Bogie and muck truck

Abstract

The embodiment of the present invention provides a bogie and a muck truck, the bogie includes a support device, a traction assembly connected to the support device and at least two wheel pair assemblies, the support device includes a main support frame and two side support assemblies connected to the upper surface of the main support frame, the traction assembly is connected to the upper surface of the main support frame, and the traction assembly is located between the two side support assemblies, the traction assembly is used to connect to the body of the muck truck, the wheel pair assembly is located between the two side support assemblies, and is connected to the wheel pair assembly and the side support assembly adjacent to it. The bogie provided by the present invention is used to transport muck, and the operation is stable during high-speed heavy-load traction.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of subway machinery, and in particular to a bogie and a muck truck. Background Art

[0002] With the rapid increase of urban population, the traffic congestion in cities is becoming more and more serious, and the development of underground rail transit is imperative. In the construction of subway tunnel projects, in addition to large-scale shield construction machinery, there are also shield auxiliary equipment to assist in construction. These auxiliary equipment include industrial and mining electric locomotives, muck trucks, mortar trucks, segment trucks, flat cars and personnel transport vehicles. As one of the important equipment in the auxiliary equipment, the muck truck is responsible for transporting the waste muck generated during the construction of the subway tunnel out of the tunnel. In order to ensure that the heavy-loaded muck truck can smoothly pass through a tunnel with a larger diameter, a bogie with corresponding strength is required to complete the transportation task.

[0003] Figure 1 is a structural schematic diagram of an existing bogie. Figure 2 This is a top view of the existing bogie. Figure 1 and Figure 2 As shown, the bogie 1 includes a side beam 101, a center beam 102 and a wheel assembly 103. The center beam 102 and the side beam 101 are welded together. The side beams 101 are respectively on both sides of the center beam 102. The wheel assembly 103 is installed under the center beam and the side beam. The bogie adopts an integral structure to complete the transportation task.

[0004] However, the existing bogies are not conducive to heavy-load traction at higher speeds, and the shaking becomes greater when the vehicle travels faster. Summary of the invention

[0005] The embodiments of the present invention provide a bogie and a muck truck to overcome the problem that the existing bogie shakes more when pulling heavy loads at higher speeds.

[0006] On the one hand, an embodiment of the present invention provides a bogie, which is applied to a muck truck, comprising: a support device, a traction assembly connected to the support device, and at least two wheel set assemblies;

[0007] The support device comprises a main support frame and two side support assemblies connected to the upper surface of the main support frame, the traction assembly is connected to the upper surface of the main support frame, and the traction assembly is located between the two side support assemblies;

[0008] The traction assembly is used to be connected to the body of the muck truck, and the wheelset assembly is located between the two side support assemblies and is connected to the wheelset assembly and the adjacent side support assembly.

[0009] Optionally, the side support assembly includes a frame and a connecting frame passing through the frame, the connecting frame includes a first connecting part, a second connecting part and a third connecting part connected in sequence, the second connecting part is located in the frame, the second connecting part is relatively fixed to the frame, and the first connecting part and the third connecting part are respectively connected to the wheelset assembly.

[0010] Optionally, the wheelset assembly includes a main shaft, a wheel connected to the main shaft, and a box connected to both ends of the main shaft, and the box is connected to the first connecting part or the third connecting part.

[0011] Optionally, a buffer component is further included, wherein the buffer component is located inside the frame, and the buffer component is located between the inner top wall of the frame and the upper surface of the second connecting portion.

[0012] Optionally, a positioning piece is provided on the upper surface of the second connecting portion, and the buffering piece is located in an area surrounded by the positioning piece.

[0013] Optionally, the side support assembly further includes a first support member, the support member is located in the frame, and the lower surface of the second connecting portion is connected to the first support member.

[0014] Optionally, the side support assembly further comprises at least one second support member, wherein the second support member is abutted between an inner side wall of the frame and an outer side wall of the second connecting portion.

[0015] Optionally, a braking device for braking the wheel is further included, wherein the braking device is connected to the supporting device, and a braking portion of the braking device is opposite to the wheel.

[0016] Optionally, the traction assembly includes a lower core plate and an upper core plate connected to the lower core plate, the lower core plate is connected to the upper surface of the main support frame, and the upper core plate is used to be connected to the body of the muck truck.

[0017] On the other hand, an embodiment of the present invention provides a muck truck, including a tractor head and a bogie, wherein the tractor head is connected to the bogie, and the bogies are connected in sequence, and each bogie is connected to a vehicle body.

[0018] The embodiment of the present invention provides a bogie and a muck truck, the bogie includes a support device, a traction assembly connected to the support device and at least two wheel pair assemblies, the support device includes a main support frame and two side support assemblies connected to the upper surface of the main support frame, the traction assembly is connected to the upper surface of the main support frame, and the traction assembly is located between the two side support assemblies, the traction assembly is used to connect to the body of the muck truck, the wheel pair assembly is located between the two side support assemblies, and is connected to the wheel pair assembly and its adjacent side support assembly. The bogie provided by the embodiment of the present invention can run smoothly during high-speed heavy-load traction. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0020] Figure 1 It is a structural schematic diagram of an existing bogie;

[0021] Figure 2 is a top view of an existing bogie;

[0022] Figure 3 A schematic structural diagram of a bogie provided by an embodiment of the present invention;

[0023] Figure 4 for Figure 3 Middle AA section;

[0024] Figure 5 for Figure 3 Middle BB section;

[0025] Figure 6 for Figure 5 A partial enlarged view of point C in the middle;

[0026] Figure 7 A schematic structural diagram of a muck truck provided in an embodiment of the present invention.

[0027] Description of reference numerals:

[0028] 1-Bogie;

[0029] 2-body;

[0030] 101-side beam;

[0031] 102-middle sorghum;

[0032] 103-wheel set assembly;

[0033] 1031-spindle;

[0034] 1032-wheel;

[0035] 1033- box;

[0036] 10- supporting device;

[0037] 11-main support frame;

[0038] 12-side support assembly;

[0039] 121-frame;

[0040] 122-connecting frame;

[0041] 123-first support member;

[0042] 124- second support member;

[0043] 1221-first connection portion;

[0044] 1222- second connection portion;

[0045] 1223-third connecting part;

[0046] 20-traction assembly;

[0047] 21-lower core plate;

[0048] 22-upper core plate;

[0049] 30- buffer;

[0050] 40- positioning member;

[0051] 50- brake device;

[0052] 51- brake part;

[0053] 52-brake disc;

[0054] 53-Brake band. DETAILED DESCRIPTION

[0055] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0056] In the description of the present invention, it is necessary to understand that the orientation or positional relationship indicated by the terms "inner top wall", "upper surface", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of the present invention and simplified description, rather than indicating or implying that the device or element referred to must have a specific orientation, a specific access structure and operation, and therefore cannot be understood as a limitation on the invention.

[0057] In the present invention, unless otherwise clearly specified and limited, the term "connection" and other terms should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0058] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features.

[0059] In order to ensure the normal operation of the subway project, the waste soil generated during the subway tunnel construction needs to be transported out of the tunnel in time. In the construction of subway tunnel projects, in addition to large-scale shield construction machinery, there are also shield auxiliary equipment to assist in the construction. These auxiliary equipment include industrial and mining electric locomotives, muck trucks, mortar trucks, segment trucks, flat cars and personnel transport vehicles. As one of the important equipment in the auxiliary equipment, the muck truck is responsible for transporting the waste soil generated during the subway tunnel construction out of the tunnel. In order to ensure that the heavy-loaded muck truck can smoothly pass through a tunnel with a larger diameter, a bogie with corresponding strength is required to complete the transportation task. Figure 1 is a structural schematic diagram of an existing bogie. Figure 2 This is a top view of the existing bogie. Figure 1 and Figure 2 As shown, the bogie 1 includes a side beam 101, a center beam 102 and a wheelset assembly 103. The center beam 102 and the side beam 101 are welded together. The side beams 101 are respectively on both sides of the center beam 102. The wheelset assembly 103 is installed under the center beam and the side beam. The bogie adopts an integral structure to complete the transportation task. However, the existing bogie is not conducive to high-speed heavy-load traction. The faster the vehicle travels, the greater the shaking.

[0060] In order to solve the above problems, an embodiment of the present invention provides a bogie and a muck truck, the bogie includes a support device, a traction assembly connected to the support device and at least two wheel pair assemblies, the support device includes a main support frame and two side support assemblies connected to the upper surface of the main support frame, the traction assembly is connected to the upper surface of the main support frame, and the traction assembly is located between the two side support assemblies, the traction assembly is used to connect to the body of the muck truck, the wheel pair assembly is located between the two side support assemblies, and is connected to the wheel pair assembly and its adjacent side support assembly. The bogie provided by the present invention can run smoothly during high-speed heavy-load traction.

[0061] The bogie provided by the present invention is described in detail below with reference to specific embodiments.

[0062] Figure 3 A schematic structural diagram of a bogie provided by an embodiment of the present invention; Figure 4 for Figure 3 Middle AA section; Figure 5 for Figure 3 Middle BB section; Figure 6 for Figure 5 A partial enlarged view of point C in the middle.

[0063] As shown in the figure, a bogie 1 provided in an embodiment of the present invention is applied to a muck truck, comprising a support device 10, a traction assembly 20 connected to the support device 10 and at least two wheel pair assemblies 103; the support device 10 comprises a main support frame 11 and two side support assemblies 12 connected to the upper surface of the main support frame 11, the traction assembly 20 is connected to the upper surface of the main support frame 11, and the traction assembly 20 is located between the two side support assemblies 12; the traction assembly 20 is used to be connected to the body 2 of the muck truck, the wheel pair assembly 103 is located between the two side support assemblies 12, and is connected to the wheel pair assembly 103 and the side support assembly 12 adjacent to it.

[0064] Specifically, the support device 10 includes a main support frame 11 and two side support assemblies 12 connected to the upper surface of the main support frame 11, a traction assembly 20 connected to the upper surface of the main support frame 11, and the traction assembly 20 is located between the two side support assemblies 12, the traction assembly 20 is used to connect with the body 2 of the muck truck, and the wheel pair assembly 103 is located between the two side support assemblies 12, and is connected to the wheel pair assembly 103 and the side support assembly 12 adjacent to it. Since the main support frame 11 and the side support assembly 12 adopt a separate structure, the center of gravity of the muck truck body 2 is lowered. Therefore, when the bogie 1 provided in the embodiment of the present invention transports muck at a relatively high speed, the main support frame 11 and the side support assembly 12 adopt a separate structure to lower the center of gravity of the muck truck body 2, so that the muck truck runs smoothly.

[0065] Optionally, the side support assembly 12 includes a frame 121 and a connecting frame 122 passed through the frame 121, the connecting frame 122 includes a first connecting portion 1221, a second connecting portion 1222 and a third connecting portion 1223 connected in sequence, the second connecting portion 1222 is located in the frame 121, the second connecting portion 1222 is relatively fixed to the frame 121, and the first connecting portion 1221 and the third connecting portion 1223 are respectively connected to the wheelset assembly 103.

[0066] It should be noted that the frame 121 is connected to the main support frame 11 by welding, bonding, etc. (welding is taken as an example in the figure), and the frame 121 is located on the upper surface of the main support frame 11.

[0067] Specifically, the frame 121 is a frame formed by welding multiple metal blocks together, or it can be a frame cast as one piece from a metal material; the connecting frame 122 is a connecting frame formed by welding multiple metal blocks together, or it can be a connecting frame cast as one piece from a metal material, and this embodiment of the present invention does not impose any limitation on this.

[0068] It should be noted that the second connection part 1222 is provided on the frame 121, and the side of the second connection part 1222 is relatively fixed to the frame 121, and the first connection part 1221 and the third connection part 1223 are respectively connected to the wheelset assembly 103. The frame 121, the first connection part 1221, the second connection part 1222 and the third connection part 1223 can be made of materials such as Q235 steel.

[0069] Optionally, the wheelset assembly 103 includes a main shaft 1031 , a wheel 1032 connected to the main shaft 1031 , and a box 1033 connected to both ends of the main shaft 1031 , and the box 1033 is connected to the first connecting portion 1221 or the third connecting portion 1223 .

[0070] Specifically, the wheelset assembly 103 is divided into two groups, which are respectively installed on both sides of the side support assembly 12. The wheels 1032 are installed on the main shaft 1031, and the wheels 1032 are located on both sides of the main shaft 1031. The box 1033 is installed on the main shaft 1031 and is located outside the wheels 1032. In order to fix the support device 10 on the wheelset assembly 103, the first connecting portion 1221 needs to be connected to the box 1033 of one wheelset assembly 103, and the third connecting portion 1223 needs to be connected to the box 1033 of another wheelset assembly 103.

[0071] Optionally, a buffer member 30 is further included. The buffer member 30 is located in the frame 121 . The buffer member 30 is located between the inner top wall of the frame 121 and the upper surface of the second connecting portion 1222 .

[0072] Specifically, the buffer 30 can be made of rubber or spring (rubber is used as an example in the figure).

[0073] It should be noted that the buffer 30 is located between the inner top wall of the frame 121 and the upper surface of the second connection part 1222. When the muck truck is loaded with muck, the muck and the body 2 of the muck truck act downward on the main support frame 11 through the traction assembly 20. Due to the connection between the frame 121 and the main support frame 11, the frame 121 exerts a force downward on the buffer 30; the first connection part 1221 and the third connection part 1223 of the connecting frame 122 are respectively connected to the wheelset assembly 103, and the main shaft 1031 of the wheelset assembly 103 exerts an upward force on the first connection part 1221 and the third connection part 1223. The first connection part 1221 and the third connection part 1223 are connected to the second connection part 1222, and the buffer 30 is located on the upper surface of the second connection part 1222, so that the force of the second connection part 1222 on the buffer 30 is upward. Since the frame 121 exerts a downward force on the buffer member 30 and the second connecting portion 1222 exerts an upward force on the buffer member 30, the two forces are in opposite directions, thereby reducing the impact load of the slag on the muck truck and the body 2 of the muck truck on the supporting device 10. At the same time, the main support frame 11 and the side support assembly 12 adopt a separate structure, so that the muck truck runs smoothly when transporting slag at a relatively high speed.

[0074] Optionally, a positioning member 40 is provided on an upper surface of the second connecting portion 1222 , and the buffer member 30 is located in an area surrounded by the positioning member 40 .

[0075] It should be noted that, in order to prevent the buffer member 30 from moving on the upper surface of the second connection portion 1222, a positioning member 40 is provided on the upper surface of the second connection portion 1222, and the buffer member 30 is located in the area surrounded by the positioning member 40. The positioning member 40 can be made of materials such as Q235 steel.

[0076] Optionally, the side support assembly 12 further includes a first support member 123 , the first support member 123 is located in the frame 121 , and a lower surface of the second connection portion 1222 is connected to the first support member 123 .

[0077] Specifically, in order to prevent the center of gravity of the supporting device 10 from being too low, the side supporting assembly 12 further includes a first supporting member 123 . The first supporting member 123 is located in the frame 121 , and the lower surface of the second connecting portion 1222 is connected to the first supporting member 123 .

[0078] It should be noted that the first support member 123 may be a hollow circular steel or a square steel (the figure takes the hollow circular steel as an example).

[0079] Optionally, the side support assembly 12 further includes at least one second support member 124 , and the second support member 124 is connected between the inner side wall of the frame 121 and the outer side wall of the second connection portion 1222 .

[0080] Specifically, in order to prevent the second connection portion 1222 from shaking violently in the frame 121 , the side support assembly 12 further includes at least one second support member 124 .

[0081] The second support member 124 is provided in the frame 121 and may be implemented in the following ways:

[0082] A possible implementation manner: the second support member 124 is welded to the outer side wall of the second connecting portion 1222 .

[0083] Another possible implementation manner: the second support member 124 is directly placed between the inner wall of the frame 121 and the outer wall of the second connecting portion 1222 .

[0084] Optionally, a braking device 50 for braking the wheel 1032 is further included. The braking device 50 is connected to the supporting device 10 , and a braking portion 51 of the braking device 50 is opposite to the wheel 1032 .

[0085] Specifically, the brake device 50 includes a brake part 51, a brake disc 52, and a brake band 53. The brake disc 52 is arranged on the wheel hub of the wheel 1032, and the brake band 53 is respectively connected to the brake disc 52, the piston rod of the brake part 51, and the side support assembly 12. When the brake part 51 receives a control signal sent by the hydraulic control device, the piston rod of the brake part 51 pulls the brake band 53 away from the brake disc 52, so that the brake band 53 tightens the brake disc 52 and the wheel 1032 to achieve braking.

[0086] Optionally, the traction assembly 20 includes a lower core disc 21 and an upper core disc 22 connected to the lower core disc 21 , the lower core disc 21 is connected to the upper surface of the main support frame 11 , and the upper core disc 22 is used to be connected to the body 2 of the muck truck.

[0087] It should be noted that the lower core plate 21 is connected to the upper surface of the main support frame 11 by welding, bonding, etc.; the upper core plate 22 is connected to the body 2 of the muck truck by welding, bonding, etc.; the upper core plate 22 and the lower core plate 21 are fixed by bolts and nuts. The body 2 of the muck truck is connected to the main support frame 11 through the upper core plate 22 and the lower core plate 21, and the side support assembly 12 is connected to the upper surface of the main support frame 11. Figure 1 and Figure 2As shown, the bogie 1 includes a side beam 101 and a center beam 102, and the side beam 101 and the center beam 102 are an integral structure. The center of gravity of the side beam 101 and the center beam 102 are located on the same horizontal plane. The embodiment of the present invention adopts a main support frame 11 and two side support assemblies 12 connected to the upper surface of the main support frame 11. The main support frame 11 and the side support assemblies 12 are separate structures. The side support assemblies 12 are located on the upper surface of the main support frame 11. The body of the muck truck is connected to the main support frame 11 through an upper core plate 22 and a lower core plate 21, so that the center of gravity of the body 2 of the muck truck in the embodiment of the present invention is lowered.

[0088] Specifically, the lower core plate 21 is connected to the upper surface of the main support frame 11 by welding, the upper core plate 22 is connected to the body of the muck truck by welding, and the upper core plate 22 is fixed to the lower core plate 21 by bolts and nuts. The gravity of the body 2 of the muck truck acts on the main support frame 11 through the upper core plate 22, so that the main support frame 11 is subjected to a downward force, and the main support frame 11 is connected to the frame 121, so that the force of the frame 121 on the buffer 30 is downward; the first connecting part 1221 and the third connecting part 1223 of the connecting frame 122 are respectively connected to the wheelset assembly 103, and the main shaft 1031 of the wheelset assembly 103 exerts an upward force on the first connecting part 1221 and the third connecting part 1223, and the first connecting part 1221 and the third connecting part 1223 are connected to the second connecting part 1222, and the buffer 30 is located on the upper surface of the second connecting part 1222, so that the force of the second connecting part 1222 on the buffer 30 is upward. Since the frame 121 exerts a downward force on the buffer member 30 and the second connecting portion 1222 exerts an upward force on the buffer member 30, the two forces are in opposite directions, thereby reducing the impact load of the slag and the vehicle body 2 on the supporting device 10, so that the slag truck runs smoothly when transporting slag at a relatively high speed.

[0089] The embodiment of the present invention provides a bogie 1, which includes a support device 10, a traction assembly 20 connected to the support device 10, and at least two wheel pair assemblies 103. The support device 10 includes a main support frame 11 and two side support assemblies 12 connected to the upper surface of the main support frame 11. The traction assembly 20 is connected to the upper surface of the main support frame 11, and the traction assembly 20 is located between the two side support assemblies 12. The traction assembly 20 is used to connect with the body 2 of the muck truck. The wheel pair assembly 103 is located between the two side support assemblies 12 and is connected to the wheel pair assembly 103 and the side support assembly 12 adjacent to it. Since the main support frame 11 and the side support assembly 12 adopt a separate structure, the center of gravity of the muck truck body 2 is reduced. Therefore, when the bogie 1 provided by the embodiment of the present invention transports muck at a relatively high speed, the center of gravity of the muck truck body 2 is reduced by adopting a separate structure between the main support frame 11 and the side support assembly 12, so that the muck truck runs smoothly when transporting muck at a relatively high speed.

[0090] like Figure 7 As shown, an embodiment of the present invention further provides a muck truck, comprising a tractor head and a bogie 1, wherein the tractor head is connected to the bogie 1, and each bogie 1 is connected in sequence, and each bogie 1 is connected to a vehicle body 2.

[0091] Specifically, the car body 2 is arranged on the two bogies 1, and the car body 2 is connected to the bogie 1 through the upper core plate 22 and the lower core plate 21; the traction head is connected to the car body 2, and the traction head is used to provide traction to the bogie 1 and the car body 2 (not marked in the figure).

[0092] A muck truck provided in an embodiment of the present invention comprises a tractor head, a bogie 1 and a vehicle body 2. The bogie 1 comprises a supporting device 10, a traction assembly 20 connected to the supporting device 10, at least two wheel set assemblies 103 and a buffer 30; the supporting device 10 comprises a main supporting frame 11 and two side supporting assemblies 12 connected to the upper surface of the main supporting frame 11; the side supporting assembly 12 comprises a frame 121, a connecting frame 122 penetrating the frame 121 and a first supporting member 123, the connecting frame 122 comprises a first connecting portion 1221, a second connecting portion 1222 and a third connecting portion 1223 connected in sequence, the second connecting portion 1222 is located in the frame 121, the second connecting portion 1222 is relatively fixed to the frame 121, the first connecting portion 1221 and the third connecting portion 1223 are respectively connected to the wheel set assembly 103; the traction assembly 20 comprises a lower core disc 21 and an upper core disc 22 connected to the lower core disc 21; the buffer 30 is located between the inner top wall of the frame 121 and the upper surface of the second connecting portion 1222. The slag on the slag truck and the slag truck body 2 act on the supporting device 10 through the upper core plate 22 and the lower core plate 21, that is, the frame 121 acts on the buffer 30 downward; the first connection part 1221 and the third connection part 1223 of the connecting frame 122 are respectively connected to the wheelset assembly 103, and the main shaft 1031 of the wheelset assembly 103 acts on the first connection part 1221 and the third connection part 1223 upward, the first connection part 1221 and the third connection part 1223 are connected to the second connection part 1222, and the buffer 30 is located on the upper surface of the second connection part 1222, so that the second connection part 1222 acts on the buffer 30 upward. Since the frame 121 exerts a downward force on the buffer member 30 and the second connecting portion 1222 exerts an upward force on the buffer member 30, the two forces are in opposite directions, thereby reducing the impact load of the slag on the muck truck and the body 2 of the muck truck on the supporting device 10. At the same time, the main support frame 11 and the side support assembly 12 adopt a separate structure, so that the muck truck runs smoothly when transporting slag at a relatively high speed.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bogie, applied to a muck truck, characterized in that: It comprises a supporting device, a traction assembly connected to the supporting device and at least two wheel set assemblies; The support device comprises a main support frame and two side support assemblies connected to the upper surface of the main support frame, the traction assembly is connected to the upper surface of the main support frame, and the traction assembly is located between the two side support assemblies; The traction assembly is used to be connected to the body of the muck truck, the wheelset assembly is located between the two side support assemblies, and the wheelset assembly is connected to the adjacent side support assemblies; The side support assembly includes a frame and a connecting frame passing through the frame, the connecting frame includes a first connecting portion, a second connecting portion and a third connecting portion connected in sequence, the second connecting portion is located in the frame, the second connecting portion is relatively fixed to the frame, and the first connecting portion and the third connecting portion are respectively connected to the wheelset assembly; A buffer is also included. The buffer is located in the frame and between the inner top wall of the frame and the upper surface of the second connecting portion.

2. The bogie according to claim 1, characterized in that: The wheelset assembly comprises a main shaft, a wheel connected to the main shaft and a box connected to two ends of the main shaft, and the box is connected to the first connecting part or the third connecting part.

3. The bogie according to claim 1, characterized in that: The upper surface of the second connecting portion has a positioning piece, and the buffer piece is located in the area surrounded by the positioning piece.

4. The bogie according to claim 1, characterized in that: The side support assembly further includes a first support member, the first support member is located in the frame, and the lower surface of the second connecting portion is connected to the first support member.

5. The bogie according to claim 1, characterized in that: The side support assembly further includes at least one second support member connected between an inner side wall of the frame and an outer side wall of the second connection portion.

6. The bogie according to claim 2, characterized in that: It also includes a braking device for braking the wheel, the braking device is connected to the supporting device, and the braking part of the braking device is opposite to the wheel.

7. The bogie according to claim 1, characterized in that: The traction assembly includes a lower core plate and an upper core plate connected to the lower core plate, the lower core plate is connected to the upper surface of the main support frame, and the upper core plate is used to be connected to the body of the muck truck.

8. A muck truck, characterized in that: The invention comprises a tractor head and a car body, wherein the car body comprises at least one bogie according to any one of claims 1 to 7, and the tractor head is connected to the car body.

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