An easy-to-assemble, high-load-bearing cycloidal decelerator

Abstract

This invention relates to an easily assembled, high-load-bearing cycloidal reducer. It replaces the original deep groove ball bearing with a cylindrical roller bearing without an outer ring, and replaces the original external output bearing with a roller cage. The rollers are installed in the annular groove of the output disc, forming a bearing structure with the machine body. Specifically, the machine body acts as the outer ring of the bearing, the conveyor disc as the inner ring, and the rollers as the rollers between the inner and outer rings. This reduces friction on the output shaft, increases its transmission efficiency, and prevents some rollers in the annular groove from detaching from the conveyor disc when the adjusting nut is adjusted. Furthermore, the contact area between each roller and the inner wall of the machine body is reduced compared to the original external output bearing, facilitating sliding adjustment within the machine body. A planar thrust bearing is installed between the output disc and the adjusting nut to provide axial support, extending the service life of components. This makes the cycloidal reducer easier to assemble, provides a higher load-bearing capacity, and ensures smoother operation.

Description

Technical Field

[0001] This invention relates to the field of cycloidal reducers, and particularly to a cycloidal reducer device that is easy to assemble and has a high load-bearing capacity. Background Technology

[0002] Currently, transmission devices used in precision servo mechanisms such as robots, precision machine tools, and aerospace require characteristics such as high transmission accuracy, high transmission stiffness, large transmission ratio, high transmission efficiency, small size, light weight, small transmission backlash, and small rotational inertia of rotating parts.

[0003] The applicant previously disclosed an invention patent with application number CN202210043101.1, which disclosed a high-ratio vector cycloidal decelerator, including a body, a rear cover connected to the body, an eccentric shaft with an eccentric structure, a drive disc disposed within the body, an output shaft, a first ball bearing, and a second ball bearing. The output shaft has an output disc arranged parallel to the drive disc and the rear cover. The drive disc is disposed between the output disc and the rear cover. The eccentric shaft is inserted between the rear cover and the output shaft, and its eccentric portion is rotatably mounted on the center portion of the drive disc to drive the drive disc. The eccentric rotation and the use of multiple cycloidal grooves to achieve a high speed ratio output, along with an adjusting nut at the end of the machine body away from the rear cover to apply a certain preload to the output disc and drive disc, can ensure multi-tooth meshing transmission, improve transmission accuracy and rigidity, and eliminate transmission backlash. However, during use, the outer output bearing sleeved on the outer circumference of the output shaft has its outer ring tightly fitted to the inner wall of the machine body and its inner ring tightly fitted to the conveyor disc. This makes it impossible to push the outer output bearing when the adjusting nut is locked, causing the balls in the cycloidal groove to wear and leave gaps, which in turn produces abnormal noise and may even cause the speed reduction device to fail. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide an easy-to-assemble, high-load-bearing cycloidal decelerator that addresses the shortcomings of the prior art. This decelerator is more compact and smaller in size than the original structure. By setting multiple composite bearings, it improves the bidirectional load-bearing capacity of the input and output ends in both radial and axial directions, enhances the overall bending rigidity of the reducer, allows for free movement, and makes it easier and more accurate to adjust the axial clearance, resulting in higher transmission accuracy.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an easy-to-assemble, high-load-bearing cycloidal decelerator, comprising a body, a rear cover connected to the body, an eccentric shaft with an eccentric structure, a drive disc and an output shaft disposed within the body, wherein the output shaft is provided with an output disc arranged parallel to the drive disc and the rear cover, the drive disc is disposed between the output disc and the rear cover, the eccentric shaft is inserted between the rear cover and the output shaft, and its eccentric portion is rotatably mounted on the central portion of the drive disc to drive the drive disc to rotate eccentrically, a speed reduction transmission mechanism is provided between the drive disc, the rear cover and the output disc, the drive disc drives the output shaft to rotate through the speed reduction transmission mechanism, and an adjusting nut threadedly connected to the body is provided at one end of the body away from the rear cover, characterized in that: a roller retainer is provided on the outer circumferential surface of the output disc, a plurality of rollers are provided on the roller retainer surrounding the roller retainer, the rollers are installed in the roller retainer and roll freely, an annular groove is provided on the outer circumferential surface of the output disc for accommodating the rollers, one end of the roller abuts against the annular groove, and the other end abuts against the inner wall of the body.

[0006] By adopting the above technical solution, the original external output bearing is replaced with a roller cage, so that the rollers are installed in the annular groove of the output disc, forming a bearing structure with the machine body. Specifically, the machine body acts as the outer ring of the bearing, the conveyor disc as the inner ring, and the rollers as the spacers between the inner and outer rings. This reduces friction on the output shaft, increases its transmission efficiency, and prevents some rollers in the annular groove from detaching from the conveyor disc when the adjusting nut is adjusted. Furthermore, the contact area between each roller and the inner wall of the machine body is reduced compared to the original external output bearing, facilitating easier... The sliding adjustment within the machine body avoids the abnormal noise caused by the original structure's inability to push the output shaft during adjustment, which resulted in gaps in the reduction transmission mechanism. It also avoids the segmented torque generated by the original bearings between the output disc, drive disc, and rear cover. By decomposing the original segmented torque, the transmission between the output disc, drive disc, and rear cover can freely mesh, and the forces on each part are balanced. This allows the reduction transmission mechanism to slide and mesh freely simultaneously during cycloidal adjustment without jamming, achieving zero backlash operation. As a result, the cycloidal reduction device is easier to assemble, has a stronger load-bearing capacity, and moves more smoothly.

[0007] The aforementioned easy-to-assemble, high-load-bearing cycloidal reducer can be further configured as follows: a cylindrical roller bearing without an outer ring is provided between the eccentric shaft and the rear cover; an inner output bearing is provided between the eccentric shaft and the output shaft; and a cylindrical roller bearing without an outer ring is provided between the eccentric shaft and the drive disc. The inner ring of the cylindrical roller bearing without an outer ring is sleeved on the eccentric shaft, and all of its rear cover rollers abut against the inner wall of the rear cover. The inner ring of the cylindrical roller bearing without an outer ring is sleeved on the eccentric shaft, and all of its drive rollers abut against the inner wall of the drive disc.

[0008] By adopting the above technical solution, when the adjusting nut makes fine adjustments to the reduction gear, the linkage drive disc and eccentric shaft slide. The original deep groove ball bearing is replaced by a cylindrical roller bearing without an outer ring. This allows the eccentric shaft and drive disc to form a bearing structure through the driving cylindrical roller bearing without an outer ring. Specifically, the drive disc acts as the outer ring of the bearing, the eccentric shaft as the inner ring, and the driving rollers as the rollers between the inner and outer rings. This reduces the friction between the eccentric shaft and the drive disc, increases the transmission efficiency of the linkage drive disc in the eccentric part, and facilitates sliding adjustment on the drive disc. The eccentric shaft and the rear cover are connected through the rear cover... The cylindrical roller bearing without an outer ring also constitutes a bearing structure, in which the rear cover serves as the outer ring of the bearing, the eccentric shaft as the inner ring, and the rollers on the rear cover serve as the rollers between the inner and outer rings. This reduces the friction between the eccentric shaft and the rear cover, increases the rotational speed of the eccentric part, and allows for easy sliding adjustment on the rear cover. The output disc, drive disc, and rear cover can freely mesh, and each part is balanced under force. This allows the speed reduction transmission mechanism to slide and mesh freely simultaneously during cycloidal adjustment without jamming, achieving zero backlash operation. This makes the cycloidal speed reduction device easier to assemble, has a stronger load-bearing capacity, and operates more smoothly.

[0009] The aforementioned easy-to-assemble, high-load-bearing cycloidal decelerator can be further configured as follows: the inner wall of the machine body is provided with a guide ring platform, the inner diameter of the guide ring platform is smaller than the inner diameter of the machine body, the guide ring platform is located at one end near the drive disc, and the end connected to the inner wall of the machine body is provided with an inclined guide slide. When the drive disc is linked with the output shaft through the deceleration transmission mechanism, the roller abuts against the guide ring platform.

[0010] By adopting the above technical solution, by setting a guide ring platform, when the output shaft is assembled from the adjusting nut to the rear cover end, it will enter the guide ring platform with a smaller inner diameter from the body with a larger inner diameter, and the positioning and guidance will be conveniently completed by the guide slide until the roller abuts against the guide ring platform, thereby improving the stability of transmission and the convenience of assembly.

[0011] The aforementioned easy-to-assemble, high-load-bearing cycloidal reducer can be further configured such that: a spacer ring is provided around the eccentric shaft, the spacer ring is disposed between the inner output bearing and the driving cylindrical roller bearing without an outer ring, one end of the spacer ring abuts against the inner output bearing, and the other end abuts against the inner ring of the driving cylindrical roller bearing without an outer ring.

[0012] By adopting the above technical solution, since there will be tolerances between reduction devices with different reduction ratios, there will be a gap between the inner wall of the output shaft and the eccentric part, which will cause the inner output bearing to slide during rotation. By setting a spacer ring, the inner output bearing is pressed against the inner wall of the output shaft to prevent it from sliding, thereby improving the transmission stability.

[0013] The aforementioned easy-to-assemble, high-load-bearing cycloidal decelerator can be further configured such that: a planar thrust bearing is provided between the output disc and the adjusting nut, and the planar washers at both ends of the planar thrust bearing abut against the outer surfaces of the output disc and the adjusting nut, respectively.

[0014] By adopting the above technical solution, since the other bearings can only bear radial force, axial support is provided by setting a planar thrust bearing, and the conveyor disc is changed to rolling contact by the planar thrust bearing. The friction coefficient is small, which improves the transmission efficiency, avoids wear between parts, and extends the service life of parts.

[0015] The aforementioned easy-to-assemble, high-load-bearing cycloidal decelerator can be further configured such that a skeleton oil seal is provided between the output shaft and the adjusting nut.

[0016] By adopting the above technical solution, the liquid medium inside the speed reduction device is prevented from flowing out by setting a skeleton oil seal. At the same time, the skeleton oil seal can also prevent external dust from entering, thereby improving the stability of the speed reduction device.

[0017] The aforementioned easy-to-assemble, high-load-bearing cycloidal decelerator can be further configured such that an end cap oil seal is provided at one end of the output shaft near the rear cover.

[0018] By adopting the above technical solution, the liquid medium inside the deceleration device is prevented from flowing out by setting an end cap oil seal.

[0019] The aforementioned easy-to-assemble, high-load-bearing cycloidal reducer can be further configured as follows: the reduction transmission mechanism includes a first-stage central wheel cycloidal groove formed by an inner cycloidal curve arranged along the circumference of the rear cover on the surface facing the drive disk; a second-stage central wheel cycloidal groove formed by an inner cycloidal curve arranged along the circumference of the output disk on the surface facing the drive disk; a first-stage planetary gear cycloidal groove formed by an outer cycloidal curve arranged along the circumference of the drive disk on the surface facing the rear cover; and an outer cycloidal curve arranged along the circumference of the drive disk on the surface facing the output disk. The second-stage planetary gear cycloidal groove is formed by the wire. A first rolling ball is provided between the rear cover and the drive disk. The first ball partially cooperates with the first-stage central wheel cycloidal groove of the rear cover and partially cooperates with the first-stage planetary gear cycloidal groove of the drive disk. A second rolling ball is provided between the output disk and the drive disk. The second ball partially cooperates with the second-stage central wheel cycloidal groove of the output disk and partially cooperates with the second-stage planetary gear cycloidal groove of the drive disk. The eccentric shaft drives the drive disk to rotate eccentrically, and the output shaft rotates in conjunction with the first and second balls.

[0020] Using the above technical solution, the cycloidal curve on the surface of the drive disc facing the rear cover of the cycloidal reducer forms the first-stage planetary gear cycloidal groove and works with the first ball bearing to complete the shock wave function. The cycloidal curve on the output disc side forms the second-stage planetary gear cycloidal groove and works with the second ball bearing to complete the output function. That is, the side corresponding to the cycloidal groove of the inner cycloidal curve must be the cycloidal groove of the outer cycloidal curve stroke. Therefore, two sets of high speed ratio reducers can be formed: inner-outer-outer-inner and outer-iner-outer-inner. The cycloidal groove formed by the inner cycloidal curve will always have two more teeth than the cycloidal groove formed by the outer cycloidal curve. When the rear cover is fixed, the eccentric shaft inputs at high speed, driving the drive disc to generate a shock wave through the eccentric part. The first and second balls are driven. The first ball is located on the cycloidal surface of the stroke of the cycloidal groove of the first-stage central wheel and the cycloidal groove of the first-stage planetary gear, and the second ball is located on the cycloidal surface of the stroke of the cycloidal groove of the second-stage central wheel and the cycloidal groove of the second-stage planetary gear. There is a decreasing function relationship between the two balls, resulting in speed splitting and deceleration output. That is, the eccentric shaft inputs at high speed and drives the drive disc to rotate eccentrically through the eccentric part. This drives the first and second balls to rotate in the opposite direction while rotating with the eccentric shaft, thus forming a high speed ratio and high torque reduction device. Moreover, it uses ball cycloidal motion to achieve zero backlash operation and cycloidal motion trajectory to achieve operation without dead angles.

[0021] The aforementioned easy-to-assemble, high-load-bearing cycloidal decelerator can be further configured such that: an elastic element is provided between the adjusting nut and the planar thrust bearing and / or between the planar thrust bearing and the output disc, and the elastic element abuts against the adjusting nuts and the planar thrust bearing and / or the planar thrust bearing and the output disc on both sides respectively.

[0022] Using the above technical solution, the elastic element can be set between the adjusting nut and the planar thrust bearing, with both ends abutting against the adjusting nut and the planar thrust bearing; or it can be set between the planar thrust bearing and the output disc, with both ends abutting against the planar thrust bearing and the output disc; or a set of elastic elements can be set between the adjusting nut and the planar thrust bearing and between the planar thrust bearing and the output disc. In this way, the components at both ends of the elastic element will compress the elastic element to deform. When a gap appears inside the speed reduction transmission mechanism (ball wear), the elastic element will automatically push the conveyor disc to eliminate the gap, realize adaptive adjustment, avoid abnormal noise, and improve the adjustment accuracy and service life of the speed reducer.

[0023] The aforementioned easy-to-assemble, high-load-bearing cycloidal deceleration device can be further configured such that: the number of elastic elements is not less than two, and the elastic elements are combined in a composite manner.

[0024] By adopting the above technical solution, the composite disc springs can achieve a larger stroke, improve the clearance adjustment capability of the cycloidal reducer, and extend its service life. At the same time, when some discs in the composite disc springs are damaged, only individual discs need to be replaced, which facilitates maintenance and reduces costs.

[0025] The present invention will now be further described with reference to the accompanying drawings. Attached Figure Description

[0026] Figure 1 This is a cross-sectional view of Embodiment 1 of the present invention.

[0027] Figure 2 This is a three-dimensional schematic diagram of Embodiment 1 of the present invention.

[0028] Figure 3 This is a three-dimensional schematic diagram of the output shaft, planar thrust bearing, and roller cage of Embodiment 1 of the present invention.

[0029] Figure 4 for Figure 3 Sectional view after assembly.

[0030] Figure 5 This is a three-dimensional schematic diagram of the speed reduction transmission mechanism of Embodiment 1 of the present invention.

[0031] Figure 6 This is a cross-sectional view of Embodiment 2 of the present invention.

[0032] Figure 7 This is a three-dimensional schematic diagram of Embodiment 2 of the present invention.

[0033] Figure 8 This is a cross-sectional view of Embodiment 3 of the present invention. Detailed Implementation

[0034] Example 1

[0035] like Figures 1-5As shown, an easily assembled, high-load-bearing cycloidal reducer includes a body 1, a rear cover 2 connected to the body 1, an eccentric shaft 3 with an eccentric structure, a drive disk 4 and an output shaft 5 disposed within the body 1. The output shaft 5 has an output disk 51 arranged parallel to the drive disk 4 and the rear cover 2. The drive disk 4 is disposed between the output disk 51 and the rear cover 2. The eccentric shaft 3 is inserted between the rear cover 2 and the output shaft 5, and its eccentric portion 31 is rotatably mounted on the center portion of the drive disk 4 to drive the drive disk 4 to rotate eccentrically. A reduction transmission mechanism is provided between the drive disk 4, the rear cover 1, and the output disk 51. The drive disk 4... A reduction gear transmission mechanism drives the output shaft 5 to rotate. An adjusting nut 6, threadedly connected to the end of the machine body 1 away from the rear cover 2, is provided. A roller retainer 7 is provided on the outer circumference of the output disc 51. Several rollers 71, equidistantly arranged around the roller retainer 7, are mounted within the roller retainer 7 and roll freely. An annular groove 52 is provided on the outer circumference of the output disc 51 to accommodate the rollers 71. One end of each roller 71 abuts against the annular groove 52, and the other end abuts against the inner wall of the machine body 1. A rear cover-less cylindrical roller bearing 21 is provided between the eccentric shaft 3 and the rear cover 2, and an inner output bearing 5 is provided between the eccentric shaft 3 and the output shaft 5. 3. A driving cylindrical roller bearing 41 without an outer ring is provided between the drive disc 4 and the drive disc 1. The inner ring of the cylindrical roller bearing 21 without an outer ring is fitted on the eccentric shaft 3, and the rollers 211 of the rear cover abut against the inner wall of the rear cover 1. The inner ring of the driving cylindrical roller bearing 41 without an outer ring is fitted on the eccentric shaft 3, and the driving rollers 411 abut against the inner wall of the drive disc 4. A guide ring platform 11 is provided on the inner wall of the machine body 1. The inner diameter of the guide ring platform 11 is smaller than the inner diameter of the machine body 1. The guide ring platform 11 is located at one end near the drive disc 4, and an inclined guide slide 12 is provided at the end connected to the inner wall of the machine body 1. When the drive disc 4 is linked with the output shaft 5 through the reduction transmission mechanism... The roller 71 abuts against the guide ring platform 11. A spacer ring 32 is fitted around the eccentric shaft 3. The spacer ring 32 is positioned between the inner output bearing 53 and the driving cylindrical roller bearing 41 without an outer ring. One end of the spacer ring 53 abuts against the inner output bearing 53, and the other end abuts against the inner ring of the driving cylindrical roller bearing 41 without an outer ring. A planar thrust bearing 8 is provided between the output disc 51 and the adjusting nut 6. Planar washers 81 at both ends of the planar thrust bearing 8 abut against the outer surfaces of the output disc 51 and the adjusting nut 6, respectively. A skeleton oil seal 61 is provided between the output shaft 5 and the adjusting nut 6. An end cap oil seal 54 is provided at the end of the output shaft 5 near the rear cover 2.The reduction transmission mechanism includes a first-stage central wheel cycloidal groove 22 formed by an inward cycloidal curve along the circumference of the rear cover 2 facing the drive disk 4; a second-stage central wheel cycloidal groove 55 formed by an inward cycloidal curve along the circumference of the output disk 51 facing the drive disk 4; a first-stage planetary gear cycloidal groove 42 formed by an outward cycloidal curve along the circumference of the drive disk 4 facing the rear cover 2; and a second-stage planetary gear cycloidal groove 43 formed by an outward cycloidal curve along the circumference of the drive disk 4 facing the output disk 51. A first rolling ball 9 is provided between the cover 2 and the drive disk 4. The first rolling ball 9 partially engages with the first-stage central wheel cycloidal groove 22 of the rear cover 2 and partially engages with the first-stage planetary gear cycloidal groove 42 of the drive disk 4. A second rolling ball 92 is provided between the output disk 51 and the drive disk 4. The second rolling ball 92 partially engages with the second-stage central wheel cycloidal groove 55 of the output disk 51 and partially engages with the second-stage planetary gear cycloidal groove 43 of the drive disk. The eccentric shaft 3 drives the drive disk 4 to rotate eccentrically, and the output shaft 5 rotates in conjunction with the first rolling ball 9 and the second rolling ball 91.

[0036] Example 2

[0037] like Figures 6-7 As shown, in this embodiment, a disc spring 62 is provided between the adjusting nut 6 and the planar thrust bearing 8. There are two disc springs 62, and they abut against the end faces of the adjusting nut 6 and the planar thrust bearing 8 respectively through a composite combination, so as to realize adaptive gap adjustment.

[0038] Example 3

[0039] In this embodiment, a disc spring 62 is provided between the planar thrust bearing 8 and the output disk 51. There are two disc springs 62, and they are combined to abut against the end faces of the planar thrust bearing 8 and the output disk 51 respectively to achieve adaptive gap adjustment.

Claims

1. A cycloidal decelerator with easy assembly and high load capacity, comprising a body, a rear cover connected to the body, an eccentric shaft with an eccentric structure, a drive disk and an output shaft disposed within the body, wherein the output shaft is provided with an output disk arranged parallel to the drive disk and the rear cover, the drive disk is disposed between the output disk and the rear cover, the eccentric shaft is inserted between the rear cover and the output shaft, and its eccentric portion is rotatably mounted on the central portion of the drive disk to drive the drive disk to rotate eccentrically, a speed reduction transmission mechanism is provided between the drive disk, the rear cover and the output disk, the drive disk drives the output shaft to rotate through the speed reduction transmission mechanism, and an adjusting nut threadedly connected to the body is provided at the end of the body away from the rear cover, characterized in that: The output disc has a roller cage on its outer circumference, and a plurality of rollers are arranged around the roller cage. The rollers are installed in the roller cage and roll freely. The output disc has an annular groove on its outer circumference for accommodating the rollers. One end of the roller abuts against the annular groove, and the other end abuts against the inner wall of the machine body. A cylindrical roller bearing without an outer ring is provided between the eccentric shaft and the rear cover, an inner output bearing is provided between the eccentric shaft and the output shaft, and a cylindrical roller bearing without an outer ring is provided between the eccentric shaft and the drive disc. The inner ring of the cylindrical roller bearing without an outer ring is fitted on the eccentric shaft, and its rear cover rollers abut against the inner wall of the rear cover. The inner ring of the cylindrical roller bearing without an outer ring is fitted on the eccentric shaft, and its drive rollers abut against the inner wall of the drive disc. A planar thrust bearing is provided between the output disc and the adjusting nut. The planar washers at both ends of the planar thrust bearing abut against the outer surfaces of the output disc and the adjusting nut, respectively.

2. The easily assembled, high-load-bearing cycloidal decelerator according to claim 1 can be further configured as follows: the inner wall of the machine body is provided with a guide ring platform, the inner diameter of the guide ring platform is smaller than the inner diameter of the machine body, the guide ring platform is located at one end near the drive disk, and the end connected to the inner wall of the machine body is provided with an inclined guide slide, when the drive disk is linked with the output shaft through the deceleration transmission mechanism, the roller abuts against the guide ring platform.

3. The easily assembled, high-load-bearing cycloidal decelerator according to claim 1 can be further configured as follows: a spacer ring is provided on the outer sleeve of the eccentric shaft, the spacer ring is disposed between the inner output bearing and the driving cylindrical roller bearing without an outer ring, one end of the spacer ring abuts against the inner output bearing, and the other end abuts against the inner ring of the driving cylindrical roller bearing without an outer ring.

4. The easily assembled, high-load-bearing cycloidal decelerator according to claim 1 can be further configured such that: a skeleton oil seal is provided between the output shaft and the adjusting nut.

5. The easily assembled, high-load-bearing cycloidal decelerator according to claim 1 can be further configured such that: an end cap oil seal is provided at one end of the output shaft near the rear cover.

6. The easily assembled, high-load-bearing cycloidal decelerator according to claim 1 can be further configured as follows: the deceleration transmission mechanism includes a first-stage central wheel cycloidal groove formed by an inner cycloidal curve arranged along the circumference of the rear cover on the surface facing the drive disk, a second-stage central wheel cycloidal groove formed by an inner cycloidal curve arranged along the circumference of the output disk on the surface facing the drive disk, a first-stage planetary gear cycloidal groove formed by an outer cycloidal curve arranged along the circumference of the drive disk on the surface facing the rear cover, and a cycloidal groove formed by an outer cycloidal curve arranged along the circumference of the drive disk on the surface facing the output disk. The second-stage planetary gear cycloidal groove is formed by the epicycloidal curve. A first rolling ball is provided between the rear cover and the drive disk. The first ball partially cooperates with the first-stage central gear cycloidal groove of the rear cover and partially cooperates with the first-stage planetary gear cycloidal groove of the drive disk. A second rolling ball is provided between the output disk and the drive disk. The second ball partially cooperates with the second-stage central gear cycloidal groove of the output disk and partially cooperates with the second-stage planetary gear cycloidal groove of the drive disk. The eccentric shaft drives the drive disk to rotate eccentrically, and the output shaft rotates in conjunction with the first and second balls.

7. The easily assembled, high-load-bearing cycloidal decelerator according to claim 1 may be further configured as follows: an elastic element is provided between the adjusting nut and the planar thrust bearing and or between the planar thrust bearing and the output disc, and the elastic element abuts against the adjusting nuts and the planar thrust bearing and or the planar thrust bearing and the output disc on both sides respectively.

8. The easily assembled, high-load-bearing cycloidal deceleration device according to claim 7 can be further configured such that: the number of elastic elements is not less than 2, and the elastic elements are combined in a composite manner.

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