CN221624821U - Tensioning adjusting device and conveyor - Google Patents

Abstract

The application provides a tensioning adjustment device and a conveyor, wherein the tensioning adjustment device comprises: the transmission belt is tensioned on the transmission mechanism, and the tensioning adjustment mechanism is arranged beside the transmission belt and used for adjusting the tensioning force of the transmission belt; wherein, tensioning adjustment mechanism includes: a bracket; at least one adjustment assembly disposed on the support, the adjustment assembly comprising: the driving piece is used for driving the bearing to push the driving belt along a first direction so as to enlarge the tension of the driving belt and driving the bearing to move along a second direction so as to reduce the tension of the driving belt, and the first direction is opposite to the second direction. The driving piece drives the shaft to bear and press the driving belt so as to enlarge or reduce the tension force of the driving belt, so that the driving belt is tensioned, deformation caused by long-term tensioning of the driving belt is avoided, and the service life of the driving belt is prolonged.

Description

Tensioning adjusting device and conveyor

Technical Field

The application relates to the field of automatic production, in particular to a tensioning and adjusting device and a conveyor.

Background

In the process of driving the transmission belt to rotate by the idler wheels, the transmission belt has certain ductility, so that the length of the transmission belt can be increased under the action of tensile force; this increased length needs to be compensated for, otherwise slippage between the belt and the rollers occurs due to the inability to make intimate contact, so tension adjustment mechanisms are introduced to ensure that the belt has sufficient tension and the belt and rollers have the necessary friction to allow the belt and rollers to operate properly.

At present, the common tensioning adjustment mechanism mostly adopts a mandril bolt adjustment mode or an idler wheel and a unitary groove adjustment mode to realize tensioning of the transmission belt, the assembly difficulty of the mode is high, workers are easy to make mistakes if not familiar with the assembly process, and the use effect of the subsequent tensioning adjustment mechanism is affected; after tensioning is finished, the tensioning adjusting mechanism is usually fixed through bolts, so that the tensioning adjusting mechanism cannot be adjusted, the transmission belt is in a tensioned state for a long time, the rollers are subjected to circumferential radial force, friction force between the transmission belt and the rollers is increased, transmission load is improved, and service life of the transmission belt is greatly influenced; meanwhile, after the tensioning adjustment mechanism works for a period of time, due to the problems of maintaining pretightening force, deformation of the transmission belt and the like, maintenance is needed manually, and tensioning of the transmission belt is performed again after the maintenance is completed, so that time cost is increased, and production progress of a production line is affected.

Therefore, how to provide an adjustable tensioning device is a technical problem that needs to be solved by those skilled in the art.

Disclosure of utility model

The application provides a tensioning adjusting device and a conveyor, wherein the tensioning adjusting device is used for adjusting the tension of a driving belt, so that the deformation caused by the fact that the driving belt is in a tight state for a long time is avoided, and the service life of the driving belt is prolonged.

To achieve the above object, a first aspect of the present application provides a tension adjusting apparatus comprising:

a belt which is tensioned on the transmission mechanism, and

The tensioning adjusting mechanism is arranged beside the transmission belt and used for adjusting the tensioning force of the transmission belt;

wherein, tensioning adjustment mechanism includes:

A bracket;

At least one adjustment assembly disposed on the support, the adjustment assembly comprising: the driving piece is used for driving the bearing to push the driving belt along a first direction so as to enlarge the tension of the driving belt and driving the bearing to move along a second direction so as to reduce the tension of the driving belt, and the first direction is opposite to the second direction.

Optionally, the bracket comprises: at least one base for securing the adjustment assembly.

Optionally, the bracket comprises: at least two bases for fixing the adjusting assembly and at least one connecting piece for connecting the two adjacent bases.

Preferably, the base comprises: a first base and a second base; the first base and the second base are respectively arranged at two sides of the driving belt and keep a preset distance with the driving belt;

the connecting piece includes: a first plate and a second plate; the two ends of the first plate and the second plate are respectively connected with the first base and the second base.

Preferably, when the number of the adjustment assemblies is at least two, each bearing is moved in the same direction or different directions by the driving of the corresponding driving member.

Preferably, the adjusting assembly further comprises: a bearing seat;

the driving piece includes: the driving shaft is connected with the bearing seat; the bearing is mounted on the bearing seat.

Preferably, the bearing housing comprises: the bottom plate and the fixing plates are symmetrically arranged at two ends of the bottom plate;

The bearing comprises: the inner ring and the outer ring are opposite, the inner ring is sleeved between the symmetrical fixing plates, and the outer ring is used for being attached to the surface of the transmission belt;

wherein, the axis of bearing is perpendicular with the drive direction of drive belt.

Optionally, the driving piece adopts any one of an air cylinder, an oil cylinder and a motor;

alternatively, the bearings are needle bearings or deep groove ball bearings.

Alternatively, the belt is a belt or chain.

A second aspect of the application provides a conveyor comprising: the tension adjusting device provided in the first aspect.

In the technical scheme of the application, a tensioning and adjusting device and a conveyor are provided, wherein the tensioning and adjusting device comprises: the transmission belt is tensioned on the transmission mechanism, and the tensioning adjustment mechanism is arranged beside the transmission belt and used for adjusting the tensioning force of the transmission belt; wherein, tensioning adjustment mechanism includes: a bracket; at least one adjustment assembly disposed on the support, the adjustment assembly comprising: the driving piece is used for driving the bearing to push the driving belt along a first direction so as to enlarge the tension of the driving belt and driving the bearing to move along a second direction so as to reduce the tension of the driving belt, and the first direction is opposite to the second direction. The driving piece drives the shaft to bear and press the driving belt so as to enlarge or reduce the tension force of the driving belt, so that the driving belt is tensioned, deformation caused by long-term tensioning of the driving belt is avoided, and the service life of the driving belt is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic illustration of a tensioning adjustment device provided in accordance with an embodiment of the present application;

FIG. 2 is a second schematic diagram of a tensioning device according to an embodiment of the present application;

FIG. 3 is a third schematic diagram of a tensioning device according to an embodiment of the present application;

FIG. 4 is a schematic view of a bracket for a tensioning device according to an embodiment of the present application;

Fig. 5 is a schematic view of an adjusting assembly of a tensioning adjusting device according to an embodiment of the present application.

Description of the drawings: 10. a transmission belt; 20. a tension adjusting mechanism; 30. a driving member; 31. a drive shaft; 40. a bearing; 50. a first base; 60. a second base; 70. a first plate member; 80. a second plate member; 90. a bearing seat; 91. a bottom plate; 92. a fixing seat.

Detailed Description

Some embodiments of the application are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these examples are merely for explaining the technical principles of the present application and are not intended to limit the scope of the present application.

As described in the background art, the common tensioning adjustment mechanism mostly adopts a mode of adjusting a push rod bolt or a mode of adjusting an idler wheel and a unitary groove to realize tensioning of the transmission belt, the assembly difficulty of the mode is high, workers are easy to make mistakes if the workers are unfamiliar with the assembly process, and the use effect of the subsequent tensioning adjustment mechanism is affected; after tensioning is accomplished, the tensioning adjustment mechanism can be fixed through the bolt generally, so, the tensioning adjustment mechanism can not be adjusted for a long time, the driving belt is in a tensioning state, the idler wheel is subjected to circumferential radial force, friction force between the driving belt and the idler wheel becomes large, driving load is improved, and service life of the driving belt is greatly influenced.

To solve the above problems, the core of the present application is to provide an adjustable tension adjusting device to achieve tension adjustment of a transmission belt.

Example 1

Embodiment 1 of the present application provides a tension adjusting apparatus, as shown in fig. 1 to 3, including: a belt 10 stretched over the transmission mechanism, and a tension adjusting mechanism 20 provided beside the belt 10 for adjusting the tension of the belt; wherein the tension adjusting mechanism 20 includes: a bracket; at least one adjustment assembly disposed on the support, the adjustment assembly comprising: a driving member 30 and a bearing 40, the driving member 30 for driving the bearing 40 to press against the belt 10 in a first direction to enlarge the tension of the belt 10 and for driving the bearing 40 to move in a second direction to reduce the tension of the belt 10, the first direction being opposite the second direction.

The driving piece 30 drives the bearing 40 to press the driving belt 10 so as to enlarge or reduce the tensioning force of the driving belt 10, so that the driving belt 10 is tensioned, deformation caused by long-term tensioning of the driving belt 10 is avoided, and the service life of the driving belt 10 is prolonged; in addition, the tensioning adjustment mechanism 20 can be automatically adjusted, reducing the frequency of manual maintenance and adjustment. The bearings 40 roll with the movement of the belt 10, reducing friction and, to some extent, transmission load.

Optionally, the bracket comprises: at least one base for securing the adjustment assembly.

In one embodiment of the present application, the base may be disposed on the same side of the belt 10, or may be partially disposed on one side of the belt 10, and the other portion is disposed on the other side of the belt 10; for example, the base may be disposed entirely on the upper side of the belt 10, with the drive member 30 pushing the drive shaft downward such that the bearing 40 pushes the belt 10 downward to maintain a certain tension on the belt 10; for another example, a part of the base is disposed on the upper side of the driving belt 10, another part of the base is disposed on the lower side of the driving belt 10, and a part of the driving member 30 is pushed out of the driving shaft downwards, so that the bearing 40 pushes the driving belt 10 downwards to be tensioned, and another part of the driving member 30 is pushed out of the driving shaft upwards, so that the bearing 40 pushes the driving belt 10 upwards to be tensioned, so that the driving belt 10 maintains a certain tensioning force.

Optionally, the bracket comprises: at least two bases for fixing the adjusting assembly and at least one connecting piece for connecting the two adjacent bases.

Wherein, the support adopts split type structure, comprises a plurality of bases and connecting piece, so for the installation becomes relatively simple, through the assembled mode of rational design base and connecting piece, can further simplify the installation step, improves installation effectiveness.

Preferably, as shown in fig. 1 to 4, the base includes: a first base 50 and a second base 60; the first base 50 and the second base 60 are respectively arranged at two sides of the driving belt 10, and are kept at a preset distance from the driving belt 10; the connecting piece includes: a first plate member 70 and a second plate member 80; both ends of the first and second plate members 70 and 80 are connected to the first and second bases 50 and 60, respectively.

Wherein, the first base 50 is arranged on the upper side of the driving belt 10, the second base 60 is arranged on the lower side of the driving belt 10, and the two bases are arranged on different sides; the displacement generated by the driving piece propping driving belt 10 under the condition of the different side setting is far smaller than the displacement generated by the driving piece propping driving belt 10 under the same side setting, namely, if the same tensioning effect is to be achieved, the distance of the different side setting for moving the driving belt 10 is shorter than that of the same side setting, so that the tensile force born by the driving belt 10 is relieved to a certain extent, and meanwhile, the deformation caused by the tightening of the driving belt 10 is avoided to a certain extent. The arrangement of the first plate 70 and the second plate 80 ensures the stability of the connection between the first base 50 and the second base 60; the preset distance is configured so that the belt 10 does not touch the first and second bases 50 and 60 during movement, ensuring the stability of the operation of the belt 10.

Preferably, when the number of the adjustment assemblies is at least two, each bearing 40 moves in the same direction or different directions under the driving of the corresponding driving member 30.

Wherein movement in the same direction can ensure that the belt 10 is uniformly stressed and movement in different directions can ensure that different portions of the belt 10 are subjected to different tensioning forces; the specific movement direction is set according to the actual situation.

Preferably, as shown in fig. 1-5, the adjustment assembly further includes a bearing housing 90; the driving member 30 includes a driving shaft 31, and the driving shaft 31 is connected to the bearing housing 90; the bearing 40 is mounted on a bearing housing 90.

Further, the bearing housing 90 includes: a bottom plate 91, and fixing plates 92 symmetrically disposed at both ends of the bottom plate 91; the bearing 40 includes: the inner ring and the outer ring are opposite, the inner ring is sleeved between the symmetrical fixing plates 92, and the outer ring is used for being attached to the surface of the transmission belt 10; wherein the central axis of the bearing 40 is perpendicular to the driving direction of the driving belt 10.

The arrangement of the bearing seat 90 ensures that the outer ring of the bearing 40 can be stably attached to the transmission belt 10; the central axis of the bearing 40 is perpendicular to the transmission direction of the transmission belt 10, so that the rolling track of the bearing 40 is ensured to be consistent with the moving path of the transmission belt 10, and the phenomenon of offset is avoided.

In one embodiment of the application, the driving member 30 is a cylinder and the bearing 30 is a deep groove ball bearing.

In one embodiment of the application, the drive member 30 is a cylinder or motor and the bearing 30 is a needle bearing.

In one embodiment of the present application, the belt 10 is a belt or chain.

Optionally, the tensioning adjustment mechanism 20 further includes: a tension sensor and a main controller; the tension sensor is connected with the main controller and is configured to detect the real-time tension of the driving belt 10, generate a signal and transmit the signal to the main controller; and a main controller configured to parse the signal and control the driving shaft 31 to extend or retract according to the magnitude of the real-time tension.

The number of the tension sensors can be multiple, and the tension sensors are respectively arranged at different positions of the driving belt 10; tension sensors at different positions detect tension borne by the transmission belt 10 at different positions in real time, the main controller takes an average value as a current reference value after receiving different tension data, and the main controller is further configured with a preset tension value; if the current reference value is smaller than the preset tension value, the current reference value indicates that the driving belt 10 is loosened, so that the main controller controls the driving shaft 31 to eject to tension the driving belt 10, and the driving belt 10 is ensured to maintain a certain tension; if the current reference value is greater than the preset tension value, it indicates that the belt 10 is currently somewhat tight, so the main controller controls the drive shaft 31 to retract to loosen the belt 10 and relieve the pressure borne by the belt 10.

Example 2

An embodiment of the present application provides a conveyor based on embodiment 1.

A conveyor, comprising: the tensioning adjustment device provided in example 1.

Preferably, the transmission mechanism includes: a plurality of rollers; the transmission belt is wound on the surfaces of the rollers; the tensioning adjusting mechanism is arranged between any two adjacent rollers.

The tensioning adjusting mechanism can automatically adjust the extension or retraction of the driving shaft according to the real-time tensioning force of the driving belt, so that the driving belt is kept to run in a proper tensioning state, the trouble of manual adjustment is avoided, the maintenance cost is reduced, and the stability and the reliability of the conveyor are improved; the tension adjusting mechanism can automatically adjust the tension of the transmission belt according to different loads on different conveyors by matching the main controller with the tension sensor so as to meet the transportation requirements of the conveyors on different materials, and the adaptability is improved; because the tensioning adjustment mechanism can keep the proper tensioning state of the driving belt, the friction between the driving belt and the idler wheels is reduced, thereby reducing the abrasion between the driving belt and the idler wheels and prolonging the service lives of the driving belt and the idler wheels.

Preferably, the conveyor further comprises: the servo motor is connected with the roller and is configured to drive the roller to rotate; and the tensioning and adjusting mechanism is configured to be started when the roller rotates so as to tension the transmission belt.

The arrangement of the servo motor can realize the accurate control of the rotating speed and the torque of the roller; by the tensioning control of the tensioning adjusting mechanism and the accurate control of the servo motor, the conveyor can keep a high-efficiency stable running state in the running process, so that the conveying efficiency is improved, the failure rate is reduced, and the service life of the conveyor is prolonged.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the application, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the application.

Claims (10)

1. A tension adjustment device, comprising:

A drive belt (10) which is tensioned on the drive mechanism, and

A tension adjusting mechanism (20) arranged beside the transmission belt (10) and used for adjusting the tension of the transmission belt (10);

wherein the tension adjustment mechanism (20) comprises:

A bracket;

At least one adjusting assembly arranged on the support, wherein the adjusting assembly comprises a driving piece (30) and a bearing (40), the driving piece (30) is used for driving the bearing (40) to press the driving belt (10) along a first direction so as to enlarge the tension of the driving belt (10) and driving the bearing (40) to move along a second direction so as to reduce the tension of the driving belt (10), and the first direction is opposite to the second direction.

2. The tensioning adjustment device of claim 1, wherein the bracket comprises: at least one base for securing the adjustment assembly.

3. The tensioning adjustment device of claim 1, wherein the bracket comprises: at least two bases for fixing the adjusting assembly and at least one connecting piece for connecting two adjacent bases.

4. A tensioning adjustment device according to claim 3, characterized in that the base comprises a first base (50) and a second base (60); the first base (50) and the second base (60) are respectively arranged on two sides of the transmission belt (10) and keep a preset distance from the transmission belt (10);

The connector comprises a first plate (70) and a second plate (80); the two ends of the first plate (70) and the second plate (80) are respectively connected with the first base (50) and the second base (60).

5. A tensioning adjustment device according to claim 1, characterized in that when the number of adjustment assemblies is at least two, each bearing (40) is moved in the same direction or in different directions under the drive of the corresponding drive member (30).

6. The tension adjustment device of claim 1, wherein the adjustment assembly further comprises a bearing housing (90);

The driving piece (30) comprises a driving shaft (31), and the driving shaft (31) is connected with the bearing seat (90); the bearing (40) is mounted on the bearing housing (90).

7. The tensioning adjustment device according to claim 6, characterized in that the bearing block (90) comprises: a bottom plate (91) and fixing plates (92) symmetrically arranged at two ends of the bottom plate (91);

The bearing (40) comprises an inner ring and an outer ring which are opposite, the inner ring is sleeved between the symmetrical fixing plates (92), and the outer ring is used for being attached to the surface of the transmission belt (10);

Wherein the central axis of the bearing (40) is perpendicular to the transmission direction of the transmission belt (10).

8. The tension adjusting apparatus according to claim 1 or 5 or 6, wherein the driving member (30) is any one of a cylinder, an oil cylinder, and a motor.

9. The tensioning adjustment device according to claim 1 or 7, characterized in that the bearing (40) is a needle bearing or a deep groove ball bearing;

And/or the number of the groups of groups,

The transmission belt (10) adopts a belt or a chain.

10. A conveyor for a conveyor belt of the type comprising, characterized by comprising the following steps: a tensioning device as defined in any one of claims 1 to 9.