Auxiliary mold supporting mechanism

Abstract

The invention discloses an auxiliary formwork supporting mechanism, and belongs to the technical field of coal mine fully-mechanized coal mining equipment. The mechanism aims to solve the problem that a filling body is difficult to support on one side of a goaf in the coal mine gob-side entry retaining technology, the side face of the filling body is supported by the formwork supporting mechanism through the telescopic action of the shear fork mechanism, and an original single column is replaced to support the filling body. The device structurally comprises a fixed seat, a connecting rod, a slide way supporting frame, a supporting jack, a mold supporting assembly, a guide mechanism, a connecting pin shaft and the like. The mechanism can effectively relieve the labor intensity of workers, improve the working efficiency and safety, avoid resource waste caused by the fact that a single column cannot be recycled, is suitable for and not limited to gob-side entry retaining filling body supporting scenes of a fully mechanized coal mining face of an underground coal mine, can stably operate under other environmental conditions, and has extremely high practical value and popularization prospects.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of fully mechanized coal mining equipment, and particularly relates to an auxiliary mold supporting mechanism. BACKGROUND

[0002] With the effective promotion of gob-side entry retaining technology and the wide application of various types of mechanized equipment in coal mines, the coal production rate of coal mines has been significantly improved. In the gob-side entry retaining technology system, the implementation of the filling body beside the entry is a crucial link, and the supporting effect of the filling body directly determines the success or failure of the application of the filling body beside the entry. Before the filling body reaches the preset supporting strength, it must be effectively supported to ensure that the filling body can effectively support the roof according to the preset position and height. In this process, the size of the supporting strength, the adaptability of the supporting mechanism and the safety of the operation are particularly critical, and these factors directly affect the overall effect of the application of the gob-side entry retaining technology.

[0003] At present, the supporting process of the filling body in China generally adopts manual supporting operation mode. This traditional supporting mode has many disadvantages: on the one hand, the supporting period is long, and workers need to carry a large amount of supporting materials for operation, which is extremely labor-intensive; on the other hand, there are multiple safety hazards in the supporting process, especially in the supporting operation link of the goaf side, the safety risk is more prominent. When supporting the goaf side of the filling body, the roof of this area is not only damaged to a certain extent due to the repeated supporting action of the working face support, resulting in a decrease in the stability of the roof, but also workers need to carry multiple single columns and various supporting materials into the goaf to carry out supporting operation, which is a poor and dangerous working environment.

[0004] After the supporting operation is completed, the filling operation of the filling body can be carried out, and after the filling body is filled and solidified, with the advancement of the working face equipment, the filling body reaches the designed supporting strength, and then enters the next cycle of operation. However, in this process, due to the gangue collapse phenomenon in the goaf, combined with the long distance between the working face support and the filling body, the working environment on the goaf side becomes extremely complex, which cannot meet the conditions for recycling single columns, resulting in a large number of single columns being abandoned in the goaf, causing serious resource waste, and also increasing the cost of coal mining.

[0005] In view of the problems of long support period of the filling body on one side of the goaf, large labor intensity of workers, many safety hazards, and resource waste caused by the unrecoverable single column in the prior art, an auxiliary support mechanism is provided, and the core purpose is to solve the support problem of the filling body on one side of the goaf. Through the extension or retraction action of the "scissors" mechanism, the support mechanism is driven to bear against the side surface of the filling body, the normal reinforcement operation demand of the support worker to the filling body is met, the support effect of the original single column to the filling body is replaced, so that the labor intensity of the worker is reduced, the operation efficiency and safety are improved, and the resource waste problem caused by the unrecoverable single column is avoided. SUMMARY

[0006] The purpose of the present application is to provide an auxiliary support mechanism to solve the following technical problems:

[0007] The problems of long support period of the filling body on one side of the goaf, large labor intensity of workers, many safety hazards, and resource waste caused by the unrecoverable single column in the prior art.

[0008] The purpose of the present application can be achieved by the following technical solutions: an auxiliary support mechanism, comprising a fixed seat, a connecting rod, a slide support frame, a support jack, a support assembly, a guide mechanism and a connecting pin shaft;

[0009] The fixed seat itself integrates a slide structure, which is a load-bearing component of the mechanism, the connecting rod and the support jack are linked with the fixed seat and the slide support frame through the guide mechanism and the connecting pin shaft, and the lateral force is transmitted to the fixed seat; the support assembly is fixedly connected with the slide support frame through the connecting pin shaft to form an integrated load-bearing structure, the support jack drives the connecting rod to move the slide support pipe along the slide of the fixed seat, constituting a "scissors" telescopic mechanism, and realizing the extension or retraction of the support pipe assembly.

[0010] As a further scheme of the present application, the fixed seat and the slide support frame are subjected to rust-proof and wear-resistant treatment, and have a connection mode with other load-bearing components, and the installation mode is simple and reliable, facilitating disassembly and maintenance.

[0011] As a further scheme of the present application, the support assembly is composed of support pipes and connecting pieces, the support pipes are connected through the connecting pieces to form an integrated support surface or support point, and the width and height of the support surface are designed according to the size of the filling body.

[0012] As a further scheme of the present application, the connecting rod transmits the telescopic action of the support jack to the slide support frame and the support assembly, and simultaneously transmits the lateral force borne by the support assembly to the fixed seat, realizing the telescoping of the mechanism, and the length of the connecting rod is designed according to the support stroke demand of the mechanism.

[0013] As a further scheme of the present application, the guide mechanism is made of high-strength alloy material, and a dustproof sealing ring is installed at the connecting part of the connecting rod.

[0014] As a further scheme of the present application, the supporting jack is a hydraulic drive type and is equipped with a pressure regulating valve.

[0015] As a further scheme of the present application, the connecting pin shaft is made of high-strength steel and is quenched and tempered, and has a pin cap at one end and an open pin hole at the other end.

[0016] The present application also provides a use method of the auxiliary form supporting mechanism, comprising the following steps:

[0017] Step one, accurately install the fixed seat of the auxiliary form supporting mechanism on the pre-prepared bearing mechanism, and repeatedly check the connection state during the installation process to ensure that the fixed seat is firmly and reliably connected with the bearing mechanism, and there is no looseness or deviation, thereby laying a stable foundation for subsequent support operation.

[0018] Step two, start the hydraulic system, and control the piston rod of the supporting jack to extend outward through the system; the piston rod will push the connecting rod to move synchronously when the piston rod extends, and the connecting rod drives the guide mechanism to stably roll in the slide of the fixed seat during the movement; at the same time, the connecting rod also drives the slide support frame to move towards the filling body, and since the form supporting assembly is connected with the slide support frame through the connecting pin shaft, the form supporting assembly will move towards the filling body together with the slide support frame.

[0019] Step three, continuously observe the relative position of the form supporting assembly and the filling body, and when the form supporting assembly completely contacts the side surface of the filling body, continue to control the piston rod of the supporting jack to extend through the hydraulic system; until the pressure of the hydraulic system reaches the preset support pressure value, at this time, the form supporting assembly will tightly abut against the side surface of the filling body, and a stable support force is formed, which can effectively prevent the displacement and deformation of the filling body during the filling process or due to the expansion of the filling material.

[0020] Step four, wait for the filling body to solidify, and after confirming that the strength of the filling body has reached the designed support strength through professional detection means, the mechanism can be withdrawn, the hydraulic system is started and switched to the reverse control mode, and the piston rod of the supporting jack is retracted inward; the piston rod will pull the connecting rod to move reversely when the piston rod is retracted, and the connecting rod drives the guide mechanism to reversely roll in the slide of the fixed seat; and then the slide support frame and the form supporting assembly connected therewith are pulled to move away from the filling body; continuously control the piston rod to retract until the entire auxiliary form supporting mechanism is completely retracted to the initial position, and thus a complete support cycle is completed.

[0021] The present application has the following beneficial effects:

[0022] (1) Excellent bearing performance and strong support stability: The fixed seat is made of high-strength material and integrates the slide structure, the slide support frame and the connecting rod are made of high-strength material, and the integrated support surface design of the support module assembly can effectively bear the lateral force and expansion force of the filling body, avoid local stress concentration, and ensure the forming quality of the filling body and the support effect of the roof; the support jack is driven by hydraulic pressure, and is equipped with a high-precision control circuit, which can accurately adjust the support force and adapt to different working conditions.

[0023] (2) Strong adaptability and environmental adaptability: The support surface size of the support module assembly can be designed according to the filling body demand, the "scissors" telescopic mechanism can flexibly adjust the support position to meet the support demand of filling bodies of different sizes; the key components (fixed seat, connecting rod, slide support frame, etc.) are subjected to corrosion and rust prevention or quenching and wear-resistant treatment, and the guide mechanism adopts a rolling bearing structure to convert sliding friction into rolling friction, which significantly improves the corrosion resistance and wear resistance of the mechanism in the humid and dusty environment underground, prolonging the service life.

[0024] (3) Convenient installation and maintenance, high operation efficiency: The components are detachably connected through connecting pins, and the connecting parts are provided with wear-resistant bushings, reinforcing structures and anti-falling limit designs (such as split pins and pin shaft caps) to ensure reliable connection and facilitate on-site installation, disassembly and component replacement underground; the support module assembly is made of high-strength lightweight alloy material, which is light in weight and has high integration degree, reducing the labor intensity of underground operation and improving the operation efficiency.

[0025] (4) High structural integration degree and efficient force transmission: The fixed seat integrates the slide and bearing functions, the slide support frame and the support module assembly form an integrated bearing structure, and the "scissors" telescopic mechanism simplifies the power transmission path, the lateral force transmission is direct and efficient, avoiding the force transmission loss caused by the dispersed structure of traditional mechanisms, further improving the bearing efficiency and impact resistance of the mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a connection structure schematic diagram of the auxiliary support module mechanism of the present application;

[0027] Figure 2 is another axonometric connection structure schematic diagram of the fixed seat in the present application Figure 1 ;

[0028] Figure 3 is another axonometric connection structure schematic diagram of the slide support frame in the present application Figure 1 ;

[0029] Figure 4 is a connection part structure schematic diagram of the guide mechanism and the connecting rod in the present application Figure 1 ;

[0030] Figure 5 is a connection part structure schematic diagram of the guide mechanism and the connecting rod in the present applicationFigure 1 The connecting structure schematic diagram of the supporting module assembly.

[0031] In the figure: 1, fixed seat; 2, connecting rod; 3, slide support frame; 4, supporting jack; 5, supporting module assembly; 6, guiding mechanism; 7, connecting pin shaft. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] Embodiment one, please refer to Figures 1-5 As shown in the figure, the present application is a kind of auxiliary supporting mechanism, including fixed seat 1, connecting rod 2, slide support frame 3, supporting jack 4, supporting module assembly 5, guiding mechanism 6 and connecting pin shaft 7, fixed seat 1 itself integrates slide structure, is the load bearing component of mechanism, connecting rod 2 and supporting jack 4 are linked with fixed seat 1, slide support frame 3 through guiding mechanism 6 and connecting pin shaft 7, lateral force is transmitted to fixed seat 1;Supporting module assembly 5 is fixedly connected with slide support frame 3 through connecting pin shaft 7, forms integrated load bearing structure, supporting jack 4 drives connecting rod 2 to drive slide support pipe to move along the slide of fixed seat 1, constitutes "scissors" telescopic mechanism, realizes the extension or retraction of supporting pipe assembly.

[0034] In the embodiment, preferably, fixed seat 1 itself integrates slide structure, the size of slide is matched with guiding mechanism 6, to ensure that guiding mechanism 6 can smoothly slide in slide;Fixed seat 1 is made of high-strength material as a whole, has good load bearing performance and impact resistance, its appearance design meets the installation space requirements of underground coal mine, the surface is treated with anticorrosive and antirust, to adapt to the humid and dusty environment of underground mine, fixed seat 1 is an important load bearing component of the whole auxiliary supporting mechanism, mainly used for transmitting the lateral force from filling body in the filling process and the lateral force generated due to the expansion of filling material, which is borne by slide support frame 3 and supporting module assembly 5, to fixed seat 1 through connecting rod 2 and supporting jack 4, and then to guiding mechanism 6 and connecting pin shaft 7, finally transmitted to other load bearing mechanisms connected thereto by fixed seat 1;At the same time, fixed seat 1 provides stable installation base for the whole mechanism, to ensure that the mechanism does not displace or shake during working process.In addition, fixed seat 1 can be installed on other load bearing mechanisms by bolt connection or welding, and the installation mode is simple and reliable, easy to disassemble and maintain.

[0035] In this embodiment, preferably, the connecting rod 2 is made of solid round steel or square steel, and both ends are provided with connecting holes with a diameter matching the diameter of the connecting pin shaft 7 to ensure that the connecting pin shaft 7 can smoothly pass through the connecting hole to achieve connection; the length of the connecting rod 2 is designed according to the support stroke requirement of the mechanism, and the surface is also subjected to corrosion protection treatment to improve the service life; the connecting rod 2 plays a role in transmitting force and motion, and transmits the telescopic action of the support jack 4 to the slide support frame 3 and the support module assembly 5, and at the same time transmits the lateral force borne by the support module assembly 5 to the fixed base 1; during the action of the "scissors" mechanism, the connecting rod 2 cooperates with other components to realize the telescoping of the mechanism, thereby adjusting the position of the support module assembly 5 to adapt to the support requirements of filling bodies of different sizes.

[0036] In this embodiment, preferably, the slide support frame 3 is made of seamless steel pipe, has high strength and rigidity, one end is connected with the support module assembly 5 through the connecting pin shaft 7, and the other end is provided with a structure cooperating with the guide mechanism 6 to ensure that the guide mechanism 6 can drive the slide support frame 3 to move in the slide of the fixed base 1; the length of the slide support frame 3 is determined according to the overall size of the mechanism and the support range; the surface of the frame body is subjected to rust-proof treatment; the slide support frame 3 is mainly used to support the support module assembly 5 and bear the lateral force of the filling body together with the support module assembly 5; at the same time, under the drive of the support jack 4, the slide support frame 3 can move in the slide of the fixed base 1 to drive the support module assembly 5 to realize telescoping, thereby adjusting the support position and support intensity of the filling body.

[0037] In this embodiment, preferably, the support jack 4 adopts a hydraulic drive mode, the cylinder body and the piston rod are made of high-strength steel material, have good sealing performance and high-pressure resistance, the two ends of the support jack 4 are connected with the fixed base 1 and the connecting rod 2 through the connecting pin shaft 7, and wear-resistant bushings are arranged at the connecting parts to reduce wear and improve service life; the jack is equipped with a hydraulic control circuit to realize accurate control of the telescopic action and meet the requirements of different support intensities; the support jack 4 is the power source of the entire auxiliary support module mechanism, and through the pressure provided by the hydraulic system, the piston rod is telescoped to drive the "scissors" mechanism to act, drive the connecting rod 2, the slide support frame 3 and the support module assembly 5 to move, so that the support module assembly 5 presses against the side surface of the filling body to generate support force; at the same time, the support jack 4 can adjust the size of the support force according to the support requirements of the filling body to ensure that the support effect meets the requirements.

[0038] In this embodiment, preferably, the support module assembly 5 is composed of a plurality of support pipes and connecting pieces. The support pipes are made of high-strength lightweight alloy material, which is light in weight and high in strength, facilitating operation and installation in the well. The support pipes are connected through the connecting pieces to form an integrated support surface. The width and height of the support surface are designed according to the size of the filling body. One end of the support pipe assembly is connected to the slide support frame 3 through a connecting pin 7. A reinforcing structure is provided at the connecting position to improve the connecting strength. The support module assembly 5 is directly in contact with the filling body. Its main function is to jointly bear the lateral force of the filling body with the slide support frame 3. Through large-area contact with the filling body, the support force is uniformly transmitted to the filling body, avoiding excessive local stress that may damage the filling body. At the same time, the support surface of the support module assembly 5 can ensure that the filling body is formed in the preset position and shape during the filling process, ensuring the effective support of the filling body to the roof.

[0039] In this embodiment, preferably, the guide mechanism 6 adopts a rolling bearing structure. The outer ring is made of wear-resistant material, and the inner ring is matched with the shaft. The shaft is connected to the connecting rod 2 or the slide support frame 3 through a bearing seat. The outer diameter of the guide mechanism 6 matches the width of the slide of the fixed base 1, ensuring smooth rolling of the roller in the slide without jamming. The surface of the roller is quenched to improve the surface hardness and wear resistance. The guide mechanism 6 mainly plays a guiding and friction-reducing role. When the support jack 4 driving mechanism operates, the guide mechanism 6 rolls in the slide of the fixed base 1, guiding the movement direction of the connecting rod 2 and the slide support frame 3, ensuring the stable and reliable extension and retraction of the mechanism. At the same time, the sliding friction is converted into rolling friction, greatly reducing the wear between components and improving the service life of the mechanism.

[0040] In this embodiment, preferably, the connecting pin 7 is a high-strength connecting pin with its surface being quenched to improve strength and toughness. One end of the pin is provided with a split pin hole for installing a split pin, and the other end is connected to the guide mechanism 6 and limited by a pin shaft cap to prevent the pin from falling off during work. The length of the pin is determined according to the thickness of the connected components to ensure that there is no obvious looseness between the connected components. The connecting pin 7 is used to realize the detachable connection between components, connecting the fixed base 1, the connecting rod 2, the slide support frame 3, the support jack 4, and the support module assembly 5 into an integrated whole, ensuring that the components can work cooperatively during work, and facilitating the disassembly, maintenance, and replacement of components.

[0041] In summary, the working of the auxiliary support and mold mechanism takes the fixed seat 1 as the core bearing and installation reference. First, the fixed seat 1 made of high-strength material is stably installed on the bearing mechanism in the coal mine through bolt connection or welding. The integrated slide structure of the fixed seat 1 provides a matching sliding track for the guide mechanism 6 and builds a stable and reliable installation foundation for the whole mechanism, effectively avoiding displacement or shaking during operation. Then, the hydraulic drive support jack 4 as the power source of the mechanism is connected with the fixed seat 1 and the connecting rod 2 through the connecting pins 7 at both ends, and the piston rod is precisely controlled to extend and retract through the hydraulic control circuit, converting hydraulic power into mechanical driving force. Under the drive of the support jack 4, the connecting rod 2 drives the slide support frame 3 to move. At this time, the guide mechanism 6 with rolling bearing structure rolls stably along the slide of the fixed seat 1, guiding the slide support frame 3 to translate in the preset direction. Then, through the coordinated action of the "scissors" extension mechanism, the support and mold assembly 5 connected with the slide support frame 3 through the connecting pins 7 is flexibly extended or retracted to adapt to the support position requirements of filling bodies of different sizes. When the support and mold assembly 5 is in large-area contact with the filling body, the lateral force generated during the filling and expansion of the filling body is uniformly transmitted to the slide support frame 3. The lateral force is then transmitted to the fixed seat 1 through the connecting rod 2, the connecting pins 7 and the guide mechanism 6, and finally all the acting forces are stably transmitted to the underground bearing mechanism connected with the fixed seat 1, forming a complete and efficient force transmission and bearing closed loop, realizing stable support of the filling body and ensuring its formation according to the preset shape.

[0042] In the embodiment two, referring to Figures 1-5 The application further discloses a use method of the auxiliary support and mold mechanism, and the method comprises the following steps:

[0043] Step one, accurately install the fixed seat 1 of the auxiliary support and mold mechanism on the prepared bearing mechanism, and repeatedly check the connection state during the installation process to ensure that the fixed seat 1 is firmly and reliably connected with the bearing mechanism without loosening or deviation, thereby laying a stable foundation for subsequent support operation.

[0044] Step two, start the hydraulic system to extend the piston rod of the support jack 4 outward through system control. The piston rod will push the connecting rod 2 to move synchronously, and the connecting rod 2 will drive the guide mechanism 6 to roll stably in the slide of the fixed seat 1 during the movement. At the same time, the connecting rod 2 will also drive the slide support frame 3 to move towards the filling body. Since the support and mold assembly 5 is connected with the slide support frame 3 through the connecting pins 7, the support and mold assembly 5 will move towards the filling body together with the slide support frame 3.

[0045] Step three, continuously observe the relative position of the supporting and molding assembly 5 and the filling body, when the supporting and molding assembly 5 is in full contact with the side of the filling body, continue to control the piston rod of the supporting jack 4 to extend through the hydraulic system; until the pressure of the hydraulic system reaches the preset supporting pressure value, at this time the supporting and molding assembly 5 will tightly press against the side of the filling body, forming a stable supporting force, which can effectively prevent the filling body from displacement or deformation during the filling process or due to the expansion of the filling material.

[0046] Step four, wait for the filling body to solidify, and after confirming that the strength of the filling body has reached the designed supporting strength through professional detection means, the mechanism can be withdrawn, the hydraulic system is started and switched to the reverse control mode, so that the piston rod of the supporting jack 4 is retracted inward; when the piston rod is retracted, it will pull the connecting rod 2 to move in the opposite direction, the connecting rod 2 drives the guide mechanism 6 to roll in the opposite direction in the slide of the fixed seat 1; then pull the slide support frame 3 and the supporting and molding assembly 5 connected thereto to move away from the filling body; continue to control the piston rod to retract until the entire auxiliary supporting and molding mechanism is completely retracted to the initial position, thus completing a complete supporting cycle.

[0047] Example three, please refer to Figures 1-5 When the filling body of the coal mine gob-side entry retaining needs to be supported on one side of the goaf, first install the fixed seat 1 of the auxiliary supporting and molding mechanism on the pre-prepared bearing mechanism to ensure firm and reliable installation; then start the hydraulic system to control the piston rod of the supporting jack 4 to extend, the piston rod drives the connecting rod 2 to move, the connecting rod 2 drives the guide mechanism 6 to roll in the slide of the fixed seat 1, and at the same time the connecting rod 2 drives the slide support frame 3 to move towards the filling body, since the supporting and molding assembly 5 is connected with the slide support frame 3 through the connecting pin shaft 7, the supporting and molding assembly 5 also moves towards the filling body; when the supporting and molding assembly 5 is in contact with the side of the filling body, continue to control the piston rod of the supporting jack 4 to extend until the pressure of the hydraulic system reaches the preset supporting pressure, at this time the supporting and molding assembly 5 tightly presses against the side of the filling body to provide a stable supporting force for the filling body, preventing the filling body from displacement or deformation during the filling process or due to the expansion of the filling material.

[0048] After the filling body solidifies and reaches the designed supporting strength, the auxiliary supporting and molding mechanism needs to be retracted, control the hydraulic system to retract the piston rod of the supporting jack 4, the piston rod pulls the connecting rod 2 to move in the opposite direction, the connecting rod 2 drives the guide mechanism 6 to roll in the opposite direction in the slide of the fixed seat 1, and then pulls the slide support frame 3 and the supporting and molding assembly 5 to move away from the filling body, until the mechanism is retracted to the initial position, completing a supporting cycle.

[0049] The above has been described in detail one embodiment of the present application, but the content is only the preferred embodiment of the present application, cannot be considered for limiting the scope of the present application. Any equivalent changes and improvements made in the scope of the present application, should still belong to the scope of the present application.

Claims

1. An auxiliary formwork bracing mechanism, characterised in that, The auxiliary support mechanism comprises a fixed seat, a connecting rod, a slide support frame, a support jack, a support module assembly, a guide mechanism and a connecting pin shaft. The fixed seat is integrated with a slide structure and serves as a load-bearing component of the mechanism.

2. The assembly of claim 1, wherein: The connecting rod and the support jack are connected with the fixed seat and the slide support frame through the guide mechanism and the connecting pin shaft to transmit lateral force to the fixed seat.

3. The assembly of claim 1, wherein: The support module assembly is fixedly connected with the slide support frame through the connecting pin shaft to form an integrated load-bearing structure.

4. The assembly of claim 1, wherein: The support jack drives the connecting rod to move the slide support pipe along the slide of the fixed seat to form a "scissor" telescopic mechanism and realize the extension or retraction of the support module assembly.

5. The assembly of claim 1, wherein: The fixed seat and the slide support frame are subjected to rust and wear resistance treatment and have a connection mode with other load-bearing components.

6. The assembly of claim 1, wherein: The support module assembly is composed of support pipes and connecting pieces.

7. The assembly of claim 1, wherein: The width and height of the support surface are designed according to the size of the filling body.

8. A method of using a supplemental formwork bracing mechanism, characterized by, The connecting rod transmits the telescopic action of the support jack to the slide support frame and the support module assembly and simultaneously transmits the lateral force borne by the support module assembly to the fixed seat to realize the telescoping of the mechanism. The guide mechanism is made of high-strength alloy material and is provided with a dustproof sealing ring at the connecting position with the connecting rod. The support jack is a hydraulic drive type and is provided with a pressure regulating valve. The connecting pin shaft is made of high-strength steel and is provided with a pin cap at one end and an open pin hole at the other end. The auxiliary support mechanism is used in the following steps: Step one: precisely install the fixed seat of the auxiliary support mechanism on the pre-prepared load-bearing mechanism and repeatedly check the connection state during the installation process to ensure that the fixed seat is firmly and reliably connected with the load-bearing mechanism without loosening or deviation to lay a stable foundation for subsequent support operation. Step two: start the hydraulic system to extend the piston rod of the support jack; the piston rod will push the connecting rod to move synchronously, and the connecting rod will drive the guide mechanism to smoothly roll in the slide of the fixed seat; at the same time, the connecting rod will also drive the slide support frame to move towards the filling body, and since the support module assembly is connected with the slide support frame through the connecting pin shaft, the support module assembly will move towards the filling body together with the slide support frame. Step three: continuously observe the relative position of the support module assembly and the filling body; after the support module assembly completely contacts the side surface of the filling body, continue to extend the piston rod of the support jack through the hydraulic system; until the pressure of the hydraulic system reaches the preset support pressure value, at which time the support module assembly will tightly abut against the side surface of the filling body to form a stable support force, which can effectively prevent the displacement and deformation of the filling body during the filling process or due to the expansion of the filling body. Step four, wait for the filling body to solidify, through professional testing means to confirm that its strength has reached the design supporting strength, then the mechanism can be withdrawn, start the hydraulic system and switch to reverse control mode, make the piston rod of the support jack retract inward; the piston rod will pull the connecting rod to move in the opposite direction when it retracts, the connecting rod drives the guide mechanism to roll in the opposite direction in the slide of the fixed seat; then pull the slide support frame and the support mold assembly connected to it to move away from the filling body; continue to control the piston rod to retract until the entire auxiliary support mold mechanism is completely retracted to the initial position, thus completing a complete support cycle.

Images