Side door opening actuator

Abstract

The utility model discloses a side door opening actuator which comprises a shell, a driving assembly, a first transmission assembly and a second transmission assembly, wherein the driving assembly, the first transmission assembly and the second transmission assembly are all arranged in the shell. The first transmission assembly comprises an input worm, an input bevel gear, an output worm and an output bevel gear, the input worm is connected with the output shaft of the driving assembly, the output worm and the input worm are distributed at intervals and form a certain included angle, the input bevel gear is arranged on the output worm in a sleeving mode and is in meshing transmission with the input worm, and the output worm is in meshing transmission with the output bevel gear; the second transmission assembly comprises a lead screw, a sliding base and a connecting rod, the end of the lead screw is inserted into an inner hole of the output bevel gear, the lead screw is sleeved with the sliding base and is in threaded connection with the sliding base, one end of the connecting rod is fixed into the sliding base, and the other end of the connecting rod extends out of the shell to be connected with the side door. The first transmission assembly is high in transmission ratio and capable of saving space, so that the structure is small, light, time-saving and efficient.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission, and more specifically to a side-opening door actuator. Background Art

[0002] The side door of a car is usually equipped with a side door actuator. The existing side door actuator is composed of a connecting rod, a motor and a first transmission assembly, and the first transmission assembly often adopts a primary worm helical gear structure to realize the power transmission between the motor and the connecting rod, so as to drive the connecting rod to push or pull the side door of the car. However, in the above structure, the transmission ratio of the primary worm helical gear is small. In order to ensure a sufficiently large transmission ratio, the number of teeth of the helical gear is often increased, resulting in a large space occupied by the worm helical gear, which makes the overall side door actuator larger in size.

[0003] In summary, how to provide a side door actuator having a first transmission component with a high transmission ratio and space saving is a problem that needs to be urgently solved by technical personnel in this field. Utility Model Content

[0004] In view of this, an object of the utility model is to provide a side-opening door actuator having a first transmission assembly with a high transmission ratio and space saving, so that the structure is compact, light, time-saving and efficient.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A side door actuator comprises a housing, a driving assembly, a first transmission assembly and a second transmission assembly, all of which are arranged in the housing;

[0007] The first transmission assembly comprises an input worm, an input bevel gear, an output worm and an output bevel gear, wherein the input worm is connected to the output shaft of the driving assembly, the output worm is spaced apart from the input worm, both are arranged horizontally and form a certain angle, the input bevel gear is sleeved on the output worm and meshes with the input worm for transmission, and the output worm is meshed with the output bevel gear for transmission;

[0008] The second transmission assembly includes a screw rod, a slide seat and a connecting rod. The end of the screw rod is inserted into the inner hole of the output bevel gear. The slide seat is sleeved on the screw rod and threadedly connected to the screw rod. One end of the connecting rod is fixed in the slide seat and the other end extends out of the shell for connecting to the side door.

[0009] Preferably, a buffer assembly is connected between the output shaft of the driving assembly and the input worm.

[0010] Preferably, the buffer assembly includes a buffer, an inner sleeve and an outer sleeve; the buffer is provided with a slot, and the output sleeve of the drive assembly is provided with the inner sleeve and inserted into the slot; the buffer and the input worm are respectively nested in the two ends of the outer sleeve, with a certain distance between them.

[0011] Preferably, a concave-convex structure is provided in the outer sleeve and at one end on which the input worm is sleeved, a flat position is provided at the end of the input worm, and the concave-convex structure is limitedly matched with the flat position.

[0012] Preferably, the outer sleeve is rotatably disposed in the housing via a bearing.

[0013] Preferably, the end of the screw rod inserted into the inner hole of the output helical gear is provided with knurling.

[0014] Preferably, the connecting rod is detachably connected to the sliding seat.

[0015] Preferably, the output shaft of the driving assembly is coaxially arranged with the input worm, and the input worm and the output worm are perpendicular to each other.

[0016] Preferably, the connecting rod and the screw rod are arranged parallel to each other.

[0017] Preferably, the housing is a detachable structure, which is split into an L-shaped first housing and an I-shaped second housing, the first housing is used to install the drive assembly and the first transmission assembly, and the second housing is used to install the second transmission assembly;

[0018] A detachable bottom cover is provided at the bottom end of the lower part of the first shell, a detachable first side cover is provided on one side of the upper part of the first shell, and the other side is detachably connected to the end of the second shell through the second side cover;

[0019] The first side cover and the second side cover are symmetrically provided with connecting rod through-holes, and the second side cover is provided with a screw rod through-hole, and both are communicated with the interior of the first shell and the second shell.

[0020] Compared with the above background technology, when the side door actuator provided by the present invention is applied to the opening and closing of the side door of the automobile, the driving assembly is started, the driving assembly drives the input worm to rotate, the input worm drives the input bevel gear to rotate, the input bevel gear rotates and drives the output worm to rotate, the output worm rotates and drives the output bevel gear to rotate, the output bevel gear drives the lead screw to rotate, the lead screw drives the slide to move along its axial direction to drive the connecting rod to push or pull the side door of the automobile, that is, to realize the opening and closing of the side door of the automobile. Among them, the first transmission assembly adopts a high transmission ratio two-stage worm helical gear transmission structure, the input worm and the output worm are spaced and arranged at a certain angle, so that the two-stage worm helical gear transmission structure is compactly arranged, even under the same high transmission ratio, the two-stage worm helical gear transmission structure is still more compact than the one-stage worm helical gear transmission structure, so as to save more space for the first transmission assembly, so that the present application has a high transmission ratio and space-saving first transmission assembly, so that the overall structure is compact and light, and time-saving and efficient, thereby improving the opening and closing efficiency of the side door of the automobile. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 A schematic diagram of the housing structure of a side-opening door actuator provided in this application;

[0023] Figure 2 A schematic diagram of the internal structure of a housing of a side-opening door actuator provided in this application;

[0024] Figure 3 An assembly diagram of the drive assembly and input worm provided for this application;

[0025] Figure 4 for Figure 3 Section view at AA;

[0026] Figure 5 A schematic diagram of the structure of the buffer provided in this application;

[0027] Figure 6 A schematic diagram of the structure of the outer sleeve provided in this application;

[0028] Figure 7 A schematic diagram of the structure of the input worm provided in this application;

[0029] Figure 8 A schematic diagram of the structure of the second transmission assembly provided in this application;

[0030] Fig. 9 This is a schematic diagram of the first shell and the second shell provided in the present application in which the connecting rod and the lead screw are inserted.

[0031] Figure 1-9 middle:

[0032] 1 is the housing, 2 is the driving assembly, 3 is the first transmission assembly, 4 is the second transmission assembly, 5 is the buffer assembly, and 6 is the side door;

[0033] 11 is a first housing, 12 is a second housing, 111 is a bottom cover, 112 is a first side cover, 113 is a second side cover, 114 is a connecting rod opening, and 115 is a screw rod opening;

[0034] 31 is the input worm, 32 is the input helical gear, 33 is the output worm, 34 is the output helical gear, and 311 is the flat position;

[0035] 41 is a screw rod, 42 is a slide seat, 43 is a connecting rod, and 411 is a knurling;

[0036] 51 is a buffer, 52 is an inner sleeve, 53 is an outer sleeve, 511 is a slot, and 531 is a concave-convex structure. DETAILED DESCRIPTION

[0037] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0038] The core of the utility model is to provide a side-opening door actuator, which has a first transmission component with a high transmission ratio and space saving, so that the structure is compact, light, time-saving and efficient.

[0039] It should be noted that, in the present embodiment, the directions or positional relationships indicated by “upper”, “lower”, “front”, “back”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0040] Please refer to Figure 1 and Figure 2 The present application provides a side door actuator, including a housing 1, a driving assembly 2, a first transmission assembly 3 and a second transmission assembly 4, all of which are arranged in the housing 1.

[0041] The first transmission assembly 3 includes an input worm 31, an input bevel gear 32, an output worm 33 and an output bevel gear 34. The input worm 31 is connected to the output shaft of the driving assembly 2. The output worm 33 is spaced apart from the input worm 31 and forms a certain angle with the input bevel gear 32. The input bevel gear 32 is sleeved on the output worm 33 and meshes with the input worm 31 for transmission. The output worm 33 meshes with the output bevel gear 34 for transmission.

[0042] The second transmission assembly 4 includes a screw rod 41, a slide 42 and a connecting rod 43. The end of the screw rod 41 is inserted into the inner hole of the output bevel gear 34. The slide 42 is sleeved on the screw rod 41 and threadedly connected thereto. One end of the connecting rod 43 is fixed in the slide 42 and the other end is used to connect to the side door 6.

[0043] Specifically, the drive assembly 2, the first transmission assembly 3 and the second transmission assembly 4 are all placed in the housing 1, and the housing 1 plays the role of fixing and protecting each assembly. Among them, the drive assembly 2 is installed in the housing 1, and is used to drive the first transmission assembly 3 to transmit. It can adopt a motor, a hydraulic cylinder, a cylinder and other structures, which are not unique; the first transmission assembly 3 is a two-stage worm helical gear transmission structure formed by the input worm 31, the input bevel gear 32, the output worm 33 and the output bevel gear 34, which are mutually transmitted and matched to form a two-stage worm helical gear transmission structure, which is used to transmit the power of the drive assembly 2 to the second transmission assembly 4. The input worm 31 and the output worm 33 are both fixed in the housing 1 through bearings. The output worm 33 is located above the input worm 31, and the output worm 33 is inclined at a certain angle relative to the input worm 31, that is, the front end of the output worm 33 is at a certain angle with the input worm 31, and the input bevel gear 32 is sleeved on the front end of the output worm 33 and meshes with the input worm 31 for transmission, and the output The end of the input worm 31 is connected to the output shaft of the driving assembly 2, and the rear end of the output worm 33 is meshed with the output bevel gear 34 for transmission; the second transmission assembly 4 is composed of a screw 41, a slide 42 and a connecting rod 43. The front end of the screw 41 is rotatably fixed in the housing 1 through a bearing and is located above the output worm 33. The output bevel gear 34 is sleeved on the front end of the screw 41 to drive the screw 41 to rotate, and a threaded hole is provided at the bottom of the slide 42, and a socket is provided at the top of the slide 42. One end of the connecting rod 43 passes through the housing 1 and is inserted in the socket, and the other end is connected to the car side door 6. The screw 41 is inserted into the threaded hole of the slide 42. The screw 41 converts rotational motion into linear motion, drives the slide 42 to move axially along the screw 41, and then drives the connecting rod 43 to move, so as to pull or push the car side door 6.

[0044] When the side door actuator with the above-mentioned structure is used to open and close the side door 6 of the automobile, the driving component 2 is started, and the driving component 2 drives the input worm 31 to rotate, the input worm 31 drives the input bevel gear 32 to rotate, the input bevel gear 32 rotates and drives the output worm 33 to rotate, the output worm 33 rotates and drives the output bevel gear 34 to rotate, the output bevel gear 34 drives the screw rod 41 to rotate, the screw rod 41 drives the slide 42 to move along its axial direction, so as to drive the connecting rod 43 to push or pull the side door 6 of the automobile, thereby realizing the opening and closing of the side door 6 of the automobile. Among them, the first transmission component 3 adopts a two-stage worm bevel gear transmission structure with a high transmission ratio, and its input worm 31 and the output worm 33 are spaced and arranged at a certain angle, so that the two-stage worm bevel gear transmission structure is compactly arranged. Even under the same high transmission ratio, the two-stage worm bevel gear transmission structure is still more compact than the one-stage worm bevel gear transmission structure, so as to save more space for the first transmission component 3. Therefore, the present application has a first transmission component 3 with a high transmission ratio and space saving, so that the overall structure is compact and light, and it is time-saving and efficient, thereby improving the opening and closing efficiency of the side door of the car.

[0045] It should be noted that the input worm 31 is directly connected to the output shaft of the driving assembly 2, which will generate large meshing noise due to the radial runout of the output shaft of the driving assembly 2 and will also reduce the service life of the worm helical gear transmission structure.

[0046] To avoid the above problems, please refer to Figure 3 A buffer component 5 is connected between the output shaft of the driving component 2 and the input worm 31, and the buffer component 5 is made of rubber material. The buffer component 5 plays a role in noise reduction, so as to reduce the noise generated by the radial runout of the output shaft of the driving component 2 and prolong the service life.

[0047] Considering the specific structure of the buffer assembly 5, based on the above embodiment, please refer to Figures 4 to 7 The buffer assembly 5 includes a buffer 51, an inner sleeve 52 and an outer sleeve 53; the buffer 51 is provided with a slot 511, and the output sleeve of the driving assembly 2 is provided with an inner sleeve 52 and inserted into the slot 511; the buffer 51 and the input worm 31 are respectively nested in the two ends of the outer sleeve 53, leaving a certain distance between the two.

[0048] Specifically, a through hole is provided in the buffer 51, and an abutment protrusion is provided in the through hole and along its radial direction to form a slot 511. The output shaft of the drive component 2 is inserted into the through hole and abuts against the abutment protrusion, and an inner sleeve 52 is provided between the output shaft of the drive component 2 and the inner wall of the through hole. The inner sleeve 52 and the abutment protrusion both play an axial limiting role to prevent the output shaft of the drive component 2 from producing a large axial displacement. The buffer 51 is sleeved inside the front end of the outer sleeve 53, and the input worm 31 is sleeved inside the rear end of the outer sleeve 53, and a certain distance is left between the buffer 51 and the input worm 31 to avoid direct contact between the buffer 51 and the input worm 31, thereby better isolating the output shaft of the drive component 2 and the input worm 31 from vibration transmission, and greatly reducing the noise generated by the radial runout of the output shaft of the drive component 2.

[0049] Based on the above examples, please refer to Figure 6 and Figure 7 A concave-convex structure 531 is provided at one end of the outer sleeve 53 on which the input worm 31 is sleeved, and a flat position 311 is provided at the end of the input worm 31. The concave-convex structure 531 and the flat position 311 are limitedly cooperated to prevent the input worm 31 from rotating relative to the outer sleeve 53, ensuring that the input worm 31 is fixedly connected to the outer sleeve 53, thereby ensuring the smoothness of power transmission between the drive assembly 2 and the input worm 31.

[0050] Optionally, a bearing is provided on the outer periphery of the outer sleeve 53 , and the bearing is fixed in the housing 1 to increase the structural stability of the outer sleeve 53 , thereby improving the stability of power transmission between the drive assembly 2 and the input worm 31 .

[0051] Based on the above examples, please refer to Figure 8 The end of the screw rod 41 inserted into the inner hole of the output helical gear is provided with a knurl 411. Specifically, the front end of the screw rod 41 is provided with a knurl 411, and the knurl 411 is in friction contact with the inner hole wall of the output helical gear 34 to increase the friction between the two, prevent the screw rod 41 and the output helical gear from rotating, and make the two firmly connected, thereby ensuring the stability of power transmission between the screw rod 41 and the output helical gear.

[0052] Preferably, the number of knurls 411 is multiple, and the multiple knurls 411 are evenly spaced along the axial direction of the screw rod 41 to further increase the friction between the knurls 411 and the output bevel gear 34 .

[0053] On the basis of the above embodiment, the connecting rod 43 is detachably connected to the slide seat 42. Specifically, one end of the connecting rod 43 is inserted into the top plug hole of the slide seat 42, and a screw hole is provided on the slide seat 42 at a position corresponding to the top plug hole. The connecting rod 43 is fixedly connected to the slide seat 42 by screws, so as to ensure that the connecting rod 43 is firmly connected and realize the detachable connection between the connecting rod 43 and the slide seat 42, so as to facilitate the disassembly and assembly of the connecting rod 43, and then facilitate the adjustment of the length of the connecting rod 43 according to the distance from the vehicle side door 6, thereby improving the adaptability of the present application.

[0054] On the basis of the above embodiment, the output shaft of the driving assembly 2 is coaxially arranged with the input worm 31, and the input worm 31 and the output worm 33 are perpendicular to each other, so that the axes of the input worm 31 and the input bevel gear 32 disposed on the output worm 33 can be perpendicular, ensuring that the input worm 31 and the input bevel gear 32 are transmitted vertically, thereby saving space while ensuring power transmission efficiency.

[0055] On the basis of the above embodiment, the connecting rod 43 and the screw rod 41 are arranged parallel to each other. Specifically, one end of the connecting rod 43 is located in the housing 1 and is fixedly connected to the slide 42, and the other end of the connecting rod 43 extends out of the housing 1 and is connected to the vehicle side door 6. The screw rod 41 rotates to drive the slide 42 to move along its axial direction. The connecting rod 43 is parallel to the axis of the screw rod 41, which is conducive to the slide 42 transmitting thrust or pulling force to the vehicle side door 6 through the connecting rod 43, avoiding force deviation, so as to ensure the opening and closing of the vehicle side door 6.

[0056] Based on the above examples, please refer to Figure 1 and Fig. 9 The shell 1 is a detachable structure, which can be split into an L-shaped first shell 11 and an I-shaped second shell 12. The first shell 11 is used to install the drive assembly 2 and the first transmission assembly 3, and the second shell 12 is used to install the second transmission assembly 4.

[0057] Specifically, a removable bottom cover 111 is provided at the bottom end of the lower part of the first housing 11, and the driving assembly 2 and the input worm 31 in the first transmission assembly 3 are installed on the bottom cover 111 in sequence. The output worm 33 in the first transmission assembly 3 and the input bevel gear 32 sleeved thereon are installed at the intersection of the upper and lower parts of the first housing 11. The upper sides of the first housing 11 are respectively provided with a removable first side cover 112 and a second side cover 113. One end of the second housing 12 is open, and the second side cover 113 is connected to the second housing 12 by bolts. The open ends of the second housing 12 are vertically connected, and a screw hole 115 is provided on the second side cover 113. The screw 41 in the second housing 12 is rotatably connected to the first side cover 112 through the screw hole 115, and an output helical gear 34 is sleeved on the screw 41 inserted into the first housing 11, which is meshed with the output worm 33 for transmission. In addition, the second side cover 113 and the first side cover 112 are symmetrically provided with connecting rod holes 114, so that the connecting rod 43 is connected between the slide seat 42 and the automobile side door 6 through two connecting rod holes 114 in sequence. The housing 1 with the above-mentioned structure is simple in structure, which not only ensures that the internal components are compact and saves space, but also facilitates the disassembly and assembly of the internal components.

[0058] It should be noted that, in this specification, relational terms such as first and second are merely used to distinguish one entity from other entities, but do not necessarily require or imply any actual relationship or order between these entities.

[0059] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0060] The above is a detailed introduction to the side door actuator provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A side door actuator, characterized in that: It comprises a housing (1), a driving assembly (2), a first transmission assembly (3) and a second transmission assembly (4) all arranged in the housing (1); The first transmission assembly (3) comprises an input worm (31), an input bevel gear (32), an output worm (33) and an output bevel gear (34); the input worm (31) is connected to the output shaft of the driving assembly (2); the output worm (33) and the input worm (31) are spaced apart and form a certain angle; the input bevel gear (32) is sleeved on the output worm (33) and meshes with the input worm (31) for transmission; the output worm (33) meshes with the output bevel gear (34) for transmission; The second transmission assembly (4) comprises a screw rod (41), a slide seat (42) and a connecting rod (43); the end of the screw rod (41) is inserted into the inner hole of the output bevel gear (34); the slide seat (42) is sleeved on the screw rod (41) and threadedly connected thereto; one end of the connecting rod (43) is fixed in the slide seat (42) and the other end extends out of the housing (1) for connecting to the side door (6).

2. The side door actuator according to claim 1, characterized in that: A buffer assembly (5) is connected between the output shaft of the drive assembly (2) and the input worm (31).

3. The side door actuator according to claim 2, characterized in that: The buffer component (5) comprises a buffer member (51), an inner shaft sleeve (52) and an outer shaft sleeve (53); the buffer member (51) is provided with a slot (511), and the output shaft sleeve of the driving component (2) is provided with the inner shaft sleeve (52) and inserted into the slot (511); the buffer member (51) and the input worm gear (31) are respectively nested in two ends of the outer shaft sleeve (53), with a certain distance between the two.

4. The side door actuator according to claim 3, characterized in that: A concave-convex structure (531) is provided in one end of the outer sleeve (53) and sleeved with the input worm (31), a flat portion (311) is provided at the end of the input worm (31), and the concave-convex structure (531) is limitedly matched with the flat portion (311).

5. The side door actuator according to claim 3, characterized in that: The outer shaft sleeve (53) is rotatably arranged in the housing (1) via a bearing.

6. The side door actuator according to claim 1, characterized in that: The end of the screw rod (41) inserted into the inner hole of the output helical gear is provided with a knurling (411).

7. The side door actuator according to claim 1, characterized in that: The connecting rod (43) is detachably connected to the sliding seat (42).

8. The side door actuator according to any one of claims 1 to 7, characterized in that: The output shaft of the driving assembly (2) is coaxially arranged with the input worm (31), and the input worm (31) and the output worm (33) are perpendicular to each other.

9. The side door actuator according to claim 8, characterized in that: The connecting rod (43) and the screw rod (41) are arranged parallel to each other.

10. The side door actuator according to claim 9, characterized in that: The housing (1) is a detachable structure, which is detachable into an L-shaped first housing (11) and an I-shaped second housing (12); the first housing (11) is used to install the drive assembly (2) and the first transmission assembly (3), and the second housing (12) is used to install the second transmission assembly (4); A detachable bottom cover (111) is provided at the bottom end of the lower part of the first shell (11); a detachable first side cover (112) is provided on one side of the upper part of the first shell (11); and the other side is detachably connected to the end of the second shell (12) via a second side cover (113); The first side cover (112) and the second side cover (113) are symmetrically provided with connecting rod openings (114), and the second side cover (113) is provided with a screw rod opening (115), and both are connected to the interior of the first shell (11) and the second shell (12).

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