CN219866155U

CN219866155U - Speed reducer structure convenient for replacing gears

Info

Publication number: CN219866155U
Application number: CN202320194770.9U
Authority: CN
Inventors: 刘珍
Original assignee: Hangzhou Boding Transmission Machinery Co ltd
Current assignee: Hangzhou Boding Transmission Machinery Co ltd
Priority date: 2023-02-13
Filing date: 2023-02-13
Publication date: 2023-10-20
Anticipated expiration: 2033-02-13

Abstract

The utility model discloses a speed reducer structure convenient for replacing gears, which belongs to the technical field of speed reducers and comprises a base, a lower shell, an upper shell, a positioning hole, a worm and a transmission gear, wherein the lower shell is fixedly arranged at the upper end of the base, and the upper shell is connected with the upper part of the lower shell; further comprises: the fixing blocks are fixedly arranged at the left side and the right side of the lower shell and the upper shell, and clamping holes are formed in the left side and the right side of the fixing blocks; the guide rod is fixedly arranged on the side edge of the upper end of the base, the moving plates are arranged on the left side and the right side of the guide rod, the inserting columns are fixedly connected to one side, close to the fixed block, of the upper end of the moving plate, and the center screw rod is connected to the moving plate. This speed reducer structure convenient to change gear can conveniently disassemble the speed reducer casing when using, conveniently carries out the local change to the meshing tooth piece at gear edge when inside gear wearing and tearing are serious simultaneously.

Description

Speed reducer structure convenient for replacing gears

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a speed reducer structure convenient for replacing gears.

Background

The speed reducer plays a role in matching the rotating speed and transmitting torque between the prime motor and the working machine or the actuating mechanism, and is commonly used in worm wheel screw rod elevators, and the speed reducer is used for controlling the screw rod to lift up and down.

The utility model provides a speed reducer of removable gear of publication No. CN210484516U, wherein includes quick-witted case, first gear, transfer line, second gear and actuating lever, the inside of machine case is provided with the transfer line, the below of transfer line is provided with the actuating lever, the surface of transfer line is provided with first gear, first gear and the second gear looks adaptation of fixing at the actuating lever tip, the second gear includes first half wheel and lower half wheel, first half wheel with all be provided with the teeth of a cogwheel on the outer circumference of lower half wheel, can guarantee the rigidity of gear like this, can also guarantee that the in-process quality of installation can halve, still need not dismantle whole driven structure, transmission structure, directly install fixedly can, moreover through the nut groove of setting up can guarantee that the nut of bolt tip is laminated on the surface of gear completely, can not influence the normal use of gear.

The following technical problems exist in the prior art: the existing speed reducer is convenient to replace an internal gear in the using process, so that the gear is arranged into a split structure, the gear is convenient to take out from the speed reducer, however, although the split gear is convenient to replace, the gear is only damaged by the meshing gear blocks at the edge when the gear is worn seriously, and the gear is always required to be replaced integrally when the gear is locally damaged, so that the maintenance cost is greatly increased.

We have therefore proposed a speed reducer structure that facilitates replacement of gears so as to solve the problems set forth above.

Disclosure of Invention

The utility model aims to provide a speed reducer structure convenient for replacing gears, which aims to solve the problems that in the prior art, the existing speed reducer in the market is convenient for replacing an internal gear in the use process, so that the gears are arranged into a split type structure, and the gears are convenient to take out from the inside of the speed reducer, however, although the split type gears are convenient to replace, only meshing gear blocks at the edges are damaged when the gears are worn seriously, and the gears are always required to be replaced integrally when the gears are damaged locally, so that the maintenance cost is greatly increased.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a speed reducer structure convenient to change gear, includes base, lower casing, last casing, locating hole, worm and drive gear, the upper end fixed mounting of base has lower casing, and the top of lower casing is connected with the last casing, and the locating hole has been seted up to the avris of base, the right side internally mounted of lower casing and last casing has the worm, and the left side meshing of worm is connected with drive gear;

further comprises:

the fixing blocks are fixedly arranged at the left side and the right side of the lower shell and the upper shell, and clamping holes are formed in the left side and the right side of the fixing blocks;

the guide rod is fixedly arranged on the side edge of the upper end of the base, the moving plates are arranged on the left side and the right side of the guide rod, the inserting columns are fixedly connected to one side, close to the fixed block, of the upper end of the moving plate, and the center screw rod is connected to the moving plate.

Preferably, the transmission gear comprises inner ring body, meshing ring body, butt joint portion, grafting body and locking bolt, and the outside of inner ring body is connected with the meshing ring body, the avris fixedly connected with butt joint portion of inner ring body, and the middle part of butt joint portion has inserted the grafting body, the grafting body is fixed on the meshing ring body, and grafting body and butt joint portion pass through locking bolt interconnect.

Preferably, the butt joint part is of a U-shaped structure, and the inner wall of the middle part of the butt joint part and the outer wall of the plug body are mutually attached.

Through adopting above-mentioned technical scheme, through laminating each other between butt joint portion and the grafting piece to stability when connecting between can guaranteeing interior ring body and the meshing ring body.

Preferably, the moving plates are symmetrically arranged about a transverse central axis of the fixed block, and the symmetrically distributed moving plates can slide on the guide rods.

Through adopting above-mentioned technical scheme, thereby utilize the slip of movable plate on the guide arm can conveniently accomplish the fixed connection between upper casing and the lower casing.

Preferably, two plug-in columns are arranged on the moving plate, and the two plug-in columns correspond to the clamping holes on the side fixing blocks of the lower shell and the upper shell.

Through adopting above-mentioned technical scheme, insert to the inside of joint hole through the spliced pole to can connect its upper housing and lower casing.

Preferably, the threads at the left end and the right end of the central screw rod are opposite in trend, the central screw rod is in threaded connection with the moving plates at the left side and the right side, and the outer wall of the plug-in column on the moving plates is attached to the inner wall of the clamping hole.

Through adopting above-mentioned technical scheme, through the central lead screw of both ends reverse screw thread to can make the movable plate carry out synchronous relative movement.

Compared with the prior art, the utility model has the beneficial effects that: the speed reducer structure convenient for replacing gears can be used for conveniently disassembling the speed reducer shell, and meanwhile, when the internal gears are severely worn, the meshing tooth blocks at the edges of the gears are conveniently replaced locally;

1. the movable plates are arranged, the two movable plates can move towards the direction far away from the fixed block by utilizing the reverse threads at the two ends through the rotation of the central screw rod, so that the plug-in columns on the movable plates and the clamping holes at the side of the fixed block can be separated, and then the upper shell is pulled upwards to complete the decomposition with the lower shell, thereby being convenient for replacing the internal transmission gear;

2. the socket body is arranged, the locking bolt is screwed, the locking bolt is taken down from the socket body and the butt joint part, then the engagement ring body is pulled upwards, the butt joint part of the socket body on the engagement ring body and the side of the inner ring body is separated, and therefore the disassembly between the engagement ring body and the inner ring body can be completed, and the gear is convenient to replace only the abrasion part when the gear is replaced, and the maintenance cost is reduced.

Drawings

FIG. 1 is a schematic view of a front perspective structure of the present utility model;

FIG. 2 is a schematic view of a three-dimensional structure of a fastening hole of a fixing block according to the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 1A according to the present utility model;

FIG. 4 is a schematic perspective view of a worm and drive gear of the present utility model;

FIG. 5 is an exploded perspective view of the inner ring and the mating ring of the present utility model.

In the figure: 1. a base; 2. a lower housing; 3. an upper housing; 4. positioning holes; 5. a worm; 6. a transmission gear; 601. an inner ring body; 602. a mesh ring; 603. a butt joint part; 604. a plug body; 605. a locking bolt; 7. a fixed block; 8. a clamping hole; 9. a guide rod; 10. a moving plate; 11. a plug-in column; 12. and a central screw rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a speed reducer structure convenient to change gear, includes base 1, lower casing 2, upper casing 3, locating hole 4, worm 5 and drive gear 6, and lower casing 2 is fixed firmly to the upper end of base 1, and is connected with upper casing 3 below lower casing 2, and locating hole 4 has been seted up to the avris of base 1, and lower casing 2 and the right side internally mounted of upper casing 3 have worm 5, and the left side meshing of worm 5 is connected with drive gear 6; the left and right sides of the lower shell 2 and the upper shell 3 are fixedly provided with fixed blocks 7, and the left and right sides of the fixed blocks 7 are provided with clamping holes 8; the guide rod 9 is fixedly arranged on the side edge of the upper end of the base 1, the movable plates 10 are arranged on the left side and the right side of the guide rod 9, the inserting columns 11 are fixedly connected to one side, close to the fixed block 7, of the upper end of the movable plate 10, and the central screw rod 12 is connected to the movable plate 10. The moving plates 10 are symmetrically arranged about the transverse central axis of the fixed block 7, and the symmetrically distributed moving plates 10 can slide on the guide rods 9. The two plugging columns 11 are arranged on the movable plate 10, and the two plugging columns 11 correspond to the clamping holes 8 on the side fixing blocks 7 of the lower shell 2 and the upper shell 3. The threads at the left end and the right end of the central screw rod 12 are opposite in trend, the central screw rod 12 is in threaded connection with the movable plates 10 at the left side and the right side, and the outer wall of the plug-in column 11 on the movable plate 10 is mutually attached to the inner wall of the clamping hole 8.

As shown in fig. 1-3, when the transmission gear 6 inside the speed reducer needs to be replaced, the central screw rod 12 is rotated, the two moving plates 10 can move towards one side far away from the fixed block 7 by utilizing the reverse threads on two sides of the central screw rod 12, and at the moment, the plug-in posts 11 on the moving plates 10 are separated from the clamping holes 8 on the side of the fixed block 7 after the moving plates move, so that the fixation between the upper shell 3 and the lower shell 2 is released, and then the upper shell 3 is pulled upwards, so that the speed reducer can be opened to facilitate replacement and maintenance of the transmission gear 6 inside.

The transmission gear 6 comprises an inner ring body 601, an engagement ring body 602, a butt joint part 603, an inserting body 604 and a locking bolt 605, wherein the engagement ring body 602 is connected to the outer side of the inner ring body 601, the butt joint part 603 is fixedly connected to the side of the inner ring body 601, the inserting body 604 is inserted into the middle of the butt joint part 603, the inserting body 604 is fixed to the engagement ring body 602, and the inserting body 604 and the butt joint part 603 are connected with each other through the locking bolt 605. The abutting portion 603 is in a U-shaped structure, and the inner wall of the middle of the abutting portion 603 and the outer wall of the plug body 604 are mutually attached.

As shown in fig. 4 and 5, after the speed reducer is opened, the locking bolt 605 on the side of the transmission gear 6 is screwed to disengage the locking bolt 605 from the abutting portion 603 and the plug body 604, so as to release the fixation between the inner ring body 601 and the engagement ring body 602, and then the engagement ring body 602 is pulled upwards to disengage the abutting portion 603 on the engagement ring body 602 from the plug body 604, so that the transmission gear 6 can be replaced and maintained locally at the worn part, and the overall maintenance cost is reduced.

Working principle: when the speed reducer structure convenient for replacing gears is used, firstly, according to the rotation of the central screw rod 12 shown in fig. 1-5, the plug-in columns 11 on the two moving plates 10 are separated from the clamping holes 8 on the side of the fixed block 7, so that the fixation between the upper shell 3 and the lower shell 2 is released, then the upper shell 3 is pulled upwards, the speed reducer can be opened to conveniently replace and maintain the internal transmission gear 6, the locking bolts 605 on the side edge of the transmission gear 6 are screwed to separate from the abutting part 603 and the plug-in body 604, and then the meshing ring body 602 is pulled upwards to separate from the abutting part 603 on the meshing ring body 602 from the plug-in body 604, so that the transmission gear 6 can be replaced and maintained locally at the wearing part conveniently.

What is not described in detail in this specification is prior art known to those skilled in the art.

Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.

Claims

1. The utility model provides a speed reducer structure convenient to change gear, includes base (1), inferior valve body (2), goes up casing (3), locating hole (4), worm (5) and drive gear (6), the upper end fixed mounting of base (1) has inferior valve body (2), and the top of inferior valve body (2) is connected with inferior valve body (3), and locating hole (4) have been seted up to the avris of base (1), the right side internally mounted of inferior valve body (2) and superior valve body (3) has worm (5), and the left side meshing of worm (5) is connected with drive gear (6);

characterized by further comprising:

the fixing blocks (7) are fixedly arranged at the left side and the right side of the lower shell (2) and the upper shell (3), and clamping holes (8) are formed in the left side and the right side of the fixing blocks (7);

guide arm (9) fixed mounting is in the upper end side of base (1), movable plate (10) are installed to the left and right sides of guide arm (9), and one side that the upper end of movable plate (10) is close to fixed block (7) fixedly connected with spliced pole (11), be connected with central lead screw (12) on movable plate (10).

2. A gear reducer structure for facilitating replacement of gears according to claim 1, wherein: the transmission gear (6) comprises an inner ring body (601), a meshing ring body (602), a butt joint part (603), a plug body (604) and a locking bolt (605), wherein the outer side of the inner ring body (601) is connected with the meshing ring body (602), the butt joint part (603) is fixedly connected with the side of the inner ring body (601), the plug body (604) is inserted into the middle part of the butt joint part (603), the plug body (604) is fixed on the meshing ring body (602), and the plug body (604) and the butt joint part (603) are mutually connected through the locking bolt (605).

3. A gear reducer structure for facilitating replacement of gears according to claim 2, wherein: the butt joint part (603) is of a U-shaped structure, and the inner wall of the middle part of the butt joint part (603) and the outer wall of the plug body (604) are mutually attached.

4. A gear reducer structure for facilitating replacement of gears according to claim 1, wherein: the moving plates (10) are symmetrically arranged about the transverse central axis of the fixed block (7), and the symmetrically distributed moving plates (10) can slide on the guide rod (9).

5. A gear reducer structure for facilitating replacement of gears according to claim 1, wherein: the two plugging columns (11) are arranged on the movable plate (10), and the two plugging columns (11) correspond to the clamping holes (8) on the side fixing blocks (7) of the lower shell (2) and the upper shell (3) respectively.

6. A gear reducer structure for facilitating replacement of gears according to claim 1, wherein: the threads at the left end and the right end of the central screw rod (12) are opposite in trend, the central screw rod (12) is in threaded connection with the movable plates (10) at the left side and the right side, and the outer wall of the plug-in column (11) on the movable plates (10) is attached to the inner wall of the clamping hole (8).