Bidirectional clutch one-way transmission micro motor speed reducer

Abstract

The present invention provides a bidirectional clutch unidirectional transmission micromotor reduction device, comprising a bottom plate, a small side plate, a motor, and a worm, wherein a turbine is installed between the bottom plate and the small side plate; at least two notches are arranged on the inner circumference of the turbine; a flange tray with an axial hole is installed in the turbine, and ratchet shaft pins are respectively arranged on both sides of the axial hole of the flange tray, and a first ratchet and a second ratchet are respectively arranged on the two ratchet shaft pins; a manual operating shaft is installed at the axial hole of the flange tray, and a T-shaped plate is installed at the bottom of the manual operating shaft for disengaging the first ratchet and the second ratchet from the notch; the flange tray is matched and connected with a mechanism main shaft. The bidirectional clutch unidirectional transmission micromotor reduction device can solve the problems of low life and low reliability of the switch mechanism through the above structure.

Description

Technical Field

[0001] The invention relates to a deceleration device, in particular to a bidirectional clutch unidirectional transmission micro motor deceleration device. Background Art

[0002] Nowadays, the motor reducer used in 12KV gas-filled switchgear in the power supply and distribution industry must have manual and electric functions, forward and reverse rotation, and the electric and manual functions must be operated independently. Only one form can be selected at a time, and the two are not linked to each other.

[0003] The commonly used 12KV SF6 gas insulated switchgear motor reducer has some problems to a greater or lesser extent:

[0004] 1. The opening and closing of the switch are not in place due to angle problems;

[0005] 2. The flange plate in the clutch system lacks a degree of freedom control point, causing problems such as jamming and high operating force;

[0006] 3. The switch mechanism has a short life and low reliability.

[0007] Therefore, it is necessary to design a new two-way clutch one-way transmission micro-motor reduction device to overcome the above problems. Summary of the invention

[0008] The purpose of the present invention is to overcome the defects of the prior art and provide a bidirectional clutch unidirectional transmission micro motor reduction device, which can solve the problems of short life and low reliability of the switch mechanism.

[0009] The present invention is achieved in that:

[0010] The present invention provides a bidirectional clutch unidirectional transmission micro motor speed reducer, comprising a bottom plate, a small side plate, a motor, and a worm, wherein a worm wheel is installed between the bottom plate and the small side plate, the motor is connected to the bottom plate and the small side plate, the motor is connected to the worm, and the worm is drivingly connected to the worm wheel;

[0011] At least two notches are provided on the inner circumference of the worm wheel;

[0012] A flange plate with an axial hole is installed in the worm wheel, and pawl shaft pins are respectively arranged on both sides of the axial hole of the flange plate, and a first pawl and a second pawl are respectively arranged on the two pawl shaft pins, and the first pawl and the second pawl are used to engage with the notch; a vertical pin is arranged at the middle of the two pawl shaft pins, and a spring is installed on the vertical pin, and the two ends of the spring are respectively connected to the first pawl and the second pawl;

[0013] A manual operating shaft is installed at the shaft hole of the flange tray, and a T-shaped plate is installed at the bottom of the manual operating shaft, the plane where the T-shaped plate is located is parallel to the plane where the flange tray is located, and the T-shaped plate is arranged corresponding to the first pawl and the second pawl, and is used to disengage the first pawl and the second pawl from the notch;

[0014] The flange tray is matched and connected with a mechanism main shaft;

[0015] Wherein, the worm gear, the flange plate, the manual operating shaft and the mechanism main shaft are all coaxially arranged.

[0016] Furthermore, three notches are arranged at equal intervals on the inner circumference of the worm wheel.

[0017] Furthermore, copper sleeves are provided at the positions where the flange tray is connected to the bottom plate and the small side plate.

[0018] Furthermore, an open slot is provided at the bottom of the manual operating shaft, and the T-shaped plate includes an arc portion and a vertical portion connected to the middle portion of the arc portion, and the vertical portion passes through the open slot and is fixed to the manual operating shaft by screws.

[0019] Furthermore, the axis angle between the two ratchet pins and the flange plate is 140°-180°.

[0020] Furthermore, the axis angle between the two ratchet pins and the flange plate is 150°.

[0021] Furthermore, the first pawl and the second pawl are symmetrically arranged, and both are provided with pawl protrusions, and the pawl protrusions match with the notch.

[0022] Furthermore, the motor is connected to the worm via a coupling, and worm bearings are arranged on both sides of the worm.

[0023] The present invention has the following beneficial effects:

[0024] The bidirectional clutch unidirectional transmission micromotor reduction device realizes manual operation and electric operation by setting the structure of the first pawl, the second pawl and the T-shaped plate. The structure of the pawl and the notch can provide a freedom control point for the flange tray, which can effectively solve the problems of sticking and large operating force, and can solve the problem of inadequate opening and closing of the switch, thereby indirectly solving the problems of low life and low reliability of the switch mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0026] Figure 1 A front view of a bidirectional clutch unidirectional transmission micro-motor reduction device provided by an embodiment of the present invention;

[0027] Figure 2 A side view of a bidirectional clutch unidirectional transmission micro-motor reduction device provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of a bidirectional clutch and one-way transmission micro-motor speed reducer when a T-shaped plate is manually operated counterclockwise according to an embodiment of the present invention;

[0029] Figure 4 for Figure 3 A schematic diagram from another perspective;

[0030] Figure 5 An assembly diagram of a manual operating shaft and a T-shaped plate provided in an embodiment of the present invention;

[0031] Figure 6 for Figure 5 Schematic diagram from another perspective. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] like Figures 1 to 6 The present invention provides a bidirectional clutch unidirectional transmission micro motor reduction device, comprising a bottom plate 11, a small side plate 9, a motor 1, and a worm 2. A worm wheel 8 is installed between the bottom plate 11 and the small side plate 9. The motor 1 is connected to the bottom plate 11 and the small side plate 9. The motor 1 is connected to the worm 2, and the worm 2 is drivingly connected to the worm wheel 8. Furthermore, the motor 1 is connected to the worm 2 through a coupling 14, and worm bearings 15 are provided on both sides of the worm 2.

[0034] At least two notches 81 are arranged on the inner circumference of the worm wheel 8 . In the preferred embodiment, three notches 81 are arranged on the inner circumference of the worm wheel 8 at equal intervals.

[0035] like Figures 1 to 6 A flange plate 10 with an axial hole is installed in the worm wheel 8, and a pawl shaft pin 16 is respectively provided on both sides of the axial hole of the flange plate 10, and a first pawl 61 and a second pawl 62 are respectively provided on the two pawl shaft pins 16, and the first pawl 61 and the second pawl 62 are used to engage with the notch 81; further, the first pawl 61 and the second pawl 62 are symmetrically arranged, and both are provided with a pawl protrusion (illustrated, not numbered), and the pawl protrusion cooperates with the notch 81.

[0036] A vertical pin 13 is disposed between the two ratchet shaft pins 16 , and a spring 12 is mounted on the vertical pin 13 . Two ends of the spring 12 are respectively connected to the first ratchet 61 and the second ratchet 62 .

[0037] like Figures 1 to 6 A manual operating shaft 7 is installed at the axial hole of the flange tray 10, and a T-shaped plate 5 is installed at the bottom of the manual operating shaft 7. The plane where the T-shaped plate 5 is located is parallel to the plane where the flange tray 10 is located. The T-shaped plate 5 is arranged corresponding to the first pawl 61 and the second pawl 62, and is used to disengage the first pawl 61 and the second pawl 62 from the notch 81.

[0038] The flange tray 10 is connected to a mechanism main shaft 3, and a bearing sleeve 4 is provided at the position where the mechanism main shaft 3 is connected to the base plate 11; wherein the worm gear 8, the flange tray 10, the manual operating shaft 7, and the mechanism main shaft 3 are all coaxially arranged.

[0039] Furthermore, copper sleeves 17 are provided at the positions where the flange tray 10 is connected to the bottom plate 11 and the small side plate 9. The copper sleeves 17 can stabilize the flange tray 10 and the worm gear 8 and prevent them from coming out of contact.

[0040] Furthermore, an open slot 71 is provided at the bottom of the manual operating shaft 7, and the T-shaped plate 5 includes an arc portion 51 and a vertical portion 52 connected to the middle of the arc portion 51, and the vertical portion 52 passes through the open slot 71 and is fixed to the manual operating shaft 7 by screws.

[0041] Furthermore, the axis center angle between the two ratchet shaft pins 16 and the flange tray 10 is 140°-180°. In this preferred embodiment, the axis center angle between the two ratchet shaft pins 16 and the flange tray 10 is 150°.

[0042] When operating manually:

[0043] Use a manual operation tool to pull the manual operation shaft 7, and the manual operation shaft 7 will drive the T-shaped plate 5 at its bottom to rotate. When the manual operation shaft 7 is rotated by the operating rod, the T-shaped plate 5 rotates N° at the same time, and drives the flange tray 10 to rotate. The T-shaped plate 5 pushes the first pawl 61 and the second pawl 62 at the same time, and the pawl protrusions are lifted and disengaged from the notch 81 inside the worm gear, and the worm gear does not move; while the first pawl 61 is in a sliding position, the worm gear is disengaged and does not move, and the manual operation shaft 7 only drives the flange tray 10 to rotate, and the front end of the flange tray 10 and the connecting end of the mechanism main shaft 3 have matching straight lines, so the rotation of the manual operation shaft 7 ultimately drives the mechanism main shaft 3 to rotate N° to complete the manual operation.

[0044] When operated electrically:

[0045] The motor 1 drives the worm 2 through the coupling 14, and the worm 2 rotates and drives the worm wheel 8. The worm wheel rotates at a low speed through the reduction relationship between the worm wheel and the worm 2. The inner side of the worm wheel is provided with three notches 81 or two notches 81. In this design, the three notches 81 are distributed at equal distances. The flange tray 10 is provided with a first pawl 61 and a second pawl 62, and one of the pawl protrusions falls into the notch 81 on the inner side of the worm wheel. The flange tray 10 is welded with two pawl shaft pins 16 on both sides of the central shaft hole. The angle between the two pawl shaft pins 16 and the axis of the flange tray 10 is 140° to 180°, and the best design is 150°. The first pawl 61 and the second pawl 62 are respectively installed on the two (left and right) pawl shaft pins 16. One of the pawl protrusions falls into the notch 81 of the inner diameter of the worm wheel; the other pawl is in a sliding state. The rotation of the worm gear drives the first pawl 61 and the second pawl 62 to move. The first pawl 61 and the second pawl 62 drive the flange plate 10 to rotate through the pawl shaft pin 16. The flange plate 10 is connected to the mechanism main shaft 3 through straight lines, thereby driving the mechanism main shaft 3 to rotate to complete closing or opening the switch.

[0046] To sum up, the bidirectional clutch unidirectional transmission micromotor 1 reduction device realizes manual operation and electric operation by setting the structure of the first pawl 61, the second pawl 62 and the T-shaped plate 5. The structure of the pawl and the notch 81 can provide a freedom control point for the flange tray 10, which can effectively solve the problems of sticking and large operating force, and can solve the problem of inadequate opening and closing of the switch, thereby indirectly solving the problems of low life and low reliability of the switch mechanism.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A two-way clutch one-way transmission micro motor speed reducer, characterized in that: It includes a bottom plate, a small side plate, a motor, and a worm, wherein a worm wheel is installed between the bottom plate and the small side plate, the motor is connected to the bottom plate and the small side plate, the motor is connected to the worm, and the worm is drivingly connected to the worm wheel; At least two notches are provided on the inner circumference of the worm wheel; A flange plate with an axial hole is installed in the worm wheel, and pawl shaft pins are respectively arranged on both sides of the axial hole of the flange plate, and a first pawl and a second pawl are respectively arranged on the two pawl shaft pins, and the first pawl and the second pawl are used to engage with the notch; a vertical pin is arranged at the middle of the two pawl shaft pins, and a spring is installed on the vertical pin, and the two ends of the spring are respectively connected to the first pawl and the second pawl; A manual operating shaft is installed at the shaft hole of the flange tray, and a T-shaped plate is installed at the bottom of the manual operating shaft, the plane where the T-shaped plate is located is parallel to the plane where the flange tray is located, and the T-shaped plate is arranged corresponding to the first pawl and the second pawl, and is used to disengage the first pawl and the second pawl from the notch; The flange tray is matched and connected with a mechanism main shaft; Wherein, the worm gear, the flange plate, the manual operating shaft, and the mechanism main shaft are all coaxially arranged; The bottom of the manual operating shaft is provided with an open slot, the T-shaped plate comprises an arc-shaped portion and a vertical portion connected to the middle of the arc-shaped portion, the vertical portion passes through the open slot and is connected and fixed to the manual operating shaft by screws; The first pawl and the second pawl are symmetrically arranged and both are provided with pawl protrusions, and the pawl protrusions match the notch.

2. The two-way clutch one-way transmission micro-motor speed reducer as claimed in claim 1, characterized in that: The inner circumference of the worm wheel is provided with three notches at equal intervals.

3. The two-way clutch one-way transmission micro-motor speed reducer as claimed in claim 1, characterized in that: Copper sleeves are provided at the positions where the flange tray is connected to the bottom plate and the small side plate.

4. The two-way clutch one-way transmission micro-motor speed reducer as claimed in claim 1, characterized in that: The axis angle between the two ratchet pins and the flange tray is 140°-180°.

5. The two-way clutch one-way transmission micro-motor speed reducer as claimed in claim 1 or 4, characterized in that: The axis angle between the two ratchet pins and the flange tray is 150°.

6. The two-way clutch one-way transmission micro-motor speed reducer as claimed in claim 1, characterized in that: The motor is connected to the worm through a coupling, and worm bearings are arranged on both sides of the worm.

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