CN109876467B - Spring rear-entry type gearbox for toy car and spring assembling method - Google Patents
Spring rear-entry type gearbox for toy car and spring assembling method Download PDFInfo
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- CN109876467B CN109876467B CN201910172312.3A CN201910172312A CN109876467B CN 109876467 B CN109876467 B CN 109876467B CN 201910172312 A CN201910172312 A CN 201910172312A CN 109876467 B CN109876467 B CN 109876467B
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Abstract
The invention relates to the technical field of transmission parts, in particular to a clockwork spring rear-entry gearbox for a toy car, which comprises a gear assembly, a rotating shaft, a clockwork spring and a shell formed by one-time injection molding, wherein the rotating shaft is arranged in the shell in a penetrating way, the gear assembly is arranged in the shell, and the rotating shaft is in transmission connection with the shell; one side of the shell is provided with a slot for accommodating a spring, the rotating shaft protrudes out of the shell through the slot, and the spring is assembled into the shell from the slot and is wound on the rotating shaft. According to the invention, the spring is assembled after the shell is injection molded, so that components except the spring of the gearbox can be assembled before parameters of the spring are acquired, and the assembly of the gearbox can be completed only by assembling the spring after the parameters of the spring are acquired, so that the assembly steps of the gearbox are more flexible. The invention also provides a spring assembling method of the gearbox, and the effect of feeding the spring is achieved.
Description
Technical Field
The invention relates to the technical field of transmission parts, in particular to a clockwork spring rear-entry gearbox for a toy car and a clockwork spring assembling method.
Background
Non-electric toys, such as non-electric toy vehicles, mostly convert power into self power through a gearbox to realize actions. Because the toy is generally small in size, in order to save cost, the gearbox used by the toy is made of metal except for a rotating shaft and a spring, other parts such as a gear and a shell are made of plastic, and during manufacturing, the parts in the shell are usually put into a mould for injection molding the shell, and then the injection molding of the shell is carried out, so that the manufactured gearbox is directly fixed in the shell, and the parts are prevented from being separated due to the fact that the shell is scattered.
But this approach has the following disadvantages: the different buyers can have different torques of the springs required by the gearboxes with the same size, so that a gearbox manufacturer can only wind the springs and injection-mold the shell after determining the demands of the buyers, but cannot produce the shell in advance, the delivery time can be prolonged, and when the gearboxes are not required, the gearbox manufacturer cannot produce the shell in advance, and labor force is wasted.
Disclosure of Invention
The invention provides a clockwork spring rear-entry gearbox for a toy car and a clockwork spring assembling method, aiming at the problems in the prior art, and a manufacturer can produce a shell in advance, so that delivery time is shortened, and labor waste is avoided.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention provides a clockwork spring rear-entry gearbox for a toy car, which comprises a gear assembly, a rotating shaft, a clockwork spring and a shell formed by one-time injection molding, wherein the rotating shaft is arranged in the shell in a penetrating way, the gear assembly is arranged in the shell, and the rotating shaft is connected with the shell in a transmission way; one side of the shell is provided with a slot for accommodating a spring, the rotating shaft protrudes out of the shell through the slot, and the spring is assembled into the shell from the slot and is wound on the rotating shaft.
Further, the rotating shaft is provided with a supporting ring, and the supporting ring is used for bearing the spring.
Further, the gear assembly comprises a plurality of transmission gears, the transmission gears are meshed in sequence, and one transmission gear is in transmission connection with the rotating shaft; each transmission gear is respectively provided with a shaft post, and two ends of the shaft post are respectively rotatably arranged on the side wall of the shell.
Further, a transmission groove is formed in one end, far away from the groove, of the rotating shaft;
the other end of the rotating shaft is provided with a stabilizing groove.
Further, the stabilizing groove coincides with one cross section of the rotating shaft, and the stabilizing groove penetrates through the side wall of the rotating shaft.
Further, a side opening is formed in the side wall of the shell, and the side opening is communicated with the groove.
The invention also provides a spring assembling method applied to the gearbox, which comprises the following steps:
a. a slot is formed in one side of the shell of the gearbox, and one side of the rotating shaft protrudes out of the shell through the slot;
b. bending one end of a spring to be assembled;
c. inserting the bending end of the spring to be assembled into the shell through the slot, and wrapping the bending end of the spring to be assembled on a rotating shaft of the gearbox;
d. and rotating the rotating shaft to enable the spring to wind on the rotating shaft under the driving of the rotation of the rotating shaft until the spring is completely assembled in the shell through the slot.
Further, in step d, the method specifically includes:
d1, inserting a stabilizing shaft into a stabilizing groove of the rotating shaft;
d2, inserting a rotating mechanism into a transmission groove of the rotating shaft, and driving the rotating shaft to rotate through the rotating mechanism so that the spring is wound on the rotating shaft along with the rotation of the rotating shaft.
Further, step e: the outer side wall of the rotating shaft is provided with a supporting ring, and after the spring is assembled in the shell, the supporting ring supports the spring.
Further, in step a, specifically includes:
a1, a side wall of the shell is provided with a side opening which is communicated with the slot;
a2, assembling the bent end of the spring into the shell through a slot, and positioning the other end of the spring in the side opening;
a3, the spring is positioned in the stabilizing groove, and the bending end of the spring is wrapped on one side of the rotating shaft.
The invention has the beneficial effects that: according to the invention, the slotting is arranged on the shell of the gearbox, so that a manufacturer can put the gear assembly and the rotating shaft into the die to form the shell when the shell is injection molded, and after confirming parameters of the spring, the spring is put into the shell through the slotting and wraps the rotating shaft, and then the spring is wound on the rotating shaft along with the rotation of the rotating shaft in a rotating manner, so that the effect of putting the spring after the spring is realized, the delivery time is shortened, and the gearbox manufacturer can perform the molding and manufacturing of the shell in advance, thereby improving the production efficiency of the gearbox.
Drawings
FIG. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic view of a spindle according to the present invention.
FIG. 3 is a schematic view of a gear assembly of the present invention.
Reference numerals: 1-shell, 2-gear assembly, 3-rotating shaft, 4-grooving, 5-supporting ring, 6-transmission gear, 7-shaft post, 8-transmission groove, 9-stabilizing groove, 10-side opening, 11-rotating shaft gear and 12-meshing tooth.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention. The present invention will be described in detail below with reference to the accompanying drawings.
Example 1
As shown in fig. 1, the present embodiment provides a spring-back gearbox for a toy vehicle, which includes a gear assembly 2, a rotating shaft 3, a spring (not labeled in the figure) and a housing 1 formed by one-time injection molding, wherein the rotating shaft 3 is arranged in the housing 1 in a penetrating way, the gear assembly 2 is arranged in the housing 1, and the rotating shaft 3 is connected to the housing 1 in a transmission way; one side of the housing 1 is provided with a slot 4 for accommodating a spring, the rotating shaft 3 protrudes out of the housing 1 through the slot 4, and the spring is assembled into the housing 1 from the slot 4 and is wound around the rotating shaft 3.
Compared with the existing gearbox, the invention has the advantages that the slotting 4 is arranged on the shell 1, and when the requirements of buyers are not received, manufacturers can perform injection molding of the shell 1 in advance, namely, the gear assembly 2, the rotating shaft 3 and the shell 1 are assembled; when the requirement is received, selecting the spring, bending one end of the spring, inserting the bent end of the spring into the shell 1 from the slot 4, and enabling the bent end to wrap the rotating shaft 3; and then the rotating shaft 3 is rotated, so that the spring is continuously wound on the rotating shaft 3 along with the rotation of the rotating shaft 3 until the spring completely enters the shell 1 from the slot 4, and the assembly of the spring can be completed. The spring is assembled after the shell 1 is molded, so that the injection molding and the assembly of the shell 1 of the gearbox are carried out without obtaining parameters of the spring in advance, the spring is only needed to be arranged in the gearbox after the requirement information is received, the time from the information receiving to the delivery can be effectively saved, and manufacturers can complete the assembly of most parts of the gearbox in advance, so that the time waste is avoided.
As shown in fig. 2, in this embodiment, the rotating shaft 3 is provided with a supporting ring 5, and the supporting ring 5 is used for bearing a spring. The spring is supported by the support ring 5 to avoid contact with the gear assembly 2 after assembly into the housing 1, thereby ensuring the stability of the present invention.
As shown in fig. 3, in the present embodiment, the gear assembly 2 includes a plurality of transmission gears 6, and the plurality of transmission gears 6 are sequentially meshed, wherein one transmission gear 6 is in transmission connection with the rotating shaft 3, specifically, the transmission gear 6 is meshed with the rotating shaft gear 6 labeled in fig. 2, although the meshing teeth of the rotating shaft gear 6 are not shown in fig. 2, the shape of the rotating shaft gear 6 is a prior art in the field, and will not be described herein; each transmission gear 6 is respectively provided with a shaft post 7, and two ends of the shaft post 7 are respectively rotatably arranged on the side wall of the shell 1. Namely, each transmission gear 6 is respectively provided with a shaft post 7 which is used as the rotating shaft center of the transmission gears 6, so that the stability of transmission between the transmission gears 6 can be ensured, and the reduction of the effect of the invention caused by the displacement of the transmission gears 6 is avoided.
As shown in fig. 2, in this embodiment, a transmission groove 8 is disposed at an end of the rotating shaft 3 away from the slot 4; the other end of the rotating shaft 3 is provided with a stabilizing groove 9. Namely, through the arrangement of the transmission groove 8 and the stabilizing groove 9, the rotation of the rotating shaft 3 can be completed through automatic equipment, specifically: when the rotating shaft 3 needs to be rotated, a driving shaft movably arranged by the automatic equipment is inserted into the stabilizing groove 9, and then a power source is inserted into the transmission groove 8, so that the rotating shaft 3 can be driven to rotate by the power source; the stabilizing groove 9 is arranged for fixing the invention through an external mechanism, for example, a rotating shaft which is rotatably arranged on an external frame is inserted into the stabilizing groove 9 for fixing, so that the energy of a power source can be transmitted to the rotating shaft 3 for rotation in a maximum efficiency manner. Specifically, the transmission groove 8 has a cross shape, and the stabilizing groove 9 has an "-" shape.
As shown in fig. 1 or fig. 2, in this embodiment, the stabilizing slot 9 coincides with one of the cross sections of the rotating shaft 3, and the stabilizing slot 9 penetrates through the side wall of the rotating shaft 3. Namely, after the bending end of the spring is installed into the shell 1 from the slot 4, the body of the spring is assembled in the stabilizing slot 9, and the bending end of the spring is buckled on the outer side wall of the rotating shaft 3, so that when the rotating shaft 3 rotates, the spring can be reliably ensured to rotate along with the rotating shaft 3, and the spring can be ensured to be wound into the shell 1 along with the rotation of the rotating shaft 3.
Specifically, the rotating shaft 3 is provided with the teeth 12, and the teeth 12 are located below the supporting ring 5, and although the shape and structure of the teeth 12 are not drawn in fig. 2, the teeth 12 are of a simple mechanical structure, which is necessary for those skilled in the art to understand, so even though the specific shape is not shown in fig. 2, the understanding of those skilled in the art will not be affected; and the tooth 12 is for engagement with the gear assembly 2 to achieve a gearing effect.
As shown in fig. 1, in the present embodiment, a side wall of the housing 1 is provided with a side opening 10, and the side opening 10 communicates with the slot 4. That is, after the spring enters the housing 1 from the slot 4, the spring and the housing 1 are kept at the same horizontal plane, and then the spring does not enter the housing 1 along with the rotation of the rotating shaft 3, and the part of the spring which does not enter the housing 1 enters the housing 1 through the side opening 10, so that the smoothness of the spring entering the housing 1 can be ensured, and the spring is prevented from being clamped in the process of entering the housing 1, so that the assembly efficiency is influenced.
Example 2
The embodiment provides a spring assembling method of a gearbox, which is used for assembling the gearbox in the embodiment 1 to an assembling place, and specifically comprises the following steps:
a0: placing the gear assembly 2 and the rotating shaft 3 into injection molding equipment of the shell 1, and then injection molding the shell 1, so that the gear assembly 2 and the rotating shaft 3 are positioned in the shell 1; specifically, this approach is within the routine skill in the art;
a. a slot 4 is formed on one side of the shell 1 of the gearbox, and one side of the rotating shaft 3 protrudes out of the shell 1 through the slot 4;
b. bending one end of a spring to be assembled;
c. inserting the bending end of the spring to be assembled into the shell 1 through the slot 4, and wrapping the bending end of the spring to be assembled on the rotating shaft 3 of the gearbox;
d. the rotating shaft 3 is rotated, so that the spring is wound on the rotating shaft 3 under the driving of the rotation of the rotating shaft 3 until the spring is completely assembled in the shell 1 through the slot 4.
Through the mode, the components except the shell 1 of the gearbox are assembled, parameters such as the winding number of the required spring are obtained, and the spring is assembled into the shell 1, so that the flexibility of the production steps of the gearbox is improved, and the reasonable utilization of the production time is facilitated.
In this embodiment, in step d, specifically includes:
d1, inserting a stabilizing shaft into a stabilizing groove 9 of the rotating shaft 3;
d2, a rotating mechanism is adopted to insert into a transmission groove 8 of the rotating shaft 3, and then the rotating shaft 3 is driven to rotate through the rotating mechanism, so that the spring is wound on the rotating shaft 3 along with the rotation of the rotating shaft 3. Through the arrangement of the stabilizing groove 9 and the transmission groove 8, the invention can more stably rotate the rotating shaft 3 through automatic equipment, thereby completing the winding action.
In this embodiment, the method further includes step e: the outer side wall of the rotating shaft 3 is provided with a supporting ring 5, and after the spring is assembled in the shell 1, the supporting ring 5 supports the spring, so that the spring cannot be contacted with the gear assembly 2 after being assembled in the shell 1.
In this embodiment, in step a, specifically includes:
a1, a side wall of the shell is provided with a side opening 10, and the side opening 10 is communicated with the slot 4;
a2, assembling the bent end of the spring into the shell 1 through the slot 4, and positioning the other end of the spring in the side opening 10;
a3, the spring is positioned in the stabilizing groove 9, and the bending end of the spring is wrapped on one side of the rotating shaft 3. Namely, when the bending end of the spring enters the shell 1, the body of the spring is positioned in the stabilizing groove 9, the bending end is buckled on one side of the rotating shaft 3, then when the rotating shaft 3 rotates, the spring is driven to move towards one side inner wall of the side opening 10 by the rotation of the rotating shaft 3, the spring is enabled to be in contact with the side inner wall of the side opening 10, then the spring takes the contact point as a fulcrum, and continuously enters the shell 1 along with the rotation of the rotating shaft 3 until the spring is completely wound on the rotating shaft 3, and the assembly of the spring is completed.
The present invention is not limited to the preferred embodiments, but is intended to be limited to the following description, and any modifications, equivalent changes and variations in light of the above-described embodiments will be apparent to those skilled in the art without departing from the scope of the present invention.
Claims (9)
1. A clockwork rear entry gearbox for a toy vehicle, comprising: the gear assembly is arranged in the shell in a penetrating way, and the rotating shaft is in transmission connection with the shell; one side of the shell is provided with a slot for accommodating a spring, the rotating shaft protrudes out of the shell through the slot, and the spring is assembled into the shell from the slot and is wound on the rotating shaft.
2. A wind-back gearbox for a toy vehicle according to claim 1, wherein: the rotating shaft is provided with a supporting ring, and the supporting ring is used for bearing the spring.
3. A wind-back gearbox for a toy vehicle according to claim 1, wherein: the gear assembly comprises a plurality of transmission gears, the transmission gears are meshed in sequence, and one transmission gear is in transmission connection with the rotating shaft; each transmission gear is respectively provided with a shaft post, and two ends of the shaft post are respectively rotatably arranged on the side wall of the shell.
4. A wind-back gearbox for a toy vehicle according to claim 1, wherein: a transmission groove is formed in one end, away from the groove, of the rotating shaft;
the other end of the rotating shaft is provided with a stabilizing groove.
5. A wind-back gearbox for a toy vehicle according to claim 1, wherein: the side wall of the shell is provided with a side opening, and the side opening is communicated with the groove.
6. A spring assembly method for a gearbox according to any one of claims 1 to 5, characterised in that: the method comprises the following steps:
a. a slot is formed in one side of the shell of the gearbox, and one side of the rotating shaft protrudes out of the shell through the slot;
b. bending one end of a spring to be assembled;
c. inserting the bending end of the spring to be assembled into the shell through the slot, and wrapping the bending end of the spring to be assembled on a rotating shaft of the gearbox;
d. and rotating the rotating shaft to enable the spring to wind on the rotating shaft under the driving of the rotation of the rotating shaft until the spring is completely assembled in the shell through the slot.
7. A method of assembling a power spring according to claim 6, wherein: in step d, specifically including:
d1, inserting a stabilizing shaft into a stabilizing groove of the rotating shaft;
d2, inserting a rotating mechanism into a transmission groove of the rotating shaft, and driving the rotating shaft to rotate through the rotating mechanism so that the spring is wound on the rotating shaft along with the rotation of the rotating shaft.
8. A method of assembling a power spring according to claim 6, wherein: further comprising step e: the outer side wall of the rotating shaft is provided with a supporting ring, and after the spring is assembled in the shell, the supporting ring supports the spring.
9. A method of assembling a power spring according to claim 6, wherein: in step a, specifically, the method includes:
a1, a side wall of the shell is provided with a side opening which is communicated with the slot;
a2, assembling the bent end of the spring into the shell through a slot, and positioning the other end of the spring in the side opening;
a3, the spring is positioned in the stabilizing groove, and the bending end of the spring is wrapped on one side of the rotating shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172312.3A CN109876467B (en) | 2019-03-07 | 2019-03-07 | Spring rear-entry type gearbox for toy car and spring assembling method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910172312.3A CN109876467B (en) | 2019-03-07 | 2019-03-07 | Spring rear-entry type gearbox for toy car and spring assembling method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109876467A CN109876467A (en) | 2019-06-14 |
| CN109876467B true CN109876467B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910172312.3A Active CN109876467B (en) | 2019-03-07 | 2019-03-07 | Spring rear-entry type gearbox for toy car and spring assembling method |
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| CN (1) | CN109876467B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB648022A (en) * | 1948-11-08 | 1950-12-28 | Universal Injection Plastics L | Improvements in or relating to toy vehicles |
| CN1281948A (en) * | 1999-07-24 | 2001-01-31 | 王伟国 | Mechanical energy-storing device |
| CN206682243U (en) * | 2017-04-28 | 2017-11-28 | 汕头市力源精密科技有限公司 | A kind of Novel sound-silencing gear-box |
| CN209900706U (en) * | 2019-03-07 | 2020-01-07 | 东莞伟嘉塑胶电子制品有限公司 | Spring rear-entering gearbox for toy car |
-
2019
- 2019-03-07 CN CN201910172312.3A patent/CN109876467B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB648022A (en) * | 1948-11-08 | 1950-12-28 | Universal Injection Plastics L | Improvements in or relating to toy vehicles |
| CN1281948A (en) * | 1999-07-24 | 2001-01-31 | 王伟国 | Mechanical energy-storing device |
| CN206682243U (en) * | 2017-04-28 | 2017-11-28 | 汕头市力源精密科技有限公司 | A kind of Novel sound-silencing gear-box |
| CN209900706U (en) * | 2019-03-07 | 2020-01-07 | 东莞伟嘉塑胶电子制品有限公司 | Spring rear-entering gearbox for toy car |
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| Publication number | Publication date |
|---|---|
| CN109876467A (en) | 2019-06-14 |
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