Automobile steering input shaft

Abstract

The utility model relates to the technical field of input shafts, and discloses an automobile steering input shaft which comprises a fixing shaft, an input shaft body is arranged at the bottom of the fixing shaft, a gear is fixedly connected to the bottom of the input shaft body, and fixing devices are arranged on the fixing shaft and the input shaft body. A connecting device is arranged on the input shaft body and comprises connecting columns, connecting grooves, limiting rods, a first fixing base, a second fixing base, automatic telescopic rods, clamping blocks and connecting blocks, and the two connecting columns are fixedly connected to the bottom of the fixing shaft. The two connecting grooves are formed in the top of the input shaft body, and the connecting columns are movably connected into the connecting grooves. The automatic telescopic rod stretches out and draws back to drive the first fixing base and the second fixing base to slide, the first fixing base and the second fixing base slide to clamp the connecting block and limit the clamping block, meanwhile, the connecting column is connected into the connecting groove, and the fixing shaft and the input shaft body are connected.

Description

Technical Field

[0001] The utility model relates to the technical field of input shafts, in particular to an automobile steering input shaft. Background Art

[0002] In automobile production, since it is impossible to 100% guarantee that the steering column axis and the steering gear input shaft are in the same straight line during the design and production process, in order to ensure the transmission of steering force and the transmission and input and output of torque in a limited space, the connection between the steering gear and the steering column is completed through steering drive shafts of different lengths.

[0003] For example, the patent with announcement number CN218858515U discloses a steering input shaft of an automobile, and the key points of its technical solution are: it includes a fixed shaft, the bottom surface of which is provided with an input shaft body; an installation component, which is arranged on the bottom surface of the fixed shaft and is used to install the connecting semi-ring, and the fixed shaft, input shaft body, support column, spherical head, installation groove, movable plate, installation column and first spring cooperate with each other, so that the spherical head enters under the two movable plates, and the fixed shaft, fixed block, movable plate, placement groove, placement column and limiting hole cooperate with each other, so that the fixed block enters the inside of the placement groove on the movable plate, and the fixed shaft and the input shaft body cooperate with each other through the first spring, movable plate, support column, fixed shaft and input shaft body, so that the fixed shaft and the input shaft body can be connected together, so as to avoid the shaking of the fixed shaft and the input shaft body affecting the staff to install the connecting semi-ring, thereby achieving the installation effect of the connecting semi-ring.

[0004] The existing device fixed shaft and the input shaft are not firmly connected, so an automobile steering input shaft is proposed to solve the above problem. Utility Model Content

[0005] The utility model aims to provide a steering input shaft for an automobile, so as to solve the above-mentioned problem.

[0006] To achieve the above object, the utility model provides the following technical solution: an automobile steering input shaft, comprising a fixed shaft, an input shaft body is arranged at the bottom of the fixed shaft, a gear is fixedly connected to the bottom of the input shaft body, and a fixing device is arranged on the fixed shaft and the input shaft body;

[0007] The input shaft body is provided with a connecting device, which includes a connecting column, a connecting groove, a limiting rod, a first fixing seat, a second fixing seat, an automatic telescopic rod, a clamping block, and a connecting block. The two connecting columns are fixedly connected to the bottom of the fixed shaft.

[0008] Preferably, the two connecting grooves are formed on the top of the input shaft body, and the connecting column is movably connected in the connecting grooves. The connecting column is movably connected in the connecting grooves to achieve the function of connecting the fixed shaft and the input shaft body.

[0009] Preferably, a rectangular groove is formed on the top of the input shaft body, the two limit rods are fixedly connected in the rectangular groove, and the first fixing seat and the second fixing seat are movably connected to the outer wall of the limit rod.

[0010] Preferably, the two automatic telescopic rods are fixedly mounted on the left side of the first fixing seat and the right side of the second fixing seat respectively, the connecting block is fixedly connected to the bottom of the fixing shaft, and the clamping block is fixedly connected to the bottom of the connecting block. The automatic telescopic rods are extended and retracted to drive the first fixing seat and the second fixing seat to slide.

[0011] Preferably, the fixing device comprises a connecting half ring, a fixing plate, a rotating rod, a threaded rod, and a threaded groove, wherein the connecting half ring is movably sleeved on the outer circumferential wall of the fixing shaft and the input shaft body. By providing the connecting half ring, the fixing shaft and the input shaft body can be fixedly connected.

[0012] Preferably, the two fixing plates are fixedly connected to the connecting half ring, the thread groove is provided on the fixing plate, the threaded rod is threadedly connected in the thread groove, and the rotating rod is fixedly connected to the right side of the threaded rod. By rotating the rotating rod, the threaded rod is driven to rotate.

[0013] The utility model provides a steering input shaft for an automobile, which has the following beneficial effects:

[0014] (1) The utility model drives the first fixed seat and the second fixed seat to slide by the automatic telescopic rod extending and retracting. The first fixed seat and the second fixed seat slide to clamp the connecting block and restrict the clamping block. At the same time, the connecting column is connected in the connecting groove to connect the fixed shaft and the input shaft body.

[0015] (2) The utility model drives the threaded rod to rotate in the threaded groove by rotating the rotating rod, thereby connecting the two connecting half rings, so that the connection between the fixed shaft and the input shaft body is more firmly established. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional front structure of the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the connection device of the utility model;

[0020] Figure 4 It is a schematic diagram of the enlarged structure of point A of the utility model.

[0021] In the figure: 1, fixed shaft; 2, input shaft body; 3, gear; 4, fixing device; 5, connecting device; 401, connecting half ring; 402, fixing plate; 403, rotating rod; 404, threaded rod; 405, threaded groove; 501, connecting column; 502, connecting groove; 503, limiting rod; 504, first fixing seat; 505, second fixing seat; 506, automatic telescopic rod; 507, clamping block; 508, connecting block. DETAILED DESCRIPTION

[0022] 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.

[0023] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like 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 mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. Example 1

[0024] like Figure 1-4As shown, the utility model provides a technical solution: a steering input shaft of an automobile, comprising a fixed shaft 1, an input shaft body 2 is arranged at the bottom of the fixed shaft 1, a gear 3 is fixedly connected to the bottom of the input shaft body 2, a fixing device 4 is arranged on the fixed shaft 1 and the input shaft body 2; a connecting device 5 is arranged on the input shaft body 2, the connecting device 5 comprises a connecting column 501, a connecting groove 502, a limiting rod 503, a first fixing seat 504, a second fixing seat 505, an automatic telescopic rod 506, a clamping block 507, and a connecting block 508, and two connecting columns 501 are fixedly connected to the bottom of the fixed shaft 1. Two connecting grooves 502 are opened at the top of the input shaft body 2, and the connecting column 501 is movably connected in the connecting groove 502. A rectangular groove is opened at the top of the input shaft body 2, two limiting rods 503 are fixedly connected in the rectangular groove, and the first fixing seat 504 and the second fixing seat 505 are movably connected to the outer wall of the limiting rod 503. The two automatic telescopic rods 506 are respectively fixedly mounted on the left side of the first fixing seat 504 and the right side of the second fixing seat 505 , the connecting block 508 is fixedly connected to the bottom of the fixed shaft 1 , and the clamping block 507 is fixedly connected to the bottom of the connecting block 508 .

[0025] In this embodiment, the fixed shaft 1 is connected to the input shaft body 2 through the connecting column 501 fixedly connected to the bottom of the fixed shaft 1 and the connecting groove 502 opened at the top of the input shaft body 2. At the same time, the connecting block 508 and the clamping block 507 fixedly connected to the bottom of the fixed shaft 1 enter the rectangular groove, and the first fixed seat 504 and the second fixed seat 505 are driven to slide by the automatic telescopic rod 506. The first fixed seat 504 and the second fixed seat 505 slide to clamp the connecting block 508 and limit the clamping block 507, so that the fixed shaft 1 and the input shaft body 2 are connected more firmly, and the sliding of the first fixed seat 504 and the second fixed seat 505 is limited by setting a limiting rod 503. Example 2

[0026] like Figure 1-4 As shown, on the basis of the first embodiment, the utility model provides a technical solution: the fixing device 4 includes a connecting half ring 401, a fixing plate 402, a rotating rod 403, a threaded rod 404, and a thread groove 405, and the connecting half ring 401 is movably sleeved on the outer circumferential wall of the fixing shaft 1 and the input shaft body 2. The two fixing plates 402 are fixedly connected to the connecting half ring 401, the thread groove 405 is provided on the fixing plate 402, the threaded rod 404 is threadedly connected in the thread groove 405, and the rotating rod 403 is fixedly connected to the right side of the threaded rod 404.

[0027] In this embodiment, a connecting half ring 401 is sleeved at the connection between the fixed shaft 1 and the input shaft body 2, a fixing plate 402 is fixed on the connecting half ring 401, and a threaded groove 405 is provided on the fixing plate 402. By rotating the rotating rod 403 to drive the threaded rod 404 to rotate in the threaded groove 405, the two connecting half rings 401 are connected, and the connection between the fixed shaft 1 and the input shaft body 2 is fixed.

[0028] When in use, the fixed shaft 1 is connected to the input shaft body 2 through the connecting column 501 fixedly connected to the bottom of the fixed shaft 1 and the connecting groove 502 opened on the top of the input shaft body 2. At the same time, the connecting block 508 and the clamping block 507 fixedly connected to the bottom of the fixed shaft 1 enter the rectangular groove, and the first fixed seat 504 and the second fixed seat 505 are driven to slide by the automatic telescopic rod 506. The first fixed seat 504 and the second fixed seat 505 slide to clamp the connecting block 508 and restrict the clamping block 507, so that the fixed shaft 1 and the input shaft The main body 2 is connected more firmly. The limiting rod 503 is set to limit the sliding of the first fixing seat 504 and the second fixing seat 505. After the fixed shaft 1 is connected to the input shaft main body 2, the connecting half ring 401 is sleeved at the connection. The connecting half ring 401 is fixedly connected to the fixing plate 402. The fixing plate 402 is provided with a threaded groove 405. The rotating rod 403 is rotated to drive the threaded rod 404 to rotate in the threaded groove 405, and the two connecting half rings 401 are connected to fix the connection between the fixed shaft 1 and the input shaft main body 2.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A vehicle steering input shaft, comprising a fixed shaft (1), characterized in that: An input shaft body (2) is arranged at the bottom of the fixed shaft (1), a gear (3) is fixedly connected to the bottom of the input shaft body (2), and a fixing device (4) is arranged on the fixed shaft (1) and the input shaft body (2); a connecting device (5) is arranged on the input shaft body (2), and the connecting device (5) comprises a connecting column (501), a connecting groove (502), a limiting rod (503), a first fixing seat (504), a second fixing seat (505), an automatic telescopic rod (506), a clamping block (507), and a connecting block (508), and the two connecting columns (501) are fixedly connected to the bottom of the fixed shaft (1).

2. The automobile steering input shaft according to claim 1, characterized in that: The two connection grooves (502) are opened on the top of the input shaft body (2), and the connection column (501) is movably connected in the connection grooves (502).

3. The automobile steering input shaft according to claim 1, characterized in that: A rectangular groove is provided on the top of the input shaft body (2), the two limit rods (503) are fixedly connected in the rectangular groove, and the first fixing seat (504) and the second fixing seat (505) are movably connected to the outer wall of the limit rod (503).

4. The automobile steering input shaft according to claim 3, characterized in that: The two automatic telescopic rods (506) are respectively fixedly mounted on the left side of the first fixing seat (504) and the right side of the second fixing seat (505); the connecting block (508) is fixedly connected to the bottom of the fixing shaft (1); and the clamping block (507) is fixedly connected to the bottom of the connecting block (508).

5. The automobile steering input shaft according to claim 1, characterized in that: The fixing device (4) comprises a connecting half ring (401), a fixing plate (402), a rotating rod (403), a threaded rod (404), and a threaded groove (405); the connecting half ring (401) is movably sleeved on the outer circular wall surfaces of the fixing shaft (1) and the input shaft body (2).

6. The automobile steering input shaft according to claim 5, characterized in that: The two fixing plates (402) are fixedly connected to the connecting half ring (401), the threaded groove (405) is opened on the fixing plate (402), the threaded rod (404) is threadedly connected in the threaded groove (405), and the rotating rod (403) is fixedly connected to the right side of the threaded rod (404).

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