Hydraulic output power tester

Abstract

The utility model provides a hydraulic output power tester which comprises a gear pump, a multi-way valve and a plurality of pipelines, and one end of the gear pump is connected with the multi-way valve through the pipelines. The hydraulic output power tester further comprises an oil inlet connector and an oil return connector, one end of the oil inlet connector and one end of the oil return connector are communicated with the multi-way valve, and the other end of the oil inlet connector and the other end of the oil return connector are communicated through a pipeline. The hydraulic output power tester further comprises a flow meter, a power meter and a pressure meter which are sequentially arranged, the flow meter, the power meter and the pressure meter are communicated through pipelines, one end of the pressure meter is communicated with one end of the oil return connector, and one end of the flow meter is communicated with one end of the oil inlet connector. According to the hydraulic output power tester with the structure, when various faults exist in a hydraulic system of agricultural machinery, specific fault points can be tested through the tester, the hydraulic output power tester is simple and practical in structure and low in use cost, and the fault points can be quickly and efficiently found.

Description

Technical Field

[0001] The utility model relates to the field of agricultural machinery testing, in particular to a hydraulic output power tester. Background Art

[0002] In recent years, with the continuous development of economy and technology, agricultural machinery of various structures, such as tractors, have been more and more widely used in agricultural production activities.

[0003] Tractors are usually equipped with hydraulic systems to provide hydraulic power for hydraulic parts. However, various faults usually occur during the use of hydraulic systems, such as oil circuit blockage, pipeline leakage, mismatch between gear pump and pipeline, etc. When a fault occurs, it is not only time-consuming and labor-intensive, but also extremely inefficient to manually find the fault point without the help of various detection equipment.

[0004] Therefore, how to provide a hydraulic output power tester that has a simple and practical structure, low use cost, and can more efficiently test the hydraulic system of agricultural machinery has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a hydraulic output power tester which has a simple and practical structure, low use cost and can test the hydraulic system of agricultural machinery more efficiently.

[0006] The solution of the utility model is implemented as follows: the utility model proposes a hydraulic output power tester, including a gear pump, a multi-way valve and a plurality of pipelines, one end of the gear pump is connected to the multi-way valve through the pipeline; the hydraulic output power tester also includes an oil inlet joint and an oil return joint, one end of the oil inlet joint and the oil return joint are respectively connected to the multi-way valve, and the other end of the oil inlet joint and the oil return joint are connected through the pipeline; the hydraulic output power tester also includes a flow meter, a power meter and a pressure gauge arranged in sequence, the flow meter, the power meter and the pressure gauge are connected through the pipeline, one end of the pressure gauge is connected to one end of the oil return joint, and one end of the flow meter is connected to one end of the oil inlet joint. The hydraulic output power tester of this structure can test the specific fault point when there are various faults in the hydraulic system of the agricultural machinery. It is not only simple and practical in structure, but also has low use cost, and can quickly and efficiently find the relevant fault point.

[0007] Another technical solution of the utility model is that on the basis of the above, a flow meter is further provided on the pipeline between the oil inlet joint and the oil return joint.

[0008] Another technical solution of the utility model is that on the basis of the above, a flow valve is further provided on the pipeline between the flow meter and the oil inlet joint.

[0009] Another technical solution of the utility model is that on the basis of the above, a pressure gauge is further provided on the pipeline between the pressure gauge and the oil return joint.

[0010] Another technical solution of the utility model is that on the basis of the above, the multi-way valve comprises a first multi-way valve, and a first operating rod is provided at one end of the first multi-way valve.

[0011] Another technical solution of the utility model is that on the basis of the above, the multi-way valve further includes a second multi-way valve, the second multi-way valve is arranged opposite to the first multi-way valve, and a second operating rod is provided at one end of the second multi-way valve.

[0012] Another technical solution of the utility model is that on the basis of the above, the first multi-way valve and the second multi-way valve are both provided with oil ports respectively connected with the oil inlet connector and the oil return puller.

[0013] Another technical solution of the utility model is that on the basis of the above, the first multi-way valve and the second multi-way valve are both three-position four-way reversing valves.

[0014] Another technical solution of the utility model is that on the basis of the above, the hydraulic output power tester also includes an oil tank, and the oil inlet end of the gear pump is arranged in the oil tank.

[0015] Another technical solution of the utility model is that on the basis of the above, the hydraulic output power tester also includes a filter, one end of the filter is connected to the gear pump, and the other end of the filter is connected to the oil tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.

[0017] Figure 1 The utility model is a hydraulic principle diagram of a hydraulic output power tester.

[0018] The corresponding relationship of the reference numerals is:

[0019] 1 Oil inlet connector 2 Flow valve 3 Flow meter

[0020] 4 Flow meter 5 Power meter 6 Pressure gauge

[0021] 7 Pressure gauge 8 Oil return connector 9 First multi-way valve

[0022] 10 oil tank 11 filter 12 gear pump

[0023] 13 first operating lever 14 second multi-way valve 15 second operating lever DETAILED DESCRIPTION

[0024] The present invention is described in detail below in conjunction with the accompanying drawings. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention. In addition, those skilled in the art can make corresponding combinations of the features in the embodiments and in different embodiments of the present invention according to the description of this document.

[0025] The utility model embodiments are as follows, see Figure 1 The hydraulic output power tester shown in the figure includes a gear pump 12, a multi-way valve and a plurality of pipelines. One end of the gear pump 12, namely the upper end shown in the figure, is connected to the multi-way valve through a pipeline. The hydraulic output power tester also includes an oil inlet joint 1 and an oil return joint 8. One end of the oil inlet joint 1 and the oil return joint 8, namely the right end shown in the figure, are connected to the multi-way valve through pipelines respectively, and the other end of the oil inlet joint 1 and the oil return joint 8, namely the left end shown in the figure, are connected together through pipelines. The hydraulic output power tester also includes a flow meter 4, a power meter 5 and a pressure gauge 6 arranged in sequence. The flow meter 4, the power meter 5 and the pressure gauge 6 are connected through pipelines. One end of the pressure gauge 6, namely the right end shown in the figure, is connected to one end of the oil return joint 8, namely its left end, and one end of the flow meter 4, namely the right end shown in the figure, is connected to one end of the oil inlet joint 1, namely its left end. The hydraulic output power tester of this structure can test the specific fault point when there are various faults in the hydraulic system of agricultural machinery. It is not only simple and practical in structure, but also has low cost of use, and can quickly and efficiently find the relevant fault points.

[0026] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, a flow meter 3 is also provided on the pipeline between the oil inlet joint 1 and the oil return joint 8. More specifically, the upper and lower ends of the flow meter 3 are respectively connected to the oil return joint 8 and the oil inlet joint 1, and one end of the flow meter 3 is connected to the flow meter 4.

[0027] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, a flow valve 2 is also provided on the pipeline between the flow meter 3 and the oil inlet connector 1. More specifically, the right end of the flow valve 2 is connected to the left end of the oil inlet connector 1, the left end of the flow valve 2 is connected to the flow meter 3, and the right end of the flow valve 2 is connected to the left end of the oil inlet connector 1. The flow valve 2 is used to adjust the size of the hydraulic flow, through which different hydraulic output powers are calculated.

[0028] Based on the above embodiment, in another embodiment of the utility model, as Figure 1As shown, a pressure gauge 7 is further provided on the pipeline between the pressure gauge 6 and the oil return joint 8, that is, the left end of the pressure gauge 7 is connected to the pressure gauge 6, and the right end of the pressure gauge 7 is connected to the left end of the oil return joint 8.

[0029] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, the way valve specifically includes a first multi-way valve 9. One end of the first multi-way valve 9, that is, the left end shown in the figure, is provided with a first operating rod 13, and the first operating rod 13 is specifically a manual operating rod.

[0030] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, the multi-way valve further includes a second multi-way valve 14, which is arranged opposite to the first multi-way valve 9, and one end of the second multi-way valve 14, i.e., the left end shown in the figure, is provided with a second operating rod 15. In addition, the second multi-way valve 14 has the same or similar structure as the first multi-way valve 9.

[0031] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, the first multi-way valve 9 and the second multi-way valve 14 are both provided with oil ports connected to the oil inlet connector 1 and the oil return puller. Specifically, the first multi-way valve 9 is provided with A2 and B2 oil ports, the second multi-way valve 14 is provided with A1 and B1 oil ports, 1 and B1 oil ports, and A2 and B2 oil ports are respectively used to connect to the oil inlet connector 1 and the oil return connector 8. In addition, the first multi-way valve 9 and the second multi-way valve 14 are also provided with a P oil port for oil inlet and a T oil port for oil return.

[0032] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, more specifically, the first multi-way valve 9 and the second multi-way valve 14 are both three-position four-way reversing valves. When reversing, the working positions of the first multi-way valve 9 and the second multi-way valve 14 can be selected by operating the first operating lever 13 and the second operating lever 15.

[0033] Based on the above embodiment, in another embodiment of the utility model, as Figure 1 As shown, the hydraulic output power tester also includes an oil tank 10 for containing hydraulic oil. The oil inlet end of the gear pump 12, that is, the lower end shown in the figure, is arranged in the oil tank 10. When the gear pump 12 rotates, the hydraulic oil in the oil tank 10 can be delivered to the first multi-way valve 9 or the second multi-way valve 14.

[0034] Based on the above embodiment, in another embodiment of the utility model, as Figure 1As shown, the hydraulic output power tester also includes a filter 11 for filtering the hydraulic oil. One end of the filter 11, namely the upper end shown in the figure, is connected to the gear pump 12, and the other end, namely the lower end shown in the figure, is connected to the oil tank 10.

[0035] The working principle of the above hydraulic output power tester is as follows:

[0036] After starting the tractor, the gear pump 12 starts working, and the hydraulic oil in the oil tank 10 enters the second multi-way valve 14 through the filter 11 and the P oil port, and then flows back to the oil tank 10 through the T oil port. The A1 oil port on the second multi-way valve 14 is connected to the oil inlet connector 1. When the second joystick 15 is pulled, the hydraulic oil passes through the flow valve 2 and the flow meter 3, and then passes through the return oil connector 8, and then flows back to the oil tank 10 through the T oil port after passing through the B1 oil port on the second multi-way valve 14. At this time, the flow meter 3 transmits data to the flow meter 4, and the pressure gauge 7 transmits data to the pressure gauge 6. The two sets of data are transmitted to the power meter 5 at the same time, and the hydraulic output power can be calculated.

[0037] The above is only a preferred embodiment of the present invention. It should be pointed out that ordinary technicians in this technical field can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A hydraulic output power tester, characterized in that: It includes a gear pump, a multi-way valve and a plurality of pipelines, wherein one end of the gear pump is connected to the multi-way valve through the pipeline; The hydraulic output power tester also includes an oil inlet joint and an oil return joint, one end of the oil inlet joint and the oil return joint are respectively connected to the multi-way valve, and the other end of the oil inlet joint and the oil return joint are connected through a pipeline; The hydraulic output power tester also includes a flow meter, a power meter and a pressure gauge arranged in sequence, the flow meter, the power meter and the pressure gauge are connected through pipelines, one end of the pressure gauge is connected to one end of the return oil joint, and one end of the flow meter is connected to one end of the oil inlet joint.

2. The hydraulic output power tester according to claim 1, characterized in that: A flow meter is also provided on the pipeline between the oil inlet joint and the oil return joint.

3. The hydraulic output power tester according to claim 2, characterized in that: A flow valve is also provided on the pipeline between the flow meter and the oil inlet joint.

4. The hydraulic output power tester according to claim 3, characterized in that: A pressure gauge is also provided on the pipeline between the pressure gauge and the oil return joint.

5. The hydraulic output power tester according to claim 4, characterized in that: The multi-way valve comprises a first multi-way valve, and a first operating rod is disposed at one end of the first multi-way valve.

6. The hydraulic output power tester according to claim 5, characterized in that: The multi-way valve further comprises a second multi-way valve, which is arranged opposite to the first multi-way valve, and a second operating rod is arranged at one end of the second multi-way valve.

7. The hydraulic output power tester according to claim 6, characterized in that: The first multi-way valve and the second multi-way valve are both provided with oil ports which are connected with the oil inlet connector and the oil return puller respectively.

8. The hydraulic output power tester according to claim 7, characterized in that: The first multi-way valve and the second multi-way valve are both three-position four-way reversing valves.

9. The hydraulic output power tester according to claim 8, characterized in that: The hydraulic output power tester also includes an oil tank, and the oil inlet end of the gear pump is arranged in the oil tank.

10. The hydraulic output power tester according to claim 9, characterized in that: The hydraulic output power tester further comprises a filter, one end of which is connected to the gear pump, and the other end of which is connected to the oil tank.

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