Head end transition wheel driving mechanism for chain conveyor

Abstract

The utility model discloses a head end transition wheel driving mechanism for a chain conveyor, which relates to the technical field of automatic transportation systems and comprises a driving mechanism shell, and a rotatable head end transition wheel is arranged in the driving mechanism shell. The head end transition wheel is composed of a wheel body with one end open and a transmission wheel integrally arranged at the other end of the wheel body, the inner wall of the transmission wheel is communicated with the inner wall of the wheel body, the driving mechanism shell is provided with a wheel shaft sequentially penetrating through the wheel body and the transmission wheel, and the wheel shaft is rotationally connected with the inner wall of the wheel body through two first bearings. The two ends of the wheel shaft are sleeved with the two metal wear-resisting sleeves respectively, the inner wall of the driving mechanism shell is symmetrically provided with the two containing chambers, and the metal wear-resisting sleeves are installed in the containing chambers on the corresponding sides in an interference fit mode, due to the fact that the first bearing is arranged, the head end transition wheel can rotate smoothly, and the operation efficiency and stability of the conveyor are improved.

Description

Technical Field

[0001] This utility model relates to the field of automated transportation system technology, specifically to a head-end transition wheel drive mechanism for a chain conveyor. Background Technology

[0002] Chain conveyors, also known as chain conveyors, are conveying devices that use chains for traction and load-bearing, or use slats, metal mesh belts, rollers, etc., mounted on the chain to carry materials. Chain conveyors are widely used in various industries such as food, beverage, pharmaceuticals, chemicals, metallurgy, power, and logistics distribution. Especially in industrial automated production lines, chain conveyors have become an indispensable piece of conveying equipment, playing a vital role in improving production efficiency and reducing labor intensity.

[0003] In existing chain conveyor drive mechanisms, the position of the head-end transition wheel is limited by the compact structural design and small space. Therefore, this transition wheel can only rotate by sliding through the shaft hole on a fixed head-end transition wheel shaft. It is worth noting that the linear speed of this wheel's rotation is roughly the same as that of the drive chain, resulting in extremely high speed. This high speed not only reduces the service life of the head-end transition wheel but also generates noise problems. More seriously, as the service life decreases, the wheel shaft may jam, thus affecting the normal operation of the entire conveyor. Utility Model Content

[0004] The purpose of this invention is to provide a head-end transition wheel drive mechanism for a chain conveyor to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a head-end transition wheel drive mechanism for a chain conveyor, comprising a drive mechanism housing, wherein a rotatable head-end transition wheel is disposed within the drive mechanism housing, characterized in that the head-end transition wheel consists of a wheel body with one end open and a transmission wheel integrally disposed at the other end of the wheel body, the inner wall of the transmission wheel communicating with the inner wall of the wheel body, the drive mechanism housing being provided with a wheel axle passing through the wheel body and the transmission wheel in sequence, the wheel axle being rotatably connected to the inner wall of the wheel body through two first bearings, two metal wear-resistant sleeves being respectively fitted at both ends of the wheel axle, and two accommodating chambers symmetrically disposed on the inner wall of the drive mechanism housing, the metal wear-resistant sleeves being interference-fitted into the corresponding accommodating chambers.

[0006] Furthermore, a bearing retaining sleeve is fitted onto the axle between the two first bearings.

[0007] Furthermore, the inner wall of the wheel body opening end and the inner wall of the transmission wheel away from the wheel body are rotatably connected to the outer wall of the wheel axle through the second bearing and the third bearing, respectively.

[0008] Furthermore, a first limiting ring and a second limiting ring are fixedly provided on the inner wall of the wheel body and the inner wall of the transmission wheel, respectively. The side walls of the first limiting ring and the second limiting ring that are far apart from each other abut against the side walls of the opposite side of the second bearing and the third bearing, respectively.

[0009] Furthermore, the wheel body is a hollow structure, and a connecting block is integrally provided at one end of the transmission wheel near the wheel body. The outer wall of the connecting block is interference-fitted with the inner wall of the wheel body. The connecting block is connected to the inner wall of the transmission wheel and has a mounting hole. The inner wall of the mounting hole is rotatably connected to the outer wall of the wheel axle through two fourth bearings. The diameter of the inner wall of the wheel body is greater than the diameter of the outer wall of the metal wear-resistant sleeve.

[0010] Furthermore, two third limiting rings are symmetrically and integrally provided on the inner wall of the mounting hole located between the two fourth bearings, and the side wall of the third limiting ring abuts against the side wall of the corresponding fourth bearing.

[0011] The beneficial effects achieved by this utility model are as follows:

[0012] The placement of the first bearing allows the head-end transition wheel to rotate smoothly, improving the conveyor's operating efficiency and stability.

[0013] The addition of the second and third bearings makes the force on each part of the head end transition wheel more even when it rotates, reducing mechanical wear caused by excessive local force and further extending the service life of the equipment. At the same time, the second and third bearings effectively disperse the pressure on the head end transition wheel, thereby avoiding the transmission wheel from being under constant force for a long time. This would cause the head end transition wheel to generate a lever effect with the first bearing near the transmission wheel as the fulcrum, which would cause the axle to be subjected to force at multiple angles and even cause the axle to bend. This greatly reduces the risk of the axle bending due to uneven force.

[0014] The interference fit between the wheel and the connecting block, combined with the fact that the inner diameter of the wheel is greater than the outer diameter of the metal wear-resistant sleeve, allows the wheel to be easily replaced after it wears out from long-term use. This greatly reduces maintenance costs and downtime caused by equipment repairs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the head-end transition wheel drive mechanism for a chain conveyor in Embodiment 1;

[0016] Figure 2 This is an exploded view of the head-end transition wheel in Embodiment 1;

[0017] Figure 3 This is a cross-sectional view of the head-end transition wheel in Embodiment 1;

[0018] Figure 4This is an exploded view of the head-end transition wheel in Embodiment 2;

[0019] Figure 5 This is a cross-sectional view of the head-end transition wheel in Embodiment 2;

[0020] Figure 6 This is an exploded view of the head-end transition wheel in Embodiment 3;

[0021] Figure 7 This is a cross-sectional view of the head-end transition wheel in Embodiment 3. Detailed Implementation

[0022] The present invention will be further described below with reference to the accompanying drawings. Example

[0023] like Figure 1-2 As shown, Embodiment 1 discloses a head-end transition wheel drive mechanism for a chain conveyor, comprising: a drive mechanism housing 1, wherein a rotatable head-end transition wheel 2 is disposed within the drive mechanism housing 1. The head-end transition wheel 2 is characterized in that it consists of a wheel body 21 with one end open and a transmission wheel 22 integrally disposed at the other end of the wheel body 21. The inner wall of the transmission wheel 22 is connected to the inner wall of the wheel body 21. The drive mechanism housing 1 is provided with a wheel axle 3 that passes through the wheel body 21 and the transmission wheel 22 in sequence. The wheel axle 3 is rotatably connected to the inner wall of the wheel body 21 through two first bearings 23. Two metal wear-resistant sleeves 31 are respectively sleeved at both ends of the wheel axle 3. Two accommodating chambers 11 are symmetrically arranged on the inner wall of the drive mechanism housing 1. The metal wear-resistant sleeves 31 are interference-fitted into the corresponding accommodating chambers 11.

[0024] Based on the above structure, such as Figure 1-2 As shown, the drive chain drives the wheel body 21 to rotate together through the transmission wheel 22. During the rotation of the wheel body 21, the inner circle of the first bearing 23 is fixed and the outer circle rotates, and the head end transition wheel 2 rotates smoothly, ensuring its service life.

[0025] Furthermore, such as Figure 3-4 As shown, in order to facilitate positioning when installing the two first bearings, a bearing limiting sleeve 32 is fitted on the wheel axle 3 between the two first bearings 23. The total length of the bearing limiting sleeve 32 and the combined width of the cross sections of the two first bearings 23 is equal to the width of the cross section of the inner wall 3 of the wheel body 21. Example

[0026] like Figure 4-5 As shown, the technical feature that distinguishes Embodiment 2 from Embodiment 1 is that the inner wall of the open end of the wheel body 21 and the inner wall of the transmission wheel 22 away from the wheel body 21 are rotatably connected to the outer wall of the wheel axle 3 through the second bearing 24 and the third bearing 25, respectively.

[0027] Based on the above structure, such as Figure 4-5As shown, during the rotation of the head-end transition wheel 2, both the second bearing 24 and the third bearing 25 have fixed inner circles and rotating outer circles. The arrangement of the second bearing 24 and the third bearing 25 ensures that the head-end transition wheel 2 maintains the same condition as in Embodiment 1, which uses only two bearings, while providing support to both ends of the head-end transition wheel 2. This avoids the leverage effect that occurs in Embodiment 1, where the transmission wheel 22 is subjected to long-term force, causing the head-end transition wheel 2 to use the first bearing 23 near the transmission wheel 22 as a fulcrum. The leverage effect applies pressure to the wheel axle 3 through the two first bearings 23, causing the wheel axle 3 to bend due to multi-angle force.

[0028] Furthermore, such as Figure 5 As shown, in order to facilitate the positioning and installation of the first limiting ring and the second limiting ring, the inner wall of the wheel body 21 and the inner wall of the transmission wheel 22 are respectively fixedly provided with the first limiting ring 26 and the second limiting ring 27. The side walls of the first limiting ring 26 and the second limiting ring 27 that are far apart from each other abut against the side walls of the second bearing 24 and the third bearing 25 on the opposite side. Example

[0029] like Figure 6-7 As shown, the technical feature that distinguishes Embodiment 3 from Embodiment 2 is that the wheel body 21 is a hollow structure, and the transmission wheel 22 is integrally provided with a connecting block 28 whose outer wall is interference-fitted with the inner wall of the wheel body 21 at one end near the wheel body 21. The connecting block 28 is connected to the transmission wheel 22 and has a mounting hole 29. The inner wall of the mounting hole 29 is rotatably connected to the outer wall of the wheel axle 3 through two fourth bearings 291. The inner wall diameter of the wheel body 21 is greater than the outer wall diameter of the metal wear-resistant sleeve 31.

[0030] Based on the above structure, such as Figure 4-5 As shown, during the rotation of the head end transition wheel 2, the transmission wheel 22 drives the wheel body 21 to rotate through the connecting block 28. During this process, both fourth bearings 291 have fixed inner circles and rotating outer circles. The interference fit between the wheel body 21 and the connecting block 28 makes it easy to replace the wheel body 21 after it wears out due to long-term use.

[0031] Furthermore, such as Figure 7 As shown, in order to facilitate the positioning and installation of the two fourth bearings, two third limiting rings 292 are symmetrically and integrally provided on the inner wall of the mounting hole 29 between the two fourth bearings 291. The side wall of the third limiting ring 292 abuts against the side wall of the corresponding fourth bearing 291.

[0032] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A head transition wheel drive mechanism for a chain conveyor, comprising a drive mechanism housing (1) in which a rotatable head transition wheel (2) is arranged, characterized in that The head end transition wheel (2) is composed of an open wheel body (21) and a transmission wheel (22) integrally arranged at the other end of the wheel body (21), the inner wall of the transmission wheel (22) is in communication with the inner wall of the wheel body (21), the drive mechanism shell (1) is provided with a wheel shaft (3) sequentially penetrating the wheel body (21) and the transmission wheel (22), the wheel shaft (3) is rotatably connected with the inner wall of the wheel body (21) through two first bearings (23), both ends of the wheel shaft (3) are respectively sleeved with two metal wear-resistant sleeves (31), the inner wall of the drive mechanism shell (1) is symmetrically provided with two accommodating chambers (11), and the metal wear-resistant sleeve (31) is interference fitted in the corresponding side accommodating chamber (11).

2. A head transition wheel drive mechanism for a chain conveyor as set forth in claim 1, characterized in that: The wheel shaft (3) between the two first bearings (23) is sleeved with a bearing limiting sleeve (32).

3. A head transition wheel drive mechanism for a chain conveyor as set forth in claim 1, characterized in that: The inner wall of the open end of the wheel body (21) and the inner wall of the transmission wheel (22) away from the wheel body (21) are rotatably connected with the outer wall of the wheel shaft (3) through the second bearing (24) and the third bearing (25) respectively.

4. A head transition wheel drive mechanism for a chain conveyor as set forth in claim 3, characterized in that: The inner wall of the wheel body (21) and the inner wall of the transmission wheel (22) are respectively fixedly provided with a first limiting ring (26) and a second limiting ring (27), the side walls of the first limiting ring (26) and the second limiting ring (27) away from each other are respectively abutted with the side walls of the opposite sides of the second bearing (24) and the third bearing (25).

5. A head transition wheel drive mechanism for a chain conveyor as set forth in claim 1, characterized in that: The wheel body (21) is a hollow structure, the transmission wheel (22) is integrally provided with a connecting block (28) with an outer wall interference connected with the inner wall of the wheel body (21) at one end close to the wheel body (21), the connecting block (28) and the transmission wheel (22) are in communication and provided with a mounting hole (29), the inner wall of the mounting hole (29) is rotatably connected with the outer wall of the wheel shaft (3) through two fourth bearings (291), and the inner wall diameter of the wheel body (21) is greater than the outer wall diameter of the metal wear-resistant sleeve (31).

6. A head transition wheel drive mechanism for a chain conveyor as set forth in claim 5, characterized in that: Two third limiting rings (292) are symmetrically and integrally arranged on the inner wall of the mounting hole (29) between the two fourth bearings (291), and the side wall of the third limiting ring (292) is abutted with the side wall of the corresponding fourth bearing (291).

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