Excavator lower frame carrying device with anti-toppling function

Abstract

The utility model relates to the technical field of excavator lower frame carrying, and discloses an excavator lower frame carrying device with an anti-toppling function, which comprises a frame body, universal wheels are fixedly connected at four corners of the bottom of the frame body, vertical guide rails are fixedly connected between inner walls of two sides of the frame body, and the vertical guide rails are fixedly connected with the universal wheels. A lifting frame is slidably connected between the two vertical guide rails through a sliding table, and a driving assembly for driving the lifting frame to ascend and descend is arranged in the frame body. The two carrying devices are adopted to lift the excavator lower frame at the same time, the dangerous situation that due to the fact that the excavator lower frame is large, if only one carrying device is adopted, the excavator lower frame is prone to toppling after being lifted is avoided, the two carrying devices are rapidly connected and fixed through the connecting assembly, and the excavator lower frame is convenient to carry. And when the two carrying devices carry the lower vehicle frame of the excavator after being lifted, the two carrying devices can keep moving synchronously, so that the stability of the lower vehicle frame of the excavator during carrying is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator lower frame carrying technical field more specifically, it is a kind of excavator lower frame carrying device with anti-toppling function. BACKGROUND

[0002] In modern engineering machinery field, excavator is as a kind of widely used in various buildings, mines, ports and other engineering operations Key equipment, its importance is self-evident, excavator lower frame is the important load-bearing component of entire equipment, in the production and manufacture, maintenance and equipment upgrading of excavator, the carrying operation of lower frame frequently occurs.

[0003] Traditional excavator lower frame carrying device, mostly only focus on realizing the basic function of carrying, i.e. lower frame is transferred from one position to another position, however, the carrying device in actual use exposes the following problems: due to the large volume and mass of excavator lower frame, once disturbed by external force in carrying process, such as uneven ground, carrying speed is too fast or improper turning operation etc., carrying device is prone to toppling. SUMMARY

[0004] In order to overcome the above-mentioned defects of prior art, the utility model provides a kind of excavator lower frame carrying device with anti-toppling function to solve the problems existing in the above background.

[0005] The utility model provides the following technical scheme: a kind of excavator lower frame carrying device with anti-toppling function, including frame body, the bottom four corners of the frame body are all fixedly connected with universal wheel, two vertical guide rails are fixedly connected between the inner wall of the both sides of the frame body, lifting frame is slidably connected between two vertical guide rails by sliding table, the inside of the frame body is equipped with the driving assembly of driving lifting frame to lift, one side of the lifting frame is fixedly connected with slide bar, two prongs are sleeved on one side of slide bar, one side of the prong is equipped with the side support assembly of preventing toppling, the top of the lifting frame is equipped with the connecting assembly of making two carrying devices quickly connect.

[0006] As the further scheme of the utility model, the connecting assembly includes two rotary frames rotatably connected on the top of the lifting frame, one side of the rotary frame is fixedly connected with sleeve one, the inside of sleeve one is threadedly connected with bidirectional threaded rod, the other end of bidirectional threaded rod is threadedly connected with sleeve two, one end of sleeve two is rotatably connected with rotary seat, one end of two rotary seats is respectively fixedly connected with inner thread connection cylinder and outer thread connection rod that can mutually cooperate.

[0007] As a further scheme of the utility model, the two sides of the lifting frame are fixedly connected with mounting plates, pin holes are formed in the interiors of the mounting plates, a pin rod matched with the pin holes is inserted at one end of the rotating frame, and a tension spring is arranged between the pin rod and the rotating frame.

[0008] As a further scheme of the utility model, torsion springs are sleeved at the circumferential outer sides of the two rotating frames, and the two ends of the torsion springs are fixed with the rotating frames and the lifting frame respectively.

[0009] As a further scheme of the utility model, the side supporting assembly comprises a rotating support plate rotatably connected at one side of the fork jaw through a bearing, and the top of the rotating support plate is at the same horizontal height as the top of the fork jaw.

[0010] As a further scheme of the utility model, a rubber gasket is arranged between the rotating support plate and the bearing.

[0011] As a further scheme of the utility model, the driving assembly comprises an internal thread sleeve fixedly connected at one side of the lifting frame, a lifting screw rod threadedly connected with the internal thread sleeve is rotatably connected in the interior of the frame body through a bearing, and a driving motor for driving the lifting screw rod to rotate along the axial direction is arranged at the top of the frame body.

[0012] The utility model discloses a technical effect and advantage:

[0013] 1. The utility model discloses a lifting frame is lifted to two handling devices simultaneously, avoids the danger situation of the lifting frame of excavator falling down after lifting due to the lifting frame of excavator being big, if only using one handling device.

[0014] 2. The utility model discloses a connecting assembly is used to make two handling devices quick connection and fixing, when two handling devices are handled after lifting the lifting frame of excavator, can keep moving synchronization, thereby effectively improve the stability when handling the lifting frame of excavator.

[0015] 3. The utility model discloses a side supporting assembly further improves the contact area of the fork jaw and the two sides of the lifting frame of excavator, effectively avoids the risk of the lifting frame of excavator falling down. DRAWINGS

[0016] Figure 1 It is the front side three-dimensional structure schematic view of the utility model.

[0017] Figure 2 It is the back side three-dimensional structure schematic view of the utility model.

[0018] Figure 3 It is the connection state schematic view of the utility model.

[0019] Figure 4 It is the utility modelFigure 3 A part enlarged structural schematic view of the utility model.

[0020] Figure 5 A part enlarged structural schematic view of the utility model Figure 3 B.

[0021] Figure 6 C. Figure 3 part enlarged structural schematic view of the utility model

[0022] Figure 7 Connecting assembly structural schematic view of the utility model.

[0023] The figure mark is: 1, fork jaw; 2, lifting frame; 3, sliding rod; 4, connecting assembly; 401, sleeve one; 402, two-way threaded rod; 403, sleeve two; 5, side support assembly; 501, rotating support plate; 502, rubber washer; 6, vertical guide rail; 7, lifting threaded rod; 8, driving motor; 9, universal wheel; 10, internal thread sleeve; 11, frame body; 12, internal thread connecting cylinder; 13, external thread connecting rod; 14, rotating seat; 15, rotating frame; 16, torsion spring; 17, mounting plate; 18, pin hole; 19, tension spring; 20, pin rod. DETAILED DESCRIPTION

[0024] The technical scheme in the utility model will be described clearly and completely in combination with the drawings in the utility model, and additionally, the form of each structure recorded in the following implementation manner is only exemplified, and the utility model is not limited to each structure recorded in the following implementation manner, and all other implementation manners obtained by the ordinary skilled in the art without making creative labor belong to the range of protection of the utility model.

[0025] Refer to Figures 1-7The utility model provides a kind of anti-toppling function's excavator lower frame carrying device, including frame body 11, the bottom four corners of frame body 11 are uniformly fixed with universal wheel 9 by bolt, the inside wall between the two sides of frame body 11 is uniformly fixed with vertical guide rail 6 by bolt, lifting frame 2 is slidably connected between two vertical guide rails 6 by sliding table, the inside of frame body 11 is equipped with the drive assembly of driving lifting frame 2 to lift, drive assembly includes the inner thread sleeve 10 welded in the side of lifting frame 2, the inside of frame body 11 is rotatably connected with the lifting screw rod 7 of the screw connection of inner thread sleeve 10 by bearing, the top of frame body 11 is equipped with the drive motor 8 of driving lifting screw rod 7 along the axis direction rotation, the side of lifting frame 2 is fixed with slide bar 3 by bolt, the side of slide bar 3 is sleeved with two prongs 1, the side of prong 1 is equipped with the side support assembly 5 of preventing toppling, the top of lifting frame 2 is equipped with the connecting assembly 4 of making two carrying devices quick connection, then prong 1 is pushed to suitable opening size from slide bar 3, then prong 1 is inserted into the below of excavator lower frame, then by starting drive motor 8, drive motor 8 rotation drives lifting screw rod 7 to rotate and drives lifting frame 2 to move upwards along vertical guide rail 6 by inner thread sleeve 10, so that prong 1 lifts excavator lower frame, since excavator lower frame is larger, if only one carrying device is used, it is easy to cause the dangerous situation of toppling after lifting, therefore two carrying devices are used to lift excavator lower frame simultaneously, and when two carrying devices carry excavator lower frame after lifting, two carrying devices cannot keep synchronization, and excavator lower frame is also easy to slide down, therefore connecting assembly 4 is used to make two carrying devices quick connection fixed, to effectively improve the stability when excavator lower frame is carried, simultaneously, the contact area of prong 1 and the two sides of excavator lower frame is further improved by side support assembly 5, to effectively avoid the risk of excavator lower frame sliding down and toppling.

[0026] The connecting assembly 4 in the utility model includes two rotating frames 15 which are rotatably connected at the top of the lifting frame 2, a sleeve one 401 is welded on one side of the rotating frame 15, a two-way threaded rod 402 is screw-connected in the inside of the sleeve one 401, a sleeve two 403 is screw-connected on the other end of the two-way threaded rod 402, a rotating seat 14 is rotatably connected on one end of the sleeve two 403, an inner thread connecting cylinder 12 and an outer thread connecting rod 13 which can mutually cooperate are respectively welded on one end of the two rotating seats 14, mounting plates 17 are fixed on the two sides of the lifting frame 2 through bolts, pin holes 18 are formed in the inside of the mounting plates 17, pin rods 20 which cooperate with the pin holes 18 are inserted on one end of the rotating frame 15, tension springs 19 are arranged between the pin rods 20 and the rotating frame 15, torsional springs 16 are sleeved on the circumferential outside of the two rotating frames 15 and are fixed on the rotating frame 15 and the lifting frame 2 at the two ends of the torsional springs 16, the rotating frame 15 can be reversely rotated and reset with the aid of the torsional springs 16, the pin rods 20 are pulled upwards, the tension springs 19 are elongated under stress and generate tension, then the sleeve one 401 and the rotating frame 15 are adjusted to a proper angle, the pin rods 20 are moved downwards and inserted into the pin holes 18 under the reset of the tension springs 19, so that the rotating position of the rotating frame 15 is locked and fixed, then the sleeve two 403 is held and the two-way threaded rod 402 is rotated, so that the total length of the sleeve one 401, the sleeve two 403 and the two-way threaded rod 402 is realized, so as to self-adaptively adjust the length of the lower frame of the excavator, then the inner thread connecting cylinder 12 and the outer thread connecting rod 13 of the two relative carrying devices are butt-jointed, then the thread connection and fixation between the inner thread connecting cylinder 12 and the outer thread connecting rod 13 are completed by rotating the rotating seat 14, while the rotating seat 14 is rotated, the sleeve two 403 needs to be synchronously rotated, so that the inner thread connecting cylinder 12 is rotated and moved to be threadedly cooperated with the outer thread connecting rod 13.

[0027] The side supporting assembly 5 in the utility model includes a rotating support plate 501 which is rotatably connected on one side of the fork 1 through a bearing, the top of the rotating support plate 501 is at the same horizontal height with the top of the fork 1, a rubber gasket 502 is arranged between the rotating support plate 501 and the bearing, the rotating support plate 501 is outward adjusted, so that the rotating support plate 501 is outward turned to a proper angle, so that the unfolding of the rotating support plate 501 is completed, and the effective support of the lower frame of the excavator on the two sides is realized through the rotating support plate 501.

[0028] The utility model in use is divided into the following steps:

[0029] S1: first, the two carrying devices are pushed to the two sides of the lower frame of the excavator, then the fork 1 is pushed to a proper opening size from the slide rod 3, and then the fork 1 is inserted below the lower frame of the excavator;

[0030] S2: by pulling up the pin rod 20, at this time the tension spring 19 is forced to elongate and generate tension, then by rotating the two sleeves 401 and the rotating frame 15 to the appropriate angle, at this time the rotating position of the rotating frame 15 is locked and fixed by the elastic return of the tension spring 19, so that the pin rod 20 moves downward and inserts into the pin hole 18, thereby realizing the length of the sleeve 401, the sleeve 403 and the two-way threaded rod 402, so as to adaptively adjust the length of the lower frame of the excavator, then the inner threaded connecting cylinder 12 and the outer threaded connecting rod 13 of the two opposite carrying devices are connected, then the threaded connection between the inner threaded connecting cylinder 12 and the outer threaded connecting rod 13 is completed by rotating the rotating seat 14, and at the same time, the sleeve 403 is rotated synchronously, so that the inner threaded connecting cylinder 12 is rotated and moved to be screwed with the outer threaded connecting rod 13;

[0031] S3: then the rotating support plate 501 can be pushed outward, so that the rotating support plate 501 is flipped outward to the appropriate angle, so as to complete the unfolding of the rotating support plate 501, and the effective support of the lower frame of the excavator on both sides is realized through the rotating support plate 501;

[0032] S4: then the driving motor 8 is started, the driving motor 8 is rotated to drive the lifting threaded rod 7 to rotate and drive the lifting frame 2 to move upward along the vertical guide rail 6 through the inner threaded sleeve 10, so that the fork jaw 1 lifts the lower frame of the excavator, so that the two carrying devices are used to lift the lower frame of the excavator at the same time, and the two carrying devices are kept synchronous when moving through the universal wheel 9.

[0033] Finally, it should be pointed out that in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to indicate the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0034] The utility model discloses the embodiment of the drawings, only relate to the structure related to the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other.

Claims

1. A lower frame carrying device of excavator with anti-toppling function, comprising a frame body (11), universal wheels (9) are fixedly connected at the bottom of four corners of the frame body (11), characterized in that: Both sides of the frame body (11) are fixedly connected with vertical guide rails (6), two vertical guide rails (6) are slidably connected with a lifting frame (2) through a sliding table, the inside of the frame body (11) is provided with a driving assembly for driving the lifting frame (2) to lift, one side of the lifting frame (2) is fixedly connected with a sliding rod (3), one side of the sliding rod (3) is sleeved with two prongs (1), one side of the prong (1) is provided with an anti-toppling side support assembly (5), the top of the lifting frame (2) is provided with a connecting assembly (4) for quickly connecting two carrying devices.

2. The lower frame carrying device of the excavator with the anti-toppling function according to claim 1, characterized in that: The connecting assembly (4) comprises two rotating frames (15) rotatably connected to the top of the lifting frame (2), one side of the rotating frame (15) is fixedly connected with a sleeve one (401), the inside of the sleeve one (401) is threadedly connected with a bidirectional threaded rod (402), the other end of the bidirectional threaded rod (402) is threadedly connected with a sleeve two (403), one end of the sleeve two (403) is rotatably connected with a rotating seat (14), one end of the two rotating seats (14) is fixedly connected with an inner threaded connection cylinder (12) and an outer threaded connection rod (13) that can cooperate with each other, respectively.

3. The lower frame carrying device of the excavator with the anti-toppling function according to claim 2, characterized in that: Both sides of the lifting frame (2) are fixedly connected with mounting plates (17), the inside of the mounting plate (17) is provided with a pin hole (18), one end of the rotating frame (15) is inserted with a pin rod (20) matched with the pin hole (18), and the pin rod (20) and the rotating frame (15) are provided with a tension spring (19) therebetween.

4. The lower frame carrying device of the excavator with the anti-toppling function according to claim 2, characterized in that: The circumferential outer side of the two rotating frames (15) is sleeved with a torsional spring (16), and the two ends of the torsional spring (16) are fixedly connected with the rotating frame (15) and the lifting frame (2), respectively.

5. The lower frame carrying device of the excavator with the anti-toppling function according to claim 1, characterized in that: The side support assembly (5) comprises a rotating support plate (501) rotatably connected to one side of the prong (1) through a bearing, and the top of the rotating support plate (501) is at the same horizontal height as the top of the prong (1).

6. The lower frame carrying device of the excavator with the anti-toppling function according to claim 5, characterized in that: The rotating support plate (501) and the bearing are provided with a rubber washer (502) therebetween.

7. The lower frame carrying device of the excavator with the anti-toppling function according to claim 1, characterized in that: The driving assembly comprises an inner threaded sleeve (10) fixedly connected to one side of the lifting frame (2), the inside of the frame body (11) is rotatably connected with a lifting threaded rod (7) threadedly connected with the inner threaded sleeve (10) through a bearing, and the top of the frame body (11) is provided with a driving motor (8) for driving the lifting threaded rod (7) to rotate along the axis direction.

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