CN117307551A - Split-flow type integrated gear motor - Google Patents
Split-flow type integrated gear motor Download PDFInfo
- Publication number
- CN117307551A CN117307551A CN202311316378.8A CN202311316378A CN117307551A CN 117307551 A CN117307551 A CN 117307551A CN 202311316378 A CN202311316378 A CN 202311316378A CN 117307551 A CN117307551 A CN 117307551A
- Authority
- CN
- China
- Prior art keywords
- oil
- motor
- oil inlet
- valve
- port
- 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.)
- Pending
Links
- 239000003921 oil Substances 0.000 claims abstract description 175
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims description 4
- 239000000463 material Substances 0.000 abstract description 3
- 229910001018 Cast iron Inorganic materials 0.000 abstract description 2
- 230000001276 controlling effect Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 238000004378 air conditioning Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003032 molecular docking Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
- F15B15/08—Characterised by the construction of the motor unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention provides a split-flow type integrated gear motor, which comprises a motor and a control valve block integrated at the rear end of the motor, wherein the motor is a split-flow type integrated gear motor; the control valve block is provided with an oil inlet, a hydraulic control unloading valve for distributing the flow direction and the flow rate of hydraulic oil at the oil inlet, a two-position two-way electromagnetic valve for controlling the start and stop of a motor, an overflow valve for overflow and depressurization and an oil unloading port communicated with the two-position two-way electromagnetic valve; an oil inlet cavity and an oil outlet cavity are formed in two axial sides of a gear of the motor, the oil inlet is communicated with the oil inlet cavity through a first oil inlet channel, a first throttle valve is arranged at the joint of the oil inlet and the first oil inlet channel, and the oil outlet cavity is provided with an oil outlet. The split-flow type integrated motor abandons a heavy cast iron valve block, saves labor and materials and reduces the mass; the oil can continuously pass through the motor after the motor stops rotating, so that the motor can be connected in series into a hydraulic system; the internal adjustable throttle valve limits the highest rotating speed of the motor, so that the motor is not influenced by a hydraulic system, and the universality is stronger.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to a split-flow type integrated gear motor.
Background
In the existing engineering machinery, the traditional split motor mainly controls the start and stop of the motor by a control valve block, and then the compressor is driven by the rotation of the motor to realize the refrigeration of an air conditioning system; the control valve block is formed by machining an iron casting, so that the control valve block has the advantages of multiple materials, large volume and heavy weight, and the cost of the whole air conditioning system is high; the highest rotational speed of motor is fixed, receives hydraulic system influence, can't match the wider hydraulic system of flow scope, and the commonality is relatively poor.
Disclosure of Invention
The invention aims to provide a split-type integrated gear motor, which integrates the functions of a split-type motor and a valve block into a whole so as to solve the problems in the prior art.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the split-flow type integrated gear motor comprises a motor and a control valve block integrated at the rear end of the motor; the control valve block is provided with an oil inlet, a hydraulic control unloading valve for distributing the flow direction and the flow rate of hydraulic oil at the oil inlet, a two-position two-way electromagnetic valve for controlling the start and stop of a motor, an overflow valve for overflow and depressurization and an oil unloading port communicated with the two-position two-way electromagnetic valve; an oil inlet cavity and an oil outlet cavity are formed in two axial sides of a gear of the motor, the oil inlet is communicated with the oil inlet cavity through a first oil inlet channel, a first throttle valve is arranged at the joint of the oil inlet and the first oil inlet channel, and the oil outlet cavity is provided with an oil outlet.
Further, the hydraulic control unloading valve is provided with a first oil port, a second oil port and a third oil port, wherein the first oil port is perpendicular to the axial direction of the hydraulic control unloading valve, the third oil port is positioned at the axial tail end of the hydraulic control unloading valve, the first oil port is communicated with the oil inlet through the second oil inlet channel, the second oil port is communicated with the oil outlet cavity, the third oil port is communicated with the first oil inlet channel, and a throttle valve II is arranged at the joint of the third oil port and the first oil inlet channel.
Further, a cone valve and a spring are further arranged in the hydraulic control unloading valve, and one axial end of the spring is fixed at three positions of the oil liquid port, and the other axial end of the spring is connected with the cone valve.
Further, the two-position two-way electromagnetic valve can control the start and stop of the motor by controlling the on-off of the first oil inlet channel and the oil inlet cavity, when the two-position two-way electromagnetic valve is electrified, the first oil inlet channel is communicated with the oil inlet cavity, hydraulic oil enters the oil inlet cavity to drive the gear of the motor to rotate, and when the two-position two-way electromagnetic valve is normally open, the first oil inlet channel is disconnected with the oil inlet cavity, and the gear of the motor stops rotating.
According to the technical scheme, compared with the structure of the traditional split motor and the control valve, the split type integrated motor has the advantages that the mass is reduced by 2/3, the length is only 1-2 cm longer than that of the traditional motor with the same displacement, and a heavy cast iron valve block is abandoned, so that the split type integrated motor is convenient to assemble, saves labor and materials, and accords with the concept of green development; the motor can be connected into the hydraulic system in series by the oil liquid after stopping running, and an oil pipe and a joint are saved once in series relative to a parallel connection mode, and the maximum rotating speed of the motor is limited by an internally adjustable throttle valve, so that the motor can be matched with a hydraulic system with a wider flow range, is not influenced by the hydraulic system, and has strong universality.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a split-flow integrated gear motor according to the present invention;
FIG. 2 is a front and rear view of a split-flow integrated gear motor of the present invention;
FIG. 3 is a schematic diagram of the internal structure of a split-flow integrated gear motor according to the present invention;
FIG. 4 is a schematic diagram showing the internal structure of a split-flow type integrated gear motor according to the present invention;
FIG. 5 is a schematic diagram of the structure of the pilot operated unloader valve of the present invention;
FIG. 6 is a schematic diagram of the gear rotation of the two-position two-way solenoid valve control motor according to the present invention;
FIG. 7 is a schematic diagram of the principle of the two-position two-way solenoid valve of the present invention controlling the gear stall of the motor;
in the figure: 1. a motor; 11. an oil inlet cavity; 12. an oil outlet cavity; 13, an oil outlet; 2. a control valve block; 21. an oil inlet; 22. a hydraulically controlled unloading valve; 23. two-position two-way electromagnetic valve; 24. an overflow valve; 25. an oil discharge port; 3. an oil inlet channel I; 4. a throttle valve I; 5. an oil inlet channel II; 6. and a throttle valve II.
Detailed Description
A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.
The split-flow type integrated gear motor as shown in fig. 1-4 comprises a motor 1 and a control valve block 2 integrated at the rear end of the motor 1; the control valve block 2 is provided with an oil inlet 21, a hydraulic control unloading valve 22 for distributing the flow direction and the flow rate of hydraulic oil at the oil inlet, a two-position two-way electromagnetic valve 23 for controlling the start and stop of a motor, an overflow valve 24 for overflow and depressurization and an oil discharge port 25 communicated with the two-position two-way electromagnetic valve 23; an oil inlet cavity 11 and an oil outlet cavity 12 are formed in two axial sides of a gear of the motor, an oil inlet 21 is communicated with the oil inlet cavity 11 through an oil inlet channel I3, a throttle valve I4 is arranged at the joint of the oil inlet 21 and the oil inlet channel I3, and the oil outlet cavity 12 is provided with an oil outlet 13.
As shown in fig. 5, the hydraulic control unloading valve 22 according to the preferred embodiment is provided with a first oil port 221, a second oil port 222 and a third oil port 223 which are perpendicular to the axial direction of the hydraulic control unloading valve, wherein the first oil port 221 is communicated with the oil inlet 21 through the second oil inlet channel 5, the second oil port 222 is communicated with the oil outlet cavity 12, the third oil port 223 is communicated with the first oil inlet channel 3, and a throttle valve II 6 is arranged at the joint of the third oil port 223 and the first oil inlet channel 3; the hydraulic control unloading valve 22 is internally provided with a cone valve 224 and a spring 225, wherein one axial end of the spring 225 is fixed at the third 223 of the oil port, and the other axial end of the spring 225 is connected with the cone valve 224; in a specific use, when the oil pressure at the first oil port 221 is greater than the sum of the pre-tightening force of the spring 225 and the pressure at the third oil port 223, the cone valve 224 fails in sealing, and hydraulic oil can enter the oil outlet cavity from the first oil port 221 through the second oil port 222.
The throttle valve 4 and the throttle valve 6 according to the preferred embodiment are valves for controlling the flow rate of fluid by changing the throttle cross section or the throttle length.
The overflow valve 24 in the preferred embodiment adopts a direct-acting overflow valve, which mainly comprises a valve body, a valve core, a pressure regulating spring and a pressure regulating screw (or called handle), wherein the valve core is tightly attached to a valve seat under the action of the pressure regulating spring in a normal state, and an oil inlet and an oil outlet are not communicated (namely, the overflow valve is normally closed). When the overflow valve is connected into the system, hydraulic oil generates an acting force on the valve core, the direction of the acting force is opposite to that of the spring force, when the pressure of the oil inlet is lower than the set pressure of the overflow valve, the valve core is not opened, and the pressure of the oil inlet mainly depends on external load; when the acting force of the oil is larger than the spring force, the valve core is opened, and the oil flows back to the oil tank from the overflow port. The spring force increases with increasing opening amount of the relief valve until it is balanced with the hydraulic force. When the overflow valve starts to overflow, the pressure at the oil inlet is basically stabilized on a set value, so that the overflow pressure stabilization function is realized. The precompression amount of the spring can be adjusted through the pressure adjusting screw, and then the overflow pressure value of the overflow valve is set. In the present preferred embodiment, the maximum relief pressure value is set at 18MPa.
In a specific use, the two-position two-way electromagnetic valve 23 can control the start and stop of the motor 1 by controlling the on-off of the oil inlet channel I3 and the oil inlet cavity 11. Specific:
as shown in fig. 6, when the two-position two-way electromagnetic valve 23 is electrified, the oil inlet channel one 3 is communicated with the oil inlet cavity 11, a part of hydraulic oil enters the oil inlet cavity 11 through the throttle valve one 4 and the oil inlet channel one 3 to drive the gear of the motor 1 to rotate, a part of hydraulic oil flows into the hydraulically-controlled unloading valve 22 from the oil inlet port one 221 through the oil inlet channel two 5, and at the same time, a part of hydraulic oil flows into the oil inlet port three 223 through the throttle valve one 4 and the throttle valve two 6, so that the pressure of the part of hydraulic oil drops after passing through the two throttle valves, when the oil pressure at the oil inlet port one 221 is greater than the sum of the oil pressure at the oil inlet port three 223 and the pre-tightening force of the spring 225, the conical valve 224 is in failure in sealing, the hydraulic oil is unloaded from the oil inlet cavity one 221 through the oil inlet port two 222 into the oil outlet cavity 12 to flow out of the oil outlet 13, as the pressure continuously rises, the pressure difference at the oil inlet port one 221 and the oil inlet port three 223 is gradually increased, the oil passing cross section of the conical valve 224 is gradually increased, and finally the oil quantity entering the oil inlet cavity 11 of the motor 1 is controlled by the throttle valve one 4 under the throttling action of the throttle valve, so that the maximum oil quantity of the upper oil inlet cavity 11 reaches the maximum pressure of the oil inlet cavity 11, and the maximum pressure is prevented from exceeding the maximum pressure of the oil inlet system, and the maximum pressure of the pressure is avoided when the maximum pressure is introduced into the system, and the system is 18, and the maximum pressure is avoided.
As shown in fig. 7, when the two-position two-way solenoid valve 23 is normally open, the first oil inlet channel 3 is disconnected from the oil inlet cavity 11, and the oil pressure at the third oil inlet 223 is close to zero; the hydraulic oil flows through a two-position two-way solenoid valve 23 from an oil port III 223 after passing through a throttle valve I4, and directly flows back to an oil tank from an oil discharge port 25; along with the continuous increase of the oil quantity of the oil inlet 21, when the pressure at the first oil port 221 is greater than the pretightening force of the spring 225, the sealing of the cone valve 224 fails, the hydraulic oil pushes up the cone valve 224 to unload into the oil outlet cavity 12 of the motor 1 from the oil outlet 13 through the first oil port 221 to the second oil port 222, and the pressure difference enough to drive the gear of the motor 1 can not be established all the time in the oil inlet and outlet cavity of the motor 1 because the unloading capacity of the oil outlet 13 and the oil outlet 25 is greater than the oil inlet quantity of the oil inlet 21, and the motor stops rotating.
Therefore, the oil liquid can continuously pass through the motor after the motor stops running, so that the motor can be connected into a hydraulic system in series, and an oil pipe and a joint are saved once in series relative to a parallel connection mode, and the maximum rotating speed of the motor is limited by an internally adjustable throttle valve, so that the motor can be matched with a hydraulic system with wider flow range, is not influenced by the hydraulic system, and has strong universality.
In specific use, the split-flow type integrated motor can be used for docking an air conditioning system of engineering machinery, and can also be used as a cleaning motor, a walking motor, a heat dissipation motor, a fan motor and the like in municipal sanitation, special machinery and the industry of energy sources.
The above embodiments are merely illustrative of the preferred embodiments of the present invention and are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art to the technical solution of the present invention should fall within the protection scope defined by the claims of the present invention without departing from the design spirit of the present invention.
Claims (4)
1. The split-flow type integrated gear motor is characterized by comprising a motor and a control valve block integrated at the rear end of the motor;
the control valve block is provided with an oil inlet, a hydraulic control unloading valve for distributing the flow direction and the flow rate of hydraulic oil at the oil inlet, a two-position two-way electromagnetic valve for controlling the start and stop of a motor, an overflow valve for overflow and depressurization and an oil unloading port communicated with the two-position two-way electromagnetic valve;
an oil inlet cavity and an oil outlet cavity are formed in two axial sides of a gear of the motor, the oil inlet is communicated with the oil inlet cavity through a first oil inlet channel, a first throttle valve is arranged at the joint of the oil inlet and the first oil inlet channel, and the oil outlet cavity is provided with an oil outlet.
2. The split-flow type integrated gear motor according to claim 1, wherein the hydraulic unloading valve is provided with a first oil port, a second oil port and a third oil port which are perpendicular to the axial direction of the hydraulic unloading valve, the third oil port is positioned at the axial tail end of the hydraulic unloading valve, the first oil port is communicated with the oil inlet through a second oil inlet channel, the second oil port is communicated with the oil outlet cavity, the third oil port is communicated with the first oil inlet channel, and a throttle valve II is arranged at the joint of the third oil port and the first oil inlet channel.
3. The split-flow type integrated gear motor according to claim 2, wherein a cone valve and a spring are further arranged in the hydraulic unloading valve, and one axial end of the spring is fixed at three positions of the oil liquid port, and the other axial end of the spring is connected with the cone valve.
4. The split-type integrated gear motor according to claim 1, wherein the two-position two-way electromagnetic valve can control starting and stopping of the motor by controlling on-off of the oil inlet channel I and the oil inlet cavity, when the two-position two-way electromagnetic valve is electrified, the oil inlet channel I is communicated with the oil inlet cavity, hydraulic oil enters the oil inlet cavity to drive a gear of the motor to rotate, and when the two-position two-way electromagnetic valve is normally open, the oil inlet channel I is disconnected with the oil inlet cavity, and the gear of the motor stops rotating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311316378.8A CN117307551A (en) | 2023-10-12 | 2023-10-12 | Split-flow type integrated gear motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311316378.8A CN117307551A (en) | 2023-10-12 | 2023-10-12 | Split-flow type integrated gear motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117307551A true CN117307551A (en) | 2023-12-29 |
Family
ID=89286306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311316378.8A Pending CN117307551A (en) | 2023-10-12 | 2023-10-12 | Split-flow type integrated gear motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117307551A (en) |
-
2023
- 2023-10-12 CN CN202311316378.8A patent/CN117307551A/en active Pending
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