阅读说明：本技术 齿轮齿条浮动消隙传动装置、齿轮齿条传动设备 (Gear rack floating anti-backlash transmission device and gear rack transmission equipment ) 是由 田家宽 于 2019-12-13 设计创作，主要内容包括：本发明公开了一种齿轮齿条浮动消隙传动装置,用于齿轮齿条传动设施上,其导向装置的传动轨迹为直线或大弧度,包含：支承模块,固定在所述导向装置的滑块上,利用滑块沿导向装置滑动；驱动模块,固定在支承模块上,用于输出所述齿轮齿条浮动消隙传动装置沿导向装置滑动的驱动力；齿轮齿条模块,与驱动模块相连,用于传动所述齿轮齿条浮动消隙传动装置沿导向装置滑动；消隙模块,固定在支承模块上,用于消除齿轮与齿条的啮合间隙。本发明的齿轮齿条浮动消隙传动装置和传动设备降低了对齿轮零件的加工精度的要求,也降低了对滑动单元和传动单元相互位置的安装精度的要求,使用寿命长,不仅降低了成本,还提升了生产线的对环境的适应性。(The invention discloses a gear rack floating anti-backlash transmission device, which is used on a gear rack transmission facility, wherein the transmission track of a guide device is a straight line or a large radian, and the device comprises: the supporting module is fixed on the sliding block of the guide device and slides along the guide device by utilizing the sliding block; the driving module is fixed on the supporting module and used for outputting the driving force of the gear rack floating anti-backlash transmission device sliding along the guide device; the gear rack module is connected with the driving module and is used for driving the gear rack floating anti-backlash transmission device to slide along the guide device; and the gap eliminating module is fixed on the supporting module and used for eliminating the meshing gap between the gear and the rack. The gear rack floating anti-backlash transmission device and transmission equipment provided by the invention have the advantages that the requirement on the machining precision of gear parts is reduced, the requirement on the installation precision of the mutual positions of the sliding unit and the transmission unit is also reduced, the service life is long, the cost is reduced, and the environmental adaptability of a production line is improved.)

1. A gear rack floating anti-backlash transmission device is used on a gear rack transmission facility, and the transmission track of a guide device of the device is a straight line or a large radian, and is characterized by comprising:

the supporting module is fixed on the sliding block of the guide device and slides along the guide device by utilizing the sliding block;

the driving module is fixed on the supporting module and used for outputting the driving force of the gear rack floating anti-backlash transmission device sliding along the guide device;

the rack and pinion module is connected with the driving module and is used for driving the rack and pinion floating anti-backlash transmission device to slide along the guide device;

and the gap eliminating module is fixed on the supporting module and is used for eliminating the meshing gap between the gear and the rack of the gear rack module.

2. The rack and pinion floating anti-backlash transmission of claim 1, wherein said support module comprises:

the sliding plate is fixed on the sliding block of the guide device;

and the mounting plate is arranged on the sliding plate and is used for supporting the driving module, the gear rack module and the anti-backlash module.

3. The gear rack floating anti-backlash transmission device of claim 2, wherein the mounting plate is disposed on the sliding plate by a pin, the mounting plate being rotatable about the pin.

4. The gear rack floating anti-backlash transmission device as claimed in claim 3, wherein the mounting plate is provided with a stress plate and a mounting seat, one end of the anti-backlash module is connected with the mounting seat, the other end of the anti-backlash module is connected with the stress plate, and the stress plate is stressed to drive the mounting plate to rotate around the pin shaft.

5. The rack and pinion floating anti-backlash transmission of claim 4, wherein the anti-backlash module comprises:

one end of the spring is connected with the mounting seat, and the other end of the spring is connected with the stress plate;

the adjusting assembly is used for connecting the spring with the mounting seat and adjusting the compression amount of the spring to change the acting force of the spring on the stress plate.

6. The rack and pinion floating anti-backlash drive of claim 5, wherein said adjustment assembly comprises an adjustment bolt and nut connecting the mount to the spring.

7. The gear rack floating anti-backlash transmission device as claimed in claim 1 or 3, wherein the gear rack module comprises a gear and a rack which are arranged in a meshing manner, the gear is mounted on the output shaft of the driving module, the rack is arranged in parallel with the guide device, and the track of the rack is consistent with the guide device.

8. The gear rack floating anti-backlash transmission device of claim 7, wherein the driving module comprises a motor assembly for outputting a driving force to rotate the gear.

9. The gear rack floating anti-backlash transmission of claim 8, wherein said drive module comprises a motor assembly comprising a servo motor and a reducer, said gear being mounted on an output shaft of said reducer.

10. A rack and pinion drive apparatus comprising the rack and pinion floating anti-backlash drive apparatus as claimed in any one of claims 1 to 9.

Technical Field

The invention relates to industrial automatic transmission equipment, in particular to a gear rack floating anti-backlash transmission device.

Background

The production line of modern industry tends to be unmanned operation more and more, and the core of the production line lies in transmission, and the production line extends various transmission mechanisms, and the more complicated production line, the longer the transmission distance, i.e. the longer the transmission stroke, wherein, gear and rack transmission is the more common transmission mode, but if the meshing of the gear and the rack is not tight enough, and there is a gap, the transmission stroke error can be caused, and meanwhile, the abrasion between the gear and the rack can also be increased, therefore, in the modern automatic production line, faults and unnecessary abrasion caused by the overlarge meshing gap of the gear and the rack can often occur, which not only increases the maintenance cost, but also delays the normal progress of production and affects the economic benefit.

Disclosure of Invention

According to the embodiment of the invention, a gear rack floating anti-backlash transmission device is provided, which is used for a gear rack transmission facility, wherein the transmission track of a guide device is a straight line or a large radian, and the device comprises:

the supporting module is fixed on the sliding block of the guide device and slides along the guide device by utilizing the sliding block;

the driving module is fixed on the supporting module and used for outputting the driving force of the gear rack floating anti-backlash transmission device sliding along the guide device;

the rack and pinion module is connected with the driving module and is used for driving the rack and pinion floating anti-backlash transmission device to slide along the guide device;

and the gap eliminating module is fixed on the supporting module and is used for eliminating the meshing gap between the gear and the rack of the gear rack module.

The support module includes:

the sliding plate is fixed on the sliding block of the guide device;

and the mounting plate is arranged on the sliding plate and is used for supporting the driving module, the gear rack module and the anti-backlash module.

The mounting plate is arranged on the sliding plate through a pin shaft and can rotate around the pin shaft.

The mounting plate is provided with a stress plate and a mounting seat, one end of the gap eliminating module is connected with the mounting seat, the other end of the gap eliminating module is connected with the stress plate, and the stress plate is driven by stress to drive the mounting plate to rotate around the pin shaft.

The anti-backlash module comprises:

one end of the spring is connected with the mounting seat, and the other end of the spring is connected with the stress plate;

the adjusting assembly is used for connecting the spring with the mounting seat and adjusting the compression amount of the spring to change the acting force of the spring on the stress plate.

The adjusting assembly comprises an adjusting bolt and a nut which are used for connecting the mounting seat and the spring.

The gear rack module comprises a gear and a rack which are arranged in a meshed mode, the gear is installed on an output shaft of the driving module, the rack is arranged in parallel with the guiding device, and the track of the rack is consistent with that of the guiding device.

The driving module comprises a motor component, and the motor component is used for outputting driving force to drive the gear to rotate.

The driving module comprises a motor assembly comprising a servo motor and a speed reducer, and the gear is mounted on an output shaft of the speed reducer.

According to another embodiment of the invention, a rack and pinion transmission device is provided, which comprises the rack and pinion floating anti-backlash transmission device.

According to the gear rack floating anti-backlash transmission device and the gear rack transmission equipment provided by the embodiment of the invention, the requirement on the machining precision of gear parts is reduced, the requirement on the installation precision of the mutual positions of the sliding unit and the transmission unit is also reduced, the service life is long, the cost is reduced, and the adaptability of a production line to the environment is improved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.

Drawings

FIG. 1 is a schematic structural diagram of a gear rack floating anti-backlash transmission device according to an embodiment of the invention;

FIG. 2 is a side view of a rack and pinion floating anti-backlash transmission according to an embodiment of the present invention;

element number description: 1-a servo motor; 2, a speed reducer; 3-a sliding plate; 4-a guide rail; 5, mounting a plate; 6, a pin shaft; 7, pressing a sleeve; 8, a spring; 9-a nut; 10-adjusting the bolt; 11-a gear; 12-rack.

Detailed Description

The present invention will be further explained by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings.

Firstly, the floating anti-backlash transmission device for the gear rack according to the embodiment of the invention will be described with reference to fig. 1-2, which can be used for a large number of automatic transmission facilities for the gear rack, is mainly suitable for linear or large-radian transmission tracks, and has a wide application range.

As shown in fig. 1-2, the floating anti-backlash transmission device for the rack and pinion of the embodiment of the invention is used for a rack and pinion transmission facility, the transmission track of the guide device is a straight line or a large radian, and the device comprises a supporting module, a driving module, a rack and pinion module and an anti-backlash module.

Specifically, as shown in fig. 1 to 2, the support module is fixed on a slide block of a guide device, in this embodiment, the guide device is a guide rail 4, and the guide rail 4 is a linear guide rail, and may also be a large arc guide rail. The support module includes: a sliding plate 3 fixed to a slider of the guide rail 4, the support module sliding along the guide rail 4 with the slider; and the mounting plate 5 is arranged on the sliding plate 3 and is used for supporting the driving module, the rack and pinion module and the backlash eliminating module so that the rack and pinion floating backlash eliminating transmission device integrally moves along the guide rail 4.

Further, the mounting plate 5 is arranged on the sliding plate 3 through a pin 6 and a pressing sleeve 7, and the mounting plate 3 can rotate around the pin 6. The mounting plate 5 is provided with a stress plate 51 and a mounting seat 52.

Specifically, as shown in fig. 1-2, the gap eliminating module is fixed on the supporting module and used for eliminating the meshing gap between the gear and the rack of the rack-and-pinion module. The anti-backlash module comprises a spring 8 and an adjusting component comprising an adjusting bolt 10 and a nut 9, the spring 8 is connected with the mounting seat 52 through the adjusting bolt 10 and the nut 9, the other end of the spring 8 is connected with the stress plate 51, the spring 8 applies elasticity to the stress plate 51, and the stress plate 51 drives the mounting plate 5 to rotate around the pin shaft 6 under stress. In the present embodiment, by adjusting the bolt 10 and the nut 9, the compression amount of the spring 8 can be adjusted, so as to change the acting force of the spring 8 on the force bearing plate 51, and thus change the torsion of the mounting plate 5 rotating around the pin 6.

Specifically, as shown in fig. 1-2, the rack-and-pinion module is connected to the driving module, and is used for driving the rack-and-pinion floating anti-backlash transmission device of the present embodiment to slide along the guide rail 4. Further, the rack and pinion module contains gear 11 and rack 12 that the meshing set up, and gear 11 installs on drive module's output shaft, and rack 12 and guide rail 4 parallel arrangement, and the orbit of rack 12 is unanimous with guide rail 4, and consequently, the rack and pinion floating anti-backlash transmission's of this embodiment working stroke can dispose in a flexible way to it is convenient to maintain, greatly increased life.

Specifically, as shown in fig. 1 to 2, the driving module is fixed on the mounting plate 5 and is used for outputting the driving force of the rack-and-pinion floating anti-backlash transmission device of the present embodiment sliding along the guide rail 4. Further, the drive module contains and is used for exporting drive power to drive the pivoted motor element of gear 11, and in this embodiment, motor element adopts the combination of servo motor 1 and speed reducer 2, and gear 11 installs on the output shaft of speed reducer 2. When the stress plate 51 is stressed, the mounting plate 5 is driven to rotate around the pin shaft 6, and then the gear 11 is driven to press the rack 12, so that floating meshing is realized, a meshing gap between the gear and the rack is eliminated, and the aim of gapless transmission is fulfilled. In addition, because the spring force can be adjusted, overload protection is realized, the machining precision of gear parts is reduced, the requirement on the installation precision of the mutual positions of the sliding functional unit and the transmission functional unit is reduced, the purchase cost and the installation cost are saved, and the application range of the embodiment to installation environment and factory facilities is expanded.

When the device works, the gear 11 and the rack 12 are pressed together through the spring 8, and as the gear 11 is arranged on the output shaft of the speed reducer 2, the servo motor 1 drives the gear 11 to rotate, and drives the sliding plate 3 to move through the meshing transmission of the gear 11 and the rack 12, so as to drive other modules to slide left and right along the guide rail 4. Meanwhile, the compression amount of the spring 8 can be adjusted by adjusting the bolt 10 and the nut 9, so that the size of the meshing contact force of the gear 11 and the rack 12 is adjusted.

As described above, in the gear rack floating anti-backlash transmission device according to the embodiment of the present invention, the requirement for the machining accuracy of the gear part is reduced, the requirement for the installation accuracy of the mutual position of the sliding unit and the transmission unit is also reduced, the service life is long, the cost is reduced, and the adaptability of the production line to the environment is improved.

The gear rack floating anti-backlash transmission device according to the embodiment of the invention is described above with reference to the accompanying drawings 1-2. Further, the present invention can also be applied to a rack and pinion apparatus.

According to another embodiment of the invention, a rack and pinion transmission device is provided, which comprises the rack and pinion floating anti-backlash transmission device. Specifically, the working principle of the gear rack floating anti-backlash transmission device in the gear rack transmission device of the present embodiment is the same as that of the above-described embodiments, and is not described herein again.

According to the gear rack transmission device provided by the embodiment of the invention, the requirement on the machining precision of the gear part is reduced through the gear rack floating anti-backlash transmission device, the requirement on the installation precision of the mutual positions of the sliding unit and the transmission unit is also reduced, the service life is long, the cost is reduced, and the environmental adaptability of the production line is improved.

The gear rack floating anti-backlash transmission device and the gear rack transmission equipment according to the embodiment of the invention are described above with reference to fig. 1-2, so that the requirement on the machining precision of gear parts is reduced, the requirement on the installation precision of the mutual positions of the sliding unit and the transmission unit is also reduced, the service life is long, the cost is reduced, and the adaptability of a production line to the environment is improved.

It should be noted that, in the embodiment of the present invention, although only the gear-rack meshing is described, it should be recognized that the working principle of the present invention is also applicable to the meshing of the gear and the rack, and therefore, the above description of the gear-rack meshing should not be considered as limiting the present invention to the meshing of the gear and the rack.

It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising a rack and pinion floating anti-backlash transmission" does not exclude the presence of another like element in a process, method, article, or apparatus that comprises the element.

While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.