CN216801178U - Friction plate plane straightening machine - Google Patents

Abstract

The utility model discloses a friction plate plane straightener.A power unit is arranged in a rack; a bottom plate is arranged above the power unit and arranged at the upper end of the frame; each first lower gearwheel and each second lower gearwheel are respectively meshed with each lower working roller gear on two sides of each lower side plate; each first lower gearwheel and each second lower gearwheel are positioned below each lower working roll gear; the rear end of each first upper gear shaft can rotatably penetrate through the upper side plate and is provided with a first upper gear wheel, the rear end of each second upper gear shaft can rotatably be connected with the upper side plate, the two sides of the lower end of the top plate are respectively provided with a first upper stop block and a second upper stop block, a feed port is formed between the first lower stop block and the first upper stop block, and a discharge port is formed between the second lower stop block and the second upper stop block. The utility model not only improves the quality and the efficiency, but also reduces the labor cost and the labor intensity of operators, and has the advantages of low manufacturing cost, simple operation, difficult damage and the like.

Description

Friction plate plane straightening machine

Technical Field

The utility model relates to a straightening machine, in particular to a plane straightening machine for friction plates and steel sheets of a clutch of a motorcycle.

Background

In the prior art, when the plane of a friction plate and a steel sheet of a clutch of a motorcycle is straightened, because special straightening equipment is not available, straightening can be carried out only by manpower, so that the processing efficiency is low and the quality is poor; moreover, because the number of the parts is large, a plurality of operators are required to carry out straightening work at the same time, the labor cost is high, and the labor intensity of the operators is high.

Therefore, the technical problem to be solved by the present invention is to provide a plane straightener for friction plates.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks of the prior art, the present invention provides a friction plate plane straightener which can effectively solve the above-mentioned problems.

In order to achieve the purpose, the utility model provides a friction plate plane straightening machine which comprises a rack, wherein a power unit is arranged in the rack; a bottom plate is arranged above the power unit and arranged at the upper end of the rack;

two lower side plates are symmetrically arranged on the bottom plate, sixteen leveling lower press rolls are arranged between the lower side plates, two ends of each leveling lower press roll can rotatably penetrate through each lower side plate respectively, and a lower working roll gear is arranged;

two groups of lower transmission units are arranged between the lower side plates, each group of lower transmission units comprises four first lower gear shafts, and a second lower gear shaft is arranged between two adjacent first lower gear shafts in each group of lower transmission units; the front end and the rear end of each first lower gear shaft are rotationally connected with each lower side plate, the front end of each first lower gear shaft can rotatably penetrate through the lower side plates and is provided with a first lower big gear, the front end and the rear end of each second lower gear shaft can rotatably penetrate through each lower side plate and is provided with a second lower big gear,

each first lower gearwheel and each second lower gearwheel are respectively meshed with each lower working roll gear on two sides of each lower side plate; each first lower gearwheel and each second lower gearwheel are positioned below each lower working roll gear;

two chain wheel shafts are arranged between the lower side plates, the front end and the rear end of each chain wheel shaft are rotatably connected with the lower side plates, the front end of each chain wheel shaft rotatably penetrates through the lower side plates and is provided with a third lower large gear meshed with the first lower large gear, and the outer side of the third lower large gear is provided with a lower driven chain wheel sleeved on the chain wheel shafts;

a top plate is arranged above the bottom plate, and two upper side plates matched with the lower side plates for use are arranged between the top plate and the lower side plates; a leveling upper compression roller is arranged between two adjacent leveling lower compression rollers, two ends of each leveling upper compression roller can respectively rotatably penetrate through each upper side plate, and an upper working roller gear is arranged on each leveling upper compression roller;

seven first upper gear shafts are arranged between the upper side plates, a second upper gear shaft is arranged between every two adjacent first upper gear shafts, the front end of each first upper gear shaft is rotatably connected with the upper side plates, the rear end of each first upper gear shaft rotatably penetrates through the upper side plates and is provided with a first upper large gear, the rear end of each second upper gear shaft is rotatably connected with the upper side plates, the front end of each second upper gear shaft rotatably penetrates through the upper side plates and is provided with a second upper large gear, and each first upper large gear and each second upper large gear are respectively meshed with each upper working roller gear; the two upper driven chain wheels are respectively arranged on the two first upper large gears, and three first upper large gears are arranged between the two upper driven chain wheels;

the lower driven chain wheel and the upper driven chain wheel are driven by a power unit; the feed inlet is formed between the first lower stop block and the first upper stop block, and the discharge outlet is formed between the second lower stop block and the second upper stop block.

In order to make the structure more compact and make the stability better, the power unit comprises a motor arranged in the rack, a speed reducer connected with the motor is arranged above the motor, two driving sprockets are arranged on the speed reducer, and each driving sprocket is connected with each lower driven sprocket and each upper driven sprocket through chains.

In order to be convenient for adjust and improve stability, the both sides of frame are provided with respectively with lower driven sprocket and the cooperation of last driven sprocket tensioning sprocket who uses.

In order to avoid damage to parts in the device and prolong the service life of the device, an upper protective cover and a lower protective cover which are detachable are arranged on two sides of the rack, the motor and the speed reducer are positioned in the lower protective cover, and the lower transmission unit, the first upper gear shaft and the second upper gear shaft are positioned in the upper protective cover.

In order to adjust the leveling upper compression roller and the leveling lower compression roller and further improve the practicability, both sides of each lower side plate are provided with supporting parts, both sides of each upper side plate are provided with guiding parts, and both sides of the top plate are provided with limiting parts;

adjusting units with the same structure are arranged on the two sides of the rack; the adjusting unit comprises two adjusting rods, the lower ends of the adjusting rods are respectively connected with the upper ends of the supporting parts, the lower half section of each adjusting rod is provided with a threaded section, a lower adjusting nut is sleeved on the threaded section and located between the supporting parts and the guide parts, the upper ends of the adjusting rods can penetrate through the guide parts in a sliding mode and are simultaneously connected with the cross beam, and an upper adjusting bolt matched with the limiting part for use is arranged on the cross beam.

In order to facilitate the injection of lubricating oil and prolong the service life, a plurality of oil injection holes penetrating through the top plate are formed in the top plate.

The utility model has the beneficial effects that: the utility model replaces the existing manual straightening, not only improves the quality and the efficiency, but also reduces the labor cost and the labor intensity of operators, and simultaneously has the advantages of low manufacturing cost, simple operation, difficult damage and the like.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention.

Fig. 2 is a left side view schematic diagram of fig. 1.

Fig. 3 is a schematic diagram of the right view structure of fig. 1.

Fig. 4 is a schematic top view of the structure of fig. 1.

Fig. 5 is a schematic structural view of the present invention without mounting the upper shield and the lower shield.

Fig. 6 is a partially enlarged schematic view of a portion a in fig. 5.

Fig. 7 is a schematic perspective view of the present invention without mounting the upper shield and the lower shield.

Fig. 8 is a schematic structural view of a lower side plate provided with a first lower large gear, a lower driven sprocket and other parts.

Fig. 9 is a schematic perspective view of the structure of fig. 8 without the second bottom stopper.

FIG. 10 is a schematic top view of the un-installed leveling lower roll and lower work roll gears of FIG. 9.

Fig. 11 is a schematic view of the connection structure of the upper side plate with the second upper large gear and the upper work roll gear.

Fig. 12 is a perspective view of the upper side plate (single) and the first upper gear shaft.

Fig. 13 is another perspective view of fig. 12.

Detailed Description

The utility model is further illustrated by the following examples in conjunction with the accompanying drawings:

in the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are merely for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," and "connected" are to be construed broadly, e.g., as being fixed or detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 to 13, a friction plate plane straightener comprises a frame 1, wherein the frame 1 is a main body and a bearing body of the straightener, and is made of a steel structure, and four mounting holes (not shown) can be formed in the bottom of the frame for wooden case packaging and equipment fixing.

A power unit 2 is arranged in the frame 1; a bottom plate 3 is arranged above the power unit 2, and the bottom plate 3 is arranged at the upper end of the rack 1;

two lower side plates 5 are symmetrically arranged on the bottom plate 3, sixteen leveling lower press rolls 6 are arranged between the lower side plates 5, two ends of each leveling lower press roll 6 respectively penetrate through the lower side plates 5 in a rotatable mode, and a lower working roll gear 7 is arranged;

two groups of lower transmission units 8 are arranged between the lower side plates 5, each group of lower transmission units 8 comprises four first lower gear shafts 9, and a second lower gear shaft 10 is arranged between two adjacent first lower gear shafts 9 in each group of lower transmission units 8; in the utility model, the number of the first lower gear shafts 9 is eight in total, the number of the second lower gear shafts 10 is 6 in total, the front end and the rear end of each first lower gear shaft 9 are rotatably connected with each lower side plate 5, the front end of each first lower gear shaft can rotatably penetrate through the lower side plate 5 and is provided with a first lower large gear 11, the front end and the rear end of each second lower gear shaft 10 are rotatably connected with each lower side plate 5, the rear end of each second lower gear shaft can rotatably penetrate through the lower side plate 5 and is provided with a second lower large gear 12, the specific meshing mode is that the number of the first lower large gears 11 is eight, and each first lower large gear 11 is respectively meshed with two adjacent lower working roller gears 7 (see fig. 8); the number of the second lower large gears 12 is 6, each second lower large gear 12 is respectively meshed with two adjacent lower working roll gears 7, wherein four lower working roll gears 7 are not in linkage relationship with each second lower large gear 12 (as shown in fig. 9, four lower working roll gears 7 which are not in linkage relationship with the second lower large gears 12 are marked by D1).

Each first lower gearwheel 11 and each second lower gearwheel 12 are respectively meshed with each lower working roll gear 7 on two sides of each lower side plate 5; each first lower gearwheel 11 and each second lower gearwheel 12 are located below each lower working roll gear 7;

two sprocket shafts 13 are arranged between the lower side plates 5, the front end and the rear end of each sprocket shaft 13 are rotatably connected with each lower side plate 5, the front end of each sprocket shaft 13 rotatably penetrates through the lower side plates 5 and is provided with third lower large gears 15 meshed with the first lower large gears 11, in the utility model, four first lower large gears 11 are arranged between the two third lower large gears 15, and the two third lower large gears 15 are respectively meshed with the first lower large gears 11 at the C1 mark and the C2 mark (see fig. 8).

A lower driven chain wheel 16 sleeved on the chain wheel shaft 13 is arranged on the outer side of the third lower large gear 15;

a top plate 17 is arranged above the bottom plate 3, and two upper side plates 18 matched with the lower side plates 5 for use are arranged between the top plate 17 and the lower side plates 5; a leveling upper press roll 19 is arranged between two adjacent leveling lower press rolls 6, the number of the leveling upper press rolls 19 is 15, two ends of each leveling upper press roll 19 respectively and rotatably penetrate through each upper side plate 18, and an upper working roll gear 20 is arranged; in the present invention, the number of the upper work roll gears 20 is 30 in total (15 on both sides).

Seven first upper gear shafts 21 are arranged between the upper side plates 18, a second upper gear shaft 22 is arranged between every two adjacent first upper gear shafts 21, the front end of each first upper gear shaft 21 is rotatably connected with the upper side plates 18, the rear end of each first upper gear shaft 21 rotatably penetrates through the upper side plates 18 and is provided with a first upper large gear 23, the rear end of each second upper gear shaft 22 is rotatably connected with the upper side plates 18, the front end of each second upper gear shaft 22 rotatably penetrates through the upper side plates 18 and is provided with second upper large gears 26 (the number of the second upper large gears 26 is 6), and each first upper large gear 23 and each second upper large gear 26 are respectively meshed with each upper working roller gear 20; the two upper driven chain wheels 27 are respectively arranged on the two first upper large gears 23, and three first upper large gears 23 are arranged between the two upper driven chain wheels 27; wherein the two upper driven sprockets 27 are respectively connected to the outer sides of the first upper large gears 23 at the E1 mark and the E2 mark (see fig. 13).

The lower driven sprocket 16 and the upper driven sprocket 27 are both driven by the power unit 2; a first lower stop 28 and a second lower stop 29 are arranged on both sides of the upper end of the bottom plate 3, a first upper stop 30 and a second upper stop 31 are arranged on both sides of the lower end of the top plate 17, a feed port 32 is formed between the first lower stop 28 and the first upper stop 30, and a discharge port 33 is formed between the second lower stop 29 and the second upper stop 31.

In order to improve the structural stability, the power unit 2 includes a motor 35 disposed in the frame 1, a speed reducer 36 connected to the motor 35 is disposed above the motor 35, two driving sprockets 37 are disposed on the speed reducer 36, and each driving sprocket 37 is connected to each lower driven sprocket 16 and each upper driven sprocket 27 through a chain 38. And tensioning chain wheels matched with the lower driven chain wheel 16 and the upper driven chain wheel 27 are respectively arranged on two sides of the frame 1. During the in-service use, can set up the adjustment mechanism who is used for adjusting tension sprocket on frame 1, this adjustment mechanism and tension sprocket are prior art, and optional arbitrary section can realize the structure of this function all can, and no longer give unnecessary detail here.

In order to prolong the service life of the device, the two sides of the frame 1 are respectively provided with an upper protective cover 50 and a lower protective cover 51 which are detachable, the motor 35 and the speed reducer 36 are positioned in the lower protective cover 51, and the lower transmission unit 8, the first upper gear shaft 21 and the second upper gear shaft 22 are positioned in the upper protective cover 50. By taking down the upper protective cover, lubricating oil can be conveniently added to each gear.

In order to improve the practicability and facilitate the adjustment, a supporting part 52 is arranged on each of two sides of each lower side plate 5, a guiding part 53 is arranged on each of two sides of each upper side plate 18, and a limiting part 55 is arranged on each of two sides of the top plate 17;

adjusting units 56 with the same structure are arranged on both sides of the rack 1; the adjusting unit 56 comprises two adjusting rods 57, the lower end of each adjusting rod 57 is connected with the upper end of each supporting portion 52, the lower half section of each adjusting rod 57 is provided with a threaded section, a lower adjusting nut 58 is sleeved on the threaded section, the lower adjusting nut 58 is positioned between the supporting portion 52 and the guiding portion 53, the upper end of each adjusting rod 57 can penetrate through the guiding portion 53 in a sliding mode at one time and is connected with a cross beam 59, and an upper adjusting bolt 60 matched with the limiting portion 55 for use is arranged on the cross beam 59. Meanwhile, in order to enhance the intuitiveness of the adjustment, a dial indicator can be preferably added at the adjustment part for indication.

The top plate 17 is provided with a plurality of oil holes 99 penetrating through the top plate 17.

The device is applied to the plane straightening work of friction plates and steel sheets of the clutch of the motorcycle.

The utility model has the following parameters:

1. the type of the friction plate to be processed is as follows: a friction plate (80-120 mm of excircle);

2. thickness of the workpiece: 2.8-3.10 mm;

3. processing speed: about 2 seconds per piece;

4. machine tool quality: about 150 Kg.

Considerations when using the device:

1. when the machine tool works, a human body cannot contact any moving part of the machine tool;

2. the equipment is a roller type plane straightener, when a workpiece enters the equipment, the working rollers automatically finish the plane straightening work of the workpiece, care is taken to place when the workpiece is placed, and the human body part is prevented from being pulled by the workpiece to cause injury accidents;

3. when the card appears, please in time close power and air supply, stop the lathe operation, then loosen the top cap bolt, heighten the top side board through tools such as spanner, adopt devices such as iron hook to take out the work piece that is blocked.

4. Before use, please access the power supply as required: the power supply requirement of the equipment is 380V +/-10V/50 HZ in a three-phase five-wire system, and whether the power supply voltage meets the requirement is confirmed before use. Marking U/V/W/N/grounding characters on an inlet wire of a power supply before delivery, and please carry out power supply inlet work according to requirements; after the connection, please note the rotation direction of the motor, when the direction is reversed, the device will have vibration sound. After the power supply is introduced, the protective cover is taken down firstly, and the working state of the tension chain wheel is observed to analyze whether the rotation direction of the motor is correct or not. Only when the rotation direction of the motor is correct, the tension chain wheel can work normally.

5. In order to effectively ensure good lubrication of the machine tool and prolong the service life of the machine tool, lubricating oil can be injected into the oil hole of the top plate periodically through an oil gun so as to meet the requirement of equipment lubrication; when appropriate, a little lubricating oil may be dropped into the chain of the chain drive and the gear of the gear drive.

The optimal working principle of the utility model is as follows:

during operation, can adjust earlier according to actual need and level clearance between the lower compression roller 6 and the last compression roller of levelling, concrete mode is:

adjusting the clearance to be large: loosening the upper adjusting bolt 60, and rotating the lower adjusting nut 58 counterclockwise to enable the lower adjusting nut 58 to move upwards; the lower adjusting nuts 58 on both sides need to be adjusted synchronously, and then the upper adjusting bolts 60 are locked.

And (3) gap adjustment: loosening the upper adjusting bolt 60 and rotating the lower adjusting nut clockwise to enable the lower adjusting nut 58 to move downwards; the lower adjusting nuts 58 on both sides need to be adjusted synchronously, and then the upper adjusting bolts are locked.

In order to enhance the visibility of the adjustment, the device is preferably equipped with a digital display dial indicator, and the magnitude of the adjustment amount can be judged according to the change of the dial indicator during adjustment.

The specific adjusting process comprises the following steps:

A. firstly, adjusting the gap between an upper roller and a lower roller (a leveling upper roller and a leveling lower roller) on the outlet side according to the adjusting method, wherein the gap value is preferably larger than the thickness of a workpiece (not shown in the figure) by 0.1-0.2mm, and the uniformity of the gap between the upper roller and the lower roller is taken care of during adjustment so as to ensure that the rotating axes of the upper roller and the lower roller are parallel;

B. the second step is that: adjusting the gap between the upper and lower rods at the inlet side according to the adjusting method; when steel sheet straightening is carried out, the gap value is preferably 0.3-0.5mm smaller than the thickness of a workpiece, the gap value is too small, the working load of equipment is increased, the equipment is damaged, the straightening quality is not high due to too large gap value, and comprehensive consideration needs to be carried out according to the material of a workpiece thickness meter during adjustment; when the aluminum framework friction plate is straightened, the gap value is preferably smaller than the thickness of a workpiece by 0.2-0.3mm, the gap value is too small, the working load of equipment is increased, the equipment is damaged, the workpiece is broken, the straightening quality is not high due to too large gap value, and the straightening quality needs to be comprehensively considered according to the material of a workpiece thickness meter during adjustment; in the adjusting process, the uniformity of the gap between the upper and lower rods is noticed to ensure that the rotating axes of the upper and lower rods are parallel.

Adjusting scheme for analyzing upper and lower rollers according to warping direction of straightened workpiece

A. When the warping direction of the workpiece is the front-back direction (workpiece moving direction), the main reason for this phenomenon is that the gap value between the upper and lower rollers at the inlet side is too large or the gap value between the upper and lower rollers at the outlet side is too small, and the gap value between the upper and lower rollers at the inlet or outlet side can be properly adjusted;

B. when the workpiece is warped in the left-right direction (relative to the direction of movement of the workpiece), this phenomenon is mainly caused by the fact that the axes of the upper and lower rollers on the inlet side or the outlet side are not parallel to each other, and the axis of the upper and lower rollers can be adjusted by appropriately adjusting the lower adjusting nut on either the inlet side or the outlet side.

An operator enters a workpiece between the lower side plate and the upper side plate through the feed inlet 32, the motor and the speed reducer drive the upper driven chain wheel 27 and the lower driven chain wheel 16 to rotate, the upper driven chain wheel 27 and the lower driven chain wheel 16 drive part of the upper working roller gear 20 and the lower working roller gear 7 to move, and the leveling lower compression roller 6 and the leveling upper compression roller are matched to enable the workpiece to move towards the discharge outlet 33 and simultaneously straighten the workpiece.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims (6)

1. A friction plate plane straightener is characterized in that: comprises a frame (1), wherein a power unit (2) is arranged in the frame (1); a bottom plate (3) is arranged above the power unit (2), and the bottom plate (3) is arranged at the upper end of the rack (1);

two lower side plates (5) are symmetrically arranged on the bottom plate (3), sixteen leveling lower press rolls (6) are arranged between the lower side plates (5), two ends of each leveling lower press roll (6) respectively penetrate through the lower side plates (5) in a rotatable manner, and a lower working roll gear (7) is arranged;

two groups of lower transmission units (8) are arranged between the lower side plates (5), each group of lower transmission units (8) comprises four first lower gear shafts (9), and a second lower gear shaft (10) is arranged between two adjacent first lower gear shafts (9) in each group of lower transmission units (8); the front end and the rear end of each first lower gear shaft (9) are rotationally connected with each lower side plate (5), the front end of each first lower gear shaft can rotatably penetrate through the lower side plates (5) and is provided with a first lower big gear (11), the front end and the rear end of each second lower gear shaft (10) are rotationally connected with each lower side plate (5), the rear end of each second lower gear shaft can rotatably penetrate through the lower side plates (5) and is provided with a second lower big gear (12),

each first lower gearwheel (11) and each second lower gearwheel (12) are respectively meshed with each lower working roller gear (7) on two sides of each lower side plate (5); each first lower gearwheel (11) and each second lower gearwheel (12) are positioned below each lower working roll gear (7);

two chain wheel shafts (13) are arranged between the lower side plates (5), the front end and the rear end of each chain wheel shaft (13) are rotatably connected with each lower side plate (5), the front end of each chain wheel shaft can rotatably penetrate through the lower side plates (5) and is provided with a third lower large gear (15) meshed with the first lower large gear (11), and the outer side of the third lower large gear (15) is provided with a lower driven chain wheel (16) sleeved on the chain wheel shaft (13);

a top plate (17) is arranged above the bottom plate (3), and two upper side plates (18) matched with the lower side plates (5) for use are arranged between the top plate (17) and the lower side plates (5); a leveling upper press roll (19) is arranged between two adjacent leveling lower press rolls (6), two ends of each leveling upper press roll (19) respectively penetrate through the upper side plates (18) in a rotatable manner, and an upper working roll gear (20) is arranged;

seven first upper gear shafts (21) are arranged between the upper side plates (18), a second upper gear shaft (22) is arranged between every two adjacent first upper gear shafts (21), the front end of each first upper gear shaft (21) is rotatably connected with the upper side plates (18), the rear end of each first upper gear shaft (21) rotatably penetrates through the upper side plates (18) and is provided with a first upper large gear (23), the rear end of each second upper gear shaft (22) is rotatably connected with the upper side plates (18), the front end of each second upper gear shaft (22) rotatably penetrates through the upper side plates (18) and is provided with a second upper large gear (26), and each first upper large gear (23) and each second upper large gear (26) are respectively meshed with each upper working roller gear (20); the two upper driven chain wheels (27) are respectively arranged on the two first upper large gears (23), and three first upper large gears (23) are arranged between the two upper driven chain wheels (27);

the lower driven chain wheel (16) and the upper driven chain wheel (27) are driven by a power unit (2); the upper end both sides of bottom plate (3) all are provided with first dog (28) and second dog (29) down, the lower extreme both sides of roof (17) all are provided with dog (30) and second dog (31) on first dog (30), form feed inlet (32) between dog (28) and the first dog (30), second dog (29) and form discharge gate (33) between dog (31) on the second.

2. A friction plate leveler as defined in claim 1 wherein: the power unit (2) comprises a motor (35) arranged in the rack (1), a speed reducer (36) connected with the motor (35) is arranged above the motor (35), two driving sprockets (37) are arranged on the speed reducer (36), and each driving sprocket (37) is connected with each lower driven sprocket (16) and each upper driven sprocket (27) through a chain (38).

3. A friction plate leveler as defined in claim 2 wherein: and tensioning chain wheels matched with the lower driven chain wheel (16) and the upper driven chain wheel (27) for use are respectively arranged on two sides of the rack (1).

4. A friction plate leveler as defined in claim 2 wherein: an upper protective cover (50) and a lower protective cover (51) which are detachable are arranged on two sides of the rack (1), the motor (35) and the speed reducer (36) are located in the lower protective cover (51), and the lower transmission unit (8), the first upper gear shaft (21) and the second upper gear shaft (22) are located in the upper protective cover (50).

5. A friction plate leveler as defined in any one of claims 1 to 4 wherein: supporting parts (52) are arranged on two sides of each lower side plate (5), guiding parts (53) are arranged on two sides of each upper side plate (18), and limiting parts (55) are arranged on two sides of the top plate (17);

adjusting units (56) with the same structure are arranged on the two sides of the rack (1); the adjusting unit (56) comprises two adjusting rods (57), the lower end of each adjusting rod (57) is connected with the upper end of each supporting portion (52) respectively, the lower half section of each adjusting rod (57) is provided with a threaded section, a lower adjusting nut (58) is sleeved on the threaded section, the lower adjusting nut (58) is located between the supporting portion (52) and the guide portion (53), the upper end of each adjusting rod (57) can penetrate through the guide portion (53) in a sliding mode once and is connected with a cross beam (59) simultaneously, and an upper adjusting bolt (60) matched with the limiting portion (55) in use is arranged on the cross beam (59).

6. A friction plate leveler as defined in claim 2 wherein: the top plate (17) is provided with a plurality of oil holes (99) penetrating through the top plate (17).

Images