CN116928229B - Cooling device for tightener bearing - Google Patents
Cooling device for tightener bearing Download PDFInfo
- Publication number
- CN116928229B CN116928229B CN202311175408.8A CN202311175408A CN116928229B CN 116928229 B CN116928229 B CN 116928229B CN 202311175408 A CN202311175408 A CN 202311175408A CN 116928229 B CN116928229 B CN 116928229B
- Authority
- CN
- China
- Prior art keywords
- resistor
- operational amplifier
- transistor
- mos transistor
- twenty
- 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.)
- Active
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 41
- 239000000498 cooling water Substances 0.000 claims abstract description 32
- 239000003990 capacitor Substances 0.000 claims abstract description 14
- 238000005096 rolling process Methods 0.000 claims 1
- 230000000630 rising effect Effects 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 230000003071 parasitic effect Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Landscapes
- Amplifiers (AREA)
- Mounting Of Bearings Or Others (AREA)
Abstract
The invention discloses a cooling device for a tightener bearing, which relates to the technical field of bearing cooling and comprises a control module, a cooling pump, a cooling water tank and a bearing seat, wherein the control module is connected with the bearing seat, the cooling pump and the cooling water tank, the cooling pump is connected with the bearing seat, the control module comprises a first thermistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first operational amplifier and a first capacitor, and the first thermistor is packaged in the bearing seat.
Description
Technical Field
The invention relates to the technical field of bearing cooling, in particular to a cooling device for a tightener bearing.
Background
The temperature of the steel strip coil in the collecting area is higher, the tightening machine can heat the bearing of the clamping roller when tightening the coil, and the lubricating grease can be changed into thin oil when the temperature of the bearing is too high, so that the bearing loses the lubricating effect and the number is announced; CN211693264U discloses a cooling device for a bearing of a tightener, which can cool the bearing of the tightener, and starts cooling water circulation when cooling water in a cooling water tank reaches a certain temperature so as to accelerate cooling of the bearing, but when the bearing heats up, because a certain amount of cooling water exists in the water tank, the heating speed of the bearing is higher than that of the cooling water in the water tank, and the temperature of the bearing cannot be effectively controlled when the cooling water circulation is not started in the water tank.
Disclosure of Invention
The invention aims to provide a cooling device for a tightener bearing, which comprises a control module, a cooling pump, a cooling water tank and a bearing seat, wherein the control module is connected with the bearing seat, the cooling pump and the cooling water tank, the cooling pump is connected with the bearing seat, the control module comprises a first thermistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a first operational amplifier U1 and a first capacitor C1, the first thermistor R1 is packaged in the bearing seat, one end of the first thermistor R1 is connected with a power supply, one end of the second resistor R2 is connected with the other end of the first thermistor R1, the same-phase end of the first operational amplifier U1 is connected between the first thermistor R1 and the second resistor R2, one end of the third resistor R3 is connected with the output end of the first operational amplifier U1, one end of the fourth resistor R4 is connected between the inverting end of the first operational amplifier U1 and the third resistor R3, the other end of the fourth resistor R4 is connected with the first capacitor C5, and the other end of the fourth resistor R4 is connected with the first capacitor C1 and the other end of the fifth resistor R5 is connected between the first thermistor R1 and the second end of the fourth resistor R2.
Further, the control module further comprises a first connecting terminal P1, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a second operational amplifier U2, a first MOS transistor Q1, a second triode Q2, a third triode Q3, a fourth MOS transistor Q4, a fifth MOS transistor Q5, a first light emitting diode D1, a second light emitting diode D2, a source electrode of the first MOS transistor Q1 is connected between the third resistor R3 and the fourth resistor R4, a grid electrode of the first MOS transistor Q1 is connected between the end of the fourth resistor R4, the end of the fifth resistor R5 and the end of the first capacitor C1, a drain electrode of the first MOS transistor Q1 is connected with an in-phase end of the second operational amplifier U2, one end of the sixth resistor R6 is connected with a power supply, the other end of the sixth resistor R6 is connected with the second triode Q2, one end of the seventh resistor R7 is connected with the power supply, the other end of the seventh resistor R7 is connected with the collector of the third triode Q3, the base of the second triode Q2 is connected between the seventh resistor R7 and the third triode Q3, the inverting terminal of the second operational amplifier U2 is connected between the seventh resistor R7 and the third triode Q3, the drain of the fourth MOS tube Q4 is connected with a power supply, the grid of the fourth MOS tube Q4 is connected with the output terminal of the second operational amplifier U2, the source of the fourth MOS tube Q4 is connected between the sixth resistor R6 and the second triode Q2, the non-inverting terminal of the third operational amplifier U3 is connected between the sixth resistor R6 and the second triode Q2, the inverting terminal of the third operational amplifier U3 is connected between the seventh resistor R7 and the third triode Q3, the base of the third triode Q3 is connected with the non-inverting terminal of the third operational amplifier U3, one end of the first LED D1 is connected with the output terminal of the third operational amplifier U3, one end of the ninth resistor R9 is connected with the other end of the first LED D1, the first connecting terminal P1 is connected with the cooling pump, one end of the tenth resistor R10 is connected with a power supply, one end of the eleventh resistor R11 is connected with the other end of the tenth resistor R10, a source electrode of the fifth MOS tube Q5 is connected between the tenth resistor R10 and the eleventh resistor R11, one end of the first light emitting diode D1 is connected with a drain electrode of the fifth MOS tube Q5, a grid electrode of the fifth MOS tube Q5 is connected between the output end of the third operational amplifier U3 and the first light emitting diode D1, one end of the twelfth resistor R12 is connected with the other end of the second light emitting diode D2, and an emitter of the second triode Q2, an emitter of the third triode Q3, the other end of the ninth resistor R9, the other end of the eleventh resistor R11, the other end of the twelfth resistor R12 and the grounding end are connected.
Further, the control module further comprises a fifteenth thermistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a fifth operational amplifier U5, a sixth operational amplifier U6 and a seventh MOS tube Q7, wherein the fifteenth thermistor R15 is packaged in the cooling water tank, one end of the fifteenth thermistor R15 is connected with a power supply, one end of the sixteenth resistor R16 is connected with the other end of the fifteenth thermistor R15, the same-phase end of the fifth operational amplifier U5 is connected between the fifteenth thermistor R15 and the sixteenth resistor R16, one end of the seventeenth resistor R17 is connected with the output end of the fifth operational amplifier U5, the other end of the seventeenth resistor R17 is connected with the inverting end of the fifth operational amplifier U5, one end of the eighteenth resistor R18 is connected between the output end of the fifth operational amplifier U5 and the seventeenth resistor R17, the same-phase end of the sixth operational amplifier U6 is connected between the output end of the fifth operational amplifier U5 and the seventeenth resistor R17, the inverting end of the sixth operational amplifier U6 is connected between the first MOS tube Q1 and the gate electrode C1 and the seventeenth resistor R17, the inverting end of the seventh MOS tube Q6 is connected with the other end of the seventeenth MOS tube Q7, the other end of the seventeenth MOS tube Q7 is connected with the output end of the seventeenth MOS tube Q7, the drain electrode Q7 is connected with the other end of the seventeenth MOS tube Q7.
Further, the control module further includes a thirteenth resistor R13, a fourteenth resistor R14, a fourth operational amplifier U4, and a sixth MOS transistor Q6, where one end of the thirteenth resistor R13 is connected to the power supply, one end of the fourteenth resistor R14 is connected to the other end of the thirteenth resistor R13, the non-inverting end of the fourth operational amplifier U4 is connected between the first thermistor R1 and the second resistor R2, the inverting end of the fourth operational amplifier U4 is connected between the thirteenth resistor R13 and the fourteenth resistor R14, the output end of the fourth operational amplifier U4 is connected to the gate of the sixth MOS transistor Q6, the source of the sixth MOS transistor Q6 is connected to the non-inverting end of the second operational amplifier U2, and the other end of the fourteenth resistor R14, the drain of the sixth MOS transistor Q6, and the ground terminal are connected.
Further, the control module further includes an eighth resistor R8, one end of the eighth resistor R8 is connected between the in-phase end of the second operational amplifier U2 and the drain electrode of the first MOS transistor Q1, and the other end of the eighth resistor R8 is connected with the ground end.
Further, the control module further comprises a nineteenth resistor R19, one end of the nineteenth resistor R19 is connected to the grid electrode of the fourth MOS tube Q4 and the output end of the second operational amplifier U2, and the other end of the nineteenth resistor R19 is connected to the ground end.
Further, the control module further comprises a twenty-first resistor R21, one end of the twenty-first resistor R21 is connected to the grid electrode of the seventh MOS tube Q7 and the output end of the sixth operational amplifier U6, and the other end of the twenty-first resistor R21 is connected to the ground end.
Further, the control module further comprises a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a seventh operational amplifier U7, a second connecting terminal P2 and a third connecting terminal P3, one end of the twenty-second resistor R22 is connected with a power supply, one end of the twenty-third resistor R23 is connected with the other end of the twenty-second resistor R22, an inverting end of the seventh operational amplifier U7 is connected between the twenty-second resistor R22 and the twenty-third resistor R23, an in-phase end of the seventh operational amplifier U7 is connected with the second connecting terminal P2, one end of the twenty-fourth resistor R24 is connected with an output end of the seventh operational amplifier U7, the third connecting terminal P3 is connected with a cooling water tank, and the other ends of the twenty-third resistor R23 and the twenty-fourth resistor R24 are connected with a ground end.
Further, the control module further includes a twentieth resistor R20, one end of the twentieth resistor R20 is connected to the gate of the sixth MOS transistor Q6 and the output end of the fourth operational amplifier U4, and the other end of the twentieth resistor R20 is connected to the ground end.
Compared with the prior art, the invention has the beneficial effects that:
the invention can control whether the cooling pump cools the bearing according to the lowest working temperature of the bearing and the temperature rising speed during the temperature rising of the bearing.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following description will briefly explain the drawings needed in the prior art and the embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of an overall structure provided by the present invention.
Fig. 2 and 3 are schematic diagrams of control module structures.
Detailed Description
In order that the objects and advantages of the invention will become more readily apparent, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings, it being understood that the following text is only intended to describe one or more specific embodiments of the invention and is not intended to limit the scope of the invention as defined in the appended claims.
Referring to the drawings, in this embodiment, the bearing housing feeds back the bearing temperature to the control module, the control module is used for controlling the cooling pump and the cooling water tank to work, the cooling pump and the cooling water tank cool the bearing housing, the purpose of cooling the bearing is achieved by reducing the temperature of the bearing housing, in order to prevent signal interference and loss between the first thermistor R1 and the second resistor R2 caused by lower output, the signal converts the current signal into the voltage signal when passing through the first thermistor R1 and the second resistor R2, the voltage amplitude at the end of the second resistor R2 is the real-time temperature of the bearing, the signal between the first thermistor R1 and the second resistor R2 is fed back to the in-phase end of the first operational amplifier U1, the inverting end of the first operational amplifier U1, the third resistor R3, the fourth resistor R4 and the fifth resistor R5 form negative feedback output, and meanwhile, the voltage signal between the first thermistor R1 and the second resistor R2 is isolated, so that the signal between the fourth resistor R4 and the fifth resistor R5 causes interference and loss when lower output is prevented, and the signal is fed back to the first capacitor C1.
In this embodiment, because a certain amount of cooling water is stored in the cooling water tank, the temperature rising speed of the bearing is faster than the temperature rising speed of the cooling water in the water tank, and the water circulation is not started to accelerate the temperature reduction of the bearing when the temperature of the cooling water does not reach the set temperature amplitude, in order to prevent the temperature of the bearing from being too high before the cooling water circulation is not started in the cooling water tank, the cooling pump is started to cool when the temperature of the bearing rises too fast, the signal between the third resistor R3 and the fourth resistor R4 is fed back to the source electrode of the first MOS tube Q1, the voltage between the fourth resistor R4 and the first capacitor C1 is fed back to the grid electrode of the first MOS tube Q1, the signal amplitude between the fourth resistor R4 and the first capacitor C1 is delayed from the signal amplitude between the third resistor R3 and the fourth resistor R4, the resistance value of the fourth resistor R4 can be set as required, the resistance value of the fourth resistor R4 is changed to adjust the potential rising speed of the first capacitor C1, when the voltage amplitude of the end of the second resistor R2 rises and the grid electrode of the first MOS transistor Q1 and the source electrode of the first MOS transistor Q1 reach the conduction pressure difference, the first MOS transistor Q1 is conducted, the signal between the third resistor R3 and the fourth resistor R4 is fed back to the same phase end of the second operational amplifier U2 through the source electrode of the first MOS transistor Q1 and the drain electrode of the first MOS transistor Q1, the eighth resistor R8 prevents the second operational amplifier U2 from being virtually short, the sixth resistor R6 prevents the second triode Q2 from breakdown, the power signal is fed back to the base electrode of the third triode Q3 through the sixth resistor R6 and enables the base electrode of the third triode Q3 and the emitter electrode of the third triode Q3 to generate forward bias, the collector current of the third triode Q3 is amplified, the seventh resistor R7 prevents the third triode Q3 from breakdown, the power signal is fed back to the base electrode of the second triode Q2 through the seventh resistor R7 and enables the base electrode of the second triode Q2 and the emitter electrode of the second triode Q2 to generate forward bias, the current of the second triode Q2 is amplified, when the first MOS transistor Q1 is conducted, the output signal of the output end of the second operational amplifier U2 is fed back to the grid electrode of the fourth MOS transistor Q4, the grid electrode of the fourth MOS transistor Q4 and the source electrode of the fourth MOS transistor Q4 reach the conduction pressure difference, the power supply signal is fed back to the grounding end loop through the drain electrode of the fourth MOS transistor Q4, the source electrode of the fourth MOS transistor Q4, the collector electrode of the second triode Q2 and the emitting electrode of the second triode Q2, the voltage amplitude of the collector end of the second triode Q2 is larger than the voltage amplitude of the collector end of the third triode Q3, the nineteenth resistor R19 discharges the parasitic capacitance voltage of the grid electrode of the fourth MOS transistor Q4, the signal between the seventh resistor R7 and the third triode Q3 is fed back to the inverting end of the third operational amplifier U3, the source signal of the fourth MOS transistor Q4 is synchronously fed back to the non-inverting end of the third operational amplifier U3, the output signal of the output end of the third operational amplifier U3 is fed back to the cooling pump through the first connecting terminal P1 by the first light emitting diode D1 and the ninth resistor R9 to the grounding end loop, the on-state table of the first light emitting diode D1 is an indication signal for starting the cooling pump, the cooling pump is started when the output end of the third operational amplifier U3 outputs high level, the cooling pump is closed when the output end of the third operational amplifier U3 outputs low level, the cooling pump is started to cool the bearing, so that the bearing cannot be cooled in time when the bearing temperature rises too fast and the temperature difference of water tank cooling water is too large, the output end signal of the third operational amplifier U3 is synchronously fed back to the grid electrode of the fifth MOS tube Q5, the grid electrode of the fifth MOS tube Q5 and the source electrode of the fifth MOS tube Q5 reach on-state pressure difference when the output end of the third operational amplifier U3 outputs low level, and the power supply signal reaches the on-state pressure difference through the tenth resistor R10, the eleventh resistor R11 is connected to the grounding end loop, the tenth resistor R10 and the eleventh resistor R11 are divided into a fifth MOS tube Q5 source electrode feedback signal, the eleventh resistor R11 end signal is connected to the grounding end loop through the fifth MOS tube Q5 source electrode, the fifth MOS tube Q5 drain electrode, the second light emitting diode D2 and the twelfth resistor R12, and the second light emitting diode D2 conduction table is an indication signal for closing the cooling pump.
In this embodiment, in order to prevent signal interference and loss between the fifteenth thermistor R15 and the sixteenth resistor R16 caused by the lower-stage output, the signal is converted into a voltage signal by the fifteenth thermistor R15 and the sixteenth resistor R16, the voltage amplitude table at the end of the sixteenth resistor R16 is the temperature of the cooling water in the cooling water tank, the signal between the fifteenth thermistor R15 and the sixteenth resistor R16 is fed back to the non-inverting end of the fifth operational amplifier U5, the seventeenth resistor R17 and the eighteenth resistor R18 form a negative feedback output, and the voltage signal between the fifteenth thermistor R15 and the sixteenth resistor R16 is isolated to prevent interference and loss caused by the lower-stage output, the signal between the output end of the fifth operational amplifier U5 and the seventeenth resistor R17 is fed back to the non-inverting end of the sixth operational amplifier U6, the signal between the first capacitor C1 and the grid electrode of the first MOS tube Q1 is fed back to the inverting terminal of the sixth operational amplifier U6, when the output terminal of the sixth operational amplifier U6 outputs the signal, the signal is fed back to the grid electrode of the seventh MOS tube Q7, the grid electrode of the seventh MOS tube Q7 and the source electrode of the seventh MOS tube Q7 reach the conduction pressure difference, the collector current of the second triode Q2 is discharged when the seventh MOS tube Q7 is conducted, the parasitic capacitance voltage of the grid electrode of the seventh MOS tube Q7 is discharged by the twenty-first resistor R21, the signal amplitude of the sixteenth resistor R16 is fed back to the non-inverting terminal of the seventh operational amplifier U7 through the second connecting terminal P2, the power supply is fed back to the grounding terminal loop through the twenty-second resistor R22 and the twenty-third resistor R23, the voltage amplitude table of the twenty-third resistor R23 is the cooling water circulation set amplitude, the twenty-fourth resistor R24 is the pull-down resistor of the output terminal of the seventh operational amplifier U7, when the seventh operational amplifier U7 outputs the signal through the third connecting terminal P3, the cooling water tank is started to circulate cooling water when the output end of the seventh operational amplifier U7 outputs high level, and the cooling water tank is closed to circulate cooling water when the output end of the seventh operational amplifier U7 outputs low level.
In this embodiment, in order to prevent the temperature amplitude during the bearing temperature rising from not reaching the lowest operating temperature amplitude of the temperature threshold of the best operation of the bearing, the cooling pump is started to cool the bearing, the cooling pump needs to be limited when the temperature amplitude of the bearing temperature rising is not reaching the lowest operating temperature amplitude, the power supply signal is fed back to the inverting terminal of the fourth operational amplifier U4 through the thirteenth resistor R13 and the fourteenth resistor R14 to the ground terminal loop, the signal amplitude between the thirteenth resistor R13 and the fourteenth resistor R14 is fed back to the inverting terminal of the fourth operational amplifier U4, the signal at the end of the second resistor R2 is fed back to the same phase terminal of the fourth operational amplifier U4, when the temperature of the bearing is higher than the lowest temperature amplitude, the output signal at the output end of the fourth operational amplifier U4 is fed back to the gate of the sixth MOS transistor Q6 and the source of the sixth MOS transistor Q6 cannot reach the conduction voltage difference, the sixth MOS transistor Q6 is cut off, and when the temperature of the bearing is lower than the lowest temperature amplitude, the fourth MOS transistor Q6 is cut off, the voltage of the sixth MOS transistor Q6 is cut off, and the drain electrode of the fourth MOS transistor Q6 is connected to the drain electrode of the parasitic transistor Q6 is connected to the drain electrode of the parasitic transistor Q6.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (8)
1. The cooling device for the tightener bearing is characterized by comprising a control module, a cooling pump, a cooling water tank and a bearing seat, wherein the control module is connected with the bearing seat, the cooling pump and the cooling water tank, the cooling pump is connected with the bearing seat, the control module comprises a first thermistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a first operational amplifier and a first capacitor, the first thermistor is packaged in the bearing seat, one end of the first thermistor is connected with a power supply, one end of the second resistor is connected with the other end of the first thermistor, the same-phase end of the first operational amplifier is connected between the first thermistor and the second resistor, one end of the third resistor is connected with the output end of the first operational amplifier, the other end of the third resistor is connected with the inverting end of the first operational amplifier, one end of the fourth resistor is connected with one end of the fifth resistor, one end of the first capacitor is connected between the fourth resistor and the fifth resistor, the second resistor, the other end of the first capacitor is connected with a ground end of the fifth resistor, the control module further comprises a sixth terminal, a seventh resistor, a eighth transistor, a ninth transistor, a grid, a transistor, a third transistor, a fifth transistor, a MOS (MOS) and a transistor), the drain of the first MOS transistor is connected with the same phase end of the second operational amplifier, the source of the fourth MOS transistor is connected between the sixth resistor and the second triode, the same phase end of the third operational amplifier is connected between the sixth resistor and the second triode, the opposite phase end of the third operational amplifier is connected between the seventh resistor and the third triode, the opposite phase end of the ninth resistor is connected between the seventh resistor and the third triode, the drain of the fourth MOS transistor is connected with the power supply, the grid of the fourth MOS transistor is connected with the output end of the second operational amplifier, the source of the fourth MOS transistor is connected between the sixth resistor and the second triode, the same phase end of the third operational amplifier is connected between the sixth resistor and the second triode, the opposite phase end of the third operational amplifier is connected between the seventh resistor and the third triode, the base of the third triode is connected with the same phase end of the third operational amplifier, the first end of the first LED is connected with the output end of the third operational amplifier, the ninth resistor is connected with the other end of the ninth diode, the first connection terminal is connected with the cooling pump, the tenth end is connected with the power supply, the eleventh resistor is connected with the tenth end of the eleventh resistor, the eleventh resistor is connected with the drain of the eleventh transistor, the eleventh resistor is connected with the other end of the eleventh transistor, the eleventh resistor is connected with the drain of the eleventh transistor, the eleventh transistor is connected with the output end of the eleventh transistor, the eleventh transistor is connected with the eleventh transistor, the other end of the twelfth resistor is connected with the ground terminal.
2. The cooling device for a tightener bearing according to claim 1, wherein the control module further comprises a fifteenth thermistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a fifth operational amplifier, a sixth operational amplifier, and a seventh MOS transistor, wherein the fifteenth thermistor is packaged in the cooling water tank, one end of the fifteenth thermistor is connected to the power supply, one end of the sixteenth resistor is connected to the other end of the fifteenth thermistor, the same-phase end of the fifth operational amplifier is connected between the fifteenth thermistor and the sixteenth resistor, one end of the seventeenth resistor is connected to the output end of the fifth operational amplifier, the other end of the seventeenth resistor is connected to the inverting end of the fifth operational amplifier, one end of the eighteenth resistor is connected between the output end of the fifth operational amplifier and the seventeenth resistor, the inverting end of the sixth operational amplifier is connected between the gate of the first MOS transistor and the first capacitor, the output end of the sixth operational amplifier is connected to the gate of the seventh MOS transistor, the drain of the seventh transistor is connected to the third triode, the other end of the seventeenth transistor is connected to the drain, and the other end of the eighteenth transistor is connected to the drain of the seventeenth resistor.
3. The cooling device for the tightener bearing of claim 1, wherein the control module further comprises a thirteenth resistor, a fourteenth resistor, a fourth operational amplifier, and a sixth MOS transistor, one end of the thirteenth resistor is connected to the power supply, one end of the fourteenth resistor is connected to the other end of the thirteenth resistor, the non-inverting end of the fourth operational amplifier is connected between the first thermistor and the second resistor, the inverting end of the fourth operational amplifier is connected between the thirteenth resistor and the fourteenth resistor, the output end of the fourth operational amplifier is connected to the gate of the sixth MOS transistor, the source of the sixth MOS transistor is connected to the non-inverting end of the second operational amplifier, and the other end of the fourteenth resistor, the drain of the sixth MOS transistor, and the ground terminal are connected.
4. The cooling device for a tightener bearing as defined in claim 1, wherein the control module further comprises an eighth resistor, one end of the eighth resistor is connected between the second operational amplifier in-phase end and the first MOS transistor drain, and the other end of the eighth resistor is connected to the ground.
5. The cooling device for a tightener bearing as defined in claim 1, wherein the control module further comprises a nineteenth resistor, one end of the nineteenth resistor is connected to the gate of the fourth MOS transistor and the output end of the second operational amplifier, and the other end of the nineteenth resistor is connected to the ground.
6. The cooling device for a tightener bearing as claimed in claim 2, wherein the control module further comprises a twenty-first resistor, one end of the twenty-first resistor is connected to the gate of the seventh MOS transistor and the output end of the sixth operational amplifier, and the other end of the twenty-first resistor is connected to the ground.
7. The cooling device for a tight rolling machine bearing according to claim 2, wherein the control module further comprises a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a seventh operational amplifier, a second connection terminal, and a third connection terminal, one end of the twenty-second resistor is connected to the power supply, one end of the twenty-third resistor is connected to the other end of the twenty-second resistor, an inverting end of the seventh operational amplifier is connected between the twenty-second resistor and the twenty-third resistor, an in-phase end of the seventh operational amplifier is connected to the second connection terminal, one end of the twenty-fourth resistor is connected to an output end of the seventh operational amplifier, the third connection terminal is connected to the cooling water tank, and the other ends of the twenty-third resistor, the twenty-fourth resistor are connected to the ground.
8. A cooling device for a tightener bearing as claimed in claim 3, wherein the control module further comprises a twentieth resistor, one end of the twentieth resistor is connected to the gate of the sixth MOS transistor and the output end of the fourth operational amplifier, and the other end of the twentieth resistor is connected to the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311175408.8A CN116928229B (en) | 2023-09-13 | 2023-09-13 | Cooling device for tightener bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311175408.8A CN116928229B (en) | 2023-09-13 | 2023-09-13 | Cooling device for tightener bearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116928229A CN116928229A (en) | 2023-10-24 |
| CN116928229B true CN116928229B (en) | 2023-12-26 |
Family
ID=88382818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311175408.8A Active CN116928229B (en) | 2023-09-13 | 2023-09-13 | Cooling device for tightener bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116928229B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117311457B (en) * | 2023-11-29 | 2024-02-13 | 北京比格凯特科技有限公司 | Display card over-frequency circuit |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4870310A (en) * | 1988-03-02 | 1989-09-26 | Triplett Billy R | Portable crash-survivable kinetic energy storage machine |
| CN207013023U (en) * | 2017-05-16 | 2018-02-16 | 深圳市圣威宝混凝土有限公司 | Concrete breaker and regeneration concrete recovery system |
| GB202206036D0 (en) * | 2021-12-01 | 2022-06-08 | Edwards Japan Ltd | Vacuum pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102597442B1 (en) * | 2021-04-26 | 2023-11-03 | 엘지전자 주식회사 | Power transforming apparatus and air conditioner including the same |
-
2023
- 2023-09-13 CN CN202311175408.8A patent/CN116928229B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4870310A (en) * | 1988-03-02 | 1989-09-26 | Triplett Billy R | Portable crash-survivable kinetic energy storage machine |
| CN207013023U (en) * | 2017-05-16 | 2018-02-16 | 深圳市圣威宝混凝土有限公司 | Concrete breaker and regeneration concrete recovery system |
| GB202206036D0 (en) * | 2021-12-01 | 2022-06-08 | Edwards Japan Ltd | Vacuum pump |
Non-Patent Citations (2)
| Title |
|---|
| 基于MC9S12单片机的汽车发动机智能冷却泵控制系统设计;文凯;张颖;朱昊;王华生;杨佩琦;刘艺;;机电工程技术(09);全文 * |
| 模拟电路实用知识讲座(7) 第七讲 集成运算放大器及其应用(上);李金平;电子世界(第10期);全文 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116928229A (en) | 2023-10-24 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN116928229B (en) | Cooling device for tightener bearing | |
| CN103560716B (en) | Auxiliary fuel pump electric control system and the method realizing soft start thereof | |
| KR870008243A (en) | Reference voltage generation circuit | |
| CN116526847B (en) | Switching power supply circuit with protection adjustment function | |
| KR860007753A (en) | Semiconductor current collector circuit | |
| CN203796600U (en) | Fan rotational-speed control device | |
| KR950026102A (en) | Current buffer circuit with improved charge rate for the input signal | |
| CN101741268B (en) | Pulse width modulation control circuit of AC/DC switch power supply | |
| CN109687596B (en) | Power supply for power transmission line monitoring equipment | |
| CN220730702U (en) | Container temperature control circuit | |
| CN102566648B (en) | Soft start controller | |
| CN211126439U (en) | High-power semiconductor laser drive protection circuit | |
| CN117750582B (en) | Multifunctional intelligent dimming control circuit | |
| CN219329608U (en) | Overcurrent protection control circuit and dehumidifier | |
| CN205657611U (en) | Direct current fan starts current -limiting circuit | |
| CN212783573U (en) | Thermal management system and new energy automobile | |
| CN115276627B (en) | Gallium nitride MOSFET conduction loss power limiting circuit | |
| CN213815711U (en) | Electromagnet full-voltage starting low-current retaining device | |
| US3453527A (en) | Voltage regulators for use with generators having field windings | |
| CN117650493B (en) | Hot plug protection circuit for main board | |
| CN117320196B (en) | Anti-fog glass electric heating controller | |
| CN219012942U (en) | Intelligent fan driving circuit | |
| WO2023060997A1 (en) | Circuit structure for implementing current change control function | |
| CN205780063U (en) | Hydraulic system constant temperature control circuit | |
| CN105978320A (en) | Voltage regulation type constant current power supply based on current detection circuit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |