CN200968361Y

CN200968361Y - Position shifted gear coupling

Info

Publication number: CN200968361Y
Application number: CN 200620111731
Authority: CN
Inventors: 郭洪荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-11-17
Filing date: 2006-11-17
Publication date: 2007-10-31
Anticipated expiration: 2016-11-17

Abstract

The utility model relates to a coupling device used in the transmission mechanism of different machines, in particular to a modified gear coupling. The coupling device comprises a first outer sleeve with inner gears, a second outer sleeve with inner gears, an end cover, a cover board, and an inner sleeve with outer gears. Gears on the first and second outer sleeves with inner gears and the inner sleeve with outer gears are modified gears. The modified gears on the first & second outer sleeves mesh with those on the inner sleeve. Mutually chimeric jaws are provided on the fitting end surfaces of the first and second outer sleeves. Moreover, a plurality of joining holes is provided at the fitting ends of the two outer sleeves. After the jaws are installed, the first & second outer sleeves are connected through the joining holes with bolts, spring washers and nuts. The utility model is provided with the simple structure, great loading capacity, and long usable life. Moreover, the replacement is easy.

Description

The modified gear coupling

One, technical field

The utility model relates to a kind of coupling arrangement that is used for the driving mechanism of all kinds of machineries, the axle in especially a kind of driving mechanism with spool between the coupling that connects.

Two, background technique

In the driving mechanism of metallurgical machinery, mining machinery, cement machinery, building machinery, chemical machinery, textile manufacturing machine, light industry and machinery, universal machine etc., connects a kind of gear coupling of most employing between the axle of transmission and the axle.Gear coupling has only standard straight gear coupling and crown gear coupling at present, they by about two overcoats that have an internal tooth and the interior cover that has an external tooth form, two overcoats that have internal tooth are connected into one, two interior covers that have external tooth connect with diaxon with key respectively, rely on the inside and outside external tooth that puts, internal tooth to mesh with transmitting torque.When standard straight gear coupling such as coupled diaxon angular displacement were big, the gear teeth flank of tooth that is meshed is local contact at the tooth two ends, and contact strength of tooth surface, antiscuffing capacity and wear resistance are relatively poor, reduce the bearing capacity and the working life of coupling; Though crown gear coupling has bigger compensation ability and bearing capacity than standard straight gear coupling, and can improve working life, its processed complex, manufacturing expense is higher; Two of standard straight gear coupling and crown gear coupling has the connection between the overcoat of internal tooth, or what all adopt connecting between the overcoat that has an internal tooth and the rigidity shaft coupling body is the articulation hole Bolt Connection, two have the overcoat of internal tooth or have the overcoat of internal tooth and the bolt hole of rigidity shaft coupling body all is align reamings, therefore interchangeability is relatively poor, in case running into the half coupling (one has the overcoat of internal tooth, the interior cover that has external tooth or rigidity shaft coupling body) of coupling damages, just necessary complete replacing, change chronicly, incur loss through delay the production time.

Three, summary of the invention

The purpose of this utility model is to provide a kind of modified gear coupling, and it is simple in structure, and bearing capacity is strong, long service life, and interchangeability is good, is easy to change.

The utility model adopts such technological scheme: a kind of modified gear coupling, comprise the overcoat one that has internal tooth, the overcoat two that has internal tooth, end cap, cover plate, the interior cover that has external tooth, it is characterized in that the aforesaid overcoat one that has internal tooth, have the overcoat two of internal tooth and have external tooth in the gear that puts be modified gear, the overcoat one that has internal tooth, displacement tooth on two with have external tooth in the displacement tooth engagement that puts, the overcoat one that is having internal tooth, the counterface that has the overcoat two of internal tooth is provided with chimeric tooth embedding mutually, also be provided with a plurality of connecting hole at these two the overcoat abutting ends that have internal tooth, the overcoat one that has an internal tooth and the overcoat two that has internal tooth after the tooth embedding is chimeric by connecting hole by bolt, spring washer and nut are fixedly connected.

The modified gear coupling that provides by the utility model, by about two overcoats that have an internal tooth and the interior cover that has an external tooth form, two interior covers that have external tooth connect with diaxon with key respectively, two overcoats that have internal tooth are connected into one by plain bolt and tooth embedding, rely on overcoat, in the internal tooth that puts, external tooth engagement transmitting torque, its internal tooth, external tooth all adopts the displacement tooth, use modified gear and can avoid undercut, improve contact strength of tooth surface and teeth bending strength, improve the antiscuffing capacity and the wear-resisting property of the flank of tooth, the bearing capacity and the working life of gear are improved, thereby reach the bearing capacity and the working life of improving coupling; Because two overcoat that has internal tooth connects by plain bolt and tooth embedding, the effect of tooth embedding is to guarantee that two overcoats that have internal tooth can not have relative movement, and interchangeability is good, in case running into the half coupling of coupling damages, just can only change the overcoat that has internal tooth of damage, the interior cover that has external tooth or rigidity shaft coupling body, raw material have been saved, reduce user cost, and shortened the time of changing, bolt only plays anastomosis, do not bear shearing force, do not need to prepare specially articulation hole bolt spare part.The utility model is simple in structure, and bearing capacity is strong, long service life, and interchangeability is good, is easy to change.

Four, description of drawings

The utility model has following accompanying drawing:

Fig. 1 is an an embodiment's of the present utility model structural representation;

Fig. 2 is the structural representation that has the overcoat one of internal tooth;

Fig. 3 is the right elevation of Fig. 2;

Fig. 4 is the end cap schematic representation;

Fig. 5 is the cover plate schematic representation

Fig. 6 is the structural representation that has the interior cover of external tooth;

Fig. 7 is the left view of Fig. 6;

Fig. 8 is the left view that has the overcoat two of internal tooth among Fig. 1;

Fig. 9 is the A-A view of Fig. 8

Figure 10 is another an embodiment's of the present utility model structural representation;

Figure 11 is the structural representation of the rigidity shaft coupling body among Figure 10;

Figure 12 is the right elevation of Figure 11.

Five, embodiment

Embodiment of the present utility model is described with reference to the accompanying drawings.As Fig. 1-shown in Figure 9, a kind of modified gear coupling, comprise the overcoat 1 that has internal tooth, the overcoat 2 11 that has internal tooth, end cap 2, cover plate 3, the interior cover 5 that has external tooth, the aforesaid overcoat 1 that has internal tooth, the gear that has the overcoat 2 11 of internal tooth and have on the interior cover 5 of external tooth is a modified gear, the overcoat one that has internal tooth, displacement tooth on two and the displacement tooth engagement that has on the interior cover 5 of external tooth, the overcoat 1 that is having internal tooth, the counterface that has the overcoat 2 11 of internal tooth is provided with chimeric tooth embedding 14 mutually, at these two overcoats 1 that have internal tooth, 11 abutting ends also are provided with a plurality of connecting hole 15, and the overcoat 1 that has internal tooth passes through connecting hole 14 by bolt 8 with the overcoat 2 11 that has internal tooth through tooth embedding 14 chimeric backs, spring washer 9 and nut 10 are fixedly connected.End cap 2, seal ring 4 are pushed down through cover plate 3, connect firmly end at the overcoat 1,11 that has internal tooth by bolt 6, spring washer 7.Two interior covers 5 that have external tooth connect with two coupled axles with key respectively.

In another embodiment shown in Figure 10-Tu `12, the aforesaid overcoat one that has internal tooth adopts rigidity shaft coupling body 13, this rigidity shaft coupling body is provided with chimeric tooth embedding 14 mutually with the counterface that has the overcoat 2 11 of internal tooth, the abutting end of rigidity shaft coupling body 13 also is provided with a plurality of connecting hole 15 that connect with the overcoat 2 11 that has internal tooth, rigidity shaft coupling body 13 and the overcoat 2 11 that has internal tooth are fixedly connected by bolt 8, spring washer 9 and nut 10 by connecting hole 14 after tooth embedding 14 is chimeric, and there is through hole at the center of rigidity shaft coupling body 13.Have the displacement tooth engagement on displacement tooth and the interior cover 5 that has external tooth on the overcoat 2 11 of internal tooth.End cap 2, seal ring 4 are pushed down by bolt 6, spring washer 7 through cover plate 3 and are connected firmly end at the overcoat 11 that has internal tooth.Rigidity shaft coupling body 13 connects with two coupled axles with key respectively with the interior cover 5 that has external tooth.

The aforesaid overcoat 1 that has an internal tooth, have the overcoat 2 11 of internal tooth and the modified gear that has on the interior cover 5 of external tooth adopts high displacement straight-tooth gear, its modification coefficient is 0.5-0.65.Modified gear is a kind of nonstandard gear.When adding work gear, press V with the rack type cutter _Cutter(r, ω are respectively reference radius, the angular velocity of wheel blank, V to=r ω _CutterThe speed that moves for cutter) relation makes cutter and wheel blank make rolling movement, if till radially feed made the standard pitch circle of the center line of cutter and wheel blank tangent, the gear that then processes was exactly a master gear.If when cutting finishes, the center line of cutter is not tangent with the standard pitch circle of wheel blank, and the gear that side processes is called X-gear, is called for short modified gear.During the processing modified gear, the distance X that the relative wheel blank of cutter moves radially is called addendum modification, represents with the product of a coefficient x and modulus m usually, i.e. X=xm.Coefficient x is called modification coefficient.When usually regulation cutter center line left the wheel blank standard pitch circle, modification coefficient be on the occasion of (addendum modification X also be on the occasion of), i.e. x＞0, and this modified gear is called the normal shift gear; Otherwise, during cutter center line shift-in wheel blank standard pitch circle, promptly cutting mutually with standard pitch circle, modification coefficient x is negative value (addendum modification X also for negative value), i.e. x＜0, this modified gear is called the negative addendum modification gear.Gear is after displacement, its profile of tooth and standard straight gear belong to an involute together, just can avoid undercut by selecting suitable modification coefficient, improve contact strength of tooth surface and teeth bending strength, improve the antiscuffing capacity and the wear-resisting property of the flank of tooth, improve the bearing capacity and the working life of gear, thus the bearing capacity and the working life of having improved coupling.Radially also be respectively equipped with a lubricating cup 12 at aforesaid middle part and the abutting end that has the overcoat 2 11 of internal tooth.

Claims

1, a kind of modified gear coupling, comprise the overcoat one (1) that has internal tooth, the overcoat two (11) that has internal tooth, end cap (2), cover plate (3), the interior cover (5) that has external tooth, it is characterized in that the aforesaid overcoat one (1) that has internal tooth, the gear that has the overcoat two (11) of internal tooth and have on the interior cover (5) of external tooth is a modified gear, the overcoat one that has internal tooth, displacement tooth on two and the displacement tooth engagement that has on the interior cover (5) of external tooth, the overcoat one (1) that is having internal tooth, the counterface that has the overcoat two (11) of internal tooth is provided with chimeric tooth embedding (14) mutually, at these two overcoats (1 that have internal tooth, 11) abutting end also is provided with a plurality of connecting hole (15), and the overcoat one (1) that has internal tooth passes through connecting hole (14) by bolt (8) with the overcoat two (11) that has internal tooth after tooth embedding (14) is chimeric, spring washer (9) and nut (10) are fixedly connected.

2, by the described modified gear coupling of claim 1, it is characterized in that the aforesaid overcoat one that has internal tooth adopts rigidity shaft coupling body (13), this rigidity shaft coupling body is provided with chimeric tooth embedding (14) mutually with the counterface that has the overcoat two (11) of internal tooth, the abutting end of rigidity shaft coupling body (13) also is provided with a plurality of connecting hole (15) that connect with the overcoat two (11) that has internal tooth, rigidity shaft coupling body (13) passes through connecting hole (14) by bolt (8) with the overcoat two (11) that has internal tooth after tooth embedding (14) is chimeric, spring washer (9) and nut (10) are fixedly connected, and there is through hole at the center of rigidity shaft coupling body (13).

3, by claim 1 or 2 described modified gear coupling, it is characterized in that the aforesaid overcoat one (1) that has an internal tooth, have the overcoat two (11) of internal tooth and the modified gear that has on the interior cover (5) of external tooth adopts high displacement straight-tooth gear, its modification coefficient is 0.5-0.65.

4,, it is characterized in that radially also being respectively equipped with a lubricating cup (12) at the middle part of the aforesaid overcoat two (11) that has an internal tooth and abutting end by claim 1 or 2 described modified gear coupling.