CN110203819B

CN110203819B - Electric hoist

Info

Publication number: CN110203819B
Application number: CN201910428639.2A
Authority: CN
Inventors: 郭春华; 李涛
Original assignee: Nanjing Lvkou Lifting Machinery Co ltd
Current assignee: Nanjing Lvkou Lifting Machinery Co ltd
Priority date: 2019-05-22
Filing date: 2019-05-22
Publication date: 2020-12-25
Anticipated expiration: 2039-05-22
Also published as: CN110203819A

Abstract

The invention discloses an electric hoist, which relates to the technical field of hoisting equipment and comprises a shell, a truss and a sliding seat used for connecting the shell and the truss, wherein a connecting mechanism is arranged at the position, corresponding to the sliding seat, of the top of the shell, a cavity used for accommodating the connecting mechanism is formed in the sliding seat, the connecting mechanism comprises a plurality of clamping blocks connected to the top of the shell in a sliding mode, the clamping blocks are bent, clamping grooves used for accommodating the clamping blocks are formed in the cavity, the connecting mechanism comprises a driving piece used for pushing the clamping blocks to be synchronously clamped into or separated from the clamping grooves, a locking piece used for locking the driving piece and the clamping blocks to determine the relative positions of the driving piece and the clamping blocks, and an auxiliary connecting piece used for assisting in fixing the sliding seat and the shell. The electric hoist can be firmly connected with the sliding seat, the electric hoist and the sliding seat are convenient to connect, the connection structure is compact, deformation caused by bolt connection can be avoided, and later-stage maintenance and disassembly work is difficult.

Description

Electric hoist

Technical Field

The invention relates to the technical field of hoisting equipment, in particular to an electric hoist.

Background

The electric hoist is a special hoisting device, is installed on a crown block and a gantry crane, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used in places such as industrial and mining enterprises, storage, docks and the like.

The electric hoist has compact structure, and the motor axis is vertical to the electric hoist of the winding drum axis by adopting a worm gear transmission device. The disadvantages are: the length dimension is big, and the size is big in the aspect of the width, and the structure is bulky, and mechanical efficiency is low, and it is difficult etc.. The hydraulic system is dual control, and the overflow regulating valve and the magnetic contact pressure gauge can accurately control the pressure. The electric appliance control department adopts low voltage control, and the safety of the governing system is increased.

The classification and description of the wire rope electric block comprises the following components: motor, biography thought mechanism, reel and sprocket. There are roughly four types of motors and reels, which are different from each other in position. The pressed steel wire rope has large tension, attractive appearance and high speed, and the crimping of one set of steel wire rope can be completed in a few minutes, so that the labor intensity is greatly reduced, and the working efficiency is improved.

At present, a chinese patent with publication number CN109319678A discloses a novel electric hoist, which comprises a left support frame, a right support frame, a beam, a housing, a reel and a hanging mechanism, wherein the beam is provided with an operating mechanism, the left end and the right end of the housing are respectively provided with a left end cover and a right end cover, the reel is wound with a steel wire rope, and the bottom end of a connecting plate is provided with a hook;

the device also comprises an intermediate plate, a first rotating rod, a second rotating rod, a threaded rod, a sliding seat, a first bevel gear, a second bevel gear, a rotating rod, a fixed plate and a rotating disc, wherein a buffer mechanism is arranged between the sliding seat and the shell; the hanging mechanism also comprises a supporting plate, a first spring, a second spring, a pressing plate, a locking rod, a clamping rod and a baffle plate; the buffer mechanism further comprises a limiting rod, a third left spring, a third right spring and a buffer plate.

The novel electric hoist can lock the heavy object hung on the hook, so that the use safety is improved; when the operation stops, also can cushion the casing, improve the stability in use, but electric block is connected firmly inadequately with the sliding seat, and fixes the two through a plurality of bolts, and after long-time the use, the bolt takes place deformation easily, brings the difficulty for later stage maintenance and dismantlement work.

Disclosure of Invention

In order to solve the technical problems, the invention provides an electric hoist, which comprises a shell, a truss and a sliding seat used for connecting the shell and the truss, wherein a connecting mechanism is arranged at the position, corresponding to the sliding seat, of the top of the shell, a cavity used for accommodating the connecting mechanism is formed in the sliding seat, the connecting mechanism comprises a plurality of clamping blocks connected to the top of the shell in a sliding mode, the clamping blocks are bent, clamping grooves used for accommodating the clamping blocks are formed in the cavity, the connecting mechanism comprises a driving piece used for pushing the clamping blocks to be synchronously clamped into or separated from the clamping grooves, a locking piece used for locking the driving piece and the clamping blocks to determine the relative positions of the driving piece and the clamping blocks, and an auxiliary connecting piece used for assisting in fixing the sliding seat and the shell.

The technical effects are as follows: can be with electric block and sliding seat firm connection, and the two is connected comparatively conveniently, and connection structure closely can avoid the deformation that bolted connection produced, and the maintenance in later stage is less with the dismantlement work degree of difficulty, and is comparatively simple and convenient at installation and dismantlement in-process.

The technical scheme of the invention is further defined as follows:

further, the top of the shell is provided with a sliding groove, the cross section of the sliding groove is in a shape like a Chinese character 'tu', the bottom of the clamping block is integrally provided with a sliding block, the sliding block and the sliding groove are matched in shape, and the sliding block is embedded in the sliding groove and can slide in the sliding groove.

The electric hoist comprises two groups of sliding blocks and clamping blocks, wherein the sliding directions of the two groups of sliding blocks are opposite, a driving piece comprises a driving lead screw and a driving motor, the driving lead screw penetrates through the two sliding blocks respectively, and the driving lead screw is driven to rotate by the driving motor.

The electric hoist is characterized in that the driving screw rod is provided with a first thread section and a second thread section which are opposite in thread direction, and the two sliding blocks are respectively positioned in the first thread section and the second thread section and are in threaded connection with the driving screw rod.

The electric hoist comprises a shell, a driving disc, a clamping block, a sliding block, a push rod, a driven disc and a sliding groove, wherein the top of the shell is rotatably connected with the driving disc through a rotating shaft, the fixed disc which is coaxially arranged with the driving disc is fixed on the shell at the bottom of the driving disc, the clamping block and the sliding block are integrally connected through the push rod, the push rod penetrates through the driven disc, and the sliding groove is formed in the fixed.

A preceding electric block, be equipped with the promotion groove of arc shape on the drive plate, the width in promotion groove is the same with the diameter of push rod, promotes the groove and corresponds the setting with the spout, and chucking piece, promotion groove, draw-in groove and spout all encircle the axis of drive plate and are equipped with four groups.

Preceding an electric block, retaining member include with the initiative dish with the axle center fix in the epaxial locking worm wheel of commentaries on classics, the locking worm wheel can drive pivot and initiative dish rotation, the casing internal rotation is connected with the locking worm, the driving piece is including locating the driving motor in the casing, driving motor's output shaft and the integrative setting of locking worm for it is rotatory to drive the locking worm.

Preceding an electric block, correspond the draw-in groove in the sliding seat and be equipped with the holding tank that is used for holding the chucking piece, holding tank and draw-in groove intercommunication and the holding tank degree of depth is less than the draw-in groove degree of depth, be equipped with on the sliding seat and pierce through the sliding seat lateral wall and extend to in the holding tank to puncture into the fixing bolt in the chucking piece.

The electric hoist comprises a shell, a sliding seat, an auxiliary connecting piece, a connecting frame, a left frame body, a right frame body, a left frame body and a right frame body, wherein the connecting frame is fixed on the shell and the sliding seat through bolts and is symmetrical to the left frame body and the right frame body.

The invention has the beneficial effects that:

(1) when the shell of the electric hoist is connected with the sliding seat, the clamping block can be driven by the driving mechanism to slide, so that the clamping block slides into the clamping groove in the cavity, the clamping block and the clamping groove are mutually attached, the shell and the sliding seat can be mutually connected through the mutual clamping action of the clamping block and the clamping groove, the clamping block is provided with a plurality of clamping blocks, the clamping block and the sliding seat can be connected from all directions, and finally the position of the clamping block can be fixed through the locking piece, so that the clamping block is prevented from sliding out of the clamping groove;

(2) according to the invention, the electric hoist and the sliding seat can be firmly connected and are relatively convenient to connect, the connecting structure between the clamping block and the clamping groove is compact, deformation caused by bolt connection can be avoided, in the later-stage dismounting process, the clamping block and the clamping groove only need to be separated, the overall overhauling and dismounting work difficulty is small, and the mounting and dismounting process is relatively simple and convenient;

(3) according to the clamping device, the driving motor drives the driving screw rod to rotate, and the two thread sections on the driving screw rod respectively drive the two slide blocks to slide towards two directions, so that the clamping blocks can move oppositely or oppositely, and the purpose that the clamping blocks clamp the clamping groove or are separated from the clamping groove is achieved;

(4) according to the invention, the driving disc rotates, the pushing groove on the driving disc can drive the pushing rod to move, namely, the sliding block and the clamping block are driven to slide, at the moment, the sliding block is embedded in the sliding groove and slides along the direction of the sliding groove, so that the clamping block and the clamping groove can be matched or separated, and the locking worm wheel is matched with the locking worm, so that the rotating shaft can be driven to rotate, and the purpose of fastening the clamping block can be achieved through the self-locking property of the rotating shaft;

(5) the connecting frame can be used for performing auxiliary connection on the sliding seat and the shell, so that the shell is prevented from being directly dropped to cause damage when the shell is detached.

Drawings

FIG. 1 is a schematic structural view of example 1;

FIG. 2 is a sectional view showing a driving member in accordance with embodiment 1;

FIG. 3 is a structural view of a driving member in embodiment 1;

FIG. 4 is a structural view of a driving member in embodiment 2;

wherein: 1. a housing; 11. a chute; 2. a sliding seat; 21. a truss; 22. a cavity; 23. a card slot; 24. accommodating grooves; 25. fixing the bolt; 3. a connecting mechanism; 31. a clamping block; 32. a slider; 33. a push rod; 4. a drive member; 41. driving a lead screw; 411. a first thread segment; 412. a second thread segment; 42. a drive motor; 43. a driving disk; 44. fixing the disc; 45. a push groove; 46. a rotating shaft; 5. a locking member; 51. locking a worm gear; 52. locking the worm; 6. an auxiliary connection member; 61. a connecting frame; 62. a left frame body; 63. and a right frame body.

Detailed Description

Example 1

The electric hoist provided by the embodiment has a structure shown in fig. 1-3, and includes a housing 1, a truss 21, and a sliding seat 2 for connecting the housing 1 and the truss 21, wherein a connecting mechanism 3 is disposed at a position on the top of the housing 1 corresponding to the sliding seat 2, a cavity 22 for accommodating the connecting mechanism 3 is formed in the sliding seat 2, and the connecting mechanism 3 includes a plurality of clamping blocks 31 slidably connected to the top of the housing 1.

The clamping block 31 is in a bent shape, a clamping groove 23 for accommodating the clamping block 31 is formed in the cavity 22, the connecting mechanism 3 comprises a driving piece 4 for pushing the plurality of clamping blocks 31 to be synchronously clamped into or separated from the clamping groove 23, a locking piece 5 for locking the driving piece 4 and the clamping block 31 to determine the relative positions of the two, and an auxiliary connecting piece 6 for assisting in fixing the sliding seat 2 and the shell 1 is further arranged on the shell 1. The top of the shell 1 is provided with a sliding groove 11, the cross section of the sliding groove 11 is in a shape like a Chinese character 'tu', the bottom of the clamping block 31 is integrally provided with a sliding block 32, the sliding block 32 and the sliding groove 11 are mutually adaptive in shape, and the sliding block 32 is embedded in the sliding groove 11 and can slide therein.

The two sets of the sliding blocks 32 and the clamping blocks 31 are arranged on the same straight line, the sliding directions of the two sets of the sliding blocks 32 are opposite, the driving piece 4 comprises a driving screw 41 and a driving motor 42, the driving screw 41 penetrates through the two sliding blocks 32 respectively, and the driving screw is driven to rotate by the driving motor 42. The driving screw 41 is provided with a first thread section 411 and a second thread section 412 with opposite thread directions, and the two sliders 32 are respectively positioned in the first thread section 411 and the second thread section 412 and are in threaded connection with the driving screw 41.

The sliding seat 2 is internally provided with an accommodating groove 24 corresponding to the clamping groove 23 and used for accommodating the clamping block 31, the accommodating groove 24 is communicated with the clamping groove 23, the depth of the accommodating groove 24 is smaller than that of the clamping groove 23, and the sliding seat 2 is provided with a fixing bolt 25 penetrating through the side wall of the sliding seat 2 and extending into the accommodating groove 24 and penetrating into the clamping block 31. The auxiliary connecting member 6 includes a connecting frame 61 fixed to the housing 1 and the sliding base 2 by bolts, and the connecting frame 61 includes a left frame 62 and a right frame 63, and the left frame 62 and the right frame 63 are symmetrical to each other.

Example 2

An electric hoist, as shown in fig. 4, is different from embodiment 1 in that a driving disk 43 is rotatably connected to the top of a housing 1 through a rotating shaft 46, a fixed disk 44 coaxially arranged with the driving disk 43 is fixed on the housing 1 at the bottom of the driving disk 43, a clamping block 31 and a sliding block 32 are integrally connected through a push rod 33, the push rod 33 penetrates through the driven disk, and a sliding groove 11 is formed in the fixed disk 44.

The driving disk 43 is provided with a circular arc-shaped pushing groove 45, the width of the pushing groove 45 is the same as the diameter of the pushing rod 33, the pushing groove 45 is arranged corresponding to the sliding groove 11, and four groups of clamping blocks 31, the pushing groove 45, the clamping grooves 23 and the sliding grooves 11 are arranged around the central axis of the driving disk 43.

The locking member 5 comprises a locking worm wheel 51 coaxially fixed on the rotating shaft 46 with the driving disk 43, the locking worm wheel 51 can drive the rotating shaft 46 and the driving disk 43 to rotate, a locking worm 52 is rotatably connected in the shell 1, the driving member 4 comprises a driving motor 42 arranged in the shell 1, and an output shaft of the driving motor 42 and the locking worm 52 are integrally arranged and used for driving the locking worm 52 to rotate.

When electric block's casing 1 is connected with sliding seat 2, can drive chucking piece 31 through actuating mechanism and slide, make chucking piece 31 slide to the draw-in groove 23 in the cavity 22 in, chucking piece 31 and draw-in groove 23 laminate each other this moment, mutual chucking through chucking piece 31 and draw-in groove 23 just can be with casing 1 and sliding seat 2 interconnect, and chucking piece 31 is equipped with a plurality of, can follow each direction and realize the connection of the two, can be at last through retaining member 5 with the rigidity of chucking piece 31, avoid chucking piece 31 roll-off draw-in groove 23.

In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. The utility model provides an electric block, includes casing (1), truss (21) and is used for connecting sliding seat (2) of casing (1) and truss (21), its characterized in that: the position that casing (1) top corresponds sliding seat (2) is equipped with coupling mechanism (3), set up cavity (22) that are used for holding coupling mechanism (3) in sliding seat (2), coupling mechanism (3) slide including a plurality of and connect chucking piece (31) at casing (1) top, chucking piece (31) are the shape of bending, be equipped with draw-in groove (23) that are used for holding chucking piece (31) in cavity (22), coupling mechanism (3) are gone into or are separated from driving piece (4) of draw-in groove (23) including being used for promoting a plurality of chucking piece (31) synchronous card, and be used for locking driving piece (4) and chucking piece (31) with retaining member (5) of confirming the two relative position, still be equipped with auxiliary connection spare (6) that are used for supplementary fixed sliding seat (2) and casing (1) on casing (1).

2. An electric hoist according to claim 1, characterized in that: casing (1) top is equipped with spout (11), and the transversal "protruding" font of personally submitting of spout (11), and chucking piece (31) bottom an organic whole is equipped with slider (32), and slider (32) and spout (11) shape are adaptation each other, and slider (32) inlay and locate in spout (11) and can slide wherein.

3. An electric hoist according to claim 2, characterized in that: slider (32) are equipped with two sets ofly with chucking piece (31) on same straight line, and the direction of sliding of two sets of sliders (32) is opposite, and driving piece (4) are including drive lead screw (41) and driving motor (42), and drive lead screw (41) pierce through two slider (32) settings respectively to it is rotatory to be driven by driving motor (42).

4. An electric block according to claim 3, characterized in that: the driving screw rod (41) is provided with a first thread section (411) and a second thread section (412) which are opposite in thread direction, and the two sliding blocks (32) are respectively positioned in the first thread section (411) and the second thread section (412) and are in threaded connection with the driving screw rod (41).

5. An electric hoist according to claim 2, characterized in that: casing (1) top is connected with drive plate (43) through pivot (46) rotation, is fixed with fixed disk (44) rather than the axle center setting on casing (1) of drive plate (43) bottom, and catch block (31) and slider (32) pass through catch bar (33) body coupling, and catch bar (33) pierce through the driven plate, and fixed disk (44) are located in spout (11).

6. An electric block according to claim 5, characterized in that: the driving disc (43) is provided with a pushing groove (45) in an arc shape, the width of the pushing groove (45) is the same as the diameter of the pushing rod (33), the pushing groove (45) is arranged corresponding to the sliding groove (11), and four groups of clamping blocks (31), the pushing groove (45), the clamping groove (23) and the sliding groove (11) are arranged around the central axis of the driving disc (43).

7. An electric block according to claim 6, characterized in that: retaining member (5) include fix locking worm wheel (51) on pivot (46) with the axle center with drive plate (43), and locking worm wheel (51) can drive pivot (46) and drive plate (43) rotatory, and casing (1) internal rotation is connected with locking worm (52), and driving piece (4) are including locating driving motor (42) in casing (1), and the output shaft and the locking worm (52) an organic whole of driving motor (42) set up for it is rotatory to drive locking worm (52).

8. An electric block as claimed in claim 4 or 7, characterized in that: correspond draw-in groove (23) in sliding seat (2) and be equipped with holding tank (24) that are used for holding chucking piece (31), holding tank (24) and draw-in groove (23) intercommunication and holding tank (24) degree of depth are less than draw-in groove (23) degree of depth, are equipped with on sliding seat (2) and pierce through sliding seat (2) lateral wall and extend to in holding tank (24) to puncture into fixing bolt (25) in chucking piece (31).

9. An electric hoist according to claim 1, characterized in that: the auxiliary connecting piece (6) comprises a connecting frame (61) fixed on the shell (1) and the sliding seat (2) through bolts, the connecting frame (61) comprises a left frame body (62) and a right frame body (63), and the left frame body (62) and the right frame body (63) are symmetrical to each other.