Belt conveyor and tensioning mechanism thereof

Abstract

The utility model discloses a belt conveyor and a tensioning mechanism thereof, the belt conveyor comprises a driving section, machine head sections arranged at two ends of the driving section and a belt sleeved on the machine head sections and the driving section, and the driving section is provided with a driving section tensioning mechanism. The driving section tensioning mechanism comprises adjusting devices symmetrically arranged on the two sides of the driving section rack, a tensioning roller and a chain, each adjusting device comprises a sliding rail arranged on the driving section rack, a sliding frame arranged on the sliding rail in a sliding mode and a tensioning lead screw driving the sliding frame to move on the sliding rail, a chain wheel is arranged at one end of the tensioning lead screw, and the chain is meshed with the chain wheel; the two ends of the tensioning roller penetrate through the driving section rack and are rotationally connected with the sliding frame. The tensioning lead screw on the single side rotates, the sliding frame moves front and back along with rotation of the tensioning lead screw along the sliding rail, and meanwhile the tensioning roller is driven to move front and back. The chain drives the tensioning lead screws on the two sides to rotate synchronously, and then tensioning linkage on the two sides is achieved. The stress balance of the two sides of the tensioning roller during translation is ensured, and the problem that manual adjustment is not synchronous is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to conveying equipment technical field especially relates to a belt conveyor and its tensioning mechanism. BACKGROUND

[0002] The airport luggage system usually adopts the belt conveyor to convey, and the existing belt conveyor has the following problems:

[0003] 1. The driving tensioning mechanism usually adopts the unilateral adjustment mode, and the asynchronous adjustment can easily cause the belt deviation or local wear problem.

[0004] 2. The length of the belt conveyor is fixed, and the length cannot be adjusted according to the requirement. When the user's use site changes, the conveying length changes, and the belt conveyor needs to be purchased again according to the required conveying length, so that the cost is greatly increased.

[0005] 3. When the bearing, roller and other parts are damaged and need to be replaced, the fastening force between the parts is restricted, many parts need to be removed, and the belt conveyor is difficult to disassemble and assemble, the maintenance and assembly time is long, and many inconveniences are caused. INVENTION CONTENTS

[0006] The utility model aims at the deficiency of the prior art, and provides a belt conveyor.

[0007] In order to solve the above problems, the technical scheme adopted by the utility model is:

[0008] A belt conveyor, comprising a driving section, a head section arranged at both ends of the driving section and a belt sleeved on the head section and the driving section, a driving section tensioning mechanism is arranged on the driving section, the driving section tensioning mechanism comprises adjusting devices symmetrically arranged on both sides of the driving section rack, a tensioning roller and a chain, the adjusting device comprises a sliding rail arranged on the driving section rack, a sliding frame slidingly arranged on the sliding rail and a tensioning lead screw driving the sliding frame to move on the sliding rail, one end of the tensioning lead screw is provided with a sprocket, the chain is engaged with the sprocket, and both ends of the tensioning roller are rotationally connected with the driving section rack and the sliding frame.

[0009] Further technical scheme is that at least one intermediate section is further included, and the intermediate section is arranged between the driving section and the head section.

[0010] Further technical scheme is that the head section comprises a head section rack, one end of the head section rack away from the driving section is provided with a head tensioning mechanism, one end of the head section rack close to the driving section is provided with a head redirection mechanism, the head tensioning mechanism comprises head tensioning frames symmetrically arranged on both sides of the head section rack and a head roller arranged between the two head tensioning frames, and the head redirection mechanism comprises head redirection frames symmetrically arranged on both sides of the head section rack and a redirection roller arranged between the two head redirection frames.

[0011] Further, the plurality of long holes are arranged along the length direction of the belt conveyor on the head section frame, the head tensioning frame and the head redirection frame are installed on the head section frame through the cooperation of the horse bolts and the long holes, and the first jackscrew is arranged at the position corresponding to the head tensioning frame on the head section frame, and the second jackscrew is arranged at the position corresponding to the head redirection frame on the head section frame.

[0012] Further, the power mechanism is arranged on the driving section, the power mechanism comprises a speed reducer motor, driving bearings symmetrically arranged on both sides of the driving section frame, and a driving roller arranged between the two driving bearings, the speed reducer motor is installed on the driving section frame through a motor fastening support, and the speed reducer motor is in transmission connection with the driving roller.

[0013] Further, the driving section belt redirection mechanism is arranged on the driving section, the driving section belt redirection mechanism comprises driving redirection frames one symmetrically arranged on both sides of the driving section frame, redirection rollers one arranged between the two driving redirection frames one, driving redirection frames two symmetrically arranged on both sides of the driving section frame, and redirection rollers two arranged between the two driving redirection frames two.

[0014] Further, the plurality of long holes are arranged along the length direction of the belt conveyor on the driving section frame, the driving redirection frames one and the driving redirection frames two are installed on the driving section frame through the cooperation of the horse bolts and the long holes, the third jackscrew is arranged at the position corresponding to the driving redirection frames one on the driving section frame, and the fourth jackscrew is arranged at the position corresponding to the driving redirection frames two on the driving section frame.

[0015] Further, the supporting legs are arranged below the driving section and the intermediate section.

[0016] Further, the supporting legs comprise supporting frames, shock-absorbing blocks arranged on the top of the supporting frames, and adjustable foot cups arranged on the bottom of the supporting frames.

[0017] The belt conveyor tensioning mechanism is also disclosed, which comprises adjusting devices symmetrically arranged on both sides of the belt conveyor frame, a tensioning roller, and a chain, the adjusting device comprises slide rails arranged on the frame, a sliding frame slidingly arranged on the slide rails, a tensioning bearing arranged on the sliding frame, a tensioning lead screw driving the sliding frame to move on the slide rails, the tensioning lead screw is provided with a sprocket at one end, the chain is in meshing connection with the sprocket, and the tensioning roller is in matched connection with the tensioning bearing through the frame at both ends.

[0018] The beneficial effects generated by the above technical solutions are as follows:

[0019] The single side tensioning wire rod rotates, the sliding frame moves forward and backward along the slide rail with the tensioning wire rod rotating, and drives the tensioning roller to move forward and backward. The chain drives the two side tensioning wire rods to rotate synchronously, that is, to realize the two side tensioning linkage. It ensures that the two sides are balanced when the tensioning roller translates, and solves the problem of manual adjustment out of synchronization.

[0020] The length of the whole conveyor is determined by the number of the middle sections. By changing the number of the middle sections, the length of the conveyor can be adjusted from 3m to 15m, which can meet the use requirements of different conveying lengths.

[0021] The shaft guard is fixed separately. When the bearing, roller and other parts are damaged and replaced, the head roller can be quickly disassembled without removing the shaft guard, realizing quick replacement of parts and saving operation time. The bearing is installed on the rack through an independent mounting bracket, which facilitates the disassembly of the bearing or the disassembly of the mounting bracket together, improving the maintenance efficiency; for example, the head bearing is arranged on the head tensioning frame, which facilitates the disassembly of the bearing or the disassembly of the head tensioning frame together. The change-over bearing three is arranged on the head change-over frame, which facilitates the disassembly of the bearing or the disassembly of the head change-over frame together. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is a structural schematic diagram of a belt conveyor;

[0023] Figure 2 is an exploded schematic diagram of a belt conveyor;

[0024] Figure 3 is an exploded view of the head section;

[0025] Figure 4 is an exploded view of the drive section;

[0026] Figure 5 is a structural schematic diagram of the middle section;

[0027] Figure 6 is a structural schematic diagram of the support leg.

[0028] In the figure: 1, head section; 101, head section frame; 102, head reversing frame; 103, reversing bearing three; 104, head roller; 105, reversing roller three; 106, shaft guard; 107, head tensioning frame; 108, head bearing; 109, first top wire; 110, second top wire; 2, drive section; 201, drive section frame; 202, tensioning box; 203, chain wheel; 204, tensioning bearing; 205, tensioning roller; 206, reversing roller one; 207, reversing roller two; 208, drive roller; 209, drive bearing; 210, speed reduction motor; 211, motor fastening support; 212, drive reversing frame one; 213, third top wire; 214, reversing bearing one; 215, fourth top wire; 216, reversing bearing two; 217, drive reversing frame two; 218, oil receiving disc; 219, chain; 220, tensioning frame; 221, slide rail; 222, sliding frame; 223, tensioning screw; 3, middle section; 301, middle frame; 4, belt; 5, leg; 501, shock absorbing block; 502, support frame; 503, adjustable foot cup. DETAILED DESCRIPTION

[0029] The embodiments of the present application will be further described below in conjunction with the drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0030] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0031] As Figures 1-6As shown, a belt conveyor is disclosed, which adopts a multi-section modular design, including a driving section 2, a head section 1 arranged at both ends of the driving section 2, and a belt 4 sleeved on the head section 1 and the driving section 2. The driving section 2 is provided with a driving section tensioning mechanism, which is a tensioning mechanism for the maximum distance of the belt conveyor, used for adjusting the tension of the belt 4 and the driving friction power. The driving section tensioning mechanism includes adjusting devices symmetrically arranged on both sides of a driving section rack 201, a tensioning roller 205, and a chain 219. The adjusting device includes a sliding rail 221 arranged on the driving section rack 201, a sliding frame 222 slidingly arranged on the sliding rail 221, a tensioning bearing 204 arranged on the sliding frame 222, and a tensioning screw 223 driving the sliding frame 222 to move on the sliding rail 221. Specifically, the sliding rail 221 is provided with a tensioning frame 220 at both ends, and the tensioning screw 223 is installed between the two tensioning frames 220. A screw nut is installed on the sliding frame 222, and the screw nut is threadedly matched with the tensioning screw 223. One end of the tensioning screw 223 is provided with a sprocket 203, and the other end is welded with a nut for manual rotation operation. The chain 219 is engaged with the sprocket 203. The tensioning roller 205 is penetrated through the driving section rack 201 at both ends and is connected with the tensioning bearing 204. When the nut of the tensioning screw 223 is manually rotated, the unilateral tensioning screw 223 rotates, and the sliding frame 222 moves back and forth along the sliding rail 221 with the rotation of the tensioning screw 223, and simultaneously drives the tensioning roller 205 to move back and forth. The chain 219 drives the two tensioning screws 223 to rotate synchronously, that is, to realize the tensioning linkage on both sides. The tensioning roller 205 translates forward or backward, thereby adjusting the tightness of the belt. Preferably, the driving section tensioning mechanism further includes a tensioning box 202, which is arranged on the outer side of the sliding frame 222 and the tensioning screw 223, thereby playing a protective role.

[0032] Further, the belt conveyor further includes at least one intermediate section 3, which is arranged between the driving section 2 and the head section 1. The intermediate section 3 includes an intermediate rack 301, as shown. Figure 5 The functional sections are connected through fasteners, and in this embodiment, bolt connection is adopted. The length of the whole conveyor is determined by the number of intermediate sections. By changing the number of intermediate sections, the length of the conveyor can be adjusted from 3m to 15m.

[0033] Among them, the intermediate section 3 refers to an independent functional module unit, which can be realized by adopting a standardized size frame structure, and each intermediate section 3 contains a complete support structure. The intermediate rack 301 refers to the main support frame of the intermediate section, which can be made of cold-rolled carbon steel plate. The fastener connection refers to the mechanical fixing mode between the functional sections, which can be realized by cooperating the bolt with the pre-installed mounting hole.

[0034] As shown in Figure 3As shown, the head section 1 comprises a head section frame 101, the head section frame 101 is provided with a head tensioning mechanism at one end away from the driving section 2, and is provided with a head redirection mechanism at one end close to the driving section 2, the head tensioning mechanism comprises head tensioning frames 107 symmetrically arranged on both sides of the head section frame 101 and a head roller 104 arranged between the two head tensioning frames 107, specifically, a head bearing 108 is installed on the head tensioning frame 107, and the head roller 104 is installed on the head tensioning frame 107 through the head bearing 108, the head redirection mechanism comprises head redirection frames 102 symmetrically arranged on both sides of the head section frame 101 and a redirection roller three 105 arranged between the two head redirection frames 102, specifically, a redirection bearing three 103 is installed on the head redirection frame 102, and the redirection roller three 105 is installed on the head redirection frame 102 through the redirection bearing three 103. The inside of the head section frame 101 is provided with a shaft guard 106 corresponding to the end of the head roller 104. The shaft guard 106 is fixed separately, when the bearing, roller and other parts are damaged and replaced, the head roller 104 can be quickly disassembled without disassembling the shaft guard 106, realizing quick replacement of parts and saving operation time. The head bearing 108 is arranged on the head tensioning frame 107, which facilitates the disassembly of the bearing or the disassembly of the head tensioning frame 107 together, improving the maintenance efficiency. The redirection bearing three 103 is arranged on the head redirection frame 102, which facilitates the disassembly of the bearing or the disassembly of the head redirection frame 102 together, improving the maintenance efficiency.

[0035] A plurality of long holes are formed on the head section frame 101 along the length direction of the belt conveyor, and the head tensioning frame 107 and the head redirection frame 102 are respectively installed on the head section frame 101 through the cooperation of the horse bolts and the long holes. The first top wire 109 is arranged on the head section frame 101 corresponding to the head tensioning frame 107, and the second top wire 110 is arranged on the head section frame 101 corresponding to the head redirection frame 102. The first top wire is used to push the head tensioning mechanism, and the second top wire is used to push the head redirection mechanism. By adjusting the top wire to drive the mechanism to move forward and backward, the belt tensioning and deviation adjustment are realized.

[0036] As shown in Figure 4 The driving section 2 is also provided with a power mechanism, the power mechanism comprises a speed reducer motor 210, driving bearings 209 symmetrically arranged on both sides of a driving section frame 201 and a driving roller 208 arranged between the two driving bearings 209, the speed reducer motor 210 is installed on the driving section frame 201 through a motor fastening support 211 and forms a transmission connection with the driving roller 208. Among them, an oil receiving disc 218 is also arranged below the speed reducer motor 210.

[0037] The driving section 2 is also provided with a driving section belt turning mechanism for guiding the running direction of the belt, which comprises driving turning frames one 212 symmetrically arranged on both sides of the driving section frame 201, a turning roller one 206 arranged between the two driving turning frames one 212, driving turning frames two 217 symmetrically arranged on both sides of the driving section frame 201, and a turning roller two 207 arranged between the two driving turning frames two 217. Specifically, the driving turning frames one 212 are provided with turning bearings one 214, the turning roller one 206 is installed on the driving turning frames one 212 through the turning bearings one 214, the driving turning frames two 217 are provided with turning bearings two 216, and the turning roller two 207 is installed on the driving turning frames two 217 through the turning bearings two 216.

[0038] The belt 4 is wound around the driving roller 208, the tensioning roller 205, the turning roller two 207, the turning roller one 206, the turning roller three 105, and the head roller 104.

[0039] The driving section frame 201 is provided with a plurality of long holes along the length direction of the belt conveyor, the driving turning frames one 212 and the driving turning frames two 217 are installed on the driving section frame 201 through the cooperation of the horse bolts and the long holes, and the driving section frame 201 is provided with a third top wire 213 corresponding to the driving turning frames one 212 and a fourth top wire 215 corresponding to the driving turning frames two 217.

[0040] Specifically, the driving turning frames one 212 and the driving turning frames two 217 are preliminarily positioned through the cooperation of the horse bolts and the long holes, and the length direction of the long holes is consistent with the running direction of the belt conveyor, so that the two turning frames can be translated forward and backward along the belt path during installation. When it is necessary to adjust the position of the turning roller, the horse bolts are loosened and then slid along the long holes, so that the turning frames are moved to the target position as a whole, and then the bolts are fastened again to complete the coarse adjustment. The third top wire and the fourth top wire are respectively located on the side surfaces of the driving turning frames one and the driving turning frames two. After the coarse adjustment is completed, the end of the top wire is abutted against the side wall of the turning frame by rotating the top wire, and the turning frame is precisely positioned by using the small displacement generated by the thread advancement.

[0041] The driving section 2 and the intermediate section 3 are also provided with supporting legs 5 below.

[0042] The support leg 5 comprises a support frame 502, a shock-absorbing block 501 arranged on the top of the support frame 502, and an adjustable foot cup 503 arranged on the bottom of the support frame 502. The support leg 5 is connected to the frame of the driving section 2 and the intermediate section 3 by fasteners, and serves as a support. The support frame 502 is provided with an adjusting nut, and the height of the conveyor can be finely adjusted by adjusting the position of the adjusting nut on the screw rod of the adjustable foot cup 503. The support frame 502 is made of a cold-bent plate and has a C-shaped structure with a uniform cross-section. The frame of the driving section 2, the head section 1 and the intermediate section 3 of the belt conveyor are made of 3.0 mm cold-rolled carbon steel plates.

[0043] The shock-absorbing block 501 is an elastic buffer component arranged on the top of the support frame 502, which is used to absorb vibration energy during operation of the equipment, reduce noise, and reduce rigid impact between the frame and the support leg. The adjustable foot cup is a screw rod structure with adjustable height installed on the bottom of the support frame. The height of the conveyor can be finely adjusted by rotating the adjusting nut, and the support surface difference caused by uneven ground or installation error can be adapted.

[0044] The belt conveyor tensioning mechanism comprises adjusting devices symmetrically arranged on both sides of the frame of the belt conveyor, a tensioning roller 205, and a chain 219. The adjusting device comprises a slide rail 221 arranged on the frame, a sliding frame 222 slidingly arranged on the slide rail 221, a tensioning bearing 204 arranged on the sliding frame 222, a tensioning screw 223 for driving the sliding frame 222 to move on the slide rail 221, a sprocket 203 arranged at one end of the tensioning screw 223, and a nut welded at the other end of the tensioning screw 223 for manual rotation. The chain 219 is engaged with the sprocket 203, and the tensioning roller 205 is connected to the tensioning bearing 204 through the frame at both ends.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not limited thereto. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or make equivalent substitutions for part of the technical features. Such modifications or substitutions do not cause the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A belt conveyor comprising a drive section (2), head sections (1) arranged at both ends of the drive section (2) and a belt (4) arranged on the head sections (1) and the drive section (2), characterized in that: The driving section (2) is provided with a driving section tensioning mechanism, the driving section tensioning mechanism comprises adjusting devices symmetrically arranged on both sides of the driving section rack (201), a tensioning roller (205) and a chain (219), the adjusting device comprises a sliding rail (221) arranged on the driving section rack (201), a sliding frame (222) slidingly arranged on the sliding rail (221), a tensioning lead screw (223) driving the sliding frame (222) to move on the sliding rail (221), one end of the tensioning lead screw (223) is provided with a sprocket (203), the chain (219) is engaged with the sprocket (203), and both ends of the tensioning roller (205) penetrate the driving section rack (201) and is rotationally connected with the sliding frame (222).

2. A belt conveyor according to claim 1, characterized in that: Further comprising at least one intermediate section (3), the intermediate section (3) is arranged between the driving section (2) and the head section (1).

3. A belt conveyor according to claim 2, characterized in that: The head section (1) comprises a head section rack (101), one end of the head section rack (101) away from the driving section (2) is provided with a head tensioning mechanism, one end of the head section rack (101) close to the driving section (2) is provided with a head redirection mechanism, the head tensioning mechanism comprises head tensioning frames (107) symmetrically arranged on both sides of the head section rack (101) and a head roller (104) arranged between the two head tensioning frames (107), and the head redirection mechanism comprises head redirection frames (102) symmetrically arranged on both sides of the head section rack (101) and a redirection roller three (105) arranged between the two head redirection frames (102).

4. A belt conveyor according to claim 3, characterised in that: A plurality of long holes are formed on the head section rack (101) along the length direction of the belt conveyor, the head tensioning frame (107) and the head redirection frame (102) are respectively installed on the head section rack (101) through the cooperation of the horse bolts and the long holes, and the first jackscrews (109) are arranged at positions corresponding to the head tensioning frame (107) on the head section rack (101), and the second jackscrews (110) are arranged at positions corresponding to the head redirection frame (102) on the head section rack (101).

5. A belt conveyor according to claim 2, characterized in that: The driving section (2) is further provided with a power mechanism, the power mechanism comprises a speed reducer motor (210), driving bearings (209) symmetrically arranged on both sides of the driving section rack (201) and a driving roller (208) arranged between the two driving bearings (209), the speed reducer motor (210) is installed on the driving section rack (201) through a motor fastening support (211), and the speed reducer motor (210) is in transmission connection with the driving roller (208).

6. A belt conveyor according to claim 2, characterized in that: The driving section (2) is further provided with a driving section belt redirection mechanism, the driving section belt redirection mechanism comprises driving redirection frames one (212) symmetrically arranged on both sides of the driving section rack (201), a redirection roller one (206) arranged between the two driving redirection frames one (212), driving redirection frames two (217) symmetrically arranged on both sides of the driving section rack (201) and a redirection roller two (207) arranged between the two driving redirection frames two (217).

7. A belt conveyor according to claim 6, characterised in that: The driving section frame (201) is provided with a plurality of long holes along the length direction of the belt conveyor, the driving redirection frame one (212) and the driving redirection frame two (217) are respectively installed on the driving section frame (201) through the cooperation of the horse bolts and the long holes, the driving section frame (201) is provided with the third top wire (213) corresponding to the driving redirection frame one (212) and the fourth top wire (215) corresponding to the driving redirection frame two (217).

8. A belt conveyor according to claim 2, characterized in that: The driving section (2) and the middle section (3) are further provided with the supporting legs (5) below.

9. A belt conveyor according to claim 8, characterized in that: The supporting legs (5) comprise supporting frames (502), damping blocks (501) arranged on the top of the supporting frames (502) and adjustable foot cups (503) arranged on the bottom of the supporting frames (502).

10. A belt conveyor tensioning mechanism characterized by: The adjusting device, the tensioning roller (205) and the chain (219) are symmetrically arranged on both sides of the belt conveyor frame, the adjusting device comprises slide rails (221) arranged on the frame, slide frames (222) slidably arranged on the slide rails (221), tensioning bearings (204) arranged on the slide frames (222), tensioning lead screws (223) for driving the slide frames (222) to move on the slide rails (221), one end of the tensioning lead screws (223) is provided with a chain wheel (203), the chain (219) is engaged with the chain wheel (203), and the two ends of the tensioning roller (205) penetrate the frame and are connected with the tensioning bearings (204) in a matched mode.

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