CN103883866B - With the check device of the automatic refrigerating unit of mechanical type - Google Patents
With the check device of the automatic refrigerating unit of mechanical type Download PDFInfo
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- CN103883866B CN103883866B CN201410115156.4A CN201410115156A CN103883866B CN 103883866 B CN103883866 B CN 103883866B CN 201410115156 A CN201410115156 A CN 201410115156A CN 103883866 B CN103883866 B CN 103883866B
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- refrigerating unit
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Abstract
The present invention discloses a kind of check device with the automatic refrigerating unit of mechanical type, comprise check device, check device is provided with wobble pump, the two ends of wobble pump all connect check device inner chamber by pipeline, and the pipeline of wherein one end has the bending section being close to check device outer wall, bending section outer wall is glued with radiator element, and the rocking arm of wobble pump is connected with check device inner ring by cam mechanism. The present invention prevents from reducing, owing to check device internal temperature is too high and lost efficacy, the possibility that security incident occurs by check device internal lubrication liquid outer circulation cooling technology, it is to increase the work-ing life of check device; Ensure that the normal operation of continuous conveying equipment and the normal of follow-up work effectively arrange, ensure that carrying out smoothly of production.
Description
Technical field
The present invention relates to a kind of check device, particularly relate to a kind of check device with the automatic refrigerating unit of mechanical type.
Background technology
Check device is used for inclination formula (upwards convey materials, hereinafter referred to as " upper fortune ") continuous conveying equipment, it is a kind of non-return device designed in order to generation reversing when preventing upper fortune continuous conveying equipment from stopping or smooth phenomenon, and it is one of important leverage of upper fortune continuous conveying equipment security, along with mine, colliery, iron and steel, while the industry developments such as cement, also upper fortune continuous conveying equipment possessed high spud angle, big operational throughput, long distance, the characteristics such as high belt speed are had higher requirement, therefore at high spud angle, how the upper fortune continuous conveying equipment of big operational throughput ensures the normal operation of upper fortune continuous conveying equipment and runs into emergency situation to stop and do not produce reversing or smooth and avoid seeming of accident particularly important, and then the effect of check device also seems particularly outstanding and can not be ignored, once check device lost efficacy, serious security incident may be caused, particularly at mine, losing efficacy once check device just has the safety of up to a hundred people to be threatened, in general, owing to most of product its inside under temperature environment can not be subject to uniform heating and cooling, thus, when high temperature, the compressive yield strength of check device interior metal voussoir reduces, if temperature has exceeded recrystallize point, the thermal effectiveness of metal will be affected, changing physics of metals characteristic, in addition, high temperature can also cause the permanent distortion of metal " deliquescing " with the form of creep, and then change physical property or the size of metallic substance, cause mortality to lose efficacy, therefore the running how enabling the lubricating fluid of check device inside keep a good working temperature to make check device permanently effective is the important means effectively prevented accident and occur, and traditional check device is being blank in this respect.
For the running how enabling the lubricating fluid of check device inside keep a good working temperature to make check device permanently effective, effectively ensure the safe and reliable operation of upper fortune continuous conveying equipment, a kind of automatic refrigerating unit of mechanical type of now design, make the voussoir temperature of check device sharply rise and can not get lowering the temperature timely due to friction exactly owing to affecting one of most obvious characteristic that check device lost efficacy, therefore can utilize the temperature reducing check device internal lubrication liquid make check device internal lubrication liquid outer circulation cooling thus minimizing owing to temperature arrising caused by friction is to the destruction of check device.
Summary of the invention
It is an object of the invention to provide a kind of check device with the automatic refrigerating unit of mechanical type, solve the Problem of Failure that check device causes due to friction the factors such as heating, abrasion to produce in long-time running.
The object of the present invention is realized by following technical proposals:
A kind of check device with the automatic refrigerating unit of mechanical type, comprise check device, check device is provided with wobble pump, the two ends of wobble pump all connect check device inner chamber by pipeline, and the pipeline of wherein one end has the bending section being close to check device outer wall, bending section outer wall is glued with radiator element, and the rocking arm of wobble pump is connected with check device inner ring by cam mechanism.
As preferably, described cam mechanism comprises cam and connecting rod, cam is arranged on outside check device inner ring, and the rocking arm of connecting rod and wobble pump is hinged.
As preferably, being provided with shock spring bottom described connecting rod.
As preferably, described connecting rod is provided with saw-tooth grooves, on check device, respective link arranges ratchet.
As preferably, the pipeline between described bending section and check device inner chamber being installed in parallel strainer and surplus valve.
As preferably, described strainer is oil gauze strainer.
As preferably, described radiator element is hollow structure, and is provided with entrance and exit, in it, there is cooling fluid.
As preferably, described wobble pump is installed on top, check device outer ring, strainer and surplus valve are located at bottom check device, and radiator element is consistent with check device collar wall shape, and detachable are connected on outer ring, and pipeline bending section is close between outer ring and radiator element.
As preferably, the motion of the connecting rod of described cam mechanism meets cosine acceleration motion rule.
The present invention realizes process:
When check device internal lubrication liquid temp is too high need cooling time, ratchet departs from cam link, the rotating band moving cam of check device inner ring rotates, connecting rod moves reciprocatingly up and down under the effect of cam and spring and drives wobble pump work, the lubricating fluid of check device inner chamber is extracted out by wobble pump by pipeline, lubricating fluid while extracting out first after strainer filters again after radiator element cooling heat dissipation again through wobble pump, finally return to check device inner thus complete the cold filtration process of check device lubricating fluid.
When filter stoppage, automatically will walk around strainer by surplus valve to avoid the excessive lubricating fluid of local pressure and return in working connection, then it is inner to return to check device by radiator element cooling heat dissipation, wobble pump.
When check device internal lubrication liquid temp is not high do not need cooling time, now the connecting rod of ratchet and cam mechanism is connected, when link work to making connecting rod and cam disengages under the effect of ratchet during extreme higher position, wobble pump loses power stopping work, then lubricating fluid is all the time at check device internal lubrication; And then ensure the long-term Effec-tive Function of check device.
Compared with prior art, the useful effect of the present invention is: is prevented owing to check device internal temperature is too high and lost efficacy by check device internal lubrication liquid outer circulation cooling technology, thus reaches the generation of the security incident that prevention caused owing to check device lost efficacy in advance; Ensure that the normal operation of continuous conveying equipment and the normal of follow-up work effectively arrange, ensure that carrying out smoothly of production. Ripe in check device manufacturing technology, and in the simple situation of mechanical organ structure, this invention is easy to realize.
It is embodied in:
1., in structure: each components and parts of the present invention are centered by check device, and the power of close-packed arrays, compact construction, and wobble pump, from the running of check device self, has not only economized extrinsic power source, save and space is installed, more improve the working efficiency of pump;The connection and reasonable arrangement specification of pipeline, each components and parts junction good sealing effect, overall design i.e. energy-conservation but also environmental protection.
2. in the selection of each components and parts: used by the present invention is all common parts and Hydraulic Elements, being easy to manufacture and outsourcing, check device belongs to small serial production, occurs that damage is easy to change at some parts, and the product interchangeability of this invention is good.
3. security: designed cam mechanism connecting rod adopts cosine motion rule, the impact that system is caused by connecting rod is little and cam profile design is mild, and the whole system smooth-going noise that operates is little; In addition, reliability height of the present invention, due to had relevant protector as: surplus valve, ratchet etc. can not affect the normal operation of check device because of the problem of device self.
4. economy: check device must be dismantled from transportation equipment after damage due to check device and reprocess, transportation equipment therefore must be allowed to shut down, after check device reparation or buy new check device and reinstall, transportation equipment could operate again; Once check device damages, can seriously delay the working efficiency of transportation equipment, the progress that impact is produced, cause huge financial loss; For this reason, the working life improving check device seems particularly important, check device designed by the present invention can operate for a long time and do not destroyed by high temperature, increase than traditional check device life-span, reducing the repair rate of check device and buy the expense of new check device, greatly reduce the maintenance cost of check device, the most important is for the long-term Effec-tive Function of whole transportation equipment provides reliable guarantee, improve the conveying efficiency of transportation equipment, reduce the Financial cost that transportation equipment drops into.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the structural representation of cam mechanism of the present invention;
Fig. 3 is the piping layout schematic diagram in Fig. 1;
Fig. 4 is the structural representation of radiator element in the present invention;
Fig. 5 is the right view of radiator element;
Fig. 6 is the displacement curve figure of cam mechanism connecting rod;
Fig. 7 is the speed curve diagram of cam mechanism connecting rod;
Fig. 8 is the acceleration plots of cam mechanism connecting rod;
Fig. 9 is cam mechanism cam method of analysis schematic diagram.
Embodiment
Below in conjunction with specific embodiments and the drawings, the present invention is further illustrated.
As shown in Figures 1 to 5, a kind of check device with the automatic refrigerating unit of mechanical type, comprise check device 1, check device 1 is provided with wobble pump 2, the two ends of wobble pump 2 all connect check device inner chamber by pipeline 3, and the pipeline 3 of wherein one end has " S " the shape bending section 4 being close to check device outer wall, bending section 4 outer wall is glued with radiator element 5, being installed in parallel strainer 6 and surplus valve 7 on pipeline between bending section 4 and check device inner chamber, the rocking arm of wobble pump 2 is connected with check device inner ring by cam mechanism 8.
Described cam mechanism 8 comprises cam 81 and connecting rod 82, connecting rod 82 is provided with saw-tooth grooves 83, on check device 1, respective link arranges ratchet 9, ratchet 9 one end is rotatably connected on check device outer ring, the other end is free end, being provided with shock spring 84 bottom connecting rod 82, cam 81 is arranged on outside check device inner ring, and connecting rod 82 is hinged with the rocking arm of wobble pump 2.
Described strainer 6 is oil gauze strainer.
Described radiator element 5 is hollow structure, and is provided with entrance 51 and outlet 52, has cooling fluid 10 in it.
Described wobble pump 2 is installed on top, check device outer ring, and strainer 6 and surplus valve 7 are located at bottom check device 1, and radiator element 5 is consistent with check device collar wall shape, and detachable is connected on outer ring, and pipeline 3 bending section 4 is close between outer ring and radiator element 5.
The motion of the connecting rod 82 of described cam mechanism 8 meets cosine acceleration motion rule.
Each parts specific design type selecting of the present invention is as follows:
One, the type selecting of pump
Pump selected by the present invention is wobble pump, and wobble pump is easy for installation, and compact construction is reliably practical and convenient, and cost is lower; The type selecting of wobble pump is considered from five aspects according to technical process, i.e. the viscosity of liquid flow rate, discharge capacity, Unit head, liquid, piping layout and operation operating condition etc.; Cavity volume according to check device is relatively little, and the specification selecting shaking pump is conventional oil BSYY type piston-type wobble pump (wherein BS is product category is shaking, and YY is piston-type), is applicable to absorb oil type liquid; The main technical details of oil piston-type wobble pump has flow, lift, the suction journey, back and forth number of times of pump and passes in and out bore; Just can select the pump of different series according to concrete demand according to above parameter.
Two, the design of cam mechanism
Cam mechanism forms primarily of cam and connecting rod two parts, and the form of cam mechanism determines primarily of the motion rule of connecting rod.
1, the link design of cam mechanism
Owing to connecting rod is directly connected with the rocking arm of wobble pump in the present invention, namely the rocker motion rule of wobble pump is the motion rule of cam mechanism connecting rod, learn by the type selecting of above-mentioned wobble pump, the rocker motion rule of wobble pump is to-and-fro movement, and therefore the link work rule of cam mechanism is to-and-fro movement. Owing to connecting rod have employed the design philosophy of ratchet, Gu structurally connecting rod has gone out a saw-tooth grooves design more, meet the use of ratchet.
The Property comparison of link work rule and selection: link work rule relates to parameter speed vmax, acceleration amaxMaximum value, these parameter values reflect the characteristic of motion rule to a certain extent. Therefore when selecting link work rule, it should to the top speed v that motion rule producesmax, maximum acceleration amaxValue and impact carry out com-parison and analysis. If vmaxExcessive, then momentum mv is more big, and great impact easily occurs in connecting rod, jeopardizes the personnel safety of equipment and operator; If acceleration amaxMore big, then mass force is more big, and intensity and wear resistance to mechanism require also more high. Link work rule Property comparison table is as follows:
In upper table: h is that connecting rod pushes away journey; �� is the circular frequency of cam rotation; ��0For connecting rod reach maximum push away journey time the angle that turns over of cam.
By the operating mode of upper table in conjunction with concrete check device, in the present invention, the motion rule of connecting rod selects cosine acceleration motion rule, and its motion law curve is see shown in Fig. 6 to Fig. 8; It is as follows that it pushes away Cheng Fangcheng:
Wherein, s is connecting rod displacement; V is the speed of link work; �� is the acceleration of link work; H is that connecting rod pushes away journey; �� is radian constant;For the angle of cam rotation;For connecting rod reach maximum push away journey time cam rotation angle; �� is the circular frequency of cam rotation.
Know by Fig. 6 and Fig. 7, it is a sinusoidal curve for its velocity curve of cosine acceleration law, and displacement curve is simple harmonic motion curve, so this kind of motion is also referred to as simple harmonic motion, when connecting rod do stop-liter-stop type move time, connecting rod has sudden change at O, A 2 position acceleration, also has soft impulse to produce; But to falling-liter-fall type motion rule and then occur without impact.
2, the cam design of cam mechanism
In choose reasonable after link work rule, in conjunction with concrete condition is existing cam profile carried out detailed design; The method that cam profile design is adopted by the present invention is method of analysis, and method of analysis mainly adopts analytical expression to calculate and determine cam profile. Direct acting roller link dish type cam method of analysis schematic diagram is as shown in Figure 9.
Setting radius of cam base-circle in fig .9 is rbWith link work rule function s=f (��), cam rotates clockwise with constant angular velocity ��. When the roller centre of connecting rod is from B0When rising to a some B, the angle that cam turns over is ��, according to reversal process principle, by B��Point turns over angle �� with (-��) direction around initial point and namely obtains corresponding points B point on cam profile curve, and its coordinate is:
X=(s+s0)cos��,Y=(s+s0) sin ��; In formula: s0For starting position B0The X-coordinate value s of point0=rb; S is when cam turns over angle ��, the displacement s=f (��) of connecting rod, and their real profile curve is the envelope curve that roller justifies race, and namely real profile is the equal space line of theoretical profile, and the distance between them is radius of roller rT. By mathematical theory it will be seen that the parametric equation of coordinate point (x, y) on real profile curve is: In formula: on x', y' are respectively in real profile theory of correspondences profilograph (x, coordinate y) put, (x', y') with (x, y) on same normal, finally draw the profile of cam, and then the structural representation of whole cam mechanism is as shown in Figure 2.
Three, the design of ratchet
The design of ratchet is determined primarily of the position of cam mechanism connecting rod, its effect be check device internal lubrication liquid temp too high need cool time ratchet position turn to a place as shown in Figure 2, now cam driven connecting rod makes wobble pump work, and is detached by the internal high temperature lubricating fluid of check device and cools; When check device internal lubrication liquid temp is not high and does not need cooling, then the position of ratchet turns to b place as shown in Figure 2, and now cam and connecting rod depart from, and pump loses power stopping work, and check device internal lubrication liquid is not pulled out and is not also cooled.
Four, the design of radiator element
See Fig. 4 and Fig. 5, the structure formation that the design of radiator element is pasted outside mainly have employed hollow, its top and bottom devise entrance 51 and the outlet 52 of liquid respectively, can add or change different cooling fluids 10 at any time according to concrete condition, possess the function that can dismantle exchange; Outer bilge construction is close to tubing bending section, with check device outer ring camber line always, so not only saved space but also concrete well heat sinking function, appearance looks elegant compact construction.
Five, the type selecting of strainer
The type selecting principle of strainer of the present invention mainly relies on the composition of lubrication oil properties, impurity and installs several aspects such as structure carrys out type selecting, and selected by comprehensive above feature the present invention is oil gauze strainer. Its location arrangements figure is as shown in Figure 3.
Six, the type selecting of valve
The effect that the present invention arranges valve mainly avoids situation oil circuit being blocked due to filter stoppage to occur, and ensures the normal circulation cooling of check device internal lubrication liquid, has then added a surplus valve on the also oil circuit of strainer, has played the effect of safeguard protection. Its location arrangements figure is as shown in Figure 3.
Seven, the design of pipeline
The principle that the design of patent pipeline of the present invention is followed is, the principle of " cooling of upper entering and lower leaving side ", namely the ingress of pipeline is offered in check device upper end, lower end at check device has offered oil outlet, pipeline is designed with multistage " S " shape bending section at check device side end, and check device outer wall is close in one end, and radiator element is close in one end, arrange heat dissipation of pipeline efficiency height, compact construction like this. Its layout drawing is as shown in Figure 3.
The foregoing is only the better embodiment of the present invention, not in order to limit the present invention, all any amendment, equivalent replacement and improvement etc. done within the spirit and principles in the present invention, all should be included within protection scope of the present invention.
Claims (7)
1. the check device with the automatic refrigerating unit of mechanical type, comprise check device, it is characterized in that: on check device, be provided with wobble pump, the two ends of wobble pump all connect check device inner chamber by pipeline, and the pipeline of wherein one end has the bending section being close to check device outer wall, bending section outer wall is glued with radiator element, the rocking arm of wobble pump is connected with check device inner ring by cam mechanism, pipeline between described bending section and check device inner chamber strainer and surplus valve have been installed in parallel, described wobble pump is installed on top, check device outer ring, strainer and surplus valve are located at bottom check device, radiator element is consistent with check device collar wall shape, radiator element is detachable to be connected on outer ring, pipeline bending section is close between outer ring and radiator element.
2. the check device with the automatic refrigerating unit of mechanical type according to claim 1, it is characterised in that: described cam mechanism comprises cam and connecting rod, and cam is arranged on outside check device inner ring, and the rocking arm of connecting rod and wobble pump is hinged.
3. the check device with the automatic refrigerating unit of mechanical type according to claim 2, it is characterised in that: it is provided with shock spring bottom described connecting rod.
4. the check device with the automatic refrigerating unit of mechanical type according to claim 2, it is characterised in that: described connecting rod is provided with saw-tooth grooves, and on check device, respective link arranges ratchet.
5. the check device with the automatic refrigerating unit of mechanical type according to claim 4, it is characterised in that: described strainer is oil gauze strainer.
6. the check device with the automatic refrigerating unit of mechanical type according to claim 5, it is characterised in that: described radiator element is hollow structure, and is provided with entrance and exit, has cooling fluid in it.
7. the check device with the automatic refrigerating unit of mechanical type according to the arbitrary item of claim 1 to 6, it is characterised in that: the motion of the connecting rod of described cam mechanism meets cosine acceleration motion rule.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115156.4A CN103883866B (en) | 2014-03-24 | 2014-03-24 | With the check device of the automatic refrigerating unit of mechanical type |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410115156.4A CN103883866B (en) | 2014-03-24 | 2014-03-24 | With the check device of the automatic refrigerating unit of mechanical type |
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| Publication Number | Publication Date |
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| CN103883866A CN103883866A (en) | 2014-06-25 |
| CN103883866B true CN103883866B (en) | 2016-06-08 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE443290A (en) * | ||||
| GB352347A (en) * | 1929-10-29 | 1931-07-09 | Motorenfabrik Deutz Ag | Apparatus for avoiding too high lubricating oil pressure on starting internal combustion engines |
| CN101716572A (en) * | 2009-11-13 | 2010-06-02 | 徐州大陆振动机械有限公司 | Oil cooling device outside vibrating screen box |
| CN201715216U (en) * | 2010-07-02 | 2011-01-19 | 安徽天一重工股份有限公司 | Automatic-regulating lubricating device of coupler |
| CN203239802U (en) * | 2013-05-27 | 2013-10-16 | 浙江鑫隆机械制造有限公司 | Backstop structure |
-
2014
- 2014-03-24 CN CN201410115156.4A patent/CN103883866B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE443290A (en) * | ||||
| GB352347A (en) * | 1929-10-29 | 1931-07-09 | Motorenfabrik Deutz Ag | Apparatus for avoiding too high lubricating oil pressure on starting internal combustion engines |
| CN101716572A (en) * | 2009-11-13 | 2010-06-02 | 徐州大陆振动机械有限公司 | Oil cooling device outside vibrating screen box |
| CN201715216U (en) * | 2010-07-02 | 2011-01-19 | 安徽天一重工股份有限公司 | Automatic-regulating lubricating device of coupler |
| CN203239802U (en) * | 2013-05-27 | 2013-10-16 | 浙江鑫隆机械制造有限公司 | Backstop structure |
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| CN103883866A (en) | 2014-06-25 |
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