Variable-frequency motor pre-installation positioning base for excavator

Abstract

The utility model relates to a pre-installation positioning base of a variable frequency motor for an excavator, which relates to the technical field of motors and comprises an installation plug board fixed at the bottom of the variable frequency motor and an installation base detachably fixed at a pre-installation position. Positioning slots are formed between the ends, close to each other, of the two branch seats and the end face of the pre-installation position, the two side ends of the installation insertion plate are inserted into the positioning slots in a sliding mode respectively, and limiting plates are arranged at the positions, at openings of the ends of the positioning slots, of the branch seats. The beneficial effect of the utility model is that the installation process of the large-size and large-mass motor is more convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of electric motors, in particular to a pre-installed positioning base for a variable frequency electric motor for an excavator. Background Art

[0002] With the rapid development of power electronics technology and new semiconductor devices, AC speed regulation technology has been continuously improved and enhanced. The gradually improved frequency converter has been widely used in AC motors with its good output waveform and excellent performance-price ratio. For example: large motors and medium and small roller motors used in steel mills for rolling, traction motors for railways and urban rail transit, elevator motors, hoisting motors for container lifting equipment, motors for water pumps and fans, compressors, motors for household appliances, etc. have successively used AC variable frequency speed regulation motors and achieved good results.

[0003] There are many working parts on the excavator, so the number of motors required is also large, and the installation position is not always horizontal. As a result, when installing the motor, due to its large size and heavy mass, it needs to be continuously lifted by a crane or other equipment for installation. It is also easy to shake during the lifting and installation process, which makes the installation difficult and inconvenient. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In view of the above-mentioned shortcomings and deficiencies of the prior art, the utility model provides a pre-installation positioning base for a variable frequency motor for an excavator, which solves the technical problem of the inconvenience of the installation process of a large-volume and large-mass motor.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] An embodiment of the utility model provides a pre-installation positioning base for a variable frequency motor for an excavator, comprising a mounting plug plate fixed to the bottom of the variable frequency motor and a mounting base detachably fixed to the pre-installation position, the mounting base comprising two parallel and oppositely arranged sub-seats, a positioning slot is formed between one end of the two sub-seats close to each other and the end face of the pre-installation position, the two side ends of the mounting plug plate are respectively slidably inserted into the positioning slots, and a limiting plate is provided at one end opening of the sub-seat of the positioning slot.

[0009] The embodiment of the utility model proposes a pre-installation positioning base for a variable frequency motor for an excavator. When the variable frequency motor is installed, the installation base is fixed to the pre-installation position, the two sub-seats are arranged in parallel and spaced objects, and then the installation plug plate is fixed to the bottom of the variable frequency motor. After the variable frequency motor is lifted by the lifting equipment, the two side ends of the installation plug plate are aligned with the two positioning slots formed between the two sub-seats and the pre-installation end faces and then inserted until the installation plug plate abuts against the limit plate. At this time, the variable frequency motor slides to the specified position, and the variable frequency motor is completely fixed. Subsequently, the two sub-seats can be removed and reused. This scheme makes the installation process of large-volume and large-mass motors more convenient.

[0010] Optionally, the limiting plate is detachably connected to the sub-seat, and the limiting plate can be fixed to any position of the sub-seat along its own length direction and provided for the mounting plug plate to abut and position.

[0011] By detachably connecting the limit plate to the sub-seat, the limit plate and the sub-seat can be separated after the motor is installed for easy transportation. At the same time, the limit plate can be fixed at any position along the length of the sub-seat, so that the limit plate can be fine-tuned according to the pre-installed position of the motor, making the installation position more accurate.

[0012] Optionally, the two ends of the limit plate are respectively inserted into the two positioning slots and slide along the length direction of the positioning slots, the limit plate and the two sub-seats are connected by two connecting plates, the sub-seats are evenly spaced with first positioning holes along their own length direction, the limit plate is respectively provided with second positioning holes near the two positioning slots, and the two ends of the connecting plate are vertically provided with a first positioning column and a second positioning column respectively inserted into the first positioning hole and the second positioning hole.

[0013] The limit plate is fixed to the sub-seats on both sides through two connecting plates. The two ends of the limit plate are respectively inserted into the positioning slots on both sides. After the limit plate is slid to the specified position along the length direction of the sub-seat, a connecting plate of appropriate length is selected, and the first positioning column of the connecting plate is inserted into the first positioning hole, and the second positioning column is inserted into the second positioning hole. The two connecting plates are fixed respectively. At this time, the limit plate and the sub-seats on both sides are connected together. This scheme makes the installation and disassembly of the limit plate more convenient and quick.

[0014] Optionally, the second positioning column is rotatably connected to the connecting plate and fixed to the second positioning hole via threads, and the first positioning column is connected to the connecting plate via threads.

[0015] By rotating the second positioning column to connect to the connecting plate and threading the second positioning column in the second positioning hole, when installing the limit plate, the second positioning column on the two connecting plates can be connected to the limit plate first, and then the connecting plate can be rotated until the first positioning column is aligned with the first positioning hole, and then the first positioning column is rotated so that the first positioning column is inserted into the first positioning hole, thereby completing the installation of the limit plate. This solution allows the connecting plate, the limit plate, the first positioning column and the second positioning column to form a whole for installation, which is more convenient.

[0016] Optionally, the opening spacing of the two positioning slots at one end away from the limiting plate is larger than the opening spacing at the other end.

[0017] By setting the opening spacing of the two positioning slots away from one end of the limiting plate to be larger than the opening spacing of the other end, the openings of the two positioning slots for inserting the installation plug plate are expanded, thereby facilitating the insertion of the installation plug plate.

[0018] Optionally, the opening width of the two positioning slots at one end away from the limiting plate is greater than the opening width of the other end.

[0019] By setting the opening width of the two positioning slots at one end away from the limiting plate to be larger than the opening width of the other end, the opening width of the positioning slot for inserting the installation plug plate is larger, which facilitates the insertion of the installation plug plate.

[0020] Optionally, the mounting plug plate includes two half plug plates which are detachably connected to both side ends of the variable frequency motor.

[0021] By configuring the mounting plug plate as two half plug plates, the two half plug plates can be detachably connected to both side ends of the variable frequency motor. After the variable frequency motor is installed, the two half plug plates can also be detached and reused, which is more convenient.

[0022] Optionally, a buffer rubber strip is provided at one end of the half plug plate abutting against the limiting plate.

[0023] By arranging a buffer rubber strip at one end of the half plug plate abutting against the limit plate, the vibration generated during the installation of the variable frequency motor can be reduced, thereby reducing the probability of damage during the installation of the variable frequency motor.

[0024] Optionally, a side end of the sub-seat away from the positioning slot is provided with a plurality of magnetic sheets for magnetically fixing the half plug-in board.

[0025] By arranging a plurality of magnetic sheets at one side end of the sub-seat away from the positioning slot, after the variable frequency motor is installed, the half plug-in board can be magnetically fixed to the side end of the sub-seat for easy storage.

[0026] (III) Beneficial effects

[0027] The beneficial effects of the utility model are as follows: the utility model pre-installs a positioning base for a variable frequency motor for an excavator. When the variable frequency motor is installed, the installation base is fixed to the pre-installation position, the two sub-seats are arranged in parallel and spaced objects, and then the installation plug plate is fixed to the bottom of the variable frequency motor. After the variable frequency motor is lifted by the lifting equipment, the two side ends of the installation plug plate are aligned with the two positioning slots formed between the two sub-seats and the pre-installation end faces and then inserted until the installation plug plate abuts against the limit plate. At this time, the variable frequency motor slides to the specified position, and the variable frequency motor is completely fixed. Subsequently, the two sub-seats can be removed and reused. This scheme makes the installation process of large-volume and large-mass motors more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of an embodiment of the utility model;

[0029] Figure 2 It is a schematic diagram of an explosion of an embodiment of the utility model.

[0030] [Description of Reference Numerals]

[0031] 1. Install the plug board; 11. Half plug board; 12. Buffer rubber strip; 2. Install the base; 21. Sub-seat; 211. First positioning hole; 212. Magnetic sheet; 22. Positioning slot; 3. Limiting plate; 31. Second positioning hole; 4. Connecting plate; 41. First positioning column; 42. Second positioning column. DETAILED DESCRIPTION

[0032] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0033] The embodiment of the utility model proposes a pre-installation positioning base for a variable frequency motor for an excavator. When the variable frequency motor is installed, the installation base is fixed to the pre-installation position, the two sub-seats are arranged in parallel and spaced objects, and then the installation plug plate is fixed to the bottom of the variable frequency motor. After the variable frequency motor is lifted by the lifting equipment, the two side ends of the installation plug plate are aligned with the two positioning slots formed between the two sub-seats and the pre-installation end faces and then inserted until the installation plug plate abuts against the limit plate. At this time, the variable frequency motor slides to the specified position, and the variable frequency motor is completely fixed. Subsequently, the two sub-seats can be removed and reused. This scheme makes the installation process of large-volume and large-mass motors more convenient.

[0034] In order to better understand the above technical solution, exemplary embodiments of the present invention will be described in more detail with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a clearer and more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0035] Reference Figure 1 and Figure 2 A pre-installation positioning base for a variable frequency motor for an excavator comprises a mounting plug plate 1 which can be detachably fixed to the bottom of the variable frequency motor and a mounting base 2 which can be detachably fixed to a pre-installation position.

[0036] The mounting base 2 includes two parallel and oppositely disposed sub-seats 21, the two sub-seats 21 are fixed to the end surface of the pre-installation position by bolts at intervals, and a positioning slot 22 is formed between the ends of the two sub-seats 21 that are close to each other and the end surface of the pre-installation position.

[0037] The mounting plate 1 includes two half plates 11 which are detachably connected to both sides of the variable frequency motor by bolts. The two half plates 11 are respectively slidably inserted into a positioning slot 22, so that the variable frequency motor slides to the pre-installation position along the length direction of the sub-seat 21.

[0038] The sub-seat 21 can remove the limiting plate 3 at the opening of one end of the positioning slot 22. The limiting plate 3 can be fixed at any position of the sub-seat 21 along its own length direction and provided for the installation plug plate 1 to abut and position. The two ends of the limiting plate 3 are respectively inserted into the two positioning slots 22 and slide along the length direction of the positioning slots 22. The limiting plate 3 and the two sub-seats 21 are connected by two connecting plates 4. The sub-seat 21 is provided with first positioning holes 211 evenly spaced along its own length direction. The limiting plate 3 is provided with second positioning holes 31 near the two positioning slots 22. The two ends of the connecting plate 4 are vertically provided with a first positioning column 41 and a second positioning column 42 respectively inserted into a first positioning hole 211 and a second positioning hole 31. The second positioning column 42 is rotatably connected to the connecting plate 4 and fixed to the second positioning hole 31 by threads. The first positioning column 41 is connected to the connecting plate 4 by threads. After sliding the limit plate 3 to the specified position along the length direction of the sub-seat 21, select a connecting plate 4 of appropriate length, connect the second positioning columns 42 on the two connecting plates 4 to the limit plate 3, then rotate the connecting plate 4 until the first positioning column 41 is aligned with the first positioning hole 211, then rotate the first positioning column 41 so that the first positioning column 41 is inserted into the first positioning hole 211, thereby completing the installation of the limit plate 3. At this time, the limit plate 3 and the sub-seats 21 on both sides are connected together.

[0039] The opening spacing of the two positioning slots 22 at one end away from the limiting plate 3 is larger than the opening spacing at the other end, so that the openings of the two positioning slots 22 for inserting the installation plug board 1 are expanded, thereby facilitating the insertion of the installation plug board 1. The opening width of the two positioning slots 22 at one end away from the limiting plate 3 is larger than the opening width at the other end, so that the opening width of the positioning slots 22 for inserting the installation plug board 1 is larger, further facilitating the insertion of the installation plug board 1.

[0040] The end of the half plug board 11 abutting against the limit plate 3 is bonded with a buffer rubber strip 12. The vibration generated during the installation of the variable frequency motor can be reduced, so as to reduce the probability of damage during the installation of the variable frequency motor.

[0041] A plurality of magnetic sheets 212 for magnetically fixing the half-board 11 are embedded in one side end of the sub-base 21 away from the positioning slot 22. After the variable frequency motor is installed, the half-board 11 can be magnetically fixed to the side end of the sub-base 21 for easy storage.

[0042] In the description of the present utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] In the present utility model, unless otherwise clearly specified and limited, when a first feature is “on” or “below” a second feature, it may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, when a first feature is “above”, “above” or “above” a second feature, it may be that the first feature is directly above or obliquely above the second feature, or it may simply mean that the first feature is higher in level than the second feature. When a first feature is “below”, “below” or “below” a second feature, it may be that the first feature is directly below or obliquely below the second feature, or it may simply mean that the first feature is lower in level than the second feature.

[0045] In the description of this specification, the description of the terms "one embodiment", "some embodiments", "embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0046] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A pre-installed positioning base for a variable frequency motor for an excavator, Features: The invention comprises a mounting plug plate (1) fixed to the bottom of a variable frequency motor and a mounting base (2) detachably fixed to a pre-installation position, wherein the mounting base (2) comprises two parallel and oppositely arranged sub-seats (21), a positioning slot (22) being formed between the ends of the two sub-seats (21) close to each other and the end surface of the pre-installation position, the two side ends of the mounting plug plate (1) are respectively slidably inserted into the positioning slot (22), and a limiting plate (3) is provided at an opening of one end of the sub-seat (21) of the positioning slot (22).

2. The pre-installation positioning base for the variable frequency motor for excavators according to claim 1, Features: The limiting plate (3) is detachably connected to the sub-seat (21); the limiting plate (3) can be fixed to any position of the sub-seat (21) along its own length direction and provided for the mounting plug plate (1) to abut and position.

3. The pre-installation positioning base for the variable frequency motor for excavators as claimed in claim 2, Features: The two ends of the limit plate (3) are respectively inserted into the two positioning slots (22) and slide along the length direction of the positioning slots (22); the limit plate (3) and the two sub-seats (21) are connected by two connecting plates (4); the sub-seats (21) are provided with first positioning holes (211) evenly spaced along their length direction; the limit plate (3) is provided with second positioning holes (31) near the two positioning slots (22); and the two ends of the connecting plate (4) are vertically provided with a first positioning column (41) and a second positioning column (42) respectively inserted into the first positioning hole (211) and the second positioning hole (31).

4. The pre-installation positioning base for the variable frequency motor for excavators as claimed in claim 3, Features: The second positioning column (42) is rotatably connected to the connecting plate (4) and fixed to the second positioning hole (31) via threads, and the first positioning column (41) is connected to the connecting plate (4) via threads.

5. The pre-installation positioning base for the variable frequency motor for excavators according to claim 1, Features: The opening spacing of the two positioning slots (22) at one end away from the limiting plate (3) is greater than the opening spacing at the other end.

6. The pre-installation positioning base for the variable frequency motor for excavators as claimed in claim 5, Features: The opening width of the two positioning slots (22) at one end away from the limiting plate (3) is greater than the opening width of the other end.

7. The pre-installation positioning base for the variable frequency motor for excavators according to claim 1, Features: The installation plug plate (1) comprises two half plug plates (11) which are detachably connected to both side ends of the variable frequency motor.

8. The pre-installation positioning base for the variable frequency motor for excavators as claimed in claim 7, Features: A buffer rubber strip (12) is provided at one end of the half plug plate (11) abutting against the limit plate (3).

9. The pre-installation positioning base for the variable frequency motor for excavators as claimed in claim 7, Features: A plurality of magnetic sheets (212) for magnetically fixing the half plug board (11) are arranged on one side end of the sub-seat (21) away from the positioning slot (22).

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