Submarine wheel set lifting and conveying trolley

Abstract

The utility model belongs to the technical field of rail transit mechanical equipment, and particularly discloses a submarine wheel set lifting and conveying trolley which comprises a frame, a driving wheel set arranged in front of the lower portion of the frame, and a driven wheel set arranged behind the lower portion of the frame and parallel to the driving wheel set. The supporting plate is arranged on the upper surface of the lifting bracket, the oil cylinder is fixed in the middle of the frame, the output end of the oil cylinder is connected with the lifting bracket, and the lifting bracket moves up and down under the driving of the oil cylinder; the gear motor drives the trolley to reciprocate along the track. The lifting and conveying device is suitable for various types of railway wagon wheel sets, is stable and reliable in lifting and conveying action, is mounted on various types of wheel lathe type machine tools, and is connected with a wheel set conveying line, a manipulator and the like.

Description

Technical Field

[0001] This utility model belongs to the technical field of rail transit machinery and equipment, and relates to a submerged wheelset lifting and conveying trolley, especially a submerged wheelset lifting and conveying trolley used in an automated wheel lathe repair production line for railway freight cars. Background Technology

[0002] The turning and repair of railway freight car wheelset treads currently relies heavily on specialized machine tools such as wheel lathes. However, with the continuous increase in the number of railway freight cars, the task of wheelset turning and repair is becoming increasingly demanding. To meet the growing production needs, the automation level of wheel lathes urgently needs to be significantly improved.

[0003] Normally, wheelset loading and unloading operations rely on a combination of wheel pullers and manual pushing, followed by lifting by a trolley. However, this method is not only inefficient but also fails to meet the high requirements of automated wheel turning on wheel lathes. With technological advancements and increased production efficiency, the limitations of this traditional method have become increasingly apparent. Therefore, there is a need to develop a wheelset lifting and conveying trolley with a high degree of automation and efficiency, capable of adapting to the loading and unloading needs of various types of railway freight cars. Utility Model Content

[0004] To overcome the shortcomings of the prior art, this utility model designs a submerged wheelset lifting and conveying trolley. The technical solution adopted by this utility model is as follows: a submerged wheelset lifting and conveying trolley includes a frame, a drive wheel set located at the front of the lower part of the frame, a driven wheel set located at the rear of the lower part of the frame and parallel to the drive wheel set, and also includes a reduction motor, a lifting bracket, a hydraulic cylinder, and a support plate located on the upper surface of the lifting bracket. The hydraulic cylinder is fixed in the middle of the frame, and its output end is connected to the lifting bracket. Under the drive of the hydraulic cylinder, the lifting bracket moves up and down; the reduction motor drives the trolley to reciprocate along the track.

[0005] The frame is made of welded steel with multiple mounting seats and mounting holes machined on it; the driven wheel set is supported by bearings and installed on the lower part of the frame.

[0006] Furthermore, the drive wheel assembly consists of a drive shaft and drive wheels located at both ends of the drive shaft. The power output end of the geared motor is connected to the drive shaft, and the geared motor can drive the drive shaft to rotate the drive wheel assembly.

[0007] Furthermore, it also includes a guide sleeve installed on the vehicle frame. The lifting bracket consists of a support plate and a guide rod connected below the support plate. The guide rod can slide up and down inside the guide sleeve, and the support plate is located on the upper surface of the support plate.

[0008] Furthermore, a displacement sensor is provided on the side of the vehicle frame. The displacement sensor includes a base and a detection end. The base is snapped into the edge of the vehicle frame. When the lifting bracket moves up and down, the detection end of the displacement sensor extends or retracts synchronously in the base, thereby realizing the detection of the displacement of the lifting bracket's lifting position.

[0009] Furthermore, a wheelset detection sensor is installed on the other side of the frame, positioned opposite to the displacement sensor.

[0010] Furthermore, a chip removal plate is installed at the front end of the frame to remove iron filings and other obstacles from the track during travel.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] This utility model integrates high automation, high efficiency and multi-model adaptability, and can ensure stable and reliable lifting and conveying actions. It is suitable for various wheel lathes and can be seamlessly connected with wheelset conveyor lines, robotic arms, etc. It is suitable for medium and large batch automated production, while meeting the requirements of long-term and high-load work, and significantly reducing the intensity of manual labor. Attached Figure Description

[0013] Figure 1 This is a three-dimensional schematic diagram of a submerged wheelset lifting and conveying trolley according to the present invention;

[0014] Figure 2 This is a front view schematic diagram of a submerged wheelset lifting and conveying trolley according to the present invention;

[0015] Figure 3 This is a top view schematic diagram of a submerged wheelset lifting and conveying trolley according to the present invention;

[0016] Figure 4 This is a left-side view of a submerged wheelset lifting and conveying trolley according to the present invention;

[0017] Figure 5 This is a three-dimensional schematic diagram of a submerged wheelset lifting and conveying trolley according to the present invention, when lifting wheelsets.

[0018] Reference numerals: 100, conveyor trolley; 1, frame; 2, drive wheel assembly; 21, drive wheel; 22, drive shaft; 3, geared motor; 4, driven wheel assembly; 5, lifting bracket; 51, support platform; 52, guide rod; 53, guide sleeve; 6, hydraulic cylinder; 7, pallet; 8, displacement sensor; 9, wheelset detection sensor; 10, chip removal plate; 11, track; 12, wheelset. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0020] See Figures 1-5 The present invention discloses a submerged wheelset lifting and conveying trolley, comprising a frame 1, an active wheel set 2 disposed at the lower front of the frame 1, a driven wheel set 4 disposed at the lower rear of the frame 1 and parallel to the active wheel set 2, and further comprising a reduction motor 3, a lifting bracket 5, a hydraulic cylinder 6, and a support plate 7 disposed on the upper surface of the lifting bracket 5. The hydraulic cylinder 6 is fixed in the middle of the frame 1, and the output end of the hydraulic cylinder 6 is connected to the lifting bracket 5. Under the drive of the hydraulic cylinder 6, the lifting bracket 5 moves up and down; the reduction motor 3 drives the trolley to reciprocate along the track 11.

[0021] The lifting bracket 5 can rise and lift the wheelset 12 placed on the ground or a designated workstation and transport it to the designated workstation, or it can lower and place the wheelset 12 on the ground or a designated workstation.

[0022] Preferably, it also includes a guide sleeve 53 installed on the frame 1. The lifting bracket 5 is composed of a base 51 and a guide rod 52 connected below the base 51. The guide rod 52 can slide up and down in the guide sleeve 53 respectively. The support plate 7 is provided on the upper surface of the base 51.

[0023] Preferably, the frame 1 is made of welded steel, and multiple mounting seats and mounting holes are machined on it for mounting the guide sleeve 53 and the hydraulic cylinder 6;

[0024] Preferably, the drive wheel assembly 2 consists of a drive shaft 22 with drive wheels 21 at both ends. The drive wheel assembly 2 is supported by bearings and installed at the lower front of the frame 1. The power output end of the geared motor 3 is connected to the drive shaft 22, and the geared motor 3 can drive the drive shaft 22 to rotate the drive wheel assembly 2.

[0025] Preferably, a displacement sensor 8 is provided on the side of the frame 1. The displacement sensor 8 includes a base and a detection end. The base is snapped into the edge of the frame 1. When the lifting bracket 5 moves up and down, the detection end of the displacement sensor 8 extends or retracts in the base simultaneously, thereby realizing the detection of the displacement of the lifting bracket 5 at the lifting position.

[0026] Preferably, a wheelset detection sensor 9 is provided on the other side of the frame 1, which is positioned opposite to the displacement sensor 8.

[0027] Preferably, a chip removal plate 10 is also installed at the front end of the frame 1 to remove iron filings and other obstacles on the track 11 during travel, ensuring that the drive wheel set 2 and the driven wheel set 4 can pass smoothly.

[0028] Working principle: The geared motor 3 starts, driving the drive shaft 22 to rotate the drive wheel set 2, so that the conveying trolley 100 travels along the track 11 to under the wheelset 12. The lifting bracket 5 lifts the wheelset 12 and adjusts its position and height to adapt to the center height of the wheel lathe. The wheelset 12, which is placed on the ground or at a designated work station, is sent into the wheel lathe for subsequent clamping and turning work. After the wheelset turning is completed, the trolley 100 travels along the track 11 to under the wheelset 12 and transports the wheelset 12 back.

[0029] This utility model controls the height of the lifting bracket 5 to the highest point based on the position signal feedback from the displacement sensor 8 and the programming control. Specifically, when the axle diameter of the wheelset 12 is small, the lifting bracket 5 is raised to a higher position; when the axle diameter of the wheelset 12 is large, the lifting bracket 5 is raised to a lower position. The wheel lathe CNC system can retrieve the pre-stored axle diameter value of the corresponding wheelset model based on the current wheelset model information transmitted from the corresponding information system, thereby realizing the automatic lifting of wheelsets 12 of different models and different axle diameters to the same height that adapts to the center of the wheel lathe.

[0030] The wheelset detection sensor 9 adopts an infrared diffuse reflection detection method with an effective detection distance of not less than 0.5m. When there is a wheelset 12 above the conveyor trolley 100, the infrared light emitted by the wheelset detection sensor 9 is emitted onto the axle of the wheelset 12 and diffuse reflection is generated, triggering the sensor signal, indicating that there is a wheelset 12 above the conveyor trolley 100. Conversely, it indicates that there is no wheelset 12 above the conveyor trolley 100.

[0031] The displacement sensor 8 adopts a variable resistance-current detection method, with a displacement detection accuracy of not less than 0.05mm. When the detection end of the displacement sensor 8 moves up and down with the lifting bracket 5, it generates a linear change in current signal. Through numerical control calculation, the real-time position information of the lifting bracket 5 is obtained.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A latent wheel set lifting conveying trolley, comprising a trolley frame (1), a driving wheel set (2) arranged at the front lower part of the trolley frame (1), and a driven wheel set (4) arranged at the rear lower part of the trolley frame (1) and parallel to the driving wheel set (2), characterized in that: a reduction motor (3), a lifting bracket (5), an oil cylinder (6), and a supporting plate (7) arranged on the upper surface of the lifting bracket (5) are further included, the oil cylinder (6) is fixed at the middle part of the trolley frame (1), the output end of the oil cylinder (6) is connected to the lifting bracket (5), and the lifting bracket (5) moves up and down under the driving of the oil cylinder (6); the reduction motor (3) drives the trolley to reciprocate along a track (11).

2. The latent wheel set lifting conveying trolley according to claim 1, characterized in that: the driving wheel set (2) is composed of a driving shaft (22) and driving wheels (21) arranged at both ends of the driving shaft (22), the power output end of the reduction motor (3) is connected to the driving shaft (22), and the reduction motor (3) can drive the driving shaft (22) to rotate and drive the driving wheel set (2) to rotate.

3. The latent wheel set lifting conveying trolley according to claim 1, characterized in that: a guide sleeve (53) is further installed on the trolley frame (1), the lifting bracket (5) is composed of a bearing platform (51) and a guide rod (52) connected below the bearing platform (51), the guide rod (52) can slide up and down in the guide sleeve (53) respectively, and the supporting plate (7) is arranged on the upper surface of the bearing platform (51).

4. The latent wheel set lifting conveying trolley according to claim 1, characterized in that: a displacement sensor (8) is arranged on the side edge of the trolley frame (1), the displacement sensor (8) comprises a base and a detection end, the base is clamped on the edge of the trolley frame (1), and the detection end of the displacement sensor (8) is extended or retracted in the base synchronously when the lifting bracket (5) moves up and down, so as to realize the detection of the displacement amount of the lifting position of the lifting bracket (5).

5. The latent wheel set lifting conveying trolley according to claim 1, characterized in that: a wheel set detection sensor (9) is arranged on the other side of the trolley frame (1).

6. The latent wheel set lifting conveying trolley according to claim 1, characterized in that: a scrap sweeping plate (10) is arranged at the front end of the trolley frame (1). ​ ​ ​ ​ ​ ​

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