Split type chain wheel assembly

Abstract

The invention discloses a split type chain wheel assembly, which relates to the technical field of mechanical transmission equipment and comprises a first floating seal seat, a second floating seal seat, a bearing seat, a movable floating seal ring and a static floating seal ring, a mounting cavity and a gap for communicating the mounting cavity with the outside are defined between the first floating seal seat and the second floating seal seat, and the floating seal ring assembly is arranged in the mounting cavity; when the floating seal ring assembly is damaged and needs to be maintained or replaced, the floating seal ring assembly can be taken out only by dismantling the end cover, the bearing seat and the bearing. When the spline sleeve is damaged, the spline sleeve can be taken out only by dismantling the end cover and the protective sleeve, the whole chain wheel assembly does not need to be transported to the ground from a mine, and compared with the prior art, the maintenance time of the floating seal ring assembly and the spline sleeve can be greatly shortened, and the working efficiency is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission equipment, in particular to a split sprocket assembly. Background Art

[0002] Sprocket assemblies are common transmission components in mechanical equipment, used to transmit rotational motion and torque. They are widely used in equipment such as coal mine scraper conveyors and chute scraper transfer machines, transmitting power and driving the scraper chain. The floating seal mechanism, integrated into the sprocket assembly, is a key structure for sealing and lubrication. Its primary function is to prevent lubricant leakage and the ingress of foreign matter. It generally includes components such as a floating seal seat, a floating seal ring, and a sealing ring.

[0003] When the sprocket rotates, one floating seal ring rotates with the sprocket while the other float ring remains relatively stationary. The sealing end faces of the two float rings are in close contact with each other, forming a sealing surface. During the use of the sprocket assembly, the floating seal mechanism is very easy to damage. The floating seal mechanism is closely connected to the main body of the sprocket assembly. Generally, the entire sprocket assembly needs to be transported from the mine to the surface for repair or replacement of the floating seal mechanism. The whole process is very time-consuming and affects the construction schedule.

[0004] Similarly, the spline shaft is integrated into the sprocket assembly and is a matching component of the sprocket assembly and the drive mechanism, and also has the problem of inconvenience in maintenance and replacement.

[0005] In view of this, how to provide a sprocket assembly that is easy to repair and replace the floating seal mechanism and the spline sleeve is a problem that needs to be urgently solved by those skilled in the art. Summary of the Invention

[0006] The purpose of the present invention is to provide a split sprocket assembly to solve the problems existing in the prior art.

[0007] To achieve the above object, the present invention provides a split sprocket assembly having a main shaft and a sprocket body outside the main shaft, comprising:

[0008] A bearing seat is provided with a bearing, and the sprocket body is connected to the bearing;

[0009] A first floating seal seat is provided at one end of the bearing seat;

[0010] A spline sleeve is provided at one end of the sprocket body and is used to cooperate with the spline of the driving mechanism;

[0011] a second floating seal seat, sleeved on the outer side of the spline sleeve, wherein the first floating seal seat and the second floating seal seat define an installation chamber and a gap communicating the installation chamber with the outside;

[0012] a dynamic floating seal ring, arranged in the installation chamber, with its outer side connected to the second floating seal seat and its inner side spaced apart from the spline sleeve;

[0013] a static floating seal ring, arranged in the installation chamber, with its outer side connected to the first floating seal seat, its inner side spaced apart from the spline sleeve, and the end faces of the dynamic floating seal ring and the static floating seal ring in contact;

[0014] The end cover is arranged on a side of the spline sleeve away from the second floating seal seat, and the end cover is connected to the sprocket body.

[0015] Furthermore, the spline sleeve is connected to the sprocket body through fastening bolts.

[0016] Furthermore, a sheath is provided on the outer side of the spline sleeve.

[0017] Furthermore, the side of the second floating seal seat corresponding to the first floating seal seat is recessed inward to form a first mounting groove, the dynamic floating seal ring is arranged in the first mounting groove, and a first sealing ring is arranged between the dynamic floating seal ring and the inner side wall of the first mounting groove; the side of the first floating seal seat corresponding to the second floating seal seat is recessed inward to form a second mounting groove, the static floating seal ring is arranged in the second mounting groove, and a second sealing ring is arranged between the static floating seal ring and the inner side wall of the second mounting groove.

[0018] The present invention discloses the following technical effects:

[0019] 1. When the floating seal ring assembly is damaged and needs to be repaired or replaced, it can be taken out by removing only the end cover, bearing seat and bearing. There is no need to transport the entire sprocket assembly from the mine to the ground. Compared with the existing technology, it can greatly reduce the maintenance time of the floating seal ring assembly and improve work efficiency.

[0020] 2. The original sprocket assembly's spline shaft is replaced with a split spline sleeve, which is bolted to the sprocket body, improving safety and sealing. A first floating seal seat is located at one end of the bearing seat, and a second floating seal seat is located outside the spline sleeve. The first and second floating seal seats define an installation chamber. If the spline sleeve is damaged, it can be removed by simply removing the end cover and sleeve, eliminating the need to transport the entire sprocket assembly from the mine to the surface. Compared with existing technologies, this can significantly reduce the time required to repair the spline sleeve and improve work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 It is a schematic diagram of the structure of the present invention;

[0023] Figure 2 for Figure 1 Schematic diagram of the structure of the middle bearing seat;

[0024] Among them, 1. sprocket body; 2. bearing; 3. bearing seat; 4. first floating seal seat; 5. spline sleeve; 6. second floating seal seat; 7. installation chamber; 8. dynamic floating seal ring; 9. static floating seal ring; 10. end cover; 11. fastening bolts; 12. sleeve; 13. first sealing ring; 14. second sealing ring. DETAILED DESCRIPTION

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0027] The present invention provides a split sprocket assembly having a main shaft and a sprocket body 1 outside the main shaft, comprising:

[0028] The bearing seat 3 has a built-in bearing 2, and the sprocket body 1 is connected to the bearing 2;

[0029] The first floating seal seat 4 is provided at one end of the bearing seat 3;

[0030] A spline sleeve 5 is provided at one end of the sprocket body 1 and is used to cooperate with the spline of the driving mechanism;

[0031] The second floating seal seat 6 is sleeved on the outer side of the spline sleeve 5. The first floating seal seat 4 and the second floating seal seat 6 define an installation chamber 7 and a gap connecting the installation chamber 7 and the outside.

[0032] The dynamic floating seal ring 8 is arranged in the installation chamber 7, with its outer side connected to the second floating seal seat 6 and its inner side spaced apart from the spline sleeve 5;

[0033] The static floating seal ring 9 is arranged in the installation chamber 7, with its outer side connected to the first floating seal seat 4, and its inner side is spaced apart from the spline sleeve 5, and the end faces of the dynamic floating seal ring 8 and the static floating seal ring 9 are connected;

[0034] The end cover 10 is arranged on a side of the spline sleeve 5 away from the second floating seal seat 6 , and the end cover 10 is connected to the sprocket body 1 .

[0035] In this embodiment, the spline sleeve 5 is connected to the sprocket body 1 via fastening bolts 11 .

[0036] In this embodiment, a sheath 12 is provided on the outer side of the spline sleeve 5 .

[0037] In this embodiment, the second floating seal seat 6 is recessed inwardly on one side corresponding to the first floating seal seat 4 to form a first mounting groove, the dynamic floating seal ring 8 is arranged in the first mounting groove, and a first sealing ring 13 is arranged between the dynamic floating seal ring 8 and the inner side wall of the first mounting groove; the first floating seal seat 4 is recessed inwardly on one side corresponding to the second floating seal seat 6 to form a second mounting groove, the static floating seal ring 9 is arranged in the second mounting groove, and a second sealing ring 14 is arranged between the static floating seal ring 9 and the inner side wall of the second mounting groove.

[0038] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] The embodiments described above are merely descriptions of preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by persons skilled in the art should fall within the scope of protection defined by the claims of the present invention.

Claims

1. A split sprocket assembly comprising a main shaft and a sprocket body (1) outside the main shaft, characterized in that: include: A bearing seat (3) is provided with a bearing (2) therein, and the sprocket body (1) is connected to the bearing (2); A first floating seal seat (4) is provided at one end of the bearing seat (3); A spline sleeve (5) is provided at one end of the sprocket body (1) and is used to cooperate with the spline of the driving mechanism; A second floating seal seat (6) is sleeved on the outer side of the spline sleeve (5), and a mounting chamber (7) and a gap communicating the mounting chamber (7) with the outside are defined between the first floating seal seat (4) and the second floating seal seat (6); A dynamic floating seal ring (8) is arranged in the installation chamber (7), with its outer side surface connected to the second floating seal seat (6) and its inner side surface spaced apart from the spline sleeve (5); A static floating seal ring (9) is arranged in the installation chamber (7), the outer side of which is connected to the first floating seal seat (4), the inner side of which is spaced apart from the spline sleeve (5), and the end faces of the dynamic floating seal ring (8) and the static floating seal ring (9) are connected; An end cover (10) is arranged on a side of the spline sleeve (5) away from the second floating seal seat (6), and the end cover (10) is connected to the sprocket body (1).

2. A split sprocket assembly according to claim 1, characterized in that: The spline sleeve (5) is connected to the sprocket body (1) via a fastening bolt (11).

3. A split sprocket assembly according to claim 1, characterized in that: A protective sleeve (12) is provided on the outer side of the spline sleeve (5).

4. A split sprocket assembly according to claim 1, characterized in that: The second floating seal seat (6) is recessed inwardly on one side corresponding to the first floating seal seat (4) to form a first installation groove, the dynamic floating seal ring (8) is arranged in the first installation groove, and a first sealing ring (13) is arranged between the dynamic floating seal ring (8) and the inner side wall of the first installation groove; the first floating seal seat (4) is recessed inwardly on one side corresponding to the second floating seal seat (6) to form a second installation groove, the static floating seal ring (9) is arranged in the second installation groove, and a second sealing ring (14) is arranged between the static floating seal ring (9) and the inner side wall of the second installation groove.

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