Vertical multi-stage centrifugal pump shell machining device

Abstract

The utility model discloses a vertical multi-stage centrifugal pump shell processing device, which relates to the technical field of shell processing and comprises a base and a drilling machine body mounted on the base, a drilling seat is mounted on the base and slidably arranged on the base, and a driving component for driving the drilling seat to slide is arranged on the base. A mounting plate is rotationally arranged at the top of the drilling seat, a clamping assembly used for clamping a centrifugal pump is arranged on the mounting plate, an equipment cavity is formed in the top of the drilling seat, an inner gear ring is mounted at the bottom of the mounting plate, a first driving motor is mounted on the inner bottom wall of the equipment cavity, and a first gear is mounted on an output shaft of the first driving motor. And the inner gear ring is meshed with the gear I. The problems that when an existing vertical multi-stage centrifugal pump shell is drilled, a workpiece is inconvenient to move, operation is tedious, efficiency is low, and the vertical multi-stage centrifugal pump shell can not adapt to clamping of centrifugal pumps of different models are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of shell processing, in particular to a vertical multi-stage centrifugal pump shell processing device. Background Art

[0002] Vertical multistage centrifugal pump, also known as CDLF vertical multistage centrifugal pump, is a non-self-priming vertical multistage centrifugal pump designed and manufactured with advanced technology from home and abroad. It adopts standard vertical motor and quick-install mechanical seal, which is very convenient to replace. The flow-through parts of the pump are made of stainless steel (304\316) and can be used for mildly corrosive media. It can replace similar products such as CR and CRN from abroad. After the product was put on the market, it was characterized by high efficiency, energy saving, reliable quality and wide range of use.

[0003] Existing centrifugal pump casings are all provided with pump covers, and the centrifugal pump casings are connected to the equipment through the pump covers. Therefore, it is often necessary to drill holes in the centrifugal pump covers when processing the centrifugal pump casings. The holes on the centrifugal pump casing covers are distributed in a circular array along the axis. The existing centrifugal pumps are clamped by a clamping device when drilling holes, and the centrifugal pumps are subsequently moved in the X-axis and Y-axis directions through processing equipment. Therefore, each time a hole is drilled, the drilling position of the centrifugal pump is readjusted, which is cumbersome and inefficient. Moreover, most of the existing clamping devices cannot clamp various types of pump covers, and the practicability of the clamping devices is low. A solution is proposed below to address the above problems. Utility Model Content

[0004] The utility model aims to provide a vertical multi-stage centrifugal pump casing processing device, which solves the problems of the existing vertical multi-stage centrifugal pump casing proposed in the above background technology that the workpiece is inconvenient to move when drilling, the operation is cumbersome and the efficiency is low, and it cannot adapt to different models of centrifugal pumps for clamping.

[0005] The above technical objectives of the utility model are achieved through the following technical solutions:

[0006] A vertical multi-stage centrifugal pump casing processing device comprises a base and a drilling machine body mounted on the base, a drilling seat being mounted on the base, the drilling seat being slidably mounted on the base, a driving assembly being provided on the base for driving the drilling seat to slide, a mounting plate being rotatably mounted on the top of the drilling seat, a clamping assembly for clamping the centrifugal pump being provided on the mounting plate, an equipment cavity being provided on the top of the drilling seat, an inner gear ring being mounted on the bottom of the mounting plate, a driving motor 1 being mounted on the inner bottom wall of the equipment cavity, a gear 1 being mounted on the output shaft of the driving motor 1, and the inner gear ring being gear meshed with the gear 1.

[0007] Preferably, the driving assembly includes a screw rod and a connecting slide plate, a trapezoidal wide groove is provided on the top of the base, the screw rod is rotatably arranged in the trapezoidal wide groove, the middle position of the connecting slide plate is threadably matched with the screw rod, the connecting slide plate is slidably arranged in the trapezoidal wide groove through the screw rod, the connecting slide plate is a trapezoidal structure, and the upper end of the connecting slide plate is fixed to the drilling seat.

[0008] Preferably, the clamping assembly includes two movable slides and two clamping plates, the top of the mounting plate is symmetrically provided with two through grooves, the two movable slides are slidably arranged on both sides of the mounting plate, the clamping plate is installed on the side walls of the movable slide, a trapezoidal slider is fixed at the bottom center of the movable slide, the trapezoidal slider is divided into a large end and a small end according to the area of ​​the top surface, the large end of the trapezoidal slider passes through the through groove and is slidably arranged at the bottom of the mounting plate, and a movable assembly for pulling the two movable slides to slide is also arranged in the equipment cavity.

[0009] Preferably, the moving assembly includes two connecting rods, a connecting plate and two driving motors installed on the bottom wall of the equipment cavity, the connecting plate is fixed on the output shaft of the two driving motors, the two connecting rods are respectively hinged on both sides of the connecting plate, and the side of the connecting rod away from the connecting plate is hingedly matched with the trapezoidal slider.

[0010] Preferably, a trapezoidal slot is provided on the top side wall of the movable slide plate, a trapezoidal fixing block is fixed on the side wall of the clamping plate, the trapezoidal fixing block cooperates with the trapezoidal slot, and the trapezoidal fixing block is fixed in the trapezoidal slot by bolts.

[0011] Preferably, the mounting plate is a circular structure, an annular groove is provided on the top of the drilling seat, and a plurality of rollers are rotatably provided on the bottom of the mounting plate, and the rollers are arranged in the annular groove.

[0012] Preferably, one end of the screw rod passes through the base and is fixed with a hand wheel.

[0013] Beneficial effect: when it is necessary to drill holes in the centrifugal pump casing, the centrifugal pump can be first installed on the mounting plate through the clamping assembly, and the centrifugal pump can be fixed by the clamping assembly. After the centrifugal pump is installed, the driving assembly is started to drive the drilling seat and the mounting plate to move, and the centrifugal pump is further driven to move, so that the drill bit of the drilling machine body corresponds to the position to be processed of the centrifugal pump. When the hole processing of one position of the centrifugal pump is completed, the centrifugal pump casing can be directly started without disassembling the centrifugal pump casing, and the output shaft of the driving motor drives the gear 1 and the inner gear ring to rotate, and the mounting plate is further rotated, so that the centrifugal pump can be rotated, thereby realizing the drilling processing of the centrifugal pump on the same circumference, improving the processing efficiency, and the centrifugal pump does not need cumbersome operations to correspond to the drill bit;

[0014] The clamping plate used for clamping the centrifugal pump is slidably arranged so that centrifugal pumps of different sizes can be clamped and fixed, and the clamping plate and the movable slide plate are fixed by bolts, so centrifugal pumps of different shapes can be fixed by replacing clamping plates of different shapes. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of an embodiment;

[0016] Figure 2 The schematic diagram of the top view of the base is used to show the structure of the embodiment;

[0017] Figure 3 The embodiment is used to show the top view of the drilling seat;

[0018] Figure 4 This is a schematic diagram of the internal structure of the drilling seat used in the embodiment;

[0019] Figure 5 This is a schematic diagram of the structure of the parts inside the drilling seat used in the embodiment;

[0020] Figure 6 For example, the Figure 3 Schematic diagram of the enlarged structure of A.

[0021] Figure numerals: 1. base; 2. drilling machine body; 3. drilling seat; 4. driving assembly; 5. mounting plate; 6. clamping assembly; 7. inner gear ring; 8. driving motor 1; 9. gear 1; 10. screw; 11. connecting slide; 12. trapezoidal wide groove; 13. moving slide; 14. clamping plate; 15. through groove; 16. trapezoidal slider; 17. moving assembly; 18. connecting rod; 19. connecting plate; 20. driving motor 2; 21. trapezoidal slot; 22. trapezoidal fixing block; 23. annular groove; 24. roller; 25. handwheel. DETAILED DESCRIPTION

[0022] See Figures 1 to 6 As shown, a vertical multi-stage centrifugal pump casing processing device includes a base 1 and a drilling machine body 2 installed on the base 1, a drilling seat 3 is installed on the base 1, a mounting plate 5 is rotatably provided on the top of the drilling seat 3, and a clamping assembly 6 for clamping the centrifugal pump is provided on the mounting plate 5. When the centrifugal pump needs to be processed, the centrifugal pump is first clamped by the clamping assembly 6 to facilitate subsequent drilling processing.

[0023] The clamping assembly 6 includes two movable slides 13 and two clamping plates 14. Two through grooves 15 are symmetrically provided on the top of the mounting plate 5. The two movable slides 13 are slidably arranged on both sides of the mounting plate 5 respectively. The clamping plate 14 is installed on the side walls of the movable slide 13. A trapezoidal slider 16 is fixed to the bottom center of the movable slide 13. The trapezoidal slider 16 is divided into a large end and a small end according to the area of ​​the top surface. The large end of the trapezoidal slider 16 passes through the through groove 15 and is slidably arranged at the bottom of the mounting plate 5. A movable assembly 17 for pulling the two movable slides 13 to slide is also provided in the equipment cavity. In the process of clamping the centrifugal pump, the centrifugal pump is first placed between the two clamping plates 14. The two movable slides 13 are mobilized to slide through the movable assembly 17 so that the two clamping plates 14 can be driven to slide, and the clamping of the centrifugal pump is achieved through the clamping plates 14.

[0024] The moving assembly 17 includes two connecting rods 18, a connecting plate 19 and a driving motor 20 installed on the bottom wall of the equipment cavity. When it is necessary to drive the two moving slides 13 to slide, the driving motor 20 can be started. The connecting plate 19 is fixed on the output shaft of the driving motor 20, and the connecting plate 19 is driven to rotate by the output shaft of the driving motor 20. The two connecting rods 18 are respectively hinged on both sides of the connecting plate 19. The rotation of the connecting plate 19 will drive the two connecting rods 18 to rotate. The side of the connecting rod 18 away from the connecting plate 19 is hinged to the trapezoidal slider 16. The connecting rod 18 can pull the trapezoidal slider 16 to slide in the through groove 15, and the through groove 15 can realize the limited sliding of the trapezoidal slider 16, and the trapezoidal slider 16 can drive the moving slide 13 to slide.

[0025] A trapezoidal slot 21 is provided on the top side wall of the movable slide 13, and a trapezoidal fixing block 22 is fixed on the side wall of the clamping plate 14. The trapezoidal fixing block 22 cooperates with the trapezoidal slot 21, and the trapezoidal fixing block 22 is fixed in the trapezoidal slot 21 by bolts. The clamping plate 14 used to clamp the centrifugal pump is slidingly arranged so that centrifugal pumps of different sizes can be clamped and fixed, and the clamping plate 14 and the movable slide 13 are fixed by bolts. Therefore, centrifugal pumps of different shapes can be fixed by replacing the clamping plates 14 with different shapes.

[0026] The drilling seat 3 is slidably set on the base 1, and a driving component 4 is provided on the base 1 for driving the drilling seat 3 to slide. When the centrifugal pump is installed, the driving component 4 is started to drive the drilling seat 3 and the mounting plate 5 to move, and further drive the movement of the centrifugal pump, so that the drill bit of the drilling machine body 2 corresponds to the position to be processed by the centrifugal pump.

[0027] The driving assembly 4 includes a screw rod 10 and a connecting slide plate 11. A trapezoidal wide groove 12 is provided on the top of the base 1. The screw rod 10 is rotatably arranged in the trapezoidal wide groove 12. The connecting slide plate 11 is threadedly matched with the screw rod 10. The connecting slide plate 11 is slidably arranged in the trapezoidal wide groove 12 through the screw rod 10. The connecting slide plate 11 is a trapezoidal structure. The upper end of the connecting slide plate 11 is fixed to the drilling seat 3. One end of the screw rod 10 passes through the base 1 and is fixed with a handwheel 25. When it is necessary to drive the drilling seat 3 to move, the handwheel 25 can be manually rotated to drive the screw rod 10 to rotate. The rotation of the screw 10 will drive the connecting slide plate 11 to slide in the trapezoidal wide groove 12, so that the connecting slide plate 11 will drive the drilling seat 3 to move together, and further drive the movement of the centrifugal pump, so that the drill bit of the drilling machine body 2 corresponds to the position to be processed by the centrifugal pump.

[0028] An equipment cavity is provided at the top of the drilling seat 3, an inner gear ring 7 is installed at the bottom of the mounting plate 5, a driving motor 8 is installed on the inner bottom wall of the equipment cavity, a gear 9 is installed on the output shaft of the driving motor 8, and the inner gear ring 7 is meshed with the gear 9. When the hole processing at one position of the centrifugal pump is completed, the driving motor 8 can be directly started without disassembling the centrifugal pump casing, and the gear 9 is driven to rotate by the output shaft of the driving motor 8, and the inner gear ring 7 meshed with it is driven to rotate by the gear 9, and the inner gear ring 7 can adjust the mounting plate 5 to rotate, thereby realizing drilling processing at different positions on the centrifugal pump.

[0029] The mounting plate 5 is a circular structure. By designing it to be circular, the subsequent rotation of the mounting plate 5 is facilitated. An annular groove 23 is provided on the top of the drilling seat 3, and a plurality of rollers 24 are rotatably provided at the bottom of the mounting plate 5. The rollers 24 are arranged in the annular groove 23. The mounting plate 5 will drive the rollers 24 to rotate in the annular groove 23 during the rotation process. By installing the rollers 24, the friction of the mounting plate 5 during rotation can be reduced, which facilitates the rotation of the mounting plate 5.

[0030] Working principle: When drilling a hole on a centrifugal pump, the centrifugal pump is first clamped by the clamping assembly 6. The clamping assembly 6 is adjustable so that centrifugal pumps of different sizes can be clamped and fixed, and the clamping plate 14 and the movable slide 13 are fixed by bolts. Therefore, the centrifugal pumps of different shapes can be fixed by replacing the clamping plates 14 of different shapes, thereby improving the adaptability of the processing device. After the centrifugal pump is clamped, the position of the drilling seat 3 can be adjusted, and the centrifugal pump is driven to move by the drilling seat 3, so that the position to be processed of the centrifugal pump can be matched with the drill position of the drilling machine body 1 for subsequent processing. After the hole processing at one position is completed, the mounting plate 5 can be rotated so that the centrifugal pump can be rotated, thereby realizing the drilling processing of the centrifugal pump on the same circumference, thereby improving the processing efficiency, and the centrifugal pump does not need cumbersome operations to match the drill bit.

Claims

1. A vertical multi-stage centrifugal pump casing processing device, comprising a base (1) and a drilling machine body (2) mounted on the base (1), characterized in that: A drilling seat (3) is installed on the base (1), the drilling seat (3) is slidably arranged on the base (1), a driving component (4) for driving the drilling seat (3) to slide is arranged on the base (1), a mounting plate (5) is rotatably arranged on the top of the drilling seat (3), a clamping component (6) for clamping a centrifugal pump is arranged on the mounting plate (5), an equipment cavity is opened on the top of the drilling seat (3), an inner gear ring (7) is installed at the bottom of the mounting plate (5), a driving motor 1 (8) is installed on the inner bottom wall of the equipment cavity, a gear 1 (9) is installed on the output shaft of the driving motor 1 (8), and the inner gear ring (7) is gear-engaged with the gear 1 (9).

2. A vertical multi-stage centrifugal pump casing processing device according to claim 1, characterized in that: The driving assembly (4) comprises a screw rod (10) and a connecting slide plate (11); a trapezoidal wide groove (12) is provided on the top of the base (1); the screw rod (10) is rotatably arranged in the trapezoidal wide groove (12); the middle position of the connecting slide plate (11) is threadedly matched with the screw rod (10); the connecting slide plate (11) is slidably arranged in the trapezoidal wide groove (12) through the screw rod (10); the connecting slide plate (11) is a trapezoidal structure; the upper end of the connecting slide plate (11) is fixed to the drilling seat (3).

3. A vertical multi-stage centrifugal pump casing processing device according to claim 1, characterized in that: The clamping assembly (6) comprises two movable slides (13) and two clamping plates (14). Two through grooves (15) are symmetrically provided on the top of the mounting plate (5). The two movable slides (13) are respectively slidably arranged on the two sides of the mounting plate (5). The clamping plates (14) are installed on the side walls of the movable slide (13). A trapezoidal slider (16) is fixed at the center of the bottom of the movable slide (13). The trapezoidal slider (16) is divided into a large end and a small end according to the area of ​​the top surface. The large end of the trapezoidal slider (16) passes through the through groove (15) and is slidably arranged at the bottom of the mounting plate (5). A movable assembly (17) for pulling the two movable slides (13) to slide is also provided in the equipment cavity.

4. A vertical multi-stage centrifugal pump casing processing device according to claim 3, characterized in that: The moving assembly (17) comprises two connecting rods (18), a connecting plate (19) and a second driving motor (20) mounted on the bottom wall of the equipment cavity, wherein the connecting plate (19) is fixed on the output shaft of the second driving motor (20), and the two connecting rods (18) are respectively hinged on both sides of the connecting plate (19), and the side of the connecting rod (18) away from the connecting plate (19) is hingedly matched with the trapezoidal slider (16).

5. A vertical multi-stage centrifugal pump casing processing device according to any one of claims 3 or 4, characterized in that: A trapezoidal slot (21) is provided on the top side wall of the movable slide plate (13), a trapezoidal fixing block (22) is fixed on the side wall of the clamping plate (14), the trapezoidal fixing block (22) cooperates with the trapezoidal slot (21), and the trapezoidal fixing block (22) is fixed in the trapezoidal slot (21) by means of bolts.

6. A vertical multi-stage centrifugal pump casing processing device according to claim 5, characterized in that: The mounting plate (5) is a circular structure, an annular groove (23) is provided on the top of the drilling seat (3), and a plurality of rollers (24) are rotatably provided on the bottom of the mounting plate (5), and the rollers (24) are arranged in the annular groove (23).

7. A vertical multi-stage centrifugal pump casing processing device according to claim 2, characterized in that: One end of the screw rod (10) passes through the base (1) and is fixed with a hand wheel (25).

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