CN217303879U - Mileage wheel structure for detector in steel pipe - Google Patents

Abstract

The utility model provides a mileage wheel structure for detector in steel pipe, this mileage wheel structure include wheel body, shaft, lock nut, bearing and bearing spacer more than two, the bearing inner race embedding wheel of bearing is internal intra-annular, the shaft runs through bearing inner race back connection lock nut, is equipped with the bearing spacer between the bearing inner race of adjacent bearing. The utility model provides a wheel body that how to effectively solve the mileage wheel that exists among the prior art rotates too nimble technical problem.

Description

Mileage wheel structure for detector in steel pipe

Technical Field

The utility model relates to a technical field that quality defect detected in the oil gas conveying pipeline, especially a mileage wheel structure for detector in steel pipe.

Background

When the oil gas steel pipe is subjected to internal detection, the detector moves in the steel pipe by applying air pressure or oil pressure to the pipe opening, so that the detector can rapidly detect in the pipeline, and the detection speed is generally about 5 m/s and is not more than 10 m/s. The distance and the speed of detector operation in steel pipe are all measured by the mileage wheel, and if the mileage wheel structural design is unreasonable will appear losing the number, if the wheel body of mileage wheel rotates too in a flexible way, can be because wheel body inertia can many counts sometimes when the operation in the steel pipe, appear counting increase phenomenon. The actual running mileage and speed of the detector in the steel pipe are not in accordance with the data fed back by the mileage wheel detection, so that data inaccuracy is brought to the later-stage defect verification excavation of the detector, and the defects detected by the detector and the defects of the actual position of the steel pipe are difficult to find and correspond.

How to effectively solve the problem that the wheel body of the mileage wheel rotates too flexibly becomes a problem which needs to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a mileage wheel structure for detector in steel pipe mainly solves the above-mentioned wheel body rotation too nimble technical problem who how effectively solve the mileage wheel that exists.

In order to realize the purpose, the utility model discloses the technical scheme who adopts is: a mileage wheel structure for a detector in a steel pipe, characterized in that: the mileage wheel structure comprises a wheel body, a wheel shaft, a locking nut, more than two bearings and a bearing spacer bush, wherein bearing outer rings of the bearings are embedded in the wheel body, the wheel shaft penetrates through bearing inner rings and then is connected with the locking nut, and the bearing spacer bush is arranged between the bearing outer rings of the adjacent bearings.

Furthermore, the number of the bearings is two, namely a left bearing and a right bearing, and a bearing spacer bush is arranged between the outer ring of the left bearing and the outer ring of the right bearing.

Furthermore, the surface of the wheel body is provided with knurls and/or the surface of the wheel body is provided with inclined grooves which are processed at equal intervals on the circumference.

Furthermore, this mileage wheel structure still includes left wheel arm, right wheel arm, left axle spacer bush, right axle spacer bush, the shaft runs through left wheel arm, left axle spacer bush, the inner circle of left bearing, bearing spacer bush, the inner circle of right bearing, right axle spacer bush and right wheel arm back connection lock nut in proper order.

Further, this mileage wheel structure still includes left gland and right gland, and left gland cover is established on the left axle spacer sleeve, and right gland cover is established on the right axle spacer sleeve.

Further, this mileage wheel structure still includes the target wheel, and the target wheel sets up in wheel body one side.

Further, a sensor support is arranged between the left wheel arm and the right wheel arm, and a sensor is arranged on the sensor support.

Further, the sensor is located directly below the target wheel.

Furthermore, the left gland, the wheel body, the target wheel and the right gland are connected into a whole.

A mileage wheel structure for a detector in a steel pipe, characterized in that: the odometer wheel structure comprises a wheel body, a wheel shaft, a locking nut, two bearings and a bearing spacer, wherein bearing outer rings of the bearings are embedded in the wheel body, the wheel shaft penetrates through the bearing inner rings and then is connected with the locking nut, the bearing spacer is arranged between the bearing outer rings of the two bearings, the positions of the locking nut on the wheel shaft are adjusted to control the wheel shaft and the locking nut to apply acting forces on the two bearing inner rings, the acting forces are transmitted between the bearing outer rings of the two bearings and the bearing spacer through a rolling body in the bearings, and the friction force between the rolling body in the bearings and the corresponding bearing inner rings and the bearing outer rings is adjusted to further adjust the flexibility of the wheel body.

In view of the above technical characteristics, the utility model has the advantages of as follows:

the utility model provides a mileage wheel structure for detector in steel pipe, through shaft and lock nut pre-load axial load, this pre-load axial load is adjusted by the lock nut of shaft right-hand member, and through lock nut's elasticity regulation, can increase or reduce the axial load that adds on the bearing, reaches the interior outer lane rotation flexibility ratio of bearing. The damping is transmitted to the wheel body through the bearing outer ring (comprising the outer ring of the left bearing and the outer ring of the right bearing), so that the problem of inaccurate detection precision caused by rotation inertia can not occur when the wheel body works.

Drawings

Fig. 1 is a schematic view of a odometer wheel structure for an in-steel pipe detector according to embodiment 1.

Fig. 2 is a partially enlarged view of fig. 1.

Detailed Description

The present invention will be further described with reference to the following detailed description. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that various changes and modifications of the present invention may be made by those skilled in the art after reading the teachings of the present invention, and these equivalents also fall within the scope of the appended claims.

Referring to fig. 1 and 2, embodiment 1, this embodiment 1 provides a odometer wheel structure for a detector in a steel pipe, which is characterized in that: the odometer wheel structure comprises a wheel body 1, a wheel shaft 2, a locking nut 3, more than two bearings and a bearing spacer 5, wherein bearing outer rings of the bearings are embedded in an inner ring of the wheel body 1, the wheel shaft 2 penetrates through bearing inner rings and then is connected with the locking nut 3, and the bearing spacer 5 is arranged between the bearing outer rings of adjacent bearings.

In this embodiment 1, preferably, the number of the bearings is two, and the two bearings are respectively a left bearing 4-1 and a right bearing 4-2, and a bearing spacer 5 is arranged between an outer ring of the left bearing 4-1 and an outer ring of the right bearing 4-2. The bearing spacer 5 supports the outer ring of the left bearing 4-1 against the outer ring of the right bearing 4-2 for transmitting an acting force (the acting force is applied to the inner ring 4-1-1 of the left bearing and the inner ring 4-2-1 of the right bearing together or indirectly by the wheel shaft 2 and the lock nut 3, and then is transmitted to the outer ring 4-1-3 of the left bearing and the outer ring 4-2-3 of the right bearing through the rolling elements 4-1-2 of the left bearing and the rolling elements 4-2-2 of the right bearing, respectively), so that friction force is increased or reduced between the inner ring 4-1-1 of the left bearing and the outer ring 4-1-3 of the left bearing and the rolling elements 4-1-2 of the left bearing, and the inner ring 4-2-1 of the right bearing and the outer ring 4-2-3 of the right bearing and the rolling elements 4-2-2 of the right bearing The friction force is increased or reduced, and the rotation flexibility of the wheel body 1 is indirectly adjusted under the driving of the outer ring 4-1-3 of the left bearing and the outer ring 4-2-3 of the right bearing.

The surface of the wheel body 1 is provided with knurls 1-1 which can increase the roughness of the surface, and/or the surface of the wheel body 1 is provided with inclined grooves 1-2 which are processed at equal intervals on the circumference, so that the wheel body 1 is prevented from slipping when contacting with a steel pipe, and the wheel body can be effectively prevented from slipping in the steel pipe.

The odometer wheel structure further comprises a left wheel arm 6-1, a right wheel arm 6-2, a left shaft spacer 7-1 and a right shaft spacer 7-2, wherein the wheel shaft 2 sequentially penetrates through the left wheel arm 6-1, the left shaft spacer 7-1, an inner ring of a left bearing 4-1, a bearing spacer 5, an inner ring of a right bearing 4-2, the right shaft spacer 7-2 and the right wheel arm 6-2 and then is connected with a locking nut 3. The left wheel arm 6-1 and the right wheel arm 6-2 play a role in fixing the wheel shaft 2, meanwhile, the left wheel arm 6-1 and the left shaft spacer 7-1 help the wheel shaft 2 and the inner ring 4-1-1 of the left bearing to conduct acting force, and the right wheel arm 6-2 and the right shaft spacer 7-2 help the wheel shaft 2 and the inner ring 4-2-1 of the right bearing to conduct acting force.

The mileage wheel structure also comprises a target wheel 9, wherein the target wheel 9 is arranged on one side of the wheel body 1.

A sensor support 10-1 is arranged between the left wheel arm 6-1 and the right wheel arm 6-2, a sensor 10 is arranged on the sensor support 10-1, the sensor 10 is positioned under the target wheel 9, the sensor 10 can be positioned on the same section with the target wheel 9, and the sensor 10 can sense the target wheel 9 conveniently.

The mileage wheel structure further comprises a left gland 8-1 and a right gland 8-2, wherein the left gland 8-1 is sleeved on the left shaft spacer 7-1, and the right gland 8-2 is sleeved on the right shaft spacer 7-2.

The left gland 8-1, the wheel body 1, the target wheel 9 and the right gland 8-2 are connected into a whole, for example, connected into a whole through bolts. The left gland 8-1 is used for fixing the left shaft spacer 7-1, and the right gland 8-2 is used for fixing the right shaft spacer 7-2. The target wheel 9 rotates synchronously with the wheel body 1.

The acting force applied to the two bearing inner rings by the wheel shaft and the locking nut 3 is controlled by adjusting the position of the locking nut 3 on the wheel shaft, the acting force is transmitted between the bearing outer rings of the two bearings and the bearing spacer 5 through the rolling body in the bearing, the friction force between the rolling body in the bearing and the corresponding bearing inner rings and the bearing outer rings is adjusted (namely certain damping is increased), and further the flexibility of the wheel body 1 is adjusted.

That is to say the utility model provides a preliminary load axial load of mileage wheel structure is adjusted by the lock nut 3 of shaft right-hand member, and through lock nut 3's elasticity regulation, can increase or reduce the axial load that adds on the bearing, reaches the interior outer lane rotation flexibility ratio of bearing. When the wheel body 1 serving as the mileage wheel works in a steel pipe, the flexibility is not needed, certain damping is required, and otherwise, the detection mileage is inaccurate due to the rotation inertia. Damping is transmitted to the wheel body through the bearing outer ring (comprising the outer ring of the left bearing 4-1 and the outer ring of the right bearing 4-2), so that the problem of inaccurate detection precision caused by rotation inertia can not occur when the wheel body 1 works.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims (10)

1. A mileage wheel structure for a detector in a steel pipe, characterized in that: the mileage wheel structure comprises a wheel body (1), a wheel shaft (2), a locking nut (3), more than two bearings and a bearing spacer sleeve (5), wherein bearing outer rings of the bearings are embedded in an inner ring of the wheel body (1), the wheel shaft (2) penetrates through inner rings of the bearings and then is connected with the locking nut (3), and the bearing spacer sleeve (5) is arranged between the bearing outer rings of adjacent bearings.

2. The odometer wheel structure for an in-steel pipe detector according to claim 1, wherein: the bearing comprises a left bearing (4-1) and a right bearing (4-2), and a bearing spacer (5) is arranged between the outer ring of the left bearing (4-1) and the outer ring of the right bearing (4-2).

3. The odometer wheel structure for an in-steel pipe detector according to claim 2, wherein: knurling (1-1) is arranged on the surface of the wheel body (1), and/or inclined grooves (1-2) which are processed at equal intervals on the circumference are arranged on the surface of the wheel body (1).

4. A odometer wheel structure for an in-steel pipe detector according to claim 2 or 3, wherein: the mileage wheel structure further comprises a left wheel arm (6-1), a right wheel arm (6-2), a left shaft spacer bush (7-1) and a right shaft spacer bush (7-2), wherein the wheel shaft (2) sequentially penetrates through the left wheel arm (6-1), the left shaft spacer bush (7-1), an inner ring of a left bearing (4-1), a bearing spacer bush (5), an inner ring of a right bearing (4-2), the right shaft spacer bush (7-2) and the right wheel arm (6-2).

5. The odometer wheel structure for an in-steel pipe detector according to claim 4, wherein: the mileage wheel structure further comprises a left gland (8-1) and a right gland (8-2), wherein the left gland (8-1) is sleeved on the left shaft spacer bush (7-1), and the right gland (8-2) is sleeved on the right shaft spacer bush (7-2).

6. The odometer wheel structure for an in-steel pipe detector according to claim 5, wherein: the mileage wheel structure further comprises a target wheel (9), and the target wheel (9) is arranged on one side of the wheel body (1).

7. The odometer wheel structure for an in-steel pipe detector according to claim 6, wherein: a sensor support (10-1) is arranged between the left wheel arm (6-1) and the right wheel arm (6-2), and a sensor (10) is arranged on the sensor support (10-1).

8. The odometer wheel structure for an in-steel pipe detector according to claim 7, wherein: the sensor (10) is located just below the target wheel (9).

9. The odometer wheel structure for the detector in the steel pipe according to claim 8, wherein: the left gland (8-1), the wheel body (1), the target wheel (9) and the right gland (8-2) are connected into a whole.

10. A mileage wheel structure for a detector in a steel pipe, characterized in that: the odometer wheel structure comprises a wheel body (1), a wheel shaft (2), a locking nut (3), two bearings and a bearing spacer (5), wherein bearing outer rings of the bearings are embedded into an inner ring of the wheel body (1), the wheel shaft (2) penetrates through the bearing inner rings and then is connected with the locking nut (3), the bearing spacer (5) is arranged between the bearing outer rings of the two bearings, the positions of the locking nut (3) on the wheel shaft are adjusted to control the wheel shaft and the locking nut (3) to apply acting forces on the two bearing inner rings, the acting forces are transmitted between the bearing outer rings of the two bearings and the bearing spacer (5) through a rolling body in the bearings, and the friction force between the bearing inner rings and the bearing outer rings is adjusted to correspond to a rolling body in the bearings, so that the flexibility of the wheel body (1) is adjusted.

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