CN219866166U

CN219866166U - Special speed reducer for spiral pushing

Info

Publication number: CN219866166U
Application number: CN202321251966.3U
Authority: CN
Inventors: 陈日标
Original assignee: Zhejiang Xincheng Reducer Technology Co ltd
Current assignee: Zhejiang Xincheng Reducer Technology Co ltd
Priority date: 2023-05-19
Filing date: 2023-05-19
Publication date: 2023-10-20
Anticipated expiration: 2033-05-19

Abstract

The utility model discloses a special speed reducer for spiral pushing, which comprises a shell, wherein a plurality of transmission shafts are arranged on the shell, and each transmission shaft comprises an input shaft, a speed reducing shaft and an output shaft; the input shaft is sleeved with a first reduction gear, the reduction shaft is sleeved with a second reduction gear and a third reduction gear, the output shaft is sleeved with a fourth reduction gear, the first reduction gear is meshed with the second reduction gear, and the third reduction gear is meshed with the fourth reduction gear, so that step-by-step power transmission is completed; the output shaft is a hollow shaft, and a trapezoidal thread sleeve is fixedly arranged on the inner wall of the hollow shaft. The utility model provides a special speed reducer for spiral pushing, which can be specially used for an industrial production scene of spiral pushing and transporting materials.

Description

Special speed reducer for spiral pushing

Technical Field

The utility model relates to the technical field of speed reducers, in particular to a speed reducer special for spiral pushing.

Background

With the increasing expansion of the modern industrial production scale, the related production equipment is moving towards automation, and the speed reducer is an independent component consisting of gear transmission, worm transmission and gear-worm transmission in a rigid shell, and is commonly used as a speed reduction transmission device between a driving element and a working machine. The function of matching rotational speed and transmitting torque between a prime motor and a working machine or an actuating mechanism is widely applied to modern machines. In the existing industrial production, the spiral pushing of materials is increasingly widely applied to mineral products, feeds, grain and oil and construction industry, and the spiral conveying materials have the advantages of convenience in installation and disassembly, long service life and the like, and are not easy to cause material blockage or blockage, reversible conveying direction and the like during conveying. However, currently, a speed reducer dedicated to spiral pushing is available on the market, thereby causing inconvenience in industrial production.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model aims to provide a speed reducer special for spiral pushing, which is special for an industrial production scene of spiral pushing.

The technical aim of the utility model is realized by the following technical scheme: the utility model provides a special speed reducer of spiral propelling movement, includes casing, its characterized in that: the shell is provided with a plurality of transmission shafts, and each transmission shaft comprises an input shaft, a speed reduction shaft and an output shaft;

the input shaft is sleeved with a first reduction gear, the reduction shaft is sleeved with a second reduction gear and a third reduction gear, the output shaft is sleeved with a fourth reduction gear, the first reduction gear is meshed with the second reduction gear, and the third reduction gear is meshed with the fourth reduction gear, so that step-by-step power transmission is completed; the output shaft is a hollow shaft, and a trapezoidal thread sleeve is fixedly arranged on the inner wall of the hollow shaft.

The present utility model may be further configured in a preferred example to: the output shaft is fixedly connected with the trapezoid thread sleeve through a plurality of pins.

The present utility model may be further configured in a preferred example to: the pin positions are uniformly distributed around the circumference.

The present utility model may be further configured in a preferred example to: and an encoder for measuring the speed is arranged on the speed reducing shaft.

The present utility model may be further configured in a preferred example to: the two ends of the box body in the radial direction corresponding to the output shaft are also provided with support columns.

The present utility model may be further configured in a preferred example to: the box is still fixedly connected with push rod fixed cover, push rod fixed cover be used for fixed with trapezoidal thread bush is connected in order to realize the push rod of screw conveying.

The present utility model may be further configured in a preferred example to: the output shaft is in rotary connection with the box body through a tapered roller bearing.

The present utility model may be further configured in a preferred example to: the speed reducing shaft and the input shaft are connected with the box body through angular contact bearings.

Compared with the prior art, the embodiment of the utility model has the beneficial effects that:

the embodiment of the utility model provides a special speed reducer for spiral pushing, which is special for an industrial production scene of spiral pushing.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the technical solutions referred to in the embodiments of the present utility model will be briefly described below with respect to the accompanying drawings, and it is obvious that the drawings described in the present specification are only some possible embodiments of the present utility model, and other drawings identical or similar to the technical solutions of the present utility model can be obtained according to the following drawings without any inventive effort for those skilled in the art.

FIG. 1 is a cross-sectional view of the present utility model;

fig. 2 is an external axial view of the present utility model.

Reference numerals: 1. a housing; 21. an input shaft; 22. a reduction shaft; 23. an output shaft; 31. a first reduction gear; 32. a second reduction gear; 33. a third reduction gear; 34. a fourth reduction gear; 4. a trapezoidal thread sleeve; 5. a pin; 6. an encoder; 7. a support column; 8. a push rod fixing sleeve; 9. tapered roller bearings; 10. angular contact bearings.

Detailed Description

The technical solutions described in the present utility model will be clearly and completely described below with reference to the accompanying drawings and specific embodiments, and it is obvious that the embodiments described in the present specification are only some of the possible technical solutions of the present utility model, and other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without any inventive effort should be considered as falling within the scope of protection of the present utility model.

In addition, the technical solutions of the embodiments of the present utility model may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present utility model.

As shown in fig. 1-2, a special speed reducer for spiral pushing comprises a shell 1, wherein a plurality of transmission shafts are arranged on the shell 1, each transmission shaft mainly comprises an input shaft 21 for transmitting input power, a speed reducing shaft 22 and an output shaft 23, a first speed reducing gear 31 is sleeved on the input shaft 21, a second speed reducing secondary wheel and a third speed reducing gear 33 are sleeved on the speed reducing shaft 22, a fourth speed reducing gear 34 is sleeved on the output shaft 23, the first speed reducing gear 31 is meshed with the second speed reducing gear 32, so that power is transmitted from the input shaft 21 to the speed reducing shaft 22, and the third speed reducing gear 33 is meshed with the fourth speed reducing gear 34, so that power is transmitted from the speed reducing shaft 22 to the output shaft 23. The output shaft 23 is a hollow shaft so as to facilitate heat dissipation, and on the other hand, the inner wall of the output shaft 23 is required to be fixedly provided with the trapezoidal thread sleeve 4, so that the technical scheme of spiral pushing is completed, and compared with square threads, the trapezoidal threads are high in strength and good in centering. In the utility model, the trapezoidal thread sleeve 4 is connected with an external push rod, and after power is transmitted to the output shaft 23 step by step, the output shaft 23 rotates and simultaneously the trapezoidal thread sleeve 4 synchronously rotates, so that the external push rod is driven, and the purpose of pushing threads is realized.

Furthermore, the trapezoidal thread sleeve 4 is fixedly connected with the output shaft 23 through the pins 5, and in this way, the connection cost is reduced, and the efficiency is high. The positions of the pins 5 are uniformly distributed around the circumference, so that the fixed acting force is more uniform, and the hidden trouble that the acting force is concentrated at one position or at one side to influence the stable work is avoided.

In some embodiments, the speed reduction shaft 22 has an encoder 6 mounted thereon for measuring the speed. In the actual running process of the speed reducer, the detection of the speed is crucial, and the detection of the speed is realized by installing the encoder 6 on the speed reducing shaft 22.

In the actual working process of the speed reducer, in order to reduce the influence on spiral pushing caused by shaking of the speed reducer during spiral pushing, support columns 7 are symmetrically arranged on the radial direction of the speed reducer body corresponding to the output shaft 23, namely, on a plane perpendicular to the output shaft 23, corresponding to the output shaft 23, so that the center of gravity is stabilized, the vibration amplitude is reduced, and the working stability of the speed reducer is improved.

Preferably, the box of speed reducer still fixedly connected with push rod fixed sleeve 8, in the scene that needs the spiral propelling movement, thereby the trapezoidal thread bush 4 of speed reducer output shaft 23 needs to be connected with outside push rod and realize the spiral propelling movement, but the vibrations that the during operation of speed reducer produced in addition to the push rod often are long and thin shape and thereby lead to the push rod to rock unstably easily, consequently set up push rod fixed sleeve 8 after, can fix the push rod, and because push rod fixed sleeve 8 fixed mounting is on the speed reducer box, its stability can obtain effectual assurance, thereby make the stability of push rod at the during operation also can obtain effectual improvement.

Further, the output shaft 23 is in rotational connection with the housing via tapered roller bearings 9.

By the arrangement of the tapered roller bearing 9, the compound load of the output shaft 23, namely the compound generated by the simultaneous action of the axial direction and the radial direction, can be borne, in addition, a proper angle contact angle can be selected according to the actual situation, so that the larger the angle contact angle is, the larger the load can be borne, and the situation that the bearing is broken when the larger torque is transmitted is avoided

Further, the reduction shaft 22 and the input shaft 21 are connected to the case via the angular contact bearing 10.

By providing the angular contact bearing 10, both radial and axial loads can be accommodated and operation at higher rotational speeds is possible. Meanwhile, the double-connection installation mode is adopted, so that the outer rings of a pair of bearings are opposite, namely, the wide end face is opposite to the wide end face, and the narrow end face is opposite to the narrow end face, thus, additional axial force can be avoided, and the shaft or the shell can be limited in the axial clearance range in two directions.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and additions may be made to those skilled in the art without departing from the method of the present utility model, which modifications and additions are also to be considered as within the scope of the present utility model.

Claims

1. The utility model provides a special speed reducer of spiral propelling movement, includes casing (1), its characterized in that: a plurality of transmission shafts are arranged on the shell (1), and each transmission shaft comprises an input shaft (21), a speed reduction shaft (22) and an output shaft (23);

the input shaft (21) is sleeved with a first reduction gear (31), the reduction shaft (22) is sleeved with a second reduction gear (32) and a third reduction gear (33), the output shaft (23) is sleeved with a fourth reduction gear (34), the first reduction gear (31) is meshed with the second reduction gear (32), and the third reduction gear (33) is meshed with the fourth reduction gear (34), so that step-by-step power transmission is completed; the output shaft (23) is a hollow shaft, and a trapezoidal thread sleeve (4) is fixedly arranged on the inner wall of the hollow shaft.

2. The screw pushing dedicated speed reducer according to claim 1, wherein: the output shaft (23) is fixedly connected with the trapezoid thread sleeve (4) through a plurality of pins (5).

3. The screw pushing dedicated speed reducer according to claim 2, wherein: the pins (5) are uniformly distributed around the circumference.

4. A special speed reducer for spiral pushing according to claim 3, characterized in that: an encoder (6) for measuring the speed is arranged on the speed reducing shaft (22).

5. The special speed reducer for spiral pushing according to claim 4, wherein: the two ends of the box body, which correspond to the radial direction of the output shaft (23), are also provided with support columns (7).

6. The special speed reducer for spiral pushing according to claim 5, wherein: the box is also fixedly connected with a push rod fixing sleeve (8), and the push rod fixing sleeve (8) is used for fixing a push rod which is connected with the trapezoid thread sleeve (4) to realize spiral conveying.

7. The special speed reducer for spiral pushing according to claim 6, wherein: the output shaft (23) is in rotary connection with the box body through a tapered roller bearing (9).

8. The special speed reducer for spiral pushing according to claim 7, wherein: the speed reducing shaft (22) and the input shaft (21) are connected with the box body through angular contact bearings (10).