Raw coal impurity removal mechanism with self-cleaning function

Abstract

The utility model belongs to the technical field of coal mine impurity removal equipment, and particularly discloses a raw coal impurity removal mechanism with a self-cleaning function. The raw coal impurity removing mechanism comprises a base, a rotating roller claw type screening unit and a hook cleaning unit. Large sundries are intercepted on the swing rod and wait for being subsequently hooked by the rotating roller claw type screening unit, and rotary throwing and impurity removing operation is carried out. The rotary roller claw type screening unit is arranged, a gear motor and a cam divider are used for providing power, claws are intermittently driven to rotate, and large sundries intercepted on a screening plate can be hooked up and rotationally thrown into a recycling box for subsequent treatment; according to the utility model, the hook cleaning unit is additionally arranged, so that soft sundries such as ropes on the hook claws can be cleaned, and the smooth operation of rotary throwing and impurity removal operation is ensured; by additionally arranging the single-rotation scraper assembly and the linkage scraper assembly, soft sundries carried on the hook claw can be cleaned, and the probability that the equipment is blocked is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to coal mine impurity removal equipment technical field, specifically related to a raw coal impurity removal mechanism with self -cleaning function. BACKGROUND

[0002] In the coal mine production process, raw coal impurity removal equipment can be used to remove the sundries (such as large stone etc.) in coal, so that the coal quality can be ensured and the efficiency of downstream process is improved. However, in practical application, raw coal impurity removal equipment often faces the problem of blockage, which not only affects the operation efficiency of the equipment, but also may cause equipment damage and production stagnation.

[0003] Therefore, it is necessary to design a raw coal impurity removal mechanism for preventing blockage for raw coal impurity removal equipment, which can timely remove sundries such as large stones mixed in coal, so as to avoid the problem of blockage of the equipment and ensure the normal operation of raw coal impurity removal equipment. However, it is found in actual verification of the equipment that although the above-mentioned raw coal impurity removal mechanism for preventing blockage can remove large sundries mixed in raw coal, the effect of preventing blockage of the raw coal impurity removal mechanism gradually decreases with the increase of use time.

[0004] The reason is mainly that in the impurity removal process of the raw coal impurity removal mechanism, soft sundries such as ropes are entangled with the hook claws and other structures of the raw coal impurity removal mechanism, and as the accumulation of sundries increases, the impurity removal performance of the raw coal impurity removal mechanism decreases, which further leads to the decrease of impurity removal effect and the increase of the risk of blockage of the equipment, thereby affecting the normal production operation of the coal mine.

[0005] Therefore, the utility model provides a raw coal impurity removal mechanism with self-cleaning function. CONTENT OF THE UTILITY MODEL

[0006] The utility model aims at providing a raw coal impurity removal mechanism with self-cleaning function, which can remove sundries in coal mine and timely clean soft sundries such as ropes entangled with the mechanism itself during the raw coal impurity removal process, so as to ensure the impurity removal effect of the raw coal impurity removal mechanism.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0008] A raw coal impurity removal mechanism with self-cleaning function, comprising a base, a grate type screening unit, a rotary roller hook claw type screening unit and a hook cleaning unit;

[0009] The middle position of the base is provided with a first opening, wherein the grate type screening unit and the rotary roller hook claw type screening unit are both arranged at the first opening, the rotary roller hook claw type screening unit is located at the middle position of the base, and the grate type screening unit is located at the front side of the rotary roller hook claw type screening unit;

[0010] The hook claw type screening unit comprises a roller shaft and hook claws;

[0011] Both ends of the roller shaft are connected with a first bearing seat through a bearing respectively, and each first bearing seat is arranged on the base and located at different sides of the first opening;

[0012] A plurality of groups of hook claws are arranged on the roller shaft;

[0013] A mounting frame is arranged on the top of the base, a second opening is arranged on the top of the mounting frame, and a hook cleaning unit is arranged in the second opening, wherein the hook cleaning unit is located above the rear side of the hook claw type screening unit;

[0014] The hook cleaning unit comprises a single-rotation scraper assembly;

[0015] The single-rotation scraper assembly comprises a rotating shaft and a first cleaning scraper, the rotating shaft is arranged horizontally, both ends of the rotating shaft are connected with a second bearing seat through a bearing, and the second bearing seat is arranged on the mounting frame;

[0016] The first cleaning scraper is arranged on the rotating shaft in the axial direction of the rotating shaft.

[0017] Preferably, the hook cleaning unit further comprises a linkage scraper assembly;

[0018] The linkage scraper assembly comprises a cylinder, a slide rail, a slide block, a square tube and a second cleaning scraper;

[0019] The cylinder and the slide rail are arranged on both sides of the top of the mounting frame, the slide block is arranged on the slide rail, the piston end of the cylinder is connected with the slide block, and the top of the slide block is fixedly connected with a third bearing seat;

[0020] The square tube is arranged horizontally, a transmission shaft is arranged at each end of the square tube, and each transmission shaft is connected with a third bearing seat through a bearing;

[0021] A plurality of second cleaning scrapers are fixedly connected on the square tube in the length direction of the square tube.

[0022] Preferably, the linkage scraper assembly further comprises an oil cylinder for driving the square tube to rotate;

[0023] The oil cylinder is arranged on the mounting frame, and the output shaft of the oil cylinder is connected with the square tube.

[0024] Preferably, the linkage scraper assembly further comprises an oil cylinder for driving the square tube to rotate;

[0025] The oil cylinder is arranged on the mounting frame, and the output shaft of the oil cylinder is connected with the square tube.

[0026] Preferably, the knife heads of the first cleaning scraper and the second cleaning scraper are all triangular scrapers.

[0027] Preferably, the rotating roller hook claw type screening unit is provided with an intermittent transmission unit;

[0028] The intermittent transmission unit comprises a speed reducer motor and a cam divider;

[0029] The speed reducer motor is arranged on the base, and the speed reducer motor is connected with the cam divider, and the cam divider is connected with the roller shaft.

[0030] Preferably, every three hook claws form a group, wherein the three hook claws in the same group are in the same plane, and the interval angle between the hook claws in the same group is 120°;

[0031] The single hook claws of each group of hook claws correspond in position, and the whole forms three rows of groups of hook claws arranged along the axial direction of the roller shaft.

[0032] Preferably, the number of the first cleaning scraper is the same as the number of the groups of hook claws and corresponds in position.

[0033] Preferably, a spacing sleeve is arranged between the two adjacent groups of hook claws.

[0034] Preferably, the first cleaning scraper is installed on the rotating shaft through a shaft sleeve.

[0035] Preferably, the bottom of the base is provided with a recycling box.

[0036] The utility model has the advantages of:

[0037] The utility model discloses a raw coal impurity removing mechanism with self-cleaning function, which temporarily intercepts large stone and other impurities with large volume on the swing rod, waits for subsequent hooking and rotating and throwing by the rotating roller hook claw type screening unit and performs impurity removing operation, adds the rotating roller hook claw type screening unit, uses the speed reducer motor and the cam divider to provide power intermittently to drive the hook claw to rotate, can throw the large impurities intercepted on the swing rod into the recycling box arranged at the other end of the base, and waits for subsequent processing, on the basis, the utility model adds the hook cleaning unit, can clean the hook claw of the rotating roller hook claw type screening unit in time, thereby guaranteeing the smooth progress of the impurity removing operation of the rotating roller hook claw type screening unit and indirectly guaranteeing the normal production efficiency of coal.

[0038] The raw coal impurity removing mechanism adds the single rotating scraper assembly and the linkage scraper assembly on the mounting frame, can clean the sticky impurities or soft impurities such as ropes carried on the hook claw, reduces the probability of the jamming problem of the mechanism in the impurity removing process, and guarantees the impurity removing effect of the raw coal impurity removing mechanism. DRAWINGS

[0039] Figure 1 The utility model discloses a raw coal impurity removing mechanism Figure 1 ;

[0040] Figure 2 The three-dimensional Figure 2 ;

[0041] Figure 3 The three-dimensional Figure 3 ;

[0042] Figure 4 The assembly diagram of the rotary roller hook claw type screening unit and the hook cleaning unit of the utility model;

[0043] Figure 5 The structure diagram of the rotary roller hook claw type screening unit of the utility model Figure 1 ;

[0044] Figure 6 The structure diagram of the rotary roller hook claw type screening unit of the utility model Figure 2 ;

[0045] Figure 7 The structure diagram of the hook cleaning unit of the utility model Figure 1 ;

[0046] Figure 8 The structure diagram of the hook cleaning unit of the utility model Figure 2 ;

[0047] Figure 9 The structure diagram of the blade head of the second cleaning scraper of the utility model;

[0048] Wherein, 1 - base, 2 - mounting frame, 3 - grate type screening unit;

[0049] Intermittent transmission unit: 41 - speed reducer motor, 42 - cam divider;

[0050] 4 - rotary roller hook claw type screening unit: 43 - roller shaft, 44 - first bearing seat, 45 - hook claw, 46 - spacer sleeve;

[0051] 5 - hook cleaning unit:

[0052] Single rotary scraper assembly: 511 - rotating shaft, 512 - second bearing seat, 513 - first cleaning scraper;

[0053] Linkage scraper assembly: 521 - slide rail, 522 - sliding block, 523 - third bearing seat, 524 - square tube, 525 - second cleaning scraper. DETAILED DESCRIPTION

[0054] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments.

[0055] In the utility model, unless another explicit provision and limitation, the terms "connect", "fix" and the like should be broad sense understanding, for example, "fix" can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through the intermediate medium, can be two elements inside the communication or two element's mutual action relation, unless another explicit limitation, for the ordinary skill in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0056] As shown in the combination Figures 1 to 9 The utility model provides a raw coal impurity removal mechanism with self-cleaning function, and the raw coal impurity removal mechanism mainly includes rotary roller hook claw type screening unit 4 and hook cleaning unit 5, wherein the rotary roller hook claw type screening unit 4 can complete the rotary throwing impurity removal operation of large impurities, and the hook cleaning unit 5 can complete the cleaning operation of the hook claw 45 in the rotary roller hook claw type screening unit 4, to ensure the normal operation of the mechanism and the normal production efficiency of the coal mine.

[0057] As shown in the combination Figure 1 The middle position of the base 1 is provided with a first opening, wherein the grate type screening unit 3 and the rotary roller hook claw type screening unit 4 are both arranged at the first opening, the rotary roller hook claw type screening unit 4 is located at the middle position of the base 1, and the grate type screening unit 3 is located at the front side of the rotary roller hook claw type screening unit 4.

[0058] It should be noted that the grate type screening unit 3 mainly includes oil cylinder, square tube, driving block and swing rod and the like structural components. The square tube is horizontally arranged, the driving block is correspondingly connected to one end of the square tube, the oil cylinder is arranged on the base, and the output shafts of the oil cylinder are correspondingly connected to one driving block respectively, the driving block is driven to rotate by the power provided by the oil cylinder, and the driving block can drive the square tube to rotate. Among them, a plurality of swing rods arranged in parallel are further arranged on the square tube, the plurality of swing rods are arranged at equal intervals, the small coal blocks can fall from the gap between adjacent swing rods, and the large impurities are temporarily intercepted on the swing rods, waiting for the subsequent rotary throwing impurity removal operation of the rotary roller hook claw type screening unit 4.

[0059] As shown in the combination Figures 1 to 3 The rotary roller hook claw type screening unit 4 is arranged at the opening of the base 1, can hook up the large impurities such as stone intercepted on the screen plate 3 and perform rotary throwing impurity removal operation. The rotary roller hook claw type screening unit 4 mainly includes speed reducer 41, cam divider 42, roller shaft 43, first bearing seat 44, hook claw 45 and spacer sleeve 46 and the like structural components.

[0060] Further, the rotary roller hook type screening unit 4 is also provided with an intermittent transmission unit for driving the rotary roller hook type screening unit 4 to rotate, and the intermittent transmission unit comprises a speed reducer motor 41 and a cam divider 42.

[0061] As shown in Figure 5 and Figure 6 As shown in the drawings, the speed reducer motor 41 is arranged on the base 1, the speed reducer motor 41 is connected with the cam divider 42, the cam divider 42 is connected with the roller shaft 43, and the two ends of the roller shaft 43 are both connected with the first bearing seat 44 through bearings. Each first bearing seat 44 is arranged on the base 1 and located on different sides of the first opening. A plurality of groups of hooks 45 are arranged on the roller shaft 43, wherein three hooks 45 form a group, the three hooks 45 in the same group are in the same plane, and the interval angle between the hooks 45 in the same group is 120°. A spacing sleeve 46 is arranged between the two adjacent groups of hooks 45, which can effectively separate the hooks 45. The single hooks 45 in each group of hooks correspond one by one in position, and the whole forms three rows of hook groups arranged in the axial direction of the roller shaft 43.

[0062] When the large-volume sundries are intercepted on the swing rod, the speed reducer motor 41 is powered to be turned on, the intermittent rotation of the roller shaft 43 is realized through the cam divider 42, and the hooks 45 arranged on the roller shaft 43 complete the rotary throwing of the large sundries every 120° of rotation, that is, one row of hook groups 45 completes the process of hooking and rotary throwing of the sundries above the swing rod every time of rotation, which can also prevent the sundries from being thrown out by the hooks 45 before they are completely positioned. The whole rotary throwing process is more controllable. At the same time, the bottom of the base 1 is provided with a recycling box, and the sundries thrown by the roller shaft 43 will fall into the recycling box and wait for further processing.

[0063] As shown in Figures 1 to 3 As shown in the drawings, the top of the base 1 is provided with a mounting frame 2, the top of the mounting frame 2 is provided with a second opening, and the inside of the second opening is provided with a hook cleaning unit 5. The hook cleaning unit 5 is located above the rear side of the rotary roller hook type screening unit 4, and the hook cleaning unit 5 can clean the hooks 45 of the rotary roller hook type screening unit 4 to prevent the hooks 45 from being affected by the winding objects such as ropes to perform the rotary throwing and sundry removal operation, thereby ensuring the normal production of coal carrying. The hook cleaning unit 5 mainly comprises a single rotary scraper assembly and a linkage scraper assembly.

[0064] As shown in Figure 7As shown, the single-rotation scraper assembly includes a rotating shaft 511, a second bearing seat 512, a first cleaning scraper 513, and other structural components. The rotating shaft 511 is horizontally arranged, and both ends of the rotating shaft 511 are connected with the second bearing seat 512 through bearings, and the bottom of the second bearing seat 512 is fixedly arranged on the mounting frame 2. The first cleaning scraper 513 is arranged in multiple, and the first cleaning scraper 513 is uniformly arranged on the rotating shaft 511 along the axial direction of the rotating shaft 511. Each first cleaning scraper 513 is connected with the rotating shaft 511 through a shaft sleeve, and each first cleaning scraper 513 can freely swing to cut off impurities and can be reset by its own gravity.

[0065] In combination Figure 8 As shown, the linkage scraper assembly includes a cylinder, a sliding rail 521, a sliding block 522, an oil cylinder, a square tube 524, and a second cleaning scraper 525, and other structural components. The top of the mounting frame 2 is provided with a cylinder and a sliding rail 521 on both sides, the sliding block 522 is arranged on the sliding rail 521, the piston end of the cylinder is connected with the sliding block 522, and the cylinder can drive the sliding block 522 to move along the sliding rail 521. At the same time, the top of the sliding block 522 is fixedly connected with a third bearing seat 523. The square tube 524 is horizontally arranged, and both ends of the square tube 524 are provided with a transmission shaft, and each transmission shaft is connected with the third bearing seat 523 through a bearing. A plurality of second cleaning scrapers 525 are fixedly connected on the square tube 524 along the length direction of the square tube. The oil cylinder is arranged on the mounting frame 2, and the output shaft of the oil cylinder is connected with one end of the square tube 524, and the oil cylinder can drive the square tube 524 to rotate. The oil cylinder provides power to drive the square tube 524 to rotate, and the second cleaning scraper 525 rotates with the square tube 524, so as to adjust the setting angle of the second cleaning scraper 525, so as to clean the sticky impurities and the rope and other winding objects on the hook claw 45, and ensure the smooth progress of the throwing and impurity removal process.

[0066] In combination Figure 4 As shown, the number of the first cleaning scraper 513 and the second cleaning scraper 525 is the same as the number of each row of hook claw groups and one-to-one correspondence, and the first cleaning scraper 513 and the second cleaning scraper 525 are located between adjacent hook claw groups, which can cut and clean the sticky impurities and the rope and other winding objects on the hook claw 45, so as to maintain the normal operation of the rotating roller hook claw type screening unit 4.

[0067] In combination Figure 9As shown, the cutting heads of the first cleaning scraper 513 and the second cleaning scraper 525 are all three-edged scrapers, and the cutting heads move relative to the hook claws 45 when the hook claws 45 rotate, and the first cleaning scraper 513 and the second cleaning scraper 525 are close to the hook claws 45, so that the cutting heads can cut the sticky impurities and soft impurities on the hook claws 45, thereby enabling the hook claws 45 to normally rotate to hook and spin to remove the impurities. The rotating shaft 511 of the single-rotation scraper assembly is located above the stop position of the rotating roller hook claw type screening unit 4, the first cleaning scraper 513 arranged on the rotating shaft 511 freely swings to cut the soft impurities, and at the same time, the second cleaning scraper 525 is driven to move to hook and cut the impurities by the action of the cylinder, so that the soft impurities on the hook claws 45 can be periodically cleaned.

[0068] In combination Figures 1 to 9 As shown, the utility model discloses a coal impurity removing mechanism with self-cleaning function, which can intercept large stone and other impurities on the swing rod, and then hook and spin to remove the impurities by the rotating roller hook claw type screening unit 4. The rotating roller hook claw type screening unit 4 is provided with a speed reducer 41 and a cam divider 42 to intermittently drive the hook claws 45 to rotate, so that the large impurities intercepted on the swing rod can be thrown into the recovery box arranged at the other end of the base 1 for subsequent processing. The utility model adds the hook cleaning unit 5 to clean the hook claws 45 in the rotating roller hook claw type screening unit 4, so that the sticky impurities and soft impurities such as ropes adhered to the hook claws 45 can be cleaned, thereby ensuring the smooth operation of the hooking and spinning to remove the impurities and the efficiency of coal production and transportation. The coal impurity removing mechanism adds the single-rotation scraper assembly and the linkage scraper assembly to the mounting frame 2 to cut and clean the sticky impurities or soft impurities carried on the hook claws 45, so as to ensure the normal operation of the coal impurity removing mechanism and the impurity removing effect of the coal impurity removing mechanism. The utility model discloses a coal impurity removing mechanism, which is simple in structure, reasonable in design, high in use value and meets the development requirements of modern industry.

[0069] Of course, the above-mentioned only for the preferred embodiment of the utility model, not therefore limit the patent range of the utility model, all in the utility model of the utility model concept, use the utility model specification and the drawing contents make equivalent structure transformation, or direct / indirectly apply in other related technical field all include in the patent protection range of the utility model, should be protected by the utility model.

Claims

1. A raw coal impurity removing mechanism with self-cleaning function, characterized in that, The base, the grate screening unit, the rotary roller hook claw type screening unit and the hook cleaning unit are included. A first opening is arranged at the middle position of the base, wherein the grate screening unit and the rotary roller hook claw type screening unit are arranged at the first opening, the rotary roller hook claw type screening unit is located at the middle position of the base, and the grate screening unit is located at the front side of the rotary roller hook claw type screening unit. The rotary roller hook claw type screening unit includes a roller shaft and a hook claw. Both ends of the roller shaft are connected with a first bearing seat through a bearing, respectively. A plurality of hook claws are arranged on the roller shaft. An installation frame is arranged on the top of the base, a second opening is arranged on the top of the installation frame, and a hook cleaning unit is arranged in the second opening. The hook cleaning unit includes a single-rotation scraper assembly. The single-rotation scraper assembly includes a rotating shaft and a first cleaning scraper. The rotating shaft is arranged horizontally, both ends of the rotating shaft are connected with a second bearing seat through a bearing, and the second bearing seat is arranged on the installation frame.

2. The raw coal impurity removal mechanism with self-cleaning function according to claim 1, characterized in that, A plurality of first cleaning scrapers are arranged on the rotating shaft in the axial direction of the rotating shaft. The hook cleaning unit further includes a linkage scraper assembly. The linkage scraper assembly includes a cylinder, a slide rail, a slide block, a square tube and a second cleaning scraper. The cylinder and the slide rail are arranged on both sides of the top of the installation frame, the slide block is arranged on the slide rail, the piston end of the cylinder is connected with the slide block, and the top of the slide block is fixedly connected with a third bearing seat. The square tube is arranged horizontally, both ends of the square tube are connected with a transmission shaft, and each transmission shaft is connected with a third bearing seat through a bearing.

3. The raw coal impurity removal mechanism with self-cleaning function according to claim 2, characterized in that, A plurality of second cleaning scrapers are fixedly connected on the square tube in the length direction of the square tube. The linkage scraper assembly further includes an oil cylinder for driving the square tube to rotate.

4. The raw coal impurity removal mechanism with self-cleaning function according to claim 2, characterized in that, The oil cylinder is arranged on the installation frame, and the output shaft of the oil cylinder is connected with the square tube.

5. The raw coal impurity removal mechanism with self-cleaning function according to claim 1, characterized in that, The head of the first cleaning scraper and the second cleaning scraper is a three-edged scraper. The rotary roller hook claw type screening unit is provided with an intermittent transmission unit. The intermittent transmission unit includes a speed reducer motor and a cam divider.

6. The raw coal impurity removal mechanism with self-cleaning function according to claim 1, characterized in that, The speed reducer motor is arranged on the base, the speed reducer motor is connected with the cam divider, and the cam divider is connected with the roller shaft. Each three hook claws form a group, wherein the three hook claws in the same group are in the same plane, and the interval angle between the hook claws in the same group is 120°.

7. The raw coal impurity removal mechanism with self-cleaning function according to claim 6, characterized in that, The single hook claws of each group of hook claws correspond to each other in position, and form three rows of hook claw groups arranged in the axial direction of the roller shaft.

8. The raw coal impurity removal mechanism with self-cleaning function according to claim 6, characterized in that, The number of the first cleaning scrapers is the same as the number of the groups of hook claws and corresponds to each other in position.

9. The raw coal impurity removal mechanism with self-cleaning function according to claim 1, characterized in that, A spacing sleeve is arranged between the adjacent two groups of hook claws.

10. The raw coal impurity removal mechanism with self-cleaning function according to claim 1, characterized in that, The first cleaning scraper is installed on the rotating shaft through a shaft sleeve. A recycling box is arranged at the bottom of the base.

Images