A rollover-preventing and falling-object-preventing cab frame structure for a downhole loader
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ENSIGN HEAVY IND
- Filing Date
- 2025-07-31
- Publication Date
- 2026-07-14
Smart Images
Figure CN224495265U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of underground loader technology, specifically to a frame structure for an underground loader cab that prevents rollover and falling objects. Background Technology
[0002] Underground loaders are an important component of construction machinery. The loader cab provides excellent protection for the driver, minimizing the impact of changes in the external environment on normal operation, making its role crucial.
[0003] The working environment and conditions of underground loaders are relatively harsh. When existing loaders accidentally roll over or when objects fall from the mine and impact the top of the cab, the cab frame structure is too weak and has poor energy absorption. This fails to meet the requirements for preventing rollover and falling objects from underground loaders, resulting in a low safety factor.
[0004] Therefore, in order to address the above problems, a frame structure for the cab of an underground loader to prevent rollover and falling objects is proposed. Utility Model Content
[0005] This invention addresses the shortcomings of existing technologies by developing a frame structure for an underground loader cab designed to prevent rollover and falling objects. This invention enhances the anti-rollover and anti-falling-object performance of the underground loader cab, thereby improving the safety of the driver and passengers.
[0006] To achieve the above objectives, this utility model employs the following technical solution:
[0007] A frame structure for an anti-rollover and anti-falling object cab of an underground loader includes a cab floor plate, which is set on the upper side of the loader chassis. A seat area and a pedal area are set on the cab floor plate. The height of the seat area and the pedal area is lower than the height of the cab floor plate. A support assembly is set on the cab floor plate. The support assembly includes multiple columns, which are set on the cab floor plate. A top plate frame is set on the upper end of the columns. A reinforcing member is set between the columns and the top plate frame. A top cover is set on the upper side of the top plate frame. The orthographic projection of the top cover can cover the cab floor plate.
[0008] Preferably, the seat area is located in the middle of the cab floor, where the driver's seat is installed. The pedal area is located on both sides of the front end of the cab floor, where the accelerator pedal and brake pedal are installed respectively.
[0009] Preferably, the uprights include four columns, which are respectively set at the four corners of the cab floor. They are all made of U-shaped steel, and a blocking plate is set at the U-shaped opening. The bottom of the U-shaped steel is widened and a connecting plate is set at the bottom. The connecting plate is connected to the cab floor by bolts and nuts. A reinforcing rib is set between the U-shaped steel and the connecting plate.
[0010] Preferably, a shock absorber is installed at the bottom of the connection between the cab floor and the connecting plate, and the chassis of the loader is connected through the shock absorber.
[0011] Preferably, a middle crossbeam is installed between the two pillars on the rear side of the cab floor, and a reinforcing member is installed between the middle crossbeam and the pillars.
[0012] Preferably, the top plate frame includes an upper horizontal beam and an upper longitudinal beam. The upper horizontal beam is set at the top of two adjacent columns on the left and right, and the two ends of the upper horizontal beam are respectively locked in the U-shaped grooves of the adjacent U-shaped steel on the left and right.
[0013] Preferably, the upper longitudinal beam is set at the top of two adjacent columns, and a reinforcing member is provided between the upper longitudinal beam and the upper transverse beam.
[0014] Preferably, a connecting beam is provided between the middle of the two upper crossbeams at the front and rear, which is used to strengthen the support of the middle of the top cover.
[0015] Preferably, the reinforcing member includes a main support plate and a side support plate. The side of the main support plate is connected to the side support plate. The cross section connecting the main support plate and the side support plate is U-shaped. The side support plate is a right-angled isosceles triangle. A secondary support plate is provided at both ends of the main support plate. The secondary support plates are all oriented away from the side support plates. The angle formed between the surface of the secondary support plate and the surface of the main support plate is 135°. The surfaces of the two secondary support plates are perpendicular to each other.
[0016] As a preferred option, handles and lifting rings are also included. Handles are provided at the bottom and middle of the side of the column to facilitate the entry and exit of the operator's cab, and lifting rings are provided at the top of the side of the column.
[0017] As a preferred option, a fixed bracket is also installed on the column at the rear end of the cab floor for placing fire extinguishers.
[0018] The effects provided in the utility model description are merely those of the embodiments, and not all the effects of the utility model. The above technical solution has the following advantages:
[0019] 1. This utility model, by setting a sunken seat area and pedal area on the floor of the cab, can reduce the seating height of the driver and passengers without affecting normal driving operations. Since the space is limited in underground construction, the setting of the seat and pedal can further meet the height restrictions of the cab of the loader used in underground construction, meet the overall layout of the machine, and enable the loader to be used in more types of underground applications.
[0020] 2. This utility model improves the overall support of the column by setting a support component, widening the bottom end of the support component, and setting a blocking plate to strengthen the support of the column, thus avoiding the bending or breakage of the U-shaped steel due to uneven stress. It also sets a reinforcing rib on the side of the bottom end of the column to improve the support of the bottom end of the column, further improving the overall strength, avoiding injury to the driver and passengers, and improving safety.
[0021] 3. By setting reinforcing members between the uprights and the middle crossbeam, between the uprights and the upper crossbeam, and between the upper crossbeam and the upper longitudinal beam, and by extending auxiliary support plates at both ends of the reinforcing members, this utility model can weaken the problem of stress concentration at the ends of the reinforcing members, avoid support interruption, and improve the overall strength of the cab frame structure.
[0022] 4. This utility model sets up a top plate frame, and the two ends of the upper crossbeam of the top plate frame are inserted and locked in the U-shaped grooves of the two side columns to avoid disconnection when impacted, thus improving the stability of the connection. In addition, the connecting beam of the top plate frame is set as a grid structure to improve the overall support of the top cover and prevent deformation caused by falling objects, thus making it safer. Attached Figure Description
[0023] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.
[0024] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0025] Figure 2 This is a schematic diagram of the structure of this utility model with the top cover removed;
[0026] Figure 3 This is a partial structural schematic diagram of the support component according to an embodiment of the present utility model;
[0027] Figure 4 This is a schematic diagram of the reinforcing member in an embodiment of the present utility model;
[0028] Figure 5 The loading force-time curve in the vertical direction of the frame structure in this embodiment of the utility model;
[0029] Figure 6 This is the loading force-displacement curve in the vertical direction of the frame structure according to an embodiment of the present invention;
[0030] Figure 7 This is a lateral loading force-displacement curve of an embodiment of the present invention;
[0031] Figure 8 This is the lateral loading force-energy curve of an embodiment of the present invention.
[0032] In the diagram, 1. Cab floor; 2. Support assembly; 3. Top frame; 4. Reinforcing member; 5. Top cover; 6. Shock absorber; 7. Middle crossbeam; 8. Handle; 9. Lifting ring; 10. Fixed bracket; 11. Seat area; 12. Pedal area; 21. Column; 22. Block plate; 23. Connecting plate; 24. Reinforcing rib; 31. Upper crossbeam; 32. Upper longitudinal beam; 33. Connecting beam frame; 41. Main support plate; 42. Side support plate; 43. Secondary support plate. Detailed Implementation
[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0034] like Figures 1-4 As shown, this utility model provides a technical solution:
[0035] A frame structure for an anti-rollover and anti-falling-object cab of an underground loader includes a cab floor 1, which is set on the upper side of the loader's chassis. A seat area 11 and a pedal area 12 are provided on the cab floor 1. The seat area 11 is located in the middle of the cab floor 1 and houses the driver's seat. The pedal areas 12 are located on both sides of the front end of the cab floor 1, respectively housing the accelerator pedal and the brake pedal. The height of both the seat area 11 and the pedal area 12 is lower than the height of the cab floor 1, so that the driver's seat and pedals are recessed relative to the cab floor 1, and the recessed position does not interfere with the loader's chassis, thereby reducing the overall height of the cab and facilitating loading. The use of the carrier machine underground is more practical. The depth of the foot pedal area 12 should not exceed the average length of an adult's lower leg. The depth of the seat area 11 should be such that the driver's seat height is the same as the cab floor 1, so as not to affect the comfort of the driver and passengers. A support assembly 2 is set on the cab floor 1. The support assembly 2 includes multiple columns 21. The columns 21 are vertically set on the cab floor 1. A top plate frame 3 is set on the upper end of the columns 21. A reinforcing member 4 is set between the columns 21 and the top plate frame 3 to enhance the support strength. A top cover 5 is set on the upper side of the top plate frame 3. The front projection of the top cover 5 can cover the cab floor 1 to prevent falling objects from entering the cab.
[0036] In an optional embodiment, the uprights 21 include four columns, which are respectively located at the four corners of the cab floor 1. Each column 21 is made of U-shaped steel, and a blocking plate 22 is provided at the U-shaped opening. Preferably, the blocking plate 22 is welded and used to connect the two sides of the U-shaped opening of the U-shaped steel to improve the overall support of the U-shaped steel and prevent bending or breakage. More preferably, a section of the upper end of the U-shaped steel is left unblocked by the blocking plate 22 for attaching to the top plate frame 3; the bottom of the U-shaped steel... The bottom is widened by extending a wedge-shaped plate outward from both sides of the U-shaped steel to widen the bottom. A connecting plate 23 is also provided at the bottom. The connecting plate 23 is connected to the cab floor 1 by bolts and nuts to increase the contact area between the column 21 and the cab floor 1. A reinforcing rib 24 is also provided between the side of the U-shaped steel and the connecting plate 23. The reinforcing rib 24 is a right triangle to enhance the stability of the connection between the column 21 and the connecting plate 23, thereby improving the stability of the support and ensuring high safety.
[0037] In an optional embodiment, shock absorbers 6 are provided at the bottom of the connection between the cab floor 1 and the connecting plate 23, and the chassis of the loader is connected through the shock absorbers 6. The shock absorbers 6 are commonly used shock absorbers on the market to avoid damage to the chassis of the loader when falling objects impact it, and the economy and stability are better.
[0038] In an optional embodiment, a middle crossbeam 7 is provided between the two uprights 21 on the rear side of the cab floor 1. The middle crossbeam 7 is made of steel, and a reinforcing member 4 is provided between the middle crossbeam 7 and the uprights 21 to strengthen the integrity between the two uprights 21 on the rear side of the cab floor 1 and improve the support performance of the uprights 21.
[0039] In an optional embodiment, the top plate frame 3 includes an upper horizontal beam 31 and an upper longitudinal beam 32. Both the upper horizontal beam 31 and the upper longitudinal beam 32 are made of U-shaped steel, and the outer width of the U-shape of the upper horizontal beam 31 is consistent with the inner width of the U-shape of the column 21. The upper horizontal beam 31 is set at the top of two adjacent columns 21 on the left and right, and the two ends of the upper horizontal beam 31 are respectively locked in the U-shaped groove of the adjacent U-shaped steel on the left and right. The bottom of the upper horizontal beam 31 contacts the top of the blocking plate 22, which is preferably welded to enhance the integrity of the top plate frame 3 and the column 21.
[0040] In an optional embodiment, the upper longitudinal beam 32 is disposed at the top of two adjacent columns 21, and a reinforcing member 4 is disposed between the upper longitudinal beam 32 and the upper cross beam 31. The two ends of the upper longitudinal beam 32 are provided with narrow ends, which are snapped onto the columns 21 to prevent the two adjacent columns 21 from getting close to each other when subjected to force, and to make the upper longitudinal beam 32 and the upper cross beam 31 closer together, which facilitates the connection of the reinforcing member 4.
[0041] In an optional embodiment, a connecting beam 33 is provided between the middle of the front and rear upper crossbeams 31. The connecting beam 33 is used to strengthen the support of the middle of the top cover 5. The connecting beam 33 has a grid structure to ensure uniform stress distribution and avoid excessive deformation caused by uneven local stress, thus improving safety.
[0042] In an optional embodiment, the reinforcing member 4 includes a main support plate 41 and a side support plate 42. The side of the main support plate 41 is connected to the side support plate 42. The cross section connecting the main support plate 41 and the side support plate 42 is U-shaped, and the side support plate 42 is set in a right-angled isosceles triangle to enhance the connection stability at the corner. Both ends of the main support plate 41 are extended with secondary support plates 43, and the secondary support plates 43 are all oriented away from the side support plate 42. The angle formed between the plate surface of the secondary support plate 43 and the plate surface of the main support plate 41 is 135°. The plate surfaces of the two secondary support plates 43 are perpendicular to each other to facilitate fitting the surface of the column 21, the middle crossbeam 7, the upper crossbeam 31, or the upper longitudinal beam 32, resulting in a tighter connection. At the same time, it avoids stress concentration at the end of the main support plate 41, making the support more stable.
[0043] In an optional embodiment, the system also includes handles 8 and lifting rings 9. Handles 8 are provided at the bottom and middle of the side of the column 21 to facilitate workers' entry and exit from the cab and to provide a safe grip. Lifting rings 9 are provided at the top of the side of the column 21. The lifting rings 9 are connected by lifting equipment to lift the entire cab.
[0044] In an optional embodiment, the side walls of the column 21, the blocking plate 22, the middle crossbeam 7, the upper crossbeam 31, and the upper longitudinal beam 32 are all 8 mm thick and made of Q355B material; sheet metal guards and glass are also provided on the side of the cab to prevent dust from entering the cab.
[0045] In an optional embodiment, a fixed bracket 10 is also provided on the column 21 at the rear end of the cab floor 1. A commonly used fixed bracket can be used to place a fire extinguisher, so that the driver and passengers can easily take it in case of fire.
[0046] The anti-rollover and anti-falling object cab frame structure of the loader used in the well has passed and been certified with the anti-rollover and anti-falling object certificate. The internal space of the cab frame meets the requirements of the DLV dummy in "GB / T17771-2010 Earthmoving Machinery Falling Object Protection Structure Laboratory Test and Performance Requirements" and "GB / T17922-2014 Earthmoving Machinery Rollover Protection Structure Laboratory Test and Performance Requirements".
[0047] like Figure 5 The image shown is a graph of the force and time curves of the frame structure in the vertical direction, as follows: Figure 6 The image shown is a graph of the force and displacement curves of the frame structure in the vertical direction. Figure 7The image shown is a graph of the force and displacement curves of the frame structure in the horizontal direction, as follows: Figure 8 The image shown is a graph of the force and energy curves of the frame structure in the horizontal direction.
[0048] Working principle: The cab frame of this utility model is set on the loader for underground use to prevent debris from falling and causing injury to the driver and passengers when the loader is used underground, and to prevent possible injury to the driver and passengers in the event of an accidental rollover of the loader. When the driver and passengers enter the cab, the sunken seat and pedals can reduce the overall height of the cab, making the loader for underground use more practical.
[0049] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.
[0050] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component 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 utility model.
[0051] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0052] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0053] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A frame structure for an anti-rollover and anti-falling object cab of an underground loader, comprising a cab floor plate (1), wherein the cab floor plate (1) is disposed on the upper side of the chassis of the loader, characterized in that, A seat area (11) and a pedal area (12) are provided on the cab floor (1). The height of the seat area (11) and the pedal area (12) is lower than the height of the cab floor (1). A support assembly (2) is provided on the cab floor (1). The support assembly (2) includes multiple columns (21). The columns (21) are provided on the cab floor (1). A top plate frame (3) is provided at the upper end of the columns (21). A reinforcing member (4) is provided between the columns (21) and the top plate frame (3). A top cover (5) is provided on the upper side of the top plate frame (3). The orthographic projection of the top cover (5) can cover the cab floor (1).
2. The anti-rollover and anti-falling object cab frame structure for an underground loader according to claim 1, characterized in that: The seat area (11) is located in the middle of the cab floor (1). The seat area (11) is used to set up the driver's seat. The pedal area (12) is set on both sides of the front end of the cab floor (1), and is used to set up the accelerator pedal and the brake pedal respectively.
3. The anti-rollover and anti-falling object cab frame structure for an underground loader according to claim 2, characterized in that: The column (21) includes four columns, which are respectively set at the four corners of the cab floor (1). They are all made of U-shaped steel, and a blocking plate (22) is set at the U-shaped opening. The bottom of the U-shaped steel is widened and a connecting plate (23) is set at the bottom. The connecting plate (23) is connected to the cab floor (1) by bolts and nuts. A reinforcing rib (24) is set between the U-shaped steel and the connecting plate (23).
4. The anti-rollover and anti-falling object cab frame structure for an underground loader according to claim 3, characterized in that: A shock absorber (6) is installed at the bottom of the connection between the cab floor (1) and the connecting plate (23), and the chassis of the loader is connected through the shock absorber (6).
5. The anti-rollover and anti-falling object cab frame structure for an underground loader according to claim 4, characterized in that: A middle crossbeam (7) is installed between the two columns (21) on the rear side of the cab floor (1), and a reinforcing member (4) is installed between the middle crossbeam (7) and the columns (21).
6. The anti-rollover and anti-falling object cab frame structure for an underground loader according to claim 5, characterized in that: The top frame (3) includes an upper horizontal beam (31) and an upper longitudinal beam (32). The upper horizontal beam (31) is set at the top of two adjacent columns (21) on the left and right, and the two ends of the upper horizontal beam (31) are respectively locked in the U-shaped groove of the adjacent U-shaped steel on the left and right. The upper longitudinal beam (32) is set at the top of the two adjacent columns (21) at the front and rear, and a reinforcing member (4) is set between the upper longitudinal beam (32) and the upper cross beam (31); A connecting beam frame (33) is provided between the middle of the two upper crossbeams (31) at the front and rear. The connecting beam frame (33) is used to strengthen the support of the middle of the top cover (5).
7. The anti-rollover and anti-falling object cab frame structure for an underground loader according to claim 6, characterized in that: The reinforcing member (4) includes a main support plate (41) and a side support plate (42). The side of the main support plate (41) is connected to the side support plate (42). The cross section connecting the main support plate (41) and the side support plate (42) is U-shaped. The side support plate (42) is a right-angled isosceles triangle. A secondary support plate (43) is provided at both ends of the main support plate (41). The secondary support plates (43) are all oriented away from the side support plate (42). The angle formed between the plate surface of the secondary support plate (43) and the plate surface of the main support plate (41) is 135°. The plate surfaces of the two secondary support plates (43) are perpendicular to each other.
8. The anti-rollover and anti-falling object cab frame structure for an underground loader according to claim 7, characterized in that: It also includes handles (8) and lifting rings (9). Handles (8) are provided at the bottom and middle of the side of the column (21) to facilitate the entry and exit of the driver's cab. Lifting rings (9) are provided at the top of the side of the column (21).
9. The anti-rollover and anti-falling object cab frame structure for an underground loader according to claim 8, characterized in that: A fixed bracket (10) is also installed on the column (21) at the rear end of the cab floor (1) for placing fire extinguishers.