Structure for preventing long-strip-hole bolt from moving in long-strip-hole direction

Abstract

The utility model provides a structure for preventing a long-strip-hole bolt from moving in the long-strip-hole direction. The structure comprises a motor bottom plate, a base plate, a limiting plate, a first bolt and a second bolt. A mounting table is arranged on the motor bottom plate and is used for placing a motor; a first long round hole is formed in the mounting table, and a base plate and a limiting plate are sequentially arranged on the lower surface of the motor bottom plate. A limiting structure is arranged between the base plate and the limiting plate; the first bolt penetrates through the motor bottom plate and the base plate, and fixing between the base plate and the motor bottom plate is achieved. The second bolt sequentially penetrates through the limiting plate, the base plate and the first long round hole to be connected with the nut, and relative fixation among the limiting plate, the base plate and the motor bottom plate is achieved. The position of the motor can be adjusted without loosening, other parts are not additionally processed, the structure is simple, and the installation is convenient.

Description

Technical Field

[0001] The utility model belongs to the field of motor installation, and particularly relates to a structure for preventing the movement of a bolt in an elongated hole along the direction of the elongated hole. Background Art

[0002] In mechanical equipment containing a motor, the rotation of the equipment is usually driven by the rotation of the motor. The motor is usually fixed to the motor base plate by bolts. In some equipment, in order to adjust the position of the motor, elongated holes are machined on the motor base plate. For such equipment, the tightness of the connecting bolts plays an important role. During the normal use of the equipment, due to the vibration and impact of the equipment, over time, the connecting bolts will inevitably become loose and move along the direction of the elongated hole. To prevent the damage of the motor and its connecting parts caused by the movement of the bolts along the elongated hole during work, it is particularly important to prevent the movement of the bolts along the elongated hole.

[0003] Currently, the main method for preventing the movement of the bolt in the elongated hole during work is to directly connect another backing plate to the motor base plate. A round hole with a diameter 0.5 mm larger than the major diameter of the bolt thread is machined on the backing plate. This method can achieve the function of preventing the bolt from moving along the elongated hole. However, when the position of the motor needs to be adjusted, another backing plate of a different size is required, which is time-consuming and material-consuming. Content of the Utility Model

[0004] In view of this, the purpose of the present utility model is to provide a structure for preventing the movement of a bolt in an elongated hole along the direction of the elongated hole to solve the above problems.

[0005] To achieve the above object, the technical solution of the present utility model is realized as follows:

[0006] A structure for preventing the movement of a bolt in an elongated hole along the direction of the elongated hole, comprising a motor base plate, a backing plate, a limiting plate, a first bolt and a second bolt; an installation platform is provided on the motor base plate, and the installation platform is used for placing the motor;

[0007] A first elongated round hole is provided on the installation platform. The backing plate and the limiting plate are sequentially arranged on the lower surface of the motor base plate; a limiting structure is provided between the backing plate and the limiting plate;

[0008] The first bolt passes through the motor base plate and the backing plate and is connected with a nut, realizing the fixation between the backing plate and the motor base plate;

[0009] The second bolt sequentially passes through the limiting plate, the backing plate and the first elongated round hole and is connected with a nut, realizing the relative fixation among the limiting plate, the backing plate and the motor base plate.

[0010] Furthermore, the motor base plate is provided with two parallel convex platforms, and two first elongated round holes are provided on each convex platform, which are in fit with the installation holes of the motor.

[0011] Further, one base plate threaded hole is provided on each side of the first long circular hole on the motor base plate, and the cushion plate is provided with cushion plate through holes corresponding to the base plate threaded holes. The first bolt sequentially passes through the cushion plate through hole and the base plate threaded hole to fix the cushion plate and the motor base plate.

[0012] Further, a second long circular hole corresponding to the first long circular hole is also provided in the middle of the cushion plate; several grooves are respectively provided between the second long circular hole and the two cushion plate through holes on one side of the cushion plate.

[0013] Further, two convex platforms are provided on the limiting plate, and the two convex platforms respectively correspond to the grooves on both sides of the cushion plate; a limiting through hole for the second bolt to pass through is provided in the middle of the limiting plate.

[0014] Further, a limiting structure is formed between the groove and the convex platform; the convex platform can be clamped into the groove, and the number of grooves on one side is at least 3.

[0015] Further, the length of the limiting plate is a, and the minimum length between the tangent points of the two cushion plate through holes is b, then a < b, so that the limiting plate can be moved and adjusted between the two cushion plate through holes.

[0016] Further, the inner diameter of the cushion plate through hole is 0.5 mm larger than the major diameter of the thread of the second bolt.

[0017] Compared with the prior art, the structure for preventing the bolt in the long circular hole from moving along the long circular hole direction of the present utility model has the following beneficial effects:

[0018] The structure for preventing the bolt in the long circular hole from moving along the long circular hole direction of the present utility model has a simple structure. It is improved on the basis of the original structure, which improves the use efficiency and stability of the original equipment, has a low manufacturing cost and high flexibility; and can also realize the adjustment of the motor position without loosening without additionally machining other parts, saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting a part of the present utility model are used to provide a further understanding of the present utility model. The schematic embodiments of the present utility model and their descriptions are used to explain the present utility model and do not constitute an improper limitation to the present utility model. In the drawings:

[0020] Figure 1 is a schematic diagram of a structure for preventing the bolt in the long circular hole from moving along the long circular hole direction according to an embodiment of the present utility model;

[0021] Figure 2 is a schematic diagram of the motor base plate according to an embodiment of the present utility model;

[0022] Figure 3 is a schematic diagram of the cushion plate according to an embodiment of the present utility model;

[0023] Figure 4 Schematic diagram of the limit plate according to the embodiment of the present utility model.

[0024] Explanation of reference numerals in the drawings:

[0025] 1. Motor base plate; 11. Installation table; 12. First long circular hole; 13. Base plate threaded hole; 2. Spacer; 21. Spacer through hole; 22. Second long circular hole; 23. Groove; 3. Limit plate; 31. Boss; 32. Limit through hole; 4. First bolt; 5. Second bolt. Specific embodiments

[0026] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0027] The present utility model will be described in detail below with reference to the drawings and in conjunction with the embodiments.

[0028] A structure for preventing the bolt in the long circular hole from moving along the direction of the long circular hole, as Figures 1 - 4 shown, includes a motor base plate 1, a spacer 2, a limit plate 3, a first bolt 4 and a second bolt 5; an installation table 11 is provided on the motor base plate 1, and the installation table 11 is used for placing the motor;

[0029] A first long circular hole 12 is provided on the installation table 11, and the spacer 2 and the limit plate 3 are sequentially arranged on the lower surface of the motor base plate 1; a limiting structure is provided between the spacer 2 and the limit plate 3;

[0030] The first bolt 4 passes through the motor base plate 1 and the spacer 2 and is connected with a nut, realizing the fixation between the spacer 2 and the motor base plate 1;

[0031] The second bolt 5 sequentially passes through the limit plate 3, the spacer 2 and the first long circular hole 12 and is connected with a nut, realizing the relative fixation among the limit plate 3, the spacer 2 and the motor base plate 1.

[0032] Preferably, two parallel bosses 31 are provided on the motor base plate 1, and two first long circular holes 12 are provided on each boss 31, which are fitted with the installation holes of the motor.

[0033] Preferably, a base plate threaded hole 13 is provided on each side of the first long circular hole 12 on the motor base plate 1, and a spacer through hole corresponding to the base plate threaded hole 13 is provided on the spacer 2. The first bolt 4 passes through the spacer through hole and the base plate threaded hole 13 to cooperate to realize the fixation between the spacer 2 and the motor base plate 1,

[0034] Preferably, a nut can also be provided to cooperate with the first bolt 4 to further realize fastening.

[0035] Preferably, a second long circular hole 22 corresponding to the first long circular hole 12 is further provided in the middle of the backing plate 2; several grooves 23 are respectively provided between the second long circular hole 22 on one side of the backing plate 2 and the two through holes of the backing plate 2;

[0036] The first long circular hole 12 and the second long circular hole 22 can meet the adjustment of the motor position, and can be fixed in cooperation with the limiting plate 3.

[0037] Preferably, two bosses 31 are provided on the limiting plate 3, and the two bosses 31 respectively correspond to the grooves 23 on both sides of the backing plate 2; a limiting through hole 32 for the second bolt 5 to pass through is provided in the middle of the limiting plate 3.

[0038] Preferably, a limiting structure is formed between the groove 23 and the boss 31; the boss 31 can be clamped into the groove 23, and the number of grooves 23 on one side is at least 3, which is convenient for adjusting the position of the motor.

[0039] Preferably, the length of the limiting plate 3 is a, and the minimum length between the tangent points of the two through holes of the backing plate 2 is b, then a < b, so that the limiting plate 3 can move and adjust between the two through holes of the backing plate 2 to avoid adjustment interference.

[0040] Preferably, the inner diameter of the through hole of the backing plate 2 is 0.5 mm larger than the major diameter of the thread of the second bolt 5, which can limit the movement of the motor fixing bolt;

[0041] The backing plate 2 is fixed to the motor base plate 1 through the first bolt 4 to achieve fixation. The boss 31 of the limiting plate 3 is inserted into the groove 23 of the backing plate 2 to limit the lateral movement of the limiting plate 3. When the position of the motor needs to be adjusted, the position where the boss 31 of the limiting plate 3 changes and is inserted into the groove 23 of the backing plate 2 is adjusted to achieve the corresponding adjustment of the positions of the limiting plate 3 and the motor.

[0042] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be covered by the scope of the claims and the description of the present invention.

[0043] The above is only a preferred embodiment of the present invention, and it is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A structure for preventing a long-hole bolt from moving along the direction of the long hole, characterized in that: It includes a motor base plate, a cushion plate, a limit plate, a first bolt and a second bolt; an installation platform is provided on the motor base plate, and the installation platform is used for placing the motor; a first long circular hole is provided on the installation platform, and the cushion plate and the limit plate are sequentially arranged on the lower surface of the motor base plate; a limiting structure is provided between the cushion plate and the limit plate; the first bolt passes through the motor base plate and the cushion plate, realizing the fixation between the cushion plate and the motor base plate; the second bolt sequentially passes through the limit plate, the cushion plate and the first long circular hole and is connected with a nut, realizing the relative fixation among the limit plate, the cushion plate and the motor base plate.

2. A structure for preventing a long-hole bolt from moving along the direction of the long hole according to claim 1, characterized in that: Two parallel installation platforms are provided on the motor base plate, and two first long circular holes are provided on each installation platform, which are matched with the installation holes of the motor.

3. A structure for preventing a long-hole bolt from moving along the direction of the long hole according to claim 1, characterized in that: A bottom plate threaded hole is respectively provided on both sides of the first long circular hole on the motor base plate, and a cushion plate through hole corresponding to the bottom plate threaded hole is provided on the cushion plate. The first bolt sequentially passes through the cushion plate through hole and the bottom plate threaded hole to realize the fixation between the cushion plate and the motor base plate.

4. A structure for preventing the long-hole bolt from moving along the long-hole direction according to claim 3, characterized in that: A second long circular hole corresponding to the first long circular hole is further provided in the middle of the cushion plate; a plurality of grooves are respectively provided between the second long circular hole on one side of the cushion plate and the two cushion plate through holes.

5. A structure for preventing a long-hole bolt from moving along the direction of the long hole according to claim 4, characterized in that: Two convex platforms are provided on the limit plate, and the two convex platforms respectively correspond to the grooves on both sides of the cushion plate; a limit through hole for the second bolt to pass through is provided in the middle of the limit plate.

6. A structure for preventing a long-hole bolt from moving along the direction of the long hole according to claim 5, characterized in that: A limiting structure is formed between the groove and the convex platform; the convex platform can be clamped into the groove, and the number of grooves on one side is at least 3.

7. A structure for preventing a long-hole bolt from moving along the direction of the long hole according to claim 4, characterized in that: The length of the limit plate is a, and the minimum length between the tangent points of the two cushion plate through holes is b, then a < b, realizing that the limit plate can move and adjust between the two cushion plate through holes.

8. A structure for preventing a long-hole bolt from moving along the direction of the long hole according to claim 3, characterized in that: The inner diameter of the cushion plate through hole is 0.5 mm larger than the major diameter of the thread of the second bolt.

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