Spraying machine for inner wall of stator of screw pump

Abstract

The utility model discloses a screw pump stator inner wall spraying machine which comprises a spraying tank, the output end of the spraying tank is connected with an extension pipe, the other end of the extension pipe is provided with a spraying head, a sliding frame is arranged below the extension pipe, and a plurality of supporting plates arranged in a straight line are arranged on the side, close to the spraying head, of the sliding frame. A base is arranged below the supporting plate, a limiting cylinder is fixedly arranged at the top of the base corresponding to the supporting plate, and the bottom of the outer wall of the supporting plate is sleeved with the limiting cylinder. The utility model relates to the technical field of screw pump production, the spraying machine can realize centering placement of a stator through the arrangement of the supporting block, and can realize concentric adjustment of the stator on the supporting block and the extension pipe through the additional arrangement of the liftable supporting plate, so that stators with different sizes can be processed by the spraying machine instead of a traditional cushion block, and the production efficiency is improved. And the application range of the spraying machine is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of screw pump production, in particular to a screw pump stator inner wall spraying machine. Background Art

[0002] The screw pump is a single screw transport pump. Its main working parts are the eccentric spiral screw (called the rotor) and the screw bushing with a double-line spiral surface on the inner surface (called the stator). Its working principle is that when the motor drives the pump shaft to rotate, the screw rotates around its own axis on the one hand, and rolls along the inner surface of the bushing on the other hand, thus forming a sealed chamber of the pump. During the manufacturing process of the stator of the screw pump, it is necessary to use a sprayer to sandblast and shot blast its inner wall so that the stator can meet the use requirements of the screw pump. At present, the sprayer is equipped with a bracket for placing the stator, and the spray tank and the extension tube are driven by a trolley to move horizontally, so that the extension tube with a nozzle can be inserted into the inner cavity of the stator. During the return process, the inner wall of the stator is sprayed by the nozzle, so that the inner wall spraying of the stator can be completed at one time. However, due to the different specifications of the stator, when stators of different diameters are placed on a fixed bracket, the extension tube and the stator will not be concentric. The existing solution is to use different pads to achieve the concentric adjustment of the stator and the extension tube. Then the pads of different specifications can only be used for stators of one size, which leads to certain limitations of this concentric adjustment method. To this end, we provide a screw pump stator inner wall spraying machine to solve the above problem. Utility Model Content

[0003] In order to solve the above-mentioned problem, that is, to solve the problem raised by the above-mentioned background technology, the utility model proposes a screw pump stator inner wall sprayer, including a spray tank, the output end of the spray tank is connected to an extension tube, the other end of the extension tube is equipped with a nozzle, a sliding frame is arranged below the extension tube, and a plurality of support plates arranged in a line are provided on the side of the sliding frame close to the nozzle, a base is provided below the support plate, and a limiting cylinder is fixedly provided on the top of the base corresponding to the support plate, and the limiting cylinder is sleeved on the bottom of the outer wall of the support plate.

[0004] Preferably, a screw is rotatably provided in the inner cavity of the base along the length direction, a handwheel is fixedly provided at one end of the screw, and a threaded sleeve is threadedly connected to the outer wall of the screw corresponding to one side of each support plate, a rocker is rotatably provided on the outer wall of the threaded sleeve, the rocker is slidably connected to the inner wall of the through groove corresponding to the top of the base, and the top end of the rocker is rotatably provided on the corresponding outer wall of the support plate.

[0005] Preferably, the outer wall of the support plate and the inner cavity of the limiting cylinder are both designed to be rectangular, and a concave groove block is provided on the top of the support plate.

[0006] Preferably, the spray tank is installed on a trolley, a slide rail parallel to a plurality of support plates is provided at the bottom of the trolley, and the wheels of the trolley roll on the slide rail.

[0007] Preferably, the sliding frame is provided with a plurality of pulleys arranged in a line and parallel to the plurality of support plates, the plurality of pulleys are mounted on the top of the sliding frame through mounting seats, and the extension tube is placed inside the grooves of the plurality of pulleys.

[0008] Preferably, purification boxes are provided above the base at both ends of the spraying.

[0009] The beneficial technical effect of the utility model is that the sprayer can realize the centering placement of the stator by setting the support block, and realize the concentric adjustment of the stator on the support block and the extension tube by adding a liftable support plate, so that stators of different sizes can be processed by the sprayer, replacing the traditional pad, so that the application range of the sprayer is wider. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 The main structural schematic diagram of the utility model is shown.

[0011] Figure 2 A schematic cross-sectional structure diagram of the base of the utility model is shown.

[0012] Figure 3 A three-dimensional structural schematic diagram of the support plate of the utility model is shown.

[0013] Figure numerals: 1, spray can; 11, extension tube; 111, nozzle; 12, trolley; 121, slide rail; 2, sliding frame; 21, pulley; 211, mounting seat; 3, support plate; 31, base; 311, through groove; 32, limiting cylinder; 33, screw; 331, hand wheel; 34, threaded sleeve; 35, rocker; 36, support block; 4, purification box. DETAILED DESCRIPTION

[0014] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the protection scope of the present invention.

[0015] The utility model proposes a screw pump stator inner wall spraying machine, comprising a spray tank 1, an output end of the spray tank 1 is connected to an extension tube 11, the other end of the extension tube 11 is installed with a nozzle 111, the length of the extension tube 11 is greater than the length of the stator, so that the extension tube 11 can completely penetrate the inner cavity of the stator and use the nozzle 111 for spraying, a sliding frame 2 is arranged below the extension tube 11, the sliding frame 2 is used to mount the extension tube 11, so that the extension tube 11 is transversely moved and then enters the inner cavity of the stator, a plurality of support plates 3 arranged in a line are arranged on one side of the sliding frame 2 close to the nozzle 111, a base 31 is provided below the support plate 3, a limiting cylinder 32 is fixedly provided on the top of the base 31 corresponding to the support plate 3, the limiting cylinder 32 is sleeved on the bottom of the outer wall of the support plate 3, the base 31 serves as a bearing base to make the plurality of limiting cylinders 32 at the same height, and by using the cooperation of the limiting cylinder 32 and the support plate 3, the height of the support plate 3 can be adjusted concentrically with the extension tube 11 according to stators of different diameters.

[0016] The hand wheel 331 is fixedly provided at one end of the screw 33, and the user can drive the screw 33 to rotate according to the hand wheel 331, and the outer wall of the screw 33 is threadedly connected with a threaded sleeve 34 on one side corresponding to each support plate 3, and the rotating screw 33 can drive the threaded sleeve 34 to move horizontally, and the outer wall of the threaded sleeve 34 is rotatably provided with a rocker 35 through a pin shaft, and the rocker 35 is slidably connected to the inner wall of the through groove 311 corresponding to the top of the base 31, and the top end of the rocker 35 is arranged on the corresponding outer wall of the support plate 3 through a pin shaft, and the horizontal movement of the threaded sleeve 34 can drive the rocker 35 to adjust the tilt angle, thereby driving the support plate 3 to move longitudinally, thereby realizing the height position locking of the support plate 3.

[0017] Specifically, the outer wall of the support plate 3 and the inner cavity of the limiting cylinder 32 are both rectangular in design, and the design purpose is to prevent the support plate 3 from rotating in the limiting cylinder 32, thereby achieving the stability of the support plate 3 carrying the stator, and an inwardly concave groove block is provided on the top of the support plate 3, and the top groove of the groove block is designed as an inverted triangle, so that the stator can be aligned with the extension tube 11.

[0018] Specifically, the spray tank 1 is installed on the trolley 12, and a slide rail 121 parallel to the multiple pallets 3 is set at the bottom of the trolley 12. The wheels of the trolley 12 roll on the slide rail 121. Through the cooperation of the trolley 12 and the slide rail 121, the spray tank 1, the extension tube 11 and the nozzle 111 can be stably moved.

[0019] Specifically, the sliding frame 2 is provided with a plurality of pulleys 21 which are arranged in a line and parallel to the plurality of support plates 3. The plurality of pulleys 21 are installed on the top of the sliding frame 2 through a mounting seat 211. The extension tube 11 is placed inside the grooves of the plurality of pulleys 21. By providing the pulley 21, the sliding friction of the extension tube 11 can be converted into rolling friction.

[0020] Specifically, a purification box 4 is provided above the base 31 at the two end points of the spraying. The purification box 4 is fixed to the ground by a pillar. The purification box 4 is composed of an induced draft fan and a purifier. The mist paint and gas generated during spraying can be absorbed and purified in the purifier, thereby ensuring the indoor processing environment.

[0021] According to the personnel in this field, all the electrical parts and components in this case are universal standard parts or components known to the technical personnel in this field, and their structures and principles can be known to the technical personnel through technical manuals or through conventional experimental methods. The models are compatible with this solution and can operate normally. All the electrical parts in this case are connected to the power supply adapted to them through wires, and according to the actual situation, a suitable controller is selected to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection is completed in the working order of each electrical component. The detailed connection means are well-known technologies in this field and will not be explained in the electrical control.

[0022] Working principle: When using the sprayer, first place the screw pump stator inside the groove of the support block 36, with the two ends of the stator respectively located in the inner cavities of the two purification boxes 4, and then rotate the screw 33 through the hand wheel 331 according to the diameter of the stator. The rotating screw 33 can drive the rocker 35 to swing through the threaded connection with the threaded sleeve 34, and then use the tilt support angle of the rocker 35 to control the lifting and lowering of the support plate 3, so that the support plate 3 drives the height of the support block 36 and the stator, so that the stator and the extension tube 11 are concentric, and then the trolley 12 is started on the slide rail 121 to move in the opposite direction of the stator, so that the extension tube 11 is inserted into the outer side of the farther end of the inner cavity of the stator, and the nozzle 111 at one end of the extension tube 11 is placed in the corresponding purification box 4, and then the spray tank 1 switch is started and the return switch of the trolley 12 is started, so that the nozzle 111 can be aimed at the inner wall of the stator for return spraying.

[0023] Although the present invention has been described with reference to preferred embodiments, various modifications may be made thereto and parts thereof may be replaced with equivalents without departing from the scope of the present invention. In particular, the various technical features mentioned in the various embodiments may be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

[0024] In the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0025] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0026] The term "comprise" or any other similar term is intended to cover a non-exclusive inclusion, such that a process, article, or apparatus / device that includes a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, article, or apparatus / device.

[0027] So far, the technical solution of the present invention has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it is easy for those skilled in the art to understand that the protection scope of the present invention is obviously not limited to these specific embodiments. Without departing from the principle of the present invention, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the present invention.

Claims

1. A screw pump stator inner wall spraying machine, comprising a spray tank (1), characterized in that: The output end of the spray tank (1) is connected to an extension tube (11), and a nozzle (111) is installed at the other end of the extension tube (11). A sliding frame (2) is arranged below the extension tube (11), and a plurality of support plates (3) arranged in a line are arranged on one side of the sliding frame (2) close to the nozzle (111). A base (31) is arranged below the support plate (3), and a limiting cylinder (32) is fixedly arranged on the top of the base (31) corresponding to the support plate (3), and the limiting cylinder (32) is sleeved on the bottom of the outer wall of the support plate (3).

2. A screw pump stator inner wall spraying machine according to claim 1, characterized in that: A screw rod (33) is rotatably arranged in the inner cavity of the base (31) along the length direction, a hand wheel (331) is fixedly arranged at one end of the screw rod (33), and a threaded sleeve (34) is threadedly connected to one side of the outer wall of the screw rod (33) corresponding to each support plate (3), and a rocker (35) is rotatably arranged on the outer wall of the threaded sleeve (34), the rocker (35) is slidably connected to the inner wall of the through groove (311) corresponding to the top of the base (31), and the top end of the rocker (35) is rotatably arranged on the outer wall of the corresponding support plate (3).

3. A screw pump stator inner wall spraying machine according to claim 2, characterized in that: The outer wall of the support plate (3) and the inner cavity of the limiting cylinder (32) are both designed to be rectangular, and a concave groove block is provided on the top of the support plate (3).

4. The screw pump stator inner wall spraying machine according to claim 1, characterized in that: The spray tank (1) is installed on a trolley (12); a slide rail (121) parallel to a plurality of support plates (3) is arranged at the bottom of the trolley (12); and the wheels of the trolley (12) roll on the slide rail (121).

5. The screw pump stator inner wall spraying machine according to claim 1, characterized in that: The sliding frame (2) is provided with a plurality of pulleys (21) arranged in a line and parallel to the plurality of support plates (3); the plurality of pulleys (21) are mounted on the top of the sliding frame (2) through a mounting seat (211); and the extension tube (11) is placed inside the grooves of the plurality of pulleys (21).

6. The screw pump stator inner wall spraying machine according to claim 1, characterized in that: Purification boxes (4) are provided above the base (31) at both ends of the spraying.

Images