Counterweight type hydraulic control system

Abstract

The utility model discloses a counterweight type hydraulic control system which comprises a hydraulic box body, an installation cavity is formed in the position, located on one side of a counterweight cavity, of the inner side of the hydraulic box body, an oil inlet and outlet terminal is installed at the bottom of the inner side of the installation cavity, a hydraulic oil tank is installed at the top end of the oil inlet and outlet terminal, and an inner heat preservation sleeve is connected to the outer side of the hydraulic oil tank in a sleeved mode. A ventilation groove is formed in the outer side of the inner heat preservation sleeve, the outer side of the clamping groove drum is sleeved with an outer sleeve, the ventilation groove and an air conveying groove are staggered, external cold air is prevented from directly invading the hydraulic oil tank, heat generated in the daytime can be stored, the dissipation speed is reduced, and therefore internal hydraulic oil is prevented from being frozen; and cold air can be further reduced from the top through a fixing thin rod and heat preservation cotton, after the temperature is reduced to a certain degree, a resistance heating wire can be turned on for heating, hydraulic oil is prevented from being frozen in the daytime of the second day, normal use of the device is guaranteed, and the engineering efficiency is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of hydraulic control, in particular to a counterweight type hydraulic control system. Background Art

[0002] The hydraulic control device is powered by an electric motor, and uses a hydraulic pump to convert mechanical energy into pressure to push the hydraulic oil. By controlling various valves to change the flow direction of the hydraulic oil, the hydraulic cylinder is pushed to make different strokes and directions to complete the different movement needs of various equipment. my country has a vast land area, and various large-scale mechanical devices are also used in some cold areas in the north, among which there will be supporting hydraulic control systems;

[0003] However, most of the hydraulic oil storage devices of existing hydraulic control systems lack temperature regulating devices. When using hydraulic oil under extremely cold conditions, special attention should be paid to the selection and maintenance of hydraulic oil to ensure the normal operation of the equipment. Due to the lack of protective measures, the viscosity of the hydraulic oil will increase and the flow performance will decrease, which may cause the equipment to operate poorly. In addition, if the hydraulic oil is emulsified, oxidized or has too high a water content, it will also cause the hydraulic oil to thicken, reduce the volume of the liquid, deteriorate the flow performance, and eventually form a freezing phenomenon. Utility Model Content

[0004] The utility model provides a counterweight type hydraulic control system, which can effectively solve the problem proposed in the above background technology that when using hydraulic oil under extremely cold conditions, special attention should be paid to the selection and maintenance of hydraulic oil to ensure the normal operation of the equipment. Due to the lack of protective measures, the viscosity of the hydraulic oil will increase, the flow performance will decrease, and the equipment may not run smoothly. In addition, if the hydraulic oil is emulsified, oxidized or the water content is too high, it will also cause the hydraulic oil to thicken, reduce the volume of the liquid, deteriorate the flow performance, and finally form a freezing phenomenon.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a counterweight type hydraulic control system, comprising a hydraulic box, a maintenance assembly is installed inside the hydraulic box;

[0006] The maintenance assembly includes a counterweight cavity, an installation cavity, oil inlet and outlet terminals, a hydraulic oil tank, an inner insulation sleeve, a ventilation slot, a resistance heating wire, a fixed thin rod, a connecting thick rod, a bearing, insulation cotton, a clamping groove cylinder, an external sleeve, an air delivery slot and a servo motor;

[0007] A counterweight cavity is provided on the inner side of the hydraulic box body, an installation cavity is provided on the inner side of the hydraulic box body at one side of the counterweight cavity, oil inlet and outlet terminals are installed at the inner bottom of the installation cavity, a hydraulic oil tank is installed on the top of the oil inlet and outlet terminals, an inner insulation sleeve is sleeved on the outer side of the hydraulic oil tank, a ventilation groove is provided on the outer side of the inner insulation sleeve, and a resistance heating wire is embedded in the inner side of the ventilation groove;

[0008] A fixed thin rod is installed on the top of the inner insulation sleeve, a connecting thick rod is welded to the top of the fixed thin rod, a bearing is sleeved on the outer side of the connecting thick rod, insulation cotton is sleeved on the outer side of the fixed thin rod, a clamping groove cylinder is sleeved on the outer side of the connecting thick rod, an external sleeve is sleeved on the outer side of the clamping groove cylinder, an air conveying groove is opened on the outer side of the external sleeve, and a servo motor is installed on the top of the hydraulic box.

[0009] Preferably, the diameter of the inner thermal insulation sleeve is equal to the inner diameter of the outer sleeve, and the outer sleeve is rotatably connected to the inner thermal insulation sleeve.

[0010] Preferably, a plurality of ventilation slots are provided, and the plurality of ventilation slots are provided at equal angles on the outside of the inner thermal insulation sleeve, and the input end of the resistance heating wire is electrically connected to the output end of the external power supply.

[0011] Preferably, the transmission end of the servo motor is welded to the top end of the external sleeve, and the input end of the servo motor is electrically connected to the output end of the external power supply.

[0012] Preferably, a cooling component is installed inside the installation chamber;

[0013] The cooling assembly includes a fan blade, a wind blocking plate, an air guide slot, a bracket, a bottom air inlet slot and a top air outlet slot;

[0014] A guide fan blade is welded at the bottom position of the outer side of the outer sleeve, a wind blocking plate is installed at the outer side of the outer sleeve at a position corresponding to the air delivery slot, an air guide slot is opened on the inner side of the wind blocking plate, a bracket is installed at the bottom end of the hydraulic box body, a bottom air inlet slot is opened at the bottom end of the hydraulic box body at a position corresponding to the outer sleeve, and a top air outlet slot is opened at the top end of the hydraulic box body at a position corresponding to the outer sleeve.

[0015] Preferably, a plurality of bottom air inlet grooves are provided, and the plurality of bottom air inlet grooves are distributed at positions corresponding to the bottom end of the hydraulic box body and the installation chamber.

[0016] Compared with the prior art, the utility model has the following beneficial effects: the utility model has a scientific and reasonable structure and is safe and convenient to use:

[0017] 1. A maintenance component is set up to stagger the ventilation slot with the air delivery slot to prevent external cold gas from directly invading the hydraulic oil tank. The heat generated during daytime use can be preserved to reduce the loss rate, thereby preventing the internal hydraulic oil from freezing. By fixing thin rods and thermal insulation cotton, cold air can be further reduced from the top. After the temperature drops to a certain level, the resistance heating wire can be turned on to heat up, preventing the hydraulic oil from freezing when used during the day the next day, ensuring that the device can be used normally to ensure engineering efficiency.

[0018] 2. A cooling component is provided, which lifts the cold air settled at the bottom through the rotation of the fan blades, and then enters the vicinity of the hydraulic oil tank through the air duct and ventilation slot, so as to continuously and quickly cool down the hydraulic oil tank, thereby preventing the hydraulic oil inside the hydraulic oil tank from boiling due to high temperature and continuous operation, ensuring that the hydraulic device can operate stably and effectively, further reducing the risk of equipment downtime caused by temperature, and improving the stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0020] In the attached picture:

[0021] Figure 1 It is a structural schematic diagram of the utility model;

[0022] Figure 2 This is a schematic diagram of the installation structure of the oil inlet and outlet terminals of the utility model;

[0023] Figure 3 It is a structural schematic diagram of the maintenance component of the utility model;

[0024] Figure 4 This is a schematic diagram of the installation structure of the practical clamping groove barrel;

[0025] Figure 5 It is a structural schematic diagram of the cooling component of the utility model;

[0026] Numbers in the figure: 1, hydraulic box;

[0027] 2. Maintenance components; 201. Counterweight chamber; 202. Installation chamber; 203. Oil inlet and outlet terminals; 204. Hydraulic oil tank; 205. Inner insulation sleeve; 206. Ventilation slot; 207. Resistance heating wire; 208. Fixing thin rod; 209. Connecting thick rod; 210. Bearing; 211. Insulation cotton; 212. Snap-on groove barrel; 213. External sleeve; 214. Air delivery slot; 215. Servo motor;

[0028] 3. Cooling component; 301. Fan blades; 302. Wind blocking plate; 303. Air guide slot; 304. Bracket; 305. Bottom air inlet slot; 306. Top air outlet slot. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0030] Example: Figure 1-5 As shown, the utility model provides a technical solution, a counterweight type hydraulic control system, comprising a hydraulic box 1, and a maintenance component 2 is installed inside the hydraulic box 1;

[0031] The maintenance assembly 2 includes a counterweight chamber 201, an installation chamber 202, oil inlet and outlet terminals 203, a hydraulic oil tank 204, an inner insulation sleeve 205, a ventilation slot 206, a resistance heating wire 207, a fixed thin rod 208, a connecting thick rod 209, a bearing 210, insulation cotton 211, a clamping groove barrel 212, an outer sleeve 213, an air delivery slot 214 and a servo motor 215;

[0032] A counterweight cavity 201 is provided on the inner side of the hydraulic housing 1, and an installation cavity 202 is provided on the inner side of the hydraulic housing 1 at one side of the counterweight cavity 201, and an oil inlet and outlet terminal 203 is installed at the inner bottom position of the installation cavity 202, and a hydraulic oil tank 204 is installed on the top of the oil inlet and outlet terminal 203, and an inner insulation sleeve 205 is sleeved on the outer side of the hydraulic oil tank 204, and a ventilation groove 206 is provided on the outer side of the inner insulation sleeve 205, and a plurality of ventilation grooves 206 are provided, and a plurality of ventilation grooves 206 are provided on the outer side of the inner insulation sleeve 205 at equal angles, and an input end of a resistance heating wire 207 is electrically connected to an output end of an external power supply, which is conducive to uniformly insulating the hydraulic oil tank 204, and a resistance heating wire 207 is embedded in the inner side of the ventilation groove 206;

[0033] A fixed thin rod 208 is installed at the top of the inner insulation sleeve 205, and a connecting thick rod 209 is welded to the top of the fixed thin rod 208. A bearing 210 is sleeved on the outer side of the connecting thick rod 209, and a thermal insulation cotton 211 is sleeved on the outer side of the fixed thin rod 208. A clamping groove cylinder 212 is sleeved on the outer side of the connecting thick rod 209, and an outer sleeve 213 is sleeved on the outer side of the clamping groove cylinder 212. The diameter of the inner insulation sleeve 205 is equal to the inner diameter of the outer sleeve 213. The outer sleeve 213 is rotatably connected to the inner insulation sleeve 205, which is convenient for quickly rotating the outer sleeve 213. An air delivery groove 214 is opened on the outer side of the outer sleeve 213. A servo motor 215 is installed on the top of the hydraulic box 1. The transmission end of the servo motor 215 is welded to the top of the outer sleeve 213, and the outer sleeve 213 can be rotated at a uniform speed. The input end of the servo motor 215 is electrically connected to the output end of the external power supply.

[0034] A cooling component 3 is installed inside the installation chamber 202;

[0035] The cooling component 3 includes a fan blade 301, a wind blocking plate 302, an air guide slot 303, a bracket 304, a bottom air inlet slot 305 and a top air outlet slot 306;

[0036] A guide fan blade 301 is welded at the bottom position of the outer side of the external sleeve 213, a wind blocking plate 302 is installed at the outer side of the external sleeve 213 at a position corresponding to the air delivery slot 214, an air guide slot 303 is opened on the inner side of the wind blocking plate 302, a bracket 304 is installed at the bottom end of the hydraulic box body 1, a bottom air inlet slot 305 is opened at the bottom end of the hydraulic box body 1 at a position corresponding to the external sleeve 213, a top air outlet slot 306 is opened at the top end of the hydraulic box body 1 at a position corresponding to the external sleeve 213, a plurality of bottom air inlet slots 305 are opened, and the plurality of bottom air inlet slots 305 are evenly distributed at the bottom end of the hydraulic box body 1 at a position corresponding to the installation chamber 202, so as to facilitate the rapid discharge of exhaust gas.

[0037] The working principle and use process of the utility model: First, according to the site requirements, the required counterweight is given to the counterweight cavity 201, which can be filled with sand, counterweight blocks or liquid, and the counterweight can be adjusted according to the operating instructions;

[0038] Then, the oil inlet and outlet terminals 203 are connected to the hydraulic control machine, so that the hydraulic oil is transmitted from the hydraulic oil tank 204 through the oil inlet and outlet terminals 203;

[0039] When the operator uses the hydraulic control device at normal room temperature, he first controls the servo motor 215 to rotate, thereby driving the external sleeve 213 to rotate on the outside of the bearing 210 through the clamping groove cylinder 212 through the servo motor 215. At this time, the external sleeve 213 will slowly rotate on the outside of the connecting thick rod 209, and then stop rotating when the air delivery groove 214 and the ventilation groove 206 coincide with each other. Then, when the device is used during the day or in a normal temperature area, the air delivery groove 214 and the ventilation groove 206 can be used to dissipate heat. When it is used at night or in an extremely cold area, the servo motor 215 is started to rotate, so that The servo motor 215 drives the outer sleeve 213 to rotate, and at this time, the ventilation slot 206 will be staggered with the air delivery slot 214 to prevent the external cold gas from directly invading the hydraulic oil tank 204, and the heat generated by daytime use can be preserved to reduce the loss rate, thereby preventing the internal hydraulic oil from freezing. In addition, the thin rod 208 and the insulation cotton 211 can be fixed to further reduce the cold air from the top. After the temperature drops to a certain level, the resistance heating wire 207 can be turned on to heat up, so as to prevent the hydraulic oil from freezing when used during the day on the next day, thereby ensuring that the device can be used normally and the engineering efficiency can be guaranteed.

[0040] In a high temperature environment, or when the machine is used repeatedly without interruption, the hydraulic oil needs to be cooled. At this time, the servo motor 215 can be turned on. At this time, the servo motor 215 will drive the fan blades 301 to rotate, thereby lifting the cold air settled at the bottom through the bottom air inlet groove 305. The cold air will then be blocked by the wind blocking plate 302, and then enter the vicinity of the hydraulic oil tank 204 through the air delivery groove 214 and the ventilation groove 206, thereby continuously and rapidly cooling the hydraulic oil tank 204, thereby preventing the hydraulic oil inside the hydraulic oil tank 204 from boiling due to high temperature and continuous operation, ensuring that the hydraulic device can operate stably and effectively, further reducing the risk of equipment downtime due to temperature, and improving the stability of the equipment. Excess air will be discharged from the air guide groove 303 and the top air outlet groove 306.

[0041] Finally, it should be noted that the above description is only a preferred example of the present utility model and is not intended to limit the present utility model. Although the present utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A counterweight type hydraulic control system, comprising a hydraulic box (1), characterized in that: A maintenance assembly (2) is installed inside the hydraulic box (1); The maintenance component (2) comprises a counterweight chamber (201), an installation chamber (202), oil inlet and outlet terminals (203), a hydraulic oil tank (204), an inner heat-insulating sleeve (205), a ventilation slot (206), a resistance heating wire (207), a fixed thin rod (208), a connecting thick rod (209), a bearing (210), heat-insulating cotton (211), a clamping groove cylinder (212), an external sleeve (213), an air delivery slot (214) and a servo motor (215); A counterweight cavity (201) is provided on the inner side of the hydraulic housing (1); an installation chamber (202) is provided on the inner side of the hydraulic housing (1) at one side of the counterweight cavity (201); oil inlet and outlet terminals (203) are installed at the inner bottom of the installation chamber (202); a hydraulic oil tank (204) is installed at the top of the oil inlet and outlet terminals (203); an inner heat-insulating sleeve (205) is sleeved on the outer side of the hydraulic oil tank (204); a ventilation groove (206) is provided on the outer side of the inner heat-insulating sleeve (205); and a resistance heating wire (207) is embedded in the inner side of the ventilation groove (206); A fixed thin rod (208) is installed at the top end of the inner thermal insulation sleeve (205), a connecting thick rod (209) is welded to the top end of the fixed thin rod (208), a bearing (210) is sleeved on the outer side of the connecting thick rod (209), a thermal insulation cotton (211) is sleeved on the outer side of the fixed thin rod (208), a clamping groove cylinder (212) is sleeved on the outer side of the connecting thick rod (209), an outer sleeve (213) is sleeved on the outer side of the clamping groove cylinder (212), an air delivery groove (214) is opened on the outer side of the outer sleeve (213), and a servo motor (215) is installed at the top end of the hydraulic box (1).

2. A counterweight type hydraulic control system according to claim 1, characterized in that: The diameter of the inner heat-insulating sleeve (205) is equal to the inner diameter of the outer sleeve (213), and the outer sleeve (213) is rotatably connected to the inner heat-insulating sleeve (205).

3. A counterweight type hydraulic control system according to claim 1, characterized in that: A plurality of ventilation slots (206) are provided, and the plurality of ventilation slots (206) are provided at equal angles on the outside of the inner thermal insulation sleeve (205). The input end of the resistance heating wire (207) is electrically connected to the output end of an external power source.

4. A counterweight type hydraulic control system according to claim 1, characterized in that: The transmission end of the servo motor (215) is welded to the top end of the external sleeve (213), and the input end of the servo motor (215) is electrically connected to the output end of the external power supply.

5. The counterweight type hydraulic control system according to claim 1, characterized in that: A cooling component (3) is installed inside the installation chamber (202); The cooling component (3) comprises a fan blade (301), a wind blocking plate (302), an air guide slot (303), a bracket (304), a bottom air inlet slot (305) and a top air outlet slot (306); A fan blade (301) is welded at the bottom position of the outer side of the external sleeve (213); a wind blocking plate (302) is installed at the outer side of the external sleeve (213) at a position corresponding to the air delivery slot (214); an air guide slot (303) is provided on the inner side of the wind blocking plate (302); a bracket (304) is installed at the bottom end of the hydraulic box (1); a bottom air inlet slot (305) is provided at the bottom end of the hydraulic box (1) at a position corresponding to the outer sleeve (213); and a top air outlet slot (306) is provided at the top end of the hydraulic box (1) at a position corresponding to the outer sleeve (213).

6. A counterweight type hydraulic control system according to claim 5, characterized in that: A plurality of bottom air inlet grooves (305) are provided, and the plurality of bottom air inlet grooves (305) are distributed at positions corresponding to the bottom end of the hydraulic box body (1) and the installation chamber (202).

Images