CN208135782U - A kind of hoist engine - Google Patents

Abstract

The utility model relates to a kind of hoist engines, it include motor, with the spool body of electric-motor drive axis connection and the support being connect with the slide-bar of spool body, spool body includes guiding leading screw cylinder and the reducing cylinder that is wholely set with guiding leading screw cylinder one end, and setting can accommodate the helicla flute of wirerope on variable diameter drum outer wall；It is inwardly coaxially disposed axis hole in guiding leading screw cylinder and reducing cylinder axis, slide-bar is sleeved in axis hole；Reducing cylinder includes major diameter cylinder and the path cylinder that major diameter cylinder both ends are arranged in, and the section radius of major diameter cylinder is greater than the section radius of path cylinder, is wholely set cone cell transitional cylinder between major diameter cylinder both ends and path cylinder corresponding end；The utility model reducing cylinder realizes wirerope lifting article and becomes variable motion slowly by slow-to-fast-, impact when reduction starts and stops, stable drive, securely and reliably.

Description

A kind of hoist engine

Technical field

The utility model relates to a kind of hoist engines, belong to the mechanical device technical field of hoisting heavy.

Background technique

For hoist engine for promoting heavier article or personnel, reel is the cylindrical body that both ends are equipped with flange, steel mostly Cord is wrapped in periphery, mostly uses crane motor（Containing motor, deceleration and brake etc.）Drive reel rotation, steel wire End of restricting is fixed with reel end flanges root, realizes that wirerope wind or on reel by the forward and reverse of motor Opening makes article be promoted or be declined.Motor used in usual this kind of hoist engine is exchange constant speed motor, then is promoted or declined The speed of article is very big to motion state acceleration by stopping, then is promoted or decline begins with impact.It is normal when wirerope-winding It is that a roll suffers a circle, reel is axially not slidable, therefore wirerope output wirerope is to swing, i.e. reel winding first Layer is moved along an axial direction, and the second layer then moves round about；This lifting drum shortcoming is initial acceleration Degree has greatly impact, and wirerope is swung in transmission, can be had an adverse effect for certain conditions.When as close away from reel such as extract, meeting Generate reel axial force；Sometimes even so that wirerope is disorderly wound.The hoist engine of man lift is gear, but it is to pass through PLC（Electronic component）The speed change of realization, although speed change is steady, control speed needs higher cost.China Patent No. ZL2016210090102, it is entitled：Although a kind of its speed change of adjustable speed hoist engine is to realize speed change by the gear of different-diameter That is, mechanical adjustable speed-changing case, but wirerope vibration problems thereon do not solve.

Utility model content

The utility model technical problem of being solved is to provide one kind and makes to go up and down goods speed variable motion, and reel can be along axis To sliding, wirerope is not swung when moving, the hoist engine of stable drive.

The utility model adopts the following technical solution：

The utility model includes motor, connect with the spool body of electric-motor drive axis connection and with the slide-bar of spool body Support, the spool body includes guiding leading screw cylinder and the reducing cylinder that is wholely set with guiding leading screw cylinder one end, described Setting can accommodate the helicla flute of wirerope on variable diameter drum outer wall；Axis is inwardly coaxially disposed in guiding leading screw cylinder and reducing cylinder axis Hole, the slide-bar are sleeved in axis hole；The reducing cylinder includes major diameter cylinder and the path cylinder that major diameter cylinder both ends are arranged in, major diameter The section radius of cylinder is greater than the section radius of path cylinder, is wholely set cone cell transition between major diameter cylinder both ends and path cylinder corresponding end Cylinder.

The screw pitch of the utility model helicla flute is greater than the diameter of wirerope.

The utility model guiding leading screw cylinder is connect with the nut thread on support；Axis hole is square hole or the circle with keyway Hole.

It is connected between guiding leading screw cylinder described in the utility model and adjacent path cylinder by arcuation body transition body.

The utility model good effect is as follows：The utility model spool body presses guiding leading screw cylinder, path cylinder, cone cell transition Cylinder, major diameter cylinder, cone cell transitional cylinder and path cylinder are set gradually, and the path cylinder in steel wire winding, cone cell transitional cylinder, major diameter cylinder, Helicla flute is sequentially arranged on cone cell transitional cylinder and path drum outer wall, the screw pitch of helicla flute is slightly larger than the diameter of wirerope, makes spiral Slot matches with wirerope used, and helicla flute can prevent wirerope from generating axial sliding in winding, prevents wirerope from disorderly twining Around.On path cylinder at minimum diameter, starting and termination speed are slow at place always when beginning and end is wound for wirerope, this Sample can use the crane motor of smaller power, and impact very power is small when starting and ending works, while reducing use cost；By It is connect in guiding leading screw cylinder with the nut thread on support, nut is fixed, then guiding leading screw cylinder axially moves along slide-bar, that is, is become Diameter cylinder slides axially while rotation, and sliding speed rotates a screw pitch in nut for every revolution guiding leading screw cylinder, this Sample can be such that wirerope does not swing when moving；The utility model reducing cylinder realizes wirerope lifting article by slow-to-fast-speed change slowly Movement, impact when reduction starts and stops, stable drive, securely and reliably.

Detailed description of the invention

It is attached that FIG. 1 is a schematic structural view of the utility model；

Attached drawing 2 is the utility model spool body the schematic diagram of the section structure.

Specific embodiment

As shown in attached drawing 1-2, the utility model include motor 1, with motor 1 be driven axis connection spool body 3 and The support 2 connecting with the slide-bar 4 of spool body 3,1 transmission shaft of motor are connect with shaft coupling 7, and 7 other end of shaft coupling and slide-bar 4 connect It connects, the spool body 3 includes guiding leading screw cylinder 31 and the reducing cylinder being wholely set with 31 one end of guiding leading screw cylinder, described Setting can accommodate the helicla flute 36 of wirerope 6 on variable diameter drum outer wall；The screw pitch of helicla flute 36 is slightly larger than the diameter of wirerope 6, makes Helicla flute 36 matches with wirerope 6 used, and helicla flute 36 can prevent wirerope from generating axial sliding in winding, is being oriented to Lead screw cylinder 31 and reducing cylinder axis are inwardly coaxially disposed axis hole 32, and slide-bar 4 is sleeved in axis hole 32；The present embodiment slide-bar 4 is side Axis.

Reducing cylinder described in the utility model includes major diameter cylinder 33 and the path cylinder 34 that 33 both ends of major diameter cylinder are arranged in, major diameter The section radius of cylinder 33 is greater than the section radius of path cylinder 34, is wholely set between 34 corresponding end of 33 both ends of major diameter cylinder and path cylinder Cone cell transitional cylinder 35；It is connected between the guiding leading screw cylinder 31 and adjacent path cylinder 34 by arcuation body transition body 37；Axis hole 32 be square hole or the circular hole with keyway, and the present embodiment axis hole 32 is square hole, 5 spiral shell of nut on guiding leading screw cylinder 31 and support 2 Line connection, reducing cylinder slide axially while rotation, and sliding speed is that every revolution guiding leading screw cylinder 31 is rotated in nut 5 One screw pitch, makes wirerope not generate swing.

When work, the height that wirerope-winding length and article are promoted first is determined, starting motor 1, which rotates forward, promotes article Just start when, wirerope 6 is wrapped in the helicla flute 36 of the path cylinder 34 of outer end, promoted item motion speed it is slow, by with its Connected cone cell transitional cylinder 35 makes article promote speed quickening into major diameter cylinder 33, and wirerope 6 reaches maximum lift speed, then Wirerope 6 promotes speed decline when reaching the cone cell transitional cylinder 35 of inside, when wirerope 6 reaches the path cylinder 34 of inside, promoted Speed is most slow, reaches the scheduled promotion speed of institute at this time；When declining article, invert motor 1, wirerope 6 is along spool body 3 Helicla flute 36 reverse and realize speed change decline.

The utility model spool body 3 is in promotion or decline when article, starting and to terminate speed slow, in this way can using compared with Low power crane motor 1, impact very power is small when work, while reducing use cost；Due to guiding leading screw cylinder 31 and support 2 On nut 5 be threadedly coupled, reducing cylinder rotate while slide axially, sliding speed be every revolution guiding leading screw cylinder 31 A screw pitch is rotated in nut 5, wirerope 6 can in this way not swung, the utility model reducing cylinder realizes wirerope 6 when moving The variable motion of lifting goods speed, stable drive, securely and reliably.

Claims (4)

1. a kind of hoist engine comprising motor（1）With motor（1）It is driven the spool body of axis connection（3）And and spool body （3）Slide-bar（4）The support of connection（2）, it is characterised in that the spool body（3）Including guiding leading screw cylinder（31）And with guiding Lead screw cylinder（31）The reducing cylinder that one end is wholely set, setting can accommodate wirerope on the variable diameter drum outer wall（6）Spiral Slot（36）；In guiding leading screw cylinder（31）And reducing cylinder axis is inwardly coaxially disposed axis hole（32）, the slide-bar（4）It is sleeved on axis hole （32）It is interior；

The reducing cylinder includes major diameter cylinder（33）And it is arranged in major diameter cylinder（33）The path cylinder at both ends（34）, major diameter cylinder（33）'s Section radius is greater than path cylinder（34）Section radius, major diameter cylinder（33）Both ends and path cylinder（34）It is wholely set between corresponding end Cone cell transitional cylinder（35）.

2. a kind of hoist engine according to claim 1, it is characterised in that helicla flute（36）Screw pitch be greater than wirerope（6）'s Diameter.

3. a kind of hoist engine according to claim 1 or 2, it is characterised in that guiding leading screw cylinder（31）With support（2）On Nut（5）It is threadedly coupled；

Axis hole（32）For square hole or with the circular hole of keyway.

4. a kind of hoist engine according to claim 1, it is characterised in that the guiding leading screw cylinder（31）With adjacent path Cylinder（34）Between pass through arcuation body transition body（37）Connection.