Engineering machinery axle suitable for cross-country scissor platform

Abstract

The utility model discloses an engineering machinery axle suitable for a cross-country scissors fork platform, which comprises two groups of drive axle housings, one end of each drive axle housing is fixedly provided with a wheel body, the other end of each drive axle housing is connected with a steering mechanism, and the steering mechanisms are connected and installed through two groups of turnover connecting frames. The steering mechanism and the turnover connecting frame are connected and installed through an upper cross arm and a lower cross arm respectively, turnover mounting frames are fixedly installed at the top of the turnover connecting frame, mounting cross beams are connected and installed between the turnover mounting frames, an elastic connecting structure is installed on the turnover mounting frame and located between the mounting cross beams, and the elastic connecting structure is connected with the turnover connecting frame through an upper cross arm and a lower cross arm. And the other end of the elastic connecting structure is connected with one end of the lower cross arm. The stability of the cross-country scissor-fork platform is improved under the condition that it is guaranteed that the cross-country scissor-fork platform is suitable for running on rugged terrains, and therefore stable running of the top face of the scissor-fork platform is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model belongs to aerial work platform technical field, concretely relates to an engineering machinery axle suitable for cross-country scissor fork platform. BACKGROUND

[0002] The scissor fork aerial work platform has a scissor fork mechanical structure, has higher stability for the lifting platform, has a wide work platform and higher carrying capacity, has a larger aerial work range and is suitable for simultaneous work of multiple people. It makes the aerial work more efficient and safer. The bottom is a movable work vehicle, the bottom axle can be integral, and the two ends support the vehicle body through a suspension system, or can be disconnected, and each supports the vehicle body through a suspension system.

[0003] The utility model discloses a kind of self-propelled scissor fork aerial work platform chassis, including driving device, reduction and differential assembly, axle, underframe and walking mechanism, the axle includes axle housing, half shaft is equipped in the axle housing of the axle two sides, the walking mechanism includes wheel and wheel hub, the wheel hub is connected with the half shaft, the wheel is arranged on the wheel hub, the input end of the reduction and differential assembly is connected with the driving device, the output end of the reduction and differential assembly is connected with the half shaft, the axle housing and underframe are connected. The utility model power is only by one driving device after reduction machine, reduction machine self-differential effectively distributes power to axle two sides half shaft, power is transmitted to wheel by half shaft, drives vehicle to walk. Reduction machine with differential effectively and evenly distributes power to two sides wheel, improves passability. The utility model structure is simple, can effectively distribute power, energy saving, transmission efficiency is high, and reliability is high. The above-mentioned utility model effectively and evenly distributes power to two sides wheel by reduction machine with differential, improves passability, but when driving or working on the ground with lower flatness, it will produce unstable situation of shaking, and scissor fork work platform top weight is larger, it is easy to occur center of gravity deviation and collapse in shaking process. And in the process of worker construction, its bottom is skewed, increase the safety risk of the scissor fork work platform. UTILITY MODEL CONTENTS

[0004] In order to solve the above technical problems, the utility model provides an engineering mechanical vehicle axle suitable for cross -country scissor fork platform, including two groups drive axle housing, drive axle housing one end fixedly installed has the wheel body, drive axle housing other end is connected and installed with the steering mechanism, the steering mechanism is connected and installed through two groups of turnover connecting frame between, the steering mechanism with the turnover connecting frame between respectively through upper lateral arm and lower lateral arm connection installation, turnover connecting frame top fixedly installed has the turnover mounting bracket, and the turnover mounting bracket between connection installation has the installation crossbeam, the turnover mounting bracket on between installation crossbeam has the elastic connection structure, and the other end of the elastic connection structure with lower lateral arm one end connection installation.

[0005] The scissor fork platform chassis is connected and installed with the crossbeam, and the wheel body on the two mechanical vehicle axles assists the cross -country driving of the scissor fork platform.

[0006] As a further preferred technical scheme of the utility model, the steering mechanism comprises a lateral arm knuckle at the top and the bottom respectively and a wheel body knuckle welded and installed between the lateral arm knuckles, one end of the wheel body penetrates the drive axle housing and is fixedly installed with a steering universal ball, the steering universal ball is rotationally connected with the wheel body knuckle, and a limiting ring is welded and installed on the steering universal ball.

[0007] When the drive axle housing drives the wheel body, the direction of the wheel body is adjusted in cooperation with the electric control system, the steering universal ball at the end of the wheel body rotates inside the wheel body knuckle, and the smoothness of the scissor fork platform during steering is ensured.

[0008] As a further preferred technical scheme of the utility model, one end of the upper lateral arm is welded and installed with an upper arm connecting block, one end of the upper arm connecting block is connected and installed with an auxiliary universal ball, one end of the lower lateral arm is welded and installed with a lower arm connecting block, one end of the lower arm connecting block is connected and installed with a connecting universal ball, and a shock absorber is connected and installed between the upper arm connecting block and the auxiliary universal ball and between the connecting universal ball and the lower arm connecting block.

[0009] During the driving of the mechanical vehicle axle carrying the scissor fork platform, the auxiliary universal ball is extruded and buffered between the top scissor fork platform of the vehicle axle and the wheel body during the steering of the wheel body, so that the stability of the scissor fork platform during movement is ensured.

[0010] As a further preferred technical scheme of the utility model, the auxiliary universal ball and the connecting universal ball are rotationally connected with the lateral arm knuckle.

[0011] The wheel body is ensured to be steered without affecting the vehicle axle itself.

[0012] As a further preferred technical scheme of the utility model, the bottom between the turnover connecting frames is connected and installed through a stabilizing rod, the top and the bottom of the turnover connecting frame are both installed with a turnover shaft, and the upper cross arm and the lower cross arm are both connected with the turnover connecting frame through the turnover shaft.

[0013] The off-road type scissor platform is generally used in non-planar terrain, is installed with two groups of turnover connecting frames, and realizes that two groups of wheel bodies can adapt to the terrain without affecting the height of the other side and the stability of the axle itself.

[0014] As a further preferred technical scheme of the utility model, the elastic connecting structure comprises a connecting end, an outer rod fixedly installed at the bottom of the connecting end, a sliding shaft slidingly installed in the outer rod, a turnover fixed frame fixedly installed at the end of the sliding shaft and a damping spring connected and installed between the outer rod and the turnover fixed frame, one end of the connecting end is connected with the turnover connecting frame and the installation cross beam, and the bottom of the turnover fixed frame is connected with the lower cross arm.

[0015] The upper cross arm and the lower cross arm cooperate with the elastic connecting structure, so that the four groups of wheel bodies at the bottom of the scissor platform are respectively adjusted according to the ground, and the stability of the top of the scissor platform in the construction process is ensured.

[0016] Beneficial effects

[0017] Compared with the prior art, the utility model has the beneficial effects that:

[0018] 1. During the use of the mechanical axle, the road surface on one side is raised or uneven, and the outer rod and the sliding shaft are matched, and the elastic connection is made by the damping spring, so that the scissor platform at the top of the axle always remains horizontal, the stability of the off-road scissor platform is improved under the condition that the off-road scissor platform is suitable for driving on rugged terrain, and the stable driving of the top surface of the scissor platform is ensured.

[0019] 2. When the terrain flatness is poor at the position where the lifting operation is required, the upper cross arm and the lower cross arm cooperate with the elastic connecting structure, so that the four groups of wheel bodies at the bottom of the scissor platform are respectively adjusted according to the ground, and the stability of the top of the scissor platform in the construction process is ensured. DRAWINGS

[0020] Figure 1 It is a top view three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a side view three-dimensional structure schematic view of the utility model;

[0022] Figure 3 It is Figure 2 An enlarged structure schematic view of position A in the middle; An enlarged structure schematic view of position A in the middle;

[0023] Figure 4 for Figure 2 A magnified structural diagram at point B in the middle.

[0024] In the diagram: 1. Drive axle housing; 11. Wheel body; 12. Steering universal ball; 13. Limiting ring; 2. Steering mechanism; 21. Wheel body steering knuckle; 22. Cross arm steering knuckle; 3. Upper cross arm; 31. Upper arm connecting block; 32. Auxiliary universal ball; 33. Shock absorber; 4. Lower cross arm; 41. Connecting universal ball; 42. Lower arm connecting block; 5. Tilting connecting frame; 51. Stabilizer bar; 52. Tilting shaft; 6. Mounting beam; 61. Tilting mounting frame; 7. Elastic connection structure; 71. Outer rod; 72. Vibration damping spring; 73. Sliding shaft; 74. Tilting fixing frame; 75. Connecting end. Detailed Implementation

[0025] This specific embodiment is an engineering machinery axle suitable for off-road scissor lift platforms.

[0026] The aforementioned utility model effectively distributes power evenly to both wheels via a reducer and differential, improving passability. However, when driving or working on uneven ground, it can cause swaying and instability. Furthermore, the heavy weight on top of the scissor lift platform makes it prone to collapse due to a shift in the center of gravity during swaying. Additionally, the platform's tilting at the bottom during construction increases the safety risks associated with the scissor lift platform.

[0027] Its structural diagram is as follows Figures 1-4As shown. An engineering machinery axle suitable for off-road scissor lift platforms includes two sets of drive axle housings 1. An electromagnetic drive assembly and a reducer assembly are installed inside the drive axle housing 1. The internal electromagnetic drive assembly includes a rotor base, a stator core, and stator windings. When the rotor base is energized, the electromagnetic field generated by the stator core and stator windings causes the rotor to rotate, thereby rotating the main shaft connected to the rotor, driving the wheel 11 to rotate, achieving the driving effect. The wheel 11 is fixedly mounted on one end of the drive axle housing 1. A steering mechanism 2 is connected and mounted on the other end of the drive axle housing 1. The steering mechanism 2 includes a crossarm steering knuckle 22 located at the top and bottom respectively, and a wheel steering knuckle 21 welded between the crossarm steering knuckles 22. A steering universal ball 12 is fixedly mounted through the drive axle housing 1 at one end of the wheel 11, and the steering universal ball 12 is rotatably connected to the wheel steering knuckle 21. A limit ring 13 is welded and mounted on the steering universal ball 12. When the drive axle housing 1 drives the wheel 11, the direction of the wheel 11 is adjusted in conjunction with the electronic control system, so that the steering universal ball 12 at the end of the wheel 11 rotates inside the wheel steering knuckle 21, ensuring the smoothness of the scissor lift platform when turning. The steering mechanisms 2 are connected and installed through two sets of tilting connecting frames 5, and the steering mechanisms 2 and the tilting connecting frames 5 are connected and installed through the upper cross arm 3 and the lower cross arm 4, respectively. An upper arm connecting block 31 is welded and installed at one end of the upper cross arm 3, and an auxiliary universal ball 32 is connected and installed at one end of the upper arm connecting block 31. A lower arm connecting block 42 is welded and installed at one end of the lower cross arm 4, and a connecting universal ball 41 is connected and installed at one end of the lower arm connecting block 42. A shock absorber 33 is connected and installed between the upper arm connecting block 31 and the auxiliary universal ball 32, as well as between the connecting universal ball 41 and the lower arm connecting block 42. During the movement of the scissor lift platform on the mechanical axle, when the wheel 11 turns, the auxiliary universal joint 32 provides compression and buffer between the scissor lift platform and the wheel 11 at the top of the axle to ensure the stability of the scissor lift platform during movement. Both the auxiliary universal joint 32 and the connecting universal joint 41 rotate in conjunction with the crossarm steering knuckle 22 to ensure that the axle itself is not affected when the wheel 11 turns. The bottom of the tilting connecting frames 5 is connected and installed via a stabilizer bar 51. Tilting shafts 52 are installed at both the top and bottom of the tilting connecting frames 5, and the upper crossarm 3 and lower crossarm 4 are both tilted and connected to the tilting connecting frames 5 via the tilting shafts 52. Off-road scissor lift platforms are generally used in non-planar terrain. They are installed with two sets of tilting connecting frames 5, allowing each set of wheel 11 to adapt to the terrain without affecting the height of the other side or the stability of the axle itself. A tilting mounting frame 61 is fixedly installed on the top of the tilting connecting frame 5, and mounting beams 6 are connected between the tilting mounting frames 61. An elastic connection structure 7 is installed on the flip mounting bracket 61 between the mounting beams 6, and the other end of the elastic connection structure 7 is connected to one end of the lower cross arm 4.The elastic connection structure 7 includes a connecting end 75, an outer rod 71 fixedly installed at the bottom of the connecting end 75, a sliding shaft 73 slidably installed inside the outer rod 71, a flip-fixed frame 74 fixedly installed at the end of the sliding shaft 73, and a damping spring 72 connecting the outer rod 71 and the flip-fixed frame 74. One end of the connecting end 75 is flip-connected to the flip-mounted frame 61 and the mounting beam 6, and the bottom of the flip-fixed frame 74 is flip-connected to the lower crossarm 4. During the use of this mechanical axle, if one side of the road surface is raised or uneven, the outer rod 71 and the sliding shaft 73 can cooperate, and the damping spring 72 can provide an elastic connection, so that the scissor platform on the top of the axle always remains horizontal. This improves the stability of the off-road scissor platform while ensuring its suitability for driving on rough terrain, thereby ensuring stable driving on the top surface of the scissor platform. When the terrain is uneven at the location where the lifting operation is required, the upper crossarm 3 and the lower crossarm 4, together with the elastic connection structure 7, enable the four sets of wheels 11 at the bottom of the scissor lift platform to make corresponding position adjustments according to the ground, ensuring the stability of the top of the scissor lift platform during construction.

[0028] Example 1: The wheel 11 is driven to rotate by the electromagnetic drive assembly installed inside the drive axle housing 1, thus achieving the driving effect. During the movement of the scissor lift platform carried by the mechanical axle, when the wheel 11 turns, the auxiliary universal ball 32 provides compression and buffer between the scissor lift platform and the wheel 11 at the top of the axle to ensure the stability of the scissor lift platform during movement. When the platform encounters uneven ground, the sliding shaft 73 provides vibration reduction.

[0029] Example 2: The upper crossarm 3 and lower crossarm 4, together with the elastic connection structure 7, allow the four sets of wheels 11 at the bottom of the scissor lift platform to adjust their positions according to the ground. When the bottom of a set of wheels 11 is subjected to a protrusion, the upper crossarm 3 and lower crossarm 4 flip on the flipping connection frame 5, so that the wheels 11 reach a certain height. During this process, the outer rod 71, the damping spring 72, and the sliding shaft 73 work together to control the wheels 11 to return to their original position after passing the ground. This method is also applicable during stable construction to ensure the stability of the top of the scissor lift platform during construction.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.

Claims

1. An engineering machinery axle suitable for off-road scissor lift platforms, characterized in that, It includes two sets of drive axle housings (1), one end of which is fixedly mounted with a wheel body (11), and the other end of which is connected to a steering mechanism (2). The steering mechanisms (2) are connected and mounted through two sets of flip connecting frames (5). The steering mechanism (2) and the flip connecting frame (5) are connected and mounted through an upper cross arm (3) and a lower cross arm (4) respectively. A flip mounting frame (61) is fixedly mounted on the top of the flip connecting frame (5), and a mounting beam (6) is connected and mounted between the flip mounting frames (61). An elastic connecting structure (7) is installed on the flip mounting frame (61) between the mounting beams (6), and the other end of the elastic connecting structure (7) is connected and mounted to one end of the lower cross arm (4).

2. The engineering machinery axle suitable for off-road scissor lift platforms according to claim 1, characterized in that: The steering mechanism (2) includes a cross arm steering knuckle (22) located at the top and bottom respectively, and a wheel body steering knuckle (21) welded between the cross arm steering knuckles (22). One end of the wheel body (11) passes through the drive axle housing (1) and is fixedly mounted with a steering universal ball (12). The steering universal ball (12) is rotatably connected to the wheel body steering knuckle (21). A limit ring (13) is welded onto the steering universal ball (12).

3. The engineering machinery axle suitable for off-road scissor lift platforms according to claim 2, characterized in that: An upper arm connecting block (31) is welded to one end of the upper cross arm (3), and an auxiliary universal ball (32) is connected to one end of the upper arm connecting block (31). A lower arm connecting block (42) is welded to one end of the lower cross arm (4), and a connecting universal ball (41) is connected to one end of the lower arm connecting block (42). A shock absorber (33) is connected between the upper arm connecting block (31) and the auxiliary universal ball (32), as well as between the connecting universal ball (41) and the lower arm connecting block (42).

4. The engineering machinery axle suitable for off-road scissor lift platforms according to claim 3, characterized in that: Both the auxiliary universal ball (32) and the connecting universal ball (41) rotate in conjunction with the cross arm steering knuckle (22).

5. The engineering machinery axle suitable for off-road scissor lift platforms according to claim 1, characterized in that: The bottom of the flip-connecting frame (5) is connected and installed by a stabilizing rod (51). The top and bottom of the flip-connecting frame (5) are both equipped with flip shafts (52), and the upper horizontal arm (3) and the lower horizontal arm (4) are flipped and connected to the flip-connecting frame (5) through the flip shafts (52).

6. The engineering machinery axle suitable for off-road scissor lift platforms according to claim 1, characterized in that: The elastic connection structure (7) includes a connecting end (75), an outer rod (71) fixedly installed at the bottom of the connecting end (75), a sliding shaft (73) slidably installed inside the outer rod (71), a flip fixing frame (74) fixedly installed at the end of the sliding shaft (73), and a damping spring (72) connected between the outer rod (71) and the flip fixing frame (74). One end of the connecting end (75) is flipped and connected to the flip mounting frame (61) and the mounting beam (6). The bottom of the flip fixing frame (74) is flipped and connected to the lower cross arm (4).

Images