CN215334235U - Adjustable belt tensioning device - Google Patents

Abstract

The utility model relates to the field of belt wheel transmission devices, and particularly discloses an adjustable belt tensioning device, which comprises: the wheel seat, the swing arm subassembly that has swing arm and tensioning wheel seat, the take-up pulley that has the count hole, infrared sensor has first commentaries on classics piece, the adjusting part of second commentaries on classics piece and connecting rod, first nut component, second nut component, the elastic component who has spring and third nut component. According to the utility model, the tensioning wheel is arranged at the end part of the swing arm assembly, the rotation angle of the swing arm assembly can be conveniently adjusted and positioned through the adjusting assembly, so that the position of the tensioning wheel is changed, the swing arm assembly can elastically float through the elastic assembly, the elastic hardness of the tensioning wheel can be adjusted through adjusting the nut assembly in the elastic assembly, the counting hole is formed in the tensioning wheel, the infrared sensor is arranged on the side surface of the counting hole, the rotation speed of the tensioning wheel can be measured in real time, and the transmission speed of the belt can be calculated.

Description

Adjustable belt tensioning device

Technical Field

The utility model belongs to the field of belt wheel transmission devices, and particularly relates to an adjustable belt tensioning device.

Background

As an efficient crushing and screening device, the mobile crushing and screening station has the advantages of flexibility in maneuverability, high working efficiency and the like, and is widely applied to operation processes of various quarries, building demolition waste, mine operation and the like.

The crusher is a core part in the movable crushing and screening station, and the output end of a main power device of the screening station is connected with the power input end of the crusher through a belt pulley transmission system to drive the crusher to perform crushing operation; however, the belt pulley transmission system of the existing crusher has the following problems in the using process:

after the belt pulley is used for a period of time, the belt is loosened due to the influence of long-term tension, so that the belt needs to be tightly pushed by the tensioning device, but the position of the tensioning wheel is inconvenient to adjust by the existing tensioning device, so that the tension of the tensioning device is difficult to change conveniently, and when the belt transfers materials, the belt often suffers certain impact force or jumps, but the position of the tensioning wheel is relatively fixed, the effect of buffering the belt cannot be generated, the stability of the belt during transmission is influenced, and the service life of the belt is influenced; in the using process, the transmission speed of the belt pulley is not good, and particularly after the belt is aged and loosened, the measurement accuracy of the speed measuring device is not high.

The above background disclosure is only for the purpose of aiding understanding of the inventive concepts and solutions of the present invention, and it is not necessary for them to belong to the prior art of this patent application, and it should not be used for evaluating the novelty and inventive step of this application in the case that there is no clear evidence that the above contents are disclosed at the filing date of this patent application.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an adjustable belt tensioning device, so that the defects that the transmission of a belt pulley transmission system of the existing crusher is not stable, the tensioning device cannot buffer impact force, the adjustment is inconvenient and the speed measurement is inaccurate are overcome.

To achieve the above object, the present invention provides an adjustable belt tensioner comprising: a wheel seat including a first connection face and a second connection face; the swing arm assembly comprises a first end and a second end, the first end is hinged with the first connecting surface through a hinged support, the second end is provided with a rotatable tensioning wheel, and one side of the tensioning wheel is provided with a plurality of counting holes; an infrared sensor is arranged on the swing arm component, and the infrared sensor corresponds to the counting hole in position; the adjusting assembly comprises a first rotating block, a second rotating block and a connecting rod, the first rotating block is rotatably arranged at the second end, the second rotating block is rotatably arranged on the wheel seat, the connecting rod comprises a third end and a fourth end which are opposite, a thrust part is arranged between the third end and the fourth end, the third end is inserted into the first rotating block and is tightened through a first nut assembly, the thrust part is abutted against the first rotating block, and the fourth end is slidably inserted into the second rotating block and is limited through a second nut assembly; the elastic assembly is arranged on the connecting rod and located between the second rotating block and the thrust portion, the elastic assembly comprises a third nut assembly and a spring, the third nut assembly is arranged on the connecting rod in a sleeved mode, the position of the third nut assembly on the connecting rod is adjustable, and the spring is located between the third nut assembly and the second rotating block.

Preferably, in the above technical solution, the wheel seat includes a first seat plate and a second seat plate that are perpendicular to each other, the first connection surface is disposed on the first seat plate, the second connection surface is disposed on the second seat plate, and the first connection surface and the second connection surface are also perpendicular to each other.

Preferably, in the above technical scheme, a plurality of first rib plates are arranged between the first seat plate and the second seat plate, a certain interval is provided between each first rib plate, and the first rib plates are provided with abdicating holes.

Preferably, in the above technical scheme, the connecting device further comprises a connecting plate, the connecting plate is detachably arranged on the first connecting surface, the hinge seat is fixedly arranged at one end of the connecting plate, and the other end of the connecting plate is provided with a rotating block connecting seat.

Preferably, in the above technical solution, the second rotating block is rotatably mounted on the rotating block connecting seat.

Preferably, in the above technical scheme, the swing arm assembly further includes a swing arm, the swing arm includes two arm plates that are parallel to each other, a certain interval is provided between the arm plates and a plurality of second rib plates are welded, and the first rotating block is rotatably arranged between the two arm plates.

Preferably, in the above technical scheme, a detachable tension pulley seat is arranged at a swing end of the swing arm, the tension pulley is arranged on the tension pulley seat, and the infrared sensor is arranged on the tension pulley seat.

Preferably, in the above technical scheme, one side of the swing arm and the tension pulley seat is provided with a plurality of wire clamps, the periphery of the infrared sensor is provided with a protection plate, the protection plate is provided with a wire passing hole, and the wire passing hole is located between the wire clamps and the infrared sensor.

Preferably, in the above technical solution, the first nut assembly includes a first adjusting nut and a first locking nut that are abutted against each other, and the first adjusting nut is close to the first rotating block; the second nut assembly comprises a second adjusting nut and a second locking nut which are mutually abutted, and the second adjusting nut is close to the second rotating block; the third nut component comprises a third adjusting nut and a third locking nut which are mutually abutted, and the third adjusting nut is close to the spring.

Preferably, in the above technical scheme, a spring seat is arranged at an end of the spring, and the spring seat is slidably sleeved on the connecting rod and abuts against the third adjusting nut component.

Compared with the prior art, the utility model has the following beneficial effects:

1. according to the adjustable belt tensioning device, the tensioning wheel is arranged at the end part of the swing arm assembly, the rotating angle of the swing arm assembly can be conveniently adjusted and positioned through the adjusting assembly, so that the position of the tensioning wheel is changed, the swing arm assembly can elastically float through the elastic assembly, the elastic hardness of the tensioning wheel can be adjusted through adjusting the nut assembly in the elastic assembly, the counting hole is formed in the tensioning wheel, the infrared sensor is arranged on the side face of the tensioning wheel, the rotating speed of the tensioning wheel can be measured in real time, and the transmission rate of a belt can be calculated.

2. The two seat plates in the wheel seat are connected through the plurality of first rib plates arranged at intervals, so that the strength between the seat plates can be ensured, the whole weight of the wheel seat can be reduced, the first rib plates are provided with the abdicating holes, so that lines and pipelines in the crushing and screening device can pass through the first rib plates, the protection effect is achieved, and the effect of enabling the appearance to be attractive is achieved.

3. The swing arm in the swing arm assembly is of a hollow structure consisting of the wall plate and the second rib plate, so that the weight of the swing arm can be reduced, and parts such as a rotating block and the like are easy to mount.

4. According to the utility model, the wire clamp is arranged on one side of the swing arm, the protection plate is arranged on the periphery of the infrared sensor, the wire passing hole is formed in the protection plate, the protection plate can protect the infrared sensor, and the wire clamp and the wire passing hole can conveniently arrange the circuit of the infrared sensor.

Drawings

FIG. 1 is a block diagram of an adjustable belt tensioner of the present invention.

Fig. 2 is a structural view of the wheel seat.

Fig. 3 is a structural view of the swing arm assembly.

Fig. 4 is a block diagram of the adjustment assembly and the resilient assembly.

Description of the main reference numerals:

1-wheel seat, 11-first connecting surface, 12-second connecting surface, 13-first seat plate, 14-second seat plate, 15-first rib plate and 16-abdicating hole;

2-swing arm component, 21-first end, 22-second end, 23-swing arm, 231-arm plate, 232-second rib plate, 24-tensioning wheel seat, 25-wire clamp, 26-protection plate and 27-wire through hole;

3-free bearing;

4-tension wheel, 41-counting hole;

5-an infrared sensor;

6-adjustment assembly, 61-first rotation block, 62-second rotation block, 63-connecting rod, 64-third end, 65-fourth end, 66-thrust part, 67-first nut assembly, 671-first adjustment nut, 672-first locking nut, 68-second nut assembly, 681-second adjustment nut, 682-second locking nut;

7-elastic component, 71-third nut component, 711-third adjusting nut, 712-third locking nut, 72-spring, 73-spring seat;

8-connecting plate, 81-rotating block connecting seat.

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.

In the description of the present invention, it should be noted that the terms "central", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. The terms "first", "second" and "third", if any, are used for descriptive purposes only and for distinguishing between technical features and are not to be construed as indicating or implying relative importance or implying a number of indicated technical features or a precedence of indicated technical features.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

As shown in fig. 1 to 4, the adjustable belt tensioner in this embodiment comprises: the wheel seat 1, the first connection surface 11, the second connection surface 12, the first seat plate 13, the second seat plate 14, the first rib plate 15, the abdicating hole 16, the swing arm assembly 2, the first end 21, the second end 22, the swing arm 23, the arm plate 231, the second rib plate 232, the tension wheel seat 24, the wire clamp 25, the protection plate 26, the wire through hole 27, the hinge seat 3, the tension wheel 4, the counting hole 41, the infrared sensor 5, the adjusting assembly 6, the first rotating block 61, the second rotating block 62, the connecting rod 63, the third end 64, the fourth end 65, the thrust part 66, the first nut assembly 67, the first adjusting nut 671, the first locking nut 672, the second nut assembly 68, the second adjusting nut 681, the second locking nut, the elastic assembly 7, the third nut assembly 71, the third adjusting nut 711, the third locking nut 712, the spring 72, the spring seat 73, the connection plate 8, and the rotating block connection seat 81.

The wheel seat 1 consists of a first seat plate 13 and a second seat plate 14, one side of the first seat plate 13 and one side of the second seat plate 14 are welded with each other, the plate surfaces of the two seat plates are perpendicular to each other, so that the cross section of the wheel seat 1 is L-shaped, a first connecting surface 11 is arranged on the outer side of the first seat plate 13, a second connecting surface 12 is arranged on the outer side of the second seat plate 14, and the first connecting surface 11 and the second connecting surface 12 are also perpendicular to each other; a plurality of first rib plates 15 are welded between the first seat plate 13 and the second seat plate 14, the first rib plates 15 are parallel to each other, a certain interval is reserved between the first rib plates 15, a hole 16 is formed in each first rib plate 15, the connecting plate 8 is installed on the first connecting surface 12 through bolts, the hinged support 3 is welded at one end of the connecting plate 8, and the connecting seat 81 is welded at the other end of the connecting plate 8.

The swing arm assembly 2 comprises a swing arm 23 and a tension pulley seat 24, the swing arm 23 comprises two arm plates 231 which are parallel to each other, the arm plates 231 are L-shaped row plates, a certain interval is formed between the two arm plates 231, a plurality of second rib plates 232 are welded on the two arm plates 231, the second rib plates 232 are perpendicular to the plate surfaces of the arm plates 231, a certain distance is formed between the second rib plates 232, two end parts of the swing arm 23 are respectively a first end 21 and a second end 22, the first end 21 is rotatably installed on the hinged support 3, the tension pulley seat 24 is installed on the end surface of the second end 22 through bolts, the tension pulley 4 is installed on the tension pulley seat 24, one side of the tension pulley 4 is provided with a plurality of counting holes 41, and the counting holes 41 are uniformly distributed by using the circle center of the tension pulley 4; the welding of one side at tensioning wheel seat 24 has protection plate 26, infrared sensor 5 is still installed to one side at tensioning wheel seat 24, this infrared sensor 5 is arranged in protection plate 26, infrared sensor 5's signal measurement end is corresponding with the position of count hole 41, a plurality of clamps 25 are installed respectively to one side of swing arm 23 and tensioning wheel seat 24, seted up on protection plate 26 and crossed line hole 27, it is located between fastener 25 and infrared sensor 5 to cross line hole 27, infrared sensor 5's connecting wire can pass and cross line hole 27 and fix through fastener 25.

The adjusting assembly 6 comprises a first rotating block 61, a second rotating block 62 and a connecting rod 63, wherein the first rotating block 61 is rotatably arranged between the two arm plates 231 and is close to the second end 22, and the second rotating block 62 is rotatably arranged on a rotating block connecting seat 81; the connecting rod 63 comprises a third end 64 and a fourth end 65 which are opposite, external threads are machined on the peripheries of the third end 64 and the fourth end 65, a thrust part 66 is arranged on the third end 64 and the fourth end 65, the thrust part 66 is in a cone structure, a thrust surface is arranged at one end, facing the third end 64, of the thrust part 66 and is located at the bottom of the cone structure, the third end 64 is inserted into a through hole of the first rotating block 61 and extends outwards, then the third end is tightened by a first nut assembly 67, the thrust surface in the thrust part 66 is abutted against the first rotating block 61, the fourth end 65 is inserted into a through hole in the second rotating block 62 and extends outwards, a second nut assembly 68 is mounted on the fourth end 65 for limiting, the first nut assembly 67 comprises a first adjusting nut 671 and a first locking nut 672 which are abutted against each other, and the first adjusting nut 671 is close to the first rotating block 61; the second nut assembly 68 includes a second adjustment nut 681 and a second locking nut 682 abutting each other, the second adjustment nut 681 being adjacent to the second rotary block 62.

The elastic assembly 7 includes a third nut assembly 71, a spring 72, and a spring seat 73; the spring 72 is sleeved on the connecting rod 63 and positioned between the second rotating block 62 and the thrust part 66, one end of the spring 72 is provided with a spring seat 73, the other end of the spring 72 is abutted against the second rotating block 62, the spring seat 73 is sleeved on the connecting rod 63 in a sliding way and is abutted against a third adjusting nut component 71 arranged on the connecting rod 63, the third adjusting nut component 71 comprises a third adjusting nut 711 and a third locking nut 712 which are abutted against each other, and the position of the third adjusting nut 711 is close to the spring 72; when the position of the third nut assembly 71 is adjusted, the amount of compression of the spring 72 can be changed.

The working principle of an adjustable belt tensioner in this embodiment is explained in detail below to make the skilled person more aware of the utility model:

in use, the first connecting surface 11 of the wheel base 1 is mounted on the body of the crushing and screening station, the second adjusting nut 681 of the second nut assembly 68 of the adjusting assembly 6 is adjusted to enable the tensioning wheel 4 to be in a required position to tension the driving belt, then the second locking nut 682 is locked to prevent the second adjusting nut 681 from loosening, then the elastic hardness of the swing arm assembly 2 during swinging is adjusted according to the vibration condition of the belt pulley during operation, the third adjusting nut 711 is rotated during adjustment to change the compression amount of the spring 72, and then the third locking nut 712 is locked to prevent the third adjusting nut 711 from loosening.

When the belt pulley works, the tension pulley 4 can be driven to rotate, the infrared sensor 5 can measure the rotating speed of the tension pulley 4 according to the counting hole 41, and therefore the transmission speed of the transmission belt is indirectly obtained.

In summary, the tensioning wheel is mounted at the end of the swing arm assembly, the rotation angle of the swing arm assembly can be conveniently adjusted and positioned through the adjusting assembly, so that the position of the tensioning wheel is changed, the swing arm assembly can elastically float through the elastic assembly, the elastic hardness of the tensioning wheel can be adjusted through adjusting the nut assembly in the elastic assembly, the counting hole is formed in the tensioning wheel, the infrared sensor is arranged on the side face of the tensioning wheel, the rotation speed of the tensioning wheel can be measured in real time, and the transmission speed of the belt can be calculated.

The foregoing description of the specific exemplary embodiments of the utility model has been presented for the purposes of illustration and description and is not intended to limit the utility model to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching, although examples of the utility model are shown and described, the present examples are intended to be illustrative of the utility model and are not intended to be limiting of the utility model, the particular features, structures, materials or characteristics described may be suitably combined in any one or more of the examples or illustrations, the exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application, to thereby enable others skilled in the art to make modifications as necessary to the practice of the utility model without departing from the principles and spirit of the utility model, Alternatives, modifications, and variations are possible but are within the scope of the appended claims.

Claims (10)

1. An adjustable belt tensioner, comprising:

a wheel seat (1) comprising a first connection face (11) and a second connection face (12);

the swing arm assembly (2) comprises a first end (21) and a second end (22), the first end (21) is hinged with the first connecting surface (11) through a hinged support (3), the second end (22) is provided with a rotatable tension wheel (4), and one side of the tension wheel (4) is provided with a plurality of counting holes (41); an infrared sensor (5) is mounted on the swing arm assembly (2), and the infrared sensor (5) corresponds to the counting hole (41);

an adjustment assembly (6) comprising a first rotation block (61), a second rotation block (62) and a connecting rod (63), wherein the first rotation block (61) is rotatably arranged at the second end (22), the second rotation block (62) is rotatably arranged on the wheel seat (1), the connecting rod (63) comprises a third end (64) and a fourth end (65) which are opposite, a thrust part (66) is arranged between the third end (64) and the fourth end (65), the third end (64) is inserted into the first rotation block (61) and is tightened through a first nut assembly (67), the thrust part (66) is abutted against the first rotation block (61), and the fourth end (65) is slidably inserted into the second rotation block (62) and is limited through a second nut assembly (68);

elastic component (7), it is located on connecting rod (63) and is located second commentaries on classics piece (62) with between thrust portion (66), elastic component (7) are including the cover establish third nut component (71) and spring (72) on connecting rod (63), third nut component (71) are in the position on connecting rod (63) is adjustable, spring (72) are located third nut component (71) with between second commentaries on classics piece (62).

2. Adjustable belt tensioner according to claim 1, characterized in that the wheel holder (1) comprises a first seat plate (13) and a second seat plate (14) perpendicular to each other, the first connection surface (11) being provided on the first seat plate (13), the second connection surface (12) being provided on the second seat plate (14), and the first connection surface (11) and the second connection surface (12) also being perpendicular to each other.

3. The adjustable belt tensioner according to claim 2, wherein a plurality of first rib plates (15) are arranged between the first seat plate (13) and the second seat plate (14), a certain interval is arranged between the first rib plates (15), and the first rib plates (15) are provided with abdicating holes (16).

4. The adjustable belt tensioner according to claim 1, further comprising a connecting plate (8), wherein the connecting plate (8) is detachably disposed on the first connecting surface (11), the hinge base (3) is fixedly disposed at one end of the connecting plate (8), and the other end of the connecting plate (8) is provided with a rotating block connecting base (81).

5. An adjustable belt tensioner as claimed in claim 4, wherein the second swivel (62) is rotatably mounted on the swivel mount (81).

6. The adjustable belt tensioner according to claim 1, wherein the swing arm assembly (2) further comprises a swing arm (23), the swing arm (23) comprises two arm plates (231) parallel to each other, a certain interval is formed between the arm plates (231) and a plurality of second rib plates (232) are welded, and the first rotating block (61) is rotatably arranged between the two arm plates (231).

7. The adjustable belt tensioner of claim 6, wherein the swing end of the swing arm (23) is provided with a detachable tensioner shoe (24), the tensioner (4) is provided on the tensioner shoe (24), and the infrared sensor (5) is provided on the tensioner shoe (24).

8. The adjustable belt tensioner as claimed in claim 7, wherein a plurality of wire clamps (25) are provided at one side of the swing arm (23) and the tensioner shoe (24), a protection plate (26) is provided at the periphery of the infrared sensor (5), a wire passing hole (27) is provided on the protection plate (26), and the wire passing hole (27) is located between the wire clamps (25) and the infrared sensor (5).

9. An adjustable belt tensioner as claimed in claim 1, characterised in that the first nut assembly (67) comprises a first adjusting nut (671) and a first lock nut (672) abutting each other, the first adjusting nut (671) being adjacent the first rotary block (61); the second nut assembly (68) comprises a second adjusting nut (681) and a second locking nut (682) which abut against each other, and the second adjusting nut (681) is close to the second rotating block (62); the third nut assembly (71) comprises a third adjusting nut (711) and a third locking nut (712) which are mutually abutted, and the third adjusting nut (711) is close to the spring (72).

10. An adjustable belt tensioner as claimed in claim 1, characterised in that a spring seat (73) is provided at the end of the spring (72), the spring seat (73) slidably fitting over the connecting rod (63) and abutting the third nut assembly (71).

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