A special heavy-duty towable transport platform

Abstract

The present invention discloses a towable special-purpose heavy-duty carrier platform, comprising: a wheel axle, a U-shaped bracket, hubs symmetrically arranged at both ends of the wheel axle, and a drive system corresponding to each hub one by one; the open end of the U-shaped bracket is fixedly installed on the wheel axle; on both sides of the U-shaped bracket, an idle axle parallel to the wheel axle is fixedly installed respectively; the drive system includes a motor, a driving gear, a clutch gear, a toothed disc and a tooth-pulling mechanism; the motor is fixedly installed at the other end of the U-shaped bracket; the driving gear is fixedly installed on the output shaft of the motor; the toothed disc is coaxially arranged with the hub and fixedly connected; the clutch gear is rotatably installed on the idle axle and is located between the toothed disc and the driving gear; the tooth-pulling mechanism is fixedly installed on the U-shaped bracket and is used for controlling the axial movement of the clutch gear along the idle axle to make the clutch gear mesh with or disengage from the toothed disc. The wheel set of this heavy-duty carrier platform has both self-propelling ability and accompanying ability.

Description

Technical Field

[0001] The present invention relates to the technical field of special heavy-duty special transportation platforms, and specifically relates to a towable special heavy-duty transportation platform. Background Art

[0002] Currently, most of the wheel sets of towable special heavy-duty transportation platforms do not have self-propelling capabilities, that is, they must rely on a tractor for traction; a small number of transportation platforms have self-propelling capabilities, but their wheel sets cannot be separated from the power source, resulting in the easy damage of their self-driving systems during driving, thus affecting the normal use of the transportation platform. Summary of the Invention

[0003] In view of this, the present invention provides a towable special heavy-duty transportation platform, which can be towed by a tractor during normal road driving with the platform wheel sets following, and can also be self-driven by the platform wheel sets when the power of the tractor is insufficient.

[0004] The technical solution of the present invention is as follows: A towable special heavy-duty transportation platform includes: a wheel axle, a U-shaped bracket, hubs symmetrically arranged at both ends of the wheel axle, and a drive system corresponding to each hub one by one;

[0005] The open end of the U-shaped bracket is fixedly installed on the wheel axle; on both sides of the U-shaped bracket, an idler shaft parallel to the wheel axle is fixedly installed respectively;

[0006] The drive system includes a motor, a driving gear, a clutch gear, a toothed disc, and a tooth shifting mechanism; the motor is fixedly installed at the other end of the U-shaped bracket; the driving gear is fixedly installed on the output shaft of the motor; the toothed disc is coaxially arranged and fixedly connected with the hub; the clutch gear is rotatably installed on the idler shaft and is located between the toothed disc and the driving gear;

[0007] The tooth shifting mechanism is fixedly installed on the U-shaped bracket and is used to control the axial movement of the clutch gear along the idler shaft to make the clutch gear engage or disengage with the toothed disc.

[0008] Further, the tooth shifting mechanism includes a support, a hydraulic cylinder, and a fork;

[0009] The support is fixedly installed on the U-shaped bracket and is fixedly connected with the cylinder body of the hydraulic cylinder;

[0010] One end of the fork is fixedly connected with the piston rod of the hydraulic cylinder, and the fork head at the other end has a clearance fit with the clutch gear and is used to control the movement of the clutch gear.

[0011] Further, the fork head is provided with a clamping groove for cooperating with the clutch gear.

[0012] Further, the driving gear is fixedly mounted on the output shaft of the motor through a mounting flange.

[0013] Further, the U-shaped bracket is fixedly mounted on the wheel axle through an ear.

[0014] Further, the number of teeth of the toothed disc is greater than or equal to the number of teeth of the driving gear.

[0015] Further, it further includes a suspension corresponding to each wheel hub one by one;

[0016] The suspension is mounted between the walking platform and the wheel axle.

[0017] Further, the suspension includes a suspension oil cylinder, a rotating frame, a swing arm and a connecting seat;

[0018] The swing arm is rotatably connected between the connecting seat and the rotating frame;

[0019] The connecting seat is fixedly connected to the wheel axle;

[0020] The top end of the rotating frame is fixedly connected to the walking platform;

[0021] The suspension oil cylinder is rotatably connected between the middle of the swing arm and the top of the rotating frame.

[0022] Further, the motor is a hydraulic motor.

[0023] Advantageous effects:

[0024] 1. The towable special heavy-duty transport platform of the present invention is provided with a drive system composed of a motor, a driving gear, a clutch gear, a tooth-pulling mechanism and a toothed disc, enabling the transport platform to have self-propelling ability without relying on a tractor for power. Thus, when the traction force is insufficient, such as when the transport platform is going uphill, the drive system can provide self-propelling power; moreover, since the tooth-pulling mechanism can easily disengage the clutch gear from the toothed disc, the wheel set also has the ability to follow and drive.

[0025] 2. In the present invention, the tooth-pulling mechanism can easily convert the meshing state of the clutch gear with the toothed disc into a disengaged state, so that the components of the drive system are not easily damaged when the wheel set is following and driving.

[0026] 3. The drive system in the present invention mainly uses gears for transmission, with a simple structure, high efficiency and smooth transmission.

[0027] 4. In the present invention, a hydraulic mechanism is used to drive the tooth-pulling, so as to engage or disengage the gears in the drive system. This kind of engagement or disengagement realized through a mechanical structure has high reliability and is easy to operate.

[0028] 5. In the drive system of the present invention, the clutch gear is rotatably engaged with the idle shaft, and the clutch gear can move along the axis of the idle shaft. There is no need to set up too many components, and the structure is simple.

[0029] 6. In the present invention, the carrying platform is also provided with a suspension mechanism composed of a hydraulic rod, a swing arm, a rotating frame, etc., which improves the seismic resistance of the carrying platform and extends the service life of the drive system. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure of a towable special-purpose heavy-duty carrying platform of the present invention;

[0031] Figure 2 is Figure 1 a schematic diagram of the suspension structure in

[0032] Among them, 1 - axle, 2 - U-shaped bracket, 3 - wheel hub, 4 - tire, 5 - idle shaft, 6 - motor, 7 - driving gear, 8 - clutch gear, 9 - toothed disc, 10 - hydraulic cylinder, 11 - fork, 12 - suspension cylinder, 13 - rotating frame, 14 - swing arm, 15 - connecting seat. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The present invention will be described in detail below with reference to the accompanying drawings and by way of examples.

[0034] This embodiment provides a towable special-purpose heavy-duty carrying platform, which can be towed by a tractor when driving on normal roads, and the platform wheel sets follow; when the power of the tractor is insufficient, the platform wheel sets can drive by themselves.

[0035] As <( Figure 1 shown, the towable special-purpose heavy-duty carrying platform includes: an axle 1, a U-shaped bracket 2, wheel hubs 3 symmetrically arranged at both ends of the axle, and a drive system corresponding to each wheel hub 3. Among them, the drive system includes a motor 6, a driving gear 7, a clutch gear 8, a toothed disc 9, and a tooth-pulling mechanism.

[0036] The connection relationship of the towable special heavy-duty transport platform is as follows: The open end of the U-shaped bracket 2 is fixedly installed on the axle 1 through the lug, playing a supporting role; On both sides of the U-shaped bracket 2, a stub axle 5 parallel to the axle 1 is fixedly installed respectively; The motor 6 in the drive system is fixedly installed at the other end of the U-shaped bracket 2, used to provide power for the wheel set to move by itself; The driving gear 7 is installed on the output shaft of the motor 6. In this embodiment, a hydraulic motor is selected, and the driving gear 7 is fixedly installed on the output shaft of the hydraulic motor through a flange; The gear disc 9 is coaxially arranged and fixedly connected with the wheel hub 3, used to directly drive the tire 4; The clutch gear 8 is rotatably installed on the stub axle 5 and is located between the gear disc 9 and the driving gear 7, which can transmit the power of the driving gear 7 to the gear disc 9; The shifting tooth mechanism is fixedly installed on the U-shaped bracket 2, used to control the axial movement of the clutch gear 8 along the stub axle 5, so that the clutch gear 8 meshes or disengages with the gear disc 9, thus enabling the wheel set to freely switch between moving by itself and following.

[0037] As an important structure in the drive system, the shifting tooth mechanism enables the wheel set to have both the ability to move by itself and the ability to follow, and protects the components in the drive system from being easily damaged when the wheel set is following. Its composition includes a support, a hydraulic cylinder 10 and a shifting fork 11; Among them, the support is fixedly installed on the U-shaped bracket 2 and is fixedly connected with the cylinder body of the hydraulic cylinder 10; One end of the shifting fork 11 is fixedly connected with the piston rod of the hydraulic cylinder 10, and the other end of the shifting fork head has a clearance fit with the end face of the clutch gear 8, used to control the movement of the clutch gear 8 along the axis direction of the stub axle 5.

[0038] Specifically, as Figure 1 shown, in this embodiment, the shifting fork head of the shifting fork 11 is provided with a clamping groove having a clearance fit with the end face of the clutch gear 8. In this way, when the piston rod of the hydraulic cylinder 10 extends, it can make the shifting fork head push the clutch gear 8 forward, realizing the meshing state of the clutch gear 8 and the gear disc 9 ( Figure 1 Only the connection relationship between the shifting fork 2 and the clutch gear 8 in one drive system is shown), and moreover, when the clutch gear 8 rotates, since the clamping groove and the clutch gear 8 have a clearance fit, the shifting fork head will not interfere with the normal rotation of the clutch gear 8; When the piston rod of the hydraulic cylinder 10 contracts, it can make the shifting fork head pull the clutch gear 8 backward, realizing the disengagement of the clutch gear 8 and the gear disc 9 ( Figure 1 The disengagement state is not shown). It should be noted that as Figure 1As shown, the tooth width of the driving gear 7 is significantly greater than that of the clutch gear 8. This is to ensure that when the clutch gear 8 disengages from the tooth disc 9, the clutch gear 8 can still remain engaged with the driving gear 7. That is, the clutch gear 8 can achieve two states of disengaging or engaging with the tooth disc 9, but the clutch gear 8 always remains in the engaged state with the driving gear 7. Thus, to make the wheel set of the heavy-duty transport platform follow, it is only necessary to use the fork 11 to disengage the clutch gear 8 from the tooth disc 9, without having to stop the motor 6. To make the wheel set of the heavy-duty transport platform move independently, it is only necessary to directly use the fork 11 to engage the clutch gear 8 with the tooth disc 9, without having to first stop the motor 6 and the driving gear 7 from rotating, then engage the clutch gear 8 with the tooth disc 9, and finally start the motor 6. This avoids damage to the motor 6 caused by frequent starting of the motor 6, and ensures the free switching between following and moving independently of the wheel set of the heavy-duty transport platform, as well as the continuity and smoothness of the movement of the wheel set.

[0039] Considering that sufficient torque is required when the wheel set moves independently, in this embodiment, the number of teeth of the tooth disc 9 is greater than or equal to the number of teeth of the driving gear 7.

[0040] In addition, to enable the special-purpose heavy-duty transport platform to have good seismic performance, a suspension corresponding to each hub 3 is also provided, and the suspension is arranged between the walking platform and the wheel axle 2; the structure of the suspension is as Figure 2 shown, and it includes a suspension cylinder 12, a rotating frame 13, a swing arm 14, and a connecting seat 15; the specific connection relationship is: the swing arm 14 is rotatably connected between the connecting seat 15 and the rotating frame 13; the connecting seat 15 is fixedly connected to the wheel axle 1; the top of the rotating frame 13 is fixedly connected to the walking platform; the suspension cylinder 12 is rotatably connected between the middle of the swing arm 14 and the top of the rotating frame 13.

[0041] In summary, the above is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A special heavy-duty towable transport platform, characterized in that, Comprising: A wheel axle (1), a U-shaped bracket (2), hubs (3) symmetrically arranged at both ends of the wheel axle (1), and a drive system corresponding to each hub (3); The open end of the U-shaped bracket (2) is fixedly installed on the wheel axle (1); on both sides of the U-shaped bracket (2), an idler shaft (5) parallel to the wheel axle (1) is fixedly installed respectively; The drive system includes a motor (6), a driving gear (7), a clutch gear (8), a toothed disc (9), and a tooth shifting mechanism; the motor (6) is fixedly installed at the other end of the U-shaped bracket (2); the driving gear (7) is fixedly installed on the output shaft of the motor (6); the toothed disc (9) is coaxially arranged and fixedly connected with the hub (3); the clutch gear (8) is rotatably installed on the idler shaft (5) and is located between the toothed disc (9) and the driving gear (7); The tooth shifting mechanism is fixedly installed on the U-shaped bracket (2) and is used to control the axial movement of the clutch gear (8) along the idler shaft (5) to make the clutch gear (8) engage or disengage with the toothed disc (9); The tooth shifting mechanism includes a support, a hydraulic cylinder (10), and a fork (11); The support is fixedly installed on the U-shaped bracket (2) and is fixedly connected with the cylinder body of the hydraulic cylinder (10); One end of the fork (11) is fixedly connected with the piston rod of the hydraulic cylinder (10), and the fork head at the other end is in clearance fit with the clutch gear (8) and is used to control the movement of the clutch gear (8); The fork head is provided with a clamping groove for cooperating with the clutch gear (8); The number of teeth of the toothed disc (9) is greater than or equal to the number of teeth of the driving gear (7); The tooth width of the driving gear (7) is greater than the tooth width of the clutch gear (8).

2. The carrier platform according to claim 1, wherein, The driving gear (7) is fixedly installed on the output shaft of the motor (6) through a mounting flange.

3. The carrier platform according to claim 1, wherein, The U-shaped bracket (2) is fixedly installed on the wheel axle (1) through an ear.

4. The carrier platform according to claim 1, characterized in that, It further includes a suspension corresponding to each hub (3); The suspension is installed between the walking platform and the wheel axle (1).

5. The carrier platform according to claim 4, characterized in that, The suspension includes a suspension cylinder (12), a rotating frame (13), a swing arm (14), and a connecting seat (15); The swing arm (14) is rotatably connected between the connecting seat (15) and the rotating frame (13); The connecting seat (15) is fixedly connected to the wheel axle (1); The top of the rotating frame (13) is fixedly connected to the walking platform; The suspension cylinder (12) is rotatably connected between the middle of the swing arm (14) and the top of the rotating frame (13).

6. The carrying platform according to any one of claims 1-5, characterized in that, The motor (6) is a hydraulic motor.

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