A kind of marking device for inlet and outlet section of multistage centrifugal pump

Abstract

The utility model relates to the technical field of centrifugal pump production especially is concerned with a kind of marking device of multistage centrifugal pump inlet and outlet liquid section, and its position is fixed to inlet and outlet liquid pipe portion by fixed device cooperation marking device, prevent pipeline from appearing self rotation in processing process, the position of inlet and outlet liquid pipe is fixed by pushing device cooperation auxiliary device, prevent pipeline from appearing displacement in marking process, inlet and outlet liquid pipe are automatically marked by marking device, make the feeding process and processing process can be carried out at the same time by the rotation of fixed device itself, improve the production efficiency of equipment and the practicability of device;Including fixed device, pushing device, auxiliary device and marking device, pushing device is installed on fixed device, auxiliary device is installed on pushing device, and marking device is installed on fixed device.

Description

Technical Field

[0001] This utility model relates to the technical field of centrifugal pump production, and in particular to a marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump. Background Technology

[0002] A multistage centrifugal pump combines two or more centrifugal pumps with the same function. In terms of fluid channel structure, the pressure relief port of the first stage connects to the inlet of the second stage, and the pressure relief port of the second stage connects to the inlet of the third stage. This series connection forms a multistage centrifugal pump. After the turning process and before the milling / drilling process, the inlet and outlet sections of a multistage centrifugal pump must be scribing to facilitate subsequent machining. Because the inlet and outlet shapes are relatively complex, many factors need to be considered during scribing, including the integrity and consistency of the shape, ensuring the position of non-machined elements, and the reasonable distribution of machining allowance. Conventional scribing methods are not only inefficient and difficult, but also produce inconsistent quality. Therefore, it is necessary to provide a more efficient and accurate auxiliary scribing device.

[0003] The existing Chinese utility model patent with application number CN202223327401.7 relates to a scribing device for the inlet and outlet liquid sections of a multi-stage centrifugal pump, including a platform, base, transition plate, annular stop, comprehensive template and annular groove, which can scribing quickly and accurately.

[0004] However, the above-mentioned device does not have the ability to quickly fix the inlet and outlet liquid sections of the centrifugal pump in actual use, and the loading and unloading process leads to a reduction in production efficiency. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump. This device uses a fixing device in conjunction with a marking device to fix the position of the inlet and outlet liquid sections, preventing the pipes from rotating during processing. It also uses a pushing device in conjunction with an auxiliary device to fix the position of the inlet and outlet liquid sections, preventing displacement of the pipes during marking. The marking device automatically marks the inlet and outlet liquid sections, and the fixing device rotates itself to allow the loading and unloading process to be carried out simultaneously with the processing process. This improves the production efficiency of the equipment and the practicality of the device.

[0006] This utility model discloses a marking device for the inlet and outlet sections of a multi-stage centrifugal pump. It includes a fixing device, a pushing device, an auxiliary device, and a marking device. The pushing device is mounted on the fixing device, the auxiliary device is mounted on the pushing device, and the marking device is mounted on the fixing device. The fixing device, in conjunction with the marking device, fixes the position of the inlet and outlet pipes, preventing the pipes from rotating during processing. The pushing device, in conjunction with the auxiliary device, also fixes the position of the inlet and outlet pipes, preventing displacement during marking. The marking device automatically marks the inlet and outlet pipes. The rotation of the fixing device allows the loading and unloading process to occur simultaneously with the processing process, improving the equipment's production efficiency and the device's practicality.

[0007] Preferably, the fixing device includes a base plate, a rotating platform, a rotating shaft seat, a rotating arm, a pressure plate, and an arc-shaped groove. The rotating platform is installed on the upper surface of the base plate, and two sets of rotating shaft seats are installed on the left and right sides of the rotating platform, respectively. The rotating arm is connected to the side of the rotating shaft seat, and the pressure plate is installed on the rotating arm. An arc-shaped groove is provided on the lower surface of the pressure plate. By rotating the rotating platform itself, the inlet and outlet pipes can be marked on one side of the rotating platform at the same time, and the inlet and outlet pipes can be loaded and unloaded on the other side, which improves the production efficiency of the equipment. By rotating the rotating arm and the pressure plate, the pressure plate is pressed on the inlet and outlet pipes to fix them in conjunction with the marking device, preventing the inlet and outlet pipes from rotating on their own. The arc-shaped groove increases the effective contact area between the pressure plate and the inlet and outlet pipes, which improves the practicality of the device.

[0008] Preferably, it also includes a insert plate and fastening bolts. A slot is provided on the side of the rotating end of the rotating arm, and an insert plate is provided on the pressure plate. The insert plate can be inserted into the slot on the rotating arm. Two sets of fastening bolts are installed on the side of the rotating arm. The insert plate is connected to the slot on the rotating arm, and the insert plate is pressed by rotating the fastening bolts to fix the connection. This facilitates the quick replacement and cleaning of the pressure plate and improves the practicality of the device.

[0009] Preferably, the pushing device includes a strip-shaped support plate, a rectangular groove, a lead screw, a geared motor, and a pushing plate. The strip-shaped support plate is located in the middle of the upper end face of the rotating platform, and a rectangular groove is located in the middle of the upper end face of the strip-shaped support plate. A lead screw is horizontally installed in the rectangular groove, and a geared motor is installed on the right end face of the rectangular groove. The output end of the geared motor is connected to the lead screw, and the lower part of the pushing plate is fitted onto the lead screw with a nut. The strip-shaped support plate provides support for the inlet and outlet water pipes. Turning on the geared motor transmits power to the lead screw, causing it to rotate. The rotating lead screw drives the pushing plate to move laterally through the nut, thereby adjusting the position of the inlet and outlet water pipes and improving the practicality of the device.

[0010] Preferably, it also includes a smooth rod, which is horizontally installed in the rectangular groove and passes through the main body of the pusher plate; the smooth rod limits the lateral movement of the pusher plate, reduces the impact of the pusher plate's own vibration on the spatial position of the pipe when it pushes the water inlet and outlet pipes, and improves the stability and practicality of the device.

[0011] Preferably, the auxiliary device includes a limiting slot, an intercepting plate, and a handle groove. A set of limiting slots is provided on the left and right edges of the upper end face of the strip-shaped support plate, and the intercepting plate can be inserted into the limiting slot. A handle groove is provided on the outer side of the intercepting plate. By inserting the intercepting plate into the limiting slot, the intercepting plate limits the position of the inlet and outlet water pipes. The position of the pipe is fixed in conjunction with the pushing device. The handle groove makes it easy to remove the intercepting plate from the limiting slot, thus improving the practicality of the device.

[0012] Preferably, the marking device includes a bracket, a first electric cylinder, a U-shaped pressure frame, a second electric cylinder, and a laser marking head. The bracket is installed on the right side of the upper end face of the base plate, and the first electric cylinder is installed on the top surface of the bracket. The U-shaped pressure frame is connected to the moving end of the first electric cylinder. The second electric cylinder is installed on the right end face of the bracket, and the laser marking head is installed on the moving end of the second electric cylinder. By controlling the extension of the first electric cylinder, the lower part of the U-shaped pressure frame presses against the two sets of pressure plates on the left and right sides respectively, thereby making the interceptor plate close to the outer wall of the pipe and preventing the pipe from rotating. By controlling the extension of the second electric cylinder, the laser marking head is moved to perform marking operations on the pipe, thus improving the practicality of the device.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the position of the inlet and outlet liquid pipes is fixed by the fixing device and the marking device to prevent the pipes from rotating during the processing; the position of the inlet and outlet liquid pipes is fixed by the pushing device and the auxiliary device to prevent the pipes from shifting during the marking process; the inlet and outlet liquid pipes are automatically marked by the marking device; and the loading and unloading process and the processing process can be carried out at the same time by the rotation of the fixing device itself, which improves the production efficiency of the equipment and the practicality of the device. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the isometric structure of this utility model;

[0015] Figure 2 This is a first cross-sectional structural diagram of the present invention;

[0016] Figure 3 This is a schematic diagram of the second cross-sectional structure of this utility model;

[0017] Figure 4 This is a partially enlarged structural schematic diagram of the present invention;

[0018] The following are labels in the attached diagram: 1. Base plate; 2. Rotating platform; 3. Shaft seat; 4. Rotating arm; 5. Pressure plate; 6. Arc groove; 7. Insert plate; 8. Fastening bolt; 9. Strip bearing plate; 10. Rectangular groove; 11. Lead screw; 12. Gear motor; 13. Push plate; 14. Guide rod; 15. Limiting slot; 16. Intercepting plate; 17. Handle groove; 18. Bracket; 19. First electric cylinder; 20. U-shaped pressure frame; 21. Second electric cylinder; 22. Laser scribing head. Detailed Implementation

[0019] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. This utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to make the disclosure of this utility model more thorough and complete. Example

[0020] Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the pushing device is mounted on the fixed device, the auxiliary device is mounted on the pushing device, and the marking device is mounted on the fixed device;

[0021] The fixing device includes a base plate 1, a rotating platform 2, a rotating shaft seat 3, a rotating arm 4, a pressure plate 5, and an arc groove 6. The rotating platform 2 is installed on the upper surface of the base plate 1. Two sets of rotating shaft seats 3 are installed on the left and right sides of the rotating platform 2 respectively. The rotating arm 4 is connected to the side of the rotating shaft seat 3. The pressure plate 5 is installed on the rotating arm 4. An arc groove 6 is provided on the lower surface of the pressure plate 5.

[0022] It also includes a insert plate 7 and fastening bolts 8. A slot is provided on the side of the rotating end of the rotating arm 4. The pressure plate 5 is provided with the insert plate 7. The insert plate 7 can be inserted into the slot on the rotating arm 4. Two sets of fastening bolts 8 are installed on the side of the rotating arm 4.

[0023] The pushing device includes a strip-shaped support plate 9, a rectangular groove 10, a lead screw 11, a geared motor 12, and a pushing plate 13. The strip-shaped support plate 9 is provided in the middle of the upper end face of the rotating platform 2. The rectangular groove 10 is provided in the middle of the upper end face of the strip-shaped support plate 9. The lead screw 11 is horizontally installed in the rectangular groove 10. The geared motor 12 is installed on the right end face of the rectangular groove 10. The output end of the geared motor 12 is connected to the lead screw 11. The lower part of the pushing plate 13 is fitted onto the lead screw 11 with a nut.

[0024] It also includes a light rod 14, which is horizontally installed in the rectangular groove 10 and passes through the main body of the push plate 13;

[0025] The auxiliary device includes a limiting slot 15, an intercepting plate 16, and a handle groove 17. A set of limiting slots 15 are respectively provided on the left and right edges of the upper end face of the strip bearing plate 9. The intercepting plate 16 can be inserted into the limiting slot 15. The outer side of the intercepting plate 16 is provided with a handle groove 17.

[0026] The scribing device includes a bracket 18, a first electric cylinder 19, a U-shaped pressure frame 20, a second electric cylinder 21, and a laser scribing head 22. The bracket 18 is installed on the right side of the upper end face of the base plate 1. The first electric cylinder 19 is installed on the top surface of the bracket 18. The U-shaped pressure frame 20 is connected to the moving end of the first electric cylinder 19. The second electric cylinder 21 is installed on the right end face of the bracket 18. The laser scribing head 22 is installed on the moving end of the second electric cylinder 21. The inlet and outlet liquid pipes are fixed in position by a fixing device in conjunction with the scribing device to prevent the pipes from rotating during processing. The position of the inlet and outlet liquid pipes is fixed by a pushing device in conjunction with an auxiliary device to prevent displacement of the pipes during scribing. The scribing device automatically scribes the inlet and outlet liquid pipes. The rotation of the fixing device allows the loading and unloading process to be carried out simultaneously with the processing process, improving the production efficiency and practicality of the equipment.

[0027] like Figures 1 to 4 As shown, this utility model discloses a marking device for the inlet and outlet sections of a multi-stage centrifugal pump. During operation, the inlet and outlet pipes are first placed on the left side of the strip-shaped support plate 9. Then, the rotating platform 2 is rotated to the underside of the support 18. The reduction motor 12 is then activated to transmit power to the lead screw 11, causing it to rotate. The rotating lead screw 11, through a nut, drives the push plate 13 to move laterally, thus fixing the positions of both ends of the pipe with the interceptor plate 16. The operator then rotates the two sets of pressure plates 5 onto the inlet and outlet pipes. The first electric cylinder 19 is then extended, causing the lower part of the U-shaped pressure frame 20 to press against the two sets of pressure plates 5, thus ensuring the interceptor plate 16 is flush against the outer wall of the pipe. Finally, the second electric cylinder 21 is extended, moving the laser marking head 22 to perform the marking operation on the pipe.

[0028] The first electric cylinder 19, rotating platform 2, laser marking head 22, second electric cylinder 21, and geared motor 12 of the marking device for the inlet and outlet sections of a multi-stage centrifugal pump of this utility model are commercially available. Technical personnel in this industry only need to install and operate them according to the accompanying instruction manual, without requiring any creative work from those skilled in the art.

[0029] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump; characterized in that, It includes a fixing device, a pushing device, an auxiliary device, and a marking device. The pushing device is installed on the fixing device, the auxiliary device is installed on the pushing device, and the marking device is installed on the fixing device.

2. The marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump as described in claim 1, characterized in that, The fixing device includes a base plate (1), a rotating platform (2), a rotating shaft seat (3), a rotating arm (4), a pressure plate (5), and an arc groove (6). The rotating platform (2) is installed on the upper surface of the base plate (1). Two sets of rotating shaft seats (3) are installed on the left and right sides of the rotating platform (2). The rotating arm (4) is connected to the side of the rotating shaft seat (3). The pressure plate (5) is installed on the rotating arm (4). An arc groove (6) is provided on the lower surface of the pressure plate (5).

3. The marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump as described in claim 2, characterized in that, It also includes a insert plate (7) and fastening bolts (8). A slot is provided on the rotating end side of the rotating arm (4). The pressure plate (5) is provided with the insert plate (7). The insert plate (7) can be inserted into the slot on the rotating arm (4). Two sets of fastening bolts (8) are installed on the side of the rotating arm (4).

4. The marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump as described in claim 3, characterized in that, The pushing device includes a strip bearing plate (9), a rectangular groove (10), a lead screw (11), a geared motor (12), and a pushing plate (13). The strip bearing plate (9) is provided in the middle of the upper end face of the rotating platform (2). The rectangular groove (10) is provided in the middle of the upper end face of the strip bearing plate (9). The lead screw (11) is horizontally installed in the rectangular groove (10). The geared motor (12) is installed on the right end face of the rectangular groove (10). The output end of the geared motor (12) is connected to the lead screw (11). The lower part of the pushing plate (13) is fitted onto the lead screw (11) by a nut.

5. The marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump as described in claim 4, characterized in that, It also includes a light rod (14), which is horizontally installed in a rectangular groove (10) and passes through the main body of the push plate (13).

6. The marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump as described in claim 5, characterized in that, The auxiliary device includes a limiting slot (15), an interceptor plate (16) and a handle groove (17). A set of limiting slots (15) are provided on the left and right edges of the upper end face of the strip bearing plate (9). The interceptor plate (16) can be inserted into the limiting slot (15). A handle groove (17) is provided on the outer side of the interceptor plate (16).

7. The marking device for the inlet and outlet liquid sections of a multi-stage centrifugal pump as described in claim 6, characterized in that, The marking device includes a bracket (18), a first electric cylinder (19), a U-shaped pressure frame (20), a second electric cylinder (21), and a laser marking head (22). The bracket (18) is installed on the right side of the upper end face of the base plate (1). The first electric cylinder (19) is installed on the top surface of the bracket (18). The U-shaped pressure frame (20) is connected to the moving end of the first electric cylinder (19). The second electric cylinder (21) is installed on the right end face of the bracket (18). The laser marking head (22) is installed on the moving end of the second electric cylinder (21).

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