Double-rim belt supporting wheel structure with Y-shaped connecting shaft

Abstract

The invention relates to the technical field of tracked armored vehicles, and particularly discloses a Y-shaped connecting shaft double-rim belt supporting wheel structure. The double-rim belt supporting wheel structure with the Y-shaped connecting shaft is characterized by comprising the Y-shaped belt supporting wheel connecting shaft, a bearing, a belt supporting wheel body, a locking nut, an end cover and a fastener. Compared with a traditional structure, the Y-shaped connecting shaft structure and the Y-shaped structure characteristic in the middle of the shaft part are used for avoiding the induction teeth, the design size of the belt supporting wheel body is greatly reduced, the problems that the arrangement space of the wheel body is deficient and the weight is too large are effectively solved, and the belt supporting wheel has the advantages of being small and exquisite in structure and reliable in work and is suitable for most tracked vehicles.

Description

Technical Field

[0001] The invention relates to the technical field of tracked armored vehicles, and specifically discloses a Y-type connecting shaft double-wheel flange track roller structure. Background Art

[0002] At present, the track rollers of tracked armored vehicles are arranged on the outside of the vehicle body, one end of the shaft is fixed to the vehicle body, and the wheel rim supports the upper track to prevent the track from sagging too much and derailing. There are two main types of track rollers: single wheel and double wheel; the single wheel track roller has a simple structure and is suitable for situations where the requirements for track support are not complicated. Its structure does not need to avoid the induction teeth. The double wheel towing roller can provide more stable track support than the single wheel track roller. Its structure avoids the induction teeth through the special-shaped track roller body.

[0003] At present, the double-flange support roller axle adopts a straight axis and a special-shaped support roller body to achieve the purpose of avoiding the induction tooth. For this purpose, a very large support roller body is required, which is very unfavorable for space arrangement and does not meet the lightweight design requirements.

[0004] Therefore, it is necessary to design a double-rim pulley structure with a smaller wheel body and sufficient space in the middle to allow the induction gear to pass easily. Summary of the invention

[0005] The purpose of the present invention is to design a Y-type connecting shaft double-wheel flange support wheel structure to overcome the above technical problems in view of the lack of space for wheel arrangement and the excessive weight.

[0006] The present invention is achieved through the following technical solutions:

[0007] In a first aspect, the present invention provides a Y-type connecting shaft double-rim roller structure, comprising a Y-type roller connecting shaft 1, a dust ring 2, a bearing 4, a roller body 5, a locking nut 6, an end cover 7 and a fastener;

[0008] The middle connecting part of the Y-type support roller connecting shaft 1 is Y-shaped, including an upper shaft part and a lower shaft part; a U-shaped groove is arranged in the center of the upper shaft part, symmetrical stepped shafts are arranged on the outer walls on both sides, and the shaft ends are provided with external threads; the lower shaft part is a stepped shaft connected to the middle position of the lower end surface of the upper shaft part;

[0009] Two bearings 4 are arranged on the stepped shaft on the single side outer wall of the shaft upper part of the Y-type support roller connecting shaft 1, and are respectively located on both sides of the support roller body 5; one end of the bearing 4 of the near Y-type support roller connecting shaft 1 is positioned by the shaft shoulder, and the other end is positioned by the support roller body 5; one end of the ball bearing 4 of the far Y-type support roller connecting shaft 1 is positioned by the support roller body 5, and the other end is locked by the locking nut 6;

[0010] The inner sides of the supporting roller body 5 are provided with bearing mounting holes, which cooperate with the two bearings 4; the outer rim of the supporting roller body 5 supports the upper track; the end surface structure of the supporting roller body 5 on the side far from the Y-shaped supporting roller connecting shaft 1 cooperates with the end cover 7 and is fixed by fasteners.

[0011] Preferably, the vulcanized rubber support on the outer side of the rim of the track supporting wheel body 5 supports the upper track.

[0012] Preferably, a weight-reducing hole is provided at the center of each stepped shaft on the Y-type support roller connecting shaft 1 .

[0013] Preferably, the bearing 4 is a ball bearing.

[0014] Preferably, the fasteners include a combination gasket 8 and a bolt 9; and corresponding threaded holes are provided on the end cover 7 and the support wheel body 5 for installation.

[0015] Furthermore, the threaded holes and fasteners are provided in four groups in total and are symmetrically distributed on the circumferential surfaces of the end cover 7 and the support roller body 5 .

[0016] Preferably, the matching structure between the end cover 7 and the support roller body 5 is a circular flange structure.

[0017] Preferably, a winding structure is provided on one side of the support roller body 5 near the Y-shaped support roller connecting shaft 1 to cooperate with the dust ring 2 .

[0018] Preferably, a sealing ring 3 is provided on the stepped shaft circumference of the upper part of the Y-type support roller connecting shaft 1 for sealing.

[0019] In a second aspect, the present invention provides an application of the Y-type connecting shaft double-rim track roller structure described in the first aspect to a tracked armored vehicle.

[0020] When the vehicle is running, the wheel rim of the track roller supports the upper track rolling surface. When the track passes over the track roller, the induction tooth can easily pass through the middle gap of the Y-shaped shaft of the track roller.

[0021] The beneficial effects of the present invention are:

[0022] Compared with the traditional structure, the present invention utilizes a Y-shaped connecting shaft structure. The Y-shaped structural feature in the middle of the shaft avoids the induction tooth, greatly reducing the design size of the track roller body, effectively solving the problems of lack of space for wheel body layout and excessive weight, and has the advantages of compact structure and reliable operation, and is suitable for most tracked vehicles. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 An exploded view of the Y-type support roller connecting shaft structure of the present invention;

[0024] Figure 2 This is a diagram showing the structure coordination of the Y-type support roller connecting shaft of the present invention. DETAILED DESCRIPTION

[0025] In order to better illustrate the purpose, technical solutions and advantages of the present invention, the following is a further description in conjunction with the accompanying drawings and embodiments. It should be understood that the embodiments are only used to illustrate the technical effects of the present invention, and are not used to limit the scope of protection of the present invention.

[0026] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0027] Example 1

[0028] A Y-type connecting shaft double-wheel flange supporting roller structure, comprising a Y-type supporting roller connecting shaft 1, a dust ring 2, a sealing ring 3, a bearing 4, a supporting roller body 5, a locking nut 6, an end cover 7, a combination gasket 8, and a bolt 9;

[0029] The middle connection part of the Y-type support roller connecting shaft 1 is Y-shaped, including an upper shaft part and a lower shaft part; a U-shaped groove is provided in the center of the upper shaft part, symmetrical stepped shafts are provided on the outer walls on both sides, and the shaft ends have external threads; the lower shaft part is a stepped shaft, which is connected to the center position of the lower end surface of the upper shaft part; a weight-reducing hole is provided in the center of each stepped shaft on the Y-type support roller connecting shaft 1.

[0030] Two bearings 4 are provided on the stepped shaft on the single-side outer wall of the upper part of the Y-type roller connecting shaft 1, which are respectively located on both sides of the roller body 5; one end of the bearing 4 of the near Y-type roller connecting shaft 1 is positioned by the shaft shoulder, and the other end is positioned by the roller body 5; one end of the ball bearing 4 of the far Y-type roller connecting shaft 1 is positioned by the roller body 5, and the other end is locked by the locking nut 6; the bearing 4 is a ball bearing.

[0031] The inner sides of the supporting roller body 5 are provided with bearing mounting holes, which cooperate with the two bearings 4; the outer side of the wheel rim of the supporting roller body 5 is supported by the vulcanized rubber support upper track; the supporting roller body 5 is provided with a winding structure on one side of the Y-shaped supporting roller connecting shaft 1 to cooperate with the dust ring 2, and the end surface structure on the other side cooperates with the end cover 7 and is fixed by fasteners. The end cover 7 and the supporting roller body 5 are provided with corresponding threaded holes for installation. There are four groups of threaded holes and fasteners, which are symmetrically distributed on the circumferential surfaces of the end cover 7 and the supporting roller body 5. The matching structure of the end cover 7 and the supporting roller body 5 is a circular flange structure.

[0032] A sealing ring 3 is provided on the stepped shaft circumference of the upper part of the Y-type support roller connecting shaft 1 for sealing.

[0033] After application, when the vehicle is running, the rim of the track roller supports the upper track rolling surface. When the track passes over the track roller, the induction tooth can easily pass through the middle gap of the Y-shaped shaft of the track roller.

Claims

1. A Y-type connecting shaft double-rim pulley structure, characterized in that: It comprises a Y-shaped support roller connecting shaft (1), a bearing (4), a support roller body (5), a locking nut (6), an end cover (7) and a fastener; The middle connection part of the Y-type support roller connecting shaft (1) is Y-shaped, comprising an upper shaft part and a lower shaft part; a U-shaped groove is arranged at the center of the upper shaft part, and symmetrical stepped shafts are arranged on the outer walls on both sides; the lower shaft part is a stepped shaft connected to the middle position of the lower end surface of the upper shaft part; Two bearings (4) are provided on the stepped shaft on one side of the outer wall of the upper part of the Y-type support roller connecting shaft (1), and are respectively located on both sides of the support roller body (5); one end of the bearing (4) of the near Y-type support roller connecting shaft (1) is positioned by the shaft shoulder, and the other end is positioned by the support roller body (5); one end of the ball bearing (4) of the far Y-type support roller connecting shaft (1) is positioned by the support roller body (5), and the other end is locked by a locking nut (6); The inner sides of the supporting roller body (5) are provided with bearing mounting holes for cooperating with two bearings (4); the outer side of the wheel rim of the supporting roller body (5) supports the upper track; the end surface structure of the supporting roller body (5) on one side far from the Y-shaped supporting roller connecting shaft (1) is cooperating with the end cover (7) and is fixed by fasteners.

2. The Y-shaped connecting shaft double-rim pulley structure according to claim 1, characterized in that: The vulcanized rubber on the outside of the wheel rim of the support wheel body (5) supports the upper crawler track.

3. The Y-shaped connecting shaft double-rim support roller structure according to claim 1, characterized in that: A weight-reducing hole is provided at the center of each stepped shaft on the Y-shaped support roller connecting shaft (1).

4. The Y-shaped connecting shaft double-rim pulley structure according to claim 1, characterized in that: The bearing (4) is a ball bearing.

5. The Y-shaped connecting shaft double-rim support roller structure according to claim 1, characterized in that: The fasteners include a combination pad (8) and a bolt (9); the end cover (7) and the support wheel body (5) are provided with corresponding threaded holes for installation.

6. The Y-shaped connecting shaft double-rim support roller structure according to claim 5, characterized in that: The threaded holes and fasteners are provided in four groups in total and are symmetrically distributed on the circumferential surfaces of the end cover (7) and the support wheel body (5).

7. The Y-shaped connecting shaft double-rim support roller structure according to claim 1, characterized in that: The matching structure between the end cover (7) and the supporting wheel body (5) is a circular flange structure.

8. The Y-shaped connecting shaft double-rim support roller structure according to claim 1, characterized in that: A winding structure is provided on one side of the belt support roller body (5) near the Y-shaped belt support roller connecting shaft (1) to cooperate with the dustproof ring (2).

9. The Y-shaped connecting shaft double-rim support roller structure according to claim 1, characterized in that: A sealing ring (3) is provided on the stepped shaft circumference of the upper part of the Y-type support roller connecting shaft (1) for sealing.

10. Application of the Y-shaped connecting shaft double-rim track roller structure as described in any one of claims 1 to 9 in a tracked armored vehicle.

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