Mooring device and working method thereof
By designing a mooring device with adjustable angle and force direction, the problem of uneven force on the vehicle in traditional mooring devices is solved, higher test stability and safety are achieved, and the testing needs of different models are adapted.
Patent Information
- Application Number
- CN202510756830.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-09
- Publication Date
- 2025-09-09
AI Technical Summary
Traditional mooring devices have angle and height differences between the towing position and the fixed anchor point of different vehicles, which causes uneven force on the vehicles and interferes with the test results.
A mooring device is designed, including two oppositely arranged mooring modules. Each module consists of a traction member, a tensioning member and an adjustment mechanism. The angle and force direction of the traction member are adjusted by the adjustment mechanism. A fixed frame and tensioning member below the ground provide a stable foundation to achieve uniform restraint of the vehicle.
It improves the applicability and flexibility of the mooring device, enhances the stability and safety of the test, avoids the anchor point occupying ground space, reduces shaking and displacement, and ensures the accuracy and safety of the test.
Smart Images
Figure CN120609583A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the field of vehicle testing devices, and in particular to a mooring device and a working method thereof. Background Art
[0002] A mooring device is a device used to secure a test vehicle to a chassis dynamometer to prevent accidental movement or loss of control when the vehicle is operating under high load or at high speed, thereby protecting the safety of test personnel and equipment. Traditional mooring devices primarily use a towing rope / chain to securely connect the vehicle's tires or frame to a fixed anchor point. A manual tensioning mechanism is then installed between the vehicle's towing position and the fixed anchor point. In actual use, this connection is secured by manual tensioning, allowing the vehicle to remain stable when subjected to external forces during testing. However, due to the large angle and height differences between the towing position and the fixed anchor point of different vehicles, the force applied to the vehicle during the mooring process is uneven, thus interfering with test results. Summary of the Invention
[0003] In order to solve the technical problems existing in the above background technology, the present invention provides a mooring device and a working method thereof.
[0004] The technical solutions of the present invention are as follows:
[0005] A mooring device is used to restrain a test vehicle on a chassis dynamometer in a pit. The mooring device comprises two oppositely arranged mooring modules. Both mooring modules comprise a traction member, a tensioning member and an adjustment mechanism.
[0006] Specifically, the adjustment mechanism includes a bracket and a height-adjustable rotating assembly thereon, and the tensioning member is arranged on the lower side of the bracket. One end of the two traction members in the two mooring modules is respectively configured to be connected to the traction points on both sides of the test vehicle, and the other end is connected to the corresponding tensioning member after passing through the rotating assembly on the side. The two tensioning members in the two mooring modules are both arranged below the ground and connected to the corresponding traction members below the ground. The two tensioning members are configured to be able to tighten / loosen the two traction members through reverse movement, thereby fixing / releasing the constraints on the test vehicle.
[0007] Furthermore, the mooring device also includes a fixed frame arranged below the ground, with a top plate flush with the ground level on the top, two tensioning members arranged in the fixed frame, and transition holes cooperating with the traction members are provided at the positions of the two ends of the top plate corresponding to the two brackets, and the traction member is connected to the tensioning member through the transition hole.
[0008] During use, when tethering different vehicle models, the traction member's traction angle and force direction can be altered by adjusting the height of the rotating assembly, thereby achieving the optimal traction state. Furthermore, the tensioning member, combined with a fixed frame below the ground, provides a more stable anchoring foundation, reducing sway or displacement caused by external forces, further enhancing test stability and reliability. Furthermore, the traction member's anchoring position is concealed below the ground, eliminating floor space and avoiding the potential tripping hazards or equipment interference caused by protruding anchor points in traditional tethering systems, thereby improving the safety and cleanliness of the test environment.
[0009] Specifically, the traction member is a traction belt or rope with adjustable length. For example, a retractable traction belt with a locking device can be used. During use, the force direction and traction state of the traction member can be further optimized by adjusting the length. Furthermore, during the adjustment process, if there is a large height difference between the traction points, the traction member can be pre-tensioned, thereby facilitating the tensioning member to quickly tighten the traction member.
[0010] It should be noted that both ends of the traction belt or traction rope are usually provided with connection structures, such as hooks, to facilitate connection with the traction point and tensioning member of the test vehicle.
[0011] Furthermore, the edge of the transition hole is a rounded structure, which on the one hand facilitates the traction member to pass through the top plate, and on the other hand protects the traction member, reduces the wear and damage of the traction member when passing through the transition hole, and enhances the safety and durability of the device.
[0012] As for the setting of the tensioning member, the tensioning member is a telescopic cylinder arranged horizontally in the fixed frame, the traction member is connected to the output end of the telescopic cylinder, and the telescopic directions of the two telescopic cylinders in the two mooring modules are opposite.
[0013] During use, the two traction components can be controlled to fix or release the constraints on the test vehicle by controlling the telescopic movement of the telescopic cylinder. The independent control design of the two telescopic cylinders means that even if the test vehicle deviates toward one of the mooring modules, the telescopic cylinder in the other mooring module can act alone to pull the test vehicle straight, thereby quickly correcting the deviation and improving the accuracy and safety of the test.
[0014] Based on the above structural design, the bracket is fixed to the ground by its own gravity or by a fixed structure. When in use, the angle of the bracket and the height of the rotating assembly can be freely adjusted so that the traction member is always in the most suitable traction state, thereby improving the flexibility and efficiency of the device.
[0015] As an implementation method, the bracket is fixed to the ground by its own weight, with its bottom plane flush with the ground level. During operation, the bracket can be fixed in position by its own weight, and when the towing member is tightened, the bracket will not move. Therefore, during use, the angle of the bracket and the tie-down angle can be freely adjusted to adapt to the towing point position and height difference of different vehicle models.
[0016] As another implementation, the support's own weight is not restricted, but the support is fixed to the ground via a fixing structure. The fixing structure includes two fixed shafts arranged opposite each other, one of which is fixedly connected to the ground and rotatably connected to the support, and the other fixed shaft is vertically screwed to the support and can press against the ground to fix the support.
[0017] In the mooring device as described above, an opening is vertically provided on one side of the bracket, an adjustment shaft with adjustable height is horizontally provided in the opening, and the rotating assembly includes a plurality of rolling bearings fixed on the adjustment shaft.
[0018] When in use, one end of the traction member is connected to the towing point of the test vehicle, and the other end is connected to the tensioning member after passing around the outer ring of the rolling bearing. By adjusting the height of the adjusting shaft to change the height of the rolling bearing, the height of the fulcrum or force point of the traction member is changed, thereby adjusting the fulcrum height and force direction of the traction member to adapt to the towing point position and height difference of vehicles of different models.
[0019] The present invention also provides a working method using the above-mentioned mooring device, comprising the following steps:
[0020] First, connect one end of the two traction members to the traction points on both sides of the test vehicle;
[0021] Next, the other end of the traction member is passed through the corresponding side rotation assembly and connected to the tensioning member below the ground;
[0022] Subsequently, the bracket angle and the vertical height of the rotating assembly are adjusted so that the angle between the traction member located between the bracket and the traction point of the test vehicle and the horizontal plane is less than a preset threshold, and the two tensioning members are controlled to move in opposite directions to tighten the two traction members, thereby generating a restraining force to fix the test vehicle;
[0023] After the test is completed, the tensioning member is controlled to reset in the reverse direction to release the tension and release the restraint on the test vehicle.
[0024] In the above steps, the "preset threshold" can be set according to actual needs, such as 5° or 10°, to ensure that the traction member located between the bracket and the traction point of the test vehicle is close to the horizontal state. Among them, making the traction member close to the horizontal state can maximize the optimization of the distribution of traction force, reduce unnecessary vertical force components, ensure the effective use of traction force, and avoid interference with the vehicle posture.
[0025] It should be noted that in some cases, the angle of the traction member needs to be selected according to the specific situation to ensure that the force on the vehicle is uniform and stable and to obtain accurate test results.
[0026] The beneficial effect achieved by the present invention compared to the prior art is that by adjusting the height of the rotating assembly, the traction angle and force direction of the traction member can be effectively changed, thereby adapting to the traction point position and height difference of vehicles of different models. This design not only improves the applicability of the mooring device, but also enhances its flexibility and safety in actual use. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] In the attached figure:
[0028] Figure 1 This is a schematic structural diagram of a mooring device according to this embodiment;
[0029] Figure 2 This is a schematic diagram of the use of a mooring device according to this embodiment;
[0030] Figure 3 for Figure 2 A top view of
[0031] Figure 4 Schematic diagram of the installation structure of the telescopic cylinder in this embodiment;
[0032] Figure 5 for Figure 4 A top view of
[0033] Figure 6 for Figure 5 AA cross-section diagram in;
[0034] Figure 7 Schematic diagram of the structure of the adjustment mechanism in this embodiment;
[0035] Figure 8 for Figure 7 Forward schematic diagram of ;
[0036] Figure 9 Figure 7 lateral schematic diagram of ;
[0037] Figure 10 for Figure 7 A top view of
[0038] The components represented by the reference numerals in the figure are:
[0039] 1. Ground; 2. Fixed frame; 21. Frame; 22. Top plate; 221. Transition hole; 23. Support plate; 24. Limit plate; 25. Fixed shaft; 3. Telescopic cylinder; 4. Adjustment mechanism; 41. Bracket; 411. Opening; 42. Adjustment shaft; 43. Rolling bearing. DETAILED DESCRIPTION
[0040] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.
[0041] Example
[0042] Combine Figure 1 This embodiment provides a mooring device for confining a test vehicle to a chassis dynamometer in a pit, which includes two mooring modules arranged opposite to each other, and both mooring modules include a traction member, a tensioning member and an adjustment mechanism 4.
[0043] Combine Figure 7 The adjustment mechanism 4 includes a bracket 41 and a height-adjustable rotating assembly thereon, and a tensioning member is arranged on the lower side of the bracket 41. One end of the two traction members in the two mooring modules is respectively configured to be connected to the traction points on both sides of the test vehicle, and the other end is respectively connected to the corresponding tensioning member after passing through the rotating assembly on the side. The two tensioning members in the two mooring modules are both arranged below the ground 1 and connected to the corresponding traction members below the ground 1. The two tensioning members are configured to be able to tighten / loosen the two traction members through reverse movement, thereby fixing / releasing the constraints on the test vehicle.
[0044] like Figure 4-Figure 6 , and also includes a fixed frame 2 arranged below the ground 1. The fixed frame 2 includes a horizontally arranged rectangular frame 21, the upper and lower sides of which are connected. The tensioning member is a telescopic cylinder 3 arranged horizontally in the rectangular frame. The traction member is connected to the output end of the telescopic cylinder 3, and the telescopic directions of the two telescopic cylinders 3 in the two mooring modules are opposite.
[0045] The fixed frame 2 also includes a support plate 23, a limit plate 24 and a fixed shaft 25. The support plate 23 is a U-shaped structure arranged in the middle of the rectangular frame with the opening 411 facing upward. There are two limit plates 24, which are respectively arranged on the upper sides of the two side plates on both sides of the opening 411 of the support plate 23. An arc-shaped notch is provided between the two side plates on both sides of the opening 411 of the support plate 23 and the corresponding limit plates 24. The fixed shaft 25 is fixed in the arc-shaped notch. The axial direction of the fixed shaft 25 is perpendicular to the setting direction of the fixed frame 2. The fixed ends of the two telescopic cylinders 3 are rotatably connected to the fixed shaft 25. This structural design facilitates the disassembly and maintenance of the telescopic cylinders 3.
[0046] The upper and lower sides of the telescopic cylinder 3 are also provided with anti-collision structures, such as anti-collision plates made of polyurethane, which can effectively protect the telescopic cylinder 3 from impact damage due to its excellent elasticity, wear resistance and oil resistance. The telescopic cylinder 3 of this embodiment is a hydraulic cylinder.
[0047] During use, the two traction members can be controlled to secure or release the test vehicle by controlling the extension and retraction of the hydraulic cylinders. The independent control of the two hydraulic cylinders ensures that even if the test vehicle deviates toward one of the tethering modules, the hydraulic cylinder in the other module can independently pull the test vehicle straight, providing rapid deviation correction and improving test accuracy and safety.
[0048] A top plate 22 flush with the horizontal plane of the ground 1 is provided on the top of the fixed frame 2. Two hydraulic cylinders are arranged in the fixed frame 2. Transition holes 221 cooperating with the traction member are provided at the positions of the two ends of the top plate 22 corresponding to the two brackets 41, and the traction member is connected to the hydraulic cylinder through the transition hole 221.
[0049] When in use, when applied to the mooring work of vehicles of different models, the traction angle and force direction of the traction member are changed by adjusting the height of the rotating assembly, so that the traction member can be in the most suitable traction state.
[0050] Furthermore, the hydraulic cylinder, combined with a fixed frame 2 below ground level, provides a more stable anchoring foundation, reducing sway or displacement caused by external forces, further enhancing test stability and reliability. Furthermore, the anchoring location of the traction member is concealed below ground level, eliminating its space. This avoids the potential tripping hazards and equipment interference associated with anchor points protruding from the ground level in traditional mooring systems, thereby improving the safety and cleanliness of the testing environment.
[0051] The traction member is a traction belt or a traction rope, and the length of the traction member is adjustable. In this embodiment, the traction member is preferably a traction belt, for example, a telescopic traction belt with a locking device is used, and the material of the traction belt is preferably made by combining synthetic fiber and steel wire rope or by weaving a mixture of multiple synthetic fibers.
[0052] During use, the force direction and traction state of the traction belt can be further optimized by adjusting the length of the traction belt. At the same time, during the adjustment process, the traction belt can be pre-tightened when the height difference of the traction point is large, so that the hydraulic cylinder can quickly tighten the traction belt.
[0053] It should be noted that both ends of the traction belt or traction rope are usually provided with connection structures, such as hooks, to facilitate connection with the traction point and hydraulic cylinder of the test vehicle.
[0054] Combine Figure 4The edge of the transition hole 221 is a rounded structure, which on the one hand facilitates the traction belt to pass through the top plate 22, and on the other hand protects the traction belt, reduces the wear and damage of the traction belt when passing through the transition hole 221, and enhances the safety and durability of the device.
[0055] Based on the above structural design, the bracket 41 is fixed to the ground 1 by its own gravity or by a fixed structure. During use, the angle of the bracket 41 and the height of the rotating assembly can be freely adjusted, so that the traction belt is always in the most suitable traction state, improving the flexibility and efficiency of the device.
[0056] Combine Figure 7-10 At least three sides of the bracket 41 are also provided with triangular reinforcement frames, and the rotating assembly is located on the side where one of the reinforcement frames is located. An opening 411 is vertically provided on one side of the bracket 41, and the reinforcement frame has a corresponding airtight opening that passes through the opening 411 to facilitate the connection of the traction belt through the rotating assembly to the vehicle and the telescopic cylinder. A height-adjustable adjustment shaft 42 is horizontally provided in the opening 411, and the rotating assembly includes a plurality of rolling bearings 43 fixed on the adjustment shaft 42. During use, one end of the traction belt is connected to the towing point of the test vehicle, and the other end is connected to the hydraulic cylinder after passing around the outer ring of the rolling bearing 43. By adjusting the height of the adjustment shaft 42, the height of the rolling bearing 43 is changed, thereby changing the height of the fulcrum or force point of the traction belt, thereby adjusting the fulcrum height and force direction of the traction belt to adapt to the towing point position and height difference of different vehicle models.
[0057] Combine Figure 7 Specifically, the adjusting shaft 42 is a cylindrical shaft, and a flat surface is provided at both ends of the adjusting shaft near the opening 411. The bracket 41 is provided with vertical planes corresponding to the planes at both ends of the adjusting shaft 42, and multiple threaded holes are provided vertically corresponding to the vertical planes. The planes at both ends of the adjusting shaft 42 are in contact with the vertical plane of the bracket 41, and are detachably connected to the bracket 41 by bolts.
[0058] As an implementation method, bracket 41 is fixed to ground 1 by its own weight, with its bottom surface flush with the horizontal plane of ground 1. During operation, bracket 41 can be fixed in position by its own weight, and bracket 41 will not move when the towing belt is tightened. Therefore, during use, the angle of bracket 41 and the tie-down angle can be freely adjusted to adapt to the towing point position and height difference of different vehicle models.
[0059] As another implementation, the weight of the bracket 41 itself is not restricted, but the bracket 41 is fixed to the ground 1 via a fixing structure. The fixing structure may include two fixed shafts 25 arranged opposite each other, one of which is fixedly connected to the ground 1 and rotatably connected to the bracket 41, and the other fixed shaft 25 is vertically spirally connected to the bracket 41 and can press against the ground 1 to fix the bracket 41.
[0060] The present invention also provides a working method using the above-mentioned mooring device, comprising the following steps:
[0061] First, connect one end of the two traction straps to the traction points on both sides of the test vehicle;
[0062] Next, the other end of the traction belt is passed around the corresponding side rotation assembly and downward through the transition hole 221, and then connected to the output end of the hydraulic cylinder below the ground 1;
[0063] Subsequently, the angle of the bracket 41 and the vertical height of the rotating assembly are adjusted so that the angle between the traction belt between the bracket 41 and the traction point of the test vehicle and the horizontal plane is less than a preset threshold. The two hydraulic cylinders are controlled to move in opposite directions to tighten the two traction belts, thereby generating a restraining force to fix the test vehicle.
[0064] After the test is completed, the hydraulic cylinder is controlled to reset in the opposite direction to release the tension and release the restraint on the test vehicle.
[0065] In the above steps, the "preset threshold" can be set according to actual needs, such as 5° or 10°, to ensure that the traction belt between the bracket 41 and the traction point of the test vehicle is close to the horizontal state. Among them, making the traction belt close to the horizontal state can maximize the optimization of the distribution of traction force, reduce unnecessary vertical force components, ensure the effective use of traction force, and avoid interference with the vehicle posture.
[0066] Specifically, when the traction belt is close to a horizontal state, the direction of the traction force is mainly distributed in the horizontal direction, and the vertical component is relatively small. This can avoid the vehicle being pulled up or down due to excessive vertical component, thereby reducing interference with the vehicle posture and ensuring the accuracy of the test results. At the same time, the horizontal traction force can be evenly distributed on the vehicle's traction point, avoiding excessive local force and protecting the vehicle structure and traction point.
[0067] It should be noted that in some cases, the angle of the traction belt needs to be selected according to the specific situation to ensure that the force on the vehicle is uniform and stable and to obtain accurate test results.
[0068] Combine Figure 2 and Figure 3 In the application of some heavy vehicles, mooring devices are usually provided at the front and rear ends of the vehicle. The fixed frames of the two mooring modules are respectively located in the pits at the front and rear ends of the chassis dynamometer. The chassis dynamometer is located on the lower side of the vehicle in the figure and is not shown in the figure. The adjustment mechanisms 4 of the two mooring modules are respectively provided on both sides of the front and rear ends of the vehicle. Specifically, Figure 3The double-dotted line in the figure is the setting path of the traction belt between the vehicle and the bracket 41. It can be seen that the four traction belts in the two groups of tie-down modules are tilted and tightened on the four corners of the vehicle to improve the tie-down effect.
[0069] As another improved implementation, dynamic adjustment of the vehicle is added during the vehicle testing process. First, tension sensors are added to the connection ends of the four hydraulic cylinders and their corresponding traction belts. During the initial tensioning, the control system records the value of each tension sensor as the baseline tension value and sets an allowable deviation threshold (for example, ±5% or ±10% of the baseline value). During the vehicle testing process, the control system monitors the value of each tension sensor in real time and compares it with the baseline value. If the tension value of a certain traction belt exceeds the allowable deviation range, the control system will automatically adjust the pressure of the corresponding hydraulic cylinder (for example, by dynamically adjusting the hydraulic cylinder output force through a proportional valve or servo system) to restore the tension value to the baseline range, thereby ensuring stability during the vehicle testing process and uniform force on each traction belt. The control system can be a test bench integrated control system or a controller separately set for the hydraulic cylinder and tension sensor of the mooring device. This embodiment preferably adopts the test bench integrated control system, and the hydraulic cylinder and tension sensor of the mooring device are connected to the test bench integrated control system through a standard interface. Choosing this integrated solution can effectively reduce costs.
[0070] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be covered by the scope of protection of the present invention.
Claims
1. A tethering device for restraining a test vehicle on a chassis dynamometer in a pit, characterized in that: It includes two oppositely arranged tethering modules; The mooring module comprises a traction member, a tensioning member and an adjustment mechanism (4); The adjusting mechanism (4) comprises a bracket (41) and a height-adjustable rotating assembly thereon, and the tensioning member is arranged on the lower side of the bracket (41); One end of the two traction members in the two mooring modules is respectively configured to be connected to the traction points on both sides of the test vehicle, and the other end is respectively connected to the corresponding tensioning member after passing through the rotating assembly on the side; The two tensioning members in the two mooring modules are both arranged below the ground (1) and connected to corresponding traction members below the ground (1), and the two tensioning members are arranged to be able to tighten / loosen the two traction members through reverse motion, thereby fixing / releasing the constraints on the test vehicle.
2. A mooring device according to claim 1, characterized in that: It also includes a fixed frame (2) arranged below the ground (1), with a top plate (22) on top thereof flush with the horizontal plane of the ground (1); The two tensioning members are arranged in a fixed frame (2); transition holes (221) cooperating with the traction members are provided at positions at both ends of the top plate (22) corresponding to the two brackets (41); and the traction members pass through the transition holes (221) and are connected to the tensioning members.
3. A mooring device according to claim 2, characterized in that: The traction member is a traction belt or a traction rope, and its length is adjustable.
4. A mooring device according to claim 3, characterized in that: The edge of the transition hole (221) is a rounded structure.
5. A mooring device according to claim 2, characterized in that: The tensioning member is a telescopic cylinder (3) arranged transversely in the fixed frame (2); the traction member is connected to the output end of the telescopic cylinder (3); and the telescopic directions of the two telescopic cylinders (3) in the two mooring modules are opposite.
6. A mooring device according to claim 2, characterized in that: The bracket (41) is fixed on the ground (1) by its own gravity or by a fixed structure.
7. A mooring device according to claim 6, characterized in that: The bracket (41) is fixed on the ground (1) by its own gravity, and its bottom plane is flush with the horizontal plane of the ground (1).
8. A mooring device according to claim 6, characterized in that: The bracket (41) is fixed on the ground (1) via a fixing structure, wherein the fixing structure includes two fixing shafts (25) arranged opposite to each other; One of the fixed shafts (25) is fixedly connected to the ground (1) and is rotationally connected to the bracket (41), and the other fixed shaft (25) is vertically spirally connected to the bracket (41) and can be pressed against the ground to fix the bracket (41).
9. A mooring device according to claim 1, characterized in that: An opening (411) is vertically provided on one side of the bracket (41), and a height-adjustable adjustment shaft (42) is laterally provided in the opening (411). The rotating assembly includes a plurality of rolling bearings (43) fixed on the adjustment shaft (42).
10. A method for operating a mooring device according to any one of claims 1 to 9, characterized in that: The following steps are involved: First, connect one end of the two traction members to the traction points on both sides of the test vehicle; Next, the other end of the traction member is passed around the corresponding side rotation assembly and connected to a tensioning member below the ground (1); Subsequently, the angle of the bracket (41) and the vertical height of the rotating assembly are adjusted so that the angle between the traction member located between the bracket and the traction point of the test vehicle and the horizontal plane is less than a preset threshold value, and finally the two tensioning members are controlled to move in opposite directions to tighten the two traction members, thereby forming a restraining force to fix the test vehicle; After the test is completed, the tensioning member is controlled to reset in the reverse direction to release the tension and release the restraint on the test vehicle.