Annular briquette coal manufacturing device capable of simulating drilling state

Abstract

The utility model discloses a drilling state simulation annular briquette manufacturing device which comprises a base, a supporting arm, a converter, a pressing die assembly, a rotary excavating assembly, a cushion block, a briquette die and a control computer, one end of the supporting arm is fixedly installed on the base, and the converter is fixedly installed at the other end of the supporting arm. The pressing die assembly and the rotary excavating assembly are symmetrically and fixedly installed on the converter, the cushion block is assembled on the base, the briquette coal mold is placed on the cushion block, the pressing die assembly or the rotary excavating assembly is located over the center of the briquette coal mold, the converter is connected with the control computer through a power line, and the rotary excavating assembly is electrically connected with the converter. According to the utility model, the converter, the die pressing assembly and the rotary excavating assembly are arranged, coal sample pressing and coal briquette drilling are integrated on one device platform, the rotation of the converter is controlled by a computer to realize the switching of the two devices, and the coal briquette manufacturing can be accurately controlled according to the set pressure and rotating speed; therefore, the manufacturing efficiency and precision of the annular briquette coal are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine safety, and particularly provides a device for manufacturing annular briquettes in a simulated drilling state. Background Art

[0002] The prerequisite for the smooth implementation of coal mine gas drainage control projects is to determine key parameters such as coal seam permeability laws, coal and rock properties, and gas emission laws. Laboratory similarity simulation tests are one of the effective methods to obtain key parameters. Making briquettes similar to coal mine drilling conditions is the basis of similarity simulation tests. Currently, most of the applied briquettes are made by the die pressing method. The shape of the briquettes is mostly cylindrical, and after forming, they need to be transferred for subsequent processing work, resulting in low production efficiency and insufficient processing accuracy. In addition, the cylindrical briquettes have a solid structure, and there is no experimental space in the middle of the briquettes, so they do not have the experimental conditions to simulate the hollow structure of coal seam drill holes. Content of the Utility Model

[0003] To solve the above problems, the utility model provides a device for manufacturing annular briquettes in a simulated drilling state.

[0004] To achieve the above object, the technical solution adopted by the utility model is: a device for manufacturing annular briquettes in a simulated drilling state, including a base, a support arm, a converter, a die pressing assembly, a rotary drilling assembly, a cushion block, a briquette mold, and a control computer. One end of the support arm is fixedly installed on the base, the converter is fixedly installed at the other end of the support arm, and the die pressing assembly and the rotary drilling assembly are symmetrically and fixedly installed on the converter. The cushion block is assembled on the base, and the briquette mold is placed on the cushion block. The die pressing assembly or the rotary drilling assembly is directly above the center of the briquette mold. The converter is connected to the control computer through a power cord, and the rotary drilling assembly is electrically connected to the converter.

[0005] Further, the die pressing assembly includes a die pressing hydraulic cylinder, a screw adjusting column, and a pressing block. The die pressing hydraulic cylinder is assembled on one side of the lower surface of the converter. The output end of the die pressing hydraulic cylinder is fixedly installed with a threaded cylinder, and the screw adjusting column is screwed into the threaded cylinder. The pressing block is fixedly installed at the lower end of the screw adjusting column.

[0006] Further, the rotary drilling assembly includes a rotary drilling hydraulic cylinder, a motor, a screw drill bit, and an elastic power cord. The rotary drilling hydraulic cylinder is assembled on the other side of the lower surface of the converter. The output end of the rotary drilling hydraulic cylinder is fixedly installed with a motor. The screw drill bit is fixedly installed at the output end of the motor. The motor is connected to the power cord of the converter through the elastic power cord.

[0007] Furthermore, the cushion block includes a cushion block body and a hydraulic cylinder for the cushion block central hole. A cushion block groove is formed on the upper surface of the cushion block body. A cushion block central hole is formed on the lower surface of the inner cavity of the cushion block groove. The hydraulic cylinder for the cushion block central hole is assembled on the base, and the cushion block body is sleeved on the hydraulic cylinder for the cushion block central hole. A cushion block central hole baffle is fixedly installed at the output end of the hydraulic cylinder for the cushion block central hole. A cushion block retaining ring is assembled on the lower surface of the inner cavity of the cushion block groove. Threads are formed on the inner surface of the cushion block groove, and a thread ring for restricting the position of the cushion block retaining ring is screwed on the inner surface of the cushion block groove.

[0008] Furthermore, the diameter of the cushion block central hole baffle is smaller than the diameter of the cushion block central hole and larger than the inner diameter of the cushion block retaining ring. The inner diameter of the cushion block retaining ring is larger than the inner diameter of the ring-shaped briquette finished product.

[0009] Furthermore, the inner ring of the lower surface of the cushion block retaining ring is a conical surface, and a concave surface matching the cushion block retaining ring is formed on the outer ring of the upper surface of the cushion block central hole baffle.

[0010] Furthermore, a limiting ring is sleeved on the outer peripheral surface of the hydraulic cylinder for the cushion block central hole, and the outer diameter of the limiting ring is the same as the diameter of the cushion block central hole.

[0011] Furthermore, the briquette mold includes a semi-circular module, an annular hoop and a tightening screw. The two semi-circular modules form a cylindrical mold. The annular hoop is sleeved on the outer surface of the cylindrical mold, and a tightening screw is installed on the annular hoop. A butt joint slot is formed at the end of one semi-circular module, and a butt joint protrusion matching the butt joint slot is integrally formed at the end of the other semi-circular module.

[0012] The beneficial effects of using the present utility model are as follows:

[0013] 1. The present utility model is provided with a converter, a pressing die assembly and a rotary drilling assembly, integrating the pressing of coal samples and the drilling of briquettes onto one device platform. The rotation of the converter is controlled by a computer to realize the switching between the two devices, and the production of briquettes can be accurately controlled according to the set pressure and rotation speed, thus greatly improving the production efficiency and accuracy of ring-shaped briquettes.

[0014] 2. The present utility model also designs the cushion block. Through the cooperation of the cushion block retaining ring and the cushion block central hole baffle, it can effectively support the forming process of the briquette, complete the pressing die forming work, and the cushion block central hole baffle can move downward to form a drilling space, enabling the subsequent drilling work to proceed smoothly.

[0015] 3. The mold of the ring-shaped briquette in the present utility model is composed of two semi-circular modules, reducing the damage to the briquette structure during demolding and ensuring the integrity of the briquette. Description of the Drawings

[0016] Figure 1This is the structural diagram of the annular briquette manufacturing device for simulating the drilling state of the present utility model.

[0017] Figure 2 This is the structural diagram of the converter, die pressing assembly and rotary drilling assembly of the present utility model.

[0018] Figure 3 This is the front view cross-sectional view of the spacer block of the present utility model.

[0019] Figure 4 This is the front view of the briquette mold of the present utility model.

[0020] Figure 5 This is the top view cross-sectional view of the briquette mold of the present utility model.

[0021] Figure 6 This is the schematic diagram of the finished annular briquette of the present utility model.

[0022] Reference numerals include: 1, base; 2, support arm; 3, converter; 4, die pressing assembly, 401, die pressing hydraulic cylinder, 402, screw adjusting column, 403, pressing block; 5, rotary drilling assembly, 501, rotary drilling hydraulic cylinder, 502, motor, 503, screw drill bit, 504, elastic power cord; 6, spacer block, 601, spacer block groove, 602, spacer block central hole hydraulic cylinder, 603, spacer block central hole baffle, 604, spacer block retaining ring, 605, threaded ring, 606, limiting ring; 7, briquette mold, 701, semi-circular module, 702, annular hoop, 703, tightening screw, 704, butt joint seam groove; 8, control computer; 9, finished annular briquette. Specific embodiments

[0023] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Embodiment 1

[0025] Refer to Figures 1 to 5, The annular briquette making device for simulating the drilling state includes a base 1, a support arm 2, a converter 3, a pressing die assembly 4, a rotary drilling assembly 5, a cushion block 6, a briquette mold 7 and a control computer 8. One end of the support arm 2 is fixedly installed on the base 1, the converter 3 is fixedly installed at the other end of the support arm 2, and the pressing die assembly 4 and the rotary drilling assembly 5 are symmetrically and fixedly installed on the converter 3. The cushion block 6 is assembled on the base 1, and the briquette mold 7 is placed on the cushion block 6. The pressing die assembly 4 or the rotary drilling assembly 5 is directly above the center of the briquette mold 7. The converter 3 is connected to the control computer 8 through a power cord, and the rotary drilling assembly 5 is electrically connected to the converter 3.

[0026] The support arm 2 is used to support the converter 3, the pressing die assembly 4 and the rotary drilling assembly 5.

[0027] The converter 3 forms a certain angle with the horizontal direction and can rotate 360°. In this embodiment, the converter 3 forms a 30° angle with the horizontal direction, and the pressing die assembly 4 and the rotary drilling assembly 5 form a 30° angle with the axis of the converter 3. Therefore, when the converter 3 rotates, it can ensure that the pressing die assembly 4 or the rotary drilling assembly 5 turns to the vertical state.

[0028] The pressing die assembly 4 cooperates with the cushion block 6 and the briquette mold 7 to complete the die pressing forming work of the briquette.

[0029] The rotary drilling assembly 5 cooperates with the cushion block 6 and the briquette mold 7 to complete the drilling work of the briquette, and annular briquettes can be obtained after processing.

[0030] The cushion block 6 is used to support the briquette mold 7 and the coal sample.

[0031] The control computer 8 is used to control the operation of the converter 3, the pressing die hydraulic cylinder 401, the rotary drilling hydraulic cylinder 501, the motor 502 and the cushion block central hole hydraulic cylinder 602.

[0032] Specifically, as Figure 2 shown, the pressing die assembly 4 includes a pressing die hydraulic cylinder 401, a screw adjustment column 402 and a pressing block 403. The pressing die hydraulic cylinder 401 is assembled on one side of the lower surface of the converter 3. A threaded cylinder is fixedly installed at the output end of the pressing die hydraulic cylinder 401, and the screw adjustment column 402 is screwed into the threaded cylinder. The pressing block 403 is fixedly installed at the lower end of the screw adjustment column 402.

[0033] The diameter of the pressing block 403 is the same as the inner diameter of the briquette mold 7.

[0034] The pressing die hydraulic cylinder 401 is used to drive the screw adjustment column 402 and the pressing block 403 to move, and the pressing block 403 presses the coal sample in the briquette mold 7 to obtain a cylindrical briquette.

[0035] Specifically, as Figure 2As shown in the figure, the rotary drilling assembly 5 includes a rotary drilling hydraulic cylinder 501, a motor 502, a screw drill bit 503, and an elastic power cord 504. The rotary drilling hydraulic cylinder 501 is assembled on the other side of the lower surface of the converter 3. The output end of the rotary drilling hydraulic cylinder 501 is fixedly installed with the motor 502. The screw drill bit 503 is fixedly installed at the output end of the motor 502. The motor 502 is connected to the power cord of the converter 3 through the elastic power cord 504.

[0036] The rotary drilling hydraulic cylinder 501 is used to drive the motor 502 and the screw drill bit 503 to move. When the motor 502 operates, it drives the screw drill bit 503, and then drills holes in the cylindrical briquette to obtain an annular briquette.

[0037] Specifically, as Figure 3 shown in the figure, the spacer block 6 includes a spacer block body and a spacer block central hole hydraulic cylinder 602. The upper surface of the spacer block body is provided with a spacer block groove 601. The lower surface of the inner cavity of the spacer block groove 601 is provided with a spacer block central hole. The spacer block central hole hydraulic cylinder 602 is assembled on the base 1, and the spacer block body is sleeved on the spacer block central hole hydraulic cylinder 602. The output end of the spacer block central hole hydraulic cylinder 602 is fixedly installed with a spacer block central hole baffle 603. The lower surface of the inner cavity of the spacer block groove 601 is assembled with a spacer block retaining ring 604. The inner surface of the spacer block groove 601 is provided with threads, and a thread ring 605 for restricting the position of the spacer block retaining ring 604 is screwed on the inner surface of the spacer block groove 601.

[0038] The spacer block central hole hydraulic cylinder 602 is used to control the lifting of the spacer block central hole baffle 603. When the spacer block central hole baffle 603 rises to fit with the spacer block retaining ring 604, the upper surfaces of the spacer block central hole baffle 603 and the spacer block retaining ring 604 form a plane, which is used in cooperation with the briquette mold 7 to limit the outer shape of the briquette, so that a cylindrical briquette is formed after pressing. After the spacer block central hole baffle 603 descends, a drilling space will be vacated at the spacer block central hole, so that during the drilling operation of the rotary drilling assembly 5, the screw drill bit 503 will not contact the spacer block central hole baffle 603, ensuring the smooth progress of the drilling operation and not causing damage to the screw drill bit 503 and the spacer block central hole baffle 603.

[0039] The thread ring 605 is used to restrict the position of the spacer block retaining ring 604, and the inner diameter of the thread ring 605 is the same as the outer diameter of the semi-circular module 701 of the briquette mold 7.

[0040] Specifically, as Figure 3 shown in the figure, the diameter of the spacer block central hole baffle 603 is smaller than the diameter of the spacer block central hole and larger than the inner diameter of the spacer block retaining ring 604. The inner diameter of the spacer block retaining ring 604 is larger than the inner diameter of the annular briquette finished product 9, so that the spacer block retaining ring 604 will not affect the drilling operation of the screw drill bit 503.

[0041] The design of the spacer retaining ring 604 enables the diameter of the spacer central hole baffle 603 to be smaller than that of the spacer central hole, so that the spacer central hole baffle 603 will not contact the inner surface of the spacer central hole during movement, avoiding wear and resulting in gaps, and thus ensuring the smooth progress of the die pressing work and the formation of cylindrical briquettes.

[0042] Specifically, as Figure 3 shown, the inner ring of the lower surface of the spacer retaining ring 604 is a conical surface, and a concave surface matching the spacer retaining ring 604 is provided on the outer ring of the upper surface of the spacer central hole baffle 603.

[0043] Through the design of the conical surface, the contact between the spacer retaining ring 604 and the spacer central hole baffle 603 is made closer, and the lifting movement will not cause wear to the conical surface, thus ensuring that the upper surfaces of the spacer retaining ring 604 and the spacer central hole baffle 603 are flat and there are no gaps between them, ensuring the smooth and effective formation of cylindrical briquettes.

[0044] Specifically, as Figure 3 shown, a limit ring 606 is sleeved on the outer peripheral surface of the spacer central hole hydraulic cylinder 602, and the outer diameter of the limit ring 606 is the same as the diameter of the spacer central hole.

[0045] Through the limiting effect of the limit ring 606, the coaxiality of the spacer body and the spacer central hole hydraulic cylinder 602 is ensured, and thus the smooth and accurate progress of the die pressing and drilling work is ensured.

[0046] Specifically, as Figure 4 and Figure 5 shown, the briquette mold 7 includes a semi-circular module 701, an annular hoop 702 and a tightening screw 703. Two semi-circular modules 701 form a cylindrical mold. The annular hoop 702 is sleeved on the outer surface of the cylindrical mold, and a tightening screw 703 is installed on the annular hoop 702. A docking seam groove 704 is provided at the end of one semi-circular module 701, and a docking protrusion matching the docking seam groove 704 is integrally formed at the end of the other semi-circular module 701.

[0047] After the two semi-circular modules 701 are assembled, they are fixed by the annular hoop 702, and the annular hoop 702 is tightened by the tightening screw 703, thus obtaining a standard mold.

[0048] The setting of the docking seam groove 704 and the docking protrusion on the semi-circular module 701 can make the two semi-circular modules 701 fit together more accurately, obtaining a standard and precise mold.

[0049] Embodiment 2

[0050] The usage method of this simulated drilling state ring-shaped briquette manufacturing device specifically includes the following steps:

[0051] Step 1: Fix the base 1 on the ground, weld the support arm 2 to the base 1, connect the converter 3 to the support arm through a bearing, symmetrically install the pressing die assembly 4 and the rotary drilling assembly 5 below the converter 3, and install the cushion block central hole hydraulic cylinder 602 on the base 1 at a position coaxial with the vertically placed pressing die assembly 4;

[0052] Step 2: Place the cushion block 6 on the base and sleeve it outside the cushion block central hole hydraulic cylinder 602. Connect the two semi-circular modules 701 and place them in the cushion block groove 601. Put the two annular hoops 702 on the upper and middle parts of the semi-circular modules 701 and tighten the hoop screws 703;

[0053] Step 3: Place the coal sample into the briquette mold 7. Control the converter 3 to rotate through the control computer 8, align the pressing die assembly 4 with the briquette mold 7, adjust the position of the screw adjustment column 402 so that the pressing block 403 contacts the coal sample, start the pressing die hydraulic cylinder 401, and compact the coal sample according to the pressure data set by the control computer 8 to obtain a cylindrical briquette. After the compaction is completed, control the pressing die hydraulic cylinder 401 to move the pressing block 403 upward so that the pressing block 403 disengages from the briquette mold 7 and returns to the initial position;

[0054] Before putting the coal sample, the position of the pressing block 403 can be adjusted by operating the screw adjustment column 402 to make the pressing block 403 close to the upper end of the briquette mold 7 after being aligned with the briquette mold 7, so that the screw adjustment column 402 does not need to be adjusted again during the subsequent pressing die operation;

[0055] Step 4: Control the cushion block central hole hydraulic cylinder 602 through the control computer 8 to lower the cushion block central hole baffle 603 so that a drilling space is formed on the upper side inside the cushion block central hole. Control the converter 3 to rotate through the control computer 8, align the rotary drilling assembly 5 with the briquette mold 7, start the motor 502 to drive the spiral drill bit 503 to rotate, and at the same time start the rotary drilling hydraulic cylinder 501 to drive the spiral drill bit 503 to drill. Drill at the drill speed set in the control computer 8 to form a hole in the center of the cylindrical briquette. After the drilling is completed, return the rotary drilling assembly 5 to the initial position;

[0056] Step 5: Take out the briquette mold 7 from the cushion block groove 601, loosen the hoop screws 703, remove the annular hoops 702, separate the two semi-circular modules 701, and take out the ring-shaped briquette finished product 9, and the briquette production is completed;

[0057] The ring-shaped briquette finished product is as Figure 6 shown.

[0058] The above content is only the preferred embodiment of the present utility model. For those of ordinary skill in the art, according to the idea of the present utility model, many changes can be made in the specific implementation manner and application scope. As long as these changes do not depart from the concept of the present utility model, they all belong to the protection scope of the present utility model.

Claims

1. A device for making annular coal briquette simulating drilling state, characterized in that: It includes a base, a support arm, a converter, a die assembly, a rotary drilling assembly, a cushion block, a briquette mold and a control computer, one end of the support arm is fixedly mounted on the base, the converter is fixedly mounted on the other end of the support arm, and the die assembly and the rotary drilling assembly are symmetrically fixedly mounted on the converter, the cushion block is assembled on the base, and the briquette mold is placed on the cushion block, the die assembly or the rotary drilling assembly is located directly above the center of the briquette mold, the converter is connected to the control computer via a power cord, and the rotary drilling assembly is electrically connected to the converter.

2. The device for making annular coal briquette simulating drilling state according to claim 1, characterized in that: The die assembly includes a die hydraulic cylinder, a spiral adjustment column and a pressure block. The die hydraulic cylinder is assembled on one side of the lower surface of the converter. A threaded barrel is fixedly installed on the output end of the die hydraulic cylinder, and the spiral adjustment column is screwed into the threaded barrel. The pressure block is fixedly installed on the lower end of the spiral adjustment column.

3. The device for making annular coal briquette simulating drilling state according to claim 1, characterized in that: The rotary drilling assembly includes a rotary drilling hydraulic cylinder, a motor, an auger bit and an elastic power cord. The rotary drilling hydraulic cylinder is assembled on the other side of the lower surface of the converter. The motor is fixedly installed on the output end of the rotary drilling hydraulic cylinder. The auger bit is fixedly installed on the output end of the motor. The motor is connected to the power cord of the converter through the elastic power cord.

4. The device for making annular coal briquette simulating drilling state according to claim 1, characterized in that: The pad includes a pad body and a pad center hole hydraulic cylinder, the upper surface of the pad body is provided with a pad groove, the lower surface of the inner cavity of the pad groove is provided with a pad center hole, the pad center hole hydraulic cylinder is assembled on the base, and the pad body is sleeved on the pad center hole hydraulic cylinder, a pad center hole baffle is fixedly installed on the output end of the pad center hole hydraulic cylinder, a pad baffle ring is assembled on the lower surface of the inner cavity of the pad groove, a thread is formed on the inner surface of the pad groove, and a threaded ring for limiting the position of the pad baffle ring is screwed on the inner surface of the pad groove.

5. The device for making annular coal briquette simulating drilling state according to claim 4, characterized in that: The diameter of the cushion block center hole baffle is smaller than the diameter of the cushion block center hole and larger than the inner diameter of the cushion block baffle ring, and the inner diameter of the cushion block baffle ring is larger than the inner diameter of the annular coal briquette product.

6. The device for making annular coal briquette simulating drilling state according to claim 5, characterized in that: The inner circle of the lower surface of the cushion block retaining ring is a conical surface, and the outer circle of the upper surface of the cushion block center hole baffle is provided with a concave surface matching the cushion block retaining ring.

7. The device for making annular coal briquette simulating drilling state according to claim 4, characterized in that: The outer peripheral surface of the hydraulic cylinder of the center hole of the cushion block is sleeved with a limiting ring, and the outer diameter of the limiting ring is the same as the diameter of the center hole of the cushion block.

8. The device for making annular coal briquette simulating drilling state according to claim 1, characterized in that: The coal mold includes a semicircular module, an annular hoop and a tightening screw. Two of the semicircular modules form a cylindrical mold. The annular hoop is sleeved on the outer surface of the cylindrical mold, and a tightening screw is installed on the annular hoop. A docking groove is opened at the end of one of the semicircular modules, and a docking protrusion matching the docking groove is integrally formed at the end of the other semicircular module.

Images