CN110630664A

CN110630664A - Locking mechanism and gear box

Info

Publication number: CN110630664A
Application number: CN201911027738.6A
Authority: CN
Inventors: 陈春辉; 吴建中; 米中生; 杜萍; 张田; 韦冬生; 王永博
Original assignee: NANJING HIGH PRECISION GEAR GROUP CO Ltd; Nanjing High Speed Transmission Equipment Group Co Ltd
Current assignee: Nanjing High Speed and Accurate Gear Group Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2019-12-31

Abstract

The application discloses locking mechanism and gear box relates to locking device's technical field to solve the technical problem that the structure is complicated among the prior art. The locking mechanism comprises a locking disc and a locking structure, wherein the locking disc is provided with a fixing hole for being sleeved on a shaft; the locking structure is detachably connected to the mounting bracket. The locking mechanism comprises a mounting bracket, and the locking mechanism can be detachably connected to the mounting bracket. Therefore, the mounting bracket and the locking disc can be detachably connected together through the locking structure, the structure is simple, electric hydraulic driving is not needed, the effect of locking the input shaft of the gear box can be achieved in a manual mode, and the cost is low.

Description

Locking mechanism and gear box

Technical Field

The application relates to the technical field of locking devices, in particular to a locking mechanism and a gear box.

Background

In the prior art, a locking mechanism of a gear box is a drum brake which uses electric hydraulic pressure as a driving device, and the working principle of the drum brake is as follows: when the electric hydraulic pusher is electrified, the electric hydraulic pusher acts, the push rod of the electric hydraulic pusher is quickly lifted, and the locking tile is opened through the lever action; when the power is cut off, the push rod of the electric hydraulic pusher rapidly descends under the action of the spring force, and the locking tile is folded under the action of the lever, so that the locking is realized. However, the drum type locking device in the prior art has a complex structure.

Disclosure of Invention

The application aims to provide a locking mechanism to solve the technical problem that the structure is complex in the prior art.

The above technical problem of the present application is mainly solved by the following technical solutions:

a locking mechanism comprises a locking disc and a locking structure, wherein the locking disc is provided with a fixing hole for sleeving a shaft; the locking structure is detachably connected to the mounting bracket.

In one embodiment, the locking mechanism includes a mounting bracket to which the locking mechanism is removably attached.

In an embodiment, the locking structure includes a plurality of locking branches, and the mounting bracket is connected to the locking disk through the plurality of locking branches.

In one embodiment, each of the locking branched chains includes a first connecting member, a second connecting member and a fastening member, the first connecting member has two end portions, namely a first hinged end and a first connecting end, and the first hinged end is hinged to the locking plate; the second connecting piece is provided with two end parts which are respectively a second hinged end and a second connecting end, and the second hinged end is hinged on the mounting bracket; the fastener is provided with two end parts, namely a first fastening end and a second fastening end, the first fastening end is used for being connected with the first connecting end, and the second fastening end is used for being connected with the second connecting end.

In an embodiment, the fastening member is a lock nut, the first fastening end is provided with a first inner hole, the inner wall of the first inner hole is provided with a first inner thread, and the outer wall of the first connecting end is provided with a first outer thread matched with the first inner thread; a second inner hole is formed in the second fastening end, a second internal thread is formed in the inner wall of the second inner hole, and a second external thread matched with the second internal thread is formed in the outer wall of the second connecting end; wherein the rotation directions of the first internal thread and the second internal thread are opposite.

In one embodiment, the first bore and the second bore are coaxially disposed.

In an embodiment, the locking disc is a cylindrical structure, a mounting groove is formed in a side surface of the locking disc, a plurality of mounting holes are formed in an end surface of the locking disc, and the mounting holes penetrate through two end surfaces of the locking disc and penetrate through the mounting groove.

In one embodiment, the first hinge end is provided with a first hinge hole; each locking branched chain comprises a first bolt and a first fixing nut, and the first bolt penetrates through the mounting hole, the mounting groove and the first hinge hole; the first fixing nut is connected to the end of the first bolt and can abut against the locking disc.

In an embodiment, the single locking branch chain includes a first spacer, and the first spacer is clamped between the first fixing nut and the locking disk.

In an embodiment, the mounting bracket is provided with a plurality of hinge seats for connecting the second connecting piece.

In one embodiment, the hinge base includes a first bracket and a second bracket, and the second connecting member is sandwiched between the first bracket and the second bracket; the first support is provided with a first hole, and the second support is provided with a second hole.

In one embodiment, the second hinge end is provided with a second hinge hole; the single locking branched chain comprises a second bolt and a second fixing nut, and the second bolt penetrates through the first hole, the second hinge hole and the second hole; the second fixing nut is connected to the end of the second bolt and can abut against the hinge seat.

In an embodiment, the single locking branched chain includes a second gasket, and the second gasket is clamped between the second fixing nut and the hinge base.

In one embodiment, the locking disc is provided with a plurality of lightening holes penetrating through two end faces of the locking disc.

A gear box comprises a box shell, an input shaft and a locking mechanism, wherein an input hole is formed in the box shell; the input shaft is arranged in the input hole in a penetrating manner; the locking mechanism is used for locking the input shaft, and the mounting bracket is fixed on the box shell; the locking disc is sleeved on the input shaft.

Compared with the prior art, the beneficial effect of this application is: the mounting bracket and the locking disc can be detachably connected together through the locking structure, the structure is simple, the interchangeability is high, electric hydraulic driving is not needed, the effect of locking the input shaft of the gear box can be achieved in a manual mode, and the cost is low.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a front view of a gearbox as shown in an embodiment of the present application;

FIG. 2 is a right side view of a gearbox shown in an embodiment of the present application;

FIG. 3 is an elevation view of a locking mechanism shown in an embodiment of the present application;

FIG. 4 is a right side view of the locking mechanism shown in one embodiment of the present application;

FIG. 5 is an exploded cross-sectional view of a locking mechanism shown in one embodiment of the present application;

FIG. 6 is a top view of a gearbox according to an embodiment of the present application;

fig. 7 is an enlarged view of a portion a of fig. 6 of the present application.

Icon: 100-a locking mechanism; 1-mounting a bracket; 11-a hinge mount; 111-a first scaffold; 112-a second bracket; 1111-a first hole; 1121 — a second hole; 12-supporting rib plates; 2-locking the disc; 2 a-the end face of the locking disc; 2 b-the side of the locking disc; 21-a fixation hole; 22-mounting grooves; 23-mounting holes; 24-lightening holes; 300-a locking structure; 3-locking the branched chain; 31-a first connector; 311-a first hinged end; 3111-a first hinge bore; 312 — a first connection end; 3121-a first external thread; 32-a second connector; 321-a second hinged end; 3211-a second hinge hole; 322-a second connection end; 3221-a second external thread; 33-a fastener; 331-a first fastening end; 3311-a first bore; 33111-first internal thread; 332-a second fastening end; 3321-second bore; 33211-second internal thread; 333-a third bore; 34-a first bolt; 35-a first fixing nut; 36-a first shim; 37-a second bolt; 38-a second retaining nut; 39-a second gasket; 400-a gearbox; 41-a box shell; 42-an input aperture; 43-input shaft.

Detailed Description

The terms "first," "second," "third," and the like are used for descriptive purposes only and not for purposes of indicating or implying relative importance, and do not denote any order or order.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should be noted that the terms "inside", "outside", "left", "right", "upper", "lower", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally arranged when products of the application are used, and are used only for convenience in describing the application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the application.

In the description of the present application, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; 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 technical solution of the present application will be clearly and completely described below with reference to the accompanying drawings.

Referring to FIG. 1, a front view of a gearbox 400 according to an embodiment of the present application is shown. The gear box 400 comprises a box shell 41, an input shaft 43 and a locking mechanism 100, wherein the input shaft 43 is used for being in transmission connection with a motor and transmitting torque; a locking mechanism 100 is mounted on the input shaft 43 for effecting locking.

In an embodiment, the gearbox 400 is a reduction gearbox 400, which can be applied to an oxygen lance differential reducer.

In one embodiment, the gearbox 400 is a multi-input shaft 43 gearbox 400, and a plurality of locking mechanisms 100 are provided and respectively mounted on each input shaft 43. When the gearbox 400 is a dual input shaft 43 gearbox 400, two locking mechanisms 100 are provided accordingly.

Referring to FIG. 2, a right side view of a gearbox 400 according to an embodiment of the present application is shown. The locking mechanism 100 comprises a mounting bracket 1, a locking disc 2 and a locking structure 300, wherein the mounting bracket 1 is used for being fixed on a box shell 41 (please refer to fig. 1) of a gear box 400; the locking disc 2 is used for being sleeved on an input shaft 43 (please refer to fig. 1) of the gear box 400; the locking structure 300 is detachably connected to the mounting bracket 1 and the locking disk 2.

The locking disc 2 is arranged above the mounting bracket 1. The bottom surface of the mounting bracket 1 is provided with the support rib plate 12, so that the structural stability is improved, and the mounting bracket 1 can be fixed on the box shell 41 of the gear box 400.

Referring to fig. 3, a front view of the locking mechanism 100 according to an embodiment of the present application is shown. The locking plate 2 is provided with a fixing hole 21, and the locking plate 2 can be sleeved on the input shaft 43 through the fixing hole 21 (see fig. 1). The locking disc 2 may be secured to the input shaft 43 by a key connection or the like.

The locking structure 300 comprises a plurality of locking branched chains 3, and the mounting bracket 1 is connected with the locking disc 2 through the plurality of locking branched chains 3. The mounting bracket 1 is provided with a plurality of hinge seats 11 for connecting the locking branched chains 3, and the hinge seats 11 can be integrally formed with the mounting bracket 1 or can be fixed by welding, threaded connection or other modes. The locking disc 2 is of a cylindrical structure, and a plurality of mounting holes 23 used for connecting the locking branched chains 3 are formed in the end face 2a of the locking disc 2.

The number of the hinge seats 11 is equal to that of the locking branched chains 3. The number of the mounting holes 23 is larger than or equal to the number of the locking branched chains 3, and when the number of the mounting holes 23 is larger than the number of the locking branched chains 3, the length, the angle and the position of connection on the locking disc 2 of the locking branched chains 3 are convenient to adjust.

A plurality of lightening holes 24 are arranged on the locking disc 2, and the lightening holes 24 penetrate through the end face 2a of the locking disc 2, namely the lightening holes 24 penetrate through the locking disc 2 along the thickness direction. The lightening holes 24 are arranged, so that the weight of the locking disc 2 can be lightened, the centrifugal force generated by the rotation of the locking disc 2 along with the input shaft 43 is also reduced, and when the locking disc 2 is arranged on the input shaft 43, the influence of the locking disc 2 on the operation performance of the gearbox 400 can be reduced.

The axial direction of the mounting hole 23 and the axial direction of the lightening hole 24 are both arranged in the same direction as the axial direction of the locking disc 2. And lightening holes 24 and mounting holes 23 are distributed in a circumferential array around the axis of the locking disc 2, the mounting holes 23 are positioned on the outer ring of the lightening holes 24, and the aperture of the lightening holes 24 is larger than that of the mounting holes 23. In one embodiment, two locking branched chains 3 are provided, and the two locking branched chains 3 are arranged in bilateral symmetry, so that the locking branched chains 3 can better lock the locking disc 2. The lightening holes 24 are smooth holes and are provided with 8, and the mounting holes 23 are smooth holes or threaded holes and are provided with 16.

Referring to fig. 4, a right side view of the locking mechanism 100 according to an embodiment of the present application is shown. The single locking branch 3 includes a first connector 31, a second connector 32 and a fastener 33. The first connecting piece 31 has two end parts, namely a first hinged end 311 and a first connecting end 312, wherein the first hinged end 311 is hinged on the locking disk 2; the second connecting member 32 has two end portions, namely a second hinged end 321 and a second connecting end 322, wherein the second hinged end 321 is hinged on the mounting bracket 1; the fastening member 33 has two end portions, a first fastening end 331 and a second fastening end 332, the first fastening end 331 is for connecting with the first connection end 312, and the second fastening end 332 is for connecting with the second connection end 322.

Referring to fig. 5, an exploded cross-sectional view of the locking mechanism 100 according to an embodiment of the present application is shown. The fastening member 33 is a lock nut, such as a double-headed nut, and has a first inner hole 3311 on the first fastening end 331 and a first inner thread 33111 on an inner wall of the first inner hole 3311; a second inner hole 3321 is formed on the second fastening end 332, and a second internal thread 33211 is formed on the inner wall of the second inner hole 3321; the first inner hole 3311 and the second inner hole 3321 are coaxially disposed. The first and second

internal threads

33111, 33211 are oppositely threaded. The first and second

internal threads

33111, 33211 have equal thread lengths, pitches, and thread starts.

In one embodiment, the fastener 33 is provided with a third bore 333, the first bore 3311 and the second bore 3321 communicate with each other via the third bore 333, the bore diameter of the third bore 333 is larger than the bore diameters of the first bore 3311 and the second bore 3321, and the third bore 333 can be used as a relief for the fastener 33 to process the first internal thread 33111 and the second internal thread 33211. The radial cross-section of the fastener 33 may be hexagonal, i.e., the fastener 33 is a double-headed hexagonal nut for tightening the fastener 33.

The first connecting member 31 is a swing bolt, such as GB/T798, and a first hinge hole 3111 is formed at the first hinge end 311, and the first hinge hole 3111 is a light hole; a first external thread 3121 matching the first internal thread 33111 is provided on an outer wall of the first connection end 312.

The second connecting member 32 is a swing bolt, such as GB/T798, and a second hinge hole 3211 is formed on the second hinge end 321, and the second hinge hole 3211 is a light hole; a second external thread 3221 matched with the second internal thread 33211 is arranged on the outer wall of the second connection end 322. In one embodiment, the first connecting member 31 and the second connecting member 32 are bolts with the same size and opposite screwing directions.

Locking dish 2 is the cylinder structure, has seted up mounting groove 22 on the side 2b of locking dish 2, and mounting groove 22 is the annular groove around 2 axis circles of locking dish. The section of the locking disc 2 along the axial direction of the locking disc 2 is I-shaped. A plurality of mounting holes 23 in the locking disc 2 extend through the end face 2a of the locking disc 2 and through the mounting slots 22.

The single locking branched chain 3 comprises a first bolt 34 and a first fixing nut 35, wherein the first bolt 34 is arranged in the mounting hole 23, the mounting groove 22 and the first hinge hole 3111 in a penetrating manner; a first fixing nut 35 is attached to the end of the first bolt 34 and can abut against the locking disk 2. The first connecting element 31 is articulated on the locking plate 2 by means of a first bolt 34 and a first fixing nut 35 and can be rotated about the first bolt 34.

The single locking branch 3 comprises a first spacer 36, the first spacer 36 being interposed between the first fixing nut 35 and the locking disc 2.

In one embodiment, in the single locking branch 3, the first bolt 34 may be a double-headed bolt or a hexagon-headed bolt, and one or two corresponding first fixing nuts 35 and first washers 36 may be provided.

The hinge base 11 includes a first bracket 111 and a second bracket 112, and the second connecting member 32 is interposed between the first bracket 111 and the second bracket 112; the first bracket 111 is provided with a first hole 1111, and the second bracket 112 is provided with a second hole 1121.

The single locking branched chain 3 comprises a second bolt 37 and a second fixing nut 38, wherein the second bolt 37 is arranged in the first hole 1111, the second hinge hole 3211 and the second hole 1121 in a penetrating manner; the second fixing nut 38 is coupled to an end of the second bolt 37 and can abut against the hinge base 11. The second connecting member 32 is hinged to the hinge base 11 by a second bolt 37 and a second fixing nut 38, and can rotate about the second bolt 37.

The single locking branch 3 comprises a second washer 39, the second washer 39 being interposed between the second fixing nut 38 and the hinge base 11.

In one embodiment, in the single locking branch 3, the second bolt 37 may be a double-headed bolt or a hexagon-headed bolt, and one or two corresponding second fixing nuts 38 and second washers 39 may be provided.

In an embodiment of an operation process, the mounting bracket 1 is fixed on the housing 41 (see fig. 1) of the gear box 400 by welding or bolting; the locking disk 2 is fixed on the input shaft 43 (please refer to fig. 1) of the gear box 400 in a key connection mode; the second connecting member 32 may be hinged first or may not be hinged to the hinge base 11 of the mounting bracket 1 first. The first connecting part 31 is not hinged to the locking disk 2. When the gear box 400 enters a working state, namely the motor drives the input shaft 43 to rotate, the locking disc 2 rotates along with the input shaft 43, when the input shaft 43 needs to be locked, the first connecting piece 31 is firstly hinged on the locking disc 2 in each locking branched chain 3, and then the first connecting piece 31 and the second connecting piece 32 are screwed through the fastening piece 33, so that electric hydraulic driving is not needed, and the effect of locking the input shaft 43 of the gear box 400 can be achieved in a manual mode.

Referring to FIG. 6, a top view of a gearbox 400 according to an embodiment of the present application is shown. Please refer to fig. 7, which is an enlarged view of a portion a of fig. 6 of the present application. An input hole 42 is arranged on the box shell 41; the input shaft 43 is inserted through the input hole 42 and exposed to the housing 41.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A locking mechanism, comprising:

the locking disc is provided with a fixing hole and is used for being sleeved on the shaft; and

a locking structure detachably connected to the locking plate.

2. The locking mechanism of claim 1, wherein the locking mechanism comprises: the locking structure is detachably connected to the mounting bracket;

the locking structure comprises a plurality of locking branched chains; wherein a single said locking branch comprises:

the first connecting piece is provided with two end parts which are respectively a first hinged end and a first connecting end, and the first hinged end is hinged on the locking disc;

the second connecting piece is provided with two end parts which are respectively a second hinged end and a second connecting end, and the second hinged end is hinged on the mounting bracket; and

the fastening piece is provided with two end parts which are respectively a first fastening end and a second fastening end, the first fastening end is used for being connected with the first connecting end, and the second fastening end is used for being connected with the second connecting end.

3. The locking mechanism according to claim 2, wherein the fastening member is a locking nut, the first fastening end is provided with a first inner hole, the inner wall of the first inner hole is provided with a first inner thread, and the outer wall of the first connecting end is provided with a first outer thread matched with the first inner thread;

a second inner hole is formed in the second fastening end, a second internal thread is formed in the inner wall of the second inner hole, and a second external thread matched with the second internal thread is formed in the outer wall of the second connecting end;

wherein the rotation directions of the first internal thread and the second internal thread are opposite.

4. The locking mechanism of claim 3 wherein the first bore and the second bore are coaxially disposed.

5. The locking mechanism according to any one of claims 2 to 4, wherein the locking disc is a cylindrical structure, a mounting groove is formed on a side surface of the locking disc, a plurality of mounting holes are formed on an end surface of the locking disc, and the mounting holes penetrate through two end surfaces of the locking disc and penetrate through the mounting groove;

the first hinge end is provided with a first hinge hole;

a single said locking branch comprises:

the first bolt penetrates through the mounting hole, the mounting groove and the first hinge hole; and

and the first fixing nut is connected to the end part of the first bolt and can be abutted against the locking disc.

6. The latch mechanism of claim 5, wherein a single said latch arm comprises: the first gasket is clamped between the first fixing nut and the locking disc.

7. The locking mechanism of claim 5, wherein the mounting bracket is provided with a plurality of hinge mounts for connecting the second connecting member;

the hinge seat comprises a first bracket and a second bracket, and the second connecting piece is clamped between the first bracket and the second bracket; the first support is provided with a first hole, and the second support is provided with a second hole;

a second hinge hole is formed in the second hinge end;

a single said locking branch comprises:

the second bolt penetrates through the first hole, the second hinge hole and the second hole; and

and the second fixing nut is connected to the end part of the second bolt and can be abutted against the hinge seat.

8. The latch mechanism of claim 7, wherein a single said latch arm comprises: and the second gasket is clamped between the second fixing nut and the hinge seat.

9. The locking mechanism of claim 1, wherein the locking plate has a plurality of lightening holes extending through both end faces of the locking plate.

10. A gearbox, comprising:

the device comprises a box shell, a first switch and a second switch, wherein an input hole is formed in the box shell;

the input shaft is arranged in the input hole in a penetrating manner; and

a locking mechanism as claimed in any one of claims 1 to 9 for locking the input shaft.