CN212764087U

CN212764087U - Cement concrete mixer

Info

Publication number: CN212764087U
Application number: CN202020694042.0U
Authority: CN
Inventors: 童贻伟; 袁杨眉; 胡刚
Original assignee: Hubei Heli Jiusheng Concrete Co ltd
Current assignee: Hubei Heli Jiusheng Concrete Co ltd
Priority date: 2020-04-29
Filing date: 2020-04-29
Publication date: 2021-03-23
Anticipated expiration: 2030-04-29

Abstract

The utility model relates to a cement concrete mixer, the utility model relates to a concrete mixing technical field has solved fixed stirring mode, and there is the dead angle in the stirring, leads to the inhomogeneous insufficient problem of part material mixing easily, which comprises a bracket, the churn, the feed inlet, the churn internal fixation has fixed pipe, and the week side of fixed pipe is fixed with stirring vane, and the fixed intraductal flexible center pin that is provided with, the week side elastic connection of center pin has a plurality of additional blades, forms the accommodation clearance that is used for holding additional blade between fixed pipe and the center pin, and a plurality of expansion grooves have been seted up to week side of fixed pipe, are provided with actuating mechanism between support and the churn. The utility model discloses a stirring scope in the churn is enlarged in the effect of a plurality of additional blade cooperation stirring vane, effectively reduces the stirring dead angle for the broken degree of material is higher, stirs more evenly, and stirring efficiency is higher.

Description

Cement concrete mixer

Technical Field

The utility model belongs to the technical field of the concrete mixing technique and specifically relates to a cement concrete mixer is related to.

Background

A concrete mixer is a machine for mixing and stirring cement, gravel aggregate and water into a concrete mixture. The device mainly comprises a mixing drum, a feeding and discharging mechanism, a water supply system, a prime motor, a driving mechanism, a frame, a supporting device and the like. The inner wall of the mixing drum of the gravity concrete mixer is provided with mixing blades which are arranged in the radial direction. When the stirring device works, the stirring cylinder rotates around the horizontal axis, the materials added into the stirring cylinder are lifted to a certain height by the blades and fall down by virtue of self weight, and the effect of uniform stirring is achieved by the repeated motion.

At present, chinese patent with the publication number of grant CN207044398U provides a from formula cement concrete mixer that falls, including the base, the base bottom is provided with the supporting leg, the base upper surface is provided with support, motor and motor control case, and the support is kept away from base one end and is provided with the churn, and the discharge gate that is used for the material loading is offered to churn one end, and motor control case surface are provided with the protective housing, and protective housing fixed surface is connected with lubricating arrangement.

In the above-mentioned patent, owing to adopt fixed stirring mode, there is the dead angle in the stirring, leads to partial material stirring inhomogeneous not abundant easily for stirring time extension, stirring speed is slow, the not high scheduling problem of material stirring quality.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a cement concrete mixer with enlarged mixing range, high mixing speed, high mixing efficiency and good mixing quality.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a cement concrete mixer, include the support, rotate set up in churn on the support, set up in the feed inlet of churn one end, be fixed with fixed pipe along its axis direction in the churn, the week side of fixed pipe is fixed with stirring vane, the flexible center pin that is provided with in the fixed pipe, week side elastic connection of center pin has a plurality of additional blades, fixed pipe with form between the center pin and be used for holding the accommodation gap of additional blade, the expansion groove of a plurality of and a plurality of additional blade one-to-ones is seted up in week side of fixed pipe, the support with be provided with between the churn and be used for the drive churn pivoted actuating mechanism.

By adopting the technical scheme, materials are put into the mixing drum through the feeding hole, the central shaft is pushed, the plurality of additional blades are driven to respectively correspond to the plurality of expansion slots, and meanwhile, the additional blades extend into the expansion slots and are popped out, so that the additional blades are transferred to the outside of the fixed pipe from the inside of the accommodating gap; the churn rotates the in-process, drives the material and rolls in the churn, closes additional blade through stirring vane and stirs the material simultaneously, makes the material stirring more abundant, stirs the back that finishes, washes additional blade, and the counter-rotating center pin, additional blade receive the extrusion of arc piece, makes additional blade accomodate to holding in the clearance, realizes accomodating of additional blade, the utility model discloses a plurality of additional blade cooperation stirring vane effect enlarges the stirring scope in the churn, effectively reduces the stirring dead angle, makes the broken degree of material higher, stirs more evenly, and stirring efficiency is higher.

The present invention may be further configured in a preferred embodiment as: the plurality of additional blades are arranged at equal intervals along the spiral direction of the stirring blade, and the spiral extending path of the plurality of additional blades and the spiral extending path of the stirring blade are symmetrically arranged along the axial direction of the central shaft.

Through adopting above-mentioned technical scheme, a plurality of additional blades that arrange with this mode have reduced the influence to the stirring vane stirring, and all-round stirring in the cooperation stirring vane realization churn, stirring effect is better.

The present invention may be further configured in a preferred embodiment as: and an elastic sheet is fixedly connected between the additional blade and the central shaft.

By adopting the technical scheme, when the additional blade slides into the expansion slot, the elastic force of the elastic sheet enables the additional blade to pop out of the accommodating gap, and the operation is simple and convenient.

The present invention may be further configured in a preferred embodiment as: and the peripheral side of the central shaft is provided with a containing groove for containing the elastic sheet.

Through adopting above-mentioned technical scheme, when additional blade accomodates in the accommodation gap, utilize the holding tank to hold the shell fragment, reduce the shell fragment to additional blade accomodate the influence.

The present invention may be further configured in a preferred embodiment as: and one end of the mixing drum, which is far away from the feed inlet, is rotatably provided with a handle which is coaxially and fixedly connected with the central shaft.

Through adopting above-mentioned technical scheme, rotate the handle and drive the center pin and rotate, easy operation is convenient.

The present invention may be further configured in a preferred embodiment as: the driving mechanism comprises a driving wheel arranged at one end of the support and a transmission gear coaxially and fixedly connected with the driving wheel, an annular rack in meshing transmission with the transmission gear is arranged on the outer side wall of the mixing drum, and a driving motor for driving the driving wheel to rotate is arranged at one end, where the mixing drum is located, of the support.

By adopting the technical scheme, the driving motor drives the driving wheel and the transmission gear to rotate, the transmission gear rotates to engage with the stirring drum provided with the annular rack to rotate, and the function of stirring materials by the stirring drum is realized.

The present invention may be further configured in a preferred embodiment as: two wheel shafts are erected at one end, where the mixing drum is located, of the support along the axis direction of the mixing drum, and idler wheels tightly attached to the outer side wall of the mixing drum penetrate through one end, away from the transmission gear, of each wheel shaft.

Through adopting above-mentioned technical scheme, the gyro wheel is used for supporting the churn, and the churn rotates the in-process, drives gyro wheel antiport to do not influence the stirring work of churn when the gyro wheel is supporting the churn.

The utility model discloses can further dispose in a preferred example: and the outer side wall of the mixing drum is provided with a guide rail which is matched with the roller in a rolling way along the circumferential direction.

Through adopting above-mentioned technical scheme, the rotation position of gyro wheel can be restricted to the guide rail, avoids the gyro wheel off tracking to lead to the churn to take place to incline on the shaft, influences the stirring effect of churn.

To sum up, the utility model discloses a following at least one kind benefits technological effect:

1. in the rotating process of the mixing drum, the mixing blade realizes a basic mixing function, the mixing range is expanded by utilizing the additional blade, the mixing force is increased, the mixing effect in the mixing drum is better, the mixing dead angle is reduced, and the mixing efficiency is higher;

2. the accommodating gap is convenient for accommodating the additional blade, the expansion and the retraction of the additional blade are convenient to realize, and the influence of the additional blade on the stirring blade is reduced.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a cross-sectional view taken along line A-A of FIG. 1;

fig. 3 is a partially enlarged schematic view of a portion B in fig. 2.

Reference numerals: 1. a support; 2. a mixing drum; 3. a feed inlet; 4. a fixed tube; 5. a stirring blade; 6. a central shaft; 7. an additional blade; 8. a receiving gap; 9. an expansion slot; 10. a spring plate; 11. accommodating grooves; 12. a handle; 13. a driving wheel; 14. a transmission gear; 15. an annular rack; 16. a drive motor; 17. a wheel axle; 18. a roller; 19. a guide rail.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, for the utility model discloses a cement concrete mixer, which comprises a bracket 1, rotate the churn 2 that sets up on support 1, set up in the feed inlet 3 of 2 one ends of churn, be fixed with fixed pipe 4 along its axis direction in the churn 2, fixed pipe 4 is close to the one end of feed inlet 3 and is fixed with the internal connection through support 1 and churn 2, the one end that feed inlet 3 was kept away from to fixed pipe 4 is fixed with the one end inner wall lug connection that feed inlet 3 was kept away from to churn 2, the week side of fixed pipe 4 is fixed with stirring vane 5, stirring vane 5 extends the setting along the axis direction spiral of fixed pipe 4. The feed inlet 3 is convenient for drop into the material in 2 to the churn, and the stirring in-process drives fixed pipe 4 and stirring vane 5 through rotating churn 2 and rotates, realizes the stirring of material.

Referring to fig. 2, a central shaft 6 is coaxially and telescopically arranged in the fixed pipe 4, two ends of the central shaft 6 are arranged to penetrate through the fixed pipe 4, and one end, far away from the feed inlet 3, of the central shaft 6 penetrates through the side wall of the mixing drum 2 through a coupler and is coaxially fixed with a handle 12. The central shaft 6 can stretch and retract back and forth in the fixed tube 4 along the axis of the fixed tube 4 by pushing and pulling the handle 12.

Referring to fig. 3, a plurality of additional blades 7 are elastically connected to the peripheral side of the central shaft 6, an accommodating gap 8 for accommodating the additional blades 7 is formed between the fixed tube 4 and the central shaft 6, the additional blades 7 are arranged at equal intervals along the spiral direction of the stirring blades 5, the spiral extending paths of the additional blades 7 and the spiral extending paths of the stirring blades 5 are symmetrically arranged along the axis direction of the central shaft 6, a plurality of expansion slots 9 corresponding to the additional blades 7 one to one are formed in the peripheral side of the fixed tube 4, a plurality of wedge blocks corresponding to the expansion slots 9 one to one are fixed to the inner wall of the fixed tube 4, the wedge blocks are located at one ends, far away from the handle 12, of the expansion slots 9, and chamfers matched with the inclined surfaces of the wedge blocks are formed at one ends, close to the wedge blocks, of the. In the practical application process, promote handle 12, drive center pin 6 and slide towards the one end that feed inlet 3 was located, a plurality of additional blade 7 of center pin 6 week side receive the thrust of handle 12 simultaneously, along the inclined plane of wedge slowly outstanding expansion tank 9, when center pin 6 pushed to the limit, a plurality of additional blade 7 are the expansion state in fixed pipe 4 week side, a plurality of additional blade 7 with stirring vane 5 symmetry have reduced the influence to stirring blade 5 stirring, cooperate stirring blade 5 to realize all-round stirring in the churn 2, the stirring effect is better.

An elastic sheet 10 is fixedly connected between the additional blade 7 and the central shaft 6, and an accommodating groove 11 for accommodating the elastic sheet 10 is formed on the peripheral side of the central shaft 6. When additional blade 7 slided to the expansion groove 9 in, the elasticity of shell fragment 10 made additional blade 7 pop out accommodation gap 8, and is simple and convenient, and when additional blade 7 was accomodate to accommodation gap 8 in, utilize holding tank 11 to hold shell fragment 10, reduce the effect of accomodating of shell fragment 10 to additional blade 7.

Referring to fig. 1, a driving mechanism for driving the mixing drum 2 to rotate is arranged between the support 1 and the mixing drum 2, the driving mechanism includes a driving wheel 13 arranged at one end of the support 1 and a transmission gear 14 coaxially and fixedly connected with the driving wheel 13, an annular rack 15 meshed with the transmission gear 14 for transmission is arranged on the outer side wall of the mixing drum 2, and a driving motor 16 for driving the driving wheel 13 to rotate is arranged at one end of the support 1 where the mixing drum 2 is located. The driving motor 16 drives the driving wheel 13 and the transmission gear 14 to rotate, and the rotation of the transmission gear 14 is meshed with and drives the stirring drum 2 provided with the annular rack 15 to rotate, so that the function of stirring materials by the stirring drum 2 is realized.

Two wheel shafts 17 are erected at one end of the support 1 where the mixing drum 2 is located along the axis direction of the mixing drum 2, and a roller 18 tightly attached to the outer side wall of the mixing drum 2 penetrates through one end, away from the transmission gear 14, of each wheel shaft 17. The roller 18 is used for supporting the mixing drum 2, and the roller 18 is driven to rotate reversely in the rotating process of the mixing drum 2, so that the roller 18 does not influence the mixing work of the mixing drum 2 while supporting the mixing drum 2.

The outer side wall of the mixing drum 2 is provided with a guide rail which is matched with the roller 18 in a rolling way along the circumferential direction. The guide rail 19 can limit the rotation position of the roller 18, and prevent the roller 18 from deviating on the wheel shaft 17 to cause the stirring drum 2 to incline and influence the stirring effect of the stirring drum 2.

The implementation principle of the embodiment is as follows:

in the working process, the materials are put into the mixing drum 2 through the feeding hole 3, the handle 12 is pushed, the elastic force of the elastic sheet 10 is combined, the additional blades 7 are popped out, the mixing shaft is pulled back through the driving motor 16, the driving wheel and the ring gear, the mixing drum 2 is driven to rotate, the materials in the mixing drum 2 are mixed by the additional blades 7 and the mixing blades 5, after the mixing is finished, the interior of the mixing drum 2 is cleaned, the mixing shaft is pulled back, the additional blades 7 are driven to slide into the accommodating gap 8 along the expansion groove 9, and the additional blades 7 are stored.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. A cement concrete mixer comprises a bracket (1), a mixing drum (2) rotationally arranged on the bracket (1), and a feed inlet (3) arranged at one end of the mixing drum (2), the method is characterized in that: a fixed pipe (4) is fixed in the mixing drum (2) along the axial direction, stirring blades (5) are fixed on the peripheral side of the fixed pipe (4), a central shaft (6) is arranged in the fixed pipe (4) in a telescopic manner, a plurality of additional blades (7) are elastically connected on the peripheral side of the central shaft (6), an accommodating gap (8) for accommodating the additional blade (7) is formed between the fixed pipe (4) and the central shaft (6), a plurality of expansion slots (9) which are in one-to-one correspondence with the plurality of additional blades (7) are arranged on the peripheral side of the fixed pipe (4), and a driving mechanism for driving the mixing drum (2) to rotate is arranged between the support (1) and the mixing drum (2).

2. A cement concrete mixer according to claim 1, wherein a plurality of said additional blades (7) are arranged at equal intervals in the direction of the helix of said mixing blade (5), and the helical extension of said additional blades (7) and the helical extension of said mixing blade (5) are arranged symmetrically in the direction of the axis of said central shaft (6).

3. A cement concrete mixer according to claim 1, characterized in that a spring plate (10) is fixedly connected between said additional blade (7) and said central shaft (6).

4. A cement concrete mixer according to claim 3, characterized in that the central shaft (6) has accommodating grooves (11) formed around its periphery for accommodating said resilient tabs (10).

5. A cement concrete mixer according to claim 4, characterized in that the end of the mixing drum (2) remote from the inlet opening (3) is rotatably provided with a handle (12) fixedly connected coaxially to the central shaft (6).

6. A cement concrete mixer according to claim 1, wherein said driving mechanism comprises a driving wheel (13) disposed at one end of said frame (1) and a transmission gear (14) coaxially and fixedly connected with said driving wheel (13), an annular rack (15) meshed with said transmission gear (14) is disposed on the outer side wall of said mixing drum (2), and a driving motor (16) for driving said driving wheel (13) to rotate is disposed at the end of said frame (1) where said mixing drum (2) is located.

7. A cement concrete mixer according to claim 6, characterized in that the end of the stand (1) at the mixing drum (2) is provided with two axles (17) along the axial direction of the mixing drum (2), and the end of the axle (17) away from the transmission gear (14) is provided with a roller (18) closely attached to the outer side wall of the mixing drum (2).

8. A cement concrete mixer according to claim 7, characterized in that the outer side wall of the mixing drum (2) is provided with guide rails (19) in a circumferential direction for rolling engagement with said rollers (18).