Plunger type oil cylinder module for ultra-low transport vehicle wheel train, wheel train unit and transport vehicle

Abstract

The utility model discloses a plunger type oil cylinder module for an ultra-low transport vehicle wheel train, a wheel train unit and a transport vehicle. The plunger type oil cylinder module comprises a plunger rod, a guide rod, a cylinder barrel, a cylinder sleeve and a connecting end, the plunger rod is nested above the guide rod and moves relative to the guide rod in the axial direction, the plunger rod and the guide rod are arranged in the cylinder barrel, and an oil cavity is formed between the plunger rod and the guide rod; the cylinder sleeve is arranged outside the cylinder barrel in a sleeving mode, and the cylinder sleeve and the cylinder barrel rotate relatively. An oil way is inwards led into the upper portion of the plunger rod, the plunger rod is embedded in the oil way, the oil way is led to the oil cavity, and a connecting end is arranged at the connecting end of the oil way. An oil pipe line of the plunger type oil cylinder module is built in, space limitation is reduced, and the transportation height of the transport vehicle can be effectively reduced by adopting the plunger type oil cylinder module.

Description

TECHNICAL FIELD

[0001] The utility model belongs to AGV transport car technical field especially relates to the plunger type oil cylinder module for the wheel system of super low transport car, wheel system unit and transport car. BACKGROUND

[0002] With the rapid development of intelligent manufacturing, flexible logistics and automated warehousing system, as the core material handling equipment, the performance and application range of automatic guided vehicle (AGV) are constantly expanding. In specific application scenarios such as semiconductor production line, new energy battery manufacturing, precision electronic assembly and high-density stereoscopic warehouse, AGV is required to have extremely strict space limitations.

[0003] The traditional AGV walking mechanism design faces significant challenges in realizing ultra-low height: common lifting mechanisms (such as scissor type, screw type or traditional piston cylinder type) usually have complex structure, large volume and high height. When integrated into the AGV chassis for lifting the platform or wheel system, it will significantly increase the overall ground clearance and total height of the AGV, making it difficult to meet the "ultra-low" requirement. Although traditional hydraulic or pneumatic cylinders can provide a larger thrust, their cylinder body, piston rod and mounting structure usually occupy a larger space. SUMMARY

[0004] In order to overcome the shortcomings of the prior art method, the purpose of the utility model is to provide a plunger type oil cylinder module for the wheel system of super low transport car, a wheel system unit and a transport car, so that the oil pipe line of the plunger type oil cylinder module is built-in, the space limitation is reduced, and the plunger type oil cylinder module can effectively reduce the transport height of the transport car.

[0005] To achieve the above purpose, the utility model adopts the technical scheme: a plunger type oil cylinder module for the wheel system of super low transport car, comprising: a plunger rod, a guide rod, a cylinder barrel, a cylinder sleeve and a connecting end; the plunger rod is nested above the guide rod and moves axially, the plunger rod and the guide rod are placed in the cylinder barrel, and an oil cavity is formed between the plunger rod and the guide rod; the cylinder sleeve is sleeved outside the cylinder barrel and rotates relative to the cylinder barrel; an oil passage is led inward at the upper part of the plunger rod, the oil passage is embedded in the plunger rod and leads to the oil cavity, and a connecting end is provided at the connecting end of the oil passage.

[0006] Further, the guide rod adopts a convex structure, and the plunger rod adopts a concave structure; the convex structure and the concave structure are nested with each other, and the bottom of the guide rod is fixedly connected with the bottom of the cylinder barrel.

[0007] Further, an angle sensor is arranged at the bottom of the cylinder sleeve.

[0008] Further, first and second sliding sleeves are arranged above and below the cylinder sleeve between the cylinder sleeve and the cylinder barrel, and a cover plate is arranged at the top of the cylinder sleeve.

[0009] Further, a first sealing assembly and a second sealing assembly are arranged between upper and lower portions between the cylinder barrel and the plunger rod, and a dustproof ring is arranged at a top portion between the cylinder barrel and the plunger rod.

[0010] Based on the above-mentioned plunger type oil cylinder module for an ultra-low transport vehicle wheel system, the utility model further proposes a wheel system unit, which comprises a wheel system, and the wheel system is directly or indirectly mounted on the cylinder sleeve of the plunger type oil cylinder module for an ultra-low transport vehicle wheel system.

[0011] Based on the above-mentioned wheel system unit, the utility model further proposes a transport vehicle, wherein the wheel system unit is mounted on a vehicle frame of the transport vehicle, and the wheel system unit is connected with the vehicle frame through an outer edge of an upper end of the plunger rod and a positioning key.

[0012] The beneficial effects of adopting the technical scheme are as follows:

[0013] In the utility model, the oil circuit is built-in in the plunger type oil cylinder module, the oil circuit structure is simplified, the volume is reduced, and the application range is increased.

[0014] The plunger type oil cylinder module proposed in the utility model is used on a transport vehicle wheel system, so that the overall vehicle body height of the AGV is reduced, so as to be able to smoothly shuttle in the bottom of a space-limited equipment, below a low-height goods shelf or a closely-stacked material gap, maximize the vertical space utilization rate, and improve the warehouse density or adapt to a specific process flow. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Fig. 1 is a structural schematic view of a plunger type oil cylinder module for an ultra-low transport vehicle wheel system of the utility model;

[0016] Figure 2 Fig. 2 is a structural schematic view of an ascending state of the plunger type oil cylinder module for an ultra-low transport vehicle wheel system of the utility model;

[0017] Figure 3 Fig. 3 is a structural schematic view of a wheel system unit of the utility model;

[0018] Figure 4 Fig. 4 is a structural schematic view of a transport vehicle of the utility model;

[0019] In the utility model, 1 is a plunger type oil cylinder module, 2 is a wheel system unit, 3 is a vehicle frame, 11 is a plunger rod, 12 is a guide rod, 13 is a cylinder barrel, 14 is a cylinder sleeve, 15 is an oil cavity, 16 is an oil circuit, 17 is a connecting end, 18 is an angle sensor, 19 is a first sliding sleeve, 20 is a second sliding sleeve, 21 is a cover plate, 22 is a first sealing assembly, 23 is a second sealing assembly, 24 is a dustproof ring, and 25 is a positioning key. DETAILED DESCRIPTION

[0020] In order to make the utility model's purpose, technical scheme and advantages more clearly, the utility model will be further described below in conjunction with the drawings.

[0021] In the embodiment, referring to Figure 1 and Figure 2 It is shown that a kind of plunger type oil cylinder module for ultra-low transport wheel train, comprising: plunger rod 11, guide rod 12, cylinder 13, cylinder sleeve 14 and connecting end head 17;The plunger rod 11 is nested above guide rod 12 and relative axial movement, plunger rod 11 and guide rod 12 are placed in the cylinder 13, and oil cavity 15 is formed between plunger rod 11 and guide rod 12;The cylinder sleeve 14 is sleeved on the cylinder 13, and the cylinder sleeve 14 and the cylinder 13 are relatively rotated;Oil passage 16 is led into the upper part of the plunger rod 11, and the oil passage 16 is embedded in the plunger rod 11 and connected to the oil cavity 15, and the connecting end head 17 is provided on the connecting end of the oil passage 16.

[0022] Utilize connecting end head 17 to connect external hydraulic system;As Figure 2 It is shown that plunger rod 11 is lifted in cylinder 13, and when hydraulic system injects hydraulic oil into oil passage 16, plunger rod 11 rises;As Figure 1 It is shown that when hydraulic system uses oil passage 16 to extract hydraulic oil, plunger rod 11 falls under the action of vehicle body weight. The structure can effectively reduce the overall height of train, so as to reduce the height of vehicle body. Guide rod 12 provides guiding effect for the lifting of plunger rod 11.

[0023] As an optimization scheme of the above embodiment, the guide rod 12 adopts convex structure, and the plunger rod 11 adopts concave structure;Convex structure and concave structure are nested with each other, and the bottom of the guide rod 12 is fixedly connected with the bottom of the cylinder 13. The bottom of the guide rod 12 can be fixedly connected with the bottom of the cylinder 13 by screw.

[0024] As an optimization scheme of the above embodiment, angle sensor 18 is arranged at the bottom of the cylinder sleeve 14. The rotation angle of the cylinder sleeve 14 relative to the cylinder sleeve 14 can be detected.

[0025] As an optimization scheme of the above embodiment, first sliding sleeve 19 and second sliding sleeve 20 are arranged between the upper and lower parts of the cylinder sleeve 14 and the cylinder 13 respectively, and cover plate 21 is arranged at the top of the cylinder sleeve 14. First sliding sleeve 19 and second sliding sleeve 20 are used for positioning when the cylinder 13 rotates in the cylinder sleeve 14, similar to the function of bearing.

[0026] As an optimization scheme of the above embodiment, first sealing assembly 22 and second sealing assembly 23 are arranged between the upper and lower parts of the cylinder 13 and the plunger rod 11, and dust ring 24 is arranged at the top of the cylinder 13 and the plunger rod 11.

[0027] Referring to Figure 3As shown in the drawings, the wheel train unit 2 provided by the utility model embodiment, based on the above-mentioned plunger type oil cylinder module 1 for ultra-low transport wheel train, comprising a wheel train, the wheel train is directly or indirectly installed on the cylinder sleeve 14.

[0028] Referring to Figure 4 As shown in the drawings, the utility model embodiment provides a transport vehicle, based on the above-mentioned wheel train unit 2, installs it on the frame 3 of transport vehicle, and the wheel train unit 2 is connected with the frame 3 through the outer edge of the upper end of plunger rod 11 and positioning key 25.

[0029] The basic principle, main features and advantages of the utility model are shown and described above.The skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments, and the above-mentioned embodiments and the description in the specification are only to illustrate the principle of the utility model, and various changes and improvements can be made to the utility model without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed.The scope of protection of the utility model is defined by the appended claims and their equivalents.

Claims

1. An ultra-low transport wheel train with a plunger type oil cylinder module, characterized by, It includes: Plunger rod (11), guide rod (12), cylinder (13), cylinder sleeve (14) and connecting end (17); the plunger rod (11) is nested above the guide rod (12) and moves relatively in the axial direction, the plunger rod (11) and the guide rod (12) are placed in the cylinder (13), and the oil cavity (15) is formed between the plunger rod (11) and the guide rod (12); the cylinder sleeve (14) is sleeved outside the cylinder (13), and the cylinder sleeve (14) and the cylinder (13) rotate relatively; the oil passage (16) is led inward on the upper part of the plunger rod (11), the oil passage (16) is embedded in the plunger rod (11) and leads to the oil cavity (15), and the connecting end head (17) is arranged at the connecting end of the oil passage (16).

2. The ultra-low transport wheel axle plunger cylinder module of claim 1, wherein, The guide rod (12) adopts a convex structure, and the plunger rod (11) adopts a concave structure; the convex structure and the concave structure are nested with each other, and the bottom of the guide rod (12) is fixedly connected with the bottom of the cylinder (13).

3. The ultra-low transport wheel axle piston ram module of claim 1, wherein, An angle sensor (18) is arranged at the bottom of the cylinder sleeve (14).

4. The ultra-low transport wheel cylinder module of claim 1, wherein, First and second sliding sleeves (19) and (20) are arranged between the upper and lower parts of the cylinder sleeve (14) and the cylinder (13) respectively, and a cover plate (21) is arranged at the top of the cylinder sleeve (14).

5. The ultra-low transport wheel cylinder module of claim 1, wherein, First and second sealing assemblies (22) and (23) are arranged between the upper and lower parts of the cylinder (13) and the plunger rod (11), and a dustproof ring (24) is arranged at the top of the cylinder (13) and the plunger rod (11).

6. A wheelset unit with the ultra-low transport wheelset plunger cylinder module according to any one of claims 1 to 5, characterized in that It includes a wheel train, which is directly or indirectly mounted on the cylinder sleeve (14) of the plunger type oil cylinder module (1) for the ultra-low transport wheel train.

7. A transport vehicle with a wheel arrangement unit according to claim 6, characterized in that The wheel train unit (2) is mounted on the frame (3) of the transport vehicle, and the wheel train unit (2) is connected with the frame (3) through the outer edge of the upper end of the plunger rod (11) and the positioning key (25).

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