CN220131741U - Crown block walking driving device of prefabricated inverted arch assembly trolley - Google Patents

Abstract

The utility model relates to a crown block travelling driving device of a prefabricated inverted arch assembly trolley, which comprises a trolley frame, a trolley wheel set arranged in the trolley frame and a speed reducer motor connected with the trolley wheel; further comprises: a sprocket set and a chain matched with the sprocket set; at least one chain wheel in the chain wheel group is sleeved on the wheel shaft of the wheel, and two ends of the chain are fixed on the frame. When the crown block slides between the wheels and the track, the traction force can be provided by the chain tension, so that the crown block is ensured not to slide on a slope under the condition of a large slope, and the safety of the large slope is improved.

Description

Crown block walking driving device of prefabricated inverted arch assembly trolley

Technical Field

The utility model relates to the technical field of rail transportation driving, in particular to an overhead travelling crane driving device of a prefabricated inverted arch assembly trolley.

Background

When the crown block of the prefabricated inverted arch assembly trolley walks on the track, wheels are driven to run on the track through a speed reducer motor, the wheels walk through friction force between the wheels and the track, when the wheels encounter a large gradient, the friction force between the wheels and the track is smaller than the sliding force, the wheels slide on the track and even retreat, and a sliding slope is generated after the crown block is stopped.

In order to prevent the crown block from slipping or sliding on the track, researchers have studied structures to solve the problem:

structure one: the method comprises the steps of arranging a pressurizing device, and connecting the pressurizing device with a wheel shaft and a frame of a wheel to increase the climbing pressure of the wheel; the pressurizing device adopts a lever pressurizing assembly and a pressurizing wheel, one end of the lever pressurizing assembly is connected with the frame, the other end of the lever pressurizing assembly is connected with the wheel shaft of the wheel through a rib plate, and acting force acting on one end of the lever pressurizing assembly is loaded onto the wheel through the rib plate and the pressurizing wheel after pressurizing conversion of the lever pressurizing assembly. But is easily deformed and has a short service life by the lever pressurization and is easily biased.

And (2) a structure II: the single-shaft double-rail travelling mechanism is adopted, one side single rail of the original travelling mechanism is changed into one side double rail, more wheels can be arranged under the condition that the length of the track direction is not increased, and the bearing capacity is doubled, namely, the single-shaft double-rail travelling mechanism adopts the arrangement form of the single-shaft double rails, so that the space is saved, and the transportation requirement is met. However, the wheel is added by a single-shaft double-rail mode, so that more bearings are required to be arranged, the cost is high, and the maintenance is inconvenient. In addition, as more wheels exist, uneven wheel pressure of each wheel can cause the crown block to be not easy to balance.

Both structures have the defects, and the problems that the crown block slips or slips when climbing on a track cannot be solved with low cost and other problems cannot be caused.

Disclosure of Invention

First, the technical problem to be solved

In view of the defects and shortcomings of the prior art, the utility model provides a crown block walking driving device of a prefabricated inverted arch assembly trolley, which solves the technical problem of crown block sliding under the condition of large gradient.

(II) technical scheme

In order to achieve the above purpose, the main technical scheme adopted by the utility model comprises the following steps:

in a first aspect, the utility model provides an overhead travelling crane travelling driving device of a prefabricated inverted arch assembly trolley, which comprises a frame and a trolley group arranged in the frame; further comprises: a sprocket set and a chain matched with the sprocket set; at least one chain wheel in the chain wheel group is sleeved on a wheel shaft of the chain wheel group, and two ends of the chain are fixed on the frame.

According to the crown block walking driving device of the prefabricated inverted arch assembly trolley, when the wheels of the crown block and the track slide, traction force can be provided through chain tension; and in the scene of ascending and descending slopes, the rotation of the wheel shaft is restrained through the clamping action of the chain sections on the chain wheels, so that the rotation of the wheels is restrained to be normal (forward, backward or stop). The crown block is ensured not to slide down under the condition of large gradient, and the safety of the large gradient is increased.

Optionally, the wheel set of the crown block walking driving device comprises a first driving wheel set; the chain wheel group comprises a first chain wheel and a second chain wheel, the first chain wheel is sleeved at the rear end of a first wheel shaft of the first driving wheel group, and the second chain wheel is rotatably arranged on the frame; the chain sequentially bypasses the first sprocket and the second sprocket.

Optionally, the wheel set of the crown block walking driving device further comprises a second driving wheel set; the chain wheel group comprises a third chain wheel and a fourth chain wheel, the third chain wheel is rotatably arranged on the frame, and the fourth chain wheel is sleeved at the rear end of a second wheel shaft of the second driving wheel group; the chain sequentially bypasses the first sprocket, the second sprocket, the third sprocket and the fourth sprocket.

Optionally, the distance between the second sprocket and the third sprocket is less than the distance between the first sprocket and the fourth sprocket.

Optionally, two ends of the chain are respectively fixed on two fixing devices, and the fixing devices are fixed on two ends of the main beam of the frame.

Optionally, the crown block walking driving device further includes: the driving end of the first speed reducer motor is sleeved on the wheel shaft of the first driving wheel set.

Optionally, the crown block walking driving device further includes: and the driving end of the second speed reducer motor is sleeved on a second wheel shaft of the second driving wheel set.

When the crown block is parked (braked), the braking force is provided by the motor of the speed reducer, so that the crown block is ensured not to slide under the condition of large gradient.

Optionally, the first speed reducer motor and the second speed reducer motor are both mounted on the frame through a torsion sleeve.

Optionally, spline connection or flat key connection is arranged between the first sprocket and the fourth sprocket and the corresponding wheel shaft. Torque is transferred by splines or flat keys.

Optionally, the first sprocket and the fourth sprocket are drive sprockets; the second sprocket and the third sprocket are driven sprockets.

(III) beneficial effects

The beneficial effects of the utility model are as follows: compared with the prior art, the crown block walking driving device of the prefabricated inverted arch assembly trolley can provide traction force for wheels by transmitting chain tension to the chain wheels and then to the wheels when the wheels and the track of the crown block skid due to the adoption of the chain and the chain wheel group; and in the scene of ascending and descending slopes, the rotation of the wheel shaft is restrained through the clamping action of the chain sections on the chain wheels, so that the rotation of the wheels is restrained to be normal (forward, backward or stop). The crown block is ensured not to slide down under the condition of large gradient, and the safety of the large gradient is increased.

Drawings

Fig. 1 is a schematic structural view of an embodiment 1 of an overhead traveling crane travel drive device of a prefabricated inverted arch assembly trolley of the present utility model;

fig. 2 is a schematic structural view of a first driving wheel set of an overhead travelling crane travelling driving device of the prefabricated inverted arch assembly trolley;

fig. 3 is a schematic structural view of a second driving wheel set of the crown block traveling driving device of the prefabricated inverted arch assembly trolley.

[ reference numerals description ]

1. A frame; 2. a first reducer motor; 3. a second reducer motor; 4. a first active wheel set; 401. a first axle; 402. a first bearing seat; 403. a first wheel; 404. a first bearing; 5. the second driving wheel set; 501. a second axle; 502. a second bearing seat; 503. a second wheel; 504. a second bearing; 6. a first sprocket; 7. a second sprocket; 8. a third sprocket; 9. a fourth sprocket; 10. a chain; 11. a fixing device.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings.

In order that the above-described aspects may be better understood, exemplary embodiments of the present utility model will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present utility model are shown in the drawings, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

The crown block walking driving device of the prefabricated inverted arch assembly trolley provided by the embodiment of the utility model comprises a frame 1 and a trolley group arranged in the frame 1; further comprises: a sprocket set and a chain 10 engaged with the sprocket set; at least one chain wheel in the chain wheel group is sleeved on a wheel shaft of the chain wheel group, and two ends of a chain 10 are fixed on the frame 1.

According to the crown block walking driving device of the prefabricated inverted arch assembly trolley, when the crown block slides between the wheels and the track, the traction force of the chain 10 can be transmitted to the wheels through the chain wheels to provide traction force; and in the up-down slope scene, the rotation of the wheel shaft is restrained by the clamping action of the chain 10 section to the chain wheel, so that the rotation of the wheels is restrained to be normal (forward, backward or stop). The crown block is ensured not to slide down under the condition of large gradient, and the safety of the large gradient is increased.

Referring to fig. 1, in the present embodiment, a wheel set of the crown block travel driving device includes a first driving wheel set 4 and a second driving wheel set 5; the chain wheel set comprises a first chain wheel 6, a second chain wheel 7, a third chain wheel 8 and a fourth chain wheel 9, the first chain wheel 6 is sleeved at the rear end of a first wheel shaft 401 of the first driving wheel set, and the second chain wheel 7 is rotatably arranged on the frame 1; the third chain wheel 8 is rotatably arranged on the frame 1, and the fourth chain wheel 9 is sleeved at the rear end of the second wheel shaft 501 of the second driving wheel set 5; the chain 10 passes around the first sprocket 6, the second sprocket 7, the third sprocket 8 and the fourth sprocket 9 in this order.

In practice, only one set of sprockets may be provided, i.e. the set of sprockets comprises only the first sprocket 6 and the second sprocket 7; the chain 10 sequentially passes around the first sprocket 6 and the second sprocket 7. The cost can be saved, and the use requirement can be met on the track section with a small gradient.

Referring to fig. 2 and 3, in the present embodiment, the first driving wheel set 4 includes a first wheel axle 401, a first bearing seat 402, a first wheel 403, and a first bearing 404; the first wheel 403 is sleeved on the first wheel axle 401, two sides of the first wheel are fixedly installed through first bearings 404, and the first bearings 404 are installed in the first bearing seat 402. In practice, the first sprocket 6 is sleeved on the rear end (outer side) of the first axle 401 of the first driving pulley set 4. The second active wheel set 5 comprises a second wheel axle 501, a second bearing pedestal 502, a second wheel 503 and a second bearing 504; the second wheel 503 is sleeved on the second wheel axle 501, both sides of the second wheel are fixedly installed through a second bearing 504, and the second bearing 504 is installed in the second bearing seat 502. In practice, the fourth sprocket 9 is sleeved on the rear end (outer side) of the second wheel axle 501 of the second driving wheel set 5.

In practice, the distance between the second sprocket 7 and the third sprocket 8 is smaller than the distance between the first sprocket 6 and the fourth sprocket 9. Referring to fig. 1, a second sprocket 7 and a third sprocket 8 are rotatably provided on the frame 1 at a position between the first sprocket 6 and the fourth sprocket 9, the second sprocket 7 being level with the third sprocket 8, and the first sprocket 6 being level with the fourth sprocket 9. Since the first sprocket 6 and the fourth sprocket 9 are arranged on the wheel shafts of the wheels, and the second sprocket 7 and the third sprocket 8 are arranged on the frame 1, the heights of the second sprocket 7 and the third sprocket 8 are slightly higher than those of the first sprocket 6 and the fourth sprocket 9, and when the four sprocket edges are bypassed, the height difference is formed by the chain 10, so that the chain 10 is stretched and the direction change of the pulling force is provided, and each sprocket is better fitted; thus, the chain wheel is clamped through the chain 10 more reliably, the rotation of the wheel shaft is restrained, and the rotation of the wheel is restrained to be normal (forward, backward or stop).

In practice, the first sprocket 6 and the fourth sprocket 9 are driving sprockets; the second sprocket 7 and the third sprocket 8 are driven sprockets. Copper sleeves are arranged in the second chain wheel 7 and the third chain wheel 8.

In practice, the two ends of the chain 10 are respectively fixed on two fixing devices 11, and the fixing devices 11 are fixed on the two ends of the main beam of the frame 1. The sprocket can be straightened by the chain 10 and the direction of the wheel can be indirectly constrained, keeping the direction of the wheel unbiased during running or braking. The chain 10 can also be stretched to prevent the chain 10 from jamming.

When implementing, overhead traveling crane walking drive arrangement still includes: the driving end of the first speed reducer motor 2 is sleeved on the wheel shaft of the first driving wheel set 4; the driving end of the second reducer motor 3 is sleeved on the second wheel shaft 501 of the second driving wheel set 5. When the crown block is parked (braked), the braking force is provided by the motor of the speed reducer, so that the crown block is ensured not to slide under the condition of large gradient.

Or when in implementation, the crown block walking driving device can also only comprise one set of reducer motor: the driving end of the first speed reducer motor 2 is sleeved on the wheel shaft of the first driving wheel set 4. Therefore, the cost is saved, and the function can be completed in a scene with a gentle gradient or a small load (or dead weight).

In practice, the first reducer motor 2 and the second reducer motor 3 are both mounted on the frame 1 through a torsion sleeve. The first sprocket 6 and the fourth sprocket 9 are in spline connection or flat key connection with the corresponding wheel shafts. Torque is transferred by splines or flat keys.

According to the crown block travelling driving device of the prefabricated inverted arch assembly trolley, the chain wheel group and the chain 10 are added at the rear end of the wheel group, the two ends of the chain 10 are fixed on the fixing device 11, the driving chain wheel is connected with the wheels through the spline or the flat key, and when the wheels rotate, the chain wheel rotates, and can simultaneously provide traction force; after the crown block is stopped, braking force can be provided to prevent the crown block from sliding on a slope.

In summary, the crown block walking driving device of the prefabricated inverted arch assembly trolley solves the problem of wheel slip caused by insufficient wheel driving force under the condition of large gradient, and can provide traction force through chain tension. The phenomenon that the crown block slides on the slope under the condition of large gradient is avoided, the two ends of the chain 10 are fixed, the reducer motor provides braking force, the crown block is ensured not to slide on the slope under the condition of large gradient, and the safety of the large gradient is improved. The utility model integrates driving force increasing and windproof anchoring, and has simple structure, low cost and high safety.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "examples," "particular examples," or "some examples," etc., refer to particular features, structures, materials, or characteristics described in connection with the embodiment or example as being included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims (10)

1. A crown block walking driving device of a prefabricated inverted arch assembly trolley comprises a frame (1) and a wheel set arranged on the frame (1); characterized by further comprising:

a sprocket set and a chain (10) engaged with the sprocket set; at least one chain wheel in the chain wheel group is sleeved on a wheel shaft of the chain wheel group, and two ends of the chain (10) are fixed on the frame (1).

2. The crown block travel drive of a prefabricated inverted arch splicing trolley of claim 1, wherein: the wheel set of the crown block walking driving device comprises a first driving wheel set (4);

the chain wheel set comprises a first chain wheel (6) and a second chain wheel (7), the first chain wheel (6) is sleeved at the rear end of a first wheel shaft (401) of the first driving wheel set (4), and the second chain wheel (7) is rotatably arranged on the frame (1);

the chain (10) bypasses the first sprocket (6) and the second sprocket (7) in sequence.

3. The crown block travel drive of a prefabricated inverted arch splicing trolley of claim 2, wherein: the wheel set of the crown block walking driving device also comprises a second driving wheel set (5);

the chain wheel set comprises a third chain wheel (8) and a fourth chain wheel (9), the third chain wheel (8) is rotatably arranged on the frame (1), and the fourth chain wheel (9) is sleeved at the rear end of a second wheel shaft (501) of the second driving wheel set (5);

the chain (10) sequentially bypasses the first sprocket (6), the second sprocket (7), the third sprocket (8) and the fourth sprocket (9).

4. A crown block travel drive for a prefabricated inverted arch splicing trolley as claimed in claim 3, wherein: the distance between the second sprocket (7) and the third sprocket (8) is smaller than the distance between the first sprocket (6) and the fourth sprocket (9).

5. A crown block travel drive for a prefabricated inverted arch splicing trolley as claimed in any one of claims 1 to 3, wherein: the two ends of the chain (10) are respectively fixed on two fixing devices (11), and the fixing devices (11) are fixed on the two ends of the main beam of the frame (1).

6. A crown block travel drive for a prefabricated inverted arch splicing trolley as claimed in claim 3, wherein:

the crown block walking driving device further comprises: the driving end of the first speed reducer motor (2) is sleeved on the wheel shaft of the first driving wheel set (4).

7. The crown block travel drive of a prefabricated inverted arch splicing trolley of claim 6, wherein:

the crown block walking driving device further comprises: and the driving end of the second speed reducer motor (3) is sleeved on a second wheel shaft (501) of the second driving wheel set (5).

8. The crown block travel drive of a prefabricated inverted arch splicing trolley of claim 7, wherein: the first speed reducer motor (2) and the second speed reducer motor (3) are both arranged on the frame (1) through a torsion sleeve.

9. The crown block travel drive of a prefabricated inverted arch splicing trolley of claim 3 or 4, wherein: the first chain wheel (6) and the fourth chain wheel (9) are connected with the corresponding wheel shafts through spline connection or flat key connection.

10. The crown block travel drive of a prefabricated inverted arch splicing trolley of claim 3 or 4, wherein: the first chain wheel (6) and the fourth chain wheel (9) are driving chain wheels; the second chain wheel (7) and the third chain wheel (8) are driven chain wheels.