Belt conveyor tail stroke tensioning device

Abstract

The utility model provides a belt conveyor tail stroke tensioning device which comprises a fixedly-arranged base and a sliding seat which is arranged on the top of the base and is in sliding fit with the base, a belt wheel is arranged on the sliding seat, a rotating drum is arranged at one end of the base in a rotating mode, a steel cable arranged in a winding mode is connected to the rotating drum and is connected with the sliding seat, and the belt wheel is arranged on the sliding seat. And the base is also provided with a driving locking mechanism which is in transmission connection with the rotary drum. The adjustable tensioning device has the adjustable tensioning function, and the stability of the tensioning effect is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of belt conveyor tensioning devices, in particular to a belt conveyor tail travel tensioning device. Background Art

[0002] The belt conveyor includes a belt roller, a transmission belt and other structures. The transmission belt is tensioned by the belt roller so that there is sufficient friction between the transmission belt and the belt roller to ensure that when the belt roller rotates, it can efficiently drive the transmission belt to move.

[0003] The existing belt conveyor tensioning device generally provides tensioning force by setting a weight on the tail belt roller. In this method, on the one hand, the hanging object that generates the tensioning force often needs to occupy space, and on the other hand, this tensioning force does not have an adjustable function, and the tensioning structure is unstable due to the hanging object. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a belt conveyor tail travel tensioning device, which has an adjustable tensioning effect and can ensure the stability of the tensioning effect.

[0005] According to an embodiment of the utility model, a belt conveyor tail stroke tensioning device comprises a fixed base, a slide seat arranged on the top of the base and slidingly cooperated with the base, a pulley is provided on the slide seat, a rotating drum is rotatably provided at one end of the base, a winding steel cable is connected to the rotating drum, the steel cable is connected to the slide seat, and a driving locking mechanism is also provided on the base which is transmission-connected to the rotating drum.

[0006] Preferably, the drive locking mechanism includes a drive box fixed on the base, a worm wheel rotatably arranged in the drive box, a worm rotatably arranged in the drive box and meshing with the worm wheel, the worm is coaxially connected to a power part, the worm wheel is coaxially connected to a transmission rod, and the transmission rod passes through the drive box and is coaxially connected to the rotating drum.

[0007] Further preferably, the power component is a servo motor, a cavity is provided at one end of the slide close to the drive locking mechanism, a pull block is provided in the cavity, a pressure sensor in contact with the pull block is provided on the inner wall of the cavity close to the drive locking mechanism, and the steel cable passes through the side wall of the cavity and is connected to the pull block.

[0008] Further preferably, two parallel slide rails are provided on the base, a group of pulleys are respectively provided on both sides of the slide seat, the two groups of pulleys respectively cooperate with the corresponding slide rails, and a limiting ring located on the inner side of the slide rail is provided on the inner side of the pulley.

[0009] Further preferably, two rotating drums are provided, each of which is independently connected to a steel cable and a driving locking mechanism, and the two steel cables are respectively connected to two sides of the slide seat.

[0010] Further preferably, the axis of the rotating drum is parallel to the axis of the pulley, the steel cable is perpendicular to the axis of the rotating drum, and the sliding path of the sliding seat is parallel to the steel cable.

[0011] Still further preferably, a plurality of mounting legs are fixedly connected to the bottom of the base.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] A rotating drum is arranged on the base, and a steel cable is connected to the rotating drum. The steel cable is connected to a slide seat on which a pulley is installed. The rotating drum is also connected to a driving locking mechanism. The driving locking mechanism can drive the rotating drum to rotate forward and reverse. The slide seat can be driven to move by winding and unwinding the steel cable, and then the tensioning force generated by the steel cable on the slide seat can be continuously adjusted. After the adjustment is completed, the driving locking mechanism generates a locking effect on the rotating drum to ensure that the rotating drum cannot rotate, thereby making the tensioning effect more stable. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a belt conveyor tail travel tensioning device.

[0015] Figure 2 The utility model is a schematic diagram of the internal structure of a driving box in a belt conveyor tail travel tensioning device.

[0016] Figure 3 The utility model is a schematic diagram of the internal structure of a hollow cavity in a belt conveyor tail travel tensioning device.

[0017] In the above drawings: 1, base; 101, slide rail; 102, mounting leg; 2, slide seat; 201, cavity; 202, pull block; 203, pressure sensor; 3, rotating drum; 4, steel cable; 5, drive locking mechanism; 501, drive box; 502, worm gear; 503, worm; 504, power part; 505, transmission rod; 6, pulley; 601, limit ring. DETAILED DESCRIPTION

[0018] The technical solution of the present utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] like Figure 1As shown, a belt conveyor tail travel tensioning device comprises a fixed base 1, a slide seat 2 arranged on the top of the base 1 and slidingly matched with the base 1, a pulley is arranged on the slide seat 2, a rotating drum 3 is rotatably arranged at one end of the base 1, a steel cable 4 is connected to the rotating drum 3, and the steel cable 4 is connected to the slide seat 2, and a driving locking mechanism 5 is also provided on the base 1 and is transmission-connected to the rotating drum 3;

[0020] The rotating drum 3 can be driven to rotate by driving the locking mechanism 5, and the rotating drum 3 rotates to realize the work of winding or unwinding the steel cable 4, thereby generating a tensioning force on the slide 2. After the adjustment is completed, the driving locking mechanism 5 prevents the rotating drum 3 from rotating under the reaction force of the steel cable 4, which causes the tensioning force to change, and can ensure the stability of the tensioning effect, and has a certain adjustment effect;

[0021] Specifically, Figure 2 As shown, the driving locking mechanism 5 includes a driving box 501 fixed on the base 1, a worm wheel 502 rotatably arranged in the driving box 501, and a worm 503 rotatably arranged in the driving box 501 and meshing with the worm wheel 502, the worm 503 is coaxially connected with a power piece 504, the worm wheel 502 is coaxially connected with a transmission rod 505, and the transmission rod 505 penetrates the driving box 501 and is coaxially connected with the rotating drum 3;

[0022] The worm 503 is driven to rotate by the power member 504, the worm 503 drives the worm wheel 502 to rotate, and the worm wheel 502 drives the drum 3 to rotate through the transmission rod 505, so as to achieve the purpose of winding or unwinding; when the lead angle of the worm 503 and the worm wheel 502 is within a certain range, the worm wheel 502 cannot drive the worm 503 to rotate, so after the adjustment is completed, the position of the worm wheel 502 is fixed, so that the drum 3 does not produce a rotational motion;

[0023] In order to facilitate the control and adjustment of the tension force, in a further embodiment, Figure 3 As shown, the power member 504 is a servo motor, a cavity 201 is provided at one end of the slide 2 close to the driving locking mechanism 5, a pull block 202 is provided in the cavity 201, a pressure sensor 203 in contact with the pull block 202 is provided on the inner wall of the cavity 201 close to the driving locking mechanism 5, and the steel cable 4 passes through the side wall of the cavity 201 and is connected to the pull block 202;

[0024] The servo motor and the pressure sensor 203 are connected to the PLC controller, and the rotational movement of the worm 503 is adjusted according to the pressure value detected by the pressure sensor 203;

[0025] In order to limit the moving path of the slide 2, in a further embodiment, two parallel slide rails 101 are provided on the base 1, and a group of pulleys 6 are respectively provided on both sides of the slide 2. The two groups of pulleys 6 are respectively matched with the corresponding slide rails 101. The inner side of the pulley 6 is provided with a limit ring 601 located on the inner side of the slide rail 101. The limit ring 601 and the slide rail 101 are clearance matched, and the clearance is zero, so that the slide 2 can only move along the direction of the slide rail 101.

[0026] In order to improve the force stability of the pulley, in a further embodiment, two rotating drums 3 are provided, each of which is independently connected to a steel cable 4 and a driving locking mechanism 5, and two cavities 201 are provided on the slide 2. The two steel cables 4 are respectively connected to the pull blocks 202 in the two cavities 201, and the two servo motors are adjusted so that the tensioning forces on the two steel cables 4 are consistent, so as to ensure the tensioning stability of the pulley;

[0027] Furthermore, the axis of the drum 3 is parallel to the axis of the pulley, the steel cable 4 is perpendicular to the axis of the drum 3 , the sliding path of the slide seat 2 is parallel to the steel cable 4 , and the axis of the pulley is perpendicular to the slide rail 101 .

[0028] Specifically, a plurality of mounting legs 102 are fixedly connected to the bottom of the base 1 , and mounting holes may be provided at the bottom of the mounting legs 102 to facilitate fixing the base 1 .

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A belt conveyor tail travel tensioning device, characterized in that: The invention comprises a fixed base (1), a slide seat (2) arranged on the top of the base (1) and slidably matched with the base (1), a pulley is arranged on the slide seat (2), a rotating drum (3) is rotatably arranged at one end of the base (1), a steel cable (4) wound around the rotating drum (3) is connected, and the steel cable (4) is connected to the slide seat (2), and the base (1) is also provided with a driving locking mechanism (5) drivingly connected to the rotating drum (3).

2. A belt conveyor tail travel tensioning device according to claim 1, characterized in that: The drive locking mechanism (5) comprises a drive box (501) fixed on the base (1), a worm wheel (502) rotatably arranged in the drive box (501), and a worm (503) rotatably arranged in the drive box (501) and meshing with the worm wheel (502); the worm (503) is coaxially connected to a power piece (504); the worm wheel (502) is coaxially connected to a transmission rod (505); and the transmission rod (505) passes through the drive box (501) and is coaxially connected to the rotating drum (3).

3. A belt conveyor tail travel tensioning device according to claim 2, characterized in that: The power part (504) is a servo motor. A cavity (201) is provided at one end of the slide seat (2) close to the driving locking mechanism (5). A pull block (202) is provided in the cavity (201). A pressure sensor (203) in contact with the pull block (202) is provided on an inner wall of one side of the cavity (201) close to the driving locking mechanism (5). The steel cable (4) passes through the side wall of the cavity (201) and is connected to the pull block (202).

4. The belt conveyor tail travel tensioning device according to claim 1, characterized in that: Two parallel slide rails (101) are provided on the base (1), and a group of pulleys (6) are respectively provided on both sides of the slide seat (2). The two groups of pulleys (6) are respectively matched with the corresponding slide rails (101), and the inner side of the pulley (6) is provided with a limiting ring (601) located on the inner side of the slide rail (101).

5. A belt conveyor tail travel tensioning device according to any one of claims 1 to 4, characterized in that: Two rotating drums (3) are provided, each of which is independently connected to a steel cable (4) and a driving locking mechanism (5), and the two steel cables (4) are respectively connected to two sides of the slide seat (2).

6. A belt conveyor tail travel tensioning device according to claim 5, characterized in that: The axis of the rotating drum (3) is parallel to the axis of the pulley, the steel cable (4) is perpendicular to the axis of the rotating drum (3), and the sliding path of the sliding seat (2) is parallel to the steel cable (4).

7. The belt conveyor tail travel tensioning device according to claim 5, characterized in that: A plurality of mounting legs (102) are fixedly connected to the bottom of the base (1).

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