CN2457114Y - Hand operate heavy load hydraulic conveyer - Google Patents

Abstract

The utility model belongs to the technical field of hydraulic machinery, which relates to the improvement of a manual weight hydraulic moving device. The utility model comprises a manual pump 1, a hydraulic cylinder 11, a casing 9, a gear rack, a gear shaft, a crank 10, a roller 4 and a suspension bracket 6, wherein, the hydraulic cylinder 11 is connected with the manual pump; the casing 9 is connected with the hydraulic cylinder 11; the gear rack is connected with a piston of the hydraulic cylinder in the casing 9; the gear shaft is engaged with the gear rack; the crank 10 and the roller 4 are connected with the gear shaft; the suspension bracket 6 is connected with the casing 9. The utility model is characterized in that after a weight is suspended, the bearing center of the suspension bracket 6 and the rotating center of the gear shaft have an excentricity e1 in a horizontal direction; when the crank 10 downwards rotates to an extreme position, the center of the roller and the center of the gear shaft have an excentricity e2; two rows of centripetal spheric roller bearings are arranged between roller shaft 5 and the roller 4. The utility model enables the hydraulic moving device to flexibly turn without any increasing component under the premise that the carrying capacity is kept unchanged.

Description

Manual weight fluid power mobile device

The utility model belongs to the hydraulic machinery field, relates to the improvement to manual weight fluid power mobile device.

Manually weight fluid power mobile device is a kind of power operated small-sized hydraulic mechanism that need not, and can only depend on manpower to remove among a small circle and mobile heavy weight object by it.For example move skid formula helicopter, move guided missile, move weights such as various casees, jar, lathe at the goods yard moving containers and in other occasion at the launch site on the airport.A kind of structure principle chart of this type of device of being produced by French a company as shown in Figure 1.This device comprises a force pump 1, can carry out pressurized operation by handle 2.A hydraulic actuating cylinder 11 is connected with force pump 1, not only mechanically tightens together, and carries out the connection of hydraulic circuit by pipeline.In the hydraulic actuating cylinder 11 piston is arranged, motion under pressure oil drives.Also have a housing 9 with hydraulic actuating cylinder 11 bonded assemblys, there is a tooth bar its inside, and the piston in this tooth bar one end and the hydraulic actuating cylinder 11 is connected, is subjected to the driving of piston, and tooth bar can be done parallel mobile.Have one by wheel and rack ingear tooth axle, its axis is vertical with the length direction of tooth bar, between the two ends of this tooth axle and the housing 9 bearing is installed.The inside of housing 9 constitutes an osed top fuel tank, and the inside is marked with hydraulic oil.It is identical that the two ends of tooth axle respectively connect 10, two crank 10 directions of a crank, keeping parallelism.In the end of crank 10 roller shaft 5 is arranged, roller 4 is connected with roller shaft 5 by bearing.After hydraulic actuating cylinder 11 off-loads, tooth bar moves to high order end under piston drives, and the tooth axle drives crank 10 and also rotates counterclockwise, and is parallel with tooth bar up to crank 10.At this moment, whole fluid power mobile device is in extreme lower position.When shaking handle 2 and suppress in hydraulic actuating cylinder 11, piston promotes tooth bar and moves right, and the tooth axle drives crank 10 and clockwise rotates, and vertical with tooth bar up to crank 10, at this moment, whole fluid power mobile device is in the extreme higher position.When the extreme higher position, in the locking hole that the locking pin 3 on housing 9 tops inserts on the tooth bar, make tooth shaft locking, can't rotate, make whole fluid power mobile device remain on the extreme higher position always.A hanger 6 is arranged below housing 9, and it is connected with housing 9 by hanger axle 8, and the bearing pin 7 on the weight hangs on the hook of hanger 6.When the fluid power mobile device is in the extreme higher position, the carrying central lines of the axis of crank 10 and hanger 6.The shortcoming of this fluid power mobile device is that two rollers can only be kept straight on, and can not turn round.When weight is very heavy, need to use the use that forms a line of a plurality of fluid power mobile devices, at this moment also can only straight-line motion, more can not turn.This just makes troubles to use, and when moving such as the very big object of guided missile, oil tank, freight container equal length, owing to can't turn, this fluid power mobile device can't use.

The purpose of this utility model is, a kind of fluid power mobile device that can turn to flexibly is provided, and uses it can move all kinds of weights in short range.

The technical solution of the utility model is: a kind of manual weight fluid power mobile device, comprise a force pump 1, one and force pump bonded assembly hydraulic actuating cylinder 11, one and hydraulic actuating cylinder 11 bonded assembly housings 9, piston in the hydraulic actuating cylinder 11 and housing 9 interior tooth bars are connected, gear mesh on tooth bar and the tooth axle, respectively there is a crank 10 at the two ends of tooth axle, there is the roller shaft 5 that connects roller 4 end of crank 10, the below of housing 9 has one by hanger axle 8 and housing 9 bonded assembly hangers 6, and there is locking pin 3 top of housing 9, has on the tooth bar and locking pin 3 cooresponding locking holes, it is characterized in that

(1) carrying of hanger 6 is centered close to the side towards hydraulic actuating cylinder 11, and this carrying center is eccentric distance e 1 of centre of gration of offset teeth axle in the horizontal direction, and the span of e1 is 10～30mm:

(2) following two condition: a. should be satisfied when crank 10 is positioned at the end position that is rotated down in the position of determining locking hole on the tooth bar, locking pin 3 enters the locking hole on the tooth bar, b. after locking pin 3 enters locking hole on the tooth bar, the centre of gration of the center of roller shaft 5 and tooth axle distance in the horizontal direction is an eccentric distance e 2, and the span of e2 is 20～40mm;

(3) between roller shaft 5 and roller 4, double row self aligning spherical roller bearing is installed.

The utility model has the advantages that:, the fluid power mobile device can be turned to flexibly keeping not increasing parts under the load-carrying capacity unmodified prerequisite.Can use the get up weight of mobile super large overlength of a plurality of fluid power mobile device permutation and combination, enlarge field of application.

Description of drawings.

Fig. 1 is existing a kind of manual weight fluid power mobile device structural representation.

Fig. 2 is the manual weight fluid power of a utility model mobile device structural representation.

Below in conjunction with accompanying drawing the utility model is elaborated.The use of structure shown in Figure 1 can not turn to, and its reason is, and first, roller lacks steering torque; The second, roller bearing can not be carried out beat in the horizontal direction.Improvement of the present utility model is primarily aimed at above 2 and carries out.At first, when the fluid power mobile device is in the extreme higher position, when just carrying the position of weight, need make the carrying center of hanger 6 and the center of turn of roller 4 produce certain off-centre.This off-centre is two eccentric distance es 1 and e2 sum.The formation of eccentric distance e 1 is to realize by the position that changes hanger axle 8, and hanger axle 8 can be formed off-centre to the distance that the direction near hydraulic actuating cylinder 11 moves e1.At this moment carrying is centered close to the mid point of two hooks, with the center distance in the horizontal direction of tooth axle be e1.The span of e1 is 10～30mm.The e1 value is subjected to the restriction of housing 9 scantling of structure and intensity, and e1 greatly then housing 9 is big, and intensity reduces; The little then torque of e1 is little, generally can select e1=20mm.

The off-centre that e1 only arranged not enough, eccentric distance e 2 is that the end positions of control crank 10 obtains, and when the fluid power mobile device is in the extreme higher position, if make crank 10 keep an angle with vertical line, just can obtain eccentric distance e 2.The size of controlling this angle just can obtain the off-centre of needs.Control method is that the position of the locking hole on the tooth bar is corresponding with desired crank end positions.When crank forwarded predetermined end positions to, locking pin 3 inserted locking hole with tooth axle that is crank 10 lockings.Like this, just produced eccentricity e1+e2 between the centre of gration of the carrying center of hanger 6 and roller 4.When traction steer, will produce a component perpendicular to working direction, owing to there is eccentricity e1+e2, just produces in the horizontal direction and make the moment of roller steering, thereby make roller steering.The span of e2 is 20～40mm, and for example actual in one embodiment value is 30mm.Provide the design implementation example of 3 eccentric throws below.

	Example 1	Example 2	Example 3
				e1 mm	20	10	30
e2 mm	30	40	20

The eccentric throw that has light still can not realize turning to, also to change the bearing of roller 4 into double row self aligning spherical roller bearing, this bearing cone outer ring relatively has the swing of certain angle, therefore, under the effect of steering torque, roller 4 can rotate along the direction of tractive force, thereby has realized turning to of fluid power mobile device.Test shows, use a plurality of combinations of the present utility model can jack-up, any weight such as mobile helicopter, guided missile, casing, tank body, and can turn to flexibly by on the go.

Claims (1)

1, a kind of manual weight fluid power mobile device, comprise a force pump [1], one and force pump bonded assembly hydraulic actuating cylinder [11], one and hydraulic actuating cylinder [11] bonded assembly housing [9], the interior tooth bar of piston in the hydraulic actuating cylinder [11] and housing [9] is connected, gear mesh on tooth bar and the tooth axle, respectively there is a crank [10] at the two ends of tooth axle, there is the roller shaft [5] of connection roller [4] end of crank [10], the below of housing [9] has one, and there is locking pin [3] top of housing [9] by hanger axle [8] and housing [9] bonded assembly hanger [6], has on the tooth bar and the cooresponding locking hole of locking pin [3], it is characterized in that

(1) carrying of hanger [6] is centered close to the side towards hydraulic actuating cylinder [11], and this carrying center is eccentric distance e 1 of centre of gration of offset teeth axle in the horizontal direction, and the span of e1 is 10～30mm,

(2) following two conditions should be satisfied in the position of determining locking hole on the tooth bar:

A. when crank [10] was positioned at the end position that is rotated down, locking pin [3] entered the locking hole on the tooth bar,

B. after locking pin [3] entered locking hole on the tooth bar, the centre of gration distance in the horizontal direction of the center of roller shaft [5] and tooth axle was an eccentric distance e 2, and the span of e2 is 20～40mm,

(3) between roller shaft [5] and roller [4], double row self aligning spherical roller bearing is installed.