Emergency driving device of winding drum

Abstract

The utility model discloses an emergency driving device of a winding drum in the technical field of emergency management of cranes, and aims to solve the problem that a measure for lowering a load to eliminate potential safety hazards is lacked when a crane breaks down in the prior art. The device comprises a mounting shell which is detachably connected with a rotary table; the emergency shaft comprises a first section, a first bearing and a spline, the first section is rotationally connected with the mounting shell through the first bearing, and the spline is in torque transmission connection with the first section; the first gear is installed on the emergency shaft, and the first gear is used for being meshed with a winding drum gear installed on the rotary table; and the emergency power source is used for torque transmission connection through the spline. The winding drum gear is detachably installed on the rotary table with the installation shell as a support, when the crane breaks down, the winding drum gear is driven to rotate through the first gear, load lowering is achieved, and potential safety hazards are eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of emergency driving device of reel, belong to crane emergency management technical field. BACKGROUND

[0002] In the engineering machinery industry, the use of wheeled crane is more and more widely. The most important link in the use of crane is to lift heavy objects, and this action is realized by the lifting mechanism with winch reducer as the core. The lifting mechanism is driven by hydraulic motor through electrical control. However, when electrical control failure, hydraulic system failure and reducer failure occur during lifting, the load will be stranded in the air, and the lifting operation cannot continue. Only after repair can the load be lowered, which brings great safety hazards.

[0003] Therefore, when the existing crane fails, there is no measure to eliminate safety hazards by lowering the load. INVENTION CONTENTS

[0004] The purpose of the present application is to overcome the shortcomings of the prior art and provide an emergency driving device of reel that can control the reel to lower the load when the crane fails.

[0005] To achieve the above purpose, the technical scheme is as follows:

[0006] The present application provides an emergency driving device of reel, comprising,

[0007] The mounting shell is detachably connected with the turntable.

[0008] The emergency shaft comprises a first segment, a first bearing and a spline, the first segment is rotatably connected with the mounting shell through the first bearing, and the spline is torsionally connected with the first segment.

[0009] The first gear is installed on the emergency shaft, and the first gear is used to engage with the reel gear installed on the turntable.

[0010] The emergency power source is torsionally connected with the first bearing through the spline.

[0011] In some embodiments of the present application, the emergency shaft further comprises a second segment connected with the first segment, the radius of the second segment is greater than that of the first segment, the spline is arranged at one end of the second segment away from the first segment, and the second segment is rotatably connected with the mounting shell by being sleeved into the first bearing.

[0012] The mounting shell is provided with openings for connecting the first segment and the second segment and for torsionally connecting the emergency power source and the spline.

[0013] In some embodiments of the present application, the mounting shell comprises a cover plate and a mounting plate connected with the cover plate; the mounting plate is matched with the outer wall of the rotary table, and the mounting plate is used for detachable connection with the rotary table; the inner wall of the cover plate is matched with the outer wall of the first bearing, and the second section is rotationally connected with the cover plate through the first bearing.

[0014] In some embodiments of the present application, the inner part of the cover plate forms an anti-disengagement cavity.

[0015] The emergency shaft further comprises an anti-disengagement plate, which is rotationally connected with the second section and is clamped in the anti-disengagement cavity.

[0016] In some embodiments of the present application, a first annular sealing plate and a second annular sealing plate are further included.

[0017] The mounting shell comprises a first opening for connecting the first section with the second section and a second opening for connecting the emergency power source with the spline torque transmission; the cover plate is provided with a first threaded hole, and the anti-disengagement plate is provided with a second threaded hole; the first annular sealing plate is mounted on the first opening by screwing the first threaded hole with a first bolt, and the second annular sealing plate is mounted on the second opening by screwing the second threaded hole with a second bolt.

[0018] In some embodiments of the present application, the emergency power source is an emergency motor.

[0019] In some embodiments of the present application, the emergency power source is an emergency hydraulic motor.

[0020] In some embodiments of the present application, the end of the first section is provided with a mounting hole, and the rotation center of the first gear is provided with a latch; the first gear is installed on the first section by clamping the mounting hole through the latch.

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] The emergency driving device of the winding drum provided by the present application is detachably mounted on the rotary table with the mounting shell as the support; when the crane fails, the winding drum gear is driven to rotate by the first gear, so as to realize the lowering of the load and eliminate the safety hazard. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0024] Figure 1 is a structure schematic diagram of the emergency driving device of the reel provided by the embodiment installed on the rotary table;

[0025] Figure 2 is Figure 1 a structure schematic diagram of the first gear meshing with the reel gear;

[0026] Figure 3 is Figure 2 a side view of

[0027] Figure 4 is a structure schematic diagram of the installation of the shell in the emergency driving device of the reel provided by the embodiment;

[0028] Figure 5 is Figure 4 a side view of

[0029] Figure 6 is Figure 4 a side view of the other side;

[0030] Figure 7 is a structure schematic diagram of the emergency shaft in the emergency driving device of the reel provided by the embodiment;

[0031] Figure 8 is a structure schematic sectional view of the emergency driving device of the reel provided by the embodiment without installing the second annular sealing plate;

[0032] Figure 9 is a structure schematic sectional view of the emergency driving device of the reel provided by the embodiment with installing the second annular sealing plate;

[0033] Figure 10 is a structure schematic diagram of the emergency driving device of the reel provided by the embodiment with installing the emergency hydraulic motor;

[0034] Figure 11 is a structure schematic diagram of the emergency driving device of the reel provided by the embodiment with installing the emergency motor;

[0035] in the figure:

[0036] 1, the first gear;

[0037] 2, the emergency shaft; 2.1, the mounting hole; 2.2, the first section; 2.3, the second section; 2.4, the first bearing; 2.5, the first bolt; 2.6, the second bolt; 2.7, the spline; 2.8, the anti-drop plate;

[0038] 3, the installation shell; 3.1, the mounting plate; 3.2, the cover plate; 3.3, the first threaded hole; 3.4, the second threaded hole; 3.5, the anti-drop cavity;

[0039] 4.1, emergency motor; 4.2, emergency hydraulic motor;

[0040] 5.1, first ring-shaped sealing plate; 5.2, second ring-shaped sealing plate;

[0041] 6.1, rotary table; 6.2, drum gear. DETAILED DESCRIPTION

[0042] The technical solutions in the application will be described clearly and completely below in combination with the drawings in the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments. The description of the at least one example embodiment is actually only illustrative, but not as any limitation on the application and its application or use. Embodiment one

[0043] The embodiment provides an emergency driving device of a drum to solve the problem that there is no measure to lower the load to eliminate the hidden danger when a crane fails in the prior art.

[0044] Reference Figures 1 to 11 The emergency driving device of the drum provided by the embodiment comprises a mounting shell 3, and the mounting shell 3 is detachably connected with a rotary table 6.1.

[0045] An emergency shaft 2, the mounting shell 3 comprises a first section 2.2, a first bearing 2.4 and a spline 2.7, the first section 2.2 is rotationally connected with the mounting shell 3 through the first bearing 2.4, and the spline 2.7 is torque-connected with the first section 2.2.

[0046] A first gear 1, the first gear 1 is installed on the emergency shaft 2, and the first gear 1 is used to mesh with a drum gear 6.2 installed on the rotary table 6.1.

[0047] An emergency power source, used to be torque-connected through the spline 2.7.

[0048] Non-unique use method:

[0049] The mounting shell 3 is installed on the rotary table 6.1, and reference is made to Figure 1 , Figure 2 and Figure 3 , and the first gear 1 is meshed with the drum gear 6.2. The output shaft of the emergency power source is connected with the spline 2.7, the first section 2.2 is driven to rotate through the spline 2.7, the first gear 1 drives the drum gear 6.2 to rotate under the driving of the first section 2.2, and the load hung by the drum can be lowered to eliminate the hidden danger. When it is daily stored, reference is made to Figure 1 , only the mounting shell 3 is retained on the rotary table 6.1, and the emergency power source is installed only when needed.

[0050] The emergency driving device of the winding drum is detachably installed on the rotating table 6.1 by taking the mounting shell 3 as the support. When the crane fails, the winding drum gear 6.2 is driven to rotate by the first gear 1, the load is lowered, and the safety hazard is eliminated. Embodiment two

[0051] The emergency driving device of the winding drum is detachably installed on the rotating table 6.1 by taking the mounting shell 3 as the support. When the crane fails, the winding drum gear 6.2 is driven to rotate by the first gear 1, the load is lowered, and the safety hazard is eliminated.

[0052] Reference Figure 7 、 Figure 8 and Figure 9 , as one of the embodiments, the emergency shaft 2 further comprises a second section 2.3 connected with the first section 2.2, the radius of the second section 2.3 is greater than that of the first section 2.2, so as to increase the rotational inertia of the second section 2.3, the spline 2.7 is arranged at one end of the second section 2.3 away from the first section 2.2, and the second section 2.3 is rotatably connected with the mounting shell 3 by being sleeved into the first bearing 2.4; the mounting shell 3 is provided with openings for connecting the first section 2.2 and the second section 2.3, and for connecting the emergency power source and the spline 2.7. The mounting shell 3 is used for protecting the second section 2.3 and the first bearing 2.4, the spline 2.7 indirectly outputs torque to the first section 2.2 through the second section 2.3, and the second section 2.3 uses its own rotational inertia to assist the rotational stability of the first section 2.2 and the first gear 1.

[0053] As one of the embodiments, reference is made to Figure 4 、 Figure 5 、 Figure 6 、 Figure 8 and Figure 9 , the mounting shell 3 comprises a cover plate 3.2 and a mounting plate 3.1 connected with the cover plate 3.2; the mounting plate 3.1 is matched with the outer wall of the rotating table 6.1, so as to facilitate the installation of the mounting plate 3.1 on the rotating table 6.1, and the mounting plate 3.1 is used for detachably connecting with the rotating table 6.1; the inner wall of the cover plate 3.2 is matched with the outer wall of the first bearing 2.4, and the second section 2.3 is rotatably connected with the cover plate 3.2 through the first bearing 2.4.

[0054] As one of the embodiments, the mounting plate 3.1 is detachably connected with the rotating table 6.1 by the third bolt.

[0055] Reference Figure 8 and Figure 9As one of the embodiments, the cover plate 3.2 is internally formed with a anti-falling cavity 3.5; the emergency shaft 2 further comprises an anti-falling plate 2.8, which is rotationally connected with the second section 2.3 and is clamped in the anti-falling cavity 3.5. The anti-falling plate 2.8 helps to firmly fix the second section 2.3 in the cover plate 3.2, preventing the second section 2.3 from falling out under the action of the emergency power source and the shaft load of the first gear 1.

[0056] With reference to Figure 8 and Figure 9 As one of the embodiments, the emergency driving device of the winding drum further comprises a first ring-shaped sealing plate 5.1 and a second ring-shaped sealing plate 5.2; the mounting shell 3 comprises a first opening for connecting the first section 2.2 with the second section 2.3 and a second opening for torque connection between the emergency power source and the spline 2.7; the cover plate 3.2 is provided with a first threaded hole 3.3, and the anti-falling plate 2.8 is provided with a second threaded hole 3.4; the first ring-shaped sealing plate 5.1 is mounted on the first opening by screwing the first threaded hole 3.3 with the first bolt 2.5, and the second ring-shaped sealing plate 5.2 is mounted on the second opening by screwing the second threaded hole 3.4 with the second bolt 2.6. The first ring-shaped sealing plate 5.1 and the second ring-shaped sealing plate 5.2 prevent the structure from falling out and the entry of foreign matters.

[0057] As one of the embodiments, with reference to Figure 7 The end of the first section 2.2 is provided with a mounting hole 2.1, and the rotation center of the first gear 1 is provided with a latch, and the first gear 1 is mounted on the first section 2.2 by clamping the latch into the mounting hole 2.1.

[0058] As one of the embodiments, with reference to Figure 10 and Figure 11 The emergency power source is an emergency motor 4.1 or an emergency hydraulic motor 4.2

[0059] The emergency driving device of the winding drum provided by the embodiment improves the use safety.

[0060] In the description of the utility model, it is necessary to understand that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" and the like can explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0061] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "mounting", "connection", "connection", "set in", "provided with", "located", "mounted", "set", and the like should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances. "Hinged" includes "rotary connection".

[0062] The above is only the preferred embodiment of the utility model, and it should be pointed out that for ordinary skilled persons in the art, without departing from the technical principles of the utility model, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the utility model.

Claims

1. An emergency drive for a reel, characterized in that Comprising, a mounting shell (3) detachably connected with a turntable (6.1); an emergency shaft (2) comprising a first section (2.2), a first bearing (2.4) and a spline (2.7), the first section (2.2) being rotatably connected with the mounting shell (3) through the first bearing (2.4), the spline (2.7) being in torque connection with the first section (2.2); a first gear (1) mounted on the emergency shaft (2), the first gear (1) being used for engaging with a drum gear (6.2) mounted on the turntable (6.1); an emergency power source in torque connection with the first bearing (2.4) through the spline (2.7).

2. An emergency drive for a reel according to claim 1, wherein, The emergency shaft (2) further comprises a second section (2.3) connected with the first section (2.2), the second section (2.3) having a larger radius than the first section (2.2), the spline (2.7) being arranged at an end of the second section (2.3) away from the first section (2.2), the second section (2.3) being rotatably connected with the mounting shell (3) by being sleeved in the first bearing (2.4); The mounting shell (3) is provided with openings for connecting the first section (2.2) and the second section (2.3) and for torque connection between the emergency power source and the spline (2.7), respectively.

3. An emergency drive for a reel according to claim 2, wherein, The mounting shell (3) comprises a cover plate (3.2) and a mounting plate (3.1) connected with the cover plate (3.2); the mounting plate (3.1) is matched with an outer wall of the turntable (6.1), and the mounting plate (3.1) is used for detachably connecting with the turntable (6.1); an inner wall of the cover plate (3.2) is matched with an outer wall of the first bearing (2.4), and the second section (2.3) is rotatably connected with the cover plate (3.2) through the first bearing (2.4).

4. An emergency drive for a reel according to claim 3, wherein, An anti-disengagement cavity (3.5) is formed inside the cover plate (3.2); The emergency shaft (2) further comprises an anti-disengagement plate (2.8) rotatably connected with the second section (2.3), the anti-disengagement plate (2.8) being clamped in the anti-disengagement cavity (3.5).

5. An emergency drive for a reel according to claim 4, wherein, Further comprising a first annular sealing plate (5.1) and a second annular sealing plate (5.2); The mounting shell (3) comprises a first opening for connecting the first section (2.2) and the second section (2.3) and a second opening for torque connection between the emergency power source and the spline (2.7); the cover plate (3.2) is provided with a first threaded hole (3.3), and the anti-disengagement plate (2.8) is provided with a second threaded hole (3.4); the first annular sealing plate (5.1) is mounted on the first opening by being threadedly connected with the first threaded hole (3.3) through a first bolt (2.5), and the second annular sealing plate (5.2) is mounted on the second opening by being threadedly connected with the second threaded hole (3.4) through a second bolt (2.6).

6. The emergency drive of claim 1, wherein The emergency power source is an emergency motor (4.1).

7. The emergency drive of claim 1, wherein The emergency power source is an emergency hydraulic motor (4.2).

8. The emergency drive of claim 1, wherein, The end of the first section (2.2) is provided with a mounting hole (2.1), and the rotation center of the first gear (1) is provided with a latch, and the first gear (1) is installed on the first section (2.2) by clamping the latch into the mounting hole (2.1).

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