Excavator

Abstract

The utility model provides an excavator which comprises a frame, a movable arm, an oil cylinder, a sliding way piece, a sliding piece and at least one covering piece, the movable arm is arranged on the rear side of the frame and hinged to the frame, the two ends of the oil cylinder are hinged to the frame and the movable arm respectively, and the sliding way piece is arranged between the frame and the movable arm, located above the oil cylinder and extends in the front-back direction; the sliding piece is arranged between the frame and the movable arm and is connected to the sliding way piece in a sliding mode in the front-back direction, the rear end of the sliding piece is connected to the movable arm, and each covering piece is connected to the side portion of the sliding piece so as to cover the oil cylinder together with the sliding piece and the sliding way piece. According to the excavator, the sliding part can be adjusted along with movement of the oil cylinder, the position of the covering part can be adjusted along with the state of the oil cylinder, the oil cylinder is effectively protected, and fire accidents caused by accumulation of sundries at the oil cylinder are prevented.

Description

Technical Field

[0001] This application relates to the field of protection technology for construction machinery, and more particularly to an excavator. Background Technology

[0002] In an excavator, the boom is located at the rear of the frame and is hinged to the frame. The two ends of the hydraulic cylinder are respectively hinged to the frame and the boom. When the hydraulic cylinder performs the extension and retraction action, it causes the boom to move up and down.

[0003] Because excavators operate under relatively harsh conditions, their hydraulic cylinders are prone to oil leakage. Furthermore, long-term outdoor operation or parking can cause debris such as fallen leaves to accumulate in the hydraulic cylinders. Under high temperatures, oil leakage can easily lead to fire accidents.

[0004] Existing technology includes an excavator safety device that provides protection by fixing a guardrail at the base of the boom. However, this method has certain drawbacks. Since the hydraulic cylinder is connected to the boom and moves during operation, the guardrail fixed to the frame cannot provide comprehensive protection for the cylinder. Therefore, improvements are necessary. Utility Model Content

[0005] This application provides an excavator in which the sliding parts and the cover can adjust their positions according to the state of the hydraulic cylinder as the hydraulic cylinder moves, effectively protecting the hydraulic cylinder and preventing fire accidents caused by debris accumulating at the hydraulic cylinder.

[0006] To achieve the above objectives, this application adopts the following technical solution:

[0007] This application provides an excavator, including a frame, a boom, and a hydraulic cylinder. The boom is located at the rear of the frame and hinged to the frame. The two ends of the hydraulic cylinder are respectively hinged to the frame and the boom. The excavator also includes:

[0008] The slide rail is located between the frame and the boom, above the hydraulic cylinder, and extends in the front-rear direction.

[0009] The sliding member is disposed between the frame and the boom, and is slidably connected to the slide rail in the front-rear direction, with the rear end of the sliding member connected to the boom.

[0010] At least one cover, each cover being connected to the side of the slider to cover the cylinder together with the slider and the slide rail.

[0011] As an optional implementation, the slide rail component further includes:

[0012] The main body plate, with its front end hinged to the frame;

[0013] Multiple slide sections are provided on the lower side of the main body plate, and the multiple slide sections are respectively arranged on the left and right sides of the main body plate. Each slide section has a slide rail for sliding components to slide on.

[0014] As an optional implementation, each slide section further includes:

[0015] A fixing plate is attached to the lower surface of the main body plate.

[0016] The guide rail extends in the front-to-back direction and is fixed to the fixing plate at intervals from the lower surface of the main body plate. The upper surface of the guide rail and the lower surface of the main body plate form a slide rail.

[0017] As an optional implementation, the slider further includes:

[0018] A skateboard, which is slidably mounted on a track;

[0019] The support plate is located at the rear end of the slide plate and is connected to the boom.

[0020] As an optional implementation, the lower surface of the main plate is provided with a plurality of first limiting protrusions, and the upper surface of the slide plate is provided with a second limiting protrusion. The second limiting protrusion abuts against the plurality of first limiting protrusions to limit the sliding distance of the slide plate.

[0021] As an optional implementation, the slider also includes a plurality of hooks disposed on the side of the slide plate for attaching the cover.

[0022] As an alternative implementation, the front end of the cover is connected to the vehicle frame or main body panel.

[0023] As an optional implementation, the edge of the cover support plate is connected to the support plate;

[0024] The cover is attached to the boom near the edge of the boom; and / or,

[0025] The cover is attached to the frame near the edge of the frame.

[0026] As an optional implementation, there are two covers, which are respectively disposed on the left and right sides of the slider.

[0027] As an alternative implementation, the cover is made of flexible fabric; or, the cover is made of tarpaulin.

[0028] This application provides an excavator in which a sliding component is located above the hydraulic cylinder, the sliding component is slidably connected to the sliding component in the front-to-back direction, the rear end of the sliding component is connected to the boom, and a cover is connected to the side of the sliding component. When the hydraulic cylinder performs a telescopic movement to cause the boom to pitch up and down, the sliding component telescopically moves along the sliding component, causing the cover to unfold or fold. In this way, the sliding component and the cover can adjust their position and state according to the state of the hydraulic cylinder to completely cover the hydraulic cylinder, effectively protecting the hydraulic cylinder and preventing fire accidents caused by debris accumulating at the hydraulic cylinder. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a partial schematic diagram of an excavator according to one embodiment of this application;

[0031] Figure 2 The mating relationship between the slide rail and the sliding member in an excavator according to one embodiment of this application. Figure 1 ;

[0032] Figure 3 This is a schematic diagram of a slide rail component in an excavator according to an embodiment of this application;

[0033] Figure 4 The mating relationship between the slide rail and the sliding member in an excavator according to one embodiment of this application. Figure 2 ;

[0034] Figure 5 This is a bottom view of the sliding plate in an excavator according to one embodiment of this application;

[0035] Figure 6 This is a schematic diagram of the hook portion in the sliding member of an excavator according to an embodiment of this application.

[0036] Explanation of reference numerals in the attached figures:

[0037] 100, Frame; 200, Boom; 400, Slide rail component; 410, Main body plate; 412, First limiting protrusion; 420, Slide rail section; 422, Fixing plate; 424, Guide rail; 426, Slide rail; 500, Sliding component; 510, Slide plate; 512, Second limiting protrusion; 514, Mounting groove; 520, Support plate; 530, Hook section; 532, Fixing column; 534, Hook; 600, Cover component. Detailed Implementation

[0038] Because excavators operate under relatively harsh conditions, their hydraulic cylinders are prone to oil leakage. Furthermore, long-term outdoor operation or parking can cause debris such as fallen leaves to accumulate in the hydraulic cylinders. Under high temperatures, oil leakage can easily lead to fire accidents.

[0039] Existing technology has developed a protective device for excavators, which provides protection by fixing a guardrail at the base of the boom. However, this method has certain drawbacks. Since the hydraulic cylinder is connected to the boom and moves during operation, the guardrail fixed to the frame cannot provide comprehensive protection for the cylinder.

[0040] To overcome the deficiencies in the prior art, this application provides an excavator in which the slide rail is located above the hydraulic cylinder, the sliding member is slidably connected to the slide rail in the front-to-back direction, the rear end of the sliding member is connected to the boom, and the cover is connected to the side of the sliding member. When the hydraulic cylinder performs a telescopic movement to cause the boom to pitch up and down, the sliding member telescopically moves along the slide rail and causes the cover to unfold or fold. In this way, the sliding member and the cover can adjust their position and state according to the state of the hydraulic cylinder to completely cover the hydraulic cylinder, effectively protect the hydraulic cylinder, and prevent fire accidents caused by debris accumulating at the hydraulic cylinder.

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0042] See Figure 1 , Figure 1 This is a partial schematic diagram of an excavator according to an embodiment of this application. This application provides an excavator that generally includes a frame 100, a boom 200, and a hydraulic cylinder (not shown). The boom 200 is disposed at the rear of the frame 100 and hinged to the frame 100. The two ends of the hydraulic cylinder are respectively hinged to the frame 100 and the boom 200. When the hydraulic cylinder performs a telescopic movement, it causes the boom 200 to pitch up and down.

[0043] Furthermore, the excavator may also include a slide rail 400, a sliding member 500, and at least one cover 600. The slide rail 400 is disposed between the frame 100 and the boom 200, above the hydraulic cylinder, and extends in the longitudinal direction. The sliding member 500 is disposed between the frame 100 and the boom 200, slidably connected to the slide rail 400 in the longitudinal direction, and its rear end is connected to the boom 200. Each cover 600 is connected to the side of the sliding member 500 to cover the hydraulic cylinder together with the sliding member 500 and the slide rail 400.

[0044] In this embodiment, the slide rail 400 is disposed between the frame 100 and the boom 200, above the hydraulic cylinder, and extends in the front-rear direction. Therefore, the slide rail 400 can cover at least part of the space above the hydraulic cylinder.

[0045] The sliding member 500 is slidably connected to the slide rail member 400 in the front-to-back direction. The rear end of the sliding member 500 is connected to the boom 200. In this way, the sliding member 500 and the slide rail member 400 can jointly cover the entire space above the oil cylinder to prevent fallen leaves and other debris from falling from above the oil cylinder to the oil cylinder, thereby protecting the oil cylinder.

[0046] Furthermore, since the slider 500 is slidably connected to the slide rail 400 in the front-back direction, and the rear end of the slider 500 is connected to the boom 200, when the hydraulic cylinder performs a telescopic action to cause the boom 200 to pitch, the boom 200 can drive the slider 500 to slide, so that the slider 500 is always above the hydraulic cylinder, thus fully protecting the hydraulic cylinder.

[0047] Furthermore, the cover 600 is connected to the side of the slider 500 to cover at least one side of the cylinder, preventing debris such as fallen leaves from falling onto the cylinder and thus protecting the cylinder.

[0048] The cover 600 can be made of a deformable flexible material. When the boom 200 moves away from the frame 100, the cover 600 can gradually unfold under the action of the slider 500. When the boom 200 moves closer to the frame 100, the cover 600 can gradually fold under the action of the slider 500. Therefore, in this embodiment, the cover 600 can also adjust its state according to the movement of the boom 200, providing comprehensive protection for the hydraulic cylinder.

[0049] Therefore, in this embodiment of the excavator, since the slide rail 400 is located above the hydraulic cylinder, the slide member 500 is slidably connected to the slide rail 400 in the front-to-back direction, the rear end of the slide member 500 is connected to the boom 200, and the cover member 600 is connected to the side of the slide member 500, when the hydraulic cylinder performs a telescopic movement, the slide member 500 and the cover member 600 can adjust their position and state according to the state of the hydraulic cylinder to completely cover the hydraulic cylinder, effectively protect the hydraulic cylinder, and prevent fire accidents caused by debris accumulating at the hydraulic cylinder.

[0050] See Figure 2 , Figure 2 The mating relationship between the slide rail and the sliding member in an excavator according to one embodiment of this application. Figure 1 In some embodiments, the slide member 400 may further include a main body plate 410 and a plurality of slide sections 420. The front end of the main body plate 410 is hinged to the frame 100. The plurality of slide sections 420 are disposed on the lower side of the main body plate 410, and the plurality of slide sections 420 are respectively arranged on the left and right sides of the main body plate 410, and each slide section 420 has a slide rail 426 formed on it for the sliding member 500 to slide.

[0051] In some specific embodiments, the main body plate 410 is arranged horizontally, and the main body plate 410 can be designed as a rectangle. The length direction of the main body plate 410 is arranged along the front-to-back direction to effectively protect the oil cylinder.

[0052] Since the rear end of the slider 500 is rigidly connected to the boom 200, the extension angle of the slider 500 changes with the boom 200 when the boom 200 rotates. Furthermore, since the front end of the main body plate 410 is hinged to the frame 100, the main body plate 410 can adjust the corresponding angle between itself and the slider 500 by rotating around the hinge, ensuring that the slider 500 can slide smoothly through the slide rail 400.

[0053] In this embodiment, multiple slide rails 420 are disposed on the lower side of the main body plate 410, and the multiple slide rails 420 are respectively arranged on the left and right sides of the main body plate 410. Each slide rail 420 has a slide rail 426 for sliding the slider 500. The left and right edges of the slider 500 can respectively pass through the slide rail 426 so that the slider 500 can slide along the slide rail 426, realizing the sliding connection between the slider 500 and the slide rail 400.

[0054] In some specific embodiments, the number of slide sections 420 can be set to an even number, such as two or four, so that the slide sections 420 can be symmetrically arranged on the left and right sides of the main body plate 410 to make the sliding member 500 more balanced.

[0055] In some specific embodiments, the slide rail 426 of each slide section 420 can be opened towards the center of the main body plate 410 in the left and right directions, so that the sliding member 500 can pass through the slide rail 426 of the left and right slide sections 420 at the same time.

[0056] See Figure 3 , Figure 3This is a schematic diagram of a slide rail component in an excavator according to one embodiment of this application. In some embodiments, each slide rail portion 420 may further include a fixing plate 422 and a guide rail 424. The fixing plate 422 is fixed to the lower surface of the main body plate 410. The guide rail 424 extends in the front-rear direction and is fixed to the fixing plate 422 at a distance from the lower surface of the main body plate 410, and a slide rail 426 is formed between the upper surface of the guide rail 424 and the lower surface of the main body plate 410.

[0057] In this embodiment, each slide section 420 is formed after being installed by a fixing plate 422 and a guide rail 424. This method is simple, convenient, and highly operable, eliminating the need to design a special mold for forming the slide rail 426 on the main body plate 410, thus saving costs.

[0058] Specifically, in this embodiment, the upper end of the fixing plate 422 is fixed to the lower surface of the main body plate 410 by fasteners, and the guide rail 424 is disposed inside the fixing plate 422 and installed on the fixing plate 422 by fasteners. The upper surface of the guide rail 424 and the lower surface of the main body plate 410 are spaced apart to form a slide rail 426 for the sliding member 500 to pass through, so as to realize a sliding connection.

[0059] Furthermore, in each slide section 420, there can be one or two fixing plates 422. When there is one fixing plate 422, the length of the fixing plate 422 should be set as long as possible to match the length of the guide rail 424 and better fix the guide rail 424. When there are two fixing plates 422, the two fixing plates 422 can be arranged at intervals, and the two ends of the guide rail 424 can be fixed to the two fixing plates 422 respectively, which can also achieve a good fixing effect.

[0060] See Figures 1 to 3 In some embodiments, the slider 500 may further include a slide plate 510 and a support plate 520. The slide plate 510 is slidably disposed on the slide rail 426. The support plate 520 is disposed at the rear end of the slide plate 510 and connected to the boom 200.

[0061] In this embodiment, the slide plate 510 is slidably mounted on the slide rail 426, and the support plate 520 is located at the rear end of the slide plate 510 and connected to the boom 200. When the hydraulic cylinder performs a telescopic movement to cause the boom 200 to pitch, the rotational force is transmitted to the slide plate 510 through the support plate 520, so that the slide plate 510 slides within the slide rail 426.

[0062] In some specific embodiments, the support plate 520 may be configured to be approximately perpendicular to the boom 200, which facilitates the boom 200 to transmit rotational power to the support plate 520, and then to the slide plate 510.

[0063] See Figure 4 , Figure 4The mating relationship between the slide rail and the sliding member in an excavator according to one embodiment of this application. Figure 2 In some embodiments, the lower surface of the main body plate 410 is provided with a plurality of first limiting protrusions 412, and the upper surface of the slide plate 510 is provided with a second limiting protrusion 512. The second limiting protrusion 512 abuts against the plurality of first limiting protrusions 412 to limit the sliding distance of the slide plate 510.

[0064] Since the slide rail 426 is formed on the lower side of the main body plate 410, the slide plate 510 is slidably disposed on the slide rail 426. Therefore, the main body plate 410 is located above the slide plate 510. The lower surface of the main body plate 410 is provided with a plurality of first limiting protrusions 412, and the upper surface of the slide plate 510 is provided with a second limiting protrusion 512. In this way, during the sliding process of the slide plate 510, the first limiting protrusions 412 can contact the second limiting protrusions 512 to limit the sliding distance of the slide plate 510.

[0065] Specifically, the first limiting protrusion 412 can be set to two, and the two first limiting protrusions 412 can be respectively set at the front and rear ends of the main body plate 410. This can both limit the sliding distance of the skateboard 510 and maximize the sliding stroke of the skateboard 510.

[0066] In addition, the position design of the two first limit protrusions 412 should also take into account the stroke of the hydraulic cylinder (i.e. the rotation stroke of the boom 200) to avoid affecting the rotation of the boom 200.

[0067] See Figure 5 and Figure 6 , Figure 5 This is a bottom view of the sliding plate in an excavator according to one embodiment of this application. Figure 6 This is a schematic diagram of a hook portion in a slider of an excavator according to one embodiment of this application. In some embodiments, the slider 500 may further include a plurality of hook portions 530, which are disposed on the side of the slide plate 510 for attaching the cover 600.

[0068] Specifically, each hook portion 530 may also include a hook 534 and a fixing post 532. The fixing post 532 is fixed to the side of the slide plate 510, and the hook 534 is disposed at the bottom of the fixing post 532 for hanging the cover 600.

[0069] Furthermore, a mounting groove 514 is formed on the side edge of the lower surface of the slide plate 510, and the fixing posts 532 of the multiple hook parts 530 are fixed in the mounting groove 514 at intervals. This method is simple and convenient, and facilitates disassembly and adjustment of the position of the hook parts 530.

[0070] In some embodiments, the front end of the cover 600 is connected to the frame 100 or the main body plate 410. Since the frame 100 and the main body plate 410 are relatively stationary and located in front of the slide plate 510, connecting the front end of the cover 600 to the frame 100 or the main body plate 410 ensures that the front side of the cover 600 covers the front side of the hydraulic cylinder.

[0071] In some embodiments, the cover 600 is connected to the support plate 520 near its edge. Since the support plate 520 and the slide plate 510 have different extending directions, the cover 600 needs to be adapted to the extending direction of the support plate 520. The cover 600 is connected to the corresponding edge of the support plate 520, which helps to form an overall cover over the side of the slide plate 510.

[0072] In some specific embodiments, the cover 600 can be connected to the corresponding edge of the support plate 520 by means of fasteners, magnets, etc.

[0073] In some embodiments, the cover 600 is connected to the boom 200 near its edge. Specifically, the cover 600 can be connected to the corresponding edge of the boom 200 by means of fasteners, magnets, or the like.

[0074] In some embodiments, the cover 600 is connected to the frame 100 near its edge. Specifically, the cover 600 can be connected to the corresponding edge of the frame 100 by means of fasteners, magnets, or the like.

[0075] Through the above connection, the edge of the cover 600 is perfectly matched with the skateboard 510, the support plate 520, the boom 200 and the frame 100, so that the cover 600 can completely cover the side of the skateboard 510, improving the comprehensiveness of the coverage.

[0076] In some embodiments, there are two covers 600, which are respectively disposed on the left and right sides of the slider 500.

[0077] With this design, the slide rail 400 and the sliding part 500 form a shield at the top of the oil cylinder, and the two cover parts 600 form shields on both sides of the oil cylinder. This completely shields the oil cylinder and prevents debris from accumulating at the oil cylinder from the left and right sides.

[0078] In some embodiments, the cover 600 is made of a flexible fabric, such as tarpaulin, which makes it easy for the cover 600 to fold or unfold as it moves with the skateboard 510, providing some blocking effect, and is low in cost and easy to replace.

[0079] In some embodiments, the cover 600 is made of tarpaulin. Tarpaulin is waterproof and moisture-proof, low in cost, easy to replace, and suitable for the operating conditions of excavators.

[0080] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," "some embodiments," etc., mentioned in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0081] Generally speaking, terms should be understood at least in part by their use in context. For example, at least in part by context, the term "one or more" as used in the text can be used to describe any feature, structure, or characteristic of the singular meaning, or a combination of features, structures, or characteristics of the plural meaning. Similarly, at least in part by context, terms such as "a" or "the" can also be understood to convey either singular or plural usage.

[0082] It should be readily understood that the terms “on,” “above,” and “on top of” in this application should be interpreted in the broadest possible sense, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0083] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of devices in use or operation other than those shown in the figures. Devices may have other orientations, and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0084] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. 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 application.

Claims

1. An excavator characterized by comprising: The excavator comprises a vehicle frame, a boom, and a cylinder, the boom is arranged at the rear side of the vehicle frame and is hinged to the vehicle frame, two ends of the cylinder are respectively hinged to the vehicle frame and the boom, and the excavator further comprises: a slide member arranged between the vehicle frame and the boom, above the cylinder, and extending in the front-rear direction; a sliding member arranged between the vehicle frame and the boom, slidingly connected to the slide member in the front-rear direction, and the rear end of the sliding member being connected to the boom; at least one cover member, each of the cover members being connected to the side of the sliding member to jointly cover the cylinder with the sliding member and the slide member.

2. The excavator of claim 1, wherein, The slide member further comprises: a main plate, the front end of the main plate being hinged to the vehicle frame; a plurality of slide portions, the plurality of slide portions being arranged on the lower side of the main plate, and the plurality of slide portions being respectively arranged on the left and right sides of the main plate, and each of the slide portions being formed with a slide rail for the sliding member to slide.

3. The excavator of claim 2, wherein, Each of the slide portions further comprises: a fixing plate, the fixing plate being fixed to the lower surface of the main plate; a guide rail, the guide rail extending in the front-rear direction and being fixed to the fixing plate in a spaced manner with the lower surface of the main plate, and the upper surface of the guide rail and the lower surface of the main plate forming the slide rail.

4. The excavator of claim 2, wherein, The sliding member further comprises: a slide plate, the slide plate being slidably arranged in the slide rail; a support plate, the support plate being arranged at the rear end of the slide plate and being connected to the boom.

5. The excavator according to claim 4, wherein the lower surface of the main plate is provided with a plurality of first limiting protrusions, and the upper surface of the slide plate is provided with second limiting protrusions, the second limiting protrusions being in abutment with the plurality of first limiting protrusions to limit the sliding distance of the slide plate.

6. The excavator of claim 4, wherein, The sliding member further comprises: a plurality of hook portions, the plurality of hook portions being arranged on the side of the slide plate to hang the cover member.

7. The excavator according to claim 4, wherein the front end of the cover member is connected to the vehicle frame or the main plate.

8. The excavator according to claim 4, wherein the edge of the cover member close to the support plate is connected to the support plate; the edge of the cover member close to the boom is connected to the boom; and / or the edge of the cover member close to the vehicle frame is connected to the vehicle frame.

9. The excavator according to any one of claims 1 to 8, wherein the cover member is two, and the two cover members are respectively arranged on the left and right sides of the sliding member.

10. The excavator according to any one of claims 1 to 8, wherein the cover member is made of flexible cloth; or the cover member is made of oilcloth.

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