Double-side tensioning speed difference adjusting device for conveyor belt of sealing-tape machine

Abstract

The utility model relates to a belt conveyor double-side tensioning speed difference adjusting device which comprises a tail frame, a roller is arranged on the tail frame, a conveyor belt is installed on the roller, the two ends of a rotating shaft of the roller are installed in a bearing seat, the bearing seat is fixedly installed on a sliding seat, and a driving motor is fixedly installed at the middle point of a connecting beam of the tail frame. A reversing transmission is installed at the lower end of the driving motor, a left output shaft and a right output shaft of the reversing transmission are connected with a driving rod through manual clutches, the other end of the driving rod is connected with a lead screw through a reverser, the lead screw is parallel to the conveying belt and located on the lower sides of the two sliding seats, and a moving block is installed on the lead screw in a threaded mode. And the sliding seat is fixedly connected with the moving block. The device is driven by the motor, so that manpower is saved; the reversing transmission drives the two sliding seats to move at the same time, and the adjusting speed is high; the sliding seat on any side can be controlled to move independently through the manual clutch, and the moving distance and speed of the two sides are better coordinated.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of the deviation rectification of the conveying belt, and particularly relates to a double-side tension quick-difference adjusting device for a conveyor belt of a rubber belt machine. BACKGROUND

[0002] The rubber belt machine is a conveying device and is used for conveying a large amount of production materials in a factory. The basic structure of the rubber belt machine comprises a conveyor belt, a driving drum and a driven drum. The driving drum is arranged at the head of the rubber belt machine and is provided with a driving motor and a speed reducer and other power driving structures, which are used for driving the conveyor belt to move by friction. The driven drum is arranged at the tail of the rubber belt machine and is also rotated under the action of friction when the conveyor belt moves. The driven drum serves to support and change the direction of the conveyor belt.

[0003] During the installation and maintenance of the rubber belt machine, the driving drum is usually fixed, and the tension of the conveyor belt is controlled by adjusting the driven drum. The adjustment of the driven drum mainly includes the following two cases.

[0004] First, when the conveyor belt is installed or maintained, the driven drum needs to be moved forward as a whole to relax the conveyor belt, and then the conveyor belt and the interface are maintained. After the maintenance of the conveyor belt is completed, the driven drum is moved backward, so that the conveyor belt can be closely attached to the drum, and the conveyor belt has sufficient tension, so that the traction force can be effectively transmitted.

[0005] Second, after the rubber belt machine is operated for a period of time, the tension of the conveyor belt on both sides is not uniform, which is easy to cause the deviation of the conveyor belt. In the prior art, the position of one end of the driven drum is adjusted to control the deviation of the conveyor belt.

[0006] For the above first demand, the utility model discloses a patent, the announcement number is CN222063143U, the application date is April 26, 2024, and discloses a belt conveyor spiral tensioning device, which adopts worm gear spiral tensioning device to adjust the tension travel of tail-end redirection roller, has the advantages of labor saving, large tensioning torque and reliable tensioning effect. But it also has obvious shortcomings: 1) it uses manual rotation to realize screw rotation, and then moves the slide, because the structure kinetic energy conversion efficiency is very low, the artificial operation process takes a long time, specifically, if 300mm tension travel needs to be adjusted, the speed ratio of worm gear is generally above 1:8, the larger the speed ratio, the more time-consuming, the conventional screw rod selects 6mm pitch, and 1.5 seconds are needed for rotating a handle, 300÷6×8×1.5÷60=10, through the selection of basic parameters, 300mm travel needs 2 persons, respectively rotating single handle, and about 10 minutes are consumed. The labor intensity of the staff rotating the hand wheel for 10 minutes is high; 2) although it can be adjusted on both sides at the same time, two workers need to operate, different people have different efforts, and the two sides may not be coordinated, and one end may be insufficient or over-adjusted. Utility model content

[0007] The technical problem to be solved by the utility model is how to improve the speed of belt conveyor tension adjustment.

[0008] The utility model solves the problem by adopting the technical scheme of:

[0009] A belt conveyor double-side tension speed difference adjustment device, which comprises a tail frame, a roller arranged on the tail frame, a conveyor belt installed on the roller, two ends of a rotating shaft of the roller installed in a bearing seat, the bearing seat fixedly installed on a sliding seat, a driving motor fixedly installed at the midpoint of a tail frame connecting beam, a reversing gear box installed at the lower end of the driving motor, a left output shaft and a right output shaft of the reversing gear box connected with driving rods through manual clutches respectively, the driving rods connected with a lead screw through a reversing device at the other end, the lead screw arranged in parallel with the conveyor belt and located at the lower side of the two sliding seats, and a moving block threadedly installed on the lead screw; the sliding seat is fixedly connected with the moving block.

[0010] Compared with the prior art, the utility model has the beneficial effects of:

[0011] The utility model drives the sliding seat to move through the motor, greatly saves manpower and accelerates the moving speed of the roller; the utility model makes the two sliding seats move synchronously or separately through the cooperation of the reversing gear box and the manual clutch, so that the movement coordination of the two ends of the roller is better, and the roller can be adjusted to the predetermined state faster.

[0012] As a preferred further technical scheme of the above structure,

[0013] Optionally, the reversing gear includes a bevel gear pair, wherein the main gear shaft end is fixedly connected with the driving motor main shaft, the main gear is engaged with the driven gear, the output shaft of the driven gear extends to the outside of the casing of the reversing gear, and the main gear to the driven gear is a speed reduction transmission; the motor power is transmitted to the two side driving rods through gear transmission; and the problem of too fast motor speed is solved through the transmission ratio.

[0014] Optionally, the manual clutch comprises a first clutch end, a second clutch end and a transmission control cylinder, the first clutch end and the second clutch end are each composed of a baffle and a connecting shaft, the outer wall of the connecting shaft is fixedly connected with a transmission tooth, the outer wall of the transmission control cylinder is fixedly connected with a hand lever, and the inner wall of the transmission control cylinder is provided with a control tooth which is engaged with the transmission tooth, the baffle of the first clutch end is fixedly connected with the end portion of the driving rod, the baffle of the second clutch end is fixedly connected with the end portion of the output shaft of the reversing gear, the transmission control cylinder and the connecting shaft of the first clutch end are equal in length, the connecting shaft of the second clutch end is one half of the length of the transmission control cylinder, and the manual clutch is used to achieve the effect that any end can move alone.

[0015] Optionally, the tail frame comprises two support beams located on both sides of the roller, one end of the support beam is fixedly connected with the main frame of the adhesive tape machine, the other end is connected through the connecting beam and is welded with a stand column on the lower side; the support beam is composed of two oppositely arranged C-shaped steels; the lead screw is installed in the cavity composed of the two C-shaped steels, one end of the lead screw is connected with the reversing gear, the other end is connected with a support, and the support is fixedly connected with the support beam. The lead screw is located in the support beam to reduce pollution, and the support beam is used to protect the moving parts.

[0016] Optionally, the top surface and the bottom surface of the moving block are symmetrically provided with insertion grooves; the sliding seat is composed of a U-shaped upper shell and a bottom plate, the inner walls of the U-shaped upper shell and the bottom plate are symmetrically provided with insertion blocks, the insertion blocks are connected with the insertion grooves, and the U-shaped upper shell and the bottom plate are fixedly connected through bolts; the assembly is convenient and stable.

[0017] Optionally, the reversing gear comprises a worm gear and a worm which are engaged with each other, the worm is fixedly connected with the end portion of the driving rod, and the worm gear is fixedly connected with the end portion of the lead screw.

[0018] Optionally, the outer end of the worm is further connected with a manual shaft, and the manual shaft is connected with a hand wheel; so that the sliding seat can be manually fine-tuned. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 is the overall structure schematic view of the utility model;

[0020] Figure 2 is the three-dimensional view of the lead screw mounting structure of the utility model;

[0021] Figure 3 is the front view of the lead screw mounting structure of the utility model;

[0022] Figure 4 is the sliding seat structure schematic diagram of the utility model;

[0023] Figure 5 is the manual clutch structure diagram of the utility model;

[0024] Figure 6 is the reversing gear transmission schematic diagram of the utility model.

[0025] In the drawing: 1, tail frame;101, support beam;102, link beam;103, stand;2, roller;3, conveying belt;4, bearing seat;5, sliding seat;501, U-shaped upper shell;502, bottom plate;503, plug;6, adhesive tape machine main frame;7, drive motor;8, reversing transmission;9, manual clutch;901, baffle;902, connecting shaft;903, conveying tooth;904, transmission control cylinder;905, hand lever;906, control tooth;10, drive rod;11, reversing gear;12, hand wheel;13, lead screw;14, support;15, moving block;151, slot;16, shaft seat;17, manual shaft. DETAILED DESCRIPTION

[0026] The utility model is further described below in combination with examples, and the purpose is only to better understand the contents of the utility model, therefore, the examples do not limit the protection scope of the utility model.

[0027] Referring to Figures 1 to 4 The utility model provides a kind of adhesive tape machine conveying belt double-side tension quick difference adjusting device, including tail frame 1, tail frame 1 is provided with roller 2, roller 2 is installed conveying belt 3, the both ends of the rotating shaft of roller 2 are installed in bearing seat 4, bearing seat 4 is fixedly installed on sliding seat 5, the midpoint of link beam 102 of tail frame 1 is fixedly installed with drive motor 7, drive motor 7 lower end is installed with reversing transmission 8, the left side output shaft and right side output shaft of reversing transmission 8 are connected with drive rod 10 respectively by manual clutch 9, drive rod 10 is connected with lead screw 13 by reversing gear 11, lead screw 13 is parallel to conveying belt 3 and is located two sliding seat 5 downside, and moving block 15 is screw-mounted on lead screw 13;Sliding seat 5 is fixedly connected with moving block 15.

[0028] drive motor 7 is rotated simultaneously by reversing transmission 8, and then the both ends of roller are controlled to move simultaneously, and the transmission of any end is removed by manual clutch 9, so that two sliding seat 5 can be moved and adjusted individually.

[0029] Optionally, the bevel gear pair can be composed of a main gear and a driven gear, the driven gear is fixedly connected to the shaft rod, the shaft rod extends out of the shell at both ends to form the left and right output shafts, so that the two side driving rods 10 rotate in two directions, and the two side lead screws 13 use normal thread lead screws.

[0030] The bevel gear pair can also be a structure composed of three bevel gears, wherein the main gear shaft end is fixedly connected to the driving motor 7, the main gear is engaged with two driven gears at the same time, and the output shafts of the two driven gears extend to the outside of the shell of the reversing gear box 8 to form the left and right output shafts. In order to ensure the stability of the shaft end, the shaft seat 16 is arranged at the outer end of the left and right output shafts, and the shaft seat 16 is fixedly connected to the connecting beam 102. In this example, the output shafts are reduced in speed by reasonably arranging the tooth number difference between the main gear and the driven gears, one end of the output shaft rotates in the positive direction, the other end of the output shaft rotates in the reverse direction, one of the two side lead screws 13 is a normal thread, and the other end is a reverse thread, so that the two side sliding seats 5 move in the same direction.

[0031] The manual clutch 9 is similar to the principle and structure of the existing clutch, specifically, the manual clutch 9 includes a first clutch end, a second clutch end and a transmission control cylinder 904, the first clutch end and the second clutch end are both composed of a baffle 901 and a connecting shaft 902, the connecting shaft 902 is fixedly connected with a transmission tooth 903 on the outer wall, the transmission control cylinder 904 is fixedly connected with a hand lever 905 on the outer wall, the transmission control cylinder 904 is provided with a control tooth 906 on the inner wall, the control tooth 906 is engaged with the transmission tooth 903, the baffle 901 of the first clutch end is fixedly connected to the end of the driving rod 10, the baffle 901 of the second clutch end is fixedly connected to the end of the output shaft of the reversing gear box 8, the transmission control cylinder 904 is equal in length to the first clutch end connecting shaft 902, and the second clutch end connecting shaft 902 is half the length of the transmission control cylinder 904.

[0032] The output shaft of the reversing gear box 8 is stabilized by the shaft seat 16, the two connecting shafts 902 are oppositely arranged with a small gap, when the side driving rod 10 does not need to be transmitted, the transmission control cylinder 904 is completely sleeved on the first clutch end, when transmission is needed, the transmission control cylinder 904 is moved to the output shaft side through the hand lever 905, half the length of the transmission control cylinder 904 is engaged with the second clutch end, so as to achieve the effect of transmitting the rotation of the output shaft to the driving rod 10.

[0033] As an option, the reversing gear 11 includes a worm gear and a worm, the worm is fixedly connected to the end of the driving rod 10, and the worm gear is fixedly connected to the end of the lead screw 13. Further, the outer end of the worm is further connected with a manual shaft 17, and the manual shaft 17 is connected with the hand wheel 12. The utility model adopts the worm gear structure to drive the direction conversion, which has a large transmission ratio compared with the commonly used bevel gear and can be self-locking.

[0034] Alternatively, the tail frame 1 comprises two support beams 101 located on both sides of the roller 2, one end of the support beam 101 is fixedly connected with the main frame 6 of the rubber belt conveyor, the other end is connected through the connecting beam 102 and the lower side is welded with the stand column 103; the support beam 101 is combined by oppositely arranging two C-shaped steels; the lead screw 13 is installed in the cavity combined by the two C-shaped steels, one end of the lead screw 13 is connected with the reverser 11, the other end is connected with the support 14, and the support 14 is fixedly connected in the support beam 101.

[0035] The support beam 101 combined by the two C-shaped steels has a space inside for conveniently installing the lead screw 13, the two ends of the two C-shaped steels are welded and fixed with the main frame of the rubber belt conveyor and the connecting beam 102 to meet the required strength, and the upper and lower gaps are formed.

[0036] Alternatively, the top surface and the bottom surface of the moving block 15 are symmetrically provided with the insertion slot 151; the sliding seat 5 is composed of a U-shaped upper shell 501 and a bottom plate 502, the inner walls of the U-shaped upper shell 501 and the bottom plate 502 are symmetrically provided with the insertion block 503 connected with the insertion slot 151, and the U-shaped upper shell 501 and the bottom plate 502 are bolted.

[0037] The U-shaped upper shell 501 and the bottom plate 502 can be sleeved outside the support beam 101, so that the support beam 101 is used as a guide rod to ensure stable linear movement; the insertion block 503 passes through the gap formed by the two C-shaped steels and is clamped and fixed with the moving block 15 or is only inserted to achieve the effect of inheriting the movement ability of the moving block 15; the moving block 15 is arranged inside the support beam 101, and the detachable connection with the sliding seat 5 makes the structure convenient to assemble.

[0038] The beneficial effects of the utility model are as follows: 1) motor driving is adopted, which saves manpower and accelerates the adjustment speed; 2) one motor simultaneously drives the movement of two sliding seats through the reversing gear, and the manual clutch can better coordinate the movement distance and speed of the two sides.

[0039] The speed ratio of the reversing gear 8 is designed as 1:3, the rotating speed of the driving motor 7 is about 1500 revolutions per minute, 300÷6×8×3÷1500×60=48 seconds, through the selection of basic parameter calculation, 300mm stroke only needs one person to control the motor drive 7, and it takes about 48 seconds to complete. Moreover, the manual clutch 9 is installed on the output shaft at both ends of the reversing gear 8, allowing the two driving rods 10 to rotate independently, when unilateral fine adjustment is needed, the unilateral manual clutch 9 can be separated to the separation position, and the unilateral hand wheel 12 is rotated to realize unilateral tension adjustment.

[0040] The above only describes the preferred and feasible embodiment of the utility model, and does not limit the scope of the utility model, and any equivalent changes made by applying the contents of the utility model specification and drawings are included in the scope of the utility model.

Claims

1. A kind of belt conveyor belt double-side tension quick-difference adjusting device, including tail frame (1), tail frame (1) is provided with roller (2), roller (2) is installed conveyor belt (3), the both ends of the rotating shaft of roller (2) are installed in bearing seat (4), bearing seat (4) is fixedly installed on sliding seat (5), it is characterized by: The midpoint of the connecting beam (102) is fixedly installed with a driving motor (7), the lower end of the driving motor (7) is installed with a reversing gear (8), the left and right output shafts of the reversing gear (8) are respectively connected with driving rods (10) through manual clutches (9), the other ends of the driving rods (10) are connected with a lead screw (13) through a reversing device (11), the lead screw (13) is arranged in parallel to the conveying belt (3) and is located at the lower side of the two sliding seats (5), and the lead screw (13) is threadedly installed with a moving block (15); the sliding seat (5) is fixedly connected with the moving block (15).

2. The device according to claim 1, characterized in that: The reversing gear (8) comprises a bevel gear pair, wherein the main gear shaft end is fixedly connected with the main shaft of the driving motor (7), the main gear is engaged with a driven gear, and the output shaft of the driven gear extends to the outside of the casing of the reversing gear (8); the main gear to the driven gear is a speed reduction transmission.

3. The device of claim 1, wherein: The manual clutch (9) comprises a first clutch end, a second clutch end and a transmission control cylinder (904), the first clutch end and the second clutch end are both composed of a baffle (901) and a connecting shaft (902), the outer wall of the connecting shaft (902) is fixedly connected with a transmission tooth (903), the outer wall of the transmission control cylinder (904) is fixedly connected with a hand lever (905), the inner wall of the transmission control cylinder (904) is provided with a control tooth (906), the control tooth (906) is engaged with the transmission tooth (903), the baffle (901) of the first clutch end is fixedly connected with the end of the driving rod (10), the baffle (901) of the second clutch end is fixedly connected with the end of the output shaft of the reversing gear (8), the transmission control cylinder (904) is connected with the first clutch end connecting shaft (902) with equal length, and the second clutch end connecting shaft (902) is half the length of the transmission control cylinder (904).

4. The double-sided belt tensioning quick differential adjustment device of claim 1, wherein: The machine tail frame (1) comprises two support beams (101) located at the two sides of the roller (2), one end of the support beam (101) is fixedly connected with the rubber belt machine main frame (6), the other end is connected through the connecting beam (102) and is welded with a stand column (103) at the lower side; the support beam (101) is combined by oppositely arranging two C-shaped steels; the lead screw (13) is installed in the cavity formed by the two C-shaped steels, one end of the lead screw (13) is connected with the reversing device (11), the other end is connected with a support (14), and the support (14) is fixedly connected in the support beam (101).

5. The double-sided belt tensioning quick differential adjustment device of claim 1, wherein: The top surface and the bottom surface of the moving block (15) are symmetrically provided with a slot (151); the sliding seat (5) is composed of a U-shaped upper shell (501) and a bottom plate (502), the inner walls of the U-shaped upper shell (501) and the bottom plate (502) are symmetrically provided with an insertion block (503), the insertion block (503) is connected with the slot (151), and the U-shaped upper shell (501) and the bottom plate (502) are fixedly connected through bolts.

6. The double-sided belt tensioning quick differential adjustment device of claim 1, wherein: The reversing device (11) comprises a worm gear and a worm, the worm is fixedly connected with the end of the driving rod (10), and the worm gear is fixedly connected with the end of the lead screw (13).

7. The double-sided belt tensioning quick differential adjustment device of claim 6, wherein: The outer end of the worm is further connected with a manual shaft (17), and the manual shaft (17) is connected with a hand wheel (12).

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