Automatic lifting type drum head-on fan

Abstract

The utility model discloses an automatic lifting type drum head-on fan which comprises a machine body, a driving motor and a transmission shaft, the transmission shaft is installed at the output end of the driving motor, the machine body is installed on the outer side of the transmission shaft in a sleeved mode, and a transmission gear is arranged on the outer side of the end, away from the driving motor, of the transmission shaft in a sleeved mode. The transmission shaft is connected with a fixed frame in an inserted mode, the transmission gear is rotationally arranged in the fixed frame, the transmission gear is connected with a meshing toothed plate in a meshed mode, a plurality of moving frames are installed on the outer side face of the meshing toothed plate and extend out of the outer side of the fixed frame, and driving blocks are slidably connected to the lower side edges of the moving frames in an inserted mode. The multiple driving blocks are connected with a connecting plate at the same time, and guide blocks are arranged below the driving blocks. According to the utility model, the position of the meshing toothed plate is horizontally and vertically adjusted, so that the transmission gear and the meshing toothed plate are in disengaged and meshed states at different positions, and the machine body can rotate at any position.

Description

Technical Field

[0001] This utility model relates to the field of automotive testing equipment technology, and in particular to an automatically lifting rotary drum front fan. Background Technology

[0002] The rotary drum front fan is used in automotive rotary drum test benches, which are important equipment for testing the technical performance of complete vehicles.

[0003] When using a rotary drum front blower, it is usually installed on a fixed frame. Because it has an automatic positioning function when pulled, it is easy to operate with less effort. However, due to the fixed installation method, it can only be used at a certain point and cannot be adjusted in height, which makes its use too limited and restricts its application environment.

[0004] Therefore, we provide an automatically lifting rotary drum front fan. Utility Model Content

[0005] The purpose of this invention is to address the aforementioned technical problems by providing an automatically lifting rotary drum front fan that offers height adjustment.

[0006] In view of this, the present invention provides an automatically lifting rotary drum front fan, including a body, a drive motor, and a transmission shaft. The transmission shaft is installed at the output end of the drive motor, and the body is sleeved on the outside of the transmission shaft. A transmission gear is sleeved on the outer side of the end of the transmission shaft away from the drive motor. A fixed frame is inserted into the transmission shaft, and the transmission gear is rotatably disposed inside the fixed frame. The transmission gear is meshed with a meshing tooth plate. Several movable frames are installed on the outer side of the meshing tooth plate. The movable frames extend out of the outside of the fixed frame. A drive block is slidably inserted into the lower side of the movable frame. Several drive blocks are simultaneously connected to connecting plates, and a guide block is provided below the drive blocks.

[0007] Preferably, at least two clamping plates are installed on the outer surface of the fixing frame, the transmission shaft is located between the two clamping plates, and the outer surface of the transmission gear is in contact with the inner surface of the clamping plates.

[0008] Preferably, a rotating disk is rotatably connected to the outer end surface of the drive shaft, and a guide rod is slidably connected to the rotating disk. The guide rod is installed on one side of the inner wall of the fixed frame, and the outer surface of the rotating disk is in contact with one side surface of the drive gear.

[0009] Preferably, a support groove is provided through one side of the fixed frame, and the movable frame extends through to the outside of the support groove.

[0010] Preferably, the movable frame and the drive block are inclined oppositely on the adjacent side, and a limiting guide rail is installed on the side of the movable frame near the drive block. A limiting guide groove is opened on the side of the drive block near the movable frame, and the limiting guide rail is slidably installed inside the limiting guide groove.

[0011] Preferably, the guide block is inclined, and a limit strip is installed on the upper surface of the guide block. A limit groove is formed on the side of the drive block near the limit strip, and the width of the limit groove is greater than the width of the limit strip.

[0012] Preferably, a guide frame is provided on one side of the guide block, a limiting guide rail is installed on the lower surface of the drive block, and a limiting guide groove is provided in the guide frame.

[0013] Preferably, a rotating support frame is installed at both ends of one side of the fixed frame, and a number of limiting strips are installed on the inner arc-shaped side of the upper rotating support frame.

[0014] Preferably, an auxiliary frame is provided on one side of the fixed frame, the drive motor is slidably disposed inside the auxiliary frame via a support block, and dampers are installed on both sides of the auxiliary frame, with the support block located between the two dampers.

[0015] Compared with the prior art, this utility model provides an automatically lifting rotary drum front fan, which has the following beneficial effects:

[0016] 1. This utility model is based on the meshing of a transmission gear and a meshing toothed plate. By fixing the meshing toothed plate, the transmission gear moves in position while rotating, thereby driving the machine body, drive motor, and transmission shaft to move simultaneously, so that the machine body can achieve an automatic height adjustment effect.

[0017] 2. In this utility model, under the limitation of the length of the meshing tooth plate itself, when the transmission gear moves to the uppermost or lowermost position inside the fixed frame, it disengages from the teeth on the meshing tooth plate, causing the transmission gear to rotate at the highest or lowest point.

[0018] 3. This utility model, by pushing the drive block, causes the moving frame to move in height, which in turn drives the meshing tooth plate to move synchronously, gradually engaging with the transmission gear. Then, under the rotation of the transmission gear, the machine body continues to move in height, so that the machine body can be adjusted in height again while running in its rotational position. By continuously moving the drive block, the moving frame can be moved in the horizontal direction, causing the meshing tooth plate to move horizontally at the same time, disengaging it from the meshing state with the transmission gear, so that the transmission gear can be automatically positioned at any position.

[0019] 4. This utility model allows the transmission gear to be in disengaged and engaged states with the meshing gear plate at different positions by adjusting the horizontal and vertical positions of the meshing gear plate, enabling the machine body to rotate at any position.

[0020] The parts of this device not covered herein are the same as or can be implemented using existing technologies. This utility model has a simple structure and is easy to operate. Attached Figure Description

[0021] Figure 1 This is a side view of the overall structure of an automatically lifting rotary drum front fan proposed in this utility model;

[0022] Figure 2 This is a three-dimensional structural diagram of the meshing part of an automatically lifting rotary drum front fan proposed in this utility model.

[0023] Figure 3 This is a three-dimensional structural diagram of the adjustment method of an automatically lifting rotary drum front fan proposed in this utility model;

[0024] Figure 4 This is a front view of the left half of the structure of an automatically lifting rotary drum front fan proposed in this utility model.

[0025] Figure 5 This is a front view of the right half of the automatic lifting rotary drum front fan proposed in this utility model.

[0026] In the diagram: 1. Body; 2. Drive motor; 3. Transmission shaft; 4. Transmission gear; 5. Fixed frame; 6. Clamping plate; 7. Rotating disk; 8. Guide rod; 9. Meshing tooth plate; 10. Moving frame; 11. Drive block; 12. Connecting plate; 13. Guide block; 14. Guide frame; 15. Rotating support frame; 16. Limiting strip; 17. Auxiliary frame; 18. Damper. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0028] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Example 1: An automatically lifting rotary drum front fan, such as... Figures 1-5 As shown, the device includes a body 1, a drive motor 2, and a transmission shaft 3. The transmission shaft 3 is installed at the output end of the drive motor 2. The body 1 is sleeved on the outside of the transmission shaft 3. A transmission gear 4 is sleeved on the outer side of the end of the transmission shaft 3 away from the drive motor 2. A fixed frame 5 is inserted into the transmission shaft 3. The transmission gear 4 is rotatably disposed inside the fixed frame 5. The transmission gear 4 is meshed with a meshing tooth plate 9. Several movable frames 10 are installed on the outer side of the meshing tooth plate 9. The movable frames 10 extend out of the outer side of the fixed frame 5. A drive block 11 is slidably inserted into the lower side of the movable frame 10. Several drive blocks 11 are simultaneously connected to a connecting plate 12. A guide block 13 is provided below the drive block 11.

[0030] First, driven by the drive motor 2 and the transmission shaft 3, the machine body 1 and the transmission gear 4 rotate simultaneously. As the machine body 1 gradually lengthens, the transmission gear 4 meshes with the meshing toothed plate 9. By fixing the meshing toothed plate 9, the transmission gear 4 moves while rotating, causing the machine body 1, drive motor 2, and transmission shaft 3 to move simultaneously. This results in automatic height adjustment of the machine body 1. Furthermore, due to the length limitation of the meshing toothed plate 9, when the transmission gear 4 moves to the uppermost or lowermost position inside the fixed frame 5, it disengages from the teeth on the meshing toothed plate 9, allowing the transmission gear 4 to rotate at its highest or lowest point. This allows the machine body 1 to continue rotating and extending after reaching both ends. Then, by pushing the drive block 11, the moving frame 10 moves in height, causing the meshing toothed plate 9 to move accordingly. The machine moves step by step, causing the teeth on the meshing tooth plate 9 to move towards the transmission gear 4, gradually engaging them. Then, under the rotation of the transmission gear 4, the machine body 1 continues to move in height, allowing the machine body 1 to be adjusted in height again while rotating. Guided by the guide block 13, the moving frame 10 moves horizontally by continuously moving the drive block 11, causing the meshing tooth plate 9 to move horizontally at the same time, disengaging it from the transmission gear 4. This allows the transmission gear 4 to automatically be in any position. By adjusting the position of the meshing tooth plate 9 horizontally and vertically, the transmission gear 4 can be in disengagement and engagement with the meshing tooth plate 9 at different positions, allowing the machine body 1 to rotate in any position. This ensures that the machine body 1 can be adjusted in height while also being able to rotate in any fixed position.

[0031] like Figures 1-5 As shown, at least two clamping plates 6 are installed on the outer surface of the fixed frame 5, the drive shaft 3 is located between the two clamping plates 6, and the outer surface of the drive gear 4 is in contact with the inner surface of the clamping plate 6.

[0032] A rotating disk 7 is rotatably connected to the outer end surface of the drive shaft 3. A guide rod 8 is slidably connected to the rotating disk 7. The guide rod 8 is installed on one side of the inner wall of the fixed frame 5. The outer surface of the rotating disk 7 is in contact with one side surface of the drive gear 4.

[0033] First, while the rotating disk 7 provides rotational support for the transmission shaft 3, the guide rod 8 and the rotating disk 7 guide and slide, enabling the rotating disk 7 to move in one direction while providing rotational support for the transmission shaft 3. With the rotating disk 7 and the two side clamps 6 simultaneously limiting the transmission gear 4, the transmission gear 4 is kept in a fixed vertical space to rotate, ensuring its precise and stable axial rotation. At the same time, it provides limiting support for its rotation to prevent it from shifting position.

[0034] like Figures 1-5 As shown, a support groove is provided through one side of the fixed frame 5, and the movable frame 10 extends through to the outside of the support groove.

[0035] The movable frame 10 and the drive block 11 are inclined in opposite directions on the adjacent side, and a limiting guide rail is installed on the side of the movable frame 10 near the drive block 11. A limiting guide groove is opened on the side of the drive block 11 near the movable frame 10, and the limiting guide rail is slidably installed inside the limiting guide groove.

[0036] The guide block 13 is tilted, and a limit strip is installed on the upper surface of the guide block 13. A limit groove is opened on the side of the drive block 11 near the limit strip, and the width of the limit groove is greater than the width of the limit strip.

[0037] A guide frame 14 is provided on one side of the guide block 13, and a limiting guide rail is installed on the lower surface of the drive block 11. A limiting guide groove is provided inside the guide frame 14.

[0038] When the drive block 11 is pushed, guided by the inclined surfaces on both sides of the moving frame 10 and the guide frame 14, the drive block 11 moves horizontally. The mutual restraint of the guide groove and guide rail between the drive block 11 and the moving frame 10 pushes the moving frame 10, causing a change in height. This achieves the effect of synchronously adjusting the meshing tooth plate 9. Under its own weight, the meshing tooth plate 9 can fall freely, resulting in downward adjustment. With the guide block 13 tilted, as the drive block 11 gradually moves towards a higher position on the guide block 13, it can drive the drive block 11 to move outward, pulling the moving frame 10 to move synchronously, causing the meshing tooth plate 9 to move horizontally. This allows the meshing toothed plate 9 to disengage from the transmission gear 4 at any position, enabling the device to have multiple usage modes. The limiting strip on the limiting groove restricts the movement distance of the drive block 11, ensuring controllable movement range. Furthermore, by setting the limiting guide rail inside the guide frame 14 to have short-distance movement capabilities, the drive block 11 can move horizontally and longitudinally within the limiting guide groove of the guide frame 14 via the limiting guide rail, ensuring reliable horizontal movement of the drive block 11. By installing a drive mechanism inside the guide frame 14, the guide rail inside the guide frame 14 can be moved by a drive source or manually pushed, allowing the device to select different drive methods according to actual conditions.

[0039] Example 2: An automatically lifting rotary drum front fan, such as... Figures 1-5 As shown, rotating support frames 15 are installed at both ends of one side of the fixed frame 5, and several limiting strips 16 are installed on the inner arc-shaped side of the upper rotating support frame 15.

[0040] Based on the rotational support of the two limiting bars 16, the position of the drive shaft 3 when it is at the highest and lowest points of the device is ensured. By setting multiple limiting bars 16 in the upper rotating support frame 15, the drive shaft 3 is squeezed and deformed by the deformation of the limiting bars 16 themselves, so that the drive shaft 3 moves between the rotating support frame 15 and the limiting bars 16, providing rotational support for the guide block 13 in a fixed position, and in the state of meshing of the transmission gear 4, it is forced to move downward and get out of the limitation range of the limiting bars 16.

[0041] like Figures 1-5 As shown, an auxiliary frame 17 is provided on one side of the fixed frame 5. The drive motor 2 is slidably disposed inside the auxiliary frame 17 via a support block. Damperes 18 are installed on both sides of the auxiliary frame 17, and the support block is located between the two dampers 18.

[0042] First, the sliding guide limit of the auxiliary frame 17 on the sliding block and the drive motor 2 ensures the accuracy of the movement direction of the drive motor 2 and the transmission shaft 3. Under the damping support of the dampers 18 on both sides, the drive motor 2 has a supporting effect when rotating in a fixed position. The damping force is set to be less than the pushing or pressure generated by gear meshing, so as to ensure the stability and reliability of the drive motor 2 when rotating in a fixed position.

[0043] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An automatically lifting rotary drum front fan, comprising a body (1), a drive motor (2), and a transmission shaft (3), characterized in that, The transmission shaft (3) is installed at the output end of the drive motor (2). The body (1) is sleeved and installed on the outside of the transmission shaft (3). A transmission gear (4) is sleeved on the outside of the end of the transmission shaft (3) away from the drive motor (2). A fixed frame (5) is inserted into the transmission shaft (3). The transmission gear (4) is rotatably disposed inside the fixed frame (5). The transmission gear (4) is meshed with a meshing tooth plate (9). Several movable frames (10) are installed on the outer side of the meshing tooth plate (9). The movable frames (10) extend out of the outside of the fixed frame (5). A drive block (11) is slidably inserted into the lower side of the movable frame (10). Several drive blocks (11) are simultaneously connected to a connecting plate (12). A guide block (13) is provided below the drive block (11).

2. The automatically lifting rotary drum front fan according to claim 1, characterized in that, At least two clamping plates (6) are installed on the outer surface of the fixed frame (5), the transmission shaft (3) is located between the clamping plates (6) on both sides, and the outer surface of the transmission gear (4) is in contact with the inner surface of the clamping plate (6).

3. The automatically lifting rotary drum front fan according to claim 1, characterized in that, The outer end surface of the drive shaft (3) is rotatably connected to a rotating disk (7), and the rotating disk (7) is slidably connected to a guide rod (8). The guide rod (8) is installed on one side of the inner wall of the fixed frame (5), and the outer surface of the rotating disk (7) is in contact with one side surface of the drive gear (4).

4. The automatically lifting rotary drum front fan according to claim 1, characterized in that, A support groove is provided through one side of the fixed frame (5), and the movable frame (10) extends through to the outside of the support groove.

5. The automatically lifting rotary drum front fan according to claim 1, characterized in that, The movable frame (10) and the drive block (11) are inclined in opposite directions on the adjacent side, and a limiting guide rail is installed on the side of the movable frame (10) near the drive block (11). A limiting guide groove is opened on the side of the drive block (11) near the movable frame (10), and the limiting guide rail is slidably installed inside the limiting guide groove.

6. The automatically lifting rotary drum front fan according to claim 1, characterized in that, The guide block (13) is tilted, and a limit strip is installed on the upper surface of the guide block (13). The drive block (11) has a limit groove on the side near the limit strip, and the width of the limit groove is greater than the width of the limit strip.

7. The automatically lifting rotary drum front fan according to claim 1, characterized in that, A guide frame (14) is provided on one side of the guide block (13), a limiting guide rail is installed on the lower surface of the drive block (11), and a limiting guide groove is provided inside the guide frame (14).

8. The automatically lifting rotary drum front fan according to claim 1, characterized in that, The fixed frame (5) is equipped with rotating support frames (15) at both ends on one side, and a number of limiting strips (16) are installed on the inner arc-shaped side of the upper rotating support frame (15).

9. The automatically lifting rotary drum front fan according to claim 1, characterized in that, An auxiliary frame (17) is provided on one side of the fixed frame (5). The drive motor (2) is slidably disposed inside the auxiliary frame (17) via a support block. Damperes (18) are installed on both sides of the auxiliary frame (17), and the support block is located between the two dampers (18).

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