Three-blade Roots blower with good protective property

Abstract

The utility model relates to the technical field of three-blade Roots blowers, and discloses a three-blade Roots blower with good protection performance, which comprises a gear rotationally connected to the inner bottom surface of a cavity; the rack I is connected into the cavity in a sliding manner, and the rack I is meshed with the gear; the second rack is connected into the cavity in a sliding mode, and the second rack is meshed with the gear; the push plates are fixedly connected to different ends of the rack I and the rack II respectively; the fixed rod is fixedly connected to the different surface of the push plate; the fixed blind holes are formed in the front and rear inner walls of the protective shell; and the driving mechanism is arranged on the cavity and the gear. When maintenance is needed, a driving motor rotates reversely, a gear rotates anticlockwise, a first rack and a second rack drive a push plate to get close to each other, the push plate drives a fixing rod to be separated from a fixing blind hole and retract into a cavity, and the three-blade Roots blower body is protected through the protective shell. And at the moment, the two protective shells are not limited by the fixing rods and can be detached from the bottom plate, so that workers can conveniently overhaul the three-blade Roots blower body.

Description

Technical Field

[0001] The utility model relates to the technical field of three-leaf Roots blowers, in particular to a three-leaf Roots blower with good protection. Background Art

[0002] The three-leaf Roots blower is a double-impeller synchronous compression machine. Each three-leaf rotor is supported by two bearings. A pair of synchronous gears is used to keep the relative position of the two rotors unchanged. It is a positive displacement blower with forced air transmission characteristics. As a rotary machine, the three-leaf Roots blower has relatively stable working characteristics. There are small gaps between the three-leaf Roots blower rotors, the rotors and the pump body, and the rotors and the side covers, so there is no friction in the working chamber and no contact wear parts; the three-leaf Roots blower is economical and durable, does not require lubrication, has a long service life, and has good dynamic balance. There are six suction and exhaust processes in one week of operation, and the volumetric efficiency is high.

[0003] With the continuous advancement of science and technology, the application field of three-leaf Roots blowers has been continuously expanded, and blowers are used more and more widely in people's lives. In order to better protect the three-leaf Roots blowers, protective devices are often added to the outside of the three-leaf Roots blowers. However, most of the existing protective devices are fixedly installed on the outside of the blower, which is complicated to disassemble, so it is not convenient for the staff to inspect and repair the blower. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a three-blade Roots blower with good protection, which has the advantage of being easy to disassemble and solves the problem that the existing protective devices mostly adopt a fixed installation method when protecting the blower, which is difficult to disassemble and therefore inconvenient for staff to carry out timely maintenance.

[0006] (II) Technical solution

[0007] To achieve the above object, the utility model provides the following technical solution: a three-leaf Roots blower with good protection, comprising a main body component, the main body component comprising:

[0008] A bottom plate, on the top of which a three-leaf Roots blower body is arranged;

[0009] A protective shell is movably connected to the bottom plate and the outside of the three-leaf Roots blower body, the protective shell is a left and right two-piece design, and a through hole is opened on the protective shell for the movement of the air outlet and the air inlet of the three-leaf Roots blower body;

[0010] The bottom plate and the protective shell are provided with detachable components, and the detachable components include:

[0011] A cavity is arranged inside the bottom plate;

[0012] A gear, rotatably connected to the inner bottom surface of the cavity;

[0013] Rack 1, slidably connected in the cavity, the rack 1 meshing with the gear;

[0014] Rack 2 is slidably connected in the cavity, and the rack 2 is meshed with the gear;

[0015] Push plates are fixedly connected to the opposite ends of the rack 1 and the rack 2 respectively;

[0016] A fixing rod, fixedly connected to the different surface of the push plate, the fixing rod passes through the cavity and extends to the outside of the bottom plate;

[0017] Fixed blind holes are opened on the inner walls of the front and rear sides of the protective shell;

[0018] The driving mechanism is arranged on the cavity and the gear.

[0019] Preferably, the driving mechanism comprises:

[0020] A rotating shaft, fixedly connected to the top of the gear;

[0021] A worm gear fixedly connected to the outside of the rotating shaft;

[0022] A motor, arranged on the inner wall of the cavity;

[0023] A worm has one end rotatably connected to the inner wall of the cavity and the other end fixedly connected to the motor output shaft, and the worm is meshed with the worm wheel.

[0024] Preferably, the fixing rods and the fixing blind holes are symmetrically provided in multiple groups, and at least two groups are provided.

[0025] Preferably, the outer side wall of the bottom plate is symmetrically provided with sliding blocks, the inner walls of the front and rear sides of the protective shell are provided with sliding grooves, and the sliding blocks are slidably connected to the sliding grooves.

[0026] Preferably, a sound insulation layer is fixedly connected to the inner wall of the protective shell.

[0027] Preferably, a handle is fixedly connected to the top of the protective shell.

[0028] (III) Beneficial effects

[0029] Compared with the prior art, the utility model provides a three-leaf Roots blower with good protection, which has the following beneficial effects:

[0030] The three-leaf Roots blower has the advantage of being easy to disassemble. The staff covers the two protective shells on the outside of the base plate respectively, and uses the detachable components to install the protective shells on the base plate. The protective shells protect the three-leaf Roots blower body to prevent the three-leaf Roots blower body from being hit and affecting its normal use. When the staff needs to inspect the three-leaf Roots blower body: the drive motor rotates in the opposite direction, the motor linkage gear rotates counterclockwise, and the racks 1 and 2 on both sides drive the push plates to approach each other. The push plates drive the fixed rods to disengage from the fixed blind holes and retract into the cavity. At this time, the two protective shells lose the limit of the fixed rods and can be removed from the base plate, which is convenient for the staff to inspect the three-leaf Roots blower body. This solves the problem that the existing protective devices mostly use a fixed installation method when protecting the blower, which is difficult to disassemble, so it is not convenient for the staff to carry out timely maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the protective shell separation structure in the utility model;

[0032] Figure 2 It is a schematic diagram of the protective structure of the protective shell in the utility model;

[0033] Figure 3 It is a left side schematic diagram of the internal structure of the bottom plate in the utility model;

[0034] Figure 4 It is a right side schematic diagram of the internal structure of the bottom plate in the present utility model.

[0035] In the figure:

[0036] 1. Main assembly; 11. Bottom plate; 12. Three-leaf Roots blower body; 13. Protective shell; 131. Handle;

[0037] 2. Removable components; 211. Cavity; 21. Gear; 22. Rack 1; 23. Rack 2; 24. Push plate; 25. Fixed rod; 251. Fixed blind hole; 26. Driving mechanism; 261. Rotating shaft; 262. Worm gear; 263. Motor; 264. Worm; 27. Slider; 271. Slide;

[0038] 3. Sound insulation layer. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0040] Embodiment 1

[0041] See also Figure 1-4 A three-leaf Roots blower with good protection performance comprises a main body component 1, wherein the main body component 1 comprises: a bottom plate 11, a top of which is provided with a protective shell 13 for a three-leaf Roots blower body 12, which is movably connected to the bottom plate 11 and the outside of the three-leaf Roots blower body 12, the protective shell 13 is a left and right two-piece design, and a through hole is opened on the protective shell 13 for the three-leaf Roots blower body 12 to move the air outlet and the air inlet; a detachable component 2 is provided on the bottom plate 11 and the protective shell 13, and the detachable component 2 comprises: a cavity 211, which is provided inside the bottom plate 11; a gear 21, which is rotatably connected to the cavity 211 Inner bottom surface; rack one 22, slidably connected in the cavity 211, the rack one 22 is meshed with the gear 21; rack two 23, slidably connected in the cavity 211, the rack two 23 is meshed with the gear 21; push plate 24, respectively fixedly connected to the different ends of the rack one 22 and the rack two 23; a fixing rod 25, fixedly connected to the different surfaces of the push plate 24, the fixing rod 25 passes through the cavity 211 and extends to the outside of the bottom plate 11; a fixing blind hole 251, opened on the inner walls of the front and rear sides of the protective shell 13; a driving mechanism 26, arranged on the cavity 211 and the gear 21. The driving mechanism 26 includes: a rotating shaft 261, fixedly connected to the top of the gear 21; a worm wheel 262, fixedly connected to the outside of the rotating shaft 261; a motor 263, arranged on the inner wall of the cavity 211; a worm 264, one end of which is rotatably connected to the inner wall of the cavity 211 and the other end of which is fixedly connected to the output shaft of the motor 263, and the worm 264 is meshed with the worm wheel 262. The fixing rod 25 and the fixing blind hole 251 are symmetrically provided with multiple groups, and at least two groups are provided.

[0042] When in use, first use the detachable component 2 to install the protective shell 13 above the bottom plate 11: the staff will cover the two protective shells 13 on the outside of the bottom plate 11 respectively, and use the driving mechanism 26 to drive the gear 21 to rotate: start the motor 263, the motor 263 drives the worm 264 to rotate, and the worm wheel 262 meshing with the worm 264 drives the rotating shaft 261 to rotate. Since the rotating shaft 261 is fixedly connected to the gear 21, the gear 21 rotates. When the gear 21 rotates clockwise, the meshing rack 1 22 and rack 2 23 on both sides thereof move in opposite directions at the same time, driving the two push plates 24 away from each other, and the fixing rod 25 on the push plate 24 extends outward until it enters the fixed blind hole 251, and the two pieces are fixed at the same time. Installation of the protective shell 13, the protective shell 13 protects the three-leaf Roots blower body 12 to prevent the three-leaf Roots blower body 12 from being hit and affecting its normal use. The detachable component 2 facilitates the removal of the protective shell 13 from the bottom plate 11, which is convenient for the staff to inspect the three-leaf Roots blower body 12: the drive motor 263 rotates in the opposite direction, the motor 263 links the gear 21 to rotate counterclockwise, the racks 1 22 and the racks 23 on both sides drive the push plates 24 to approach each other, and the push plates 24 drive the fixing rods 25 to disengage from the fixing blind holes 251 and retract into the cavity 211. At this time, the two pieces of protective shells 13 lose the limit of the fixing rods 25 and can be removed from the bottom plate 11, which is convenient for the staff to inspect the three-leaf Roots blower body 12. The fixing rods 25 and the fixing blind holes 251 are symmetrically arranged in multiple groups, which increases the area of ​​the protective shell 13 restricted by the fixing rods 25 and improves the stability of the protective shell 13 after installation.

[0043] Embodiment 2

[0044] On the basis of the first embodiment, an auxiliary function is added.

[0045] See also Figure 1-4 The outer wall of the bottom plate 11 is symmetrically provided with sliders 27, and the inner walls of the front and rear sides of the protective shell 13 are provided with slide grooves 271, and the sliders 27 are slidably connected to the slide grooves 271. The inner wall of the protective shell 13 is fixedly connected with a sound insulation layer 3. The top of the protective shell 13 is fixedly connected with a handle 131.

[0046] Before installing the protective shell 13, the staff aligns the slide groove 271 with the sliders 27 on both sides, pushes the protective shell 13 inward, and the slider 27 slides into the slide groove 271, and the protective shell 13 is sleeved on the outside of the bottom plate 11. The setting of the slider 27 and the slide groove 271 facilitates the alignment of the fixed blind hole 251 with the fixed rod 25, thereby improving the efficiency of fixing the fixed rod 25. The sound insulation layer 3 isolates the noise generated by the three-leaf Roots blower body 12 during operation to a certain extent, thereby reducing the noise pollution generated by the three-leaf Roots blower body 12 when in use. The handle 131 facilitates the staff to complete the installation and removal operations of the two protective shells 13, thereby increasing the convenience of use.

[0047] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A three-leaf Roots blower with good protection, comprising a main assembly (1), wherein the main assembly (1) comprises: A bottom plate (11) with a three-leaf Roots blower body (12) disposed on the top; A protective shell (13) is movably connected to the bottom plate (11) and the outside of the three-leaf Roots blower body (12); the protective shell (13) is a left-right two-piece design; and a through hole is provided on the protective shell (13) for the air outlet and the air inlet of the three-leaf Roots blower body (12) to move; The invention is characterized in that: a detachable component (2) is arranged on the bottom plate (11) and the protective shell (13), and the detachable component (2) comprises: A cavity (211) is arranged inside the bottom plate (11); A gear (21) rotatably connected to the inner bottom surface of the cavity (211); A rack (22) is slidably connected in the cavity (211), and the rack (22) is meshed with the gear (21); A second rack (23) is slidably connected in the cavity (211), and the second rack (23) is meshed with the gear (21); A push plate (24) is fixedly connected to different ends of the rack 1 (22) and the rack 2 (23); A fixing rod (25) fixedly connected to a different surface of the push plate (24), wherein the fixing rod (25) passes through the cavity (211) and extends to the outside of the bottom plate (11); Fixed blind holes (251) are formed on the inner walls of the front and rear sides of the protective shell (13); The driving mechanism (26) is arranged on the cavity (211) and the gear (21).

2. A three-leaf Roots blower with good protection according to claim 1, characterized in that: The driving mechanism (26) comprises: A rotating shaft (261) is fixedly connected to the top of the gear (21); A worm gear (262) is fixedly connected to the outside of the rotating shaft (261); A motor (263) is arranged on the inner wall of the cavity (211); A worm (264) has one end rotatably connected to the inner wall of the cavity (211) and the other end fixedly connected to the output shaft of the motor (263). The worm (264) is meshed with the worm wheel (262).

3. A three-leaf Roots blower with good protection according to claim 2, characterized in that: The fixing rods (25) and the fixing blind holes (251) are symmetrically provided in multiple groups, and at least two groups are provided.

4. A three-leaf Roots blower with good protection according to claim 3, characterized in that: The outer wall of the bottom plate (11) is symmetrically provided with sliding blocks (27), the inner walls of the front and rear sides of the protective shell (13) are provided with sliding grooves (271), and the sliding blocks (27) are slidably connected to the sliding grooves (271).

5. A three-leaf Roots blower with good protection according to claim 4, characterized in that: The inner wall of the protective shell (13) is fixedly connected with a sound insulation layer (3).

6. A three-leaf Roots blower with good protection according to claim 5, characterized in that: The top of the protective shell (13) is fixedly connected with a handle (131).

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