CN220698680U

CN220698680U - Flexible supporting device

Info

Publication number: CN220698680U
Application number: CN202322204609.8U
Authority: CN
Inventors: 易晓岚; 徐山; 周奥; 程元义; 穆忠林; 付庆; 卢腊; 张�浩
Original assignee: China Railway Construction Heavy Industry Group Co Ltd
Current assignee: China Railway Construction Heavy Industry Group Co Ltd
Priority date: 2023-08-16
Filing date: 2023-08-16
Publication date: 2024-04-02
Anticipated expiration: 2033-08-16

Abstract

The utility model discloses a flexible supporting device, which is used for welding and supporting a large annular member of shield or wind power, and comprises: the central frame is used as a middle support, a plurality of support arms uniformly distributed along the circumferential direction extend radially from the central frame, and a first connecting structure is arranged at the end part of each support arm; an elongated arm for mating the flexible support means to the inner diameter of the annular member, the elongated arm having a first end for connection with the first connection structure; the telescopic adjusting mechanism comprises a connecting end which is used for being connected with the first connecting structure or the second end of the lengthening arm, and one or more groups of matching ends which are used for being matched with the inner wall of the annular member, and the telescopic adjusting mechanism is used for adjusting the distance between the connecting end and the matching end within a preset range; the flexible supporting device is used for being transferred into the annular component when the telescopic adjusting mechanism is in a retracted state and is used for enabling the telescopic adjusting mechanism to extend to be abutted against the inner wall of the annular component.

Description

Flexible supporting device

Technical Field

The utility model relates to the technical field of processing and manufacturing of large ring members, in particular to a flexible supporting device.

Background

The large ring member is widely applied to shell structural members such as shield, wind power and the like, the diameter of the large ring member is usually more than 3 meters, but the large ring member cannot be rolled integrally, a plurality of sections of ring plates are needed to be spliced into a whole circle, welding deformation easily occurs in the splicing manufacturing process, the deformation trend is usually uncontrollable, the outer contour of the ring member is caused to deform to a large extent, and meanwhile, the welding deformation is uncontrollable, so that rigidity reinforcement is needed to be carried out in the ring member in the welding process, and the welding deformation is in a controllable range.

In the prior art, in order to resist deformation generated by welding of the ring members, the inner parts of the ring members are welded with sectional materials in a lap joint mode to form a 'rice' -shaped structure, the inner parts of the ring members are rigidly supported, and the ring members are cut off after manufacturing is finished. By adopting the fixed type support frame, when the diameter of the ring member changes, the production requirement can be met only by being provided with a large number of meter-shaped support frames with the specification, after the fixed type meter-shaped support frame is used for a plurality of times, the end part of the fixed type meter-shaped support frame is repeatedly welded and cut, and the fixed type meter-shaped support frame can be used only by repair welding a section of steel due to the shortened size of the fixed type meter-shaped support frame, has poor universality and has potential safety hazards when being cut off.

The prior adjustable rice word supporting device can solve the problem of universality, but still has the following problems:

1. poor torsion resistance. At present, the existing adjustable rice-shaped support is generally subjected to telescopic adjustment by a screw rod, and the screw rod is weak in guidance quality and poor in torsion resistance. And in the supporting process, unbalanced load is likely to occur, and after the unbalanced load occurs, the screw rod is easy to bend or loose, so that the supporting is invalid.

2. The versatility is poor. The existing adjustable rice-shaped support adjusting range is generally determined by the length of a screw rod, but the support is insufficient along with the lengthening of the screw rod, so that the adjusting range is very limited.

3. The support is poor. The existing adjustable type rice-shaped supporting device is generally composed of 4-12 supporting rods, supporting points of ring members with larger diameters are required to be arranged densely to effectively control welding deformation, and the number of the supporting rods is increased to cause overlarge space occupation and redundant structure.

Disclosure of Invention

The utility model provides a flexible supporting device, which aims to solve the technical problems of poor universality and large occupied structural space of the existing supporting device.

The technical scheme adopted by the utility model is as follows:

a flexible support device for welding support of a large annular member for shield or wind power, the flexible support device comprising:

the center frame is used as a middle support, the center frame is radially extended with a plurality of support arms which are uniformly distributed along the circumferential direction of the center frame, and the end parts of the support arms are provided with first connecting structures;

an elongated arm for matching the flexible support means to an inner diameter of the annular member, a first end of the elongated arm for connection with the first connection structure;

the telescopic adjusting mechanism comprises a connecting end and one or more groups of matching ends, wherein the connecting end is used for being connected with the first connecting structure or connected with the second end of the lengthening arm, the matching ends are used for being matched with the inner wall of the annular component, and the telescopic adjusting mechanism is used for adjusting the distance between the connecting end and the matching ends in a preset range.

As a further improvement of the above technical solution, the telescopic adjustment mechanism includes a transition block disposed at the mating end and a separation structure disposed between the transition block and the mating end, where the transition block is used for welding with an inner wall of the annular member and separating from the mating end through the separation structure after the welding of the annular member is completed.

As a further improvement of the technical scheme, the first end of the transition block is provided with a matching groove for embedding the end part of the matching end, and the separation structure comprises a pin hole and a threaded pin, wherein the pin hole is respectively formed in the matching end and the transition block, and the threaded pin is used for penetrating the pin hole.

As a further improvement of the technical scheme, the telescopic adjusting mechanism comprises a cylindrical supporting seat arranged on one side of the connecting end, a guide sleeve arranged on the first end in the supporting seat, a thread bush arranged on the second end of the supporting seat, a telescopic arm penetrating through the guide sleeve, and a screw rod coaxially connected with the first end of the telescopic arm and in threaded connection with the thread bush, wherein the second end of the telescopic arm is the matching end, and the screw rod is used for rotationally adjusting the position of the matching end and then adjusting the distance between the matching end and the connecting end.

As a further improvement of the technical scheme, a rotation stopping structure is arranged between the telescopic arm and the guide sleeve, and the screw rod can be connected with the telescopic arm in a circumferential rotation mode.

As a further improvement of the technical scheme, the rotation stopping structure comprises key grooves respectively formed in the outer wall of the telescopic arm and the inner wall of the guide sleeve, and flat keys embedded in the key grooves.

As a further improvement of the technical scheme, the large end of the screw is provided with a step structure, the first end of the telescopic arm is provided with an end face groove for embedding the large end of the screw, and the first end of the telescopic arm is provided with a limiting ring for axially limiting the step structure of the screw.

As a further improvement of the above technical solution, guide sleeves distributed at a preset angle are respectively arranged on two sides of the connecting end, so as to match with the radial direction of the annular member.

As a further improvement of the above technical solution, the first end of the extension arm and the connection end of the telescopic adjustment mechanism are respectively provided with a second connection structure for being connected with the first connection structure in a matching manner, and the second end of the extension arm is provided with the first connection structure.

As a further improvement of the above technical scheme, the first connecting structure comprises a first connecting flange and a connecting boss protruding from the first connecting flange, the second connecting structure comprises a second connecting flange and a connecting groove formed in the second connecting flange and used for embedding the connecting boss, or the first connecting structure comprises a first connecting flange and a connecting groove formed in the first connecting flange, and the second connecting structure comprises a second connecting flange and a connecting boss protruding from the second connecting flange.

The utility model has the following beneficial effects:

the flexible supporting device takes the center frame as a center supporting structure, has certain rigidity, radially extends to form a plurality of supporting arms and is provided with a connecting structure for connecting the lengthening arms or the telescopic adjusting mechanism; according to the inner diameter of the annular component, a telescopic adjusting mechanism is installed after the extension arm or the plurality of extension arms with the length being matched are selected and connected in a combined mode, or the support arm and the telescopic adjusting mechanism are directly connected under the condition that the length condition is met, so that the inner diameter of the annular component is located in the adjusting range of the supporting device, the telescopic adjusting mechanism is adjusted to enable the annular component to be in a retracted state, a sufficient gap is reserved between the annular component and the inner wall of the annular component, after the annular component is riveted and positioned, the supporting device can be transferred into the annular component in a lifting mode, the telescopic adjusting mechanism is adjusted to enable the matched end of the annular component to be in contact with the inner wall of the annular component, the annular component is welded to achieve the supporting of the annular component, and after the welding is completed, the supporting device is removed and lifted out, and the welding is completed; the device is used for adapting the inner diameter of the annular member by using the lengthening arms with different lengths, the matching ends are in contact with the inner wall of the annular member by adjusting the distance between the matching ends and the corresponding connecting ends, after welding, the inner wall of the annular member can be supported, each supporting point is independently adjusted, the supporting effect of each supporting point is further guaranteed, the problem of roundness variation in the welding process of the large annular member is solved, the supporting device has better supporting effect and stronger adaptability, the device adapts to the use scene of the annular member with different diameter specifications, and the problems of poor universality and large occupied structural space of the existing supporting device are solved.

In addition to the objects, features and advantages described above, the present utility model has other objects, features and advantages. The utility model will be described in further detail with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the construction of a preferred embodiment of the present utility model;

FIG. 2 is a partial cross-sectional view of the telescopic adjustment mechanism of the preferred embodiment of the present utility model;

FIG. 3 is a schematic illustration of the structure of a center frame in accordance with a preferred embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of the extender arm according to the preferred embodiment of the present utility model;

FIG. 5 is a schematic view of the telescopic boom structure of the preferred embodiment of the present utility model;

FIG. 6 is a schematic diagram of a transition block structure in accordance with a preferred embodiment of the present utility model;

FIG. 7 is a schematic view of a portion of the telescopic adjustment mechanism according to a preferred embodiment of the present utility model;

FIG. 8 is a schematic view of the structure of a screw according to a preferred embodiment of the present utility model;

fig. 9 is a reference diagram of step S1 of the first embodiment of the present utility model;

fig. 10 is a reference diagram of step S2 of the first embodiment of the present utility model;

fig. 11 is a reference diagram of step S3 of the first embodiment of the present utility model;

fig. 12 is a step S4 reference diagram of the first embodiment of the present utility model;

1. the center frame 11, the support arm 2, the extension arm 21, the connecting boss 22, the connecting groove 3, the telescopic adjusting mechanism 31, the transition block 32, the threaded pin 33, the flat key 34, the guide sleeve 35, the telescopic arm 351, the key slot 352, the pin hole 36, the support seat 37, the limiting ring 38, the threaded sleeve 39, the screw 4, the annular member 5 and the support block.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection with embodiments.

Referring to fig. 1 to 12, a preferred embodiment of the present utility model provides a flexible support device for welding support of a large annular member 4 for shield or wind power, the flexible support device comprising:

the center frame 1 is used as a middle support, a plurality of support arms 11 are uniformly distributed along the circumferential direction of the center frame 1, and a first connecting structure is arranged at the end part of each support arm 11; in this embodiment, taking 8 support arms 11 as an example, the number of support arms 11 in other embodiments can be set according to actual application scenarios and requirements;

an elongated arm 2 for matching the flexible support means to the inner diameter of the annular member 4, a first end of the elongated arm 2 being adapted to be connected to a first connection structure;

the telescopic adjustment mechanism 3 comprises a connecting end for connecting with the first connecting structure or with the second end of the lengthening arm 2, and further comprises one or more groups of matching ends for matching with the inner wall of the annular member 4, and the telescopic adjustment mechanism 3 is used for adjusting the distance between the connecting end and the matching end within a preset range.

The working principle of the flexible supporting device is as follows: taking the center frame 1 as a center supporting structure, the center frame needs to have certain rigidity, and radially extends to form a plurality of supporting arms 11 and is provided with a first connecting structure for connecting the lengthening arm 2 or the telescopic adjusting mechanism 3; according to the inner diameter of the annular member 4, the length-adaptive lengthening arm 2 or a plurality of lengthening arms 2 are selected and connected in a combined manner, then a telescopic adjusting mechanism 3 is installed, or a supporting arm 11 is directly connected with the telescopic adjusting mechanism 3 under the condition that the length condition is met, so that the inner diameter of the annular member 4 is positioned in the adjusting range of the supporting device, the telescopic adjusting mechanism 3 is adjusted to be in a retracted state, a sufficient gap is reserved between the telescopic adjusting mechanism and the inner wall of the annular member 4, after the annular member 4 is riveted and positioned, the supporting device can be transferred into the annular member 4 through a lifting mode and the like, the telescopic adjusting mechanism 3 is adjusted to extend to the matched end to be in contact with the inner wall of the annular member 4, then the matched end and the inner wall of the annular member 4 are welded to realize the supporting of the annular member 4, after the welding of the annular member 4 is finished, the supporting device is removed, and the welding is completed; the device can support the inner wall of the annular member 4 after welding by adjusting the distance between each matching end and the corresponding connecting end so as to adapt to the inner diameter of the annular member 4, each supporting point is independently adjusted so as to ensure that each supporting point realizes the supporting effect, the roundness variation problem in the welding process of the large annular member 4 is solved, the supporting device has better supporting effect and stronger adaptability, and the device adapts to the use scene of the annular member 4 with different diameter specifications, and solves the problems of poor universality and large occupied structural space of the existing supporting device.

Further, the telescopic adjusting mechanism 3 comprises a transition block 31 arranged at the matching end and a separation structure arranged between the transition block 31 and the matching end, the transition block 31 is used for being welded with the inner wall of the annular member 4 and separated from the matching end through the separation structure after the welding of the annular member 4 is completed, after the supporting device is transferred into the annular member 4, the telescopic mechanism is adjusted to enable the transition block 31 to be welded with the inner wall of the annular member 4 after the transition block 31 is contacted with the inner wall of the annular member 4, after the welding of the annular member 4 is completed, the transition block 31 is separated from the telescopic adjusting mechanism 3 through the separation mechanism, the telescopic adjusting mechanism 3 is retracted to be lifted out after no interference with the transition block 31, and then all detachment can be completed only by cutting off the transition block 31, and by arranging the transition block 31, only the transition block 31 with low manufacturing cost is consumed, so that the whole durability of the device is improved, and the assembly and disassembly are safer and more convenient; compared with a structure supported by section steel and a ring plate in a welded mode, the combined structure is higher in universality, the repeated utilization rate of the device is improved, and raw material consumption is saved;

in this embodiment, the first end of the transition block 31 is provided with a mating groove for embedding the end of the mating end, the separation structure includes a pin hole 352 respectively provided in the mating end and the transition block 31, and a threaded pin 32 for penetrating the pin hole 352, the mating end is inserted into the mating groove and then the pin hole 352 is inserted into the mating groove to fix the mating end and the mating end relative to the threaded pin, the threaded pin 32 is removed after the inner wall of the transition block 31 and the inner wall of the annular member 4 are welded, and the mating end and the threaded pin are separated by retracting the telescopic adjustment mechanism 3, so that the operation is simple.

In this embodiment, the telescopic adjustment mechanism 3 includes a cylindrical support seat 36 disposed at one side of the connection end, a guide sleeve 34 disposed at a first end in the support seat 36, a threaded sleeve 38 mounted at a second end of the support seat 36, a telescopic arm 35 penetrating the guide sleeve 34, and a screw rod 39 coaxially connected to the first end of the telescopic arm 35 and screwed to the threaded sleeve 38, the second end of the telescopic arm 35 is a mating end, the screw rod 39 is used for rotating to adjust the position of the mating end and thus adjust the distance between the mating end and the connection end, the axial direction of the screw rod 39 and the position of the mating end can be adjusted approximately along the radial direction of the center frame 1 by rotating the screw rod 39 to realize stepless adjustment and flexible support of the annular member 4,

in this embodiment, a rotation stopping structure is disposed between the telescopic arm 35 and the guide sleeve 34, the screw 39 is connected to the telescopic arm 35 in a circumferential rotation manner, and the rotation stopping structure is provided to prevent the telescopic arm 35 from rotating, thereby preventing the transition block 31 connected to the telescopic arm 35 from rotating, and stably guiding the telescopic arm to move;

specifically, the rotation stopping structure comprises key grooves 351 respectively formed in the outer wall of the telescopic arm 35 and the inner wall of the guide sleeve 34, and further comprises a flat key 33 embedded in the key grooves 351, wherein the key grooves 351 on the telescopic arm 35 are long-strip-shaped key grooves 351, and the flat key 33 arranged on the guide sleeve 34 is in sliding fit with the key grooves 351 of the telescopic arm 35, so that the guide is stable; the large end of the screw 39 is provided with a step structure, the first end of the telescopic arm 35 is provided with an end face groove for embedding the large end of the screw 39, the first end of the telescopic arm 35 is provided with a limiting ring 37 for axially limiting the step structure of the screw 39, and the screw 39 is connected with the telescopic arm 35 in a rotating way and axially limited.

It should be understood that, in this embodiment, the two sides of the connecting end are respectively provided with guide sleeves 34 distributed at a preset angle to match the radial direction of the annular member 4, and in other embodiments, more sets of guide sleeves 34 may be provided to increase the supporting points;

in this embodiment, the first end of the extension arm 2 and the connection end of the telescopic adjustment mechanism 3 are respectively provided with a second connection structure for matching connection with the first connection structure, and the second end of the extension arm 2 is provided with the first connection structure, so that the matching connection between the support arm 11 and the extension arm 2 or the matching connection between the extension arm 2 and the telescopic adjustment mechanism 3 and the matching connection between the extension arm 2 and the telescopic adjustment mechanism 3 can be realized;

in this embodiment, the first connection structure includes a first connection flange and a connection boss 21 protruding from the first connection flange, the second connection structure includes a second connection flange and a connection groove 22 formed in the second connection flange for embedding the connection boss 21, and the connection boss 21 and the connection groove 22 are square, so that the connection position has anti-torsion performance, and stability, torsion resistance and durability are greatly improved;

in some embodiments, the first connecting structure may further include a first connecting flange and a connecting groove 22 formed in the first connecting flange, and the second connecting structure includes a second connecting flange and a connecting boss 21 protruding from the second connecting flange.

Example 1

The use of the flexible support means of the preferred embodiment to support the annular member 4 for machining comprises the steps of:

s1, welding a supporting block 5 to the inner wall of a ring member, and referring to FIG. 9;

s2, selecting a proper lengthening arm 2, rotating a screw 39 to adjust the distance, and referring to FIG. 10;

s3, hoisting the flexible supporting device to the supporting block 5, adjusting the screw 39 to enable the transition block 31 to be in contact with the inner wall of the annular member, and welding the transition block 31 and the annular member 4, with reference to FIG. 11;

s4, taking out the threaded pin 32, retracting the adjusting screw 39, hoisting out the flexible supporting device, and finally cutting off the supporting block 5 and the transition block 31 remained on the ring member, referring to FIG. 12.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A flexible support device for the welded support of a large annular member (4) for shield or wind power, characterized in that it comprises:

the center frame (1) is used as a middle support, the center frame (1) radially extends to form support arms (11), a plurality of the support arms (11) are uniformly distributed along the circumferential direction of the center frame (1), and a first connecting structure is arranged at the end part of each support arm (11);

-an elongated arm (2) for matching the flexible support means to the inner diameter of the annular member (4), a first end of the elongated arm (2) being adapted to be connected with the first connection structure;

the telescopic adjusting mechanism (3) comprises a connecting end which is connected with the first connecting structure or the second end of the lengthening arm (2), and one or more groups of matching ends which are matched with the inner wall of the annular component (4), wherein the telescopic adjusting mechanism (3) is used for adjusting the distance between the connecting end and the matching end within a preset range.

2. The flexible support device according to claim 1, wherein the telescopic adjustment mechanism (3) comprises a transition block (31) arranged at the mating end and a separation structure arranged between the transition block (31) and the mating end, the transition block (31) being adapted to be welded with the inner wall of the annular member (4) and to be disengaged from the mating end via the separation structure after the welding of the annular member (4) is completed.

3. The flexible supporting device according to claim 2, wherein the first end of the transition block (31) is provided with a mating groove for embedding an end of the mating end, and the separating structure comprises a pin hole (352) respectively provided at the mating end and the transition block (31) and a threaded pin (32) for penetrating the pin hole (352).

4. The flexible supporting device according to claim 2, wherein the telescopic adjusting mechanism (3) comprises a cylindrical supporting seat (36) arranged at one side of the connecting end, a guide sleeve (34) arranged at a first end in the supporting seat (36), a threaded sleeve (38) arranged at a second end of the supporting seat (36), a telescopic arm (35) penetrating through the guide sleeve (34) and a screw rod (39) coaxially connected with the first end of the telescopic arm (35) and in threaded connection with the threaded sleeve (38), the second end of the telescopic arm (35) is the matching end, and the screw rod (39) is used for rotationally adjusting the position of the matching end so as to adjust the distance between the matching end and the connecting end.

5. Flexible support device according to claim 4, characterized in that a rotation stopping structure is arranged between the telescopic arm (35) and the guiding sleeve (34), the screw (39) being connected to the telescopic arm (35) in a circumferentially rotatable manner.

6. The flexible supporting device according to claim 5, wherein the rotation stopping structure comprises a key groove (351) respectively formed on the outer wall of the telescopic arm (35) and the inner wall of the guide sleeve (34), and further comprises a flat key (33) embedded in the key groove (351).

7. The flexible support device according to claim 5, characterized in that the large end of the screw (39) is provided with a step formation, the first end of the telescopic arm (35) is provided with an end surface groove for embedding the large end of the screw (39), and the first end of the telescopic arm (35) is provided with a stop collar (37) for axially limiting the step formation of the screw (39).

8. Flexible support device according to any one of claims 4-7, characterized in that the two sides of the connecting end are provided with guide sleeves (34) distributed at a predetermined angle, respectively, to match the radial direction of the annular member (4).

9. Flexible support device according to any of claims 1-7, characterized in that the first end of the extension arm (2) and the connection end of the telescopic adjustment mechanism (3) are provided with a second connection structure for a mating connection with the first connection structure, respectively, and the second end of the extension arm (2) is provided with a first connection structure.

10. The flexible support device according to claim 9, wherein the first connection structure comprises a first connection flange and a connection boss (21) protruding from the first connection flange, the second connection structure comprises a second connection flange and a connection groove (22) provided in the second connection flange for embedding the connection boss (21), or the first connection structure comprises a first connection flange and a connection groove (22) provided in the first connection flange, and the second connection structure comprises a second connection flange and a connection boss (21) protruding from the second connection flange.