CN216665882U - Gear pump test oil way with oil suction port capable of automatically supplementing oil - Google Patents
Gear pump test oil way with oil suction port capable of automatically supplementing oil Download PDFInfo
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- CN216665882U CN216665882U CN202123389227.4U CN202123389227U CN216665882U CN 216665882 U CN216665882 U CN 216665882U CN 202123389227 U CN202123389227 U CN 202123389227U CN 216665882 U CN216665882 U CN 216665882U
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Abstract
The utility model relates to a gear pump test oil way with an oil suction port for automatically supplementing oil, which comprises a tested gear pump and a motor, wherein the input end of the tested gear pump is communicated with an oil inlet box through an oil suction pipeline, the output end of the tested gear pump is communicated with an oil return box through a loading pipeline, the oil return box is communicated with the oil inlet box through an oil adjusting pipeline, and the oil inlet box is communicated with the input end of an oil suction pipe and an exhaust pipeline. The utility model has simple structure and small occupied space; the main oil tank and the auxiliary oil tank are arranged on the upper portion, filling of hydraulic oil of the oil suction pipe is facilitated, the hydraulic pump test oil circuit is different from a traditional gear pump test oil circuit in that a vacuum oil suction pump is used for helping hydraulic oil to be filled quickly, and a pneumatic exhaust ball valve is used for ensuring that all gas in the oil suction pipe is discharged, so that batch testing of the gear pump with high precision and high requirements is achieved.
Description
Technical Field
The utility model belongs to the technical field of gear pumps, and relates to a gear pump test oil way with an oil suction port capable of automatically supplementing oil.
Background
At present, most gear pump test systems in domestic markets fill and exhaust hydraulic oil in an oil suction pipeline by means of self-suction capacity of a tested pump, the system has certain requirements on the self-suction capacity of the tested pump, and when the oil suction pipeline is too long, the tested pump runs for a long time under the condition that no hydraulic oil exists, and irreversible damage can be caused to the tested pump; a mode that an oil tank is arranged on the upper portion of the gear pump test system is adopted, hydraulic oil is filled into an oil suction pipeline through height difference, however, the filling speed is slow, the efficiency is low, air bubbles are easy to appear during filling, the gear pump in operation is affected, and the gear pump test system is not suitable for high-precision gear pump testing and high-efficiency flow line production.
Disclosure of Invention
The utility model aims to provide a gear pump test oil way with an oil suction port capable of automatically supplementing oil, which can solve the problems of slow filling speed, low efficiency, easy bubble generation during filling and influence on a running gear pump, and can realize batch test of the gear pump with high precision and high requirements.
According to the technical scheme provided by the utility model: a gear pump test oil way with an oil suction port for automatically supplementing oil comprises a tested gear pump and a motor, wherein the input end of the tested gear pump is communicated with an oil inlet box through an oil suction pipeline, the output end of the tested gear pump is communicated with an oil return box through a loading pipeline, the oil return box is communicated with the oil inlet box through an oil adjusting pipeline, the oil inlet box is communicated with the input end of an oil suction pipe and an exhaust pipeline, and the output end of the oil suction pipe and the exhaust pipeline is communicated with the oil return box; the output shaft of the motor is connected with the end of the gear pump to be tested through a torque meter; the oil suction pipeline comprises an oil suction filter, the input end of the oil suction filter is communicated with the oil inlet tank, the output end of the oil suction filter is respectively communicated with the input end of the safety valve, the input end of the gear pump to be tested and the input end of the oil suction pipeline exhaust pipeline through oil pipes, and the output end of the safety valve is connected with the oil inlet tank; the upper part of the oil pipe is communicated with the input end of an exhaust pipeline of the oil suction pipe.
As a further improvement of the utility model, the loading pipeline comprises a loading one-way valve, the output end of the loading one-way valve is respectively connected with the input end of a loading high-pressure oil filter and the input end of a loading safety valve through a tee joint, the output end of the loading high-pressure oil filter is connected with the input end of a loading flowmeter, the output end of the loading flowmeter is connected with the input end of a loading pneumatic three-way ball valve, two output ends of the loading pneumatic three-way ball valve are respectively connected with an oil return tank and the input end of the loading valve, the output end of the loading valve is connected with the oil return tank, and the output end of the loading safety valve is connected with the oil return tank.
As a further improvement of the utility model, the oil suction pipe exhaust pipeline comprises a pneumatic ball valve, and the input end of the pneumatic ball valve is the input end of the oil suction pipe exhaust pipeline and is communicated with the upper part of the oil pipe; the output end of the pneumatic ball valve is communicated with the input end of an exhaust pump, and the output end of the exhaust pump is the output end of an oil suction pipe exhaust pipeline and is communicated with an oil return tank.
As a further improvement of the utility model, the oil regulating pipeline comprises an oil regulating pump, the input end of the oil regulating pump is connected with the auxiliary oil tank, the output end of the oil regulating pump is connected with the input end of an oil regulating one-way valve, the output end of the oil regulating one-way valve is connected with the output end of the oil cooler, the input end of the oil cooler is connected with the input end of the filter, and the output end of the filter is connected with the oil inlet tank.
As a further improvement of the utility model, a one-way valve, a primary filter and a secondary filter are arranged on an oil way of the loading pipeline communicated with the oil return tank, the input end of the one-way valve is respectively communicated with one output end of the loading pneumatic three-way ball valve, the output end of the loading valve and the output end of the loading safety valve, the output end of the one-way valve is communicated with the output end of the primary filter, the output end of the primary filter is communicated with the input end of the secondary filter, and the output end of the secondary filter is communicated with the oil return tank.
As a further improvement of the utility model, an oil filtering pipeline is arranged in the oil tank, the oil filtering pipeline comprises an oil filtering pump, the input end of the oil filtering pump is connected with the auxiliary oil tank, the output end of the oil filtering pump is connected with the input end of an oil filtering one-way valve, the output end of the oil filtering one-way valve is connected with the input end of an oil filtering primary filter, the output end of the oil filtering primary filter is connected with the input end of an oil filtering secondary filter, and the output end of the oil filtering secondary filter is connected with the auxiliary oil tank.
As a further improvement of the utility model, the gear pump to be tested is placed on a testing station, an oil collecting hole is arranged on the testing station and used for collecting oil liquid which is scattered when the gear pump to be tested is assembled and disassembled, and the oil collecting hole is communicated with an oil return tank through an oil collecting pipeline; the collection oil pipe way includes sump oil tank and collection oil pump, and the sump oil tank is located the oil trap below, and collection oil pump input end links to each other with the pneumatic tee bend ball valve input of collection oil, and two outputs of the pneumatic tee bend ball valve of collection oil link to each other with oil trap and collection oil filter respectively, and collection oil filter installs in the sump oil tank, and collection oil pump output end links to each other with the filter input that produces oil, and the filter output that produces oil links to each other with an album oil check valve input, an album oil check valve output intercommunication check valve input.
As a further improvement of the utility model, the exhaust pipeline of the oil suction pipe is communicated with the oil return tank through an oil collection pipeline. The output end of the exhaust pump is communicated with the oil collecting tank.
As a further improvement of the utility model, a heater and an oil inlet box temperature sensor are arranged in the oil inlet box, and an oil return box temperature sensor and an oil return box heater are arranged in the oil return box.
As a further improvement of the utility model, an oil inlet tank liquid level meter is arranged in the oil inlet tank, and an oil return tank liquid level meter is arranged in the oil return tank.
The positive progress effect of this application lies in:
the utility model has simple structure and small occupied space; the main oil tank and the auxiliary oil tank are arranged on the upper portion, filling of hydraulic oil of the oil suction pipe is facilitated, the oil pump test oil way is different from a traditional gear pump test oil way in that a vacuum oil suction pump is used for helping hydraulic oil to be filled quickly, a pneumatic exhaust ball valve is used for ensuring that all gas in the oil suction pipe is discharged, and batch testing of the gear pump with high precision and high requirements is achieved.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
In order to make those skilled in the art better understand the technical solution of the present invention, the technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances in order to facilitate the description of the embodiments of the utility model herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover such processes, methods, systems, articles, or apparatus that comprise a list of steps or elements, are not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such processes, methods, articles, or apparatus.
In the figure 1, the device comprises a heater 2, an oil inlet tank liquid level meter 3, an oil inlet tank temperature sensor 4, an oil absorption filter 5, an oil inlet pressure sensor 6, a motor 8, a torquemeter 9, an oil outlet pressure sensor 11, a loading one-way valve 12, a loading high-pressure oil filter 13, a safety valve 14, a loading safety valve 16, a loading valve 18, a pneumatic ball valve 19, an air exhaust pump 20, an oil collection tank 21, an oil collection tank liquid level meter 22, an oil collection filter 23, an oil collection pneumatic three-way ball valve 24, an oil collection pump 25, an oil outlet filter 26, an oil collection one-way valve 27, an oil collection tray 28, a one-way valve 29, a primary filter 30, a secondary filter 31, a return oil tank liquid level meter 32, a return oil tank temperature sensor 33, a return tank heater 34, an oil liquid filter pump 36, an oil filtering one-way valve 37, an oil filtering primary filter 38, an oil filtering secondary filter 39, an oil adjusting pump 40, an oil adjusting one-way valve 41 and an oil cooler 42, The device comprises a filter 43, a tested gear pump I, a loading pipeline II, an oil collecting pipeline III, an oil suction pipe exhaust pipeline IV, an oil suction pipeline V, an oil adjusting pipeline VI, an oil liquid filtering pipeline XII, an oil inlet box IX, an oil return box X and the like.
As shown in figure 1, the utility model relates to a gear pump test oil way with an oil suction port capable of automatically supplementing oil, which comprises a tested gear pump I and a motor 8, wherein the input end of the tested gear pump I is communicated with an oil inlet box IX through an oil suction pipeline V, the output end of the tested gear pump I is communicated with an oil return box X through a loading pipeline II, the oil return box X is communicated with the oil inlet box IX through an oil regulation pipeline VI, the oil inlet box IX is communicated with the input end of an oil suction pipe exhaust pipeline IV, and the output end of the oil suction pipe exhaust pipeline IV is communicated with the oil return box X. The output shaft of the motor 8 is connected with the end of the I end of the gear pump to be tested through the torque meter 9. The oil suction pipeline V comprises an oil suction filter 5, the input end of the oil suction filter 5 is communicated with an oil inlet box IX, the output end of the oil suction filter 5 is respectively communicated with the input end of a safety valve 14, the input end of a gear pump I to be tested and the input end of an oil suction pipe exhaust pipeline IV through an oil pipe 1, and the output end of the safety valve 14 is connected with the oil inlet box IX. The upper part of the oil pipe 1 is communicated with the input end of an exhaust pipeline IV of the oil suction pipe.
The loading pipeline II comprises a loading one-way valve 12, the output end of the loading one-way valve 12 is respectively connected with the input end of a loading high-pressure oil filter 13 and the input end of a loading safety valve 16 through a tee joint, the output end of the loading high-pressure oil filter 13 is connected with the input end of a loading flowmeter 15, the output end of the loading flowmeter 15 is connected with the input end of a loading pneumatic tee joint ball valve 17, two output ends of the loading pneumatic tee joint ball valve 17 are respectively connected with the input ends of an oil return tank X and a loading valve 18, the output end of the loading valve 18 is connected with the oil return tank X, and the output end of the loading safety valve 16 is connected with the oil return tank X.
The oil suction pipe exhaust pipeline IV comprises a pneumatic ball valve 19, and the input end of the pneumatic ball valve 19 is the input end of the oil suction pipe exhaust pipeline IV and is communicated with the upper part of the oil pipe 1; the output end of the pneumatic ball valve 19 is communicated with the input end of an exhaust pump 20, and the output end of the exhaust pump 20 is the output end of an oil suction pipe exhaust pipeline IV and is communicated with an oil return box X.
The oil regulating pipeline VI comprises an oil regulating pump 40, the input end of the oil regulating pump 40 is connected with the auxiliary oil tank X, the output end of the oil regulating pump 40 is connected with the input end of an oil regulating one-way valve 41, the output end of the oil regulating one-way valve 41 is connected with the output end of an oil cooler 42, the input end of the oil cooler 42 is connected with the input end of a filter 43, and the output end of the filter 43 is connected with an oil inlet tank IX.
The motor 8 is a variable frequency motor, and can quickly adjust various working conditions.
In order to keep the purity of the return oil and prevent the backflow of the oil. A check valve 29, a primary filter 30 and a secondary filter 31 are installed on an oil way of a loading pipeline II communicated with an oil return tank X, the input end of the check valve 29 is respectively communicated with one output end of a loading pneumatic three-way ball valve 17, the output end of a loading valve 18 and the output end of a loading safety valve 16, the output end of the check valve 29 is communicated with the output end of the primary filter 30, the output end of the primary filter 30 is communicated with the input end of the secondary filter 31, and the output end of the secondary filter 31 is communicated with the oil return tank X.
In order to provide the oil quality in the oil return box X, set up fluid filter line XII in oil tank X, fluid filter line XII includes fluid filter pump 36, fluid filter pump 36 input links to each other with bellytank X, fluid filter pump 36 output links to each other with fluid filter check valve 37 input, fluid filters check valve 37 output and fluid and filters 38 inputs continuous of primary filter, fluid filters 38 output and fluid and filters 39 inputs continuous of secondary filter, fluid filters 39 outputs of secondary filter and links to each other with bellytank X.
The gear pump I to be tested is placed on the testing station, an oil collecting hole is formed in the testing station and used for collecting oil liquid which is scattered when the gear pump I to be tested is disassembled and assembled, and the oil collecting hole is communicated with the oil return box X through an oil collecting pipeline III.
The oil collecting pipeline III comprises an oil collecting tank 21 and an oil collecting pump 25, the oil collecting tank 21 is positioned below an oil collecting hole, the input end of the oil collecting pump 25 is connected with the input end of an oil collecting pneumatic three-way ball valve 24, two output ends of the oil collecting pneumatic three-way ball valve 24 are respectively connected with an oil collecting disc 28 and an oil collecting filter 23, the oil collecting filter 23 is installed in the oil collecting tank 21, the output end of the oil collecting pump 25 is connected with the input end of an oil outlet filter 26, the output end of the oil outlet filter 26 is connected with the input end of an oil collecting one-way valve 27, and the output end of the oil collecting one-way valve 27 is communicated with the input end of a one-way valve 29.
And an oil suction pipe exhaust pipeline IV is communicated with an oil return box X through an oil collecting pipeline III. The output end of the exhaust pump 20 is communicated with an oil collecting tank 21.
In order to control the temperature of the oil, a heater 2 and an inlet tank temperature sensor 4 are installed in an inlet tank ix, and a return tank temperature sensor 33 and a return tank heater 34 are installed in a return tank x.
In order to monitor the height of the oil, an inlet tank level gauge 3 is installed in an inlet tank ix, a return tank level gauge 32 is installed in a return tank x, and the oil is collected in an oil collection tank 21.
In order to monitor the pressure condition in the oil circuit in real time, an oil inlet pressure sensor 6 is installed on the oil pipe 1, and an oil outlet pressure sensor 11 is installed on a pipeline of an oil inlet box IX output end communicated with a loading pipeline II.
The oil inlet pressure sensor 6 is positioned above the input end of the oil pipe 1 communicated with the exhaust pipeline IV of the oil suction pipe.
The specific principle of the utility model is as follows:
the specific operation mode of the utility model is as follows:
the gear pump I to be tested is installed on a testing station, the input end of the pump 10 to be tested is connected with the output end of the oil suction pipeline V through an oil pipe, and the output end of the pump is connected with the input end of the loading pipeline II to form a complete testing pipeline.
Before the test is started, the pneumatic ball valve 19 is opened, the oil suction pipe exhaust pipeline IV is started, the exhaust pump 20 helps the oil suction pipeline V to suck oil from the upper oil inlet box IX, the oil suction pipe exhaust pipeline IV is closed after the air exhaust is confirmed through the transparent observation pipe on the oil suction pipe exhaust pipeline IV, and the exhaust process of the oil suction pipeline V is completed.
During testing, the motor 8 is started firstly, the tested pump 10 is driven to operate through the torque meter 9 and the tested gear pump I, the tested pump 10 absorbs oil from the oil inlet box IX through the oil absorption pipeline V, and oil is supplied to the loading pipeline II.
The loading pipeline II measures the flow of the gear pump by using a loading flowmeter 15; the line peak pressure is controlled using the loading relief valve 16; the loading pneumatic three-way ball valve 17 is controlled to control whether the oil way runs in no-load mode or the loading valve 18 is used for pressurization test; the pressure of the line is detected using the discharge pressure sensor 11.
And the oil collecting pipeline III collects the hydraulic oil leaked in the gear pump I to be tested by using the oil collecting tank 21, and the hydraulic oil in the oil collecting tank 21 is filtered by using the oil collecting pump 25 through three filters 26, 30 and 31 and then is pumped into the auxiliary oil tank to finish the collection of the redundant hydraulic oil.
The oil liquid filtering pipeline VIII is divided into an internal circulation pipeline and an external circulation pipeline; an oil liquid filter pump 36 for internal circulation is used for pumping oil from the auxiliary oil tank, and the oil is filtered by two filters 38 and 39 and returns to the auxiliary oil tank; the oil regulating pump 40 for external circulation use pumps oil from the auxiliary oil tank, and the oil enters the oil inlet box IX after passing through the water cooling machine 42 and the filter 43; the hydraulic oil of the oil inlet box IX is guaranteed to be hydraulic oil subjected to three-stage filtration through internal and external double circulation, and the oil temperature of the oil inlet box IX can be effectively controlled by matching the water cooling machine 42 with the heater 2 in the oil inlet box IX and the oil return box heater 34.
The oil inlet box IX and the auxiliary oil box X are integrated into an oil box 1, a partition plate is arranged in the middle of the oil box to divide the oil box into two parts, the oil inlet box IX and the auxiliary oil box are divided into a main oil box and an auxiliary oil box, the main oil box and the auxiliary oil box are not communicated with each other, an oil filtering pipeline VIII is used for oil exchange, an oil inlet box liquid level meter 3, an oil inlet box temperature sensor 4, an oil return box liquid level meter 32 and an oil return box temperature sensor 33 are used for detecting oil temperature and liquid level, and the liquid level and the temperature of the oil box are controlled.
The parts form the whole gear pump test oil way with the oil suction port capable of exhausting air automatically, and batch test of the gear pump with high precision and high requirements is realized.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the utility model, and these modifications and improvements are also considered to be within the scope of the utility model.
Claims (10)
1. The gear pump test oil way is characterized by comprising a gear pump (I) to be tested and a motor (8), wherein the input end of the gear pump (I) to be tested is communicated with an oil inlet box (IX) through an oil suction pipeline (V), the output end of the gear pump (I) to be tested is communicated with an oil return box (X) through a loading pipeline (II), the oil return box (X) is communicated with an oil inlet box (IX) through an oil regulating pipeline (VI), the oil inlet box (IX) is communicated with the input end of an oil suction pipe exhaust pipeline (IV), and the output end of the oil suction pipe exhaust pipeline (IV) is communicated with the oil return box (X); an output shaft of the motor (8) is connected with the end of the gear pump (I) to be tested through a torque meter (9); the oil suction pipeline (V) comprises an oil suction filter (5), the input end of the oil suction filter (5) is communicated with the oil inlet box (IX), the output end of the oil suction filter (5) is respectively communicated with the input end of the safety valve (14), the input end of the gear pump (I) to be tested and the input end of the oil suction pipe exhaust pipeline (IV) through an oil pipe (1), and the output end of the safety valve (14) is connected with the oil inlet box (IX); the upper part of the oil pipe (1) is communicated with the input end of an oil suction pipe exhaust pipeline (IV).
2. The gear pump test oil way for automatically supplementing oil to an oil suction port according to claim 1, wherein the loading pipeline (II) comprises a loading one-way valve (12), the output end of the loading one-way valve (12) is respectively connected with the input end of a loading high-pressure oil filter (13) and the input end of a loading safety valve (16) through a tee joint, the output end of the loading high-pressure oil filter (13) is connected with the input end of a loading flowmeter (15), the output end of the loading flowmeter (15) is connected with the input end of a loading pneumatic tee-joint ball valve (17), two output ends of the loading pneumatic tee-joint ball valve (17) are respectively connected with the input ends of an oil return tank (X) and a loading valve (18), the output end of the loading valve (18) is connected with the oil return tank (X), and the output end of the loading safety valve (16) is connected with the oil return tank (X).
3. The gear pump test oil way for automatically supplementing oil to the oil suction port according to claim 1, wherein the oil suction pipe exhaust pipeline (IV) comprises a pneumatic ball valve (19), and the input end of the pneumatic ball valve (19) is the input end of the oil suction pipe exhaust pipeline (IV) and is communicated with the upper part of the oil pipe (1); the output end of the pneumatic ball valve (19) is communicated with the input end of an exhaust pump (20), and the output end of the exhaust pump (20) is the output end of an oil suction pipe exhaust pipeline (IV) and is communicated with an oil return box (X).
4. The gear pump test oil way for automatic oil supply of an oil suction port according to claim 1, wherein the oil regulating pipeline (VI) comprises an oil regulating pump (40), the input end of the oil regulating pump (40) is connected with the auxiliary oil tank (X), the output end of the oil regulating pump (40) is connected with the input end of an oil regulating one-way valve (41), the output end of the oil regulating one-way valve (41) is connected with the output end of the oil cooler (42), the input end of the oil cooler (42) is connected with the input end of a filter (43), and the output end of the filter (43) is connected with the oil inlet tank (IX).
5. The gear pump test oil circuit for automatically replenishing oil to an oil suction port according to claim 1, wherein a check valve (29), a first-stage filter (30) and a second-stage filter (31) are installed on an oil circuit of the loading pipeline (II) communicated with the oil return tank (X), the input end of the check valve (29) is respectively communicated with one output end of a loading pneumatic three-way ball valve (17), the output end of a loading valve (18) and the output end of a loading safety valve (16), the output end of the check valve (29) is communicated with the output end of the first-stage filter (30), the output end of the first-stage filter (30) is communicated with the input end of the second-stage filter (31), and the output end of the second-stage filter (31) is communicated with the oil return tank (X).
6. The experimental oil circuit of gear pump of automatic oil supply of oil absorption opening of claim 1, characterized in that, set up fluid in oil tank (X) and filter pipeline (XII), fluid filters pipeline (XII) and includes fluid filtration pump (36), fluid filtration pump (36) input links to each other with bellytank (X), fluid filtration pump (36) output links to each other with fluid filtration check valve (37) input, fluid filters check valve (37) output and links to each other with fluid filtration primary filter (38) input, fluid filters primary filter (38) output and links to each other with fluid filtration secondary filter (39) input, fluid filters secondary filter (39) output and links to each other with bellytank (X).
7. The gear pump test oil way with the automatic oil supplementing function at the oil suction opening according to claim 1, characterized in that the gear pump (I) to be tested is placed on a test station, an oil collecting hole is formed in the test station and used for collecting oil liquid scattered when the gear pump (I) to be tested is assembled and disassembled, and the oil collecting hole is communicated with an oil return tank (X) through an oil collecting pipeline (III); oil collecting pipeline (III) includes sump oil tank (21) and oil collecting pump (25), sump oil tank (21) are located the oil gathering hole below, oil collecting pump (25) input links to each other with pneumatic tee bend ball valve (24) input of collection oil, two outputs of pneumatic tee bend ball valve (24) of collection oil link to each other with oil catch tray (28) and oil collecting filter (23) respectively, install in sump oil tank (21) oil collecting filter (23), oil collecting pump (25) output links to each other with oil outlet filter (26) input, oil outlet filter (26) output links to each other with oil collecting check valve (27) input, oil collecting check valve (27) output intercommunication check valve (29) input.
8. The gear pump test oil way for automatically supplementing oil to the oil suction opening according to claim 7, characterized in that an exhaust pipeline (IV) of the oil suction pipe is communicated with an oil return tank (X) through an oil collecting pipeline (III), and an output end of the exhaust pump (20) is communicated with an oil collecting tank (21).
9. The gear pump test oil circuit for automatically supplementing oil to an oil suction port according to claim 1, wherein a heater (2) and an oil inlet tank temperature sensor (4) are installed in an oil inlet tank (ix), and an oil return tank temperature sensor (33) and an oil return tank heater (34) are installed in an oil return tank (x).
10. The gear pump test oil circuit for automatically supplementing oil to an oil suction port according to claim 1, wherein an oil inlet tank level gauge (3) is installed in the oil inlet tank (ix), and an oil return tank level gauge (32) is installed in the oil return tank (x).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123389227.4U CN216665882U (en) | 2021-12-29 | 2021-12-29 | Gear pump test oil way with oil suction port capable of automatically supplementing oil |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123389227.4U CN216665882U (en) | 2021-12-29 | 2021-12-29 | Gear pump test oil way with oil suction port capable of automatically supplementing oil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216665882U true CN216665882U (en) | 2022-06-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123389227.4U Active CN216665882U (en) | 2021-12-29 | 2021-12-29 | Gear pump test oil way with oil suction port capable of automatically supplementing oil |
Country Status (1)
| Country | Link |
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| CN (1) | CN216665882U (en) |
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2021
- 2021-12-29 CN CN202123389227.4U patent/CN216665882U/en active Active
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