阅读说明：本技术 一种卧式渣浆泵 (Horizontal slurry pump ) 是由 陈利平 赵永亮 蔺延德 李辉楚 王姝 于 2019-09-27 设计创作，主要内容包括：本发明提供了一种卧式渣浆泵,属于渣浆泵技术领域,包括托架、水平连接于托架上轴承组件、安装于轴承组件上的传动轴、与托架固定连接的泵体、与泵体连接的泵盖,以及位于泵体与泵盖之间且与传动轴连接的叶轮,还包括：位于叶轮与泵盖之间的前护板、位于叶轮与泵体之间的后护板及护套；前护板上设有穿过泵盖的第一可调连接组件；后护板上设有穿过泵体的第二可调连接组件；护套成蜗壳状与泵体的内壁、泵盖的内壁固定连接,护套的两个端面分别与前护板的外围面、后护板的外围面抵接；其中,前护板和后护板具有配合夹紧叶轮的夹紧状态,还具有分别与叶轮的两侧保持间隙的复位状态；叶轮与传动轴螺纹连接。本发明提供的一种卧式渣浆泵方便更换泵头。(The invention provides a horizontal slurry pump, which belongs to the technical field of slurry pumps and comprises a bracket, a bearing assembly horizontally connected to the bracket, a transmission shaft arranged on the bearing assembly, a pump body fixedly connected with the bracket, a pump cover connected with the pump body, and an impeller which is positioned between the pump body and the pump cover and connected with the transmission shaft, and further comprises: the front guard plate is positioned between the impeller and the pump cover, and the rear guard plate and the sheath are positioned between the impeller and the pump body; the front guard plate is provided with a first adjustable connecting component which penetrates through the pump cover; the rear guard plate is provided with a second adjustable connecting component which penetrates through the pump body; the protective sleeve is in a volute shape and is fixedly connected with the inner wall of the pump body and the inner wall of the pump cover, and two end faces of the protective sleeve are respectively abutted against the peripheral surface of the front protective plate and the peripheral surface of the rear protective plate; the front guard plate and the rear guard plate are in a clamping state of matching with and clamping the impeller, and are in a reset state of keeping gaps with two sides of the impeller respectively; the impeller is in threaded connection with the transmission shaft. The horizontal slurry pump provided by the invention has the advantage that the pump head is convenient to replace.)

1. The utility model provides a horizontal sediment stuff pump, include bracket, horizontally connect in bearing assembly on the bracket, install in transmission shaft on the bearing assembly, with bracket fixed connection's the pump body, with pump cover of pump body coupling, and be located the pump body with between the pump cover and with the impeller of transmission shaft coupling, its characterized in that still includes:

the front guard plate is positioned between the impeller and the pump cover, and a first adjustable connecting component penetrating through the pump cover is arranged on the front guard plate;

the rear protection plate is positioned between the impeller and the pump body, and a second adjustable connecting component penetrating through the pump body is arranged on the rear protection plate;

the protective sleeve is fixedly connected with the inner wall of the pump body and the inner wall of the pump cover in a volute shape, and two end faces of the protective sleeve are respectively abutted against the peripheral surface of the front protective plate and the peripheral surface of the rear protective plate;

the front guard plate and the rear guard plate are in a clamping state of cooperatively clamping the impeller by adjusting the first adjustable connecting assembly and the second adjustable connecting assembly, and are also in a reset state of being separated from two sides of the impeller respectively by readjusting the first adjustable connecting assembly and the second adjustable connecting assembly;

the impeller is in threaded connection with the transmission shaft.

2. The horizontal slurry pump of claim 1, wherein: the first adjustable connecting assembly comprises a first pull bolt and a first thrust bolt, one end of the first pull bolt is fixedly connected with the front guard plate, the other end of the first pull bolt penetrates through the pump cover and is in threaded connection with a first adjusting nut; one end of the first thrust bolt is abutted against the front guard plate, and the other end of the first thrust bolt penetrates through the pump cover and is in threaded connection with the pump cover;

the second adjustable connecting assembly comprises a second tension bolt and a second thrust bolt, one end of the second tension bolt is fixedly connected with the rear guard plate, the other end of the second tension bolt penetrates through the pump body, and a second adjusting nut is in threaded connection with the pump body; one end of the second thrust bolt is abutted to the rear protection plate, and the other end of the second thrust bolt penetrates through the pump body and is in threaded connection with the pump body.

3. A horizontal slurry pump as claimed in claim 2, wherein: the first pull bolts and the first thrust bolts are circumferentially arranged at intervals by taking the rotation axis of the impeller as a center, and the first pull bolts and the first thrust bolts are arranged at intervals in a crossed manner;

the second tension bolt and the second thrust bolt are circumferentially arranged at intervals by taking the rotation axis of the impeller as a center, and are arranged at intervals in a crossed manner.

4. A horizontal slurry pump according to any one of claims 1 to 3, wherein: the pump cover is characterized in that a containing groove which is sunken towards the direction of the bracket from the end face is formed in the inner side wall of the pump body, the containing groove is connected with the end face of the pump cover, and a boss which is embedded in the containing groove is arranged on the outer wall of the sheath.

5. The horizontal slurry pump of claim 4, wherein: the sheath comprises a front sheath and a rear sheath which are symmetrical in shape; the front sheath and the rear sheath are mutually attached at the corresponding end surfaces, the other end surface of the front sheath is abutted to the front guard plate, and the other end surface of the rear sheath is abutted to the rear guard plate.

6. The horizontal slurry pump of claim 5, wherein: a first clamping groove which is sunken towards the direction of the bracket is arranged on the radial groove wall of the accommodating groove; the pump cover is provided with a second clamping groove which is communicated with the accommodating groove and is axially aligned with the first clamping groove;

the boss comprises a first boss located on the rear sheath and a second boss located on the front sheath; first boss is equipped with along the outside convex first card limit of axial, first card limit with first draw-in groove joint, the second boss is equipped with along the outside convex second card limit of axial, the second card limit with second draw-in groove joint.

7. The horizontal slurry pump of claim 5, wherein: and a plurality of annular grooves are arranged on the joint surface of the rear sheath and the front sheath.

8. The horizontal slurry pump of claim 5, wherein: a first connecting piece is embedded on the side wall of the front sheath, penetrates through the pump cover and is in threaded connection with a first fastening nut; and a second connecting piece is embedded in the side wall of the rear sheath, penetrates through the pump body and is in threaded connection with a second fastening nut.

9. A horizontal slurry pump according to any one of claims 1 to 3 and 5 to 8, wherein: the peripheral surface of the front guard plate and the peripheral surface of the rear guard plate are respectively provided with a corrugated structure.

10. A horizontal slurry pump according to any one of claims 1 to 3 and 5 to 8, wherein: the front guard plate is close to the plate surface edge of the pump cover, and the rear guard plate is close to the plate surface edge of the pump body.

Technical Field

The invention belongs to the technical field of slurry pumps, and particularly relates to a horizontal slurry pump.

Background

The slurry pump achieves the purpose of conveying solid-liquid mixed media by the centrifugal force generated by the rotation of the impeller. The main structure of the slurry pump comprises a transmission part and a pump head, wherein the pump head is a core component of the slurry pump, and the pump head is generally composed of a pump body, a pump cover, an impeller and a lining part.

Because the working medium of the slurry pump is a solid-liquid mixture, the internal parts of the pump head are greatly abraded in the high-speed rotation process, in order to ensure the working efficiency of the slurry pump, the pump head needs to be replaced by a new one after being abraded to a certain degree, and in the process of realizing the invention, the inventor finds that at least the following problems exist in the prior art: because the transmission part is connected with the impeller positioned in the pump head, the pump cover needs to be disassembled firstly when the pump head is replaced, then the pump body can be disassembled after the impeller is disassembled, and the disassembly work of the pump head is completed.

Disclosure of Invention

The invention aims to provide a horizontal slurry pump, and aims to solve the problems of high difficulty in replacing a pump head and long consumed time of the slurry pump in the prior art.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a horizontal sediment stuff pump, including bracket, horizontally connect in bracket upper bearing subassembly, install transmission shaft on the bearing subassembly, with the pump cover of bracket fixed connection's the pump body, with pump body coupling to and be located the impeller that just is connected with the transmission shaft between the pump body and the pump cover, still include: the front guard plate is positioned between the impeller and the pump cover, and the rear guard plate and the sheath are positioned between the impeller and the pump body; the front guard plate is provided with a first adjustable connecting component which penetrates through the pump cover; the rear guard plate is provided with a second adjustable connecting component which penetrates through the pump body; the protective sleeve is in a volute shape and is fixedly connected with the inner wall of the pump body and the inner wall of the pump cover, and two end faces of the protective sleeve are respectively abutted against the peripheral surface of the front protective plate and the peripheral surface of the rear protective plate; the front guard plate and the rear guard plate are in a clamping state of matching and clamping the impeller due to adjustment of the first adjustable connecting assembly and the second adjustable connecting assembly, and are in a reset state of being separated from two sides of the impeller respectively due to adjustment of the first adjustable connecting assembly and the second adjustable connecting assembly again; the impeller is in threaded connection with the transmission shaft.

As another embodiment of the application, the first adjustable connecting assembly comprises a first tension bolt and a first thrust bolt, one end of the first tension bolt is fixedly connected with the front guard plate, and the other end of the first tension bolt penetrates through the pump cover and is in threaded connection with a first adjusting nut; one end of the first thrust bolt is abutted against the front guard plate, and the other end of the first thrust bolt penetrates through the pump cover and is in threaded connection with the pump cover;

the second adjustable connecting assembly comprises a second pull bolt and a second thrust bolt, one end of the second pull bolt is fixedly connected with the rear guard plate, the other end of the second pull bolt penetrates through the pump body, and a second adjusting nut is in threaded connection with the pump body; one end of the second thrust bolt is abutted to the rear guard plate, and the other end of the second thrust bolt penetrates through the pump body and is in threaded connection with the pump body.

As another embodiment of the present application, a plurality of first tension bolts and a plurality of first thrust bolts are circumferentially arranged at intervals with the rotation axis of the impeller as the center, and the first tension bolts and the first thrust bolts are arranged at intervals in a crossing manner;

the second pull bolt and the second thrust bolt are arranged in a plurality of circumferential intervals by taking the rotation axis of the impeller as a center, and the second pull bolt and the second thrust bolt are arranged in a crossed and spaced mode.

As another embodiment of this application, be equipped with on the inside wall of pump body by its terminal surface to the sunken storage tank of bracket direction, the terminal surface of storage tank and pump cover meets, and the outer wall of sheath is equipped with and is used for inlaying the boss of adorning in the storage tank.

As another embodiment of the present application, the sheath comprises a front sheath and a rear sheath which are symmetrical in shape; the corresponding terminal surface of preceding sheath and back sheath is laminated each other, and another terminal surface and the preceding backplate butt of preceding sheath, another terminal surface and the backplate butt of back sheath.

As another embodiment of the present application, a first slot is formed on a radial slot wall of the accommodating slot and is recessed toward the bracket; the pump cover is provided with a second clamping groove which is communicated with the accommodating groove and is axially aligned with the first clamping groove; the boss comprises a first boss positioned on the rear sheath and a second boss positioned on the front sheath; the first boss is provided with a first clamping edge protruding outwards along the axial direction, the first clamping edge is connected with the first clamping groove in a clamped mode, the second boss is provided with a second clamping edge protruding outwards along the axial direction, and the second clamping edge is connected with the second clamping groove in a clamped mode.

As another embodiment of the present application, a plurality of ring grooves are formed on the joint surface of the rear sheath and the front sheath.

As another embodiment of the application, a first connecting piece is embedded on the side wall of the front sheath, penetrates through the pump cover and is in threaded connection with a first fastening nut; and a second connecting piece is embedded in the side wall of the rear sheath, penetrates through the pump body and is in threaded connection with a second fastening nut.

As another embodiment of the application, the peripheral surface of the front protective plate and the peripheral surface of the rear protective plate are respectively provided with a corrugated structure.

As another embodiment of this application, the face border that the apron is close to the pump cover of preceding backplate, the face border that the backplate is close to the pump body all are equipped with and compress tightly the flange.

The horizontal slurry pump provided by the invention has the beneficial effects that: compared with the prior art, the impeller is in threaded connection with the transmission shaft, when a pump head of the slurry pump is seriously worn and needs to be replaced, the front guard plate moves towards the impeller direction until the front guard plate is abutted against one side surface of the impeller by adjusting the first adjustable connecting assembly, the rear guard plate moves towards the impeller direction until the rear guard plate is abutted against the other end surface of the impeller, the front guard plate and the rear guard plate are in a clamping state of matching and clamping the impeller, then the connection between the pump body and the transmission bracket is disassembled, the transmission shaft is rotated in a reverse direction, and the clamped impeller can be kept in a fixed state with the front guard plate and the rear guard plate, so that the threaded connection between the transmission shaft and the impeller can be loosened, and the pump head can be directly and integrally disassembled;

when installing new pump head, at first align the mounted position of impeller with the transmission shaft, it makes impeller and transmission shaft accomplish to rotate the transmission shaft and is connected, the peripheral face of sheath and apron plate, the peripheral face butt respectively of backplate, can guarantee the sheath, form inclosed working chamber between apron plate and the backplate three, avoid revealing of working medium, then it is fixed with the installation of transmission bracket with the pump body, the first adjustable connecting piece of rethread removes the apron plate to the position that has appropriate working clearance (1mm) with the impeller, adjust the second adjustable connecting piece with the backplate remove to the position that has appropriate working clearance (1mm) with the impeller, thereby accomplish the change work of pump head.

According to the horizontal slurry pump, when the pump head is replaced, the pump head can be replaced without disassembling the connection relation between the pump body and the pump cover, the whole process is simple to operate, and the pump head is replaced quickly and efficiently.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a horizontal slurry pump according to an embodiment of the present invention;

FIG. 2 is an enlarged view of the structure at A (after the sheath is removed) in FIG. 1;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 1;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 1;

fig. 5 is an enlarged schematic view of the structure at C in fig. 1.

In the figure: 1. a bracket; 11. adjusting the screw rod; 12. locking the nut; 2. a bearing assembly; 20. a hold-down bolt; 21. a pump body bolt; 3. a drive shaft; 4. a pump body; 401. a first card slot; 402. a containing groove; 403. positioning holes; 5. a pump cover; 501. a second card slot; 6. an impeller; 7. a front guard plate; 70. a first adjustable connection assembly; 701. a first tension bolt; 702. a first adjusting nut; 703. a first thrust bolt; 71. a corrugated structure; 72. a buffer tank; 73. pressing the flanges; 8. a rear guard plate; 80. a second adjustable connection assembly; 801. a second tension bolt; 802. a second adjusting nut; 803. a second thrust bolt; 9. a sheath; 90. a boss; 901. a first boss; 902. a second boss; 903. a first clamping edge; 904. a second clamping edge; 905. a positioning table; 906. a T-shaped hole; 91. a front sheath; 92. a rear sheath; 920. a ring groove; 93. a first connecting member; 94. a first fastening nut; 95. a second connecting member; 96. and a second fastening nut.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, a horizontal slurry pump according to the present invention will now be described. The utility model provides a horizontal slurry pump, includes bracket 1, horizontally connect in bracket 1 upper bearing subassembly 2, install transmission shaft 3 on bearing subassembly 2, with bracket 1 fixed connection's the pump body 4, with pump cover 5 that pump body 4 is connected to and be located between pump body 4 and the pump cover 5 and with the impeller 6 of transmission shaft 3 connection, still include: a front guard plate 7 positioned between the impeller 6 and the pump cover 5, a rear guard plate 8 positioned between the impeller 6 and the pump body 4, and a sheath 9; the front guard plate 7 is provided with a first adjustable connecting component 70 which penetrates through the pump cover 5; the rear guard plate 8 is provided with a second adjustable connecting component 80 penetrating through the pump body 4; the sheath 9 is in a volute shape and is fixedly connected with the inner wall of the pump body 4 and the inner wall of the pump cover 5, and two end faces of the sheath 9 are respectively abutted against the peripheral surface of the front guard plate 7 and the peripheral surface of the rear guard plate 8; the front guard plate 7 and the rear guard plate 8 have a clamping state for clamping the impeller 6 in a matching manner by adjusting the first adjustable connecting assembly 70 and the second adjustable connecting assembly 80, and also have a reset state for separating from two sides of the impeller 6 respectively by adjusting the first adjustable connecting assembly 70 and the second adjustable connecting assembly 80 again; the impeller 6 is in threaded connection with the transmission shaft 3.

The invention provides a use mode of a horizontal slurry pump, which comprises the following steps: it should be noted at first that, the impeller structural style that the sediment stuff pump is commonly used as centrifugal pump is closed impeller or semi-open impeller, and closed impeller comprises both sides apron and a plurality of blades that are located between the both sides apron, consequently just can realize pressing from both sides tight the impeller through exerting effort to impeller both sides face, and semi-open impeller comprises a side apron and a plurality of blade, because the shape and the fixed angle of a plurality of blades are the same, consequently the side of a plurality of blades is in the coplanar, consequently can realize pressing from both sides tight semi-open impeller through plate-like object.

As the prior art, the pump head assembly of the slurry pump comprises a pump body, a pump cover, an impeller and an internal overflowing assembly (a part which is in direct contact with a working medium when the slurry pump works and comprises a front protection plate, a rear protection plate and a sheath).

When the pump head of the horizontal slurry pump is replaced, the front protection plate 7 moves towards the impeller 6 until the front protection plate abuts against one side surface of the impeller 6 by adjusting the first adjustable connecting assembly 70, the rear protection plate 8 moves towards the impeller 6 until the rear protection plate abuts against the other end surface of the impeller 6 by adjusting the second adjustable connecting assembly 80, the front protection plate 7 and the rear protection plate 8 are in a clamping state of matching and clamping the impeller 6, then the pump body bolt 21 between the pump body 4 and the transmission bracket 1 is disassembled, the transmission shaft 3 is rotated in a reverse direction (the transmission shaft 3 is in threaded connection with the impeller 6, the thread rotation direction is opposite to the working rotation direction of the impeller 6, the transmission shaft 3 is rotated in an opposite rotation direction when the transmission shaft 3 normally works), and the clamped impeller 6 can keep a fixed state with the front protection plate 7 and the rear protection plate 8, so that the thread connection between the transmission shaft 3 and the impeller 6 can be loosened, the pump head is directly and integrally disassembled;

when installing the new pump head, at first align impeller 6's mounted position and transmission shaft 3, it makes impeller 6 and transmission shaft 3 accomplish to rotate transmission shaft 3 and is connected, the peripheral face of sheath 9 and preceding backplate 7, the peripheral face of backplate 8 butts respectively, can guarantee that sheath 9, form inclosed working chamber between preceding backplate 7 and the backplate 8 three, avoid revealing of working medium, then it is fixed to pass through pump body bolt 21 with the transmission bracket 1 with the pump body 4, the rethread adjusts first adjustable connecting piece and removes preceding backplate 7 to the position that has appropriate working clearance (1mm) with impeller 6, adjust second adjustable connecting piece 80 and remove backplate 8 to the position that has appropriate working clearance (1mm) with impeller 6, thereby accomplish the change work of pump head.

When the impeller 6 and the overflowing assembly of the slurry pump are worn but the wear amount does not reach the degree of replacement, in order to ensure the working efficiency of the slurry pump (to ensure that the impeller 6 keeps a reasonable working gap with the front guard plate 7 and the rear guard plate 8), the horizontal slurry pump provided by the invention also has the function of adjusting the distance between the front guard plate 7 and the rear guard plate 8 and the impeller 6, the adjusting mode is the same as that of the pump head replacement, and the description is omitted.

Compared with the prior art, the horizontal slurry pump provided by the invention has the advantages that the reasonable working gaps can be kept among the front protection plate 7, the rear protection plate 8 and the impeller 6 by adjusting the first adjustable connecting assembly 70 and the second adjustable connecting assembly 80, so that the working efficiency of the slurry pump is ensured, and the service life of a pump head is prolonged; when the pump head is changed, need not to dismantle the relation of connection between the pump body 4 and the pump cover 5, through adjusting first adjustable coupling assembling 70, the adjustable coupling assembling 80 of second, make the apron plate 7, 8 cooperation clamp impeller 6 on the apron plate, take apart the back antiport transmission shaft 3 with being connected between the pump body 4 and the bracket 1, can pull down the pump head, forward rotation transmission shaft 3 connects the back when installing new pump head, the fastening pump body 4 and bracket 1, then with apron plate 7 again, clearance adjustment to working gap between apron plate 8 and the impeller 6, whole pump head replacement process easy operation, the pump head is changed fast, high efficiency.

As a specific embodiment of the horizontal slurry pump provided by the present invention, please refer to fig. 1 and 5, the first adjustable connection assembly 70 includes a first pull bolt 701 and a first push bolt 703, one end of the first pull bolt 701 is fixedly connected to the front guard plate 7, and the other end of the first pull bolt 701 passes through the pump cover 5 and is in threaded connection with a first adjusting nut 702; one end of the first thrust bolt 703 is abutted against the front guard plate 7, and the other end of the first thrust bolt passes through the pump cover 5 and is in threaded connection with the pump cover 5; the second adjustable connecting assembly 80 comprises a second tension bolt 801 and a second thrust bolt 803, one end of the second tension bolt 801 is fixedly connected with the rear guard plate 8, and the other end of the second tension bolt passes through the pump body 4 and is in threaded connection with a second adjusting nut 802; one end of the second thrust bolt 803 abuts against the rear guard plate 8, and the other end thereof penetrates through the pump body 4 and is in threaded connection with the pump body 4.

When the gap between the impeller 6 and the front guard plate 7 needs to be increased, the first thrust bolt 703 is screwed out in the direction away from the front guard plate 7, then the first adjusting nut 702 is rotated to enable the first tension bolt 701 to apply tension to the front guard plate 7, the front guard plate 7 is pulled in place in the direction away from the impeller 6, and then the first thrust bolt 703 is rotated to enable the front guard plate to be abutted against the front guard plate 7, so that the front guard plate 7 is firmly fixed; when the gap between the impeller 6 and the front guard plate 7 needs to be reduced, the first adjusting nut 702 is loosened, the first thrust bolt 703 is rotated to be screwed in the direction close to the front guard plate 7, the front guard plate 7 is pushed to the position close to the impeller 6, and then the first adjusting nut 702 is screwed, so that the first tension bolt 701 keeps tension on the front guard plate 7, and the front guard plate 7 is fixed again. The gap between the rear guard plate 8 and the impeller 6 is adjusted in the same manner as the gap between the front guard plate 7 and the impeller 6, and thus the detailed description thereof is omitted. When the pump head is replaced, the positions of the front guard plate 7 and the rear guard plate 8 need to be adjusted simultaneously, so that the front guard plate and the rear guard plate are matched to clamp the impeller 6 tightly.

In this embodiment, as a specific implementation manner, a plurality of first tension bolts 701 and a plurality of first thrust bolts 703 are circumferentially provided at intervals with the rotation axis of the impeller 6 as a center, and the first tension bolts 701 and the first thrust bolts 703 are alternately provided; a plurality of second tension bolts 801 and a plurality of second thrust bolts 803 are circumferentially provided at intervals around the rotation axis of the impeller 6, and the second tension bolts 801 and the second thrust bolts 803 are provided at intervals intersecting each other. The front guard plate 7 and the rear guard plate 8 are ensured to be fixed evenly and reliably.

As a specific embodiment of the horizontal slurry pump provided by the present invention, please refer to fig. 1, a housing of a bearing assembly 2 is pressed and fixed on a bracket 1 through a pressing bolt 20, an adjusting screw 11 parallel to an axial direction of a transmission shaft 3 is arranged on the bracket 1 in a penetrating manner, and the adjusting screw 11 is fixedly connected with the bracket 1; be equipped with the engaging lug on bearing assembly 2's the shell, adjusting screw 11 passes the engaging lug, and threaded connection has two lock nut 12 that are located the engaging lug both sides respectively on adjusting screw 11, through two lock nut 12 locking engaging lugs to make bearing assembly 2's rigidity.

Because the transmission shaft 3 and the bearing assembly 2 are assembled into a whole, and the transmission shaft 3 is fixedly connected with the impeller 6, when the clearance between the impeller 6 and the front guard plate 7 or the rear guard plate 8 needs to be adjusted, only the axial position of the bearing assembly 2 on the bracket 1 along the transmission shaft 3 needs to be adjusted. When in adjustment, the compression bolt 20 is firstly loosened, then the bearing assembly 2 is moved along the axial direction of the transmission shaft 3 by rotating the two locking nuts 12, the two locking nuts 12 are locked after the adjustment is in place, and the compression bolt 20 is screwed to fix the bearing assembly 2.

Referring to fig. 2 and 3 together, as an embodiment of the horizontal slurry pump according to the present invention, an accommodating groove 402 is formed on an inner side wall of the pump body 4 and recessed from an end surface thereof toward the bracket 1, the accommodating groove 402 is connected to an end surface of the pump cover 5, and a boss 90 for being fitted in the accommodating groove 402 is formed on an outer wall of the sheath 9.

The end face of the pump body 4 is provided with the accommodating groove 402, so that the connecting face of the pump body 4 and the pump cover 5 is of an asymmetric structure, referring to fig. 2, only the accommodating groove 402 needs to be processed on the pump body 4 during processing, and compared with the situation that the end faces of the pump body 4 and the pump cover 5 are both provided with the accommodating groove 402 structure in the prior art, the process of processing the accommodating groove 402 on the pump cover 5 is reduced, the processing technology of the pump cover 5 is simplified, and the overall processing efficiency is improved;

the boss 90 on the sheath 9 can be embedded in the accommodating groove 402, so that the connection position of the pump body 4 and the pump cover 5 is sealed, the embedded connection of the boss 90 and the accommodating groove 402 can also play a role in positioning the position of the sheath 9, and therefore the sheath 9 of the slurry pump is prevented from being dislocated in the axial direction of the transmission shaft 3.

As an embodiment of the horizontal slurry pump provided by the present invention, please refer to fig. 1 to 3 together, the sheath 9 includes a front sheath 91 and a rear sheath 92 with symmetrical shapes; the corresponding end surfaces of the front sheath 91 and the rear sheath 92 are mutually attached, the other end surface of the front sheath 91 is abutted against the front guard plate 7, and the other end surface of the rear sheath 92 is abutted against the rear guard plate 8. The sheath 9 sets up to two parts of mutual symmetry, can fix preceding sheath 91 on pump cover 5 earlier when the installation, and back sheath 92 is fixed on the pump body 4, then directly with pump cover 5 with pump body 4 align back fixed mounting can, make the installation more convenient.

As a specific embodiment of the horizontal slurry pump provided by the present invention, please refer to fig. 3 to 5, a first slot 401 recessed toward the direction of the bracket 1 is disposed on a radial slot wall of the accommodating slot 402; a second clamping groove 501 which is communicated with the accommodating groove 402 and is axially aligned with the first clamping groove 401 is formed in the pump cover 5; the boss 90 includes a first boss 901 on the rear jacket 92 and a second boss 902 on the front jacket 91; the first boss 901 is provided with a first clamping edge 903 which protrudes outwards along the axial direction, and the first clamping edge 903 is clamped with the first clamping groove 401; the second boss 902 is provided with a second clamping edge 904 protruding outwards along the axial direction, and the second clamping edge 904 is clamped with the second clamping groove 501.

The first clamping groove 401 and the accommodating groove 402 can be machined and formed together through a milling process, and the second clamping groove 501 can be machined and formed in parallel when the end face of the pump cover 5 is turned, so that the machining is convenient; through the joint of first draw-in groove 401 and first card limit 903, the joint of second draw-in groove 501 and second card limit 904, form fixed action to sheath 9, can prevent that sheath 9 from taking place radial shrinkage or deformation (sheath 9 is flexible material such as rubber, plastics and easily takes place to warp usually).

In this embodiment, the cross dimension of the first card slot 401 is larger than the cross dimension of the first card edge 903, and the cross dimension of the second card slot 501 is larger than the cross dimension of the second card edge 904. In order to enable the sheath 9 to form a good sealing effect on the connection between the pump body 4 and the pump cover 5, the cross section size of the boss 90 arranged on the sheath 9 is larger than that of the accommodating groove 402, so that after the pump cover 5 and the pump body 4 are jointed and fixed, the boss 90 is extruded and deformed, and the deformed part of the boss enters the first clamping groove 401 and the second clamping groove 501 through extrusion, so that the first clamping groove 401 and the second clamping groove 501 are filled, and the sealing effect of the sheath 9 on the connection position of the pump body 4 and the pump cover 5 is ensured.

Referring to fig. 3, a plurality of annular grooves 920 are formed on a joint surface of the rear sheath 92 and the front sheath 91 as a specific embodiment of the horizontal slurry pump according to the present invention. Because the mode that sheath 9 adopted the two parts laminating to constitute, it is good to require the sealing between the composition surface of preceding sheath 91 and back sheath 92, after pump cover 5 fixed mounting is on the pump body 4, pressurized deformation between the composition surface of preceding sheath 91 and back sheath 92 (including the composition surface of first boss 901 and second boss 902), consequently set up many annular 920 on the composition surface, reduce the area of contact of the composition surface of preceding sheath 91 and back sheath 92, and increase the deflection of composition surface, the connection gap between the composition surface of sheath 91 and back sheath 92 before the sealing that can be better, reach better sealed effect.

Referring to fig. 4 or 5, as an embodiment of the horizontal slurry pump of the present invention, the outer peripheral surface of the front protecting plate 7 and the outer peripheral surface of the rear protecting plate 8 are respectively provided with a corrugated structure 71. The corrugated structures 71 arranged on the peripheral surface of the front guard plate 7 and the peripheral surface of the rear guard plate 8 can form multi-layer annular sealing with the sheath 9, and the sealing effect is good; when the position of front guard plate 7, backplate 8 is adjusted, the relative position of front guard plate 7, backplate 8 and sheath 9 changes, nevertheless utilizes ripple structure 71 can guarantee to keep in close contact with between front guard plate 7 and sheath 9, backplate 8 and the sheath 9 all the time to avoid revealing.

As a specific embodiment of the horizontal slurry pump provided by the present invention, please refer to fig. 4, a first connecting piece 93 is embedded on a side wall of the front sheath 91, and the first connecting piece 93 is connected with a first fastening nut 94 through a screw thread after passing through the pump cover 5; the side wall of the rear sheath 92 is fitted with a second connector 95, and the second connector 95 is screwed with a second fastening nut 96 after passing through the pump body 4.

The front sheath 91 is fixedly connected with the pump cover 5 through the first connecting piece 93, and the rear sheath 92 is fixedly connected with the pump body 4 through the second connecting piece 95, so that the fixing stability of the sheath 9 is ensured, and the phenomenon that the front sheath 91 and the rear sheath 92 are sunken towards the impeller 6 is avoided; when the pump head is replaced, the first fastening nut 94 and the second fastening nut 96 need to be loosened appropriately to deform the front sheath 91 and the rear sheath 92 toward the impeller 6, so that the phenomenon that the front sheath 91 and the rear sheath 92 are damaged due to interference and abrasion caused by excessive movement amounts of the front guard plate 7 and the rear guard plate 8 is avoided.

In this embodiment, the side wall of the front sheath 91 and the side wall of the rear sheath 92 are respectively provided with a positioning table 905, the pump cover 5 and the pump body 4 are respectively provided with a positioning hole 403 corresponding to the positioning table 905, and each positioning table 905 is provided with a T-shaped hole 906 for embedding the first connecting piece 93 and the second connecting piece 95. When the front sheath 91 and the rear sheath 92 are installed, the positioning table 905 is embedded in the positioning hole 403, so that the installation and the fixation are convenient, and the sheath 9 can be prevented from being dislocated.

Referring to fig. 4 or 5, as a specific embodiment of the horizontal slurry pump provided by the present invention, the front protecting plate 7 is provided with a pressing flange 73 at the edge of the plate surface close to the pump cover 5, and the rear protecting plate 8 is provided with a pressing flange 73 at the edge of the plate surface close to the pump body 4. After the front guard plate 7 and the rear guard plate 8 are installed, the pressing ribs 73 can press the outer side surface of the sheath 9, so that the connection sealing performance between the front guard plate 7, the rear guard plate 8 and the sheath 9 is guaranteed.

In this embodiment, the outer peripheral surface of the front fender 7 and the outer peripheral surface of the rear fender 8 are provided with buffer grooves 72, respectively. Since the front and rear protection plates 7 and 8 have the function of pressing the sheath 9 to deform the sheath, the sheath 9 is prevented from being damaged by pressure by providing the buffer groove 72 to accommodate the deformation of the sheath 9.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.