Speed reducer and buffer structure

Abstract

The utility model provides a speed reducer and a buffer structure, which comprise a speed reducer, the left side and the right side of the speed reducer are respectively in key connection with an elastic coupling with buffer performance, and the outer side of a bearing is provided with a buffer ring for buffering and fixing. Compared with the prior art, the bearing has the advantages that the buffering ring, the first magnetic sheets and the second magnetic sheets are arranged, the first magnetic sheets and the second magnetic sheets are distributed in pairs, the multiple sets of elastic modules are matched, vibration energy transmitted by the bearing can be weakened and absorbed, the vibration energy can be reduced, the vibration energy can be reduced, and the service life of the bearing is prolonged. The inner portion of the speed reducer is provided with a certain buffering structure, operation of the speed reducer is more stable, the elastic coupler is arranged, the torsional vibration performance of transmission is fully tuned through different torsional rigidities and damping coefficients, and the transmission efficiency is improved. And the speed reducer is helped to adapt to sudden loads generated in the processes of starting, braking and the like of a motor.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of speed reducer, especially relates to a speed reducer and buffer structure. BACKGROUND

[0002] Many conventional speed reducers fail to effectively absorb and buffer the impact when facing instantaneous impact load, resulting in severe vibration of the transmission system, and further causing rapid wear of the gear, bearing and other components. The main reason for such defects is that the speed reducer structure design lacks sufficient elasticity and the application of shock absorbing materials, which cannot adapt to the sudden load generated during processes such as motor starting and braking.

[0003] The conventional coping methods include increasing the rigidity of the speed reducer and using additional buffer devices such as spring buffers or rubber pads, trying to reduce the damage caused by impact by improving mechanical strength or external soft contact materials. However, the disadvantages of these methods are that the increased rigidity improves the load bearing capacity, but also increases the brittleness of the system, and once the load limit is exceeded, the risk of structural damage increases significantly; while using external buffer devices can absorb impact to a certain extent, it may also cause response delay, affecting the dynamic performance of the speed reducer. Therefore, we hope to design a speed reducer with a new structure to solve this problem. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a speed reducer and buffer structure to solve the problems raised in the background art.

[0005] The utility model realizes the following technical scheme: a speed reducer and buffer structure, comprising: a speed reducer, the left side and the right side of the speed reducer are respectively keyed to one elastic coupling with buffering performance, the inside front side and the rear side of the speed reducer are respectively rotatably installed with one rotating shaft one and rotating shaft two through bearings, the outside of the bearing is installed with a buffer ring for buffering and fixing;

[0006] The elastic coupling comprises a shaft head one and a shaft head two, and a buffer pad for power transmission and buffering is installed between the shaft head one and the shaft head two.

[0007] As a preferred embodiment, the left side and the right side of the inner wall of the buffer ring are respectively provided with a ring-shaped structure of a retainer, and the inner wall of the buffer ring is radially outwardly recessed to form a ring-shaped clamping groove. The buffer ring can reduce the motion resonance effect of the rotating shaft one and the rotating shaft two, and make the entire speed reducer have a more stable running effect.

[0008] As a preferred implementation, the width of the annular clamping groove (132) matches the width of the bearing on the mounting shaft (110) and the shaft (120), and the outer wall of the buffer ring (130) is internally provided with an inner cavity (133).

[0009] As a preferred implementation, the inner cavity is internally provided with a plurality of elastic modules arranged in an arc structure, each of which is provided with a plurality of Z-shaped elastic pieces that are uniformly distributed.

[0010] As a preferred implementation, the inner wall of the inner cavity is fixed with a plurality of annular magnetic pieces (one) that are equally spaced, and the outer wall of the inner cavity is fixed with a plurality of annular magnetic pieces (two) that are equally spaced.

[0011] As a preferred implementation, the number and distribution of the magnetic pieces (one) match the number and distribution of the magnetic pieces (two), and the distance between each set of magnetic pieces (one) and magnetic pieces (two) is not less than 1cm.

[0012] As a preferred implementation, the magnetic pole of the magnetic piece (one) near the magnetic piece (two) is N, the magnetic pole of the magnetic piece (two) near the magnetic piece (one) is N, and the magnetic piece (one) and the magnetic piece (two) are concentric arc-shaped pieces.

[0013] As a preferred implementation, the buffer pad is formed by stacking a plurality of rubber pads, each of which is fixed inside the shaft head (one) and the shaft head (two) by two locking bolts, and the shaft head (one) and the shaft head (two) are fixed with three buffer pads arranged in an equilateral triangle structure, and the elastic coupling is used to fully tune the torsional vibration performance of the transmission by using different torsional stiffness and damping coefficients.

[0014] After adopting the above technical scheme, the beneficial effects of the present application are as follows: by setting the buffer ring, the pair of magnetic pieces (one) and magnetic pieces (two), and cooperating with the plurality of elastic modules, the vibration energy transmitted by the bearing can be weakened and absorbed, thereby achieving the purpose of buffering the shaft (one) and the shaft (two), and making the reducer have a certain buffering structure, so that it runs more stably.

[0015] The elastic coupling is set, three sets of buffer pads arranged in an equilateral triangle structure are arranged between the shaft head (one) and the shaft head (two), so that the input end and the output end of the reducer have certain damping performance, and different torsional stiffness and damping coefficients are used to fully tune the torsional vibration performance of the transmission, which helps the reducer to adapt to sudden loads generated during processes such as motor starting and braking. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0017] Figure 1 It is a whole structure schematic view of the reducer and the buffer structure of the present application.

[0018] Figure 2 It is a whole structure schematic view of the buffer ring of the reducer and the buffer structure of the present application.

[0019] Figure 3 It is a schematic view of the internal structure of the buffer ring of the reducer and the buffer structure of the present application.

[0020] Figure 4 It is a schematic view of the elastic coupling structure of the reducer and the buffer structure of the present application.

[0021] Figure 5 It is a schematic view of the buffer pad structure of the reducer and the buffer structure of the present application.

[0022] In the figure, 100-reducer, 110-rotating shaft one, 120-rotating shaft two, 130-buffer ring, 131-stop ring, 132-annular clamping groove, 133-internal cavity, 134-spring piece, 135-magnetic piece one, 136-magnetic piece two;

[0023] 200-elastic coupling, 210-shaft head one, 220-buffer pad, 230-locking bolt, 240-shaft head two. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor are within the protection scope of the present application.

[0025] Please refer to Figures 1 to 5The utility model provides a technical scheme: a speed reducer 100 and buffer structure, include: speed reducer 100, the left side, right side of speed reducer 100 is connected with one having the elastic coupling 200 of buffer performance respectively, the inside front side, rear side of speed reducer 100 is rotatably installed one shaft one 110, shaft two 120 through bearing respectively, bearing outside is installed for the buffer ring 130 of fixed buffering,

[0026] Elastic coupling 200 includes shaft head one 210, shaft head two 240, and the buffer pad 220 for power transmission buffering is installed between shaft head one 210 and shaft head two 240.

[0027] Please refer to Figures 1 to 3 The left side, right side of buffer ring 130 inner wall is provided with one annular structure's retainer 131 respectively, and the annular clamping groove 132 is formed to the inner wall of buffer ring 130 radially outwardly concave, the setting of buffer ring 130 can reduce the movement resonance effect of shaft one 110, shaft two 120, so that the whole speed reducer 100 has the effect of more stable operation.

[0028] The width of annular clamping groove 132 is matched with the width of bearing on the installation shaft one 110, shaft two 120, and the outer wall of buffer ring 130 is provided with inner cavity 133.

[0029] The inner cavity 133 is provided with multiple elastic modules of arc structure distribution, each elastic module is provided with multiple Z-shaped structure spring sheets 134, and multiple spring sheets 134 are uniformly distributed.

[0030] Multiple annular structure magnetic sheets one 135 of equidistant distribution are fixed in the inner wall of inner cavity 133, and multiple annular structure magnetic sheets two 136 of equidistant distribution are fixed in the outer wall of inner cavity 133.

[0031] The number and distribution position of magnetic sheet one 135 are matched with the number and distribution position of magnetic sheet two 136, and the spacing between each group of magnetic sheet one 135 and magnetic sheet two 136 is not less than 1cm.

[0032] The magnetic pole of magnetic sheet one 135 close to magnetic sheet two 136 side is N pole, the magnetic pole of magnetic sheet two 136 close to magnetic sheet one 135 side is N pole, and magnetic sheet one 135 and magnetic sheet two 136 are concentric arc sheet structure.

[0033] As the first embodiment of the utility model in actual use, through the bearing outer wall sleeve buffer ring 130 installed on the shaft one 110, the shaft two 120, when the shaft one 110, the shaft two 120 in operation occur certain vibration, and the shaft one 110, the shaft two 120 with the bearing of cooperation and connection will the vibration is transmitted to the buffer ring 130 on the corresponding position, and the vibration energy is transmitted on the buffer ring 130 in radial direction, because the inner cavity 133 inside is provided with multiple elastic module groups that are distributed in arc structure, each elastic module is provided with multiple Z-shaped structure elastic sheet 134, and the number and distribution position of magnetic sheet one 135 are matched with the number and distribution position of magnetic sheet two 136, the magnetic pole of magnetic sheet one 135 close to magnetic sheet two 136 side is N pole, the magnetic pole of magnetic sheet two 136 close to magnetic sheet one 135 side is N pole, the magnetic sheet one 135 and magnetic sheet two 136 that are distributed in pairs, cooperate multiple elastic module groups, can weaken, absorb the vibration energy transmitted by the bearing, and then reach the purpose of buffering the shaft one 110, the shaft two 120, so that the reducer 100 has certain buffer structure, and its operation is more stable.

[0034] Please refer to Figure 1 、 Figures 4 to 5 , the buffer pad 220 is formed by the mutual stacking of multiple rubber pad plates, each buffer pad 220 is fixed inside the shaft head one 210 and the shaft head two 240 through two locking bolts 230, and three buffer pads 220 distributed in equilateral triangle structure are fixed between the shaft head one 210 and the shaft head two 240, the elastic coupling 200 is provided to fully tune the torsional vibration performance of the transmission by using different torsional stiffness and damping coefficients.

[0035] As the second embodiment of the utility model, based on the above first embodiment, the elastic coupling 200 is provided, three groups of buffer pads 220 distributed in equilateral triangle structure are arranged between the shaft head one 210 and the shaft head two 240, so that the input end and the output end of the reducer 100 have certain exchange performance, the torsional vibration performance of the transmission is fully tuned by using different torsional stiffness and damping coefficients, which helps the reducer 100 to adapt to the sudden load generated in the process such as motor starting, braking, etc.

[0036] The above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A speed reducer and a buffer structure, comprising: The speed reducer (100) is characterized in that a flexible coupling (200) with buffering performance is keyed to the left and right sides of the speed reducer (100), and a rotating shaft one (110) and a rotating shaft two (120) are rotatably installed on the front and rear sides of the speed reducer (100) through bearings, and a buffer ring (130) for buffering and fixing is installed on the outside of the bearing. The flexible coupling (200) includes a shaft head one (210) and a shaft head two (240), and a buffer pad (220) for power transmission buffer is installed between the shaft head one (210) and the shaft head two (240). The buffer pad (220) is formed by stacking multiple rubber pads. Each buffer pad (220) is fixed inside between shaft head one (210) and shaft head two (240) by two locking bolts (230). Three buffer pads (220) arranged in an equilateral triangle structure are fixed between shaft head one (210) and shaft head two (240).

2. The speed reducer (100) and buffer structure as described in claim 1, characterized in that: The buffer ring (130) has a retaining ring (131) with an annular structure on the left and right sides of its inner wall, and the inner wall of the buffer ring (130) is radially recessed to form an annular groove (132).

3. The speed reducer (100) and buffer structure as described in claim 2, characterized in that: The width of the annular groove (132) matches the width of the bearings on the first rotating shaft (110) and the second rotating shaft (120), and the buffer ring (130) has an inner cavity (133) inside its outer wall.

4. The speed reducer (100) and buffer structure as described in claim 3, characterized in that: The inner cavity (133) is provided with multiple sets of elastic modules distributed in an arc shape. Each elastic module is provided with multiple Z-shaped elastic pieces (134), and the multiple elastic pieces (134) are evenly distributed.

5. The speed reducer (100) and buffer structure as described in claim 4, characterized in that: The inner wall of the inner cavity (133) is fixed with a plurality of magnetic sheets (135) arranged in a ring structure and distributed at equal intervals, and the outer wall of the inner cavity (133) is fixed with a plurality of magnetic sheets (136) arranged in a ring structure and distributed at equal intervals.

6. The speed reducer (100) and buffer structure as described in claim 5, characterized in that: The number and distribution of magnetic sheet one (135) are matched with the number and distribution of magnetic sheet two (136), and the distance between each group of magnetic sheet one (135) and magnetic sheet two (136) is not less than 1cm.

7. The speed reducer (100) and buffer structure as described in claim 6, characterized in that: The magnetic pole of the side of magnetic sheet one (135) closest to magnetic sheet two (136) is the N pole, and the magnetic pole of the side of magnetic sheet two (136) closest to magnetic sheet one (135) is the N pole. Both magnetic sheet one (135) and magnetic sheet two (136) are concentric arc-shaped sheet structures.

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