A dual-track dual-channel track assembly

Abstract

A dual-track, dual-channel assembly includes three rail bodies: left, middle, and right. The left, middle, and right rail bodies are parallel to each other in pairs. A first channel is formed between the left and middle rail bodies, and a second channel is formed between the middle and right rail bodies. Each of the left, middle, and right rail bodies consists of two upper and lower rail bodies, with their ends fitting together and the middle section forming a spindle-shaped structure with opposing upper and lower arches. An upper slide rail is formed between the upper left and upper middle rail bodies, and between the upper middle and upper right rail bodies. A lower slide rail is formed between the lower left and lower middle rail bodies, and between the lower middle and lower right rail bodies. Both the upper and lower slide rails slide in conjunction with the mine cars sandwiched between them, and the mine cars slide back and forth along either the first or second channel. In application, the optimized dual-track structure and redundant dual-channel design allow multiple mine cars to operate simultaneously, improving operational efficiency. Therefore, this invention not only has low manufacturing costs but also high operational efficiency.

Description

Technical Field

[0001] This invention relates to a track assembly, belonging to the field of load lifting, and particularly to a dual-track, dual-channel track assembly. Background Technology

[0002] One existing technology is a ramp hoisting transportation method, which uses a lifting mechanism on a ramp track to lift and lower objects. The objects being lifted can be ore transport containers or tandem cars. Although this method can lift and lower objects, it requires the pre-laying of a foundation with high requirements. The track structure must then be laid on the foundation before it can operate, resulting in high manufacturing costs.

[0003] Patent application number 202110114038.1, entitled "A Inclined Lifting and Crushing System for Deep Open-Pit Mines," discloses a mine car lifting method, which mentions laying tracks on steel box girders. Although this track can complete the lifting and lowering of ore, it also has the following drawbacks:

[0004] This structure can only lift or lower one mine car at a time. If multiple mine cars need to be lifted or lowered, they need to wait in line. Moreover, if a single track is damaged, work needs to be stopped for repair, resulting in low track operating efficiency.

[0005] The information disclosed in this background section is intended only to enhance understanding of the overall background of this application and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects and problems of high manufacturing cost and low operating efficiency in the prior art, and to provide a dual-track dual-channel track assembly with low manufacturing cost and high operating efficiency.

[0007] To achieve the above objectives, the technical solution of the present invention is: a double-track double-channel track assembly, the track assembly including a left track body, a middle track body, a right track body and a plurality of mine cars; the left track body, the middle track body and the right track body are parallel to each other in pairs, a first channel is formed between the left track body and the middle track body, and a second channel is formed between the middle track body and the right track body;

[0008] The left rail body includes an upper left rail body and a lower left rail body, the middle rail body includes an upper middle rail body and a lower middle rail body, and the right rail body includes an upper right rail body and a lower right rail body;

[0009] The connection between the upper left rail and the lower left rail, the upper middle rail and the lower middle rail, and the upper right rail and the lower right rail are all in the form of two ends fitting together, with the middle part presenting a spindle-shaped structure with the upper and lower arches facing each other.

[0010] The upper left rail and the upper middle rail, and the upper middle rail and the upper right rail, each form an upper slide rail;

[0011] The lower left rail and the lower middle rail, as well as the lower middle rail and the lower right rail, each form a sliding track.

[0012] The upper and lower slides are in sliding engagement with the mine cars sandwiched between them, and the mine cars slide back and forth along the first or second channel.

[0013] The overall center of gravity of the mine car during its reciprocating sliding motion is vertically downward.

[0014] The first channel is equipped with a first lifting platform and a second lifting platform, and the second channel is equipped with a third lifting platform and a fourth lifting platform; mining cars are movably connected to the first lifting platform, the second lifting platform, the third lifting platform and the fourth lifting platform;

[0015] The two ends of the first lifting platform are respectively attached to the top surfaces of the upper left rail and the upper middle rail, and reciprocate in sliding engagement along the direction of the first channel; the two ends of the second lifting platform are respectively attached to the top surfaces of the lower left rail and the lower middle rail, and reciprocate in sliding engagement along the direction of the first channel.

[0016] The two ends of the third lifting platform are respectively attached to the top surfaces of the upper middle rail and the upper right rail, and reciprocate in sliding engagement along the direction of the second channel; the two ends of the fourth lifting platform are respectively attached to the top surfaces of the lower middle rail and the lower right rail, and reciprocate in sliding engagement along the direction of the second channel.

[0017] Each of the first, second, third, and fourth lifting platforms is movably connected to a lifting frame, and the mine car is located inside the lifting frame; the height of the lifting frame is less than the maximum height of the spindle-shaped structure.

[0018] The top surfaces of the upper left rail, the upper middle rail, and the upper right rail are each provided with several first rails along their length.

[0019] The two ends of the first lifting platform are respectively attached to the first track on the top surface of the upper left rail and the upper middle rail, and reciprocate sliding with the first track; the two ends of the third lifting platform are respectively attached to the first track on the top surface of the upper middle rail and the upper right rail, and reciprocate sliding with the first track.

[0020] The top surfaces of the lower left rail, the lower middle rail, and the lower right rail are each provided with several second rails along their length.

[0021] The two ends of the second lifting platform are respectively attached to the second rails on the top surfaces of the lower left rail and the lower middle rail, and reciprocate sliding with the second rails; the two ends of the fourth lifting platform are respectively attached to the second rails on the top surfaces of the lower middle rail and the lower right rail, and reciprocate sliding with the second rails.

[0022] The upper middle rail body includes an upper middle top wall, an upper middle bottom wall, an upper middle left wall, and an upper middle right wall. The upper middle top wall, upper middle bottom wall, upper middle left wall, and upper middle right wall together form a hollow box-shaped upper cavity.

[0023] The lower rail body includes a lower top wall, a lower bottom wall, a lower left wall, and a lower right wall. The lower top wall, lower bottom wall, lower left wall, and lower right wall together form a hollow box-shaped lower cavity.

[0024] The width of the lower middle wall is greater than the width of the upper middle wall and the upper middle wall, and the width of the lower middle wall is greater than the width of the lower middle wall.

[0025] The upper left and upper right rails have the same structure as the upper middle rail, and the lower left and lower right rails have the same structure as the lower middle rail.

[0026] On the inner wall of the upper cavity, a number of first reinforcing ribs are provided along its length.

[0027] On the inner wall of the lower cavity, a number of second reinforcing ribs are provided along its length.

[0028] On the inner wall of the upper cavity, a first transverse partition is formed extending toward the axis of the upper cavity; a plurality of the first transverse partitions are evenly arranged along the length direction of the upper cavity.

[0029] On the inner wall of the lower cavity, a second transverse partition is formed extending toward the axis of the lower cavity; multiple second transverse partitions are evenly arranged along the length of the lower cavity.

[0030] Multiple first box-shaped diagonal braces are provided between the upper left rail and the lower left rail, with their two ends fixedly connected to the bottom surface of the upper left rail and the top surface of the lower left rail, respectively.

[0031] Multiple second box-shaped diagonal braces are provided between the upper middle rail body and the lower middle rail body, with their two ends fixedly connected to the bottom surface of the upper middle rail body and the top surface of the lower middle rail body, respectively.

[0032] Multiple third box-shaped diagonal braces are provided between the upper right rail and the lower right rail, with their two ends fixedly connected to the bottom surface of the upper right rail and the top surface of the lower right rail, respectively.

[0033] The second box-shaped diagonal brace includes a left box side and a right box side; the top of the left box side passes through the upper middle bottom wall and is fixedly connected to the bottom of the upper middle left wall, and the top of the right box side passes through the upper middle bottom wall and is fixedly connected to the bottom of the upper middle right wall; the bottom of both the left box side and the right box side passes through the lower middle top wall and extends into the lower cavity and is fixedly connected to the lower middle bottom wall.

[0034] The first box-type diagonal brace, the third box-type diagonal brace and the second box-type diagonal brace have the same structure.

[0035] The left rail, middle rail, and right rail are connected by multiple transverse connecting beam assemblies;

[0036] The transverse connecting beam assembly includes multiple first connecting beams; each first connecting beam includes a first trapezoidal transverse beam plate and a first left vertical beam plate and a first right vertical beam plate fixed at its two ends respectively; the first left vertical beam plate is fixedly connected to the outer side of the upper left rail and the lower left rail, and the first right vertical beam plate is fixedly connected to the outer side of the upper right rail and the lower right rail; the middle part of the first trapezoidal transverse beam plate is fixedly connected to the top surface of the upper middle top wall through a first bracket;

[0037] A second connecting beam is provided at the center of the top surface of the upper rail body; the second connecting beam includes a second trapezoidal crossbeam plate and a second left vertical beam plate and a second right vertical beam plate respectively fixed at its two ends; the top of the second left vertical beam plate is fixedly connected to the bottom surface of one end of the second trapezoidal crossbeam plate, and the bottom of the second left vertical beam plate is fixedly connected to the top surface of the middle part of the upper left rail body; the top of the second right vertical beam plate is fixedly connected to the bottom surface of the other end of the second trapezoidal crossbeam plate; the bottom of the second right vertical beam plate is fixedly connected to the top surface of the middle part of the upper right rail body; the middle part of the second trapezoidal crossbeam plate is fixedly connected to the top surface of the upper middle top wall through a second bracket.

[0038] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0039] 1. The present invention discloses a double-track, double-channel track assembly comprising three track bodies: left, middle, and right. The left, middle, and right track bodies are parallel to each other in pairs. A first channel is formed between the left and middle track bodies, and a second channel is formed between the middle and right track bodies. Each of the left, middle, and right track bodies consists of two upper and lower track bodies, with the upper and lower track bodies joined together at both ends, and the middle section forming a spindle-shaped structure with upper and lower arches facing each other. An upper slide rail is formed between the upper left and upper middle track bodies, and between the upper middle and upper right track bodies. A lower slide rail is formed between the lower left and lower middle track bodies, and between the lower middle and lower right track bodies. Both the upper and lower slide rails slide with the mine car sandwiched between them. The design involves the mine cars sliding back and forth along either the first or second track. In application, within the first or second track, one mine car moves along the top surface of the upper track while the other moves along the top surface of the lower track, allowing for simultaneous lifting and lowering operations. The track has a shuttle-shaped structure, ensuring staggered movement when the two mine cars meet to prevent collisions. Even if one track malfunctions, the remaining track can continue operating normally. This dual-track redundancy design allows the other track to handle the work even if one is unavailable, and the dual tracks can accommodate multiple mine cars simultaneously, improving operational efficiency. Therefore, this invention not only enables the lifting and lowering of mine cars but also boasts high operational efficiency.

[0040] 2. In the dual-track, dual-channel rail assembly of this invention, the left, middle, and right rails are connected by multiple transverse connecting beam assemblies. All three rails are hollow box-shaped structures, and box-shaped diagonal braces are provided between the upper and lower rails of each rail. The inner walls of the rail cavities are equipped with several reinforcing ribs and transverse diaphragms. In application, the box-beam structures of the upper and lower rails together bear the vertical load and bending moment caused by the gravity of the lifting frame. The transverse connecting beam assemblies enhance the lateral stability of the structure. This design reduces the weight of the rail itself, controls the rail dimensions, and ensures the load stability of the rail. The design is reasonable, thereby reducing the manufacturing cost of the rail assembly. Therefore, the manufacturing cost of this invention is low.

[0041] 3. In the dual-track, dual-channel rail assembly of the present invention, a plurality of first reinforcing ribs are provided on the inner wall of the upper cavity along its length; a plurality of second reinforcing ribs are provided on the inner wall of the lower cavity along its length; a first transverse partition is formed on the inner wall of the upper cavity extending toward the axis of the upper cavity; a plurality of first transverse partitions are uniformly arranged along the length of the upper cavity; a second transverse partition is formed on the inner wall of the lower cavity extending toward the axis of the lower cavity; a plurality of second transverse partitions are uniformly arranged along the length of the lower cavity. In application, this design ensures the structural strength of the rail body and reduces manufacturing costs by providing a plurality of reinforcing ribs and partitions on the inner wall of the cavities. Therefore, the present invention not only ensures structural strength but also reduces manufacturing costs. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of the structure of the present invention.

[0043] Figure 2 This is a schematic diagram of the upper and lower rails in this invention.

[0044] Figure 3 This is a schematic diagram of the upper and lower rails and the box-shaped diagonal brace in this invention.

[0045] Figure 4 This is a schematic diagram of the lifting platform, lifting frame, and mine car in this invention.

[0046] Figure 5 This is a schematic diagram of the structure of the first connecting beam in this invention.

[0047] Figure 6 This is a schematic diagram of the structure of the second connecting beam in this invention.

[0048] In the diagram: Left rail 1, upper left rail 101, lower left rail 102, first box-shaped diagonal brace 103, spindle-shaped structure 104, upper slide rail 105, lower slide rail 106, left box side 1031, right box side 1032, middle rail 2, upper middle rail 201, upper middle top wall 2011, upper middle bottom wall 2012, upper middle left wall 2013, upper middle right wall 2014, upper cavity 2015, first reinforcing rib 2016, first transverse partition 2017, lower middle rail 202, second box-shaped diagonal brace 203, lower middle top wall 2021, lower middle bottom wall 2022, lower middle left wall 2023, lower middle right wall 2024, lower cavity 2025, second reinforcing rib 2026, second transverse partition 2 027, Right rail body 3, Upper right rail body 301, Lower right rail body 302, Third box-type diagonal brace 303, Horizontal connecting beam assembly 4, First connecting beam 41, First trapezoidal crossbeam plate 411, First left vertical beam plate 412, First right vertical beam plate 413, First support 414, Second connecting beam 42, Second trapezoidal crossbeam plate 421, Second left vertical beam plate 422, Second right vertical beam plate 423, Second support 424, First channel 5, First lifting platform 51, Second lifting platform 52, Second channel 6, Third lifting platform 61, Fourth lifting platform 62, Lifting frame 7, First track 8, Second track 81, Mine car 9, First support 10, Second support 11, Third support 12. Detailed Implementation

[0049] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0050] See Figure 1 — Figure 6A dual-track dual-channel track assembly, the track assembly includes a left track body 1, a middle track body 2, a right track body 3 and several mine cars 9; the left track body 1, the middle track body 2 and the right track body 3 are parallel to each other, a first channel 5 is formed between the left track body 1 and the middle track body 2, and a second channel 6 is formed between the middle track body 2 and the right track body 3.

[0051] The left rail body 1 includes an upper left rail body 101 and a lower left rail body 102, the middle rail body 2 includes an upper middle rail body 201 and a lower middle rail body 202, and the right rail body 3 includes an upper right rail body 301 and a lower right rail body 302.

[0052] The connection between the upper left rail 101 and the lower left rail 102, the upper middle rail 201 and the lower middle rail 202, and the upper right rail 301 and the lower right rail 302 are all in the form of the two ends fitting together, and the middle part presents a shuttle-shaped structure 104 with the upper and lower arches facing each other.

[0053] The upper left rail 101 and the upper middle rail 201, and the upper middle rail 201 and the upper right rail 301 each form an upper slide rail 105;

[0054] The lower left rail 102 and the lower middle rail 202, and the lower right rail 302, each form a sliding track 106.

[0055] The upper slide rail 105 and the lower slide rail 106 are in sliding engagement with the mine car 9 sandwiched between them, and the mine car 9 reciprocates in sliding engagement along the first channel 5 or the second channel 6.

[0056] The center of gravity of the mine car 9 is vertically downward when it reciprocates.

[0057] The first channel 5 is provided with a first lifting platform 51 and a second lifting platform 52, and the second channel 6 is provided with a third lifting platform 61 and a fourth lifting platform 62; a mine car 9 is movably connected to the first lifting platform 51, the second lifting platform 52, the third lifting platform 61 and the fourth lifting platform 62.

[0058] The two ends of the first lifting platform 51 are respectively attached to the top surfaces of the upper left rail 101 and the upper middle rail 201, and reciprocate sliding along the direction of the first channel 5; the two ends of the second lifting platform 52 are respectively attached to the top surfaces of the lower left rail 102 and the lower middle rail 202, and reciprocate sliding along the direction of the first channel 5.

[0059] The two ends of the third lifting platform 61 are respectively attached to the top surfaces of the upper middle rail 201 and the upper right rail 301, and reciprocate in sliding engagement along the direction of the second channel 6; the two ends of the fourth lifting platform 62 are respectively attached to the top surfaces of the lower middle rail 202 and the lower right rail 302, and reciprocate in sliding engagement along the direction of the second channel 6.

[0060] The first lifting platform 51, the second lifting platform 52, the third lifting platform 61 and the fourth lifting platform 62 are all movably connected to the bottom of the lifting frame 7, and the mine car 9 is located inside the lifting frame 7; the height of the lifting frame 7 is less than the maximum height of the shuttle-shaped structure 104.

[0061] The top surfaces of the upper left rail body 101, the upper middle rail body 201, and the upper right rail body 301 are each provided with a number of first rails 8 along their length direction.

[0062] The two ends of the first lifting platform 51 are respectively attached to the first track 8 on the top surface of the upper left track 101 and the upper middle track 201, and reciprocate sliding with the first track 8; the two ends of the third lifting platform 61 are respectively attached to the first track 8 on the top surface of the upper middle track 201 and the upper right track 301, and reciprocate sliding with the first track 8.

[0063] The top surfaces of the lower left rail body 102, the lower middle rail body 202, and the lower right rail body 302 are each provided with a number of second rails 81 along their length direction;

[0064] The two ends of the second lifting platform 52 are respectively attached to the second track 81 on the top surface of the lower left track 102 and the lower middle track 202, and reciprocate with the second track 81; the two ends of the fourth lifting platform 62 are respectively attached to the second track 81 on the top surface of the lower middle track 202 and the lower right track 302, and reciprocate with the second track 81.

[0065] The upper rail body 201 includes an upper top wall 2011, an upper bottom wall 2012, an upper left wall 2013, and an upper right wall 2014. The upper top wall 2011, upper bottom wall 2012, upper left wall 2013, and upper right wall 2014 together form a hollow box-shaped upper cavity 2015.

[0066] The lower rail body 202 includes a lower top wall 2021, a lower bottom wall 2022, a lower left wall 2023, and a lower right wall 2024. The lower top wall 2021, lower bottom wall 2022, lower left wall 2023, and lower right wall 2024 together form a hollow box-shaped lower cavity 2025.

[0067] The width of the lower middle wall 2022 is greater than the width of the upper middle wall 2011 and the upper middle wall 2012, and the width of the lower middle wall 2021 is greater than the width of the lower middle wall 2022.

[0068] The upper left rail 101, upper right rail 301 and upper middle rail 201 have the same structure, and the lower left rail 102, lower right rail 302 and lower middle rail 202 have the same structure.

[0069] On the inner wall of the upper cavity 2015, a plurality of first reinforcing ribs 2016 are provided along its length.

[0070] On the inner wall of the lower cavity 2025, a plurality of second reinforcing ribs 2026 are provided along its length.

[0071] On the inner wall of the upper cavity 2015, a first transverse partition 2017 is formed extending toward the axis of the upper cavity; a plurality of the first transverse partitions 2017 are evenly arranged along the length direction of the upper cavity.

[0072] On the inner wall of the lower cavity 2025, a second transverse partition 2027 is formed extending toward the axis of the lower cavity; multiple second transverse partitions 2027 are evenly arranged along the length direction of the lower cavity.

[0073] Multiple first box-shaped diagonal braces 103 are provided between the upper left rail body 101 and the lower left rail body 102, and their two ends are fixedly connected to the bottom surface of the upper left rail body 101 and the top surface of the lower left rail body 102, respectively.

[0074] Multiple second box-shaped diagonal braces 203 are provided between the upper middle rail body 201 and the lower middle rail body 202, with their two ends fixedly connected to the bottom surface of the upper middle rail body 201 and the top surface of the lower middle rail body 202, respectively.

[0075] Multiple third box-shaped diagonal braces 303 are provided between the upper right rail body 301 and the lower right rail body 302, with their two ends fixedly connected to the bottom surface of the upper right rail body 301 and the top surface of the lower right rail body 302, respectively.

[0076] The second box-shaped diagonal brace 203 includes a left box side 1031 and a right box side 1032; the top end of the left box side 1031 passes through the upper middle bottom wall 2012 and is fixedly connected to the bottom end of the upper middle left wall 2013; the top end of the right box side 1032 passes through the upper middle bottom wall 2012 and is fixedly connected to the bottom end of the upper middle right wall 2014; the bottom ends of both the left box side 1031 and the right box side 1032 pass through the lower middle top wall 2021 and extend into the lower cavity 2025 and are fixedly connected to the lower middle bottom wall 2022.

[0077] The first box-type diagonal brace 103, the third box-type diagonal brace 303 and the second box-type diagonal brace 203 have the same structure.

[0078] The left rail body 1, the middle rail body 2 and the right rail body 3 are connected by multiple transverse connecting beam assemblies 4;

[0079] The transverse connecting beam assembly 4 includes multiple first connecting beams 41; each first connecting beam 41 includes a first trapezoidal transverse beam plate 411 and a first left vertical beam plate 412 and a first right vertical beam plate 413 respectively fixed at its two ends; the first left vertical beam plate 412 is fixedly connected to the outer side of the upper left rail 101 and the lower left rail 102, and the first right vertical beam plate 413 is fixedly connected to the outer side of the upper right rail 301 and the lower right rail 302; the middle part of the first trapezoidal transverse beam plate 411 is fixedly connected to the top surface of the upper middle top wall 2011 through a first bracket 414;

[0080] A second connecting beam 42 is provided at the center of the top surface of the upper rail 201; the second connecting beam 42 includes a second trapezoidal crossbeam plate 421 and a second left vertical beam plate 422 and a second right vertical beam plate 423 respectively fixed at its two ends; the top of the second left vertical beam plate 422 is fixedly connected to the bottom surface of one end of the second trapezoidal crossbeam plate 421, and the bottom of the second left vertical beam plate 422 is fixedly connected to the top surface of the middle part of the upper left rail 101; the top of the second right vertical beam plate 423 is fixedly connected to the bottom surface of the other end of the second trapezoidal crossbeam plate 421; the bottom of the second right vertical beam plate 423 is fixedly connected to the top surface of the middle part of the upper right rail 301; the middle part of the second trapezoidal crossbeam plate 421 is fixedly connected to the top surface of the upper middle top wall 2011 through a second bracket 424.

[0081] The principle of this invention is explained as follows:

[0082] The spindle-shaped structure is as follows: the left and right ends are flat and close together, one of the middle parts arches upward and the other arches downward, and the arched parts are set opposite each other to form a spindle-shaped structure 104.

[0083] In this invention, a dual-track, dual-channel assembly comprises two upper track bodies forming an upper running track and two lower track bodies forming a lower running track within a single channel. The channel contains two running tracks for the operation of upper and lower lifting frames. At the starting and ending points of the lifting operation, the upper and lower track bodies are connected. After a certain distance from the starting and ending points, the upper and lower track bodies gradually separate, creating a height difference and forming a spindle-shaped structure. The upper and lower track assemblies are connected by box beams. In the middle, the distance between the upper and lower track bodies is at its maximum, with the height difference slightly exceeding the height of the lifting frame, while maintaining a safety distance. This ensures that lifting frames moving upwards and downwards simultaneously within the same channel only converge at the point of greater height in the middle, without interfering with each other. One of the upper and lower running tracks can be used for the upward movement of a fully loaded ore car, while the other can be used for the downward movement of an empty ore car; both upward and downward movements can occur simultaneously.

[0084] Example 1:

[0085] See Figure 1 — Figure 6 A dual-track, dual-channel rail assembly includes a left rail body 1, a middle rail body 2, a right rail body 3, and several mine cars 9. The left rail body 1, middle rail body 2, and right rail body 3 are parallel to each other, with a first channel 5 formed between the left rail body 1 and the middle rail body 2, and a second channel 6 formed between the middle rail body 2 and the right rail body 3. The left rail body 1 includes an upper left rail body 101 and a lower left rail body 102; the middle rail body 2 includes an upper middle rail body 201 and a lower middle rail body 202; and the right rail body 3 includes an upper right rail body 301 and a lower right rail body 302. The upper left rail body 101 and the lower left rail body 102, and the upper middle rail body 201 and the lower middle rail body 202 are connected. Between the upper right rail 301 and the lower right rail 302, the two ends are fitted together, and the middle part presents a shuttle-shaped structure 104 with the upper and lower arches facing each other. The upper left rail 101 and the upper middle rail 201, and the upper middle rail 201 and the upper right rail 301 are each sandwiched to form an upper slide rail 105. The lower left rail 102 and the lower middle rail 202, and the lower middle rail 202 and the lower right rail 302 are each sandwiched to form a lower slide rail 106. The upper slide rail 105 and the lower slide rail 106 are in sliding engagement with the mine car 9 sandwiched between them, and the mine car 9 reciprocates in sliding engagement along the first channel 5 or the second channel 6.

[0086] In application, the upper rail 201 has a structure with straight front and rear ends and a gradually upward arching middle section. The lower rail 202 has a structure with straight front and rear ends and a gradually downward arching middle section. The upper rail 201 and the lower rail 202 fit together vertically, forming a spindle-shaped structure with straight ends and a gradually upward and downward arching middle section. The structures of the three rails are identical. During operation, the mine car 9 runs along the trajectory of the upper slide 105 or the lower slide 106. That is, it first passes through a straight section and then gradually climbs upward, then gradually descends or gradually descends and then gradually climbs upward, and finally passes through a straight section again. If two mine cars run simultaneously in the same channel, and one mine car 9 runs from high to low on the upper slide 105, the other mine car must run from low to high on the lower slide 106. The two mine cars meet at the middle of the arched section of the rail. Two mine cars cannot coexist at the same end of the same channel.

[0087] Example 2:

[0088] The basic content is the same as in Example 1, except that:

[0089] The center of gravity of the mine car 9 is vertically downward when it reciprocates.

[0090] In application, when the mine car 9 is running, its center of gravity is always vertically downward under the action of gravity, so as to prevent the mine car 9 from overturning during the climbing or lowering process.

[0091] Example 3:

[0092] The basic content is the same as in Example 2, except that:

[0093] The first channel 5 is equipped with a first lifting platform 51 and a second lifting platform 52, and the second channel 6 is equipped with a third lifting platform 61 and a fourth lifting platform 62. Mine cars 9 are movably connected to each of the first, second, third, and fourth lifting platforms 51 and 62. The two ends of the first lifting platform 51 are respectively attached to the top surfaces of the upper left rail 101 and the upper middle rail 201, and slide back and forth along the direction of the first channel 5. The two ends of the second lifting platform 52 are respectively attached to the top surfaces of the lower left rail 102 and the lower middle rail 202, and slide back and forth along the direction of the first channel 5. The third lifting platform 61 has two ends that overlap the top surfaces of the upper middle rail 201 and the upper right rail 301, respectively, and slides back and forth along the direction of the second channel 6. The fourth lifting platform 62 has two ends that overlap the top surfaces of the lower middle rail 202 and the lower right rail 302, respectively, and slides back and forth along the direction of the second channel 6. A lifting frame 7 is movably connected below the first lifting platform 51, the second lifting platform 52, the third lifting platform 61, and the fourth lifting platform 62, and the mine car 9 is located within the lifting frame 7. The height of the lifting frame 7 is less than the maximum height of the shuttle-shaped structure 104. Preferably, the connection between the lifting frame 7 and the lifting platform is a movable connection, and the center of gravity of the lifting frame 7 can remain vertically downward under the action of gravity.

[0094] In application, the mine car 9 drives into the lifting frame 7, and the lifting frame 7 moves back and forth along the surface of the upper or lower rail in the first channel 5 or the second channel 6. Since the lifting frame 7 is not fixedly connected to the lifting platform, its center of gravity is constantly adjusted under the action of gravity during the lifting or lowering process, keeping it vertically downward, so as to prevent the mine car 9 in the lifting frame 7 from overturning due to the change of center of gravity during climbing or lowering.

[0095] Example 4:

[0096] The basic content is the same as in Example 3, except that:

[0097] The upper left rail 101, the upper middle rail 201, and the upper right rail 301 are each provided with a plurality of first tracks 8 along their length on both sides of their top surfaces; the two ends of the first lifting platform 51 respectively overlap the first tracks 8 on the top surfaces of the upper left rail 101 and the upper middle rail 201, and reciprocate with the first tracks 8; the two ends of the third lifting platform 61 respectively overlap the first tracks 8 on the top surfaces of the upper middle rail 201 and the upper right rail 301, and reciprocate with the first tracks 8; Several second tracks 81 are provided on both sides of the top surface of the lower left track 102, the lower middle track 202, and the lower right track 302 along their length direction; the two ends of the second lifting platform 52 are respectively attached to the second tracks 81 on the top surface of the lower left track 102 and the lower middle track 202, and reciprocate with the second tracks 81; the two ends of the fourth lifting platform 62 are respectively attached to the second tracks 81 on the top surface of the lower middle track 202 and the lower right track 302, and reciprocate with the second tracks 81.

[0098] Preferably, both the first track 8 and the second track 81 are strip-shaped protrusions. Both ends of the first lifting platform 51, the first lifting platform 52, the third lifting platform 61 and the third lifting platform 62 are provided with pulleys. The surface of the pulleys is provided with groove structures that match the strip-shaped protrusions. The strip-shaped protrusions and the groove structures are coupled to each other, and the lifting platforms slide along the strip-shaped protrusions.

[0099] Example 5:

[0100] The basic content is the same as in Example 1, except that:

[0101] The upper middle track body 201 includes an upper middle top wall 2011, an upper middle bottom wall 2012, an upper middle left wall 2013, and an upper middle right wall 2014. The upper middle top wall 2011, upper middle bottom wall 2012, upper middle left wall 2013, and upper middle right wall 2014 together form a hollow box-shaped upper cavity 2015; the lower middle track body 202 includes a lower middle top wall 2021, a lower middle bottom wall 2022, and an upper middle right wall 2014. The lower left wall 2023 and the lower middle right wall 2024, together with the lower middle top wall 2021, the lower middle bottom wall 2022, the lower middle left wall 2023, and the lower middle right wall 2024, form a hollow box-shaped lower cavity 2025; the width of the lower middle bottom wall 2022 is greater than the width of the upper middle top wall 2011 and the upper middle bottom wall 2012, and the width of the lower middle top wall 2021 is greater than the width of the lower middle bottom wall 2022. The upper left rail 101, upper right rail 301 and upper middle rail 201 have the same structure, and the lower left rail 102, lower right rail 302 and lower middle rail 202 have the same structure; a plurality of first reinforcing ribs 2016 are provided on the inner wall of the upper cavity 2015 along its length direction; a plurality of second reinforcing ribs 2026 are provided on the inner wall of the lower cavity 2025 along its length direction; a first transverse partition 2017 is formed on the inner wall of the upper cavity 2015 extending toward the axis of the upper cavity; a plurality of first transverse partitions 2017 are evenly arranged along the length direction of the upper cavity; a second transverse partition 2027 is formed on the inner wall of the lower cavity 2025 extending toward the axis of the lower cavity; a plurality of second transverse partitions 2027 are evenly arranged along the length direction of the lower cavity.

[0102] Preferably, the width of the middle rail body 2 is wider than the width of the left rail body 1 and the right rail body 3, and the structural strength of the middle rail body 2 is stronger than that of the left rail body 1 and the right rail body 3.

[0103] In application, since the middle rail body 2 needs to support the mine cars in both channels, its structural strength should be appropriately increased.

[0104] Example 6:

[0105] The basic content is the same as in Example 1, except that:

[0106] The bottom surface of one end of the lower left rail 102, the lower middle rail 202, and the lower right rail 302 is provided with a first support 10, and the axis of the first support 10 is on the same horizontal line; the top surface of the other end of the upper left rail 102, the upper middle rail 202, and the upper right rail 302 is provided with a second support 11, and the axis of the second support 11 is on the same horizontal line; the bottom surface of the middle part of the lower left rail 102, the lower middle rail 202, and the lower right rail 302 is provided with a third support 12, and the axis of the third support 12 is on the same horizontal line.

[0107] Example 7:

[0108] The basic content is the same as in Example 1, except that:

[0109] The left rail body 1, the middle rail body 2 and the right rail body 3 are connected by multiple transverse connecting beam assemblies 4; preferably, the transverse connecting beam assemblies 4 are all box-shaped structures, with several reinforcing ribs and transverse diaphragms inside, which further reduces the weight while ensuring structural strength.

[0110] The above description is only a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. Any equivalent modifications or changes made by those skilled in the art based on the content disclosed in the present invention should be included within the scope of protection set forth in the claims.

Claims

1. A dual-track, dual-channel track assembly, characterized in that: The track assembly includes a left track body (1), a middle track body (2), a right track body (3), and several mine cars (9); the left track body (1), the middle track body (2), and the right track body (3) are parallel to each other, a first channel (5) is formed between the left track body (1) and the middle track body (2), and a second channel (6) is formed between the middle track body (2) and the right track body (3); The left rail body (1) includes the upper left rail body (101) and the lower left rail body (102), the middle rail body (2) includes the upper middle rail body (201) and the lower middle rail body (202), and the right rail body (3) includes the upper right rail body (301) and the lower right rail body (302). The connection between the upper left rail (101) and the lower left rail (102), the upper middle rail (201) and the lower middle rail (202), and the upper right rail (301) and the lower right rail (302) are all in the form of the two ends fitting together, and the middle part presents a shuttle-shaped structure (104) with the upper and lower arches facing each other. The upper left rail (101) and the upper middle rail (201) are each sandwiched together to form an upper slide rail (105). The lower left rail (102) and the lower middle rail (202) are each sandwiched together to form a sliding track (106). The upper slide (105) and lower slide (106) are in sliding engagement with the mine car (9) sandwiched between them, and the mine car (9) slides back and forth along the first channel (5) or the second channel (6); The first channel (5) is provided with a first lifting platform (51) and a second lifting platform (52), and the second channel (6) is provided with a third lifting platform (61) and a fourth lifting platform (62); a mine car (9) is movably connected to the first lifting platform (51), the second lifting platform (52), the third lifting platform (61) and the fourth lifting platform (62); The two ends of the first lifting platform (51) are respectively attached to the top surfaces of the upper left rail (101) and the upper middle rail (201), and reciprocate sliding along the direction of the first channel (5); the two ends of the second lifting platform (52) are respectively attached to the top surfaces of the lower left rail (102) and the lower middle rail (202), and reciprocate sliding along the direction of the first channel (5); The two ends of the third lifting platform (61) are respectively attached to the top surfaces of the upper middle rail (201) and the upper right rail (301), and reciprocate sliding along the direction of the second channel (6); the two ends of the fourth lifting platform (62) are respectively attached to the top surfaces of the lower middle rail (202) and the lower right rail (302), and reciprocate sliding along the direction of the second channel (6).

2. The dual-track, dual-channel track assembly according to claim 1, characterized in that: The center of gravity of the mine car (9) is vertically downward when it slides back and forth.

3. A dual-track, dual-channel rail assembly according to claim 1, characterized in that: The first lifting platform (51), the second lifting platform (52), the third lifting platform (61) and the fourth lifting platform (62) are all movably connected to the bottom of the lifting frame (7), and the mine car (9) is located inside the lifting frame (7); the height of the lifting frame (7) is less than the maximum height of the shuttle structure (104).

4. A dual-track, dual-channel track assembly according to claim 1, characterized in that: The top surfaces of the upper left rail (101), the upper middle rail (201), and the upper right rail (301) are each provided with a number of first rails (8) along their length direction. The two ends of the first lifting platform (51) are respectively attached to the first track (8) on the top surface of the upper left rail (101) and the upper middle rail (201), and reciprocate sliding with the first track (8); the two ends of the third lifting platform (61) are respectively attached to the first track (8) on the top surface of the upper middle rail (201) and the upper right rail (301), and reciprocate sliding with the first track (8); The top surfaces of the lower left rail (102), the lower middle rail (202), and the lower right rail (302) are each provided with a number of second rails (81) along their length direction. The two ends of the second lifting platform (52) are respectively attached to the second track (81) on the top surface of the lower left rail (102) and the lower middle rail (202), and reciprocate sliding with the second track (81); the two ends of the fourth lifting platform (62) are respectively attached to the second track (81) on the top surface of the lower middle rail (202) and the lower right rail (302), and reciprocate sliding with the second track (81).

5. A dual-track, dual-channel track assembly according to any one of claims 1-4, characterized in that: The upper rail body (201) includes an upper top wall (2011), an upper bottom wall (2012), an upper left wall (2013), and an upper right wall (2014). The upper top wall (2011), upper bottom wall (2012), upper left wall (2013), and upper right wall (2014) together form a hollow box-shaped upper cavity (2015). The lower rail body (202) includes a lower top wall (2021), a lower bottom wall (2022), a lower left wall (2023), and a lower right wall (2024). The lower top wall (2021), lower bottom wall (2022), lower left wall (2023), and lower right wall (2024) together form a hollow box-shaped lower cavity (2025). The width of the lower middle wall (2022) is greater than the width of the upper middle wall (2011) and the upper middle wall (2012), and the width of the lower middle wall (2021) is greater than the width of the lower middle wall (2022); The upper left rail (101), upper right rail (301) and upper middle rail (201) have the same structure, and the lower left rail (102), lower right rail (302) and lower middle rail (202) have the same structure.

6. A dual-track, dual-channel track assembly according to claim 5, characterized in that: On the inner wall of the upper cavity (2015), a number of first reinforcing ribs (2016) are provided along its length. On the inner wall of the lower cavity (2025), a number of second reinforcing ribs (2026) are provided along its length. On the inner wall of the upper cavity (2015), a first transverse partition (2017) is formed extending toward the axis of the upper cavity; a plurality of the first transverse partitions (2017) are evenly arranged along the length direction of the upper cavity; On the inner wall of the lower cavity (2025), a second transverse partition (2027) is formed extending toward the axis of the lower cavity; a plurality of the second transverse partitions (2027) are evenly arranged along the length direction of the lower cavity.

7. A dual-track, dual-channel track assembly according to claim 6, characterized in that: Multiple first box-shaped diagonal braces (103) are provided between the upper left rail (101) and the lower left rail (102), and their two ends are fixedly connected to the bottom surface of the upper left rail (101) and the top surface of the lower left rail (102), respectively. Multiple second box-shaped diagonal braces (203) are provided between the upper middle rail body (201) and the lower middle rail body (202), and their two ends are fixedly connected to the bottom surface of the upper middle rail body (201) and the top surface of the lower middle rail body (202), respectively. Multiple third box-shaped diagonal braces (303) are provided between the upper right rail (301) and the lower right rail (302), and their two ends are fixedly connected to the bottom surface of the upper right rail (301) and the top surface of the lower right rail (302), respectively.

8. A dual-track, dual-channel track assembly according to claim 7, characterized in that: The second box-type diagonal brace (203) includes a left box side (1031) and a right box side (1032); the top of the left box side (1031) passes through the upper middle bottom wall (2012) and is fixedly connected to the bottom of the upper middle left wall (2013); the top of the right box side (1032) passes through the upper middle bottom wall (2012) and is fixedly connected to the bottom of the upper middle right wall (2014); the bottom of both the left box side (1031) and the right box side (1032) passes through the lower middle top wall (2021) and extends into the lower cavity (2025) and is fixedly connected to the lower middle bottom wall (2022); The first box-type diagonal brace (103), the third box-type diagonal brace (303), and the second box-type diagonal brace (203) have the same structure.

9. A dual-track, dual-channel track assembly according to claim 8, characterized in that: The left rail (1), the middle rail (2) and the right rail (3) are connected by multiple transverse connecting beam assemblies (4); The transverse connecting beam assembly (4) includes multiple first connecting beams (41); the first connecting beam (41) includes a first trapezoidal transverse beam plate (411) and a first left vertical beam plate (412) and a first right vertical beam plate (413) respectively fixed at its two ends; the first left vertical beam plate (412) is fixedly connected to the outer side of the upper left rail (101) and the lower left rail (102), and the first right vertical beam plate (413) is fixedly connected to the outer side of the upper right rail (301) and the lower right rail (302); the middle part of the first trapezoidal transverse beam plate (411) is fixedly connected to the top surface of the upper middle top wall (2011) through a first bracket (414); A second connecting beam (42) is provided in the middle of the top surface of the upper rail (201); the second connecting beam (42) includes a second trapezoidal crossbeam plate (421) and a second left vertical beam plate (422) and a second right vertical beam plate (423) respectively fixed at its two ends; the top of the second left vertical beam plate (422) is fixedly connected to the bottom surface of one end of the second trapezoidal crossbeam plate (421), and the bottom of the second left vertical beam plate (422) is fixedly connected to the top surface of the middle part of the upper left rail (101); the top of the second right vertical beam plate (423) is fixedly connected to the bottom surface of the other end of the second trapezoidal crossbeam plate (421); the bottom of the second right vertical beam plate (423) is fixedly connected to the top surface of the middle right rail (301); the middle part of the second trapezoidal crossbeam plate (421) is fixedly connected to the top surface of the upper middle top wall (2011) through the second bracket (424).

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