Connecting device with bidirectional clearance compensation function
By designing a connection device with bidirectional clearance compensation function, using rectangular mounting grooves, threaded shafts, cross joints and adjustment bolts, the problem that the existing aircraft door adjustment device cannot achieve stepless adjustment and insufficient load capacity is achieved, and high loads are achieved Transfer and compact effect.
Patent Information
- Application Number
- CN202323615928.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-28
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2033-12-28
AI Technical Summary
The existing aircraft door adjustment device cannot achieve stepless adjustment, the clamp plate has small teeth and weak load-bearing capacity, making it difficult to adapt to high load-bearing conditions.
A connection device with bidirectional clearance compensation function is designed, including rectangular mounting grooves, threaded shafts, cross joints and adjustment bolts. It is fixed by welding and clamping nuts to achieve rapid butt removal of the two connected parts and high load transfer.
High load transfer and two-direction gap compensation are achieved, providing a sufficiently small adjustment amount to adapt to the relative deviation and deformation between the connected parts, the structure is simple and reliable, the space occupies small and the weight is light.
Smart Images
Figure CN222208484U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of aircraft door mechanism design, and in particular relates to a connection device with a bidirectional gap compensation function. Background Art
[0002] The commonly used adjustment method for hatch doors is to use toothed pallets. The pallets need to be matched in pairs, and each adjustment moves a tooth distance, which cannot achieve stepless adjustment. In addition, the pallet teeth are small in size and have weak load-bearing capacity, making them unsuitable for adjustment under high-load conditions.
[0003] Therefore, it is desired to have a technical solution to overcome or at least alleviate at least one of the above-mentioned defects of the prior art. Utility Model Content
[0004] The purpose of the present application is to provide a connection device with a bidirectional gap compensation function to solve at least one problem existing in the prior art.
[0005] The technical solution of this application is:
[0006] A connecting device with a bidirectional gap compensation function, comprising:
[0007] A second connected member, wherein the second connected member is provided with a rectangular mounting groove, a first mounting hole is formed at the bottom of the rectangular mounting groove, and second mounting holes are formed at four groove walls of the rectangular mounting groove;
[0008] a first connected member, the first connected member being arranged below the rectangular mounting groove, a threaded shaft being fixedly mounted on the first connected member, and the threaded shaft being inserted into the rectangular mounting groove through the first mounting hole;
[0009] A cross joint, which is sleeved on the threaded shaft and fixed by a clamping nut, and has four joint parts arranged in a cross shape, and each joint part is provided with an external thread;
[0010] The adjusting bolts include four adjusting bolts, each of which is provided with an internal thread. The four adjusting bolts pass through the second mounting holes of the rectangular mounting groove and are threadedly connected with the corresponding joint parts of the cross joint.
[0011] In at least one embodiment of the present application, the threaded shaft is connected to the first connected member by welding.
[0012] In at least one embodiment of the present application, the cross joint has a cylindrical main body located in the center and four joint parts arranged in a cross shape on the side wall of the cylindrical main body, and the cross joint is sleeved on the threaded shaft through the cylindrical main body.
[0013] In at least one embodiment of the present application, the adjusting bolt is connected to the cross joint with a gasket.
[0014] In at least one embodiment of the present application, a stop pin is installed on the second connected member.
[0015] The utility model has at least the following beneficial technical effects:
[0016] The connection device with bidirectional gap compensation function of the present application can transmit high loads and has the ability to compensate gaps in two directions. It can realize rapid docking and disassembly of two connected parts and can provide a sufficiently small adjustment amount to adapt to the relative deviation and deformation between the connected parts. The structural principle is simple and reliable, occupies a small space and is light in weight. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a schematic diagram of a connection device with a bidirectional gap compensation function according to an embodiment of the present application;
[0018] Figure 2 is a schematic diagram of a first connected member in one embodiment of the present application;
[0019] Figure 3 is a schematic diagram of a second connected member in one embodiment of the present application;
[0020] Figure 4 is a schematic diagram of a cross joint according to an embodiment of the present application;
[0021] Figure 5 This is a schematic diagram of an adjusting bolt according to an embodiment of the present application.
[0022] in:
[0023] 1-threaded shaft; 2-cross joint; 3-adjusting bolt; 4-stop pin; 5-clamping nut. DETAILED DESCRIPTION
[0024] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the embodiment of this application will be described in more detail below in conjunction with the drawings in the embodiment of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described embodiments are part of the embodiments of this application, not all of them. The embodiments described below with reference to the drawings are exemplary and are intended to be used to explain this application, and should not be construed as limitations on this application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The embodiments of this application are described in detail below in conjunction with the drawings.
[0025] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations 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 orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the scope of protection of the present application.
[0026] The following is combined with Figures 1 to 5 This application is described in further detail.
[0027] The present application provides a connection device with a bidirectional gap compensation function, comprising: a threaded shaft 1 installed on a first connected member I, a cross joint 2, an adjusting bolt 3 and a clamping nut 5.
[0028] Specifically, Figure 1 As shown, a rectangular mounting groove is provided on the second connected member II, a first mounting hole is provided at the bottom of the rectangular mounting groove, and second mounting holes are provided on the four groove walls of the rectangular mounting groove. The second mounting holes are preferably oblong holes. The first connected member is provided below the rectangular mounting groove, and the threaded shaft 1 is fixedly connected to the first connected member I, for example, by welding. The threaded shaft 1 is inserted into the rectangular mounting groove through the first mounting hole, and the first connected member is also provided with a connecting ear for connecting with other structures; the cross joint 2 has a cylindrical main body located in the center and four joint parts arranged in a cross shape on the side wall of the cylindrical main body. The cross joint 2 is sleeved on the threaded shaft 1 through the cylindrical main body in the center and fixed by a clamping nut 5. The four joint parts are provided with external threads, which correspond one by one to the positions of the four second mounting holes on the rectangular mounting groove. The adjusting bolts 3 include four, which are hollow bolts with internal threads and are installed in the second mounting holes of the corresponding second connected part II. The four adjusting bolts 3 pass through the oblong holes of the rectangular mounting grooves and are threadedly connected to the joint parts of the corresponding cross joints 2. Preferably, the adjusting bolts 3 are connected to the cross joints 2 in conjunction with gaskets.
[0029] The connection device with bidirectional clearance compensation function of the present application, the adjusting bolt 3 and the cross joint 2 form a threaded pair to realize stepless axial adjustment in two mutually perpendicular directions, the clamping nut 5 cooperates with the threaded shaft 1 to fix the cross joint 2 in the third axial direction, and realizes a fixed connection between the first connected part I and the second connected part II under the condition of relative deformation deviation in two directions.
[0030] Before installing the connection device with bidirectional clearance compensation function of the present application, it should be confirmed that the threaded shaft 1 is connected to the first connected part I and has been assembled to the specified position, and the adjusting bolt 3 has been pre-installed on the second connected part II. During installation, first install the second connected part II on the first connected part I, then insert the cross joint 2 into the threaded shaft 1, and then tighten each adjusting bolt 3 so that the bolt head of each adjusting bolt 3 fits the surface of the second connected part II, insert the stop pin 4, and finally screw in the clamping nut 5 to complete the installation. Inserting the stop pin 4 on the second connected part II can effectively prevent the thread pair from loosening and ensure a stable and reliable connection. The design dimensions of the threaded shaft 1, the cross joint 2 and the adjusting bolt 3 are determined according to the external load conditions, and can achieve a large load connection.
[0031] The connection device with bidirectional gap compensation function of the present application can realize the rapid docking and disassembly of two connected parts. The adjustment device should be able to provide a sufficiently small adjustment amount to adapt to the relative deviation and deformation between the connected parts. It has a compact structure, occupies a small space, and is light in weight. The size of the connecting part is determined according to the external load conditions to ensure that it can bear a higher load after connection.
[0032] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.
Claims
1. A connection device with a bidirectional gap compensation function, characterized in that: include: A second connected member, wherein the second connected member is provided with a rectangular mounting groove, a first mounting hole is formed at the bottom of the rectangular mounting groove, and second mounting holes are formed at four groove walls of the rectangular mounting groove; A first connected member, the first connected member is arranged below the rectangular mounting groove, a threaded shaft (1) is fixedly mounted on the first connected member, and the threaded shaft (1) is inserted into the rectangular mounting groove through the first mounting hole; A cross joint (2), the cross joint (2) being sleeved on the threaded shaft (1) and fixed by a clamping nut (5), the cross joint (2) having four joint parts arranged in a cross shape, the joint parts being provided with external threads; The adjusting bolts (3) include four adjusting bolts (3) each having an internal thread. The four adjusting bolts (3) pass through the second mounting holes of the rectangular mounting groove and are threadedly connected to the corresponding joint parts of the cross joint (2).
2. The connection device with bidirectional gap compensation function according to claim 1, characterized in that: The threaded shaft (1) is connected to the first connected member by welding.
3. The connection device with bidirectional gap compensation function according to claim 1, characterized in that: The cross joint (2) comprises a cylindrical main body located in the center and four joint parts arranged in a cross shape on the side wall of the cylindrical main body. The cross joint (2) is sleeved on the threaded shaft (1) through the cylindrical main body.
4. The connection device with bidirectional gap compensation function according to claim 1, characterized in that: The adjusting bolt (3) is connected to the cross joint (2) in cooperation with a gasket.
5. The connection device with bidirectional gap compensation function according to claim 1, characterized in that: A stop pin (4) is installed on the second connected member.