CN211283376U

CN211283376U - Traction machine with long-distance double-groove steel belt wheel

Info

Publication number: CN211283376U
Application number: CN201921901235.2U
Authority: CN
Inventors: 王友富
Original assignee: Montanari Drive Technology Zhejiang Co ltd
Current assignee: Montanari Drive Technology Zhejiang Co ltd
Priority date: 2019-11-06
Filing date: 2019-11-06
Publication date: 2020-08-18
Anticipated expiration: 2029-11-06

Abstract

The utility model provides a traction machine with long-distance double-groove steel belt pulley, which comprises a frame, wherein the rear end of the frame is fixedly connected with a permanent magnet motor, the front end of the frame is fixedly connected with a brake component, the brake component is provided with an encoder, a traction wheel is arranged in the frame, the two ends of the frame are provided with openings, the opening at the front end of the frame is provided with a front bearing, the front end of the traction wheel is rotatably connected with the frame through the front bearing, and the front end of the traction wheel is matched with the encoder; a rear bearing is arranged at an opening at the rear end of the base, the rear end of the traction wheel is rotatably connected with the frame through the rear bearing, the rear end of the traction wheel is arranged in the permanent magnet motor, a rotor assembly is sleeved at the rear end of the traction wheel, and a stator winding matched with the rotor assembly is arranged in the permanent magnet motor; the permanent-magnet machine upper end is equipped with the terminal box, and terminal box and permanent-magnet machine's relative position is equipped with the through-hole, the utility model has the advantages of operate steadily, the torque is great, simple structure, the technology is simplified, more can adapt to user's needs.

Description

Traction machine with long-distance double-groove steel belt wheel

Technical Field

The utility model relates to an elevator hauler field, concretely relates to hauler with long interval double flute steel band pulley.

Background

With the continuous development of modern society, high-rise buildings are visible everywhere, and in the high-rise buildings, an elevator is an indispensable important component, and the normal use of the elevator is not separated from a traction machine. The hoisting machine is the driving element of the elevator running up and down.

When the elevator traction machine operates, the front bearing and the rear bearing are used as supports to ensure that the motor rotates stably, meanwhile, on the permanent magnet synchronous traction machine driven by the motor, besides two bearings are needed for the rotation of the motor, the traction sheave of the stress surface of the traction machine is also a rotating part, the bearings are needed to be installed, the structure of three bearings brings great inconvenience to attack assembly, the requirement on processing precision is high, the stress change in operation is caused by different friction forces of tracks due to the fact that the three bearings are not concentric in debugging and use, the change causes the deformation of the steel wire rope in the elastic area to be transmitted to the traction machine, so that the traction machine with the cantilever stressed generates resonance to shake the elevator in motion, and the bearing is easy to damage due to long-term shaking, potential safety hazards are easy to cause, the installation process between the existing motor assembly and the traction sheave is complex, and the assembly, disassembly and maintenance are very inconvenient.

Disclosure of Invention

The to-be-solved problem of the utility model is to provide a tractor of long interval double flute steel band pulley that operates steadily, the torque is great, simple structure, technology is simplified.

In order to solve the technical problem, the utility model discloses a technical scheme is: a traction machine with a long-space double-groove steel belt pulley comprises a machine base, wherein a permanent magnet motor is fixedly connected to the rear end of the machine base, a brake assembly is fixedly connected to the front end of the machine base, the brake assembly is provided with an encoder, a traction wheel is arranged in the machine base, openings are formed in two ends of the machine base, a front bearing is arranged at the opening of the front end of the machine base, the front end of the traction wheel is rotatably connected with the machine base through the front bearing, and the front end of the traction wheel is matched with the encoder;

a rear bearing is arranged at an opening at the rear end of the base, the rear end of the traction wheel is rotatably connected with the frame through the rear bearing, the rear end of the traction wheel is arranged in the permanent magnet motor, a rotor assembly is sleeved at the rear end of the traction wheel, and a stator winding matched with the rotor assembly is arranged in the permanent magnet motor;

the upper end of the permanent magnet motor is provided with a junction box, and a through hole is formed in the position, opposite to the permanent magnet motor, of the junction box.

Further, the traction sheave comprises a front section, a middle section and a rear section, the middle section is fixedly connected with the front section and the rear section,

steel belt wheels are fixedly sleeved at two ends of the middle section, and a space avoidance section is arranged between the two steel belt wheels;

the rear section comprises a bearing section and a rotor section, and the diameter of the bearing section is larger than that of the rotor section.

Further, the rotor subassembly includes the bottom plate, rotor and roof, bottom plate, rotor and roof all cup joint with the rotor section, the bottom plate with the bearing section offsets, the roof with the rotor section joint, the rotor with roof bolted connection.

Further, a groove body is arranged on the inner side of the steel belt wheel, and the bottom surface of the groove body is arched.

Furthermore, an anti-abrasion pad is arranged at the center of the groove body.

Furthermore, the upper side of the rack is provided with symmetrical hanging rings, and the lower side of the rack is provided with symmetrical pull rods and supporting legs.

Furthermore, a front bearing cover plate is arranged at the outer end of the front bearing, and a first rear bearing cover plate and a second rear bearing cover plate are respectively arranged at two ends of the rear bearing.

Furthermore, the permanent magnet motor comprises a casing and an outer end cover, the casing is connected with the outer end cover through bolts, the casing and the outer end cover are provided with matched spigots, and the stator winding is clamped with the casing and the outer end cover through the spigots.

Furthermore, the base is made of cast iron, and the shell and the outer end cover are made of aluminum alloy.

Further, the junction box comprises a box body and a cover body, the box body is connected with the cover body through bolts, a wire outlet hole and a wire outlet bolt are formed in the side wall of the box body, and a wiring seat is fixedly connected in the box body.

Compared with the prior art, the utility model has the advantages and positive effect be:

1. the utility model provides a pair of hauler with long interval double flute steel band pulley, through traction sheave, front bearing, rear bearing, permanent-magnet machine's setting, move the focus of hauler to the middle section of traction sheave, and rotor subassembly, first bearing, second bearing and traction sheave are concentric coaxial, can eliminate the potential safety hazard that the bearing decentraction caused, also can prevent effectively that the hauler of cantilever atress from producing resonance and making the elevator move in shake, the utility model has the advantages of the operation is stable, operational environment adaptability is stronger, and is safe in utilization, more adapts to user's needs.

2. The utility model provides a pair of hauler with long interval double flute steel band pulley, through the setting of bottom plate, rotor, roof, outer end cover, tang, can be comparatively convenient install the dismantlement maintenance to the device, during the installation, only need put into the corresponding position of device in proper order with each part in the device, then through the bolt with roof and outer end cover fixed can, during the dismantlement, also only need lift off outer end cover and roof and can permanent-magnet machine's whole parts take out, the utility model has the advantages of be convenient for maintain, convenient to use, the cost is lower, operational environment adaptability is stronger, safe in utilization, high-efficient convenient, more adapt to user's needs.

3. The utility model provides a pair of hauler with long interval double flute steel band pulley, through steel band pulley, cell body, abrasionproof pad and keep away the setting of vacancy section, the position department atress that makes the steel band when the steel band pulley operation abrasionproof pad is the biggest, and the side of having avoided elevator operation steel band and traction sheave produces the friction, and longer vacancy section of keeping away can avoid interfering and be favorable to elevator car's balance with elevator guide rail, the utility model has the advantages of be convenient for maintain, the operation is stable, convenient to use, the cost is lower, operational environment adaptability is stronger, safe in utilization, high-efficient convenient, more adapt to user's needs.

4. The utility model provides a pair of hauler with long interval double flute steel band pulley can adopt when the installation about double bracing atress, can adopt rings and pull rod to fix the device simultaneously, makes the device atress reasonable have better stability to increased the stability in the elevator operation, had better radiating effect, can prevent that the heat is concentrated and cause the damage to the rotor in the electromagnetic machine, thereby prolonged the life of device, more adapted user's needs.

Drawings

FIG. 1 is a block diagram of the present invention;

fig. 2 is a front sectional view of the present invention;

fig. 3 is a bottom view of the present invention;

fig. 4 is a side view of the present invention;

FIG. 5 is an enlarged view of the point A of the present invention;

FIG. 6 is an enlarged view of the utility model at B;

fig. 7 is a structural diagram of the permanent magnet motor of the present invention;

fig. 8 is a structural view of the traction sheave of the present invention.

In the figure: a frame-1, a permanent magnet motor-2, a brake component-3, an encoder-4, a traction sheave-5, a front bearing-6, a rear bearing-7, a rotor component-8, a stator winding-9, a junction box-10, a through hole-11, a front section-12, a middle section-13, a rear section-14, a steel belt wheel-15, a bearing section-16, a rotor section-17, a bottom plate-18, a rotor-19, a top plate-20, a groove body-21, an anti-abrasion pad-22, a lifting ring-23, a pull rod 24, a supporting leg-25, a front bearing cover plate-26, a first rear bearing cover plate-27, a casing-28, an outer end cover-29, a box body-30, a cover body-31, an outlet hole-32, an outlet bolt-33, an outlet, A wire holder-34, a clearance section-35, a second rear bearing cover plate-36 and a spigot-37.

Detailed Description

For a better understanding of the present invention, the following further description is given in conjunction with the following embodiments and accompanying drawings.

As shown in fig. 1-8, a traction machine with a long-space double-groove steel belt wheel comprises a frame 1, a permanent magnet motor 2 is fixedly connected with the rear end of the frame 1, a brake component 3 is fixedly connected with the front end of the frame 1, the brake component is provided with an encoder 4, the brake component 3 and the encoder 4 adopt the existing device, the brake component 3 is a device with the functions of decelerating, stopping or keeping the stop state of a moving part (or a moving machine) and is a mechanical part for stopping or decelerating the moving part in the machine, the encoder 4 can compile signals or data and convert the signals into a device with a signal form which can be used for communication, transmission and storage, a traction wheel 5 is arranged in the frame 1, openings are arranged at the two ends of the frame 1, a front bearing 6 is arranged at the opening at the front end of the frame 1, a front bearing cover plate 26 is arranged at the outer end of the front bearing 6, the front end of the traction wheel, the front end of the traction sheave 5 is matched with the encoder 4;

a rear bearing 7 is arranged at an opening at the rear end of the rack 1, a first rear bearing cover plate 27 and a second rear bearing cover plate 36 are respectively arranged at two ends of the rear bearing 7, the rear end of the traction sheave 5 is rotatably connected with the rack 1 through the rear bearing 7, the rear end of the traction sheave 5 is arranged in the permanent magnet motor 2, the permanent magnet motor 2 can drive the traction sheave 5 to rotate in the rack 1, a rotor assembly 8 is sleeved at the rear end of the traction sheave 5, and a stator winding 9 matched with the rotor assembly 8 is arranged in the permanent magnet motor 2;

the junction box 10 is arranged at the upper end of the permanent magnet motor 2, the junction box 10 comprises a box body 30 and a cover body 31, the box body 30 is in bolted connection with the cover body 31, a wire outlet hole 32 and a wire outlet bolt 33 are arranged on the side wall of the box body 30, a wire holder 34 is fixedly connected in the box body 30, a through hole 11 is arranged at the relative position of the junction box 10 and the permanent magnet motor 2, when the elevator is in a static state, no current passes through the permanent magnet motor 2 and the brake assembly 3, and at the moment, because attraction force does not exist between electromagnetic cores, a brake shoe in the brake assembly 3 holds a brake wheel tightly under the action of brake spring pressure, and the; when the permanent magnet motor 2 is electrified and rotated, the brake component 3 is electrified and attracted at the same time, the electromagnetic iron core is quickly magnetized and attracted, so that the brake shoe is opened and completely separated from the brake wheel, and the elevator can run; when the elevator car reaches a required stop, the permanent magnet motor 2 loses power, the coil in the brake electromagnet loses power at the same time, the magnetic force in the electromagnetic iron core disappears rapidly, the iron core is reset through the brake arm under the action of the brake spring, the brake wheel is embraced by the brake shoe again, and the elevator stops working.

The traction sheave 5 comprises a front section 12, a middle section 13 and a rear section 14, the middle section 13 is fixedly connected with the front section 12 and the rear section 14, steel belt pulleys 15 are fixedly sleeved at two ends of the middle section 13, a clearance section 35 is arranged between the two steel belt pulleys 15, and the longer clearance section 35 can avoid interference with an elevator guide rail and is beneficial to balance of an elevator car;

the rear section 14 comprises a bearing section 16 and a rotor section 17, the diameter of the bearing section 16 being larger than the diameter of the rotor section 17.

Rotor subassembly 8 includes bottom plate 18, rotor 19 and roof 20, bottom plate 18, rotor 19 and roof 20 all cup joint with rotor section 17, bottom plate 18 offsets with bearing section 16, roof 20 and rotor section 17 joint, rotor 19 is the permanent magnet, rotor 19 and roof 20 bolted connection, can fix roof 20 and rotor 19 on rotor section 17 through the bolt, be convenient for installation and dismantlement, when rotor subassembly 8 installs, can overlap bottom plate 18, rotor 19 and roof 20 on rotor section 17 in proper order, with the terminal joint of roof 20 and rotor section 17, then it is fixed with roof 20 and rotor 19 through the bolt, make rotor subassembly 8 more compact, bearing section 16 can play the locate effect for the rotor subassembly, can prevent that rotor subassembly 8 from shifting in the rotation not hard up.

The inboard cell body 21 that is equipped with of steel band wheel 15, the cell body 21 bottom surface is the arch, cell body 21 center department is equipped with the abrasionproof pad 22, the setting of cell body 21 and abrasionproof pad 22, the position department atress that makes the steel band abrasionproof pad 22 when steel band wheel 15 operates is the biggest, the abrasionproof pad 22 can set up to the smooth pad body that can reduce frictional force, and the corner of abrasionproof pad 22 all sets up to the fillet, the side of steel band and traction wheel 5 produces the friction when having avoided the elevator operation.

The upper side of the frame 1 is provided with symmetrical lifting rings 23, the lower side of the frame 1 is provided with symmetrical pull rods 24 and supporting legs 25, the lifting rings 23, the pull rods 24 and the supporting legs 25 are arranged, left and right double-support stress can be adopted during installation, the lifting rings 23 and the pull rods 24 can be adopted to fix the device simultaneously, the stress of the device is reasonable, and better stability is achieved, so that the stability of the elevator in operation is improved.

The permanent magnet motor 2 comprises a machine shell 28 and an outer end cover 29, the machine shell 28 is connected with the outer end cover 29 through a bolt, the machine shell 28 and the outer end cover 29 are provided with matched seam allowances 37, a stator winding 9 is clamped with the machine shell 28 and the outer end cover 29 through the seam allowances 37, when the stator winding 9 is installed, the stator winding 9 corresponds to the seam allowances 37, then the stator winding 9 is placed in the seam allowances 37, then the outer end cover 29 is fixed with the machine shell 28 through the bolt compactly, and when the stator winding 9 is disassembled, the outer end cover 29 is only needed to be disassembled, and then the stator winding.

The material of frame 1 is cast iron, and the material of casing 28 and outer end cover 29 is the aluminum alloy, and the aluminum alloy has better radiating effect, can prevent that the heat in the electromagnetic machine 2 from concentrating and causing the damage to rotor 19 to the life of device has been prolonged.

The working process of the utility model is as follows:

when the permanent magnet motor 2 is installed, the bottom plate 18, the rotor 19 and the top plate 20 are sequentially sleeved on the rotor section 17, the top plate 20 is clamped with the tail end of the rotor section 17, then the top plate 20 and the rotor 19 are fixed through bolts, the rotor assembly 8 is more compact, then the stator winding 9 corresponds to the seam allowance 37, then the stator winding 9 is placed in the seam allowance 37, then the outer end cover 29 is fixed with the machine shell 28 through the bolts to be compact, and when the permanent magnet motor 2 is disassembled, all parts of the permanent magnet motor 2 can be taken out only by dismounting the outer end cover 29 and the top plate 20.

When the elevator is in a static state, no current passes through the permanent magnet motor 2 and the brake assembly 3, and the brake wheel is tightly held under the action of the pressure of the brake spring by the brake shoe in the brake assembly 3 due to the fact that attraction force does not exist between the electromagnetic iron cores, so that the permanent magnet motor 2 is ensured not to rotate;

when the permanent magnet motor 2 is electrified and rotated, excitation current is introduced into the stator winding 9, voltage drop is generated on the resistance of the stator winding 9 by the current, and the rotating armature magnetomotive force generated by the current and the established armature magnetic field cut the stator winding 9 and generate induced electromotive force in the stator winding 9 on the one hand, and the rotor assembly 8 is dragged to rotate at a synchronous rotating speed by the electromagnetic force on the other hand, so that the dragging wheel 5 is driven to rotate in the frame 1, the current is introduced into the brake assembly 3 at the same time, the electromagnetic core is quickly magnetized and attracted, the brake shoe is opened and completely separated from the brake wheel, and the elevator can run;

when the elevator car reaches a required stop, the stator winding 9 is gradually de-energized to cause the armature magnetic field generated by current to change, so that the motion state of the rotor assembly 8 is changed, the coil in the braking electromagnet is also de-energized simultaneously, the magnetic force in the electromagnetic iron core disappears rapidly, the iron core is reset through the braking arm under the action of the braking spring, the braking shoe holds the braking wheel again, and the elevator stops working.

The embodiments of the present invention have been described in detail, but the description is only for the preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made within the scope of the present invention should be covered by the present patent.

Claims

1. The utility model provides a hauler with long-distance double flute steel band pulley, includes frame (1), frame (1) rear end fixedly connected with permanent-magnet machine (2), frame (1) front end fixedly connected with brake subassembly (3), brake subassembly (3) are equipped with encoder (4), be equipped with in frame (1) and tow sheave (5), its characterized in that: openings are formed in two ends of the rack (1), a front bearing (6) is arranged at the opening at the front end of the rack (1), the front end of the traction wheel (5) is rotatably connected with the rack (1) through the front bearing (6), and the front end of the traction wheel (5) is matched with the encoder (4);

a rear bearing (7) is arranged at an opening at the rear end of the rack (1), the rear end of the traction sheave (5) is rotatably connected with the rack (1) through the rear bearing (7), the rear end of the traction sheave (5) is arranged in the permanent magnet motor (2), a rotor assembly (8) is sleeved at the rear end of the traction sheave (5), and a stator winding (9) matched with the rotor assembly (8) is arranged in the permanent magnet motor (2);

the permanent magnet motor is characterized in that a junction box (10) is arranged at the upper end of the permanent magnet motor (2), and a through hole (11) is formed in the relative position of the junction box (10) and the permanent magnet motor (2).

2. The traction machine with the long-distance double-groove steel pulley as claimed in claim 1, is characterized in that: the traction sheave (5) comprises a front section (12), a middle section (13) and a rear section (14), the middle section (13) is fixedly connected with the front section (12) and the rear section (14),

steel belt wheels (15) are fixedly sleeved at two ends of the middle section (13), and a space avoidance section (35) is arranged between the two steel belt wheels (15);

the rear section (14) comprises a bearing section (16) and a rotor section (17), the diameter of the bearing section (16) being larger than the diameter of the rotor section (17).

3. The traction machine with the long-distance double-groove steel pulley as claimed in claim 2, wherein: rotor subassembly (8) include bottom plate (18), rotor (19) and roof (20), bottom plate (18), rotor (19) and roof (20) all cup joint with rotor section (17), bottom plate (18) with bearing section (16) offset, roof (20) with rotor section (17) joint, rotor (19) with roof (20) bolted connection.

4. The traction machine with the long-distance double-groove steel pulley as claimed in claim 2, wherein: a groove body (21) is arranged on the inner side of the steel belt wheel (15), and the bottom surface of the groove body (21) is arched.

5. The traction machine with the long-distance double-groove steel pulley as claimed in claim 4, wherein: an anti-abrasion pad (22) is arranged at the center of the groove body (21).

6. The traction machine with the long-distance double-groove steel pulley as claimed in claim 1, is characterized in that: the upper side of the rack (1) is provided with symmetrical hoisting rings (23), and the lower side of the rack (1) is provided with symmetrical pull rods (24) and supporting legs (25).

7. The traction machine with the long-distance double-groove steel pulley as claimed in claim 1, is characterized in that: the outer end of the front bearing (6) is provided with a front bearing cover plate (26), and two ends of the rear bearing (7) are respectively provided with a first rear bearing cover plate (27) and a second rear bearing cover plate (36).

8. The traction machine with the long-distance double-groove steel pulley as claimed in claim 1, is characterized in that: permanent-magnet machine (2) are including casing (28) and outer end cover (29), casing (28) and outer end cover (29) bolted connection, casing (28) and outer end cover (29) are equipped with tang (37) of looks adaptation, stator winding (9) pass through tang (37) with casing (28) and outer end cover (29) joint.

9. The traction machine with the long-distance double-groove steel pulley as claimed in claim 8, wherein: the frame (1) is made of cast iron, and the shell (28) and the outer end cover (29) are made of aluminum alloy.

10. The traction machine with the long-distance double-groove steel pulley as claimed in claim 1, is characterized in that: junction box (10) include box body (30) and lid (31), box body (30) and lid (31) bolted connection, box body (30) lateral wall is equipped with wire hole (32) and outlet bolt (33), fixedly connected with connection terminal (34) in box body (30).