CN220396308U - Combined gear - Google Patents

Abstract

The utility model discloses a combined gear, which belongs to the technical field of combined gears, and comprises an inner ring assembly and an outer gear ring, wherein the inner ring assembly is assembled in one end of the outer gear ring, the inner ring assembly comprises a base pipe, one end of the base pipe is fixedly connected with a fixed pipe, one end of the fixed pipe, which is far away from the base pipe, is provided with a plurality of pressing strips which are distributed in a circumferential array and are integrally formed with the fixed pipe, the outer surface of the fixed pipe is sleeved with and in threaded connection with a movable pipe, the movable pipe can move towards the position close to the pressing strips by rotating the movable pipe, and when the movable pipe moves to the outer surface of the pressing strips, the movable pipe can press the pressing strips towards the shaft penetrating through the base pipe, so that the pressing strips are pressed on the outer surface of the shaft, the combined gear can be installed on the outer surface of the shaft, shafts with different diameters in a certain range can be adapted, and the flexibility of use is improved.

Description

Combined gear

Technical Field

The utility model relates to the technical field of combined gears, in particular to a combined gear.

Background

In the field of mechanical industry, gears are very common mechanical parts, all of which are required to be used in various types of mechanical equipment, currently existing gears are integrally formed, teeth are easy to wear when the gears are used for a long time, and once the teeth are damaged, the whole gear must be replaced.

The patent with the publication number of CN211202811U discloses a combined gear, when teeth are worn, additional tooth rings can be replaced, the service life of the gear is prolonged, the waste of resources is reduced, and the use cost is reduced, but the aperture of a shaft hole is fixed and can only be installed on a shaft with a specific diameter, and when gears with the same specification are installed on shafts with different diameters, a plurality of gears with different inner diameters are needed, so that the use is not flexible.

Therefore, it is necessary to provide a combination gear.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems existing in the prior art, the utility model aims to provide a combined gear which can realize that a movable pipe is moved by rotating a shaft to be installed through a base pipe to enable the movable pipe to be close to a pressing strip, when the movable pipe moves to the outer surface of the pressing strip, the movable pipe can press the pressing strip to the shaft passing through the base pipe, and a plurality of pressing strips are pressed on the outer surface of the shaft, so that the combined gear can be installed on the outer surface of the shaft, can adapt to shafts with different diameters in a certain range, and improves the flexibility of use.

2. Technical proposal

In order to solve the problems, the utility model adopts the following technical scheme.

The utility model provides a combination gear, includes inner ring subassembly and outer ring gear, inner ring subassembly assembles in the one end of outer ring gear, inner ring subassembly includes the base pipe, the one end fixedly connected with fixed pipe of base pipe, the one end that the base pipe was kept away from to the fixed pipe is provided with a plurality of press bars, a plurality of press bars are circumference array distribution and with fixed pipe integrated into one piece, the surface cover of fixed pipe is established and threaded connection has movable pipe, and inner ring subassembly can adopt plastics to make, will wait to install the axle and pass the base pipe, rotates movable pipe, makes movable pipe move to being close to the press bar, and when movable pipe moved to the surface of press bar, movable pipe can be with the press bar to the axle extrusion of passing the base pipe, makes a plurality of press bars all compress tightly at the surface of axle to can install the axle at the surface of axle with this combination gear, can adapt to the different diameter axle in a certain limit, improved the flexibility of using.

Further, the jack is arranged at the axial center position of one side of the outer gear ring, the jack is matched with the base pipe, the inner ring assembly is detachably connected with the outer gear ring through the fastener, so that the inner ring assembly is conveniently detached while being stably and firmly connected with the outer gear ring, and the outer gear ring can be replaced after being worn.

Further, the circumference side of the inner ring assembly is fixedly connected with a plurality of positioning blocks distributed in a circumference array, and the side of the outer ring is provided with positioning grooves matched with the positioning blocks.

Further, a round hole penetrating through the positioning block is formed in the positioning block, a threaded hole corresponding to the round hole is formed in the bottom wall of the positioning groove, the positioning block is inserted into the positioning groove, and the round hole and the threaded hole can be aligned.

Further, the pressing strips are gradually unfolded outwards from one end close to the fixed pipe to one end far away from the fixed pipe, and the minimum outer diameter of the pressing strips is equal to the outer diameter of the fixed pipe.

Further, the inboard of the one end of press strip is provided with the briquetting, briquetting and press strip integrated into one piece, press the strip through the briquetting compress tightly at the surface of axle, the briquetting can be embedded into the surface of axle in, has improved the fastness that this combination gear and axle are connected.

Further, a plurality of handles are fixedly connected to the peripheral side face of the movable pipe, the handles are distributed in a circumferential array, and the arranged handles can facilitate an operator to rotate the movable pipe.

Further, the side of movable tube wears to establish and threaded connection has a plurality of lockbolts, lockbolt and fixed pipe looks butt can prevent effectively that the movable tube from becoming flexible, and lockbolt's quantity is preferably two, and two lockbolts are the symmetric distribution, can prevent effectively that the focus of this combination gear from deviating from the axis to the condition of vibration appears when rotatory has effectively been avoided.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages that:

(1) According to the scheme, the shaft to be installed penetrates through the base pipe, the movable pipe is rotated, the movable pipe moves towards the pressing strip, when the movable pipe moves to the outer surface of the pressing strip, the movable pipe can extrude the pressing strip towards the shaft penetrating through the base pipe, a plurality of pressing strips are pressed on the outer surface of the shaft, and therefore the combined gear can be installed on the outer surface of the shaft, shafts with different diameters in a certain range can be adapted, and the use flexibility is improved.

(2) The inner ring component and the outer ring gear of this scheme can be dismantled through the fastener and be connected, make inner ring component and outer ring gear convenient dismantlement when stable firm in connection, can change the outer ring gear after the outer ring gear wearing and tearing, effectively avoided the waste of resource.

(3) According to the scheme, the loose prevention of the movable pipe can be effectively realized by arranging the lockbolts, the quantity of the lockbolts is preferably two, the two lockbolts are symmetrically distributed, and the gravity center of the combined gear can be effectively prevented from deviating from the axis, so that the vibration during rotation is effectively avoided.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the inner ring assembly of the present utility model;

FIG. 3 is a schematic view of the outer ring gear of the present utility model;

FIG. 4 is a schematic view of the positioning block according to the present utility model;

fig. 5 is a schematic structural view of the lockbolt of the present utility model.

The reference numerals in the figures illustrate:

1. an inner ring assembly; 11. a base pipe; 12. pressing the strip; 121. briquetting; 13. a fixed tube; 14. a movable tube; 141. a handle; 142. a lockbolt; 15. a positioning block; 151. a round hole; 2. an outer ring gear; 21. a jack; 22. a positioning groove; 221. and (3) a threaded hole.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings; it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments, and that all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments in the present utility model are within the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the positional or positional relationship indicated by the terms such as "upper", "lower", "inner", "outer", "top/bottom", etc. are based on the positional or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "configured to," "engaged with," "connected to," and the like are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Example 1:

referring to fig. 1-5, a combined gear comprises an inner ring assembly 1 and an outer gear ring 2, wherein the inner ring assembly 1 is assembled in one end of the outer gear ring 2, the inner ring assembly 1 comprises a base pipe 11, one end of the base pipe 11 is fixedly connected with a fixed pipe 13, one end of the fixed pipe 13, which is far away from the base pipe 11, is provided with a plurality of pressing strips 12, the pressing strips 12 are distributed in a circumferential array and are integrally formed with the fixed pipe 13, the outer surface of the fixed pipe 13 is sleeved with a movable pipe 14 in threaded connection, the inner ring assembly 1 can be made of plastic, a shaft to be installed penetrates through the base pipe 11, the movable pipe 14 is rotated to enable the movable pipe 14 to move towards the position close to the pressing strips 12, when the movable pipe 14 moves to the outer surface of the pressing strips 12, the movable pipe 14 can extrude the pressing strips 12 towards the shaft penetrating through the base pipe 11, and the pressing strips 12 are pressed on the outer surface of the shaft, so that the combined gear can be installed on the outer surface of the shaft, shafts with different diameters in a certain range can be adapted, and the flexibility of use is improved.

Wherein, one side axle center position of outer ring gear 2 is provided with jack 21, jack 21 and basic pipe 11 looks adaptation, and inner ring subassembly 1 can dismantle with outer ring gear 2 through the fastener and be connected, makes inner ring subassembly 1 and outer ring gear 2 stable firm in connection conveniently dismantle simultaneously, can change outer ring gear 2 after the outer ring gear 2 wearing and tearing.

Wherein, the locating piece 15 that a plurality of circumference array of week side fixedly connected with of inner ring subassembly 1 distribute, the side of outer ring gear 2 is provided with the constant head tank 22 with locating piece 15 looks adaptation, the inside of locating piece 15 is provided with the round hole 151 that runs through locating piece 15, the diapire of constant head tank 22 is provided with the screw hole 221 corresponding with round hole 151, when assembling inner ring subassembly 1 and outer ring gear 2, insert locating piece 15 constant head tank 22, can aim at round hole 151 and screw hole 221, pass the round hole 151 and screw in screw hole 221 can fix inner ring subassembly 1 and outer ring gear 2 with the bolt.

In addition, the plurality of pressing strips 12 are gradually unfolded outwards from one end close to the fixed pipe 13 to one end far away from the fixed pipe 13, and the minimum outer diameter of the plurality of pressing strips 12 is equal to the outer diameter of the fixed pipe 13.

Example 2:

referring to fig. 4, on the basis of embodiment 1, a pressing block 121 is disposed at the inner side of one end of the pressing bar 12, the pressing block 121 and the pressing bar 12 are integrally formed, the pressing bar 12 is pressed on the outer surface of the shaft by the pressing block 121, and the pressing block 121 can be embedded into the surface of the shaft, so that the connection firmness of the combined gear and the shaft is improved.

In addition, the circumference side of the movable tube 14 is fixedly connected with a plurality of handles 141, the handles 141 are distributed in a circumference array, and the arranged handles 141 can facilitate an operator to rotate the movable tube 14.

Example 3:

referring to fig. 5, a plurality of lockbolts 142 are threaded on the side surface of the movable tube 14, the lockbolts 142 are abutted against the fixed tube 13, so that the movable tube 14 can be effectively prevented from loosening, the number of the lockbolts 142 is preferably two, the two lockbolts 142 are symmetrically distributed, and the center of gravity of the combined gear can be effectively prevented from deviating from the axis, thereby effectively avoiding the vibration during rotation.

Working principle: the shaft to be mounted passes through the base pipe 11, the movable pipe 14 is rotated, the movable pipe 14 moves towards the position close to the pressing strip 12, when the movable pipe 14 moves to the outer surface of the pressing strip 12, the movable pipe 14 can press the pressing strip 12 towards the shaft passing through the base pipe 11, the pressing blocks 121 of a plurality of pressing strips 12 are pressed on the outer surface of the shaft, and therefore the combined gear can be mounted on the outer surface of the shaft, and shafts with different diameters in a certain range can be adapted.

The above description is only of the preferred embodiments of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims (8)

1. A combination gear, characterized in that: including inner ring subassembly (1) and outer ring gear (2), inner ring subassembly (1) assemble in the one end of outer ring gear (2), inner ring subassembly (1) include base pipe (11), the one end fixedly connected with fixed pipe (13) of base pipe (11), the one end that base pipe (11) was kept away from to fixed pipe (13) is provided with a plurality of press strips (12), a plurality of press strips (12) are circumference array distribution and with fixed pipe (13) integrated into one piece, the surface cover of fixed pipe (13) is established and screwed connection has movable pipe (14).

2. A combination gear as claimed in claim 1, wherein: the outer gear ring (2) is characterized in that a jack (21) is arranged at the axial center position of one side of the outer gear ring (2), the jack (21) is matched with the base pipe (11), and the inner ring assembly (1) is detachably connected with the outer gear ring (2) through a fastener.

3. A combination gear as claimed in claim 2, wherein: the positioning device is characterized in that positioning blocks (15) distributed in a circumferential array are fixedly connected to the circumferential side face of the inner ring assembly (1), and positioning grooves (22) matched with the positioning blocks (15) are formed in the side face of the outer ring assembly (2).

4. A combination gear according to claim 3, wherein: the inside of locating piece (15) is provided with round hole (151) that runs through locating piece (15), the diapire of constant head tank (22) is provided with screw hole (221) corresponding with round hole (151).

5. A combination gear as claimed in claim 1, wherein: the pressing strips (12) are gradually unfolded outwards from one end close to the fixed tube (13) to one end far away from the fixed tube (13), and the minimum outer diameter of the pressing strips (12) is equal to the outer diameter of the fixed tube (13).

6. A combination gear as claimed in claim 1, wherein: the pressing piece (12) is provided with a pressing block (121) on the inner side of one end of the pressing piece, and the pressing block (121) and the pressing piece (12) are integrally formed.

7. A combination gear as claimed in claim 1, wherein: the circumference side of the movable pipe (14) is fixedly connected with a plurality of handles (141), and the handles (141) are distributed in a circumferential array.

8. A combination gear as claimed in claim 1, wherein: the side face of the movable pipe (14) is penetrated and connected with a plurality of lockbolts (142) in a threaded mode, and the lockbolts (142) are abutted to the fixed pipe (13).