CN212832518U

CN212832518U - Drum shaft supporting device for grinding machine

Info

Publication number: CN212832518U
Application number: CN202021642670.0U
Authority: CN
Inventors: 葛建华; 陈春明; 周志飞; 傅强
Original assignee: Changshu Electric Equipment Co ltd
Current assignee: Changshu Electric Equipment Co ltd
Priority date: 2020-08-10
Filing date: 2020-08-10
Publication date: 2021-03-30
Anticipated expiration: 2030-08-10

Abstract

A drum shaft supporting device of a grinder belongs to the technical field of electric power construction machines. The winching machine comprises a base, a transfer case, a front winding drum and a rear winding drum, wherein the transfer case is arranged on the base, the front winding drum and the rear winding drum are arranged in a state of corresponding front and rear to each other, and a right shaft head of a front winding drum shaft of the front winding drum and a right shaft head of a rear winding drum shaft of the rear winding drum are respectively in transmission connection with the transfer case; the winding drum shaft supporting device comprises a winding drum shaft head supporting seat and a bearing seat supporting mechanism, a front winding drum left shaft head of a front winding drum and a rear winding drum left shaft head of a rear winding drum are rotatably supported on the winding drum shaft head supporting seat, the winding drum shaft head supporting seat is supported on the bearing seat supporting mechanism, and the bearing seat supporting mechanism is arranged at the left end of the machine seat. The left ends of the front and rear winding drums can be well supported; the reel is convenient to inspect and protect; the whole structure is simple, and the device can be conveniently manufactured and used.

Description

Drum shaft supporting device for grinding machine

Technical Field

The utility model belongs to the technical field of the electric power construction machines, concretely relates to reel axle supporting device of hank mill.

Background

The aforesaid winches are also called winches, and are widely used in the construction of power transmission and transformation lines, such as the operation of towers, poles, cranes, tractors, cables, tighteners, etc., and are found in published chinese patent documents, such as CN201171618Y (winches), CN208500194U (10 KN light motorized winches), CN203582373U (anti-interference overload protection type power generation winches), CN103010996A (overload protection type intelligent winches), and CN207313005U (motorized winches with intelligent overload protection devices), etc.

The working principle of the grinding machine is as follows: the gasoline engine drives the speed change mechanism, the speed change mechanism drives the winch or the winding drum, and the winch or the winding drum drives the traction rope (rope winding or rope unwinding).

Compared with a single-drum grinder, the safety coefficient of the double-drum grinder is much higher, because the double drums have good synergistic effect, for example, the safety in the process of lifting heavy objects is good, so that the probability of accidents is remarkably reduced, even accidents are avoided, and the construction cost can be correspondingly reduced. However, the double-drum winching machine in the prior art generally adopts a single bracket to support the drum shaft at one end of the two drums far away from the transfer case, specifically: a support is arranged on the base and between the end parts corresponding to the two winding drums, and the shaft heads of the winding drum shafts at one ends of the two winding drums far away from the transfer case are respectively supported at the two ends of the support in a cantilever mode, so that the stress of the support is unstable, the winding drum shafts can deform and even break under the gravity state, and the normal use of the winching machine is influenced. In view of the need for improvement, the solution described below is made in this context.

Disclosure of Invention

The task of the utility model is to provide a help playing good supporting role, being favorable to conveniently removing when the reel is examined and protected with the supporting connection relation of reel, being of value to the reel axle supporting arrangement of the hank mill of the convenience of embodying the concise nature of structure and installation to the reel axle.

The utility model discloses a task is accomplished like this, the reel axle supporting arrangement of a grinder, the grinder include a frame, a transfer case, a front drum and a back reel, the transfer case sets up on the frame, front drum and back reel set up and respectively connected with the transfer case transmission with the front drum axle right spindle nose of front drum and the back drum axle right spindle nose of back reel in the state that correspond each other from front to back; the winding drum shaft supporting device comprises a winding drum shaft head supporting seat and a bearing seat supporting mechanism, a front winding drum left shaft head of a front winding drum and a rear winding drum left shaft head of a rear winding drum are rotatably supported on the winding drum shaft head supporting seat, the winding drum shaft head supporting seat is supported on the bearing seat supporting mechanism, and the bearing seat supporting mechanism is arranged at the left end of the machine seat.

In a specific embodiment of the present invention, the spool head support comprises a front chuck, a rear chuck, a bearing coupling plate, a front bearing, a rear bearing, a front bearing cap and a rear bearing cap, the front bearing is disposed on the front spool left head, the rear bearing is disposed on the rear spool left head, the front end of the bearing coupling plate is sleeved on the front bearing, the rear end is sleeved on the rear bearing, the front chuck is sleeved on the right end of the front bearing at a position corresponding to the right side of the front end of the bearing coupling plate, the rear chuck is sleeved on the right end of the rear bearing at a position corresponding to the right side of the rear end of the bearing coupling plate, the front bearing cap corresponds to the left side of the front end of the bearing coupling plate and is fixedly connected with the front chuck through the bearing coupling plate, the left end of the front bearing protrudes into the bearing cavity of the front bearing cap, the rear bearing cap corresponds to the left side of the rear end of the bearing coupling plate and is fixedly connected with the rear chuck through the bearing coupling plate, the left end of the rear bearing extends into a rear bearing cover bearing supporting cavity of the rear bearing cover; the left sides of the front bearing cover and the rear bearing cover are supported on the bearing seat supporting mechanism arranged at the left end of the machine base.

In another specific embodiment of the present invention, a front bearing cap support base extends leftward from a left central position of the front bearing cap, and a rear bearing cap support base extends leftward from a left central position of the rear bearing cap, the front bearing cap support base and the rear bearing cap support base being supported on the bearing base support mechanism provided at the left end of the housing.

In another specific embodiment of the present invention, the front bearing and the rear bearing are self-lubricating bearings.

In a further specific embodiment of the present invention, the bearing seat support mechanism includes a front bearing cap support device, a rear bearing cap support device and a common hinge seat, the front bearing cap support device is disposed between the front end of the left end of the base and the front end of the common hinge seat, the rear bearing cap support device is disposed between the rear end of the left end of the base and the rear end of the common hinge seat, the common hinge seat is disposed at the center of the left end edge of the base, the front bearing cap support seat is supported on the front bearing cap support device, and the rear bearing cap support seat is supported on the rear bearing cap support device.

In yet another embodiment of the present invention, the front bearing cap supporting device includes a support arm first hinge base i, a first support arm i, a second support arm ii and a first support arm connecting base i, the support arm first hinge base i is fixed in front of the left end edge portion of the housing, one end of the first support arm i is hinged to the support arm first hinge base i through a first support arm hinge pin i, and the other end of the first support arm i is configured as a first support arm free end, one end of the second support arm ii is hinged to the front end of the common hinge base disposed at a central position of the left end edge portion of the housing through a second support arm hinge pin ii, and the other end of the second support arm ii is configured as a second support arm free end, one end of the first support arm connecting base i is hinged to the first support arm free end through a first support arm connecting base pin i, the other end of the first support arm is a free end and is provided with a first locking nut I, a first free end probing cavity I is formed in the middle of a first support arm connecting seat I, the tail end of the free end of the first support arm and the tail end of the free end of the second support arm probe into or withdraw from the first free end probing cavity I, a first support arm cavity I is formed on one side, facing the second support arm II, of the first support arm I and at a position corresponding to the front bearing cover supporting seat, a second support arm cavity II is formed on one side, facing the first support arm I, of the second support arm II and at a position corresponding to the front bearing cover supporting seat, and the first support arm cavity I and the second support arm cavity II are matched with or disengaged from the front bearing cover supporting seat; the rear bearing cover supporting device comprises a supporting arm second hinging seat II, a third supporting arm III, a fourth supporting arm IV and a second supporting arm connecting seat II, wherein the supporting arm second hinging seat II is fixed behind the edge part of the left end of the machine seat, one end of the third supporting arm III is hinged with the supporting arm second hinging seat II through a third supporting arm hinging pin shaft III, the other end of the third supporting arm III is a third supporting arm free end, one end of the fourth supporting arm IV is hinged with the rear end of the public hinging seat arranged in the middle of the edge part of the left end of the machine seat through a fourth supporting arm hinging pin shaft IV, the other end of the fourth supporting arm IV is a fourth supporting arm free end, one end of the second supporting arm connecting seat II is hinged with the third supporting arm free end through a second supporting arm connecting seat pin shaft II, the other end is a free end and is provided with a second locking nut II, a second free end probing cavity II is formed in the middle of the second support arm connecting seat II, the tail end of the free end of the third support arm and the tail end of the free end of the fourth support arm probe into or withdraw from the second free end probing cavity II, a third support arm concave cavity III is formed on one side, facing the fourth support arm IV, of the third support arm and in a position corresponding to the rear bearing cover supporting seat, a fourth support arm concave cavity IV is formed on one side, facing the third support arm III, of the fourth support arm and in a position corresponding to the rear bearing cover supporting seat, and the third support arm concave cavity III and the fourth support arm concave cavity IV are matched with or disengaged from the rear bearing cover supporting seat.

In a more specific embodiment of the present invention, a first free end probing cavity embedded pin i is formed at the end of the free end of the second support arm ii, and a second free end probing cavity embedded pin ii is formed at the end of the free end of the fourth support arm iv; when the free end of the first support arm I and the free end of the second support arm II are closed oppositely, the tail end of the free end of the first support arm and the first free end probing cavity embedded pin I formed at the tail end of the second support arm II probe into the first free end probing cavity I together; when the free end of the third support arm III and the free end of the fourth support arm IV are folded oppositely, the tail end of the free end of the third support arm and the second free end probing cavity embedded pin II formed at the tail end of the fourth support arm IV probe into the second free end probing cavity II together.

In yet another specific embodiment of the present invention, the common hinge base is hinged to the middle position of the left end edge of the base through a common hinge base hinge.

In yet a more specific embodiment of the present invention, a front drum traction rope channel is formed on the surface of the front drum; and a rear reel traction rope channel is formed on the surface of the rear reel.

In yet another specific embodiment of the present invention, the front spool rope channel corresponds to the rear spool rope channel.

The technical scheme provided by the utility model the technical effect lie in: because the winding drum shaft head supporting seat for supporting the front winding drum left shaft head of the front winding drum and the rear winding drum shaft head of the rear winding drum is added, and the bearing seat supporting mechanism for supporting the winding drum shaft head supporting seat is added, the left end of the front winding drum and the left end of the rear winding drum can be well supported; in the operation of inspecting and protecting the left and right reels, the bearing seat supporting mechanism can temporarily release the support of the reel shaft head supporting seat and the connection between the reel shaft head supporting seat and the left shaft heads of the front and rear reels; the whole structure is simple, so the utility model is convenient to manufacture and use.

Drawings

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

Detailed Description

In order to make the technical essence and advantages of the present invention more clear, the applicant below describes in detail the embodiments, but the description of the embodiments is not a limitation of the present invention, and any equivalent changes made according to the inventive concept, which are only formal and not essential, should be considered as the technical scope of the present invention.

In the following description, all the concepts related to the directions or orientations of up, down, left, right, front and rear are directed to the position state of fig. 1, and thus, should not be interpreted as a limitation to the technical solution provided by the present invention.

Referring to fig. 1, a machine base 1, a transfer case 2, a front drum 3 and a rear drum 4 of a winching machine structural system are shown, the transfer case 2 is arranged on the machine base 1, the front drum 3 and the rear drum 4 are arranged in a state of corresponding to each other in the front and rear direction, and a front drum shaft right spindle head 31 of the front drum 3 and a rear drum shaft right spindle head 41 of the rear drum 4 are respectively in transmission connection with the transfer case 2.

The transfer case 2 is driven by a reduction gearbox, that is, the transfer case 2 is in transmission connection with the reduction gearbox on the right side, which is not shown in the figure, and the reduction gearbox is driven by power such as a gasoline engine, which is not shown in the figure 1. Under the work of the gasoline engine, the reduction gearbox is driven, the reduction gearbox is used for reducing speed and driving the transfer case 2, and the transfer case 2 is used for driving the front winding drum 3 and the rear winding drum 4 at the same time. Specifically, the transfer case 2 simultaneously drives the front and rear spool shaft

right stub shafts

31, 41, thereby rotating the front and

rear spools

3, 4.

As the technical scheme provided by the utility model: a spool shaft head support 5 and a bearing support 6 showing the structural system of the spool shaft support device, the front spool left shaft head 32 of the front spool 3 and the rear spool left shaft head 42 of the rear spool 4 are rotatably supported on the spool shaft head support 5, and the spool shaft head support 5 is supported on the bearing support 6, and the bearing support 6 is provided at the left end of the aforementioned frame 1.

With reference to fig. 1, the spool shaft head support 5 includes a front chuck 51, a rear chuck 52, a bearing coupling plate 53, a front bearing 54, a rear bearing 55, a front bearing cover 56 and a rear bearing cover 57, the front bearing 54 is disposed on the front spool left shaft head 32, the rear bearing 55 is disposed on the rear spool left shaft head 42, a front end of the bearing coupling plate 53 is sleeved on the front bearing 54, a rear end is sleeved on the rear bearing 55, the front chuck 51 is sleeved on a right end of the front bearing 54 at a position corresponding to a right side of the front end of the bearing coupling plate 53, the rear chuck 52 is sleeved on a right end of the rear bearing 55 at a position corresponding to a right side of the rear end of the bearing coupling plate 53, the front bearing cover 56 is corresponding to a left side of the front end of the bearing coupling plate 53 and is fixedly connected to the front chuck 51 via the bearing coupling plate 53, a left end of the front bearing 54 protrudes into a front bearing cover bearing support cavity 561 of the front bearing cover 56, a rear bearing cap 57 corresponding to the left end of the rear end of the bearing coupling plate 53 and fixedly connected to the rear chuck 52 via the bearing coupling plate 53, the left end of the rear bearing 55 projecting into a rear bearing cap bearing support chamber 571 of the rear bearing cap 57; the left sides of the front bearing cover 56 and the rear bearing cover 57 are supported by the bearing seat support mechanism 6 provided at the left end of the housing 1.

As shown in fig. 1, front chuck screw holes 511 are formed in the front chuck 51 at intervals around the front chuck 51, front coupling plate front coupling holes 531 are formed in the front end of the bearing coupling plate 53 at positions corresponding to the front chuck screw holes 511, front bearing cover fixing screws 563 are provided in the front bearing cover 56 at positions corresponding to the coupling plate front coupling holes 531, and the front bearing 54 is screwed into the front chuck screw holes 511 through the coupling plate front coupling holes 531, so that the front bearing 54 is well defined to secure the moving effect of the front spool left spindle head 32. Since the rear chuck 52, the rear end of the bearing coupling plate 53 and the rear bearing cap 57 are coupled and fixed in the same manner as described above, detailed description thereof will be omitted.

As shown in fig. 1, a front bearing cover receiving base 562 extends leftward from the left center of the front bearing cover 56, a rear bearing cover receiving base 572 extends leftward from the left center of the rear bearing cover 57, and the front bearing cover receiving base 562 and the rear bearing cover receiving base 572 are supported by the bearing support mechanism 6 provided at the left end of the housing 1.

In the present embodiment, the aforementioned front bearing 54 and rear bearing 55 are self-lubricating bearings.

Continuing to refer to fig. 1, the bearing block support mechanism 6 includes a front bearing block support 61, a rear bearing block support 62 and a common hinge base 63, the front bearing block support 61 is disposed between the front of the left end of the housing 1 and the front end of the common hinge base 63, the rear bearing block support 62 is disposed between the rear of the left end of the housing 1 and the rear end of the common hinge base 63, the common hinge base 63 is disposed at a central position of the left end edge portion of the housing 1, the front bearing block 562 is supported on the front bearing block support 61, and the rear bearing block 572 is supported on the rear bearing block support 62.

The front bearing cover supporting device 61 comprises a supporting arm first hinge seat i 611, a first supporting arm i 612, a second supporting arm ii 613 and a first supporting arm connecting seat i 614, wherein the supporting arm first hinge seat i 611 is fixed in front of the left end edge of the base 1 in a welding manner, one end of the first supporting arm i 612 is hinged with the supporting arm first hinge seat i 611 through a first supporting arm hinge pin i 6121, the other end of the first supporting arm i 612 forms a first supporting arm free end, one end of the second supporting arm ii 613 is hinged with the front end of the common hinge seat 63 arranged in the middle of the left end edge of the base 1 through a second supporting arm hinge pin ii 6131, the other end of the second supporting arm ii 613 forms a second supporting arm free end, one end of the first supporting arm connecting seat i 614 is hinged with the first supporting arm free end through a first supporting arm connecting seat pin i 6141, the other end of the first support arm is a free end and is provided with a first locking nut I6142, the middle part of a first support arm connecting seat I614 is provided with a first free end extending cavity I6143, the tail end of the free end of the first support arm and the tail end of the free end of the second support arm extend into or withdraw from the first free end extending cavity I6143, a first support arm concave cavity I6122 is formed on one side, facing the second support arm I613, of the first support arm and at a position corresponding to the front bearing cover supporting seat 562, a second support arm concave cavity II 6132 is formed on one side, facing the first support arm I612, of the second support arm and at a position corresponding to the front bearing cover supporting seat 562, and the first support arm concave cavity I6122 and the second support arm concave cavity II 6132 are matched with or disengaged from the front bearing cover supporting seat 562; the rear bearing cap supporting device 62 comprises a supporting arm second hinge base ii 621, a third supporting arm iii 622, a fourth supporting arm iv 623 and a second supporting arm connecting base ii 624, the supporting arm second hinge base ii 621 is fixed behind the left end edge of the base 1, one end of the third supporting arm iii 622 is hinged to the supporting arm second hinge base ii 621 through a third supporting arm hinge pin iii 6221, while the other end of the third supporting arm iii 622 constitutes a third supporting arm free end, one end of the fourth supporting arm iv 623 is hinged to the rear end of the common hinge base 63 arranged in the middle of the left end edge of the base 1 through a fourth supporting arm hinge pin iv 6231, while the other end of the fourth supporting arm iv 623 constitutes a fourth supporting arm free end, one end of the second supporting arm connecting base ii 624 is hinged to the third supporting arm free end through a second supporting arm connecting base ii 6241, the other end is a free end and is provided with a second locking nut II 6242, a second free end probing cavity II 6243 is formed in the middle of the second support arm connecting seat II 624, the tail end of the free end of the third support arm and the tail end of the free end of the fourth support arm probe into or withdraw from the second free end probing cavity II 6243, a third support arm concave cavity III 6222 is formed on one side of the third support arm III 622 facing the fourth support arm IV 623 and at a position corresponding to the rear bearing cover bearing seat 572, a fourth support arm concave cavity IV 6232 is formed on one side of the fourth support arm IV 623 facing the third support arm III 622 and also at a position corresponding to the rear bearing cover bearing seat 572, and the third support arm concave cavity III 6222 and the fourth support arm concave cavity IV 6232 are matched with or disengaged from the rear bearing cover bearing seat 572.

As shown in fig. 1, a first free end insertion cavity insert i 6133 is formed at the end of the free end of the second support arm ii 613, and a second free end insertion cavity insert ii 6233 is formed at the end of the free end of the fourth support arm iv 623; when the free end of the first support arm i 612 and the free end of the second support arm ii 613 are closed in opposite directions, the end of the free end of the first support arm and the first free end probing cavity insert i 6133 formed at the end of the second support arm ii 613 probe into the first free end probing cavity i 6143 together; when the free end of the third support arm iii 622 and the free end of the fourth support arm iv 623 are folded toward each other, the end of the free end of the third support arm and the second free end probing cavity embedding foot ii 6233 formed at the end of the fourth support arm iv 623 probe into the second free end probing cavity ii 6243.

As can be seen from the illustration of fig. 1 and the above description, when the free end of the first support arm i 612 and the free end of the second support arm ii 613 are closed toward each other, the end of the free end of the first support arm and the first free end probing cavity insert i 6133 formed at the end of the second support arm ii 613 probe into the first free end probing cavity i 6143; when the free end of the third support arm III 622 and the free end of the fourth support arm IV 623 are folded towards each other, the end of the free end of the third support arm and the second free end probing cavity embedding foot II 6233 formed at the end of the fourth support arm IV 623 probe into the second free end probing cavity II 6243.

In the first support arm i 612 and the second support arm ii 613, the first support arm i 612 and the second support arm ii 613 are locked by the first support arm connecting seat i 614, and the first locking nut i 6142 is tightened, so that the front bearing cap support base 562 is supported by the first support arm cavity i 6122 and the second support arm cavity ii 6132 together, and in the case of inspection or the like, the first support arm i 612 and the second support arm ii 613 are separated and in the state shown in the figure according to the reverse process. Since the third support arm iii 622 and the fourth support arm iv 623 function in the same manner as described above, the description thereof will not be repeated.

As shown in fig. 1, the common hinge base 63 is hinged to the central position of the left end edge of the base 1 through a common hinge base hinge 631; a front reel traction rope channel 33 is formed on the surface of the front reel 3; a rear reel traction rope groove 43 is formed on the surface of the rear reel 4. The front spool cable channel 33 corresponds to the rear spool cable channel 43.

Since the specific use of a grinder belongs to the prior art and reference can be made to the patent literature mentioned by the applicant in the above background section, the applicant is not further described.

To sum up, the technical solution provided by the present invention remedies the defects in the prior art, successfully completes the invention task, and faithfully embodies the technical effects mentioned in the above technical effect column by the applicant.

Claims

1. A winch shaft supporting device comprises a base (1), a transfer case (2), a front winding drum (3) and a rear winding drum (4), wherein the transfer case (2) is arranged on the base (1), the front winding drum (3) and the rear winding drum (4) are arranged in a front-back corresponding state, and a front winding drum shaft right shaft head (31) of the front winding drum (3) and a rear winding drum shaft right shaft head (41) of the rear winding drum (4) are in transmission connection with the transfer case (2); the winding drum shaft supporting device is characterized by comprising a winding drum shaft head supporting seat (5) and a supporting shaft seat supporting mechanism (6), wherein a front winding drum left shaft head (32) of a front winding drum (3) and a rear winding drum left shaft head (42) of a rear winding drum (4) are rotatably supported on the winding drum shaft head supporting seat (5), the winding drum shaft head supporting seat (5) is supported on the bearing seat supporting mechanism (6), and the bearing seat supporting mechanism (6) is arranged at the left end of the machine seat (1).

2. The grinding mill spool support device according to claim 1, wherein the spool shaft head support base (5) comprises a front chuck (51), a rear chuck (52), a bearing coupling plate (53), a front bearing (54), a rear bearing (55), a front bearing cover (56), and a rear bearing cover (57), the front bearing (54) is disposed on the front spool left shaft head (32), the rear bearing (55) is disposed on the rear spool left shaft head (42), a front end of the bearing coupling plate (53) is fitted over the front bearing (54), and a rear end is fitted over the rear bearing (55), the front chuck (51) is fitted over a right end of the front bearing (54) at a position corresponding to a right side of the front end of the bearing coupling plate (53), the rear chuck (52) is fitted over a right end of the rear bearing (55) at a position corresponding to a right side of the rear end of the bearing coupling plate (53), and the front bearing cover (56) corresponds to a left side of the front end of the bearing coupling plate (53) and is interposed between the bearing coupling plate (53) 53) The left end of the front bearing (54) is inserted into a front bearing cover bearing supporting cavity (561) of a front bearing cover (56), the rear bearing cover (57) corresponds to the left side of the rear end of the bearing connecting plate (53) and is fixedly connected with the rear chuck (52) through the bearing connecting plate (53), and the left end of the rear bearing (55) is inserted into a rear bearing cover bearing supporting cavity (571) of the rear bearing cover (57); the left sides of the front bearing cover (56) and the rear bearing cover (57) are supported on the bearing seat supporting mechanism (6) arranged at the left end of the machine base (1).

3. The bearing arrangement of the spool shaft of the grinding mill according to claim 2, characterized in that a front bearing cover bearing housing (562) extends leftwardly at a left-side center position of the front bearing cover (56), and a rear bearing cover bearing housing (572) extends leftwardly at a left-side center position of the rear bearing cover (57), the front bearing cover bearing housing (562) and the rear bearing cover bearing housing (572) being supported on the bearing housing support mechanism (6) provided at the left end of the housing (1).

4. The grinding mill spool support arrangement of claim 2, characterized in that the front bearing (54) and the rear bearing (55) are self-lubricating bearings.

5. A capstan-bearing arrangement for a grinding machine, according to claim 3, characterized in that the bearing-housing support means (6) comprises a front bearing-housing support means (61), a rear bearing-housing support means (62) and a common hinge-housing (63), the front bearing-housing support means (61) being arranged between the front of the left end of the housing (1) and the front end of the common hinge-housing (63), the rear bearing-housing support means (62) being arranged between the rear of the left end of the housing (1) and the rear end of the common hinge-housing (63), the common hinge-housing (63) being arranged centrally in the edge of the left end of the housing (1), the front bearing-housing support means (562) being supported on the front bearing-housing support means (61), and the rear bearing-housing support means (572) being supported on the rear bearing-housing support means (62).

6. The drum shaft supporting device of the grinder of claim 5, wherein the front bearing cap supporting device (61) comprises a first hinge base I (611) of the supporting arm, a first supporting arm I (612), a second supporting arm II (613) and a first connecting base I (614) of the supporting arm, the first hinge base I (611) of the supporting arm is fixed in front of the left end edge portion of the stand (1), one end of the first supporting arm I (612) is hinged with the first hinge base I (611) of the supporting arm through a first supporting arm hinge pin I (6121), the other end of the first supporting arm I (612) is formed as a free end of the first supporting arm, one end of the second supporting arm II (613) is hinged with the front end of the common base (63) provided at the central position of the left end edge portion of the stand (1) through a second supporting arm hinge pin II (6131), the other end of the second support arm II (613) is a second support arm free end, one end of a first support arm connecting seat I (614) is hinged with the first support arm free end through a first support arm connecting seat pin shaft I (6141), the other end of the first support arm connecting seat I (614) is a free end and is provided with a first locking nut I (6142), a first free end probing cavity I (6143) is formed in the middle of the first support arm connecting seat I (614), the tail end of the first support arm free end and the tail end of the second support arm free end probe into or out of the first free end probing cavity I (6143), a first support arm concave cavity I (6122) is formed on one side of the first support arm I (612) facing the second support arm II (613) and at a position corresponding to the front bearing cover bearing seat (562), and a second support arm II (613) facing the first support arm I (612) and is also formed on one side of the second support arm II (613) facing the first support arm I (612) and at a position corresponding to the front bearing cover bearing seat (562) A second supporting arm concave cavity II (6132), the first supporting arm concave cavity I (6122) and the second supporting arm concave cavity II (6132) are matched with or not matched with the front bearing cover supporting seat (562); the rear bearing cover supporting device (62) comprises a supporting arm second hinging seat II (621), a third supporting arm III (622), a fourth supporting arm IV (623) and a second supporting arm connecting seat II (624), the supporting arm second hinging seat II (621) is fixed at the rear part of the edge part of the left end of the machine base (1), one end of the third supporting arm III (622) is hinged with the supporting arm second hinging seat II (621) through a third supporting arm hinging pin shaft III (6221), the other end of the third supporting arm III (622) is formed into a third supporting arm free end, one end of the fourth supporting arm IV (623) is hinged with the rear end of the common hinging seat (63) arranged at the central position of the edge part of the left end of the machine base (1) through a fourth supporting arm hinging pin shaft IV (6231), and the other end of the fourth supporting arm IV (623) is formed into a fourth supporting arm free end, one end of the second support arm connecting seat II (624) is hinged with the free end of the third support arm through a second support arm connecting seat pin shaft II (6241), the other end is formed into a free end and is provided with a second locking nut II (6242), a second free end probing cavity II (6243) is formed in the middle of the second support arm connecting seat II (624), the tail end of the free end of the third support arm and the tail end of the free end of the fourth support arm probe into or out of the second free end probing cavity II (6243), a third support arm concave cavity III (6222) is formed on one side of the third support arm III (622) facing the fourth support arm IV (623) and at a position corresponding to the rear bearing cover bearing seat (572), a fourth support arm concave cavity IV (6232) is formed on one side of the fourth support arm IV (623) facing the third support arm III (622) and also at a position corresponding to the rear bearing cover bearing seat (572), the third arm cavity III (6222) and the fourth arm cavity IV (6232) are engaged with or disengaged from the rear bearing cover supporting seat (572).

7. The bearing arrangement for the reel shaft of a grinding winch according to claim 6, characterized in that a first free end cavity-entering insert i (6133) is formed at the end of the free end of the second support arm of said second support arm ii (613), and a second free end cavity-entering insert ii (6233) is formed at the end of the free end of the fourth support arm of said fourth support arm iv (623); when the free end of the first support arm I (612) and the free end of the second support arm II (613) are opposite to each other and can be closed, the tail end of the free end of the first support arm and the first free end probing cavity embedded pin I (6133) formed at the tail end of the second support arm II (613) probe into the first free end probing cavity I (6143) together; when the free end of the third support arm III (622) and the free end of the fourth support arm IV (623) are folded oppositely, the tail end of the free end of the third support arm and the second free end probing cavity embedding foot II (6233) formed at the tail end of the fourth support arm IV (623) probe into the second free end probing cavity II (6243) together.

8. A device for supporting the drum shaft of an attrition mill as claimed in claim 7, characterized in that said common hinge seat (63) is hinged in a central position of the left end edge portion of said frame (1) by means of a common hinge seat hinge (631).

9. A winch drum shaft support arrangement according to claim 1, characterized in that a front drum traction rope channel (33) is formed on the surface of the front drum (3); a rear drum traction rope channel (43) is formed on the surface of the rear drum (4).

10. The spool support arrangement of a grinder of claim 9, wherein the front spool pull rope channel (33) is corresponding to the rear spool pull rope channel (43).