CN108680377B - Electric hoist energy efficiency test stand without installation - Google Patents
Electric hoist energy efficiency test stand without installation Download PDFInfo
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- CN108680377B CN108680377B CN201810777599.8A CN201810777599A CN108680377B CN 108680377 B CN108680377 B CN 108680377B CN 201810777599 A CN201810777599 A CN 201810777599A CN 108680377 B CN108680377 B CN 108680377B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B50/00—Energy efficient technologies in elevators, escalators and moving walkways, e.g. energy saving or recuperation technologies
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The electric hoist energy efficiency test bed free of installation comprises support legs which are arranged in parallel at intervals, wherein support plates are arranged on the inner sides of the two support legs, a main beam is arranged on each support plate, and an upper pulley is arranged at the middle position of the upper part of each main beam; the electric hoist is arranged on the traveling rack through a wedge-shaped cushion block; the lower pulley is installed to the below that is located the girder, and the side pulley is installed to the below of electric block, and the side pulley is located one side of lower pulley, and electric block draws forth the lifting hook, still includes the weight subassembly of installing in the pit, and wire rope passes the hanging hole of weight subassembly and loops through the hanging hole, walk around upper pulley, lower pulley, side pulley, finally is connected to on the lifting hook. Through ingenious design electric block's mounted position, simplified the structure, make its pit area little, installation and dismantlement and convenient, need not professional installation team, improved operational reliability greatly.
Description
Technical Field
The application relates to the technical field of test devices, in particular to an energy efficiency test bed for an electric hoist without installation.
Background
At present, the electric hoist test bed is basically a four-beam four-leg bridge type test bed, namely the test bed consists of two main beams, two end beams and four supporting legs, wherein the two end beams are connected to the supporting legs through welding or bolts, the two main beams are lapped on the two end beams and fixed through bolts, trolley rails are arranged on the upper sides of the two main beams, I-steel is welded on the lower sides of the two main beams, and the four main beams and the rails are all in the air through supporting leg frames. Before the electric hoist tests, the trolley type electric hoist needs to be hung above the main beams by a crane of a test workshop and is arranged on the rails on the upper sides of the two main beams; the suspended electric hoist is required to be hung below the main beam by a crane in a test workshop, and a running trolley of the electric hoist is arranged on I-steel at the lower side of the main beam.
From the structure of the traditional electric hoist test bed and the installation mode of the electric hoist, the traditional electric hoist test bed and the test technology have the following defects:
(1) The test bed mechanism is complex
The test bed consists of two main beams, two end beams, four supporting legs, an upper rail and a lower rail, wherein the main beams are welded pentagonal box-shaped beams, trolley rails are welded above the box-shaped beams or fixed by bolt pressing plates, I-steel is welded below the main beams to serve as rails for hanging the electric hoist running trolley, and the two ends of the main beams are variable in section along a Z axis; the end beam is welded on the supporting leg through bolts or is also a box beam; the main beam bolt is fixed on the end beam; the support leg is a cylindrical or welded rectangular box beam support leg.
(2) Requiring pit and pre-burying
The landing leg is for bearing and stability, and embedded part needs to be made to the landing leg below.
In order to meet the lifting height of the electric hoist, the height of the hoist test bed is required to be 9-11 meters, and in order to meet the height of a test shop and the lifting height of a hoisting crane, and in order to install and test personnel in the up-down aspect, the lower the test bed is, the better the lower the test bed is, so that a pit of a plurality of meters is required to be dug below the test bed to place weights.
(3) Electric hoist is inconvenient to install
The electric hoist is required to be hoisted to the high altitude through a crane, and is not required to be accurately mounted on a trolley track on the upper side of the main beam or hung on I-steel on the lower side of the main beam. The multi-person cooperation is needed, the procedures of bundling, lifting, installing, debugging and the like are involved, and the working at high altitude is performed, and the installation and the inconvenience are caused.
(4) Require qualified installation teams that test personnel cannot install by themselves
The electric hoist is one kind of crane and belongs to special equipment. The installation unit of the electric hoist needs a special equipment installation and reconstruction maintenance license, an installer needs to install a qualification license, and hoisting of the hoist needs a span wage license and a crane operation qualification license.
Sometimes, the installation needs to be outsourced to a professional installation company, so that the installation time is coordinated with the installation company, and the installation efficiency is greatly reduced.
(5) Low test efficiency
The early-stage installation and later-stage disassembly time of the test is long, more than 90% of the time is used for the installation and disassembly of the electric hoist, and the test efficiency is low. If the operator is calculated to wait for the installation company dispatcher to arrive at the site for installation and removal, the test efficiency is further disarmed.
(6) High test cost
The cost of the test bed is high, the test installation cost is high, and the test time cost is high.
(7) The test stand has poor universality
The trolley rail on the upper side of the main beam of the test bed is welded or a welding pressing plate is fixed on the main beam, and the specification cannot be changed; i-steel on the lower side of the main beam is welded on the lower side of the main beam, and the specification cannot be changed; a novel electric hoist test suspended on a lower flange plate of a box beam and the like; the electric hoist tonnage and the lifting height are different, the trolley gauge is also different, the traditional electric hoist gauge cannot be changed, some main beams can move along the end beams, the gauge is changed in a small range, but the electric hoist gauge is complex, and the efficiency is extremely low.
(8) High risk of test
The installer and the test personnel all need the high altitude construction, climb and climb down, have the high altitude risk of falling.
Disclosure of Invention
The inventor provides the electric block energy efficiency test bed which is free of installation and reasonable in structure aiming at the defects in the prior art, so that the structure is simplified, the pit area is small, the installation and the disassembly are convenient, and a professional installation team is not needed.
The technical scheme adopted by the application is as follows:
the electric hoist energy efficiency test bed free of installation comprises support legs which are arranged in parallel at intervals, wherein support plates are arranged on the inner sides of the two support legs, a main beam is arranged on each support plate, and an upper pulley is arranged at the middle position of the upper part of each main beam; the electric hoist is arranged on the trolley track through a wedge-shaped cushion block; the lower pulley is installed to the below that is located the girder, the side pulley is installed to the below of electric block, the side pulley is located one side of lower pulley, the lifting hook has been drawn forth to electric block, still includes the weight subassembly of installing in the pit, and wire rope passes the hanging hole of weight subassembly and loops through the hanging hole, walks around upper pulley, lower pulley, side pulley, finally connects to the lifting hook.
As a further improvement of the above technical scheme:
the mounting structure of the upper pulley is as follows: the flange bottom plate is installed on the upper portion of the flange top plate through a fixing bolt and a locking nut, a pulley support is installed in the middle of the flange bottom plate, an upper pulley is installed on the upper portion of the pulley support through a pulley shaft, and an end cover is installed at the end portion of the upper pulley.
The upper pulley, the lower pulley and the side pulley have the same structure.
The middle part of the weight component is provided with a suspender, and the upper part of the suspender is provided with a hanging hole.
The running bench is provided with two groups at parallel intervals, and the structure of each group is: the wheel assembly comprises a wheel assembly panel welded at the lower part of a running rack, a wheel shaft is arranged below the wheel assembly panel, a wheel is arranged on the wheel shaft, a wheel rim is arranged beside the wheel, side plates are respectively arranged on the wheel shafts at two ends of the wheel, and the end parts of the wheel shaft are locked through large nuts.
The lower end of the supporting plate is fixed on the ground embedded part through a flange by using a high-strength bolt, the upper end of the supporting plate is welded with a half-circumference sector supporting plate along the circumferential direction of the cylinder, and the lower part of the supporting plate is welded with a reinforcing rib along the axial direction of the cylinder.
The main beam is a rectangular welding box beam.
The beneficial effects of the application are as follows:
the application has compact and reasonable structure and convenient operation, simplifies the structure by skillfully designing the installation position of the electric hoist, ensures that the pit area is small, the installation and the disassembly are convenient, does not need professional installation team, and greatly improves the working reliability.
Meanwhile, the method also has the following advantages:
firstly, the structure is simple
The single-beam double-column structure is adopted, the main beam adopts a rectangular welding box-shaped beam with equal cross section, the upper part and the lower part are free of welding tracks, pentagonal cross sections are not needed, the end parts are not needed to be changed in cross section along the Z-axis direction, and the manufacturing and the assembling of the test bed are greatly reduced.
(II) pit area is small
The pit area of the traditional electric hoist test bed and the projection area of the rectangle formed by the main beam and the end beam only need to meet the placement space of weights, lower pulleys and side pulleys.
(III) mounting and dismounting and convenience thereof
The electric hoist is placed on the running rack without installation, and in order to prevent rolling, only a wedge-shaped cushion block is placed on the left side and the right side of two ends of the electric hoist respectively, and the electric hoist is directly lifted after the experiment is finished.
Fourth, no specialized installation team is required
The electric hoist test does not need to be installed and disassembled, and professional qualified installation companies and installation personnel are not needed.
(V) high test efficiency
The test device does not need to be installed or detached, does not need to be climbed up or down by test personnel, does not need to wait for or coordinate with an installation team, so that test preparation time is saved, test efficiency is greatly improved, and test time is shortened by more than 90%.
Sixth, the test cost is low
The test bed has low manufacturing cost, small pit engineering amount, no need of installation and disassembly, small workload of test personnel and high test efficiency, and the test cost is greatly reduced by combining.
(seventh) test stand general-purpose type is good
The test bed can be suitable for all types of electric hoist, and track gauge, track type, electric hoist length etc. are all unrestricted.
Eighth, safe and reliable
The electric hoist is placed on the shorter operation rack of height, and operation rack track is subaerial, and test personnel's all operations are all gone on subaerial to there is not electric hoist's installation and dismantlement. The risk during the test is less.
Ninth, the device is particularly suitable for energy efficiency test and delivery test of electric hoist
The energy efficiency test and the delivery test of the electric hoist are mainly tests of a lifting mechanism, and a trolley is not required to run, so that the test bed is particularly suitable for use.
Drawings
Fig. 1 is a front view of the present application.
FIG. 2 is a side view of FIG. 1
Fig. 3 is a top view of fig. 1.
Fig. 4 is a schematic view of the installation of the upper pulley of the present application.
Figure 5 is a schematic view of the installation of the weight assembly of the present application.
Fig. 6 is a schematic view of the installation of the wheel assembly of the present application.
Wherein: 1. a support leg; 2. a main beam; 3. an upper pulley; 4. a support plate; 5. reinforcing ribs; 6. a trolley track; 7. a running rack; 8. wedge-shaped cushion blocks; 9. a weight assembly; 10. a wire rope; 11. a lower pulley; 12. a side pulley; 13. a pit; 14. an electric hoist; 15. a lifting hook; 16. a flange top plate; 17. a flange bottom plate; 18. a fixing bolt; 19. a lock nut; 20. a pulley support; 21. a pulley shaft; 22. an end cap; 23. a boom; 24. a hanging hole; 25. a wheel axle; 26. a large nut; 27. a side plate; 28. a rim; 29. a wheel; 30. a wheel set panel.
Detailed Description
The following describes specific embodiments of the present application with reference to the drawings.
As shown in fig. 1, 2 and 3, the installation-free electric hoist energy efficiency test stand of the embodiment comprises support legs 1 arranged in parallel at intervals, support plates 4 are arranged on the inner sides of the two support legs 1, a main beam 2 is arranged on the support plates 4, and an upper pulley 3 is arranged at the middle position of the upper part of the main beam 2; the electric hoist is characterized by further comprising a trolley track 6 arranged on the ground on the side surface of the hoist platform, wherein an operation platform frame 7 is arranged on the trolley track 6, and an electric hoist 14 is arranged on the operation platform frame 7 through a wedge-shaped cushion block 8; the lower pulley 11 is arranged below the main beam 2, the side pulley 12 is arranged below the electric hoist 14, the side pulley 12 is arranged beside the lower pulley 11, the electric hoist 14 is led out of the lifting hook 15, the electric hoist further comprises a weight assembly 9 arranged in the pit 13, and the steel wire rope 10 passes through a hanging hole 24 of the weight assembly 9 and sequentially passes through the hanging hole 24, bypasses the upper pulley 3, the lower pulley 11 and the side pulley 12 and is finally connected to the lifting hook 15.
As shown in fig. 4, the installation structure of the upper pulley 3 is: the flange comprises a flange top plate 16, wherein a flange bottom plate 17 is arranged on the upper part of the flange top plate 16 through a fixing bolt 18 and a locking nut 19, a pulley support 20 is arranged in the middle of the flange bottom plate 17, an upper pulley 3 is arranged on the upper part of the pulley support 20 through a pulley shaft 21, and an end cover 22 is arranged at the end part of the upper pulley 3.
The upper pulley 3, the lower pulley 11 and the side pulley 12 have the same structure.
As shown in fig. 5, the middle part of the weight assembly 9 is provided with a hanging rod 23, and the upper part of the hanging rod 23 is provided with a hanging hole 24.
As shown in fig. 6, two groups of running racks 7 are arranged in parallel at intervals, and each group has the structure: the wheel set comprises a wheel set panel 30 welded at the lower part of the running bench 7, a wheel shaft 25 is arranged below the wheel set panel 30, wheels 29 are arranged on the wheel shaft 25, rims 28 are arranged beside the wheels 29, side plates 27 are respectively arranged on the wheel shafts 25 at the two ends of the wheels 29, and the end parts of the wheel shaft 25 are locked through large nuts 26.
The lower end of the supporting plate 4 is fixed on the ground embedded part through a flange by high-strength bolts, the upper end of the supporting plate is welded with the half-circumference sector-shaped supporting plate 4 along the circumferential direction of the cylinder, and the lower part of the supporting plate 4 is welded with the reinforcing ribs 5 along the axial direction of the cylinder.
The main beam 2 is a rectangular welded box beam.
The test bed adopts a two-leg one-beam structure, the electric hoist 14 does not need to be mounted on the test bed, and only needs to be placed on a movable platform on the ground, and the mechanism of the test bed is convenient. The test bed mainly comprises: the device comprises a supporting leg 1, a main beam 2, an upper pulley 3, a trolley track 6, a running rack 7, a weight assembly 9, a steel wire rope system 10, a lower pulley 11 and a side pulley 12.
The number of the supporting legs 1 is two, and the structure is cylindrical; the main beam 2 is provided with one rectangular welding box-shaped beam; the trolley track 6 is on the ground.
The support legs 1 are of cylindrical structures, the support legs 1 are arranged at the two ends of the main beam 2 respectively, the lower ends of the support legs 1 are fixed on the ground embedded part through flanges by high-strength bolts, the upper ends of the support legs are welded with a half-circumference sector support plate 4 along the circumferential direction of the cylinder, the lower ends of the support plates 4 are welded with reinforcing ribs 5 along the axial direction of the cylinder, the strength of the support plates 4 is reinforced by the reinforcing ribs 5, and the main beam 2 is welded on the support plates 4; the main beams 2 are rectangular welding box-shaped beams, and two ends of each main beam are welded on the supporting plate 4; the upper pulley 3 consists of a pulley body, a flange top plate 16, a flange bottom plate 17, fixing bolts 18, locking nuts 19, a pulley support 20, a pulley shaft 21 and an end cover 22, wherein the flange top plate 16 is welded on the main beam 2, the flange bottom plate 17 is welded at the bottom end of the pulley support 20, the flange bottom plate 17 and the flange top plate 16 are connected together through the fixing bolts 18 and the locking nuts 19, the pulley shaft 21 supports the pulley and enables the pulley to rotate around the pulley shaft, the end cover 22 is positioned at two ends of the pulley shaft 21, and is regulated on two side surfaces of the pulley support 20 through bolts so as to block the pulley shaft 21 and prevent the pulley shaft 21 from axially moving; a ground 13 is dug out below the test bed and is used for placing a weight assembly 9, arranging a lower pulley 11 and a side pulley 12; the weight assembly 9 is placed in a pit and consists of a weight block, a suspender 23 and a hanging hole 24, and the weight assembly 9 is connected to a lifting device through the hanging hole 24; the lower pulley 11 and the side pulley 12 are arranged in the pit 13 as the upper pulley 3, and play a role in changing the direction of force, the lower pulley 11 is arranged below the main beam 2, and the side pulley 12 is arranged below the electric hoist 14; the steel wire rope 10 passes through the hanging hole 24, passes around the upper pulley 3, the lower pulley 11, the side pulley 12 and is finally connected to the hanging hook 15 of the electric hoist 14; the trolley tracks 6 are parallel to each other and are arranged on the ground on the side surface of the hoist platform and used for guiding and supporting the running platform 7; the running rack 7 is a trolley frame capable of running along a rail, two trolley frames are respectively used for supporting two ends of the electric hoist 14, the running rack 7 consists of conical wheels 29, rims 28, wheel side plates 27, wheel shafts 25, wheel set panels 30, fixed large nuts 26 and wedge-shaped cushion blocks 8, the wheel set panels 30 are welded on the lower side of the running rack 7, the wheel side plates 27 serve as supports of the wheel shafts 25, the wheels 29 rotate around the wheel shafts 25, and the large nuts 26 fix the wheel shafts 25 so as to prevent the wheel shafts 25 from axially moving; four wedge-shaped cushion blocks 8 are arranged on the running rack 7 and are used for supporting and fixing the electric hoist 14.
The test method of the application is as follows:
during the test, need not install electric block 14, only need put electric block 14 on operation rack 7, according to the length of electric block 14, remove operation rack 7 along trolley track 6, adjust the interval of two operation racks 7, suspension type's calabash does not have the dolly, can fill up below electric block 14 through wedge cushion 8, prevent electric block 14 roll, to electric block 14 that has the dolly frame, only need put the dolly frame on operation rack 7 can, the lifting hook 15 of electric block 14 hooks the rope end of wire rope 10 can, the lift of electric block 14, through the lift of upper pulley 3, lower pulley 11 and sideslip pulley 12 conversion weight subassembly 9, thereby realized the test of electric block 14.
The test bed can realize all test items of the electric hoist 14 except for the requirement of trolley operation, such as a load test, a lifting speed test, an energy efficiency test and the like.
The above description is intended to illustrate the application and not to limit it, the scope of which is defined by the claims, and any modifications can be made within the scope of the application.
Claims (6)
1. An exempt from to install electric block energy efficiency test bench which characterized in that: the support legs (1) are arranged in parallel at intervals, support plates (4) are arranged on the inner sides of the two support legs (1), a main beam (2) is arranged on each support plate (4), and an upper pulley (3) is arranged at the middle position of the upper part of each main beam (2); the electric hoist is characterized by further comprising a trolley track (6) arranged on the ground on the side surface of the hoist platform, wherein an operation bench (7) is arranged on the trolley track (6), and an electric hoist (14) is arranged on the operation bench (7) through a wedge-shaped cushion block (8); the lower pulley (11) is arranged below the main beam (2), the side pulley (12) is arranged below the electric hoist (14), the side pulley (12) is arranged beside the lower pulley (11), the electric hoist (14) is led out of the lifting hook (15), the electric hoist further comprises a weight assembly (9) arranged in the pit (13), and the steel wire rope (10) passes through a hanging hole (24) of the weight assembly (9) and sequentially passes through the hanging hole (24), bypasses the upper pulley (3), the lower pulley (11), the side pulley (12) and is finally connected to the lifting hook (15); the running rack (7) is provided with two groups at intervals in parallel, and the structure of each group is as follows: the wheel assembly comprises a wheel assembly panel (30) welded at the lower part of a running rack (7), a wheel shaft (25) is arranged below the wheel assembly panel (30), a wheel (29) is arranged on the wheel shaft (25), a wheel rim (28) is arranged beside the wheel (29), side plates (27) are respectively arranged on the wheel shafts (25) at the two ends of the wheel (29), and the end parts of the wheel shaft (25) are locked through large nuts (26).
2. The installation-free electric block energy efficiency test stand of claim 1, wherein: the mounting structure of the upper pulley (3) is as follows: the novel pulley support comprises a flange top plate (16), wherein a flange bottom plate (17) is arranged on the upper portion of the flange top plate (16) through a fixing bolt (18) and a locking nut (19), a pulley support (20) is arranged in the middle of the flange bottom plate (17), an upper pulley (3) is arranged on the upper portion of the pulley support (20) through a pulley shaft (21), and an end cover (22) is arranged at the end portion of the upper pulley (3).
3. The installation-free electric block energy efficiency test stand of claim 1, wherein: the upper pulley (3), the lower pulley (11) and the side pulley (12) have the same structure.
4. The installation-free electric block energy efficiency test stand of claim 1, wherein: the middle part of the weight component (9) is provided with a suspender (23), and the upper part of the suspender (23) is provided with a hanging hole (24).
5. The installation-free electric block energy efficiency test stand of claim 1, wherein: the lower end of the supporting plate (4) is fixed on the ground embedded part through a flange by using a high-strength bolt, the upper end of the supporting plate is welded with the half-circumference sector supporting plate (4) along the circumferential direction of the cylinder, and the lower part of the supporting plate (4) is welded with the reinforcing rib (5) along the axial direction of the cylinder.
6. The installation-free electric block energy efficiency test stand of claim 1, wherein: the main beam (2) is a rectangular welding box beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777599.8A CN108680377B (en) | 2018-07-16 | 2018-07-16 | Electric hoist energy efficiency test stand without installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810777599.8A CN108680377B (en) | 2018-07-16 | 2018-07-16 | Electric hoist energy efficiency test stand without installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108680377A CN108680377A (en) | 2018-10-19 |
| CN108680377B true CN108680377B (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810777599.8A Active CN108680377B (en) | 2018-07-16 | 2018-07-16 | Electric hoist energy efficiency test stand without installation |
Country Status (1)
| Country | Link |
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| CN (1) | CN108680377B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160817B (en) * | 2019-06-19 | 2024-04-16 | 江苏省特种设备安全监督检验研究院 | Boosting weight system for electric hoist test and use method thereof |
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| CN108680377A (en) | 2018-10-19 |
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