Straight arm series right side box

By designing a unified right-side tank for the straight boom series, the problems of installation errors and unreasonable space caused by different tank models were solved, realizing the universality and uniformity of tanks, improving production efficiency and reducing after-sales maintenance costs.

CN224171067UActive Publication Date: 2026-04-28SHANDONG CHUFENG HEAVY IND MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG CHUFENG HEAVY IND MASCH CO LTD
Filing Date
2025-08-18
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The inconsistency between the oil tank model and external dimensions of the straight boom series vehicles leads to frequent installation errors of hydraulic and electrical components, numerous tooling requirements, low efficiency, high after-sales costs, and unreasonable space layout.

Method used

Design a straight boom series right-side fuel tank, with a unified fuel tank model 29E required. Adopt a unified layout, including components such as fuel tank, return oil filter, air filter, level gauge, high-pressure filter, emergency pump, pump motor and variable pump. Optimize the oil pipe routing, adopt an arc surface design to avoid collisions, and connect to the vehicle chassis via lugs to achieve universality and uniformity across various vehicle models.

Benefits of technology

It improved the efficiency of assembly line production, reduced the probability of installation errors and after-sales maintenance costs, achieved uniformity and universality of the right-side box, reduced tooling costs, and improved the economic efficiency of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of straight arm vehicle type equipment, in particular to a straight arm series right side box which is provided with an oil tank, an oil return filter, an air filter element, a liquid level meter, a high-pressure filter, an emergency pump, a pump motor, a variable pump, a shell and the like, the formed structural layout can improve the efficiency of welding workers, the welding time is saved, and the production efficiency is improved. The cost caused by using different tools is reduced, the number of tools used for assembling is reduced, and the cost is reduced. The oil tank, the oil return filter, the air filter element, the liquid level meter, the high-pressure filter, the emergency pump, the pump motor, the variable pump, the shell and the like are arranged, and the formed structural layout can improve the efficiency of welding workers, save the welding time, reduce the cost caused by using different tools, reduce tools used for assembly and reduce the cost.
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Description

Technical Field

[0001] This utility model relates to the technical field of straight boom vehicle equipment, and in particular to a right-side box for a straight boom series. Background Technology

[0002] The straight boom series includes various models that require different sized oil tanks, such as the 18E, 20E, 23E, 25E, and 29E models. When installing the right-side tank, the different tank models and external dimensions can easily lead to installation errors when installing other hydraulic and electrical components. This results in numerous tooling requirements, low efficiency, a high probability of errors, increased after-sales costs, and an unreasonable spatial layout. Utility Model Content

[0003] To improve tooling efficiency and reduce the probability of errors, this utility model provides a straight-arm series right-side box.

[0004] The technical solution for a straight-arm series right-side box provided by this utility model is as follows:

[0005] A straight-arm series right-side tank includes an outer shell. The bottom of the outer shell is bolted to an oil tank, an emergency pump, and a pump motor. A variable pump is snapped onto the output end of the pump motor. A high-pressure filter is bolted to the inner wall of one side of the outer shell. A return oil filter and an air filter are fixedly connected to the top of the oil tank. A level gauge is fixedly connected to one side of the oil tank. The oil tank, emergency pump, and pump motor are arranged in a row from left to right. The high-pressure filter is located between the emergency pump and the pump motor.

[0006] By adopting the above technical solution, a comparison of the 18E and 29E oil tanks and the required oil volume reveals that, after comprehensively considering cost and space uniformity, most of the components installed in the right-side tank are hydraulic, which can reduce the cost of oil pipes. The 18E to 29E oil tanks are uniformly installed with the oil tank required for 29E, resulting in consistent oil tanks used in the right-side tanks. The layout of this device is uniform and universal, which is conducive to improving the efficiency of assembly line production. The use of universal hydraulic and electrical components makes it easier for workers to install, and also helps to reduce the cost of after-sales manual modification and alleviate the economic pressure of after-sales maintenance.

[0007] Preferably, one side of the housing is arc-shaped, the top area of ​​the housing is larger than the bottom area of ​​the housing, the pump motor is located at the end close to the arc-shaped surface, the top height of the return oil filter is higher than the height of the high pressure filter, and the bottom height of the high pressure filter is higher than the top height of the emergency pump.

[0008] By adopting the above technical solution, the curved surface helps to confirm whether there are any problems such as bumps or excessively small turning radii in the opening position and wiring position of the right side box. Through three-dimensional simulation and actual testing, the opening position and oil pipe routing are completely determined, without any bumps or excessively small turning radii. Thus, the structure, electrical, hydraulic and wiring layout of the right side box are completely unified, and any parts of the same right side box can be used from 18E to 29E.

[0009] Preferably, the outer surface of the housing is fixedly connected with a plurality of lugs.

[0010] By adopting the above technical solution, the right side box is connected to the chassis of the straight boom series vehicle via a lug.

[0011] In summary, this utility model has the following beneficial technical effects:

[0012] 1. This device is equipped with an oil tank, return oil filter, air filter, level gauge, high pressure filter, emergency pump, pump motor, variable pump and housing, etc. The structural layout can improve the efficiency of welding workers, save welding time, reduce the cost caused by using different tooling, reduce the tooling used for assembly, and reduce costs.

[0013] 2. Most of the components installed in the right-side box of this device are hydraulic, which can reduce the cost of oil pipes. At the same time, after actual use, it has been confirmed that it is applicable to other models, including but not limited to 18E, 20E, 23E, 25E, 29E, etc., which completes the standardization and universality of the right-side box, which helps to reduce the chance of installation errors by production line workers, and also makes full use of the space of the right-side box, making the right-side box more reasonable.

[0014] 3. When this device is being sprayed, since multiple vehicles can use the same right-side box, there is no need to distinguish between different models. This ensures that installation will not be impossible due to model issues. The uniformity and universality of the layout of this device are conducive to improving the efficiency of assembly line production. The universal hydraulic and electrical components used are more convenient for workers to install, which also helps to reduce the cost of after-sales manual rectification, alleviate the economic pressure of after-sales maintenance, and improve the economic efficiency of the device. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a right-side box in a straight arm series according to this utility model;

[0016] Figure 2 This is a top view of a right-side box of a straight arm series according to this utility model;

[0017] Figure 3 This is a front view of a right-side box of a straight arm series according to this utility model;

[0018] Figure 4 This is a left view of a right-side box of a straight arm series according to this utility model.

[0019] Explanation of reference numerals in the attached diagram: 1. Oil tank; 2. Return oil filter; 3. Air filter element; 4. Level gauge; 5. High pressure filter; 6. Emergency pump; 7. Pump motor; 8. Variable pump; 9. Housing. Detailed Implementation

[0020] The following is in conjunction with the appendix Figure 1-4 The present invention will be described in further detail below.

[0021] The layout and structure of the right-side box of the straight boom series are based on a comprehensive consideration of the chassis, such as the chassis wheelbase, the space layout inside the side box, and the chassis space layout. The model and versatility of hydraulic components such as the oil tank 1 and electrical components such as the motor in the right-side box are of paramount importance.

[0022] This utility model discloses a straight arm series right-side box.

[0023] Reference Figure 1 , Figure 3 The system includes an outer casing 9. The bottom of the outer casing 9 is bolted to an oil tank 1, an emergency pump 6, and a pump motor 7. The oil tank 1 has a casing size of 731 mm * 595 mm * 355 mm. The return oil filter 2 has a size of 125 mm * 125 mm * 98 mm. The air filter element 3 has a size of 220 mm * 220 mm * 105 mm. A variable pump 8 is attached to the output end of the pump motor 7. A high-pressure filter 5 is bolted to the inner wall of one side of the outer casing 9. The return oil filter 2 and the air filter element 3 are fixedly connected to the top of the oil tank 1. A level gauge 4 is fixedly connected to one side of the oil tank 1. The level gauge 4 has a size of 180 mm * 30 mm * 23 mm. The high-pressure filter 5 has a size of 96 mm * 96 mm * 237 mm. The emergency pump 6 has a size of 313 mm * 133 mm * 133 mm. The pump motor 7 has a size of 381 mm * 230 mm * 266 mm. The variable pump 8 has a size of 8191 * 173 * 181 mm.

[0024] Previously, the right-side box was only applicable to the 29E bridge-drive boom truck with a wheelbase of 3.02m. Later, it was adapted to the 18E, 20E, 22E, and 23E bridge-drive boom trucks, all with a wheelbase of 2.5m. The external dimensions of the right-side box are 1520 mm * 650 mm * 485 mm. The layout of components such as the oil tank 1, emergency pump 6, pump motor 7, variable pump 8, housing 9, and high-pressure filter 5, as well as other hydraulic and electrical components, within the right-side box is completely standardized and universal. This reduces the chance of installation errors by production line workers, improves the efficiency of assembly line production, and the universal hydraulic and electrical components used are easier for workers to install. It also helps reduce the cost of after-sales manual rectification, alleviates the economic pressure of after-sales maintenance, and improves the economic efficiency of the equipment.

[0025] The connections between the outer casing 9, oil tank 1, emergency pump 6, pump motor 7, variable pump 8, high pressure filter 5, return oil filter 2 and air filter element 3, level gauge 4 and other components such as oil pipes in the right side tank are all made using existing publicly available connection methods.

[0026] Reference Figure 2 , Figure 3 The oil tank 1, emergency pump 6, and pump motor 7 are arranged in a row from left to right. The high-pressure filter 5 is located between the emergency pump 6 and the pump motor 7. 2. Initially, the hydraulic component oil tank 1 in the right-side box was on the right side. Later, because the oil pipe routing was not ideal when installing the prototype, the oil tank 1 was moved to the left side. The routing of the oil pipe was further optimized to make it suitable for various models.

[0027] Reference Figure 1 , Figure 3 One side of the outer shell 9 is curved, and the top area of ​​the outer shell 9 is larger than the bottom area of ​​the outer shell 9. The right side box is located on the right side of the middle part of the chassis. Through the overall shape layout (such as the curved design), the right side box will not protrude from the outermost tire of the chassis during normal use, and will not hinder the vehicle's passability, center of gravity and layout.

[0028] Reference Figure 3 The pump motor 7 is located at one end close to the curved surface, and the right side box is located on the right side of the middle part of the chassis. During normal use, the right side box will not protrude beyond the outermost tire of the chassis, and will not hinder the vehicle's passability, center of gravity, or layout.

[0029] Reference Figure 1 , Figure 3 , Figure 4 The outer surface of the outer casing 9 is fixedly connected with several lugs.

[0030] Reference Figure 2 , Figure 3 The height of the top of the return oil filter 2 is higher than the height of the high pressure filter 5, and the height of the bottom of the high pressure filter 5 is higher than the height of the top of the emergency pump 6.

[0031] Considering that the electrical and hydraulic components of the right-side box need to be universal, and while meeting the requirements of universal installation space and internal components, a comparison of the required oil tanks 1 (18E and 29E) with the required oil volume revealed that if the size of oil tank 1 is determined according to the required oil volume, universality cannot be achieved, thus requiring the smaller oil tank to be changed to a larger one. After comprehensively considering the uniformity of cost and space, it was decided to uniformly install the oil tanks required by 29E, so that the oil tanks 1 used in the right-side box are consistent, and the size and appearance of the right-side box are consistent.

[0032] By adjusting the flow rate, current, and voltage, the electrical and hydraulic components in the right-side box can be completely unified, achieving a standardized design and wiring method for the right-side box.

[0033] The uniformity and rational layout of the right-side boxes in the straight boom series are conducive to improving the welding and assembly efficiency of assembly line workers and saving costs; improving the versatility and uniformity of the guardrails of the straight boom series aerial work platforms, and modifying the aerial work platforms to be uniform according to the different sizes of various models will not cause size inconsistencies and unreasonableness, reduce tooling steps, improve tooling efficiency, and reduce the probability of errors.

[0034] The implementation principle of a straight-arm series right-side box in this utility model embodiment is as follows:

[0035] 1. The previous right-side hydraulic tank was suitable for the 29E bridge-drive boom truck with a wheelbase of 3.02m. Later, it was adapted to the 18E, 20E, 22E, and 23E bridge-drive boom trucks, all with a wheelbase of 2.5m. Through layout adjustments, the hydraulic tank 1 in the right-side hydraulic tank was initially located on the right side. However, due to the unsatisfactory oil pipe routing during the prototype installation, the oil tank 1 was moved to the left side. The routing of the oil pipe was further optimized, thus making the oil tank 1, which can be used for a 3.02m wheelbase, generally applicable to oil tank 1 with a 2.5m wheelbase.

[0036] 2. The right-side box is located on the right side of the middle part of the chassis. During normal use, the right-side box will not protrude beyond the outermost tire of the chassis, and will not hinder the vehicle's passability, center of gravity, or layout. At the same time, most of the components installed in the right-side box are hydraulic, which can reduce the cost of oil pipes and make it applicable to other models, thus achieving the standardization and versatility of the right-side box.

[0037] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A straight-arm series right-side box, characterized in that: Includes an outer casing (9), the bottom of which is bolted to an oil tank (1), an emergency pump (6), and a pump motor (7), the output end of which is fitted with a variable pump (8), the inner wall of one side of the outer casing (9) is bolted to a high-pressure filter (5), the top of the oil tank (1) is fixedly connected to a return oil filter (2) and an air filter (3), and the side of the oil tank (1) is fixedly connected to a level gauge (4).

2. The right-side box of a straight-arm series according to claim 1, characterized in that: The oil tank (1), emergency pump (6) and pump motor (7) are arranged in a row from left to right, and the high-pressure filter (5) is located between the emergency pump (6) and the pump motor (7).

3. A straight-arm series right-side box according to claim 2, characterized in that: One side of the outer shell (9) is curved, and the top area of ​​the outer shell (9) is larger than the bottom area of ​​the outer shell (9).

4. A straight-arm series right-side box according to claim 3, characterized in that: The pump motor (7) is located at one end close to the arc surface.

5. A straight-arm series right-side box according to claim 4, characterized in that: The outer surface of the outer shell (9) is fixedly connected with several lugs.

6. A straight-arm series right-side box according to claim 5, characterized in that: The height of the top of the return oil filter (2) is higher than the height of the high pressure filter (5).

7. A straight-arm series right-side box according to claim 6, characterized in that: The height of the bottom of the high-pressure filter (5) is higher than the height of the top of the emergency pump (6).