摘要:
The present application provides a force application assembly (100), an elevator and a method of elevator rescue. The force application assembly (100) is provided for applying a force to an elevator car (103) when the elevator car (103) and a counterweight (105) are in a balanced state, and the force application assembly (100) includes: a first attachment portion (110), which is configured to be removably attached to an elevator hoistway (117); a second attachment portion (120), one end of which is removably fixed relative to the elevator car (103) or the counterweight (105), and which is configured to be at least partially elastic; an actuation portion (130) connected between the first attachment portion (110) and the second attachment portion (120), wherein the first attachment portion (110) is configured to be fixed relative to the actuation portion (130), and the second attachment portion (120) is configured to be movable relative to the actuation portion (130); and an operation portion (140), which is associated with the actuation portion (130) and is operable to move the second attachment portion (120) away from or close to the actuation portion (130); wherein the actuation portion (130) applies a force to the second attachment portion (120), and the force is stored as elastic potential energy in the second attachment portion (120) before the balanced state of the elevator car (103) and the counterweight (105) is broken.
摘要:
There is a hoist with built-in load sensitive automatic speed change device including: a high-torque input member 12 coupled to a hand wheel 18, a magnetic clutch 14 coupled via a speed-increasing mechanism 15 and configured to transmit a low load, and an output transmitting means 13 configured to transmit a rotational operating force of the hand wheel 18 to mechanical brakes 7, 8 via the high-torque input member 12 or the magnetic clutch 14, wherein the hand wheel 18 is axially supported by a drive member 10 coupled to the output transmitting means 13 of the mechanical brakes 7, 8 and rotated thereby, the magnetic clutch 14 is arranged between the speed-increasing mechanism 15 and the hand wheel 18, the hand wheel 18 and the speed-increasing mechanism 15 are coupled by a hollow input member 11 provided so as to cover the outer periphery of the magnetic clutch 14 so as to allow transmission of torque, the output transmitting means 13 is fitted onto a boss portion 10a of the drive member 10 so as to allow torque transmission to the boss portion, so that reduction in size of the load sensitive automatic speed change device and prevention of entry of dust or the like into the magnetic clutch are achieved.
摘要翻译:具有内置负载敏感型自动变速装置的起重机包括:联接到手轮18的高扭矩输入构件12,经由增速机构15联接并构造成传递低负载的电动离合器14, 以及输出传递装置13,被配置为经由高扭矩输入构件12或电磁离合器14将手轮18的旋转操作力传递到机械制动器7,8,其中手轮18由驱动构件 10,其耦合到机械制动器7,8的输出传递装置13并由此旋转,磁性离合器14布置在增速机构15和手轮18之间,手轮18和增速机构15 通过设置成覆盖电磁离合器14的外周以便允许传递扭矩的空心输入构件11耦合,输出传递装置13装配到驱动器membe的凸台部分10a上 r 10,以便允许扭矩传递到凸台部分,从而实现了负载敏感的自动变速装置的尺寸的减小和防止灰尘等进入到磁性离合器中。
摘要:
A raising and lowering device (10), particularly suitable for incapacitated human or animal patients (2). The device includes a load carrying support (4) having at least one elongated arm (7) including a proximal end section (7a) and distal end section (7b). The arm is pivotable on the device at the proximal end section (7a) and movable by pivoting between an operating position in which the support is positioned for carrying said load, and a stored position in which the arm forms a graspable handle allowing an operator to carry the device. The invention also relates to components suitable for use with the device. The device also includes a one-way roller bearing (46) and sprocket wheel (18). Also disclosed are a magnetic clutch (60) and a drive chain (20).
摘要:
The invention relates to a lifting jack (1) that is provided with a driving wheel (2), an automatic mechanical brake (3), a load wheel (4) and a gearbox (5) which are axially arranged in tandem in a housing. The driving wheel (2) which is provided on one end (6) of a drive shaft (7) can be coupled to the gearbox (5) in a torque-transmitting manner and by means of the drive shaft (7) which intersperses the automatic mechanical brake (3) and the load wheel (4), whereby said gearbox (5) is situated on the remaining end (8) of the drive shaft (7) and drives the load wheel (4). The driving wheel (2) cannot be axially displaced on the drive shaft (7) but is mounted in such a way that said wheel can be relatively rotated in a limited manner. The driving wheel can be coupled to a brake disc (29) in a limited and relatively rotatable manner. Said brake disc can be axially displaced on a thread section (31) of the drive shaft (7) and can be pressed against a pressure disc (33) by integrating a friction disc (32). Said pressure disc is fixed to the housing. The driving wheel (2) is a component of the automatic mechanical brake (3).
摘要:
To provide to provide a hand operated chain block capable of facilitating the fitting of the brake cover (31) to the related side plate (2) without worsening the appearance of the chain block, a brake cover (31) is provided, at a marginal portion therearound, with a flange portion (46) extending outwardly in the same direction as one side plate (2) to abut with the one side plate (2), and the flange portion (46) is provided, at a marginal portion therearound, with recesses (47,48,49) fittable to the stay bolts (16,17,18). The recesses (47,48,49) are brought into engagement with the related stay bolts (16,17,18) by fitting the recesses (47,48,49) to the related stay bolts (16,17,18), thus enabling the brake cover (31) to be easily fixed in place and also be prevented from being disengaged from the one side plate (2) accidentally.
摘要:
A device for hoisting and lowering a load comprises driving (13, 14), coupling (5, 6) and winding means (1, 2, 3), wherein at the start of the hoisting operation, the driving means (13, 14) and the coupling means (5, 6) undergo an axial displacement relative to each other such that a coupling between the driving means (13, 14) and the winding means (1, 2, 3) becomes possible thereby, and wherein at the start of the lowering operation, an uncoupling between these driving means (13, 14) and the winding means (1, 2, 3) is effected. A locking member (16) is present for locking the coupling means (13, 14) before the driving (13, 14) and coupling means (5, 6) are axially displaced relative to each other to enable a coupling between the driving (13, 14) and winding means (1, 2, 3), and for undoing this locking when the coupling is effected before the load is hoisted.