CN214743101U

CN214743101U - Adjustable tensioning device that resets

Info

Publication number: CN214743101U
Application number: CN202120823724.1U
Authority: CN
Inventors: 杨翠翠; 石江涛
Original assignee: Hefei Taihe Intelligent Technology Group Co Ltd
Current assignee: Hefei Taihe Intelligent Technology Group Co Ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-11-16
Anticipated expiration: 2031-04-21

Abstract

The utility model discloses an adjustable reset tensioning device, which comprises an installation part and an adjustable tensioning part which is connected with the installation part and is contacted with the tensioned part, wherein the installation part comprises an installation shaft and a shaft sleeve which is coaxially sleeved on the installation shaft and can rotate around the installation shaft, the shaft sleeve can slide along the installation shaft, and a locking screw which fixes the shaft sleeve and the installation shaft passes through the shaft sleeve; the shaft sleeve is connected with an installation arm capable of rotating around the shaft sleeve, the installation arm is provided with a flexible fixing assembly for fixedly connecting the installation arm and the shaft sleeve, and the adjustable tensioning part and the installation arm are installed at the end far away from the shaft sleeve; the utility model discloses an adjustable overspeed device tensioner that resets, simple structure is convenient for adjust tensioning position, tensioning dynamics, and can realize automatic fine adjustment buffering and reset in the tensioning.

Description

Adjustable tensioning device that resets

Technical Field

The utility model belongs to mechanical motion tensioning field, more specifically the utility model relates to an adjustable overspeed device tensioner that resets that says so.

Background

The tensioning device is an important component in mechanical chain transmission or belt transmission and is related to the stability and the precision of a transmission mechanism; however, the tensioning mechanism in the prior art has the disadvantages of complex structure, complex assembly, inconvenient installation, small adjustable range and no functions of buffering, resetting and fine adjustment. The tensioning mechanisms of the prior art have not been able to meet the precision or flexibility requirements of people in chain or belt drives.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an adjustable overspeed device tensioner that resets, simple structure is convenient for adjust tensioning position, tensioning dynamics, and can realize automatic fine adjustment and buffering and reset in the tensioning.

The utility model provides an adjustable tensioning device that resets, including the installation department and with the installation department is connected and with the adjustable tensioning portion of being tensioned the portion contact, the installation department includes that installation axle and coaxial cover are established on the installation axle and can be around the axle sleeve of installation axle rotation, the axle sleeve can slide along the installation axle, pass on the axle sleeve with the axle sleeve with the fixed locking screw of installation axle; the adjustable tensioning device comprises a shaft sleeve, and is characterized in that a mounting arm capable of rotating around the shaft sleeve is connected onto the shaft sleeve, a flexible fixing assembly capable of fixedly connecting the mounting arm and the shaft sleeve is arranged on the mounting arm, and the adjustable tensioning portion and the mounting arm are far away from the shaft sleeve end.

Preferably, the flexible fixed subassembly establishes including the cover just be cylindrical tensioning torsional spring on the axle sleeve, tensioning torsional spring one end with the axle sleeve is fixed, the other end with the installation arm is fixed.

Preferably, the shaft sleeve with equipartition is equipped with the torsional spring jack on the installation arm respectively, tensioning torsional spring both ends are equallyd divide and are inserted two respectively in the torsional spring jack.

Preferably, the adjustable tensioning part comprises a tensioning shaft connected with the mounting arm, and a tensioning wheel rotating around the tensioning shaft and contacting with the tensioned part is sleeved on the tensioning shaft.

Preferably, the tensioning shaft is an eccentric shaft, the eccentric shaft includes a cylindrical shaft passing through the mounting arm and connected to the mounting arm and an eccentric portion integrally connected to one end of the cylindrical shaft, and the tensioning wheel is sleeved on the eccentric portion.

Preferably, the cylindrical shaft is provided with a locking part for fixedly connecting the cylindrical shaft and the mounting arm, and the locking part comprises a locking nut sleeved on the cylindrical shaft and a cotter pin penetrating through the cylindrical shaft and realizing the fixation of the locking nut.

The utility model discloses technical scheme's an adjustable overspeed device tensioner that resets's beneficial effect is: through setting up installation department and adjustable tensioning portion, realize being convenient for the regulation of adjustable tensioning portion position on the one hand, realize carrying out the regulation of tensioning portion position according to tensioning requirement or chain, area position in the tensioning, on the other hand realizes in the tensioning, realizes the regulation to tensioning capacity and dynamics, realizes the electrodeless fine setting of tensioning, can also realize automatic fine setting and automatic re-setting through the tensioning torsional spring.

Drawings

FIG. 1 is a schematic view of the installation of an adjustable reset tensioning device according to the present invention during tensioning operation,

figure 2 is a schematic perspective view of an adjustable reset tensioning device according to the present invention,

figure 3 is a front view of an adjustable reset tensioning device of the present solution,

figure 4 is a cross-sectional view of an adjustable reduction tensioner of the present technology,

fig. 5 is a schematic structural view of a tension torsion spring in an adjustable reset tension device according to the technical scheme.

Detailed Description

In order to facilitate the understanding of the technical solutions of the present invention by those skilled in the art, the technical solutions of the present invention will now be further described with reference to the drawings attached to the specification.

The utility model discloses technical scheme's adjustable overspeed device tensioner that resets can realize that driving chain or drive belt carry out the tensioning, during the tensioning, install as the state shown in FIG. 1, adjustable overspeed device tensioner 200's installation department 1 and fixed mounting such as frame, with adjustable tensioning portion 2 on the adjustable overspeed device tensioner 200 and driving chain or drive belt by tensioning portion 100 position contact and tensioning.

As shown in fig. 2 to 4, the utility model provides an adjustable tensioning device that resets, including installation department 1 and the adjustable tensioning portion 2 who is connected with installation department 1 and with by tensioning portion 100 contact. The mounting portion 1 includes a mounting shaft 11 and a sleeve 12 coaxially fitted over the mounting shaft 11 and rotatable about the mounting shaft 11. The sleeve 12 is slidable along the mounting shaft 11, and a locking screw 14 for fixing the sleeve 12 to the mounting shaft 11 is inserted through the sleeve 12. The shaft sleeve 12 is connected with a mounting arm 13 capable of rotating around the shaft sleeve 12, and the mounting arm 13 is provided with a flexible fixing component for fixedly connecting the mounting arm 13 and the shaft sleeve 12. The adjustable tensioning part 2 is mounted with the mounting arm 13 remote from the end of the sleeve 12.

Based on the above technical solution, firstly, the shaft sleeve 12 is mounted on the mounting shaft 11 through the bearing 17, and before the locking screw 14 is unlocked, the shaft sleeve 12 can slide around the mounting shaft 11, so that the mounting arm 13 connected with the shaft sleeve 12 and the adjustable tensioning part 2 thereon can be adjusted to adapt to the position of the tensioned part 100. At the same time, the mounting arm 13 is also able to rotate with the sleeve 12 about the mounting shaft 11 to accommodate the position of the tensioned portion 100 or the degree of tensioning required. As shown in fig. 1, after the mounting shaft 11 is fixed, the adjustable tensioning portion 2 can adjust the position of the tensioned portion 100 according to the track shown by the dashed dotted line in fig. 1, the adjustable tensioning portion 2 rotates to different positions, the tensioning capacity of the tensioned portion 100 is different, the adaptability of the tensioning device is improved, the tensioning force can be conveniently adjusted in tensioning, only the shaft sleeve 12 needs to be rotated in adjustment, other structures do not need to be adjusted, and the adjustment is convenient and quick, and is simple to operate.

Based on above-mentioned technical scheme, flexible fixed subassembly realizes fixing installation arm 13 and axle sleeve 12, avoids among the tensioning process, and installation arm 13 is rotatory around axle sleeve 12, loses the tensioning. Meanwhile, the flexible fixing assembly can also realize automatic fine adjustment of the tension of the tensioned part 100, and realize buffering tensioning and resetting effects.

The flexible fixing component comprises a cylindrical tensioning torsion spring 15 which is sleeved on the shaft sleeve 12, one end of the tensioning torsion spring 15 is fixed with the shaft sleeve 12, and the other end of the tensioning torsion spring is fixed with the mounting arm 13. Because the tension torsion spring utilizes the principle of a lever, the tension torsion spring has great mechanical energy by twisting or rotating the elastic material with soft material and high toughness. Therefore, depending on the structure and characteristics of the tension torsion spring 15, the mounting arm 13 is restrained and restrained by the torsion force of the tension torsion spring 15 during tensioning, and the mounting arm 13 cannot rotate about the bushing 12. When the tension torsion spring 15 is not fixed with the mounting arm 13, the mounting arm 13 rotates around the shaft sleeve 12, and after the rotation reaches a required angle, the tension torsion spring 15 is fixed with the mounting arm 13, so that the tension constraint of the mounting arm 13 is realized. In the tensioning process, under the action of the spring characteristic of the tensioning torsion spring 15, a certain buffering effect on the tensioned part 100 can be realized, the automatic fine adjustment of the tensioning force of the tensioned part 100 is realized, and the buffering tensioning and resetting effects are realized.

As shown in fig. 2 and 3, the shaft sleeve 12 and the mounting arm 13 are respectively provided with a torsion spring insertion hole 16, and two ends of the tension torsion spring are respectively inserted into the two torsion spring insertion holes 16, so that the connection and fixation of the tension torsion spring with the shaft sleeve and the mounting arm are facilitated, and the operation is facilitated.

As shown in fig. 5, a certain initial pressure is required before the tension torsion spring 15 is installed to ensure that the tension torsion spring 15 can apply a torsional force to the mounting arm 13 during the tensioning process to counteract the force applied to the mounting arm 13 by the tensioned part 100. The installation process of the tension torsion spring 15 includes firstly determining the position of the installation arm 13, sleeving the tension torsion spring 15 on the shaft sleeve 12, inserting the first torsion arm 151 of the tension torsion spring 15 into the torsion spring insertion hole 16 on the installation arm 13, then inserting the first torsion arm 151 into the shaft sleeve 12, rotating the shaft sleeve 12 to a proper position, giving an initial torsion to the tension torsion spring 15, and then fixing the shaft sleeve 12 and the installation shaft 11 through the locking screw 14, so that the fixation and installation of the installation part 1 are achieved.

As shown in fig. 5, after the first torsion arm 151 and the second torsion arm 152 of the tension torsion spring are respectively installed with the bushing 12 and the mounting arm 13, the torsion force applied to each of the first torsion arm 151 and the second torsion arm 152 is opposite, and the torsion force applied to the first torsion arm 151 is opposite to the force applied to the mounting arm 13 by the tension part 100. Thus, the tensioning torsion spring 15 can be ensured to fix the mounting arm 13, and under the condition that the tensioning part 100 is excessively tensioned, the tensioning torsion spring 15 can buffer the tensioning, namely, the tensioning torsion spring 15 is twisted to a certain extent under the action of the reaction of the tensioning part 100, so that a certain tensioning force is counteracted, and the excessive tensioning of the tensioning part 100 is avoided.

As shown in fig. 2 and 4, the adjustable tension part 2 includes a tension shaft 21 connected to the mounting arm 13, and a tension wheel 22 that rotates around the tension shaft 21 and contacts the part to be tensioned 100 is fitted over the tension shaft 21. The tension pulley 22 rotates around the tension shaft 21 during the tension process, reducing the friction force at the contact position of the tension pulley 22 and the tensioned part 100.

As shown in fig. 2 and 4, the tensioning shaft 21 is an eccentric shaft including a cylindrical shaft 211 passing through the mounting arm 13 and connected thereto and an eccentric portion 212 integrally connected to one end of the cylindrical shaft 211, and the tensioning wheel 22 is fitted over the eccentric portion 212. By selectively installing the cylindrical shaft 211, the axial position of the eccentric part 212 is changed, namely the axial position of the rotation shaft of the tension pulley 22 is changed, and the tension of the tension path 22 is adjusted. The installation axle 11 and the fixed prerequisite of installation arm 13 are little, rotatory tensioning shaft 21 changes the take-up pulley 22 axis position, realizes the fine setting of tensile force, adjusts convenient and fast.

As shown in fig. 4, the cylindrical shaft 211 is provided with a locking portion for fixedly connecting the cylindrical shaft 211 and the mounting arm 13. The locking part comprises a locking nut 23 sleeved on the cylindrical shaft 211 and a cotter pin 21 which penetrates through the cylindrical shaft 211 and realizes the fixation of the locking nut 23. The arrangement of the locking nut 23 and the split pin 21 realizes the fixed connection of the cylindrical shaft 211 and the mounting arm 13, and meanwhile, the locking and loosening of the cylindrical shaft 211 and the adjustment of the rotation angle are facilitated, so that the operation is convenient.

The technical solution of the present invention is to provide an improved method for manufacturing a semiconductor device, which is characterized in that the method is not limited by the above-mentioned method, and the method is not substantially improved by the method and the device, or the method and the device are directly applied to other occasions without improvement, all within the protection scope of the present invention.

Claims

1. An adjustable reset tensioning device is characterized by comprising a mounting part and an adjustable tensioning part which is connected with the mounting part and is contacted with a tensioned part, wherein the mounting part comprises a mounting shaft and a shaft sleeve which is coaxially sleeved on the mounting shaft and can rotate around the mounting shaft, the shaft sleeve can slide along the mounting shaft, and a locking screw which is used for fixing the shaft sleeve and the mounting shaft penetrates through the shaft sleeve; the adjustable tensioning device comprises a shaft sleeve, and is characterized in that a mounting arm capable of rotating around the shaft sleeve is connected onto the shaft sleeve, a flexible fixing assembly capable of fixedly connecting the mounting arm and the shaft sleeve is arranged on the mounting arm, and the adjustable tensioning portion and the mounting arm are far away from the shaft sleeve end.

2. The adjustable tensioning device that resets of claim 1, wherein the flexible fixing component includes a cylindrical tensioning torsion spring sleeved on the shaft sleeve, one end of the tensioning torsion spring is fixed with the shaft sleeve, and the other end of the tensioning torsion spring is fixed with the mounting arm.

3. The adjustable reset tensioning device of claim 2 wherein said bushing and said mounting arm are each provided with a torsion spring receptacle, and wherein said tensioning torsion spring is inserted into said two torsion spring receptacles at each of said two ends.

4. The adjustable reduction tensioner of claim 1, wherein the adjustable tensioner comprises a tensioner shaft coupled to the mounting arm, the tensioner shaft having a tensioner wheel mounted thereon for rotation about the tensioner shaft and contacting the tensioned part.

5. The adjustable reset tensioning device of claim 4 wherein the tensioning shaft is an eccentric shaft, the eccentric shaft includes a cylindrical shaft passing through and connected to the mounting arm and an eccentric portion integrally connected to an end of the cylindrical shaft, and the tensioning wheel is disposed on the eccentric portion.

6. The adjustable reset tensioning device according to claim 5, wherein the cylindrical shaft is provided with a locking portion for fixedly connecting the cylindrical shaft with the mounting arm, and the locking portion comprises a locking nut sleeved on the cylindrical shaft and a cotter pin penetrating through the cylindrical shaft and realizing fixation of the locking nut.