A mounting bracket of a steering gear and a commercial vehicle

Abstract

The utility model discloses a kind of installation support of steering gear and commercial vehicle, including the left and right sides of the frame end mounting body are formed with several longitudinal arrangement frame bolt mounting hole, to be installed on frame by mounting bolt with installation support;Steering gear end mounting body is formed with several steering gear bolt mounting hole, to be installed on installation support by mounting bolt with steering gear;Intermediate connecting body connects frame end mounting body and steering gear end mounting body, and make the steering gear end mounting body be elevated relative to the frame end mounting body, to form hollow basin cavity structure with frame end mounting body;Frame end mounting body is formed with the avoidance hole for avoiding steering gear output shaft and steering rocker arm;And installation support inside and side wall are provided with several reinforcing ribs.The installation support can adapt to new arrangement environment such as frame widening, cab forward movement, while considering the problem of structural strength, lightweight and motion clearance requirement.

Description

Technical Field

[0001] This utility model relates to the field of commercial vehicle technology, specifically, to a steering gear mounting bracket and a commercial vehicle. Background Technology

[0002] As a crucial component of the steering system, the steering gear bracket connects the steering gear to the vehicle frame. It must ensure structural strength and rigidity while also prioritizing lightweight design. During vehicle development, the positioning of the steering gear is paramount. It must guarantee that steering interference remains within a reasonable range while considering its relationship with the cab, steering column, and other structural elements. This is especially critical when installation space is limited, making the rational design of the steering gear bracket particularly important.

[0003] The widening of the chassis compresses the distance of the steering gear bracket in the Y direction; the forward movement of the cab alters the positional relationship between the steering gear and the steering column in the X direction. Therefore, the design of the steering gear bracket needs to consider these two changes while ensuring that steering interference remains within a reasonable design range, meaning the positioning of the steering gear bracket in the Z direction must be considered. The steering rocker arm is mounted on the steering gear output shaft. Generally, the space for arranging the steering rocker arm and steering gear bracket is limited. Therefore, the design of the steering gear bracket must also prioritize ensuring a safe clearance with the steering rocker arm and steering gear output shaft. Within this limited and variable installation space, traditional steering gear bracket structures often cannot simultaneously meet the comprehensive requirements of strength, rigidity, lightweight design, and precise avoidance and positioning, especially in ensuring a consistently safe and reliable clearance between the steering rocker arm and steering gear output shaft. Utility Model Content

[0004] To address the aforementioned technical problems, the present invention aims to provide a steering gear mounting bracket and a commercial vehicle that can adapt to the new vehicle layout environment, achieve lightweighting while possessing excellent mechanical properties, and accurately solve the interference and positioning problems caused by changes in layout space.

[0005] The present invention solves the above problems through the following technical solution:

[0006] A steering gear mounting bracket includes: a frame-end mounting body, a steering gear-end mounting body, and an intermediate connecting body; the frame-end mounting body has a plurality of longitudinally arranged frame bolt mounting holes on its left and right sides, so as to mount the mounting bracket to the frame with mounting bolts; the steering gear-end mounting body has a plurality of steering gear bolt mounting holes, so as to mount the steering gear to the mounting bracket with mounting bolts; the intermediate connecting body connects the frame-end mounting body and the steering gear-end mounting body, and raises the steering gear-end mounting body relative to the frame-end mounting body, thereby forming a hollow basin-shaped cavity structure together with the frame-end mounting body; the frame-end mounting body has clearance holes for avoiding the steering gear output shaft and the steering rocker arm; and the mounting bracket has a plurality of reinforcing ribs inside and on its sides.

[0007] As a further improvement of this utility model, the steering gear bolt mounting holes on the steering gear end mounting body are distributed in a triangular pattern, and the number of steering gear bolt mounting holes on the left side is greater than that on the right side.

[0008] As a further improvement of this utility model, the steering gear bolt mounting holes are arranged in three longitudinal positions on the left side and one on the right side.

[0009] As a further improvement of this utility model, a weight reduction groove is provided in the middle of the steering gear end mounting body. The weight reduction groove is located between the steering gear bolt mounting holes provided on the left and right sides, and a circular weight reduction hole is formed in the weight reduction groove.

[0010] As a further improvement of this utility model, a clearance groove is formed on the lower right part of the frame end mounting body, and a circular clearance hole is formed on the clearance groove.

[0011] As a further improvement of this utility model, the intermediate connecting body connecting the steering gear end mounting body and the clearance groove has a first outer contour and a second outer contour, so as to ensure the gap with the steering rocker arm through the first outer contour and the second outer contour.

[0012] As a further improvement of this utility model, the intermediate connecting body is further provided with a plurality of mounting platforms, including a first mounting platform on the left side and a second mounting platform on the rear side, and both the first mounting platform and the second mounting platform are provided with threaded holes.

[0013] As a further improvement of this utility model, the upper left end, the upper right end, and the lower end of the frame end mount are all smoothly connected to the intermediate connector through bevel and arc transitions; and / or the mounting surface of the frame bolt mounting hole on the right side of the frame end mount is raised and smoothly transitions with the intermediate connector.

[0014] As a further improvement of this utility model, the mounting bracket of the steering gear is integrally cast from ductile iron.

[0015] Furthermore, this utility model also solves the above problems through the following technical solutions:

[0016] A commercial vehicle includes a frame, a steering gear, and a mounting bracket for the steering gear as described above. The mounting bracket is fixed to the frame by mounting bolts, and the steering gear is fixed to the mounting bracket for the steering gear by mounting bolts.

[0017] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0018] (1) This utility model achieves lightweight structure by combining basin-shaped cavity structure, internal and external reinforcing ribs and high-strength ductile iron material, and ensures that the mounting bracket has sufficient strength and rigidity to withstand the complex load brought by the steering system.

[0019] (2) This utility model flexibly adjusts the installation position of the steering gear in the X, Y, and Z directions by raising the intermediate connecting body, adapting to the layout of the new frame and cab. The clearance hole and the outer contour design ensure a safe movement clearance with the steering rocker arm and output shaft, avoiding movement interference.

[0020] (3) This utility model further achieves lightweighting through weight reduction holes and weight reduction grooves; it effectively reduces stress concentration and improves fatigue life through smooth chamfer and arc transitions; and it achieves multi-functional integration and simplifies the overall vehicle layout by setting several mounting platforms on the intermediate connecting body. Attached Figure Description

[0021] Figure 1 This is a front view of the completed installation of the mounting bracket for a steering gear according to this utility model;

[0022] Figure 2 This is a schematic diagram of the bottom surface of the installation bracket for a steering gear according to this utility model after installation;

[0023] Figure 3 This is a three-dimensional schematic diagram of the installation of a steering gear mounting bracket according to the present invention.

[0024] Figure 4 This is a schematic diagram of the structure of a steering gear mounting bracket according to the present invention;

[0025] Figure 5 This is a schematic diagram of the bottom surface of a steering gear mounting bracket according to the present invention;

[0026] Figure 6 This is a three-dimensional schematic diagram of a steering gear mounting bracket according to the present invention;

[0027] Figure 7 This is a side view of a steering gear mounting bracket according to the present invention;

[0028] Figure 8 This is a schematic diagram showing the positions of the first and second mounting platforms of the mounting bracket of this utility model.

[0029] Reference numerals: 1. Frame end mount; 2. Steering gear end mount; 3. Intermediate connector; 4. Clearance hole; 5. Clearance groove; 6. Weight reduction hole; 7. Weight reduction groove; 8. First reinforcing rib; 9. Second reinforcing rib; 10. Third reinforcing rib; 11. First outer contour; 12. Second outer contour; 13. Fourth reinforcing rib; 14. Fifth reinforcing rib; 15. Sixth reinforcing rib; 16. First mounting platform; 17. Second mounting platform; 18. Upper left side of frame end mount; 19. Upper right side of frame end mount; 20. Lower side of frame end mount; 111. Frame; 112. Mounting bracket; 113. Mounting bolt; 114. Steering gear; 115. Steering rocker arm. Detailed Implementation

[0030] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Example:

[0032] Combined with appendix Figure 1-8 As shown, a steering gear mounting bracket 112 includes: a frame-end mounting body 1, a steering gear-end mounting body 2, and an intermediate connecting body 3 connecting the frame-end mounting body 1 and the steering gear-end mounting body 2. The steering gear-end mounting body 2 is raised by the intermediate connecting body 3 so that the mounting bracket forms a basin-shaped cavity structure. The frame-end mounting body 1 has a plurality of longitudinally arranged frame bolt mounting holes on its left and right sides, so that the mounting bracket can be installed on the frame 111 by mounting bolts 113. The steering gear-end mounting body 2 has a plurality of triangular steering gear bolt mounting holes, with more steering gear bolt mounting holes on the left side than on the right side, so that the steering gear 114 can be installed on the mounting bracket by mounting bolts 113.

[0033] Specifically, the steering gear bolt mounting holes on the steering gear end mount 2 are arranged with three longitudinal holes on the left and one on the right; a weight reduction groove 7 is formed in the middle of the steering gear end mount 2, and a circular weight reduction hole 6 is formed inside the weight reduction groove 7. A clearance groove 5 is formed on the frame end mount 1 at the lower right of the steering gear end mount 2. The clearance groove 5 is for avoiding the frame mounting bolts and also for weight reduction; and a circular clearance hole 4 is formed on the clearance groove 5 to avoid the rotation shaft of the steering rocker arm 115 of the steering gear 114, ensuring no interference with the steering gear output shaft and the steering rocker arm, while also reducing weight. The intermediate connecting body 3 connecting the steering gear end mounting body 2 and the clearance groove 5 has a first outer contour 11 and a second outer contour 12. The intermediate connecting body 3 ensures the clearance requirement with the steering rocker arm through the reasonable first outer contour 11 and second outer contour 12. The second outer contour 12 extends downward to connect with the frame end mounting body 1, which strengthens the overall mounting bracket and also has an aesthetic effect.

[0034] Preferably, a first mounting platform 16 is formed on the intermediate connecting body 3 connecting the left side of the steering gear end mounting body 2 and the frame end mounting body 1, and two second mounting platforms 17 are formed on the intermediate connecting body 3 connecting the rear side of the steering gear end mounting body 2 and the frame end mounting body 1. Both the first mounting platform 16 and the second mounting platform 17 have threaded holes at the top and bottom for mounting related brackets, achieving functional integration, and also reinforcing the mounting brackets.

[0035] The entire mounting bracket is cast from ductile iron, and the mounting surfaces and bolt holes are machined to ensure both structural strength and rigidity while achieving a lightweight design. The overall shape of the steering bracket is also smooth and aesthetically pleasing. The upper left side 18, upper right side 19, and lower side 20 of the frame-end mounting body 1 are connected to the intermediate connecting body 3 via bevels and rounded edges, respectively, providing a smooth transition and ensuring the strength of the connection while reducing stress concentration. Preferably, the mounting surfaces of the three frame bolt mounting holes on the right side of the frame-end mounting body 1 are raised and smoothly transition to the intermediate connecting body 3 to further ensure the strength of the connection and reduce stress concentration.

[0036] The steering gear mounting body 2 is adjusted in the Z direction (vertical / horizontal), X direction (left / right), and Y direction (forward / backward) to meet the layout requirements of the steering gear. Specifically, the steering gear mounting body 2 is adjusted to the left in the X direction, raised in the Z direction, and compressed in the Y direction to ensure its layout with the cab and chassis.

[0037] In an optional embodiment, the intermediate connector 3 is a hollow structure to reduce weight. The mounting bracket features reinforced internal and side panels, resulting in a small size and compact structure. Specifically, a first reinforcing rib 8 is formed outside the steering gear bolt mounting hole on the right side of the mounting bracket, a second reinforcing rib 9 is formed outside the weight-reducing hole, and a third reinforcing rib 10 is formed outside the steering gear bolt mounting hole on the left side to ensure strength. The first and second reinforcing ribs 8 and 9 extend to the end face of the frame-end mounting body 1 to provide support and reinforcement for the overall structure of the mounting bracket. The third reinforcing rib 10 provides support and reinforcement for the connection between the frame-end mounting body 1 and the intermediate connector 3. The side panels of the mounting bracket have several fourth reinforcing ribs 13, fifth reinforcing ribs 14, and sixth reinforcing ribs 15, which strengthen the structural strength of the mounting bracket.

[0038] In one specific embodiment, a commercial vehicle includes a frame 111, a steering gear 114, and a mounting bracket 112 as described above. The mounting bracket 112 is fixed to the frame 111 by mounting bolts, and the steering gear 114 is fixed to the mounting bracket 112 of the steering gear by mounting bolts.

[0039] Although the present invention has been described herein with reference to illustrative embodiments, the above embodiments are merely preferred embodiments of the present invention, and the implementation of the present invention is not limited to the above embodiments. It should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in this application.

Claims

1. A mounting bracket for a steering gear, characterized in that, include: Frame end mount, steering gear end mount, and intermediate connector; The frame end mount has several longitudinally arranged frame bolt mounting holes on its left and right sides, so that the mounting bracket can be installed on the frame by mounting bolts; the steering gear end mount has several steering gear bolt mounting holes, so that the steering gear can be installed on the mounting bracket by mounting bolts; the intermediate connecting body connects the frame end mount and the steering gear end mount, and raises the steering gear end mount relative to the frame end mount, thereby forming a hollow basin-shaped cavity structure together with the frame end mount; The frame end mount has clearance holes for avoiding the steering gear output shaft and steering rocker arm; and the mounting bracket has several reinforcing ribs inside and on the side.

2. The mounting bracket for a steering gear according to claim 1, characterized in that, The steering gear bolt mounting holes on the steering gear end mount are arranged in a triangular pattern, with more steering gear bolt mounting holes on the left side than on the right side.

3. The mounting bracket for a steering gear according to claim 2, characterized in that, The steering gear bolt mounting holes are arranged in three longitudinal positions on the left side and one on the right side.

4. The mounting bracket for a steering gear according to claim 2, characterized in that, A weight-reducing groove is provided in the middle of the steering gear end mounting body. The weight-reducing groove is located between the steering gear bolt mounting holes on the left and right sides, and a circular weight-reducing hole is formed in the weight-reducing groove.

5. The mounting bracket for a steering gear according to claim 1, characterized in that, A clearance groove is formed on the lower right part of the frame end mount, and a circular clearance hole is formed on the clearance groove.

6. The mounting bracket for a steering gear according to claim 5, characterized in that, The intermediate connecting body that connects the steering gear end mount and the clearance groove has a first outer contour and a second outer contour to ensure the clearance with the steering rocker arm through the first outer contour and the second outer contour.

7. The mounting bracket for a steering gear according to claim 1, characterized in that, The intermediate connecting body also has several mounting platforms, including a first mounting platform on the left side and a second mounting platform on the rear side, both of which are provided with threaded holes.

8. The mounting bracket for a steering gear according to claim 1, characterized in that, The upper left end, upper right end, and lower end of the frame end mount are all smoothly connected to the intermediate connector through bevel and arc transitions. And / or the mounting surface of the frame bolt mounting hole on the right side of the frame end mount is raised and smoothly transitions with the intermediate connector.

9. The mounting bracket for a steering gear according to claim 1, characterized in that, The steering gear mounting bracket is made of ductile iron.

10. A commercial vehicle, characterized in that, The system includes a vehicle frame, a steering gear, and a mounting bracket for the steering gear as described in any one of claims 1-9, wherein the mounting bracket is fixed to the vehicle frame by mounting bolts, and the steering gear is fixed to the mounting bracket for the steering gear by mounting bolts.

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