CN212576471U

CN212576471U - Single-shaft crusher

Info

Publication number: CN212576471U
Application number: CN202020782212.0U
Authority: CN
Inventors: 王广民; 皮尔让·夏尔诺
Original assignee: Sid Machinery Beijing Co ltd
Current assignee: Sid Machinery Beijing Co ltd
Priority date: 2020-05-12
Filing date: 2020-05-12
Publication date: 2021-02-23
Anticipated expiration: 2030-05-12

Abstract

The utility model provides a single-shaft crusher, including broken box, move sword, stationary knife, with move driving motor, the driving motor erection support that the sword arbor is connected, the driving motor erection support includes: the upper support is suitable for detachably mounting a driving motor; the lower support is detachably connected with the crushing box body; the sliding mechanism is suitable for enabling the upper support to be arranged on the lower support in a manner of sliding along the axial direction of the driving motor; the adjusting mechanism is suitable for adjusting the position of the upper support on the lower support; and the locking mechanism is suitable for locking the position of the upper support on the lower support. The single-shaft crusher is provided with the driving motor mounting support, the position of the motor can be axially adjusted, the driving mode can be conveniently changed, and the motor can be conveniently separated from a cutter shaft; by adopting the permanent magnet synchronous motor and arranging the frequency converter, the driving efficiency can be improved, and the energy consumption can be reduced; and set up torque limiter overload protection, detect and cool off driving motor temperature, set up the cis-position ware and ensure that the access door body closes properly, make equipment operation security, stability higher.

Description

Single-shaft crusher

Technical Field

The utility model belongs to the technical field of mechanical equipment, concretely relates to single-shaft crusher.

Background

The single-shaft crusher is also called a single-shaft shredder and a fine crusher and generally comprises a crushing box body, a movable knife, a fixed knife and a driving motor, wherein the movable knife, the fixed knife and the driving motor are arranged in the crushing box body, the driving motor is connected with a knife shaft of the movable knife, the knife shaft of the movable knife is driven by the driving motor to rotate, the movable knife body arranged on the knife shaft is driven to move and interact with the fixed knife arranged in the crushing box body, and therefore materials in the crushing box body are shredded, sheared and extruded, and the materials are crushed into small-particle-size particles. The single-shaft crusher is widely applied to crushing various solid wastes and has the advantages of small discharge granularity, wide material applicability, high efficiency and the like.

However, there are still some problems with existing single-shaft crushers: 1. the driving motor of the crusher is fixed in mounting position, so that the driving mode is inconvenient to replace; or the adjustable range is limited, and the driving motor cannot be adjusted in an axial direction in a fine mode so as to adapt to installation of couplers of different sizes and brands; the rough adjustment can not be carried out in the axial direction, and the driving motor can be overhauled or separated from the crusher only by dismantling the support of the driving motor; 2. the driving mode of the crusher usually adopts asynchronous motor acceleration and deceleration machine driving or hydraulic driving, and in the operation process, the hydraulic driving torque is large but the system efficiency is low, the energy consumption is large, the torque is small when the asynchronous motor acceleration and deceleration machine driving is in an ultra-low speed state, and the system is unstable; 3. the crusher has safe operation and poor stability, for example, the driving motor has fixed operation frequency and high energy consumption; no overload protection, easy damage of the driving motor and the like.

SUMMERY OF THE UTILITY MODEL

The utility model provides a single-shaft crusher, a driving motor is arranged on a crushing box body through a driving motor mounting support, and can be adjusted finely or coarsely along the axial direction, so that the driving mode can be conveniently changed, and couplings with different sizes and the separation of a motor and a movable cutter shaft can be conveniently realized; the permanent magnet synchronous motor is selected as the driving mode, and the frequency converter is arranged, so that the driving efficiency is improved, and the energy is saved and the efficiency is high in the working process; the overload protection is carried out by arranging the torque limiter, the temperature of the driving motor is detected and cooled, the cis-position device is arranged to ensure that the access doors are closed in sequence, the opening and closing state of the access doors is detected through the safety door switch, the control circuit is disconnected when the access doors are opened, the motor cannot be started, and the operation safety and the stability of the equipment are higher.

In order to solve the problem, the utility model provides a single-shaft crusher, include broken box, locate in the broken box move sword and stationary knife, with move the driving motor that the arbor of sword is connected, still include driving motor erection support, driving motor erection support includes:

the upper support is suitable for detachably mounting the driving motor;

the lower support is detachably connected with the crushing box body;

the sliding mechanism is arranged between the upper support and the lower support and is suitable for enabling the upper support to be arranged on the lower support in a sliding manner along the axial direction of the driving motor;

the adjusting mechanism is suitable for adjusting the position of the upper support on the lower support;

and the locking mechanism is arranged between the upper support and the lower support and is suitable for locking the position of the upper support on the lower support.

Preferably, the driving motor is a permanent magnet synchronous motor.

Preferably, the single-shaft crusher further comprises a coupler and a torque limiter, the output shaft of the driving motor is connected with the driving end of the torque limiter through the coupler, and the driven end of the torque limiter is connected with the cutter shaft of the movable cutter.

Preferably, the single-shaft crusher further comprises:

the speed inductor is arranged on the cutter shaft of the movable cutter;

the frequency converter is electrically connected with the driving motor and the speed inductor respectively;

the controller is electrically connected with the frequency converter; the controller controls the rotating speed of the driving motor through the frequency converter.

Preferably, the driving motor is a water-cooled motor, and the single-shaft crusher further comprises:

a water supply port of the cooler is connected with a cooling water inlet of the water-cooled motor, and a water return port of the cooler is connected with a cooling water outlet of the water-cooled motor;

the temperature sensor is arranged in the inner cavity of the water-cooling motor; the controller is electrically connected with the cooler and the temperature sensor respectively, and the controller controls the cooler to start and stop according to a temperature signal detected by the temperature sensor.

Preferably, the single-shaft crusher further comprises:

the maintenance window is arranged on the side wall of the crushing box body;

the maintenance door bodies are symmetrically arranged on the left side and the right side of the maintenance window and are hinged with the maintenance window;

the cis-position device is arranged between the maintenance window and the maintenance door body;

and the safety door switch is arranged on the maintenance door body and is electrically connected with the controller.

Preferably, the stationary knife includes:

the fixed cutter seat is arranged on the crushing box body;

the fixed cutter body is arranged on the fixed cutter seat;

the cutter holder positioning grooves are arranged on the bottom surface of the cutter holder; the cutter holder positioning grooves are arranged in a direction parallel to the cutter shaft of the movable cutter;

the crushing box body is provided with a positioning plate opposite to the bottom surface of the cutter holder, a cutter holder positioning key is arranged at the position, corresponding to the cutter holder positioning groove, of the positioning plate, and the cutter holder positioning key is connected with the positioning plate through a fastening bolt.

Preferably, the sliding mechanism includes:

the slideway is arranged along the direction parallel to the axial direction of the driving motor;

the sliding tongue is in sliding fit with the sliding way;

the slideway is arranged on the lower support, and the sliding tongue is arranged on the upper support;

or the slide way is arranged on the upper support, and the sliding tongue is arranged on the lower support.

Preferably, the adjustment mechanism comprises:

the adjusting jackscrew seat is arranged on the lower support;

the adjusting jackscrew hole is arranged on the adjusting jackscrew seat;

the adjusting jackscrew is arranged in the adjusting jackscrew hole and is arranged along the direction parallel to the axial direction of the driving motor;

the wire drawing hole is formed in the upper support, and the end portion of the adjusting jackscrew abuts against the wire drawing hole.

Preferably, the locking mechanism comprises:

a plurality of through holes provided in a direction parallel to an axial direction of the driving motor;

a plurality of screw holes provided in a direction parallel to an axial direction of the driving motor;

the through hole is formed in the lower support, and the threaded hole is formed in the position, opposite to the through hole, of the upper support; or the threaded hole is arranged on the lower support, and the through hole is arranged on the upper support at a position opposite to the threaded hole;

and the bolts are matched with the threads of the threaded holes.

Compared with the prior art, the utility model, following beneficial effect has:

1. the utility model discloses a single-shaft crusher is provided with a driving motor mounting support, a lower support is detachably connected with a crushing box body, and the driving mode of an equipment main body can be conveniently changed; the upper support is arranged on the lower support through the matching of the sliding mechanism, the adjusting mechanism and the locking mechanism, the upper support can slide on the lower support along the axial direction of the driving motor to adjust the position and is locked at a proper position, when the axial distance of the driving motor relative to the equipment main body needs to be finely adjusted to adapt to couplers of different sizes and brands, the position of the driving motor needs to be coarsely adjusted to facilitate the motor maintenance, or the driving motor needs to be separated from a working main shaft, the adjustment can be carried out through the matching of the sliding mechanism, the adjusting mechanism and the locking mechanism, the mounting base does not need to be repeatedly detached, and the adjustment is convenient and rapid;

2. in the single-shaft crusher of the utility model, the driving motor adopts the permanent magnet synchronous motor, the common hydraulic driving torque is large, but the system efficiency is low, and the energy loss is large; the asynchronous motor and the speed reducer are driven to have small torque and unstable system in an ultra-low speed state, while the permanent magnet synchronous motor can give consideration to both efficiency and output torque, so that the driving efficiency is improved, and the energy is saved and the efficiency is high in the using process;

3. the utility model discloses a single-shaft crusher still sets up the torque limiter between driving motor and the sword arbor, and once transshipping, the transmission moment of torsion surpasss the setting value, and the torque limiter just can produce and break away from or skid to make driving motor's output shaft and move the sword arbor and separate, make driving motor avoid the damage that the overload arouses, play overload protection, equipment security is higher;

4. the single-shaft crusher is also provided with the frequency converter, the frequency of the driving motor can be selected according to the property of the material to be treated, and the rotating speed of the motor is controlled through the frequency converter, so that the single-shaft crusher is efficient and energy-saving; furthermore, a vector frequency converter is adopted, a speed sensor and the frequency converter are matched for closed-loop control, so that accurate speed vector control of the driving motor is realized, and the control can solve the problem of large torque output at low speed and even zero speed; meanwhile, the minimum inching frequency of the frequency converter can be as low as 0Hz, so that ultralow-speed stability can be realized, dynamic checking of the cutter clearance of the crusher is facilitated, and the problem of manual disc cutter can be solved;

5. the utility model discloses a single-shaft crusher still is equipped with the cooler, detects driving motor internal temperature and conveys temperature signal for the controller through temperature sensor, and the controller is exported for the cooler after judging temperature signal is higher than the threshold value, and the cooler starts, cools down the motor through the circulating water, can avoid the motor to lead to the damage because of overheated; after the temperature signal transmitted by the temperature sensor is lower than the threshold value, the controller outputs the temperature signal to the cooler, and the cooler stops running, so that the phenomenon that the temperature difference between the inside and the outside of the motor is too high, condensed water is generated inside the motor and the motor is damaged is avoided, and the running safety of equipment is higher;

6. the single-shaft crusher of the utility model is also provided with a maintenance window and a maintenance door body, and a position finder and a safety door switch are arranged between the maintenance window and the maintenance door body, the position finder can ensure that the maintenance door bodies on the left and the right of the maintenance window are closed in sequence, and prevent two doors from being clamped together when closed, thus ensuring the close tightness; the safety door switch can detect whether the access door body is closed or not, when the access door body is not closed, the safety door switch enables the control circuit to be disconnected, and the driving motor cannot be started, so that equipment can be prevented from being started when the access door body is not closed, and safety accidents are avoided;

7. the utility model discloses a single-shaft crusher, stationary knife rest bottom are equipped with a plurality of blade holder constant head tanks, and a plurality of blade holder constant head tanks set up along the axial, are equipped with the blade holder navigation key on the locating plate that sets up on the broken box, when changing the stationary knife rest, aim at the blade holder constant head tank of the stationary knife rest bottom of changing with the blade holder navigation key, can follow the position calibration of cutter axial with the stationary knife rest, the accurate positioning of reassembling when more conveniently realizing the cutter change blade rest.

Drawings

Fig. 1 is a schematic structural diagram of a single-shaft crusher according to an embodiment of the present invention;

fig. 2 is a rear view of a single-shaft crusher according to an embodiment of the present invention;

FIG. 3 is a top view of a single shaft crusher according to an embodiment of the present invention;

FIG. 4 is a side view of a single shaft crusher according to an embodiment of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3 at A;

fig. 6 is a schematic structural diagram of a fixed knife in a single-shaft crusher according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of a mounting support for a driving motor in a single-shaft crusher according to an embodiment of the present invention;

fig. 8 is a schematic structural view of an upper support of a mounting support of a driving motor in a single-shaft crusher according to an embodiment of the present invention;

fig. 9 is a schematic structural view of a lower support of a driving motor mounting support in a single-shaft crusher according to an embodiment of the present invention;

fig. 10 is a circuit diagram of a single-shaft crusher according to an embodiment of the present invention.

Wherein: 1-crushing a box body; 2-moving the knife; 3-fixing a cutter; 31-a fixed cutter seat; 32-a tool apron positioning groove; 33-a stationary knife body; 34-a positioning plate; 35-a tool apron positioning key; 4-driving the motor; 5, mounting a support for a driving motor; 51-upper support; 511-a backplane; 512-shaft connection plate; 513 — a first rib; 514-flange attachment holes; 52-lower support; 521-a crushing box connecting plate; 522-a top plate; 523-second rib; 524-main body connection hole; 53-a sliding mechanism; 531-a slide; 532-sliding tongue; 533-oil storage hole; 54-an adjustment mechanism; 541-adjusting a jackscrew seat; 542-adjusting the jackscrew hole; 55-a locking mechanism; 551-through hole; 552-a threaded hole; 6-a coupler; 7-a torque limiter; 8-a cooler; 9-cooling water inlet; 10-cooling water outlet; 11-maintenance window; 12-repairing the door body; 13-a cis-position device; 14-feed inlet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

As shown in fig. 1, fig. 7, fig. 8, and fig. 9, the single-shaft crusher according to this embodiment includes a crushing box 1, a feeding port 14 disposed at the top of the crushing box 1, a moving blade 2 and a stationary blade 3 disposed in the crushing box 1, and a driving motor 4 connected to a blade shaft of the moving blade 2, and further includes a driving motor mounting support 5, where the driving motor mounting support 5 includes: an upper support 51, a lower support 52, a sliding mechanism 53, an adjusting mechanism 54 and a locking mechanism 55, wherein the upper support 51 is adapted to detachably mount the driving motor 5; the lower support 52 is detachably connected with the crushing box body 1; the sliding mechanism 53 is arranged between the upper support 51 and the lower support 52, and is adapted to enable the upper support 51 to be arranged on the lower support 52 in a sliding manner along the axial direction of the driving motor 4; the adjustment mechanism 54 is adapted to adjust the position of the upper support 51 on the lower support 52; a locking mechanism 55 is provided between the upper holder 51 and the lower holder 52, adapted to lock the position of the upper holder 51 on the lower holder 52. The single-shaft crusher is provided with a driving motor mounting support, a lower support is detachably connected with the crushing box body 1, and the driving mode of an equipment main body can be conveniently replaced; through slide mechanism, adjustment mechanism, locking mechanical system's cooperation sets up the upper bracket on the undersetting, and the upper bracket can be on the undersetting along driving motor's axis direction slide adjusting position, and lock in suitable position department, need the axial spacing of fine tuning driving motor for the equipment main part in order to adapt to not unidimensional, during the shaft coupling of brand, when need roughly to adjust driving motor position in order to make things convenient for the motor to overhaul, or when need throw off driving motor and working spindle, accessible slide mechanism, adjustment mechanism, locking mechanical system's cooperation is adjusted, need not to pull down the mount pad repeatedly, it is convenient to adjust, swiftly.

Specifically, as shown in fig. 8 and 9, the slide mechanism 53 includes: a slide 531 provided in a direction parallel to the axial direction of the drive motor; a tongue 532 slidably engaged with the slide 531; the slide track 531 is arranged on the lower support 52, and the slide tongue 532 is arranged on the upper support 51; alternatively, the slide 531 may be provided on the upper support 51 and the tongue 532 may be provided on the lower support 52. In this embodiment, the slide track 531 is disposed on the lower support 52 in a direction parallel to the axial direction of the driving motor, and the slide tongue 532 is disposed on the upper support 51 opposite to the slide track 531. Further, the sliding mechanisms 53 may be provided as one set, or may be provided as two or more sets, and in consideration of the stability of the movement of the upper support with respect to the lower support, the preferred embodiment is that the sliding mechanisms 53 are provided as two sets, and the two sets of the slideways and the tongues are symmetrically provided with respect to the longitudinal plane (i.e., vertical plane) on which the shaft of the driving motor is located. In a preferred embodiment, the sliding tongue 532 is further provided with an oil storage hole 533. The oil storage hole 533 is filled with lubricating grease, and the lubricating grease can be applied to the slide way when the sliding tongue moves relative to the slide way, so that the lubrication in the slide way is maintained conveniently, and the friction force when the upper support moves is reduced.

Specifically, as shown in fig. 8 and 9, the adjustment mechanism 54 includes: the adjusting top thread seat 541 is arranged on the lower support 52; an adjusting jackscrew hole 542 arranged on the adjusting jackscrew seat 541; the adjusting jackscrew is arranged in the adjusting jackscrew hole 542 and arranged in a direction parallel to the axial direction of the driving motor; and the wire drawing hole is formed in the upper support 51, and the end part of the adjusting jackscrew is abutted to the wire drawing hole. The adjusting jackscrew is rotated to drive the upper support to move along the axial direction parallel to the driving motor under the action of the adjusting jackscrew on the wire drawing hole. Specifically, the adjusting jackscrew can be a short bolt, the short bolt can be rotated to realize the axial fine adjustment of the driving motor, the width of the gap between the driving motor and the equipment main body is adjusted to adapt to the installation of different couplers, and the adjusting jackscrew can also be a long bolt, the long bolt can be rotated to realize the axial coarse adjustment of the driving motor, so that the separation of the driving motor and the main shaft is completed. The setting of adjusting the jackscrew can finely tune or roughly tune the position of driving motor, and need not to use hoisting tool in the adjustment process. Further, the adjusting mechanism 54 may be provided as one set, or may be provided as two or more sets, and in consideration of the stability of the adjustment of the upper support with respect to the lower support, the preferred embodiment is that the adjusting mechanism 54 is provided as two sets, and the two adjusting jackscrew seats are respectively provided on both sides of the lower support symmetrically with respect to the longitudinal plane on which the shaft of the driving motor is located.

Specifically, as shown in fig. 8 and 9, the lock mechanism 55 includes: a plurality of through holes 551 provided in a direction parallel to the axial direction of the driving motor; a plurality of screw holes 552 provided in a direction parallel to the axial direction of the driving motor; the through hole 551 is arranged on the lower support 52, and the threaded hole 552 is arranged on the upper support 51 at a position opposite to the through hole 551; the screw hole 552 may be provided on the lower support 52, and the through hole 551 is provided on the upper support 51 at a position opposite to the screw hole 552; a plurality of bolts that mate with the threads of the threaded holes 552. Bolts are screwed with the threaded holes through the through holes, and the positions of the upper support 51 and the lower support 52 are locked through the locking of the bolts with the threaded holes 552. Preferably, the through hole 551 is an oblong hole to facilitate fine adjustment of the upper support 51 relative to the lower support 52. Further, the locking mechanisms 55 may be set as one group, or may be set as two or more groups, and in consideration of the stability of the upper support locking with respect to the lower support, the preferred embodiment is that the locking mechanisms 55 are set as two groups, two rows of threaded holes are provided on two sides of the bottom of the upper support, two rows of through holes are provided on two sides of the top of the lower support at corresponding positions, and the two rows of threaded holes are symmetrical with respect to the longitudinal plane where the shaft of the driving motor is located.

Specifically, as shown in fig. 8, the structure of the upper support 51 may be selected as needed, and may be selected as a B3 connection mode connected to the drive motor base and configured as a drive motor base connection plate, or may be selected as a B5 connection mode connected to the end cover flange of the drive motor and configured as a drive motor flange connection plate, or may be selected as a B35 fixing mode. In order to improve the connection stability of the driving motor, as a preferred embodiment, the upper bracket 51 includes: the bottom plate 511 is suitable for being connected with a base of the driving motor, and a driving motor mounting hole is formed in the bottom plate 511; a shaft connecting plate 512 vertically disposed on the bottom plate 511 and adapted to be connected to a flange of the driving motor, the shaft connecting plate 512 being provided with a flange connecting hole 514; the first rib 513 is connected between the bottom plate 511 and the shaft connecting plate 512. The detachable connection of the driving motor and the mounting support can be realized through the matching of the fixing bolt and the mounting hole of the driving motor on the bottom plate 511; the end cover flange of the driving motor is detachably connected with the mounting support through the matching of the fixing bolt and the flange connecting hole 514 on the shaft connecting plate 512, so that the driving motor with different power can be conveniently replaced according to the requirement; the first ribs 513 may further improve the connection strength between the base plate 511 and the shaft connection plate 512, and preferably, two first ribs 513 are provided on both sides of the base plate 511.

Specifically, as shown in fig. 9, the lower holder 52 includes: the crushing box body connecting plate 521 is suitable for being connected with the crushing box body 1, and a main body connecting hole 524 is formed in the crushing box body connecting plate 521; a top plate 522 vertically disposed on the crushing box connecting plate 521; and a second rib 523 connected between the crushing box connecting plate 521 and the top plate 522. The crushing box body can be detachably connected with the mounting support through the matching of the fixing bolt and the main body connecting hole 524 on the crushing box body connecting plate 521, so that the mounting support on the crushing box body is convenient to replace; the second ribs 523 are provided to further improve the connection strength between the top plate 522 and the crushing box connecting plate 521, and preferably, two second ribs 523 are provided at both sides of the top plate 522.

Further, in the single-shaft crusher of the embodiment, the driving motor is a permanent magnet synchronous motor. The common crusher is driven by adopting an asynchronous motor and a speed reducer or hydraulically driven, but in the operation process, the hydraulic driving torque is large, but the system efficiency is low, the energy consumption is large, the torque is small when the asynchronous motor and the speed reducer are driven in an ultra-low speed state, and the system is unstable. The permanent magnet synchronous motor is a synchronous motor which generates a synchronous rotating magnetic field through permanent magnet excitation, the permanent magnet is used as a rotor to generate the rotating magnetic field, the three-phase stator winding is subjected to armature reaction under the action of the rotating magnetic field to induce three-phase symmetrical current, the kinetic energy of the rotor is converted into electric energy at the moment, the permanent magnet synchronous motor is used as a driving motor, the efficiency and the output torque can be considered, the driving efficiency is improved, and the energy-saving and high-efficiency use process is realized. Further, this single-shaft crusher uses two PMSM to drive, and two PMSM locate respectively and move the both ends synchro-driven of sword arbor, and equipment operating stability is higher.

Further, as shown in fig. 1, 2, and 3, the single-shaft crusher of the present embodiment further includes a coupling 6 and a torque limiter 7, an output shaft of the driving motor 4 is connected to a driving end of the torque limiter 7 through the coupling 6, and a driven end of the torque limiter 7 is connected to a knife shaft of the movable knife 2. The torque limiter is also called a safety clutch, is a mechanical power overload protection device, is usually installed between a driving side and a load side of power transmission, and once overload occurs and the transmitted torque exceeds a set value, the torque limiter can be separated or slipped, so that an output shaft of a driving motor is separated from a movable cutter shaft, and the driving motor is prevented from being damaged due to overload.

Further, the single-shaft crusher of the present embodiment further includes: the speed sensor is arranged on the cutter shaft of the movable cutter 2; the frequency converter is electrically connected with the driving motor 4 and the speed sensor respectively; the controller is electrically connected with the frequency converter; the controller controls the rotating speed of the driving motor through the frequency converter. The rotating speed of the driving motor can be selected according to the properties of the materials to be treated, the centralized crushing working condition of the harder materials is set, the medium-speed operation is set, and the abrasion and impact of tool setting are reduced; the soft material centralized crushing working condition is set to be high-speed running, so that the chopping effect is improved; the working condition of the uncrushable material adopts positive and negative rotation control and overload reverse rotation. Furthermore, the frequency converter can adopt a vector frequency converter, the frequency converter is controlled by the controller after the rotating speed is selected according to the materials, the frequency converter changes the output frequency and is matched with a signal fed back by the speed inductor to realize the speed vector control of the adjusting driving motor, and the control can solve the problem of large torque output at low speed and even zero speed; meanwhile, the inching frequency of the frequency converter can be set to be as low as 0Hz, so that the ultralow-speed stability can be realized, the dynamic checking of the cutter clearance of the crusher is facilitated, and the problem of manual disc cutters can be solved. Meanwhile, based on the characteristic of closed-loop control, the motor can stably run at the ultralow frequency required by the cutter coiling mode, and can process the initial inspection after the cutter changing is finished. The speed vector control of the frequency converter belongs to the prior art, and is not described herein. Wherein, the controller can be Siemens PLC S7-1200, and the frequency converter can be SINAMICS G120 series frequency converter. The frequency converter is communicated with the PLC through the Profinet, so that all parameters of the frequency converter can be known in real time, and all parameter data in fault can be recorded in real time.

Further, as shown in fig. 1 and 10, the driving motor 4 is a water-cooled motor, and the single-shaft crusher further includes: a water supply port of the cooler is connected with a cooling water inlet 9 of the water-cooled motor, and a water return port of the cooler is connected with a cooling water outlet 10 of the water-cooled motor; the temperature sensor is arranged in the inner cavity of the water-cooling motor; the controller is respectively and electrically connected with the cooler and the temperature sensor, and the controller controls the cooler to start and stop according to a temperature signal detected by the temperature sensor. The temperature sensor detects the internal temperature of the driving motor and transmits a temperature signal to the controller, the controller judges that the temperature signal is higher than a threshold value and then outputs the temperature signal to the cooler, the cooler is started, and the motor is cooled by circulating water, so that the damage of the motor caused by overheating can be avoided; after the temperature signal transmitted by the temperature sensor is lower than the threshold value, the controller outputs the temperature signal to the cooler, the cooler stops running, and the phenomenon that the temperature difference between the inside and the outside of the motor is too high, condensed water is generated inside the motor, and the motor is damaged is avoided. The temperature sensor can be an ohm dragon E52-CA20A thermocouple.

Further, as shown in fig. 1, fig. 2, fig. 3, and fig. 10, the single-shaft crusher according to the present embodiment further includes: the maintenance window 11, the maintenance door body 12, the cis-position device 13 and the safety door switch are arranged on the side wall of the crushing box body 1 and used as an operation window when the crusher is maintained; the access door bodies 12 are symmetrically arranged at the left side and the right side of the access window 11 and are hinged with the access window 11; the cis 13 is mounted between the access window 11 and the access door 12. The sequential device can ensure that the left and right maintenance door bodies of the maintenance window are closed in sequence, prevent the two doors from being clamped together when being closed and ensure the close tightness. The safety door switch is arranged on the maintenance door body 12 and is electrically connected with the controller, when the safety door switch detects that the maintenance door body is closed, the control circuit is communicated, and when the safety door switch detects that the maintenance door body is opened, the control circuit is cut off, and the driving motor cannot be started. The motor can be prevented from being started when the access door body is not closed, and safety accidents are avoided. The safety door switch belongs to the prior art, and can specifically adopt a Shansen numerical control safety door switch SS/E-01.

Further, as shown in fig. 4, 5, and 6, the stationary blade 3 includes: a fixed knife seat 31 installed on the crushing box body 1; a stationary blade body 33 mounted on the stationary blade holder 31; a plurality of tool holder positioning grooves 32 provided on the bottom surface of the tool holder 31; the plurality of tool apron positioning grooves 32 are arranged in a direction parallel to the cutter shaft of the movable cutter; a positioning plate 34 is arranged on the crushing box body 1 opposite to the bottom surface of the fixed cutter seat 31, a cutter seat positioning key 35 is arranged on the positioning plate 34 corresponding to the cutter seat positioning groove 32, and the cutter seat positioning key 35 is connected with the positioning plate 34 through a fastening bolt. When the fixed cutter seat is replaced and a new fixed cutter seat is installed, a plurality of positioning keys arranged along the axial direction are aligned with the positioning grooves, and the accurate positioning of tool replacement and tool seat reassembly is more conveniently realized.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.

Claims

1. The utility model provides a single-shaft crusher, includes broken box, locates move sword and stationary knife in the broken box, with move the driving motor that the arbor of sword is connected, its characterized in that still includes driving motor erection support, driving motor erection support includes:

the upper support is suitable for detachably mounting the driving motor;

the lower support is detachably connected with the crushing box body;

2. The single-shaft crusher as claimed in claim 1, wherein:

the driving motor is a permanent magnet synchronous motor.

3. The single-shaft crusher according to claim 1 or 2, characterized in that:

the automatic cutter is characterized by further comprising a coupler and a torque limiter, wherein an output shaft of the driving motor is connected with a driving end of the torque limiter through the coupler, and a driven end of the torque limiter is connected with a cutter shaft of the movable cutter.

4. The single-shaft crusher according to claim 1 or 2, further comprising:

the speed inductor is arranged on the cutter shaft of the movable cutter;

5. The single-shaft crusher as claimed in claim 4, wherein the drive motor is a water-cooled motor, the single-shaft crusher further comprising:

6. The single-shaft crusher as claimed in claim 4, further comprising:

the maintenance window is arranged on the side wall of the crushing box body;

7. The single-shaft crusher according to claim 1 or 2,

the stationary knife comprises:

the fixed cutter seat is arranged on the crushing box body;

the fixed cutter body is arranged on the fixed cutter seat;

8. The single-shaft crusher according to claim 1 or 2, wherein the sliding mechanism comprises:

the sliding tongue is in sliding fit with the sliding way;

9. The single-shaft crusher according to claim 1 or 2, wherein the adjusting mechanism comprises:

the adjusting jackscrew seat is arranged on the lower support;

the adjusting jackscrew hole is arranged on the adjusting jackscrew seat;

10. The single-shaft crusher according to claim 1 or 2, wherein the locking mechanism comprises:

and the bolts are matched with the threads of the threaded holes.