Multifunctional flushing heat dissipation on-off device
By designing a multifunctional flushing and heat dissipation on-off device in the hydraulic system and using an adjusting screw to adjust the oil circuit on-off, the problem of difficult heat dissipation management of bearings under different working conditions is solved, and a low-cost and efficient heat dissipation effect is achieved.
Patent Information
- Application Number
- CN202423024635.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-09-19
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In existing hydraulic systems, the heat dissipation methods of the plunger pump/motor bearings under different operating conditions are costly and difficult to manage. In particular, the external oil source has poor cooling effect under high speed and high pressure conditions, and the internal circulating oil cooling is insufficient at low speed and low pressure.
A multifunctional flushing and heat dissipation on-off device is designed. By opening a threaded hole and setting an adjusting screw on the shell, the on-off of the adjustable oil circuit can be adjusted according to needs to achieve switching between external flushing and internal circulation to meet the heat dissipation requirements of different working conditions.
It achieves low-cost and easy-to-manage heat dissipation effects under different working conditions, avoids the problems of complex structure and large space occupation, and reduces the cost of equipment use.
Smart Images
Figure CN223359381U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of hydraulic pressure, in particular to a multifunctional flushing, heat dissipation and on-off device. Background Art
[0002] The plunger pump / motor is an important component of the hydraulic system. With the technological iteration of the plunger pump / motor, the service life of the bearing restricts the increase in the rated speed. This is especially true for hydraulic pumps / motors in the aerospace field. The bearings not only withstand ultra-high speeds, but also withstand the spring preload transmitted from the rotor and the oil separator and the radial force generated by the rotor overturning. This makes the bearings a heat source for the plunger pump / motor. If effective cooling measures are not taken for the bearings, the bearings of the plunger pump / motor will burn and fail, greatly reducing the service life of the plunger pump / motor.
[0003] Generally, plunger pumps / motors face different operating conditions. When the plunger pump / motor works at high speed and high pressure, an external oil source is used to flush the bearings to remove heat and achieve a cooling effect. When the plunger pump / motor works at low speed and low pressure, the circulating oil in the housing cavity is sufficient to achieve the bearing cooling effect, and no external flushing oil is needed to cool it.
[0004] Therefore, existing heat dissipation methods present two design structures, which increase costs and make management difficult. Utility Model Content
[0005] The purpose of the utility model is to provide a multifunctional flushing, heat dissipation and on-off device, which has the advantages of relatively low cost and convenient management.
[0006] The technical solution of the utility model is: a multifunctional flushing, heat dissipation and on-off device, comprising a shell, a detachable screw plug, an adjuster screw adjustably arranged on the shell, a flushing oil circuit, an adjustable oil circuit that can be turned on and off, and a flushing chamber; a main shaft and a bearing are arranged in the shell, and a front cover is arranged on the front side of the shell; a threaded hole is opened in the shell near the bearing, the screw plug is detachably installed at the outer end of the threaded hole, and the adjuster screw is arranged in the threaded hole; the inner cavity of the shell is connected with the threaded hole through the adjustable oil circuit, and the threaded hole is connected with the flushing chamber through the flushing oil circuit.
[0007] In the aforementioned multifunctional flushing, heat dissipation and on-off device, the flushing chamber is located between the bearing and the front cover; one end of the flushing oil circuit is connected to the end of the threaded hole, and the other end is connected to the flushing chamber.
[0008] In the aforementioned multifunctional flushing, heat dissipation and on-off device, an oil hole connected to the inner cavity of the shell is provided beside the bottom end of the threaded hole, and the oil hole, threaded hole and adjusting screw constitute an adjustable oil circuit.
[0009] Compared with the prior art, the present invention opens a threaded hole on the housing and sets an adjusting screw in the threaded hole. The adjusting screw is rotated as needed to adjust the on-off of the adjustable oil circuit, thereby realizing the switching between external flushing and internal circulation.
[0010] This application improves on the original structure without changing the original spatial structure, and satisfies the use of two working conditions by adding an adjusting screw;
[0011] This application has a simple structure, requires little modification, occupies little space, is low cost and is easy to manage.
[0012] Therefore, the utility model has the advantages of relatively low cost and convenient management. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a structural diagram of the utility model;
[0014] Figure 2 It is a structural schematic diagram of the adjusting screw of the utility model.
[0015] Markings in the accompanying drawings: 1-housing, 2-screw plug, 3-adjusting screw, 4-bearing, 101-flushing chamber, 102-oil hole, 5-main shaft, 6-front cover. DETAILED DESCRIPTION
[0016] The present invention will be further described below with reference to the accompanying drawings and examples, but they are not intended to limit the present invention.
[0017] Embodiment. A multifunctional flushing and heat dissipation on-off device, such as Figure 1 and 2 As shown, it includes a shell 1, a detachable screw plug 2, an adjuster screw 3 adjustably arranged on the shell 1, a flushing oil circuit, an adjustable oil circuit that can be turned on and off, and a flushing chamber 101; a main shaft 5 and a bearing 4 are arranged in the shell 1, and a front cover 6 is arranged on the front side of the shell 1; a threaded hole is opened in the shell 1 near the bearing 4, the screw plug 2 is detachably installed on the outer end of the threaded hole, and the adjuster screw 3 is arranged in the threaded hole; the inner cavity of the shell 1 is connected with the threaded hole through the adjustable oil circuit, and the threaded hole is connected with the flushing chamber 101 through the flushing oil circuit.
[0018] The flushing chamber 101 is located between the bearing 4 and the front cover 6 ; one end of the flushing oil circuit is connected to the end of the threaded hole, and the other end is connected to the flushing chamber 101 .
[0019] An oil hole 102 connected to the inner cavity of the housing 1 is provided beside the bottom end of the threaded hole. The oil hole 102, the threaded hole and the adjusting screw 3 constitute an adjustable oil circuit.
[0020] Working principle:
[0021] When the present invention is used at a low speed, low pressure or low working environment temperature, the adjusting screw 3 is retracted outwards, and the oil circuit can be adjusted to be connected, so that the hydraulic oil in the inner cavity of the housing 1 and the oil in the flushing cavity 101 form an internal circulation, thereby achieving a cooling and heat dissipation effect;
[0022] When used at high speed, high pressure or high working environment temperature, the adjusting screw 3 is screwed into the bottom end to adjust the oil circuit to be closed, and the external flushing oil only flushes the flushing cavity 101 at the front end of the bearing 4, accelerating the flow of oil and achieving a cooling and heat dissipation effect.
Claims
1. A multifunctional flushing and heat dissipation on-off device, characterized by: The invention comprises a housing (1), a detachably mounted screw plug (2), an adjusting screw (3) adjustably mounted on the housing (1), a flushing oil circuit, an adjustable oil circuit that can be switched on and off, and a flushing chamber (101); a main shaft (5) and a bearing (4) are arranged in the housing (1), and a front cover (6) is arranged on the front side of the housing (1); a threaded hole is provided in the housing (1) near the bearing (4), the screw plug (2) is detachably mounted on the outer end of the threaded hole, and the adjusting screw (3) is arranged in the threaded hole; the inner cavity of the housing (1) is connected to the threaded hole via the adjustable oil circuit, and the threaded hole is connected to the flushing chamber (101) via the flushing oil circuit.
2. A multifunctional flushing, heat dissipation and on-off device according to claim 1, characterized in that: The flushing chamber (101) is located between the bearing (4) and the front cover (6); one end of the flushing oil circuit is connected to the end of the threaded hole, and the other end is connected to the flushing chamber (101).
3. The multifunctional flushing, heat dissipation and on-off device according to claim 1, characterized in that: An oil hole (102) connected to the inner cavity of the housing (1) is provided on one side of the bottom end of the threaded hole. The oil hole (102), the threaded hole and the adjusting screw (3) form an adjustable oil circuit.