful to realize miniaturization and light weight, and specifically:

[0020] 1) The ultrasonic probe is moved along the axial direction of the wrench sleeve body to adjust the position of the ultrasonic probe through the cooperation of the guide seat and the guide sleeve, so that the ultrasonic probe is attached to the threaded part to be measured by the second magnetic attraction, and the guide sleeve can also drive the ultrasonic probe to rotate around the axial line of the guide sleeve to adapt to the tightening and pre-tightening force detection of different threaded parts. Through the contact type measurement of the ultrasonic probe and the threaded part, the elongation of the threaded part to be measured can be accurately measured according to the emitted and received ultrasonic signals, so that the current pre-tightening force value can be directly obtained, the real-time monitoring and accurate regulation and control of the pre-tightening force of the threaded part to be measured are realized, and complicated pre-tightening force checking is not needed after the operation, so that the operation efficiency and accuracy are greatly improved.

[0021] 2) It is convenient for subsequent intelligent development, and automatic saving of pre-tightening force data of each tightening is realized through connection with an external display device, which provides detailed reference basis for future maintenance and fault elimination, and is beneficial to enhancing the intelligent level of equipment management;

[0022] 3) The first magnetic attraction helps to attract and limit the ultrasonic probe and the guide seat, avoids the ultrasonic probe from sliding and colliding along the axis direction of the wrench sleeve body, improves the operation convenience, and improves the operation convenience. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is a structure schematic view of the wrench sleeve with the ultrasonic probe of the utility model;

[0024] Figure 2 It is a sectional view of the wrench sleeve with the ultrasonic probe of the utility model;

[0025] Figure 3 It is a left view of the wrench sleeve with the ultrasonic probe of the utility model;

[0026] Figure 4 It is a right view of the wrench sleeve with the ultrasonic probe of the utility model;

[0027] Figure 5 It is a front view of the wrench sleeve with the ultrasonic probe of the utility model;

[0028] Figure 6 It is a structure schematic view of the ultrasonic detection unit of the utility model.

[0029] The figure mark explanation: 1, the tightening unit;2, the support unit;3, the ultrasonic detection unit;11, the first hollow cylinder;12, the second hollow cylinder;13, the stop block;131, the screw hole;21, the guide seat;22, the guide sleeve;23, the first limiting piece;24, the second limiting piece;25, the first magnetic attraction;26, the copper stud;31, the probe shell;32, the connecting seat;33, the aviation plug female seat;34, the transducer;35, the temperature sensor;36, the second magnetic attraction. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art in the art of this application. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0032] like Figures 1-6 As shown, a wrench socket with an ultrasonic probe includes a tightening unit 1, a supporting unit 2 and an ultrasonic detection unit 3, wherein:

[0033] The tightening unit 1 includes a hollow wrench socket body;

[0034] The support unit 2 includes a guide seat 21 and a guide sleeve 22. The guide seat 21 is connected to the wrench socket body, and the guide sleeve 22 is movably connected to the guide seat 21, so that the guide sleeve 22 can slide along the axis of the wrench socket body and rotate around its own axis.

[0035] The ultrasonic detection unit 3 includes an ultrasonic probe and a second magnetic attraction 36 that are connected to each other. The ultrasonic probe is connected to the guide sleeve 22 and is passed through the hollow part of the wrench socket body. When the wrench socket body tightens the threaded part, the second magnetic attraction 36 is adsorbed by the threaded part and the ultrasonic probe performs pre-tightening force detection.

[0036] The wrench socket of the present application is preferably used for the installation of high-strength bolts and ensures a consistent pre-tightening force. The hollow setting of the wrench socket body can be combined with the support unit 2 and the ultrasonic detection unit 3, which has high space utilization and helps to achieve small and lightweight.

[0037] Specifically, the ultrasonic probe is fixed to the wrench socket body through the guide seat 21 and the guide sleeve 22, and can move along the axial direction of the wrench socket body. The wrench socket body, the guide seat 21, the guide sleeve 22 and the ultrasonic probe are coaxially arranged to adjust the position of the ultrasonic probe to ensure that the ultrasonic probe is adsorbed by the second magnetic attraction 36 and attached to the threaded part to be tested, and the guide sleeve 22 can also drive the ultrasonic probe to rotate around the axis of the guide sleeve 22 itself to adapt to the tightening and pre-tightening force detection of different threaded parts. The threaded parts can be nuts, bolts, screws, etc.

[0038] The ultrasonic probe can emit and receive ultrasonic signals, accurately measuring the elongation of the threaded component and thus directly obtaining the current preload force. For example, when the second magnetic attraction 36 is attracted to the threaded component, the ultrasonic probe and the threaded component perform contact measurement. This allows for real-time and precise control of the threaded component's preload force, resulting in high integration and low cost, significantly improving operational efficiency.

[0039] In an embodiment, the support unit 2 further comprises a first limiting member 23 and a second limiting member 24 arranged on the guide sleeve 22, and the first limiting member 23 and the second limiting member 24 are respectively arranged on both sides of the guide seat 21 to avoid the guide sleeve 22 from slipping off.

[0040] In an embodiment, the first limiting member 23 and the second limiting member 24 are both elastic retaining rings. Alternatively, they can also be other parts with any shape.

[0041] In an embodiment, the support unit 2 further comprises a first magnetic attraction 25 arranged on the guide sleeve 22 and close to the ultrasonic probe. The first magnetic attraction 25 helps to limit the ultrasonic probe by magnetic attraction, so as to avoid the ultrasonic probe from sliding along the axis of the wrench sleeve body and colliding with or affecting the operation. The first magnetic attraction 25 can be a ring-shaped magnetic attraction.

[0042] In an embodiment, the ultrasonic probe comprises a probe shell 31, a connecting seat 32, an aviation plug female seat 33, a transducer 34 and a temperature sensor 35. The probe shell 31 and the aviation plug female seat 33 are connected with the connecting seat 32, the connecting seat 32 is connected with the guide sleeve 22, the transducer 34 is connected with the probe shell 31 and located at an end away from the guide sleeve 22, the temperature sensor 35 is built-in and attached to the probe shell 31, the transducer 34 and the temperature sensor 35 are electrically connected with the aviation plug female seat 33, and a second magnetic attraction 36 is arranged on the probe shell 31 and close to the transducer 34.

[0043] The transducer can emit and receive ultrasonic signals, and the ultrasonic probe is integrated with the temperature sensor 35. When measuring the pretightening force of the threaded part, the temperature information is also collected, i.e. the temperature of the probe shell 31 is measured by the temperature sensor 35, so as to determine the temperature difference of the threaded part and perform temperature compensation on the measurement result. For example, the ultrasonic probe can accurately measure the elongation of the threaded part, and the temperature difference deformation of the threaded part material is deducted, so as to directly calculate the current pretightening force value and eliminate the influence of temperature on the measurement result, which helps to improve the measurement accuracy.

[0044] Further, the ultrasonic probe is connected with external display devices such as computers and tablets through the aviation plug female seat 33. The operator only needs to adjust the fastening force in time according to the data displayed on the external display device through the wrench sleeve body, so as to ensure that each threaded part reaches the set pretightening force standard, without the need for subsequent tedious inspection, which greatly improves the work efficiency and accuracy. The second magnetic attraction 36 can be a ring-shaped magnetic attraction.

[0045] In an embodiment, the transducer 34 is a piezoelectric ceramic wafer, and the aviation plug female seat 33 is arranged in the guide sleeve 22. This helps the cable connected with the aviation plug female seat 33 to move synchronously with the guide sleeve 22, so as to avoid abrasion.

[0046] In an embodiment, the wrench sleeve body comprises coaxially connected first hollow cylinder 11 and second hollow cylinder 12, the first hollow cylinder 11 is provided with an adapter hole matched with the threaded part, the second hollow cylinder 12 is used for matching with an external tightening tool for screwing, and the guide seat 21 is connected with one end of the second hollow cylinder 12 away from the first hollow cylinder 11. The wrench sleeve body can also be any structure of the wrench sleeve tool in the prior art, and the external tightening tool can be any tool in the prior art, such as a hydraulic wrench, which can be automatically adjusted according to the pre-tightening force fed back by the ultrasonic probe.

[0047] In an embodiment, the tightening unit 1 further comprises a stopper 13 coaxially sleeved outside the second hollow cylinder 12. The stopper 13 can be of any shape and structure, and is used for preventing slipping when the external tightening tool is screwed. In this embodiment, the stopper 13 is of a ring structure sleeved outside the second hollow cylinder 12.

[0048] In an embodiment, a plurality of screw holes 131 are formed in the stopper 13, and the stopper 13 is fixed by being screwed with the wrench sleeve body. Alternatively, the stopper 13 can also be fixed by other ways known to those skilled in the art.

[0049] In an embodiment, the guide seat 21 is connected with the wrench sleeve body by a copper stud 26, and the guide sleeve 22 is coaxially arranged with the wrench sleeve body. Different height copper studs can be replaced to match different height threaded parts. It is easy to understand that the guide seat 21 and the wrench sleeve body can also be connected by a screw, which is a known technology to those skilled in the art, and will not be described here.

[0050] Working principle:

[0051] When no tightening operation is performed, the ultrasonic probe can be pre-positioned by being attracted by the first magnetic attraction 25 to the guide seat 21, so as to avoid the ultrasonic probe from sliding along the axis direction of the wrench sleeve body. When the tightening operation is performed, the wrench sleeve body is sleeved on the threaded part, the ultrasonic probe is pushed to be close to the threaded part and is in contact by being attracted, at this time, the ultrasonic probe can accurately measure the elongation of the threaded part, so as to directly obtain the current pre-tightening force value, when the pre-tightening force needs to be adjusted, the wrench sleeve body is screwed according to the real-time measured pre-tightening force to adjust to meet the requirements. For example, when the threaded part is a nut and needs to be screwed, the wrench sleeve body is matched with the nut to drive the nut to rotate synchronously, the ultrasonic probe is attracted to the bolt and is fixed, that is, the wrench sleeve body and the ultrasonic probe rotate relatively. When the threaded part is a bolt and needs to be screwed, the wrench sleeve body is matched with the bolt to drive the bolt to rotate synchronously, the ultrasonic probe is attracted to the bolt and is fixed, that is, the wrench sleeve body and the ultrasonic probe are relatively stationary.

[0052] Any technical features in the above-described embodiments can be combined in any manner, and for the sake of brevity, not all possible combinations are described, however, any combination of the technical features is considered to be within the scope of the present disclosure.

[0053] The above-described embodiments are merely illustrative and are not to be understood as limiting the scope of the application. It is to be understood that variations and modifications of the embodiments can be made by those skilled in the art without departing from the scope of the application. Accordingly, the scope of the application is to be interpreted in the broadest manner consistent with the principles and spirit of the application.

Claims

1. A wrench sleeve with an ultrasonic probe, characterized by: The wrench sleeve with ultrasonic probe comprises a tightening unit (1), a supporting unit (2) and an ultrasonic detection unit (3), wherein: The tightening unit (1) comprises a hollow wrench sleeve body; The supporting unit (2) comprises a guide seat (21) and a guide sleeve (22), the guide seat (21) is connected with the wrench sleeve body, and the guide sleeve (22) is movably connected with the guide seat (21), so as to realize the sliding of the guide sleeve (22) along the axial direction of the wrench sleeve body and the rotation of the guide sleeve (22) around its own axis; The ultrasonic detection unit (3) comprises an ultrasonic probe and a second magnetic attraction (36) connected with each other, the ultrasonic probe is connected with the guide sleeve (22) and penetrates the hollow part of the wrench sleeve body, when the wrench sleeve body is tightened with a threaded part, the second magnetic attraction (36) is attracted to the threaded part and the pre-tightening force is detected by the ultrasonic probe.

2. The ultrasonic probe-equipped wrench case according to claim 1, wherein: The supporting unit (2) further comprises a first limiting piece (23) and a second limiting piece (24) arranged on the guide sleeve (22), the first limiting piece (23) and the second limiting piece (24) are respectively located on both sides of the guide seat (21) to avoid the guide sleeve (22) from slipping off.

3. The ultrasonic probe-equipped wrench case according to claim 2, wherein: The first limiting piece (23) and the second limiting piece (24) are both elastic retaining rings.

4. The ultrasonic probe-equipped wrench case according to claim 1, wherein: The supporting unit (2) further comprises a first magnetic attraction (25), the first magnetic attraction (25) is sleeved outside the guide sleeve (22) and is arranged close to the ultrasonic probe.

5. The ultrasonic probe-equipped wrench case according to claim 1, wherein: The ultrasonic probe comprises a probe shell (31), a connecting seat (32), an aviation plug female seat (33), a transducer (34) and a temperature sensor (35), the probe shell (31) and the aviation plug female seat (33) are both connected with the connecting seat (32), the connecting seat (32) is connected with the guide sleeve (22), the transducer (34) is connected with the probe shell (31) and is located at one end away from the guide sleeve (22), the temperature sensor (35) is built-in and attached to the probe shell (31), the transducer (34) and the temperature sensor (35) are further electrically connected with the aviation plug female seat (33), and the second magnetic attraction (36) is sleeved on the probe shell (31) and arranged close to the transducer (34).

6. The ultrasonic probe-equipped wrench case according to claim 5, wherein: The transducer (34) is a piezoelectric ceramic wafer, and the aviation plug female seat (33) penetrates the guide sleeve (22).

7. The ultrasonic probe-equipped wrench case according to claim 1, wherein: The wrench sleeve body comprises coaxially connected first hollow cylinder (11) and second hollow cylinder (12), the first hollow cylinder (11) is provided with an adapter hole matched with the threaded part, the second hollow cylinder (12) is used for adapting with an external tightening tool for screwing, and the guide seat (21) is connected with one end of the second hollow cylinder (12) away from the first hollow cylinder (11).

8. The ultrasonic probe-equipped wrench case according to claim 7, wherein: The tightening unit (1) further comprises a stop block (13), the stop block (13) is coaxially sleeved outside the second hollow cylinder (12).

9. The ultrasonic probe-equipped wrench case according to claim 8, wherein: A plurality of screw holes (131) are formed in the stopper (13), and the stopper (13) is fixed on the wrench sleeve body by means of screws passing through the screw holes (131).

10. The ultrasonic probe-equipped wrench case according to claim 1, wherein: The guide seat (21) is connected with the wrench sleeve body by means of copper studs (26), and the guide sleeve (22) is coaxially arranged with the wrench sleeve body.

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