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CN-121976915-A - Prestressed space tower conversion section structure

CN121976915ACN 121976915 ACN121976915 ACN 121976915ACN-121976915-A

Abstract

The invention discloses a prestressed space tower conversion section structure, which relates to the technical field of tower construction and comprises a concrete body, wherein a transition section body is arranged at the top of the concrete body, a lower connecting piece is fixedly connected to the top of the transition section body, a groove is formed in the upper surface of the concrete body, an inner thread sleeve is fixedly sleeved at the position of the groove of the concrete body, a threaded rod is connected with the inner thread of the inner thread sleeve, a bearing sleeve is fixedly sleeved on the outer wall of the threaded rod, a connecting disc is fixedly sleeved on the outer wall of the bearing sleeve, telescopic rods are movably connected to two ends of the connecting disc, according to the requirement, the threaded rod is rotated, the threaded rod moves downwards, the bottom of the threaded rod extends into the inner thread sleeve, the threaded rod is in threaded connection with the inner thread sleeve, the threaded rod drives the connecting disc to move downwards, at the moment, a tension spring is stretched by the connecting disc, and the inner tension force is provided for the transition section body through the tension spring, so that the prestress of the transition section body is increased.

Inventors

  • ZHANG ZHIPING
  • REN XILONG
  • YAO YUNPENG
  • DONG HEWEI
  • QIN XING

Assignees

  • 河南龙源新能源发展有限公司

Dates

Publication Date
20260505
Application Date
20260203

Claims (10)

  1. 1. The utility model provides a prestressing force space pylon changeover portion structure, includes concrete body (1), changeover portion body (2) have been placed at the top of concrete body (1), the top fixedly connected with lower connecting piece (3) of changeover portion body (2), a serial communication port, recess (13) are seted up to the upper surface of concrete body (1), concrete body (1) are located recess (13) department and fixedly cup joint internal thread cover (14), the internal thread connection of internal thread cover (14) has threaded rod (6), the outer wall of threaded rod (6) is fixed cup joint bearing bush (17), the outer wall of bearing bush (17) is fixed cup joint connection pad (18), the equal swing joint in both ends of connection pad (18) has telescopic link (19), the other end swing joint of telescopic link (19) has fixed plate (11), the outer wall of telescopic link (19) cup joints extension spring (12), the one end of extension spring (12) and the outer wall fixed connection of connection pad (18), the other end of extension spring (12) and fixed connection (11).
  2. 2. The prestressed space tower conversion section structure according to claim 1, wherein a flange (15) is fixedly sleeved on the top outer wall of the internal thread sleeve (14), a first fixing screw (16) is sleeved on the outer wall of the flange (15), and the flange (15) is fixedly connected with the concrete body (1) through the first fixing screw (16); The outer wall of the fixed plate (11) is sleeved with a bolt (10), and the fixed plate (11) is fixedly connected with the transition section body (2) through the bolt (10).
  3. 3. The prestressed space tower conversion section structure according to claim 1, wherein a partition plate (7) is fixedly sleeved on the inner wall of the top of the transition section body (2), an external thread sleeve (8) is fixedly sleeved on the middle of the partition plate (7), and the external thread sleeve (8) is in threaded connection with the upper portion of the threaded rod (6).
  4. 4. The prestressed space tower conversion section structure according to claim 1, wherein said transition section body (2) comprises an outer steel plate (201), an inner steel plate (202), a concrete layer (203), said concrete layer (203) being poured between the outer steel plate (201) and the inner steel plate (202).
  5. 5. The prestressed space tower conversion section structure according to claim 4, wherein the two sides of the bottom of the transition section body (2) are fixedly connected with positioning blocks (21), the tops of the positioning blocks (21) extend into the concrete layer (203), positioning grooves (20) matched with the positioning blocks (21) are formed in the upper surface of the concrete body (1), second fixing screws (22) are inserted into the outer wall of the concrete body (1), threaded holes matched with the second fixing screws (22) are formed in the outer wall of the positioning blocks (21), and the other ends of the second fixing screws (22) are in threaded connection with the positioning blocks (21).
  6. 6. The prestressed space tower conversion section structure according to claim 4, wherein a lower connecting piece (3) is fixedly connected to the top of the transition section body (2), the inner side wall of the lower connecting piece (3) is fixedly welded with the inner steel plate (202), the outer side wall of the lower connecting piece (3) is fixedly welded with the outer steel plate (201), an upper connecting piece (4) is fixedly installed on the upper surface of the lower connecting piece (3), and a steel tower barrel (5) is fixedly connected to the upper surface of the upper connecting piece (4).
  7. 7. The prestressed space tower changeover portion structure according to claim 6, wherein the inside sliding sleeve of lower connecting piece (3) has pull rod (23), the fixed bayonet lock (30) that has cup jointed of outer wall of pull rod (23), movable groove (24) have been seted up to the inside of lower connecting piece (3), push ring (26) have been cup jointed to the outer wall of pull rod (23), push ring (26) are located the inside of movable groove (24), reset spring (25) have been cup jointed to the outer wall of pull rod (23), reset spring (25) are located the inside of movable groove (24), slot (31) have been seted up to the top outer wall of lower connecting piece (3), insert block (30) have been located in slot (31), the top outer wall of insert block (30) and the lower surface fixed connection of last connecting piece (4), lower surface of going up connecting piece (4) have seted up with bayonet lock (29) looks draw-in groove (32), insert block (29) are cup jointed each other through bayonet lock (32).
  8. 8. The prestressed space tower conversion section structure according to claim 7, wherein one end of the pull rod (23) extends to the outside of the lower connecting piece (3), a push plate (27) is fixedly connected to the extending end of the pull rod (23), a limiting pin (28) is movably inserted into the extending end of the pull rod (23), and the limiting pin (28) is located at the outside of the lower connecting piece (3).
  9. 9. The prestressed space tower conversion section structure according to claim 7, wherein the number of the clamping rods (29), the number of the inserting blocks (30), the number of the inserting grooves (31) and the number of the clamping grooves (32) are three, the number of the inserting blocks (30) and the number of the inserting grooves (31) are three, the number of the clamping rods (29) and the number of the clamping grooves (32) are L-shaped, and the sizes of the clamping rods (29) are matched.
  10. 10. The prestressed space tower conversion section structure according to claim 7, wherein the number of the movable grooves (24), the number of the return springs (25) and the number of the push rings (26) are two, the two return springs (25) are all positioned in the lower connecting piece (3), and the two return springs (25) are equidistantly arranged along the horizontal direction of the lower connecting piece (3).

Description

Prestressed space tower conversion section structure Technical Field The invention relates to the technical field of wind power towers, in particular to a prestressed space tower conversion section structure. Background With the rapid development of the wind power industry in China, the construction of the land wind power plant with better wind resources is gradually saturated, the wind power plant development is gradually developed to a low wind speed area in the future, the wind power plant is developed to a large single machine capacity, a large impeller diameter and Gao Datong, the lower part of the reinforced concrete tower adopts a reinforced concrete tower, the upper part of the reinforced concrete tower adopts a steel tower, the foundation adopts a disc-shaped reinforced concrete structure, and the three parts are connected through prestressed steel strands, so that the requirements on the height and the rigidity of the hub of the large wind power plant can be met, and the wind power plant is widely focused and popularized and applied in the wind power field. At present, in the installation of the tower, a transition section conversion mechanism is required to provide prestress, so that the installation connection of the concrete tower barrel and the steel tower barrel is facilitated. For example, publication No. CN216975124U discloses a transition section of a steel-concrete tower, a steel-concrete tower and a wind generating set, and describes that the steel-concrete tower comprises a concrete tower section and a steel tower section, the transition section of the steel-concrete tower comprises a first transition section, a first end part of the first transition section is connected to the concrete tower section, wherein the first transition section is provided with a reserved pore canal, the first end part of the first transition section is formed with an inclined chamfer, at least one of the inner diameter and the outer diameter of the first transition section is changed along with the axial length of the first transition section, and a second transition section is used for being connected between the second end part of the first transition section and the steel tower section, wherein the second transition section is provided with a first through hole, and wherein the device can save hoisting time, reduce hoisting cost and reduce risks caused by waiting for the steel tower section and installing the steel tower section. However, the following defects or problems still exist in combination with the prior art, namely, in the above patent, the device has a defect that the device does not have an adjusting function, is inconvenient for a user to adjust the angle stretching angle according to the needs, stretches and reinforces the transition part, and influences the pretightening force and the stability of the transition part. Disclosure of Invention The invention aims to solve the defects in the prior art and provides a prestressed space tower conversion section structure. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a prestressing force space pylon changeover portion structure, includes the concrete body, the changeover portion body has been placed at the top of concrete body, the top fixedly connected with lower connecting piece of changeover portion body, the upper surface of concrete body is seted up flutedly, the concrete body is located the fixed internal thread cover that has cup jointed of recess department, the inside threaded connection of internal thread cover has the threaded rod, the fixed bearing bush that has cup jointed of outer wall of threaded rod, the fixed connection pad that has cup jointed of outer wall of bearing bush, the equal swing joint in both ends of connection pad has the telescopic link, the other end swing joint of telescopic link has the fixed plate, fixed plate and changeover portion body fixed connection, the outer wall of telescopic link cup joints the extension spring, the one end of extension spring and the outer wall fixed connection of connection pad, the other end and the outer wall fixed connection of fixed plate of extension spring. Preferably, the top outer wall of the internal thread sleeve is fixedly sleeved with a flange, the outer wall of the flange is sleeved with a first fixing screw, and the flange is fixedly connected with the concrete body through the first fixing screw. Preferably, the outer wall of the fixed plate is sleeved with bolts, and the fixed plate is fixedly connected with the transition section body through the bolts. Preferably, the baffle has been cup jointed to the fixed cover in top inner wall of changeover portion body, the fixed cover of cup jointing in middle part of baffle has the external screw thread cover, the upper portion threaded connection of external screw thread cover and threaded rod. Preferably, the transition section body comprises an