Transmission shaft protection device and vehicle
By designing a detachable driveshaft protection device and using spaced connectors to connect it to the vehicle frame, the problems of large size and inconvenient disassembly and assembly of the driveshaft protection device are solved, enabling convenient maintenance and assembly.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUZHOU SANY LOADER CO LTD
- Filing Date
- 2025-07-17
- Publication Date
- 2026-06-19
AI Technical Summary
The existing protective devices for the drive shafts of heavy vehicles are large in size, inconvenient to disassemble and assemble, and not conducive to maintenance and repair.
A driveshaft protection device was designed, which utilizes first and second connecting parts arranged at intervals to be detachably connected to the vehicle frame. Protective fasteners are detachably connected to the first and second connecting parts to form a protective space. The connecting parts can be installed in stages to reduce the overall disassembly and assembly workload.
It facilitates the inspection and maintenance of the drive shaft, reduces the labor intensity of assembly personnel, and improves assembly efficiency.
Smart Images

Figure CN224375343U_ABST
Abstract
Description
Technical Field
[0001] This application relates to vehicle component technology, and more particularly to a driveshaft protection device and a vehicle. Background Technology
[0002] In heavy vehicles such as loaders, backhoe loaders, and heavy trucks, the drive shaft is responsible for transmitting the torque and rotational motion generated by the engine and gearbox to the drive axle, thereby driving the wheels to rotate.
[0003] Because heavy vehicles and equipment often operate under complex conditions, the drive shaft can be easily damaged by stones, potholes, and other debris on the road surface during operation or travel. Therefore, drive shaft protection is necessary. Currently, a single-piece sheet metal is generally used to directly cover the drive shaft for protection. However, this single-piece sheet metal component is bulky, inconvenient to disassemble and assemble, and also unfavorable for subsequent maintenance and repair of the drive shaft. Utility Model Content
[0004] This application provides a driveshaft protection device and vehicle to solve the technical problems of large size and inconvenient disassembly and assembly of driveshaft protection components in related technologies.
[0005] On one hand, this application provides a drive shaft protection device, comprising:
[0006] A first connector and a second connector are arranged at intervals, both of which are used for detachable connection to the vehicle frame;
[0007] The protective fastener has one end detachably connected to the first connector and the other end detachably connected to the second connector. The protective fastener is configured to, together with the first connector and the second connector, form a protective space through which the vehicle drive shaft passes.
[0008] In some possible implementations, the first connector and the protective fastener are connected by fasteners that pass through both; and / or, the second connector and the protective fastener are connected by fasteners that pass through both.
[0009] In some possible implementations, the first connector includes a first mounting portion and a first transfer portion that is bent relative to the first mounting portion, wherein the free end of the first transfer portion is configured with a bent first overlapping step.
[0010] The first mounting part is used to connect with the vehicle frame, and the first overlapping step is used to connect with the protective fastener.
[0011] In some possible implementations, the second connector includes a second mounting portion and a second transfer portion that is bent relative to the second mounting portion, wherein the free end of the second transfer portion is configured with a bent second overlapping step;
[0012] The second mounting part is used to connect with the vehicle frame, and the second overlapping step is used to connect with the protective fastener.
[0013] In some possible implementations, the first mounting portion is provided with at least one mounting hole and at least one adjustment slot at intervals, the opening direction of the adjustment slot being disposed towards the edge side of the first mounting portion, and fasteners passing through both the mounting hole and the adjustment slot; and / or,
[0014] The second mounting part is provided with at least one positioning hole and at least one assembly slot at intervals. The opening direction of the assembly slot is provided towards the edge side of the second mounting part. The fastener passes through both the positioning hole and the assembly slot.
[0015] In some possible implementations, reinforcing ribs are connected between the first mounting portion and the first transfer portion, and between the first overlapping step and the first transfer portion; and / or,
[0016] Reinforcing ribs are connected between the second mounting part and the second transfer part, and between the second overlapping step and the second transfer part.
[0017] In some possible implementations, the first overlapping step includes a plurality of spaced-apart first overlapping plates, each first overlapping plate having a through first connecting hole, and the first overlapping plate and the protective fastener are connected by fasteners passing through the first connecting holes; and / or,
[0018] The second overlapping step includes a plurality of spaced second overlapping plates, each with a through second connecting hole, and the second overlapping plate and the protective fastener are connected by fasteners passing through the second connecting holes.
[0019] In some possible implementations, the first connector and / or the second connector are provided with a mounting handle on the side facing the frame.
[0020] In some possible implementations, at least one of the first connector, the second connector, and the protective fastener is provided with a hollow portion.
[0021] On the other hand, this application provides a vehicle including a vehicle body and a drive shaft protection device as described in any of the above claims disposed on the vehicle body.
[0022] The driveshaft protection device and vehicle provided in this application are fixed to the vehicle frame at intervals using a first connector and a second connector to form stable support anchor points. Both ends of the protective fastener are detachably connected to both the first and second connectors. When inspecting and maintaining the driveshaft, only the protective fastener needs to be removed without completely removing the first and second connectors, which facilitates the inspection and maintenance of the driveshaft. In addition, since the first and second connectors are detachably connected to the vehicle frame, and both ends of the protective fastener are detachably connected to both the first and second connectors, the first connector, the second connector, and the protective fastener can be installed in stages when assembling the driveshaft protection device, without having to install the entire device onto the vehicle frame at the same time. This reduces the labor intensity of the assembly personnel and facilitates the assembly of the protective device. Attached Figure Description
[0023] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.
[0024] Figure 1 This is a perspective view of the drive shaft protection device in the embodiments of this application;
[0025] Figure 2 This is a top view of the drive shaft protection device in the embodiments of this application;
[0026] Figure 3 This is a side view of the drive shaft protection device in an embodiment of this application.
[0027] Explanation of reference numerals in the attached figures
[0028] 100 - First connector;
[0029] 101-First mounting section; 1011-Mounting hole; 1012-Debugging slot; 102-First transfer section; 103-First overlapping step; 1031-First overlapping plate; 1032-First connecting hole;
[0030] 200 - Second connector;
[0031] 201-Second mounting section; 2011-Positioning hole; 2012-Assembly slot; 202-Second transfer section; 203-Second overlapping step; 2031-Second overlapping plate; 2032-Second connecting hole;
[0032] 300 - Protective fasteners;
[0033] 400 - Reinforcing ribs;
[0034] 500 - Install handle;
[0035] 600 - Hollowed-out section.
[0036] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation
[0037] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0038] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0039] In the description of this application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0040] The terms "first," "second," "third," "fourth," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in a sequence other than those illustrated or described herein.
[0041] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or apparatus that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or apparatus.
[0042] As mentioned in the background section, since heavy vehicles and equipment often need to operate under complex working conditions, the drive shaft can be easily damaged by stones, potholes, etc. on the road surface during operation or travel, so the drive shaft needs to be protected.
[0043] Currently, the protective shaft is usually covered directly with a one-piece sheet metal. However, the one-piece sheet metal parts are large in size, inconvenient to disassemble and assemble, and not conducive to the maintenance and repair of the drive shaft in the later stage.
[0044] Based on the above description, one or more embodiments of this application provide a driveshaft protection device and a vehicle. The following describes the solutions of the embodiments of this application in conjunction with the accompanying drawings.
[0045] like Figure 1 and Figure 2 As shown, the drive shaft protection device of this application embodiment includes a first connector 100 and a second connector 200 arranged at intervals, and also includes a protective fastener 300.
[0046] The first connector 100 and the second connector 200 are both used for detachable connection with the vehicle frame; one end of the protective fastener 300 is detachably connected to the first connector 100 and the other end is detachably connected to the second connector 200. The protective fastener 300 is configured to, together with the first connector 100 and the second connector 200, form a protective space through which the vehicle drive shaft passes.
[0047] As can be seen from the above description, the drive shaft protection device provided in this application embodiment is fixed to the vehicle frame at intervals by the first connector 100 and the second connector 200 to form a stable support anchor point. Both ends of the protective fastener 300 are detachably connected to the first connector 100 and the second connector 200. When inspecting and maintaining the drive shaft, only the protective fastener 300 needs to be removed without completely removing the first connector 100 and the second connector 200, which facilitates the inspection and maintenance of the drive shaft.
[0048] Furthermore, since the first connector 100 and the second connector 200 are detachably connected to the frame, and both ends of the protective fastener 300 are detachably connected to the first connector 100 and the second connector 200, the first connector 100, the second connector 200 and the protective fastener 300 can be installed in stages when assembling the drive shaft protective shaft device, without having to install the whole device onto the frame at the same time. This reduces the labor intensity of the assembly personnel and facilitates the assembly of the protective device.
[0049] In this embodiment, the frame is the core skeleton of the chassis, serving as the basic load-bearing structure of the entire vehicle. Assemblies such as the engine, transmission, and cab are fixed to the frame via a suspension system. One end of the drive shaft is connected to the output end of the transmission, and the other end is connected to the input end of the drive axle, and is suspended and fixed below the frame crossbeam via bearing seats. The first connector 100 and the second connector 200 are detachably connected to the frame. The protective fastener 300 covers the outside of the drive shaft, forming a protective space together with the first connector 100 and the second connector 200.
[0050] In some embodiments, the first connector 100 and the protective fastener 300 are connected by fasteners that pass through both of them; and / or, the second connector 200 and the protective fastener 300 are connected by fasteners that pass through both of them.
[0051] Specifically, the first connector 100 and the protective fastener 300 are connected by fasteners that pass through both of them, and the second connector 200 and the protective fastener 300 are connected by fasteners that pass through both of them. The fasteners can be bolts.
[0052] like Figure 1 As shown, in some embodiments, the first connector 100 includes a first mounting portion 101 and a first transfer portion 102 bent relative to the first mounting portion 101. The free end of the first transfer portion 102 is constructed with a bent first overlapping step 103. The first mounting portion 101 is used to connect with the vehicle frame, and the first overlapping step 103 is used to connect with the protective fastener 300.
[0053] The second connector 200 includes a second mounting portion 201 and a second transfer portion 202 that is bent relative to the second mounting portion 201. The free end of the second transfer portion 202 is constructed with a bent second overlapping step 203. The second mounting portion 201 is used to connect with the vehicle frame, and the second overlapping step 203 is used to connect with the protective fastener 300.
[0054] In the above embodiments, for example, the first connector 100, the second connector 200, and the protective fastener 300 are all integrally stamped metal parts. The bending direction of the first mounting portion 101 is opposite to the bending direction of the first overlapping step 103, thereby making the overall shape of the first connector 100 approximately "Z". The first mounting portion 101 is rigidly connected to the frame, transferring the impact load received by the protective fastener 300 to the frame, preventing external gravel, potholes, and other road conditions from directly contacting the drive shaft and damaging it. Here, the first mounting portion 101 can be... Figure 1 The flat plate shown can also be an arc-shaped plate with a certain curvature, as long as it fits the bottom connection end face of the frame.
[0055] Similarly, in the second connector 200, the bending direction of the second mounting portion 201 is opposite to the bending direction of the second overlapping step 203, thus making the overall shape of the second connector 200 approximately "Z". The second mounting portion 201 is rigidly connected to the frame, transferring the impact load received by the protective fastener 300 to the frame, preventing external gravel, potholes, and other road conditions from directly contacting the drive shaft and damaging it. Here, the second mounting portion 201 can be... Figure 3 The flat plate shown can also be an arc-shaped plate with a certain curvature, as long as it fits the bottom connection end face of the frame.
[0056] As an alternative implementation, the first connector 100 and the second connector 200 are symmetrically arranged relative to the protective fastener 300. When the protective fastener 300 is impacted, the impact force is simultaneously diverted to both sides of the frame through the symmetrically arranged first connector 100 and second connector 200, forming a bidirectional force transmission path, thereby avoiding the excessive load-bearing capacity and deformation of the connector on one side due to asymmetrical design.
[0057] In some embodiments, the first mounting portion 101 is provided with at least one mounting hole 1011 and at least one adjustment slot 1012 at intervals, the opening direction of the adjustment slot 1012 is provided towards the edge side of the first mounting portion 101, and fasteners are passed through both the mounting hole 1011 and the adjustment slot 1012; and / or, the second mounting portion 201 is provided with at least one positioning hole 2011 and at least one assembly slot 2012 at intervals, the opening direction of the assembly slot 2012 is provided towards the edge side of the second mounting portion 201, and fasteners are passed through both the positioning hole 2011 and the assembly slot 2012.
[0058] Specifically, taking the first connector 100 as an example, the first mounting part 101 is provided with a mounting hole 1011 and an adjustment slot 1012. The mounting hole 1011 is used to fix the bolts through the holes on the frame. The diameter of the adjustment slot 1012 is similar to the diameter of the mounting hole 1011. The opening of the adjustment slot 1012 extends out of the first mounting part 101. Thus, in the actual installation process, the bolts can be pre-positioned on the frame with a certain gap between the bolts and nuts. The adjustment slot 1012 of the first connector 100 is hooked onto the pre-positioned bolts. One hand holds one end of the first connector 100, and the other hand fixes the bolts on the mounting hole 1011. After fixing the bolts on the mounting hole 1011, the nuts are tightened to fix the bolts on the adjustment slot 1012, thus completing the fixation of the first connector 100 to the frame.
[0059] With the above settings, the bolts that cooperate with the debugging slot 1012 can pre-position the first connector 100, enabling workers to perform bolt installation and fixing work in the mounting hole 1011 with one hand, thereby improving assembly efficiency and reducing assembly difficulty.
[0060] As an alternative implementation, the mounting hole 1011 and the debugging slot 1012 can be set to multiple, and can be flexibly set according to the weight and size of the first connector 100, the second connector 200 and the protective fastener 300.
[0061] Generally, the second mounting portion 201 on the second connector 200 can be configured with reference to the structure of the first mounting portion 101 on the first connector 100 described above, and will not be described again in this embodiment.
[0062] In some embodiments, reinforcing ribs 400 are connected between the first mounting portion 101 and the first transfer portion 102, and between the first overlapping step 103 and the first transfer portion 102; and / or, reinforcing ribs 400 are connected between the second mounting portion 201 and the second transfer portion 202, and between the second overlapping step 203 and the second transfer portion 202.
[0063] In this embodiment of the application, reinforcing ribs 400 are connected between the first mounting part 101 and the first transfer part 102, and between the first overlapping step 103 and the first transfer part 102; and reinforcing ribs 400 are connected between the second mounting part 201 and the second transfer part 202, and between the second overlapping step 203 and the second transfer part 202.
[0064] Specifically, the reinforcing rib 400 can be fixed to the first connector 100 and the second connector 200 by welding, such as... Figure 3 As shown, Figure 3In this design, since the bending directions of the first mounting part 101 and the first overlapping step 103 are opposite to those of the first transfer part 102, the reinforcing rib 400 between the first mounting part 101 and the first transfer part 102 is located on the outside of the protective space, and the reinforcing rib 400 between the first overlapping step 103 and the first transfer part 102 is located on the inside of the protective space. This design can effectively improve the overall connection strength of the drive shaft protection device and ensure the impact resistance and deformation resistance of the drive shaft protection device.
[0065] It should be noted that the reinforcing rib 400 on the second connector 200 can be set with reference to the reinforcing rib 400 on the first connector 100. That is, the reinforcing rib 400 between the second mounting part 201 and the second transfer part 202 is located on the outside of the protective space, and the reinforcing rib 400 between the second overlapping step 203 and the second transfer part 202 is located on the inside of the protective space.
[0066] like Figure 2 As shown, in some embodiments, the first overlapping step 103 includes a plurality of spaced-apart first overlapping plates 1031, each first overlapping plate 1031 having a through first connecting hole 1032, and the first overlapping plate 1031 and the protective fastener 300 being connected by fasteners passing through the first connecting hole 1032; and / or, the second overlapping step 203 includes a plurality of spaced-apart second overlapping plates 2031, each second overlapping plate 2031 having a through second connecting hole 2032, and the second overlapping plate 2031 and the protective fastener 300 being connected by fasteners passing through the second connecting hole 2032.
[0067] Specifically, taking the first connector 100 as an example, multiple first overlapping plates 1031 are arranged at intervals on the first overlapping step 103. At least a portion of the multiple first overlapping plates 1031 are connected to the protective fastener 300 through the first connecting hole 1032, while the remaining portions can simply overlap and abut against the protective fastener 300. The multiple spaced first overlapping plates 1031 on the first overlapping step 103 can reduce the overall weight of the first overlapping step 103, making the first overlapping step 103 connected to the protective fastener 300 as lightweight and labor-saving as possible while ensuring connection strength, thus facilitating assembly by workers.
[0068] Of course, the second overlapping step 203 on the second connector 200 can refer to the structural design of the first overlapping step 103 on the first connector 100, which will not be described again in this embodiment.
[0069] In some embodiments, the first connector 100 and / or the second connector 200 are provided with a mounting handle 500 on the side facing the vehicle frame. The mounting handle 500 is a rectangular handle and is located inside the protective space. The mounting handle 500 facilitates assembly and disassembly by workers, thereby improving assembly efficiency.
[0070] In some embodiments, such as Figure 1 As shown, at least one of the first connector 100, the second connector 200, and the protective fastener 300 is provided with a hollow portion 600. Specifically, the first connector 100, the second connector 200, and the protective fastener 300 are all provided with hollow portions 600, and the shape of the hollow portion 600 can be... Figure 1 The rectangle or triangle in the design can also be other shapes. Setting the hollow part 600 can further reduce the overall weight of the protective device, which is conducive to achieving lightweight design.
[0071] In this embodiment, the protective fastener 300 can be formed into a plate shape by stamping a high-strength alloy plate. The protective fastener 300 has openings on both sides for passing bolts through. One side opening is connected to the first connecting hole 1032 on the first connecting member 100, and the other side opening is connected to the second connecting hole 2032 on the second connecting member 200, thereby forming a detachable connection between the protective fastener 300 and the first connecting member 100 and the second connecting member 200.
[0072] In the actual assembly process, the first connector 100 and the second connector 200 can be fixed to the frame first, and then the protective fastener 300 can be connected to the first connector 100 and the second connector 200. This design also facilitates the step-by-step assembly of the split components, eliminating the problems of bulkiness and inconvenient assembly of traditional one-piece protective plates.
[0073] This application also provides a vehicle, including a vehicle body and a driveshaft protection device as described in any of the above embodiments connected to the vehicle body. Since the vehicle of this application includes the driveshaft protection device as described in any of the above embodiments, it has all the advantages of a driveshaft protection device.
[0074] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.
[0075] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.
Claims
1. A drive shaft protection device, characterized in that, include: A first connector and a second connector are arranged at intervals, both of which are used for detachable connection to the vehicle frame; The protective fastener has one end detachably connected to the first connector and the other end detachably connected to the second connector. The protective fastener is configured to, together with the first connector and the second connector, form a protective space through which the vehicle drive shaft passes.
2. The drive shaft protection device according to claim 1, characterized in that, The first connector and the protective fastener are connected by fasteners that pass through both of them; and / or, the second connector and the protective fastener are connected by fasteners that pass through both of them.
3. The drive shaft protection device according to claim 2, characterized in that, The first connector includes a first mounting part and a first transfer part that is bent relative to the first mounting part. The free end of the first transfer part is constructed with a bent first overlapping step. The first mounting part is used to connect with the vehicle frame, and the first overlapping step is used to connect with the protective fastener.
4. The drive shaft protection device according to claim 3, characterized in that, The second connector includes a second mounting portion and a second transfer portion that is bent relative to the second mounting portion. The free end of the second transfer portion is constructed with a bent second overlapping step. The second mounting part is used to connect with the vehicle frame, and the second overlapping step is used to connect with the protective fastener.
5. The drive shaft protection device according to claim 4, characterized in that, The first mounting part is provided with at least one mounting hole and at least one adjustment slot at intervals. The opening direction of the adjustment slot is set towards the edge side of the first mounting part. Fasteners are inserted through both the mounting hole and the adjustment slot. And / or, The second mounting part is provided with at least one positioning hole and at least one assembly slot at intervals. The opening direction of the assembly slot is provided towards the edge side of the second mounting part. The fastener passes through both the positioning hole and the assembly slot.
6. The drive shaft protection device according to claim 4, characterized in that, Reinforcing ribs are connected between the first mounting part and the first transfer part, and between the first overlapping step and the first transfer part; and / or, Reinforcing ribs are connected between the second mounting part and the second transfer part, and between the second overlapping step and the second transfer part.
7. The drive shaft protection device according to claim 4, characterized in that, The first overlapping step includes a plurality of spaced-apart first overlapping plates, each first overlapping plate having a through first connecting hole. The first overlapping plate and the protective fastener are connected by fasteners passing through the first connecting holes; and / or, The second overlapping step includes a plurality of spaced second overlapping plates, each with a through second connecting hole, and the second overlapping plate and the protective fastener are connected by fasteners passing through the second connecting holes.
8. The drive shaft protection device according to any one of claims 1 to 7, characterized in that, The first connector and / or the second connector are provided with a mounting handle on the side facing the vehicle frame.
9. The drive shaft protection device according to any one of claims 1 to 7, characterized in that, At least one of the first connector, the second connector, and the protective fastener has a hollowed-out portion.
10. A vehicle, characterized in that, Includes a vehicle body and a driveshaft protection device provided on the vehicle body as described in any one of claims 1 to 9.