Auxiliary measuring device for excavating mechanism of railway screen scarifier and railway screen scarifier

Abstract

The utility model discloses an excavating mechanism auxiliary measuring device of a railway screen scarifier and the railway screen scarifier. The auxiliary measuring device comprises a big arm oil cylinder pull rope sensor and a bucket wheel oil cylinder pull rope sensor. The big arm oil cylinder pull rope sensor is arranged above a cylinder barrel through a hoop, a pull rope fixing plate is arranged at the end part of a piston rod, and the pull rope end part of the big arm oil cylinder pull rope sensor is fixed on the pull rope fixing plate; the bucket-wheel oil cylinder pull rope sensor is installed under a bucket-wheel transverse-moving oil cylinder barrel through a hoop, a pull rope fixing plate is installed at the end of a piston rod of the bucket-wheel transverse-moving oil cylinder, the end of a pull rope of the bucket-wheel oil cylinder pull rope sensor is fixed to the pull rope fixing plate, and the straight line where the pull rope of the bucket-wheel oil cylinder pull rope sensor is located is parallel to the axis of the piston rod of the bucket-wheel transverse-moving oil cylinder. Under the condition that operation of an excavating mechanism of the railway screen scarifier is not affected, accurate and efficient auxiliary detection is achieved by arranging the pull rope sensor in the limited space of the railway screen scarifier.

Description

Technical Field

[0001] This utility model belongs to the field of traffic operation safety technology of large-scale road maintenance machinery, specifically relating to an auxiliary measuring device for the excavation mechanism of a railway screening machine and the railway screening machine itself. Background Technology

[0002] After long-term use, railway lines often suffer from soiled ballast and broken ballast, significantly impacting the condition and performance of the track. Therefore, cleaning is necessary using a railway ballast cleaning machine. This machine is a ballast cleaning device that performs functions such as ballast excavation, ballast conveying, vibrating screening, clean ballast backfilling, and sludge disposal. During operation, the excavating mechanism of the cleaning machine may swing outwards and encroach on adjacent tracks, potentially causing collisions with oncoming trains. Therefore, it is necessary to design an auxiliary measuring device for the excavating mechanism of the railway ballast cleaning machine to help operators monitor the real-time position of the excavating mechanism during operation. Summary of the Invention

[0003] The purpose of this utility model is to overcome the above-mentioned shortcomings of the prior art and to provide an auxiliary measuring device for the excavation mechanism of a railway screen cleaning machine and a railway screen cleaning machine. Without affecting the operation of the excavation mechanism of the railway screen cleaning machine, a precise and efficient auxiliary detection is achieved in the limited space of the railway screen cleaning machine by setting a rope sensor.

[0004] The technical solution of this utility model is: an auxiliary measuring device for the excavation mechanism of a railway cleaning machine, including a boom cylinder pull rope sensor 1 for detecting the extension and retraction of the boom lateral movement cylinder and a bucket wheel cylinder pull rope sensor for detecting the extension and retraction of the bucket wheel lateral movement cylinder.

[0005] The boom cylinder pull rope sensor is mounted on the top of the cylinder via a clamp. A pull rope fixing plate is installed at the end of the piston rod. The pull rope end of the boom cylinder pull rope sensor is fixed to the pull rope fixing plate. The straight line of the pull rope of the boom cylinder pull rope sensor is parallel to the piston rod axis of the boom lateral movement cylinder.

[0006] The installation method of the bucket wheel cylinder pull rope sensor is the same as that of the boom cylinder pull rope sensor. The bucket wheel cylinder pull rope sensor is installed directly below the cylinder of the bucket wheel lateral movement cylinder by clamps. The piston rod end of the bucket wheel lateral movement cylinder is equipped with a pull rope fixing plate. The pull rope end of the bucket wheel cylinder pull rope sensor is fixed to the pull rope fixing plate. The straight line of the pull rope of the bucket wheel cylinder pull rope sensor is parallel to the piston rod axis of the bucket wheel lateral movement cylinder.

[0007] The clamp includes two half-rings and connecting lugs at the ends of the two half-rings. Bolts installed on the connecting lugs at the ends of the two half-rings form a whole by the two half-rings surrounding the cylinder. One half-ring has a mounting block for fixing the bucket wheel cylinder pull rope sensor or the bucket wheel cylinder pull rope sensor.

[0008] The piston rod end of the boom lateral movement cylinder has a lug plate, and a rope fixing plate is installed on the lug plate. The rope fixing plate is fixed with rope clamps at both ends.

[0009] The boom cylinder cable sensor is covered with a protective cover.

[0010] The piston rod of the boom lateral movement cylinder is hinged to the crankshaft mounted on the crankshaft mounting seat, and the cylinder barrel of the boom lateral movement cylinder is hinged to the boom cylinder mounting seat on the vehicle body via a pin shaft; the cylinder barrel of the bucket wheel lateral movement cylinder is hinged to the bucket wheel cylinder mounting seat on the forearm, and the piston rod of the bucket wheel lateral movement cylinder is hinged to the bucket wheel cylinder mounting seat on the bucket wheel support bracket.

[0011] A railway cleaning and screening machine includes a car body and an excavating mechanism. The car body includes a frame, and the excavating mechanism includes a bucket wheel support bracket and a bucket wheel disposed outside the bucket wheel support bracket. The bucket wheel support bracket is characterized in that: the bucket wheel support bracket is connected to the car body via a boom; the upper end of the boom is hinged to a forearm, the forearm is hinged to the bucket wheel support bracket, the lower end of the boom is hinged to a support, and the support is hinged to the car body. The support is hinged via a crankshaft to the piston rod of a boom lateral movement cylinder used to push the boom to swing; the cylinder barrel of the boom lateral movement cylinder is hinged to a boom cylinder mounting seat on the frame; one end of the bucket wheel lateral movement cylinder used to push the bucket wheel support bracket to swing relative to the boom is mounted on the bucket wheel support bracket, and the other end is mounted on the forearm; the excavating mechanism also includes the aforementioned auxiliary measuring device.

[0012] The bucket wheel cylinder pull rope sensor is clamped and mounted directly below the cylinder barrel of the bucket wheel lateral movement cylinder. The lateral movement cylinder protects the pull rope sensor from being struck by falling rocks, thus preventing it from affecting its detection accuracy, even without a protective cover. In this invention, the use of a pull rope sensor improves detection accuracy and avoids the inaccuracy caused by interference when using ultrasonic sensors. The clamped mounting of the displacement sensor eliminates the need for direct welding to the outer wall of the cylinder barrel, thereby avoiding the impact of welding on the piston rod's movement accuracy. Attached Figure Description

[0013] The present invention will now be described in further detail with reference to the embodiments provided in the accompanying drawings.

[0014] Figure 1 This is a schematic diagram of the structure of the railway screen cleaning machine of this utility model;

[0015] Figure 2 This is a schematic diagram of the excavation mechanism of this utility model;

[0016] Figure 3 for Figure 2 Top view;

[0017] Figure 4 for Figure 2 Rear view;

[0018] Figure 5 This is a schematic diagram of the installation of the boom lateral movement cylinder;

[0019] Figure 6 This is an installation diagram of the boom cylinder cable sensor of this utility model;

[0020] Figure 7 This is a structural diagram of the clamp of this utility model;

[0021] Figure 8 for Figure 7 Side view. Detailed Implementation

[0022] Figure 1 In the diagram, 91 is the boom lifting cylinder, fixed to the boom lifting cylinder mounting seat 92 and the boom 10 on the side of the vehicle body, controlling the lifting and lowering of the boom 10. The excavating mechanism includes a bucket wheel support bracket 112 and a bucket wheel 11 located outside the bucket wheel support bracket 112. The bucket wheel support bracket 112 is connected to the vehicle body via the boom 10. The upper end of the boom 10 is hinged to the forearm 12, and the forearm 12 is hinged to the bucket wheel support bracket 112. The lower end of the boom 10 is hinged to the support 9, and the support 9 and crankshaft mounting seat 205 are mounted on the vehicle frame. The boom cylinder pull rope sensor 1 is mounted above the cylinder 202 via a clamp 2. A pull rope fixing plate 3 is installed at the end of the piston rod 201. The pull rope end of the boom cylinder pull rope sensor 1 is fixed to the pull rope fixing plate 3. The straight line of the pull rope of the boom cylinder pull rope sensor 1 is parallel to the piston rod axis of the boom lateral movement cylinder. The installation method of the bucket wheel cylinder pull rope sensor 4 is the same as that of the boom cylinder pull rope sensor 1. The bucket wheel cylinder pull rope sensor is installed directly below the cylinder of the bucket wheel lateral movement cylinder 40 via a clamp. The piston rod end of the bucket wheel lateral movement cylinder 40 is equipped with a pull rope fixing plate. The pull rope end of the bucket wheel cylinder pull rope sensor is fixed to the pull rope fixing plate. The straight line of the pull rope of the bucket wheel cylinder pull rope sensor is parallel to the piston rod axis of the bucket wheel lateral movement cylinder 40. The clamp 2 includes two half rings and connecting ears at the ends of the two half rings. Bolts installed at the connecting ears at the ends of the two half rings form a whole by the two half rings surrounding the cylinder. One half ring has a mounting block 21 for fixing the boom cylinder pull rope sensor 1 or the bucket wheel cylinder pull rope sensor 4. The piston rod 201 of the boom lateral movement cylinder has an ear plate at its end. The ear plate is equipped with a pull rope fixing plate 3. The pull rope is fixed at both ends of the pull rope fixing plate 3 with rope clamps.

[0023] Figure 2-8In this design, the piston rod 201 of the boom lateral movement cylinder 20 is hinged to the crankshaft mounted on the crankshaft mounting seat. The cylinder barrel 202 of the boom lateral movement cylinder is hinged to the boom cylinder mounting seat 206 on the frame A via a pin 203. Clamps 2 are installed at the cylinder barrels of the boom lateral movement cylinder and the bucket wheel lateral movement cylinder. The boom cylinder pull rope sensor 1 and the bucket wheel cylinder pull rope sensor 4 are respectively installed on the clamps 2 to measure the extension and retraction of the boom lateral movement cylinder and the bucket wheel lateral movement cylinder. Pull rope fixing plates 3 are installed at the piston rod lugs of the boom lateral movement cylinder and the bucket wheel lateral movement cylinder. The ends of the pull ropes of the boom cylinder pull rope sensor 1 and the bucket wheel cylinder pull rope sensor 4 are fixed to the pull rope fixing plates 3. One set of clamps 2 and pull rope fixing plates 3 is installed on the cylinder barrel and piston rod lugs of the boom lateral movement cylinder, and the other set is installed on the cylinder barrel and piston rod lugs of the bucket wheel lateral movement cylinder. Among them, 111 is the boom pitch adjustment cylinder. The boom cylinder cable sensor 1 is covered by a protective cover. The protective cover is made of patterned aluminum plate and includes a vertical plate and a horizontal plate connected to the end of the vertical plate. The vertical plate is fixed to the frame. The protective cover serves to protect the boom cylinder cable sensor from being hit by gravel in harsh working environments. The piston rod 201 of the boom lateral movement cylinder is hinged to the crankshaft 204 mounted on the crankshaft mounting seat 205. The cylinder barrel 202 of the boom lateral movement cylinder is hinged to the boom cylinder mounting seat 206 on the vehicle body via the pin shaft 203. The cylinder barrel of the bucket wheel lateral movement cylinder 40 is hinged to the bucket wheel cylinder mounting seat of the boom 12. The piston rod of the bucket wheel lateral movement cylinder 40 is hinged to the bucket wheel cylinder mounting seat on the bucket wheel support bracket 112.

Claims

1. An auxiliary measuring device for the excavation mechanism of a railway screening machine, characterized in that: Includes a boom cylinder cable sensor (1) for detecting the extension and retraction of the boom lateral movement cylinder (20) and a bucket wheel cylinder cable sensor for detecting the extension and retraction of the bucket wheel lateral movement cylinder (40); The boom cylinder pull rope sensor (1) is mounted on the cylinder (202) via clamp (2). The piston rod (201) end is equipped with a pull rope fixing plate (3). The pull rope end of the boom cylinder pull rope sensor (1) is fixed on the pull rope fixing plate (3). The straight line of the pull rope of the boom cylinder pull rope sensor (1) is parallel to the piston rod axis of the boom transverse cylinder. The installation method of the bucket wheel cylinder pull rope sensor is the same as that of the boom cylinder pull rope sensor (1). The bucket wheel cylinder pull rope sensor is installed directly below the cylinder of the bucket wheel transverse cylinder (40) by clamp. The piston rod end of the bucket wheel transverse cylinder (40) is equipped with a pull rope fixing plate. The pull rope end of the bucket wheel cylinder pull rope sensor is fixed on the pull rope fixing plate. The straight line of the pull rope of the bucket wheel cylinder pull rope sensor is parallel to the piston rod axis of the bucket wheel transverse cylinder (40).

2. The auxiliary measuring device for the excavation mechanism of the railway cleaning and screening machine according to claim 1, characterized in that: The clamp (2) includes two half rings and connecting ears at the ends of the two half rings. Bolts installed on the connecting ears at the ends of the two half rings form a whole with the two half rings surrounding the cylinder. One half ring has a mounting block for fixing the bucket wheel cylinder pull rope sensor (4) or the bucket wheel cylinder pull rope sensor (4).

3. The auxiliary measuring device for the excavation mechanism of the railway cleaning and screening machine according to claim 1, characterized in that: The piston rod (201) of the boom lateral movement cylinder has an ear plate at its end, and a rope fixing plate (3) is installed on the ear plate. The rope fixing plate (3) is fixed with rope clamps at both ends.

4. The auxiliary measuring device for the excavation mechanism of the railway cleaning and screening machine according to claim 1, characterized in that: The boom cylinder cable sensor (1) is covered with a protective cover.

5. The auxiliary measuring device for the excavation mechanism of the railway cleaning and screening machine according to claim 1, characterized in that: The piston rod (201) of the boom lateral movement cylinder is hinged to the crankshaft (204) mounted on the crankshaft mounting seat (205), and the cylinder barrel (202) of the boom lateral movement cylinder is hinged to the boom cylinder mounting seat (206) on the vehicle body via the pin shaft (203); the cylinder barrel of the bucket wheel lateral movement cylinder (40) is hinged to the bucket wheel cylinder mounting seat of the boom (12), and the piston rod of the bucket wheel lateral movement cylinder (40) is hinged to the bucket wheel cylinder mounting seat on the bucket wheel support bracket (112).

6. A railway cleaning and screening machine, comprising a car body and an excavating mechanism, wherein the car body includes a frame, and the excavating mechanism includes a bucket wheel support bracket (112) and a bucket wheel (11) disposed outside the bucket wheel support bracket (112), characterized in that: The bucket wheel support bracket (112) is connected to the vehicle body via the boom (10). The upper end of the boom (10) is hinged to the forearm (12), and the forearm (12) is hinged to the bucket wheel support bracket (112). The lower end of the boom (10) is hinged to the support (9), and the support (9) is hinged to the vehicle body. The support (9) is hinged to the piston rod (201) of the boom lateral movement cylinder (20) used to push the boom (10) to swing via the crankshaft. The cylinder barrel (202) of the boom lateral movement cylinder is hinged to the boom cylinder mounting seat (206) on the vehicle frame. One end of the bucket wheel lateral movement cylinder (40) used to push the bucket wheel support bracket (112) to swing relative to the boom (10) is mounted on the bucket wheel support bracket (112), and the other end is mounted on the forearm (12). The excavation mechanism also includes the auxiliary measuring device as described in any one of claims 1-2.

Images