阅读说明：本技术 高效行程无级增程装置 (High-efficiency stroke stepless range-increasing device ) 是由 孙德训 于 2021-09-08 设计创作，主要内容包括：本发明涉及一种高效行程无级增程装置,包括架体,还包括驱动机构、大齿轮或大链轮、小齿轮、轮轴、固定齿条、移动齿条或链条,驱动机构及固定齿条固定设于架体上,大齿轮或大链轮与小齿轮同轴安装在轮轴上,大齿轮或大链轮与小齿轮同步转动,驱动机构的输出端通过连接件与轮轴连接,固定齿条与小齿轮相啮合,移动齿条或链条与大齿轮或大链轮相啮合。连接件为动板,轮轴安装在动板上,驱动机构的输出端通过动板与轮轴连接。还包括用于对动板进行导向限位的动板导向机构,动板导向机构设置在架体上。本发明结构简单紧凑,制造成本低,占据空间小,能在有限活动空间内实现齿条或链条的行程增大,能实现任意比例的增程,从而具有更广泛的应用场所。(The invention relates to a high-efficiency stroke stepless range-extending device, which comprises a frame body, a driving mechanism, a large gear or a large chain wheel, a small gear, a wheel shaft, a fixed rack and a movable rack or a chain, wherein the driving mechanism and the fixed rack are fixedly arranged on the frame body, the large gear or the large chain wheel and the small gear are coaxially arranged on the wheel shaft, the large gear or the large chain wheel and the small gear synchronously rotate, the output end of the driving mechanism is connected with the wheel shaft through a connecting piece, the fixed rack is meshed with the small gear, and the movable rack or the chain is meshed with the large gear or the large chain wheel. The connecting piece is a movable plate, the wheel shaft is arranged on the movable plate, and the output end of the driving mechanism is connected with the wheel shaft through the movable plate. The movable plate guide mechanism is used for guiding and limiting the movable plate and is arranged on the frame body. The invention has simple and compact structure, low manufacturing cost and small occupied space, can realize the stroke increase of the rack or the chain in a limited moving space, can realize the stroke increase of any proportion, and has wider application places.)

1. The utility model provides a stepless range extending device of high-efficient stroke, includes the support body, its characterized in that still includes actuating mechanism, gear wheel or bull sprocket, pinion, shaft, fixed rack, removal rack or chain, actuating mechanism and fixed rack are fixed to be located on the support body, gear wheel or bull sprocket and pinion coaxial arrangement are in on the shaft, gear wheel or bull sprocket and pinion synchronous rotation, actuating mechanism's output pass through the connecting piece with the shaft is connected, fixed rack with the pinion meshes mutually, removal rack or chain with gear wheel or bull sprocket meshes mutually.

2. A high efficiency stepless range extender as claimed in claim 1, wherein said connecting member is a movable plate, said wheel shaft is mounted on said movable plate, and the output end of said driving mechanism is connected with said wheel shaft through said movable plate.

3. The high-efficiency stroke stepless range extender according to claim 2, further comprising a movable plate guide mechanism for guiding and limiting the movable plate, wherein the movable plate guide mechanism is arranged on the frame body.

4. A high efficiency stepless range extender according to claim 3, wherein said movable plate guide mechanism comprises a movable plate guide plate, said movable plate guide plate is arranged at the side of said movable plate, said movable plate is provided with a guide groove matched with said movable plate guide plate.

5. The high-efficiency stroke stepless range extender according to claim 1, wherein the connecting piece is a U-shaped frame, the output end of the driving mechanism is connected with the closed end of the U-shaped frame, and two straight edges of the U-shaped frame are respectively connected with two ends of the wheel shaft.

6. A high-efficiency stroke stepless range extender according to any one of claims 1 to 5, wherein a rack guide rail is arranged on the moving rack, and the rack guide rail is fixed on the frame body.

7. A high efficiency stepless range extender according to any one of claims 2-4, wherein said chain is further provided with a tensioning mechanism capable of synchronously engaging said chain with said large sprocket, said tensioning mechanism being provided on said frame body and/or said movable plate.

8. The efficient stroke stepless range extender of claim 7, wherein said tensioning mechanism comprises a tensioning wheel, a tensioning wheel shaft of said tensioning wheel is mounted on said frame body and/or said movable plate.

9. The high-efficiency stroke stepless range extender according to claim 1, wherein the fixed rack is arranged on the frame body through a fixed seat.

10. The efficient stroke stepless range extender according to claim 1, wherein the driving mechanism is an air cylinder, an oil cylinder or an electric cylinder, the air cylinder, the oil cylinder or the electric cylinder comprises a cylinder body and an output end, and the cylinder body is fixed on the frame body.

Technical Field

The invention relates to a high-efficiency stroke stepless range increasing device, and belongs to the technical field of stroke increase.

Background

At present, with the rapid development of industrial technologies, the requirements on mechanical automation are higher and higher, the structure of mechanical automation is more and more complex, the design of a complex mechanical structure not only brings more and more large volume of equipment, but also increases the processing and manufacturing cost, and the wide application of mechanical automation equipment is seriously influenced.

If the existing air cylinder is adopted to drive the displacement of the component, the air cylinder with a large stroke can be replaced for meeting the requirement of large displacement, but the cylinder body of the air cylinder with the large stroke is long, the required installation space is large, the air cylinder with the large stroke cannot be installed at all aiming at equipment with limited installation space, and the requirement on the stroke cannot be met if the air cylinder with the small stroke is installed. Therefore, when the stroke of the driving component is needed, the existing structure for controlling the stroke is too complex or occupies too large space, so that the requirements of some existing automation equipment with limited installation space cannot be met.

At present, a gear rack structure can achieve displacement double-range effect, but the application range of the fixed range-extending structure is very limited, because the required displacement and the original displacement which can be provided are difficult to be coincided with the double-range requirement in most cases.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides the high-efficiency stroke stepless range-extending device which has a simple and compact structure and small occupied space and can increase the stroke in the limited space.

The technical scheme for solving the technical problems is as follows: the utility model provides a stepless range extending device of high-efficient stroke, includes the support body, still includes actuating mechanism, gear wheel or bull sprocket, pinion, shaft, fixed rack, removes rack or chain, actuating mechanism and fixed rack are fixed to be located on the support body, gear wheel or bull sprocket and pinion coaxial arrangement are in epaxial, gear wheel or bull sprocket and pinion synchronous rotation, actuating mechanism's output pass through the connecting piece with the shaft is connected, the fixed rack with the pinion meshes mutually, remove rack or chain with gear wheel or bull sprocket meshes mutually.

The invention has the beneficial effects that: when the driving mechanism acts, the large gear or the large chain wheel and the small gear are driven to integrally displace, the small gear rotates to drive the large gear or the large chain wheel to synchronously rotate due to the fact that the small gear is meshed with the fixed rack, and the large gear or the large chain wheel is meshed with the movable rack or the chain, so that the movable rack or the chain can move, the stroke of the movable rack or the chain is equal to the translation distance of the small gear (1+ the pitch diameter ratio of the large gear or the large chain wheel and the small gear), the pitch diameter ratio of the large gear or the large chain wheel and the small gear can be adjusted according to the size of the working environment space and the required stroke increment, and the stroke is increased. Compared with the existing range doubling mechanism, the range doubling mechanism can realize range lengthening in any proportion, thereby having wider application places. In a word, the invention has simple and compact structure, low manufacturing cost and small occupied space, can realize the increase of the stroke of the rack or the chain in a limited moving space, and can be widely applied to mechanical automation equipment.

On the basis of the technical scheme, the invention can be further improved as follows.

Furthermore, the connecting piece is a movable plate, the wheel shaft is arranged on the movable plate, and the output end of the driving mechanism is connected with the wheel shaft through the movable plate.

The driving mechanism directly drives the movable plate, and the driving connection is convenient and stable.

Furthermore, the movable plate guide mechanism is used for guiding and limiting the movable plate, and the movable plate guide mechanism is arranged on the frame body.

The beneficial effect who adopts above-mentioned further scheme is that, the activity to the movable plate is led spacingly, reduces actuating mechanism's radial atress, prolongs actuating mechanism's life.

Furthermore, the movable plate guide mechanism comprises a movable plate guide plate, the movable plate guide plate is arranged on the side portion of the movable plate, and a guide groove matched with the movable plate guide plate is formed in the movable plate.

Adopt above-mentioned further scheme's beneficial effect to realize leading and spacing to the movable plate through the movable plate baffle of locating the movable plate both sides, and simple to operate.

Furthermore, the connecting piece is a U-shaped frame, the output end of the driving mechanism is connected with the closed end of the U-shaped frame, and two straight edges of the U-shaped frame are respectively connected with two ends of the wheel shaft.

Adopt above-mentioned further scheme's beneficial effect to be, accessible U type frame realizes that actuating mechanism and shaft are stably connected.

Furthermore, a rack guide rail is arranged on the movable rack and is fixed on the rack body.

The beneficial effect who adopts above-mentioned further scheme is, it is spacing to lead to the walking direction of removing the rack.

Furthermore, a tensioning mechanism capable of enabling the chain to be synchronously meshed with the large chain wheel is further arranged on the chain, and the tensioning mechanism is arranged on the frame body and/or the movable plate.

Adopt the beneficial effect of above-mentioned further scheme to be, realize the tensioning of chain and the meshing transmission between chain and the sprocket.

Further, the tensioning mechanism comprises a tensioning wheel, and a tensioning wheel shaft of the tensioning wheel is mounted on the frame body and/or the movable plate.

Adopt the beneficial effect of above-mentioned further scheme to be, the tensile force of control chain to realize the closely cooperating of chain and big sprocket.

Furthermore, the fixed rack is arranged on the frame body through a fixed seat.

Adopt above-mentioned further scheme's beneficial effect to be, realize the stable location of fixed rack on the support body.

Further, actuating mechanism is cylinder, hydro-cylinder or electric cylinder, hydro-cylinder or electric cylinder include cylinder body and output, the cylinder body is fixed on the support body.

The beneficial effect who adopts above-mentioned further scheme is that, can select suitable actuating cylinder according to the installation demand, realize the drive of gear and sprocket to reach the mesh that rack or chain stroke enlargies.

Drawings

FIG. 1 is a schematic structural view of example 1 of the present invention;

FIG. 2 is a schematic structural view of a U-shaped frame according to the present invention;

FIG. 3 is a schematic structural view of example 2 of the present invention;

FIG. 4 is a schematic structural diagram of embodiment 3 of the present invention;

in the figure, 1, a frame body; 2. a drive mechanism; 3. a bull gear; 4. a pinion gear; 5. a wheel axle; 6. fixing a rack; 7. moving the rack; 8. a chain; 9. a connecting member; 91. a U-shaped frame; 92. a movable plate; 10. a large sprocket; 11. a movable plate guide plate; 12. a rack guide rail; 13. a tension wheel; 14. a fixed seat.

Detailed Description

The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the invention.

Embodiment 1, as shown in fig. 1 and 2, a high-efficiency stroke stepless range extending device includes a frame body 1, and further includes a driving mechanism 2, a gearwheel 3, a pinion 4, a wheel shaft 5, a fixed rack 6, and a movable rack 7, the driving mechanism and the fixed rack are fixedly disposed on the frame body, the gearwheel or the gearwheel 3 and the pinion 4 are coaxially mounted on the wheel shaft, the gearwheel or the gearwheel and the pinion rotate synchronously, an output end of the driving mechanism is connected with the wheel shaft through a connecting member 9, the fixed rack is engaged with the pinion, and the movable rack is engaged with the gearwheel.

The connecting piece is a U-shaped frame 91, the output end of the driving mechanism is connected with the closed end of the U-shaped frame, and two straight edges of the U-shaped frame are respectively connected with two ends of the wheel shaft. The stable connection of actuating mechanism and shaft can be realized to the accessible U type frame.

Embodiment 2, as shown in fig. 3, the connecting member is a movable plate 92 on which the wheel shaft is mounted, and the output end of the driving mechanism is connected to the wheel shaft through the movable plate.

And a rack guide rail 12 is arranged on the movable rack and is fixed on the rack body. The walking direction of the movable rack is guided and limited. The rest of the structure is the same as that of embodiment 1, and will not be described in more detail.

The fixed rack is arranged on the rack body through a fixed seat 14. Realize the stable location of fixed rack on the support body.

Embodiment 3, as shown in fig. 4, a high-efficiency stroke stepless range extender comprises a frame body 1, and further comprises a driving mechanism 2, a large sprocket 10, a small gear 4, a wheel shaft 5, a fixed rack 6 and a chain 8, wherein the driving mechanism and the fixed rack are fixedly arranged on the frame body, the large sprocket 10 and the small gear 4 are coaxially arranged on the wheel shaft 5, an output end of the driving mechanism is connected with the wheel shaft through a connecting piece 9, the fixed rack is meshed with the small gear, and the chain is meshed with the large sprocket.

The combination structure of the big gear or the big chain wheel and the small gear and the wheel shaft can have the following three modes:

the big gear wheel or the big chain wheel and the small gear wheel are respectively arranged on the wheel shaft and respectively rotate synchronously with the wheel shaft, and the connecting piece is connected with the wheel shaft through a bearing or a shaft sleeve;

or the big gear wheel or the big chain wheel and the small gear wheel are of an integrated structure and are arranged on the wheel shaft to synchronously rotate with the wheel shaft; the big gear or the big chain wheel and the small gear are connected with the wheel axle key;

or the big gear or the big chain wheel and the small gear are in an integrated structure and can be rotatably arranged on the wheel shaft, namely the big gear or the big chain wheel and the small gear can be connected with the wheel shaft through a bearing or a shaft sleeve, and the connecting piece is fixedly connected with the wheel shaft.

The connecting piece is a movable plate 92, the wheel shaft is arranged on the movable plate, and the output end of the driving mechanism is connected with the wheel shaft through the movable plate. The big gear or the big chain wheel and the small gear are arranged on the movable plate, all parts are stably arranged, the driving mechanism directly drives the movable plate, the driving connection is convenient, and the driving is stable.

The movable plate guide mechanism is used for guiding and limiting the movable plate and is arranged on the frame body. The movement of the movable plate is guided and limited, the radial stress of the driving mechanism is reduced, and the service life of the driving mechanism is prolonged.

The movable plate guide mechanism comprises a movable plate guide plate 11, the movable plate guide plate is arranged on the side portion of the movable plate, and a guide groove matched with the movable plate guide plate is formed in the movable plate. The guide and the limit of the movable plate are realized through the movable plate guide plates arranged on two sides of the movable plate, and the installation is convenient.

The chain is also provided with a tensioning mechanism which can enable the chain to be synchronously meshed with the large chain wheel, and the tensioning mechanism is arranged on the frame body and/or the movable plate. The tensioning of the chain and the meshing transmission between the chain and the chain wheel are realized.

The tensioning mechanism comprises a tensioning wheel 13, and a tensioning wheel shaft of the tensioning wheel is mounted on the frame body and/or the movable plate. The tension of the chain is controlled, so that the chain is tightly matched with the large chain wheel.

The fixed rack is arranged on the rack body through a fixed seat 14. Realize the stable location of fixed rack on the support body.

The driving mechanism is an air cylinder, an oil cylinder or an electric cylinder, the air cylinder, the oil cylinder or the electric cylinder comprises a cylinder body and an output end, and the cylinder body is fixed on the frame body. The driving cylinder can be selected according to the installation requirement, the driving of the gear and the chain wheel is realized, and the purpose of amplifying the stroke of the rack or the chain is achieved.

When the driving mechanism acts, the large gear or the large chain wheel and the small gear are driven to act, the small gear is meshed with the fixed rack, so that the small gear can rotate in the advancing process to drive the large gear or the large chain wheel to rotate, the large gear or the large chain wheel is meshed with the movable rack or the chain, the movable rack or the chain is moved, the stroke of the movable rack or the chain is equal to the translation distance of the small gear (1+ the pitch diameter ratio of the large gear or the large chain wheel and the small gear), the pitch diameter ratio between the large gear or the large chain wheel and the small gear can be adjusted according to the size of the working environment space and the required stroke increasing amount, and the stroke is increased.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.