Tooth hoop joint for connecting power transformation framework columns

Abstract

The utility model discloses a tooth hoop joint for connecting a power transformation framework column, which is used for fixedly connecting a first steel pipe column and a second steel pipe column, and comprises a first hoop and a second hoop which are respectively semicircular on the whole, the end of the first steel pipe column is fixed to the top end of the first tooth column head, the end of the second steel pipe column is fixed to the bottom end of the second tooth column head, and outer teeth are arranged on the outer surface of the first tooth column head and the outer surface of the second tooth column head respectively. Inner teeth matched with the outer teeth are arranged on the inner wall surfaces of the first clamp and the second clamp; one end of the first clamp and one end of the second clamp are hinged, and the other end of the first clamp and the other end of the second clamp are locked through a locking fastener so that the first clamp and the second clamp can be hooped on the tooth column head. Compared with a traditional flange plate connecting joint, the flange plate connecting joint has the advantages of being easy and convenient to construct and install, high in construction speed and convenient to operate.

Description

Technical Field

[0001] The utility model relates to the technical field of substation frames, in particular to a toothed sleeve hoop joint for connecting substation frame columns. Background Art

[0002] In outdoor substation projects of 220KV and below, due to the reasons of transportation and long length, multiple sections of steel pipes are usually welded directly into one long steel pipe, and then the two sections of long steel pipes are connected as one through flanges. For example, the "human" column structure mainly used in the steel pipe structure frame has a column height of 10 meters to 25 meters, and the steel pipes need to be assembled in sections on site.

[0003] The traditional assembly nodes currently used are flange connection nodes, that is, flanges are welded on each section of long steel pipe. Each node requires about 16 to 20 high-strength bolts with a diameter of M18 to M24, and the two flanges are fixed together with high-strength bolts. Because the traditional flange nodes are connected by bolts, the number of bolts at each node is about 16 to 20, and the installation clearance between the diameter of each bolt rod and the diameter of the bolt hole is 1.5 mm, which has a relatively high precision. If there is a slight deviation, the bolts will be difficult to put in place, resulting in a difficult installation process. Utility Model Content

[0004] The utility model aims to provide a toothed sleeve coupling for connecting a transformer frame column which is easy to install.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A toothed sleeve coupling for connecting a substation frame column, used for fixedly connecting a first steel pipe column and a second steel pipe column, comprising a first clamp and a second clamp, which are semicircular arcs as a whole;

[0007] The end of the first steel pipe column is fixed to the top of the first tooth column head, and the end of the second steel pipe column is fixed to the bottom of the second tooth column head. The outer surfaces of the first tooth column head and the second tooth column head are respectively provided with external teeth;

[0008] The inner wall surfaces of the first clamp and the second clamp are provided with internal teeth matching the external teeth;

[0009] One end of the first clamp and the second clamp are hinged, and the other end thereof is locked by a locking member so that the first clamp and the second clamp clamp the first tooth column head and the second tooth column head.

[0010] Furthermore, a first tooth column head is welded to the end of the first steel pipe column, and a second tooth column head is welded to the end of the second steel pipe column.

[0011] Furthermore, the locking member includes a plurality of bolts and nuts, and the other ends of the first clamp and the second clamp are provided with lugs with mounting holes respectively opened therein, and the bolts pass through the mounting holes of the first clamp and the second clamp and are connected to the nuts.

[0012] Furthermore, the two lugs are arranged with an interval therebetween.

[0013] Furthermore, one end of the first clamp and the second clamp are hinged via a rotating shaft.

[0014] In the above technical solution, the toothed sleeve coupling for connecting the substation frame column of the utility model has the following beneficial effects:

[0015] Compared with the currently used flange connection joints, the toothed sleeve coupling of the utility model has the advantages of simple construction and installation, fast construction speed, and easy operation. Because the traditional flange nodes are connected by bolts, the number of bolts at each node is about 16 to 20, and the installation gap between the diameter of each bolt rod and the diameter of the bolt hole is 1.5 mm, the precision is relatively high, and it is difficult to put the bolt in place if there is a slight deviation. The toothed sleeve coupling of the utility model only needs to use a locking piece to fasten the first clamp and the second clamp to the first tooth column head and the second tooth column head connected to the first steel pipe column and the second steel pipe column. The first clamp, the second clamp and the first tooth column head and the second tooth column head are firmly positioned by external teeth and internal teeth. Compared with the traditional flange connection joint, it is simple to operate and firmly positioned when used. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1 A schematic diagram of the use structure of the toothed sleeve coupling provided by the utility model;

[0018] Figure 2 This is a schematic diagram of the cross-sectional structure of the toothed sleeve coupling provided by the utility model.

[0019] Description of reference numerals:

[0020] A first clamp 1 , a second clamp 2 , a first tooth column head 3 , a second tooth column head 4 , a bolt 21 , and a rotating shaft 22 . DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0022] It should be noted that the terms "above", "one end", "upper", etc. used in this article indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description. Similar expressions are only for the purpose of illustration, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; in addition, the terms "one part", "two parts", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] like Figure 1-2 The toothed ferrule joint shown is used to fix and connect a first steel pipe column and a second steel pipe column, wherein the first steel pipe column and the second steel pipe column are in the same straight line. The toothed ferrule joint comprises a first clamp 1 and a second clamp 2 which are both semicircular arcs.

[0024] The end of the first steel pipe column is fixed to the top of the first tooth column head 3, and the end of the second steel pipe column is fixed to the bottom of the second tooth column head 4. The outer surfaces of the first tooth column head 3 and the second tooth column head 4 are respectively provided with external teeth. From top to bottom, the first steel pipe column, the first tooth column head 3, the second tooth column head 4 and the second steel pipe column are sequentially arranged.

[0025] Preferably, the first tooth column head 3 is fixed to the first steel pipe column by welding, and the second tooth column head 4 is fixed to the second steel pipe column by welding.

[0026] The inner wall surfaces of the first clamp 1 and the second clamp 2 are provided with internal teeth matching the external teeth on the first tooth column head 3 and the second tooth column head 4. The internal teeth and the external teeth can be spliced ​​together, so that the first clamp 1 and the second clamp 2 can be accurately positioned with the first steel pipe column and the second steel pipe column.

[0027] One end of the first clamp 1 and the second clamp 2 are hinged, and the other end is locked by a lock piece so that the first clamp 1 and the second clamp 2 are clamped on the tooth column head 3. The hinged connection method of the first clamp 1 and the second clamp 2 and the lock piece connection method can refer to the existing technology in the clamp field, such as the Chinese utility model patent "A clamp structure" with application number CN202222663640.3.

[0028] Preferably, the locking member includes a plurality of bolts 21 and nuts, and the other end of the first clamp 1 and the other end of the second clamp 2 are respectively provided with lugs, each lug has a mounting hole, and the bolt is connected to the nut after passing through the mounting hole of the first clamp 1 and the mounting hole of the second clamp 2. The bolt here has a tightening function, and the external teeth and the internal teeth improve the positioning accuracy of the mounting holes of the first clamp 1 and the second clamp 2, and the bolt can be quickly installed on the two lugs.

[0029] More preferably, the two lugs are spaced apart to reserve a bolt force application distance to facilitate adjustment of the tightening degree.

[0030] Preferably, one end of the first clamp 1 and the second clamp 2 are hinged by a rotating shaft 22. The first clamp 1 and the second clamp 2 with two semicircular rotating shafts are locked to the first tooth column head 3 and the second tooth column head 4 to form a steel pipe column joint, and inner teeth are arranged on the inner side of the first clamp 1 and the second clamp 2, and outer teeth are also arranged at the steel pipe column joint. The inner teeth are engaged with the outer teeth of the column. After the first clamp 1 and the second clamp 2 are locked to the steel pipe column joint, bolts can be used to tighten them to complete the connection.

[0031] The utility model changes the traditional flange connection method and adopts a "forced toothed collar" connection method. A toothed collar is used at a node to fasten a first clamp 1 and a second clamp 2 to a steel pipe column connection joint to achieve the purpose of connection.

[0032] The inner teeth of the first clamp 1 and the second clamp 2 and the outer teeth of the tooth column head 3 need to be manufactured in a processing plant, and the first tooth column head 3 and the second tooth column head 4 need to be manufactured in a steel plant and welded to the steel pipe column cut and assembled on site. The first clamp 1 and the second clamp 2 fasten and force the first tooth column head 3 and the second tooth column head 4 arranged up and down to complete the node connection. The length of the first clamp 1 and the second clamp 2 and the number of bolts used in the fastener should be determined according to the force calculation of the steel pipe column.

[0033] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A toothed sleeve joint for connecting a substation frame column, used to fix a first steel pipe column and a second steel pipe column, characterized in that: It comprises a first clamp (1) and a second clamp (2) which are both semicircular arcs; The end of the first steel pipe column is fixed to the top end of the first tooth column head (3), and the end of the second steel pipe column is fixed to the bottom end of the second tooth column head (4), and the outer surfaces of the first tooth column head (3) and the second tooth column head (4) are respectively provided with external teeth; The inner wall surfaces of the first clamp (1) and the second clamp (2) are provided with internal teeth matching the external teeth; One end of the first clamp (1) and the second clamp (2) are hinged, and the other end thereof is locked by a locking member so that the first clamp (1) and the second clamp (2) clamp the first tooth column head (3) and the second tooth column head (4).

2. A toothed ferrule joint for connecting a substation frame column according to claim 1, characterized in that: A first tooth column head (3) is welded to the end of the first steel pipe column, and a second tooth column head (4) is welded to the end of the second steel pipe column.

3. A toothed ferrule joint for connecting a substation frame column according to claim 1, characterized in that: The locking member comprises a plurality of bolts (21) and nuts, the other ends of the first clamp (1) and the second clamp (2) are respectively provided with lugs with mounting holes, and the bolts (21) are connected to the nuts after passing through the mounting holes of the first clamp (1) and the second clamp (2).

4. A toothed sleeve coupling for connecting a substation frame column according to claim 3, characterized in that: The two lugs are arranged at intervals.

5. The toothed ferrule joint for connecting a substation frame column according to claim 1, characterized in that: One end of the first clamp (1) and the second clamp (2) are hinged via a rotating shaft (22).

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