CN211760853U

CN211760853U - Sand blasting tool for inner surface of steel pipe

Info

Publication number: CN211760853U
Application number: CN202020164872.2U
Authority: CN
Inventors: 穆克亮; 韩洪鹏; 周宝龙
Original assignee: Weifang Sabertwell Precision Machinery Co ltd
Current assignee: Weifang Sabertwell Precision Machinery Co ltd
Priority date: 2020-02-12
Filing date: 2020-02-12
Publication date: 2020-10-27
Anticipated expiration: 2030-02-12

Abstract

The utility model discloses a steel pipe internal surface sandblast instrument, include the sandblast pipe and set up the shower nozzle body on the sandblast pipe, sandblast outside of tubes portion is provided with stator housing, the shower nozzle body includes motor box, sandblast head, connecting pipe, be provided with the rotation motor in the motor box, be provided with the trace axle on the rotation motor, the sandblast head sets up in trace axle end, and the nozzle of sandblast head towards the pipe wall, the overhead sandblast hose that is connected with of sandblast, the overhead bolster that is provided with of sandblast, be provided with the connecting rod on the bolster. The utility model discloses a set up special sandblast head on the sandblast pipe, change the sand grain and spray the direction, increased radial injection power, direct action in steel pipe inner wall, this instrument is practical reliable, has guaranteed sandblast effect and steel pipe internal surface treatment's uniformity, makes stator product bonding quality reliable and stable, and easy operation is convenient, has improved production efficiency.

Description

Sand blasting tool for inner surface of steel pipe

Technical Field

The utility model relates to a sandblast technical field, in particular to steel pipe internal surface sandblast instrument.

Background

The screw pump stator is an important part easy to damage in the screw pump, and the accuracy of a tooth profile curve of the stator and the correctness of material selection must be considered during design and development, so that the service life of the stator is directly determined.

The inner surface of the rubber stator shell of the single-screw oil well pump is subjected to sand blasting treatment to increase the roughness and enhance the bonding strength with the rubber bushing. Because the steel pipe is slender, the jet force of sand grains to the inner wall of the steel pipe along the axial line of the steel pipe is small, the requirement cannot be met, the bonding strength is influenced, the rubber bushing falls off, the product quality is influenced, and the product is scrapped.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a steel pipe internal surface sandblast instrument, solve because the steel pipe is long and thin, the sand grain is little, can not reach the requirement along steel pipe axis straight line injection to the steel pipe inner wall jet power, influence bonding strength, cause rubber bush to drop, influence product quality and cause condemned problem.

In order to solve the technical problem, the technical proposal of the utility model is that

A sand blasting tool for the inner surface of a steel pipe comprises a sand blasting pipe and a nozzle body arranged on the sand blasting pipe, wherein a stator shell is arranged outside the sand blasting pipe, the nozzle body comprises a motor box body, a sand blasting head and a connecting pipe, a rotating motor is arranged in the motor box body, a linkage shaft is arranged on the rotating motor, the linkage shaft is arranged in a hollow mode, the connecting pipe is arranged on the side of the motor box body, the sand blasting head is arranged at the tail end of the linkage shaft, a nozzle of the sand blasting head faces the pipe wall, a sand blasting hose is connected onto the sand blasting head and penetrates through the sand blasting pipe and the linkage shaft respectively, a buffer part is arranged on the sand blasting head, a connecting rod is arranged on the buffer part in a hollow mode, one end of the connecting rod is connected with the linkage shaft, the other end of the connecting rod is connected, the bottom of the supporting leg is matched with the surface of the inner wall of the stator shell to support the spray head body.

Further preferably, the buffer member is composed of a buffer air bag, the connecting rod penetrates through the buffer air bag, and a first rotating member is arranged at the joint of the connecting rod and the linkage shaft.

Further preferably, a fastening connecting piece is arranged at the position of the sand blasting head and the connecting rod, and the fastening connecting piece fastens and connects the sand blasting head and the connecting rod by screwing a bolt.

Further preferably, a sensing contact rod is arranged on the first rotating part connected with the linkage shaft, a sensor is arranged on the side of the motor box body, a sensing rod is arranged on the sensor, and the sensor is electrically connected with the rotating motor.

Further preferably, a second rotating piece is arranged at the joint of the linkage shaft and the sand blasting pipe.

Further preferably, the supporting feet are made of foam.

The utility model has the advantages that:

the special sand blasting head is arranged on the sand blasting pipe, the sand blasting direction is changed, the radial spraying force is increased, and the special sand blasting head directly acts on the inner wall of the steel pipe, so that the tool is practical and reliable, the sand blasting effect and the consistency of the surface treatment of the inner surface of the steel pipe are ensured, the bonding quality of a stator product is stable and reliable, the operation is simple and convenient, and the production efficiency is improved; meanwhile, the buffering part is arranged on the sand blasting head to reduce buffering force when sand blasting is carried out, the inner wall of the steel pipe is prevented from being damaged by collision of the sand blasting pipe due to the fact that the sand blasting pipe cannot be held, supporting legs are arranged on the connecting pipe, physical support can be reduced, and work efficiency is improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural view of a nozzle body according to the present invention;

FIG. 2 is a schematic structural view of the present invention;

fig. 3 is a schematic structural view of the buffer member of the present invention;

fig. 4 is a schematic structural diagram of the middle coupling shaft of the present invention.

In the figure, 1-a sand blasting pipe, 2-a stator shell, 3-a motor box body, 4-a buffer part, 5-a sand blasting head, 6-a supporting leg, 7-a connecting pipe, 8-a sand blasting hose, 10-a fastening connecting part, 11-a first rotating part, 12-a sensor, 13-a sensing contact rod, 14-a linkage shaft, 15-a second rotating part and 40-a connecting rod.

Detailed Description

The following describes the present invention with reference to the accompanying drawings. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. In addition, the technical features related to the embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Referring to fig. 1-4, in the embodiment of the present invention, a sand blasting tool for inner surface of steel pipe comprises a sand blasting pipe 1 and a nozzle body disposed on the sand blasting pipe 1, wherein a stator housing 2 is disposed outside the sand blasting pipe 1, the nozzle body comprises a motor housing 3, a sand blasting head 5 and a connecting pipe 7, a rotating motor is disposed in the motor housing 3, a coupling shaft 14 is disposed on the rotating motor, the coupling shaft 14 is disposed in a hollow manner, the connecting pipe 7 is disposed at a side of the motor housing 3, the sand blasting head 5 is disposed at an end of the coupling shaft 14, a nozzle of the sand blasting head 5 faces a pipe wall, a sand blasting hose 8 is connected to the sand blasting head 5, the sand blasting hose 8 respectively passes through the sand blasting pipe 1 and the coupling shaft 14, a buffer member 4 is disposed on the sand blasting head 5, a connecting rod 40 is disposed on the buffer member 4, and the buffer member 4 is disposed on the sand blasting head 5 to reduce buffer force when sand blasting is performed to prevent the sand blasting, the hollow setting of connecting rod 40, connecting rod 40 one end is connected with interlock axle 14, the connecting rod 40 other end is connected with sandblast 5, be provided with supporting legs 6 on the connecting pipe 7, the supporting legs 6 bottom supports the shower nozzle body with the identical support of stator housing 2 inner wall surface, sets up supporting legs 6 on connecting pipe 7 and can reduce the support of physical power, improves work efficiency.

As further shown in fig. 1-2, the buffer member 4 is composed of a buffer air bag, the connection rod 40 passes through the buffer air bag, a first rotating member 11 is disposed at the joint of the connection rod 40 and the linkage shaft 14, a fastening connecting member 10 is disposed at the joint of the sandblasting head 5 and the connection rod 40, the fastening connecting member 10 fastens the sandblasting head 5 and the connection rod 40 by screwing a bolt, the fastening connecting member 10 is disposed to facilitate replacement of the sandblasting head 5, a sensing touch rod 13 is disposed on the first rotating member 11 connected to the linkage shaft 14, a sensor 12 is disposed at the side of the motor housing 3, a sensing rod is disposed on the sensor 12, the sensor 12 is electrically connected to the rotating motor, the sensing rod touches the sensing touch rod 13 to control the stop of the rotating motor, thereby preventing excessive sandblasting and ensuring uniformity of the pipe wall, a second rotating member 15 is disposed at the joint of the linkage shaft 14 and the sandblasting pipe 1, the second rotating piece 15 is arranged to facilitate rotation of the linkage shaft 14, so that the sand blasting pipe 1 is prevented from rotating along with the rotation, and connection of the sand blasting pipe 1 and external parts is not affected.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It will be apparent to those skilled in the art that various changes, modifications, substitutions and alterations can be made in the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is to be accorded the full scope of the claims.

Claims

1. Steel pipe internal surface sandblast instrument, including the sandblast pipe and set up the shower nozzle body on the sandblast pipe, its characterized in that: the outside stator casing that is provided with of sandblast pipe, the shower nozzle body includes motor box, sandblast head, connecting pipe, be provided with the rotation motor in the motor box, be provided with the trace axle on the rotation motor, the hollow setting of trace axle, the connecting pipe sets up in the side of motor box, the sandblast head sets up in trace axle end, and the nozzle of sandblast head towards the pipe wall, be connected with the sandblast hose on the sandblast head, the sandblast hose passes sandblast pipe and trace axle respectively, the overhead bolster that is provided with of sandblast, be provided with the connecting rod on the bolster, the hollow setting of connecting rod, connecting rod one end and trace axle connection, the connecting rod other end is connected with the sandblast head, be provided with the supporting legs on the connecting pipe, the supporting legs bottom supports the shower nozzle body with stator casing inner wall surface is.

2. The tool for blasting the inner surface of a steel pipe according to claim 1, wherein: the bolster comprises buffering gasbag, the connecting rod passes buffering gasbag, connecting rod and interlock axle junction are provided with first rotating member.

3. The tool for blasting the inner surface of a steel pipe according to claim 1, wherein: the sand blasting head and the connecting rod are provided with fastening connecting pieces, and the fastening connecting pieces are used for fastening and connecting the sand blasting head and the connecting rod through tightening bolts.

4. The steel pipe inner surface blasting tool according to claim 1 or claim 2, wherein: the sensor is arranged on the side of the motor box body, and is electrically connected with the rotating motor.

5. The tool for blasting the inner surface of a steel pipe according to claim 1, wherein: and a second rotating piece is arranged at the joint of the linkage shaft and the sand blasting pipe.

6. The tool for blasting the inner surface of a steel pipe according to claim 1, wherein: the supporting legs are made of foam.