CN210037238U - Boosting weight system for electric hoist test - Google Patents
Boosting weight system for electric hoist test Download PDFInfo
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- CN210037238U CN210037238U CN201920923480.7U CN201920923480U CN210037238U CN 210037238 U CN210037238 U CN 210037238U CN 201920923480 U CN201920923480 U CN 201920923480U CN 210037238 U CN210037238 U CN 210037238U
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Abstract
The utility model relates to an electric hoist test boosting weight system, which comprises a pit with an anchoring device arranged at the bottom, and an anchor hook extending out of the top of the anchoring device; the bottom of the force increasing device is provided with a lower lifting hook connected with a ground anchor lifting hook, the top of the force increasing device extends out of the upper lifting hook, the side edge of the force increasing device extends out of the weight lifting hook, and the weight component is hung on the weight lifting hook; a steel wire rope connected with the weight lifting hook sequentially penetrates through the pulleys to realize reinforcement; during hoisting, the anchoring device, the force boosting device and the weight component are all accommodated in the pit, the upper lifting hook is hooked and protruded on the ground by the electric hoist lifting hook and moves along with the ground along the test bed, the ground anchor lifting hook is pulled up by the lower lifting hook and moves along the anchoring device, and the weight component is pulled up by the weight lifting hook and moves synchronously. The utility model discloses weight load when having reduced the electric block test has effectively realized its operation test to retrench the weight type, loading and unloading are convenient during the weight subassembly, have improved experimental speed and efficiency greatly.
Description
Technical Field
The utility model belongs to the technical field of hoisting equipment test device technique and specifically relates to an experimental reinforcement weight system of electric block.
Background
The electric hoist is used as a hoisting device, is arranged on a crown block and a gantry crane, is widely applied to occasions needing to lift or move heavy objects, such as industrial and mining enterprises, buildings, warehouse wharfs and the like, and is a necessary machine for improving the labor efficiency and the labor conditions. It is usually driven by a self-contained motor, and the lifting capacity is from hundreds of jin to hundreds of tons; because of its heavy hoisting weight, use highly, in order to ensure the security and the requisite characteristic of electric block, must carry out relevant test.
The test of the electric hoist mainly comprises a rated load test, a dynamic load test under 1.1 times of rated load and a static load test under 1.25 times of rated load; the test load is required in the test, weights are most feasible and commonly used in the prior art, weight assemblies with different weights are connected in series through a pull rod in the middle to form weight groups, and the weight groups are hung on the electric hoist lifting hook, so that various tests are carried out on the weight groups.
The problems existing in the current electric hoist load test mainly comprise:
(1) the matching weights are inefficient.
The rated tonnage of the electric hoist has many grades, namely as small as 0.1t, 0.125t, 0.16t, 0.2t, 0.25t, 0.32t, 0.4t, 0.5t, 0.63t and 0.8t, as large as multiples of 10 and multiples of 100, as shown in the following table 1; the load required by the test is rated by different times, so that the load of each test is different, and the weights need to be recombined each time. The existing method is a building block type, a group of weights are dismounted from a pull rod, and are strung on the pull rod individually according to new requirements, and finally a pull head is screwed on the pull rod; the test efficiency is very low, the test is only half an hour, but the combined weight is at least 3 hours, so that the test speed and efficiency are greatly reduced.
| 0.1 | 0.125 | 0.16 | 0.2 | 0.25 | 0.32 | 0.4 | 0.5 | 0.63 | 0.8 |
| 1 | 1.25 | 1.6 | 2 | 2.5 | 3.2 | 4 | 5 | 6.3 | 8 |
| 10 | 12.5 | 16 | 20 | 25 | 32 | 40 | 50 | 63 | 80 |
| 100 | 125 | 160 | - | - | - | - | - | - | - |
TABLE 1
(2) The workload is large.
The electric hoists with rated tonnage of 16t, 32t, 50t and 80t are more, the total weight of weight components required by the test is 20t to 100t, and the carrying and the combination of the weights during the test are labor-consuming and laborious; a weight between 10t and 20t needs two persons to cooperate and be hoisted and carried by a crane.
(3) The required weights are large in quantity, large in specification and large in total weight.
The electric hoist has multiple rated tonnage levels, and the test relates to a plurality of weight combinations, in particular to a large-tonnage electric hoist with the rated tonnage of 160t, wherein a weight assembly of 200t is used in the test, and 20 weights of 10t or 10 weights of 20t are required; the small-tonnage electric hoist of the grade of 0.125t needs to be matched with small-specification weights of 0.00005t, 0.001t and the like in a 1.25-time static load test; the large number and the large specification of the weights are very tedious and labor-consuming in storage, management and transportation in and out.
(4) The requirements on a test bed and a test field are high.
When the large-tonnage electric hoist with the weight of 100t is subjected to a 1.25-time static load test, 10 weights with the weight of 10t and 1 weight with the weight of 5t are generally needed, 11 weights are totally used, the heights of all the weights are strung to be close to 3 meters, the lifting distance of the electric hoist is seriously influenced, and a higher test bed and a higher test workshop are needed.
(5) The test could not be run.
In order to solve the problem of insufficient weight components, a jack reverse pulling method, a hydraulic pulling force method and the like are used for replacing the weight components. The methods rely on the ground anchor device to pull the electric hoist lifting hook downwards to verify the structural bearing capacity of the electric hoist lifting hook, but the pulling points on the device are fixed, so that tests related to running such as dynamic load, climbing and speed cannot be carried out.
(6) The test device is costly.
The existing test device has the advantages of large quantity of related weights, large specification, large total weight, time and labor waste in weight matching, high requirements on a test bench and a test plant, and greatly increased test cost.
SUMMERY OF THE UTILITY MODEL
The applicant provides a rational in infrastructure's experimental reinforcement weight system of electric block to the shortcoming among the above-mentioned prior art of production to retrench weight specification, quantity, reduce weight matching work load, promote weight matching speed efficiency greatly, and can adapt to multiple experimental requirement, the test cost is low.
The utility model discloses the technical scheme who adopts as follows:
a boosting weight system for an electric hoist test comprises a pit, wherein the bottom of the pit is provided with an anchoring device, and the top of the anchoring device extends upwards to form an inverted ground anchor lifting hook; the bottom of the force increasing device is provided with a lower lifting hook connected with a ground anchor lifting hook, the top of the force increasing device extends upwards to form an inverted upper lifting hook, a weight lifting hook is downwards installed in the force increasing device through the side edge of a steel wire rope, and a weight component is hung on the weight lifting hook; a steel wire rope connected with the weight lifting hook sequentially penetrates through the pulleys to realize reinforcement; during testing, the anchoring device, the force boosting device and the weight assembly are all accommodated in the inner space of the pit, and the upper lifting hook is hooked and lifted by the lifting hook of the electric hoist and protrudes out of the ground; the upper lifting hook moves along the test bed along with the electric hoist, the ground anchor lifting hook is pulled up by the lower lifting hook and moves along the anchoring device, and the weight component is pulled up by the weight lifting hook and moves synchronously.
As a further improvement of the above technical solution:
the anchoring device is structurally characterized in that: the device comprises bottom plates arranged at intervals, wherein top plate rails are respectively arranged on the upper parts of the two bottom plates at intervals in parallel; the wheel is installed respectively in the clearance department that is located between bottom plate and the roof track, and two wheels pass through the earth anchor lifting hook crossbeam and connect, the ascending earth anchor lifting hook of earth anchor lifting hook crossbeam mid-mounting, the symmetry is installed the side gyro wheel on the earth anchor lifting hook crossbeam that is located earth anchor lifting hook both sides, and the side gyro wheel is laminated with the orbital internal face of roof.
The structure of the force increasing device is as follows: the lifting device comprises a lower lifting hook beam, wherein a downward lower lifting hook is arranged in the middle of the lower lifting hook beam, and a fixed pulley is arranged on the lower lifting hook beam positioned on the side edge of the lower lifting hook; the lifting hook device also comprises an upper lifting hook cross beam, wherein an upward upper lifting hook is arranged in the middle of the upper lifting hook cross beam, and a lifting hook pulley is arranged on the upper lifting hook cross beam positioned on the side edge of the upper lifting hook; the end of the steel wire rope is fixed at one end of the lower hook beam, and the free end of the steel wire rope is sequentially wound around the hook pulley and the fixed pulley and is finally connected with the weight hook after being wound around the last hook pulley.
The fixed pulley and the two hook pulleys form a group, and a plurality of groups are arranged in the force increasing device in parallel.
A plurality of fixed pulleys are arranged on the lower hook cross beam at intervals; a plurality of hook pulleys are installed on the upper hook cross beam at intervals.
The weight component has the structure that: the lifting device comprises a plurality of stacked weight bodies, wherein two adjacent weight bodies are connected through a hook, and the top weight body is provided with a lifting ring hung with a weight lifting hook through an inverted T-shaped suspender; still include the joint on the weight body rather than the little weight that cooperates the use.
The pit is located under the electric block test bench, and is a rectangular pit dug downwards along the length of the bench.
A maintenance channel is arranged at the bottom of the pit below the anchoring device; the end of the pit is provided with a stair leading to the maintenance passage.
And a trolley track is also arranged in the pit beside the anchoring device, and a trolley moving along the trolley track is arranged on the trolley track.
The utility model has the advantages as follows:
the utility model has compact and reasonable structure and convenient operation, and greatly reduces the weight of the weight components through the force increasing device; through the ground anchor device, the ground anchor lifting hook in the ground anchor device moves along with the electric hoist when the electric hoist runs along the experiment bench, so that the running test of the electric hoist is effectively realized; the weight bodies in the weight component are connected with each other through the hooks, the weight component is convenient to assemble and disassemble, and the weights required by the small weights are matched to adjust the test weight, so that the weight types are greatly simplified, and the weight matching efficiency is improved; and the weight body is carried by the trolley, so that time and labor are saved, the overall test speed is greatly improved, and the test cost is reduced.
The utility model discloses still include following advantage:
only two types of weight bodies and small weights are arranged in the weight component, and the weight bodies can be interchanged when in use; the uppermost weight body is only required to be hoisted through the T-shaped suspender, and the other weight bodies are connected through the buckle-type hook, so that the assembly and disassembly are convenient, the matching and the assembly time of weight components are greatly prolonged, the weight carrying work is reduced, the weight types are simplified, and the effective management is convenient;
the ground anchor device is arranged in a pit below the test bed, only the upper lifting hook of the booster device in the system protrudes out of the pit and is connected with the electric hoist in a hanging way when the ground anchor device is used, and the requirement on the height of the test bed is low when the ground anchor device is lifted to the same height, so that the requirement on the height of a test plant is low;
a pit is arranged right below the test bed, the ground anchor device is arranged in the pit, and the force increasing device and the weight component are also accommodated in the pit, so that the electric block connected with the upper lifting hook in the force increasing device is basically flush with the ground, the lifting distance of the electric block is effectively extended downwards, and the height of the test bed on the ground is greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural view of the weight assembly of the present invention.
Fig. 3 is a schematic view (front view) of the connection between the two weight bodies of the present invention.
Fig. 4 is a schematic view (side view) of the connection between the weight bodies of the present invention.
Fig. 5 is a schematic structural view of the weight body of the present invention.
Wherein: 1. maintaining the channel; 2. a base plate; 3. a pit; 4. a roof rail; 501. a lower hook; 502. a lower hook cross beam; 503. a wire rope; 504. a hook pulley; 505. an upper hook beam; 506. an upper hook; 507. a weight hook; 508. a fixed pulley; 6. a ground anchor hook; 7. a weight component; 701. a weight body; 702. a central bore; 703. a T-shaped boom; 704. a hoisting ring; 705. an ear plate; 706. a small weight hole; 707. hooking; 8. a side roller; 9. a ground anchor hook beam; 10. a wheel; 11. a trolley; 12. a trolley track.
Detailed Description
The following describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1, the force-increasing weight system for the electric hoist test of the present embodiment includes a pit 3, the bottom of which is provided with an anchoring device, and the top of the anchoring device extends upwards to form an inverted ground anchor hook 6; the weight-weight device further comprises a force-increasing device, wherein a lower lifting hook 501 connected with the ground anchor lifting hook 6 is arranged at the bottom of the force-increasing device, an inverted upper lifting hook 506 extends upwards from the top of the force-increasing device, a weight lifting hook 507 is downwards arranged in the force-increasing device through the side edge of a steel; a steel wire rope 503 connected with a weight lifting hook 507 sequentially passes through a plurality of pulleys to realize reinforcement; during the test, the anchoring device, the force increasing device and the weight component 7 are all accommodated in the inner space of the pit 3 and do not occupy the height of the ground, only the upper lifting hook 506 is hooked and lifted by the lifting hook of the electric hoist and protrudes out of the ground, and the lifting distance of the electric hoist is effectively extended downwards; the upper hook 506 moves along the test bed with the hoist, the ground anchor hook 6 is pulled up by the lower hook 501 and moves along the anchoring device, and the weight assembly 7 is pulled up by the weight hook 507 and moves synchronously.
The anchoring device is structurally characterized in that: the device comprises bottom plates 2 arranged at intervals, wherein top plate rails 4 are respectively arranged on the upper parts of the two bottom plates 2 at intervals in parallel; the single bottom plate 2 is connected with the corresponding top plate rail 4 through the vertical plates, wherein the top plate rail 4 is arranged on the inner side walls of the two vertical plates, and the bottom plate 2 is arranged at the bottoms of the vertical plates; the end parts of the bottom plate 2 opposite to each other extend into the ground and are fastened through hook-shaped ground anchor nails, the ground anchor nails are fastened on the bottom plate 2 through nuts, the ground anchor nails are symmetrically distributed buried bolts, and the anchoring devices are fixed in the pit 3; wheels 10 are respectively installed in the gaps between the bottom plate 2 and the top plate track 4, the two wheels 10 are connected through an earth anchor lifting hook cross beam 9, and the two wheels 10 are respectively installed at the end parts of the earth anchor lifting hook cross beam 9 through bearings; an upward ground anchor lifting hook 6 is arranged in the middle of a ground anchor lifting hook cross beam 9, the tail end of the ground anchor lifting hook 6 penetrates through a bearing arranged in a hole of the ground anchor lifting hook cross beam 9 and is axially locked through a nut and a pin shaft, the bearing is in interference fit with the hole of the ground anchor lifting hook cross beam 9 so that the ground anchor lifting hook 6 can rotate, and the nut is a locknut and used for stopping the ground anchor lifting hook 6 and fixing the ground anchor lifting hook on the ground anchor lifting hook cross beam 9 in the axial direction; the top of the ground anchor lifting hook beam 9 positioned at the two sides of the ground anchor lifting hook 6 is symmetrically provided with side rollers 8 through roller bearings, and the side rollers 8 are attached to the inner wall surface of the roof rail 4.
The structure of the force increasing device is as follows: the lifting device comprises a lower lifting hook cross beam 502, wherein a downward lower lifting hook 501 is arranged in the middle of the lower lifting hook cross beam through a bearing, and the lower lifting hook 501 is axially locked through a nut and a pin shaft; a plurality of fixed pulleys 508 are arranged on the lower hook cross beam 502 positioned on the side edge of the lower hook 501; the lifting device also comprises an upper lifting hook cross beam 505, wherein an upward upper lifting hook 506 is arranged in the middle of the upper lifting hook cross beam through a bearing, and the upper lifting hook 506 is axially locked through a nut and a pin shaft; a plurality of hook pulleys 504 are arranged on an upper hook beam 505 positioned on the side edge of the upper hook 506 through rolling bearings; a lifting lug is welded at the end part of the lower lifting hook cross beam 502, a wedge block is clamped in a through hole in the upper part of the lifting lug, one end part of a steel wire rope 503 is cast in the center of the wedge block arranged at the end part of the lower lifting hook cross beam 502, the other free end of the steel wire rope is wound around a lifting hook pulley 504 and a fixed pulley 508 in sequence, and the steel wire rope is wound out from the last lifting hook pulley 504 and then is.
The lower hook beam 502 is a hollow beam with a square-shaped cross section, and the fixed pulley 508 is mounted on the lower hook beam 502 through a pin shaft; the pin shaft penetrates through the lower hook cross beam 502, and a fixed pulley 508 is sleeved on the pin shaft positioned in the lower hook cross beam 502 through a bearing; the end of the pin shaft penetrating through the lower hook cross beam 502 is provided with symmetrical open slots, baffles are clamped in the open slots and fixedly connected to the side surface of the lower hook cross beam 502 through bolts to prevent the pin shaft from axially moving, and further the fixed pulley 508 is stably installed; also mounted on lower hook beam 502 outside fixed sheave 508 is a groove escape preventing device of a stud structure which is located outside the rope groove of fixed sheave 508 to prevent wire rope 503 from jumping out of the rope groove of fixed sheave 508.
As shown in fig. 2, 3 and 4, the weight assembly 7 has the structure: the weight body 701 at the top is provided with a hanging ring 704 hung with a weight hanging hook 507 through an inverted T-shaped hanging rod 703, the tail of the T-shaped hanging rod 703 is fixedly connected with the hanging ring 704 through a locknut, and the end head of the tail is provided with a safety pin for preventing the locknut from loosening; the weight body 701 is clamped on a small weight matched with the small weight.
As shown in fig. 5, the weight body 701 is a circular cake-shaped structure, wherein an i-shaped central hole 702 is formed in the middle of the weight body, the T-shaped suspension rod 703 is hooked with the step of the central hole 702, and the countersunk height at the two ends of the central hole 702 is greater than the height of the head of the T-shaped suspension rod 703 to accommodate the head of the T-shaped suspension rod 703, so that the weight body 701 is in planar contact when stacked or connected with each other, and is stable and reliable; a plurality of small weight holes 706 for placing small weights are formed in the weight body 701 on the outer side of the central hole 702 along the circumferential direction, a plurality of uniformly arranged ear plates 705 are formed at the edges of two planes of the weight body 701 on the outer side of the small weight holes 706 in an inward concave manner, and the ear plates 705 are in a trapezoidal thin plate structure; the middle part of the ear plate 705 is provided with a through hook groove; the hook groove is convenient for the hook of the hook 707 to be clamped in, so that the connection between the adjacent weight bodies 701 is more reliable.
Two ends of the hook 707 are provided with hook structures, the hook 707 close to the hook at one end is provided with an anti-falling plate through a pin shaft, and a spring is arranged between the anti-falling plate and the hook 707; the anti-falling plate rotates relative to the hook 707 by taking the pin shaft as a center, and the end part of the anti-falling plate which does circular motion is positioned inside the hook 707; the hooks 707 are hung outside the circumferential surfaces of two adjacent weight bodies 701. The hook 707 is held, and force is applied to the anti-dropping plate to enable the anti-dropping plate to rotate by taking a pin shaft at one end as a center, the other end of the anti-dropping plate is far away from the hook tip position of the hook 707, and the spring is compressed; hooking a hook at the lower part of the hook 707 with an ear plate 705 of the weight body 701 positioned at the lower part, and synchronously hooking a hook at the upper part of the hook 707 with a corresponding ear plate 705 of the weight body 701 positioned at the upper part; the anti-dropping plate is released, and the anti-dropping plate rotates under the action of the compression spring 70 and presses the lug plate 705 of the upper weight body 701, so that the two weight bodies 701 are connected.
A maintenance channel 1 is arranged at the bottom of the pit 3 below the anchoring device; the end of the pit 3 is provided with a staircase leading to the service aisle 1.
A trolley rail 12 is also arranged in the pit 3 beside the anchoring device, and a trolley 11 moving along the trolley rail 12 is arranged on the trolley rail 12.
In the utility model, the multiplying power of the force increasing device is 2/the number of the moving wire rope heads;
in this embodiment, as shown in FIG. 1, lower hook beam 502 has a fixed sheave 508 mounted thereon; two ends of the upper hook beam 505 are respectively provided with a hook pulley 504; one end of a steel wire rope 503 is fixed with the lifting lug, the other free end of the steel wire rope bypasses a hook pulley 504, a fixed pulley 508 and another hook pulley 504 in sequence, and the end of the steel wire rope is connected with a weight hook 507; that is, two movable pulleys are included, one end of the wire rope 503 is a free end, that is, the number of the movable heads is 1, and the multiplying power of the force boosting device is 2 × 2/1 times 4 times; in the test, the weight of the weight assembly 7 hooked by the weight hook 507 was G, and the load ultimately applied to the hoist hook by the upper hook 506 was 4G.
The use method of the force-increasing weight system for the electric hoist test of the embodiment, taking an electric hoist with a rated load of 40t to perform a static load test of 1.25 times, taking the weight of a single weight body 701 of 5t and the weight of a single small weight of 0.5t as examples, comprises the following operation steps:
the first step is as follows: calculating the load required by the test according to the rated load 40t of the tested electric hoist: the load of the static load test is 1.25 x 40 x 50 t;
the second step is that: from the load calculated in the first step, the weight of the weight assembly 7 is calculated to be 50/4-12.5 t, and further the number of weight bodies 701 is calculated to be 2, and the number of small weights is calculated to be 5;
the third step: connecting two upper weights in the stacked weight bodies 701 together by using a hook 707 according to the number of the weight bodies 701 and the small weights calculated in the second step, and ensuring that the second weight body 701 is separated from the hook 707 of the third weight body 701;
the fourth step: according to the number of the small weights calculated in the second step, 5 small weights are clamped and installed in the small weight holes 706 of the weight body 701;
the fifth step: the lifting hook of the tested electric hoist is hooked with the upper lifting hook 506 of the force increasing device, the lower lifting hook 501 of the force increasing device is connected with the ground anchor lifting hook 6, and the weight lifting hook 507 of the force increasing device is connected with the lifting ring 704;
and a sixth step: hoisting the electric hoist lifting hook, further hoisting the booster device and the weight assembly 7, and starting the test;
the seventh step: the rest weight body 701 and the small weights are conveyed to a position outside the test area in the pit 3;
eighth step: after the test is completed, the weight body 701 of the weight unit 7 is stacked on the remaining weight body 701 of the dolly 11, and the force increasing device is removed.
During the dynamic load test, the electric hoist is lifted and runs along the test bench, so that the weight component 7 and the force boosting device are driven to move, and further the ground anchor hooks 6 in the anchoring device are driven to move together under the rolling of the wheels 10.
The utility model discloses can effectively realize electric block's operation test, retrench the weight type, required weight load when application boosting mechanism has reduced the experiment greatly to greatly reduced the high requirement to test bench and test factory building, improved experimental speed and efficiency, the practicality is good.
The above description is for the purpose of explanation and not limitation of the invention, which is defined in the claims, and any modifications may be made within the scope of the invention.
Claims (9)
1. The utility model provides an experimental reinforcement weight system of electric block which characterized in that: comprises a pit (3), the bottom of which is provided with an anchoring device, and the top of the anchoring device extends upwards to form an inverted ground anchor lifting hook (6); the weight scale is characterized by further comprising a force increasing device, wherein a lower lifting hook (501) connected with the ground anchor lifting hook (6) is arranged at the bottom of the force increasing device, an inverted upper lifting hook (506) extends upwards from the top of the force increasing device, a weight lifting hook (507) is downwards installed in the force increasing device through the side edge of a steel wire rope (503), and a weight component (7) is hung on the weight lifting hook (507); a steel wire rope (503) connected with a weight hook (507) sequentially passes through a plurality of pulleys to realize reinforcement; during testing, the anchoring device, the force boosting device and the weight component (7) are all accommodated in the inner space of the pit (3), and the upper lifting hook (506) is hooked and lifted by the lifting hook of the electric hoist and protrudes out of the ground; the upper hook (506) moves along the test bed along with the electric hoist, the ground anchor hook (6) is pulled up by the lower hook (501) and moves along the anchoring device, and the weight component (7) is pulled up by the weight hook (507) and moves synchronously.
2. The power-increasing weight system for the electric hoist test as claimed in claim 1, wherein: the anchoring device is structurally characterized in that: comprises bottom plates (2) arranged at intervals, wherein top plate rails (4) are respectively arranged on the upper parts of the two bottom plates (2) at intervals in parallel; wheel (10) are installed respectively to the clearance department that is located between bottom plate (2) and roof track (4), and two wheel (10) are connected through earth anchor lifting hook crossbeam (9), the ascending earth anchor lifting hook (6) of earth anchor lifting hook crossbeam (9) mid-mounting has side gyro wheel (8) to the symmetry on earth anchor lifting hook crossbeam (9) that is located earth anchor lifting hook (6) both sides, and side gyro wheel (8) are laminated with the internal face of roof track (4).
3. The power-increasing weight system for the electric hoist test as claimed in claim 1, wherein: the structure of the force increasing device is as follows: the lifting device comprises a lower lifting hook cross beam (502), wherein a downward lower lifting hook (501) is arranged in the middle of the lower lifting hook cross beam, and a fixed pulley (508) is arranged on the lower lifting hook cross beam (502) positioned on the side edge of the lower lifting hook (501); the lifting hook is characterized by further comprising an upper hook cross beam (505), wherein an upward upper hook (506) is arranged in the middle of the upper hook cross beam, and a hook pulley (504) is arranged on the upper hook cross beam (505) positioned on the side edge of the upper hook (506); the end part of the steel wire rope (503) is fixed at one end of the lower hook beam (502), and the free end of the steel wire rope sequentially bypasses a hook pulley (504) and a fixed pulley (508) and finally is connected with a weight hook (507) after bypassing the last hook pulley (504).
4. The electric block test boosting weight system as claimed in claim 3, wherein: a fixed pulley (508) and two hook pulleys (504) form a group, and a plurality of groups are arranged in parallel in the force boosting device.
5. The electric block test boosting weight system as claimed in claim 3, wherein: a plurality of fixed pulleys (508) are arranged on the lower hook cross beam (502) at intervals; a plurality of hook pulleys (504) are arranged on the upper hook cross beam (505) at intervals.
6. The power-increasing weight system for the electric hoist test as claimed in claim 1, wherein: the weight component (7) has the structure that: the weight body (701) at the top is provided with a hanging ring (704) hung with a weight hanging hook (507) through an inverted T-shaped hanging rod (703); the weight body (701) is clamped with a small weight matched with the weight body for use.
7. The power-increasing weight system for the electric hoist test as claimed in claim 1, wherein: the pit (3) is located under the electric hoist test bench and is a rectangular pit dug downwards along the length of the bench.
8. The power-increasing weight system for the electric hoist test as claimed in claim 1, wherein: a maintenance channel (1) is arranged at the bottom of the pit (3) below the anchoring device; the end of the pit (3) is provided with a stair leading to the maintenance passage (1).
9. The power-increasing weight system for the electric hoist test as claimed in claim 1, wherein: a trolley track (12) is also arranged in the pit (3) beside the anchoring device, and a trolley (11) moving along the trolley track (12) is arranged on the trolley track.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920923480.7U CN210037238U (en) | 2019-06-19 | 2019-06-19 | Boosting weight system for electric hoist test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160817A (en) * | 2019-06-19 | 2019-08-23 | 江苏省特种设备安全监督检验研究院 | Electric block tests reinforcement poise system and its application method |
| CN112414599A (en) * | 2020-10-30 | 2021-02-26 | 广西玉柴机器股份有限公司 | Valve guide rod pulling-out device |
-
2019
- 2019-06-19 CN CN201920923480.7U patent/CN210037238U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110160817A (en) * | 2019-06-19 | 2019-08-23 | 江苏省特种设备安全监督检验研究院 | Electric block tests reinforcement poise system and its application method |
| 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 |
| CN112414599A (en) * | 2020-10-30 | 2021-02-26 | 广西玉柴机器股份有限公司 | Valve guide rod pulling-out device |
| CN112414599B (en) * | 2020-10-30 | 2023-05-16 | 广西玉柴机器股份有限公司 | Valve guide rod pulling-out device |
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