Low-temperature-resistant hydraulic push rod
By installing an electric heating rod on the outer wall of the spiral coil of the hydraulic push rod, the problem of reduced fluidity of hydraulic oil in low-temperature environments is solved, enabling the normal use of the hydraulic push rod under low-temperature conditions.
Patent Information
- Application Number
- CN202520306770.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-12-16
- Estimated Expiration
- 2035-02-25
AI Technical Summary
In low-temperature environments, the fluidity of hydraulic oil decreases, affecting the normal operation of the hydraulic push rod.
An electric heating rod is installed on the outer wall of the spiral coil to heat the oil tank by heating the medium inside the spiral coil, thus preventing the oil in the tank from freezing and ensuring the normal operation of the hydraulic push rod.
By heating the medium inside the spiral coil, the oil in the tank is prevented from freezing, ensuring that the hydraulic push rod can work normally in low-temperature environments.
Smart Images
Figure CN223676685U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to photovoltaic auxiliary accessory field especially relates to a low temperature resistant hydraulic push rod. BACKGROUND
[0002] The photovoltaic board of photovoltaic power station adjusts angle through photovoltaic tracking support, and photovoltaic tracking support needs driving device to drive, and part of driving is driven by hydraulic push rod, and because hydraulic drive is relied on hydraulic oil to transmit pressure, the flowability of hydraulic oil reduces under low temperature environment, and the normal work of hydraulic push rod is affected. UTILITY MODEL CONTENTS
[0003] The utility model discloses to the above -mentioned problem, propose a low temperature resistant hydraulic push rod, heating rod sets up on the outer wall of spiral coil pipe, and electric heating rod heats spiral coil pipe, and the medium in spiral coil pipe heats, and spiral coil pipe heats oil tank, and the oil in oil tank can be frozen after oil tank is heated, and ensure that the whole hydraulic push rod can normally use.
[0004] The utility model discloses the technical scheme as follows:
[0005] A low temperature resistant hydraulic push rod, including hydraulic cylinder, valve block and to the clamping screw, the hydraulic cylinder is installed on the valve block through the clamping screw, and the both ends of the hydraulic cylinder are provided with first lifting lug and second lifting lug respectively, the oil tank is provided on the valve block, and the oil tank is in the intercommunication state with the hydraulic cylinder, and still include electric heating rod, spiral coil pipe and communication pipe, the both ends of the spiral coil pipe are connected with the both ends of the communication pipe respectively, the electric heating rod sets up on the outer wall of spiral coil pipe, and the spiral coil pipe and communication pipe are filled with liquid medium, and the oil tank is located in the spiral coil pipe.
[0006] The liquid medium in the spiral coil pipe and the communication pipe in the hydraulic push rod can be pure water or brine or other liquid medium.
[0007] The electric heating rod of the hydraulic push rod sets up on the outer wall of spiral coil pipe, and the electric heating rod heats spiral coil pipe, and the medium in spiral coil pipe heats, and spiral coil pipe heats oil tank, and the oil in oil tank can be frozen after oil tank is heated, and ensure that the whole hydraulic push rod can normally use.
[0008] Optionally, the oil tank is a cylindrical oil tank, and the spiral coil pipe is attached to the outer wall of the oil tank.
[0009] The spiral coil pipe is attached to the outer wall of the oil tank, which ensures that the spiral coil pipe can uniformly heat the oil tank, and ensures that the whole oil tank is in a uniformly heated state.
[0010] Optionally, the electric heating rod has multiple rods, and the electric heating rods are distributed equidistantly and equi-radially on the spiral coil.
[0011] The electric heating rods are distributed equidistantly and equi-radially on the outer wall of the spiral coil, which can uniformly heat the spiral coil.
[0012] Optionally, a sheath is arranged on the valve block, and the oil tank and the spiral coil are located in the sheath, and the spiral coil, the communication pipe and the electric heating rod are located between the sheath and the oil tank.
[0013] The sheath can reduce heat loss in the heating process and protect the spiral coil, the communication pipe and the electric heating rod.
[0014] Optionally, a piston is arranged to slide in the hydraulic cylinder, a plug rod is arranged on the piston, and a rod cavity and a rodless cavity are arranged on two sides of the piston, the plug rod is located in the rod cavity, and the first lifting lug is arranged on the plug rod.
[0015] Optionally, a first circulating electromagnetic valve and a second circulating electromagnetic valve are further arranged, a first opening and a second opening are arranged on the rod cavity, a third opening and a fourth opening are arranged on the rodless cavity, a first main cavity and a first auxiliary cavity are arranged in the first circulating electromagnetic valve, a second main cavity and a second auxiliary cavity are arranged in the second circulating electromagnetic valve, the first opening is connected with the first main cavity, the first auxiliary cavity is connected with the first auxiliary cavity, the third opening is connected with the second main cavity, the fourth opening is connected with the second auxiliary cavity, the first auxiliary cavity is connected with the second main cavity, and the first main cavity and the second auxiliary cavity are connected with the oil tank.
[0016] Optionally, a circulating pump is further arranged, and the circulating pump is connected with the second auxiliary cavity and the oil tank.
[0017] The circulating pump can pump the oil out of the oil tank and deliver the oil to the first circulating electromagnetic valve or the second circulating electromagnetic valve.
[0018] When the first circulating electromagnetic valve and the second circulating electromagnetic valve are powered on, the hydraulic cylinder is connected through the four openings and the circulating oil pump, the hydraulic oil in the hydraulic cylinder is circulated through the working of the circulating oil pump, and the circulating hydraulic pump adopts a discontinuous intermittent working mode; when the first circulating electromagnetic valve and the second circulating electromagnetic valve are powered off, the four openings are closed, and the circulating oil pump does not work. This design can ensure that the hydraulic oil in the hydraulic cylinder is not frozen in a low-temperature environment.
[0019] Optionally, the clamping screw has multiple rods, and the clamping screws are distributed around the hydraulic cylinder.
[0020] The utility model discloses a beneficial effect is: heating rod sets up on the outer wall of spiral coil pipe, and electric heating rod heats spiral coil pipe, and the medium in spiral coil pipe heats, and spiral coil pipe heats oil tank, and the oil liquid in oil tank can be avoided freezing after heating, and ensure that whole hydraulic push rod can normally use. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical scheme in the embodiment of the present application or prior art, the drawings needed in the embodiment will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments in the utility model, and other drawings can also be obtained according to these drawings for the ordinary skilled in the art.
[0022] Figure 1 It is the structure schematic diagram of low-temperature-resistant hydraulic push rod;
[0023] Figure 2 It is the position relation schematic diagram of hydraulic cylinder and oil tank;
[0024] Figure 3 It is the position relation schematic diagram of heating rod and spiral coil pipe;
[0025] Figure 4 It is the control principle schematic diagram of first circulating electromagnetic valve and second circulating electromagnetic valve.
[0026] The reference signs in the drawing are as follows: 1, hydraulic cylinder;101, rod cavity;1011, first opening;1012, second opening;102, rodless cavity;1021, third opening;1022, fourth opening;103, piston;104, plug rod;2, clamp screw;3, spiral coil pipe;4, oil tank;5, sheath;6, valve plate;71, first circulating electromagnetic valve;711, first main cavity;712, first auxiliary cavity;72, second circulating electromagnetic valve;721, second main cavity;722, second auxiliary cavity;81, first lifting lug;82, second lifting lug;9, circulating pump;10, communication pipe;11, electric heating rod. DETAILED DESCRIPTION
[0027] In order to make the above purpose, features and advantages of the utility model more apparent and easy to understand, the specific embodiment of the utility model will be described in detail in the following with the drawings.
[0028] In the following description, a lot of specific details are set forth in order to fully understand the utility model, but the utility model can also be implemented in other ways different from the description, and the person skilled in the art can make similar generalization without violating the connotation of the utility model, therefore, the utility model is not limited by the specific embodiment disclosed below.
[0029] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.
[0030] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 4 As shown, a low-temperature resistant hydraulic push rod includes a hydraulic cylinder 1, a valve block, and a clamping screw 2. The hydraulic cylinder 1 is mounted on the valve block via the clamping screw 2. The two ends of the hydraulic cylinder 1 are respectively provided with a first lifting lug 81 and a second lifting lug 82. An oil tank 4 is provided on the valve block, and the oil tank 4 is in communication with the hydraulic cylinder 1. It also includes an electric heating rod 11, a spiral coil 3, and a connecting pipe 10. The two ends of the spiral coil 3 are respectively connected to the two ends of the connecting pipe 10. The electric heating rod 11 is provided on the outer wall of the spiral coil 3. The spiral coil 3 and the connecting pipe 10 are filled with a liquid medium. The oil tank 4 is located inside the spiral coil 3.
[0031] In this type of hydraulic push rod, the liquid medium in the spiral coil 3 and the connecting pipe 10 can be pure water, salt water, or other liquid media.
[0032] In this type of hydraulic push rod, the electric heating rod 11 is set on the outer wall of the spiral coil 3. The electric heating rod 11 heats the spiral coil 3, and the medium inside the spiral coil 3 heats up. The spiral coil 3 heats the oil tank 4. After the oil tank 4 is heated, the oil inside the oil tank 4 can be prevented from freezing, ensuring that the entire hydraulic push rod can be used normally.
[0033] As attached Figure 1 Appendix Figure 2 Appendix Figure 3 and appendix Figure 4 As shown, the oil tank 4 is a cylindrical oil tank 4, and the spiral coil 3 is attached to the outer wall of the oil tank 4.
[0034] The spiral coil 3 is close to the outer wall of the oil tank 4, which can ensure that the spiral coil 3 can heat the oil tank 4 evenly and ensure that the entire oil tank 4 is in a state of uniform heating.
[0035] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 3 and the accompanying drawings Figure 4 , the electric heating rod 11 has a plurality of, and the electric heating rod 11 is equidistantly and equi-radially distributed on the spiral coil 3.
[0036] The equidistant and equi-radial distribution of the electric heating rod 11 on the outer wall of the spiral coil 3 can uniformly heat the spiral coil 3.
[0037] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 3 and the accompanying drawings Figure 4 , it further comprises a sheath 5, which is arranged on the valve block, and the oil tank 4 and the spiral coil 3 are located in the sheath 5, and the spiral coil 3, the communication pipe 10 and the electric heating rod 11 are located between the sheath 5 and the oil tank 4.
[0038] The sheath 5 is used to reduce heat loss during heating and to protect the spiral coil 3, the communication pipe 10 and the electric heating rod 11.
[0039] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 3 and the accompanying drawings Figure 4 , a piston 103 is arranged to slide in the hydraulic cylinder 1, a plug rod 104 is arranged on the piston 103, and the two sides of the piston 103 are respectively a rod cavity 101 and a rodless cavity 102. The plug rod 104 is located in the rod cavity 101, and the first lifting lug 81 is arranged on the plug rod 104.
[0040] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 3 and the accompanying drawings Figure 4 , it further comprises a first circulating electromagnetic valve 71 and a second circulating electromagnetic valve 72, the rod cavity 101 is provided with a first opening 1011 and a second opening 1012, the rodless cavity 102 is provided with a third opening 1021 and a fourth opening 1022, the first circulating electromagnetic valve 71 is provided with a first main cavity 711 and a first auxiliary cavity 712, the second circulating electromagnetic valve 72 is provided with a second main cavity 721 and a second auxiliary cavity 722, the first opening 1011 is connected with the first main cavity 711, the first auxiliary cavity 712 is connected with the first auxiliary cavity 712, the third opening 1021 is connected with the second main cavity 721, the fourth opening 1022 is connected with the second auxiliary cavity 722, the first auxiliary cavity 712 is connected with the second main cavity 721, and the first main cavity 711 and the second auxiliary cavity 722 are connected with the oil tank 4.
[0041] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 3and the accompanying drawings Figure 4 As shown in the accompanying drawings
[0042] The function of the circulating pump 9 is to pump the oil out of the oil tank 4 to the first circulating electromagnetic valve 71 or the second circulating electromagnetic valve 72.
[0043] When the first circulating electromagnetic valve 71 and the second circulating electromagnetic valve 72 are powered on, the hydraulic cylinder 1 is connected through the four openings and the circulating oil pump, and the hydraulic oil in the hydraulic cylinder 1 is circulated by the working of the circulating oil pump, and the circulating hydraulic pump adopts a discontinuous intermittent working mode; when the first circulating electromagnetic valve 71 and the second circulating electromagnetic valve 72 are powered off, the four openings are closed, and the circulating oil pump does not work. This design can ensure that the hydraulic oil in the hydraulic cylinder 1 is not frozen in a low-temperature environment.
[0044] As shown in the accompanying drawings Figure 1 , the accompanying drawings Figure 2 , the accompanying drawings Figure 3 and the accompanying drawings Figure 4 Figure 1 Figure 2 Figure 3 Figure 4 As shown in the accompanying drawings
[0045] The above-described embodiments only express some embodiments of the present application, which are described in more detail and in more detail, but cannot be understood as limiting the scope of the patent of the present application. It should be noted that for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced by equivalents. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.
Claims
1. A low-temperature-resistant hydraulic push rod, comprising a hydraulic cylinder, a valve block and a clamping screw, the hydraulic cylinder is installed on the valve block through the clamping screw, the hydraulic cylinder is provided with a first lifting lug and a second lifting lug at both ends respectively, the valve block is provided with an oil tank, the oil tank is in communication with the hydraulic cylinder, characterized in that, Further comprising an electric heating rod, a spiral coil and a communicating pipe, two ends of the spiral coil are respectively connected with two ends of the communicating pipe, the electric heating rod is arranged on the outer wall of the spiral coil, the spiral coil and the communicating pipe are filled with liquid medium, and the oil tank is located in the spiral coil.
2. The low temperature resistant hydraulic push rod of claim 1, wherein, The oil tank is a cylindrical oil tank, and the spiral coil is tightly attached to the outer wall of the oil tank.
3. The low temperature resistant hydraulic push rod of claim 1, wherein, The electric heating rod has a plurality of electric heating rods, and the electric heating rods are equally and radially distributed on the spiral coil.
4. The low temperature resistant hydraulic push rod of claim 1, wherein, Further comprising a sheath, the sheath is arranged on the valve block, the oil tank and the spiral coil are located in the sheath, and the spiral coil, the communicating pipe and the electric heating rod are located between the sheath and the oil tank.
5. The low temperature resistant hydraulic push rod of claim 1, wherein, A piston is slidably arranged in the hydraulic cylinder, a plug rod is arranged on the piston, two sides of the piston are a rod cavity and a rodless cavity respectively, the plug rod is located in the rod cavity, and the first lifting lug is arranged on the plug rod.
6. The low temperature resistant hydraulic push rod of claim 5, wherein, Further comprising a first circulating electromagnetic valve and a second circulating electromagnetic valve, a first opening and a second opening are arranged on the rod cavity, a third opening and a fourth opening are arranged on the rodless cavity, a first main cavity and a first auxiliary cavity are arranged in the first circulating electromagnetic valve, a second main cavity and a second auxiliary cavity are arranged in the second circulating electromagnetic valve, the first opening is connected with the first main cavity, the first auxiliary cavity is connected with the first auxiliary cavity, the third opening is connected with the second main cavity, the fourth opening is connected with the second auxiliary cavity, the first auxiliary cavity is connected with the second main cavity, and the first main cavity and the second auxiliary cavity are connected with the oil tank.
7. The low temperature resistant hydraulic push rod of claim 6, wherein, Further comprising a circulating pump, the circulating pump is connected with the second auxiliary cavity and the oil tank.
8. The low temperature resistant hydraulic push rod of claim 1, wherein, The pair of clamping screws has a plurality of clamping screws, and the clamping screws are distributed around the hydraulic cylinder.