A combined gear shaft

Abstract

The utility model relates to gear field discloses a combined gear shaft, including the pivot, the gear of setting on the pivot, the bearing of being located gear left and right sides, and the bearing is connected with the pivot and the gear through the installation component, and the installation component includes the shaft sleeve A of being located gear left and right sides, the compression ring A of fixedly setting in the shaft sleeve A one end close to the gear, the compression ring B of fixedly setting in the shaft sleeve A one end away from the gear, the shaft sleeve B of fixedly setting in the compression ring B one end away from the gear, and the shaft sleeve A and the shaft sleeve B set on the pivot and are fixedly connected with the pivot, and the compression ring A is connected with the gear and touches, and the bearing inner ring sets on the shaft sleeve B and is fixedly connected with the shaft sleeve B and the compression ring B. The utility model has the beneficial effect of high adaptability, solves the problem that the application range of the special bearing manufactured is also relatively narrow, and the length of the guide block is fixed, and the problem that the long pivot cannot be adapted appears.

Description

Technical Field

[0001] This utility model relates to the field of gear technology, specifically to a combined gear shaft. Background Technology

[0002] A gear is a wheel-shaped mechanical part with continuously meshing teeth along its edges. It is hailed as the "symbol of industry" and is an indispensable basic transmission element in almost all mechanical devices. Through the meshing of the teeth of two or more gears, power and motion can be transmitted from one shaft to another.

[0003] In the prior art, a double-bearing gear with authorization announcement number CN 223294186 U can pre-position the bearing and gear by setting a positioning component, so that the installation positioning of the bearing and gear is more accurate, which makes the installation of the bearing and gear easier and improves the installation efficiency of the bearing and gear.

[0004] While the above technical solutions improve the installation efficiency of bearings and gears, existing bearings on the market are typically standard parts, and standard bearings do not have guide blocks on their inner rings. To achieve the above technical solutions, it is necessary to manufacture special bearings with guide blocks, or to perform secondary processing on standard bearings. However, the application range of specially manufactured bearings is relatively narrow, as their guide block length is fixed and cannot be adapted to longer shafts. Utility Model Content

[0005] The purpose of this invention is to provide a combined gear shaft to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a combined gear shaft, including a rotating shaft, a gear sleeved on the rotating shaft, and bearings located on the left and right sides of the gear. The bearings are connected to the rotating shaft and the gear through an installation assembly. The installation assembly includes bushings A located on the left and right sides of the gear, a pressure ring A fixedly disposed at the end of bushing A near the gear, a pressure ring B fixedly disposed at the end of bushing A away from the gear, and bushing B fixedly disposed at the end of pressure ring B away from the gear. Bushings A and B are sleeved on the rotating shaft and fixedly connected to the rotating shaft. The pressure ring A is in contact with the gear. The inner ring of the bearing is sleeved on bushing B and fixedly connected to bushing B and pressure ring B.

[0007] Preferably, a spline sleeve is fixedly provided on the rotating shaft, and a spline groove matching the spline sleeve is opened through the gear on both sides. When the gear is sleeved on the rotating shaft, the spline sleeve is inserted into the spline groove and abuts against the gear.

[0008] Preferably, the pressure ring A is fixedly provided with a number of positioning pins near one end of the gear, and the gear is provided with a number of positioning holes that match the positioning pins through the left and right sides, and the positioning pins are inserted into the positioning holes and contact the gear.

[0009] Preferably, the mounting assembly further includes fixing rings located on the left and right sides of the rotating shaft, and after the bearing inner ring is fitted onto the bushing B, the fixing rings are fixedly connected to the rotating shaft, bushing B and bearing inner ring.

[0010] Preferably, a number of fixing blocks are fixedly provided on the inner side of the bushing B, and a number of slots penetrating the outer side walls are provided on the left and right side walls of the rotating shaft. When the bushing B is sleeved on the rotating shaft, the fixing blocks are inserted into the slots and contact the rotating shaft.

[0011] Preferably, the mounting assembly further includes several screws, and the fixing ring and fixing block are each provided with several through holes extending through the left and right sides. The slot sidewall is provided with several screw holes aligned with the through holes. After the screws are inserted into the through holes, they are screwed into the screw holes to fix them to the rotating shaft, fixing ring and fixing block. The bearing inner ring is fixedly disposed between the pressure ring B and the fixing ring.

[0012] Preferably, a connecting shaft is fixedly provided on the right side of the rotating shaft.

[0013] The beneficial effects of this utility model are as follows: During assembly, the gear is first fitted onto the rotating shaft, and then the spline sleeve is inserted into the spline groove to abut against the gear, forming a spline connection between the spline sleeve and the gear, which has the characteristics of good guidance, high load-bearing capacity, and strong stability; Bushings A and B are fitted onto the rotating shaft, and the pressure ring A abuts against the gear, allowing the positioning pin to be inserted into the positioning hole and contacting the gear, and the fixing block to be inserted into the slot and contacting the rotating shaft, thus positioning and installing bushings A and B; The bearing inner ring is fitted onto bushing B, and the fixing ring is placed on the left and right sides of the rotating shaft, aligning the through hole with the screw hole, and then the screw is inserted into the through hole and screwed into the screw hole to fix it to the rotating shaft, fixing ring, and fixing block, thus clamping and fixing the bearing inner ring to the pressure ring B and... Between the retaining rings, the bearing is connected to the shaft and gear, completing the assembly of this utility model. When the required shaft length is long, the longer bushing A can be replaced to complete the adaptation. In summary, this utility model improves adaptability while ensuring accurate positioning of the bearing and gear and facilitating their installation. It eliminates the need for special bearings; simply replacing the bushing allows it to be adapted to shafts of different lengths or diameters, achieving a high degree of adaptability. This solves the problem that standard bearings do not have guide blocks on their inner rings, requiring the manufacture of special bearings with guide blocks or secondary processing based on standard bearings. The application range of such special bearings is relatively narrow, and their guide block length is fixed, making them unsuitable for longer shafts. Attached Figure Description

[0014] Appendix Figure 1 This is a schematic diagram of the structure of this utility model; Appendix Figure 2 This is a front view of the present invention; Appendix Figure 3 For the appendix Figure 2 Sectional view at point AA; Appendix Figure 4 This is an exploded view of the present invention.

[0015] In the diagram: 1. Shaft; 2. Gear; 3. Bearing; 4. Bushing A; 5. Pressure Ring A; 6. Pressure Ring B; 7. Bushing B; 8. Spline sleeve; 9. Spline groove; 10. Locating pin; 11. Locating hole; 12. Retaining ring; 13. Retaining block; 14. Slot; 15. Screw; 16. Through hole; 17. Screw hole; 18. Connecting shaft. Detailed Implementation

[0016] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0017] like Figure 1-4As shown, this utility model discloses a combined gear shaft, including a rotating shaft 1, a gear 2 sleeved on the rotating shaft 1, and bearings 3 located on the left and right sides of the gear 2. The bearings 3 are connected to the rotating shaft 1 and the gear 2 through an installation assembly. The installation assembly includes bushings A4 located on the left and right sides of the gear 2, a pressure ring A5 fixedly disposed on the end of the bushing A4 near the gear 2, a pressure ring B6 fixedly disposed on the end of the bushing A4 away from the gear 2, and a bushing B7 fixedly disposed on the end of the pressure ring B6 away from the gear 2. The bushings A4 and B7 are sleeved on the rotating shaft 1 and fixedly connected to the rotating shaft 1. The pressure ring A5 is in contact with the gear 2. The inner ring of the bearing 3 is sleeved on the bushing B7 and fixedly connected to the bushing B7 and the pressure ring B6. During assembly, the gear 2 is first fitted onto the rotating shaft 1. Then, the spline sleeve 8 is inserted into the spline groove 9 and abuts against the gear 2, forming a spline connection between the spline sleeve 8 and the gear 2, which has the characteristics of good guidance, high load-bearing capacity, and strong stability. The bushings A4 and B7 are fitted onto the rotating shaft 1, and the pressure ring A5 abuts against the gear 2. The positioning pin 10 is inserted into the positioning hole 11 and contacts the gear 2, and the fixing block 13 is inserted into the slot 14 and contacts the rotating shaft 1, thus positioning and installing the bushings A4 and B7. The inner ring of the bearing 3 is fitted onto the bushing B7, and the fixing ring 12 is placed on the left and right sides of the rotating shaft 1. The through hole 16 is aligned with the screw hole 17, and then the screw 15 is inserted into the through hole 16 and screwed into the screw hole 17 to fix the rotating shaft 1, the fixing ring 12, and the fixing block 13, thus clamping the inner ring of the bearing 3. Fixed between the pressure ring B6 and the fixing ring 12, the bearing 3 is connected to the rotating shaft 1 and the gear 2, completing the assembly of this utility model. When the required length of the rotating shaft 1 is long, the longer bushing A4 can be replaced to complete the adaptation. In summary, this utility model improves adaptability while ensuring accurate installation and positioning of the bearing 3 and gear 2 and facilitating their installation. It eliminates the need for a special bearing 3; simply replacing the bushing allows it to be adapted to rotating shafts 1 of different lengths or diameters, thus achieving a high degree of adaptability. This solves the problem that the standard bearing 3 does not have a guide block on its inner ring, requiring the manufacture of a special bearing 3 with a guide block, or secondary processing based on the standard bearing 3. The application range of the manufactured special bearing 3 is also relatively narrow, and its guide block length is fixed, making it unable to adapt to longer rotating shafts 1.

[0018] Preferably, a spline sleeve 8 is fixedly mounted on the rotating shaft 1, and the gear 2 has spline grooves 9 that match the spline sleeve 8 extending through its left and right sides. When the gear 2 is mounted on the rotating shaft 1, the spline sleeve 8 is inserted into the spline grooves 9 and abuts against the gear 2. Because the gear 2 has spline grooves 9 that match the spline sleeve 8 extending through its left and right sides, inserting the spline sleeve 8 into the spline grooves 9 and abutting against the gear 2 forms a spline connection between the spline sleeve 8 and the gear 2, which has the characteristics of good guidance, high load-bearing capacity, and strong stability.

[0019] Preferably, the pressure ring A5 has several positioning pins 10 fixedly disposed near one end of the gear 2, and the gear 2 has several positioning holes 11 that match the positioning pins 10 extending through its left and right sides. The positioning pins 10 are inserted into the positioning holes 11 and contact the gear 2. Since the gear 2 has several positioning holes 11 that match the positioning pins 10 extending through its left and right sides, inserting the positioning pins 10 into the positioning holes 11 and contacting the gear 2 facilitates the positioning and installation of the bushing A4.

[0020] Preferably, the mounting assembly further includes retaining rings 12 located on the left and right sides of the rotating shaft 1. After the inner ring of the bearing 3 is fitted onto the bushing B7, the retaining rings 12 are fixedly connected to the rotating shaft 1, the bushing B7, and the inner ring of the bearing 3. Since the inner ring of the bearing 3 is fitted onto the bushing B7 and the retaining rings 12 are fixedly connected to the rotating shaft 1, the bushing B7, and the inner ring of the bearing 3, it serves to fix the inner ring of the bearing 3.

[0021] Preferably, a plurality of fixing blocks 13 are fixedly disposed on the inner side of the bushing B7, and a plurality of slots 14 penetrating the outer side walls are provided on the left and right side walls of the rotating shaft 1. When the bushing B7 is fitted onto the rotating shaft 1, the fixing blocks 13 are inserted into the slots 14 and contact the rotating shaft 1. Since a plurality of slots 14 penetrating the outer side walls are provided on the left and right side walls of the rotating shaft 1, inserting the fixing blocks 13 into the slots 14 and contacting the rotating shaft 1 facilitates the positioning and installation of the bushing B7.

[0022] Preferably, the mounting assembly further includes several screws 15. Both the retaining ring 12 and the retaining block 13 have several through holes 16 extending through them. The side wall of the slot 14 has several screw holes 17 aligned with the through holes 16. The screws 15 are inserted into the through holes 16 and then screwed into the screw holes 17 to fix them to the rotating shaft 1, retaining ring 12, and retaining block 13. The inner ring of the bearing 3 is fixedly disposed between the pressure ring B6 and the retaining ring 12. Because the side wall of the slot 14 has several screw holes 17 aligned with the through holes 16, inserting the screws 15 into the through holes 16 and then screwing them into the screw holes 17 to fix them to the rotating shaft 1, retaining ring 12, and retaining block 13, the inner ring of the bearing 3 is fixedly disposed between the pressure ring B6 and the retaining ring 12, facilitating the assembly and disassembly of the bearing 3.

[0023] Preferably, a connecting shaft 18 is fixedly provided on the right side of the rotating shaft 1. The connecting shaft 18 fixedly provided on the right side of the rotating shaft 1 facilitates the connection of external components.

[0024] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A combined gear shaft, comprising a shaft (1), a gear (2) sleeved on the shaft (1), and bearings (3) located on the left and right sides of the gear (2), characterized in that: The bearing (3) is connected to the shaft (1) and the gear (2) through the mounting assembly. The mounting assembly includes a bushing A (4) located on the left and right sides of the gear (2), a pressure ring A (5) fixedly installed on the bushing A (4) near the gear (2), a pressure ring B (6) fixedly installed on the bushing A (4) away from the gear (2), and a bushing B (7) fixedly installed on the pressure ring B (6) away from the gear (2). The bushing A (4) and bushing B (7) are fitted on the shaft (1) and fixedly connected to the shaft (1). The pressure ring A (5) is in contact with the gear (2). The inner ring of the bearing (3) is fitted on the bushing B (7) and fixedly connected to the bushing B (7) and the pressure ring B (6).

2. The combined gear shaft according to claim 1, characterized in that: A spline sleeve (8) is fixedly installed on the rotating shaft (1). The gear (2) has a spline groove (9) that matches the spline sleeve (8) through it on the left and right. When the gear (2) is sleeved on the rotating shaft (1), the spline sleeve (8) is inserted into the spline groove (9) and abuts against the gear (2).

3. A combined gear shaft according to claim 1, characterized in that: The pressure ring A (5) is fixedly provided with several positioning pins (10) at one end near the gear (2). The gear (2) is provided with several positioning holes (11) that match the positioning pins (10) through the left and right sides. The positioning pins (10) are inserted into the positioning holes (11) and contact the gear (2).

4. A combined gear shaft according to claim 1, characterized in that: The mounting assembly also includes fixing rings (12) located on the left and right sides of the rotating shaft (1). After the inner ring of the bearing (3) is fitted onto the bushing B (7), the fixing rings (12) are fixedly connected to the rotating shaft (1), the bushing B (7) and the inner ring of the bearing (3).

5. A combined gear shaft according to claim 4, characterized in that: Several fixing blocks (13) are fixedly provided on the inner side of the bushing B (7). Several slots (14) that penetrate the outer side wall are provided on the left and right side walls of the rotating shaft (1). When the bushing B (7) is sleeved on the rotating shaft (1), the fixing blocks (13) are inserted into the slots (14) and contact the rotating shaft (1).

6. A combined gear shaft according to claim 5, characterized in that: The mounting assembly also includes several screws (15). The fixing ring (12) and the fixing block (13) are both provided with several through holes (16) extending through the left and right sides. The slot (14) is provided with several screw holes (17) aligned with the through holes (16). After the screws (15) are inserted into the through holes (16), they are screwed into the screw holes (17) and fixedly connected to the rotating shaft (1), the fixing ring (12) and the fixing block (13). The inner ring of the bearing (3) is fixedly disposed between the pressure ring B (6) and the fixing ring (12).

7. A combined gear shaft according to claim 1, characterized in that: A connecting shaft (18) is fixedly installed on the right side of the rotating shaft (1).

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