CN211778270U - Sweeping disc adjusting device for sweeping vehicle and sweeping vehicle - Google Patents
Sweeping disc adjusting device for sweeping vehicle and sweeping vehicle Download PDFInfo
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- CN211778270U CN211778270U CN201922307579.7U CN201922307579U CN211778270U CN 211778270 U CN211778270 U CN 211778270U CN 201922307579 U CN201922307579 U CN 201922307579U CN 211778270 U CN211778270 U CN 211778270U
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Abstract
The utility model discloses a sweeping machine is with sweeping dish adjusting device, sweeping machine, this sweeping machine is with sweeping dish adjusting device includes: the system comprises a piston cylinder and a pressure control assembly, wherein the pressure control assembly can convey media to a rodless cavity of the piston cylinder and control the pressure of the media; wherein, the output shaft of the piston cylinder is connected with the sweeping disc; when the pressure control assembly is in the first state, the ground contact force of the initial road surface to the sweeping disc, the vertical acting force of the piston cylinder to the sweeping disc and the gravity of the sweeping disc are balanced, and the sweeping disc is in contact with the initial road surface. In the sweeping disc adjusting device for the sweeping vehicle, the ground contact force can be adaptively adjusted according to the specific road conditions with uneven road surfaces, so that the abrasion of a sweeping brush is reduced, and the sweeping effect on the uneven road surfaces is also improved; moreover, the ground contact force can be automatically adjusted along with the abrasion of the sweeper brush, the recalibration by workers is not needed, and the workload of the workers is reduced.
Description
Technical Field
The utility model relates to a road cleans technical field, and more specifically says, relates to a sweeping machine is with sweeping dish adjusting device, sweeping machine.
Background
Along with the continuous improvement of the requirement on environmental protection, more and more roads need to be cleaned and cleaned, the workload is continuously increased, and the mechanized cleaning operation mode represented by a road sweeper is rapidly popularized.
In the sweeping machine, a sweeping brush is arranged on a sweeping disc, and the sweeping brush is responsible for sweeping the road surface garbage to a sucking disc and sucking the garbage to a garbage can by the sucking disc. The sweeping effect of the sweeper brush directly influences the use performance of the sweeper truck, meanwhile, the brush hair of the sweeper brush is a wearing part, the service life of the brush hair has a great influence on the use cost of the whole sweeper truck, and the ground contact force of the sweeper brush directly determines the sweeping effect of the sweeper brush and the service life of the brush hair.
At present, the ground contact force is realized by limiting the lowering position of a hydraulic cylinder through an adjusting rod on a piston rod of the hydraulic cylinder. Specifically, the hydraulic cylinder is lowered, the sweeping disc descends, the sweeping brush touches the ground, the adjusting rod is in threaded fit with the piston rod, the position of the sweeping disc is adjusted by manually adjusting the position of the adjusting rod on the piston rod, and therefore the ground touch force is adjusted.
The ground contact force is adjusted manually and needs to be preset before the sweeping machine runs. Because the ground contact force is mechanically limited in advance, the ground contact force cannot be automatically adjusted along with the unevenness of the road surface in the running process of the sweeping machine, the abrasion of the brush hair is fast, and the sweeping effect on the uneven road surface is poor. In addition, the sweeper is worn after working for a period of time, and the ground contact force needs to be calibrated again by workers, so that the workload of the workers is large.
In summary, how to adjust the position of the sweeping disc to adjust the ground contact force so as to reduce the abrasion of the sweeping brush and improve the sweeping effect on uneven road surfaces is a problem to be solved by those skilled in the art.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims at providing a sweeping disk adjusting device for sweeping machine to reduce the wearing and tearing of brush, improve the effect of cleaning to the unevenness road surface. Another object of the utility model is to provide a sweeping machine with above-mentioned sweeping disk adjusting device for sweeping machine.
In order to achieve the above object, the utility model provides a following technical scheme:
a sweeping disk adjusting device for a sweeping vehicle comprises:
the system comprises a piston cylinder and a pressure control assembly, wherein the pressure control assembly can convey media to a rodless cavity of the piston cylinder and control the pressure of the media;
wherein, the output shaft of the piston cylinder is connected with the sweeping disc;
when the pressure control assembly is in a first state, the ground contact force of an initial road surface to the sweeping disc, the vertical acting force of the piston cylinder to the sweeping disc and the gravity of the sweeping disc are balanced, and the sweeping disc is in contact with the initial road surface.
Preferably, when the pressure control assembly is in the second state, the vertical acting force of the piston cylinder on the sweeping disc is larger than the gravity of the sweeping disc, and the sweeping disc is lifted;
when the pressure control assembly is in a third state, the vertical acting force of the piston cylinder on the sweeping disc is smaller than the gravity of the sweeping disc, and the sweeping disc ascends and descends.
Preferably, the pressure control assembly comprises: a pressure reducing valve, a one-way valve and a reversing valve;
the inlet of the pressure reducing valve is used for being communicated with a pressure medium source of a sweeping machine, the outlet of the pressure reducing valve is communicated with a port P of the reversing valve, the outlet of the one-way valve is communicated with a pressure medium return port of the sweeping machine, the inlet of the one-way valve is communicated with a port T of the reversing valve, the control port of the one-way valve is communicated with a port A of the reversing valve, and a port B of the reversing valve is communicated with a rodless cavity of the piston cylinder;
when the reversing valve is in the first valve position, the reversing valve is disconnected; when the reversing valve is in a second valve position, the port P is communicated with the port A, and the port T is communicated with the port B; when the reversing valve is in a third valve position, the port P is communicated with the port B, and the port T is communicated with the port A.
Preferably, the piston cylinder is a piston cylinder, and the check valve is a hydraulic control check valve.
Preferably, the pressure reducing valve is an electric proportional pressure reducing valve, and the reversing valve is a three-position four-way electromagnetic valve.
Preferably, a cylinder body of the piston cylinder is rotatably arranged on a frame of the sweeping machine, and an output shaft of the piston cylinder is rotatably connected with the sweeping disc.
Based on the foregoing provide sweeping disc adjusting device for sweeping machine, the utility model also provides a sweeping machine, this sweeping machine is including sweeping disc adjusting device, should sweep a set adjusting device and be above-mentioned arbitrary sweeping disc adjusting device for sweeping machine.
The utility model provides a sweeping machine is with sweeping dish adjusting device comes to the rodless chamber transport medium and the control medium pressure of piston cylinder through the pressure control subassembly, then the pressure control subassembly can adjust the piston cylinder to the effort of sweeping the dish, when the pressure control subassembly is in first state, initial road is to sweeping the vertical effort of sweeping the dish, the gravity balance of sweeping the dish of the ground power of touching of dish, piston cylinder for sweep dish and initial road surface contact. When the road surface is convex, the ground contact force is increased, the sweeping disc is automatically lifted, the contact surface with the ground is reduced, and the ground contact force is reduced to a preset balance point, so that the abrasion degree of the sweeper brush is reduced, and the abrasion of the sweeper brush is slowed down. When the road surface is sunken or the sweeping brush is worn, the ground contact force is reduced, the sweeping disc automatically lowers, the contact surface with the ground is increased, and the ground contact force is increased to a preset balance point.
Therefore, in the sweeping disc adjusting device for the sweeping vehicle, the ground contact force can be adaptively adjusted according to the specific road condition with uneven road surface, the abrasion of the sweeping brush is reduced, and the sweeping effect on the uneven road surface is also improved; moreover, the ground contact force can be automatically adjusted along with the abrasion of the sweeper brush, the recalibration by workers is not needed, and the workload of the workers is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a sweeping disc adjusting device for a sweeping vehicle provided by the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, the embodiment of the utility model provides a sweeping disk adjusting device for sweeping machine includes: a piston cylinder 14, and a pressure control assembly capable of delivering a medium to a rodless cavity of the piston cylinder 14 and controlling the pressure of the medium.
The output shaft of the piston cylinder 14 is connected with a sweeping disc. When the pressure control assembly is in the first state, the ground contact force of the initial road surface to the sweeping disc, the vertical acting force of the piston cylinder 14 to the sweeping disc and the gravity of the sweeping disc are balanced, and the sweeping disc is in contact with the initial road surface.
The initial road surface may be a horizontal road surface, a raised road surface higher than the horizontal road surface, or a depressed road surface lower than the horizontal road surface. For the convenience of calibration and automatic adjustment, the initial road surface is preferably selected to be a horizontal road surface.
The embodiment of the utility model provides a sweeping machine is with sweeping dish adjusting device comes the pressure of carrying medium and control medium to the rodless chamber of piston cylinder 14 through the pressure control subassembly, then the pressure control subassembly can adjust piston cylinder 14 to the effort of sweeping the dish, when the pressure control subassembly is in first state, initial road is to sweeping the ground power of touching of dish, piston cylinder 14 is to sweeping the vertical effort of dish, sweeping the gravity balance of dish for sweep dish and initial road surface contact. When the road surface is convex, the ground contact force is increased, the vertical acting force of the piston cylinder 14 on the sweeping disc and the gravity of the sweeping disc are unchanged, the sweeping disc is automatically lifted, the contact surface with the ground is reduced, the ground contact force is reduced to a preset balance point, the abrasion degree of the sweeping brush is reduced, and the abrasion of the sweeping brush is reduced. When the road surface is sunken or the sweeping brush is abraded, the ground contact force is reduced, the vertical acting force of the piston cylinder 14 on the sweeping disc and the gravity of the sweeping disc are unchanged, the sweeping disc automatically lowers, the ground contact surface is increased, and the ground contact force is increased to a preset balance point.
Therefore, in the sweeping disc adjusting device for the sweeping vehicle provided by the embodiment of the utility model, the ground contact force can be adaptively adjusted according to the specific road conditions with uneven road surfaces, so that the abrasion of the sweeping brush is reduced, and the sweeping effect on uneven road surfaces is also improved; moreover, the ground contact force can be automatically adjusted along with the abrasion of the sweeper brush, the recalibration by workers is not needed, and the workload of the workers is reduced.
In order to meet other uses of the sweeping vehicle, in the sweeping disk adjusting device for the sweeping vehicle, when the pressure control assembly is in the second state, the vertical acting force of the piston cylinder 14 on the sweeping disk is greater than the gravity of the sweeping disk, and the sweeping disk rises; when the pressure control assembly is in the third state, the vertical acting force of the piston cylinder 14 on the sweeping disc is smaller than the gravity of the sweeping disc, and the sweeping disc descends. Like this, realized sweeping the automatic rising and descending of dish, satisfied the demand that the dish was swept in the lift when the sweeping machine operation was ended and the demand that the dish was swept in the time of sweeping machine overhauls.
The specific structure of the pressure control assembly is various and can be designed according to actual needs. In order to simplify the structure, the pressure control assembly includes: a pressure reducing valve 11, a check valve 12 and a reversing valve 13.
The inlet of the pressure reducing valve 11 is used for being communicated with a pressure medium source of a sweeping machine, the outlet of the pressure reducing valve 11 is communicated with a port P of a reversing valve 13, the outlet of a check valve 12 is communicated with a pressure medium return port of the sweeping machine, the inlet of the check valve 12 is communicated with a port T of the reversing valve 13, a control port of the check valve 12 is communicated with a port A of the reversing valve 13, and a port B of the reversing valve 13 is communicated with a rodless cavity of a piston cylinder 14;
when the change valve 13 is in the first valve position, the change valve 13 is disconnected; when the reversing valve 13 is in the second valve position, the port P is communicated with the port A, and the port T is communicated with the port B; when the change valve 13 is in the third valve position, the port P is communicated with the port B, and the port T is communicated with the port A.
It is understood that the non-return valve 12 leads from the switching valve 13 to the return pressure medium.
The medium may be a liquid medium or a gaseous medium. For ease of control, the medium is preferably a liquid medium. Further, the medium is pressure oil. At this time, the piston cylinder 14 is a piston cylinder, and the check valve 12 is a pilot check valve. Of course, the medium may be a gas, in which case the piston cylinder 14 is a piston cylinder and the check valve 12 is a pneumatically controlled check valve.
For convenience of control, the pressure reducing valve 11 is an electric proportional pressure reducing valve, and the reversing valve 13 is a three-position four-way electromagnetic valve. Thus, the electronic control adjustment is realized, and the automation level is improved.
As shown in fig. 1, when neither DT3 nor DT2 is powered, the directional valve 13 is in the first valve position; when DT2 is electrified and DT3 is not electrified, the reversing valve 13 is in a second valve position; when DT3 is energized and DT2 is not energized, the directional control valve 13 is in the third valve position. The decompression value of the electro-proportional pressure reducing valve is set by giving the current value of the electromagnet DT1, that is, the decompression value of the electro-proportional pressure reducing valve is adjusted by adjusting the current value of the fixed electromagnet DT 1. When the electromagnet DT1 is electrified, the electric proportional pressure reducing valve is opened; when electromagnet DT1 is de-energized, the electro-proportional pressure reducing valve closes.
As shown in fig. 1, the sweeping disk adjusting device for the sweeping machine has the following adjusting modes:
the ground contact force is calibrated before the sweeping machine works, DT1 and DT3 are electrified, a rodless cavity of the piston cylinder 14 is communicated with a pressure medium source through a pressure reducing valve 11, the outlet pressure of the pressure reducing valve 11 is the acting force of the piston cylinder 14 on the sweeping disc, at the moment, the pressure control assembly is in a first state, and the ground contact force, the vertical acting force of the piston cylinder 14 on the sweeping disc and the gravity of the sweeping disc are balanced. Because the gravity of the sweeping disc is unchanged, the current value of the electromagnet DT1 is adjusted, the outlet pressure of the pressure reducing valve 11 is changed, and the ground contact force is correspondingly changed along with the change of the outlet pressure of the pressure reducing valve 11;
when the sweeping machine works, DT1 and DT3 are electrified, a rodless cavity of the piston cylinder 14 is communicated with a pressure medium source through a pressure reducing valve 11, and the ground contact force, the vertical acting force of the piston cylinder 14 on the sweeping disc and the gravity of the sweeping disc form force balance. At the moment, the gravity of the sweeping disc and the outlet pressure of the pressure reducing valve 11 are unchanged, namely the gravity of the sweeping disc and the vertical acting force of the piston cylinder 14 on the sweeping disc are unchanged, when the road surface is convex, the ground contact force is increased, the sweeping disc is automatically lifted, the ground contact surface is reduced, and therefore the ground contact force is reduced to a preset balance point; when the road surface is sunken, the ground contact force is reduced, the sweeping disc automatically lowers, the contact surface with the ground is increased, and therefore the ground contact force is increased to a preset balance point;
when the operation of the sweeping machine is finished, the DT3 is electrified, the DT1 is not electrified, the pressure reducing valve 11 fails, at the moment, the pressure control assembly is in the second state, the vertical acting force of the piston cylinder 14 on the sweeping disc is greater than the gravity of the sweeping disc, and the sweeping disc rises to the highest point;
when the sweeping machine is overhauled and needs to sweep the dish and transfer, DT2 gets electricity, and pressure oil gets into the control hydraulic fluid port of check valve 12, and check valve 12 opens, and at this moment, pressure control subassembly is in the third state, and the vertical effort of piston cylinder 14 to sweeping the dish is less than the gravity of sweeping the dish, sweeps the dish and transfers.
Other configurations of the pressure control assembly may be selected, such as using other valves and corresponding piping instead of the check valve 12, as long as the pressure control assembly is in the third state, and the present invention is not limited to the above embodiment.
In the sweeping disk adjusting device for the sweeping vehicle, when the acting force of the piston cylinder 14 on the sweeping disk is not changed, if the contact force is changed, the piston cylinder 14 needs to move. For the convenience of implementation, the piston cylinder 14 is preferably selected to rotate, specifically, the cylinder body of the piston cylinder 14 is rotatably arranged on the frame of the sweeping machine, and the output shaft of the piston cylinder 14 is rotatably connected with the sweeping disk. At this time, the hinge position of the cylinder body is lower than the hinge position of the output shaft.
Based on the sweeping disc adjusting device for sweeping machine that above-mentioned embodiment provided, the utility model also provides a sweeping machine, this sweeping machine is including sweeping disc adjusting device, should sweep the disc adjusting device and be above-mentioned embodiment sweeping disc adjusting device for sweeping machine.
Since the sweeping disc adjusting device for the sweeping vehicle provided by the embodiment has the technical effects, the sweeping vehicle comprises the sweeping disc adjusting device for the sweeping vehicle, the sweeping vehicle also has the corresponding technical effects, and the description is omitted.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (7)
1. The utility model provides a sweeping disk adjusting device for sweeping machine which characterized in that includes:
a piston cylinder (14), and a pressure control assembly capable of delivering a medium to a rodless cavity of the piston cylinder (14) and controlling the pressure of the medium;
wherein, the output shaft of the piston cylinder (14) is connected with the sweeping disc;
when the pressure control assembly is in a first state, the ground contact force of an initial road surface to the sweeping disc, the vertical acting force of the piston cylinder (14) to the sweeping disc and the gravity of the sweeping disc are balanced, and the sweeping disc is in contact with the initial road surface.
2. Sweeping disk adjusting device for a sweeping vehicle according to claim 1,
when the pressure control assembly is in a second state, the vertical acting force of the piston cylinder (14) on the sweeping disc is larger than the gravity of the sweeping disc, and the sweeping disc ascends;
when the pressure control assembly is in a third state, the vertical acting force of the piston cylinder (14) on the sweeping disc is smaller than the gravity of the sweeping disc, and the sweeping disc ascends and descends.
3. A sweeping wheel adjustment device for a sweeping vehicle according to claim 2, wherein the pressure control assembly comprises: a pressure reducing valve (11), a one-way valve (12) and a reversing valve (13);
the inlet of the pressure reducing valve (11) is used for being communicated with a pressure medium source of a sweeping machine, the outlet of the pressure reducing valve (11) is communicated with a port P of the reversing valve (13), the outlet of the one-way valve (12) is communicated with a pressure medium return port of the sweeping machine, the inlet of the one-way valve (12) is communicated with a port T of the reversing valve (13), a control port of the one-way valve (12) is communicated with a port A of the reversing valve (13), and a port B of the reversing valve (13) is communicated with a rodless cavity of the piston cylinder (14);
when the reversing valve (13) is in the first valve position, the reversing valve (13) is disconnected; when the reversing valve (13) is in a second valve position, the port P is communicated with the port A, and the port T is communicated with the port B; when the reversing valve (13) is in a third valve position, the port P is communicated with the port B, and the port T is communicated with the port A.
4. Sweeping disk adjusting device for a sweeping vehicle according to claim 3, characterized in that the piston cylinder (14) is a piston cylinder and the check valve (12) is a pilot operated check valve.
5. The sweeping disk adjusting device for the sweeping vehicle according to claim 3, wherein the pressure reducing valve (11) is an electric proportional pressure reducing valve, and the reversing valve (13) is a three-position four-way solenoid valve.
6. Sweeping disk adjusting device for a sweeping vehicle according to any one of claims 1-5, characterized in that the cylinder body of the piston cylinder (14) is rotatably arranged on the frame of the sweeping vehicle, and the output shaft of the piston cylinder (14) is rotatably connected with the sweeping disk.
7. A sweeper truck comprising a sweeping disc adjusting device, wherein the sweeping disc adjusting device is the sweeping disc adjusting device for the sweeper truck according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922307579.7U CN211778270U (en) | 2019-12-19 | 2019-12-19 | Sweeping disc adjusting device for sweeping vehicle and sweeping vehicle |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922307579.7U CN211778270U (en) | 2019-12-19 | 2019-12-19 | Sweeping disc adjusting device for sweeping vehicle and sweeping vehicle |
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| Publication Number | Publication Date |
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| CN211778270U true CN211778270U (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201922307579.7U Active CN211778270U (en) | 2019-12-19 | 2019-12-19 | Sweeping disc adjusting device for sweeping vehicle and sweeping vehicle |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163586A (en) * | 2021-04-02 | 2022-10-11 | 上海熙众新能源技术有限公司 | Sweeping vehicle, sweeping brush assembly, sweeping brush floating hydraulic system and control method thereof |
-
2019
- 2019-12-19 CN CN201922307579.7U patent/CN211778270U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115163586A (en) * | 2021-04-02 | 2022-10-11 | 上海熙众新能源技术有限公司 | Sweeping vehicle, sweeping brush assembly, sweeping brush floating hydraulic system and control method thereof |
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