CN212775504U

CN212775504U - High-precision worm gear speed reducer with clearance elimination structure

Info

Publication number: CN212775504U
Application number: CN202020981801.1U
Authority: CN
Inventors: 陈惠娜
Original assignee: Hangzhou Xinrongfang Technology Co ltd
Current assignee: Hangzhou Chenghua Machinery Co ltd
Priority date: 2020-06-02
Filing date: 2020-06-02
Publication date: 2021-03-23
Anticipated expiration: 2030-06-02

Abstract

The utility model discloses a take high accuracy worm gear speed reducer of clearance elimination structure, the shell including base and fixed connection and base top, the equal fixedly connected with electric putter in both sides at shell inner wall top, fixedly connected with sliding plate between the both sides of shell inner wall, electric putter's the top fixed connection of end and sliding plate that stretches out, the fixed slot has been seted up to the bottom of sliding plate, and the top fixedly connected with buffer spring of fixed slot inner wall, buffer spring's bottom fixedly connected with protective frame, the utility model relates to a worm gear speed reducer technical field. The high-precision worm and gear speed reducer with the clearance elimination structure can realize automatic clearance adjustment and elimination when the worm and the worm gear rotate and rub for a long time to generate a reverse clearance, improves the rotation precision of the worm and the worm gear, prolongs the service life of the speed reducer, and lays a foundation for the normal use of the follow-up speed reducer.

Description

High-precision worm gear speed reducer with clearance elimination structure

Technical Field

The utility model relates to a worm gear speed reducer machine technical field specifically is a high accuracy worm gear speed reducer machine of structure is eliminated in band gap.

Background

The worm gear speed reducer is a power transmission mechanism, and utilizes the speed converter of gear to reduce the revolution number of motor to required revolution number and obtain the mechanism with larger torque, and in the mechanism for transmitting power and motion, the application range of the speed reducer is very extensive, and its trail can be seen in the transmission system of various machines, and the application of the speed reducer can be seen from the transmission work of large power, to small load and accurate angle transmission of small load and clock and watch, etc. from the ship, automobile and locomotive of traffic tool, heavy equipment for building, processing equipment and automatic production equipment used in mechanical industry, to common household appliances and clocks in daily life, and in industrial application, the speed reducer has the functions of reducing speed and increasing torque, so that it can be extensively used in the speed and torque conversion equipment.

Inside the speed reducer, because the long-time running friction of worm gear, it is long and of a specified duration, the tooth meshing department of worm wheel and worm will certainly produce wearing and tearing, leads to having reverse clearance between the two because of wearing and tearing, has reduced the high accuracy requirement of speed reducer, consequently to above problem, the utility model provides a high accuracy worm gear speed reducer of structure is eliminated in clearance.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a take clearance to eliminate high accuracy worm gear speed reducer of structure has solved long-term the use of speed reducer and has caused the tooth meshing department of worm wheel and worm to produce wearing and tearing, leads to having reverse clearance between the two because of wearing and tearing, has reduced the problem of speed reducer high accuracy requirement.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a high accuracy worm gear speed reducer machine of structure is eliminated in band gap, includes the shell at base and fixed connection and base top, the equal fixedly connected with electric putter in both sides at shell inner wall top, fixedly connected with sliding plate between the both sides of shell inner wall, electric putter's the end that stretches out and the top fixed connection of sliding plate, the fixed slot has been seted up to the bottom of sliding plate, and the top fixedly connected with buffer spring of fixed slot inner wall, buffer spring's bottom fixedly connected with protection frame, it is connected with the output shaft to rotate through the bearing between the relative one side of protection frame inner wall.

Preferably, one end of the output shaft penetrates through the protection frame and extends to the back face of the protection frame, one end of the output shaft, which extends to the back face of the protection frame, is fixedly connected with a protection block, and the other end of the output shaft penetrates through the protection frame and the shell in sequence and extends to the front face of the shell.

Preferably, the bottom of protection frame runs through the fixed slot and extends to the bottom of fixed slot, the front of protection frame is seted up with the logical groove of output shaft looks adaptation.

Preferably, the bottom that the both sides of shell inner wall just are located the sliding plate all through connecting rod fixedly connected with sliding block, the both sides of protective frame and the inner wall sliding connection of sliding block.

Preferably, the surface of the output shaft is fixedly connected with a worm wheel inside the protective frame, and a worm meshed with the worm wheel is rotatably connected between the two sides of the inner wall of the base through a ball bearing.

Preferably, one end of the worm penetrates through the base and extends to one side of the base, and an aerator is fixedly connected to one side of the top of the shell.

Advantageous effects

The utility model provides a take clearance to eliminate high accuracy worm gear speed reducer of structure. Compared with the prior art, the method has the following beneficial effects:

(1) the high-precision worm gear reducer with the clearance elimination structure is characterized in that electric push rods are fixedly connected to two sides of the top of the inner wall of a shell, a sliding plate is fixedly connected between the two sides of the inner wall of the shell, an extending end of each electric push rod is fixedly connected with the top of the sliding plate, a fixing groove is formed in the bottom of the sliding plate, a buffer spring is fixedly connected to the top of the inner wall of the fixing groove, a protection frame is fixedly connected to the bottom end of the buffer spring, an output shaft is rotatably connected between the opposite sides of the inner wall of the protection frame through a bearing, one end of the output shaft penetrates through the protection frame and extends to the back of the protection frame, a protection block is fixedly connected to one end of the output shaft extending to the back of the protection frame, the other end of the output shaft sequentially penetrates through the protection frame and the shell and extends to, when the worm and the worm wheel generate reverse clearance due to long-term rotation friction, the clearance can be automatically adjusted and eliminated, the rotation precision of the worm wheel and the worm is improved, the service life of the speed reducer is prolonged, and a foundation is laid for the normal use of the subsequent speed reducer.

(2) This high accuracy worm gear speed reducer of structure is eliminated in band gap, the bottom that just is located the sliding plate through the both sides of shell inner wall all through connecting rod fixedly connected with sliding block, and the both sides of protective frame and the inner wall sliding connection of sliding block can realize carrying out spacing slip to protective frame when its downstream, thereby prevent to rock the meshing that influences worm wheel and worm about the protective frame.

Drawings

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

FIG. 2 is a cross-sectional view of the base and housing structure of the present invention;

fig. 3 is a side view of the internal structure of the sliding plate and the protective frame of the present invention.

In the figure: 1-base, 2-shell, 3-electric push rod, 4-sliding plate, 5-buffer spring, 6-fixed groove, 7-protective frame, 8-output shaft, 9-through groove, 10-sliding block, 11-worm wheel, 12-ball bearing, 13-worm, 14-protective block, 15-connecting rod and 16-breather.

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. 1-3, the present invention provides a technical solution: a high-precision worm gear reducer with a clearance eliminating structure can automatically adjust and eliminate clearance when a worm 13 and a worm wheel 11 generate reverse clearance through long-term rotation friction, improves the rotation precision of the worm 13 and the worm wheel 11, simultaneously prolongs the service life of the reducer, lays a foundation for the normal use of a subsequent reducer, and comprises a base 1 and a shell 2 fixedly connected with the top of the base 1, wherein sliding blocks 10 are fixedly connected with the two sides of the inner wall of the shell 2 and positioned at the bottom of a sliding plate 4 through connecting rods 15, the sliding blocks 10 can realize the limit sliding of a protective frame 7 when the protective frame 7 moves downwards, so that the protective frame 7 is prevented from shaking left and right to influence the meshing of the worm wheel 11 and the worm 13, the two sides of the protective frame 7 are slidably connected with the inner wall of the sliding block 10, and electric push rods 3 are fixedly connected with the two sides of, a sliding plate 4 is fixedly connected between two sides of the inner wall of the shell 2, the extending end of the electric push rod 3 is fixedly connected with the top of the sliding plate 4, the bottom of the sliding plate 4 is provided with a fixed groove 6, the top of the inner wall of the fixed groove 6 is fixedly connected with a buffer spring 5, the bottom end of the buffer spring 5 is fixedly connected with a protective frame 7, the bottom of the protective frame 7 penetrates through the fixed groove 6 and extends to the bottom of the fixed groove 6, the front of the protective frame 7 is provided with a through groove 9 matched with the output shaft 8, the output shaft 8 is rotatably connected between one opposite sides of the inner wall of the protective frame 7 through a bearing, the surface of the output shaft 8 is fixedly connected with a worm wheel 11 positioned inside the protective frame 7, a worm 13 meshed with the worm wheel 11 is rotatably connected between two sides of the inner wall of the base 1 through a ball bearing 12, reduce the frictional force in the power transmission process and improve the transmission efficiency of mechanical power with the roll mode, the one end of worm 13 runs through base 1 and extends to one side of base 1, one side fixedly connected with breather 16 at shell 2 top, the one end of output shaft 8 runs through protective frame 7 and extends to the back of protective frame 7, one end fixedly connected with protection piece 14 that output shaft 8 extended to the back of protective frame 7, the other end of output shaft 8 runs through protective frame 7 and shell 2 in proper order and extends to the front of shell 2.

During the use, when worm wheel 11 and worm 13 produced reverse clearance, start external switch, make electric putter 3 begin work, electric putter 3 drives sliding plate 4 downstream, sliding plate 4 pushes down and moves and drive protective frame 7 downstream through buffer spring 5, meanwhile protective frame 7 slides along sliding block 10 on connecting rod 15, make between worm wheel 11 on the output shaft 8 and the worm 13 closely mesh, adjust the clearance and eliminate, buffer spring 5's setting can compensate the gap between worm wheel 11 and the worm 13 automatically, make the rotation precision between follow-up worm 13 and the worm wheel 11 uprise, just so accomplished whole work.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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. The utility model provides a high accuracy worm gear speed reducer machine of structure is eliminated in band gap, includes shell (2) at base (1) and fixed connection and base (1) top, its characterized in that: the improved electric shock absorber is characterized in that electric push rods (3) are fixedly connected to two sides of the top of the inner wall of the shell (2), sliding plates (4) are fixedly connected between two sides of the inner wall of the shell (2), the extending ends of the electric push rods (3) are fixedly connected with the top of the sliding plates (4), fixing grooves (6) are formed in the bottom of the sliding plates (4), buffer springs (5) are fixedly connected to the tops of the inner walls of the fixing grooves (6), protection frames (7) are fixedly connected to the bottom ends of the buffer springs (5), and output shafts (8) are rotatably connected between one sides, opposite to the inner walls of the protection frames (7), through.

2. The high-precision worm gear speed reducer with the clearance elimination structure according to claim 1, characterized in that: one end of the output shaft (8) penetrates through the protection frame (7) and extends to the back face of the protection frame (7), one end of the output shaft (8) extends to the back face of the protection frame (7) and is fixedly connected with a protection block (14), and the other end of the output shaft (8) penetrates through the protection frame (7) and the shell (2) in sequence and extends to the front face of the shell (2).

3. The high-precision worm gear speed reducer with the clearance elimination structure according to claim 1, characterized in that: the bottom of protective frame (7) runs through fixed slot (6) and extends to the bottom of fixed slot (6), logical groove (9) with output shaft (8) looks adaptation is seted up in the front of protective frame (7).

4. The high-precision worm gear speed reducer with the clearance elimination structure according to claim 1, characterized in that: the two sides of the inner wall of the shell (2) are fixedly connected with sliding blocks (10) through connecting rods (15) at the bottoms of the sliding plates (4), and the two sides of the protective frame (7) are connected with the inner walls of the sliding blocks (10) in a sliding mode.

5. The high-precision worm gear speed reducer with the clearance elimination structure according to claim 1, characterized in that: the surface of the output shaft (8) is fixedly connected with a worm wheel (11) inside the protective frame (7), and a worm (13) meshed with the worm wheel (11) is rotatably connected between the two sides of the inner wall of the base (1) through a ball bearing (12).

6. The high-precision worm gear speed reducer with the clearance elimination structure according to claim 5, characterized in that: one end of the worm (13) penetrates through the base (1) and extends to one side of the base (1), and an aerator (16) is fixedly connected to one side of the top of the shell (2).