Cement mortar mixer
Through the cement glue sand mixer designed with eccentric rotation, the problem of incomplete stirring in the existing technology is solved, and the uniform stirring of cement glue sand and the improvement of strength inspection accuracy is achieved, ensuring sufficient stirring of cement glue sand on the inner wall of the mixing barrel.
Patent Information
- Application Number
- CN202420455495.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-11
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-03-11
AI Technical Summary
The existing planetary cement sand mixers have large rotation radius and narrow design width of the mixer rod, which makes the cement sand on the inner wall of the mixing barrel unable to be fully stirred, and there is a problem of incomplete stirring.
The design of an eccentric rotating mixer is used to transmit the motor torque to the mixing shaft and the driving wheel through a commutator, which drives the mixing barrel to rotate eccentrically, so that the mixing barrel and the mixing shaft move relative to each other, ensuring that the cement sand and the mixing shaft on the inner wall of the mixing barrel are sufficient. Contact and stir evenly.
The uniformity of cement glue sand and the accuracy of strength inspection are improved, ensuring that the cement glue sand on the inner wall of the mixing barrel is fully stirred, and the preparation quality of cement glue sand is improved.
Smart Images
Figure CN222201082U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cement testing equipment, and in particular to a cement mortar mixer. Background Art
[0002] According to the relevant provisions of GB / T-17671-2021 "Test Method for Cement Mortar Strength", the standard test method for cement mortar strength is to mix the cement to be tested with water and standard sand in a certain proportion to prepare cement mortar, then cast it into a 40*40*160 prism, and finally perform compression and flexural tests on the prism.
[0003] At present, the industry generally uses planetary cement mortar mixers to prepare cement mortar. This mixer has a planetary mixer head, which can revolve around the motor axis as the center of the circle and rotate around the mixing axis, so as to stir the cement mortar in the mixing barrel in all directions. However, the mixer head of this cement mortar mixer has a large rotation radius. In order to avoid collision and interference with the inner wall of the mixing barrel during the revolution, the design width of its stirring rod is narrow, so there is a large gap between the stirring rod and the inner wall of the mixing barrel, which results in the cement mortar adhering to the inner wall of the mixing barrel not being fully stirred.
[0004] According to the above-mentioned related technologies, the existing planetary cement mortar mixer has the technical defect of incomplete mixing. Utility Model Content
[0005] In order to further improve the uniformity of cement mortar prepared by a cement mortar mixer and improve the accuracy of cement mortar strength testing, the present application provides a cement mortar mixer.
[0006] The present application provides a cement mortar mixer adopts the following technical solution:
[0007] A cement mortar mixer comprises a base, a chassis fixed on the base, a motor arranged on the chassis, a commutator arranged on the chassis, a stirring shaft connected to the commutator and a stirring barrel arranged on the base; the base comprises a bottom plate, a driving wheel rotatably connected in the bottom plate, a driven wheel rotatably connected in the bottom plate and a rotating shaft fixed on the driven wheel; one end of the rotating shaft away from the driven wheel is slidably connected to the bottom of the stirring barrel, the driving wheel is chain-drivenly connected to the driven wheel and is connected to the commutator.
[0008] By adopting the above technical scheme, the chassis supports other parts of the structure, the motor can play a driving role, the commutator can transmit the motor torque to the mixing shaft and the driving wheel respectively, and the driven wheel can drive the mixing barrel to rotate eccentrically under the driving action of the driving wheel, thereby replacing the planetary mixer head to realize the relative rotation between the mixing barrel and the mixing shaft. Due to the relative movement of the mixing barrel and the ground, the cement mortar adhered to the inner wall of the mixing barrel will fully contact with the mixing shaft during the rotation and be evenly mixed, thereby achieving the purpose of the invention of further improving the uniformity of cement mortar prepared by the cement mortar mixer and improving the accuracy of cement mortar strength testing.
[0009] Optionally, the mixing barrel includes a barrel body, a limiting sleeve sleeved on the barrel body, an eccentric plate fixedly connected to the limiting sleeve, and a sliding sleeve provided on the eccentric plate, wherein the sliding sleeve is slidably connected to the rotating shaft.
[0010] By adopting the above technical solution, the barrel body is a container for cement mortar, the limit sleeve supports the barrel body, the eccentric plate supports the limit sleeve and can drive the limit sleeve and the barrel body to rotate eccentrically, and the sliding sleeve plays the role of limit installation and height adjustment.
[0011] Optionally, a fastening bolt is passed through the side wall of the sliding sleeve, and the fastening bolt is threadably matched with the sliding sleeve and abuts against the side wall of the rotating shaft.
[0012] By adopting the above technical solution, the fastening bolts can increase the stability of the sliding connection structure between the sliding sleeve and the rotating shaft.
[0013] Optionally, a handle is fixedly provided on the side wall of the barrel.
[0014] By adopting the above technical solution, the handle installed on the side wall of the barrel body can facilitate personnel to move the barrel body out of the limiting sleeve.
[0015] Optionally, a plurality of supporting legs are provided on the lower surface of the base plate.
[0016] By adopting the above technical solution, the support legs installed on the lower surface of the base plate can reduce the transmission of vibration to the ground, reduce operating noise, and improve equipment stability.
[0017] Optionally, a water filling tank is provided on the chassis, the top of the water filling tank is open, and the bottom is connected to the mixing barrel.
[0018] By adopting the above technical solution, the water filling tank arranged on the chassis can be used for water storage and quantitative addition.
[0019] Optionally, a deflector is provided at the opening position on the top of the water injection trough, the opening size of the deflector gradually increases in the direction away from the water injection trough, and the deflector is connected to the inside of the water injection trough.
[0020] By adopting the above technical solution, the deflector can facilitate personnel to add water to the water filling tank.
[0021] Optionally, the motor is removably connected to an external protective casing.
[0022] By adopting the above technical solution, the protective shell protects the motor, can prevent cement dust from entering the interior of the motor, and improves the service life of the motor.
[0023] In summary, the present application includes at least one of the following beneficial technical effects:
[0024] 1. The chassis in the present application supports other parts of the structure, the motor can drive, the commutator can transmit the motor torque to the mixing shaft and the driving wheel respectively, and the driven wheel can drive the mixing barrel to rotate eccentrically under the driving action of the driving wheel, thereby replacing the planetary mixer head to realize the relative rotation between the mixing barrel and the mixing shaft. Due to the relative movement between the mixing barrel and the ground, the cement mortar adhered to the inner wall of the mixing barrel will fully contact with the mixing shaft during the rotation process and be evenly mixed, thereby achieving the invention purpose of further improving the uniformity of cement mortar prepared by the cement mortar mixer and improving the accuracy of cement mortar strength test;
[0025] 2. The barrel in the present application is a container for cement mortar, the limit sleeve supports the barrel, the eccentric plate supports the limit sleeve, and can drive the limit sleeve and the barrel to rotate eccentrically, and the sliding sleeve plays the role of limit installation and height adjustment;
[0026] 3. In the present application, the water filling tank provided on the chassis can be used for water storage and quantitative addition. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a structural schematic diagram of a cement mortar mixer disclosed in an embodiment of the present application.
[0028] Figure 2 It is a schematic diagram of the structure of the base in the embodiment of the present application.
[0029] Figure 3 It is a schematic diagram of the structure of the mixing barrel in the embodiment of the present application.
[0030] Explanation of the reference numerals: 1. base; 11. bottom plate; 12. driving wheel; 13. driven wheel; 14. rotating shaft; 111. supporting leg; 2. chassis; 21. water filling trough; 22. air guide cover; 3. motor; 31. protective shell; 4. commutator; 5. stirring shaft; 6. stirring barrel; 61. barrel body; 62. limiting sleeve; 63. eccentric plate; 64. sliding sleeve; 641. fastening bolt. DETAILED DESCRIPTION
[0031] The following is combined with Figure 1 -Attached Figure 3 This application is described in further detail.
[0032] According to the relevant provisions of GB / T-17671-2021 "Test Method for Cement Mortar Strength", the standard test method for cement mortar strength is to mix the cement to be tested with water and standard sand in a certain proportion to prepare cement mortar, then cast it into a 40*40*160 prism, and finally perform compression and flexural tests on the prism. At present, the industry generally uses a planetary cement mortar mixer to prepare cement mortar. This mixer has a planetary mixer head, which can orbit around the motor axis as the center of the circle while rotating around the mixing shaft, thereby stirring the cement mortar in the mixing barrel in all directions. However, the mixer head of this cement mortar mixer has a large rotation radius. In order to avoid collision and interference with the inner wall of the mixing barrel during the revolution, the design width of the stirring rod is narrow, so there is a large gap between the stirring rod and the inner wall of the mixing barrel, which results in the cement mortar adhered to the inner wall of the mixing barrel not being fully stirred. In order to further improve the uniformity of cement mortar prepared by a cement mortar mixer and improve the accuracy of cement mortar strength testing, the present application provides a cement mortar mixer.
[0033] The present application embodiment discloses a cement mortar mixer. Figure 1 The cement mortar mixer includes a base 1, a chassis 2, a motor 3, a commutator 4, a mixing shaft 5 and a mixing barrel 6.
[0034] Reference Figure 1 and Figure 2 The base 1 includes a bottom plate 11, a driving wheel 12, a driven wheel 13 and a rotating shaft 14. The bottom plate 11 is a rectangular metal plate, and support legs 111 are welded and fixedly installed at the four corners of the bottom of the bottom plate 11, and a damping spring shock-absorbing structure is arranged inside the support leg 111. The driving wheel 12 and the driven wheel 13 are both installed in parallel on the upper surface of the bottom plate 11, and the driving wheel 12 and the driven wheel 13 are both rotatably connected to the bottom plate 11, and the driving wheel 12 and the driven wheel 13 are chain-drivenly connected. The rotating shaft 14 is a solid hexagonal prism metal rod arranged on the driven wheel 13 perpendicular to the upper surface of the bottom plate 11. The axis of the rotating shaft 14 is colinear with the axis of the driven wheel 13. The driving wheel 12 is fixedly connected to the power output end of the commutator 4.
[0035] Reference Figure 1The chassis 2 is a hollow metal box. The chassis 2 is welded to the base 1, and a water injection tank 21 is welded and installed at one end of the chassis 2 away from the base 1. The water injection tank 21 is a hollow metal tank with a top cover, and a round hole is provided on the top cover of the water injection tank 21. The air deflector 22 is a funnel-shaped plastic shell. The opening size of the air deflector 22 gradually increases in the direction away from the water injection tank 21. The end of the air deflector 22 with a smaller opening is connected to the round hole on the top cover of the water injection tank 21. A volume scale is provided on the side wall of the air deflector 22. A control panel is installed on the side wall of the chassis 2, and the control panel is electrically connected to the motor 3 for adjusting the start and stop, direction and speed of the motor 3.
[0036] Reference Figure 1 The motor 3 is horizontally mounted on the top of the chassis 2, and the power output shaft of the motor 3 is fixedly connected to the power input end of the commutator 4 through a coupling. A protective shell 31 is provided on the outside of the motor 3.
[0037] Reference Figure 1 The commutator 4 includes a rectangular hollow metal shell and an input shaft horizontally arranged in the shell. The input shaft is arranged in the horizontal direction, and one end of the input shaft is fixedly connected to the power output shaft of the motor 3 through a coupling. Two bevel gears are fixedly sleeved at the end and the middle of the input shaft. The bevel gear located at the end of the input shaft is meshed with the stirring shaft 5 to drive the stirring shaft 5 to rotate. The bevel gear located in the middle of the input shaft is meshed with one end of a transmission shaft vertically penetrated in the chassis 2. The other end of the transmission shaft is fixedly connected to the driving wheel 12. The end of the stirring shaft 5 away from the commutator 4 is inserted into the stirring barrel 6.
[0038] Reference Figure 1 and Figure 3 The mixing barrel 6 includes a barrel body 61, a limiting sleeve 62, an eccentric plate 63 and a sliding sleeve 64. The barrel body 61 is a barrel-shaped metal container with an opening at the top and a handle on the side wall. The limiting sleeve 62 is sleeved on the outer side of the barrel body 61, and plays a limiting role on the barrel body 61, so that the barrel body 61 can only move in a direction perpendicular to the base 1. The bottom of the limiting sleeve 62 and one end of the eccentric plate 63, and the bottom of the other end of the eccentric plate 63 are fixedly connected with a sliding sleeve 64. The sliding sleeve 64 is a metal sleeve with a hexagonal groove. The sliding sleeve 64 is sleeved on the rotating shaft 14 and is slidably connected to the rotating shaft 14. A fastening bolt 641 is arranged on the sliding sleeve 64 in the horizontal direction, and the end of the fastening bolt 641 abuts against the side wall of the rotating shaft 14 to fix the relative position of the sliding sleeve 64 and the rotating shaft 14.
[0039] The implementation principle of a cement mortar mixer in the embodiment of the present application is as follows: the commutator 4 can transmit the torque generated by the rotation of the motor 3 to the mixing shaft 5 and the driving wheel 12 respectively, the driving wheel 12 drives the driven wheel 13 to rotate through the chain transmission structure, and the driven wheel 13 drives the mixing barrel 6 to rotate eccentrically around the axis of the mixing shaft 5 by driving the rotating shaft 14. The rotation of the mixing barrel 6 replaces the revolution of the planetary mixer head, and cooperates with the rotation of the mixing shaft 5 to more fully stir the cement mortar adhered to the side wall of the mixing barrel 6.
[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A cement mortar mixer, characterized in that: The invention comprises a base (1), a chassis (2) fixed on the base (1), a motor (3) arranged on the chassis (2), a commutator (4) arranged on the chassis (2), a stirring shaft (5) connected to the commutator (4), and a stirring barrel (6) arranged on the base (1); the base (1) comprises a bottom plate (11), a driving wheel (12) rotatably connected to the bottom plate (11), a driven wheel (13) rotatably connected to the bottom plate (11), and a rotating shaft (14) fixed to the driven wheel (13); an end of the rotating shaft (14) away from the driven wheel (13) is slidably connected to the bottom of the stirring barrel (6); the driving wheel (12) is chain-drivenly connected to the driven wheel (13) and is connected to the commutator (4); The mixing barrel (6) comprises a barrel body (61), a limiting sleeve (62) sleeved on the barrel body (61), an eccentric plate (63) fixedly connected to the limiting sleeve (62), and a sliding sleeve (64) provided on the eccentric plate (63), wherein the sliding sleeve (64) is slidably connected to the rotating shaft (14).
2. A cement mortar mixer according to claim 1, characterized in that: A fastening bolt (641) is passed through the side wall of the sliding sleeve (64), and the fastening bolt (641) is threadably matched with the sliding sleeve (64) and abuts against the side wall of the rotating shaft (14).
3. A cement mortar mixer according to claim 1, characterized in that: A handle (611) is fixedly provided on the side wall of the barrel body (61).
4. A cement mortar mixer according to claim 1, characterized in that: A plurality of supporting legs (111) are provided on the lower surface of the bottom plate (11).
5. The cement mortar mixer according to claim 1, characterized in that: The housing (2) is provided with a water injection groove (21), the top of the water injection groove (21) is open, and the bottom is connected to the mixing barrel (6).
6. A cement mortar mixer according to claim 5, characterized in that: A flow guide cover (22) is provided at the opening position of the top of the water injection groove (21); the opening size of the flow guide cover (22) gradually increases in a direction away from the water injection groove (21); and the flow guide cover (22) is communicated with the inside of the water injection groove (21).
7. A cement mortar mixer according to claim 1, characterized in that: The outside of the motor (3) is detachably connected to a protective shell (31).