Auxiliary device for installing embedded bolt of steam turbine

Abstract

The utility model discloses a steam turbine embedded bolt installation auxiliary device which aims at solving the problems that in a traditional embedded bolt installation method, positioning is not accurate, and stability is poor. The device comprises a support and an adjustable clamp, and the support is fixed to the horizontal plane of a pre-buried area of the pre-buried bolt and provides stable support for the adjustable clamp; the adjustable clamp is mounted on the support and comprises a mounting seat, an adjusting part and a clamping part, the mounting seat is fixed to the top of the support, the adjusting part is used for accurately adjusting the position of the embedded bolt, and the clamping part is used for firmly clamping the embedded bolt and preventing the embedded bolt from moving in the concrete pouring process. According to the utility model, the design position is determined by utilizing advanced measuring equipment, and the precise positioning and stable clamping functions of the adjustable clamp are combined, so that the quick and accurate installation of the embedded bolt is realized, and the construction efficiency and the installation quality are improved.

Description

Technical Field

[0001] This utility model relates to the field of steam turbine installation technology, and in particular to an auxiliary device for installing pre-embedded bolts in steam turbines. Background Technology

[0002] In steam turbine installation projects, the precise positioning and secure installation of embedded bolts are crucial for ensuring the normal operation of subsequent equipment. Traditional methods of installing embedded bolts often rely on manual operation, which is not only labor-intensive and inefficient, but also makes it difficult to guarantee the precise position and verticality of the embedded bolts. Especially in large steam turbine installation projects, the large number of embedded bolts of varying sizes and the complex environment of the embedding area further increase the installation difficulty and the risk of errors.

[0003] Specifically, traditional methods lack effective auxiliary positioning and fixing devices, making the pre-embedded bolts susceptible to interference from the operator's skill level and environmental factors during installation, leading to problems such as positional deviation and tilting. If these problems are not corrected in time before concrete pouring, they will directly affect the installation accuracy and operational stability of the steam turbine, and may even cause equipment failure, increasing later maintenance costs and safety risks. Utility Model Content

[0004] The purpose of this utility model is to provide an auxiliary device for the installation of pre-embedded bolts in steam turbines, so as to solve the technical problem that pre-embedded bolts are prone to displacement and tilting in traditional pre-embedded bolt installation methods.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an auxiliary device for installing pre-embedded bolts in a steam turbine, the auxiliary device for installing pre-embedded bolts in a steam turbine comprising:

[0006] The bracket is fixed to the horizontal surface of the pre-embedded bolt area;

[0007] An adjustable clamp is mounted on the bracket. The adjustable clamp includes a mounting base mounted on the top of the bracket, an adjustment part on the mounting base for adjusting the position of the pre-embedded bolt, and a clamping part on the adjustment part for clamping and fixing the pre-embedded bolt.

[0008] In one embodiment, the support is a truss structure.

[0009] In one embodiment, the mounting base includes:

[0010] A frame, on which the adjustment part is mounted;

[0011] Several mounting legs are provided at the bottom of the frame. The bottom of each mounting leg is provided with an arc-shaped groove, through which the mounting leg is clamped and fixed to the top of the bracket.

[0012] In one embodiment, the adjustment unit includes:

[0013] A guide rod, which is fixed to the mounting base, and the axis of the guide rod is parallel to the horizontal plane;

[0014] A first adjusting screw is rotatably mounted on the mounting base and is parallel to the guide rod.

[0015] A lateral adjustment platform is slidably mounted on the guide rod and threadedly engaged with the first adjustment screw. The lateral adjustment platform is provided with a sliding groove, the length direction of which is parallel to the horizontal plane and perpendicular to the guide rod.

[0016] The second adjusting screw is rotatably mounted on the transverse adjusting platform and is parallel to the length direction of the slide groove.

[0017] A longitudinal adjustment platform is slidably fitted within a groove of a transverse adjustment platform, and the longitudinal adjustment platform is threadedly fitted with a second adjusting screw. The clamping part is fixed to the longitudinal adjustment platform.

[0018] In one embodiment, the ends of the first adjusting screw and the second adjusting screw are provided with handles.

[0019] In one embodiment, the clamping portion includes:

[0020] A threaded sleeve, wherein the outer surface of the threaded sleeve is provided with threads, the central axis of the threaded sleeve is fixed to the adjusting part perpendicular to the horizontal plane, and the top and bottom of the threaded sleeve are provided with three slots, and the included angle between the three slots is the same.

[0021] A clamping wedge is provided in each of the slots. The root of the clamping wedge is flexibly connected to the root of the slot. The clamping wedge has a wedge-shaped structure with the thickness gradually increasing from the root to the end.

[0022] The upper and lower locking nuts are threaded onto the threaded sleeve. When the upper locking nut is rotated upwards for adjustment or the lower locking nut is rotated downwards for adjustment, the upper and lower locking nuts press against the clamping wedge, causing the clamping wedge to move closer to the center line area of ​​the threaded sleeve and clamp the pre-embedded bolt located inside the threaded sleeve.

[0023] In one embodiment, the inner surface of the clamping wedge is provided with an elastic buffer layer.

[0024] The above-described technical solutions in the embodiments of this utility model have at least the following technical effects or advantages:

[0025] This utility model provides an auxiliary device for installing pre-embedded bolts in a steam turbine. An adjustable clamp is fixed to the pre-embedded bolt area using a bracket. Combined with advanced measuring equipment such as a laser rangefinder and total station, the device can conveniently and quickly fix the pre-embedded bolts in the designed position, significantly improving the installation accuracy. Furthermore, the clamping part of the adjustable clamp firmly holds the pre-embedded bolts, preventing displacement or tilting during concrete pouring, ensuring the stability and verticality of the pre-embedded bolts. In addition, the adjustable part allows the position of the pre-embedded bolts to be adjusted according to actual construction needs, improving installation flexibility and adaptability, and reducing rework rates due to positional deviations. By improving the installation accuracy and stability of the pre-embedded bolts, it reduces equipment failures and maintenance costs caused by pre-embedded bolt issues in the later stages. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of the turbine pre-embedded bolt installation auxiliary device provided in the embodiment of this utility model;

[0028] Figure 2 A schematic diagram of the structure of the bracket provided in an embodiment of this utility model;

[0029] Figure 3 A schematic diagram of the mounting base and adjustment part provided in the embodiment of this utility model;

[0030] Figure 4 A schematic diagram of the clamping part provided in an embodiment of this utility model;

[0031] Figure 5 This is a schematic diagram of the clamping part provided in an embodiment of the present invention after clamping the pre-embedded bolt.

[0032] The labels for the various figures are as follows:

[0033] 1. Bracket; 2. Adjustable clamp; 3. Embedded bolt; 21. Mounting base; 22. Adjustment part; 23. Clamping part; 211. Frame; 212. Mounting leg; 221. Guide rod; 222. First adjusting screw; 223. Longitudinal adjustment platform; 224. Second adjusting screw; 225. Lateral adjustment platform; 226. Handle; 231. Threaded sleeve; 232. Clamping wedge; 233. Upper locking nut; 234. Lower locking nut; 2121. Arc-shaped groove; 2231. Slide groove; 2321. Elastic buffer layer. Detailed Implementation

[0034] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0035] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0038] Please see Figure 1This application provides an auxiliary device for installing pre-embedded bolts 3 in a steam turbine, including a bracket 1 and an adjustable clamp 2. The bracket 1 is fixed to the horizontal surface of the pre-embedded area of ​​the pre-embedded bolt 3. The adjustable clamp 2 is mounted on the bracket 1 and includes a mounting base 21 mounted on the top of the bracket 1, an adjustment part 22 on the mounting base 21 for adjusting the position of the pre-embedded bolt 3, and a clamping part 23 on the adjustment part 22 for clamping and fixing the pre-embedded bolt 3.

[0039] This utility model uses a bracket 1 to fix an adjustable clamp 2 to the pre-embedded area of ​​the pre-embedded bolt 3, and then uses a clamping part 23 to fix the pre-embedded bolt 3. The position of the pre-embedded bolt 3 can be adjusted by the adjusting part 22, so as to conveniently and quickly fix the pre-embedded bolt 3 in the designed position (the specific designed position is measured by advanced measuring equipment such as laser rangefinder and total station according to construction requirements), thereby maintaining the stability of the pre-embedded bolt 3 during the concrete pouring process.

[0040] In one embodiment, the support 1 is a truss structure. Compared with the traditional simple frame type fixed support 1, the truss structure support 1 in this embodiment has good mechanical properties and can more effectively distribute and bear external forces.

[0041] like Figure 1-3 As shown in one embodiment, the mounting base 21 includes a frame 211 and a plurality of mounting legs 212. An adjustment part 22 is mounted on the frame 211; the mounting legs 212 are disposed at the bottom of the frame 211, and the bottom of the mounting legs 212 is provided with an arc-shaped groove 2121, and the mounting legs 212 are clamped and fixed to the top of the bracket 1 through the arc-shaped groove 2121.

[0042] When pouring concrete, a layered pouring method can be adopted, with the thickness of each layer controlled between 300-500mm. During the pouring of each layer of concrete, vibration should be carried out in a certain order, such as starting from around the pre-embedded bolt 3 and vibrating towards the edge. The vibrator should avoid direct contact with the pre-embedded bolt 3. Use appropriate vibration equipment, such as an immersion vibrator or a plate vibrator, and control the vibration time to 15-30 seconds, until the concrete surface no longer significantly sinks, no more air bubbles appear, and mortar appears on the surface. After the bottom of the pre-embedded bolt 3 has been poured and solidified, the clamping part 23 can be loosened, and the adjustable clamp 2 can be removed from the bracket 1 (the specific removal method can be to apply an upward force to the frame 211, causing the arc-shaped slot 2121 on the mounting leg 212 to disengage from the bracket 1, and then remove the adjustable clamp 2 from the bracket 1), and then proceed with the next layer of concrete pouring. The removed adjustable clamp 2 can be reused for auxiliary fixing during the construction of the next pre-embedded bolt 3.

[0043] In one embodiment, the adjustment unit 22 includes a guide rod 221, a first adjustment screw 222, a lateral adjustment platform 225, a second adjustment screw 224, and a longitudinal adjustment platform 223. The guide rod 221 is fixed to the mounting base 21, and the axis of the guide rod 221 is parallel to the horizontal plane. The first adjusting screw 222 is rotatably mounted on the mounting base 21 and is parallel to the guide rod 221. The transverse adjusting platform 225 is slidably mounted on the guide rod 221 and is threadedly engaged with the first adjusting screw 222. The transverse adjusting platform 225 is provided with a sliding groove 2231, the length direction of which is parallel to the horizontal plane and perpendicular to the guide rod 221. The second adjusting screw 224 is rotatably mounted on the transverse adjusting platform 225 and is parallel to the length direction of the sliding groove 2231. The longitudinal adjusting platform 223 is slidably engaged in the sliding groove 2231 of the transverse adjusting platform 225 and is threadedly engaged with the second adjusting screw 224. The clamping part 23 is fixed to the longitudinal adjusting platform 223.

[0044] like Figure 3 As shown, when it is necessary to adjust the horizontal position of the pre-embedded bolt 3 clamped on the clamping part 23 laterally, simply rotate the second adjusting screw 224 to make the lateral adjusting platform 225 slide along the axis of the slide groove 2231 / second adjusting screw 224, thereby causing the clamping part 23 fixed on the lateral adjusting platform 225 to move laterally. Since the length direction of the slide groove 2231 is parallel to the horizontal plane, the pre-embedded bolt 3 fixed on the clamping part 23 moves laterally, thereby adjusting the horizontal position of the pre-embedded bolt 3. Similarly, when it is necessary to adjust the vertical position... When the pre-embedded bolt 3 held on the clamping part 23 is in a horizontal position, it is only necessary to rotate the first adjusting screw 222 to make the longitudinal adjusting platform 223 move along the axis of the guide rod 221 / first adjusting screw 222, and the axis of the guide rod 221 is parallel to the horizontal plane. This causes the transverse adjusting platform 225, the clamping part 23, and the pre-embedded bolt 3 fixed on the clamping part 23 to move horizontally and longitudinally, thereby adjusting the horizontal position of the pre-embedded bolt 3 longitudinally. The screw-slider structure adjustment position has high accuracy and stability. Therefore, the adjusting part 22 in this embodiment can conveniently and accurately adjust the horizontal position of the pre-embedded bolt 3, so as to facilitate the calibration and adjustment of the position of the pre-embedded bolt 3 during construction.

[0045] In one embodiment, the ends of the first adjusting screw 222 and the second adjusting screw 224 are provided with handles 226. By providing handles 226, the first adjusting screw 222 and the second adjusting screw 224 can be rotated, thereby facilitating the adjustment of the horizontal position of the embedded bolt 3.

[0046] In one embodiment, the clamping part 23 includes a threaded sleeve 231, a clamping wedge 232, an upper locking nut 233, and a lower locking nut 234. The outer surface of the threaded sleeve 231 is threaded, and the central axis of the threaded sleeve 231 is fixed to the adjusting part 22 perpendicular to the horizontal plane. The top and bottom of the threaded sleeve 231 each have three slots, and the included angle between the three slots is the same. The clamping wedge 232 is disposed within each slot, and the root of the clamping wedge 232 is flexibly and bendably connected to the root of the slot. The clamping wedge 232 has a wedge-shaped structure with its thickness gradually increasing from the root to the end. The upper locking nut 233 and the lower locking nut 234 are threadedly fitted onto the threaded sleeve 231. When the upper locking nut 233 is rotated upwards for adjustment and the lower locking nut 234 is rotated downwards for adjustment, the upper locking nut 233 and the lower locking nut 234 press against the clamping wedge 232, causing the clamping wedge 232 to move closer to the center line area of ​​the threaded sleeve 231 and clamp the pre-embedded bolt 3 located in the threaded sleeve 231.

[0047] like Figure 4-5 As shown, when it is necessary to clamp and fix the pre-embedded bolt 3, simply insert the pre-embedded bolt 3 into the threaded sleeve 231, adjust the pre-embedded bolt 3 to the set height, and then tighten the upper locking nut 233 upwards and the lower locking nut 234 downwards. This causes the clamping wedge 232 to bend inwards under the pressure of the upper locking nut 233 and the lower locking nut 234, causing the end of the clamping wedge 232 to converge towards the pre-embedded bolt 3 until the clamping wedge 232 clamps and fixes the pre-embedded bolt 3. Figure 5 As shown.

[0048] Since the centerline of the threaded sleeve 231 is perpendicular to the horizontal plane, and the three identical clamping wedges 232 are set in three slots with the same included angle, when the upper locking nut 233 / lower locking nut 234 squeezes the clamping wedges 232, the three clamping wedges 232 will converge towards the centerline of the threaded sleeve 231 in sync, so that the centerline of the pre-embedded bolt 3 coincides with the centerline of the threaded sleeve 231, thus making the pre-embedded bolt 3 perpendicular to the horizontal plane.

[0049] In one embodiment, an elastic buffer layer 2321 is provided on the inner side of the clamping wedge 232. In order to avoid damage to the embedded bolt 3, an elastic buffer layer 2321 is provided on the inner side (clamping surface) of the clamping wedge 232. Specifically, a soft material such as rubber or polyurethane can be used. The elastic buffer layer 2321 can deform to increase the effective clamping surface size of the clamping wedge 232, thereby improving the clamping stability. The elastic buffer layer 2321 also has a good buffering effect to protect the embedded bolt 3 and avoid damage to the surface of the embedded bolt 3.

[0050] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A steam turbine pre-bolt installation aid, characterized by, The turbine pre-embedded bolt installation auxiliary device includes: The bracket is fixed to the horizontal surface of the pre-embedded bolt area; An adjustable clamp is mounted on the bracket. The adjustable clamp includes a mounting base mounted on the top of the bracket, an adjustment part on the mounting base for adjusting the position of the pre-embedded bolt, and a clamping part on the adjustment part for clamping and fixing the pre-embedded bolt. The clamping part includes: A threaded sleeve, wherein the outer surface of the threaded sleeve is provided with threads, the central axis of the threaded sleeve is fixed to the adjusting part perpendicular to the horizontal plane, and the top and bottom of the threaded sleeve are provided with three slots, and the included angle between the three slots is the same. A clamping wedge is provided in each of the slots. The root of the clamping wedge is flexibly connected to the root of the slot. The clamping wedge has a wedge-shaped structure with the thickness gradually increasing from the root to the end. The upper and lower locking nuts are threaded onto the threaded sleeve. When the upper locking nut is rotated upwards for adjustment or the lower locking nut is rotated downwards for adjustment, the upper and lower locking nuts press against the clamping wedge, causing the clamping wedge to move closer to the center line area of ​​the threaded sleeve and clamp the pre-embedded bolt located inside the threaded sleeve.

2. The auxiliary device for installing pre-embedded bolts in a steam turbine according to claim 1, characterized in that: The support structure is a truss structure.

3. A pre-bolt installation aid for a steam turbine as defined in claim 1, wherein The mounting base includes: A frame, on which the adjustment part is mounted; Several mounting legs are provided at the bottom of the frame. The bottom of each mounting leg is provided with an arc-shaped groove, through which the mounting leg is clamped and fixed to the top of the bracket.

4. A pre-bolt installation aid for a steam turbine as defined in claim 1, wherein The adjustment unit includes: A guide rod, which is fixed to the mounting base, and the axis of the guide rod is parallel to the horizontal plane; A first adjusting screw is rotatably mounted on the mounting base and is parallel to the guide rod. A lateral adjustment platform is slidably mounted on the guide rod and threadedly engaged with the first adjustment screw. The lateral adjustment platform is provided with a sliding groove, the length direction of which is parallel to the horizontal plane and perpendicular to the guide rod. The second adjusting screw is rotatably mounted on the transverse adjusting platform and is parallel to the length direction of the slide groove. A longitudinal adjustment platform is slidably fitted within a groove of a transverse adjustment platform, and the longitudinal adjustment platform is threadedly fitted with a second adjusting screw. The clamping part is fixed to the longitudinal adjustment platform.

5. The auxiliary device for installing pre-embedded bolts in a steam turbine according to claim 4, characterized in that: The first adjusting screw and the second adjusting screw are provided with handles at their ends.

6. The auxiliary device for installing pre-embedded bolts in a steam turbine according to claim 1, characterized in that: An elastic buffer layer is provided on the inner side of the clamping wedge.

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