阅读说明：本技术 离合器及舵机 (Clutch and steering engine ) 是由 莫日新 刘辉华 于 2021-07-20 设计创作，主要内容包括：本发明的离合器及舵机,该离合器包括轴套及离合组。由于每一离合对均包括调节件、胶块、块体和钢珠,利用胶块代替现有离合器结构中的弹簧,无需通过改变弹簧的圈数来调整离合器的离合力,使得离合器在径向方向的体积能够大大缩小；由于滑道内具有内螺纹,而调节件上具有与内螺纹相互配合的外螺纹,可以根据调节件在滑道内的螺合深度来调整离合器的离合力,进而来适配不同场合下的工况,提高离合器的兼容性。(The clutch comprises a shaft sleeve and a clutch group. Because each clutch pair comprises the adjusting piece, the rubber block, the block body and the steel ball, the rubber block is used for replacing a spring in the existing clutch structure, the clutch force of the clutch is not required to be adjusted by changing the number of turns of the spring, and the volume of the clutch in the radial direction can be greatly reduced; because the inner thread is arranged in the slideway, and the outer thread matched with the inner thread is arranged on the adjusting piece, the clutch force of the clutch can be adjusted according to the screwing depth of the adjusting piece in the slideway, so that the clutch can be adapted to working conditions in different occasions, and the compatibility of the clutch is improved.)

1. A clutch, comprising:

the top of the shaft sleeve is provided with an output shaft, a cavity is formed in the shaft sleeve, a plurality of slide ways are formed in the side wall of the shaft sleeve, each slide way is communicated with the cavity, and an internal thread is formed in each slide way; and

the clutch group comprises a plurality of clutch pairs, each clutch pair is located in each slideway in a one-to-one correspondence mode, each clutch pair comprises an adjusting piece, a rubber block, a block body and a steel ball, the adjusting piece is provided with an external thread, the adjusting piece is screwed in the slideways, one end of the rubber block is connected with the block body, and the steel ball is connected with the block body.

2. The clutch of claim 1, wherein the rubber blocks are high-force rubber blocks.

3. The clutch of claim 1, wherein a slot is formed in the adjusting member at a location away from the rubber block.

4. A steering engine is characterized by comprising the clutch of any one of claims 1-3 and further comprising a power module, wherein the power module is provided with a power shaft, a plurality of grooves are formed in the end portion of the power shaft, the end portion of the power shaft penetrates through the shaft sleeve and is located in the cavity, and each steel ball corresponds to each groove in a one-to-one mode and is in close contact with the groove.

5. The steering engine of claim 4, wherein the power module comprises a housing, a motor and a transmission gear set, the motor is mounted in the housing, and the transmission gear set is in transmission connection with a driving shaft of the motor and the power shaft respectively.

6. The steering engine of claim 5, wherein the power module further comprises a bearing, the bearing is mounted in the housing, a plurality of balls are disposed in the bearing, and each ball is in contact with the power shaft.

7. The steering engine of claim 6, wherein the power module further comprises a protective sleeve, the protective sleeve is mounted on the housing, the clutch is located in the protective sleeve, and an output shaft of the clutch is exposed outside the protective sleeve.

Technical Field

The invention relates to the technical field of clutching, in particular to a clutch and a steering engine.

Background

The clutch is a separating device between an automobile engine and a gearbox, the clutch is also called a clutch, and the clutch of the automatic transmission automobile is combined with the gearbox to realize automatic speed change. As time goes on, the technology of the clutch is also continuously developed, the clutch is not simply applied to the field of power automobiles, and the clutch is widely applied to various fields, such as the field of steering engines, due to the unique advantages of the clutch. When the clutch is applied to the steering engine, the clutch and the main shaft are separated from each other when an external device connected with the main shaft of the steering engine is in an overload state, so that the main shaft is in an idle state, and the steering engine is prevented from being damaged by an internal gear or a motor due to overload of the external device.

However, the existing clutch has the following defects:

1. the existing clutch structure is formed by combining two structural parts, namely a spring and a steel ball, wherein the steel ball is clamped with a main shaft by the acting force exerted on the steel ball by the spring; and the two face gears are clamped with the variable speed chain by the acting force exerted on the body by the spring. The clutch force of the two conventional clutches is closely related to the number of turns of the spring, and if the number of turns of the spring is designed to be excessive, the volume of the clutch in the radial direction or the axial direction can be greatly increased, namely the existing clutch is not compact in structure;

2. the clutch force of the existing clutch structure can not be adjusted according to the actual working condition, so that the compatibility of the clutch is greatly reduced.

Disclosure of Invention

The invention aims to overcome the defects in the prior art and provides a clutch and a steering engine which are simple and compact in structure, small in size and capable of flexibly adjusting the clutch force according to the actual working condition.

The purpose of the invention is realized by the following technical scheme:

a first aspect of the present application provides a clutch comprising:

the top of the shaft sleeve is provided with an output shaft, a cavity is formed in the shaft sleeve, a plurality of slide ways are formed in the side wall of the shaft sleeve, each slide way is communicated with the cavity, and an internal thread is formed in each slide way; and

the clutch group comprises a plurality of clutch pairs, each clutch pair is located in each slideway in a one-to-one correspondence mode, each clutch pair comprises an adjusting piece, a rubber block, a block body and a steel ball, the adjusting piece is provided with an external thread, the adjusting piece is screwed in the slideways, one end of the rubber block is connected with the block body, and the steel ball is connected with the block body.

Preferably, the rubber block is a high-strength rubber block.

Preferably, a clamping groove is formed in the position, far away from the rubber block, of the adjusting piece.

The second aspect of this application provides a steering wheel, include as above the clutch, still include the power module, the power module has the power shaft, a plurality of recesses have been seted up on the tip of power shaft, the tip of power shaft is worn to establish the axle sleeve is located in the cavity, each steel ball one-to-one with each recess in close contact with.

Preferably, the power module comprises a shell, a motor and a transmission gear set, the motor is installed in the shell, and the transmission gear set is in transmission connection with a driving shaft of the motor and the power shaft respectively.

Preferably, the power module further comprises a bearing, the bearing is installed in the housing, a plurality of balls are arranged in the bearing, and each ball is in contact with the power shaft.

Preferably, the power module further comprises a protective sleeve, the protective sleeve is mounted on the shell, the clutch is located in the protective sleeve, and the output shaft of the clutch is exposed outside the protective sleeve.

Compared with the prior art, the invention has the following advantages and beneficial effects:

1. because each separation and reunion is all including regulating part, gluey piece, block and steel ball, utilizes gluey piece to replace the spring in the existing clutch structure, need not to adjust the separation and reunion power of clutch through the number of turns that changes the spring for the clutch can dwindle greatly in radial direction's volume.

2. Because the inner thread is arranged in the slideway, and the outer thread matched with the inner thread is arranged on the adjusting piece, the clutch force of the clutch can be adjusted according to the screwing depth of the adjusting piece in the slideway, so that the working conditions of different application occasions are adapted, and the compatibility of the clutch is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic diagram of a clutch according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of the internal structure of a clutch according to an embodiment of the present invention;

fig. 3 is a schematic internal structural view of a steering engine according to an embodiment of the present invention.

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 3 shows a steering engine 10 according to an embodiment of the present application, which is used for outputting power to drive an external device to move and rotate, where the steering engine 10 includes a power module 100 and a clutch 200. The power module 100 is a power output module of the steering engine 10 and is used for outputting power. The clutch 200 serves to protect the power module 100 and prevent the power module 100 from being damaged in a state where an external device is overloaded.

Fig. 1, 2 and 3 show a power module 100 and a clutch 200 according to an embodiment of the present application, in which the power module 100 has a power shaft 100a, and a plurality of grooves 100a-1 are formed on an end of the power shaft 100 a. The clutch 200 comprises a shaft sleeve 210 and a clutch group 220, wherein an output shaft 211 is arranged at the top of the shaft sleeve 210, a cavity 212 is formed in the shaft sleeve 210, a plurality of slide ways 213 are formed in the side wall of the shaft sleeve 210, each slide way 213 is communicated with the cavity 212, an internal thread is formed in each slide way 213, the clutch group 220 comprises a plurality of clutch pairs 221, each clutch pair 221 is correspondingly positioned in each slide way 213 one by one, each clutch pair 221 comprises an adjusting piece 2211, a rubber block 2212, a block 2213 and steel balls 2214, the adjusting piece 2211 is provided with an external thread, the adjusting piece 2211 is screwed in the slide way 213, one end of the rubber block 2212 is connected with the block 2213, the steel balls 2214 are connected with the block 2213, the end part of the power shaft 100a penetrates through the shaft sleeve 210 and is positioned in the cavity 212, and each steel ball 2214 is correspondingly in close contact with each groove 100 a-1.

As described above, the power shaft 100a is used to connect the clutch 200, and when the power shaft 100a rotates, the clutch 200 also rotates along with the power shaft 100 a. An output shaft 211 of the shaft sleeve 210 is a component for connecting an external device, and the steering engine 10 drives the external device to move through the output shaft 211. When the external device is in a normal state, that is, the output shaft 211 is in a forward rotation state, the rubber block 2212 has elastic deformation capacity, the rubber block 2212 applies an elastic force to the steel ball 2214, and the steel ball 2214 is in close contact with the groove 100a-1 formed in the power shaft 100a under the action of the elastic force, so that the clutch 200 can follow the power shaft 100a to rotate forward under the action of the action force output by the power module 100. When the external device is in an overload state, the overload state is that the clutch 200 rotates reversely under the action of external force, at this time, the steel ball 2214 in close contact with the groove 100a-1 is separated from the groove 100a-1, that is, the power shaft 100a idles, so that the power shaft 100a is prevented from rotating reversely from the normal rotation under the condition of external force, and the internal structure of the power module 100 is further prevented from being damaged. When the external device returns to a normal state from an overload state, under the elastic acting force provided by the rubber block 2212, the steel ball 2214 is in close contact with the groove 100a-1 again, the protection effect of the clutch 200 is completed at the moment, and the steering engine 10 is prevented from being damaged when the external device is in the overload state.

It should be emphasized that, traditional clutch structure is including the spring, and the separation and reunion power of clutch structure is relevant with the number of turns of spring, nevertheless if the number of turns of spring is more, inevitable, and clutch structure is great in the ascending volume of radial direction, lets inside traditional clutch structure can't assemble the comparatively narrow and small steering wheel of inner space. However, for the clutch 200 of the present application, each clutch pair 221 includes the adjusting element 2211, the rubber block 2212, the block 2213 and the steel ball 2214, the rubber block 2212 is used to replace a spring in the existing clutch structure, and the clutch force of the clutch 200 is not required to be adjusted by designing the number of turns of the spring, so that the volume of the clutch 200 in the radial direction can be greatly reduced, that is, the clutch 200 of the present application can be assembled inside the steering engine 10 with a narrow inner space.

It is further emphasized that the clutch force of the conventional clutch structure cannot be adjusted according to the actual working condition, which results in low compatibility of the conventional clutch structure. The clutch 200 of this application is through having the internal thread in slide 213, has the external screw thread of mutually supporting with the internal thread on the regulating part 2211, in regulating part 2211 is the spiro union in slide 213 promptly, the user can be through changing the spiral shell and close the degree of depth to adjust clutch 200's separation and reunion power, and then come the operating mode under the adaptation different situation, improve clutch 200's compatibility greatly.

Fig. 2 and 3 illustrate a glue block 2212 in an embodiment of the present application, where the glue block 2212 is a high-strength glue block. So, it should be noted that, adopt the rubber block 2212 of dominant force glue material preparation, can let rubber block 2212 possess stronger elastic property to let clutch 200's clutching performance more stable, and then more can protect steering wheel 10's inner structure, prevent that steering wheel 10 from damaging under the state of external device overload.

Fig. 2 shows an adjusting member 2211 according to an embodiment of the present application, and a slot 2211a is formed on the adjusting member 2211 at a position far away from the glue block 2212. Thus, the provision of the locking slot 2211a makes it easier for the user to rotate the adjustment member 2211, thereby making it easier to change the screwing depth of the adjustment member 2211 and completing the adjustment of the clutch force of the clutch 200.

Fig. 3 shows a power module 200 according to an embodiment of the present application, where the power module 100 includes a housing 110, a motor installed in the housing 110, and a transmission gear set in transmission connection with a driving shaft of the motor and a power shaft 100a, respectively. Therefore, it should be noted that the casing 110 plays a role in protection to prevent damage to internal structural components of the steering engine 10, and certainly, a layer of sealing ring can be further arranged inside the casing 110 to play a role in water prevention to prevent conductive media such as external water drops from entering the steering engine 10 to cause short circuit damage. The motor is a power core component of the power module 200, and the motor can output power to drive the transmission gear set to rotate, so as to drive the power shaft 100a to rotate, and the power can be output to an external device through the output shaft 211, thereby completing the movement of the external driving device.

Fig. 3 shows the power module 100 according to an embodiment of the present application, where the power module 100 further includes a bearing 120, the bearing 120 is installed in the housing 110, a plurality of balls 121 are disposed in the bearing 120, and each ball 121 contacts the power shaft 100 a. Therefore, it should be noted that the bearing 120 is provided with the balls 121, and the balls 121 are in rolling contact with the power shaft 100a, so that the power shaft 100a can rotate more stably and quickly, and the driving performance of the steering engine 10 is improved.

Fig. 3 shows the power module 100 according to an embodiment of the present application, where the power module 100 further includes a protective cover 130, the protective cover 130 is mounted on the housing 110, the clutch 200 is located in the protective cover 130, and the output shaft 211 of the clutch 200 is exposed outside the protective cover 130. Therefore, it should be noted that the protective sleeve 130 plays a role in protecting the clutch 200, preventing the clutch 200 from being damaged by external acting force, and improving the safety performance of the steering engine 10.

Of course, the clutch 200 of the present application can also be applied to other fields besides the steering engine, for example, in a reduction gearbox, and also belongs to the protection scope of the present application.

The above embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.