CN110052890A - A kind of two-way double helix cooling jacket - Google Patents

Abstract

The invention discloses a bidirectional double-spiral cooling water jacket, comprising a water jacket main body, a water jacket shell and a water jacket end cover. The water jacket main body includes two spiral water channels, and the two spiral water channels are spirally distributed on the water jacket main body. In space, it is a double helix structure, the water jacket shell and the water jacket main body cooperate, and the water jacket end cover is used to fix the water jacket shell and the water jacket main body; The cooling water is distributed on the main body of the water jacket, and the cooling water flows in the spiral direction in the spiral water channel, so that the temperature of the cooling water does not change much in the circumferential direction, and solves the problem of uneven heat dissipation of the electric spindle in the circumferential direction; at the same time, two spirals are used. The water channels work independently, and the two spiral water channels make up each other in the axial direction, so that the cooling effect of the cooling water jacket in the axial direction is uniform, and the problem of uneven heat dissipation of the electric spindle in the axial direction is solved.

Description

A bidirectional double helix cooling water jacket

technical field

The invention relates to a cooling water jacket for an electric spindle, in particular to a bidirectional double-spiral cooling water jacket for an electric spindle.

Background technique

As the core component of the high-speed machining machine tool, the performance of the electric spindle directly affects the performance of the high-speed machining machine tool. Due to the high-speed operation of the electro-spindle, a large amount of heat will be generated inside the electro-spindle, which will cause a large thermal deformation of the electro-spindle and affect the machining accuracy of the machine tool.

As the main cooling device of the electric spindle, the cooling water jacket will take away most of the heat generated by the electric spindle, and the thermal deformation of the electric spindle during operation accounts for about 80% of the total deformation of the electric spindle, so the cooling performance of the cooling water jacket It directly affects the working performance of the electric spindle.

The traditional cooling water jacket uses a single cooling water channel for circulating cooling, that is, the cooling water is injected from the water inlet, flows through the cooling water channel and then flows out from the water outlet to take away the heat. Due to the single cooling water channel, when the cooling water flows through the water channel, the temperature of the cooling water will gradually increase, so that the cooling effect will gradually deteriorate. When the cooling water jacket is cooled, the cooling effect at the water inlet is the best. The cooling effect is the worst, and the cooling effect is not uniform in the axial direction and the circumferential direction of the electro-spindle.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an electric spindle cooling water jacket with uniform cooling effect in the axial direction and the circumferential direction, so as to solve the above problems existing in the prior art.

To achieve the above object, the present invention proposes the following technical solutions:

The invention discloses a bidirectional double-spiral cooling water jacket, comprising a water jacket main body, a water jacket shell and a water jacket end cover. The water jacket main body includes two water inlets and two water outlets, a double-spiral water channel and six flange Circumferentially symmetrically arranged fastening screw holes; the water jacket end cover includes a water inlet pipe interface, a water outlet pipe interface and 6 tightening screw holes symmetrically arranged along the circumference; the water jacket shell passes through the two water The sleeve end cover is fixed on the main body of the water jacket to form a complete cooling water jacket.

The water jacket body includes two water inlets arranged at both ends of the water jacket body to receive cooling water injected from the water jacket end cover, and two water outlets are also arranged at both ends of the water jacket body to send cooling water to the water jacket body. Back to the water jacket end cap and further sent back to the industrial water chiller.

The water jacket main body includes two spiral water channels, which are spirally covered on the water jacket main body. The two spiral water channels are independent of each other and have a double-spiral structure in space. The two spiral water channels receive different water inlets. The cooling water in the two spiral water channels flows in opposite directions, and the opposite ones flow through the spiral water channels and then flow out from the water outlet to complete a cooling.

The water inlet pipe interface of the water jacket end cover is connected to the water inlet of the water jacket main body, and the cooling water of the industrial chiller can be injected into the spiral water channel for cooling, and the water outlet pipe interface is connected to the water outlet of the water jacket main body, which will flow through the spiral The cooling water of the water channel is sent back to the industrial water chiller.

The present invention obtains the following technical achievements relative to the prior art:

1. The arrangement of the spiral water channel is proposed. The spiral distribution of the water channel is on the main body of the water jacket, and the cooling water flows in the spiral direction in the spiral water channel, so that the temperature of the cooling water does not change much in the circumferential direction, so that the cooling water is in the circumferential direction. The cooling effect is uniform, solving the problem of uneven heat dissipation of the motorized spindle in the circumferential direction;

2. Two spiral water channels are used to work independently, with a double-spiral structure in space. At the same time, cooling water is injected into the two spiral water jackets from the two water inlets to cool the electric spindle; although the water inlet and outlet of each spiral water channel The cooling effect of the water inlet is inconsistent (the cooling effect of the water inlet is good, and the cooling effect of the water outlet is poor), but the cooling water flows in the opposite directions in the two spiral water channels, and the orientation of the water inlet is different. The cooling effect in the direction is uniform, and the problem of uneven heat dissipation of the motorized spindle in the axial direction is solved.

Description of drawings

The organization is further described below in conjunction with the accompanying drawings:

Figure 1: Schematic diagram of the overall structure of the main body of the water jacket;

Accompanying drawing 2: schematic diagram of end face structure of water jacket main body b;

Figure 3: Schematic diagram of the water jacket shell structure;

Figure 4: Schematic diagram of the structure of the water jacket end cap.

In the picture: 1. The first spiral water channel, 2. The second spiral water channel, 3. Fastening screw holes, 4. Water jacket body, 5. Water jacket shell, 6. Water inlet pipe interface, 7. Water outlet pipe interface , 8. Fastening screw holes, 9. Water jacket end cover, 11, a end face, 12, b end face, 11-1, a end face water inlet, 11-2, a end face water outlet, 12-1, b end face inlet Nozzle, 12-2, b end face water outlet.

Detailed ways

The specific technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention.

The purpose of the present invention is to provide an electric spindle cooling water jacket with uniform cooling effect in the axial direction and the circumferential direction to solve the technical problems existing in the prior art, as shown in Figure 1, Figure 2, Figure 3 and the accompanying drawings. As shown in FIG. 4, a bidirectional double-spiral cooling water jacket provided by the present invention includes a water jacket main body (4), a water jacket shell (5) and a water jacket end cover (9). The water jacket main body (4) includes a End face water inlet (11-1) and b end face water inlet (12-1), a end face water outlet (11-2) and b end face water outlet (12-2), the first spiral water channel (1) and the second A spiral water channel (2) and six fastening screw holes (3) symmetrically arranged along the circumference; the water jacket end cover (9) includes a water inlet pipe interface (6), a water outlet pipe interface (7) and six circumferential Symmetrically arranged fastening screw holes (8); the two water jacket end caps (9) are bolted through the fastening screw holes (8) to fix the water jacket shell (5) and the water jacket main body (4) on the water jacket. Together they form a complete cooling water jacket.

The water jacket main body (4) includes a water inlet (11-1) on the a-end surface, and the b-end water inlet (12-1) is respectively arranged on the a-end surface (11) and the b-end surface (12) of the water jacket main body (4). To receive the cooling water injected from the water jacket end cover (9), the a-end face water outlet (11-2) and the b-end face water outlet (12-2) are also respectively arranged on the a-end face (11) of the water jacket main body (4). On the end face (12) of and b, the cooling water is sent back to the industrial water cooler through the water jacket end cover (9).

The water jacket main body (4) includes a first spiral water channel (1) and a second spiral water channel (2), and the first spiral water channel (1) and the second spiral water channel (2) are spirally covered on the water jacket main body. (4), the first spiral water channel (1) and the second spiral water channel (2) are independent of each other and have a double helix structure in space. The first spiral water channel (1) receives the water inlet (11- 1) The injected cooling water, the second spiral water channel (2) receives the cooling water injected from the water inlet (12-1) of the b end face, and the cooling water flows between the first spiral water channel (1) and the second spiral water channel (2). ) to cool the electric spindle, then the cooling water in the first spiral water channel (1) flows out from the water outlet (12-2) of the b end, and the cooling water in the second spiral water channel (2) flows from a) The end face water outlet (11-2) flows out, and is sent back to the industrial water cooler through the water jacket end cover (9) to complete the primary cooling.

The water inlet pipe interface (6) of the water jacket end cover (9) is connected to the water inlet (11-1) or the water inlet (12-1) of the end face b of the main body (4) of the water jacket. It is injected into the first spiral water channel (1) or the second spiral water channel (2) for cooling; the water outlet pipe interface (7) is connected to the water outlet (11-2) or b end face of the water jacket main body (4). The water outlet (12-2) sends the cooling water back to the industrial water cooler.

The working process of the present invention is as follows:

When working, firstly connect the water inlet pipe and water outlet pipe of the industrial water cooler to the water inlet pipe interface (6) and the water outlet pipe interface (7) of the water jacket end cover (9), then start the industrial chiller and pass the cooling water through the water jacket. The end cover (9) is injected into the water jacket main body (4), and the cooling water enters the first spiral water channel (1) and the first spiral water channel (1) from the water inlet (11-1) of the a end face and the water inlet (12-1) of the b end face respectively. Two spiral water channels (2), the cooling water injected from the water inlet (11-1) on the a-end surface flows through the first spiral water channel (1), and is cooled along the direction from the a-end surface (11) to the b-end surface (12), Finally, it flows back to the industrial water chiller from the water outlet (12-2) on the b end face, and the cooling water injected from the water inlet (12-1) on the b end face flows through the second spiral water channel (2), along the b end face (12) to a Cooling is carried out in the direction of the end face (11), and finally flows back to the industrial water cooler from the water outlet (11-2) of the a end face to complete a cooling cycle. It is supplied at the same time as the water inlet (12-1) of the end face of b, and the cooling water spirals forward in the first spiral water channel (1) and the second spiral water channel (2), so that the temperature of the cooling water does not change much in the circumferential direction, The problem of uneven heat dissipation of the electric spindle in the circumferential direction is solved, and the first spiral water channel (1) and the second spiral water channel (2) compensate each other in the axial direction, so that the cooling effect of the cooling water jacket in the axial direction is uniform, Solve the problem of uneven heat dissipation of the motorized spindle in the axial direction.

Claims (2)

1. A bidirectional double-spiral cooling water jacket, comprising a water jacket main body, a water jacket shell and a water jacket end cover, the water jacket main body and the water jacket shell cooperate to form a bidirectional double-spiral cooling water channel, and the The cooling water flows in opposite directions, so that the cooling effect of the cooling water jacket in the circumferential direction and the axial direction is uniform and good, and the water jacket end cover is used to fix the matched water jacket shell and the water jacket main body. 2. The water jacket main body according to claim 1 is characterized in that the water jacket main body comprises two double-spiral water channels, two water inlets are respectively arranged at both ends of the water jacket main body, and two water outlets are respectively arranged on the water jacket main body. At both ends, the two cooling water channels have a double-spiral structure in space. The cooling water flows into the spiral water channel from the two water inlets at the same time. The cooling water in the two spiral water channels flows in the opposite direction and flows in the spiral direction, so the cooling water in the circumferential direction The temperature changes little, and the cooling water flows in opposite directions in the two spiral water channels in the axial direction, making up for each other’s shortcomings (good cooling effect at the water inlet, poor cooling effect at the water outlet), so as to solve the uneven heat dissipation of the electric spindle in the axial and circumferential directions question.