Ceiling for lateral cab and underground carry-scraper

Abstract

The ceiling comprises a ceiling frame and ceiling bent plates laid on the outer left end face and the outer upper end face along the outer contour of the ceiling frame, and the left end face and the right end face of the ceiling frame are each in an inverted isosceles trapezoid shape. The method has the effects of expanding the driving view of a driver, improving the clearness of the ceiling boundary and improving the safety and comfort of the driver in somatosensory.

Description

Technical Field

[0001] The present application relates to the field of mine machinery cab technology, and in particular to a ceiling for a side cab and an underground loader. Background Art

[0002] Compared with road loaders, the operating conditions of underground loaders are more severe. Limited by the size of underground roadways, it is more difficult to design the human activity space and the layout of operating devices during the design concept stage.

[0003] Since there is no natural light in underground roadways and only lighting can be relied on, and the driver's seat is low with poor visibility, plus the road is narrow, the slope is large, and there are many curves, it is easy to collide with other vehicles and the roadway wall, injuring the equipment and personnel. Secondly, there are often floating stones on the top of the roadway, which sometimes damage the cab and injure the driver. Thirdly, due to the uneven ground or large boulders, the vehicle is prone to tipping over.

[0004] For underground loaders, such as those with models of 2m 3 and 2m 3 and below, the cab ceilings usually used are just ordinary ceilings. The advantage of such ceilings is that the view in the front and rear directions of the vehicle is better, and it is easy to observe the working state of the working devices arranged in the front and rear directions of the vehicle. The disadvantages are: there are blind spots in the left and right directions, and driving accidents are prone to occur.

[0005] More intuitively, for example, the underground loader disclosed in the Chinese design patent with the authorization announcement number CN306495922S. The combination of the color, shape, and pattern of this underground loader reveals the ceiling. The top of the ceiling is affected by the layout of the working arm hinge points, and a notch is provided at the ceiling position above the working arm hinge points, sacrificing the safety space for protecting the driver of the ceiling for the movement stroke of the working arm.

[0006] Through the combination of the color, shape, and pattern of this underground loader, it is also revealed that a column is provided in the front of the driver's seat to support the ceiling. The column is close to the center of the driver's seat, so the column affects the driving line of sight and there is a blind spot.

[0007] Combining the above two deficiencies, therefore, the cab area lacks a sense of boundary, resulting in a lack of safety and comfort in the driver's riding experience, as well as a sense of fatigue caused by psychological burden.

[0008] In view of this, the present utility model provides a ceiling for a side cab and an underground loader. Summary of the Utility Model

[0009] In view of this, the present application provides a roof for a side-mounted cab and an underground loader, which can expand the driver's field of vision, improve the clarity of the roof boundary, and improve the safety and comfort of the driver's body feeling.

[0010] In order to expand the driver's field of vision, improve the clarity of the roof boundary, and improve the safety and comfort of the driver's body feeling, the present application provides a roof for a side-mounted cab and an underground loader.

[0011] The roof for a side-mounted cab provided by the present application adopts the following technical solutions:

[0012] A roof for a side-mounted cab includes a roof frame and roof bending plates laid along the outer left end face and outer upper end face of the outer contour of the roof frame. The left end face and right end face of the roof frame are both in the shape of an inverted isosceles trapezoid.

[0013] Further, the roof frame includes a front frame and a rear frame. The front frame includes a left front A pillar, a diagonal beam connected to the left front A pillar, a cross beam connected to the diagonal beam, and a right front A pillar connected to the cross beam; the rear frame includes a left rear B pillar, a diagonal beam connected to the left rear B pillar, a cross beam connected to the diagonal beam, and a right rear B pillar connected to the cross beam.

[0014] Further, the roof frame further includes a bottom beam. One end of the bottom beam is connected to the right front A pillar, and the other end is connected to the right rear B pillar.

[0015] Further, the distance between the lower ends of the diagonal beams of the front frame is less than the distance between the upper ends of the diagonal beams of the front frame.

[0016] Further, the connection between the diagonal beam of the front frame and the left front A pillar is smooth, and the diagonal beam and the left front A pillar are in the same plane. The connection between the diagonal beam of the rear frame and the left rear B pillar is smooth, and the diagonal beam and the left rear B pillar are in the same horizontal plane.

[0017] Further, the plane where the diagonal beam and the left front A pillar are located is called the first plane, the plane where the diagonal beam and the left rear B pillar are located is called the second plane, and the plane where the cross beams of the front frame and the rear frame are located is called the third plane. The angle between the third plane and the first plane is α, and the angle between the third plane and the first plane is also α.

[0018] Further, the range of the α angle is within 165° - 170°.

[0019] Further, the cross-section of the diagonal beam is rectangular or similar to a rectangle.

[0020] Further, it further includes an inner ceiling, the inner ceiling is connected to the ceiling bent plate, and the inner ceiling is also connected to the ceiling frame.

[0021] Further, the inner ceiling has a β angle, and the range of the β angle is within 150° - 170°.

[0022] Further, it further includes a reinforcing bent plate, and the reinforcing bent plate is located at the inclined beam.

[0023] Further, the ratio of the top width of the ceiling bent plate to the nominal width of the vehicle is within the range of 0.7 - 0.8.

[0024] Further, a water guide eaves is provided on the ceiling bent plate.

[0025] An underground LHD provided by the present application adopts the following technical solutions:

[0026] An underground LHD includes an LHD body and a ceiling for a side cab as described above, and the ceiling is connected to the LHD body.

[0027] Further, the ceiling includes a left front A pillar, a left rear B pillar and a bottom beam. The bottom beam is disposed opposite to the left front A pillar and the left rear B pillar. The LHD body includes a first bottom plate and a second bottom plate. The first bottom plate is connected to the left front A pillar and the left rear B pillar of the ceiling, and the second bottom plate is connected to the bottom beam.

[0028] Further, the first bottom plate is connected to the left end face of the vehicle frame, and the second bottom plate is connected to the right end face of the vehicle frame.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] Through the stability of the inverted isosceles trapezoid structure of the left end face and the right end face of the ceiling frame, and its adsorption and decomposition of impact energy, it is used to resist the impact of the ceiling bent plate by the floating stones at the top of the roadway, improve the impact resistance of the ceiling bent plate, and thus protect the safety of the driver and passengers. The waistlines of the two inverted isosceles trapezoids gradually become smaller from top to bottom to form the boundary contour of the driving area, and at the same time, it does not block the line of sight of the right cab of the vehicle. Similarly, through the layout of the waistlines in the inverted isosceles trapezoid structure, the driving blind areas at the lower right front corner and the lower right rear corner of the vehicle are opened, improving the safety of the driver and passengers. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a perspective view of the present invention;

[0032] Figure 2 is a front view of the present invention;

[0033] Figure 3 is Figure 2 the sectional view taken along line A-A as shown;

[0034] Figure 4 is the perspective view of the ceiling frame of the present utility model;

[0035] Figure 5 is the front view of the ceiling frame of the present utility model;

[0036] Figure 6 is Figure 5 the sectional view taken along line B-B as shown.

[0037] Reference numerals: 1, ceiling frame; 2, ceiling bent plate; 3, cross beam; 4, chamfered surface; 5, inclined 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 bent plate; 13, first bottom plate; 14, second bottom plate; 15, water guide eaves; 16, notch. Detailed implementation manners

[0038] The following further elaborates on this application Figures 1-6 in conjunction with the accompanying drawings.

[0039] Embodiment 1

[0040] The embodiment of this application discloses a ceiling for a side-mounted cab.

[0041] Referring to Figures 1-6 , it includes a ceiling frame 1 and a ceiling bent plate 2 laid along the outer contour of the ceiling frame 1 on the outer left end face and the outer upper end face of the ceiling frame 1.

[0042] The ceiling frame 1 includes a first inverted isosceles trapezoid structure formed by profiles and / or plates at the left end, a second inverted isosceles trapezoid structure formed by profiles and / or plates at the right end, and a cross beam 3. One end of the cross beam 3 is connected to the upper side of the isosceles trapezoid structure on the left end face of the ceiling frame 1, and the other end is connected to the upper side of the isosceles trapezoid structure on the right end face of the ceiling frame 1.

[0043] Due to the stability of the inverted isosceles trapezoid structures on the left and right end faces of the ceiling frame 1 itself, as well as their ability to absorb and decompose impact energy, it is used to resist the impact of the ceiling bent plate 2 by floating stones at the top of the roadway, improving the impact resistance of the ceiling bent plate 2, and thus protecting the safety of the driver and passengers.

[0044] For the inverted isosceles trapezoid structure on the right end face of the ceiling frame 1, compared with the prior art, the double inverted isosceles trapezoid structures formed by the left and right end faces of the ceiling frame 1 enable the vehicle to comfortably arrange a safe driving area within the limited roadway size, obtain an open driving vision, and reduce the driving sight blind area.

[0045] Further, in this embodiment, referring to Figure 3 and Figure 4 , a chamfered surface 4 is provided at the corner of the left vertical surface and the upper end surface of the ceiling frame 1. Generally, restricted by the ceiling structure conditions, the left side of the side cab is also the side of the seat back. Therefore, the left side of the side cab is prone to collide with the protruding rocks at the roadway wall and the air supply pipes and cable pipes above the roadway wall. The chamfered surface 44 is used to avoid the risk of collision with the roadway rocks, air supply pipes, and cable pipes.

[0046] Further, in this embodiment, correspondingly, a diagonal beam 5 is provided at the position of the ceiling frame 1 corresponding to the chamfered surface 4 of the ceiling bent plate 2. The ceiling frame includes a front frame, a rear frame, and a bottom beam 10. The front frame includes a left front A-pillar 7, a diagonal beam 5 connected to the left front A-pillar 7, a cross beam 3 connected to the diagonal beam 5, and a right front A-pillar 8 connected to the cross beam 3. The rear frame includes a left rear B-pillar 6, a diagonal beam 5 connected to the left rear B-pillar 6, a cross beam 3 connected to the diagonal beam 5, and a right rear B-pillar 9 connected to the cross beam 3. One end of the bottom beam 10 is connected to the right front A-pillar 8, and the other end is connected to the right rear B-pillar 9. It should be noted that in other embodiments other than this embodiment, when the bottom beam 10 between the right front A-pillar 8 and the right rear B-pillar 9 exists in the frame of the machine type, its installation form can be on-site welding or bolt connection.

[0047] Further, in this embodiment, referring to Figure 5 and Figure 6 , one end of the diagonal beam 5 of the front frame overlaps the upper end surface of the left rear B-pillar 6 of the ceiling frame 1, and the other end overlaps one end of the cross beam 3; one end of the diagonal beam 5 of the rear frame overlaps the upper end surface of the left front A-pillar 7 of the ceiling frame 1, and the other end overlaps one end of the cross beam 3; the outer end surface of the cross beam 3 is the width of the ceiling frame 1, and this width is determined by the interface on the upper end surface of the diagonal beam 5. The interface on the upper end surface of the diagonal beam 5 extends outward relative to the interface on the lower end surface of the diagonal beam 5, that is, the distance between the lower ends of the diagonal beams 5 of the front frame and the lower ends of the diagonal beams 5 of the rear frame is less than the distance between the upper ends of the diagonal beams 5 of the front frame and the upper ends of the diagonal beams 5 of the rear frame, so that the inner and outer contours of the diagonal beam 5 extend upward along the inner and outer contours of the left rear B-pillar 6 and the left front A-pillar 7. That is, the connection between the diagonal beam 5 of the front frame and the left front A-pillar 7 is smooth, and the diagonal beam 5 and the left front A-pillar 7 are on the same plane. The connection between the diagonal beam 5 of the rear frame and the left rear B-pillar 6 is smooth, and the diagonal beam 5 and the left rear B-pillar 6 are on the same horizontal plane. The plane where the diagonal beam 5 and the left front A-pillar 7 are located is called the first plane, and the plane where the diagonal beam 5 and the left rear B-pillar 6 are located is called the second plane. The plane where the cross beam 3 of the front frame and the cross beam 3 of the rear frame are located is called the third plane. The angle between the third plane and the first plane is α, and the angle between the third plane and the first plane is also α, that is, the angle between the inner contour of the diagonal beam 5 and the inner contour of the cross beam 3 is the α angle. This α angle is in the range of 165° - 170°.

[0048] As described above, the inclined beam 5 is arranged on the ceiling frame 1 in a geometric shape in three-dimensional space. In this regard, the cross beam 3 connected by the inclined beam 5, through the right front A-pillar 8 and the right rear B-pillar 9 of the cross beam 3, forms an inverted isosceles trapezoid driving vision area between the front A-pillar and the right rear B-pillar 9 to eliminate the line-of-sight blind area of the prior art. Also, because the inclined beam 5 is arranged on the ceiling frame 1 in a geometric shape in three-dimensional space as described above, when the ceiling bent plate 2 collides with the air supply duct and the cable duct above the roadway wall, the α angle of the inclined beam 5 has the ability to buffer and release the external collision force, so that the ceiling frame 1 reduces the contour deformation. Secondly, relative to the seat of the vehicle, after the driver takes his seat, the inclined beam 5 is located above the driver's head. Therefore, when floating stones fall or large-area collapses occur on the roadway top, the inclined beam 5 also has the ability to buffer and release the impact from above the ceiling. Furthermore, the safety performance of the passenger and driver area is improved, which effectively protects the passengers and drivers. Furthermore, compared with the prior art, the specifications and models of the profiles and plates used for the ceiling frame 1 can be reduced, saving materials.

[0049] Furthermore, in this embodiment, the cross-section of the inclined beam 5 of the ceiling frame is rectangular or similar to a rectangle; the profile used for the ceiling frame 11 is a square pipe with a cross-section of 70mm×70mm and a wall thickness of 4mm.

[0050] It should be noted that in some embodiments other than this embodiment, the ceiling frame 1 can also be made of plates, or the ceiling frame can be made by combining plates and profiles. For example, the inclined beam 5 is made of plates and bent, and then the inclined beam 5 is obtained by welding it. In this way, the bearing capacity of the inclined beam 5 is effectively improved, and at the same time, the geometric dimensions of the inclined beam 5 are easily obtained by bending the plates, so it is convenient for processing and manufacturing. In addition, in some embodiments, the cross-section of the inclined beam 5 can also be rectangular.

[0051] Furthermore, in this embodiment, the ceiling further includes an inner ceiling 11 connected to the ceiling bent plate 2 and the ceiling frame. The right eaves of the inner ceiling 11 are connected to the right end of the ceiling frame. In this embodiment, the end face of the right eaves of the inner ceiling 11 is located behind the right end face of the ceiling frame 1, within the range of 30mm - 50mm from the right end face of the ceiling frame 1, for improving the rigidity of the right front A-pillar 8 and the right rear B-pillar 9 connected to both sides of the right eaves of the inner ceiling 11;

[0052] The upper end face of the right eaves of the inner ceiling 11 is connected to the ceiling bent plate 2, and the left eaves of the inner ceiling 11 are connected to the ceiling bent plate 2 through the set β angle. In this way, the front end face and the rear end face of the inner ceiling 11 are respectively connected to the cross beam 3 connected to the right front A-pillar 8 and the right rear B-pillar 9, thereby improving the ability of the ceiling to resist impacts from the traveling direction and the ability to resist the deformation of the ceiling caused by the lateral rollover of the vehicle.

[0053] Further, in this embodiment, indoor reading lights, control buttons and other cab accessories may also be provided on the left eaves of the β angle to improve the control space in the cab.

[0054] Further, in this embodiment, within the range of 150° - 170° of the β angle, for the driver relative to the driver's seat, a comfortable operation area is provided through the left eaves of the β angle, and then the cab accessories on the left eaves are controlled to relieve driving operation fatigue.

[0055] Further, in this embodiment, more specifically, the ceiling further includes a reinforcing bending plate 12 attached to the inner contour of the inclined beam 5 of the roof frame 1. The upper end of the reinforcing bending plate 12 is connected to the ceiling bending plate 2, and the reinforcing bending plate 1 also extends to the cross beam 3 and the left rear B pillar 6 respectively; and extends to the cross beam 3 and the left front A pillar 7. Therefore, it can be seen that the reinforcing bending plate supplements the strength of the roof frame 1 and the ceiling bending plate 2. The reinforcing bending plate 12 is provided with two notches 16 with arc transitions. While the reinforcing bending plate supplements the strength of the roof frame 1 and the ceiling bending plate 2, the notches 16 can release the internal stress during the machining of the lateral cab. When the ceiling is impacted by falling objects, the notches 16 can also buffer the impact force of the falling objects to prevent the roof frame 1 from being damaged.

[0056] Further, due to the different layouts of the auxiliary devices in the underground roadway, it is not excluded that air supply ducts and cable ducts are arranged on both sides of the roadway end face. Therefore, the ratio of the top width of the ceiling bending plate 2 to the nominal width of the vehicle belongs to the range of 0.7 - 0.8, so that the ceiling bending plate 2 does not interfere with the auxiliary devices on the roadway end face, ensuring driving safety. At the same time, it also provides a driving line of sight at an upward viewing angle for the driver, which is conducive to observing the situation in the upper side direction. When driving, the intersection of the roadway arch top and the side wall can be seen through this upward viewing angle. Therefore, when driving forward or backward, the intersection of the roadway arch top and the side wall can be used as a reference, and the driving safety is further ensured by the ratio of the top width of the ceiling bending plate 2 to the nominal width of the vehicle.

[0057] Water guiding eaves 15 are respectively arranged at the front end and the rear end of the ceiling bending plate 2. The water guiding eaves 15 are formed by bending medium - thickness plates and are arranged along the contours of the front end and the rear end of the ceiling bending plate 2. The water guiding eaves 15 not only guide the rainwater on the ceiling, but also use their own thickness to guide the small gravel falling on the ceiling along the water guiding eaves, thus ensuring the safety of the driver.

[0058] Embodiment 2

[0059] This application embodiment discloses an underground load - haul - dump machine.

[0060] It includes a load - haul - dump machine body and a ceiling for the lateral cab, and the ceiling is arranged on the load - haul - dump machine body.

[0061] Refer to Figures 1-6, the ceiling includes a ceiling frame 1 and ceiling bent plates 2 laid along the outer contour of the ceiling frame 1 on the outer left end face and the outer upper end face of the ceiling frame 1.

[0062] The ceiling frame 1 includes a first isosceles trapezoidal structure arranged upside down at the left end by profiles and / or plates, a second isosceles trapezoidal structure arranged upside down at the right end by profiles and / or plates, and a cross beam 3. One end of the cross beam 3 is connected to the upper side of the isosceles trapezoidal structure on the left end face of the ceiling frame 1, and the other end is connected to the upper side of the isosceles trapezoidal structure on the right end face of the ceiling frame 1.

[0063] Through the stability of the upside-down isosceles trapezoidal structures on the left end face and the right end face of the ceiling frame 1, and its adsorption and decomposition of impact energy, it is used to resist the impact of the ceiling bent plates 2 by the floating stones at the top of the roadway, improve the impact resistance of the ceiling bent plates 2, and thus protect the safety of the driver and passengers.

[0064] For the upside-down isosceles trapezoidal structure on the right end face of the ceiling frame 1, compared with the prior art, the double upside-down isosceles trapezoidal structures formed by the left end face and the right end face of the ceiling frame 1 enable the vehicle to comfortably arrange a safe driving and riding area under the limited restriction of the roadway size, obtain an open driving vision, and reduce the blind area of the driving and riding line of sight.

[0065] The scraper loader body is a common structure in the prior art, and the specific structure will not be elaborated here.

[0066] Further, in this embodiment, the scraper loader body includes a first bottom plate 13, a second bottom plate 14 and a vehicle frame. The first bottom plate 13 is connected to the left end face of the vehicle frame, the second bottom plate 14 is connected to the right end face of the vehicle frame, the first bottom plate 13 is connected to the lower ends of the left front A pillar 7 and the left rear B pillar 6 of the ceiling, and the second bottom plate 14 is connected to the bottom side of the bottom beam 10.

[0067] Further, in this embodiment, refer to Figure 3 and Figure 4 , a chamfered surface 4 is provided at the corner of the left vertical surface and the upper end surface of the ceiling frame 1. Generally speaking, restricted by the ceiling structure conditions, the left side of the side cab is also the side of the seat back, so the left side of the side cab is prone to collide with the protruding rocks at the roadway wall and the air supply pipes and cable pipes above the roadway wall. The chamfered surface 4 avoids the risk of collision with the roadway rocks and the air supply pipes and cable pipes.

[0068] Further, in this embodiment, correspondingly, a diagonal beam 5 is provided at a position of the ceiling frame 1 corresponding to the chamfered surface 4 of the ceiling bent plate 2. The ceiling frame includes a front frame, a rear frame and a bottom beam 10. The front frame includes a left front A-pillar 7, a diagonal beam 5 connected to the left front A-pillar 7, a cross beam 3 connected to the diagonal beam 5, and a right front A-pillar 8 connected to the cross beam 3. The rear frame includes a left rear B-pillar 6, a diagonal beam 5 connected to the left rear B-pillar 6, a cross beam 3 connected to the diagonal beam 5, and a right rear B-pillar 9 connected to the cross beam 3. One end of the bottom beam 10 is connected to the right front A-pillar 8, and the other end is connected to the right rear B-pillar 9. It should be noted that in other embodiments other than this embodiment, when the bottom beam 10 between the right front A-pillar 8 and the right rear B-pillar 9 exists in the frame of the model, its installation form can be on-site welding or bolt connection.

[0069] Further, in this embodiment, referring to Figure 5 and Figure 6 , one end of the diagonal beam 5 of the front frame overlaps the upper end surface of the left rear B-pillar 6 of the ceiling frame 1, and the other end overlaps one end of the cross beam 3; one end of the diagonal beam 5 of the rear frame overlaps the upper end surface of the left front A-pillar 7 of the ceiling frame 1, and the other end overlaps one end of the cross beam 3; the outer end surface of the cross beam 3 is the width of the ceiling frame 1, and this width is determined by the interface on the upper end surface of the diagonal beam 5. The interface on the upper end surface of the diagonal beam 5 extends outward relative to the interface on the lower end surface of the diagonal beam 5, that is, the distance between the lower ends of the diagonal beams 5 of the front frame and the lower ends of the diagonal beams 5 of the rear frame is less than the distance between the upper ends of the diagonal beams 5 of the front frame and the upper ends of the diagonal beams 5 of the rear frame, so that the inner and outer contours of the diagonal beam 5 extend upward along the inner and outer contours of the left rear B-pillar 6 and the left front A-pillar 7. That is, the connection between the diagonal beam 5 of the front frame and the left front A-pillar 7 is smooth, and the diagonal beam 5 and the left front A-pillar 7 are on the same plane. The connection between the diagonal beam 5 of the rear frame and the left rear B-pillar 6 is smooth, and the diagonal beam 5 and the left rear B-pillar 6 are on the same horizontal plane. The plane where the diagonal beam 5 and the left front A-pillar 7 are located is called the first plane, and the plane where the diagonal beam 5 and the left rear B-pillar 6 are located is called the second plane. The plane where the cross beam 3 of the front frame and the cross beam 3 of the rear frame are located is called the third plane. The angle between the third plane and the first plane is α, and the angle between the third plane and the first plane is also α, that is, the angle between the inner contour of the diagonal beam 5 and the inner contour of the cross beam 3 is the α angle. This α angle is in the range of 165° - 170°.

[0070] As described above, the inclined beam 5 is arranged on the ceiling frame 1 in a geometric shape in three-dimensional space. In this regard, the cross beam 3 connected by the inclined beam 5, through the right front A-pillar 8 and the right rear B-pillar 9 of the cross beam 3, forms an inverted isosceles trapezoid driving vision area between the front A-pillar and the right rear B-pillar 9 to eliminate the line of sight blind area of the prior art. Also, because the inclined beam 5 is arranged on the ceiling frame 1 in a geometric shape in three-dimensional space as described above, when the ceiling bent plate 2 collides with the air supply pipeline and cable pipeline above the roadway wall, the α angle of the inclined beam 5 has the ability to buffer and release the external collision force, reducing the contour deformation of the ceiling frame 1. Secondly, relative to the seat of the vehicle, after the driver takes his seat, the inclined beam 5 is located above the driver's head. Therefore, when floating stones fall or a large area of collapse occurs at the top of the roadway, the inclined beam 5 also has the ability to buffer and release the impact from above the ceiling. Furthermore, the safety performance of the passenger and driver area is improved, effectively protecting the passengers and drivers. Compared with the prior art, the specifications and models of the profiles and plates used for the ceiling frame 1 can be reduced, saving materials.

[0071] Furthermore, in this embodiment, the cross-section of the inclined beam 5 of the ceiling frame is rectangular or similar to a rectangle; the profile used for the ceiling frame 11 is a square tube with a cross-section of 70mm×70mm and a wall thickness of 4mm.

[0072] It should be noted that in some embodiments other than this embodiment, the ceiling frame 1 can also be made of plates, or the ceiling frame can be made by combining plates and profiles. For example, the inclined beam 5 is made of plates and bent, and then the inclined beam 5 is obtained by welding it. In this way, the bearing capacity of the inclined beam 5 is effectively improved. At the same time, the geometric dimensions of the inclined beam 5 are easily obtained by bending the plates, so it is convenient for processing and manufacturing. In addition, in some embodiments, the cross-section of the inclined beam 5 can also be rectangular.

[0073] Furthermore, in this embodiment, the ceiling further includes an inner ceiling 11 connected to the ceiling bent plate 2 and the ceiling frame. The right eaves of the inner ceiling 11 are connected to the right end of the ceiling frame. In this embodiment, the end face of the right eaves of the inner ceiling 11 is located behind the right end face of the ceiling frame 1, within the range of 30mm - 50mm from the right end face of the ceiling frame 1, for improving the rigidity of the right front A-pillar 8 and the right rear B-pillar 9 connected to both sides of the right eaves of the inner ceiling 11;

[0074] The upper end face of the right eaves of the inner ceiling 11 is connected to the ceiling bent plate 2, and the left eaves of the inner ceiling 11 are connected to the ceiling bent plate 2 through the set β angle. In this way, the front end face and the rear end face of the inner ceiling 11 are respectively connected to the cross beam 3 connected to the right front A-pillar 8 and the right rear B-pillar 9, thereby improving the ability of the ceiling to resist impacts from the traveling direction and the ability to resist the deformation of the ceiling caused by the lateral rollover of the vehicle.

[0075] Further, in this embodiment, cab accessories such as an interior reading lamp and a control button may also be provided on the left eaves of the β angle to improve the control space inside the cab.

[0076] Further, in this embodiment, the β angle is in the range of 150°-170°, so that for the driver relative to the driver's seat, through the left eaves of the β angle, a comfortable operation area is provided, and then the cab accessories on the left eaves are controlled to relieve driving operation fatigue.

[0077] Further, in this embodiment, more specifically, the ceiling further includes a reinforcing bent plate 12 attached to the inner contour of the inclined beam 5 of the roof frame 1. The upper end of the reinforcing bent plate 12 is connected to the ceiling bent plate 2, and the reinforcing bent plate 1 also extends to the cross beam 3 and the left rear B pillar 6 respectively; and extends to the cross beam 3 and the left front A pillar 7. Therefore, it can be seen that the reinforcing bent plate supplements the strength of the roof frame 1 and the ceiling bent plate 2. The reinforcing bent plate 12 is provided with two notches 16 with arc transitions. While the reinforcing bent plate supplements the strength of the roof frame 1 and the ceiling bent plate 2, the notches 16 can release the internal stress during the machining of the lateral cab. When the ceiling is impacted by falling objects, the notches 16 can also buffer the impact force of the falling objects to prevent the roof frame 1 from being damaged.

[0078] Further, due to the different layouts of the auxiliary devices in the underground roadway, it is not excluded that the air supply duct and the cable duct are arranged on both sides of the roadway end face. Therefore, the ratio of the top width of the ceiling bent plate 2 to the nominal width of the vehicle belongs to the range of 0.7-0.8, so that the ceiling bent plate 2 does not interfere with the auxiliary devices on the roadway end face, ensuring driving safety. At the same time, it also provides a driving line of sight for the driver at an upward viewing angle, which is conducive to observing the situation on the side and above. At the same time, when driving, the intersection of the roadway arch and the side wall can be seen through this upward viewing angle. Therefore, when driving forward or backward, the intersection of the roadway arch and the side wall can be used as a reference, and the driving safety is further guaranteed by the ratio of the top width of the ceiling bent plate 2 to the nominal width of the vehicle.

[0079] Water guiding eaves 15 are respectively arranged at the front end and the rear end of the ceiling bent plate 2. The water guiding eaves 15 are formed by bending medium-thickness plates and are arranged along the contours of the front end and the rear end of the ceiling bent plate 2. The water guiding eaves 15 not only guide the rainwater on the ceiling, but also use their own thickness to guide the small gravel falling on the ceiling along the water guiding eaves, thus ensuring the safety of the driver.

[0080] It should be noted that the embodiments of the present application can be arbitrarily combined into new embodiments under the condition that the solutions do not conflict and the technical solutions can coexist.

[0081] The above are all the preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A ceiling for a side-mounted cab, comprising a roof frame (1) and a ceiling bent plate (2) laid along the outer left end face and the outer upper end face of the outer contour of the roof frame, characterized in that: The left and right end faces of the roof frame (1) are both in the shape of an inverted isosceles trapezoid.

2. The ceiling according to claim 1, wherein: The roof frame (1) includes a front frame and a rear frame. The front frame includes a left front A-column (7), a diagonal beam (5) connected to the left front A-column (7), a cross beam (3) connected to the diagonal beam (5), and a right front A-column (8) connected to the cross beam (3). The rear frame includes a left rear B-column (6), a diagonal beam (5) connected to the left rear B-column (6), a cross beam (3) connected to the diagonal beam (5), and a right rear B-column (9) connected to the cross beam (3).

3. The ceiling according to claim 2, wherein: The roof frame (1) further includes a bottom beam (10). One end of the bottom beam (10) is connected to the right front A-column (8), and the other end is connected to the right rear B-column (9).

4. The ceiling according to claim 2, characterized in that: The distance between the lower ends of the diagonal beams (5) of the front frame is less than the distance between the upper ends of the diagonal beams (5) of the front frame.

5. The ceiling according to claim 2, characterized in that: The connection between the diagonal beam (5) of the front frame and the left front A-column (7) is smooth, and the diagonal beam (5) and the left front A-column (7) are on the same plane. The connection between the diagonal beam (5) of the rear frame and the left rear B-column (6) is smooth, and the diagonal beam (5) and the left rear B-column (6) are on the same horizontal plane.

6. The ceiling according to claim 2, characterized in that: The plane where the diagonal beam (5) and the left front A-column (7) are located is called the first plane. The plane where the diagonal beam (5) and the left rear B-column (6) are located is called the second plane. The plane where the cross beams (3) of the front frame and the rear frame are located is called the third plane. The included angle between the third plane and the first plane is α, and the included angle between the third plane and the first plane is also α.

7. The ceiling according to claim 6, characterized in that: The range of the α angle is within 165° - 170°.

8. The ceiling according to claim 2, characterized in that: The cross-section of the diagonal beam (5) is rectangular or similar to a rectangle.

9. The ceiling according to claim 1, characterized in that: It further includes an inner roof (11). The inner roof (11) is connected to the roof bend plate (2), and the inner roof (11) is also connected to the roof frame (1).

10. The ceiling according to claim 9, characterized in that: The inner roof (11) has a β angle, and the range of the β angle is within 150° - 170°.

11. The ceiling according to claim 2, characterized in that: It further includes a reinforcing bend plate (12), and the reinforcing bend plate (12) is located at the diagonal beam (5).

12. The ceiling according to claim 1, wherein: The ratio of the top width of the roof bend plate (2) to the nominal width of the vehicle is within the range of 0.7 - 0.

8.

13. The ceiling according to claim 1, characterized in that: A water guide eaves (15) is provided on the roof bend plate (2).

14. An underground loader, characterized in that: It includes a scraper body and a roof for a side cab as described in any one of claims 1 - 13, and the roof is connected to the scraper body.

15. The underground loader according to claim 14, characterized in that: The roof for a side cab includes a left front A-column (7), a left rear B-column (6), and a bottom beam (10). The bottom beam (10) is disposed opposite to the left front A-column (7) and the left rear B-column (6). The scraper body includes a first bottom plate (13) and a second bottom plate (14). The first bottom plate (13) is connected to the left front A-column (7) and the left rear B-column (6) of the roof, and the second bottom plate (14) is connected to the bottom beam (10).

16. The underground loader according to claim 15, wherein: The first bottom plate (13) is connected to the left end face of the vehicle frame, and the second bottom plate (14) is connected to the right end face of the vehicle frame.

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