CN210069252U

CN210069252U - Roller rotating shaft structure of pipeline robot

Info

Publication number: CN210069252U
Application number: CN201920743686.1U
Authority: CN
Inventors: 娄保东
Original assignee: Nanjing Pipe Intelligent Technology Co Ltd
Current assignee: Nanjing Pipe Intelligent Technology Co Ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-02-14
Anticipated expiration: 2029-05-22

Abstract

The utility model discloses a pipeline robot gyro wheel pivot structure, this pivot are the step shaft, including first section, second section and the third section that links firmly in proper order. The end surfaces of the first section and the second section are circular, and the end surface of the third section is non-circular; the diameter of the second section is larger than that of the first section, and the diameter of the second section is larger than that of a circumscribed circle of the end face of the third section. The two ends of the first section are sleeved with bearings, the middle of the first section is sleeved with a gear, the second section is sleeved with a sealing ring and a framework seal, and the roller fixing sleeve provided with the buoyancy assembly is arranged on the third section in a fixing mode. Because the end face of the third section is non-circular, and the central hole of the roller is also a non-circular hole, the third section is firmly connected with the roller, when the roller of the rotating shaft belt wheel rotates, the rotating shaft and the roller buoyancy assembly cannot rotate relatively, and the phenomenon of slipping or damaging the buoyancy assembly cannot occur.

Description

Roller rotating shaft structure of pipeline robot

Technical Field

The utility model belongs to pipeline robot field, concretely relates to pipeline robot gyro wheel pivot structure.

Background

Municipal pipelines are extremely harsh in environment, and are easy to corrode and fatigue after long-term use, or cause leakage accidents caused by the fact that potential defects inside the pipelines are broken, particularly water pipelines are easy to block and the like. Therefore, the pipe-in detection and dredging of the pipeline are very important practical engineering, most of the pipe-in detection and dredging at present are operated manually and limited by factors such as the size of the pipeline and the severe environment, and the working intensity is high and the working efficiency is low. Based on this problem, pipeline robots have emerged at present.

The applicant has studied a robot for operation in non-full water pipelines, which needs to float on the water surface in the pipeline to detect the condition of the surrounding pipeline wall, and therefore designed buoyancy increasing rollers on which lightweight material acting buoyancy modules are arranged. In the prior art, the end face of the rotating shaft connected with the roller is circular, and due to the characteristics of small strength and easy deformation of the light material, the buoyancy assembly is not firmly connected with the rotating shaft, and particularly when the rotating shaft belt wheel rotates, the rotating shaft belt wheel easily rotates relative to the buoyancy assembly, so that the phenomenon of slipping or damaging the buoyancy assembly is caused.

Disclosure of Invention

An object of the utility model is to provide a pipeline robot gyro wheel pivot structure, the pivot terminal surface of being connected with the gyro wheel among the solution prior art is circular, and light material intensity is less, yielding, leads to buoyancy module to be connected insecure with the pivot, and when especially pivot band pulley gyro wheel rotated, easily takes place relative rotation with buoyancy module, leads to skidding or with the technical problem of the phenomenon of buoyancy module damage.

The utility model discloses a solve above-mentioned technical problem, adopt following technical scheme:

the utility model provides a pipeline robot gyro wheel pivot, this pivot is the step shaft, including first section, second section and the third section that links firmly in proper order.

The end surfaces of the first section and the second section are circular, and the end surface of the third section is non-circular; the diameter of the second section is larger than that of the first section, and the diameter of the second section is larger than that of a circumscribed circle of the end face of the third section.

The two ends of the first section are sleeved with bearings, the middle of the first section is sleeved with a gear, the second section is sleeved with a sealing ring and a framework seal, and the roller fixing sleeve provided with the buoyancy assembly is arranged on the third section in a fixing mode. Because the end face of the third section is non-circular, and the central hole of the roller is also a non-circular hole, the third section is firmly connected with the roller, when the roller of the rotating shaft belt wheel rotates, the rotating shaft and the roller buoyancy assembly cannot rotate relatively, and the phenomenon of slipping or damaging the buoyancy assembly cannot occur.

In a further improvement, the rotating shaft is a hollow shaft, and the cavity corresponding to the third section is a threaded hole. The hollow shaft is arranged, so that the gravity is reduced, and the buoyancy is increased. The cavity corresponding to the third section is a threaded hole, the bolt is screwed into the threaded hole, the tail end of the bolt is fixedly connected with a limiting block, and the limiting block plays a role in limiting and fastening the roller to prevent the roller from moving along the axial direction.

In a further improvement, the free end of the first section is provided with a clamping groove for mounting a bearing limiting plate. The limiting plate is connected with the rotating shaft through the clamping groove and abuts against the inner ring of the bearing, and the bearing is prevented from moving along the axial direction.

In a further improvement, the first section is provided with a positioning hole along the radial direction, the gear is sleeved on the first section of the rotating shaft, and the positioning pin is inserted into the positioning hole to fasten the gear and the rotating shaft, so that the gear is prevented from moving along the axial direction and/or rotating relative to the rotating shaft.

The end face of the third section is in a regular triangle shape, so that the processing is convenient, the structure is simple, and the stability is good.

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

because the end face of the third section is non-circular, and the central hole of the roller is also a non-circular hole, the third section is firmly connected with the roller, when the roller of the rotating shaft belt wheel rotates, the rotating shaft and the roller buoyancy assembly cannot rotate relatively, and the phenomenon of slipping or damaging the buoyancy assembly cannot occur.

Drawings

Fig. 1 is a perspective view of a roller rotating shaft of the pipeline robot.

Fig. 2 is a front view of a roller shaft of the pipe robot.

Fig. 3 is a sectional view a-a of fig. 2.

Fig. 4 is a view showing an installation structure of the rotary shaft, the gear and the bearing.

Detailed Description

In order to make the purpose and technical solution of the present invention clearer, the following will combine the embodiments of the present invention to clearly and completely describe the technical solution of the present invention.

As shown in fig. 1-4, a roller rotating shaft of a pipeline robot, the rotating shaft 1 is a stepped shaft, and includes a first section 11, a second section 12 and a third section 13, which are sequentially and fixedly connected.

Wherein, the end surfaces of the first section 11 and the second section 12 are circular, and the end surface of the third section 13 is non-circular; the diameter of the second section is larger than that of the first section, and the diameter of the second section is larger than that of a circumscribed circle of the end face of the third section.

The two ends of the first section 11 are sleeved with bearings 2, the middle of the first section is sleeved with a gear 3, the second section is sleeved with a sealing ring 6 and a skeleton seal 5, and the roller provided with the buoyancy assembly is fixedly sleeved on the third section. Because the end face of the third section is non-circular, and the central hole of the roller is also a non-circular hole, the third section is firmly connected with the roller, when the roller of the rotating shaft belt wheel rotates, the rotating shaft and the roller buoyancy assembly cannot rotate relatively, and the phenomenon of slipping or damaging the buoyancy assembly cannot occur.

In this embodiment, the rotating shaft 1 is a hollow shaft, and the cavity corresponding to the third section 13 is a threaded hole 16. The hollow shaft is arranged, so that the gravity is reduced, and the buoyancy is increased. The cavity corresponding to the third section is a threaded hole, the bolt is screwed into the threaded hole, the tail end of the bolt is fixedly connected with a limiting block, and the limiting block plays a role in limiting and fastening the roller to prevent the roller from moving along the axial direction.

In this embodiment, the free end of the first segment 11 is provided with a slot 17 for mounting a bearing limit plate. The limiting plate is connected with the rotating shaft through the clamping groove and abuts against the inner ring of the bearing, and the bearing is prevented from moving along the axial direction. In this embodiment, the locking groove is annularly arranged along the outer circumferential surface of the rotating shaft.

In other embodiments, the card slot may be other shapes.

In this embodiment, the first section 11 is radially provided with a positioning hole 15, the gear is sleeved on the first section of the rotating shaft, and the positioning pin is inserted into the positioning hole to fasten the gear with the rotating shaft, so as to prevent the gear from shifting in the axial direction and/or rotating relative to the rotating shaft.

In this embodiment, the end surface of the third section 13 is a regular triangle, which is convenient for processing, and has a simple structure and good stability.

In other embodiments, the end face of the third section may be rectangular or other non-circular shape, or irregular.

What has not been described in detail in the present invention is the prior art or can be realized by the prior art, and the specific embodiment of the present invention is only the preferred embodiment of the present invention, which is not intended to limit the scope of the present invention. All equivalent changes and modifications made according to the content of the claims of the present invention should be regarded as the technical scope of the present invention.

Claims

1. A pipeline robot roller rotating shaft is characterized in that the rotating shaft is a stepped shaft and comprises a first section, a second section and a third section which are fixedly connected in sequence;

2. The pipeline robot roller spindle of claim 1, wherein the spindle is a hollow shaft and the corresponding cavity of the third section is a threaded hole.

3. The pipeline robot roller rotating shaft according to claim 1 or 2, wherein the free end of the first section is provided with a clamping groove for mounting a bearing limiting plate.

4. The roller rotating shaft of the pipeline robot as claimed in claim 3, wherein the first section has positioning holes along a radial direction.

5. The roller spindle of a pipeline robot according to claim 1, wherein the end surface of the third section is triangular.