Gear case of sewing machine
A gearbox and sewing machine technology, which is applied to sewing machine components, sewing machine control devices, sewing equipment, etc., can solve the problems of gearbox power reduction, power output loss, and mechanical energy loss, etc., and achieve a compact gearbox structure and a large use space , the effect of reducing the production cost
Inactive Publication Date: 2014-09-24
ZHEJIANG DOSO SEWING MACHINE
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Problems solved by technology
[0002] Conventional sewing machine gear boxes, such as figure 1 Shown, have: a spline is set on the driving wheel (4), the embodiment in the past is that the driving wheel (4) is set to the through groove that matches with the spline shape, the spline communicates with the motor, and the driving wheel (4 ) is driven by a spline to output power, and there are the following problems in setting the spline: first, because the power of the gearbox is indirectly transmitted to the driving wheel by the spline, the mechanical energy is lost, resulting in a reduction in the power of the gearbox; second, The splines will be twisted after a long time of use, and the power output will be damaged again; the third is that the production cost and maintenance cost of the splines are often added with lubricants
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[0013] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0014] Examples such as figure 1 Shown: a kind of sewing machine gear box, has the box body that is made up of gear box seat 1 and gear box plate 2, is fixedly connected with transmission mechanism in box body, and this transmission mechanism comprises synchronous belt 3, is located at synchronous belt 3 bottom inner side The driving wheel 4, the driven wheel 5 arranged on the inner side of both ends of the upper part of the synchronous belt 3, the gear 6 arranged on the end surface of the driven wheel 5 towards the gear box plate 2, and the tension wheel 7 arranged on the outer side of the middle part of the synchronous belt 3, in the above-mentioned A motor 8 is fixedly connected on the gear case plate 2, and the shaft c...
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The invention relates to the technical field of sewing machines, in particular to a gear case of a sewing machine. The gear case is provided with a case body composed of a gear case base and a gear case plate. A transmission mechanism is fixedly connected into the case body. The transmission mechanism comprises a synchronous belt, a driving wheel arranged on the inner side of the lower portion of the synchronous belt, driven wheels arranged on the inner sides of the two ends of the upper portion of the synchronous belt, gears arranged on the end faces, facing the gear case plate, of the driven wheels and a tension wheel arranged on the outer side of the middle of the synchronous belt. A motor is fixedly connected to the gear case plate, and a mandrel of the motor penetrates through the gear case plate to the inner portion of the case body to be fixedly connected with the driving wheel. The power output efficiency of the gear case of the sewing machine is improved in the mode that the motor is fixedly connected to the gear case and the mandrel of the motor is connected with the driving wheel; the gear case of the sewing machine cannot be adapted to spline, so that the structure of the gear case is more compact, the utilization space of the inner portion of the sewing machine is larger comparatively, and the gear case has the advantage of lowering the manufacturing cost.
Description
technical field [0001] The invention relates to the technical field of sewing machines, in particular to a sewing machine gear box. Background technique [0002] Conventional sewing machine gearboxes, such as figure 1 Shown, have: a spline is set on the driving wheel (4), the embodiment in the past is that the driving wheel (4) is set to the through groove that matches with the spline shape, the spline communicates with the motor, and the driving wheel (4 ) is driven by a spline to output power, and there are the following problems in setting the spline: first, because the power of the gearbox is indirectly transmitted to the driving wheel by the spline, the mechanical energy is lost, resulting in a reduction in the power of the gearbox; second, After a long time of use, the spline will be twisted, and the power output will be damaged again; the third is that the production cost and maintenance cost of the spline are often added with lubricant. It is a technical problem to...
Claims
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Inventor 叶仙冲
Owner ZHEJIANG DOSO SEWING MACHINE