Cantilever mechanism for excavator

Abstract

The utility model belongs to the technical field of excavators, and particularly relates to a cantilever mechanism for an excavator, which comprises an excavator body with a cantilever, the top end of the excavator body is fixedly connected with a water storage tank, and when the excavator body excavates, a spray head on the excavator body can be driven by the action of the cantilever to synchronously spray water mist for dust fall. In the dust falling process, an electromagnetic block can be started at regular time through a time controller, so that the electromagnetic block and a magnetic block attract each other, at the moment, a soft filter screen can be pulled towards a spray head, then the electromagnetic block is disconnected, the soft filter screen rebounds to the original position, shaking can be conducted through bounce force in the rebounding process, dust particles adhering to the soft filter screen are shaken off, and therefore the soft filter screen is cleaned at regular time; when the spray head is damaged after long-term use, the connecting ring can be screwed to be taken down from the water spraying cylinder for quick replacement, and the effects that the spray head is shielded and filtered through the soft filter screen, and meanwhile, the spray head can be automatically cleaned to be kept in a dredging state are effectively achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of excavators, and in particular relates to a cantilever mechanism for an excavator. Background Art

[0002] The cantilever structure of the excavator is mainly composed of the cantilever, cantilever ear plate, bucket hydraulic cylinder and other parts. The right side of the cantilever is hinged to the boom, and the left end is hinged to the bucket. The cantilever ear plate is welded on the upper side of the cantilever, which is used to install the cylinder body of the bucket hydraulic cylinder. The front side of the cantilever is also equipped with a gas transmission mechanism, which is connected to the boom.

[0003] The specification of Chinese patent CN220696229U discloses a dust suppression device on an excavator boom, including a telescopic mechanism arranged side by side with the hydraulic rod of the excavator boom, a water tank connected to the water inlet of the telescopic mechanism, and a spray pipe connected to the water outlet of the telescopic mechanism; the spray pipe is equipped with multiple nozzles; the telescopic mechanism includes a sleeve, a piston arranged inside the sleeve, and a push rod plugged into the sleeve; one end of the push rod is fixedly connected to the piston, and the other end is connected to the same pin shaft with one end of the hydraulic rod; both ends of the sleeve are provided with a water inlet and a water outlet, and a one-way valve is provided at the water inlet and the water outlet. The utility model drives the telescopic mechanism to reciprocate through the hydraulic rod, and uses a one-way valve to pump water. It can spray water mist when the boom moves, and stop spraying when the boom stops moving. Combined with the mobility and flexibility of the excavator, a uniform 45° angle spraying method is adopted to increase the spraying area, save water, and effectively suppress dust while improving the dust suppression effect.

[0004] The above-mentioned device adopts a technical means of uniformly spraying at a 45° angle on the dust reduction device to increase the spraying area. However, when using the above-mentioned device, the spray head is in a wet state after spraying water, and dust will be adsorbed on the spray head to block its assembly, affecting the dust reduction problem. The existing dust reduction device is not provided with a structure for automatically clearing the spray head. Therefore, a new type of cantilever mechanism for excavators is needed to improve the above-mentioned device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model provides a cantilever mechanism for an excavator, which has the advantage of automatically clearing and cleaning the sprinkler head at regular intervals during dust reduction, and solves the problem of dust adsorbed on the sprinkler head and clogging its assembly.

[0006] In order to achieve the above-mentioned purpose of automatically clearing and cleaning the sprinkler head, the utility model provides the following technical solutions: an excavator cantilever mechanism, comprising an excavator body with a cantilever, the top of the excavator body is fixedly connected to a water storage tank, a side wall of the cantilever away from the water storage tank is fixedly connected to a water spray barrel, the water spray barrel is connected to the water storage tank through a spray pipe, and a cleaning component is installed at one end of the water spray barrel away from the spray pipe;

[0007] The cleaning component includes a nozzle detachably connected to a water spray barrel, a connector threadedly connected to one end of the nozzle away from the water spray barrel, a soft filter fixedly connected to one end of the connector away from the nozzle, a magnetic sheet fixedly connected to the middle of the soft filter, a sealing chamber fixedly connected to the middle of one end of the nozzle close to the soft filter, a battery installed in the sealing chamber, an electromagnetic block fixedly connected to the side end of the sealing chamber, the magnetic sheet and the electromagnetic block are attracted to each other, and the electromagnetic block is electrically connected to the battery.

[0008] Furthermore, a connecting ring is fixedly connected to one end of the nozzle close to and away from the soft filter screen, a surface of the water spray tube close to the connecting ring is designed in a threaded ring shape, and the connecting ring and the water spray tube are threadedly connected via the threaded ring.

[0009] Furthermore, a filter assembly is installed in the water tank, and the filter assembly includes a filter screen installed on the inner wall of the water tank, and the filter screen is designed to be sloped.

[0010] Furthermore, slide grooves are symmetrically opened on the inner wall of the water tank, and waterproof electric slide rails are fixedly connected in the slide grooves.

[0011] Furthermore, a scraping brush is slidably connected between the two electric slide rails via a slider, and the scraping brush conflicts with the filter screen.

[0012] Furthermore, a sewage outlet corresponding to the bottom of the filter screen is opened at the side end of the excavator body, and a sealing plug is embedded in the sewage outlet.

[0013] Furthermore, the top of the water storage tank is connected to an external water source through a water pipe.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. When the utility model is in use, by setting a cleaning component, when the excavator body is digging, the action of the cantilever can drive the nozzle above to synchronously spray water mist for dust reduction, and during the dust reduction, the electromagnetic block can be turned on at a fixed time by the time controller, so that the electromagnetic block and the magnetic sheet are attracted to each other. At this time, the soft filter can be pulled toward the nozzle, and then the electromagnetic block is disconnected, and the soft filter rebounds to its original position. During the rebound process, it can be shaken by the rebound force to shake off the dust particles adhered to it, so as to regularly clean the soft filter. When the nozzle is damaged after long-term use, the connecting ring can be twisted to remove it from the water spray barrel for quick replacement, which effectively achieves the effect of blocking and filtering the nozzle through the soft filter, and at the same time, it can automatically clean it to keep it in a clear state.

[0016] 2. When the utility model is in use, by setting a filter screen and a scraper brush, water is injected into the interior from the top of the water tank through a water pipe before spraying water, so that impurities mixed in the water are filtered through the filter screen to avoid clogging of the nozzle. After the water tank is full, the water injection can be stopped, and the sealing plug is opened at this time, and then the electric slide rail is turned on to drive the scraper brush to move back and forth, and the impurities filtered on the filter screen are scraped to the sewage outlet for discharge, which effectively achieves the effect of filtering the water source and automatically cleaning the impurities regularly to avoid clogging of the inner wall of the nozzle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the axonometric structure of the excavator of the utility model;

[0019] Figure 2 This is a schematic diagram of the installation structure of the nozzle of the utility model;

[0020] Figure 3 This is a schematic diagram of the structure of the soft filter of the utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the nozzle of the utility model;

[0022] Figure 5 It is a schematic diagram of the internal structure of the water storage tank of the utility model.

[0023] In the figure: 1. excavator body; 2. cantilever; 3. water tank; 4. water spray barrel; 5. spray pipe; 6. cleaning component; 601. nozzle; 602. connector; 603. soft filter; 604. magnetic sheet; 605. electromagnetic block; 606. sealing chamber; 7. filter component; 701. filter screen; 702. chute; 703. scraper brush; 704. sewage outlet; 705. sealing plug; 8. connecting ring; 9. threaded ring. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-4The utility model provides a technical solution: a cantilever mechanism for an excavator, comprising an excavator body 1 with a cantilever 2, a water storage tank 3 being fixedly connected to the top of the excavator body 1, a water spraying tube 4 being fixedly connected to a side wall of the cantilever 2 away from the water storage tank 3, the water spraying tube 4 being connected to the water storage tank 3 through a spraying pipe 5, and a cleaning component 6 being installed at one end of the water spraying tube 4 away from the spraying pipe 5;

[0026] The cleaning component 6 includes a nozzle 601 detachably connected to the water spray barrel 4, a connector 602 is threadedly connected to one end of the nozzle 601 away from the water spray barrel 4, a soft filter 603 is fixedly connected to the one end of the connector 602 away from the nozzle 601, a magnetic sheet 604 is fixedly connected to the middle of the soft filter 603, a sealing chamber 606 is fixedly connected to the middle of one end of the nozzle 601 close to the soft filter 603, a battery is installed in the sealing chamber 606, an electromagnetic block 605 is fixedly connected to the side end of the sealing chamber 606, the magnetic sheet 604 and the electromagnetic block 605 are attracted to each other, and the electromagnetic block 605 is electrically connected to the battery, a connecting ring 8 is fixedly connected to one end of the nozzle 601 close to the soft filter 603, a surface of the water spray barrel 4 close to the connecting ring 8 is designed in the shape of a threaded ring 9, and the connecting ring 8 is threadedly connected to the water spray barrel 4 through the threaded ring 9, a time controller is fixedly connected to the water spray barrel 4, and the time controller is electrically connected to the electromagnetic block 605.

[0027] By setting up the cleaning component 6, when the excavator body 1 is in the process of excavation, the action of the cantilever 2 can drive the nozzle 601 above to synchronously spray water mist for dust reduction, and during the dust reduction, the electromagnetic block 605 can be turned on at a fixed time by the time controller, so that the electromagnetic block 605 and the magnetic sheet 604 are attracted to each other. At this time, the soft filter 603 can be pulled toward the nozzle 601, and then the electromagnetic block 605 is disconnected, and the soft filter 603 rebounds to its original position. During the rebound process, it can be shaken by the rebound force to shake off the dust particles adhered to it, so as to regularly clean the soft filter 603. When the nozzle 601 is damaged after long-term use, the connecting ring 8 can be twisted to remove it from the water spray barrel 4 for quick replacement, so as to effectively achieve the effect of blocking and filtering the nozzle 601 through the soft filter 603, and at the same time, it can automatically clean it to keep it in a clear state.

[0028] like Figure 1 and Figure 5 As shown, a filter assembly 7 is installed in the water tank 3, and the filter assembly 7 includes a filter screen 701 installed on the inner wall of the water tank 3, and the filter screen 701 is designed in a slope shape. The inner wall of the water tank 3 is symmetrically opened with slide grooves 702, and a waterproof electric slide rail is fixedly connected in the slide groove 702. A scraper brush 703 is slidably connected between the two electric slide rails through a slider, and the scraper brush 703 is in conflict with the filter screen 701. A sewage outlet 704 corresponding to the bottom of the filter screen 701 is opened on the side end of the excavator body 1, and a sealing plug 705 is embedded in the sewage outlet 704. The top of the water tank 3 is connected to an external water source through a water pipe.

[0029] By setting the filter screen 701 and the scraper brush 703, before spraying water, water is injected into the water tank 3 from the top through the water pipe, so that the impurities mixed in the water are filtered through the filter screen 701 to avoid clogging of the nozzle 601. After the water tank 3 is full, the water injection can be stopped. At this time, the sealing plug 705 is opened, and then the electric slide rail is turned on to drive the scraper brush 703 to move back and forth, and the impurities filtered on the filter screen 701 are scraped to the sewage outlet 704 for discharge, thereby effectively filtering the water source and automatically removing impurities regularly to avoid clogging of the inner wall of the nozzle 601.

[0030] The working principle of the above embodiment is as follows: compared with the prior art, the device on the dust reduction cantilever is provided with a cleaning component 6. When the excavator body 1 is excavating, the action of the cantilever 2 can drive the nozzle 601 above to synchronously spray water mist for dust reduction, and during dust reduction, the electromagnetic block 605 can be turned on at a fixed time by the time controller, so that the electromagnetic block 605 and the magnetic sheet 604 are attracted to each other. At this time, the soft filter 603 can be pulled toward the nozzle 601, and then the electromagnetic block 605 is disconnected, and the soft filter 603 rebounds to its original position. During the rebound process, it can be shaken by the rebound force to shake off the dust particles adhered thereto, thereby regularly cleaning the soft filter 603. When the nozzle 601 is damaged due to long-term use, the connecting ring 8 can be twisted to remove it from the water spray barrel 4 for quick replacement, which is effective. The effect of blocking and filtering the nozzle 601 through the soft filter 603 and automatically cleaning it to keep it unblocked is achieved. Before spraying water, water is injected into the interior from the top of the water storage tank 3 through a water pipe, so that impurities in the water are filtered through the filter screen 701 to avoid clogging of the nozzle 601. After the water storage tank 3 is full, the water injection can be stopped. At this time, the sealing plug 705 is opened, and the electric slide rail is turned on to drive the scraper brush 703 to move back and forth, and the impurities filtered and retained on the filter screen 701 are scraped to the sewage outlet 704 for discharge, which effectively achieves the effect of filtering the water source and automatically cleaning impurities regularly, avoiding clogging of the inner wall of the nozzle 601, improving the practicality of the nozzle 601, and solving the problem that the dust reduction device in the prior art is not provided with an automatic unblocking structure for the sprinkler head.

[0031] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cantilever mechanism for an excavator, comprising an excavator body (1) with a cantilever (2), characterized in that: The top of the excavator body (1) is fixedly connected to a water storage tank (3); a side wall of the cantilever (2) away from the water storage tank (3) is fixedly connected to a water spray barrel (4); the water spray barrel (4) and the water storage tank (3) are connected via a spray pipe (5); a cleaning assembly (6) is installed at one end of the water spray barrel (4) away from the spray pipe (5); The cleaning component (6) comprises a nozzle (601) detachably connected to a water spray barrel (4); a connector (602) is threadedly connected to one end of the nozzle (601) away from the water spray barrel (4); a soft filter (603) is fixedly connected to one end of the connector (602) away from the nozzle (601); a magnetic sheet (604) is fixedly connected to the middle of the soft filter (603); a sealing chamber (606) is fixedly connected to the middle of one end of the nozzle (601) close to the soft filter (603); a battery is installed in the sealing chamber (606); an electromagnetic block (605) is fixedly connected to the side end of the sealing chamber (606); the magnetic sheet (604) and the electromagnetic block (605) are attracted to each other, and the electromagnetic block (605) is electrically connected to the battery.

2. The cantilever mechanism for an excavator according to claim 1, characterized in that: The nozzle (601) is fixedly connected to one end thereof which is close to and away from the soft filter screen (603). The surface of the water spray barrel (4) which is close to the connecting ring (8) is designed to be in the shape of a threaded ring (9), and the connecting ring (8) and the water spray barrel (4) are threadedly connected via the threaded ring (9).

3. The cantilever mechanism for an excavator according to claim 1, characterized in that: A filter assembly (7) is installed in the water storage tank (3), and the filter assembly (7) comprises a filter screen (701) installed on the inner wall of the water storage tank (3), and the filter screen (701) is designed to be sloped.

4. The cantilever mechanism for an excavator according to claim 1, characterized in that: The inner wall of the water storage tank (3) is symmetrically cut with slide grooves (702), and a waterproof electric slide rail is fixedly connected in the slide groove (702).

5. The cantilever mechanism for an excavator according to claim 4, characterized in that: A scraping brush (703) is slidably connected between the two electric slide rails via a slider, and the scraping brush (703) is in conflict with the filter screen (701).

6. The cantilever mechanism for an excavator according to claim 3, characterized in that: A sewage outlet (704) corresponding to the bottom of the filter screen (701) is excavated at the side end of the excavator body (1), and a sealing plug (705) is embedded in the sewage outlet (704).

7. The cantilever mechanism for an excavator according to claim 1, characterized in that: The top of the water storage tank (3) is connected to an external water source through a water pipe.

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