CN204493488U - Coupling - Google Patents
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- CN204493488U CN204493488U CN201520151485.4U CN201520151485U CN204493488U CN 204493488 U CN204493488 U CN 204493488U CN 201520151485 U CN201520151485 U CN 201520151485U CN 204493488 U CN204493488 U CN 204493488U
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- 230000008878 coupling Effects 0.000 title claims abstract description 26
- 238000010168 coupling process Methods 0.000 title claims abstract description 26
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 23
- 230000003993 interaction Effects 0.000 claims abstract description 4
- 238000003032 molecular docking Methods 0.000 claims description 2
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- 230000036316 preload Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
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- 239000003638 chemical reducing agent Substances 0.000 description 1
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Abstract
本实用新型公开了一种联轴器，用于传递扭矩，包括第一轴体、与第一轴体同轴设置的第二轴体，其特征在于，还包括用于使第一轴体和第二轴体以一定预紧力保持对接的第一弹簧；第一轴体和第二轴体之间通过锥齿传动；其中：当第一轴体和第二轴体之间的相互作用力的轴向分力大于预紧力时，第一轴体和第二轴体分离而形成错齿。本实用新型的联轴器的第一轴体和第二轴体通过锥齿传动，并通过第一弹簧以一定预紧力对接，当因传递扭矩过大而驱动装置无法提供足够扭矩时(即：驱动装置处于过载状态)，第一轴体和第二轴体在轴向分离的作用下分离而形成错齿，从而使驱动装置的驱动轴与负载的从动轴脱开以实现过载保护。
The utility model discloses a shaft coupling for transmitting torque, which comprises a first shaft body and a second shaft body arranged coaxially with the first shaft body. The second shaft maintains the butt first spring with a certain pre-tightening force; the first shaft and the second shaft are driven by bevel gears; wherein: when the interaction force between the first shaft and the second shaft When the axial component force is greater than the pre-tightening force, the first shaft body and the second shaft body separate to form staggered teeth. The first shaft body and the second shaft body of the shaft coupling of the utility model are driven by bevel gears, and connected with a certain pre-tightening force by the first spring, when the driving device cannot provide sufficient torque due to excessive transmission torque (ie : the driving device is in an overload state), the first shaft body and the second shaft body are separated under the action of axial separation to form staggered teeth, so that the driving shaft of the driving device is disengaged from the driven shaft of the load to achieve overload protection.
Description
技术领域technical field
本实用新型涉及机械传动领域，尤其涉及一种联轴器。The utility model relates to the field of mechanical transmission, in particular to a shaft coupling.
背景技术Background technique
联轴器是机械设备(包括固定设备和移动设备)的传动系统中的重要部件，其通常连接在驱动装置的驱动轴与负载(或者从动装置)的从动轴之间，用于将驱动装置的扭矩传递给负载，以使负载实现某种功能。驱动装置在驱动负载时经常会出现以下情况：当驱动装置所输出的最大扭矩仍无法驱动负载时，驱动装置的驱动轴便会停止转动，此时驱动装置处于过载状态。例如，当电动机(驱动装置)所输出的最大扭矩无法驱动减速机(从动装置)时，电动机的驱动轴会停止转动。驱动装置的过载状态对于其使用性能和使用寿命产生很大的负面影响。例如，电动机处于过载状态时会发热甚至会烧毁。Coupling is an important part in the transmission system of mechanical equipment (including fixed equipment and mobile equipment), which is usually connected between the driving shaft of the driving device and the driven shaft of the load (or driven device) for the drive The torque of the device is transmitted to the load to make the load perform a certain function. When the driving device drives the load, the following situations often occur: when the maximum torque output by the driving device is still unable to drive the load, the drive shaft of the driving device will stop rotating, and the driving device is in an overload state at this time. For example, when the maximum torque output by the motor (driver) cannot drive the reducer (driven device), the drive shaft of the motor will stop rotating. An overloaded state of a drive has a considerable negative effect on its performance and service life. For example, when the motor is overloaded, it will heat up and even burn out.
然而现有技术中的大多数的联轴器并没有对驱动装置的过载保护功能或者过载保护的效果较差。However, most of the couplings in the prior art do not have the overload protection function of the driving device or the effect of overload protection is relatively poor.
实用新型内容Utility model content
针对现有技术中存在的上述技术问题，本实用新型提供了一种连接在驱动装置的驱动轴与负载的从动轴之间的联轴器，该联轴器能够对驱动装置起到很好的过载保护作用。Aiming at the above-mentioned technical problems in the prior art, the utility model provides a coupling connected between the driving shaft of the driving device and the driven shaft of the load, which can play a good role in the driving device of overload protection.
为解决上述技术问题，本实用新型采用的技术方案是：In order to solve the problems of the technologies described above, the technical solution adopted in the utility model is:
一种联轴器，用于传递扭矩，包括第一轴体、与所述第一轴体同轴设置的第二轴体，还包括用于使所述第一轴体和所述第二轴体以一定预紧力保持对接的第一弹簧；所述第一轴体和所述第二轴体之间通过锥齿传动；其中：当所述第一轴体和所述第二轴体之间的相互作用力的轴向分力大于所述预紧力时，所述第一轴体和所述第二轴体分离而形成错齿。A shaft coupling for transmitting torque, comprising a first shaft body, a second shaft body coaxially arranged with the first shaft body, and a shaft coupling for connecting the first shaft body and the second shaft body body with a certain pre-tightening force to keep the butt first spring; between the first shaft body and the second shaft body through bevel gear transmission; wherein: when the first shaft body and the second shaft body When the axial component force of the interaction force between them is greater than the pre-tightening force, the first shaft body and the second shaft body are separated to form staggered teeth.
优选地，所述第一轴体的对接端固定有锥齿轮，所述第二轴体的对接端固定有用于与所述锥齿轮啮合的锥齿圈。Preferably, a bevel gear is fixed at the butt end of the first shaft, and a bevel gear for meshing with the bevel gear is fixed at the butt end of the second shaft.
优选地，还包括套设在所述第一轴体上的座套，所述座套的内孔形成有朝向所述第二轴体的第一台阶面，所述第一轴体形成有与所述第一台阶面相对的第二台阶面，所述第一弹簧套设在所述第一轴套上，且两端分别抵顶于所述第一台阶面和所述第二台阶面上。Preferably, it also includes a seat cover sleeved on the first shaft body, the inner hole of the seat cover is formed with a first stepped surface facing the second shaft body, and the first shaft body is formed with a On the second stepped surface opposite to the first stepped surface, the first spring is sleeved on the first bushing, and the two ends respectively abut against the first stepped surface and the second stepped surface .
优选地，还包括调整螺母，所述调整螺母形成有同轴的第一孔和第二孔，所述第二孔为光孔，所述第一孔远离所述第二孔的一端设置内螺纹，所述第二孔的直径小于所述第一孔的直径而形成第三台阶面；所述调整螺母通过所述内螺纹连接在所述座套上，并通过所述第二孔套设在所述第二轴体上；所述第二轴体形成有与所述第三台阶面相对的第四台阶面，所述第三台阶面与所述第四台阶面之间的所述第二轴体上还套设有端面轴承。Preferably, an adjustment nut is also included, the adjustment nut is formed with a coaxial first hole and a second hole, the second hole is a light hole, and the end of the first hole away from the second hole is provided with an internal thread, so The diameter of the second hole is smaller than the diameter of the first hole to form a third stepped surface; the adjusting nut is connected to the seat sleeve through the internal thread, and is set on the seat sleeve through the second hole. On the second shaft body; the second shaft body is formed with a fourth stepped surface opposite to the third stepped surface, and the second shaft body between the third stepped surface and the fourth stepped surface It is also sleeved with end bearings.
优选地，所述第二轴体上还固定套接有传动套，所述传动套与所述调整螺母之间的所述第二轴体上还套设有第二弹簧。Preferably, a transmission sleeve is fixedly sleeved on the second shaft, and a second spring is sleeved on the second shaft between the transmission sleeve and the adjusting nut.
优选地，所述传动套的周壁上还开设有径向贯通且轴向延伸的长圆孔，所述第二轴体穿设有传动销，所述传动销的两端通过所述长圆孔伸出所述传动套外。Preferably, a radially penetrating and axially extending oblong hole is opened on the peripheral wall of the transmission sleeve, a transmission pin is pierced through the second shaft body, and both ends of the transmission pin protrude through the oblong hole The drive sleeve is outside.
优选地，所述第一弹簧为碟形弹簧。Preferably, the first spring is a disc spring.
与现有技术相比，本实用新型的联轴器的有益效果是：本实用新型的联轴器的第一轴体和第二轴体通过锥齿传动，并通过第一弹簧以一定预紧力对接，当因传递扭矩过大而驱动装置无法提供足够扭矩时(即：驱动装置处于过载状态)，第一轴体和第二轴体在轴向分离的作用下分离而形成错齿，从而使驱动装置的驱动轴与负载的从动轴脱开以实现过载保护。Compared with the prior art, the beneficial effect of the coupling of the utility model is that the first shaft and the second shaft of the coupling of the utility model are driven by bevel gears, and are preloaded by the first spring to a certain extent. Force docking, when the driving device cannot provide enough torque due to excessive transmission torque (that is, the driving device is in an overload state), the first shaft body and the second shaft body are separated under the action of axial separation to form staggered teeth, thus Disengage the drive shaft of the drive from the driven shaft of the load for overload protection.
附图说明Description of drawings
图1为本实用新型的联轴器的结构示意图。Fig. 1 is a structural schematic diagram of a shaft coupling of the present invention.
图中：In the picture:
10-第一轴体；11-锥齿轮；12-第二台阶面；20-第二轴体；21-锥齿圈；22-第四台阶面；30-第一弹簧；40-座套；41-第一台阶面；50-调整螺母；51-第三台阶面；60-第二弹簧；70-传动套；80-传动销。10-first shaft; 11-bevel gear; 12-second step surface; 20-second shaft; 21-bevel gear; 22-fourth step surface; 30-first spring; 40-seat cover; 41-first stepped surface; 50-adjusting nut; 51-third stepped surface; 60-second spring; 70-transmission sleeve; 80-transmission pin.
具体实施方式Detailed ways
为使本领域技术人员更好的理解本实用新型的技术方案，下面结合附图和具体实施方式对本实用新型作详细说明。In order to enable those skilled in the art to better understand the technical solution of the utility model, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
如图1所示，本实用新型的实施例公开了一种联轴器，连接在驱动装置的驱动轴与负载(或者从动装置)的从动轴之间，用于将驱动装置所输出的扭矩传递给负载。该联轴器包括第一轴体10、第二轴体20以及第一弹簧30。第一轴体10和第二轴体20同轴设置，且第一轴体10和第二轴体20通过锥齿传动，第一弹簧30使第一轴体10和第二轴体20以一定预紧力保持对接并啮合。如此，由于第一轴体10和第二轴体20通过锥齿传动，当第一轴体10和第二轴体20传递扭矩时，第一轴体10和第二轴体20之间产生相互作用力，该作用力能够分解成两个分力，其中一个分力为周向上的力，该分力用于传递扭矩，另一个分力为轴向上的力，若传递扭矩过大时，该轴向上的分力会使得第一轴体10和第二轴体20分离，从而使第一轴体10和第二轴体20形成错齿。由于第一轴体10和第二轴体20形成错齿，驱动装置的驱动轴与负载的从动轴脱开从而实现对驱动装置的过载保护。As shown in Figure 1, the embodiment of the utility model discloses a shaft coupling, which is connected between the driving shaft of the driving device and the driven shaft of the load (or driven device), and is used to output the output of the driving device Torque is transmitted to the load. The coupling includes a first shaft body 10 , a second shaft body 20 and a first spring 30 . The first shaft body 10 and the second shaft body 20 are arranged coaxially, and the first shaft body 10 and the second shaft body 20 are driven by bevel gears, and the first spring body 30 makes the first shaft body 10 and the second shaft body 20 move at a certain speed. Preload stays docked and engaged. In this way, since the first shaft body 10 and the second shaft body 20 are driven by bevel gears, when the first shaft body 10 and the second shaft body 20 transmit torque, there will be mutual interaction between the first shaft body 10 and the second shaft body 20 . Force, which can be decomposed into two components, one of which is the force in the circumferential direction, which is used to transmit torque, and the other component is the force in the axial direction. If the transmission torque is too large, The axial component force will cause the first shaft body 10 and the second shaft body 20 to separate, so that the first shaft body 10 and the second shaft body 20 form staggered teeth. Since the first shaft body 10 and the second shaft body 20 form staggered teeth, the driving shaft of the driving device is disengaged from the driven shaft of the load so as to achieve overload protection for the driving device.
本实用新型的联轴器具有对驱动装置过载保护的功能，能够有效防止驱动装置损坏或者寿命降低。The shaft coupling of the utility model has the function of overload protection for the driving device, and can effectively prevent the driving device from being damaged or its service life reduced.
形成锥齿传动的锥齿可以在第一轴体10和第二轴体20上直接开设，当然也可以预先加工，然后固定在第一轴体10和第二轴体20上。在本实用新型的一个优选实施例中，如图1所示，第一轴体10的对接端通过焊接的方式固定有锥齿轮11，第二轴体20的对接端通过焊接方式固定有用于与锥齿轮11啮合的锥齿圈21。该锥齿轮11和锥齿圈21为预先加工零件。The bevel gears forming the bevel gear transmission can be directly provided on the first shaft body 10 and the second shaft body 20 , of course, they can also be pre-processed and then fixed on the first shaft body 10 and the second shaft body 20 . In a preferred embodiment of the present utility model, as shown in Figure 1, the butt end of the first shaft body 10 is fixed with a bevel gear 11 by welding, and the butt end of the second shaft body 20 is fixed with a The bevel gear 11 meshes with the bevel gear 21. The bevel gear 11 and the bevel gear 21 are pre-processed parts.
第一弹簧30可以通过拉伸使第一轴体10和第二轴体20保持一定预紧力，也可以通过压缩使第一轴体10和第二轴体20保持一定预紧力，并且第一弹簧30可以设置在第一轴体10上，或者设置在第二轴体20上，或者设置在第一轴体10和第二轴体20之间。在本实用新型的一个优选实施例中，如图1所示，在第一轴体10上套设有一个座套40，座套40的内孔形成有朝向第二轴体20的第一台阶面41，第一轴体10形成有与第一台阶面41相对的第二台阶面12，第一弹簧30套设在第一轴套上，并位于第一台阶面41和第二台阶面12之间。如此，第一弹簧30在第一台阶面41和第二台阶面12的作用下压缩使第一轴体10和第二轴体20保持一定预紧力。本实施例中，第一弹簧30为碟形弹簧。The first spring 30 can keep the first shaft body 10 and the second shaft body 20 with a certain pre-tightening force by stretching, and can also keep the first shaft body 10 and the second shaft body 20 at a certain pre-tightening force through compression, and the first A spring 30 can be set on the first shaft body 10 , or on the second shaft body 20 , or between the first shaft body 10 and the second shaft body 20 . In a preferred embodiment of the present utility model, as shown in FIG. 1 , a seat cover 40 is sleeved on the first shaft body 10 , and the inner hole of the seat cover 40 is formed with a first step facing the second shaft body 20 surface 41, the first shaft body 10 is formed with a second stepped surface 12 opposite to the first stepped surface 41, the first spring 30 is sleeved on the first sleeve, and is located between the first stepped surface 41 and the second stepped surface 12 between. In this way, the first spring 30 is compressed under the action of the first stepped surface 41 and the second stepped surface 12 so that the first shaft body 10 and the second shaft body 20 maintain a certain pretightening force. In this embodiment, the first spring 30 is a disc spring.
实际上，第一轴体10与第二轴体20之间所能传递的最大扭矩(该最大扭矩为不会造成第一轴体10和第二轴体20形成错齿的最大扭矩)由第一弹簧30所提供的预紧力限定。为能够调节第一弹簧30的预紧力，在本实用新型的一个优选实施例中，如图1所示，联轴器还包括调整螺母50，调整螺母50形成有同轴的第一孔和第二孔，第二孔为光孔，第一孔远离第二孔的一端设置内螺纹，且第二孔的直径小于第一孔的直径而形成第三台阶面51；调整螺母50通过内螺纹套设在座套40上，并通过第二孔套设在第二轴体20上；第二轴体20形成有与第三台阶面51相对的第四台阶面22，第三台阶面51与第四台阶面22之间的第二轴体20上还套设有端面轴承。如此，通过调节调整螺母50来调整第一弹簧30的压缩量，进而调整预紧力的大小，从而控制第一轴体10与第二轴体20之间所能传递的最大扭矩。In fact, the maximum torque that can be transmitted between the first shaft body 10 and the second shaft body 20 (the maximum torque is the maximum torque that will not cause the first shaft body 10 and the second shaft body 20 to form staggered teeth) is determined by the first shaft body 10 and the second shaft body 20. The preload provided by a spring 30 is limited. In order to be able to adjust the preload of the first spring 30, in a preferred embodiment of the present invention, as shown in Figure 1, the coupling further includes an adjustment nut 50, the adjustment nut 50 is formed with a coaxial first hole and The second hole, the second hole is a light hole, the end of the first hole away from the second hole is provided with an internal thread, and the diameter of the second hole is smaller than the diameter of the first hole to form a third stepped surface 51; the adjustment nut 50 is sleeved through the internal thread On the seat cover 40, and set on the second shaft body 20 through the second hole; the second shaft body 20 is formed with a fourth step surface 22 opposite to the third step surface 51, and the third step surface 51 is connected to the fourth step surface. End bearings are sheathed on the second shaft body 20 between the stepped surfaces 22 . In this way, the compression amount of the first spring 30 is adjusted by adjusting the adjusting nut 50 , and then the magnitude of the pre-tightening force is adjusted, thereby controlling the maximum torque that can be transmitted between the first shaft body 10 and the second shaft body 20 .
在本实用新型的一个优选实施例中，如图1所示，第二轴体20上还固定套接有传动套70，传动套70与调整螺母50之间的第二轴体20上还套设有第二弹簧60，该第二弹簧60用于顶紧调整螺母50以防止调整螺母50自由转动。In a preferred embodiment of the present utility model, as shown in FIG. 1 , a transmission sleeve 70 is fixedly sleeved on the second shaft body 20 , and the second shaft body 20 between the transmission sleeve 70 and the adjustment nut 50 is also sleeved on the second shaft body 20 . A second spring 60 is provided, and the second spring 60 is used to tighten the adjusting nut 50 to prevent the adjusting nut 50 from rotating freely.
为给驱动轴或从动轴预留一定的轴向窜动量，传动套70的周壁上还开设有径向贯通且轴向延伸的长圆孔71，第二轴体20穿设有传动销80，传动销80的两端通过长圆孔71伸出传动套70外。如此，安装在联轴器两端的驱动轴和从动轴的轴向窜动量等于传动销80在长圆孔71内移动的距离。并且，传动销80除起到限位作用外，还能起到“保险”的作用。当第一轴体10和第二轴体20通过锥齿传递扭矩时，第一轴体10和第二轴体20之间的齿卡死而无法脱开时，在扭矩的作用下，第二轴体20与传动套70将传动销80剪断，从而有效保护了驱动装置。In order to reserve a certain amount of axial movement for the driving shaft or the driven shaft, the peripheral wall of the transmission sleeve 70 is also provided with a radially penetrating and axially extending oblong hole 71 , and the second shaft body 20 is pierced with a transmission pin 80 . Both ends of the transmission pin 80 extend out of the transmission sleeve 70 through the oblong hole 71 . In this way, the axial movement of the drive shaft and the driven shaft installed at both ends of the coupling is equal to the distance that the transmission pin 80 moves in the oblong hole 71 . Moreover, the transmission pin 80 can also play the role of "insurance" in addition to the function of limiting the position. When the first shaft body 10 and the second shaft body 20 transmit torque through the bevel teeth, when the teeth between the first shaft body 10 and the second shaft body 20 are stuck and cannot be disengaged, under the action of the torque, the second The shaft body 20 and the transmission sleeve 70 cut off the transmission pin 80, thereby effectively protecting the driving device.
本实用新型的联轴器的第一轴体10可以连接驱动轴，当然也可以连接从动轴，优选地，第一轴体10连接驱动轴，传动套70连接从动轴。The first shaft body 10 of the shaft coupling of the present invention can be connected to the driving shaft, of course, can also be connected to the driven shaft. Preferably, the first shaft body 10 is connected to the driving shaft, and the transmission sleeve 70 is connected to the driven shaft.
综上所述，本实用新型的联轴器使驱动轴和从动轴实现了柔性连接，从而实现了对驱动装置(驱动装置包括电动机、步进电机等)的过载保护。In summary, the coupling of the utility model realizes a flexible connection between the driving shaft and the driven shaft, thereby realizing overload protection for the driving device (the driving device includes a motor, a stepping motor, etc.).
以上实施例仅为本实用新型的示例性实施例，不用于限制本实用新型，本实用新型的保护范围由权利要求书限定。本领域技术人员可以在本实用新型的实质和保护范围内，对本实用新型做出各种修改或等同替换，这种修改或等同替换也应视为落在本实用新型的保护范围内。The above embodiments are only exemplary embodiments of the utility model, and are not used to limit the utility model, and the protection scope of the utility model is defined by the claims. Those skilled in the art can make various modifications or equivalent replacements to the utility model within the spirit and protection scope of the utility model, and such modifications or equivalent replacements should also be deemed to fall within the protection scope of the utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520151485.4U CN204493488U (en) | 2015-03-17 | 2015-03-17 | Coupling |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520151485.4U CN204493488U (en) | 2015-03-17 | 2015-03-17 | Coupling |
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| CN204493488U true CN204493488U (en) | 2015-07-22 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666700A (en) * | 2016-03-30 | 2016-06-15 | 北汽福田汽车股份有限公司 | Stirring shaft, stirring mechanism and concrete pump truck |
| CN107489381A (en) * | 2017-09-28 | 2017-12-19 | 山西风雷钻具有限公司 | Antioverloading helicoid hydraulic motor |
| CN112706128A (en) * | 2020-12-30 | 2021-04-27 | 江苏东成工具科技有限公司 | Electric hammer torque adjusting device |
| CN113931939A (en) * | 2021-08-31 | 2022-01-14 | 江苏泰克曼传动设备有限公司 | Take shaft coupling of safety protection function |
-
2015
- 2015-03-17 CN CN201520151485.4U patent/CN204493488U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105666700A (en) * | 2016-03-30 | 2016-06-15 | 北汽福田汽车股份有限公司 | Stirring shaft, stirring mechanism and concrete pump truck |
| CN105666700B (en) * | 2016-03-30 | 2018-05-11 | 北汽福田汽车股份有限公司 | Agitating shaft, rabbling mechanism and concrete mixer |
| CN107489381A (en) * | 2017-09-28 | 2017-12-19 | 山西风雷钻具有限公司 | Antioverloading helicoid hydraulic motor |
| CN112706128A (en) * | 2020-12-30 | 2021-04-27 | 江苏东成工具科技有限公司 | Electric hammer torque adjusting device |
| CN113931939A (en) * | 2021-08-31 | 2022-01-14 | 江苏泰克曼传动设备有限公司 | Take shaft coupling of safety protection function |
| CN113931939B (en) * | 2021-08-31 | 2024-03-29 | 江苏泰克曼传动设备有限公司 | Coupler with safety protection function |
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Address after: 065000 Langfang City, Hebei Province Economic Development Zone Chang Xiang Guangyang Road, South Road East 100 Patentee after: LANGFANG KIM YUN ELECTRIC CO.,LTD. Address before: 065001 Langfang city in Hebei Province Road Development Zone, the new Austrian Yaohua Industrial Co. Ltd. North hi tech Patentee before: LANGFANG JINRUN ELECTRIC Co.,Ltd. |
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