A dual belt connection device for a longitudinal object towing system

Abstract

The application provides a double-belt connecting device for a longitudinal target traction system, which comprises a power unit, a first turning connecting block, a pedestrian bottom plate and a second turning connecting block arranged in sequence, the first turning connecting block is a 90-degree turning connecting block, and the second turning connecting block is a 180-degree turning connecting block; the power unit, the first turning connecting block, the pedestrian bottom plate and the second turning connecting block are connected through the same traction belt. The double-belt connecting device for the longitudinal target traction system can realize the variable distance and turning of the traction system belt, rubber is glued at the bottom of the support, the turning block and the counterweight block can be in good contact with the ground, the target can move along the predetermined route in the longitudinal direction through the connecting device, the influence of environmental factors on the test is reduced, the connection between the connecting blocks, the counterweight blocks and the counterweight blocks is reliable, the accessories are fixed reliably, and the connecting device is convenient to install and maintain.

Description

Technical Field

[0001] This invention belongs to the field of automotive testing equipment, and in particular relates to a dual-belt connection device for a longitudinal target traction system. Background Technology

[0002] With the continuous development of intelligent connected vehicle technology, automatic emergency braking (AEB) and forward collision warning (FCW) functions are becoming increasingly popular. In the 2021 edition of the China New Car Assessment Program (C-NCAP), a new longitudinal evaluation scenario has been added with pedestrians and two-wheeled vehicles as the target objects.

[0003] Currently, the testing scenario for longitudinal targets mainly uses a single-belt traction system. However, in actual testing, due to the influence of test environment conditions, test equipment, and site, especially in environments with high wind speeds, the target object is prone to deviating from the predetermined movement path during traction, making it difficult to complete the test smoothly. Summary of the Invention

[0004] In view of this, the present invention aims to propose a dual-belt connection device for a longitudinal target traction system. Through three types of connecting blocks, a certain number of counterweights, and a pedestrian base plate, the belt is guided, completing the arrangement of the longitudinal target traction scenario. This dual-belt connection device allows the target object to move along a predetermined path, improving the efficiency of the experiment and the accuracy of the results.

[0005] To achieve the above objectives, the technical solution of the present invention is implemented as follows:

[0006] A dual-belt connection device for a longitudinal target traction system includes a power unit, a first steering connection block, a pedestrian base plate, and a second steering connection block arranged in sequence. The first steering connection block is a 90° steering connection block, and the second steering connection block is a 180° steering connection block.

[0007] The power unit, the first steering connecting block, the pedestrian base plate, and the second steering connecting block are connected by the same traction belt. The wire ends of the traction belt are connected to the two wide sides of the pedestrian base plate, and the target object is installed on the pedestrian base plate.

[0008] Furthermore, a pitch-changing connecting block is also provided between the power unit and the first steering connecting block, the pitch-changing connecting block being used to change the width between the traction belts.

[0009] Furthermore, the power unit includes a drive wheel and a drive motor, with the output end of the drive motor connected to the drive wheel.

[0010] Furthermore, the first steering connection block includes a first base, the upper surface of the first base is recessed downward to form a first steering groove and a second steering groove, a pulley assembly is provided on the side of the first steering groove, and a smooth wheel assembly is provided on the side of the second steering groove.

[0011] The two ends of the first deflection groove are the inlet end and the outlet end, respectively. There is a 90° angle between the direction of the traction belt entering the groove at the inlet end and the direction of the traction belt exiting the groove at the outlet end.

[0012] The two ends of the second deflection groove are the inlet end and the outlet end, respectively. There is a 90° angle between the direction of the traction belt entering the groove at the inlet end and the direction of the traction belt exiting the groove at the outlet end.

[0013] Furthermore, the second steering connection block includes a second base, the upper surface of the second base is recessed downward to form a third steering groove, the third steering groove is U-shaped, and a light wheel assembly is provided on the side of the third steering groove.

[0014] Furthermore, mounting positions are provided at the center of the wide side of the pedestrian base, and the ends of the traction belt are connected to the two mounting positions of the pedestrian base respectively.

[0015] The pedestrian floor is also provided with a through groove that runs through the interior of the pedestrian floor and is set along the length of the pedestrian floor.

[0016] There are two through slots, and the two through slots are parallel.

[0017] Furthermore, the pitch connecting block includes a third base, the upper surface of which is recessed downward to form a first pitch groove and a second pitch groove, the first pitch groove and the second pitch groove being in the shape of an "eight".

[0018] A pulley assembly and a smooth wheel assembly are provided on the sides of the first and second pitch grooves.

[0019] Furthermore, the pulley assembly includes a triangular base plate, axle, pulley, elastic retaining ring, and washer arranged from top to bottom, and the first base and the third base are provided with receiving grooves for accommodating the pulley assembly.

[0020] Furthermore, the light wheel assembly includes a triangular base plate, axle, light wheel, elastic retaining ring, and washer arranged from top to bottom, and the first base, second base, and third base are provided with receiving grooves for accommodating the light wheel assembly.

[0021] Furthermore, counterweights are provided at the bottom of the first steering connecting block, the second steering connecting block, and the pitch connecting block.

[0022] Compared with the prior art, the dual-belt connection device for a longitudinal target traction system described in this invention has the following advantages:

[0023] The dual-belt connection device of the longitudinal target traction system designed in this invention can realize the pitch and direction of the traction system belt; at the same time, the rubber glued to the bottom of the support can ensure good contact between the transition block and the counterweight block and the ground. Through this connection device, the target object can be moved in the longitudinal direction according to a predetermined route, reducing the impact of environmental factors on the test. The connection between each connection block and the counterweight block, as well as between the counterweight blocks, is reliable. All accessories are reliably fixed, and the connection device is easy to install and maintain. Attached Figure Description

[0024] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0025] Figure 1 This is a three-dimensional view of the overall structural positional relationship described in an embodiment of the present invention;

[0026] Figure 2 This is a top view schematic diagram of the overall structural positional relationship described in an embodiment of the present invention;

[0027] Figure 3 This is a schematic diagram of the overall structure of the first steering connection block according to an embodiment of the present invention;

[0028] Figure 4 This is a partial schematic diagram of the first steering connection block according to an embodiment of the present invention;

[0029] Figure 5 This is a top view schematic diagram of the first steering connection block according to an embodiment of the present invention;

[0030] Figure 6 This is a schematic diagram of the second steering connection block structure according to an embodiment of the present invention;

[0031] Figure 7 This is a schematic diagram of the pedestrian floor structure according to an embodiment of the present invention;

[0032] Figure 8 This is a top view schematic diagram of the variable pitch connecting block according to an embodiment of the present invention;

[0033] Figure 9 This is a schematic diagram of the overall structure of the variable pitch connecting block according to an embodiment of the present invention;

[0034] Figure 10 This is a partial structural diagram of the variable pitch connecting block according to an embodiment of the present invention.

[0035] Explanation of reference numerals in the attached figures:

[0036] 1-Power unit; 2-First steering connecting block; 21-First base; 22-First steering groove; 23-Second steering groove; 3-Pedestrian base plate; 31-Mounting position; 32-Through groove; 4-Second steering connecting block; 41-Second base; 42-Third steering groove; 5-Traction belt; 6-Pitch connecting block; 61-Third base; 62-First pitch groove; 63-Second pitch groove; 7-Pulley assembly; 8-Smooth wheel assembly; 9-Triangular base plate; 91-Axle; 92-Smooth wheel; 93-Pulley; 94-Elastic retaining ring; 95-Washer; 10-Counterweight block. Detailed Implementation

[0037] It should be noted that, unless otherwise specified, the embodiments and features described in the present invention can be combined with each other.

[0038] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0039] The technical solution adopted in this invention is as follows: Based on the specifications of the traction belt 5, a bearing-equipped smooth wheel 92 and a pulley 93 are selected and fixed to the connecting block via an axle 91 and four different sized triangular plates; the connecting block has three types: a surface with a track for laying the traction belt 5, a back groove to ensure the weight of each connecting block is within the range of 20kg to 25kg, a variable-pitch connecting block 6 to change the center distance between the two belts from 30cm to 15cm, a 90° turning connecting block to achieve a smooth 90° turning arrangement of the belt, and a 180° turning connecting block to achieve a smooth 180° turning arrangement of the belt; the materials used for the connecting block and the counterweight block 10 are... The surface of the 45# steel is treated with black zinc plating, while the surfaces of the smooth wheel 92 and pulley 93 are treated with natural oxidation. Each connecting block and counterweight 10 is connected to the ground via a support, which is then fixed to the connecting blocks and counterweight 10 with nuts. The bottom of the support is connected to TPU material with bolts. After installation, the gap between each connecting block and the ground is 5mm. Each connecting block and counterweight 10 has grooves for easy repositioning. The connecting blocks and counterweight 10, as well as the counterweight 10s themselves, are connected via holes and pins. The connecting blocks have 9mm diameter holes around them, and the counterweight 10s have 8mm diameter pins and 9mm diameter holes around them. The pedestrian base plate 3 has a clamping device for fixing the traction belt 5 at the middle of both ends in the width direction. A traction belt 5 channel is provided at ±15cm from the center in the width direction to ensure the free movement of the traction belt 5.

[0040] To more clearly illustrate the present invention, the following description, in conjunction with the preferred embodiments and accompanying drawings, further explains the invention:

[0041] (1) Arrange the components according to Figure 1-10 After assembly, the following components were obtained: 61 variable pitch connecting blocks, 1 90° steering connecting block, 1 180° steering connecting block, and 106 counterweight blocks.

[0042] (2) Arrange the variable pitch connecting block 6, the 90° steering connecting block and the 180° steering connecting block according to... Figure 2 The blocks are placed in a manner that allows for the placement of two counterweights 10 around each connecting block. The counterweights 10 are fixed to the connecting blocks via pin holes. The pedestrian base plate 3 is then installed between the 90° and 180° connecting blocks using a traction belt 5. The traction belt 5 is positioned according to... Figure 2 The process of threading is shown in the diagram: Power unit 1 is installed. The power unit 1 can pull the belt 5 to achieve longitudinal movement.

[0043] In this scheme, the power unit 1 may include a transmission wheel and a transmission motor. The outer surface of the transmission wheel has teeth, and the traction belt 5 has teeth that mesh with the transmission wheel. The entire system uses the same traction belt 5. The two ends of the traction belt 5 are respectively tied to the two ends of the pedestrian base plate 3. The pedestrian base plate 3 is provided with mounting positions 31 for mounting target objects. Target objects can be mounted on it according to usage requirements, thus being applied in the testing process for intelligent connected vehicles.

[0044] like Figure 1 and Figure 2 As shown, the traction belt 5 passes through the variable pitch connecting block 6 after starting from the power structure. The variable pitch connecting block 6 is an optional component installed according to actual usage requirements. When the spacing between the traction belts 5 does not need to be adjusted, the variable pitch connecting block 6 can be omitted, and the power unit 1 can be directly connected to the first steering connecting block 2.

[0045] The function of the first steering connecting block 2 is to make a right-angle bend in the direction of the traction belt 5 in order to save space.

[0046] It should be noted that this device includes a smooth wheel assembly 8 and a pulley assembly 7. The smooth wheel assembly 8 mainly serves a guiding function, preventing the traction belt 5 from directly contacting the side wall of the groove and rubbing against it. Generally, the smooth wheel assembly 8 is placed where the deflection groove in the figure needs to turn. The pulley assembly 7 has the function of meshing with the traction belt 5, reducing slippage of the traction belt 5. As can be seen from the attached figure, the smooth wheel assembly 8 and the pulley assembly 7 in this scheme are set according to the force conditions of the traction belt 5 in actual use. For example, the smooth wheel assembly 8 can be used at the turning point where the wheel assembly needs to play a steering role. If the pulley 93 needs to mesh at the turning point to increase the friction of the traction belt 5 during rotation, the pulley assembly 7 needs to be used.

[0047] Those skilled in the art will recognize that the units and method steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, computer software, or a combination of both. To clearly illustrate the interchangeability of hardware and software, the components and steps of the various examples have been generally described in terms of functionality in the foregoing description. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementations should not be considered beyond the scope of this invention.

[0048] In the several embodiments provided in this application, it should be understood that the disclosed methods and systems can be implemented in other ways. For example, the division of units described above is merely a logical functional division, and in actual implementation, there may be other division methods. For instance, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. The aforementioned units may or may not be physically separated. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of the embodiments of the present invention according to actual needs.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions 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, and they should all be covered within the scope of the claims and specification of the present invention.

[0050] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A dual belt connection device for a longitudinal object pulling system, characterized by: The power unit (1), the first steering connecting block (2), the pedestrian bottom plate (3), and the second steering connecting block (4) are sequentially arranged, the first steering connecting block (2) is a 90° steering connecting block, and the second steering connecting block (4) is a 180° steering connecting block; The power unit (1), the first steering connecting block (2), the pedestrian bottom plate (3), and the second steering connecting block (4) are connected through the same traction belt (5), the line heads at both ends of the traction belt (5) are connected on the two wide edges of the pedestrian bottom plate (3), and the target object is installed on the pedestrian bottom plate (3); The power unit (1) and the first steering connecting block (2) are further provided with a variable-distance connecting block (6), and the variable-distance connecting block (6) is used for changing the width between the traction belts (5); The variable-distance connecting block (6) comprises a third base (61), the upper surface of the third base (61) is recessed downward to form a first variable-distance groove (62) and a second variable-distance groove (63), and the first variable-distance groove (62) and the second variable-distance groove (63) are in the shape of "8"; The first variable-distance groove (62) and the second variable-distance groove (63) are provided with a belt wheel set (7) and a light wheel set (8) on the side; The connecting block, the counterweight block, and the counterweight block are connected through holes and pins, the connecting block is provided with a hole with a diameter of 9 mm, and the counterweight block is provided with a pin with a diameter of 8 mm and a hole with a diameter of 9 mm; The first steering connecting block (2) comprises a first base (21), the upper surface of the first base (21) is recessed downward to form a first variable-direction groove (22) and a second variable-direction groove (23), the first variable-direction groove (22) is provided with a belt wheel set (7) on the side, and the second variable-direction groove (23) is provided with a light wheel set (8) on the side; The two ends of the first variable-direction groove (22) are respectively an inlet end and an outlet end, and the traction belt (5) entering the groove at the inlet end and the traction belt (5) exiting the groove at the outlet end have a 90° included angle; The two ends of the second variable-direction groove (23) are respectively an inlet end and an outlet end, and the traction belt (5) entering the groove at the inlet end and the traction belt (5) exiting the groove at the outlet end have a 90° included angle; The second steering connecting block (4) comprises a second base (41), the upper surface of the second base (41) is recessed downward to form a third variable-direction groove (42), the third variable-direction groove (42) is in the shape of "U", and the third variable-direction groove (42) is provided with a light wheel set (8) on the side; The center positions of the wide edges of the pedestrian bottom plate (3) are respectively provided with mounting positions (31), and the line heads at both ends of the traction belt (5) are respectively connected to the two mounting positions (31) of the pedestrian bottom plate (3); The pedestrian bottom plate (3) is further provided with a through groove (32), the through groove (32) penetrates the inside of the pedestrian bottom plate (3), and the through groove (32) is arranged along the length direction of the pedestrian bottom plate (3); The through groove (32) is provided with two, and the two through grooves (32) are parallel; The belt wheel set (7) comprises a triangular bottom plate (9), a wheel shaft (91), a belt wheel (93), an elastic retainer (94), and a gasket (95) arranged from top to bottom, and the first base (21) and the third base (61) are provided with accommodating grooves for accommodating the belt wheel set (7).

2. A dual belt connection for a longitudinal object pulling system according to claim 1, characterized in that: The power unit (1) comprises a transmission wheel and a transmission motor, and the output end of the transmission motor is connected with the transmission wheel.

3. A dual belt connection for a longitudinal object pulling system according to any one of claims 1 or 2, characterized in that: The light wheel set (8) comprises a triangular bottom plate (9), an axle (91), a light wheel (92), an elastic retainer (94), a gasket (95), a first base (21), a second base (41) and a third base (61) arranged from top to bottom.

4. A dual belt connection for a longitudinal object pulling system according to claim 1, characterized in that: The first steering connecting block (2), the second steering connecting block (4) and the variable-pitch connecting block (6) are all provided with a counterweight (10) at the bottom.

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