CN211279086U - Concrete mixer - Google Patents

Abstract

The utility model discloses a concrete mixer, its technical scheme main points are: including support arm and the stirring vane who sets up in support arm one end, the one end of support arm is provided with first arm lock and the second arm lock that is parallel to each other, and first arm lock and second arm lock leave the space, one side of stirring vane is seted up and is made first arm lock and second arm lock press from both sides the constant head tank of establishing to stirring vane with the cooperation of first arm lock, and a fixed blind hole has been seted up to the bottom surface of constant head tank, has set gradually a first spring in the fixed blind hole and with fixed blind hole complex fixture block, the card hole that holds fixture block card and establish is seted up to the position that first arm lock corresponds with fixed blind hole, and the card hole runs through the lateral wall of first arm lock. The utility model has the advantages that: the efficiency of change stirring vane has been improved.

Description

Concrete mixer

Technical Field

The utility model relates to a concrete equipment field, concretely relates to concrete mixer.

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 barrel, a feeding and discharging mechanism, a water supply system, a prime motor, a transmission mechanism, a frame, a supporting device and the like. According to working properties, the method is divided into a batch type (batch type) and a continuous type; according to the stirring principle, the method is divided into a self-falling type method and a forced type method; the device is divided into a fixed type and a movable type according to the installation mode; dividing a tilting type and a non-tilting type according to a discharging mode; according to the structure of the mixing drum, the mixing drum is divided into a pear type, a drum type, a double cone, a disc vertical shaft type, a circular groove horizontal shaft type and the like.

A conventional concrete mixer, as shown in fig. 1 and 2, includes a mixer housing 1, two mixer shafts 11 disposed in the mixer housing 1, and a driving motor 12 disposed outside the mixer housing 1 for driving the two mixer shafts 11 to rotate. The circumferential surface of the stirring shaft 11 is provided with a plurality of blade assemblies 2 for stirring concrete. The blade assembly 2 comprises a first half arm 21 and a second half arm 22, the first half arm 21 and the second half arm 22 are fixed on the outer peripheral surface of the stirring shaft 11 through bolt nuts, a supporting arm 23 is arranged on the first half arm 21, and a stirring blade 24 fixed through bolt nuts is arranged at the tail end of the supporting arm 23.

If stirring vane 24 takes place to damage when using, the staff need dismantle stirring vane 24 through the spiral shell of bolt nut, but stirring vane 24 is in the soaking of concrete for a long time, is mingled with the concrete in the gap of bolt and nut to the dismantlement of stirring vane 24 has increased the degree of difficulty.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a concrete mixer, its advantage has improved the efficiency of changing stirring vane.

The above technical purpose of the present invention can be achieved by the following technical solutions:

concrete mixer, including support arm and the stirring vane who sets up in support arm one end, the one end of support arm is provided with first arm lock and the second arm lock that is parallel to each other, and first arm lock and second arm lock leave the space, one side of stirring vane sets up the constant head tank that makes first arm lock and second arm lock press from both sides the establishment to stirring vane with the cooperation of first arm lock, and a fixed blind hole has been seted up to the bottom surface of constant head tank, set gradually in the fixed blind hole a first spring and with fixed blind hole complex fixture block, the card hole that holds fixture block card and establish is seted up to the position that first arm lock corresponds with fixed blind hole, and the card hole runs through the lateral wall of first arm lock.

Through the technical scheme, when the stirring blade is replaced by a worker, the stirring blade is firstly inserted into the gap between the first clamping arm and the second clamping arm, so that the first clamping arm is positioned in the positioning groove, and the rotation of the stirring blade in the first clamping arm and the second clamping arm is limited; when stirring vane inserts into between first arm lock and the second arm lock, at first press into the fixture block in the fixed blind hole for first spring elastic compression, then when the fixture block counterpoints each other with the card hole, make the fixture block pop out fixed blind hole, and make the fixture block be located fixed blind hole and card hole simultaneously, make support arm and stirring vane reciprocal anchorage. If when the stirring blade is required to be disassembled, the clamping block is only required to be pressed, the clamping block is separated from the clamping hole, and the stirring blade can be replaced, so that the replacement efficiency of the stirring blade is improved.

The utility model discloses further set up to: at least two fixed blind holes are formed in the stirring blade.

Through the technical scheme, the fixing blind holes are at least opened, and the corresponding clamping blocks are also at least provided with two parts, so that the fixing points of the stirring blades and the supporting arms are increased, and the stability of the supporting arms and the stirring blades in fixing is improved.

The utility model discloses further set up to: and the side wall of the first clamping arm, which deviates from the second clamping arm, is connected with a blocking piece for blocking the clamping hole in a sliding manner.

Through above-mentioned technical scheme, the setting of separation blade has played the effect of blocking to the card hole for the support arm is at the in-process of stirring, and the concrete is difficult for entering into the card hole, has avoided the concrete to exert pressure to the fixture block, causes the condition emergence that the fixture block breaks away from the card hole.

The utility model discloses further set up to: the lateral wall of first arm lock deviating from the second arm lock is provided with two slides that are parallel to each other and restrict the separation blade direction of sliding.

Through the technical scheme, the slide way is arranged to limit the blocking piece, so that the normal sliding of the sliding piece is guaranteed, and the operation of workers is facilitated.

The utility model discloses further set up to: the lateral wall that first arm lock deviates from the second arm lock inlays on being equipped with a first magnet, the separation blade inlays with first magnet position department of corresponding and is equipped with the second magnet of inhaling the mutual magnetism of iron with first magnet.

Through above-mentioned technical scheme, because the support arm causes the separation blade to slide in two slides easily at the pivoted in-process, through the mutual magnetism of first magnet and second magnet, played limiting displacement to the separation blade, improved separation blade at slide internal fixation's stability.

The utility model discloses further set up to: one side rigid coupling that the separation blade deviates from first arm lock has a control piece of being convenient for the separation blade is gliding.

Through above-mentioned technical scheme, the area of contact of hand with the separation blade has been increased in the setting of control block, and the staff of being convenient for controls the separation blade through the control block, has improved the convenience of controlling the separation blade.

The utility model discloses further set up to: the fixture block is provided with a chamfer angle towards the end face of the first clamping arm, and the chamfer angle is convenient to insert into the fixture hole.

Through the technical scheme, the chamfer angle is formed, the butt joint difficulty of the clamping block and the clamping hole in the first clamping arm is reduced, and the convenience of clamping the clamping block into the clamping hole is improved.

To sum up, the utility model discloses following beneficial effect has:

firstly, the replacement efficiency of the stirring blades is improved. When the stirring blade needs to be disassembled, the stirring blade can be replaced only by pressing the fixture block to separate the fixture block from the clamping of the clamping hole, so that the replacement efficiency of the stirring blade is improved;

and secondly, the stability of fixing the stirring blades is improved. The setting of separation blade has played the effect of blocking to the card hole for the support arm is at the in-process of stirring, and the concrete is difficult for entering into the card downthehole, has avoided the concrete to exert pressure to the fixture block, causes the condition emergence that the fixture block breaks away from the card hole.

Drawings

FIG. 1 is a schematic view showing the overall structure of a concrete mixer of the prior art;

FIG. 2 is a schematic view showing a structure of a vane assembly of the background art;

FIG. 3 is a schematic view showing the overall construction of the concrete mixer according to the present embodiment;

FIG. 4 is a schematic view showing the connection state of the blade assembly and the stirring shaft;

FIG. 5 is a schematic view showing the blade assembly fixed to the circumferential surface of the stirring shaft;

FIG. 6 is a schematic structural view showing the inner side wall of the first half arm;

FIG. 7 is a schematic view showing a state where the support arm is detached;

FIG. 8 is an exploded view showing a structure for connecting the stirring vanes and the support arms;

FIG. 9 is a schematic view showing the structure of a stirring blade;

FIG. 10 is a schematic structural view showing a baffle plate;

FIG. 11 is a schematic view showing a state where the second arm half is connected to the stirring shaft.

In the figure, 1, a stirring shell; 11. a stirring shaft; 111. a jack; 12. a drive motor; 13. a blanking assembly; 2. a blade assembly; 21. a first half-arm; 211. a fixing hole; 212. caulking grooves; 213. a limiting groove; 214. a slide hole; 22. a second half-arm; 221. accommodating grooves; 23. a support arm; 231. a threaded hole; 232. aligning holes; 24. a stirring blade; 241. positioning a groove; 242. fixing the blind hole; 31. a screw; 32. a limiting block; 33. a reinforcing plate; 41. positioning a rod; 42. a limiting ring; 43. a compression spring; 51. a first clamp arm; 511. a clamping hole; 52. a second clamp arm; 61. a first spring; 62. a clamping block; 71. a baffle plate; 72. a slideway; 73. a control block; 74. a second magnet; 75. a first iron absorbing stone; 81. positioning blocks; 82. a limiting column; 91. a threaded pipe; 92. a nut is engaged.

Detailed Description

Concrete mixer, as shown in fig. 3, including upper end open-ended agitator housing 1, the level sets up two (mixing) shafts 11 in agitator housing 1, two (mixing) shafts 11 are parallel to each other, and the both ends of two (mixing) shafts 11 are connected with agitator housing 1's inner wall rotation, the outer rigid coupling of agitator housing 1 has two driving motor 12, two driving motor 12's output shaft and the coaxial rigid coupling of (mixing) shaft 11 that corresponds, agitator housing 1's bottom is provided with the unloading subassembly 13 with the concrete discharge that stirs, unloading subassembly 13 is prior art in the concrete mixer field, no longer describe herein.

As shown in fig. 4, each stirring shaft 11 is provided with a plurality of blade assemblies 2 along the length direction of the stirring shaft 11. The blade assembly 2 comprises an arc-shaped first half arm 21 and an arc-shaped second half arm 22, the first half arm 21 and the second half arm 22 are fastened on the circumferential surface of the stirring shaft 11 through bolts and nuts, a supporting arm 23 is arranged on the outer side wall of the first half arm 21, and a stirring blade 24 is arranged at the tail end of the supporting arm 23.

As shown in fig. 5 and 6, a fixing hole 211 penetrating through the first half arm 21 is formed in the first half arm 21, a screw 31 penetrates through the fixing hole 211, a circular limiting block 32 is fixedly connected to an end portion, facing the first half arm 21, of the screw 31, an axis of the screw 31 is perpendicular to a plane where the limiting block 32 is located, an embedding groove 212 in which the limiting block 32 is embedded is formed in an inner side wall of the first half arm 21, three triangular reinforcing plates 33 are fixedly connected to a peripheral surface of the screw 31, the reinforcing plates 33 are uniformly distributed on the peripheral surface of the screw 31, and the reinforcing plates 33 are arranged at a connection position of the screw 31 and the limiting block 32 and fixedly connected with the limiting block 32. The edge of the insertion groove 212 located at the fixing hole 211 is provided with a limit groove 213 for inserting the reinforcing plate 33, so that the screw 31 is limited to rotate freely in the fixing hole 211. The end surface of the supporting arm 23, which faces away from the stirring blade 24, is provided with a threaded hole 231 in which the screws 31 are matched with each other, and the threaded hole 231 is arranged along the length direction of the supporting arm 23.

As shown in fig. 4 and 5, when the worker connects the support arm 23 and the first half-arm 21 to each other, the reinforcement plate 33 is first embedded in the limiting groove 213, and then the support arm 23 is screwed onto the outer side wall of the first half-arm 21 by the screw connection of the support arm 23 and the screw 31, so that the end surface of the support arm 23 abuts against the outer surface of the first half-arm 21. In order to reduce the occurrence of looseness between the support arm 23 and the screw 31 in the process of rotation of the stirring shaft 11, the first half arm 21 is further provided with a pair of first half arms 21 and a positioning rod 41 for limiting the support arm 23, a sliding hole 214 for accommodating the positioning rod 41 to pass through is arranged on the bottom wall of the embedded groove 212 beside the limiting block 32, the direction of the sliding hole 214 is parallel to the axial direction of the screw 31, and a position, corresponding to the slide way 72, on the end face of the support arm 23 provided with the threaded hole 231 is provided with an aligning hole 232 communicated with the sliding hole 214. When the first half arm 21 and the second half arm 22 are fixed to the circumferential surface of the stirring shaft 11, one end of the positioning rod 41 facing the stirring shaft 11 is pressed against the outer circumferential surface of the stirring shaft 11, and drives the positioning rod 41 to slide in the sliding hole 214, and the positioning rod 41 is simultaneously located in the sliding hole 214 and the alignment hole 232, so that the relative rotation between the supporting arm 23 and the screw 31 is limited, and the stability of the supporting arm 23 rotating around the stirring shaft 11 is ensured. In order to improve the alignment efficiency of the positioning rod 41 penetrating into the alignment hole 232, the end of the positioning rod 41 facing the support arm 23 is hemispherical, so that when the positioning rod 41 penetrates into the alignment hole 232, the end of the arc of the positioning rod 41 contacts with the port of the alignment hole 232 to play a guiding role, and the alignment error between the sliding hole 214 and the alignment hole 232 is reduced.

As shown in fig. 4 and 6, if the supporting arm 23 is damaged during operation, the operator needs to replace the supporting arm 23, and first the operator loosens the bolts and nuts for fixing the first half arm 21 and the second half arm 22, so as to leave a gap between the first half arm 21 and the stirring shaft 11, and then rotates the first half arm 21 to a position right above the stirring shaft 11, so that the positioning rod 41 is disengaged from the alignment hole 232 under the action of gravity, thereby facilitating the screwing of the supporting arm 23, and making the damaged supporting arm 23 more easily disengaged from the screw 31. In order to improve the separation efficiency of the positioning rod 41 from the alignment hole 232, a limiting ring 42 is further fixedly connected to the outer peripheral surface of the positioning rod 41, the inner ring is located at the end portion, facing the stirring shaft 11, of the positioning rod 41, a compression spring 43 is further sleeved on the positioning rod 41, and the compression spring 43 is located between the limiting ring 42 and the bottom wall of the caulking groove 212. After the first half arm 21 and the stirring shaft 11 leave a gap, the positioning rod 41 slides in the direction away from the alignment hole 232 under the elastic action of the compression spring 43, and the positioning rod 41 is disengaged from the clamping of the alignment hole 232, so that the efficiency of disassembling and assembling the support arm 23 and the screw 31 is improved.

As shown in fig. 8 and 9, a first clamping arm 51, a second clamping arm 52, and a first clamping arm 51 and a second clamping arm 52 are fixedly connected to an end of the supporting arm 23 away from the first half-arm 21, the first clamping arm 51 and the second clamping arm 52 are parallel to each other, the stirring blade 24 is clamped between the first clamping arm 51 and the second clamping arm 52, and a positioning groove 241 matched with the first clamping arm 51 is formed on one side of the stirring blade 24. When the stirring blade 24 is interposed between the first and second clamping arms 51 and 52, the first clamping arm 51 abuts against the inner wall of the positioning groove 241, thereby limiting the rotation of the stirring blade 24 in the first and second clamping arms 51 and 52. Two circular fixed blind holes 242 are formed in the bottom wall of the positioning groove 241, two clamping holes 511 are formed in positions of the first clamping arm 51 corresponding to the fixed blind holes 242, a first spring 61 and a clamping block 62 matched with the fixed blind holes 242 are sequentially arranged in each fixed blind hole 242, one end of the first spring 61 is fixedly connected to the bottom wall of the fixed blind hole 242, and the other end of the first spring 61 is fixedly connected with the clamping block 62. When the fixture block 62 is pressed into the fixing blind hole 242, the first spring 61 is elastically compressed, so that the fixture block 62 is completely accommodated in the fixing blind hole 242, and when the fixing blind hole 242 is aligned with the clamping hole 511, the fixture block 62 is pressed against the clamping hole 511 by the elastic acting force of the first spring 61, so that the fixture block 62 is clamped in the fixing blind hole 242 and the clamping hole 511 at the same time, thereby improving the stability of the fixing of the stirring blade 24 and the supporting arm 23. If the stirring blade 24 is damaged, the worker can press the fixture block 62 through the fixture hole 511, so that the fixture block 62 is separated from the fixture of the fixture hole 511, and the convenience of mounting and dismounting the stirring blade 24 is improved.

As shown in fig. 8 and 9, in order to reduce the difficulty in abutting the latch 62 with the locking hole 511, the end surface of the latch 62 facing the first clip arm 51 is chamfered, so as to guide the sliding of the latch 62 and improve the efficiency of abutting the stirring blade 24 with the locking hole 511. Because the supporting arm 23 is in the process of rotating, concrete can enter the clamping hole 511, and the clamping block 62 is easily extruded, so that the clamping block 62 slides out of the clamping hole 511. Therefore, one side of the first clamping arm 51, which is far away from the second clamping arm 52, is provided with a blocking piece 71 for blocking the two clamping holes 511, two sides of the blocking piece 71 are respectively provided with an L-shaped slideway 72, and the blocking piece 71 is embedded in the slideways 72, so that the blocking piece 71 slides in the two slideways 72, and the occurrence of the condition that concrete enters the clamping holes 511 is reduced. A control block 73 is further fixedly connected to a side of the blocking piece 71 away from the first clamping arm 51, so that the contact area between the hand and the blocking piece 71 is increased, and the sliding efficiency of the blocking piece 71 is improved.

As shown in fig. 8 and 10, during the rotation of the supporting arm 23, the centrifugal force applied to the blocking plate 71 easily causes the blocking plate 71 to slide in the two slide ways 72, so that the concrete enters the blocking hole 511. In order to reduce the occurrence of this situation, a second magnet 74 is embedded in one side of the blocking piece 71 facing the first clamping arm 51, and a first magnet 75 corresponding to the second magnet 74 is embedded in one side of the first clamping arm 51 facing the blocking piece 71, so that the blocking piece 71 is blocked in the blocking hole 511 by the mutual magnetic attraction of the first magnet 75 and the second magnet 74, thereby improving the fixing stability of the blocking piece 71.

As shown in fig. 11, in order to improve the stability of the first half arm 21 and the second half arm 22 surrounding the stirring shaft 11, the stirring shaft 11 is provided with positioning blocks 81 corresponding to the blade assemblies 2 one by one, one side of the positioning block 81 is fixedly connected with a limiting post 82, the stirring shaft 11 is provided with an insertion hole 111 at a corresponding position where the limiting post 82 is inserted, and the inner arc surface of the second half arm 22 is provided with a receiving groove 221 for receiving the positioning block 81. When first half arm 21 and second half arm 22 are fixed on the global of (mixing) shaft 11, spacing to holding tank 221 through locating piece 81 has ensured blade subassembly 2 and has followed the pivoted stability of (mixing) shaft 11.

The working process is as follows: the worker first presses the fixture block 62 into the fixing blind hole 242, and then inserts the stirring blade 24 between the first clip arm 51 and the second clip arm 52, so that the fixture block 62 is clamped into the clamping hole 511 by the elastic force of the first spring 61, and the fixture block 62 is simultaneously located in the fixing blind hole 242 and the clamping hole 511. Then, the blocking piece 71 is inserted into the two slide ways 72, so that the blocking piece 71 is blocked at the blocking hole 511. Then, the screw 31 is threaded out of the first half-arm 21 from the inner side of the first half-arm 21, the reinforcing plate 33 is embedded in the limiting groove 213, the supporting arm 23 is fixed on the outer side wall of the first half-arm 21 by the threaded connection of the supporting arm 23 and the screw 31, the positioning rod 41 is inserted into the sliding hole 214 and the alignment hole 232 after the supporting arm 23 is screwed with the screw 31, the first half-arm 21 and the second half-arm 22 are fixed to each other, the positioning block 81 is positioned in the accommodating groove 221 of the second half-arm 22, the positioning rod 41 is abutted against the outer peripheral surface of the stirring shaft 11, and the other end of the positioning rod 41 is stably positioned in the sliding hole 214 and the alignment hole 232.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Claims (7)

1. Concrete mixer, including support arm (23) and setting up stirring vane (24) in support arm (23) one end, characterized by: a first clamping arm (51) and a second clamping arm (52) which are parallel to each other are arranged at one end of the supporting arm (23), a gap is reserved between the first clamping arm (51) and the second clamping arm (52), a positioning groove (241) which is matched with the first clamping arm (51) to enable the first clamping arm (51) and the second clamping arm (52) to clamp the stirring blade (24) is formed in one side of the stirring blade (24), a fixed blind hole (242) is formed in the bottom surface of the positioning groove (241), a first spring (61) and a clamping block (62) matched with the fixed blind hole (242) are sequentially arranged in the fixed blind hole (242), one end of the first spring (61) is fixed on the bottom wall of the fixed blind hole (242), the other end of the first spring (61) is fixedly connected with the clamping block (62), a clamping hole (511) for accommodating the clamping block (62) is formed in the position of the first clamping arm (51) corresponding to the fixed blind hole (242), the clamping hole (511) penetrates through the side wall of the first clamping arm (51).

2. The concrete mixer of claim 1, wherein: at least two fixed blind holes (242) are formed in the stirring blade (24).

3. The concrete mixer of claim 1, wherein: the side wall of the first clamping arm (51) departing from the second clamping arm (52) is connected with a blocking sheet (71) for blocking the clamping hole (511) in a sliding manner.

4. A concrete mixer according to claim 3, wherein: and two mutually parallel slideways (72) for limiting the sliding direction of the baffle plate (71) are arranged on the side wall of the first clamping arm (51) departing from the second clamping arm (52).

5. A concrete mixer according to claim 3, wherein: first arm lock (51) deviate from on the lateral wall of second arm lock (52) inlay and be equipped with a first magnet stone (75), separation blade (71) and first magnet stone (75) position correspond the department inlay and be equipped with second magnet stone (74) of inhaling the mutual magnetism of magnet stone (75) with first magnet stone (75).

6. The concrete mixer of claim 5, wherein: one side of the baffle plate (71) departing from the first clamping arm (51) is fixedly connected with a control block (73) which is convenient for the baffle plate (71) to slide.

7. The concrete mixer of claim 1, wherein: the end face, facing the first clamping arm (51), of the clamping block (62) is provided with a chamfer which is convenient to insert into the clamping hole (511).

Images