An elastic locking device for a torque converter cover wheel assembly

Abstract

The present invention specifically relates to an elastic locking device for a torque converter cover wheel assembly, which mainly solves the problem that the rework process is cumbersome and the cost increases when the existing torque converter is reworked due to size deviation. The elastic locking device for the torque converter cover wheel assembly includes an input shaft, a linkage disk, a cover wheel shell, a shaft sleeve and an elastic block; the linkage disk is sleeved on the input shaft and rotates simultaneously with the input shaft; the shaft sleeve is fixedly arranged on the cover wheel shell and sleeved on the input shaft; the elastic block is located between the linkage disk and the cover wheel shell, and is a C-shaped structure, including a bottom plate, a top plate and two side plates, the bottom plate and the top plate are connected by two side plates, the bottom plate is fixedly arranged on the cover wheel shell, and a threaded hole is arranged on its end surface, the top plate is arranged with a threaded hole and a through groove penetrating along the length direction of the top plate; the linkage disk and the elastic block are installed by a connecting piece, and the connecting piece is threadedly connected with the threaded holes on the bottom plate and the top plate.

Description

Technical Field

[0001] The invention relates to a torque converter, in particular to an elastic locking device of a torque converter cover wheel assembly. Background Art

[0002] In construction machinery, mechanical products are assembled from multiple parts. During the assembly process, the size or performance of the mechanical assembly is often unqualified because the machining size of a single part is out of tolerance or the cumulative error is too large to meet the size requirements of the final mechanical assembly. In the torque converter, the torque converter as a whole needs to be welded and sealed after assembly, so the problem of size out of tolerance is even more difficult to deal with. Unqualified size of the torque converter will lead to the repair of the body, and in severe cases, the cover wheel will be scrapped. After the torque converter size is out of tolerance, it needs to be repaired. The process of cutting and re-welding during repair is not only cumbersome, but also increases the manufacturing cost of the torque converter, ultimately reducing the market competitiveness of the product. Summary of the invention

[0003] The purpose of the present invention is to solve the problem that the repair process is cumbersome and the cost is increased after the existing torque converter size exceeds the tolerance, and to provide an elastic locking device for the torque converter cover wheel assembly. The device has the advantages of low cost, simple structure, low environmental requirements, strong size adjustment ability, good locking effect, etc.

[0004] The purpose of the present invention is achieved through the following technical solutions:

[0005] An elastic locking device for a torque converter cover wheel assembly comprises an input shaft, a linkage plate, a cover wheel shell, a shaft sleeve and an elastic block; the linkage plate is sleeved on the input shaft and rotates simultaneously with the input shaft; the shaft sleeve is fixedly arranged on the cover wheel shell and sleeved on the input shaft; the elastic block is located between the linkage plate and the cover wheel shell, and is a C-shaped structure, comprising a bottom plate, a top plate and two side plates, the bottom plate and the top plate are connected by two side plates, the bottom plate is fixedly arranged on the cover wheel shell, and a threaded hole is arranged on the end face of the bottom plate, and a threaded hole and a through groove penetrating along the length direction of the top plate are arranged on the top plate; the linkage plate and the elastic block are installed by a connecting piece, and the connecting piece is threadedly connected to the threaded holes on the bottom plate and the top plate.

[0006] Furthermore, there are multiple elastic blocks, and the multiple elastic blocks are evenly distributed on the edge of the wheel cover shell with the center of the input shaft as the center of the circle.

[0007] Furthermore, the input shaft is connected to the linkage disk via a spline, or the input shaft is connected to the linkage disk via an interference fit.

[0008] Furthermore, the bottom plate of the elastic block is welded and fixed on the wheel housing.

[0009] Furthermore, the side plate is an arc-shaped plate.

[0010] Furthermore, the input shaft is a stepped shaft, the linkage disc is sleeved on the large end of the input shaft, and the shaft sleeve is sleeved on the small end of the input shaft.

[0011] Furthermore, the connecting member is a screw.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. The elastic locking device of the torque converter cover wheel assembly provided by the present invention can deform the top plate of the elastic block by compressing it. The "C"-shaped elastic block can be locked in the event of rebound, and the height of the elastic block can be appropriately adjusted during the process, thereby solving the problem of dimensional deviation and avoiding the problem of scrapping and rework caused by dimensional deviation.

[0014] 2. The elastic locking device of the torque converter cover wheel assembly provided by the present invention not only ensures that the product has good torque, but also simplifies the processing and manufacturing method of the original connecting block, thereby reducing product costs, which has an important impact on subsequent related process improvements and product performance enhancements.

[0015] 3. The elastic locking device of the torque converter cover wheel assembly provided by the present invention is low in cost and simpler in structure than previous torque converters, which reduces the secondary milling and turning process when the dimensions of similar products are out of tolerance, and has the characteristics of good connection and locking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a cross-sectional view of the elastic locking device of the torque converter cover wheel assembly of the present invention;

[0017] Figure 2 The present invention is a structural diagram of the elastic block in the elastic locking device of the torque converter cover wheel assembly.

[0018] Figure numerals: 1-input shaft, 2-shaft sleeve, 3-wheel housing, 4-elastic block, 5-connecting piece, 6-linkage plate, 41-bottom plate, 42-top plate, 43-side plate, 44-threaded hole, 45-through groove. DETAILED DESCRIPTION

[0019] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0020] like Figure 1 and Figure 2As shown, the elastic locking device of the torque converter cover wheel assembly provided by the present invention comprises an input shaft 1, a linkage plate 6, a cover wheel shell 3, a sleeve 2 and an elastic block 4; the input shaft 1 can be specifically set as a stepped shaft, including a large end and a small end, and the diameter of the large end is larger than the diameter of the small end. The linkage plate 6 is sleeved on the large end of the input shaft 1, and is connected to the input shaft 1 through a spline or interference fit. When the input shaft 1 rotates, the linkage plate 6 and the input shaft 1 rotate simultaneously. The sleeve 2 is fixedly arranged in the middle of the cover wheel shell 3, and can be specifically fixedly connected to the cover wheel shell 3 by welding or other methods. The sleeve 2 is sleeved on the small end of the input shaft 1; the sleeve 2 does not rotate with the input shaft 1, and its function is to facilitate the positioning of the input shaft 1. At this time, the center lines of the linkage plate 6, the input shaft 1, the sleeve 2 and the cover wheel shell 3 coincide, that is, the linkage plate 6, the input shaft 1, the sleeve 2 and the cover wheel shell 3 are coaxially arranged.

[0021] The elastic block 4 is located between the linkage disk 6 and the cover wheel shell 3, and is specifically a C-shaped structure, which includes a bottom plate 41, a top plate 42 and two side plates 43. The bottom plate 41 and the top plate 42 are arranged in parallel and connected by two side plates 43. The side plates 43 can be arc plates, or specifically flat plates. The use of arc plates can make the elastic performance of the elastic block 4 better. During installation, the bottom plate 41 is fixedly arranged on the cover wheel shell 3, and can be specifically connected by welding or bolts. A through groove 45 is provided along the length direction of the top plate 42, so that the middle of the top plate is an aligned and unconnected suspended plane at both ends, so that the elastic block 4 has compressible elastic performance. Coaxial threaded holes 44 are provided on the bottom plate 41 and the top plate 42. The linkage disk 6 and the elastic block 4 are installed through a connecting member 5. Specifically, the connecting member 5 is threadedly connected to the threaded holes 44 on the bottom plate 41 and the top plate 42, and the purpose of locking is achieved through threaded connection. The connecting member 5 can be a screw or a bolt, or other connecting members.

[0022] Specifically, there can be multiple elastic blocks 4, which are evenly distributed on the edge of the cover wheel shell 3 with the center of the input shaft 1 as the center of the circle, that is, the elastic blocks 4 are welded to the edge of the cover wheel shell 3 in equal numbers around the central axis of the cover wheel assembly. The elastic locking device mainly screws a screw into the middle through hole of the elastic block 4 to compress the top plate 42 of the elastic block 4 to deform, and the "C"-shaped elastic block will be locked in the event of rebound, and the height of the elastic block 4 can be appropriately adjusted in this process, thereby solving the problem of out-of-tolerance.

[0023] When assembling the elastic locking device of the torque converter cover wheel assembly of the present invention, the input shaft 1 is connected to the linkage plate 6 through a spline, and the edge of the linkage plate 6 is provided with a through hole, which is connected to the upper and lower layers of the elastic block 4 through screws; the elastic block 4 is fixed to the outer edge of the cover wheel shell 3 by welding; the outer end of the center of the cover wheel shell 3 is welded and connected with the shaft sleeve 2; the input shaft 1 is installed in the through hole of the shaft sleeve 2, and the elastic block 4 is provided with a hollow internal threaded hole 44 at its central position. When connected with the screw, the depth of the threaded hole 44 that is continuously screwed in can cause a certain amount of deformation and rebound in the "C" shape, so that the internal thread at the center of the "C" shape is locked with the screw, and finally the purpose of locking is achieved. The "C"-shaped structure of the elastic block can adjust the height of the elastic block according to the degree of elastic strain, which can effectively eliminate the "over-tolerance" phenomenon.

[0024] Compared with the traditional welding fixed connection setting, the device of the present invention can avoid the original secondary milling process, reduce the product manufacturing cost and improve the economic benefit. Secondary milling is the solution to the existing connection block out of tolerance. The out-of-tolerance size is milled by a milling machine. The milling operation is complicated, the process is one-time, and the later adjustment is difficult. Improper milling operation may cause the entire torque converter to be scrapped.

[0025] The device of the present invention is low-cost and has a simpler structure than the previous torque converter structure. It reduces the secondary milling and turning process of similar products and has the characteristics of good connection and locking effect. The core of the device is to compress the elastic block top plate 42 to deform it, and the "C"-shaped elastic block will be locked in the case of rebound, and the height of the elastic block will be appropriately adjusted during the process, thereby solving the problem of out-of-tolerance. While ensuring the product's better torque requirements, the device also simplifies the processing and manufacturing method of the original connection block, thereby reducing product costs, which has an important impact on subsequent related process improvements and product performance improvements.

Claims

1. An elastic locking device for a torque converter cover wheel assembly, characterized in that: It comprises an input shaft (1), a linkage plate (6), a wheel housing (3), a shaft sleeve (2) and an elastic block (4); The linkage disk (6) is sleeved on the input shaft (1) and rotates simultaneously with the input shaft (1); The shaft sleeve (2) is fixedly arranged on the wheel housing (3) and sleeved on the input shaft (1); The elastic block (4) is located between the linkage disk (6) and the wheel cover shell (3), and is a C-shaped structure, comprising a bottom plate (41), a top plate (42) and two side plates (43). The bottom plate (41) and the top plate (42) are connected via the two side plates (43). The bottom plate (41) is fixedly arranged on the wheel cover shell (3), and a threaded hole (44) is arranged on its end face. The top plate (42) is provided with a threaded hole (44) and a through groove (45) extending along the length direction of the top plate. The linkage disk (6) and the elastic block (4) are installed via a connecting piece (5), and the connecting piece (5) is threadedly connected to the threaded holes (44) on the bottom plate (41) and the top plate (42).

2. The elastic locking device of the torque converter cover wheel assembly according to claim 1, characterized in that: There are a plurality of elastic blocks (4), and the plurality of elastic blocks (4) are evenly distributed on the edge of the wheel cover shell (3) with the center of the input shaft (1) as the center of the circle.

3. The elastic locking device of the torque converter cover wheel assembly according to claim 2, characterized in that: The input shaft (1) is connected to the linkage disk (6) via a spline.

4. The elastic locking device of the torque converter cover wheel assembly according to claim 2, characterized in that: The input shaft (1) is connected to the linkage disk (6) by interference fit.

5. The elastic locking device of the torque converter cover wheel assembly according to any one of claims 1 to 4, characterized in that: The bottom plate of the elastic block (4) is welded and fixedly arranged on the wheel housing (3).

6. The elastic locking device of the torque converter cover wheel assembly according to claim 5, characterized in that: The side plate (43) is an arc-shaped plate.

7. The elastic locking device of the torque converter cover wheel assembly according to claim 6, characterized in that: The input shaft (1) is a stepped shaft, the linkage disc (6) is sleeved on the large end of the input shaft (1), and the shaft sleeve (2) is sleeved on the small end of the input shaft (1).

8. The elastic locking device of the torque converter cover wheel assembly according to claim 7, characterized in that: The connecting piece (5) is a screw.

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