Prefabricated tower shell section connecting structure of wind power mixed tower

Abstract

The invention belongs to the technical field of wind power, and provides a wind power mixed tower prefabricated tower shell section connecting structure which comprises a structural part, a fixing part arranged on one side of the structural part, a clamping part arranged on the inner side of the structural part, an auxiliary part arranged on one side of the structural part and a positioning part arranged on one side of the structural part. The structural part further comprises connecting sleeves arranged on the side walls of the first connecting plate and the second connecting plate. Through the arrangement of the structural part, the fixing part, the clamping part, the auxiliary part and the positioning part, the problems that in the prior art, connection is not firm, the installation precision is low, and maintenance is difficult can be effectively solved, and through the sliding fit of an insertion block and an insertion groove, the fit of a wedge block and a locking block and the clamping effect of a trapezoidal block and a groove, the clamping effect is good; and meanwhile, tools such as a screwdriver do not need to be used for installation in the installation process, and the installation efficiency of the device is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of wind power, and in particular relates to a prefabricated tower section connection structure for a wind power hybrid tower. Background Art

[0002] With the rapid development of wind power technology, the height and size of wind turbines are increasing. Hybrid tower structures, in particular, are becoming increasingly popular in the wind power sector. Hybrid towers, typically composed of concrete and steel segments, offer high strength and stability, effectively supporting the operation of large wind turbines. However, connecting the prefabricated tower sections in hybrid tower structures has always been a technical challenge.

[0003] In the existing wind turbine hybrid tower structure, the connection of prefabricated tower sections is usually achieved by bolt connection or welding. Although bolt connection is easy to install, it is easily affected by wind load and vibration during long-term operation, causing the bolts to loosen, thereby affecting the stability and safety of the structure. Although welding connection can provide strong connection strength, the welding process is complicated, and the welding quality is difficult to guarantee, and welding defects are prone to occur. At the same time, the welding process is time-consuming and labor-intensive, affecting the efficiency of equipment installation, and it is difficult to quickly fix and install the prefabricated tower sections of the wind turbine hybrid tower. In addition, the welded structure is difficult to disassemble and maintain, which increases the difficulty and cost of subsequent maintenance.

[0004] To this end, those skilled in the art have proposed a wind turbine hybrid tower prefabricated tower section connection structure to solve the problems raised in the background art. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a wind turbine hybrid tower prefabricated tower section connection structure to solve the problem in the prior art that it is difficult to quickly fix and install the wind turbine hybrid tower prefabricated tower section.

[0006] The prefabricated tower section connection structure of a wind power hybrid tower comprises a structural assembly, including a structural member, a fixing member arranged on one side of the structural member, a clamping member arranged on the inner side of the structural member, an auxiliary member arranged on one side of the structural member, and a positioning member arranged on one side of the structural member; The structural member includes a first connecting plate and a second connecting plate, and the structural member further includes a connecting sleeve provided on the side walls of the first connecting plate and the second connecting plate; The fixing member includes an insert fixedly mounted on the side wall of the first connecting plate, a side wall mounting groove provided on the insert, a wedge slidably mounted on the side wall of the mounting groove, and a compression spring disposed inside the mounting groove; The fixing member also includes a mounting block fixedly mounted on the side wall of the second connecting plate, a slot opened on the side wall of the mounting block, a screw threaded in the slot, a locking plate rotatably arranged on one side of the screw, and a locking block arranged on one side of the locking plate, and the insertion block is inserted into the slot and slidably arranged therewith.

[0007] Preferably, the clamping member includes an inner cavity opened on one side of the mounting block, a sliding rod slidably arranged in the inner cavity, a trapezoidal block fixedly installed on one side of the sliding rod and a groove opened on the side wall of the insertion block, and the trapezoidal block is inserted into the groove and slidably arranged therewith.

[0008] Preferably, the clamping member also includes a rotating plate rotatably arranged in the inner cavity, a return spring arranged on one side of the inner cavity, and a limit groove opened on one side of the rotating plate. One end of the sliding rod is fixedly installed with the limit plate, and the limit plate extends into the limit groove and is slidably arranged with it.

[0009] Preferably, the structural member further includes an inspection door provided on the side wall of the second connecting plate.

[0010] Preferably, the auxiliary component includes an insertion rod fixedly installed on one side of the first connecting plate and a fixed sleeve fixedly installed on one side of the second connecting plate, and the insertion rod is inserted into the fixed sleeve and slidably arranged therewith.

[0011] Preferably, the auxiliary component further comprises grooves provided on both sides of the insertion rod, a clamping block slidably disposed in the grooves, and a first spring disposed inside the grooves; The auxiliary component further comprises a through hole formed on the peripheral side of the fixing sleeve, and the clamping block extends into the through hole and is slidably arranged therewith.

[0012] Preferably, the auxiliary component further includes a fixing plate fixedly installed in the through hole, a push rod slidably arranged on one side of the fixing plate, and an arc-shaped extrusion block fixedly installed on one end of the push rod.

[0013] Preferably, the auxiliary part also includes an annular extrusion plate slidably arranged on the outside of the fixed sleeve and a tension spring arranged on one side of the second connecting plate, the two ends of the tension spring are respectively connected to the side wall of the annular extrusion plate and the side wall of the second connecting plate, and the annular extrusion plate is in contact with the arc-shaped extrusion block.

[0014] Preferably, the positioning member includes a positioning rod fixedly mounted on one side of the first connecting plate and a positioning hole opened on one side of the mounting block, and the positioning rod is inserted into the positioning hole and slidably arranged therewith.

[0015] Through the above technical solution, Compared with the prior art, the present invention has the following beneficial effects: The present invention, through the provision of structural parts, fixing parts, clamping parts, auxiliary parts and positioning parts, can effectively solve the problems of loose connection, low installation accuracy and difficult maintenance in the prior art. Through the sliding fit of the plug block and the slot, the fit of the wedge block and the locking block, and the clamping action of the trapezoidal block and the groove, the firmness and stability of the tower section connection are ensured, and the influence of wind load and vibration can be effectively resisted. At the same time, no tools such as screwdrivers are required for installation during the installation process, thereby improving the installation efficiency of the device. At the same time, the structures such as the plug rod, fixed sleeve, clamping block and tension spring in the auxiliary parts further enhance the fastening force and anti-loosening ability of the connection. The installation accuracy is improved by the setting of the positioning parts, ensuring the accurate positioning between the tower sections. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a side structural diagram of the present invention; Figure 3 It is a front view of the present invention; Figure 4 is a cross-sectional view of the mounting block of the present invention; Figure 5 for Figure 4 A magnified view of the structure at center A; Figure 6 is a cross-sectional view of the fixed sleeve in the present invention; Figure 7 It is a structural schematic diagram of the annular extrusion plate in the present invention.

[0017] In the picture: 100, structural assembly; 101, structural member; 101a, first connecting plate; 101b, second connecting plate; 101c, connecting sleeve; 101d, access door; 102, fixing member; 102a, insert; 102b, mounting groove; 102c, wedge; 102d, compression spring; 102e, mounting block; 102f, slot; 102g, screw; 102h, locking plate; 102i, locking block; 103, clamping member; 103a, inner cavity; 103b, slide bar; 103c, ladder shaped block; 103d, groove; 103e, rotating plate; 103f, return spring; 103g, limit groove; 103h, limit plate; 104, auxiliary part; 104a, insertion rod; 104b, fixing sleeve; 104c, channel; 104d, clamping block; 104e, first spring; 104f, through hole; 104h, push rod; 104i, arc-shaped extrusion block; 104j, annular extrusion plate; 104k, tension spring; 105, positioning part; 105a, positioning rod; 105b, positioning hole. DETAILED DESCRIPTION

[0018] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0019] Example 1: As shown in the attached Figure 1 To the attached Figure 4 As shown: The present invention provides a prefabricated tower segment connection structure for a wind turbine hybrid tower, comprising a structural assembly 100, including a structural member 101, a fixing member 102 arranged on one side of the structural member 101, a clamping member 103 arranged on the inner side of the structural member 101, an auxiliary member 104 arranged on one side of the structural member 101, and a positioning member 105 arranged on one side of the structural member 101; The structural member 101 includes a first connecting plate 101a and a second connecting plate 101b, the first connecting plate 101a and the second connecting plate 101b are "Z"-shaped, and the structural member 101 further includes a connecting sleeve 101c provided on the side walls of the first connecting plate 101a and the second connecting plate 101b, and the connecting sleeve 101c is used to install steel bars; The fixing member 102 includes an insert 102a fixedly mounted on the side wall of the first connecting plate 101a, a mounting slot 102b defined in the side wall of the insert 102a, a wedge 102c slidably mounted on the side wall of the mounting slot 102b, and a compression spring 102d disposed inside the mounting slot 102b. The two ends of the compression spring 102d are respectively connected to the side wall of the wedge 102c and the side wall of the mounting slot 102b. The fixing member 102 also includes a mounting block 102e fixedly mounted on the side wall of the second connecting plate 101b, a slot 102f opened on the side wall of the mounting block 102e, a screw 102g threadedly set in the slot 102f, a locking plate 102h rotatably set on one side of the screw 102g, and a locking block 102i set on one side of the locking plate 102h. The insert block 102a is inserted into the slot 102f and slidably set therewith. During installation, the insert block 102a is inserted into the slot 102f on the side wall of the mounting block 102e. During the insertion process, the inclined portion of the locking block 102i first contacts the inclined portion of the wedge block 102c. When the insert block 102a is fully inserted into the end point and needs to be pulled out, the wedge block 102c is driven by the rebound force of the compression spring 102d to reset and extend, driving the wedge block 102c to re-extend into the tooth groove of the locking block 102i. At this time, the vertical part of the wedge block 102c contacts the vertical part of the locking block 102i, thereby locking and clamping the wedge block 102c and the insert block 102a, making it impossible to pull out the insert block 102a, thereby achieving the locking and fixing of the insert block 102a.

[0020] Preferably, the positioning member 105 includes a positioning rod 105a fixedly installed on one side of the first connecting plate 101a and a positioning hole 105b opened on one side of the mounting block 102e. The positioning rod 105a is inserted into the positioning hole 105b and slidably set therewith. The positioning rod 105a and the positioning hole 105b can be positioned during installation to improve the installation efficiency of the device.

[0021] As can be seen from the above, during installation, the positioning rod 105a on the side wall of the first connecting plate 101a is inserted into the positioning hole 105b on the side wall of the second connecting plate 101b. When inserting, the insert block 102a is inserted into the slot 102f on the side wall of the mounting block 102e. At this time, the inclined portion of the locking block 102i first contacts the inclined portion of the wedge block 102c, and the wedge block 102c is squeezed inwardly into the mounting groove 102b so that the insert block 102a can be inserted inward. When a is fully inserted into the end point and needs to be pulled out, the wedge block 102c is driven by the rebound force of the compression spring 102d to reset and extend, driving the wedge block 102c to re-extend into the tooth groove of the locking block 102i. At this time, the vertical part of the wedge block 102c contacts the vertical part of the locking block 102i, thereby locking and clamping the wedge block 102c and the insert block 102a, making it impossible to pull out the insert block 102a, thereby achieving the locking and fixing of the insert block 102a.

[0022] Example 2: As shown in the attached Figure 2 To the attached Figure 5 As shown: This embodiment is basically the same as the previous embodiment, except that the clamping member 103 includes an inner cavity 103a opened on one side of the mounting block 102e, a slide rod 103b slidably set in the inner cavity 103a, a trapezoidal block 103c fixedly installed on one side of the slide rod 103b, and a groove 103d opened on the side wall of the insertion block 102a, the trapezoidal block 103c is inserted into the groove 103d and slidably set therewith, and during the insertion process, the insertion block 102a first contacts the inclined portion of the trapezoidal block 103c, and the trapezoidal block 103c is slid and squeezed to both sides, so that the insertion block 102a can continue to be inserted inward.

[0023] Preferably, the clamping member 103 further comprises a rotating plate 103e rotatably arranged in the inner cavity 103a, a return spring 103f arranged on one side of the inner cavity 103a, and a limiting groove 103g provided on one side of the rotating plate 103e. During the inward sliding insertion of the insert block 102a, the trapezoidal block 103c will drive the rotating plate to rotate slightly in the inner cavity 103a when sliding in the groove, thereby squeezing the return spring 103f. When sliding to the end point, the trapezoidal block 103c corresponds to the groove 103d provided on the side wall of the insert block 102a. At this time, the rotating plate 103e is driven by the rebound force of the return spring 103f to reset and slide in the inner cavity 103a. Since the trapezoidal block 103c will continue to be in the groove between the inner cavity 103a and the side wall of the slot 102f , limited by the notch, when the rotating plate 103e is reset and rotated, it will drive the trapezoidal block 103c to reset and slide again, so that it is inserted into the groove 103d, thereby realizing the auxiliary clamping and fixing processing of the plug block 102a. When the plug block 102a needs to be pulled out, the horizontal surface of the trapezoidal block 103c contacts the side wall in the groove 103d to perform auxiliary locking and fixing processing, thereby improving the locking and fixing effect of the plug block 102a. One end of the sliding rod 103b is fixedly installed with a limit plate 103h, which extends into the limit groove 103g and slides with it. The radius of the limit groove 103g outlet is smaller than the radius of the limit plate 103h. This setting can facilitate the limiting processing and reduce the possibility of the trapezoidal block 103c falling off.

[0024] Furthermore, the structural member 101 also includes an inspection door 101d provided on the side wall of the second connecting plate 101b. The inspection door 101d can be quickly opened when disassembly and maintenance are required to manually adjust the internal locking plate 102h and the rotating plate 103e to release the locking fixation of the plug block 102a, thereby allowing the first connecting block and the second connecting block to be quickly disassembled.

[0025] As can be seen from the above, during the installation process, the insert block 102a first contacts the inclined portion of the trapezoidal block 103c during the insertion process, and the trapezoidal block 103c is slid and squeezed to both sides. When the trapezoidal block 103c slides in the slot, it drives the rotating plate to rotate slightly in the inner cavity 103a, thereby squeezing the return spring 103f. When sliding to the end point, the trapezoidal block 103c corresponds to the groove 103d provided on the side wall of the insert block 102a. At this time, the rotating plate 103e is driven by the rebound force of the return spring 103f to rotate in the inner cavity. The trapezoidal block 103c is continuously positioned at the notch between the inner cavity 103a and the side wall of the slot 102f. The notch limits the position of the rotating plate 103e, which in turn drives the trapezoidal block 103c to slide back to its original position so that the block is inserted into the groove 103d, thereby achieving auxiliary clamping and fixing of the insert block 102a. When the insert block 102a needs to be pulled out, the horizontal surface of the trapezoidal block 103c contacts the side wall of the groove 103d to provide auxiliary locking and fixing.

[0026] Example 3: As shown in the attached Figure 1 To the attached Figure 7 As shown: On the basis of embodiment 2, the auxiliary component 104 includes an insertion rod 104a fixedly installed on one side of the first connecting plate 101a, and a fixed sleeve 104b fixedly installed on one side of the second connecting plate 101b. The insertion rod 104a is inserted into the fixed sleeve 104b and slidably arranged therewith. When the insertion block 102a on the side wall of the first connecting block is inserted into the slot 102f opened by the mounting block 102e on the side wall of the second connecting block, the insertion rod 104a is also inserted into the fixed sleeve 104b on the side wall of the second connecting plate 101b, thereby improving the stability of the installation.

[0027] Specifically, the auxiliary member 104 further includes grooves 104c provided on both sides of the insertion rod 104a, a block 104d slidably provided in the groove 104c, and a first spring 104e provided inside the groove 104c. The auxiliary member 104 further includes a through hole 104f provided on the side surface of the fixed sleeve 104b. The block 104d extends into the through hole 104f and slides therewith. When the insertion rod 104a is inserted into the fixed sleeve 104b, in the initial state, the block 104d is squeezed by the inner wall of the fixed sleeve 104b and pressed into In the groove 104c, when the insertion rod 104a is inserted to the end position inside the fixed sleeve 104b, the block 104d corresponds to the through hole 104f opened on the side wall of the fixed sleeve 104b. At this time, the block 104d is driven by the rebound force of the first spring 104e to slide toward the through hole 104f, so that it is inserted into the through hole 104f, thereby achieving fixed installation of the insertion rod 104a, thereby achieving auxiliary fixed installation of the first connecting plate 101a and the second connecting plate 101b, and improving the stability of the installation.

[0028] Furthermore, the auxiliary component 104 also includes a fixed plate fixedly installed in the through hole 104f, a top rod 104h slidably arranged on one side of the fixed plate, and an arc-shaped extrusion block 104i fixedly installed on one end of the top rod 104h. When the insertion rod 104a is inserted into the fixed sleeve 104b, the top rod 104h is squeezed by the block 104d to slide upward, driving the arc-shaped extrusion block 104i on the top rod 104h to extend out of the through hole 104f again. The auxiliary component 104 also includes an annular extrusion plate 104j slidably arranged on the outside of the fixed sleeve 104b and a tension spring 104k arranged on one side of the second connecting plate 101b. The two ends of the tension spring 104k are respectively connected to the side wall of the annular extrusion plate 104j and the second connecting plate 101b. The side wall is connected, the annular extrusion plate 104j is in contact with the arc-shaped extrusion block 104i. When the insertion rod 104a needs to be disassembled, the annular extrusion plate 104j is pulled, and the annular extrusion plate 104j slides on the outside of the fixed sleeve 104b. When it slides to the arc-shaped extrusion block 104i, the arc-shaped extrusion block 104i is squeezed, thereby driving the top rod 104h to slide downward, and squeezing the card block 104d to press it into the groove 104c, thereby releasing the clamping fixation of the insertion rod 104a. At this time, the insertion rod 104a can be quickly disassembled by directly pulling it out. At this time, the annular extrusion plate 104j is released, and the annular extrusion plate 104j is driven by the rebound force of the tension spring 104k to reset and slide for the next fixed installation.

[0029] As can be seen from the above, during the installation process, when the insertion block 102a on the side wall of the first connecting block is inserted into the slot 102f opened by the mounting block 102e on the side wall of the second connecting block, the insertion rod 104a is also inserted into the fixed sleeve 104b on the side wall of the second connecting plate 101b. When the insertion rod 104a is inserted to the end position inside the fixed sleeve 104b, the blocking block 104d corresponds to the through hole 104f opened on the side wall of the fixed sleeve 104b. At this time, the blocking block 104d is driven by the rebound force of the first spring 104e to slide toward the through hole 104f, so that it is inserted into the through hole 104f, thereby achieving fixed installation of the insertion rod 104a, thereby achieving auxiliary fixed installation of the first connecting plate 101a and the second connecting plate 101b, and improving the stability of the installation.

[0030] When the insertion rod 104a needs to be disassembled, the annular extrusion plate 104j is pulled, and the annular extrusion plate 104j slides on the outside of the fixed sleeve 104b. When it slides to the arc-shaped extrusion block 104i, the arc-shaped extrusion block 104i is squeezed, thereby driving the top rod 104h to slide downward, and squeezing the clamping block 104d to press it into the groove 104c, thereby releasing the clamping fixation of the insertion rod 104a. At this time, the insertion rod 104a can be directly pulled out to be quickly disassembled. At this time, the annular extrusion plate 104j is released, and the annular extrusion plate 104j is driven by the rebound force of the tension spring 104k to reset and slide for the next fixed installation.

[0031] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A wind turbine hybrid tower prefabricated tower section connection structure, characterized in that: include: A structural assembly (100) comprising a structural member (101), a fixing member (102) disposed on one side of the structural member (101), a clamping member (103) disposed inside the structural member (101), an auxiliary member (104) disposed on one side of the structural member (101), and a positioning member (105) disposed on one side of the structural member (101); The structural member (101) comprises a first connecting plate (101a) and a second connecting plate (101b); the structural member (101) further comprises a connecting sleeve (101c) arranged on the side walls of the first connecting plate (101a) and the second connecting plate (101b); The fixing member (102) comprises an insert (102a) fixedly mounted on the side wall of the first connecting plate (101a), a side wall mounting groove (102b) provided on the insert (102a), a wedge (102c) slidably mounted on the side wall of the mounting groove (102b), and a compression spring (102d) mounted on the inner side of the mounting groove (102b); The fixing member (102) further comprises a mounting block (102e) fixedly mounted on the side wall of the second connecting plate (101b), a slot (102f) provided on the side wall of the mounting block (102e), a screw (102g) threadedly disposed in the slot (102f), a locking plate (102h) rotatably disposed on one side of the screw (102g), and a locking block (102i) disposed on one side of the locking plate (102h), wherein the insert block (102a) is inserted into the slot (102f) and slidably disposed therewith.

2. The wind turbine hybrid tower prefabricated tower section connection structure according to claim 1, characterized in that: The clamping member (103) comprises an inner cavity (103a) opened on one side of the mounting block (102e), a sliding rod (103b) slidably arranged in the inner cavity (103a), a trapezoidal block (103c) fixedly installed on one side of the sliding rod (103b), and a groove (103d) opened on the side wall of the insert block (102a), wherein the trapezoidal block (103c) is inserted into the groove (103d) and slidably arranged therewith.

3. The wind turbine hybrid tower prefabricated tower section connection structure according to claim 2, characterized in that: The clamping member (103) further includes a rotating plate (103e) rotatably arranged in the inner cavity (103a), a return spring (103f) arranged on one side of the inner cavity (103a), and a limiting groove (103g) opened on one side of the rotating plate (103e). One end of the sliding rod (103b) is fixedly mounted on the limiting plate (103h), and the limiting plate (103h) extends into the limiting groove (103g) and is slidably arranged therewith.

4. The wind turbine hybrid tower prefabricated tower section connection structure according to claim 3, characterized in that: The structural member (101) further comprises an inspection door (101d) provided on the side wall of the second connecting plate (101b).

5. The wind turbine hybrid tower prefabricated tower section connection structure according to claim 1, characterized in that: The auxiliary component (104) comprises an insertion rod (104a) fixedly mounted on one side of the first connecting plate (101a) and a fixed sleeve (104b) fixedly mounted on one side of the second connecting plate (101b); the insertion rod (104a) is inserted into the fixed sleeve (104b) and slidably arranged therewith.

6. The wind turbine hybrid tower prefabricated tower section connection structure according to claim 5, characterized in that: The auxiliary component (104) further comprises grooves (104c) provided on both sides of the insertion rod (104a), a clamping block (104d) slidably disposed in the groove (104c), and a first spring (104e) disposed inside the groove (104c); The auxiliary component (104) further comprises a through hole (104f) formed on the peripheral side of the fixed sleeve (104b), and the clamping block (104d) extends into the through hole (104f) and is slidably arranged therewith.

7. The wind turbine hybrid tower prefabricated tower section connection structure according to claim 6, characterized in that: The auxiliary component (104) further comprises a fixing plate fixedly mounted in the through hole (104f), a push rod (104h) slidably arranged on one side of the fixing plate, and an arc-shaped extrusion block (104i) fixedly mounted on one end of the push rod (104h).

8. The wind turbine hybrid tower prefabricated tower section connection structure according to claim 7, characterized in that: The auxiliary component (104) further comprises an annular extrusion plate (104j) slidably arranged on the outside of the fixed sleeve (104b) and a tension spring (104k) arranged on one side of the second connecting plate (101b), wherein both ends of the tension spring (104k) are respectively connected to the side wall of the annular extrusion plate (104j) and the side wall of the second connecting plate (101b), and the annular extrusion plate (104j) is in contact with the arc-shaped extrusion block (104i).

9. The wind turbine hybrid tower prefabricated tower section connection structure according to claim 1, characterized in that: The positioning member (105) comprises a positioning rod (105a) fixedly mounted on one side of the first connecting plate (101a) and a positioning hole (105b) opened on one side of the mounting block (102e); the positioning rod (105a) is inserted into the positioning hole (105b) and slidably arranged therewith.

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