Steering transmission mechanism with tiller angle monitoring function
By integrating the magnet mechanism and control board, combined with the split magnetic ring and double bearing support, the problem of sensors being susceptible to vibration interference in the forklift steering transmission mechanism is solved, and high-precision steering handle angle monitoring is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XIAMEN WAYOU AUTOMOTIVE ELECTRONIC CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-05-12
AI Technical Summary
In existing forklift steering transmission mechanisms, the sensor installation locations are scattered, making them susceptible to mechanical vibration interference and resulting in unstable signals.
The integrated magnet mechanism and control board, combined with a split magnetic ring and positioning groove structure, enhance anti-interference capabilities and reduce monitoring errors through coaxial mounting and dual bearing support.
It improves the anti-interference capability of angle monitoring, reduces assembly complexity, ensures the accuracy and stability of capturing all-turn angle signals, and reduces monitoring errors.
Smart Images
Figure CN224225136U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of material handling technology, specifically a steering transmission mechanism with rudder angle monitoring function. Background Technology
[0002] Material handling refers to activities conducted within the same location with the primary goal of changing the storage state and spatial position of materials. Material handling is crucial for improving warehouse operational efficiency and directly impacts production efficiency. In manufacturing companies, logistics managers are typically responsible for the processes of receiving goods into the warehouse, storing goods within the warehouse, moving goods from storage locations to the order sorting area, and finally, arriving at the shipping area to be shipped out of the warehouse.
[0003] Existing forklift steering transmission mechanisms typically use independent angle sensors to monitor the steering handle angle, which suffers from problems such as scattered sensor installation locations and signal susceptibility to mechanical vibration interference.
[0004] Based on this, this utility model designs a steering transmission mechanism with rudder angle monitoring function to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a steering transmission mechanism with rudder angle monitoring function to solve the above-mentioned technical problems.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a steering transmission mechanism with rudder angle monitoring function, comprising a housing, a mounting base on one side of the housing, a sensor base on the mounting base, a control board inside the sensor base, a wiring harness connected to the control board, a lower bearing on the housing, a steering shaft inside the lower bearing, a magnet mechanism on the outside of the steering shaft, a damper on the steering shaft, and an upper bearing on the top outside of the steering shaft.
[0007] By adopting the above technical solution, the sensor and control board can be integrated and installed, reducing signal transmission interference.
[0008] Preferably, a limit groove is provided on the steering shaft, and a limit retaining ring is provided at the limit groove on the steering shaft.
[0009] By adopting the above technical solution, the axial displacement of the steering shaft is limited, preventing the magnet mechanism from shifting and affecting the monitoring accuracy.
[0010] Preferably, the magnet mechanism includes a first magnetic ring and a second magnetic ring, both of which have an arc greater than 90°. At the same time, the opposite poles of the first and second magnetic rings attract each other. A positioning groove for mounting the magnet mechanism is also provided on the outer wall of the steering shaft.
[0011] By adopting the above technical solution, the split magnetic ring design is easy to assemble and position, and after combination, it covers a monitoring range of more than 180°, ensuring the capture of signals at all steering angles.
[0012] Preferably, a wave-shaped washer is also provided between the steering shaft and the damper.
[0013] By adopting the above technical solution, the axial clearance between the damper and the steering shaft is eliminated, thereby enhancing the vibration resistance performance.
[0014] Preferably, the bottom end of the steering shaft is connected to a cylindrical pin, and the steering shaft is connected to the rudder through the cylindrical pin.
[0015] By adopting the above technical solution, rigid power transmission between the steering shaft and the rudder is achieved, avoiding relative slippage.
[0016] Preferably, the outer side of the housing is also provided with multiple ear plates.
[0017] By adopting the above technical solution, a multi-bolt installation interface is provided, which enhances the overall stability of the mechanism.
[0018] In summary, this application has the following beneficial technical effects: by setting up a magnet mechanism and a coaxial integration design with the control board, the anti-interference capability of angle monitoring is improved; by setting up a split magnetic ring combined with a positioning groove structure, the assembly complexity is reduced and the magnetic field stability is guaranteed; finally, by setting up a double bearing support and a damper, the monitoring error caused by steering shaft sway is significantly reduced. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is an exploded view illustrating the overall structure of this embodiment;
[0021] Figure 2 This is a schematic assembly diagram of the overall structure of this embodiment;
[0022] Figure 3 This is a schematic diagram of the installation of the steering shaft in this embodiment.
[0023] The attached diagram lists the components represented by each number as follows:
[0024] 1. Housing; 2. Mounting base; 3. Sensor base; 4. Control board; 5. Wiring harness; 6. Lower bearing; 7. Steering shaft; 8. Cylindrical pin; 9. Magnet mechanism; 91. First magnetic ring; 92. Second magnetic ring; 10. Damper; 11. Upper bearing; 12. Limiting ring; 13. Wave washer; 14. Ear plate; 15. Positioning groove; 16. Limiting groove. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0026] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0027] A steering transmission mechanism with rudder angle monitoring function includes a housing 1, a mounting base 2 on one side of the housing 1, a sensor base 3 on the mounting base 2, a control board 4 inside the sensor base 3, a Hall sensor on the control board 4 for monitoring the rudder angle, a wiring harness 5 connected to the control board 4 for transmitting the signal monitored by the sensor for easy reading, a lower bearing 6 on the housing 1, a steering shaft 7 inside the lower bearing 6, and a coaxial connection between the steering shaft 7 and the rudder for real-time monitoring of the steering angle of the rudder, a magnet mechanism 9 sleeved on the outside of the steering shaft 7, a damper 10 on the steering shaft 7, and an upper bearing 11 on the top outer side of the steering shaft 7, so that the steering shaft 7 can rotate more smoothly, thereby reducing the impact on angle monitoring.
[0028] Furthermore, a limit groove 16 is provided on the steering shaft 7, and a limit retaining ring 12 is provided at the limit groove 16 on the steering shaft 7, which can limit the steering of the steering shaft 7.
[0029] Furthermore, the magnet mechanism 9 includes a first magnetic ring 91 and a second magnetic ring 92. The arc of both the first magnetic ring 91 and the second magnetic ring 92 is greater than 90°. The two magnetic rings combined can form a monitoring range of more than 180°. At the same time, the opposite poles of the first magnetic ring 91 and the second magnetic ring 92 attract each other. A positioning groove 15 for installing the magnet mechanism 9 is also provided on the outer wall of the steering shaft 7. The magnet can be easily installed on the steering shaft 7 through the split magnetic ring.
[0030] Furthermore, a wave washer 13 is provided between the steering shaft 7 and the damper 10 to eliminate the axial clearance between the damper and the steering shaft and enhance the vibration resistance.
[0031] Furthermore, a cylindrical pin 8 is connected to the bottom end of the steering shaft 7, and the steering shaft 7 is connected to the rudder through the cylindrical pin 8, thereby improving the connection effect.
[0032] Furthermore, multiple ear plates 14 are provided on the outer side of the outer casing 1, which can facilitate the installation of the transmission mechanism.
[0033] The implementation principle of this embodiment is as follows: when the rudder drives the steering shaft 7 to rotate, the magnet mechanism 9 rotates synchronously with the shaft. The Hall sensor on the control board 4 detects the change in magnetic field and transmits the steering angle signal to the external display terminal via the wiring harness 5. The upper bearing 11 and the lower bearing 6 jointly constrain the radial runout of the steering shaft. The damper 10 absorbs the steering impact. The wave washer 13 compensates for the axial clearance. The limit retaining ring 12 prevents the steering shaft from dislodging. The ear plate 14 fixes the outer shell 1 to the forklift with bolts to ensure overall stability.
[0034] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A steering transmission mechanism with rudder angle monitoring function, comprising a housing (1), characterized in that: A mounting base (2) is provided on one side of the housing (1), a sensor base (3) is provided on the mounting base (2), a control board (4) is provided inside the sensor base (3), a wire harness (5) is connected to the control board (4), a lower bearing (6) is provided on the housing (1), a steering shaft (7) is provided inside the lower bearing (6), a magnet mechanism (9) is sleeved on the outside of the steering shaft (7), a damper (10) is also provided on the steering shaft (7), and an upper bearing (11) is also provided on the top outside of the steering shaft (7).
2. The steering transmission mechanism with rudder angle monitoring function according to claim 1, characterized in that: A limit groove (16) is provided on the steering shaft (7), and a limit retaining ring (12) is provided at the limit groove (16) on the steering shaft (7).
3. A steering transmission mechanism with rudder angle monitoring function according to claim 1, characterized in that: The magnet mechanism (9) includes a first magnetic ring (91) and a second magnetic ring (92). The arc of the first magnetic ring (91) and the second magnetic ring (92) is greater than 90°. At the same time, the two ends of the first magnetic ring (91) and the second magnetic ring (92) that are in contact with each other are attracted by opposite polarities. A positioning groove (15) for installing the magnet mechanism (9) is also provided on the outer wall of the steering shaft (7).
4. A steering transmission mechanism with rudder angle monitoring function according to claim 1, characterized in that: A wave washer (13) is also provided between the steering shaft (7) and the damper (10).
5. A steering transmission mechanism with rudder angle monitoring function according to claim 1, characterized in that: The bottom end of the steering shaft (7) is connected to a cylindrical pin (8), and the steering shaft (7) is connected to the rudder through the cylindrical pin (8).
6. A steering transmission mechanism with rudder angle monitoring function according to claim 1, characterized in that: The outer side of the outer shell (1) is also provided with a plurality of ear plates (14).