Wear-resistant plunger reset type assembly

Abstract

The utility model discloses a wear-resisting plunger reset type assembly which comprises a hexagon bolt, a flat head nut is arranged on the side wall of the hexagon bolt, a threaded hole is formed in the center of the side wall of the flat head nut, a plurality of wear-resisting assemblies are fixedly connected to the surface of the hexagon bolt in a circular array mode, and a limiting rod is detachably installed in the threaded hole. According to the scheme, the plunger reset type assembly is provided with the anti-abrasion assembly, when other assemblies are about to make contact with a hexagon bolt, the anti-abrasion assembly arranged on the surface of the hexagon bolt can work at the moment, and then the pressure-resistant protection plate can replace the hexagon bolt to make contact with other assemblies; the pressure-resistant protection plate is arranged on the surface of the hexagonal bolt, the external force borne by the hexagonal bolt is transmitted to the limiting telescopic rod and the buffer spring, the external force borne by the hexagonal bolt can be reduced under the action of the buffer spring, the pressure-resistant protection plate is arranged on the surface of the hexagonal bolt, and therefore the phenomenon that the hexagonal bolt directly makes contact with other assemblies cannot be caused, and losses are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to plunger reset type assembly technical field, more specifically, the utility model relates to a kind of wear-resistant plunger reset type assembly. BACKGROUND

[0002] Plunger pump is an important device of hydraulic system;It relies on plunger reciprocating in cylinder, so that the volume of sealed working cavity changes to realize oil absorption, oil pressing;Plunger reset type assembly is the part used to reset inside plunger pump.

[0003] As disclosed in CN219366297U, a cylinder body assembly of plunger pump, the technical scheme is as follows: including cylinder body shell, the cylinder body shell plays a fixed support role;The cylinder body shell further includes outer cavity and inner cavity;Oil suction port, the oil suction port is located below the cylinder body shell;Oil outlet, the oil outlet is located above the cylinder body shell;Piston, the piston is located in the inner cavity, connected with the power end of plunger pump, for oil absorption and oil discharge;Filter system, the filter system is located in the outer cavity, for filtering and cleaning the oil flowing into the plunger pump;Under the action of oil suction valve and oil discharge valve, oil enters the pipe body from the oil suction port and is discharged, and the excess debris is retained on the surface of the filter cartridge. The utility model solves the problem that the plunger pump cylinder body itself does not design oil filtering structure, and the oil from the pipeline into the inside of the plunger pump may still carry new impurities, causing wear and tear to the inside of the cylinder body. In the working condition of oil absorption and oil discharge, the effect of filtering impurities in the cylinder body itself is realized again.

[0004] The above-mentioned wear-resistant plunger reset type assembly also has some shortcomings: since the plunger reset type assembly does not have the wear-resistant function, once the plunger reset type assembly is extruded by external force, the plunger reset type assembly will be worn, thereby increasing the maintenance cost. UTILITY MODEL CONTENTS

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiment of the utility model provides a wear-resistant plunger reset type assembly, by setting the anti-wear component, when other components are about to contact with the hexagonal bolt, the anti-wear component set on the surface of the hexagonal bolt will work at this time, then the pressure-resistant protective plate will replace the hexagonal bolt to contact with other components, and the external force received will be transmitted to the limiting telescopic rod and the buffer spring, under the action of the buffer spring, the size of the external force received by the hexagonal bolt will be reduced, because the pressure-resistant protective plate is set on the surface of the hexagonal bolt, so it will not cause the phenomenon that the hexagonal bolt directly contacts with other components, thereby reducing the loss, to solve the problems existing in the prior art.

[0006] To solve the above technical problems, the utility model provides technical scheme as follows: A kind of wear-resistant plunger reset type combination, including hexagon bolt, the side wall of the hexagon bolt is provided with flat head nut, the center of the side wall of the flat head nut is equipped with threaded hole, the surface of the hexagon bolt is fixedly connected with multiple anti-abrasion components with circular array, limit rod is detachably installed in the inside of the threaded hole, the one end of the limit rod is equipped with external thread, reset spring is fixedly sleeved on the surface of the limit rod, the other end of the limit rod is fixedly connected with limit disc, the center of the side wall of the limit disc is fixedly connected with screw.

[0007] Wherein, the surface of the external thread is adapted to the inside of the threaded hole, the depth of the threaded hole is less than the length of the external thread.

[0008] Wherein, the anti-abrasion component includes first connecting disc and limit telescopic rod, the center of the back of the first connecting disc is fixedly connected with limit telescopic rod.

[0009] Wherein, the surface of the limit telescopic rod is fixedly sleeved with buffer spring, the one end of the buffer spring is fixedly connected with second connecting disc.

[0010] Wherein, the back of the second connecting disc is fixedly connected with pressure-resistant protective plate, the number of the pressure-resistant protective plate is six.

[0011] Wherein, the front of the first connecting disc is connected with the surface of hexagon bolt, the cross-sectional area of the first connecting disc is same with the cross-sectional area of second connecting disc.

[0012] Wherein, the extension length of the buffer spring is less than the extension length of reset spring, the number of the buffer spring is several, several buffer springs are equally divided into six groups.

[0013] The beneficial effects of the above technical scheme of the utility model are as follows:

[0014] 1, in the above scheme, the plunger reset type combination is provided with anti-abrasion component, when other components are about to contact with hexagon bolt, anti-abrasion component arranged on the surface of hexagon bolt works at this time, then pressure-resistant protective plate will replace hexagon bolt and other components contact, and the external force received is transmitted to limit telescopic rod and buffer spring, under the action of buffer spring, the external force received by hexagon bolt is reduced, because pressure-resistant protective plate is arranged on the surface of hexagon bolt, so it does not cause the phenomenon that hexagon bolt directly contacts with other components, thereby reducing loss.

[0015] 2、The plunger reset type assembly is provided with a threaded hole and an external thread, when it is necessary to disassemble the parts of the assembly, the parts can be disassembled by rotating the flat head nut, the flat head nut and the limiting rod are disassembled along with the rotation of the flat head nut because the external thread is matched with the internal threaded hole, and therefore the practicability of the device is enhanced. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 It is an overall structure schematic view of the utility model;

[0017] Fig. 2 It is an overall structure split schematic view of the utility model;

[0018] Fig. 3 It is a wear-resistant assembly split schematic view of the utility model.

[0019] [REFERENCE SIGNS]

[0020] 1, hexagonal bolt; 2, flat head nut; 3, threaded hole; 4, wear-resistant assembly; 5, limiting rod; 6, external thread; 7, reset spring; 8, limiting disc; 9, screw; 41, first connecting disc; 42, limiting telescopic rod; 43, buffer spring; 44, second connecting disc; 45, pressure-resistant protective plate. DETAILED DESCRIPTION

[0021] In order to make the technical problems, technical schemes and advantages to be solved by the utility model more clear, the following will be described in detail in combination with the drawings and specific embodiments.

[0022] Embodiment 1:

[0023] Please refer to Figs. 1-3 A wear-resistant plunger reset type assembly, including hexagonal bolt 1, the side wall of hexagonal bolt 1 is provided with flat head nut 2, the center of the side wall of flat head nut 2 is provided with threaded hole 3, the surface of hexagonal bolt 1 is fixedly connected with a plurality of wear-resistant assemblies 4 in circular array, the inside of threaded hole 3 is detachably installed with limiting rod 5, one end of limiting rod 5 is provided with external thread 6, the surface of limiting rod 5 is fixedly sleeved with reset spring 7, the other end of limiting rod 5 is fixedly connected with limiting disc 8, the center of the side wall of limiting disc 8 is fixedly connected with screw 9;

[0024] The surface of the external thread 6 is matched with the inside of the threaded hole 3, the depth of the threaded hole 3 is less than the length of the external thread 6, the anti-abrasion assembly 4 comprises a first connecting disc 41 and a limiting telescopic rod 42, the limiting telescopic rod 42 is fixedly connected at the center of the back surface of the first connecting disc 41, the surface of the limiting telescopic rod 42 is fixedly sleeved with a buffer spring 43, one end of the buffer spring 43 is fixedly connected with a second connecting disc 44, the back surface of the second connecting disc 44 is fixedly connected with a pressure-resistant protective plate 45, the number of the pressure-resistant protective plates 45 is six, the front surface of the first connecting disc 41 is connected with the surface of the hexagonal bolt 1, the cross-sectional area of the first connecting disc 41 is same as the cross-sectional area of the second connecting disc 44, the extension length of the buffer spring 43 is less than the extension length of the return spring 7, and the number of the buffer springs 43 is several, and the several buffer springs 43 are equally divided into six groups.

[0025] Beneficial: through the setting of the limiting telescopic rod 42, the movement track of the buffer spring 43 can be ensured not to be changed when the buffer spring 43 works, thereby enhancing the practicability of the device.

[0026] The working process of the utility model is as follows:

[0027] When the plunger reset type combined assembly is used, in order to reduce the use cost, the anti-abrasion assembly 4 is arranged, when other assemblies are about to contact the hexagonal bolt 1, the anti-abrasion assembly 4 arranged on the surface of the hexagonal bolt 1 works, then the pressure-resistant protective plate 45 replaces the hexagonal bolt 1 to contact other assemblies, and the external force received is transmitted to the limiting telescopic rod 42 and the buffer spring 43, under the action of the buffer spring 43, the external force received by the hexagonal bolt 1 is reduced, because the pressure-resistant protective plate 45 is arranged on the surface of the hexagonal bolt 1, so the hexagonal bolt 1 does not directly contact other assemblies, thereby reducing the loss.

[0028] The above scheme, when the plunger reset type combined assembly is used, in order to facilitate the disassembly of the combined assembly, the threaded hole 3 and the external thread 6 are arranged, when the parts of the combined assembly need to be disassembled, the flat head nut 2 is only needed to be held and rotated, so that the parts can be disassembled, because the external thread 6 is matched with the inside of the threaded hole 3, so the flat head nut 2 can be disassembled with the limiting rod 5 along with the rotation of the flat head nut 2, thereby enhancing the practicability of the device.

[0029] Finally should be explained a few points is: first, in the description of the present application, it should be pointed out that, unless otherwise specified and limited, the term "installation", "connected", "connection" should be broad, can be mechanical or electrical connection, but also can be two elements inside the communication, can be directly connected, "up", "down", "left", "right" and so on, only for indicating the relative position relationship, when the absolute position of the described object changes, the relative position relationship may change;

[0030] Second: the utility model discloses the embodiment in the drawing, only relate to the structure involved in the embodiment of the present disclosure, other structures can refer to the usual design, under the condition of not conflicting, the same embodiment and different embodiments of the utility model can be combined with each other;

[0031] Finally: the above only for the preferred embodiment of the utility model has, and does not for limiting the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A wear resistant plunger reset type assembly comprising a hexagonal bolt (1), characterized in that, The side wall of the hexagonal bolt (1) is provided with a flat head nut (2), a threaded hole (3) is formed in the center of the side wall of the flat head nut (2), the surface of the hexagonal bolt (1) is fixedly connected with a plurality of anti-wear components (4) in a circular array, a limiting rod (5) is detachably installed in the inside of the threaded hole (3), an external thread (6) is formed in one end of the limiting rod (5), a reset spring (7) is fixedly sleeved on the surface of the limiting rod (5), and a limiting disc (8) is fixedly connected to the other end of the limiting rod (5). The limiting disc (8) is fixedly connected with a screw (9) at the center of the side wall.

2. The wear resistant plunger reset type assembly of claim 1, wherein, The surface of the external thread (6) is matched with the inside of the threaded hole (3), and the depth of the threaded hole (3) is smaller than the length of the external thread (6).

3. The wear resistant plunger reset type assembly of claim 1, wherein, The anti-wear component (4) comprises a first connecting disc (41) and a limiting telescopic rod (42), and the center of the back surface of the first connecting disc (41) is fixedly connected with the limiting telescopic rod (42).

4. The wear resistant plunger reset type assembly of claim 3, wherein, The surface of the limiting telescopic rod (42) is fixedly sleeved with a buffer spring (43), and one end of the buffer spring (43) is fixedly connected with a second connecting disc (44).

5. The wear resistant plunger reset type assembly of claim 4, wherein, The back surface of the second connecting disc (44) is fixedly connected with a pressure-resistant protective plate (45), and the number of the pressure-resistant protective plates (45) is six.

6. The wear resistant plunger reset type assembly of claim 3, wherein, The front surface of the first connecting disc (41) is connected with the surface of the hexagonal bolt (1), and the cross-sectional area of the first connecting disc (41) is the same as that of the second connecting disc (44).

7. The wear resistant plunger reset type assembly of claim 4, wherein, The extension length of the buffer spring (43) is smaller than that of the reset spring (7), and the number of the buffer springs (43) is several, and the several buffer springs (43) are equally divided into six groups.

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