Oil pipe locking type hydraulic release bearing

Abstract

The utility model provides an oil pipe locking type hydraulic release bearing, and belongs to the technical field of machinery. An oil pipe locking type hydraulic release bearing comprises a pump body, the pump body is provided with a connecting part, and the connecting part is provided with a connecting hole and screw holes distributed around the connecting hole; the oil pipe is provided with an insertion part corresponding to the connecting hole, a fixing part is arranged on the insertion part, positioning holes are formed in the fixing part and correspond to the screw holes one to one, and an annular first step part is arranged on the insertion part; the sealing ring is arranged in the first step part so as to seal the space between the insertion part and the inner wall of the connecting hole; and the bolts correspond to the screw holes in number, penetrate through the positioning holes and are in threaded connection with the screw holes. The connecting structure has the advantages of being good in connecting effect, reducing movement and prolonging the service life of the sealing ring.

Description

Technical Field

[0001] The utility model belongs to the technical field of machinery, in particular to a hydraulic release bearing with a locked oil pipe. Background Art

[0002] During the use of a hydraulic release bearing, the oil pipes are divided into metal pipes and plastic pipes. Among them, the plastic pipes are usually connected in the form of quick connectors. However, it is difficult to completely lock at the connection of this connection structure. During the operation of the product, the oil pipe and the sealing ring will repeatedly bear pressure, resulting in a small amount of movement, which will affect the service life of the sealing ring. Summary of the Invention

[0003] The purpose of the utility model is to address the above problems existing in the prior art, and propose a hydraulic release bearing with a locked oil pipe, which has the characteristics of good connection effect, reduced movement, and improved service life of the sealing ring.

[0004] The purpose of the utility model can be achieved by the following technical solutions:

[0005] A hydraulic release bearing with a locked oil pipe, comprising:

[0006] A pump body, the pump body has a connection part, the connection part has a connection hole, and screw holes distributed around the connection hole;

[0007] An oil pipe, the oil pipe has an insertion part corresponding to the connection hole, and a fixing part is arranged on the insertion part, a positioning hole is opened on the fixing part, the positioning hole corresponds to the screw hole one by one, and a circular first step part is arranged on the insertion part;

[0008] A sealing ring, the sealing ring is arranged in the first step part to seal between the insertion part and the inner wall of the connection hole;

[0009] Bolts, the number of bolts corresponds to the number of screw holes, the bolts pass through the positioning holes and are threadedly connected with the screw holes.

[0010] In the above-mentioned hydraulic release bearing with a locked oil pipe, a second step part corresponding to the first step part is arranged at the bottom of the connection hole. When the insertion part is inserted into the connection hole, the first step part and the second step part cooperate to form a receiving cavity for the sealing ring, and the sealing ring can be in contact with two surfaces of the first step part and two surfaces of the second step part at the same time.

[0011] In the above-mentioned hydraulic release bearing with a locked oil pipe, the oil pipe is made of plastic material.

[0012] In the above-mentioned hydraulic release bearing with a locked oil pipe, a positioning ring is further included, the positioning ring is embedded in the positioning hole, and the outer ring of the positioning ring abuts against the inner wall of the positioning hole.

[0013] In the above-mentioned oil pipe locking type hydraulic separation shaft, two positioning holes are provided on the fixing part, and the two positioning holes are distributed on both sides of the oil pipe.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] In the present application, through the cooperation of the oil pipe insertion part and the pump body connection hole, and the positioning holes on the fixing part corresponding to the screw holes around the connection hole, and using bolts for threaded connection, it can effectively prevent the oil pipe from moving during operation. Compared with the traditional quick-insert joint connection method, it greatly improves the connection stability, reduces the failure risk caused by connection looseness, ensures the normal operation of the hydraulic system, and a sealing ring is specially provided in the annular first step part of the oil pipe insertion part to seal between the insertion part and the inner wall of the connection hole. This sealing structure is reasonably designed and can effectively prevent the leakage of hydraulic oil while the oil pipe is firmly locked. Description of the Drawings

[0016] Figure 1 is a partial sectional structure in the present application;

[0017] Figure 2 is a structural diagram of the oil pipe in the present application;

[0018] Figure 3 is a structural diagram after the separation of the pump body and the oil pipe in the present application;

[0019] In the figure,

[0020] 2. Pump body; 21. Connection part; 211. Connection hole; 2111. Second step part; 2112. Accommodation cavity; 212. Screw hole;

[0021] 3. Oil pipe; 31. Insertion part; 311. Fixing part; 3111. Positioning hole; 312. First step part;

[0022] 4. Sealing ring;

[0023] 5. Bolt;

[0024] 6. Positioning ring. Detailed Embodiment

[0025] The following further describes the present application in conjunction with the attached Figures 1 - 3 drawings and specific embodiments:

[0026] First of all, it should be noted here that in the description of this application, when terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and other orientation words appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings. It is only for the convenience of description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to this application; in addition, when terms such as "first", "second", "third" and other numerical quantifiers appear, they are only for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, in this application, unless otherwise clearly specified and limited, when terms such as "installation", "connection", "connection" appear, they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, an interference fit, a transition fit and other limiting connections, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium; therefore, for those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0027] As Figures 1 to 3 shown, a locking type hydraulic release bearing for an oil pipe 3 includes: a pump body 2, an oil pipe 3, a sealing ring 4, and a bolt 5. The pump body 2 has a connecting portion 21, the connecting portion 21 has a connecting hole 211, and screw holes 212 distributed around the connecting hole 211; the oil pipe 3 has an insertion portion 31 corresponding to the connecting hole 211, and a fixing portion 311 is provided on the insertion portion 31. A positioning hole 3111 is opened on the fixing portion 311, and the positioning hole 3111 corresponds to the screw hole 212 one by one. An annular first step portion 312 is provided on the insertion portion 31; the sealing ring 4 is arranged in the first step portion 312 to seal between the insertion portion 31 and the inner wall of the connecting hole 211; the number of the bolts 5 corresponds to the number of the screw holes 212, and the bolts 5 pass through the positioning holes 3111 and are threadedly connected with the screw holes 212.

[0028] In this application, through the cooperation between the insertion portion 31 of the oil pipe 3 and the connecting hole 211 of the pump body 2, and the correspondence between the positioning hole 3111 on the fixing portion 311 and the screw holes 212 around the connecting hole 211, and using the bolt 5 for threaded connection, it can effectively prevent the oil pipe 3 from moving during operation. Compared with the traditional quick-insert joint connection method, the connection stability is greatly improved, the failure risk caused by connection loosening is reduced, and the normal operation of the hydraulic system is guaranteed. A sealing ring 4 is specifically arranged in the annular first step portion 312 of the insertion portion 31 of the oil pipe 3 to seal between the insertion portion 31 and the inner wall of the connecting hole 211. This sealing structure is reasonably designed and can effectively prevent hydraulic oil leakage while the oil pipe is firmly locked.

[0029] Specifically, a second step portion 2111 corresponding to the first step portion 312 is provided at the bottom of the connection hole 211. When the insertion portion 31 is inserted into the connection hole 211, the first step portion 312 cooperates with the second step portion 2111 to form a receiving cavity 2112 for receiving the sealing ring 4. The sealing ring 4 can be in contact with two surfaces of the first step portion 312 and two surfaces of the second step portion 2111 simultaneously.

[0030] Since the first step portion 312 and the second step portion 2111 cooperate to form a receiving cavity 2112 for receiving the sealing ring 4, and the sealing ring 4 can be in contact with two surfaces of the first step portion 312 and two surfaces of the second step portion 2111 simultaneously, the sealing ring 4 is in a relatively stable spatial environment with a large sealing contact area after installation, greatly improving the reliability and effectiveness of sealing and ensuring the stable operation of the hydraulic system.

[0031] Specifically, the oil pipe 3 is made of plastic material.

[0032] Specifically, a positioning ring 6 is further included. The positioning ring 6 is embedded in the positioning hole 3111, and the outer ring of the positioning ring 6 abuts against the inner wall of the positioning hole 3111.

[0033] Considering that the oil pipe 3 is made of plastic material and is prone to deformation, the positioning ring 6 is embedded in the positioning hole 3111 and abuts against the inner wall of the positioning hole 3111, making the fixing of the bolt 5 in the positioning hole 3111 more stable and reducing the possibility of the bolt 5 loosening due to vibration or other external forces during operation.

[0034] Specifically, two positioning holes 3111 are provided on the fixing portion 311, and the two positioning holes 3111 are distributed on both sides of the oil pipe 3.

[0035] The two positioning holes 3111 are distributed on both sides of the oil pipe 3. When the bolt 5 passes through the positioning hole 3111 to connect with the pump body 2, a uniform tightening force can be applied to the fixing portion 311 of the oil pipe 3 from both sides. This bilateral tightening method can effectively prevent the oil pipe 3 from twisting or shifting unilaterally during operation, greatly improving the stability and reliability of the connection between the oil pipe 3 and the pump body 2.

[0036] It should be noted that the above embodiments are only used to illustrate the present application and do not limit the technical solutions described in the present application. Although this specification has described the present application in detail with reference to the above embodiments, those of ordinary skill in the art should understand that those skilled in the art can still modify the present application or make equivalent replacements. All technical solutions and their improvements that do not depart from the spirit and scope of the present application shall be covered within the scope of the claims of the present application.

Claims

1. An oil pipe locking hydraulic release bearing, characterized in that: include: A pump body (2), the pump body (2) having a connecting portion (21), the connecting portion (21) having a connecting hole (211) and screw holes (212) distributed around the connecting hole (211); An oil pipe (3), the oil pipe (3) having an insertion portion (31) corresponding to the connection hole (211), and a fixing portion (311) provided on the insertion portion (31), a positioning hole (3111) being provided on the fixing portion (311), the positioning hole (3111) corresponding to the screw hole (212) one by one, and an annular first step portion (312) being provided on the insertion portion (31); A sealing ring (4), the sealing ring (4) being arranged in the first step portion (312) to seal between the insertion portion (31) and the inner wall of the connecting hole (211); Bolts (5), the number of the bolts (5) corresponds to the number of the screw holes (212), and the bolts (5) pass through the positioning holes (3111) and are threadedly connected to the screw holes (212).

2. The oil pipe locking hydraulic release bearing according to claim 1, characterized in that: The bottom of the connecting hole (211) is provided with a second step portion (2111) corresponding to the first step portion (312); when the insertion portion (31) is inserted into the connecting hole (211), the first step portion (312) cooperates with the second step portion (2111) to form a receiving cavity (2112) for receiving the sealing ring (4); the sealing ring (4) can simultaneously contact the two surfaces of the first step portion (312) and the two surfaces of the second step portion (2111).

3. The oil pipe locking hydraulic release bearing according to claim 1, characterized in that: The oil pipe (3) is made of plastic material.

4. The oil pipe locking hydraulic release bearing according to claim 3, characterized in that: It also comprises a positioning ring (6), wherein the positioning ring (6) is embedded in the positioning hole (3111), and the outer ring of the positioning ring (6) abuts against the inner wall of the positioning hole (3111).

5. The oil pipe locking hydraulic release bearing according to claim 4, characterized in that: The fixing portion (311) is provided with two positioning holes (3111), and the two positioning holes (3111) are distributed on both sides of the oil pipe (3).

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