Driving structure of mechanical shaft seal

Abstract

The utility model relates to the technical field of shaft seal driving structures, and discloses a driving structure of a mechanical shaft seal, which comprises a fixed seat, a driving sealing mechanism is arranged in the fixed seat, a static sealing mechanism is arranged outside the driving sealing mechanism, the driving sealing mechanism comprises a driving component and a sealing component, and the static sealing mechanism is arranged outside the driving sealing mechanism. By means of the arranged driving mechanism, when the output end of the power assembly is connected, the output end of the power assembly is inserted into a groove corresponding to the connecting shaft, in the inserting process of the output end of the power assembly, the clamping block is pushed to move upwards, and when the clamping block moves to the corresponding position, the clamping block is driven to rotate. Therefore, the clamping block is inserted into a groove corresponding to the output end of the power assembly, connection between the connecting shaft and the output end of the power assembly is rapidly completed, the assembling efficiency of the power assembly and the driving mechanism is greatly improved, and the work complexity of workers is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft seal drive structures, in particular to a drive structure of a mechanical shaft seal. Background Art

[0002] The driving mechanism of the mechanical shaft seal exists to realize the driving and sealing functions of the mechanical shaft to ensure the normal operation of the mechanical equipment. Specifically, the functions of the driving mechanism of the mechanical shaft seal include the following aspects.

[0003] In the existing technology, the mechanical bearing drive structure usually has a tight fit between the seal and the rotating shaft, which plays a sealing role during the rotation process. When the power component drives the rotating shaft to rotate, the high-speed rotation of the rotating shaft is ensured. However, in actual use, when the power component is connected to the rotating shaft, the device needs to be fastened with bolts, which makes it inconvenient to quickly connect the rotating shaft and the power component. In addition, only a single static ring is provided on the outside, which easily causes the medium to leak from the connection when the shaft rotates at high speed. Therefore, it is necessary to improve the drive structure of a mechanical shaft seal. Utility Model Content

[0004] The purpose of the utility model is to provide a driving structure of a mechanical shaft seal to solve the problems raised in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical solutions: a driving structure of a mechanical shaft seal, comprising a fixed seat, a driving sealing mechanism is arranged inside the fixed seat, and a static sealing mechanism is arranged outside the driving sealing mechanism;

[0006] The driving sealing mechanism comprises a driving component and a sealing component, and the sealing component is arranged outside the driving component to facilitate high-speed rotation and maintain sealing during rotation.

[0007] Preferably, the driving assembly includes a rotating shaft, which is rotatably connected to the inside of the fixed seat, a No. 1 gear is fixedly connected to the outside of the rotating shaft, a No. 2 gear is meshed with the outside of the No. 1 gear, a connecting shaft is fixedly connected to the right side of the No. 2 gear, a clamping block is slidably connected to the inside of the connecting shaft, a pulling block is fixedly connected to the top of the clamping block, and a No. 1 spring is fixedly connected between the clamping block and the fixed shaft to facilitate high-speed rotation.

[0008] Preferably, holes are provided at positions corresponding to the connecting shaft and the fixing seat, and the connecting shaft is rotatably connected in the hole to facilitate driving the second gear to rotate.

[0009] Preferably, the sealing assembly includes a fixed sleeve, which is arranged on the outside of the rotating shaft, a connecting pin is arranged inside the fixed sleeve, a No. 2 spring is fixedly connected to the right side of the fixed sleeve, a clamping ring is fixedly connected to the right side of the No. 2 spring, and a No. 1 sealing ring is arranged on the right side of the clamping ring to facilitate sealing during rotation.

[0010] Preferably, holes are formed at positions corresponding to the fixing sleeve and the connecting pin, and the connecting pin is arranged in the hole to facilitate fixing the fixing sleeve and the rotating shaft.

[0011] Preferably, the static sealing mechanism includes a connecting sleeve, which is arranged outside the rotating shaft, a retaining ring is clamped on the right side of the connecting sleeve, a pressing sleeve is arranged on the right side of the retaining ring, and a No. 2 sealing ring is clamped on the right side of the pressing sleeve, so as to improve the sealing effect of the connection.

[0012] Preferably, grooves are provided at corresponding positions of the connecting sleeve and the retaining ring, and the retaining ring is snapped into the groove to ensure a tight connection between the retaining ring and the connecting sleeve.

[0013] Compared with the prior art, the utility model provides a driving structure of a mechanical shaft seal, which has the following beneficial effects:

[0014] 1. The driving structure of the mechanical shaft seal is provided with a driving mechanism. When the output end of the power component is connected, the output end of the power component is inserted into the groove corresponding to the connecting shaft. During the insertion process of the output end of the power component, the card block is pushed to move upward, and when it moves to the corresponding position, the card block is inserted into the groove corresponding to the output end of the power component, so that the connection between the connecting shaft and the output end of the power component is quickly completed, thereby greatly improving the assembly efficiency of the power component and the driving mechanism, and further reducing the tediousness of the work of the staff.

[0015] 2. The driving structure of the mechanical shaft seal greatly improves the sealing of the connection through the static sealing mechanism, the cooperation between the connecting sleeve and the No. 1 sealing ring, and the squeezing of the No. 2 sealing ring between the connecting sleeve and the retaining ring. In cooperation with the sealing component, the elastic force of the No. 1 spring drives the squeezing between the No. 1 sealing ring and the static sealing mechanism during the rotation, thereby performing double sealing on the connection to ensure that the medium will not leak out of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0017] Figure 1It is a structural schematic diagram of the appearance structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the appearance of the drive sealing mechanism of the utility model;

[0019] Figure 3 It is a structural schematic diagram of the deployment mechanism of the drive assembly of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the expansion mechanism of the sealing component of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the unfolded structure of the static sealing mechanism of the utility model.

[0022] In the figure: 1, fixed seat; 2, driving sealing mechanism; 3, static sealing mechanism; 21, driving assembly; 22, sealing assembly; 211, rotating shaft; 212, gear No. 1; 213, gear No. 2; 214, connecting shaft; 215, clamping block; 216, pulling block; 217, spring No. 1; 221, fixing sleeve; 222, connecting pin; 223, spring No. 2; 224, clamping ring; 225, sealing ring No. 1; 31, connecting sleeve; 32, retaining ring; 33, pressing sleeve; 34, sealing ring No. 2. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] Embodiment 1:

[0026] See also Figure 1-5 The utility model provides a technical solution: a driving structure of a mechanical shaft seal, comprising a fixed seat 1, a driving sealing mechanism 2 is arranged inside the fixed seat 1, and a static sealing mechanism 3 is arranged outside the driving sealing mechanism 2;

[0027] The driving sealing mechanism 2 includes a driving component 21 and a sealing component 22, and the sealing component 22 is arranged outside the driving component 21 to facilitate high-speed rotation and maintain sealing during rotation.

[0028] Furthermore, the driving assembly 21 includes a rotating shaft 211, which is rotatably connected to the inside of the fixed base 1, and a No. 1 gear 212 is fixedly connected to the outside of the rotating shaft 211, and a No. 2 gear 213 is meshed with the outside of the No. 1 gear 212, and a connecting shaft 214 is fixedly connected to the right side of the No. 2 gear 213, and a block 215 is slidably connected to the inside of the connecting shaft 214, and a pull block 216 is fixedly connected to the top of the block 215, and a No. 1 spring 217 is fixedly connected between the block 215 and the fixed shaft to facilitate high-speed rotation.

[0029] Furthermore, holes are formed at positions corresponding to the connection shaft 214 and the fixing seat 1 , and the connection shaft 214 is rotatably connected in the hole to drive the second gear 213 to rotate.

[0030] Furthermore, the sealing assembly 22 includes a fixed sleeve 221, which is arranged on the outside of the rotating shaft 211, and a connecting pin 222 is arranged inside the fixed sleeve 221. A No. 2 spring 223 is fixedly connected to the right side of the fixed sleeve 221, a retaining ring 224 is fixedly connected to the right side of the No. 2 spring 223, and a No. 1 sealing ring 225 is arranged on the right side of the retaining ring 224 to facilitate sealing during rotation.

[0031] Furthermore, holes are formed at corresponding positions of the fixing sleeve 221 and the connecting pin 222 , and the connecting pin 222 is disposed in the holes, so as to facilitate fixing the fixing sleeve 221 and the rotating shaft 211 .

[0032] Embodiment 2:

[0033] See also Figure 5 In combination with the first embodiment, it is further obtained that the static sealing mechanism 3 includes a connecting sleeve 31, the connecting sleeve 31 is arranged outside the rotating shaft 211, a retaining ring 32 is clamped on the right side of the connecting sleeve 31, a pressing sleeve 33 is arranged on the right side of the retaining ring 32, and a No. 2 sealing ring 34 is clamped on the right side of the pressing sleeve 33, so as to improve the sealing effect of the connection.

[0034] Furthermore, grooves are provided at corresponding positions of the connecting sleeve 31 and the retaining ring 32 , and the retaining ring 32 is snapped into the grooves, so as to ensure a tight connection between the retaining ring 32 and the connecting sleeve 31 .

[0035] In actual operation, when this device is used, first, through the set driving sealing mechanism 2, when connecting with the output end of the power component, by inserting the output end of the power component into the groove corresponding to the connecting shaft 214, during the insertion process of the output end of the power component, the card block 215 is pushed to move upward, and when it moves to the corresponding position, the card block 215 is inserted into the groove corresponding to the output end of the power component, thereby quickly completing the connection between the connecting shaft 214 and the output end of the power component, thereby greatly improving the assembly efficiency of the power component and the driving mechanism, and further reducing the tediousness of the work of the staff, and then through the set static sealing mechanism 3, through the cooperation of the connecting sleeve 31 and the No. 1 sealing ring 225, and then the No. 2 sealing ring 34 is squeezed between the connecting sleeve 31 and the retaining ring 32, thereby greatly improving the sealing of the connection, in cooperation with the sealing component 22, through the elastic force of the No. 1 spring 217, the No. 1 sealing ring 225 and the static sealing mechanism 3 are squeezed during the rotation process, thereby performing double sealing on the connection to ensure that the medium will not leak out of the device.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also 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 statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A driving structure of a mechanical shaft seal, comprising a fixing seat (1), characterized in that: A driving sealing mechanism (2) is arranged inside the fixing seat (1), and a static sealing mechanism (3) is arranged outside the driving sealing mechanism (2); The driving sealing mechanism (2) comprises a driving component (21) and a sealing component (22), and the sealing component (22) is arranged outside the driving component (21).

2. A driving structure for a mechanical shaft seal according to claim 1, characterized in that: The driving assembly (21) comprises a rotating shaft (211), wherein the rotating shaft (211) is rotatably connected to the interior of the fixing seat (1), a first gear (212) is fixedly connected to the exterior of the rotating shaft (211), a second gear (213) is meshed with the exterior of the first gear (212), a connecting shaft (214) is fixedly connected to the right side of the second gear (213), a clamping block (215) is slidably connected to the interior of the connecting shaft (214), a pulling block (216) is fixedly connected to the top of the clamping block (215), and a first spring (217) is fixedly connected between the clamping block (215) and the fixing shaft.

3. A driving structure of a mechanical shaft seal according to claim 2, characterized in that: The connecting shaft (214) and the fixing seat (1) are provided with holes at positions corresponding to each other, and the connecting shaft (214) is rotatably connected in the holes.

4. A driving structure for a mechanical shaft seal according to claim 2, characterized in that: The sealing assembly (22) comprises a fixed sleeve (221), the fixed sleeve (221) being arranged outside the rotating shaft (211), a connecting pin (222) being arranged inside the fixed sleeve (221), a No. 2 spring (223) being fixedly connected to the right side of the fixed sleeve (221), a clamping ring (224) being fixedly connected to the right side of the No. 2 spring (223), and a No. 1 sealing ring (225) being arranged on the right side of the clamping ring (224).

5. A driving structure for a mechanical shaft seal according to claim 4, characterized in that: The fixing sleeve (221) and the connecting pin (222) are provided with holes at positions corresponding to the positions, and the connecting pin (222) is arranged in the holes.

6. A driving structure for a mechanical shaft seal according to claim 2, characterized in that: The static sealing mechanism (3) comprises a connecting sleeve (31), the connecting sleeve (31) is arranged outside the rotating shaft (211), a retaining ring (32) is clamped on the right side of the connecting sleeve (31), a pressing sleeve (33) is arranged on the right side of the retaining ring (32), and a No. 2 sealing ring (34) is clamped on the right side of the pressing sleeve (33).

7. A driving structure for a mechanical shaft seal according to claim 6, characterized in that: The connecting sleeve (31) and the retaining ring (32) are provided with grooves at corresponding positions, and the retaining ring (32) is clamped in the grooves.

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