CN206899619U - A kind of Simple pull bascule - Google Patents

Abstract

A kind of Simple pull bascule, a kind of Simple pull bascule, including column (1) are the utility model is related to, swing arm (2), hangs thing ring (3), stage clip eyelid retractor (4), it is characterised in that：Column described in device (1) is be hinged with swing arm (2), A connection seats (5) are fixed with column, B connection seats (6) are fixed with swing arm, stage clip eyelid retractor (4) both ends are hingedly connected to A connection seats and B connection seats, the stage clip eyelid retractor is made up of cylinder sleeve (7), guide pin bushing (8), compression spring (9), adjusting nut (10), anti-avulsion nut (11), screw mandrel (12), and cylinder sleeve side is hinged with A connection seats, opposite side barrel-shaped cavity content compression spring with the end；Guide pin bushing activity is placed in cylinder sleeve, the inner chamber provided with spring abutment and the encompassing compression spring of cylinder sleeve；Vertical movements are through screw mandrel one end of guide pin bushing spring abutment by anti-avulsion nut anti-falling, the other end of screw mandrel is articulated with B connection seats, adjusting nut is located at guide pin bushing and held on the screw mandrel of compression spring opposite side, and the angle of the stage clip eyelid retractor axis and swing arm formation should be between 23 °~28 °, preferably 25 °.

Description

A kind of Simple pull bascule

Technical field：It the utility model is related to the aid and suspension operational instrument balance of a kind of production operation equipment Device, be particularly suitable for use in a kind of Simple pull bascule that suspension polyurethane production equipment pouring head uses.

Background technology：Continuation, repetitive operation are engaged in the occasion using hand-operated tools and hanging device, production line Librarian use be used to hang, concentrate, carry and remove the place of tool work, in order to mitigate the labor intensity of operating personnel, Bascule is needed to use, the object or instrument weight balancing of suspension are fallen, is easy to lift or carries, it is more typical to have similar build The counterweight method that building site tower crane uses is built, benefit is that balance is good but complicated, and column is subjected to more than two times of load Lotus, manufacturing cost are high high with maintenance cost.There is a kind of Spring balancer in the market in recent years, and has obtained relatively rapid popularization Using.Such as：Applied in polyurethane production equipment, being to support swing arm 2 to arrive above production operation station using column 1, then Hang this Spring balancer 13 and be fixed on stretching for Spring balancer to the extension thing ring 3 of the end of swing arm 2, then by pouring head 15 (see Fig. 1) on contracting steel wire rope 14, the pouring head of discontinuous operation is moved up and down by operating personnel, counterpoise and mobile pouring head When weight is consistent, the optional position for moving up and down pouring head stroke reaches balance, that is, moves pouring head and be in null-gravity state, greatly The big labor intensity for reducing operating personnel, improves labor productivity.It is but relatively severe using Spring balancer condition Carve：First, a kind of Spring balancer of specifications and models can counterpoise and adjustable range it is very small, during mobile pouring head use Increase and decrease component sometimes, this brings difficulty to being chosen from Spring balancer specification；Two, load and unload mobile cast from Spring balancer It is cumbersome, to pull out, inject latch, otherwise there is the quick possibility for withdrawing and hurting sb.'s feelings or damage instrument, so existing necessarily Potential safety hazard；3rd, when operation instrument moves laterally gradient more than 30 degree, upright position need to be moved closer in loosening tool, Otherwise steel cable mistake groove can be caused stuck, use condition requires high；4th, Spring balancer is more simple in construction than counterweight mode, but Price is higher, and maintaining is inconvenient, and service life is short, and economy is bad.

The content of the invention：The purpose of this utility model is the defects of overcoming prior art, there is provided one kind is adapted to mobile pouring head Operating mode, adjustable range is big, and one kind that use condition is less demanding, simple in construction, security is good, price is low, easy to maintenance is simple Tension balancing device.

The utility model is by cancelling Spring balancer component on the basis of existing apparatus, increasing a kind of stage clip support Device 4, i.e.,：Make device column 1 be hinged with swing arm 2, A connection seats 5 are fixed with column, B connection seats 6, stage clip are fixed with swing arm The both ends of eyelid retractor 4 are hingedly connected to A connection seats and B connection seats, the stage clip eyelid retractor 4 by cylinder sleeve 7, guide pin bushing 8, compression spring 9, Adjusting nut 10, anti-avulsion nut 11, screw mandrel 12 are formed, and cylinder sleeve side is hinged with A connection seats, opposite side barrel-shaped cavity with the end Content compression spring 9；The activity of guide pin bushing 8 is placed in cylinder sleeve, the inner chamber provided with spring abutment and the encompassing compression spring 9 of cylinder sleeve；Vertical movements B connection seats, adjusting nut 10 are articulated with by the anticreep of anti-avulsion nut 11, the other end of screw mandrel through one end of screw mandrel 12 of guide pin bushing spring abutment On the screw mandrel for holding the opposite side of compression spring 9 positioned at guide pin bushing 8, when using wire rope hanging pouring head on the extension thing ring 3 of the end of swing arm 2 When, it is assumed that pouring head weight is F, is known according to Hooke's law, and compression spring 9 will compress x, and F=k × x k are spring stiffness system Number.The bar of regulation screw mandrel adjusting nut 10 can increase and reduce screw mandrel length, change the swing arm elevation angle, be in pouring head and most preferably treat work Make position, as long as selecting the compression spring of appropriate device of spring stiffness coefficient, operating personnel then easily pull downward on pouring head and poured very much Operation is noted, cast is completed, automatically resets.When pouring head weight increase, compression spring compresses δ length more, and pouring head leaves most Best placement is sagging, as long as at this moment increasing screw mandrel length δ offsets the length that compression spring is compressed more, conversely, nose heave when pouring into a mould When amount is reduced, compression spring resilience η length, pouring head leaves optimum position and moved up, as long as at this moment reducing screw mandrel length η offsets bullet The length of spring resilience, adjustable range is big, easy to adjust, simple in construction, inexpensive；Because compression spring length is that have Limit, pouring head is loaded and unloaded, swing arm will not drive steel wire rope to move up and hurt sb.'s feelings or damage instrument, and use condition is without particular/special requirement, maintenance side Just, experiment shows, the angle of the axis of this simple flat weighing apparatus stage clip eyelid retractor 4 and the formation of swing arm 2 should be best between 23 °~28 ° For 25 ° when operating personnel operation it is most laborsaving.

Brief description of the drawings：

Accompanying drawing 1 is existing balance device structure schematic diagram；

Accompanying drawing 2 is the utility model embodiment structural representation；

Below in conjunction with accompanying drawing, the utility model is described in further detail, and provides embodiment.

Embodiment：A kind of Simple pull bascule embodiment of the present utility model is as shown in Fig. 2 device includes Column 1, swing arm 2, thing ring 3 is hung, stage clip eyelid retractor 4, column 1 is be hinged with swing arm 2, is fixed with A connection seats 5 on column, in swing arm B connection seats 6 are fixed with, the both ends of stage clip eyelid retractor 4 are hingedly connected to A connection seats and B connection seats, and the stage clip eyelid retractor 4 is by cylinder Set 7, guide pin bushing 8, compression spring 9, adjusting nut 10, anti-avulsion nut 11, screw mandrel 12 form, and cylinder sleeve side is be hinged, another with A connection seats Side barrel-shaped cavity content compression spring 9 with the end；The activity of guide pin bushing 8 is placed in cylinder sleeve, and the inner chamber provided with spring abutment is total to cylinder sleeve Hold compression spring 9；One end of screw mandrel 12 of Vertical movements through guide pin bushing spring abutment is hinged by the anticreep of anti-avulsion nut 11, the other end of screw mandrel In B connection seats, adjusting nut 10 is located at guide pin bushing 8 and held on the screw mandrel of the opposite side of compression spring 9, the axis of stage clip eyelid retractor 4 The angle formed with swing arm 2 is between 23 °~28 °, preferably 25 °.

Claims (3)

1. a kind of Simple pull bascule, including column (1), swing arm (2), hang thing ring (3), stage clip eyelid retractor (4), its feature It is：Column described in device (1) is be hinged with swing arm (2), and A connection seats (5) are fixed with column, B connection seats are fixed with swing arm (6), stage clip eyelid retractor (4) both ends are hingedly connected to A connection seats and B connection seats.

A kind of 2. Simple pull bascule according to claim 1, it is characterised in that the stage clip eyelid retractor (4) by Cylinder sleeve (7), guide pin bushing (8), compression spring (9), adjusting nut (10), anti-avulsion nut (11), screw mandrel (12) composition, cylinder sleeve side with A connection seats are be hinged, opposite side barrel-shaped cavity content compression spring (9) with the end；Guide pin bushing (8) activity is placed in cylinder sleeve, is provided with The inner chamber of spring abutment and the encompassing compression spring of cylinder sleeve (9)；Vertical movements are through screw mandrel (12) one end of guide pin bushing spring abutment by anti-avulsion nut (11) anticreep, the other end of screw mandrel are articulated with B connection seats, and adjusting nut (10) is located at guide pin bushing (8) and holds compression spring (9) relative one On the screw mandrel of side.

A kind of 3. Simple pull bascule according to claim 1, it is characterised in that stage clip eyelid retractor (4) axle The angle that line and swing arm (2) are formed is between 23 °~28 °.