CN221640580U - Shot blasting machine outside steel pipe - Google Patents

Abstract

The utility model relates to a steel pipe external shot blasting machine, which belongs to the technical field of steel pipe processing. The utility model separates impurities mixed in sand and shot into an impurity collection box by arranging a first mesh screening bucket at the bottom of the chassis, and the sand and shot lifted by the lifting mechanism are subjected to secondary impurity removal through an impurity separation cylinder, thereby further reducing the impurity content mixed in the sand and shot, so that the sand and shot are recycled in the process of shot blasting, reducing the problem of impurities causing damage to the workpiece surface, thereby ensuring the treatment effect of the workpiece surface, being able to realize the automatic cleaning function of impurities, saving time and effort, and improving work efficiency.

Description

A steel pipe external shot blasting machine

Technical Field

The utility model belongs to the technical field of steel pipe processing, and in particular relates to a steel pipe external shot blasting machine.

Background Art

The steel pipe outer wall shot blasting machine is a device for shot blasting and cleaning the outer wall of the steel pipe. The shot blasting machine refers to a casting equipment that uses high-speed projectiles thrown by the shot blaster to clean or strengthen the surface of the casting. It can remove sand, core and clean the casting.

The existing shot blasting machine will recycle the sand and shot during use. However, when the workpiece surface is treated by shot blasting, some fine impurities such as oxide scale and rust on the workpiece surface will be knocked off. At present, the sand and shot are mainly taken out manually and screened regularly to clean the impurities. This method is cumbersome to operate, time-consuming and labor-intensive, and has low work efficiency. In addition, impurities are mixed in the sand and shot and recycled for shot blasting, which can easily damage the workpiece surface and reduce the treatment effect of the workpiece surface.

Summary of the invention

In order to overcome the problems in the background technology of manually taking out sand shots regularly for screening and cleaning impurities, which is cumbersome, time-consuming and labor-intensive, and has low work efficiency, and impurities are mixed in the sand shots and recycled for shot blasting, which easily damages the surface of the workpiece and reduces the treatment effect of the workpiece surface, the utility model provides a steel pipe external shot blasting machine; by arranging a first mesh screening bucket at the bottom of the chassis, impurities mixed in the sand shots are separated into an impurity collection box, and the sand shots lifted by the lifting mechanism are passed through an impurity separation cylinder for secondary impurity removal, which further reduces the content of impurities mixed in the sand shots, so that the sand shots are recycled in the process of shot blasting, and the problem of impurities causing damage to the workpiece surface is reduced, thereby ensuring the treatment effect of the workpiece surface, being able to realize the automatic cleaning function of impurities, saving time and labor, and improving work efficiency.

To achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a steel pipe external shot blasting machine mainly includes a chassis, a shot blaster, an impurity collection box, a first mesh screening bucket, a sand and pill collecting trough, a lifting mechanism, a sand supply pipe, an impurity separation cylinder, a second mesh screening bucket, a first support frame, an arc-shaped material guide plate, a sand and pill diversion box, and a feed pipe. The left and right ends of the chassis are respectively provided with circular holes for the steel pipe to pass through, a first mesh screening bucket for screening impurities is provided at the bottom of the chassis, an arc-shaped material guide plate for guiding the sand and pills to both sides of the first mesh screening bucket is installed in the chassis, the arc-shaped material guide plate is located above the first mesh screening bucket, a sand and pill collecting trough is provided at the bottom of the first mesh screening bucket, and impurity collection boxes are respectively placed on both sides of the collecting trough The impurity collection box is located at the bottom of the chassis, the lifting mechanism is installed on the side of the chassis, the bottom end of the lifting mechanism is connected with the sand and shot collecting tank, the impurity separation cylinder is installed on the top of the chassis through the first support frame, and the discharge port at the top of the lifting mechanism is connected with the impurity separation cylinder. The bottom of the impurity separation cylinder is set as a conical structure, and a second mesh screening bucket with a conical structure is arranged inside. The bottom of the impurity separation cylinder is separated by the second mesh screening bucket to form an impurity collection chamber. A discharge pipe is provided at the bottom of the second mesh screening bucket. The bottom end of the discharge pipe passes through the bottom of the impurity separation cylinder, and a sand and shot diversion box is installed at the end. The shot blaster is installed on the top of the chassis, and the sand and shot diversion box is connected with the feed port of the shot blaster through the sand supply pipe respectively. The bottom end of the impurity collection chamber is connected with the dust removal equipment through a pipeline.

The lifting mechanism includes a motor, a chain transmission mechanism, a spiral blade, a lifting hopper, a protective shell, a driving shaft, a driven shaft, and a second support frame. The protective shell is installed on the side of the chassis, and the bottom of the protective shell is connected to the sand and pill collecting tank. The driving shaft is installed in the protective shell through a bearing and is located at the top of the protective shell. One end of the driven shaft is installed on the protective shell through a bearing, and the other end passes through the sand and pill collecting tank and is installed on the sand and pill collecting tank through a bearing. The driven shaft is provided with a spiral blade for conveying sand and pills, and the spiral blade is located in the sand and pill collecting tank. The driving shaft is connected to the driven shaft through a chain transmission mechanism, and a plurality of lifting hoppers are equidistantly arranged on the chain of the chain transmission mechanism. The motor is installed on the side of the protective shell through the second support frame, and the motor is connected to the driving shaft.

A dust outlet is provided on the top of the chassis, and the dust outlet is connected to the dust removal device through a pipeline, and the discharge port at the top of the protective shell is connected to the dust removal device through a pipeline.

The meshes on the first mesh screening bucket and the mesh screening bucket are both smaller than the diameter of the sand pills.

Beneficial effects of the utility model:

The utility model arranges a first mesh screening bucket at the bottom of the chassis to separate impurities mixed in the sand shots into an impurity collecting box, and the sand shots lifted by the lifting mechanism are secondary impurity removed through the impurity separation cylinder, thereby further reducing the content of impurities mixed in the sand shots. When the sand shots are recycled and used in the process of shot blasting, the problem of impurities causing damage to the workpiece surface is reduced, thereby ensuring the treatment effect of the workpiece surface, being able to realize the automatic cleaning function of impurities, saving time and effort, and improving work efficiency.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a three-dimensional schematic diagram 1 of the utility model.

FIG. 2 is a perspective schematic diagram 2 of the utility model.

FIG. 3 is a three-dimensional schematic diagram of the internal structure of the chassis.

FIG. 4 is a three-dimensional schematic diagram of the internal structure of the lifting mechanism.

FIG. 5 is a three-dimensional schematic diagram of the internal structure of the impurity separation cylinder.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and beneficial effects of the present invention clearer, the preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings to facilitate understanding by technicians.

The utility model discloses a steel pipe external shot blasting machine, which mainly comprises a machine case 1, a shot blaster 2, an impurity collecting box 3, a first mesh screening bucket 4, a sand and pill collecting trough 5, a lifting mechanism 6, a sand supply pipe 7, an impurity separation cylinder 8, a second mesh screening bucket 9, a first support frame 10, an arc-shaped material guide plate 11, a sand and pill diversion box 12, and a feed pipe 13. The left and right ends of the machine case 1 are respectively provided with circular holes for steel pipes to pass through, a first mesh screening bucket 4 for screening impurities is arranged at the bottom of the machine case 1, an arc-shaped material guide plate 11 for guiding sand and pills to both sides of the first mesh screening bucket 4 is installed in the machine case 1, the arc-shaped material guide plate 11 is located above the first mesh screening bucket 4, a sand and pill collecting trough 5 is arranged at the bottom of the first mesh screening bucket 4, and impurity collecting boxes 3 are respectively placed on both sides of the collecting trough 5, and the impurity collecting The box 3 is located at the bottom of the chassis 1, the lifting mechanism 6 is installed on the side of the chassis 1, the bottom end of the lifting mechanism 6 is connected to the sand and pill collecting tank 5, the impurity separation cylinder 8 is installed on the top of the chassis 1 through the first support frame 10, and the discharge port at the top of the lifting mechanism 6 is connected to the impurity separation cylinder 8. The bottom of the impurity separation cylinder 8 is set to a conical structure, and a second mesh screening bucket 9 with a conical structure is arranged inside. The bottom of the impurity separation cylinder 8 is separated by the second mesh screening bucket 9 to form an impurity collection chamber 801, and a discharge pipe 13 is provided at the bottom of the second mesh screening bucket 9. The bottom of the discharge pipe 13 passes through the bottom of the impurity separation cylinder 8, and a sand and pill diversion box 12 is installed at the end. The shot blasting machine 2 is installed on the top of the chassis 1, and the sand and pill diversion box 12 is connected to the feed port of the shot blasting machine 2 through the sand supply pipe 7 respectively, and the bottom of the impurity collection chamber 801 is connected to the dust removal equipment through a pipeline.

The lifting mechanism 6 is started to work, and the sand shots are ejected into the chassis 1 through the shot blaster 2. The sand shots collide with the surface of the steel pipe to achieve the rust removal function of the steel pipe. The sand shots fall into the first mesh screening bucket 4 along both sides of the arc-shaped guide plate 11. During the rolling process of the sand shots, rust and other impurities fall into the impurity collection box 3 through the mesh holes on the first mesh screening bucket 4 for collection, and the sand shots enter the collection tank 5 for recycling. The sand shots are lifted into the impurity separation cylinder 8 by the lifting mechanism 6, and the sand shots are screened and removed by the second mesh screening bucket 9 for secondary screening. The impurities fall into the impurity collection box 3 through the mesh holes of the second mesh screening bucket 9. In the impurity collection chamber 801, the impurities in the impurity collection chamber 801 are extracted by the negative pressure of the dust removal equipment for treatment, which further reduces the impurity content mixed in the sand shots, so that when the sand shots are recycled for shot blasting, the problem of impurities causing damage to the workpiece surface is reduced, thereby ensuring the treatment effect of the workpiece surface, and realizing the automatic cleaning function of impurities, saving time and effort, and improving work efficiency. The sand shots after impurities are removed fall into the sand shot diversion box 12 along the discharge pipe 13, and flow into the shot blasting machine 2 through the sand supply pipe 7 for cyclic shot blasting, thereby realizing the recycling function of the sand shots.

The lifting mechanism 6 includes a motor 601, a chain transmission mechanism 602, a spiral blade 603, a lifting hopper 604, a protective shell 605, a driving shaft 606, a driven shaft 607, and a second support frame 608. The protective shell 605 is installed on the side of the chassis 1, and the bottom of the protective shell 605 is connected to the sand and pill collecting tank 5. The driving shaft 606 is installed in the protective shell 605 through a bearing and is located at the top of the protective shell 605. One end of the driven shaft 607 is installed on the protective shell 605 through a bearing, and the other end passes through the sand and pill collecting tank 5 and is installed on the sand and pill collecting tank 5 through a bearing. The driven shaft 607 is provided with a spiral blade 603 for conveying sand and pills. The spiral blade 603 is located in the sand and pill collecting tank 5. The driving shaft 606 is installed in the protective shell 605 through the chain transmission mechanism 602. It is connected to the driven shaft 607 in transmission, and multiple lifting hoppers 604 are equidistantly arranged on the chain of the chain transmission mechanism 602. The motor 601 is installed on the side of the protective shell 605 through the second support frame 608, and the motor 601 is connected to the driving shaft in transmission. When working, the motor 601 is started, and the motor 601 drives the driving shaft 606 to rotate. The driving shaft 606 drives the driven shaft 607 to rotate through the chain transmission mechanism 602. The lifting hopper 604 moves synchronously with the chain of the chain transmission mechanism 602, and the sand and pills in the sand and pill collecting tank 5 are transported to the bottom of the protective shell 605 through the spiral blades 603 on the driven shaft 607, which is convenient for the lifting hopper 604 to load the materials, thereby realizing the automatic loading function of the sand and pills, reducing the labor intensity of the workers and improving the work efficiency.

A dust exhaust port 101 is provided on the top of the chassis 1, and the dust exhaust port 101 is connected to the dust removal equipment through a pipe. The discharge port at the top of the protective shell 605 is connected to the dust removal equipment through a pipe. The dust removal equipment performs negative pressure suction on the dust generated by rust removal inside the chassis 1 and the dust mixed in the sand shots, which effectively reduces the flying dust and ensures the working environment of the workshop.

The meshes on the first mesh screening bucket 4 and the second mesh screening bucket 9 are both smaller than the diameter of the sand pills.

Working process:

During operation, the motor 601 is started, and the motor 601 drives the driving shaft 606 to rotate. The driving shaft 606 drives the driven shaft 607 to rotate through the chain transmission mechanism 602, and the lifting hopper 604 moves synchronously with the chain of the chain transmission mechanism 602. The spiral blades 603 on the driven shaft 607 transport the sand and pills in the sand and pill collecting tank 5 to the bottom of the protective shell 605, which is convenient for the lifting hopper 604 to load the material, thereby realizing the automatic loading function of the sand and pills, reducing the labor intensity of the workers and improving the work efficiency; the sand and pills are sprayed into the inside of the chassis 1 through the shot blaster 2, and the sand and pills collide with the surface of the steel pipe to realize the rust removal function of the steel pipe. The sand and pills fall into the first mesh screening bucket 4 along both sides of the arc-shaped guide plate 11. During the rolling process of the sand and pills, impurities such as rust fall into the impurity collection box 3 through the mesh on the first mesh screening bucket 4. The sand pills are collected and then enter the collecting tank 5 for recycling. The sand pills are lifted into the impurity separation cylinder 8 by the lifting hopper 604, and are screened and impurity-removed for the second time by the second mesh screening bucket 9. The impurities fall into the impurity collection chamber 801 through the mesh holes of the second mesh screening bucket 9. The impurities in the impurity collection chamber 801 are extracted by the negative pressure of the dust removal equipment for treatment, which further reduces the impurity content mixed in the sand pills. In the process of recycling the sand pills for shot blasting, the problem of damage to the workpiece surface caused by impurities is reduced, thereby ensuring the treatment effect of the workpiece surface, realizing the automatic cleaning function of impurities, saving time and effort, and improving work efficiency. The sand pills after impurity removal fall into the sand pill diversion box 12 along the discharge pipe 13, and flow into the shot blasting machine 2 through the sand supply pipe 7 for cyclic shot blasting, thereby realizing the recycling function of the sand pills.

Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made in form and details without departing from the scope defined by the claims of the utility model.

Claims (4)

1. A steel pipe external shot blasting machine, characterized in that: the steel pipe external shot blasting machine comprises a chassis (1), a shot blaster (2), an impurity collection box (3), a first mesh screening bucket (4), a sand and pill collecting tank (5), a lifting mechanism (6), a sand supply pipe (7), an impurity separation cylinder (8), a second mesh screening bucket (9), a first support frame (10), an arc-shaped guide plate (11), a sand and pill diversion box (12), and a feed pipe (13), wherein the chassis (1) has two ends at the left and right ends. A circular hole for passing a steel pipe is respectively provided, a first mesh screening bucket (4) for screening impurities is provided at the bottom of the chassis (1), an arc-shaped guide plate (11) for guiding sand and pills to both sides of the first mesh screening bucket (4) is installed in the chassis (1), the arc-shaped guide plate (11) is located above the first mesh screening bucket (4), a sand and pill collecting trough (5) is provided at the bottom of the first mesh screening bucket (4), impurity collecting boxes (3) are respectively placed on both sides of the collecting trough (5), and the impurity collecting boxes (3) are located at the bottom of the chassis (1), a lifting mechanism (6) is installed on the side of the chassis (1), and the bottom end of the lifting mechanism (6) is connected to the sand and pill collecting trough (5), an impurity separation cylinder (8) is installed on the top of the chassis (1) through a first support frame (10), and the discharge port at the top end of the lifting mechanism (6) is connected to the impurity separation cylinder (8), the bottom of the impurity separation cylinder (8) is set as a conical structure, and a second mesh screening bucket (9) with a conical structure is arranged inside, and the bottom of the impurity separation cylinder (8) is connected to the impurity separation cylinder (8) through The second mesh screening bucket (9) is separated to form an impurity collection chamber (801). A feed pipe (13) is provided at the bottom of the second mesh screening bucket (9). The bottom end of the feed pipe (13) passes through the bottom of the impurity separation cylinder (8), and a sand and shot diversion box (12) is installed at the end. The shot blasting machine (2) is installed on the top of the chassis (1). The sand and shot diversion box (12) is connected to the feed port of the shot blasting machine (2) through the sand supply pipe (7). The bottom of the impurity collection chamber (801) is connected to the dust removal equipment through a pipeline. 2. A steel pipe external shot blasting machine as claimed in claim 1, characterized in that: the lifting mechanism (6) comprises a motor (601), a chain transmission mechanism (602), a spiral blade (603), a lifting hopper (604), a protective shell (605), a driving shaft (606), a driven shaft (607), and a second support frame (608), wherein the protective shell (605) is installed on the side of the chassis (1), the bottom of the protective shell (605) is connected to the sand and shot collecting tank (5), the driving shaft (606) is installed in the protective shell (605) through a bearing, and is located at the top of the protective shell (605), and one end of the driven shaft (607) is connected to the protective shell (605). The bearing is mounted on the protective shell (605), and the other end thereof penetrates the sand and pill collecting trough (5) and is mounted on the sand and pill collecting trough (5) through the bearing. A spiral blade (603) for conveying sand and pills is provided on the driven shaft (607), and the spiral blade (603) is located in the sand and pill collecting trough (5). The driving shaft (606) is connected to the driven shaft (607) through a chain transmission mechanism (602), and a plurality of lifting hoppers (604) are equidistantly arranged on the chain of the chain transmission mechanism (602). The motor (601) is mounted on the side of the protective shell (605) through a second support frame (608), and the motor (601) is connected to the driving shaft through transmission. 3. A steel pipe external shot blasting machine as described in claim 1 or 2, characterized in that: a dust exhaust port (101) is provided on the top of the chassis (1), the dust exhaust port (101) is connected to the dust removal equipment through a pipeline, and the discharge port at the top of the protective shell (605) is connected to the dust removal equipment through a pipeline. 4. A steel pipe external shot blasting machine as claimed in claim 3, characterized in that the mesh holes on the first mesh screening bucket (4) and the second mesh screening bucket (9) are both smaller than the diameter of the sand shot.