Novel combined type crane

Abstract

The utility model discloses a novel combined type crane which comprises racks on two sides, a bridge frame capable of moving on the racks and a trolley frame arranged on the bridge frame in a sliding mode, a double-winding-drum hoisting mechanism is arranged on the trolley frame, and a connecting beam capable of moving along a sliding rail on the lower end face of the trolley frame is arranged at the lower end of the trolley frame. A single-winding-drum hoisting mechanism is installed at the lower end of the connecting beam and comprises a driving assembly, a winding drum assembly and a lifting hook assembly, the lifting hook assembly comprises a lifting part, a supporting part and a limiting part, the lifting part can rotate relative to the supporting part after the lifting part and the supporting part are combined, and the lifting part can rotate relative to the supporting part after the supporting part and the limiting part are combined. The limiting part can limit rotation of the hoisting part. According to the utility model, the rotating state and the non-rotating state of the lifting hook piece can be conveniently switched.

Description

TECHNICAL FIELD

[0001] The utility model relates to a crane technical field especially relates to a novel composite row hangs. BACKGROUND

[0002] The crane is also called "row car", "hoist", "sky car", and refers to various cranes, especially similar to the structure of the portal crane, and is widely used in the fields of industry and construction. The existing row car lifting hook usually adopts a free rotating type, but for some special working conditions of hoisting operation (such as hoisting rolling steel, heavy roller, spare roller, etc.), due to the limited hoisting space, the row car lifting hook needs to be kept in a non-rotating state to avoid collision between the hoisted heavy object and other equipment.

[0003] Through retrieval, the utility model patent document with the announcement number CN216889720U discloses a row car lifting hook, which comprises: a fixing assembly for fixed installation with a row car; a lifting hook body rotatably installed on the fixing assembly along its own axis; a locking assembly arranged on the fixing assembly and the lifting hook body; when the relative position between the lifting hook body and the fixing assembly is fixed, the lifting hook body is in a locked state, and when the lifting hook body and the fixing assembly can rotate relative to each other, the lifting hook body is in a rotating state, and the locking assembly is used to switch the lifting hook body between the rotating state and the locked state.

[0004] The above-mentioned row car lifting hook is relatively troublesome in switching between the rotating state and the non-rotating state, and needs to adjust the position of the positioning pin several times, which is inconvenient to operate. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a novel composite row hangs, which is convenient for switching the rotating and non-rotating states of the lifting hook.

[0006] The utility model adopts the following technical scheme:

[0007] A novel composite row hangs, which comprises racks on both sides, a bridge frame movable on the racks, and a trolley frame slidingly arranged on the bridge frame, wherein a double-drum hoisting mechanism is arranged on the trolley frame, a connecting beam movable along the slide rail on the lower end surface of the trolley frame is arranged at the lower end of the trolley frame, a single-drum hoisting mechanism is installed at the lower end of the connecting beam, the single-drum hoisting mechanism comprises a driving assembly, a drum assembly and a lifting hook assembly, the lifting hook assembly comprises a lifting part, a supporting part and a limiting part, the lifting part can rotate relative to the supporting part after the combination of the lifting part and the supporting part, and the limiting part can limit the rotation of the lifting part after the combination of the supporting part and the limiting part.

[0008] Optionally, the lifting part comprises a lifting hook, the supporting part comprises a supporting plate and a pressing plate, and the limiting part comprises a cover,

[0009] The vertical axial surface of the hook member is provided with an annular clamping groove I, and the vertical axial surface of the hook member is provided with a threaded groove, and a nut is installed at the threaded groove, and the vertical axial surface of the hook member penetrates the support plate and the pressing plate and is rotationally matched.

[0010] Optionally, the support plate and the pressing plate are fixedly connected together through the bolt members at the four corner positions, and the cover is arranged above the pressing plate and is matched with the pressing plate.

[0011] Optionally, the lower surface of the support plate is symmetrically provided with a fixed plate, the upper surface of the fixed plate is symmetrically and fixedly provided with a T-shaped clamping block, the lower surface of the support plate is provided with a T-shaped clamping groove II at a position corresponding to the clamping block, the clamping block and the clamping groove II are matched, and the outer side surface of the fixed plate is provided with a semicircular groove at a position corresponding to the vertical axial surface of the hook member, the diameter of the semicircular groove is matched with the diameter of the annular clamping groove I, and the fixed plate can be clamped into the annular clamping groove I.

[0012] Optionally, the support plate is fixedly provided with a clamping ring I, and a clamping ring II is arranged above the clamping ring I, and the surfaces corresponding to the clamping ring I and the clamping ring II are both provided with clamping teeth.

[0013] Optionally, the pressing plate is composed of a horizontal plate and a vertical cylinder, the horizontal plate is arranged above the cylinder, the upper surface of the horizontal plate is provided with an annular groove I, the lower surface of the cylinder is provided with a cylindrical groove, the diameter of the cylindrical groove is the same as the outer diameter of the annular groove I, the inner bottom surface of the annular groove I is symmetrically provided with an arc-shaped groove, and the arc-shaped groove is communicated with the cylindrical groove.

[0014] Optionally, the clamping ring II is arranged in the cylindrical groove, the outer diameter of the clamping ring II is the same as the diameter of the cylindrical groove, the clamping ring II can rotate and vertically slide in the cylindrical groove, the inner circle of the clamping ring II is provided with a rotating ring, the rotating ring is fixed on the vertical axial surface of the hook member, and the upper end surface of the rotating ring is rotationally arranged on the lower surface of the horizontal plate.

[0015] Optionally, the upper surface of the support plate and the lower surface of the rotating ring are both provided with an annular sliding groove, and a plurality of rolling balls are arranged in the annular sliding groove.

[0016] Optionally, the upper portion of the clamping ring II is provided with a spring member, the spring member comprises a spring body, a support ring I and a support ring II, the spring body is arranged between the support ring I and the support ring II, the support ring I is arranged above the support ring II, the support ring I and the support ring II are both made of metal, the support ring I and the support ring II are both arranged on the surface of the rotating ring and can relatively rotate and slide, and the outer diameter of the support ring I is smaller than the outer diameter of the support ring II.

[0017] Optionally, the inner wall of the cover is provided with a threaded groove, the inner wall of the annular groove I is also provided with a threaded groove, the cover can be inserted into the annular groove I and be screwed, the lower surface of the cover is fixedly provided with two symmetrical arc-shaped top blocks, the inner circle and the outer circle of the arc-shaped top block are matched with the arc-shaped groove, and the rotation angle of the arc-shaped top block is smaller than the rotation angle of the arc-shaped groove.

[0018] In summary, the utility model has the following beneficial effects:

[0019] 1、 the utility model discloses, after inserting the cover into annular groove I, arc-shaped top block enters arc-shaped groove, rotates the cover, and arc-shaped top block will abut against support ring II, so that snap ring II cannot move up and down, at this moment, the rotation of the lifting hook piece is limited, so that the lifting hook piece does not rotate freely in the hoisting, lifting and placing process, and when the rotation state of the lifting hook piece is adjusted subsequently, only need to be switched by screwing the cover, which is simple in operation and good in limiting effect.

[0020] 2、 the utility model discloses, through the connecting beam and single-drum hoisting mechanism set up at the lower end of the trolley frame, small weight, small size hoisting workpieces can be hoisted, and the single-drum hoisting mechanism at this place is closer to the ground, can reduce the distance between the hoisting workpiece and the lifting hook assembly, reduce the time of the lifting hook assembly descending, cooperate with the double-drum hoisting mechanism at the upper portion to increase the lifting range of the travelling crane. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the front view of the overall structure structure of the utility model;

[0022] Figure 2 It is the side view of the overall structure structure of the utility model;

[0023] Figure 3 It is the structure schematic diagram of the single-drum hoisting mechanism of the utility model;

[0024] Figure 4 It is the structure schematic diagram of the lifting hook assembly of the utility model Figure 1 ;

[0025] Figure 5 It is the structure schematic diagram of the lifting hook assembly of the utility model Figure 2 ;

[0026] Figure 6 It is the sectional view of the lifting hook assembly of the utility model Figure 1 ;

[0027] Figure 7 It is the partial structure schematic diagram of the lifting hook assembly of the utility model;

[0028] Figure 8The utility model discloses a cross section of the hook assembly Figure 2 .

[0029] In the drawing, 1, frame, 2, bridge, 3, double drum hoisting mechanism, 4, connecting beam, 5, single drum hoisting mechanism, 6, hook assembly, 61, hook piece, 611, annular clamping groove one, 62, support plate, 621, clamping groove two, 63, pressing plate, 631, annular groove one, 632, cylindrical groove, 633, arc-shaped groove, 634, rotating ring, 635, sliding groove, 64, cover, 641, arc-shaped top block, 65, fixed plate, 651, clamping block, 66, nut, 67, spring piece, 671, support ring one, 672, spring body, 673, support ring two, 68, clamping ring one, 681, clamping ring two, 682, sliding block, 69, ball. DETAILED DESCRIPTION

[0030] The principles and spirits of the utility model are explained in detail below with reference to several representative embodiments of the utility model.

[0031] Please refer to Figures 1-8 , the utility model will be described in detail below in combination with the drawings and examples:

[0032] As Figures 1-3 shown, a novel composite row crane includes two frames 1, a bridge 2 that can move on the frame 1, and a trolley frame that is slidingly arranged on the bridge 2. The trolley frame is provided with a double drum hoisting mechanism 3. The double drum hoisting mechanism 3 has greater lifting capacity compared to a single drum mechanism. A connecting beam 4 that can move along the sliding rail of the lower end surface of the trolley frame is arranged at the lower end of the trolley frame. A single drum hoisting mechanism 5 is installed at the lower end of the connecting beam 4. The single drum hoisting mechanism 5 includes a driving assembly, a drum assembly, and a hook assembly 6. Through the connecting beam 4 and the single drum hoisting mechanism 5 arranged at the lower end of the trolley frame, hoisting operations can be performed on small-weight and small-size hoisted workpieces. The single drum hoisting mechanism 5 at this position is closer to the ground, which can reduce the distance between the hoisted workpiece and the hook assembly 6, reduce the time for the hook assembly 6 to descend, and increase the lifting range of the row crane in cooperation with the double drum hoisting mechanism 3 above. The above-mentioned bridge 2, trolley frame, double drum hoisting mechanism 3, driving assembly, and drum assembly are all prior art, and will not be described in detail here.

[0033] As Figures 4-8 shown in the embodiment, the hook assembly 6 includes a lifting part and a limiting part. After the lifting part and the limiting part are combined, there are two working states. One is that the lifting part can rotate relative to the limiting part. The other is that the limiting part can limit the rotation of the lifting part.

[0034] The lifting part includes a hook piece 61. The support part includes a support plate 62 and a pressing plate 63. The limiting part includes a cover 64,

[0035] The vertical axis of the hook component 61 is provided with an annular groove 611, and a threaded groove is provided on the vertical axis of the hook component 61. A nut 66 is installed in the threaded groove. The vertical axis of the hook component 61 passes through the support plate 62 and the pressure plate 63 and is rotatably engaged.

[0036] The support plate 62 and the pressure plate 63 are fixedly connected together by bolts at the four corners. The cover 64 is set above the pressure plate 63 and cooperates with the pressure plate 63.

[0037] like Figures 4-6 As shown, in this embodiment, a fixing plate 65 is symmetrically arranged on the lower surface of the support plate 62, and a T-shaped locking block 651 is symmetrically fixed on the upper surface of the fixing plate 65. A T-shaped locking groove 621 is opened on the lower surface of the support plate 62 at a position corresponding to the locking block 651. The locking block 651 and the locking groove 621 are adapted to each other. A semi-circular groove is opened on the outer side of the fixing plate 65 at a position corresponding to the vertical axis of the hook member 61. The diameter of the semi-circular groove is adapted to the diameter of the annular locking groove 611, and the fixing plate 65 can be inserted into the annular locking groove 611.

[0038] Specifically, after the fixing plates 65 on both sides are installed on the lower surface of the support plate 62, the upper and lower positions of the hook 61 are limited by the fixing plates 65. At this time, the hook 61 can rotate freely relative to the fixing plates 65 and the support plate 62.

[0039] like Figures 5-6 As shown, in this embodiment, a retaining ring 68 is fixedly provided inside the support plate 62, and a retaining ring 681 is provided at a corresponding position above the retaining ring 68. The surfaces of the retaining ring 68 and the retaining ring 681 are provided with retaining teeth, which can make the retaining ring 68 and the retaining ring 681 mesh.

[0040] like Figures 5-6 As shown, in this embodiment, the pressure plate 63 is composed of a horizontal plate and a vertical cylinder. The horizontal plate is above the cylinder. An annular groove 631 is formed on the upper surface of the horizontal plate, and a cylindrical groove 632 is formed on the lower surface of the cylinder. The diameter of the cylindrical groove 632 is the same as the outer diameter of the annular groove 631. An arc-shaped groove 633 is symmetrically formed on the inner bottom surface of the annular groove 631, and the arc-shaped groove 633 communicates with the cylindrical groove 632.

[0041] The second retaining ring 681 is disposed in the cylindrical groove 632. The outer diameter of the second retaining ring 681 is the same as the diameter of the cylindrical groove 632. The second retaining ring 681 can rotate and slide vertically in the cylindrical groove 632. A rotating ring 634 is disposed in the inner ring of the second retaining ring 681. The rotating ring 634 is fixed on the vertical shaft surface of the hook 61, and the upper end face of the rotating ring 634 is rotatably disposed on the lower surface of the horizontal plate.

[0042] like Figures 5-6As shown, the upper surface of the support plate 62 and the lower surface of the rotating ring 634 are both provided with annular sliding grooves, and a plurality of balls 69 are circumferentially arranged between the two, which roll in the sliding grooves. The balls 69 can facilitate the free rotation of the rotating ring 634.

[0043] Specifically, after the installation of the pressing plate 63, the support plate 62, the fixed plate 65 and the nut 66 is completed, the rotating ring 634 and the support plate 62 limit the balls 69, which facilitates the free rotation of the rotating ring 634 above the balls 69. The nut 66 and the fixed plate 65 are used to limit the up and down movement of the hook member 61, so that the hook member 61 can only rotate circumferentially along the vertical axial surface direction of the hook member 61, which facilitates the hook member 61 to complete the hoisting process of the hoisted workpiece.

[0044] As shown in Figures 5-6 The upper end surface of the snap ring two 681 is provided with an annular gasket through bolt fixing, and the upper side of the annular gasket is provided with a spring member 67. The spring member 67 facilitates the reset of the snap ring two 681 after the up and down movement.

[0045] As shown in Figures 5-6 The inner ring of the snap ring two 681 is circumferentially fixed with a plurality of sliding blocks 682, and the outer ring of the rotating ring 634 is circumferentially provided with a plurality of sliding grooves 635. The sliding blocks 682 are matched with the sliding grooves 635, and the sliding blocks 682 slide in the sliding grooves 635.

[0046] As shown in Figures 5-6 The spring member 67 includes a spring body 672, a support ring one 671 and a support ring two 673. The spring body 672 is arranged between the support ring one 671 and the support ring two 673. The support ring one 671 is arranged above the support ring two 673. The support ring one 671 and the support ring two 673 are both made of metal. The support ring one 671 and the support ring two 673 are arranged on the surface of the rotating ring 634 and can rotate and slide relative to each other. The outer diameter of the support ring one 671 is smaller than that of the support ring two 673.

[0047] Specific, spring piece 67 is installed to the ring two 681 above, and the pressing plate 63 and support plate 62 complete installation cooperation, at this time the spring body 672 will extrude the ring two 681 and the ring one 68 closely mesh together, the upper surface of the support ring one 671 and the lower surface of the horizontal plate of the pressing plate 63 closely adhere, at this time the rotating hook piece 61 makes the rotating ring 634 drive the ring two 681 rotate above the ring one 68, the ring two 681 will move up and down during rotation, at this time the slider 682 slides up and down in the sliding groove 635, the spring body 672 is further compressed, this way is to avoid the hook piece 61 arbitrary free rotation, make its rotation is limited, but does not hinder the hook piece 61 complete 360 ° rotation angle, and thus can better adjust the lifting angle between the hook piece 61 and the hoisting workpiece, facilitate hoisting operation.

[0048] As shown in Figures 5-7 The inner wall of the cover 64 is provided with a threaded groove, and the inner wall of the annular groove one 631 is also provided with a threaded groove, the cover 64 can be inserted into the annular groove one 631 and threaded, two symmetrical arc-shaped top blocks 641 are fixedly arranged on the lower surface of the cover 64, the inner and outer diameters of the arc-shaped top block 641 are matched with the arc-shaped groove 633, and the rotation angle of the arc-shaped top block 641 is less than that of the arc-shaped groove 633.

[0049] Specific, after inserting the cover 64 into the annular groove one 631, the arc-shaped top block 641 enters the arc-shaped groove 633, and after rotating the cover 64, the arc-shaped top block 641 abuts against the support ring two 673, so that the ring two 681 cannot move up and down, at this time the rotation of the hook piece 61 is limited, so that the hook piece 61 does not rotate freely during the lifting, lifting and placing of the lifting process, and when adjusting the rotation state of the hook piece 61 subsequently, only the cover 64 needs to be screwed to realize switching, and the operation is simple and the limiting effect is good.

[0050] Some terms are used in the description and claims to refer to certain components. To the extent a term used in the present description and / or claims is not specifically defined, it is intended to be given its broadest possible interpretation. It is to be understood that the use of certain terms to describe the components is not intended to limit the scope of the disclosure to the components described, but is intended to cover any component which might fall within the broadest possible interpretation of the terms. As used throughout this application, the following terms shall have the following meanings.

[0051] It is to be understood that the terminology "including", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises a... " does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

[0052] The foregoing specification has been set forth to illustrate and describe the preferred embodiments of the present application and is not intended to be exhaustive or to be construed as limiting the application to the precise forms disclosed. As mentioned above, the above specification is presented to enable any person skilled in the art to make and use the application as claimed in the patent. Many modifications and variations of the present application are possible in light of this teaching and the principles of the application disclosed above. It is intended that the scope of the application be defined by the claims appended hereto rather than by the description presented above.

Claims

1. A new type of composite travelling crane, characterized in that: The utility model provides a crane frame, can move bridge frame and slide setting in bridge frame trolley frame, trolley frame is provided with double winding drum hoisting mechanism, is provided with connecting beam that can move along the slide rail of trolley frame lower end surface in trolley frame lower end, the lower end of connecting beam is installed single winding drum hoisting mechanism, and single winding drum hoisting mechanism includes drive assembly, winding drum assembly and hook assembly, and hook assembly includes lifting part, support part and limiting part, after the combination of lifting part and support part, lifting part can rotate relative to support part, after the combination of support part and limiting part, limiting part can limit the rotation of lifting part.

2. A new type of composite travelling crane as claimed in claim 1, characterized in that: The lifting part includes a hook, the limiting part includes a support plate and a pressing plate, the limiting part includes a cover, an annular clamping groove one is formed on the vertical shaft surface of the hook, a threaded groove is formed on the vertical shaft surface of the hook, a nut is installed at the threaded groove, and the vertical shaft surface of the hook penetrates through the support plate and the pressing plate and is rotationally connected.

3. A new type of composite straddle crane according to claim 2, characterized in that: The support plate and the pressing plate are fixedly connected together by bolts at four corners, and the cover is arranged above the pressing plate and is matched with the pressing plate.

4. A new type of composite travelling crane as claimed in claim 2, characterized in that: The lower surface of the support plate is symmetrically provided with a fixing plate, the upper surface of the fixing plate is symmetrically and fixedly provided with a T-shaped clamping block, the lower surface of the support plate is provided with a T-shaped clamping groove two at a position corresponding to the clamping block, the clamping block and the clamping groove two are matched, the outer surface of the fixing plate is provided with a semicircular groove at a position corresponding to the vertical shaft surface of the hook, the diameter of the semicircular groove is matched with the diameter of the annular clamping groove one, and the fixing plate can be clamped into the annular clamping groove one.

5. A new type of composite straddle crane according to claim 2, characterized in that: A clamping ring one is fixedly arranged in the support plate, a clamping ring two is arranged above the clamping ring one, and clamping teeth are arranged on the surfaces of the clamping ring one and the clamping ring two corresponding to each other.

6. A new type of composite straddle crane according to claim 2, characterized in that: The pressing plate is composed of a horizontal plate and a vertical cylinder, the horizontal plate is arranged above the cylinder, an annular groove one is formed on the upper surface of the horizontal plate, a cylindrical groove is formed on the lower surface of the cylinder, the diameter of the cylindrical groove is the same as the outer diameter of the annular groove one, arc-shaped grooves are symmetrically formed on the inner bottom surface of the annular groove one, and the arc-shaped grooves are communicated with the cylindrical groove.

7. A new type of composite straddle crane as claimed in claim 6, characterized in that: The clamping ring two is arranged in the cylindrical groove, the outer diameter of the clamping ring two is the same as the diameter of the cylindrical groove, the clamping ring two can rotate and vertically slide in the cylindrical groove, the inner circle of the clamping ring two is provided with a rotating ring, the rotating ring is fixedly arranged on the vertical shaft surface of the hook, and the upper end surface of the rotating ring is rotationally arranged on the lower surface of the horizontal plate.

8. A new type of composite straddle crane according to claim 7, characterized in that: The upper surface of the support plate and the lower surface of the rotating ring are both provided with annular sliding grooves, and a plurality of rolling balls are arranged in the annular sliding grooves.

9. A new type of composite straddle crane according to claim 7, characterized in that: A spring is arranged above the clamping ring two, the spring includes a spring body, a support ring one and a support ring two, the spring body is arranged between the support ring one and the support ring two, the support ring one is arranged above the support ring two, the support ring one and the support ring two are both made of metal, the support ring one and the support ring two are arranged on the surface of the rotating ring and can relatively rotate and slide, and the outer diameter of the support ring one is smaller than the outer diameter of the support ring two.

10. The new type of composite straddle crane according to claim 6, characterized in that: The inner wall of the cover is provided with a threaded groove, the inner wall of the annular groove one is also provided with a threaded groove, the cover can be inserted into the annular groove one and is threadedly matched, the lower surface of the cover is fixedly provided with two symmetric arc-shaped top blocks, the inner circle and the outer circle of the arc-shaped top blocks are matched with the arc-shaped groove, and the rotation angle of the arc-shaped top blocks is smaller than the rotation angle of the arc-shaped groove.

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