CN218024843U

CN218024843U - Forced elevator steel wire rope spacing constant device

Info

Publication number: CN218024843U
Application number: CN202222002862.0U
Authority: CN
Inventors: 张凡
Original assignee: Fujian Kuaike Urban Construction Additional Elevator Co ltd
Current assignee: Fujian Kuaike Urban Construction Additional Elevator Co ltd
Priority date: 2022-08-01
Filing date: 2022-08-01
Publication date: 2022-12-13
Anticipated expiration: 2032-08-01

Abstract

The utility model relates to a forced elevator wire rope interval constant device, which comprises an upper roller and a lower roller which are coaxially distributed along the vertical direction and are uniformly and horizontally arranged, a left wire rope connected with the upper roller and a right wire rope connected with the lower roller, wherein the upper roller and the lower roller are positioned at the rear end of a machine placing beam; vertical downwardly extending behind the left rope sheave of vertical setting and being connected with the car upper beam are walked around to left wire rope, and vertical downwardly extending behind the right rope sheave of vertical setting and being connected with the car upper beam are walked around to right wire rope, and vertical lift just can be followed to the equal vertical setting of left rope sheave and right rope sheave, and the axis rear side of cylinder and lower cylinder is located to left rope sheave and right rope sheave, and the axis of right rope sheave is vertical setting, and the axis of left rope sheave inclines mutually with the axis of right rope sheave. The utility model discloses with upper and lower cylinder along vertical distribution to can follow the rope sheave of vertical lift in the cooperation, at the perpendicular up-and-down operation in-process of car, the interval that suspends in midair of two left and right wire rope keeps invariable, effectively reduces the yawing force that car guide bore.

Description

Forced elevator steel wire rope spacing constant device

The technical field is as follows:

the utility model relates to a forced elevator wire rope interval invariant device.

Background art:

the forced drive elevator is an elevator which does not need a building to provide a closed special machine room for installing devices such as an elevator drive main machine, a control cabinet, a speed limiter and the like, namely, the elevator is driven in a non-friction mode by being suspended by a steel wire rope. The forced driving adopts a specially designed and manufactured permanent magnet synchronous host to drive the horizontal rollers at two sides to rotate through a speed reducer; two hanging steel wire ropes are commonly used, one end of each steel wire rope is fixed on the roller, and the other end of each steel wire rope is connected with the car; one roller is provided with a rope groove according to the right rotation, and the other roller is provided with a rope groove according to the left rotation; the low-speed large-torque elevator realizes low-speed large-torque so as to forcibly drive the elevator car under the condition of canceling the counterweight, and is very suitable for small-sized household elevators. The main machine and the speed limiter are basically the same as the stress working condition of the machine room traction type elevator, and the control cabinet is convenient to debug and maintain; more importantly, a special machine room is omitted, the space occupied by the balance weight is saved, the utilization rate of the building area is effectively improved, and meanwhile, the construction cost is reduced.

However, such a forced cylinder drive has its inherent features, namely: the positions of the steel wire ropes wound out of or into the roller are changed along with the change of the upper position and the lower position of the lift car in the shaft, so that the traction distance between the two steel wire ropes is also changed; the connection point of the other end of the steel wire rope and the lift car is fixed, so that the traction steel wire rope is in a 'skew-pulling and oblique-hanging' state in most of the time, and the lateral force borne by the lift car guide rail is increased.

The utility model has the following contents:

the utility model discloses make the improvement to the problem that above-mentioned prior art exists, promptly the utility model aims to solve the technical problem that a forced elevator wire rope interval invariant device is provided, not only reasonable in design reduces the yawing force that car guide bore moreover.

In order to realize the purpose, the utility model discloses a technical scheme is: a forced elevator steel wire rope interval constant device comprises an upper roller, a lower roller, a left steel wire rope and a right steel wire rope, wherein the upper roller and the lower roller are vertically and coaxially distributed and are horizontally arranged, the left steel wire rope is connected with the upper roller, the right steel wire rope is connected with the lower roller, and the upper roller and the lower roller are positioned at the rear end of a machine placing beam; left side wire rope walks around vertical downwardly extending behind the left rope sheave of vertical setting and is connected with the car upper beam, right side wire rope walks around vertical downwardly extending behind the right rope sheave of vertical setting and is connected with the car upper beam, and the car upper beam is connected with knapsack posture car, vertical lift all can be followed to left rope sheave and right rope sheave, and the axis rear side of cylinder and lower cylinder is located to left rope sheave and right rope sheave, the axis of right rope sheave is vertical setting, the axis of left rope sheave inclines mutually with the axis of right rope sheave.

Furthermore, one end of the left steel wire rope is fixed in a rope groove of the upper roller and is wound by a plurality of circles, and the other end of the left steel wire rope vertically extends downwards after being wound by 1.25 circles on the left rope pulley; one end of the right steel wire rope is fixed in a rope groove of the lower roller and is wound by a plurality of circles, and the other end of the right steel wire rope vertically extends downwards after being wound by 1.25 circles on the right rope pulley.

Furthermore, a tangent point of a pitch circle of the left steel wire rope and the left rope wheel and a connection point of the left steel wire rope and an upper beam of the lift car are positioned on the same plumb line; and the tangent point of the right steel wire rope and the pitch circle of the right rope pulley and the connection point of the right steel wire rope and the upper beam of the lift car are positioned on the same plumb line.

The power mechanism comprises a main machine base, a vertical rotating shaft, a speed reducer and a driving motor, wherein the main machine base is fixed at the top of the machine placing beam, the speed reducer is installed on the main machine base, the input end of the speed reducer is connected with the driving motor which is vertically arranged, and the output end of the speed reducer is connected with the lower end of the vertical rotating shaft; the upper roller and the lower roller are arranged on the vertical rotating shaft.

Furthermore, the middle parts of the left rope wheel and the right rope wheel are connected with rope wheel rotating shafts, the rope wheel rotating shafts are rotatably installed on the lifting seat, the rope wheel rotating shafts are rotated with a vertical lead screw nut mechanism through a transmission mechanism, and the vertical lead screw nut mechanism drives the lifting seat to lift vertically.

Furthermore, the vertical screw nut mechanism comprises a ball screw which is vertically fixed, a ball nut which is connected with the ball screw and a vertical slide rail which is parallel to the ball screw, and the ball nut is rotatably arranged in the lifting seat through a bearing; and the vertical sliding rail is connected with a sliding block in a sliding manner, and the sliding block is fixedly connected with the lifting seat.

Furthermore, the transmission mechanism comprises a first bevel gear and a second bevel gear which are arranged inside the lifting seat and are meshed with each other, the first bevel gear is arranged on the rope pulley rotating shaft, and the second bevel gear is fixedly connected with the ball nut.

Compared with the prior art, the utility model discloses following effect has: the utility model discloses with upper and lower cylinder along vertical distribution to can follow the rope sheave of vertical lift in the cooperation, at the perpendicular up-and-down operation in-process of car, left and right two wire rope suspend in midair the interval and keep invariable, reasonable in design effectively reduces the yawing force that car guide bore.

Description of the drawings:

fig. 1 is a schematic front view of the embodiment of the present invention;

fig. 2 is a schematic top view of an embodiment of the present invention;

fig. 3 is a schematic structural diagram of a power mechanism in an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a transmission mechanism in an embodiment of the present invention.

In the figure:

1-steel structure well; 2-placing a machine beam; 3-a car; 4-car upper beam; 10-a main machine seat; 11-a drive motor; 12-a retarder; 13-an upper roller; 14-a lower roller; 15-a brake; 21-left wire rope; 22-right wire rope; 23-a left sheave; 24-a right sheave; 25-a cord head assembly; 31-a first bevel gear; 32-a second bevel gear; 33-ball screw; 34-a ball nut; 35-a bearing; 36-a lifting seat; 37-vertical slide rail; 38-a slide block; 39-lower support plate; 40-an upper support plate; 41-a sheave shaft; 42-backpack frame type car; 43-car guide rails; 44-vertical rotation axis.

The specific implementation mode is as follows:

the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

As shown in fig. 1 to 4, the utility model relates to a forced elevator steel wire rope spacing constant device, which is used for a backpack frame type cage, and comprises an upper roller 13 and a lower roller 14 which are coaxially distributed (i.e. vertically distributed) and are uniformly and horizontally arranged, a left steel wire rope 21 connected with the upper roller 13, and a right steel wire rope 22 connected with the lower roller 14, wherein the upper roller 13 and the lower roller 14 are positioned at the rear end of a machine placing beam 2; left side wire rope 21 walks around vertical downwardly extending behind the left rope sheave 23 of vertical setting and is connected with car upper beam 4, vertical downwardly extending behind the right rope sheave 24 of vertical setting and being connected with car upper beam 4 on the car, the car upper beam is connected with knapsack posture car, vertical lift all can be followed to left rope sheave 23 and right rope sheave 24, and the axis rear side of cylinder 13 and lower cylinder 14 is located to left rope sheave 23 and right rope sheave 24, the axis of right rope sheave 24 is vertical setting, the axis of left rope sheave 23 inclines mutually with the axis of right rope sheave. Because in the knapsack posture car, car guide rail 43 is located the rear side of knapsack posture car 42, sets up upper roller 13 and lower roller 14 at the rear end of putting quick-witted roof beam 2 this moment, and the axis of right rope sheave 24 is vertical setting, the axis of left rope sheave 23 is inclined mutually with the axis of right rope sheave, can make left and right wire rope corresponding with the car guide rail. When the rope winding and releasing device works, the upper roller 13 winds or releases the left rope pulley 21, the left rope pulley 23 is driven to rotate by the left rope pulley 21 through friction force, the right rope pulley 24 is driven to rotate by the right rope pulley 22 through the lower roller 14, and the right rope pulley 22 is driven to rotate through friction force.

In this embodiment, one end of the left steel wire rope 21 is fixed in the rope groove of the upper roller 13 and is wound by a plurality of circles, and the other end of the left steel wire rope 21 is wound by 1.25 circles on the left rope pulley 23 and then vertically extends downwards, that is: the left steel wire rope is wound by 1.25 circles around the left rope wheel and then extends downwards to be connected with the upper beam of the lift car; one end of the right steel wire rope 22 is fixed in a rope groove of the lower roller 14 and is wound by a plurality of circles, and the other end of the right steel wire rope 22 is wound by 1.25 circles on the right rope pulley 24 and then vertically extends downwards, namely: the right steel wire rope winds the right rope wheel for 1.25 circles and then extends downwards to be connected with the upper beam of the lift car.

In this embodiment, the tangent point of the pitch circle of the left steel wire rope 21 and the left rope pulley 23 (i.e. the tangent point of the suspension section of the left steel wire rope 21 and the left rope pulley 23) and the connection point of the left steel wire rope 21 and the car upper beam 4 are located on the same plumb line; the tangent point of the pitch circle of the right rope 22 and the right rope pulley 24 (namely, the tangent point of the suspension section of the right rope 22 and the right rope pulley 24) and the connection point of the right rope 22 and the upper beam 4 of the cage are positioned on the same plumb line. Because the pitch circle tangent point of the suspension steel wire rope and the rope pulley and the connecting point of the steel wire rope and the upper beam of the lift car are on the same vertical line, the suspension distance of the two steel wire ropes is constant in the whole vertical up-and-down running process of the lift car, and the inherent benefit that the steel wire ropes are 'inclined, inclined and hung' in the existing roller drive elevator is broken.

In this embodiment, the device further comprises a power mechanism for driving the upper roller and the lower roller to rotate, wherein the power mechanism comprises a main machine base 10, a vertical rotating shaft 44, a speed reducer 12 and a driving motor 11, the main machine base 10 is fixed at the top of the machine placing beam 2, the speed reducer 12 is installed on the main machine base 10, the input end of the speed reducer 12 is connected with the driving motor 11 which is vertically arranged, and the output end of the speed reducer 12 is connected with the lower end of the vertical rotating shaft; the upper roller 13 and the lower roller 14 are coaxially arranged on the vertical rotating shaft; the brake 15 is mounted on the top of the driving motor 11. When the automatic transmission device works, the driving motor drives the vertical rotating shaft to rotate through the speed reducer, and the vertical rotating shaft drives the upper roller and the lower roller which are horizontally arranged to synchronously rotate. Preferably, the driving motor is a permanent magnet synchronous motor.

In this embodiment, the middle portions of the left rope sheave 23 and the right rope sheave 24 are both connected with a rope sheave rotating shaft 41, the rope sheave rotating shaft 41 is rotatably mounted on the lifting seat 36, the rope sheave rotating shaft 41 rotates with a vertical lead screw nut mechanism through a transmission mechanism, and the vertical lead screw nut mechanism drives the lifting seat 36 to vertically lift.

In this embodiment, the vertical screw nut mechanism includes an upper support plate 40, a lower support plate 39, a ball screw 33 vertically fixed between the upper support plate 40 and the lower support plate 39, a ball nut 34 connected with the ball screw 33, and a vertical slide rail 37 parallel to the ball screw 33, wherein the ball nut 34 is rotatably mounted inside the lifting seat 36 through a bearing 35; the vertical slide rail 37 is connected with a slide block 38 in a sliding manner, and the slide block 38 is fixedly connected with the lifting seat 36; the transmission mechanism comprises a first bevel gear 31 and a second bevel gear 32 which are arranged inside the lifting seat 36 and are meshed with each other, the first bevel gear 31 is installed on the rope pulley rotating shaft 41, and the second bevel gear 32 is fixedly connected with the ball nut 34. During operation, wire rope leans on frictional force to drive the rope sheave rotatory, and it is rotatory that the rope sheave drives the rope sheave pivot, and the rope sheave pivot drives ball nut through engaged with first bevel gear and second bevel gear and rotates, and ball nut rotates and reciprocates along ball screw, and ball nut drives the lift seat and slides along vertical slide rail, and the lift seat drives the rope sheave through the rope sheave pivot and goes up and down along vertical together, promptly: in the lifting process of the elevator, the left rope pulley and the right rope pulley lift vertically.

In this embodiment, the vertical slide rail 37 includes a linear guide rail and a support pillar, and forms a slide rail with sufficient bending strength and compression bar stability together with the upper and lower support plates.

The specific implementation process comprises the following steps: the driving motor 11 drives the vertical rotating shaft to rotate through the speed reducer 12, the vertical rotating shaft drives the vertically distributed upper roller 13 and the lower roller 14 to rotate, the upper roller 13 winds or releases the left rope wheel 21, the left rope wheel 23 is driven to rotate by the left rope wheel 21 through friction force, the lower roller 14 winds or releases the right rope wheel 22, the right rope wheel 22 is driven to rotate by the right rope wheel 22 through friction force, the ball nut 34 is driven to rotate by the first bevel gear 31 and the second bevel gear 32 when the left rope wheel 23 and the right rope wheel 24 rotate, the ball nut 34 drives the lifting seat 36 to slide along the vertical sliding rail 37, and the left rope wheel 23 and the right rope wheel 24 can lift vertically. In the process, because the tangent point of the pitch circle of the steel wire rope and the rope wheel and the connecting point of the steel wire rope and the upper beam of the lift car are positioned on the same plumb line, the suspension distance of the two steel wire ropes is constant in the whole vertical up-and-down running process of the lift car, the condition that the steel wire ropes are obliquely pulled and hung is avoided, and the lateral force born by the guide rail of the lift car is effectively reduced.

The utility model has the advantages that: (1) The steel wire ropes are connected with the lift car after being wound by 1.25 circles of the rope wheels, and because the connection points and the pitch circle tangent points of the rope wheels are on the same plumb line, the suspension distance of the two steel wire ropes is constant in the whole process of vertical up-and-down running of the lift car, thereby breaking the inherent limitation that the steel wire ropes are obliquely pulled and hung in the existing roller drive elevator; (2) The rope pulley rotates and drives the lifting seat to move up and down together with the rope pulley through bevel gear transmission and ball screw transmission, so that the moving speed of the steel wire rope at the radial tangent point of the roller is consistent with that of the steel wire rope at the pitch circle tangent point of the rope pulley, and the steel wire rope is ensured not to jump and get out of the groove.

The utility model discloses if disclose or related to mutual fixed connection's spare part or structure, then, except that other the note, fixed connection can understand: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).

In addition, the terms used in any aspect of the present disclosure as described above to indicate positional relationships or shapes include similar, analogous, or approximate states or shapes unless otherwise stated.

The utility model provides an arbitrary part both can be assembled by a plurality of solitary component parts and form, also can be the solitary part that the integrated into one piece technology was made.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, it should be understood by those skilled in the art that: modifications can still be made to the embodiments of the invention or equivalents may be substituted for some of the features; without departing from the spirit of the present invention, it should be understood that the scope of the claims is intended to cover all such modifications and variations.

Claims

1. The forced elevator steel wire rope interval constant device is characterized in that: the machine comprises an upper roller and a lower roller which are coaxially distributed along the vertical direction and are horizontally arranged, a left steel wire rope connected with the upper roller and a right steel wire rope connected with the lower roller, wherein the upper roller and the lower roller are positioned at the rear end of a machine placing beam; left side wire rope walks around vertical downwardly extending behind the left rope sheave of vertical setting and is connected with the car upper beam, right side wire rope walks around vertical downwardly extending behind the right rope sheave of vertical setting and is connected with the car upper beam, and the car upper beam is connected with knapsack posture car, vertical lift all can be followed to left rope sheave and right rope sheave, and the axis rear side of cylinder and lower cylinder is located to left rope sheave and right rope sheave, the axis of right rope sheave is vertical setting, the axis of left rope sheave inclines mutually with the axis of right rope sheave.

2. The forced elevator rope spacing constancy apparatus of claim 1, characterized in that: one end of the left steel wire rope is fixed in a rope groove of the upper roller and is wound by a plurality of circles, and the other end of the left steel wire rope vertically extends downwards after being wound by 1.25 circles on the left rope pulley; one end of the right steel wire rope is fixed in a rope groove of the lower roller and is wound by a plurality of circles, and the other end of the right steel wire rope vertically extends downwards after being wound by 1.25 circles on the right rope pulley.

3. The forced elevator rope spacing constancy apparatus of claim 2, characterized in that: the tangent point of the pitch circle of the left steel wire rope and the left rope wheel and the connection point of the left steel wire rope and the upper beam of the lift car are positioned on the same plumb line; and the tangent point of the pitch circle of the right steel wire rope and the right rope wheel and the connecting point of the right steel wire rope and the upper beam of the lift car are positioned on the same plumb line.

4. The forced elevator rope pitch constancy apparatus as claimed in claim 1, wherein: the power mechanism comprises a main machine base, a vertical rotating shaft, a speed reducer and a driving motor, wherein the main machine base is fixed at the top of the machine placing beam, the speed reducer is installed on the main machine base, the input end of the speed reducer is connected with the driving motor which is vertically arranged, and the output end of the speed reducer is connected with the lower end of the vertical rotating shaft; the upper roller and the lower roller are arranged on the vertical rotating shaft.

5. The forced elevator rope spacing constancy apparatus of claim 1, characterized in that: the middle parts of the left rope wheel and the right rope wheel are connected with rope wheel rotating shafts, the rope wheel rotating shafts are rotatably installed on the lifting seat, the rope wheel rotating shafts are rotated with a vertical lead screw nut mechanism through a transmission mechanism, and the vertical lead screw nut mechanism drives the lifting seat to lift vertically.

6. The forced elevator rope pitch constancy apparatus as claimed in claim 5, wherein: the vertical screw nut mechanism comprises a ball screw which is vertically fixed, a ball nut which is connected with the ball screw and a vertical slide rail which is parallel to the ball screw, and the ball nut is rotatably arranged in the lifting seat through a bearing; and the vertical sliding rail is connected with a sliding block in a sliding manner, and the sliding block is fixedly connected with the lifting seat.

7. The forced elevator rope pitch constancy apparatus as claimed in claim 6, wherein: the transmission mechanism comprises a first bevel gear and a second bevel gear which are arranged inside the lifting seat and are meshed with each other, the first bevel gear is installed on the rotating shaft of the rope wheel, and the second bevel gear is fixedly connected with the ball nut.