CN207777324U - A kind of electric cylinder - Google Patents

Abstract

The utility model provides a kind of electric cylinder, including external motive device, leading screw, nut, mandril and it is coupled disk, the external motive device is connect with leading screw, and the nut is covered on the leading screw, mandril is fixed at the top of the nut, the top of the mandril is connected with disk is coupled.The utility model has the beneficial effects that：Due to the adoption of the above technical scheme, can provide that a kind of thrust is big, transmission intensity is high, guiding accuracy is good, shock resistance, extra long life, low noise, there is the electric cylinder that can use Xi oil lubrication.

Description

A kind of electric cylinder

Technical field

The utility model belongs to mechanical transmission fields, more particularly, to a kind of electric cylinder.

Background technology

Currently, electric cylinder is mainly motor by synchronous belt, driving lead screw rotation, lead screw rotation passes through screw drive The hollow piston rod being fixed together with nut is for linear motion.Lead screw uses single-ended support.It is small to be driven intensity, rigidity is low.It should Electric cylinder nut is unilateral step structure with hollow piston rod connection type, determines suitable for projecting motion, is unfavorable for drawing Tight action is completed.The motor piston rod is circle, and when movement has rotational action, and throw the reins to just transmission failure.Anti-rotation structure Complexity needs to consider loading condition.For rotary load, just need to install other structures additional, for preventing piston rod from turning It is dynamic.The structurally live stopper rod is hollow barrel structure, and for long stroke electric cylinder, the precision and economy of linear motion are one Urgent problem to be solved.The electric cylinder of the structure is mainly grease lubrication, just greatly reduces the longevity of screw nut driven in this way Life, lubrication is not in place, and transmission portion fever burns out leading screw and nut causes electric cylinder to fail.

Invention content

In view of this, the utility model is directed to a kind of electric cylinder.

In order to achieve the above objectives, the technical solution of the utility model is realized in：

A kind of electric cylinder, including external motive device, leading screw, nut, mandril and be coupled disk, the external motive device with Leading screw connects, and covers the nut on the leading screw, is fixed with mandril at the top of the nut, the top of the mandril be coupled Disk connects.

Further, the external motive device includes motor, motor gear and driving gear, the output shaft of the motor It is connect with motor gear, the motor gear drives the driving gear, the driving gear to be connect with leading screw.

Further, the motor gear drives the driving gear by intermediate gear.

Further, further include the seal cavity being made of drive end bearing bracket, cylinder barrel and rear end cap, one end of the leading screw is stretched into One end of the seal cavity, the mandril is stretched out out of described seal cavity, and is coupled disk connection with external.

Further, it is marked with lubricating oil in the seal cavity.

Further, further include box body of speed reducer, the motor gear and driving gear are located at the box house, described The output shaft of the motor stretches into box house on the outside of the box body of speed reducer.

Further, between the nut and mandril it is rigid connection or flexible connection.

Further, the quantity of the mandril is 2 or 2 or more.

The utility model has the advantages and positive effects of：

Due to the adoption of the above technical scheme, can provide that a kind of thrust is big, transmission intensity is high, guiding accuracy is good, shock resistance, Extra long life, low noise have the electric cylinder that can use Xi oil lubrication.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also It can be obtain other attached drawings according to these attached drawings.

Fig. 1 is the structural schematic diagram of the utility model.

In figure：

1, motor 2, motor gear 3, intermediate gear 4, driving gear

5, leading screw 6, nut 7, mandril 8, connection disk

9, drive end bearing bracket 10, cylinder barrel 11, rear end cap 12, box body of speed reducer

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work The every other embodiment obtained, shall fall within the protection scope of the present invention, in the absence of conflict, the utility model In embodiment and embodiment in feature can be combined with each other.

Many details are elaborated in the following description in order to fully understand the utility model, but this practicality is new Type can also be implemented using other different from other manner described here, and those skilled in the art can be without prejudice to this reality With doing similar popularization in the case of novel intension, therefore the utility model is not limited by following public specific embodiment.

Secondly, the utility model combination schematic diagram is described in detail, when the utility model embodiment is described in detail, for ease of Illustrate, indicate that the sectional view of device structure can disobey general proportion and make partial enlargement, and the schematic diagram is example, The range of the utility model protection should not be limited herein.In addition, should include length, the three-dimensional of width and height in actual fabrication Bulk.

In the description of the present invention, it should be understood that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower", The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of describing the present invention and simplifying the description, rather than indicate Or imply that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore cannot understand For limitations of the present invention.In addition, term " first ", " second " etc. are used for description purposes only, and should not be understood as indicating Or it implies relative importance or implicitly indicates the quantity of indicated technical characteristic." first ", " second " etc. are defined as a result, Feature can explicitly or implicitly include one or more this feature.It is in the description of the present invention, unless another It is described, the meaning of " plurality " is two or more.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally Connection；It can be mechanical connection, can also be electrical connection；Can be directly connected, can also indirectly connected through an intermediary, It can be the connection inside two elements.For the ordinary skill in the art, on being understood by concrete condition State the concrete meaning of term in the present invention.

As shown in Figure 1, the utility model includes motor 1, motor gear 2, driving gear 4, leading screw 5, nut 6,7 and of mandril It is coupled disk 8, the output shaft of the motor 1 is connect with motor gear 2, and the motor gear 2 drives the drive by intermediate gear 3 Moving gear 4, the driving gear 4 are connect with leading screw 5, the nut 6 are covered on the leading screw 5, the top of the nut 6 is fixed There are 3 mandrils 7, the top of the mandril 7 to be connected with disk 8 is coupled.

Further include box body of speed reducer 12, the motor gear 2 and driving gear 4 are located at the box house, described The output shaft of motor 1 stretches into box house from the outside of the box body of speed reducer 12.

Further include the seal cavity being made of drive end bearing bracket 9, cylinder barrel 10 and rear end cap 11, one end of the leading screw 5 is from described The seal cavity is stretched into inside box body of speed reducer 12, one end of the mandril 7 is stretched out out of described seal cavity, and with outside Connection disk 8 connect, be marked with lubricating oil in the seal cavity.

In use, electric cylinder is rotated by the motor on speed reducer, and then drive the motor tooth on motor output shaft Wheel, motor gear drive driving gear to rotate by intermediate gear, and driving gear links together with leading screw.Drive gear rotation Turn, while leading screw rotates, leading screw rotation, drives lift nut movement, 3 mandrils to be fixed on nut by worm drive, push up Bar again with is coupled disk and links together, to be coupled disk realization lifting action under mandril drive.

It is marked with lubricating oil in the seal cavity, can realize that feed screw nut is driven in oil bath, realizes sufficient lubrication, it is right Continuously operating plays following effect to electric cylinder for a long time：

1. reducing friction coefficient, power consumption is reduced；

2. reducing abrasion, part is kept to coordinate precision, improves service life；

3. reducing temperature, by lubricating oil flow, the heat that running part generates is taken out of, is transmitted to knot outside cylinder barrel etc. On component, heat dissipation area is increased, is conducive to the normal use of mechanism of working around the clock equipment, keeps the machinery of this component strong Degree；

4. preventing from corroding, metal surface is protected, electrochemical corrosion is prevented；

5. cleaning flushing action, using lubricating oil flow, the particle generated in movement, which is taken up, prevents pulled surface quilt Solid impurity scratches, and driving member surface is made to keep good quality and surface roughness；

6. sealing function prevents sewage or other dusts, impurity from invading pulled surface；

7. reducing vibration；

8. reducing noise to generate.

Lubricating oil can be regularly replaced, and can also use circulating filtration structure, further increase electric cylinder performance.

The nut is to be connect with screw on the outside of nut with mandril connection type, is suitable for projecting motion, is also conducive to Tensioning action is completed.

This programme uses more push rod structure, and for long stroke electric cylinder, linear motion can reach better precision and drop Low cost.

The utility model transmission link is few, reasonable for structure, and drive gap is small, and low noise is energy saving, totally, high rigidity, anti-impact It hits, long service life, and manufacturing cost is low, it is easy to accomplish standardization, modularization.Transmission is accurate, and feed screw nut's abrasion is few, weight Multiple precision is high, stable work in work.High power output, drive mechanism is simple, is particularly suitable for the application in engineering machinery, lubricating oil It is conveniently replaceable, reduces after-sales service cost, guide rod structure transmission, guiding accuracy is good, rigidity foot.

The embodiments of the present invention are described in detail above, but the content is only the preferable of the utility model Embodiment should not be considered as limiting the scope of the present invention.It is made according to the scope of application of this utility model equal Deng variation and improvement etc., should all still belong within the patent covering scope of the utility model.

Claims (8)

1. a kind of electric cylinder, it is characterised in that：Including external motive device, leading screw (5), nut (6), mandril (7) and it is coupled disk (8), the external motive device is connect with leading screw (5), and the nut (6) is covered on the leading screw (5), the nut (6) Top is fixed with mandril (7), and the top of the mandril (7) is connected with disk (8) is coupled.

2. electric cylinder according to claim 1, it is characterised in that：The external motive device includes motor (1), motor tooth (2) and driving gear (4) are taken turns, the output shaft of the motor (1) is connect with motor gear (2), and the motor gear (2) drives institute Driving gear (4) is stated, the driving gear (4) connect with leading screw (5).

3. electric cylinder according to claim 2, it is characterised in that：The motor gear (2) is driven by intermediate gear (3) The driving gear (4).

4. electric cylinder according to claim 1, it is characterised in that：Further include by drive end bearing bracket (9), cylinder barrel (10) and rear end cap (11) seal cavity is stretched into the seal cavity formed, one end of the leading screw (5), and one end of the mandril (7) is from described It is stretched out in seal cavity, and is coupled disk (8) connection with external.

5. electric cylinder according to claim 4, it is characterised in that：It is marked with lubricating oil in the seal cavity.

6. electric cylinder according to claim 2, it is characterised in that：Further include box body of speed reducer (12), the motor gear (2) and driving gear (4) is located at the box house, and the output shaft of the motor (1) is from the box body of speed reducer (12) Outside stretch into box house.

7. electric cylinder according to claim 1 or 2, it is characterised in that：It is rigidity between the nut (6) and mandril (7) Connection or flexible connection.

8. electric cylinder according to claim 1 or 2, it is characterised in that：The quantity of the mandril (7) be 2 or 2 with On.