Rope discharge mechanism for vehicle towing device and vehicle towing device

Abstract

The application provides a kind of vehicle traction device's rope arranging mechanism, for the cable of vehicle traction device is tightened and is arranged, and the rope arranging mechanism includes shell, partition, rope arranging assembly and pre-tightening assembly, and the inside of shell forms accommodating space;Partition forms two parts of rope arranging bin and pre-tightening bin by separating accommodating space;Rope arranging assembly is arranged in rope arranging bin;Pre-tightening assembly is arranged in pre-tightening bin, and pre-tightening assembly includes fixed pulley, movable pulley and elastic element, fixed pulley is fixed in pre-tightening bin, movable pulley is slidable in pre-tightening bin relative to fixed pulley, and the both ends of elastic element are connected with shell and movable pulley respectively, and elastic element provides the elastic force required for movable pulley to slide away from fixed pulley direction, when the cable is arranged, cable enters pre-tightening bin, is guided into rope arranging bin by fixed pulley and movable pulley, and is arranged by rope arranging assembly to complete rope arranging.The rope arranging mechanism of vehicle traction device provided by the application can prevent the generation of rope entering fluctuation, and increase the stability of rope arranging.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, specifically to a rope-laying mechanism for a vehicle traction device and a vehicle traction device. Background Technology

[0002] Currently, during vehicle testing, there are situations where it is necessary to use a vehicle traction device to tow the vehicle and retrieve cables. In some experiments, the retrieval distance is long, and the cable, in addition to its load-bearing function, also integrates signal and power lines. Furthermore, the cable retriever and excess cable must be stored inside the vehicle or mobile machinery, requiring sufficient space for the retriever and accommodating the long cable length. In related technologies, vehicle traction devices suffer from unstable cable routing due to rope feeding fluctuations in the cable routing mechanism during cable retrieval. Summary of the Invention

[0003] To at least partially solve the above problems, according to the first aspect of this application, embodiments of this application provide a rope-laying mechanism for a vehicle traction device, used to tighten and organize the cable of the vehicle traction device. The rope-laying mechanism includes a housing, a partition, a rope-laying assembly, and a pre-tensioning assembly. The housing has an internal receiving space. The partition divides the receiving space into a rope-laying chamber and a pre-tensioning chamber. The rope-laying assembly is disposed in the rope-laying chamber. The pre-tensioning assembly is disposed in the pre-tensioning chamber. The pre-tensioning assembly includes a fixed pulley, a movable pulley, and an elastic element. The fixed pulley is fixed in position in the pre-tensioning chamber, and the movable pulley is slidable relative to the fixed pulley in the pre-tensioning chamber. The two ends of the elastic element are respectively connected to the housing and the movable pulley. The elastic element provides the movable pulley with the elastic force required to slide away from the fixed pulley. When laying the cable, the cable enters the pre-tensioning chamber, is guided by the fixed pulley and the movable pulley, enters the rope-laying chamber, and is laid by the rope-laying assembly.

[0004] In some embodiments, the pretensioning assembly further includes a fixed pulley bracket and a movable pulley bracket. The fixed pulley includes a first fixed pulley, and the movable pulley includes a first movable pulley and a second movable pulley. The fixed pulley bracket is fixedly connected to the housing, and the first fixed pulley is disposed on the fixed pulley bracket. The first movable pulley and the second movable pulley are respectively disposed at both ends of the movable pulley bracket, and the middle part of the movable pulley bracket is slidably connected to the fixed pulley bracket. The first movable pulley and the second movable pulley are coplanar with the first fixed pulley. An elastic element is sleeved on the fixed pulley bracket and is located on the side of the movable pulley bracket opposite to the first fixed pulley. The two ends of the elastic element are respectively connected to the housing and the movable pulley bracket, and the elastic element is used to provide tension to the movable pulley bracket.

[0005] In some embodiments, one end of the housing forming the pre-tightening chamber is provided with an end cap, the end cap, a partition, and the housing forming the chamber wall of the pre-tightening chamber; the fixed pulley also includes a second fixed pulley and a third fixed pulley disposed opposite to each other, the second fixed pulley and the third fixed pulley are disposed on the end cap, the second fixed pulley and the third fixed pulley are coplanar with the first fixed pulley, and a gap is formed between the second fixed pulley and the third fixed pulley for the cable to pass through; a first through hole for the cable to pass through is opened on the end cap, the position of the first through hole corresponds to the position of the gap between the second fixed pulley and the third fixed pulley.

[0006] In some embodiments, the rope-laying mechanism further includes a first drive motor, which is connected to a second fixed pulley and a third fixed pulley. The first drive motor drives the second fixed pulley and the third fixed pulley to rotate in opposite directions, and the tangent direction of the adjacent positions of the second fixed pulley and the third fixed pulley points perpendicularly to the partition.

[0007] In some embodiments, the fixed pulley further includes a fourth fixed pulley, which is disposed on the partition and is coplanar with the first fixed pulley; the partition is provided with a second through hole for the cable to pass through, and the position of the second through hole corresponds to the position of the fourth fixed pulley.

[0008] In some embodiments, a bottom cover is provided at one end of the housing where the rope storage compartment is formed, the bottom cover, the partition, and the housing forming the compartment wall of the rope storage compartment; the rope arrangement assembly includes a rope arrangement pulley and a winding shaft, the winding shaft is rotatably disposed in the rope storage compartment, and the rope arrangement pulley is capable of sliding along the axial direction of the winding shaft.

[0009] In some embodiments, the rope-laying assembly further includes a slide rail, a slider, and a lead screw; the slide rail is parallel to the winding shaft, and the slider is slidably disposed on the slide rail; the lead screw is parallel to the slide rail, the lead screw is threadedly engaged with the slider, and the rope-laying pulley is disposed on the slider.

[0010] In some embodiments, the rope-laying pulley is oscillatingly mounted on the slider, and the oscillation axis of the rope-laying pulley is parallel to the axis of the winding shaft.

[0011] In some embodiments, the rope winding mechanism further includes a second drive motor and a third drive motor, both of which are mounted on the bottom cover. The second drive motor is connected to a lead screw drive, and the third drive motor is connected to a winding shaft drive.

[0012] According to a second aspect of this application, embodiments of this application provide a vehicle traction device, which includes the rope laying mechanism provided in any embodiment of the first aspect of this application.

[0013] The vehicle traction device and the vehicle traction device provided in the embodiments of this application, by setting a pre-tensioning component, allow the cable to pass around both the fixed pulley and the movable pulley simultaneously during cable laying. The elastic element provides the movable pulley with the elastic force required to slide away from the fixed pulley, so that the cable is tensioned in the pre-tensioning chamber, preventing cable feeding fluctuations and increasing the stability of cable laying. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the rope-laying mechanism provided in an embodiment of this application;

[0016] Figure 2 This is a schematic diagram of the rope arrangement assembly and pretensioning assembly provided in an embodiment of this application;

[0017] Figure 3 This is a cross-sectional view of the rope-laying mechanism provided in an embodiment of this application.

[0018] The attached figures are labeled as follows:

[0019] 1. Housing; 2. Pre-tensioning chamber; 3. Rope winding chamber; 4. Cable; 11. End cap; 12. Partition plate; 13. Bottom cover; 21. Fixed pulley; 22. Mounting base; 23. Fixed pulley bracket; 24. Moving pulley bracket; 25. First drive motor; 26. Elastic element; 31. Lead screw; 32. Slide rail; 33. Winding shaft; 34. Slider; 35. Support; 36. Rope winding pulley; 37. Second drive motor; 38. Third drive motor.

[0020] It should be understood that the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Furthermore, the same or similar reference numerals denote the same or similar components. Detailed Implementation

[0021] The preferred embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are merely some, not all, of the embodiments of this invention. 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 claimed in this application.

[0022] The terms "first," "second," and similar words used in this application do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "contains" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "above," "below," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, this relative positional relationship may also change accordingly.

[0023] According to a first aspect of this application, embodiments of this application provide a cable management mechanism for a vehicle towing device, used for tightening and organizing the cable of the vehicle towing device. For example... Figure 1 , Figure 2 and Figure 3 As shown, the rope-laying mechanism includes a housing 1, a partition 12, a rope-laying assembly, and a pre-tensioning assembly. The housing 1 forms an accommodating space. The partition 12 divides the accommodating space into two parts: a rope-laying chamber 3 and a pre-tensioning chamber 2. The rope-laying assembly is located in the rope-laying chamber 3. The pre-tensioning assembly is located in the pre-tensioning chamber 2. The pre-tensioning assembly includes a fixed pulley 21, a movable pulley, and an elastic element 26. The fixed pulley is fixed in position in the pre-tensioning chamber 2, and the movable pulley is slidable relative to the fixed pulley in the pre-tensioning chamber 2. The two ends of the elastic element 26 are connected to the housing 1 and the movable pulley, respectively. The elastic element 26 provides the movable pulley with the elastic force required to slide away from the fixed pulley. When laying the cable 4, the cable 4 enters the pre-tensioning chamber 2, is guided by the fixed pulley and the movable pulley, enters the rope-laying chamber 3, and is laid by the rope-laying assembly.

[0024] Specifically, the housing 1 can be cylindrical, for example, a circle. The partition 12 divides the interior of the cylindrical housing 1 into two parts: one part serves as a pre-tensioning chamber 2, and the other part as a rope-laying chamber 3. The space of the rope-laying chamber 3 can be larger than that of the pre-tensioning chamber 2. A rope-laying assembly is installed in the rope-laying chamber 3 to lay the cables 4 into place, thereby achieving cable winding and organization. Figure 3 When laying the cable 4, the cable 4 is wound around both the fixed pulley and the movable pulley. The elastic element 26 provides the movable pulley with the elastic force required to slide away from the fixed pulley, so as to achieve continuous tension on the cable 4 and avoid the fluctuation of the cable. For example, the elastic element 26 can be a helical spring.

[0025] The vehicle traction device rope laying mechanism provided in the embodiments of this application, by setting a pre-tensioning component, allows the cable 4 to pass over both the fixed pulley and the movable pulley simultaneously during rope laying. The elastic element 26 provides the movable pulley with the elastic force required to slide away from the fixed pulley, so that the cable 4 is tensioned in the pre-tensioning chamber 2, preventing rope feeding fluctuations and increasing the stability of rope laying.

[0026] like Figure 2As shown, in some embodiments, the pre-tensioning assembly further comprises a fixed pulley bracket 23 and a movable pulley bracket 24, the fixed pulley 21 comprises a first fixed pulley, and the movable pulleys comprise a first movable pulley and a second movable pulley; the fixed pulley bracket 23 is fixedly connected to the housing 1, and the first fixed pulley is disposed on the fixed pulley bracket 23; the first movable pulley and the second movable pulley are respectively disposed at two ends of the movable pulley bracket 24, the middle part of the movable pulley bracket 24 is slidably connected to the fixed pulley bracket 23, and the first movable pulley, the second movable pulley and the first fixed pulley are arranged in the same plane; the elastic member 26 is sleeved on the fixed pulley bracket 23, the elastic member 26 is located on the side of the movable pulley bracket 24 facing away from the first fixed pulley, two ends of the elastic member 26 are respectively connected to the housing 1 and the movable pulley bracket 24, and the elastic member 26 is configured to provide a pulling force for the movable pulley bracket 24.

[0027] Specifically, in conjunction with Figure 2 , the fixed pulley bracket 23 may be a two-prong fork shape, the first fixed pulley may be disposed between two prong portions of the two-prong fork, the movable pulley bracket 24 may be slidably connected to the rod portion of the two-prong fork. The first movable pulley and the second movable pulley are respectively located on both sides of the rod portion of the two-prong fork, the cable 4 sequentially passes through the first movable pulley, the first fixed pulley and the second movable pulley to enter the rope arranging bin 3, and the first movable pulley, the first fixed pulley and the second movable pulley may be arranged in a delta shape. The elastic member 26 is sleeved on the rod portion of the two-prong fork, the rod portion of the two-prong fork limits the radial movement of the elastic member 26, two ends of the elastic member 26 are respectively connected to the housing 1 and the movable pulley bracket 24, the elastic member 26 is configured to provide a pulling force for the movable pulley bracket 24, so as to drive the first movable pulley and the second movable pulley to move in a direction away from the first fixed pulley, thereby tensioning the cable 4 between the first and second movable pulleys and the first fixed pulley. The elastic member 26 can not only provide a pulling force for the movable pulley bracket 24 to realize the pre-tensioning of the cable 4, but also offset the rope feeding fluctuation of the cable 4 through telescopic deformation, so as to realize stable rope feeding, which is beneficial to the rope arranging in the rope arranging bin 3.

[0028] In some embodiments, an end cover 11 is disposed at an end of the housing 1 forming the pre-tensioning bin 2, and the end cover 11, the partition plate 12 and the housing 1 form the bin wall of the pre-tensioning bin 2; the fixed pulley 21 further comprises a second fixed pulley and a third fixed pulley disposed opposite to each other, the second fixed pulley and the third fixed pulley are disposed on the end cover 11, the second fixed pulley and the third fixed pulley are arranged in the same plane as the first fixed pulley, and a gap for the cable 4 to pass through is formed between the second fixed pulley and the third fixed pulley; the end cover 11 is provided with a first through hole for the cable 4 to pass through, and the position of the first through hole corresponds to the position of the gap between the second fixed pulley and the third fixed pulley. In this embodiment, by providing the second fixed pulley and the third fixed pulley, the gap between the two can initially restrict the radial movement of the cable 4, further reducing the rope feeding fluctuation. The end cover 11 and the partition plate 12 may be arranged in parallel.

[0029] In some embodiments, the rope-laying mechanism further includes a first drive motor 25, which is connected to a second and a third fixed pulley. The first drive motor 25 drives the second and third fixed pulleys to rotate in opposite directions, with the tangents of adjacent positions of the second and third fixed pulleys pointing perpendicularly to the partition 12. In this embodiment, by controlling the rotational speed of the first drive motor 25, the second and third fixed pulleys can provide constraints on the axial movement of the cable 4, thereby stabilizing the axial movement speed of the cable 4, reducing fluctuations in the rope feeding speed, and making the rope laying more stable. The second and third fixed pulleys can be mounted on the end cover 11 via the mounting base 22.

[0030] In some embodiments, the fixed pulley 21 further includes a fourth fixed pulley, which is disposed on the partition 12 and is coplanar with the first fixed pulley. The partition 12 has a second through hole for the cable 4 to pass through, and the position of the second through hole corresponds to the position of the fourth fixed pulley. In this embodiment, by providing the fourth fixed pulley, the cable 4 can be guided into the rope storage compartment 3, allowing the cable 4 to pass through the second through hole in a preset direction and enter the rope storage compartment 3. The fourth fixed pulley can be mounted on the partition 12 via the mounting base 22.

[0031] In some embodiments, a bottom cover 13 is provided at one end of the housing 1 where the rope-laying chamber 3 is formed. The bottom cover 13, the partition 12, and the housing 1 form the chamber wall of the rope-laying chamber 3. The rope-laying assembly includes a rope-laying pulley 36 and a winding shaft 33. The winding shaft 33 is rotatably disposed in the rope-laying chamber 3, and the rope-laying pulley 36 can slide along the axial direction of the winding shaft 33. In this embodiment, the cable 4 is guided to the winding shaft 33 by the rope-laying pulley 36. The rope-laying pulley 36 slides along the axial direction of the winding shaft 33, which can achieve uniform rope laying along the axial direction of the winding shaft 33. The partition 12 and the bottom cover 13 can be arranged in parallel, and the two ends of the winding shaft 33 can be rotatably connected to the partition 12 and the bottom cover 13 respectively. The rope-laying pulley 36 can slide between the partition 12 and the bottom cover 13.

[0032] In some embodiments, the rope-laying assembly further includes a slide rail 32, a slider 34, and a lead screw 31; the slide rail 32 is parallel to the winding shaft 33, and the slider 34 is slidably mounted on the slide rail 32; the lead screw 31 is parallel to the slide rail 32, and the lead screw 31 is threadedly engaged with the slider 34; a rope-laying pulley 36 is mounted on the slider 34. In this embodiment, the rope-laying pulley 36 is driven by a lead screw-slider mechanism to achieve sliding, which is simple in structure and facilitates precise control. In this embodiment, there can be two slide rails 32 to achieve stable support for the slider 34, and the two ends of the slide rail 32 and the lead screw 31 can be rotatably connected to the partition plate 12 and the bottom cover 13, respectively.

[0033] In some embodiments, the rope-laying pulley 36 is oscillatingly mounted on the slider 34, with its oscillation axis parallel to the axis of the winding shaft 33. In this embodiment, the oscillating pulley 36 is oscillatingly mounted on the slider 34, allowing for angle adjustment within a certain range as the number of cable layers 4 on the winding shaft 33 increases, making it easier to lay the cable 4 on the winding shaft 33. In this embodiment, the support 35 of the rope-laying pulley 36 can be hinged to the slider 34, thereby enabling the oscillation of the rope-laying pulley 36.

[0034] In some embodiments, the rope-laying mechanism further includes a second drive motor 37 and a third drive motor 38, both of which are mounted on the bottom cover 13. The second drive motor 37 is connected to the lead screw 31, and the third drive motor 38 is connected to the winding shaft 33. In this embodiment, the second drive motor 37 and the third drive motor 38 can drive the lead screw 31 and the winding shaft 33 respectively. Preferably, one or more of the first drive motor 25, the second drive motor 37, and the third drive motor 38 can be servo motors to achieve more precise drive control.

[0035] According to a second aspect of this application, embodiments of this application provide a vehicle traction device, which includes the rope laying mechanism provided in any embodiment of the first aspect of this application.

[0036] The vehicle traction device and its cable winding mechanism provided in the embodiments of this application include a pre-tensioning chamber for winding up the cable and changing the cable tension to reduce cable speed fluctuations; and a cable winding chamber for collecting and organizing the cable. The pre-tensioning chamber winds up the cable through multiple guide roller sets and pre-tensions the overwound cable through a movable pulley bracket sliding on a two-pronged fixed pulley bracket, as well as the fixed and movable pulleys. The cable winding mechanism and vehicle traction device provided in the embodiments of this application have a compact structure, a pre-tensioning function, and can prevent cable winding instability caused by cable feeding fluctuations.

[0037] Based on the various embodiments of this application described above, in the absence of explicit denial or conflict, the technical features of one embodiment may be advantageously combined with one or more other embodiments.

[0038] While specific embodiments of this application have been described in detail by way of examples, those skilled in the art should understand that the above examples are for illustrative purposes only and are not intended to limit the scope of this application. Those skilled in the art should understand that modifications can be made to the above embodiments or equivalent substitutions can be made to some technical features without departing from the scope and spirit of this application. The scope of this application is defined by the appended claims.

Claims

1. A rope winding mechanism for a vehicle traction device, used for tightening and organizing the cables of the vehicle traction device, characterized in that, include: A housing, the interior of which forms a receiving space; A partition divides the accommodating space into two parts: a rope storage compartment and a pre-tensioning compartment. A rope-laying assembly, wherein the rope-laying assembly is disposed in the rope-laying compartment; A pre-tensioning assembly is disposed in the pre-tensioning chamber. The pre-tensioning assembly includes a fixed pulley, a movable pulley, and an elastic element. The fixed pulley is fixed in position in the pre-tensioning chamber, and the movable pulley is slidable relative to the fixed pulley in the pre-tensioning chamber. The two ends of the elastic element are respectively connected to the housing and the movable pulley. The elastic element provides the movable pulley with the elastic force required to slide away from the fixed pulley. When the cable is laid out, the cable enters the pre-tensioning chamber, is guided by the fixed pulley and the movable pulley, enters the cable laying chamber, and is laid out by the cable laying assembly.

2. The rope-laying mechanism according to claim 1, characterized in that, The pretensioning assembly further includes a fixed pulley bracket and a movable pulley bracket. The fixed pulley includes a first fixed pulley, and the movable pulley includes a first movable pulley and a second movable pulley. The fixed pulley bracket is fixedly connected to the housing, and the first fixed pulley is disposed on the fixed pulley bracket; The first movable pulley and the second movable pulley are respectively disposed at both ends of the movable pulley bracket, and the middle part of the movable pulley bracket is slidably connected to the fixed pulley bracket. The first movable pulley and the second movable pulley are coplanar with the first fixed pulley. The elastic element is sleeved on the fixed pulley bracket and is located on the side of the movable pulley bracket opposite to the first fixed pulley. The two ends of the elastic element are respectively connected to the housing and the movable pulley bracket, and the elastic element is used to provide tension to the movable pulley bracket.

3. The rope-laying mechanism according to claim 2, characterized in that, An end cap is provided at one end of the shell that forms the pre-tightening chamber, and the end cap, the partition, and the shell form the chamber wall of the pre-tightening chamber; The fixed pulley also includes a second fixed pulley and a third fixed pulley arranged opposite to each other. The second fixed pulley and the third fixed pulley are disposed on the end cap. The second fixed pulley and the third fixed pulley are coplanar with the first fixed pulley. A gap is formed between the second fixed pulley and the third fixed pulley for the cable to pass through. The end cap has a first through hole for the cable to pass through, and the position of the first through hole corresponds to the gap position between the second fixed pulley and the third fixed pulley.

4. The rope-laying mechanism according to claim 3, characterized in that, It also includes a first drive motor, which is connected to the second fixed pulley and the third fixed pulley in a transmission connection. The first drive motor drives the second fixed pulley and the third fixed pulley to rotate in opposite directions, and the tangent direction of the adjacent positions of the second fixed pulley and the third fixed pulley points perpendicularly to the partition.

5. The rope-laying mechanism according to claim 2, characterized in that, The fixed pulley further includes a fourth fixed pulley, which is disposed on the partition plate and is coplanar with the first fixed pulley. The partition plate is provided with a second through hole for the cable to pass through, and the position of the second through hole corresponds to the position of the fourth fixed pulley.

6. The rope-laying mechanism according to claim 1, characterized in that, The shell has a bottom cover at one end where a rope storage compartment is formed, and the bottom cover, the partition, and the shell form the wall of the rope storage compartment; The rope-laying assembly includes a rope-laying pulley and a winding shaft. The winding shaft is rotatably disposed in the rope-laying chamber, and the rope-laying pulley is capable of sliding along the axial direction of the winding shaft.

7. The rope-laying mechanism according to claim 6, characterized in that, The rope assembly also includes a slide rail, a slider, and a lead screw; The slide rail is parallel to the winding shaft, and the slider is slidably disposed on the slide rail; The lead screw is parallel to the slide rail, and the lead screw is threadedly engaged with the slider. The rope pulley is disposed on the slider.

8. The rope-laying mechanism according to claim 7, characterized in that, The rope-laying pulley is oscillatingly mounted on the slider, and the oscillation axis of the rope-laying pulley is parallel to the axis of the winding shaft.

9. The rope-laying mechanism according to claim 7, characterized in that, It also includes a second drive motor and a third drive motor, both of which are mounted on the bottom cover. The second drive motor is connected to the lead screw, and the third drive motor is connected to the winding shaft.

10. A vehicle traction device, characterized in that, Includes the rope-laying mechanism as described in any one of claims 1-9.

Images