CN210920007U - Safe type fluid coupling ware - Google Patents
Safe type fluid coupling ware Download PDFInfo
- Publication number
- CN210920007U CN210920007U CN201921969674.7U CN201921969674U CN210920007U CN 210920007 U CN210920007 U CN 210920007U CN 201921969674 U CN201921969674 U CN 201921969674U CN 210920007 U CN210920007 U CN 210920007U
- Authority
- CN
- China
- Prior art keywords
- auxiliary chamber
- main shaft
- rear auxiliary
- end cover
- shell
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000008878 coupling Effects 0.000 title claims description 17
- 238000010168 coupling process Methods 0.000 title claims description 17
- 238000005859 coupling reaction Methods 0.000 title claims description 17
- 239000012530 fluid Substances 0.000 title claims description 13
- 238000007664 blowing Methods 0.000 claims abstract description 5
- 238000005057 refrigeration Methods 0.000 claims description 5
- 239000004065 semiconductor Substances 0.000 claims description 5
- 241000883990 Flabellum Species 0.000 claims 3
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 229910045601 alloy Inorganic materials 0.000 description 6
- 239000000956 alloy Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 229910000743 fusible alloy Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a safe hydraulic coupler, which belongs to the technical field of couplers and comprises a connecting disc, a rear auxiliary chamber, a pump impeller, a turbine, a shell, a main shaft and an end cover, wherein the connecting disc, the rear auxiliary chamber, the pump impeller, the shell and the end cover are sequentially connected, the turbine is positioned in the shell, the main shaft passes through the end cover and the shell and is fixed with the turbine, the safe hydraulic coupler also comprises a fan device used for blowing air to the direction of the pump impeller, and the fan device is fixed on the rear auxiliary chamber; the fan device comprises fan blades and a mesh enclosure, wherein the fan blades and the mesh enclosure are fixed on the peripheral surface of the rear auxiliary chamber, and the fan blades are accommodated in the mesh enclosure, so that the problem that the working oil is easily overheated is solved.
Description
Technical Field
The utility model relates to a coupler technical field, in particular to safe type fluid coupling ware.
Background
A fluid coupling, also called a fluid coupling, is a fluid transmission device for connecting a power source (usually an engine or an electric motor) and a working machine and transmitting torque by a change in fluid momentum torque. The pump wheel and turbine of the fluid coupling constitute a closed working chamber which can make the liquid circularly flow, the pump wheel is mounted on the input shaft, and the turbine is mounted on the output shaft. The two wheels are semi-circular rings with a plurality of blades arranged along the radial direction, the semi-circular rings are coupled and arranged oppositely and are not contacted with each other, a gap of 3mm to 4mm is formed in the middle, and an annular working wheel is formed. After the pump wheel and the turbine wheel are assembled, an annular cavity is formed, and working oil is filled in the annular cavity.
The hydraulic coupler rotates at a high speed for a long time, the temperature is gradually increased, and after the working oil is overheated, the working oil is easily ignited and the hydraulic coupler is easily damaged by explosion. In order to prevent the ignition of the working oil and the damage of the fluid coupling, the existing fluid coupling is usually provided with a fusible plug, the low-melting-point alloy in the fusible plug is melted at a higher temperature, a channel is opened, and the overheated working oil is sprayed out from a hole originally filled with the fusible alloy, so that the pressure is released. By the design, the hydraulic coupler can be protected from over-temperature, but the sprayed overheated working oil can pollute the surrounding environment, is high in temperature and is easy to cause potential safety hazards when sprayed outwards. Therefore, proper temperature reduction measures should be taken to reduce the overheating phenomenon of the working oil as much as possible.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a safe type fluid coupling ware, it has solved the easy problem that appears overheated phenomenon of working oil.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a safety type hydraulic coupler comprises a connecting disc, a rear auxiliary chamber, a pump impeller, a turbine, a shell, a main shaft and an end cover, wherein the connecting disc, the rear auxiliary chamber, the pump impeller, the shell and the end cover are sequentially connected, the turbine is positioned in the shell, the main shaft penetrates through the end cover and the shell and is fixed with the turbine, the safety type hydraulic coupler also comprises a fan device used for blowing air to the direction of the pump impeller, and the fan device is fixed on the rear auxiliary chamber;
the fan device comprises fan blades and a mesh enclosure, wherein the fan blades and the mesh enclosure are fixed on the peripheral surface of the rear auxiliary chamber, and the fan blades are contained in the mesh enclosure.
By adopting the structure, the connecting disc, the rear auxiliary chamber, the pump wheel, the shell and the end cover are sequentially fixed, and the main shaft is fixed with the turbine, so that when the power source drives the main shaft to rotate, the turbine rotates at a high speed, and the connecting disc, the rear auxiliary chamber, the pump wheel, the shell and the end cover also start to rotate under the action of liquid force. When the rear auxiliary chamber rotates, the fan blades also rotate at a high speed, so that wind on the side faces of the fan blades is pushed to the front, and the wind continuously blows to the pump impeller and the shell to cool the hydraulic coupler and prevent the hydraulic coupler from being heated too high. The hydraulic coupler has good heat dissipation, reduces the possibility of melting the low-melting-point alloy, improves the use safety of the hydraulic coupler and reduces potential safety hazards.
The method is further optimized as follows: the outer surface of the pump wheel is fixedly provided with a jacket, and a semiconductor refrigeration sheet is fixedly arranged in the jacket.
By adopting the structure, the semiconductor refrigeration sheet can cool the pump wheel, and the peripheral temperature of the hydraulic coupler is effectively reduced under the action of the fan device, so that the overheating of working oil is reduced.
The method is further optimized as follows: the fan blades are provided with a plurality of blades which are uniformly distributed on the circumferential surface of the rear auxiliary chamber.
By adopting the structure, the air quantity is increased, the air blowing uniformity is improved, and the quick cooling of the hydraulic coupler is facilitated.
The method is further optimized as follows: the pump wheel is provided with an fusible plug, and the fusible plug is inserted into the pump wheel and is in threaded connection with the pump wheel.
By adopting the structure, the sealing performance is better, the dismounting is convenient, the later maintenance is convenient, and the fusible plug is easy to replace.
The method is further optimized as follows: the end cover is provided with a first oil seal which is tightly propped between the end cover and the main shaft;
a second oil seal is arranged on the rear auxiliary chamber and is tightly propped between the rear auxiliary chamber and the main shaft;
the inner diameter of the first oil seal is larger than that of the second oil seal.
By adopting the structure, the diameter of one end of the main shaft is larger, and the diameter of the other end of the main shaft is smaller. One end close to the end cover is used for being connected with a power source (such as a motor), one end close to the rear auxiliary chamber is used for being connected with a working machine, one end with the large diameter of the main shaft is connected with the power source, one end with the small diameter is connected with the working machine, connection is more stable, and transmission is better.
The method is further optimized as follows: and one end of the main shaft, which is close to the end cover, is fixedly provided with a connecting shaft, one end of the connecting shaft is fixedly arranged on the main shaft, and the other end of the connecting shaft is connected with a brake wheel.
By adopting the structure, the power source is convenient to be connected to the brake wheel, and the brake wheel has good vibration reduction and buffering effects.
The method is further optimized as follows: the rear auxiliary chamber is a lengthened rear auxiliary chamber.
By adopting the structure, the fan blades and the mesh enclosure are conveniently arranged on the surface of the periphery of the rear auxiliary chamber.
To sum up, the utility model discloses following beneficial effect has: because the connecting disc, the rear auxiliary chamber, the pump impeller, the shell and the end cover are fixed in sequence, and the main shaft is fixed with the turbine, when the power source drives the main shaft to rotate, the turbine rotates at a high speed, and the connecting disc, the rear auxiliary chamber, the pump impeller, the shell and the end cover also start to rotate under the action of liquid force.
When the rear auxiliary chamber rotates, the fan blades also rotate at a high speed, so that wind on the side faces of the fan blades is pushed to the front, and the wind continuously blows to the pump impeller and the shell to cool the hydraulic coupler and prevent the hydraulic coupler from being heated too high. The hydraulic coupler has good heat dissipation, reduces the possibility of melting the low-melting-point alloy, improves the use safety of the hydraulic coupler and reduces potential safety hazards. The problem of the easy overheated phenomenon of working oil is solved.
Drawings
Fig. 1 is a schematic sectional view of an embodiment, which is mainly used for embodying a specific structure of a fluid coupling;
fig. 2 is a schematic structural diagram of the embodiment, which is mainly used for embodying the structure of the fan device.
In the figure, 1, connecting disc; 2. a rear auxiliary chamber; 3. a pump impeller; 4. a turbine; 5. a housing; 6. a connecting shaft; 7. a brake wheel; 8. a fan device; 81. a fan blade; 82. a mesh enclosure; 9. a jacket; 10. a fusible plug; 11. a main shaft; 12. an end cap; 13. an elastic rubber block; 141. a first oil seal; 142. a second oil seal; 15. a bearing; 16. semiconductor refrigeration piece.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example (b): a safety type hydraulic coupler is shown in figures 1 and 2 and comprises a connecting disc 1, a rear auxiliary chamber 2, a pump wheel 3, a turbine 4, a shell 5, a main shaft 11, an end cover 12 and a fan device 8 for blowing air to the direction of the pump wheel 3. The connecting disc 1 is located at the input end of the hydraulic coupler, the end cover 12 is located at the output end of the hydraulic coupler, and the connecting disc 1 is used for being connected with a working machine. The connecting disc 1, the rear auxiliary chamber 2, the pump wheel 3, the shell 5 and the end cover 12 are sequentially connected through bolts, and the rear auxiliary chamber 2 is a lengthened rear auxiliary chamber. The turbine 4 is positioned in the shell 5 and close to the pump wheel 3, and the distance between the turbine 4 and the pump wheel 3 is 3-4 mm. The main shaft 11 is positioned in the center of the inner parts of the rear auxiliary chamber 2, the pump impeller 3, the shell 5 and the end cover 12, and the central shaft of the main shaft 11 is respectively positioned on the same straight line with the central shafts of the connecting disc 1, the rear auxiliary chamber 2, the pump impeller 3, the shell 5 and the end cover 12.
Referring to fig. 1 and 2, a main shaft 11 passes through an end cover 12 and a housing 5 and is bolted to a turbine 4, and a bearing 15 is fixed to the circumferential surface of the main shaft 11. Two bearings 15 are provided, the two bearings 15 are respectively close to two ends of the main shaft 11, one bearing 15 is located between the pump impeller 3 and the main shaft 11, and the other main shaft 11 is located between the housing 5 and the main shaft 11. The housing 5 and the pump impeller 3 are in contact with the circumferential surfaces of the bearings 15, respectively. The end cover 12 is provided with a first oil seal 141, the first oil seal 141 is tightly propped between the end cover 12 and the main shaft 11, the rear auxiliary chamber 2 is provided with a second oil seal 142, and the second oil seal 142 is tightly propped between the rear auxiliary chamber 2 and the main shaft 11. The first oil seal 141 has an inner diameter larger than that of the second oil seal 142, and the first oil seal 141 and the second oil seal 142 respectively enclose circumferential surfaces of both ends of the main shaft 11. Both bearings 15 are located between the first oil seal 141 and the second oil seal 142.
Referring to fig. 1 and 2, a connecting shaft 6 is fixed at one end of the main shaft 11 close to the end cover 12, one end of the connecting shaft 6 is inserted into the main shaft 11 and is fixedly connected with the main shaft 11, and the other end is connected with a brake wheel 7. The connecting shaft 6 is connected with a power source through a brake wheel 7, and the central shaft of the connecting shaft 6 and the central shaft of the main shaft 11 are positioned on the same straight line. An elastic rubber block 13 is arranged between the brake wheel 7 and the connecting shaft 6 and used for preventing the brake wheel 7 from directly contacting with the connecting shaft 6, so that the wear resistance of the contact surface of the brake wheel 7 and the connecting shaft 6 is improved, and the sealing performance is better.
Referring to fig. 1 and 2, the pump impeller 3 is provided with a fusible plug 10, and the fusible plug 10 is inserted into the pump impeller 3 and is in threaded connection with the pump impeller 3. The fusible plug 10 is internally provided with a low-melting-point alloy retention hole, the low-melting-point alloy retention hole penetrates through two ends of the fusible plug 10, and the fusible plug 10 is filled with low-melting-point alloy.
Referring to fig. 1 and 2, a fan unit 8 is fixed to the rear sub chamber 2 on a side facing the pump impeller 3. The fan device 8 includes a fan blade 81 and a mesh cover 82, the fan blade 81 and the mesh cover 82 are both fixed to the peripheral surface of the rear auxiliary chamber 2, and the fan blade 81 is accommodated in the mesh cover 82. The fan blades 81 are provided with a plurality of pieces, and the plurality of pieces of fan blades 81 are uniformly distributed on the circumferential surface of the rear auxiliary chamber 2. The outer surface of the pump wheel 3 is fixed with a jacket 9, and a semiconductor refrigeration sheet 16 is fixed in the jacket 9.
Because the connecting disc 1, the rear auxiliary chamber 2, the pump impeller 3, the shell 5 and the end cover 12 are fixed in sequence, and the main shaft 11 is fixed with the turbine 4, when the power source drives the main shaft 11 to rotate, the turbine 4 rotates at a high speed, and the connecting disc 1, the rear auxiliary chamber 2, the pump impeller 3, the shell 5 and the end cover 12 start to rotate under the action of liquid power. When the rear auxiliary chamber 2 rotates, the fan blades 81 also rotate at a high speed, so that wind on the side surfaces of the fan blades 81 is pushed to the front, and wind continuously blown to the pump impeller 3 and the shell 5 is generated, so that the temperature of the hydraulic coupler is reduced, and the hydraulic coupler is prevented from being excessively heated.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.
Claims (7)
1. The utility model provides a safe type fluid coupling, includes connection pad (1), back assistance room (2), pump impeller (3), turbine (4), shell (5), main shaft (11) and end cover (12), and connection pad (1), back assistance room (2), pump impeller (3), shell (5) and end cover (12) connect gradually, turbine (4) are located in shell (5), main shaft (11) are passed end cover (12) with shell (5) and with turbine (4) are fixed, characterized by: the fan device (8) is used for blowing air to the pump wheel (3), and the fan device (8) is fixed on the rear auxiliary chamber (2);
fan device (8) include flabellum (81) and screen panel (82), flabellum (81) with screen panel (82) are all fixed back is assisted room (2) surface all around, flabellum (81) hold in screen panel (82).
2. A safety hydraulic coupling as claimed in claim 1, wherein: the outer surface of the pump wheel (3) is fixed with a jacket (9), and a semiconductor refrigeration sheet (16) is fixed in the jacket (9).
3. A safety hydraulic coupling as claimed in claim 2, wherein: the fan blades (81) are provided with a plurality of pieces, and the fan blades (81) are uniformly distributed on the circumferential surface of the rear auxiliary chamber (2).
4. A safety hydraulic coupling as claimed in claim 1, wherein: the pump wheel (3) is provided with an fusible plug (10), and the fusible plug (10) is inserted into the pump wheel (3) and is in threaded connection with the pump wheel (3).
5. A safety hydraulic coupling as claimed in claim 1, wherein: the end cover (12) is provided with a first oil seal (141), and the first oil seal (141) is tightly propped between the end cover (12) and the main shaft (11);
a second oil seal (142) is arranged on the rear auxiliary chamber (2), and the second oil seal (142) is tightly propped between the rear auxiliary chamber (2) and the main shaft (11);
the inner diameter of the first oil seal (141) is larger than that of the second oil seal (142).
6. A safety hydraulic coupling as claimed in claim 1, wherein: the main shaft (11) is close to one end of the end cover (12) and is fixedly provided with a connecting shaft (6), one end of the connecting shaft (6) is fixed on the main shaft (11), and the other end of the connecting shaft is connected with a brake wheel (7).
7. A safety hydraulic coupling as claimed in claim 1, wherein: the rear auxiliary chamber (2) is a lengthened rear auxiliary chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921969674.7U CN210920007U (en) | 2019-11-15 | 2019-11-15 | Safe type fluid coupling ware |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921969674.7U CN210920007U (en) | 2019-11-15 | 2019-11-15 | Safe type fluid coupling ware |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210920007U true CN210920007U (en) | 2020-07-03 |
Family
ID=71346395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921969674.7U Expired - Fee Related CN210920007U (en) | 2019-11-15 | 2019-11-15 | Safe type fluid coupling ware |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210920007U (en) |
-
2019
- 2019-11-15 CN CN201921969674.7U patent/CN210920007U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200703 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |