A positioning device for a wheel dolly

Abstract

The utility model relates to the field of jacking machine, specifically is a kind of alignment device for jacking machine, including base, the upper end of base is fixedly connected with mounting bracket, the side surface of mounting bracket is fixedly connected with car frame, mobile wheel is provided on the car frame, sensor is contacted on the car frame, installation mechanism is provided on the car frame, the installation mechanism includes mounting block, mounting hole, the side surface of sensor is fixedly connected in mounting block, the mounting hole is set up on mounting block, bolt is slidably connected in the mounting hole, limit rod is fixedly connected in the car frame, the utility model is fixed mounting block on the side surface of sensor, and it is fixed to mounting block with spring and bolt cooperation, to complete the fixing of sensor, when overhauling sensor, only need to remove bolt to remove the limit of mounting block, to remove the limit of sensor, it is convenient to overhaul sensor.

Description

Technical Field

[0001] This utility model relates to the field of car jacking machines, specifically a positioning device for a car jacking machine. Background Technology

[0002] The car lifting machine alignment device is a key piece of equipment in the modern rail transit vehicle maintenance system. It is mainly used to achieve precise positioning of the car body lifting device during the maintenance of EMU or metro trains, so as to safely and efficiently complete the replacement of bogies and the maintenance of the bottom of the car body.

[0003] When a car-lifting machine is used to inspect and maintain a high-speed train, it aims to precisely align the lifting head of the machine with the lifting point of the train to be inspected. For example, patent number CN212151461U includes a longitudinal alignment component, a vertical alignment component, and a lateral alignment component. The car body lifting device of the car-lifting machine achieves a preset longitudinal displacement through the longitudinal alignment component, the lifting head of the car body lifting device achieves a preset vertical displacement through the vertical alignment component, and the lifting head achieves a preset lateral displacement through the lateral alignment component, so that the lifting head is aligned with the lifting point of the train to be inspected. Although this patent achieves the alignment of the car-lifting machine to a certain extent, the moving wheel accessories of the car-lifting machine are often equipped with sensors, which require regular maintenance. Since the sensors are often fixedly installed, this makes maintenance inconvenient. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, sensors are often installed on the moving wheel attachments of car jacking machines. These sensors require regular maintenance, but since they are usually fixed in place, maintenance is inconvenient. This utility model proposes an alignment device for car jacking machines.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a positioning device for a vehicle jacking machine, including a base, a mounting frame fixedly connected to the upper end of the base, a vehicle frame fixedly connected to the side of the mounting frame, a moving wheel provided on the vehicle frame, a sensor contacting the vehicle frame, and a mounting mechanism provided on the vehicle frame; The mounting mechanism includes a mounting block and a mounting hole. The mounting block is fixedly connected to the side of the sensor. The mounting hole is opened on the mounting block. A pin is slidably connected in the mounting hole. A limit rod is fixedly connected in the frame. A spring is sleeved on the outside of the limit rod.

[0006] Preferably, one end of the spring is fixedly connected to the pin, and the other end of the spring is fixedly connected to the vehicle frame.

[0007] Preferably, the pin is slidably connected to the outside of the limiting rod and slidably connected to the inside of the vehicle frame.

[0008] Preferably, a mounting plate is fixedly connected to the mounting bracket, a lateral driver is provided on the mounting plate, a lifting plate is fixedly connected to the output end of the lateral driver, and a guide mechanism is provided on the mounting plate.

[0009] Preferably, the guiding mechanism includes a guide rail and a slide bar. The guide rail is opened inside the mounting plate, and the slide bar is fixedly connected to the side of the lifting plate and slidably connected to the guide rail. The mounting plate has an injection hole at the beginning, and a cover plate is slidably connected to the upper end of the mounting plate. A protrusion is fixedly connected to the upper end of the mounting plate, and a damping shaft is fixedly connected to the protrusion.

[0010] Preferably, the injection hole is connected to the guide rail, and a cover plate is slidably connected to the outer side of the damping shaft.

[0011] Preferably, the upper end of the mounting bracket is provided with a vertical driver, the vertical driver is provided with a drive output end, the drive output end is disposed inside the mounting bracket, a horizontal driver is slidably connected to the outside of the drive output end, a control terminal is provided on the side of the mounting bracket, and the control terminal is provided with control buttons.

[0012] The advantages of this utility model are: This invention secures the sensor by fixing a mounting block to the side of the sensor and using a spring and a pin to fix the mounting block. At this point, simply moving the pin releases the limiting force on the mounting block, thus releasing the limiting force on the sensor and facilitating sensor maintenance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This utility model Figure 1 Enlarged view of point A in the middle; Figure 3 This is a schematic diagram of the installation mechanism of this utility model; Figure 4 This utility model Figure 1 Enlarged view of point B in the middle; Figure 5 This is a schematic diagram of the guiding mechanism of this utility model; Figure 6 This utility model Figure 5 A magnified view of point C in the middle.

[0015] In the diagram: 1. Base; 2. Mounting bracket; 3. Frame; 4. Casters; 5. Sensor; 6. Mounting mechanism; 61. Mounting block; 62. Mounting hole; 63. Pin; 64. Limiting rod; 65. Spring; 7. Mounting plate; 8. Lateral actuator; 9. Lifting plate; 10. Guide mechanism; 101. Guide rail; 102. Sliding bar; 103. Injection hole; 104. Cover plate; 105. Protrusion; 106. Damping shaft; 11. Vertical actuator; 12. Drive output end; 13. Control terminal; 14. Control button. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0017] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail. This application discloses an alignment device for a vehicle jacking machine. (Refer to...) Figure 1 and Figure 2 A positioning device for a vehicle jack includes a base 1, a mounting frame 2 fixedly connected to the upper end of the base 1, a vehicle frame 3 fixedly connected to the side of the mounting frame 2, a movable wheel 4 provided on the vehicle frame 3, a sensor 5 in contact with the vehicle frame 3, and a mounting mechanism 6 provided on the vehicle frame 3. The mounting mechanism 6 includes a mounting block 61 and a mounting hole 62. The mounting block 61 is fixedly connected to the side of the sensor 5. The mounting hole 62 is opened on the mounting block 61. A pin 63 is slidably connected in the mounting hole 62. A limit rod 64 is fixedly connected in the frame 3. A spring 65 is sleeved on the outside of the limit rod 64.

[0018] Reference Figure 2 and Figure 3 One end of the spring 65 is fixedly connected to the pin 63, and the other end of the spring 65 is fixedly connected to the frame 3. Through the design of the spring 65, the pin 63 can slide into the mounting hole 62 through the elasticity of the spring 65 itself, thereby limiting the mounting block 61. Reference Figure 2 and Figure 3 The pin 63 is slidably connected to the outside of the limiting rod 64 and slidably connected to the inside of the frame 3. Through the setting of the pin 63, the sensor 5 can be indirectly limited by the pin 63. Reference Figure 1and Figure 4 Mounting bracket 2 is fixedly connected to mounting plate 7, mounting plate 7 is provided with lateral drive 8, lifting plate 9 is fixedly connected to the output end of lateral drive 8, and mounting plate 7 is provided with guide mechanism 10. The lateral drive 8 can make the lifting plate 9 move laterally. Reference Figure 5 and Figure 6 The guiding mechanism 10 includes a guide rail 101 and a slide bar 102. The guide rail 101 is formed inside the mounting plate 7. The slide bar 102 is fixedly connected to the side of the lifting plate 9 and slidably connected to the guide rail 101. The mounting plate 7 has an injection hole 103. A cover plate 104 is slidably connected to the upper end of the mounting plate 7. A protrusion 105 is fixedly connected to the upper end of the mounting plate 7. A damping shaft 106 is fixedly connected to the protrusion 105. By fixing the slide bar 102 to the lifting plate 9... The slide bar 102 is slidably connected to the guide rail 101 starting inside the mounting plate 7. The guide rail 101 and the slide bar 102 work together to guide the lifting plate 9, making the movement of the lifting plate 9 more stable. When the friction between the slide bar 102 and the guide rail 101 is large, the protrusion 105 can be moved out of the injection hole 103. Lubricant can be added to the guide rail 101 through the injection hole 103 to maintain low friction between the guide rail 101 and the slide bar 102. Reference Figure 5 and Figure 6 The injection hole 103 is connected to the guide rail 101. A cover plate 104 is slidably connected to the outside of the damping shaft 106. By designing the cover plate 104, the injection hole 103 can be blocked to prevent foreign objects from entering the guide rail 101 through the injection hole 103 and affecting the guidance. Reference Figure 1 and Figure 4 A vertical driver 11 is provided at the upper end of the mounting frame 2. A drive output end 12 is provided on the vertical driver 11. The drive output end 12 is located inside the mounting frame 2. A horizontal driver 8 is slidably connected to the outside of the drive output end 12. A control terminal 13 is provided on the side of the mounting frame 2. A control button 14 is provided on the control terminal 13. The vertical movement of the lifting plate 9 can be realized through the vertical driver 11. The control terminal 13 and the control button 14 can control the lifting machine.

[0019] Working principle: First, the longitudinal movement of the vehicle lifting machine can be achieved through the moving wheel 4. The lateral movement of the lifting plate 9 can be achieved through the lateral drive 8. The vertical movement of the lifting plate 9 can be indirectly achieved through the cooperation of the vertical drive 11 and the drive output end 12. The alignment of the vehicle is achieved through the cooperation of the above three. The pin 63 can be moved to slide out of the mounting hole 62 in the mounting block 61, thus releasing the limit on the mounting block 61 and the sensor 5, facilitating the maintenance of the sensor 5. The guide rail 101 and the slide bar 102 work together to guide the lifting plate 9, making the movement of the lifting plate 9 more stable. When the friction between the slide bar 102 and the guide rail 101 is large, the protrusion 105 can be moved out of the injection hole 103. Lubricant can be added to the guide rail 101 through the injection hole 103 to maintain low friction between the guide rail 101 and the slide bar 102. The cover plate 104 can seal the injection hole 103 to prevent foreign objects from entering the guide rail 101 through the injection hole 103 and affecting the guidance.

[0020] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A positioning device for a vehicle jacking machine, comprising a base (1), characterized in that: The upper end of the base (1) is fixedly connected to the mounting bracket (2), the side of the mounting bracket (2) is fixedly connected to the frame (3), the frame (3) is provided with a moving wheel (4), the frame (3) is in contact with a sensor (5), and the frame (3) is provided with a mounting mechanism (6). The mounting mechanism (6) includes a mounting block (61) and a mounting hole (62). The mounting block (61) is fixedly connected to the side of the sensor (5). The mounting hole (62) is opened on the mounting block (61). A pin (63) is slidably connected in the mounting hole (62). A limit rod (64) is fixedly connected in the frame (3). A spring (65) is sleeved on the outside of the limit rod (64).

2. The alignment device for a car jacking machine according to claim 1, characterized in that: One end of the spring (65) is fixedly connected to the pin (63), and the other end of the spring (65) is fixedly connected to the frame (3).

3. The alignment device for a car jacking machine according to claim 1, characterized in that: The pin (63) is slidably connected to the outside of the limiting rod (64), and the pin (63) is slidably connected to the inside of the frame (3).

4. The alignment device for a car jacking machine according to claim 3, characterized in that: A mounting plate (7) is fixedly connected to the mounting bracket (2), a lateral driver (8) is provided on the mounting plate (7), a lifting plate (9) is fixedly connected to the output end of the lateral driver (8), and a guide mechanism (10) is provided on the mounting plate (7).

5. The alignment device for a car jacking machine according to claim 4, characterized in that: The guiding mechanism (10) includes a guide rail (101) and a slide bar (102). The guide rail (101) is opened in the mounting plate (7). The slide bar (102) is fixedly connected to the side of the lifting plate (9). The slide bar (102) is slidably connected in the guide rail (101). The mounting plate (7) has an injection hole (103). The upper end of the mounting plate (7) is slidably connected to a cover plate (104). The upper end of the mounting plate (7) is fixedly connected to a protrusion (105). A damping shaft (106) is fixedly connected to the protrusion (105).

6. The alignment device for a car jacking machine according to claim 5, characterized in that: The injection hole (103) is connected to the guide rail (101), and a cover plate (104) is slidably connected to the outside of the damping shaft (106).

7. The alignment device for a car jacking machine according to claim 1, characterized in that: The upper end of the mounting bracket (2) is provided with a vertical driver (11), the vertical driver (11) is provided with a drive output end (12), the drive output end (12) is located inside the mounting bracket (2), the outer side of the drive output end (12) is slidably connected with a horizontal driver (8), the side of the mounting bracket (2) is provided with a control terminal (13), and the control terminal (13) is provided with a control button (14).

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