CN206257232U - Novel eccentric friction speed synchronizing linkage - Google Patents

Abstract

The utility model discloses a novel eccentric different-speed synchronous linkage device, which is characterized in that: the left and right sides of the installation frame are provided with active guide rails and driven guide rails; the active guide rail and the driven guide rail are provided with active sliders and driven sliders ;The inner side of the driving slider and the driven slider is connected with a driving rack and a driven rack with different tooth pitches; there is a linkage composed of two coaxial gears of different sizes between the driving rack and the driven rack The gear, the large gear meshes with the driving rack, and the pinion meshes with the driven rack; the roller of the eccentric runner assembly is arranged on the driving slider; the slider is provided with a tension spring. Its advantages are: scientific structure, simple and practical, stable structure, easy manufacture, small size, convenient assembly, low cost, different speed linkage action can be realized with only one driving power source, easy to control, safe and reliable, and can be widely used in clamping Tensioning mechanism, tensioning mechanism or different speed linkage equipment with different linkage speeds.

Description

New eccentric different speed synchronous linkage device

technical field

The utility model relates to a linkage device, in particular to a different-speed linkage equipment with different linkage speeds.

Background technique

The traditional clamping mechanism, tensioning mechanism or different-speed linkage equipment with different linkage speeds often use a mechanism with a dual-drive power source, and the power source often uses a cylinder, motor, etc. Its disadvantages are that the control system is relatively complex due to the need to control the actions of two power sources at the same time, resulting in poor reliability of the linkage action of the mechanism, large equipment volume, high cost of power source procurement and use, and is not conducive to energy conservation and environmental protection.

Contents of the invention

The utility model provides a single-drive power source variable-speed linkage device with better performance, small size and low cost in view of the defects of the above-mentioned variable-speed linkage equipment with dual-drive power sources.

In order to achieve the above purpose, the solution adopted by the utility model is: a new type of eccentric different-speed synchronous linkage device, including a mounting frame, and a power source fixed on the mounting frame; its feature is: the left and right sides of the mounting frame are provided with The guide rails, from left to right are the active guide rail and the driven guide rail respectively; there are sliders on the active guide rail and the driven guide rail, which are the active slider and the driven slider respectively; the active slider and the driven slider are opposite to each other There are racks arranged in parallel on the inner side, which are the driving rack and the driven rack respectively. The tooth pitches of the driving rack and the driven rack are different; there is a rotatable linkage between the driving rack and the driven rack. The gear is set on the installation frame through the bearing; the driving rack and the driven rack are meshed with the linkage gear respectively; the power source is an eccentric wheel assembly installed outside the installation frame, and the eccentric wheel assembly includes a rotating drive device, runners and rollers; the rotary drive device is set on the outside of the active slider, the runner is set on the end of the drive shaft of the rotary drive device, the outer side of the runner is provided with an eccentric circular groove, the roller is set on the active slider, and the roller extends into the into the eccentric circular groove of the runner and maintain rolling contact with the eccentric circular groove; the active slider is provided with a tension spring that pulls the active slider upward; the driven slider is provided with a pull spring that pulls the driven slider downward. Spring; the lower end of the active slider is connected to extend downwards to the bottom of the installation frame, then extend forward, then extend to the right to the center of the installation frame, and then extend to the bottom of the installation frame but not in contact with the installation frame Linkage crank arm. The linked crank arm can bypass the workpiece to realize the up and down linkage.

As a description of the above technical solution, the active force generated by the tension spring makes the active slider and the driven slider press against each other, and the runner of the eccentric runner assembly drives the active rack to move up and down bidirectionally through the roller and the active slider to control the active slider. The block and the driven slider are pressed against each other or opened in the opposite direction. Only one power source is needed to push the active rack to do linear motion, the active rack drives the linkage gear to rotate, and the dynamic linkage gear drives the driven rack to also perform linkage linear motion opposite or opposite to the active rack, but due to the tooth distance between the two They are not the same, and the moving speeds of the two are also different. Therefore, the driving rack and the driven rack drive the driving slider and the driven slider to move, and different speed linkage can be realized. Because it is a single driving power source, the control is more convenient, the volume can be made smaller, the linkage of different speeds is realized through mechanical transmission, the control is more convenient, energy saving and environmental protection, production costs, maintenance and use costs are low. The speed ratio can be changed by changing the size of the tooth pitch, that is, within a unit time, the active slider and the driven slider move oppositely or oppositely, but the strokes of the two are different. Among them, the linkage function can be realized by connecting the external linkage mechanism with the active slider and the driven slider.

As an improvement of the above technical solution, the aforementioned linkage gear is composed of two coaxial gears of different sizes, wherein the large gear meshes with the driving rack, and the pinion meshes with the driven rack. Since the angular speed of the large and small gears is the same when they rotate, but the linear speed is different, the speed transmitted to the rack is also different, so different linkage speeds can be realized.

As a further description of the above technical solution, the aforementioned guide rail is a grooved square guide rail, and the slider is a square slider.

As an improvement of the above technical solution, a chute is provided on the bottom side of the aforementioned rack, and a support roller supporting the rack is provided in the chute, and the support roller is fixed on the installation frame. The chute is matched with the roller, which can not only support the function of the rack, but also play the role of limiting the stroke of the rack.

It can be known from the above scheme that the utility model has the following advantages: scientific structure, simple and practical, stable structure, easy manufacture, small size, convenient assembly, low cost, and different speed linkage action can be realized with only one driving power source, easy Control, safe and reliable, can be widely used in clamping mechanism, tensioning mechanism or different speed linkage equipment with different linkage speeds.

Description of drawings

Fig. 1 is a schematic diagram of a novel eccentric different-speed synchronous linkage device.

FIG. 2 is a schematic diagram of the eccentric wheel assembly in FIG. 1 .

Marking instructions: 100—installation frame, 101—driving rack, 102—driven rack, 103—driving slider, 104—driven slider, 105—big gear, 106—pinion, 107—driving guide rail, 108 - driven guide rail, 109 - extension spring, 111 - upper limit switch, 112 - lower limit switch, 113 - rotary drive device, 114 - runner, 116 - roller, 117 - eccentric circular groove, 121 - support roller, 122 - Chute; 9—link crank arm.

detailed description

The utility model and its beneficial technical effects will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments.

Referring to Figures 1 to 2, it can be seen from the figures that the novel eccentric differential synchronous linkage device includes an installation frame 100 and a power source fixed on the installation frame 100; the left and right sides of the installation frame 100 are provided with guide rails arranged in parallel, from left to The right side is the active guide rail 107 and the driven guide rail 108; the active guide rail 107 and the driven guide rail 108 are provided with sliders, which are respectively the active slider 103 and the driven slider 104; the active slider 103 and the driven slider 104 are mutually The opposite inner side is connected with racks arranged in parallel, which are the driving rack 101 and the driven rack 102 respectively. The tooth pitches of the driving rack 101 and the driven rack 102 are different; the driving rack 101 and the driven rack 102 There is a rotatable linkage gear between them, and the gear is arranged on the installation frame 100 through bearings; the driving rack 101 and the driven rack 102 are meshed with the linkage gear respectively; Wheel 114 assembly, eccentric runner 114 assembly comprises rotary drive device 113, runner 114 and roller 116; Wheel 114 outer side is provided with eccentric circular groove 117, and roller 116 is located on the active slider 103, and roller 116 stretches in the eccentric circular groove 117 of running wheel 114 and keeps rolling contact with eccentric circular groove 117; There is a tension spring 109 that pulls the active slider 103 upward; the driven slider 104 is provided with a tension spring 109 that pulls the driven slider 104 downward; , then extend forward again, and then extend to the right to the center of the installation frame 100, and then extend to the bottom of the installation frame 100 but do not contact the linkage crank arm 9 of the installation frame 100.

Preferably, the linkage gear is composed of two coaxial gears of different sizes, wherein the large gear 105 meshes with the driving rack 101 , and the pinion gear 106 meshes with the driven rack 102 . The guide rail is a grooved square guide rail, and the slider is a square slider. A chute 122 is provided on the bottom side of the rack, and a support roller 121 for supporting the rack is provided in the chute 122 , and the support roller 121 is fixed on the installation frame 100 .

When in use, as long as the relevant action parts are connected with the corresponding sliders, reliable different-speed linkage actions can be realized.

According to the above specification and specific examples, it does not constitute any limitation to the utility model. The utility model is not limited to the specific implementation methods disclosed and described above. Some modifications and deformations of the utility model should also fall into the rights of the utility model. within the scope of protection required.

Claims (4)

1. A new type of eccentric different-speed synchronous linkage device, including an installation frame and a power source fixed on the installation frame; its feature is that there are guide rails arranged in parallel on the left and right sides of the installation frame, and the active guide rails are respectively from left to right and the driven guide rail; there are sliders on the driving guide rail and the driven guide rail, which are the driving slider and the driven slider respectively; the inner sides of the driving slider and the driven slider are connected with parallel racks, which are The driving rack and the driven rack have different tooth pitches; there is a rotatable linkage gear between the driving rack and the driven rack, and the gears are set on the mounting frame through bearings; The driving rack and the driven rack are engaged with the linkage gear respectively; the power source is an eccentric wheel assembly installed outside the installation frame, and the eccentric wheel assembly includes a rotary drive device, a runner and a roller; the rotary drive device is designed On the outside of the active slider, the runner is set at the end of the drive shaft of the rotary drive device. There is an eccentric circular groove on the outer side of the runner. The roller is arranged on the active slider. The roller extends into the eccentric circular groove of the runner and aligns with the eccentric The circular groove keeps rolling contact; the active slider is provided with a tension spring that pulls the active slider upward; the driven slider is provided with a tension spring that pulls the driven slider downward; the lower end of the active slider is connected with a downward extension Go below the installation frame, then extend forward again, then extend to the right to the center of the installation frame, and then extend to the bottom of the installation frame but do not contact the linkage crank arm of the installation frame. 2. The novel eccentric differential synchronous linkage device according to claim 1, characterized in that: the linkage gear is composed of two coaxial gears of different sizes, wherein the large gear meshes with the driving rack, and the pinion meshes with the slave gear. The movable rack meshes. 3. The novel eccentric variable speed synchronous linkage device according to claim 2, characterized in that: the guide rail is a grooved square guide rail, and the slider is a square slider. 4. The novel eccentric different-speed synchronous linkage device according to claim 1, 2 or 3, characterized in that: the bottom side of the rack is provided with a chute, and the chute is provided with supporting rollers supporting the rack, and the supporting rollers fixed on the mounting frame.