CN110877413A

CN110877413A - Automatic cleaning small cement mixer and cleaning method thereof

Info

Publication number: CN110877413A
Application number: CN201911243940.2A
Authority: CN
Inventors: 王基勇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-03-13

Abstract

The invention discloses an automatic cleaning small cement mixer and a cleaning method of roller gear teeth of the small cement mixer, wherein the automatic cleaning small cement mixer comprises a base, a roller and a transmission mechanism, and the roller is rotatably arranged on the base through the transmission mechanism; the device also comprises an arc-shaped scraping plate and a driving mechanism which are arranged on the base; tooth sockets matched with the gear teeth of the roller are arranged on the inner side surface of the scraper and penetrate through the two sides of the scraper; the tooth grooves of the scraping plates are covered on the gear teeth, and the driving mechanism drives the scraping plates to reciprocate along the axial direction of the roller, so that the tooth grooves of the scraping plates scrape impurities on the gear teeth. The invention reduces the possibility of impurities attached to the gear teeth, improves the protection of the gear teeth and prolongs the service life.

Description

Automatic cleaning small cement mixer and cleaning method thereof

Technical Field

The invention relates to the technical field of construction machinery, in particular to a small-sized cement mixer capable of automatically cleaning.

Background

The cement mixer is one of the most common construction machines in construction sites, and as is well known, the cement mixer is used for mixing cement to replace manual mixing, greatly saving labor force and becoming an instrument necessary for road construction and building construction.

The cement mixer can be divided into large, medium and small according to the specification, and has various advantages, and the specification is selected according to the requirement of a construction site. The small cement mixer has the characteristic of convenient and flexible movement, is most widely applied and is applied to various large construction sites and small construction sites. The small cement mixer comprises a base, a roller and a transmission mechanism, wherein the outer surface of the roller is provided with a circle of gear teeth, the roller is rotatably arranged on the base through the transmission mechanism, and the rotation of the roller is driven by a gear teeth matched peripheral motor or a self-contained motor.

The above-mentioned small cement mixers have a general problem: since the construction site is mostly carried out in the open air, the roller is not provided with the shielding device, and the gear teeth on the roller are directly exposed outside. And because the construction site environment is severe, and in addition, the natural weather such as rain, insolation and the like, the gear teeth are easy to rust and corrode, and the service life is greatly shortened. In addition, in order to prevent the gear teeth from rusting as much as possible, a lubricant such as grease is generally applied to the gear teeth, but no special shielding device is provided, and the grease is easy to adhere dust and small particle impurities under a severe environment. The impurities on the gear teeth can leave pits, scratches and the like on the teeth of the gear teeth, so that the abrasion is accelerated, and the service life is also shortened.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides an automatic cleaning small cement mixer, which is used for reducing the possibility of impurities attached to gear teeth, improving the protection of the gear teeth and prolonging the service life.

The invention provides an automatic cleaning small cement mixer which comprises a base, a roller and a transmission mechanism, wherein the roller is rotatably arranged on the base through the transmission mechanism; the device also comprises an arc-shaped scraping plate and a driving mechanism which are arranged on the base; tooth sockets matched with the gear teeth of the roller are arranged on the inner side surface of the scraper and penetrate through the two sides of the scraper; the tooth grooves of the scraping plates are covered on the gear teeth, and the driving mechanism drives the scraping plates to reciprocate along the axial direction of the roller, so that the tooth grooves of the scraping plates scrape impurities on the gear teeth.

The beneficial effects of this equipment are embodied in:

after the drum stops operating, the external motor is separated from the driving shaft of the drum, so that the drum can rotate freely. Then drive scraper blade reciprocating motion through actuating mechanism for the tooth's socket of scraper blade inserts from the side of the teeth of a cogwheel, because tooth's socket and teeth of a cogwheel adaptation, the gap between the two is minimum after the contact, thereby utilizes the scraper blade to strike off attached earth, cement, fixed granule impurity on the teeth of a cogwheel, and these impurity are struck off the back and are dropped from the cavity of base. The roller is rotated to scrape the other adjacent gear teeth, and all the gear teeth are cleaned in sequence after circulation, so that the cleaning purpose is achieved. The cleaning process is carried out after the roller stops working, so that the construction time is not occupied, the protection to the gear teeth is improved, and the service life is prolonged.

Preferably, the centre of arc of the scraper is located on the axis of the drum.

Preferably, the tooth grooves of the scraper are provided in plurality and the tooth grooves simultaneously cover the adjacent teeth.

The scraper blade reciprocates along the axial direction of the roller, and the groove of the scraper blade can be accurately inserted into the gear teeth. In addition, strike off a plurality of teeth of a cogwheel simultaneously at every turn, improve and strike off efficiency.

Preferably, both ends of the tooth grooves of the scraper are provided with inclined planes for guiding the tooth grooves of the scraper to be inserted from the side surfaces of the gear teeth.

The tooth grooves of the scraper blade are smoothly inserted into the gear teeth through the inclined surface, and the guiding function is achieved.

Preferably, the device further comprises a jacking mechanism which is connected to the base in a sliding manner along the axial direction of the roller and is connected with the outer side face of the scraper blade, and is used for jacking the tooth grooves of the scraper blade against the tooth teeth.

Because the telescopic shaft of flexible motor can only drive the scraper blade translation, can't guarantee that tooth's socket and the contact of teeth of a cogwheel are inseparable, through the tight mechanism in top tightly with tooth's socket top on the teeth of a cogwheel all the time, improve the effect of striking off impurity.

Preferably, the jacking mechanism comprises a spring, a sliding block and a fixed rod, the fixed rod is mounted on the base along the axial direction of the roller, the sliding block is sleeved on the fixed rod, and the spring is compressed between the sliding block and the scraper.

Along with the flexible of flexible motor, the slider will make a round trip to slide on the dead lever simultaneously, and the elasticity of spring is not influenced, tightly pushes up the scraper blade all the time.

Preferably, the two groups of tightening mechanisms are arranged, are positioned at two sides of the scraper and tighten the two sides of the scraper in an oblique supporting mode.

The impurity of scraping off can drop from the centre of base, and the tight mechanism in top is located the base both sides, has avoided getting rid of impurity. And through two sets of tight mechanisms in top for the scraper blade can be tightly on the teeth of a cogwheel, further improve the clean effect.

Preferably, the driving mechanism comprises a telescopic motor, and a cylinder seat of the telescopic motor is fixed on the base and a telescopic shaft of the telescopic motor is fixedly connected with the hanging plate.

Preferably, the driving mechanism further comprises a power supply, a key board, a control circuit board and a rotating motor; the rotary motor is in transmission connection with a driving shaft of the roller, and the control circuit board is respectively electrically connected with the rotary motor, the telescopic motor, the power supply and the key board.

The driving mechanism in the equipment works independently, the power supply and the rotating motor are arranged independently, and the roller is cleaned through the independent driving mechanism after stopping working, is not limited by an external power supply, and is more convenient to clean.

The invention also provides a method for cleaning the gear teeth of the roller of the small cement mixer, which is applied to the small cement mixer with automatic cleaning function and comprises the following steps:

s1: pressing a start button on the key board, and enabling a telescopic shaft of a telescopic motor to extend out by the control circuit board so as to push the scraper to be inserted from the first side surface of the gear teeth and slide out from the second side surface of the gear teeth;

s2: the control circuit board retracts a telescopic shaft of the telescopic motor to pull the scraper to insert from the second side surface of the gear teeth and slide out from the first side surface of the gear teeth, so that the scraper scrapes and cleans a plurality of adjacent gear teeth;

s3: the control circuit board controls the rotating motor to rotate a certain angle, so that a plurality of adjacent gear teeth which are scraped are staggered with the scraper, and the side surfaces of a plurality of adjacent gear teeth at the other adjacent position are opposite to the scraper;

s4: and repeating the steps S1-S3 for multiple times, sequentially cleaning a circle of gear teeth on the roller, and after the cleaning is finished, controlling the telescopic motor to pull back the scraper and separate the scraper from the gear teeth by the control circuit board, so that the cleaning is finished.

The method has the beneficial effects that:

the method realizes one-key cleaning, does not occupy manual labor, presses the start button on the key board after the construction is stopped, and controls the circuit board to automatically clean impurities on all gear teeth, thereby strengthening the maintenance of the equipment and being beneficial to prolonging the service life.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

FIG. 1 is a schematic structural diagram according to a first embodiment;

FIG. 2 is an enlarged view at B in FIG. 1;

FIG. 3 is a schematic view of the blade of FIG. 2 inserted into a gear tooth;

FIG. 4 is a cross-sectional view A-A of FIG. 1;

FIG. 5 is a schematic view showing a structure of a squeegee according to a first embodiment;

FIG. 6 is a top view of FIG. 5;

fig. 7 is a schematic structural diagram of a base according to an embodiment.

In the drawing, a base 1, a roller 2, a scraper 3, a driven rotating shaft 4, a driving shaft 5, a ball seat 6, a driven wheel 7, a driving gear 8, a tooth groove 9, an inclined plane 10, gear teeth 11, a telescopic motor 12, a sliding block 13, a spring 14, a fixed rod 15, a guide rod 16, a first step surface 17, a second step surface 18 and a rotating motor 19.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the invention pertains.

The first embodiment is as follows:

as shown in fig. 1 and 4, the present embodiment provides an automatic cleaning small-sized cement mixer, which includes a base 1, a roller 2, a transmission mechanism, and an arc-shaped scraper 3 and a driving mechanism mounted on the base 1, wherein the roller 2 is rotatably mounted on the base 1 through the transmission mechanism. Drive mechanism is including rotating driven shaft 4 and the drive shaft 5 of installing on base 1, and driven shaft 4 and drive shaft 5 all rotate and base 1 through ball and ball seat 6, and driven shaft 4's both ends are equipped with from driving wheel 7 moreover, and the one end of drive shaft 5 is equipped with and is connected with the transmission of the driving gear 8 and other one end and the external drive motor of the 11 meshing of teeth of a cogwheel.

As shown in fig. 5 and 6, the cross section of the scraper 3 in the present apparatus is arc-shaped, and the inner side surface thereof is provided with tooth grooves 9 adapted to the gear teeth 11 of the drum 2 and the tooth grooves 9 penetrate both sides of the scraper 3. And tooth spaces 9 are provided in plural and plural tooth spaces 9 are simultaneously overlaid on adjacent plural gear teeth 11. The tooth spaces 9 of the scraper 3 scrape impurities on the gear teeth 11 by covering the tooth spaces 9 of the scraper 3 on the gear teeth 11 and driving the scraper 3 to reciprocate along the axial direction of the roller 2 by the driving mechanism. Both ends of the tooth grooves 9 of the scraper 3 are provided with inclined planes 10, the tooth grooves 9 for guiding the scraper 3 are inserted from the side surfaces of the gear teeth 11, and the inclined planes 10 enable the tooth grooves 9 of the scraper 3 to be smoothly inserted into the gear teeth 11, so that the guiding function is achieved.

The scraper 3 is specifically installed as follows:

as shown in fig. 2 to 4, the apparatus further comprises a tightening mechanism slidably connected to the base 1 along the axial direction of the drum 2 and connected to the outer side surface of the scraper 3 for tightening the plurality of teeth grooves 9 of the scraper 3 against the plurality of teeth 11. Specifically, the jacking mechanism comprises a spring 14, a sliding block 13 and a fixed rod 15, wherein the fixed rod 15 is mounted on the base 1 along the axial direction of the roller 2, the sliding block 13 is sleeved on the fixed rod 15, and the spring 14 is compressed between the sliding block 13 and the scraper 3. In addition, the slider 13 is further provided with a guide rod 16, and the spring 14 is sleeved on the guide rod 16 to guide the expansion direction of the spring 14. Along with the extension and contraction of the extension and contraction motor 12, the sliding block 13 can slide back and forth on the fixed rod 15, the elasticity of the spring 14 is not affected, and the scraper 3 is always pressed tightly. The two groups of jacking mechanisms are arranged and are positioned on two sides of the scraper 3 and jack two sides of the scraper 3 tightly in an inclined supporting mode. The impurity of scraping off can drop from the centre of base 1, and the tight mechanism in top is located base 1 both sides, has avoided getting rid of impurity. And through two sets of tight mechanisms in top for scraper blade 3 can be tightly on the teeth of a cogwheel 11 in top, further improve the cleaning effect.

The specific structure of the driving mechanism of the equipment is as follows:

the driving mechanism comprises a telescopic motor 12, wherein a cylinder seat of the telescopic motor 12 is fixed on the base 1, and a telescopic shaft of the telescopic motor 12 is fixedly connected with the hanging plate. The driving mechanism further comprises a power supply, a key board, a control circuit board and a rotating motor 19, wherein the power supply, the key board and the control circuit board are drawn in the figure. The rotating motor 19 is in transmission connection with the driving shaft 5 of the roller 2, and the control circuit board is respectively and electrically connected with the rotating motor 19, the telescopic motor 12, the power supply and the key board. The independent work of actuating mechanism in this equipment sets up power and rotating electrical machines alone, clears up through independent actuating mechanism after 2 stop work of cylinder, does not receive external power source's restriction, and it is more convenient to clear up.

The principle of impurity removal of the device is as follows:

tooth's socket 9 and the adaptation of teeth of a cogwheel 11 of scraper blade 3, the gap between the back two is minimum in tooth's socket 9 inserts the teeth of a cogwheel 11, and in scraper blade 3 moved the in-process towards cylinder 2 both ends, scraper blade 3 strikes off impurity such as adnexed earth, cement, fixed granule on the teeth of a cogwheel 11, and these impurity are scraped the back and are dropped from the cavity of base 1. After scraping, the scraper 3 is separated from the gear teeth 11, the roller 2 rotates for a certain angle, the scraper 3 scrapes again, and then the whole roller 2 is cleared of one circle of gear teeth 11. After the cleaning, five impurities on the outer surface of the gear teeth 11 are better meshed with the driving gear 8 on the driving shaft, so that the protection on the gear teeth 11 is improved, and the service life is prolonged.

As shown in fig. 7, the key sheet of the present apparatus is further provided with a forcible stop button, and the button is pressed when the cleaning operation needs to be interrupted. Still be equipped with the button that sets up clearance number of times or time on the keypad, further improve the clearance effect through the mode of clearance many times.

In this embodiment, the driven rotating shaft 4, the driving shaft 5, the rotating motor and the telescopic motor 12 are all located on the first step surfaces 17 on two sides of the base 1, and the two sets of tightening mechanisms are located on the second step surfaces 18 on the other two sides of the base 1.

Example two:

the embodiment provides a method for cleaning gear teeth of a roller of a small cement mixer, which is applied to the small cement mixer with automatic cleaning function in the first embodiment and comprises the following steps:

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention, and they should be construed as being included in the following claims and description.

Claims

1. A small-sized cement mixer capable of automatically cleaning comprises a base, a roller and a transmission mechanism, wherein the roller is rotatably arranged on the base through the transmission mechanism; the method is characterized in that: the device also comprises an arc-shaped scraping plate and a driving mechanism which are arranged on the base; tooth sockets matched with the gear teeth of the roller are arranged on the inner side surface of the scraper and penetrate through the two sides of the scraper; the tooth grooves of the scraping plates are covered on the gear teeth, and the driving mechanism drives the scraping plates to reciprocate along the axial direction of the roller, so that the tooth grooves of the scraping plates scrape impurities on the gear teeth.

2. An automatically cleaning compact cement mixer according to claim 1, characterized in that: the arc center of the scraper is positioned on the axis of the roller.

3. An automatically cleaning compact cement mixer according to claim 1, characterized in that: the tooth grooves of the scraper are provided with a plurality of tooth grooves which simultaneously cover the adjacent tooth teeth.

4. An automatically cleaning compact cement mixer according to claim 3, characterized in that: both ends of the tooth grooves of the scraper are provided with inclined planes for guiding the tooth grooves of the scraper to be inserted from the side surfaces of the gear teeth.

5. An automatically cleaning compact cement mixer according to claim 3, characterized in that: the device further comprises a jacking mechanism, wherein the jacking mechanism is connected to the base in a sliding mode along the axial direction of the roller and is connected with the outer side face of the scraper blade, and the jacking mechanism is used for jacking a plurality of tooth grooves of the scraper blade to a plurality of gear teeth.

6. An automatically cleaning compact cement mixer as claimed in claim 5, wherein: the jacking mechanism comprises a spring, a sliding block and a fixed rod, the fixed rod is arranged on the base along the axial direction of the roller, the sliding block is sleeved on the fixed rod, and the spring is compressed between the sliding block and the scraper.

7. An automatically cleaning compact cement mixer according to claim 6, characterized in that: the two groups of jacking mechanisms are arranged on two sides of the scraper and jack the two sides of the scraper tightly in an inclined supporting mode.

8. An automatically cleaning compact cement mixer according to claim 7, characterized in that: the driving mechanism comprises a telescopic motor, and a cylinder seat of the telescopic motor is fixed on the base and a telescopic shaft of the telescopic motor is fixedly connected with the hanging plate.

9. An automatically cleaning compact cement mixer according to claim 8, characterized in that: the driving mechanism also comprises a power supply, a key board, a control circuit board and a rotating motor; the rotary motor is in transmission connection with a driving shaft of the roller, and the control circuit board is respectively electrically connected with the rotary motor, the telescopic motor, the power supply and the key board.

10. A method for cleaning the teeth of a roller of a small cement mixer is characterized by comprising the following steps: the small-sized cement mixer capable of automatically cleaning as claimed in claim 9, comprising the steps of: