Spraying system for excavator and excavator thereof

Abstract

The utility model relates to the technical field of excavator equipment, and particularly discloses a spraying system for an excavator and the excavator. The spraying system comprises a water storage part, a water quantity control suite and a detection host which are arranged on a main body of the excavator, as well as a spray head and a dust concentration detection device which are arranged on an excavating arm of the excavator, wherein the water storage part, the water quantity control suite and the spray head are sequentially connected through the water conveying pipeline; the dust concentration detection device is mounted on the digging arm through a cushioning kit and is connected with the detection host; and meanwhile, the detection host is connected with the water quantity control suite. The dust concentration detection device has the beneficial effects that the dust concentration detection device is mounted on the digging arm through the cushioning suite, so that when the excavator works, impact vibration generated after the bucket collides with an object material can be greatly absorbed by the cushioning suite; and the influence of impact vibration on the accuracy of the detection result of the dust concentration detection device is reduced.

Description

Technical Field

[0001] This utility model relates to the field of excavator equipment technology, specifically to a spraying system for an excavator and the excavator thereof. Background Technology

[0002] Excavators are among the most commonly used construction equipment on construction sites. During excavation and transportation operations, especially when handling dry soil, sand, and gravel, excavators easily generate large amounts of dust. This dust can pollute the environment, affect air quality, and potentially have adverse effects on the health of residents within and around the construction site.

[0003] For example, patent application number CN212052962U discloses a dust suppression device for excavators. This dust suppression device includes an outlet pipe whose water outlet is connected to a flexible second main pipe located outside a water storage tank. The end of the second main pipe away from the water storage tank is connected to multiple circumferentially distributed branch pipes. Each branch pipe is connected to a nozzle for spraying water to suppress dust. Each branch pipe contains a valve for opening and closing the water spray, and the valve has a control unit for opening and closing it. The nozzle has a dust sensor for detecting the concentration of dust in the air. The device also includes a microprocessor with a preset concentration value. The microprocessor is electrically connected to the control unit and the dust sensor. When the concentration value detected by at least one dust sensor is equal to or greater than the preset concentration value, the microprocessor sends a command to the control unit. The control unit then opens the valve at the location of the dust sensor, causing the nozzle to spray water into the air to suppress dust.

[0004] However, in the actual use of excavators, especially during excavation work, the collision between the bucket and the material will cause a large impact. This impact will be transmitted to the excavator arm, causing the dust sensor to vibrate and ultimately affecting the detection results of the dust sensor. This will make the timing of the dust suppression system spray inaccurate and make it difficult to spray and settle the dust accurately. Utility Model Content

[0005] This invention provides a spraying system for excavators, which can reduce the impact of excavator operation on dust concentration detection devices, thereby improving the detection accuracy of dust concentration detection devices and enabling the spraying system to carry out spraying work at the correct time, effectively completing the settling of dust.

[0006] This utility model is achieved through the following technical solution:

[0007] A sprinkler system for excavators, installed on an excavator for dust suppression, includes: a water storage unit, a water volume control kit, and a detection host disposed on the main body of the excavator; at least one set of nozzles and at least one set of dust concentration detection devices disposed on the excavator's boom; wherein the water storage unit, the water volume control kit, and the nozzles are sequentially connected via water supply pipes; the dust concentration detection devices are mounted on the boom via shock-absorbing kits and are linked to the detection host; simultaneously, the detection host is linked to the water volume control kit, and the detection host receives at least a detection signal from the dust concentration detection device and sends a control signal to the water volume control kit, thereby controlling the water supply of the water volume control kit based on the dust concentration detection results.

[0008] As a further improvement of this utility model, the shock absorption kit includes an air damping shock absorber, and the dust concentration detection device is installed on the excavator arm through the air damping shock absorber.

[0009] As a further improvement of this utility model, the top and bottom of the air damping shock absorber are provided with mounting plates. The two sets of mounting plates are fixedly connected to the excavator arm and the dust concentration detection device respectively by screw assembly. The screw assembly includes several mounting through holes opened on the mounting plate, several screws set on the excavator arm and the dust concentration detection device, several nuts, and several sets of shock-absorbing rubber pads sleeved on the screws.

[0010] As a further improvement of this utility model, the nozzle and the dust concentration detection device are mounted on the same section of the excavator arm.

[0011] As a further improvement of this utility model, at least one set of the nozzles and at least one set of the dust concentration detection devices are disposed on the boom of the excavator.

[0012] As a further improvement of this utility model, it also includes a mobile controller, which is linked to the detection host and sends a threshold adjustment signal to the detection host to control and adjust the threshold of dust detection concentration in the detection host.

[0013] As a further improvement of this utility model, the water supply pipe is a flexible hose.

[0014] As a further improvement of this utility model, the nozzle is a movable atomizing nozzle, which includes a nozzle drive unit and an atomizing nozzle body.

[0015] As a further improvement of this utility model, the dust concentration detection device includes a laser scattering detector for detecting the ambient dust concentration.

[0016] Secondly, this utility model provides an excavator that includes a spraying system for an excavator as described in any one of the above claims.

[0017] The beneficial effects of this utility model include:

[0018] (1) The dust concentration detection device was installed on the excavator arm by means of shock-absorbing kit, so that the impact vibration generated by the collision between the bucket and the target material when the excavator is working can be absorbed by the shock-absorbing kit, thereby reducing the impact vibration on the accuracy of the dust concentration detection device, making the spraying system more accurate in controlling the spraying time, achieving precise dust reduction and improving the utilization rate of spraying water.

[0019] (2) The selected shock absorber kit includes an air damper. The air damper can adjust the internal air pressure to meet different vibration isolation requirements and adapt to various working conditions from small vibrations to large impacts. This allows the excavator to adjust the damping effect of the shock absorber kit according to the actual situation when excavating soil with different hardness and looseness. At the same time, the air damper can work stably under extreme environmental conditions such as high temperature and low temperature to adapt to more complex and harsh construction environments. Furthermore, the air damper has high stiffness and stability and can always provide stable support and vibration isolation during long-term use. It is made of materials such as rubber and steel, which has high durability and fatigue resistance, and can reduce the frequency of maintenance and replacement. Overall, it can make the shock absorber kit more versatile, thereby ensuring that the excavator spraying equipment can be used on more construction sites. Attached Figure Description

[0020] The accompanying drawings are provided below to illustrate the preferred embodiments of this utility model, in order to aid in understanding the purpose and advantages of this utility model, wherein:

[0021] Figure 1 A schematic diagram of an excavator equipped with an excavator spraying system;

[0022] Figure 2 This is a schematic diagram of the shock absorption kit structure;

[0023] Figure 3 This is a schematic diagram of the nozzle structure;

[0024] Figure 4 This is a schematic diagram of the dust concentration detection device. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0026] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0027] Example 1:

[0028] This embodiment provides a spraying system for excavators. The spraying system is installed on the excavator to activate the spraying after the dust concentration is detected to exceed a certain value, thereby achieving the dust reduction effect.

[0029] The sprinkler system mainly includes a water storage unit 1, a water volume control kit 2, a water supply pipe 6, sprinkler heads 4, and other sprinkler-related components, as well as a dust concentration detection device 5, a detection host 3, a shock-absorbing kit 7, and other dust detection-related components. The water volume control kit 2 can be a single water pump 202 structure, meaning the water volume is controlled solely by the water pump 202; alternatively, it can be a combination kit of a water pump 202 and a valve 201, where the water pump 202 provides continuous water supply, and the valve 201 controls the water flow rate.

[0030] like Figure 1As shown, the water storage unit 1, water volume control kit 2, and detection host 3 are installed on the main body A01 of the excavator, while at least one set of nozzles 4 and at least one set of dust concentration detection devices 5 are installed on the excavator's boom A02. When the dust situation at the construction site where the excavator is located is relatively serious, nozzles 4 and dust concentration detection devices 5 can be installed at multiple points on the forearm A02-1 and boom A02-2 of the boom A02, so that the detection range of the dust concentration detection device 5 is larger and the coverage of the nozzles 4 is wider, thereby effectively carrying out dust suppression. In the usage scenario of the excavator in this embodiment, the total amount of dust is relatively small, and the dust is usually generated by the interaction between the bucket and the target material. Since the forearm A02-1 is directly connected to the bucket, it can come into contact with the generated dust first. Therefore, preferably, only one set of nozzles 4 and one set of dust concentration detection devices 5 need to be installed at the forearm A02-1 where dust is most easily detected. A set of spray nozzles 4 is connected to the water control kit 2 and the water storage unit 1 via a water supply pipe 6. This allows the water control kit 2 to draw water from the water storage unit 1 and deliver it to the spray nozzles 4 via the water supply pipe 6 before spraying. A set of dust concentration detection devices 5 is connected to the detection host 3 to provide real-time feedback on the detected dust concentration. The detection host 3 is also connected to the water control kit 2. When the dust concentration reaches a threshold, the detection host 3 adjusts the water supply of the water control kit 2. In this embodiment, the water control kit 2 includes a water pump 202 and a valve 201. The detection host 3 is connected to both the valve 201 and the water pump 202, controlling their opening and closing. Alternatively, the detection host 3 can control the opening and closing of the valve 201 based on the dust concentration detection results to control the water supply. In cases of high dust levels, increasing the spray volume can ensure effective dust suppression.

[0031] During excavator operation, the bucket will repeatedly come into contact with and collide with materials such as sand, gravel, and soil, generating irregular impacts and vibrations. If the dust concentration detection device 5 is directly fixed to the excavator arm A02, the stress generated by these impacts and vibrations will directly act on the connecting structure, potentially causing damage to the connecting structure after long-term use. This could lead to the connecting structure being damaged during excavator operation, and the dust concentration detection device 5 falling off and being damaged. Furthermore, these impacts and vibrations will also force the dust concentration detection device 5 to shake significantly, affecting the accuracy of its concentration detection. The impacts and vibrations may even damage its internal parts, ultimately resulting in inaccurate dust detection. In this embodiment, the dust concentration detection device 5 is installed on the excavator arm A02 using a shock-absorbing kit 7. This shock-absorbing kit 7 absorbs the impact vibrations transmitted from the excavator arm A02, minimizing the impact of these vibrations on the dust concentration detection device 5, making the dust concentration detection results more accurate. This, in turn, ensures more accurate timing and control of the spraying system's dust suppression measures.

[0032] Preferably, such as Figure 2 As shown, the shock absorption kit 7 includes an air damping shock absorber 701. The dust concentration detection device 5 is mounted on the excavator arm A02 via the air damping shock absorber 701. A common commercially available air damping shock absorber 701 includes components such as a piston, piston rod, cylinder, and air chamber, thus it can adjust the internal air pressure to meet different vibration isolation requirements, adapting to various working conditions from minor vibrations to large impacts. When used in this spray system, the excavator can adjust the shock absorption effect of the shock absorption kit 7 according to the actual situation when excavating soil of different hardness and looseness, ensuring the normal operation of the dust concentration detection device 5.

[0033] Preferably, such as Figure 2 As shown, the air damping shock absorber 701 has mounting plates 702 at both its top and bottom. The two sets of mounting plates 702 are fixedly connected to the excavator arm A02 and the dust concentration detection device 5 respectively via screw assembly 8. The screw assembly 8 includes several mounting through holes on the mounting plate 702, several screws 801 on the excavator arm A02 and the dust concentration detection device 5, several nuts 802, and several sets of damping pads 803 fitted onto the screws 801. In this embodiment, four mounting through holes are evenly distributed near the edge of the mounting plate 702, and therefore four screws 801 and four sets of nuts 802 adapted to the screws 801 are respectively arranged on the excavator arm A02 and the dust concentration detection device 5. Figure 2As shown, after the screw assembly 8 is fixed on the mounting plate 702, a pair of shock-absorbing rubber pads 803 are placed between the excavator arm A02 or the dust concentration detection device 5 and the mounting plate 702 on each screw 801, and another pair of rubber pads are placed between the nut 802 and the mounting plate 702. This structure ensures a firm connection while absorbing some of the stress transmitted from vibration and impact through the shock-absorbing rubber pads 803, preventing the nut 802 from gradually loosening and falling off the screw 801, and ensuring the firmness of the dust concentration detection device 5 on the excavator arm A02 during long-term use.

[0034] Preferably, such as Figure 1 As shown, the nozzle 4 and the dust concentration detection device 5 are mounted on the same section of the excavator arm A02. This structure ensures that the dust concentration detection device 5 can detect the dust concentration near the nozzle 4 to verify the dust suppression situation, thereby allowing for faster and more accurate adjustment of the water supply and spray volume of the water control kit 2.

[0035] Preferably, the spray system also includes a mobile controller, which is linked to the detection host 3 and used to control and adjust the dust detection concentration threshold in the detection host 3. The mobile controller can be a mobile device such as a mobile phone or remote control, so that construction personnel can remotely and uniformly control the threshold related to dust concentration in the detection host 3 to carry out dust suppression work in a timely manner in different construction environments.

[0036] Preferably, such as Figure 1 As shown, the water supply pipe 6 is a flexible hose. Therefore, it can generate sufficient deformation margin to accommodate rotation between the boom A02-2 and the forearm A02-1 in the excavator boom A02.

[0037] Preferably, such as Figure 3 As shown, the nozzle 4 is a movable atomizing nozzle 401, which includes a nozzle drive unit and an atomizing nozzle body. The nozzle drive unit can drive the atomizing nozzle body to rotate, etc., so that the coverage area of ​​the nozzle 4 is larger; at the same time, the atomizing nozzle body can disperse the output water into smaller particles to achieve a better dust aggregation effect, thereby having a better settling effect.

[0038] Preferably, such as Figure 4 As shown, the dust concentration detection device 5 includes a laser scattering detector for detecting the ambient dust concentration. This type of dust concentration detection device 5 has lower requirements for vibration in the operating environment; therefore, the use of a vibration damping kit 7 further ensures the normal operation of the dust concentration detection device 5 and results in higher accuracy of the dust concentration detection results.

[0039] Example 2:

[0040] This embodiment provides an excavator, such as Figure 1 As shown, the excavator spraying system of Embodiment 1 is installed on it.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A spraying system for an excavator, installed on an excavator for dust suppression, characterized in that, Includes: A water storage unit (1), a water volume control kit (2), and a detection host (3) are installed on the main body (A01) of the excavator, and at least one set of nozzles (4) and at least one set of dust concentration detection devices (5) are installed on the excavator arm (A02). The water storage unit (1), water control kit (2) and nozzle (4) are connected in sequence through water supply pipe (6); the dust concentration detection device (5) is installed on the excavator arm (A02) through shock absorption kit (7) and is connected to the detection host (3); at the same time, the detection host (3) is connected to the water control kit (2), and the detection host receives at least the detection signal from the dust concentration detection device (5) and sends the control signal to the water control kit (2).

2. The spraying system for excavators according to claim 1, characterized in that, The shock-absorbing kit (7) includes an air damping shock absorber (701), and the dust concentration detection device (5) is installed on the excavator arm (A02) through the air damping shock absorber (701).

3. A spraying system for excavators according to claim 2, characterized in that, The air damping shock absorber (701) is provided with mounting plates (702) at the top and bottom. The two sets of mounting plates (702) are fixedly connected to the excavator arm (A02) and the dust concentration detection device (5) respectively by screw assembly (8). The screw assembly (8) includes several mounting through holes opened on the mounting plate (702), several screws (801) provided on the excavator arm (A02) and the dust concentration detection device (5), several nuts (802), and several sets of shock-absorbing rubber pads (803) sleeved on the screws (801).

4. A spraying system for excavators according to claim 1, characterized in that, The nozzle (4) and the dust concentration detection device (5) are installed on the same section of the excavator arm (A02).

5. A spraying system for excavators according to claim 1, characterized in that, At least one set of the nozzles (4) and at least one set of the dust concentration detection devices (5) are installed on the boom (A02-1) of the excavator.

6. A spraying system for excavators according to claim 1, characterized in that, It also includes a mobile controller that is linked to the detection host (3) and sends at least a threshold adjustment signal to the detection host (3).

7. A spraying system for excavators according to claim 1, characterized in that, The water supply pipe (6) is a flexible hose.

8. A spraying system for excavators according to claim 1, characterized in that, The nozzle (4) is a movable atomizing nozzle (401), which includes a nozzle drive unit and an atomizing nozzle body.

9. A spraying system for excavators according to claim 1, characterized in that, The dust concentration detection device (5) includes a laser scattering detector for detecting the surrounding dust concentration.

10. An excavator, characterized in that, The device is equipped with a spray system for excavators as described in any one of claims 1 to 9.

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