Rotary-weaving front elevator traction machine with remote brake release auxiliary device

Abstract

The utility model provides a rotary preposed elevator traction machine with a remote brake release auxiliary device, which comprises a traction machine main body, one end of the traction machine main body far away from a shaft wall is a front end, and the front end of a traction wheel of the traction machine main body is coaxially provided with a rotary encoder; brakes are installed on the left side and the right side of the traction machine body correspondingly, two remote brake release auxiliary devices are installed on the portions, below the brakes, of the traction machine body correspondingly, and each remote brake release auxiliary device comprises a horizontal wire clamping plate fixed to the traction machine body; the horizontal wire clamping plate is provided with a horizontal clamping groove used for clamping the brake release steel wire rope so that the brake release steel wire rope can be kept vertical all the time in the area close to the brake. The elevator traction machine has the advantages that the brake releasing operation safety is higher, and the wiring safety of the rotary encoder is higher.

Description

Technical Field

[0001] This utility model relates to the field of elevator traction machine technology, specifically to an elevator traction machine with a front-mounted rotary bracing system and a remote brake release auxiliary device. Background Technology

[0002] Currently, with the further promotion and application of machine room-less elevators, the market demand for machine room-less elevator products is also increasing. The main unit of existing machine room-less elevators is installed in the shaft, and people cannot directly release the brake of the traction machine like in machine room elevators. The release device needs to be operated from outside the shaft.

[0003] For safety reasons, elevators are equipped with brake release devices. When the elevator loses power or malfunctions and the brake engages, release is usually achieved either manually or remotely. However, in machine-room-less elevators, due to space constraints, a person's arm cannot reach the motor's brake release handle, making manual release impossible. Therefore, the brake release device must be operated remotely from outside the shaft.

[0004] The existing brake release mechanism has a complex structure. When the brake release wire rope is long, it is inconvenient to fix the part of the brake release wire rope near the brake, which affects the brake release operation.

[0005] In addition, the traction machine, as the driving component of the elevator, is the device that drives the elevator car and counterweight to move up and down. It is mainly composed of components such as the base, stator, rotor, brake, and traction sheave. Among them, the rotary encoder is one of the core components of the elevator control system and safety protection system. Through real-time monitoring and feedback, it becomes the nerve center of the elevator's intelligent control and safe operation.

[0006] Most existing traction machines have a rear-mounted rotary encoder structure. When the rear end of the traction machine, i.e., the rear-mounted rotary encoder, is close to the wall of the machine room, the gap between the rotary encoder lead wire and the wall is too small. The cable is easily damaged and short-circuited due to compression, which poses a safety hazard.

[0007] For the reasons mentioned above, changing the installation position of the rotary encoder and redesigning the brake release mechanism are comprehensive technical challenges that urgently need to be addressed. Utility Model Content

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing an elevator traction machine with a remote brake release auxiliary device that offers higher safety in brake release operation and improved safety in rotary encoder wiring.

[0009] To achieve the above objectives, the technical solution adopted by this utility model is: an elevator traction machine with a rotary encoder and a remote brake release auxiliary device, comprising a traction machine body, the end of the traction machine body away from the shaft wall being the front end, and a rotary encoder being coaxially mounted on the front end of the traction wheel of the traction machine body;

[0010] Brakes are installed on the left and right sides of the traction machine body. Two remote brake release auxiliary devices are installed on the traction machine body below the brakes. The remote brake release auxiliary device includes a horizontal cable clamping plate fixed on the traction machine body. The horizontal cable clamping plate is provided with a horizontal clamping groove for clamping the brake release wire rope so that the brake release wire rope always remains vertical in the area near the brake.

[0011] Preferably, the remote brake release auxiliary device is an L-shaped plate, one side of which is fixed to the traction machine body by bolts or welding, and the other side of which extends horizontally outward to form the horizontal clamping plate. The outer end of the horizontal clamping plate is provided with at least two horizontal clamping slots.

[0012] Preferably, the release wire rope is vertically positioned from the connection end of the brake to the engagement point of the horizontal slot.

[0013] Preferably, a pair of locking sleeve assemblies are provided at the engagement point between the release wire rope and the horizontal groove. The diameter of the locking sleeve assembly is larger than the groove width of the horizontal groove, and the length of the release wire rope between the pair of locking sleeve assemblies matches the thickness of the horizontal groove.

[0014] Preferably, the release wire rope is provided with at least two pairs of locking sleeve assemblies for adjusting the locking position of the release wire rope and thus adjusting the tension of the release wire rope.

[0015] Preferably, the traction machine body includes a base, a protective cover, an integrated traction sheave, a stator, and a rotary encoder shaft. The main shaft of the integrated traction sheave is rotatably mounted in the base via a front bearing and a rear bearing. The stator is mounted on the base outside the main shaft. The rear end of the rotary encoder shaft is bolted to the front end of the integrated traction sheave and is coaxially arranged with the main shaft of the integrated traction sheave. The rotary encoder is mounted to the front end of the rotary encoder shaft via a threaded connection. The protective cover covers the front end of the base.

[0016] Preferably, the protective cover is provided with rope baffles and openings on its left and right sides, respectively.

[0017] Preferably, a lifting ring is provided at the top of the base.

[0018] Preferably, an emergency stop switch and a junction box are also provided outside the base.

[0019] Preferably, a bearing end cap is installed at the rear end of the integrated traction sheave.

[0020] This utility model has substantial features and advancements compared to existing technologies. Specifically, this utility model addresses the brake of an elevator traction machine by installing a horizontal cable clamping plate with a horizontal groove on the traction machine body below it. This plate is used to clamp a portion of the release wire rope near the brake area into the horizontal groove. Regardless of changes in the angle of remote control, the release wire rope at the brake always remains vertical, ensuring the stability of the release operation, preventing problems such as cable jamming, and improving safety.

[0021] At the same time, the rotary encoder is installed at the front end of the integrated traction sheave, away from the well wall of the shaft, which makes it easier to bring out the lead wire of the rotary encoder.

[0022] After the above-mentioned overall renovation, the elevator traction machine has more space for both the release wire rope and the rotary encoder, thus improving safety. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the internal structure of an elevator traction machine with a remote brake release auxiliary device at the front of the rotary bracing system, as described in this utility model.

[0024] Figure 2 This is an isometric view of an elevator traction machine with a remote brake release auxiliary device at the front of the rotary bracing system, as described in this utility model.

[0025] Figure 3 This is a schematic diagram of the structure of the long-range brake release auxiliary device of this utility model.

[0026] 1. Rotary encoder; 2. Support plate; 3. Rotary encoder shaft; 4. Front bearing; 5. Integrated traction sheave; 6. Stator; 7. Emergency stop switch; 8. Lifting ring; 9. Junction box; 10. Protective cover; 11. Base; 12. Rope guide plate; 14. Bearing end cover; 15. Rear bearing; 16. Brake; 17. Remote brake release auxiliary device; 18. Brake release wire rope; 19. Locking sleeve assembly. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments.

[0028] like Figures 1-3 As shown, an elevator traction machine with a remote brake release auxiliary device is provided, comprising a traction machine body, the end of the traction machine body away from the shaft wall being the front end, and a rotary encoder being coaxially mounted on the front end of the traction wheel of the traction machine body.

[0029] Specifically, the traction machine body includes a base 11, a protective cover 10, an integrated traction sheave 5, a stator 6, and a rotary encoder 3. The integrated traction sheave 5 comprises the entire structure of the traction sheave, rotor body, and main shaft, and is manufactured by integral casting. The main shaft is rotatably mounted in the base 11 via a front bearing 4 and a rear bearing 15. The stator 6 is mounted on the base 11 outside the main shaft. The rear end of the rotary encoder 3 is bolted to the front end of the integrated traction sheave 5 and is coaxially arranged with the main shaft of the integrated traction sheave 5. The rotary encoder 1 is connected via... The rotary encoder 1 is installed at the front end of the rotary encoder shaft 3 via a threaded connection. The outer circle of the rotary encoder 1 fits against the inner wall of the center hole of the support plate 2. The support plate 2 is connected to the front end face of the base 11 via a threaded connection to support the rotary encoder 11. The protective cover 10 covers the front end of the base. The left and right sides of the protective cover 10 are respectively provided with rope baffles 12 and openings. The top of the base 11 is provided with a lifting ring 8. An emergency stop switch 7 and a junction box 9 are also provided outside the base 11. The rear end of the integrated traction sheave 5 is equipped with a bearing end cover 14.

[0030] Brakes 16 are installed on the left and right sides of the traction machine body, respectively. Two remote brake release auxiliary devices 17 are installed on the traction machine body below the brakes 16. The remote brake release auxiliary device 17 includes a horizontal cable clamping plate fixed on the traction machine body. The horizontal cable clamping plate is provided with a horizontal clamping groove for clamping the brake release wire rope so that the brake release wire rope 18 always remains vertical in the area near the brake.

[0031] In this embodiment, the remote brake release auxiliary device 17 is an L-shaped plate. One side of the L-shaped plate is fixed to the traction machine body by bolts or welding, and the other side of the L-shaped plate extends horizontally outward to form the horizontal clamping plate. The outer end of the horizontal clamping plate is provided with at least two horizontal clamping slots.

[0032] The release wire rope is vertically positioned from the connection end of the brake to the engagement point of the horizontal slot. This structural design ensures that the spatial position of the release wire rope relative to the brake remains fixed during the effective phase of the structure, without any angular deviation. This, in turn, ensures the stability of the release operation and improves safety.

[0033] To facilitate locking, a pair of locking sleeve assemblies 19 are fitted over the engagement point between the release wire rope and the horizontal groove. The structure of the locking sleeve assembly can be a rope sleeve structure in the form of a nut sleeve, which can lock and fix a part of the release wire rope. The diameter of the locking sleeve assembly is larger than the groove width of the horizontal groove. The length of the release wire rope between the pair of locking sleeve assemblies matches the thickness of the horizontal groove, and is used to lock it in the horizontal groove.

[0034] To improve adjustment flexibility, the release wire rope is equipped with at least two pairs of locking sleeve assemblies, which are used to adjust the locking position of the release wire rope and thus adjust the tension of the release wire rope.

[0035] Structural principle explanation:

[0036] Since the installation position of the rotary encoder has been changed from the rear end of the entire traction machine to the front end, there is more space for the lead wire to come out from the front end, which effectively avoids the problem of limited wiring space. The lead wire can be led out through the opening on the cover 10, and a horizontal slot in the remote brake release auxiliary device 17 can be set for temporary position fixation, which also improves installation stability.

[0037] For the release wire rope 18, one end is fixed to the brake and then passes through the remote release auxiliary device 17. Under the restriction of the remote release auxiliary device 17, the release wire rope 18 near the brake area is always in a vertical state, and the stability is controlled. Even if the angle of the remote release switch is very small, it will not affect the angle of the release wire rope near the brake, thereby improving the stability and safety of the release operation.

[0038] Finally, it should be noted that: the preferred embodiments of this patent have been described in detail above, but this patent is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this patent.

Claims

1. An elevator hoisting machine with a rotary weaving pre-belt remote brake release assist device, characterized by: It includes a traction machine body, the end of the traction machine body away from the shaft wall is the front end, and a rotary encoder is coaxially installed on the front end of the traction wheel of the traction machine body; Brakes are installed on the left and right sides of the traction machine body. Two remote brake release auxiliary devices are installed on the traction machine body below the brakes. The remote brake release auxiliary device includes a horizontal cable clamping plate fixed on the traction machine body. The horizontal cable clamping plate is provided with a horizontal clamping groove for clamping the brake release wire rope so that the brake release wire rope always remains vertical in the area near the brake.

2. The elevator hoist machine with preformed remote release of the spin-to- lock band brake assist device of claim 1, wherein: The remote brake release auxiliary device is an L-shaped plate. One side of the L-shaped plate is fixed to the traction machine body by bolts or welding. The other side of the L-shaped plate extends horizontally outward to form the horizontal clamping plate. The outer end of the horizontal clamping plate is provided with at least two horizontal clamping slots.

3. The elevator hoist machine with pre-rotating rope remote release brake assist of claim 1 or 2, wherein: The release wire rope is vertically positioned from the connection end of the brake to the locking point of the horizontal slot.

4. The elevator hoist machine with preformed remote release of the spin-to- lock headgear according to claim 3, characterized in that: The release wire rope is fitted with a pair of locking sleeve assemblies at the engagement point with the horizontal groove. The diameter of the locking sleeve assembly is larger than the width of the horizontal groove, and the length of the release wire rope between the pair of locking sleeve assemblies matches the thickness of the horizontal groove.

5. The elevator traction machine with remote brake release auxiliary device before rotary bracing as described in claim 4, characterized in that: The release wire rope is provided with at least two pairs of locking sleeve assemblies, which are used to adjust the locking position of the release wire rope and thus adjust the tension of the release wire rope.

6. The elevator hoist machine with pre-wound lead remote release of the present invention of claim 1 or 2 or 4 or 5, wherein: The main body of the traction machine includes a base, a protective cover, an integrated traction sheave, a stator, and a rotary encoder shaft. The main shaft of the integrated traction sheave is rotatably mounted in the base via a front bearing and a rear bearing. The stator is mounted on the base outside the main shaft. The rear end of the rotary encoder shaft is bolted to the front end of the integrated traction sheave and is coaxially arranged with the main shaft of the integrated traction sheave. The rotary encoder is mounted to the front end of the rotary encoder shaft via a threaded connection. The protective cover covers the front end of the base.

7. The elevator hoist machine with preformed remote release of the spin-to- lock band brake assist device of claim 6, wherein: The protective cover is provided with rope baffles and openings on its left and right sides, respectively.

8. The elevator hoist machine with preformed remote release of the spin-to- lock band brake assist device of claim 7, wherein: A lifting ring is provided at the top of the base.

9. The roping machine of claim 6, wherein: An emergency stop switch and a junction box are also installed outside the base.

10. The elevator traction machine with remote brake release auxiliary device before rotary bracing as described in claim 6, characterized in that: The rear end of the integrated traction sheave is equipped with a bearing end cap.

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