Double-geared roller crusher with tooth-shaped clutch

Abstract

The invention discloses a double-geared roller crusher with tooth-shaped clutches, which is suitable for a large surface mine crushing station, a non-transmission side is provided with a synchronous gear, the tooth-shaped clutches are respectively arranged on an output shaft of an auxiliary speed reducer and a roller shaft of a crushing roller, when accumulated materials are processed, a manual operating rod is manually pushed to enable the tooth-shaped clutches to be meshed, an auxiliary motor is started, and the auxiliary motor is started to drive the tooth-shaped clutches to rotate. The crushing roller is driven by the speed reducer, the tooth-shaped clutch and the synchronous gear to rotate and crush materials, then the auxiliary motor is stopped, the manual operating rod is pulled to disengage the clutch, and the clutch is mechanically locked. The device solves the problem of manual cleaning of accumulated materials in the crushing cavity in the prior art, is widely applied to the field of large double-geared roller crushers, and can improve the working efficiency and reduce the labor intensity and the equipment damage risk.

Description

Technical Field

[0001] The invention relates to the technical field of crushing, in particular to a large double-toothed roller crusher with a toothed clutch for crushing open-pit mine strippings. Background Art

[0002] Open-pit coal mining has entered a new stage of development due to its significant characteristics such as large-scale production, high labor productivity, and high resource recovery rate. With the continuous advancement of semi-continuous mining technology, the large-scale development of mobile / semi-mobile crushing systems has been rapid, and double-toothed roller crushers have been widely used in the coal field due to their excellent crushing performance and applicability.

[0003] In the process of crushing open-pit mine stripping materials, the double-toothed roller crusher often produces large pieces of materials, and sometimes even metal parts are mixed in the materials, which causes the crusher to overload, the gear roller to block, and the equipment to shut down. For this reason, a torque-limiting hydraulic coupling is often added to the transmission system to achieve double overload protection with the electronic control protection. In addition, equipment failure in the system will also cause the double-toothed roller crusher to shut down. Regardless of the reason, once the machine is shut down during the crushing operation, a large amount of materials will accumulate in the crushing chamber. When the crusher needs to be started again, it is difficult to start the double-toothed roller crusher directly with load due to the existence of the torque-limiting hydraulic coupling in the system. This requires manual cleaning of the materials accumulated in the crushing chamber, and the double-toothed roller crusher can be started without load after cleaning. Because the double-toothed roller crusher used in open-pit mines has large specifications, the amount of materials that need to be cleaned each time is large. Manual cleaning not only takes a long time, but also has high labor intensity for workers. It is easy to cause damage to equipment parts during the cleaning process, and even there are operational safety issues. Summary of the invention

[0004] In order to solve the problem that the materials in the crushing chamber need to be cleaned manually, it is necessary to study how to start the double-toothed roller crusher at full load through the auxiliary transmission instead of the torque-limiting hydraulic coupling. When the materials in the crushing chamber of the double-toothed roller crusher have been crushed and can be crushed normally, the auxiliary transmission is stopped, the toothed clutch is disengaged manually, and then the main motor is switched to drive the toothed roller to rotate through the torque-limiting hydraulic coupling and the transmission gear box to achieve normal crushing. The present invention discloses a double-toothed roller crusher with a toothed clutch, which can realize the crushing and removal of accumulated materials in the crushing chamber of the double-toothed roller crusher using the torque-limiting hydraulic coupling.

[0005] The specific technical solutions are as follows:

[0006] A double-toothed roller crusher with a toothed clutch comprises an auxiliary motor, an auxiliary reducer, an auxiliary transmission base, a toothed clutch, a synchronous gear, a crushing box, a crushing roller one, a crushing roller two, a particle size adjustment device, a crusher base, a coupling, a reducer, a torque-limiting hydraulic coupling, a main motor base, a main motor, and hydraulic, lubrication, and electronic control systems. A synchronous gear is installed on the outside of the crushing box, and both ends of the toothed clutch are respectively connected to the synchronous gear and the auxiliary reducer, and the auxiliary motor drives the auxiliary reducer on one side of the auxiliary reducer.

[0007] The output shaft of the auxiliary reducer is connected to the shaft sleeve of the toothed clutch, and a keyway is provided on the outer circle of the shaft sleeve. The semi-clutch is connected to the outer circle of the shaft sleeve, and a key is installed in the keyway to connect with the shaft sleeve. One side of the semi-clutch one is arranged with teeth with inclined surfaces, and the outer circle surface of the other side is provided with an annular groove. The semi-clutch two is coaxially arranged with the semi-clutch and installed on the crushing roller one shaft of the crushing box body. The end of the semi-clutch two is arranged with the teeth with inclined surfaces of the semi-clutch one. The semi-slip rings are installed in pairs on the annular grooves. The shift fork is assembled with the semi-slip rings on both sides of the annular groove by pins. The shift fork is also mounted on a long shaft and moves with the long shaft. Supports are installed at both ends of the long shaft. The supports are installed on the auxiliary transmission base and fixed with fasteners. A manual operating lever is installed on the long shaft, and the engagement and disengagement of the two semi-clutches are achieved by pushing and pulling the manual operating lever.

[0008] The semi-slip ring is mounted on the annular groove, a circular guide bar is arranged in the middle of the semi-slip ring, a gap is arranged between the circular guide bar and the annular groove, when the shaft sleeve drives the semi-clutch to rotate, the annular groove and the circular guide bar rotate in coordination.

[0009] The manual operating lever is arranged in an L shape as a whole.

[0010] The synchronous gears are arranged in pairs, and the synchronous gears are fixedly connected with the crushing roller in the form of a gear shaft.

[0011] The advantages of the present invention are: a synchronous gear and a toothed clutch are provided, and the crushing roller is driven to rotate by an auxiliary transmission device, so that the accumulated materials in the crushing chamber can be directly crushed and removed without manual cleaning. The auxiliary transmission is not only used to process the accumulated materials, but also can be used to rotate the crushing roller during maintenance, which is convenient for the maintenance and overhaul of the equipment, improves the operability and maintenance convenience of the equipment, provides more guarantees for the stable operation of the equipment, has a wide range of application value in the technical field of large double-toothed roller crushers, can meet the demand of large open-pit mine crushing stations with a processing capacity of more than 2,000 tons / hour, and has positive significance for promoting the technical development in this field and improving the automation and efficiency level of open-pit mining operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0013] Figure 2 It is a front view of the present invention;

[0014] Figure 3 yes Figure 2 Left view of

[0015] Figure 4 yes Figure 2 A top view of

[0016] Figure 5 It is a three-dimensional diagram of the crushing roller one, the crushing roller two and the particle size adjustment device;

[0017] Figure 6 It is a three-dimensional structural schematic diagram of a tooth clutch;

[0018] Figure 7 It is a three-dimensional picture of the bushing;

[0019] Figure 8 It is a schematic diagram of the three-dimensional structure of the second half clutch;

[0020] Fig. 9 It is a schematic diagram of the three-dimensional structure of the semi-slip ring;

[0021] Fig.10 It is a three-dimensional structural schematic diagram of the manual joystick. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] A double-toothed roller crusher with a toothed clutch comprises an auxiliary motor 1, an auxiliary reducer 2, an auxiliary transmission base 3, a toothed clutch, a synchronous gear 5, a crushing box 6, a crushing roller 1 7, a crushing roller 2 8, a particle size adjustment device 9, a crusher base 10, a coupling 11, a reducer 12, a torque-limiting hydraulic coupling 13, a main motor base 14, a main motor 15, and hydraulic, lubrication, and electronic control systems. A synchronous gear is installed on the outside of the crushing box, and both ends of the toothed clutch are respectively connected to the synchronous gear 5 and the auxiliary reducer 2, and the auxiliary motor 1 drives the auxiliary reducer on one side of the auxiliary reducer 2.

[0024] The output shaft of the auxiliary reducer 2 is connected to the shaft sleeve 401 of the toothed clutch. A keyway is provided on the outer circle of the shaft sleeve 401. The semi-clutch 1 403 is sleeved on the outer circle of the shaft sleeve 401, and a key 402 is installed in the keyway to connect with the shaft sleeve 401. One side of the semi-clutch 1 403 is arranged with teeth with inclined surfaces, and the outer circle surface of the other side has an annular groove. The semi-clutch 2 404 is coaxially arranged with the semi-clutch 1 403 and is installed on the crushing roller 1 7 shaft of the crushing box 6. The end of the semi-clutch 2 404 is connected to the semi-clutch 1 403. 3 with inclined teeth follow the shape setting, the half slip ring 405 is installed in pairs on the annular groove, the shift fork 408 is assembled with the half slip ring 405 on both sides of the annular groove through the pin 409, the shift fork is also set on a long shaft 410, and moves with the long shaft 410, the two ends of the long shaft 410 are installed with a support 411, the support 411 is installed on the auxiliary transmission base 3, and is fixed with fasteners; a manual operating lever 412 is installed on the long shaft 410, and the engagement and disengagement of the two half clutches are realized by pushing and pulling the manual operating lever 412.

[0025] The half slip ring 405 is mounted on the annular groove, a circular guide bar 405a is provided in the middle of the half slip ring, a gap is provided between the circular guide bar 405a and the annular groove, when the shaft sleeve 401 drives the half clutch 1 403 to rotate, the annular groove and the circular guide bar 405a rotate in coordination.

[0026] The manual operating lever 412 is configured in an L-shape as a whole.

[0027] The synchronous gears 5 are arranged in pairs, and the synchronous gears 5 are fixedly connected with the crushing roller in the form of a gear shaft.

[0028] The working principle of the present invention is:

[0029] Normal crushing operation

[0030] The main motor starts, the output shaft of the main motor rotates, and the power is transmitted to the input shaft of the reducer through the torque-limiting hydraulic coupling. After the reducer adjusts the speed and torque, the power is transmitted to the roller shafts of crushing roller one and crushing roller two through the coupling, driving the two crushing rollers to rotate.

[0031] After the material enters the crushing chamber, it is crushed under the extrusion and shearing action of the two crushing rollers. The particle size of the crushed material is controlled by the particle size adjustment device, which adjusts the distance between its crushing teeth and the crushing rollers through the screw to adjust the discharge particle size.

[0032] Handling of accumulated materials in the crushing chamber

[0033] When the crushing operation stops due to various reasons, resulting in a large amount of material accumulation in the crushing chamber, it is necessary to manually push the manual joystick.

[0034] The displacement of the manual operating lever drives the long shaft to move and rotate, and the shift fork installed on the long shaft moves. The shift fork is connected to the semi-slip ring through a pin, thereby driving the semi-slip ring to move in the annular groove on the outer surface of the semi-clutch.

[0035] The half slip ring pushes the half clutch 1 to slide axially on the shaft sleeve, so that the half clutch 1 of the tooth clutch is engaged with the half clutch 2 installed on the first shaft of the crushing roller, thereby realizing the connection between the auxiliary transmission and the crushing roller.

[0036] Start the auxiliary motor, and after the power is decelerated and torque-increased by the auxiliary reducer, it is transmitted to the crushing roller 1 and the crushing roller 2 through the tooth clutch and the synchronous gear, driving the two crushing rollers to rotate and crush the materials accumulated in the crushing chamber. The torque transmitted to the crushing roller by the auxiliary motor meets the crushing requirements, but its speed is lower than the speed during normal crushing to adapt to the working conditions when processing accumulated materials.

[0037] When the material in the crushing chamber is crushed, stop the auxiliary motor, then pull back the manual operating lever to disengage the tooth clutch and fix it mechanically to prevent accidental engagement of the half clutch.

[0038] At this time, the double-toothed roller crusher returns to the normal crushing preparation state. The main motor can be started at any time according to system requirements, entering the normal crushing working state and continuing the material crushing operation.

Claims

1. A double-toothed roller crusher with a toothed clutch, comprising a crushing box, a first crushing roller, a second crushing roller, a particle size adjustment device, a crusher base, a coupling, a reducer, a torque-limiting hydraulic coupling, a main motor base, a main motor, and a hydraulic, lubricating, and electronic control system, characterized in that: It also includes an auxiliary motor, an auxiliary reducer, an auxiliary transmission base, a toothed clutch, and a synchronous gear; a synchronous gear is installed on the outside of the crushing box, and both ends of the toothed clutch are respectively connected to the synchronous gear and the auxiliary reducer, and the auxiliary motor drives the auxiliary reducer on one side of the auxiliary reducer. The synchronous gears are arranged in pairs, and the synchronous gears are fixedly connected to the crushing roller in the form of a gear shaft.

2. The double-toothed roller crusher with toothed clutch according to claim 1 is characterized in that: The output shaft of the auxiliary reducer is connected to the shaft sleeve of the toothed clutch, and a keyway is provided on the outer circle of the shaft sleeve. The semi-clutch is connected to the outer circle of the shaft sleeve, and a key is installed in the keyway to connect with the shaft sleeve. One side of the semi-clutch one is arranged with teeth with inclined surfaces, and the outer circle surface of the other side is provided with an annular groove. The semi-clutch two is coaxially arranged with the semi-clutch and installed on the crushing roller one shaft of the crushing box body. The end of the semi-clutch two is arranged with the teeth with inclined surfaces of the semi-clutch one. The semi-slip rings are installed in pairs on the annular grooves. The shift fork is assembled with the semi-slip rings on both sides of the annular groove by pins. The shift fork is also mounted on a long shaft and moves with the long shaft. Supports are installed at both ends of the long shaft. The supports are installed on the auxiliary transmission base and fixed with fasteners. A manual operating lever is installed on the long shaft, and the engagement and disengagement of the two semi-clutches are achieved by pushing and pulling the manual operating lever.

3. The double-toothed roller crusher with toothed clutch according to claim 1, characterized in that: The semi-slip ring is mounted on the annular groove, a circular guide bar is arranged in the middle of the semi-slip ring, a gap is arranged between the circular guide bar and the annular groove, when the shaft sleeve drives the semi-clutch to rotate, the annular groove and the circular guide bar rotate in coordination.

4. The double-toothed roller crusher with toothed clutch according to claim 1, characterized in that: The manual operating lever is arranged in an L shape as a whole.

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