CN216683949U

CN216683949U - Steering drive axle housing for steel plate spring suspension

Info

Publication number: CN216683949U
Application number: CN202123106850.4U
Authority: CN
Inventors: 经廷辉; 夏志; 余绪洋; 王文富
Original assignee: Luzhou Kishiler Engineering Technology Co ltd
Current assignee: Luzhou Kishiler Engineering Technology Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-07
Anticipated expiration: 2031-12-10

Abstract

The steering drive axle housing for the leaf spring suspension comprises a shell, wherein a leaf spring supporting seat is arranged on the upper surface of the shell, steering yoke forks are arranged at two ends of the shell, a hollow main pin sleeve is arranged on each steering yoke, a pin shaft is movably arranged in each main pin sleeve, and anti-rotation threaded holes communicated with inner holes of the main pin sleeves are formed in the main pin sleeves; compared with the traditional mode, the main pin sleeve is provided with the anti-rotation threaded hole, the position, corresponding to the anti-rotation threaded hole, of the pin shaft is provided with the plane, after the pin shaft and the main pin sleeve are assembled, the anti-rotation bolt is installed in the anti-rotation threaded hole and abuts against the plane of the pin shaft, the pin shaft is prevented from rotating in the main pin sleeve, and the pin shaft and the main pin sleeve are fixed. Therefore, even in the driving and steering process of the automobile, the pin shaft cannot rotate around the main pin sleeve, so that the pin shaft is ensured to be tightly matched with the main pin sleeve, the inner hole of the main pin sleeve is prevented from being galling, the possibility of fracture of the main pin sleeve is reduced, and the driving safety of the automobile is greatly improved.

Description

Steering drive axle housing for steel plate spring suspension

Technical Field

The utility model relates to the technical field of heavy axle machining, in particular to a steering drive axle housing for a leaf spring suspension.

Background

The axle housing is used for mounting a main speed reducer, a differential mechanism, a half shaft and a wheel assembly base body and is mainly used for supporting and protecting the main speed reducer, the differential mechanism, the half shaft and the like. Generally, a common non-break type drive axle housing is a rigid hollow beam supported on left and right drive wheels, wherein transmission members such as a main speed reducer, a differential mechanism, a half shaft and the like are all arranged, and the axle housing is connected with a frame or a carriage through a longitudinally arranged steel plate spring. It is an important component of the drive axle and one of the main components of the drive train.

The axle housing both ends of steering drive axle link to each other with the wheel limit assembly through the knuckle fork, have arranged the king pin cover in the knuckle fork, have arranged the round pin axle in the king pin cover. In the running and steering process of the automobile, the wheel edge assembly can rotate around the joint fork, and the pin shaft can rotate in the main pin sleeve because the pin shaft is movably connected with the main pin sleeve. Along with the extension of automobile driving time, the round pin axle can be napped the hole of king pin cover, leads to the hole size grow of king pin cover, and the hole laminating effect of round pin axle and king pin cover is not good, and then causes round pin axle and king pin cover collision, increases the cracked possibility of king pin cover, and what even more leads to serious traffic accident.

SUMMERY OF THE UTILITY MODEL

The utility model provides a steering drive axle housing for a steel plate spring suspension, aiming at the technical problem that the main pin sleeve and a pin shaft of the steering drive axle housing for the traditional steel plate spring suspension are movably connected to increase the possibility of breakage of the main pin sleeve.

The technical scheme adopted by the utility model is as follows: leaf spring suspension is with steering drive axle housing, which comprises a housin, the upper surface of casing is provided with the leaf spring supporting seat, is provided with first connecting hole on the leaf spring supporting seat, is provided with the distance rod support on the casing of leaf spring supporting seat below, and the casing middle part is provided with the bridge circle that links to each other with main reducer, and the casing both ends are provided with the knuckle fork, have arranged hollow king pin cover on the knuckle fork, and movable arrangement has the round pin axle in the king pin cover, be provided with the anti-rotation screw hole with king pin cover inner hole intercommunication on the king pin cover, prevent changeing threaded hole and be provided with anti-rotation bolt, the epaxial position that corresponds anti-rotation screw hole of round pin is provided with the plane. Compared with the traditional mode, the anti-rotation bolt is arranged in the anti-rotation threaded hole in the main pin sleeve, the plane is arranged on the pin shaft corresponding to the anti-rotation threaded hole, the anti-rotation bolt is arranged in the anti-rotation threaded hole after the pin shaft and the main pin sleeve are assembled, the anti-rotation bolt is abutted against the plane of the pin shaft, the pin shaft is prevented from rotating in the main pin sleeve, and the pin shaft and the main pin sleeve are fixed. Therefore, even in the driving and steering process of the automobile, the pin shaft cannot rotate around the main pin sleeve, so that the pin shaft is ensured to be tightly matched with the main pin sleeve, the inner hole of the main pin sleeve is prevented from being galling, the possibility of breakage of the main pin sleeve is reduced, and the driving safety of the automobile is greatly improved.

Further, the steel plate spring supporting seat is arranged on the shell in an embedded mode. The steel plate spring supporting seat is used for installing a steel plate spring, the steel plate spring is formed by overlapping a plurality of steel plates with unequal lengths and unequal curvatures, and two ends of the steel plate spring are naturally bent upwards after the steel plate spring supporting seat is installed. When the impact force of the road surface to the wheels is transmitted, the steel plate deforms to play the roles of buffering and vibration reduction, and the steel plate also has the function of guiding transmission when being longitudinally arranged. The non-independent suspension mostly adopts a steel plate spring as an elastic element, so that a guide device and a shock absorber can be omitted, and the structure is simple. With the embedded arrangement of leaf spring supporting seat on the axle housing, can increase the area of being connected of leaf spring supporting seat and axle housing, improve the stability of both connections. The steel plate spring supporting seat is in a semi-embedded type and is arranged at the top of the axle housing.

Furthermore, the steel plate spring supporting seat is connected with the shell in a welding mode, the steel plate spring supporting seat can be assembled on site in a welding mode, installation errors are reduced, and the welding has the advantages of being good in connection performance, good in integrity, large in structural rigidity, multiple in welding method types, simple, convenient and fast in welding process and the like.

Further, the first connection hole is inclined toward the housing center line. Traditional first connecting hole is vertical distribution in the leaf spring backup pad, therefore the road is all in vertical direction to the impact force and the reaction force of wheel, and it is poor to lead to the antidetonation effect, moreover along with the lapse of travel time, can reduce spring steel plate's intensity. Therefore, the first connecting hole is inclined towards the center line of the axle housing, and when the impact force of the road surface to the wheels is transmitted, the acting force is inclined, so that the acting force can be decomposed into a horizontal direction and a vertical direction, the impact force in the vertical direction is reduced, the cushioning and anti-seismic effects can be effectively realized, the comfort level of drivers and passengers is ensured, and the carrying capacity and the anti-seismic force of a vehicle are improved; in addition, the length of the first connecting hole has been increased to the first connecting hole of slope, can effectively improve the fastening force of bolt.

Further, the first connecting hole is inclined at an angle of 6 ° toward the axle housing centerline. If the inclination angle is too large, the component force in the horizontal direction is too large, and the axle housing is damaged; the corresponding anti-seismic effect cannot be achieved when the inclination angle is too small; for this reason, the present invention is preferably 6 °.

Furthermore, a limiting block is arranged on the side face, close to the shell, of the steering yoke, and in order to prevent the tires from exceeding a limit steering angle when the automobile steers.

Further, an upper support is arranged in the middle of the shell, and a second connecting hole is formed in the upper support. The axle housing is connected with the frame bolt through a second connecting hole in the upper support, so that the dislocation deformation of the power input end in the driving process is reduced.

Further, the shell is provided with an inductor which is used for controlling the power cylinder arranged on the axle housing to normally work and feeding back the relevant information of the power cylinder to the instrument panel.

Further, the master pin bushing is inclined toward the middle of the housing. The inner inclination angle of the main pin sleeve can enable the automobile to turn conveniently when the automobile turns to run, reduce impact force and reduce unnecessary automobile maintenance, and meanwhile, the inner inclination angle has a certain automatic tire aligning effect, the larger the angle is, the stronger the automatic aligning effect is, but the harder the automobile turns to, and the abrasion of the tire is large.

Furthermore, the inclination angle of the main pin sleeve is 5-7 degrees.

The utility model has the beneficial effects that:

1. according to the utility model, the anti-rotation threaded hole is formed in the knuckle fork, the plane is formed in the position, corresponding to the anti-rotation threaded hole, of the pin shaft, the anti-rotation bolt is installed in the anti-rotation threaded hole after the pin shaft and the main pin sleeve are assembled, and the anti-rotation bolt is abutted against the plane of the pin shaft, so that the pin shaft is prevented from rotating in the main pin sleeve, and the pin shaft and the main pin sleeve are fixed. Therefore, even in the driving and steering process of the automobile, the pin shaft cannot rotate around the main pin sleeve, so that the pin shaft is ensured to be tightly matched with the main pin sleeve, the inner hole of the main pin sleeve is prevented from being galling, the possibility of breakage of the main pin sleeve is reduced, and the driving safety of the automobile is greatly improved.

2. The first connecting holes are inclined towards the center line of the axle housing, and when the impact force of the road surface to the wheels is transmitted, the acting force is inclined, so that the acting force can be decomposed into the horizontal direction and the vertical direction, the impact force in the vertical direction is reduced, the cushioning and anti-seismic effects can be effectively realized, the comfort level of drivers and passengers is ensured, and the bearing capacity and the anti-seismic force of a vehicle are improved; in addition, the length of the first connecting hole has been increased to the first connecting hole of slope, can effectively improve the fastening force of bolt.

3. The axle housing is connected with the frame through the second connecting hole in the upper support, so that the dislocation deformation of the power input end in the driving process is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the first embodiment.

Fig. 2 is a top view of fig. 1.

Fig. 3 is a schematic structural view of the housing.

Fig. 4 is a top view of fig. 3.

Fig. 5 is a cross-sectional view of E-E in fig. 3.

Labeled as:

1. a housing; 2. a steel plate spring supporting seat; 3. a thrust rod support; 4. a steering yoke; 5. a king pin sleeve; 6. a limiting block; 7. an upper support; 8. an inductor; 9. a bridge ring; 10. a housing centerline;

101. a wheel edge assembly; 102. a crank arm; 103. a booster cylinder; 104. a booster cylinder base; 105. a middle position oil cylinder; 106. a middle position oil cylinder seat; 107. a tie rod;

201. a first connection hole; 401. anti-rotation threaded holes; 701. and a second connection hole.

Detailed Description

In the description of the present invention, it should be noted that the terms "front", "upper", "lower", "left", "right", "vertical", "horizontal", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The utility model is further described below with reference to the accompanying drawings.

Example one

Referring to fig. 1, 2, 3 and 4, the steering drive axle housing for the leaf spring suspension comprises a housing 1, a leaf spring support seat 2 is arranged on the upper surface of the housing 1, a first connection hole 201 is formed in the leaf spring support seat 2, a thrust rod support 3 is arranged on the housing 1 below the leaf spring support seat 2, an axle ring 9 connected with a main reducer is arranged in the middle of the housing 1, knuckle forks 4 are arranged at two ends of the housing 1, a hollow main pin sleeve 5 is arranged on the knuckle forks 4, a pin shaft (not shown in the figure) is movably arranged in the main pin sleeve 5, an anti-rotation threaded hole 401 communicated with an inner hole of the main pin sleeve 5 is formed in the main pin sleeve 5, an anti-rotation bolt is arranged in the anti-rotation threaded hole 401, and a plane (not shown in the figure) is arranged on the pin shaft corresponding to the anti-rotation threaded hole. The two ends of the shell are connected with the wheel edge assemblies through the steering knuckle forks, and the wheel edge assemblies on the two sides of the shell are connected with the tie rods through the connecting levers in sequence. Compared with the traditional mode, the anti-rotation threaded hole is formed in the steering knuckle fork, the plane is arranged on the pin shaft corresponding to the anti-rotation threaded hole, the anti-rotation bolt is installed in the anti-rotation threaded hole after the pin shaft and the main pin sleeve are assembled, the anti-rotation bolt is abutted against the plane of the pin shaft, the pin shaft is prevented from rotating in the main pin sleeve, and the pin shaft and the main pin sleeve are fixed. Therefore, even in the driving and steering process of the automobile, the pin shaft cannot rotate around the main pin sleeve, so that the pin shaft is ensured to be tightly matched with the main pin sleeve, the inner hole of the main pin sleeve is prevented from being galling, the possibility of breakage of the main pin sleeve is reduced, and the driving safety of the automobile is greatly improved.

During the running of the vehicle, the power output of the wheels is from a main speed reducer (not shown in the figure) arranged on the bridge ring 9 and a transmission shaft (not shown in the figure) arranged in the shell 1, and the wheels are driven to rotate; the steering power of the vehicle is from a middle oil cylinder 105 and a power-assisted oil cylinder 103, the middle oil cylinder 105 and the power-assisted oil cylinder 103 drive a crank arm 102 to rotate, and then the wheels are driven to steer; tie rods 107 connected between the two crank arms 102 ensure that the wheels at the two ends of the axle housing turn synchronously.

Referring to fig. 1 and 5, the present embodiment disposes the leaf spring support base 2 on the case 1 in an embedded manner. The steel plate spring supporting seat is used for installing a steel plate spring, the steel plate spring is formed by overlapping a plurality of steel plates with unequal lengths and unequal curvatures, and two ends of the steel plate spring are naturally bent upwards after the steel plate spring supporting seat is installed. When the impact force of the road surface to the wheels is transmitted, the steel plate deforms to play the roles of buffering and vibration reduction, and the steel plate also has the function of guiding transmission when being longitudinally arranged. The non-independent suspension mostly adopts a steel plate spring as an elastic element, so that a guide device and a shock absorber can be omitted, and the structure is simple. With the embedded arrangement of leaf spring supporting seat on the axle housing, can increase the area of being connected of leaf spring supporting seat and axle housing, improve the stability of both connections. The steel plate spring supporting seat is in a semi-embedded type and is arranged at the top of the axle housing.

The steel plate spring supporting seat 2 and the shell 1 are connected in a welding mode, the steel plate spring supporting seat can be assembled on site in a welding mode, installation errors are reduced, and the steel plate spring supporting seat has the advantages of being good in connection performance, good in integrity, large in structural rigidity, multiple in welding method types, simple, convenient and fast in welding process and the like.

Referring to fig. 2, in the present embodiment, a limit block 6 is disposed on a side surface of the steering yoke 4 close to the housing, in order to prevent the tire from exceeding a limit steering angle when the vehicle is steered.

Referring to fig. 1, the present embodiment is provided with an upper holder 7 at a middle portion of a case 1, and a second coupling hole 701 is provided on the upper holder 7. The axle housing is connected with the frame bolt through a second connecting hole in the upper support, so that the dislocation deformation of the power input end in the driving process is reduced.

Referring to fig. 1, the present embodiment is provided with an inductor 8 on a housing 1 for controlling the normal operation of a power cylinder mounted on an axle housing and feeding back information related to the power cylinder to an instrument panel.

Referring to fig. 1 and 3, the master pin boss 5 of the present embodiment is inclined toward the middle of the housing 1, and the internal inclination angle of the master pin boss 5 is 5 °. The inner inclination angle of the main pin sleeve can enable the automobile to turn conveniently when the automobile turns to run, reduce impact force and reduce unnecessary automobile maintenance, and meanwhile, the inner inclination angle has a certain automatic tire aligning effect, the larger the angle is, the more powerful the automatic aligning effect is, but the harder the automobile turns to, and the abrasion of the tire is large.

Example two

Referring to fig. 4 and 5, on the basis of the first embodiment, the first connection hole 201 of the present embodiment is inclined toward the housing center line 10. Traditional first connecting hole is vertical distribution in the leaf spring backup pad, therefore the road is all in vertical direction to the impact force and the reaction force of wheel, and it is poor to lead to the antidetonation effect, moreover along with the lapse of travel time, can reduce spring steel plate's intensity. Therefore, the first connecting hole is inclined towards the center line of the axle housing, and when the impact force of the road surface to the wheels is transmitted, the acting force is inclined, so that the acting force can be decomposed into a horizontal direction and a vertical direction, the impact force in the vertical direction is reduced, the cushioning and anti-seismic effects can be effectively realized, the comfort level of drivers and passengers is ensured, and the carrying capacity and the anti-seismic force of a vehicle are improved; in addition, the length of the first connecting hole has been increased to the first connecting hole of slope, can effectively improve the fastening force of bolt.

Referring to fig. 5, the first connection hole 201 of the present embodiment is inclined at an angle α of 6 ° toward the housing center line 10. If the inclination angle is too large, the component force in the horizontal direction is too large, and the axle housing is damaged; the corresponding anti-seismic effect cannot be achieved when the inclination angle is too small; for this reason, the present invention is preferably 6 °.

The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A steering drive axle housing for a leaf spring suspension comprises a shell (1), wherein a leaf spring supporting seat (2) is arranged on the upper surface of the shell (1), a first connecting hole (201) is formed in the leaf spring supporting seat (2), a thrust rod support (3) is arranged on the shell (1) below the leaf spring supporting seat (2), an axle ring (9) connected with a main speed reducer is arranged in the middle of the shell (1), steering knuckle forks (4) are arranged at two ends of the shell (1), a hollow main pin sleeve (5) is arranged on each steering knuckle fork (4), a pin shaft is movably arranged in each main pin sleeve (5), the anti-rotation bolt is characterized in that an anti-rotation threaded hole (401) communicated with an inner hole of the kingpin sleeve (5) is formed in the kingpin sleeve (5), an anti-rotation bolt is arranged in the anti-rotation threaded hole (401), and a plane is arranged on the pin shaft corresponding to the anti-rotation threaded hole.

2. A steering axle housing for a leaf spring suspension according to claim 1, characterised in that the leaf spring support (2) is arranged flush on the housing (1).

3. A steering axle housing for a leaf spring suspension according to claim 1, characterised in that the leaf spring support (2) is connected to the housing (1) by welding.

4. A steering axle housing for a leaf spring suspension according to claim 1, characterised in that the first connecting hole (201) is inclined towards the housing centre line (10).

5. A steer drive axle housing for leaf spring suspensions according to claim 4, wherein said first connection aperture (201) is inclined at an angle of 6 ° to the housing centre line (10).

6. A steering axle housing for a leaf spring suspension according to claim 1, characterised in that the side of the steering yoke (4) adjacent to the housing is provided with a stop (6).

7. A steering axle housing for a leaf spring suspension according to claim 1, characterised in that the housing (1) is provided with an upper support (7) in the middle and the upper support (7) is provided with a second connecting hole (701).

8. A steering axle housing for a leaf spring suspension according to claim 1, characterised in that an inductor (8) is provided on the housing (1).

9. A steer drive axle housing for leaf spring suspensions according to claim 1, characterised in that the king pin boss (5) is inclined towards the middle of the housing (1).

10. A steering axle housing for a leaf spring suspension according to claim 9, characterised in that the castor angle of the kingpin bush (5) is 5 ° to 7 °.