A push-button type roller brush test fixture

Abstract

This utility model provides a push-button switch type roller brush test stand, belonging to the field of equipment testing technology. The push-button switch type roller brush test stand includes a concave mounting base, a drive assembly, a roller brush plate, a mandrel, and a positioning sleeve. A locking assembly is provided between the outer end of the positioning sleeve and the end cap, enabling quick connection and separation of the two. The locking assembly includes a snap-fit ​​outer tube fixed inside the positioning sleeve, a snap-fit ​​inner tube protruding from the inner wall of the end cap, and an unlocking block. The snap-fit ​​inner tube can be inserted into the snap-fit ​​outer tube, and a U-shaped spring is embedded inside the snap-fit ​​inner tube. The U-shaped spring has a protruding post. Both the snap-fit ​​outer tube and the snap-fit ​​inner tube have through holes on their peripheral walls for the post to pass through. The unlocking block has a top post; when the unlocking block swings, the top post can squeeze the post, causing it to retract into the snap-fit ​​inner tube. The positioning sleeve and mandrel can be pulled out from the mounting sleeve on the other side of the drive assembly without disassembling the motor of the drive assembly, making installation and disassembly very quick and convenient, improving testing efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of equipment testing technology and relates to a push-button type roller brush test frame. Background Technology

[0002] To improve waste collection efficiency, a rotating brush is typically installed at the front of a water surface cleaning robot. During waste collection, the rotating brush primarily pushes the waste into a collection bin. For example, Chinese utility model patent [Patent No. 202322785915.5] discloses a rotating brush for a water surface cleaning robot. This robot has a rotating brush mounted on its shell, with both ends connected to the shell. Inside the shell is a collection bin with a baffle on one side and an opening extending to the baffle at the top. The rotating brush is positioned above the baffle and includes several blades, each with a hook at one end facing the water-entry side. The brush is hinged to the robot shell via a snap-fit ​​connection to a mounting hole. A motor and a transmission gear are fixedly connected inside the snap-fit ​​hole, meshing with each other. The transmission gear is fixedly connected to the snap-fit ​​connection. Disassembling this brush is inconvenient; the motor must be disassembled first, and then the brush removed from the robot shell. To test the stability of the roller brush mechanism during rotation, it is only necessary to install the roller brush mechanism onto the test equipment. Therefore, a roller brush mechanism that can be installed without disassembling the motor needs to be designed, making the testing of the roller brush mechanism more efficient. Utility Model Content

[0003] The purpose of this invention is to address the aforementioned problems in existing technologies by proposing a push-button type roller brush test frame, which allows for fast installation and disassembly, thereby improving testing efficiency.

[0004] The objective of this utility model can be achieved through the following technical solution: A push-button type roller brush test frame, comprising a concave mounting base, a drive assembly, roller brush plates, a mandrel, and a positioning sleeve, characterized in that the concave mounting base has a left vertical plate and a right vertical plate, the drive assembly is fixed on the outside of the left vertical plate, the right vertical plate has a mounting cylinder, the positioning sleeve is embedded in the mounting cylinder and fixed thereto, several roller brush plates are sleeved on the mandrel and rotate synchronously with the mandrel, one end of the mandrel is poweredly connected to the drive assembly, and the other end of the mandrel is rotatably connected to a bearing, the bearing being snapped into the inner end of the positioning sleeve. A locking assembly is provided between the outer end of the positioning sleeve and the end cap to enable quick connection and separation of the two. The locking assembly includes a snap-fit ​​outer tube fixed inside the positioning sleeve, a snap-fit ​​inner tube protruding from the inner wall of the end cap, and an unlocking block. The snap-fit ​​inner tube can be inserted into the snap-fit ​​outer tube. The unlocking block is rotatably connected to the end cap. A U-shaped spring is embedded in the snap-fit ​​inner tube. The U-shaped spring has a protruding post. Both the snap-fit ​​outer tube and the snap-fit ​​inner tube have through holes on their peripheral walls for the post to pass through. The unlocking block has a top post. When the unlocking block swings, the top post can squeeze the post and cause it to retract into the snap-fit ​​inner tube.

[0005] The locking assembly is used to separate the end cap from the positioning sleeve, facilitating further disassembly of the positioning sleeve. The concave mounting base has a flat bottom, suitable for placement on a table for testing. The drive assembly drives the spindle and the roller brush plate to rotate together. The roller brush plate rotates between the left and right vertical plates, and its rotational stability is tested.

[0006] Furthermore, a square hole is opened on the end cap, and the unlocking block is located in the square hole. The unlocking block is L-shaped, and a spring is provided at the bottom of the square hole, with the outer end of the spring abutting against the unlocking block.

[0007] Furthermore, each side of the inner wall of the snap-fit ​​outer tube has a limiting strip, the cross-section of the snap-fit ​​inner tube is elliptical, and the limiting strip abuts against the side of the snap-fit ​​inner tube.

[0008] Furthermore, the outer end of the positioning sleeve has a horizontally extended flange with a connecting hole on it, and the mounting sleeve has several threaded holes. After the connecting hole and the threaded hole are aligned, they are fastened by inserting bolts.

[0009] Furthermore, the cross-section of the mandrel is a regular hexagon, and protective covers are fitted at both ends of the mandrel. The protective covers have slots that engage with the roller brush plate.

[0010] Furthermore, the drive assembly includes a housing, a motor, a drive shaft, and a screw. The motor is fixed inside the housing, the drive shaft is rotatably connected to the housing, a worm gear is fixed on the drive shaft, the worm meshes with the worm gear, and a hexagonal hole is opened on the drive shaft for inserting a mandrel.

[0011] Furthermore, the roller brush plate has three parts, each with a central hole through which the mandrel passes. The three roller brush plates are arranged in a row and fitted onto the mandrel, rotating synchronously with the mandrel. After the mandrel is removed, the roller brush plates separate from each other, allowing for cleaning or replacement of the roller brush plates.

[0012] Furthermore, the bottom of the concave mounting base has reinforcing ribs. These ribs increase the strength of the concave mounting base.

[0013] During testing, each component must be installed first. The roller brushes are then fitted one by one onto the mandrel. One end of the mandrel engages with the drive shaft of the drive assembly, while the other end is rotatably connected to the positioning sleeve via a bearing. The positioning sleeve is inserted into the mounting cylinder, and the bolts are tightened for fixation. Finally, the inner locking tube of the end cap is inserted into the outer locking tube. The elastic force of the U-shaped spring automatically pushes the pin head into the through hole, locking the end cap and positioning sleeve. The motor is started to rotate the roller brushes, and their rotational stability is observed, such as coaxiality, any abnormal noises or scraping, and whether the end cap will fall off due to vibration. For disassembly after testing, the unlocking block is pressed inward. The unlocking block rotates, compressing the spring. The top pin on the unlocking block presses against the pin head, causing it to retract. Pulling the end cap outward allows it to disengage from the positioning sleeve. The bolts on the positioning sleeve are then loosened, allowing the positioning sleeve to be pulled out of the mounting cylinder, along with the mandrel and roller brushes, completing the disassembly.

[0014] Compared with existing technologies, this push-button type roller brush test stand has the following advantages:

[0015] 1. The spindle and drive shaft are connected by a plug-in method. The positioning sleeve and spindle can be pulled out from the mounting sleeve on the other side of the drive assembly, and the roller brush plate can be removed from the concave mounting bracket without disassembling the motor of the drive assembly. The installation and disassembly are very quick and convenient, improving the testing efficiency.

[0016] 2. Insert the inner snap-fit ​​tube of the end cap into the outer snap-fit ​​tube. The elastic force of the U-shaped spring will automatically push the post head into the through hole, thus locking the end cap and the positioning sleeve. The lock between the end cap and the positioning sleeve can be released by pressing the unlocking block. Both unlocking and locking of the end cap are very convenient. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a roller brush test fixture with a self-locking switch.

[0018] Figure 2 This is a schematic diagram of the concave mounting base.

[0019] Figure 3 A cross-sectional view of this locking component.

[0020] Figure 4 This is a structural diagram of the positioning sleeve.

[0021] Figure 5 This is a schematic diagram of the end cap structure.

[0022] Figure 6 This is a schematic diagram of the unlocking block.

[0023] Figure 7 This is a schematic diagram of the internal structure of the driver component.

[0024] In the diagram, 1. Concave mounting base; 101. Left vertical plate; 102. Right vertical plate; 103. Reinforcing rib; 2. Drive assembly; 21. Housing; 22. Motor; 23. Drive shaft; 24. Screw; 25. Worm gear; 26. Hexagonal hole; 3. Brush plate; 4. Mandrel; 5. Positioning sleeve; 51. Snap-fit ​​outer tube; 52. Limiting stop; 53. Stop edge; 54. Connecting hole; 6. End cap; 61. Snap-fit ​​inner tube; 7. Mounting cylinder; 8. Unlocking block; 81. Top column; 9. U-shaped spring; 91. Column head; 10. Through hole; 11. Spring; 12. Bearing. Detailed Implementation

[0025] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0026] like Figure 1-2 As shown, this push-button type roller brush test stand includes a concave mounting base 1, a drive assembly 2, a roller brush plate 3, a spindle 4, and a positioning sleeve 5. The concave mounting base 1 has a left vertical plate 101 and a right vertical plate 102. The drive assembly 2 is fixed to the outside of the left vertical plate 101. The right vertical plate 102 has a mounting sleeve 7. The positioning sleeve 5 is embedded in the mounting sleeve 7 and fixed to the mounting sleeve 7. The bottom of the concave mounting base 1 has a reinforcing rib 103. The reinforcing rib 103 improves the strength of the concave mounting base 1.

[0027] Several roller brushes 3 are mounted on the spindle 4 and rotate synchronously with the spindle 4. One end of the spindle 4 is connected to the drive assembly 2, and the other end of the spindle 4 is rotatably connected to a bearing 12. The bearing 12 is embedded in the inner end of the positioning sleeve 5. A locking assembly is provided between the outer end of the positioning sleeve 5 and the end cover 6 to quickly connect and separate the two.

[0028] like Figure 3-6 As shown, the locking and unlocking assembly includes a snap-fit ​​outer tube 51 fixed in the positioning sleeve 5, a snap-fit ​​inner tube 61 protruding from the inner wall of the end cap 6, and an unlocking block 8. The snap-fit ​​inner tube 61 can be inserted into the snap-fit ​​outer tube 51. The unlocking block 8 is rotatably connected to the end cap 6. A U-shaped spring 9 is embedded in the snap-fit ​​inner tube 61. The U-shaped spring 9 has a protruding post 91. Both the snap-fit ​​outer tube 51 and the snap-fit ​​inner tube 61 have through holes 10 on their peripheral walls for the post 91 to pass through. The unlocking block 8 has a top post 81. When the unlocking block 8 swings, the top post 81 can squeeze the post 91 to retract it into the snap-fit ​​inner tube 61.

[0029] The locking assembly is used to separate the end cap 6 from the positioning sleeve 5, facilitating further disassembly of the positioning sleeve 5. The bottom of the concave mounting base 1 is flat, suitable for placing on a table for testing. The drive assembly 2 drives the spindle 4 and the roller brush plate 3 to rotate together. The roller brush plate 3 rotates between the left vertical plate 101 and the right vertical plate 102, and its rotational stability is tested.

[0030] The end cap 6 has a square hole, and the unlocking block 8 is located in the square hole. The unlocking block 8 is L-shaped, and a spring 11 is provided at the bottom of the square hole. The outer end of the spring 11 abuts against the unlocking block 8. The inner wall of the snap-fit ​​outer tube 51 has a limiting strip 52 on each side. The cross-section of the snap-fit ​​inner tube 61 is elliptical, and the limiting strip 52 abuts against the side of the snap-fit ​​inner tube 61.

[0031] The outer end of the positioning sleeve 5 has a horizontally extended flange 53, and a connecting hole 54 is opened on the flange 53. The mounting sleeve 7 has several threaded holes. After the connecting hole 54 is aligned with the threaded hole, it is fastened by inserting a bolt.

[0032] The spindle 4 has a regular hexagonal cross-section, and protective covers are fitted at both ends of the spindle 4. The protective covers have slots for engaging with the roller brush plates 3. The drive assembly 2 includes a housing 21, a motor 22, a drive shaft 23, and a screw 24. The motor 22 is fixed inside the housing 21, and the drive shaft 23 is rotatably connected to the housing 21. A worm gear 25 is fixed on the drive shaft 23, and the worm meshes with the worm gear 25. The drive shaft 23 has a hexagonal hole 26 for the spindle 4 to be inserted. There are three roller brush plates 3, each with a central hole through which the spindle 4 passes. The three roller brush plates 3 are arranged in a line on the spindle 4 and rotate synchronously with the spindle 4. After the spindle 4 is removed, the roller brush plates 3 separate, allowing for cleaning or replacement.

[0033] During testing, each component needs to be installed first. First, the roller brushes 3 are fitted one by one onto the spindles 4. One end of the spindle 4 is engaged with the drive shaft 23 of the drive assembly 2, and the other end of the spindle 4 is rotatably connected to the positioning sleeve 5 via the bearing 12. The positioning sleeve 5 is inserted into the mounting sleeve 7, and the bolts are tightened for fixation. Finally, the inner locking tube 61 of the end cap 6 is inserted into the outer locking tube 51. The elastic force of the U-shaped spring 9 automatically pushes the column head 91 into the through hole 10, achieving locking between the end cap 6 and the positioning sleeve 5. The motor 22 is started to rotate the roller brushes 3, and the stability of their rotation is observed, such as coaxiality, whether there are abnormal noises or scraping phenomena, and whether the end cap 6 will fall off during vibration. When disassembly is required after testing, first press the unlocking block 8 inward. The unlocking block 8 rotates, which compresses the spring 11. The top post 81 on the unlocking block 8 presses the post head 91, causing the post head 91 to retract. At this time, pull the end cover 6 outward to disengage the end cover 6 from the positioning sleeve 5. Then unscrew the bolts on the positioning sleeve 5. At this time, the positioning sleeve 5 can be pulled out from the mounting sleeve 7, along with the spindle 4 and the roller brush plate 3, to complete the disassembly.

Claims

1. A push-button type roller brush test frame, comprising a concave mounting base (1), a drive assembly (2), a roller brush plate (3), a spindle (4), and a positioning sleeve (5), characterized in that, The concave mounting base (1) has a left vertical plate (101) and a right vertical plate (102). The drive assembly (2) is fixed on the outside of the left vertical plate (101). The right vertical plate (102) has a mounting sleeve (7). The positioning sleeve (5) is embedded in the mounting sleeve (7) and fixed to the mounting sleeve (7). Several roller brush plates (3) are sleeved on the spindle (4) and rotate synchronously with the spindle (4). One end of the spindle (4) is poweredly connected to the drive assembly (2). The other end of the spindle (4) is rotatably connected to a bearing (12). The bearing (12) is embedded in the inner end of the positioning sleeve (5). A locking assembly is provided between the outer end of the positioning sleeve (5) and the end cover (6) to quickly connect and separate the two. The locking assembly includes The outer tube (51) is fixed in the positioning sleeve (5), the inner tube (61) protruding from the inner wall of the end cap (6) is a snap-fit ​​outer tube (51), and the unlocking block (8) is a locking block (8). The inner tube (61) can be inserted into the outer tube (51). The unlocking block (8) is rotatably connected to the end cap (6). The inner tube (61) is fitted with a U-shaped spring (9). The U-shaped spring (9) has a protruding column head (91). The outer tube (51) and the inner tube (61) are both provided with through holes (10) for the column head (91) to pass through. The unlocking block (8) has a top post (81). When the unlocking block (8) swings, the top post (81) can squeeze the column head (91) and make it retract into the inner tube (61).

2. A press-and-hold switch type roll brush test rack according to claim 1, characterized in that, The end cap (6) has a square hole, and the unlocking block (8) is located in the square hole. The unlocking block (8) is L-shaped, and a spring (11) is provided at the bottom of the square hole. The outer end of the spring (11) abuts against the unlocking block (8).

3. A press-and-hold switch type roll brush test rack according to claim 2, characterized in that, The outer tube (51) has a limiting strip (52) on each side of its inner wall. The inner tube (61) has an elliptical cross section, and the limiting strip (52) abuts against the side of the inner tube (61).

4. The press-to-test roll brush test fixture of claim 3, wherein, The outer end of the positioning sleeve (5) has a horizontally extended flange (53), and a connecting hole (54) is opened on the flange (53). The mounting sleeve (7) has several threaded holes. After the connecting hole (54) is aligned with the threaded hole, it is fastened by inserting a bolt.

5. The press-to-test roll brush test fixture of claim 1, wherein, The cross section of the spindle (4) is a regular hexagon. Protective covers are fitted at both ends of the spindle (4), and the protective covers have slots that fit into the roller brush plate (3).

6. A push-button type roller brush test fixture according to claim 5, characterized in that, The drive assembly (2) includes a housing (21), a motor (22), a drive shaft (23), and a screw (24). The motor (22) is fixed inside the housing (21), the drive shaft (23) is rotatably connected to the housing (21), a worm gear (25) is fixed on the drive shaft (23), the worm meshes with the worm gear (25), and a hexagonal hole (26) is opened on the drive shaft (23) for the insertion of the mandrel (4).

7. A press-and-hold switch type roll brush test rack according to claim 6, wherein, The roller brush plate (3) has three parts, and the roller brush plate (3) has a central hole through which the mandrel (4) passes.

8. The press-to-test roll brush test fixture of claim 1, wherein, The bottom of the concave mounting base (1) has reinforcing ribs (103).

Images