CN221111187U

CN221111187U - Polishing device for pipe welded junction

Info

Publication number: CN221111187U
Application number: CN202323000182.6U
Authority: CN
Inventors: 聂海涛; 何峰; 张亚丽
Original assignee: Petrochemical Engineering Quality Supervision Station; Sinopec Engineering Quality Monitoring Co ltd; China Petrochemical Corp
Current assignee: Petrochemical Engineering Quality Supervision Station; Sinopec Engineering Quality Monitoring Co ltd; China Petrochemical Corp
Priority date: 2023-11-07
Filing date: 2023-11-07
Publication date: 2024-06-11
Anticipated expiration: 2033-11-07

Abstract

The utility model belongs to the field of petrochemical industry, and particularly discloses a polishing device for a pipeline welded junction. The polishing device comprises a polishing mechanism, wherein the polishing mechanism comprises a first driving assembly and a second driving assembly, an adjusting assembly which is used for connecting the first driving assembly and the second driving assembly together, and a supporting plate, wherein the supporting plate comprises a first connecting part, and an abrasive belt which is sleeved outside the first driving assembly, the second driving assembly and the supporting plate, and the driving mechanism. Wherein the sanding belt is configured to be movable in a direction towards the adjustment assembly during sanding so as to engage the first connection. The utility model has simple structure and is convenient to operate and carry.

Description

Polishing device for pipe welded junction

Technical Field

The utility model relates to the field of petrochemical industry, in particular to a polishing device for a pipeline welded junction.

Background

The abrasive belt machine is a common polishing tool in petrochemical industry, and is mainly divided into a table abrasive belt machine, a vertical abrasive belt machine and a hand-held abrasive belt machine. The hand-held abrasive belt machine is small in size, convenient to operate and carry and is usually used for polishing in a construction site.

However, the hand-held belt sander is mostly in a straight belt shape, so that sanding operation can be performed only in a point contact or line contact mode with low efficiency between the abrasive belt and the pipeline, and the requirement of construction progress is difficult to meet.

Disclosure of utility model

The utility model aims to provide a polishing device for a pipe welded junction, which is characterized in that a first connecting part is changed from a straight plate structure to an arc surface structure, so that the contact surface between the pipe welded junction and an abrasive belt is effectively increased, and the polishing efficiency is further improved to meet the requirement of construction progress. In addition, the device has simple structure and is convenient to operate and carry.

According to the utility model, there is provided a grinding device for pipe weld joints, comprising a grinding mechanism comprising a first drive assembly and a second drive assembly, each extending in a longitudinal direction, an adjustment assembly connecting the first drive assembly with the second drive assembly, and a support plate extending transversely from the first drive assembly and below the adjustment assembly, wherein the support plate comprises a first connection part configured as a cambered surface recessed in a direction towards the adjustment assembly, an abrasive belt sleeved outside the first drive assembly, the second drive assembly and the support plate, and a drive mechanism connected with the first drive assembly and capable of causing the abrasive belt to rotate, wherein the abrasive belt is configured to move towards the adjustment assembly during grinding so as to be in fit with the first connection part.

In one embodiment, the support plate further comprises a second connection portion and a third connection portion configured as a straight plate structure, wherein a free end of the second connection portion is formed integrally with the first end of the first connection portion, and a connection end of the third connection portion is formed integrally with the second end of the first connection portion.

In one embodiment, an arc edge is formed at the free end of the third connecting portion.

In one embodiment, the adjustment assembly includes a mount configured as a hollow sleeve, and a telescoping rod extending laterally from the mount.

In one embodiment, the first driving assembly comprises a first driving shaft and a first shell connected with the first driving shaft, the free end of the fixing seat is connected with the first shell, and the fixed end of the second connecting portion is connected with the first shell.

In one embodiment, the second drive assembly includes a second drive shaft and a second housing coupled to the second drive shaft, the free end of the telescoping rod being coupled to the second housing.

In one embodiment, the first drive shaft has a larger cross-sectional area than the second drive shaft.

In one embodiment, the polishing device for pipe weld joints further comprises an arc-shaped baffle plate arranged above the first driving shaft, and the arc-shaped baffle plate is fixedly connected with the driving mechanism through bolts.

In one embodiment, the grinding device for pipe weld includes an auxiliary handle that can extend into the second housing to form a secure connection.

In one embodiment, the drive mechanism is an electric motor.

Compared with the prior art, the utility model has the advantages that: the utility model provides a polishing device for a pipe weld joint, which changes a straight plate structure into an arc surface structure at a first connecting part, so that the contact surface between the pipe weld joint and an abrasive belt is effectively increased, and the polishing efficiency is further improved to meet the requirement of construction progress. In addition, the device has simple structure and is convenient to operate and carry.

Drawings

The utility model will be described in detail below with reference to the attached drawing figures, wherein:

fig. 1 schematically shows the construction of a grinding device for pipe craters according to the utility model.

In the drawings, like parts are designated with like reference numerals. The figures are not drawn to scale.

Detailed Description

The utility model will be further described with reference to the accompanying drawings.

Fig. 1 schematically shows the construction of a grinding device 100 for pipe craters according to the utility model. As shown in fig. 1, a polishing apparatus 100 for pipe craters according to the present utility model mainly includes a polishing mechanism 10, a sanding belt 60, and a driving mechanism 70. Wherein sanding belt 60 is sleeved outside of sanding mechanism 10. The driving mechanism 70 is connected with the polishing mechanism 10, and the driving mechanism 70 can drive part of the polishing mechanism 10 to rotate, further drive the abrasive belt 60 to rotate, and further finish the polishing operation of the welded junction of the pipeline.

According to the present utility model, as shown in FIG. 1, the grinding mechanism 10 includes a first drive assembly 20, a second drive assembly 30, and an adjustment assembly 40. Wherein, the first driving assembly 20 and the second driving assembly 30 are both distributed along the longitudinal extension. The adjusting assemblies 40 extend in a transverse direction, and a first end of the adjusting assembly 40 is fixedly connected with the first driving assembly 20, and a second end of the adjusting assembly 40 is fixedly connected with the second driving assembly 30. According to one embodiment of the present utility model, the adjustment assembly 40 is configured to meet sanding requirements by adjusting the spacing between the first drive assembly 20 and the second drive assembly 30.

According to the present utility model, as shown in FIG. 1, the grinding mechanism 10 further includes a support plate 50. The support plates 50 extend laterally from the first drive assembly 20 and the support plates 50 are below the adjustment assembly 40. In this manner, a portion of abrasive belt 60 that moves toward adjustment assembly 40 during sanding is facilitated to be received.

According to the present utility model, as shown in fig. 1, the support plate 50 includes a first connection portion 51 configured in an arc-shaped structure. Specifically, the first connection portion 51 is configured as an arc surface recessed in a direction approaching the adjustment assembly 40. Like this, in the in-process of polishing operation, abrasive band 60 is moved towards the direction of adjusting part 40 under the effect of pipeline welded junction to make abrasive band 60 and first connecting portion 51 laminating, and then effectively increased the area of contact between pipeline welded junction and abrasive band 60, further improved the efficiency of polishing in order to satisfy the requirement of construction progress.

According to the present utility model, as shown in fig. 1, the support plate 50 further includes a second connection portion 52 and a third connection portion 53. Wherein the second connection part 52 is constructed in a straight plate structure, and a fixed end of the second connection part 52 is connected with a first housing (described later), and a free end of the second connection part 52 is constructed in an integral structure with a first end of the first connection part 51. The third connection portion 53 is constructed in a straight plate structure, and a fixed end of the third connection portion 53 and a second end of the first connection portion 51 are constructed in an integral structure. In this manner, abrasive belt 60 is more easily moved toward adjustment assembly 40 by the pipe lug such that the inner surface of abrasive belt 60 engages the outer surface of first attachment portion 51, further increasing the contact area between the pipe lug and abrasive belt 60.

According to one embodiment of the utility model, an arc edge is provided at the free end of the third connection portion 53. In this way, the sanding belt 60 can be smoother in the process of rotation, damage to the sanding belt 60 by the supporting plate 50 in the process of sanding is effectively avoided, and the service life of the sanding belt 60 is further prolonged. In addition, the support plate 50 is more stable and safer when the polishing device 100 for pipe craters performs polishing work by the abrasive belt 60.

According to one embodiment of the present utility model, the adjustment assembly 40 includes a fixed seat 41 and a telescoping rod 42. Wherein the fixing seat 41 is configured as a hollow sleeve and extends in a lateral direction. The telescopic rods 42 extend from the fixed seat 41 and are distributed along the transverse extension. Thus, the spacing between the first drive assembly 20 and the second drive assembly 30 can be varied by adjusting the length of the telescoping rod 42. The principle of operation of the telescopic rod 42 is well known to those skilled in the art and will not be described in detail.

According to one embodiment of the present utility model, the first driving assembly 20 includes a first driving shaft 21 and a first housing connected to the first driving shaft 21. Wherein the first drive shaft 21 is connected to the drive mechanism 70. The first driving shaft 21 is used as a driving shaft in polishing operation, and the first driving shaft 21 can be sequentially rotated under the driving of the driving mechanism 70 to further drive the abrasive belt 60 to rotate. The first housing is connected to the free end of the holder 41 such that the holder 41 is effectively defined in both the longitudinal and vertical positions.

According to one embodiment of the present utility model, the second driving assembly 30 includes a second driving shaft 31 and a second housing connected to the second driving shaft 31. Wherein second drive shaft 31 acts as a driven shaft during the sanding operation, thus facilitating the rotation of sanding belt 60. The second housing is connected to the free end of the telescoping rod 42 such that the telescoping rod 42 is effectively constrained in both the longitudinal and vertical positions.

According to one embodiment of the present utility model, the cross-sectional area of the first drive shaft 21 is larger than the cross-sectional area of the second drive shaft 31. In this way, the contact area between first drive shaft 21 and sanding belt 60 is made greater. In this way, belt 60 can more easily rotate in a orderly manner under the drive of first drive shaft 21. It will be readily appreciated that there is some friction between the inner surface of abrasive belt 60 and the outer surface of first drive shaft 21, thereby enabling abrasive belt 60 to be more easily driven into rotation.

In one embodiment of the present utility model, the polishing apparatus 100 for pipe craters also includes a curved baffle 1. The arc baffle 1 is disposed above the first drive shaft 21. On the one hand, the arc baffle 1 can increase the holding area more, so that the polishing device 100 for pipe welded junctions can perform polishing work more stably. On the other hand, the arc-shaped baffle plate 1 can play a certain limiting role on the abrasive belt 60, so that the inner surface of the abrasive belt 60 can be always attached to the outer surface of the first driving shaft 21. Thereby, a safety accident caused by the abrasive belt 60 being separated from the first drive shaft 21 is avoided.

In one embodiment of the present utility model, the grinding apparatus 100 for pipe craters also includes an auxiliary handle 2. The auxiliary handle 2 can be connected to the second drive assembly 30 in a detachable manner. In particular, one end of the auxiliary handle 2 can extend into the second housing, thereby forming an effective fixed connection. Thus, by adding different grip portions, the polishing apparatus 100 for pipe craters can perform polishing work more stably.

According to one embodiment of the present utility model, the driving mechanism 70 is an electric motor, that is, the polishing device 100 for pipe weld is driven by the electric motor to rotate the first driving shaft 21, so that polishing operation is efficiently completed and the requirement of construction progress is met.

The utility model provides a polishing device 100 for a pipe welded junction, which effectively increases the contact surface between the pipe welded junction and an abrasive belt 60 by changing a straight plate structure of a first connecting part 51 into an arc surface structure, and further improves polishing efficiency to meet the requirement of construction progress. In addition, the device has simple structure and is convenient to operate and carry.

The above is only a preferred embodiment of the present utility model, but the scope of the present utility model is not limited thereto. Modifications and variations may readily be made by those skilled in the art within the scope of the present disclosure, and such modifications and variations are intended to be included within the scope of the present utility model. Therefore, the protection scope of the utility model is subject to the protection scope of the claims.

Claims

1. A grinding apparatus for pipe weld joints, comprising:

a grinding mechanism (10), the grinding mechanism (10) comprises a first driving component (20) and a second driving component (30) which extend along the longitudinal direction, an adjusting component (40) which connects the first driving component (20) and the second driving component (30) together, and a supporting plate (50) which extends along the transverse direction from the first driving component (20) and is positioned below the adjusting component (40), wherein the supporting plate (50) comprises a first connecting part (51) which is configured to be a concave cambered surface towards the direction approaching the adjusting component (40),

An abrasive belt (60) sleeved outside the first driving component (20), the second driving component (30) and the supporting plate (50), and

A drive mechanism (70) coupled to the first drive assembly (20) and capable of causing rotation of the abrasive belt (60),

Wherein the sanding belt (60) is configured to be movable in the direction of the adjustment assembly (40) during sanding so as to engage the first connection (51).

2. The grinding device for pipe weld joints according to claim 1, wherein the support plate (50) further comprises a second connection part (52) and a third connection part (53) configured as a straight plate structure, wherein the free end of the second connection part (52) is integral with the first end of the first connection part (51), and the connection end of the third connection part (53) is integral with the second end of the first connection part (51).

3. Grinding device for pipe craters according to claim 2, characterized in that an arc edge is formed at the free end of the third connection portion (53).

4. A grinding device for pipe weld joints according to claim 3, characterized in that the adjustment assembly (40) comprises a holder (41) configured as a hollow sleeve, and a telescopic rod (42) extending transversely from the holder (41).

5. The polishing apparatus for pipe crater according to claim 4, wherein the first driving assembly (20) includes a first driving shaft (21), and a first housing connected to the first driving shaft (21), the free end of the fixing base (41) is connected to the first housing, and the fixed end of the second connecting portion (52) is connected to the first housing.

6. Grinding device for pipe craters according to claim 5, characterized in that the second drive assembly (30) comprises a second drive shaft (31) and a second housing connected to the second drive shaft (31), the free end of the telescopic rod (42) being connected to the second housing.

7. Grinding device for pipe craters according to claim 6, characterized in that the cross-sectional area of the first drive shaft (21) is larger than the cross-sectional area of the second drive shaft (31).

8. The grinding device for pipe craters according to claim 7, characterized in that the grinding device for pipe craters further comprises a curved baffle (1) arranged above the first drive shaft (21), the curved baffle (1) being fixedly connected with the drive mechanism (70) by means of bolts.

9. A grinding device for pipe craters according to claim 8, characterized in that the grinding device for pipe craters comprises an auxiliary handle (2), which auxiliary handle (2) can be extended into the second housing to form a fixed connection.

10. A sanding device for pipe craters according to any of claims 1 to 3, characterized in that the drive mechanism (70) is an electric motor.