CN213871071U

CN213871071U - Gear shifting structure for speed reducer

Info

Publication number: CN213871071U
Application number: CN202023093753.1U
Authority: CN
Inventors: 王春雨; 王跃; 胡小松; 张健
Original assignee: Huaian Sujian Jinxiang Machinery Manufacturing Co ltd
Current assignee: Huaian Sujian Jinxiang Machinery Manufacturing Co ltd
Priority date: 2020-12-21
Filing date: 2020-12-21
Publication date: 2021-08-03
Anticipated expiration: 2030-12-21

Abstract

The utility model provides a gear shifting structure for speed reducer, which comprises a fixed seat, a movable wheel, a fixed wheel and a conical wheel for adjusting the meshing ratio, wherein the conical wheel is clamped between the movable wheel and the fixed wheel, the right side of the fixed wheel is connected with an input shaft, the input shaft is rotatably arranged on the right side of the fixed seat, the left side of the movable wheel is rotatably connected with a lead screw, the upper side of the conical wheel is connected with a spring rotating shaft, a rotating sleeve is sleeved on the spring rotating shaft, the two sides of the rotating sleeve are symmetrically provided with spring rods for supporting and limiting the spring rotating shaft, the upper side of the spring rotating shaft is connected with two universal joints which are connected in sequence, the upper side of the universal joint is connected with an output shaft, the gear shifting of the traditional speed reducer is provided with a pause feeling, the gear shifting efficiency ratio is lower, the structure of the gear shifting structure is reasonable, the meshing ratio of the movable wheel and the round platform-shaped movable wheel is adjusted by the up and down movement of the conical wheel, the gear shifting adjustment is direct in transmission, no obvious pause and frustration.

Description

Gear shifting structure for speed reducer

Technical Field

The utility model relates to a gear shifting structure for speed reducer belongs to reduction gear technical field.

Background

The reduction gearbox is also called as a speed reducer or a speed reducer, works according to the principle that a prime motor is connected with the reduction gearbox, and the reduction gearbox is connected with a working machine, and is power transmission equipment. The reduction gearbox mainly functions to reduce the output of the motor or increase the output of the motor. When the speed-reducing transmission is available, the prime motor provides power with high rotating speed and low torque, and conversely, when the speed-increasing transmission is available, the prime motor provides power with low rotating speed and high torque. In mechanical transmission, the reduction gearbox needs to drive a working object, namely a working machine, of the reduction gearbox to achieve a preset purpose.

The existing speed reducer is driven by gears, gear shifting is provided with a pause and frustration feeling, in addition, when the gears are shifted, more transmission gears are used, the energy efficiency ratio is lower, and the problem of the existing speed reducer is solved by a gear shifting structure which is urgently needed.

Disclosure of Invention

Aiming at the defects in the prior art, the utility model aims to provide a gear shifting structure for a speed reducer to solve the problems in the background technology, which has reasonable structure, can be bent in multiple dimensions and is suitable for heating spherical workpieces; the multi-section heating wire support frame has better fitness than a single-section support frame, and the heating effect is also good.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a gear shifting structure for speed reducer, includes fixing base, loose wheel, tight pulley, is used for adjusting the cone pulley of meshing ratio, the cone pulley centre gripping is between loose wheel and tight pulley, the tight pulley right side is connected with the input shaft, the input shaft rotates and sets up on the fixing base right side, the loose wheel left side is rotated and is connected with the lead screw, the cone pulley upside is connected with the spring pivot, the cover is equipped with in the spring pivot changes the cover, it is provided with and is used for supporting spacing spring beam to the spring pivot to change cover bilateral symmetry, spring pivot upside is connected with two universal joints that connect gradually, the universal joint upside is connected with the output shaft.

Furthermore, the specification of the movable wheel is the same as that of the fixed wheel, and anti-skidding rubber mats are adhered to the side faces of the movable wheel and the side faces of the fixed wheel.

Furthermore, the included angle of the side surfaces of the movable wheel and the fixed wheel is the same as the indexing cone angle of the conical wheel.

Furthermore, a spring is placed in the spring rotating shaft, a diamond shaft is arranged in the spring rotating shaft in a sliding mode, and the lower end of the diamond shaft is connected with the conical wheel; the annular side surface of the spring rotating shaft is sleeved with a bearing, and the spring rotating shaft is rotatably connected with the rotating sleeve through the bearing.

Further, the lead screw left end is provided with rotatory handle, the fixed swivel mount that is provided with of lead screw right-hand member, the loose wheel left side cover is equipped with the bearing, the loose wheel passes through the bearing and is connected with the lead screw rotation.

Further, the output shaft is sleeved with a sliding sleeve.

Further, the fixing base left side is run through and is provided with the internal thread pipe, and the lead screw thread runs through the internal thread pipe.

The utility model has the advantages that:

1. the input shaft is connected with an external driving device, when the rotating speed of the output shaft needs to be adjusted, the screw rod is driven to move left and right through the rotating handle, the movable wheel is further pushed to move left and right, the conical wheel is further clamped to move up and down through the space between the movable wheel and the fixed wheel, and the meshing ratio of the conical wheel to the movable wheel and the fixed wheel is further adjusted;

2. in the up-and-down movement process of the cone-shaped wheel, the fixed wheel is fixed to rotate, so that the cone-shaped wheel moves upwards and generates certain displacement rightwards at the same time, and the spring rod is used for buffering the displacement and preventing the cone-shaped wheel from being meshed and deviated with the movable wheel and the fixed wheel;

3. the in-process of skew about the cone pulley can finally drive the output shaft and produce certain vertical displacement, and the sliding sleeve is used for buffering this vertical displacement to guarantee that the output shaft effectively rotates.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a schematic cross-sectional view of a gear shifting structure for a speed reducer according to the present invention for heating a workpiece;

fig. 2 is a cross-sectional view of a gear shift structure for a reduction gear according to the present invention;

in the figure: the device comprises a fixed seat 1, a threaded tube 2, a rotary handle 3, a lead screw 4, a rotary seat 5, a movable wheel 6, an antiskid rubber mat 61, a conical wheel 7, a diamond-shaped shaft 71, a fixed wheel 8, an input shaft 9, a spring rod 10, a rotary sleeve 11, a universal joint 12, a sliding sleeve 13, a spring rotating shaft 14, a spring 141 and an output shaft 15.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a gear shifting structure for speed reducer, which comprises a fixed base 1, the loose wheel 6, the tight pulley 8, a cone pulley 7 for adjusting the meshing ratio, 7 centre grippings of cone pulley are between loose wheel 6 and

tight pulley

8, 8 right sides of tight pulley are connected with input shaft 9, input shaft 9 rotates and sets up on 1 right side of fixed base, 6 left sides of loose wheel are rotated and are connected with lead screw 4, 7 upsides of cone pulley are connected with spring shaft 14, the cover is equipped with swivel sleeve 11 on the

spring shaft

14, 11 bilateral symmetry of swivel sleeve are provided with and are used for supporting spacing spring beam 10 to

spring shaft

14, 14 upsides of spring shaft are connected with two universal joints 12 that connect gradually, 12 upsides of universal joints are connected with output shaft 15, the reduction gear that has in the past is shifted and has a pause and frustrat.

The utility model discloses a 6 specifications of movable wheel are the same with 8 specifications of tight pulley, and movable wheel 6 and 8 sides of tight pulley are all pasted and are had anti-skidding cushion 61 for no tooth meshing between cone pulley 7 and movable wheel 6.

The utility model discloses a movable pulley 6, 8 side contained angles of tight pulley are the same with the graduation circular cone angle of cone pulley 7, make cone pulley 7 closely laminate with movable pulley 6, 8 sides of tight pulley.

The spring 141 is placed in the spring 141 rotating rod 14, the diamond shaft 71 is arranged in the spring 141 rotating rod 14 in a sliding manner, and the lower end of the diamond shaft 71 is connected with the cone-shaped wheel 7, so that the spring 141 rotating rod 14 and the cone-shaped wheel 7 synchronously rotate on the one hand, and the cone-shaped wheel 7 can be ensured to move up and down;

the utility model discloses a change 11 bilateral symmetry of cover and be provided with and be used for supporting spacing spring beam 10 to

spring shaft

14, 14 annular side covers of spring 141 bull stick are equipped with the bearing, spring 141 bull stick 14 passes through the bearing and changes 11 rotations of cover and be connected, cone pulley 7 reciprocates the in-process, because the fixed rotation of tight pulley 8, when can make cone pulley 7 upwards remove, also produce certain displacement right, spring beam 10 is used for buffering this displacement, it is skew to prevent to mesh between cone pulley 7 and loose pulley 6 and the tight pulley 8.

The utility model discloses a 1 left side of fixing base is run through and is provided with internal thread pipe 2, and 4 threads on lead screw run through internal thread pipe 2, 4 left ends on lead screw are provided with rotatory handle 3, the fixed swivel mount 5 that is provided with of 4 right-hand members on lead screw, 6 left side covers of loose wheel are equipped with the bearing, loose wheel 6 passes through the bearing and is connected with 4 rotations of lead screw, through rotatory handle 3, control about the drive lead screw 4, and then through the interval between loose wheel 6 and the tight pulley 8, centre gripping cone pulley 7 reciprocates, and then adjust the meshing ratio of cone wheel 7 and loose wheel 6 and tight pulley 8.

The utility model discloses a cover is equipped with sliding sleeve 13 on output shaft 15, and the in-process of skew about the cone pulley can finally drive output shaft 15 and produce certain vertical displacement, and sliding sleeve 13 is used for buffering this vertical displacement to guarantee that output shaft 15 effectively rotates.

The specific working principle is as follows: the input shaft 9 is connected with an external driving device, when the rotating speed of the output shaft 15 needs to be adjusted, the screw rod 4 is driven to move left and right by rotating the handle 3, the movable wheel 6 is further pushed to move left and right, the conical wheel 7 is further clamped to move up and down through the distance between the movable wheel 6 and the fixed wheel 8, and the meshing ratio of the conical wheel 7 to the movable wheel 6 and the fixed wheel 8 is further adjusted;

in the process that the conical wheel 7 moves up and down, as the fixed wheel 8 rotates fixedly, the conical wheel 7 moves up and generates a certain displacement rightwards, and the spring rod 10 is used for buffering the displacement and preventing the conical wheel 7 from being meshed and deviated with the movable wheel 6 and the fixed wheel 8;

the process of cone pulley 7 left and right sides skew can finally drive output shaft 15 and produce certain vertical displacement, and sliding sleeve 13 is used for buffering this vertical displacement to guarantee that output shaft 15 effectively rotates.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A gear shifting structure for a speed reducer is characterized in that: including fixing base (1), loose wheel (6), tight pulley (8), be used for adjusting cone pulley (7) that the meshing compares, cone pulley (7) centre gripping is between loose wheel (6) and tight pulley (8), tight pulley (8) right side is connected with input shaft (9), input shaft (9) are rotated and are set up on fixing base (1) right side, loose wheel (6) left side is rotated and is connected with lead screw (4), cone pulley (7) upside is connected with spring shaft (14), the cover is equipped with commentaries on classics cover (11) on spring shaft (14), it is provided with and is used for supporting spacing spring lever (10) to spring shaft (14) to change cover (11) bilateral symmetry, spring shaft (14) upside is connected with two universal joint (12) that connect gradually, universal joint (12) upside is connected with output shaft (15).

2. The gear shift structure for a speed reducer according to claim 1, wherein: the specification of the movable wheel (6) is the same as that of the fixed wheel (8), and anti-skidding rubber pads (61) are adhered to the side surfaces of the movable wheel (6) and the fixed wheel (8).

3. A gear shift structure for a speed reducer according to claim 1 or 2, wherein: the included angles of the side surfaces of the movable wheel (6) and the fixed wheel (8) are the same as the indexing cone angle of the conical wheel (7).

4. The gear shift structure for a speed reducer according to claim 1, wherein: a spring (141) is arranged in the spring rotating shaft (14), a diamond-shaped shaft (71) is arranged in the spring rotating shaft (14) in a sliding manner, and the lower end of the diamond-shaped shaft (71) is connected with the conical wheel (7); the annular side surface of the spring rotating shaft (14) is sleeved with a bearing, and the spring rotating shaft (14) is rotatably connected with the rotating sleeve (11) through the bearing.

5. The gear shift structure for a speed reducer according to claim 1, wherein: the lead screw (4) left end is provided with rotation handle (3), lead screw (4) right-hand member is fixed and is provided with swivel mount (5), loose wheel (6) left side cover is equipped with the bearing, loose wheel (6) are rotated with lead screw (4) through the bearing and are connected.

6. The gear shift structure for a speed reducer according to claim 1, wherein: the output shaft (15) is sleeved with a sliding sleeve (13).

7. The gear shift structure for a speed reducer according to claim 1, wherein: the left side of the fixing seat (1) is provided with an internal threaded pipe (2) in a penetrating mode, and the screw rod (4) penetrates through the internal threaded pipe (2) in a threaded mode.