A crawler excavator transport roller

Abstract

The present invention relates to the technical field of crawler excavator transport equipment, and in particular to a crawler excavator transport wheel pulley. It comprises a vehicle body platform, a pressure rod locking mechanism, a hub connector and a running wheel; the running wheel is fixedly connected to the hub connector, and the hub connector is rotatably connected to the rotating shaft through a bearing, and the rotating shaft is fixedly connected to the vehicle body platform; the pressure rod locking mechanism prevents the hub connector from rotating around the rotating shaft, thereby achieving locking and restricting the rotation of the running wheel; after the crawler excavator is pressed onto the vehicle body platform, the pressure drives the pressure rod locking mechanism to move, thereby achieving unlocking, so that the hub connector can rotate around the rotating shaft, and then the running wheel can rotate. It has a self-locking function, a low failure rate, strong practicality, can be quickly installed and disassembled, and is easy to use; it increases the excavator transportation speed, reduces transportation costs, and eliminates damage to the road surface.

Description

Technical Field

[0001] The present invention relates to the technical field of crawler excavator transport equipment, in particular to a crawler excavator transport wheel block. Background Art

[0002] An excavator is an earth-moving machine that uses a bucket to dig materials above or below the bearing surface and load them into transport vehicles or unload them to a stockpile. Excavators are divided into crawler excavators and wheeled excavators. At present, crawler excavators are widely used in various fields, and are used for construction in mining, construction, bridges and other fields, which greatly facilitates construction and improves work efficiency.

[0003] However, because excavators are designed for mobile operation on construction sites, they travel slowly, typically at a maximum speed of around 5 km / h. While this is sufficient for small construction sites, the transfer of vehicles at these speeds is time-consuming and labor-intensive, requiring specialized flatbed trailers for transport. This method of transportation increases both transportation costs and waiting times, while also increasing labor costs, a factor that pales in comparison when multiple vehicles need to be transferred. Some excavators also operate within factory premises. Since these areas are paved with asphalt, moving them over these surfaces can damage the pavement, increasing road maintenance costs over time.

[0004] CN 104176149 A discloses an "excavator transport towing vehicle," which uses wheels mounted on crawler tracks to transport the excavator using an engineering transport vehicle, thereby enabling faster excavator movement. However, due to the lack of a self-locking function, the wheels of the towing vehicle are rotatable during installation. As soon as the excavator contacts the towing vehicle, the towing vehicle moves forward. Before the excavator can be mounted on the towing vehicle, the towing vehicle moves away on its own. Consequently, the excavator cannot be placed on the towing vehicle solely by its own movement. Furthermore, one end of the crawler track of the excavator must be moved to and secured on a steel plate stamped and welded integral bracket, resulting in poor practicality and extreme inconvenience. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a crawler excavator transport wheel pulley with a self-locking function, a low failure rate, and strong practicality. It can be quickly installed and disassembled only by relying on an excavator and is easy to use. It improves the excavator transportation speed, reduces transportation costs, and eliminates damage to the road surface.

[0006] To achieve the above objectives, the present invention adopts the following technical solutions:

[0007] A crawler excavator transport wheel pulley comprises a vehicle body platform, a pressure rod locking mechanism, a wheel hub connecting seat and a running wheel; the running wheel is fixedly connected to the wheel hub connecting seat, and the wheel hub connecting seat is rotatably connected to a rotating shaft via a bearing, and the rotating shaft is fixedly connected to the vehicle body platform; the wheel hub connecting seat is prevented from rotating around the rotating shaft by the pressure rod locking mechanism, thereby achieving locking and restricting the rotation of the running wheel; after the crawler excavator is pressed onto the vehicle body platform, the pressure drives the pressure rod locking mechanism to move, thereby achieving unlocking, so that the wheel hub connecting seat can rotate around the rotating shaft, and thus the running wheel can rotate.

[0008] The vehicle body platform is U-shaped and comprises a bottom plate and side plates vertically fixed to both ends of the bottom plate, and is integrally welded with high-strength steel plates.

[0009] The upper surface of the bottom plate is provided with an anti-slip barrier strip.

[0010] It also includes a limiting beam, which is fixed to the top of the front end of the vehicle body platform.

[0011] The pressure rod locking mechanism includes an unlocking pressure rod, a pressure rod connecting seat, a rotating rod, a first fork, a second fork, a locking fork, a torsion spring and a return torsion spring; the pressure rod connecting seat is fixedly connected to the vehicle body platform, the rotating rod is installed on the pressure rod connecting seat, and the torsion spring is installed on the rotating rod; the unlocking pressure rod is connected to the rotating rod, the rotating rod is connected to the first fork, the first fork is connected to the second fork, the second fork is connected to the locking fork, and the return torsion spring is connected to the locking fork.

[0012] The wheel hub connecting seat is evenly distributed with grooves corresponding to the locking fork head on the circumference; the locking fork head is inserted into the wheel hub connecting seat groove, so that the wheel hub connecting seat cannot rotate around the rotating shaft, thereby achieving locking; after the crawler excavator is pressed on the vehicle body platform, it continues to move forward, pressing the unlocking lever, driving the first fork, the second fork and the locking fork to work together, so that the locking fork leaves the wheel hub connecting seat groove, thereby achieving unlocking.

[0013] The utility model also comprises a suspension rope, which is fixedly connected to the vehicle body platform through a pin shaft.

[0014] The running wheels are made of solid rubber tires.

[0015] The bearing adopts a tapered roller bearing, and the end is provided with a shaft end baffle and a pressure cover, and a built-in lubricating dustproof seal.

[0016] Compared with the existing technology, the beneficial effects of the present invention are:

[0017] 1. When the present invention is used, the excavator can lift two sets of auxiliary wheel pulleys to the front of the excavator's guide wheels through the working arm, and then the excavator's driving wheel moves toward the wheel pulley to press onto the vehicle body platform. Then the excavator rotates the working platform 180 degrees, and uses the working arm to support the ground while the driving wheel moves backward. When it hits the limit beam, the locking mechanism is pressed open to complete self-donning (the guide wheels leave the ground on the vehicle). At the same time, the carrier vehicle moves to the front of the excavator, the excavator mounts the working arm on the transport vehicle, drives the vehicle to make the excavator's front driving wheels leave the ground, and the transport vehicle moves through the auxiliary wheel pulleys to drive the excavator to move.

[0018] Once transported to the desired location, the excavator's working arm is no longer attached to the transport vehicle, allowing the roller block to be unloaded. The roller block has a self-locking mechanism that automatically locks when the lever is released during unloading. After leaving the auxiliary device, the excavator hoists the roller block onto the transport vehicle, which can then proceed to the next required location, making operation quick and easy.

[0019] This invention features a self-locking function, improving safety and convenience during use. It is highly practical and can be quickly installed and removed using only an excavator. This increases excavator transport speed, reduces transportation costs, and eliminates damage to the road surface. Because this device is mechanical, it is more practical and has fewer potential problems than other structures (electrical, hydraulic, etc.).

[0020] 2. The tire of the present invention adopts a solid tire specially used for engineering machinery. Compared with pneumatic tires which need to be inflated or have the possibility of bursting, the tire is safer and more durable, does not need to be replaced, and has improved load-bearing capacity.

[0021] 3. The bearing of the present invention adopts a tapered roller bearing, the end of which is provided with a shaft end baffle and a pressure cover, a built-in lubricating dustproof seal, a large load-bearing capacity, and no maintenance is required, thus saving maintenance costs.

[0022] 4. The vehicle body of the present invention is made of high-strength steel plates welded together, making it lighter and stronger than conventional structures.

[0023] 5. The present invention is provided with a lifting rope, which is convenient for use by relying on the working arm of the excavator; the upper surface of the vehicle body platform bottom plate is provided with an anti-slip barrier, which plays a role of anti-slip and improves safety; a limit beam is provided to play a role of limiting, preventing the excavator from moving beyond the position of the limit beam. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0025] Figure 2 This is a schematic front view of the structure of the present invention;

[0026] Figure 3 for Figure 2 PP cross-sectional view;

[0027] Figure 4 for Figure 2 DD cross-sectional view;

[0028] Figure 5 A schematic side view of the structure of the present invention;

[0029] Figure 6 for Figure 5 AA section view;

[0030] Figure 7 for Figure 6 EE cross-sectional view.

[0031] In the figure: 1 - vehicle body platform 2 - pressure rod locking mechanism 3 - wheel hub connection seat 4 - running wheel 5 - lifting rope 6 - limiting beam 7 - pin 8 - rotating shaft 9 - rotating bearing 10 - bottom plate 11 - side plate 12 - anti-slip baffle 21 - unlocking pressure rod 22 - pressure rod connection seat 23 - first fork 24 - second fork 25 - locking fork 26 - torsion spring 27 - reset torsion spring 28 - rotating rod 101 - shaft end baffle 102 - pressure cover 31 - groove DETAILED DESCRIPTION

[0032] Example:

[0033] The specific embodiments of the present invention are further described below with reference to the accompanying drawings:

[0034] like Figures 1 to 7 As shown, a crawler excavator transport wheel block includes a vehicle body platform 1, a pressure rod locking mechanism 2, a wheel hub connecting seat 3, a running wheel 4, a lifting rope 5, a limiting beam 6, a pin shaft 7, a rotating shaft 8 and a rotating bearing 9.

[0035] The vehicle body platform 1 is U-shaped and includes a bottom plate 10 and side plates 11 vertically welded to both ends of the bottom plate 10. The vehicle body platform 1 is made of high-strength steel plates welded in one piece, which is lighter and stronger than general structures.

[0036] The limiting beam 6 is fixedly connected between the two 11 side plates, is positioned at the front end of the vehicle body platform 1, and is positioned at the top. Play the effect of limiting, prevent the mobile stroke of the excavator from exceeding the position where the limiting beam 6 is located.

[0037] The upper surface of the bottom plate 10 is evenly distributed with strip-shaped anti-skid blocking strips 12, which play an anti-skid role and improve safety.

[0038] The two ends of the hoisting rope 5 are fixedly connected to the vehicle body platform 1 through a pin 7. The working arm of the excavator moves the roller block through the hoisting rope 5, which is convenient for installation by relying on the working arm of the excavator.

[0039] The running wheel 4 adopts a solid rubber tire, which is specially used for engineering machinery. Compared with pneumatic tires that need to be inflated and have the possibility of bursting, the solid tire is safer and more durable, does not need to be replaced, and has improved carrying capacity.

[0040] The running wheel 4 is bolted to the hub connector 3. A rotating bearing 9 is mounted within the hub connector 3 and connected to a rotating shaft 8. The rotating shaft 8 is fixed to the side panels 11 of the vehicle platform 1, with its axis horizontal. The rotating bearing 9 is a tapered roller bearing with end plates 101 and glands 102, along with built-in lubrication and dustproof seals. It offers high load capacity and is maintenance-free, saving costs.

[0041] The lever locking mechanism 2 includes an unlocking lever 21, a lever connecting base 22, a first fork 23, a second fork 24, a locking fork 25, a torsion spring 26, a return torsion spring 27, and a rotating lever 28. The two lever connecting bases 22 are fixed to the bottom of the front end of the vehicle platform 1. The rotating lever 28 is mounted on the lever connecting bases 22, and the torsion spring 26 is mounted on the rotating lever 28. The unlocking lever 21 is connected to the rotating lever 28. The rotating lever 28 is connected to the first fork 23 through a square opening. The first fork 23 is connected to the second fork 24, which is connected to the locking fork 25. The return torsion spring 27 is connected to the locking fork 25.

[0042] The present invention is provided with a limit beam 6 , and a limit is provided on the top of the front end of the vehicle body platform 1 to prevent the excavator from moving beyond the position of the limit beam 6 .

[0043] The wheel hub connector 3 is evenly distributed around its circumference with grooves 31 corresponding to the ends of the locking fork 25. The locking fork 25 is inserted into the groove 31. When the pressure rod locking mechanism 2 is not open, the wheel hub connector 3 cannot rotate, and consequently, the running wheel 4 connected to the wheel hub connector 3 cannot rotate. When the excavator track presses against the base plate 10 of the vehicle platform 1 and moves forward to contact the limit beam 6, the track contacts the unlocking pressure rod 21, thereby rotating the rotating rod 28. The rotating rod 28 drives the first fork 23, the second fork 24, and the locking fork 25 in a coordinated manner, causing the locking fork 25 to leave the groove 31 and release the lock. In the absence of external force, the locking fork 25 is reset under the elastic force of the torsion spring 26 and the reset torsion spring 27, achieving locking.

[0044] The working principle and working process of the present invention are as follows:

[0045] When in use, the excavator hooks the lifting rope 5 through the working arm, and lifts the two wheel blocks to the front of the excavator's crawler guide wheel respectively. The driving wheel first moves toward the wheel block and presses onto the vehicle body platform 1. Then the excavator rotates the working platform 180 degrees, and the driving wheel moves backward while supporting the ground with the working arm. When it hits the limit beam 6, it presses the locking fork 25 of the pressure rod locking mechanism 2 to unlock it and complete self-donning (the guide wheel leaves the ground on the vehicle).

[0046] At the same time, the transport vehicle moves to the front of the excavator, the excavator places its working arm on the transport vehicle, drives the vehicle to make the front driving wheel of the excavator leave the ground, and the transport vehicle moves through the auxiliary wheel pulley to drive the excavator to move.

[0047] After transporting to the desired location, the excavator's working arm is removed from the transport vehicle and the excavator is driven off the roller block. The roller block has a self-locking mechanism. When dismounting, the unlocking lever 21 is released, and the locking fork 25 is reset under the elastic force of the torsion spring 26 and the return spring 27, locking the excavator. After leaving the pulley, the excavator hoists the roller block onto the transport vehicle, which can then proceed to the next required location, meeting the needs of multiple vehicles being transported simultaneously.

[0048] The present invention centers around a lever locking mechanism 2, a mechanical, normally locked mechanism. It secures the wheel block when not in use, restricting its forward and backward movement. When an excavator moves onto the wheel block platform 1, the lever 21 is pressed to unlock the mechanism. After leaving the platform, the lever locking mechanism 2 automatically resets, enhancing safety and convenience during use. Because the lever locking mechanism 2 is mechanical, it offers greater practicality and fewer potential failure points than alternative mechanisms (electrical, hydraulic, etc.).

[0049] The present invention has a self-locking function, a low failure rate, and strong practicality. It can be quickly assembled and disassembled by relying solely on an excavator and is easy to use. It increases the excavator's transportation speed, reduces transportation costs, and eliminates damage to the road surface.

[0050] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A crawler excavator transport wheel block, characterized in that: The vehicle body comprises a vehicle body platform, a pressure rod locking mechanism, a wheel hub connecting seat and a running wheel; the running wheel is fixedly connected to the wheel hub connecting seat, and the wheel hub connecting seat is rotatably connected to a rotating shaft via a bearing, and the rotating shaft is fixedly connected to the vehicle body platform; the pressure rod locking mechanism prevents the wheel hub connecting seat from rotating around the rotating shaft, thereby locking the wheel hub connecting seat and restricting the running wheel from rotating; after the crawler excavator is pressed onto the vehicle body platform, the pressure drives the pressure rod locking mechanism to move, thereby unlocking the wheel hub connecting seat and enabling the wheel hub connecting seat to rotate around the rotating shaft, thereby enabling the running wheel to rotate; The vehicle body platform is U-shaped and includes a bottom plate and side plates vertically fixed to both ends of the bottom plate, and is made of high-strength steel plates welded together; The pressure rod locking mechanism includes an unlocking pressure rod, a pressure rod connecting seat, a rotating rod, a first fork, a second fork, a locking fork, a torsion spring and a return torsion spring; the pressure rod connecting seat is fixedly connected to the vehicle body platform, the rotating rod is installed on the pressure rod connecting seat, and the torsion spring is installed on the rotating rod; the unlocking pressure rod is connected to the rotating rod, the rotating rod is connected to the first fork, the first fork is connected to the second fork, the second fork is connected to the locking fork, and the return torsion spring is connected to the locking fork; The wheel hub connecting seat is evenly distributed with grooves corresponding to the locking fork head on the circumference; the locking fork head is inserted into the wheel hub connecting seat groove, so that the wheel hub connecting seat cannot rotate around the rotating shaft, thereby achieving locking; after the crawler excavator is pressed on the vehicle body platform, it continues to move forward, pressing the unlocking lever, driving the first fork, the second fork and the locking fork to work together, so that the locking fork leaves the wheel hub connecting seat groove, thereby achieving unlocking.

2. The crawler excavator transport wheel block according to claim 1, characterized in that: The upper surface of the bottom plate is provided with an anti-slip barrier strip.

3. The crawler excavator transport wheel block according to claim 1, characterized in that: It also includes a limiting beam, which is fixed to the top of the front end of the vehicle body platform.

4. The crawler excavator transport wheel block according to claim 1, characterized in that: The utility model also comprises a suspension rope, which is fixedly connected to the vehicle body platform through a pin shaft.

5. The crawler excavator transport wheel block according to claim 1, characterized in that: The running wheels are made of solid rubber tires.

6. The crawler excavator transport wheel block according to claim 1, characterized in that: The bearing adopts a tapered roller bearing, and the end is provided with a shaft end baffle and a pressure cover, and a built-in lubricating dustproof seal.

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