Sand box sand level detection function sand spreader
By introducing pressure detection and adjustment components into the sand spreader, the problems of difficult sand level detection in the sand box and unreasonable opening design are solved, enabling accurate detection of the sand level in the sand box and flexible control of the opening, thus improving the ease of use of the sand spreader and the reliability of railway transportation.
Patent Information
- Application Number
- CN202521398765.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-19
- Estimated Expiration
- 2035-07-04
AI Technical Summary
Existing sand spreaders are difficult to accurately detect the amount of sand remaining in the sand box during use, and unreasonable opening design leads to blockage or waste of sand.
By employing pressure detection and adjustment components, and by installing a pressure sensor and a motor-driven adjustment mechanism at the sand outlet, the sand level in the sand box can be detected and the opening size of the sand spreader can be flexibly controlled.
This technology enables accurate determination of the amount of sand in the sand box without the need to install detection sensors inside the new sand making box, avoiding blockages and waste, and improving ease of use and reliability of railway transportation.
Smart Images
Figure CN224375572U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of railway transportation, and in particular to a sand spreader with sand box sand level detection function. Background Technology
[0002] In the railway transportation sector, sand spreaders are one of the important pieces of equipment to ensure the safe operation of locomotives. Their main function is to spread sand between the wheels and the rails to increase friction, prevent wheel slippage, and ensure the stability of the locomotive during starting, braking, and driving. However, existing sand spreaders have some problems in their use.
[0003] On the one hand, it is difficult for drivers and maintenance personnel to accurately determine the remaining amount of sand in the sand box. The current method of sand level detection usually involves installing detection sensors in new sand preparation boxes, but this method is difficult to retrofit onto locomotives that are already in operation.
[0004] On the other hand, the openings of existing sand spreaders are generally small, which is not conducive to the passage of larger particles. Sand spreaders often stop discharging sand due to blockage by large particles. Even if some sand spreaders have larger openings that can avoid blockage, a large sand outlet will still spray out a lot of sand even when a large amount of sand is not needed, resulting in sand waste.
[0005] To address this issue, a sand spreader with sand box level detection function is proposed. Utility Model Content
[0006] To overcome the above shortcomings, this utility model provides a sand spreader with sand box sand level detection function, which aims to improve the problem of difficulty in installing detection sensors on new sand making boxes in the prior art.
[0007] To achieve the above objectives, the present invention adopts the following technical solution: a sand spreader with sand box sand level detection function, comprising a body, a sand inlet on the upper surface of the body, an opening and closing valve in the middle section of the inner wall of the body, an air inlet connector that is connected through and fixed to the left surface of the body, a controller on the left surface of the body, an adjustment component on the lower surface of the body, and a pressure detection component on the upper surface of the body;
[0008] The adjustment assembly includes a motor, the output shaft of which is fixedly connected to a gear, a positioning ring is rotatably connected to the lower surface of the body, and a toothed block is fixedly connected to the right surface of the positioning ring.
[0009] As a further description of the above technical solution:
[0010] The adjustment assembly also includes a slider, a guide plate is fixedly connected to the right surface of the slider, an arc groove is formed on the upper surface of the guide plate, and a positioning block is fixedly connected to the lower surface of the positioning ring.
[0011] As a further description of the above technical solution:
[0012] The pressure detection assembly includes a bearing sleeve, a liner fixedly connected to the bottom end of the inner wall of the bearing sleeve, a pressure sensor disposed on the upper surface of the liner, a linear bearing disposed on the inner wall of the bearing sleeve, a pressure transmission shaft disposed on the inner wall of the linear bearing, and a pressure cap mounted on the upper surface of the pressure transmission shaft by fixing screws.
[0013] As a further description of the above technical solution:
[0014] The motor is installed on the inner wall at the bottom of the machine body, the output shaft of the motor passes through the lower surface of the machine body, the sand inlet passes through the lower surface of the machine body, and the tooth block and gear mesh.
[0015] As a further description of the above technical solution:
[0016] The slider is slidably connected to the lower surface of the body, the upper surface of the guide plate is in contact with the lower surface of the positioning ring, and the guide plate is set in a conical shape.
[0017] As a further description of the above technical solution:
[0018] The arc-shaped groove is arc-shaped, and the positioning block is slidably connected to the inner wall of the arc-shaped groove.
[0019] As a further description of the above technical solution:
[0020] The lower surface of the bearing sleeve is fixedly connected to the upper surface of the machine body, the lower surface of the liner is fixedly connected to the upper surface of the machine body, the pressure transmission shaft passes through the upper surface of the linear bearing, the lower surface of the pressure transmission shaft contacts the upper surface of the pressure sensor, and the lower surface of the linear bearing contacts the upper surface of the pressure sensor.
[0021] As a further description of the above technical solution:
[0022] The fixing screw passes through and is threaded onto the upper surface of the pressure cap, and the fixing screw also passes through and is threaded onto the upper surface of the pressure transmission shaft.
[0023] This utility model has the following beneficial effects:
[0024] 1. In this utility model, with the cooperation of the pressure detection component, it is only necessary to install the pressure detection component at the sand outlet of the sand box to determine the remaining amount of sand in the sand box based on the detected pressure. There is no need to install a detection sensor in the new sand making box, which is convenient to install and improves the ease of use.
[0025] 2. In this utility model, by adjusting the components, the opening size of the sand spreader can be flexibly changed by starting the motor, avoiding the waste of large openings and the problem of easy blockage of small openings, thus improving the reliability of railway transportation. Attached Figure Description
[0026] Figure 1 This is a front view of the three-dimensional structure of the overall device in this utility model;
[0027] Figure 2 This is a three-dimensional cross-sectional view of the body of the present invention;
[0028] Figure 3 This is a three-dimensional structural breakdown diagram of the motor, positioning ring, and guide plate in this utility model;
[0029] Figure 4 This is a three-dimensional cross-sectional diagram of the pressure cap, bearing sleeve, and pressure sensor in this utility model.
[0030] Legend:
[0031] 1. Body; 101. Sand inlet; 2. On / off valve; 3. Air inlet connector; 4. Controller; 51. Motor; 52. Gear; 53. Positioning ring; 54. Tooth block; 55. Positioning block; 56. Guide plate; 57. Slider; 501. Arc groove; 61. Bearing sleeve; 62. Linear bearing; 63. Pressure transmission shaft; 64. Pressure cap; 65. Fixing screw; 66. Liner; 67. Pressure sensor. Detailed Implementation
[0032] 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. 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 protection scope of the present utility model.
[0033] Reference Figure 1 - Figure 2This utility model provides an embodiment of a sand spreader with sand box sand level detection function, including a body 1. The body 1 is the main body of the sand spreader, which is prior art and can be implemented by those skilled in the art. Since it is prior art, it will not be described in detail in this case. The body 1 is installed at the outlet of the external sand box. A sand inlet 101 is provided on the upper surface of the body 1, which is connected to the sand box. An on / off valve 2 is provided in the middle section of the inner wall of the body 1. The on / off valve 2 is prior art and can be implemented by those skilled in the art. Since it is prior art, it will not be described in detail in this case. The on / off valve 2 is located at the sand inlet 101. In the middle section, the sand inlet 101 can be switched on and off. An air inlet connector 3 is fixedly connected through the left surface of the machine body 1. The air inlet connector 3 can ensure the stability of the air pressure of the device. A controller 4 is set on the left surface of the machine body 1. The controller 4 is existing technology and can be implemented by those skilled in the art. Since it is existing technology, it will not be described in detail in this case. An adjustment component is set on the lower surface of the machine body 1. The adjustment component can flexibly change the opening size of the sand outlet at the bottom of the machine body 1. A pressure detection component is set on the upper surface of the machine body 1. The pressure detection component can detect the pressure brought by the gravity of the sand in the sand box, thereby detecting the amount of sand in the arc sand box.
[0034] Reference Figure 1 - Figure 3 The adjustment component includes a motor 51, the output shaft of which is fixedly connected to a gear 52. The motor 51 is existing technology and can be implemented by those skilled in the art. As it is existing technology, it will not be described in detail in this case. Starting the motor 51 can drive the gear 52 to rotate. A positioning ring 53 is rotatably connected to the lower surface of the body 1. A toothed block 54 is fixedly connected to the right surface of the positioning ring 53. Multiple sets of toothed blocks 54 are evenly distributed on the right surface of the positioning ring 53. The adjustment component also includes a slider 57, the right surface of which is fixedly connected to a guide plate 56. The slider 57 and the guide plate 56 will move synchronously. Four sets of guide plates 56, sliders 57 and positioning blocks 55 are arranged in a circular array with the center of the positioning ring 53 as the origin. An arc groove 501 is opened on the upper surface of the guide plate 56, and a positioning block 55 is fixedly connected to the lower surface of the positioning ring 53.
[0035] Reference Figure 1 , Figure 4The pressure detection assembly includes a bearing sleeve 61, with a liner 66 fixedly connected to the bottom of the inner wall of the bearing sleeve 61. A pressure sensor 67 is provided on the upper surface of the liner 66. The pressure sensor 67 is existing technology and can be implemented by those skilled in the art. As it is existing technology, it will not be described in detail in this case. It can detect the magnitude of pressure. A linear bearing 62 is provided on the inner wall of the bearing sleeve 61, and a pressure transmission shaft 63 is provided on the inner wall of the linear bearing 62. The pressure transmission shaft 63 can transmit pressure to the pressure sensor 67. A pressure cap 64 is installed on the upper surface of the pressure transmission shaft 63 by fixing screws 65. Sand will directly press on the pressure cap 64, and the pressure cap 64 will transmit pressure to the pressure transmission shaft 63, and finally to the pressure sensor 67.
[0036] Reference Figure 1 - Figure 3 The motor 51 is located on the inner wall at the bottom of the machine body 1. The output shaft of the motor 51 passes through the lower surface of the machine body 1. The sand inlet 101 passes through the lower surface of the machine body 1. After the opening and closing valve 2 is opened, sand can be discharged from the sand inlet 101. The toothed block 54 and the gear 52 mesh. When the gear 52 rotates, it can drive the positioning ring 53 to rotate. The slider 57 is slidably connected to the lower surface of the machine body 1 and slides laterally. The upper surface of the guide plate 56 is in contact with the lower surface of the positioning ring 53. The guide plate 56 is set as a cone with a larger opening at the top and a smaller opening at the bottom. The arc groove 501 is set as an arc. The positioning block 55 is slidably connected to the inner wall of the arc groove 501. When the positioning block 55 rotates, it will squeeze the inner wall of the arc groove 501, which will drive the guide plate 56 to open or close synchronously.
[0037] Reference Figure 1 , Figure 4 The lower surface of the bearing sleeve 61 is fixedly connected to the upper surface of the body 1. The lower surface of the liner 66 is fixedly connected to the upper surface of the body 1. The pressure transmission shaft 63 passes through the upper surface of the linear bearing 62. The lower surface of the pressure transmission shaft 63 contacts the upper surface of the pressure sensor 67, which can transmit pressure to the pressure sensor 67. The lower surface of the linear bearing 62 contacts the upper surface of the pressure sensor 67. The fixing screw 65 passes through and is threadedly connected to the upper surface of the pressure cap 64. The fixing screw 65 passes through and is threadedly connected to the upper surface of the pressure transmission shaft 63. The fixing screw 65 can be unscrewed to facilitate the replacement of the pressure cap 64. The pressure sensor 67, the on / off valve 2, and the motor 51 are all electrically connected to the controller 4. The controller 4 can control the switching of the pressure sensor 67, the on / off valve 2, and the motor 51.
[0038] Working principle: When using this device, if a large amount of sand is required, the motor 51 can be started by controlling the controller 4 to drive the gear 52 to rotate, which in turn will drive the tooth block 54 to drive the positioning ring 53 to rotate. The rotating positioning ring 53 will drive the positioning block 55 to move and squeeze the arc groove 501, which will then drive the four sets of guide plates 56 and sliders 57 to open synchronously, expanding the sand outlet, facilitating large-volume sandblasting and avoiding blockage.
[0039] In normal use and when a small amount of sand is needed, the motor 51 can be started by controlling the controller 4 to drive the gear 52 to rotate in the opposite direction. This will cause the tooth block 54 to drive the positioning ring 53 to rotate in the opposite direction. The rotating positioning ring 53 will drive the positioning block 55 to move in the opposite direction and squeeze the arc groove 501. This will cause the four sets of guide plates 56 and the slider 57 to come together. When the four sets of guide plates 56 are in contact with each other, they will form a cone with a larger opening at the top and a smaller opening at the bottom. This will reduce the amount of sand output and avoid excessive sand output and waste.
[0040] When the position of the guide plate 56 is properly adjusted, the control controller 4 can open the on / off valve 2 to discharge sand.
[0041] Furthermore, as the amount of sand in the sand box changes, the pressure acting on the pressure cap 64 will also change, and the pressure transmitted to the pressure sensor 67 through the pressure transmission shaft 63 will also change. Based on the change in pressure value, the amount of sand inside the sand box can be determined.
[0042] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A sand spreader with sand box sand level detection function, comprising a body (1), characterized in that: The upper surface of the body (1) is provided with a sand inlet (101), the middle section of the inner wall of the body (1) is provided with an opening and closing valve (2), the left surface of the body (1) is connected to an air inlet connector (3), the left surface of the body (1) is provided with a controller (4), the lower surface of the body (1) is provided with an adjustment component, and the upper surface of the body (1) is provided with a pressure detection component. The adjustment assembly includes a motor (51), the output shaft of which is fixedly connected to a gear (52), and a positioning ring (53) is rotatably connected to the lower surface of the body (1), and a toothed block (54) is fixedly connected to the right surface of the positioning ring (53).
2. A sand spreader with sand box sand level detection function according to claim 1, characterized in that: The adjustment assembly also includes a slider (57), a guide plate (56) is fixedly connected to the right surface of the slider (57), an arc groove (501) is opened on the upper surface of the guide plate (56), and a positioning block (55) is fixedly connected to the lower surface of the positioning ring (53).
3. A sand spreader with sand box sand level detection function according to claim 1, characterized in that: The pressure detection assembly includes a bearing sleeve (61), a liner (66) is fixedly connected to the bottom end of the inner wall of the bearing sleeve (61), a pressure sensor (67) is provided on the upper surface of the liner (66), a linear bearing (62) is provided on the inner wall of the bearing sleeve (61), a pressure transmission shaft (63) is provided on the inner wall of the linear bearing (62), and a pressure cap (64) is installed on the upper surface of the pressure transmission shaft (63) by a fixing screw (65).
4. A sand spreader with sand box sand level detection function according to claim 1, characterized in that: The motor (51) is located on the inner wall at the bottom of the machine body (1). The output shaft of the motor (51) passes through the lower surface of the machine body (1). The sand inlet (101) passes through the lower surface of the machine body (1). The tooth block (54) and the gear (52) mesh.
5. A sand spreader with sand box sand level detection function according to claim 2, characterized in that: The slider (57) is slidably connected to the lower surface of the body (1), the upper surface of the guide plate (56) and the lower surface of the positioning ring (53) are attached, and the guide plate (56) is set to be conical.
6. A sand spreader with sand box sand level detection function according to claim 2, characterized in that: The arc groove (501) is arc-shaped, and the positioning block (55) is slidably connected to the inner wall of the arc groove (501).
7. A sand spreader with sand box sand level detection function according to claim 3, characterized in that: The lower surface of the bearing sleeve (61) is fixedly connected to the upper surface of the body (1), the lower surface of the liner (66) is fixedly connected to the upper surface of the body (1), the pressure transmission shaft (63) passes through the upper surface of the linear bearing (62), the lower surface of the pressure transmission shaft (63) contacts the upper surface of the pressure sensor (67), and the lower surface of the linear bearing (62) contacts the upper surface of the pressure sensor (67).
8. A sand spreader with sand box sand level detection function according to claim 3, characterized in that: The fixing screw (65) passes through and is threaded onto the upper surface of the pressure cap (64), and the fixing screw (65) passes through and is threaded onto the upper surface of the pressure transmission shaft (63).