Protective cover, aftertreatment structure and working machine

Abstract

The utility model discloses a protective cover, postprocessor structure and engineering machinery, including the protection of cover framework and openable protection cover, the top of protection cover framework is equipped with the framework opening, the bottom of protection cover framework is equipped with the installation opening, the front end of protection cover framework is equipped with the framework front closing plate, be equipped with a plurality of front closing plate heat dissipation holes on the framework front closing plate, the rear end of protection cover framework is equipped with the framework rear closing plate, be equipped with the intercommunication opening on the framework rear closing plate, the left and right two ends of protection cover framework are equipped with the framework side closing plate respectively, openable protection cover set up in the framework opening, protection cover framework, the framework opening, openable protection cover are the door shape of left and right two ends downward bending, be equipped with a plurality of protection cover heat dissipation holes on openable protection cover, openable protection cover with the side edge of the left and right direction of framework opening is articulated through the hinge. The utility model discloses only need to open openable protection cover to carry out maintenance when maintaining.

Description

Technical Field

[0001] This utility model relates to the field of engineering machinery technology, and in particular to a protective cover, a post-processor structure, and engineering machinery. Background Technology

[0002] The development of underground mining equipment is driven by multiple factors, including deep mining, high-pressure safety requirements, cost constraints, technological innovation, and green transformation. With the implementation of the National IV emission standard for non-road vehicles, the development of underground mining equipment has shifted towards National IV engines with aftertreatment systems. Due to the limited space in underground operations, the aftertreatment system is typically located outside the engine hood. Furthermore, given the harsh environment of underground operations, designing a modular aftertreatment protective cover structure that facilitates disassembly and maintenance underground is a key development direction for underground mining equipment. The existing aftertreatment protective cover design is as follows: it is constructed from a single thin plate welded together, enclosing the aftertreatment system, with only a notch at the exhaust tailpipe for ventilation; the entire protective cover is directly fixed to the engine hood using mounting bolts, requiring the entire cover to be removed for maintenance; lifting points are provided on both sides.

[0003] Existing post-treatment protective cover solutions, as described above, have the following shortcomings:

[0004] 1. Because the after-processor is a high-temperature component, the maximum temperature can reach over 600℃. It is wrapped around the after-processor with a single thin plate and only has a hole at the exhaust tailpipe. This makes it impossible to dissipate heat from the after-processor. Heat radiation can easily cause high temperatures inside the cover, resulting in the sensor wiring harness being scorched and the reliability of use is insufficient.

[0005] 2. The post-processing cover is bolted to the machine cover. During maintenance, the entire cover needs to be removed. In the confined space underground, it is impossible to lift it, which requires a lot of manpower, reduces maintenance efficiency, increases the workload of maintenance personnel, and makes maintenance inconvenient.

[0006] 3. The protective cover is made of a single thin plate, which makes it difficult for maintenance personnel or drivers to observe the internal post-processing wiring harness or installation structure. This is not conducive to use and maintenance and has poor ergonomics. Utility Model Content

[0007] The purpose of this utility model is to provide a protective cover, a post-processor structure, and engineering machinery to solve the technical problems of insufficient reliability, poor maintenance convenience, and poor ergonomics of existing post-processor protective covers for underground mining equipment.

[0008] To achieve the above objectives, the present invention provides a protective cover, comprising a cover frame and an openable cover. The cover frame has a frame opening at the top and a mounting opening at the bottom. The front end of the cover frame has a front sealing plate with several heat dissipation holes. The rear end of the cover frame has a rear sealing plate with a connecting opening. The left and right ends of the cover frame each have a side sealing plate. The openable cover is disposed within the frame opening. The cover frame, the frame opening, and the openable cover are in a U-shape with downward bending at both ends. The openable cover has several heat dissipation holes. The openable cover is hinged to one side edge of the frame opening in the left and right directions via hinges, and the openable cover is connected to the other side edge of the frame opening in the left and right directions via openable cover mounting bolts.

[0009] Furthermore, the edge of the skeleton opening near the hinge is lower than the edge of the skeleton opening near the mounting bolt of the openable cover, and the edge of the openable cover near the hinge is lower than the edge of the openable cover near the mounting bolt of the openable cover.

[0010] Furthermore, the number of hinges between the openable cover and the frame opening is several, and the several hinges are distributed along the front-back direction. The number of openable cover mounting bolts between the openable cover and the frame opening is several, and the several openable cover mounting bolts are distributed along the front-back direction.

[0011] Furthermore, a plurality of hinge mounting nuts are welded to the side edge of the skeleton opening near the hinge, and a plurality of hinge mounting nuts are welded to the side edge of the openable cover near the hinge. The two ends of the hinge are respectively connected to the hinge mounting nuts on the skeleton opening and the openable cover via hinge mounting bolts.

[0012] Furthermore, the left and right end frame side sealing plates are provided with a number of side sealing plate heat dissipation holes, the outer side surfaces of the left and right end frame side sealing plates are provided with a number of frame reinforcing ribs, and the bottom edges of the left and right end frame side sealing plates are provided with a number of frame mounting bolts distributed along the front and back.

[0013] Furthermore, the front and rear edges of the skeleton opening are provided with a plurality of guide mounting plates, which are distributed sequentially along the extension path of the front and rear edges of the skeleton opening, and the front and rear edges of the openable cover rest on the plurality of guide mounting plates.

[0014] Furthermore, the inner wall of the openable cover is provided with cover reinforcing ribs, which extend from one edge to the other edge in the left-right direction of the openable cover; the cover frame is provided with cover lifting holes on both sides, and the bottom edge of the front sealing plate of the frame is provided with several frame mounting bolts distributed along the left and right sides, and the connecting opening penetrates downward through the rear sealing plate of the frame.

[0015] Furthermore, the openable cover is provided with two cover handles distributed along the front and back on the side near the openable cover mounting bolt. The two cover handles are located on the outer wall of the openable cover and above the openable cover mounting bolt.

[0016] This utility model also provides a post-processor structure, including a post-processor and a protective cover as described in any of the above technical solutions, wherein the protective cover covers the post-processor downwards.

[0017] This utility model also provides an engineering machinery, including an engineering machinery body, and a protective cover as described in any of the above technical solutions, or a post-processor structure as described in the above technical solutions, wherein the protective cover or the post-processor structure is installed on the cover of the engineering machinery body.

[0018] In summary, the application of the technical solution of this utility model has the following beneficial effects: The structure design of this utility model is reasonable. (1) By setting up a protective frame and an openable protective frame, the top of the protective frame is provided with a frame opening, the bottom of the protective frame is provided with an installation opening, the front end of the protective frame is provided with a frame front sealing plate, the frame front sealing plate is provided with several front sealing plate heat dissipation holes, the rear end of the protective frame is provided with a frame rear sealing plate, the frame rear sealing plate is provided with a connecting opening, and the left and right ends of the protective frame are respectively provided with frame side sealing plates; thus, when the protective cover covers the post-processor (such as a double-barrel post-processor), the edge of the installation opening can be installed on the machine cover of the engineering machinery, the connecting opening can be used to connect the post-processor with the outside of the protective cover, and the front sealing plate heat dissipation holes can facilitate the post-processor to dissipate heat to the outside. (2) An openable cover is installed inside the frame opening. The cover frame, frame opening, and openable cover are U-shaped with downward bending at both ends. The openable cover has several heat dissipation holes. The openable cover is hinged to one side edge of the frame opening in the left and right directions by a hinge, and the openable cover is connected to the other side edge of the frame opening in the left and right directions by an openable cover mounting bolt. Thus, when the openable cover mounting bolt is removed, the openable cover can be opened upward around the hinge to expose the frame opening, which facilitates maintenance of the post-processor. The heat dissipation holes facilitate heat dissipation from the post-processor. As can be seen from the above analysis, the cover frame and the openable cover of this utility model have heat dissipation holes on their surfaces for heat dissipation. At the same time, the post-processor wiring harness and installation structure inside the cover can be observed through the heat dissipation holes. Maintenance can be carried out by simply opening the openable cover, which improves the reliability and maintenance convenience of the cover and is ergonomically convenient. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the assembled structure of the openable protective cover of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the openable protective cover of this utility model after it is opened for maintenance;

[0021] Figure 3 This is a schematic diagram of the structure of the protective frame of the protective cover of this utility model;

[0022] Figure 4 This is a schematic diagram of the hinge structure of the protective cover of this utility model;

[0023] Figure 5 This is a schematic diagram of the structure of the openable protective cover of this utility model;

[0024] Explanation of reference numerals in the attached drawings: Shield frame (1), hinge (2), openable shield (3), frame mounting bolt (4), openable shield mounting bolt (5), guide mounting plate (6), hinge mounting nut (7); frame reinforcing rib (101), frame front sealing plate (102), front sealing plate heat dissipation hole (103), side sealing plate heat dissipation hole (104), frame rear sealing plate (105), frame opening (106), installation opening (107), connecting opening (108), frame side sealing plate (109); shield reinforcing rib (301), shield handrail (302), shield heat dissipation hole (303). Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, but this does not constitute a limitation on the scope of protection of the present utility model.

[0026] In this utility model, for clearer description, the following explanation is provided: The observer faces the attached... Figure 1 In this observation, the left side of the observer is designated as front, the right side as rear, the front of the observer as right, the rear of the observer as left, the top of the observer as up, and the bottom of the observer as down. It should be noted that the terms "front end," "rear end," "left side," "right side," "middle," "above," and "below" used in this document indicate the orientation or positional relationship based on the accompanying drawings. These are merely for the purpose of clearly describing the present invention and do not indicate or imply that the structure or component referred to must have a specific orientation or be constructed in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," "third," and "fourth" are used only for the purpose of clarity or simplification of description and should not be construed as indicating or implying relative importance or quantity.

[0027] See Figures 1 to 5This embodiment provides a protective cover, including a cover frame 1 and an openable cover 3. The cover frame 1 has a frame opening 106 at the top and a mounting opening 107 at the bottom. The front end of the cover frame 1 has a frame front sealing plate 102 with several front sealing plate heat dissipation holes 103. The rear end of the cover frame 1 has a frame rear sealing plate 105 with a connecting opening 108. The left and right ends of the cover frame 1 are respectively provided with frame side sealing plates 109. The openable cover 3 is disposed inside the frame opening 106. The cover frame 1, frame opening 106, and openable cover 3 are in the shape of a door with downward bending at both ends. The openable cover 3 has several cover heat dissipation holes 303. The openable cover 3 is hinged to one side edge of the frame opening 106 in the left and right directions by a hinge 2. The openable cover 3 is connected to the other side edge of the frame opening 106 in the left and right directions by an openable cover mounting bolt 5. Function: (1) By setting up a protective frame and an openable protective frame, the top of the protective frame is provided with a frame opening, the bottom of the protective frame is provided with an installation opening, the front end of the protective frame is provided with a frame front sealing plate, the frame front sealing plate is provided with several front sealing plate heat dissipation holes, the rear end of the protective frame is provided with a frame rear sealing plate, the frame rear sealing plate is provided with a connecting opening, and the left and right ends of the protective frame are respectively provided with frame side sealing plates; thus, when the protective cover covers the after-processor (such as a dual-barrel after-processor) downwards, the edge of the installation opening can be installed on the machine cover of the engineering machinery, the connecting opening can allow the after-processor to communicate with the outside of the protective cover, and the front sealing plate heat dissipation holes can facilitate the after-processor to dissipate heat to the outside. (2) An openable cover is installed inside the frame opening. The cover frame, frame opening, and openable cover are U-shaped with downward bending at both ends. The openable cover has several heat dissipation holes. The openable cover is hinged to one side edge of the frame opening in the left and right directions by a hinge, and the openable cover is connected to the other side edge of the frame opening in the left and right directions by an openable cover mounting bolt. Thus, when the openable cover mounting bolt is removed, the openable cover can be opened upward around the hinge to expose the frame opening, which facilitates maintenance of the post-processor. The heat dissipation holes facilitate heat dissipation from the post-processor. As can be seen from the above analysis, the cover frame and the openable cover of this utility model have heat dissipation holes on their surfaces for heat dissipation. At the same time, the post-processor wiring harness and installation structure inside the cover can be observed through the heat dissipation holes. Maintenance can be carried out by simply opening the openable cover, which improves the reliability and maintenance convenience of the cover and is ergonomically convenient.

[0028] Specifically, the edge of the frame opening 106 near the hinge 2 is lower than the edge of the frame opening 106 near the mounting bolt 5 of the openable cover, and the edge of the openable cover 3 near the hinge 2 is lower than the edge of the openable cover 3 near the mounting bolt 5. Function: This height difference allows for a larger operating space in the frame opening 106 when the openable cover 3 is opened.

[0029] Specifically, the number of hinges 2 between the openable cover 3 and the frame opening 106 is several, distributed along the front-to-back direction. The number of openable cover mounting bolts 5 between the openable cover 3 and the frame opening 106 is also several, distributed along the front-to-back direction. Function: One side of the openable cover is connected and fixed to the cover frame using two hinges. The other side is fixed to the cover frame using multiple openable cover mounting bolts 5 when not in use. When maintenance is not required, the openable cover is fixed with bolts, providing protection for post-processing. When maintenance is required, the mounting bolts can be removed to open the openable cover for maintenance. Preferably, the openable cover can be opened at an angle exceeding 180°, thus enabling the cover to provide protection for post-processing in harsh downhole environments while also facilitating downhole maintenance of the post-processor. Maintenance and disassembly can be performed quickly.

[0030] Specifically, several hinge mounting nuts 7 are welded to the edge of the frame opening 106 near the hinge 2, and several hinge mounting nuts 7 are welded to the edge of the openable cover 3 near the hinge 2. Both ends of the hinge 2 are connected to the hinge mounting nuts 7 on the frame opening 106 and the openable cover 3 respectively via hinge mounting bolts. Function: The hinge mounting nuts 7 facilitate the connection of both ends of the hinge 2 to the frame opening 106 and the openable cover 3 respectively.

[0031] Specifically, the left and right end frame side panels 109 are provided with several side panel heat dissipation holes 104, the outer surfaces of the left and right end frame side panels 109 are provided with several frame reinforcing ribs 101, and the bottom edges of the left and right end frame side panels 109 are provided with several frame mounting bolts 4 distributed along the front and back. Functions: The side panel heat dissipation holes 104 can be used for ventilation and heat dissipation; the frame reinforcing ribs 101 can increase the strength of the protective cover frame; the protective cover frame can be fixed to the hood of the engineering machinery by the several frame mounting bolts 4.

[0032] Specifically, several guide mounting plates 6 are provided on the front and rear edges of the frame opening 106. These guide mounting plates 6 are distributed sequentially along the extension path of the front and rear edges of the frame opening 106, and the front and rear edges of the openable cover 3 rest on these guide mounting plates 6. Function: The guide mounting plates on the cover frame ensure that the openable cover can be correctly installed on the cover frame without deformation.

[0033] Specifically, the inner wall of the openable protective cover 3 is provided with protective cover reinforcing ribs 301, which extend from one edge to the other in the left-right direction of the openable protective cover 3; the protective cover frame 1 has protective cover lifting holes on both sides, and the bottom edge of the frame front sealing plate 102 has several frame mounting bolts 4 distributed along the left and right sides, with the connecting opening 108 penetrating downward through the frame rear sealing plate 105. Function: The protective cover reinforcing ribs 301 increase the strength of the openable protective cover 3; the protective cover lifting holes provide lifting points on both sides of the protective cover, facilitating lifting when needed.

[0034] Specifically, the openable cover 3 has two cover handles 302 distributed along its front and back on one side near the openable cover mounting bolt 5. The two cover handles 302 are located on the outer wall of the openable cover 3 and above the openable cover mounting bolt 5. Function: The cover handles 302 facilitate the flipping of the openable cover 3.

[0035] This utility model also provides a post-processor structure, including a post-processor and a protective cover according to any of the above-mentioned technical solutions, with the protective cover facing downwards over the post-processor. Function: The protective cover protects the post-processor (e.g., a dual-cylinder post-processor). This utility model designs the post-processor protective cover as two modules: a protective frame and an openable cover. The two modules are connected by a hinge, thus enabling the protective cover to function as a protective device for post-processing in harsh downhole environments while also facilitating downhole maintenance and disassembly of the post-processor. Maintenance and disassembly can be quickly performed. Furthermore, mesh holes (i.e., heat dissipation holes) are provided on the surface of the protective cover for ventilation and heat dissipation, allowing observation of the interior of the protective cover.

[0036] This utility model also provides an engineering machinery, including the engineering machinery body, and a protective cover according to any of the above-mentioned technical solutions, or a post-processor structure according to the above-mentioned technical solutions. The protective cover or post-processor structure is installed on the hood of the engineering machinery body. Function: The protective cover or post-processor structure of this utility model can be applied to the design of post-processing protective covers for engineering machinery such as underground mining equipment (e.g., loaders). The cover frame is fixed to the hood with mounting bolts. Maintenance can be performed simply by opening the openable cover; if the cover is damaged, it can be directly replaced. This greatly improves the convenience of disassembly and maintenance, and solves the problems of insufficient reliability, poor maintenance convenience, and poor ergonomics of existing post-processing protective covers for underground mining equipment.

[0037] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications are also considered to be within the protection scope of this utility model.

Claims

1. A protective cover, comprising a cover frame (1) and an openable cover (3), characterized in that: The top of the protective frame (1) is provided with a frame opening (106), the bottom of the protective frame (1) is provided with an installation opening (107), the front end of the protective frame (1) is provided with a frame front sealing plate (102), the frame front sealing plate (102) is provided with a plurality of front sealing plate heat dissipation holes (103), the rear end of the protective frame (1) is provided with a frame rear sealing plate (105), the frame rear sealing plate (105) is provided with a connecting opening (108), and the left and right ends of the protective frame (1) are respectively provided with frame side sealing plates (109); the openable type The protective cover (3) is set inside the skeleton opening (106). The protective cover skeleton (1), the skeleton opening (106), and the openable protective cover (3) are in the shape of a door with both ends bent downward. The openable protective cover (3) is provided with a number of protective cover heat dissipation holes (303). The openable protective cover (3) is hinged to one side edge of the skeleton opening (106) in the left and right directions by a hinge (2). The openable protective cover (3) is connected to the other side edge of the skeleton opening (106) in the left and right directions by an openable protective cover mounting bolt (5).

2. The protective cover according to claim 1, characterized in that: The side edge of the skeleton opening (106) near the hinge (2) is lower than the side edge of the skeleton opening (106) near the openable cover mounting bolt (5), and the side edge of the openable cover (3) near the hinge (2) is lower than the side edge of the openable cover (3) near the openable cover mounting bolt (5).

3. The protective cover according to claim 1, characterized in that: The number of hinges (2) between the openable cover (3) and the skeleton opening (106) is several, and the several hinges (2) are distributed in the front-back direction. The number of openable cover mounting bolts (5) between the openable cover (3) and the skeleton opening (106) is several, and the several openable cover mounting bolts (5) are distributed in the front-back direction.

4. The protective cover according to claim 1, characterized in that: Several hinge mounting nuts (7) are welded to one side edge of the skeleton opening (106) near the hinge (2), and several hinge mounting nuts (7) are welded to one side edge of the openable cover (3) near the hinge (2). The two ends of the hinge (2) are respectively connected to the hinge mounting nuts (7) on the skeleton opening (106) and the openable cover (3) by hinge mounting bolts.

5. The protective cover according to claim 1, characterized in that: The left and right end skeleton side sealing plates (109) are provided with a number of side sealing plate heat dissipation holes (104), the outer side of the left and right end skeleton side sealing plates (109) is provided with a number of skeleton reinforcing ribs (101), and the bottom edge of the left and right end skeleton side sealing plates (109) is provided with a number of skeleton mounting bolts (4) distributed along the front and back.

6. The protective cover according to claim 1, characterized in that: The front and rear edges of the skeleton opening (106) are provided with a number of guide mounting plates (6). The number of guide mounting plates (6) are distributed sequentially along the extension path of the front and rear edges of the skeleton opening (106). The front and rear edges of the openable cover (3) rest on the number of guide mounting plates (6).

7. The protective cover according to claim 1, characterized in that: The inner wall of the openable cover (3) is provided with cover reinforcing ribs (301), and the cover reinforcing ribs (301) extend from one side edge to the other side edge in the left and right direction of the openable cover (3); the two sides of the cover frame (1) are provided with cover lifting holes, and the bottom edge of the front cover plate (102) of the frame is provided with a number of frame mounting bolts (4) distributed along the left and right; the connecting opening (108) passes through the rear cover plate (105) of the frame downward.

8. The protective cover according to claim 1, characterized in that: The openable cover (3) has two cover handles (302) distributed along the front and back on one side near the openable cover mounting bolt (5). The two cover handles (302) are located on the outer wall of the openable cover (3) and above the openable cover mounting bolt (5).

9. A post-processor architecture, comprising a post-processor, characterized in that: It also includes a protective shield as described in any one of claims 1 to 8, the protective shield covering the post-processor downwards.

10. An engineering machinery, comprising an engineering machinery body, characterized in that: It also includes the protective cover as described in any one of claims 1 to 8, or the post-processor structure as described in claim 9, wherein the protective cover or the post-processor structure is mounted on the hood of the engineering machinery body.

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