CN111570657A

CN111570657A - Tube expander base structure and have its tube expander

Info

Publication number: CN111570657A
Application number: CN202010450406.5A
Authority: CN
Inventors: 张玉全; 胡康; 鲁鹏; 张秀峰
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Intelligent Equipment Wuhan Co ltd; Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2020-05-25
Filing date: 2020-05-25
Publication date: 2020-08-25
Anticipated expiration: 2040-05-25
Also published as: CN111570657B

Abstract

The invention provides a pipe expander base structure and a pipe expander with the same, wherein the pipe expander base structure comprises: a base body; the rotary connecting structure comprises an inner ring and an outer ring which can rotate relatively, the outer ring is sleeved on the inner ring, and the outer peripheral surface of the outer ring is provided with gear teeth; the inner ring is connected with the base body, and the outer ring is used for being connected with the pipe expander body; and the rotary driving device is arranged on the base body and comprises a driving gear, and the driving gear is meshed with the gear teeth to drive the outer ring to drive the pipe expander body to rotate. The base structure of the pipe expander solves the problem that the base structure of the pipe expander in the related art is poor in use reliability.

Description

Tube expander base structure and have its tube expander

Technical Field

The invention relates to the field of pipe expanding equipment, in particular to a base structure of a pipe expander and the pipe expander with the base structure.

Background

At present, a tube expander is widely used for tube expanding operation in the machining process of a heat exchanger.

The electric tube expander among the correlation technique includes electric tube expander base structure and installs the electric tube expander body that is used for carrying out the expand tube operation on it, its electric tube expander base structure is internal tooth drive structure, as shown in figure 4, it includes base body 1 and the rotation connection structure 2 of installing on it, rotation connection structure 2 has inner ring 21 and outer loop 22 that can relative rotation, the medial surface of inner ring 21 is equipped with the internal tooth, thereby drive inner ring 21 is rotatory for outer loop 22 with the internal tooth cooperation through drive gear 31 on the rotary driving device 3, and then the drive electric tube expander body is rotatory for base body 1 relatively.

When the pipe expander is actually used, the applicant finds that the pipe expander adopting the pipe expander base structure is easy to have the problems of unstable rotation, even clamping stagnation or damage after being used for a long time, so that the use reliability of the pipe expander base structure is poor.

Disclosure of Invention

The invention mainly aims to provide a base structure of a pipe expander and the pipe expander with the base structure, and aims to solve the problem that the base structure of the pipe expander in the related art is poor in use reliability.

To achieve the above object, according to one aspect of the present invention, there is provided a base structure of a pipe expander, comprising: a base body; the rotary connecting structure comprises an inner ring and an outer ring which can rotate relatively, the outer ring is sleeved on the inner ring, and the outer peripheral surface of the outer ring is provided with gear teeth; the inner ring is connected with the base body, and the outer ring is used for being connected with the pipe expander body; and the rotary driving device is arranged on the base body and comprises a driving gear, and the driving gear is meshed with the gear teeth to drive the outer ring to drive the pipe expander body to rotate.

Further, the rotation driving device includes: the driving motor is fixedly arranged on the base body; the driving gear is connected with an output shaft of the driving motor; the driving gear is arranged on the movable seat, the position of the movable seat is adjustably arranged on the base body, and the driving gear is meshed with the driving gear.

Further, the base structure of the pipe expander comprises a shield arranged along a circumferential extension of the swivel connection structure to shield at least part of the swivel connection structure.

Further, the base body includes: the mounting plate, the rotary connecting structure and the rotary driving device are mounted on the mounting plate; the supporting frame is arranged below the mounting plate and provided with a plurality of cross beams arranged along the horizontal direction and a plurality of longitudinal beams arranged along the horizontal direction, each cross beam and each longitudinal beam are arranged in a cross mode, and each cross beam and each longitudinal beam are connected with the mounting plate to support the mounting plate.

Furthermore, an annular groove is formed in the mounting plate, a first connecting hole is formed in the bottom of the annular groove, a second connecting hole is formed in the inner ring, the inner ring is clamped in the annular groove, and the inner ring is connected with the mounting plate through a first fastener penetrating through the first connecting hole and the second connecting hole.

Further, the base body comprises a bottom plate, the bottom plate is arranged below the supporting frame, and the bottom plate is connected with the supporting frame.

Further, the support frame includes a plurality of backup pads that extend the setting along the horizontal direction, and a plurality of backup pads all are connected with mounting panel and bottom plate.

Further, the base body comprises a plurality of leveling gaskets, and the leveling gaskets are arranged below the bottom plate at intervals so as to support the bottom plate through the leveling gaskets.

Furthermore, the rotary connecting structure is a slewing bearing, the inner ring is an inner ring of the slewing bearing, the outer ring is an outer ring of the slewing bearing, a rolling body is arranged between the inner ring and the outer ring, and the rolling body is in rolling fit with the outer ring and the inner ring.

According to another aspect of the present invention, there is provided a pipe expander, comprising a pipe expander base structure and a pipe expander body, the pipe expander body being rotatably mounted on the pipe expander base structure, wherein the pipe expander base structure is the pipe expander base structure described above.

The base structure of the pipe expander applying the technical scheme of the invention comprises a base body; the rotary connecting structure comprises an inner ring and an outer ring which can rotate relatively, the outer ring is sleeved on the inner ring, and the outer peripheral surface of the outer ring is provided with gear teeth; the inner ring is connected with the base body, and the outer ring is used for being connected with the pipe expander body; and the rotary driving device is arranged on the base body and comprises a driving gear, and the driving gear is meshed with the gear teeth to drive the outer ring to drive the pipe expander body to rotate. Through set up the teeth of a cogwheel on the outer peripheral face at the outer loop to it is rotatory through the rotary driving device drive outer loop that sets up outside the outer loop, make gear cooperation position expose in the outside, thereby be favorable to in time discovering the problem and eliminating the hidden danger, guarantee the job stabilization nature of electric tube expander base structure, avoid because of the slewing bearing jamming that the problem discovery untimely leads to, electric tube expander base structure damage scheduling problem, solved the poor problem of electric tube expander base structure's among the correlation technique use reliability.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

FIG. 1 shows a schematic structural view of an embodiment of the expander base structure according to the present invention;

figure 2 shows a schematic exploded view of a base body of an embodiment of the pipe expander base structure according to the invention;

FIG. 3 shows a schematic structural diagram of an embodiment of the pipe expander according to the present invention;

fig. 4 is a schematic view showing a base structure of a pipe expander in the related art.

Wherein the figures include the following reference numerals:

1. a base body; 11. mounting a plate; 111. an annular groove; 12. a support frame; 121. a cross beam; 122. a stringer; 123. a support plate; 13. a base plate; 14. leveling a gasket; 2. a rotating connection structure; 21. an inner ring; 22. an outer ring; 221. gear teeth; 3. a rotation driving device; 31. a drive gear; 32. a drive motor; 33. a driving gear; 34. a movable seat; 4. a guard; 100. a pipe expander body; 200. tube expander base structure.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 2, the present invention provides a base structure of a pipe expander, including: a base body 1; the rotary connecting structure 2 comprises an inner ring 21 and an outer ring 22 which can rotate relatively, the outer ring 22 is sleeved on the inner ring 21, and the outer peripheral surface of the outer ring 22 is provided with gear teeth 221; the inner ring 21 is connected with the base body 1, and the outer ring 22 is used for being connected with the pipe expander body 100; the rotary driving device 3, the rotary driving device 3 is disposed on the base body 1, the rotary driving device 3 includes a driving gear 31, the driving gear 31 is engaged with the gear teeth 221 to drive the outer ring 22 to drive the tube expander body 100 to rotate.

The applicant finds that impact is easily generated during the rotation operation of the pipe expander, such as starting and sudden stop, frequent impact action can lead to the loosening of the screw on the rotating connection structure 2 or the rotary driving device 3 in the related art, so that the rotation of the pipe expander is unstable, and after the fallen screw is clamped into a gap of the rotating connection structure 2, the situation that the rotating connection structure 2 is clamped can also occur, so that the base structure of the pipe expander is easily damaged.

The base structure of the pipe expander comprises a base body 1; the rotary connecting structure 2 comprises an inner ring 21 and an outer ring 22 which can rotate relatively, the outer ring 22 is sleeved on the inner ring 21, and the outer peripheral surface of the outer ring 22 is provided with gear teeth 221; the inner ring 21 is connected with the base body 1, and the outer ring 22 is used for being connected with the pipe expander body 100; the rotary driving device 3, the rotary driving device 3 is disposed on the base body 1, the rotary driving device 3 includes a driving gear 31, the driving gear 31 is engaged with the gear teeth 221 to drive the outer ring 22 to drive the tube expander body 100 to rotate. Through set up the teeth of a cogwheel 221 on the outer peripheral face at outer loop 22, and it is rotatory through the rotatory drive arrangement 3 drive outer loop that sets up outside outer loop 22, make gear cooperation position expose in the outside, thereby be favorable to discovering the problem in time and eliminating hidden danger, guarantee the job stabilization nature of electric tube expander base structure, avoid because of the rotation connection structure 2 jamming that the problem discovery untimely leads to, electric tube expander base structure damages the scheduling problem, the problem of electric tube expander base structure's among the correlation technique use reliability difference has been solved.

In addition, the applicant researches and discovers that the more important reason that the rotation smoothness of the pipe expander in the related art is poor is that the pipe expander is easy to generate impact during the rotation operation, such as starting and sudden stopping, the impact action can cause the inner ring of the rotary connecting structure 2 to slightly deform, and the related art adopts an internal tooth driving structure, the distance between the adjacent internal teeth can be reduced when the inner ring deforms, so that the matching effect of the internal teeth and the driving gear of the rotary driving device is influenced, and the rotation of the pipe expander is not smooth. Through set up teeth of a cogwheel 221 on the outer peripheral face of outer ring 22, in the course of the work of electric tube expander, even the outer ring 22 receives the impact and takes place small deformation, its and the normal inserting that does not influence the tooth of drive gear 31 can take place to keep away from relatively with the teeth of a cogwheel 221 of drive gear 31's cooperation position department of rotary driving device 3, still can guarantee to rotate the stationary motion of connection structure 2, solved the electric tube expander among the prior art and rotated unstable problem.

Further, by providing the gear teeth 221 on the outer peripheral surface of the outer ring 22, the rotary drive device 3 can be disposed outside the outer ring 22, which can effectively facilitate the installation and maintenance of the base structure of the pipe expander.

The rotation driving device 3 includes: the driving motor 32, the driving motor 32 is fixedly arranged on the base body 1; the driving gear 33, the driving gear 33 is connected with the output shaft of the driving motor 32; the driving gear 31 is mounted on the movable seat 34, the movable seat 34 is adjustably arranged on the base body 1, and the driving gear 31 is meshed with the driving gear 33.

By adjusting the position of the movable seat 34, the driving gear 31 can be well meshed with the driving gear 33 and the gear teeth 221, thereby ensuring the driving effect on the outer ring 22. In addition, the driving gear 33 and/or the driving gear 31 with different sizes can be replaced according to requirements, and the meshing effect between the driving gear 31 and the driving gear 33 and between the driving gear 31 and the gear teeth 221 is guaranteed, so that the transmission ratio is adjusted, and the driving flexibility of the pipe expander body 100 is improved.

In the present embodiment, the movable seat 34 is disposed along a first predetermined direction, and the first predetermined direction is perpendicular to a line between the axis of the driving gear 33 and the axis of the rotating connection structure 2. Specifically, be equipped with on base body 1 along two supporting seats that first direction interval set up of predetermineeing, sliding seat 34 is located between two supporting seats, all be equipped with the regulation double-screw bolt on two supporting seats, be equipped with the adjusting nut who corresponds with two regulation double-screw bolts on the sliding seat 34, two regulation double-screw bolts and two adjusting nut one-to-ones ground cooperation, thereby through rotating two regulation double-screw bolts drive sliding seat 34 along the motion of first direction of predetermineeing, this kind of structure has the advantage that stability is good, the difficult problem that sliding seat 34 rocked that appears.

In addition, be equipped with the bar-shaped guide way on the sliding seat 34, the guide way extends the setting along first predetermined direction, is equipped with the guide post on the base body 1, and the guide post is inserted and is established in the guide way, and the guide post sets up at the guide way slidable to the motion of sliding seat 34 along first predetermined direction is led.

Preferably, the movable seat 34 is adjustably arranged along the circumferential direction of the rotary connection structure 2, so that the driving gear 31 and the driving gear 33 can be matched or separated by adjusting the position of the movable seat 34, and the maintenance of the base structure of the pipe expander can be facilitated.

Since the gear teeth 221 are provided on the outer circumferential surface of the outer ring 22, the tube expander base structure includes the protection member 4, and the protection member 4 is provided extending along the circumferential direction of the rotating connecting structure 2 to protect at least a portion of the rotating connecting structure 2.

The guard member 4 is plural, and the plurality of guard members 4 are arranged at intervals in the circumferential direction of the rotating link structure 2. Specifically, the protection member 4 includes an arc-shaped plate section for protecting the rotating connection structure 2 and a connection plate section for connecting with the base body 1, and the connection plate section is provided with a connection hole. In this way, the rotary connection structure 2 can be flexibly protected and surrounding components can be avoided.

Specifically, the base body 1 includes: the mounting plate 11, the rotary connecting structure 2 and the rotary driving device 3 are all arranged on the mounting plate 11; the supporting frame 12, the supporting frame 12 is disposed below the mounting plate 11, the supporting frame 12 has a plurality of cross beams 121 disposed along the horizontal direction and a plurality of longitudinal beams 122 disposed along the horizontal direction, each cross beam 121 and each longitudinal beam 122 are disposed in a crossing manner, and each cross beam 121 and each longitudinal beam 122 are connected to the mounting plate 11 to support the mounting plate 11. In this way, the rotation connecting structure 2 and the rotation driving device 3 are both mounted on the mounting plate 11, and the plurality of cross beams 121 and the plurality of longitudinal beams 122 are both connected to the mounting plate 11, so that the structure of the mounting plate 11 can be effectively reinforced. Compared with the structure that the rotary connecting structure 2 is directly arranged on the plate-shaped bottom plate in the related art, the base body 1 with the structure can effectively reduce the deformation of the mounting plate 11 and is beneficial to improving the stability of the base structure of the pipe expander in use.

In order to improve the installation stability of the rotary connection structure 2, an annular groove 111 is formed in the installation plate 11, a first connection hole is formed in the bottom of the annular groove 111, a second connection hole is formed in the inner ring 21, the inner ring 21 is clamped in the annular groove 111, and the inner ring 21 is connected with the installation plate 11 through a first fastener penetrating through the first connection hole and the second connection hole.

Specifically, the base body 1 includes a bottom plate 13, the bottom plate 13 is disposed below the support frame 12, and the bottom plate 13 is connected to the support frame 12. Like this, mounting panel 11, braced frame 12 and bottom plate 13 form box structure jointly, have fine structural stability, are favorable to realizing the steady support to rotating connection structure 2, reduce the influence that the deformation of base body 1 caused rotating connection structure 2 work, are favorable to guaranteeing that electric tube expander body 100 rotates steadily.

In order to provide a stable supporting effect for the mounting plate 11, the supporting frame 12 includes a plurality of supporting plates 123 extending in a horizontal direction, and the plurality of supporting plates 123 are connected to the mounting plate 11 and the bottom plate 13. The plurality of support plates 123 include a plurality of lateral plates and a plurality of longitudinal plates, and each lateral plate is disposed to intersect with each longitudinal plate.

In addition, the base body 1 includes a plurality of leveling pads 14, and the plurality of leveling pads 14 are disposed at intervals below the bottom plate 13 to support the bottom plate 13 through the plurality of leveling pads 14. The base body 1 can adapt to various grounds by adjusting the position and the thickness of the leveling gasket 14, and the support stability of the pipe expander body 100 is ensured.

Specifically, the rotary connection structure 2 is a slewing bearing, the inner ring 21 is an inner ring of the slewing bearing, the outer ring 22 is an outer ring of the slewing bearing, rolling bodies are arranged between the inner ring and the outer ring, and the rolling bodies are in rolling fit with the outer ring and the inner ring.

As shown in fig. 3, the present invention further provides a pipe expander, which includes a pipe expander base structure 200 and a pipe expander body 100, wherein the pipe expander body 100 is rotatably mounted on the pipe expander base structure 200, and the pipe expander base structure 200 is the above-mentioned pipe expander base structure.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A tube expander base structure, comprising:

a base body (1);

the connecting structure comprises a rotating connecting structure (2), wherein the rotating connecting structure (2) comprises an inner ring (21) and an outer ring (22) which can rotate relatively, the outer ring (22) is sleeved on the inner ring (21), and gear teeth (221) are arranged on the outer peripheral surface of the outer ring (22); the inner ring (21) is connected with the base body (1), and the outer ring (22) is used for being connected with a pipe expander body (100);

rotation driving device (3), rotation driving device (3) set up in on base body (1), rotation driving device (3) are including drive gear (31), drive gear (31) with teeth of a cogwheel (221) meshing, in order to drive outer loop (22) drive electric tube expander body (100) are rotatory.

2. The tube expander base structure according to claim 1, wherein said rotary drive means (3) comprises:

the driving motor (32), the said driving motor (32) is fixedly set up on the said base body (1);

a drive gear (33), the drive gear (33) being connected to an output shaft of the drive motor (32);

the movable seat (34), install drive gear (31) on movable seat (34), movable seat (34) position is adjustably set up on base body (1), drive gear (31) with driving gear (33) meshing.

3. The pipe expander base structure according to claim 1, characterized in that it comprises a shield (4), said shield (4) being arranged along a circumferential extension of said rotating connection structure (2) to shield at least part of said rotating connection structure (2).

4. The pipe expander base structure according to claim 1, wherein the base body (1) comprises:

the mounting plate (11), the rotary connecting structure (2) and the rotary driving device (3) are mounted on the mounting plate (11);

braced frame (12), braced frame (12) set up in the below of mounting panel (11), braced frame (12) have many crossbeams (121) that set up along the horizontal direction and many longerons (122) that set up along the horizontal direction, each crossbeam (121) and each longeron (122) cross arrangement, each crossbeam (121) and each longeron (122) all with mounting panel (11) are connected in order to be right mounting panel (11) support.

5. The base structure of the pipe expander according to claim 4, wherein an annular groove (111) is formed in the mounting plate (11), a first connection hole is formed in the bottom of the annular groove (111), a second connection hole is formed in the inner ring (21), the inner ring (21) is clamped in the annular groove (111), and the inner ring (21) is connected with the mounting plate (11) through a first fastener penetrating through the first connection hole and the second connection hole.

6. The tube expander base structure according to claim 4, characterized in that the base body (1) comprises a bottom plate (13), the bottom plate (13) being arranged below the support frame (12), the bottom plate (13) being connected with the support frame (12).

7. The tube expander base structure according to claim 6, characterized in that the support frame (12) comprises a plurality of support plates (123) extending in a horizontal direction, the plurality of support plates (123) being connected to the mounting plate (11) and the base plate (13).

8. The tube expander base structure according to claim 6, characterized in that the base body (1) comprises a plurality of leveling washers (14), the plurality of leveling washers (14) being arranged at intervals below the bottom plate (13) to support the bottom plate (13) by the plurality of leveling washers (14).

9. The pipe expander base structure according to any one of claims 1 to 8, wherein the rotary connection structure (2) is a slewing bearing, the inner ring (21) is an inner ring of the slewing bearing, the outer ring (22) is an outer ring of the slewing bearing, rolling bodies are arranged between the inner ring and the outer ring, and the rolling bodies are in rolling engagement with both the outer ring and the inner ring.

10. A pipe expander, characterized in that the pipe expander comprises a pipe expander base structure (200) and a pipe expander body (100), the pipe expander body (100) being rotatably mounted on the pipe expander base structure (200), wherein the pipe expander base structure (200) is a pipe expander base structure according to any one of claims 1 to 9.