Mixing truck and frame assembly thereof
By designing a reasonable chassis assembly, including the front frame, rear frame, longitudinal beams, and side frames, the problem of eccentric instability of the underground concrete mixer truck under the large inclination angle of the tunnel floor and the heavy load was solved, thereby improving the stability and safety of the vehicle.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHINA COAL SCIENCE & TECHNOLOGY (TAIYUAN) TIMES POWER CO LTD
- Filing Date
- 2025-06-27
- Publication Date
- 2026-07-03
AI Technical Summary
Existing underground concrete mixer trucks are at risk of eccentric instability and rollover when the roadway floor has a large inclination angle and a large load.
Design a chassis assembly including a front frame, a rear frame, longitudinal beams, and side frames. The structure is rationally arranged so that the center of gravity is located in the lower middle position. The design of the longitudinal beams and side frames improves the balance and symmetry of the structure and avoids eccentric instability.
It effectively avoids vehicle eccentricity and instability, improving vehicle stability and safety, especially in situations where the tunnel floor has a large inclination angle and a large load.
Smart Images

Figure CN224447612U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of vehicle technology, specifically to a chassis assembly of a mixer truck and a mixer truck. Background Technology
[0002] A concrete mixer truck is a specialized concrete transport equipment. During the construction and production of mines, there are numerous construction projects such as tunnel support and reinforcement, waterproofing and leak prevention. These projects require a large amount of building materials such as concrete, and the availability of underground concrete mixer trucks facilitates the implementation of these projects.
[0003] However, existing underground concrete mixer trucks suffer from eccentric instability during use, especially when the inclination angle of the tunnel floor is large and the load is heavy, there is also a risk of the mixer truck overturning. Utility Model Content
[0004] This utility model aims to at least partially solve one of the technical problems in the related art.
[0005] Therefore, this utility model embodiment proposes a frame assembly with a reasonable overall structural layout. After the vehicle is assembled, the center of gravity can be located in the lower middle part of the frame assembly, thus avoiding vehicle instability due to eccentricity.
[0006] This utility model embodiment also proposes a mixer truck including the above-described frame assembly.
[0007] The vehicle frame assembly of this utility model embodiment includes:
[0008] Front frame and rear frame;
[0009] Two longitudinal beams are arranged opposite each other in the width direction of the frame assembly and both extend along the length direction of the frame assembly. The front end of each longitudinal beam is connected to the front frame, and the rear end of each longitudinal beam is connected to the rear frame. A gap space is formed between the two longitudinal beams for embedding the mixing tank.
[0010] Two borders, both of which extend along the length direction, and in the width direction, one border is located outside one of the longitudinal beams and the other border is located outside the other of the longitudinal beams.
[0011] In some embodiments, in the width direction, the outer wall surface of each of the frame edges does not extend beyond the outer wall surface of the corresponding side of the front or rear frame.
[0012] In some embodiments, in the width direction, the distance between the outer walls of the two frame sides is L1, the width dimension of the front frame is L2, the width dimension of the rear frame is L3, and the distance L1 is less than either the width dimension L2 or the width dimension L3.
[0013] In some embodiments, the spacing between the two longitudinal beams in the width direction has an increasing trend from front to back.
[0014] In some embodiments, each of the longitudinal beams has two raised portions, which are spaced apart along the length direction. Each raised portion protrudes upward and defines a clearance groove for avoiding wheels below the longitudinal beam.
[0015] In some embodiments, each of the raised portions is provided with a protective plate on its outer side in the width direction, the protective plate being used to cover the outer periphery of the wheel.
[0016] In some embodiments, the front frame is provided with a plurality of first mounting points, the plurality of first mounting points are evenly distributed on the top side of the front frame, and the plurality of first mounting points are used for mounting the cab;
[0017] And / or, the rear frame is provided with a plurality of second mounting points, the plurality of second mounting points being evenly distributed on the rear frame, and at least some of the second mounting points being used for mounting the engine and radiator.
[0018] In some embodiments, the rear frame includes two uprights arranged at a distance in the width direction, each upright having a groove with the opening of the groove facing the front side of the frame assembly.
[0019] In some embodiments, the border includes:
[0020] Two long beams, both of which extend along the length direction and are spaced apart in the vertical direction;
[0021] A plurality of first short beams and a plurality of second short beams, wherein each of the first short beams is connected between two of the long beams and is spaced apart along the length direction, and each of the second short beams is connected between the corresponding longitudinal beam and the long beam.
[0022] The concrete mixer truck of this utility model includes a cab, an engine, a radiator, a mixing tank, an oil tank, a hydraulic system, and a frame assembly as described in any of the above embodiments. The cab is mounted on top of the front frame, the engine and the radiator are mounted on top of the rear frame, the oil tank is mounted on one of the frame sides, the hydraulic system is mounted on the other frame side, and the mixing tank is located above the two longitudinal beams.
[0023] Beneficial effects: The concrete mixer truck and its frame assembly of this utility model have a reasonable overall structural layout. After the vehicle is assembled, the center of gravity can be located in the lower middle part of the frame assembly, thus avoiding vehicle instability due to eccentricity. Attached Figure Description
[0024] Figure 1 This is a three-dimensional schematic diagram of the vehicle frame assembly according to an embodiment of the present utility model.
[0025] Figure 2 This is a schematic diagram of the left side of the frame assembly according to an embodiment of the present utility model.
[0026] Figure 3 This is a top view of the frame assembly according to an embodiment of the present utility model.
[0027] Figure 4 This is a three-dimensional schematic diagram of the mixer truck according to an embodiment of the present utility model.
[0028] Figure label:
[0029] 100-Frame Assembly;
[0030] 1-Front frame;
[0031] 2-Rear frame; 21-Upright plate;
[0032] 3-Longitudinal beam; 31-Raised section;
[0033] 4-Frame; 41-Long beam; 42-First short beam; 43-Second short beam;
[0034] 5-Interval space; 6-Guard panel;
[0035] 200 - Cab; 300 - Engine; 400 - Radiator; 500 - Mixing tank; 600 - Fuel tank. Detailed Implementation
[0036] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.
[0037] like Figure 1 As shown, the vehicle frame assembly 100 of this utility model embodiment includes a front frame 1, a rear frame 2, two longitudinal beams 3 and two side frames 4.
[0038] Two longitudinal beams 3 are arranged opposite each other in the width direction of the frame assembly 100 and both extend along the length direction of the frame assembly 100. The front end of each longitudinal beam 3 is connected to the front frame 1, and the rear end of each longitudinal beam 3 is connected to the rear frame 2. A gap space 5 is formed between the two longitudinal beams 3 for the mixing tank 500 to be embedded.
[0039] For example, such as Figure 1 As shown, both longitudinal beams 3 can be made of steel or similar materials, and can be manufactured by casting or other methods. The width of the frame assembly 100 can be left-right, and the length of the frame assembly 100 can be front-rear. Both longitudinal beams 3 can generally extend along the front-rear direction, and can be spaced apart in the left-right direction. The front end of each longitudinal beam 3 can be welded to the front frame 1 or integrally formed, and the rear end of each longitudinal beam 3 can be welded to the rear frame 2 or integrally formed.
[0040] like Figure 1 As shown, the space between the two longitudinal beams 3 forms a gap space 5. When installing the mixing tank 500, the mixing tank 500 can be installed above the two longitudinal beams 3, and a part of the mixing tank 500 can be inserted into the gap space 5, which can lower the center of gravity of the mixing tank 500.
[0041] Both frame 4 extend along the length direction, and in the width direction, one frame 4 is located outside one longitudinal beam 3, and the other frame 4 is located outside another longitudinal beam 3.
[0042] For example, such as Figure 1 and Figure 2 As shown, the frame 4 can be a rectangular frame. The frame 4 can be installed on the outside of each longitudinal beam 3 by welding, fastener fixing or other methods. Specifically, one frame 4 can be fixed on the left side of the left longitudinal beam 3, and the other frame 4 can be fixed on the right side of the right longitudinal beam 3.
[0043] In use, devices such as the fuel tank 600 and hydraulic system can be installed inside the frame 4. This improves the balance and symmetry of the structural distribution of the frame assembly 100 on both sides, allowing the center of gravity of the frame assembly 100 to be closer to the center of the frame assembly 100. On the other hand, the frame 4 can protect the fuel tank 600 and other components, preventing them from directly contacting foreign objects during driving.
[0044] The vehicle frame assembly 100 of this utility model has a front frame 1, two side frames 4, and a rear frame 2 distributed circumferentially along two longitudinal beams 3. The overall structure is reasonably arranged and evenly distributed. Since the space 5 between the two longitudinal beams 3 restricts the space, a part of the mixing tank 500 can be embedded in the space 5. That is, after the vehicle is assembled, the center of gravity can be located in the lower middle part of the vehicle frame assembly 100, avoiding the situation of vehicle eccentricity and instability.
[0045] In some embodiments, in the width direction, the outer wall surface of each frame 4 does not extend beyond the outer wall surface of the corresponding side of the front frame 1 or the rear frame 2. For example, as Figure 1 As shown, taking the right-side frame 4 as an example, the outer wall of the frame 4 is its right-side surface. Along the left-right direction, the right-side surface of the frame 4 can be located to the left of the right-side surface of the front frame 1, and also to the left of the right-side surface of the rear frame 2. It should be noted that the left-side frame 4 does not extend beyond the left-side surfaces of the front frame 1 and the rear frame 2 in the left-right direction, and its overall structure can be roughly symmetrical to the right-side frame 4; this will not be elaborated further here.
[0046] This ensures that the frame 4 does not extend beyond the front frame 1 and the rear frame 2, further preventing the frame 4 from being easily touched during driving and improving overall protection.
[0047] In some embodiments, such as Figure 3 As shown, in the width direction, the distance between the outer walls of the two frame 4 is L1, the width dimension of the front frame 1 is L2, and the width dimension of the rear frame 2 is L3. The distance L1 is less than either the width dimension L2 or the width dimension L3. Specifically, the distance L1 is less than the width dimension L2, and the distance L1 is also less than the width dimension L3.
[0048] This allows the two side frames 4 to be completely hidden in the groove-shaped space between the front frame 1 and the rear frame 2, which serves a protective function and also helps to ensure the balanced distribution of the overall structure, making the overall center of gravity tend to be in the central position.
[0049] In some embodiments, the spacing between the two longitudinal beams 3 in the width direction increases from front to back. For example, as Figure 3 As shown, the distance between the two longitudinal beams 3 can be dimension L4, and dimension L4 can increase in a stepped manner from front to back. Thus, on the one hand, the two longitudinal beams 3 and the rear frame 2 can form a triangular structure, thereby improving the structural stability of the entire frame assembly 100. On the other hand, this gradual design also helps to increase the local width of the aforementioned interval space 5, thereby facilitating the lowering of the wider rear end of the mixing tank 500, and thus facilitating the lowering of the overall center of gravity.
[0050] In some embodiments, each longitudinal beam 3 is provided with two protrusions 31, which are arranged at intervals along the length direction. Each protrusion 31 protrudes upward and defines a clearance groove for avoiding wheels below the longitudinal beam 3.
[0051] For example, such as Figure 1 and Figure 2 As shown, the raised portion 31 can be formed by the partial bending of the longitudinal beam 3. Two raised portions 31 can be constructed on each longitudinal beam 3 by means of the bending direction. The two raised portions 31 can be arranged at intervals in the front-rear direction. Each raised portion 31 can be raised upward and form a clearance groove below. During assembly, the four wheels of the vehicle can be respectively installed in the corresponding clearance grooves, which facilitates the installation and arrangement of the wheels, and also improves the local structural strength of the longitudinal beam 3 through this partial bending.
[0052] In some embodiments, each raised portion 31 is provided with a protective plate 6 on its outer side in the width direction, the protective plate 6 being used to cover the outer periphery of the wheel. For example, as Figure 1 As shown, the guard plate 6 can be a wheel cover, etc. Each guard plate 6 can be an arc-shaped or V-shaped structure, and each guard plate 6 can be fixed to the outside of the corresponding raised part 31 by fasteners, etc. Taking the left longitudinal beam 3 as an example, a guard plate 6 can be installed on the right side of the raised part 31 of the longitudinal beam 3. In this way, it can achieve the effect of shielding and protecting the wheel.
[0053] In some embodiments, the front frame 1 is provided with a plurality of first mounting points, which are evenly distributed on the top side of the front frame 1, and the plurality of first mounting points are used to assemble the cab 200.
[0054] For example, the first mounting point can be a mounting hole, a threaded post, or other structure. Multiple first mounting points can be evenly distributed on the front frame 1. When the cab 200 is stacked on the front frame 1, the cab 200 can be installed and fixed through multiple first mounting points, thereby improving the convenience of installing the cab 200.
[0055] In some embodiments, the rear frame 2 is provided with a plurality of second mounting points, which are evenly distributed on the rear frame 2, and at least some of the second mounting points are used for mounting the engine 300 and the radiator 400.
[0056] For example, the second mounting point can also be a mounting hole, a threaded post, or other structure. Multiple second mounting points can be evenly distributed on the rear frame 2. The engine 300 can be a diesel engine. When the engine 300 and radiator 400 are stacked on the rear frame 2, the engine 300 and radiator 400 can be installed and fixed through multiple second mounting points, which improves the convenience of installation.
[0057] It should be noted that the layout and style of the first and second installation points can be determined through topology optimization. This allows the cab 200, engine 300, and other components to be installed in their respective positions according to the pre-design, while also ensuring the overall structural balance.
[0058] In some embodiments, the rear frame 2 includes two uprights 21, which are spaced apart in the width direction. Each upright 21 is provided with a groove, the opening of which faces the front side of the frame assembly 100.
[0059] For example, such as Figure 1 As shown, both upright plates 21 can be channel steel structures. One upright plate 21 can be fixed to the left corner of the rear frame 2 with screws or other fasteners, and the other upright plate 21 can also be fixed to the right corner of the rear frame 2 with fasteners. Some frames, controllers, etc. can be installed in the grooves of the upright plates 21, thereby providing protection through the upright plates 21.
[0060] In some embodiments, such as Figure 1 As shown, the frame 4 includes two long beams 41, multiple first short beams 42, and multiple second short beams 43. The two long beams 41 extend along their length and are spaced apart vertically. The multiple first short beams 42 connect the two long beams 41 and are also spaced apart along their length. Each second short beam 43 connects to its corresponding longitudinal beam 3 and a long beam 41. This design effectively ensures the structural strength of the frame 4 while also meeting the needs for internal storage.
[0061] The following describes a concrete mixer truck according to an embodiment of the present invention.
[0062] like Figure 4 As shown, the concrete mixer truck of this utility model embodiment includes a cab 200, an engine 300, a radiator 400, a mixing tank 500, an oil tank 600, a hydraulic system, and a frame assembly 100 as described in any of the above embodiments.
[0063] The cab 200 is mounted above the front frame 1, specifically on the left side of the front frame 1. The engine 300 and radiator 400 are mounted above the rear frame 2, with the radiator 400 located behind the engine 300. The fuel tank 600 is mounted within the left side frame 4, and the hydraulic system is mounted within the right side frame 4. The mixing tank 500 is located above the two longitudinal beams 3. The front of the mixing tank 500 can be located on the right side of the front frame 1. The mixing tank 500 can be arranged diagonally and positioned above the two longitudinal beams 3. The engine 300 is located between the mixing tank 500 and the radiator 400. In use, the engine 300 provides power to rotate the mixing tank 500, facilitating the mixing of materials such as concrete within the mixing tank 500.
[0064] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0065] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0066] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0067] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.
[0068] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.
[0069] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.
Claims
1. A frame assembly characterized by, include: Front frame and rear frame; Two longitudinal beams are arranged opposite each other in the width direction of the frame assembly and both extend along the length direction of the frame assembly. The front end of each longitudinal beam is connected to the front frame, and the rear end of each longitudinal beam is connected to the rear frame. A gap space is formed between the two longitudinal beams for embedding the mixing tank. Two borders, both of which extend along the length direction, and in the width direction, one border is located outside one of the longitudinal beams and the other border is located outside the other of the longitudinal beams.
2. The frame assembly of claim 1, wherein, In the width direction, the outer wall of each of the frame frames does not extend beyond the outer wall of the corresponding side of the front or rear frame.
3. The frame assembly of claim 2, wherein, In the width direction, the distance between the outer walls of the two frame frames is L1, the width dimension of the front frame is L2, the width dimension of the rear frame is L3, and the distance L1 is less than either the width dimension L2 or the width dimension L3.
4. The frame assembly of claim 1, wherein, The spacing between the two longitudinal beams in the width direction increases from front to back.
5. The frame assembly of claim 1, wherein, Each of the longitudinal beams has two raised portions, which are spaced apart along the length direction. Each raised portion protrudes upward and defines a clearance groove for avoiding wheels below the longitudinal beam.
6. The frame assembly of claim 5, wherein, In the width direction, each of the raised portions is provided with a protective plate on its outer side, the protective plate being used to cover the outer periphery of the wheel.
7. The frame assembly of claim 1, wherein, The front frame is provided with a plurality of first mounting points, which are evenly distributed on the top side of the front frame, and the plurality of first mounting points are used for mounting the cab. And / or, the rear frame is provided with a plurality of second mounting points, the plurality of second mounting points being evenly distributed on the rear frame, and at least some of the second mounting points being used for mounting the engine and radiator.
8. The frame assembly of claim 1, wherein, The rear frame includes two uprights, which are spaced apart in the width direction. Each upright has a groove with the opening of the groove facing the front of the frame assembly.
9. The frame assembly of any one of claims 1-8, wherein, The border includes: Two long beams, both of which extend along the length direction and are spaced apart in the vertical direction; A plurality of first short beams and a plurality of second short beams, wherein each of the first short beams is connected between two of the long beams and is spaced apart along the length direction, and each of the second short beams is connected between the corresponding longitudinal beam and the long beam.
10. A mixer truck characterized by The vehicle includes a cab, an engine, a radiator, a mixing tank, an oil tank, a hydraulic system, and a frame assembly as described in any one of claims 1-9, wherein the cab is mounted above the front frame, the engine and the radiator are mounted above the rear frame, the oil tank is mounted on one of the frame sides, the hydraulic system is mounted on the other frame side, and the mixing tank is located above the two longitudinal beams.