A traction type villa elevator

Abstract

The invention discloses a traction villa elevator, which belongs to the technical field of elevators and aims to solve the problem that the tension of the main steel wire rope of the non-counterweight traction elevator changes during operation, resulting in poor safety performance and reliability of the elevator. The key points of the technical solution are: it includes a car located in the hoistway, a traction system connected to the car through a pulley assembly, the traction system includes a main steel wire rope, a speed limiter steel wire rope and a traction machine, the traction machine is arranged at the top of the hoistway, the main steel wire rope transmission is connected with a pressure loading device, and the pressure loading device is provided with a pressure that makes the main steel wire rope produce sufficient tension; the pressure loading device includes a tensioning mechanism and a brake control device, and the brake control device is used to start the brake device when the tension of the main steel wire rope is insufficient. The pressure loading device based on the counterweight action principle is used to replace the traditional counterweight system, which not only saves the hoistway space, but also can automatically activate the brake control device when the tension is insufficient, thereby improving safety.

Description

Technical Field

[0001] The present invention relates to the technical field of elevators, and more specifically, to a traction-type villa elevator. Background Art

[0002] In the traditional traction elevator system, the car and counterweight are suspended in the traction wheel groove by the traction wire rope to generate sufficient pressure to form the necessary friction force, thereby driving the car and counterweight to move up and down. However, in practical applications, especially in villa environments, the small hoistway space not only limits the design and installation of the elevator, but also affects the performance and safety of the elevator, making the utilization rate of the villa elevator hoistway low and difficult to give full play to the efficiency of the elevator.

[0003] The rise or fall of a counterweightless traction elevator requires the traction machine to drive the rotation of the traction wheel, and with the help of the friction between the traction wheel and the traction rope, under the action of the steering pulley group, the elevator can be realized under the action of the traction rope. In the traditional elevator system, the tensioning device is usually applied to the speed limiter wire rope to ensure the stability of the elevator speed during operation. During the operation of the elevator, the main wire rope is a key component that bears the weight of the car. Its tension control is directly related to the smooth operation of the elevator and the safety of passengers. The tension of the main wire rope will change during the use of the elevator. Insufficient tension may cause the elevator to slip, affecting the energy efficiency and stability of the elevator operation, and even causing more serious safety hazards. When adjusting the tension of the main wire rope, relying on traditional braking equipment cannot ensure that the elevator stays in a safe position, and even safety accidents may occur. Therefore, it is necessary to propose a new solution to solve the problem that the tension of the main wire rope of the counterweightless traction elevator changes during operation, resulting in poor safety performance and reliability of the elevator. Summary of the invention

[0004] In view of the deficiencies in the prior art, the object of the present invention is to provide a traction villa elevator to achieve the purpose of improving the safety performance and reliability of the counterweight-free traction elevator.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: A traction villa elevator, comprising a car located in a hoistway, a traction system connected to the car through a pulley assembly, the traction system comprising a main steel wire rope, a speed limiter steel wire rope and a traction machine, the traction machine is arranged at the top of the hoistway,

[0006] The main steel wire rope transmission is connected with a pressure loading device, and the pressure loading device is provided with a pressure that can generate sufficient tension on the main steel wire rope;

[0007] One end of the main steel wire rope is fixed to the bottom of the hoistway, and the other end is wound around the pulley assembly, the traction wheel of the traction machine and the pressure loading device in sequence, and the terminal end of the main steel wire rope is fixed to the top of the hoistway;

[0008] The pressure loading device comprises a tensioning mechanism and a brake control device, the pressure loading device is transmission-connected with a brake device, and the brake control device is used to activate the brake device when the tension of the main steel wire rope is insufficient;

[0009] The tensioning mechanism comprises a tensioning wheel and a tension adjusting member fixedly connected to the tensioning wheel, and when the tensioning wheel moves to a position exceeding the tension setting range of the main steel wire rope, the tension adjusting member triggers the brake control device;

[0010] The pulley assembly comprises a guide wheel located at the bottom of the hoistway and a plurality of positioning wheels located on the car.

[0011] The present invention is further configured as follows: the brake control device comprises a device plate, a transmission chain, a transmission rod and a starting assembly,

[0012] A slide rail is provided on one end surface of the device plate close to the transmission chain, and the transmission rod is slidably connected to the device plate via the slide rail;

[0013] The two ends of the device plate in the length direction are rotatably connected with transmission gears, the transmission gears are driven by a driving motor, and the transmission chain is meshed with the transmission gears.

[0014] The present invention is further configured as follows: the transmission rod includes an open end and a reset end which are perpendicular to the length direction of the slide rail, the end of the transmission rod close to the tension adjusting member is the open end, the end of the transmission rod away from the tension adjusting member is the reset end, the distance between the open end and the reset end is greater than the width of the transmission chain, and the reset end is rotatably connected to a reset switch.

[0015] The present invention is further configured as follows: the starting component includes a starting switch and a transmission member, the starting switch is rotatably connected to the opening end, the starting switch includes a blocking section and a limit rod, the transmission member is fixedly connected to the transmission chain, the blocking section and the transmission member are abutted against each other before the braking control device is triggered, and after the tension adjusting member triggers the braking control device, the starting switch rotates to turn on the driving motor, and the transmission member moves with the transmission chain.

[0016] The present invention is further configured as follows: the tension adjusting member is fixedly connected with an adjusting support rod, and one end of the adjusting support rod away from the tension adjusting member is located on a moving path in front of the transmission member, and after the transmission member contacts the adjusting support rod, it pushes the adjusting support rod to move in a direction close to the tensioning wheel, and the tensioning wheel then moves in a direction away from the starting switch to a position where the tension of the main wire rope is normal.

[0017] The present invention is further configured as follows: the brake control device also includes a reset rod located at an end of the device plate away from the tensioning wheel.

[0018] The present invention is further configured as follows: the transmission member rotates to the reset end, the transmission member pushes the reset end to move the transmission rod to the position of the reset rod, the reset rod pushes the reset switch to rotate and close the brake control device, and the transmission member continues to rotate with the transmission chain.

[0019] The present invention is further configured such that: after the transmission member contacts the opening end again, it pushes the transmission rod back to the initial position, at which time the drive motor stops.

[0020] The present invention is further configured as follows: the opening end and the reset end are respectively fixedly connected with a plurality of limit members, and the limit members cooperate with the limit rod to limit the rotation angle of the start switch.

[0021] The present invention is further configured such that: the braking device is electrically connected to a safety detection device, the safety detection device is used to detect the running speed of the car, and when the running speed of the car exceeds the permitted speed range, the braking device starts the elevator to stop.

[0022] In summary, the present invention has the following beneficial effects:

[0023] The use of a pressure loading device based on the counterweight principle to replace the traditional counterweight system not only saves shaft space, but also can automatically activate the brake control device when the tension is insufficient, thereby improving safety, improving the operating performance and safety of the elevator, thereby ensuring that the elevator can run smoothly and efficiently, and improving the overall performance and safety of the elevator. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the tensioning mechanism and the brake control device in the pressure loading device;

[0026] Figure 3 for Figure 2 The enlarged view of point A in the middle;

[0027] Figure 4 The transmission member pushes the adjusting support rod to move the tensioning wheel to the position where the tension of the main wire rope is normal;

[0028] Figure 5 It is a structural schematic diagram when the transmission member pushes the reset end to move the transmission rod toward the reset rod.

[0029] In the figure: 1. car; 2. main steel wire rope; 3. traction machine; 4. pressure loading device; 41. tensioning wheel; 42. tension adjusting member; 421. adjusting support rod; 43. braking device; 51. guide wheel; 52. positioning wheel; 61. device plate; 611. slide rail; 612. transmission gear; 62. transmission chain; 63. transmission rod; 631. opening end; 632. reset end; 6321. reset switch; 7. starting switch; 71. blocking section; 72. limit rod; 8. transmission member; 9. reset rod; 10. limit member. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention. Example

[0031] like Figure 1 As shown, the traction villa elevator comprises a car 1 located in a shaft, a traction system connected to the car 1 through a pulley assembly, the traction system comprises a main steel wire rope 2, a speed limiter steel wire rope and a traction machine 3, the traction machine 3 is arranged at the top of the shaft, the traction machine 3 is a variable frequency speed regulating traction machine, powered by a frequency converter and operated at a low frequency and low speed, the traction machine 3 is small in size, light in weight and low in running noise, the pulley assembly comprises a guide wheel 51 located at the bottom of the shaft, two positioning wheels 52 respectively located at the top and bottom of the car 1, the traction wheel, the guide wheel 51 and the positioning wheel 52 of the traction machine 3 are all grooved concave wheels, the guide wheel 51 and the positioning wheel 52 in the pulley assembly They work together to ensure the stable operation of the main steel wire rope 2 in the hoistway, reduce the friction between the main steel wire rope 2 and the hoistway wall, and extend the service life of the main steel wire rope 2. The setting of the guide wheel 51 and the positioning wheel 52 helps to maintain the stability of the car 1, reduce the shaking of the car 1 during operation, and improve ride comfort. When installing a traction villa elevator without counterweight and counterweight, the hoistway does not require a deep pit or machine room, which reduces the construction cost and installation cost. The main steel wire rope 2 is wrapped around the pulley to achieve smooth operation of the elevator car 1, which reduces the noise of the elevator operation, improves the transmission efficiency, reduces the floor space, improves the utilization rate of the hoistway space, and is also convenient for installation and maintenance.

[0032] like Figure 1 and Figure 2As shown, the main steel wire rope 2 is connected to the pressure loading device 4, and the pressure loading device 4 is provided with a pressure that makes the main steel wire rope 2 produce sufficient tension. The pressure is set according to the load change of the elevator, so as to meet the normal operation of the villa elevator. One end of the main steel wire rope 2 is fixed to the top of the hoistway, and the other end is wound around the traction wheel, the pulley assembly and the pressure loading device 4 of the traction machine 3 in sequence. The terminal of the main steel wire rope 2 is fixed to the bottom of the hoistway; the pressure loading device 4 includes a tensioning mechanism and a brake control device. The pressure loading device 4 is transmission-connected with the brake device 43. The brake control device is used to When the tension of the rope 2 is insufficient, the braking device 43 is activated to stop the elevator. The braking device 43 is also electrically connected to a safety detection device, which is used to detect the running speed of the car 1. When the running speed of the car 1 exceeds the permitted speed range, the braking device 43 starts the elevator to stop. The maximum value of the permitted speed range is 1.15 times the rated speed; the tensioning mechanism includes a tensioning wheel 41 and a tension adjusting member 42 fixedly connected to the tensioning wheel 41. When the tensioning wheel 41 moves to a position exceeding the tension setting range of the main wire rope 2, the tension adjusting member 42 triggers the braking control device.

[0033] like Figure 2 and Figure 3 As shown, the brake control device includes a device plate 61 made of stainless steel, a transmission chain 62, a transmission rod 63 and a starting assembly. A slide rail 611 is provided on the end surface of the device plate 61 close to the transmission chain 62. The transmission rod 63 is slidably connected to the device plate 61 through the slide rail 611. The device plate 61 is rotatably connected to transmission gears 612 at both ends in the length direction. The transmission gear 612 is driven by a driving motor (not shown in the figure). The transmission chain 62 and the transmission gear 612 are meshed with each other. The transmission rod 63 is cross-shaped. The transmission rod 63 includes The slide rail 611 has an opening end 631 and a reset end 632 which are perpendicular to the length direction, and the distance between the opening end 631 and the reset end 632 is greater than the width of the device plate 61. The end of the transmission rod 63 close to the tension adjusting member 42 is the opening end 631, and the end of the transmission rod 63 away from the tension adjusting member 42 is the reset end 632. The reset end 632 is rotatably connected to a reset switch 6321. The opening end 631 and the reset end 632 are respectively fixedly connected to a plurality of limit members 10, and the limit members 10 cooperate with the limit rod 72 to limit the rotation angle of the start switch 7.

[0034] like Figure 2 and Figure 3As shown, the starting assembly includes a starting switch 7 and a transmission member 8. The starting switch 7 is used to start the brake device 43 and the drive motor. The starting switch 7 is rotatably connected to the opening end 631. The starting switch 7 includes a blocking section 71 and a limit rod 72. The transmission member 8 is fixedly connected to the transmission chain 62. Before the brake control device is triggered, the blocking section 71 and the transmission member 8 are abutted. After the tension adjusting member 42 triggers the brake control device, the starting switch 7 rotates to start the drive motor, and the transmission member 8 moves with the transmission chain 62. The tension adjusting member 42 is fixedly connected with an adjusting support rod 421. The end of the adjusting support rod 421 away from the tension adjusting member 42 is located on the moving path in front of the transmission member 8. After the transmission member 8 contacts the adjusting support rod 421, it pushes the adjusting support rod 421 to move in the direction close to the tension wheel 41, and the tension wheel 41 moves away from the starting switch 7 to the position where the tension of the main steel wire rope 2 is normal. When the tension of the main steel wire rope 2 is insufficient, it can respond quickly and trigger the brake control device, effectively preventing accidents caused by insufficient tension of the main steel wire rope 2.

[0035] like Figure 2 and Figure 3 As shown, the brake control device also includes a reset rod 9 located at one end of the device plate 61 away from the tensioning wheel 41. The transmission member 8 rotates to the reset end 632, and the transmission member 8 pushes the reset end 632 to move the transmission rod 63 to the position of the reset rod 9. The reset rod 9 pushes the reset switch 6321 to rotate and close the brake control device. The transmission member 8 continues to rotate with the transmission chain 62. After the transmission member 8 contacts the opening end 631 again, it pushes the transmission rod 63 back to the initial position. At this time, the drive motor stops. Through the coordinated work of the transmission chain 62, the transmission rod 63 and the starting assembly, the brake control device can automatically reset after the tension returns to normal, ensuring that the elevator can continue to operate normally. The use of the limit member 10 and the limit rod 72 limits the rotation angle of the starting switch 7 to prevent equipment damage or failure due to excessive rotation.

[0036] like Figure 1-Figure 3 As shown, the traction-type villa elevator system, through the setting of the pressure loading device 4 and the pulley assembly and the introduction of the brake control device, realizes the traction elevator without counterweight, improves the stability and safety of the main steel wire rope 2 in the shaft, reduces the elevator failures and safety hazards caused by problems with the main steel wire rope 2, realizes the smooth operation and safe parking of the elevator, improves the operation performance and safety performance of the elevator, and enables the elevator to respond quickly to emergencies to ensure the safety of passengers.

[0037] Working principle: When the tension of the main steel wire rope 2 is within the set range, the start switch 7 is located at the front end of the transmission member 8 to block the transmission member 8; when the tension of the main steel wire rope 2 is insufficient, the tensioning wheel 41 moves to a position beyond the tension setting range, and the tension adjusting member 42 triggers the start switch 7 of the brake control device, and the start switch 7 turns to turn on the drive motor. The transmission gear 612 rotates counterclockwise under the drive of the drive motor, and the transmission chain 62 rotates accordingly. The transmission member 8 moves with the transmission chain 62 to slide away from the start switch 7, and the transmission member 8 contacts the adjustment support rod 421 and pushes the adjustment The support rod 421 moves toward the direction approaching the tensioning wheel 41, and the tensioning wheel 41 moves away from the starting switch 7 to the initial position of the tension of the main wire rope 2; the transmission member 8 rotates to the reset end 632, and the transmission member 8 pushes the reset end 632 to make the transmission rod 63 slide along the slide rail 611 to the position of the reset rod 9, and the reset rod 9 pushes the reset switch 6321 to rotate and close the brake control device, and the transmission member 8 separates from the transmission rod 63 and continues to rotate with the transmission chain 62; after the transmission member 8 contacts the opening end 631 again, it pushes the transmission rod 63 back to the initial position, and the drive motor stops at this time.

[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect" and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A traction villa elevator, comprising a car (1) located in a hoistway, a traction system connected to the car (1) through a pulley assembly, the traction system comprising a main steel wire rope (2), a speed limiter steel wire rope and a traction machine (3), the traction machine (3) being arranged at the top of the hoistway, characterized in that: The main steel wire rope (2) is transmission-connected with a pressure-loading device (4), and the pressure-loading device (4) is provided with a pressure that can generate sufficient tension on the main steel wire rope (2); One end of the main steel wire rope (2) is fixed to the top of the hoistway, and the other end is wound around the pulley assembly, the traction wheel of the traction machine (3) and the pressure loading device (4) in sequence, and the terminal end of the main steel wire rope (2) is fixed to the bottom of the hoistway; The pressure loading device (4) comprises a tensioning mechanism and a brake control device. The pressure loading device (4) is transmission-connected to a brake device (43). The brake control device is used to activate the brake device (43) when the tension of the main steel wire rope (2) is insufficient. The tensioning mechanism comprises a tensioning wheel (41) and a tension adjusting member (42) fixedly connected to the tensioning wheel (41), and when the tensioning wheel (41) moves to a position exceeding the tension setting range of the main steel wire rope (2), the tension adjusting member (42) triggers the brake control device; The pulley assembly comprises a guide wheel (51) located at the bottom of the hoistway and a plurality of positioning wheels (52) located on the car (1); The brake control device comprises a device plate (61), a transmission chain (62), a transmission rod (63) and a starting assembly. A slide rail (611) is provided on one end surface of the device plate (61) close to the transmission chain (62), and the transmission rod (63) is slidably connected to the device plate (61) via the slide rail (611); The device plate (61) is rotatably connected to transmission gears (612) at both ends in the length direction, the transmission gears (612) are driven by a driving motor, and the transmission chain (62) and the transmission gears (612) are meshed with each other; The transmission rod (63) comprises an opening end (631) and a reset end (632) which are perpendicular to the length direction of the slide rail (611); the end of the transmission rod (63) close to the tension adjusting member (42) is the opening end (631); the end of the transmission rod (63) away from the tension adjusting member (42) is the reset end (632); the distance between the opening end (631) and the reset end (632) is greater than the width of the transmission chain (62); and the reset end (632) is rotatably connected to a reset switch (6321); The starting assembly comprises a starting switch (7) and a transmission member (8), the starting switch (7) being rotatably connected to the opening end (631), the starting switch (7) comprising a blocking section (71) and a limiting rod (72), the transmission member (8) being fixedly connected to the transmission chain (62), the blocking section (71) and the transmission member (8) being abutted against each other before the brake control device is triggered, and after the tension adjusting member (42) triggers the brake control device, the starting switch (7) is rotated to start the driving motor, and the transmission member (8) moves together with the transmission chain (62); The tension adjusting member (42) is fixedly connected with an adjusting support rod (421), and one end of the adjusting support rod (421) away from the tension adjusting member (42) is located on a moving path in front of the transmission member (8). After the transmission member (8) contacts the adjusting support rod (421), the adjusting support rod (421) is pushed to move in a direction close to the tensioning wheel (41), and the tensioning wheel (41) then moves in a direction away from the starting switch (7) to a position where the tension of the main steel wire rope (2) is normal.

2. A traction villa elevator according to claim 1, characterized in that: The brake control device also includes a reset rod (9) located at one end of the device plate (61) away from the tensioning wheel (41).

3. A traction villa elevator according to claim 1, characterized in that: The transmission member (8) rotates to the reset end (632), and the transmission member (8) pushes the reset end (632) to move the transmission rod (63) to the position of the reset rod (9). The reset rod (9) pushes the reset switch (6321) to rotate and close the brake control device, and the transmission member (8) continues to rotate with the transmission chain (62).

4. A traction villa elevator according to claim 1, characterized in that: After the transmission member (8) contacts the opening end (631) again, it pushes the transmission rod (63) back to the initial position, at which time the drive motor stops.

5. A traction villa elevator according to claim 2, characterized in that: The opening end (631) and the reset end (632) are respectively fixedly connected with a plurality of limit members (10), and the limit members (10) cooperate with the limit rod (72) to limit the rotation angle of the start switch (7).

6. A traction villa elevator according to claim 1, characterized in that: The brake device (43) is electrically connected to a safety detection device, which is used to detect the running speed of the car (1). When the running speed of the car (1) exceeds the permitted speed range, the brake device (43) starts to stop the elevator.

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