Bridge crane with main winch and auxiliary hoist

Abstract

The utility model provides a bridge crane with a main winch and an auxiliary hoist, relates to the technical field of hoisting equipment, and aims to solve the technical problem that a trolley is large in size due to the fact that a main hook and an auxiliary hook of a crane in the prior art are realized by a winch mechanism. A bridge crane with a main winch and an auxiliary hoist comprises a first beam bridge, a second beam bridge and a trolley, the trolley comprises a trolley body and a plurality of wheels, the wheels are rotationally connected to the bottom end of the trolley body, the trolley moves on the first beam bridge and the second beam bridge through the wheels, the trolley body is connected with a winch mechanism and an electric hoist, and the winch mechanism is connected with a first lifting hook. The electric hoist is connected with a second lifting hook, the first lifting hook and the second lifting hook are both located between the first beam bridge and the second beam bridge, and the vehicle body is connected with a first buffering mechanism and a second buffering mechanism which are used for buffering when the vehicle body moves to the two ends of the first beam bridge and the second beam bridge. The electric hoist replaces a hoisting mechanism serving as an auxiliary hook in the prior art, and the size of the trolley is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lifting equipment, in particular to a main winch and auxiliary hoist bridge crane. Background Art

[0002] A crane refers to a multi-action lifting machine that can lift heavy objects vertically and carry them horizontally within a certain range. Among them, a double-beam bridge crane mainly includes two beam bridges. The trolley moves horizontally along the two beam bridges, and the heavy objects are lifted by the hook on the trolley. Generally, the crane will take the form of a main hook and a secondary hook, in which the main hook is used to lift heavier objects, so the lifting speed is slower, and the secondary hook is used to lift lighter objects, and the lifting speed will be relatively fast to improve efficiency. In the prior art, the main hook and the secondary hook of the crane in the form of a main hook and a secondary hook are generally realized by a winch mechanism, resulting in a larger size of the trolley. In addition, a buffer is generally provided on the trolley to play a buffering role when the trolley stops at the edge of the beam bridge, and the buffer is generally provided at the end of the trolley, resulting in a reduction in the effective stroke of the trolley. Utility Model Content

[0003] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a main winch and auxiliary hoist bridge crane to solve the technical problem that the main hook and the auxiliary hook of the crane in the prior art are both realized by the winch mechanism, resulting in a large volume of the trolley.

[0004] In order to solve the above technical problems, the utility model provides a main winch and auxiliary hoist bridge crane, including a first beam bridge, a second beam bridge and a trolley, the first beam bridge and the second beam bridge are both horizontally arranged and parallel to each other, the trolley includes a body and a plurality of wheels, the plurality of wheels are rotatably connected to the bottom end of the body, the trolley moves on the first beam bridge and the second beam bridge through the plurality of wheels, a winch mechanism and an electric hoist are connected to the body, the winch mechanism is connected to a first hook, the electric hoist is connected to a second hook, the first hook and the second hook are both located between the first beam bridge and the second beam bridge, and a first buffer mechanism and a second buffer mechanism are connected to the body for buffering when the body moves to the two ends of the first beam bridge and the second beam bridge.

[0005] After adopting the above structure, the utility model of a main winch and auxiliary hoist bridge crane has the following advantages: the trolley travels on the first beam bridge and the second beam bridge through wheels, a winch mechanism and an electric hoist are arranged on the vehicle body, the winch mechanism drives the first hook to lift the object between the first beam bridge and the second beam bridge, and the electric hoist drives the second hook to lift the object between the first beam bridge and the second beam bridge, wherein the winch mechanism still serves as the main hook to lift heavier objects, and the electric hoist serves as the auxiliary hook to lift lighter objects, and the lifting speed of the electric hoist is faster than that of the winch mechanism for lifting heavier objects, which can also improve efficiency, and the electric hoist replaces the winch mechanism as the auxiliary hook in the prior art, thereby reducing the size of the trolley.

[0006] As an improvement, the first beam bridge and the second beam bridge are both arranged in the left and right directions, and the first buffer mechanism includes two first buffers and two first buffer plates. The upper end faces of the right parts of the first beam bridge and the second beam bridge are each connected to a first buffer plate, and the right end face of the vehicle body is connected to two first buffers. The two first buffers are distributed in the front and rear directions, and the two first buffer plates are respectively located on the moving paths of the two first buffers. With this structure, when the trolley moves to the right end limit position of the first beam bridge and the second beam bridge, the two first buffers and the first buffer plates are offset against each other to play a buffering role.

[0007] As an improvement, the first beam bridge and the second beam bridge are both arranged in the left and right directions, and the second buffer mechanism includes two second buffers and two second buffer plates. The upper end faces of the left parts of the first beam bridge and the second beam bridge are each connected to a second buffer plate, and the left parts of the front and rear end faces of the vehicle body are respectively connected to a second buffer, and the two second buffer plates are respectively located on the moving paths of the two second buffers. With this structure, when the trolley moves to the left end limit position of the first beam bridge and the second beam bridge, the two second buffers and the second buffer plates are offset to play a buffering role, and since the two second buffers are arranged on the front and rear end faces of the vehicle body, the trolley can travel a farther distance to the left compared to when the second buffer is arranged on the left end face, thereby expanding the effective stroke of the trolley.

[0008] As an improvement, a drive motor and a reducer are connected to the vehicle body, the drive motor is connected to the reducer input shaft through a drum gear coupling, and the reducer output shaft is connected to the first hook; the drive motor and the reducer in the prior art are connected through two couplings and a transmission shaft, so the coaxiality requirement for installation is lower, and therefore the installation is more convenient. In the improved structure of the utility model, the drive motor and the reducer are directly connected by a drum gear coupling. As long as the coaxiality is adjusted during installation, parts can be saved and the overall weight of the vehicle can be reduced.

[0009] As an improvement, a brake is provided inside the driving motor.

[0010] As an improvement, the reducer input shaft is connected to a brake wheel, and an independent brake is connected to the vehicle body, and the independent brake is used to brake the brake wheel; with this structure, the independent brake is used as the main brake, and the brake of the drive motor is used as the auxiliary brake, thereby improving the reliability of braking.

[0011] As an improvement, the drive motor is located on the inner side of the reducer in the front-to-back direction, the independent brake and the brake wheel are both located on the outer side of the reducer in the front-to-back direction, and the pusher of the independent brake is arranged along the left-right direction and toward the inside of the vehicle body; adopting this structure can prevent the independent brake from interfering with other structures on the trolley, and also prevent the pusher of the independent brake from extending outside the left-to-right direction of the trolley.

[0012] As an improvement, the top ends of the first beam bridge and the second beam bridge are provided with bosses arranged along the length direction of the first beam bridge and the second beam bridge, and the middle part of the outer peripheral wall of each wheel is provided with an annular groove along the circumferential direction, and the boss is located in the groove; with this structure, the boss and the groove play a limiting role to prevent the trolley from deviating from the first beam bridge and the second beam bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a top view of the utility model.

[0014] Figure 2 It is a side view of the utility model.

[0015] Figure 3 for Figure 2 A partial enlarged view of part A in the middle.

[0016] Figure 4 It is the front view of the small vehicle part of the utility model.

[0017] Figure 5 It is a top view of the small vehicle part of the utility model.

[0018] Figure numerals: 1. first beam bridge; 2. second beam bridge; 3. trolley; 31. vehicle body; 32. wheels; 4. winch mechanism; 5. electric hoist; 6. first hook; 7. second hook; 8. first buffer; 9. first buffer plate; 10. second buffer; 11. second buffer plate; 12. drive motor; 13. reducer; 14. drum gear coupling; 15. brake wheel; 16. independent brake; 17. groove; 18. boss; 19. drum group. DETAILED DESCRIPTION

[0019] The main winch and auxiliary hoist bridge crane of the utility model is described in detail below with reference to the accompanying drawings.

[0020] like Figures 1 to 5 As shown, a main winch and auxiliary hoist bridge crane comprises a first beam bridge 1, a second beam bridge 2 and a trolley 3. The first beam bridge 1 and the second beam bridge 2 are both arranged horizontally and parallel to each other, and the two are arranged at the same height; the trolley 3 comprises a body 31 and a plurality of wheels 32, the plurality of wheels 32 are rotatably connected to the bottom end of the body 31, and there are four wheels 32 in total and they are distributed at four corners and connected to the bottom end of the body 31, so that the wheels 32 and the body 31 are symmetrical in left-right and front-back structure as a whole. The trolley 3 moves on the first beam bridge 1 and the second beam bridge 2 through the plurality of wheels 32, and the first beam bridge 1 and the second beam bridge 2 have two wheels 32 respectively; in addition, as Figure 3 As shown, the top ends of the first beam bridge 1 and the second beam bridge 2 are provided with bosses 18 arranged along the length direction of the first beam bridge 1 and the second beam bridge 2, and an annular groove 17 is circumferentially provided in the middle of the outer peripheral wall of each wheel 32, and the boss 18 is located in the groove 17.

[0021] like Figure 1 and Figure 2 As shown, a winch mechanism 4 and an electric hoist 5 are connected to the vehicle body 31, the winch mechanism 4 is connected to a first hook 6, the electric hoist 5 is connected to a second hook 7, and the first hook 6 and the second hook 7 are both located between the first beam bridge 1 and the second beam bridge 2; Figure 5 As shown, a driving motor 12 and a reducer 13 are connected to the vehicle body 31. The driving motor 12 is connected to the input shaft of the reducer 13 through a drum gear coupling 14. The output shaft of the reducer 13 is connected to the first hook 6. Specifically, the output shaft of the reducer 13 is connected to the drum, and the wire rope of the first hook 6 is wound on the drum. The specific structure and working principle between the reducer 13 and the first hook 6 are all existing technologies and will not be repeated here.

[0022] like Figure 5 As shown, the input shaft of the reducer 13 is connected to the brake wheel 15, and the vehicle body 31 is connected to an independent brake 16, which is used to brake the brake wheel 15, and the drive motor 12 is provided with a built-in brake; wherein, the setting positions of the independent brake 16 and the brake wheel 15 are as shown in FIG. Figure 5 As shown, the drive motor 12 is arranged on the left side of the vehicle body 31 near the front side, the reel group 19 is arranged adjacent to the right side of the drive motor 12, and the reducer 13 is arranged in front of the drive motor 12. If the independent brake 16 and the brake wheel 15 are arranged between the reducer 13 and the drive motor 12, the independent brake 16 is easy to interfere with the reel group 19. Therefore, the drive motor 12 is located on the inner side of the reducer 13 in the front-back direction, and the independent brake 16 and the brake wheel 15 are both located on the outer side of the reducer 13 in the front-back direction. Specifically, in this embodiment, the independent brake 16 and the brake wheel 15 are located in front of the reducer 13; in addition, regarding the position of the pusher of the independent brake 16, since the independent brake 16 is already close to the trolley 3 At the left end of the vehicle body 3, if the pusher is set toward the left side, the pusher will extend outside the trolley 3, affecting the effective stroke of the trolley 3. Therefore, the pusher of the independent brake 16 is set along the left and right directions and toward the inside of the vehicle body 31. Specifically, in this embodiment, the pusher of the independent brake 16 is set toward the inside of the vehicle body 31, that is, the right side, and the structure of the electric hoist 5 is all prior art, which will not be repeated here. During operation, when the winch mechanism 4 brakes, the independent brake 15 first locks the brake wheel 16, and then the brake of the drive motor 12 controls the drive motor 12 to stop. After the independent brake 15 locks the brake wheel 16, the input shaft of the reducer 13 stops rotating, so that its output shaft also stops rotating, thereby achieving braking.

[0023] like Figure 1As shown, the vehicle body 31 is connected with a first buffer mechanism and a second buffer mechanism for buffering when the vehicle body 31 moves to the two ends of the first beam bridge 1 and the second beam bridge 2; the first beam bridge 1 and the second beam bridge 2 are both arranged in the left-right direction, the first buffer mechanism includes two first buffers 8 and two first buffer plates 9, the first beam bridge 1 and the second beam bridge 2 are each connected to a first buffer plate 9 on the upper end surface of the right part, the right end surface of the vehicle body 31 is connected to two first buffers 8, the two first buffers 8 are distributed in the front-to-back direction, and the two first buffer plates 9 are respectively located on the moving paths of the two first buffers 8; the first beam bridge 1 and the second beam bridge 2 are both arranged in the left-right direction, the second buffer mechanism includes two second buffers 10 and two second buffer plates 11, the first beam bridge 1 and the second beam bridge 2 are each connected to a second buffer plate 11 on the upper end surface of the left part, the left part of the front and rear end surfaces of the vehicle body 31 is respectively connected to a second buffer 10, and the two second buffer plates 11 are respectively located on the moving paths of the two second buffers 10; wherein, the first buffer plate 9 is arranged as close to the right side as possible, and the second buffer plate 11 is arranged as close to the left side as possible.

[0024] The trolley 3 moves on the first beam bridge 1 and the second beam bridge 2 through the wheels 32, and a winch mechanism 4 and an electric hoist 5 are arranged on the vehicle body 31. The winch mechanism 4 drives the first hook 6 to lift the object between the first beam bridge 1 and the second beam bridge 2, and the electric hoist 5 drives the second hook 7 to lift the object between the first beam bridge 1 and the second beam bridge 2, wherein the winch mechanism 4 still serves as the main hook to lift heavier objects, and the electric hoist 5 serves as the auxiliary hook to lift lighter objects, and the lifting speed of the electric hoist 5 is faster than that of the winch mechanism 4 for lifting heavier objects, which can also improve efficiency. The electric hoist 5 replaces the winch mechanism 4 as the auxiliary hook in the prior art, thereby reducing the volume of the trolley 3.

[0025] The implementation modes of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned one implementation mode, and all other embodiments obtained by those skilled in the art without making any creative work are within the scope of protection of the present invention.

Claims

1. A main winch and auxiliary hoist bridge crane, characterized in that: The invention comprises a first beam bridge (1), a second beam bridge (2) and a trolley (3), wherein the first beam bridge (1) and the second beam bridge (2) are both arranged horizontally and parallel to each other, the trolley (3) comprises a body (31) and a plurality of wheels (32), the plurality of wheels (32) being rotatably connected to the bottom end of the body (31), the trolley (3) moving on the first beam bridge (1) and the second beam bridge (2) via the plurality of wheels (32), the body (31) being connected with a hoisting mechanism (4) and an electric hoist (5), the hoisting mechanism (4) being connected with a first hook (6), the electric hoist (5) being connected with a second hook (7), the first hook (6) and the second hook (7) being both located between the first beam bridge (1) and the second beam bridge (2), and the body (31) being connected with a first buffer mechanism and a second buffer mechanism for buffering when the body (31) moves to the two ends of the first beam bridge (1) and the second beam bridge (2).

2. The main winch and auxiliary hoist bridge crane according to claim 1, characterized in that: The first beam bridge (1) and the second beam bridge (2) are both arranged in the left-right direction, the first buffer mechanism comprises two first buffers (8) and two first buffer plates (9), the first beam bridge (1) and the second beam bridge (2) are each connected to a first buffer plate (9) on the right upper end surface, the right end surface of the vehicle body (31) is connected to the two first buffers (8), the two first buffers (8) are distributed in the front-back direction, and the two first buffer plates (9) are respectively located on the moving paths of the two first buffers (8).

3. The main winch and auxiliary hoist bridge crane according to claim 1, characterized in that: The first beam bridge (1) and the second beam bridge (2) are both arranged in the left-right direction, the second buffer mechanism comprises two second buffers (10) and two second buffer plates (11), the left upper end surfaces of the first beam bridge (1) and the second beam bridge (2) are each connected to a second buffer plate (11), the left portions of the front and rear end surfaces of the vehicle body (31) are respectively connected to a second buffer (10), and the two second buffer plates (11) are respectively located on the moving paths of the two second buffers (10).

4. The main winch and auxiliary hoist bridge crane according to claim 1, characterized in that: The vehicle body (31) is connected to a driving motor (12) and a reducer (13); the driving motor (12) is connected to the input shaft of the reducer (13) via a drum gear coupling (14); and the output shaft of the reducer (13) is connected to the first hook (6).

5. The main winch and auxiliary hoist bridge crane according to claim 4, characterized in that: A brake is arranged inside the driving motor (12).

6. The main winch and auxiliary hoist bridge crane according to claim 5, characterized in that: The input shaft of the reducer (13) is connected to a brake wheel (15), and the vehicle body (31) is connected to an independent brake (16), and the independent brake (16) is used to brake the brake wheel (15).

7. The main winch and auxiliary hoist bridge crane according to claim 6, characterized in that: The drive motor (12) is located on the inner side of the reducer (13) in the front-rear direction, the independent brake (16) and the brake wheel (15) are both located on the outer side of the reducer (13) in the front-rear direction, and the pusher of the independent brake (16) is arranged in the left-right direction and toward the inner side of the vehicle body (31).

8. The main winch and auxiliary hoist bridge crane according to claim 1, characterized in that: The top ends of the first beam bridge (1) and the second beam bridge (2) are each provided with a boss (18) arranged along the length direction of the first beam bridge (1) and the second beam bridge (2); an annular groove (17) is circumferentially arranged in the middle of the outer peripheral wall of each wheel (32); and the boss (18) is located in the groove (17).

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