Motor position adjusting device

Abstract

The utility model belongs to the technical field of motor relative position adjusting devices, and particularly relates to a motor position adjusting device. The motor position adjusting device comprises a threaded adjusting rod, the end, used for being matched with a motor base, of the threaded adjusting rod is connected with a pushing assembly, the pushing assembly comprises a pushing sleeve and a thrust bearing arranged in the pushing sleeve, and the threaded adjusting rod extends into the pushing sleeve and is matched with the pushing sleeve in an anti-disengaging mode. The pushing assembly including the thrust bearing is arranged at the end, matched with the motor base, of the threaded adjusting rod, and the pushing sleeve of the pushing assembly makes contact with the side face of the motor base, so that point-shaped stress of the motor base in the prior art is changed, friction resistance of the matched face of the threaded adjusting rod and the motor base is reduced, and the service life of the motor base is prolonged. Therefore, the threaded adjusting rod can be fastened in a labor-saving manner, and the position of the motor can be conveniently adjusted; the thread adjusting rod is matched with the pushing assembly in an anti-disengaging mode, so that the thread adjusting rod can conveniently transmit acting force to the pushing assembly to achieve position adjustment of the motor.

Description

Technical Field

[0001] The utility model belongs to the technical field of motor relative position adjustment devices, and in particular relates to a motor position adjustment device. Background Technology

[0002] Belt-type oil pumping units have been widely used in oil field exploitation. The power source of the oil pumping unit is the electric motor. In the actual application process, it is necessary to keep the motor pulley and the output shaft pulley of the oil pumping unit reduction gearbox in a straight line, and the oil pumping unit motor and the reduction gearbox output shaft pulley are required to maintain a certain distance. If the belt is too loose, it will cause a large loss of electric energy. If it is too tight, it will shorten the service life of the belt. Therefore, it is necessary to ensure that the transmission belt has sufficient tension. Long-term operation of the oil pumping unit will cause the belt to age or wear. In order to ensure the normal operation of the oil pumping unit, it is necessary to adjust the belt tightness or replace the belt from time to time. When adjusting and replacing the belt, the position of the motor is generally adjusted by the motor top screw, and the position of the motor pulley and the reduction gearbox pulley must meet the "four-point straight line" requirement.

[0003] Currently, the motor base of the oil pump is mostly composed of a plate slide and a channel steel. The two ends of the plate slide are connected to the channel steel by bolts. The motor is fixed to the plate slide by bolts. A top screw is installed at one end of the channel steel to fix or abut the motor. The motor can be moved by rotating the top screw. Common motor top screws are usually composed of a fixed seat and an adjusting screw (threaded adjusting rod). The fixed seat abuts against the baffle in the slide rail of the motor base, and the front end of the adjusting screw abuts against the motor base. The operator can use the adjusting screw to push the motor to a predetermined position by rotating the rear end of the adjusting screw. For example, a Chinese utility model patent with authorization announcement number CN206370745U and authorization announcement date of August 1, 2017 discloses a belt-type oil pump motor position adjustment device, including an L-shaped support plate with a vertical plate and a horizontal plate perpendicular to each other, the horizontal plate is inserted and fixed in the track groove of the motor, and a through hole is provided on the vertical plate, and a top screw (threaded adjustment rod) is provided in the through hole. The top screw can be moved to push the motor to adjust the position of the motor. During the use of this motor position adjustment device, when the threaded adjustment rod is rotated to push the motor, the front end surface of the threaded adjustment rod directly presses against the side of the motor base in a point-like form, thereby generating a large friction force. It is more laborious to tighten the threaded adjustment rod and it is easy to cause damage to the force-bearing part of the motor base; when the threaded adjustment rod is not perpendicular to the motor base, the front end surface of the threaded adjustment rod will produce a deflection displacement on the contact surface of the motor base, causing the threaded adjustment rod to bend or damaged. Contents of utility model

[0004] The purpose of the utility model is to provide a motor position adjustment device to solve the problem that the motor position adjustment device in the prior art is relatively laborious to use.

[0005] To achieve the above object, the motor position adjustment device of the present utility model adopts the following technical solution:

[0006] A motor position adjustment device includes a threaded adjustment rod. One end of the threaded adjustment rod for cooperating with the motor base is connected with a pushing assembly. The pushing assembly includes a top sleeve and a thrust bearing arranged inside the top sleeve. The threaded adjustment rod extends into the top sleeve and is anti-disengagemently matched with the top sleeve.

[0007] The beneficial effect of the above technical solution is that: based on the improvement of the existing technology, the present utility model sets a pushing assembly including a thrust bearing at one end of the threaded adjustment rod cooperating with the motor base. The top sleeve of the pushing assembly contacts the side surface of the motor base, thereby changing the sliding friction between the threaded adjustment rod and the motor base in the prior art into the rolling friction between the top sleeve and the thrust bearing. Furthermore, the frictional resistance of the mating surface between the threaded adjustment rod and the motor base is reduced, so that the threaded adjustment rod can be tightened more labor-savingly and thus it is convenient to adjust the position of the motor; through the anti-disengagement cooperation between the threaded adjustment rod and the pushing assembly, it can prevent the threaded adjustment rod from disengaging from the top sleeve during the adjustment process, which is convenient for the threaded adjustment rod to transmit the acting force to the pushing assembly to achieve the position adjustment of the motor.

[0008] Further, a push plate is provided at the end of the threaded adjustment rod, and the push plate is in top-pushing cooperation with the thrust bearing.

[0009] The beneficial effect of the above technical solution is that: with such a setting, the tightening force of the threaded adjustment rod is transmitted through the push plate to convert the rotational movement of the threaded adjustment rod into a linear thrust, thereby pushing the thrust bearing to move in the direction close to the motor base, and thus it is convenient to adjust the position of the motor; at the same time, the contact area between the push plate and the thrust bearing is relatively large, which helps to evenly distribute the applied pressure on the contact surface of the thrust bearing, thereby reducing the stress per unit area and improving the service life of the bearing.

[0010] Further, a positioning rod is provided at the center of the push plate and inserted into the central hole of the thrust bearing.

[0011] The beneficial effect of the above technical solution is that: with such a setting, it is convenient to assemble the bearing on the positioning rod and also makes the push plate and the thrust bearing coaxial, avoiding the deviation of the threaded adjustment rod, so that the tightening force of the threaded adjustment rod can be transmitted more effectively and stably when the push plate is in top-pushing cooperation with the thrust bearing.

[0012] Further, a retaining ring is provided at the opening of the top sleeve, and the threaded adjustment rod and the top sleeve are anti-disengagemently connected through the retaining action between the retaining ring and the push plate.

[0013] The beneficial effect of the above technical solution is that such a setting can realize the anti-detachment connection between the threaded adjustment rod and the top sleeve through the blocking cooperation between the blocking ring and the push plate, and can facilitate the threaded adjustment rod to transmit the force to the push assembly to realize the position adjustment of the motor.

[0014] Furthermore, the retaining ring and the top sleeve are fixedly connected by welding.

[0015] The beneficial effect of the above technical solution is that: with such a setting, the welding method is easy to operate and the connection is reliable.

[0016] Furthermore, the end of the top sleeve away from the threaded adjustment rod is a closed structure.

[0017] The beneficial effect of the above technical solution is that: with such a setting, the top sleeve cooperates with the retaining ring to rotatably encapsulate the thrust bearing in the top sleeve, thereby preventing the bearing from being affected by the external environment, which is conducive to improving the service life of the top thrust assembly.

[0018] Furthermore, a lubricating oil hole is provided on the sleeve wall of the top sleeve.

[0019] The beneficial effect of the above technical solution is that such a setting can ensure that the bearing encapsulated in the top sleeve is effectively lubricated, thereby maintaining the rotation ability of the top push assembly and extending the service life of the top push assembly, thereby increasing the service life of the motor position adjustment device of the utility model.

[0020] Furthermore, the threaded adjustment rod comprises a first section of the adjustment rod close to the top sleeve and a second section of the adjustment rod threadedly connected to the first section of the adjustment rod.

[0021] The beneficial effects of the above technical solution are: such a setting, the threaded adjustment rod that is separately set, is convenient for carrying the threaded adjustment rod; the threaded connection makes the separation and connection of the first section adjustment rod and the second section adjustment rod more convenient and quick, and the connection is reliable.

[0022] Furthermore, the first section of the adjusting rod is provided with a rotation-stopping structure, and the push plate is formed by the flange at the corresponding end of the rotation-stopping structure.

[0023] The beneficial effects of the above technical solution are: such a setting can connect the first section of the adjusting rod and the second section of the adjusting rod by applying a force to the anti-rotation structure, which is convenient for operation; the push plate is formed by the flange of the anti-rotation structure, which is convenient for manufacturing the structural components on the first section of the adjusting rod, and the bearing can be limited and installed on the positioning rod. When the thrust bearing is pressed into the top sleeve, the push plate can form a push fit with the bearing to stably transmit the tightening force of the threaded adjusting rod.

[0024] Furthermore, the anti-rotation structure is a hexagonal structure.

[0025] The beneficial effects of the above technical solution are as follows: With such a setting, it is convenient to use a general tool to apply a force through the hexagonal structure to connect the pushing component and the threaded adjusting rod, which is convenient for operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Structural schematic diagram of the motor position adjustment device of the present utility model;

[0027] Figure 2 Exploded view of the structure of the pushing component of the present utility model;

[0028] Figure 3 Figure 2 Assembly drawing of;

[0029] Figure 4 Partial structural schematic diagram of the threaded adjusting rod of the present utility model;

[0030] Figure 5 Application schematic diagram of the motor position adjustment device of the present utility model;

[0031] Figure 6 is Figure 5 Enlarged view at A in.

[0032] In the figure: 100, adjustment device; 1, pushing component; 2, support seat; 3, guide seat; 4, threaded adjusting rod; 5, motor; 6, motor track;

[0033] 11, top sleeve; 111, lubricating oil hole; 12, bearing; 13, retaining ring; 41, second-stage adjusting rod; 411, force application structure; 412, smooth rod section; 413, external thread section; 414, internal thread hole; 42, first-stage adjusting rod; 421, positioning rod; 422, push plate; 423, anti-rotation structure; 424, mating part; 51, motor base. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] In order to make the objectives, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model, that is, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Usually, the components of the embodiments of the present utility model described and shown in the accompanying drawings herein can be arranged and designed in various different configurations.

[0035] Accordingly, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0036] It should be noted that relational terms such as "first" and "second" and the like that may appear are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, terms such as "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0037] The features and performance of the present invention will be further described in detail below in conjunction with embodiments.

[0038] Embodiment 1 of a motor position adjustment device of the present invention:

[0039] As Figure 1 shown, the motor position adjustment device 100 includes an adjustment assembly, a support base 2 and a guide base 3. The adjustment assembly includes a pushing assembly 1 and a threaded adjustment rod 4. The support base 2 and the guide base 3 have coaxial threaded through holes, and the threaded adjustment rod 4 is movably passed through the threaded through holes.

[0040] As Figures 1 to 4As shown, the threaded adjusting rod 4 includes a first-stage adjusting rod 42 close to the pushing component 1 and a second-stage adjusting rod 41 threadedly connected to the first-stage adjusting rod 42. Specifically, the second-stage adjusting rod 41 includes a rod body and a force-applying structure 411. The force-applying structure 411 is provided at one end of the rod body. The rod body includes a smooth rod section 412 and an external thread section 413. An internal thread hole 414 is provided at the end of the rod body away from the force-applying structure 411; a through hole is provided along the radial direction of the second-stage adjusting rod 41 on the smooth rod section 412; in this embodiment, the force-applying structure 411 is a hexagonal structure. In this way, during use, an operator can use tools such as a wrench to turn the force-applying structure 411 to rotate the second-stage adjusting rod 41, thereby driving the rotation of the first-stage adjusting rod 42, and further driving the rotation of the pushing component 1 to push the motor to move; or the threaded adjusting rod 4 can be rotated by inserting a lever into the through hole. In other embodiments, the end of the second-stage adjusting rod 41 away from the pushing component 1 can also adopt a square head structure or a form with a U-shaped groove provided at the end.

[0041] The first-stage adjusting rod 42 has a mating portion 424 connected to the second-stage adjusting rod 41, a positioning rod 421 for the assembly of the bearing 12, and an anti-rotation structure 423 provided between the positioning rod 421 and the mating portion 424; in this embodiment, the anti-rotation structure 423 is a hexagonal prism structure for applying a force to connect the first-stage adjusting rod 42 and the second-stage adjusting rod 41; a flange integrally formed is also provided at one end of the anti-rotation structure 423 close to the positioning rod 421. The flange is used to transmit the tightening force of the threaded adjusting rod 4 to the pushing component 1. The flange forms a pushing plate 422 of the anti-rotation structure 423. A positioning rod 421 inserted into the central hole of the bearing 12 is provided at the center of the pushing plate 422; the mating portion 424 has an external thread. In this way, the external thread of the mating portion 424 of the first-stage adjusting rod 42 is threadedly connected to the internal thread hole 414 of the first-stage adjusting rod 42, thus forming the threaded adjusting rod 4. In other embodiments, the anti-rotation structure 423 of the first-stage adjusting rod 42 can also be a square prism or other forms convenient for operation; or the pushing plate is provided at one end of the anti-rotation structure 423 close to the positioning rod 421 by welding, threaded connection or other means.

[0042] The push assembly 1 is arranged at one end of the first section adjusting rod 42 close to the motor base 51, and the push assembly 1 includes a push sleeve 11 and a bearing 12 arranged in the push sleeve 11. Specifically, the bearing 12 is assembled on the positioning rod 421 of the first section adjusting rod 42, and forms a push fit with the push plate 422 to facilitate the transmission of the tightening force of the threaded adjusting rod 4, and the bearing 12 can also be restricted in the push sleeve 11 through the push plate 422; the retaining ring 13 is pressed on the push plate 422 and fixedly connected to the push sleeve 11 by welding, so that the push plate 422 is also encapsulated in the push sleeve 11, so that the positioning rod 421 of the first section adjusting rod 42 extends into the top sleeve 11, and the retaining ring 13 and the push plate 422 are fixedly connected to the top sleeve 11. The push plate 422 forms a stop fit to form an anti-slip connection between the first section adjusting rod 42 and the push assembly 1; since the outer diameter of the retaining ring 13 is the same as the outer diameter of the top sleeve 11, and the inner diameter is larger than the outer diameter of the anti-rotation structure 423, after the retaining ring 13 and the top sleeve 11 are welded as a whole, it can ensure that the bearing 12 can rotate freely in the top sleeve 11 under the drive of the first section adjusting rod 42, so that the matching surfaces of the top sleeve 11 and the bearing 12 form rolling friction, thereby reducing the rotation resistance when adjusting the motor position. In this embodiment, the bearing 12 and the top sleeve 11 are matched with a micro-clearance, and the bearing 12 is a thrust bearing. In this way, the bearing 12 can effectively withstand the axial thrust transmitted by the threaded adjusting rod 4, and at the same time, it can determine and maintain the axial relative position between the first section adjusting rod 42 and the top sleeve 11, thereby effectively reducing the bending damage caused by the deflection displacement of the threaded adjusting rod 4.

[0043] In this embodiment, the top sleeve 11 is a cylinder with an opening at one end. Specifically, the end of the top sleeve 11 away from the threaded adjustment rod 4 is a closed structure. The inner cavity of the cylinder is the rotation space of the bearing 12. The depth of the top sleeve 11 is not less than the length of the first section adjustment rod 42 and the positioning rod 421. In this way, the bearing 12 and the positioning rod 421 can be encapsulated in the top sleeve 11.

[0044] In this embodiment, a lubricating oil hole 111 for lubricating the bearing is provided on the sleeve wall of the top sleeve 11 at a position relative to the bearing 12, so that the bearing 12 encapsulated in the top sleeve 11 can be effectively lubricated, thereby maintaining the rotation ability of the top push assembly 1 and extending the service life of the top push assembly 1.

[0045] Combined with the structure of the above-mentioned push assembly 1, when assembling the push assembly 1, the bearing 12 is assembled to the positioning rod 421 of the first section adjusting rod 42, and then the positioning rod 421 of the first section adjusting rod 42 equipped with the bearing 12 is installed into the top sleeve 11 until the end surface of the push plate 422 is not higher than the end surface of the open end of the top sleeve 11, and then the retaining ring 13 is covered on the top of the push plate 422 and the retaining ring 13 is connected to the top sleeve 11 as a whole by welding.

[0046] If Figure 1As shown in the figure, the support base 2 is arranged at one end of the threaded adjusting rod 4 close to the pushing component 1. The support base 2 is inserted and fixed in the groove of the motor track 6, and is used to provide a supporting force for the threaded adjusting rod 4 when adjusting the position of the motor, limit the axial movement direction of the threaded adjusting rod 4, and facilitate the better cooperation between the threaded adjusting rod 4 and the motor base 51. The guiding base 3 is arranged at one end of the threaded adjusting rod 4 close to the force-applying structure 411. The guiding base 3 is inserted into the groove of the motor track 6, so as to jointly ensure with the support base 2 that the threaded adjusting rod 4 contacts the motor base 51 vertically in a horizontal state, thereby avoiding the bending damage caused by the deflection displacement of the threaded adjusting rod 4.

[0047] Combined with the structure of the threaded adjusting rod 4, the guiding base 3 is assembled from the end of the second-section adjusting rod 41 with the internal-thread hole 414 onto the external-thread section 413 of the second-section adjusting rod 41, then the support base 2 is assembled onto the second-section adjusting rod 41, and finally the assembled pushing component 1 is pre-connected to the internal-thread hole 414 of the first-section adjusting rod 42 and the second-section adjusting rod 41. By turning the anti-rotation structure 423 with a wrench, the pushing component 1 and the threaded adjusting rod 4 are reliably connected.

[0048] As Figure 5 and Figure 6 shown, when the motor position adjusting device 100 of the present utility model is in use, first insert the support base 2 and the guiding base 3 of the motor position adjusting device 100 into the groove of the motor track 6, adjust the distance between the support base 2 and the motor base 51 so that there is a proper adjusting distance between the pushing component 1 and the surface of the motor base 51. Then remove the fixing bolts of the motor base 51 to enable the motor 5 to move. Rotate the threaded adjusting rod 4 until the pushing component 1 abuts against the surface of the motor base 51, and apply a torque to the threaded adjusting rod 4 to make the threaded adjusting rod 4 rotate so as to push the motor 5 to linearly move within the motor track 6. Until the motor 5 moves to the specified position of "four points in a line", re-tighten the fixing bolts of the motor base 51, and remove the motor position adjusting device 100.

[0049] Embodiment 2 of a motor position adjusting device of the present utility model:

[0050] In Embodiment 1 of a motor position adjusting device, the bearing is supported by the positioning rod of the first-section adjusting rod. In this embodiment, the first-section adjusting rod may not be provided, and the bearing and the top sleeve are directly assembled onto the second-section adjusting rod.

[0051] Embodiment 3 of a motor position adjusting device of the present utility model:

[0052] In Embodiment 1 of a motor position adjusting device, a push plate is arranged on the positioning rod of the first-section adjusting rod to limit the position of the bearing. In this embodiment, the push plate may not be provided, and the bearing is limited by a retaining ring or the anti-rotation structure of the first-section adjusting rod.

[0053] Embodiment 4 of a motor position adjustment device of the present utility model:

[0054] In Embodiment 1 of a motor position adjustment device, the second adjustment rod is threadedly connected to the first adjustment rod. In this embodiment, the second adjustment rod and the first adjustment rod are connected by means of insertion. Specifically, a prism is provided on either the mating portion of the first adjustment rod or the second adjustment rod. The prism can be in the form of a triangular prism, a quadrangular prism, a hexagonal prism, etc. Correspondingly, a prism groove matching the prism is provided on the mating portion of the second adjustment rod or the first adjustment rod.

[0055] Embodiment 5 of a motor position adjustment device of the present utility model:

[0056] In Embodiment 1 of a motor position adjustment device, the stop cooperation between the adjusting threaded rod and the top sleeve is achieved through the stop cooperation between the retaining ring and the push plate. In this embodiment, the retaining ring can be adjusted to a bearing adapted to the inner cavity of the top sleeve and the first adjustment rod.

[0057] Embodiment 6 of a motor position adjustment device of the present utility model:

[0058] In Embodiment 1 of a motor position adjustment device, the retaining ring and the top sleeve are fixedly connected by welding. In this embodiment, an external thread is provided on the outer periphery of the retaining ring. Correspondingly, an internal thread is provided on the inner side of the open end of the top sleeve. The retaining ring and the top sleeve are threadedly connected. In other embodiments, the retaining ring can be a sleeve device similar to the top sleeve. At this time, an external thread is provided on the outer periphery of the open end of the top sleeve, and the sleeve has an internal thread. The sleeve and the top sleeve are threadedly connected, and both can provide a rotating space while encapsulating the bearing.

[0059] The above is only the preferred embodiment of the present utility model and is not intended to limit the present utility model. The patent protection scope of the present utility model is subject to the claims. Any equivalent structural changes made by using the description and drawings of the present utility model should be included in the protection scope of the present utility model by the same token.

Claims

1. A motor position adjustment device, comprising a threaded adjustment rod, characterized in that: The threaded adjustment rod is connected to a push assembly at one end thereof for cooperating with the motor base. The push assembly includes a push sleeve and a thrust bearing arranged in the push sleeve. The threaded adjustment rod extends into the push sleeve and cooperates with the push sleeve to prevent it from falling off.

2. The motor position adjustment device according to claim 1, characterized in that: A push plate is provided at the end of the threaded adjustment rod, and the push plate is pushed and matched with the thrust bearing.

3. The motor position adjustment device according to claim 2, characterized in that: A positioning rod inserted into the center hole of the thrust bearing is provided at the center of the push plate.

4. The motor position adjustment device according to claim 2 or 3, characterized in that: A retaining ring is arranged at the opening of the top sleeve, and the threaded adjustment rod and the top sleeve are anti-detachably connected through the retaining ring and the push plate.

5. The motor position adjustment device according to claim 4, characterized in that: The retaining ring is fixedly connected to the top sleeve by welding.

6. The motor position adjustment device according to claim 1, 2 or 3, characterized in that: The end of the top sleeve away from the threaded adjusting rod is a closed structure.

7. The motor position adjustment device according to claim 6, characterized in that: A lubricating oil hole is arranged on the sleeve wall of the top sleeve.

8. The motor position adjustment device according to claim 2 or 3, characterized in that: The threaded adjustment rod comprises a first section of the adjustment rod close to the top sleeve and a second section of the adjustment rod threadedly connected to the first section of the adjustment rod.

9. The motor position adjustment device according to claim 8, characterized in that: The first section of the adjusting rod is provided with a rotation-stopping structure, and the push plate is formed by flanges at corresponding ends of the rotation-stopping structure.

10. The motor position adjustment device according to claim 9, characterized in that: The anti-rotation structure is a hexagonal structure.

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