Extrusion pump capable of adjusting pressure in screw mode

Abstract

The utility model relates to the technical field of grouting pumps, and discloses an extrusion pump for adjusting pressure in a screw mode, which comprises an extrusion pump shell, an extrusion pipe, a central shaft, a tripod, a guide groove, a recovery wheel, an extrusion wheel and an adjusting structure. According to the extrusion pump capable of adjusting the pressure in the screw mode, by arranging the adjusting structure, the output pressure of equipment can be adjusted at will within the rated output pressure range according to the requirement of a construction site, when the construction pressure is not too high, the extrusion pipe is in a low-extrusion-amount working state, the service life of the extrusion pipe can be prolonged, and when the construction pressure is needed to be high, the extrusion pipe is in a low-extrusion-amount working state. The required working pressure can be obtained by adjusting the height of the extrusion wheel, when the output pressure of equipment is too low after the extrusion pipe is subjected to fatigue deformation for a certain time, the output pressure of the equipment can be improved by adjusting the height of the extrusion wheel, replacement of a new extrusion pipe is avoided, the working efficiency is improved, and the construction cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to grouting pump technical field, concretely is a kind of extrusion pump of screw rod mode pressure regulating. BACKGROUND

[0002] Extrusion grouting pump is a kind of equipment for transporting slurry by extrusion principle, and is widely used in mine roadway, iron highway tunnel, hydroelectric engineering, rock-soil slope, underground engineering, subway and municipal construction and other grouting operations.

[0003] In the tripod assembly of the existing extrusion grouting pump, the extrusion wheel is a circular structure, and can only rotate around its center. The distance from the center of the extrusion wheel to the center of rotation of the tripod is fixed, that is, the distance from the outer edge of the extrusion wheel to the inner wall of the pump head is fixed. Due to the deviation of the machining size of the tripod and the wall thickness size of the rubber extrusion pipe, the compression rate of the extrusion pipe during the operation of the extrusion pump is different, and the output pressure of the extrusion pump cannot be adjusted according to the required pressure of the construction site. If the compression amount is set too small, the material will backflow in the extrusion pipe during the operation of the extrusion pump, causing insufficient discharge pressure and affecting normal use of the customer. If the compression amount of the extrusion pipe is set too large, the extrusion pipe will work in a high-pressure state when high-pressure output is not required during construction, which will significantly reduce the service life of the extrusion pipe. SUMMARY

[0004] (I) Technical problem solved

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides an extrusion pump with screw rod mode pressure regulation, which solves the problems in the prior art that:

[0006] Because the distance from the extrusion wheel to the inner wall of the pump head is not adjustable, when the output pressure of the extrusion pump cannot meet the construction requirements after the extrusion pipe has been used for a certain period of time, the extrusion pipe needs to be replaced, causing a certain degree of waste and increasing the construction cost.

[0007] (II) Technical scheme

[0008] In order to achieve the above-mentioned purposes, the utility model is implemented by the following technical scheme: an extrusion pump with screw rod mode pressure regulation, comprising an extrusion pump shell, an extrusion pipe for conveying is clamped in the inside of the extrusion pump shell, a center shaft for supporting is rotatably installed in the inside of the extrusion pump shell, a triangular support for connection is movably installed on the outer surface of both ends of the center shaft, a guide groove is formed in the middle of each triangle of the triangular support, a reset wheel is rotatably installed on the middle of each side of the triangular support, an extrusion wheel is movably installed on one side of the inside of the triangular support, and an adjusting structure is arranged on the other side of the outside of the triangular support, wherein:

[0009] The adjusting structure comprises a supporting seat, an adjusting screw, a fixing seat, a back nut and a hexagon, the fixing seat is arranged on one side of the tripod by welding, the adjusting screw is threadedly connected to the inside of the fixing seat for adjusting, one end of the adjusting screw is provided with the supporting seat for supporting, the other end of the adjusting screw is provided with the hexagon for adjusting, and the end of the adjusting screw provided with the hexagon is threadedly connected with the back nut for fixing.

[0010] Optionally, one side of the extrusion pump shell is fixedly provided with a baffle for blocking, and a fixed disc is fixedly arranged on the middle of one side of the baffle.

[0011] Optionally, the outer surface of one end of the central shaft is provided with a first bearing for reducing friction, and the outer surface of the other end of the central shaft is provided with a second bearing for reducing friction.

[0012] Optionally, the middle of the recovery wheel is provided with a recovery roller shaft for supporting, one end of the recovery roller shaft is arranged on one side of the tripod, the outer surface of the recovery roller shaft is provided with two third bearings for rotating, and the outer surface of the third bearing is arranged in the inside of the recovery wheel for supporting rotation of the recovery wheel.

[0013] Optionally, the middle of the extrusion wheel is provided with a concentric shaft for connecting and supporting, the two ends of the concentric shaft are provided with extrusion shafts for supporting, the outer surface of the concentric shaft is provided with fourth bearings at both ends, and the outer surface of the fourth bearing is arranged in the inside of the extrusion wheel for supporting rotation of the extrusion wheel.

[0014] (Three) beneficial effects

[0015] The utility model provides a kind of extrusion pump of screw rod mode pressure regulating, with following beneficial effects:

[0016] 1, the extrusion pump of screw rod mode pressure regulating, by being provided with adjusting structure, can be adjusted equipment output pressure in rated output pressure range as needed, when construction pressure does not need too high, extrusion pipe is in low extrusion amount working state, can extend extrusion pipe service life, when construction pressure needs higher, the height of extrusion wheel can be adjusted to obtain required working pressure, when extrusion pipe is fatigued deformation after a certain time, equipment output pressure is too low, the height of extrusion wheel can be adjusted to improve equipment output pressure, avoid replacing new extrusion pipe, improve work efficiency, reduce construction cost.

[0017] 2、The screw mode pressure regulating extrusion pump is provided with an adjusting structure, and the original installation state is to adjust the extrusion wheel to the lowest point, that is, the output pressure of the extrusion pump is minimum, when the pressure required by the construction site of the customer can be met, the height of the extrusion wheel does not need to be adjusted, so that the service life of the extrusion pipe can be prolonged, but when the customer requires higher output pressure, the customer can loosen the adjusting back nut and rotate the screw, so that the height of the extrusion wheel is adjusted, and greater output pressure can be obtained, but it should be noted that the three extrusion wheels must be adjusted simultaneously and equally to achieve the best effect. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of the utility model;

[0019] Figure 2 It is a structural schematic diagram of the utility model in working state;

[0020] Figure 3 It is a structural schematic diagram of the utility model Figure 1 It is a structural schematic diagram of the utility model after adding a baffle;

[0021] Figure 4 It is a structural schematic diagram of the utility model in section;

[0022] Figure 5 It is a structural schematic diagram of the utility model in high pressure state;

[0023] Figure 6 It is a structural schematic diagram of the utility model in low pressure state.

[0024] In the drawing: 1, extrusion pump shell; 101, baffle; 102, fixed disc; 2, tripod; 3, center shaft; 301, first bearing; 302, second bearing; 4, guide groove; 5, reset wheel; 501, reset roller shaft; 502, third bearing; 6, extrusion wheel; 601, concentric shaft; 602, extrusion shaft; 603, fourth bearing; 7, adjusting structure; 701, support seat; 702, adjusting screw; 703, fixed seat; 704, back nut; 705, hexagon; 8, extrusion pipe. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] Embodiment one:

[0027] Please refer to Figures 1 to 6The utility model provides a technical scheme: a kind of screw mode pressure regulating extrusion pump, to protect internal device when using, be provided with device extrusion pump shell 1;

[0028] Including extrusion pump shell 1, the side fixed mounting of extrusion pump shell 1 is used for the baffle 101 for blocking, the side middle part fixed mounting of baffle 101 is fixed disc 102, therefore the setting of baffle 101, it is applicable to the side of pressurized pump shell is blocked, when needing to adjust, it can be removed and is adjusted, increase the practicality of device, the setting of fixed disc 102, for auxiliary baffle 101 is closed.

[0029] Example two:

[0030] To ensure normal use of device, be provided with device extrusion pipe 8, central shaft 3, tripod 2, guide slot 4, recovery wheel 5 and extrusion wheel 6;

[0031] Extrusion pipe 8 for conveying is connected in the inside of extrusion pump shell 1, the central shaft 3 for supporting is rotatably installed in the inside of extrusion pump shell 1, the outer surface both ends of central shaft 3 movably install the tripod 2 for connection, the guide slot 4 is all set up in the triangular middle part of tripod 2, the recovery wheel 5 is rotatably installed in the three middle parts of tripod 2, the inside one side movable mounting of tripod 2 is extrusion wheel 6, the outer surface of one end of central shaft 3 is provided with the first bearing 301 for reducing friction, the outer surface of the other end of central shaft 3 is provided with the second bearing 302 for reducing friction, the middle part of recovery wheel 5 is provided with the recovery roller shaft 501 for supporting, one end of recovery roller shaft 501 is set to one side of tripod 2, the outer surface of recovery roller shaft 501 is provided with two third bearings 502 for rotating, the outer surface of third bearing 502 is set to the inside of recovery wheel 5, for supporting recovery wheel 5 rotation, the middle part of extrusion wheel 6 is provided with the concentric shaft 601 for connecting support, the both ends of concentric shaft 601 are provided with the extrusion shaft 602 for supporting, the outer surface both ends of concentric shaft 601 are provided with the fourth bearing 603, the outer surface of fourth bearing 603 is set to the inside of extrusion wheel 6, for supporting extrusion wheel 6 rotation, therefore the setting of first bearing 301 and second bearing 302, for reducing the friction of central shaft 3 in the inside of extrusion pump shell 1 rotation, the role of recovery wheel 5 is auxiliary extrusion pipe 8 can smoothly recover after being extruded, the setting of recovery roller shaft 501, for supporting and facilitating recovery wheel 5 rotation, the setting of third bearing 502, is used to reduce the friction when rotating, the setting of concentric shaft 601, for providing stable support, the setting of extrusion shaft 602, for facilitating adjustment structure 7 to adjust extrusion wheel 6, increase the controllability of device.

[0032] Example three:

[0033] In order to adjust the extrusion wheel 6, so as to change the output pressure, the device adjusting structure 7 is arranged;

[0034] The outer side of the tripod 2 is provided with the adjusting structure 7, wherein: the adjusting structure 7 comprises a supporting seat 701, an adjusting screw 702, a fixing seat 703, a back nut 704 and a hex 705, the fixing seat 703 is arranged on the outer side of the tripod 2 by welding, the inside of the fixing seat 703 is threadedly connected with the adjusting screw 702 for adjusting, one end of the adjusting screw 702 is provided with the supporting seat 701 for supporting, the other end of the adjusting screw 702 is provided with the hex 705 for adjusting, the end of the adjusting screw 702 provided with the hex 705 is threadedly connected with the back nut 704 for fixing, therefore, the fixing seat 703 is arranged on one side of the tripod 2, for providing a stable working environment, one end of the adjusting screw 702 is provided with the supporting seat 701, and the other end of the adjusting screw 702 is provided with the hex 705, the adjusting screw 702 and the supporting seat 701 can extrude the extrusion shaft 602 by twisting the hex 705, so as to adjust the position of the extrusion wheel 6, and the back nut 704 is arranged for fixing the adjusting screw 702 after adjustment, thereby increasing the stability of the device.

[0035] In the utility model, the working steps of the device are as follows:

[0036] Firstly, when the adjusting structure 7 needs to be adjusted, the extrusion shaft 602 mounting hole of the tripod 2 is a long strip type guide groove 4, the extrusion shaft 602 can slide in the guide groove 4, the fixing seat 703 is welded and fixed at a specific position of the tripod 2, the hex 705 at the end of the adjusting screw 702 is twisted to drive the adjusting screw 702 to rotate, the rotation of the adjusting screw 702 relative to the fixing seat 703 drives the supporting seat 701 and the extrusion shaft 602 to move in the guide groove 4 of the tripod, and after being adjusted to a suitable position, the back nut 704 can be tightened to complete the adjustment and fixation, and the operation is convenient.

[0037] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A screw-type pressure regulating extrusion pump comprising an extrusion pump housing, characterized by: The inside of the extrusion pump shell is clamped with an extrusion pipe for conveying, the inside of the extrusion pump shell is rotatably installed with a central shaft for supporting, the outer surface of the central shaft is movably installed with a tripod for connecting at both ends, the middle of the triangle of the tripod is provided with a guide groove, the middle of the three sides of the tripod is rotatably installed with a recovery wheel, the inside of one side of the tripod is movably installed with an extrusion wheel, and the outside of one side of the tripod is provided with an adjusting structure, wherein: The adjusting structure comprises a supporting seat, an adjusting screw, a fixing seat, a back nut and a hexagonal, the fixing seat is provided on the outside of the tripod by welding, the inside of the fixing seat is threadedly connected with an adjusting screw for adjusting, one end of the adjusting screw is provided with a supporting seat for supporting, the other end of the adjusting screw is provided with a hexagonal for adjusting, and the end of the adjusting screw provided with the hexagonal is threadedly connected with a back nut for fixing.

2. A screw-type pressure regulating extrusion pump according to claim 1, characterized in that: The side of the extrusion pump shell is fixedly installed with a baffle for blocking, and the middle of one side of the baffle is fixedly installed with a fixed disc.

3. A screw-type pressure regulating extrusion pump according to claim 1, characterized in that: The outer surface of one end of the central shaft is provided with a first bearing for reducing friction, and the outer surface of the other end of the central shaft is provided with a second bearing for reducing friction.

4. A screw-type pressure regulating extrusion pump according to claim 1, characterized in that: The middle of the recovery wheel is provided with a recovery roller shaft for supporting, one end of the recovery roller shaft is arranged on one side of the tripod, the outer surface of the recovery roller shaft is provided with two third bearings for rotating, and the outer surface of the third bearing is arranged in the inside of the recovery wheel for supporting the rotation of the recovery wheel.

5. A screw-type pressure regulating extrusion pump according to claim 1, characterized in that: The middle of the extrusion wheel is provided with a concentric shaft for connecting and supporting, the two ends of the concentric shaft are provided with extrusion shafts for supporting, the outer surface of the concentric shaft is provided with fourth bearings at both ends, the outer surface of the fourth bearing is arranged in the inside of the extrusion wheel for supporting the rotation of the extrusion wheel.

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