Internal drive crushing device for roller crusher

Abstract

The present invention relates to an internally driven crushing device for a double-roll crusher, and belongs to the technical field of crushers. It comprises a crushing roller, wherein a plurality of reinforcing ribs arranged longitudinally or circumferentially are arranged inside the crushing roller; a coaxially arranged fixed shaft is arranged inside the crushing roller, and a support platform is arranged on the fixed shaft; a driving mechanism for driving the crushing roller to rotate is installed on the support platform; a detection mechanism for detecting the temperature of the driving mechanism is also arranged on the support platform; a vibration mechanism is installed inside the crushing roller, and the vibration mechanism is used in conjunction with the detection mechanism; a conductive mechanism movably connected to the fixed shaft is installed inside the crushing roller on one side of the vibration mechanism; support assemblies are installed at both ends of the crushing roller, and the fixed shaft is movably mounted in the middle of the support assembly. The present invention provides an internally driven crushing device for a double-roll crusher, which has an internally driven power design, can realize the elastic connection between the roller and the frame, adds a vibration mechanism, and avoids the occurrence of material blockage.

Description

Technical Field

[0001] The invention relates to an internal drive crushing device for a double-roll crusher, belonging to the technical field of crushers. Background Art

[0002] Roller crusher, also known as double-roll crusher, is an advanced form of roller crusher, widely used in metallurgy, building materials, refractory materials and other industrial sectors. Its unique crushing mechanism enables it to perform well in processing materials of medium and high hardness. Medium hardness ore usually refers to ores with a Mohs hardness between 3 and 6. As for high hardness ores, generally speaking, ores with a Mohs hardness of 7 and above can be considered to be of high hardness, especially for the medium and fine crushing of common materials such as limestone, slag, coke, coal, etc. The effect is particularly significant. Compared with other types of crushers, the roller crusher shows multiple advantages. First, it has an excellent crushing ratio, which means that the particle size of the material can be reduced more effectively in a single operation, thereby improving production efficiency. Secondly, this crusher has no special requirements for the dryness of the material, and can maintain stable performance even when processing materials with high humidity, greatly expanding its application range.

[0003] The existing Chinese invention patent with publication number CN112473818A is a double-roll crusher with a grinding roller of a fixed shaft support structure. The invention comprises a crusher frame, a fixed roller part and a movable roller part are arranged on the crusher frame, a crushing discharge port is formed between the fixed roller part and the movable roller part, and a driving member is arranged on the crusher frame. The invention provides a discharge port adjustment component, and when crushing ores of different sizes, the discharge port adjustment component drives the movable roller part to move closer to or away from one end of the fixed roller part, thereby adjusting the size of the crushing discharge port.

[0004] The existing Chinese invention patent with publication number CN113413960A is a double-roll crusher, including a chassis and a crushing mechanism. The chassis is placed on the ground, the left end of the upper end face of the chassis is a feed port, the lower end of the chassis is provided with a discharge slot, and the upper end of the chassis is provided with a crushing mechanism. The present invention adopts a design concept of combining crushing, dust removal and screening. The present invention can simultaneously remove the dust generated by the crushing during the material receiving the crushing process, thereby avoiding the situation where a large amount of dust overflows and causes pollution to the working environment, and reduces the probability of dust accumulating on other structures and affecting the operation of the crusher. At the same time, the screen plate designed by the present invention screens the crushed material so that unqualified material fragments can be crushed again.

[0005] In the process of implementing the technical solution of this application, the inventor discovered that there are at least the following technical problems in the prior art:

[0006] It is difficult to adjust the roller gap of the above two roller crushers in actual production. If the material humidity is too high, the particle size is too large or the feed speed is too fast, the rollers may get stuck or the material may get blocked. Summary of the invention

[0007] The technical problem to be solved by the present invention is: to overcome the deficiencies of the prior art and provide an internally driven crushing device for a double-roll crusher. The internally driven power design can realize the elastic connection between the roller and the frame, and a vibration mechanism is added to avoid the occurrence of blockage.

[0008] The internal drive crushing device for a double-roll crusher of the present invention comprises a crushing roller, and a detachably mounted crushing tooth plate is provided on the outside of the crushing roller;

[0009] The crushing roller is provided with a plurality of longitudinal or circumferentially arranged reinforcing ribs inside; the reinforcing ribs are divided into reinforcing ribs I and II;

[0010] A coaxially arranged fixed shaft is provided inside the crushing roller, and a supporting platform is provided on the fixed shaft;

[0011] A driving mechanism for driving the crushing roller to rotate is installed on the supporting platform;

[0012] The supporting platform is also provided with a detection mechanism for detecting the temperature of the driving mechanism;

[0013] A vibration mechanism is installed inside the crushing roller, and the vibration mechanism is used in conjunction with the detection mechanism;

[0014] A conductive mechanism movably connected to the fixed shaft is installed inside the crushing roller on one side of the vibration mechanism;

[0015] Support components are installed at both ends of the crushing roller, and a fixed shaft is movably mounted in the middle of the support component.

[0016] Further, the support platform includes a cross support frame, and a support plate is fixed to the outer end of the cross support frame;

[0017] The support plate is fixedly arranged on the outer surface of the fixed shaft, and a driving mechanism and a detection mechanism are installed on the support plate.

[0018] Furthermore, the driving mechanism includes a driving motor mounted on the supporting platform, the output end of the driving motor is connected to a protection component, one end of the protection component is connected to the input end of the reduction box, the input end of the reduction box is connected to a transmission shaft, a supporting seat body is mounted on the supporting platform corresponding to the transmission shaft, the supporting seat body movably supports the transmission shaft, and an active external gear is mounted on the end of the transmission shaft;

[0019] A driven internal gear which cooperates with the driving external gear is fixed on the inner ring of the crushing roller.

[0020] Furthermore, the protection component is a hydraulic coupler, the output end of the drive motor is connected to the input end of the hydraulic coupler, and the output end of the hydraulic coupler is connected to the input end of the reduction gearbox.

[0021] Furthermore, driving external gears are arranged at both ends of the transmission shaft, and driven internal gears used in conjunction with the driving external gears are fixed at both ends of the inner ring of the crushing roller.

[0022] Furthermore, the driving mechanism is centrally symmetrically arranged on the supporting platform.

[0023] Furthermore, the detection mechanism includes a bracket installed on the supporting platform, a temperature sensor is installed on the bracket, and a detection end of the temperature sensor is arranged correspondingly beside the driving motor.

[0024] Furthermore, the vibration mechanism includes a mounting seat, a vibration motor is mounted on the mounting seat, and an eccentric rotating member is fixedly mounted on the output end of the vibration motor;

[0025] A mounting plate is fixed to the inner ring of the crushing roller, and a mounting seat is mounted on the mounting plate.

[0026] Furthermore, the vibration mechanism is arranged symmetrically in the center of the crushing roller.

[0027] Further, the support assembly includes a support plate, a rolling bearing is installed between the support plate and the fixed shaft, and the rolling bearings are arranged correspondingly on both sides;

[0028] An annular connecting plate is fixed to the end of the inner ring of the crushing roller, and the outer ring of the supporting plate is installed on the annular connecting plate.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] The present invention adopts an internal power drive design, which directly drives the crushing roller to rotate through an internal drive mechanism. This design allows the original fixed connection between the frame and the crushing roller to be changed into an adjustable elastic connection through the internal drive design. The original fixed connection requires the installation of a power mechanism on the external frame, and then the power is transmitted to the crushing roller through gears, belt drives or chain drives. If an elastic connection is used to adjust the gap between the two crushing rollers, it is impossible to use gears, belt drives or chain drives; if an elastic connection design is adopted between the crushing roller and the frame, this design can effectively reduce the impact and vibration generated during the material crushing process, improve the stability and reliability of the equipment, and extend the service life of the equipment; a vibration mechanism is installed inside the crushing roller, and high-frequency vibration can be generated through the drive of a vibration motor, which helps to better separate and crush the material during the crushing process, effectively avoids the occurrence of material blockage, and improves the crushing efficiency and the continuous working ability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 is a schematic diagram of the internal structure of Embodiment 1 of the present invention;

[0032] Figure 2 yes Figure 1 A partial enlarged view of the middle part;

[0033] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle;

[0034] Figure 4 is a schematic diagram of the driving mechanism structure of Example 1 of the present invention;

[0035] Figure 5 Schematic diagram of the structure of the crushing roller of Example 1 of the present invention;

[0036] Figure 6 is a schematic diagram of the conductive mechanism structure of Example 1 of the present invention;

[0037] Figure 7 is a schematic diagram of the structure of the support assembly of Example 1 of the present invention;

[0038] Figure 8 is a full cross-sectional view of a support assembly according to Embodiment 1 of the present invention;

[0039] Fig. 9 is a schematic structural diagram of Embodiment 1 of the present invention;

[0040] Fig.10 is a schematic diagram of the driving mechanism structure of Example 2 of the present invention;

[0041] In the figure:

[0042] 1. Crushing roller; 11. Reinforcement rib I; 12. Reinforcement rib II; 13. Annular connecting plate; 14. Mounting plate; 141. Wire slot hole; 15. Driven internal gear; 16. Raised strip;

[0043] 2. Crushing tooth plate;

[0044] 3. Support assembly; 31. Positioning pin; 32. Support plate; 33. Rolling bearing;

[0045] 4. Vibration mechanism; 41. Mounting seat; 42. Vibration motor; 43. Eccentric rotating part;

[0046] 5. Driving mechanism; 51. Driving motor; 52. Protective assembly; 53. Speed ​​reducer; 54. Transmission shaft; 55. Support seat; 56. Active external gear;

[0047] 6. Support platform; 61. Cross support frame; 62. Support plate;

[0048] 7. Fixed shaft; 71. Threading hole; 72. Keyway hole; 73. Brush plate;

[0049] 8. Detection mechanism; 81. Bracket; 82. Temperature sensor;

[0050] 9. Conductive mechanism; 91. Locking wheel set; 92. Right angle bracket; 921. Adjustment hole; 922. Mounting part; 923. Elastic locking piece; 93. Brush head; 94. Round tube; 95. Fixing plate;

[0051] 100. Torque detection sensor. DETAILED DESCRIPTION

[0052] Example 1

[0053] like Figures 1 to 9 As shown, the internal drive crushing device for a double-roll crusher of the present invention comprises a crushing roller 1, and a detachably mounted crushing tooth plate 2 is provided on the outside of the crushing roller; the crushing tooth plate 2 is mounted on the outer ring of the crushing roller 1 by screws, and a raised strip 16 for positioning the crushing tooth plate 2 is provided on the outer ring of the crushing roller 1;

[0054] A plurality of longitudinally or circumferentially arranged reinforcing ribs are provided inside the crushing roller 1; the reinforcing ribs are divided into reinforcing ribs I11 and reinforcing ribs II12;

[0055] A coaxially arranged fixed shaft 7 is provided inside the crushing roller 1, and a supporting platform 6 is provided on the fixed shaft 7; a threading hole 71 is provided inside the fixed shaft 7, and a keyway hole 72 for fixing is provided at the end of the fixed shaft 7;

[0056] A driving mechanism 5 for driving the crushing roller to rotate is installed on the supporting platform 6;

[0057] The support platform 6 is also provided with a detection mechanism 8 for detecting the temperature of the driving mechanism 5;

[0058] A vibration mechanism 4 is installed inside the crushing roller 1, and the vibration mechanism 4 is used in conjunction with the detection mechanism 8;

[0059] A conductive mechanism 9 movably connected to the fixed shaft 7 is installed inside the crushing roller 1 on one side of the vibration mechanism 4;

[0060] like Figure 3 or Figure 5As shown, the conductive mechanism 9 includes a right-angle frame 92, and locking wheel sets 91 are installed at the two ends of the right-angle frame 92. The locking wheel set 91 includes two rotating wheels installed on the locking frame, and one of the locking wheel sets 91 is elastically adjustable. A brush head 93 is installed in the middle of the right-angle frame 92. The brush of the brush head 93 is usually elastically connected to the brush head 93. One end of the brush head 93 is connected to a rigid round tube 94, and a fixing plate 95 is installed at the end of the round tube 94 away from the brush head 93.

[0061] The fixing plate 95 is fixed to the mounting plate 14 by screws, and the mounting plate 14 is provided with a wire slot hole 141 for passing the wires required by the vibration motor 42;

[0062] An annular brush sheet 73 is mounted on the outer surface of the fixed shaft 7 corresponding to the brush head 93 , and the brush head 93 is pressed against the brush sheet 73 by the locking wheel assembly 91 .

[0063] An adjustment hole 921 is provided at one end of the right angle frame 92 for the locking wheel set 91, and an elastic locking member 923 is installed at one end corresponding to the locking wheel set 91. An extended mounting portion 922 is provided at one end of the right angle frame 92, and an elastic locking member 923 is installed on the mounting portion 922;

[0064] The elastic locking member 923 includes an adjusting rod threadedly engaged with the mounting portion 922, one end of the adjusting rod abuts against the locking wheel set 91 through a compression spring and a base at the end of the compression spring, so that the two corresponding locking wheel sets 91 can be locked to the outer ring of the fixed shaft 7, thereby making the brush head 93 abut against the brush sheet 73, and the locking force between the locking wheel set 91 and the fixed shaft 7 can be adjusted accordingly by rotating the adjusting rod.

[0065] Support components 3 are installed at both ends of the crushing roller 1, and a fixed shaft 7 is movably mounted in the middle of the support component 3.

[0066] The support platform 6 includes a cross support frame 61, and a support plate 62 is fixed to the outer end of the cross support frame 61;

[0067] The support plate is fixedly arranged on the outer surface of the fixed shaft 7 , and the driving mechanism 5 and the detection mechanism 8 are installed on the support plate 62 .

[0068] like Figure 4 As shown, the driving mechanism 5 includes a driving motor 51 mounted on the supporting platform 6, the output end of the driving motor 51 is connected to a protection component 52, one end of the protection component 52 is connected to the input end of a reduction box 53, the input end of the reduction box 53 is connected to a transmission shaft 54, a support seat body 55 is mounted on the supporting platform 6 corresponding to the transmission shaft 54, the support seat body 55 movably supports the transmission shaft 54, and an active external gear 56 is mounted on the end of the transmission shaft 54;

[0069] A driven internal gear 15 that cooperates with the driving external gear 56 is fixed to the inner ring of the crushing roller 1 .

[0070] The protection component 52 is a hydraulic coupler. The output end of the drive motor 51 is connected to the input end of the hydraulic coupler, and the output end of the hydraulic coupler is connected to the input end of the reduction box 53. The hydraulic coupler has the functions of flexible transmission automatic adaptation, impact mitigation and torsional vibration isolation, improved power machine starting ability, overload protection, coordinated multi-power machine sequential start, load balancing and smooth paralleling, flexible braking and deceleration, etc. In addition, it can also delay the slow start of the working machine, can smoothly start large inertia machinery, has strong adaptability to the environment, and can work in cold, humid, dusty, and explosion-proof environments. The transmitted power is proportional to the square of its input speed. When the input speed is high, the energy capacity is large and the performance-price ratio is high.

[0071] Driving external gears 56 are arranged at both ends of the transmission shaft 54, and driven internal gears 15 used in conjunction with the driving external gears 56 are fixed at both ends of the inner ring of the crushing roller 1.

[0072] like Figure 4 As shown, the driving mechanism 5 is arranged symmetrically on the supporting platform 6 and arranged below the relative supporting platform 6. The driving mechanism 5 has better stability when driving the crushing roller 1. At the same time, the driving external gear 56 and the driven internal gear 15 have more matching points, which greatly reduces the wear of the driving external gear 56.

[0073] The detection mechanism 8 includes a bracket 81 installed on the support platform 6, and a temperature sensor 82 is installed on the bracket 81. The detection end of the temperature sensor 82 is arranged correspondingly next to the drive motor 51. The temperature sensor 82 is against the outer casing of the drive motor 51 or is reserved 10mm to 100mm from the outer casing of the drive motor 51. It can be set to 10mm, 20mm or 100mm. The purpose is to ensure the detection accuracy of the temperature sensor 82.

[0074] like Figure 2 or Figure 3 As shown, the vibration mechanism 4 includes a mounting seat 41, a vibration motor 42 is mounted on the mounting seat 41, and an eccentric rotating member 43 is fixedly mounted on the output end of the vibration motor 42;

[0075] A mounting plate 14 is fixed to the inner ring of the crushing roller 1 , and a mounting seat 41 is mounted on the mounting plate 14 .

[0076] The vibration mechanism 4 is centrally symmetrically arranged in the crushing roller 1. Here, the centrally symmetrical arrangement means that one end of the vibration mechanism 4 is relatively arranged above the crushing roller 1, and the other end is relatively arranged below the crushing roller 1. This can effectively ensure the weight balance inside the crushing roller 1 and make the rotation of the crushing roller 1 more stable.

[0077] The support assembly 3 includes a support plate 32, and a rolling bearing 33 is installed between the support plate 32 and the fixed shaft 7. The rolling bearings 33 are arranged correspondingly on both sides to increase the stability of the support;

[0078] An annular connecting plate 13 is fixed to the inner end of the crushing roller 1, and the outer ring of the support plate 32 is installed on the annular connecting plate 13; a positioning pin 31 used in conjunction with the annular connecting plate 13 is installed on the support plate 32, and the positioning pin 31 is used for positioning when installing the support plate 32.

[0079] Working process or working principle:

[0080] When the crushing roller 1 is stuck or blocked during rotation, the hydraulic coupling is disengaged and the drive motor 51 is protected from overload. At this time, the torque of the drive motor 51 increases and the drive motor 51 generates heat, so that the temperature sensor 82 detects the temperature rise, thereby energizing the brush sheet 73 and transmitting electricity to the vibration motor 42 through the brush head 93. At this time, the vibration motor 42 is activated. When the jam or blockage is released, the hydraulic coupling is connected, and the drive motor 51 causes the transmission shaft 54 ​​to rotate again. Usually, the vibration motor 42 here will vibrate for ten seconds to one minute, and is usually adjusted to be powered on for ten seconds. When the vibration motor 42 rotates, the crushing roller 1 vibrates as a whole. At this time, with the elastic connection with the frame, the jam or blockage will be released instantly.

[0081] Example 2

[0082] The difference from Example 1 is:

[0083] like Fig.10 As shown, the detection mechanism 8 can be a torque detection sensor 100 arranged on the transmission shaft 54. The torque detection sensor mainly detects the torsion force cabinet on various rotating or non-rotating mechanical parts. The torque detection sensor converts the physical change of torque into an accurate electrical signal. When the transmission shaft 54 ​​does not rotate, a signal can be sent to activate the vibration mechanism 4. The use of the torque detection sensor 100 makes the detection more accurate. When the transmission shaft 54 ​​rotates again, a signal is sent to stop the vibration mechanism 4.

[0084] The description of the direction and relative position relationship of the structure in the present invention, such as the description of front, back, left, right, up, and down, does not constitute a limitation of the present invention, but is only for the convenience of description.

Claims

1. An internal drive crushing device for a double-roll crusher, characterized in that: It comprises a crushing roller (1), the outside of which is provided with a detachably mounted crushing tooth plate (2); The crushing roller (1) is provided with a plurality of reinforcing ribs arranged longitudinally or circumferentially; A coaxially arranged fixed shaft (7) is provided inside the crushing roller (1), and a supporting platform (6) is provided on the fixed shaft (7); A driving mechanism (5) for driving the crushing roller to rotate is installed on the supporting platform (6); A detection mechanism (8) for detecting the temperature of the driving mechanism (5) is also provided on the supporting platform (6); A vibration mechanism (4) is installed inside the crushing roller (1), and the vibration mechanism (4) is used in conjunction with the detection mechanism (8); The vibration mechanism (4) comprises a mounting seat (41), a vibration motor (42) is mounted on the mounting seat (41), and an eccentric rotating member (43) is fixedly mounted on the output end of the vibration motor (42); A mounting plate (14) is fixed to the inner ring of the crushing roller (1), and a mounting seat (41) is mounted on the mounting plate (14); A conductive mechanism (9) movably connected to the fixed shaft (7) is installed inside the crushing roller (1) on one side of the vibration mechanism (4); The conductive mechanism (9) comprises a right-angle frame (92), and locking wheel sets (91) are installed at two ends of the right-angle frame (92). The locking wheel sets (91) include two rotating wheels installed on the locking frame, and one of the locking wheel sets (91) is elastically adjustable. A brush head (93) is installed in the middle of the right-angle frame (92), and the brush of the brush head (93) is usually elastically connected to the brush head (93). One end of the brush head (93) is connected to a rigid round tube (94), and a fixing plate (95) is installed at one end of the round tube (94) away from the brush head (93). The fixing plate (95) is fixed to the mounting plate (14) by means of screws, and a wire slot hole (141) is correspondingly provided on the mounting plate (14) for passing the wires required by the vibration motor (42); An annular brush sheet (73) is mounted on the outer surface of the fixed shaft (7) corresponding to the brush head (93), and the brush head (93) is pressed against the brush sheet (73) by a locking wheel assembly (91); Support assemblies (3) are installed at both ends of the crushing roller (1), and a fixed shaft (7) is movably mounted in the middle of the support assembly (3); An adjustment hole (921) is provided at one end of the right-angle frame (92) for the locking wheel assembly (91), an elastic locking member (923) is installed at one end corresponding to the locking wheel assembly (91), and an extended mounting portion (922) is provided at one end of the right-angle frame (92), and an elastic locking member (923) is installed on the mounting portion (922); The elastic locking member (923) comprises an adjusting rod threadedly engaged with the mounting portion (922); one end of the adjusting rod abuts against the locking wheel set (91) via a compression spring and a base at the end of the compression spring, so that two corresponding locking wheel sets (91) can be locked to the outer ring of the fixed shaft (7), thereby causing the brush head (93) to abut against the brush sheet (73); and the locking force between the locking wheel set (91) and the fixed shaft (7) can be adjusted accordingly by rotating the adjusting rod; The driving mechanism (5) comprises a driving motor (51) mounted on the supporting platform (6); the output end of the driving motor (51) is connected to a protection component (52); one end of the protection component (52) is connected to the input end of a reduction box (53); the input end of the reduction box (53) is connected to a transmission shaft (54); a supporting seat body (55) is mounted on the supporting platform (6) corresponding to the transmission shaft (54); the supporting seat body (55) movably supports the transmission shaft (54); and an active external gear (56) is mounted on the end of the transmission shaft (54); A driven internal gear (15) is fixed to the inner ring of the crushing roller (1) and is used in conjunction with the driving external gear (56); The protection component (52) is a hydraulic coupler, the output end of the drive motor (51) is connected to the input end of the hydraulic coupler, and the output end of the hydraulic coupler is connected to the input end of the reduction box (53); Driving external gears (56) are arranged at both ends of the transmission shaft (54), and driven internal gears (15) used in conjunction with the driving external gear (56) are fixed at both ends of the inner ring of the crushing roller (1).

2. The internal drive crushing device for a double-roll crusher according to claim 1, characterized in that: The support platform (6) comprises a cross support frame (61), and a support plate (62) is fixed to the outer end of the cross support frame (61); The support plate is fixedly arranged on the outer surface of the fixed shaft (7), and a driving mechanism (5) and a detection mechanism (8) are mounted on the support plate (62).

3. The internal drive crushing device for a double-roll crusher according to claim 1, characterized in that: The driving mechanism (5) is centrally symmetrically arranged on the supporting platform (6).

4. The internal drive crushing device for a double-roll crusher according to claim 3, characterized in that: The detection mechanism (8) comprises a bracket (81) mounted on the support platform (6), a temperature sensor (82) being mounted on the bracket (81), and a detection end of the temperature sensor (82) being arranged correspondingly beside the drive motor (51).

5. The internal drive crushing device for a double-roll crusher according to claim 4, characterized in that: The vibration mechanism (4) is arranged symmetrically within the center of the crushing roller (1).

6. The internal drive crushing device for a double-roll crusher according to claim 1, characterized in that: The support assembly (3) comprises a support plate (32), a rolling bearing (33) is installed between the support plate (32) and the fixed shaft (7), and the rolling bearings (33) are arranged correspondingly on both sides; An annular connecting plate (13) is fixed to the end of the inner ring of the crushing roller (1), and the outer ring of the supporting plate (32) is mounted on the annular connecting plate (13).

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