Stepped rotating shaft for sewing machine motor

Abstract

The utility model discloses a step rotating shaft for a sewing machine motor, which belongs to the field of step rotating shafts and comprises a step rotating shaft body, the step rotating shaft body is composed of a fixed step rotating shaft and a detachable step rotating shaft, and the detachable step rotating shaft is mounted at one end of the fixed step rotating shaft. Two connecting blocks are symmetrically and fixedly installed at one end of the detachable step rotating shaft, the connecting blocks can be inserted into the fixed step rotating shaft, a fixing structure is movably installed in the fixed step rotating shaft, the fixing structure is composed of a threaded rod, disassembly and assembly rotating blocks and a fixing clamping plate, and the two disassembly and assembly rotating blocks are fixedly installed at the two ends of the threaded rod respectively; by arranging the step rotating shaft body composed of the fixed step rotating shaft and the detachable step rotating shaft, when the step rotating shaft is used, the detachable step rotating shaft can be replaced according to use requirements, and therefore the practicability of the step rotating shaft body can be finally improved; and by arranging a fixing structure and a connecting block, the fixed step rotating shaft and the detachable step rotating shaft can be conveniently disassembled and assembled.

Description

Technical Field

[0001] The utility model relates to the field of step rotating shafts, in particular to a step rotating shaft for a sewing machine motor. Background Art

[0002] The step shaft is a specially designed shaft part, and its main feature is that there are steps of different diameters on the shaft. These steps enable the shaft to be matched and installed with parts of different specifications or types to achieve the transmission of power or motion. Step shafts are usually used in equipment that requires rotational motion, such as motors, transmission devices, and robotic arms. The design of the step shaft used in sewing machine motors is mainly to improve the efficiency and stability of the motor. The design of the step shaft can optimize the force transmission path inside the motor, reduce energy loss, and thus improve the efficiency of the motor. At the same time, the structure of the step shaft can also improve the stability and durability of the motor, so that it can maintain good performance even in a long-term, high-intensity working environment. The traditional step shaft is often an integrated structure. For example, in the patent application with application number CN202320848487.3, the motor shaft with a stepped structure proposed, so that the diameter of the step on the step shaft cannot be changed according to the use requirements, which will reduce the practicality of the step shaft. Therefore, a step shaft for sewing machine motors is needed to solve the above problems. Utility Model Content

[0003] The main purpose of the utility model is to provide a stepped rotating shaft for a sewing machine motor, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A step shaft for a sewing machine motor comprises a step shaft body, wherein the step shaft body consists of a fixed step shaft and a detachable step shaft, wherein the detachable step shaft is mounted at one end of the fixed step shaft, wherein one end of the detachable step shaft is symmetrically and fixedly mounted with two connecting blocks, wherein the connecting blocks can be plugged into the fixed step shaft, wherein a fixing structure is movably mounted in the fixed step shaft, wherein the fixing structure consists of a threaded rod, a disassembly and assembly rotating block and a fixed clamping plate, wherein there are two disassembly and assembly rotating blocks which are respectively fixedly mounted at both ends of the threaded rod, and wherein there are two fixed clamping plates which are both mounted on the threaded rod.

[0006] Preferably, a hexagonal slot is provided at one end of the fixed step shaft, two receiving slots are symmetrically provided on the outer wall of the fixed step shaft, and two through holes are symmetrically provided in the fixed step shaft, and the through holes connect the hexagonal slot with the receiving slot.

[0007] Preferably, a fixing slot and a connecting slot are provided at one end of the connecting block, and the fixing slot and the connecting slot are communicated with each other, and the connecting block can be plugged into a hexagonal slot provided at one end of the fixed step shaft.

[0008] Preferably, the threaded rod on the fixed structure is rotatably mounted in a hexagonal slot and a through hole provided on the fixed step shaft, and the disassembly and assembly rotating block is rotatably mounted in a receiving groove provided on the outer wall of the fixed step shaft.

[0009] Preferably, the connecting block can be sleeved on the threaded rod through a connecting groove.

[0010] Preferably, a threaded hole is provided on the fixed clamp on the fixed structure, and the fixed clamp is installed on the threaded rod through the threaded hole provided thereon. The fixed clamp is located in a hexagonal slot provided on the fixed step rotating shaft, and the fixed clamp can also be embedded in a fixed slot provided on the connecting block.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] By setting up a step shaft body consisting of a fixed step shaft and a detachable step shaft, the detachable step shaft can be replaced according to usage requirements during use, thereby ultimately improving the practicality of the step shaft body; by setting up a fixed structure and a connecting block, the disassembly and assembly of the fixed step shaft and the detachable step shaft can be facilitated. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a disassembled diagram of the whole of the utility model;

[0014] Figure 2 It is a structural schematic diagram of the fixed step rotating shaft of the utility model;

[0015] Figure 3 It is a schematic diagram of the positional relationship between the connecting block and the fixing structure of the utility model;

[0016] Figure 4 It is a structural schematic diagram of the fixing structure of the utility model;

[0017] Figure 5 It is a structural schematic diagram of the sewing machine motor of the utility model.

[0018] In the figure: 1. Fixed step shaft; 2. Removable step shaft; 3. Connecting block; 4. Fixed structure; 5. Hexagonal slot; 6. Storage slot; 7. Through hole; 8. Step shaft body; 9. Fixed slot; 10. Connecting slot; 11. Threaded rod; 12. Disassembly and assembly rotating block; 13. Fixed card plate; 14. Threaded hole. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, a step shaft for a sewing machine motor includes a step shaft body 8, which is composed of a fixed step shaft 1 and a detachable step shaft 2. The detachable step shaft 2 is installed at one end of the fixed step shaft 1. One end of the fixed step shaft 1 is provided with a hexagonal slot 5. Two receiving slots 6 are symmetrically provided on the outer wall of the fixed step shaft 1. Two through holes 7 are symmetrically provided in the fixed step shaft 1. The through holes 7 connect the hexagonal slot 5 with the receiving slot 6. One end of the detachable step shaft 2 is symmetrically fixed. There are two connection blocks 3 fixedly installed, and the connection block 3 can be plugged into the fixed step shaft 1. A fixed structure 4 is movably installed in the fixed step shaft 1. The fixed structure 4 is composed of a threaded rod 11, a disassembly and assembly rotation block 12 and a fixed card plate 13. There are two disassembly and assembly rotation blocks 12 and they are fixedly installed at both ends of the threaded rod 11 respectively. There are two fixed card plates 13 and they are both installed on the threaded rod 11. One end of the connection block 3 is provided with a fixed card slot 9 and a connecting slot 10, and the fixed card slot 9 and the connecting slot 10 are connected to each other. The connection block 3 can be Inserted in the hexagonal slot 5 opened at one end of the fixed step shaft 1, the threaded rod 11 on the fixed structure 4 is rotatably installed in the hexagonal slot 5 and the through hole 7 opened on the fixed step shaft 1, the disassembly and assembly rotating block 12 is rotatably installed in the storage groove 6 opened on the outer wall of the fixed step shaft 1, the connecting block 3 can be sleeved on the threaded rod 11 through the connecting groove 10, and the fixed clamping plate 13 on the fixed structure 4 is provided with a threaded hole 14, and the fixed clamping plate 13 is installed on the threaded rod 11 through the threaded hole 14 opened thereon. The fixed clamping plate 13 is located in the hexagonal slot 5 opened on the fixed step shaft 1, and the fixed clamping plate 13 can also be embedded in the fixed clamping slot 9 opened on the connecting block 3. By setting a step shaft body 8 composed of a fixed step shaft 1 and a detachable step shaft 2, when in use, the detachable step shaft 2 can be replaced according to usage requirements, thereby ultimately improving the practicality of the step shaft body 8. By setting a fixed structure 4 and a connecting block 3, the disassembly and assembly of the fixed step shaft 1 and the detachable step shaft 2 can be facilitated.

[0021] It should be noted that the utility model is a step shaft for a sewing machine motor. When in use, the detachable step shaft 2 can be disassembled and replaced according to the use requirements. The method is that first, a tool is used to rotate the threaded rod 11 through the disassembly and assembly rotating block 12, so that the two fixed clamps 13 are close to each other. When the fixed clamp 13 is removed from the fixed clamping groove 9 opened on the connecting block 3, the fixation of the connecting block 3 is released, and then the connecting block 3 can be pulled out from the hexagonal slot 5. At this time, the disassembly of the detachable step shaft 2 is completed, and then the detachable step shaft 2 to be replaced can be installed on the fixed step shaft 1. The method is that only the connecting block 3 at one end of the detachable step shaft 2 is inserted into the hexagonal slot 5, and then the threaded rod 11 on the fixing structure 4 is rotated, so that the fixed clamp 13 is finally embedded in the fixed clamping groove 9. At this time, the replacement of the detachable step shaft 2 is completed.

[0022] The above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the aforementioned embodiments, it is still possible for a person skilled in the art to modify the technical solutions described in the aforementioned embodiments or to replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model. The protection scope of the utility model is defined by the attached claims and their equivalents.

Claims

1. A step shaft for a sewing machine motor, comprising a step shaft body (8), characterized in that: The step shaft body (8) is composed of a fixed step shaft (1) and a detachable step shaft (2); the detachable step shaft (2) is mounted on one end of the fixed step shaft (1); two connecting blocks (3) are symmetrically fixedly mounted on one end of the detachable step shaft (2); the connecting blocks (3) can be plugged into the fixed step shaft (1); a fixed structure (4) is movably mounted in the fixed step shaft (1); the fixed structure (4) is composed of a threaded rod (11), a disassembly and assembly rotating block (12) and a fixed clamping plate (13); there are two disassembly and assembly rotating blocks (12) which are respectively fixedly mounted on the two ends of the threaded rod (11); there are two fixed clamping plates (13) which are both mounted on the threaded rod (11).

2. The step shaft for a sewing machine motor according to claim 1, characterized in that: A hexagonal slot (5) is provided at one end of the fixed step rotating shaft (1), two receiving slots (6) are symmetrically provided on the outer wall of the fixed step rotating shaft (1), and two through holes (7) are symmetrically provided inside the fixed step rotating shaft (1), wherein the through holes (7) connect the hexagonal slot (5) with the receiving slot (6).

3. The step shaft for a sewing machine motor according to claim 2, characterized in that: One end of the connection block (3) is provided with a fixed card slot (9) and a connection slot (10), and the fixed card slot (9) and the connection slot (10) are communicated with each other. The connection block (3) can be plugged into a hexagonal slot (5) provided at one end of the fixed step shaft (1).

4. The step shaft for a sewing machine motor according to claim 3, characterized in that: The threaded rod (11) on the fixed structure (4) is rotatably mounted in a hexagonal slot (5) and a through hole (7) provided on the fixed step rotating shaft (1), and the disassembly and assembly rotating block (12) is rotatably mounted in a receiving groove (6) provided on the outer wall of the fixed step rotating shaft (1).

5. The step shaft for a sewing machine motor according to claim 4, characterized in that: The connecting block (3) can be mounted on the threaded rod (11) through the connecting groove (10).

6. The step shaft for a sewing machine motor according to claim 5, characterized in that: A threaded hole (14) is provided on the fixing plate (13) on the fixing structure (4); the fixing plate (13) is installed on the threaded rod (11) through the threaded hole (14) provided thereon; the fixing plate (13) is located in a hexagonal slot (5) provided on the fixing step shaft (1); and the fixing plate (13) can also be embedded in a fixing slot (9) provided on the connecting block (3).

Images