CN111675108B - Steel construction of building and road and bridge construction usefulness lifts by crane equipment - Google Patents
Steel construction of building and road and bridge construction usefulness lifts by crane equipment Download PDFInfo
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- CN111675108B CN111675108B CN202010562309.5A CN202010562309A CN111675108B CN 111675108 B CN111675108 B CN 111675108B CN 202010562309 A CN202010562309 A CN 202010562309A CN 111675108 B CN111675108 B CN 111675108B
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- hoisting
- wheel
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- brake
- jaw
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- 238000010276 construction Methods 0.000 title claims abstract description 24
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 12
- 239000010959 steel Substances 0.000 title claims abstract description 12
- 210000000078 claw Anatomy 0.000 claims description 24
- 238000009434 installation Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 6
- 238000001514 detection method Methods 0.000 description 5
- 230000001681 protective effect Effects 0.000 description 5
- 230000003044 adaptive effect Effects 0.000 description 2
- 239000004566 building material Substances 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
- B66C15/06—Arrangements or use of warning devices
- B66C15/065—Arrangements or use of warning devices electrical
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C15/00—Safety gear
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C5/00—Base supporting structures with legs
- B66C5/02—Fixed or travelling bridges or gantries, i.e. elongated structures of inverted L or of inverted U shape or tripods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/04—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes actuated by centrifugal force
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
- B66D5/00—Braking or detent devices characterised by application to lifting or hoisting gear, e.g. for controlling the lowering of loads
- B66D5/02—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes
- B66D5/16—Crane, lift hoist, or winch brakes operating on drums, barrels, or ropes for action on ropes or cables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses steel structure hoisting equipment for building and road and bridge construction, which comprises a hoisting frame, a mounting seat and a hoisting wheel, wherein the mounting seat is mounted at the top of the hoisting frame, the hoisting wheel is rotatably mounted in the mounting seat, a braking mechanism capable of preventing the hoisting wheel from rotating accidentally is arranged on the mounting seat, an accidental rotation limiting mechanism and a hoisting overspeed limiting mechanism are further arranged on the mounting seat, and both the accidental rotation limiting mechanism and the hoisting overspeed limiting mechanism can drive the braking mechanism to act. When the hoisting wheel rotates unexpectedly, the accidental rotation limiting mechanism can trigger the brake mechanism to act, so that the hoisting wheel stops rotating, and the construction safety is guaranteed; when the rotational speed of the hoisting wheel is overspeed, the hoisting overspeed limiting mechanism can trigger the brake mechanism to act, so that the hoisting wheel is stopped from rotating, and the construction safety is further ensured. It is suitable for construction of buildings and roads and bridges.
Description
Technical Field
The invention relates to the field of steel structure hoisting, in particular to steel structure hoisting equipment for building and road and bridge construction.
Background
At present, in the building construction and road and bridge engineering process, steel structure hoisting equipment is generally used for facilitating the transportation, construction and other construction operations of building materials, building equipment or construction platforms. However, the existing steel structure hoisting equipment has the following problems in actual use:
because the building materials, the building equipment or the construction platform and the like are heavy, the condition that the lifting wheel rotates accidentally can happen occasionally, and safety accidents can be caused.
Disclosure of Invention
The invention aims to provide steel structure hoisting equipment for building and road and bridge construction, and aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a steel construction of building and road and bridge construction usefulness lifts by crane equipment, includes gallows, mount pad and lifts by crane the wheel, the mount pad is installed the top of gallows, it installs to lift by crane the wheel can install with rotating in the mount pad, be equipped with on the mount pad and prevent lift by crane the unexpected arrestment mechanism that rotates of wheel, still be equipped with unexpected rotation limiting mechanism and lift by crane overspeed limiting mechanism on the mount pad, unexpected rotation limiting mechanism with it can drive to lift by crane overspeed limiting mechanism arrestment mechanism moves.
Furthermore, the brake mechanism comprises a clamping wheel, a clamping jaw block, a brake linkage plate reset spring, a brake block mounting seat and a hoisting line pressing brake block, the clamping wheel is rotatably mounted in the mounting seat, the clamping jaw block is rotatably mounted on the side wall of the hoisting wheel at a position corresponding to the clamping wheel, one end of the clamping jaw block is a clamping jaw matched with a clamping groove on the clamping wheel, a clamping jaw reset spring for resetting the clamping jaw is arranged between the clamping jaw and the hoisting wheel, one end of the brake linkage plate is hinged with the side wall of the clamping wheel, the other end of the brake linkage plate is provided with a brake linkage plate reset spring mounting rod, the brake linkage plate reset spring mounting rod penetrates through the upper part of the brake block mounting seat, and the brake linkage plate reset spring is sleeved on the brake plate reset spring mounting rod, the brake linkage plate reset spring mounting structure is characterized in that one end of the brake linkage plate reset spring abuts against the brake block mounting seat, the position of the other end of the brake linkage plate reset spring mounting rod corresponding to the brake linkage plate reset spring is provided with a brake linkage plate reset spring adjusting nut used for adjusting the compression degree of the brake linkage plate reset spring, the lower portion of the brake block mounting seat is hinged to the mounting seat, and the hoisting line compression brake block is mounted on the brake block mounting seat corresponding to the position of the hoisting line groove of the hoisting wheel.
Furthermore, the clamping wheel and the lifting wheel are coaxially arranged, and the lifting wire pressing brake block is movably mounted on the brake block mounting seat through a brake block mounting shaft. The hoisting line pressing brake block is movably mounted on the brake block mounting seat through the brake block mounting shaft, so that on one hand, the replacement of the hoisting line pressing brake block is facilitated, on the other hand, after the hoisting line pressing brake block is designed to be of a movable structure, the adaptive position of the hoisting line pressing brake block and the hoisting line can be automatically adjusted, and therefore the hoisting line can be more favorably compressed. The clamping wheel limiting stop lever and the clamping wheel limiting groove which are additionally arranged can limit the rotation of the clamping wheel, and meanwhile, the clamping wheel limiting stop lever and the clamping wheel limiting groove can be matched with a return spring of the braking linkage plate to adjust the pressing force of the hoisting line for pressing the brake block.
Furthermore, the accidental rotation limiting mechanism comprises a jack catch touch bolt, a driving plate, a driving electromagnetic switch and a touch bolt driving spring, the middle part of the driving plate is arranged on the mounting seat in a self-rotating manner, the jack catch touch bolt is arranged at the position, corresponding to the jack catch block, of the upper end of the driving plate, a driving arc-shaped surface matched with the jack catch touch bolt is arranged on the side wall of the jack catch block, a touch bolt driving spring used for enabling the jack catch touch bolt to be in a state of touching the driving arc-shaped surface is arranged at the upper end of the driving plate or between the jack catch touch bolt and the mounting seat, when the jack catch touch bolt touches the driving arc-shaped surface, the jack catch block is driven to rotate, the jack catch on the jack catch block can be clamped with the clamping groove on the clamping wheel, the driving electromagnetic switch is arranged on the mounting seat and corresponds to the position of the lower end of the driving plate, the movable end of the driving electromagnetic switch is hinged with the lower end of the driving plate.
Furthermore, an auxiliary hook is movably mounted on the mounting seat corresponding to the upper end of the driving plate, and a driving plate hook plate matched with the auxiliary hook is arranged at the upper end of the driving plate. When the lifting line is overhauled, the drive plate hook plate is hooked through the auxiliary hook, the claw touch bolt is far away from the claw block, at the moment, the claw block can reset under the action of the claw reset spring, so that the claw of the claw block is separated from the clamping groove on the clamping wheel, meanwhile, the lifting line pressing brake block and the brake block mounting seat can also reset under the elastic force of the brake linkage plate reset spring to loosen the pressing of the lifting line, and the lifting wheel can rotate freely, so that the later maintenance is facilitated.
Furthermore, the number of the jaw blocks is two, the two jaw blocks are respectively arranged at two sides of the circle center of the lifting wheel, the lifting overspeed limiting mechanism comprises two centrifugal blocks, two centrifugal block mounting plates, a connecting rod and a spring connecting rod, the middle parts of the two centrifugal block mounting plates are respectively rotatably mounted at the positions, corresponding to the jaw blocks, on the side wall of the lifting wheel, one end, opposite to the jaw, of each jaw block is provided with a jaw block linkage rod, the jaw block linkage rods are abutted against the corresponding centrifugal block mounting plates through jaw block linkage adjusting bolts, the two centrifugal block mounting plates are arranged in parallel, two ends of each connecting rod are respectively and movably connected with one end of the two centrifugal block mounting plates, one end of the spring connecting rod is mounted on the side wall of the lifting wheel, and the other end of the spring connecting rod is movably connected with the other end of one of the two centrifugal block mounting plates, the two centrifugal blocks are respectively arranged on the two centrifugal block mounting plates.
Further, the spring connecting rod comprises a connecting screw rod, a connecting rod spring adjuster and a connecting rod body mounting seat, the connecting screw rod is movably inserted into the mounting portion on the side wall of the lifting wheel, the connecting rod spring is sleeved on the screw rod portion of the connecting screw rod, the connecting rod spring adjuster is also sleeved on the screw rod portion of the connecting screw rod and presses the connecting rod spring on the mounting portion on the side wall of the lifting wheel, and the end head of the screw rod portion of the connecting screw rod is movably mounted on the corresponding centrifugal block mounting plate through the connecting rod body mounting seat. The spring connecting rod is adopted to replace one connecting rod in the traditional quadrilateral connecting rod mechanism, so that the volume of the quadrilateral connecting rod mechanism can be reduced, the structure is more compact, the installation is more convenient, and meanwhile, the connecting rod spring can also be used for adjusting the action speed of the hoisting overspeed limiting mechanism.
Further, install the alarm switch on the mount pad, be equipped with switch touch bolt on the lateral wall of centrifugation piece, the mount pad is assembled by mount pad body and mount pad branch board and is formed. The mounting seat is designed into a split structure, so that the mounting and dismounting of each part are facilitated. And a protective cover is arranged at the top of the lifting frame.
Compared with the prior art, the invention has the beneficial effects that:
1. when the hoisting wheel rotates unexpectedly, the accidental rotation limiting mechanism can trigger the brake mechanism to act, so that the hoisting wheel stops rotating, and the construction safety is guaranteed; when the rotating speed of the hoisting wheel is overspeed, the hoisting overspeed limiting mechanism can trigger the brake mechanism to act, so that the hoisting wheel is stopped from rotating, and the construction safety is further ensured;
2. the hoisting wire pressing brake block is movably arranged on the brake block mounting seat through the brake block mounting shaft, so that on one hand, the replacement of the hoisting wire pressing brake block is facilitated, and on the other hand, after the hoisting wire pressing brake block is designed into a movable structure, the hoisting wire pressing brake block can automatically adjust the adaptive position of the hoisting wire, thereby being more favorable for the pressing of the hoisting wire;
3. the additional clamping wheel limiting stop lever and the clamping wheel limiting groove can limit the rotation of the clamping wheel;
4. when the lifting wheel in the lifting equipment is detected to be unexpectedly rotated by the lifting wheel rotation detection sensor, the power supply of the driving electromagnetic switch is immediately cut off, the movable end of the driving electromagnetic switch can move freely, at the moment, the upper end of the driving plate can drive the clamping jaw to touch the bolt to move towards the circle center direction of the clamping wheel under the elastic force of the driving spring of the touch bolt until the clamping jaw touch bolt touches the driving arc surface of the clamping jaw block, simultaneously, the clamping jaw block can be driven to rotate along with the rotation of the lifting wheel, the clamping jaw on the clamping jaw block is clamped with the clamping groove on the clamping wheel, so that the lifting wheel can drive the clamping wheel to rotate together through the clamping jaw block, the clamping wheel can drive the braking linkage plate to move, the braking linkage plate can touch the alarm switch, the alarm is alarmed, and meanwhile, the braking linkage plate drives the upper part of the mounting seat to turn towards the lifting wheel through the braking plate return spring, so that the hoisting wire on the brake block mounting seat is pressed tightly against the brake block to press the hoisting wire in the hoisting wire wheel groove of the hoisting wheel, and the rotation of the hoisting wheel is stopped;
5. when the lifting line is overhauled, the hook plate of the driving plate is hooked through the auxiliary hook, so that the claw touches the bolt to be far away from the claw block, at the moment, the claw block can reset under the action of the claw reset spring, so that the claw of the claw block is separated from the clamping groove on the clamping wheel, meanwhile, the lifting line pressing brake block and the brake block mounting seat can reset under the elastic force of the brake linkage plate reset spring to loosen the pressing of the lifting line, and the lifting wheel can freely rotate, so that the later maintenance is facilitated;
6. the spring connecting rod is adopted to replace one connecting rod in the traditional quadrilateral connecting rod mechanism, so that the volume of the quadrilateral connecting rod mechanism can be reduced, and the structure is more compact and more convenient to mount;
7. when the rotating speed of the hoisting wheel exceeds a first alarm rotating speed, the centrifugal block can drive a quadrangle formed by two centrifugal block mounting plates, a connecting rod and a spring connecting rod to deform under the action of centrifugal force, so that a switch touch bolt on the outer side wall of the centrifugal block moves in a direction of being far away from the circle center of the hoisting wheel until the switch of the alarm is touched, and the alarm gives an alarm; if the lifting wheel continues to accelerate and reaches a second alarm rotating speed, under the action of centrifugal force, the centrifugal block can drive a quadrangle formed by two centrifugal block mounting plates, a connecting rod and a spring connecting rod to further deform, so that the centrifugal block mounting plates drive the clamping jaw blocks to rotate through the clamping jaw block linkage adjusting bolts and the clamping jaw block linkage rods, clamping jaws on the clamping jaw blocks and clamping grooves on the clamping wheel are clamped, the lifting wheel can drive the clamping wheel to rotate together through the clamping jaw blocks, the clamping wheel can drive the braking linkage plate to move, the braking linkage plate drives the upper part of the brake block mounting seat to turn towards the lifting wheel through a braking linkage plate return spring, and the lifting line on the brake block mounting seat is pressed tightly in a lifting line wheel groove of the lifting wheel so as to stop the rotation of the lifting wheel;
8. the mounting seat is designed into a split structure, so that the mounting and dismounting of each part are facilitated; meanwhile, the added protective cover can play a role in protecting the parts and prolonging the service life of the parts.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of a hoisting wheel part in an initial state of the invention.
Fig. 3 is a schematic structural diagram of the mounting seat body.
Fig. 4 is a schematic structural view of the hoisting wheel.
Fig. 5 is a side view of the structure of fig. 4.
Fig. 6 is a schematic top view of the structure of fig. 4.
Fig. 7 is a schematic structural view of the jaw block.
Fig. 8 is a schematic top view of the structure of fig. 7.
FIG. 9 is a schematic diagram of a centrifugal block.
Fig. 10 is a side view of the structure of fig. 9.
Fig. 11 is a schematic top view of fig. 9.
FIG. 12 is a schematic structural view of a centrifugal block mounting plate.
Fig. 13 is a schematic top view of the structure of fig. 12.
Fig. 14 is a schematic structural view of a connecting rod.
Fig. 15 is a schematic structural diagram of the structure when the lifting wheel rotates unexpectedly, the claw touch bolt touches the claw block and causes the claw block to be clamped with the clamping groove.
Fig. 16 is a simplified schematic of fig. 15.
FIG. 17 is a schematic view of the brake linkage plate touching the switch linkage on the alarm switch as the state of FIG. 15 continues to move.
Fig. 18 is a simplified schematic of fig. 17.
Fig. 19 is a schematic structural view illustrating the state in which the hoist wire pressing brake blocks press the hoist wire in the hoist wire pulley groove when the state in fig. 17 continues to move.
Fig. 20 is a simplified schematic of fig. 19.
Fig. 21 is a schematic structural diagram of the case where the switch touch bolt touches the alarm switch when the rotation speed of the hoisting wheel exceeds the first alarm rotation speed.
Fig. 22 is a simplified schematic of fig. 21.
Fig. 23 is a schematic structural diagram of the lifting wheel in fig. 21 when the lifting wheel continues to accelerate and reaches a second alarm rotation speed, and a quadrangle formed by two centrifugal block mounting plates, a connecting rod and a spring connecting rod further deforms, so that the centrifugal block mounting plates drive the jaw blocks to rotate through the jaw block linkage adjusting bolts and the jaw block linkage rods, and the jaws are clamped with the clamping grooves.
Fig. 24 is a simplified schematic of fig. 23.
Fig. 25 is a schematic view showing the structure in which the hoist wire pressing brake blocks press the hoist wire in the hoist wire pulley groove when the state of fig. 23 is continuously moved.
Fig. 26 is a simplified schematic of fig. 25.
Fig. 27 is a schematic top view of the structure of fig. 2.
Fig. 28 is a rear view structural diagram of fig. 2.
As shown in the figure: lifting frame 1, mounting base 2, mounting base body 21, mounting base plate 22, lifting wheel 3, lifting wheel groove 31, mounting part 32, brake mechanism 4, clamping wheel 41, clamping groove 411, clamping wheel limit stop lever 412, clamping wheel limit groove 413, clamping jaw block 42, clamping jaw 421, clamping jaw reset spring 422, driving arc 423, clamping jaw block linkage rod 424, clamping jaw block linkage adjusting bolt 425, brake linkage plate 43, brake linkage plate reset spring mounting rod 431, brake linkage plate reset spring adjusting nut 432, brake linkage plate reset spring 44, brake shoe mounting base 45, lifting line pressing brake shoe 46, brake shoe mounting shaft 461, accidental rotation limiting mechanism 5, clamping jaw touch bolt 51, driving plate 52, driving plate hook plate 521, driving electromagnetic switch 53, touch bolt driving spring 54, lifting overspeed limiting mechanism 6, centrifugal block 61, centrifugal block mounting plate 62, the device comprises a connecting rod 63, a spring connecting rod 64, a connecting rod body 641, a connecting rod spring 642, a connecting rod spring adjuster 643, a connecting rod body mounting seat 644, a switch touch bolt 65, an alarm switch 7, a switch linkage rod 71, an auxiliary hook 8, a lifting line 9 and a protective cover 10.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, in the embodiment of the present invention, a steel structure hoisting device for building and road and bridge construction includes a hoisting frame 1, a mounting seat 2 and a hoisting wheel 3, wherein the mounting seat 2 is mounted at the top of the hoisting frame 1, the hoisting wheel 3 is rotatably mounted in the mounting seat 2, a braking mechanism 4 capable of preventing the hoisting wheel 3 from rotating accidentally is disposed on the mounting seat 2, an accidental rotation limiting mechanism 5 and a hoisting overspeed limiting mechanism 6 are further disposed on the mounting seat 2, and both the accidental rotation limiting mechanism 5 and the hoisting overspeed limiting mechanism 6 can drive the braking mechanism 4 to operate. When the lifting wheel 3 rotates accidentally, the accidental rotation limiting mechanism 5 can trigger the brake mechanism 4 to act, so that the lifting wheel 3 stops rotating, and the construction safety is guaranteed; when the rotational speed of the hoisting wheel 3 is overspeed, the hoisting overspeed limiting mechanism 6 can trigger the brake mechanism 4 to act, so that the hoisting wheel 3 is stopped to rotate, and the construction safety is further ensured.
The braking mechanism 4 comprises a clamping wheel 41, a clamping claw block 42, a braking linkage plate 43, a braking linkage plate return spring 44, a brake block mounting seat 45 and a hoisting line pressing brake block 46; the clamp wheel 41 is rotatably mounted in the mounting base 2, the jaw block 42 is rotatably mounted on the side wall of the hoisting wheel 3 at a position corresponding to the clamp wheel 41, one end of the jaw block 42 is a jaw 421 matched with a clamp groove 411 on the clamp wheel 41, and a jaw return spring 422 for returning the jaw 421 is arranged between the jaw 421 and the hoisting wheel 3; one end of the brake linkage plate 43 is hinged with the side wall of the clamping wheel 41, the other end of the brake linkage plate 43 is provided with a brake linkage plate return spring mounting rod 431, the brake linkage plate return spring mounting rod 431 penetrates through the upper part of the brake block mounting seat 45, the brake linkage plate return spring 44 is sleeved on the brake linkage plate return spring mounting rod 431, one end of the brake linkage plate return spring 44 is abutted against the brake block mounting seat 45, a brake linkage plate return spring adjusting nut 432 for adjusting the compression degree of the brake linkage plate return spring 44 is arranged on the position, corresponding to the other end of the brake linkage plate return spring 44, of the brake linkage plate return spring mounting rod 431, the lower part of the brake block mounting seat 45 is hinged on the mounting seat 2, and the hoisting wire pressing brake block 46 is mounted on the brake block mounting seat 45 at a position corresponding to the hoisting wire wheel groove 31 of the hoisting wheel 3.
The clamp wheel 41 is coaxially disposed with the hoist wheel 3, and the hoist wire pressing brake 46 is movably mounted on the brake mounting base 45 through a brake mounting shaft 461. The hoisting wire pressing brake block 46 is movably mounted on the brake block mounting seat 45 through the brake block mounting shaft 461, so that on one hand, the replacement of the hoisting wire pressing brake block 46 is facilitated, and on the other hand, after the hoisting wire pressing brake block 46 is designed into a movable structure, the hoisting wire pressing brake block 46 can be automatically adjusted to be matched with the hoisting wire 9, and the compression of the hoisting wire 9 is facilitated. A clamping wheel limiting stop lever 412 is arranged on the mounting seat 2 corresponding to the side wall of the clamping wheel 41, a clamping wheel limiting groove 413 matched with the clamping wheel limiting stop lever 412 is arranged on the side wall of the clamping wheel 41, and the clamping wheel limiting stop lever 412 is located in the clamping wheel limiting groove 413. The additional wheel clamping limiting stop lever 412 and the wheel clamping limiting groove 413 can limit the rotation of the wheel clamping 41, and meanwhile, the wheel clamping limiting stop lever 412 and the wheel clamping limiting groove 413 can also cooperate with the brake linkage plate return spring 44 to adjust the pressing force of the hoisting line for pressing the brake block 46.
The above-mentioned unexpected rotation restriction mechanism 5 includes a jaw touch bolt 51, a driving plate 52, a driving electromagnetic switch 53 and a touch bolt driving spring 54; the middle part of the driving plate 52 is rotatably mounted on the mounting base 2, the jaw touch bolt 51 is mounted at the upper end of the driving plate 52 at a position corresponding to the jaw block 42, a driving arc surface 423 matched with the jaw touch bolt 51 is arranged on the side wall of the jaw block 42, a touch bolt driving spring 54 for enabling the jaw touch bolt 51 to be in a state of touching the driving arc surface 423 is arranged at the upper end of the driving plate 52 or between the jaw touch bolt 51 and the mounting base 2, and when the jaw touch bolt 51 touches the driving arc surface 423, the jaw touch bolt can drive the jaw block 42 to rotate and enable the jaw 421 on the jaw block 42 to be clamped with the clamping groove 411 on the clamping wheel 41; the driving electromagnetic switch 53 is installed on the installation seat 2 corresponding to the lower end of the driving plate 52, the movable end of the driving electromagnetic switch 53 is hinged to the lower end of the driving plate 52, the driving electromagnetic switch 53 is electrically connected with a lifting wheel accidental rotation detection sensor in lifting equipment, the lifting wheel accidental rotation detection sensor is in the prior art (such as a displacement sensor and the like), in addition, a lifting motor of the lifting equipment can be installed on the ground and can also be installed on the lifting frame 1, the lifting motor is also in the prior art, and the description is omitted here.
In the initial state, the electromagnetic switch 53 is driven to be in the power-on attraction state, the clamping jaw block 42 is not clamped with the clamping wheel 41, and the hoisting wheel 3 can rotate freely; when the lifting wheel unexpected rotation detection sensor in the lifting equipment detects that the lifting wheel unexpectedly rotates, the power supply of the driving electromagnetic switch 53 is immediately cut off, the movable end of the driving electromagnetic switch 53 can move freely, at the moment, the upper end of the driving plate 52 can drive the jaw touch bolt 51 to move towards the circle center direction of the clamping wheel 41 under the elastic force of the touch bolt driving spring 54 until the jaw touch bolt 51 touches the driving arc-shaped surface 423 of the jaw block 42, and simultaneously, the jaw block 42 can be driven to rotate along with the rotation of the lifting wheel 3, and the jaw 421 on the jaw block 42 is clamped with the clamping groove 411 on the clamping wheel 41, so that the lifting wheel 3 can drive the clamping wheel 41 to rotate together through the jaw block 42, the clamping wheel 41 can drive the brake plate 43 to move, the brake plate 43 can touch the alarm switch 7, so that the alarm gives an alarm, and simultaneously, the brake plate 43 drives the upper part of the brake block mounting seat 45 to face towards the lifting wheel through the brake plate return spring 44 The hoisting wheel 3 is turned over, so that the hoisting wire pressing brake block 46 on the brake block mounting seat 45 presses the hoisting wire 9 in the hoisting wire wheel groove 31 of the hoisting wheel 3, and the rotation of the hoisting wheel 3 is stopped.
An auxiliary hook 8 is movably mounted on the mounting seat 2 at a position corresponding to the upper end of the driving plate 52, and a driving plate hook plate 521 matched with the auxiliary hook 8 is arranged at the upper end of the driving plate 52. During the maintenance, catch on drive plate hook plate 521 through supplementary hook 8 earlier, make jack catch touching bolt 51 keep away from jack catch piece 42, at this moment, jack catch piece 42 just can reset under jack catch reset spring 422's effect, thereby make jack catch 421 of jack catch piece 42 deviate from in the draw-in groove 411 on calorie wheel 41, and simultaneously, it compresses tightly brake block 46 and brake block mount pad 45 and also can reset under the elasticity of braking gangboard reset spring 44 and loosen the compressing tightly to playing the plumb line to play, it alright free rotation to play hanging wheel 3 like this, and then make things convenient for the maintenance in later stage.
The number of the jaw blocks 42 is two, the two jaw blocks 42 are respectively arranged at two sides of the center of the lifting wheel 3, the lifting overspeed limiting mechanism 6 comprises two centrifugal blocks 61, two centrifugal block mounting plates 62, a connecting rod 63 and a spring connecting rod 64, the middle parts of the two centrifugal block mounting plates 62 are respectively and rotatably mounted at the positions, corresponding to the jaw blocks 42, on the side wall of the lifting wheel 3, the jaw block linkage rod 424 is arranged at one end, opposite to the jaw 421, of the jaw block 42, the jaw block linkage rod 424 abuts against the corresponding centrifugal block mounting plate 62 through a jaw block linkage adjusting bolt 425, the relative position between the jaw block linkage rod 424 and the centrifugal block mounting plate 62 can be adjusted by rotating the position of a jaw block linkage adjusting bolt 425, and then the initial relative position between the jaw 421 and the clamping groove 411 can be adjusted, therefore, the rotating speed of the hoisting wheel 3 required by the action of the braking mechanism 4 triggered by the hoisting overspeed limiting mechanism 6 can be adjusted, so that a second alarm rotating speed can be set, the two centrifugal block mounting plates 62 are arranged in parallel, two ends of the connecting rod 63 are movably connected with one ends of the two centrifugal block mounting plates 62 respectively, one end of the spring connecting rod 64 is mounted on the side wall of the hoisting wheel 3, the other end of the spring connecting rod 64 is movably connected with the other end of one of the two centrifugal block mounting plates 62, and the two centrifugal blocks 61 are mounted on the two centrifugal block mounting plates 62 respectively. When the rotational speed of the hoisting wheel 3 exceeds the speed limit, the hoisting overspeed limiting mechanism 6 triggers the brake mechanism 4 to act, so that the hoisting wheel 3 stops rotating.
The spring link 64 includes a link body 641, a link spring 642, a link spring adjuster 643 and a link body mounting seat 644, the link body 641 is movably inserted into the mounting portion 32 on the side wall of the hoist wheel 3, the link spring 642 is sleeved on the screw portion of the link body 641, the link spring adjuster 643 is also sleeved on the screw portion of the link body 641 and presses the link spring 642 on the mounting portion 32 on the side wall of the hoist wheel 3, and the tip of the screw portion of the link body 641 is movably mounted on the corresponding centrifugal block mounting plate 62 through the link body mounting seat 644. By replacing one link of the conventional quadrilateral linkage with the spring link 64, the quadrilateral linkage can be downsized, the construction can be made more compact and convenient to install, and the link spring 54 can be used to adjust the operating speed of the hoisting overspeed limiting mechanism. Install alarm switch 7 on mount pad 2, alarm switch 7 is connected with the alarm electricity, and the alarm can be installed on construction operation control cabinet, also can install in other positions, be equipped with switch touch bolt 65 on the lateral wall of centrifugation piece 61. The alarm switch 7 is provided with a switch linkage rod 71, so that the brake linkage plate 43 can be conveniently touched.
When the rotating speed of the hoisting wheel 3 is in a normal rotating speed range, the switch touch bolt 65 on the outer side wall of the centrifugal block 61 does not touch the alarm switch 7, and when the rotating speed of the hoisting wheel 3 exceeds a first alarm rotating speed (the first alarm rotating speed can be adjusted according to the installation position of the switch touch bolt 65 on the centrifugal block 61), the centrifugal block 61 drives the quadrilateral deformation formed by the two centrifugal block installation plates 62, the connecting rod 63 and the spring connecting rod 64 under the action of centrifugal force, so that the switch touch bolt 65 on the outer side wall of the centrifugal block 61 moves in a direction which is far away from the center of the hoisting wheel 3 until the switch 7 of the alarm is touched, and the alarm gives an alarm; if the lifting wheel 3 continues to accelerate and reaches the second alarm rotation speed, under the action of centrifugal force, the centrifugal block 61 drives the quadrangle formed by the two centrifugal block mounting plates 62, the connecting rod 63 and the spring connecting rod 64 to further deform, so that the centrifugal block mounting plates 62 drive the jaw blocks 42 to rotate through the jaw block linkage adjusting bolts 425 and the jaw block linkage rods 424, and the jaws 421 on the jaw blocks 42 are clamped with the clamping grooves 411 on the clamping wheels 41, so that the lifting wheel 3 drives the clamping wheels 41 to rotate together through the jaw blocks 42, the clamping wheels 41 drive the brake linkage plates 43 to move, the brake linkage plates 43 drive the upper parts of the brake block mounting seats 45 to turn towards the lifting wheel 3 through the brake linkage plate return springs 44, and the lifting line pressing brake blocks 46 on the brake block mounting seats 45 press the lifting lines 9 in the lifting wheel grooves 31 of the lifting wheel 3, and the rotation of the hoisting wheel 3 is stopped.
The mounting seat 2 is formed by assembling a mounting seat body 21 and a mounting seat sub-plate 22. The mounting seat 2 is designed into a split structure, so that the mounting and dismounting of various parts are facilitated. The top of the lifting frame 1 is provided with a protective cover 10, and the protective cover 10 can protect the parts and prolong the service life of the parts.
The working principle of the lifting equipment is as follows:
in the initial state, the driving electromagnetic switch 53 is in the power-on attraction state, the jaw block 42 is not clamped with the clamping wheel 41, the hoisting wheel 3 can rotate freely, and meanwhile, the alarm switch 7 is also in the disconnection state.
When the hoisting device hoists the hoisted object to a specified height and suspends the object immovably, if the unexpected rotation detection sensor of the hoisting wheel in the hoisting device detects that the hoisting wheel rotates unexpectedly, the power supply of the driving electromagnetic switch 53 is immediately cut off, the movable end of the driving electromagnetic switch 53 can move freely, at this time, the upper end of the driving plate 52 can drive the jaw touch bolt 51 to move towards the circle center direction of the clamping wheel 41 under the elastic force of the touch bolt driving spring 54 until the jaw touch bolt 51 touches the driving arc surface 423 of the jaw block 42, and simultaneously the jaw block 42 can be driven to rotate along with the rotation of the hoisting wheel 3, and the jaw 421 on the jaw block 42 is clamped with the clamping groove 411 on the clamping wheel 41, so that the hoisting wheel 3 can rotate together with the clamping wheel 41 through the jaw block 42, the clamping wheel 41 can drive the brake linkage plate 43 to move, the brake plate 43 can touch the switch linkage rod 71 on the alarm linkage switch 7, the alarm is electrified to give an alarm, and meanwhile, the brake linkage plate 43 drives the upper part of the brake block mounting seat 45 to turn towards the hoisting wheel 3 through the brake linkage plate return spring 44, so that the hoisting line on the brake block mounting seat 45 presses the brake block 46 tightly to press the hoisting line 9 in the hoisting line groove 31 of the hoisting wheel 3, and further, the rotation of the hoisting wheel 3 is stopped.
When the hoisting wheel 3 is hoisted normally and the rotating speed thereof is within the normal rotating speed range, the switch touch bolt 65 on the outer side wall of the centrifugal block 61 does not touch the alarm switch 7.
When an accident occurs and the rotating speed of the hoisting wheel 3 exceeds the first alarm rotating speed, the centrifugal block 61 drives the quadrilateral deformation formed by the two centrifugal block mounting plates 62, the connecting rod 63 and the spring connecting rod 64 to deform under the action of centrifugal force, so that the switch touch bolt 65 on the outer side wall of the centrifugal block 61 moves in the direction which is far away from the circle center of the hoisting wheel 3 until the switch 7 of the alarm is touched, and the alarm gives an alarm; if the lifting wheel 3 continues to accelerate and reaches the second alarm rotation speed, under the action of centrifugal force, the centrifugal block 61 drives the quadrangle formed by the two centrifugal block mounting plates 62, the connecting rod 63 and the spring connecting rod 64 to further deform, so that the centrifugal block mounting plates 62 drive the jaw blocks 42 to rotate through the jaw block linkage adjusting bolts 425 and the jaw block linkage rods 424, and the jaws 421 on the jaw blocks 42 are clamped with the clamping grooves 411 on the clamping wheels 41, so that the lifting wheel 3 drives the clamping wheels 41 to rotate together through the jaw blocks 42, the clamping wheels 41 drive the brake linkage plates 43 to move, the brake linkage plates 43 drive the upper parts of the brake block mounting seats 45 to turn towards the lifting wheel 3 through the brake linkage plate return springs 44, and the lifting line pressing brake blocks 46 on the brake block mounting seats 45 press the lifting lines 9 in the lifting wheel grooves 31 of the lifting wheel 3, and the rotation of the hoisting wheel 3 is stopped.
During the maintenance, catch on drive plate hook plate 521 through supplementary hook 8 earlier, make jack catch touching bolt 51 keep away from jack catch piece 42, at this moment, jack catch piece 42 just can reset under jack catch reset spring 422's effect, thereby make jack catch 421 of jack catch piece 42 deviate from in the draw-in groove 411 on calorie wheel 41, and simultaneously, it compresses tightly brake block 46 and brake block mount pad 45 and also can reset under the elasticity of braking gangboard reset spring 44 and loosen the compressing tightly to playing the plumb line to play, it alright free rotation to play hanging wheel 3 like this, and then make things convenient for the maintenance in later stage.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention without departing from the spirit and scope of the invention.
Claims (1)
1. A steel structure hoisting device for building and road and bridge construction comprises a hoisting frame (1), a mounting seat (2) and hoisting wheels (3), wherein the mounting seat (2) is mounted at the top of the hoisting frame (1), and the hoisting wheels (3) are mounted in the mounting seat (2) in a self-rotating manner, and the steel structure hoisting device is characterized in that a braking mechanism (4) capable of preventing the hoisting wheels (3) from rotating accidentally is arranged on the mounting seat (2), an accidental rotation limiting mechanism (5) and a hoisting overspeed limiting mechanism (6) are further arranged on the mounting seat (2), and the accidental rotation limiting mechanism (5) and the hoisting overspeed limiting mechanism (6) can both drive the braking mechanism (4) to act;
the brake mechanism (4) comprises a clamping wheel (41), a jaw block (42), a brake linkage plate (43), a brake linkage plate reset spring (44), a brake block mounting seat (45) and a hoisting line pressing brake block (46), the clamping wheel (41) is rotatably mounted in the mounting seat (2), the jaw block (42) is rotatably mounted on the side wall of the hoisting wheel (3) corresponding to the position of the clamping wheel (41), one end of the jaw block (42) is a jaw (421) matched with a clamping groove (411) on the clamping wheel (41), a jaw reset spring (422) used for resetting the jaw (421) is arranged between the jaw (421) and the hoisting wheel (3), one end of the brake linkage plate (43) is hinged with the side wall of the clamping wheel (41), and the other end of the brake linkage plate (43) is provided with a brake linkage plate reset spring mounting rod (431), the brake linkage plate return spring mounting rod (431) penetrates through the upper part of the brake block mounting seat (45), the brake linkage plate return spring (44) is sleeved on the brake linkage plate return spring mounting rod (431), one end of the brake linkage plate return spring (44) is propped against the brake block mounting seat (45), a brake linkage plate return spring adjusting nut (432) for adjusting the compression degree of the brake linkage plate return spring (44) is arranged on the position, corresponding to the other end of the brake linkage plate return spring (44), of the brake linkage plate return spring mounting rod (431), the lower part of the brake block mounting seat (45) is hinged on the mounting seat (2), the hoisting wire pressing brake block (46) is arranged on the brake block mounting seat (45) at a position corresponding to the hoisting wire wheel groove (31) of the hoisting wheel (3); the clamp wheel (41) and the hoisting wheel (3) are coaxially arranged, the hoisting line pressing brake block (46) is movably mounted on the brake block mounting seat (45) through a brake block mounting shaft (461), a clamp wheel limiting stop lever (412) is arranged on the mounting seat (2) corresponding to the side wall of the clamp wheel (41), a clamp wheel limiting groove (413) matched with the clamp wheel limiting stop lever (412) is formed in the side wall of the clamp wheel (41), and the clamp wheel limiting stop lever (412) is located in the clamp wheel limiting groove (413);
the accidental rotation limiting mechanism (5) comprises a claw touch bolt (51), a driving plate (52), a driving electromagnetic switch (53) and a touch bolt driving spring (54), the middle part of the driving plate (52) is rotatably installed on the mounting seat (2), the claw touch bolt (51) is installed at the position, corresponding to the claw block (42), of the upper end of the driving plate (52), a driving arc-shaped surface (423) matched with the claw touch bolt (51) is arranged on the side wall of the claw block (42), a touch bolt driving spring (54) used for enabling the claw touch bolt (51) to be in a state of touching the driving arc-shaped surface (423) is arranged at the upper end of the driving plate (52) or between the claw touch bolt (51) and the mounting seat (2), and when the claw touch bolt (51) touches the driving arc-shaped surface (423), the driving device comprises a driving electromagnetic switch (53), a clamping wheel (41), a clamping jaw (421) and a clamping jaw block (42), wherein the clamping jaw block (42) is driven to rotate, the clamping jaw (411) on the clamping wheel (41) can be clamped, the driving electromagnetic switch (53) is installed on the installation seat (2) and corresponds to the lower end of a driving plate (52), and the movable end of the driving electromagnetic switch (53) is hinged with the lower end of the driving plate (52); an auxiliary hook (8) is movably mounted on the mounting seat (2) corresponding to the upper end of the driving plate (52), and a driving plate hook plate (521) matched with the auxiliary hook (8) is arranged at the upper end of the driving plate (52);
the number of the jaw blocks (42) is two, the two jaw blocks (42) are respectively arranged at two sides of the circle center of the hoisting wheel (3), the hoisting overspeed limiting mechanism (6) comprises two centrifugal blocks (61), two centrifugal block mounting plates (62), a connecting rod (63) and a spring connecting rod (64), the middle parts of the two centrifugal block mounting plates (62) are respectively and rotatably mounted at the positions, corresponding to the jaw blocks (42), on the side wall of the hoisting wheel (3), the jaw blocks (42) are provided with jaw block linkage rods (424) at the ends opposite to the jaws (421), the jaw block linkage rods (424) are abutted to the corresponding centrifugal block mounting plates (62) through jaw block linkage adjusting bolts (425), the two centrifugal block mounting plates (62) are arranged in parallel, and the two ends of the connecting rod (63) are respectively movably connected with one ends of the two centrifugal block mounting plates (62), one end of the spring connecting rod (64) is installed on the side wall of the hoisting wheel (3), the other end of the spring connecting rod (64) is movably connected with the other end of one of the two centrifugal block installation plates (62), and the two centrifugal blocks (61) are respectively installed on the two centrifugal block installation plates (62);
the spring connecting rod (64) comprises a connecting rod body (641), a connecting rod spring (642), a connecting rod spring adjuster (643) and a connecting rod body mounting seat (644), the connecting rod body (641) is movably inserted into the mounting part (32) on the side wall of the hoisting wheel (3), the connecting rod spring (642) is sleeved on the screw rod part of the connecting rod body (641), the connecting rod spring adjuster (643) is also sleeved on the screw rod part of the connecting rod body (641) and presses the connecting rod spring (642) on the mounting part on the side wall of the hoisting wheel (3), and the end head of the screw rod part of the connecting rod body (641) is movably mounted on the corresponding centrifugal block mounting plate (62) through the connecting rod body mounting seat (644);
install alarm switch (7) on mount pad (2), be equipped with switch touch bolt (65) on the lateral wall of centrifugal piece (61), mount pad (2) are assembled by mount pad body (21) and mount pad minute board (22) and are formed, the top that plays gallows (1) is equipped with protection casing (10).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010562309.5A CN111675108B (en) | 2020-06-18 | 2020-06-18 | Steel construction of building and road and bridge construction usefulness lifts by crane equipment |
| CN202110915654.7A CN113526356A (en) | 2020-06-18 | 2020-06-18 | Steel structure hoisting equipment and method for building and road and bridge construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010562309.5A CN111675108B (en) | 2020-06-18 | 2020-06-18 | Steel construction of building and road and bridge construction usefulness lifts by crane equipment |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110915654.7A Division CN113526356A (en) | 2020-06-18 | 2020-06-18 | Steel structure hoisting equipment and method for building and road and bridge construction |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111675108A CN111675108A (en) | 2020-09-18 |
| CN111675108B true CN111675108B (en) | 2021-12-28 |
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|---|---|---|---|
| CN202010562309.5A Expired - Fee Related CN111675108B (en) | 2020-06-18 | 2020-06-18 | Steel construction of building and road and bridge construction usefulness lifts by crane equipment |
| CN202110915654.7A Pending CN113526356A (en) | 2020-06-18 | 2020-06-18 | Steel structure hoisting equipment and method for building and road and bridge construction |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110915654.7A Pending CN113526356A (en) | 2020-06-18 | 2020-06-18 | Steel structure hoisting equipment and method for building and road and bridge construction |
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Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB542532A (en) * | 1939-07-25 | 1942-01-14 | Westinghouse Electric Int Co | Improvements in or relating to elevator safety governors |
| KR20040029816A (en) * | 2002-10-02 | 2004-04-08 | 신석희 | A governor of elevator apparatus |
| CN202558407U (en) * | 2012-05-14 | 2012-11-28 | 西继迅达（许昌）电梯有限公司 | Lift speed limiting device |
| CN203529648U (en) * | 2013-11-07 | 2014-04-09 | 宁波赛富特电梯部件有限公司 | Bi-directional speed limiter |
| CN204434018U (en) * | 2015-02-03 | 2015-07-01 | 合肥工业大学 | A kind of elevator governor |
| CN204549707U (en) * | 2015-03-31 | 2015-08-12 | 西继迅达（许昌）电梯有限公司 | There is the unidirectional automatic anti-running car velocity limiter of ratchet auto-reset function |
| CN206783054U (en) * | 2017-05-25 | 2017-12-22 | 苏州尼隆电梯部件有限公司 | Elevator governor for car accidental movement |
| CN108910652B (en) * | 2018-10-15 | 2019-09-27 | 苏州莱茵电梯股份有限公司 | Single rope elevator governor |
-
2020
- 2020-06-18 CN CN202010562309.5A patent/CN111675108B/en not_active Expired - Fee Related
- 2020-06-18 CN CN202110915654.7A patent/CN113526356A/en active Pending
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| CN111675108A (en) | 2020-09-18 |
| CN113526356A (en) | 2021-10-22 |
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Effective date of registration: 20211208 Address after: 075000 No.16, dongjiaqiao North Lane, Xuanhua District, Zhangjiakou City, Hebei Province Applicant after: Che Jianfang Address before: 430000 No. 176, Fazhan Avenue, Jianghan District, Wuhan City, Hubei Province Applicant before: Wang Cheng |
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