Gear-driven trolley roller

Abstract

The utility model discloses a gear-driven trolley roller, which relates to the technical field of AGV (Automatic Guided Vehicle), and comprises a hub and a solid tire, the outer surface of the hub is sleeved with the solid tire, a fixed wheel plate is arranged on one side, close to the outside, of the hub, and a fixed bolt penetrates through the surface of the fixed wheel plate in a threaded manner; a transmission wheel shaft is arranged in the center of the interior of the hub, and planetary gears are annularly distributed on the periphery of the transmission wheel shaft. According to the gear-driven trolley roller, the solid tire is installed on the outer surface of the hub, good structural support is provided for an installed trolley, meanwhile, good pressure resistance can be achieved, in addition, the gear sleeve frame is used, three sets of planetary gears are installed in the gear sleeve frame in a delta-shaped structure, and the transmission wheel shaft is used in cooperation, so that the gear-driven trolley roller is convenient to use. And meanwhile, a transmission sleeve in meshed connection with the planetary gear is arranged outside the gear sleeve frame, so that tight power transmission can be provided for the whole small wheel structure, and the accuracy and high efficiency of power transmission are guaranteed to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of AGV vehicles, and particularly relates to a trolley roller with gear transmission. Background Technique

[0002] The trolley roller with gear transmission is a wheel that works based on the principle of gear transmission. It usually consists of a large wheel and a small wheel stacked together, and the large wheel drives the small wheel (rotating shaft) to rotate. This structure is called a gear transmission device. The edge of the gear is provided with teeth and is mainly used for power transmission devices.

[0003] Gear transmission includes various types such as spur gear transmission, helical gear transmission, and herringbone gear transmission, which are suitable for different application scenarios and requirements.

[0004] In practical applications, the trolley roller with gear transmission is commonly found in various devices that require precise control and high-efficiency power, such as automatic guided vehicles (AGVs), industrial handling vehicles, etc. These devices utilize the advantages of gear transmission to achieve precise movement and cargo transportation.

[0005] Conventional trolley rollers are driven by a driving device, which drives the rollers to rotate in cooperation with a coupling to provide power for the trolley to move forward. However, in this driving method, the accuracy in power transmission is relatively limited, and it is difficult to achieve relatively precise and efficient moving performance, thus affecting the operation accuracy of the trolley. At the same time, this structure also makes the structure between the roller and the driving device relatively complex and occupies a large amount of space.

[0006] Therefore, in view of this, research and improvement are carried out on the existing structure and deficiencies, and a trolley roller with gear transmission is proposed. Content of the Utility Model

[0007] The purpose of the utility model is to provide a trolley roller with gear transmission to solve the problems raised in the above background technique.

[0008] To achieve the above purpose, the utility model provides the following technical solution: A trolley roller with gear transmission includes a hub and a solid tire. The outer surface of the hub is sleeved and installed with a solid tire, and a fixed wheel plate is arranged on the outer side of the hub. Moreover, fixing bolts penetrate through the surface of the fixed wheel plate in a threaded manner. The center position inside the hub is provided with a transmission wheel shaft, and planetary gears are distributed around the transmission wheel shaft. Moreover, precision bearings are arranged around the planetary gears, and a transmission sleeve is arranged outside the precision bearings. At the same time, a sealing ring is installed at the connection between the transmission sleeve and the precision bearing. A gear sleeve frame is arranged between the planetary gear and the precision bearing, and a limiting hoop is installed inside the side of the gear sleeve frame far from the planetary gear.

[0009] Furthermore, the solid tire is tightly fixed to the outer surface of the wheel hub, and the side of the wheel hub close to the fixed wheel plate is also horizontally threaded with fixing bolts, and the fixing bolts are distributed and installed in a circular array structure with the wheel hub and the fixed wheel plate as the center.

[0010] Furthermore, the transmission axle is meshingly connected with the planetary gears, and the planetary gears are distributed in a circular array structure with the transmission axle as the center and are installed in three groups.

[0011] Furthermore, the precision bearings are symmetrically arranged in two groups, and the sealing rings are tightly sleeved on the outer surfaces of the precision bearings, and the interior of the transmission sleeve is provided with two groups of annular groove structures that match the sealing ring structures.

[0012] Furthermore, a toothed structure is provided in the middle of the inner surface of the transmission sleeve, and the planetary gear is meshedly connected with the inner wall of the transmission sleeve via the toothed structure, and precision bearings are embedded and installed at the front and rear ends of the transmission sleeve.

[0013] Furthermore, the planetary gears are installed in a ring array structure at one end of the gear sleeve, and the planetary gears are installed in a "品"-shaped structure around the edge of the transmission axle, and the transmission axle is horizontally arranged at the internal axis of the gear sleeve.

[0014] Furthermore, an annular groove structure for embedding a limiting hoop is opened inside the end of the gear sleeve away from the planetary gear, and the end of the gear sleeve on which the planetary gear is installed is arranged in the middle of the transmission sleeve, and the fixing bolts are used to connect the fixed wheel hub, the fixed wheel plate, the transmission sleeve and the gear sleeve.

[0015] Furthermore, the inner wall surface of the precision bearing is tightly fitted with the outer surface of one end of the gear sleeve where the planetary gear is installed, and the precision bearing is symmetrically installed on both sides of one end of the gear sleeve, and the end of the gear sleeve where the planetary gear is installed is provided with three sets of opening structures for meshing connection between the planetary gear and the inner wall of the transmission sleeve.

[0016] The utility model provides a gear-driven trolley roller, which has the following beneficial effects:

[0017] 1. In this utility model, a solid tire is installed on the outer surface of the wheel hub. Since the solid tire has a sufficiently high modulus of elasticity at 100% elongation, relatively high hardness, low permanent deformation, and good wear resistance, the entire small wheel is convenient to use under high loads. This enables the entire trolley wheel to have good low rolling resistance, low heat generation, and ultra-high load-bearing capacity, ensuring sufficient stability and mobility during vehicle movement. Additionally, since the solid tire carcass is composed entirely of rubber, it maximally guarantees the puncture resistance of the tire, fundamentally eliminating the potential tire puncture hazard during the load-bearing operation of industrial vehicles and in harsh working environments. Moreover, the solid tire has a small load and deformation amount, and good running stability. Due to its puncture and tear resistance and the need for no inflation, it avoids the heavy labor of frequent tire repair and replacement, and can improve the utilization rate and working efficiency of the vehicle.

[0018] 2. In this utility model, a gear sleeve holder and a transmission sleeve are respectively installed inside the wheel hub. At the same time, a transmission wheel shaft is arranged in the middle inside the gear sleeve holder, and three planetary gears arranged in a "pin" shape structure are meshed and connected to the side of the transmission wheel shaft. The side of the planetary gear away from the transmission wheel shaft is meshed and connected to the inner wall of the transmission sleeve. Therefore, when the drive motor drives the transmission wheel shaft to rotate horizontally along the axial direction, the planetary gears connected to it will be synchronously driven to rotate. At this time, the transmission sleeve meshed with the planetary gears will be driven to rotate axially. Therefore, the wheel hub equipped with the solid tire is connected and fixed to the gear sleeve holder through the connection of the fixed wheel plate and the fixed bolts, thereby realizing the rotation of the entire wheel. Through the use of the above structure, on the one hand, the structural transmission between the transmission wheel shaft and the planetary gears has relatively high transmission accuracy and efficiency, which can ensure the accuracy and high efficiency of power transmission. On the other hand, compared with other transmission methods, the structure of gear transmission is more compact, occupies less space, and can optimize the structure volume of the wheel itself and the transmission at one time. At the same time, the use of the structure of the planetary gears and the transmission sleeve in cooperation with the gear sleeve holder provides good structural support inside the entire wheel, thereby ensuring the stability of the overall structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic axonometric view of the body of a trolley wheel with gear transmission according to this utility model;

[0020] Figure 2 It is an exploded structure schematic view of the body of a trolley wheel with gear transmission according to this utility model;

[0021] Figure 3 It is an exploded structure schematic view of the body of a trolley wheel with gear transmission according to this utility model;

[0022] Figure 4 It is a schematic cross-sectional view of the body of a trolley wheel with gear transmission according to this utility model;

[0023] Figure 5 This is a schematic cross-sectional view of the body of a small car wheel with a gear drive according to the present utility model.

[0024] In the figure: 1, hub; 2, solid tire; 3, fixed wheel plate; 4, fixing bolt; 5, drive wheel shaft; 6, planetary gear; 7, precision bearing; 8, drive sleeve; 9, sealing ring; 10, gear sleeve holder; 11, limit hoop. Specific embodiments

[0025] The following further describes in detail the embodiments of the present utility model with reference to the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0026] As Figures 1 to 5 shown, a small car wheel with a gear drive includes a hub 1 and a solid tire 2. The outer surface of the hub 1 is sleeved and installed with a solid tire 2, and a fixed wheel plate 3 is provided on the outer side of the hub 1. Moreover, a fixing bolt 4 threadedly penetrates through the surface of the fixed wheel plate 3. The center position inside the hub 1 is provided with a drive wheel shaft 5, and planetary gears 6 are arranged in a ring around the drive wheel shaft 5. Moreover, precision bearings 7 are arranged around the planetary gears 6, and a drive sleeve 8 is provided outside the precision bearings 7. At the same time, a sealing ring 9 is installed at the connection between the drive sleeve 8 and the precision bearing 7. A gear sleeve holder 10 is arranged between the planetary gear 6 and the precision bearing 7, and a limit hoop 11 is installed inside the side of the gear sleeve holder 10 away from the planetary gear 6. The solid tire 2 is tightly attached and fixed to the outer surface of the hub 1, and a fixing bolt 4 also horizontally threadedly penetrates through the side of the hub 1 close to the fixed wheel plate 3. Moreover, the fixing bolts 4 are respectively arranged and installed in an annular array structure with the hub 1 and the fixed wheel plate 3 as the centers. By installing a solid tire 2 on the outer surface of the hub 1, since the solid tire 2 has a sufficiently high modulus at 100% elongation, a relatively high hardness, a low permanent deformation, and good wear resistance, the entire small wheel is convenient to use under high loads, so that the entire small car wheel has good low rolling resistance, low heat generation, and ultra-high load-carrying capacity.

[0027] As Figures 1 to 5As shown in the figure, the drive wheel shaft 5 is meshed with the planetary gear 6, and three sets of planetary gears 6 are arranged and installed in an annular array structure with the drive wheel shaft 5 as the center. Two sets of precision bearings 7 are symmetrically arranged, and the sealing ring 9 is tightly sleeved on the outer surface of the precision bearing 7. Moreover, two annular groove structures matching the structure of the sealing ring 9 are opened inside the transmission sleeve 8. A toothed structure is opened in the middle of the inner surface of the transmission sleeve 8, and the planetary gear 6 is meshed with the inner wall of the transmission sleeve 8 through the toothed structure. Moreover, the precision bearing 7 is fitted and installed at the front and rear ends inside the transmission sleeve 8. The planetary gear 6 is arranged and installed at one end inside the gear sleeve bracket 10 in an annular array structure, and the planetary gear 6 is arranged around the edge of the drive wheel shaft 5 in a "pin" shape structure. Moreover, the drive wheel shaft 5 is horizontally arranged at the inner center of the gear sleeve bracket 10. An annular groove structure for embedding the limit hoop 11 is opened at one end of the gear sleeve bracket 10 away from the planetary gear 6, and the end of the gear sleeve bracket 10 where the planetary gear 6 is installed is arranged in the middle inside the transmission sleeve 8. Moreover, the fixing bolt 4 is used to connect and fix the hub 1, the fixed wheel plate 3, the transmission sleeve 8 and the gear sleeve bracket 10. The inner wall surface of the precision bearing 7 is closely attached to the outer surface of the end of the gear sleeve bracket 10 where the planetary gear 6 is installed, and the precision bearing 7 is symmetrically installed at both sides of one end of the gear sleeve bracket 10. Moreover, three opening structures are opened at the end of the gear sleeve bracket 10 where the planetary gear 6 is installed for meshing connection between the planetary gear 6 and the inner wall of the transmission sleeve 8. Therefore, when the drive motor drives the drive wheel shaft 5 to rotate horizontally axially, the planetary gear 6 connected thereto will be synchronously driven to rotate. At this time, the transmission sleeve 8 meshed with the planetary gear 6 will be driven to rotate axially. Therefore, the hub 1 equipped with the solid tire 2 is connected and fixed to the gear sleeve bracket 10 through the fixed wheel plate 3 and the fixing bolt 4, so as to realize the stable rotation of the entire roller.

[0028] In summary, as Figures 1 to 5 shown in the figure, when the gear-driven trolley roller is in use, first, when the drive unit drives the drive wheel shaft 5 connected thereto to rotate axially through the coupling, three sets of planetary gears 6 meshed with the surface of one end thereof will rotate axially inside the gear sleeve bracket 10 provided with the limit hoop 11;

[0029] As the three sets of planetary gears 6 rotate, the transmission sleeve 8 sleeved on one end of the gear sleeve bracket 10 by the two precision bearings 7 starts to rotate axially because its inner wall is meshed with the planetary gear 6. Therefore, the sealing ring 9 arranged between the transmission sleeve 8 and the precision bearing 7 can effectively ensure the tightness of the connection between the structures;

[0030] Since the wheel hub 1 with a solid tire 2 installed on the outside, its inner side is connected with the transmission sleeve 8 and the gear sleeve frame 10 with the assistance of the fixed wheel plate 3, and is fixed with the connection of several fixing bolts 4, when the transmission sleeve 8 rotates, it will drive the wheel hub 1 to rotate, so that the solid tire 2 installed on its surface rolls on the ground, thereby moving the vehicle.

[0031] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A trolley wheel driven by a gear, comprising a hub (1) and a solid tire (2), characterized in that: A solid tire (2) is sleeved and installed on the outer surface of the wheel hub (1). A fixing wheel plate (3) is arranged on the outer side of the wheel hub (1). A fixing bolt (4) penetrates through the surface of the fixing wheel plate (3) in a threaded manner. A transmission wheel shaft (5) is arranged at the central position inside the wheel hub (1). Planet gears (6) are distributed in a circular array around the transmission wheel shaft (5). Precision bearings (7) are arranged around the planet gears (6). A transmission sleeve (8) is arranged outside the precision bearings (7). A sealing ring (9) is installed at the joint between the transmission sleeve (8) and the precision bearings (7). A gear sleeve frame (10) is arranged between the planet gears (6) and the precision bearings (7). A limiting hoop (11) is installed inside one side of the gear sleeve frame (10) far away from the planet gears (6).

2. The trolley roller with gear drive according to claim 1, characterized in that, The solid tire (2) is tightly fixed to the outer surface of the wheel hub (1). Fixing bolts (4) also horizontally penetrate through the side of the wheel hub (1) close to the fixing wheel plate (3) in a threaded manner. The fixing bolts (4) are distributed and installed in a circular array structure with the wheel hub (1) and the fixing wheel plate (3) as the centers respectively.

3. A trolley wheel with gear transmission according to claim 1, characterized in that, The transmission wheel shaft (5) is meshed with the planet gears (6). Three planet gears (6) are distributed and installed in a circular array structure with the transmission wheel shaft (5) as the center.

4. A trolley wheel with gear drive according to claim 1, characterized in that, Two groups of precision bearings (7) are symmetrically arranged. The sealing ring (9) is tightly sleeved on the outer surface of the precision bearings (7). Two annular groove structures matching the structure of the sealing ring (9) are formed inside the transmission sleeve (8).

5. A trolley wheel with a gear drive according to claim 1, characterized in that, A toothed structure is formed in the middle of the inner surface of the transmission sleeve (8). The planet gears (6) are meshed with the inner wall of the transmission sleeve (8) through the toothed structure. The precision bearings (7) are fitted and installed at the front and rear ends inside the transmission sleeve (8).

6. The trolley roller with a gear drive according to claim 1, characterized in that, The planet gears (6) are arranged and installed in a circular array structure at one end inside the gear sleeve frame (10). The planet gears (6) are arranged in a "pin" - shaped structure around the edge of the transmission wheel shaft (5). The transmission wheel shaft (5) is horizontally arranged at the central axis inside the gear sleeve frame (10).

7. A trolley wheel with a gear drive according to claim 1, characterized in that, An annular groove structure for embedding the limiting hoop (11) is formed inside the end of the gear sleeve frame (10) far away from the planet gears (6). The end of the gear sleeve frame (10) where the planet gears (6) are installed is arranged in the middle inside the transmission sleeve (8). The fixing bolts (4) are used to connect and fix the wheel hub (1), the fixing wheel plate (3), the transmission sleeve (8) and the gear sleeve frame (10).

8. A trolley wheel with a gear drive according to claim 1, characterized in that The inner wall surface of the precision bearings (7) is tightly attached to the outer surface of the end of the gear sleeve frame (10) where the planet gears (6) are installed. The precision bearings (7) are symmetrically installed at the two sides of one end of the gear sleeve frame (10) in the front and rear. Three opening structures are formed at the end of the gear sleeve frame (10) where the planet gears (6) are installed for the planet gears (6) to be meshed with the inner wall of the transmission sleeve (8).

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