Conveying hopper device for premixed concrete
By installing an eccentricity monitoring mechanism and a material guiding mechanism on the mixer truck, the risk of falling and inaccurate unloading caused by excessive swinging of the mixing drum after wear are solved, and stability monitoring and accurate unloading of the mixing tank are achieved.
Patent Information
- Application Number
- CN202422415444.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-08
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-10-08
AI Technical Summary
The mixing drum of existing mixer trucks tends to swing too much after being worn, resulting in the risk of falling and making it difficult to achieve accurate unloading.
A ready-mixed concrete conveying hopper device was designed, which included an eccentricity monitoring mechanism and a material guiding mechanism. The eccentricity of the reducer output shaft was monitored and an alarm was issued to ensure the stability of the mixing tank. The motor-driven active gear was used to change the material discharge direction to achieve precise unloading.
It effectively prevents the mixing tank from falling, improves the safety of concrete transportation, and achieves accurate unloading of concrete.
Smart Images
Figure CN223419797U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the technical field of building engineering, specifically related to a pre -mixed concrete's delivery hopper device. BACKGROUND
[0002] The mixer truck is a special truck for transporting concrete for building, and is also often called as snail truck or olive truck due to its shape. The truck is equipped with a cylindrical mixing drum to carry mixed concrete. The mixing drum transmission system mainly consists of a speed reducer and a hydraulic motor, the hydraulic motor provides power for the speed reducer, and the purpose of the speed reducer is to reduce the speed and increase the torque. The inner wall of the mixing drum is provided with spiral stirring blades, which stir the concrete when the mixing drum rotates in one direction, and the stirring blades can send the concrete out of the mixing drum when the mixing drum rotates in the opposite direction.
[0003] The mixing drum is loaded with several tons of concrete, which causes increasing wear of the speed reducer. As the output shaft of the speed reducer becomes more and more eccentric, the mixing drum will swing more and more when it rotates. Once the eccentric rotation of the speed reducer exceeds the limit, the mixing drum is likely to fall off, and the concrete conveying is at risk. Moreover, when the concrete is unloaded, the movement of the mixer truck is limited due to obstacles at the construction site, and it is difficult to achieve precise unloading under the premise that the unloading direction cannot be changed. Therefore, it is necessary to provide a pre-mixed concrete delivery hopper device with high safety. SUMMARY
[0004] To solve the problem of not being able to monitor the swing amplitude of the mixing drum and not being able to achieve precise unloading in the background art, the utility model provides a pre-mixed concrete delivery hopper device.
[0005] To achieve the above purpose, the utility model provides the following technical scheme: a pre-mixed concrete delivery hopper device, comprising a base, a first support and a second support, the first support and the second support are respectively fixedly connected to the upper surface of the base at the left and right ends, further comprising a speed reducer, a hydraulic motor, a mixing tank, a guide wheel, an eccentric monitoring mechanism and a material guiding mechanism, the speed reducer is fixedly connected to the top of the first support; the hydraulic motor is installed at the left end of the speed reducer; the mixing tank is installed on the output shaft of the speed reducer; the guide wheel is two in number and is installed at the front and rear ends of the top of the second support, the mixing tank is supported by the guide wheel, the mixing tank is locked on the second support by using a bandage to prevent the mixing tank from falling off; the eccentric monitoring mechanism is installed at the right end of the first support; the material guiding mechanism is fixedly connected to the right end of the top of the second support.
[0006] Preferably, the eccentricity monitoring mechanism includes a shell, an alarm light, a turntable, a guide groove, a slider, a pin, a roller, a clamping assembly, a receiving groove, a block, a first spring, a positioning blind hole and a first contact. The shell is fixedly connected to the right end of the first bracket, and the shell shape is hollow and annular; the alarm light is installed on the top of the shell; the turntable can be rotatably placed in the inner cavity of the shell, and the left side wall of the turntable is provided with a plurality of guide grooves equidistantly along the circumference; the number of sliders is the same as that of the guide grooves, and they are equidistantly inserted into the inner side of the shell along the circumference; one end of the pin is installed in the The outer side of the slider, the other end is inserted into the inner cavity of the guide groove; the roller is installed on the inner side of the slider, and the roller can roll as the output shaft of the reducer rotates; the clamping assembly is embedded in the bottom of the shell; the accommodating groove is opened at the top of the left side wall of the turntable; the stopper is installed on the inner wall of the shell; the first spring is inserted into the inner cavity of the accommodating groove, and under the obstruction of the stopper, the elastic force of the first spring can push the turntable to rotate clockwise; the positioning blind hole is opened at the bottom of the turntable; the first contact is installed at the top of the inner cavity of the positioning blind hole, and the first contact is electrically connected to the alarm light.
[0007] Preferably, the guide grooves are obliquely distributed on the outer wall of the turntable.
[0008] Preferably, the locking assembly includes a limiting cylinder, a telescopic rod, a second spring and a second contact, the limiting cylinder is embedded in the bottom of the shell; the telescopic rod is inserted into the inner cavity of the limiting cylinder so as to be able to slide up and down; the second spring is sleeved on the outer wall of the telescopic rod, and pushes the telescopic rod to move upward under the action of the elastic force of the second spring; the second contact is installed on the top of the telescopic rod, and the second contact is externally connected to a power supply.
[0009] Preferably, the top of the telescopic rod is triangular in shape.
[0010] Preferably, the material guiding mechanism includes a base plate, a motor, a driving gear, a material pipe, a hopper, an outer tube, an outer gear ring and a material guiding platform. The base plate is fixedly connected to the top right end of the second bracket; the motor is installed at the left end of the upper surface of the base plate; the driving gear is installed at the output end of the motor; the material pipe is installed at the right end of the upper surface of the base plate; the hopper is fixedly connected to the top end of the material pipe; the outer tube is rotatably sleeved on the bottom end of the outer wall of the material pipe; the outer gear ring is installed on the outer wall of the outer tube, and the outer gear ring is meshed with the driving gear. By driving the driving gear by the motor, the outer gear ring can drive the outer tube to rotate; the material guiding platform is installed at the bottom end of the outer tube.
[0011] Preferably, an annular protrusion is provided at the bottom of the outer wall of the material tube.
[0012] Compared with the prior art, the beneficial effects of the present invention are as follows: when the output shaft of the reducer gradually wears and becomes loose, the output shaft squeezes the roller outward, prompting the pin to squeeze the guide groove, and the turntable rotates counterclockwise; when the eccentricity of the output shaft of the reducer exceeds the limit, the counterclockwise angle of the turntable increases, and under the action of the elastic force of the second spring, the telescopic rod is pushed into the positioning blind hole, the second contact contacts the first contact, and the alarm light is energized and illuminated to sound an alarm;
[0013] The first motor drives the driving gear to rotate. Under the transmission condition that the driving gear is meshed with the outer gear ring, the outer tube can rotate clockwise or counterclockwise to change the unloading direction of the material guide table;
[0014] Therefore, the utility model can monitor the rotation stability of the mixing tank, prevent the mixing tank from falling due to excessive swinging, improve the safety of concrete transportation, and adjust the direction of concrete discharge to achieve accurate concrete unloading. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0016] Figure 1 This is the main view of the utility model;
[0017] Figure 2 This is a left side cross-sectional view of the eccentricity monitoring mechanism of the utility model;
[0018] Figure 3 This is the left view of the turntable of the utility model;
[0019] Figure 4 This is a left side cross-sectional view of the locking assembly of the utility model;
[0020] Figure 5 This is a front cross-sectional view of the material guiding mechanism of the present utility model.
[0021] In the figure: 1. base; 2. first bracket; 3. second bracket; 4. reducer; 5. hydraulic motor; 6. mixing tank; 7. guide wheel; 8. eccentricity monitoring mechanism; 9. material guiding mechanism; 81. housing; 82. alarm light; 83. turntable; 84. guide groove; 85. slider; 86. pin; 87. roller; 88. clamping assembly; 89. receiving groove; 810. stop block; 811. first spring; 812. positioning blind hole; 813. first contact; 881. limiting cylinder; 882. telescopic rod; 883. second spring; 884. second contact; 91. base plate; 92. motor; 93. driving gear; 94. material pipe; 95. hopper; 96. outer tube; 97. outer gear ring; 98. material guiding platform. DETAILED DESCRIPTION
[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.
[0023] Please refer to Figure 1-5 The utility model provides technical scheme as follows: A kind of pre-mixed concrete conveying hopper device, including base 1, first support 2 and second support 3, first support 2 and second support 3 are respectively fixedly connected on the upper surface of base 1 left and right ends, base 1 is installed together with mixer truck body, conveying is realized to concrete, first support 2 top is fixedly connected with speed reducer 4, speed reducer 4 left end is equipped with hydraulic motor 5, speed reducer 4 output shaft is equipped with mixing jar 6, by hydraulic motor 5 drive speed reducer 4 low speed rotation, promote the rotation torque of mixing jar 6, mixing jar 6 inside is provided with helical blade, helical blade mixes concrete when mixing jar 6 forward rotation, when overturning, let concrete move upwards, so that concrete comes out from mixing jar 6, realizes unloading, second support 3 top front and rear ends are both equipped with guide wheel 7, mixing jar 6 is supported by guide wheel 7, using bandage is bound in second support 3, first support 2 right end is fixedly connected with eccentric monitoring mechanism 8, second support 3 top right end is fixedly connected with material guiding mechanism 9.
[0024] Specifically, eccentric monitoring mechanism 8 includes the shell 81 fixedly connected at the right end of first support 2, the shell 81 is hollow, annular, the shell 81 top is equipped with alarm lamp 82, the shell 81 inner chamber is placed with rotatable turntable 83, the left side wall of turntable 83 is equidistantly provided with a plurality of guide slots 84 along the circumference, the inner side of shell 81 is equidistantly provided with the same number of sliding blocks 85 as guide slots 84 along the circumference, the outer side of sliding block 85 is equipped with the pin 86 inserted into guide slot 84, guide slot 84 is obliquely distributed on the outer wall of turntable 83, when turntable 83 rotates clockwise or counterclockwise, the inclined surface of guide slot 84 can extrude pin 86 inward or outward, so that sliding block 85 approaches or moves away from the output shaft of speed reducer 4, the inner side of sliding block 85 is equipped with roller 87, which rolls under the rotation of the output shaft of speed reducer 4, the bottom of shell 81 is equipped with carding assembly 88, the top of turntable 83 is provided with accommodating groove 89, the inner wall of shell 81 is equipped with stop block 810, the first spring 811 is inserted into accommodating groove 89, under the blocking condition of stop block 810 to first spring 811, the elastic force of first spring 811 can drive turntable 83 to rotate clockwise, the bottom of turntable 83 is provided with positioning blind hole 812, the inner cavity of positioning blind hole 812 is equipped with first contact 813 electrically connected with alarm lamp 82.
[0025] Specifically, the locking assembly 88 includes a limiting cylinder 881 embedded in the bottom of the outer shell 81, and a telescopic rod 882 that can slide up and down is inserted into the inner cavity of the limiting cylinder 881. A second spring 883 is sleeved on the outer wall of the telescopic rod 882. The elastic force of the second spring 883 pushes the telescopic rod 882 to move upward. The top of the telescopic rod 882 is triangular in shape, which facilitates the insertion of the telescopic rod 882 into the positioning blind hole 812. A second contact 884 is installed on the top of the telescopic rod 882, and the second contact 884 is externally connected to a power supply.
[0026] Specifically, the material guiding mechanism 9 includes a base plate 91 fixedly connected to the top right end of the second bracket 3, a motor 92 is installed on the left end of the upper surface of the base plate 91, a driving gear 93 is installed on the output end of the motor 92, a material pipe 94 is installed on the right end of the upper surface of the base plate 91, a hopper 95 is fixedly connected to the top of the material pipe 94, the hopper 95 collects the concrete flowing out of the mixing tank 6, an outer tube 96 is sleeved on the bottom of the outer wall of the material pipe 94, an annular protrusion is provided at the bottom of the outer wall of the material pipe 94 to improve the rotation stability of the outer tube 96, an outer gear ring 97 meshing with the driving gear 93 is installed on the outer wall of the outer tube 96, and the driving gear 93 rotates under the drive of the motor 92, so that the outer gear ring 97 can drive the outer tube 96 to rotate clockwise or counterclockwise, and an inclined material guiding platform 98 is installed at the bottom of the outer tube 96.
[0027] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific work is as follows.
[0028] Step 1: The hydraulic motor 5 provides power to the reducer 4. Under the support of the guide wheel 7, the reducer 4 drives the mixing tank 6 to rotate at a low speed, and the mixing tank 6 mixes the concrete;
[0029] Step 2: Under the elastic force of the first spring 811, the turntable 83 rotates clockwise, and the inclined surface of the guide groove 84 squeezes the pin 86 inward, causing the slider 85 to move inward, allowing the roller 87 to contact the output shaft of the reducer 4. When the output shaft of the reducer 4 rotates eccentrically, it can squeeze the roller 87 outward, thereby causing the pin 86 to squeeze the guide groove 84 outward. At the same time, the turntable 83 rotates counterclockwise. Once the eccentricity is too large and exceeds the safety range, the positioning blind hole 812 on the turntable 83 passes through the telescopic rod 882. Under the elastic force of the second spring 883, the telescopic rod 882 enters the positioning blind hole 812, and the turntable 83 stays at the current position. The second contact 884 contacts the first contact 813, and the alarm light 82 lights up to alarm, indicating that the reducer 4 is damaged.
[0030] Step three, when unloading, the rolling concrete in the mixing tank 6 falls into the hopper 95. Driven by the motor 92, the driving gear 93 and the outer gear ring 97 transmit the transmission, so that the outer tube 96 can rotate clockwise or counterclockwise along the outer wall of the material pipe 94, changing the unloading direction of the material guide platform 98 to achieve accurate unloading of the concrete material.
[0031] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and is not intended to limit the present application, although the foregoing embodiments of the present application have been described in detail, for the skilled in the art, it still can be modified, or for the equivalent replacement of part of the technical features of the technical solutions recorded in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, shall be included within the scope of the present application.
Claims
1. A ready-mixed concrete conveying hopper device, comprising a base (1), a first bracket (2) and a second bracket (3), wherein the first bracket (2) and the second bracket (3) are respectively fixedly connected to the left and right ends of the upper surface of the base (1), characterized in that: Also includes: A reducer (4) is fixedly connected to the top of the first bracket (2); A hydraulic motor (5) is mounted on the left end of the reducer (4); A mixing tank (6) is mounted on the output shaft of the reducer (4); Two guide wheels (7) are respectively mounted on the front and rear ends of the top of the second bracket (3). The guide wheels (7) support the mixing tank (6). The mixing tank (6) is locked to the second bracket (3) with a strap to prevent the mixing tank (6) from falling. An eccentricity monitoring mechanism (8) is mounted on the right end of the first bracket (2); The material guiding mechanism (9) is fixedly connected to the top right end of the second bracket (3).
2. A ready-mixed concrete conveying hopper device according to claim 1, characterized in that: The eccentricity monitoring mechanism (8) comprises: A housing (81) is fixedly connected to the right end of the first bracket (2), and the housing (81) is hollow and annular; An alarm light (82) is mounted on the top of the housing (81); A turntable (83) is rotatably placed in the inner cavity of the housing (81), and a left side wall of the turntable (83) is provided with a plurality of guide grooves (84) at equal intervals along the circumferential direction; Slide blocks (85), the number of which is the same as the guide grooves (84), are inserted into the inner side of the housing (81) at equal intervals along the circumferential direction; A pin (86), one end of which is mounted on the outside of the slider (85) and the other end of which is inserted into the inner cavity of the guide groove (84); A roller (87) is mounted on the inner side of the slider (85), and the roller (87) can roll as the output shaft of the reducer (4) rotates; A latching assembly (88) embedded in the bottom of the housing (81); A receiving groove (89) is provided on the top of the left side wall of the turntable (83); A stopper (810) is mounted on the inner wall of the housing (81); A first spring (811) is inserted into the inner cavity of the receiving groove (89), and when blocked by the stopper (810), the elastic force of the first spring (811) can push the turntable (83) to rotate clockwise; A positioning blind hole (812) is provided at the bottom of the turntable (83); The first contact (813) is mounted on the top of the inner cavity of the positioning blind hole (812), and the first contact (813) is electrically connected to the alarm light (82).
3. A ready-mixed concrete conveying hopper device according to claim 2, characterized in that: The guide grooves (84) are obliquely distributed on the outer wall of the turntable (83).
4. A ready-mixed concrete conveying hopper device according to claim 2, characterized in that: The locking assembly (88) includes: A limiting cylinder (881) is embedded in the bottom of the housing (81); A telescopic rod (882) is inserted into the inner cavity of the limiting cylinder (881) so as to be slidable up and down; A second spring (883) is sleeved on the outer wall of the telescopic rod (882), and pushes the telescopic rod (882) upward under the elastic force of the second spring (883); The second contact (884) is mounted on the top of the telescopic rod (882), and the second contact (884) is externally connected to a power source.
5. A ready-mixed concrete conveying hopper device according to claim 4, characterized in that: The top of the telescopic rod (882) is triangular in shape.
6. A ready-mixed concrete conveying hopper device according to claim 1, characterized in that: The material guiding mechanism (9) comprises: A base plate (91) is fixedly connected to the top right end of the second bracket (3); A motor (92) is mounted on the left end of the upper surface of the substrate (91); A driving gear (93) is mounted on the output end of the motor (92); A material pipe (94) is mounted on the right end of the upper surface of the base plate (91); A hopper (95) is fixedly connected to the top of the feed pipe (94); An outer tube (96) is rotatably sleeved on the bottom end of the outer wall of the material tube (94); An outer gear ring (97) is mounted on the outer wall of the outer tube (96), and the outer gear ring (97) is meshed with the driving gear (93). The driving gear (93) is driven by the motor (92), so that the outer gear ring (97) drives the outer tube (96) to rotate; The material guide platform (98) is installed at the bottom end of the outer tube (96).
7. A ready-mixed concrete conveying hopper device according to claim 6, characterized in that: An annular protrusion is provided at the bottom of the outer wall of the material tube (94).