Hood for mining truck and mining truck

Abstract

The utility model belongs to the technical field of mining trucks, and discloses a mining truck hood and a mining truck.The mining truck hood comprises a hood body and a middle net, the front side of the hood body is hinged to a truck body, an access hole is formed in the front side of the hood body, the middle net is located at the access hole, one of the left side and the right side of the middle net is a hinged side, and the other side of the middle net is a hinged side; one of the left side and the right side is a hinged side, the other of the left side and the right side is a locking side, the hinged side is hinged to the hood body, so that the middle net has an opening position for opening the access hole and a closing position for closing the access hole, the locking side is provided with a locking structure capable of locking the middle net at the closing position, and the hood body is provided with a limiting structure. The limiting structure can be matched with the middle net to limit the middle net at the opening position, so that on one hand, the installation difficulty of the hood is lowered, potential safety hazards in the hood installation process are eliminated, on the other hand, the maintenance difficulty of components on the front side of the engine is lowered, and the effect that the components on the front side of the engine can be conveniently maintained is achieved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of mining vehicles, and particularly relates to a bonnet for a mining truck and the mining truck. BACKGROUND

[0002] The mining truck is also called a mining dump truck, which is used for transporting ores, waste rocks or earthwork in an open-pit mine. The mining truck is usually driven by diesel or electricity. For the mining truck driven by diesel, the engine is arranged at the front of the vehicle body, and the vehicle body is provided with a bonnet arranged outside the engine to protect the engine and ensure stable operation of the engine.

[0003] In order to facilitate maintenance of the engine, the existing bonnet is usually hinged to the vehicle body, and the hinge for connecting the vehicle body is located at the front of the vehicle body, so that the bonnet can be flipped forward to rotate to the front of the engine to expose the engine to the outside, thereby facilitating maintenance of the engine. However, since the bonnet is flipped open, the space between the bonnet and the front side of the engine is small, which is not convenient for a worker to maintain the components on the front side of the engine, thereby increasing the difficulty of maintaining the components on the front side of the engine. In addition, since the bolt for fixing the hinge to the vehicle body is located on the inner side of the bonnet, the worker needs to enter the inside of the bonnet when installing the bolt for fixing the hinge, which increases the difficulty of installing the bonnet and has certain safety hazards. CONTENT OF THE UTILITY MODEL

[0004] The application provides a bonnet for a mining truck to facilitate maintenance of the components on the front side of the engine, reduce the difficulty of installing the bonnet, and eliminate safety hazards when installing the bonnet.

[0005] The technical scheme adopted by the application is as follows:

[0006] A bonnet for a mining truck, comprising a bonnet body and a middle net, the front side of the bonnet body is hinged to a vehicle body, and the front side of the bonnet body has a maintenance opening, the middle net is located at the maintenance opening, one of the left and right sides of the middle net is a hinged side, and the other is a locking side, the hinged side is hinged to the bonnet body, so that the middle net has an open position for opening the maintenance opening and a closed position for closing the maintenance opening, the locking side is provided with a locking structure capable of locking the middle net in the closed position, and the bonnet body is provided with a limiting structure capable of cooperating with the middle net to limit the middle net in the open position.

[0007] By adopting the technical scheme, when the hood in the application is installed to the vehicle body, the hood can be hoisted to the vehicle body first, then the locking structure is operated to release the locking of the middle screen in the closed position, then the middle screen is rotated to rotate the middle screen from the closed position to the open position, the access hole is exposed in front of the worker, then the worker can extend the hand through the access hole to the inside of the hood body, and the bolt of the fixed hinge is installed to the vehicle body to complete the installation of the hood, which avoids the situation that the worker needs to enter the inside of the hood to install the bolt, and thus reduces the installation difficulty of the hood and eliminates the safety hazard of installing the hood.

[0008] When the components on the front side of the engine are overhauled, the locking structure is operated first to release the locking of the middle screen, then the middle screen is rotated to rotate the middle screen from the closed position to the open position, the access hole is exposed in front of the worker, then the limiting structure is operated to cooperate with the middle screen, and then the limiting structure limits the middle screen in the open position, then the worker can extend the hand through the access hole to the inside of the hood body to overhaul the components on the front side of the engine, which avoids the situation that the entire hood needs to be opened to overhaul the components on the front side of the engine, and avoids the situation that the worker needs to enter the inside of the hood and is not convenient to overhaul the components on the front side of the engine due to the small space between the hood and the front side of the engine, so as to reduce the overhaul difficulty of the components on the front side of the engine, and thus achieve the effect of facilitating the overhaul of the components on the front side of the engine.

[0009] In addition, since the hinge side is located on the left side or the right side of the middle screen, compared with the hinge position of the middle screen and the hood body being located on the upper part of the middle screen, the situation that the support structure for upwardly supporting the middle screen needs to be provided is avoided, so as to reduce the production cost of the hood and increase the safety of the worker when overhauling the components on the front side of the engine; compared with the hinge position of the middle screen and the hood body being located on the lower part of the middle screen, the situation that the middle screen is downwardly flipped to interfere with the body of the worker is avoided, so as to also ensure the effect of facilitating the overhaul of the components on the front side of the engine; and compared with the scheme that the middle screen is detachably connected to the hood body, the situation that the middle screen needs to be detached when overhauling the components on the front side of the engine is avoided, so as to greatly improve the overhaul efficiency of the components on the front side of the engine.

[0010] And, by the setting of the limiting structure, the middle screen is limited in the open position by the limiting structure, avoiding the situation that the middle screen moves towards the closed position under the action of wind or the misoperation of other workers during the maintenance of the components on the front side of the engine, causing harm to the workers, to increase the safety of the maintenance of the components on the front side of the engine, and also avoiding the situation that the connecting hinge of the middle screen and the hood body is damaged due to the large rotation angle of the middle screen, to ensure the connection strength of the middle screen and the hood body to a certain extent.

[0011] Optionally, the inside of the hood body has a reinforcing frame, the reinforcing frame has a reinforcing beam at the maintenance opening, the reinforcing beam is arranged in a spaced manner with the hinge side of the middle screen, the limiting structure comprises a limiting rod, one end of the limiting rod is connected to the reinforcing beam, the other end of the limiting rod is arranged in a bent manner and forms a penetrating segment, the inside of the middle screen is provided with a limiting block, the limiting block has a limiting hole, and the penetrating segment can penetrate into the limiting hole.

[0012] By adopting the above technical scheme, after the middle screen is rotated from the closed position to the open position, the limiting rod is rotated, and then the penetrating segment of the limiting rod penetrates into the limiting hole of the limiting block, so that the limiting rod is connected to the limiting block, and then the middle screen is limited in the open position by the penetrating segment penetrating into the limiting block, to avoid the situation that the middle screen rotates towards the closed position under the action of wind or the misoperation of other workers when the middle screen is in the open position, and by setting the limiting structure as the limiting rod, the structural design of the limiting structure is simplified, to reduce the production cost of the hood.

[0013] Optionally, the reinforcing beam is provided with a connecting rod, the connecting rod is arranged in an upwardly bent and extended manner, one end of the limiting rod away from the penetrating segment has a connecting ring, the inner diameter of the connecting ring is greater than the diameter of the connecting rod, and the connecting ring is sleeved on the connecting rod.

[0014] By adopting the above technical scheme, since the connecting ring is sleeved on the connecting rod and the connecting rod is arranged on the reinforcing beam, on the one hand, the connecting structure of the limiting rod and the reinforcing beam is simplified, and on the other hand, the effect of facilitating the assembly of the limiting rod on the reinforcing beam is achieved; since the inner diameter of the connecting ring is greater than the diameter of the connecting rod, the limiting rod can move relatively to the connecting rod to a large extent, to achieve the effect of facilitating the penetration of the penetrating segment into the limiting block.

[0015] Optionally, the reinforcing beam is provided with a limiting frame at the bottom of the connecting rod, the limiting frame has a clamping space, the opening of the clamping space is arranged away from the reinforcing beam, and the limiting rod can be clamped into the clamping space through the opening.

[0016] By adopting the above technical scheme, the limiting rod is separated from the limiting block, and then the limiting rod is adjusted to the position of the limiting frame, so that the limiting rod is aligned with the opening of the limiting frame, and then the limiting rod is pressed to make the limiting rod enter the clamping space through the opening, so that the limiting frame clamps the limiting rod, thereby increasing the stability of the limiting rod, avoiding the noise caused by the mutual collision between the limiting rod and the reinforcing beam, and avoiding the situation that the connecting ring is separated from the connecting rod due to the up-and-down movement of the limiting rod when the mine truck runs on the bumpy road, so as to avoid the loss of the limiting rod.

[0017] Optionally, the inner side of the locking side is provided with a positioning block, the reinforcing beam is provided with a support sheet at the maintenance opening corresponding to the locking side, the support sheet is provided with a positioning sheet, the upper end and the lower end of the positioning sheet are both bent towards the outside of the hood body, so that the inside of the positioning sheet forms an accommodation space for accommodating the positioning block, and the upper end and the lower end of the positioning sheet are both bent away from each other.

[0018] By adopting the above technical scheme, when the middle net is about to move to the closed position, the limiting block enters the accommodation space, and the upper end and the lower end of the positioning sheet abut the upper and lower sides of the limiting block respectively, so that the cooperation between the positioning sheet and the limiting block positions the locking side in the vertical direction, thereby avoiding the situation that the middle net cannot be completely moved to the locking position due to the drooping of the locking side of the middle net, and reducing the difficulty of completely rotating the middle net to the closed position. Since the upper end and the lower end of the positioning sheet are both bent away from each other, the opening height of the accommodation space is increased, thereby achieving the effect of facilitating the movement of the limiting block into the accommodation space, and reducing the difficulty of closing the middle net.

[0019] Optionally, the positioning sheet comprises a first positioning sheet and a second positioning sheet arranged opposite to each other, a waist-shaped hole is arranged on each of the first positioning sheet and the second positioning sheet, the length direction of the waist-shaped hole is vertically arranged, and the first positioning sheet and the second positioning sheet are fixedly connected to the support sheet by a bolt penetrating through the waist-shaped hole and the support sheet.

[0020] By adopting the technical scheme, when the position of the locking side in the vertical direction is adjusted when the middle screen is in the closed position, the bolt is first loosened, so that the first positioning sheet and the second positioning sheet become loose, and then the first positioning sheet and / or the second positioning sheet is adjusted, so that the waist-shaped hole moves relative to the bolt, and then the distance between the first positioning sheet and the second positioning sheet changes, or the position of the first positioning sheet and / or the second positioning sheet in the vertical direction changes, and after the first positioning sheet and / or the second positioning sheet is adjusted, the bolt is tightened, so that the bolt fixes the first positioning sheet and the second positioning sheet, to complete the adjustment of the first positioning sheet and / or the second positioning sheet, so that the position of the locking side in the vertical direction is adjusted by adjusting the position of the first positioning sheet and / or the second positioning sheet, and then the gap between the middle screen and the upper wall of the access hole is adjusted, and the force of the positioning sheet applied to the positioning block in the direction of the outside of the bonnet body is adjusted.

[0021] Optionally, the reinforcing beam is provided with a mounting sheet located at the access hole, and the mounting sheet is provided with an elastic column, and when the middle screen is in the closed position, the elastic column abuts against the inner side of the middle screen.

[0022] By adopting the technical scheme, when the middle screen is in the closed position, the elastic column abuts against the inner side of the middle screen, and then the elastic column applies an elastic force to the middle screen in the direction of the outside of the bonnet body, so that the locking structure cooperates with the bonnet body more stably, to increase the stability of the middle screen in the closed position, and at the same time, the middle screen and the bonnet body can have a certain gap, to avoid noise generated by mutual friction between the middle screen and the bonnet body during driving of the mine truck.

[0023] Optionally, the support sheet is located at the middle position in the height direction of the access hole, and the mounting sheet is provided with at least two mounting sheets located on the upper and lower sides of the support sheet.

[0024] By adopting the technical scheme, when the positioning sheet and the positioning block cooperate to adjust the middle screen, the middle screen can be balanced, to increase the adjustment effect of the middle screen, and because the mounting sheet is provided with two mounting sheets located on the upper and lower sides of the support sheet, on the one hand, the point of elastic support of the middle screen is increased, and on the other hand, the middle screen can be balanced in the vertical direction, to avoid the situation that the middle screen is twisted.

[0025] Optionally, the locking structure is a flat lock, the bonnet body is provided with a stop sheet located in the access hole corresponding to the locking side, and the locking tongue of the flat lock can cooperate with the inner side stop of the stop sheet.

[0026] By adopting the technical scheme, the lock structure is a flat lock, thereby simplifying the structure design of the flat lock, reducing the production cost of the bonnet, and the locking of the flat lock can cooperate with the inner side stop of the stop piece, so as to ensure that the flat lock can lock the middle screen in the closed position.

[0027] The application further discloses a mining truck, so as to reduce the installation difficulty of the bonnet and facilitate the maintenance of the components on the front side of the engine.

[0028] The mining truck comprises a vehicle body, an engine arranged at the front of the vehicle body, and the bonnet.

[0029] By adopting the technical scheme, the mining truck in the application adopts the bonnet, thereby reducing the installation difficulty of the bonnet and eliminating the safety hazards in the installation process of the bonnet, and reducing the maintenance difficulty of the components on the front side of the engine, so as to facilitate the maintenance of the components on the front side of the engine.

[0030] By adopting the technical scheme, the application has the following beneficial effects:

[0031] 1. The bonnet in the application comprises a bonnet body and a middle screen, the front side of the bonnet body is hinged to the vehicle body, the front side of the bonnet body has a maintenance opening, the middle screen is located at the maintenance opening, one of the left and right sides of the middle screen is a hinged side, and the other of the left and right sides is a locking side, the hinged side is hinged to the bonnet body, so that the middle screen has an open position for opening the maintenance opening and a closed position for closing the maintenance opening, the locking side is provided with a locking structure capable of locking the middle screen in the closed position, the bonnet body is provided with a limiting structure capable of cooperating with the middle screen to limit the middle screen in the open position, thereby avoiding the situation that the components on the front side of the engine need to be maintained by opening the entire bonnet, and avoiding the situation that the worker needs to enter the inside of the bonnet and it is inconvenient for the worker to maintain the components on the front side of the engine due to the small space between the bonnet and the front side of the engine, thereby reducing the maintenance difficulty of the components on the front side of the engine, and facilitating the maintenance of the components on the front side of the engine, and in addition, the situation that the worker needs to enter the inside of the bonnet to install the bolt is avoided during the installation of the bonnet, thereby reducing the installation difficulty of the bonnet and eliminating the safety hazards in the installation of the bonnet.

[0032] 2. The hood body in the application has a reinforcing beam in the access opening, the reinforcing beam is arranged at intervals with the hinge side of the middle screen, the limiting structure comprises a limiting rod, one end of the limiting rod is connected to the reinforcing beam, the other end of the limiting rod is bent and forms a penetrating section, the inner side of the middle screen is provided with a limiting block, the limiting block has a limiting hole, the penetrating section can be penetrated in the limiting hole, thereby simplifying the structure design of the limiting structure, reducing the production cost of the hood, and reducing the operation steps of the required workers when operating the middle screen, thereby reducing the difficulty of limiting the middle screen in the closed position.

[0033] 3. The reinforcing beam in the application is provided with a connecting rod, the connecting rod is bent and extended upward, the end of the limiting rod away from the penetrating section has a connecting ring, the inner diameter of the connecting ring is greater than the diameter of the connecting rod, and the connecting ring is sleeved on the connecting rod, which on the one hand simplifies the connecting structure of the limiting rod and the reinforcing beam, and on the other hand achieves the effect of facilitating the assembly of the limiting rod on the reinforcing beam; since the inner diameter of the connecting ring is greater than the diameter of the connecting rod, the limiting rod can move relatively to the connecting rod to facilitate the penetrating section to be penetrated in the limiting block. BRIEF DESCRIPTION OF DRAWINGS

[0034] The drawings described herein are used to provide further understanding of the application, constitute a part of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0035] Figure 1 It is a structure schematic view of the hood in one embodiment of the application;

[0036] Figure 2 It is another view of the structure schematic view of the hood in one embodiment of the application;

[0037] Figure 3 It is a partial structure schematic view of the hood in one embodiment of the application, and the middle screen is omitted in the drawing;

[0038] Figure 4 It is Figure 3 an enlarged view of the A part in the middle;

[0039] Figure 5 It is a structure schematic view of the middle screen in one embodiment of the application in the open position;

[0040] Figure 6 It is Figure 5 an enlarged view of the B part in the middle;

[0041] Figure 7 It is Figure 5 an enlarged view of the C part in the middle;

[0042] Figure 8It is a schematic view of the structure of the bonnet in the application, in which the middle net is omitted;

[0043] Figure 9 It is a schematic view of the partial structure of the mining truck in an embodiment of the application, mainly showing the relative position relationship of the engine, the fuel filter assembly and the radiator.

[0044] Reference signs:

[0045] 1, bonnet body; 11, access hole; 12, reinforcing beam; 121, connecting rod; 122, limiting frame; 123, connecting beam; 13, support piece; 131, first positioning piece; 132, second positioning piece; 133, waist-shaped hole; 14, mounting piece; 141, elastic column; 15, stop piece; 2, middle net; 21, limiting block; 211, limiting hole; 22, positioning block; 23, reinforcing rib; 3, flat lock; 4, limiting rod; 41, penetrating section; 42, connecting ring; 5, engine; 51, fuel filter assembly; 52, radiator. DETAILED DESCRIPTION

[0046] In order to more clearly illustrate the overall concept of the application, the following will be described in detail in an exemplary manner with reference to the accompanying drawings.

[0047] In the following description, many specific details are set forth in order to provide a thorough understanding of the application, but the application can also be practiced in other ways different from those described herein, therefore, the scope of protection of the application is not limited by the specific embodiments disclosed below.

[0048] In addition, in the description of the application, it should be understood that the terms "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore, it cannot be understood as a limitation of the application.

[0049] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected, or it can be communicated; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication or interaction relationship between two elements. For those skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

[0050] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of the present specification, the description referring to the terms "embodiment", "example", "one embodiment", "exemplary" or "specific example" and the like means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples.

[0051] With reference to Figures 1 to 7 A cab for a mine truck is disclosed, which comprises a cab body 1 and a middle screen 2, the front side of the cab body 1 is hinged to a vehicle body, and the front side of the cab body 1 has an access opening 11, the middle screen 2 is located at the access opening 11, one of the left and right sides of the middle screen 2 is a hinged side, and the other of the left and right sides is a locking side, the hinged side is hinged to the cab body 1, so that the middle screen 2 has an open position for opening the access opening 11 and a closed position for closing the access opening 11, the locking side is provided with a locking structure capable of locking the middle screen 2 in the closed position, and the cab body 1 is provided with a limiting structure capable of cooperating with the middle screen 2 to limit the middle screen 2 in the open position.

[0052] When installing the cab in the present application to the vehicle body, the cab can be hoisted onto the vehicle body first, and then the locking structure is operated to release the locking of the middle screen 2 in the closed position, and then the middle screen 2 is rotated to rotate from the closed position to the open position, the access opening 11 is exposed in front of the worker, then the worker can insert his hand through the access opening 11 into the inside of the cab body 1, and install the bolt of the fixed hinge to the vehicle body to complete the installation of the cab, which avoids the situation that the worker needs to enter the inside of the cab to install the bolt, thereby reducing the difficulty of installing the cab and eliminating the safety hazard of installing the cab.

[0053] When the components on the front side of the engine 5 are maintained, the locking structure is first operated to release the locking of the centering net 2, and then the centering net 2 is rotated to rotate the centering net 2 from the closed position to the open position, the access opening 11 is exposed in front of the worker, and then the limiting structure is operated to cooperate with the centering net 2, so that the limiting structure limits the centering net 2 in the open position, and then the worker can extend his hand into the inside of the hood body 1 through the access opening 11 to realize the maintenance of the components on the front side of the engine 5, so as to avoid the situation that the entire hood needs to be opened for the maintenance of the components on the front side of the engine 5, and also avoid the situation that the worker needs to enter the inside of the hood and it is not convenient for the worker to maintain the components on the front side of the engine 5 due to the small space between the hood and the front side of the engine 5, so as to reduce the difficulty of the maintenance of the components on the front side of the engine 5, and further achieve the effect of facilitating the maintenance of the components on the front side of the engine 5.

[0054] In addition, since the hinged side is located on the left side or the right side of the centering net 2, compared with the hinged position of the centering net 2 and the hood body 1 being located on the upper part of the centering net 2, the situation that the support structure needs to be provided to support the centering net 2 upward is avoided, so as to reduce the production cost of the hood and increase the safety of the worker when maintaining the components on the front side of the engine 5; compared with the hinged position of the centering net 2 and the hood body 1 being located on the lower part of the centering net 2, the situation that the centering net 2 is flipped downward to interfere with the body of the worker is avoided, so as to also ensure the effect of facilitating the maintenance of the components on the front side of the engine 5; and compared with the scheme that the centering net 2 is detachably connected to the hood body 1, the situation that the centering net 2 needs to be detached when the components on the front side of the engine 5 are maintained is avoided, so as to greatly improve the maintenance efficiency of the components on the front side of the engine 5.

[0055] Moreover, through the setting of the limiting structure, the centering net 2 is limited in the open position by the limiting structure, so as to avoid the situation that the centering net 2 moves toward the closed position under the action of the wind or the misoperation of other workers during the maintenance of the components on the front side of the engine 5, which causes harm to the worker, so as to increase the safety of the maintenance of the components on the front side of the engine 5, and also avoid the situation that the connecting hinge of the centering net 2 and the hood body 1 is damaged due to the large rotation angle of the centering net 2, so as to ensure the connection strength of the centering net 2 and the hood body 1 to a certain extent.

[0056] Since the middle net 2 is hinged to the hood body 1 in the application, the effect of facilitating the maintenance of the components on the front side of the engine 5 is realized, so that the fuel filter assembly 51 which needs to be frequently maintained or replaced can be arranged on the front side of the engine 5, so as to facilitate the maintenance and replacement of the fuel filter assembly 51, and the radiator 52 of the engine 5 is arranged as two and arranged on the left and right sides of the engine 5 respectively, so as to reasonably utilize the space on the left and right sides of the engine 5 and ensure the heat dissipation efficiency of the engine 5.

[0057] The hinging mode of the hinged side of the middle net 2 to the hood body 1 is not limited in the application, preferably, referring to Figure 1 , the hinged side of the middle net 2 is hinged to the hood body 1 through a hinge, that is, one leaf of the hinge is fixedly connected to the middle net 2, and the other leaf of the hinge is fixedly connected to the hood body 1, so as to realize the hinge of the middle net 2 and the hood body 1.

[0058] Preferably, a plurality of hinges are arranged in the vertical direction, so as to increase the connection points of the middle net 2 and the hood body 1, and further increase the connection stability of the middle net 2 and the hood body 1.

[0059] Further, the positions of the hinges of the middle net 2 and the positions of the hinges of the hood body 1 are provided with reinforcing pieces, so as to increase the connection structure strength of the hinges and the middle net 2 and the connection structure strength of the hinges and the hood body 1.

[0060] The connection mode of the reinforcing piece and the middle net 2 and the hood body 1 is not limited in the application, preferably, the reinforcing piece on the middle net 2 is welded with the middle net 2, and the reinforcing piece on the hood body 1 is welded with the hood body 1, so as to increase the connection stability of the reinforcing piece and the middle net 2 and the connection stability of the reinforcing piece and the hood body 1. In other embodiments, the reinforcing piece on the middle net 2 can also be integrally formed with the middle net 2, and the reinforcing piece on the hood body 1 is integrally formed with the hood body 1, that is, the reinforcing piece on the middle net 2 is formed by thickening the position of the hinge of the middle net 2, and the reinforcing piece on the hood body 1 is formed by thickening the position of the hinge of the hood body.

[0061] In other embodiments, the hinged side of the middle net 2 can also be hinged to the hood body 1 through a loose-leaf or other hinge structure.

[0062] The limiting structure is not limited in the application, preferably, referring to Figure 2 、 Figure 3 and Figure 5The inside of the hood body 1 has a reinforcing frame, the reinforcing frame has a reinforcing beam 12 located at the access hole 11, the reinforcing beam 12 is arranged at intervals with the hinge side of the middle net 2, the limiting structure comprises a limiting rod 4, one end of the limiting rod 4 is connected to the reinforcing beam 12, the other end of the limiting rod 4 is arranged in a bent manner and forms a penetrating segment 41, the inner side of the middle net 2 is provided with a limiting block 21, the limiting block 21 has a limiting hole 211, and the penetrating segment 41 can be penetrated into the limiting hole 211.

[0063] It can be understood that the reinforcing frame is fixedly connected with the hood body 1 to increase the structural strength of the hood body 1 by using the reinforcing frame; the limiting rod 4 is L-shaped, and one of the apertures of the limiting hole 211 is arranged upwardly, so that the penetrating segment 41 of the limiting rod 4 is penetrated into the limiting hole 211 from top to bottom.

[0064] After the middle net 2 is rotated from the closed position to the open position, the limiting rod 4 is rotated, and then the penetrating segment 41 of the limiting rod 4 is penetrated into the limiting hole 211 of the limiting block 21, so that the limiting rod 4 is connected to the limiting block 21, and then the middle net 2 is limited in the open position by penetrating the penetrating segment 41 into the limiting block 21, so as to avoid the situation that the middle net 2 is rotated toward the closed position under the action of wind or other workers' misoperation when the middle net 2 is in the open position, and by arranging the limiting structure as the limiting rod 4, the structural design of the limiting structure is simplified, so as to reduce the production cost of the hood.

[0065] More preferably, referring to Figure 2 , Figure 3 and Figure 5 , the two reinforcing beams 12 are arranged at intervals, one of the reinforcing beams 12 is arranged close to the hinge side, and the other reinforcing beam 12 is arranged close to the locking side of the middle net 2 and the matching position of the hood body 1, that is, one of the reinforcing beams 12 is arranged close to the hinge side, and the other reinforcing beam 12 is arranged away from the hinge side, the limiting rod 4 is connected to the reinforcing beam 12 close to the hinge side, the reinforcing frame has a connecting beam 123 located between the two reinforcing beams 12, and the two ends of the connecting beam 123 are fixedly connected to the two reinforcing beams 12, so as to increase the stability of the reinforcing beam 12.

[0066] The connection mode of the connecting rod 121 and the reinforcing beam 12 is not limited in the application, and preferably, referring to Figures 3 to 6 , the reinforcing beam 12 is provided with a connecting rod 121, the connecting rod 121 is arranged in an upwardly bent and extended manner, the end of the limiting rod 4 away from the penetrating segment 41 has a connecting ring 42, the inner diameter of the connecting ring 42 is greater than the diameter of the connecting rod 121, and the connecting ring 42 is sleeved on the connecting rod 121.

[0067] It can be understood that one end of the connecting rod 121 is fixedly connected to the reinforcing beam 12, and the other end of the connecting rod 121 is bent upwardly arranged, so that the part of the connecting rod 121 bent upwardly forms a space with the reinforcing beam 12 to accommodate the connecting ring 42.

[0068] Since the connecting ring 42 is sleeved on the connecting rod 121, and the connecting rod 121 is arranged on the reinforcing beam 12, on the one hand, the connecting structure of the limiting rod 4 and the reinforcing beam 12 is simplified, and on the other hand, the effect of facilitating the assembly of the limiting rod 4 on the reinforcing beam 12 is achieved; since the inner diameter of the connecting ring 42 is greater than the diameter of the connecting rod 121, the limiting rod 4 can move greatly relative to the connecting rod 121, so as to achieve the effect of facilitating the insertion of the insertion section 41 into the limiting block 21.

[0069] Further, after the connecting rod 121 is bent and extended upwardly, the side facing the reinforcing beam 12 is bent and abuts against the reinforcing beam 12, and then is bent away from the reinforcing beam 12, so that the abutment of the connecting rod 121 and the reinforcing beam 12 can limit the connecting ring 42, so as to avoid the disengagement of the connecting ring 42 from the top of the connecting rod 121.

[0070] In other embodiments, the reinforcing beam 12 is provided with a connecting pipe, and the end of the limiting rod 4 away from the insertion section 41 is inserted into the connecting pipe, that is, the limiting rod 4 is in a C shape, and when the limiting rod 4 is used to limit the closing position of the centering net 2, the two ends of the limiting rod 4 are respectively inserted into the limiting hole 211 and the connecting pipe.

[0071] Further, referring to Figure 4 The reinforcing beam 12 is provided with a limiting frame 122 at the bottom of the connecting rod 121, the limiting frame 122 has a clamping space, the opening of the clamping space faces away from the reinforcing beam 12, and the limiting rod 4 can be clamped into the clamping space through the opening.

[0072] It can be understood that the limiting frame 122 is a structure formed by bending a plate or a rod, and the limiting frame 122 is fixedly connected to the reinforcing beam 12.

[0073] After the limiting rod 4 is separated from the limiting block 21, the limiting rod 4 is adjusted to the position of the limiting frame 122, so that the limiting rod 4 is aligned with the opening of the limiting frame 122, and then the limiting rod 4 is pressed, so that the limiting rod 4 enters the clamping space through the opening, so that the limiting frame 122 clamps the limiting rod 4, so as to increase the stability of the limiting rod 4, avoid the noise caused by the mutual collision of the limiting rod 4 and the reinforcing beam 12, and avoid the disengagement of the connecting ring 42 from the connecting rod 121 due to the up-and-down movement of the limiting rod 4 when the mine truck runs on a bumpy road, so as to avoid the loss of the limiting rod 4.

[0074] Of course, in order to achieve the limiting of the limiting rod 4, in order to increase the stability of the limiting rod 4, a matching hole can also be arranged on the reinforcing beam 12 below the connecting rod 121, a rubber ring is arranged in the matching hole, the outer periphery of the rubber ring is fixedly connected to the hole wall of the matching hole, the penetrating section 41 can be penetrated in the rubber ring, and the limiting of the limiting rod 4 is achieved by the interference fit between the rubber ring and the penetrating section 41, so that the stability of the limiting rod 4 is increased.

[0075] In other embodiments, the limiting structure includes a fixed sheet and a fixed pin, the fixed sheet is fixedly connected to the hood body 1 and is located above the middle net 2, the fixed sheet is arranged corresponding to the hinge side of the middle net 2, and a through hole for the fixed pin to pass through is arranged on the fixed sheet corresponding to the position of the middle net 2 in the open position. When the middle net 2 is in the open position, the fixed pin is penetrated into the through hole, and the end of the fixed pin penetrating through the through hole abuts against the inner side of the middle net 2, so that the fixed pin locks the rotation of the middle net 2 towards the closed position.

[0076] It should be noted that the inner side of the middle net 2 refers to the side of the middle net 2 facing the inside of the hood body 1 when the middle net 2 is in the closed position, while the outer side of the hood body 1 refers to the side of the hood body 1 exposed to the line of sight of the worker when the hood body 1 covers the outside of the engine 5, and the inner side of the hood body 1 refers to the side that cannot be seen by the worker when the hood body 1 covers the outside of the engine 5.

[0077] In a preferred embodiment, referring to Figure 5 and Figure 7 The inner side of the locking side is provided with a positioning block 22, and the reinforcing beam 12 is provided with a supporting sheet 13 at the maintenance opening 11 corresponding to the locking side. The supporting sheet 13 is provided with a positioning sheet, the upper end and the lower end of the positioning sheet are both bent towards the outside of the hood body 1, so that the inside of the positioning sheet forms a containing space containing the positioning block 22, and the upper end and the lower end of the positioning sheet are both bent away from each other.

[0078] Specifically, the reinforcing beam 12 away from the hinge side is provided with a supporting sheet 13 at the maintenance opening 11.

[0079] It can be understood that the positioning sheet is C-shaped, and the upper end and the lower end of the positioning sheet at the opening of the containing space are both bent away from each other to increase the opening of the containing space; one end of the supporting sheet 13 is fixedly connected to the reinforcing beam 12 away from the hinge side, and the other end of the supporting sheet 13 is fixedly connected to other structures of the reinforcing frame.

[0080] When the middle net 2 is about to move to the closed position, the limiting block 21 enters the accommodating space, and the upper end and the lower end of the positioning sheet abut against the upper and lower sides of the limiting block 21 respectively, so that the cooperation of the positioning sheet and the limiting block 22 positions the locking side in the vertical direction, to avoid the situation that the middle net 2 cannot be completely moved to the locking position due to the drooping of the locking side of the middle net 2, thereby reducing the difficulty of completely rotating the middle net 2 to the closed position; since the upper end and the lower end of the positioning sheet are both bent away from each other, the opening height of the accommodating space is increased, thereby achieving the effect that the limiting block 21 is facilitated to move into the accommodating space, to reduce the difficulty of closing the middle net 2.

[0081] The structure of the positioning sheet is not specifically limited in the present application, preferably, referring to Figure 7 , the positioning sheet comprises a first positioning sheet 131 and a second positioning sheet 132 arranged opposite to each other, and the first positioning sheet 131 and the second positioning sheet 132 are both provided with a waist-shaped hole 133, the length direction of the waist-shaped hole 133 is vertically arranged, and the first positioning sheet 131 and the second positioning sheet 132 are fixedly connected to the supporting sheet 13 by the bolts arranged in the waist-shaped hole 133 and the supporting sheet 13.

[0082] It can be understood that the first positioning sheet 131 and the second positioning sheet 132 are both L-shaped sheet structures.

[0083] When adjusting the position of the middle net 2 in the vertical direction when the middle net 2 is in the closed position, first loosen the bolts, so that the first positioning sheet 131 and the second positioning sheet 132 become loose, and then adjust the first positioning sheet 131 and / or the second positioning sheet 132, so that the waist-shaped hole 133 moves relative to the bolt, and then the distance between the first positioning sheet 131 and the second positioning sheet 132 changes, or the position of the first positioning sheet 131 and / or the second positioning sheet 132 in the vertical direction changes, after adjusting the first positioning sheet 131 and / or the second positioning sheet 132, tighten the bolts, so that the bolts fix the first positioning sheet 131 and the second positioning sheet 132, to complete the adjustment of the first positioning sheet 131 and / or the second positioning sheet 132, thereby adjusting the position of the locking side in the vertical direction when the locking side is in the closed position by adjusting the position of the first positioning sheet 131 and / or the second positioning sheet 132, and then adjusting the gap between the middle net 2 and the upper wall of the access hole 11 and the force applied by the positioning sheet to the limiting block 22 towards the outside of the hood body 1.

[0084] It should be noted that the support sheet 13 is provided with a threaded hole for the threaded connection of the bolt, so that the bolt for fixing the first positioning sheet 131 and the second positioning sheet 132 can be threadedly connected to the support sheet 13, so as to realize the fixing of the first positioning sheet 131 and the second positioning sheet 132. Of course, a hole structure for the bolt to pass through can also be provided on the support sheet 13, and then a nut is threadedly connected on the side of the support sheet 13 away from the head of the bolt, so as to press and fix the first positioning sheet 131 and the second positioning sheet 132 by the head of the bolt and the nut.

[0085] In other embodiments, the positioning sheet can also be an integrally formed C-shaped structure, so as to reduce the installation difficulty of the positioning sheet and reduce the production cost of the positioning sheet.

[0086] In a preferred embodiment, referring to Figure 3 、 Figure 5 and Figure 7 , the reinforcing beam 12 is provided with a mounting sheet 14 located at the access hole 11, and the mounting sheet 14 is provided with an elastic column 141 which abuts against the inner side of the intermediate screen 2 when the intermediate screen 2 is in the closed position.

[0087] Specifically, the reinforcing beam 12 away from the hinged side is provided with a mounting sheet 14 located at the access hole 11.

[0088] It can be understood that the elastic column 141 is a structure made of rubber, silicone or other materials with elasticity, one end of the mounting sheet 14 is fixedly connected to the reinforcing beam 12 away from the hinged side, and the other end of the mounting sheet 14 is fixedly connected to other structures of the reinforcing frame.

[0089] Since the elastic column 141 abuts against the inner side of the intermediate screen 2 when the intermediate screen 2 is in the closed position, the elastic column 141 then exerts an elastic force on the intermediate screen 2 towards the outside of the bonnet body 1, so that the locking structure cooperates with the bonnet body 1 more stably, so as to increase the stability of the intermediate screen 2 in the closed position, and at the same time, the intermediate screen 2 and the bonnet body 1 can have a certain gap therebetween, so as to avoid the noise generated by the mutual friction between the intermediate screen 2 and the bonnet body 1 during the driving of the mining truck.

[0090] Further, the inside of the elastic column 141 is integrally formed with a screw rod, one end of the screw rod extends to the outside of the elastic column 141, and the mounting sheet 14 is provided with a threaded hole for the threaded connection of the screw rod, which can realize the connection of the elastic column 141 and the mounting sheet 14, and at the same time, can adjust the relative position of the elastic column 141 and the mounting sheet 14, so as to adjust the gap between the intermediate screen 2 and the bonnet body 1 when the intermediate screen 2 is in the closed position, and the elastic force that the elastic column 141 can exert on the intermediate screen 2.

[0091] Further, referring to Figure 3The support piece 13 is located at the middle position in the height direction of the access opening 11, and the mounting piece 14 is provided with at least two mounting pieces 14 located at the upper and lower sides of the support piece 13.

[0092] It can be understood that the elastic column 141 is arranged on each mounting piece 14. Since the support piece 13 is located at the middle position in the height direction of the access opening 11, the positioning piece is located at the middle position in the height direction of the access opening 11.

[0093] Since the support piece 13 is located at the middle position in the height direction of the access opening 11, when the positioning piece cooperates with the positioning block 22 to adjust the centering net 2, the centering net 2 can be balanced in force, thereby increasing the adjustment effect of the centering net 2. Since the mounting piece 14 is provided with two mounting pieces 14 located at the upper and lower sides of the support piece 13, on the one hand, the point position of the elastic support of the centering net 2 is increased, and on the other hand, the centering net 2 is balanced in force in the vertical direction as much as possible, so as to avoid the situation that the centering net 2 is twisted.

[0094] The locking structure is not limited in the application, preferably, referring to Figure 1 and Figure 5 The locking structure is a flat lock 3, the machine cover body 1 is provided with a stop piece 15 located in the access opening 11 on the locking side, and the locking tongue of the flat lock 3 can cooperate with the inner side stop of the stop piece 15.

[0095] Specifically, when the flat lock 3 locks the centering net 2, the locking tongue of the flat lock 3 is located at the inner side of the stop piece 15.

[0096] Since the locking structure is a flat lock 3, the structure design of the flat lock 3 is simplified, thereby reducing the production cost of the machine cover, and the locking of the flat lock 3 can cooperate with the inner side stop of the stop piece 15, so as to ensure that the flat lock 3 can lock the centering net 2 at the closed position.

[0097] More preferably, two flat locks 3 are arranged at intervals on the locking side, so as to increase the locking point position of the centering net 2, thereby increasing the stability of the centering net 2 at the closed position.

[0098] In other embodiments, the locking structure can also be a handle lock or other structure capable of locking the centering net 2.

[0099] In a preferred embodiment, referring to Figure 5 The centering net 2 is provided with a reinforcing rib 23 located at the inner side of the centering net 2, and the reinforcing rib 23 extends from the hinged side to the locking side, so as to increase the structural strength of the centering net 2, and at the same time, ensure the appearance quality of the centering net 2.

[0100] Referring to Figure 8 and Figure 9The mining truck further comprises an engine 5 arranged at the front of the vehicle body and the bonnet as described above, and the bonnet body 1 is hinged to the front side of the vehicle body and capable of covering the engine 5.

[0101] Since the mining truck in the present application adopts the bonnet as described above, on the one hand, the installation difficulty of the bonnet is reduced and the safety hazard in the installation process of the bonnet is eliminated, and on the other hand, the maintenance difficulty of the components on the front side of the engine 5 is reduced, so as to achieve the effect of facilitating the maintenance of the components on the front side of the engine 5.

[0102] Preferably, the fuel filter assembly 51 of the engine 5 is arranged on the front side of the engine 5, so as to achieve the effect of facilitating the maintenance of the fuel filter assembly 51, and the radiator 52 of the engine 5 is provided with two and arranged on the two sides of the engine 5 respectively, so as to form an avoidance between the radiator 52 and the fuel filter assembly 51, while ensuring the heat dissipation effect of the engine 5.

[0103] The parts not described in the present application can be realized by using or referring to the existing technology.

[0104] Each of the embodiments in the present specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each of the embodiments mainly describes the difference from other embodiments.

[0105] The above only describes the embodiments of the present application and is not used to limit the present application. The present application can have various changes and modifications for those skilled in the art. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of claims of the present application.

Claims

1. A cab for a mining truck, characterized in that The hood body (1) is hinged to the vehicle body at the front side, and has an access opening (11) at the front side, and the middle screen (2) is located at the access opening (11), one of the left and right sides of the middle screen (2) is a hinged side, and the other is a locking side, the hinged side is hinged to the hood body (1), so that the middle screen (2) has an open position to open the access opening (11) and a closed position to close the access opening (11), the locking side is provided with a locking structure capable of locking the middle screen (2) in the closed position, and the hood body (1) is provided with a limiting structure capable of cooperating with the middle screen (2) to limit the middle screen (2) in the open position.

2. A cab for a mining truck as claimed in claim 1, characterised in that, The inside of the hood body (1) has a reinforcing frame, the reinforcing frame has a reinforcing beam (12) at the access opening (11), the reinforcing beam (12) is arranged in a spaced manner with the hinged side of the middle screen (2), the limiting structure includes a limiting rod (4), one end of the limiting rod (4) is connected to the reinforcing beam (12), the other end of the limiting rod (4) is bent and forms a penetrating section (41), the inner side of the middle screen (2) is provided with a limiting block (21), the limiting block (21) has a limiting hole (211), and the penetrating section (41) can be penetrated in the limiting hole (211).

3. A cab for a mining truck as claimed in claim 2, characterised in that, The reinforcing beam (12) is provided with a connecting rod (121), the connecting rod (121) is upwardly bent and extended, the end of the limiting rod (4) away from the penetrating section (41) has a connecting ring (42), the inner diameter of the connecting ring (42) is greater than the diameter of the connecting rod (121), and the connecting ring (42) is sleeved on the connecting rod (121).

4. A cab for a mining truck as claimed in claim 3, characterised in that, The reinforcing beam (12) is provided with a limiting frame (122) at the bottom of the connecting rod (121), the limiting frame (122) has a clamping space, the opening of the clamping space is arranged away from the reinforcing beam (12), and the limiting rod (4) can be clamped into the clamping space through the opening.

5. A cab for a mining truck as claimed in claim 2, characterised in that, The inner side of the locking side is provided with a positioning block (22), the reinforcing beam (12) is provided with a supporting piece (13) at the access opening (11) corresponding to the locking side, the supporting piece (13) is provided with a positioning piece, the upper end and the lower end of the positioning piece are both bent towards the outside of the hood body (1), so that the inside of the positioning piece forms a containing space containing the positioning block (22), and the upper end and the lower end of the positioning piece are both bent towards the direction away from each other.

6. A cab for a mining truck as claimed in claim 5, characterised in that, The positioning piece comprises a first positioning piece (131) and a second positioning piece (132) arranged oppositely, and a waist-shaped hole (133) is arranged on each of the first positioning piece (131) and the second positioning piece (132), the length direction of the waist-shaped hole (133) is arranged vertically, and the first positioning piece (131) and the second positioning piece (132) are fixedly connected to the support piece (13) through bolts arranged in the waist-shaped hole (133) and the support piece (13).

7. A cab for a mining truck as claimed in claim 5, characterised in that, The reinforcing beam (12) is provided with a mounting piece (14) located at the access opening (11), the mounting piece (14) is provided with an elastic column (141), and when the middle net (2) is in the closed position, the elastic column (141) abuts against the inner side of the middle net (2).

8. A cab for a mining truck as claimed in claim 7, characterised in that, The support piece (13) is located at the middle position in the height direction of the access opening (11), and the mounting piece (14) is provided with at least two mounting pieces and is located on the upper side and the lower side of the support piece (13) respectively.

9. A cab for a mining truck according to any one of claims 1-8, characterized in that, The locking structure is a flat lock (3), the machine cover body (1) is provided with a stop piece (15) located in the access opening (11) corresponding to the locking side, and the lock tongue of the flat lock (3) can be stopped on the inner side of the stop piece (15).

10. A mining truck, characterized in that The machine cover body (1) is hinged to the front side of the vehicle body and can be covered on the engine (5).

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