Novel oil pump motor

Abstract

The utility model provides a novel oil pump motor which comprises a motor and a pump body connected with the motor, a supporting cover body is detachably installed between the motor and the pump body, an annular base communicated with the interior of the supporting cover body is arranged at the bottom of the supporting cover body, an installation disc is detachably installed at the bottom of the annular base, and a floating switch located in the annular base is arranged on the installation disc. The floating switch is installed in a circuit of the alarm, and when the floating switch is switched on due to liquid buoyancy, the alarm gives an alarm. During use, after leakage occurs at the rotating shaft of the pump body, the supporting cover body is filled with oil, the floating body drives the elastic electrode plate to bend towards the conductor support, and the elastic electrode plate is in contact with the conductor support, so that a circuit of the alarm is conducted, the alarm gives an alarm for prompting, and the leakage problem of the pump can be found in time.

Description

Technical Field

[0001] This utility model relates to the field of oil pump motor technology, specifically a novel oil pump motor. Background Technology

[0002] An oil pump motor is an improved type of motor that drives an oil pump. Its shaft is connected to the pump body, and the pump body operates under the motor's drive. Because the pump shaft and pump casing are sealed with a sealing assembly, leakage may occur over time. In other words, since the sealing assembly will inevitably wear down, leakage is inevitable; it's only a matter of time. Furthermore, the high internal pressure of the oil pump means that leaked oil will flow out rapidly. To detect leaks more promptly, we propose a new type of oil pump motor. Utility Model Content

[0003] This invention provides a novel oil pump motor that has the advantage of being able to detect pump leaks in a timely manner, thus solving the problems mentioned in the background art.

[0004] The technical solution of this utility model is implemented as follows: A novel oil pump motor includes a motor and a pump body connected to the motor, as well as a support cover and an alarm. The support cover is detachably installed between the motor and the pump body. The bottom of the support cover is provided with an annular seat communicating with its interior. An installation plate is detachably installed at the bottom of the annular seat. A floating switch is provided on the installation plate located inside the annular seat. The floating switch is installed in the circuit of the alarm. When the floating switch is turned on due to the buoyancy of the liquid, the alarm sounds.

[0005] Preferably, the floating switch includes a first cylindrical electrode and a second cylindrical electrode vertically mounted on a mounting plate. The tops of the first and second cylindrical electrodes extend into the annular seat, and the height of the top of the second cylindrical electrode is lower than that of the top of the first cylindrical electrode. A conductor support is provided on the top of the first cylindrical electrode, and an elastic electrode sheet is provided on the top of the second cylindrical electrode. The elastic electrode sheet is located below the conductor support. In the initial state, there is a certain gap between the two. A float is provided below the end of the elastic electrode sheet. When the float is lifted by the buoyancy of the oil, the float causes the elastic electrode sheet to bend towards the conductor support, and the elastic electrode sheet contacts the conductor support.

[0006] Preferably, the top of the elastic electrode sheet and the lower end of the conductor support are respectively provided with contacts, and the upper and lower contacts are arranged correspondingly.

[0007] Preferably, the mounting plate is an insulator.

[0008] Preferably, the first cylindrical electrode and the second cylindrical electrode are provided with an insulating layer on their exterior, and the insulating layer is fixed to the mounting plate.

[0009] Preferably, the motor shaft is provided with a spline sleeve, and the pump body input shaft is provided with a spline shaft that matches the spline sleeve. Both the spline shaft and the spline sleeve are placed in the support cover and are inserted together.

[0010] Preferably, a flange seat is provided on the end face of the motor, and a second mounting flange is provided at the end of the support cover near the motor, and the second mounting flange is connected to the flange seat.

[0011] Preferably, a first mounting flange is provided at one end of the support cover near the pump body and at one end of the pump body near the support cover, and the two first mounting flanges are connected together.

[0012] Compared with the prior art, when this utility model is in use, after a leak occurs at the pump body shaft, the support cover is filled with oil. At this time, the floating body drives the elastic electrode plate to bend towards the conductor support, and the elastic electrode plate contacts the conductor support, so that the alarm circuit is connected and the alarm sounds, which can promptly detect the pump leakage problem. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a complete structural diagram of the present invention. Figure 1 .

[0015] Figure 2 This is a complete structural diagram of the present invention. Figure 2 .

[0016] Figure 3 This is a schematic diagram of the structure of the present invention during an explosion. Figure 1 .

[0017] Figure 4 This is a schematic diagram of the structure of the present invention during an explosion. Figure 2 .

[0018] Figure 5 This is a schematic diagram of the structure at the bottom of the support cover of this utility model.

[0019] Figure 6 This is a schematic diagram of the installation disk of this utility model.

[0020] Figure 7 This is the front view of the present invention.

[0021] In the diagram: 1. Motor; 2. Pump body; 3. First mounting flange; 4. Support cover; 5. Flange seat; 6. Second mounting flange; 7. Mounting plate; 8. Spline sleeve; 9. First cylindrical electrode; 10. Second cylindrical electrode; 11. Elastic electrode sheet; 12. Float body; 13. Contact; 14. Conductor support; 15. Spline shaft; 16. Alarm; 17. Annular seat. Detailed Implementation

[0022] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] Reference Figures 1 to 7 This utility model provides a technical solution: a novel oil pump motor, including a motor 1 and a pump body 2 connected to the motor 1. For example, the motor 1 is a servo motor, a brushless motor, or a brushed motor, while the pump body 2 is a plunger pump, a centrifugal pump, or a gear pump. In actual installation, the pump body 2 can be directly connected to the shaft of the motor 1.

[0024] like Figure 3 As shown, the shaft of motor 1 is equipped with a spline sleeve 8, such as... Figure 3 As shown, a splined shaft 15 matching the splined sleeve 8 is provided on the input shaft of the pump body 2. The splined shaft 15 and the splined sleeve 8 can be inserted together to realize the power connection between the pump and the motor. It should be noted that the splined sleeve 8 can be set on the pump body 2, and the splined shaft 15 can be set on the motor 1.

[0025] This application also includes a support cover 4, which is located between the motor 1 and the pump body 2. The splined shaft 15 and the splined sleeve 8 are both placed in the support cover 4. The support cover 4 is a ring structure, and its axial length is sufficient to accommodate the splined shaft 15 and the splined sleeve 8, so as to avoid the support cover 4 being too long.

[0026] The support cover 4 is detachable from the motor 1 and the pump body 2. Specifically, a flange seat 5 is provided on the end face of the motor 1, and a second mounting flange 6 is provided on the end of the support cover 4 near the motor 1. The second mounting flange 6 is connected to the flange seat 5, that is, the edges of the two are fastened together with bolts. Moreover, a first mounting flange 3 is provided on the end of the support cover 4 near the pump body 2 and on the end of the pump body 2 near the support cover 4, and the two first mounting flanges 3 are connected, that is, the edges of the two are fastened together with bolts. In this way, the support cover 4 can be stably installed between the motor 1 and the pump body 2, and both ends of the support cover 4 are sealed to the ends of the motor 1 and the pump body 2, respectively. If leakage occurs at the input shaft of the pump body 2, the leaked oil will automatically flow into the interior of the support cover 4.

[0027] Figure 5 This is a schematic diagram of the bottom of the support cover 4, clearly showing that an annular seat 17 communicating with the interior is provided at the bottom of the support cover 4. A mounting plate 7 is detachably mounted on the bottom of the annular seat 17, meaning the edges of the two are fastened together by bolts. A floating switch located inside the annular seat 17 is mounted on the mounting plate 7. Figure 7 As shown, the float switch is installed in the circuit of the alarm 16. When the float switch is turned on due to the buoyancy of the liquid, the alarm 16 will sound an alarm, such as a buzzer or an audible and visual alarm. It can be installed on the motor 1 or in other locations outside the motor.

[0028] This application also proposes a specific structure for a floating switch, the composition of which will be described in detail below:

[0029] like Figure 6 As shown, the floating switch includes a first cylindrical electrode 9 and a second cylindrical electrode 10 vertically mounted on the mounting plate 7. The tops of the first cylindrical electrode 9 and the second cylindrical electrode 10 extend into the annular seat 17, and the top height of the second cylindrical electrode 10 is lower than the top height of the first cylindrical electrode 9, that is, the tops of the two are stepped.

[0030] The first cylindrical electrode 9 has a conductor support 14 at its top, and the second cylindrical electrode 10 has an elastic electrode sheet 11 at its top. The elastic electrode sheet 11 is located below the conductor support 14, and initially, there is a certain gap between the two. A float 12 is provided below the end of the elastic electrode sheet 11. When the support cover 4 is filled with oil, the float 12 will be buoyant. That is, when the float 12 is lifted by the buoyancy of the oil, the float 12 will cause the elastic electrode sheet 11 to bend towards the conductor support 14, and make the elastic electrode sheet 11 contact the conductor support 14. At this time, the elastic electrode sheet 11 and the conductor support 14 can be electrically connected to each other. In order to make the elastic electrode sheet 11 and the conductor support 14 contact each other better, a contact 13 can be provided at the top of the elastic electrode sheet 11 and the bottom of the conductor support 14, respectively, with the upper and lower contacts 13 corresponding to each other.

[0031] It should be noted that insulation is required between the first cylindrical electrode 9 and the mounting plate 7, and insulation is also required between the second cylindrical electrode 10 and the mounting plate 7. Therefore, there are two ways to combine the mounting plate 7 and the cylindrical electrode.

[0032] The first method is to use an insulator, such as plastic or ceramic, for the mounting plate 7. The first cylindrical electrode 9 and the second cylindrical electrode 10 can be installed inside the mounting plate 7 to achieve mutual independence.

[0033] The first method involves providing an insulating layer on the outside of the first cylindrical electrode 9 and the second cylindrical electrode 10. For example, the first cylindrical electrode 9 and the second cylindrical electrode 10 can be placed in a plastic sleeve or a ceramic sleeve. During installation, the insulating layer is fixed to the mounting plate 7, which also allows the first cylindrical electrode 9 and the second cylindrical electrode 10 to be independent of each other.

[0034] Based on the above embodiments, it should be further explained that the annular seat 17 is located at the bottom of the support cover 4, and the oil is more likely to concentrate inside the annular seat 17, which can immediately lift the float 12 upward, so that the oil leakage problem can be detected immediately.

[0035] Based on the above embodiments, it should be further explained that the first cylindrical electrode 9, the second cylindrical electrode 10, the elastic electrode sheet 11, and the contact 13 are made of conductive materials such as copper and aluminum, while the floating body 12 is made of materials such as foam and floating rubber.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A novel oil pump motor, comprising a motor (1) and a pump body (2) connected to the motor (1), characterized in that, It also includes a support cover (4) and an alarm (16); The support cover (4) is detachably installed between the motor (1) and the pump body (2); The bottom of the support cover (4) is provided with an annular seat (17) communicating with its interior. The bottom of the annular seat (17) is detachably equipped with a mounting plate (7), and the mounting plate (7) is provided with a floating switch located inside the annular seat (17). The floating switch is installed in the circuit of the alarm (16). When the floating switch is turned on due to the buoyancy of the liquid, the alarm (16) will sound.

2. The novel oil pump motor as described in claim 1, characterized in that, The floating switch includes a first cylindrical electrode (9) and a second cylindrical electrode (10) mounted vertically on a mounting plate (7). The tops of the first cylindrical electrode (9) and the second cylindrical electrode (10) extend into the annular seat (17), and the top height of the second cylindrical electrode (10) is lower than the top height of the first cylindrical electrode (9). The first cylindrical electrode (9) is provided with a conductor support (14) at the top; The second cylindrical electrode (10) is provided with an elastic electrode sheet (11) at the top. The elastic electrode sheet (11) is located below the conductor support (14). In the initial state, there is a certain distance between the two. A float (12) is provided below the end of the elastic electrode sheet (11). When the float (12) is lifted by the buoyancy of the oil, the float (12) causes the elastic electrode sheet (11) to bend toward the conductor support (14) and make the elastic electrode sheet (11) and the conductor support (14) come into contact.

3. The novel oil pump motor as described in claim 2, characterized in that, The top of the elastic electrode sheet (11) and the bottom of the conductor support (14) are respectively provided with contacts (13), and the two contacts (13) are arranged correspondingly.

4. The novel oil pump motor as described in claim 3, characterized in that, The mounting plate (7) is an insulator.

5. The novel oil pump motor as described in claim 3, characterized in that, The first cylindrical electrode (9) and the second cylindrical electrode (10) are provided with an insulating layer on the outside, and the insulating layer is fixed to the mounting plate (7).

6. The novel oil pump motor according to any one of claims 1-5, characterized in that, The motor (1) has a spline sleeve (8) on its shaft and a spline shaft (15) that matches the spline sleeve (8) on the input shaft of the pump body (2). The spline shaft (15) and the spline sleeve (8) are both placed in the support cover (4) and are inserted together.

7. The novel oil pump motor as described in claim 6, characterized in that, A flange seat (5) is provided on the end face of the motor (1), and a second mounting flange (6) is provided on the end of the support cover (4) near the motor (1). The second mounting flange (6) is connected to the flange seat (5).

8. The novel oil pump motor as described in claim 7, characterized in that, The support cover (4) is provided with a first mounting flange (3) at one end near the pump body (2) and at the other end of the pump body (2) near the support cover (4), and the two first mounting flanges (3) are connected together.

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