Vertical front-mounted hydraulic oil tank

Abstract

The utility model discloses a kind of vertical front-mounted hydraulic oil tank, belong to lift truck hydraulic system technical field, including oil tank body;Oil tank body is tubular tank body, oil tank body is vertically fixed on the front upright column of the most front end of lift truck;The bottom of oil tank body is connected with oil pipe, and the top of oil tank body is provided with the flow assisting port in communication with outside. Tubular oil tank is vertically arranged in front upright column, at this time, oil and hydraulic pump exist greater height difference, and hydraulic pump is closer to oil tank, substantially shorten oil suction path, reduce along-path resistance, improve hydraulic system stability;Secondly, tubular oil tank is integrated in front upright column as structural member, can effectively share the load borne by upright column, improve the rigidity and anti-deformation ability of whole vehicle structure.

Description

Technical Field

[0001] This utility model relates to the technical field of hydraulic systems for car carriers, specifically a vertical front-mounted hydraulic oil tank. Background Technology

[0002] Car carriers, as specialized vehicles for transporting cars, typically use hydraulic systems to lift or secure the vehicles being transported. In traditional hydraulic systems, the hydraulic oil tank often has a tank-like structure and is located in the middle to rear of the vehicle frame, as shown in the attached... Figure 1 As shown.

[0003] However, the hydraulic pump in car carriers is typically installed near the front of the vehicle, resulting in a relatively long connecting hose between the pump and the oil tank. Since the hydraulic pump must overcome both frictional and local resistance when drawing oil, a long hose significantly increases this resistance, potentially leading to cavitation, unstable system pressure, or even pump damage. Furthermore, the traditional tank-like oil tank is installed independently and not integrated with the frame pillars, failing to provide structural reinforcement and wasting the vehicle's structural resources. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a vertical front-mounted hydraulic oil tank. By vertically integrating the tubular oil tank into the front column, there is a large height difference between the oil and the hydraulic pump. The gravity of the oil is used to reduce the oil suction resistance of the hydraulic pump, and the strength of the column is enhanced by the oil tank structure, while also taking into account the convenience of installation and maintenance.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A vertical front-mounted hydraulic oil tank includes an oil tank body; its core improvement lies in that: the oil tank body is a tubular body, and the oil tank body is vertically fixed to the front pillar at the very front of the car carrier; the bottom of the oil tank body is connected to an oil pipe, and the top of the oil tank body is provided with an auxiliary flow port that communicates with the outside.

[0006] By adopting the above scheme, the tubular oil tank is vertically arranged on the front pillar. At this time, there is a large height difference between the oil and the hydraulic pump, and the hydraulic pump is closer to the oil tank, which greatly shortens the oil suction path, reduces frictional resistance, and improves the stability of the hydraulic system. Secondly, the tubular oil tank is integrated into the front pillar as a structural component, which can effectively share the load borne by the pillar and improve the rigidity and deformation resistance of the whole vehicle structure.

[0007] As a preferred embodiment of a vertical front-mounted hydraulic oil tank, the top of the tank body is also equipped with a dirt cover that covers the flow port and allows ventilation. The dirt cover is a mesh cover and is located under the rain shield fixed to the top of the front column. This not only balances the air pressure inside and outside the tank to prevent air suction, but also prevents external impurities from entering the oil.

[0008] As a preferred embodiment of a vertical front-mounted hydraulic oil tank, a return oil pipe is fixed inside the tank body along its height direction. The top of the return oil pipe extends to the top of the tank body cavity, and the bottom of the return oil pipe extends to the bottom of the tank body cavity and passes through the bottom of the tank body cavity to the outside of the tank body. The built-in return oil pipe guides the oil discharge and is mainly used for adding oil during maintenance and repair. When new oil reaches the top of the return oil pipe, the oil flows out from the return oil pipe, and the oil addition should be stopped at this time.

[0009] As a preferred embodiment of a vertical front-mounted hydraulic oil tank, multiple positioning studs are fixed on the outer side of the tank body in a linear array along its height direction. The tank body is detachably fixed to the front column by the cooperation of the positioning studs and nuts. At least one limiting post is also fixed on the outer side of the tank body, which is located on the same plane as the positioning bolt. The positioning studs and limiting posts cooperate to achieve quick disassembly and assembly, which is convenient for maintenance.

[0010] As a preferred embodiment of a vertical front-mounted hydraulic oil tank, the oil tank body is provided in two sets. The two sets of oil tank bodies are respectively vertically fixed to the inner side of the left front column and the inner side of the right front column. The symmetrical double oil tank structure can expand the capacity or provide redundancy to adapt to different working conditions.

[0011] In a preferred embodiment of a vertical front-mounted hydraulic oil tank, the oil pipe comprises three parts: a left section, a middle section, and a right section. The middle section has an inlet and an outlet on its side wall, and the oil pipe is concealed under the front oil circuit guard plate of the car carrier. The left, middle, and right sections are connected in pairs by threads. The left section is threaded to the bottom of the oil tank body on the left front pillar, and the right section is threaded to the bottom of the oil tank body on the right front pillar. The threaded connection of the left, middle, and right sections simplifies the manufacturing process and reduces transportation and installation difficulties.

[0012] The beneficial effects of this utility model are: 1. Reduced oil suction resistance: The tubular oil tank is vertically arranged on the front column. At this time, there is a large height difference between the oil and the hydraulic pump, and the hydraulic pump is closer to the oil tank, which greatly shortens the oil suction path, reduces friction resistance, and improves the stability of the hydraulic system.

[0013] 2. Enhanced pillar strength: The tubular fuel tank is integrated into the front pillar as a structural component, which can effectively share the load borne by the pillar and improve the rigidity and deformation resistance of the whole vehicle structure.

[0014] 3. Combining breathability and contamination prevention: The top flow aid inlet, combined with the mesh anti-contamination cover, balances the air pressure inside and outside the box to prevent air suction and avoids external impurities from entering the oil.

[0015] 4. Optimized oil return design: The built-in oil return pipe guides the oil out and is mainly used for adding oil during maintenance and repair. When the new oil reaches the top of the oil return pipe, the oil flows out from the oil return pipe. At this time, the oil addition should be stopped.

[0016] 5. Modular installation: The positioning studs and limit posts work together to enable quick assembly and disassembly, facilitating maintenance; the symmetrical dual oil tank structure can expand capacity or provide redundancy to adapt to different working conditions.

[0017] 6. Segmented tubing connection: The left, middle and right sections of the tubing are connected by threads, which simplifies the manufacturing process and reduces the difficulty of transportation and installation. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional structural diagram of the location of a traditional tank-shaped hydraulic oil tank in the background art; Figure 2 This is a three-dimensional structural diagram showing the location of the vertical tubular hydraulic oil tank in the embodiment; Figure 3 This is a partial three-dimensional structural diagram of the location of the vertical tubular hydraulic oil tank in the embodiment; Figure 4 This is a three-dimensional structural diagram of a vertical front-mounted hydraulic oil tank. Figure 5 This is a three-dimensional diagram of the internal structure of the fuel tank. Figure 6 for Figure 5 A magnified view of a section at point A in the middle; Figure 7 for Figure 5 A magnified view of a section at point B in the middle; Figure 8 for Figure 4 A magnified view of a section at point C; Figure 9 This is an exploded view of the oil pipeline; Attached reference numerals: 1-Fuel tank body; 2-Car carrier; 3-Front pillar; 3a-Left front pillar; 3b-Right front pillar; 4-Oil pipe; 41-Left section oil pipe; 42-Middle section oil pipe; 43-Right section oil pipe; 44-Oil inlet; 45-Oil outlet; 5-Flow aid inlet; 6-Pollution cover; 7-Return oil pipe; 8-Positioning stud; 9-Limiting post; 10-Front guard plate of oil circuit; 11-Rain shield. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] like Figures 2 to 4 As shown, a vertical front-mounted hydraulic oil tank is applied to a car carrier 2. It includes an oil tank body 1. The oil tank body 1 is a tubular box (high-strength square tube) and is vertically fixed to the front pillar 3 at the front end of the car carrier 2. There are two sets of oil tank bodies 1. The two sets of oil tank bodies 1 are vertically fixed to the inner side of the left front pillar 3a and the inner side of the right front pillar 3b, respectively. The symmetrical double oil tank structure can expand the capacity or provide redundancy to adapt to different working conditions.

[0022] like Figure 4 , Figure 9 As shown, the bottom of the fuel tank body 1 is connected to an oil pipe 4, which consists of three parts: a left section oil pipe 41, a middle section oil pipe 42, and a right section oil pipe 43. The middle section oil pipe 42 has an oil inlet 44 and an oil outlet 45 on its side wall. The oil pipe 4 is hidden under the front oil circuit guard plate 10 of the car carrier 2. The left section oil pipe 41, the middle section oil pipe 42, and the right section oil pipe 43 are connected in pairs by threads. The left section oil pipe 41 is connected to the bottom of the fuel tank body 1 of the left front pillar 3a by threads, and the right section oil pipe 43 is connected to the bottom of the fuel tank body 1 of the right front pillar 3b by threads. The left, middle, and right sections of the oil pipe are connected by threads, which simplifies the manufacturing process and reduces the difficulty of transportation and installation.

[0023] like Figures 5 to 6 As shown, the top of the oil tank body 1 is provided with an auxiliary flow port 5 that communicates with the outside; the top of the oil tank body 1 is also equipped with a dirt cover 6 that covers the auxiliary flow port 5 and allows air to pass through. The dirt cover 6 is a mesh cover and is located under the rain shield 11 fixed on the top of the front column 3. It balances the air pressure inside and outside the tank to prevent air suction and prevents external impurities from entering the oil.

[0024] like Figures 5 to 7 As shown, a return oil pipe 7 is also fixed in the inner cavity of the oil tank body 1 along its height direction. The top of the return oil pipe 7 extends to the top of the inner cavity of the oil tank body 1, and the bottom of the return oil pipe 7 extends to the bottom of the inner cavity of the oil tank body 1 and passes through the bottom of the inner cavity of the oil tank body 1 to the outside of the oil tank body 1. The built-in return oil pipe 7 guides the oil to be discharged and is mainly used for adding oil during maintenance and repair. When the new oil reaches the top of the return oil pipe 7, the oil flows out from the return oil pipe 7, and the oil filling should be stopped at this time.

[0025] like Figure 8 As shown, multiple positioning studs 8 are fixed on the outer side of the fuel tank body 1, which are linearly arrayed along its height direction. The fuel tank body 1 is detachably fixed to the front column 3 by the cooperation of the positioning studs 8 and nuts. At least one limiting post 9 is also fixed on the outer side of the fuel tank body 1, which is located on the same plane as the positioning bolt. The positioning studs 8 and the limiting post 9 cooperate to achieve quick disassembly and assembly, which is convenient for maintenance.

[0026] Working Principle: Two tubular (high-strength square tube) oil tanks are vertically arranged on the front pillar 3. Their overall oil storage capacity is no less than that of a traditional tank-type hydraulic oil tank. When the hydraulic system is working, the hydraulic pump draws oil from the outlet 45, and the oil enters the pump body through the left / right section oil pipe 43 and the middle section oil pipe 42. During oil return, the oil returns to the oil pipe 4 through the inlet 44 and then back to the main body of the oil tank. The flow aid 5 and the anti-fouling cover 6 ensure the balance of air pressure inside and outside the tank, preventing cavitation due to oil reduction. Due to the large height difference between the oil and the hydraulic pump, and the fact that the hydraulic pump is closer to the oil tank, the oil suction path is significantly shortened, reducing friction resistance and improving the stability of the hydraulic system. Secondly, the tubular oil tanks are integrated into the front pillar 3 as a structural component, which can effectively share the load borne by the pillar and improve the rigidity and deformation resistance of the entire vehicle structure.

[0027] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A vertical front-mounted hydraulic oil tank, comprising a tank body; Its features are: The fuel tank is a tubular tank, which is vertically fixed to the front pillar at the very front of the car carrier. The bottom of the fuel tank is connected to an oil pipe, and the top of the fuel tank has an auxiliary flow port that communicates with the outside.

2. The vertical front-mounted hydraulic oil tank according to claim 1, characterized in that: The top of the oil tank is also equipped with a dirt-proof cover that covers the flow port and allows for ventilation.

3. The vertical front-mounted hydraulic oil tank according to claim 2, characterized in that: The anti-fouling cover is a mesh cover.

4. The vertical front-mounted hydraulic oil tank according to claim 1, characterized in that: An oil return pipe is fixed inside the inner cavity of the oil tank body, which extends along its height direction. The top of the oil return pipe extends to the top of the inner cavity of the oil tank body, and the bottom of the oil return pipe extends to the bottom of the inner cavity of the oil tank body and passes through the bottom of the inner cavity of the oil tank body to the outside of the oil tank body.

5. The vertical front-mounted hydraulic oil tank according to claim 1, characterized in that: Multiple positioning studs are fixed on the outer side of the oil tank body, which are arranged in a linear array along its height direction. The oil tank body is detachably fixed to the front column by the cooperation of the positioning studs and nuts.

6. The vertical front-mounted hydraulic oil tank according to claim 5, characterized in that: At least one limiting post, which is located on the same plane as the positioning bolt, is also fixed on the outer side of the oil tank body.

7. The vertical front-mounted hydraulic oil tank according to claim 1, characterized in that: The fuel tank body is provided in two sets, and the two sets of fuel tank bodies are respectively vertically fixed to the inner side of the left front column and the inner side of the right front column.

8. The vertical front-mounted hydraulic oil tank according to claim 7, characterized in that: The oil pipe consists of three parts: a left section, a middle section, and a right section. The middle section has an inlet and an outlet on its side wall. The left, middle, and right sections are connected to each other by threads. The left section is connected to the bottom of the oil tank of the left front pillar by threads, and the right section is connected to the bottom of the oil tank of the right front pillar by threads.

9. The vertical front-mounted hydraulic oil tank according to claim 1, characterized in that: The oil pipe is hidden under the front guard plate of the car carrier's oil line.

10. The vertical front-mounted hydraulic oil tank according to claim 2, characterized in that: The anti-fouling cover is located under the rain shield fixed to the top of the front pillar.

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