Limiting device for car pressing device of car dumper and car pressing device
By designing the lower limit sensor and upper limit sensor of the hexahedral hollow channel steel with an inclined setting, the problem of easy damage to the limit device of the vehicle press by the overturning machine is solved, and the accurate limit of the vehicle press position and safe and reliable reversing and unloading operation are achieved.
Patent Information
- Application Number
- CN202421832935.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-31
- Publication Date
- 2025-08-26
- Estimated Expiration
- 2034-07-31
AI Technical Summary
The existing overturner press limiting device is prone to overrunning the lifting action, resulting in damage to the sensor and affecting the efficiency and safety of the overturning and unloading operation.
The lower limit sensor and upper limit sensor are designed as hexahedral hollow channel steel, with the material being Q345 steel, and are set inclined to partially enter the structural gap between the presser and the overturner, reducing the chance of inductor damage, and cooperating with the proximity switch to determine the position of the presser.
Effectively prevent over-travel of the vehicle press, reduce the risk of sensor damage, and improve the safety and efficiency of reversing and unloading operations.
Smart Images
Figure CN223267946U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of car tippers, and in particular relates to a car press limiting device and a car press of a car tipper. Background Art
[0002] Train cars loaded with coal and other materials are typically unloaded automatically using car dumpers. Numerous car dumper models exist. For example, the "Dual-Line, Double-Dumping 'C'-Type Car Dumper System (CD1 / CD2)" can dump cars including the C80B, C63, C70, C70E, and C64. During unloading, each train uses four sets of hydraulic car hold-down devices. These hydraulically operated car hold-down devices feature hydraulic locking devices and energy absorption systems to absorb the energy released by the car's springs after unloading. The car hold-down device layout can accommodate different car models, including the C80B, C63, C70, C70E, and C64.
[0003] like Figure 1 As shown, the car press 1 is located in the car support plate 3, and one side of the car support plate 3 is supported by the car support plate driving cylinder 4 so as to be close to the car body 7 on the other side. The car press beam driving cylinder 2 can drive the car press 1 to move upward to make the car press beam 5 leave the car body 6 of the car body 7, and can also drive the car press 1 to move downward to make the car press beam 5 press the car body 6 of the car body 7. When the car press beam driving cylinder 2 drives the car press 1 to move upward and downward, there is an upper and lower limit position. If the movement exceeds the upper and lower limit positions, it is easy to cause damage to the car press beam 5. Therefore, a limit device is required to limit the up and down movement distance of the car press beam 5.
[0004] The car press limit device usually takes the form of a sensor triggering a proximity switch. The sensing device is installed on the car press structure, and the proximity switch is installed on the tipper body. When the car press is raised or lowered, the sensor triggers the proximity switch and feeds back a signal to the control system, thereby controlling the lifting position of the car press.
[0005] In the prior art, the car press with the above-mentioned limit device often has the problem of overtravel of the car press lifting action, which causes damage to the sensor and proximity switch, affecting the efficiency and safety of the dumping operation. Utility Model Content
[0006] The purpose of this application is to overcome the defect that the existing car press is prone to overtravel in the lifting action.
[0007] In order to achieve the above-mentioned purpose, the present application proposes a limit device for a car dumper press, which is used to limit the up and down movement range of the car press, and the limit device includes a lower limit sensor, an upper limit sensor and a proximity switch;
[0008] The lower limit sensor is fixed on the side of the car press, and its height is when the car press reaches the maximum lower limit position when the lower limit sensor and the proximity switch are on the same horizontal plane;
[0009] The upper limit sensor is fixed on the side of the car press, and its height is such that when the upper limit sensor and the proximity switch are on the same horizontal plane, the car press reaches the maximum upper limit position;
[0010] The proximity switch is fixed in position;
[0011] The lower limit sensor and the upper limit sensor are hexahedral hollow channel steels, the upper surface of which is a horizontal plane and the lower surface is hollow. A pair of the four side surfaces form a certain angle with the upper surface, so that the area of the upper surface is smaller than that of the lower surface.
[0012] As an improvement to the above-mentioned limiting device, the lower surfaces of the lower limit sensor and the upper limit sensor face the side surfaces of the vehicle press; and the side surfaces forming a certain angle with the upper surface are at upper and lower positions.
[0013] As an improvement to the above-mentioned limiting device, the lower limit sensor and the upper limit sensor are both made of Q345 steel.
[0014] As an improvement to the above-mentioned limiting device, the thickness of the upper surface and each side surface of the lower limit sensor and the upper limit sensor is 8 mm.
[0015] As an improvement to the above-mentioned limiting device, one or two lower limit sensors and upper limit sensors are respectively fixed on the sides of the vehicle press.
[0016] The present application also provides a car press, comprising the above-mentioned car press limiting device for a tipping machine.
[0017] Compared with the prior art, the advantages of this application are:
[0018] 1. The upper and lower limit sensors have inclined guide planes, so that when the car press exceeds the travel, the sensors can partially enter the gap between the car press and the tipper body structure, thereby reducing the chance of sensor damage;
[0019] 2. Compared with the original sensor, the new limit device sensor has high strength, which can avoid the overtravel failure of the car press caused by sensor deformation. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 The figure shows a schematic diagram of the car presser pressing the car side;
[0021] Figure 2 The figure shows the schematic diagram of the installation of the limit device on the car press;
[0022] Figure 3 Shown is the structure diagram of the lower limit sensor and the upper limit sensor.
[0023] Figure ID:
[0024] 1. Car press 2. Car press beam drive cylinder
[0025] 3. Car support plate 4. Car support plate drive cylinder
[0026] 5. Press beam 6. Carriage side
[0027] 7. Carriage 8. Lower limit sensor
[0028] 9. Upper limit sensor 10. Proximity switch DETAILED DESCRIPTION
[0029] The technical solution of this application is described in detail below with reference to the accompanying drawings.
[0030] The applicant has found that when the car press lifting action overtravel failure occurs, the limiter is often damaged. Further research has found that when the car press lifting action overtravel failure usually occurs, it is because the limiter is damaged first, which causes the car press lifting action to overtravel.
[0031] Because the car body is heavily loaded during unloading, the various components of the car tipper are subjected to significant stress. When these components come into contact or collide, the more fragile components are the first to deform or damage, causing the device to which they belong to to malfunction. The limiter device consists of two components: a sensor and a proximity switch. The proximity switch is fixed in position and unlikely to come into contact with other parts, while the sensor rises and falls with the car press, making it susceptible to contact or collision with other components during movement, causing deformation or damage.
[0032] In existing limit devices, the sensor is an L-shaped steel channel, one side of which is fixed to the car press and the other side is perpendicular to the side of the car press. It works with a proximity switch to monitor the upper and lower positions of the car press. The shape of the existing sensor makes it thin and easily deformed under stress, thus affecting the function of the limit device.
[0033] Example 1
[0034] like Figure 2 As shown, the present application provides a tipping machine press limit device including a lower limit sensor 8, an upper limit sensor 9 and a proximity switch 10.
[0035] The lower limit sensor 8 is fixed on the side of the car press 1, located between the car press 1 and the car support plate 3, and its height is when the lower limit sensor 8 and the proximity switch 10 are on the same horizontal plane and the car press 1 reaches the maximum lower limit position.
[0036] The upper limit sensor 9 is fixed on the side of the car press 1, and its height is such that the car press 1 reaches the maximum upper limit position when the upper limit sensor 9 and the proximity switch 10 are located at the same horizontal plane.
[0037] The proximity switch 10 is fixed in position and does not move with the movement of the car press 1. The proximity switch 10 can be used in conjunction with the lower limit sensor 8 and the upper limit sensor 9 to determine the position of the car press 1 by electromagnetic induction, photoelectric effect, microwave or the like.
[0038] like Figure 3 As shown, lower limit sensor 8 and upper limit sensor 9 are hexahedral hollow channel steels with a horizontal top surface and a hollow bottom surface. One pair of opposing side surfaces is perpendicular to the top surface, while the other pair of side surfaces is angled with the top surface, making the top surface area smaller than the bottom surface area. Both lower limit sensor 8 and upper limit sensor 9 are made of Q345 steel, with a top surface and side surface thickness of 8 mm.
[0039] During installation, the lower surfaces of the lower limit sensor 8 and the upper limit sensor 9 face the side surfaces of the vehicle press 1 , and the side surfaces forming a certain angle with the upper surface are located at upper and lower positions.
[0040] One or two lower limit sensors 8 and upper limit sensors 9 can be fixed on the side of the car press 1 respectively.
[0041] Example 2
[0042] The present application also provides a car press, comprising the above-mentioned car press limiting device.
[0043] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of this application and are not intended to limit the scope of the present invention. Although this application has been described in detail with reference to the embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions to the technical solutions of this application do not depart from the spirit and scope of the technical solutions of this application and should be encompassed by the claims of this application.
Claims
1. A limit device for a car dumper press, used for limiting the upward and downward movement range of the car press (1), the limit device comprising a lower limit sensor (8), an upper limit sensor (9) and a proximity switch (10); The lower limit sensor (8) is fixed on the side of the car press (1), and its height is such that when the lower limit sensor (8) and the proximity switch (10) are located at the same horizontal plane, the car press (1) reaches the maximum lower limit position; The upper limit sensor (9) is fixed on the side of the car press (1), and its height is such that when the upper limit sensor (9) and the proximity switch (10) are located at the same horizontal plane, the car press (1) reaches the maximum upper limit position; The proximity switch (10) is fixed in position; It is characterized in that The lower limit sensor (8) and the upper limit sensor (9) are hexahedral hollow channel steels, the upper surface of which is a horizontal plane and the lower surface is hollowed out, and one pair of the four side surfaces forms a certain angle with the upper surface, so that the area of the upper surface is smaller than the area of the lower surface.
2. The tipper press limiting device according to claim 1, characterized in that: The lower surfaces of the lower limit sensor (8) and the upper limit sensor (9) face the side surfaces of the vehicle press (1); and the side surfaces forming a certain angle with the upper surface are located at upper and lower positions.
3. The tipper press limiting device according to claim 1, characterized in that: The lower limit sensor (8) and the upper limit sensor (9) are both made of Q345 steel.
4. The tipper press limiting device according to claim 1, characterized in that: The thickness of the upper surface and each side surface of the lower limit sensor (8) and the upper limit sensor (9) is 8 mm.
5. The tipper press limiting device according to claim 1, characterized in that: One or two lower limit sensors (8) and upper limit sensors (9) are respectively fixed on the side of the vehicle pressing device (1).
6. A car press, characterized in that: It comprises the tipping machine press limiting device as described in any one of claims 1-5.