CN218064265U

CN218064265U - Lifting cantilever device for ultrasonic detection of high-speed rail hollow shaft

Info

Publication number: CN218064265U
Application number: CN202221485109.5U
Authority: CN
Inventors: 顾峰; 张旭文; 何小宝
Original assignee: Jiangsu Ningtie Technology Co ltd
Current assignee: Jiangsu Ningtie Technology Co ltd
Priority date: 2022-06-15
Filing date: 2022-06-15
Publication date: 2022-12-16
Anticipated expiration: 2032-06-15

Abstract

The utility model relates to the technical field related to ultrasonic testing, in particular to a lifting cantilever device for ultrasonic testing of a high-speed rail hollow shaft, which comprises a lifting mechanism, a rotating mechanism, a cantilever mechanism and an adjusting mechanism which are connected with each other; the lifting mechanism is used for providing lifting power for the whole device and comprises a control base, a fixed column, a lifting column, a ball screw, a servo motor, a synchronous wheel and a synchronous belt; the lifting cantilever device solves the detection requirements of different heights of the detection unit, can detect at the highest and lowest positions, can detect the lifting drive of the device at any position between the high position and the low position and adopts an electric lifting mode for control, and has the advantages of stable operation, no noise, accurate positioning, long service life and low maintenance rate; this scheme has still installed rotary mechanism additional at the front end of device, makes it can be according to detecting its rotation angle of required adjustment, satisfies multiple detection demand, and factor of safety is higher.

Description

Lifting cantilever device for ultrasonic detection of high-speed rail hollow shaft

Technical Field

The utility model relates to an ultrasonic detection is related technical field, specifically is a high-speed railway hollow shaft lifting cantilever device for ultrasonic detection.

Background

The existing lifting device for the ultrasonic detection of the hollow shaft of the high-speed rail is mostly controlled in a steel wire rope transmission mode, and although the lifting driving mechanism can also achieve the purpose of lifting the detection device, the device has the advantages of lower safety factor, high maintenance rate, capability of only transmitting smaller force and torque, and easy potential safety hazard and accident caused by long-time maintenance-free treatment; in the process of actual use, it is difficult to realize the functions of adjusting the rotation angle of the detection unit, controlling the distance and size of the detection device, and the like, and the practicability and flexibility are weak.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high-speed railway hollow shaft lifting cantilever device for ultrasonic testing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above purpose, the utility model provides a following technical scheme: a lifting cantilever device for ultrasonic detection of a high-speed rail hollow shaft comprises a lifting mechanism, a rotating mechanism, a cantilever mechanism and an adjusting mechanism which are connected with each other;

the lifting mechanism is used for providing lifting power for the whole device and comprises a control base, a fixed column, a lifting column, a ball screw, a servo motor, a synchronous wheel and a synchronous belt, wherein the fixed column and the servo motor are fixed on the control base;

the rotating mechanism is used for controlling the rotating operation of the device and comprises a rotating cantilever, a bearing seat, a ball bearing and a rotating shaft, the bearing seat is installed at the top end of the lifting column, the rotating shaft is installed on the bearing seat, the rotating shaft is connected with a cantilever seat through the ball bearing, the rotating cantilever is fixed on one side of the cantilever seat and connected with a cantilever mechanism;

the cantilever mechanism is used for expanding the length of the device and providing the whole load of the device; the cantilever mechanism comprises an extension rotating shaft and an extension cantilever, the extension cantilever is movably arranged at one end of the rotating cantilever far away from the lifting column through the extension rotating shaft, and the other end of the extension cantilever is connected with the adjusting mechanism;

the adjusting mechanism is used for realizing the connection between the detection unit and the cantilever mechanism and has the functions of height fine adjustment and buffering; the adjusting mechanism comprises a spring sleeve, a pull rod, a hanging block and a spring, wherein the hanging block is arranged at the bottom end of the pull rod, the spring is arranged in the spring sleeve, the upper part of the pull rod is connected with the spring, and the pull rod is arranged in an inner cavity of the spring sleeve in a vertically sliding mode.

Preferably, the bottom of the ball screw is installed in the cavity of the fixed column through a connecting bearing, the output end of the servo motor is connected with a driving rotating shaft, and synchronizing wheels are installed at the bottom end of the driving rotating shaft and the bottom end of the ball screw.

Preferably, two sets of synchronizing wheel all installs in the control base, and connects through the hold-in range between two sets of synchronizing wheel.

Preferably, the middle part of the bearing seat is provided with a limiting blocking sleeve, and the top end of the bearing seat is provided with a bearing retainer ring through a bolt.

Preferably, the end part of the extension cantilever is movably arranged on the extension cantilever through an extension rotating shaft, an extension handle is arranged at the bottom end of the extension rotating shaft, and a nut is arranged at the top end of the extension rotating shaft in a threaded manner.

Preferably, the upper end and the lower end of the extension rotating shaft are both sleeved with rotary copper sleeves, and rotary gaskets are installed at the joints of the extension rotating shaft, the screw cap and the extension handle.

Preferably, the friction disc and the hanging block are respectively arranged at the upper end and the lower end of the pull rod, and the pull rod is arranged in the inner cavity of the spring sleeve in a vertically sliding mode through the friction disc.

Preferably, a friction sliding ring is arranged on the circumferential outer side wall of the friction disc and connected with the inner cavity of the spring sleeve.

Preferably, the top end of the spring sleeve is provided with a sleeve cover through a bolt, the top end of the sleeve cover is provided with a suspension hanging lug, and the suspension hanging lug is arranged on the extension cantilever through a connecting shaft.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model provides a pair of high-speed railway hollow shaft is lift cantilever device for ultrasonic detection, this lift cantilever device have solved the not co-altitude detection demand of detecting element, not only can detect at the highest and the extreme low position that sets up, can detect in high-order and low level district optional position simultaneously moreover.

2. The utility model provides a pair of high-speed railway hollow shaft is lift cantilever device for ultrasonic detection, the device's lift drive adopts electric lift's mode to control, and this structure operates steadily noiselessness, and the location is accurate, and is longe-lived and maintenance rate is low.

3. The utility model provides a pair of high-speed railway hollow shaft lifting cantilever device for ultrasonic detection, this scheme has still installed rotary mechanism additional at the front end of device, makes it can be according to detecting its rotation angle of required adjustment, satisfies multiple detection demand, and factor of safety is higher.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a front view of the present invention;

fig. 3 is a schematic view of the overall structure of the rotating mechanism of the present invention;

fig. 4 is a cross-sectional view of the rotating mechanism of the present invention;

fig. 5 is a schematic view of the overall structure of the cantilever mechanism of the present invention;

fig. 6 is a cross-sectional view of the cantilever mechanism of the present invention;

fig. 7 is a schematic view of the overall structure of the adjusting mechanism of the present invention;

fig. 8 is a sectional view of the adjusting mechanism of the present invention.

In the figure: 1. a lifting mechanism; 11. a control base; 12. fixing a column; 13. a lifting column; 14. a ball screw; 15. a servo motor; 16. a synchronizing wheel; 17. a synchronous belt; 2. a rotation mechanism; 21. rotating the cantilever; 22. a bearing seat; 23. a ball bearing; 24. a rotating shaft; 25. a cantilever mount; 26. a limiting stop sleeve; 27. a bearing retainer ring; 3. a cantilever mechanism; 31. an extension cantilever; 32. an extension shaft; 33. an extension handle; 34. a nut; 35. rotating the copper sleeve; 36. rotating the spacer; 4. an adjustment mechanism; 41. a spring sleeve; 42. a pull rod; 43. a hanging block; 44. a spring; 45. a friction disk; 46. a friction slip ring; 47. a sleeve cover; 48. hanging a suspension loop; 49. and (7) connecting the shafts.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.

Any one of the embodiments of the present invention will be described below with reference to the accompanying drawings 1 to 8 for further explanation:

example 1: the utility model provides a high-speed railway hollow shaft lifting cantilever device for ultrasonic testing, including elevating system 1, elevating system 1 is used for providing lift power for the device is whole, elevating system 1 includes control base 11, fixed column 12, lift post 13, ball screw 14, servo motor 15, synchronizing wheel 16 and hold-in range 17, wherein, fixed column 12 and servo motor 15 are all fixed on control base 11, lift post 13 slides from top to bottom and sets up in the cavity of fixed column 12, the inside at lift post 13 is installed to ball screw 14 screw thread, ball screw 14's bottom is passed through synchronizing wheel 16 and hold-in range 17 and is connected with servo motor 15.

As a preferred embodiment, the bottom of the ball screw 14 is installed in the cavity of the fixed column 12 through a connecting bearing, the output end of the servo motor 15 is connected with a driving rotating shaft, and the bottom end of the driving rotating shaft and the bottom end of the ball screw 14 are both provided with a synchronizing wheel 16.

As a preferred embodiment, two groups of synchronous wheels 16 are installed in the control base 11, and the two groups of synchronous wheels 16 are connected through a synchronous belt 17.

In this embodiment: when the height of the detection station needs to be adjusted, a power supply of a servo motor 15 is switched on, so that the servo motor 15 drives a synchronizing wheel 16 at the bottom of the servo motor to rotate, the synchronizing wheel 16 drives another group of synchronizing wheels 16 connected with the synchronizing wheel to rotate through a synchronous belt 17, the synchronizing wheel 16 is connected with a ball screw 14 to further drive the ball screw 14 to synchronously rotate, and the ball screw 14 is connected with a lifting column 13 through a thread, so that the lifting column 13 is lifted or lowered to a proper height in a fixed column 12 (realized by controlling the forward and reverse rotation of the servo motor 15); the height of the lifting column 13 is adjusted to drive the lifting block 43 to synchronously change the height, so that the purpose of adjusting the height of the detection station is achieved.

Example 2: the rotating mechanism 2 is used for rotating the control device, the rotating mechanism 2 comprises a rotating cantilever 21, a bearing seat 22, a ball bearing 23 and a rotating shaft 24, the bearing seat 22 is installed at the top end of the lifting column 13, the rotating shaft 24 is installed on the bearing seat 22, the rotating shaft 24 is connected with a cantilever seat 25 through the ball bearing 23, the rotating cantilever 21 is fixed on one side of the cantilever seat 25, and the rotating cantilever 21 is connected with the cantilever mechanism 3.

In a preferred embodiment, a retainer sleeve 26 is mounted at the middle of the bearing seat 22, and a retainer ring 27 is mounted at the top end of the bearing seat 22 through bolts.

In this embodiment: the cantilever device can be designed into an angle adjusting structure capable of realizing 270-degree rotation.

When the rotation angle of the detection unit needs to be adjusted, an operator can manually rotate the rotating cantilever 21, so that the rotating cantilever 21 drives the cantilever seat 25 to rotate, the cantilever seat 25 is matched with the ball bearing 23 to use, and the rotating cantilever seat is rotated to a proper height on the rotating shaft 24, so that the purpose of adjusting the rotation angle of the detection unit is achieved.

Example 3: the device also comprises a cantilever mechanism 3, wherein the cantilever mechanism 3 is used for expanding the length of the device and providing the whole load of the device; the cantilever mechanism 3 comprises an extension rotating shaft 32 and an extension cantilever 31, the extension cantilever 31 is movably arranged at one end of the rotating cantilever 21 far away from the lifting column 13 through the extension rotating shaft 32, and the other end of the extension cantilever 31 is connected with the adjusting mechanism 4.

As a preferred embodiment, the end of the extension cantilever 31 is movably mounted on the extension cantilever 31 through an extension rotating shaft 32, the bottom end of the extension rotating shaft 32 is provided with an extension handle 33, and the top end of the extension rotating shaft 32 is threadedly mounted with a nut 34.

As a preferred embodiment, the upper end and the lower end of the expanding rotating shaft 32 are sleeved with rotary copper sleeves 35, and rotary gaskets 36 are arranged at the joints of the expanding rotating shaft 32, the screw cap 34 and the expanding handle 33.

In this embodiment: when the length of the device needs to be expanded, an operator firstly rotates the nut 34 to release the nut 34 from fixing the expansion rotating shaft 32, then manually rotates the expansion handle 33, so that the expansion handle 33 drives the expansion cantilever 31 to a proper position through the expansion rotating shaft 32, then fastens the nut 34 at the top end of the expansion rotating shaft 32, and realizes the adjustment of the length of the device by changing the folding and unfolding states of the expansion cantilever 31.

Example 4: the device further comprises an adjusting mechanism 4, wherein the adjusting mechanism 4 comprises a spring sleeve 41, a pull rod 42, a hanging block 43 and a spring 44, the hanging block 43 is arranged at the bottom end of the pull rod 42, the spring 44 is arranged inside the spring sleeve 41, and the upper portion of the pull rod 42 is connected with the spring 44 and is arranged in an inner cavity of the spring sleeve 41 in a vertically sliding mode.

In a preferred embodiment, the friction disc 45 and the hanging block 43 are respectively disposed at the upper and lower ends of the pull rod 42, and the pull rod 42 is slidably disposed in the inner cavity of the spring sleeve 41 up and down through the friction disc 45.

As a preferred embodiment, a friction slip ring 46 is mounted on the circumferential outer side wall of the friction disc 45, the friction slip ring 46 being connected to the inner cavity of the spring sleeve 41.

As a preferred embodiment, the top end of the spring sleeve 41 is mounted with a sleeve cover 47 by bolts, the top end of the sleeve cover 47 is provided with a suspension lug 48, and the suspension lug 48 is mounted on the extension cantilever 31 by a connecting shaft 49.

In this embodiment: the adjusting mechanism 4 is used for realizing the connection between the detecting unit and the cantilever mechanism 3, and when in practical application, the stroke of the spring 44 can be manually adjusted according to the height of the detected product, and the spring 44 has the functions of height fine adjustment and buffering in the using process.

In actual use, the hanging block 43 is connected with the detection hanger through a bolt, and the detection hanger is connected with the detection unit through a bolt.

It is worth noting that: the whole device realizes control to the device through the controller, and the controller is common equipment and belongs to the existing mature technology, and the electrical connection relation and the specific circuit structure of the controller are not repeated herein.

The device can only withstand weight loading requirements within a radial design, depending on design requirements.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a high-speed railway hollow shaft lifting cantilever device for ultrasonic detection which characterized in that: comprises a lifting mechanism (1), a rotating mechanism (2), a cantilever mechanism (3) and an adjusting mechanism (4) which are connected with each other;

the lifting mechanism (1) comprises a control base (11), a fixing column (12), a lifting column (13), a ball screw (14), a servo motor (15), a synchronizing wheel (16) and a synchronous belt (17), wherein the fixing column (12) and the servo motor (15) are fixed on the control base (11), the lifting column (13) is arranged in a cavity of the fixing column (12) in a vertically sliding mode, the ball screw (14) is installed in the lifting column (13) in a threaded mode, and the bottom end of the ball screw (14) is connected with the servo motor (15) through the synchronizing wheel (16) and the synchronous belt (17);

the rotating mechanism (2) comprises a rotating cantilever (21), a bearing seat (22), a ball bearing (23) and a rotating shaft (24), the bearing seat (22) is installed at the top end of the lifting column (13), the rotating shaft (24) is installed on the bearing seat (22), the rotating shaft (24) is connected with a cantilever seat (25) through the ball bearing (23), the rotating cantilever (21) is fixed on one side of the cantilever seat (25), and the rotating cantilever (21) is connected with the cantilever mechanism (3);

the cantilever mechanism (3) comprises an extension rotating shaft (32) and an extension cantilever (31), the extension cantilever (31) is movably arranged at one end, far away from the lifting column (13), of the rotating cantilever (21) through the extension rotating shaft (32), and the other end of the extension cantilever (31) is connected with the adjusting mechanism (4);

the adjusting mechanism (4) comprises a spring sleeve (41), a pull rod (42), a hanging block (43) and a spring (44), the hanging block (43) is arranged at the bottom end of the pull rod (42), the spring (44) is arranged inside the spring sleeve (41), the upper portion of the pull rod (42) is connected with the spring (44), and the pull rod is arranged in an inner cavity of the spring sleeve (41) in a vertically sliding mode.

2. The lifting cantilever device for the ultrasonic testing of the hollow shaft of the high-speed rail according to claim 1, wherein: the bottom of the ball screw (14) is installed in a cavity of the fixed column (12) through a connecting bearing, the output end of the servo motor (15) is connected with a driving rotating shaft, and synchronizing wheels (16) are installed at the bottom end of the driving rotating shaft and the bottom end of the ball screw (14).

3. The lifting cantilever device for the ultrasonic testing of the hollow shaft of the high-speed rail according to claim 1, wherein: two sets of synchronizing wheel (16) are all installed in control base (11), and connect through hold-in range (17) between two sets of synchronizing wheel (16).

4. The lifting cantilever device for the ultrasonic detection of the hollow shaft of the high-speed rail according to claim 1, wherein: and the middle part of the bearing seat (22) is provided with a limiting blocking sleeve (26), and the top end of the bearing seat (22) is provided with a bearing retainer ring (27) through a bolt.

5. The lifting cantilever device for the ultrasonic testing of the hollow shaft of the high-speed rail according to claim 1, wherein: the end part of the extension cantilever (31) is movably arranged on the extension cantilever (31) through an extension rotating shaft (32), an extension handle (33) is arranged at the bottom end of the extension rotating shaft (32), and a nut (34) is installed at the top end of the extension rotating shaft (32) in a threaded mode.

6. The lifting cantilever device for the ultrasonic testing of the hollow shaft of the high-speed rail according to claim 1, wherein: the upper end and the lower end of the extension rotating shaft (32) are both sleeved with rotary copper sleeves (35), and rotary gaskets (36) are installed at the connecting parts of the extension rotating shaft (32), the screw cap (34) and the extension handle (33).

7. The lifting cantilever device for the ultrasonic detection of the hollow shaft of the high-speed rail according to claim 1, wherein: the upper end and the lower end of the pull rod (42) are respectively provided with a friction disc (45) and a hanging block (43), and the pull rod (42) is arranged in the inner cavity of the spring sleeve (41) in a vertically sliding mode through the friction disc (45).

8. The lifting cantilever device for the ultrasonic testing of the hollow shaft of the high-speed rail according to claim 7, wherein: and a friction sliding ring (46) is arranged on the circumferential outer side wall of the friction disc (45), and the friction sliding ring (46) is connected with the inner cavity of the spring sleeve (41).

9. The lifting cantilever device for the ultrasonic detection of the hollow shaft of the high-speed rail according to claim 1, wherein: the top end of the spring sleeve (41) is provided with a sleeve cover (47) through a bolt, the top end of the sleeve cover (47) is provided with a suspension hanging lug (48), and the suspension hanging lug (48) is arranged on the extension cantilever (31) through a connecting shaft (49).