Rotor surface treatment equipment

Abstract

The invention provides rotor surface treatment equipment, and relates to the technical field of rotor surface treatment.The rotor surface treatment equipment comprises a traction mechanism, a treatment box, a feeding port, a frame, a first groove, a second groove, a supporting part, a guiding piece, a guiding plate and movable blocks, and clamping grooves are formed in the opposite sides of every two adjacent movable blocks correspondingly; u-shaped bottom frames are arranged in the clamping grooves, springs are arranged in every two adjacent movable blocks and between every two oppositely-arranged bottom frames, when the movable blocks are located at the feeding port, all the movable blocks are gathered at the feeding port, the distance between every two adjacent movable blocks is greatly reduced, and the feeding efficiency is improved. Therefore, a worker can conveniently complete placement of all the rotors at one or a few positions so as to improve the placement convenience of the rotors, and after the movable blocks move downwards, all the movable blocks can be far away from each other, so that the distance between the rotors is increased, and it is ensured that the rotors can be effectively passivated.

Description

Technical Field

[0001] This invention relates to the field of rotor surface treatment technology, specifically a rotor surface treatment device. Background Technology

[0002] The rotor in a vacuum pump is the core working component, and its surface quality directly affects the pump's energy efficiency, reliability, and service life. Currently, surface treatment processes for rotors (such as plating, cleaning, phosphating, and passivation) mostly employ static immersion or fixed clamp hoisting methods. In actual batch processing, to improve the passivation quality of the rotors, it is necessary to maintain an appropriate distance between them to prevent a decline in passivation quality due to excessive proximity. However, increasing the distance between rotors results in a larger overall area for the hoisting equipment, making it difficult for workers to place all rotors in one or a few locations. This necessitates moving the rotors back and forth, increasing workload and reducing placement efficiency, which fails to meet operational requirements. Summary of the Invention

[0003] The purpose of this invention is to provide a rotor surface treatment device that aims to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: the rotor surface treatment equipment includes a traction mechanism and a treatment box, wherein the upper end of the treatment box is provided with a feeding port: The processing box has a rectangular frame inside, and the traction mechanism is installed on the processing box. The traction mechanism is used to traction the frame to move upward. The frame has two opposite inner sides with groove 1 and two opposite inner sides with groove 2. The groove 1 and groove 2 are at different heights on the frame. Supporting portions are provided between the two first grooves and between the two second grooves respectively. The number of supporting portions between the two first grooves is greater than the number of supporting portions between the two second grooves. The number of supporting portions between the two second grooves is two. The support includes two sliders and two fixed rods disposed between the two sliders and fixedly connected to the sliders. Guide rods are respectively provided in the first groove and the second groove, and the guide rods are slidably connected to the sliders. Guide wheels are provided on the two outermost sliders of groove one and groove two, and through grooves that communicate with groove one and groove two are respectively opened on the outer side of the frame. The four inner walls of the processing box are each provided with a set of guides. The guides include two guide plates symmetrically arranged on the inner walls of the processing box. The guide plates are arranged from top to bottom as a gathering section, a gradient section and a dispersing section. Two guide wheels located on the same side of the frame move along the inner sides of the two guide plates respectively. At least two movable blocks are slidably connected to each support in the first groove, and the two support parts in the second groove are each slidably connected to the outermost movable block. The movable block has a circular slot, the diameter of which is 1.2-1.5 times the diameter of one end of the rotor shaft; Each of the two adjacent movable blocks has a slot on one side of its opposite side. The slot has a U-shaped bottom frame inside. A spring is provided between the two bottom frames of the two adjacent movable blocks that are positioned opposite each other.

[0005] Preferably, a protrusion is provided on the other side of the bottom frame, and the front end of the protrusion is hemispherical, the front end of the protrusion passing through the slot and entering the interior of the slot.

[0006] Preferably, the outer side of the peripheral movable block is provided with a recessed groove that communicates with the slot. A push rod is slidably connected inside the recessed groove. The front end of the push rod is provided with a hemispherical shape. The front end of the push rod is located inside the slot. An elastic element is provided inside the recessed groove. The elastic element is used to push the front end of the push rod into the interior of the slot.

[0007] Preferably, the upper surface of the movable block has a circumferential array of several support points.

[0008] Preferably, the traction mechanism includes a cover set on the upper and side of the box body. Two upright plates are respectively set on the upper surface of the box body on both sides of the feeding port. A push plate is slidably connected to the outer side of the box body. A lead screw is set inside the cover. A slide block is threadedly connected to the lead screw on the side of the push plate. A motor for driving the lead screw to rotate is set at the bottom of the box body. Three pulleys are arranged sequentially between two adjacent upright plates. Two pulleys are respectively located above two corners of the frame, and the third pulley is located above the push plate. A through hole is opened on the upper surface of the box body. Pull ropes are connected to the four corners of the frame. One end of the pull rope is fixedly connected to the frame, and the other end of the pull rope passes around the pulley and is fixedly connected to the push plate.

[0009] The beneficial effects of this invention are: 1. When the movable block is located at the feeding port, all the movable blocks gather at the feeding port, and the distance between adjacent movable blocks is greatly reduced. This allows the staff to place all the rotors in one or a few locations, thus improving the convenience of rotor placement. Furthermore, when the movable block moves downward, all the movable blocks can move away from each other, increasing the distance between the rotors and ensuring that the rotors can be effectively passivated. 2. Furthermore, when all the moving blocks move away from each other, the elastic potential energy of the spring decreases, the pressure between the protrusion and the rotor decreases, and the passivation solution can penetrate between them more effectively. At the same time, since the diameter of the slot is 1.2-1.5 times the diameter of the rotor shaft, there is also sufficient passivation solution in the slot to ensure that the shaft of the rotor can also be effectively passivated. 3. As the distance between rotors increases, the circulation capacity of the passivation solution in the treatment tank will also increase accordingly. This allows the passivation solution to have more thorough and uniform contact with the rotor surface, and avoids local concentration drops or uneven temperatures, thereby improving the uniformity and consistency of the passivated surface coating. 4. When the frame moves from the transition section to the gathering section, the spring located between the two moving blocks is squeezed, thereby increasing the pressure between the protrusion and the rotor shaft. This keeps the shaft in a nearly upright and stable state, ensuring that the rotor can rise steadily and pass through the feeding port, avoiding the rotor from contacting the inner top wall of the processing box. Attached Figure Description

[0010] Figure 1 It is a 3D diagram of the processed structure.

[0011] Figure 2 This is a top view of the processing equipment after partial cross-section of the casing.

[0012] Figure 3 This is a side view of the processing equipment after partial cross-section of the casing.

[0013] Figure 4 This is a schematic diagram of the spring between two moving blocks.

[0014] Figure 5 This is a schematic diagram after the active blocks have been aggregated.

[0015] Figure 6 This is a schematic diagram of the active blocks after they have been dispersed.

[0016] Figure 7 This is a simplified schematic diagram of the rotor structure.

[0017] In the diagram: 1. Rotor; 2. Processing box; 3. Frame; 4. Groove 1; 5. Groove 2; 6. Slider; 7. Fixed rod; 8. Guide rod; 9. Guide wheel; 10. Through groove; 11. Guide plate; 1101 Gathering section; 1102 Gradient section; 1103 Dispersing section; 12. Movable block; 13. Slot; 14. Base frame; 15. Spring; 16. Protrusion; 17. Top rod; 18. Elastic element; 19. Support point; 20. Cover; 21. Vertical plate; 22. Push plate; 23. Lead screw; 24. Slide seat; 25. Motor; 26. Pulley; 27. Pull rope. Detailed Implementation

[0018] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings.

[0019] Example 1: like Figure 1-7 As shown, when performing surface passivation treatment on rotor 1, the grease and impurities on the surface of rotor 1 need to be cleaned first, and then dried. After the surface of rotor 1 is pretreated, passivation treatment is then performed.

[0020] The processing chamber 2 contains a passivation solution of appropriate height and concentration, such as nitric acid-based solution or citric acid-based solution. When the movable block 12 is at its highest position in the processing chamber 2, the movable block 12 is completely above the passivation solution, and at this time the frame 3 is in contact with the inner top surface of the processing chamber 2.

[0021] When placing rotor 1, the operator needs to insert the shaft at one end of rotor 1 into the slot 13 of movable block 12, and let the shaft of rotor 1 pass through protrusion 16 and top rod 17. Due to the presence of spring 15 and elastic element 18, protrusion 16 and top rod 17 can apply pressure to the shaft of rotor 1, which can improve the stability of rotor 1 when it is placed and prevent it from tilting in slot 13, thus affecting the placement of rotor 1 into the adjacent movable block 12. After rotor 1 is completely placed into slot 13, motor 25 is started by controller. Motor 25 drives lead screw 23 to rotate. Through the threaded connection between lead screw 23 and slide block 24, and the sliding connection between push plate 22 and box, push plate 22 can be driven to move vertically upward. When push plate 22 moves upward, pull rope 27 will tend to slack. However, due to the high self-weight of rotor 1 and frame 3, pull rope 27 will always be taut. Therefore, rotor 1 and frame 3 can move downward smoothly. As the frame 3 moves downward, the guide wheel 9 moves from the gathering section 1101 in the guide plate 11 to the gradient section 1102, and then from the gradient section 1102 to the dispersion section 1103. That is, as the guide wheel 9 moves downward along the guide plate 11, the compressed spring 15 between two adjacent movable blocks 12 begins to push the movable blocks 12 from the center of the frame 3 to the edge side of the frame 3, which increases the distance between two adjacent movable blocks 12. When the distance between the two movable blocks 12 increases, the distance between two adjacent rotors 1 can also increase, so that the surface of each rotor 1 can fully contact the fresh, undepleted passivation solution, the chemical reaction rate is stable, and the thickness and composition of the passivation film formed are more uniform. At the same time, when the passivation solution needs to be heated by the heater, the more dispersed rotors 1 can also make the heat convection uniformly in the passivation solution, avoiding local overcooling or overheating, so as to ensure the passivation quality.

[0022] Furthermore, when the compressive potential energy of the spring 15 is released, the pressure of the spring 15 on the shaft of the rotor 1 through the protrusion 16 is reduced, thereby making it easier for the passivation solution to enter the position where the protrusion 16 contacts the rotor 1.

[0023] Meanwhile, due to the elastic potential energy of the spring 15, when the movable block 12 moves along the fixed rod 7, the spring 15 can adapt to the movement of the movable block 12 in a timely manner through its own extension and contraction, so that the bottom frame 14 can always be located within the movable block 12.

[0024] After the passivation process at the target time is completed, rotor 1 needs to be transferred out. At this point, the controller must first start motor 25, controlling it to rotate in reverse, driving lead screw 23 to rotate. Through the threaded connection between lead screw 23 and slide block 24, push plate 22 moves downwards. When push plate 22 moves downwards, it can drive frame 3 upwards via pull rope 27 and pulley 26. As frame 3 moves upwards, guide wheel 9 can move from bottom to top along guide plate 11, that is, along the dispersing section 1103, the gradual transition section 1102, and the gathering section 1101 of guide plate 11. When guide wheel 9 just enters the gathering section 1101, all... The movable blocks 12 have gathered together, so that all the movable blocks 12 are in the area directly below the feeding port. After the movable blocks 12 have gathered, the spring 15 will be compressed, and the pressure between the protrusion 16 and the shaft of the rotor 1 will increase, so that the rotor 1 can keep upright. When the rotor 1 is upright, the rotor 1 will hardly tilt when the frame 3 continues to move upward, so as to ensure that the rotor 1 can stably pass through the feeding port of the processing box 2. When the upper end of the frame 3 contacts the inner top surface of the processing box 2, the motor 25 stops, and then the staff can transfer the rotor 1 out one by one.

[0025] Limit sensors can be installed on the outside of the housing to control the vertical movement distance of the push plate 22. When the frame 3 moves to the target position, it will automatically stop moving.

[0026] Example 2: The elastic potential energy of the elastic element 18 can cause the front end of the push rod 17 to press the rotor 1, so as to keep the rotor 1 upright. The elastic element 18 can be a compression spring or an elastic rubber component.

[0027] Example 3: The support point 19 on the surface of the movable block 12 can prevent the end face of the rotor 1 from contacting the upper surface of the movable block 12 over a large area, ensuring that the surface of the rotor 1 can be effectively passivated.

[0028] In this application, under normal circumstances, among the various components that can come into contact with the passivation solution, such as the pull rope 27, stainless steel wire rope can be selected, and its surface is passivated. Other components can be made of passivated stainless steel or Teflon material to reduce the impact on the passivation of rotor 1.

[0029] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

Claims

1. A rotor surface treatment device, comprising a traction mechanism and a treatment box, wherein the upper end of the treatment box is provided with a feeding port, characterized in that: The processing box has a rectangular frame inside, and the traction mechanism is installed on the processing box. The traction mechanism is used to traction the frame to move upward. The frame has two opposite inner sides with groove 1 and two opposite inner sides with groove 2. The groove 1 and groove 2 are at different heights on the frame. Supporting portions are provided between the two first grooves and between the two second grooves respectively. The number of supporting portions between the two first grooves is greater than the number of supporting portions between the two second grooves. The number of supporting portions between the two second grooves is two. The support includes two sliders and two fixed rods disposed between the two sliders and fixedly connected to the sliders. Guide rods are respectively provided in the first groove and the second groove, and the guide rods are slidably connected to the sliders. Guide wheels are provided on the two outermost sliders of groove one and groove two, and through grooves that communicate with groove one and groove two are respectively opened on the outer side of the frame. The four inner walls of the processing box are each provided with a set of guides. The guides include two guide plates symmetrically arranged on the inner walls of the processing box. The guide plates are arranged from top to bottom as a gathering section, a gradient section and a dispersing section. Two guide wheels located on the same side of the frame move along the inner sides of the two guide plates respectively. At least two movable blocks are slidably connected to each support in the first groove, and the two support parts in the second groove are each slidably connected to the outermost movable block. The movable block has a circular slot, the diameter of which is 1.2-1.5 times the diameter of one end of the rotor shaft; Each of the two adjacent movable blocks has a slot on one side of its opposite side. The slot has a U-shaped bottom frame inside. A spring is provided between the two bottom frames of the two adjacent movable blocks that are positioned opposite each other.

2. The rotor surface treatment equipment according to claim 1, characterized in that, A protrusion is provided on the other side of the bottom frame. The front end of the protrusion is hemispherical and passes through the slot and enters the interior of the slot.

3. The rotor surface treatment equipment according to claim 2, characterized in that, The outer side of the peripheral movable block is provided with recessed grooves that communicate with the slot. A push rod is slidably connected inside the recessed groove. The front end of the push rod is provided with a hemispherical shape. The front end of the push rod is located inside the slot. An elastic element is provided inside the recessed groove. The elastic element is used to push the front end of the push rod into the interior of the slot.

4. The rotor surface treatment equipment according to claim 1, characterized in that, The upper surface of the movable block has a circular array of several support points.

5. The rotor surface treatment equipment according to claim 1, characterized in that, The traction mechanism includes a cover set on the upper and side of the box body. Two upright plates are respectively set on the upper surface of the box body on both sides of the feeding port. A push plate is slidably connected to the outer side of the box body. A lead screw is set inside the cover. A slide block is set on the side of the push plate and threadedly connected to the lead screw. A motor for driving the lead screw to rotate is set at the bottom of the box body. Three pulleys are arranged in sequence between two adjacent upright plates. Two pulleys are respectively located above two corners of the frame, and the third pulley is located above the push plate. A through hole is opened on the upper surface of the box body. Pull ropes are connected to the four corners of the frame. One end of the pull rope is fixedly connected to the frame, and the other end of the pull rope passes around the pulley and is fixedly connected to the push plate.

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