CN219097809U - Conveying chain tensioning device - Google Patents

Abstract

The utility model provides a conveying chain tensioning device which comprises a bottom plate and a conveying chain, wherein a supporting plate is vertically fixed on the top surface of the bottom plate, two groups of limiting mechanisms are arranged on the side wall of the supporting plate in parallel, lifting plates are inserted into the two groups of limiting mechanisms in a sliding mode, the bottom surfaces of two ends of the lifting plates are connected with fixing plates, the bottom surfaces of the fixing plates are connected with pneumatic rods, the pneumatic rods are fixed on the top surface of the bottom plate, two first sliding interfaces are formed in the lifting plates, tensioning assemblies are inserted into the two first sliding interfaces in a sliding mode, and the tensioning assemblies are used for pushing and tightening the conveying chain. According to the utility model, the lifting plate is pushed upwards by the pneumatic rod to lift, so that the two groups of tensioning assemblies lift at the same time to push the conveying chain to tighten, a larger pushing range can be provided, the lifting amplitude required for tightening the conveying chain is reduced, and the tightening efficiency of the conveying chain is higher.

Description

Conveying chain tensioning device

Technical Field

The utility model relates to the technical field of transmission adjustment, in particular to a conveying chain tensioning device.

Background

In industrial production, motion transmission is often required, and common transmission mechanisms are classified into chain transmission, belt transmission and gear transmission. In the belt conveying and chain transmission processes, the belt and the conveying chain can be stretched and deformed under the action of load for a long time. Because the gear and the conveying chain are in meshed transmission, if the chain is overlong, the overlong part can rotate along with the gear to lock the conveying chain, so that the motor is overloaded to give an alarm or burn out, the production efficiency of a production line is affected, the service life of equipment is affected, and a tensioning device is generally required to be arranged to tighten the conveying chain.

The existing tensioning device mainly installs a gear on adjustable support, makes the gear remove and bulldoze one side that the conveying chain is lax through adjusting the support for conveying chain tightens up, and this kind of tensioning device is when tightening up long distance conveying gear, because bulldozes the scope less, thus needs the great range to bulldoze and tightens up conveying chain, not only tightens up inefficiency, and the precision of adjusting is lower moreover.

In summary, there is a need for a conveyor chain tensioner that tightens efficiently and with high precision.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model provides a conveying chain tensioning device which solves the problems in the background art.

In order to achieve the above purpose, the utility model is realized by the following technical scheme:

the utility model provides a conveying chain overspeed device tensioner, includes bottom plate and conveying chain, bottom plate top surface vertical fixation has the backup pad, backup pad lateral wall parallel arrangement has two sets of stop mechanism, two sets of stop mechanism is inside to be pegged graft in a sliding way has the lifter plate, lifter plate both ends bottom surface all is connected with the fixed plate, the fixed plate bottom surface is connected with the pneumatic rod, the pneumatic rod is fixed in bottom plate top surface, two first sliding interface have been seted up to the lifter plate inside, two the inside all slip grafting of first sliding interface has tensioning assembly, tensioning assembly is used for bulldozing and tightens up conveying chain, tensioning assembly inside threaded connection has the screw rod, screw rod one end rotates to be connected in the lifter plate inside, and the other end runs through the lifter plate and is connected with adjustment carousel.

Further, tensioning assembly includes first baffle, slide shaft, fixed column, gear and second baffle, the slide shaft slides and pegs graft inside first slip interface, screw rod threaded connection is inside the slide shaft, slide shaft one end is fixed with first baffle, first baffle laminating in lifter plate lateral wall, the fixed column has been cup jointed in the rotation of slide shaft other end outer wall, the fixed column outer wall cup joints and is fixed with the gear, the terminal surface that the fixed column kept away from first baffle is fixed with the second baffle, the second baffle diameter is greater than the gear external diameter.

Further, the limiting mechanism comprises a limiting frame, the limiting frame is fixed on the side wall of the supporting plate, a second sliding interface is formed in the limiting frame, and the lifting plate is inserted into the second sliding interface in a sliding mode.

Further, stop gear still includes brush oil subassembly, catheter, oil tank and pressure boost subassembly, brush oil subassembly connects in the spacing lateral wall, brush oil subassembly is drum-type structure and is used for laminating in the conveying chain bottom surface of relaxation state, brush oil subassembly bottom through connection has the catheter, the catheter bottom is provided with the oil tank, the oil tank is fixed in the spacing lateral wall, run through the oil tank to the catheter bottom and laminate in the inside bottom surface of oil tank, the pressure boost subassembly sets up inside the spacing, pressure boost subassembly one end runs through spacing and the inside through connection of oil tank.

Further, the brush oil subassembly includes liquid guide cylinder, spacing ring and cylindric brush, liquid guide cylinder connects in spacing lateral wall, liquid guide tube top through connection is inside liquid guide cylinder, liquid guide cylinder outer wall rotates and has cup jointed the cylindric brush that can adsorb fluid, liquid guide cylinder outer wall cup joints and is fixed with the spacing ring, spacing ring joint is in cylindric brush inner wall, link up between liquid guide cylinder outer wall and the inside and offered a plurality of liquid outlet holes.

Further, the supercharging assembly comprises a push rod, a piston, a spring, a sleeve and an air duct, wherein the sleeve is inserted into the limiting frame, the top end of the sleeve is flush with the bottom surface of the second sliding interface, the push rod is inserted into the sleeve, the top end of the push rod extends out of the top end of the sleeve in a penetrating mode and is attached to the bottom surface of the lifting plate, the bottom end of the push rod is fixed with the piston, the piston is inserted into the sleeve in a sliding mode, the spring is connected between the bottom end of the piston and the bottom surface of the sleeve, the air duct is connected with the bottom end of the sleeve in a penetrating mode, and one end of the air duct penetrates through the limiting frame and is connected with the inner portion of the oil tank in a penetrating mode.

The utility model provides a conveying chain tensioning device. Compared with the prior art, the method has the following beneficial effects:

1. the lifting plate is pushed upwards by the pneumatic rod to lift, so that the two groups of tensioning assemblies lift at the same time to push the conveying chain to tighten, a larger pushing range can be provided, the lifting amplitude required for tightening the conveying chain is reduced, and the tightening efficiency of the conveying chain is higher;

2. after the two groups of tensioning assemblies are used for pushing the conveying chain to tighten for a period of time, if the conveying chain has smaller loosening condition, the adjusting turntable is only required to be rotated on the lifting plate, so that the screw rod rotates and drives the tensioning assemblies to slide in the first sliding interface, the pushing range is changed by adjusting the distance between the two groups of tensioning assemblies, the conveying chain can be tightened slightly, and the tensioning adjustment precision of the conveying chain is improved.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows a schematic view of a conveyor chain tensioner of the present utility model;

FIG. 2 shows a schematic view of the connection of the tensioning assembly to the lifter plate of the present utility model;

FIG. 3 is a cross-sectional view showing the internal connection structure of the spacing mechanism of the present utility model;

FIG. 4 shows a schematic view of the partial enlarged structure at A of the present utility model;

FIG. 5 shows a schematic diagram of the overall and conveyor chain connection of the present utility model;

the figure shows: 1. a bottom plate; 2. a support plate; 3. a pneumatic lever; 4. a fixing plate; 5. adjusting a turntable; 6. a lifting plate; 61. a first sliding interface; 7. a limiting mechanism; 71. a limiting frame; 711. a second sliding interface; 72. an oil brushing assembly; 721. a liquid guide cylinder; 7211. a liquid outlet hole; 722. a limiting ring; 723. a cylindrical brush; 73. a catheter; 74. an oil tank; 75. a pressurizing assembly; 751. a push rod; 752. a piston; 753. a spring; 754. a sleeve; 755. an air duct; 8. a screw; 9. a tensioning assembly; 91. a first baffle; 92. a slide shaft; 93. fixing the column; 94. a gear; 95. a second baffle; 9a, conveying chain.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions in the embodiments of the present utility model are clearly and completely described, and it is obvious that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

In order to solve the technical problems in the background art, a conveying chain tensioning device is provided as follows:

referring to fig. 1-5, the conveying chain tensioning device provided by the utility model comprises a bottom plate 1 and a conveying chain 9a, wherein a supporting plate 2 is vertically fixed on the top surface of the bottom plate 1, two groups of limiting mechanisms 7 are arranged on the side wall of the supporting plate 2 in parallel, lifting plates 6 are slidingly inserted in the two groups of limiting mechanisms 7, the bottom surfaces of two ends of the lifting plates 6 are both connected with a fixed plate 4, the bottom surface of the fixed plate 4 is connected with a pneumatic rod 3, the pneumatic rod 3 is fixed on the top surface of the bottom plate 1, two first sliding interfaces 61 are arranged in the lifting plates 6, tensioning assemblies 9 are slidingly inserted in the two first sliding interfaces 61, the tensioning assemblies 9 are used for pushing and tightening the conveying chain 9a, a screw 8 is connected in a threaded manner in the tensioning assemblies 9, one end of each screw 8 is rotationally connected in the lifting plate 6, and the other end of each screw 8 penetrates through the lifting plate 6 and is connected with an adjusting turntable 5;

the lifting plate 6 is pushed upwards by the pneumatic rod 3 to lift so that the two groups of tensioning assemblies 9 lift at the same time to push the conveying chain 9a to tighten, a larger pushing range can be provided, the lifting amplitude required for tightening the conveying chain 9a is reduced, and the tightening efficiency of the conveying chain 9a is higher;

after the two groups of tensioning assemblies 9 are utilized to push the conveying chain 9a to tighten for a period of time, if the conveying chain 9a has small looseness, the adjusting turntable 5 is only required to be rotated on the lifting plate 6, so that the screw rod 8 rotates and drives the tensioning assemblies 9 to slide in the first sliding interface 61, the pushing range is changed by adjusting the distance between the two groups of tensioning assemblies 9, the conveying chain 9a can be tightened in a small extent, and the tensioning adjustment precision of the conveying chain 9a is improved.

As an improvement of the above technical solution, the tensioning assembly 9 includes a first baffle 91, a sliding shaft 92, a fixed column 93, a gear 94 and a second baffle 95, the sliding shaft 92 is slidably inserted into the first sliding interface 61, the screw 8 is in threaded connection with the sliding shaft 92, one end of the sliding shaft 92 is fixed with the first baffle 91, the first baffle 91 is attached to the side wall of the lifting plate 6, the outer wall of the other end of the sliding shaft 92 is rotatably sleeved with the fixed column 93, the outer wall of the fixed column 93 is fixedly sleeved with the gear 94, the end surface of the fixed column 93 far away from the first baffle 91 is fixedly provided with the second baffle 95, and the diameter of the second baffle 95 is larger than the outer diameter of the gear 94;

when the sliding shaft 92 slides in the first sliding interface 61 through rotation of the screw rod 8, the gear 94 is driven to rotate on the sliding shaft 92 by the fixing column 93, so that the gear 94 can always keep meshed with the conveying chain 9a when moving, stable pushing and pressing of the conveying chain 9a by the gear 94 are facilitated, and tension adjustment stability of the conveying chain 9a is improved.

As an improvement of the above technical solution, the limiting mechanism 7 includes a limiting frame 71, the limiting frame 71 is fixed on the side wall of the supporting plate 2, a second sliding interface 711 is provided in the limiting frame 71, and the lifting plate 6 is slidably inserted into the second sliding interface 711;

when the lifting plate 6 is pushed and pulled by the pneumatic rod 3 to perform lifting action, the lifting plate 6 slides in the second sliding interface 711 of the limiting frame 71, so that the movement of the lifting plate 6 has guiding performance, and the stability of tensioning and adjusting the conveying chain 9a is further improved.

Example two

When the conveying chain 9a works for a long time and needs to be tightened and adjusted, the gear 94 is used for pushing the conveying chain 9a to be tightened, friction is easy to generate between the gear 94 and the conveying chain 9a, and therefore scratches are caused on the conveying chain 9a, and normal use of the conveying chain 9a is affected;

as shown in fig. 3 and 4, on the basis of the above embodiment, the present embodiment further gives the following:

the limiting mechanism 7 further comprises an oil brushing assembly 72, a liquid guide tube 73, an oil tank 74 and a pressurizing assembly 75, wherein the oil brushing assembly 72 is connected to the side wall of the limiting frame 71, the oil brushing assembly 72 is of a drum-type structure and is used for being attached to the bottom surface of a conveying chain 9a in a loose state, the liquid guide tube 73 is connected to the bottom of the oil brushing assembly 72 in a penetrating mode, the oil tank 74 is arranged at the bottom of the liquid guide tube 73, the oil tank 74 is fixed to the side wall of the limiting frame 71, the bottom end of the liquid guide tube 73 penetrates through the oil tank 74 and is attached to the bottom surface inside the oil tank 74, the pressurizing assembly 75 is arranged inside the limiting frame 71, and one end of the pressurizing assembly 75 penetrates through the limiting frame 71 and is connected to the inside of the oil tank 74 in a penetrating mode;

when the conveying chain 9a is in a loose state, the bottom surface of the conveying chain 9a is attached to the oil brushing assembly 72, then in the transmission process of the conveying chain 9a, the pressurizing assembly 75 is utilized to pressurize the inside of the oil tank 74, lubricating oil in the oil tank 74 is pressed into the oil brushing assembly 72 through the liquid guide tube 73, and then the oil brushing assembly 72 is attached to the bottom surface of the conveying chain 9a to roll and smear the lubricating oil, so that the operation is simple, and the flexibility of tightening and adjusting the conveying chain 9a is ensured.

As an improvement of the above technical solution, the oil brushing assembly 72 includes a liquid guiding cylinder 721, a limiting ring 722 and a cylindrical brush 723, the liquid guiding cylinder 721 is connected to a side wall of the limiting frame 71, a top end of the liquid guiding tube 73 is connected to an inside of the liquid guiding cylinder 721 in a penetrating manner, a cylindrical brush 723 capable of absorbing oil is rotatably sleeved on an outer wall of the liquid guiding cylinder 721, the limiting ring 722 is fixedly sleeved on an outer wall of the liquid guiding cylinder 721, the limiting ring 722 is clamped on an inner wall of the cylindrical brush 723, and a plurality of liquid outlet holes 7211 are formed between the outer wall and the inside of the liquid guiding cylinder 721 in a penetrating manner;

through leading the inside of leading-in liquid guide tube 721 of the inside lubricating oil of catheter 73, then evenly leading-in cylindrical brush 723 is inside through the play liquid hole 7211 again, utilizes cylindrical brush 723 and conveying chain 9a bottom surface laminating roll in-process, with lubricating oil smear in conveying chain 9a bottom surface, convenient operation has guaranteed the homogeneity that lubricating oil smeared.

As an improvement of the above technical solution, the pressurizing assembly 75 includes a push rod 751, a piston 752, a spring 753, a sleeve 754 and an air duct 755, wherein the sleeve 754 is inserted into the limit frame 71, the top end of the sleeve 754 is flush with the bottom surface of the second sliding interface 711, the push rod 751 is inserted into the sleeve 754, the top end of the push rod 751 extends out of the top end of the sleeve 754 and is attached to the bottom surface of the lifting plate 6, the piston 752 is fixed at the bottom end of the push rod 751, the piston 752 is inserted into the sleeve 754 in a sliding manner, the spring 753 is connected between the bottom end of the piston 752 and the bottom surface inside the sleeve 754, the bottom end of the sleeve 754 is connected with the air duct 755 in a penetrating manner, and one end of the air duct 755 extends through the limit frame 71 and the oil tank 74 in a penetrating manner;

when the conveying chain 9a needs to be greatly tensioned and adjusted, the lifting plate 6 is adjusted to descend to loosen the conveying chain 9a, so that the conveying chain 9a is attached to the cylindrical brush 723, in the process that the lifting plate 6 descends, the lifting plate 6 presses the push rod 751 into the sleeve 754, the piston 752 moves downwards and compresses the spring 753, the inner space of the sleeve 754 is reduced, the pressure inside the oil tank 74 is increased through the air duct 755 and the oil tank 74, lubricating oil inside the oil tank 74 is led into the liquid guide tube 721 through the liquid guide tube 73, the oiling operation inside the brush oil assembly 72 is simple, and the lubricating efficiency of the conveying chain 9a is improved.

The working principle and the using flow of the utility model are as follows:

firstly, according to fig. 1-5, the whole device is installed at the bottom of a loose conveying chain 9a, so that gears 94 of two groups of tensioning assemblies 9 are meshed with the conveying chain 9a at the same time, the side surface of the conveying chain 9a is limited by a second baffle 95, then a pneumatic rod 3 is started to push a fixed plate 4 to ascend, so that a lifting plate 6 is guided and slides upwards in a second sliding interface 711 of two limiting brackets 71, the lifting plate 6 drives the two groups of tensioning assemblies 9 to synchronously ascend, so that the two gears 94 simultaneously push the conveying chain 9a to be primarily tightened, then an adjusting turntable 5 is rotated, so that a screw 8 rotates in the lifting plate 6, meanwhile, the screw 8 rotates in the internal thread of a sliding shaft 92, because the sliding shaft 92 is limited in the rotating direction of the screw 8, the sliding shaft 92 moves on the screw 8 and slides in the first sliding interface 61, the sliding shaft 92 drives a fixed column 93 and the gears 94 to move, the distance between the two gears 94 is increased, the pushing range of the two gears 94 is adjusted more finely, and simultaneously, the gears 94 mesh and rotate at the bottom of the conveying chain 9a, so that the gears 94 are further adjusted with higher precision in the conveying chain 9a;

when the conveying chain 9a is tightened for a period of time and needs to be tightened again, the pneumatic rod 3 is started to pull the fixing plate 4 to descend, so that the lifting plate 6 drives the two gears 94 to descend, the descending of the conveying chain 9a is relieved, the conveying chain 9a is in a loose state, the bottom surface is attached to the cylindrical brush 723, meanwhile, in the process that the lifting plate 6 slides downwards in the second sliding interface 711, the lifting plate 6 presses the push rod 751 into the sleeve 754, the piston 752 moves downwards and compresses the spring 753, the inner space of the sleeve 754 is reduced, the inner pressure of the oil tank 74 is increased through the air duct 755 and the inner part of the oil tank 74, lubricating oil in the oil tank 74 is led into the inner part of the liquid guide tube 721 through the liquid guide tube 73, then is evenly led into the inner part of the cylindrical brush 723 through the liquid outlet hole 7211, the lubricating oil is smeared on the bottom surface of the conveying chain 9a in the laminating and rolling process by the cylindrical brush 723, the uniformity of smearing of the lubricating oil is guaranteed, friction between the gears 94 and the conveying chain 9a is reduced, and flexibility of tightening and adjusting the conveying chain 9a is guaranteed.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only for illustrating the technical solution of the present utility model, and are not limiting; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (6)

1. A conveyor chain tensioner characterized by: including bottom plate (1) and conveying chain (9 a), bottom plate (1) top surface vertical fixation has backup pad (2), backup pad (2) lateral wall parallel arrangement has two sets of stop gear (7), two sets of stop gear (7) inside slip grafting has lifter plate (6), lifter plate (6) both ends bottom surface all is connected with fixed plate (4), fixed plate (4) bottom surface is connected with pneumatic rod (3), pneumatic rod (3) are fixed in bottom plate (1) top surface, two first sliding interface (61) have been seted up to lifter plate (6) inside, two inside all slip grafting of first sliding interface (61) has tensioning assembly (9), tensioning assembly (9) are used for bulldozing up and are tightened up conveying chain (9 a), tensioning assembly (9) inside threaded connection has screw rod (8), screw rod (8) one end rotates to be connected in lifter plate (6) inside, and the other end runs through lifter plate (6) and is connected with regulation carousel (5).

2. A conveyor chain tensioner as in claim 1 wherein: tensioning assembly (9) are including first baffle (91), slide shaft (92), fixed column (93), gear (94) and second baffle (95), slide shaft (92) slip grafting is inside first sliding connection mouth (61), screw rod (8) threaded connection is inside slide shaft (92), slide shaft (92) one end is fixed with first baffle (91), first baffle (91) laminating is in lifter plate (6) lateral wall, slide shaft (92) other end outer wall rotation has cup jointed fixed column (93), fixed column (93) outer wall cup joints and is fixed with gear (94), the terminal surface that first baffle (91) were kept away from to fixed column (93) is fixed with second baffle (95), second baffle (95) diameter is greater than gear (94) external diameter.

3. A conveyor chain tensioner as in claim 1 wherein: the limiting mechanism (7) comprises a limiting frame (71), the limiting frame (71) is fixed on the side wall of the supporting plate (2), a second sliding interface (711) is formed in the limiting frame (71), and the lifting plate (6) is in sliding connection with the second sliding interface (711).

4. A conveyor chain tensioner as in claim 3 wherein: stop gear (7) still include brush oily subassembly (72), catheter (73), oil tank (74) and pressure boost subassembly (75), brush oily subassembly (72) and connect in spacing (71) lateral wall, brush oily subassembly (72) are drum-type structure and are used for laminating in the conveying chain (9 a) bottom surface of relaxation state, brush oily subassembly (72) bottom through connection has catheter (73), catheter (73) bottom is provided with oil tank (74), oil tank (74) are fixed in spacing (71) lateral wall, oil tank (74) are run through to catheter (73) bottom and are laminated in the inside bottom surface of oil tank (74), pressure boost subassembly (75) set up in spacing (71) inside, spacing (71) and the inside through connection of oil tank (74) are run through to pressure boost subassembly (75) one end.

5. A conveyor chain tensioner as in claim 4 wherein: the oil brushing assembly (72) comprises a liquid guide cylinder (721), a limiting ring (722) and a cylindrical brush (723), the liquid guide cylinder (721) is connected to the side wall of the limiting frame (71), the top end of the liquid guide tube (73) is in through connection with the inside of the liquid guide cylinder (721), the cylindrical brush (723) capable of adsorbing oil liquid is rotatably sleeved on the outer wall of the liquid guide cylinder (721), the limiting ring (722) is fixedly sleeved on the outer wall of the liquid guide cylinder (721), the limiting ring (722) is clamped on the inner wall of the cylindrical brush (723), and a plurality of liquid outlet holes (7211) are formed between the outer wall of the liquid guide cylinder (721) and the inside in a through mode.

6. A conveyor chain tensioner as in claim 5 wherein: the supercharging assembly (75) comprises a push rod (751), a piston (752), a spring (753), a sleeve (754) and an air duct (755), the sleeve (754) is inserted into the limiting frame (71), the top end of the sleeve (754) is flush with the bottom surface of the second sliding interface (711), the push rod (751) is inserted into the sleeve (754), the top end of the push rod (751) extends out of the top end of the sleeve (754) in a penetrating mode and is attached to the bottom surface of the lifting plate (6), the bottom end of the push rod (751) is fixedly provided with the piston (752), the piston (752) is inserted into the sleeve (754) in a sliding mode, the spring (753) is connected between the bottom end of the piston (752) and the bottom surface of the sleeve (754), the bottom end of the sleeve (754) is connected with the air duct (755) in a penetrating mode, and one end of the air duct (755) penetrates through the limiting frame (71) and the oil tank (74) in a penetrating mode.

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