阅读说明：本技术 一种电动绞盘 (Electric capstan ) 是由 夏林 于 2019-12-04 设计创作，主要内容包括：本发明提供一种电动绞盘。该电动绞盘包括卷扬筒、电机、减速箱、刹车组件,上述电机固定在左支架上,电机的主轴穿过左支架处在卷扬筒内,减速箱由行星机构和摆线式针轮机构组成,行星机构包含有端盖、太阳轮、行星轮、行星架和输出外齿轮,端盖内设有内齿圈,行星轮啮合着内齿圈及太阳轮,同时太阳轮插入端盖上的滑套中,行星轮固定在行星架上,且行星架上固定有输出外齿轮,端盖固定在外筒上,同时输出外齿轮与摆线式针轮机构的偏心轴上的内齿接头固定,刹车组件处在卷扬筒内,且刹车组件一侧与电机主轴固定,另一侧能够穿出卷扬筒及穿过摆线式针轮机构与太阳轮插接,用于带动太阳轮转动。这样整体结构更为的紧凑,安装维修都较为的方便。(The invention provides an electric capstan. The electric capstan comprises a hoisting drum, a motor, a reduction gearbox and a brake assembly, wherein the motor is fixed on a left support, a main shaft of the motor penetrates through the left support and is positioned in the hoisting drum, the reduction gearbox consists of a planetary mechanism and a cycloid type needle wheel mechanism, the planetary mechanism comprises an end cover, a sun wheel, a planet carrier and an output outer gear, an inner gear ring is arranged in the end cover, the planet wheel is meshed with the inner gear ring and the sun wheel, meanwhile, the sun gear is inserted into a sliding sleeve on an end cover, the planet gear is fixed on a planet carrier, an output external gear is fixed on the planet carrier, the end cover is fixed on the outer cylinder, meanwhile, the output external gear is fixed with an internal gear joint on an eccentric shaft of the cycloid needle wheel mechanism, the brake component is positioned in the winding drum, and one side of the brake component is fixed with the main shaft of the motor, and the other side of the brake component can penetrate out of the hoisting drum and penetrate through the cycloid type needle wheel mechanism to be inserted into the sun wheel so as to drive the sun wheel to rotate. Therefore, the whole structure is more compact, and the installation and maintenance are more convenient.)

1. An electric winch, comprising:

the two brackets are respectively a left bracket and a right bracket;

the two sides of the hoisting drum are fixed on the left bracket and the right bracket through sliding bearings;

the motor is fixed on the left bracket, and a main shaft of the motor penetrates through the left bracket and is positioned in the winding drum;

the reduction gearbox consists of a planetary mechanism and a cycloid type pinwheel mechanism, the planetary mechanism comprises an end cover, a sun gear, planet gears, a planet carrier and an output spline wheel, the opening on one side of the end cover is hollow, an inner gear ring is arranged on the inner peripheral wall of the end cover, the three planet gears are meshed with the inner gear ring and the sun gear, the sun gear is inserted into a sliding sleeve of the end cover, the three planet gears are fixed on the planet carrier, an output outer gear is fixed on the planet carrier, the end cover is fixed on an outer cylinder of the cycloid type pinwheel mechanism, and the output outer gear is fixed with an inner gear joint on an eccentric shaft in the cycloid type pinwheel mechanism;

the brake assembly is arranged in the hoisting drum, one side of the brake assembly is fixed with the motor spindle, the other side of the brake assembly penetrates out of the hoisting drum and penetrates through the cycloid type pinwheel mechanism to be connected with the sun wheel, meanwhile, the brake assembly drives the sun wheel to rotate after rotating, and the brake assembly can simultaneously drive the hoisting drum to rotate.

2. The electric capstan of claim 1, wherein said brake assembly comprises a multi-headed nut I, a multi-headed bolt I, a multi-headed nut II, and a multi-headed bolt II,

the multi-head nut I is provided with a stepped central hole which is formed by three hole sections,

the multi-head bolt I is in threaded connection with the left outer side hole section, a transmission shaft I fixed with a motor spindle extends outwards from the left side of the multi-head bolt I,

the multi-head nut II is arranged on the right outer side hole section, the multi-head nut II and the multi-head nut I are fixed through screws, a bolt hole is further formed in the center of the multi-head nut II,

one side of the multi-head bolt II is screwed with a bolt hole of the multi-head nut II, the other side surface of the multi-head bolt II is smooth and is positioned on the outer side of the multi-head nut II, a steel sleeve in clearance fit is sleeved on the multi-head bolt II with a smooth surface, a one-way bearing is fixed on the outer side of the steel sleeve, a spline shaft is fixed on the outer side of the one-way bearing and is meshed with an internal spline arranged on the winding drum,

the opposite sides of the multi-head bolt I and the multi-head bolt II extend into a middle hole section of the multi-head nut I, nuts are screwed on the extending sides of the multi-head bolt I and the multi-head bolt II, the nuts are fixed after being screwed, the thread directions of the multi-head bolt I and the multi-head bolt II are opposite, and a transmission shaft II which can be inserted into the sun gear is fixed on the outer side of the multi-head bolt II without the nuts.

3. The electric capstan according to claim 2, wherein the driving shaft I and the driving shaft II are hexagonal columns, and the driving shaft I and the driving shaft II are fastened by split elastic rings after being inserted into the multi-head bolt I and the multi-head bolt II respectively.

Technical Field

The present invention relates to an electric capstan.

Background

The electric capstan is a device that can be used for traction, and is used in many cars, such as car capstan, and is used in many cases for self-rescue or rescue in severe environment, the existing electric capstan mainly comprises a motor, a transmission shaft, a windlass, a brake component and a reduction transmission case, the existing reduction transmission case is composed of three planetary wheel components with different sizes, namely a primary planetary wheel component, a secondary planetary wheel component and a tertiary planetary wheel component, which are sequentially engaged to realize reduction transmission, when the electric capstan is stressed during operation, the three planetary wheels are respectively engaged with a single gear, so the quality requirement on the planetary wheel component is particularly high, one of the three planetary wheel components is damaged, which can result in the electric capstan not working normally, and simultaneously, because of more gears, the time for searching damaged gears during maintenance can be long, which causes the problem of low working efficiency, meanwhile, the cycloid type pinwheel mechanism is also a common speed reducing mechanism, and has the characteristics of large speed reducing ratio, high transmission efficiency, small volume, light weight, few faults, long service life, stable and reliable operation, low noise, convenient assembly and disassembly, easy maintenance, simple structure, strong overload capacity, impact resistance, small inertia moment and the like, so that how to apply the cycloid type pinwheel mechanism to the electric capstan is an important problem which needs to be solved urgently by the electric capstan;

simultaneously current electric capstan brake subassembly adopts the friction of torsional spring and steel bushing to realize, the friction can generate heat, generate heat and can make the motor temperature rise, superpose motor self rotation again and produce the heat, generate heat and make motor power decline easily, burn out the motor even, have an operating handle (what have) that plays the separation and reunion effect above the current electric capstan simultaneously, the handle will be pulled out earlier when putting the rope, it is inconvenient to operate like this, can not put the rope fast, and easy damage moreover.

Disclosure of Invention

In view of the defects of the existing electric capstan, the technical problems to be solved by the invention are as follows: the electric winch is not easy to break down and convenient to overhaul; meanwhile, the electric winch also needs to have the effects of prolonging the service life of the motor and rapidly releasing the rope.

In order to achieve the above object, according to one aspect of the present invention, the present invention is achieved by the following technical measures: an electric winch comprising:

the two brackets are respectively a left bracket and a right bracket;

the two sides of the hoisting drum are fixed on the left bracket and the right bracket through sliding bearings;

the motor is fixed on the left bracket, and a main shaft of the motor penetrates through the left bracket and is positioned in the winding drum;

the reduction gearbox consists of a planetary mechanism and a cycloid type pinwheel mechanism, the planetary mechanism comprises an end cover, a sun gear, planet gears, a planet carrier and an output spline wheel, the opening on one side of the end cover is hollow, an inner gear ring is arranged on the inner peripheral wall of the end cover, the three planet gears are meshed with the inner gear ring and the sun gear, the sun gear is inserted into a sliding sleeve of the end cover, the three planet gears are fixed on the planet carrier, an output outer gear is fixed on the planet carrier, the end cover is fixed on an outer cylinder of the cycloid type pinwheel mechanism, and the output outer gear is fixed with an inner gear joint on an eccentric shaft in the cycloid type pinwheel mechanism;

the brake assembly is arranged in the hoisting drum, one side of the brake assembly is fixed with the motor spindle, the other side of the brake assembly penetrates out of the hoisting drum and penetrates through the cycloid type pinwheel mechanism to be connected with the sun wheel, meanwhile, the brake assembly drives the sun wheel to rotate after rotating, and the brake assembly can simultaneously drive the hoisting drum to rotate.

This electric capstan has made cycloid formula gear mechanism replace multiunit planetary gear through reasonable design, so not only improves life, changes also can convenience very after it damages, only remains a set of planetary gear simultaneously, also can confirm fast whether damaged when overhauing, just so can promote maintenance speed greatly.

Furthermore, the brake component comprises a multi-head nut I, a multi-head bolt I, a multi-head nut II and a multi-head bolt II,

the multi-head nut I is provided with a stepped central hole which is formed by three hole sections,

the multi-head bolt I is in threaded connection with the left outer side hole section, a transmission shaft I fixed with a motor spindle extends outwards from the left side of the multi-head bolt I,

the multi-head nut II is arranged on the right outer side hole section, the multi-head nut II and the multi-head nut I are fixed through screws, a bolt hole is further formed in the center of the multi-head nut II,

one side of the multi-head bolt II is screwed with a bolt hole of the multi-head nut II, the other side surface of the multi-head bolt II is smooth and is positioned on the outer side of the multi-head nut II, a steel sleeve in clearance fit is sleeved on the multi-head bolt II with a smooth surface, a one-way bearing is fixed on the outer side of the steel sleeve, a spline shaft is fixed on the outer side of the one-way bearing and is meshed with an internal spline arranged on the winding drum,

the opposite sides of the multi-head bolt I and the multi-head bolt II extend into a middle hole section of the multi-head nut I, nuts are screwed on the extending sides of the multi-head bolt I and the multi-head bolt II, the nuts are fixed after being screwed, the thread directions of the multi-head bolt I and the multi-head bolt II are opposite, and a transmission shaft II which can be inserted into the sun gear is fixed on the outer side of the multi-head bolt II without the nuts. After adopting above-mentioned structure because one-way bearing can not the reversal, the integral key shaft can not the reversal yet like this, reach stopping brake effect, can not generate heat when one-way bearing receives the reverse force in addition, can prolong the life of motor effectively like this, the steel bushing belongs to clearance fit with bull bolt II simultaneously, so steel bushing, integral key shaft, hoist section of thick bamboo do free circular motion around bull bolt II as a whole, can artificially easily stimulate the stay cord on the hoist section of thick bamboo like this, reach the effect of putting the rope fast.

Furthermore, transmission shaft I and transmission shaft II are hexagonal posts, and transmission shaft I and transmission shaft II are fastened by split circlip after inserting bull bolt I and bull bolt II respectively. The design structure is more reasonable.

Compared with the prior art, the invention has the advantages that: overall structure is more compact, and the installation maintenance is all comparatively convenient, has still prolonged the life of motor simultaneously to and reached the effect of putting the rope fast.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 is a schematic structural diagram of an electric winch according to the present invention.

FIG. 2 is a schematic structural diagram of a brake assembly according to the present invention.

Fig. 3 is a schematic structural diagram of a hoisting drum according to the present invention.

Fig. 4 is a schematic structural diagram of a cycloid type needle mechanism and a planetary mechanism according to the invention.

Description of reference numerals: 1. a motor; 2. a left bracket; 3. a hoisting drum; 4. a brake assembly; 5. a right bracket; 6. a reduction gearbox; 7. a transmission shaft I; 8. a split circlip; 9. a multi-head bolt I; 10. a nut; 11. a multi-head nut I; 12. a multi-head nut II; 13. a screw; 14. a multi-head bolt I; 15. steel jacket; 16. a spline shaft; 17. a one-way bearing; 18. a transmission shaft I; 19. a pulley; 20. an internal spline; 21. a cycloidal-type needle mechanism; 22. a planetary mechanism; 23. an end cap; 24. a planet carrier; 25. a planet wheel; 26. a sun gear; 27. and an output external gear.

Detailed Description

The invention will be described in detail hereinafter with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "bottom", "top", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

Example 1

Referring to fig. 1, the electric winch provided in this embodiment includes a motor 1, a left bracket 2, a winding drum 3, a brake assembly 4, a right bracket 5, and a reduction box 6.

Referring to fig. 2, the brake assembly 4 comprises a transmission shaft i 7, a multi-head bolt i 9, a multi-head nut i, two screw thread nuts 10, a multi-head nut ii 12, a multi-head bolt ii 14, two hexagon socket set screws 13, a steel sleeve 15, a one-way bearing 17, a spline shaft 16 and a transmission shaft ii 18, wherein the transmission shaft i 7 and the transmission shaft ii 18 are hexagonal rods, the hexagonal rods are matched with the hexagon socket holes of the multi-head bolt i 9 and the multi-head bolt ii 14 to transmit power, the transmission shaft i 7 and the transmission shaft ii 18 are respectively inserted into the multi-head bolt i 9 and the multi-head bolt ii 14 and then fastened by an open elastic check ring 8, the transmission shaft i 7 is connected with an output shaft of the motor 1 by a coupling head, the rightmost end of the transmission shaft ii 18 is connected with a hexagon socket hole of a sun gear 26 of a planetary mechanism 22 in the reduction box 6, a stepped central hole, the opposite sides of the multi-head bolt I9 and the multi-head bolt II 14 extend into the middle hole section of the multi-head nut I11, nuts 10 are respectively screwed on the extending sides of the multi-head bolt I9 and the multi-head bolt II 14, the nuts 10 are further fixed firmly by glue, the multi-head bolt I9 is a right-handed thread and the multi-head bolt II 14 is a left-handed thread as an optimal structure, the inner hexagonal set screw 13 is used for fixing the multi-head nut I11 and the multi-head nut II 12, the inner hole of the steel sleeve 15 is in clearance fit with the outer shaft of the multi-head bolt II 14, so that the steel sleeve can freely rotate under an unstressed state to achieve the effect of quickly releasing a rope, the spline shaft 16 is preferably provided with 18-tooth-number external splines, the inner hole is a group of stepped holes and is used for fixing the one-way bearing 17, and the.

Referring to fig. 3, the left and right sides of the winding drum 3 are fixed on the left bracket 2 and the right bracket 5 through pulleys 19, the right side of the winding drum 3 is fixed with an internal spline 20 which is engaged with a spline shaft 16 of the brake assembly 4, the winding drum 3 is hollow, and the brake assembly 4 is located in the winding drum 3.

Referring to fig. 4, the reduction box 6 comprises a set of planetary mechanism 22 and a set of cycloid type gear mechanism 21, the planetary mechanism 22 comprises a sun gear 26, three planetary gears 25, a planet carrier 24 and an end cover 23, a counter bore is formed in the center of the sun gear 26, the counter bore is hexagonal, and is connected with an external hexagonal transmission shaft ii 18 to transmit power, the inner peripheral wall of the end cover 23 is an inner gear ring and is used for fixing the planetary mechanism 22 and the cycloid type gear mechanism 21, the three planetary gears 25 are meshed with the inner gear ring and the sun gear 26, the sun gear 26 is fixed in the center of the end cover 23, an output outer gear 27 is arranged in the center of the planet carrier 24, and the output outer gear 27 is meshed with an inner spline of an inner gear joint at the input end of.

The electric capstan provided by the embodiment is characterized in that a motor drives a transmission shaft I to rotate anticlockwise, a multi-head bolt I is screwed out from a multi-head nut I at the moment, and because the multi-head bolt I is in rigid connection with a motor connecting head, the multi-head nut I can move forwards rightwards until the multi-head nut I touches a nut of a multi-head thread I, and a spline shaft moves forwards rightwards to be meshed with an internal spline of an output disc at the moment to prepare for power connection; meanwhile, the transmission shaft II with the shape of an outer hexagonal rod also synchronously moves forwards rightwards and extends into an inner hexagonal counter bore of the sun wheel of the planet wheel component to be ready for power connection.

Transmission shaft I drives I continuation of multi-head bolt anticlockwise and rotates, multi-head bolt I drives multi-head nut I and rotates, multi-head nut I drives multi-head nut II through hexagon socket head holding screw and rotates, multi-head nut II drives transmission shaft II and rotates, transmission shaft II drives the sun gear and rotates, the sun gear drives the planet wheel, the planet wheel rotates with the planet carrier together, output external gear on the planet carrier rotates with the internal spline meshing of the internal tooth joint in the cycloid formula pin wheel mechanism, this moment the reduction ratio reaches 1 behind the planet wheel subassembly: 8.5, when power passes to cycloid formula pin wheel mechanism, the eccentric wheel rotates a week, and the external gear rotates one tooth in opposite direction (according to cycloid pin wheel speed reduction principle), and the external gear drives the output disc and makes the rotation that slows down, and the reduction ratio of cycloid formula pin wheel mechanism reaches 1 this moment: 35. the internal spline of the output disc drives the internal spline of the hoisting drum to rotate through the spline shaft of the brake assembly, so that the hoisting drum is driven to rotate, and after twice speed reduction, the total speed reduction ratio of the electric winch disclosed by the invention reaches 1: 297.5, because the advantage of cycloid formula pin wheel mechanism is that drive ratio is big, compact structure, efficient, operate steadily and longe-lived, and this part is current common article, so not only improves life, if it damages the back change also can be very convenient, a set of planetary gear simultaneously also can confirm fast when overhauing whether damaged, just so can promote maintenance speed greatly.

Meanwhile, the brake component can enable the electric winch to work and bear force and have a stopping brake effect, the electric winch works normally (rotates anticlockwise), and the electric winch works normally after being transmitted to the winch drum pulling rope through the reduction gearbox. If the electric capstan has abnormal condition stop rotation, because the rope of the winding drum is under the stress state, power is transmitted in reverse direction, make multiheaded nut II and multiheaded bolt II tightly clip the steel bushing, make the steel bushing unable to rotate, and because the integral key shaft is installed on one-way bearing, it can not rotate in reverse direction to the characteristic decision of one-way bearing, so the integral key shaft can only rotate towards one direction, after the electric capstan has abnormal condition stop rotation, the integral key shaft (because one-way bearing can not reverse) can not reverse either, reach the stopping brake effect, and can not generate heat when one-way bearing receives the reverse force (the characteristic decision of one-way bearing), can lengthen the life of the motor effectively like this.

When the rope releasing button is pressed down, the motor rotates clockwise, the multi-head bolt I is screwed into the multi-head nut I, the spline shaft is pulled back to the initial state leftwards, and the spline shaft is disengaged from the power of the output disc at the moment. The set screw on the multi-head nut I rotates clockwise to impact the groove of the multi-head nut II, so that the left-handed thread multi-head nut II is separated from the steel sleeve, and the steel sleeve and the multi-head bolt II belong to clearance fit, so that the steel sleeve, the spline shaft and the winch cylinder can perform free circular motion around the multi-head bolt II as a whole, and thus the pull rope on the winch cylinder can be pulled manually and easily to achieve the effect of quickly releasing the rope.

In conclusion, the invention solves the defects of low efficiency, easy heating and burning of the motor and inconvenient operation of the traditional electric effect disc, realizes the high-efficiency transmission of the electric capstan and improves the convenience of operation.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various changes and modifications may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.