NZ759210A - Device for fixing gearbox body with rotating shaft - Google Patents

Abstract

The present invention is aimed at providing a device for fixing a gearbox body with a rotating shaft, which is convenient to fix a rotating shaft with a gearbox body. In the device for fixing a gearbox body with a rotating shaft, each of two ends of the rotating shaft comprises a thick section and a thin section, the two thick sections are located between the two thin sections, and the thick sections and the thin sections form a step structure, wherein the device comprises a soleplate; a rotary plate is arranged on the soleplate; a bearing press and a circlip press are at least arranged on the rotary plate side; the rotary plate is matched with a rotary plate driving device; a number of rotating shaft positioning seats for positioning the rotating shaft are formed on the rotary plate; each of the bearing press and the circlip press comprises a press head, and an evading groove running through the press head downward to evade the ends of the rotating shaft is formed on the press head; each of the rotating shaft positioning seats comprises a positioning sleeve; through holes running through the rotary plate from upper and lower sides are formed on the rotary plate; and the positioning sleeves are fixed in the through holes.

Description

DEVICE FOR FIXING GEARBOX BODY WITH ROTATING SHAFT Technical Field of the Invention The present invention relates to the technical field of reduction xes, and in particular to a device for fixing a x body with a rotating shaft. ound of the Invention A rotating shaft is fixed on a gearbox body of a reduction gearbox, and teeth and a reduction gear in meshing fit with the teeth are arranged on the rotating shaft. The reduction gear is fixed on an output shaft, ends of the rotating shaft are ured to be linked with a driving motor, and ends of the output shaft are configured to be linked with a device to be driven. The rotating shaft is fixed on the gearbox body through bearings, and bearings need to be press-fitted at two ends of the rotating shaft. In order to avoid the axial disengagement of the bearings, it is necessary to press-fit circlips on the rotating shaft, so that the axial limitation of the bearings is realized by the circlips and the gearbox body. Annular s, in which the circlips are fitted, are formed on thick sections of the rotating shaft. An inner hole running through two opposite sides is formed on the gearbox body, and step structures are formed at two ends of the inner hole to press-fit the bearings.

In order to facilitate the linkage of the rotating shaft with the driving motor through a r, two ends of the rotating shaft each have a thick section and a thin section. The section area of the thick sections is greater than that of the thin sections. Double planes, a single plane or four plates are milled on the thin sections, or the outer diameter of the thin sections is less than that of the thick sections.

Summary of the Invention The present invention is aimed at providing a device for fixing a gearbox body with a rotating shaft, which is ient to fix a rotating shaft with a gearbox body.

For this purpose, the present invention employs the following technical solutions. A device for fixing a x body with a rotating shaft is ed, each of two ends of the rotating shaft including a thick section and a thin n, the two thick sections being located between the two thin sections, and the thick sections and the thin sections forming a step structure, wherein the device includes a soleplate; a rotary plate is arranged on the soleplate; a bearing press and a circlip press are at least arranged on the rotary plate side; the rotary plate is matched with a rotary plate driving device; a number of rotating shaft positioning seats for positioning the rotating shaft are formed on the rotary plate; each of the bearing press and the circlip press includes a press head, and an evading groove running through the press head downward to evade the ends of the rotating shaft is formed on the press head; each of the rotating shaft oning seats includes a positioning sleeve; h holes running through the rotary plate from upper and lower sides are formed on the rotary plate; the positioning sleeves are fixed in the h holes; each of the positioning sleeves includes an upper positioning sleeve section and a lower positioning sleeve section, with the inner diameter of the upper positioning sleeve section being greater than that of the lower positioning sleeve section to form a step structure; and, the rotating shaft is placed in the positioning sleeves so that step es of the ends of the rotating shaft are supported on step surfaces of the positioning sleeves.

When in use of the device of the present invention, the rotating shaft, the gearbox body and the bearing are placed on the ng shaft positioning seats. By the positioning s of the rotating shaft positioning seats, the rotating shaft is supported and the ality of the rotating shaft is maintained.

The g is arranged between the rotating shaft and the gearbox body to realize the positioning of the bearing, the rotating shaft and the gearbox body, and by the bearing press, the bearing is pressed into the gearbox body. A circlip is placed on the rotating shaft, and is then press-fitted in the annular groove on the rotating shaft by the press head of the circlip press. In the present ion, the rotating shaft is positioned by the rotating shaft positioning seats, so it is more convenient for press-fitting components on the ng shaft.

Preferably, the positioning sleeves are fixed in the through holes, and upper ends of the positioning s are extended to an upper side of the rotary plate; and, when the x body is placed on the rotary plate, outer circumferential walls of the upper ends of the positioning sleeves are in clearance fit with an inner circumferential wall of a lower end of an inner hole of the gearbox body. With this arrangement, the axis of the rotating shaft is coaxial to the inner hole of the gearbox body, so it is convenient for fitting the bearing.

Preferably, a circlip feeding mechanism, an oil seal feeding mechanism and an oil seal press are arranged on the soleplate; the rotating shaft positioning seats on the rotary plate successively pass through the bearing press, the p press and the oil seal press; the circlip feeding mechanism is located between the bearing press and the circlip press; the oil seal feeding mechanism is located between the circlip press and the oil seal press; and, an evading groove running through the press head downward to evade the ends of the rotating shaft is formed on the press head of the oil seal press. The fitting of the oil seal on the gearbox body can also be realized in the present invention.

Preferably, a guide sleeve is arranged at an upper end of the rotating shaft; a fitting groove running through the guide sleeve downward to evade the thin section is formed on the guide sleeve; the guide sleeve has a tapered upper end; and, the guide sleeve is placed on the rotating shaft so that the top of the fitting groove comes into contact with an upper end face of the rotating shaft, or a step structure is formed in the g groove so that a step surface of the fitting groove is ted on a step surface of the rotating shaft. The arrangement of the guide sleeve is convenient for feeding circlips.

Preferably, the outer er of a portion of the guide sleeve deviated from the tapered upper end is greater than that of the thick sections; and, when the guide sleeve is placed on the ng shaft, the distance from a lower edge of the guide sleeve to an annular groove on the rotating shaft is less than the thickness of the circlip. With this arrangement, the circlip can be more easily clamped in the annular groove of the rotating shaft.

Preferably, the circlip feeding mechanism includes a material collection mechanism and a g mechanism; the material collection mechanism includes a fixed plate and guide rods fixed on the fixed plate; a number of workpieces to be press-fitted are stacked on top of each other and sheathed on the guide rods ed ally; the feeding mechanism includes a transverse movement ism, a lifting mechanism and a chuck fixation block; the chuck fixation block is transversely moved by the transverse movement mechanism, and the chuck fixation block is moved up and down by the lifting mechanism; a number of on holes running through the chuck fixation block from upper and lower sides and an evading hole running through the chuck fixation block from upper and lower sides are formed on the chuck fixation block; the fixation holes are annularly arranged on a circumferential side of the evading hole at intervals; a magnet is fixed on the chuck fixation block of the circlip feeding mechanism, and disengagement mechanisms are fixed in the fixation holes on the chuck fixation block of the p feeding mechanism; each of the disengagement mechanisms includes a push rod which can move up and down; and, a lower end face of the push rod is located above a lower end face of the chuck on block when the push rod is moved up to a limit position.

In the present invention, the circlip is adsorbed and fed by the magnet. By providing the disengagement mechanisms, the circlip is pressed down by the push rod so that the circlip is disengaged from the magnet. The disengagement mechanisms may be existing small air cylinders.

Preferably, each of the oil seal feeding ism and the circlip feeding mechanism includes a al collection mechanism and a feeding mechanism, chucks are fixed in fixation holes on a chuck on block of the oil seal feeding mechanism, and lower end faces of the chucks are d below a lower end face of the chuck fixation block.

In the present invention, the circlip feeding mechanism and the oil seal feeding mechanism are the same except for the components arranged in the fixation holes, so that it is more convenient to manufacture the device of the present invention.

Preferably, a number of guide rods are fixed on the fixed plate, the guide rods are annularly ed on a circumferential side of the fixed plate at uniform intervals, and a rotating ism, by which the fixed plate s, is arranged on a lower side of the fixed plate. With this arrangement, the feeding mechanism in the present invention can uninterruptedly feed more workpieces to be press-fitted. The ng mechanism may be an existing index plate, a driving motor or a rotary air cylinder.

Preferably, support holes are formed on a lower side of the soleplate relative to the press heads; a number of support mechanisms are arranged below the ate; each of the support mechanisms includes a support rod which can move up and down; the support rods are moved up so that upper ends of the support rods run through the support holes to come into contact with a lower end face of the rotating shaft; the number of the support mechanisms is less than or equal to the number of the t holes; and, a support mechanism is arranged at least on a lower side of the circlip press.

The support mechanisms are used for supporting the rotating shaft to prevent the rotating shaft from shaking up and down during the press-fitting of the components on the rotating shaft. It can be determined, according to actual requirements, whether to arrange the support mechanisms on lower sides of the bearing press and the oil seal press. In the present invention, the support mechanisms may be ted electrically or manually, and the support mechanisms may be air cylinders, push rods or other devices.

The device of the present invention is convenient to use and is able to assemble and fix a rotating shaft with a gearbox body.

Brief Description of the Drawings Fig. 1 is a schematic ure diagram of the t invention; Fig. 2 is a schematic structure diagram of a bearing press and an oil seal press according to the present invention; Fig. 3 is a schematic structure m of the coordination of a gearbox body, a rotating shaft, a soleplate and rotating shaft positioning seats according to the present invention; Fig. 4 is a schematic structure diagram of the coordination of the soleplate and the rotating shaft positioning seats according to the present ion; Fig. 5 is a schematic structure diagram of the coordination of a guide sleeve and the rotating shaft according to the present invention; Fig. 6 is a schematic ure diagram of the gearbox body according to the present invention; Fig. 7 is a schematic structure diagram of a p press according to the t invention; Fig. 8 is a schematic structure diagram of a feeding mechanism of a circlip feeding mechanism according to the present invention; Fig. 9 is a schematic structure diagram of a material collection mechanism according to the present invention; and Fig. 10 is a schematic structure m of a feeding mechanism of an oil seal g mechanism according to the present invention. ed Description of the Invention The t invention will be further described below by specific embodiments with reference to the accompanying drawings.

As shown in Figs. 1-7, the present invention provides a device for fixing a gearbox body with a rotating shaft, which is used for assembling a gearbox body 1 and a rotating shaft 2. The device of the present invention is used for press-fitting a bearing and an oil seal in an inner hole 11 of the x body 1 and used for fixing a circlip 21 in an annular groove 20 on the rotating shaft 2.

In the present invention, each of two ends of the rotating shaft 2 es a thick section 22 and a thin n 23. The two thick sections 22 are located between the two thin sections 23, and the thick sections 22 and the thin sections 23 form a step structure.

The device of the present invention includes a soleplate 3. A rotary plate 31, which is circular, is arranged on the soleplate 3. A bearing press 32, a circlip feeding ism 33, a circlip press 34, an oil seal feeding mechanism 35 and an oil seal press 36 are successively arranged on a circumferential side of the rotary plate 31 in a clockwise direction. No component is arranged on the front side of the rotary plate 31, so that it is convenient for manual bearing feeding. In the present ion, the rotary plate 31 is fixed on a rotary plate driving device 37. The rotary plate driving device 37 is a rotary air cylinder, an index plate or a motor, and the rotary plate g device 37 is used for rotating the rotary plate 31 at a fixed angle each time and in a clockwise direction. Each of the bearing press 32, the circlip press 34 and the oil seal press 36 includes a press heat 38, and an evading groove 39 running through the press head 38 downward to evade the upper end of the rotating shaft 2 is formed on the press head 38.

A number of rotating shaft positioning seats for positioning the rotating shaft 2 are formed on the rotary plate 31. Each of the rotating shaft positioning seats includes a positioning sleeve 4. h holes, which are annularly arranged at uniform intervals and run through the rotary plate 31 from upper and lower sides, are formed on the rotary plate 31. The positioning sleeves 4 are fixed in the through holes. Each of the positioning sleeves 4 includes an upper positioning sleeve section 41 and a lower positioning sleeve section 42, with the inner er of the upper positioning sleeve section 41 being greater than that of the lower positioning sleeve section 42 to form a step structure. The rotating shaft 2 is placed in the positioning sleeves 4 so that a step surface of the lower end of the rotating shaft 2 is supported on step surfaces of the positioning sleeves 4. Lower ends 42 of the positioning sleeves circumferentially extend to an outer ring portion 43, and the outer ring portion 43 is fixed to the rotary plate 31 through a fastener. The positioning sleeves 4 are fixed in the through holes, and upper ends of the positioning sleeves 4 are ed to an upper side of the rotary plate 31. When the gearbox body 1 is placed on the rotary plate 31, outer circumferential walls of the upper ends of the positioning sleeves 4 are in clearance fit with an inner circumferential wall of a lower end of the inner hole 11 of the gearbox body 1.

As shown in Figs. 3 and 5, a guide sleeve 5 is arranged at an upper end of the rotating shaft 2. A fitting groove 51 running through the guide sleeve 5 rd to evade the thin section 23 is formed on the guide sleeve 5. The guide sleeve 5 has a tapered upper end, and the guide sleeve 5 is placed on the rotating shaft 2 so that the top of the fitting groove 51 comes into contact with an upper end face of the rotating shaft 2. The outer diameter of a portion of the guide sleeve 5 ed from the tapered upper end is greater than that of the thick sections 22. When the guide sleeve 5 is placed on the ng shaft 2, the distance from a lower edge of the guide sleeve 5 to an annular groove 20 on the rotating shaft 2 is less than the thickness of the circlip 21.

As shown in Figs. 1, 8 and 10, each of the circlip feeding mechanism 33 and the oil seal feeding ism 35 includes a material collection mechanism and a g mechanism. The material tion mechanism es a fixed plate 61 and guide rods 62 fixed on the fixed plate 61. A number of workpieces to be press-fitted are stacked on top of each other and sheathed on the guide rods 62 arranged vertically. The guide rods 62 are annularly arranged on a circumferential side of the fixed plate 61 at uniform intervals. A rotating mechanism 63, by which the fixed plate rotates at a fixed angle in a clockwise or counterclockwise direction each time, is arranged on a lower side of the fixed plate 61. The rotating mechanism 63 is a rotary air cylinder, an index plate or a motor.

The feeding mechanism includes a erse movement mechanism 71, a lifting mechanism 72 and a chuck fixation block 73. The chuck fixation block 73 is transversely moved by the transverse movement mechanism 71, and the chuck fixation block 73 is moved up and down by the lifting mechanism 72. A number of fixation holes 74 running through the chuck fixation block 73 from upper and lower sides and an evading hole 75 running through the chuck on block 73 from upper and lower sides are formed on the chuck fixation block 73. The fixation holes 74 are annularly ed on a circumferential side of the evading hole 75 at m intervals. The erse movement mechanism 71 is an air cylinder, and the lifting mechanism 72 is an electric cylinder.

A magnet is fixed in the chuck fixation block of the circlip feeding mechanism 33, and disengagement mechanisms 79 are fixed in the fixation holes on the chuck fixation block 73 of the circlip feeding mechanism 33. Each of the disengagement mechanisms 79 includes a push rod 78 which can move up and down. A lower end face of the push rod 78 is located above a lower end face of the chuck fixation block 73 when the push rod 78 is moved up to a limit position. The disengagement mechanisms 79 are small air cylinders, and the push rods 78 are output shafts of the small air cylinders.

Chucks 76 are fixed in the fixation holes on the chuck on block 73 of the oil seal g mechanism 36, and lower end faces of the chucks 76 are d below a lower end face of the chuck fixation block 73.

As shown in Figs. 2 and 7, support holes 30 are formed on a lower side of the soleplate 3 relative to the press heads 38. A number of support mechanisms 8 are arranged below the soleplate 3. Each of the support mechanisms 8 includes a support rod 81 which can move up and down. The support rods 81 are moved up so that upper ends of the support rods 81 run through the support holes 30 to come into contact with a lower end face of the rotating shaft 2. The number of the support mechanisms 8 is less than or equal to the number of the support holes 30. A support mechanism is arranged at least on a lower side of the circlip press 34. The t mechanisms 8 are air cylinders, and the support rods 81 are output shafts of the air cylinders.

When in use of the device of the present invention, the rotating shaft, the gearbox body and the bearing are placed on the rotating shaft positioning seats. The support to the rotating shaft and the coaxality of the gearbox body and the rotating shaft are ed by the positioning sleeves of the rotating shaft positioning seats. Subsequently, the rotary plate is rotated so that the ng shaft positioning seats successively pass through the bearing press, the circlip feeding mechanism, the circlip press, the oil seal feeding ism and the oil seal press. Thus, one end of the rotating shaft is fixed to the gearbox body. Finally, the gearbox body is turned upside down, and the other side of the rotating shaft is fixed to the gearbox body.

The device of the present invention is convenient to use and is able to assemble and fix a ng shaft with a gearbox body.

Claims (9)

Claims 1.

1. A device for fixing a gearbox body with a rotating shaft, each of two ends of the rotating shaft comprising a thick section and a thin section, the two thick sections being located between the two thin sections, and the thick sections and the thin sections forming a step structure, wherein the device comprises a soleplate; a rotary plate is arranged on the soleplate; a bearing press and a circlip press are at least arranged on the rotary plate side; the rotary plate is matched with a rotary plate g device; a number of rotating shaft positioning seats for positioning the ng shaft are formed on the rotary plate; each of the bearing press and the circlip press comprises a press head, and an evading groove running h the press head downward to evade the ends of the rotating shaft is formed on the press head; each of the rotating shaft oning seats comprises a oning sleeve; through holes running through the rotary plate from upper and lower sides are formed on the rotary plate; the positioning sleeves are fixed in the through holes; each of the positioning sleeves comprises an upper positioning sleeve n and a lower positioning sleeve section, with the inner diameter of the upper positioning sleeve section being greater than that of the lower positioning sleeve n to form a step structure; and, the rotating shaft is placed in the positioning sleeves so that step surfaces of the ends of the rotating shaft are supported on step surfaces of the positioning sleeves.

2. The device for fixing a gearbox body with a rotating shaft according to claim 1, wherein the positioning sleeves are fixed in the through holes, and upper ends of the positioning sleeves are ed to an upper side of the rotary plate; and, when the gearbox body is placed on the rotary plate, outer circumferential walls of the upper ends of the positioning sleeves are in clearance fit with an inner circumferential wall of a lower end of an inner hole of the gearbox body.

3. The device for fixing a gearbox body with a rotating shaft according to claim 1, wherein a circlip feeding mechanism, an oil seal g mechanism and an oil seal press are arranged on the ate; the rotating shaft positioning seats on the rotary plate successively pass through the bearing press, the circlip press and the oil seal press; the circlip feeding mechanism is located between the bearing press and the circlip press; the oil seal feeding mechanism is located between the p press and the oil seal press; and, an evading groove running through the press head downward to evade the ends of the rotating shaft is formed on the press head of the oil seal press.

4. The device for fixing a x body with a rotating shaft according to claim 1, wherein a guide sleeve is arranged at an upper end of the rotating shaft; a fitting groove running through the guide sleeve downward to evade the thin section is formed on the guide sleeve; the guide sleeve has a tapered upper end; and, the guide sleeve is placed on the rotating shaft so that the top of the fitting groove comes into contact with an upper end face of the rotating shaft, or a step structure is formed in the fitting groove so that a step surface of the fitting groove is supported on a step surface of the rotating shaft.

5. The device for fixing a gearbox body with a ng shaft ing to claim 4, wherein the outer diameter of a portion of the guide sleeve deviated from the tapered upper end is greater than that of the thick sections; and, when the guide sleeve is placed on the rotating shaft, the distance from a lower edge of the guide sleeve to an annular groove on the rotating shaft is less than the thickness of the circlip.

6. The device for fixing a x body with a rotating shaft according to claim 3, wherein the p feeding mechanism comprises a material collection mechanism and a feeding mechanism; the material collection mechanism comprises a fixed plate and guide rods fixed on the fixed plate; a number of eces to be press-fitted are stacked on top of each other and sheathed on the guide rods arranged vertically; the feeding mechanism comprises a transverse movement ism, a lifting mechanism and a chuck fixation block; the chuck fixation block is transversely moved by the transverse nt mechanism, and the chuck fixation block is moved up and down by the lifting mechanism; a number of on holes running through the chuck fixation block from upper and lower sides and an evading hole running through the chuck fixation block from upper and lower sides are formed on the chuck fixation block; the fixation holes are annularly arranged on a circumferential side of the evading hole at intervals; a magnet is fixed on the chuck fixation block of the circlip g mechanism, and agement mechanisms are fixed in the fixation holes on the chuck fixation block of the p feeding mechanism; each of the disengagement mechanisms comprises a push rod which can move up and down; and, a lower end face of the push rod is located above a lower end face of the chuck fixation block when the push rod is moved up to a limit position.

7. The device for fixing a gearbox body with a rotating shaft according to claim 6, wherein each of the oil seal feeding ism and the circlip feeding mechanism ses a material collection mechanism and a feeding mechanism, chucks are fixed in fixation holes on a chuck fixation block of the oil seal feeding mechanism, and lower end faces of the chucks are d below a lower end face of the chuck fixation block.

8. The device for fixing a gearbox body with a rotating shaft ing to claim 6 or 7, wherein a number of guide rods are fixed on the fixed plate, the guide rods are annularly arranged on a circumferential side of the fixed plate at uniform intervals, and a rotating mechanism, by which the fixed plate rotates, is arranged on a lower side of the fixed plate.

9. The device for fixing a gearbox body with a rotating shaft according to claim 1 or 3, wherein support holes are formed on a lower side of the soleplate relative to the press heads; a number of support mechanisms are ed below the soleplate; each of the support mechanisms comprises a support rod which can move up and down; the support rods are moved up so that upper ends of the support rods run through the support holes to come into contact with a lower end face of the rotating shaft; the number of the support mechanisms is less than or equal to the number of the support holes; and, a t mechanism is arranged at least on a lower side of the circlip press. ‘1 7_fl H W 32 36 _ 7 \/38 la Bea/\fl 5: 5M * * 2W %G g @> @ WZI 31 ~ 1? WIQ