CN210313167U

CN210313167U - Safe and stable driving

Info

Publication number: CN210313167U
Application number: CN201921361226.9U
Authority: CN
Inventors: 施发园; 陈凌珊
Original assignee: Shanghai University of Engineering Science
Current assignee: Shanghai University of Engineering Science
Priority date: 2019-08-21
Filing date: 2019-08-21
Publication date: 2020-04-14
Anticipated expiration: 2029-08-21

Abstract

The utility model discloses a safe and stable travelling crane, which comprises two bases, wherein the upper sides of the two bases are respectively fixed with a supporting arm, a cross beam is connected between the two supporting arms, a travelling crane sliding block is arranged on the cross beam, the lower side of the travelling crane sliding block is connected with a steel cable, the lower end of the steel cable is connected with a hanging block, a fixed shaft is fixed on the hanging block, a first circular ring and a second circular ring are embedded outside the fixed shaft, hooks are respectively fixed on the lower sides of the first circular ring and the second circular ring, the tail ends of the two hooks are respectively hinged with an anti-falling rod, the tail ends of the hooks are also provided with a torsional spring, the side surface of the anti-falling rod is provided with a second circular hole, one end of the torsional spring is embedded inside the second circular hole, a stabilizing device is fixed on the side surface of the hanging block, the stabilizing device comprises a fixed box, the inner, a rolling ball is arranged between the two baffles. The crane has stable operation, can prevent unhooking, and is safe and reliable.

Description

Safe and stable driving

Technical Field

The utility model belongs to the technical field of the driving technique and specifically relates to a driving of safety and stability is related to.

Background

The crane, the navigation vehicle and the overhead travelling crane are commonly known by people as a crane, and the travelling crane is basically the same as the crane which is called at present. The driving mode of the traveling crane is basically two types, one is centralized driving, namely, a motor is used for driving a long transmission shaft to drive driving wheels at two sides; the two wheels are driven respectively, namely the driving wheels at the two sides are driven by one motor respectively. The middle and small bridge cranes are combined into an integrated three-in-one driving mode by adopting brakes, reducers and motors, the common bridge crane with large hoisting capacity is convenient to install and adjust, and a driving device usually adopts a universal coupling.

The hook on the lower side of the traditional travelling crane is simple in structure, the hook needs to be manually held before lifting after hanging a heavy object, the heavy object can fall off due to the swinging of the hook because no interaction force exists between the hook and the heavy object, and the potential safety hazard is large when the hook is manually held; in addition, the heavy object on the lower side of the traveling crane tends to swing when the traveling crane is started transversely and parked, the stability is poor, and the lower constructors also have great potential safety hazards. Therefore, a safe and reliable travelling crane which is stable in operation and can prevent unhooking is needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved problem of the utility model is to provide a driving that moves stably, can mousing-hook, safe and reliable.

In order to solve the technical problem, the utility model discloses a technical scheme is: a safe and stable travelling crane comprises two bases, wherein the upper sides of the two bases are respectively fixed with a supporting arm, a cross beam is connected between the two supporting arms, a travelling crane sliding block is arranged on the cross beam, the lower side of the travelling crane sliding block is connected with a steel cable, the lower end of the steel cable is connected with a hanging block, a fixed shaft is fixed on the hanging block, a first circular ring and a second circular ring are embedded outside the fixed shaft, hooks are respectively fixed on the lower sides of the first circular ring and the second circular ring, the tail ends of the two hooks are respectively hinged with an anti-falling rod, a torsional spring is further installed at the tail end of each hook, a second circular hole is arranged on the side surface of each anti-falling rod, one end of each torsional spring is embedded inside the second circular hole, a first circular hole is arranged on the side surface of each anti-falling rod, the other end of each torsional spring is embedded inside the first circular hole, the stabilizing device comprises a fixing box, a cavity is arranged in the fixing box, springs are connected to the inner walls of the two sides of the fixing box, the other ends of the springs are connected with baffle plates, and rolling balls are arranged between the baffle plates.

Preferably, in the safe and stable traveling crane, the ends of the two hooks are fixed with stoppers suitable for limiting the anti-dropping rod.

Preferably, the two baffles are slidably connected with the inner walls of the upper side and the lower side of the fixed box.

Preferably, the first circular ring is radially movably connected with the fixed shaft.

Preferably, in the safe and stable traveling crane, the second ring is radially movably connected with the fixed shaft.

Preferably, the safe and stable traveling crane is characterized in that the diameter of the rolling ball is smaller than the height of the baffle.

The utility model has the advantages and beneficial effects that:

1. when the crane is used, before hoisting, a heavy object is hung, the hung heavy object is sealed in a closed loop structure by the double hooks and the anti-falling rod, and the hook can not be influenced even if swinging. When in lifting, the internal closed-loop lines of the two hooks are wavy, so that the rope of the hung heavy object can naturally slide to the internal low recess along the arc lines of the hooks, and the heavy object cannot be unhooked when being completely lifted, so that the lifting device is safer and more reliable;

2. when the driving starts or stops transversely, the rolling ball can roll in the fixed box, and one of the baffles is touched at the moment, so that the corresponding spring is compressed, the compression amount of the spring is fed back to the pressure sensor, the pressure sensor feeds back a signal to the driving motor, the driving motor starts, and the driving slider is driven to move for a certain displacement, so that the swing amplitude is balanced and buffered, and the running is more stable. The crane has stable operation, can prevent unhooking, and is safe and reliable.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the hook structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 2 at I;

FIG. 4 is a perspective view of the torsion spring;

fig. 5 is a partial enlarged view of fig. 1 at ii.

In the figure: 1. a base; 2. a support arm; 3. a stabilizing device; 31. a fixing box; 32. a spring; 33. a cavity; 34. a rolling ball; 35. a baffle plate; 4. a hanging block; 5. a fixed shaft; 6. a first circular ring; 7. a second circular ring; 8. hooking; 9. an anti-drop rod; 10. a torsion spring; 11. a stopper; 12. a first circular hole; 13. a second circular hole; 14. a traveling crane slide block; 15. a steel cord; 16. a cross member.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the following description, together with the accompanying drawings and the embodiments of the present invention, will be made to clearly describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a safe and stable traveling crane comprises two bases 1, and supporting arms 2 are fixed on the upper sides of the two bases 1. A beam 16 is connected between the two supporting arms 2, a traveling crane sliding block 14 is arranged on the beam 16, and the traveling crane sliding block 14 is driven by a traveling crane motor. The lower side of the traveling crane sliding block 14 is connected with a steel cable 15, and the lower end of the steel cable 15 is connected with a hanging block 4. A fixed shaft 5 is fixedly welded on the hanging block 4, a first circular ring 6 and a second circular ring 7 are embedded in the outer portion of the fixed shaft 5, and hooks 8 are fixed on the lower sides of the first circular ring 6 and the second circular ring 7. The two hooks 8 are in the same plane. The first circular ring 6 is movably connected with the fixed shaft 5 in the radial direction, the second circular ring 7 is movably connected with the fixed shaft 5 in the radial direction, and the tail ends of the two hooks 8 are always abutted under the action of gravity because the hooks 8 have large dead weight.

As shown in fig. 2, 3 and 4, the ends of the two hooks 8 are hinged with anti-falling rods 9, and the anti-falling rods 9 protrude out of the ends of the hooks 8. Torsional spring 10 is still installed to the end of couple 8, and the side of anticreep pole 9 is provided with second round hole 13, and the one end embedding of torsional spring 10 is in the inside of second round hole 13, and the side of anticreep pole 9 is provided with first round hole 12, and the other end embedding of torsional spring 10 is in the inside of first round hole 12. The tail ends of the two hooks 8 are fixed with a stop block 11 which is suitable for limiting the anti-falling rod 9. Because the two hooks 8 are always abutted, and the torsion spring 10 gives the anti-falling rod 9 a torsion force towards one side of the stop block 11, the two anti-falling rods 9 are stressed mutually when the two hooks 8 are abutted, so that the torsion force given by the torsion spring 10 is balanced. Therefore, before hoisting, only the heavy object needs to be hung, the hung heavy object is enclosed in a closed loop structure by the double hooks and the anti-falling rod 9, and the hook 8 cannot be influenced even if swinging. When in lifting, the internal closed-loop lines of the two hooks 8 are wavy, so that the rope of the hung heavy object can naturally slide to the internal low concave along the arc line of the hooks, and the heavy object can not be unhooked when being completely lifted.

As shown in fig. 1 and 5, a stabilizing device 3 is fixed on the side surface of the hanging block 4, the stabilizing device 3 comprises a fixing box 31, a cavity 33 is arranged inside the fixing box 31, springs 32 are connected to the inner walls of the two sides of the fixing box 31, the other ends of the two springs 32 are connected to baffle plates 35, and the two baffle plates 35 are connected with the inner walls of the upper side and the lower side of the fixing box 31 in a sliding manner. A rolling ball 34 is provided between the two flaps 35. The rolling ball 34 has a diameter smaller than the height of the apron 35. The spring 32, the stop 35 and the roller ball 34 are located within the cavity 33. When the traveling crane is started or stopped in a transverse mode, due to inertia, the hanging block 4 on the lower side and the heavy object swing, the rolling ball 34 rolls in the fixing box 31 at the moment, one baffle 35 is touched at the moment, the corresponding spring 32 is compressed, the compression amount of the spring is fed back to the pressure sensor at the moment, the pressure sensor feeds back a signal to the traveling crane motor, the traveling crane motor is started, the traveling crane sliding block 14 is driven to move for a certain displacement, and therefore the balance and the swing amplitude are relieved. Specifically, if the hanging block 4 swings to the left, the rolling ball 34 will roll to the right, and as mentioned above, the traveling motor will drive the traveling block 14 to move to the left, and the larger the compression deformation of the spring 32 is, the larger the swing amplitude is, the larger the displacement of the traveling block 14 is, so as to balance and buffer the swing amplitude.

When the crane is used, before hoisting, a heavy object is hung, the hung heavy object is sealed in a closed loop structure by the double hooks and the anti-falling rod 9, and the hook 8 can not be influenced even if swinging. When in lifting, the internal closed-loop lines of the two hooks 8 are wavy, so that the rope of the hung heavy object can naturally slide to the internal low recess along the arc line of the hook, and the heavy object can not be unhooked when being completely lifted, so that the lifting hook is safer and more reliable; when the traveling crane starts or stops transversely, the rolling ball 34 rolls in the fixed box 31, at the moment, one baffle 35 is touched, the corresponding spring 32 is compressed, the compression amount of the spring is fed back to the pressure sensor, the pressure sensor feeds back a signal to the traveling crane motor, the traveling crane motor starts, the traveling crane slider 14 is driven to move for a certain displacement, the balance and the buffer swing amplitude are removed, and the operation is more stable. The crane has stable operation, can prevent unhooking, and is safe and reliable.

In the description of the present invention, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, only for convenience of description and simplification of description, but not for indicating or implying that the referred device or element must have a specific orientation and a specific orientation configuration and operation, and thus, should not be construed as limiting the present invention. Furthermore, "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be directly connected or indirectly connected through an intermediate member, or they may be connected through two or more elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

While one embodiment of the present invention has been described in detail, the description is only a preferred embodiment of the present invention, and should not be considered as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims

1. The utility model provides a driving of safety and stability, includes two bases (1), two the upside of base (1) all is fixed with support arm (2), two be connected with crossbeam (16) between support arm (2), be provided with driving slider (14), its characterized in that on crossbeam (16): the lower side of the traveling crane sliding block (14) is connected with a steel cable (15), the lower end of the steel cable (15) is connected with a hanging block (4), a fixed shaft (5) is fixed on the hanging block (4), a first circular ring (6) and a second circular ring (7) are embedded in the outer portion of the fixed shaft (5), hooks (8) are fixed on the lower sides of the first circular ring (6) and the second circular ring (7), anti-falling rods (9) are hinged to the tail ends of the two hooks (8), torsion springs (10) are further installed at the tail ends of the hooks (8), second circular holes (13) are formed in the side faces of the anti-falling rods (9), one ends of the torsion springs (10) are embedded in the second circular holes (13), first circular holes (12) are formed in the side faces of the anti-falling rods (9), and the other ends of the torsion springs (10) are embedded in the first circular holes (12), the side of hanging piece (4) is fixed with stabilising arrangement (3), stabilising arrangement (3) are including fixed box (31), the inside of fixed box (31) is provided with cavity (33), all be connected with spring (32) on the both sides inner wall of fixed box (31), two the other end of spring (32) all is connected with baffle (35), two be provided with rolling ball (34) between baffle (35).

2. A safe and stable driving according to claim 1, characterized in that: the tail ends of the two hooks (8) are respectively fixed with a stop block (11) suitable for limiting the anti-falling rod (9).

3. A safe and stable driving according to claim 1, characterized in that: the two baffles (35) are in sliding connection with the inner walls of the upper side and the lower side of the fixed box (31).

4. A safe and stable driving according to claim 1, characterized in that: the first circular ring (6) is radially and movably connected with the fixed shaft (5).

5. A safe and stable driving according to claim 1, characterized in that: the second circular ring (7) is radially and movably connected with the fixed shaft (5).

6. A safe and stable driving according to claim 1, characterized in that: the diameter of the rolling ball (34) is smaller than the height of the baffle (35).