CN211009767U

CN211009767U - Tensioning wheel of mini-tiller

Info

Publication number: CN211009767U
Application number: CN201921269472.1U
Authority: CN
Inventors: 胡红伟
Original assignee: Chongqing Julu Auto Parts Co ltd
Current assignee: Chongqing Julu Auto Parts Co ltd
Priority date: 2019-08-07
Filing date: 2019-08-07
Publication date: 2020-07-14
Anticipated expiration: 2029-08-07

Abstract

The utility model relates to a plough the machine field a little, specifically disclose a plough quick-witted take-up pulley a little. Including rotating straining device, horizontal straining device, adjustable roller mechanism, rotate straining device include the sleeve and with sleeve fixed connection's rotation pull rod, horizontal straining device include tensioning slider, set up in the fastener of tensioning slider one side, with tensioning slider fixed connection's threaded rod and cooperation tensioning slider sliding connection's slide platform, adjustable roller mechanism includes first gyro wheel, second gyro wheel, set up antifriction bearing on the gyro wheel, take out the shell axle, set up in take out the inside spring of shell axle and with the second gyro wheel rotates the telescopic shaft of connection just, and this utility model adjustable take-up pulley size is applicable to the tensioning of different model belts and adjusts. The wear resistance and the high temperature resistance can reach 200 ℃; and (3) smooth outer circle: the heat dissipation is fast, and the wear to the belt is less; the dead weight is lighter: correspondingly, the utilization rate of the power is improved, and the waste rate of the power is reduced.

Description

Tensioning wheel of mini-tiller

Technical Field

The utility model relates to a plough the machine field a little, especially relate to a plough quick-witted take-up pulley a little.

Background

The tensioner is a follower wheel that presses on the belt in order to change the wrap angle of the pulley or to control the tension of the belt. The belt transmission tensioning device can adopt a tensioning wheel to tension a belt when the center distance of the belt cannot be adjusted. The tensioning shaft is used for keeping a proper belt tensioning force in the actual use process, so that the belt is prevented from slipping, and the elongation caused by belt abrasion and aging is avoided. However, when the existing tensioning wheel works, the belt is difficult to keep a tensioning state all the time, so that the belt slips.

Chinese patent application No. CN201820074937.7 provides a tensioning axle for preventing disengagement of an automobile, comprising a tensioning axle mounting plate seat, a fixing seat, a tensioning wheel mounting frame, a tensioning wheel fixing frame, a bearing and a connecting shaft, wherein the bearing is mounted on the inner side of the upper portion of the tensioning wheel axle mounting plate seat, one end of the tensioning wheel fixing frame is mounted inside the bearing, two fixing plates are arranged on both sides of the upper portion of the tensioning wheel axle mounting plate seat and connected with each other through a bolt, a connecting shaft extending out of the surface of the tensioning wheel axle mounting plate seat is connected on the surface of one end of the tensioning wheel fixing frame, a torsion spring is sleeved on the surface of the connecting shaft, and a fixing shaft is mounted inside the other end of the tensioning wheel fixing frame. Thereby avoiding the problem that the working efficiency of the engine is reduced due to the slippage of the belt.

But the utility model discloses a rotate straining device, changed the belt height in the tensioning, increased transmission friction, reduced transmission efficiency, the model is fixed, and a take-up pulley can only be applicable to a belt tensioning, and the take-up pulley manufacturing material on the existing market is steel, has not wear-resisting, can not resist high temperature, the heat dissipation shortcoming such as slow.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problems of limited application range, no wear resistance, no high temperature resistance, slow heat dissipation and the like of the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a mini-tiller tensioning wheel comprises a rotary tensioning mechanism, a transverse tensioning mechanism positioned at the top of the rotary tensioning mechanism and an adjustable roller mechanism positioned on the side surface of the transverse tensioning mechanism on the basis of the prior art,

the rotary tensioning mechanism comprises a sleeve and a rotary pull rod fixedly connected with the sleeve;

the transverse tensioning mechanism is fixedly arranged on the side surface of the rotating pull rod and comprises a tensioning slide block, a fastener arranged on one side of the tensioning slide block, a threaded rod fixedly connected with the tensioning slide block and a slide way table matched with the tensioning slide block and in sliding connection;

the adjustable roller mechanism is fixedly installed on one side of the transverse tensioning mechanism and comprises a first roller and a second roller, wherein the first roller and the second roller are made of nylon materials, rolling bearings are arranged on the rollers, a shell drawing shaft is rotatably connected with the first roller, a spring is arranged in the shell drawing shaft, and a telescopic shaft is rotatably connected with the second roller.

The principle and effect of this basic scheme lie in:

1. the transverse tensioning mechanism is added, so that the belt tensioning can be adjusted on the basis of not changing the working height of the belt according to working requirements, the friction force is reduced, and the abrasion of the belt and the tensioning wheel is reduced.

2. Compared with the prior art, this utility model discloses a set up adjustable gyro wheel mechanism, through the nut that telescopic shaft screw thread end set up, the inside spring adjustment tensioning wheel size that sets up of cooperation is applicable to the tensioning of different model belts and adjusts.

3. First gyro wheel and second gyro wheel are the nylon material, compare with prior art: the wear resistance and the high temperature resistance can reach 200 ℃; the excircle is smooth: the heat dissipation is fast, the wear to the belt is less, and the service life of the belt is prolonged; the dead weight is lighter: correspondingly, the utilization rate of the power is improved, and the waste rate of the power is reduced.

Further, the sleeve is welded with the rotating pull rod.

Furthermore, the tensioning sliding block is in sliding connection with the slideway platform through a matched groove boss. The friction force of the sliding block moving on the slide way is reduced.

Furthermore, the adjustable roller mechanism is welded and rotates on one side of the top of the pull rod.

Furthermore, telescopic shaft one end with the spring contact sets up, and the other end sets up the screw thread. The telescopic shaft can be stretched out and drawn back under the spring action, adjusts the tensioning wheel size.

Further, the method is described. Adjusted to the appropriate size and the nut used for the fixation of that size.

Drawings

FIG. 1 is a schematic structural view of a tensioning wheel of the mini-tiller according to the embodiment of the present invention;

FIG. 2 is a partial enlarged view of a transverse tensioning mechanism of a mini-tiller tensioning wheel according to an embodiment of the present invention;

fig. 3 is the embodiment of the utility model provides a plough quick-witted adjustable roller mechanism section view of take-up pulley a little.

Detailed Description

The following is further detailed by the specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a rotary tensioning mechanism 1, a transverse tensioning mechanism 2, an adjustable roller mechanism 3, a sleeve 11, a rotary pull rod 12, a tensioning slide block 21, a fastening piece 22, a threaded rod 23, a slideway table 24, a first roller 31, a second roller 32, a rolling bearing 33, a shell drawing shaft 34, a spring 35, a telescopic shaft 36 and a nut 361.

An embodiment of a mini-tiller tensioning wheel is shown in figures 1-2 and comprises a rotary tensioning mechanism 1, a transverse tensioning mechanism 2 and an adjustable roller mechanism 3, wherein the rotary tensioning mechanism 1 comprises a lower sleeve 11 and a rotary pull rod 12 welded on the sleeve 11, the middle of the rotary pull rod 12 is bent, the distance between the rotary pull rods 12 of the adjustable roller mechanism 3 is increased, and interference is prevented. The transverse tensioning mechanism 2 is fixedly connected with the upper part of one side of the rotating pull rod 12, the transverse tensioning mechanism 2 comprises a slideway table 24, a tensioning slide block 21 which is arranged in the slideway table 24 and is in sliding fit with the slideway table 24 through a groove boss, a threaded rod 23 is fixedly arranged on the right side of the tensioning slide block 21, the side surface of the threaded rod is connected with a fastening piece 22, and the rear part of the tensioning slide block 21 is fixedly connected with an adjustable roller mechanism 3.

As shown in fig. 3, the adjustable roller mechanism 3 includes a first roller 31, a rolling bearing 33 is installed in the first roller 31, the first roller 31 and the rolling bearing 33 are rotatably installed on a take-out shaft 34, a spring 35 is installed in the take-out shaft 34, the left side of the spring contacts with a telescopic shaft 36, a second roller 32 and a bearing are rotatably installed on the telescopic shaft 36, a screw thread is provided at the left end of the telescopic shaft 36, and the size of the tension wheel is adjusted by a nut 361 matching with the spring 35.

The utility model discloses a theory of operation is: before the mini-tiller works, the size of a roller is adjusted to the size of the belt by adjusting the adjustable roller mechanism 3, the adjustable roller mechanism is fixed by a nut arranged on a telescopic shaft 36, a tensioning slide block 21 is pulled by a threaded rod 23 on a transverse tensioning mechanism 2 to pre-adjust the tension of the belt, the belt is extended in the rapid rotation process, the tensioning mechanism 1 is rotated, the surface of the adjustable roller mechanism 3 is tightly attached to the surface of the belt, the gap generated by the extension of the belt is filled, and the belt is prevented from slipping and breaking away.

The above description is only for the embodiments of the present invention, and the common general knowledge of the known specific structures and characteristics in the schemes is not described herein too much, and those skilled in the art will know all the common technical knowledge in the technical field of the present invention before the application date or the priority date, can know all the prior art in this field, and have the ability to apply the conventional experimental means before this date, and those skilled in the art can combine their own ability to perfect and implement the schemes, and some typical known structures or known methods should not become obstacles for those skilled in the art to implement the present application. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. A mini-tiller tensioning wheel comprises a rotary tensioning mechanism (1), and is characterized by further comprising a transverse tensioning mechanism (2) positioned at the top of the rotary tensioning mechanism (1), and an adjustable roller mechanism (3) positioned on the side surface of the transverse tensioning mechanism (2),

the rotary tensioning mechanism (1) comprises a sleeve (11) and a rotary pull rod (12) fixedly connected with the sleeve (11);

the transverse tensioning mechanism (2) is fixedly arranged on the upper part of the side surface of the rotating pull rod (12) and comprises a tensioning slide block (21), a fastening piece (22) arranged on one side of the tensioning slide block (21), a threaded rod (23) fixedly connected with the tensioning slide block (21) and a slideway table (24) in sliding connection with the tensioning slide block (21);

adjustable roller mechanism (3) fixed mounting is in horizontal straining device (2) one side, including first gyro wheel (31), second gyro wheel (32), set up antifriction bearing (33) on the gyro wheel, with first gyro wheel (31) rotate take out shell axle (34) of connecting, set up in take out the inside spring (35) of shell axle (34) and with second gyro wheel (32) rotate connect just telescopic shaft (36), first gyro wheel (31) and second gyro wheel (32) are the nylon material.

2. The mini-tiller tensioning wheel as claimed in claim 1, wherein: the middle part of the rotating pull rod (12) is bent, and the sleeve (11) is welded with the rotating pull rod (12).

3. The mini-tiller tensioning wheel as claimed in claim 1, wherein: the bottom of the tensioning sliding block (21) is provided with a groove, the hollow bottom surface of the slideway table (24) is provided with a boss, and the tensioning sliding block (21) is connected with the slideway table (24) in a sliding mode through the groove boss.

4. The mini-tiller tensioning wheel as claimed in claim 1, wherein: the adjustable roller mechanism (3) is welded on one side of the top of the rotating pull rod (12).

5. The mini-tiller tensioning wheel as claimed in claim 1, wherein: one end of the telescopic shaft (36) is in contact with the spring (35), and the other end of the telescopic shaft is provided with threads.

6. The mini-tiller tensioning wheel as claimed in claim 1, wherein: and a nut (361) is arranged at the threaded end of the telescopic shaft (36).