Caterpillar band flexible assembly paving system and working process thereof

Abstract

The invention belongs to the technical field of engineering machinery assembly workshops, relates to a track flexible assembly paving system and a working process thereof, is used for track assembly in the engineering machinery industry, and comprises a track spreading platform and track centering positioning platforms arranged on the two sides of the track spreading platform respectively, a crawler belt unfolding and winding package trolley is installed on the crawler belt centering and positioning platform, a transfer track of the frame transfer mechanism is reserved in the middle of the crawler belt unfolding and winding package trolley, and a shear fork lifting table used for being separated from the frame transfer mechanism and a frame is arranged on the transfer track. And one end of the crawler belt spreading platform is also respectively provided with two sunken crawler belt follow-up devices. The crawler belt assembling device improves the crawler belt assembling efficiency, reduces noise, improves the assembling precision and reduces the labor intensity of workers.

Description

Technical Field

[0001] The invention belongs to the technical field of engineering machinery assembly workshops and relates to a crawler flexible assembly and paving system and a working process thereof. Background Art

[0002] The crawler is an important part of the excavator's traveling mechanism. It enables the excavator to move flexibly in complex terrain and narrow spaces, and enhances the excavator's passability. The proper assembly of the crawler is essential for the normal operation of the excavator and can improve the stability and safety of the equipment.

[0003] The assembly of crawler tracks is usually completed by operators with the help of a crane, including spreading the track roll, assembling it with the frame, and wrapping it. With the advancement of industry technology, a variety of equipment to assist in crawler assembly has appeared in the industry, such as using wire ropes to pull the track for spreading and wrapping, or using semi-automatic trolleys to push the track for spreading, and cranes to lift and wrap it. The above-mentioned methods all have some shortcomings, resulting in high assembly noise, low efficiency, high labor intensity and low assembly precision, as follows: the crawler is spread by pulling the wire rope, which requires the operator to tow the wire rope. There is a safety risk of wire rope breakage, and the noise during the crawler unwinding process is relatively large; the crawler is spread by a semi-automatic trolley, and after a push plate mechanism for positioning the crawler is set at the front end of the trolley, the distance between the trolley and the crawler is large, and the trolley push rod arm is as long as 1800mm, resulting in poor rigidity of the trolley push rod, low crawler spreading efficiency and poor precision; after the crawler and frame are assembled, the crawler is wrapped by a crane or pulling the wire rope, which makes the crawler difficult to correct, low wrapping efficiency, high labor intensity, and certain safety risks. Summary of the invention

[0004] In view of this, the purpose of the present invention is to provide a crawler flexible assembly and paving system and its work flow, which are used for crawler assembly in the engineering machinery industry and have the characteristics of flexibility, efficient assembly, low noise, etc.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a crawler flexible assembly and paving system, used for crawler assembly in the engineering machinery industry, comprising a crawler spreading platform, and crawler centering and positioning platforms respectively arranged on both sides of the crawler spreading platform, a crawler unrolling and wrapping trolley is installed on the crawler centering and positioning platform, a transfer track of a frame transfer mechanism is reserved in the middle of the crawler spreading platform, and a scissors lift platform for detaching the frame transfer mechanism and the frame is arranged on the transfer track; two sunken crawler follower devices are also respectively arranged at one end of the crawler spreading platform.

[0006] Optionally, the tracked unwinding and wrapping trolley includes a trolley body, a trolley drive mechanism and a rocker arm drive mechanism arranged in the trolley body, and a track traction rocker arm connected to the rocker arm drive mechanism and arranged outside the trolley body; the trolley drive mechanism is connected to a chain arranged on a centering positioning platform, which is used for the lateral movement of the trolley on the track centering positioning platform, and the rocker arm drive mechanism is used to drive the rotation of the rocker arm, so that the track can be lifted to the assembly height when the track is reversed for wrapping.

[0007] Optionally, the track traction swing arm is detachably connected to the end of the track and is provided with a flexible swinging degree of freedom for flexibly dragging the track during the track unrolling process.

[0008] Optionally, a guide wheel and running wheels distributed around the guide wheel are arranged at the bottom of the trolley body, and the guide wheel is connected to a guide rail arranged on the centering positioning platform.

[0009] Optionally, the sunken track follower device includes a rear follower roller, a front follower roller, and a track follower chain arranged between the rear follower roller and the front follower roller. The track follower chain is arranged in the sunken track follower device and is axially perpendicular to the rear follower roller and the front follower roller.

[0010] Optionally, more than one crawler follower chain is provided, and each of them is rollingly arranged inside the sinking crawler follower device through rollers.

[0011] Optionally, the frame transfer mechanism is an RGV or AGV.

[0012] A workflow of a crawler flexible assembly paving system, applicable to a crawler flexible assembly paving system as described above, comprises the following steps:

[0013] S1, the assembler uses the crane to hoist the crawler into the sunken crawler follower device, and at the same time fixes the crawler traction swing arm of the crawler unwinding and wrapping trolley to the crawler end, and controls the trolley to move horizontally through the control system to pull the crawler to spread; during the crawler spreading process, the crawler follower chain, rear follower roller, and front follower roller of the sunken crawler follower device rotate synchronously with the crawler, reducing the friction during the crawler rotation process and reducing the noise during the crawler spreading process;

[0014] S2, after the crawler tracks are fully extended, the control system automatically controls the crawler track centering positioning platform to move inward according to the crawler track model, and automatically pushes the crawler tracks to the designated assembly position simultaneously;

[0015] S3, RGV or AGV carries the frame to the crawler assembly station of the scissor lift, the scissor lift automatically descends, and the supporting wheels, guide wheels, and driving wheels are automatically assembled with the crawler. At the same time, the scissor lift is lowered to the lowest position, and the RGV or AGV is separated from the frame and moves backward out of the assembly station;

[0016] S4, after the frame and crawler tracks are assembled, the control system automatically controls the crawler traction swing arm of the crawler track unrolling and wrapping trolley to swing upward, lift the crawler track to the assembly height, and the crawler track unrolling and wrapping trolley moves in the opposite direction, and the traction crawler track is assembled with the supporting wheels, guide wheels, and the upper part of the driving wheel;

[0017] S5, after the crawler track is assembled, the crawler track centering positioning platform moves outward to separate the traction swing arm from the crawler track, and the crawler track pin assembly is completed manually;

[0018] S6, after the track pin assembly is completed, the RGV or AGV moves to the assembly station, lifts the frame, and then transfers the frame to the next assembly station.

[0019] The beneficial effects of the present invention are as follows: the crawler flexible assembly paving system and the working process thereof of the present invention improve the crawler assembly efficiency, reduce noise, improve assembly accuracy, and reduce manual labor intensity.

[0020] Other advantages, objectives and features of the present invention will be described in the following description to some extent, and to some extent, will be obvious to those skilled in the art based on the following examination and study, or can be taught from the practice of the present invention. The objectives and other advantages of the present invention can be realized and obtained through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be described in detail below in conjunction with the accompanying drawings, wherein:

[0022] Figure 1 It is the overall configuration diagram of the present invention;

[0023] Figure 2 Schematic diagram of the crawler unrolling and wrapping trolley of the present invention, wherein Figure 2 (a) Main view, Figure 2 (b) is the left view;

[0024] Figure 3 It is a schematic diagram of the sinking crawler follower of the present invention.

[0025] Figure numerals: crawler spreading platform 1, crawler centering positioning platform 2, transfer track 3, crawler unrolling and wrapping trolley 4, trolley driving mechanism 401, crawler traction rocker arm 402, rocker arm driving mechanism 403, frame 5, scissors lift platform 6, sunken crawler follower device 7, rear follower roller 701, crawler follower chain 702, front follower roller 703. DETAILED DESCRIPTION

[0026] The following describes the embodiments of the present invention by specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the illustrations provided in the following embodiments only illustrate the basic concept of the present invention in a schematic manner, and the following embodiments and features in the embodiments can be combined with each other without conflict.

[0027] Among them, the drawings are only used for illustrative explanations, and they only represent schematic diagrams rather than actual pictures, and should not be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of actual products. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted.

[0028] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "rear", etc. indicate the orientation or position relationship, they are based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as limiting the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0029] See also Figure 1 to Figure 3, is a crawler flexible assembly paving system, used for crawler assembly in the engineering machinery industry, including a crawler spreading platform 1, and crawler centering and positioning platforms 2 respectively arranged on both sides of the crawler spreading platform 1, a crawler unrolling and wrapping trolley 4 is installed on the crawler centering and positioning platform 2, a transfer track 3 of a frame transfer mechanism is reserved in the middle of the crawler spreading platform 1, and a scissor lift 6 for detaching the frame transfer mechanism and the frame 5 is arranged on the transfer track 3; two sunken crawler follower devices 7 are also respectively arranged at one end of the crawler spreading platform 1, the crawler unrolling and wrapping trolley 4 includes a trolley body, a trolley driving mechanism 401 and a rocker driving mechanism 403 arranged in the trolley body, and a crawler traction rocker 402 connected to the rocker driving mechanism 403 and arranged outside the trolley body; the trolley driving mechanism 401 is connected to a chain arranged on the centering and positioning platform, which is used for the trolley to be centered in the crawler The trolley body 400 is a trolley that is used for lateral movement on the positioning platform 2. The rocker drive mechanism 403 is used to drive the rotation of the rocker. When the track is reversed and wrapped, the track can be lifted to the assembly height. The track traction rocker 402 is detachably connected to the end of the track and is provided with a flexible swinging degree of freedom for flexibly dragging the track during the track unwinding process. A guide wheel and walking wheels distributed around the guide wheel are provided at the bottom of the trolley body. The guide wheel is connected to a guide rail provided on the centering positioning platform. The sunken track follower device 7 includes a rear follower roller 701, a front follower roller 703, and a track follower chain 702 provided between the rear follower roller 701 and the front follower roller 703. The track follower chain 702 is provided in the sunken track follower device 7 and is axially perpendicular to the rear follower roller 701 and the front follower roller 703. The track follower chain 702 is provided with 3 chains, which are respectively rolled in the interior of the sunken track follower device 7 through roller shafts.

[0030] In this embodiment, the frame transfer mechanism is RGV or AGV.

[0031] In this embodiment, the track spreading platform 1 is a working table assembled after the track is spread; the track centering and positioning platform 2 and the track unrolling and wrapping trolley 4 are an integrated structure. During the track centering and positioning process, the trolley can move synchronously with the centering mechanism, greatly reducing the length of the trolley rocker arm working arm; the scissors lift 6 is used for the separation of the frame transfer mechanism from the frame 5 after the frame 5 and the track are assembled; the sunken track follower 7 is used for the track to follow the unrolling during the track spreading process, thereby reducing the noise during the spreading process.

[0032] In this embodiment, the crawler track centering and positioning platform 2 can automatically push the crawler track to the assembly station according to the model of the crawler track, and simultaneously correct the crawler track straightness.

[0033] A workflow of a crawler flexible assembly paving system, applicable to a crawler flexible assembly paving system as described above, comprises the following steps:

[0034] S1, the assembler uses the crane to hoist the crawler into the sunken crawler follower 7, and at the same time fixes the crawler traction swing rod 402 of the crawler unwinding and wrapping trolley 4 to the crawler end, and controls the trolley to move horizontally through the control system to pull the crawler to spread; during the crawler spreading process, the crawler follower chain 702, the rear follower roller 701, and the front follower roller 703 of the sunken crawler follower 7 all rotate synchronously with the crawler, reducing the friction during the crawler rotation process and reducing the noise during the crawler spreading process;

[0035] S2, after the crawler tracks are fully extended, the control system automatically controls the crawler track centering positioning platform 2 to move inward according to the crawler track model, and automatically pushes the crawler tracks to the designated assembly position simultaneously;

[0036] S3, the RGV or AGV carries the frame 5 to the crawler assembly station of the scissor lift 6, and the scissor lift 6 automatically descends to realize the automatic assembly of the supporting wheels, guide wheels, and driving wheels with the crawler. At the same time, the scissor lift 6 is lowered to the lowest position, and the RGV or AGV is separated from the frame 5 and moves backward out of the assembly station;

[0037] S4, after the frame 5 and the crawler track are assembled, the control system automatically controls the crawler traction swing rod 402 of the crawler track of the crawler unrolling and wrapping trolley 4 to swing upward, lift the crawler track to the assembly height, and the crawler unrolling and wrapping trolley 4 moves in the opposite direction, and the traction crawler track is assembled with the supporting wheels, guide wheels, and the upper part of the driving wheel;

[0038] S5, after the crawler track is assembled, the crawler track centering positioning platform 2 moves outward to separate the traction swing arm from the crawler track, and the crawler track pin assembly is completed manually;

[0039] S6, after the crawler pin assembly is completed, the RGV or AGV moves to the assembly station, lifts the frame 5, and then transfers the frame 5 to the next assembly station.

[0040] In this embodiment, the crawler flexible assembly and paving system can call the control program according to different machine models to realize automatic paving, positioning assembly, automatic wrapping, etc. of the crawler, which greatly improves the automation level of crawler assembly and reduces the intensity of manual labor.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution, which should be included in the scope of the claims of the present invention.

Claims

1. A crawler flexible assembly paving system, used for crawler assembly in the engineering machinery industry, Features: It includes a crawler spreading platform, and crawler centering and positioning platforms respectively arranged on both sides of the crawler spreading platform, a crawler unrolling and wrapping trolley is installed on the crawler centering and positioning platform, a transfer track of a frame transfer mechanism is left in the middle of the crawler spreading platform, and a scissor lift platform for separating the frame transfer mechanism and the frame is arranged on the transfer track; Two sunken track follower devices are also respectively arranged at one end of the track spreading platform.

2. A crawler flexible assembly paving system according to claim 1, Features: The crawler unrolling and wrapping trolley comprises a trolley body, a trolley driving mechanism and a swing rod driving mechanism arranged in the trolley body, and a crawler traction swing rod connected to the swing rod driving mechanism and arranged outside the trolley body; The trolley driving mechanism is connected to a chain arranged on the centering positioning platform, which is used for the lateral movement of the trolley on the track centering positioning platform. The rocker arm driving mechanism is used to drive the rotation of the rocker arm. When the track is reversed and wrapped, the track can be lifted to the assembly height.

3. A crawler flexible assembly paving system according to claim 2, Features: The track traction swing arm is detachably connected to the end of the track and is provided with a flexible swinging degree of freedom for flexibly dragging the track during the track unwinding process.

4. A crawler flexible assembly paving system according to claim 2, Features: A guide wheel and running wheels distributed around the guide wheel are arranged at the bottom of the trolley body, and the guide wheel is connected to a guide rail arranged on the centering positioning platform.

5. A crawler flexible assembly paving system according to claim 1, Features: The sinking crawler follower device comprises a rear follower roller, a front follower roller, and a crawler follower chain arranged between the rear follower roller and the front follower roller. The crawler follower chain is arranged in the sinking crawler follower device and is axially perpendicular to the rear follower roller and the front follower roller.

6. A crawler flexible assembly paving system according to claim 5, Features: More than one crawler follower chain is provided, and the chains are respectively arranged in a rolling manner inside the sinking crawler follower device through roller shafts.

7. A crawler flexible assembly paving system according to claim 1, Features: The frame transfer mechanism is RGV or AGV.

8. A working process of a crawler flexible assembly paving system, applicable to a crawler flexible assembly paving system as claimed in any one of claims 1 to 7, It is characterized in that The following steps are involved: S1, the assembler uses the crane to hoist the crawler into the sunken crawler follower device, and at the same time fixes the crawler traction swing arm of the crawler unwinding and wrapping trolley to the crawler end, and controls the trolley to move horizontally through the control system to pull the crawler to spread; during the crawler spreading process, the crawler follower chain, rear follower roller, and front follower roller of the sunken crawler follower device rotate synchronously with the crawler, reducing the friction during the crawler rotation process and reducing the noise during the crawler spreading process; S2, after the crawler tracks are fully extended, the control system automatically controls the crawler track centering positioning platform to move inward according to the crawler track model, and automatically pushes the crawler tracks to the designated assembly position simultaneously; S3, RGV or AGV carries the frame to the crawler assembly station of the scissor lift, the scissor lift automatically descends, and the supporting wheels, guide wheels, and driving wheels are automatically assembled with the crawler. At the same time, the scissor lift is lowered to the lowest position, and the RGV or AGV is separated from the frame and moves backward out of the assembly station; S4, after the frame and crawler tracks are assembled, the control system automatically controls the crawler traction swing arm of the crawler track unrolling and wrapping trolley to swing upward, lift the crawler track to the assembly height, and the crawler track unrolling and wrapping trolley moves in the opposite direction, and the traction crawler track is assembled with the supporting wheels, guide wheels, and the upper part of the driving wheel; S5, after the crawler track is assembled, the crawler track centering positioning platform moves outward to separate the traction swing arm from the crawler track, and the crawler track pin assembly is completed manually; S6, after the track pin assembly is completed, the RGV or AGV moves to the assembly station, lifts the frame, and then transfers the frame to the next assembly station.

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