CN-122008405-A - Prevent holding axle and have no dead angle horizontal concrete mixer

CN122008405ACN 122008405 ACN122008405 ACN 122008405ACN-122008405-A

Abstract

The invention discloses an anti-seizing dead-angle horizontal concrete mixer which comprises a mixing cylinder body, a first mixing shaft, a second mixing shaft, a transmission mechanism, a driving motor and a driving motor, wherein the first mixing shaft and the second mixing shaft are arranged in the mixing cylinder body, the transmission mechanism and the driving motor are arranged on the outer side of the mixing cylinder body, the transmission mechanism comprises a first complete gear, a second complete gear, a first half gear, a second half gear and a third half gear, the first complete gear and the first half gear are coaxially and fixedly connected to the extending end of the first mixing shaft, the second complete gear and the second half gear are coaxially and fixedly connected to the extending end of the second mixing shaft, the first complete gear and the second complete gear are always meshed, the third half gear is arranged between the first half gear and the second half gear and is driven by the driving motor to continuously rotate in a unidirectional mode, and is alternately meshed and connected with the first half gear and the second half gear. According to the invention, synchronous reverse intermittent positive and negative rotation of the double stirring shafts is realized through the transmission mechanism, the effect of preventing the stirring shafts from being locked is realized, and meanwhile, the stirring dead angle is eliminated.

Inventors

LIU XIANGKUN
LU DEHUA
JIA HONGFENG
Qiu Kaijian
ZHAO DAN
ZHANG XINDONG

Assignees

中核混凝土股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260317

Claims (8)

1. The horizontal concrete mixer is characterized by comprising a mixing cylinder, a first mixing shaft, a second mixing shaft, a transmission mechanism, a driving motor and a driving motor, wherein the first mixing shaft and the second mixing shaft are arranged in the mixing cylinder, the transmission mechanism and the driving motor are arranged on the outer side of the mixing cylinder, the transmission mechanism comprises a first complete gear, a second complete gear, a first half gear, a second half gear and a third half gear, the first complete gear and the first half gear are coaxially and fixedly connected to the extending end of the first mixing shaft, the second complete gear and the second half gear are coaxially and fixedly connected to the extending end of the second mixing shaft, the first complete gear and the second complete gear are always meshed, the third half gear is arranged between the first half gear and the second half gear and is driven by the driving motor to continuously rotate in a unidirectional mode, and alternately meshed with the first half gear and the second half gear.
2. The anti-seizing dead angle horizontal concrete mixer as set forth in claim 1, wherein in an initial state, the third half gear is in engagement with the first half gear and disengaged from the second half gear, when the third half gear rotates clockwise from 0 ° to 180 °, the third half gear is disengaged from the first half gear and engaged with the second half gear, and when the third half gear rotates clockwise from 180 ° to 360 °, the third half gear is disengaged from the second half gear and engaged with the first half gear.
3. The anti-seizing dead angle free horizontal concrete mixer as claimed in claim 1, wherein the first half gear, the second half gear and the third half gear are incomplete straight tooth cylindrical gears with the same modulus and number of teeth, teeth of the first half gear and teeth of the third half gear are distributed in the circumferential 0-180 degree area, and teeth of the second half gear are distributed in the circumferential 180-360 degree area.
4. The dead-angle-free horizontal concrete mixer for preventing shaft locking according to claim 3, wherein the meshing tooth ends of the first half gear, the second half gear and the third half gear are subjected to fillet trimming.
5. The dead angle free horizontal concrete mixer of claim 1 wherein the first and second full gears are spur gears having the same modulus and number of teeth.
6. The dead-angle-free horizontal concrete mixer for preventing shaft locking according to claim 1, wherein the protruding ends of the first mixing shaft and the second mixing shaft are fixedly sleeved with flywheels, and the flywheels are used for absorbing reversing impact energy and smoothing rotation speed fluctuation of a shafting.
7. The dead angle free horizontal concrete mixer of claim 6 wherein the drive mechanism and flywheel are disposed within a protective housing.
8. The dead angle free horizontal concrete mixer of claim 7 wherein the flywheel is disposed at an end remote from the drive motor.

Description

Prevent holding axle and have no dead angle horizontal concrete mixer Technical Field The invention relates to the technical field of concrete stirring equipment, in particular to an anti-seizing dead-angle-free horizontal concrete stirrer. Background The horizontal concrete mixer is widely applied to the field of concrete production due to high mixing efficiency and stable mixing quality, but the mixing shaft of the existing horizontal concrete mixer adopts a continuous and homodromous transmission mode, the motion track of the mixing blade is fixed, and concrete materials are easy to attach, accumulate and gradually compact on the surface of the shaft body of the mixing shaft and the root of the blade along the fixed track in the mixing process, so that a intractable shaft locking phenomenon is formed. The phenomenon can not only greatly reduce the stirring and dispersing efficiency of concrete, but also obviously increase the rotation resistance of a shaft system, so that the load of a driving motor is suddenly increased, the energy consumption of equipment is increased, motor overload and the abrasion of the shaft system are aggravated when the driving motor is operated for a long time, even the shaft system is blocked and the equipment is stopped, and the maintenance cost and the stop loss of the equipment are increased. Meanwhile, due to the limitation of fixed stirring tracks, the movement form of concrete materials is single, stirring dead angles are easily formed at the positions of the corners of the cylinder body, gaps of the stirring shaft and the like, concrete aggregate and cementing materials in dead angle areas cannot be fully mixed and dispersed, the problems of uneven local proportion, poor workability and the like of the stirred concrete are caused, the pouring performance and the strength of finished products of the concrete are directly influenced, and the use requirements of high-precision building engineering are difficult to meet. Disclosure of Invention In order to solve the problems, the invention provides an anti-seizing dead-angle-free horizontal concrete mixer. The technical scheme adopted by the invention is as follows: The horizontal concrete mixer comprises a mixing cylinder, a first mixing shaft, a second mixing shaft, a transmission mechanism, a driving motor and a driving motor, wherein the first mixing shaft and the second mixing shaft are arranged in the mixing cylinder, the transmission mechanism and the driving motor are arranged on the outer side of the mixing cylinder, the transmission mechanism comprises a first complete gear, a second complete gear, a first half gear, a second half gear and a third half gear, the first complete gear and the first half gear are coaxially and fixedly connected to the extending end of the first mixing shaft, the second complete gear and the second half gear are coaxially and fixedly connected to the extending end of the second mixing shaft, the first complete gear and the second complete gear are always meshed, the third half gear is arranged between the first half gear and the second half gear, and is driven by the driving motor to continuously rotate in a unidirectional mode and is alternately meshed with the first half gear and the second half gear. Further, in the initial state, the third half gear is in an engaged state with the first half gear and is disengaged from the second half gear, when the third half gear rotates clockwise from 0 degrees to 180 degrees, the third half gear is disengaged from the first half gear and is engaged with the second half gear, and when the third half gear rotates clockwise from 180 degrees to 360 degrees, the third half gear is disengaged from the second half gear and is engaged with the first half gear. Further, the first half gear, the second half gear and the third half gear are incomplete straight-tooth cylindrical gears with the same modulus and the same tooth number, teeth of the first half gear and teeth of the third half gear are distributed in the circumferential 0-180-degree area, and teeth of the second half gear are distributed in the circumferential 180-360-degree area. Further, the meshing tooth ends of the first half gear, the second half gear and the third half gear are subjected to round corner trimming treatment. Further, the first complete gear and the second complete gear are complete straight spur gears with the same modulus and the same tooth number. Furthermore, the extending ends of the first stirring shaft and the second stirring shaft are fixedly sleeved with flywheels, and the flywheels are used for absorbing reversing impact energy and smoothing shafting rotation speed fluctuation. Further, the transmission mechanism and the flywheel are arranged in a protective shell. Further, the flywheel is arranged at one end far away from the driving motor. The invention has the beneficial effects that: 1. According to the invention, synchronous reverse intermittent positive and n