A semi-automatic lubrication system for telescopic forklifts

Abstract

This utility model discloses a semi-automatic lubrication system for telescopic boom forklifts, including an interconnected electronic lubrication pump and a distributor. The distributor is connected to lubrication hoses and lubrication rigid pipes via several distributor connectors. The lubrication hoses and rigid pipes are equipped with connector bodies and lubrication joints, and are positioned by clamps. The lubrication joints are connected by bolts. This utility model adopts a centralized redistribution design concept, directing each lubrication point to an easily accessible location, and then connecting it to the distributor. This concentrates the dispersed lubrication points into a single distributor for grease application, resulting in greater efficiency and convenience, overcoming the problems of low operating efficiency and uneven lubrication in existing technologies.

Description

Technical Field

[0001] This utility model relates to the field of semi-automatic lubrication system for telescopic forklifts. Background Technology

[0002] Telescopic boom forklifts are widely used in ports, construction, agriculture, warehousing and logistics. Due to the complex operating environment (such as high dust, high humidity, and large temperature differences) and frequent load changes, key friction pairs such as the telescopic boom slide rails, boom-frame hinge pins, axle steering knuckles, and differential gears need to withstand cyclic impact loads and high-frequency reciprocating motion, resulting in a wear rate much higher than that of ordinary construction machinery. Therefore, timely lubrication of these key lubrication points is necessary. Insufficient lubrication may cause the oil film on the friction pair surface to rupture, leading to direct metal-to-metal contact wear, and in severe cases, jamming or breakage. Excessive lubrication, on the other hand, can cause excess grease to attract dust and form abrasive paste, accelerating the aging of seals and reducing the service life of parts. Uneven lubrication, such as some hidden lubrication points (e.g., internal boom pins and axle steering knuckles) being overlooked due to limited operating space for the driver, may cause localized stress concentration, leading to component damage and significant losses.

[0003] Currently, telescopic forklifts mainly rely on manual grease application. Every certain period of operation requires stopping the machine for inspection, visually checking for wear, and then using a handheld grease gun to apply grease to each lubrication point individually. Each process takes about an hour, which impacts operational efficiency. Furthermore, manual grease application depends on the operator's experience, making it easy to miss hidden lubrication points, leading to uneven lubrication and equipment malfunctions.

[0004] Therefore, it is necessary to develop new semi-automatic lubrication systems to overcome the problems of low operating efficiency and uneven lubrication in existing technologies. Utility Model Content

[0005] Purpose of the utility model: To address the shortcomings and defects of the existing technology, this utility model provides a semi-automatic lubrication system for telescopic boom forklifts. It adopts a centralized redistribution design concept, which brings each lubrication point to an easily accessible location and then connects it to a distributor. This allows the dispersed lubrication points to be concentrated into one distributor for grease application, making it more efficient and convenient, and overcoming the problems of low operating efficiency and uneven lubrication in the existing technology.

[0006] Technical solution: The present invention relates to a semi-automatic lubrication system for telescopic boom forklifts, characterized in that: it includes an electronic lubrication pump and a distributor connected to each other; the distributor is connected to a lubrication hose and a lubrication hard pipe through several distributor connectors; the lubrication hose and the lubrication hard pipe are provided with connector bodies and lubrication connectors; the lubrication hose and the lubrication hard pipe are positioned by clamps; the lubrication connectors are connected by bolts.

[0007] The electronic lubrication pump is connected to an external oil storage tank and is equipped with a controller.

[0008] The electronic lubrication pump is located on the rear side of the telescopic boom forklift frame and provides lubricating grease to different lubrication points of the vehicle through connection to two distributors.

[0009] Among them, the two distributors correspond to the lower axle section and the upper section, respectively.

[0010] The distributor in the lower axle section has a 12-port structure, corresponding to 4 lubrication points on the front axle and 6 on the rear axle, for a total of 10 lubrication points.

[0011] The distributor in the upper part has a 10-port structure, corresponding to 2 lubrication points on the rear pin of the boom, 2 lubrication points on the lower cylinder of the leveling cylinder, and 4 lubrication points on the upper and lower pins of the luffing cylinder, for a total of eight lubrication points.

[0012] The lubrication hard pipes include the lifting arm lubrication hard pipe, the leveling cylinder lubrication hard pipe, and the lifting arm rear pin lubrication hard pipe.

[0013] The lubrication joints of the lubrication hard tube of the rear pin of the crane boom are led to both sides of the front end of the boom.

[0014] Beneficial effects: Compared with the prior art, this utility model has the following significant advantages: This utility model solves the problem of scattered lubrication points by guiding the lubrication points that are difficult to lubricate to an easily accessible location and then concentrating them through a connecting distributor, so that each lubrication point can be effectively lubricated; by guiding the lubrication point at the steering knuckle of the axle to the side of the walkway, the problem of difficult lubrication due to tires is solved; by using an electric lubrication pump and a controller to precisely control the timing and metering of grease to each lubrication point, each lubrication point can be uniformly lubricated, saving labor and improving the efficiency of telescopic boom forklift operation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the lubrication rigid tube of this utility model;

[0017] Figure 3 This is a schematic diagram of the joint body and lubrication joint of this utility model;

[0018] Figure 4 This is a diagram showing the usage state of this utility model;

[0019] In the diagram, 1 is the electronic lubrication pump; 2 is the distributor; 3 is the lubrication hose; 4 is the distributor connector; 5 is the lubrication rigid pipe; 6 is the clamp; 7 is the bolt; 8 is the connector body; 9 is the lubrication connector; 10 is the lifting boom lubrication rigid pipe; 11 is the leveling cylinder lubrication rigid pipe; and 12 is the lifting boom rear pin lubrication rigid pipe. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0021] This utility model relates to a telescopic boom forklift: a multi-functional engineering vehicle equipped with a telescopic boom, mainly used for loading and unloading goods, stacking, high-altitude material handling, and short-distance transportation. The boom consists of multiple hydraulically driven telescopic sections. The extension and retraction of the boom are controlled by a hydraulic system, allowing for flexible adjustment of working height and distance. It has functions such as load-bearing, transportation, and off-road capability, and is widely used in industries such as construction, agriculture, logistics warehousing, and emergency rescue. Lubrication points: These refer to friction points on the telescopic boom forklift, such as the boom slide rails, boom-frame hinge pins, hydraulic cylinder pins, axle differential gears, and steering drive axle steering knuckles, which require regular grease application. Distributor: A device that precisely controls the amount of grease output through a solenoid valve or micro-pump. Electric lubrication pump: A grease pump that can be driven by DC or AC power, with an internal controller that distributes grease to various lubrication points at regular intervals and in precise quantities.

[0022] The present invention relates to a semi-automatic lubrication system for telescopic boom forklifts, comprising an electronic lubrication pump 1 and a distributor 2 connected to each other. The distributor 2 is connected to a lubrication hose 3 and a lubrication hard pipe 5 through several distributor connectors 4. The lubrication hose 3 and the lubrication hard pipe 5 are provided with connector bodies 8 and lubrication connectors 9. The lubrication hose 3 and the lubrication hard pipe 5 are positioned by clamps 6. The lubrication connectors 9 are connected by bolts 7.

[0023] The electronic lubrication pump 1 of this invention is connected to an external oil storage tank and is equipped with a controller. The electronic lubrication pump 1 is located on the rear side of the telescopic boom forklift frame and provides lubricating grease to different lubrication points throughout the vehicle via two distributors 2. The two distributors 2 correspond to the lower axle section and the upper axle section, respectively. The distributor 2 for the lower axle section has a 12-port structure, corresponding to 4 lubrication points on the front axle and 6 on the rear axle, for a total of 10 lubrication points. The distributor 2 for the upper axle section has a 10-port structure, corresponding to 2 lubrication points on the boom rear pin shaft, 2 lubrication points on the lower cylinder of the leveling cylinder, and 4 lubrication points on the upper and lower pin shafts of the luffing cylinder, for a total of eight lubrication points. The lubrication rigid pipes 5 include a boom lubrication rigid pipe 10, a leveling cylinder lubrication rigid pipe 11, and a boom rear pin shaft lubrication rigid pipe 12. The lubrication connectors 9 of the boom rear pin shaft lubrication rigid pipe 12 are led to both sides of the front end of the boom.

[0024] Due to the limited space, it is not easy to add grease to the internal pins of the telescopic boom. This system uses lubrication hoses to lead the lubrication points to both sides of the front end of the boom, and then connects them to the distributor. The distributor is directly connected to the electronic lubrication pump, which adds grease to the lubrication points in a timed and quantitative manner.

[0025] For the lubrication points at the steering knuckle of the axle, due to the assembly of the tire rim, these points are hidden inside the tire, making them inaccessible to manual personnel. This system uses a 6mm diameter hard lubrication tube to guide the lubrication points to the side of the walkway, and then connects to a distributor to solve the lubrication problem for a total of four lubrication points on both sides of the axle.

[0026] Since the lubrication point of the differential in the middle of the axle is located under the vehicle, it is inconvenient for the operator to manually add grease. This system leads the lubrication point to the side of the frame through a lubrication hose, and then connects to the distributor to add grease in a timed and quantitative manner through an electronic lubrication pump.

[0027] This system uses a 12V electronic lubrication pump for automatic oil supply. It can be connected to the electrical components in the cab, allowing for direct operation and grease application from the cab, saving labor and improving efficiency and reliability.

Claims

1. A semi-automatic lubrication system for a telescopic boom forklift truck, characterized by: It includes an interconnected electronic lubrication pump (1) and a distributor (2). The distributor (2) is connected to a lubrication hose (3) and a lubrication hard tube (5) through several distributor connectors (4). The lubrication hose (3) and the lubrication hard tube (5) are provided with connector bodies (8) and lubrication connectors (9). The lubrication hose (3) and the lubrication hard tube (5) are positioned by clamps (6). The lubrication connectors (9) are connected by bolts (7).

2. The semi-automatic lubrication system for a reach fork truck as set forth in claim 1, wherein: The electronic lubrication pump (1) is connected to an external oil storage tank, and the electronic lubrication pump (1) is equipped with a controller.

3. The semi-automatic lubrication system for a reach truck as claimed in claim 1, characterized in that: The electronic lubrication pump (1) is located on the rear side of the frame of the telescopic boom forklift and provides lubricating grease to different lubrication points of the vehicle by connecting two distributors (2).

4. The semi-automatic lubrication system for a reach truck as claimed in claim 3, characterized in that: The two distributors (2) correspond to the lower axle section and the upper section, respectively.

5. The semi-automatic lubrication system for a reach fork truck as set forth in claim 4, wherein: The distributor (2) of the lower axle section has a 12-port structure, corresponding to 4 lubrication points on the front axle and 6 on the rear axle, for a total of 10 lubrication points.

6. The semi-automatic lubrication system for a reach truck as claimed in claim 4, characterized in that: The distributor (2) of the upper part is a 10-port structure, corresponding to 2 lubrication points of the boom rear pin shaft, 2 lubrication points of the leveling cylinder lower cylinder, and 4 lubrication points of the luffing cylinder upper and lower pin shafts, for a total of eight lubrication points.

7. The semi-automatic lubrication system for a reach fork truck as set forth in claim 1, wherein: The lubrication hard pipe (5) includes a crane boom lubrication hard pipe (10), a leveling cylinder lubrication hard pipe (11), and a crane boom rear pin lubrication hard pipe (12).

8. The semi-automatic lubrication system for a reach truck as claimed in claim 7, characterized in that: The lubrication joint (9) of the lubrication hard tube (12) of the rear pin of the lifting boom is led to both sides of the front end of the boom.

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