Multi-stage centrifugal pump shell drilling device

Abstract

The utility model relates to the technical field of drilling equipment, in particular to a multi-stage centrifugal pump shell drilling device which comprises a drilling mechanism, and a positioning mechanism is fixedly arranged on the drilling mechanism. According to the clamping device, the first bevel gear and the second bevel gear can be driven to rotate in a meshed mode by rotating the rotating shaft, the second bevel gear can drive the inner threaded barrel to rotate, and therefore the screw can move out of the inner threaded barrel and can drive the shock absorption base and the clamping plate to move, and the moving direction of the shock absorption base is limited by the limiting column when the shock absorption base moves; the two clamping plates are driven to get close to each other, so that the pump shell is conveniently clamped and positioned, subsequent drilling machining is facilitated, the first driving motor drives the straight gear to rotate, the direction adjusting disc can be driven to rotate in the limiting ring, the machining direction can be adjusted when the pump shell is clamped, and multi-hole-site drilling operation is facilitated.

Description

Technical Field

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

[0002] A multistage centrifugal pump is a pump that has multiple impellers installed on the pump shaft and connected in series, so that the liquid passes through each impeller in turn. Under the action of centrifugal force, the energy increases in turn, and finally the highest head is obtained. The basic structure of a multistage centrifugal pump includes the water inlet section, the water outlet section, the middle section, the tail cover, the impeller, the pump body, the pump shaft, the bearing, the sealing ring and the stuffing box. Among them, the impeller is the core part of the multistage pump, with high speed and high output, and the blades on the impeller play a key role. The sealing ring is used to increase the reflux resistance, reduce internal leakage, and delay the wear of the impeller and the pump casing.

[0003] During the production and processing of multi-stage centrifugal pumps, it is necessary to drill holes in the pump casing. Currently, after drilling a hole in the pump casing, the drilling device needs to adjust the position of the pump casing again before drilling the second hole on the pump casing. This will result in low processing efficiency. In addition, there are many holes required on the multi-sided pump casing, and it is necessary to flip the processed side for drilling. It is difficult for the current drilling device to flip the pump casing. Utility Model Content

[0004] The utility model aims to provide a multi-stage centrifugal pump casing drilling device to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multi-stage centrifugal pump casing drilling device, comprising a drilling mechanism, on which a positioning mechanism is fixedly arranged;

[0007] The positioning mechanism includes a steering plate, in which two rotating shafts are symmetrically rotatably connected, the bottom ends of the two rotating shafts are fixedly sleeved with bevel gear 1, the bottom of the bevel gear 1 is meshingly connected with bevel gear 2, an internal threaded cylinder is fixedly sleeved at the center position of the bevel gear 2, a screw is screwed and sleeved in the internal threaded cylinder, the end of the screw is fixedly connected with a shock-absorbing seat, and two sliding rods are symmetrically slidably sleeved in the shock-absorbing seat, a clamping plate is fixedly connected between the ends of the two sliding rods, and an anti-slip pad is fixedly provided on the side wall of the clamping plate, a gear ring is fixedly sleeved on the outside of the steering plate, a spur gear is meshingly connected to one side of the gear ring, and the output end of the drive motor 1 is fixedly connected at the center position of the spur gear.

[0008] Furthermore, a fixing ring is rotatably sleeved on the outer wall of the internally threaded cylinder, the fixing ring is fixedly connected to the steering plate, and the internally threaded cylinder is rotatably connected to the steering plate.

[0009] Furthermore, two limiting columns slidably connected to the steering plate are symmetrically fixedly connected to the outer wall of the shock absorbing seat.

[0010] Furthermore, the ends of the two sliding rods are fixedly connected to return springs, and the ends of the return springs are fixedly connected to the shock absorbing seat.

[0011] Furthermore, an annular slide rail is fixedly sleeved on the outer wall of the steering disk, a limiting ring is slidably sleeved on the outside of the annular slide rail, a rotating frame is fixedly connected to the outside of the limiting ring, two positioning shafts are symmetrically fixedly connected to the outer wall of the rotating frame, fixed plates are rotatably sleeved on the outside of the two positioning shafts, the two fixing plates are fixedly connected to the top of the drilling mechanism, and one end of the positioning shaft is fixedly connected to the output end of the second driving motor.

[0012] Furthermore, the drilling mechanism includes a bearing seat, two sliding grooves are symmetrically provided in the bearing seat, a driving seat is slidably connected in the two sliding grooves, a linear motor is slidably arranged at the bottom of the two driving seats, a profile frame is fixedly connected between the two driving seats, a servo motor is fixedly connected to the side wall of the profile frame, a screw rod is fixedly connected to the output end of the servo motor, a moving block is screwed and sleeved on the screw rod, the moving block is slidably connected to the profile frame, and a hydraulic drilling machine is fixedly arranged at the bottom of the moving block.

[0013] Furthermore, a collecting hopper is fixedly connected to the center of the bearing seat, and a collecting cylinder is screwed and sleeved on the bottom end of the collecting hopper.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. By rotating the rotating shaft, the bevel gear 1 and the bevel gear 2 can be driven to mesh and rotate, so that the bevel gear 2 can drive the internal threaded barrel to rotate, so that the screw can be moved out of the internal threaded barrel, and the screw can drive the shock absorber seat and the clamping plate to move. When the shock absorber seat moves, the limit column limits its moving direction, and the two clamping plates are driven to approach each other, so that the pump casing can be clamped and positioned, which is convenient for subsequent drilling processing. The spur gear is driven to rotate by the driving motor 1, so that the steering plate can be driven to rotate in the limit ring, so that the processing direction can be adjusted when the pump casing is clamped, so as to facilitate multi-hole drilling operations; when the clamping plate is clamping the pump casing, the reset spring will be gradually compressed until the clamping plate and the shock absorbing pad on the side wall of the shock absorber seat conflict with each other, thereby avoiding deformation of the pump casing surface during the process of clamping and positioning the pump casing.

[0016] 2. The output end of the second driving motor can drive the positioning shaft and the rotating frame to rotate between the two fixed plates. Since the limit ring and the rotating frame are fixedly connected, the driving motor 1 is also fixed to the rotating frame, thereby driving the steering plate and the pump casing to flip around the positioning shaft. In this way, drilling operations can be performed on multiple sides of the pump casing, and there is no need to adjust the position of the pump casing again after each processing, thereby improving the processing efficiency of the pump casing and reducing manual labor.

[0017] 3. The linear motor can drive the driving seat and the mold frame to move along the slide slot, thereby driving the hydraulic drilling machine to move. At the same time, the servo motor drives the screw to rotate and drive the moving block to slide on the top of the mold frame. In this way, the hydraulic drilling machine can be driven to move in two vertical and intersecting directions, thereby cooperating with the positioning mechanism to facilitate drilling processing at multiple positions on the pump casing, thereby improving the adjustability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the positioning mechanism structure in the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the steering wheel in the utility model;

[0021] Figure 4 This is a schematic diagram of the clamping plate structure in the utility model;

[0022] Figure 5 It is a structural schematic diagram of the drilling mechanism in the utility model.

[0023] In the figure: 100, positioning mechanism; 101, steering plate; 102, gear ring; 103, spur gear; 104, driving motor 1; 105, rotating frame; 106, limiting ring; 107, annular slide rail; 108, fixing plate; 109, driving motor 2; 110, rotating shaft; 111, bevel gear 1; 112, bevel gear 2; 113, internal threaded cylinder; 114, fixing ring; 115, screw; 116, Shock-absorbing seat; 117, limiting column; 118, sliding rod; 119, reset spring; 120, clamping plate; 121, anti-skid pad; 200, drilling mechanism; 201, bearing seat; 202, slide; 203, driving seat; 204, linear motor; 205, collecting hopper; 206, collecting cylinder; 207, molding frame; 208, servo motor; 209, screw; 210, moving block; 211, hydraulic drilling machine. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 5 In an embodiment of the utility model, a multi-stage centrifugal pump casing drilling device includes a drilling mechanism 200, on which a positioning mechanism 100 is fixedly arranged;

[0026] The positioning mechanism 100 includes a steering plate 101, in which two rotating shafts 110 are symmetrically rotatably connected. The bottom ends of the two rotating shafts 110 are fixedly sleeved with bevel gears 111, and the bottom of the bevel gear 111 is meshedly connected with a bevel gear 2 112. An internal threaded cylinder 113 is fixedly sleeved at the center of the bevel gear 2 112, and a screw 115 is screwed and sleeved in the internal threaded cylinder 113. The end of the screw 115 is fixedly connected to a shock-absorbing seat 116, and two sliding rods 118 are symmetrically slidably sleeved in the shock-absorbing seat 116. A clamping plate is fixedly connected between the ends of the two sliding rods 118. 120, an anti-slip pad 121 is fixedly provided on the side wall of the clamping plate 120, a gear ring 102 is fixedly sleeved on the outside of the steering disc 101, a spur gear 103 is meshedly connected to one side of the gear ring 102, and the output end of the drive motor 104 is fixedly connected at the center position of the spur gear 103; two limit columns 117 slidably connected to the steering disc 101 are symmetrically fixedly connected to the outer wall of the shock-absorbing seat 116; a fixing ring 114 is rotatably sleeved on the outer wall of the internal threaded tube 113, the fixing ring 114 is fixedly connected to the steering disc 101, and the internal threaded tube 113 is rotatably connected to the steering disc 101.

[0027] Specifically, by rotating the rotating shaft 110, the bevel gear 111 and the bevel gear 2 112 can be driven to mesh and rotate, so that the bevel gear 2 112 can drive the internal threaded tube 113 to rotate, so that the screw 115 can be moved out of the internal threaded tube 113, and the screw 115 can drive the shock absorber seat 116 and the clamping plate 120 to move. When the shock absorber seat 116 moves, the limit column 117 limits its movement direction, and by driving the two clamping plates 120 to approach each other, it is convenient to clamp and position the pump casing, which is convenient for subsequent drilling processing. By driving the spur gear 103 to rotate by the driving motor 104, the steering plate 101 can be driven to rotate in the limit ring 106, so that the processing direction can be adjusted when the pump casing is clamped, thereby facilitating multi-hole drilling operations.

[0028] Embodiment 1

[0029] like Figure 2As shown, in this embodiment, an annular slide rail 107 is fixedly sleeved on the outer wall of the steering disk 101, a limit ring 106 is slidably sleeved on the outside of the annular slide rail 107, a rotating frame 105 is fixedly connected to the outside of the limit ring 106, two positioning shafts are symmetrically fixedly connected to the outer wall of the rotating frame 105, a fixed plate 108 is rotatably sleeved on the outside of the two positioning shafts, the two fixed plates 108 are fixedly connected to the top of the drilling mechanism 200, and an output end of a driving motor 2 109 is fixedly connected to the end of one positioning shaft.

[0030] In this embodiment, the output end of the second driving motor 109 can drive the positioning shaft and the rotating frame 105 to rotate between the two fixed plates 108. The second driving motor 109 of this device is internally provided with an electromagnetic brake. When the motor stops outputting current, the brake will automatically start to lock the motor shaft, thereby realizing a self-locking function, thereby ensuring the positioning of the rotating frame 105 after rotation adjustment. Since the limit ring 106 is fixedly connected to the rotating frame 105, the driving motor 104 is also fixed to the rotating frame 105, thereby driving the steering disk 101 together with the pump casing to flip around the positioning shaft, so that drilling operations can be performed on multiple sides of the pump casing, and there is no need to adjust the position of the pump casing again after each processing, thereby improving the processing efficiency of the pump casing and reducing manual labor.

[0031] like Figure 4 As shown, in this embodiment, the ends of the two sliding rods 118 are fixedly connected to the return springs 119 , and the ends of the return springs 119 are fixedly connected to the shock absorbing seat 116 .

[0032] In specific implementation, when the clamping plate 120 clamps the pump casing, the return spring 119 will be gradually compressed until the clamping plate 120 and the shock-absorbing pad on the side wall of the shock-absorbing seat 116 collide with each other, thereby avoiding deformation of the pump casing surface during the process of clamping and positioning the pump casing.

[0033] Embodiment 2

[0034] like Figure 5 As shown, in the present embodiment, the drilling mechanism 200 includes a bearing seat 201, in which two slide grooves 202 are symmetrically provided, in which a driving seat 203 is slidably connected, and a linear motor 204 is slidably arranged at the bottom of the two driving seats 203, and a mold frame 207 is fixedly connected between the two driving seats 203, and the side wall of the mold frame 207 is fixedly connected to a servo motor 208, and the output end of the servo motor 208 is fixedly connected to a screw rod 209, and a moving block 210 is screwed and sleeved on the screw rod 209, and the moving block 210 is slidably connected to the mold frame 207, and a hydraulic drilling machine 211 is fixedly arranged at the bottom of the moving block 210; a collecting hopper 205 is fixedly connected at the center position of the bearing seat 201, and a collecting cylinder 206 is screwed and sleeved at the bottom end of the collecting hopper 205.

[0035] During specific implementation, the linear motor 204 can drive the driving seat 203 and the mold frame 207 to move along the slide groove 202, thereby driving the hydraulic drilling machine 211 to move. At the same time, the servo motor 208 drives the screw rod 209 to rotate, which can drive the moving block 210 to slide on the top of the mold frame 207. In this way, the hydraulic drilling machine 211 can be driven to move in two perpendicular and intersecting directions, thereby cooperating with the positioning mechanism 100 to facilitate drilling processing at multiple positions on the pump casing, thereby improving the adjustability of the device.

[0036] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A multi-stage centrifugal pump casing drilling device, characterized in that: It comprises a drilling mechanism (200), on which a positioning mechanism (100) is fixedly arranged; The positioning mechanism (100) comprises a steering wheel (101), wherein the steering wheel (101) is symmetrically rotatably connected with two rotating shafts (110), the bottom ends of the two rotating shafts (110) are fixedly sleeved with a bevel gear 1 (111), the bottom of the bevel gear 1 (111) is meshingly connected with a bevel gear 2 (112), an internal threaded cylinder (113) is fixedly sleeved at the center position of the bevel gear 2 (112), a screw rod (115) is screwed and sleeved in the internal threaded cylinder (113), and the end of the screw rod (115) is fixedly connected to the A shock absorbing seat (116) is provided, and two sliding rods (118) are symmetrically slidably sleeved in the shock absorbing seat (116), and a clamping plate (120) is fixedly connected between the ends of the two sliding rods (118), and an anti-slip pad (121) is fixedly arranged on the side wall of the clamping plate (120), and a gear ring (102) is fixedly sleeved on the outside of the steering plate (101), and a spur gear (103) is meshedly connected to one side of the gear ring (102), and the output end of a driving motor 1 (104) is fixedly connected at the center position of the spur gear (103).

2. A multi-stage centrifugal pump casing drilling device according to claim 1, characterized in that: A fixing ring (114) is rotatably sleeved on the outer wall of the internally threaded cylinder (113); the fixing ring (114) is fixedly connected to the steering disc (101); and the internally threaded cylinder (113) is rotatably connected to the steering disc (101).

3. A multi-stage centrifugal pump casing drilling device according to claim 1, characterized in that: Two limiting posts (117) slidably connected to the steering plate (101) are symmetrically fixedly connected to the outer wall of the shock absorbing seat (116).

4. A multi-stage centrifugal pump casing drilling device according to claim 1, characterized in that: The ends of the two sliding rods (118) are fixedly connected to a return spring (119), and the ends of the return spring (119) are fixedly connected to the shock absorbing seat (116).

5. The multi-stage centrifugal pump casing drilling device according to claim 1, characterized in that: An annular slide rail (107) is fixedly sleeved on the outer wall of the steering disc (101), a limit ring (106) is slidably sleeved on the outside of the annular slide rail (107), a rotating frame (105) is fixedly connected to the outside of the limit ring (106), the first drive motor (104) is fixedly connected to the rotating frame (105), two positioning shafts are symmetrically fixedly connected to the outer wall of the rotating frame (105), the outsides of the two positioning shafts are rotatably sleeved with fixed plates (108), the two fixed plates (108) are fixedly connected to the top of the drilling mechanism (200), and one end of the positioning shaft is fixedly connected to the output end of the second drive motor (109).

6. A multi-stage centrifugal pump casing drilling device according to claim 1, characterized in that: The drilling mechanism (200) comprises a bearing seat (201), wherein two slide grooves (202) are symmetrically provided in the bearing seat (201), a driving seat (203) is slidably connected in the two slide grooves (202), a linear motor (204) is slidably arranged at the bottom of the two driving seats (203), a profile frame (207) is fixedly connected between the two driving seats (203), a servo motor (208) is fixedly connected to the side wall of the profile frame (207), a screw rod (209) is fixedly connected to the output end of the servo motor (208), a moving block (210) is screwed and sleeved on the screw rod (209), the moving block (210) is slidably connected to the profile frame (207), and a hydraulic drilling machine (211) is fixedly arranged at the bottom of the moving block (210).

7. A multi-stage centrifugal pump casing drilling device according to claim 6, characterized in that: A collecting hopper (205) is fixedly connected at the center of the bearing seat (201), and a collecting cylinder (206) is screwed and sleeved on the bottom end of the collecting hopper (205).

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