Side cab roof and method of making same and underground lhd using same

Abstract

The application discloses a lateral cab roof, a manufacturing method thereof and an underground scraper loader using the roof. The lateral cab roof comprises a roof frame, an outer left end surface along an outer contour of the roof frame, and an outer upper end surface laid roof bending plate, characterized in that: the left end surface and the right end surface of the roof frame are provided with an inverted isosceles trapezoidal structure. The application also provides an underground scraper loader comprising the lateral cab roof, and provides a manufacturing method of the lateral cab roof. The application has the beneficial effects that: the inverted isosceles trapezoidal structure of the roof frame has stability itself, which is used for resisting the impact of the roof bending plate caused by the floating stone on the top of the tunnel, so that the impact resistance of the roof bending plate is improved, and the safety of the driver is further protected. The layout of the waist line in the inverted isosceles trapezoidal structure opens the driving blind area of the right end front lower corner and the right end rear lower corner of the vehicle, and improves the safety of the driver.

Description

Technical Field

[0001] This invention belongs to the technical field of mining machinery cabs, and more specifically, it relates to a lateral cab roof, its manufacturing method, and an underground loader using the roof. Background Technology

[0002] Compared to road scrapers, underground loaders operate under much harsher conditions. Due to the limitations of underground tunnel dimensions, the design and layout of human activity space and operating equipment become more challenging during the initial design phase.

[0003] Because underground tunnels lack natural light and rely solely on artificial lighting, and the driver's seat is low with poor visibility, coupled with narrow roads, steep slopes, and numerous curves, collisions with other vehicles and tunnel walls are common, potentially injuring equipment and personnel. Secondly, loose rocks often lie on the tunnel ceiling, sometimes damaging the cab and injuring the driver. Thirdly, uneven ground or large rocks make vehicles prone to overturning.

[0004] For underground loaders, such as models with a capacity of 2m³ or less, the cab roof is typically a side-facing roof. The advantage of a side-facing roof is that it provides better visibility in the front and rear directions, making it easier to observe the working devices positioned in front of and behind the vehicle. The disadvantage is that there are blind spots in the left and right directions, increasing the risk of accidents.

[0005] A more intuitive example is the underground loader disclosed in the Chinese design patent with authorization announcement number CN306495922S. The combination of color, shape, and pattern of the underground loader reveals the side cab roof. The top part of the side cab roof is affected by the layout of the boom hinge point. A gap is set in the roof above the boom hinge point. The safety space of the roof is sacrificed for the operator's safety to allow for the movement of the boom.

[0006] The combination of color, shape, and pattern on the underground loader also reveals that a pillar is installed directly in front of the driver's seat to support the roof. This pillar is close to the center of the driver's seat, thus affecting the driver's line of sight and creating a blind spot.

[0007] Combining the shortcomings of the two factors mentioned above, the driver's cab area lacks a sense of boundary, resulting in a lack of physical safety and comfort for the driver, as well as fatigue caused by psychological burden.

[0008] In response, the present invention provides a lateral cab roof and an underground loader using the same roof. Summary of the Invention

[0009] To address the problems of existing underground scrapers, the purpose of this invention is to provide a lateral cab roof and an underground scraper using the same roof, comprising a roof frame, a roof curved plate laid along the outer left end face and the outer upper end face of the roof frame, and an inverted isosceles trapezoidal structure provided on the left and right end faces of the roof frame.

[0010] Furthermore, the roof frame includes a left front A-pillar, a diagonal beam connected to the left front A-pillar, a horizontal beam connected to the diagonal beam, and a right front A-pillar connected to the horizontal beam; a left rear B-pillar, a diagonal beam connected to the left rear B-pillar, a horizontal beam connected to the diagonal beam, and a right rear B-pillar connected to the horizontal beam; and a bottom beam disposed between the right front A-pillar and the right rear B-pillar.

[0011] Furthermore, it also includes a bottom beam positioned between the left front A-pillar and the left rear B-pillar of the roof frame.

[0012] Furthermore, the interface on the upper end face of the inclined beam of the roof frame extends outward relative to the interface on the lower end face of the inclined beam.

[0013] Furthermore, the inner and outer contours of the inclined beams of the roof frame extend upward along the inner and outer contours of the left rear B-pillar and the left front A-pillar.

[0014] Furthermore, the inner contour of the inclined beam of the roof frame forms an angle α with the inner contour of the crossbeam.

[0015] Furthermore, the cross-section of the inclined beams of the roof frame is either rectangular or square.

[0016] Furthermore, the α angle between the inner contour of the inclined beam and the inner contour of the crossbeam of the roof frame is in the range of 165°-170°.

[0017] Furthermore, it also includes an inner ceiling connected to the ceiling curved plate and the ceiling frame. The right eaves of the inner ceiling are connected to the right end of the ceiling frame, the right eaves of the inner ceiling are connected to the ceiling curved plate, and the left eaves of the inner ceiling are connected to the ceiling curved plate through a set β angle.

[0018] Furthermore, it also includes a reinforcing bent plate attached to the inner contour of the inclined beam of the roof frame, the upper end of which is connected to the roof bent plate.

[0019] Furthermore, the ratio of the top width of the canopy curved plate to the nominal width of the vehicle is in the range of 0.7-0.8.

[0020] Furthermore, water guides are provided at the front and rear ends of the canopy curved plate.

[0021] Furthermore, the β angle is in the range of 150°-170°.

[0022] The machine also provides an underground loader, including the side cab roof, characterized in that: it further includes a first base plate connected to the bottom surfaces of the left front A-pillar and the left rear B-pillar respectively, and a second base plate connected to the bottom beam between the right front A-pillar and the right rear B-pillar;

[0023] Furthermore, the first base plate is connected to the left end face of the frame, and the second base plate is connected to the right end face of the frame.

[0024] Furthermore, this application also provides a method for manufacturing a side cab roof, comprising at least the following steps: Step 1, material preparation: based on the connection angle, length, and location of the reinforcing curved plate and the roof curved plate as defined in the welding drawing of the side cab roof, a slit is set in the unfolded drawing of the roof curved plate, and the material is cut according to the unfolded drawing of the roof curved plate after the slit is set using a cutting device. Simultaneously, the reinforcing curved plate, the water guide, and the inner roof are also prepared. Step 2, bending: the reinforcing curved plate, the water guide, the inner roof, and the roof curved plate are bent according to the production drawings. Step 3, assembly and welding of the reinforcing curved plate: using the slits of the roof curved plate obtained in Steps 1 and 2 as a reference, the reinforcing curved plate obtained in Step 2 is assembled and welded along the slits on the roof curved plate. Step 4, assembly and welding of the inclined beam: using the roof assembled in Step 3 as a reference... Using the curved plate and reinforcing curved plate as a reference, attach the inclined beam to the curved plate of the roof, and then attach the inclined beam to the reinforcing curved plate. Weld the inclined beam to the reinforcing curved plate and the curved plate of the roof to fix them. Step five: Using the fixed inclined beam in step four as a reference, weld the crossbeam and the right front A-pillar along the interface of the upper end face of the inclined beam in sequence. Weld the left front A-pillar along the interface and cut of the lower end face of the inclined beam. Weld the crossbeam, the right rear B-pillar, and the bottom beam between the right front A-pillar and the right rear B-pillar in sequence along the interface of the upper end face of the inclined beam. Weld the left rear B-pillar along the interface and cut of the lower end face of the inclined beam. Step six: Weld the water guide and inner roof obtained in step two. Step seven: Using the left front A-pillar and left rear B-pillar in step five as a reference, weld the bottom beam between the left front A-pillar and the left rear B-pillar. Step eight: Weld the cut of the curved plate of the roof and grind it flat to obtain the side cab roof.

[0025] Furthermore, the cutting equipment is any one of laser cutting machine, plasma cutting machine, flame cutting machine, and high-pressure water jet cutting machine.

[0026] The technical effects and advantages of this invention are as follows:

[0027] The inverted isosceles trapezoidal structures on the left and right ends of the roof frame, with their inherent stability and ability to absorb and decompose impact energy, resist the impact of loose stones from the tunnel ceiling on the roof's curved plate, thus increasing the roof's impact resistance and protecting the safety of the occupants. The waistlines of the two inverted isosceles trapezoids gradually decrease in size from top to bottom, forming the boundary outline of the driving area while ensuring that it does not obstruct the right-side driver's view. Similarly, the arrangement of the waistlines within the inverted isosceles trapezoidal structure opens up the blind spots at the lower right front and lower right rear corners of the vehicle, improving the safety of the occupants. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present invention;

[0029] Figure 2 This is the front view of the present invention;

[0030] Figure 3 yes Figure 2 The cross-sectional view shown along line AA;

[0031] Figure 4 This is a perspective view of the roof frame of the present invention;

[0032] Figure 5 This is a front view of the canopy frame of the present invention;

[0033] Figure 6 yes Figure 5 The sectional view shown is along line BB.

[0034] Figure 7 This is an unfolded view of the ceiling curved plate of the present invention;

[0035] Figure 8 This is a structural diagram of step three in implementation 3;

[0036] Figure 9 yes Figure 8 The image shown is a magnified view of a portion of region C.

[0037] In the picture:

[0038] 1. Ceiling frame; 2. Ceiling curved plate; 3. Horizontal beam; 4. Chamfered surface; 5. Diagonal beam; 6. Left rear B-pillar; 7. Left front A-pillar; 8. Right front A-pillar; 9. Right rear B-pillar; 10. Bottom beam; 11. Inner ceiling; 12. Reinforcing curved plate; 13. First base plate; 14. Second base plate; 15. Drainage eaves; 16. Cut joint; 17. Notch. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose.

[0040] Example 1

[0041] like Figure 1-6 As shown, the present invention provides a lateral cab roof. This lateral cab roof includes, for example, a roof frame 1, a roof curved plate 2, and a crossbeam 3. The roof curved plate 2 is laid along the outer contour of the roof frame 1. Specifically, the roof curved plate 2 is laid on the outer left and outer upper surfaces of the roof frame 1. The left and right surfaces of the roof frame 1 are configured into inverted isosceles trapezoidal structures using profiles and / or plates, and the upper ends of the inverted isosceles trapezoids on the left and right surfaces of the roof frame 1 are connected by the crossbeam 3 to form the roof frame 1.

[0042] Understandably, by setting the left and right ends of the canopy frame 1 into inverted isosceles trapezoidal structures, the stability inherent in the isosceles trapezoidal structure and its ability to absorb and decompose impact energy can be utilized to improve the impact resistance of the canopy curved plate 2. This allows the canopy curved plate 2 to resist the impact of loose stones on the top of the tunnel, preventing the loose stones from damaging the cab and injuring the driver, thus protecting the safety of passengers.

[0043] Compared with existing technologies, the double inverted isosceles trapezoidal structure formed by the left and right ends of the roof frame 1 allows the vehicle to comfortably arrange a safe driving and riding area within the limited lane size, obtain a wide driving field of vision, and reduce blind spots.

[0044] It should be noted that, due to the structural constraints of the side cab roof, the left side of the side cab, which is also the seat back side, is prone to collision with protruding rocks on the tunnel wall and air supply ducts and cable ducts above the tunnel wall. Therefore, a chamfered surface 4 is provided at the corner between the left elevation and the upper end of the roof frame 1. The chamfered surface 4 is as follows: Figure 3 As shown. By setting a chamfered surface 4 at the corner of the left facade and the top facade of the roof frame 1, the risk of collision between the left side of the cab and the roadway rocks, air supply ducts, and cable ducts can be avoided.

[0045] Correspondingly, a sloping beam 5 is provided at the location corresponding to the chamfered surface 4 of the ceiling frame 1 and the ceiling curved plate 2. For example... Figure 4As shown, the canopy frame 1 includes, for example: a left front A-column 7, a diagonal beam 5 connected to the left front A-column 7, a horizontal beam 3 connected to the diagonal beam 5, and a right front A-column 8 connected to the horizontal beam 3; a left rear B-column 6, a diagonal beam 5 connected to the left rear B-column 6, a horizontal beam 3 connected to the diagonal beam 5, and a right rear B-column 9 connected to the horizontal beam 3; and a bottom beam 10 disposed between the right front A-column 8 and the right rear B-column 9.

[0046] It should be noted that in other embodiments besides this one, the bottom beam 10 between the right front A pillar 8 and the right rear B pillar 9 exists within the frame of the vehicle model. Its installation method can be on-site welding or other installation methods such as bolt connection, which are not limited here.

[0047] Furthermore, there are two diagonal beams 5 and two horizontal beams 3. One end of one diagonal beam 5 overlaps the upper surface of the left rear B-pillar 6 of the ceiling frame 1, and the other end overlaps the horizontal beam 3; one end of the other diagonal beam 5 overlaps the upper surface of the left front A-pillar 7, and the other end overlaps the horizontal beam 3. The outer end of the horizontal beam 3 is the width of the ceiling frame 1, which is determined by the interface of the upper end of the diagonal beam 5.

[0048] like Figure 6 As shown, the interface on the upper end face of the inclined beam 5 extends outward at an angle relative to the interface on the lower end face of the inclined beam 5, causing the inner and outer contours of the inclined beam 5 to extend upward along the inner and outer contours of the left rear B pillar 6 and the left front A pillar 7, thereby creating an angle α between the inner contour of the inclined beam 5 and the inner contour of the crossbeam 3. For example, the value of this angle α ranges from 165° to 170°.

[0049] In summary, the inclined beam 5 is a three-dimensional geometric shape set on the roof frame 1. The crossbeam 3 connected to the inclined beam 5, in turn, connects the right front A-pillar 8 and the right rear B-pillar 9, forming an inverted isosceles trapezoidal driving visibility area between the right front A-pillar 8 and the right rear B-pillar 9, thus eliminating blind spots in existing technologies.

[0050] Furthermore, since the inclined beam 5, as described above, is set on the roof frame 1 in a three-dimensional geometric shape, when the roof curved plate 2 collides with the air supply pipe and cable pipe above the tunnel wall, the α angle of the inclined beam 5 has the ability to buffer and release the external collision force, which can reduce the contour deformation of the roof frame 1.

[0051] Secondly, relative to the seats of the vehicle, after the driver sits down, the inclined beam 5 is located above the driver's head. Therefore, when loose rocks fall or a large-scale collapse occurs on the top of the tunnel, the inclined beam 5 also has the ability to buffer and release the impact from the top of the roof, thereby providing safety performance for the passenger area and effectively protecting the passengers. Compared with the existing technology, the specifications and models of the profiles and plates used in the roof frame can be reduced, saving materials.

[0052] For example, the cross-section of the inclined beam 5 of the roof frame 1 is either rectangular or square. In this embodiment, the profile used for the roof frame 1 is a square tube with a cross-section of 70mm x 70mm and a wall thickness of 4mm.

[0053] It should be noted that in some embodiments other than this one, the roof frame 1 can also be made of sheet metal, or a combination of sheet metal and profiles can be used. For example, the inclined beam 5 is made of sheet metal, which is bent and then welded to obtain the inclined beam 5. This improves the load-bearing capacity of the inclined beam, and the bending process of the sheet metal makes it easy to obtain the geometric dimensions of the inclined beam, thus facilitating processing and manufacturing. In addition, in some embodiments, the cross-section of the inclined beam 5 can also be rectangular.

[0054] like Figure 1-3 It is known that the side cab roof also includes an inner roof 11 connected to the roof curved plate 2 and the roof frame 1. The right eaves of the inner roof 11 is connected to the right end of the roof frame 1. In this embodiment, the right eaves end face of the inner roof 11 is located behind the right end face of the roof frame 1, within a range of 30mm-50mm from the right end face of the roof frame 1, which is used to improve the rigidity of the right front A pillar 8 and the right rear B pillar 9 connected on both sides of the right eaves of the inner roof 11.

[0055] Furthermore, the upper right eave of the inner roof 11 is connected to the roof bend plate 2; the left eave of the inner roof 11 is connected to the roof bend plate 2 through a set β angle. In this way, the front end and rear end of the inner roof 11 are connected to the crossbeam 3 connected to the right front A pillar 8 and the right rear B pillar 9, respectively, thereby improving the ability of the lateral cab roof to resist impacts from the direction of travel, as well as the ability to resist deformation of the lateral cab roof caused by the lateral rollover of the vehicle.

[0056] In addition, interior reading lights, control buttons, and other cab accessories can be installed on the left eaves where the β angle is set, to improve the operating space inside the cab. For example, the value of the β angle ranges from 150° to 170°. For the driver in the driver's seat, the left eaves of the β angle can provide a comfortable operating area, thereby reducing driving fatigue by operating the cab accessories on the left eaves.

[0057] More specifically, the side cab roof also includes a reinforcing curved plate 12 attached to the inner contour of the inclined beam 5 of the roof frame 1. The upper end of the reinforcing curved plate 12 is connected to the roof curved plate 2. The reinforcing curved plate 1 extends to the crossbeam 3, the left rear B pillar 6, and the crossbeam 3 and the left front A pillar 7. Therefore, it can be seen that the reinforcing curved plate supplements the strength of the roof frame 1 and the roof curved plate 2.

[0058] Furthermore, the reinforcing bend plate 12 is provided with two arc-shaped transition notches 17. While the reinforcing bend plate provides additional strength to the roof frame 1 and the roof bend plate 2, the notches 17 can release the internal stress during the processing of the lateral cab. When the lateral cab roof is impacted by falling objects, the notches 17 can also buffer the impact force of the falling objects and prevent damage to the roof frame 1.

[0059] Furthermore, due to the different layouts of auxiliary devices within underground tunnels, it is possible that air supply ducts and cable ducts may be arranged on both sides of the tunnel end face. Therefore, the ratio of the top width of the canopy arch 2 to the nominal width of the vehicle it belongs to is within the range of 0.7-0.8. This ensures that the canopy arch 2 does not interfere with the auxiliary devices at the tunnel end face, guaranteeing driving safety. At the same time, it also provides the driver with a looking-up angle, making it easier for the driver to observe the situation to the side and above. When driving, the intersection of the tunnel arch and the sidewall can be seen through this looking-up angle. Therefore, the driver can refer to the intersection of the tunnel arch and the sidewall to move forward and reverse. The ratio of the top width of the canopy arch 2 to the nominal width of the vehicle it belongs to further ensures driving safety.

[0060] The front and rear ends of the canopy curved plate 2 are respectively provided with water guide eaves 15. The water guide eaves 15 are formed by bending a medium-thick plate and are arranged along the front and rear contours of the canopy curved plate 2. The water guide eaves 15 not only guide rainwater on the canopy, but also use their own thickness to guide small gravel that falls on the canopy along the water guide eaves, so as to ensure the safety of the driver.

[0061] Example 2

[0062] This embodiment is a further extension of Embodiment 1, and provides an underground loader. Combined with... Figure 1 and Figure 4 The first base plate 13 connects the bottom surfaces of the left front A-pillar 7 and the left rear B-pillar 6 of the side cab roof in Embodiment 1, and the second base plate 14 connects the bottom beam 10 between the right front A-pillar 8 and the right rear B-pillar 9; the first base plate 13 is connected to the left end face of the underground loader frame, and the second base plate 14 is connected to the right end face of the frame.

[0063] Example 3

[0064] This invention provides a method for manufacturing a side cab roof as shown in Embodiment 1, the method comprising at least the following steps:

[0065] Step 1: Material preparation. Based on the connection angle, length, and location of the reinforcing curved plate 12 and the roof curved plate 2 as defined in the welding drawing of the side cab roof, a slit 16 is set in the unfolded drawing of the roof curved plate 2. The roof curved plate 2 is then cut according to the unfolded drawing after the slit 16 is set using a cutting device. Figure 7As shown; at the same time, the reinforcing curved plate 12, the water guide eaves 15, and the inner ceiling 11 are also being cut;

[0066] Step 2, bending: According to the production drawings, the reinforcing bent plate 12, the water guide 15, the inner ceiling 11, and the ceiling bent plate 2 are bent respectively.

[0067] Step 3: Assemble and weld the reinforcing bend plate 12, as follows: Figure 8-9 It can be seen that, taking the cut 16 of the ceiling curved plate 2 obtained in step one and step two as the reference, the reinforcing curved plate 12 obtained in step two is assembled and welded on the ceiling curved plate 2 along the cut 16.

[0068] Step 4: Assemble and weld the inclined beam 5. Using the ceiling curved plate 2 and reinforcing curved plate 12 assembled in Step 3 as a reference, attach the inclined beam 5 to the ceiling curved plate 2 and then attach the inclined beam to the reinforcing curved plate 12. Weld the inclined beam 5 to the reinforcing curved plate 12 and the ceiling curved plate 2 to fix it in place.

[0069] Step 5: Using the fixed inclined beam 5 from Step 4 as a reference, weld the crossbeam 3 and the right front A-pillar 8 sequentially along the interface of the upper end face of the inclined beam 5; weld the left front A-pillar 7 along the interface and cut 16 of the lower end face of the inclined beam 5.

[0070] The crossbeam 3, the right rear B-pillar 9, and the bottom beam 10 between the right front A-pillar 8 and the right rear B-pillar 9 are sequentially welded along the interface of the upper end face of the inclined beam 5; the left rear B-pillar 6 is welded along the interface and the cut 16 of the lower end face of the inclined beam 5.

[0071] Step six: Weld the water guide eaves 15 and inner roof 11 obtained in step two.

[0072] Step 7: Using the left front A-pillar 7 and left rear B-pillar 6 from Step 5 as a reference, weld the bottom beam 10 between the left front A-pillar 7 and left rear B-pillar 6.

[0073] Step 8: Weld and grind the cut 16 of the roof bend plate 2 to obtain the side cab roof.

[0074] It should be noted that, in this embodiment, except for steps one, two, and three, the other steps are not in any particular order.

[0075] As can be seen from the above, the curved ceiling plate 2 with the cut 16 obtained in step two is used as the reference for the positioning of the reinforcing curved plate 12. The reinforcing curved plate 12 is then used as the positioning reference before the inclined beam 5 is welded. This ensures the accuracy of the spatial geometry of the inclined beam 5.

[0076] Using the inclined beam 5 as a positioning reference, other workpieces besides the inclined beam 5 are welded. This allows the interface on the upper end face of the inclined beam 5 to expand outward relative to the interface on the lower end face of the inclined beam 5 quickly and accurately. This extends the inner and outer contours of the inclined beam 5 upward along the inner and outer contours of the left rear B pillar 6 and the left front A pillar 7, making the α angle dimension between the inner contour of the inclined beam 5 and the inner wheel of the crossbeam 3 more accurate. This ensures that the shape of the roof frame 1 and the roof curved plate 2 after welding meets the requirements of the design drawings.

[0077] In this embodiment, the cutting equipment mentioned is any one of laser cutting machine, plasma cutting machine, flame cutting machine, and high-pressure water jet cutting machine.

[0078] The traditional process arrangement method is roughly as follows: First, the roof frame 1 is welded into a whole, and the roof curved plate 2 is attached along the roof frame 1 with the roof frame 1 as the reference. Due to the accumulated error caused by the manufacturing process, there are gaps and poor fit between the roof curved plate 2 and the roof frame 1, and the shape is deformed. Therefore, flame straightening and blunt tool straightening are used to eliminate the defects.

[0079] When the roof frame 1 is welded as a whole, it is difficult to guarantee the spatial geometry of the inclined beam 5, which requires the use of auxiliary process equipment.

[0080] Compared with traditional processes, this embodiment improves the manufacturing precision of the side cab roof, eliminates the need for auxiliary process equipment, reduces lengthy process steps, and increases production efficiency.

[0081] In the description of this invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this invention and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0082] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A lateral cab roof, comprising a roof frame (1) and a roof curved plate (2) laid along the outer left end face and outer upper end face of the outer contour of the roof frame (1), characterized in that: The left and right ends of the canopy frame (1) are inverted isosceles trapezoidal structures; the canopy frame (1) includes: left front A column (7), diagonal beam (5), crossbeam (3), right front A column (8), left rear B column (6), and right rear B column (9); there are two diagonal beams (5) and two crossbeams (3); the crossbeams (3) are connected to each other; the left front A column (7) is connected to the right front A column (9) by a set of crossbeams (3). A-pillar (8) is connected; left rear B-pillar (6) is connected to right rear B-pillar (9) via another set of crossbeams (3); bottom beam (10) is set between right front A-pillar (8) and right rear B-pillar (9); the inner contour of the inclined beam (5) of the roof frame (1) and the inner contour of the crossbeam (3) form an angle α; the value of the angle α between the inner contour of the inclined beam (5) of the roof frame (1) and the inner contour of the crossbeam (3) is in the range of 165°-170°.

2. The lateral cab roof according to claim 1, characterized in that: The lateral cab roof also includes a bottom beam (10) disposed between the left front A-pillar (7) and the left rear B-pillar (6) of the roof frame (1).

3. The lateral cab roof according to claim 1, characterized in that: The interface on the upper end face of the inclined beam (5) of the roof frame (1) extends outward relative to the interface on the lower end face of the inclined beam (5).

4. The lateral cab roof according to claim 1, characterized in that: The inner and outer contours of the inclined beam (5) of the roof frame (1) extend upward along the inner and outer contours of the left rear B pillar (6) and the left front A pillar (7).

5. The lateral cab roof according to claim 1, characterized in that: The cross-section of the inclined beam (5) of the roof frame (1) is either rectangular or square.

6. The lateral cab roof according to claim 1, characterized in that: It also includes an inner ceiling (11) connected to the ceiling curved plate (2) and the ceiling frame (1). The right eaves of the inner ceiling (11) are connected to the right end of the ceiling frame (1), the right eaves of the inner ceiling (11) are connected to the ceiling curved plate (2), and the left eaves of the inner ceiling (11) are connected to the ceiling curved plate (2) through a set β angle.

7. The lateral cab roof according to claim 6, characterized in that: The value of the β angle is in the range of 150°-170°.

8. The lateral cab roof according to claim 1, characterized in that: Water guides (15) are provided at the front and rear ends of the canopy curved plate (2).

9. The lateral cab roof according to claim 1, characterized in that: It also includes a reinforcing bend plate (12) attached to the inner contour of the inclined beam (5) of the roof frame (1), the upper end of which is connected to the roof bend plate (2).

10. The lateral cab roof according to claim 1, characterized in that: The ratio of the top width of the canopy curved plate (2) to the nominal width of the vehicle to which it belongs is in the range of 0.7-0.

8.

11. An underground loader, comprising a lateral cab roof as described in any one of claims 1-10, characterized in that: It also includes a first base plate (13) connected to the bottom surfaces of the left front A pillar (7) and the left rear B pillar (6) respectively, and a second base plate (14) connected to the bottom beam (10) between the right front A pillar (8) and the right rear B pillar (9).

12. The underground loader according to claim 11, characterized in that: The first base plate (13) is connected to the left end face of the frame, and the second base plate (14) is connected to the right end face of the frame.

13. A method for manufacturing a lateral cab roof, characterized in that, The method for manufacturing the lateral cab roof can produce a lateral cab roof as described in any one of claims 1-10, wherein the method for manufacturing the lateral cab roof includes: Step 1, material preparation: Based on the connection angle, length and location of the reinforcing bend (12) and the roof bend (2) as defined in the welding drawing of the side cab roof, a slit (16) is set in the unfolded drawing of the roof bend (2). The roof bend (2) is cut and prepared according to the unfolded drawing after setting the slit (16) using a cutting device. At the same time, the reinforcing bend (12), the water guide (15) and the inner roof (11) are also prepared. Step 2, bending: according to the production drawings, the reinforcing bent plate (12), the water guide (15), the inner ceiling (11), and the ceiling bent plate (2) are bent respectively; Step 3: Assemble and weld the reinforcing bent plate (12). Using the cut (16) of the ceiling bent plate (2) obtained in Step 1 and Step 2 as a reference, assemble and weld the reinforcing bent plate (12) obtained in Step 2 on the ceiling bent plate (2) along the cut (16). Step 4: Assemble and weld the inclined beam (5). Using the ceiling curved plate (2) and reinforcing curved plate (12) assembled in Step 3 as a reference, attach the inclined beam (5) to the ceiling curved plate (2) and then attach the inclined beam to the reinforcing curved plate (12). Weld the inclined beam (5) to the reinforcing curved plate (12) and the ceiling curved plate (2) to fix them in place. Step 5: Using the fixed inclined beam (5) from Step 4 as a reference, weld the crossbeam (3) and right front A-pillar (8) sequentially along the interface of the upper end face of the inclined beam (5); weld the left front A-pillar (7) along the interface and cut (16) of the lower end face of the inclined beam (5). Weld the crossbeam (3), the right rear B-pillar (9), and the bottom beam (10) between the right front A-pillar (8) and the right rear B-pillar (9) in sequence along the interface of the upper end face of the inclined beam (5); weld the left rear B-pillar (6) along the interface and cut (16) of the lower end face of the inclined beam (5). Step six: Weld the water guide eaves (15) and inner roof (11) obtained in step two. Step 7: Weld the bottom beam (10) between the left front A pillar (7) and the left rear B pillar (6) in Step 5 as a reference. Step 8: Weld and grind the cut (16) of the roof bend plate (2) to obtain the side cab roof.

14. The method for manufacturing the lateral cab roof according to claim 13, characterized in that: The cutting equipment can be any one of laser cutting machine, plasma cutting machine, flame cutting machine, or high-pressure water jet cutting machine.

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