CN201487151U

CN201487151U - Counter-rotating lifter

Info

Publication number: CN201487151U
Application number: CN2009201930159U
Authority: CN
Inventors: 张茂兴
Original assignee: RUIAN MAOXING PACKING MACHINERY CO Ltd
Current assignee: RUIAN MAOXING PACKING MACHINERY CO Ltd
Priority date: 2009-08-25
Filing date: 2009-08-25
Publication date: 2010-05-26
Anticipated expiration: 2019-08-25

Abstract

The utility model relates to a counter-rotating lifter, which comprises a box body, an input flange, and a double-side gear rack. The input flange is fixed on the box body and is provided with an input shaft; an input gear is arranged at the inner end of the input shaft; a gear shaft I, a gear shaft II and a gear shaft III are rotatably arranged on the box body; a gear I meshed with the input gear on the input shaft is fixedly connected to the gear shaft I, a gear II is fixedly connected to the gear shaft II, and a gear III is fixedly connected to the gear shaft III; the gear shaft I and the gear shaft III are arranged on two sides of the gear shaft II, and two ends of the gear II on the gear shaft II are respectively meshed and matched with the gear shaft I and the gear III in a linkage manner; the double-side gear rack comprises a gear rack I and a gear rack II oppositely butted and is arranged between the gear shaft II and the gear shaft III; and the gear rack I and the gear rack II of the double-side gear rack are meshed and matched and meshed with the gear shaft II and the gear shaft III on two sides in a transmission manner. The utility model has the advantages of stable property, reliable operation, low noise, and the like.

Description

Incongruous transmission lifter

Technical field

The utility model relates to a kind of mechanical transmission, specifically is meant a kind of incongruous transmission lifter.

Background technique

Be provided with hydraulic pressure in traditional hydraulic-pneumatic molding machine or the pressure liftable device is finished operations such as mechanical locked mode, hollow molding, but existing hydraulic pressure or pressure liftable device complex structure, cost an arm and a leg, and, after the long-time use of hydraulic pressure or pressure liftable device, leakage or gas leak phenomenon often occur, cause the lifting transmission speed slack-off, need periodic maintenance fluid infusion tonifying Qi, the maintenance cost height.In addition, on the equipment that needs high precision numerical control transmission lifting, the hydraulic-pneumatic lift device can't reach enough control accuracies, and operability is poor.

In addition, existing also have a kind of lift device that carries out the lifting transmission by single-side rack and gear shaft, and it moves poor location, and tooth bar is shifted, thereby cause fault to take place, and operation stability is poor, and the life-span is short.

The model utility content

The purpose of this utility model is in order to overcome the shortcoming and defect that prior art exists, and a kind of stable performance, reliable, incongruous transmission lifter that the numerical control precision is high are provided.

For achieving the above object, the technical solution of the utility model is, include casing, it is characterized in that also including input flange, two-sided tooth bar, described input flange is installed on the casing and this input flange is provided with input shaft, this input shaft the inner is provided with the input gear, described casing is provided with gear shaft I, gear shaft II, gear shaft III, gear I with the input gear engagement of input shaft is fixedly connected on the described gear shaft I, gear II has been fixedly connected on the described gear shaft II, gear III has been fixedly connected on the described gear shaft III, described gear II is consistent with gear III velocity ratio, described gear shaft II and the same velocity ratio of gear shaft III, described gear shaft I and gear shaft III are arranged at gear shaft II both sides, and the gear II two ends on the gear shaft II are linked with gear shaft I and gear III engagement respectively, described two-sided tooth bar is made up of relative butt joint all-in-one-piece tooth bar I and tooth bar II, and this two-sided tooth bar is arranged between gear shaft II and the gear shaft III, and the tooth bar I of this two-sided tooth bar and tooth bar II cooperate with the gear shaft II and the gear shaft III engagement driving of its both sides respectively.By this setting, power is delivered to gear I through input shaft, and then be delivered to gear II, gear II is again with transmission of power and gear II on the gear III with velocity ratio, therefore the identical transmission direction of transmission speed of gear II and gear III is opposite, thereby make that the identical transmission direction of transmission speed of gear shaft II and gear shaft III is opposite, power passes on the two-sided tooth bar of being made up of butt joint all-in-one-piece tooth bar I and tooth bar II through gear shaft II and gear shaft III then, because the equal sprocket drive spindle II in both sides of two-sided tooth bar and gear shaft III carry out spacing to it and it are carried out power transmission, so its good stability, situations such as vibration can not appear, advantage such as noise is little.

Further being provided with is that described tooth bar I is fixedly connected into two-sided tooth bar with tooth bar II by straight pin.It is good that tooth bar I that this setting makes and tooth bar II connect all-in-one-piece stability.

Further being provided with is that described gear I, gear II, gear III are fixedly installed in gear shaft I, gear shaft II, gear shaft III respectively by the keyway connecting mode.Originally setting up an organization, it is simple to be provided with, and good stability is installed.

Further being provided with is corresponding to being provided with shaft-cup on gear shaft I, gear shaft II, the gear shaft III on the described casing.This setting is provided with shaft-cup and not only is convenient to gear shaft I, gear shaft II, gear shaft III installation, and it can be enclosed in the casing.

Of the present utility model have stable performance, reliable a, advantage such as noise is little.

Below in conjunction with specification drawings and specific embodiments the utility model is done further introduction.

Description of drawings

Fig. 1 the utility model embodiment structural representation;

Fig. 2 the utility model embodiment structure sectional view.

Embodiment

Embodiment of the present utility model shown in Fig. 1-2, include casing 1, input flange 2, two-sided tooth bar 3, described input flange 2 be installed on the casing 1 and this input flange 2 be provided with input shaft 21, these input shaft 21 the inners are provided with input gear 22, described casing 1 is provided with gear shaft I 11, gear shaft II 12, gear shaft III 13, be fixedly connected on the described gear shaft I 11 and be connected to input gear 22 meshed gears I 111 with input shaft 21, gear II 121 has been fixedly connected on the described gear shaft II 12, gear III 131 has been fixedly connected on the described gear shaft III13, described gear II 12 is consistent with gear III 13 velocity ratios, described gear shaft II and the same velocity ratio of gear shaft III, guarantee that so power passes to gear III 13 through gear II 12, make the identical direction of rotation of transmission speed of gear shaft II 12 and gear shaft III 13, the described gear II of present embodiment is identical gear with gear III, and the described gear I 111 of present embodiment, gear II 121, gear III 131 is fixedly installed in gear shaft I 11 respectively by the keyway connecting mode, gear shaft II 12, gear shaft III 13, so be provided with, mechanism is provided with simply, and good stability is installed.

The described gear shaft I 11 and the gear shaft III 13 of present embodiment are arranged at gear shaft II12 both sides, and gear II 121 two ends on the gear shaft II 12 are linked with gear shaft I 11 and gear III 131 engagements respectively, described two-sided tooth bar 3 is made up of mutual butt joint all-in-one-piece tooth bar I 31 and tooth bar II 32, this tooth bar of present embodiment I 31 and tooth bar II 32 are fixedly connected by straight pin 33, and this two-sided tooth bar 3 is arranged between gear shaft II 12 and the gear shaft III 13, and the tooth bar I 31 of this two-sided tooth bar 3 and tooth bar II 32 cooperate with the gear shaft II 12 and gear shaft III 13 engagement driving of its both sides respectively.The utility model power is delivered to gear I 111 through input shaft 21, and then be delivered to gear II 121, gear II 121 is again with transmission of power and gear II 121 on the gear III 131 with velocity ratio, therefore gear II 121 is identical with the transmission speed of gear III131, direction of rotation, thereby make gear shaft II 12 identical with the transmission speed of gear shaft III 13, direction of rotation (incorgruous), power passes to by butt joint all-in-one-piece tooth bar I 31 and tooth bar II 32 through gear shaft II 12 and gear shaft III 13 and forms on the two-sided tooth bar 3 then, because the equal sprocket drive spindle II 12 in both sides of two-sided tooth bar 3 and gear shaft III 13 carry out spacing to it and it are carried out power transmission, therefore its transmission stability is good, situations such as swing vibration can not occur, the operation noise is little.

The described gear shaft I 11 of present embodiment, gear shaft II 12, gear shaft III 13 all are rotatably installed on the casing 1 by the bearing mode in addition, be specially, the two ends of gear shaft I 11 are rotatably installed on the casing 1 by deep groove ball bearing 41 and selfaligning roller bearing 42, adopt deep groove ball bearing 41 can bear certain axial force and very big radial force, and be convenient to dismounting, and equal 43 rotatable being installed on the casing 1 of the tapered roller bearing by its two ends of gear shaft II 12, gear shaft III 13.

The described casing of present embodiment also is provided with plug cock 5 and oil sealing device in addition, on the described casing 1 corresponding to being provided with shaft-cup 6 (only indicating the shaft-cup 6 of gear shaft I 11 among Fig. 2) on gear shaft I 11, gear shaft II 12, the gear shaft III 13.

Its up-down mode of incongruous transmission lifter described in the utility model has cam, oil cylinder, screw mandrel, steel ball screw mandrel, individual gears, monodentate bar, bent wheel, eccentric wheel, cylinder, chain, is with synchronously, is applicable to injection machine, extrusion press, lathe, Packing Machine, air-pressure forming machine, clicker press machine, BOPS molding machine etc.

Claims

1. incongruous transmission lifter, include casing, it is characterized in that also including input flange, two-sided tooth bar, described input flange is installed on the casing and this input flange is provided with input shaft, this input shaft the inner is provided with the input gear, rotate on the described casing and be provided with gear shaft I, gear shaft II, gear shaft III, gear I with the input gear engagement of input shaft is fixedly connected on the described gear shaft I, gear II has been fixedly connected on the described gear shaft II, gear III has been fixedly connected on the described gear shaft III, described gear II and the same velocity ratio of gear III, described gear shaft II and the same velocity ratio of gear shaft III, described gear shaft I and gear shaft III are arranged at gear shaft II both sides, and the gear II two ends on the gear shaft II are linked with gear shaft I and gear III engagement respectively, described two-sided tooth bar is made up of relative butt joint all-in-one-piece tooth bar I and tooth bar II, and this two-sided tooth bar is arranged between gear shaft II and the gear shaft III, and the tooth bar I of this two-sided tooth bar and tooth bar II cooperate with the gear shaft II and the gear shaft III engagement driving of its both sides respectively.

2. incongruous transmission lifter according to claim 1 is characterized in that: described tooth bar I is fixedly connected into two-sided tooth bar with tooth bar II by straight pin.

3. incongruous transmission lifter according to claim 1 and 2 is characterized in that: described gear I, gear II, gear III are fixedly installed in gear shaft I, gear shaft II, gear shaft III respectively by the keyway connecting mode.

4. incongruous transmission lifter according to claim 3 is characterized in that: on the described casing corresponding to being provided with shaft-cup on gear shaft I, gear shaft II, the gear shaft III.