CN209654536U - Cycloidal type speed reducer anti-drop device - Google Patents

Abstract

A kind of cycloidal type speed reducer anti-drop device, the cycloidal type speed reducer also includes shell, input shaft, a pair of of Cycloidal Wheel, a pair of of driver plate and output, the anti-drop device includes end cap and locating part, the end cap is fixed on the output, and there is inner face, outer end face, by the recessed screw hole of the inner face, and it is set to the groove between the screw hole and the outer end face, the internal diameter of the groove is greater than the internal diameter of the screw hole, the locating part is connected to the input shaft, and there is cervical part of esophagus and thread segment, the thread segment along the axis and can be threaded through the screw hole and be set in the groove, and the cervical part of esophagus is made to correspond to the screw hole.The screw hole is threaded through using the thread segment of the locating part and is set in the groove, and the output can be made not fall off easily from the input shaft.

Description

Cycloidal type speed reducer anti-drop device

Technical field

The utility model relates to a kind of speed reducers, more particularly to a kind of cycloidal type speed reducer anti-drop device.

Background technique

A kind of existing deceleration device (prior art that JP speciallys permit No. 5234463 Patent Case) discloses speed reducer and has one A input shaft, two can be generated in the external gear, one that eccentric swing rotates engage with the external gear by the input shaft stopper Gear, first rest pad for being configured at the external gear axial sides, second rest pad, and pass through an eccentric body shaft It is through at the external gear, and the internal gear and the relative rotation of the external gear is made to be transmitted to first rest pad, this second Supporting block.

In normal state, first rest pad, the second rest pad will not fall off from shell, but when be used for interlocking this One rest pad, second rest pad the transmission tip or bolt fracture when, there will be the doubts that the first rest pad falls off from the shell.

In order to solve the problem above-mentioned, it is the periphery in first rest pad equipped with a flange, separately adds an end cap It suppresses in the flange, the problem of to prevent first rest pad from falling off.

This deceleration device can cause overall volume to increase because of the setting of the end cap, and overall weight also will increase.

Summary of the invention

It can prevent component from falling off using simple structure and to generate volume small-sized the purpose of this utility model is to provide a kind of Change the cycloidal type speed reducer anti-drop device of effect.

The cycloidal type speed reducer anti-drop device of the utility model, the cycloidal type speed reducer also include shell, are located in The enclosure interior and the input shaft extended along axis, a pair of Cycloidal Wheel by the input eccentric shaft stopper, a pair are by described The driver plate that Cycloidal Wheel interlocks, and it is linked in the driver plate and to the output interlocked by the Cycloidal Wheel, the anticreep Dropping control device includes end cap and locating part, and the end cap is fixed on the output along the axis, and has and intersect at the axis The inner face of line, along the axis in contrast to the outer end face of the inner face, by the recessed screw hole of the inner face, and setting Groove between the screw hole and the outer end face, the internal diameter of the groove are greater than the internal diameter of the screw hole, the locating part It is connected to the input shaft along the axis, and there is the cervical part of esophagus for being connected to the input shaft, and in contrast to the input shaft And it is connected to the thread segment of the cervical part of esophagus other side, the thread segment is relative to the cervical part of esophagus in expansion shape, the thread segment energy It along the axis and is threaded through the screw hole and is set in the groove, and the cervical part of esophagus is made to correspond to the screw hole.

The cycloidal type speed reducer anti-drop device of the utility model, the groove of the end cap correspond to the groove width of the axis Degree, greater than the first length that the thread segment of the locating part corresponds to the axis.

The cycloidal type speed reducer anti-drop device of the utility model, the groove of the end cap is by being connected in the screw hole One slot side, along the axis and first slot side spaced second slot side, and intersection is connected to described the Circumferential surface between one slot side and second slot side defines jointly, the thread segment of the locating part have relative to First slot side and the linking first side in the cervical part of esophagus, second side along the axis in contrast to the first side Face, and the external screw thread being set between the first side and the second side, the first side and first slot The first spacing is generated between side, and the second spacing, the circumferential surface are generated between the second side and second slot side The czermak space for surrounding the axis is generated between the external screw thread.

The diameter of the cycloidal type speed reducer anti-drop device of the utility model, the cervical part of esophagus of the locating part is less than the end cap Screw hole internal diameter.

The outer diameter of the cycloidal type speed reducer anti-drop device of the utility model, the thread segment of the locating part is greater than the neck The diameter of section.

The cycloidal type speed reducer anti-drop device of the utility model, the input shaft have the side for cervical part of esophagus connection Face, the second length between the side end face and the first side are greater than between the inner face and first slot side Third length.

The cycloidal type speed reducer anti-drop device of the utility model, between the side end face of the input shaft and the inner face Generate third spacing.

The utility model has the beneficial effects that: being threaded through the screw hole using the thread segment and being set to described recessed In slot, and the cervical part of esophagus is made to correspond to the setting of the screw hole, even if part is damaged, the end cap and the locating part will not Delamination, to ensure that the output can generate limit relative to the shell.

Detailed description of the invention

Fig. 1 is a stereogram exploded view of the utility model cycloidal type speed reducer anti-drop device one embodiment；

Fig. 2 is an assembled sectional view of the embodiment；

Fig. 3 is an incomplete partial enlargement diagram of Fig. 2.

Specific embodiment

The utility model is described in detail with reference to the accompanying drawings and embodiments.

Refering to fig. 1, Fig. 2 and Fig. 3, one embodiment of the utility model cycloidal type speed reducer anti-drop device 100, the pendulum Wire type speed reducer also includes a shell 1, one and is located in the input shaft 2, one shell 1 inside and extended along an axis L To by the eccentric stopper of the input shaft 2 Cycloidal Wheel 3, a pair of driver plate 4, one interlocked by the Cycloidal Wheel 3 are by the transmission Output 5, the several bearings 6 being installed between the input shaft 2 and the shell 1 that plate 4 is interlocked and interlocked by the Cycloidal Wheel 3, And it several is installed between the Cycloidal Wheel 3 and the driver plate 4, between the output 5 and the shell 1, the driver plate 4 Rolling member 7, which has inner wall 101 caused by the axis L, several inner walls 101 that are installed on Roller 102, the input shaft 2 have a side end face 201 and two eccentric parts 202, and the Cycloidal Wheel 3 respectively has several enclose It is in the perforation 302 being arranged at equal intervals around the teeth portion 301 of axis L setting and several axis L that surround, which has One first flange 501 and a second flange 502, the first flange 501 have several first connecting columns 503, second method Orchid 502 is each passed through with several the second connecting columns 504 with 503 interlocking of the first connecting column, first connecting column 503 The perforation 302, the second flange 502 also have a transverse plane along axis L in contrast to second connecting column 504 505, one is arranged along axis L by the recessed heavy recess portion 506 of the transverse plane 505 and one and is connected to the heavy recess portion 506 Axis hole 507, the first flange 501 and the second flange 502 can smooth rotation and axis using split bearing 6 and the rolling member 7 If being supported between the shell 1 and the input shaft 2.The anti-drop device 100 includes an end cap 10 and a locating part 20.

The end cap 10 is installed in the heavy recess portion 506, and the inner face 11, one of axis L is vertically intersected on one It is a to be set in contrast to outer end face 12, one of the inner face 11 by the recessed screw hole 13 of the inner face 11 and one along axis L The groove 14 being placed between the screw hole 13 and the outer end face 12, the groove 14 is by a linking in the first slot side of the screw hole 13 141, one is connected to along axis L and the 141 spaced second slot side 142 of the first slot side and an intersection Circumferential surface 143 between the first slot side 141 and the second slot side 142 defines jointly, in one of the groove 14 Diameter D1 is greater than an internal diameter D2 of the screw hole 13.The end cap 10 also has several lockholes 15 being set in distance around axis L, The lockhole 15 can be passed through for several screws 8, and the end cap 10 is locked in the second method of the output 5 using the screw 8 On orchid 502.

The locating part 20 is integrally connected to the input shaft 2 along axis L, and has one and be connected to the side end face 201 Cervical part of esophagus 21 and one are in contrast to the input shaft 2 and are connected to the thread segment 22 of 21 other side of cervical part of esophagus, and the thread segment 22 is opposite In the cervical part of esophagus 21 in shape is expanded, which has one relative to the first slot side 141 and linking is in the cervical part of esophagus 21 First side 221, one along axis L in contrast to the second side 222 of the first side 221 and one be set to this External screw thread 223 between one side 221 and the second side 222.One diameter D3 of the cervical part of esophagus 21 is less than the spiral shell of the end cap 10 The internal diameter D2 in hole 13.One outer diameter D 4 of the thread segment 22 is greater than the diameter D3 of the cervical part of esophagus 21.The groove 14 corresponds to axis L A groove width w, greater than the thread segment 22 correspond to axis L a first length l1, the side end face 201 and this first A second length l2 between side 221 is greater than a third length between the inner face 11 and the first slot side 141 l3。

It is pre- for further understandings of effect, application technology means caused by each component cooperation of the utility model, and institute It will be described as follows again the effect of phase reaches, it is believed that when can have deeper into and specific understand to the utility model therefrom.

Again as shown in Figure 2 and Figure 3, when the shell 1, the input shaft 2, the Cycloidal Wheel 3, the biography of the cycloidal type speed reducer When movable plate 4, the output 5, the bearing 6 and 7 overall package of the rolling member are completed, which not yet installs and is positioned at this In second flange 502, at this point, the thread segment 22 of the locating part 20 convexedly stretches in the heavy recess portion 506.

Operator, which can sink the end cap 10 towards this, is inserted in recess portion 506, meanwhile, make the thread segment 22 of the locating part 20 with spiral shell Rotation mode passes through the screw hole 13, until the thread segment 22 stretches in the groove 14, and when the inner face 11 be resisted against this sink it is recessed When 506 bottom of portion, recycle the screw 8 that the end cap 10 is locked in the second flange 502.

When the end cap 10 generates positioning relative to the locating part 20, which is set in the groove 14, the neck Section 21 then corresponds to the screw hole 13, and first spacing is generated between the first side 221 and the first slot side 141 D1 generates a second spacing d2, the circumferential surface 143 and the external screw thread between the second side 222 and the second slot side 142 The czermak space d3 for surrounding axis L is generated between 223.Meanwhile the side end face 201 of the input shaft 2 and the inner face 11 it Between generate a third spacing d4.

That is, the side end face 201 is not contacted with the inner face 11, and there are running clearance, the first side 221 with The first slot side 141 does not contact, and also there are running clearance, which does not contact with the second slot side 142, There are running clearances, which does not also contact with the circumferential surface 143, and also there are running clearances.

In this way, which the eccentric part 202 drives 3 phase of Cycloidal Wheel when the input shaft 2 is rotated by outer power drive When generating cycloidal type turn for the shell 1, the output 5 can be interlocked by the driver plate 4 and generates turn that be reversed and slowing down Dynamic, which will not generate with the input shaft 2 and contact, and will not generate friction or interference.

In normal state, which is limited in the groove 14, but when speed reducer running a period of time, this First connecting column 503 of one flange 501 or second connecting column 504 of the second flange 502, or it is used for interlocking institute When stating the screw of the first connecting column 503 and second connecting column 504 and producing fracture, the end cap 10 is produced using the thread segment 22 Raw position-limiting action can prevent the second flange 502 from falling off from the shell 1.

The utility model is used for using the second flange 502 setting heavy recess portion 506 for the end cap 10 installation positioning, Product can also be made to achieve the purpose that miniaturization, overall weight can also mitigate.

In conclusion the utility model cycloidal type speed reducer anti-drop device, it is easy that overall structure is simple, manufacture assembles, Even if first connecting column 503 of the first flange 501 or second connecting column 504, Huo Zheyong of the second flange 502 When the screw of the first connecting column 503 and second connecting column 504 described in interlocking produces fracture, which will not be light It easily falls off from the input shaft 2, the purpose of this utility model can be reached really.

Claims (7)

1. a kind of cycloidal type speed reducer anti-drop device, the cycloidal type speed reducer also includes shell, is located in the shell Portion and the input shaft extended along axis, a pair of are interlocked a pair of Cycloidal Wheel by the input eccentric shaft stopper by the Cycloidal Wheel Driver plate, and be linked in the driver plate and by the Cycloidal Wheel interlock output, the anti-drop device include end Lid and locating part, it is characterised in that:

The end cap is fixed on the output along the axis, and has and intersect at the inner face of the axis, along the axis Line in contrast to the outer end face of the inner face, by the recessed screw hole of the inner face, and be set to the screw hole and described outer Groove between end face, the internal diameter of the groove are greater than the internal diameter of the screw hole；

The locating part is connected to the input shaft along the axis, and has the cervical part of esophagus for being connected to the input shaft, Yi Jixiang Instead in the input shaft and it is connected to the thread segment of the cervical part of esophagus other side, the thread segment is relative to the cervical part of esophagus in expanding Shape, the thread segment along the axis and can be threaded through the screw hole and be set in the groove, and make the cervical part of esophagus pair Screw hole described in Ying Yu.

2. cycloidal type speed reducer anti-drop device according to claim 1, it is characterised in that: the groove of the end cap is corresponding In the groove width of the axis, greater than the first length that the thread segment of the locating part corresponds to the axis.

3. cycloidal type speed reducer anti-drop device according to claim 2, it is characterised in that: the groove of the end cap is by holding in the mouth It is connected to the first slot side of the screw hole, along the axis and first slot side spaced second slot side, and Intersect the circumferential surface being connected between first slot side and second slot side to define jointly, the locating part Thread segment have relative to first slot side and linking in the first side of the cervical part of esophagus, along the axis in contrast to described The second side of first side, and the external screw thread being set between the first side and the second side, described first The first spacing is generated between side and first slot side, generates second between the second side and second slot side Spacing generates the czermak space for surrounding the axis between the circumferential surface and the external screw thread.

4. cycloidal type speed reducer anti-drop device according to claim 1, it is characterised in that: the cervical part of esophagus of the locating part Diameter is less than the internal diameter of the screw hole of the end cap.

5. cycloidal type speed reducer anti-drop device according to claim 4, it is characterised in that: the thread segment of the locating part Outer diameter be greater than the cervical part of esophagus diameter.

6. cycloidal type speed reducer anti-drop device according to claim 3, it is characterised in that: the input shaft has for institute State the side end face of cervical part of esophagus connection, the second length between the side end face and the first side be greater than the inner face with it is described Third length between first slot side.

7. cycloidal type speed reducer anti-drop device according to claim 6, it is characterised in that: the side end face of the input shaft Third spacing is generated between the inner face.