CN212509391U

CN212509391U - Speed change gear

Info

Publication number: CN212509391U
Application number: CN202020452125.9U
Authority: CN
Inventors: 居迎跃
Original assignee: Taixing Shuntai Reducer Co ltd
Current assignee: Taixing Shuntai Reducer Co ltd
Priority date: 2020-03-31
Filing date: 2020-03-31
Publication date: 2021-02-09
Anticipated expiration: 2030-03-31

Abstract

The utility model discloses a speed change gear, include: a protection box; one end of the input shaft is arranged on the outer wall of one end of the protection box, and the other end of the input shaft extends into the inner cavity of the protection box and is arranged on the inner wall of the other end of the protection box; the gear sets are arranged in the inner cavity of the protective box; the two gear sets are meshed with each other through the toothed chain; the outer wall of one end of the protection box is provided with two rotating buttons along the horizontal direction; the gear shifting mechanism is arranged at the inner end of the rotating button; the pressing block is arranged on the outer wall of the front end of the protection box; and the inner end of the pressing block is provided with the lubricating mechanism. The variable speed gear can carry out variable speed adjustment on the two gear sets through the gear shifting mechanism, and can carry out various variable speeds through multi-gear change, so that variable speed gears are increased; through extrusion lubrication mechanism, can make the chain tooth refuel lubricated, long service life, the practicality is strong.

Description

Speed change gear

Technical Field

The utility model relates to the technical field of gears, specifically a speed change gear.

Background

The speed changer is a mechanism used for changing the rotating speed and the torque from the engine, can change the transmission ratio of an output shaft and an input shaft by fixing or stepping, is also called as a speed changing box, consists of a speed changing transmission mechanism and an operating mechanism, some automobiles are also provided with power output mechanisms, the transmission mechanism is mostly driven by common gears and also driven by planet gears, and the common gear transmission speed changing mechanism is generally driven by a sliding gear, a synchronizer and the like;

be provided with the gear of multiunit in the derailleur, realize the variable speed through the gear of variation in size, the changeable rotational speed of present change gear is less, is not suitable for under most work demand, moreover, change gear friction is great in the course of the work, long-time the use, and the life of gear reduces, and the practicality is poor.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a change gear to solve prior art's change gear at least and can't change speed and lubricated problem in many.

In order to achieve the above object, the utility model provides a following technical scheme: a speed change gear comprising:

a protection box;

one end of the input shaft is arranged on the outer wall of one end of the protection box, and the other end of the input shaft extends into the inner cavity of the protection box and is arranged on the inner wall of the other end of the protection box;

the gear sets are arranged in the inner cavity of the protective box;

the two gear sets are meshed with each other through the toothed chain;

the outer wall of one end of the protection box is provided with two rotating buttons along the horizontal direction;

the gear shifting mechanism is arranged at the inner end of the rotating button;

the pressing block is arranged on the outer wall of the front end of the protection box;

the lubricating mechanism is arranged at the inner end of the pressing block;

the inner cavity of the protection box is provided with an output shaft which is specifically positioned on one side of the input shaft.

Preferably, a top cover is arranged at the top end of the protection box, and a lock hole is formed in one end of the protection box.

Preferably, bearings are arranged at the joints of the input shaft and the output shaft with the protection box.

Preferably, the shift mechanism includes: the other end of the rotating button is provided with one end of the screw, and the other end of the screw extends into the inner cavity of the protection box; the other end of the screw is in threaded connection with one end of the oil connecting block; the other end of the connecting block is provided with a gear mounting block, and a gear is arranged in the gear mounting block; the inner wall of one end of the protection box is provided with a sliding groove block, and the top end of the sliding groove block is provided with a sliding groove; the bottom end of the gear mounting block is provided with a convex block; the oil inlet, the one end of oil inlet is seted up on the top of connecting block, the other end of oil inlet extends to the inner wall of gear installation piece.

Preferably, the toothed chain is engaged with the internal gears and the two gear sets of the two gear mounting blocks, and the surfaces of the input shaft and the output shaft are in interference fit with central holes of the gear sets.

Preferably, the lubricating mechanism includes: the inner end of the pressing block is provided with one end of the connecting rod, and the other end of the connecting rod extends into the inner cavity of the protection box; the other end of the connecting rod extends into the oil containing block, and the oil containing block is arranged on the inner wall of the other end of the protective box; the other end of the connecting rod is provided with a pressing block; the top end of the oil loading block is provided with an oil inlet; the oil outlet pipe, the rear end of dress oil piece is provided with the one end of oil outlet pipe.

Preferably, the other end of the oil outlet pipe is respectively arranged in the two oil inlet holes.

Compared with the prior art, the beneficial effects of the utility model are that: the variable speed gear can carry out variable speed adjustment on the two gear sets through the gear shifting mechanism, and can carry out various variable speeds through multi-gear change, so that variable speed gears are increased; through extrusion lubrication mechanism, can make the chain tooth refuel lubricated, long service life, the practicality is strong.

Drawings

FIG. 1 is a schematic perspective view of the present invention;

FIG. 2 is a schematic diagram of the front end structure of the inner cavity of the protection box of FIG. 1;

FIG. 3 is a schematic diagram of the rear end structure of the inner cavity of the protection box in FIG. 1;

fig. 4 is an enlarged schematic view of a portion a of fig. 2.

In the figure: 1. the oil pump comprises a protection box, 2, a top cover, 3, a lock hole, 4, an input shaft, 5, a gear set, 6, a toothed chain, 7, a rotating button, 8, a gear shifting mechanism, 9, a pressing block, 10, a lubricating mechanism, 11, an output shaft, 81, a screw rod, 82, a connecting block, 83, a gear mounting block, 84, a sliding groove block, 85, a convex block, 86, an oil inlet hole, 101, a connecting rod, 102, an oil loading block, 103, a pressing block, 104, an oil inlet, 105 and an oil outlet pipe.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, the present invention provides a technical solution: a speed change gear comprising: the gear shifting device comprises a protective box 1, an input shaft 4, a gear set 5, a gear chain 6, a rotating button 7, a gear shifting mechanism 8, a pressing block 9, a lubricating mechanism 10 and an output shaft 11, wherein one end of the input shaft 4 is arranged on the outer wall of one end of the protective box 1, and the other end of the input shaft 4 extends into the inner cavity of the protective box 1 and is arranged on the inner wall of the other end of the protective box 1; the number of the gear sets 5 is two, and the two gear sets 5 are arranged in the inner cavity of the protective box 1; a toothed chain 6 is meshed between the two gear sets 5; the outer wall of one end of the protection box 1 is provided with two rotating buttons 7 along the horizontal direction; the inner end of the knob 7 is provided with a gear shifting mechanism 8; a pressing block 9 is arranged on the outer wall of the front end of the protection box 1; the inner end of the pressing block 9 is provided with a lubricating mechanism 10; an output shaft 11 is arranged in an inner cavity of the protection box 1, is specifically positioned on one side of the input shaft 4, and lubricates the toothed chain through a lubricating mechanism 10.

Preferably, a top cover 2 is disposed at the top end of the protection box 1, and a locking hole 3 is disposed at one end of the protection box 1, so that the protection box 1 can be opened for maintenance.

Preferably, bearings are arranged at the joints of the input shaft 4 and the output shaft 11 and the protection box 1, so that the input shaft 4 and the output shaft 11 can rotate conveniently.

Preferably, the gearshift mechanism 8 further includes: the screw 81, the connecting block 82, the gear mounting block 83, the sliding groove block 84, the bump 85, the oil inlet hole 86 and the other end of the knob 7 are provided with one end of the screw 81, and the other end of the screw 81 extends into the inner cavity of the protective box 1; the other end of the screw 81 is screwed with one end of an oil connecting block 82; the other end of the connecting block 82 is provided with a gear mounting block 83, and a gear is arranged in the gear mounting block 83; a sliding groove block 84 is arranged on the inner wall of one end of the protection box 1, and a sliding groove is formed in the top end of the sliding groove block 84; the bottom end of the gear mounting block 83 is provided with a lug 85; one end of an oil inlet hole 86 is formed in the top end of the connecting block 82, the other end of the oil inlet hole 86 extends to the inner wall of the gear mounting block 83, and the connecting block 82 is prevented from rotating by the arrangement of the sliding groove block 84.

Preferably, the toothed chain 6 is engaged with the internal gears of the two gear mounting blocks 83 and the two gear sets 5, and the surfaces of the input shaft 4 and the output shaft 11 are in interference fit with the central holes of the gear sets 5, so that the speed regulation is facilitated.

Preferably, the lubricating mechanism 10 further includes: the oil inlet and outlet device comprises a connecting rod 101, an oil loading block 102, a pressing block 103, an oil inlet 104 and an oil outlet pipe 105, wherein one end of the connecting rod 101 is arranged at the inner end of a pressing block 9, and the other end of the connecting rod 101 extends into an inner cavity of the protection box 1; the other end of the connecting rod 101 extends into the oil containing block 102, and the oil containing block 102 is arranged on the inner wall of the other end of the protective box 1; the other end of the connecting rod 101 is provided with a pressing block 103; an oil inlet 104 is formed at the top end of the oil loading block 102; one end of the oil outlet pipe 105 is provided at the rear end of the oil containing block 102, and the lubricating oil is extruded out of the oil containing block 102 through the pressing block 103.

Preferably, the other end of the oil outlet pipe 105 is disposed in the two oil inlet holes 86, respectively, thereby facilitating lubrication.

The gear set 5 of the present application is the prior art, and the gear set 5 can meet the requirements of the present application.

The detailed connection means is a technique known in the art, and the following mainly describes the working principle and process, and the specific operation is as follows.

Before the operation, a crank or a motor is arranged at one end of the input shaft 4 to drive the input shaft 4 to rotate, the screw 81 is rotated by rotating the knob 7, the connecting block 82 is moved back and forth, the gear mounting block 83 drives the toothed chain 6 to move back and forth, the gear meshed with the toothed chain 6 by the gear set 5 is changed, and the rotating speed of the output shaft 11 is further changed; by extruding the pressing block 9, the lubricating oil in the oil loading block 102 is extruded into the oil outlet pipe 105, and the lubricating oil enters the oil inlet hole 86 to lubricate the toothed chain 6, so that the practicability is high.

In the description of the present invention, it is to be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inner", "front", "center", "both ends", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation; also, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," "fixedly mounted," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A speed-change gear, comprising:

a protection box (1);

one end of the input shaft (4) is arranged on the outer wall of one end of the protection box (1), and the other end of the input shaft (4) extends into the inner cavity of the protection box (1) and is arranged on the inner wall of the other end of the protection box (1);

the gear sets (5), the number of the gear sets (5) is two, and the two gear sets (5) are arranged in the inner cavity of the protective box (1);

the toothed chain (6) is meshed between the two gear sets (5);

the outer wall of one end of the protection box (1) is provided with two rotating buttons (7) along the horizontal direction;

the gear shifting mechanism (8), the inner end of the knob (7) is provided with the gear shifting mechanism (8);

the pressing block (9) is arranged on the outer wall of the front end of the protection box (1);

the lubricating mechanism (10) is arranged at the inner end of the pressing block (9);

the output shaft (11) is arranged in the inner cavity of the protection box (1), and the output shaft (11) is specifically positioned on one side of the input shaft (4).

2. A change gear according to claim 1, characterized in that the top end of the protective box (1) is provided with a top cover (2), and one end of the protective box (1) is provided with a lock hole (3).

3. A change gear according to claim 2, characterised in that bearings are provided at the connection of the input shaft (4) and the output shaft (11) to the protective housing (1).

4. A change gear according to claim 3, characterised in that the gear shifting mechanism (8) comprises:

the other end of the rotating button (7) is provided with one end of the screw rod (81), and the other end of the screw rod (81) extends into the inner cavity of the protection box (1);

the other end of the screw rod (81) is in threaded connection with one end of the oil connecting block (82);

the gear mounting block (83), the other end of the connecting block (82) is provided with the gear mounting block (83), and a gear is arranged in the gear mounting block (83);

the inner wall of one end of the protection box (1) is provided with a sliding groove block (84), and the top end of the sliding groove block (84) is provided with a sliding groove;

the bottom end of the gear mounting block (83) is provided with a lug (85);

the oil inlet structure comprises an oil inlet hole (86), one end of the oil inlet hole (86) is formed in the top end of the connecting block (82), and the other end of the oil inlet hole (86) extends to the inner wall of the gear mounting block (83).

5. A change gear according to claim 4, characterised in that the toothed chain (6) engages both the internal gear of the two gear mounting blocks (83) and the two gear sets (5), and that the surfaces of the input shaft (4) and the output shaft (11) are each interference fitted with the central bores of the gear sets (5).

6. A transmission gear according to claim 5, characterized in that said lubricating mechanism (10) comprises:

the inner end of the pressing block (9) is provided with one end of the connecting rod (101), and the other end of the connecting rod (101) extends into the inner cavity of the protection box (1);

the other end of the connecting rod (101) extends into the oil containing block (102), and the oil containing block (102) is arranged on the inner wall of the other end of the protective box (1);

the other end of the connecting rod (101) is provided with a pressing block (103);

the top end of the oil loading block (102) is provided with an oil inlet (104);

the oil outlet pipe (105), the rear end of the oil loading block (102) is provided with one end of the oil outlet pipe (105).

7. A change gear according to claim 6, characterised in that the other end of the oil outlet pipe (105) is disposed in each of the two oil inlet holes (86).