CN209096815U - a mechanical steering system - Google Patents

Abstract

The utility model provides a kind of mechanical steering system, is related to automobile steering system field.Mechanical steering system includes sequentially connected ball-and-nut steering gear, the first bulb component, bar body, the second bulb component and pitman arm；Ball-and-nut steering gear includes ball-and-nut steering gear rocker arm, first bulb component includes the first ball cup and the first ball stud, first ball cup is fixedly connected on ball-and-nut steering gear rocker arm, the first end of first ball stud is connected to the first ball cup and can rotate relative to the first ball cup, the second end of first ball stud is connected to bar body, and second end can be moved with respect to bar body along the axial direction of bar body.This mechanical steering system adjusting yoke length is convenient, improves the debugging efficiency of ball-and-nut steering gear.

Description

a mechanical steering system

technical field

The utility model relates to the field of automobile steering systems, in particular to a mechanical steering system.

Background technique

One end of the tie rod body of the traditional commercial vehicle steering tie rod is used to connect to the rocker arm of the recirculating ball steering gear through the first ball joint assembly, and the other end of the tie rod body is connected to the steering rocker arm through the second ball joint assembly, so that the self-circulating ball The steering gear transmits the steering motion to the steering rocker arm to complete the steering action of the car.

The first ball joint assembly includes a first ball joint pin and a first ball joint seat, one end of the first ball joint pin is connected to the rocker arm of the recirculating ball diverter, and the other end of the first ball joint pin is connected to the first ball joint The head seat can be rotated relative to the first ball head seat. When it is necessary to adjust the positioning of the recirculating ball steering gear or the steering front wheel, only the first ball stud can be removed and connected to one end of the rocker arm of the recirculating ball steering gear, so that the first The ball head assembly and the subsequent tie rod body and other parts are separated from the rocker arm of the recirculating ball diverter, adjust the length of the tie rod to the required length, and then connect the first ball stud and the rocker arm of the recirculating ball diverter to check whether the recirculating ball diverter is correct. The standard line, and so on, until the adjustment is completed. The operation is cumbersome and the debugging efficiency is low.

Utility model content

The purpose of the utility model includes providing a mechanical steering system, which is convenient to adjust the length of the tie rod and improves the debugging efficiency of the recirculating ball steering device.

The embodiment of the present utility model is realized in this way:

A mechanical steering system comprises a recirculating ball diverter, a first ball joint assembly, a tie rod body, a second ball joint assembly and a steering rocker arm connected in sequence; the recirculating ball diverter comprises a recirculating ball diverter rocker arm, a first ball joint The head assembly includes a first ball socket and a first ball pin, the first ball socket is fixedly connected to the rocker arm of the recirculating ball diverter, and the first end of the first ball pin is connected to the first ball socket and can be opposite to the first ball socket. A ball socket is rotated, the second end of the first ball pin is connected to the tie rod body, and the second end can move relative to the tie rod body along the axial direction of the tie rod body.

Further, the second end is threadedly connected with the tie rod body, and when the second end rotates relative to the tie rod body, the first end is far away from or close to the tie rod body.

Further, the second end is provided with an external thread, and the tie rod body is provided with an internal thread matched with the external thread.

Further, the first ball stud comprises a screw, the screw is provided with an external thread, the tie rod body is provided with a screw hole, the screw hole is provided with an internal thread, and the screw is matched with the screw hole.

Further, a fastener is provided at the connection between the first ball stud and the tie rod body, and the fastener is used to lock the position of the first ball stud relative to the tie rod body.

Further, the above-mentioned fastener is a tightening nut, and the tightening nut is sleeved on the first ball stud.

Further, the first ball stud is provided with a wrench bayonet, and the wrench bayonet is located between the first end and the second end.

Further, the first end is a spherical end, and the spherical end is arranged in the first ball socket and can rotate in the first ball socket.

Further, the above-mentioned spherical end is riveted to the first ball socket.

Further, the above-mentioned second ball head assembly includes a second ball head seat and a second ball head pin, one end of the second ball head seat is fixedly connected to the tie rod body, and the other end of the second ball head seat is connected to the second ball head pin. , the second ball stud can rotate relative to the second ball seat, and the second ball stud is connected to the steering rocker arm.

The beneficial effects of the embodiments of the present utility model include: the mechanical steering system includes a recirculating ball diverter, a first ball joint assembly, a tie rod body, a second ball joint assembly and a steering rocker arm connected in sequence; the recirculating ball diverter includes a recirculating ball diverter rocker arm, the first ball joint assembly includes a first ball joint seat and a first ball joint pin, the first ball joint socket is fixedly connected to the recirculating ball diverter rocker arm, and the first end of the first ball joint pin is connected to the first ball joint The head seat is rotatable relative to the first ball head seat, the second end of the first ball stud is connected to the tie rod body, and the second end can move relative to the tie rod body along the axial direction of the tie rod body. In this mechanical steering system, the relative positions of the first ball stud and the first ball seat are exchanged, so that the first ball seat is fixedly connected to the rocker arm of the recirculating ball steering gear, the first ball stud is connected to the tie rod body, and the A ball stud can rotate relative to the first ball seat, which not only meets the steering requirements of the car, but also does not need to disassemble the tie rod when adjusting the positioning of the recirculating ball steering gear or the steering front wheel, and it is convenient to adjust the length of the tie rod and improve the debugging of the recirculating ball steering gear. efficiency.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings that need to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention. Therefore, it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, other related drawings can also be obtained from these drawings without any creative effort.

1 is a schematic structural diagram of a mechanical steering system in an embodiment of the present utility model;

FIG. 2 is an exploded view of the mechanical steering system in the embodiment of the present invention.

Icon: 100-Mechanical steering system; 110-Recirculating ball steering gear; 112-Recirculating ball steering gear arm; 114-Recirculating ball steering gear body; 116-Input shaft; 120-First ball joint assembly; 122-First ball Head seat; 123-Ball stud body; 124-First ball stud; 125-Ball stud connecting rod; 126-First end; 127-Second end; 129-External thread; 130-Screw; 134-Tightening Firmware; 140-tie rod body; 142-screw hole; 150-second ball joint assembly; 152-second ball joint seat; 154-second ball joint pin; 160-steering rocker arm.

Detailed ways

In order to make the purposes, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described above are a part of the embodiments of the present invention, but not all of the embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

Accordingly, the following detailed description of the embodiments of the invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be noted that like numerals and letters refer to like items in the following figures, so once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or is the customary pendulum when the utility model product is used. The orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying 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 construed as affecting the present utility model. New type of restriction. Furthermore, the terms "first", "second", etc. are only used to differentiate the description and should not be construed to indicate or imply relative importance.

Furthermore, terms such as "horizontal", "vertical" and the like do not imply that components are required to be absolutely horizontal or overhang, but rather may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise expressly specified and limited, the terms "arrangement", "installation", "connection" and "connection" should be understood in a broad sense, for example, it may be a fixed connection It can also be 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, or the internal communication between the two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood in specific situations.

Example

Referring to FIGS. 1 and 2 , the present embodiment provides a mechanical steering system 100 , which includes a recirculating ball diverter 110 , a first ball joint assembly 120 , a tie rod body 140 , a second ball joint assembly 150 , and a steering rocker connected in sequence. Arm 160. The recirculating ball diverter 110 includes a recirculating ball diverter rocker arm 112 , the first ball joint assembly 120 includes a first ball joint seat 122 and a first ball joint pin 124 , and the first ball joint socket 122 is fixedly connected to the recirculating ball diverter rocker arm 112. The first end 126 of the first ball stud 124 is connected to the first ball seat 122 and can rotate relative to the first ball seat 122, and the second end 127 of the first ball stud 124 is connected to the tie rod body 140. The two ends 127 can move relative to the tie rod body 140 in the axial direction of the tie rod body 140 .

The recirculating ball steering gear 110 includes the recirculating ball steering gear body 114 , the input shaft 116 and the recirculating ball steering gear rocker arm 112 connected in sequence. The steering action of the automobile is transmitted to the recirculating ball steering gear arm 112 through the input shaft 116 , and the recirculating ball steering gear is turned The swing arm 112 is rotatable about the input shaft 116 . The recirculating ball diverter rocker arm 112 is fixedly connected to the recirculating ball diverter body 114 .

The first ball stud assembly 120 includes a first ball stud 122 and a first ball stud 124 . The first ball stud 122 is fixedly connected to the recirculating ball diverter rocker arm 112 , the first ball stud 124 is connected to the first ball stud 122 and can rotate relative to the first ball stud 122 , and the first ball stud 124 is connected to the first ball stud 122 . Pull rod body 140 .

Specifically, the first ball socket 122 includes a ball socket body 123 and a ball socket link 125 which are connected to each other. The ball socket body 123 and the ball socket connecting rod 125 are fixedly connected. The ball socket body 123 is connected with the first end 126 of the first ball socket pin 124 , and the ball socket connecting rod 125 is used for connecting with the recirculating ball steering gear rocker arm 112 . A cavity is provided inside the ball socket body 123 for accommodating the first end 126 of the first ball stud 124 . A rubber bushing is arranged in the first ball socket 122 , and the rubber bushing is used to reduce the friction between the ball socket body 123 and the first ball socket pin 124 .

The first ball stud 124 has a first end 126 and a second end 127 . In this embodiment, the first end 126 is a spherical end, the spherical end is disposed in the first ball socket 122 and can rotate in the first ball socket 122 , and the spherical end is riveted to the first ball socket 122 . In other embodiments, the first end 126 may also be an ellipsoid, as long as the first end 126 can rotate relative to the first ball socket 122 within a desired range.

The second end 127 is threadedly connected to the rod body 140 , when the second end 127 rotates relative to the rod body 140 , the first end 126 is away from or close to the rod body 140 , so that the length of the rod can be adjusted. Specifically, the second end 127 is provided with an external thread 129 , and the tie rod body 140 is provided with an internal thread matched with the external thread 129 . In this embodiment, the first ball stud 124 includes a screw rod 130 , and the screw rod 130 is provided with an external thread 129 for cooperating with the tie rod body 140 .

The tie rod body 140 is provided with a screw hole 142 , the screw hole 142 is provided with an internal thread, and the screw rod 130 is matched with the screw hole 142 . Specifically, the screw hole 142 is located at one end of the tie rod body 140 close to the first ball stud 124 , and the inner wall of the screw hole 142 is provided with an internal thread for cooperating with the screw 130 to connect the first ball stud 124 . The position of the first ball stud 124 can be adjusted relative to the tie rod body 140 through threaded connection, so as to adjust the length of the entire tie rod.

In addition, a fastener 134 is provided at the connection between the second end 127 of the first ball stud 124 and the tie rod body 140 , and the fastener 134 is used to lock the position of the first ball stud 124 relative to the tie rod body 140 . In this embodiment, the fastener 134 is a fastening nut, and the fastening nut is sleeved on the first ball stud 124 to easily lock the relative position of the first ball stud 124 and the tie rod body 140 . In other embodiments, the fastener 134 can also be a hoop or the like sleeved on the tie rod body 140 , and only needs to ensure that the relative position of the first ball stud 124 and the tie rod body 140 can be effectively locked.

It should be understood that the second end 127 of the first ball stud 124 is connected with the threaded connection of the tie rod body 140. On the premise of ensuring the strength of the tie rod, the first ball stud 124 can also be provided with an internal thread, and the tie rod body 140 can be provided with an external thread 129 , and at the same time, the tightening nut serving as the fastener 134 is sleeved on the tie rod body 140 .

The other end of the tie rod body 140 is connected to the second ball joint assembly 150 . The second ball head assembly 150 includes a second ball head seat 152 and a second ball head pin 154. One end of the second ball head seat 152 is fixedly connected to the tie rod body 140, and the other end of the second ball head seat 152 is connected to the second ball head Header pin 154. Similar to the first ball stud 122 and the first ball stud 124, the second ball stud 154 is rotatable relative to the second ball stud 152, and the second ball stud 154 is connected to the steering rocker arm 160 to transmit the power from the circulating ball Steering action of the steering gear 110 .

The working principle and working process of the mechanical steering system 100 are as follows:

When the position of the recirculating ball diverter 110 needs to be adjusted, the fastening nut as the fastener 134 is first loosened. Secondly, since the first ball stud 124 can rotate relative to the first ball seat 122, the first ball stud 124 is rotated in a plane substantially perpendicular to the axial direction of the tie rod body 140 by using a wrench. The seat 122 does not move. Since the first ball stud 124 is threadedly connected with the tie rod body 140 , during the rotation process, the first ball stud 124 can move relative to the tie rod body 140 along the axial direction of the tie rod body 140 to approach or move away from the tie rod body 140 , thereby The distance between the first end 126 of the first ball stud 124 and the tie rod body 140 is changed. Since the first end 126 of the first ball stud 124 is connected to the first ball socket 122 , the distance between the first ball socket 122 and the second ball socket 152 is changed, and the overall length of the tie rod is changed. At this time, the position of the first ball socket 122 changes with the change of the overall length of the tie rod. Since the first ball socket 122 is fixed to the rocker arm 112 of the recirculating ball diverter, the rocker arm 112 of the recirculating ball diverter is driven to surround the input shaft 116 Rotate until the position of the recirculating ball diverter 110 reaches the desired position, stop rotating the first ball stud 124 and use the fastener 134 to lock the relative position of the first ball stud 124 and the tie rod body 140, thus completing the entire recirculating ball diverter 110 adjustment process.

The mechanical steering system 100 changes the relative positions of the first ball stud 124 and the first ball seat 122, so that the first ball seat 122 is fixedly connected to the recirculating ball steering gear rocker arm 112, and the first ball stud 124 is connected to the tie rod The body 140 can rotate relative to the first ball socket 122 with the help of the first ball stud 124, which not only meets the steering requirements of the automobile, but also adjusts the length of the tie rod without removing the tie rod when adjusting the recirculating ball steering gear 110 or the steering front wheel. It is convenient, and the debugging efficiency of the recirculating ball diverter 110 is improved.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. A mechanical steering system, characterized in that it comprises a recirculating ball diverter, a first ball joint assembly, a tie rod body, a second ball joint assembly and a steering rocker arm connected in sequence; the recirculating ball diverter comprises recirculating ball steering The first ball head assembly includes a first ball head seat and a first ball head pin, the first ball head seat is fixedly connected to the recirculating ball diverter rocker arm, and the first ball head pin The first end of the first ball stud is connected to the first ball socket and can rotate relative to the first ball socket, the second end of the first ball stud is connected to the tie rod body, and the second end can be relatively The tie rod body moves in the axial direction of the tie rod body. 2 . The mechanical steering system according to claim 1 , wherein the second end is threadedly connected to the tie rod body, and when the second end rotates relative to the tie rod body, the first end is threaded. 3 . away from or close to the tie rod body. 3 . The mechanical steering system according to claim 2 , wherein the second end is provided with an external thread, and the tie rod body is provided with an internal thread matched with the external thread. 4 . 4 . The mechanical steering system according to claim 3 , wherein the first ball stud comprises a screw, the screw is provided with the external thread, the tie rod body is provided with a screw hole, and the screw hole is provided with the screw hole. 5 . The internal thread and the screw are matched with the screw hole. 5 . The mechanical steering system according to claim 1 , wherein a fastener is provided at the connection between the first ball stud and the tie rod body, and the fastener is used to lock the first ball joint. 6 . The position of the pin relative to the tie rod body. 6 . The mechanical steering system according to claim 5 , wherein the fastener is a tightening nut, and the tightening nut is sleeved on the first ball stud. 7 . 7 . The mechanical steering system according to claim 1 , wherein the first ball stud is provided with a wrench bayonet, and the wrench bayonet is located between the first end and the second end. 8 . 8 . The mechanical steering system according to claim 1 , wherein the first end is a spherical end, and the spherical end is disposed in the first ball socket and can be inserted into the first ball socket. 9 . Internal rotation. 9 . The mechanical steering system of claim 8 , wherein the ball end is riveted to the first ball socket. 10 . 10 . The mechanical steering system according to claim 1 , wherein the second ball joint assembly comprises a second ball joint seat and a second ball joint pin, and one end of the second ball joint seat is fixedly connected to the In the tie rod body, the other end of the second ball socket is connected to the second ball pin, the second ball pin can rotate relative to the second ball socket, and the second ball pin is connected on the steering rocker arm.