Screw pump stator speed reduction shaft drilling positioning device

Abstract

The utility model discloses a screw pump stator speed reduction shaft drilling positioning device, which relates to the technical field of drilling processing, and comprises a fixing frame, a rotating rod is rotatably connected in the fixing frame, one end of the rotating rod far away from the fixing frame is fixedly connected with a fixing plate, and the fixing plate is fixedly connected with a screw pump. The surface of the fixing plate is slidably connected with two fixing frames, the surface structures of the two fixing frames are the same, the interior of the fixing plate is rotatably connected with a two-way threaded rod, the interiors of the two fixing frames are in threaded connection with the surface of the two-way threaded rod, and threads in the two fixing frames are matched with threads at the two ends of the two-way threaded rod correspondingly. According to the drilling and positioning device for the screw pump stator speed reduction shaft, through a vertical fixing mode, a worker can conveniently hold drilling equipment by hand to drill the speed reduction shaft, the distance between the two fixing frames is adjusted by rotating the two-way threaded rod, the speed reduction shafts of different specifications can be conveniently fixed, and the worker can conveniently use the drilling and positioning device.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling processing, in particular to a drilling positioning device for a stator reduction shaft of a screw pump. Background Art

[0002] The stator of the screw pump is an important part that plays a major role in the screw pump. The stator of the screw pump is composed of multiple accessories. The reduction shaft is one of the accessories, which is used to connect with the drive mechanism to adjust the speed of the screw pump stator.

[0003] Patent number: CN10805474U, proposes a screw pump stator reduction shaft drilling positioning device with simple structure, low manufacturing cost, firm positioning, reduced processing error, and easy operation.

[0004] However, during the process of processing the screw pump stator with this equipment, the staff is required to hold the punching equipment and punch the screw pump stator horizontally. However, the punching equipment is controlled horizontally. Since the object is held horizontally, it is not convenient for people to control the applied force. When pressing and punching the screw pump stator, the punching equipment is very likely to tilt, which in turn causes the holes processed in the screw pump stator to be tilted. Therefore, a screw pump stator reduction shaft drilling and positioning device is proposed to solve the above problem. Utility Model Content

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art and to provide a screw pump stator reduction shaft drilling and positioning device that can solve the problems of the background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a drilling and positioning device for a stator reduction shaft of a screw pump, comprising a fixed frame, the internal rotation of the fixed frame is connected to a rotating rod, the end of the rotating rod away from the fixed frame is fixedly connected to a fixed plate, the surface of the fixed plate is slidingly connected to two fixed frames, the surface structures of the two fixed frames are the same, the internal rotation of the fixed plate is connected to a bidirectional threaded rod, the interiors of the two fixed frames are threadedly connected to the surface of the bidirectional threaded rod, and the threads inside the two fixed frames respectively match the threads at both ends of the bidirectional threaded rod.

[0007] Preferably, the interior of the fixing frame is slidably connected to a clamping plate, the interior of the clamping plate is threadedly connected to a threaded rod, the threaded rod passes through the surface of the fixing frame, and the surface of the threaded rod is rotatably connected to the interior of the fixing frame.

[0008] Preferably, a connecting rod is fixedly connected to the surface of one of the threaded rods, the other end of the connecting rod is slidably connected to the inside of the other threaded rod, and the connecting rod is arranged in a square shape.

[0009] Preferably, a limiting groove is provided on the inner wall of the fixing frame, and the inner wall of the limiting groove is slidably connected to the surface of the clamping plate.

[0010] Preferably, a limiting groove is provided on the surface of the clamping plate, a fixing rod is fixedly connected to the surface of the fixing frame, and a ring plate is fixedly connected to the surface of the fixing rod.

[0011] Preferably, a slot is provided inside the fixing frame, and the slot is arranged in the shape of three-quarters of a circle, and a limiting block is fixedly connected to the surface of the rotating rod, and the limiting block is arranged in the shape of one-quarter.

[0012] Preferably, a protective shell is fixedly connected to the surface of the fixing frame, the rotating rod passes through the interior of the protective shell, and the interior of the fixing frame is rotatably connected to a driving rod.

[0013] Preferably, the surface of the rotating rod located inside the protective shell is fixedly connected to a worm gear, the surface of the driving rod located inside the protective shell is fixedly connected to a worm, and the surface of the worm is meshed with the surface of the driving rod.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) The screw pump stator reduction shaft drilling and positioning device is fixed vertically, which makes it easy for workers to use handheld drilling equipment to drill holes in the reduction shaft, and the distance between the two fixed frames can be adjusted by rotating the bidirectional threaded rod, which is convenient for fixing reduction shafts of different specifications and convenient for workers to use.

[0016] (2) The screw pump stator reduction shaft drilling and positioning device, through the setting of the limit block and the slot, allows the rotating rod to only flip 180 degrees when rotating, so that the rotating rod drives the reduction shaft fixed on the fixed plate to rotate 180 degrees. Therefore, it is not necessary to disassemble and replace the reduction shaft after processing one side of the reduction shaft, and then process the other side, which is convenient for the staff to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0018] Figure 1 It is a structural diagram of the utility model;

[0019] Figure 2 For this utility model Figure 1 Schematic diagram of the enlarged structure of A in the middle;

[0020] Figure 3 This is a schematic diagram of the internal structure of the protective shell of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the fixing frame of the utility model.

[0022] Figure numerals: 1, fixed frame; 2, rotating rod; 3, fixed plate; 4, fixed frame; 5, driving rod; 6, connecting rod; 7, fixed rod; 8, bidirectional threaded rod; 9, ring plate; 10, slot; 11, clamping plate; 12, limiting groove; 13, threaded rod; 14, limiting groove; 15, protective shell; 16, limiting block; 17, worm gear; 18, worm. DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0024] See also Figure 1-4 The utility model provides a technical solution: a drilling and positioning device for the stator reduction shaft of a screw pump, including a fixing frame 1, the internal rotation connection of the fixing frame 1 is connected to a rotating rod 2, the rotating rod 2 is fixedly connected to a fixing plate 3 at one end away from the fixing frame 1, and the surface of the fixing plate 3 is slidingly connected to two fixing frames 4, the two fixing frames 4 have the same surface structure, the internal rotation connection of the fixing plate 3 is connected to a bidirectional threaded rod 8, the interiors of the two fixing frames 4 are both threadedly connected to the surface of the bidirectional threaded rod 8, and the threads inside the two fixing frames 4 match the threads at both ends of the bidirectional threaded rod 8 respectively.

[0025] When the two ends of the reduction shaft are inserted into the interior of the two fixed frames 4, the bidirectional threaded rod 8 is then rotated, and since the surface of the fixed frame 4 is slidingly connected to the surface of the fixed plate 3, the two fixed frames 4 will not rotate with the bidirectional threaded rod 8 under the restriction of the fixed plate 3, but will move relative to or away from each other on the surface of the fixed plate 3 as the bidirectional threaded rod 8 rotates, and then the two fixed frames 4 are stretched apart to limit and fix the reduction shaft, and then through the vertical fixing method, it is convenient for the staff to use the handheld drilling equipment to drill holes in the reduction shaft, and the bidirectional threaded rod 8 is rotated to adjust the distance between the two fixed frames 4, which is convenient for fixing reduction shafts of different specifications and convenient for the staff to use.

[0026] The interior of the fixed frame 4 is slidably connected to a splint 11, and the interior of the splint 11 is threadedly connected to a threaded rod 13. The threaded rod 13 passes through the surface of the fixed frame 4, and the surface of the threaded rod 13 is rotatably connected to the interior of the fixed frame 4. A connecting rod 6 is fixedly connected to the surface of one of the threaded rods 13, and the other end of the connecting rod 6 is slidably connected to the interior of another threaded rod 13, and the connecting rod 6 is arranged in a square shape.

[0027] When the threaded rod 13 is rotated, the clamping plate 11 conflicts with the inside of the fixed frame 4, and the fixed frame 4 limits the clamping plate 11. The clamping plate 11 will not rotate with the threaded rod 13, but will slide inside the fixed frame 4 as the threaded rod 13 rotates. Since the connecting rod 6 is set to a square shape, and the connecting rod 6 is connected to the internal sliding of the two threaded rods 13, it will not block the relative or opposite movement of the two fixed frames 4. The threaded rod 13 drives the threaded rod 13 inside the other fixed frame 4 to rotate, so that the clamping plate 11 inside the other fixed frame 4 slides, and then by rotating the threaded rod 13, the clamping plates 11 inside the two fixed frames 4 slide to squeeze and fix the deceleration shaft inserted into the fixed frame 4, thereby further improving the fixing effect of the deceleration shaft.

[0028] The inner wall of the fixing frame 4 is provided with a limiting groove 14, and the inner wall of the limiting groove 14 is slidably connected to the surface of the clamping plate 11. The setting of the limiting groove 14 limits the clamping plate 11, thereby preventing the clamping plate 11 from shaking during the sliding process.

[0029] A limiting groove 12 is provided on the surface of the splint 11, a fixing rod 7 is fixedly connected to the surface of the fixing frame 4, and a ring plate 9 is fixedly connected to the surface of the fixing rod 7. By setting the limiting groove 12 and the ring plate 9, the drill position of the punching equipment is limited and fixed, thereby reducing the tilting of the punching equipment and avoiding the skewness of the holes punched by the deceleration shaft.

[0030] A slot 10 is provided inside the fixing frame 1 , and the slot 10 is arranged in the shape of three-quarters of a circle. A limit block 16 is fixedly connected to the surface of the rotating rod 2 , and the limit block 16 is arranged in the shape of one-quarter.

[0031] By setting the limit block 16 and the slot 10, the rotating rod 2 can only flip 180 degrees when rotating, so that the rotating rod 2 drives the deceleration shaft fixed on the fixed plate 3 to rotate 180 degrees. Therefore, there is no need to disassemble and replace the deceleration shaft after processing one side of the deceleration shaft, and then process the other side, which is convenient for staff to use.

[0032] The surface of the fixed frame 1 is fixedly connected to the protective shell 15, the rotating rod 2 passes through the interior of the protective shell 15, and the driving rod 5 is rotatably connected to the interior of the fixed frame 1. The surface of the rotating rod 2 located inside the protective shell 15 is fixedly connected to the worm gear 17, and the surface of the driving rod 5 located inside the protective shell 15 is fixedly connected to the worm 18, and the surface of the worm 18 is meshed with the surface of the driving rod 5.

[0033] When the driving rod 5 is rotated, the driving rod 5 drives the worm 18 to rotate, the worm 18 drives the worm wheel 17 to rotate, and the worm wheel 17 drives the rotating rod 2 to rotate. Due to the self-locking property of the worm wheel 17 and the worm 18, the rotation angle of the rotating rod 2 is fixed, thereby avoiding the rotating rod 2 from rotating during the processing process.

[0034] Working principle: Insert the two ends of the deceleration shaft into the interior of the two fixed frames 4, and then rotate the bidirectional threaded rod 8. Since the surface of the fixed frame 4 is slidingly connected to the surface of the fixed plate 3, the two fixed frames 4 will not rotate with the bidirectional threaded rod 8 under the restriction of the fixed plate 3. Instead, they will move relative to or away from each other on the surface of the fixed plate 3 as the bidirectional threaded rod 8 rotates, and then the two fixed frames 4 are stretched open to limit and fix the deceleration shaft, and then through vertical fixing, it is convenient for the staff to use handheld drilling equipment to drill holes in the deceleration shaft.

[0035] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A screw pump stator reduction shaft drilling and positioning device, comprising a fixing frame (1), characterized in that: The fixing frame (1) is rotatably connected to a rotating rod (2) inside, and one end of the rotating rod (2) away from the fixing frame (1) is fixedly connected to a fixing plate (3), and the surface of the fixing plate (3) is slidably connected to two fixing frames (4), and the two fixing frames (4) have the same surface structure. The fixing plate (3) is rotatably connected to a bidirectional threaded rod (8), and the insides of the two fixing frames (4) are both threadedly connected to the surface of the bidirectional threaded rod (8), and the threads inside the two fixing frames (4) are respectively matched with the threads at both ends of the bidirectional threaded rod (8).

2. The device for drilling and positioning a stator reduction shaft of a screw pump according to claim 1, characterized in that: The interior of the fixed frame (4) is slidably connected to a clamping plate (11), the interior of the clamping plate (11) is threadedly connected to a threaded rod (13), the threaded rod (13) penetrates the surface of the fixed frame (4), and the surface of the threaded rod (13) is rotatably connected to the interior of the fixed frame (4).

3. The device for drilling and positioning a stator reduction shaft of a screw pump according to claim 2, characterized in that: A connecting rod (6) is fixedly connected to the surface of one of the threaded rods (13), the other end of the connecting rod (6) is slidably connected to the inside of the other threaded rod (13), and the connecting rod (6) is arranged in a square shape.

4. A screw pump stator reduction shaft drilling and positioning device according to claim 3, characterized in that: The inner wall of the fixing frame (4) is provided with a limiting groove (14), and the inner wall of the limiting groove (14) is slidably connected to the surface of the clamping plate (11).

5. The device for drilling and positioning a stator reduction shaft of a screw pump according to claim 4, characterized in that: The surface of the clamping plate (11) is provided with a limiting groove (12), the surface of the fixing frame (4) is fixedly connected to a fixing rod (7), and the surface of the fixing rod (7) is fixedly connected to a ring plate (9).

6. A screw pump stator reduction shaft drilling and positioning device according to claim 5, characterized in that: A slot (10) is provided inside the fixing frame (1), and the slot (10) is arranged to be three-quarters of a circle. A limit block (16) is fixedly connected to the surface of the rotating rod (2), and the limit block (16) is arranged to be one-quarter.

7. The device for drilling and positioning a stator reduction shaft of a screw pump according to claim 1, characterized in that: A protective shell (15) is fixedly connected to the surface of the fixed frame (1), the rotating rod (2) penetrates into the interior of the protective shell (15), and a driving rod (5) is rotatably connected to the interior of the fixed frame (1).

8. The device for drilling and positioning a stator reduction shaft of a screw pump according to claim 7, characterized in that: The surface of the rotating rod (2) located inside the protective shell (15) is fixedly connected to a worm wheel (17), and the surface of the driving rod (5) located inside the protective shell (15) is fixedly connected to a worm (18), and the surface of the worm (18) is meshingly connected to the surface of the driving rod (5).

Images