Air separation stable flow control device based on shaft current elimination technology

Abstract

The utility model relates to the technical field of air separation equipment, in particular to an air separation stable flow control device based on the shaft current elimination technology, and adopts the technical scheme that the air separation stable flow control device comprises a motor body and an adjusting box, a rear cover is arranged at the rear end of a shell of the motor body, a motor shaft is arranged in the motor body, and a metal bearing is arranged on the motor shaft; fan blades are installed at the starting end of a motor shaft, the adjusting box is installed at the rear end of the rear cover, a threaded rod is rotationally installed in the adjusting box, adjusting blocks which are symmetrically distributed are installed on the threaded rod in a threaded mode, a fixing rod is installed at the front end of each adjusting block, an insulating plate is installed at the tail end of each fixing rod, and a spring is installed on each insulating plate. A conductive clamping plate is installed at the tail end of the spring, a grounding wire is arranged on the conductive clamping plate, a second extending hole is formed in the side end of the rear cover, and the grounding wire extends out of the second extending hole. The air separation device has the advantages of being capable of eliminating shaft current, simple in structure, convenient to maintain and repair and capable of guaranteeing stable flow control of the air separation device.

Description

Technical Field

[0001] This utility model relates to the field of air separation equipment technology, specifically an air separation stabilization and current control device based on shaft current elimination technology. Background Technology

[0002] Air separation, also known as air separation, refers to the process of separating components (oxygen, nitrogen, and rare gases such as argon and helium) from air using the principle of cryogenic freezing. Air separation equipment is the key to achieving air separation. It typically includes major components such as compressors, precooling systems, purification systems, and distillation columns. In recent years, with technological advancements, air separation equipment has gradually become larger, more efficient, and more intelligent.

[0003] Air separation equipment includes a motor. When shaft current exists in the motor, it can cause great damage to the bearing system of the equipment. When shaft current passes through the bearing, it will generate high temperature at the metal contact point between the bearing and the shaft. Due to the small contact area and high current density, local melting occurs. The melted bearing alloy splashes under the action of rolling pressure, forming pits or strip-shaped arc marks on the inner surface of the bearing. Therefore, it is necessary to stabilize the current control and eliminate shaft current to ensure the stable operation of the air separation equipment. Utility Model Content

[0004] The purpose of this invention is to provide an air separation stable current control device based on shaft current elimination technology. It has the advantages of eliminating shaft current, simple structure, convenient maintenance and repair, and ensuring stable current control of air separation equipment, thus solving the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a space-division current-stabilizing control device based on shaft current elimination technology, comprising a motor body and an adjustment box. A rear cover is installed at the rear end of the motor body housing. The motor body includes a motor shaft with a metal bearing installed on it. A fan blade is installed at the beginning of the motor shaft. The adjustment box is installed at the rear end of the rear cover. A threaded rod is rotatably installed inside the adjustment box. A symmetrically distributed adjustment block is threaded onto the threaded rod. A fixing rod is installed at the front end of the adjustment block. An insulating plate is installed at the end of the fixing rod. A spring is installed on the insulating plate. A damping telescopic rod is installed inside the spring. A conductive clamp is installed at the end of the spring. A grounding wire is installed on the conductive clamp. A second extension hole is opened on the side of the rear cover, and the grounding wire extends out from the second extension hole.

[0006] When using the air separation stable flow control device based on shaft current elimination technology of this utility model, during the operation of the motor body, the fan blades can rotate at high speed under the action of the motor shaft, thereby expelling the air inside the motor body for heat dissipation. The drive device rotates the threaded rod, and with the cooperation of two adjusting blocks, the two conductive clamps can be brought closer to each other. The two conductive clamps can clamp the metal bearing, and the spring can buffer the clamping force. The metal bearing can connect the current on the motor shaft, and the current is connected to the conductive clamps. The current is then grounded through the grounding wire to eliminate the shaft current, thereby ensuring the stable operation of the air separation equipment.

[0007] Preferably, the motor body housing is equipped with a first fixing plate arranged in an array, and the rear cover is equipped with a second fixing plate corresponding to the first fixing plate. The first and second fixing plates are provided for the installation of the rear cover.

[0008] Preferably, the first fixing plate has a threaded hole, and the second fixing plate has a mounting hole corresponding to the threaded hole, and bolts are installed in the mounting hole and the threaded hole.

[0009] Preferably, both the metal bearing and the fan blade are located inside the rear cover.

[0010] Preferably, the front end of the adjustment box has a movable opening, and the fixing rod extends out of the adjustment box from the movable opening. The movable opening allows the fixing rod to move up and down easily.

[0011] Preferably, the threaded rod is provided with a positive thread and a negative thread, and the positive thread and the negative thread are symmetrically distributed about the threaded rod.

[0012] Preferably, a drive device is mounted on the upper end of the adjusting box, and the main shaft of the drive device is connected to the axis of the threaded rod. The operation of the drive device can rotate the threaded rod clockwise or counterclockwise, thereby causing the two adjusting blocks to move further apart or closer together.

[0013] Preferably, the rear end of the rear cover has heat dissipation holes on both sides of the adjustment box, and the rear cover has first extension holes that are symmetrically distributed. The end of the fixing rod extends from the first extension hole into the adjustment box.

[0014] Preferably, the adjusting box is equipped with symmetrically distributed positioning rods, and the adjusting block is provided with symmetrically distributed positioning holes, with the positioning rods located in the positioning holes.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model has a simple structure, and the back cover is installed by bolts, which can be easily disassembled, thus facilitating the inspection and maintenance of this utility model. During operation, the metal bearing is clamped by two conductive clamps, and the metal bearing can connect the current on the motor shaft to the conductive clamps. The current is then grounded and discharged through the grounding wire, thereby eliminating the shaft current and ensuring stable current control of the air separation equipment. Attached Figure Description

[0016] Figure 1 This is a front view structural diagram of the present utility model;

[0017] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0018] Figure 3 This is a top view of the structure of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the rear cover structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the back cover structure of this utility model.

[0021] The reference numerals and names in the figure are as follows:

[0022] 101. Motor body; 102. Motor shaft; 103. First fixing plate; 104. Fan blade; 105. Metal bearing; 201. Rear cover; 202. First extension hole; 203. Second extension hole; 204. Heat dissipation hole; 205. Second fixing plate; 301. Adjustment box; 302. Threaded rod; 303. Drive device; 304. Adjustment block; 305. Movable port; 306. Positioning rod; 307. Fixing rod; 308. Insulating plate; 309. Spring; 310. Conductive clamp; 311. Damping telescopic rod; 312. Grounding wire. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Example

[0025] Please see Figures 1 to 5 One embodiment of this utility model is a space-division current-stabilizing control device based on shaft current elimination technology, comprising:

[0026] The motor body 101 and the adjusting box 301 are provided. The rear end of the motor body 101 is equipped with a rear cover 201. The motor body 101 includes a motor shaft 102, on which a metal bearing 105 is installed. A fan blade 104 is installed at the beginning of the motor shaft 102. The adjusting box 301 is installed at the rear end of the rear cover 201. A threaded rod 302 is rotatably installed in the adjusting box 301. A symmetrically distributed adjusting block 304 is threaded on the threaded rod 302. A fixing rod 307 is installed at the front end of the adjusting block 304. An insulating plate 308 is installed at the end of the fixing rod 307. A spring 309 is installed on the insulating plate 308. A damping telescopic rod 311 is provided inside the spring 309. A conductive clamp 310 is installed at the end of the spring 309. A grounding wire 312 is provided on the conductive clamp 310. A second extension hole 203 is opened on the side of the rear cover 201, and the grounding wire 312 extends out from the second extension hole 203.

[0027] In this embodiment, during the operation of the motor body 101, the fan blades 104 can rotate at high speed under the action of the motor shaft 102, thereby expelling the air inside the motor body 101 for heat dissipation. The drive device 303 causes the threaded rod 302 to rotate, and with the cooperation of the two adjusting blocks 304, the two conductive clamps 310 can be brought closer to each other. The two conductive clamps 310 can clamp the metal bearing 105, and the spring 309 can buffer the clamping force. The metal bearing 105 can connect the current on the motor shaft to the conductive clamps 310, and the current is grounded and discharged through the grounding wire 312, so that the shaft current is eliminated, thereby ensuring the stable operation of the air separation equipment.

[0028] Furthermore, the motor body 101 has a first fixing plate 103 arranged in an array on its housing, and the rear cover 201 has a second fixing plate 205 corresponding to the first fixing plate 103 on its housing.

[0029] Furthermore, the first fixing plate 103 has a threaded hole, and the second fixing plate 205 has a mounting hole corresponding to the threaded hole. Bolts are installed in the mounting hole and the threaded hole.

[0030] Furthermore, both the metal bearing 105 and the fan blade 104 are located inside the rear cover 201.

[0031] Furthermore, the front end of the adjustment box 301 is provided with a movable opening 305, and the fixing rod 307 extends out of the adjustment box 301 from the movable opening 305.

[0032] Furthermore, the threaded rod 302 is provided with a positive thread and a negative thread, which are symmetrically distributed about the threaded rod 302.

[0033] Furthermore, a drive device 303 is installed on the upper end of the adjustment box 301, and the main shaft of the drive device 303 is connected to the axis of the threaded rod 302.

[0034] Furthermore, the rear end of the back cover 201 is provided with heat dissipation holes 204 on both sides of the adjustment box 301, and the back cover 201 is provided with first extension holes 202 that are symmetrically distributed. The end of the fixing rod 307 extends from the first extension hole 202 into the adjustment box 301.

[0035] Furthermore, the adjusting box 301 is equipped with symmetrically distributed positioning rods 306, and the adjusting block 304 is provided with symmetrically distributed positioning holes, with the positioning rods 306 located in the positioning holes.

[0036] The driving device 303 in this utility model is a known device. Its working principle and circuit connection are well known to those skilled in the art and are all conventional methods or common knowledge. This utility model only utilizes its function and does not improve its structure. Therefore, it will not be described in detail here. Those skilled in the art can make any selections according to their needs or convenience.

[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A space-division current-stabilizing control device based on shaft current elimination technology, comprising a motor body (101) and an regulating box (301), characterized in that: The rear end of the motor body (101) is fitted with a rear cover (201). The motor body (101) includes a motor shaft (102), on which a metal bearing (105) is mounted. A fan blade (104) is mounted at the beginning of the motor shaft (102). The adjusting box (301) is installed at the rear end of the rear cover (201). A threaded rod (302) is rotatably mounted inside the adjusting box (301). Symmetrically distributed adjusting blocks (304) are threaded onto the threaded rod (302). A fixing rod (307) is installed at the front end of the cover (201), an insulating plate (308) is installed at the end of the fixing rod (307), a spring (309) is installed on the insulating plate (308), a damping telescopic rod (311) is provided inside the spring (309), a conductive clamp (310) is installed at the end of the spring (309), a grounding wire (312) is provided on the conductive clamp (310), and a second extension hole (203) is opened on the side end of the rear cover (201), and the grounding wire (312) extends out from the second extension hole (203).

2. The space-division current-stabilizing control device based on shaft current elimination technology according to claim 1, characterized in that: The motor body (101) has a first fixing plate (103) arranged in an array on its housing, and the rear cover (201) has a second fixing plate (205) corresponding to the first fixing plate (103) on its housing.

3. The space-division current-stabilizing control device based on shaft current elimination technology according to claim 2, characterized in that: The first fixing plate (103) has a threaded hole, and the second fixing plate (205) has a mounting hole corresponding to the threaded hole. Bolts are installed in the mounting hole and the threaded hole.

4. The space-division current-stabilizing control device based on shaft current elimination technology according to claim 1, characterized in that: The metal bearing (105) and the fan blade (104) are both located inside the rear cover (201).

5. The space-division current-stabilizing control device based on shaft current elimination technology according to claim 1, characterized in that: The front end of the adjustment box (301) is provided with a movable opening (305), and the fixing rod (307) extends out of the adjustment box (301) from the movable opening (305).

6. The space-division current-stabilizing control device based on shaft current elimination technology according to claim 1, characterized in that: The threaded rod (302) is provided with a positive thread and a negative thread, which are symmetrically distributed about the threaded rod (302).

7. The space-division current-stabilizing control device based on shaft current elimination technology according to claim 1, characterized in that: The upper end of the adjustment box (301) is equipped with a drive device (303), and the main shaft of the drive device (303) is connected to the axis of the threaded rod (302).

8. The space-division current-stabilizing control device based on shaft current elimination technology according to claim 1, characterized in that: The rear end of the back cover (201) is provided with heat dissipation holes (204) on both sides of the adjustment box (301). The back cover (201) is provided with first extension holes (202) that are symmetrically distributed. The end of the fixing rod (307) extends from the first extension hole (202) into the adjustment box (301).

9. A space-division current-stabilizing control device based on shaft current elimination technology according to claim 1, characterized in that: The adjusting box (301) is equipped with symmetrically distributed positioning rods (306), and the adjusting block (304) is provided with symmetrically distributed positioning holes, with the positioning rods (306) located in the positioning holes.

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