CN220118583U - Single motor drive gear device - Google Patents
Single motor drive gear device Download PDFInfo
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- CN220118583U CN220118583U CN202320989520.4U CN202320989520U CN220118583U CN 220118583 U CN220118583 U CN 220118583U CN 202320989520 U CN202320989520 U CN 202320989520U CN 220118583 U CN220118583 U CN 220118583U
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- 230000005540 biological transmission Effects 0.000 claims abstract description 26
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- 230000000670 limiting effect Effects 0.000 claims description 26
- 230000033001 locomotion Effects 0.000 claims description 9
- 230000001360 synchronised effect Effects 0.000 claims description 6
- 230000007423 decrease Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 abstract 1
- 238000000429 assembly Methods 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 9
- 238000010586 diagram Methods 0.000 description 5
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- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
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Abstract
The present utility model provides a single motor drive gear device comprising: the power mechanism comprises a forward and reverse rotation motor and an optical axis driven by the forward and reverse rotation motor; the gear assemblies are coaxially arranged on the optical axis; the first gear assembly and the second gear assembly comprise gears which are coaxially arranged with the optical axis, the side wall of each gear is provided with a first accommodating groove, a fixing piece which is coaxially rotated with the optical axis is accommodated in each first accommodating groove, the side wall of each fixing piece is provided with a second accommodating groove, an accommodating cavity is formed between each first accommodating groove and each second accommodating groove, a transmission piece which coaxially rotates with the fixing piece is accommodated in each accommodating cavity, the bottom of each first accommodating groove of each gear is provided with a plurality of positive rotation driving ratchets, each transmission piece is provided with an arc-shaped groove which is matched with each positive rotation driving ratchet, each positive rotation driving ratchet is connected with each arc-shaped groove, and the structure is stable and can bear larger stress, so that the service life of the device is shortened due to the damage of parts.
Description
Technical Field
The utility model relates to a single motor driving gear device which is applied to the field of mechanical transmission.
Background
Ratchet is defined as a gear having a rigid toothed or friction surface on the outer or inner rim, which is an important component of a ratchet mechanism. The ratchet wheel is pushed by a pawl to perform stepping movement, and the meshing movement is characterized in that the ratchet wheel can only rotate in one direction and cannot be reversed.
The existing single motor driving gear device controls a plurality of ratchet wheels on an optical axis to move in different directions through one motor, when the motor rotates positively, one or more ratchet wheels move, and other ratchet wheels idle, and when the motor rotates reversely, the device can control different mechanisms to move only through one motor, so that the aim of saving energy is fulfilled. However, the ratchet wheel is pushed by the pawl to perform stepping motion, and the pawl is arranged in the ratchet wheel mechanism through the pin shaft, as shown in fig. 1, because the motor of the device needs to frequently drive the ratchet wheel mechanism to perform forward and reverse rotation to realize the motion of different mechanisms, when the pawl reverses, the ratchet teeth of the ratchet wheel are clamped with the pawl to realize the motion of the ratchet wheel, at the moment, the pawl receives reverse acting force of the ratchet teeth, if the mechanism is more complex and heavier, the reverse acting force of the pawl is larger, the pin shaft is used as a small-diameter part, and in the long-term use process, the pin shaft is possibly not broken due to the stress, so that the service life of the device is influenced.
Disclosure of Invention
The utility model provides a single motor driving gear device which can effectively solve the problems.
The utility model is realized in the following way:
a single motor drive gear arrangement comprising:
the power mechanism comprises a forward and reverse rotation motor and an optical axis driven by the forward and reverse rotation motor;
the gear mechanisms are coaxially arranged on the optical axis;
the gear mechanism comprises a gear which rotates in a non-synchronous manner with the optical axis, a first accommodating groove is formed in the side wall of the gear, a fixing piece which rotates in a synchronous manner with the optical axis in a coaxial manner is arranged in the first accommodating groove, a second accommodating groove is formed in the side wall of the fixing piece, an accommodating cavity is formed between the first accommodating groove and the second accommodating groove, a transmission piece which rotates in a synchronous manner with the fixing piece in a coaxial manner is arranged in the accommodating cavity, a plurality of positive rotation driving ratchets are arranged at the bottom of the first accommodating groove, arc-shaped grooves matched with the positive rotation driving ratchets are formed in the transmission piece, and the positive rotation driving ratchets are connected with the arc-shaped grooves.
As a further improvement, the positive rotation driving ratchet comprises a tooth top and a tooth bottom far away from one end of the tooth top, the height of each positive rotation driving ratchet decreases progressively along the direction from the tooth top to the tooth bottom, the arc-shaped grooves comprise an abutting end and a sliding end, the depth of each arc-shaped groove increases progressively along the direction from the abutting end to the sliding end, and when the positive rotation driving ratchet engages with the arc-shaped grooves, the tooth top is connected with the abutting end, and the tooth bottom is connected with the sliding end.
As a further improvement, the gear mechanism includes a first gear assembly and a second gear assembly, the first gear assembly is disposed at one end of the optical axis, the second gear assembly is disposed at the middle of the optical axis, and the first gear assembly and the second gear assembly are disposed reversely on the optical axis.
As a further improvement, a spring accommodating groove is formed between the fixing piece and the transmission piece, a spring is arranged in the spring accommodating groove, when the forward and backward rotating motor rotates forward, the tooth top of the forward rotating driving ratchet of the first gear assembly is abutted against the abutting end of the arc-shaped groove to enable the gear of the first gear assembly to rotate, the tooth top of the forward rotating driving ratchet of the second gear assembly slides from the sliding end of the arc-shaped groove and compresses the spring, and the fixing piece of the second gear assembly drives the transmission piece to idle; when the forward and reverse rotation motor rotates reversely, the tooth top of the forward rotation driving ratchet of the second gear assembly is abutted against the abutting end of the arc-shaped groove to enable the gear of the second gear assembly to rotate, the tooth top of the forward rotation driving ratchet of the first gear assembly slides through the sliding end of the arc-shaped groove and compresses the spring, and the fixing piece of the first gear assembly drives the transmission piece to idle.
As a further improvement, the fixing member is fixed on the optical axis by using a bolt, and one end of the gear away from the fixing member is fixed on the optical axis by using a limiting member so as to limit the axial movement of the gear along the optical axis.
As a further improvement, the limiting piece is an arc-shaped shaft sleeve with one side being open, a bolt fixing seat is arranged at the opening of the arc-shaped shaft sleeve, a bolt is installed on the bolt fixing seat, a nut is in threaded connection with the bolt, a plurality of arc-shaped protruding blocks are arranged on the inner wall of the arc-shaped shaft sleeve, a bolt hole is formed in the side wall of one end of the arc-shaped shaft sleeve, which is far away from the bolt fixing seat, and the bolt hole is fixed on the optical axis through a bolt.
As a further improvement, the bolt hole is in a straight slot shape, and a plurality of arc steps are symmetrically arranged at two arc ends of the bolt hole.
As a further improvement, the forward and reverse rotation motor drives a worm, the worm engages a worm wheel, and the worm wheel rotates coaxially with the optical axis.
As a further improvement, a plurality of limiting blocks are arranged on the side wall of the fixing piece, the transmission piece is provided with limiting grooves matched with the limiting blocks, and the limiting blocks are connected with the limiting grooves.
The beneficial effects of the utility model are as follows:
(1) The first gear assembly and the second gear assembly both comprise gears which are coaxially arranged with the optical axis, the side wall of each gear is provided with a first accommodating groove, a fixing piece which is coaxially rotated with the optical axis is accommodated in each first accommodating groove, the side wall of each fixing piece is provided with a second accommodating groove, an accommodating cavity is formed between each first accommodating groove and each second accommodating groove, a transmission piece which coaxially rotates with the fixing piece is accommodated in each accommodating cavity, the bottom of each first accommodating groove of each gear is provided with a plurality of positive rotation driving ratchets, each transmission piece is provided with an arc-shaped groove which is matched with each positive rotation driving ratchet, and each positive rotation driving ratchet is connected with each arc-shaped groove. Through with the coaxial pivoted mounting of optical axis, set up the driving medium in the mounting, the inside arc recess that sets up with positive rotation initiative ratchet of driving medium replaces the pawl realizes the unidirectional rotation of gear, and this stable in structure can bear great stress, prevents to answer spare part damage and cause the life-span reduction of device.
(2) The fixing piece is fixed on the optical axis by using a bolt, and one end, far away from the fixing piece, of the gear is fixed on the optical axis by using a limiting piece so as to limit the axial movement of the gear along the optical axis. The inside joint structure that does not set up of gear, only can realize fixing through bolt and locating part, the device dismantles conveniently, conveniently changes spare part or inspection, also can conveniently set up the gear of different quantity and realize different transmission function.
(3) The locating part is one side open-ended arc axle sleeve, arc axle sleeve opening part is provided with the bolt fixing base, the bolt is installed to the bolt fixing base and with the nut of bolt spiro union, arc axle sleeve inner wall sets up a plurality of arc lug, the friction can be increased to the arc lug, reinforcing limiting displacement, the arc axle sleeve is kept away from the one end lateral wall of bolt fixing base sets up the bolt hole, the bolt hole uses the bolt fastening in on the optical axis. The bolt hole is straight slot mouth form, bolt hole arc both ends symmetry sets up a plurality of arc steps, the fastening effect of bolt can be strengthened to the arc step, prevents that the device from running, and the bolt is not hard up, causes spacing effect inefficacy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of a prior art ratchet.
Fig. 2 is a schematic structural diagram provided in an embodiment of the present utility model.
Fig. 3 is a schematic diagram of an explosion structure according to an embodiment of the present utility model.
Fig. 4 is a schematic view of a part of a structure provided in an embodiment of the present utility model.
Fig. 5 is a schematic diagram of the structure of A-A in fig. 4.
Fig. 6 is a schematic diagram of a gear structure according to an embodiment of the present utility model.
Fig. 7 is a schematic structural view of a fixing member according to an embodiment of the present utility model.
Fig. 8 is a schematic structural diagram of a transmission member according to an embodiment of the present utility model.
Fig. 9 is a schematic structural view of a limiting member according to an embodiment of the present utility model.
Fig. 10 is an enlarged view of the portion a in fig. 4.
Wherein:
10. a power mechanism; 101. a motor is arranged positively and negatively; 101a, a worm; 101b, a turbine; 102. an optical axis; 20. a first gear assembly; 201. a gear; 201a, a first accommodating groove; 201b, forward rotating active ratchet; 201b-1, tooth tops; 201b-2, tooth bottom; 202. a fixing member; 202a, a second accommodating groove; 202b, limiting blocks; 203. a receiving cavity; 204. a transmission member; 204a, a limit groove; 204b, an arcuate recess; 204b-1, an abutment end; 204b-2, a sliding end; 205. a spring accommodating groove; 206. a spring; 30. a second gear assembly; 40. a limiting piece; 401. an arc-shaped shaft sleeve; 402. a bolt fixing seat; 403. arc-shaped protruding blocks; 404. bolt holes; 404a, arcuate steps.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
In the description of the present utility model, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
Referring to fig. 2-3, a single motor drive gear assembly comprising:
the power mechanism 10 comprises a forward and reverse rotation motor 101 and an optical axis 102 driven by the forward and reverse rotation motor 101; in this embodiment, the forward and reverse rotation motor 101 drives the worm 101a, the worm 101a engages with the worm wheel 101b, the worm wheel 101b rotates coaxially with the optical axis 102, and in other embodiments, the forward and reverse rotation motor 101 may drive the optical axis 102 directly, or the forward and reverse rotation motor 101 is connected to the optical axis 102 through a speed reducer, which is not limited herein. Still including a plurality of gear mechanism of group, in this embodiment, gear mechanism is two sets of, gear assembly includes first gear assembly 20 and second gear assembly 30, first gear assembly 20 set up in the one end of optical axis 102, second gear assembly 30 set up in the middle part of optical axis 102, first gear assembly 20 and second gear assembly 30 reverse set up in on the optical axis 102, gear mechanism coaxial set up in optical axis 102.
Referring to fig. 3-8, the gear mechanism includes a gear 201 coaxially disposed with the optical axis 102, a first accommodating groove 201a is disposed on a side wall of the gear 201, a fixing member 202 coaxially rotating with the optical axis 102 is disposed in the first accommodating groove 201a, a second accommodating groove 202a is disposed on a side wall of the fixing member 202, an accommodating cavity 203 is formed between the first accommodating groove 201a and the second accommodating groove 202a, a transmission member 204 coaxially rotating with the fixing member 202 is disposed in the accommodating cavity 203, a plurality of forward rotation driving ratchet teeth 201b are disposed at a bottom of the first accommodating groove 201a of the gear, an arc-shaped groove 204b adapted to the forward rotation driving ratchet teeth 201b is disposed in the transmission member 204, and the forward rotation driving ratchet teeth 201b are connected with the arc-shaped groove 204b. The positive rotation driving ratchet 201b comprises tooth tops 201b-1 and tooth bottoms 201b-2 far away from one end of the tooth tops 201b-1, the height of each positive rotation driving ratchet 201b decreases along the direction from the tooth tops 201b-1 to the tooth bottoms 201b-2, the arc-shaped grooves 204b comprise abutting ends 204b-1 and sliding ends 204b-2, the depth of each arc-shaped groove 204b increases along the direction from the abutting ends 204b-1 to the sliding ends 204b-2, and when the positive rotation driving ratchet 201b engages with the arc-shaped groove 204b, the tooth tops 201b-1 are connected with the abutting ends 204b-1, and the tooth bottoms 201b-2 are connected with the sliding ends 204b-2.
The side wall of the fixing piece 202 is provided with a plurality of limiting blocks 202b, the transmission piece 204 is provided with limiting grooves 204a matched with the limiting blocks 202b, and the limiting blocks 202b are connected with the limiting grooves 204a.
A spring accommodating groove 205 is arranged between the fixing member 202 and the transmission member 204, a spring 206 is arranged in the spring accommodating groove 205, when the forward and reverse rotation motor 101 rotates forward, the tooth top 201b-1 of the forward rotation driving ratchet 201b of the first gear assembly 20 is abutted against the abutting end 204b-1 of the arc-shaped groove 204b to rotate the gear 201 of the first gear assembly 20, the tooth top 201b-1 of the forward rotation driving ratchet 201b of the second gear assembly 30 slides from the sliding end 204b-2 of the arc-shaped groove 204b and compresses the spring 206, and the fixing member 202 of the second gear assembly 30 drives the transmission member 204 to idle; when the forward and reverse rotation motor 101 rotates reversely, the tooth top 201b-1 of the forward rotation driving ratchet 201b of the second gear assembly 30 abuts against the abutting end 204b-1 of the arc-shaped groove 204b to rotate the gear 201 of the second gear assembly 30, the tooth top 201b-1 of the forward rotation driving ratchet 201b of the first gear assembly 20 slides from the sliding end 204b-2 of the arc-shaped groove 204b and compresses the spring 206, and the fixing member 202 of the first gear assembly 20 drives the transmission member 204 to idle. Through with the mounting 202 of optical axis 102 coaxial rotation, set up the driving medium 204 in the mounting 202, the inside arc recess 204b that sets up with positive rotation initiative ratchet 201b of driving medium 204 replaces the unidirectional rotation of pawl realization gear 201, this stable in structure can bear great stress, prevents to answer spare part damage and cause the life-span reduction of device.
Referring to fig. 9-10, the fixing member 202 is fixed to the optical axis 102 using a bolt, and the end of the gear 201 remote from the fixing member 202 fixes the optical axis 102 using a stopper 40 so as to restrict the axial movement of the gear 201 along the optical axis 102. The inside joint structure that does not set up of gear, only can realize fixing through bolt and locating part, the device dismantles conveniently, conveniently changes spare part or inspection, also can conveniently set up the gear of different quantity and realize different transmission function.
In this embodiment, the limiting member 40 is an arc-shaped shaft sleeve 401 with an opening at one side, a bolt fixing seat 402 is arranged at the opening of the arc-shaped shaft sleeve 401, a bolt and a nut screwed with the bolt are installed on the bolt fixing seat 402, a plurality of arc-shaped protruding blocks 403 are arranged on the inner wall of the arc-shaped shaft sleeve 401, friction force can be increased by the arc-shaped protruding blocks 403, limiting effect is enhanced, a bolt hole 404 is arranged on the side wall of one end of the arc-shaped shaft sleeve 401, which is far away from the bolt fixing seat 402, and the bolt hole 404 is fixed on the optical axis 102 by using a bolt.
The bolt hole 404 is in a straight slot shape, and a plurality of arc steps 404a are symmetrically arranged at two arc ends of the bolt hole 404. The arc-shaped step 404a can enhance the fastening function of the bolt and prevent the bolt from loosening and losing the limit function when the device is operated.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (9)
1. A single motor drive gear arrangement comprising:
a power mechanism (10) comprising a forward and reverse rotation motor (101) and an optical axis (102) driven by the forward and reverse rotation motor (101);
a plurality of groups of gear mechanisms coaxially arranged on the optical axis (102);
the gear mechanism comprises a gear (201) which rotates in a non-synchronous mode with the optical axis (102), a first accommodating groove (201 a) is formed in the side wall of the gear (201), a fixing piece (202) which rotates in a synchronous mode with the optical axis (102) is accommodated in the first accommodating groove (201 a), a second accommodating groove (202 a) is formed in the side wall of the fixing piece (202), an accommodating cavity (203) is formed between the first accommodating groove (201 a) and the second accommodating groove (202 a), a transmission piece (204) which rotates in a synchronous mode with the fixing piece (202) in a coaxial mode is accommodated in the accommodating cavity (203), a plurality of positive rotation driving ratchets (201 b) are arranged at the bottom of the first accommodating groove (201 a), arc grooves (204 b) which are matched with the positive rotation driving ratchets (201 b) are arranged in the transmission piece (204), and the positive rotation driving ratchets (201 b) are connected with the arc grooves (204 b).
2. The single motor drive gear device according to claim 1, wherein the positive rotation driving ratchet teeth (201 b) comprise tooth tops (201 b-1) and tooth bottoms (201 b-2) far from one end of the tooth tops (201 b-1), the height of each positive rotation driving ratchet tooth (201 b) decreases along the direction from the tooth top (201 b-1) to the tooth bottom (201 b-2), the arc-shaped groove (204 b) comprises an abutting end (204 b-1) and a sliding end (204 b-2), the depth of each arc-shaped groove (204 b) increases along the direction from the abutting end (204 b-1) to the sliding end (204 b-2), the tooth tops (201 b-1) are connected with the abutting end (204 b-1) when the positive rotation driving ratchet tooth (201 b) engages with the arc-shaped groove (204 b), and the tooth bottoms (201 b-2) are connected with the sliding end (204 b-2).
3. The single motor drive gear arrangement according to claim 2, wherein the gear mechanism comprises a first gear assembly (20) and a second gear assembly (30), the first gear assembly (20) being arranged at one end of the optical axis (102), the second gear assembly (30) being arranged in the middle of the optical axis (102), the first gear assembly (20) and the second gear assembly (30) being arranged in opposite directions on the optical axis (102).
4. A single motor drive gear device according to claim 3, wherein a spring accommodating groove (205) is provided between the fixing member (202) and the transmission member (204), a spring (206) is provided in the spring accommodating groove (205), when the forward and reverse rotation motor (101) rotates forward, a tooth top (201 b-1) of a forward rotation driving ratchet (201 b) of the first gear assembly (20) abuts against an abutting end (204 b-1) of an arc groove (204 b) to rotate the gear (201) of the first gear assembly (20), the tooth top (201 b-1) of the forward rotation driving ratchet (201 b) of the second gear assembly (30) slides from a sliding end (204 b-2) of the arc groove (204 b) and compresses the spring (206), and the fixing member (202) of the second gear assembly (30) drives the transmission member (204) to idle; when the forward and reverse rotation motor (101) rotates reversely, the tooth top (201 b-1) of the forward rotation driving ratchet (201 b) of the second gear assembly (30) is abutted against the abutting end (204 b-1) of the arc-shaped groove (204 b) to enable the gear (201) of the second gear assembly (30) to rotate, the tooth top (201 b-1) of the forward rotation driving ratchet (201 b) of the first gear assembly (20) slides through the sliding end (204 b-2) of the arc-shaped groove (204 b) and compresses the spring (206), and the fixing piece (202) of the first gear assembly (20) drives the transmission piece (204) to idle.
5. A single motor driven gear arrangement according to claim 1, wherein the fixing member (202) is bolted to the optical axis (102), and the end of the gear (201) remote from the fixing member (202) is secured to the optical axis (102) using a stop member (40) to limit axial movement of the gear (201) along the optical axis (102).
6. The single motor driving gear device according to claim 5, wherein the limiting member (40) is an arc-shaped shaft sleeve (401) with an opening at one side, a bolt fixing seat (402) is arranged at the opening of the arc-shaped shaft sleeve (401), a bolt and a nut screwed with the bolt are installed on the bolt fixing seat (402), a plurality of arc-shaped protruding blocks (403) are arranged on the inner wall of the arc-shaped shaft sleeve (401), a bolt hole (404) is arranged on the side wall of one end, far away from the bolt fixing seat (402), of the arc-shaped shaft sleeve (401), and the bolt hole (404) is fixed on the optical axis (102) by using a bolt.
7. The single motor drive gear device according to claim 6, wherein the bolt hole (404) is in a straight slot shape, and a plurality of arc steps (404 a) are symmetrically arranged at two arc ends of the bolt hole (404).
8. A single motor driven gear arrangement according to claim 1, characterized in that the counter-rotating motor (101) drives a worm (101 a), the worm (101 a) engaging a worm wheel (101 b), the worm wheel (101 b) rotating coaxially with the optical axis (102).
9. The single motor driving gear device according to claim 1, wherein a plurality of limiting blocks (202 b) are arranged on the side wall of the fixing member (202), a limiting groove (204 a) adapted to the limiting block (202 b) is formed in the transmission member (204), and the limiting block (202 b) is connected with the limiting groove (204 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320989520.4U CN220118583U (en) | 2023-04-27 | 2023-04-27 | Single motor drive gear device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320989520.4U CN220118583U (en) | 2023-04-27 | 2023-04-27 | Single motor drive gear device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220118583U true CN220118583U (en) | 2023-12-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320989520.4U Active CN220118583U (en) | 2023-04-27 | 2023-04-27 | Single motor drive gear device |
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| Country | Link |
|---|---|
| CN (1) | CN220118583U (en) |
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2023
- 2023-04-27 CN CN202320989520.4U patent/CN220118583U/en active Active
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