Internally cooled mandrel

Abstract

The present invention provides an internally cooled mandrel, which comprises a mandrel body and a connecting seat, wherein a water inlet chamber and a water return chamber are provided in the mandrel body; a circulating water pipe assembly is provided in the water inlet chamber and the water return chamber; the water inlet chamber and the water return chamber are separated by a spacer ring; the connecting seat is installed on the outer wall of the mandrel body; a water inlet, a water inlet trough, a water outlet and a water outlet trough are provided on the connecting seat; the water inlet is connected to the water inlet chamber through the water inlet trough; the water outlet is connected to the water return chamber through the water outlet trough. The present invention can realize infinite water circulation through a simple structure, and can bring out a large amount of heat energy generated by the production of the equipment, thereby achieving the purpose of circulating cooling of the equipment; ensuring that the equipment can work normally for a long time.

Description

Technical Field

[0001] The invention relates to the technical field of mandrels, and in particular to an internally cooled mandrel. Background Art

[0002] The internally cooled mandrel is a cooling device for the mandrel, which is usually used in mechanical equipment that requires high precision and high stability. It is also suitable for mandrel parts that are prone to heat accumulation during high-speed operation or long-term work. It can solve the problem of deformation of the mandrel due to heat during operation.

[0003] The existing design of the internal cooling mandrel involves multiple components, such as a rotating sleeve, a sealing ring, etc., which have high requirements for processing and assembly, increasing the manufacturing difficulty and maintenance cost. In addition, due to the complex structure, once a failure occurs, it is very difficult to repair. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an internal cooling mandrel, which is specifically achieved through the following technical solutions:

[0005] An internally cooled mandrel comprises a mandrel body and a connecting seat, wherein:

[0006] A water inlet chamber and a water return chamber are provided in the core shaft body; a circulating water pipe assembly is provided in the water inlet chamber and the water return chamber; the water inlet chamber and the water return chamber are separated by a spacer ring; the connecting seat is installed on the outer wall of the core shaft body; a water inlet, a water inlet trough, a water outlet and a water outlet trough are provided on the connecting seat; the water inlet is connected to the water inlet chamber through the water inlet trough; the water outlet is connected to the water return chamber through the water outlet trough.

[0007] Optionally or preferably, sealing seats are provided at both ends of the core shaft body; and a plug is provided between the sealing seat and the circulating water pipe assembly.

[0008] Optionally or preferably, the core shaft body includes a sealing section and an open section; the sealing section and the open section are integrally connected to form the core shaft body; the side wall of the sealing section is not connected to the outside world; the outer wall of the open section is provided with a plurality of hollow structures, which can be connected to the outside world; the connecting seat is installed on the sealing section of the core shaft body.

[0009] Optionally or preferably, a plurality of through holes are provided on the circulating water pipe assembly; the interior of the circulating water pipe assembly is connected to the water inlet cavity through the through holes.

[0010] Optionally or preferably, the number of the core shaft bodies is two; one connecting seat is simultaneously wrapped around the outside of the two core shaft bodies; the water inlet groove in the connecting seat is staggered and connected to the water inlet chambers of the two core shaft bodies; the water outlet groove in the connecting seat is staggered and connected to the return water chambers of the two core shaft bodies.

[0011] Optionally or preferably, the sealing seat is fixed to the core shaft body by screw connection, or is installed on the core shaft body by threaded connection.

[0012] Based on the above technical solution, the following technical effects can be produced:

[0013] The invention provides an internally cooled core shaft, which can realize infinite water circulation through a simple structure, and can take out a large amount of heat energy generated by the equipment during production, thereby achieving the purpose of circulating cooling for the equipment, and ensuring that the equipment can work normally for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0015] Figure 1 It is a front view of an embodiment of the present invention;

[0016] Figure 2 It is a cross-sectional view taken along the line AA of an embodiment of the present invention;

[0017] Figure 3 It is a BB cross-sectional view of an embodiment of the present invention;

[0018] Figure 4 It is a CC cross-sectional view of an embodiment of the present invention;

[0019] In the figure: 1- mandrel body, 2- water inlet chamber, 3- water return chamber, 4- circulating water pipe assembly, 5- spacer ring, 6- connecting seat, 7- water inlet, 8- water outlet, 9- water inlet tank, 10- water outlet tank, 11- sealing seat, 12- plug,

[0020] 101 - sealed section, 102 - open section, 103 - hollow structure, 401 - through hole. DETAILED DESCRIPTION

[0021] It should be understood that the specific embodiments described herein are only used to explain the present invention, and are not used to limit the present invention.

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] Embodiment 1:

[0024] like Figure 1-Figure 4 As shown:

[0025] This embodiment provides an internal cooling mandrel, comprising a mandrel body 1 and a connecting seat 6, wherein:

[0026] A water inlet chamber 2 and a water return chamber 3 are provided in the core shaft body 1; a circulating water pipe assembly 4 is provided in the water inlet chamber 2 and the water return chamber 3; the water inlet chamber 2 and the water return chamber 3 are separated by a spacer ring 5; the connecting seat 6 is installed on the outer wall of the core shaft body 1; a water inlet 7, a water inlet groove 9, a water outlet 8 and a water outlet groove 10 are provided on the connecting seat 6; the water inlet 8 is connected to the water inlet chamber 2 through the water inlet groove 9; the water outlet is connected to the water return chamber through the water outlet groove.

[0027] In this embodiment, sealing seats 11 are provided at both ends of the core shaft body 1 ; and a plug 12 is provided between the sealing seat 11 and the circulating water pipe assembly 4 .

[0028] In this embodiment, the core shaft body 1 includes a sealing section 101 and an open section 102; the sealing section 101 and the open section 102 are connected through an integrated connection to form the core shaft body 1; the side wall of the sealing section 101 is not connected to the outside world; the outer wall of the open section 102 is provided with a plurality of hollow structures 103, which can be connected to the outside world; the connecting seat 6 is installed on the sealing section 101 of the core shaft body 1.

[0029] In this embodiment, a plurality of through holes 401 are formed on the circulating water pipe assembly 4 ; the interior of the circulating water pipe assembly 4 is connected to the water inlet chamber 2 through the through holes 401 .

[0030] In this embodiment, the number of the core shaft bodies 1 is two; one connecting seat 6 is simultaneously wrapped around the outside of the two core shaft bodies 1; the water inlet groove 10 in the connecting seat 6 is staggered and connected to the water inlet chambers 2 of the two core shaft bodies 1; the water outlet groove 10 in the connecting seat 6 is staggered and connected to the return water chambers 3 of the two core shaft bodies 1.

[0031] In this embodiment, the sealing seat 11 is fixed to the core shaft body 1 by screw connection, or is installed on the core shaft body 1 by threaded connection.

[0032] The working process and principle of this embodiment are as follows:

[0033] The low-temperature cooling water from the external water circulation system enters through the water inlet 7, and then enters the circulating water pipe assembly 4 through the water inlet chamber 2; the cooling water flows along the circulating water pipe assembly 4, and enters the return water chamber 3 from the other end of the circulating water pipe assembly 4; because the return water chamber 3 is connected to the water outlet 8 through the water outlet trough 10, the cooling water that has taken away the heat flows out through the water outlet 8 and re-enters the external water circulation system, thereby realizing an infinite water loop. During the circulation process, the cooling water takes away a large amount of heat energy generated by the production to the equipment, thereby achieving the purpose of circulating cooling for the equipment and ensuring that the equipment can work normally for a long time.

[0034] The structures, functions and connection forms disclosed in this article can be realized in other ways. For example, the embodiments described above are only exemplary, for example, the sealing seat and the connecting seat can be installed in other ways, for example, multiple components can be combined or integrated into another component; in addition, each functional component in each embodiment of this article can be integrated into one functional component, or each functional component can exist physically separately, or two or more functional components can be integrated into one functional component.

[0035] The above is only a preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art shall not deviate from the spirit and scope of the present invention, and shall be within the scope of protection of the claims attached to the present invention.

Claims

1. An internally cooled mandrel, characterized in that: It includes a spindle body and a connecting seat, wherein: A water inlet chamber and a water return chamber are provided in the core shaft body; a circulating water pipe assembly is provided in the water inlet chamber and the water return chamber; the water inlet chamber and the water return chamber are separated by a spacer ring; the connecting seat is installed on the outer wall of the core shaft body; a water inlet, a water inlet trough, a water outlet and a water outlet trough are provided on the connecting seat; the water inlet is connected to the water inlet chamber through the water inlet trough; the water outlet is connected to the water return chamber through the water outlet trough.

2. The internally cooled mandrel according to claim 1, characterized in that: Sealing seats are provided at both ends of the core shaft body; and a plug is provided between the sealing seat and the circulating water pipe assembly.

3. The internally cooled mandrel according to claim 1, characterized in that: The core shaft body includes a sealing section and an open section; the sealing section and the open section are connected in an integrated manner to form the core shaft body; the side wall of the sealing section is not connected to the outside world; the outer wall of the open section is provided with a plurality of hollow structures and can be connected to the outside world; the connecting seat is installed on the sealing section of the core shaft body.

4. The internally cooled mandrel according to claim 1, characterized in that: The circulating water pipe assembly is provided with a plurality of through holes; the interior of the circulating water pipe assembly is connected with the water inlet cavity through the through holes.

5. The internally cooled mandrel according to claim 1, characterized in that: There are two core shaft bodies; one connecting seat is simultaneously wrapped around the outside of the two core shaft bodies; the water inlet groove in the connecting seat is staggered and connected to the water inlet chambers of the two core shaft bodies; the water outlet groove in the connecting seat is staggered and connected to the return water chambers of the two core shaft bodies.

6. The internally cooled mandrel according to claim 2, characterized in that: The sealing seat is fixed on the core shaft body by screw connection, or is installed on the core shaft body by threaded internal connection.

Images