Positioning welding tool for centrifugal impeller

Abstract

The utility model relates to the technical field of mechanical manufacturing, in particular to a centrifugal impeller positioning and welding tool which comprises a rotary support, a concentric chassis, a stepped hollow concentric column, a first blade fixing piece, a second blade fixing piece, a first supporting pipe, a second supporting pipe, an impeller opening fixing piece and a pressing assembly. A center block is arranged on the concentric base plate and makes contact with the inner wall of the stepped hollow concentric column and the inner wall of the centrifugal impeller, the stepped hollow concentric column, the center block and the centrifugal impeller are concentric, and the first blade fixing piece and the second blade fixing piece are connected with the outer wall of the stepped hollow concentric column. And the first blade fixing piece and the second blade fixing piece are both connected with the centrifugal impeller, so that the technical problems that in the prior art, a centrifugal impeller positioning and welding tool is high in manufacturing cost, high in machining precision requirement and long in assembly time are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical manufacturing, in particular to a positioning welding tool for a centrifugal impeller. Background Art

[0002] In a wind turbine cabin, hot air must be exchanged with cool air from the outside to lower the cabin temperature and maintain continuous operation of the generator set. This prevents high temperatures from triggering disconnection of internal electrical components, significantly shortening wind turbine operation and reducing power generation. The key to heat exchange is the heat exchanger, and the centrifugal impeller is a key component within the heat exchanger.

[0003] The existing centrifugal impeller positioning welding tooling has the problems of high production cost, high processing precision requirements and long assembly time. Utility Model Content

[0004] The purpose of the utility model is to provide a centrifugal impeller positioning welding tool, aiming to solve the technical problems of the centrifugal impeller positioning welding tool in the prior art, such as high production cost, high processing precision requirement and long assembly time.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts a centrifugal impeller positioning welding tool, including a rotary support, a concentric chassis, a stepped hollow concentric column, a first blade fixing member, a second blade fixing member, a first support tube, a second support tube, an impeller port fixing member and a clamping assembly, wherein the concentric chassis is arranged in the rotary support, and a center block is provided on the concentric chassis, and the center block is in contact with the inner wall of the stepped hollow concentric column and the centrifugal impeller, and the stepped hollow concentric column, the center block and the centrifugal impeller are all concentric, and the first blade fixing member is fixed to the first blade fixing member. The first blade fixing member and the second blade fixing member are both connected to the outer wall of the stepped hollow concentric column, and the first blade fixing member and the second blade fixing member are both connected to the centrifugal impeller, the first supporting tube is arranged between the first blade fixing member and the second blade fixing member, the second supporting tube is arranged between the second blade fixing member and the impeller port fixing member, the impeller port fixing member is connected to the outer wall of the stepped hollow concentric column, the impeller port fixing member is connected to the impeller port of the centrifugal impeller, and the clamping assembly clamps the impeller port fixing member.

[0006] Wherein, the impeller port fixing piece has a clamping groove, and the clamping groove is clamped at the impeller port of the centrifugal impeller.

[0007] Wherein, the concentric chassis includes a chassis body, an insert and a screw, the insert is fixedly connected to the chassis body, the insert is embedded in the slewing support, and the screw is fixedly connected to the chassis body.

[0008] Wherein, the clamping assembly includes a clamping piece and a nut, the clamping piece is connected to the impeller port fixing piece, the nut is connected to the screw rod, and the nut abuts against the clamping piece.

[0009] Wherein, the pressing member includes a third supporting tube and a pressure plate, the third supporting tube is arranged between the impeller port fixing member and the pressure plate, and the nut is in contact with the pressure plate.

[0010] Wherein, the nut is an M14 nut.

[0011] The utility model provides a positioning welding tool for a centrifugal impeller. During specific use, the concentric chassis is installed in the rotary support, the centrifugal impeller is placed on the concentric chassis, and the concentricity of the stepped hollow concentric column and the centrifugal impeller is ensured by the center block. The fixation of the first blade fixing member and the second blade fixing member to the centrifugal impeller is ensured by the structure of the stepped hollow concentric column. The first support tube and the second support tube are used to support the first blade fixing member, the second blade fixing member and the impeller mouth fixing member, which is convenient for cutting and obtaining pipe materials. Finally, the clamping assembly is used to clamp the entire concentric tool. In this way, the technical problems of high production cost, high processing precision requirement and long assembly time of the positioning welding tool for centrifugal impellers in the prior art are solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 It is a structural schematic diagram of a positioning welding tool for a centrifugal impeller of the present utility model.

[0014] 1-slewing support, 2-stepped hollow concentric column, 3-first blade fixing member, 4-second blade fixing member, 5-first support tube, 6-second support tube, 7-impeller mouth fixing member, 8-center block, 9-clamping groove, 10-chassis body, 11-embedded part, 12-screw, 13-nut, 14-third support tube, 15-pressure plate, 16-centrifugal impeller. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0016] See also Figure 1 , Figure 1 It is a structural schematic diagram of a positioning welding tool for a centrifugal impeller of the present utility model.

[0017] The utility model provides a positioning welding tool for a centrifugal impeller, comprising a rotary support 1, a concentric chassis, a stepped hollow concentric column 2, a first blade fixing member 3, a second blade fixing member 4, a first support tube 5, a second support tube 6, an impeller port fixing member 7 and a pressing assembly, wherein the concentric chassis is arranged in the rotary support 1, a center block 8 is provided on the concentric chassis, and the center block 8 is in contact with the inner wall of the stepped hollow concentric column 2 and the centrifugal impeller 16, and the stepped hollow concentric column 2, the center block 8 and the centrifugal impeller 16 are all concentric, the first blade fixing member 3 and the second blade fixing member 4 are ... Both blade fixing members 4 are connected to the outer wall of the stepped hollow concentric column 2, and the first blade fixing member 3 and the second blade fixing member 4 are both connected to the centrifugal impeller 16, the first support tube 5 is arranged between the first blade fixing member 3 and the second blade fixing member 4, the second support tube 6 is arranged between the second blade fixing member 4 and the impeller mouth fixing member 7, the impeller mouth fixing member 7 is connected to the outer wall of the stepped hollow concentric column 2, the impeller mouth fixing member 7 is connected to the impeller mouth of the centrifugal impeller 16, and the clamping assembly clamps the impeller mouth fixing member 7.

[0018] For this specific embodiment, during specific use, the concentric chassis is installed in the rotary support 1, the centrifugal impeller 16 is placed on the concentric chassis, and the center block 8 is used to ensure that the stepped hollow concentric column 2 and the centrifugal impeller 16 are concentric. The first blade fixing member 3 and the second blade fixing member 4 fix the centrifugal impeller 16 through the structure of the stepped hollow concentric column 2. The first support tube 5 and the second support tube 6 are used to support the first blade fixing member 3, the second blade fixing member 4 and the impeller mouth fixing member 7, which is convenient for cutting and obtaining pipe materials. Finally, the clamping assembly is used to clamp the entire concentric tooling, thereby solving the technical problems of high production cost, high processing precision requirements and long assembly time of the positioning welding tooling of the centrifugal impeller in the prior art.

[0019] The impeller port fixing member 7 has a clamping groove 9 , and the clamping groove 9 is clamped at the impeller port of the centrifugal impeller 16 .

[0020] According to this specific embodiment, by providing the holding groove 9 , the impeller port of the centrifugal impeller 16 is embedded in the holding groove 9 , thereby improving positioning stability.

[0021] Secondly, the concentric chassis includes a chassis body 10, an insert 11 and a screw 12. The insert 11 is fixedly connected to the chassis body 10, the insert 11 is embedded in the slewing support 1, and the screw 12 is fixedly connected to the chassis body 10;

[0022] The pressing assembly includes a pressing piece and a nut 13, wherein the pressing piece is connected to the impeller port fixing piece 7, the nut 13 is connected to the screw 12, and the nut 13 abuts against the pressing piece;

[0023] The pressing member includes a third support tube 14 and a pressure plate 15. The third support tube 14 is arranged between the impeller port fixing member 7 and the pressure plate 15. The nut 13 is in contact with the pressure plate 15.

[0024] The nut 13 is an M14 nut 13 .

[0025] According to this specific embodiment, the insert 11 is installed in the rotary support 1, and the chassis body 10 is used to place the centrifugal impeller 16. By supporting the third support tube 14 on the impeller mouth fixing member 7, supporting the pressure plate 15 on the third support tube 14, and finally tightening the nut 13 on the above-mentioned screw 12, the pressure plate 15 can be tightened and the entire tooling can be tightened.

[0026] A positioning welding fixture for a centrifugal impeller using the present embodiment, when in use, the concentric chassis is installed in the rotary support 1, the centrifugal impeller 16 is placed on the concentric chassis, and the center block 8 is used to ensure that the stepped hollow concentric column 2 and the centrifugal impeller 16 are concentric, the first blade fixing member 3 and the second blade fixing member 4 fix the centrifugal impeller 16 through the structure of the stepped hollow concentric column 2, the first support tube 5 and the second support tube 6 are used to support the first blade fixing member 3, the second blade fixing member 4 and the impeller mouth fixing member 7, which is convenient for cutting and obtaining pipe materials, and finally the clamping assembly is used to clamp the entire concentric fixture, thereby solving the technical problems of high production cost, high processing precision requirement and long assembly time of the positioning welding fixture for centrifugal impellers in the prior art.

[0027] The above disclosure is only a preferred embodiment of the present invention, and certainly cannot be used to limit the scope of rights of the present invention. Ordinary technicians in this field can understand that all or part of the processes of the above embodiment and equivalent changes made in accordance with the claims of the present invention are still within the scope of the utility model.

Claims

1. A centrifugal impeller positioning welding tool, characterized in that: The cam is provided with a first support and a second support tube, and the second support tube has a first end and a second end, and a second support tube has a second end, and the second support tube has a second end.

2. The centrifugal impeller positioning welding tool according to claim 1, characterized in that: The impeller port fixing piece has a clamping groove, and the clamping groove is clamped at the impeller port of the centrifugal impeller.

3. The centrifugal impeller positioning welding tool according to claim 2, characterized in that: The concentric chassis includes a chassis body, an insert and a screw, the insert is fixedly connected to the chassis body, the insert is embedded in the slewing support, and the screw is fixedly connected to the chassis body.

4. The centrifugal impeller positioning welding tool according to claim 3, characterized in that: The pressing assembly includes a pressing piece and a nut. The pressing piece is connected to the impeller port fixing piece. The nut is connected to the screw rod, and the nut abuts against the pressing piece.

5. The centrifugal impeller positioning welding tool according to claim 4, characterized in that: The pressing member includes a third supporting tube and a pressure plate. The third supporting tube is arranged between the impeller port fixing member and the pressure plate. The nut is in contact with the pressure plate.

6. The centrifugal impeller positioning welding tool according to claim 5, characterized in that: The nut is an M14 nut.

Images