CN212420820U

CN212420820U - Grinding machine

Info

Publication number: CN212420820U
Application number: CN202020233783.9U
Authority: CN
Inventors: 崔翠; 杨庆亮; 周玉磊; 谢广禄
Original assignee: Petrochina Co Ltd
Current assignee: Petrochina Co Ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2021-01-29
Anticipated expiration: 2030-02-28

Abstract

The application discloses polisher belongs to rust cleaning technical field. This polisher includes: power unit, drive flexible axle, head of polishing, fixed subassembly and supporting component. The power mechanism is connected with the first end of the driving flexible shaft, the second end of the driving flexible shaft penetrates through the fixing assembly and is fixedly connected with the fixing assembly, the second end of the driving flexible shaft is further connected with the polishing head, and the power mechanism can drive the polishing head to rotate through the driving flexible shaft. The first end of the supporting component is fixedly connected with the power mechanism, the second end of the supporting component is rotatably connected with the fixing component, and the length of the supporting component can be adjusted to adjust the radian of the driving flexible shaft. This application passes through power unit and drives the rotation of head of polishing to it gets rid of to adnexed cinder and iron rust on the oil gas pipeline. Through the adjustment of the length of the supporting component, the radian of the driving flexible shaft is adjusted, the direction of the polishing head is adjusted, and polishing of the back of the oil-gas pipeline is achieved.

Description

Grinding machine

Technical Field

The application relates to the technical field of rust removal, in particular to a grinding machine.

Background

In the process of oil and gas pipeline construction, often need get rid of the attached oxide skin of surface of oil and gas pipeline and iron rust etc. to increase the adhesive force of the paint of paining at oil and gas pipeline surface, thereby increase oil and gas pipeline's life. In the related art, when removing oxide skin and iron rust, the polishing head is mounted on an output shaft of an electric grinder so as to be driven to rotate by the output shaft of the electric grinder, so that the surface of the oil-gas pipeline is subjected to rust removal. However, since the output shaft of the electric grinder is a rigid shaft, the back surface of the oil and gas pipe cannot be ground.

SUMMERY OF THE UTILITY MODEL

The application provides a polisher can solve the problem of polishing the back of an oil and gas pipeline. The technical scheme is as follows:

a grinding machine comprises a power mechanism, a driving flexible shaft, a grinding head, a fixing assembly and a supporting assembly;

the power mechanism is connected with the first end of the driving flexible shaft, the second end of the driving flexible shaft penetrates through the fixing assembly and is fixedly connected with the fixing assembly, the second end of the driving flexible shaft is also connected with the polishing head, and the power mechanism can drive the polishing head to rotate through the driving flexible shaft;

the first end of the supporting component is fixedly connected with the power mechanism, the second end of the supporting component is rotatably connected with the fixing component, and the length of the supporting component can be adjusted so as to adjust the radian of the driving flexible shaft.

In one possible implementation, the support assembly includes: the support body, the adjusting rod and the adjusting knob;

one end of the supporting body is fixedly connected with the power mechanism, and the first end of the adjusting rod is rotatably connected with the fixing assembly;

the second end of adjusting the pole is provided with the spout along length direction, adjust knob passes the spout, and can slide in the spout, adjust knob is used for fixed connection the supporter with adjust the pole.

Optionally, a first branch and a second branch are arranged at the first end of the adjusting rod;

the first branch and the second branch are both rotatably connected with the fixed component, and the rotating shaft of the first branch and the rotating shaft of the second branch are coincident.

Optionally, the adjusting rod comprises an adjusting sheet and a connecting rod;

the adjusting sheet is provided with the sliding groove which is arc-shaped, and the adjusting knob is used for fixedly connecting the adjusting sheet and the supporting body through the sliding groove;

one end of the adjusting sheet is fixedly connected with the first end of the connecting rod, and the second end of the connecting rod is rotatably connected with the fixing component.

Optionally, the adjustment tab and the connecting rod are of an integral design.

Optionally, the support assembly comprises: a support rod and a telescopic rod;

the first end of the supporting rod is fixedly connected with the power mechanism, the second end of the supporting rod is fixedly connected with the first end of the telescopic rod, the second end of the telescopic rod is rotatably connected with the fixing component, and the telescopic rod is used for limiting the distance between the fixing component and the second end of the supporting rod.

Optionally, the telescopic rod is in a circular arc structure.

Optionally, the fixed assembly comprises a bearing and a bearing seat;

the second end of the driving flexible shaft penetrates through the inner ring of the bearing and is fixedly connected with the inner ring of the bearing, the outer ring of the bearing is fixedly connected with the bearing seat, and the bearing seat is rotatably connected with the second end of the supporting component.

Optionally, the polisher further comprises a flexible shaft protection pipe, the flexible shaft protection pipe is sleeved on the driving flexible shaft, the first end of the flexible shaft protection pipe is fixedly connected with the power mechanism, and the second end of the flexible shaft protection pipe is fixedly connected with the fixing assembly.

Optionally, the power mechanism includes a housing and a driving motor;

the driving motor is arranged in the casing, the first end of the supporting component is fixedly connected with the casing, and the first end of the driving flexible shaft penetrates through the casing and is fixedly connected with an output shaft of the driving motor.

The technical scheme provided by the application has the beneficial effects that:

the first end of the driving flexible shaft is connected with the power mechanism, and the second end of the driving flexible shaft is connected with the polishing head so as to drive the polishing head to rotate through the power mechanism, and then the oxide skin and the iron rust attached to the oil-gas pipeline are removed. The fixing assembly is fixedly connected with the second end of the driving flexible shaft, and two ends of the supporting assembly are respectively connected with the power mechanism and the fixing assembly so as to support the fixing assembly through the supporting assembly and further support the second end of the driving flexible shaft. Because supporting component's length can be adjusted, consequently when polishing the back or long and narrow space of oil gas pipeline, can adjust self length through supporting component to adjust the radian of drive flexible axle, thereby the direction of adjustment head, and then realize polishing the back of oil gas pipeline.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a front view structural schematic diagram of a grinding machine provided in an embodiment of the present application;

FIG. 2 is a schematic front view of another sander provided in an embodiment of the present application;

FIG. 3 is a schematic front view of a sander according to an embodiment of the present application;

fig. 4 is a schematic top-view structural diagram of a grinding machine provided in an embodiment of the present application.

Reference numerals:

1: a power mechanism; 2: driving a flexible shaft; 3: polishing head; 4: a fixing assembly; 5: a support assembly; 6: a flexible shaft protection pipe;

11: a housing; 12: a drive motor; 51: a support body; 52: adjusting a rod; 53: adjusting a knob; 54: a support bar; 55: a telescopic rod;

521: a first branch; 522: a second branch; 523: a regulating sheet; 524: a connecting rod.

Detailed Description

To make the objects, technical solutions and advantages of the present application more clear, embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

Fig. 1 illustrates a front view structure diagram of a grinding machine according to an embodiment of the present application. As shown in the attached drawing 1, the sander comprises a power mechanism 1, a driving flexible shaft 2, a sanding head 3, a fixing assembly 4 and a supporting assembly 5. The power mechanism 1 is connected with the first end of the driving flexible shaft 2, the second end of the driving flexible shaft 2 penetrates through the fixing component 4 and is fixedly connected with the fixing component 4, the second end of the driving flexible shaft 2 is further connected with the polishing head 3, and the power mechanism 1 can drive the polishing head 3 to rotate through the driving flexible shaft 2. The first end of the supporting component 5 is fixedly connected with the power mechanism 1, the second end of the supporting component 5 is rotatably connected with the fixing component 4, and the length of the supporting component 5 can be adjusted to adjust the radian of the driving flexible shaft 2.

In this application embodiment, the first end that will drive flexible axle 2 is connected with power unit 1, and the second end is connected with the head of polishing 3 to drive the head of polishing 3 through power unit 1 and rotate, and then get rid of adnexed cinder and iron rust on the oil gas pipeline. The second end fixed connection with fixed subassembly 4 and drive flexible axle 2, the both ends of supporting component 5 are connected with power unit 1 and fixed subassembly 4 respectively to support fixed subassembly 4 through supporting component 5, and then support the second end of drive flexible axle 2. Because the length of supporting component 5 can be adjusted, consequently when polishing the back or long and narrow space of oil gas pipeline, can adjust self length through supporting component 5 to adjust the radian of driving flexible axle 2, thereby the direction of adjustment head 3, and then realize polishing the back of oil gas pipeline.

Wherein, the polishing head 3 can be a combined steel wire brush so as to adjust the diameter of the polishing head 3, and further improve the application range of the polishing head 3. Of course, the polishing head 3 may also be a common wire brush or the like as long as it can polish the oxide skin or iron rust of the oil and gas pipeline, and this is not limited in the embodiment of the present application.

The rotatable connection between the second end of the supporting component 5 and the fixing component 4 may be a hinge, and of course, other connection manners may also be adopted, such as a shaft pin connection, which is not limited in the embodiment of the present application.

In some embodiments, as shown in fig. 2, the power mechanism 1 may include a housing 11 and a driving motor (12), the driving motor (12) is disposed in the housing 11, the first end of the supporting component 5 is fixedly connected to the housing 11, and the first end of the driving flexible shaft 2 penetrates through the housing 11 and is fixedly connected to the output shaft of the driving motor (12).

Thus, the driving motor (12) can be disposed inside the cabinet 11 to protect the driving motor (12) through the cabinet 11. The first end of the supporting component 5 can be fixedly connected with the machine shell 11, so that the first end of the power mechanism 1 and the first end of the supporting component 5 are connected, the first end of the supporting component 5 is not required to be directly connected with the driving motor (12), and the attractiveness of the power mechanism 1 is improved while the driving motor (12) is replaced conveniently.

Wherein, driving motor (12) can be the buncher, like this, can be convenient for control the rotational speed of drive flexible axle 2, and then can be convenient for control the rotational speed of head of polishing 3 to the application scope of polisher has been promoted. Of course, the driving motor (12) may be a speed-adjustable motor, and may also be another type of motor, such as a three-phase motor, and the like, which is not limited in this embodiment of the present application.

As shown in fig. 2, the casing 11 may have a cylindrical shape, or may have other shapes as long as it can be connected to the first end of the supporting component 5 conveniently, which is not limited in the embodiment of the present application. In addition, one or more handles may be provided on the housing 11 to facilitate use by an operator.

It should be noted that the power mechanism 1 may include a storage battery, a plug, a lead, and the like in addition to the housing 11 and the driving motor, so as to be convenient for providing electric power for the driving motor, and of course, the power mechanism 1 may also include other structures, which is not limited in this embodiment of the present application.

In some embodiments, the fixing assembly 4 may include a bearing and a bearing seat, the second end of the driving flexible shaft 2 passes through an inner ring of the bearing and is fixedly connected with the inner ring of the bearing, an outer ring of the bearing is fixedly connected with the bearing seat, and the bearing seat is rotatably connected with the second end of the support assembly 5.

Like this, can fix the second end of drive flexible axle 2 through bearing and bearing frame to prevent the swing that takes place at power unit 1 drive flexible axle 2 when rotatory, the second end of drive flexible axle 2. The second end of the driving flexible shaft 2 is fixedly connected with the inner ring of the bearing, so that the inner ring of the bearing can rotate synchronously with the driving flexible shaft 2 while the second end of the driving flexible shaft 2 is fixed, and the polishing head 3 can be ensured to rotate synchronously with the second end of the driving flexible shaft 2.

In some embodiments, as shown in fig. 2, the grinding machine may further include a flexible shaft protection tube 6, the flexible shaft protection tube 6 is sleeved on the driving flexible shaft 2, a first end of the flexible shaft protection tube 6 is fixedly connected to the power mechanism 1, and a second end of the flexible shaft protection tube 6 is fixedly connected to the fixing assembly 4.

Like this, can overlap flexible axle protection pipe 6 on drive flexible axle 2 to prevent drive flexible axle 2 and external environment contact, thereby can avoid the corruption of external environment to drive flexible axle 2. In addition, when the power mechanism 1 drives the driving flexible shaft 2 to rotate, the phenomenon that an operator is injured due to the fact that the operator touches the driving flexible shaft 2 by mistake can be avoided, and then the protection of the operator is achieved.

Wherein, the material of flexible axle protection tube 6 can be the rubber material, of course, also can be other materials, for example plastics material or compound material etc. as long as can realize flexible axle protection tube 6's free bending can, this application embodiment does not limit to this.

In some embodiments, as shown in fig. 3, the support assembly 5 may include: a support rod 54 and a telescoping rod 55. The first end of the supporting rod 54 is fixedly connected with the power mechanism 1, the second end of the supporting rod 54 is fixedly connected with the first end of the telescopic rod 55, the second end of the telescopic rod 55 is rotatably connected with the fixing component 4, and the telescopic rod 55 is used for limiting the distance between the fixing component 4 and the second end of the supporting rod 54.

Like this, can be through the both ends of bracing piece 54 respectively with being connected of power unit 1 and telescopic link 55 to and the both ends of telescopic link 55 respectively with bracing piece 54 with fixed subassembly 4 be connected, in order to support fixed subassembly 4, and then realize the support to the second end of drive flexible axle 2. Because the length of self of telescopic link 55 can be adjusted, therefore telescopic link 55 can also change the distance between the second end of bracing piece 54 and the fixed subassembly 4 when supporting fixed subassembly 4, and then can adjust the radian of drive flexible axle 2.

Wherein the support bar 54 may be a hollow bar, which may reduce the weight of the sander to facilitate the comfort of an operator holding the sander for work. The support rod 54 may be a straight rod, and certainly, may also be a rod with a certain radian, as long as the support to the fixing component 4 can be realized, and the extension and retraction of the telescopic rod 55 are not affected, which is not limited in the embodiment of the present application.

Wherein, telescopic link 55 can be convex structure, like this, can be when adjusting the radian of drive flexible axle 2 for each part atress on the drive flexible axle 2 is even, with the life who improves drive flexible axle 2. Of course, the telescopic rod 55 may also be a straight rod as long as the radian of the driving flexible shaft 2 can be adjusted, and this embodiment of the present application is not limited thereto.

Wherein, telescopic link 55 can include first sub-pole, the sub-pole of second and stop screw, the first end of first sub-pole and the second end fixed connection of bracing piece 54, the first end and the fixed subassembly 4 fixed connection of the sub-pole of second, the second end of first sub-pole can stretch into the second end of the sub-pole of second, stop screw can stretch into the length of the sub-pole of second to first sub-pole and carry on spacingly.

Like this, can stretch into the length of the sub-stalk of second through stop screw to first sub-pole and carry on spacingly to the distance between the first end of the first sub-pole of adjustment and the first end of the sub-stalk of second, and then can adjust the distance between the second end of bracing piece 54 and fixed subassembly 4, thereby realize adjusting the radian of drive flexible axle 2.

It should be noted that, the telescopic rod 55 may have other structures besides the above structure, as long as the length thereof can be changed, and this embodiment of the present application is not limited thereto.

In other embodiments, as shown in fig. 2, the support assembly 5 may include: a support body 51, an adjustment lever 52 and an adjustment knob 53. One end of the supporting body 51 is fixedly connected with the power mechanism 1, and the first end of the adjusting rod 52 is rotatably connected with the fixing component 4. The second end of the adjusting rod 52 is provided with a sliding slot along the length direction, the adjusting knob 53 passes through the sliding slot and can slide in the sliding slot, and the adjusting knob 53 is used for fixedly connecting the supporting body 51 and the adjusting rod 52.

In this way, the support body 51 and the adjustment lever 52 can be fixed by the adjustment knob 53, and the fixing unit 4 can be supported by the support body 51 and the adjustment lever 52. When the radian of the driving flexible shaft 2 is adjusted, the position of the adjusting knob 53 in the sliding groove can be changed, so that the distance between the first end of the adjusting rod 52 and the supporting body 51 can be changed, the distance between the supporting body 51 and the fixed component 4 can be changed, and the radian of the driving flexible shaft 2 can be adjusted.

As shown in fig. 4, the first end of the adjustment lever 52 may be provided with a first branch 521 and a second branch 522. The first and

second branches

521, 522 are each rotatably connected to the fixed assembly 4, and the rotation axes of the first and

second branches

521, 522 coincide.

In this way, the fixing assembly 4 can be supported by the first branch 521 and the second branch 522 simultaneously, so as to improve the stability of the fixing assembly 4, and further improve the stability of the second end of the driving flexible shaft 2 and the polishing head 3. Because the rotating shaft of the first branch 521 coincides with the rotating shaft of the second branch 522, when the radian of the driving flexible shaft 2 is adjusted by the adjusting rod 52, the first branch 521 and the second branch 522 can synchronously rotate relative to the fixed component 4, so that the support stability of the fixed component 4 is improved, and the adjustment of the radian of the driving flexible shaft 2 is not influenced.

It should be noted that the first branch 521 and the second branch 522 may be symmetrically distributed to improve the aesthetic property of the first branch 521 and the second branch 522, and of course, the first branch 521 and the second branch 522 may also be distributed according to other structures, which is not limited in this embodiment of the application. In addition, a reinforcing rib plate can be arranged between the first branch 521 and the second branch 522, so that the strength between the first branch 521 and the second branch 522 can be improved, and the influence on the service life of the adjusting rod 52 caused by the crack between the first branch 521 and the second branch 522 can be avoided.

As shown in fig. 4, the adjusting rod 52 may include an adjusting plate 523 and a connecting rod 524, the adjusting plate 523 may be provided with a sliding slot, the sliding slot may be arc-shaped, and the adjusting knob 53 may be used to penetrate through the sliding slot to fixedly connect the adjusting plate 523 and the supporting body 51. One end of the adjusting plate 523 is fixedly connected to the first end of the connecting rod 524, and the second end of the connecting rod 524 is rotatably connected to the fixing component 4.

Like this, can be through changing the position in the arc spout that adjust knob 53 set up on adjustment sheet 523 to change the distance between supporter 51 and the connecting rod 524, and then can change the distance between supporter 51 and the fixed subassembly 4, thereby realize the regulation to the radian of drive flexible axle 2.

It should be noted that, the number of the adjusting pieces 523 may be two, one end of each of the two adjusting pieces 523 may be respectively fixed to two sides of the first end of the connecting rod 524, and correspondingly, the number of the adjusting knobs 53 may also be two, so that the two adjusting knobs 53 penetrate through the sliding grooves to fix the adjusting pieces 523 and the supporting body 51, and the stability of the fixation between the adjusting pieces 523 and the supporting body 51 may be improved. Of course, the number of the adjusting pieces 523 may also be other numbers, which is not limited in the embodiment of the present application.

In addition, the adjusting piece 523 and the connecting rod 524 can be integrally designed, so that the phenomenon that cracks appear between the adjusting piece 523 and the connecting rod 524 due to stress concentration after the adjusting piece 523 and the connecting rod 524 are fixedly connected in modes of welding and the like can be avoided, and the service lives of the adjusting piece 523 and the connecting rod 524 can be prolonged.

It should be further noted that, besides the support assemblies 5 with the two structures described above, the radian of the driving flexible shaft 2 can be adjusted, and the radian of the driving flexible shaft 2 can also be adjusted by other structures, which is not limited in the embodiment of the present application.

In this application embodiment, the first end and the power unit with the drive flexible axle are connected, and the second end is connected with the head of polishing to drive the head of polishing through power unit and rotate, and then get rid of adnexed cinder and iron rust on to the oil gas pipeline. The fixing assembly is fixedly connected with the second end of the driving flexible shaft, and two ends of the supporting assembly are respectively connected with the power mechanism and the fixing assembly so as to support the fixing assembly through the supporting assembly and further support the second end of the driving flexible shaft. Because supporting component's length can be adjusted, consequently when polishing the back or long and narrow space of oil gas pipeline, can adjust self length through supporting component to adjust the radian of drive flexible axle, thereby the direction of adjustment head, and then realize polishing the back of oil gas pipeline. In addition, the outer side of the driving flexible shaft is also provided with a flexible shaft protection pipe to isolate the driving flexible shaft from the external environment, so that the driving flexible shaft can be prevented from being corroded, and the service life of the driving flexible shaft can be prolonged.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A grinding machine is characterized by comprising a power mechanism (1), a driving flexible shaft (2), a grinding head (3), a fixing assembly (4) and a supporting assembly (5);

the power mechanism (1) is connected with the first end of the driving flexible shaft (2), the second end of the driving flexible shaft (2) penetrates through the fixing assembly (4) and is fixedly connected with the fixing assembly (4), the second end of the driving flexible shaft (2) is also connected with the polishing head (3), and the power mechanism (1) can drive the polishing head (3) to rotate through the driving flexible shaft (2);

the first end of the supporting component (5) is fixedly connected with the power mechanism (1), the second end of the supporting component (5) is rotatably connected with the fixing component (4), and the length of the supporting component (5) can be adjusted to adjust the radian of the driving flexible shaft (2).

2. A sanding machine according to claim 1, characterized in that said support assembly (5) comprises: a support body (51), an adjusting rod (52) and an adjusting knob (53);

one end of the support body (51) is fixedly connected with the power mechanism (1), and the first end of the adjusting rod (52) is rotatably connected with the fixed component (4);

the second end of the adjusting rod (52) is provided with a sliding groove along the length direction, the adjusting knob (53) penetrates through the sliding groove and can slide in the sliding groove, and the adjusting knob (53) is used for fixedly connecting the support body (51) and the adjusting rod (52).

3. A sanding machine according to claim 2, characterized in that the first end of the adjustment lever (52) is provided with a first branch (521) and a second branch (522);

the first branch (521) and the second branch (522) are both rotatably connected with the fixed assembly (4), and the rotation axis of the first branch (521) and the rotation axis of the second branch (522) coincide.

4. A sanding machine according to claim 2, characterized in that the adjustment lever (52) comprises an adjustment flap (523) and a connecting rod (524);

the adjusting sheet (523) is provided with the sliding groove which is arc-shaped, and the adjusting knob (53) is used for fixedly connecting the adjusting sheet (523) and the support body (51) through the sliding groove;

one end of the adjusting sheet (523) is fixedly connected with the first end of the connecting rod (524), and the second end of the connecting rod (524) is rotatably connected with the fixing component (4).

5. A sanding machine according to claim 4, characterized in that the adjustment blade (523) and the connecting rod (524) are of one-piece design.

6. A sanding machine according to claim 1, characterized in that said support assembly (5) comprises: a support rod (54) and a telescopic rod (55);

the first end of the supporting rod (54) is fixedly connected with the power mechanism (1), the second end of the supporting rod (54) is fixedly connected with the first end of the telescopic rod (55), the second end of the telescopic rod (55) is rotatably connected with the fixed component (4), and the telescopic rod (55) is used for limiting the distance between the fixed component (4) and the second end of the supporting rod (54).

7. A sander according to claim 6, characterized in that the telescoping rod (55) is of circular arc configuration.

8. A sanding machine according to claim 1, characterized in that the stationary assembly (4) comprises a bearing and a bearing block;

the second end of the driving flexible shaft (2) penetrates through the inner ring of the bearing and is fixedly connected with the inner ring of the bearing, the outer ring of the bearing is fixedly connected with the bearing seat, and the bearing seat is rotatably connected with the second end of the supporting component (5).

9. The sander according to claim 1, further comprising a flexible shaft protection tube (6), wherein the flexible shaft protection tube (6) is sleeved on the driving flexible shaft (2), a first end of the flexible shaft protection tube (6) is fixedly connected with the power mechanism (1), and a second end of the flexible shaft protection tube (6) is fixedly connected with the fixing assembly (4).

10. A sanding machine according to claim 1, characterized in that the power mechanism (1) comprises a housing (11) and a drive motor (12);

the driving motor is arranged in the casing (11), the first end of the supporting component (5) is fixedly connected with the casing (11), and the first end of the driving flexible shaft (2) penetrates through the casing (11) and is fixedly connected with an output shaft of the driving motor (12).