Gear box of reducer

Abstract

The present invention provides a gear box of a reducer, which is suitable for a reducer of a planetary gear transmission. It belongs to the technical field of transmission devices, and includes an upper box and a lower box. One end of the lower box is provided with a first circular bearing seat, and the first circular bearing seat is provided with an input shaft hole. Both sides of the lower box are provided with semicircular seat grooves, and the opening of the lower box is provided with a lower tooth edge. The upper box includes a first box and a second box, which are separated. One side of the first box used for splicing the second box is provided with an embedding groove, and one side of the second box used for splicing the first box is provided with an embedding edge. When the first box and the second box are spliced ​​into a complete upper box, an upper cavity corresponding to the lower cavity of the lower box is formed, and one end of the first box and one end of the second box jointly form a semicircular seat body, and the outer sides of the first box and the second box used for forming the upper cavity are respectively provided with a second circular bearing seat and a third circular bearing seat, and the second circular bearing seat and the third circular bearing seat are provided with an output shaft hole.

Description

Technical Field

[0001] The invention relates to the technical field of transmission devices, in particular to a gear box of a reducer. Background Art

[0002] The gearbox of the reducer is a transmission machine used for deceleration. It does not generate power by itself, but uses gears and speed converters to reduce the speed of the motor to the required output speed and obtain a larger torque.

[0003] A patent document with application number CN200610005782.3 discloses the basic structure of the gearbox, and the gearboxes popular on the market now retain this basic structure. It includes an upper box body and a lower box body, and the upper and lower box bodies are composed of two semicircles where the bearings are embedded. The semicircular structure makes it expand preferentially to both sides after thermal expansion, with the mouth opening outward. Further, the bearing seat changes from a full circle to an ellipse, resulting in excessive clearance between the outer ring of the bearing and the left and right sides of the box body. When the equipment is running, it will preferentially move radially to both sides, impacting the bearing seat and causing wear. So every time the gearbox is overhauled, the left and right sides of the bearing seat must be more severely worn than the upper and lower sides. Therefore, as the use time increases, its internal gears are prone to excessive wear. Summary of the invention

[0004] The present invention aims to solve the above-mentioned technical problem and provides a gear box of a reducer.

[0005] The technical solution of the present invention is a gear box of a reducer, comprising an upper box and a lower box, one end of the lower box is provided with a first circular bearing seat, the first circular bearing seat is provided with an input shaft hole, both sides of the lower box are provided with semicircular seat grooves, the opening of the lower box is provided with a lower tooth edge, the semicircular seat groove is connected to the lower tooth edge, the upper box comprises a first box and a second box that are separated, the first box is provided with a groove on one side for splicing the second box, the groove is formed in a chamfered rubber edge, the second box is provided with an embedded edge on one side for splicing the first box, and when the first box and the second box are spliced ​​together to form a complete upper box, a connection with the lower box is formed. The lower cavity of the box body corresponds to the upper cavity, one end of the first box body and one end of the second box body jointly form a semicircular seat body, the first box body and the second box body are used to form the outer sides of the two sides of the upper cavity and are respectively provided with a second circular bearing seat and a third circular bearing seat, the second circular bearing seat and the third circular bearing seat are provided with an output shaft hole, the outer sides of the first box body and the second box body are provided with an upper tooth edge, the semicircular seat body, the second circular bearing seat, and the third circular bearing seat are all connected to the upper tooth edge, the semicircular seat groove is for the second circular bearing seat and the third circular bearing seat to be embedded, and the semicircular seat body is connected to the first circular bearing seat.

[0006] As an embodiment, it also includes a first gear shaft and a second gear shaft that are separated, the lengths of the first gear shaft and the second gear shaft respectively correspond to the widths of the first housing and the second housing, the first gear shaft is provided with a threaded hole in the axial direction, the second gear shaft is provided with a threaded through hole in the axial direction, the first gear shaft is provided with a convex ring at one end for connecting to the second gear shaft, the convex ring is provided with locking teeth along its radial direction, the second gear shaft is provided with an inner ring groove at one end for connecting to the first gear shaft, the width of the inner ring groove is the same as the length of the locking teeth, and the second gear shaft is also provided with an outer ring groove at one end for connecting to the first gear shaft An annular groove, the width of the outer annular groove is the same as the width of the convex ring, a tooth groove for the locking tooth to enter is also provided between the inner annular groove and the outer annular groove, a limit block for the circumferential limit of the locking tooth is also provided between the inner annular groove and the outer annular groove, the first gear shaft and the second gear shaft are fixedly connected by a hexagonal bolt, an end of the second gear shaft away from the first gear shaft is provided with an end groove for the head of the hexagonal bolt to extend into, an end sleeve is sleeved on the second gear shaft, the end sleeve includes a rubber sleeve and six plugs arranged on the rubber sleeve, each of the plugs is used to fill the gap between the head of the hexagonal bolt and the inner wall of the end groove.

[0007] As an implementation mode, a plurality of upper connecting columns are provided on the upper tooth edge, a plurality of lower connecting columns are provided on the lower tooth edge, and the upper connecting columns and the lower connecting columns are connected by a screw assembly.

[0008] As an implementation mode, a plurality of positioning guide pillars are provided on the lower tooth edge, and a plurality of guide holes are provided on the upper tooth edge.

[0009] As an implementation mode, a thin sheet-shaped first sealing member is provided between the upper tooth edge and the lower tooth edge.

[0010] As an embodiment, a sealing groove is provided in the semicircular seat groove, and a second sealing member matching the sealing groove is provided on the second circular bearing seat and the third circular bearing seat.

[0011] As an embodiment, the semicircular seat body is provided with a side mounting hole, and the first circular bearing seat is connected to the semicircular seat body by a side mounting bolt that cooperates with the side mounting hole.

[0012] As an embodiment, the convex ring and the threaded hole are concentric, the two ends of the locking tooth respectively protrude from the inner and outer edges of the convex ring, the inner ring groove, the outer ring groove and the threaded through hole are concentric, the tooth groove is opened on the inner and outer edges of the outer ring groove, and the limit block includes an inner block and an outer block, and the inner block and the outer block are respectively arranged on the inner and outer edges of the outer ring groove along the radial direction of the outer ring groove.

[0013] As an embodiment, the hexagonal bolt is screwed into the first gear shaft and the second gear shaft in a clockwise direction, and the inner block and the outer block are located on the clockwise side of the tooth groove that is closer to the inner ring groove.

[0014] As an implementation manner, the locking teeth and the tooth grooves are both provided in two locations.

[0015] As an implementation manner, a base is provided at the bottom of the lower box body.

[0016] Compared with the prior art, the present invention has the beneficial effect that the main body of the gear box of the reducer is divided into three parts, namely, the lower box, the first box and the second box. Among them, there is a circular bearing seat on each of the lower box, the first box and the second box, namely, the first circular bearing seat, the second circular bearing seat and the third circular bearing seat. Corresponding to the first box and the second box, the gear shaft is also divided into two parts, the first gear shaft and the second gear shaft. In addition, the lengths of the first gear shaft and the second gear shaft correspond to the widths of the second box and the first box, respectively. The gear box of the reducer uses a circular bearing seat instead of a traditional semicircular bearing seat, and what is adapted to the circular bearing seat is a split gear shaft and a horizontal push splicing upper box, which breaks the assembly limitations brought by the circular bearing seat. Finally, in a high-temperature use environment, there is no situation where the bearing seat expands preferentially to both sides after being heated and the mouth opens outward, and there is no preferential impact on the bearing seat to both sides when the equipment is running, causing wear, thereby extending the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A first structural schematic diagram of a gear box of a reducer provided in an embodiment of the present invention;

[0018] Figure 2 A schematic diagram of the structure of an upper box provided in an embodiment of the present invention;

[0019] Figure 3 A schematic diagram of the structure of a first gear shaft and a second gear shaft provided in an embodiment of the present invention;

[0020] Figure 4 A schematic diagram of the connection between the first gear shaft and the second gear shaft provided in an embodiment of the present invention;

[0021] Figure 5 A second structural schematic diagram of the gear box of the reducer provided in an embodiment of the present invention.

[0022] In the figure: 1, upper housing; 2, lower housing; 3, first circular bearing seat; 4, input shaft hole; 5, semicircular seat groove; 6, lower tooth edge; 7, first housing; 8, second housing; 9, embedded groove; 10, embedded edge; 11, lower cavity; 12, upper cavity; 13, semicircular housing; 14, second circular bearing seat; 15, third circular bearing seat; 16, output shaft hole; 17, upper tooth edge; 18, first gear shaft; 19, second gear shaft; 20, threaded hole; 21, threaded through hole; 22, convex ring; 23, lock tooth; 24, Inner ring groove; 25, outer ring groove; 26, tooth groove; 27, limit block; 28, hexagonal bolt; 29, end groove; 30, end sleeve; 31, rubber sleeve; 32, plug; 33, upper connecting column; 34, lower connecting column; 35, screw assembly; 36, positioning guide column; 37, guide hole; 38, first seal; 39, sealing groove; 40, second seal; 41, side mounting hole; 42, side mounting bolt; 43, inner block; 44, outer block; 45, base; 46, sun gear; 47, planetary gear; 48, planetary carrier. DETAILED DESCRIPTION

[0023] The above and other embodiments and advantages of the present invention are described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.

[0024] In one embodiment, Figures 1 to 4 shown.

[0025] The gear housing of the reducer provided in this embodiment includes an upper housing 1 and a lower housing 2. A first circular bearing seat 3 is provided at one end of the lower housing 2. An input shaft hole 4 is provided on the first circular bearing seat 3. Semicircular seat grooves 5 are provided on both sides of the lower housing 2. A lower tooth edge 6 is provided at the opening of the lower housing 2. The semicircular seat grooves 5 are connected to the lower tooth edge 6. The upper housing 1 includes a first housing 7 and a second housing 8 that are separated. A side of the first housing 7 for splicing the second housing 8 is provided with an embedding groove 9. The embedding groove 9 is formed in a chamfered rubber edge. A side of the second housing 8 for splicing the first housing 7 is provided with an embedding edge 10. When the first housing 7 and the second housing 8 are spliced ​​together to form a complete upper housing 1, a lower cavity of the lower housing 2 is formed. 11 corresponds to the upper cavity 12, one end of the first box body 7 and one end of the second box body 8 jointly form a semicircular seat body 13, the first box body 7 and the second box body 8 are used to form the outer sides of the two sides of the upper cavity 12 are respectively provided with a second circular bearing seat 14 and a third circular bearing seat 15, the second circular bearing seat 14 and the third circular bearing seat 15 are provided with an output shaft hole 16, the outer sides of the first box body 7 and the second box body 8 are both provided with an upper tooth edge 17, the semicircular seat body 13, the second circular bearing seat 14, and the third circular bearing seat 15 are all connected to the upper tooth edge 17, the semicircular seat groove 5 is for the second circular bearing seat 14 and the third circular bearing seat 15 to be embedded, and the semicircular seat body 13 is connected to the first circular bearing seat 3.

[0026] In this embodiment, the gear box body is different from the traditional gear box body with upper and lower parts and a semicircular opening. The main body of the gear box body is divided into three parts, namely the lower box body 2, the first box body 7 and the second box body 8. Among them, there is a circular bearing seat on each of the lower box body 2, the first box body 7 and the second box body 8, namely the first circular bearing seat 3, the second circular bearing seat 14 and the third circular bearing seat 15.

[0027] In one embodiment, Figures 1 to 4 shown.

[0028] The gear housing of the reducer provided in this embodiment includes an upper housing 1 and a lower housing 2. A first circular bearing seat 3 is provided at one end of the lower housing 2. An input shaft hole 4 is provided on the first circular bearing seat 3. Semicircular seat grooves 5 are provided on both sides of the lower housing 2. A lower tooth edge 6 is provided at the opening of the lower housing 2. The semicircular seat grooves 5 are connected to the lower tooth edge 6. The upper housing 1 includes a first housing 7 and a second housing 8 that are separated. A side of the first housing 7 for splicing the second housing 8 is provided with an embedding groove 9. The embedding groove 9 is formed in a chamfered rubber edge. A side of the second housing 8 for splicing the first housing 7 is provided with an embedding edge 10. When the first housing 7 and the second housing 8 are spliced ​​together to form a complete upper housing 1, a lower housing 2 is formed. The upper cavity 12 corresponds to the lower cavity 11, one end of the first box body 7 and one end of the second box body 8 jointly form a semicircular seat body 13, and the first box body 7 and the second box body 8 are used to form the outer sides of the upper cavity 12, respectively, and a second circular bearing seat 14 and a third circular bearing seat 15 are provided. The second circular bearing seat 14 and the third circular bearing seat 15 are provided with an output shaft hole 16, and the outer sides of the first box body 7 and the second box body 8 are provided with an upper tooth edge 17, and the semicircular seat body 13, the second circular bearing seat 14, and the third circular bearing seat 15 are connected to the upper tooth edge 17, and the semicircular seat groove 5 is provided for the second circular bearing seat 14 and the third circular bearing seat 15 to be embedded, and the semicircular seat body 13 is provided for the first circular shaft The bearing seat 3 is connected; it also includes a split first gear shaft 18 and a second gear shaft 19, the lengths of the first gear shaft 18 and the second gear shaft 19 respectively correspond to the widths of the second housing 8 and the first housing 7, a threaded hole 20 is provided in the axial direction of the first gear shaft 18, and a threaded through hole 21 is provided in the axial direction of the second gear shaft 19, and a convex ring 22 is provided at one end of the first gear shaft 18 for connecting to the second gear shaft 19, and a locking tooth 23 is provided on the convex ring 22 along its radial direction, and an inner ring groove 24 is provided at one end of the second gear shaft 19 for connecting to the first gear shaft 18, and the width of the inner ring groove 24 is the same as the length of the locking tooth 23, and an outer ring groove is also provided at one end of the second gear shaft 19 for connecting to the first gear shaft 18 25, the width of the outer ring groove 25 is the same as the width of the convex ring 22, a tooth groove 26 for the lock tooth 23 to enter is provided between the inner ring groove 24 and the outer ring groove 25, and a limit block 27 for the circumferential limit of the lock tooth 23 is provided between the inner ring groove 24 and the outer ring groove 25. The first gear shaft 18 and the second gear shaft 19 are fixedly connected by a hexagonal bolt 28, and an end groove 29 for the head of the hexagonal bolt 28 to extend into is provided at one end of the second gear shaft 19 away from the first gear shaft 18, and an end sleeve 30 is sleeved on the second gear shaft 19, and the end sleeve 30 includes a rubber sleeve 31 and six plugs 32 arranged on the rubber sleeve 31, and each plug 32 is used to fill the gap between the head of the hexagonal bolt 28 and the inner wall of the end groove 29.

[0029] In this embodiment, the gear box body is different from the traditional gear box body with upper and lower parts and a semicircular opening. The main body of the gear box body is divided into three parts, namely the lower box body 2, the first box body 7 and the second box body 8. Among them, there is a circular bearing seat on the lower box body 2, the first box body 7 and the second box body 8, respectively, the first circular bearing seat 3, the second circular bearing seat 14 and the third circular bearing seat 15. Corresponding to the first box body 7 and the second box body 8, the gear shaft is also divided into two parts, the first gear shaft 18 and the second gear shaft 19. In addition, the lengths of the first gear shaft 18 and the second gear shaft 19 correspond to the widths of the second box body 8 and the first box body 7, respectively. Therefore, during assembly, the first gear shaft 18 and the second gear shaft 19 are installed separately, that is, the first gear shaft 18 is connected to the second box body 8 through a bearing after the parts on it are independently installed, and the second gear shaft 19 is also connected to the first box body 7 through a bearing after the parts on it are independently installed. Then, the first box body 7 and the second box body 8 are spliced ​​with each other when the two output shaft holes 16 are axially facing each other. During the splicing process, the rim 10 is pressed against the rubber edge, and after being guided by the chamfer, the rim 10 is embedded in the embedding groove 9. At this time, the end of the second gear shaft 19 is exposed outside the first box body 7. By rotating the hexagonal bolt 28 into the second gear shaft 19, the second gear shaft 19 can be driven to rotate clockwise relative to the first gear shaft 18, thereby automatically locking the second gear shaft 19 relative to the first gear shaft 18. Finally, the hexagonal bolt 28 is also connected to the first gear shaft 18, and the two gear shafts are formed into one. Then, each plug 32 of the end sleeve 30 is filled in the gap between the head of the hexagonal bolt 28 and the inner wall of the end groove 29, and the reverse outward rubber sleeve 31 can make the rubber sleeve 31 sleeve the outside of the second gear shaft 19, thereby locking the hexagonal bolt 28 with the help of the friction between the rubber sleeve 31 and the plug 32. After the upper housing 1 is assembled, the second circular bearing seat 14 and the third circular bearing seat 15 are inserted into the semicircular seat groove 5, and the first circular bearing seat 3 is installed on the semicircular seat body 13. The upper housing 1 and the lower housing 2 are connected by a screw assembly 35.

[0030] In this embodiment, a circular bearing seat is used to replace the traditional semicircular bearing seat. The split gear shaft and the horizontal push splicing upper housing are used to match the circular bearing seat, breaking the assembly limitations brought by the circular bearing seat. Finally, in a high-temperature use environment, there is no situation where the bearing seat expands preferentially to both sides and opens outward after being heated, and there is no preferential impact on the bearing seat to both sides during operation to cause wear, thereby extending the service life.

[0031] In one embodiment, Figure 5 shown.

[0032] The gear housing of the reducer provided in this embodiment is also applicable to the reducer of planetary gear transmission. Compared with the aforementioned reducer, the gear housing of the reducer of planetary gear transmission is slightly different, and is adapted to the structure of parallel shafts. The overall structure is still a structure of splicing the first housing 7 and the second housing 8. The sun gear 46 is mounted on the first gear shaft 18, and the planet carrier 48 and the planetary gear 47 are mounted on the second gear shaft 19.

[0033] In one embodiment, Figure 1 shown.

[0034] The gear housing of the reducer provided in this embodiment has a plurality of upper connecting columns 33 on its upper tooth edge 17, a plurality of lower connecting columns 34 on its lower tooth edge 6, and the upper connecting columns 33 and the lower connecting columns 34 are connected by a screw assembly 35. A plurality of positioning guide columns 36 are provided on its lower tooth edge 6, and a plurality of guide holes 37 are provided on its upper tooth edge 17.

[0035] In this embodiment, by setting the upper tooth edge 17 on the first box body 7 and the second box body 8, setting the lower tooth edge 6 on the lower box body 2, and then under the positioning cooperation of the positioning guide column 36 and the guide hole 37, the upper box body 1 and the lower box body 2 are connected. In this embodiment, the semicircular opening structure is replaced from the original bearing seat to the semicircular seat groove 5, avoiding the direct impact of the gear shaft with large torque. At the same time, since each screw assembly 35 connects the upper box body 1 and the lower box body 2, the semicircular seat groove 5 will not be preferentially impacted.

[0036] In one embodiment, Figure 1 shown.

[0037] The gear housing of the reducer provided in this embodiment has a thin sheet-shaped first seal 38 between the upper tooth edge 17 and the lower tooth edge 6. A seal groove 39 is provided in the semicircular seat groove 5, and a second seal 40 matching the seal groove 39 is provided on the second circular bearing seat 14 and the third circular bearing seat 15.

[0038] In this embodiment, a sealing structure of more than one form of the first sealing member 38 and the second sealing member 40 is used to seal the upper housing 1 and the lower housing 2. In fact, the first housing 7 and the second housing 8 are also sealed by the embedding groove 9 and the embedding edge 10. Compared with the sealing performance of the upper housing 1, the gear housing has higher requirements on the sealing performance between the upper housing 1 and the lower housing 2, because the gear oil is to be filled in the lower housing 2.

[0039] In one embodiment, Figure 1 shown.

[0040] The gear box of the reducer provided in this embodiment has a semicircular seat body 13 provided with a side mounting hole 41 , and the first circular bearing seat 3 is connected to the semicircular seat body 13 via a side mounting bolt 42 that matches the side mounting hole 41 .

[0041] In this embodiment, the semicircular seat body 13 is used to connect the first circular bearing seat 3, so that the upper box body 1 and the lower box body 2 are connected in multiple directions, namely the vertical direction and the horizontal direction, thereby enhancing the connection strength between the upper box body 1 and the lower box body 2.

[0042] In one embodiment, Figure 1 shown.

[0043] The gear housing of the reducer provided in this embodiment has a convex ring 22 and a threaded hole 20 that are concentric, two ends of the lock teeth 23 protrude from the inner and outer edges of the convex ring 22 respectively, the inner ring groove 24, the outer ring groove 25 and the threaded through hole 21 are concentric, the tooth groove 26 is provided at the inner and outer edges of the outer ring groove 25, and the limit block 27 includes an inner block 43 and an outer block 44, which are respectively provided at the inner and outer edges of the outer ring groove 25 along the radial direction of the outer ring groove 25. The hexagonal bolt 28 is screwed into the first gear shaft 18 and the second gear shaft 19 in a clockwise direction, and the inner block 43 and the outer block 44 are located on the clockwise side of the inner ring groove 24 with the tooth groove 26 as the starting point.

[0044] In this embodiment, the reason why the gear shaft can be made into the first gear shaft 18 and the second gear shaft 19 is based on this part of the structure. The second gear shaft 19 is installed on the first housing 7, and the first gear shaft 18 is installed on the second housing 8. When the first housing 7 and the second housing 8 are spliced ​​in the transverse movement, the convex ring 22 can enter the inner ring groove 24 through the outer ring groove 25, and the locking tooth 23 also enters the inner ring groove 24 through the tooth groove 26. At this time, the convex ring 22 can still be disengaged from the inner ring groove 24, but as the hexagonal bolt 28 is turned into the threaded hole 20, under the action of the friction force of the thread, the first gear shaft 18 will be driven to rotate clockwise relative to the second gear shaft 19 until the locking tooth 23 contacts the limit block 27. At this time, the convex ring 22 is locked in the inner ring groove 24 and cannot be disengaged. Finally, the first gear shaft 18 and the second gear shaft 19 are connected by the hexagonal bolt 28, and the two gear shafts are connected as one. After all, the first gear shaft 18 and the second gear shaft 19 are transmission shafts. In order to prevent the hexagonal bolts 28 from loosening during the transmission process, the end sleeves 30 are cleverly used.

[0045] The end sleeve 30 has six plugs 32, which can fill the gaps between the head of the hexagonal bolt 28 and the inner wall of the end slot 29. The plugs 32 are made of rubber and can be deformed, so the hexagonal bolt 28 needs to overcome friction at six locations to rotate. And by reversely flanging the rubber sleeve 31 and sleeved on the outside of the second gear shaft 19, the six plugs 32 are fixed by the friction force of the rubber sleeve 31 wrapping the end of the second gear shaft 19.

[0046] In other embodiments, the locking teeth 23 and the tooth grooves 26 of the gear box of the reducer are both provided at two locations. A base 45 is provided at the bottom of the lower housing 2 of the gear box of the reducer.

[0047] The specific implementation methods described above further describe the invention purpose, technical solutions, and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the protection scope of the present invention. It is particularly pointed out that for those skilled in the art, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. The gear box of the reducer is characterized by: The invention comprises an upper housing (1) and a lower housing (2), wherein one end of the lower housing (2) is provided with a first circular bearing seat (3), the first circular bearing seat (3) is provided with an input shaft hole (4), both sides of the lower housing (2) are provided with semicircular seat grooves (5), the opening of the lower housing (2) is provided with a lower tooth edge (6), the semicircular seat grooves (5) are connected to the lower tooth edge (6), the upper housing (1) comprises a first housing (7) and a second housing (8) which are separated, the first housing (7) is provided with a groove (9) on one side for splicing the second housing (8), the groove (9) is formed in a chamfered rubber edge, the second housing (8) is provided with a groove (10) on one side for splicing the first housing (7), and when the first housing (7) and the second housing (8) are spliced ​​together to form a complete upper housing (1), an upper cavity (11) corresponding to the lower cavity (11) of the lower housing (2) is formed. 2), one end of the first housing (7) and one end of the second housing (8) jointly form a semicircular seat body (13), the first housing (7) and the second housing (8) are used to form the outer sides of the two sides of the upper cavity (12), respectively provided with a second circular bearing seat (14) and a third circular bearing seat (15), the second circular bearing seat (14) and the third circular bearing seat (15) are provided with an output shaft hole (16), the outer sides of the first housing (7) and the second housing (8) are provided with an upper tooth edge (17), the semicircular seat body (13), the second circular bearing seat (14), and the third circular bearing seat (15) are all connected to the upper tooth edge (17), the semicircular seat groove (5) is provided for the second circular bearing seat (14) and the third circular bearing seat (15) to be engaged, and the semicircular seat body (13) is provided for the first circular bearing seat (3) to be connected; The invention also comprises a first gear shaft (18) and a second gear shaft (19) which are separated, wherein the lengths of the first gear shaft (18) and the second gear shaft (19) respectively correspond to the widths of the first housing (7) and the second housing (8); a threaded hole (20) is provided in the axial direction of the first gear shaft (18); a threaded through hole (21) is provided in the axial direction of the second gear shaft (19); a convex ring (22) is provided at one end of the first gear shaft (18) for connecting to the second gear shaft (19); a locking tooth (23) is provided on the convex ring (22) along its radial direction; an inner ring groove (24) is provided at one end of the second gear shaft (19) for connecting to the first gear shaft (18); the width of the inner ring groove (24) is the same as the length of the locking tooth (23); an outer ring groove (25) is provided at one end of the second gear shaft (19) for connecting to the first gear shaft (18); The width of the first gear shaft (18) is the same as the width of the convex ring (22); a tooth groove (26) for the locking tooth (23) to enter is provided between the inner ring groove (24) and the outer ring groove (25); a limit block (27) for circumferentially limiting the locking tooth (23) is provided between the inner ring groove (24) and the outer ring groove (25); the first gear shaft (18) and the second gear shaft (19) are fixedly connected by a hexagonal bolt (28); an end groove (29) for the head of the hexagonal bolt (28) to extend into is provided at one end of the second gear shaft (19) away from the first gear shaft (18); an end sleeve (30) is sleeved on the second gear shaft (19); the end sleeve (30) includes a rubber sleeve (31) and six plugs (32) provided on the rubber sleeve (31); each of the plugs (32) is used to fill the gap between the head of the hexagonal bolt (28) and the inner wall of the end groove (29).

2. The gear box of the reducer according to claim 1, characterized in that: The upper tooth edge (17) is provided with a plurality of upper connecting columns (33), and the lower tooth edge (6) is provided with a plurality of lower connecting columns (34). The upper connecting columns (33) and the lower connecting columns (34) are connected via a screw assembly (35).

3. The gear housing of the reducer according to claim 1, characterized in that: A plurality of positioning guide pillars (36) are provided on the lower tooth edge (6), and a plurality of guide holes (37) are provided on the upper tooth edge (17).

4. The gear housing of the reducer according to claim 1, characterized in that: A thin sheet-shaped first sealing member (38) is provided between the upper tooth edge (17) and the lower tooth edge (6).

5. The gear housing of the reducer according to claim 1, characterized in that: A sealing groove (39) is provided in the semicircular seat groove (5), and a second sealing member (40) matching the sealing groove (39) is provided on both the second circular bearing seat (14) and the third circular bearing seat (15).

6. The gear housing of the reducer according to claim 1, characterized in that: The semicircular seat body (13) is provided with a side mounting hole (41), and the first circular bearing seat (3) is connected to the semicircular seat body (13) via a side mounting bolt (42) that matches the side mounting hole (41).

7. The gear housing of the reducer according to claim 1, characterized in that: The convex ring (22) and the threaded hole (20) are concentric, the two ends of the locking tooth (23) protrude from the inner and outer edges of the convex ring (22) respectively, the inner ring groove (24), the outer ring groove (25) and the threaded through hole (21) are concentric, the tooth groove (26) is arranged on the inner and outer edges of the outer ring groove (25), and the limit block (27) comprises an inner block (43) and an outer block (44), and the inner block (43) and the outer block (44) are respectively arranged on the inner and outer edges of the outer ring groove (25) along the radial direction of the outer ring groove (25).

8. The gear housing of the reducer according to claim 7, characterized in that: The hexagonal bolt (28) is screwed into the first gear shaft (18) and the second gear shaft (19) in a clockwise direction, and the inner block (43) and the outer block (44) are located on the clockwise side of the inner ring groove (24) with the tooth groove (26) as the starting point.

9. The gear housing of the reducer according to claim 7, characterized in that: The locking teeth (23) and the tooth grooves (26) are both provided at two locations.

Images