Power head main shaft load-bearing bearing elastic pressing structure

Abstract

The utility model relates to the technical field of power transmission, and discloses a power head main shaft load-bearing bearing elastic pressing structure which comprises a base and a load-bearing shaft, a pre-tightening adjusting mechanism is arranged in the load-bearing shaft, and the pre-tightening adjusting mechanism comprises a retainer, an adjusting nut, a connecting plate, a sliding abutting plate, a second sliding gasket, an adjusting spring and an elastic rod. And one end of the retainer is fixedly connected with one end of the bearing shaft. According to the power head main shaft load-bearing bearing elastic pressing structure, through the use of the retainer, the adjusting nut, the connecting plate and the sliding abutting plate, the position of the connecting plate can be changed, the effect that the connection between the main bearing and the cutterhead is changed according to actual requirements is achieved, and through the use of an adjusting spring, an elastic rod, a first sliding gasket and a connecting rod, the main bearing and the cutterhead can be adjusted conveniently. And therefore, the problem of how to adjust and change the pre-tightening force is solved, and the effect of changing the pre-tightening force according to actual requirements can be achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to power transmission technical field, concretely is a kind of power head main bearing heavy bearing elastic pressure structure. BACKGROUND

[0002] Automobile hinge is the important connecting piece of automobile door, engine cover, luggage compartment cover and other components, and its machining precision and strength directly affect the safety, durability and use experience of automobile, and the power head of automobile hinge machining is the key equipment for hinge machining.

[0003] The power head is a key component in mechanical equipment, mainly used for transmitting power and supporting rotary motion, and the main bearing and heavy bearing are the core components of the power head, and their performance directly affects the operating efficiency and stability of the equipment. The elastic pressure structure is an important design for optimizing the performance of the bearing, ensuring stable operation of the equipment in high pressure and high load environment.

[0004] The existing power head main bearing heavy bearing elastic pressure mechanism still has the following problems in actual use: the traditional bearing structure is prone to insufficient or excessive pre-tightening force under high load conditions, which causes increased bearing wear and vibration, and even affects equipment precision. It cannot adjust the pre-tightening force according to the actual situation, so the ability to adjust the pre-tightening force and absorb vibration is limited, and it is difficult to meet the needs of modern high-precision equipment.

[0005] Therefore, the utility model provides a kind of power head main bearing heavy bearing elastic pressure structure. UTILITY MODEL CONTENT

[0006] In view of the deficiencies of the prior art, the utility model provides a kind of power head main bearing heavy bearing elastic pressure structure, which has the advantages of being able to adjust the pre-tightening force of the bearing according to the situation and improving the service life of the overall equipment, solving the problems raised in the background art.

[0007] The utility model provides the following technical scheme: a kind of power head main bearing heavy bearing elastic pressure structure, including base and bearing shaft, the inside of the bearing shaft is provided with pre-tightening adjusting mechanism, the pre-tightening adjusting mechanism includes retainer, adjusting nut, connecting plate, sliding abutment plate, second sliding gasket, adjusting spring and elastic rod, one end of the retainer is fixedly connected with the one end of bearing shaft, the inside of the adjusting nut is connected in screw thread with the outer surface of retainer, the right side of sliding abutment plate is abutted with the left side of adjusting nut, the right side of connecting plate is fixedly installed with the left side of sliding abutment plate, the left side of second sliding gasket is fixedly connected with the left side of connecting plate, one end of adjusting spring is fixedly installed with the left side of second sliding gasket, one end of elastic rod is fixedly installed with the left side of second sliding gasket.

[0008] Preferably, the inner part of the sliding abutting plate is in sliding connection with the smooth outer surface of the retainer, and the outer surface of the second sliding gasket is in sliding connection with the inner wall of the load bearing shaft.

[0009] Preferably, one end of the elastic rod is fixedly provided with the first sliding gasket, and the right side of the first sliding gasket is fixedly provided with one end of the adjusting spring.

[0010] Preferably, the left side of the base is provided with a main shaft motor, the inner part of the main shaft motor is provided with a power head, the outer surface of the load bearing shaft is provided with a cutter head, and the right side of the cutter head is in abutment with the left side of the main bearing.

[0011] Preferably, the outer surface of the first sliding gasket is in sliding connection with the inner wall of the load bearing shaft, the left side of the first sliding gasket is fixedly provided with a connecting rod, and the connecting rod is fixedly connected with the right side of the main bearing.

[0012] Preferably, one end of the power head is fixedly provided with one end of the load bearing shaft, and the outer surface of the power head is provided with a locking nut, and the right side of the locking nut is in abutment with the left side of the cutter head.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The power head main bearing load bearing spring structure, through the use of retainer, adjusting nut, connecting plate and sliding abutting plate, the position of the connecting plate can be changed, the connection between the main bearing and the cutter head is achieved, the effect of changing according to actual demand is achieved, through the use of adjusting spring, elastic rod, first sliding gasket and connecting rod, the vibration and impact generated on the main bearing can be reduced, the direct impact on the main bearing is reduced, the effect of avoiding local overload and prolonging the overall service life is achieved, thereby solving the problem of how to adjust and change the pre-tightening force, the effect of changing the pre-tightening force according to actual demand can be achieved, the effect of adjusting the pre-tightening force and absorbing vibration is improved, the damage to the overall equipment is avoided, and the operation precision and the service life of the equipment are also improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a whole structure schematic view of the utility model Figure 1 power head;

[0017] Figure 3 It is a pre-tightening adjusting mechanism structure schematic view of the utility model Figure 1 .

[0018] In the figure: 1, base; 2, main shaft motor; 3, power head; 4, load bearing shaft; 5, cutter head; 6, locking nut; 7, main bearing; 8, connecting rod; 9, retainer; 10, adjusting nut; 11, connecting plate; 12, adjusting spring; 13, elastic rod; 14, first sliding gasket; 15, pre-tightening adjusting mechanism; 16, sliding abutment plate; 17, second sliding gasket. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0020] Please refer to Figure 2 and Figure 3 A power head main bearing load bearing pre-tightening structure, including base 1 and load bearing 4, the inside of load bearing 4 is provided with pre-tightening adjusting mechanism 15, pre-tightening adjusting mechanism 15 includes retainer 9, adjusting nut 10, connecting plate 11, sliding abutment plate 16, second sliding gasket 17, adjusting spring 12 and elastic rod 13, one end of retainer 9 is fixedly connected with one end of load bearing 4, the inside of adjusting nut 10 is threadedly connected with the threaded surface of retainer 9, the right side of sliding abutment plate 16 is abutted with the left side of adjusting nut 10, the right side of connecting plate 11 is fixedly installed with the left side of sliding abutment plate 16, the right side of second sliding gasket 17 is fixedly connected with the left side of connecting plate 11, one end of adjusting spring 12 is fixedly installed with the left side of second sliding gasket 17, one end of elastic rod 13 is fixedly installed with the left side of second sliding gasket 17, the inside of sliding abutment plate 16 is slidably connected with the smooth surface of retainer 9, the surface of second sliding gasket 17 is slidably connected with the inner wall of load bearing 4, one end of elastic rod 13 is fixedly installed with first sliding gasket 14, the right side of first sliding gasket 14 is fixedly installed with one end of adjusting spring 12, the surface of first sliding gasket 14 is slidably connected with the inner wall of load bearing 4, the left side of first sliding gasket 14 is fixedly installed with connecting rod 8, and one end of connecting rod 8 is fixedly connected with the right side of main bearing 7, by the use of retainer 9, adjusting nut 10, connecting plate 11, sliding abutment plate 16, second sliding gasket 17, adjusting spring 12, elastic rod 13, first sliding gasket 14 and connecting rod 8, the pre-tightening force can be changed according to actual needs, the effect of adjusting pre-tightening force and absorbing vibration is improved, the damage to the overall equipment is avoided, and the operation precision and the service life of the equipment are improved.

[0021] Please refer to Figure 1 andFigure 2 A spindle motor 2 is located on the left side of the base 1. A power head 3 is located inside the spindle motor 2. A cutter head 5 is located on the outer surface of the load-bearing shaft 4. The right side of the cutter head 5 abuts against the left side of the main bearing 7. One end of the power head 3 is fixedly installed to one end of the load-bearing shaft 4. A locking nut 6 is located on the outer surface of the power head 3, and the right side of the locking nut 6 abuts against the left side of the cutter head 5. By setting the power head 3 inside the spindle motor 2 and fixing it to one end of the load-bearing shaft 4, efficient and stable power transmission is achieved. As a key component connecting the spindle motor 2 and the load-bearing shaft 4, the power head 3 ensures that the rotational power generated by the spindle motor 2 can be accurately and losslessly transmitted to the load-bearing shaft 4, thereby driving the cutter head 5 to work efficiently. At the same time, the setting of the locking nut 6 effectively strengthens the connection between the power head 3 and the load-bearing shaft 4, preventing loosening due to vibration or load changes during operation, and further ensuring stable power transmission and stable operation of the cutter head 5.

[0022] Working principle: During use, when adjusting the preload between the main bearing 7 and the cutter head 5, the inner part of the adjusting nut 10 can be rotated at the position where the threaded groove is opened on the outer surface of the cage 9. This rotation causes the adjusting nut 10 to move to the left side of the outer surface of the cage 9. As the adjusting nut 10 moves, the left side of the adjusting nut 10 can slide against the sliding abutment plate 16 on the smooth surface of the outer surface of the cage 9. Consequently, the position where the connecting plate 11 is fixedly installed on the left side of the sliding abutment plate 16 can drive the outer surface of the second sliding washer 17 to bear the load. The inner wall of shaft 4 slides, and one end of connecting rod 8 abuts against the right side of main bearing 7, so that the change in distance between main bearing 7 and cutter head 5 changes the preload between cutter head 5 and main bearing 7. When adjusting the preload, the position of adjusting spring 12 and elastic rod 13 is synchronously compressed between second sliding pad 17 and first sliding pad 14, so as to ensure that cutter head 5 always maintains appropriate tightness during operation. Even without compressing adjusting spring 12 and elastic rod 13, it can also absorb vibration and impact during equipment operation and improve operational stability.

[0023] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A spring-loaded structure for a power head main bearing, characterized in that: The system includes a base (1) and a load-bearing shaft (4). The load-bearing shaft (4) has a pre-tightening adjustment mechanism (15) inside. The pre-tightening adjustment mechanism (15) includes a retainer (9), an adjusting nut (10), a connecting plate (11), a sliding abutment plate (16), a second sliding washer (17), an adjusting spring (12), and an elastic rod (13). One end of the retainer (9) is fixedly connected to one end of the load-bearing shaft (4). The interior of the adjusting nut (10) is connected to the retainer (9). The outer surface is threaded, the right side of the sliding abutment plate (16) abuts against the left side of the adjusting nut (10), the right side of the connecting plate (11) is fixedly installed with the left side of the sliding abutment plate (16), the right side of the second sliding washer (17) is fixedly connected with the left side of the connecting plate (11), one end of the adjusting spring (12) is fixedly installed with the left side of the second sliding washer (17), and one end of the elastic rod (13) is fixedly installed with the left side of the second sliding washer (17).

2. The spring-loaded structure for the main bearing of a power head according to claim 1, characterized in that: The interior of the sliding contact plate (16) is slidably connected to the smooth outer surface of the retainer (9), and the outer surface of the second sliding pad (17) is slidably connected to the inner wall of the load-bearing shaft (4).

3. The spring-loaded structure for the main bearing of a power head according to claim 1, characterized in that: One end of the elastic rod (13) is fixedly installed with a first sliding pad (14), and the right side of the first sliding pad (14) is fixedly installed with one end of the adjusting spring (12).

4. The spring-loaded structure of the main bearing of a power head according to claim 1, characterized in that: A spindle motor (2) is provided on the left side of the base (1), and a power head (3) is provided inside the spindle motor (2). A cutter head (5) is provided on the outer surface of the load-bearing shaft (4), and the right side of the cutter head (5) abuts against the left side of the main bearing (7).

5. The spring-loaded structure of the main bearing of a power head according to claim 3, characterized in that: The outer surface of the first sliding pad (14) is slidably connected to the inner wall of the load-bearing shaft (4). A connecting rod (8) is fixedly installed on the left side of the first sliding pad (14), and the connecting rod (8) is fixedly connected to the right side of the main bearing (7).

6. The spring-loaded structure of the main bearing of a power head according to claim 4, characterized in that: One end of the power head (3) is fixedly installed with one end of the load-bearing shaft (4). A locking nut (6) is provided on the outer surface of the power head (3), and the right side of the locking nut (6) abuts against the left side of the cutter head (5).

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