A hinge driving device

Abstract

This invention discloses a hinge body driving device, belonging to the technical field of mechanical equipment. The driving device includes a driving unit and a guide rail assembly, and further includes an output shaft, a slider shaft, a connecting rod, and a joint assembly. The output shaft transmits torque to the slider shaft through the connecting rod, and the output shaft and / or slider shaft are detachably mounted on the connecting rod. The output shaft is connected to the driving unit for transmission. The slider shaft is mounted in the joint assembly, and the joint assembly realizes the translational movement of the slider shaft in the Z direction and the axial rotational movement around the X, Y, and Z directions. The joint assembly is mounted on the guide rail assembly and realizes the translational movement of the slider shaft in the X and Y directions through the guide rail assembly. This achieves the goal of long-term stable operation by optimizing the design of the connecting rod and improving the fault tolerance of the six degrees of freedom.

Description

Technical Field

[0001] The present invention belongs to the technical field of mechanical equipment, and in particular, relates to a hinge body driving device. Background Art

[0002] In space, two objects move relative to each other around a hinge, for example, in the casement doors or casement windows that we see in daily life; if the relative movement of the two objects is to be controlled automatically, a corresponding driving device needs to be applied. In the prior art, the driving device is mainly composed of three parts: a driving part, a connecting rod and a guide rail assembly. However, the driving device of the prior art has the following main defects in practical applications:

[0003] (1) The processing difficulty of the connecting rod is relatively high, resulting in high manufacturing costs. At the same time, the existing connecting rod is difficult to install and is prone to deformation;

[0004] (2) Due to processing and installation errors, the directions of the two relative movements are not parallel, and the existing drive device has poor fault tolerance in the six degrees of freedom (including translation in three orthogonal directions and rotation around the axis corresponding to the three orthogonal directions), which cannot ensure the long-term stable operation of the device. Summary of the invention

[0005] In view of this, in order to solve the above-mentioned problems existing in the prior art, the purpose of the present invention is to provide a hinge body driving device to achieve the purpose of long-term stable operation by optimizing the design of the connecting rod and improving the fault tolerance of six degrees of freedom.

[0006] The technical solution adopted by the present invention is: a hinge body driving device, the driving device includes a driving part and a guide rail assembly, and also includes an output shaft, a slider shaft, a connecting rod and a joint assembly, the output shaft transmits torque to the slider shaft through the connecting rod, and the output shaft and / or the slider shaft can be detachably assembled on the connecting rod;

[0007] The output shaft is transmission-connected with the driving part, the slider shaft is assembled in the joint assembly, and the translational motion of the slider shaft in the Z direction and the axial rotational motion around the X direction, Y direction and Z direction are realized through the joint assembly; the joint assembly is mounted on the guide rail assembly, and the translational motion of the slider shaft in the X direction and Y direction is realized through the guide rail assembly.

[0008] Furthermore, the output shaft and / or the slider shaft are assembled on the connecting rod through a locking assembly and fixed and locked by screws, so as to achieve stable and reliable transmission of torque between the output shaft and the slider shaft through the connecting rod.

[0009] Furthermore, the locking assembly includes a locking male head arranged at the end of the connecting rod, and a locking female head is provided on the output shaft and / or the slider shaft. The locking male head and the locking female head are provided with a matching structure to prevent relative rotation. The design of the matching structure is conducive to reducing the assembly difficulty and processing difficulty of the connecting rod, and can reduce the processing cost.

[0010] Furthermore, the locking male head is configured to be rectangular, triangular, polygonal or tooth-shaped, and the two ends of the connecting rod are configured to be the same locking male head or any two different locking male heads to meet different design requirements.

[0011] Furthermore, the joint assembly includes a slider accessory installed on the guide rail assembly, the slider accessory is equipped with an axial limit ring and a spherical bearing, and the spherical bearing is limited in the Z direction by the axial limit ring; the inner ring of the spherical bearing is movably sleeved with the slider shaft along the Z direction and a retaining spring is provided at the end of the slider shaft to enable the slider shaft to make a translational motion in the Z direction and the slider shaft to make an axial rotation around the X direction, Y direction and Z direction under the action of the spherical bearing.

[0012] Furthermore, the joint assembly includes a slider accessory installed on the guide rail assembly, a joint bearing is movably sleeved in the slider accessory along the Z direction, the inner ring of the joint bearing is fixedly sleeved with the slider shaft and a retaining spring is provided at the end of the slider shaft, so as to enable the slider shaft to make a translational motion in the Z direction and the slider shaft to make an axial rotation around the X direction, Y direction and Z direction under the action of the joint bearing.

[0013] Furthermore, the guide rail assembly includes a guide rail mounting shell and a linear guide rail mounted in the guide rail mounting shell, and a linear guide rail slider is slidably mounted on the linear guide rail, and the linear guide rail slider performs translational motion in the X and Y directions of the linear guide rail to ultimately achieve translational motion in the X and Y directions.

[0014] Furthermore, the linear guide slider is provided with a slide groove, which is nested on the linear guide. This method is stable and reliable during the movement.

[0015] Furthermore, a stepped hole is provided in the slider accessory, in which the axial limit ring and the spherical bearing are assembled, and one end of the axial limit ring abuts against the linear guide slider, and the other end abuts against the spherical bearing, so as to realize the installation limitation of the spherical bearing through the axial limit ring.

[0016] Furthermore, an assembly hole is provided in the slider accessory, the assembly hole matches the outer ring of the spherical bearing and the spherical bearing slides freely in the assembly hole along the Z direction to satisfy the translational motion of the spherical bearing in the Z direction.

[0017] The beneficial effects of the present invention are:

[0018] 1. The hinge driving device provided by the present invention optimizes the design of the assembly method between the connecting rod, the output shaft and the slider shaft, and adopts a detachable assembly combined with a locking component, which can reduce the processing difficulty of the connecting rod and save manufacturing costs; at the same time, the slider shaft is installed on the guide rail assembly through a joint component. Under the action of the joint component and the guide rail assembly, the slider shaft can have sufficient fault tolerance in the six degrees of freedom directions, thereby improving the stability and reliability of the entire driving device during movement. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the hinge driving device provided by the present invention;

[0020] Figure 2 is a schematic diagram of the disassembled structure of the hinge driving device provided by the present invention in Example 1;

[0021] Figure 3 yes Figure 2 A partial cross-sectional schematic diagram of

[0022] Figure 4 is a schematic diagram of the disassembled structure of the hinge driving device provided by the present invention in Example 2;

[0023] Figure 5 yes Figure 4 A partial cross-sectional schematic diagram of

[0024] Figure 6 This is a schematic diagram of the first structure of the connecting rod in the hinge driving device provided by the present invention;

[0025] Figure 7 This is a second structural schematic diagram of a connecting rod in the hinge driving device provided by the present invention;

[0026] The following are marked in the attached figure:

[0027] 1-door body, 2-door frame, 3-driving part, 4-connecting rod, 5-guide rail mounting shell, 6-linear guide, 7-linear guide slider, 8-axial limit ring, 9-slider accessories, 10-spherical bearing, 11-slider shaft, 12-output shaft, 13-circlip, 14-locking male head, 15-locking female head. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0029] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] In the description of the embodiments of the present invention, it should be noted that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the invention product is usually placed when in use, or the orientation or positional relationship commonly understood by those skilled in the art, or the orientation or positional relationship in which the invention product is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances; the drawings in the embodiments are used to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations.

[0034] Example 1

[0035] like Figure 1 As shown, a hinge driving device is specifically provided. In this embodiment, a casement door is taken as an example. The casement door includes a door body and a door frame which are hingedly connected. Under the action of the driving device, the door body opens or closes relative to the door frame. Of course, it can also be applied to casement windows. The principle is similar to that of the casement door and will not be repeated here.

[0036] Due to problems such as processing and installation errors in the real environment, the relative movement direction between the door body and the door frame will not be parallel, and it is necessary to have fault tolerance in six degrees of freedom (translation in three orthogonal directions and rotation around the axis in three orthogonal directions) to ensure long-term stable operation. Therefore, the drive device is optimized as follows:

[0037] like Figure 2 As shown, a driving part and a guide rail assembly are respectively provided on the door body and the door frame, and the driving part mainly provides driving force through a motor and a gearbox. The driving device also includes an output shaft, a slider shaft, a connecting rod and a joint assembly. The output shaft transmits torque to the slider shaft through the connecting rod, and the output shaft and / or the slider shaft can be detachably assembled on the connecting rod, which can be divided into the following three situations: the output shaft can be detachably assembled on the connecting rod and the slider shaft is integrally formed on the connecting rod, the output shaft is integrally formed on the connecting rod and the slider shaft can be detachably assembled on the connecting rod, or both the output shaft and the slider shaft can be detachably assembled on the connecting rod; in this embodiment, in order to minimize the production cost of the connecting rod, the output shaft and the slider shaft can be detachably assembled on the connecting rod.

[0038] The output shaft is connected to the driving part through transmission, and the output shaft transmits torque to the slider shaft through the connecting rod. The slider shaft is assembled in the joint assembly, and the slider shaft realizes translational movement in the Z direction and axial rotational movement around the X direction, Y direction and Z direction through the joint assembly; the joint assembly is installed on the guide rail assembly, and the slider shaft realizes translational movement in the X direction and Y direction through the guide rail assembly, so as to finally realize translation in three degrees of freedom in the X direction, Y direction and Z direction, and axial rotation in three degrees of freedom around the X direction, Y direction and Z direction, so as to ensure sufficient fault tolerance in six degrees of freedom.

[0039] 1. Guide rail assembly

[0040] A guide rail mounting shell is embedded in the door frame. The guide rail assembly includes a linear guide rail mounted on the guide rail mounting shell. The linear guide rail is fixedly connected to the guide rail mounting shell by a plurality of guide rail fixing screws. A linear guide slider is slidably mounted on the linear guide rail. The linear guide slider performs translational motion in the X and Y directions of the linear guide rail. A slide groove is provided on the linear guide slider. The slide groove is nested on the linear guide rail. The linear guide slider is suspended and mounted on the linear guide rail. It can slide freely but will not fall off. An assembly gap is left between the slide groove and the linear guide rail to enable the linear guide slider to perform translational motion in the X and Y directions of the linear guide rail.

[0041] 2. Joint component part

[0042] like Figure 3As shown, the joint assembly includes a slider accessory mounted on the linear guide slider, the slider accessory is fixedly connected to the linear guide slider by a number of slider accessory mounting screws, the slider accessory is equipped with an axial limit ring and a joint bearing, and the joint bearing is limited in the Z direction by the axial limit ring, so that it is firmly installed in the slider accessory, specifically: a stepped hole is opened in the slider accessory, the stepped hole is divided into a coaxially arranged large hole, a small hole and an inner edge arranged at the end of the small hole, the large hole and the small hole of the stepped hole are respectively equipped with the axial limit ring and the joint bearing, one end face of the joint bearing is just flush with the shaft shoulder and is pressed against it by the axial limit ring, and the other end face is pressed against the inner edge. When the slider accessory is installed, one end of the axial limit ring presses against the linear guide slider, and the other end presses against the joint bearing, then the axial limiter and the joint bearing are also firmly installed.

[0043] The slider shaft is provided with a movable sleeve along the Z direction on the inner ring of the joint bearing and a retaining spring is provided at the end of the slider shaft, which has the following two functions: when the driving device is in working state, the slider shaft slides freely in the Z direction in the inner ring of the joint bearing, and can provide translational motion of the Z degree of freedom. At the same time, during the translation process, the movement of the slider shaft is limited by the retaining spring; on the other hand, since the end of the connecting rod and the slider shaft are prevented from rotating by a locking assembly, during the installation process, the slider shaft can be first lifted along the Z direction (upward) for a distance (more than 2.5 mm), and when the connecting rod is installed in place, the slider shaft can fall and be directly assembled with the connecting rod. During the process, the installation can be completed without deforming the connecting rod.

[0044] 3. Connecting rod part

[0045] In order to ensure that the output shaft can stably and reliably transmit the torque to the slider shaft when the driving part is in motion, and then the slider shaft drives the guide rail assembly to move through the joint assembly, the output shaft and the slider shaft are assembled on the connecting rod through the locking assembly and fixed and locked by screws.

[0046] The locking assembly includes a locking male head arranged at the end of the connecting rod, and a locking female head is arranged on the output shaft and the slider shaft. The locking male head matches the locking female head, and the locking male head and the locking female head have a matching structure to prevent relative rotation, so that when the locking male head and the locking female head are assembled with each other, the output shaft and the slider shaft will not rotate relative to the connecting rod.

[0047] The locking male head is configured in a rectangular, triangular, polygonal, or Figure 7 as shown) or tooth shape (as Figure 6As shown), correspondingly, the locking female head is set to a rectangular groove shape, a triangular groove shape, a polygonal groove shape or a tooth-shaped groove shape. During assembly, the locking male head is embedded in the corresponding locking female head to achieve the function of anti-rotation locking. At the same time, a through hole is provided in the locking male head, and a threaded hole is provided in the locking female head. After the locking male head and the locking female head are assembled, the locking male head and the locking female head are connected and locked by screws. In practical applications, the two ends of the connecting rod are set to the same locking male head or any two different locking male heads, and corresponding locking female heads are provided on the output shaft and the slider shaft, specifically: both ends of the connecting rod are tooth-shaped locking male heads, one end of the connecting rod is tooth-shaped and the other end is rectangular. The combination form can be adaptively designed according to actual needs, and will not be listed here one by one.

[0048] The hinge driving device provided in this embodiment has the following installation and working process:

[0049] First, install the drive unit and guide rail assembly on the door body and door frame respectively;

[0050] The output shaft is installed and locked on the driving part, and at the same time, one end of the connecting rod is connected and fastened to the output shaft through the matching structure of the locking assembly;

[0051] Install the joint assembly on the linear guide slider of the guide assembly, and then adjust the other end of the connecting rod to the corresponding position of the slider shaft in the joint assembly. First, lift the slider shaft along the Z direction (upward) for a distance (more than 2.5mm). After the connecting rod is adjusted into place, the slider shaft can fall and be directly assembled with the connecting rod. Finally, lock the slider shaft and the connecting rod.

[0052] This completes the assembly and locking of the slider shaft, the output shaft and the connecting rod, and then provides a driving force through the driving unit to achieve the rotational movement of the door body relative to the door frame.

[0053] Example 2

[0054] Compared with Example 1, in this embodiment, another structural design of the joint assembly is provided to achieve the same technical effect, and the specific design is as follows:

[0055] like Figure 4 , Figure 5As shown, the joint assembly includes a slider accessory mounted on the guide rail assembly, the slider accessory is locked on the linear guide slider by a plurality of slider accessory mounting screws, a joint bearing is provided in the slider accessory along the Z direction, and the inner ring of the joint bearing is fixedly provided with the slider shaft and a retaining spring is provided at the end of the slider shaft, under the action of the retaining spring, the slider shaft is clamped on the joint bearing to prevent relative movement between the slider shaft and the joint bearing. An assembly hole is provided in the slider accessory, and an inner edge is provided at one end of the assembly hole, the assembly hole matches the outer ring of the joint bearing and the joint bearing slides freely in the assembly hole along the Z direction. When the slider accessory is mounted on the linear guide slider, the joint bearing and the slider shaft mounted on the joint bearing can perform translational motion in the Z direction. At the same time, as described in Example 1, under the action of the linear guide slider and the joint bearing, the slider shaft can perform translational motion in the X direction and the Y direction, and perform axial rotational motion around the X direction, the Y direction and the Z direction, so as to finally achieve the ability to move in six degrees of freedom.

[0056] The joint assembly provided in this embodiment has slightly different internal structure and working principle, but it can also achieve movement in six degrees of freedom. During the installation process, the slider shaft can also be lifted upward for a certain distance to ensure that the slider shaft and the connecting rod are installed in coordination and the assembly connection can be achieved without deformation of the connecting rod.

[0057] The present invention is not limited to the above-mentioned optional implementation modes. Anyone can derive other various forms of products under the inspiration of the present invention. However, no matter what changes are made in the shape or structure, all technical solutions that fall within the scope defined by the claims of the present invention fall within the protection scope of the present invention.

Claims

1. A hinge driving device, characterized in that: The driving device includes a driving part and a guide rail assembly, and also includes an output shaft, a slider shaft, a connecting rod and a joint assembly. The output shaft transmits torque to the slider shaft through the connecting rod, and the output shaft and / or the slider shaft can be detachably assembled on the connecting rod; The output shaft is transmission-connected with the driving part, the slider shaft is assembled in the joint assembly, and the slider shaft realizes translational motion in the Z direction and axial rotational motion around the X direction, Y direction and Z direction through the joint assembly; the joint assembly is mounted on the guide rail assembly and the slider shaft realizes translational motion in the X direction and Y direction through the guide rail assembly, the joint assembly includes a slider accessory mounted on the guide rail assembly, an axial limit ring and a spherical bearing are mounted in the slider accessory, and the spherical bearing is limited in the Z direction by the axial limit ring; the inner ring of the spherical bearing is movably sleeved with the slider shaft along the Z direction and a retaining spring is disposed at the end of the slider shaft, a stepped hole is opened in the slider accessory, the axial limit ring and the spherical bearing are assembled in the stepped hole, and one end of the axial limit ring abuts against the linear guide slider, and the other end abuts against the spherical bearing, and the slider accessory is fixedly connected to the linear guide slider.

2. A hinge driving device, characterized in that: The driving device includes a driving part and a guide rail assembly, and also includes an output shaft, a slider shaft, a connecting rod and a joint assembly. The output shaft transmits torque to the slider shaft through the connecting rod, and the output shaft and / or the slider shaft can be detachably assembled on the connecting rod; The output shaft is drivingly connected with the driving part, the slider shaft is assembled in the joint assembly, and the slider shaft realizes the translational movement in the Z direction and the axial rotational movement around the X direction, Y direction and Z direction through the joint assembly; the joint assembly is mounted on the guide rail assembly and the slider shaft realizes the translational movement in the X direction and the Y direction through the guide rail assembly, the joint assembly includes a slider accessory mounted on the guide rail assembly, the slider accessory is fixedly connected to the linear guide slider, a spherical bearing is movably sleeved in the slider accessory along the Z direction, and the inner ring of the spherical bearing is fixedly sleeved with the slider shaft and a retaining spring is provided at the end of the slider shaft, an assembly hole is opened in the slider accessory, the assembly hole matches the outer ring of the spherical bearing and the spherical bearing slides freely in the assembly hole along the Z direction.

3. The hinge body driving device according to claim 1 or 2, characterized in that: The output shaft and / or the slider shaft are assembled on the connecting rod through a locking assembly and fixed and locked by screws.

4. The hinge body driving device according to claim 3, characterized in that: The locking assembly comprises a locking male head arranged at the end of the connecting rod, and a locking female head is arranged on the output shaft and / or the slider shaft, and a matching structure is formed between the locking male head and the locking female head to prevent relative rotation.

5. The hinge body driving device according to claim 4, characterized in that: The locking male head is configured to be rectangular, triangular, polygonal or tooth-shaped, and the two ends of the connecting rod are configured to be the same locking male head or any two different locking male heads.

6. The hinge body driving device according to claim 1 or 2, characterized in that: The guide rail assembly comprises a guide rail mounting shell and a linear guide rail mounted in the guide rail mounting shell. A linear guide rail slider is slidably mounted on the linear guide rail, and the linear guide rail slider performs translational motion in the X direction and the Y direction of the linear guide rail.

7. The hinge body driving device according to claim 6, characterized in that: The linear guide rail slider is provided with a slide groove, and the slide groove is nested on the linear guide rail.

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