Electric arm of laser particle analyzer

Abstract

The utility model relates to the technical field of laser particle size analyzers, in particular to an electric arm of a laser particle size analyzer, which not only enlarges the limitation of the electric arm on the adjustment range of the laser particle size analyzer so that the laser particle size analyzer is more flexible to use, but also increases necessary protective measures so as to avoid damage caused by sudden falling of the laser particle size analyzer. Comprising a control mechanism; the laser particle analyzer further comprises a lifting mechanism, a rotating mechanism, a connecting mechanism and a protection mechanism, the lifting mechanism is installed on the control mechanism and adjusts the height of the laser particle analyzer, the rotating mechanism is installed on the lifting mechanism and adjusts the pitching angle of the laser particle analyzer, and the connecting mechanism is installed on the rotating mechanism and drives the laser particle analyzer to rotate. The protection mechanism is installed on the control mechanism and prevents the laser particle analyzer from falling off and being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of laser particle size analyzers, in particular to an electric arm of a laser particle size analyzer. Background Art

[0002] The laser particle size analyzer is a precision instrument used to measure particle size distribution. It works based on laser technology and optical principles. When the laser beam is irradiated onto the sample particles, the particles will scatter light signals. The detector will measure and record these light signals, and through computer processing, use optical principles or mathematical algorithms to calculate the particle size distribution.

[0003] The existing electric arm of the laser particle size analyzer, such as the electric arm of the laser particle size analyzer disclosed in the utility model patent application number 201220102491.7, has a main structure including a mechanical arm and a handheld controller. The mechanical arm includes a base, a back plate is vertically provided on the upper rear side of the base, a stepper motor is provided on the base, a driving shaft of the stepper motor is vertically connected to a lead screw, a movable arm is threadedly connected to the lead screw and can be raised and lowered along the lead screw when the lead screw rotates, the two sides of the movable arm are fixed together with the slider, and slide rails for the slider to slide up and down are vertically provided on both sides of the stepper motor, and a driving screw is provided on the back plate. The controller is connected to the stepper motor and the voltage-regulated power supply, the voltage-regulated power supply is connected to the driver, and the driver is connected to the stepper motor; when in use, press the up button, the controller transmits an up command to the driver, the driver performs an up operation on the stepper motor, the moving arm performs an up movement, the cantilever performs a lifting action, the agitator of the laser particle size analyzer is lifted, and when it reaches the highest point, the lifting operation is automatically stopped; press the down button, the controller transmits a down command to the driver, the driver performs a down operation on the stepper motor, the moving arm performs a down movement, the cantilever performs a pressing action, the agitator of the laser particle size analyzer is pressed, and when it reaches the lowest end, it automatically stops falling.

[0004] However, the existing electric arm has a limited adjustment range, making it difficult to drive the laser particle size analyzer to tilt and rotate, etc., and lacks necessary protective measures, which can easily cause the laser particle size analyzer to fall and be damaged. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides an electric arm for a laser particle size analyzer, which not only increases the adjustment range of the electric arm on the laser particle size analyzer, making the laser particle size analyzer more flexible to use, but also adds necessary protective measures to prevent the laser particle size analyzer from being damaged by sudden falling.

[0006] The utility model discloses an electric arm of a laser particle size analyzer, comprising a control mechanism, a lifting mechanism, a rotating mechanism, a connecting mechanism and a protective mechanism. The lifting mechanism is mounted on the control mechanism and adjusts the height of the laser particle size analyzer, the rotating mechanism is mounted on the lifting mechanism and adjusts the pitch angle of the laser particle size analyzer, the connecting mechanism is mounted on the rotating mechanism and drives the laser particle size analyzer to rotate, and the protective mechanism is mounted on the control mechanism and prevents the laser particle size analyzer from falling and being damaged. A staff member fixes the laser particle size analyzer on the connecting mechanism and fixes the protective mechanism to be connected with the laser particle size analyzer, and then the staff member uses the control mechanism to control the lifting mechanism to adjust the height of the laser particle size analyzer and uses the rotating mechanism to adjust the pitch angle and the external probe length of the laser particle size analyzer. At the same time, the staff member can manually rotate the connecting mechanism to conveniently change the working angle of the laser particle size analyzer.

[0007] Preferably, the control mechanism includes four groups of supporting legs, a base, a back plate, a controller and a protective cover. The bottom ends of the four groups of supporting legs are connected to the working surface, the bottom end of the base is connected to the top ends of the four groups of supporting legs, the bottom end of the back plate is connected to the top end of the base, the controller is installed on the back plate, and the protective cover is installed on the back plate. The staff places the base on the working surface and uses the four groups of supporting legs to adjust the base to a horizontal and stable state. Then the staff controls the position of the laser particle size analyzer through the controller, and sets a protective cover to prevent the laser particle size analyzer from hitting the controller when it falls.

[0008] Preferably, the base and the protective cover are both paved with rubber pads; the rubber pads can reduce the impact force when the laser particle size analyzer falls, thereby protecting the laser particle size analyzer.

[0009] Preferably, the lifting mechanism includes a stepper motor, a reducer, two sets of guide rods, a screw, a movable seat and a positioning block. The bottom end of the stepper motor is connected to the top of the back plate, the bottom end of the reducer is connected to the top of the back plate, the bottom ends of the two sets of guide rods are connected to the top of the base, the screw is rotatably installed on the base and longitudinally connected to the reducer, the movable seat is slidably installed between the two sets of guide rods, a positioning groove is opened on the back plate, the positioning block is installed on the movable seat and slidably installed in the positioning groove of the back plate; the staff controls the stepper motor through the controller, the stepper motor drives the screw to rotate through the reducer, and the screw drives the movable seat to rise and fall along the two sets of guide rods, which is convenient for driving the laser particle size analyzer to move up and down, and the stability of the movable seat during the up and down movement is enhanced by setting the positioning block.

[0010] Preferably, the rotating mechanism includes a transmission shaft, a servo motor, a first fixed plate, a telescopic plate, four groups of ear buckles, two groups of connecting shafts and two groups of electric cylinders. The transmission shaft is rotatably mounted on the movable seat, the servo motor is mounted on the movable seat and connected to the transmission shaft, the first fixed plate is mounted on the transmission shaft, the telescopic plate is slidably mounted on the first fixed plate, two groups of ear buckles are respectively mounted on the first fixed plate and the telescopic plate, the connecting shaft is mounted on the two groups of ear buckles located on the same side, and the two groups of electric cylinders are connected and mounted between the two groups of connecting shafts; the controller controls to start the servo motor, the servo motor drives the transmission shaft and the first fixed plate to rotate, adjusts the pitch angle of the laser particle size analyzer, and when the laser particle size analyzer needs to be extended outward, the two groups of electric cylinders are started, and the two groups of electric cylinders push the ear buckles and the connecting shaft on the telescopic plate to push the telescopic plate and the connecting mechanism, so that the laser particle size analyzer extends outward.

[0011] Preferably, the connecting mechanism includes a rotating shaft, a connecting plate and two sets of ribs. The rotating shaft is rotatably mounted on the telescopic plate, the connecting plate is mounted on the rotating shaft, and the two sets of ribs are connected and mounted between the rotating shaft and the connecting plate. The staff uses bolts to fix the laser particle size analyzer on the connecting plate. When the laser particle size analyzer needs to be rotated, the staff pushes the connecting plate to drive the rotating shaft to rotate. The stability of the rotating shaft and the connecting plate is improved by setting two sets of ribs.

[0012] Preferably, the protective mechanism includes a bracket, a winding roller, a spring, a second fixed plate, a safety rope, a hook and a safety buckle. The bracket is mounted on the back plate, the winding roller is rotatably mounted on the bracket, the spring is mounted on the bracket, the second fixed plate is mounted on the winding roller and connected to the spring, one end of the safety rope is fixedly mounted on the winding roller, the hook is connected to the other end of the safety rope, and the safety buckle is rotatably mounted on the hook; the staff hangs the hook on the laser particle size analyzer and uses the safety buckle to buckle the locking hook, pulling the safety rope following the movement of the laser particle size analyzer, the spring pushes the second fixed plate, and the second fixed plate drives the winding roller to rotate to reel in the excess safety rope. When the laser particle size analyzer suddenly falls off from the connecting plate, the safety rope can protect it and slow down the falling speed of the laser particle size analyzer.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the staff fixes the laser particle size analyzer on the connecting mechanism and fixes the protective mechanism to be connected to the laser particle size analyzer, and then the staff uses the control mechanism to control the lifting mechanism to adjust the height of the laser particle size analyzer, and uses the rotating mechanism to adjust the pitch angle and external detection length of the laser particle size analyzer. At the same time, the staff can manually rotate the connecting mechanism to conveniently change the working angle of the laser particle size analyzer. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural diagram of the present utility model;

[0015] Figure 2 This is an axonometric structural diagram of the control mechanism and lifting mechanism of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-section axonometric structure of the lifting mechanism and the rotating mechanism of the utility model;

[0017] Figure 4 It is a partially enlarged isometric structural diagram of the rotating mechanism and the connecting mechanism of the utility model;

[0018] Figure 5 It is a partially enlarged sectional axonometric structural diagram of the protective mechanism of the utility model.

[0019] Markings in the accompanying drawings: 01, control mechanism; 11, supporting leg; 12, base; 13, back plate; 14, controller; 15, protective cover; 02, lifting mechanism; 21, stepping motor; 22, reducer; 23, guide rod; 24, screw; 25, moving seat; 26, positioning block; 03, rotating mechanism; 31, transmission shaft; 32, servo motor; 33, first fixed plate; 34, telescopic plate; 35, ear buckle; 36, connecting shaft; 37, electric cylinder; 04, connecting mechanism; 41, rotating shaft; 42, connecting plate; 43, rib; 05, protective mechanism; 51, bracket; 52, winding roller; 53, spring; 54, second fixed plate; 55, safety rope; 56, hook; 57, safety buckle. DETAILED DESCRIPTION

[0020] To facilitate understanding of the present invention, a more comprehensive description of the present invention will be provided below with reference to the accompanying drawings. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and comprehensive understanding of the present invention.

[0021] Example 1

[0022] The utility model discloses an electric arm of a laser particle size analyzer, comprising a control mechanism 01; a lifting mechanism 02, a rotating mechanism 03, a connecting mechanism 04 and a protective mechanism 05. The lifting mechanism 02 is mounted on the control mechanism 01 and adjusts the height of the laser particle size analyzer; the rotating mechanism 03 is mounted on the lifting mechanism 02 and adjusts the pitch angle of the laser particle size analyzer; the connecting mechanism 04 is mounted on the rotating mechanism 03 and drives the laser particle size analyzer to rotate; the protective mechanism 05 is mounted on the control mechanism 01 and prevents the laser particle size analyzer from falling and being damaged; the control mechanism 01 comprises four groups of supporting legs 11, a base 12, a back The bottom ends of the four groups of support legs 11 are connected to the working surface, the bottom ends of the base 12 are connected to the top ends of the four groups of support legs 11, the bottom end of the back plate 13 is connected to the top end of the base 12, the controller 14 is installed on the back plate 13, and the protective cover 15 is installed on the back plate 13; the lifting mechanism 02 includes a stepper motor 21, a reducer 22, two groups of guide rods 23, a lead screw 24, a moving seat 25 and a positioning block 26, the bottom end of the stepper motor 21 is connected to the top end of the back plate 13, the bottom end of the reducer 22 is connected to the top end of the back plate 13, the two groups of guide rods 23 are connected to the bottom end of the reducer 22. The bottom ends are connected to the top of the base 12, the lead screw 24 is rotatably mounted on the base 12 and longitudinally connected to the reducer 22, the moving seat 25 is slidably mounted between the two sets of guide rods 23, a positioning groove is opened on the back plate 13, the positioning block 26 is mounted on the moving seat 25 and slidably mounted in the positioning groove of the back plate 13; the rotating mechanism 03 includes a transmission shaft 31, a servo motor 32, a first fixed plate 33, a telescopic plate 34, four sets of ear buckles 35, two sets of connecting shafts 36 and two sets of electric cylinders 37, the transmission shaft 31 is rotatably mounted on the moving seat 25, the servo motor 32 is mounted on the moving seat 25 and The transmission shaft 31 is connected, the first fixed plate 33 is installed on the transmission shaft 31, the telescopic plate 34 is slidably installed on the first fixed plate 33, two sets of ear buckles 35 are installed on the first fixed plate 33 and the telescopic plate 34 respectively, the connecting shaft 36 is installed on the two sets of ear buckles 35 located on the same side, and the two sets of electric cylinders 37 are connected and installed between the two sets of connecting shafts 36; the connecting mechanism 04 includes a rotating shaft 41, a connecting plate 42 and two sets of ribs 43, the rotating shaft 41 is rotatably installed on the telescopic plate 34, the connecting plate 42 is installed on the rotating shaft 41, and the two sets of ribs 43 are connected and installed between the rotating shaft 41 and the connecting plate 42;When the laser particle size analyzer is working, first, the staff places the base 12 on the work surface, uses the four sets of support legs 11 to adjust the base 12 to a horizontal and stable state, and uses bolts to fix the laser particle size analyzer on the connecting plate 42. When the laser particle size analyzer needs to be rotated, the staff pushes the connecting plate 42 to drive the rotating shaft 41 to rotate. The stability of the rotating shaft 41 and the connecting plate 42 is improved by setting two sets of ribs 43. Then, the staff controls the position of the laser particle size analyzer through the controller 14, and sets the protective cover 15 to prevent the laser particle size analyzer from hitting the controller 14 when it falls. The staff controls the stepper motor 21 through the controller 14, and the stepper motor 21 The reducer 22 drives the lead screw 24 to rotate, which in turn drives the movable base 25 along the two sets of guide rods 23, facilitating the vertical movement of the laser particle size analyzer. Positioning blocks 26 enhance the stability of the movable base 25 during its vertical movement. The controller 14 activates the servo motor 32, which drives the transmission shaft 31 and the first fixed plate 33 to rotate, adjusting the pitch angle of the laser particle size analyzer. To extend the laser particle size analyzer, the two sets of electric cylinders 37 are activated. These push the ear clips 35 and connecting shaft 36 on the telescopic plate 34, thereby pushing the telescopic plate 34 and the connecting mechanism 04, causing the laser particle size analyzer to extend outward.

[0023] Example 2

[0024] like Figures 1 to 5As shown, the utility model is a laser particle size analyzer electric arm, based on Example 1; it also includes a base 12 and a protective cover 15 surface are paved with rubber cushions; the protective mechanism 05 includes a bracket 51, a winding roller 52, a spring 53, a second fixed plate 54, a safety rope 55, a hook 56 and a safety buckle 57, the bracket 51 is mounted on the back plate 13, the winding roller 52 is rotatably mounted on the bracket 51, the spring 53 is mounted on the bracket 51, the second fixed plate 54 is mounted on the winding roller 52 and connected to the spring 53, one end of the safety rope 55 is fixedly mounted on the winding roller 52, and the hook 56 is connected to the other end of the safety rope 55 The safety buckle 57 is rotatably mounted on the hook 56; when it is working, first, the staff places the base 12 on the work surface, uses the four sets of support legs 11 to adjust the base 12 to a horizontal and stable state, and uses bolts to fix the laser particle size analyzer on the connecting plate 42. When the laser particle size analyzer needs to be rotated, the staff pushes the connecting plate 42 to drive the rotating shaft 41 to rotate. The stability of the rotating shaft 41 and the connecting plate 42 is improved by setting two sets of ribs 43. Then the staff controls the position of the laser particle size analyzer through the controller 14, and prevents the laser particle size analyzer from hitting the controller 14 when it falls by setting the protective cover 15. The personnel controls the stepper motor 21 through the controller 14. The stepper motor 21 drives the screw 24 to rotate through the reducer 22. The screw 24 drives the moving seat 25 to move up and down along the two sets of guide rods 23, which is convenient for driving the laser particle size analyzer to move up and down. The stability of the moving seat 25 during the up and down movement is enhanced by setting the positioning block 26. The controller 14 controls the start of the servo motor 32. The servo motor 32 drives the transmission shaft 31 and the first fixed plate 33 to rotate to adjust the pitch angle of the laser particle size analyzer. When the laser particle size analyzer needs to be extended, the two sets of electric cylinders 37 are started. The two sets of electric cylinders 37 push the ear buttons 35 and the connecting rods on the telescopic plate 34. The shaft 36 pushes the telescopic plate 34 and the connecting mechanism 04 to extend the laser particle size analyzer outward. The staff hangs the hook 56 on the laser particle size analyzer and uses the safety buckle 57 to lock the locking hook 56. Following the movement of the laser particle size analyzer, the safety rope 55 is pulled. The spring 53 pushes the second fixed plate 54, and the second fixed plate 54 drives the winding roller 52 to rotate and rewind the excess safety rope 55. When the laser particle size analyzer suddenly falls off the connecting plate 42, the safety rope 55 can protect it and slow down the falling speed of the laser particle size analyzer. By laying a rubber cushion, the impact force of the laser particle size analyzer when it falls can be slowed down, thereby protecting the laser particle size analyzer.

[0025] The stepper motor 21, reducer 22 and servo motor 32 of the present invention are purchased on the market, and technicians in this industry only need to install and operate them according to the accompanying instruction manuals without the need for creative work by technicians in this field.

[0026] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A laser particle size analyzer electric arm, comprising a control mechanism (01); characterized in that: The utility model also includes a lifting mechanism (02), a rotating mechanism (03), a connecting mechanism (04) and a protective mechanism (05). The lifting mechanism (02) is installed on the control mechanism (01) and adjusts the height of the laser particle size analyzer. The rotating mechanism (03) is installed on the lifting mechanism (02) and adjusts the pitch angle of the laser particle size analyzer. The connecting mechanism (04) is installed on the rotating mechanism (03) and drives the laser particle size analyzer to rotate. The protective mechanism (05) is installed on the control mechanism (01) and prevents the laser particle size analyzer from falling and being damaged.

2. The electric arm of a laser particle size analyzer according to claim 1, characterized in that: The control mechanism (01) comprises four groups of support legs (11), a base (12), a back plate (13), a controller (14) and a protective cover (15). The bottom ends of the four groups of support legs (11) are connected to the working surface, the bottom end of the base (12) is connected to the top ends of the four groups of support legs (11), the bottom end of the back plate (13) is connected to the top end of the base (12), the controller (14) is installed on the back plate (13), and the protective cover (15) is installed on the back plate (13).

3. The electric arm of a laser particle size analyzer according to claim 2, characterized in that: The surface of the base (12) and the protective cover (15) are both paved with rubber cushions.

4. The electric arm of a laser particle size analyzer according to claim 2, characterized in that: The lifting mechanism (02) includes a stepper motor (21), a reducer (22), two groups of guide rods (23), a lead screw (24), a movable seat (25) and a positioning block (26). The bottom end of the stepper motor (21) is connected to the top end of the back plate (13), the bottom end of the reducer (22) is connected to the top end of the back plate (13), the bottom ends of the two groups of guide rods (23) are connected to the top end of the base (12), the lead screw (24) is rotatably mounted on the base (12) and longitudinally connected to the reducer (22), the movable seat (25) is slidably mounted between the two groups of guide rods (23), a positioning groove is opened on the back plate (13), and the positioning block (26) is mounted on the movable seat (25) and slidably mounted in the positioning groove of the back plate (13).

5. The electric arm of a laser particle size analyzer according to claim 4, characterized in that: The rotating mechanism (03) comprises a transmission shaft (31), a servo motor (32), a first fixed plate (33), a telescopic plate (34), four groups of ear buttons (35), two groups of connecting shafts (36) and two groups of electric cylinders (37). The transmission shaft (31) is rotatably mounted on the movable seat (25). The servo motor (32) is mounted on the movable seat (25) and connected to the transmission shaft (31). The first fixed plate (33) is mounted on the transmission shaft (31). The telescopic plate (34) is slidably mounted on the first fixed plate (33). Two groups of ear buttons (35) are respectively mounted on the first fixed plate (33) and the telescopic plate (34). The connecting shaft (36) is mounted on the two groups of ear buttons (35) located on the same side. The two groups of electric cylinders (37) are connected and mounted between the two groups of connecting shafts (36).

6. The electric arm of a laser particle size analyzer according to claim 5, characterized in that: The connecting mechanism (04) comprises a rotating shaft (41), a connecting plate (42) and two groups of ribs (43). The rotating shaft (41) is rotatably mounted on the telescopic plate (34). The connecting plate (42) is mounted on the rotating shaft (41). The two groups of ribs (43) are connected and mounted between the rotating shaft (41) and the connecting plate (42).

7. The electric arm of a laser particle size analyzer according to claim 2, characterized in that: The protection mechanism (05) comprises a bracket (51), a winding roller (52), a spring (53), a second fixed plate (54), a safety rope (55), a hook (56) and a safety buckle (57); the bracket (51) is mounted on the back plate (13); the winding roller (52) is rotatably mounted on the bracket (51); the spring (53) is mounted on the bracket (51); the second fixed plate (54) is mounted on the winding roller (52) and connected to the spring (53); one end of the safety rope (55) is fixedly mounted on the winding roller (52); the hook (56) is connected to the other end of the safety rope (55); and the safety buckle (57) is rotatably mounted on the hook (56).

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