Bolt auxiliary mounting tool for water turbine seat ring

Abstract

The utility model relates to the technical field of water turbine installation, in particular to a bolt auxiliary installation tool for a water turbine seat ring, which comprises a support, a power piece and an ejector pin, the power piece is fixedly connected with the support, the output end of the power piece is rotatably connected with the ejector pin, and the power piece is used for providing power for the ejector pin to get close to or away from a bolt. When the bolt is installed on the water turbine seat ring, the ejector pin abuts against the end portion of the bolt, so that the bolt is axially fixed, the ejector pin capable of rotating in the circumferential direction is additionally installed on the power piece, after the ejector pin abuts against the bolt, the bolt is axially fixed and can also rotate in the circumferential direction, manual lifting is avoided, and the installation efficiency of the bolt is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of water turbine installation, in particular to a bolt auxiliary installation tool for a water turbine seat ring. Background Art

[0002] The turbine seat ring is an embedded component. When its level and center are adjusted to the standard, it needs to be fixed to the concrete foundation by bolts, and then the second phase concrete is poured to achieve permanent fixation. The diameter of the bolts between the seat ring and the foundation is above φ80mm, the length is generally 3-5m, and the mass exceeds 100Kg. The bolts penetrate the pre-buried casing of the foundation and are screwed into the screw holes on the seat ring. Because the bolts are long and heavy, the space under the foundation is small and not suitable for multiple people to work, and the bolts are installed in reverse. These factors make it difficult to accurately screw the bolts into the threaded holes on the seat ring by manpower alone. In view of this special situation, a set of auxiliary installation tools is needed to solve this installation problem, so as to ensure the installation quality, reduce labor costs and shorten the construction period. Utility Model Content

[0003] The technical problem to be solved by the utility model is: in order to overcome the problems in the prior art that the handle bolts are long and heavy, the space below the foundation is narrow and not suitable for multiple people to work, and the bolts are installed with the handles reversed, these factors make it difficult to accurately screw the handle bolts into the threaded holes on the seat ring relying solely on manpower, a bolt auxiliary installation tool for the turbine seat ring is provided.

[0004] The technical solution adopted by the utility model to solve the technical problem is: a bolt-assisted installation tool for a turbine seat ring, comprising a bracket, a power piece and a thimble, the power piece and the bracket are fixedly connected, the output end of the power piece and the thimble are rotatably connected, the power piece is used to provide power for the thimble to approach or move away from the bolt, when the turbine seat ring is installed with a bolt, the thimble presses against the end of the bolt, so that the bolt is axially fixed, and by adding a thimble that can rotate circumferentially to the power piece, the bolt is axially fixed and can also rotate circumferentially after it presses against the bolt, thereby avoiding human lifting and improving the installation efficiency of the bolt.

[0005] In order to solve the problem of how to make the power part and the ejector pin rotationally connected, the auxiliary installation tool further includes a fixed seat, a rotating part and a support plate. The fixed seat is fixedly connected to the output end of the power part. A fixed groove for accommodating the rotating part is provided on the top surface of the fixed seat. The rotating part is installed in the fixed groove. The support plate is fixedly connected to the ejector pin. The support plate is installed in the inner ring of the rotating part so that the ejector pin can rotate along its circumferential direction.

[0006] It further comprises a rotating member having two ends capable of rotating relatively, wherein one end of the rotating member is fixedly connected to the fixing groove, and the other end of the rotating member is fixedly connected to the supporting plate.

[0007] The invention further comprises a rotating part which is a bearing.

[0008] The power part further comprises a jack.

[0009] In order to solve the problem of limited bolt size and insufficient ejector strength, the ejector further includes an end away from the power piece having a contraction from bottom to top, and the end surface of the ejector away from the power piece is a horizontal surface.

[0010] The beneficial effect of the utility model is that the utility model provides a bolt-assisted installation tool for a turbine seat ring. By adding a thimble that can rotate circumferentially on the power part, the bolt is axially fixed and can also rotate circumferentially after it pushes against the bolt, thereby avoiding manual lifting and improving the installation efficiency of the bolt. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0012] Figure 1 It is a structural schematic diagram of the installation tool of the utility model;

[0013] Figure 2 It is a schematic diagram of the support structure of the installation tool of the utility model;

[0014] Figure 3 It is a schematic diagram of the use of the installation tool of the utility model.

[0015] In the figure: 1, bracket, 2, power part, 3, ejector pin, 4, fixed seat, 41, fixed groove, 5, rotating part, 6, support plate, 7, bolt, 8, seat ring. DETAILED DESCRIPTION

[0016] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0017] like Figure 1 This is a structural schematic diagram of the utility model, a bolt-assisted installation tool for a turbine seat ring, comprising a bracket 1, a power part 2 and a thimble 3.

[0018] like Figure 1 As shown, the end of the ejector pin 3 away from the power member 2 has a guide surface that contracts inward from bottom to top, and the end face of the ejector pin 3 away from the power member 2 is a plane. The end face is a plane so that it can be aligned with the end face of the bolt 7. The main body of the ejector pin 3 is cylindrical, which can improve its overall bearing strength and avoid its breakage. The ejector pin 3 can rotate relative to the power member 2, and while the ejector pin 3 abuts against the bolt 7, it does not hinder its circumferential rotation, so that the bolt 7 can be screwed into the seat ring 8 of the turbine.

[0019] like Figure 1 As shown, the power member 2 is a jack, and the power member 2 can also be a hydraulic cylinder. The power member 2 and the bracket 1 are fixedly connected. The bracket 1 is an I-shaped structure, which can solve the problem that the power member 2 is limited by the stroke and cannot resist the bolt 7. The bracket 1 can provide a support base for the power member 2. The output end of the power member 2 is rotatably connected with the thimble 3. The power member 2 is used to provide power for the thimble 3 to move closer to or away from the bolt. When the turbine seat ring 8 is installed to close the bolt 7, the thimble 3 resists the end of the bolt 7, so that the bolt 7 is axially fixed.

[0020] like Figure 1 As shown, the auxiliary installation tool includes a fixed seat 4, a rotating member 5 and a support plate 6. The fixed seat 4 is fixedly connected to the output end of the power member 2. A fixed groove 41 for accommodating the rotating member 5 is provided on the top surface of the fixed seat 4. The rotating member 5 is installed in the fixed groove 41. The support plate 6 is fixedly connected to the ejector pin 3. The support plate 6 is installed in the inner ring of the rotating member 5 so that the ejector pin 3 can rotate along its circumferential direction. The support plate 6 provides an installation position for the ejector pin 3 and can connect the ejector pin 3 and the rotating member 5. The fixed seat 4 provides an installation position for the rotating member 5 so that the rotating member 5 and the fixed seat 4 are connected.

[0021] like Figure 1 As shown, the rotating member 5 is a bearing, and the rotating member 5 can also be a turntable. The rotating member 5 has two ends that can rotate relative to each other, one end of the rotating member 5 is fixedly connected to the fixing groove 41, and the other end of the rotating member 5 is fixedly connected to the support plate 6.

[0022] Working principle: Figure 3 As shown, a threaded hole for installing the bolt 7 is opened on the seat ring 8 of the turbine, and the auxiliary installation tool is placed under the threaded hole of the seat ring 8, and then the bolt 7 is placed between the seat ring 8 and the auxiliary installation tool so that the bolt 7 and the seat ring 8 are coaxial, and then the power part 2 is started to make its output end rise, that is, the ejector pin 3 is driven to rise until the ejector pin 3 is against the end face of the bolt 7, thereby providing support for the bolt 7, and then the bolt 7 is rotated with a tool so that it is screwed into the threaded hole of the seat ring 8.

[0023] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A bolt-assisted installation tool for a turbine seat ring, characterized in that: The invention comprises a bracket (1), a power piece (2) and a thimble (3); the power piece (2) and the bracket (1) are fixedly connected; the output end of the power piece (2) and the thimble (3) are rotatably connected; the power piece (2) is used to provide power for the thimble (3) to approach or move away from a bolt; when the turbine seat ring is installing a bolt, the thimble (3) abuts against the end of the bolt, so that the bolt is axially fixed.

2. A bolt-assisted installation tool for a turbine seat ring according to claim 1, characterized in that: The auxiliary installation tool comprises a fixed seat (4), a rotating member (5) and a support plate (6); the fixed seat (4) is fixedly connected to the output end of the power member (2); a fixed groove (41) for accommodating the rotating member (5) is provided on the top surface of the fixed seat (4); the rotating member (5) is installed in the fixed groove (41); the support plate (6) is fixedly connected to the ejector pin (3); the support plate (6) is installed in the inner ring of the rotating member (5) so that the ejector pin (3) can rotate along its circumferential direction.

3. A bolt-assisted installation tool for a turbine seat ring as claimed in claim 2, characterized in that: The rotating member (5) has two ends that can rotate relative to each other, wherein one end of the rotating member (5) is fixedly connected to the fixing groove (41), and the other end of the rotating member (5) is fixedly connected to the supporting plate (6).

4. A bolt-assisted installation tool for a turbine seat ring as claimed in claim 3, characterized in that: The rotating member (5) is a bearing.

5. A bolt-assisted installation tool for a turbine seat ring according to claim 1, characterized in that: The power component (2) is a jack.

6. A bolt-assisted installation tool for a turbine seat ring according to claim 1, characterized in that: The end of the ejector pin (3) away from the power member (2) is contracted inwardly from bottom to top, and the end surface of the ejector pin (3) away from the power member (2) is a horizontal surface.

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