Hydraulic oil pump connector screw assembly

Abstract

The utility model discloses a hydraulic oil pump connector screw assembly, belongs to the technical field of pipeline connecting pieces, and provides the hydraulic oil pump connector screw assembly more convenient to disassemble and assemble. The hydraulic oil pump connector screw assembly comprises a positive chuck and a negative chuck, the positive chuck is provided with a positive pressure ring, the end face of the positive pressure ring is provided with a positive end sleeve, and the negative chuck is provided with a negative pressure ring; the positive chuck and the negative chuck are connected through a plurality of rotary connecting pieces, each rotary connecting piece comprises an optical shaft which is suitable for being rotationally connected with the positive pressure ring, one end of each optical shaft is provided with a gear, the other end of each optical shaft is provided with a threaded rod, and the negative pressure ring is provided with an inner screw hole. The positive chuck and the negative chuck which can be arranged at the input and output ends of an external pipeline and a hydraulic oil pump in a sleeving mode are designed, the screwing piece is arranged on the positive chuck, and the screwing piece is synchronously driven by the rotating disc arranged outside the positive pressure ring in a sleeving mode, so that the threaded rod of the screwing piece can be synchronously screwed with the internal thread of the negative pressure ring; and the disassembly and assembly operation is quicker and more efficient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of pipe connectors, and particularly relates to a hydraulic oil pump connector screw rod assembly. BACKGROUND

[0002] When a hydraulic oil pump is connected with an external pipe, a connection disc structure with a larger diameter is usually needed at the end of the external pipe, and the connection disc structure is fixed by bolts. Since the size of the end of the bolt is small, a wrench is needed, and the wrench needs to be used to tighten each bolt multiple times every time the hydraulic oil pump is disassembled, so the disassembly operation is troublesome. SUMMARY

[0003] The present application aims to provide a hydraulic oil pump connector screw rod assembly which is more convenient to disassemble.

[0004] To achieve the above purpose, the present application provides a hydraulic oil pump connector screw rod assembly, which comprises a positive chuck and a negative chuck. The positive chuck is provided with a positive pressure ring, and the end face of the positive pressure ring is provided with a positive end sleeve. A pair of half moon chucks are arranged in the positive end sleeve and are adapted to directly contact the connection end of an external pipe. The negative chuck is provided with a negative pressure ring, and the end face of the negative pressure ring is provided with a negative end sleeve. A pair of half moon chucks are also arranged in the negative end sleeve and are adapted to directly contact the pipe connection end of a hydraulic oil pump. The positive chuck and the negative chuck are connected by a plurality of rotating joints. Each rotating joint comprises a light shaft which is adapted to be rotationally connected with the positive pressure ring. One end of the light shaft is provided with a gear, and the other end is provided with a threaded rod. The negative pressure ring is provided with an internal screw hole which is adapted to be threadedly connected with the threaded rod. The positive pressure ring is provided with a first rotating disc and a second rotating disc. The first rotating disc and the second rotating disc are fixed and are rotationally connected with the positive pressure ring. The first rotating disc is provided with an internal gear ring which is adapted to be engaged with all the gears and is used to synchronously drive all the rotating joints.

[0005] As a preferred form, the part of the positive pressure ring which is located outside the positive end sleeve is provided with a plurality of light holes which are equidistantly arranged around the shaft and are adapted to be matched with the light shaft to form a rotating pair. The number of the rotating joints corresponds to the number of the light holes, and the number of the internal screw holes corresponds to the number of the rotating joints, so that each rotating joint can exert a restraining force.

[0006] As a preferred form, the outer side surface of the positive pressure ring is provided with a limiting ring. One end of the internal gear ring is provided with a positive connection disc, and the other end is provided with a stop ring. A positive sliding groove is formed between the inner wall of the positive connection disc and the end face of the internal gear ring and is adapted to be matched with the limiting ring to form a rotating pair. The gear is located between the positive pressure ring and the stop ring. The outer side surface of the second rotating disc is provided with a negative connection disc. A negative sliding groove is formed between the inner wall of the negative connection disc and the second rotating disc and is adapted to be matched with the limiting ring to form a rotating pair. The rotating disc can rotate relative to each other while avoiding axial movement of the rotating disc.

[0007] As a preferred, the positive connection disc and the negative connection disc are fixedly connected through a connecting piece, the positive connection disc is provided with a plurality of first through holes arranged at equal distances around an axis, the negative connection disc is provided with a plurality of second through holes arranged at equal distances around an axis, the number and position of the second through holes correspond to the first through holes, and the connecting piece comprises a bolt and a nut, the bolt is matched with the nut after penetrating through the aligned first through hole and second through hole, and fastening connection is realized.

[0008] As a preferred, the gear has a coaxial end shaft at the end away from the threaded rod, and the outer side of the end shaft is adapted to contact the inner wall of the blocking ring to form a sliding pair, thereby improving the stability of the rotating joint relative to the positive chuck when rotating.

[0009] As a preferred, the two half-moon chucks form a complete ring, the inner wall of the half-moon chuck has a clearance groove, and the two clearance grooves of the two half-moon chucks forming the ring form a complete circular hole, which is adapted to engage with the outer wall of the cylindrical pipeline.

[0010] As a preferred, the two half-moon chucks in the positive end sleeve are adapted to abut against the end face of the positive pressure ring at the same time, and the circular hole formed by the two clearance grooves has a diameter smaller than the inner diameter of the positive pressure ring, allowing a larger end portion of the external pipeline to pass through the positive pressure ring, but not allowing the end portion of the external pipeline to pass through the circular hole formed between the half-moon chucks.

[0011] As a preferred, the two half-moon chucks in the negative end sleeve are adapted to abut against the end face of the negative pressure ring at the same time, and the circular hole formed by the two clearance grooves has a diameter smaller than the inner diameter of the negative pressure ring, allowing the input or output end of the hydraulic oil pump to pass through the negative pressure ring, but not allowing the input or output end to pass through the circular hole formed between the half-moon chucks.

[0012] Compared with the prior art, the application has the following advantages:

[0013] (1) By designing the positive and negative chucks that can be sleeved on the external pipeline and the input and output ends of the hydraulic oil pump, and setting a rotating joint on the positive chuck, the rotating disc sleeved outside the positive pressure ring is synchronously driven, so that the threaded rod of the rotating joint can be synchronously screwed with the internal threads of the negative pressure ring. Compared with the independent use of bolts, this design not only saves more labor, but also makes the disassembly and assembly operation more efficient.

[0014] (2) By reasonably designing the structure of the half-moon chuck, the positive and negative chucks can not only allow the external pipeline and the input and output ends of the hydraulic oil pump to pass through, but also provide extrusion force between the end portion of the external pipeline and the input and output ends of the hydraulic oil pump. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 Figure 1 is a first perspective view of the hydraulic oil pump connector screw assembly.

[0016] Figure 2 Figure 2 is a second perspective view of the hydraulic oil pump connector screw assembly.

[0017] Figure 3 Figure 3 is a first perspective view of the screw joint of the hydraulic oil pump connector screw assembly cooperating with the positive chuck through the rotating disc.

[0018] Figure 4 Figure 4 is a second perspective view of the screw joint of the hydraulic oil pump connector screw assembly cooperating with the positive chuck through the rotating disc.

[0019] Figure 5 Figure 5 is a perspective view of the positive chuck of the hydraulic oil pump connector screw assembly.

[0020] Figure 6 Figure 6 is a perspective view of the screw joint of the hydraulic oil pump connector screw assembly.

[0021] Figure 7 Figure 7 is a perspective view of the first rotating disc of the hydraulic oil pump connector screw assembly.

[0022] Figure 8 Figure 8 is a perspective view of the second rotating disc of the hydraulic oil pump connector screw assembly.

[0023] Figure 9 Figure 9 is a perspective view of the half-moon chuck of the hydraulic oil pump connector screw assembly arranged in the negative chuck.

[0024] Figure 10 Figure 10 is a perspective view of the half-moon chuck of the hydraulic oil pump connector screw assembly.

[0025] In the figure: 1, positive chuck; 101, positive pressure ring; 102, positive end sleeve; 103, limiting ring; 104, light hole; 2, negative chuck; 201, negative pressure ring; 202, negative end sleeve; 203, internal screw hole; 3, first rotating disc; 301, inner tooth ring; 302, positive connecting disc; 303, positive sliding groove; 304, first through hole; 305, blocking ring; 4, second rotating disc; 401, negative sliding groove; 402, negative connecting disc; 403, second through hole; 5, screw joint; 501, light shaft; 502, gear; 503, threaded rod; 504, end shaft; 6, half-moon chuck; 601, accommodation groove; 7, connecting piece; 701, bolt; 702, nut. DETAILED DESCRIPTION

[0026] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] In the description of this application, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. They should not be construed as limiting the specific protection scope of this application.

[0028] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0029] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0030] like Figures 1-10 The hydraulic pump connector screw assembly shown includes a positive chuck 1 and a negative chuck 2, used to clamp the input or output end of the hydraulic pump to the end of an external pipeline. The positive chuck 1 has a positive pressure ring 101, and the end face of the positive pressure ring 101 has a positive end sleeve 102. The positive end sleeve 102 needs to be aligned with the negative chuck 2 during installation. A pair of crescent chucks 6 are provided inside the positive end sleeve 102. In fact, the two crescent chucks 6 form a complete ring, and the inner wall of the crescent chucks 6 has... With the relief groove 601, the two relief grooves 601 of the two crescent chucks 6 forming the annulus will form a complete circular hole, which is fitted onto the cylindrical tube body. When installing the hydraulic oil pump and the external pipeline, the two crescent chucks 6 located inside the positive end sleeve 102 will simultaneously abut against the end face of the positive pressure ring 101 to obtain the compressive force. The diameter of the circular hole formed by the two relief grooves 601 is smaller than the inner diameter of the positive pressure ring 101, and it is usually used for direct contact with the connection end of the external pipeline.

[0031] The reverse chuck 2 has a reverse pressure ring 201, and the end face of the reverse pressure ring 201 has a reverse end sleeve 202. When installing, the reverse end sleeve 202 needs to be aligned with the forward chuck 1. The reverse end sleeve 202 also has a pair of crescent chucks 6. When installing the hydraulic oil pump and the external pipeline, the two crescent chucks 6 located in the reverse end sleeve 202 will also simultaneously abut against the end face of the reverse pressure ring 201 to obtain the squeezing force. The diameter of the circular hole formed by the two relief grooves 601 is also smaller than the inner diameter of the reverse pressure ring 201, which is usually used to directly contact the pipe connection end of the hydraulic oil pump.

[0032] The positive chuck 1 and the negative chuck 2 are connected by several screw connectors 5. The screw connectors 5 change the distance between the positive chuck 1 and the negative chuck 2 by rotating. Each screw connector 5 includes an optical shaft 501, which is used to rotate with the positive pressure ring 101. In order to achieve the rotational connection, the positive pressure ring 101 has several optical holes 104 arranged equidistantly around the axis in the part outside the positive end sleeve 102. The optical holes 104 are used for the threaded rod 503 and the optical shaft 501 to pass through and cooperate with the optical shaft 501 to form a rotating pair. The number of screw connectors 5 corresponds to the number of optical holes 104 to ensure that each screw connector 5 can cooperate with the positive pressure ring 101.

[0033] One end of the optical shaft 501 has a gear 502 and the other end has a threaded rod 503. Both the gear 502 and the threaded rod 503 are coaxial with the optical shaft 501. The counter-pressure ring 201 has an internal threaded hole 203 for threaded engagement with the threaded rod 503. The number of internal threaded holes 203 also corresponds to the number of screw-in parts 5. Furthermore, the direction of rotation and pitch of the external thread of each threaded rod 503 are consistent, ensuring that each screw-in part 5 can apply a constraint force.

[0034] The positive pressure ring 101 is fitted with a first rotating disk 3 and a second rotating disk 4. The first rotating disk 3 and the second rotating disk 4 are fixed together and simultaneously rotate with the positive pressure ring 101. Specifically, the first rotating disk 3 has an internal gear ring 301 for meshing with all gears 502. The outer surface of the positive pressure ring 101 has a limiting ring 103. One end of the internal gear ring 301 has a positive connecting disk 302 and the other end has a retaining ring 305. A positive sliding groove 303 is formed between the inner wall of the positive connecting disk 302 and the end face of the internal gear ring 301, which fits perfectly with the limiting ring 103. The gear 502 is located between the positive pressure ring 101 and the retaining ring 305. The outer side of the second rotating disk 4 has a reverse connecting disk 402. The inner wall of the reverse connecting disk 402 and the second rotating disk 4 form a reverse sliding groove 401, which fits perfectly with the limiting ring 103 and forms a rotating pair. The end of the gear 502 facing away from the threaded rod 503 also has a coaxial end shaft 504. The outer side of the end shaft 504 can contact the inner wall of the retaining ring 305 and form a sliding pair, which can improve the smoothness of the rotating part 5 when rotating relative to the positive pressure ring 101.

[0035] The connecting piece 7 is fixedly connected between the positive connecting disc 302 and the negative connecting disc 402, so that the first rotating disc 3 and the second rotating disc 4 can inhibit the rotating joint 5 from moving relative to the positive pressure ring 101. The positive connecting disc 302 is provided with a plurality of first through holes 304 arranged at equal distances around the shaft. The negative connecting disc 402 is provided with a plurality of second through holes 403 arranged at equal distances around the shaft. The number and positions of the second through holes 403 correspond to those of the first through holes 304. The number of the connecting pieces 7 corresponds to that of the first through holes 304 and the second through holes 403. The connecting piece 7 comprises a bolt 701 and a nut 702. The bolt 701 is cooperated with the nut 702 after penetrating through the aligned first through hole 304 and the second through hole 403, so as to realize fastening connection.

[0036] Working principle: Before use, first debug the screw rod assembly, place the positive chuck 1 and the negative chuck 2 horizontally, and make the threaded rods 503 of all the rotating joints 5 pass through the light hole 104 and be screwed with the internal screw hole 203. When the end shafts 504 of all the rotating joints 5 are aligned, use the second rotating disc 4 to lift the positive chuck 1 until the gear 502 contacts the end surface of the positive pressure ring 101 away from the positive end sleeve 102. Then, buckle the second rotating disc 4 to tightly contact the first rotating disc 3, and use the connecting piece 7 to fix and constrain. At this time, the positions of all the rotating joints 5 on the positive chuck 1 will not change any more, and they will be driven to rotate synchronously by the internal tooth ring 301. Rotating the connected rotating disc is to make all the threaded rods 503 separate from the negative chuck 2, so that the positive chuck 1 and the negative chuck 2 are separated into two independent parts.

[0037] When in use, make the end of the external pipeline pass through the positive pressure ring 101, then take out the two half-moon chucks 6 and put them outside the external pipeline, and slide them into the positive end sleeve 102. Make the input or output end of the hydraulic oil pump pass through the negative pressure ring 201, then take out the two half-moon chucks 6 and put them outside the extension pipe of the input or output end. Then make the positive chuck 1 and the negative chuck 2 close to each other, and under the pushing of the two groups of half-moon chucks 6, the end of the external pipeline and the input or output end of the hydraulic oil pump are butt-jointed. Then rotate the first rotating disc 3 and the second rotating disc 4 connected as a whole, make all the threaded rods 503 be screwed with the internal screw holes 203 on the negative pressure ring 201, and until the end of the external pipeline and the input or output end of the hydraulic oil pump are tightly crimped together. When it is needed to remove the external pipeline, only need to rotate the first rotating disc 3 and the second rotating disc 4 connected as a whole in reverse direction. Since the diameter of the rotating disc is much larger than that of the gear 502, it is not necessary to use a wrench tool, and it can be easily rotated in reverse direction by hand, so that the positive chuck 1 and the negative chuck 2 move away from each other, and thus the external pipeline can be easily separated from the input or output end of the hydraulic oil pump.

[0038] The foregoing describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-described embodiments, and the above-described embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A hydraulic oil pump connector screw assembly, characterized in that: The system includes a positive chuck (1) and a negative chuck (2). The positive chuck (1) has a positive pressure ring (101), and the end face of the positive pressure ring (101) has a positive end sleeve (102). A pair of crescent chucks (6) are provided inside the positive end sleeve (102), which is suitable for direct contact with the connection end of an external pipeline. The negative chuck (2) has a negative pressure ring (201), and the end face of the negative pressure ring (201) has a negative end sleeve (202). A pair of crescent chucks (6) are also provided inside the negative end sleeve (202), which is suitable for direct contact with the pipe connection end of a hydraulic oil pump. The positive chuck (1) and the negative chuck (2) are connected by several screw connectors (5). Each screw connector (5) All of them include an optical axis (501), which is adapted to be rotatably connected to the positive pressure ring (101). One end of the optical axis (501) has a gear (502) and the other end has a threaded rod (503). The negative pressure ring (201) has an internal threaded hole (203) adapted to be threadedly engaged with the threaded rod (503). The positive pressure ring (101) is covered with a first rotating disk (3) and a second rotating disk (4). The first rotating disk (3) and the second rotating disk (4) are fixed together and simultaneously rotate with the positive pressure ring (101). The first rotating disk (3) has an internal toothed ring (301) adapted to mesh with all of the gears (502).

2. The hydraulic pump connector screw assembly as described in claim 1, characterized in that: The positive pressure ring (101) outside the positive end sleeve (102) has a plurality of optical holes (104) arranged equidistantly around the axis, which are suitable for cooperating with the optical axis (501) to form a rotating pair. The number of the screw connectors (5) corresponds to the number of the optical holes (104), and the number of the internal screw holes (203) corresponds to the number of the screw connectors (5).

3. The hydraulic pump connector screw assembly as described in claim 2, characterized in that: The outer surface of the positive pressure ring (101) has a limiting ring (103). One end of the internal gear ring (301) has a positive connecting plate (302) and the other end has a retaining ring (305). A positive sliding groove (303) is formed between the inner wall of the positive connecting plate (302) and the end face of the internal gear ring (301), which is suitable for engaging with the limiting ring (103) to form a rotating pair. The gear (502) is located between the positive pressure ring (101) and the retaining ring (305). The outer surface of the second rotating disk (4) has a reverse connecting plate (402). A reverse sliding groove (401) is formed between the inner wall of the reverse connecting plate (402) and the second rotating disk (4), which is suitable for engaging with the limiting ring (103) to form a rotating pair.

4. The hydraulic pump connector screw assembly as described in claim 3, characterized in that: The positive connecting plate (302) and the negative connecting plate (402) are fixedly connected by a connector (7). The positive connecting plate (302) has a plurality of first through holes (304) arranged equidistantly around an axis. The negative connecting plate (402) has a plurality of second through holes (403) arranged equidistantly around an axis. The number and position of the second through holes (403) correspond to the first through holes (304). The connector (7) includes a bolt (701) and a nut (702). The bolt (701) passes through the aligned first through holes (304) and second through holes (403) and then engages with the nut (702).

5. The hydraulic pump connector screw assembly as described in claim 4, characterized in that: The gear (502) also has a coaxial end shaft (504) at the end opposite to the threaded rod (503), and the outer surface of the end shaft (504) is adapted to contact the inner wall of the retaining ring (305) to form a sliding pair.

6. The hydraulic pump connector screw assembly as described in any one of claims 1 to 5, characterized in that: The two crescent chucks (6) form a complete ring, and the inner wall of the crescent chuck (6) has a relief groove (601). The two relief grooves (601) of the two crescent chucks (6) forming the ring form a complete circular hole.

7. The hydraulic pump connector screw assembly as described in claim 6, characterized in that: The two crescent chucks (6) located inside the positive end sleeve (102) are adapted to simultaneously abut against the end face of the positive pressure ring (101), and the diameter of the circular hole formed by the two relief grooves (601) is smaller than the inner diameter of the positive pressure ring (101).

8. The hydraulic pump connector screw assembly as described in claim 6, characterized in that: The two crescent chucks (6) located inside the reverse end sleeve (202) are adapted to simultaneously abut against the end face of the reverse pressure ring (201), and the diameter of the circular hole formed by the two relief grooves (601) is smaller than the inner diameter of the reverse pressure ring (201).

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