A riveting tool for spiral tie assembly of condenser

Abstract

The present invention discloses a riveting tool for a spiral tie assembly of a condenser, comprising a tool body, having a top wall, a bottom wall and two opposite side walls; a tie slot adapted to the spiral tie, which penetrates the tool body from one side wall of the tool body and extends to the other opposite side wall; a first groove adapted to the gasket, which is arranged on one of the two opposite side walls of the tool body, the first groove extends along the upper and lower sides of the tie slot and the two are connected, and the width of the first groove is smaller than the width of the tie slot; a second groove adapted to the rotating shaft, which is arranged on the same side wall of the tool body as the first groove, the second groove extends along the upper and lower sides of the first groove and the two are connected, and the width of the second groove is smaller than the width of the first groove; a punching hole extending downward and communicating with the tie slot, the first groove and the second groove is arranged on the top wall of the tool body, and the shape and size of the punching hole are configured to allow rivets to be inserted and to be adapted to the punch of a riveting machine.

Description

Technical Field

[0001] The invention relates to the technical field of condenser anti-scaling and energy-saving, and in particular to a riveting tool for a spiral tie assembly of a condenser. Background Art

[0002] As the main auxiliary equipment of the steam turbine in a thermal power plant, the condenser needs to clean and descale the heat exchange tubes during use to maintain the cleanliness factor of the heat exchange tubes and enhance the heat exchange effect.

[0003] The spiral bond assembly is usually used to clean the heat exchange tube of the condenser. The spiral bond assembly is installed in the heat exchange tube of the condenser. When the turbine is running, a large amount of cooling water flows in the heat exchange tube. The flow of water drives the spiral bond assembly to rotate in the heat exchange tube for a long time. The rotating spiral bond assembly changes the flow state of the water in the heat exchange tube and reduces the laminar edge layer. The water in the heat exchange tube forms a vortex under the rotation of the spiral bond assembly, which disturbs the laminar edge layer, so that the calcium carbonate scale cannot be retained on the tube wall and is taken out of the heat exchange tube, which plays a cleaning role in keeping the inner wall of the heat exchange tube clean and scale-free for a long time.

[0004] The spiral tie assembly is mainly composed of three parts: a spiral tie, a rotating shaft and a pair of gaskets. The rotating shaft has two opposite ends, one of which is a connecting part connected to the spiral tie, and the other end is a transmission part connected to the rotating power assembly. The connecting part of the rotating shaft is provided with a clamping gap extending along the axial direction. A pair of gaskets are arranged on both sides of the spiral tie and assembled together with the spiral tie in the clamping gap. Through holes are opened on the connecting part of the rotating shaft and the gasket, and the rotating shaft, gasket and spiral tie are riveted and fixed by rivets, thereby completing the assembly process of the spiral tie assembly. In this process, the spiral tie, gasket and rotating shaft need to be manually riveted. Since the spiral tie is a special-shaped structure, it is not easy to fix the above-mentioned components uniformly by manual riveting, and riveting is time-consuming and labor-intensive. Summary of the invention

[0005] In order to solve the above technical problems, an object of the present invention is to provide a more efficient and time-saving and labor-saving riveting tool for a spiral tie assembly of a condenser.

[0006] To this end, the present invention provides a riveting tool for a spiral tie assembly of a condenser, characterized in that it includes:

[0007] A tooling body having a top wall, a bottom wall and two opposite side walls;

[0008] A tie slot, which passes through the tooling body from one side wall of the tooling body and extends to the other opposite side wall, and the shape and size of the tie slot are configured to be compatible with the spiral tie of the spiral tie assembly;

[0009] A first groove is provided on one of the two opposite side walls of the tooling body, the first groove extends along the upper and lower sides of the tie slot and the two are connected, the width of the first groove is smaller than the width of the tie slot, and the shape and size of the first groove are configured to be compatible with the gasket of the spiral tie assembly;

[0010] A second groove is arranged on the same side wall of the tooling body as the first groove, the second groove extends along the upper and lower sides of the first groove and the two are connected, the width of the second groove is smaller than the width of the first groove, and the shape and size of the second groove are configured to be compatible with the rotating shaft of the spiral tie assembly;

[0011] The punching hole is arranged on the top wall of the tooling body and extends downward and is connected with the tie slot, the first groove and the second groove. The shape and size of the punching hole are configured to allow rivets to be inserted and to be compatible with the punch of the riveting machine.

[0012] A tie slot is set through one side wall of the tooling body to the other side wall thereof, and a first groove and a second groove are set on one of the opposite side walls of the tooling body, and the first groove extends along the upper and lower sides of the tie slot, and the second groove extends along the upper and lower sides of the first groove, and a punching hole is set on one side of the top wall of the tooling body. The structure of the present invention can be used to insert the spiral tie into the tie slot, a pair of gaskets are respectively inserted into the upper and lower halves of the first groove, the rotating shaft is inserted into the second groove, and the rivet is inserted from the punching hole. The punch of the riveting machine is used to punch down the rivet in the punching hole, so that the gasket, spiral tie and rotating shaft of the spiral tie assembly are riveted and fixed at one time, making the riveting assembly of the spiral tie assembly more efficient and time-saving and labor-saving.

[0013] As a preferred solution of the present invention, the tooling body includes an upper tooling body, a lower tooling body and a fastener, the upper tooling body and the lower tooling body are buckled and fixed by the fastener, the tether slot is defined between the upper tooling body and the lower tooling body, the upper halves of the first groove and the second groove are formed on the lower side wall and the front side wall of the upper tooling body, the lower halves of the first groove and the second groove are formed on the upper side wall and the front side wall of the lower tooling body, and the punching hole is formed on the top wall of the upper tooling body and penetrates the upper tooling body. By setting the tooling body as a split structure, it is convenient to process and form the tether slot, the first groove and the second groove separately.

[0014] As a further preferred solution, the fastener includes a plurality of fastening screws, and the upper tooling body and the lower tooling body are provided with a plurality of corresponding sets of screw holes, and the plurality of sets of screw holes are adapted to the plurality of fastening screws. Multiple sets of screw holes can be drilled on the upper and lower tooling bodies, and the upper and lower tooling bodies can be fastened by multiple screws.

[0015] As a further preferred solution, a pair of limiting gaskets arranged opposite to each other along the left and right sides are provided between the upper tooling body and the lower tooling body, and the distance between the pair of limiting gaskets constitutes the link slot.

[0016] As a further preferred solution, a pair of the limiting gaskets are relatively movably arranged between the upper tooling body and the lower tooling body, so as to facilitate the adjustment of the width of the tie slot to adapt to the assembly of spiral ties of different specifications.

[0017] As a further preferred solution, the upper tooling body and the lower tooling body are provided with matching positioning notches on their left and / or right walls. When the tooling body adopts a split structure, the positioning notches are provided to facilitate the alignment and fastening of the upper and lower tooling bodies. When fastening the upper and lower tooling bodies, the positioning notches on the upper and lower tooling bodies can be aligned to achieve alignment and avoid misalignment.

[0018] As a further preferred solution, the shape of the tie slot, the shape of the first groove and the shape of the second groove are all rectangular. The shape of the tie slot and the shapes of the first and second grooves can be determined according to the cross-sectional shapes of the gasket, the rotating shaft and the spiral tie of the spiral tie assembly to be assembled and riveted. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 is an exploded perspective view of the present invention;

[0020] Figure 2 yes Figure 1 A front perspective view of the riveting tool shown in;

[0021] Figure 3 is a three-dimensional view of a spiral tie assembly of a condenser to be riveted;

[0022] Figure 4 yes Figure 1 A view of a riveting tool in use as shown in FIG.

[0023] Figure 5 yes Figure 1 Another view of the riveting tool in use (the upper tool body is omitted);

[0024] Wherein: 100, riveting tool; 200, spiral tie assembly; 201, spiral tie; 202, gasket; 203, rotating shaft; 204, rivet; 300, punch of riveting machine;

[0025] 1. tooling body; 11. upper tooling body; 12. lower tooling body; 13. fastener; 131. fastening screw; 132. screw hole;

[0026] 2. Tie slot; 3. First groove; 4. Second groove; 5. Punching hole; 6. Limiting gasket; 61. Waist-shaped hole; 7. Positioning notch. DETAILED DESCRIPTION

[0027] In order to explain the technical content, structural features, objectives and effects of the invention in detail, the following embodiments will be described in detail with reference to the accompanying drawings. The following embodiments are only used to explain the invention in detail and do not limit the scope of protection of the invention in any form. Figure 1 The various positional relationships shown in correspondence respectively.

[0028] like Figure 1 to Figure 2 As shown, the riveting tool 100 includes a tool body 1 of a split structure, which is mainly made of 45# steel, wherein the 45# steel refers to the 45# steel specified in the GB / T699-1999 standard, which has good mechanical properties and hardness. The tool body 1 includes an upper tool body 11, a lower tool body 12 and a fastener 13. The upper tool body 11 and the lower tool body 12 are buckled and fixed by the fastener 13.

[0029] Specifically, the fastener 13 includes a plurality of fastening screws 131, and the upper tooling body 11 and the lower tooling body 12 are provided with a corresponding plurality of screw holes 132, and the plurality of screw holes 132 are adapted to the plurality of fastening screws 131. To facilitate the mutual engagement of the upper and lower tooling bodies 11 and 12, the upper tooling body 11 and the lower tooling body 12 are provided with matching positioning notches 7 on the left and right walls thereof. Of course, a positioning portion formed by such a positioning notch 7 may also be formed or constructed only on one of the two opposite side walls. Of course, the fastener is not limited to the structure of the fastening screws described above, and may also be a pair of engaging claws, which are respectively engaged and clamped on the opposite side portions of the upper and lower tooling bodies.

[0030] Combination Figure 5 As shown, a pair of limiting spacers 6 arranged opposite to each other along the left and right sides are provided between the upper tooling body 11 and the lower tooling body 12, and the distance between the pair of limiting spacers 6 constitutes a tie slot 2. Therefore, the tie slot 2 is defined between the upper tooling body 11 and the lower tooling body 12, and the tie slot 2 passes through the tooling body 1 from the rear side wall of the tooling body 1 and extends to the front side wall. The shape and size of the tie slot 2 are configured to be consistent with Figure 3 The spiral tie 201 of the spiral tie assembly 200 shown in FIG.

[0031] The front side wall of the tooling body 1 is provided with a first groove 3 and a second groove 4, respectively. Specifically, the upper parts of the first groove 3 and the second groove 4 are formed on the lower side wall and the front side wall of the upper tooling body 11, and the lower parts of the first groove 3 and the second groove 4 are formed on the upper side wall and the front side wall of the lower tooling body 12. The first groove 3 extends along the upper and lower sides of the tether slot 2 and the two are connected. The width of the first groove 3 is smaller than the width of the tether slot 2. The shape and size of the first groove 3 are configured to be Figure 3 The second groove 4 and the first groove 3 are arranged on the same side wall of the tooling body 1, and the second groove 4 extends along the upper and lower sides of the first groove 3 and the two are connected. The width of the second groove 4 is smaller than the width of the first groove 3, and the shape and size of the second groove 4 are configured to be Figure 3 The rotating shaft 203 of the spiral tie assembly 200 shown in FIG.

[0032] A punch hole 5 is provided on the top wall of the upper tooling body 11, and the punch hole 5 penetrates the upper tooling body 11 and extends downward and is connected to the tie slot 2, the first groove 3, and the second groove 4. The shape and size of the punch hole 5 are configured to provide Figure 3 and Figure 5 The rivet shown in FIG. is inserted and Figure 4 and Figure 5 The punch 300 of the riveting machine shown in FIG.

[0033] In this example, the shape of the tie slot 2, the shape of the first groove 3, and the shape of the second groove 4 are all rectangular. Of course, the shape of the above-mentioned notches is not limited to the rectangle, and can also be specifically set according to the parts to be riveted. For example, the shape of the first groove 3 can also be a flat ellipse, and the shape of the second groove 4 can also be a circle or a prism. The shape of the tie slot 2 can also be an isosceles trapezoid or a flat rhombus or other regular and symmetrical polygons.

[0034] To facilitate the adjustment of the width of the tie slot 2, the assembly of spiral ties 201 of different specifications can be adapted. Figure 1 and Figure 5As shown, a pair of limiting washers 6 are relatively movably arranged between the upper tooling body 11 and the lower tooling body 12. Specifically, a pair of waist-shaped holes 61 are respectively provided on the pair of limiting washers 6, and the pair of waist-shaped holes 61 can be passed through by the fastening screws 131, so that when the fastening screws 131 are loosened, the distance between the pair of limiting washers 6 can be adjusted, thereby adjusting the width of the tie slot 2 to adapt to the assembly and riveting of spiral ties 201 with different width specifications. Of course, the movable setting structure of the pair of limit washers 6 between the upper and lower tooling bodies 11 and 12 is not limited to the matching structure of the above-mentioned fastening screws and the waist-shaped holes on the limit washers. The relative inner walls between the upper and lower tooling bodies (that is, the lower side wall of the upper tooling body and the upper side wall of the lower tooling body) can also be milled into a slide groove, and a reset component, such as a spring, is set on the left and right opposite side walls of the slide groove. The limit washers are placed in the slide groove and connected to the springs. In this way, the link slot defined between the pair of limit washers can realize the adaptive insertion of spiral links of different specifications.

[0035] In this example, by setting the tooling body 1 as a split structure, it is convenient to process and form the tie slot 2, the first groove 3 and the second groove 4 separately. It should be noted that in other embodiments, the tooling body 1 is not limited to the split structure described above, but can also be an integrated structure, which has a top wall, a bottom wall and two opposite side walls, the tie slot 2 extends from one side wall to the other opposite side wall, and the first groove and the second groove are opened on one of the two opposite side walls, and a punching hole extending downward and connecting the first groove, the second groove and the tie slot is opened on the top wall of the tooling body.

[0036] Combination Figures 4 to 5 As shown, the working principle of the riveting tool 100 is realized as follows: the spiral tie 201 of the spiral tie assembly 200 is inserted into the tie slot 2 of the tool body 1, and a pair of gaskets 202 of the spiral tie assembly 200 can be respectively inserted into the upper and lower halves of the first groove 3, and the connecting part of the rotating shaft 203 is inserted into the second groove 4. After the three components of the spiral tie assembly are positioned, the rivet 204 is inserted / leaked / dropped into the punching hole 5, and the punch 300 of the riveting machine is used to punch downward into the punching hole 5, and the rivet 204 is used to rivet and punch the spiral tie 201, the rotating shaft 203 and the gasket 202, so as to realize the one-time punching and riveting of the various components of the spiral tie assembly 200.

[0037] In summary, the riveting tooling structure of this case can realize more efficient, time-saving and labor-saving riveting assembly of various components of the spiral tie assembly for the condenser, and the assembly process is simple, the operation is convenient, and the production efficiency is improved.

[0038] The above embodiments are only for illustrating the technical concept and features of the present invention, and their purpose is to enable people familiar with the technology to understand the content of the present invention and implement it accordingly, and they cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A riveting tool for a spiral tie assembly of a condenser, characterized in that: include: A tool body (1) having a top wall, a bottom wall and two opposite side walls; A tie slot (2) extending from one side wall of the tooling body (1) through the tooling body (1) and to the other opposite side wall, the shape and size of the tie slot (2) being configured to be compatible with the spiral tie of the spiral tie assembly; A first groove (3) is arranged on one of the two opposite side walls of the tooling body (1), the first groove (3) extending along the upper and lower sides of the tie slot (2) and the two are connected, the width of the first groove (3) is smaller than the width of the tie slot (2), and the shape and size of the first groove (3) are configured to be compatible with the gasket of the spiral tie assembly; A second groove (4) is arranged on the same side wall of the tooling body (1) as the first groove (3), the second groove (4) extends along the upper and lower sides of the first groove (3) and the two are connected, the width of the second groove (4) is smaller than the width of the first groove (3), and the shape and size of the second groove (4) are configured to be compatible with the rotating shaft of the spiral tie assembly; A punching hole (5) is arranged on the top wall of the tooling body (1) and extends downwardly and is connected to the tie slot (2), the first groove (3) and the second groove (4). The shape and size of the punching hole (5) are configured to allow a rivet to be inserted and to be compatible with a punch of a riveting machine; The tooling body (1) comprises an upper tooling body (11), a lower tooling body (12) and a fastener (13); the upper tooling body (11) and the lower tooling body (12) are buckled together and fixed by the fastener (13); the link slot (2) is defined between the upper tooling body (11) and the lower tooling body (12); the upper parts of the first groove (3) and the second groove (4) are formed on the lower side wall and the front side wall of the upper tooling body (11); the lower parts of the first groove (3) and the second groove (4) are formed on the upper side wall and the front side wall of the lower tooling body (12); the punching hole (5) is formed on the top wall of the upper tooling body (11) and passes through the upper tooling body (11); The fastener (13) comprises a plurality of fastening screws (131), the upper tooling body (11) and the lower tooling body (12) are provided with a corresponding plurality of groups of screw holes (132), and the plurality of groups of screw holes (132) are adapted to the plurality of fastening screws (131); A pair of limiting washers (6) arranged opposite to each other along the left and right sides are provided between the upper tooling body (11) and the lower tooling body (12), and the distance between the pair of limiting washers (6) constitutes the link slot (2); A pair of the limiting gaskets (6) are arranged between the upper tooling body (11) and the lower tooling body (12) in a relatively movable manner; The upper tooling body (11) and the lower tooling body (12) are provided with matching positioning notches (7) on their left side walls and / or right side walls; The shape of the tie slot (2), the shape of the first groove (3) and the shape of the second groove (4) are all rectangular.

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