Universal joint for ditcher

Abstract

The universal joint for the ditcher comprises a bell-shaped shell, a star-shaped sleeve, a retainer, a steel ball, a steel ball hole and a transmission shaft, and further comprises an oil inlet component used for injecting lubricating oil into the retainer; the flowing component is communicated with the oil inlet component and is used for transmitting the lubricating oil to the steel ball holes and the surface of the retainer; the oil storage component is communicated with the flowing component and is used for storing redundant lubricating oil; the oil cavity is formed in the top of the retainer; the oil inlet is formed in the top of the retainer and communicates with the oil cavity; two ends of the pipeline I are communicated with the oil cavity and the steel ball hole; the flow limiting plate is fixedly arranged in the pipeline I; two ends of the pipeline II are communicated with the pipeline I and the surface of the retainer; and the sealing piece is movably arranged in the second pipeline, and in daily production and life, lubricating oil is input into the retainer through the oil inlet component, and the input lubricating oil is transmitted into the steel ball hole and the surface of the retainer through the first pipeline and the second pipeline to lubricate rotation of the steel balls and the retainer.

Description

Technical Field

[0001] The utility model relates to a universal joint for a trenching machine. Background Art

[0002] A constant velocity universal joint is a device that connects two shafts with an angle between them or with a change in relative position, and enables the two shafts to transmit power at the same angular velocity. It can overcome the problem of unequal velocity in ordinary cross-axis universal joints. The constant velocity universal joints widely used at present are mainly ball-fork universal joints and ball-cage universal joints. The universal joint is composed of a bell-shaped housing, a star-shaped sleeve, a retaining frame, steel balls, a transmission shaft and other components. The reversal of the universal joint is achieved by the rotation of the steel balls in the bell-shaped housing. However, the service life of the steel balls and the retaining frame is easily shortened due to the large friction during the rotation process. At the same time, the disassembly process is relatively cumbersome when inspecting and repairing the universal joint. Summary of the invention

[0003] The utility model aims to solve one of the technical problems existing in the prior art.

[0004] The present application provides a universal joint for a trenching machine, comprising a bell housing, a star sleeve, a retaining frame, a steel ball, a steel ball hole and a transmission shaft, and also comprising:

[0005] An oil inlet component, which is used to inject lubricating oil into the cage;

[0006] A flow component, which is connected to the oil inlet component and is used to transmit the lubricating oil to the steel ball hole and the retainer surface;

[0007] An oil storage component, which is in communication with the flow component and is used to store excess lubricating oil;

[0008] Wherein, the bell housing and the transmission shaft are fixedly connected via a clamping assembly.

[0009] The card assembly includes:

[0010] A clamping component, which is used to achieve fixed clamping between the bell housing and the transmission shaft;

[0011] A protective component, which is used to prevent the bell housing and the transmission shaft from accidentally falling off;

[0012] Wherein, the protection component can be rotatably arranged on the clamping component.

[0013] The oil inlet components include:

[0014] An oil chamber, which is provided in the top of the retainer;

[0015] An oil inlet, which is arranged at the top of the retainer and communicates with the oil chamber;

[0016] A pipe cover, which is detachably arranged in the oil inlet through a fixing piece;

[0017] The oil chamber is communicated with the flow component.

[0018] The mobile parts include:

[0019] Pipe 1, which is arranged in the retainer, and has two ends connecting the oil chamber and the steel ball hole;

[0020] A flow limiting plate is fixedly arranged in one end of the pipeline close to the steel ball hole;

[0021] Pipe 2 is arranged in the retainer, and its two ends are connected with pipe 1 and the surface of the retainer;

[0022] The sealing element is movably arranged in the second pipeline.

[0023] Oil storage components include:

[0024] A mounting groove, which is provided on the inner wall of the steel ball hole;

[0025] The oil storage sponge is fixed in the installation groove.

[0026] The card-connecting parts include:

[0027] A mounting seat, which is fixedly connected to the bell-shaped housing and has a mounting frame fixedly arranged at the center;

[0028] A clamping frame is movably arranged in the mounting frame, and the transmission shaft and the mounting seat are movably clamped at both ends;

[0029] A reset member, two ends of which are fixedly connected to the inner wall of the mounting frame and the clamping frame;

[0030] The protection component can be rotatably arranged in the installation frame and is located on the side of the card frame.

[0031] Protective components include:

[0032] A protective plate, which is rotatably arranged in the installation frame through a rotating shaft and is located on the side of the card frame;

[0033] A fixing plate, which is fixed in the installation frame;

[0034] An installation shaft is fixed in the installation frame and is located on the side of the fixing plate;

[0035] The torsion spring is movably sleeved outside the mounting shaft, and two ends thereof movably abut against the protection plate and the fixing plate.

[0036] Seals include:

[0037] A movable tank is arranged in the second pipeline;

[0038] A sealing ring, which is movably arranged in the movable groove;

[0039] The two ends of the return spring are fixedly connected to the movable groove and the sealing ring.

[0040] The beneficial effects of the utility model are as follows:

[0041] 1. Lubricating oil is input into the cage through the oil inlet component, and the input lubricating oil is transmitted to the steel ball hole and the cage surface through pipeline 1 and pipeline 2, so as to lubricate the steel ball set in the steel ball hole and the rotation of the cage, reduce the friction force on them, and then protect them;

[0042] 2. Through the setting of the oil storage sponge, the excess lubricating oil in the steel ball hole is absorbed and stored, and the lubricating oil is released when the oil storage sponge is squeezed, which reduces the waste of lubricating oil and ensures the lubrication degree in the steel ball hole;

[0043] 3. The drive shaft and the bell housing can be installed and disassembled by pushing the card frame. At the same time, the card frame can be reset and supported by the cooperation of the reset piece, so that it is easy to disassemble when repairing the universal joint. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Figure 1 This is a top view of a cross-sectional view of a universal joint in an embodiment of the present application;

[0045] Figure 2 This is a top view of a cross-sectional view of a retainer in an embodiment of the present application;

[0046] Figure 3 It is a side cross-sectional view of the retainer in the embodiment of the present application;

[0047] Figure 4 Based Figure 3 A is an enlarged schematic diagram of the local structure at center A;

[0048] Figure 5 Based Figure 1 A is an enlarged schematic diagram of the local structure at center A;

[0049] Figure 6 Based Figure 5 A schematic diagram of the enlarged local structure in the middle.

[0050] Reference numerals

[0051] 1-bell housing, 2-star sleeve, 3-cage, 4-steel ball, 5-steel ball hole, 6-transmission shaft, 7-oil inlet component, 71-oil chamber, 72-oil inlet, 73-pipe cover, 8-flow component, 81-pipeline one, 82-limiting plate, 83-pipeline two, 84-seal, 841-movable groove, 842-seal ring, 843-reset spring, 9-oil storage component, 91-mounting groove, 92-oil storage sponge, 10-clamping assembly, 11-clamping component, 111-mounting seat, 112-mounting frame, 113-clamping frame, 114-reset component, 12-protective component, 121-protective plate, 122-fixed plate, 123-mounting shaft, 124-torsion spring. DETAILED DESCRIPTION

[0052] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0053] The terms "first", "second", etc. in the specification and claims of the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than those illustrated or described here, and the objects distinguished by "first", "second", etc. are generally of one type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "and / or" in the specification and claims represents at least one of the connected objects, and the character " / " generally indicates that the objects associated with each other are in an "or" relationship.

[0054] The server provided in the embodiment of the present application is described in detail below through specific embodiments and application scenarios in conjunction with the accompanying drawings.

[0055] Embodiment 1:

[0056] like Figures 1 to 4 As shown, an embodiment of the present application provides a universal joint for a trencher, comprising a bell housing 1, a star sleeve 2, a retaining frame 3, a steel ball 4, a steel ball hole 5 and a transmission shaft 6, and also comprising an oil inlet component 7, which is used to inject lubricating oil into the retaining frame 3; a flow component 8, which is connected to the oil inlet component 7, and is used to transmit the lubricating oil to the steel ball hole 5 and the surface of the retaining frame 3; an oil storage component 9, which is connected to the flow component 8, and is used to store excess lubricating oil; wherein the bell housing 1 and the transmission shaft 6 are fixedly connected by a clamping assembly 10.

[0057] Furthermore, the oil inlet component 7 includes an oil chamber 71, which is arranged in the top of the retaining frame 3; an oil inlet port 72, which is arranged at the top of the retaining frame 3 and is connected to the oil chamber 71; a pipe cover 73, which is detachably arranged in the oil inlet port 72 through a fixing member; wherein the oil chamber 71 is connected to the flow component 8.

[0058] Furthermore, the flow component 8 includes a pipe 81, which is arranged in the retaining frame 3, and its two ends connect the oil chamber 71 and the steel ball hole 5; a flow limiting plate 82, which is fixed in one end of the pipe 81 close to the steel ball hole 5; a pipe 2 83, which is arranged in the retaining frame 3, and its two ends connect the pipe 1 81 and the surface of the retaining frame 3; a sealing member 84, which is movably arranged in the pipe 2 83.

[0059] Furthermore, the oil storage component 9 includes a mounting groove 91 , which is disposed on the inner wall of the steel ball hole 5 ; and an oil storage sponge 92 , which is fixedly disposed in the mounting groove 91 .

[0060] Furthermore, the sealing member 84 includes a movable groove 841 disposed in the second pipe 83 ; a sealing ring 842 movably disposed in the movable groove 841 ; and a return spring 843 , both ends of which are fixedly connected to the movable groove 841 and the sealing ring 842 .

[0061] In this embodiment of the present application, due to the adoption of the above-mentioned structure, an annular oil chamber 71 is provided at the top of the retaining frame 3, and an oil inlet 72 is provided at the top of the retaining frame 3. The oil inlet 72 is connected with the annular oil chamber 71 to input the lubricating oil into the annular oil chamber 71. The inner wall of the oil inlet 72 is provided with a thread, and the outer wall of the pipe cover 73 is provided with an external thread. Through the threaded connection, the pipe cover 73 can be detachably fixed to the oil inlet 72 to seal the oil inlet 72.

[0062] A pipe 81 is arranged in the retaining frame 3, one end of which is connected to the annular oil chamber 71, and the other end is connected to the steel ball hole 5, and a limiting plate 82 is fixedly arranged inside. Through the connection between the pipe 81 and the steel ball hole 5, the lubricating oil in the annular oil chamber 71 is input into the steel ball hole 5, and flows evenly to the surface of the steel ball 4. The output lubricating oil is limited by the limiting plate 82 to prevent excessive outflow of oil and cause waste.

[0063] The inner wall of the steel ball hole 5 is provided with a mounting groove 91, and an oil storage sponge 92 is provided in the mounting groove 91. Through the setting of the oil storage sponge 92, the excess lubricating oil in the steel ball hole 5 is stored. When the oil storage sponge 92 is squeezed by the steel ball 4, the lubricating oil is released to lubricate the steel ball 4 and the inner wall of the steel ball hole 5.

[0064] Pipe 2 83 is arranged in the retaining frame 3, located on the side of pipe 1 81, one end of which is connected to pipe 1 81, and the other end of which is connected to the surface of the retaining frame 3. Through the setting of pipe 2 83, lubricating oil is input to the surface of the retaining frame 3 to lubricate the rotation of the retaining frame 3.

[0065] Pipeline 2 83 is divided into two pipelines, and the two pipelines are connected through a movable groove 841. A mounting plate is movably provided in the movable groove 841, and a sealing ring 842 is provided on the side of the mounting plate. The sealing ring 842 is tightly matched with the inner wall of the movable groove 841, and a spring is fixedly connected to the other side of the mounting plate, and the other end of the spring is fixedly connected to the inner wall of the movable groove 841. Through the above structure, the mounting plate and the sealing ring 842 seal pipeline 2 83. When the retaining frame 3 rotates, the mounting plate and the sealing ring 842 are affected by the centrifugal force, slide in the movable groove 841, and squeeze the reset spring 843. Through the movement of the sealing ring 842, the sealing contact of pipeline 2 83 is realized, so that the lubricating oil is output from pipeline 2 83 to the surface of the retaining frame 3, and the rotation of the retaining frame 3 is lubricated.

[0066] Embodiment 2:

[0067] like Figures 1 to 6 As shown, in this embodiment, in addition to the structural features of the aforementioned embodiments, the snap-on assembly 10 includes a snap-on component 11, which is used to achieve fixed snap-on connection between the bell housing 1 and the transmission shaft 6; and a protective component 12, which is used to prevent the bell housing 1 and the transmission shaft 6 from accidentally falling off; wherein the protective component 12 can be rotatably disposed on the snap-on component 11.

[0068] Furthermore, the clamping component 11 includes a mounting seat 111, which is fixed to the bell-shaped shell 1 and has a mounting frame 112 fixed at the center; a clamping frame 113, which is movably arranged in the mounting frame 112 and has two ends that movably clamp the transmission shaft 6 and the mounting seat 111; a reset member 114, whose two ends are fixed to the inner wall of the mounting frame 112 and the clamping frame 113; wherein the protective component 12 can be rotatably arranged in the mounting frame 112 and is located on the side of the clamping frame 113.

[0069] Furthermore, the protective component 12 includes a protective plate 121, which can be rotatably arranged in the installation frame 112 through a rotating shaft and is located on the side of the clamping frame 113; a fixed plate 122, which is fixed in the installation frame 112; a mounting shaft 123, which is fixed in the installation frame 112 and is located on the side of the fixed plate 122; a torsion spring 124, which is movably sleeved outside the mounting shaft 123, and its two ends movably abut the protective plate 121 and the fixed plate 122.

[0070] In this embodiment of the present application, due to the adoption of the above-mentioned structure, the mounting seat 111 is fixedly mounted on the outside of the bell-shaped housing 1, and a fixed groove is provided at the center, a mounting frame 112 is fixedly mounted in the fixed groove, the mounting frame 112 is U-shaped, and a card frame 113 is movably provided in the mounting frame 112; a card groove is provided at the bottom of the transmission shaft 6, a card groove is provided on the inner wall of the card groove, the top of the mounting frame 112 is movably mounted in the card groove, and the two ends of the card frame 113 are movably carded to the mounting seat 111 and the card groove; the side wall of the card frame 113 is connected to the mounting seat 111 and the card groove; A reset member 114 is provided between the frames 112, and the reset member 114 can be set as an electric telescopic rod, and the output end of the electric telescopic rod is fixedly connected to the side of the card frame 113; the card frame 113 is supported by the setting of the reset member 114; when the universal joint is disassembled, the electric telescopic rod is started, and the output end of the electric telescopic rod drives the card frame 113 to move toward the inside of the installation frame 112, and at the same time, the two ends of the card frame 113 fall off from the mounting seat 111 and the card slot, and at this time, the transmission shaft 6 can be separated from the bell housing 1, so that the convenient disassembly of the universal joint is realized.

[0071] A rotating shaft and a limit plate are fixedly arranged inside the installation frame 112, and a protective plate 121 is provided on the movable sleeve outside the rotating shaft, and the outer side of the protective plate 121 is located on the side of the limit plate, so that the protective plate 121 can only rotate counterclockwise; the protective plate 121 is located on the side of the card frame 113, and through the setting of the protective plate 121, the card frame 113 and the interior of the installation frame 112 are protected to prevent debris or other impurities from entering the installation frame 112 and the card frame 113; an installation shaft 123 and a fixed plate 122 are fixedly installed in the installation frame 112, and the installation shaft 123 and the fixed plate 122 are located on the side of the rotating shaft, and a torsion spring 124 is provided on the outer movable sleeve of the installation shaft 123, and the two ends of the torsion spring 124 movably abut against the anti-slip plate and the fixed plate 122, and through the setting of the torsion spring 124, the protective plate 121 is limited to prevent the protective plate 121 from moving.

[0072] It should be noted that, in this article, the terms "comprise", "include" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise one..." do not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in reverse order according to the functions involved, for example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0073] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A universal joint for a trenching machine, comprising a bell housing (1), a star sleeve (2), a retaining frame (3), a steel ball (4), a steel ball hole (5) and a transmission shaft (6), characterized in that: Also includes: An oil inlet component (7) used for injecting lubricating oil into the retaining frame (3); A flow component (8) which is in communication with the oil inlet component (7) and is used to transmit lubricating oil to the steel ball hole (5) and the surface of the retaining frame (3); An oil storage component (9), which is in communication with the flow component (8) and is used to store excess lubricating oil; Wherein, the bell-shaped housing (1) and the transmission shaft (6) are fixedly connected via a clamping assembly (10); The oil storage component (9) comprises: A mounting groove (91) provided on the inner wall of the steel ball hole (5); The oil storage sponge (92) is fixedly arranged in the mounting groove (91).

2. A universal joint for a trenching machine according to claim 1, characterized in that: The clamping assembly (10) comprises: A clamping component (11) used to achieve fixed clamping between the bell housing (1) and the transmission shaft (6); A protective component (12) for preventing the bell housing (1) and the transmission shaft (6) from accidentally falling off; The protection component (12) is rotatably arranged on the clamping component (11).

3. A universal joint for a trenching machine according to claim 1, characterized in that: The oil inlet component (7) comprises: An oil chamber (71) is provided in the top of the retaining frame (3); An oil inlet (72) is provided at the top of the retainer (3) and communicates with the oil chamber (71); A pipe cover (73) which is detachably arranged in the oil inlet (72) via a fixing member; The oil chamber (71) is in communication with the flow component (8).

4. A universal joint for a trenching machine according to claim 3, characterized in that: The flow component (8) comprises: Pipe 1 (81), which is arranged in the retaining frame (3), and has two ends communicating with the oil chamber (71) and the steel ball hole (5); A flow limiting plate (82) is fixedly mounted in one end of the pipe (81) near the steel ball hole (5); Pipe 2 (83) is disposed in the retaining frame (3), and its two ends are connected to pipe 1 (81) and the surface of the retaining frame (3); A sealing member (84) is movably disposed in the second pipe (83).

5. A universal joint for a trenching machine according to claim 2, characterized in that: The clamping component (11) comprises: A mounting seat (111) which is fixedly connected to the bell-shaped housing (1) and has a mounting frame (112) fixedly disposed at the center; A clamping frame (113) is arranged in the installation frame (112), and the transmission shaft (6) and the installation seat (111) are movably clamped at both ends; A reset member (114), two ends of which are fixedly connected to the inner wall of the installation frame (112) and the clamping frame (113); The protection component (12) is rotatably arranged in the installation frame (112) and is located on the side of the clamping frame (113).

6. A universal joint for a trenching machine according to claim 5, characterized in that: The protective component (12) comprises: A protection plate (121) is rotatably disposed in the installation frame (112) via a rotating shaft and is located on the side of the clamping frame (113); A fixing plate (122) fixedly mounted in the mounting frame (112); A mounting shaft (123) is fixedly mounted in the mounting frame (112) and is located on a side of the fixing plate (122); The torsion spring (124) is movably sleeved outside the installation shaft (123), and its two ends abut against the protection plate (121) and the fixing plate (122).

7. A universal joint for a trenching machine according to claim 4, characterized in that: The sealing member (84) comprises: A movable groove (841) is disposed in the second pipe (83); A sealing ring (842) movably disposed in the movable groove (841); The two ends of the return spring (843) are fixedly connected to the movable groove (841) and the sealing ring (842).

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