Ultrasonic detection device for main shaft of mine hoist

Abstract

The utility model relates to the technical field of elevator main shaft detection, in particular to a mine elevator main shaft ultrasonic detection device which comprises a lifting assembly, a telescopic assembly and two toothed arms. The lifting assembly comprises a two-way threaded rod and sliding seats in threaded connection with the two ends of the two-way threaded rod, and mounting cavities are formed in the outer walls of the sliding seats; the toothed arm penetrates through the mounting cavity and is in sliding connection with the mounting cavity; the telescopic assembly comprises two shaft sleeves and a cross shaft connected to the inner walls of the shaft sleeves in a sliding mode, the end of the cross shaft is rotationally connected with a mounting frame, the mounting frame is fixedly mounted in the sliding base, the end of the mounting frame extends into the mounting cavity, the end of the cross shaft is fixedly connected with a fourth gear, the inner wall of the mounting frame is rotationally connected with a rotating shaft, and the rotating shaft is fixedly connected with a second gear. And the outer wall of the rotating shaft is fixedly connected with a third gear. The device can adapt to the size of the main shaft of the mine hoist for adjustment, and a certain safe distance is kept between the device and the main shaft of the mine hoist for detection.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoist main shaft detection technical field more specifically, relate to a mine hoist main shaft ultrasonic detection device. BACKGROUND

[0002] Mine hoist main shaft is one of important parts of main shaft device, it bears the entire main shaft device dead weight, external load and transfers all torque, mine hoist main shaft is in high load, long -term in the severe operating environment of high strength, is easy to be affected by the action of torsion, bending, extrusion, contact and other multiple compound stress, and is easy to produce main shaft crack, even fracture, thereby influence safe operation, therefore, it is important to carry out regular detection and flaw detection to main shaft.

[0003] However, the existing mine hoist main shaft size is large, and the existing ultrasonic detection device is difficult to adapt to the size of the mine hoist main shaft for adjustment and use, therefore, we propose a mine hoist main shaft ultrasonic detection device. UTILITY MODEL CONTENTS

[0004] The utility model proposes a kind of mine hoist main shaft ultrasonic detection device, can be adjusted to the size of mine hoist main shaft, and keep a certain safety distance with mine hoist main shaft and detect.

[0005] The utility model proposes a kind of mine hoist main shaft ultrasonic detection device, including lifting assembly, telescopic component and two tooth arms;

[0006] The lifting assembly includes two-way threaded rod and the sliding seat of screw connection at its both ends, the installation cavity is formed in the outer wall of sliding seat;

[0007] The tooth arm passes through installation cavity and is slidably connected with it;

[0008] The telescopic component includes two shaft sleeves and the cross shaft of sliding connection in its inner wall, the mounting bracket is rotatably connected to the end of cross shaft, the mounting bracket is fixedly installed in sliding seat, the end of mounting bracket extends into installation cavity, the fourth gear is fixedly connected to the end of cross shaft, the rotating shaft is rotatably connected to the inner wall of mounting bracket, the third gear is fixedly connected to the outer wall of rotating shaft, the fourth gear is engaged with third gear, the conveying gear is fixedly connected to the outer wall of rotating shaft, the conveying gear is located in mounting bracket, and the conveying gear is used to drive tooth arm to slide along the inner wall of installation cavity.

[0009] Preferably, the side of tooth arm and conveying gear contact is equipped with tooth slot, the outer wall of conveying gear is equipped with a plurality of gear teeth, conveying gear is engaged with tooth slot by gear teeth and pushes tooth arm to move.

[0010] Preferably, the cross shaft end is rotationally connected with an axle seat, and the axle seat end is fixedly connected with the sliding seat.

[0011] Preferably, the tooth arm end is fixedly connected with a clamping seat, and the clamping seat inner wall is fixedly connected with an ultrasonic detection probe, which is used for detecting the mine hoist main shaft.

[0012] Preferably, the lifting assembly comprises a mounting seat, mounting holes are formed at the four corners of the top of the mounting seat, a support is fixedly connected to the top of the mounting seat, and the two ends of the bidirectional threaded rod are rotationally connected to the inner wall of the support.

[0013] Preferably, the end of the bidirectional threaded rod is fixedly connected with a first gear, the outer wall of the support is fixedly connected with a stepping motor output end, and the stepping motor output end is fixedly connected with a second gear, and the second gear is engaged with the first gear.

[0014] Preferably, the stepping motor output end is rotationally connected with a support plate, and the support plate end is fixedly connected with the support.

[0015] Preferably, the telescopic assembly comprises a fixed seat, the fixed seat is fixedly installed on the support, the outer wall of the fixed seat is fixedly connected with a double-shaft motor, and the two output ends of the double-shaft motor are fixedly connected with the shaft sleeve.

[0016] By the above technical scheme, the device has the following advantages:

[0017] 1. In the device, when the bidirectional threaded rod rotates, the two sliding seats slide along the inner wall of the support in opposite directions, the sliding seat moves to drive the cross shaft to move, the cross shaft slides along the inner wall of the shaft sleeve, and the sliding seat slides to drive the tooth arm to move, so that the distance between the two tooth arms can be adjusted. The fourth gear is driven to rotate by the cross shaft, the third gear is driven to rotate by the fourth gear, the conveying gear is driven to rotate by the third gear through the rotating shaft, and the tooth arm is moved by the conveying gear, so that the tooth arm can extend above and below the main shaft. This design enables the device to adapt to the size of the mine hoist main shaft for adjustment, and to maintain a certain safety distance from the mine hoist main shaft for detection.

[0018] 2. In the device, when the bidirectional threaded rod rotates, the two sliding seats slide along the inner wall of the support in opposite directions, the sliding seat moves to drive the cross shaft to move, the cross shaft slides along the inner wall of the shaft sleeve, and at the same time the double-shaft motor drives the cross shaft to rotate through the shaft sleeve, and the tooth arm is moved by the conveying gear. This design can adjust the distance between the two tooth arms, move the tooth arm by the conveying gear, realize synchronous adjustment of the tooth arm, and achieve the purpose of rapid adjustment. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the installation structure of the stepper motor of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the slide block of this utility model;

[0022] Figure 4 This is a schematic diagram of the installation structure of the conveying gear of this utility model.

[0023] In the diagram: 1. Mounting base; 2. Mounting hole; 3. Bracket; 4. Bidirectional threaded rod; 5. First gear; 6. Stepper motor; 7. Second gear; 8. Support plate; 9. Slide; 901. Mounting cavity; 10. Gear arm; 11. Clamp; 12. Ultrasonic detection probe; 13. Fixed base; 14. Dual-axis motor; 15. Bushing; 16. Cross shaft; 17. Mounting bracket; 18. Rotating shaft; 19. Conveyor gear; 20. Third gear; 21. Shaft seat; 22. Fourth gear. Detailed Implementation

[0024] Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this utility model. In this utility model, unless otherwise expressly specified and limited, the term "fixed connection" should be interpreted broadly. For example, "fixed connection" can mean fixed installation, detachable connection, or integral; it can mean mechanical connection or electrical connection; it can mean direct connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0025] The phrase "in some embodiments" as described in this specification means that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrase "in some embodiments" appearing in different parts of this specification does not necessarily refer to the same embodiment unless otherwise specifically emphasized, and the term "including" means "including, but not limited to," unless otherwise specifically emphasized.

[0026] like Figures 1-4 As shown, an ultrasonic testing device for the main shaft of a mine hoist includes a lifting assembly, a telescopic assembly, and two toothed arms 10.

[0027] The lifting assembly includes a bidirectional threaded rod 4 and slides 9 threaded to its two ends. The outer wall of the slides 9 has an installation cavity 901. When the bidirectional threaded rod 4 rotates, the two slides 9 can move synchronously in opposite directions.

[0028] The toothed arm 10 passes through the mounting cavity 901 and is slidably connected to it; the toothed arm 10 can slide along the inner wall of the mounting cavity 901.

[0029] In some embodiments, the surface in contact with the mounting cavity 901 can be fitted with balls or rollers to reduce the friction between the toothed arm 10 and the mounting cavity 901, reduce the resistance during sliding, and extend the service life of the structure.

[0030] The telescopic assembly includes two bushings 15 and a cross shaft 16 slidably connected to its inner wall. A mounting bracket 17 is rotatably connected to the end of the cross shaft 16. The mounting bracket 17 is fixedly installed in the slide block 9 and extends into the mounting cavity 901. A fourth gear 22 is fixedly connected to the end of the cross shaft 16. A rotating shaft 18 is rotatably connected to the inner wall of the mounting bracket 17. A third gear 20 is fixedly connected to the outer wall of the rotating shaft 18. The fourth gear 22 meshes with the third gear 20. A conveying gear 19 is fixedly connected to the outer wall of the rotating shaft 18. The conveying gear 19 is located in the mounting bracket 17 and is used to drive the gear arm 10 to slide along the inner wall of the mounting cavity 901. The device can be adjusted to adapt to the size of the mine hoist main shaft and maintain a certain safe distance from the mine hoist main shaft for detection.

[0031] The toothed arm 10 has a toothed groove on the side that contacts the conveying gear 19, and the outer wall of the conveying gear 19 has multiple teeth. The conveying gear 19 pushes the toothed arm 10 to move by meshing the teeth with the toothed groove. The design of the toothed groove and the teeth enables the conveying gear 19 to stably push the toothed arm 10 to move.

[0032] A bearing seat 21 is rotatably connected to the end of the cross shaft 16, and the end of the bearing seat 21 is fixedly connected to the slide 9; the bearing seat 21 can stably support the cross shaft 16 and improve the stability of the cross shaft 16 when rotating.

[0033] A clamp 11 is fixedly connected to the end of the toothed arm 10, and an ultrasonic testing probe 12 is fixedly connected to the inner wall of the clamp 11. The ultrasonic testing probe 12 is used to test the main shaft of the mine hoist. The ultrasonic testing probe 12 can be a straight probe or an angle probe.

[0034] The lifting assembly includes a mounting base 1, with mounting holes 2 at the four corners of the top of the mounting base 1. A bracket 3 is fixedly connected to the top of the mounting base 1, and the two ends of the bidirectional threaded rod 4 are rotatably connected to the inner wall of the bracket 3. The slide block 9 is slidably connected to the inner wall of the bracket 3.

[0035] In some embodiments, the surfaces of the slide 9 and the bracket 3 that contact each other can also be fitted with balls or rollers to reduce the friction between the slide 9 and the bracket 3, reduce the resistance during sliding, and extend the service life of the structure.

[0036] A first gear 5 is fixedly connected to the end of the bidirectional threaded rod 4. A second gear 7 is fixedly connected to the output end of the stepper motor 6, which meshes with the first gear 5. A support plate 8 is rotatably connected to the output end of the stepper motor 6. The end of the support plate 8 is fixedly connected to the support 3. The telescopic component includes a fixed seat 13, which is fixedly installed on the support 3. A dual-axis motor 14 is fixedly connected to the outer wall of the fixed seat 13. The two output ends of the dual-axis motor 14 are respectively fixedly connected to the bushing 15.

[0037] Working principle: Stepper motor 6 drives second gear 7 to rotate, and second gear 7 drives double threaded rod 4 to rotate through first gear 5. When double threaded rod 4 rotates, two slide blocks 9 slide along the inner wall of bracket 3 in opposite directions. When slide blocks 9 move, they drive cross shaft 16 to move, and cross shaft 16 slides along the inner wall of bushing 15. When slide blocks 9 slide, they drive toothed arm 10 to move, thereby adjusting the distance between the two toothed arms 10 to adapt to the size of the mine hoist main shaft.

[0038] When the dual-shaft motor 14 rotates, it drives the bushing 15 to rotate, which in turn drives the cross shaft 16 to rotate. The cross shaft 16 then drives the fourth gear 22 to rotate, which in turn drives the third gear 20 to rotate. The third gear 20 drives the conveying gear 19 to rotate via the rotating shaft 18, which in turn drives the toothed arm 10 to move. This allows the toothed arm 10 to extend above and below the main shaft, enabling the device to maintain a safe distance from the mine hoist main shaft for detection.

[0039] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. An ultrasonic testing device for the main shaft of a mine hoist, characterized in that, include: The lifting assembly includes a bidirectional threaded rod (4) and a slide (9) threaded to both ends thereon, wherein the outer wall of the slide (9) is provided with an installation cavity (901); Two toothed arms (10) pass through the mounting cavity (901) and are slidably connected thereto; The telescopic assembly includes two bushings (15) and a cross shaft (16) slidably connected to its inner wall. A mounting bracket (17) is rotatably connected to the end of the cross shaft (16). The mounting bracket (17) is fixedly installed in the slide (9). The end of the mounting bracket (17) extends into the mounting cavity (901). A fourth gear (22) is fixedly connected to the end of the cross shaft (16). A rotating shaft (18) is rotatably connected to the inner wall of the mounting bracket (17). A third gear (20) is fixedly connected to the outer wall of the rotating shaft (18). The fourth gear (22) meshes with the third gear (20). A conveying gear (19) is fixedly connected to the outer wall of the rotating shaft (18). The conveying gear (19) is located in the mounting bracket (17). The conveying gear (19) is used to drive the gear arm (10) to slide along the inner wall of the mounting cavity (901).

2. The ultrasonic testing device for the main shaft of a mine hoist according to claim 1, characterized in that: The toothed arm (10) has a toothed groove on the side that contacts the conveying gear (19). The outer wall of the conveying gear (19) has multiple teeth. The conveying gear (19) pushes the toothed arm (10) to move by meshing the teeth with the toothed groove.

3. The ultrasonic testing device for the main shaft of a mine hoist according to claim 2, characterized in that: The end of the cross shaft (16) is rotatably connected to a bearing seat (21), and the end of the bearing seat (21) is fixedly connected to the slide (9).

4. The ultrasonic testing device for the main shaft of a mine hoist according to claim 3, characterized in that: The toothed arm (10) is fixedly connected to a clamp (11) at its end, and an ultrasonic testing probe (12) is fixedly connected to the inner wall of the clamp (11). The ultrasonic testing probe (12) is used to test the main shaft of the mine hoist.

5. The ultrasonic testing device for the main shaft of a mine hoist according to claim 4, characterized in that: The lifting assembly includes a mounting base (1), with mounting holes (2) at the four corners of the top of the mounting base (1). A bracket (3) is fixedly connected to the top of the mounting base (1), and the two ends of the bidirectional threaded rod (4) are rotatably connected to the inner wall of the bracket (3).

6. The ultrasonic testing device for the main shaft of a mine hoist according to claim 5, characterized in that: The end of the bidirectional threaded rod (4) is fixedly connected to a first gear (5), and the outer wall of the bracket (3) is fixedly connected to a stepper motor (6). The output end of the stepper motor (6) is fixedly connected to a second gear (7), and the second gear (7) meshes with the first gear (5).

7. The ultrasonic testing device for the main shaft of a mine hoist according to claim 6, characterized in that: The output end of the stepper motor (6) is rotatably connected to a support plate (8), and the end of the support plate (8) is fixedly connected to the bracket (3).

8. The ultrasonic testing device for the main shaft of a mine hoist according to claim 7, characterized in that: The telescopic assembly includes a fixed base (13), which is fixedly mounted on the bracket (3). A dual-axis motor (14) is fixedly connected to the outer wall of the fixed base (13), and the two output ends of the dual-axis motor (14) are respectively fixedly connected to the bushing (15).

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