CN103362897A - Early warning protection device of travel motor as well as travel motor and travel machinery - Google Patents
Early warning protection device of travel motor as well as travel motor and travel machinery Download PDFInfo
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- CN103362897A CN103362897A CN2013102564466A CN201310256446A CN103362897A CN 103362897 A CN103362897 A CN 103362897A CN 2013102564466 A CN2013102564466 A CN 2013102564466A CN 201310256446 A CN201310256446 A CN 201310256446A CN 103362897 A CN103362897 A CN 103362897A
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- 229920003023 plastic Polymers 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 140
- 238000010586 diagram Methods 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
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Abstract
The invention relates to an early warning protection device of a travel motor as well as the travel motor and travel machinery. The early warning protection device comprises a pressure relief valve mounted at an oil outlet of the travel motor. An oil discharge assistance effect can be achieved when an oil discharge channel is blocked through the pressure relief valve; an oil inlet of the pressure relief valve is connected with the oil outlet of the travel motor; an oil outlet of the pressure relief valve is connected with an oil storage bottle capable of storing the oil discharge capacity; an early warning device is arranged on the oil storage bottle to give an alarm when the oil discharge capacity exceeds the standard; the pressure relief opening pressure value of the pressure relief valve is less than the predetermined value of an instantaneous pressure peak of a housing of the travel motor; the oil discharge capacity of the pressure relief valve can be displayed through the oil storage bottle; the oil discharge capacity can reflect whether the instantaneous pressure peak of the housing of the travel motor exceeds the standard or not, so that the alarm is given when the oil discharge capacity of the pressure relief valve is higher to remind a staff to repair the travel motor, and further the travel motor is prevented from being damaged.
Description
Technical Field
The invention relates to a walking machine, in particular to an early warning protection device of a walking motor, the walking motor with the early warning protection device and the walking machine with the walking motor.
Background
At present, a traveling motor of a traveling machine such as a hydraulic excavator is generally installed on a traveling part of the traveling machine and drives the traveling part to travel through a speed reducer, the components of the walking machine, such as an oil tank, a main valve, a main pump and the like, are generally arranged on the body part of the walking machine, so that the distance between a walking motor and an oil circuit connected with the walking motor is longer, when a hydraulic loop is arranged for the walking motor, the oil drain port of the walking motor is directly connected with the oil return tank of the pipeline, so that the oil drain pipeline is longer, if the walking machine works in a low-temperature area, such as below twenty degrees below zero, the hydraulic circulation of the motor is limited when the walking machine walks, the temperature and the viscosity of hydraulic oil near the walking motor are low, the temperature is lower than the freezing point of the hydraulic oil when the motor is started under certain conditions, under the condition, the abrasion of the walking motor is aggravated, the pressure of a shell of the walking motor is increased due to the blockage of an oil drainage pipeline, and a major fault is caused in the serious condition.
In addition, the instantaneous pressure peak value of the shell of the walking motor can exceed the standard even if the walking motor is used for a long time in a normal environment, and the excessive pressure oil can flow to the oil return tank through the oil drainage pipeline and is not easy to be detected under the condition that the instantaneous pressure peak value of the shell of the walking motor in the normal environment exceeds the standard; if the instantaneous pressure peak value of the shell of the walking motor exceeds the standard only occasionally, the walking motor cannot be damaged too much, and if the instantaneous pressure peak value of the shell of the walking motor exceeds the standard frequently, the walking motor can be broken down greatly; the fault is difficult to find in time under normal conditions, the motor is damaged when the fault is found, and a speed reducer connected with the motor is possibly damaged under more serious conditions, so that larger faults are caused.
Therefore, the problem that the pressure of the shell of the walking motor is ultrahigh due to the fact that the instantaneous pressure peak value of the shell of the existing walking motor is not easy to be perceived, and needs to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of this, the invention aims to provide an early warning protection device for a walking motor, so as to solve the problem that the instantaneous pressure peak value of the shell of the existing walking motor exceeds the standard and is not easy to be perceived, so that the pressure on the shell of the walking motor is ultrahigh.
The invention also provides a walking motor which is provided with the early warning protection device, and the problem that the pressure of the shell of the walking motor is ultrahigh due to the fact that the instantaneous pressure peak value of the shell of the existing walking motor exceeds the standard and is not easy to detect can be solved.
The invention provides a walking machine which is provided with the walking motor, and can solve the problem that the instantaneous pressure peak value of the shell of the existing walking motor exceeds the standard and is not easy to be perceived, so that the pressure on the shell of the walking motor is ultrahigh.
On one hand, the invention provides an early warning protection device of a walking motor, which comprises a pressure release valve arranged at an oil drainage port of the walking motor;
an oil inlet of the pressure release valve is connected with an oil drainage port of the walking motor, and an oil outlet of the pressure release valve is connected with an oil storage bottle;
the oil storage bottle is provided with an early warning device for alarming after the oil in the oil storage bottle exceeds a preset amount; wherein,
and the pressure relief opening pressure value of the pressure relief valve is a preset value smaller than the instantaneous pressure peak value of the walking motor shell.
Further, the pressure relief valve is a one-way valve; wherein,
an oil inlet of the one-way valve is connected with an oil drainage port of the walking motor, and an oil outlet of the one-way valve is connected with an oil storage bottle;
the opening pressure value of the one-way valve is a preset value smaller than the instantaneous pressure peak value of the walking motor shell.
Further, the check valve is a hydraulic control spring check valve.
Further, the early warning device includes: the oil quantity measuring device and the sound alarm device; wherein,
the oil quantity measuring device is arranged on the oil storage bottle and is used for measuring the oil quantity in the oil storage bottle;
the sound alarm device is in signal connection with the oil quantity measuring device, and after the oil quantity measured by the oil quantity measuring device exceeds a preset value, the sound alarm device starts sound alarm.
Further, the oil storage bottle comprises an oil inlet arranged at the bottom of the oil storage bottle and an oil outlet which is higher than the oil inlet at the bottom by a preset height;
an oil outlet and an oil inlet of the oil storage bottle are connected with the early warning device; wherein,
the early warning device is an alarm oil pipe connected to an oil outlet of the oil storage bottle.
Furthermore, the oil storage bottle be provided with the outside observation area that is used for observing the interior fluid of oil storage bottle.
Furthermore, the oil storage bottle is a transparent plastic bottle.
The invention also provides a walking motor which is provided with the early warning protection device.
Furthermore, a box body is arranged outside the walking motor,
the oil storage bottle is arranged in the box body;
and the outlet of the early warning oil pipe is arranged outside the box body.
The invention also provides a walking machine, and the walking machine is provided with the walking motor.
Compared with the prior art, the invention has the beneficial effects that:
the embodiment of the invention provides an early warning protection device of a walking motor, which comprises a pressure release valve arranged at an oil drainage port of the walking motor; the pressure relief valve can play a role in assisting oil drainage when an oil drainage oil path is blocked, and can also play a role in assisting oil drainage when the instantaneous pressure of the traveling motor shell exceeds the peak value; an oil inlet of the pressure release valve is connected with an oil drainage port of the traveling motor, an oil outlet of the pressure release valve is connected with an oil storage bottle, oil drainage quantity can be stored, and an early warning device is arranged on the oil storage bottle and gives an alarm when the oil drainage quantity exceeds the standard; and the pressure relief opening pressure value of the pressure relief valve is a preset value smaller than the instantaneous pressure peak value of the walking motor shell. The oil quantity that this relief valve let out can be shown through the oil storage bottle, and what of this oil quantity can embody the condition that the instantaneous pressure peak value of walking motor casing exceeds standard, and then reports to the police under the more condition of relief valve draining, reminds the staff to in time maintain the walking motor, prevents that walking motor casing pressure from superelevation.
The unloading valve can be a one-way valve, the one-way valve is simple in structure and convenient to install, and the opening pressure value of the one-way valve is slightly smaller than the instantaneous pressure peak value of the shell of the walking motor; in order to facilitate the adjustment of the opening pressure value of the one-way valve, the embodiment of the invention preferably uses the spring one-way valve, and the opening pressure of the spring one-way valve can be conveniently adjusted by adjusting the elastic force of the spring one-way valve.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic block diagram of the structural principle of the early warning device for installing an oil storage bottle in the second embodiment of the present invention;
fig. 3 is a schematic block diagram of the structural principle of the early warning device for installing the oil storage bottle in the third embodiment of the invention.
Description of reference numerals: 1. a left travel motor; 11. a right travel motor; 2. a central swivel joint; 3. a one-way valve; 4. an oil storage bottle; 41. an oil inlet; 42. an oil outlet; 43. a height measuring device; 44. a sound alarm device; 45. a weight measuring device; 5. an alarm oil pipe; 6. a left oil drain port; 7. and a right oil drainage port.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the description and sequence of descriptions of specific structures in this section are merely illustrative of specific embodiments and should not be construed as limiting the scope of the invention in any way.
The embodiment of the invention has the main improvement that on the basis of keeping the hydraulic pipeline of the original walking motor, the oil drainage port of the walking motor is connected with the pressure relief valve, so that the pressure relief valve can play a role of assisting oil drainage when an oil drainage oil path is blocked and can also play a role of assisting oil drainage when the instantaneous pressure of the shell of the walking motor exceeds the peak value of the instantaneous pressure; another key point still lies in, the pressure release pressure of relief valve is for being less than the instantaneous pressure peak value of walking motor casing slightly, and the relief valve during operation like this, the pressure of walking motor casing has just arrived warning pressure basically, and an oil storage bottle is connected to the relief valve oil-out, is provided with early warning device on the oil storage bottle, can show the oil mass that this relief valve let out through the oil storage bottle, and then reports to the police under the more condition of relief valve draining, reminds the staff to in time maintain the walking motor, prevents that the great trouble from appearing in the walking motor.
The specific structure is that, as shown in fig. 1, a hydraulic schematic diagram of the early warning protection device mounted on a walking motor is shown, the diagram includes a left walking motor 1 and a right walking motor 11, the left and right walking motors jointly drive a central swivel joint 2, wherein the early warning protection device can be respectively mounted on a left oil drain opening 6 of the left walking motor 1 and a right oil drain opening 7 of the right walking motor 11, the mounting structures of the early warning protection device are basically similar, and the structure of the early warning protection device mounted on the left walking motor 1 is explained in detail below.
As shown in fig. 1, the walking motor early warning protection device comprises a one-way valve 3 arranged on a left oil drainage port 7 of a left walking motor 1; an oil inlet of the one-way valve 3 is connected with a left oil drainage port 6 of the left walking motor 1, and an oil outlet of the one-way valve 3 is connected with an oil storage bottle 4; the oil storage bottle 4 is provided with an early warning device; and the opening pressure value of the check valve is a predetermined value smaller than the instantaneous pressure peak value of the casing of the left traveling motor 1. The pressure relief oil path connected with the one-way valve is connected with the oil drainage oil path of the left walking motor 1 in parallel.
Wherein, the instantaneous pressure peak value of the shell of the left walking motor 1 is the maximum pressure value which can be instantaneously born by the shell of the left walking motor 1. In the embodiment of the invention, the check valve 3 is preferably selected, but not limited to the check valve 3, and other pressure relief valves with adjustable opening pressure can be adopted, and when other pressure relief valves are selected, the pressure relief opening pressure is selected to be a preset value smaller than the instantaneous pressure peak value of the shell of the left walking motor 1; the connection oil path is similar to that of the check valve 3 and will not be described in detail.
The check valve 3 is simple in structure, the opening pressure of the check valve can be set to be slightly smaller than the instantaneous pressure peak value of the shell of the left walking motor 1, and when an oil drainage oil path is blocked, good oil drainage protection and early warning that the shell pressure of the left walking motor 1 exceeds the standard can be provided.
In order to facilitate the adjustment of the opening pressure of the check valve, the check valve 3 is preferably a spring check valve according to the embodiment of the present invention.
In addition, as shown in fig. 1, the oil storage bottle 4 in the first embodiment includes an oil inlet 41 disposed at the bottom thereof and an oil outlet 42 higher than the bottom oil inlet 41 by a predetermined height (as is apparent from the drawing, the top and the bottom are selected and may not be limited to the top and the bottom, as long as the oil outlet 42 is higher than the oil inlet 41); an oil outlet 42 of an oil inlet 4 of the oil storage bottle is connected with an early warning device; wherein, the early warning device is an alarm oil pipe 5 connected with the oil outlet 42 of the oil storage bottle.
Because the protective box bodies are arranged outside the walking motors, the alarm oil pipe 5 can be led out of the box body (not shown in the figure) of the left walking motor 1, when the oil in the oil storage bottle 4 exceeds the height of the oil outlet 42, the oil flows to the alarm oil pipe 5 through the oil outlet 42, the alarm oil pipe 5 flows the oil to the outer side of the box body of the left walking motor 1, and a worker can find the situation that the instantaneous pressure peak value of the walking motor shell exceeds the standard in time and maintain the walking motor shell in time, so that the service life of the walking motor is prolonged.
In addition, in order to directly observe the oil condition in the oil storage bottle 4, the oil storage bottle 4 may be provided with an external observation area for observing the oil in the oil storage bottle 4. The oil liquid amount in the oil storage bottle can be rapidly observed through the external observation area, and workers and families are reminded of maintaining in time. The structure may be by providing a partially transparent region. It is also possible to directly provide the oil storage bottle 4 as a transparent plastic bottle.
Of course, as another option, the warning devices according to the second and third embodiments of the present invention may include: the oil quantity measuring device and the sound alarm device; the oil quantity measuring device is arranged on the oil storage bottle 4 and measures the oil quantity in the oil storage bottle 4; the sound alarm device is in signal connection with the oil quantity measuring device, and starts sound alarm when the oil quantity measured by the oil quantity measuring device exceeds a preset value.
Specifically, as shown in fig. 2, in the second embodiment, the oil amount measuring device may be a height measuring device 43 that is provided on the oil storage bottle 4 and measures the height of the oil, and by setting a maximum value for measurement, after the measured height of the oil in the oil storage bottle 4 exceeds a predetermined height, the height measuring device 43 sends a signal to an audible alarm device 44, and the audible alarm device 44 starts an alarm.
As shown in fig. 3, in the third embodiment, the oil amount measuring device may be a weight measuring device 45 disposed at the bottom of the oil storage bottle 4, and by setting a maximum value for measurement, after the measured oil in the oil storage bottle 4 exceeds a predetermined weight, the weight measuring device 45 sends a signal to the sound alarm device 44, and the sound alarm device 44 turns on an alarm.
In the second and third embodiments, except that the early warning device is different from the first embodiment, other structures are basically the same, and are not described herein again.
The embodiment of the invention also provides a walking motor which is provided with the early warning protection device.
Preferably, a box (not shown in the figure) is arranged outside the walking motor, and the oil storage bottle 4 is arranged in the box; the outlet of the early warning oil pipe 5 is arranged outside the box body.
Since the above-mentioned early warning protection device has the above-mentioned technical effects, the walking motor provided with the early warning protection device should also have corresponding technical effects, and the specific implementation process thereof is similar to that of the above-mentioned embodiment, and will not be described again.
The embodiment also provides a walking machine which is provided with the walking motor.
Since the above-mentioned traveling motor has the above-mentioned technical effects, the traveling machine provided with the traveling motor should also have corresponding technical effects, and the specific implementation process thereof is similar to that of the above-mentioned embodiment, and will not be described again.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. The early warning protection device of the walking motor is characterized by comprising a pressure release valve arranged at an oil drainage port of the walking motor;
an oil inlet of the pressure release valve is connected with an oil drainage port of the walking motor, and an oil outlet of the pressure release valve is connected with an oil storage bottle;
the oil storage bottle is provided with an early warning device for alarming after the oil in the oil storage bottle exceeds a preset amount; wherein,
and the pressure relief opening pressure value of the pressure relief valve is a preset value smaller than the instantaneous pressure peak value of the walking motor shell.
2. The early warning protection device for a walking motor as claimed in claim 1, wherein: the pressure release valve is a one-way valve (3); wherein,
an oil inlet of the one-way valve (3) is connected with an oil drainage port of the walking motor, and an oil outlet of the one-way valve (3) is connected with an oil storage bottle (4);
the opening pressure value of the one-way valve (3) is a preset value smaller than the instantaneous pressure peak value of the walking motor shell.
3. The early warning protection device for a walking motor as claimed in claim 2, wherein: the check valve (3) is a hydraulic control spring check valve.
4. The early warning protection device for a walking motor as claimed in any one of claims 1 to 3, wherein: the early warning device includes: the oil quantity measuring device and the sound alarm device; wherein,
the oil quantity measuring device is arranged on the oil storage bottle (4) and is used for measuring the oil quantity in the oil storage bottle (4);
the sound alarm device is in signal connection with the oil quantity measuring device, and after the oil quantity measured by the oil quantity measuring device exceeds a preset value, the sound alarm device starts sound alarm.
5. The early warning protection device for a walking motor as claimed in any one of claims 1 to 3, wherein: the oil storage bottle (4) comprises an oil inlet (41) arranged at the bottom of the oil storage bottle and an oil outlet (42) which is higher than the oil inlet (41) at the bottom by a preset height;
an oil outlet (42) of the oil storage bottle (4) is connected with an early warning device; wherein,
the early warning device is an alarm oil pipe (5) connected to an oil outlet (42) of the oil storage bottle.
6. The early warning protection device for a walking motor as claimed in claim 1, wherein: the oil storage bottle (4) is provided with an external observation area for observing oil in the oil storage bottle (4).
7. The early warning protection device for a walking motor as claimed in claim 1, wherein: the oil storage bottle (4) is a transparent plastic bottle.
8. A travel motor characterized by: the walking motor is provided with the early warning protection device as claimed in any one of claims 1 to 7.
9. The travel motor of claim 8, wherein: a box body is arranged outside the walking motor,
the oil storage bottle (4) is arranged in the box body;
and an outlet of the early warning oil pipe (5) is arranged outside the box body.
10. A mobile machine, characterized by: the walking machine is provided with a walking motor according to any one of claims 8-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102564466A CN103362897A (en) | 2013-06-25 | 2013-06-25 | Early warning protection device of travel motor as well as travel motor and travel machinery |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102564466A CN103362897A (en) | 2013-06-25 | 2013-06-25 | Early warning protection device of travel motor as well as travel motor and travel machinery |
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| CN103362897A true CN103362897A (en) | 2013-10-23 |
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| CN2013102564466A Pending CN103362897A (en) | 2013-06-25 | 2013-06-25 | Early warning protection device of travel motor as well as travel motor and travel machinery |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104003306A (en) * | 2014-06-04 | 2014-08-27 | 徐工集团工程机械股份有限公司 | Hydraulic starting system, method and crane |
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| CN202808200U (en) * | 2012-09-27 | 2013-03-20 | 太原重工股份有限公司 | Winch and rotary table detachable hydraulic control device |
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2013
- 2013-06-25 CN CN2013102564466A patent/CN103362897A/en active Pending
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| US5419130A (en) * | 1991-08-28 | 1995-05-30 | Hydromatik Gmbh | Hydrostatic machine with drain oil discharge |
| US6755018B2 (en) * | 2000-02-28 | 2004-06-29 | Ideachip Oy | Leakage oil return apparatus for a hydraulic motor |
| JP2001355611A (en) * | 2000-06-15 | 2001-12-26 | Nippon Sharyo Seizo Kaisha Ltd | Drain circuit for hydraulic motor |
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Application publication date: 20131023 |