Pump shaft sealing element

Abstract

The utility model relates to the technical field of sealing elements, and discloses a pump shaft sealing element which comprises a sealer shell, a sealing element installation groove is formed in the sealer shell, a motor rotating shaft is movably connected in the sealing element installation groove in a sleeved mode, and a backing ring is movably connected outside the motor rotating shaft in a sleeved mode. The exterior of the backing ring is fixedly connected with a metal lantern ring, the exterior of the metal lantern ring is movably connected with a spring, the exterior of the sealing element mounting groove is movably connected with a buffer rubber pad, the exterior of the buffer rubber pad is movably connected with a static ring, the exterior of the static ring is movably connected with a moving ring, and the exterior of the moving ring is fixedly connected with a spring. According to the utility model, through the arrangement of the metal lantern ring, the spring can be fixed between the rubber pad and the metal lantern ring through the arrangement of the groove between the metal lantern ring and the rubber pad, the influence on the rotation of the motor rotating shaft when the spring deforms is prevented, and the use experience of an operator is effectively optimized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of sealing element, more particularly to a pump shaft sealing element. BACKGROUND

[0002] The pump shaft sealing element is a device for dynamic sealing in pump equipment, mainly used for preventing the medium in the pump body from leaking to the external environment, and commonly includes single-end mechanical seal, double-end mechanical seal and external mechanical seal, and is suitable for high-speed rotating pump equipment such as centrifugal pumps and plunger pumps, and has higher sealing performance and reliability.

[0003] The existing pump shaft sealing element will produce impact force when the spring installed on the pump shaft sealing element deforms during daily use, and will cause internal wear during long-term use, thereby reducing the service life of the pump shaft sealing element and affecting the user experience of the operator.

[0004] The existing pump shaft sealing element has an L-shaped grommet, and lacks a limiting measure for fixing the spring inside, so that the spring deforms during long-term use, causing the spring to collide with the internal sleeve bearing, thereby affecting the use efficiency of rotation. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a pump shaft sealing element to solve the problems in the above background art.

[0006] The utility model provides the following technical scheme: a pump shaft sealing element, including sealing ware shell, the inside of sealing ware shell is equipped with sealing element installation slot, the inside of sealing element installation slot is movably sleeved motor rotating shaft, the outside of motor rotating shaft is movably sleeved grommet, the outside of grommet is fixedly connected metal sleeve ring, the outside of metal sleeve ring is movably connected spring, the outside of sealing element installation slot is movably connected buffer rubber pad, the outside of buffer rubber pad is movably connected static ring, the outside of static ring is movably connected dynamic ring, the outside of dynamic ring is fixedly connected spring.

[0007] Further, the inside of the metal sleeve ring is movably connected to a metal ring, and the outside of the metal ring is fixedly connected to a spring.

[0008] Further, the outside of the motor rotating shaft is provided with a clamping block groove, the outside of the clamping block groove is movably sleeved with a fixed clamping block, and the outside of the fixed clamping block is movably connected to the grommet.

[0009] Further, the outside of the fixed clamping block is provided with a rotating shaft shell, the rotating shaft shell is fixedly connected to a semicircular fixed plate outside, and the inside of the semicircular fixed plate is movably sleeved with an octagonal bolt.

[0010] Further, the sealing device shell is externally provided with a butt joint groove, and the butt joint groove is internally movably sleeved with a rotating shaft shell.

[0011] Further, the bottom of the sealing device shell is fixedly connected with a support frame, and the bottom of the support frame is fixedly connected with a bottom plate.

[0012] Further, the outside of the support frame is fixedly connected with a motor, and the inside of the motor is movably sleeved with a motor rotating shaft.

[0013] Technical effects and advantages of the present application:

[0014] 1. The metal sleeve ring is arranged, which is beneficial to prevent the spring from deforming due to long-term use and colliding with the motor rotating shaft, thereby affecting the rotation of the motor rotating shaft and reducing the service life of the equipment. The spring can be fixed between the rubber pad and the metal sleeve ring through the connection of the metal sleeve ring and the rubber pad, which prevents the spring from deforming and affecting the rotation of the motor rotating shaft, and effectively optimizes the user experience of the operator.

[0015] 2. The buffering rubber pad is arranged, which is beneficial to preventing the pump shaft sealing element from being impacted by the buffering rubber pad, which can reduce the impact force generated by the spring installed outside the dynamic ring, effectively reducing the loss of the equipment and increasing the service life of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the present application.

[0017] Figure 2 It is a schematic diagram of the motor rotating shaft structure of the present application.

[0018] Figure 3 It is a schematic diagram of the buffering rubber pad structure of the present application.

[0019] Figure 4 It is a schematic diagram of the grommet structure of the present application.

[0020] The reference signs are: 1, sealing device shell; 2, sealing element installation groove; 3, motor rotating shaft; 4, grommet; 5, metal sleeve ring; 6, buffering rubber pad; 7, static ring; 8, dynamic ring; 9, spring; 101, metal ring; 102, clamping block groove; 103, fixed clamping block; 104, rotating shaft shell; 105, semicircular fixed plate; 106, octagonal bolt; 107, butt joint groove; 108, support frame; 109, bottom plate; 110, motor. DETAILED DESCRIPTION

[0021] The technical scheme in the utility model will be described clearly and completely below with reference to the drawings in the utility model, and additionally, the forms of each structure described in the following implementation manners are only examples, and the pump shaft sealing element involved in the utility model is not limited to each structure described in the following implementation manners, and all other implementation manners obtained by the ordinary skilled in the art without making creative efforts belong to the protection scope of the utility model.

[0022] With reference to Figures 1-4 The utility model provides a kind of pump shaft sealing element, including sealer shell 1, the inside of sealer shell 1 is equipped with sealing element installation groove 2, sealing element installation groove 2 is movably sleeved motor shaft 3, the outside of motor shaft 3 is movably sleeved gasket ring 4, gasket ring 4 is fixedly connected metal sleeve ring 5 outside, metal sleeve ring 5 is fixedly connected spring 9 outside, its spring 9 will be deformed due to long-term use, to collide with motor shaft 3, not only affect the rotation of motor shaft 3, also can reduce the service life of equipment, and by the connection of metal sleeve ring 5 and gasket ring 4, spring 9 can be fixed between gasket ring 4 and metal sleeve ring 5, prevent spring 9 from affecting the rotation of motor shaft 3 when deforming, effectively optimize the use experience of operator, the outside of sealing element installation groove 2 is movably connected buffer rubber pad 6, the outside of buffer rubber pad 6 is movably connected static ring 7, the outside of static ring 7 is movably connected dynamic ring 8, the outside of dynamic ring 8 is fixedly connected spring 9, and by installing buffer rubber pad 6 in sealing element installation groove 2, for preventing pump shaft sealing element from being impacted, can reduce the impact force generated by spring 9 installed outside dynamic ring 8 by the flexibility of rubber, effectively reduce the loss of equipment, increase the service life of equipment.

[0023] In a preferred embodiment, the inside of metal sleeve ring 5 is movably connected metal ring 101, and the outside of metal ring 101 is fixedly connected spring 9, which facilitates uniform distribution of the force generated by spring 9 in metal sleeve ring 5 by the metal ring 101 installed outside spring 9.

[0024] In a preferred embodiment, the outside of motor shaft 3 is provided with clamping block groove 102, the outside of clamping block groove 102 is movably sleeved fixed clamping block 103, and the outside of fixed clamping block 103 is movably connected gasket ring 4, which facilitates fixing gasket ring 4 outside motor shaft 3 for cooperative rotation by inserting fixed clamping block 103 into clamping block groove 102.

[0025] In a preferred implementation, the outer part of the fixed block 103 is provided with a rotating shaft shell 104, the rotating shaft shell 104 is fixedly connected with a semicircular fixed plate 105 outside, the inside of the semicircular fixed plate 105 is movably sleeved with an octagonal bolt 106, which is beneficial to fixing the rotating shaft shell 104 outside the sealing device shell 1 by inserting the octagonal bolt 106 into the semicircular fixed plate 105.

[0026] In a preferred implementation, the outer part of the fixed block 103 is provided with a rotating shaft shell 104, the rotating shaft shell 104 is fixedly connected with a semicircular fixed plate 105 outside, the inside of the semicircular fixed plate 105 is movably sleeved with an octagonal bolt 106, which is beneficial to fixing the rotating shaft shell 104 outside the sealing device shell 1 by inserting the octagonal bolt 106 into the semicircular fixed plate 105.

[0027] In a preferred implementation, the bottom of the sealing device shell 1 is fixedly connected with a support frame 108, and the bottom of the support frame 108 is fixedly connected with a bottom plate 109, which is beneficial to placing the equipment by the operator through the bottom plate 109 installed at the bottom of the support frame 108.

[0028] In a preferred implementation, the outer part of the fixed block 103 is provided with a rotating shaft shell 104, the rotating shaft shell 104 is fixedly connected with a semicircular fixed plate 105 outside, the inside of the semicircular fixed plate 105 is movably sleeved with an octagonal bolt 106, which is beneficial to fixing the rotating shaft shell 104 outside the sealing device shell 1 by inserting the octagonal bolt 106 into the semicircular fixed plate 105.

[0029] The working principle of the utility model is: a pump shaft sealing element, including sealing device shell 1, the inside of sealing device shell 1 is provided with sealing element installation slot 2, the inside of sealing element installation slot 2 is movably sleeved with motor shaft 3, the outside of motor shaft 3 is movably sleeved with pad ring 4, the outside of pad ring 4 is fixedly connected with metal sleeve ring 5, the outside of metal sleeve ring 5 is fixedly connected with spring 9, the spring 9 will be deformed due to long-term use, thereby colliding with motor shaft 3, not only affecting the rotation of motor shaft 3, but also reducing the service life of the equipment, and the connection of metal sleeve ring 5 and pad ring 4 can fix spring 9 between pad ring 4 and metal sleeve ring 5, prevent spring 9 from affecting the rotation of motor shaft 3 when deforming, effectively optimize the use experience of the operator, install buffer rubber pad 6 in sealing element installation slot 2, which is used for preventing the pump shaft sealing element from being impacted by the buffer rubber pad 6, which can reduce the impact force of the spring 9 installed outside the dynamic ring 8 connected by the static ring 7, effectively reduce the loss of equipment, increase the service life of the equipment.

[0030] The inner part of the metal sleeve ring 5 is movably connected with the metal ring 101, and the outer part of the metal ring 101 is fixedly connected with the spring 9, so that the force generated by the spring 9 can be evenly distributed in the metal sleeve ring 5 through the metal ring 101 installed outside the spring 9, the outer part of the motor rotating shaft 3 is provided with a clamping block groove 102, the outer part of the clamping block groove 102 is movably sleeved with a fixed clamping block 103, and the outer part of the fixed clamping block 103 is movably connected with the gasket ring 4, so that the gasket ring 4 can be fixed on the outer part of the motor rotating shaft 3 to rotate in cooperation through the fixed clamping block 103 inserted into the clamping block groove 102, and the outer part of the fixed clamping block 103 is provided with a rotating shaft shell 104, the outer part of the rotating shaft shell 104 is fixedly connected with a semicircular fixed plate 105, and the inner part of the semicircular fixed plate 105 is movably sleeved with an octagonal bolt 106, so that the rotating shaft shell 104 can be fixed on the outer part of the sealing device shell 1 by inserting the octagonal bolt 106 into the semicircular fixed plate 105.

[0031] The outer part of the sealing device shell 1 is provided with a butt joint groove 107, the inner part of the butt joint groove 107 is movably sleeved with the rotating shaft shell 104, so that the rotating shaft shell 104 can be nested by being sleeved with the protruding block in the inner part of the rotating shaft shell 104 through the butt joint groove 107 of the sealing device shell 1, and the tightness of the rotating shaft shell 104 can be improved, the bottom of the sealing device shell 1 is fixedly connected with a support frame 108, the bottom of the support frame 108 is fixedly connected with a bottom plate 109, so that the device can be conveniently placed by an operator through the bottom plate 109 installed at the bottom of the support frame 108, and the outer part of the support frame 108 is fixedly connected with a motor 110, and the inner part of the motor 110 is movably sleeved with the motor rotating shaft 3, so that the motor 110 provides rotating power for the motor rotating shaft 3.

[0032] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

[0033] Finally, it should be pointed out that: first, in the description of the present application, it should be pointed out that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood broadly, which can be mechanical connection or electrical connection, or the communication between two elements, or direct connection, "up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may change;

[0034] Secondly: the present application discloses only the structure involved in the embodiment of the present application in the drawings, other structures can refer to the usual design, and in the case of no conflict, the same embodiment and different embodiments of the present application can be combined with each other;

[0035] Finally: the above described is only the preferred embodiment of the utility model, and is not used for limiting the utility model, and any modification, equivalent replacement, improvement and the like made in the spirit and principle of the utility model should be contained in the protection scope of the utility model.

Claims

1. A pump shaft seal, comprising a seal housing (1), characterized in that: The seal housing (1) has a seal mounting groove (2) inside. The motor shaft (3) is movably sleeved inside the seal mounting groove (2). The gasket (4) is movably sleeved outside the motor shaft (3). The metal collar (5) is fixedly connected to the outside of the gasket (4). The spring (9) is movably connected to the outside of the metal collar (5). The buffer rubber pad (6) is movably connected to the outside of the seal mounting groove (2). The stationary ring (7) is movably connected to the outside of the buffer rubber pad (6). The moving ring (8) is movably connected to the outside of the stationary ring (7). The spring (9) is fixedly connected to the outside of the moving ring (8).

2. The pump shaft seal according to claim 1, characterized in that: The metal collar (5) is internally connected to a metal ring (101), and the metal ring (101) is externally fixedly connected to a spring (9).

3. A pump shaft seal according to claim 1, characterized in that: The motor shaft (3) has a locking groove (102) on its outside. A fixed locking block (103) is movably sleeved on the outside of the locking groove (102). A washer (4) is movably connected to the outside of the fixed locking block (103).

4. A pump shaft seal according to claim 3, characterized in that: The fixed block (103) is provided with a rotating shaft housing (104) on the outside. A semi-circular fixing plate (105) is fixedly connected to the outside of the rotating shaft housing (104). An octagonal bolt (106) is movably sleeved inside the semi-circular fixing plate (105).

5. A pump shaft seal according to claim 1, characterized in that: The outer surface of the sealer housing (1) is provided with a mating groove (107), and the inner surface of the mating groove (107) is movably fitted with the rotating shaft housing (104).

6. A pump shaft seal according to claim 1, characterized in that: The bottom of the sealer housing (1) is fixedly connected to a support frame (108), and the bottom of the support frame (108) is fixedly connected to a base plate (109).

7. A pump shaft seal according to claim 6, characterized in that: The motor (110) is fixedly connected to the outside of the support frame (108), and the motor shaft (3) is movably connected inside the motor (110).

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