Connecting mandrel for servo motor of automobile air conditioner

Abstract

The utility model discloses a connecting mandrel for a servo motor of an automobile air conditioner, and relates to the technical field of connecting mandrels, the connecting mandrel for the servo motor of the automobile air conditioner comprises a power input shaft, the bottom end of the power input shaft is fixedly connected with a first conveying disc; the first conveying disc is in threaded connection with the elastic membrane through a locking bolt; the elastic membrane is in threaded connection with the second transmission disc through a locking bolt; the bottom end of the second transmission disc is fixedly connected with the power output shaft; the first transmission disc and the second transmission disc are of the same structure. According to the utility model, after the power input shaft is welded with the first transmission disc and the power output shaft is welded with the second transmission disc, the elastic membrane is in threaded connection through the locking bolt, so that the core shaft is compact in structure, free of back clearance, high in strength, long in service life, free of rotating clearance, free of temperature and oil stain influence, acid-resistant, alkali-resistant and corrosion-resistant.

Description

TECHNICAL FIELD

[0001] The utility model relates to connecting mandrel technical field, specifically a kind of connecting mandrel for automobile air conditioner servo motor. BACKGROUND

[0002] Mandrel is a kind of mechanical parts, usually used for supporting, positioning or transmitting torque. It has been widely used in many fields, mandrel is generally cylindrical, with high precision and surface finish. Its material is usually steel, alloy steel or other high-strength materials to ensure that it can withstand large load and torque during use. The diameter and length of mandrel can be designed and customized according to specific application requirements. In some cases, mandrel may have keyway, spline and other structures to connect and transmit torque with other parts.

[0003] The traditional mandrel is made by one-piece cutting. This mandrel can only play a hard transmission effect when transmitting. When the mandrel receives radial force, it cannot buffer or compensate the angle of the radial force, which leads to the deflection of the mandrel transmission, which greatly affects the transmission efficiency and accuracy of the mandrel. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a kind of connecting mandrel for automobile air conditioner servo motor, power input shaft and power output shaft are installed and fixed with elastic diaphragm, and the transmission effect of mandrel is improved;To solve the technical problems proposed in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A kind of connecting mandrel for automobile air conditioner servo motor, comprising

[0007] Power input shaft, the bottom end of the power input shaft is fixedly connected with first transmission disc;The first transmission disc is connected with elastic diaphragm by lock bolt and screw thread;The elastic diaphragm is connected with second transmission disc by lock bolt and screw thread;The bottom end of the second transmission disc is fixedly connected with power output shaft;

[0008] The first transmission disc and the second transmission disc are composed of the same structure.

[0009] As a further technical scheme of the utility model, the power input shaft and the power output shaft are wrapped with shaft sleeve on the outside;The outer surface of the shaft sleeve is annularly and symmetrically provided with a plurality of reinforcing ribs.

[0010] As a further technical scheme of the utility model, the reinforcing rib is designed in arc shape, the front end of the two reinforcing ribs is fixedly connected with transmission gear and transmission wheel respectively, and the bottom end is fixedly connected with end plate.

[0011] As a further technical scheme of the utility model, the transmission gear is provided with a gear, and the transmission gear and the transmission wheel are fixedly connected with the shaft sleeve.

[0012] As a further technical scheme of the utility model, a plurality of clamping blocks are fixedly installed at the periphery of the power input shaft 1 on the outer side of the transmission gear, the total number of the plurality of clamping blocks is even, and the clamping blocks correspond to each other with respect to the center of the power input shaft, a connecting thread is formed in the inner side of the clamping block, a connecting hole is formed through the inner center position of the clamping block, and a clamping groove is arranged between two adjacent clamping blocks.

[0013] As a further technical scheme of the utility model, the two end plates are fixedly connected with the first transmission disc and the second transmission disc respectively; and the surfaces of the first transmission disc and the second transmission disc are provided with annular openings corresponding to the lock bolts.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] In use, the elastic diaphragm between the first transmission disc and the second transmission disc is made of stainless steel and stacked by a plurality of diaphragms, has high elasticity and torsional stiffness, can provide reliable power transmission and positioning functions, can absorb vibration and impact and compensate radial, angular and axial deviations, effectively protects other mechanical elements, and prolongs the service life of the mandrel.

[0016] In installation, the lock bolts are threadedly connected with the first transmission disc and the second transmission disc, and then are threadedly connected with the end plates, thereby playing a transmission role on the whole, greatly improving transmission efficiency and transmission accuracy.

[0017] The power input shaft and the first transmission disc, and the power output shaft and the second transmission disc are welded, and then the elastic diaphragm is threadedly connected through the lock bolts, so that the mandrel structure is compact, has zero backlash, high strength, long service life, no rotation gap, is not affected by temperature and oil stains, is resistant to acid, alkali and corrosion. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a three-dimensional structure schematic view of the utility model.

[0019] Figure 2 is a top view of the utility model Figure 1 .

[0020] Figure 3 is a right view of the utility model Figure 1 .

[0021] Figure 4 is a three-dimensional structure schematic view of the utility modelFigure 3 A-A cross-sectional view of the present application.

[0022] Figure 5 is the partial enlarged view of the present application Figure 1 .

[0023] In the figure: 1 - power input shaft, 2 - transmission gear, 3 - reinforcing rib plate, 4 - end plate, 5 - first transmission disc, 6 - elastic diaphragm, 7 - locking bolt, 8 - second transmission disc, 9 - shaft sleeve, 10 - power output shaft, 11 - transmission wheel, 12 - clamping block, 13 - connecting thread, 14 - connecting hole, 15 - clamping groove. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the present application.

[0025] Please refer to Figures 1-5 , in the embodiments of the present application, a connecting mandrel for automobile air conditioner servo motor, power input shaft 1, the bottom end of the power input shaft 1 is fixedly connected with the first transmission disc 5; the first transmission disc 5 is threadedly connected with the elastic diaphragm 6 through the locking bolt 7; the elastic diaphragm 6 is threadedly connected with the second transmission disc 8 through the locking bolt 7; the bottom end of the second transmission disc 8 is fixedly connected with the power output shaft 10;

[0026] The first transmission disc 5 and the second transmission disc 8 are composed of the same structure.

[0027] By adopting the above technical scheme, when in use, the elastic diaphragm 6 located between the first transmission disc 5 and the second transmission disc 8 is a stainless steel diaphragm: made of stainless steel, stacked by multiple diaphragms, has high elasticity and torsional stiffness, can provide reliable power transmission and positioning function, the diaphragm can absorb vibration and impact and compensate radial, angular and axial deviation, effectively protects other mechanical elements, and prolongs the service life of the mandrel.

[0028] In the embodiments, the power input shaft 1 and the power output shaft 10 are wrapped with the shaft sleeve 9 on the outside; the outer surface of the shaft sleeve 9 is annularly and symmetrically provided with multiple reinforcing rib plates 3;

[0029] The reinforcing rib plates 3 are arc-shaped in shape, the front ends of the two reinforcing rib plates 3 are fixedly connected with the transmission gear 2 and the transmission wheel 11 respectively, and the bottom ends are fixedly connected with the end plate 4.

[0030] By adopting the technical scheme, the power input shaft 1 is welded with the first transmission disc 5 and the power output shaft 10 is welded with the second transmission disc 8, then the elastic diaphragm 6 is threadedly connected through the locking bolt 7, so that the core shaft structure is compact, zero backlash, high in strength, long in service life, free from rotation gap, not affected by temperature and oil stains, resistant to acid, alkali and corrosion.

[0031] The transmission gear 2 is provided with a gear in the embodiment, and the transmission gear 2 and the transmission wheel 11 are fixedly connected with the shaft sleeve 9.

[0032] In the embodiment, a plurality of clamping blocks 12 are fixedly installed at the periphery of the power input shaft 1 at the outer side of the transmission gear 2, the total number of the plurality of clamping blocks 12 is even, and the clamping blocks 12 correspond to each other about the center of the power input shaft 1, a connecting thread 13 is formed in the inner side of the clamping block 12, a connecting hole 14 is formed through the inner center position of the clamping block 12, and a clamping groove 15 is arranged between two adjacent clamping blocks 12.

[0033] The two end plates 4 are fixedly connected with the first transmission disc 5 and the second transmission disc 8 respectively, and the surfaces of the first transmission disc 5 and the second transmission disc 8 are provided with annular openings corresponding to the locking bolts 7.

[0034] By adopting the technical scheme, when installing, the locking bolt 7 is threadedly connected with the first transmission disc 5 and the second transmission disc 8, and then the end plate 4 is threadedly connected, so that the whole plays a transmission role, greatly improves the transmission efficiency and transmission accuracy.

[0035] The working principle of the utility model is: when using, the elastic diaphragm 6 between the first transmission disc 5 and the second transmission disc 8, the elastic diaphragm 6 is a stainless steel diaphragm: the material is stainless steel, and a plurality of diaphragms are stacked for use, which has high elasticity and torsional stiffness, can provide reliable power transmission and positioning function, the diaphragm can absorb vibration and impact and compensate radial, angular and axial deviation, effectively protect other mechanical elements, and prolong the service life of the core shaft.

[0036] When installing, the locking bolt 7 is threadedly connected with the first transmission disc 5 and the second transmission disc 8, and then the end plate 4 is threadedly connected, so that the whole plays a transmission role, greatly improves the transmission efficiency and transmission accuracy.

[0037] Meanwhile, the structure of the transmission gear 2 position can be connected in different ways, the transmission gear 2 can be connected to its corresponding gear or worm structure through the teeth on its outer side; at the same time, the clamping block 12 and the clamping groove 15 can realize the clamping process through their special structure; then, the threaded structure inside the clamping block 12 can realize threaded connection, finally, the connecting hole inside the clamping block 12 can connect the shaft structure with the connecting hole 14, the specific connection method is that two groups of symmetrical connecting holes 14 and the shaft structure with the connecting hole 14 form a straight line, and the connection process is realized through the connecting bolt.

[0038] After the power input shaft 1 and the first transmission disc 5, the power output shaft 10 and the second transmission disc 8 are welded, then the elastic diaphragm 6 is connected through the locking bolt 7, so that the mandrel structure is compact, zero backlash, high strength, long service life, no rotation gap, not affected by temperature and oil, acid and alkali resistant corrosion.

[0039] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0040] In addition, it should be understood that although the present application is described in the specification in terms of embodiments, not every embodiment contains only one independent technical solution, and the description of the specification is only for the sake of clarity, and the person skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that can be understood by the person skilled in the art.

Claims

1. A connecting spindle for an automotive air conditioning servo motor, characterized in that: include A power input shaft (1) is fixedly connected at its bottom end to a first transmission disc (5); the first transmission disc (5) is threadedly connected to an elastic diaphragm (6) by a locking bolt (7); the elastic diaphragm (6) is threadedly connected to a second transmission disc (8) by a locking bolt (7); the bottom end of the second transmission disc (8) is fixedly connected to a power output shaft (10). The first transmission disk (5) and the second transmission disk (8) are composed of the same structure.

2. The connecting spindle for an automotive air conditioning servo motor according to claim 1, characterized in that: The power input shaft (1) and power output shaft (10) are wrapped with bushings (9); the outer surface of the bushings (9) is symmetrically provided with multiple reinforcing ribs (3) in a ring shape.

3. The connecting spindle for an automotive air conditioning servo motor according to claim 2, characterized in that: The reinforcing rib (3) has an arc-shaped design. The front ends of the two reinforcing ribs (3) are fixedly connected to the transmission gear (2) and the transmission wheel (11) respectively, and the bottom end is fixedly connected to the end plate (4).

4. The connecting spindle for an automotive air conditioning servo motor according to claim 3, characterized in that: The transmission gear (2) is provided with gears, and the transmission gear (2) and transmission wheel (11) are fixedly connected to the bushing (9).

5. The connecting spindle for an automotive air conditioning servo motor according to claim 4, characterized in that: Multiple snap-fit ​​blocks (12) are fixedly installed on the outer side of the transmission gear (2) at the periphery of the power input shaft (1). The total number of the multiple snap-fit ​​blocks (12) is even, and each pair corresponds to the center of the power input shaft (1). A connecting thread (13) is provided on the inner side of the snap-fit ​​block (12), and a connecting hole (14) is provided through the center of the snap-fit ​​block (12). A snap-fit ​​groove (15) is provided between two sets of adjacent snap-fit ​​blocks (12).

6. The connecting spindle for an automotive air conditioning servo motor according to claim 5, characterized in that: The two end plates (4) are fixedly connected to the first conveyor plate (5) and the second transmission plate (8) respectively; the surfaces of the first conveyor plate (5) and the second transmission plate (8) are provided with annular openings corresponding to the locking bolts (7).

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