CN209425090U - Axis system coolant jacket and axis system - Google Patents

Axis system coolant jacket and axis system Download PDF

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Publication number
CN209425090U
CN209425090U CN201920207193.6U CN201920207193U CN209425090U CN 209425090 U CN209425090 U CN 209425090U CN 201920207193 U CN201920207193 U CN 201920207193U CN 209425090 U CN209425090 U CN 209425090U
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China
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flow channel
coolant
axis system
coolant flow
coolant jacket
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CN201920207193.6U
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Chinese (zh)
Inventor
邓小雷
李瑞琦
胡佳妮
曹晓梅
张智钦
周涛
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Quzhou University
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Quzhou University
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Abstract

The utility model relates to axis system fields, a kind of axis system coolant jacket and axis system are provided, the axis system coolant jacket includes body, water inlet flow channel, outlet passage and multiple groups coolant flow channel group are equipped in the body, coolant flow channel group described in multiple groups is spaced setting in the body, the both ends of the coolant flow channel group are connect with the water inlet flow channel and the outlet passage respectively, the coolant flow channel group includes a plurality of coolant flow channel, and the coolant flow channel is connected to the water inlet flow channel and the outlet passage.The axis system coolant jacket of the utility model simultaneously can cool down main shaft by a plurality of coolant flow channel in multiple groups coolant flow channel group, radiating efficiency is high, by the way that water inlet flow channel is arranged, coolant liquid is inputted to multiple groups coolant flow channel group simultaneously, reduce the length of flow of coolant liquid, so that the flowing pressure loss of coolant liquid reduces.

Description

Axis system coolant jacket and axis system
Technical field
The utility model relates to cooling equipment technical field, in particular to a kind of axis system coolant jacket and axis system.
Background technique
In the factor for influencing machine finish, Thermal Error caused by lathe external environment and internal heat resource is its maximum Error source, the 40%~70% of the total foozle of Zhan.Axis system is the core component of numerically-controlled machine tool, is to restrict numerically-controlled machine tool essence Spend the main factor improved.
Main shaft can generate amount of heat when running at high speed, and cause the thermal deformation of main shaft, currently, commonly using to axis system The type of cooling is the coolant jacket that arrangement has spiral flow channel in its sleeve, to take away the heat of internal system generation.
Existing cooling structure radiating efficiency is low, and the flowing pressure loss of coolant liquid is big, and biggish pump power is needed Realize heat dissipation effect.
Utility model content
In view of this, the utility model is directed to a kind of axis system coolant jacket, which can lead to It crosses and multiple coolant flow channel groups is set on body, improve cooling efficiency using a plurality of coolant flow channel in coolant flow channel group, subtract The loss of fluid pressure drop is cooled down less.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of axis system coolant jacket, the axis system coolant jacket includes body, in the body be equipped with water inlet flow channel, Outlet passage and multiple groups coolant flow channel group, coolant flow channel group described in multiple groups are spaced setting, the coolant flow channel in the body The both ends of group are connect with the water inlet flow channel and the outlet passage respectively, and the coolant flow channel group includes a plurality of coolant flow channel, The coolant flow channel is connected to the water inlet flow channel and the outlet passage.
Preferably, a plurality of coolant flow channel in the coolant flow channel group includes center flow channels and sets around the center flow channels The periphery runner set.
Preferably, the periphery runner is arranged in a ring as the center of circle using the center flow channels.
Preferably, the periphery runner is formed using the center flow channels as multiple concentric circles of center of circle annular array.
Preferably, the cross section of the coolant flow channel includes round and polygon.
Preferably, the cross section of the coolant flow channel is regular hexagon.
Preferably, it is arranged in parallel between multiple coolant flow channel groups.
Preferably, the coolant flow channel group in parallel the body end face setting.
Preferably, the water inlet flow channel and the outlet passage are arranged along the set body axis direction, and the feed water flow Inlet and outlet are respectively equipped on road and the outlet passage.
The utility model also provides a kind of axis system, including mandrel, fore bearing, rear bearing, collar bush and coolant jacket, The coolant jacket is set on the collar bush, and the coolant jacket is axis system coolant jacket described in the utility model.
Compared with the existing technology, the axis system coolant jacket of the utility model can be by more in multiple groups coolant flow channel group Coolant flow channel simultaneously cools down main shaft, and radiating efficiency is high, by the way that water inlet flow channel is arranged, while to multiple groups coolant flow channel group Coolant liquid is inputted, reduces the length of flow of coolant liquid, so that the flowing pressure loss of coolant liquid reduces.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
The attached drawing for constituting a part of the utility model is used to provide a further understanding of the present invention, this is practical new The exemplary embodiment and its explanation of type are not constituteed improper limits to the present invention for explaining the utility model. In the accompanying drawings:
Fig. 1 is a kind of structural schematic diagram of embodiment of the axis system coolant jacket of the utility model；
Fig. 2 is the cross-sectional view of axis system coolant jacket in Fig. 1；
Fig. 3 is the partial enlargement diagram of coolant flow channel group in Fig. 2；
Fig. 4 is a kind of structural schematic diagram of embodiment of the axis system of the utility model；
Fig. 5 is the structural schematic diagram of the coolant jacket with spiral flow channel radiator structure in the prior art.
Description of symbols:
1 water inlet flow channel, 2 outlet passage
3 coolant flow channel group, 4 mandrel
5 collar bush, 6 coolant jacket
11 water inlet, 21 water outlet
31 coolant flow channel, 311 center flow channels
312 periphery runners
Specific embodiment
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein Described specific embodiment is only used for describing and explaining the present invention, and is not intended to limit the utility model.
In the present invention, in the absence of explanation to the contrary, the noun of locality used such as " upper and lower, left and right " is usual Refer to reference to upper and lower, left and right shown in the drawings；" inside and outside " refers to the inside and outside of the profile relative to each component itself.Below will The utility model is described in detail with reference to attached drawing and in conjunction with embodiment.
One aspect according to the present utility model provides a kind of axis system coolant jacket, as depicted in figs. 1 and 2, the master Axle system coolant jacket includes body, and water inlet flow channel 1, outlet passage 2 and multiple groups coolant flow channel group 3, multiple groups are equipped in the body The coolant flow channel group 3 is spaced setting in the body, the both ends of the coolant flow channel group 3 respectively with the water inlet flow channel 1 It is connected with the outlet passage 2, the coolant flow channel group 3 includes a plurality of coolant flow channel 31, and the coolant flow channel 31 is connected to described Water inlet flow channel 1 and the outlet passage 2.
The axis system coolant jacket of the utility model is right simultaneously by a plurality of coolant flow channel 31 in multiple groups coolant flow channel group 3 Main shaft is cooled down, and radiating efficiency is high, is inputted coolant liquid by the way that water inlet flow channel 1 is arranged, while to multiple groups coolant flow channel group 3, is subtracted The length of flow of coolant liquid is lacked, so that the flowing pressure loss of coolant liquid reduces.
A kind of embodiment according to the present utility model, in order to improve cooling effect, as shown in figure 3, the coolant flow channel A plurality of coolant flow channel 31 in group 3 includes center flow channels 311 and the periphery runner 312 around the center flow channels 311 setting.No Heat can be mutually transmitted between the coolant flow channel 31 of position, so that cooling effect is more uniform.
Among the above, in order to keep the cooling effect of coolant flow channel group 3 more uniform, the periphery runner 312 is with the center Runner 311 is that the center of circle is arranged in a ring.In the coolant flow channel group 3 of different location, different can be set on periphery runner 312 Several coolant flow channel 31, so that body reaches identical cooling effect.
Wherein, in order to make coolant flow channel group 3 obtain bigger film-cooled heat, the periphery runner 312 is formed in described Heart runner 311 is multiple concentric circles of center of circle annular array.
A kind of embodiment according to the present utility model, the cross section of the coolant flow channel 31 include round and polygon. When one timing of perimeter of section, uses cross-sectional area that can accommodate more coolant liquids for circular coolant flow channel 31, improve cooling Effect；It uses cross-sectional area that can make closely to arrange between coolant flow channel 31 for the coolant flow channel 31 of polygon, improves heat transmitting Efficiency, to improve cooling effect.
Among the above, in order to reduce the area between coolant flow channel 31, the cross section of the coolant flow channel 31 is regular hexagon. Honeycomb is the optimum topology structure for covering two-dimensional surface.Preferably, the coolant flow channel group 3 is the bionical runner of honeycomb.That is, The coolant flow channel 31 of regular hexagon is arranged according to the pattern of honeycomb structure.
In order to reduce the temperature difference of body, it is arranged in parallel between multiple coolant flow channel groups 3, in order to coolant flow channel group pair The different location of body is cooling simultaneously.Preferably, the different coolant flow channel group 3 of spacing is arranged in the different location on body, from And achieve the purpose that reduce the body temperature difference.
Preferably, the end face setting of the parallel body of the coolant flow channel group 3.It is such to be arranged so that coolant flow channel 31 Length it is most short, to reduce the pressure loss of the coolant liquid in coolant flow channel 31.
For the ease of providing coolant liquid, the water inlet flow channel 1 and the outlet passage 2 simultaneously for multiple coolant flow channel groups 3 It is arranged along the set body axis direction, and is respectively equipped with water inlet 11 and water outlet on the water inlet flow channel 1 and the outlet passage 2 Mouth 21.Preferably, water inlet 11 and water outlet 21 are separately positioned on the middle part of water inlet flow channel 1 and outlet passage 2, such setting Be conducive to reduce the pressure difference between different coolant flow channel groups 3.
Another aspect according to the present utility model, as shown in figure 4, provide a kind of axis system, including mandrel 4, fore bearing, Rear bearing, collar bush 5 and coolant jacket 6, the coolant jacket 6 are set on the collar bush 5, and the coolant jacket 6 is that this is practical The novel axis system coolant jacket.
When using the axis system coolant jacket, after coolant liquid is from water inlet 11 into water inlet flow channel 1, pass through coolant flow channel Coolant flow channel 31 in group 3 enters outlet passage 2, then flows out from water outlet 21, so that the heat of axis system is taken away, To complete the cooling to axis system.
The spiral shell as shown in Figure 5 by coolant flow channel group coolant jacket provided by the embodiment of the utility model and in the prior art below Rotation shape runner coolant jacket is compared.
For convenient for comparative analysis, to coolant flow channel group coolant jacket and spiral flow channel coolant jacket all take identical coolant liquid into Heat flow density value on mouth of a river flow speed value, coolant liquid physical property and heating surface, and assume that heat source uniformly divides on cooling system structure Cloth.Two kinds of coolant jacket basis materials are set as steel.Applying fixed heat flow density on coolant jacket cylinder heating surface is 25000W/ mm2, water inlet cooling liquid speed is 1m/s, and water flow initial temperature is 20 DEG C, and coolant liquid is water.Water outlet is by atmosphere flanging Boundary's condition is as reference pressure.According to the heat transfer numerical value computational theory of fluid structurecoupling, Coupled Heat Transfer such as formula: In formula: ksFor solid heat transfer coefficient, T is temperature field, ρsFor density of solid, cpFor specific heat of solid and heat, t is the time.Flowing and diabatic process are by three conservation of mass, the conservation of momentum and the conservation of energy physical bases This law dominates, and the governing equation of numerical model is as follows: mass-conservation equation: according to fluid mass in micro unit in the unit time Increment, which is equal in same time interval, flows into net quality therein, and it is as follows can to export energy conservation equation:In formula: ρ is fluid density, and u, v, w are fluid velocity vectors U in three reference axis Component, in formula after three be mass flow density divergence, can be indicated with divergence symbolMomentum is kept Permanent equation: it is equal to according to the increment rate of fluid momentum in micro unit and acts on the sum of various power on micro unit, and introduce Newtown Shearing stress formula and Stokes formula, then the momentum conservation equation on x, y, z direction is as follows: In formula: η is the dynamic viscosity of fluid, and p is the pressure of pipeline water；Energy conservation equation: root It is equal to net heat flow and surface force into micro unit according to the increment rate of thermodynamic energy in micro unit, body force does work to micro unit The sum of, and thermally conductive Fourier law is introduced, have for incompressible fluid: In formula: c is The mass specific heat of fluid, TiComponent for temperature T in the direction i (i=x, y, z), k are the thermal conductivity of fluid, ShFor the interior heat of fluid Source.Φ is dissipative function (since viscous effect makes mechanical energy be converted to the part of thermal energy), its calculation formula is Introduce source item ST=Sh+ Φ existsUsing k- ε equation as governing equation, above-mentioned heat transfer can be carried out It is solved with the variable of heat exchange equation, governing equation is as follows: Formula In: Φ represents u, v, w, T.Dissipative shock wave ε equation can be indicated with following forms:(fluid is rapid for k equation Stream pulsation equation) are as follows: In formula: I is component u, v, w of U；J is the coordinate of x, y, z；ηtFor turbulent kinetic coefficient of viscosity.
Obtained result is as follows:
Water inlet pressure Water outlet pressure Maximum temperature Minimum temperature
Spiral flow channel coolant jacket 10610Pa 1353Pa 51.0℃ 27.8℃
Coolant flow channel group coolant jacket 1962.6Pa 1034Pa 35.3℃ 25.3℃
Under same water inlet flow condition, the maximum pressure of spiral flow channel coolant jacket is located at water inlet about 10610Pa, water outlet pressure are about 1353Pa；The maximum pressure of coolant flow channel group coolant jacket is located at water inlet 11 about 1962.6Pa, 21 pressure of water outlet is about 1034Pa.From the point of view of the pressure change of water inlet 11 and water outlet 21, coolant flow channel group The pressure drop of coolant jacket is more much smaller than spiral flow channel coolant jacket, it means that energy consumed by coolant flow channel group coolant jacket It is smaller than spiral flow channel coolant jacket.
The maximum temperature of spiral flow channel coolant jacket is about 51.0 DEG C, and minimum about 27.8 DEG C；Coolant flow channel group coolant jacket Maximum temperature be 35.3 DEG C, minimum temperature be 25.3 DEG C.It can be seen that the heat dissipation effect of coolant flow channel group coolant jacket is more managed Think, moreover, the Temperature Distribution of coolant flow channel group coolant jacket is more evenly.
The foregoing is merely the better embodiments of the utility model, are not intended to limit the utility model, it is all Within the spirit and principles of the utility model, it is practical new to should be included in this for any modification, equivalent replacement, improvement and so on Within the protection scope of type.

Claims (10)

1. a kind of axis system coolant jacket, which is characterized in that the axis system coolant jacket includes body, is equipped in the body Water inlet flow channel (1), outlet passage (2) and multiple groups coolant flow channel group (3), coolant flow channel group (3) described in multiple groups is in the body Interval setting, the both ends of the coolant flow channel group (3) are connect with the water inlet flow channel (1) and the outlet passage (2) respectively, institute Stating coolant flow channel group (3) includes a plurality of coolant flow channel (31), and the coolant flow channel (31) is connected to the water inlet flow channel (1) and described Outlet passage (2).
2. axis system coolant jacket according to claim 1, which is characterized in that a plurality of in the coolant flow channel group (3) Coolant flow channel (31) includes center flow channels (311) and the periphery runner (312) around the center flow channels (311) setting.
3. axis system coolant jacket according to claim 2, which is characterized in that the periphery runner (312) is in described Heart runner (311) is that the center of circle is arranged in a ring.
4. axis system coolant jacket according to claim 3, which is characterized in that the periphery runner (312) is formed with institute State multiple concentric circles that center flow channels (311) are center of circle annular array.
5. axis system coolant jacket according to claim 1, which is characterized in that the transversal bread of the coolant flow channel (31) Include round and polygon.
6. axis system coolant jacket according to claim 5, which is characterized in that the cross section of the coolant flow channel (31) is Regular hexagon.
7. axis system coolant jacket according to claim 1, which is characterized in that between multiple coolant flow channel groups (3) It is arranged in parallel.
8. axis system coolant jacket according to claim 1, which is characterized in that the coolant flow channel group (3) is parallel described The end face of body is arranged.
9. axis system coolant jacket according to claim 1, which is characterized in that the water inlet flow channel (1) and the water outlet Runner (2) is arranged along the set body axis direction, and be respectively equipped on the water inlet flow channel (1) and the outlet passage (2) into The mouth of a river (11) and water outlet (21).
10. a kind of axis system, including mandrel (4), fore bearing, rear bearing, collar bush (5) and coolant jacket (6), the cooling Set (6) is set on the collar bush (5), which is characterized in that the coolant jacket (6) is any one of claims 1 to 9 right It is required that the axis system coolant jacket.
CN201920207193.6U 2019-02-18 2019-02-18 Axis system coolant jacket and axis system Active CN209425090U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109590804A (en) * 2019-02-18 2019-04-09 衢州学院 Axis system coolant jacket and axis system
CN110936225A (en) * 2019-11-23 2020-03-31 连云港职业技术学院 Precise numerical control machine tool for die machining
CN114922880A (en) * 2022-05-31 2022-08-19 燕山大学 Bionic runner design method for additive manufacturing cylinder body and hydraulic driving device thereof

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109590804A (en) * 2019-02-18 2019-04-09 衢州学院 Axis system coolant jacket and axis system
CN110936225A (en) * 2019-11-23 2020-03-31 连云港职业技术学院 Precise numerical control machine tool for die machining
CN110936225B (en) * 2019-11-23 2021-08-10 连云港职业技术学院 Precise numerical control machine tool for die machining
CN114922880A (en) * 2022-05-31 2022-08-19 燕山大学 Bionic runner design method for additive manufacturing cylinder body and hydraulic driving device thereof

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