Manual gear shifting device for slurry pump

Abstract

The utility model relates to the technical field of slurry pump gear shifting devices, in particular to a manual gear shifting device for a slurry pump, which comprises a gear shifting device body, the gear shifting device body is fixedly connected to the middle of a mounting seat, fixing components are arranged on two sides of the interior of the mounting seat, and a placing frame is arranged in the middle of the bottom surface of the interior of the mounting seat. The gear shifting device comprises a gear shifting device body, the gear shifting device body comprises a mounting base, fixing assemblies are arranged on the two sides of the top face of the mounting base, the fixing assemblies are connected with a transmission assembly, two rectangular openings are formed in the two sides of the top face of the mounting base, and fixing shafts are fixedly connected to the interiors of the two rectangular openings. The gear shifting device has the beneficial effects that the transmission assembly drives the two fixing assemblies on the two sides of the interior of the mounting base to move, and meanwhile the gear shifting device body is fixed; according to the gear shifting device, the gear shifting device body can be rapidly fixed without a large number of bolts, the fixing assembly and the transmission assembly are locked through the locking assembly, the situation that the transmission assembly rotates reversely, and consequently fixing of the gear shifting device body is loosened is prevented, and the mounting stability of the gear shifting device body is further improved.

Description

Technical Field

[0001] The utility model relates to the field of mud pump shifting devices, in particular to a manual shifting device for a mud pump. Background Art

[0002] The mud pump shift device is a transmission mechanism tailored for the oilfield drilling mud pump group. It is installed between the engine and the mud pump to adjust the mud pump displacement over a wide range without replacing the cylinder liner. The existing shift mechanism is large in size and is mostly installed outside the mud pump body by bolts. It takes a lot of time and effort to fix and disassemble it. Therefore, we launched a manual shift device for mud pumps. Utility Model Content

[0003] The utility model aims to provide a manual shift device for a mud pump to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a manual shifting device for a mud pump, the manual shifting device for a mud pump comprising a shifting device body, the shifting device body is fixedly connected to the middle of a mounting seat, fixing components are arranged on both sides of the interior of the mounting seat, a placing frame is arranged in the middle of the inner bottom surface of the mounting seat, the fixing component is connected to a transmission component, two rectangular openings are arranged on both sides of the top surface of the mounting seat, a fixing shaft is fixedly connected to the inside of the two rectangular openings, two wedge-shaped openings and a buckle opening are respectively arranged on both sides of the shifting device body, and locking components are arranged on both sides of the mounting seat;

[0005] The fixing assembly includes two first slide rails fixedly connected to the inner bottom surface of the mounting seat and a second slide rail fixedly connected to one side of the mounting seat, the first slide rail is slidably connected to the inside of the first slide bar, the first slide bar is fixedly connected to the bottom surface of the lower rack, the lower rack is fixedly connected to a locking rod at one end close to the shifting device body, two wedge blocks are welded on the side of the locking rod close to the shifting device body, and the two wedge blocks are respectively inserted into the inside of the two wedge-shaped openings.

[0006] Preferably, the second slide rail is internally slidably connected to a second slide bar, the top of the second slide bar is hinged with a connecting rod, the middle of the connecting rod is provided with a straight slot, the top of the connecting rod is fixedly connected to a snap-in block, the snap-in block is snapped into the inside of the snap-fitting opening, and the second slide bar is fixedly connected to one side of the upper rack.

[0007] Preferably, the inner width of the straight slot is consistent with the outer diameter of the fixing shaft, and the fixing shaft passes through the middle of the straight slot.

[0008] Preferably, the locking assembly includes a first spring fixedly connected to one side of the mounting seat, one end of the first spring away from the mounting seat is fixedly connected to a pull rod, and one end of the pull rod passes through the interior of the mounting seat and is connected to the arc plate.

[0009] Preferably, a plurality of fixing cylinders are fixedly connected to one side of the arc-shaped plate, a second spring is arranged inside the plurality of fixing cylinders, and a locking pin is fixedly connected to one end of the second spring away from the arc-shaped plate.

[0010] Preferably, the transmission assembly includes a driving shaft rotatably connected to the middle of the rear wall of the mounting base, and one end of the driving shaft extending to the inside of the mounting base is fixedly connected to a secondary gear, the secondary gear is located between the upper rack and the lower rack, and the secondary gear is meshed with the upper rack and the lower rack.

[0011] Preferably, a main gear is fixedly connected to the middle of the driving shaft, a transmission gear is meshed with one side of the main gear, the transmission gear is rotatably connected to the outer wall of the mounting seat through a connecting shaft, and a main pulley is fixedly connected to the end of the connecting shaft away from the mounting seat, and the main pulley is connected to the secondary pulley through a transmission belt.

[0012] Preferably, the driving shaft and the auxiliary gear form a group, with two groups in total, and the driving shafts of the two groups of driving shafts close to the main gear are connected to the knob.

[0013] The manual shifting device for a mud pump proposed by the utility model places the shifting device body into the placing frame, and then uses the transmission component to drive the two sets of fixing components on both sides of the mounting seat to move, and fixes the shifting device body at the same time, and can realize rapid fixing of the shifting device body without a large number of bolts, and realize rapid disassembly and assembly of the shifting device body, which is convenient for later maintenance. After fixing, the locking component is used to lock the fixing component and the transmission component to prevent the transmission component from reversing, which would cause the fixing of the shifting device body to loosen, and further improve the stability of the installation of the shifting device body. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the main three-dimensional structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the side section of the utility model;

[0016] Figure 3 This is a schematic diagram of the three-dimensional structure of the utility model in front view;

[0017] Figure 4 For this utility model Figure 3 A in the figure is an enlarged schematic diagram of the three-dimensional structure;

[0018] Figure 5It is a schematic diagram of a partial front view cross-section three-dimensional structure of the utility model;

[0019] Figure 6 It is a top view of the three-dimensional structure of the transmission component of the utility model.

[0020] In the figure: 1, shift device body; 2, mounting seat; 3, fixing assembly; 301, first slide rail; 302, first slide bar; 303, lower rack; 304, locking rod; 305, wedge block; 306, upper rack; 307, second slide rail; 308, second slide bar; 309, connecting rod; 3010, straight notch; 3011, clamping block;

[0021] 4. Placement frame; 5. Transmission assembly; 501. Driving shaft; 502. Sub-gear; 503. Main gear;

[0022] 504, transmission gear; 505, primary pulley; 506, secondary pulley; 6, rectangular opening; 7, fixed shaft; 8, wedge-shaped opening; 9, snap-fit ​​opening; 10, locking assembly; 1001, first spring; 1002, pull rod; 1003, arc plate; 1004, fixed cylinder; 1005, second spring; 1006, locking pin. DETAILED DESCRIPTION

[0023] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of 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] Embodiment 1

[0025] See also Figure 1-Figure 6The utility model provides a technical solution: a manual shifting device for a mud pump, the manual shifting device for a mud pump comprises a shifting device body 1, the shifting device body 1 is fixedly connected to the middle of a mounting seat 2, fixing components 3 are arranged on both sides of the interior of the mounting seat 2, a placing frame 4 is arranged in the middle of the inner bottom surface of the mounting seat 2, the fixing component 3 is connected to the transmission component 5, two rectangular openings 6 are arranged on both sides of the top surface of the mounting seat 2, a fixing shaft 7 is fixedly connected inside the two rectangular openings 6, two wedge-shaped openings 8 and a snap-fit ​​opening 9 are respectively arranged on both sides of the shifting device body 1, and locking components 10 are arranged on both sides of the mounting seat 2; when the shifting device body 1 needs to be installed, it is placed in the placing frame 4, and then the shifting device body 1 is fixed by the fixing component 3, and the fixing component 3 is locked by the locking component 10, so as to realize the rapid installation of the shifting device body 1.

[0026] Embodiment 2

[0027] On the basis of the first embodiment, the fixing assembly 3 includes two first slide rails 301 fixedly connected to the inner bottom surface of the mounting seat 2 and a second slide rail 307 fixedly connected to one side of the mounting seat 2. The first slide rail 301 is internally slidably connected with a first slide bar 302, and the first slide bar 302 is fixedly connected to the bottom surface of the lower rack 303. The end of the lower rack 303 close to the shift device body 1 is fixedly connected with a locking rod 304. Two wedge blocks 305 are welded on the side of the locking rod 304 close to the shift device body 1, and the two wedge blocks 305 are respectively inserted into the inside of the two wedge-shaped openings 8; the first slide rail 301 and the first slide bar 302 cooperate with each other to enable the lower rack 303 to slide along the direction of the first slide rail 301, thereby driving the two wedge blocks 305 on the locking rod 304 to be inserted into the wedge-shaped opening 8 of the shift device body 1, thereby fixing the shift device body 1.

[0028] Embodiment 3

[0029] On the basis of the second embodiment, the second slide rail 307 is internally slidably connected to the second slide bar 308, the top of the second slide bar 308 is hinged with a connecting rod 309, the middle of the connecting rod 309 is provided with a straight slot 3010, the top of the connecting rod 309 is fixedly connected to a clamping block 3011, the clamping block 3011 is clamped in the inside of the snap-fit ​​opening 9, the second slide bar 308 is fixedly connected to one side of the upper rack 306, the inner width of the straight slot 3010 is consistent with the outer diameter of the fixed shaft 7, and the fixed shaft 7 runs through the middle of the straight slot 3010; the second slide rail 307 and the second slide bar 308 can cooperate to The upper rack 306 can slide along the direction of the second slide rail 307, thereby driving the top connecting rod 309 to rotate around the fixed axis 7, and when the connecting rod 309 rotates around the fixed axis 7, the motion trajectories of its two ends are arcs, and the upper rack 306 moves in a straight line along the second slide rail 307. In order to avoid interference, a straight groove is opened in the middle of the connecting rod 309 to enable the connecting rod 309 to be displaced to a certain extent. When the top end of the connecting rod 309 rotates, the clamping block 3011 at its end will be clamped into the snap-fitting opening 9 on the side of the shift device body 1 to fix the shift device body 1.

[0030] Embodiment 4

[0031] On the basis of the third embodiment, the locking assembly 10 includes a first spring 1001 fixedly connected to one side of the mounting seat 2, and the end of the first spring 1001 away from the mounting seat 2 is fixedly connected to the pull rod 1002, and one end of the pull rod 1002 passes through the interior of the mounting seat 2 and is connected to the arc plate 1003, and one side of the arc plate 1003 is fixedly connected to a plurality of fixed cylinders 1004, and the interior of the plurality of fixed cylinders 1004 is provided with a second spring 1005, and the end of the second spring 1005 away from the arc plate 1003 is fixedly connected There is a locking pin 1006; when the wedge block 305 is inserted into the wedge-shaped opening 8 and the clamping block 3011 is clamped into the inside of the snap-fit ​​opening 9, the force holding the pull rod 1002 is released. At this time, under the rebound action of the first spring 1001, the pull rod 1002 and the arc plate 1003 are driven to approach the secondary gear 502, so that the locking pin 1006 on the inner side of the arc plate 1003 contacts the teeth of the secondary gear 502, and the secondary gear 502 can be locked to prevent the fixation of the shift device body 1 from loosening during use and affecting the normal use of the mud pump.

[0032] Embodiment 5

[0033] On the basis of the fourth embodiment, the transmission assembly 5 includes a driving shaft 501 rotatably connected to the middle part of the rear wall of the mounting seat 2, and the driving shaft 501 extends to one end inside the mounting seat 2 and is fixedly connected to a sub-gear 502, and the sub-gear 502 is located between the upper rack 306 and the lower rack 303, and the sub-gear 502 is meshed with the upper rack 306 and the lower rack 303, and the middle part of the driving shaft 501 is fixedly connected to a main gear 503, and one side of the main gear 503 is meshed with a transmission gear 504, and the transmission gear 504 is rotatably connected to the outer wall of the mounting seat 2 through a connecting shaft, and the end of the connecting shaft away from the mounting seat 2 is fixedly connected to a main pulley 505, and the main pulley 505 is connected to the sub-pulley 506 through a transmission belt. The driving shaft 501 and the sub-gear 502 are a group, a total of The two groups of driving shafts 501, the driving shaft 501 close to the main gear 503 in the two groups is connected to the knob; the secondary gear 502 is driven to rotate by rotating the driving shaft 501 running through the middle of the main gear 503. The rotation of the secondary gear 502 will drive the upper rack 306 and the lower rack 303 meshing therewith to move away from each other, thereby finally driving the wedge block 305 and the clamping block 3011 to be inserted into the wedge-shaped opening 8 and the snap-fit ​​opening 9 respectively, to fix the shift device body 1, and with the cooperation of the main gear 503, the transmission gear 504, the primary pulley 505 and the secondary pulley 506, the two driving shafts 501 can rotate in opposite directions, thereby driving the fixing components 3 on both sides to move in a mirror image manner, and at the same time fixing the wedge-shaped opening 8 and the snap-fit ​​opening 9 on both sides of the shift device body 1.

[0034] In actual use, the shift device body 1 is placed in the placement frame 4, and then the transmission assembly 5 is used to drive the two groups of fixing assemblies 3 on both sides of the mounting seat 2 to move, and the shift device body 1 is fixed at the same time. The shift device body 1 can be quickly fixed without a large number of bolts, and the shift device body 1 can be quickly disassembled and assembled, which is convenient for later maintenance. After the fixation is completed, the locking assembly 10 is used to lock the fixing assembly 3 and the transmission assembly 5 to prevent the transmission assembly 5 from reversing, which would cause the fixation of the shift device body 1 to loosen, thereby further improving the stability of the installation of the shift device body 1.

[0035] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A manual shift device for a mud pump, characterized in that: The manual shifting device for a mud pump comprises a shifting device body (1), the shifting device body (1) is fixedly connected to the middle of a mounting seat (2), fixing components (3) are provided on both sides of the interior of the mounting seat (2), a placement frame (4) is provided in the middle of the inner bottom surface of the mounting seat (2), the fixing component (3) is connected to a transmission component (5), two rectangular openings (6) are provided on both sides of the top surface of the mounting seat (2), a fixing shaft (7) is fixedly connected inside the two rectangular openings (6), two wedge-shaped openings (8) and a buckle opening (9) are respectively provided on both sides of the shifting device body (1), and locking components (10) are provided on both sides of the mounting seat (2); The fixing assembly (3) comprises two first slide rails (301) fixedly connected to the inner bottom surface of the mounting seat (2) and a second slide rail (307) fixedly connected to one side of the mounting seat (2); the first slide rail (301) is internally slidably connected to a first slide bar (302); the first slide bar (302) is fixedly connected to the bottom surface of a lower rack (303); one end of the lower rack (303) close to the shift device body (1) is fixedly connected to a locking rod (304); two wedge blocks (305) are welded to one side of the locking rod (304) close to the shift device body (1); the two wedge blocks (305) are respectively inserted into the inside of the two wedge-shaped openings (8).

2. A manual shift device for a mud pump according to claim 1, characterized in that: The second slide rail (307) is internally slidably connected to a second slide bar (308), the top of the second slide bar (308) is hinged with a connecting rod (309), the middle of the connecting rod (309) is provided with a straight slot (3010), the top of the connecting rod (309) is fixedly connected to a snap-in block (3011), the snap-in block (3011) is snap-fitted into the inside of the snap-fit ​​opening (9), and the second slide bar (308) is fixedly connected to one side of the upper rack (306).

3. A manual shift device for a mud pump according to claim 2, characterized in that: The inner width of the straight slot (3010) is consistent with the outer diameter of the fixed shaft (7), and the fixed shaft (7) passes through the middle of the straight slot (3010).

4. A manual shift device for a mud pump according to claim 1, characterized in that: The locking assembly (10) comprises a first spring (1001) fixedly connected to one side of the mounting seat (2), one end of the first spring (1001) away from the mounting seat (2) is fixedly connected to a pull rod (1002), and one end of the pull rod (1002) passes through the interior of the mounting seat (2) and is connected to the arc plate (1003).

5. A manual shift device for a mud pump according to claim 4, characterized in that: A plurality of fixed cylinders (1004) are fixedly connected to one side of the arc-shaped plate (1003), a second spring (1005) is provided inside the plurality of fixed cylinders (1004), and a locking pin (1006) is fixedly connected to one end of the second spring (1005) away from the arc-shaped plate (1003).

6. A manual shift device for a mud pump according to claim 1, characterized in that: The transmission assembly (5) comprises a driving shaft (501) rotatably connected to the middle part of the rear wall of the mounting seat (2); one end of the driving shaft (501) extending to the inside of the mounting seat (2) is fixedly connected to a pinion gear (502); the pinion gear (502) is located between the upper rack (306) and the lower rack (303); and the pinion gear (502) is meshed with the upper rack (306) and the lower rack (303).

7. A manual shifting device for a mud pump according to claim 6, characterized in that: A main gear (503) is fixedly connected to the middle of the driving shaft (501), a transmission gear (504) is meshed with one side of the main gear (503), the transmission gear (504) is rotatably connected to the outer wall of the mounting seat (2) via a connecting shaft, and a main pulley (505) is fixedly connected to one end of the connecting shaft away from the mounting seat (2), and the main pulley (505) and the secondary pulley (506) are connected via a transmission belt.

8. A manual shift device for a mud pump according to claim 6, characterized in that: The driving shaft (501) and the secondary gear (502) form a group, with two groups in total. The driving shaft (501) close to the main gear (503) in the two groups of driving shafts (501) is connected to the knob.

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