Pull rod type torsion beam lift and rotate assembly

Abstract

This invention belongs to the field of vehicle frames, specifically relating to a tie-rod type torsion beam lifting and rotating assembly. The drive mechanism includes a motor mounted on a base, with a reducer installed at the output end of the motor. The output end of the reducer is connected to a first gear, which is driven by a second gear on one side via a transmission shaft. The drive mechanism drives the directional tie rod to swing through the first and second gears on both sides, providing the pulling force required for lifting. During the lifting of the torsion beam, the first movable part begins to unfold, and the second movable part unfolds synchronously under the limit of the shaft, raising the two supports simultaneously, thus realizing the height adjustment of the supports. During the support process, the lifting force is borne by the two movable parts, and the motor and reducer no longer bear the load after outputting the driving force, effectively reducing the impact of lifting on the drive mechanism. The rotating mechanism rotates stably before and after lifting and under load. The overall drive assembly is low in height, small in size, compact in structure, and has a large lifting force.

Description

Technical Field

[0001] This invention relates to the field of vehicle frames, and more specifically to a tie rod type torsion beam lifting and rotating assembly. Background Technology

[0002] The lifting and rotating assembly is an assembly that integrates lifting and rotating functions. It is used in the load-bearing parts of a vehicle to provide the functions of lifting and adjusting the load.

[0003] The existing vehicle lifting and rotating assembly causes impact on the motor and reducer during the lifting and moving process. In addition, the hydraulic design of the lifting structure has insufficient stability. Under long-term use, the lifting structure may fail due to the pressure of heavy objects and the impact of road bumps. Summary of the Invention

[0004] (I) Purpose of the Invention

[0005] To address the technical problems existing in the background art, this invention proposes a tie rod type torsion beam lifting and rotating assembly, which features a compact structure, large lifting force, vertical force on the connecting rod, and no impact on the motor and reducer.

[0006] (II) Technical Solution

[0007] To solve the above technical problems, the present invention provides a tie rod type torsion beam lifting and rotating assembly, the drive mechanism including a motor mounted on a base, a reducer mounted on the output end of the motor, a first gear connected to the output end of the reducer, and the first gear and a second gear on one side being driven by a transmission shaft;

[0008] The coupling mechanism includes brackets symmetrically mounted on the base, movable coupling rods mounted on the brackets, and a holding rod clamped between the other ends of the two coupling rods;

[0009] The lifting mechanism includes a directional tie rod that moves synchronously with the first gear and the second gear. The two directional tie rods are connected to a torsion beam via a pivot shaft. The torsion beam has a first movable part at one end facing the base and a second movable part at one end near the shaft.

[0010] The support mechanism includes a first support and a second support disposed on one side of the first movable part and the second movable part, and a support is installed on the upper part of the first support and the second support;

[0011] The rotating mechanism includes a rotary motor disposed on one side of the support, and a drive gear is installed at the output end of the rotary motor. The drive gear meshes with a rotary gear disposed in the middle of the support for transmission.

[0012] Preferably, the drive shaft passes through the through holes of the two drive shaft brackets, and the two drive shaft brackets are symmetrically mounted on the upper part of the base.

[0013] Preferably, the motor is mounted on the end of the base via a mounting bracket, and the first gear is covered with a dust cover.

[0014] Preferably, the first gear and the second gear are controlled to rotate synchronously by the cooperation of the motor and the reducer, and a protruding tie rod shaft is provided on one side of their shafts for connecting the steering tie rod.

[0015] Preferably, the first linkage of the first movable part is a double linkage, with a movable shaft provided at the upper, middle and lower parts. The upper part of the first linkage is connected to the torsion beam through the movable shaft, the middle part of the first linkage is closed or lifted through the movable shaft, and the lower part of the first linkage is connected to the bearing on the base through the movable shaft.

[0016] Preferably, the second linkage of the second movable part is a double linkage, both linkages are connected to the steering tie rod and the torsion beam through a pivot shaft, one end of the linkage is sleeved on the outer periphery of the shaft, and the other end of the other linkage is connected to the bearing seat on the base through a pivot shaft.

[0017] Preferably, when the steering rod is in motion, the first support and the second support rise or fall synchronously with the cooperation of the torsion beam, the first movable part and the second movable part, and the maximum height of the rise is the same as the height of the first movable part and the second movable part when they are unfolded vertically.

[0018] Preferably, four sets of the first support are provided, symmetrically installed in pairs on the movable shafts that cooperate with the two first movable parts, and six sets of the second support are provided, symmetrically installed in threes on the shafts that cooperate with the bracket and the torsion beam.

[0019] Preferably, the base has a notch at one end for mounting the rotary motor, the rotary motor is fixedly mounted on the support, and its output shaft passes through one end of the second support and is connected to the drive gear.

[0020] Preferably, when the support is raised or lowered, the drive gear and the rotating gear are always in a meshing transmission state.

[0021] The above-mentioned technical solution of the present invention has the following beneficial technical effects: the drive mechanism drives the directional tie rod to swing through the first gear and the second gear on both sides, providing the pulling force required for lifting. During the lifting process of the torsion beam, the first movable part begins to unfold, and the second movable part unfolds synchronously under the limit of the shaft, lifting the two supports synchronously, realizing the height adjustment of the supports. During the support process, the lifting force is borne by the two movable parts, and the motor and reducer no longer bear the load after outputting the driving force, effectively reducing the impact of lifting on the drive mechanism. The rotating mechanism rotates stably before and after lifting and under load. The overall drive assembly has a low height, small size, compact structure, and large lifting force. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the coupling mechanism of the present invention;

[0024] Figure 3 This is a side view of the lifting mechanism of the present invention.

[0025] Figure 4 This is a bottom-view structural diagram of the present invention;

[0026] Figure 5 This is a schematic diagram of the support mechanism structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the rotating mechanism structure of the present invention;

[0028] Figure 7 This is a schematic diagram of the support structure of the present invention.

[0029] Figure label:

[0030] 1. Base; 21. Motor; 22. Reducer; 23. First gear; 24. Drive shaft; 25. Second gear; 26. Drive shaft bracket; 31. Support; 32. Connecting rod; 33. Shaft; 41. Adjusting rod; 42. Torsion beam; 43. First movable part; 44. Second movable part; 51. First support; 52. Second support; 53. Support; 61. Rotary motor; 62. Drive gear; 63. Rotary gear. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to specific embodiments and the accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of the invention. Furthermore, descriptions of well-known structures and techniques are omitted in the following description to avoid unnecessarily obscuring the concept of the invention.

[0032] like Figure 1-7 As shown, the present invention proposes a tie rod type torsion beam lifting and rotating assembly, the drive mechanism of which includes a motor 21 mounted on a base 1, a reducer 22 mounted on the output end of the motor 21, a first gear 23 connected to the output end of the reducer 22, and the first gear 23 and a second gear 25 on one side are driven by a transmission shaft 24.

[0033] The coupling mechanism includes brackets 31 symmetrically mounted on the base 1, movable coupling rods 32 mounted on the brackets 31, and a holding rod 33 clamped between the other ends of the two coupling rods 32.

[0034] The lifting mechanism includes a directional tie rod 41 that moves synchronously with the first gear 23 and the second gear 25. The two directional tie rods 41 are connected to the torsion beam 42 via a pivot. The torsion beam 42 has a first movable part 43 at one end facing the base 1 and a second movable part 44 at the end near the shaft 33.

[0035] The support mechanism includes a first support 51 and a second support 52 disposed on one side of the first movable part 43 and the second movable part 44, and a support 53 is installed on the upper part of the first support 51 and the second support 52.

[0036] The rotating mechanism includes a rotary motor 61 disposed on one side of the support 53. A drive gear 62 is installed at the output end of the rotary motor 61, and the drive gear 62 meshes with the rotary gear 63 disposed in the middle of the support 53 for transmission.

[0037] It should be noted that when the directional lever 41 is in motion, the first support 51 and the second support 52 rise or fall synchronously with the cooperation of the torsion beam 42, the first movable part 43 and the second movable part 44. The maximum height of the rise is the same as the height of the first movable part 43 and the second movable part 44 when they are unfolded vertically. The position of the torsion beam 42 is adjusted by unfolding or closing the first movable part 43 and the second movable part 44, and the height of the first support 51 and the second support 52 is controlled at the same time when the states are switched. The coordinated adjustment of the height of the two can make the lifting force evenly transmitted to the support, so as to stably lift the heavy object above.

[0038] In this embodiment, during the lifting drive process, the motor 21 and the reducer 22 cooperate to drive the first gear 23 to rotate. The first gear 23 drives the second gear 25 to rotate synchronously through the transmission shaft 24. The first gear 23 and the second gear 25 respectively drive the directional tie rods 41 on both sides to swing, providing the pulling force required for the lifting. During the lifting process of the torsion beam 42, the first movable part 43 starts to unfold, and the second movable part 44 also starts to unfold under the limit of the shaft 33, raising the first support 51 and the second support 52 synchronously, realizing the height adjustment of the support 53. During the support process, the lifting force is borne by the first movable part 43 and the second movable part 44. The motor 21 and the reducer 22 no longer bear the load after outputting the driving force, effectively reducing the impact of lifting on the drive mechanism.

[0039] When the rotating mechanism is working, even if the support 53 rises or falls, the drive gear 62 and the rotating gear 63 remain engaged, allowing the upper load platform to rotate stably.

[0040] Among them, the double linkage of the first movable part is pulled by the torsion beam 42, the middle movable shaft pushes the connecting rod to unfold from the folded state to the vertical state, realizing the vertical force after being lifted, and the lower movable shaft is fixed on the base 1 to form a stable triangular support.

[0041] The double connecting rod of the second movable part 44 is sleeved at one end of the shaft 33 and hinged at the other end to the base 1, and unfolds synchronously with the rise of the torsion beam 42.

[0042] The connecting rod 32 of the coupling mechanism is designed to be movable. The two connecting rods 32 rotate and adjust their orientation during the pulling process, and the movement trajectory of the second movable part 44 is limited and supported by the clamping shaft 33.

[0043] To ensure the stable mounting of the drive shaft 24 above the base 1, the drive shaft 24 passes through the through holes of two drive shaft brackets 26, which are symmetrically mounted on the upper part of the base 1. The drive shaft brackets 26 are partially connected to the base 1, forming a double-end support structure to support the drive shaft 24, preventing deformation of the drive shaft 24 and gear meshing failure due to unilateral force. The remaining part is located above the motor 21 and the reducer 22, with the first gear 23 and the second gear 25 mounted at their two ends respectively. The first gear 23, the drive shaft 24, and the second gear 25 are combined to form a synchronous drive structure, distributing the radial load during gear transmission and ensuring the coaxiality and meshing stability of the first gear 23 and the second gear 25.

[0044] To achieve a compact design for the lifting and rotating assembly, the motor 21 is further mounted on the end of the base 1 via a mounting bracket, and installation space for the coupling mechanism, lifting mechanism and support mechanism is reserved in the middle of the base 1.

[0045] The first gear 23 is externally formed with a dust cover, which can cover and protect the teeth of the first gear 23 to prevent dust and dirt from entering and causing wear on the teeth and damage to the transmission parts.

[0046] To prevent the torsion beam 42 from tilting and jamming due to the asynchrony of the first gear 23 and the second gear 25, the first gear 23 and the second gear 25 are further controlled by the coordinated drive of the motor 21 and the reducer 22 to rotate synchronously. A protruding tie rod shaft is provided on one side of the axis of both gears to connect the directional tie rod 41 and drive the directional tie rod 41 to swing in an arc.

[0047] The motor 21 and the reducer 22 work together to directly drive the first gear 23 to adjust the position of the directional tie rod 41 on one side through the tie rod shaft to provide unilateral tension.

[0048] When the motor 21 and the reducer 22 work together to drive the first gear 23 to rotate, the transmission shaft 24 drives the second gear 25 to rotate, and the pull rod shaft drives the adjustment rod 41 on the other side to adjust its position to provide the other side with tension.

[0049] The synchronous transmission design on both sides ensures that the lifting height of both sides of the torsion beam 42 is consistent, preventing the support mechanism above the torsion beam 42 from tilting and avoiding uneven loading when under load.

[0050] In one embodiment, the first linkage of the first movable part 43 is a double linkage with a movable shaft at the top, middle and bottom. The upper part of the first linkage is connected to the torsion beam 42 through the movable shaft, the middle part of the first linkage is closed or lifted through the movable shaft, and the lower part of the first linkage is connected to the bearing on the base 1 through the movable shaft.

[0051] When the tie rod 41 drives the torsion beam 42 to move upward, the upper, middle and lower three sets of movable shafts of the first linkage group are all moved and unfolded until the first linkage group switches from the folded state to the vertical unfolded state, converting the lifting force into a vertical load, so that the linkage is vertically stressed under the lifting action. At this time, the motor 21 and the reducer 22 are not affected by the downward pressure impact of the heavy load above.

[0052] In one embodiment, the second linkage group of the second movable part 44 is a double linkage, both linkages are connected to the directional tie rod 41 and the torsion beam 42 through a pivot shaft, one end of the linkage is sleeved on the outer periphery of the shaft 33, and the other end of the other linkage is connected to the bearing seat on the base 1 through a pivot shaft.

[0053] The second linkage group moves through the multi-axis cooperation of shaft 33 and movable shaft, and the lifting path is controlled by multi-axis cooperative constraint. The power for the movement between the second movable part 44 and the torsion beam 42 comes from the directional tie rod 41.

[0054] To provide stable support for the support 53, four sets of first support 51 are symmetrically installed in pairs on the movable shafts that cooperate with the two first movable parts 43. Six sets of second support 52 are symmetrically installed in three groups on the shafts 33 that cooperate with the bracket 31 and the torsion beam 42. The first support 51 is set at the first movable part 43 and the second support 552 is set at the shaft 33. By distributing the support at multiple points, the load-bearing capacity is optimized during the load-bearing process, preventing excessive local gravity from causing imbalance of the support mechanism and affecting the stability of the support.

[0055] like Figure 6-7 As shown, the base 1 has a notch at its end for mounting a rotary motor 61. The rotary motor 61 is fixedly mounted on the support 53, and its output shaft passes through one end of the second support 52 and is connected to the drive gear 62.

[0056] The rotary motor 61 is hidden in the notch of the base 1 and is fixed by the support 53. When the rotary motor 61 is working, it drives the output shaft to rotate and drives the drive gear 62 to rotate, which meshes with the rotary gear 63 to realize the rotation function on the upper part of the assembly. The drive part of the rotation mechanism adopts a hidden design and is always in the initial position when the lifting action is performed, which solves the space occupation problem and realizes the compact design of the lifting and rotating assembly.

[0057] It is understandable that when the support 53 is raised or lowered, the drive gear 62 and the rotating gear 63 are always in a meshing transmission state. When the raising or lowering occurs, the drive gear 62 and the rotating gear 63 are directly set above the support 53 and can always remain parallel to the base 1. The teeth of the two are always meshed to ensure that the rotation function can be used at any raising or lowering height.

[0058] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of the invention and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of the invention should be included within the protection scope of the invention. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A tie-rod type torsion beam lifting and rotating assembly, characterized in that, The drive mechanism includes a motor (21) mounted on a base (1), a reducer (22) is mounted on the output end of the motor (21), and a first gear (23) is connected to the output end of the reducer (22). The first gear (23) and a second gear (25) on one side are driven by a transmission shaft (24). The drive shaft (24) passes through the through holes of the two drive shaft brackets (26), and the two drive shaft brackets (26) are symmetrically installed on the upper part of the base (1); The coupling mechanism includes a bracket (31) symmetrically mounted on the base (1), a movable coupling rod (32) is mounted on the bracket (31), and a holding rod (33) is clamped between the other ends of the two coupling rods (32). The lifting mechanism includes a directional tie rod (41) that moves synchronously with the first gear (23) and the second gear (25). The two directional tie rods (41) are connected to a torsion beam (42) via a pivot shaft. The torsion beam (42) has a first movable part (43) at one end facing the base (1) and a second movable part (44) at one end near the shaft (33). The first gear (23) and the second gear (25) are controlled by the motor (21) and the reducer (22) to rotate synchronously. The first gear (23) and the second gear (25) have a protruding tie rod shaft on one side of their shafts for connecting the directional tie rod (41). The first linkage of the first active part (43) is a double linkage, with a live shaft provided at the upper, middle and lower parts. The upper part of the first linkage is connected to the torsion beam (42) through the live shaft, the middle part of the first linkage is closed or lifted through the live shaft, and the lower part of the first linkage is connected to the bearing on the base (1) through the live shaft. The second linkage of the second movable part (44) is a double linkage. One linkage is connected to the directional tie rod (41) through a pivot shaft, and the end of the linkage is sleeved on the outer periphery of the shaft (33). The other linkage is connected to the torsion beam (42) through a pivot shaft, and the other end of the linkage is connected to the bearing seat on the base (1) through a pivot shaft. The support mechanism includes a first support (51) and a second support (52) disposed on one side of the first movable part (43) and the second movable part (44), and a support (53) is installed on the upper part of the first support (51) and the second support (52). The rotating mechanism includes a rotary motor (61) disposed on one side of the support (53), and a drive gear (62) is installed at the output end of the rotary motor (61). The drive gear (62) meshes with the rotary gear (63) disposed in the middle of the support (53) for transmission.

2. The tie-rod type torsion beam lifting and rotating assembly according to claim 1, characterized in that, The motor (21) is mounted on the end of the base (1) via a mounting bracket, and the first gear (23) is covered with a dust cover.

3. The tie-rod type torsion beam lifting and rotating assembly according to claim 1, characterized in that, When the directional tie rod (41) moves, the first support (51) and the second support (52) rise or fall synchronously with the cooperation of the torsion beam (42), the first movable part (43) and the second movable part (44), and the maximum height of the rise is the height of the first movable part (43) and the second movable part (44) when they are unfolded vertically.

4. The tie-rod type torsion beam lifting and rotating assembly according to claim 1, characterized in that, The first support (51) is provided in four sets, and is symmetrically installed in pairs on the movable shafts that cooperate with the two first movable parts (43). The second support (52) is provided in six sets, and is symmetrically installed in threes on the shaft (33) that cooperates with the bracket (31) and the torsion beam (42).

5. The tie-rod type torsion beam lifting and rotating assembly according to claim 1, characterized in that, The base (1) has a notch at one end for mounting the rotary motor (61). The rotary motor (61) is fixedly mounted on the support (53), and its output shaft passes through one end of the second support (52) and is connected to the drive gear (62).

6. The tie-rod type torsion beam lifting and rotating assembly according to claim 1, characterized in that, When the support (53) is raised or lowered, the drive gear (62) and the rotating gear (63) are always in a meshing transmission state.

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