Shaft part with double skewed slots in end face

Abstract

The utility model belongs to the technical field of transmission shafts, particularly relates to a shaft part with double skewed slots on an end face, and aims to solve the problem that the disassembly is very inconvenient due to the fact that a puller is needed for disassembly in the process of replacing a gear in the prior art, the following scheme is provided: the shaft part comprises a step shaft which is in a step shape; the small end of the transmission shaft is sleeved with a gear in transmission with other shafts; the positioning ring is arranged on the step shaft in a sleeving mode, one side of the positioning ring abuts against the gear, a connecting piece is arranged on the positioning ring and used for fixing the gear to the step shaft, and a positioning piece is arranged on the positioning ring and used for positioning the step shaft and the positioning ring; according to the utility model, the pin column inserted into the gear and the step shaft is arranged on the positioning ring, so that the gear and the step shaft can be indirectly connected, the outer wall of the step shaft can be effectively prevented from being damaged, and the gear shaft is convenient to mount, dismount and use.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission shafts, in particular to a shaft part with double oblique grooves on the end surface. Background Art

[0002] Shaft parts are one of the typical parts often encountered in hardware accessories. They are mainly used to support transmission components, transmit torque and bear loads. According to the different structural forms of shaft parts, they can generally be divided into three categories: smooth shafts, stepped shafts and special-shaped shafts; or into solid shafts, hollow shafts, etc.

[0003] After searching, the application with announcement number CN110206813B discloses a gear transmission shaft. By rotating the first clamp ring and the second clamp ring respectively, the gear can be clamped as the distance between the first clamp ring and the second clamp ring is shortened, thereby increasing the stability of the gear and the gear connection head, and then preventing shaking, solving the current problem of poor stability and the need for two different shafts to connect, which is too troublesome.

[0004] However, the process of connecting the transmission shaft and the gear also has the following disadvantages: when in use, the positioning is carried out by the cooperation between the inner protrusion of the gear and the groove on the transmission shaft, which is often called key-pin cooperation positioning. During use, the key pin will become fatigued and deformed. During the process of replacing the gear, it is necessary to use a puller for disassembly, which makes disassembly very inconvenient, and the outer wall of the transmission shaft will be damaged if the damage is serious. Utility Model Content

[0005] The utility model aims to solve the disadvantage in the prior art that a puller is needed to disassemble the gear during replacement, which makes disassembly very inconvenient, and proposes a shaft part with double bevel grooves on the end face.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A shaft part with double bevel grooves on the end surface, comprising a stepped shaft, the stepped shaft is in a step shape, and a small end sleeve of the stepped shaft is provided with a gear for transmission with other shafts;

[0008] A positioning ring, which is sleeved on the step shaft, one side of which contacts the gear, a connecting piece is provided on the positioning ring for fixing the gear on the step shaft, and a positioning piece is provided on the positioning ring for positioning the step shaft and the positioning ring;

[0009] The fixing piece is arranged at one end of the step shaft and is used for fixing the positioning ring on the step shaft.

[0010] In a possible design, the connecting member includes a plurality of pins detachably mounted on one side of the positioning ring, and one side of the gear and the step shaft are provided with sockets corresponding to the pins. The pins are inserted into the two sockets to restrict the gear on the step shaft.

[0011] In a possible design, a threaded area is provided at one end of the pin, a second threaded hole corresponding to the pin is opened on one side of the positioning ring, and the threaded area is threaded in the second threaded hole.

[0012] In a possible design, a limiting ring is fixedly sleeved on the outer wall of the pin, and a clearance groove corresponding to the insertion hole is opened on one side of the gear to make way for the limiting ring.

[0013] In a possible design, at least two flat openings are formed on the outer side of the limiting ring for engagement with a wrench.

[0014] In a possible design, the positioning member includes two positioning blocks fixed in a positioning ring, and one end of the step shaft is provided with an inclined groove corresponding to the positioning block for positioning the step shaft and the positioning ring.

[0015] In a possible design, the fixing part includes a bolt arranged at one end of the stepped shaft, a gasket is sleeved on the outer wall of the bolt, the bolt, the gasket and the two positioning blocks are in conflict with each other, a first threaded hole is opened at one end of the stepped shaft, and the bolt thread is arranged in the first threaded hole.

[0016] In the present application, during installation, the threaded area on the pin is first screwed into the second threaded hole on the positioning ring until the limit ring and the positioning ring collide with each other, and then the gear is sleeved on the plurality of pins, and then sleeved on the stepped shaft, and one end of the pin is inserted into the insertion hole, and the positioning block is clamped into the inclined groove;

[0017] Then put the gasket on the bolt, and screw the bolt into the first threaded hole at one end of the step shaft until the gasket contacts the positioning block, so that the gear can be fixed on the step shaft;

[0018] During the rotation process, the stepped shaft can drive the positioning ring to rotate through the inclined groove and the positioning block. During the rotation process, the positioning ring and the stepped shaft can drive the gear to rotate through multiple pins to realize transmission.

[0019] Beneficial effects:

[0020] In the utility model, the shaft part with double bevel grooves on the end surface can not only position and install the positioning ring through the coordinated use of the bevel grooves and the positioning block, but also transmit power to the positioning ring, which can effectively prevent the positioning ring from not moving during the rotation of the step shaft, and can quickly position the positioning ring;

[0021] In the utility model, the shaft part with double bevel grooves on the end face can connect the gear to the step shaft by arranging a pin at one end of the positioning ring and sleeve the gear on the plurality of pins. When the gear is damaged, the step shaft will not be damaged and the disassembly is convenient.

[0022] In the utility model, a pin column plugged with the gear and the step shaft is arranged on the positioning ring, so that the gear and the step shaft can be indirectly connected, which can effectively avoid damage to the outer wall of the step shaft, and is convenient for installation and disassembly and easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a three-dimensional structural schematic diagram of a shaft-type part with double bevel grooves on the end surface proposed by the utility model;

[0024] Figure 2 This is a schematic diagram of the exploded structure of a shaft-type part with double bevel grooves on the end face proposed by the utility model;

[0025] Figure 3 This is a schematic cross-sectional view of a shaft-type part with double bevel grooves on the end surface proposed by the utility model;

[0026] Figure 4 This is a schematic diagram of the pin structure of a shaft-type part with double oblique grooves on the end surface proposed by the utility model;

[0027] Figure 5 The utility model discloses a gear structure schematic diagram of a shaft-type part with double bevel grooves on the end face.

[0028] In the figure: 1. stepped shaft; 2. gear; 3. positioning ring; 4. bolt; 5. inclined groove; 6. pin; 7. socket; 8. positioning block; 9. gasket; 10. first threaded hole; 11. second threaded hole; 12. limiting ring; 13. flat end; 14. threaded area; 15. clearance groove. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0030] Example 1

[0031] Reference Figure 1-Figure 5, a shaft part with a double bevel groove on the end face, which is used in the field of transmission shafts, includes: a stepped shaft 1, a positioning ring 3 and a fixing part, the stepped shaft 1 is designed in a stepped shape, and its small end is sleeved with a gear 2 that is transmitted with other shafts, the positioning ring 3 is sleeved on the stepped shaft 1, and one side of the positioning ring is tightly in contact with the gear 2 to ensure the stable installation of the gear 2, and a connecting part is provided on the positioning ring 3, specifically a plurality of detachable pins 6, one end of these pins 6 is provided with a threaded area 14, which can be threadedly connected to the second threaded hole 11 on the positioning ring 3, and one side of the gear 2 and the stepped shaft 1 is provided with a socket 7 corresponding to the pin 6. When the pin 6 is inserted into the two sockets 7, the gear 2 is firmly restricted on the stepped shaft 1, so that the gear 2 is indirectly connected to the stepped shaft 1, which can effectively protect the outer wall of the stepped shaft 1.

[0032] The positioning between the positioning ring 3 and the stepped shaft 1 is achieved through a positioning piece, specifically, two positioning blocks 8 in the positioning ring 3 correspond to two inclined grooves 5 opened at one end of the stepped shaft 1. This design ensures the precise alignment between the positioning ring 3 and the stepped shaft 1.

[0033] The fixing part includes a bolt 4 arranged at one end of the stepped shaft 1, and a gasket 9 is sleeved on the outer wall of the bolt 4. The bolt 4, the gasket 9 and the two positioning blocks 8 are in conflict with each other. By tightening the bolt 4, the positioning ring 3 can be firmly fixed on the stepped shaft 1. A first threaded hole 10 is also opened at one end of the stepped shaft 1, and the bolt 4 is threadedly connected in the first threaded hole 10 to ensure the reliability of the fixing effect.

[0034] Example 2

[0035] refer to Figure 1-Figure 5 , improved on the basis of Example 1: In addition, a limiting ring 12 is provided on the outer wall fixing sleeve of the pin 6 for positioning in a clearance groove 15 opened on one side of the gear 2. In order to facilitate installation and disassembly, at least two flat openings 13 are opened on the outer side of the limiting ring 12, which can be engaged with tools such as wrenches for operation.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A shaft part with double bevel grooves on the end face, characterized in that: It comprises a stepped shaft (1), the stepped shaft (1) is in a stepped shape, and a gear (2) is sleeved on the small end thereof; A positioning ring (3), the positioning ring (3) is sleeved on the step shaft (1), one side of the positioning ring (3) is in contact with the gear (2), a connecting piece is provided on the positioning ring (3) for fixing the gear (2) on the step shaft (1), and a positioning piece is provided on the positioning ring (3) for positioning the step shaft (1) and the positioning ring (3); A fixing piece is arranged at one end of the stepped shaft (1) and is used to fix the positioning ring (3) on the stepped shaft (1).

2. A shaft part with double bevel grooves on the end surface according to claim 1, characterized in that: The connecting member comprises a plurality of pins (6) detachably arranged on one side of the positioning ring (3); one side of the gear (2) and the stepped shaft (1) are both provided with insertion holes (7) corresponding to the pins (6); the pins (6) are inserted into the two insertion holes (7) to restrict the gear (2) on the stepped shaft (1).

3. A shaft part with double bevel grooves on the end surface according to claim 2, characterized in that: A threaded area (14) is provided at one end of the pin (6), a second threaded hole (11) corresponding to the pin (6) is opened on one side of the positioning ring (3), and the threaded area (14) is threadedly arranged in the second threaded hole (11).

4. A shaft part with double bevel grooves on the end surface according to claim 3, characterized in that: The outer wall of the pin (6) is fixedly sleeved with a limiting ring (12), and a clearance groove (15) corresponding to the insertion hole (7) is provided on one side of the gear (2) for making way for the limiting ring (12).

5. A shaft part with double bevel grooves on the end surface according to claim 4, characterized in that: At least two flat openings (13) are provided on the outer side of the limiting ring (12) for engaging with a wrench.

6. A shaft part with double bevel grooves on the end surface according to any one of claims 1 to 5, characterized in that: The positioning member comprises two positioning blocks (8) fixedly arranged in the positioning ring (3); one end of the step shaft (1) is provided with an inclined groove (5) corresponding to the positioning blocks (8) for positioning the step shaft (1) and the positioning ring (3).

7. A shaft part with double bevel grooves on the end surface according to claim 6, characterized in that: The fixing member comprises a bolt (4) arranged at one end of the stepped shaft (1); a gasket (9) is sleeved on the outer wall of the bolt (4); the bolt (4), the gasket (9) and the two positioning blocks (8) are in contact with each other; a first threaded hole (10) is opened at one end of the stepped shaft (1), and the bolt (4) is threadedly arranged in the first threaded hole (10).

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