阅读说明：本技术 一种带阻尼无动力辊子机及其使用方法 (Damping unpowered roller machine and using method thereof ) 是由 韩熊冰 汤小明 徐亮亮 于 2020-10-20 设计创作，主要内容包括：本发明涉及物流设备技术领域,具体为一种带阻尼无动力辊子机及其使用方法。一种带阻尼无动力辊子机,包括机架和安装于所述机架的下滑输送线；所述下滑输送线包括弹性带阻尼辊组；所述弹性带阻尼辊组包括弹性带；阻尼辊,数量为两个,用于安装所述弹性带并使所述弹性带以速度匀速转动。本申请的带阻尼无动力辊子机在短距离且倾斜角度较大的下滑输送线上可以通过弹性带阻尼辊组对货物进行减速至所需速度,从而使货物能够平稳向下输送,避免货物发生碰撞或侧翻,弹性带阻尼辊组的设置方式具有成本低、拆装便利的优点。(The invention relates to the technical field of logistics equipment, in particular to a damping unpowered roller machine and a using method thereof. A damping unpowered roller machine comprises a rack and a lower sliding conveying line arranged on the rack; the lower sliding conveying line comprises an elastic band damping roller set; the elastic band damping roller set comprises an elastic band; two damping rollers for mounting and accelerating the elastic band Rotating at a constant speed. The damping unpowered roller machine has the advantages that the damping unpowered roller machine can decelerate the goods to the required speed through the elastic damping roller set on the short-distance and large-inclination-angle sliding conveying line, so that the goods can be conveyed downwards stably, collision or rollover of the goods is avoided, and the elastic damping roller set is low in cost and convenient to disassemble and assemble.)

1. The utility model provides a take damping unpowered roller machine which characterized in that: the device comprises a rack (1) and a downward sliding conveying line arranged on the rack (1); the lower sliding conveying line comprises an elastic band damping roller set;

the elastic band damping roller group comprises

An elastic band (2);

two damping rollers (3) for mounting the elastic band (2) and causing the elastic band (2) to rotate at a speedRotating at a constant speed.

2. The damping unpowered roller machine according to claim 1, characterized in that: the elastic band damping roller group also comprises

And the unpowered roller (4) is arranged between the two damping rollers (3) and is used for supporting the elastic belt (2).

3. The damping unpowered roller machine according to claim 2, characterized in that: the number of the unpowered rollers (4) is 2-4.

4. The damping unpowered roller machine according to claim 1, characterized in that: the lower sliding conveying line also comprises

And the unpowered roller group is arranged adjacent to the elastic band damping roller group and comprises a plurality of unpowered rollers II (5).

5. The damping unpowered roller machine according to claim 4, characterized in that: and a silica gel layer is arranged on the outer peripheral side of the unpowered roller II (5).

6. The damping unpowered roller machine according to claim 1, characterized in that: the sum of the lengths of the elastic band damping roller sets preset on the lower slide conveying line is L, wherein L is obtained by the following formula,

（1）；

（2）；

（3）；

（4）；

（5）；

wherein, W is the gravity of the goods,the angle of inclination of the lower slide conveying line,is the friction coefficient of the goods and the elastic belt (2),is the rotation speed of the elastic belt (2),the initial speed of the goods entering the lower sliding conveying line.

7. The damping unpowered roller machine according to claim 6, characterized in that: inclination angle of gliding conveyer lineNeed to satisfy，Is the friction coefficient of the goods and the elastic belt (2).

8. The damping unpowered roller machine according to claim 1, characterized in that: the speed ratio of the inner roller and the outer roller of the damping roller (3) is I, wherein I is obtained by the following formula,

（6）；

（7）；

（8）；

（9）；

（10）；

（11）；

（12）；

（13）；

（14）；

wherein, W is the gravity of the goods,the angle of inclination of the lower slide conveying line,is the rolling friction coefficient, R, of the goods with the damping roller (3)₁Is the radius of the inner drum, R₂The radius of the outer roller is the same as the radius of the outer roller,，，all the values are independent values and are the optimal position selected when the damping roller is designed, f1 is the friction coefficient between the friction plate and the inner wall of the roller, m is the mass of the swinging block,is the structural parameter of the roller, D is the diameter of the outer roller, n₁The rotational speed of the outer drum, n2 inner drum rotational speed.

9. The use method of the unpowered roller machine with the damping function is characterized in that: comprises the following steps

S1 according to the weight of the goods and the inclination angle of the downward sliding conveying lineAnd the required rotation speed of the elastic belt (2)Obtaining the inner and outer roller speed ratio I of the required damping roller (3), and selecting the damping roller (3) of which the gear transmission mechanism meets the use requirement according to the inner and outer roller speed ratio I;

s2 according to the weight of the goods and the inclination angle of the downward sliding conveying lineRequired rotation speed of the elastic belt (2)And initial speed of goods entering downslide conveyor lineObtaining the total length of a preset elastic band damping roller set;

s3, determining the number of the elastic band damping roller sets and the length of each elastic band damping roller set according to the total length of the preset elastic band damping roller sets;

s4, the elastic band damping roller group is installed with the frame (1).

10. The method of using a damped unpowered roller machine according to claim 9, characterized in that: in the step S3, when the required length of the lower slide conveyor line is greater than the total length of the preset elastic band damping roller set, the number and the arrangement position of the required unpowered roller set need to be determined;

and S4, installing the required unpowered roller group with the frame (1).

Technical Field

The invention relates to the technical field of logistics equipment, in particular to a damping unpowered roller machine and a using method thereof.

Background

With the further development of the logistics industry and the industry, more and more logistics conveying lines are developed towards the direction of intellectualization and three-dimensional. The unpowered roller conveyor does not need power, is simple in structure, and is widely applied to the short-distance sliding conveying line. The common glide slope is usually provided with a damping roller or a belt for braking, but the existing damping roller or belt deceleration braking mode is only suitable for a conveying line with a small inclination angle (generally less than 5 degrees), and when the angle of the conveying line is large, the pure damping roller or belt deceleration braking mode cannot achieve the deceleration effect, and even goods collision or rollover can be caused.

Application number is CN201921932321. X's utility model discloses a downhill path damping cylinder conveyer, including carrying the frame, certainly carry the upper reaches to low reaches of frame to be equipped with in proper order and carry the section, to middle section and butt joint section, carry the section to include a plurality of first conveying rollers, first conveying roller is equipped with its pivoted actuating mechanism of drive, including two second conveying rollers that are "people" font range to the middle section, the butt joint section includes a plurality of third conveying rollers. The conveyer of this structure can carry the goods to other stations from high to low and constant speed through transport section, centering section and butt joint section, prevents that the goods from causing collision and roll because speed is too fast. But the conveyer of this structure need set up external power, and the cost is higher relatively, and need set up three transport section, and the dismouting operation is comparatively complicated.

In order to reduce the cost and simplify the installation steps, it is still necessary to consider the deceleration without increasing the external power.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides a damping unpowered roller machine with simple and convenient installation and lower cost and a using method thereof.

The technical scheme adopted by the invention for solving the technical problems is as follows: a damping unpowered roller machine comprises a rack and a lower sliding conveying line arranged on the rack; the lower sliding conveying line comprises an elastic band damping roller set;

the elastic band damping roller group comprises

An elastic band;

two damping rollers for mounting the elastic memberBelt and speed of said elastic beltRotating at a constant speed.

The damping unpowered roller machine has the advantages that the damping unpowered roller machine can decelerate the goods to the required speed through the elastic damping roller set on the short-distance and large-inclination-angle sliding conveying line, so that the goods can be conveyed downwards stably, collision or rollover of the goods is avoided, and the elastic damping roller set is low in cost and convenient to disassemble and assemble.

Preferably, the elastic band damping roller group further comprises

And the unpowered roller is arranged between the two damping rollers and is used for supporting the elastic belt.

Preferably, the number of the unpowered rollers is 2-4.

Preferably, the lower slide conveying line further comprises

And the unpowered roller group is arranged adjacent to the elastic band damping roller group and comprises a plurality of unpowered rollers II.

Preferably, a silica gel layer is arranged on the outer peripheral side of the unpowered roller II.

Preferably, the sum of the lengths of the preset elastic band damping roller sets of the lower slide conveying line is L, wherein L is obtained by the following formula,

（1）；

（2）；

（3）；

（4）；

（5）；

wherein, W is the gravity of the goods,the angle of inclination of the lower slide conveying line,is the coefficient of friction of the goods with the elastic belt,is the speed of rotation of the elastic band,the initial speed of the goods entering the lower sliding conveying line.

Preferably, the angle of inclination of the lower slide conveying lineNeed to satisfy，Is the coefficient of friction of the cargo with the elastic belt.

Preferably, the speed ratio of the inner roller and the outer roller of the damping roller is I, wherein I is obtained by the following formula,

（6）；

（7）；

（8）；

（9）；

（10）；

（11）；

（12）；

（13）；

（14）；

wherein, W is the gravity of the goods,the angle of inclination of the lower slide conveying line,is the rolling friction coefficient, R, of the goods with the damping roller₁Is the radius of the inner drum, R₂Outer rollerThe radius of (a) is greater than (b),all the values are independent values and are the optimal position selected when the damping roller is designed, f1 is the friction coefficient between the friction plate and the inner wall of the roller, m is the mass of the swinging block,is the structural parameter of the roller, D is the diameter of the outer roller, n₁The rotational speed of the outer drum, n2 inner drum rotational speed.

The application method of the damping unpowered roller machine comprises the following steps

S1 according to the weight of the goods and the inclination angle of the downward sliding conveying lineAnd the required rotation speed of the elastic beltObtaining the inner and outer roller speed ratio I of the required damping roller, and selecting the damping roller of which the gear transmission mechanism meets the use requirement according to the inner and outer roller speed ratio I;

s2 according to the weight of the goods and the inclination angle of the downward sliding conveying lineRequired rotation speed of the elastic beltAnd initial speed of goods entering downslide conveyor lineObtaining the total length of a preset elastic band damping roller set;

s3, determining the number of the elastic band damping roller sets and the length of each elastic band damping roller set according to the total length of the preset elastic band damping roller sets;

s4 mounting the elastic band damping roller set on the frame.

Preferably, in S3, when the required length of the lower slide conveyor line is greater than the total length of the preset elastic band damping roller sets, the number and the arrangement positions of the required unpowered roller sets are also determined;

in S4, the method further includes mounting the required unpowered roller set to the frame.

Advantageous effects

The damping unpowered roller machine has the advantages that the damping unpowered roller machine can decelerate the goods to the required speed through the elastic damping roller set on the short-distance and large-inclination-angle sliding conveying line, so that the goods can be conveyed downwards stably, collision or rollover of the goods is avoided, and the elastic damping roller set is low in cost and convenient to disassemble and assemble.

Drawings

FIG. 1 is a schematic structural view of a damping unpowered roller machine according to the present application;

FIG. 2 is a side view of the damped unpowered roller machine of FIG. 1;

FIG. 3 is a top view of the damped unpowered roller machine of FIG. 1.

Detailed Description

The technical scheme of the invention is further explained by the specific implementation mode in combination with the attached drawings.

As shown in fig. 1 to 3, the damping unpowered roller machine comprises a frame 1 and a downward sliding conveying line mounted on the frame 1, wherein the length of the downward sliding conveying line is within 3 meters.

The lower sliding conveying line comprises an elastic band damping roller set, and the elastic band damping roller set comprises an elastic band 2 and a damping roller 3. The number of the damping rollers 3 is two, for mounting the elastic band 2 and making the elastic band 2 speedRotating at a constant speed.The expected running speed of the gliding conveyer line is generally 5-10m/min, and the application adoptsIs 6 m/min.

The elastic band damping roller group also comprises an unpowered roller 4 arranged between the two damping rollers 3. The unpowered rollers 4 are used for supporting the elastic belts 2, and the length of the elastic belt damping roller group can be changed by changing the number of the unpowered rollers 4. The number of the unpowered rollers 4 in the elastic band damping roller group is generally 2-4, for example, the number of the unpowered rollers 4 can be 3, and the elastic band damping roller group with the number has the best use effect, the lowest cost and the highest installation convenience.

The sum of the lengths of the elastic band damping roller sets preset on the lower slide conveying line is L, wherein L is obtained by the following formula,

（1）；

（2）；

（3）；

（4）；

（5）；

wherein, W is the gravity of the goods,the angle of inclination of the lower slide conveying line,being the coefficient of friction of the goods with said elastic band 2,as is the speed of rotation of the elastic band 2,the initial speed of the goods entering the lower sliding conveying line.

Specifically, according to the characteristics of the damping roller 3, it is assumed that the load is at V₀When the speed of =30m/min enters the speed bump consisting of the damping roller 3 and the elastic belt 2, the damping roller 3 is at V_tWhen the speed reduction belt is in a speed reduction belt speed of 6m/min, the resistance equal to the gravity component of the goods is generated, so that the speed reduction belt consisting of the damping roller 3 and the elastic belt 2 is always V-shaped_tAnd the speed of =6m/min is uniform. Because the speed of the goods is V₀And the speed is larger than the speed of the speed bump by =30m/min, so that the sliding friction between the goods and the speed bump occurs, the goods are decelerated by the friction force until the speed change is V =6m/min, and the speed bump is kept in relative stationary motion with the speed bump when the speed bump is decelerated to be stationary gradually due to the loss of the forward power of the goods to the speed bump formed by the damping roller 3 and the elastic belt 2 (the moving distance of the speed bump from the loss of the forward power to the stationary process is very short and can be ignored firstly).

Assuming that the mass of the goods is m =20Kg, the inclination angle of the downward sliding conveying line=10 °, get=0.2, according to newton's law: the counter-force f generated by sliding friction is then:bringing the data available:. And the component force of the gravity of the goods isThe acceleration is then generatedThen braking time. According to the formula, under the action of the acceleration, the goods can enter a stable speed V after sliding for 1.8s_t=6 m/min. And after the goods slide for 1.8s, the passing distance is L and can pass the formulaThe calculation results in that,. I.e. when the mass m =20Kg of the object is at an initial velocity V₀Entry angle of =30m/minIn the case of a lower run of =10 °, the braking speed V is required_tWhen the length of the deceleration strip (namely the elastic band damping roller group) consisting of the damping rollers 3 and the elastic bands 4 of which the speed is =6m/min is 1.26m, an object can be driven out of the glide slope in a state of decelerating to V =6m/min, and the phenomenon that goods are laterally turned or collided due to the fact that the glide speed is too high is avoided.

And if the length of the lower slide conveying line is less than 1.26 meters, for example 1.2 meters, the whole lower slide conveying line is composed of the elastic band damping roller group. Suppose that the length of taking 4 unpowered cylinder 4's elastic band damping roller set is 0.5 meters, the length of taking 3 unpowered cylinder 4's elastic band damping roller set is 0.4 meters, the length of taking 2 unpowered cylinder 4's elastic band damping roller set is 0.3 meters, then this application can adopt 3 unpowered cylinder 4's of taking elastic band damping roller set, also can adopt 1 4 unpowered cylinder 4's of taking elastic band damping roller set, 1 take 3 unpowered cylinder 4's elastic band damping roller set and 1 unpowered cylinder 4's of taking elastic band damping roller set.

Assuming that the length of the lower slide conveyor line is more than 1.26 meters, for example 2 meters, the whole lower slide conveyor line needs to adopt an unpowered roller set in addition to the elastic damping roller set. Elastic band damping roller set can adopt 3 elastic band damping roller sets that take 3 unpowered cylinders 4, and unpowered cylinder group comprises two 5 unpowered cylinders, and this application can adopt 2 unpowered cylinder groups of 0.4 meters long, sets up respectively between two adjacent elastic band damping roller sets. The outer peripheral side of the unpowered roller II 5 is provided with a silica gel layer, so that the rolling friction between the goods and the unpowered roller set is approximately equal to the gravity component generated by the goods, and the goods can slide on the unpowered roller set at a constant speed. The silica gel layer is detachably connected with the unpowered roller II 5, and the silica gel layer with a proper friction coefficient can be connected with the unpowered roller II 5 in the actual use process.

In addition, in order to make the damping unpowered roller machine of this application act on, the inclination of gliding transfer chainThe condition that the sliding friction force F is larger than the component force F of the gravity of the object, namely the inclination angle of the sliding conveying line, must be satisfiedNeed to satisfy，Is the coefficient of friction of the goods with the elastic band 2.

The damping roller 3 of the damping unpowered roller machine of the application needs to use a suitable gear transmission mechanism to enable the elastic belt 2 to have a desired speedUniform rotation, i.e. the damping roller 3 needs to select the inner and outer roller speed ratio I signA desirable gear transmission mechanism. Wherein, the speed ratio I of the inner roller and the outer roller is obtained by the following formula,

（6）；

（7）；

（8）；

（9）；

（10）；

（11）；

（12）；

（13）；

（14）；

wherein, W is the gravity of the goods,the angle of inclination of the lower slide conveying line,is the rolling friction coefficient, R, of the goods with the damping roller 3₁Is the radius of the inner drum, R₂The radius of the outer roller is the same as the radius of the outer roller,all the values are independent values and are the optimal position selected when the damping roller is designed, f1 is the friction coefficient between the friction plate and the inner wall of the roller, m is the mass of the swinging block,is the structural parameter of the roller, D is the diameter of the outer roller, n₁The rotational speed of the outer drum, n2 inner drum rotational speed.

In particular, the initial speed of the load entering the damping roller 3 is, for example, V₀=30m/min, the object mass is m =20Kg, and the glide slope angle is=10 °. The goods are subjected to the component force of the gravity of the goods along the conveying directionBecause the angle at this moment is special big inclination, the requirement of speed reduction can not be satisfied to the form of general damping roller speed reduction, so this application adopts the form that elastic webbing + damping roller combine, realizes the strong damping effect of continuation, plays the effect of speed reduction. At this time, the rolling friction coefficient of the goods with the damping roller 3=0.08, the corresponding friction force generated by the goods moving on the drum is. Therefore, the resistance provided by the single damping roller 3 is also requiredIs composed of=（34-15）/2=9.5N。

The operating principle of the damping roller is that the outer roller starts to rotate under the action of the gravity of goods, the inner roller obtains a great rotating speed through the mode of the acceleration of the inner planetary gear structure, and the braking effect of the damping roller is realized by the centrifugal force generated by the high-speed rotation of the inner swing block and the friction plate in the inner roller and the friction force generated by the friction of the roller wall. The speed of the glide-slope is relatively reasonable when the speed is 5-10m/min, and the braking speed is V_t=6m/min, component force F of single damping roller 3₁= 9.5N. The damping roller 3 generates a frictional force ofAccording to the arm of forceWherein R is₁Is the radius of the inner drum, R₂Is the radius of the outer roller, and R is taken₁=20mm，R₂=25mm, can be obtainedThen, then。

According to the structure of the damping roller, the resistance of the damping roller is provided by the friction force generated by the friction plate and the inner wall of the roller through the centrifugal force after the swinging block reaches a certain speed, and the resistance can be obtained according to the swinging block and the structure of the friction plate in the inner roller, and the positive pressure (extrusion force) provided by the centrifugal force and contacting the friction plate and the inner wall of the roller is as follows: f_jThe centrifugal force is as follows: f_L。

Wherein the content of the first and second substances,in the formulaAll are independent values and are the best positions to select when designing the damping roller. Based on the principle of friction force generationBecause ofThe friction force generated by the friction plate is maximized under the condition of satisfying the structure, namely，When the swinging block moves at a high speed, the tension generated by the spring is small and can be ignored, and the friction coefficient f =0.8 between the friction plate and the inner wall is taken.

Then。

The braking speed of the known outer roller is V_t=6m/min, the rotation speed of the outer drum is n1, the rotation speed of the inner drum is n2, V_t=6m/min =0.1m/s, thenThe rotating speed of the inner roller is n2=0.65I, and the angular speed of the inner roller can be calculated. According to the formula of centrifugal forceCan be calculated to obtain the following formulaWherein m =0.1Kg is determined according to the manufacturing material of the pendulum block, and according to the design structure of the roller, the pendulum block is taken=0.018m, ultimately yielding I = 15.8. Namely, when the speed ratio of the inner roller and the outer roller of the used damping roller 3 is 15.8, the braking requirement of the damping unpowered roller machine can be met.

The damping unpowered roller machine has the advantages that the damping unpowered roller machine can decelerate the goods to the required speed through the elastic damping roller set on the short-distance and large-inclination-angle sliding conveying line, so that the goods can be conveyed downwards stably, collision or rollover of the goods is avoided, and the elastic damping roller set is low in cost and convenient to disassemble and assemble.

The application also discloses a using method of the damping unpowered roller machine, which comprises the following steps

S1 according to the weight of the goods and the inclination angle of the downward sliding conveying lineAnd the required rotation speed of the elastic band 2And obtaining the required inner and outer roller speed ratio I of the damping roller 3, and selecting the damping roller 3 of which the gear transmission mechanism meets the use requirement according to the inner and outer roller speed ratio I. The damping roller 3 with the inner roller and the outer roller with the speed ratio I meeting the requirement can enable the elastic belt 2 to have the expected speedRotation of =6 m/min. For example, when the mass of the goods is m =20Kg, the angle of the lower sliding conveying lineWhen the speed ratio I of the inner roller and the outer roller of the gear transmission mechanism is 15.8 in the case of 10 degrees, the elastic belt 2 can be enabled to have a desired speedRotation of =6 m/min.

S2 determining the weight of the goods, the inclination angle of the lower slide conveyor line and the required rotation speed of the elastic belt 2And the initial speed V of the goods entering the downslide conveying line₀And solving the total length of the preset elastic band damping roller set. After the goods pass through the elastic band damping roller group (not necessarily continuous) with the length, the speed can be reduced to the expected reasonable speed, and the collision or the side rollover is avoided.

S3 determining the number of the elastic band damping roller sets and the length of each elastic band damping roller set according to the preset total length of the elastic band damping roller sets. The elastic band damping roller group is required to be provided with a plurality of damping roller groups instead of only one damping roller group, so that the deceleration effect is better.

S4 installs elastic band damping roller group and frame 1, only need during the installation with damping roller 3 axial both ends pass through the buckle and be connected with frame 1 can, the installation is very simple and convenient.

In addition, in S3, when the required length of the lower slide conveyor line is greater than the total length of the preset elastic band damping roller sets, the number and the arrangement positions of the required unpowered roller sets need to be determined. That is, the other part of the lower slide conveyor line needs to be provided with unpowered roller sets with proper resistance, and the unpowered roller sets can enable goods to advance at a stable speed.

And S4, the method further comprises the step of installing the needed unpowered roller set and the frame 1, and the installation is very simple and convenient only by connecting the two axial ends of the unpowered rollers 5 with the frame 1 through buckles.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention and do not limit the spirit and scope of the present invention. Various modifications and improvements of the technical solutions of the present invention may be made by those skilled in the art without departing from the design concept of the present invention, and the technical contents of the present invention are all described in the claims.