Weld joint detection tool for cantilever crane shaft sleeve

Abstract

The embodiment of the utility model provides a welding seam detection tool for a cantilever crane shaft sleeve, which relates to the technical field of welding seam detection and comprises a supporting assembly, a detection assembly and at least one first elastic piece. A mounting groove is formed in the supporting assembly, at least two protruding parts are arranged on the peripheral side of the supporting assembly at intervals, and each protruding part is used for abutting against the inner wall of a to-be-detected hole in the arm support shaft sleeve. And the detection assembly is arranged in the mounting groove, is provided with a contact part, and is connected with the supporting assembly through a first elastic piece. When the supporting assembly is inserted into a to-be-detected hole with a welding seam, the first elastic piece drives the detection assembly to move in the radial direction of the to-be-detected hole so that the contact part can abut against the inner wall of the to-be-detected hole. According to the welding seam detection tool provided by the embodiment of the invention, the contact part is tightly propped against the inner wall of the circular hole, and the at least two convex parts are tightly propped against the inner wall of the circular hole, so that supporting points are increased, the contact part can be continuously and tightly attached to the inner wall, and the accuracy of a detection result is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of weld detection, and in particular to a weld detection tool for a boom bracket shaft sleeve. BACKGROUND

[0002] At present, a concrete pump truck is usually used in construction, and has a boom bracket. In order to realize stable rotation, a shaft sleeve is generally arranged at a rotating joint of the boom bracket, that is, the shaft sleeve is inserted into the boom bracket, and a weld is welded around the connection between the shaft sleeve and the boom bracket. After the welding is completed, a defect detection needs to be performed on the weld, for example, an ultrasonic detector is inserted into a hole of the shaft sleeve to detect the weld on the inner wall.

[0003] In the related art, a tool such as an endoscope is inserted into an inner hole of the shaft sleeve to detect the weld by a person, and a circle of welds on the inner wall is detected by rotating the tool.

[0004] However, the tool is prone to shaking during rotation, thereby affecting the accuracy of the detection result. UTILITY MODEL CONTENT

[0005] Therefore, the present application provides a weld detection tool for a boom bracket shaft sleeve to solve the problem that the existing tool for detecting the weld in the hole of the boom bracket shaft sleeve is prone to shaking and affects the detection result.

[0006] The present application provides a weld detection tool for a boom bracket shaft sleeve, comprising a support assembly, a detection assembly, and at least one first elastic member;

[0007] The support assembly has a mounting groove, and at least two protruding portions are arranged at intervals on the side of the support assembly, each protruding portion being used to abut against the inner wall of the hole to be detected;

[0008] The detection assembly is arranged in the mounting groove, and has a contact portion, and the detection assembly is connected to the support assembly by the first elastic member;

[0009] The first elastic member is configured to drive the detection assembly to move along the radial direction of the hole to be detected when the support assembly is inserted into the hole to be detected of the boom bracket shaft sleeve having a weld, so that the contact portion abuts against the inner wall of the hole to be detected.

[0010] In a possible implementation, the number of protruding portions is at least three, at least one protruding portion is located on the side away from the contact portion, and at least two protruding portions are respectively located on the two sides of the contact portion.

[0011] In a possible implementation, each protruding portion is arranged in an annular array.

[0012] In a possible implementation, at least one elastic component is arranged on each protruding portion, and each elastic component is used to abut against the inner wall of the hole to be detected.

[0013] In a possible implementation, the elastic component comprises a mounting seat, a second elastic piece and a rolling piece, the mounting seat is provided with a first mounting hole, and the second elastic piece and the rolling piece are arranged in the first mounting hole.

[0014] One end of the second elastic piece abuts against the bottom surface of the first mounting hole, and the other end of the second elastic piece abuts against the rolling piece, and the rolling piece is used to rollingly contact the inner wall of the hole to be detected.

[0015] The protruding portion is provided with a second mounting hole, and the mounting seat is correspondingly inserted into the second mounting hole.

[0016] In a possible implementation, the support assembly comprises a support rod and a bushing, and the mounting groove is arranged on the support rod.

[0017] The bushing is sleeved on the support rod, and each protruding portion is located on the circumferential side of the bushing.

[0018] In a possible implementation, the detection assembly comprises a probe and a wedge connected to one side of the probe, and the probe and the wedge are located in the mounting groove.

[0019] The probe is connected with the first elastic piece, and the contact portion is located on the side of the wedge away from the probe.

[0020] In a possible implementation, at least one connecting piece is further included, the support rod is provided with at least one guide hole, the guide hole is communicated with the mounting groove and extends along the moving direction of the detection assembly.

[0021] The connecting piece is slidingly arranged in the guide hole and connected with the probe, and the connecting piece is used to limit the moving distance of the probe and the wedge.

[0022] In a possible implementation, a positioning assembly is further included, and the positioning assembly comprises a positioning piece and a locking piece.

[0023] The positioning piece is arranged on the support rod and moves along the extension direction of the support rod, and the positioning piece is used to limit the depth of the support assembly inserted into the hole to be detected.

[0024] The locking piece is connected to one of the positioning piece and the support rod and is used to limit the movement of the positioning piece.

[0025] In a possible implementation, the positioning piece comprises a positioning seat and a plurality of positioning claws, the locking piece is connected to the positioning seat, and each positioning claw is distributed on the circumferential side of the support rod and connected with the positioning seat.

[0026] The positioning claws extend towards one side of the protruding portions and are spaced apart from the support rods, and each positioning claw is used for contacting and positioning the outer periphery of the part of the arm support shaft sleeve at the end of the to-be-detected hole.

[0027] The welding seam detection tool for the arm support shaft sleeve provided by the present application comprises a support assembly, a detection assembly and at least one first elastic member, the installation groove is arranged on the support assembly for accommodating the detection assembly and the first elastic member, and at least two protruding portions are arranged at intervals on the circumferential side of the support assembly, each protruding portion is used for abutting against the inner wall of the to-be-detected hole, the detection assembly is arranged in the installation groove, the detection assembly is provided with a contact portion, the detection assembly is connected with the support assembly through the first elastic member, and when the support assembly is inserted into the to-be-detected hole on the arm support shaft sleeve, the detection assembly is driven to move along the radial direction of the to-be-detected hole through the first elastic member, so that the contact portion abuts against the inner wall of the to-be-detected hole. Therefore, the welding seam detection tool for the arm support shaft sleeve provided by the present application abuts against the inner wall of the to-be-detected hole through the contact portion on one side and through the at least two protruding portions on the other side, the support points are increased, the contact portion can continuously and closely abut against the inner wall of the to-be-detected hole, and thus the accuracy of the detection result is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0028] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative labor.

[0029] Figure 1 The structural schematic diagram of the welding seam detection tool for the arm support shaft sleeve provided by the present application is shown in the figure.

[0030] Figure 2 The structural schematic diagram of the welding seam detection tool for the arm support shaft sleeve provided by the present application is shown in the figure. Figure 1 The sectional view along the A-A section in the figure.

[0031] Figure 3 The sectional view along the A-A section in the figure. Figure 1 The sectional view along the B-B section in the figure.

[0032] Figure 4 The sectional view along the B-B section in the figure. Figure 1 The sectional view along the C-C section in the figure.

[0033] Figure 5 The sectional view along the C-C section in the figure. Figure 1 The sectional view along the D-D section in the figure.

[0034] Figure 6 The sectional view along the D-D section in the figure. Figure 1 The partial exploded structural schematic diagram in the figure.

[0035] REFERENCE SIGNS:

[0036] 10: hole to be detected;

[0037] 100: support assembly;

[0038] 101: mounting groove;

[0039] 102: protruding part;

[0040] 103: elastic assembly;

[0041] 1031: mounting seat;

[0042] 1032: second elastic member;

[0043] 1033: rolling member;

[0044] 104: second mounting hole;

[0045] 110: support rod;

[0046] 111: guide hole;

[0047] 120: bushing;

[0048] 200: detection assembly;

[0049] 201: contact part;

[0050] 210: probe;

[0051] 220: wedge block;

[0052] 300: first elastic member;

[0053] 400: connecting member;

[0054] 500: positioning assembly;

[0055] 501: avoiding space;

[0056] 510: positioning member;

[0057] 511: positioning seat;

[0058] 512: positioning claw;

[0059] 520: locking member. DETAILED DESCRIPTION

[0060] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The description of the exemplary embodiments is intended to apply to any embodiment of the application, unless specifically stated otherwise. It is to be understood that other embodiments can be utilized, and structural or procedural changes can be made without departing from the scope of the present application. Therefore, the following detailed description is not intended to be limiting.

[0061] The terms "first", "second", "third", "fourth" and the like in the description and in the claims, if any, of the present application, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the use of the terms so termed is interchangeable under appropriate circumstances such that the descriptive

[0062] As mentioned in the background section, after the detection tool is inserted into the round hole of the shaft sleeve of the arm support, for example, the inner diameter of the round hole is 40mm, the detection tool is prone to deflection, displacement or shaking during the rotation of the detection tool due to the lack of support or positioning, thereby affecting the accuracy of the detection result and the detection stability is poor.

[0063] In view of the above problems in the prior art, the present application provides a welding seam detection tool for an arm support shaft sleeve. The welding seam detection tool for the arm support shaft sleeve provided by the present application comprises a support assembly, a detection assembly and at least one first elastic member. The support assembly is provided with a mounting groove for accommodating the detection assembly and the first elastic member, and at least two protruding portions are arranged at intervals on the circumferential side of the support assembly, each protruding portion being used for abutting against the inner wall of the hole to be detected. The detection assembly is arranged in the mounting groove and has a contact portion. The detection assembly is connected to the support assembly through the first elastic member. When the support assembly is inserted into the hole to be detected on the arm support shaft sleeve, the detection assembly is driven by the first elastic member to move along the radial direction of the hole to be detected, so that the contact portion abuts against the inner wall of the hole to be detected on one side and the at least two protruding portions abut against the inner wall of the hole to be detected on the other side. The number of support points is increased, the contact portion can be continuously and closely attached to the inner wall of the hole to be detected, and the accuracy of the detection result is ensured.

[0064] The technical solutions of the present application are described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described in detail in some examples.

[0065] The welding seam detection tool for the arm support shaft sleeve provided in the embodiments of the present application is used for detecting the welding seam of the inner hole of the shaft sleeve on the arm support. The arm support can be the arm support on a pump truck or the arm support on heavy machinery such as a crane or an excavator. The arm supports are connected through the cooperation of the shaft sleeves and the shafts to realize stable rotation.

[0066] Please refer to Figures 1-6 The welding seam detection tool for the arm support shaft sleeve provided in the embodiments of the present application includes a support assembly 100, a detection assembly 200, and at least one first elastic member 300.

[0067] The support assembly 100 has a mounting groove 101. At least two protruding portions 102 are arranged at intervals on the circumferential side of the support assembly 100. Each protruding portion 102 is used for abutting against the inner wall of the to-be-detected hole 10.

[0068] The detection assembly 200 is arranged in the mounting groove 101. The detection assembly 200 has a contact portion 201. The detection assembly 200 is connected to the support assembly 100 through the first elastic member 300.

[0069] The first elastic member 300 is configured to drive the detection assembly 200 to move along the radial direction of the to-be-detected hole 10 when the support assembly 100 is inserted into the to-be-detected hole 10 having a welding seam on the arm support shaft sleeve, so that the contact portion 201 abuts against the inner wall of the to-be-detected hole 10.

[0070] The support assembly 100 in the embodiments is used at least for mounting the detection assembly 200 and the first elastic member 300. One side of the support assembly 100 has a mounting groove 101, such as an open groove. The support assembly 100 is roughly in the form of a rod and can be assembled from multiple components or can be an integrally formed structure.

[0071] The circumferential side of the support assembly 100 is provided with multiple protruding portions 102, such as protruding strips, or other structures. The multiple protruding portions 102 can be arranged in a ring array around the support assembly 100. The protruding portions 102 can directly contact the inner wall of the to-be-detected hole 10 on the arm support shaft sleeve or indirectly contact the inner wall of the to-be-detected hole 10 on the arm support shaft sleeve through other components.

[0072] The detection assembly 200 in the embodiments is used for detecting the welding seam and can be composed of an ultrasonic probe and a wedge. The detection assembly 200 is arranged in the mounting groove 101 and can move along the radial direction of the to-be-detected hole 10 on the arm support shaft sleeve, such as along the radial direction of the to-be-detected hole 10 on the arm support shaft sleeve. Figure 2The probe moves along the Y-axis. One side of the detection assembly 200 has a contact portion 201, which can be an arc surface adapted to the inner wall of the hole 10 to be detected. Additionally, the ultrasonic probe can communicate with the host computer via a wireless module or a wired connection to display the detection results.

[0073] In this embodiment, the first elastic element 300 is used to apply a radially outward elastic force to the detection component 200, and it can be a compression spring. Figure 3 As shown, both the support component 100 and the detection component 200 can be provided with limiting holes. The first elastic member 300 is located between the support component 100 and the detection component 200, and both ends of the first elastic member 300 are respectively placed in the limiting holes.

[0074] For example, Figure 6 As shown, four first elastic elements 300 can be arranged in a rectangular pattern to achieve a more balanced force distribution. Additionally, a limiting component can be provided between the support assembly 100 and the detection assembly 200 to restrict the movement distance of the detection assembly 200 and prevent it from detaching. It should be noted that the number of first elastic elements 300 and the preset elastic force can be determined according to actual needs.

[0075] Specifically, such as Figure 3 As shown, after the boom and bushing are welded, when the support assembly 100 is inserted into the test hole 10 on the boom bushing, each protrusion 102 is pressed against the inner wall of the test hole 10. The first elastic element 300 drives the detection assembly 200 to move radially along the test hole 10. Figure 3 The contact portion 201 moves in the opposite direction of the Y-axis to press against the inner wall of the hole 10 to be inspected, so as to inspect the weld on the inner wall.

[0076] Compared to existing technologies where the ultrasonic detector, facing away from the wedge, only has one support point to contact the inner wall of the hole 10 to be inspected on the boom bushing, the weld inspection tool for the boom bushing in this embodiment has one side pressed against the inner wall of the hole 10 to be inspected via a contact portion 201, and the other side pressed against the inner wall of the hole 10 to be inspected via at least two protrusions 102. This increases the support point, ensuring that the contact portion 201 remains in close contact with the inner wall of the hole 10 to be inspected, thereby guaranteeing the accuracy of the inspection results. In particular, for the hole 10 to be inspected being a round hole, it is less prone to swaying during the rotation of the support assembly 100, resulting in greater stability.

[0077] It should be noted that at least one protrusion 102 is located on the side opposite to the contact portion 201, and each protrusion 102 and contact portion 201 is preferably evenly distributed around the periphery of the support assembly 100, which is more reasonable for the position of the inner wall of the hole to be detected 10 to be pressed against.

[0078] Therefore, the weld inspection tool for boom bushing provided in this application embodiment includes a support assembly 100, an inspection assembly 200, and at least one first elastic element 300. A mounting groove 101 is provided on the support assembly 100 to accommodate the inspection assembly 200 and the first elastic element 300. At least two protrusions 102 are spaced apart on the periphery of the support assembly 100, each protrusion 102 being used to press against the inner wall of the hole 10 to be inspected. The inspection assembly 200 is disposed within the mounting groove 101, and the inspection assembly 200 has a contact portion 201. The first elastic element 300 is connected to the support assembly 100. When the support assembly 100 is inserted into the test hole 10 on the arm bushing, the first elastic element 300 drives the test assembly 200 to move radially along the test hole 10 so that the contact part 201 is pressed against the inner wall of the test hole 10. One side is pressed against the inner wall of the test hole 10 through the contact part 201, and the other side is pressed against the inner wall of the test hole 10 through at least two protrusions 102, which increases the support points and enables the contact part 201 to continuously fit tightly against the inner wall, thereby ensuring the accuracy of the test results.

[0079] In one possible design, the number of protrusions 102 is at least three, at least one protrusion 102 is located on the side opposite to the contact portion 201, and at least two protrusions 102 are located on both sides of the contact portion 201 respectively.

[0080] Specifically, such as Figure 3 As shown, when there are three protrusions 102, one protrusion 102 is located on the side opposite to the contact portion 201, forming an opposing structure with the contact portion 201, and the other two protrusions 102 are located on both sides of the contact portion 201 respectively.

[0081] In this way, with the three protrusions 102 pressing against the inner wall of the hole to be tested 10 on the arm bushing, the support assembly 100 is less prone to swaying and more stable. Of course, more protrusions 102 can be provided. The number of protrusions 102 and the pressing position can be determined according to the actual diameter of the hole to be tested 10. This embodiment does not impose too many restrictions.

[0082] Furthermore, in this embodiment, the protrusions 102 are arranged in a ring array. For the three protrusions 102, the angle between the line connecting two adjacent protrusions 102 and the center of the ring is 120°, making the distribution of the clamping force more balanced.

[0083] In some embodiments, each protrusion 102 is provided with at least one elastic component 103, and each elastic component 103 is used to abut against the inner wall of the hole to be tested 10. That is, each protrusion 102 is indirectly pressed against the inner wall of the hole to be tested 10 on the boom bushing through the elastic component 103.

[0084] This design makes it easier to insert or remove the support component 100 into the hole to be inspected 10 without getting stuck. On the other hand, it can adapt to the inspection of holes 10 with different size tolerances within a small range, making it more adaptable.

[0085] Furthermore, in this embodiment, the elastic component 103 includes a mounting base 1031, a second elastic element 1032, and a rolling element 1033. The mounting base 1031 has a first mounting hole, and the second elastic element 1032 and the rolling element 1033 are both disposed in the first mounting hole.

[0086] One end of the second elastic member 1032 abuts against the bottom surface of the first mounting hole, and the other end of the second elastic member 1032 abuts against the rolling member 1033, which is used to roll and contact the inner wall of the hole to be tested 10.

[0087] A second mounting hole 104 is provided on the protrusion 102, and the mounting base 1031 is inserted into the second mounting hole 104 accordingly.

[0088] Specifically, such as Figure 4 As shown, the mounting base 1031 can be a columnar structure with a first mounting hole, such as a countersunk hole. The second elastic element 1032 can be a compression spring, which is disposed in the countersunk hole, with one end of the second elastic element 1032 abutting against the bottom surface of the countersunk hole. The rolling element 1033 can be a ball bearing, which is placed at the opening of the countersunk hole and abuts against the other end of the second elastic element 1032. The rolling element 1033 can roll and cannot fall out of the opening of the countersunk hole, thus forming a ball screw structure.

[0089] Furthermore, a second mounting hole 104 is provided radially on the protrusion 102, and the mounting base 1031 is inserted into the second mounting hole 104. The position of the mounting base 1031 is adjusted radially so that the rolling element 1033 protrudes from the surface of the protrusion 102. In this way, each protrusion 102 can contact the inner wall of the hole to be tested 10 through the rolling element 1033, resulting in less resistance during rotation and avoiding scratching the inner wall.

[0090] The specific structure, type, elasticity, etc. of the elastic component 103 can be determined according to actual needs, and no further limitations are made in this embodiment.

[0091] Furthermore, in this embodiment, the support assembly 100 includes a support rod 110 and a bushing 120, and the mounting groove 101 is located on the support rod 110.

[0092] The bushing 120 is fitted onto the support rod 110, and each protrusion 102 is located around the bushing 120.

[0093] Specifically, such as Figure 6As shown, the support rod 110 is in a substantially round rod structure, the mounting groove 101 is located on the support rod 110, and a notch is formed on one side of the support rod 110 in the radial direction, so that the contact portion 201 on the detection assembly 200 can pass through.

[0094] The sleeve 120 is designed in multiple specifications according to different sizes of the to-be-detected hole 10, and is replaced according to the size of the to-be-detected hole 10 actually detected. The sleeve 120 is sleeved on the support rod 110, and the two can be fastened by screws. A notch also needs to be formed on one side of the sleeve 120 in the radial direction, so that the contact portion 201 on the detection assembly 200 can pass through. The protruding portion 102 and the second mounting hole 104 are both located on the sleeve 120.

[0095] In addition, through the detachable structure of the support rod 110 and the sleeve 120, the sleeve 120 can be easily replaced after being worn out. The specific specifications, shapes, etc. of the support rod 110 and the sleeve 120 can be determined according to actual needs, and are not limited in the embodiment.

[0096] In some embodiments, the detection assembly 200 includes a probe 210 and a wedge 220 connected to one side of the probe 210. The probe 210 and the wedge 220 are both located in the mounting groove 101.

[0097] The probe 210 is connected with the first elastic member 300, and the contact portion 201 is located on the side of the wedge 220 away from the probe 210.

[0098] Specifically, as shown in Figure 2 , Figure 6 The probe 210 is used to emit and receive ultrasonic waves, and the wedge 220 is used to provide a stable and controllable coupling medium to ensure that the ultrasonic waves can be effectively transmitted to the weld. The probe 210 and the wedge 220 can be connected by screws. The side of the probe 210 away from the wedge 220 is connected with the first elastic member 300, and the contact portion 201 is located on the side of the wedge 220 away from the probe 210.

[0099] The specific specifications, types, etc. of the probe 210 and the wedge 220 can be determined according to the to-be-detected hole 10 and the weld actually detected, and are not limited in the embodiment.

[0100] Further, the embodiment also includes at least one connecting member 400. The support rod 110 has at least one guide hole 111, which is in communication with the mounting groove 101 and extends in the moving direction of the detection assembly 200.

[0101] The connecting member 400 is slidingly arranged in the guide hole 111 and connected with the probe 210. The connecting member 400 is used to limit the moving distance of the probe 210 and the wedge 220.

[0102] Specifically, the connector 400 is used to guide the movement of the probe 210 and the wedge 220, and to limit the movement distance of the probe 210 and the wedge 220. The connector 400 can be a guide pin, which is slidably inserted into the guide hole 111. One end of the guide pin has a stop, and the other end of the guide pin is screwed onto the probe 210.

[0103] In this way, such as Figure 5 As shown, the first elastic element 300 drives the probe 210 and the wedge 220 along... Figure 5 When the Y-axis moves in the opposite direction, the connector 400 can guide the movement of the probe 210 and the wedge 220, and at the same time limit the movement distance of the probe 210 and the wedge 220 to prevent them from falling off.

[0104] in, Figure 6 The diagram shows that the support rod 110 and the probe 210 are connected by four connectors 400 to make the force more even. Of course, the connectors 400 may also be replaced by other types of components, as long as they can guide the movement of the probe 210 and the wedge 220 and limit their movement distance. This embodiment does not impose too many restrictions.

[0105] In some embodiments, a positioning component 500 is also included, which includes a positioning element 510 and a locking element 520.

[0106] The positioning element 510 is disposed on the support rod 110 and moves along the extension direction of the support rod 110. The positioning element 510 is used to limit the depth of the support assembly 100 inserted into the hole to be tested 10.

[0107] The locking element 520 is connected to one of the positioning element 510 and the support rod 110 and is used to restrict the movement of the positioning element 510.

[0108] Specifically, such as Figure 2 As shown, under the positioning action of the positioning component 510, it can be ensured that the support component 100 is inserted into the hole 10 to be inspected to the same depth each time, which facilitates quick positioning of the weld, saves debugging time, and improves inspection efficiency.

[0109] Moreover, the positioning element 510 moves along a third direction, such as along... Figure 2 The Z-axis movement facilitates adjustment of the insertion depth into the test hole 10. The locking member 520 is used to lock the positioning member 510 onto the support rod 110, thereby restricting the movement of the positioning member 510.

[0110] For example, such as Figure 1 , Figure 2As shown, the positioning member 510 is sleeved on the support rod 110, the locking member 520 is a locking bolt, the locking bolt is screwed on the positioning member 510, and the locking bolt can be tightened to abut against the support rod 110 to limit the position, or the locking bolt can be loosened to release the limitation.

[0111] Further, in the embodiment, the positioning member 510 comprises a positioning seat 511 and a plurality of positioning claws 512, the locking member 520 is connected to the positioning seat 511, and each positioning claw 512 is distributed at intervals on the circumferential side of the support rod 110 and connected to the positioning seat 511.

[0112] Each positioning claw 512 extends towards the side of the protruding part 102 and leaves a clearance space 501 between the support rod 110, and each positioning claw 512 is used to contact and position the outer periphery of the part of the arm support shaft sleeve at the end of the hole to be detected.

[0113] In this way, as shown, Figure 2 As shown, the positioning seat 511 is sleeved on the support rod 110 and can move on the support rod 110, and can be locked by the locking member 520. When the support rod 110 is inserted into the hole to be detected 10, the end of the hole to be detected 10 is inserted into the clearance space 501, and the outer periphery of the part of the arm support shaft sleeve at the end of the hole to be detected 10 is in contact with the positioning claw 512 for positioning, so that the support rod 110 can be prevented from swinging up and down during the rotation of the support rod 110, thereby ensuring the stability of the rotation.

[0114] Among them, the positioning claw 512 can be provided in three or more quantities, and the specific number and structure of the positioning claw 512 can be determined according to actual needs, which are not limited in the embodiment.

[0115] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0116] It should be understood that the application is not limited to the precise construction that has been described above and shown in the accompanying drawings, and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is indicated only by the appended claims.

Claims

1. A weld inspection tool for boom bushings, characterized in that, include: A support assembly (100) has a mounting groove (101) and at least two protrusions (102) are spaced apart on the periphery of the support assembly (100). Each of the protrusions (102) is used to press against the inner wall of the hole to be tested (10). A detection component (200) is disposed in the mounting groove (101), and the detection component (200) has a contact portion (201). At least one first elastic element (300), the detection component (200) is connected to the support component (100) through the first elastic element (300); The first elastic element (300) is configured to drive the detection component (200) to move radially along the detection hole (10) when the support component (100) is inserted into the detection hole (10) with a weld on the boom bushing, so that the contact portion (201) abuts against the inner wall of the detection hole (10).

2. The weld inspection tool for boom bushings according to claim 1, characterized in that, The number of protrusions (102) is at least three, at least one of the protrusions (102) is located on the side opposite to the contact portion (201), and at least two of the protrusions (102) are located on both sides of the contact portion (201).

3. The weld inspection tool for boom bushings according to claim 2, characterized in that, Each of the protrusions (102) is arranged in a ring array.

4. The weld inspection tool for boom bushings according to any one of claims 1 to 3, characterized in that, Each of the protrusions (102) is provided with at least one elastic component (103), and each elastic component (103) is used to abut against the inner wall of the hole to be tested (10).

5. The weld inspection tool for boom bushings according to claim 4, characterized in that, The elastic component (103) includes a mounting base (1031), a second elastic element (1032), and a rolling element (1033). The mounting base (1031) has a first mounting hole, and the second elastic element (1032) and the rolling element (1033) are both disposed in the first mounting hole. One end of the second elastic member (1032) abuts against the bottom surface of the first mounting hole, and the other end of the second elastic member (1032) abuts against the rolling member (1033), which is used to roll and contact the inner wall of the hole to be tested (10). The protrusion (102) has a second mounting hole (104), and the mounting base (1031) is inserted into the second mounting hole (104).

6. The weld inspection tool for boom bushings according to claim 5, characterized in that, The support assembly (100) includes a support rod (110) and a bushing (120), and the mounting groove (101) is located on the support rod (110); The bushing (120) is sleeved on the support rod (110), and each of the protrusions (102) is located on the periphery of the bushing (120).

7. The weld inspection tool for boom bushings according to claim 6, characterized in that, The detection assembly (200) includes a probe (210) and a wedge (220) connected to one side of the probe (210), both the probe (210) and the wedge (220) being located in the mounting groove (101); The probe (210) is connected to the first elastic element (300), and the contact portion (201) is located on the side of the wedge block (220) away from the probe (210).

8. The weld inspection tool for boom bushings according to claim 7, characterized in that, It also includes at least one connector (400), the support rod (110) having at least one guide hole (111) communicating with the mounting groove (101) and extending along the moving direction of the detection assembly (200); The connector (400) is slidably disposed in the guide hole (111) and connected to the probe (210). The connector (400) is used to limit the movement distance of the probe (210) and the wedge (220).

9. The weld inspection tool for boom bushings according to claim 6, characterized in that, It also includes a positioning component (500), which includes a positioning element (510) and a locking element (520); The positioning element (510) is disposed on the support rod (110) and moves along the extension direction of the support rod (110). The positioning element (510) is used to limit the depth of the support assembly (100) inserted into the hole to be tested (10). The locking member (520) is connected to one of the positioning member (510) and the support rod (110) and is used to restrict the movement of the positioning member (510).

10. The weld inspection tool for boom bushings according to claim 9, characterized in that, The positioning member (510) includes a positioning seat (511) and a plurality of positioning claws (512). The locking member (520) is connected to the positioning seat (511). Each of the positioning claws (512) is spaced apart on the periphery of the support rod (110) and connected to the positioning seat (511). Each of the positioning claws (512) extends toward the protrusion (102) and leaves a clearance space (501) between it and the support rod (110). Each of the positioning claws (512) is used to contact and position itself with part of the outer periphery of the boom bushing at the end of the hole to be tested (10).

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