Relay mounting structure of gear pump motor

Abstract

The utility model discloses a relay mounting structure of a gear pump motor, which comprises a fitting piece capable of being fixed with a relay, one surface of the fitting piece can be fitted with the outer wall of the motor, the edge of the fitting piece is provided with a plurality of notch holes, and the directions of the notches of the notch holes form included angles; the relay and the motor can be electrically connected through the connecting strip, the two ends of the connecting strip are provided with a round hole and a kidney-shaped hole respectively, the round hole and the kidney-shaped hole are assembled with the relay and the motor respectively, and the length direction of the kidney-shaped hole is perpendicular to the axis direction of the motor. According to the utility model, physical connection and signal connection between the relay and the motor are considered, the problem of alignment precision during installation is considered, and the installation difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the field of motor pumps, in particular to a relay installation structure of a gear pump motor. Background Art

[0002] A motor pump, also known as an electric pump, is an electrically driven pump. A motor pump converts electrical energy into mechanical energy and uses this mechanical energy to rotate the impeller within the pump body, thereby achieving liquid transport. Some motor pumps require a relay, primarily for various protection functions and the convenience of circuit control. The relay uses an electromagnetic mechanism to achieve the function of controlling large currents with small currents. Voltage, current, and other parameters can be converted in the control circuit to achieve on-off control of the motor pump. The manufacturer of the relay itself is often different from that of the gear pump, and the technology gap between the two is quite large. Therefore, the main difficulty lies in how to stably bundle and install components from two different fields and two different specifications to form a complete gear pump assembly. Utility Model Content

[0003] The problem to be solved by the utility model is to provide a relay installation structure for a gear pump motor, which takes into account the physical connection and signal connection between the relay and the motor, while taking into account the positioning accuracy problem during installation, thereby reducing the difficulty of installation.

[0004] In order to solve the above problems, the present invention provides a relay installation structure for a gear pump motor. To achieve the above objectives, the present invention adopts the following technical solutions to solve the technical problems:

[0005] A relay mounting structure for a gear pump motor comprises: a fitting sheet capable of being fixed to the relay, one side of the fitting sheet being capable of being fitted with the outer wall of the motor, the edge of the fitting sheet being provided with a plurality of notches, the directions of the notches being angled with each other; a connecting strip capable of electrically connecting the relay to the motor, the two ends of the connecting strip being provided with a circular hole and a waist-shaped hole respectively, the circular hole and the waist-shaped hole being respectively assembled with the relay and the motor, the length direction of the waist-shaped hole being perpendicular to the axis direction of the motor.

[0006] The beneficial effects of adopting the above technical solution are: the bonding sheet provides a sufficient fixed position between the relay and the motor, which is a physical connection. First, the notch hole is larger than the round hole, which can allow a certain degree of fixed misalignment. The notch hole allows fasteners such as bolts to pass through. The notch holes have different opening directions, which facilitates the entry and exit of fasteners from this opening direction, improving the efficiency of disassembly and adjustment. Because the notch holes have different opening directions, it is not easy to loosen directly from a certain direction. Secondly, the connecting strip acts as an electrical connection, that is, a signal connection. Considering that the relay is more likely to loosen in the circumferential direction than in the axial direction after being fixed, the waist-shaped hole is specially designed to deal with this alignment error.

[0007] As a further improvement of the present invention, the notch hole includes a first notch hole and a second notch hole. The notch directions of the first notch hole and the second notch hole are at right angles. The first notch hole and the second notch hole are respectively located on both sides of the connection between the bonding sheet and the relay.

[0008] As a further improvement of the present invention, the widths of the first notch hole and the second notch hole are equal, the depths of the first notch hole and the second notch hole are equal, and the width of the first notch hole is smaller than its depth.

[0009] The beneficial effect of adopting the above technical solution is that the notch holes have the same specifications and can provide a firm circumferential semi-wrapped limit for fasteners such as bolts.

[0010] As a further improvement of the present invention, the connecting strip includes a first straight section, a second straight section, and a third straight section which are connected in sequence as an integral whole, the circular hole is located in the first straight section, and the waist-shaped hole is located in the third straight section; the junction of the first straight section and the second straight section is a right-angle bend, the plane where the first straight section is located is perpendicular to the axis of the motor, and the planes where the second and third straight sections are located are parallel to the axis of the motor.

[0011] As a further improvement of the present invention, the bonding sheet and the connecting strip are metal plates of equal thickness.

[0012] The beneficial effect of adopting the above technical solution is that although the functions are different, they can be punched and bent from the same metal plate, which makes it easier to control material costs.

[0013] As a further improvement of the present invention, a base is fixed to the outer wall of the motor, and the base has a circular hole and a notch hole.

[0014] The beneficial effect of adopting the above technical solution is that the base facilitates fixing the motor to other parts, such as fixing it to the ground.

[0015] As a further improvement of the present invention, the number of the circular holes is several, the number of the notch hole is one, and the inner diameter of the circular hole is equal to the width of the notch hole.

[0016] The beneficial effect of adopting the above technical solution is that the notch hole is essentially the same as the gap hole, and this design is also for facilitating the disassembly and assembly of the base and the fine adjustment of the position.

[0017] As a further improvement of the present invention, the base and the bonding sheet are respectively located on both sides of the motor.

[0018] The beneficial effect of adopting the above technical solution is to avoid interference between the two. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 This is a schematic assembly diagram of a relay, a connecting strip, and a bonding sheet in one embodiment of a relay mounting structure for a gear pump motor of the present invention;

[0021] Figure 2 This is a perspective view of an embodiment of the motor pump with an outwardly convex gasket structure of the present invention;

[0022] Figure 3 This is a perspective view of an embodiment of the motor pump with an outwardly convex gasket structure of the present invention;

[0023] Figure 4 This is a partial enlarged view of point A of an embodiment of the motor pump with an outward convex gasket structure of the present utility model;

[0024] Figure 5 This is a schematic diagram of the assembly of a pump body and a gasket of an embodiment of a motor pump with an outwardly convex gasket structure of the present invention;

[0025] Figure 6 This is an exploded view of a pump body and a gasket of an embodiment of a motor pump with an outwardly convex gasket structure of the present invention.

[0026] 1-motor; 2-pump body; 21-inner threaded hole; 22-radial platform; 23-inner groove; 3-relay; 4-gasket; 41-center hole; 42-through hole; 43-arc edge; 44-wing-shaped portion; 441-outer convex area; 5-base; 51-circular hole; 52-notch hole; 6-connecting strip; 61-circular hole; 62-waist-shaped hole; 63-first straight section; 64-second straight section; 65-third straight section; 7-fitting sheet; 71-first notch hole; 72-second notch hole. DETAILED DESCRIPTION

[0027] The following is a further detailed description of the present invention in conjunction with specific embodiments:

[0028] In order to achieve the purpose of this utility model, Figures 1 to 3As shown, a relay mounting structure of a gear pump motor includes: a fitting sheet 7, which can be fixed to the relay 3, one side of the fitting sheet 7 can be fitted with the outer wall of the motor 1, and the edge of the fitting sheet 7 has a plurality of notches, and the directions of the notches are angled with each other; a connecting bar 6, which can electrically connect the relay 3 and the motor 1, and the two ends of the connecting bar 6 respectively have a circular hole 61 and a waist-shaped hole 62, the circular hole 61 and the waist-shaped hole 62 are respectively assembled with the relay 3 and the motor 1, and the length direction of the waist-shaped hole 62 is perpendicular to the axial direction of the motor 1.

[0029] The beneficial effects of adopting the above technical solution are as follows: the bonding sheet provides a sufficient fixed position between the relay and the motor, which is a physical connection. First, the notch hole allows fasteners such as bolts to pass through. The notch holes open in different directions, making it easier to enter and exit the fasteners from this opening direction, improving the efficiency of disassembly, assembly, and adjustment. Because the notch holes open in different directions, it is not easy for them to loosen directly from a certain direction. Secondly, the connecting strip acts as an electrical connection, that is, a signal connection. Considering that the relay is more likely to loosen in the circumferential direction than in the axial direction after being fixed to the motor, the waist-shaped hole is specially designed to cope with this alignment error.

[0030] In other embodiments of the present invention, the notch hole includes a first notch hole 71 and a second notch hole 72 . The notch directions of the first notch hole 72 and the second notch hole 72 are respectively at right angles. The first notch hole 71 and the second notch hole 72 are respectively located on both sides of the connection between the bonding sheet 7 and the relay 3 .

[0031] In some other embodiments of the present invention, the widths of the first notch hole 71 and the second notch hole 72 are equal, the depths of the first notch hole 71 and the second notch hole 72 are equal, and the width of the first notch hole 71 is smaller than its depth.

[0032] The beneficial effect of adopting the above technical solution is that the notch holes have the same specifications and can provide a firm circumferential semi-wrapped limit for fasteners such as bolts.

[0033] In other embodiments of the present invention, the connecting strip 6 includes a first straight section 61, a second straight section 62, and a third straight section 63 that are connected in sequence as a whole, the circular hole 61 is located in the first straight section 63, and the waist-shaped hole 62 is located in the third straight section 63; the junction of the first straight section 61 and the second straight section 62 is a right-angle bend, the plane where the first straight section 63 is located is perpendicular to the axis of the motor 1, and the planes where the second straight section 62 and the third straight section 63 are located are parallel to the axis of the motor 1.

[0034] In other embodiments of the present invention, the bonding sheet 7 and the connecting strip 6 are metal plates of equal thickness.

[0035] The beneficial effect of adopting the above technical solution is that although the functions are different, they can be punched and bent from the same metal plate, which makes it easier to control material costs.

[0036] like Figure 2 As shown, in some other embodiments of the present invention, a base 5 is further fixed to the outer wall of the motor 1 , and the base 5 has a circular hole 51 and a notch hole 52 .

[0037] The beneficial effect of adopting the above technical solution is that the base facilitates fixing the motor to other parts, such as fixing it to the ground.

[0038] In some other embodiments of the present invention, there are several circular holes 51 , one notch hole 52 , and the inner diameter of the circular hole 51 is equal to the width of the notch hole 52 .

[0039] The beneficial effect of adopting the above technical solution is that the notch hole is essentially the same as the gap hole, and this design is also for facilitating the disassembly and assembly of the base and the fine adjustment of the position.

[0040] In other embodiments of the present invention, the base 5 and the bonding sheet 7 are respectively located on two sides of the motor 1 .

[0041] The beneficial effect of adopting the above technical solution is to avoid interference between the two.

[0042] like Figure 3 、 Figure 4 As shown, a motor pump with a convex gasket structure includes: a motor 1; a pump body 2, located at one axial end of the motor 1, and a power shaft connected between the motor 1 and the pump body 2; a gasket 4, located between the motor 1 and the pump body 2, and the front and back surfaces of the gasket 4 are in surface contact with the motor 1 and the pump body 2 respectively, and the centroid of the gasket 4 is provided with a center hole 41, and the center hole 41 is for the power shaft to pass through; wherein, the gasket 4 has a through hole 42, and the motor 1 has an internal threaded hole 11, the number of the internal threaded holes 11 is an integer multiple of the number of the through holes 42, and the internal threaded holes 11 are for selective fixation of the through holes 42; in the axial projections of the motor 1, the pump body 2, and the gasket 4, there is a convex area 441 at the edge of the gasket 4 that does not intersect with the projections of the motor 1 and the pump body 2.

[0043] The beneficial effect of adopting the above technical solution is that the improvement mainly lies in the gasket. First, because the number of internal threaded holes is an integer multiple of the number of through holes, the gasket can be assembled at its own specified angle, that is, there is an angle between the gaskets in different installation positions. Second, the convex area is equivalent to a preset anti-collision part, which prevents external bumps from directly damaging the relatively more expensive motor or pump body, but at the expense of damaging the convex area. Even if the entire gasket is replaced later, the cost is not high. In addition, compared with the pump body and motor, the gasket is relatively thin, and can use its own collapse deformation to absorb energy to deal with bumps. This application gives the gasket two new functions.

[0044] In other embodiments of the present invention, the gasket 4 is a centrally symmetrical figure and an axially symmetrical figure at the same time.

[0045] In other embodiments of the present invention, the number of through holes in the gasket 4 is two, the number of internal threaded holes 11 is four, the two through holes 42 are symmetrically distributed on both sides of the center hole 41, and the four internal threaded holes 42 are arranged in a circular array around the axis of the motor 1.

[0046] like Figure 6 As shown, the motor has a radial platform 12 that protrudes radially outward, an inner groove 13 is formed between the connected radial platforms 12, and the internal threaded hole 11 is located in the radial platform 12.

[0047] The beneficial effect of adopting the above technical solution is that the gasket can have two optional installation angles.

[0048] In other embodiments of the present invention, the area between the edge of the gasket 4 and the center hole 41 is the arc edge 43 or the wing-shaped portion 44 of the gasket 4, the radial dimension of the arc edge 43 is smaller than the radial dimension of the wing-shaped portion 44, the through hole 42 is located in the wing-shaped portion 44, and the end of the wing-shaped portion 44 away from the center hole 41 is the convex area 441.

[0049] The beneficial effects of adopting the above technical solution are: the wing-shaped portion has a large relative radial dimension, and the deformation of the outer convex area will not directly affect the central hole.

[0050] In other embodiments of the present invention, the outer contour of the gasket 4 is spindle-shaped.

[0051] In some other embodiments of the present invention, the inner diameter of the central hole 41 is larger than the inner diameter of the through hole 42 , and the inner diameters of the internal threaded hole 11 and the through hole 42 are equal.

[0052] The beneficial effect of adopting the above technical solution is that the size of the central hole is relatively large because it is equivalent to a part of the cavity.

[0053] In other embodiments of the present invention, the thickness of the gasket 4 is not less than 2 mm.

[0054] The above embodiments are only for illustrating the technical concept and features of the present invention. Their purpose is to enable people familiar with this technology to understand the content of the present invention and implement it. They are not intended to limit the scope of protection of the present invention. Any equivalent changes or modifications made according to the spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. A relay mounting structure for a gear pump motor, characterized in that: include: A bonding sheet capable of being fixed to the relay, wherein one side of the bonding sheet can be bonded to the outer wall of the motor, and the edge of the bonding sheet has a plurality of notches, wherein the notches of the notches are oriented at angles to each other; The connecting bar can electrically connect the relay and the motor. The two ends of the connecting bar are respectively provided with a round hole and a waist-shaped hole. The round hole and the waist-shaped hole are respectively assembled with the relay and the motor. The length direction of the waist-shaped hole is perpendicular to the axis direction of the motor.

2. The relay mounting structure of the gear pump motor according to claim 1, characterized in that: The notch holes include a first notch hole and a second notch hole. The notch directions of the first notch hole and the second notch hole are respectively at right angles. The first notch hole and the second notch hole are respectively located on both sides of the connection between the bonding sheet and the relay.

3. The relay mounting structure of the gear pump motor according to claim 2, characterized in that: The widths of the first notch hole and the second notch hole are equal, the depths of the first notch hole and the second notch hole are equal, and the width of the first notch hole is smaller than its depth.

4. The relay mounting structure of the gear pump motor according to claim 1, characterized in that: The connecting strip comprises a first straight section, a second straight section, and a third straight section which are connected in sequence and are integrally connected. The circular hole is located in the first straight section, and the waist-shaped hole is located in the third straight section. The intersection of the first straight section and the second straight section is a right-angle bend. The plane where the first straight section is located is perpendicular to the axis of the motor. The plane where the second and third straight sections are located are parallel to the axis of the motor.

5. The relay mounting structure of the gear pump motor according to claim 1, characterized in that: The bonding sheets and connecting strips are metal plates with equal thickness.

6. The relay mounting structure of the gear pump motor according to claim 1, characterized in that: A base is also fixed on the outer wall of the motor, and the base is provided with a circular hole and a notch hole.

7. The relay mounting structure of the gear pump motor according to claim 6, characterized in that: The number of the circular holes is several, the number of the notch hole is one, and the inner diameter of the circular hole is equal to the width of the notch hole.

8. The relay mounting structure of the gear pump motor according to claim 6, characterized in that: The base and the bonding sheet are respectively located on two sides of the motor.

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