Main shaft assembly

Abstract

The utility model discloses a spindle assembly, which relates to the technical field of spindles and comprises a spindle, a spindle gear, a spindle synchronous pulley, a first bearing and a second bearing, the first bearing is arranged at one end of the spindle, and the second bearing is arranged in the middle of the spindle; the main shaft synchronous pulley is arranged on the main shaft and located between the first bearing and the second bearing, the main shaft gear is arranged on the main shaft and located on the outer side of the second bearing, a first main shaft spacer bush is arranged between the second bearing and the main shaft gear, a round nut is arranged at the tail end of the main shaft, and a second main shaft spacer bush is arranged between the round nut and the main shaft gear. According to the utility model, by reasonably designing the layout of the bearing, the synchronous pulley and the gear, the structure of the main shaft assembly is simplified, and the complexity of processing and assembling is reduced. A deep groove ball bearing is adopted as a supporting part, flat key connection and spacer bush adjustment are combined, and accurate transmission and stable operation among the main shaft, the synchronous belt wheel and the gear are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of spindles, and specifically refers to a spindle assembly. Background Art

[0002] In mechanical equipment, as a core transmission component, the structural stability and transmission accuracy of the spindle assembly are directly related to the operating efficiency and performance of the entire equipment. Traditional spindle assemblies often have problems such as complex structures, inconvenient installation, and low transmission accuracy in design. Therefore, how to design a spindle assembly with a simple structure, convenient installation, stable transmission, and high precision has become a technical problem that needs to be solved urgently by those skilled in the art. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a spindle assembly to achieve simplified installation, improved transmission accuracy and stability of the spindle assembly.

[0004] To solve the above technical problem, the technical solution provided by the utility model is: a spindle assembly, including a spindle, a spindle gear, a spindle synchronous pulley, a first bearing, and a second bearing. The first bearing is arranged at one end of the spindle, and the second bearing is arranged in the middle of the spindle; the spindle synchronous pulley is arranged on the spindle and between the first bearing and the second bearing, the spindle gear is arranged on the spindle and outside the second bearing, a first spindle spacer is arranged between the second bearing and the spindle gear, a round nut is arranged at the end of the spindle, and a second spindle spacer is arranged between the round nut and the spindle gear.

[0005] Further, the first bearing includes a first deep groove ball bearing, a first spindle bearing seat, and a spindle front bearing gland. The first deep groove ball bearing is sleeved on the end of the spindle, the first spindle bearing seat is sleeved outside the first deep groove ball bearing, and the spindle front bearing gland is arranged on the inner side of the first deep groove ball bearing and cooperates with the first spindle bearing seat to limit the first deep groove ball bearing.

[0006] Further, the second bearing includes a second deep groove ball bearing and a second spindle bearing seat. The second deep groove ball bearing is sleeved on the spindle, the second spindle bearing seat is sleeved outside the second deep groove ball bearing, and the first spindle spacer cooperates with the second spindle bearing seat to limit the second deep groove ball bearing.

[0007] Further, a first flat key is arranged between the spindle synchronous pulley and the spindle.

[0008] Further, a second flat key is arranged between the spindle gear and the spindle.

[0009] The advantages of the utility model compared with the prior art are as follows:

[0010] 1. By reasonably designing the layout of the bearing, synchronous pulley and gear, the present invention simplifies the structure of the spindle assembly and reduces the complexity of processing and assembly.

[0011] 2. Using deep groove ball bearings as the supporting components, combined with flat key connections and spacer adjustments, ensures the precise transmission and stable operation among the spindle, synchronous pulley and gear.

[0012] 3. Standardized designs are adopted among various components, facilitating quick installation and debugging and improving work efficiency.

[0013] 4. The spindle assembly of the present invention can be widely applied to various mechanical equipment requiring high-precision transmission and support, and has broad market prospects and application value. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 is a schematic structural view of a spindle assembly of the present utility model.

[0015] As shown in the figure: 1. Spindle, 2. Spindle gear, 3. Spindle synchronous pulley, 4. First bearing, 5. Second bearing, 6. First spindle spacer, 7. Round nut, 8. Second spindle spacer, 9. First deep groove ball bearing, 10. First spindle bearing seat, 11. Spindle front bearing gland, 12. Second deep groove ball bearing, 13. Second spindle bearing seat, 14. First flat key, 15. Second flat key. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] In the description of the present utility model, it should be understood that the orientation or positional relationships indicated by the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, 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 should not be construed as a limitation to the present utility model.

[0017] In the description of the present utility model, the "first feature" and "second feature" may include one or more of such features. In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0018] In the present utility model, unless otherwise clearly defined and limited, terms such as "installation", "connection", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0019] The following further elaborates on a spindle assembly of the present utility model with reference to the accompanying drawings.

[0020] Combined with the attached Figure 1 , the specific implementation process of a spindle assembly of the present utility model is as follows:

[0021] A spindle assembly includes a spindle 1, a spindle gear 2, a spindle synchronous pulley 3, a first bearing 4 and a second bearing 5. The specific structure is as follows:

[0022] The spindle 1 serves as the support and transmission core of the entire assembly. One end of the spindle 1 is provided with a first bearing 4, and the middle part is provided with a second bearing 5.

[0023] The first bearing 4 includes a first deep groove ball bearing 9, a first spindle bearing seat 10 and a spindle front bearing gland 11. The first deep groove ball bearing 9 is sleeved on the end of the spindle 1, the first spindle bearing seat 10 is sleeved outside the first deep groove ball bearing 9, and the spindle front bearing gland 11 is arranged on the inner side of the first deep groove ball bearing 9 and cooperates with the first spindle bearing seat 10 to limit the first deep groove ball bearing 9 and ensure its stability during operation.

[0024] The second bearing 5 includes a second deep groove ball bearing 12 and a second spindle bearing seat 13. The second deep groove ball bearing 12 is sleeved on the spindle 1 and is located between the first bearing 4 and the spindle synchronous pulley 3. The second spindle bearing seat 13 is sleeved outside the second deep groove ball bearing 12 and cooperates with the first spindle spacer 6 to limit the second deep groove ball bearing 12 and further ensure the support and transmission stability of the spindle 1.

[0025] The spindle synchronous pulley 3 is arranged on the spindle 1 and is located between the first bearing 4 and the second bearing 5. To ensure the synchronous transmission between the spindle synchronous pulley 3 and the spindle 1, a first flat key 14 is provided between them.

[0026] The spindle gear 2 is arranged on the spindle 1 and is located outside the second bearing 5 for realizing the gear transmission of the spindle 1. To ensure the firm connection and precise transmission between the spindle gear 2 and the spindle 1, a second flat key 15 is provided between them.

[0027] A first main shaft spacer sleeve 6 is provided between the second bearing 5 and the main shaft gear 2, which is used to adjust the clearance between the second bearing 5 and the main shaft gear 2 and improve the stability of transmission. A round nut 7 is provided at the end of the main shaft 1, and a second main shaft spacer sleeve 8 is provided between the round nut 7 and the main shaft gear 2, which is used to fix the main shaft gear 2 and adjust its position to ensure the accuracy of transmission.

[0028] The above description is made on the present utility model and its implementation manners. Such description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present utility model, and the actual structure is not limited thereto. Generally speaking, if those of ordinary skill in the art are inspired by it and design similar structural manners and embodiments without creative efforts without departing from the creative concept of the present utility model, they shall fall within the protection scope of the present utility model.

Claims

1. A spindle assembly, characterized in that: The invention comprises a main shaft (1), a main shaft gear (2), a main shaft synchronous pulley (3), a first bearing (4) and a second bearing (5), wherein the first bearing (4) is arranged at one end of the main shaft (1), and the second bearing (5) is arranged at the middle of the main shaft (1); the main shaft synchronous pulley (3) is arranged on the main shaft (1) and is located between the first bearing (4) and the second bearing (5); the main shaft gear (2) is arranged on the main shaft (1) and is located outside the second bearing (5); a first main shaft spacer (6) is arranged between the second bearing (5) and the main shaft gear (2); a round nut (7) is arranged at the end of the main shaft (1), and a second main shaft spacer (8) is arranged between the round nut (7) and the main shaft gear (2).

2. A spindle assembly according to claim 1, characterized in that: The first bearing (4) comprises a first deep groove ball bearing (9), a first main shaft bearing seat (10) and a main shaft front bearing cover (11); the first deep groove ball bearing (9) is sleeved on the end of the main shaft (1); the first main shaft bearing seat (10) is sleeved on the outside of the first deep groove ball bearing (9); the main shaft front bearing cover (11) is arranged on the inner side of the first deep groove ball bearing (9) and cooperates with the first main shaft bearing seat (10) to limit the first deep groove ball bearing (9).

3. A spindle assembly according to claim 2, characterized in that: The second bearing (5) comprises a second deep groove ball bearing (12) and a second spindle bearing seat (13); the second deep groove ball bearing (12) is sleeved on the spindle (1); the second spindle bearing seat (13) is sleeved outside the second deep groove ball bearing (12); the first spindle spacer (6) cooperates with the second spindle bearing seat (13) to limit the second deep groove ball bearing (12).

4. A spindle assembly according to claim 3, characterized in that: A first flat key (14) is provided between the main shaft synchronous pulley (3) and the main shaft (1).

5. A spindle assembly according to claim 4, characterized in that: A second flat key (15) is provided between the main shaft gear (2) and the main shaft (1).

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