CN215980247U - Pressure detection device of hydraulic pump - Google Patents
Pressure detection device of hydraulic pump Download PDFInfo
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- CN215980247U CN215980247U CN202121707055.8U CN202121707055U CN215980247U CN 215980247 U CN215980247 U CN 215980247U CN 202121707055 U CN202121707055 U CN 202121707055U CN 215980247 U CN215980247 U CN 215980247U
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- valve seat
- pressure measuring
- inner pipeline
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Abstract
The utility model discloses a pressure detection device of a hydraulic pump, which is used for detecting whether the hydraulic pump has faults or not, wherein the inlet and the outlet of the hydraulic pump are respectively connected with an oil tank through pipelines and comprise a pressure measuring valve seat, the pressure measuring valve seat is movably connected between the outlet of the hydraulic pump and the oil tank, an inner pipeline is arranged in the pressure measuring valve seat, an overflow valve is arranged on the inner pipeline, the length of the inner pipeline is smaller than that of the pressure measuring valve seat, one end of the inner pipeline is communicated with the hydraulic pump, and a gap is formed between the other end of the inner pipeline and the outlet end of the pressure measuring valve seat; the pressure measuring valve seat is provided with a pressure measuring element, and the overflow valve is provided with a pressure adjusting element for adjusting the opening degree of the overflow valve. The hydraulic pump is movably connected with the hydraulic pump, when the hydraulic pipeline of the numerical control machine tool has a pressure deficiency fault, the pressure of the hydraulic pump can be visually and accurately measured, so that whether the pressure deficiency fault is the reason of the hydraulic pump can be quickly and conveniently judged; the maintenance time can be shortened, the machine tool stopping time is reduced, and the economic loss caused by stopping is reduced.
Description
Technical Field
The utility model belongs to the technical field of fault detection, and relates to a pressure detection device of a hydraulic pump.
Background
At present, various numerical control milling and boring machines are widely applied to the metal processing industry to realize the rough, semi-fine and fine processing of various high-precision parts with complicated structures such as casting, forging, welding and the like, and the machine tool has the functions of milling, boring, drilling, reaming, tapping, reaming, spot facing and the like; various accessory milling heads and rotary working tables are arranged, so that the workpiece is clamped once, machined on multiple surfaces, and multipurpose by one machine; the method has the advantages of saving process equipment, shortening the production preparation period, improving the working efficiency, reducing the production cost and the like, and obtains good economic benefit.
Although the advantage that digit control machine tool brought is more, when the maintenance digit control machine tool hydraulic line appears the not enough trouble of pressure, can't judge whether be the reason of pump, the maintenance is difficult. When the condition occurs, the fault is not easy to be inaccurate, time and labor are wasted, the maintenance cost is increased more easily, and the production progress is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a pressure detection device of a hydraulic pump, which solves the problem that the fault of insufficient pressure cannot be judged in the prior art.
The technical scheme adopted by the utility model is that the hydraulic pump pressure detection device is used for detecting whether a hydraulic pump has a fault or not, the inlet and the outlet of the hydraulic pump are respectively connected with an oil tank through pipelines and comprise pressure measuring valve seats, the pressure measuring valve seats are movably connected between the outlet of the hydraulic pump and the oil tank, inner pipelines are arranged in the pressure measuring valve seats, overflow valves are arranged on the inner pipelines, the length of the inner pipelines is smaller than that of the pressure measuring valve seats, one end of each inner pipeline is communicated with the hydraulic pump, and a gap is formed between the other end of each inner pipeline and the outlet end of each pressure measuring valve seat; the pressure measuring valve seat is provided with a pressure measuring element, and the overflow valve is provided with a pressure adjusting element for adjusting the opening degree of the overflow valve.
The utility model is also characterized in that:
the outlet end of the pressure measuring valve seat is connected with an oil return rubber hose.
One end of the inner pipeline is connected with a first joint, a first sealing ring is arranged between the inner pipeline and the first joint, and the first joint is connected with an outlet of the hydraulic pump through a first rubber hose.
The outlet end of the pressure measuring valve seat is connected with a second joint, a second sealing ring is arranged between the pressure measuring valve seat and the second joint, and the second joint is connected with an oil return rubber hose.
The first rubber hose is movably connected with the hydraulic pump through a connecting piece.
The utility model has the beneficial effects that:
the pressure detection device of the hydraulic pump is movably connected with the hydraulic pump, and when the hydraulic pipeline of the numerical control machine tool has a pressure deficiency fault, the pressure of the hydraulic pump can be intuitively and accurately detected, so that whether the pressure deficiency fault is the reason of the hydraulic pump or not can be quickly and conveniently judged; the maintenance time can be shortened, the machine tool stopping time is reduced, and the economic loss caused by stopping is reduced.
Drawings
FIG. 1 is a schematic structural diagram of a hydraulic pump pressure detection device according to the present invention;
fig. 2 is a left side view of a hydraulic pump pressure detecting apparatus of the present invention;
FIG. 3 is a top view of a hydraulic pump pressure sensing device of the present invention;
FIG. 4 is a front view of pressure measurement of an actual working condition of the hydraulic pump pressure detecting device according to the present invention;
fig. 5 is a side view of a pressure measuring device for measuring the actual working condition of a hydraulic pump according to the present invention.
In the figure: 1. the hydraulic pump, 2, an oil tank, 3, a pressure measuring valve seat, 4, an inner pipeline, 5, a pressure measuring element, 6, an overflow valve, 7, a pressure adjusting element, 8, a first joint, 9, a first rubber hose, 10, an oil return rubber hose, 11, a second rubber hose, 12, a first sealing ring, 13, a second joint and 14, a second sealing ring.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
A hydraulic pump pressure detection device is used for judging whether the cause of a pressure deficiency fault in a hydraulic system is a hydraulic pump fault, as shown in figure 1-3, the hydraulic system comprises a hydraulic pump 1 and an oil tank 2, the inlet and the outlet of the hydraulic pump 1 are respectively connected with the oil tank 2 through pipelines, the hydraulic pump comprises a pressure measuring valve seat 3, the pressure measuring valve seat 3 is movably connected between the outlet of the hydraulic pump 1 and the oil tank 2, an inner pipeline 4 is arranged in the pressure measuring valve seat 3, an overflow valve 6 is arranged on the inner pipeline 4, the length of the inner pipeline 4 is smaller than that of the pressure measuring valve seat 3, one end of the inner pipeline 4 is communicated with the hydraulic pump 1, a gap is formed between the other end of the inner pipeline 4 and the outlet end of the pressure measuring valve seat 3, an oil return rubber hose 10 is connected with the oil tank 2, oil flowing out of the inner pipeline 4 enters the pressure measuring valve seat 3 to flow back and then enters the oil tank 2; the pressure measuring valve seat 3 is provided with a pressure measuring element 5 for detecting the pressure in the pressure measuring valve seat 3, and the pressure measuring element can be a pressure gauge. The relief valve 6 is provided with a pressure adjusting element 7 for adjusting the opening of the relief valve 6.
One end of the inner pipeline 4 is connected with a first joint 8, a first sealing ring 12 is arranged between the inner pipeline 4 and the first joint 8, and the first joint 8 is connected with an outlet of the hydraulic pump 1 through a first rubber hose 9. The outlet end of the pressure measuring valve seat 3 is connected with a second joint 13, a second sealing ring 14 is arranged between the pressure measuring valve seat 3 and the second joint 13, and the second joint 13 is connected with the oil return rubber hose 10. The inlet end of the hydraulic pump 1 is communicated with the oil tank 2 through the second rubber hose 11, the outlet end of the hydraulic pump 1 is movably connected with the first rubber hose 9 through a connecting piece, the hydraulic pump is convenient to detach, and the connecting piece can be a movable joint.
The working principle of the hydraulic pump pressure detection device is as follows:
during detection, as shown in fig. 4-5, firstly, an oil outlet of the hydraulic pump 1 and the first rubber hose 9 are connected through a connecting joint, meanwhile, the second rubber hose 11 and the oil return rubber hose 10 are placed in the oil tank 2, then, the pressure regulating element 7 is rotated anticlockwise until the pressure regulating element 7 cannot rotate, at the moment, the overflow valve 6 is in an overflow open state, and oil enters the overflow valve 6 from the inner pipeline 4; starting a motor of the hydraulic pump 1, rotating the pressure regulating element 7 clockwise at a low speed, observing the reading of the pressure measuring element 5 until the pressure regulating element 7 cannot rotate, wherein the overflow valve 6 is in a closed state, oil enters the pressure measuring valve seat 3 from the overflow valve 6, because the working pressure of the hydraulic pump 1 is equal to the pressure at the pump outlet, namely the overflow pressure, when the overflow valve 6 is closed, namely the overflow pressure is zero, the working pressure of the hydraulic pump is equal to the pressure at the pump outlet, and is also the hydraulic maximum pressure, the numerical value of the pressure measuring element 5 at the moment is the maximum pressure of the hydraulic pump 1, and if the numerical value does not reach the maximum pressure of the hydraulic pump 1, judging that the pressure deficiency in the hydraulic system is the fault of the hydraulic pump 1.
Through the mode, the hydraulic pump pressure detection device is movably connected with the hydraulic pump, and when the hydraulic pipeline of the numerical control machine tool has the pressure deficiency fault, the pressure of the hydraulic pump can be intuitively and accurately measured, so that whether the pressure deficiency fault is the reason of the hydraulic pump or not can be quickly and conveniently judged; the maintenance time can be shortened, the machine tool stopping time is reduced, and the economic loss caused by stopping is reduced.
Claims (5)
1. A pressure detection device of a hydraulic pump is used for detecting whether the hydraulic pump (1) has a fault, the inlet and the outlet of the hydraulic pump (1) are respectively connected with an oil tank (2) through pipelines, and the pressure detection device is characterized by comprising a pressure detection valve seat (3), wherein the pressure detection valve seat (3) is movably connected between the outlet of the hydraulic pump (1) and the oil tank (2), an inner pipeline (4) is arranged in the pressure detection valve seat (3), an overflow valve (6) is arranged on the inner pipeline (4), the length of the inner pipeline (4) is smaller than that of the pressure detection valve seat (3), one end of the inner pipeline (4) is communicated with the hydraulic pump (1), and a gap exists between the other end of the inner pipeline (4) and the outlet end of the pressure detection valve seat (3); the pressure measuring valve is characterized in that a pressure measuring element (5) is arranged on the pressure measuring valve seat (3), and a pressure adjusting element (7) used for adjusting the opening degree of the overflow valve (6) is arranged on the overflow valve (6).
2. The pressure detection device of the hydraulic pump according to claim 1, characterized in that an oil return rubber hose (10) is connected to the outlet end of the pressure measuring valve seat (3).
3. The pressure detection device of the hydraulic pump according to claim 2, characterized in that a first joint (8) is connected to one end of the inner pipeline (4), a first sealing ring (12) is arranged between the inner pipeline (4) and the first joint (8), and the first joint (8) is connected with an outlet of the hydraulic pump (1) through a first rubber hose (9).
4. The pressure detection device of the hydraulic pump according to claim 2, characterized in that a second joint (13) is connected to the outlet end of the pressure measuring valve seat (3), a second sealing ring (14) is arranged between the pressure measuring valve seat (3) and the second joint (13), and the second joint (13) is connected with the oil return rubber hose (10).
5. A hydraulic pump pressure sensing arrangement according to claim 3, characterized in that the first rubber hose (9) is movably connected to the hydraulic pump (1) by means of a connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121707055.8U CN215980247U (en) | 2021-07-26 | 2021-07-26 | Pressure detection device of hydraulic pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121707055.8U CN215980247U (en) | 2021-07-26 | 2021-07-26 | Pressure detection device of hydraulic pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215980247U true CN215980247U (en) | 2022-03-08 |
Family
ID=80576409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121707055.8U Active CN215980247U (en) | 2021-07-26 | 2021-07-26 | Pressure detection device of hydraulic pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215980247U (en) |
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2021
- 2021-07-26 CN CN202121707055.8U patent/CN215980247U/en active Active
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