Proportionally adjustable three-component epoxy injection machine

Abstract

The utility model relates to grouting equipment technical field discloses a three -component epoxy grouting machine of adjustable proportion, including organism, organism is equipped with three containing different chemical component's feed bin, two feed bins pass through respective feed pump group and connect one -level mixed stirring unit, and another feed bin passes through corresponding feed pump group and connects two -level mixed stirring unit, and two -level mixed stirring unit and one -level mixed stirring unit downstream intercommunication. Every feed pump group contains at least two piston pumps, and the piston pump cylinder diameter of different feed pump groups is different, and each piston pump is driven connection through transmission mechanism and same driving mechanism. Transmission mechanism includes connecting rod and transmission disc, and connecting rod one end is rotatively connected with piston pump piston rod, and the other end is detachably connected with transmission disc, and transmission disc passes through transmission gear set and transmits force with driving mechanism, and at least one transmission disc opens a plurality of key holes along the radial direction, and the corresponding end of connecting rod is equipped with adaptive key pin. The utility model can adjust and control three -component mixing proportion without manual pre -adjustment, and is suitable for different engineering scene.

Description

Technical Field

[0001] This utility model relates to the field of grouting equipment technology, specifically to a three-component epoxy grouting machine with adjustable proportions. Background Technology

[0002] Epoxy grouting materials are widely used in engineering applications such as structural crack repair, foundation reinforcement, and waterproofing due to their advantages including high bonding strength, low shrinkage, and strong corrosion resistance. Three-component epoxy grouting materials typically consist of epoxy resin, a curing agent, and fillers. The mixing ratio directly determines the curing speed, mechanical properties, and construction durability of the grouting material. Different engineering scenarios or crack conditions have significantly different requirements for the component ratio; therefore, precise and flexible proportioning is a core prerequisite for ensuring grouting quality.

[0003] Most existing three-component epoxy grouting equipment adopts a fixed ratio design, with core parameters such as pump cylinder diameter and transmission ratio preset and fixed, making it impossible to directly adapt to different mixing ratio requirements. If the component ratio needs to be adjusted in a project, it is usually necessary to manually pre-mix the components according to the target ratio before injecting them into the equipment's feed hopper. This operation is not only time-consuming and labor-intensive, but manual mixing is also prone to metering errors and uneven mixing, leading to loss of control over the mixing ratio accuracy, which in turn affects the curing effect and mechanical properties of the grouting material. At the same time, the pre-mixed materials may react prematurely during the equipment transportation process, causing pipeline blockage or material performance degradation, which seriously restricts construction efficiency and project quality stability.

[0004] Therefore, there is an urgent need to develop a three-component epoxy grouting machine with adjustable proportions to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a three-component epoxy grouting machine with adjustable proportions, so as to solve the problem that the proportion adjustment of three-component epoxy grouting equipment in the prior art requires manual pre-mixing.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A three-component epoxy grouting machine with adjustable ratio includes a body, wherein the body is provided with three feed bins for accommodating three different chemical components. Two of the feed hoppers are connected to the primary mixing unit via a feed pump set, and the other feed hopper is connected to the secondary mixing unit via a feed pump set, and the secondary mixing unit is connected downstream of the primary mixing unit; Each of the feed pump groups includes at least two piston pumps. The piston pumps of different feed pump groups have different cylinder diameters. Each piston pump is connected to a drive mechanism through a transmission mechanism. The transmission mechanism includes a connecting rod and a transmission disc. One end of the connecting rod is rotatably connected to the piston rod of the piston pump, and the other end is detachably connected to the transmission disc. The transmission disc is connected to the drive mechanism via a transmission gear set. At least one of the transmission disks has multiple keyholes along its radial direction, and the end of each connecting rod connected to the transmission disk is provided with a key pin that matches the keyhole.

[0007] Preferably, each piston pump has a first check valve at its inlet end, the first check valve being open in the direction of material flowing from the corresponding feed hopper to the pump chamber of the piston pump; and each piston pump has a second check valve at its outlet end, the second check valve being open in the direction of material flowing from the pump chamber of the piston pump to the corresponding primary mixing unit or the secondary mixing unit.

[0008] Preferably, the primary mixing unit includes several mixing drums connected in series, with adjacent mixing drums connected by a box-type elbow; the structure of the secondary mixing unit is the same as that of the primary mixing unit.

[0009] Preferably, each of the aforementioned mixing drums is equipped with a spiral ribbon-type mixing blade.

[0010] Preferably, the three-component epoxy grouting machine with adjustable ratio further includes a discharge pipe, which is connected to the mixing drum at the downstream end of the secondary mixing unit.

[0011] Preferably, the three feed hoppers are an epoxy resin feed hopper, a curing agent feed hopper, and a filler feed hopper, and the corresponding feed pump sets are, in sequence, a first feed pump set, a second feed pump set, and a third feed pump set; the first feed pump set and the second feed pump set are connected to the primary mixing and stirring unit, and the third feed pump set is connected to the secondary mixing and stirring unit.

[0012] Preferably, the primary mixing unit and the secondary mixing unit are connected by a connecting pipe; the outlet of the third feed pump group is connected to the connecting pipe through a third one-way valve, and the conduction direction of the third one-way valve is that the material flows from the third feed pump group to the connecting pipe.

[0013] Preferably, the driving mechanism includes a drive motor and a drive gear. The drive motor is connected to the drive gear via a reducer, and the drive gear is connected to each of the transmission discs via the transmission gear set.

[0014] The beneficial effects of this utility model are: 1. This utility model can avoid manual pre-mixing of components by adjusting the preset piston pump cylinder diameter difference and the radial keyhole of the transmission plate. Only the connection position of the two transmission plates and connecting rods corresponding to the first feed pump group needs to be adjusted to achieve flexible control of the mixing ratio of the three components and adapt to the differentiated mixing ratio requirements of different engineering scenarios.

[0015] 2. This utility model adopts a two-stage mixing unit step-by-step mixing design. The epoxy resin and curing agent are fully reacted in the first-stage mixing unit and then mixed with the filler in the second-stage mixing unit. This can avoid the premature introduction of filler, which would hinder the dispersion of the reaction components. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the three-component epoxy grouting machine with adjustable proportions according to Embodiment 1 of this utility model; Figure 2 This is a front view of the three-component epoxy grouting machine with adjustable proportions in Embodiment 1 of this utility model, without the stroke adjustment door. Figure 3 This is a top view of the internal structure of the three-component epoxy grouting machine with adjustable proportions according to Embodiment 1 of this utility model. Figure 4 This is a front view schematic diagram of the three-component epoxy grouting machine with adjustable proportions according to Embodiment 1 of this utility model; Figure 5 This is a left-side schematic diagram of the primary mixing unit and the secondary mixing unit of the three-component epoxy grouting machine with adjustable proportions according to Embodiment 1 of this utility model. Figure 6 This is a right-side view of the primary and secondary mixing units of the three-component epoxy grouting machine with adjustable proportions according to Embodiment 1 of this utility model.

[0017] Reference numerals: 10-Main body, 21-Epoxy resin feed hopper, 22-Curing agent feed hopper, 23-Filler feed hopper, 24-Discharge port, 31-Driving gear, 32-Key pin, 33-First driven gear, 34-Intermediate gear set, 35-Second driven gear, 41-Pump chamber, 42-Piston rod, 43-Connecting rod, 44-Transmission disc, 45-Keyhole, 46-Key shaft, 47-Rotating shaft, 50-Discharge pipe, 61-First check valve, 62-Second check valve, 63-Third check valve, 71-Combination pipe, 72-Connecting pipe, 73-Box-type connecting elbow, 81-First mixing drum, 82-Second mixing drum, 83-Third mixing drum, 84-Fourth mixing drum, 85-Fifth mixing drum, 86-Sixth mixing drum, 87-Seventh mixing drum, 90-Stroke adjustment gate. Detailed Implementation

[0018] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0019] Example 1 like Figures 1 to 6 As shown in the figure, this embodiment discloses a three-component epoxy grouting machine with adjustable ratio, including a machine body 10. The top of the machine body 10 is fixed with three feeding bins, namely epoxy resin feeding bin 21, curing agent feeding bin 22 and filler feeding bin 23. The bottom of the bins is provided with a discharge port 24.

[0020] The epoxy resin feed hopper 21 is connected to the first feed pump group, the curing agent feed hopper 22 is connected to the second feed pump group, and the filler feed hopper 23 is connected to the third feed pump group. Each feed pump group includes two horizontally arranged piston pumps. The two piston pumps in the same feed pump group have the same cylinder diameter, while the piston pumps in different feed pump groups have different cylinder diameters. Specifically, the piston pump cylinder diameter of the first feed pump group is larger than that of the second feed pump group, and the piston pump cylinder diameter of the second feed pump group is larger than that of the third feed pump group. This difference in cylinder diameter allows for the preset basic mixing ratio of the three components.

[0021] Each piston pump is connected to a first check valve 61 at its inlet end. The first check valve 61 is open in the direction of material flow from the corresponding feed hopper to the pump chamber 41 of the piston pump, effectively preventing material backflow. Each piston pump is connected to a second check valve 62 at its outlet end. The second check valve 62 is open in the direction of material flow from the pump chamber 41 of the piston pump to the corresponding mixing and stirring unit, ensuring a stable feeding direction.

[0022] The outlets of the first and second feed pump sets are connected to the primary mixing unit via a junction pipe 71. The downstream of the primary mixing unit is connected to the input of the secondary mixing unit via a connecting pipe 72. The outlet of the third feed pump set is also connected to the secondary mixing unit via a connecting pipe 72. A third check valve 63 is connected in series on the pipe connecting the outlet of the third feed pump set to the connecting pipe 72. The third check valve 63 directs the material flow from the third feed pump set to the connecting pipe 72, preventing the mixture flowing from the primary mixing unit from flowing back into the third feed pump set.

[0023] Both the primary and secondary mixing units include several mixing drums connected in series. In this embodiment, the primary mixing unit has three mixing drums (a first mixing drum 81, a second mixing drum 82, and a third mixing drum 83 connected in series), and the secondary mixing unit has four mixing drums (a fourth mixing drum 84, a fifth mixing drum 85, a sixth mixing drum 86, and a seventh mixing drum 87 connected in series). Adjacent mixing drums are sealed together by box-type connecting elbows 73, with a rotation angle of 90°. Each mixing drum is equipped with a spiral ribbon agitator, the diameter of which is fitted with the inner diameter of the mixing drum to create a strong shearing and mixing effect on the materials. The discharge end of the downstream mixing drum of the secondary mixing unit is connected to a discharge pipe 50 via a flange.

[0024] Each piston pump is connected to the drive mechanism via an independent transmission mechanism. The transmission mechanism includes a connecting rod 43 and a transmission disc 44. One end of the connecting rod 43 is rotatably connected to the piston rod 42 of the piston pump via a rotating shaft 47, and the other end has a key pin 32 integrally formed. The transmission disc 44 is equivalent to a disc-shaped cam component, and the connecting rod 43 is the driven component. Together, they form a cam-like transmission structure.

[0025] In this embodiment, each of the two drive discs 44 of the first feed pump has three keyholes 45 along its radial direction (the distances of the three keyholes 45 from the center of the drive disc are 10cm, 15cm and 20cm respectively). The diameter of the keyholes 45 is adapted to the key pins 32. By selecting the keyholes 45 at different positions to cooperate with the key pins 32, the lever arm length of the connecting rod 43 can be adjusted, thereby changing the stroke of the piston pump; the two drive discs 44 of the other feed pump groups have only one keyhole 45.

[0026] It should be noted that the core technology for achieving synchronous reciprocating motion of two piston pumps in the same feed pump group lies in the coordinated cooperation between the assembly design of the connecting rod 43 and the transmission disk 44 and the keyhole 45 structure. Specifically, for the two piston pumps in the same feed pump group, the corresponding connecting rods 43 can be selectively assembled with keyholes 45 at different radial positions on the transmission disk 44 (it is not necessary to limit the extreme radial positions, it is only necessary to ensure that the assembly positions form a preset phase difference). This allows the connection point of one connecting rod 43 with the transmission disk 44 to be on the side away from the piston pump cavity 41, so as to realize the extension action of the piston rod 42; the connection point of the other connecting rod 43 with the transmission disk 44 to be on the side closer to the piston pump cavity 41, so as to realize the compression action of the piston rod 42. When the transmission disk 44 rotates synchronously, the phase difference formed by the differentiated assembly of the keyholes 45 will cause the two connecting rods 43 to have an opposite motion tendency, thereby driving the corresponding piston pump to complete synchronous reciprocating motion. At the same time, by means of the selection of the radial position of the keyholes 45, the dual technical effects of stroke adjustment and reverse motion can be achieved simultaneously.

[0027] For the second and third feed pump groups, although their corresponding transmission discs 44 are only equipped with a single keyhole 45, their reverse motion is still based on the design concept of assembly phase difference: during assembly, the keyholes 45 on the two transmission discs 44 of the same feed pump group can be set at different initial circumferential positions by rotating the transmission discs 44. That is, the keyhole 45 of one transmission disc 44 faces away from the piston pump chamber 41, and the keyhole 45 of the other transmission disc 44 faces closer to the piston pump chamber 41. The assembly phase difference is formed by this difference in circumferential angle. When the transmission disc 44 rotates in the same direction as the first driven gear 33, the two connecting rods 43 will generate reverse motion, thereby driving the corresponding piston pump to achieve synchronous reverse reciprocating motion, effectively ensuring the uniformity of the feed flow.

[0028] Meanwhile, in order to facilitate precise adjustment of the piston pump stroke of the first feed pump group, this embodiment provides a stroke adjustment door 90 on the outer side of the machine body 10 corresponding to the transmission disk 44 of the first feed pump group. The stroke adjustment door 90 is rotatably connected to the machine body 10 via a hinge. Its setting allows the operator to directly open the stroke adjustment door 90 to adjust the assembly position of the keyhole 45 of the transmission disk 44 without disassembling the entire outer shell of the machine body 10, further improving the convenience of equipment operation.

[0029] The drive mechanism includes a drive motor fixed to the bottom of the machine body 10. The output shaft of the drive motor is connected to the input end of the reducer via a coupling. The output shaft of the reducer is connected to the drive gear 31 (not shown in the figure) via a key. The transmission gear set includes a first driven gear 33 corresponding to each transmission disk 44. Each first driven gear 33 is fixedly connected to the central shaft of the corresponding transmission disk 44 via a key. Among the two first driven gears 33 corresponding to the first feed pump set, one of the first driven gears 33 meshes with the drive gear 31, and both first driven gears 33 mesh with a second driven gear 35, thereby realizing the transmission connection between the two first driven gears 33.

[0030] In addition, the drive gear 31 is coaxially fixed to the key shaft 46 via a flat key and rotates synchronously with the drive gear 31; two power output gears are also fixedly sleeved on the key shaft 46, corresponding to the power input of the second feed pump group and the third feed pump group respectively: one of the power output gears meshes with the first end gear of the intermediate gear group 34, which consists of two gears meshing in sequence, and its end gear meshes with one of the first driven gears 33 of the second feed pump group. The first driven gear 33 then meshes with a second driven gear 35, and the linkage with the other first driven gear 33 of the second feed pump group is achieved through the second driven gear 35; the power transmission method of the third feed pump group is completely the same as that of the second feed pump group.

[0031] Its specific working principle is as follows: According to the required three-component epoxy grouting material ratio for the project, the drive motor is started. The drive motor drives the drive gear 31 to rotate via the reducer. The drive gear 31 drives each transmission disc 44 to rotate synchronously via the transmission gear set. The transmission disc 44 drives the piston rod 42 of each piston pump to perform alternating reciprocating motion via the connecting rod 43. The epoxy resin and curing agent are respectively delivered to the primary mixing unit through the first feed pump group and the second feed pump group according to the preset ratio of cylinder diameter. After being fully mixed and reacted by the three series-connected mixing drums, they flow into the secondary mixing unit through the connecting pipe 72. At the same time, the filler is delivered to the connecting pipe 72 through the third feed pump group and enters the secondary mixing unit together with the epoxy resin-curing agent mixture for secondary mixing. Finally, the uniformly mixed grouting material is output to the grouting operation point through the discharge pipe 50.

[0032] If the mixing ratio needs to be adjusted, pull out the key pins 32 of the two connecting rods 43 corresponding to the first feed pump group from the current key hole 45 and insert them into the other key hole 45. After starting the equipment, the piston pump stroke of the first feed pump group changes, and the output flow rate of the epoxy resin changes, so as to achieve precise adjustment of the mixing ratio. No manual pre-mixing is required, and the operation is convenient and efficient. Table 1 shows the commonly used mixing ratio adjustment ratios in this embodiment and their corresponding key hole 45 positions.

[0033]

[0034] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A three-component epoxy grouting machine with adjustable proportions, comprising a machine body, characterized in that, The machine body is equipped with three feed chambers for containing three different chemical components; Two of the feed hoppers are connected to the primary mixing unit via a feed pump set, and the other feed hopper is connected to the secondary mixing unit via a feed pump set, and the secondary mixing unit is connected downstream of the primary mixing unit; Each of the feed pump groups includes at least two piston pumps. The piston pumps of different feed pump groups have different cylinder diameters. Each piston pump is connected to a drive mechanism through a transmission mechanism. The transmission mechanism includes a connecting rod and a transmission disc. One end of the connecting rod is rotatably connected to the piston rod of the piston pump, and the other end is detachably connected to the transmission disc. The transmission disc is connected to the drive mechanism via a transmission gear set. At least one of the transmission disks has multiple keyholes along its radial direction, and the end of each connecting rod connected to the transmission disk is provided with a key pin that matches the keyhole.

2. The three-component epoxy grouting machine with adjustable proportions according to claim 1, characterized in that, Each of the piston pumps is provided with a first check valve at its inlet end. The first check valve is open in the direction that the material flows from the corresponding feed bin to the pump chamber of the piston pump. Each piston pump is provided with a second check valve at its outlet end. The direction of the second check valve is such that the material flows from the pump chamber of the piston pump to the corresponding primary mixing unit or the secondary mixing unit.

3. The three-component epoxy grouting machine with adjustable proportions according to claim 1, characterized in that, Both the primary mixing unit and the secondary mixing unit include several mixing drums connected in series, with adjacent mixing drums connected by a box-type elbow.

4. The three-component epoxy grouting machine with adjustable proportions according to claim 3, characterized in that, Each of the aforementioned mixing drums is equipped with a spiral ribbon-type stirring paddle.

5. The three-component epoxy grouting machine with adjustable proportions according to claim 3, characterized in that, It also includes a discharge pipe, which is connected to the downstream mixing drum of the secondary mixing unit.

6. The three-component epoxy grouting machine with adjustable proportions according to claim 1, characterized in that, The three feed hoppers are epoxy resin feed hopper, curing agent feed hopper and filler feed hopper, and the corresponding feed pump sets are the first feed pump set, the second feed pump set and the third feed pump set, respectively. The first and second feed pump sets are connected to the primary mixing unit, and the third feed pump set is connected to the secondary mixing unit.

7. The three-component epoxy grouting machine with adjustable proportions according to claim 6, characterized in that, The primary mixing unit and the secondary mixing unit are connected by a connecting pipe; The outlet of the third feed pump unit is connected to the connecting pipe through a third one-way valve, and the conduction direction of the third one-way valve is such that the material flows from the third feed pump unit to the connecting pipe.

8. The three-component epoxy grouting machine with adjustable proportions according to claim 1, characterized in that, The drive mechanism includes a drive motor and a drive gear. The drive motor is connected to the drive gear via a reducer, and the drive gear is connected to each of the transmission discs via the transmission gear set.

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