CN207526978U - A kind of trunnion harden structure applied to straight line actuation mechanism - Google Patents
A kind of trunnion harden structure applied to straight line actuation mechanism Download PDFInfo
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- CN207526978U CN207526978U CN201721297054.4U CN201721297054U CN207526978U CN 207526978 U CN207526978 U CN 207526978U CN 201721297054 U CN201721297054 U CN 201721297054U CN 207526978 U CN207526978 U CN 207526978U
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- trunnion
- cylinder barrel
- plate
- straight line
- actuation mechanism
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Abstract
The utility model is related to a kind of trunnion harden structure applied to straight line actuation mechanism, step is respectively equipped with close to the position at both ends, baseplane and the trunnion plate end of step, which communicate, to be formed two and connect plane wherein on the inside of trunnion plate；The first mounting hole coordinated with fixed plate is provided in one connection plane；The second mounting hole coordinated with cylinder barrel drive end bearing bracket is provided in another connection plane；Trunnion hole is provided on trunnion plate；Step depth is H, B/2<H<B, B are trunnion plate thickness；The distance between the step at trunnion plate both ends is L, and L=L0 S, L0=L1+L2, wherein L1 represent the distance between step in the front end face to rear end of cylinder barrel, and L2 represents in the rear end of cylinder barrel step to the distance between bearing rear support and fixed plate phase-contact surface；S pre-tightens decrement for cylinder barrel.The utility model can ensure straight line actuation mechanism in use, disclosure satisfy that intensity requirement, stress are more balanced.
Description
Technical field
The utility model is related to straight line actuation mechanism more particularly to a kind of trunnion applied to straight line actuation mechanism are hardened
Structure.
Background technology
With the rapid development and progress of modern industry and equipment manufacture, in pushing away for digital technology and microprocessing etc.
It moves under the influence of, people are more and more deeper to the performance of equipment execution terminal and the precision controlling requirement of running position.Conventional hydraulic,
Pneumatic actuator is due to its position poor controllability, inconvenient maintenance, system structure is complicated, sensitivity is poor, environmental sensibility is deep, and
The features such as causing larger leakage and noise pollution, has been difficult in adapt to the needs of current industrial development.And with electronic technology
Deep speed development, the servo electric jar (hereinafter referred to as electric cylinder) of one of Electric Actuator as straight line actuation mechanism be with
The development of modern industry and the dynamic foundation component gradually to grow up, its straight line start deeper as integrated level and precision
The convert rotational motion of motor can be linear motion by mechanism.
The transmission mechanism of the straight line actuation mechanism drives leading screw operating, while leading screw rotates, is revolved by constraining nut
Turn so that the convert rotational motion of leading screw is moved in a straight line for nut along cylinder barrel；The push rod housing phase of nut and push-rod assembly
Even, push rod housing drives follow-up moving part to move in a straight line with the movement of nut.
Above-mentioned nut is arranged at push rod housing in cylinder barrel.As depicted in figs. 1 and 2,3 inner hollow of cylinder barrel and front end and
The inner wall of rear end is equipped with step, is referred to as in front end step in step and rear end, during installation, step in the front end of cylinder barrel 3
It leans against on cylinder barrel drive end bearing bracket 7, step is leaned against in bearing front support 81 in the rear end of cylinder barrel 3, and cylinder barrel 3 is supported using stud, is compressed
Between cylinder barrel drive end bearing bracket 7 and bearing front support 81, the fixation of its position is realized.Bearing rear support 82 is put from the rear end of cylinder barrel 3
Inside cylinder barrel 3, certain support is cooperatively provided for it with bearing front support 81.The bearing rear support 82 is fixed on fixation
On plate 10, the side of cylinder barrel drive end bearing bracket 7 and fixed plate 10 is respectively connected with trunnion plate 13.Existing trunnion plate 13 is two pieces, knot
Structure is rectangular flat plate, and one of trunnion plate passes through four perpendicular to above-mentioned cylinder barrel drive end bearing bracket 7 and the front end face of fixed plate 10
A fixing screws are fixed；Another piece of trunnion plate 13 passes through four perpendicular to above-mentioned cylinder barrel drive end bearing bracket 7 and the rear end face of fixed plate 10
A fixing screws are fixed.Trunnion plate 13 is connected to for the trunnion of stator bore.
When straight line actuation mechanism is by axial tension, main stressed member is followed successively by from right to left：
Push-rod assembly, feed screw nut component and transmission system, two spring bearings of nut right end, bearing front support, cylinder barrel,
Cylinder barrel drive end bearing bracket, supporting studs, trunnion plate fixing screws for stator bore drive end bearing bracket, trunnion component (trunnion plate, trunnion).
When by axial compressive force, main stressed member is followed successively by from right to left：
Push-rod assembly, feed screw nut component and transmission system, two spring bearings of left end, bearing rear support, fixed plate are used
In the supporting studs, the trunnion plate fixing screws that are fastened and fixed plate, trunnion component (trunnion plate, trunnion).
Since straight line actuation mechanism is capable of providing being used as power for 90KN, between trunnion plate and fixed plate mutually fixed screw by
Power situation is than relatively hazardous, and most of component stress value is all bigger in structure.However in existing straight line actuation mechanism, ear
Axillare stress is to be cut shared, therefore trunnion by pre-tightening frictional force that trunnion plate fixing screws generate and positioning pin
For plate fixing screws only under the premise of enough preloads, the trunnion component including trunnion plate and trunnion could transmit very big power.
Since the trunnion plate in existing structure is simple slab construction, the uncertain of the frictional force that trunnion plate fixing screws generate is pre-tightened
Property leads to stress in existing straight line actuation mechanism between trunnion plate 13 and fixed plate 10, trunnion plate 13 and cylinder barrel drive end bearing bracket 7 not
It is balanced.
Utility model content
The purpose of this utility model is in view of the problems of the existing technology, to provide a kind of applied to straight line actuation mechanism
Trunnion harden structure can ensure straight line actuation mechanism in use, disclosure satisfy that intensity requirement, stress are more balanced.
The purpose of this utility model is achieved through the following technical solutions：
The utility model provides a kind of trunnion harden structure applied to straight line actuation mechanism, and the trunnion harden structure is tablet
Structure, wherein, the position on the inside of the trunnion harden structure close to both ends is respectively equipped with step (13-4), and the step (13-4)
Baseplane communicated with the end of the slab construction, formed two connection planes；First is provided in one of connection plane
Bolt hole on mounting hole (13-1), with fixed plate (10) end face coordinates to install trunnion plate fastening bolt；Another connects
It connects and the second mounting hole (13-2) is provided in plane, it is tight to install trunnion plate with the bolt hole cooperation of cylinder barrel drive end bearing bracket (7) end face
Fixing bolt；Trunnion hole (13-3) is provided in the trunnion harden structure, for connecting trunnion；
The depth of the step (13-4) is set as H, and the H meets：B/2<H<B, wherein B are the thickness of trunnion plate；
If the distance between the step (13-4) at trunnion plate both ends is L, then the L meets following relationship：
L=L0-S
Wherein, L0 be theoretical length value, the L0=L1+L2, wherein L1 represent cylinder barrel (3) front end to rear end in step it
Between distance, L2 represent cylinder barrel (3) rear end in step between bearing rear support (82) and fixed plate (10) phase-contact surface
Distance；S pre-tightens decrement for cylinder barrel.
It is highly preferred that the H=3mm.
It is highly preferred that the S=0.2mm.
It is highly preferred that first mounting hole (13-1) is slot hole.
The utility model has the following technical effect that it can be seen from above-mentioned the technical solution of the utility model：
The utility model is respectively equipped with step by the position close to both ends on the inside of trunnion plate, passes through the step
Depth H value allows trunnion plate directly to transmit the force to fixed plate and cylinder barrel drive end bearing bracket by itself step；By this two
Length value between a step causes the step side of trunnion plate and fixed plate medial surface, and (i.e. fixed plate is against cylinder barrel front end face
One side) between can there are gap S, during so as to ensure that straight line actuation mechanism by 90kN pulling force or pressure, cylinder barrel will not and cylinder
Generate gap between cylinder drive end bearing bracket or fixed plate, thus can cause trunnion plate and fixed plate, trunnion plate and cylinder barrel drive end bearing bracket 7 it
Between stress equalization.
Description of the drawings
Fig. 1 is trunnion plate of the prior art, cylinder barrel, bearing front support, bearing rear support, cylinder barrel drive end bearing bracket and fixed plate
Structure diagram after combination；
Fig. 2 is the structure diagram after trunnion plate of the prior art is combined with cylinder barrel drive end bearing bracket and fixed plate；
Fig. 3 is the structure diagram of the trunnion plate of the utility model；
Fig. 4 is the schematic view of the mounting position of the trunnion plate of the utility model；
Fig. 5 is the partial enlarged view in A portions in Fig. 4；
Fig. 6 is the partial enlarged view in B portions in Fig. 4.
In figure：
Cylinder barrel 3, cylinder barrel drive end bearing bracket 7, bearing front support 81, bearing rear support 82, fixed plate 10, trunnion plate 13；First peace
Fill hole 13-1, the second mounting hole 13-2, trunnion hole 13-3, step 13-4.
Specific embodiment
The technical solution of the utility model is described in further details below with reference to attached drawing.
Embodiment one
The utility model provides a kind of trunnion harden structure applied to straight line actuation mechanism, and structure is as shown in Figure 3.It can be with
Find out, position of the trunnion plate 13 for slab construction and close to both ends on the inside of tablet is respectively equipped with step 13-4, and this
The baseplane of rank 13-4 is communicated with tablet end, forms two connection planes；The first installation is provided in one of connection plane
Bolt hole on hole 13-1, with 10 end face of fixed plate coordinates to install trunnion plate fastening bolt；In order to facilitate micro-adjustment trunnion
The installation site of 13 length direction of plate, first mounting hole 13-1 are set as slot hole；Second is provided in another connection plane
Mounting hole 13-2 coordinates to install trunnion plate fastening bolt with the bolt hole of 7 end face of cylinder barrel drive end bearing bracket.It is also provided on trunnion plate
Penetrating trunnion hole 13-3, for connecting trunnion.
A length of L of the step of trunnion plate, width B, depth H；The width of B=trunnion plates therein.
In the case where can be ensured that step can bear corresponding active force, the depth for making step as possible is smaller, but
The synthesis force-bearing situation of processing technology and trunnion plate is also considered simultaneously, the depth of trunnion plate step is set as H, the B/
2<H<B, preferred H=3mm.Since the depth of the step 13-4 of trunnion plate is H=3mm so that trunnion plate can pass through itself
Step directly transmits the force to fixed plate 10 and cylinder barrel drive end bearing bracket 7.
In order to which the step 13-4 for ensureing trunnion plate plays the role of bearing load in real process, in straight line actuation mechanism
Practical set in, preload compression can be carried out to cylinder barrel using supporting studs, to ensure the straight line actuation mechanism by 90kN pulling force
Or during pressure, cylinder barrel will not generate gap between cylinder barrel drive end bearing bracket 7 or fixed plate 10.For this purpose, when designing trunnion plate step,
Be specifically contemplated that should ensure that between the step 13-4 of trunnion plate and cylinder barrel drive end bearing bracket 7 or fixed plate 10 it is certain it is reserved between
Gap, for this purpose, as shown in Fig. 6, Fig. 1 and Fig. 2, the value for designing the length L between two step 13-4 of trunnion plate should be in theory
(theoretical length value is to install other structures such as cylinder barrel 3, cylinder barrel drive end bearing bracket 7, bearing front support 81 and fixed plate to length value L 0
After 10 and in the case of trunnion plate is not installed, two step 13- of trunnion plate for fitting just with cylinder barrel drive end bearing bracket 7 and fixed plate 10
Ideal length between 4) on the basis of subtract cylinder barrel pre-tighten decrement S, the preferably S=0.2mm.It is embodied in：
If the distance between the step 13-4 at trunnion plate both ends is L, then the L meets following relationship：
L=L0-S
Wherein, L0 is theoretical length value, the L0=L1+L2, wherein wherein L1 represents the front end face of cylinder barrel to rear end Nei Tai
Distance between rank, L2 represent that step is to the distance between bearing rear support 82 and 10 phase-contact surface of fixed plate in the rear end of cylinder barrel 3；
S pre-tightens decrement for cylinder barrel.
As shown in Figure 4, Figure 5 and Figure 6, trunnion plate 13 therein is two pieces to the installation site of the trunnion plate of the utility model,
One of trunnion plate 13 passes through four fixing screws and consolidates perpendicular to above-mentioned cylinder barrel drive end bearing bracket 7 and the front end face of fixed plate 10
It is fixed；Another piece of trunnion plate 13 passes through four fixing screws and consolidates perpendicular to above-mentioned cylinder barrel drive end bearing bracket 7 and the rear end face of fixed plate 10
It is fixed.
After the trunnion plate 13 of the utility model it can be seen from Fig. 4, Fig. 5 and Fig. 6 is installed, the step side of trunnion plate 13
There are gap S for meeting between the medial surface (against the one side of cylinder barrel 3) of fixed plate 10.The depth H of step ensure that trunnion plate can
Directly to transmit the force to fixed plate 10 and cylinder barrel drive end bearing bracket 7 by itself step.
Below to installing the existing straight line actuation mechanism without step trunnion plate and being equipped with this practicality of step trunnion plate
Novel straight line actuation mechanism, the intensity in tension and the two institute stress that is pressurized do contrast experiment, comparison structure such as table 1
It is shown：
1 prior art of table and the utility model are in pair of tension and compression critical component institute therein stress intensity
Compare table
As can be seen from Table 1, the utility model on trunnion plate by setting step so that is equipped with the utility model trunnion
For the straight line actuation mechanism of plate relative to the critical component of existing straight line actuation mechanism, there is the very big range of decrease in suffered intensity.
On the one hand the step design of trunnion plate can significantly reduce the maximum stress of each critical component in device
Value, on the other hand also make each critical component bearing distribution more rationally with uniformly.
Although the utility model has been described by way of example and in terms of the preferred embodiments, embodiment does not limit the utility model.Not
It is detached from the spirit and scope of the utility model, any equivalence changes done or retouching, also belongs to the guarantor of the utility model
Protect range.Therefore the scope of protection of the utility model should be using the content that claims hereof is defined as standard.
Claims (4)
1. a kind of trunnion harden structure applied to straight line actuation mechanism, the trunnion harden structure is slab construction, which is characterized in that
Position on the inside of the trunnion harden structure close to both ends is respectively equipped with step (13-4), and the bottom of the step (13-4) is put down
Face is communicated with the end of the slab construction, forms two connection planes；The first mounting hole is provided in one of connection plane
Bolt hole on (13-1), with fixed plate (10) end face coordinates to install trunnion plate fastening bolt；Another connection plane
On be provided with the second mounting hole (13-2), coordinate trunnion plate fastening bolt is installed with the bolt hole of cylinder barrel drive end bearing bracket (7) end face；
Trunnion hole (13-3) is provided in the trunnion harden structure, for connecting trunnion；
The depth of the step (13-4) is set as H, and the H meets：B/2<H<B, wherein B are the thickness of trunnion plate；
If the distance between the step (13-4) at trunnion plate both ends is L, then the L meets following relationship：
L=L0-S
Wherein, L0 is theoretical length value, the L0=L1+L2, wherein L1 represent in the front end face to rear end of cylinder barrel between step away from
From step in the rear end that, L2 represents cylinder barrel (3) to the distance between bearing rear support (82) and fixed plate (10) phase-contact surface；S
Decrement is pre-tightened for cylinder barrel.
A kind of 2. trunnion harden structure applied to straight line actuation mechanism according to claim 1, which is characterized in that the H
=3mm.
A kind of 3. trunnion harden structure applied to straight line actuation mechanism according to claim 1, which is characterized in that the S
=0.2mm.
4. a kind of trunnion harden structure applied to straight line actuation mechanism according to claim 1, which is characterized in that described
One mounting hole (13-1) is slot hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721297054.4U CN207526978U (en) | 2017-10-10 | 2017-10-10 | A kind of trunnion harden structure applied to straight line actuation mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721297054.4U CN207526978U (en) | 2017-10-10 | 2017-10-10 | A kind of trunnion harden structure applied to straight line actuation mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207526978U true CN207526978U (en) | 2018-06-22 |
Family
ID=62569748
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721297054.4U Expired - Fee Related CN207526978U (en) | 2017-10-10 | 2017-10-10 | A kind of trunnion harden structure applied to straight line actuation mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207526978U (en) |
-
2017
- 2017-10-10 CN CN201721297054.4U patent/CN207526978U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180622 Termination date: 20191010 |