Wear powder collecting device and CT (Computed Tomography) equipment
By improving the airflow direction and path of the wear powder collection device in the CT equipment, the short circuit risk problem caused by the accumulation of wear powder between the back of the brush substrate and the adjacent brush columns is solved, and a more efficient wear powder collection and the effect of reducing the short circuit risk is achieved.
Patent Information
- Application Number
- CN202421395910.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-19
- Publication Date
- 2025-06-27
- Estimated Expiration
- 2034-06-19
AI Technical Summary
In CT equipment, wear powder accumulates between the back of the brush substrate and adjacent brush columns, resulting in the risk of short circuit and the possibility of discharge breakdown.
By improving the airflow direction and airflow path of the wear powder collection device, the wear powder is directed from the surface of the brush substrate to the dust collector through the airflow channel, reducing accumulation and reducing the risk of short circuit.
It effectively reduces the accumulation of wear powder between the brush substrate and the brush column, reduces the risk of short circuit and the possibility of discharge breakdown, and improves the collection rate of wear powder.
Smart Images
Figure CN223026072U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a wear powder collection device.
[0002] The utility model relates to a CT device. Background Art
[0003] When the CT device works, on the side of the gantry, the electric power is transmitted by the contact between the brush fixed on the gantry fixing part and the continuously rotating slip ring on the rotating part. The brush rubs against the slip ring, resulting in the brush gradually shortening from the outer end to the root and generating wear powder.
[0004] Figure 1 The shown CT device includes a wear powder collection device with a dust collection fan 4 and a dust collection box 3. The wear powder collection device makes the scattered wear powder 13 be collected into the dust collection box 3 as much as possible by the wind generated when the dust collection fan 4 operates.
[0005] Figure 2 (A) In the shown wear powder collection device, the air flow direction is parallel to the arrangement direction of the W phase, V phase and U phase of the brush substrate 1, and the collection rate is higher than 80%. However, the wear powder 13 is easy to accumulate on the back of the brush substrate 1 along the area shown by the arrow, especially between the adjacent brush columns 11 and beside the pin 12, so that the W phase, V phase and U phase are easily conducted, or the inter-phase resistance decreases, and there is a risk of discharge breakdown.
[0006] Figure 2 (B) In the shown wear powder collection device, the air flow direction is perpendicular to the arrangement direction of the W phase, V phase and U phase of the brush substrate 1. It is not easy for the wear powder 13 to accumulate between the W phase, V phase and U phase, and it is not easy for different phases to be conducted, which is safer. However, it cannot collect the wear powder 13 at the source of the brush substrate 1, and the wear powder 13 mostly accumulates on the upper side of the brush column 11, and the collection rate is lower than 50%. Summary of the Utility Model
[0007] The purpose of the utility model is to provide a wear powder collection device and a CT device, which avoid the short circuit caused by the wear powder accumulated between the W phase, V phase and U phase by improving the air flow direction and air flow path of the wear powder collection device.
[0008] To solve the above technical problems, the wear powder collection device provided by the utility model has: a dust collection device, including a dust collection box and a dust collection fan, the dust collection box is arranged beside the brush substrate, the brush substrate is arranged on the gantry fixing part of the CT device and bears the brush column, and the dust collection fan is internally communicated with the dust collection box; an air flow channel, one end is connected to the dust collection device, and the other end is arranged on the brush substrate and beside the brush column and / or the pin. When the dust collection fan operates, an air flow is formed in the air flow channel from beside the brush column and / or the pin to the inside of the dust collection box.
[0009] The CT device provided by the present utility model further includes the above-mentioned wear powder collection device.
[0010] According to the above embodiment, when the dust collection fan operates, an air flow is formed beside the brush column and / or the pin to move the wear powder from the surface of the brush substrate to the inside of the dust collection box, reducing the wear powder accumulated beside the brush column and / or the pin, thereby reducing the short-circuit risk between the W phase, the V phase, and the U phase. Description of the Drawings
[0011] Figure 1 It is a structural diagram of an existing CT device;
[0012] Figure 2 It is a schematic diagram of two different wind directions and different accumulation positions of wear powder inside the brush substrate under the action of an existing wear powder collection device. Among them, Figure 2 (A) shows the wind direction parallel to the W phase, the V phase, and the U phase, Figure 2 (B) shows the wind direction perpendicular to the W phase, the V phase, and the U phase;
[0013] Figure 3 It is a schematic diagram of the wind direction and the accumulation position of wear powder inside the brush substrate under the action of the wear powder collection device in the first embodiment of the present utility model;
[0014] Figure 4 It is another schematic diagram of the wind direction and the accumulation position of wear powder inside the brush substrate under the action of the wear powder collection device in the first embodiment of the present utility model;
[0015] Figure 5 It is an assembly diagram of the wear powder collection device in the first embodiment of the present utility model;
[0016] Figure 6 It is an assembly diagram of the wear powder collection device in the first embodiment of the present utility model assembled onto the brush substrate;
[0017] Figure 7 It is a working condition diagram of the wear powder collection device in the first embodiment of the present utility model;
[0018] Figure 8 It is a structural diagram of the wear powder collection device in the second embodiment of the present utility model;
[0019] Figure 9 It is a schematic structural diagram of the wear powder collection device in the third embodiment of the present utility model;
[0020] Figure 10 It is a structural diagram of the wear powder collection device in the fourth embodiment of the present utility model. Detailed Embodiments
[0021] The present utility model will be described below according to the embodiments shown in the drawings. The disclosed embodiments can be considered illustrative in all aspects and are not restrictive. The scope of the present utility model is not limited by the following description of the embodiments, but is only indicated by the scope of the claims, and includes all modifications within the same meaning as the scope of the claims and within the scope of the claims.
[0022] Figure 1 FIG. 4 is a structural diagram of an existing CT device. The CT device includes a wear powder collection device with a dust collection fan 4 and a dust collection box 3. The wear powder collection device uses the wind force generated when the dust collection fan 4 operates to collect as much wear powder 13 scattered on the brush substrate 1 into the dust collection box as possible.
[0023] Among them, the wear powder collection device includes the following four embodiments.
[0024] (Embodiment 1)
[0025] Figure 6 FIG. 5 is an assembly drawing of the wear powder collection device of Embodiment 1 of the present utility model assembled to the brush substrate 1. Figure 7 FIG. 6 is a working condition diagram of the wear powder collection device of Embodiment 1 of the present utility model.
[0026] Combined with Figure 6 and Figure 7 , the wear powder collection device includes: an air suction pipe 2, a dust collection box 3, a dust collection fan 4, and a filter element 5; a through hole is formed on the brush substrate 1 to avoid the layout of the brush substrate 1 and penetrate the brush substrate 1 in the thickness direction of the brush substrate 1. One end of the air suction pipe 2 forms a suction nozzle 21. The suction nozzle 21 passes through the through hole and is arranged beside the brush column 11 and / or the pin 12 of the brush substrate 1, and the suction nozzle 21 is arranged at a position where the wear powder 13 is likely to accumulate beside the brush column 11 and the pin 12 on the brush substrate 1. The other end of each air suction pipe 2 is connected to the inside of the dust collection box 3. The dust collection box 3 is installed on the front surface of the brush substrate 1. The dust collection fan 4 is connected to the dust collection box 3. An air flow channel is formed inside the air suction pipe 2. When the dust collection fan 4 operates, a unidirectional air flow flowing from the suction nozzle 21 through the air suction pipe 2 towards the dust collection box 3 is formed in the air flow channel, so that the dust collection box 3 sucks the wear powder 13 through the air suction pipe 2, and at the same time generates an air flow discharged to the atmosphere. A filter element 5 is filled at the connection between the dust collection fan 4 and the dust collection box 3 and inside the dust collection box 3. The filter element 5 is used to prevent the wear powder 13 from entering the dust collection fan 4.
[0027] Figure 3 and Figure 4 FIG. 7 is a schematic diagram of the wind direction inside the brush substrate 1 and the accumulation position of the wear powder 13 under the action of the wear powder collection device of Embodiment 1 of the present utility model.
[0028] Combined with Figure 3 and Figure 4, the suction pipe 2 is arranged at an upper oblique side of 45° of each brush post 11 and beside each pin 12 or between two adjacent pins 12. The suction pipe 2 arranged at the upper oblique side of 45° of the brush post 11 has an inclined mouth nozzle 22. The inclined mouth nozzle 22 protrudes from the surface of the brush substrate 1, and the inclined surface (opening direction) of the inclined mouth nozzle 22 faces the corresponding brush post 11. The inclined mouth nozzle 22 is mainly used for sucking the abrasion powder 13 accumulated on the upper side of the brush post 11. The suction pipe 2 arranged beside the pin 12 or between two adjacent pins 12 has a flat mouth nozzle 23. The end face of the flat mouth nozzle 23 does not protrude from the surface of the brush substrate 1. The flat mouth nozzle 23 is mainly used for sucking the abrasion powder 13 near the pin 12.
[0029] Figure 5 is the assembly drawing of the abrasion powder collection device of the first embodiment of the present invention. Combining Figure 5 , the dust collection box 3 includes a box body 31 and a box cover 32. The box body 31 and the suction pipe 2 are hermetically connected through an insulating material or integrally formed through an insulating material. The insulating material can adopt an insulating resin material. An air outlet is formed on the box cover 32. The box cover 32 is a metal sheet metal part. The dust collection fan 4 is installed on the box cover 32, and the air inlet of the dust collection fan 4 is connected to the inside of the dust collection box 3, specifically connected to the air outlet of the box cover 32. The air outlet of the dust collection fan 4 faces the atmosphere.
[0030] During the operation of the dust collection fan 4, the abrasion powder 13 is continuously sucked into the filter element 5 and accumulated, reducing the diffusion of the abrasion powder 13 at the source as much as possible. For the parts far from the pin 12 or near the brush post 11, even if there is some abrasion powder 13 accumulated, the short - circuit risk is reduced.
[0031] (Embodiment Two)
[0032] Figure 8 is the structural diagram of the abrasion powder collection device of the second embodiment of the present invention.
[0033] Combining Figure 8 , the abrasion powder collection device includes: a suction pipe 2, a dust collection box 3, a dust collection fan 4 and a filter element 5. One end of the suction pipe 2 forms a suction nozzle 21. The suction nozzle 21 is beside the brush post 11 and / or the pin 12 of the brush substrate 1. The other end of each suction pipe 2 is connected to the inside of the dust collection box 3. The dust collection box 3 is installed on the side of the brush substrate 1. The dust collection fan 4 is connected to the dust collection box 3. An air flow channel is formed inside the suction pipe 2. When the dust collection fan 4 operates, a unidirectional air flow flowing from the suction nozzle 21 through the suction pipe 2 towards the dust collection box 3 is formed in the air flow channel, so that the dust collection box 3 sucks the abrasion powder 13 through the suction pipe 2, and at the same time generates an air flow discharged to the atmosphere. A filter element 5 is filled at the connection between the dust collection fan 4 and the dust collection box 3 and inside the dust collection box 3. The filter element 5 is used to prevent the abrasion powder 13 from entering the dust collection fan 4.
[0034] The difference between the second embodiment and the first embodiment is that the dust collection box 3 is installed on the side rather than the front of the brush substrate 1, and the dust collection box 3 is connected to each suction nozzle 21 through the suction pipe 2 extending along the arrangement directions of the W-phase, V-phase, and U-phase on the front of the brush substrate 1. The advantage is that the size of the brush substrate 1 in the front-rear direction is not increased.
[0035] In order to balance the air speeds of each suction nozzle 21 as much as possible, along the arrangement path of the suction pipe 2, the opening sizes of the suction nozzles 21 far from the air inlet of the dust collection box 3 gradually increase, so as to achieve the effect of evenly absorbing the wear powder 13 between the W-phase, V-phase, and U-phase.
[0036] (The third embodiment)
[0037] Figure 9 The structural schematic diagram of the wear powder collection device of the third embodiment of the present invention is shown in combination with Figure 9 The wear powder collection device includes: a blowing pipe 6, a dust collection box 3, a dust collection fan 4, and a filter element 5;
[0038] One end of the blowing pipe 6 forms a blowing nozzle 61. The blowing nozzle 61 is beside the brush column 11 and / or the pin 12 of the brush substrate 1. Each blowing nozzle 61 is connected to the air outlet of the dust collection fan 4 through the blowing pipe 6 extending along the surface of the brush substrate 1;
[0039] The dust collection box 3 has a dust collection port 31 connected to the side of the brush substrate 1. The air inlet of the dust collection fan 4 is connected to the dust collection box 3. When the dust collection fan 4 operates, it generates an air flow that sucks the wear powder 13 into the dust collection port 31, and at the same time generates an air flow that blows away the wear powder accumulated on the brush substrate 1 by the blowing nozzle 61. At the connection between the dust collection fan 4 and the dust collection box 3, and inside the dust collection box 3, a filter element 5 is filled. The filter element 5 is used to prevent the wear powder 13 from entering the dust collection fan 4.
[0040] During the operation of the dust collection fan 4, a circulating air flow is formed in the air flow channel, which sequentially passes through the blowing pipe 6, the blowing nozzle 61, the surface of the brush base plate 1, and the dust collection box 3. Specifically, an air flow flowing towards the dust collection port 31 is formed on the surface of the brush base plate 1. The air flow carries the abrasion powder 13 on the surface of the brush base plate 1 into the dust collection box 3 and is filtered by the filter element 5. The abrasion powder 13 accumulates in the filter element 5. The air flow after filtration returns to the surface of the brush base plate 1 through the blowing pipe 6 and is blown towards the upper sides of the brush columns 11 of the W-phase, V-phase, and U-phase through the respective blowing nozzles 61, dispersing the abrasion powder 13 adsorbed on the brush columns 11. At the same time, the blowing nozzles 61 also blow towards the side of the pin 12 or between two adjacent pins 12. The blowing nozzles 61 are arranged at positions on the brush base plate 1 where the abrasion powder 13 is likely to accumulate beside the brush columns 11 and / or the pins 12, making it difficult for the abrasion powder 13 to gather. The abrasion powder 13 dispersed by the respective blowing nozzles 61 is continuously sucked into the dust collection box 3 and accumulates along with the air flow on the surface of the brush base plate 1 flowing towards the dust collection port 31. The circulating air flow formed through the above steps reduces the diffusion of the abrasion powder 13 at the source as much as possible. For the remaining parts far from the pins 12 or near the brush columns 11, even if there is some accumulation of the abrasion powder 13, the risk of short circuit is reduced.
[0041] (Embodiment Four)
[0042] Figure 10 This is a structural diagram of the abrasion powder collection device according to Embodiment Four of the present invention. Combining Figure 10 , the abrasion powder collection device includes: an insulating plate 7, a dust collection box 3, a dust collection fan 4, and a filter element 5.
[0043] The insulating plate 7 is arranged on the back of the brush base plate 1. The back of the brush base plate 1 refers to the side where the brush columns 11 protrude, and the brush columns 11 and / or the pins 12 are isolated in accordance with the rule of insulating the W-phase, V-phase, and U-phase.
[0044] Between the insulating plate 7 and the brush base plate 1, and between the insulating plates 7, three air flow channels are formed respectively in the W-phase, V-phase, and U-phase. The two ends of the air flow channel are respectively arranged on the front and back sides of the brush base plate 11 with respect to the moving direction of the rotating part of the CT device. Usually, the front and back sides corresponding to the moving direction of the rotating part of the CT device are the upper and lower sides of the brush base plate 11. The dust collection box 3 is connected to any one end of the air flow channel through the dust collection port 31. The dust collection fan 4 is arranged on the dust collection box 3. When the dust collection fan 4 operates, a unidirectional air flow flowing from the surface of the brush base plate 1 towards the dust collection box 3 is formed in the air flow channel, so that the dust collection box 3 sucks the abrasion powder 13 through the dust collection port 31, and at the same time generates an air flow discharged to the atmosphere. At the connection between the dust collection fan 4 and the dust collection box 3, and inside the dust collection box 3, a filter element 5 (invisible in the figure) is filled to prevent the abrasion powder 13 from entering the dust collection fan 4.
[0045] During the operation of the dust collecting fan 4, the air flow flows through each air flow channel towards the dust collecting box 3, and the abrasion powder 13 is continuously sucked into the filter element 5 and accumulated, reducing the diffusion of the abrasion powder 13 at the source as much as possible. Even if there is a phenomenon that the abrasion powder 13 accumulates and conducts between adjacent brush columns 11, it will only occur between the brush columns 11 of the same phase, reducing the risk of resistance decrease between the U phase, V phase, and W phase.
[0046] The insulating plate 7 can be made of insulating resin material.
[0047] Based on the above four embodiments, those skilled in the art can easily obtain a CT device with the above four abrasion powder collection devices.
[0048] After considering the specification and practicing the utility model disclosed herein, those skilled in the art will readily conceive of other embodiments of the present utility model. This application is intended to cover any variations, uses, or adaptations of the present utility model, which follow the general principles of the present utility model and include known common knowledge or conventional technical means in the technical field not disclosed herein. The specification and embodiments are only regarded as exemplary, and the true scope and spirit of the present utility model are pointed out by the following claims.
[0049] It should be understood that the present utility model is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present utility model is only limited by the appended claims.
Claims
1. A wear powder collection device, characterized in that: have: The dust collecting device comprises a dust collecting box and a dust collecting fan, wherein the dust collecting box is arranged beside the brush substrate, the brush substrate is arranged on the gantry fixing part of the CT device and carries the brush column, and the dust collecting fan is connected to the inside of the dust collecting box; An air flow channel has one end connected to the dust collecting device and the other end arranged on the brush substrate and located beside the brush column and / or the pin. When the dust collecting fan is in operation, an air flow is formed from the brush column and / or the pin to the inside of the dust collecting box.
2. The wear powder collecting device according to claim 1, characterized in that: A suction nozzle is arranged next to the brush column and / or the pin, and a through hole is arranged on the brush substrate. Each of the suction nozzles is connected to the dust box via an air pipe passing through the through hole along the thickness direction of the brush substrate. The air flow channel is formed inside the air pipe. When the dust collecting fan is in operation, a unidirectional airflow is formed in the air flow channel, flowing from the suction nozzle through the air pipe toward the dust box.
3. The wear powder collecting device according to claim 1, characterized in that: A suction nozzle is arranged next to the brush column and / or the pin, each of the suction nozzles is connected to the dust box via an air pipe extending along the surface of the brush substrate, the air flow channel is formed inside the air pipe, and when the dust collecting fan is in operation, a unidirectional airflow is formed in the air flow channel, flowing from the suction nozzle through the air pipe toward the dust box.
4. The wear powder collecting device according to claim 3, characterized in that: The suction nozzle is arranged along the air pipe, and the opening size gradually increases in the direction away from the air inlet of the dust collecting fan.
5. The wear powder collecting device according to any one of claims 2 to 4, characterized in that: The suction nozzle is arranged at a position where the wear powder is accumulated next to the brush post and the pin on the brush substrate.
6. The wear powder collecting device according to claim 5, characterized in that: The suction nozzle is arranged on the oblique upper side of the brush column and is arranged as an oblique nozzle, the oblique nozzle protrudes from the surface of the brush substrate, and the opening direction faces the corresponding brush column; The suction nozzle is arranged beside each of the pins or between two adjacent pins and is configured as a flat nozzle that does not protrude from the surface of the brush substrate.
7. The wear powder collecting device according to any one of claims 2-4 and 6, characterized in that: The dust collecting box comprises a box body and a box cover, the dust collecting fan is installed on the box cover, the air inlet of the dust collecting fan is connected to the interior of the dust collecting box, and the box body is connected to the air pipe.
8. The wear powder collecting device according to claim 7, characterized in that: The box body and the air pipe are made of insulating materials.
9. The wear powder collecting device according to claim 1, characterized in that: A blowing nozzle is arranged next to the brush column and / or the tube pin, and each of the blowing nozzles is connected to the air outlet of the dust collecting fan through an air pipe extending along the surface of the brush substrate. When the dust collecting fan is in operation, a circulating airflow is formed in the air flow channel that passes through the air pipe, the blowing nozzle, the surface of the brush substrate and the dust collecting box in sequence.
10. The wear powder collecting device according to claim 9, characterized in that: The blowing nozzle is arranged at a position where the wear powder is accumulated next to the brush post and / or the pin on the brush substrate.
11. The wear powder collecting device according to claim 1, characterized in that: An insulating plate is provided on the brush substrate and on one side of the protrusion of the brush post. The insulating plate isolates the brush post and / or pin in accordance with the rule of insulating W phase, V phase and U phase. Three air flow channels respectively located in W phase, V phase and U phase are formed between the insulating plate and the brush substrate, and between the insulating plate and the insulating plate. The two ends of the air flow channel are respectively arranged at the front and rear sides of the brush substrate relative to the movement direction of the rotating part of the CT device. When the dust collecting fan is in operation, a unidirectional airflow flowing from the surface of the brush substrate toward the dust collecting box is formed in the air flow channel.
12. The wear powder collecting device according to claim 1, characterized in that: The dust collecting device also includes a filter element, which is arranged at the connection point between the dust collecting fan and the dust collecting box.
13. CT equipment, characterized in that include: The wear powder collecting device according to any one of claims 1 to 12.