Double-liquid grouting pump

Abstract

The invention belongs to the technical field of grouting pumps, and particularly relates to a double-liquid grouting pump which comprises a chassis, a crankcase and a pair of slurry cylinders. A motor and a gearbox are mounted on the chassis, and a first belt is connected between the motor and the gearbox; the crankcase is installed on the chassis, one side wall of the crankcase is rotationally connected with a first rotating shaft, a first gear is installed on the first rotating shaft, a second belt is connected between the first gear and the gearbox, a second rotating shaft and a pair of crankshaft mechanisms are rotationally connected into the crankcase, and one end of the second rotating shaft is fixedly connected with the first rotating shaft. A pair of second gears is mounted on the second rotating shaft, and is connected with a pair of crankshaft mechanisms respectively; the pair of slurry cylinders are both installed on the base plate and communicated with a feeding pipe and a discharging pipe. The feeding ratio of different sizing agents can be flexibly adjusted according to needs, so that the actual use requirements of workers are met, the workers can use the sizing agent conveniently, and meanwhile the use experience of the workers can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of grouting pumps, and in particular relates to a double-liquid grouting pump. Background Art

[0002] The double-liquid grouting pump is a device used for grouting in underground projects. It usually consists of two raw material tanks and a double pump. A gravity sensor is set at the bottom of each raw material tank, and a filter is set inside. The two liquid inlets of the double pump are connected to the filters in the two raw material tanks through pipes, and the liquid outlet is connected to the liquid mixer. When working, the two chemical slurries are respectively placed in the two raw material tanks. After starting, the double pump starts to work and the slurry enters the double pump. The opening of the electric regulating valve is adjusted by the PLC control system to achieve the mixing of the two chemical slurries in the liquid mixer before injection. Due to the characteristics of compact structure, stable performance, adjustable pressure displacement, small size, light weight, easy disassembly and transportation, the double-liquid grouting pump is widely used in tunnel excavation and maintenance, roads, bridges, dams, mines, foundation engineering of high-rise buildings and various grouting construction.

[0003] The Chinese invention patent with publication number: CN109404246A discloses a dual-liquid grouting pump, which includes a chassis, a diesel engine, a gearbox, a crankcase and two sets of grouting units. When in use, the diesel engine drives the crankshaft connecting rod to move through the gearbox, and the crankshaft connecting rod drives the piston assembly to perform linear reciprocating motion in the slurry cylinder, thereby realizing the suction and discharge of the slurry. However, since a pair of crankshaft connecting rods of the dual-liquid grouting pump are connected to the same gear and have the same length, the reciprocating speed of the pair of crankshaft connecting rods is the same, that is, the dual-liquid grouting pump has the same suction speed for different slurries. In other words, the dual-liquid grouting pump can only mix slurries of the same proportion, and cannot flexibly adjust other feed ratios, and there are certain limitations in use.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a double-liquid grouting pump.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide a double-liquid grouting pump, which can solve the problem that the double-liquid grouting pump cannot flexibly adjust the feed ratio.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0008] A double-liquid grouting pump comprises: a chassis, a crankcase and a pair of grout cylinders;

[0009] The chassis is provided with an electric motor and a gearbox, and a first belt is connected between the electric motor and the gearbox;

[0010] The crankcase is mounted on the chassis, a side wall of the crankcase is rotatably connected to a first rotating shaft, a first gear is mounted on the first rotating shaft, a second belt is connected between the first gear and the gearbox, a second rotating shaft and a pair of crankshaft mechanisms are rotatably connected in the crankcase, one end of the second rotating shaft is fixedly connected to the first rotating shaft, a pair of second gears are mounted on the second rotating shaft, and the pair of second gears are respectively connected to a pair of crankshaft mechanisms;

[0011] A pair of slurry cylinders are installed on the chassis, and a feed pipe and a discharge pipe are connected to the slurry cylinders. A piston is slidably provided in the slurry cylinders, and a piston rod is connected to the piston. One end of the piston rod located in the crankcase is connected to a crosshead, and the crosshead is connected to the crankshaft mechanism.

[0012] In one or more embodiments of the present invention, protective covers are provided on the outer sides of the first belt and the second belt, and the protective covers are used to protect the output end of the motor, the gearbox and the first gear.

[0013] In one or more embodiments of the present invention, the crankshaft mechanism includes a third rotating shaft, which is rotatably connected to the side wall of the crankcase, and a crankshaft disk is fixedly connected to the third rotating shaft, and the crankshaft disk is used to install a first adjusting plate and a second adjusting plate to adjust the rotation frequency and reciprocating distance of the crankshaft connecting rod, thereby respectively controlling the suction speeds of a pair of slurry cylinders, so that a pair of slurry cylinders can absorb slurry at different suction speeds, thereby achieving different feed ratios of slurry to meet the actual use needs of the staff, facilitate the staff to use, and also improve the staff's use experience.

[0014] In one or more embodiments of the present invention, a third gear is fixedly connected to the third rotating shaft, and the third gear is arranged on a side of the crankshaft disk close to the side wall of the crankcase. The third gear is meshed with the second gear. When the second gear rotates, the third gear can be driven to rotate through the meshing action, and then the third rotating shaft and the crankshaft disk can be driven to rotate, and then the fixed rod can be driven to rotate to realize the reciprocating movement of the crankshaft connecting rod. Since the crankshaft connecting rod is connected to the crosshead, the piston can be driven to reciprocate in the slurry cylinder, which is convenient for sucking and discharging the slurry.

[0015] In one or more embodiments of the present invention, a first adjustment plate is provided on a side of the crankshaft disc away from the third gear, and the first adjustment plate is used to adjust the position of the fixed rod so as to control the rotation frequency and reciprocating distance of the crankshaft connecting rod;

[0016] The first adjusting plate is provided with a first adjusting motor, an output end of the first adjusting motor is connected with a first screw rod, and when the first adjusting motor is running, the first adjusting motor can drive the first screw rod to rotate.

[0017] In one or more embodiments of the present invention, a first adjusting block is threadedly connected to the first screw rod, and a first adjusting groove matching the first adjusting block is provided on the first adjusting plate. When the first screw rod rotates, the first adjusting block can move in the first adjusting groove under the action of the thread.

[0018] In one or more embodiments of the present invention, a fixing rod is fixedly connected to the first adjusting block, and the fixing rod is used to fix the connecting sleeve, and the crankshaft connecting rod can be driven to reciprocate by the rotation of the fixing rod;

[0019] The side wall of the fixed rod is connected with a baffle, which contacts the first adjustment block and is used to block the connecting sleeve and the crankshaft connecting rod to prevent the crankshaft connecting rod from colliding with the crankshaft disk;

[0020] A connecting sleeve is provided on the outer side of the fixed rod, and a crankshaft connecting rod is connected to the connecting sleeve. The crankshaft connecting rod is connected to the crosshead. When the fixed rod rotates, the fixed rod can drive the crankshaft connecting rod to move back and forth through the connecting sleeve. Since the crankshaft connecting rod is connected to the crosshead, the crankshaft connecting rod can drive the piston to move back and forth in the slurry cylinder through the crosshead and the piston rod, so as to realize the suction and discharge of the slurry.

[0021] In one or more embodiments of the present invention, a fourth rotating shaft is rotatably connected at the center of the crankshaft disk, a second adjusting plate is connected to the fourth rotating shaft, and the second adjusting plate is arranged between the first adjusting plate and the crankshaft disk. Through the mutual cooperation of the fourth rotating shaft and the second adjusting plate, the rotation frequency and reciprocating distance of the crankshaft connecting rod can be further adjusted, so that a pair of slurry cylinders can adopt different suction speeds and flexibly adjust the feed ratio of different slurries.

[0022] In one or more embodiments of the present invention, an electric cylinder is installed in the second adjustment plate, and the crankshaft disk is provided with a plurality of positioning holes evenly distributed around the circumference. The free end of the electric cylinder is inserted into one of the positioning holes. When the free end of the electric cylinder is inserted into the positioning hole, the second adjustment plate can rotate along with the crankshaft disk; when the free end of the electric cylinder is disengaged from the positioning hole, the second adjustment plate and the crankshaft disk can rotate relative to each other to further adjust the position of the fixing rod, thereby controlling the reciprocating frequency and reciprocating distance of the crankshaft connecting rod.

[0023] In one or more embodiments of the present invention, a second adjusting motor is installed on the second adjusting plate, a second screw rod is connected to the output end of the second adjusting motor, a second adjusting block is threadedly connected to the second screw rod, a second adjusting groove matching the second adjusting block is provided in the second adjusting plate, the second adjusting block is fixedly connected to the first adjusting plate, when the second adjusting motor is running, the second adjusting motor can drive the second screw rod to rotate, since the second adjusting block is threadedly connected to the second screw rod, the second adjusting block can move in the second adjusting groove, and the second adjusting block is fixedly connected to the first adjusting plate, so that relative displacement can occur between the first adjusting plate and the second adjusting plate to increase the adjustable range of the fixed rod.

[0024] Compared with the prior art, the dual-liquid grouting pump of the present invention can flexibly adjust the feed ratio of different slurries as needed through the setting of corresponding mechanisms to meet the actual use needs of the staff, facilitate the use of the staff, and also improve the use experience of the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A three-dimensional diagram of a dual-liquid grouting pump in one embodiment of the present invention;

[0027] Figure 2 It is a top view of a partial cross-sectional view of a dual-liquid grouting pump in one embodiment of the present invention;

[0028] Figure 3 for Figure 2 Schematic diagram of the structure at A in the middle;

[0029] Figure 4 for Figure 2 Schematic diagram of the structure at B in the middle;

[0030] Figure 5 It is a side cross-sectional view of a crankshaft mechanism in one embodiment of the present invention;

[0031] Figure 6 for Figure 5 Schematic diagram of the structure at C in the middle;

[0032] Figure 7 for Figure 5 Schematic diagram of the structure at D in the middle;

[0033] Figure 8 for Figure 5 Schematic diagram of the structure at E in the middle;

[0034] Fig. 9 A first angle stereogram of a crankshaft mechanism in a first state in an embodiment of the present invention;

[0035] Fig.10 for Fig. 9 Schematic diagram of the structure at F in the middle;

[0036] Fig.11 A second angle stereogram of a crankshaft mechanism in a first state in an embodiment of the present invention;

[0037] Fig.12 It is a three-dimensional diagram of the crankshaft mechanism in the second state in one embodiment of the present invention;

[0038] Fig.13 It is a three-dimensional diagram of the crankshaft mechanism in the third state in one embodiment of the present invention.

[0039] Description of main reference numerals:

[0040] 1-chassis, 101-motor, 102-gearbox, 2-crankcase, 201-first rotating shaft, 202-second rotating shaft, 203-second gear, 204-third rotating shaft, 205-crankshaft disk, 206-third gear, 207-first adjusting plate, 208-first adjusting motor, 209-first screw rod, 210-first adjusting block, 211-fixing rod, 212-baffle, 213-connecting sleeve, 214-crankshaft connecting rod, 215-fourth rotating shaft, 216-second adjusting plate, 217-electric cylinder, 218-positioning hole, 219-second adjusting motor, 220-second screw rod, 221-second adjusting block, 222-control unit, 3-slurry cylinder, 301-feed pipe, 302-discharge pipe, 303-piston rod, 304-crosshead. DETAILED DESCRIPTION

[0041] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0042] like Figures 1 to 13 As shown, a dual-liquid grouting pump in an embodiment of the present invention includes a chassis 1, a crankcase 2 and a pair of slurry cylinders 3.

[0043] The chassis 1 is provided with a motor 101 and a gearbox 102, and a first belt is connected between the motor 101 and the gearbox 102. When the motor 101 is running, the motor 101 drives the gearbox 102 to run through the first belt.

[0044] Preferably, the motor 101 and the gearbox 102 are both commercially available products and can be purchased and used directly.

[0045] like Figures 1 to 13 As shown, the crankcase 2 is installed on the chassis 1, and the crankcase 2 is used to install the crankshaft mechanism so that the crankshaft mechanism can be used to drive the piston 303 in the slurry cylinder 3 to move back and forth, thereby realizing the suction and discharge operations.

[0046] A side wall of the crankcase 2 is rotatably connected to a first rotating shaft 201, a first gear is mounted on the first rotating shaft 201, and a second belt is connected between the first gear and the gearbox 102. When the gearbox 102 is running, the gearbox 102 can drive the first gear and the first rotating shaft 201 to rotate through the second belt.

[0047] In addition, a second rotating shaft 202 and a pair of crankshaft mechanisms are rotatably connected in the crankcase 2. One end of the second rotating shaft 202 is fixedly connected to the first rotating shaft 201. A pair of second gears 203 are installed on the second rotating shaft 202. The pair of second gears 203 are respectively connected to the pair of crankshaft mechanisms. When the first rotating shaft 201 rotates, the first rotating shaft 201 can drive the second rotating shaft 202 and the second gear 203 to rotate. Since the second gear 203 is meshed with the crankshaft mechanism, the second gear 203 can drive the crankshaft mechanism to rotate.

[0048] Preferably, the installation position of a pair of crankshaft mechanisms is as follows: Figure 2 As shown, a pair of crankshaft mechanisms correspond to a pair of slurry cylinders 3 and are respectively installed on the side walls of a pair of crankcases 2.

[0049] like Figures 1 to 13 As shown, the crank mechanism includes a third rotating shaft 204, which is rotatably connected to the side wall of the crankcase 2, and a crankshaft disk 205 is fixedly connected to the third rotating shaft 204. The crankshaft disk 205 is used to install the first adjustment plate 207 and the second adjustment plate 216, so as to adjust the rotation frequency and reciprocating process distance of the crankshaft connecting rod 214, and then respectively control the suction speed of a pair of slurry cylinders 3, so that a pair of slurry cylinders 3 can absorb slurry at different suction speeds, thereby achieving different slurry feed ratios, so as to meet the actual use needs of the staff, facilitate the use of the staff, and also improve the use experience of the staff.

[0050] The third rotating shaft 204 is fixedly connected with a third gear 206, which is disposed on a side of the crankshaft disc 205 close to the side wall of the crankcase 2, and the third gear 206 is meshed with the second gear 203, that is, Figure 2 As shown. When the second gear 203 rotates, the third gear 206 can be driven to rotate through meshing, and then the third rotating shaft 204 and the crankshaft disk 205 can be driven to rotate. Since the fixed rod 211 is installed on the crankshaft disk 205 through the first adjustment plate 207, the fixed rod 211 will rotate to achieve the reciprocating movement of the crankshaft connecting rod 214. Since the crankshaft connecting rod 214 is connected to the crosshead 304, it can drive the piston 303 to reciprocate in the slurry cylinder 3, which is convenient for sucking and discharging slurry.

[0051] In addition, a first adjustment plate 207 is provided on a side of the crankshaft disk 205 away from the third gear 206 . The first adjustment plate 207 is used to adjust the position of the fixing rod 211 so as to control the rotation frequency and reciprocating distance of the crankshaft connecting rod 214 .

[0052] Specifically, a first adjusting motor 208 is installed on the first adjusting plate 207 , and an output end of the first adjusting motor 208 is connected to a first screw rod 209 . When the first adjusting motor 208 is running, the first adjusting motor 208 can drive the first screw rod 209 to rotate.

[0053] In addition, the first screw rod 209 is threadedly connected with a first adjusting block 210, and the first adjusting plate 207 is provided with a first adjusting groove matching the first adjusting block 210. When the first screw rod 209 rotates, the first adjusting block 210 can move in the first adjusting groove under the action of the thread.

[0054] like Fig.11 , Fig.12 and Fig.13 Different positions of the fixing rod 211 are shown respectively. Fig.11 When the crankshaft connecting rod 214 is in the position shown, the reciprocating frequency of the crankshaft connecting rod 214 is the fastest and the reciprocating stroke distance is the longest. Fig.12 When the crankshaft connecting rod 214 is in the position shown in FIG. Fig.13 In the position shown, the reciprocating frequency of the crankshaft connecting rod 214 is relatively slow, and the reciprocating stroke distance is relatively short.

[0055] Based on this, when a pair of slurry cylinders 3 need a 1:1 ratio of slurry, the pair of fixed rods 211 are adjusted to Fig.11 As shown in the position, the reciprocating frequency of a pair of crankshaft connecting rods 214 is the same, and the reciprocating stroke distance is also the same, that is, a pair of slurry cylinders 3 adopt the same material suction speed.

[0056] When a pair of slurry cylinders 3 need a slurry ratio of 7:1, one of the fixed rods 211 is adjusted to Fig.11 The other fixing rod 211 is adjusted to the position shown in FIG. Fig.13 As shown in the position, since the position of the pair of fixed rods 211 is different, the reciprocating frequencies of the pair of crankshaft connecting rods 214 are different, and the reciprocating stroke distances are also different, that is, the pair of slurry cylinders 3 can mix the slurry at a mixing speed of 7:1.

[0057] Alternatively, one of the fixing rods 211 is adjusted to Fig.11 The other fixing rod 211 is adjusted to the position shown in FIG. Fig.12 The position shown. Fig.11 After the fixing rod 211 shown in the figure reciprocates for 6 cycles, the fixing rod 211 is readjusted to Fig.11 In the position shown, a pair of slurry cylinders 3 can also mix the slurry at a mixing speed of 7:1.

[0058] The first adjusting block 210 is fixedly connected with a fixing rod 211, and the fixing rod 211 is used to fix the connecting sleeve 213. The rotation of the fixing rod 211 can drive the crankshaft connecting rod 214 to reciprocate. The side wall of the fixing rod 211 is connected with a baffle 212, which contacts the first adjusting block 210 and is used to block the connecting sleeve 213 and the crankshaft connecting rod 214, so as to prevent the crankshaft connecting rod 214 from colliding with the crankshaft disk 205.

[0059] In addition, a connecting sleeve 213 is sleeved on the outer side of the fixed rod 211, and a crankshaft connecting rod 214 is connected to the connecting sleeve 213, and the crankshaft connecting rod 214 is connected to the crosshead 304. When the fixed rod 211 rotates, the fixed rod 211 can drive the crankshaft connecting rod 214 to reciprocate through the connecting sleeve 213. Since the crankshaft connecting rod 214 is connected to the crosshead 304, the crankshaft connecting rod 214 can drive the piston 303 to reciprocate in the slurry cylinder 3 through the crosshead 304 and the piston rod, so as to realize the suction and discharge of slurry.

[0060] like Figures 1 to 13 As shown, the center of the crankshaft disk 205 is rotatably connected with a fourth shaft 215, and the fourth shaft 215 is connected with a second adjustment plate 216, and the second adjustment plate 216 is arranged between the first adjustment plate 207 and the crankshaft disk 205. Through the cooperation between the fourth shaft 215 and the second adjustment plate 216, the rotation frequency and reciprocating distance of the crankshaft connecting rod 214 can be further adjusted, that is, the pair of first adjustment plates 207 can be staggered to form a certain angle. Fig.11 When in the position shown, due to the storage of the angle between the pair of first adjustment plates 207, the pair of slurry cylinders 3 will also absorb the slurry at different suction speeds, so as to achieve the effect of flexibly adjusting the feed ratio of different slurries.

[0061] The second adjustment plate 216 is provided with an electric cylinder 217, and the crankshaft disk 205 is provided with a plurality of positioning holes 218 evenly distributed around the circumference, and the free end of the electric cylinder 217 is inserted into one of the positioning holes 218. When the free end of the electric cylinder 217 is inserted into the positioning hole 218, the second adjustment plate 216 can rotate along with the crankshaft disk 205. When the free end of the electric cylinder 217 is separated from the positioning hole 218, due to inertia, the second adjustment plate 216 will not rotate along with the crankshaft disk 205, so the second adjustment plate 216 and the crankshaft disk 205 can rotate relative to each other, so as to further adjust the position of the fixing rod 211, so that a pair of first adjustment plates 207 can form a certain angle, and then the reciprocating frequency and reciprocating distance of the crankshaft connecting rod 214 can be controlled.

[0062] like Figures 1 to 13 As shown, a second adjusting motor 219 is installed on the second adjusting plate 216, and a second screw rod 220 is connected to the output end of the second adjusting motor 219. A second adjusting block 221 is threadedly connected to the second screw rod 220. A second adjusting groove matching the second adjusting block 221 is provided in the second adjusting plate 216, and the second adjusting block 221 is fixedly connected to the first adjusting plate 207.

[0063] When the second adjusting motor 219 is running, the second adjusting motor 219 can drive the second screw rod 220 to rotate. Since the second adjusting block 221 is threadedly connected to the second screw rod 220, the second adjusting block 221 can move in the second adjusting groove. The second adjusting block 221 is fixedly connected to the first adjusting plate 207, so that the first adjusting plate 207 and the second adjusting plate 216 can be relatively displaced to increase the adjustable range of the fixing rod 211, that is, Fig.13 Status shown.

[0064] Wherein, protective covers are provided on the outer sides of the first belt and the second belt, and the protective covers are used to protect the output end of the motor 101, the gearbox 102 and the first gear.

[0065] In addition, a control unit 222 is installed in the crankshaft disk 205, and the first adjustment motor 208, the electric cylinder 217, and the second adjustment motor 219 are all electrically connected to the control unit 222. A control box is installed on the chassis 1, and the control unit 222 is wirelessly connected to the control box, so that the operation of the first adjustment motor 208, the electric cylinder 217, and the second adjustment motor 219 can be controlled by the control box to achieve position adjustment of the fixing rod 211.

[0066] Specifically, an angle sensor and a displacement distance sensor are installed on the side wall of the crankcase 2. The angle sensor and the displacement distance sensor correspond to the fixed rod 211 and are used to monitor the movement of the fixed rod 211 so as to accurately locate the position of the fixed rod 211, so that a pair of slurry cylinders 3 can use different suction speeds to mix the slurry.

[0067] like Figures 1 to 13 As shown, a pair of slurry cylinders 3 are installed on the chassis 1, and the slurry cylinders 3 are connected with a feed pipe 301 and a discharge pipe 302. When the piston 303 reciprocates in the slurry cylinder 3, the slurry enters the slurry cylinder 3 through the feed pipe 301 and is discharged through the discharge pipe 302.

[0068] Among them, a piston 303 is slidably provided in the slurry cylinder 3, and a piston rod is connected to the piston 303. One end of the piston rod located in the crankcase 2 is connected to a crosshead 304, and the crosshead 304 is connected to the crankshaft connecting rod 214. When the crankshaft connecting rod 214 reciprocates, the crankshaft connecting rod 214 can drive the piston 303 to reciprocate in the slurry cylinder 3 through the crosshead 304 and the piston rod, so as to absorb and discharge the slurry.

[0069] When in use, the motor 101 is operated, and the motor 101 drives the gearbox 102 to operate through the first belt, and the gearbox 102 drives the first gear and the first rotating shaft 201 to rotate through the second belt. The first rotating shaft 201 drives a pair of second gears 203 to rotate through the second rotating shaft 202. The second gear 203 can drive the third gear 206 to rotate through meshing, and then drive the third rotating shaft 204 and the crankshaft disk 205 to rotate. Since the fixed rod 211 is installed on the crankshaft disk 205 through the first adjustment plate 207, the fixed rod 211 will rotate to achieve the reciprocating movement of the crankshaft connecting rod 214. The crankshaft connecting rod 214 will drive the piston 303 to reciprocate in the slurry cylinder 3 through the crosshead 304 and the piston rod. When the piston 303 approaches the crankcase 2, a negative pressure state is formed in the slurry cylinder 3, and the slurry enters the slurry cylinder 3 through the feed pipe 301. When the piston 303 is away from the crankcase 2, the slurry in the slurry cylinder 3 is discharged through the discharge pipe 302, and this cycle is repeated to achieve the absorption and discharge of the slurry, which is convenient for the staff to perform grouting operations.

[0070] When the ratio of different slurries in a pair of slurry cylinders 3 needs to be adjusted, the position of the fixed rod 211 can be controlled. Specifically, when a pair of slurry cylinders 3 need a 1:1 ratio of slurry, the pair of fixed rods 211 are adjusted to Fig.11 The position shown in the figure, and there is no angle between the pair of first adjustment plates 207, then the reciprocating frequency of the pair of crankshaft connecting rods 214 can be the same, and the reciprocating stroke distance is also the same, that is, the pair of slurry cylinders 3 can use the same suction speed to absorb the slurry, so that the feeding speed in the pair of slurry cylinders 3 is the same each time, achieving a 1:1 ratio.

[0071] When a pair of slurry cylinders 3 need to mix slurry in other ratios, such as 7:1, first adjust one of the fixed rods 211 to Fig.11 The other fixing rod 211 is adjusted to the position shown in FIG. Fig.13 When adjusting the fixing rod 211, the electric cylinder 217 is first controlled to retract so that the free end of the electric cylinder 217 is out of engagement with the positioning hole 218. When the pair of first adjustment plates 207 form an angle of 180°, the electric cylinder 217 is extended and inserted into the positioning hole 218, and the first adjustment motor 208 and the positioning hole 218 are controlled to operate at the same time, so that the first adjustment block 210 and the second adjustment block 221 are both moved toward the direction of the first adjustment motor 208. When the fixing rod 211 is in Fig.13 When the first adjusting motor 208 and the positioning hole 218 are stopped, the first adjusting motor 208 and the positioning hole 218 are stopped. Fig.11 and Fig.13 As shown in the position, the reciprocating frequencies of a pair of crankshaft connecting rods 214 are different, and the reciprocating stroke distances are also different, that is, a pair of slurry cylinders 3 can be used to mix slurry according to other ratios, such as a ratio of 7:1.

[0072] Alternatively, one of the fixing rods 211 is adjusted to Fig.11 The other fixing rod 211 is adjusted to the position shown in FIG. Fig.12 The position shown is the center position of the crankshaft disk 205. The crankshaft connecting rod 214 at the center position of the crankshaft disk 205 will not reciprocate. Fig.11 After the fixed rod 211 shown in the figure reciprocates for 6 cycles, the fixed rod 211 at the center position of the crankshaft disk 205 is readjusted to Fig.11 The position shown can also allow a pair of slurry cylinders 3 to mix the slurry in a ratio of 7:1.

[0073] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0074] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. Double-liquid grouting pump, characterized in that: include: A chassis, on which a motor and a gearbox are mounted, and a first belt is connected between the motor and the gearbox; A crankcase is mounted on the chassis, a side wall of the crankcase is rotatably connected to a first rotating shaft, a first gear is mounted on the first rotating shaft, a second belt is connected between the first gear and the gearbox, a second rotating shaft and a pair of crankshaft mechanisms are rotatably connected in the crankcase, one end of the second rotating shaft is fixedly connected to the first rotating shaft, a pair of second gears are mounted on the second rotating shaft, and the pair of second gears are respectively connected to a pair of crankshaft mechanisms; A pair of slurry cylinders are both installed on the chassis, the slurry cylinders are connected with a feed pipe and a discharge pipe, a piston is slidably provided in the slurry cylinder, a piston rod is connected to the piston, one end of the piston rod located in the crankcase is connected to a crosshead, and the crosshead is connected to the crankshaft mechanism.

2. The dual-liquid grouting pump according to claim 1, characterized in that: The outer sides of the first belt and the second belt are both provided with protective covers.

3. The dual-liquid grouting pump according to claim 1, characterized in that: The crank mechanism comprises a third rotating shaft, the third rotating shaft is rotatably connected to the side wall of the crankcase, and a crank disk is fixedly connected to the third rotating shaft.

4. The dual-liquid grouting pump according to claim 3, characterized in that: The third rotating shaft is fixedly connected with a third gear, the third gear is arranged on a side of the crankshaft disk close to the crankcase side wall, and the third gear is meshed with the second gear.

5. The dual-liquid grouting pump according to claim 4, characterized in that: A first adjusting plate is provided on a side of the crankshaft disc away from the third gear, a first adjusting motor is mounted on the first adjusting plate, and a first screw rod is connected to an output end of the first adjusting motor.

6. The dual-liquid grouting pump according to claim 5, characterized in that: A first adjusting block is threadedly connected to the first screw rod, and a first adjusting groove matching the first adjusting block is provided on the first adjusting plate.

7. The dual-liquid grouting pump according to claim 6, characterized in that: A fixing rod is fixedly connected to the first adjusting block, a baffle is connected to the side wall of the fixing rod, the baffle is in contact with the first adjusting block, a connecting sleeve is sleeved on the outer side of the fixing rod, a crankshaft connecting rod is connected to the connecting sleeve, and the crankshaft connecting rod is connected to the crosshead.

8. The dual-liquid grouting pump according to claim 7, characterized in that: A fourth rotating shaft is rotatably connected at the center of the crankshaft disc, a second adjusting plate is connected to the fourth rotating shaft, and the second adjusting plate is arranged between the first adjusting plate and the crankshaft disc.

9. The dual-liquid grouting pump according to claim 8, characterized in that: An electric cylinder is installed in the second adjustment plate, a plurality of positioning holes evenly distributed around the circumference are arranged on the crankshaft disk, and the free end of the electric cylinder is inserted into one of the positioning holes.

10. The dual-liquid grouting pump according to claim 9, characterized in that: A second adjusting motor is installed on the second adjusting plate, a second screw rod is connected to the output end of the second adjusting motor, a second adjusting block is threadedly connected to the second screw rod, a second adjusting groove matching the second adjusting block is provided in the second adjusting plate, and the second adjusting block is fixedly connected to the first adjusting plate.

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