Oil-free spider hand eccentric mechanism

Abstract

The utility model discloses an oil-free spider hand eccentric mechanism, and relates to the technical field of cigarette making machine equipment, in particular to an oil-free spider hand eccentric mechanism which comprises a main shaft, a middle synchronous belt wheel and a main transmission synchronous belt wheel, an axis synchronous belt wheel is installed at the rear end of the main shaft, and the outer surface of the rear end of the main shaft is sleeved with an eccentric shaft sleeve in an empty mode. A shaft sleeve synchronous pulley is installed at the rear end of the eccentric shaft sleeve, a bearing seat is sleeved on the outer surface of the eccentric shaft sleeve, a seat cover is installed at the front end of the bearing seat, a wheel body is installed at the front end of the main shaft, and cranks are inserted in the periphery of the wheel body. According to the oil-free spider hand eccentric mechanism, the rotating disc, the middle synchronous belt wheel, the eccentric shaft sleeve, the rotating disc and the crank are arranged in a matched mode, so that the oil-free spider hand eccentric mechanism has the effect that the phenomenon that cigarettes are polluted due to lubricating oil leakage can be avoided; the oil-free spider hand eccentric mechanism has the effect of being convenient to maintain.

Description

TECHNICAL FIELD

[0001] The utility model relates to cigarette making machine equipment technical field, concretely is a kind of oilless spider hand eccentric mechanism. BACKGROUND

[0002] At present, cigarette is taken from the cigarette transmission guide of cigarette making machine by spider hand and is sent to the cigarette receiving drum of cigarette connecting machine to complete the handover of cigarette, the original spider hand uses gear transmission mechanism, internal lubricating oil is injected to lubricate gear, gear shaft and the shell of spider hand are sealed by oil seal to prevent the leakage of lubricating oil, due to the long time high-speed operation of spider hand, a large amount of heat is generated by gear engagement, so that oil temperature and oil pressure increase, which can accelerate the aging of oil seal, at the same time, the long-term high-speed rotation of gear shaft can also cause the wear of oil seal, thereby causing the leakage of hydraulic oil, which can pollute cigarette and affect product quality, due to the large number of oil seals of spider hand, the replacement frequency is high, and the weight of spider hand is large, so the disassembly and assembly are difficult during maintenance, which is time-consuming and laborious. SUMMARY

[0003] (I) technical problem solved

[0004] In view of the deficiencies of the prior art, the utility model provides an oilless spider hand eccentric mechanism, which solves the problems in the above background.

[0005] (II) technical scheme

[0006] In order to achieve the above purpose, the utility model realizes the following technical scheme: an oilless spider hand eccentric mechanism, comprising a main shaft, an intermediate synchronous pulley and a main drive synchronous pulley, the rear end of the main shaft is provided with a shaft center synchronous pulley, the outer surface of the rear end of the main shaft is provided with an eccentric shaft sleeve, the rear end of the eccentric shaft sleeve is provided with a shaft sleeve synchronous pulley, the outer surface of the eccentric shaft sleeve is provided with a bearing seat, the front end of the bearing seat is provided with a seat cover, the front end of the main shaft is provided with a wheel body, the periphery of the wheel body is provided with a crank, the rear of the crank is provided with a rotating disc, the rear of the rotating disc is provided with a rotating disc seat hinged to the eccentric shaft sleeve.

[0007] Preferably, the intermediate synchronous pulley has two front and rear tooth grooves of the same size, the shaft sleeve synchronous pulley is coplanar with the front tooth groove and uses ordinary synchronous belt transmission, the main drive synchronous pulley and the shaft center synchronous pulley are coplanar with the rear tooth groove, and the three are connected by double-sided tooth synchronous belt, so that when the main drive synchronous pulley drives the main shaft to rotate, the eccentric shaft sleeve also rotates in the opposite direction through the intermediate synchronous pulley.

[0008] Preferably, the number of cranks is several and is uniformly inserted into the holes provided on the periphery of the wheel body and can rotate, and the rotating disc is fixed on the eccentric shaft of the crank through the mounting holes on the circumference of the rotating disc which are the same as the number of cranks.

[0009] Preferably, the middle of the crank is provided with a negative pressure air hole, the rear end of the negative pressure air hole is connected with the external negative pressure system on the wheel body, and the front end of the negative pressure air hole is connected with the suction disc for grabbing the cigarette.

[0010] Preferably, the front end face of the wheel body is provided with a front end cover, the front end cover is pressed in the hole arranged on the periphery of the wheel body through a thrust bearing, and the rear of the wheel body is provided with a rear cover which is close to the seat cover to avoid sundries from entering the inside of the mechanism.

[0011] Preferably, the rotating disc seat and the rotating disc are connected together and rotate synchronously, the rotating disc seat is sleeved on the eccentric shaft of the eccentric shaft sleeve, the eccentric shaft sleeve drives the rotating disc to rotate eccentrically around the main shaft through the rotating disc seat when rotating, and the main shaft also drives the wheel body to rotate in the opposite direction synchronously when rotating, so that all the cranks rotate around the main shaft and also rotate self-rotationally in the wheel body under the combined action of the rotating disc and the wheel body.

[0012] The utility model provides a kind of oilless spider hand eccentric mechanism, with the following beneficial effects:

[0013] 1、The oilless spider hand eccentric mechanism, the cooperation of rotating disc, intermediate synchronous pulley, eccentric shaft sleeve, rotating disc and crank is arranged, so that the oilless spider hand eccentric mechanism has the effect of preventing cigarette from being contaminated due to lubricating oil leakage, the rotating disc and the eccentric shaft sleeve are synchronously and reversely rotated by the transmission of intermediate synchronous pulley, the crank inserted around the rotating disc is rotated by the eccentric shaft sleeve when driving the rotating disc to rotate eccentrically, since the mechanism does not use gear engagement transmission, lubricating oil is not needed, and thus cigarette contamination due to lubricating oil leakage is prevented.

[0014] 2、The oilless spider hand eccentric mechanism, the cooperation of rotating disc, intermediate synchronous pulley, eccentric shaft sleeve, rotating disc and crank is arranged, so that the oilless spider hand eccentric mechanism has the effect of being easy to maintain, the crank is rotated by the eccentric mechanism when rotating with the rotating disc, and is also rotated by the rotating disc, since the eccentric mechanism does not need or only needs a small amount of lubrication when operating, the mechanism does not need to add lubricating oil when being maintained, and does not need to spend a lot of time to clean the parts contaminated by oil, and there is no oil seal installed, so that the damaged parts do not need to be replaced regularly, and the effect of being easy to maintain is achieved. ACCURACY OF DRAWINGS

[0015] Figure 1 It is a structure schematic view of the utility model sectional view;

[0016] Figure 2 It is a structure schematic view of the utility model eccentric shaft sleeve front view;

[0017] Figure 3 It is a structure schematic view of the utility model eccentric shaft sleeve left view;

[0018] Figure 4 It is the structure schematic view of the main view of the crank of the utility model;

[0019] Figure 5 It is the structure schematic view of the left view of the crank of the utility model.

[0020] In the figure: 1, main shaft; 2, intermediate synchronous pulley; 3, main transmission synchronous pulley; 4, shaft center synchronous pulley; 5, eccentric shaft sleeve; 6, shaft sleeve synchronous pulley; 7, bearing seat; 8, seat cover; 9, wheel body; 10, crank; 11, rotating disc; 12, rotating disc seat; 13, front end cover; 14, rear cover. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0022] Please refer to Figures 1 to 5The utility model provides a technical scheme: an oilless spider hand eccentric mechanism, including main shaft 1, intermediate synchronous pulley 2 and main drive synchronous pulley 3, the rear end of main shaft 1 is installed with axle core synchronous pulley 4, the outer surface of the rear end of main shaft 1 is empty and has eccentric shaft sleeve 5, empty and has that eccentric shaft sleeve 5 and main shaft 1 both sides can relatively freely rotate, the rear end of eccentric shaft sleeve 5 is installed with shaft sleeve synchronous pulley 6, intermediate synchronous pulley 2 has two same tooth grooves in front and back, shaft sleeve synchronous pulley 6 and front tooth groove are in the same plane and use ordinary synchronous belt drive, main drive synchronous pulley 3 and axle core synchronous pulley 4 are all in the same plane with rear tooth groove and three use double-sided tooth synchronous belt connection, so that when main drive synchronous pulley 3 drives main shaft 1 to rotate, also through intermediate synchronous pulley 2 drive eccentric shaft sleeve 5 reverse direction synchronous rotation, the outer surface of eccentric shaft sleeve 5 is empty and has bearing seat 7, empty and has that eccentric shaft sleeve 5 and bearing seat 7 both sides can relatively freely rotate, the front end of bearing seat 7 is installed with seat cover 8, the front end of main shaft 1 is installed with wheel body 9, the periphery of wheel body 9 is inserted with crank 10, the middle of crank 10 is set up with negative pressure air hole, the rear end of negative pressure air hole is connected with the external negative pressure system on wheel body 9, and the front end of negative pressure air hole is connected with the sucking disc of cigarette grabbing, the rear of crank 10 is installed with rotating disc 11, the number of crank 10 is inserted in the hole set up in the periphery of wheel body 9 and can rotate, and rotating disc 11 is fixed on the eccentric shaft of crank 10 through the same number of mounting holes on the circumference thereof, the rear of rotating disc 11 is installed with rotating disc seat 12 articulated with eccentric shaft sleeve 5, and rotating disc seat 12 is connected with rotating disc 11 and rotates synchronously, rotating disc seat 12 is empty and has on the eccentric shaft of eccentric shaft sleeve 5, when eccentric shaft sleeve 5 rotates, rotating disc 11 is driven by rotating disc seat 12 and rotates eccentrically around main shaft 1, when eccentric shaft sleeve 5 rotates, main shaft 1 also drives wheel body 9 and rotates synchronously in the opposite direction, at this time, all cranks 10 not only rotate around main shaft 1 but also rotate in wheel body 9 under the combined action of rotating disc 11 and wheel body 9, the front end of wheel body 9 is installed with front end cover 13, front end cover 13 is pressed in the hole set up in the periphery of wheel body 9 through the thrust bearing crank 10, the rear of wheel body 9 is installed with rear cover 14, and rear cover 14 is almost together with seat cover 8 to avoid sundries entering the inside of the mechanism.

[0023] When the structure is used, the bearing seat 7 is fixed, the main shaft 1 and the eccentric shaft sleeve 5 in the bearing seat 7 can rotate, the shaft center synchronous pulley 4 installed at the rear end of the main shaft 1 is connected with the main transmission synchronous pulley 3 through the double-tooth synchronous belt and is synchronously driven, the shaft sleeve synchronous pulley 6 installed at the rear end of the eccentric shaft sleeve 5 is connected with the intermediate synchronous pulley 2 through the synchronous belt and is synchronously driven, the middle position of the double-tooth synchronous belt is also connected with the intermediate synchronous pulley 2 and is synchronously driven, the diameters of the intermediate synchronous pulley 2, the main transmission synchronous pulley 3 and the shaft sleeve synchronous pulley 6 are the same, when the main transmission synchronous pulley 3 rotates, the intermediate synchronous pulley 2 and the shaft center synchronous pulley 4 can be synchronously driven through the double-tooth synchronous belt, the main shaft 1 and the eccentric shaft sleeve 5 rotate synchronously but in opposite directions, when the main shaft 1 rotates, the wheel body 9 at the front end is synchronously driven to rotate, the periphery of the wheel body 9 is uniformly inserted with a plurality of cranks 10, at this time, all the cranks 10 also rotate around the main shaft 1, the cranks 10 are connected with the wheel body 9 through bearings, that is, the cranks 10 can rotate in the wheel body 9, then the rear ends of all the cranks 10 are connected with the rotating disc 11, the rotating disc 11 is hinged with the eccentric shaft of the eccentric shaft sleeve 5 through the rotating disc 11 seat, when the eccentric shaft sleeve 5 rotates, the rotating disc 11 can be driven to rotate eccentrically around the main shaft 1 through the eccentric shaft, finally, the eccentric rotating disc 11 drives the cranks 10 to rotate in the wheel body 9, therefore, as long as the main transmission synchronous pulley 3 rotates, the cranks 10 can be driven to rotate around the main shaft 1 and also rotate in place, the front end of the middle hole of the crank 10 is installed with a suction cup for sucking cigarettes, the rear end of the suction cup is connected with a system negative pressure, therefore, the cigarettes can be sucked from the cigarette conveying guide and conveyed to the cigarette receiving drum of the cigarette connecting machine.

[0024] As described above, the oil-free spider hand eccentric mechanism can make the rotating disc 11 and the eccentric shaft sleeve 5 synchronously and reversely rotate through the transmission of the intermediate synchronous pulley 2, when the eccentric shaft sleeve 5 drives the rotating disc 11 to rotate eccentrically, the cranks 10 inserted around the periphery of the rotating disc 11 can rotate in place, since the mechanism does not use gear meshing transmission, it does not need lubricating oil, therefore, the pollution of the cigarettes caused by the leakage of lubricating oil can be avoided, since the eccentric mechanism does not need or only needs a small amount of lubrication when it operates, the mechanism does not need to add lubricating oil when it is maintained and does not need to spend a lot of time to clean the oil-polluted parts, at the same time, there is no oil seal, therefore, the damaged part does not need to be replaced regularly, and the effect of being convenient to maintain is achieved.

[0025] The above describes only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. An oil-free spider hand eccentric mechanism comprising a main shaft (1), an intermediate synchronous pulley (2) and a main drive synchronous pulley (3), characterized in that: The rear end of the main shaft (1) is provided with an axis synchronous pulley (4), the outer surface of the rear end of the main shaft (1) is provided with an eccentric shaft sleeve (5), the rear end of the eccentric shaft sleeve (5) is provided with a shaft sleeve synchronous pulley (6), the outer surface of the eccentric shaft sleeve (5) is provided with a bearing seat (7), the front end of the bearing seat (7) is provided with a seat cover (8), the front end of the main shaft (1) is provided with a wheel body (9), the periphery of the wheel body (9) is provided with a plurality of cranks (10), the rear end of the crank (10) is provided with a rotating disc (11), the rear end of the rotating disc (11) is provided with a rotating disc seat (12) which is hinged to the eccentric shaft sleeve (5).

2. The oil-free spider hand eccentric mechanism of claim 1, wherein: The intermediate synchronous pulley (2) has two front and rear tooth grooves which are of the same size, the shaft sleeve synchronous pulley (6) is coplanar with the front tooth groove and is driven by a common synchronous belt, the main transmission synchronous pulley (3) and the axis synchronous pulley (4) are coplanar with the rear tooth groove and are connected by a double-sided tooth synchronous belt, so that when the main transmission synchronous pulley (3) drives the main shaft (1) to rotate, the eccentric shaft sleeve (5) is also driven by the intermediate synchronous pulley (2) to rotate in the opposite direction.

3. The oil-free spider hand eccentric mechanism of claim 1, wherein: The plurality of cranks (10) are rotatably inserted into the holes provided on the periphery of the wheel body (9), and the rotating disc (11) is fixed to the eccentric shaft of the crank (10) through the mounting holes provided on the circumference of the rotating disc (11).

4. The oil-free spider hand eccentric mechanism of claim 1, wherein: The crank (10) is provided with a negative pressure air hole in the middle, the rear end of the negative pressure air hole is connected with the external negative pressure system on the wheel body (9), and the front end of the negative pressure air hole is connected with the suction disc for grabbing cigarettes.

5. The oil-free spider hand eccentric mechanism of claim 1, wherein: The front end of the wheel body (9) is provided with a front end cover (13), the front end cover (13) is pressed into the hole provided on the periphery of the wheel body (9) through the thrust bearing, the rear end of the wheel body (9) is provided with a rear cover (14), and the rear cover (14) is almost in contact with the seat cover (8) to prevent sundries from entering the inside of the mechanism.

6. The oil-free spider hand eccentric mechanism of claim 1, wherein: The rotating disc seat (12) is connected with the rotating disc (11) and rotates synchronously, the rotating disc seat (12) is sleeved on the eccentric shaft of the eccentric shaft sleeve (5), when the eccentric shaft sleeve (5) rotates, the rotating disc (11) is driven by the rotating disc seat (12) to rotate eccentrically around the main shaft (1), when the eccentric shaft sleeve (5) rotates, the main shaft (1) also drives the wheel body (9) to rotate in the opposite direction synchronously, at this time, all the cranks (10) not only rotate around the main shaft (1) but also rotate around the wheel body (9) under the combined action of the rotating disc (11) and the wheel body (9).

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