CN216111987U

CN216111987U - Belt tensioning device

Info

Publication number: CN216111987U
Application number: CN202121681417.0U
Authority: CN
Inventors: 刘宗祥; 姜山
Original assignee: SHANDONG TIANYU CONSTRUCTION MACHINERY CO Ltd
Current assignee: SHANDONG TIANYU CONSTRUCTION MACHINERY CO Ltd
Priority date: 2021-07-23
Filing date: 2021-07-23
Publication date: 2022-03-22
Anticipated expiration: 2031-07-23

Abstract

The utility model provides a belt tensioning device, which comprises: the pawl is fixed on the belt pulley; the detection device is arranged on one side of the pawl; the power device is electrically connected with the detection device; and one end of the connecting rod is fixedly connected with the power device, and the other end of the connecting rod is fixedly connected with the belt pulley. The belt tensioning device disclosed by the utility model can improve the working efficiency.

Description

Belt tensioning device

Technical Field

The utility model relates to the field of mechanical transmission, in particular to a belt tensioning device.

Background

After the belt feeder was used a period, the belt can relax, and the flexible volume and the wearing and tearing condition of belt all rise through manual adjustment belt feeder to the belt at present. The tightness degree of the belt is solved by timing inspection and manual adjustment, so that the labor intensity is increased. The belt cannot be tensioned in time due to untimely discovery, so that the service life of the belt is shortened, the belt is abraded, the production is delayed and the like due to the deviation of the belt.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned shortcomings of the prior art, the present invention provides a belt tensioner to solve the above-mentioned problems, and the belt tensioner of the present invention can improve the working efficiency, increase the service life of the belt, and save the labor cost.

To achieve the above and other related objects, the present invention provides a belt tensioner, comprising:

the pawl is fixed on the belt pulley;

the detection device is arranged on one side of the pawl;

the power device is electrically connected with the detection device;

and one end of the connecting rod is fixedly connected with the power device, and the other end of the connecting rod is fixedly connected with the belt pulley.

In an example of the present invention, the belt tensioning device is disposed on a base, and the base includes a first base and a second base, and the first base is fixedly connected to the second base.

In an example of the present invention, the belt tensioner further includes a mating key fixed to the second base.

In an example of the present invention, the belt tensioning device further includes a housing, the housing is disposed on the second base, and the matching key is located in the housing.

In one example of the utility model, the shell is internally provided with a beam rod, and the beam rod is movably connected with the detection device.

In one example of the utility model, the bearing of the belt pulley is provided with a sliding bearing bush, which is fixedly connected with the connecting rod.

In one example of the utility model, one side of the sliding bearing sleeve is provided with a groove which is clamped on the cross beam rod and allows the sliding bearing sleeve to slide on the cross beam rod.

In one example of the utility model, one end of the sliding bearing sleeve is provided with a connecting port, the connecting port is provided with an inner hole, and the connecting rod penetrates through the connecting port to the inner hole.

In one example of the utility model, the connecting rod is provided with a first shaft sleeve and a second shaft sleeve, the first shaft sleeve is positioned on one side of the connecting port, and the second shaft is positioned on the other side of the connecting port.

In one example of the present invention, a rack is provided on one side of the mating key to allow the pawl to engage with the rack.

According to the belt tensioning device, the detection device and the pawl are arranged, the position of the pawl is detected by the detection device, the belt is judged to be in error tightness, and a prompt signal is sent to replace manual inspection so that the belt can be found to be loose in time. Through the cooperation of power device and connecting rod, realize that the belt pulley is taut automatically. Through setting up the kit, fix the pawl relatively on the base. The belt tensioning device provided by the utility model can find the problem of belt looseness in time, improve the working efficiency, can automatically tension the belt, save labor, ensure that the tensioned belt does not need to be adjusted repeatedly, further improve the working efficiency and save electric power.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural view of the belt tensioner of the present invention.

Fig. 2 is a schematic view showing a partially enlarged structure of the housing according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, the belt drive is capable of producing a continuous rotational motion, transmitting force from one drive wheel to the other, requiring adjustment of the tightness of the belt 730 to avoid slippage of the belt 730, etc. Usually, the tensioning belt is manually adjusted, that is, the belt pulley 700 is fixed after the distance between the belt pulleys 700 is manually dragged. However, the belt 730 cannot be kept in a tensioned state all the time during the operation of the belt 730, and needs to be adjusted repeatedly.

Referring to fig. 1, in one embodiment of the present invention, a belt tensioner includes a pawl 500, a detecting device 400, a power device 100 and a connecting rod 200. The pawl 500 is fixedly provided on the pulley 700, and particularly, may be provided on the connecting rod 200 fixedly connected to the pulley 700. The detecting means 400 is provided at one side of the ratchet 500 to detect the position of the ratchet 500. The power device 100 is electrically connected to the detection device 400, and when the detection device 400 cannot detect the pawl 500 due to the movement of the pawl 500, the detection device 400 can send an abnormal signal to the power device 100, and the power device 100 pulls the connecting rod 200 to reset the pawl 200, so that the detection device 400 can detect the pawl 500.

Referring to fig. 1, in an embodiment of the present invention, the belt tensioner is fixedly disposed on a base, the base includes a first base 800 and a second base 810, the first base 800 is fixedly disposed on the ground, and the second base 810 is fixedly connected to the first base 800, and the belt tensioner is fixed and supported by the first base 800 and the second base 810. The power device 100 is fixed on the second base 810, for example, the power device 100 is fixedly connected with the second base 810 through the fixing seat 130. Specifically, one side of the fixing base 130 is fixedly connected to the power device 100, and the other side of the fixing base 130 is fixedly connected to the second base 810. The power unit 100 is, for example, a motor 110, and in this case, a push rod 120 is provided between the power unit 100 and the connecting rod 200, and the push rod 120 is an electric driving unit that converts the rotational motion of the motor 110 into the linear reciprocating motion of the connecting rod 200, and the connecting rod 200 is cyclically reciprocated toward the pulley 700 by the forward and reverse rotation of the motor 110. In this embodiment, one end of the connecting rod 200 is fixedly connected to the push rod 120, and the other end of the connecting rod 200 is fixedly connected to the sliding bearing sleeve 710 of the belt pulley 700, so that the push rod 120 drives the belt pulley 700 to move toward the motor 100 or away from the motor 100 by the forward and reverse rotation of the starting motor 110, and drives the sliding bearing sleeve 710 to move, thereby driving the belt pulley 700 to move.

Referring to fig. 1 and 2, in one embodiment of the present invention, one end of the connecting rod 200 is fixedly connected to the push rod 120, and the other end thereof passes through the housing 300 and is fixedly connected to the pulley 700. Specifically, the connecting rod 200 is also fixedly connected with the sliding bearing sleeve 710 through the connecting port 711. The connecting rod 200 is further provided with a first bushing 210 and a second bushing 220 at one end fixedly connected with the sliding bearing bushing 710. The first bearing housing 210 is provided on the connecting rod 200 at one side of the connection port 711 of the sliding bearing housing 710, and the second bearing housing 220 is provided on the connecting rod 200 at the other side of the connection port 711. Specifically, an inner hole 712 is formed in the connection port 711, and the connection rod 200 passes through the connection port 711 to the inner hole 712. In the inner hole 712, the second bearing sleeve 220 is disposed on the connecting rod 200, and the connecting rod 200 is fixedly connected to the sliding bearing sleeve 710 through the first shaft sleeve 210 and the second shaft sleeve 220, so as to drive the belt pulley 700 to move along with the movement of the connecting rod 200, thereby achieving the purpose of tensioning the belt 730.

Referring to fig. 1 and 2, in an embodiment of the present invention, the housing 300 is fixedly disposed on the second base 810, the beam rod 310 is disposed in the housing 300, the detecting device 400 is movably disposed on the beam rod 310, and the position of the detecting device 400 on the beam rod 310 is adjustable. A sliding bearing sleeve 710 is disposed within the housing 300 and the sliding bearing sleeve 710 is disposed on a bearing 720, the bearing 720 being disposed within a pulley 700, the pulley 700 being located on one side of the housing 300, the bearing 720 being, for example, a UCT bearing. One side of the sliding bearing sleeve 710 is further provided with a groove 713, the groove 713 is clamped on the beam rod 310, when the sliding bearing sleeve 710 is under tension, the groove 713 slides along the direction of the beam rod 310, the sliding bearing sleeve 710 moves, and therefore the belt pulley 700 is driven to move.

Referring to fig. 1, in one embodiment of the present invention, the detecting device 400 is movably connected to the beam rod 310 and is located at one side of the pawl 500, and the pawl 500 is fixed to the connecting rod 200. The detecting device 400 is, for example, a proximity switch, and is used to detect the position of the pawl 500, and when the detecting device 400 cannot detect the position of the pawl 500, a control signal is provided to a computer or an electric control device, and the electric control device controls the power device 100 to tension the belt 730. For example, when the position of the pulley 700 moves to a side far away from the motor 100, the belt 730 is loosened, the pawl 500 moves correspondingly along with the pulley 700 in the same direction, the pawl 500 exceeds the detection range of the detection device 400, the detection device 400 cannot detect the pawl 500, the detection device 400 provides a belt 730 loosening signal for the computer and the electric control device, when the belt 730 is adjusted because of the loosening, the power device 100 drives the pulley 700 to move to a side near the motor 100 through the connecting rod 200, the pawl 400 moves along with the movement of the connecting rod 200 in the same direction, so that the detection device 400 detects the pawl 500, and the detection device 400 provides a pulley tension signal for the computer and the electric control device.

Referring to fig. 1, in an embodiment of the utility model, the belt tensioner further includes a mating key 600, and the mating key 600 is fixed on the second base 810 and located in the housing 300. One side of the matching key 600 is provided with a plurality of racks, for example, the number of the racks is multiple, the pawl 500 is clamped in the space between two adjacent racks, and the other side of the matching key 600 is attached to the second base 810. Through the matching of the matching key 600 and the pawl 500, after the power device 100 tightly tensions the belt 730, the pawl 500 is clamped and fixed in the matching key 600, so that after the power device 100 completes the tightening task, the power device 100 is immediately powered off by clamping and fixing the pawl 500 in the matching key 600, and the belt 730 also keeps a tight state. The number of pawls 500, mating keys 600, and detection devices 400 may be, for example, 2 each.

Referring to fig. 1, in an embodiment of the present invention, for example, when the position of the pulley 700 is moved to a side away from the motor 100, the belt 730 is loosened, the detecting device 400 cannot detect the pawl 500, the detecting device 400 provides a belt 730 loosening signal to the computer and the electric control device, a worker checks the belt 730 loosening condition through a signal provided by the computer or the electric control device, adjusts the position of the detecting device 400 according to a field condition, moves the detecting device 400 to a side close to the motor 100, and the detecting device 400 moves a distance that the belt 730 is tightened after the pulley 700 is moved to a side close to the motor 100. After the detecting device 400 adjusts the moving position, the electric control device controls the motor 110 to transmit, the push rod 120 generates a pulling force moving to one side close to the direction of the motor 100, and drives the connecting rod 200, the sliding bearing sleeve 710 and the pawl 500 fixed on the connecting rod to move in the same direction, so that the belt pulley 700 moves to one side close to the direction of the motor 100, when the detecting device 400 detects the pawl 500, a signal for tensioning the belt pulley 700 is provided for the computer and the electric control device, the electric control device stops the rotation of the motor 100, the pawl 500 is clamped and fixed on the matching key 600, and the belt 730 is always in a tensioning state.

In the description of the present specification, reference to the description of the terms "present embodiment," "example," "specific example," 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 utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The embodiments of the utility model disclosed above are intended merely to aid in the explanation of the utility model. The examples are not intended to be exhaustive or to limit the utility model to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best utilize the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A belt tensioner, comprising:

the pawl is fixed on the belt pulley;

the detection device is arranged on one side of the pawl;

the power device is electrically connected with the detection device;

2. The belt tensioner as claimed in claim 1, wherein the belt tensioner is disposed on a base, and the base comprises a first base and a second base, and the first base is fixedly connected to the second base.

3. The belt tensioner as in claim 1, further comprising a mating key affixed to the second base.

4. The belt tensioner as claimed in claim 3, further comprising a housing disposed on the second base, wherein the mating key is located in the housing.

5. The belt tensioner as claimed in claim 4, wherein a beam rod is disposed in the housing, and the beam rod is movably connected to the detecting device.

6. The belt tensioner as claimed in claim 1, wherein the pulley is provided with a sliding bearing sleeve, and the sliding bearing sleeve is fixedly connected to the connecting rod.

7. The belt tensioner as claimed in claim 6, wherein a groove is formed on one side of the sliding bearing sleeve, and the groove is engaged with the beam rod and allows the sliding bearing sleeve to slide on the beam rod.

8. The belt tensioning device as claimed in claim 6, wherein a connection port is provided at one end of the sliding bearing sleeve, the connection port is provided with an inner hole, and the connecting rod passes through the connection port to the inner hole.

9. The belt tensioner as claimed in claim 8, wherein the connecting rod has a first sleeve and a second sleeve, the first sleeve is located on one side of the connecting port, and the second sleeve is located on the other side of the connecting port.

10. The belt tensioner as claimed in claim 3, wherein a rack is provided on one side of the mating key to allow the pawl to engage with the rack.