Excavator with installation protection device

Abstract

The utility model relates to the technical field of engineering machinery, in particular to an excavator with an installation protection device. The excavator provided with the installation protection device comprises a caterpillar band, a machine base, driving rollers, a cab, a first connecting arm, a second connecting arm, a pin shaft and a bucket, the two driving rollers are installed on the machine base, the caterpillar band is jointly installed on the two driving rollers, the cab is installed on the machine base, and the first connecting arm and the second connecting arm are connected through the pin shaft. A first connecting arm is rotationally arranged on one side of the machine base, a pin shaft is fixedly connected to the end, away from the machine base, of the first connecting arm, a second connecting arm is rotationally arranged between the two ends of the pin shaft, and a bucket is rotationally arranged at the end, away from the first connecting arm, of the second connecting arm. When the excavator is used, the telescopic rod of the hydraulic push rod is controlled to enable the bucket to rotate towards the rear side to conduct digging operation, the sliding rail and the sliding baffle protect the hydraulic push rod, objects are prevented from falling and impacting the hydraulic push rod during digging operation, and the hydraulic push rod is prevented from being damaged due to impact.

Description

Technical Field

[0001] The utility model relates to the technical field of engineering machinery, in particular to an excavator provided with a mounting protection device. Background Art

[0002] An excavator, also known as an excavating machine or a backhoe, is an earth-moving machine that uses a bucket to dig materials above or below the supporting surface and load them into transport vehicles or unload them to stockpiles. The materials excavated by the excavator are mainly soil, coal, silt, and pre-loosened soil and rocks. It is one of the most important engineering machinery in engineering construction.

[0003] When the excavator controls the bucket to work, the hydraulic cylinder drives the bucket to pick up and unload materials. The hydraulic push rods are directly exposed to the outside. During the operation of the excavator, the cylinder is easily damaged by the impact of objects such as stones, and even explodes, causing the excavator bucket to lose power.

[0004] Therefore, it is necessary to design an excavator with an installation protection device. Utility Model Content

[0005] In order to overcome the disadvantages that hydraulic push rods are directly exposed to the outside, and the oil cylinder is easily damaged by impacts of objects such as stones during the operation of the excavator, or even explodes, causing the excavator bucket to lose power, the utility model provides an excavator with an installation protection device.

[0006] The technical scheme of the utility model is: an excavator provided with an installation protection device, comprising a crawler, a machine base, a driving roller, a cab, a first connecting arm, a second connecting arm, a pin shaft, a bucket and a hydraulic push rod, two driving rollers are installed on the machine base, the crawler is installed on the two driving rollers, the cab is installed on the machine base, the first connecting arm is rotatably arranged on one side of the machine base, the first connecting arm is fixedly connected with a pin shaft at one end away from the machine base, the second connecting arm is rotatably arranged between the two ends of the pin shaft, the bucket is rotatably arranged at one end of the second connecting arm away from the first connecting arm, a hydraulic push rod is installed on one side of the second connecting arm, the telescopic rod of the hydraulic push rod is rotatably connected to the bucket, and also comprises a slide rail, a sliding baffle and a mounting bolt, two slide rails are installed on one side of the second connecting arm, a sliding baffle is slidably arranged between the two slide rails, the sliding baffle blocks the hydraulic push rod, the sliding baffle is penetrated by mounting bolts, and the mounting bolts are threadedly connected to the second connecting arm.

[0007] In one of the embodiments, it also includes a hatch, a first tempered glass and a second tempered glass. The hatch is rotatably arranged on one side of the cab, the second tempered glass is installed on the hatch, and the first tempered glass is installed on the side of the cab close to the bucket.

[0008] In one of the embodiments, it also includes a first metal protective net, fixing bolts and a second metal protective net. The first metal protective net is installed on the side of the cab close to the bucket through multiple fixing bolts, and the first metal protective net protects the first tempered glass. The second metal protective net is fixed to the hatch and covers the cab.

[0009] In one of the embodiments, an infrared detector and an alarm are also included. The infrared detector and the alarm are installed on a side of the machine base away from the bucket, and the alarm is electrically connected to the infrared detector.

[0010] In one of the embodiments, a protective shell is also included, and the two ends of the two driving rollers are jointly installed with the protective shell.

[0011] In one of the embodiments, a scraper is also included. Scrapers are installed on both sides of the machine base and are located above the crawler belt.

[0012] The beneficial effects of the utility model are as follows: 1. When using an excavator, the bucket is rotated backward to perform digging operations by controlling the telescopic rod of the hydraulic push rod. The slide rail and the sliding baffle protect the hydraulic push rod to prevent objects from falling and hitting the hydraulic push rod during the digging operation, thereby preventing the hydraulic push rod from being damaged by the impact.

[0013] 2. The first tempered glass and the second tempered glass prevent objects from hitting the cab from the front and side respectively, preventing the driver in the cab from being injured by the impact.

[0014] 3. The first metal protective net and the second metal protective net intercept objects in front of and on the sides of the cab respectively to prevent objects from directly impacting the cab, thereby improving the safety of the driver in the cab. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0016] Figure 2 It is a three-dimensional cross-sectional structural schematic diagram of the engine base, the cab and the cabin door of the utility model.

[0017] Figure 3 It is a three-dimensional cross-sectional structural schematic diagram of the utility model bucket, hydraulic push rod and slide rail.

[0018] Figure 4 It is a schematic diagram of the three-dimensional cross-sectional structure of the first metal protection net, the cab and the second metal protection net of the utility model.

[0019] Figure 5 The utility model is a three-dimensional cross-sectional structural schematic diagram of the infrared detector and the alarm.

[0020] Marked in the figure: 1_track, 2_machine base, 201_drive roller, 3_cab, 4_door, 5_first tempered glass, 6_second tempered glass, 7_first connecting arm, 8_second connecting arm, 9_pin shaft, 10_bucket, 11_hydraulic push rod, 12_slide rail, 13_sliding baffle, 14_mounting bolt, 15_first metal protective net, 16_fixing bolt, 17_second metal protective net, 18_infrared detector, 19_alarm, 20_protective shell, 21_scraper. DETAILED DESCRIPTION

[0021] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.

[0022] Embodiment 1: An excavator provided with a mounting protection device, see Figure 1-Figure 3 As shown, it includes a crawler 1, a machine base 2, a driving roller 201, a cab 3, a first connecting arm 7, a second connecting arm 8, a pin shaft 9, a bucket 10 and a hydraulic push rod 11. Two driving rollers 201 are symmetrically installed on the front and rear sides of the lower part of the machine base 2. The crawler 1 is commonly installed on the two driving rollers 201. Protective shells 20 are commonly installed at both ends of the two driving rollers 201. The protective shells 20 are used to protect the driving rollers 201 to prevent the driving rollers 201 from being bumped when the excavator is moving. Scrapers 21 are installed on both sides of the machine base 2. The scrapers 21 are located above the crawler 1. The scrapers 21 are used to scrape off the mud attached to the crawler 1 to prevent the mud on the crawler 1 from slipping due to excessive thickness. The cab 3 is installed on the machine base 2. The first connecting arm 7 is rotatably provided on one side of the machine base 2. One end of the connecting arm 7 away from the machine base 2 is fixedly connected with a pin shaft 9 by a key connection, a second connecting arm 8 is rotatably arranged between the two ends of the pin shaft 9, a bucket 10 is rotatably arranged at the lower end of the second connecting arm 8, a hydraulic push rod 11 is installed on the front side of the second connecting arm 8 by bolt connection, the telescopic rod of the hydraulic push rod 11 is rotatably connected to the bucket 10, two slide rails 12 are installed on the front side of the second connecting arm 8 by bolt connection, a sliding baffle 13 is slidably arranged between the two slide rails 12, the sliding baffle 13 blocks the hydraulic push rod 11, a mounting bolt 14 passes through the sliding baffle 13, the mounting bolt 14 is threadedly connected to the second connecting arm 8, and after the sliding baffle 13 slides between the two slide rails 12, the sliding baffle 13 is limited by the mounting bolt 14.

[0023] When using the excavator, the driver enters the cab 3 and controls the driving roller 201 to drive the crawler 1 to move on the ground until the excavator moves to the working area, and then controls the first connecting arm 7 to rotate, and the second connecting arm 8 to rotate with the pin shaft 9 as the axis, so that the bucket 10 is aimed at the object to be excavated, and then controls the telescopic rod of the hydraulic push rod 11 to contract to make the bucket 10 rotate backward to perform the excavation operation. When performing the excavation operation, the hydraulic push rod 11 is protected by the slide rail 12 and the sliding baffle 13 to prevent objects from falling and hitting the hydraulic push rod 11 during the excavation operation, and prevent the hydraulic push rod 11 from being damaged by the impact.

[0024] Example 2: Based on Example 1, refer to Figure 2 and Figure 4 As shown, it also includes a hatch 4, a first tempered glass 5 and a second tempered glass 6. The hatch 4 is rotatably arranged on the right side of the cab 3, the second tempered glass 6 is embedded in the upper part of the hatch 4, and the first tempered glass 5 is embedded in the front side of the cab 3.

[0025] The cab 3 is opened by rotating the hatch 4 outward, and the first tempered glass 5 prevents objects from hitting the cab 3 from the front, preventing the driver in the cab 3 from being injured by the frontal impact. The second tempered glass 6 prevents objects from hitting the hatch 4 of the cab 3 from the side, preventing the driver in the cab 3 from being injured by the frontal impact.

[0026] See also Figure 4 As shown, it also includes a first metal protection net 15, fixing bolts 16 and a second metal protection net 17. The first metal protection net 15 and the second metal protection net 17 are made of oil-quenched and tempered silicon-manganese steel wire, which has high strength and good elasticity. The first metal protection net 15 is installed on the side of the cab 3 close to the bucket 10 through multiple fixing bolts 16 to protect the first tempered glass 5. The second metal protection net 17 is fixed to the hatch 4 to cover the cab 3.

[0027] When an object falls and hits the cab 3 , the first metal protection net 15 and the second metal protection net 17 respectively intercept the object on the front and side of the cab 3 to prevent the object from directly hitting the cab 3 , thereby improving the safety of the driver in the cab 3 .

[0028] See also Figure 5 As shown, an infrared detector 18 and an alarm 19 are also included. The infrared detector 18 and the alarm 19 are installed on the rear side of the base 2 by bolt connection. The alarm 19 is electrically connected to the infrared detector 18.

[0029] During the operation of the excavator, the infrared detector 18 detects the blind area behind the machine base 2. When an obstacle is detected in the blind area behind the machine base 2, the alarm 19 sounds an alarm to remind the driver that there is an obstacle in the blind area behind the machine base 2.

[0030] Although the utility model is described in detail with reference to the above embodiments, it is obvious to those skilled in the art through this disclosure that various changes or modifications can be made to the utility model without departing from the principle and spirit of the utility model defined by the claims. Therefore, the detailed description of the embodiments of the present disclosure is only used to explain, not to limit the utility model, but the scope of protection is limited by the content of the claims.

Claims

1. An excavator provided with an installation protection device, comprising a crawler (1), a machine base (2), a driving roller (201), a cab (3), a first connecting arm (7), a second connecting arm (8), a pin shaft (9), a bucket (10) and a hydraulic push rod (11), wherein two driving rollers (201) are installed on the machine base (2), the crawler (1) is installed on the two driving rollers (201), the cab (3) is installed on the machine base (2), a first connecting arm (7) is rotatably arranged on one side of the machine base (2), a pin shaft (9) is fixedly connected to one end of the first connecting arm (7) away from the machine base (2), a second connecting arm (8) is rotatably arranged between two ends of the pin shaft (9), a bucket (10) is rotatably arranged on one end of the second connecting arm (8) away from the first connecting arm (7), a hydraulic push rod (11) is installed on one side of the second connecting arm (8), and a telescopic rod of the hydraulic push rod (11) is rotatably connected to the bucket (10), characterized in that: It also includes a slide rail (12), a sliding baffle (13) and a mounting bolt (14). Two slide rails (12) are installed on one side of the second connecting arm (8). A sliding baffle (13) is slidably arranged between the two slide rails (12). The sliding baffle (13) blocks the hydraulic push rod (11). The sliding baffle (13) is penetrated by a mounting bolt (14), and the mounting bolt (14) is threadedly connected to the second connecting arm (8).

2. An excavator provided with a mounting protection device according to claim 1, characterized in that: The invention also comprises a hatch (4), a first tempered glass (5) and a second tempered glass (6); the hatch (4) is rotatably arranged on one side of the cab (3); the second tempered glass (6) is installed on the hatch (4); and the first tempered glass (5) is installed on the side of the cab (3) close to the bucket (10).

3. An excavator provided with a mounting protection device as claimed in claim 2, characterized in that: The invention also comprises a first metal protection net (15), fixing bolts (16) and a second metal protection net (17); the first metal protection net (15) is installed on a side of the cab (3) close to the bucket (10) through a plurality of fixing bolts (16); the first metal protection net (15) protects the first tempered glass (5); the hatch (4) is fixedly connected with a second metal protection net (17); the second metal protection net (17) covers the cab (3).

4. An excavator provided with a mounting protection device according to claim 1, characterized in that: It also includes an infrared detector (18) and an alarm (19). The infrared detector (18) and the alarm (19) are installed on the side of the machine base (2) away from the bucket (10), and the alarm (19) is electrically connected to the infrared detector (18).

5. The excavator provided with a mounting protection device according to claim 1, characterized in that: It also includes a protective shell (20), and the two ends of the two driving rollers (201) are both equipped with the protective shell (20).

6. An excavator provided with a mounting protection device according to claim 1, characterized in that: It also includes a scraper (21), which is installed on both sides of the machine base (2) and is located above the crawler (1).

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