A tractor integrated suspension steering axle

Abstract

The present invention discloses an integrated suspension steering axle for a tractor, comprising: a steering axle, a leaf spring, a suspension shock absorber, a first mounting bracket and a second mounting bracket for horizontally fixing the leaf spring on the steering axle, two first mounting brackets are symmetrically arranged on the steering axle, and a second mounting bracket is vertically arranged on the side of each first mounting bracket, and the two leaf springs are used to connect with the bottom of the frame, one end of the suspension shock absorber is fixed on the second mounting bracket, and the other end is connected to the side of the frame. By using this device, the bottom of the frame can achieve shock absorption operation through the leaf spring, and the side of the frame can achieve shock absorption operation through the suspension shock absorber. This device integrates two shock absorption forms of leaf spring and suspension shock absorber, which can effectively reduce the impact force on the vehicle, reduce the vibration phenomenon of the vehicle, and improve the driving comfort of the vehicle.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle assembly, and more particularly to an integrated suspension steering axle of a tractor. Background Art

[0002] In the prior art, the bridge body of the steering axle is usually in an H-shaped shape, and the bridge body is large. The steering axle usually includes a steering axle body, a double-tie arm steering knuckle arranged on one side of the steering axle body, a single-tie arm steering knuckle arranged on the other side of the steering axle body, and wheel hubs respectively installed on the outer side of the double-tie arm steering knuckle and the outer side of the single-tie arm steering knuckle, and the double-tie arm steering knuckle and the single-tie arm steering knuckle are connected by a transverse tie rod. Moreover, the steering axle body and the frame are generally connected by a simple leaf spring or a rubber block. During the driving or steering process of the vehicle, the steering axle and the vehicle body are prone to collision, resulting in greater vehicle vibration and lower driving comfort.

[0003] In summary, how to reduce the vibration of a vehicle is a problem that needs to be solved urgently by those skilled in the art. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a tractor-mounted integrated suspension steering axle, which can effectively reduce the impact force on the vehicle, reduce the vibration of the vehicle, and improve the driving comfort of the vehicle.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A tractor integrated suspension steering axle comprises: a steering axle, a leaf spring, a suspension shock absorber, a first mounting bracket and a second mounting bracket for horizontally fixing the leaf spring on the steering axle, two first mounting brackets are symmetrically arranged on the steering axle, the side of each first mounting bracket is vertically provided with the second mounting bracket, the two leaf springs are used to be connected to the bottom of the frame, one end of the suspension shock absorber is fixed to the second mounting bracket, and the other end is connected to the side of the frame.

[0007] Preferably, the steering axle comprises a horizontally arranged round steel pipe, a left mounting arm arranged at the left end of the round steel pipe, a right mounting arm arranged at the right end of the round steel pipe, a left steering knuckle connected to the left mounting arm, a right steering knuckle connected to the right mounting arm, a steering rocker arm and a tie rod for controlling the steering of the steering axle;

[0008] The left steering knuckle and the right steering knuckle are both used to connect with wheels, the steering rocker arm is arranged on the left steering knuckle, and the ball head of the left steering knuckle and the ball head of the left steering knuckle are respectively connected with the ends of the tie rod.

[0009] Preferably, the first mounting bracket includes a mounting plate, a pressure plate, a U-shaped bolt and a fastener horizontally arranged on the top of the round steel pipe fitting, the mounting plate and the pressure plate are correspondingly provided with through holes for passing the U-shaped bolts, the leaf spring is clamped between the mounting plate and the pressure plate, and the fastener is used to lock the pressure plate onto the leaf spring.

[0010] Preferably, the second mounting bracket includes a connecting portion connected to the mounting plate, a vertical portion vertically connected to the connecting portion, and a horizontal portion arranged on the top of the vertical portion, the horizontal portion is provided with a pin shaft for fixing the suspension shock absorber and a limit plate for abutting against a rubber limit block of the frame, and the pin shaft and the limit plate are arranged in parallel.

[0011] Preferably, a notch is provided at a position of the vertical portion corresponding to the steering rocker arm.

[0012] Preferably, ribs are provided on both sides of the connection portion, and the ribs are fitted to the outer circumference of the round steel pipe.

[0013] Preferably, the mounting position of the mounting plate is lower than the center axis position of the wheel.

[0014] Preferably, the ends of the left mounting arm and the right mounting arm are both provided with a first step, and both ends of the round steel pipe are both provided with a receiving groove for installing the first step.

[0015] Preferably, the end of the suspension shock absorber is a conical structure, and rubber sleeves are fitted on both sides of the conical structure. The pin shaft is provided with a second step along the axial direction, one end of the rubber sleeve can be inserted into the pin shaft and abut against the second step, and the other end of the rubber sleeve is provided with a washer and a locking nut.

[0016] Preferably, the first mounting bracket and the second mounting bracket are fixed by welding, and the first mounting bracket is welded on the steering axle.

[0017] When using the tractor integrated suspension steering axle provided by the present invention, the leaf spring can be installed on the steering axle using the first mounting bracket, and then the second mounting bracket can be vertically mounted on the side of the first mounting bracket. After that, the bottom of the frame can be fixedly mounted on the two leaf springs, and then one end of the suspension shock absorber can be fixed on the second mounting bracket, and the other end of the suspension shock absorber is connected to the side of the frame. Therefore, the bottom of the frame can achieve shock absorption operation through the leaf spring, and the side of the frame can achieve shock absorption operation through the suspension shock absorber. The device effectively integrates two shock absorption forms of leaf springs and suspension shock absorbers, which can effectively reduce the impact force on the vehicle, reduce the vibration phenomenon of the vehicle, and improve the driving comfort of the vehicle.

[0018] In summary, the tractor integrated suspension steering axle provided by the present invention can effectively reduce the impact force on the vehicle, weaken the vibration of the vehicle, and improve the driving comfort of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 This is a schematic diagram of the structure of the integrated suspension steering axle of the tractor provided by the present invention;

[0021] Figure 2 It is a schematic diagram of the assembly of the steering axle, the first mounting bracket and the second mounting bracket;

[0022] Figure 3 It is a disassembled schematic diagram of the steering axle, the first mounting bracket and the second mounting bracket;

[0023] Figure 4 It is a schematic diagram of the assembly of the suspension shock absorber and the second mounting bracket;

[0024] Figure 5 This is a schematic diagram of the structure after the suspension shock absorber and pin are assembled.

[0025] Figure 1-Figure 5 middle:

[0026] 1 is a steering axle, 2 is a leaf spring, 3 is a suspension shock absorber, 4 is a first mounting bracket, 5 is a second mounting bracket, 6 is a round steel pipe, 7 is a left mounting arm, 8 is a right mounting arm, 9 is a left steering knuckle, 10 is a right steering knuckle, 11 is a steering rocker arm, 12 is a tie rod, 13 is a mounting plate, 14 is a pressure plate, 15 is a U-bolt, 16 is a connecting part, 17 is a vertical part, 18 is a horizontal part, 19 is a pin, 20 is a rubber limit block, 21 is a limit plate, 22 is a notch, 23 is a rib plate, 24 is a first step, 25 is a rubber sleeve, 26 is a second step, 27 is a washer, 28 is a spring washer, and 29 is a locking nut. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The core of the present invention is to provide a tractor integrated suspension steering axle, which integrates two shock-absorbing forms of leaf springs and suspension shock absorbers, which can effectively reduce the impact force on the vehicle, weaken the vibration of the vehicle, and improve the driving comfort of the vehicle.

[0029] Please refer to Figures 1 to 5 .

[0030] The present specific embodiment provides an integrated suspension steering axle of a tractor, comprising: a steering axle 1, a leaf spring 2, a suspension shock absorber 3, a first mounting bracket 4 and a second mounting bracket 5 for horizontally fixing the leaf spring 2 on the steering axle 1, two first mounting brackets 4 are symmetrically arranged on the steering axle 1, a second mounting bracket 5 is vertically arranged on the side of each first mounting bracket 4, two leaf springs 2 are used to be connected to the bottom of the frame, one end of the suspension shock absorber 3 is fixed to the second mounting bracket 5, and the other end is connected to the side of the frame.

[0031] In actual use, the shape, structure, size, material, position, etc. of the steering axle 1, leaf spring 2, suspension shock absorber 3, first mounting bracket 4 and second mounting bracket 5 can be determined according to actual conditions and actual needs.

[0032] When using the tractor integrated suspension steering axle provided by the present invention, the leaf spring 2 can be installed on the steering axle 1 using the first mounting bracket 4, and then the second mounting bracket 5 can be vertically mounted on the side of the first mounting bracket 4. After that, the bottom of the frame can be fixedly mounted on the two leaf springs 2, and then one end of the suspension shock absorber 3 can be fixed on the second mounting bracket 5, and the other end of the suspension shock absorber 3 is connected to the side of the frame. Therefore, the bottom of the frame can achieve shock absorption operation through the leaf spring 2, and the side of the frame can achieve shock absorption operation through the suspension shock absorber 3. The device integrates two shock absorption forms, the leaf spring 2 and the suspension shock absorber 3, which can effectively reduce the impact force on the vehicle, reduce the vibration phenomenon of the vehicle, and improve the driving comfort of the vehicle.

[0033] In summary, the tractor integrated suspension steering axle provided by the present invention can effectively reduce the impact force on the vehicle, weaken the vibration of the vehicle, and improve the driving comfort of the vehicle.

[0034] On the basis of the above embodiments, preferably, the steering axle 1 includes a horizontally arranged round steel pipe 6, a left mounting arm 7 arranged at the left end of the round steel pipe 6, a right mounting arm 8 arranged at the right end of the round steel pipe 6, a left steering knuckle 9 connected to the left mounting arm 7, a right steering knuckle 10 connected to the right mounting arm 8, a steering rocker arm 11 for controlling the steering of the steering axle 1, and a tie rod 12; the left steering knuckle 9 and the right steering knuckle 10 are both used to connect to the wheels, the steering rocker arm 11 is arranged on the left steering knuckle 9, and the ball head of the left steering knuckle 9 and the ball head of the left steering knuckle 9 are respectively connected to the ends of the tie rod 12.

[0035] It should be noted that the length of the round steel pipe 6 can be changed according to different vehicle models, and each component can be manufactured and assembled by casting and welding to save manufacturing costs and improve the versatility of the device and the strength of the bridge body. When a steering operation is required, the steering rocker arm 11 can be rotated to make the left steering knuckle 9 turn left or right. When the left steering knuckle 9 rotates, the tie rod 12 and the right steering knuckle 10 can be pulled to rotate in the same direction to achieve the steering operation.

[0036] In actual use, the shape, structure, size, material, position, etc. of the round steel pipe 6, the left mounting arm 7, the right mounting arm 8, the left steering knuckle 9, the right steering knuckle 10, the steering rocker arm 11 and the tie rod 12 can be determined according to actual conditions and actual needs.

[0037] Preferably, the first mounting bracket 4 includes a mounting plate 13, a pressure plate 14, a U-shaped bolt 15 and a fastener horizontally arranged on the top of the round steel pipe 6, the mounting plate 13 and the pressure plate 14 are respectively provided with through holes for passing the U-shaped bolt 15, the leaf spring 2 is clamped between the mounting plate 13 and the pressure plate 14, and the fastener is used to lock the pressure plate 14 on the leaf spring 2.

[0038] It should be noted that, first, the leaf spring 2 can be placed flat on the mounting plate 13, and then the pressure plate 14 can be pressed on the leaf spring 2. After that, the U-bolt 15 can be used to pass through the through holes of the mounting plate 13 and the pressure plate 14 from bottom to top, and finally, the U-bolt 15 can be inserted with a fastener to lock the pressure plate 14 on the leaf spring 2. A thread can be provided at one end of the U-bolt 15, and the fastener can include components such as a spring washer, a cotter pin, and a slotted nut, which can be used in conjunction with the U-bolt 15 to firmly press the pressure plate 14 on the leaf spring 2.

[0039] In actual use, the shape, structure, size, material, etc. of the mounting plate 13, the pressing plate 14, the U-bolt 15 and the fasteners can be determined according to actual conditions and actual needs.

[0040] Preferably, the second mounting bracket 5 includes a connecting portion 16 connected to the mounting plate 13, a vertical portion 17 vertically connected to the connecting portion 16, and a horizontal portion 18 arranged at the top of the vertical portion 17, the horizontal portion 18 is provided with a pin 19 for fixing the suspension shock absorber 3 and a limit plate 21 for abutting against a rubber limit block 20 of the frame, the pin 19 and the limit plate 21 are arranged in parallel, and the structure of the second mounting bracket 5 is as follows: Figure 2 and Figure 3 shown.

[0041] It should be noted that one end of the suspension shock absorber 3 can be installed on the pin 19, and the other end of the suspension shock absorber 3 can be installed on the pin of the frame, so that the suspension shock absorber 3 is suspended and placed, and the connection can be fixed by using spring washers, slotted nuts and other components.

[0042] It should also be noted that the limit plate 21 can collide with the rubber limit block 20 installed on the frame when the steering axle 1 is subjected to a severe impact, so as to prevent the steering axle 1 from colliding with the vehicle body due to excessive suspension deformation of the suspension shock absorber 3. That is, the limit plate 21 can protect the steering axle 1 when the steering axle 1 is subjected to a large impact force, so as to prevent the steering axle 1 from colliding with the vehicle body.

[0043] Preferably, a notch 22 is provided at the position of the vertical portion 17 corresponding to the steering rocker arm 11, and the notch 22 can create space for the rotation of the steering rocker arm 11. The steering rocker arm 11 can be arranged in the middle of the whole bridge to make the whole bridge smaller and more compact.

[0044] Preferably, ribs 23 are provided on both sides of the connection portion 16 , and the ribs 23 are in contact with the outer circumference of the round steel pipe 6 . The provision of the ribs 23 is beneficial to improving the bridge body strength and manufacturing accuracy of the steering bridge 1 .

[0045] In actual use, the shape, structure, size, material, position, etc. of the connecting portion 16, the vertical portion 17, the horizontal portion 18, the pin 19, the limiting plate 21, the notch 22 and the rib plate 23 can be determined according to actual conditions and actual needs.

[0046] Based on the above embodiment, preferably, the installation position of the installation plate 13 is lower than the center axis of the wheel. That is, the installation plane of the leaf spring 2 of the steering axle 1 is lower than the center axis of the wheel. This arrangement can provide more space for the installation of the engine or battery box on the upper part of the steering axle 1, and can also make the center of gravity of the vehicle lower and the driving more stable.

[0047] Preferably, the ends of the left mounting arm 7 and the right mounting arm 8 are both provided with a first step 24, and both ends of the round steel pipe 6 are both provided with a receiving groove for installing the first step 24. The provision of the first step 24 can facilitate the positioning of the installation positions of the left mounting arm 7 and the right mounting arm 8, so as to facilitate the subsequent welding operation and ensure the assembly accuracy of the bridge body.

[0048] Preferably, the end of the suspension shock absorber is a conical structure, and rubber sleeves 25 are fitted on both sides of the conical structure. The pin shaft 19 is provided with a second step 26 along the axial direction. One end of the rubber sleeve 25 can be inserted into the pin shaft 19 and abut against the second step 26. The other end of the rubber sleeve 25 is provided with a washer 27 and a locking nut 29.

[0049] It should be noted that the two rubber sleeves 25 can form a step with the end of the suspension shock absorber, and the rubber sleeve 25 can prevent the washer 27 from directly contacting the end of the suspension shock absorber, and can prevent the washer 27 and the locking nut 29 from loosening. Moreover, the rubber sleeve 25 can effectively reduce the impact between the suspension shock absorber and other components, and extend the service life of the suspension shock absorber and other components. It is also possible to add a spring washer 28 between the washer 27 and the locking nut 29, that is, after the rubber sleeve 25 is inserted into the pin 19, the washer 27 is used to first resist the rubber sleeve 25 of the suspension shock absorber, and then the spring washer 28, the locking nut 29, etc. are used in sequence to perform locking operations to prevent the suspension shock absorber and the pin 19 from loosening.

[0050] In actual use, the shape, structure, size, material, position, etc. of the conical structure, rubber sleeve 25, washer 27, spring washer 28 and locking nut 29 can be determined according to actual conditions and actual needs.

[0051] Preferably, the first mounting bracket 4 and the second mounting bracket 5 are welded and fixed, and the first mounting bracket 4 is welded on the steering axle 1 to ensure the connection and fixing effect of each component.

[0052] It should be noted that the first step 24 and the second step 26, the first mounting bracket 4 and the second mounting bracket 5 mentioned in the present application document, wherein the first and the second are only used to distinguish the different positions, and there is no order of precedence.

[0053] In addition, it should be noted that the directions or positional relationships indicated by "left and right", "vertical", etc. in this application are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of simplifying the description and facilitating understanding, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0054] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. Any combination of all embodiments provided by the present invention is within the protection scope of this invention and will not be described in detail here.

[0055] The above is a detailed introduction to the tractor integrated suspension steering axle provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A tractor integrated suspension steering axle, characterized in that: include: A steering axle (1), a leaf spring (2), a suspension shock absorber (3), a first mounting bracket (4) and a second mounting bracket (5) for horizontally fixing the leaf spring (2) on the steering axle (1), wherein two first mounting brackets (4) are symmetrically arranged on the steering axle (1), and the side of each first mounting bracket (4) is vertically provided with a second mounting bracket (5), the two leaf springs (2) are used to be connected to the bottom of a vehicle frame, one end of the suspension shock absorber (3) is fixed to the second mounting bracket (5), and the other end is connected to the side of the vehicle frame; The steering axle (1) comprises a horizontally arranged round steel pipe (6), a left mounting arm (7) arranged at the left end of the round steel pipe (6), a right mounting arm (8) arranged at the right end of the round steel pipe (6), a left steering knuckle (9) connected to the left mounting arm (7), a right steering knuckle (10) connected to the right mounting arm (8), a steering rocker arm (11) for controlling the steering of the steering axle (1), and a tie rod (12); The left steering knuckle (9) and the right steering knuckle (10) are both used to connect to wheels, the steering rocker arm (11) is arranged on the left steering knuckle (9), and the ball head of the left steering knuckle (9) and the ball head of the left steering knuckle (9) are respectively connected to the ends of the tie rod (12); The first mounting bracket (4) comprises a mounting plate (13) horizontally arranged on the top of the round steel pipe (6), a pressure plate (14), a U-shaped bolt (15) and a fastener, the mounting plate (13) and the pressure plate (14) are respectively provided with through holes for passing the U-shaped bolt (15), the leaf spring (2) is clamped between the mounting plate (13) and the pressure plate (14), and the fastener is used to lock the pressure plate (14) on the leaf spring (2); The second mounting bracket (5) comprises a connecting portion (16) connected to the mounting plate (13), a vertical portion (17) vertically connected to the connecting portion (16), and a horizontal portion (18) arranged at the top of the vertical portion (17), the horizontal portion (18) being provided with a pin shaft (19) for fixing the suspension shock absorber (3) and a limit plate (21) for abutting against a rubber limit block (20) of the vehicle frame, the pin shaft (19) and the limit plate (21) being arranged in parallel; The fastener comprises a spring washer, a cotter pin and a slotted nut.

2. The tractor integrated suspension steering axle according to claim 1, characterized in that: The vertical portion (17) is provided with a notch (22) at a position corresponding to the steering rocker arm (11).

3. The tractor integrated suspension steering axle according to claim 1, characterized in that: Rib plates (23) are provided on both sides of the connection portion (16), and the rib plates (23) are fitted to the outer periphery of the round steel pipe (6).

4. The tractor integrated suspension steering axle according to any one of claims 1 to 3, characterized in that: The installation position of the installation plate (13) is lower than the center axis position of the wheel.

5. The tractor integrated suspension steering axle according to any one of claims 1 to 3, characterized in that: The ends of the left mounting arm (7) and the right mounting arm (8) are both provided with a first step (24), and both ends of the round steel pipe (6) are both provided with a receiving groove for mounting the first step (24).

6. The tractor integrated suspension steering axle according to any one of claims 1 to 3, characterized in that: The end of the suspension shock absorber is a conical structure, and rubber sleeves (25) are fitted on both sides of the conical structure. The pin shaft (19) is provided with a second step (26) along the axial direction. One end of the rubber sleeve (25) can be inserted into the pin shaft (19) and abut against the second step (26), and the other end of the rubber sleeve (25) is provided with a washer (27) and a locking nut (29).

7. The tractor integrated suspension steering axle according to any one of claims 1 to 3, characterized in that: The first mounting bracket (4) and the second mounting bracket (5) are fixed by welding, and the first mounting bracket (4) is welded on the steering axle (1).

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