Slurry pump facilitating replacement of quick-wear parts

Abstract

The slurry pump comprises a slurry pump rack, a front cavity is formed in the slurry pump rack, a front end plate is arranged on the front side of the front cavity, the outer side of the front end plate is connected with a treatment chamber, and a top operation opening is formed in the position, on the rack, of the upper end of the front cavity; the front end of the wear-resistant disc is connected with the treatment chamber; the front end of the cylinder sleeve is inserted into the wear-resistant disc; the gland is sleeved outside the cylinder sleeve, the front end of the gland is inserted into the wear-resistant disc, and the front end of the gland is suitable for abutting against a flange at the front end of the cylinder sleeve; the front end of the piston rod is inserted from the rear end of the cylinder sleeve, a piston head is arranged at the front end of the piston rod, and the rear end of the rear piston rod is connected with the middle connecting rod through a hoop. The cylinder sleeve and the piston rod in the hydraulic cylinder can be quickly disassembled and assembled by rotating the gland, and the disassembled and assembled parts are quickly taken out through the hoisting device, so that the mounting precision of the cylinder sleeve is ensured, and the later disassembly, maintenance and replacement of the cylinder sleeve are also facilitated.

Description

Technical Field

[0001] The invention relates to the field of mud pumps, and in particular to a mud pump with easy replacement of wearing parts. Background Art

[0002] The hydraulic cylinder of the mud pump works very hard. The cylinder liner, piston rod, piston head and other parts of the hydraulic cylinder are used frequently and are consumable parts. After using the mud pump for a period of time, it needs to be disassembled and repaired, or directly replaced with new parts.

[0003] In the past, the unreasonable structural design of mud pumps made it inconvenient to disassemble and maintain the cylinder parts in the mud pumps. Summary of the invention

[0004] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art, provide a mud pump with easy replacement of wearing parts, and solve the technical problem of inconvenient disassembly and maintenance of the liquid cylinder in the previous mud pump.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A mud pump is provided which is convenient for replacing wearing parts, comprising:

[0007] A mud pump frame, wherein a front cavity is provided on the mud pump frame, a front end plate at the front side of the front cavity, an outer side of the front end plate is connected to the processing chamber, and a top operation port is provided on the frame at the upper end of the front cavity;

[0008] A wear-resistant disc, the front end of which is connected to the processing chamber, and the rear end of which passes through the front plate and extends into the front cavity;

[0009] The cylinder liner has a front end inserted into the wear-resistant disc and forms a sealing fit with the wear-resistant disc;

[0010] A gland, which is sleeved on the outside of the cylinder liner, with the front end of the gland inserted into the wear-resistant disk and screwed together with the wear-resistant disk. The front end of the gland is suitable for abutting against the front end flange of the cylinder liner to axially lock the cylinder liner in the wear-resistant disk;

[0011] The front end of the piston rod is inserted from the rear end of the cylinder sleeve, and a piston head is arranged at the front end of the piston rod. The rear end of the rear plug rod is connected with the middle connecting rod through a clamp.

[0012] The lifting device is arranged on the frame and is suitable for lifting parts from the front cavity.

[0013] Furthermore, a limiting ring groove is provided on the cylinder sleeve, a locking ring is arranged in the limiting ring groove, and the locking ring comprises

[0014] Two semicircular rings and an O-ring, the two semicircular rings are arranged in the limiting ring groove, and the O-ring is clamped on the outside of the two semicircular rings, so as to lock the two semicircular rings on the cylinder sleeve, and the two semicircular rings are suitable for abutting the rear end of the gland, so as to lock the gland.

[0015] Furthermore, the wear-resistant disc comprises

[0016] A wear-resistant chassis and a wear-resistant cylinder, wherein the wear-resistant chassis and the wear-resistant cylinder are axially fastened together by a plurality of first bolts, the front end flange of the cylinder sleeve abuts against the wear-resistant chassis, an internal thread is provided in the wear-resistant cylinder, and a threaded connection is formed between the pressure cover and the wear-resistant cylinder.

[0017] Furthermore, the rear port of the cylinder sleeve is connected to a fender, the fender is a U-shaped structure, and the piston rod passes through the U-shaped opening of the fender.

[0018] Furthermore, a plurality of shifting blocks are arranged at the rear end of the gland, and the shifting blocks are distributed in a circular pattern on the outer wall of the rear end of the gland.

[0019] Furthermore, the hoisting device includes a support, a column, a beam, a hoisting plate, a roller and a hoist;

[0020] The support is fixed on the upper end of the frame, the support is a cylindrical structure, the lower end of the column is inserted into the support, one end of the beam is connected to the column, the beam is an I-beam, the lifting plate is arranged on the beam through a plurality of rollers, and a hoist is arranged below the lifting plate.

[0021] The beneficial effects of the present invention are:

[0022] The cylinder liner and piston rod in the hydraulic cylinder can be quickly disassembled and assembled by rotating the pressure cover. The disassembled parts can be quickly taken out through the lifting device to ensure the installation accuracy of the cylinder liner and facilitate the disassembly, maintenance and replacement of the cylinder liner in the later stage.

[0023] The gland can be locked on the cylinder liner by the locking ring to prevent the gland from loosening. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The present invention is further described below in conjunction with the accompanying drawings.

[0025] Figure 1 is a stereogram of a mud pump of the present invention;

[0026] Figure 2 is a half-section diagram of the mud pump of the present invention;

[0027] Figure 3 It is a half-section diagram of the hydraulic cylinder;

[0028] Figure 4 is a schematic diagram of the locking ring;

[0029] Figure 5It is a schematic diagram of the cylinder sleeve;

[0030] Figure 6 It is a schematic diagram of the gland;

[0031] Figure 7 is a schematic diagram of a wear-resistant disc;

[0032] Figure 8 It is a structural diagram between the wear plate and the front end cover;

[0033] Fig. 9 It is a schematic diagram of the fender on the cylinder barrel;

[0034] Fig.10 It is the structure between the wear-resistant disc and the processing chamber;

[0035] Among them, 1, frame, 11, front end plate, 12, processing chamber, 13, crosshead, 14, middle connecting rod, 15, spray device;

[0036] 21. Cylinder liner, 22. Piston rod, 23. Gland, 231. Shifter, 24. Fender, 25. Half ring, 26. O-ring, 27. Piston head;

[0037] 3. Wear-resistant disc, 31. Wear-resistant bottom plate, 32. Wear-resistant cylinder;

[0038] 41. a first bolt, 42. a second bolt, 43. a first sealing ring, 44. a second sealing ring;

[0039] 5. Lifting device, 51. Support, 52. Column, 53. Beam, 54. Lifting plate, 55. Hoisting hoist. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0041] The present application provides a mud pump that is easy to replace wearing parts, which is described in detail below. It should be noted that the description order of the following embodiments does not limit the preferred order of the embodiments of the present application. In the following embodiments, the description of each embodiment has its own emphasis. For parts that are not described in detail in a certain embodiment, please refer to the relevant description of other embodiments.

[0042] In order to solve the technical problem of inconvenient disassembly and maintenance of the liquid cylinder in the prior art mud pump, an embodiment of the present application provides a mud pump with convenient replacement of wearing parts, which is described in detail below.

[0043] like Figures 1 to 10 As shown, a mud pump that is easy to replace wearing parts includes:

[0044] A mud pump frame 1, wherein a front chamber and a crosshead working chamber are provided on the mud pump frame 1, a front end plate 11 is provided at the front side of the front chamber, the outer side of the front end plate 11 is connected to a processing chamber 12, and a top operation port is provided at the upper end of the front chamber on the frame 1;

[0045] A crosshead 13 is arranged in the crosshead working chamber, and the crosshead 13 moves back and forth in the crosshead working chamber.

[0046] A liquid cylinder is arranged in the front cavity, and the liquid cylinder mainly comprises a cylinder sleeve 21 and a piston rod 22 .

[0047] The wear-resistant disc 3 has a front end sealedly connected to the processing chamber 12 and a rear end passing through the front plate 11 and extending into the front cavity;

[0048] The cylinder sleeve 21, the front end of which is inserted into the wear-resistant disc 3 and forms a sealing fit with the wear-resistant disc 3;

[0049] A gland 23, the gland 23 is sleeved on the outside of the cylinder liner 21, the front end of the gland 23 is inserted into the wear-resistant disk 3, and is screwed together with the wear-resistant disk 3, and the front end of the gland 23 is suitable for abutting against the front end flange of the cylinder liner 21 to axially lock the cylinder liner 21 in the wear-resistant disk 3;

[0050] The front end of the piston rod 22 is inserted from the rear end of the cylinder sleeve 21. The front end of the piston rod 22 is provided with a piston head 27. The rear end of the rear piston rod is connected to the middle connecting rod 14 through a clamp.

[0051] A lifting device 5 is arranged on the frame 1, and the lifting device 5 is suitable for lifting parts from the front cavity.

[0052] In this embodiment, the piston head 27 is mounted on the piston in a conventional manner, which will not be described in detail herein.

[0053] In this embodiment, a spray device 15 is further provided in the front cavity. The spray pipe of the spray device 15 extends from the rear end of the cylinder sleeve 21 . The spray device 15 sprays the inside of the cylinder sleeve 21 to prevent mud from affecting the internal piston head 27 .

[0054] The detachable structure of the clamp facilitates the separation of the piston rod 22 and the intermediate connecting rod 14, and facilitates the disassembly and assembly of the piston rod 22 in the front cavity.

[0055] Specifically, as an optional implementation in this embodiment, Figure 4 and Figure 5 As shown, the cylinder sleeve 21 is provided with a limiting ring groove, and a locking ring is arranged in the limiting ring groove. The locking ring includes

[0056] Two semicircular rings 25 and O-ring 26, the two semicircular rings 25 are arranged in the limiting ring groove, and the O-ring 26 is clamped on the outside of the two semicircular rings 25, so as to lock the two semicircular rings 25 on the cylinder sleeve 21, and the two semicircular rings 25 are suitable for abutting the rear end of the gland 23, so as to lock the gland 23.

[0057] Specifically, as an optional implementation in this embodiment, Figure 2 , Figure 3 , Figure 6 , Figure 7 , Figure 8 As shown, the wear-resistant disc 3 includes

[0058] The wear-resistant chassis 31 and the wear-resistant cylinder 32 are axially fastened together by a plurality of first bolts 41 , the front end flange of the cylinder liner 21 abuts against the wear-resistant chassis 31 , the wear-resistant cylinder 32 is provided with an internal thread, and a threaded connection is formed between the pressure cover 23 and the wear-resistant cylinder 32 .

[0059] The wear-resistant bottom plate 31 , the wear-resistant cylinder 32 and the processing chamber 12 are connected by a first bolt 41 to ensure the sealing between the three.

[0060] In this embodiment, a first sealing ring 43 is provided between the wear-resistant chassis 31 and the processing chamber 12 , and a second sealing ring 44 is provided between the front end flange of the cylinder sleeve 21 and the wear-resistant chassis 31 .

[0061] In this embodiment, the processing chamber 12 and the front end plate 11 are connected by a plurality of second bolts 42 .

[0062] Specifically, as an optional implementation in this embodiment, Fig. 9 As shown, the rear port of the cylinder sleeve 21 is connected to a fender 24 , the fender 24 is a U-shaped structure, and the piston rod 22 passes through the U-shaped opening of the fender 24 .

[0063] Specifically, as an optional implementation in this embodiment, Figure 6 As shown, a plurality of shifting blocks 231 are arranged at the rear end of the pressure cover 23 , and the shifting blocks 231 are distributed in a circle on the outer wall of the rear end of the pressure cover 23 .

[0064] Specifically, as an optional implementation in this embodiment, Figure 2 As shown, the hoisting device 5 includes a support 51, a column 52, a crossbeam 53, a hoisting plate 54, a roller and a hoist 55;

[0065] The support 51 is fixed on the upper end of the frame 1, and the support 51 is a cylindrical structure. The lower end of the column 52 is inserted into the support 51, one end of the beam 53 is connected to the column 52, and the beam 53 is an I-beam. The hanging plate 54 is set on the beam 53 through a plurality of rollers, and a hoist 55 is set below the hanging plate 54.

[0066] When the cylinder is damaged, remove the fender 24 and the locking ring, loosen the clamp, separate the piston rod 22 and the intermediate connecting rod 14, and then unscrew the pressure cover 23. After that, the piston rod 22 and the cylinder sleeve 21 can be removed. The removed parts are taken out through the lifting device 5, and new parts are installed in the front cavity through the lifting device 5, making the disassembly and maintenance of the entire mud pump more convenient.

[0067] In the hoisting device 5, the column 52 can rotate in the support 51, and the entire mechanism can be rotated in a circular direction, ensuring that the technician can perform multi-directional maintenance work on the mud pump. When the hoisting device 5 is repairing or replacing parts of the mud pump, lubricating oil is added to the gap between the column 52 and the support 51 through an oil cup to avoid friction and wear. Wearing parts or other heavy parts can be easily lifted by the hoist 55.

[0068] The mud pump of the present invention is specialized and does not require a large overhead crane, which causes waste of resources. The mud pump is portable and is mostly used in mining sites with limited conditions. When parts need to be replaced, there is no need to move the mud pump group as a whole to the overhead crane, so that maintenance work can be carried out quickly, saving time and cost, thereby improving the overall working efficiency of the mud pump.

[0069] The various devices selected in this application (components whose specific structures are not described) are all universal standard parts or components known to technical personnel in this field, and their structures and principles can be known to technical personnel through technical manuals or through conventional experimental methods.

[0070] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the 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, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0072] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. The device embodiments described above are merely schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0073] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0074] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0075] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A mud pump that is easy to replace wearing parts, characterized in that: include A mud pump frame (1), wherein a front cavity is provided on the mud pump frame (1), a front end plate (11) is provided at the front side of the front cavity, the outer side of the front end plate (11) is connected to a processing chamber (12), and a top operation port is provided at the upper end of the front cavity on the frame (1); A wear-resistant disc (3), the front end of which is connected to the processing chamber (12), and the rear end of which passes through the front end plate (11) and extends into the front cavity; The cylinder sleeve (21) has a front end inserted into the wear-resistant disc (3) and forms a sealing fit with the wear-resistant disc (3); A gland (23), the gland (23) is sleeved on the outside of the cylinder sleeve (21), the front end of the gland (23) is inserted into the wear-resistant disc (3), and is screw-matched with the wear-resistant disc (3), and the front end of the gland (23) is suitable for abutting against the front end flange of the cylinder sleeve (21) to axially lock the cylinder sleeve (21) in the wear-resistant disc (3); A piston rod (22) has its front end inserted from the rear end of the cylinder sleeve (21), a piston head (27) is arranged at the front end of the piston rod (22), and the rear end of the rear piston rod is connected to the intermediate connecting rod (14) via a clamp; A lifting device (5) is arranged on the frame (1), and the lifting device (5) is suitable for lifting parts from the front cavity.

2. The mud pump with easy replacement of wearing parts according to claim 1 is characterized in that: The cylinder sleeve (21) is provided with a limiting ring groove, a locking ring is arranged in the limiting ring groove, and the locking ring comprises Two semicircular rings (25) and an O-ring (26), the two semicircular rings (25) are arranged in the limiting ring groove, the O-ring (26) is clamped on the outside of the two semicircular rings (25), so as to lock the two semicircular rings (25) on the cylinder sleeve (21), and the two semicircular rings (25) are suitable for abutting the rear end of the gland (23), so as to lock the gland (23).

3. The mud pump with easy replacement of wearing parts according to claim 1 is characterized in that: The wear-resistant disc (3) comprises A wear-resistant chassis (31) and a wear-resistant cylinder (32), wherein the wear-resistant chassis (31) and the wear-resistant cylinder (32) are axially fastened together by a plurality of first bolts (41), the front end flange of the cylinder sleeve (21) is in contact with the wear-resistant chassis (31), an internal thread is provided in the wear-resistant cylinder (32), and a threaded connection is formed between the pressure cover (23) and the wear-resistant cylinder (32).

4. The mud pump with easy replacement of wearing parts according to claim 1 is characterized in that: The rear port of the cylinder sleeve (21) is connected to a fender (24), the fender (24) is a U-shaped structure, and the piston rod (22) passes through the U-shaped opening of the fender (24).

5. The mud pump with easy replacement of wearing parts according to claim 1 is characterized in that: A plurality of shifting blocks (231) are arranged at the rear end of the pressure cover (23), and the shifting blocks (231) are distributed in a circular pattern on the outer wall of the rear end of the pressure cover (23).

6. The mud pump with easy replacement of wearing parts according to claim 1 is characterized in that: The hoisting device (5) comprises a support (51), a column (52), a crossbeam (53), a hoisting plate (54), a roller and a hoisting hoist (56); The support (51) is fixed on the upper end of the frame (1); the support (51) is a cylindrical structure; the lower end of the column (52) is inserted into the support (51); one end of the crossbeam (53) is connected to the column (52); the crossbeam (53) is an I-beam; the hanging plate (54) is arranged on the crossbeam (53) through a plurality of rollers; and a hanging hoist (56) is arranged below the hanging plate (54).

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