Rapid pressing and fixing structure for wiper motor of engineering machinery cab

Abstract

The utility model relates to a wiper motor quick pressing fixing structure of an engineering machinery cab, which adopts the following technical scheme that the wiper motor quick pressing fixing structure comprises a wiper motor, a circular hoop, a front wall cross beam and a bracket, the bracket is welded on the front wall cross beam, the bracket is provided with a semi-arc groove, the wiper motor is positioned in the semi-arc groove, one end of the circular hoop is fixedly connected with the bracket, and the other end of the circular hoop is fixedly connected with the bracket. The wiper motor is fixed in the middle, and the pressing plate is driven to press downwards by matching a positive and negative thread screw on the pressing fixing mechanism with an internal thread sleeve on the other side, so that the circular hoop is fixed on the bracket, and the wiper motor is fixed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the motor technical field of engineering machinery, especially to a wiper motor quick pressing fixing structure of engineering machinery cab. BACKGROUND

[0002] The fixing of the wiper motor is a key process link in the manufacture of the cab of the special vehicle. The conventional installation mode lacks the combined structure of the round hoop and the bracket, and the conventional fixing method can cause unreasonable motor shaft deflection, thereby affecting the rigidity of the whole motor system and causing the motor system to be prone to failure. This not only shortens the service life of the wiper motor, but also increases the risk in the use process. SUMMARY

[0003] In view of the insufficient rigidity of the existing wiper motor fixing, the utility model provides a wiper motor quick pressing fixing structure of engineering machinery cab through optimization design, so as to improve the rigidity and service life of the fixed wiper motor and realize the functions of quick pressing and convenient installation.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A wiper motor quick pressing fixing structure of engineering machinery cab, comprising a wiper motor, a round hoop, a front wall transverse beam and a bracket, wherein the bracket is welded to the front wall transverse beam, the bracket is provided with a semicircular groove, the wiper motor is located in the semicircular groove, one end of the round hoop is fixedly connected with the bracket, the middle part fixes the wiper motor, the other side is fixed on the bracket through the pressing plate driven by the forward and reverse toothed screw rod on the pressing mechanism and the inner threaded sleeve, so as to realize the fixing of the wiper motor.

[0006] Preferably, the pressing mechanism comprises a U-shaped fixing frame, a forward and reverse toothed screw rod, an inner threaded sleeve, a connecting rod and a pressing plate, the U-shaped fixing frame is fixed on the bracket, the forward and reverse toothed screw rod passes through one side wall of the U-shaped fixing frame and is connected with the other side wall, the inner threaded sleeve is sleeved on both sides of the forward and reverse toothed screw rod, and the two inner threaded sleeves are connected with the pressing plate through the connecting rod.

[0007] Preferably, the two inner threaded sleeves are connected with the forward tooth and the reverse tooth of the forward and reverse toothed screw rod respectively.

[0008] Preferably, the pressing plate is provided with a limiting block on both sides, the U-shaped fixing frame is provided with a sliding groove, and the limiting block moves up and down along the sliding groove.

[0009] Preferably, rubber is pasted in the semicircular groove, and rubber is pasted on the inner side of the round hoop.

[0010] Preferably, the positive and negative toothed screw is provided with a screw part at the end of the outside of the U-shaped fixing frame.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] Simplified structure, easy to operate: the scheme optimizes the fixing structure design of the wiper motor, adopts a round hoop, a bracket and a downward pressing fixing mechanism to directly fasten the motor on the cross beam, this improvement not only significantly improves the rigidity after installation, but also increases the function of rapid downward pressing, makes the whole installation process more simple and convenient, in addition, the design simplifies the installation steps, reduces the implementation difficulty, whether in the installation or disassembly process, it shows higher efficiency and convenience. After this optimization, the wiper motor not only strengthens the structure strength and prolongs the service life, but also has the new characteristics of "rapid downward pressing" which is convenient to operate;

[0013] Enhance rigidity, prolong service life: under the premise of ensuring to meet the actual operation demand, the improvement significantly improves the rigidity and stability of the wiper motor system, thereby effectively prolonging the service life, reducing the maintenance cost and potential failure risk. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the utility model;

[0015] Figure 2 It is Figure 1 It is an enlarged view of A part in the middle;

[0016] Figure 3 It is a connecting schematic view of the downward pressing fixing mechanism in the utility model;

[0017] As shown in the figure: 2, wiper motor; 3, round hoop; 41, U-shaped fixing frame; 42, hexagonal bolt; 43, positive and negative toothed screw; 431, screw part; 44, internally threaded sleeve; 45, connecting rod; 46, fixed seat; 47, pressing plate; 471, limiting block; 5, front wall cross beam; 7, bracket. DETAILED DESCRIPTION

[0018] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the specific implementation, structure, features and effects according to the utility model are described in detail as follows in combination with the drawings and preferred embodiments.

[0019] As Figures 1-3The application discloses a quick pressing fixing structure of a wiper motor of a construction machine cab, which comprises a wiper motor 2, a circular hoop 3, a pressing fixing mechanism, a front wall transverse beam 5 and a bracket 7.

[0020] The pressing fixing mechanism comprises a U-shaped fixing frame 41, a hexagonal bolt 42, a right and left thread screw 43, an internal thread sleeve 44, a connecting rod 45, a fixing base 46 and a pressing plate 47.

[0021] The right and left thread screw 43 passes through the left side wall of the U-shaped fixing frame 41 and is connected with the inner wall of the right side wall, the end portion of the right and left thread screw 43 located outside the U-shaped fixing frame 41 is provided with a screw portion 431, the screw portion 431 is matched with the bit sleeve of an electric screwdriver to realize rotation, the internal thread sleeve 44 is sleeved on the two sides of the right and left thread screw 43, the internal thread sleeve 44 is connected with the right and left thread of the right and left thread screw 43 respectively, the connecting rod 45 is movably connected with the front and back sides of the internal thread sleeve 44, the four fixing bases 46 are arranged on the front and back sides of the middle portion of the pressing plate 47, the two ends of the connecting rod 45 are movably connected with the internal thread sleeve 44 and the fixing base 46 respectively, the limiting blocks 471 are arranged on the two sides of the pressing plate 47, the inner walls of the left and right sides of the U-shaped fixing frame 41 are provided with sliding grooves, and the limiting blocks 471 move up and down along the sliding grooves to limit the moving direction of the pressing plate.

[0022] Working principle:

[0023] The bracket is welded on the front wall transverse beam, the wiper motor is placed on the semicircular groove of the bracket, one side of the circular hoop is pressed downward to be in contact with the pressing plate, at this time, the pressing plate is located at the uppermost position, the U-shaped fixing frame is fixed on the bracket, then the bit sleeve of the electric screwdriver is rotated to drive the screw portion to move the two internal thread sleeves towards each other, the pressing plate is pressed downward under the action of the connecting rod, so that the circular hoop is fixed, the screw portion is reversely rotated to move the two internal thread sleeves reversely, the pressing plate is lifted, so that the fixing and movement of the circular hoop are realized, the transverse deflection of the motor is reduced, the system rigidity is improved, and the reliability and service life of the wiper motor are improved.

[0024] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application in any form. Although the present application has been disclosed with preferred embodiments, it is not intended to limit the present application. Any person skilled in the art can make minor changes or modifications to the disclosed technical content, or make equivalent embodiments with equivalent changes, without departing from the technical solution of the present application. Any modification, equivalent change or modification of the above embodiments, which does not depart from the technical solution of the present application, is still within the scope of the technical solution of the present application.

Claims

1. A quick-pressing and fixing structure for a wiper motor in the cab of engineering machinery, characterized in that, The device includes a wiper motor, a circular hoop, a front crossbeam, and a bracket. The bracket is welded to the front crossbeam and has a semi-circular groove. The wiper motor is located in the semi-circular groove. One end of the circular hoop is fixed to the bracket, and the middle part fixes the wiper motor. The other side is fixed to the bracket by a pressure plate driven by a positive and negative threaded screw on a pressing and fixing mechanism and an internal threaded sleeve, thereby fixing the circular hoop to the bracket and realizing the fixation of the wiper motor.

2. The windshield wiper motor quick-pressing and fixing structure for a construction machinery cab according to claim 1, characterized in that, The pressing and fixing mechanism includes a U-shaped fixing frame, a threaded rod, an internal threaded sleeve, a connecting rod, and a pressure plate. The U-shaped fixing frame is fixed on both sides of the bracket. The threaded rod passes through one side wall of the U-shaped fixing frame and is connected to the other side wall. The threaded rod is fitted with internal threaded sleeves on both sides. The two internal threaded sleeves are respectively connected to the pressure plate through the connecting rod.

3. The windshield wiper motor quick-pressing and fixing structure for a construction machinery cab according to claim 2, characterized in that, The two internal threaded sleeves are respectively connected to the positive and negative threads of the positive and negative threaded screws.

4. The windshield wiper motor quick-pressing and fixing structure for a construction machinery cab according to claim 2, characterized in that, The pressure plate is provided with limiting blocks on both sides, and the U-shaped fixing frame is provided with a sliding groove, and the limiting blocks move up and down along the sliding groove.

5. The windshield wiper motor quick-pressing and fixing structure for a construction machinery cab according to claim 1, characterized in that, Rubber is pasted inside the semi-circular groove and rubber is pasted inside the circular hoop.

6. The windshield wiper motor quick-pressing and fixing structure for a construction machinery cab according to claim 1, characterized in that, The screw is located at the end of the U-shaped fixing frame outside the positive and negative thread screw.

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