Lifting appliance for fan-shaped thrust pad

Abstract

The utility model relates to a lifting appliance for a fan-shaped thrust pad, which comprises two rigid lifting arms which are symmetrically arranged, the two rigid lifting arms are hinged on a lifting seat through a rotating shaft, the free ends of the two rigid lifting arms are provided with opposite bearing arms, each rigid lifting arm comprises an upper arm and a lower arm which are fixedly connected into a whole at an angle, and the bearing arms are vertically arranged at the free ends of the lower arms; flexible safety mechanisms are arranged at the two ends of the rotating shaft and comprise flexible chain ropes and electromagnets, the flexible chain ropes are hung at the ends of the rotating shaft, the electromagnets are hung at the ends of the flexible chain ropes, and the flexible safety mechanisms can be pulled by multiple angles to be obliquely fixed to the fan-shaped thrust pad to prevent the fan-shaped thrust pad from overturning during hoisting; an anti-falling mechanism is further arranged between the rigid lifting arm and the lifting seat, the anti-falling mechanism is provided with a ratchet wheel and a pawl, the ratchet wheel is fixed on the lifting seat, the pawl is movably arranged on the shaft sleeve, and the pawl can rotate through a pull button which is movably arranged on the lower arm; the special-shaped part hoisting device is simple in structure, safe and convenient to use and suitable for hoisting special-shaped parts, and the flexible safety mechanism can prevent the special-shaped parts from being overturned and unhooked.

Description

TECHNICAL FIELD

[0001] The utility model relates to hoisting equipment technical field, concretely is a kind of lifting appliance for sector thrust pad. BACKGROUND

[0002] Hydroelectric generator thrust pad is fan-shaped, and the mass of sector thrust pad is large and the center of gravity is offset due to irregular shape, so there are many inconveniences in lifting and moving during unit maintenance, and the sector thrust pad is usually directly hoisted by ordinary sling or steel wire rope after installing lifting ring on the lifting hole opened on the side, which is difficult to ensure the balance of sector thrust pad during moving, and is prone to collision and damage to the pad surface, resulting in long time consumption and low efficiency in dismounting or installing sector thrust pad, and there is a risk of imbalance and overturning and sliding. SUMMARY

[0003] The utility model aims at providing a kind of lifting appliance for sector thrust pad to solve the problems raised in the above background.

[0004] To achieve the above object, the utility model provides the following technical scheme:

[0005] A kind of lifting appliance for sector thrust pad, comprising two rigid hoisting arms arranged symmetrically, the two rigid hoisting arms are hinged on the lifting seat by pivot, and the free end thereof is provided with a load-bearing arm facing each other, the both ends of the pivot are provided with flexible safety mechanism, and the flexible safety mechanism can be multi-angle traction inclined and fixed on the sector thrust pad to prevent it from overturning.

[0006] The above-mentioned lifting appliance for sector thrust pad, the rigid hoisting arm comprises an upper arm and a lower arm fixedly connected at an angle, the load-bearing arm is vertically arranged at the free end of the lower arm, and the upper end of the upper arm is hinged on the lifting seat by the fixedly arranged shaft sleeve.

[0007] The above-mentioned lifting appliance for sector thrust pad, the connecting part of the upper arm and the lower arm is protruded away from the symmetry axis, and the included angle is arranged between 100°-160°.

[0008] The above-mentioned lifting appliance for sector thrust pad, the rigid hoisting arm and the lifting seat are further provided with a anti-disengagement mechanism, the anti-disengagement mechanism comprises a ratchet wheel, a pawl, a pulling rope and a pull knob, the ratchet wheel is fixed on the lifting seat, the pawl is movably arranged on the shaft sleeve, the pull knob is movably arranged on the lower arm, the upper end of the pulling rope is fixedly connected with the pawl, and the lower end is fixedly connected with the pull knob.

[0009] The aforementioned lifting device for fan-shaped thrust bearings has a rigid boom made of thick-walled tubing, and the pulling rope is installed along the rigid boom and passes through its internal cavity.

[0010] The aforementioned lifting device for the fan-shaped thrust bearing includes a flexible safety mechanism comprising a flexible chain and an electromagnet. The flexible chain is suspended at the end of the rotating shaft, and the electromagnet is suspended at the end of the flexible chain.

[0011] The flexible chain of the aforementioned fan-shaped thrust bearing lifting device is made of high-strength circular chain or steel wire rope.

[0012] The aforementioned lifting device for the fan-shaped thrust bearing includes an electromagnet comprising a housing, within which a power supply and a DC suction cup electromagnet are integrated, and a lifting ring and an electromagnet switch are provided on the top surface of the housing.

[0013] The aforementioned lifting device for fan-shaped thrust bearings includes a rotating shaft comprising a connecting shaft and connecting rings, with two connecting rings respectively threaded onto both ends of the connecting shaft.

[0014] The aforementioned lifting device for the sector-shaped thrust bearing includes an n-shaped base and a lifting ring, wherein the lifting ring is movably mounted on the top plate of the n-shaped base and can rotate freely.

[0015] The beneficial effects of adopting the above technical solution are:

[0016] The lifting device for fan-shaped thrust pads provided by this utility model includes two symmetrically arranged rigid booms, which are hinged to the lifting base via a pivot. Each boom has a load-bearing arm facing each other at its free end, facilitating insertion into the lifting hole and applicable to a wide range of sizes. The rigid booms consist of an upper arm and a lower arm fixedly connected at an angle, with the connection point protruding outwards for better balance and easier insertion of the load-bearing arm into the lifting hole, resulting in faster lifting. Flexible safety mechanisms are provided at both ends of the pivot, with flexible chains and electromagnets allowing for multi-angle traction and tilting to fix the fan-shaped thrust pad, preventing it from overturning during lifting. An anti-detachment mechanism is provided between the rigid boom and the lifting base to prevent accidental rotation of the rigid boom. This application features a simple structure, safe and convenient use, and is suitable for lifting irregularly shaped parts such as fan-shaped thrust pads, providing good balance and preventing overturning and detachment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model in use;

[0018] Figure 2 This is a front view structural diagram of the present invention;

[0019] Figure 3 This is a side view structural diagram of the present invention;

[0020] Figure 4It is the explosion structure schematic diagram of the utility model.

[0021] In the figure: 1, rigid suspension arm; 1-1, bearing arm; 1-2, upper arm; 1-3, lower arm; 1-4, shaft sleeve; 2, rotating shaft; 2-1, connecting shaft; 2-2, connecting ring; 3, hanging seat; 3-1, n-shaped seat; 3-2, hoisting ring; 4, flexible safety mechanism; 4-1, flexible chain cable; 4-2, electromagnet; 4-2-1, shell; 5, anti-falling mechanism; 5-1, ratchet wheel; 5-2, pawl; 5-3, pull knob; 6, fan-shaped thrust tile. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the utility model more clear, the utility model will be described clearly and completely in combination with specific embodiments.

[0023] As Figures 1 to 4 shown in a kind of fan-shaped thrust tile lifting appliance, including two rigid suspension arms 1 symmetrically arranged, two rigid suspension arms 1 are hinged on hanging seat 3 by rotating shaft 2, and the free end is provided with opposite bearing arms 1-1 for inserting into the hoisting hole on fan-shaped thrust tile 6 to carry out hoisting operation;Rotating shaft 2 both ends are provided with flexible safety mechanism 4, and flexible safety mechanism 4 can be multi-angle traction inclined and fixed on fan-shaped thrust tile 6 to prevent it from overturning during movement;Rigid suspension arm 1 includes upper arm 1-2 and lower arm 1-3 fixedly connected as a whole at an angle, and bearing arm 1-1 is vertically arranged at the free end of lower arm 1-3, the connecting part of upper arm 1-2 and lower arm 1-3 is protruded away from the symmetry axis, and the included angle is set between 100 °-160 °, so that the balanceability of lifting appliance is good when hoisting;Upper arm 1-2 upper end is hinged on hanging seat 3 by fixedly arranged welded shaft sleeve 1-4, and rigid suspension arm 1 can rotate around rotating shaft 2, so that bearing arm 1-1 inserted into the hoisting hole on the side of fan-shaped thrust tile 6 is conveniently arranged transversely, after fan-shaped thrust tile 6 is lifted, bearing arm 1-1 in the inner side of rigid suspension arm 1 has the driving force of central rotation under the action of gravity, to ensure that bearing arm 1-1 is not easy to fall off from hoisting hole, and at the same time, flexible safety mechanism 4 is inclined in side, to ensure that fan-shaped thrust tile 6 does not overturn around bearing arm 1-1 axis.

[0024] As Figure 3 and Figure 4As shown, the rigid boom 1 and the hanger 3 are further provided with a anti-off mechanism 5, the anti-off mechanism 5 includes a ratchet 5-1, a pawl 5-2, a pull rope and a pull knob 5-3, the ratchet 5-1 is fixed on the hanger 3 and does not move in any direction, the pawl 5-2 is movably arranged on the shaft sleeve 1-4 through a rotating shaft and is located on one side of the ratchet 5-1, the pawl tip is clamped on the pawl 5-2, the upper end of the pull rope is fixedly connected with the pawl 5-2, the lower end is fixedly connected with the pull knob 5-3, the pull knob 5-3 is movably arranged on the lower arm 1-3, the operator pushes the pull knob 5-3 downward, the pull rope pulls the pawl 5-2 to rotate around the shaft to make the pawl 5-2 disengage from the ratchet 5-1, and the rigid boom 1 can rotate freely; after the operator releases the push pull knob 5-3, the pawl 5-2 is reset and clamped on the ratchet 5-1, the rigid boom 1 cannot rotate outward, and the lower arm 1-3 cannot be off the lifting hole; the pull rope can be arranged on the outer surface of the rigid boom 1 or arranged in the boom, and the rigid boom 1 of the embodiment is made of a thick-walled pipe, and the pull rope is arranged in the inner cavity.

[0025] The flexible safety mechanism 4 includes a flexible chain cable 4-1 and an electromagnet 4-2, the flexible chain cable 4-1 is hung at the end of the rotating shaft 2, the electromagnet 4-2 is hung at the end of the flexible chain cable 4-1, the flexible chain cable 4-1 is made of high-strength round link chain or steel wire rope, and the electromagnet 4-2 includes a shell 4-2-1, a power supply and a direct-current suction disc type electromagnet are arranged in the shell 4-2-1, a lifting ring and an electromagnet switch are arranged on the top surface of the shell 4-2-1, and the electromagnet 4-2 is hung on the lower end of the flexible chain cable 4-1 through the lifting ring of the shell 4-2-1.

[0026] The rotating shaft 2 includes a connecting shaft 2-1 and a connecting ring 2-2, and two connecting rings 2-2 are arranged at both ends of the connecting shaft 2-1 through threads for hanging the flexible safety mechanism 4. The hanger 3 includes an n-shaped seat 3-1 and a lifting ring 3-2, the lifting ring 3-2 is movably arranged on the top plate of the n-shaped seat 3-1 and can rotate freely, and the direction is adjusted during the lifting and moving of the sector thrust tile 6.

[0027] Work flow: the operator hangs the hanger 3 on the crane, moves the lifting appliance to above the sector thrust tile 6; the operator pushes the pull knob 5-3 downward to drive the pawl 5-2 to rotate, so that the pawl 5-2 disengages from the ratchet 5-1, at this time, the rigid boom 1 can rotate freely, and the bearing arm 1-1 can be inserted into the lifting hole of the sector thrust tile 6; the electromagnet 4-2 below the flexible safety mechanism 4 is pulled to the wide side angle of the sector, the flexible chain cable 4-1 is taut, and the electromagnet 4-2 is started to be adsorbed on the sector thrust tile 6 after being taut, and the lifting and moving can be carried out.

[0028] The principle and implementation mode of the utility model are described in detail by using specific embodiments herein, and the above embodiment is only used for helping to understand the method and core idea of the utility model, and the technical solution recorded in the foregoing embodiment can be modified by the person skilled in the art, or some technical features can be replaced equivalently; and the modification or replacement does not make the essence of the corresponding technical solution deviate from the spirit and range of the technical solution of the utility model embodiment.

Claims

1. A lifting device for a fan-shaped thrust bearing, characterized in that: It includes two symmetrically arranged rigid booms (1), which are hinged to the base (3) by a pivot (2). The free ends of the booms (1-1) are provided with opposing load-bearing arms (1-1). Both ends of the pivot (2) are provided with flexible safety mechanisms (4). The flexible safety mechanisms (4) can be pulled and tilted at multiple angles to fix the fan-shaped thrust pad (6) to prevent it from overturning.

2. The lifting device for a fan-shaped thrust bearing according to claim 1, characterized in that: The rigid boom (1) includes an upper arm (1-2) and a lower arm (1-3) that are fixedly connected at an angle. The load-bearing arm (1-1) is vertically arranged at the free end of the lower arm (1-3). The upper end of the upper arm (1-2) is hinged to the hanger (3) through a fixed bushing (1-4).

3. The lifting device for a fan-shaped thrust bearing according to claim 2, characterized in that: The connection between the upper arm (1-2) and the lower arm (1-3) protrudes away from the axis of symmetry, and the included angle is set between 100° and 160°.

4. The lifting device for a fan-shaped thrust bearing according to claim 3, characterized in that: An anti-detachment mechanism (5) is also provided between the rigid boom (1) and the lifting seat (3). The anti-detachment mechanism (5) includes a ratchet (5-1), a pawl (5-2), a pull rope, and a pull button (5-3). The ratchet (5-1) is fixed on the lifting seat (3). The pawl (5-2) is movably mounted on the bushing (1-4). The pull button (5-3) is movably mounted on the lower arm (1-3). The upper end of the pull rope is fixedly connected to the pawl (5-2), and the lower end is fixedly connected to the pull button (5-3).

5. A lifting device for a fan-shaped thrust bearing according to claim 4, characterized in that: The rigid boom (1) is made of thick-walled tube, and the traction rope is installed along the rigid boom (1) and passes through its internal cavity.

6. A lifting device for a fan-shaped thrust bearing according to claim 1, characterized in that: The flexible safety mechanism (4) includes a flexible chain (4-1) and an electromagnet (4-2). The flexible chain (4-1) is suspended at the end of the rotating shaft (2), and the electromagnet (4-2) is suspended at the end of the flexible chain (4-1).

7. A lifting device for a fan-shaped thrust bearing according to claim 6, characterized in that: The flexible chain (4-1) is made of high-strength circular chain or steel wire rope.

8. A lifting device for a fan-shaped thrust bearing according to claim 7, characterized in that: The electromagnet (4-2) includes a housing (4-2-1), in which a power supply and a DC suction cup electromagnet are integrated. A lifting ring and an electromagnet switch are provided on the top surface of the housing (4-2-1).

9. A lifting device for a fan-shaped thrust bearing according to claim 5 or 8, characterized in that: The rotating shaft (2) includes a connecting shaft (2-1) and a connecting ring (2-2), and the two connecting rings (2-2) are respectively set at both ends of the connecting shaft (2-1) by threads.

10. A lifting device for a fan-shaped thrust bearing according to claim 9, characterized in that: The lifting base (3) includes an n-shaped base (3-1) and a lifting ring (3-2), wherein the lifting ring (3-2) is movably mounted on the top plate of the n-shaped base (3-1) and can rotate freely.

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