Universal coupling with spring jacking device

Abstract

The utility model belongs to the technical field of mechanical transmission, and particularly relates to a universal coupling with a spring jacking device, which comprises two cross shaft assemblies, the cross shaft assemblies are connected with flange plugs, sleeves are connected between the two cross shaft assemblies, the sleeves comprise a first sleeve and a second sleeve, the first sleeve is sleeved in the second sleeve in a sliding manner, and the second sleeve is sleeved in the second sleeve in a sliding manner. A limiting mechanism is arranged between the first sleeve and the second sleeve; a spline shaft and a spline sleeve are arranged in the sleeve and penetrate through the spline sleeve, the spline shaft and the spline sleeve are fixedly connected with the two cross shaft assemblies respectively, a baffle is detachably arranged in the spline sleeve, a spacer bush is further arranged in the sleeve in a sliding mode, the spacer bush is located between the spline sleeve and the sleeve, and springs are arranged between the spacer bush and the cross shaft assemblies. And the spring is sleeved outside the spline shaft and the spline housing. The springs on the two sides of the spacer bush abut against the two flange plugs, then the two ends of the coupler abut against the power piece and the driven piece, and telescopic separation of the driven piece is effectively avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of mechanical transmission, and in particular relates to a universal coupling with a spring tightening device. Background Art

[0002] During the use of the hot finishing mill, a brush roller is usually needed to clean the roller surface. The brush roller needs to move back and forth along the axial direction to work. Due to working conditions, the power part cannot be directly connected to the brush roller. Currently, a universal coupling is used to connect the power end and the brush roller. At the same time, in order to ensure the movement of the brush roller, a quick-connect connector is arranged between the universal coupling and the brush roller. The quick-connect connector is a movable telescopic part. Since the universal coupling itself also has a certain telescopic function, and the existing universal coupling cannot be tightened to both ends, there is a risk of the telescopic end of the quick-connect connector being detached during operation, which can easily cause equipment accidents. Summary of the invention

[0003] In order to solve the problem that when the brush roller of a hot finishing mill is working, the existing universal coupling cannot be tightened towards both ends, and thus there is a risk of separation of the telescopic end of the quick-insert connector connecting the brush roller, which easily causes equipment accidents, the utility model provides a universal coupling with a spring tightening device, by arranging a spacer sleeve outside the spline sleeve and tightening two flange plugs through springs on both sides of the spacer sleeve, thereby ensuring the tightening of the flange plug with the power output end and the driven part, effectively preventing the telescopic separation of the driven part, and at the same time arranging a sleeve outside the spring to limit, guide and protect the spring.

[0004] In order to achieve the above purpose, the technical solution of the utility model is:

[0005] A universal coupling with a spring tightening device comprises two cross shaft assemblies, the cross shaft assemblies are connected with a flange plug, a sleeve is connected between the two cross shaft assemblies, the sleeve comprises a first sleeve and a second sleeve, the first sleeve is slidably sleeved in the second sleeve, a limiting mechanism is arranged between the first sleeve and the second sleeve, and a flange joint connects the output end of the power part and the driven part.

[0006] A spline shaft and a spline sleeve are arranged in the sleeve, the spline shaft passes through the spline sleeve, and the spline shaft and the spline sleeve are fixedly connected to two cross shaft assemblies respectively, a baffle is detachably arranged in the spline sleeve, a spacer sleeve is also slidably arranged in the sleeve, the spacer sleeve is located between the spline sleeve and the sleeve, a spring is arranged between the spacer sleeve and the cross shaft assembly, the spring sleeve is arranged on the outside of the spline shaft and the spline sleeve, and the two flange plugs are respectively pressed against the power part and the driven part by the two springs.

[0007] Preferably, the spline sleeve includes a first spline sleeve and a second spline sleeve, a first annular groove is provided on the outer side of one end of the first spline sleeve, and a plurality of first strip protrusions are arranged in a circumferential array on the first annular groove, a second annular groove is provided on the inner side of one end of the second spline sleeve, and a plurality of second strip protrusions are arranged in a circumferential array on the second annular groove, and the first strip protrusions and the second strip protrusions are staggered. Through the staggered cooperation of the first strip protrusions and the second strip protrusions, it is ensured that the first spline sleeve and the second spline sleeve are conveniently connected or disconnected without affecting the transmission of the rotational torque, and a basis is provided for the installation of a detachable baffle.

[0008] Preferably, a baffle is arranged in the second annular groove, and the end of the first spline sleeve is connected to the baffle. The baffle limits the extension and retraction of the spline shaft and reduces the amount of lubricating oil retained in the spline sleeve, thereby avoiding waste on the one hand and preventing the universal coupling from being too heavy and affecting the rotational balance on the other hand.

[0009] Preferably, the limiting mechanism includes an outer raised plate and an inner raised plate. The outer raised plate is arranged on the outer side of one end of the first sleeve, and the inner raised plate is arranged on the inner side of one end of the second sleeve. The outer raised plate passes through the inner raised plate and is located in the second sleeve. The outer raised plate cooperates with the inner raised plate to limit the first sleeve and the second sleeve to prevent the two from detaching.

[0010] Preferably, an oil seal is provided between the first sleeve and the second sleeve, and the oil seal is located between the outer raised plate and the inner raised plate to ensure the sealing of the sleeve connection portion.

[0011] Through the above technical solution, the beneficial effects of the utility model are:

[0012] 1. The utility model sets a spacer sleeve on the spline sleeve and sets a spring between the spacer sleeve and the cross shaft assembly. During the operation of the universal coupling, the spring ensures that the two ends of the universal coupling are always pressed against the driving part and the driven part, so as to avoid separation when the driven part is a telescopic part.

[0013] 2. The utility model ensures the protection and guiding limit of the spring by means of a sleeve sleeved on the outside of the spring.

[0014] 3. The utility model provides a baffle in the spline sleeve to effectively reduce the amount of lubricating oil or grease retained in the spline sleeve, thereby avoiding waste on the one hand and preventing the spline sleeve from being too heavy due to excessive lubricating oil or grease being loaded into the spline sleeve, thereby affecting the rotation balance on the other hand.

[0015] 4. The utility model ensures the detachable installation of the baffle plate by arranging the spline sleeve into two sections, while ensuring the transmission of rotation of the two sections of the spline sleeve.

[0016] 5. The utility model provides a sleeve with two sections and installs it by sliding sleeve, which, on the one hand, facilitates the installation of the sleeve and ensures smooth extension and retraction of the universal coupling; on the other hand, an oil seal is provided between the two sections of the sleeve to ensure sealing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 For this utility model Figure 1 Enlarged view of point A in the middle.

[0019] Figure 3 For this utility model Figure 1 Enlarged view of point B in the middle.

[0020] Figure 4 It is a schematic diagram of the connection structure between the first spline sleeve and the second spline sleeve of the utility model.

[0021] The numbers in the accompanying drawings are: 1 is a cross shaft assembly, 2 is a first sleeve, 3 is a second sleeve, 4 is a spline shaft, 5 is a first spline sleeve, 6 is a second spline sleeve, 7 is a baffle, 8 is a spacer, 9 is a spring, 10 is a flange plug, 11 is a first annular groove, 12 is a first strip protrusion, 13 is a second annular groove, 14 is a second strip protrusion, 15 is an outer protrusion plate, 16 is an inner protrusion plate, and 17 is an oil seal. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments:

[0023] like Figure 1 to Figure 4 As shown, this embodiment provides a universal coupling with a spring tightening device, including two cross-shaft assemblies 1, the cross-shaft assembly 1 is connected with a flange plug 10, and the two flange joints 10 are respectively connected to the power member and the driven member through bolt flanges. The power member drives the driven member to rotate through a universal coupling with a spring tightening device of the utility model. A sleeve is connected between the two cross-shaft assemblies 1, and the sleeve includes a first sleeve 2 and a second sleeve 3. The first sleeve 2 is slidably sleeved in the second sleeve 3 to ensure a sliding and telescopic connection between the first sleeve 2 and the second sleeve 3.

[0024] A limiting mechanism is arranged between the first sleeve 2 and the second sleeve 3, and the limiting mechanism includes an outer raised plate 15 and an inner raised plate 16. The outer raised plate 15 is arranged on the outer side of one end of the first sleeve 2, and the inner raised plate 16 is arranged on the inner side of one end of the second sleeve 3. The outer raised plate 15 passes through the inner raised plate 16 and is located in the second sleeve 3. The sliding and extension of the first sleeve 2 and the second sleeve 3 are limited by the outer raised plate 15 and the inner raised plate 16 to prevent the first sleeve 2 and the second sleeve 3 from being separated. An oil seal 17 is arranged between the first sleeve 2 and the second sleeve 3, and the oil seal 17 is located between the outer raised plate 15 and the inner raised plate 16. The sealing between the first sleeve 2 and the second sleeve 3 is ensured by the oil seal 17.

[0025] A spline shaft 4 and a spline sleeve are provided in the sleeve, the spline shaft 4 is passed through the spline sleeve, and the spline shaft 4 and the spline sleeve are fixedly connected to two cross shaft assemblies 1 respectively, and the rotational power is transmitted through the spline sleeve and the spline shaft 4. A spacer sleeve 8 is also slidably provided in the sleeve, and the spacer sleeve 8 is located between the spline sleeve and the sleeve. A spring 9 is provided between the spacer sleeve 8 and the cross shaft assembly 1, and the spring 9 is sleeved on the outside of the spline shaft 4 and the spline sleeve. When the driven part is a telescopic part (quick-plug connector or other sliding telescopic sleeve parts, etc.), in the process of power transmission of a universal coupling with a spring tightening device of the utility model, since the universal coupling and the driven part are both telescopic, there is a risk of the driven part being detached. Therefore, the spring 9 is used to ensure that the two flange plugs 10 tighten the power part and the driven part, effectively reducing or even avoiding the sliding separation of the driven part.

[0026] A baffle 7 is detachably provided in the spline sleeve, and the spline sleeve includes a first spline sleeve 5 and a second spline sleeve 6. A first annular groove 11 is provided on the outer side of one end of the first spline sleeve 5, and a plurality of first strip protrusions 12 are arranged in a circumferential array on the first annular groove 11. A second annular groove 13 is provided on the inner side of one end of the second spline sleeve 6, and a plurality of second strip protrusions 14 are arranged in a circumferential array on the second annular groove 13. The first strip protrusion 12 and the second strip protrusion 14 are staggered. The staggered first strip protrusion 12 cooperates with the second strip protrusion 14 to ensure power transmission between the first spline sleeve 5 and the second spline sleeve 6, that is, the first spline sleeve 5 and the second spline sleeve 6 rotate synchronously, and at the same time, the first spline sleeve 5 and the second spline sleeve 6 are quickly and detachably connected.

[0027] A baffle plate 7 is disposed in the second annular groove 13 , and the end of the first spline sleeve 5 is abutted against the baffle plate 7 . The baffle plate 7 is quickly disassembled and assembled through the quick detachable connection between the first spline sleeve 5 and the second spline sleeve 6 .

[0028] A universal coupling with a spring tightening device in the utility model is used for the power input of the brush roller rotation of the hot finishing mill, and is used to connect the power member and the quick-connect connector (driven member). The quick-connect connector is connected to the brush roller to ensure the power transmission between the power member and the quick-connect connector. The axial movement of the brush roller is achieved by the expansion and contraction of the quick-connect connector, and the spring 9 ensures that the two flange plugs 10 tighten the power member and the driven member. Therefore, during the working process, the driven end of the universal coupling always presses against one end of the quick-connect connector, effectively avoiding the separation of the quick-connect connector.

[0029] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A universal coupling with a spring tensioning device, characterized in that: The invention comprises two cross shaft assemblies (1), the cross shaft assemblies (1) being connected to a flange plug (10), a sleeve being connected between the two cross shaft assemblies (1), the sleeve comprising a first sleeve (2) and a second sleeve (3), the first sleeve (2) being slidably sleeved in the second sleeve (3), and a limiting mechanism being arranged between the first sleeve (2) and the second sleeve (3); A spline shaft (4) and a spline sleeve are arranged in the sleeve, the spline shaft (4) passes through the spline sleeve, and the spline shaft (4) and the spline sleeve are respectively fixedly connected to two cross shaft assemblies (1), a baffle (7) is detachably arranged in the spline sleeve, a spacer sleeve (8) is also slidably arranged in the sleeve, the spacer sleeve (8) is located between the spline sleeve and the sleeve, a spring (9) is arranged between the spacer sleeve (8) and the cross shaft assembly (1), and the spring (9) is sleeved on the outside of the spline shaft (4) and the spline sleeve.

2. A universal coupling with a spring tensioning device according to claim 1, characterized in that: The spline sleeve comprises a first spline sleeve (5) and a second spline sleeve (6); a first annular groove (11) is provided on the outer side of one end of the first spline sleeve (5); a plurality of first strip protrusions (12) are arranged in a circumferential array on the first annular groove (11); a second annular groove (13) is provided on the inner side of one end of the second spline sleeve (6); a plurality of second strip protrusions (14) are arranged in a circumferential array on the second annular groove (13); the first strip protrusions (12) and the second strip protrusions (14) are arranged in a staggered manner.

3. A universal coupling with a spring tensioning device according to claim 2, characterized in that: A baffle plate (7) is arranged in the second annular groove (13), and the end of the first spline sleeve (5) is abutted against the baffle plate (7).

4. A universal coupling with a spring tensioning device according to claim 1, characterized in that: The limiting mechanism comprises an outer protruding plate (15) and an inner protruding plate (16); the outer protruding plate (15) is arranged on the outer side of one end of the first sleeve (2), and the inner protruding plate (16) is arranged on the inner side of one end of the second sleeve (3); the outer protruding plate (15) passes through the inner protruding plate (16) and is located inside the second sleeve (3).

5. A universal coupling with a spring tensioning device according to claim 4, characterized in that: An oil seal (17) is provided between the first sleeve (2) and the second sleeve (3), and the oil seal (17) is located between the outer raised plate (15) and the inner raised plate (16).

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