Quick assembly device for floating spool of threaded cartridge valve

Abstract

The invention relates to a hydraulic valve core processing equipment. The floating valve core fast assembly device of the threaded plug-in valve comprises a rectangular base plate, a pair of baffle plates which are vertically inserted into the long slots of the base plate, a strip hole is opened on one of the baffle plates, a pair of track blocks whose front ends are provided with track slots and are inserted into the strip holes of the baffle plates, the tail parts are connected by a movable connecting plate, a pair of floating pressure heads which are arranged on the track blocks and are fixed on the track blocks by a floating pressure head carrier, a pair of tile-shaped valve core inner linings which are spliced on the outer side of the valve core, a cylindrical valve core outer sleeve, an adjusting plunger is arranged on the top of the valve core, an adjusting seat is arranged on the adjusting plunger, the adjusting plunger is connected with the adjusting seat by the vertical adjusting bolt and the top of the adjusting plunger, and a safety protection cover is arranged on the top of the valve core, the inner lining and the outer sleeve of the valve core are upwardly extended and covered on the base plate and the baffle plate. The invention saves a large number of manual assembly processes and is protected by the metal protection cover and the assembly process guarantee.

Description

Technical Field

[0001] This invention relates to hydraulic valve cores, and more particularly to a floating valve core processing and assembly equipment for threaded cartridge valves. Background Technology

[0002] Threaded cartridge valves are the most widely used, most diverse, and most complex hydraulic control components in the hydraulic industry, characterized by their precise and compact structure and small overall size. Their development abroad is already very mature, occupying a large market share in hydraulic system control components for engineering machinery and other fields both domestically and internationally, making them extremely important.

[0003] In recent years, the research and development and manufacturing of threaded cartridge valves in China have also developed rapidly, with a gradual enrichment of varieties and functions. However, there are still some gaps in their production, manufacturing, and assembly processes compared to mature foreign products. The floating valve core structure is an important and complex high-precision valve core structure in threaded cartridge valves, playing a decisive role in the overall performance of the valve. This floating valve core consists of 7 parts, including a protective round wire spring and an elastic retaining ring. Traditional manual assembly requires the use of a general-purpose bench vise to manually press each elastic part. During assembly, the elastic parts are prone to flying out, posing a risk of injury. Even skilled operators have a low success rate in assembly. In addition, the round wire spring needs to be pressed together with a vise during assembly, which reduces the performance of the round wire spring. The operation process can also easily scratch the hydraulic sealing surface of the floating valve core, which has a roughness of Ra0.4, reducing the performance and durability of the floating valve core.

[0004] With the increasing variety of floating valve core products and the demand for mass production, traditional manual assembly can no longer meet the requirements for product performance stability and yield efficiency, and there is also a lack of safety protection for operators during the assembly process. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned shortcomings and provide a rapid assembly device for a floating valve core product of a threaded cartridge valve. This invention saves a significant number of manual assembly steps, provides metal protective covers to prevent spring-type parts from flying out during assembly, and ensures assembly process stability, thus supporting the performance stability of mass-produced products.

[0006] This invention is implemented as follows: a quick assembly device for a floating valve core of a threaded cartridge valve, comprising:

[0007] A base plate, which is a rectangular piece, has long grooves on two long sides and a hole in the middle for fixing the valve core;

[0008] A pair of baffles are inserted vertically into the long groove of the base plate, with a strip-shaped hole on one of the baffles;

[0009] A pair of track blocks, whose front ends are provided with track slots and are horizontally inserted into the strip holes of the baffle, and whose tail ends are connected by a movable connecting plate;

[0010] A pair of floating pressure heads, which are arranged on the track blocks and are respectively fixed to the track slots of the track blocks by a floating pressure head carrier;

[0011] A valve core lining, which is provided with a pair of tiles and is combined to the outside of the valve core;

[0012] A valve core sleeve, which is a cylinder and is sleeved outside the valve core lining, and the valve core top is provided with an adjusting plunger, the adjusting plunger is covered by an adjusting seat, and the adjusting plunger top is connected by a vertically arranged adjusting bolt;

[0013] A safety protection cover, which is provided with a hole at the top for the valve core, the lining and the sleeve to extend upward and cover the bottom plate and the baffle.

[0014] The quick assembly device of the floating valve core of the threaded plug-in valve, the valve core includes two floating valve cores arranged in upper and lower positions and connected by a valve core connecting rod, and a round wire spring and an elastic retainer ring are respectively arranged on each floating valve core.

[0015] The quick assembly device of the floating valve core of the threaded plug-in valve, characterized in that a handle is arranged on the movable connecting plate.

[0016] The invention adopts a symmetrical structure, which is simple, clear, easy to manufacture and use; core components are precisely machined and assembled by CNC, a centering machine, vacuum heat treatment, cylindrical grinding, internal hole honing and other machining processes, and the whole machining process ensures the functional accuracy and use durability of the invention device, and the hydraulic sealing surface of the floating valve core product is precisely matched and specially protected. The invention upgrades and optimizes the structure and assembly process of the floating valve core of the threaded plug-in valve, standardizes the assembly process, saves a large number of manual assembly steps, protects the flying spring parts during assembly by a metal protection cover, and guarantees the assembly process, supports the performance stability of the product batch production, and forms a practical basis for future large-scale automatic assembly of products. BRIEF DESCRIPTION OF DRAWINGS

[0017] The invention will be further described below with reference to the accompanying drawings:

[0018] Fig. 1 is the working state explosion diagram of the invention;

[0019] Fig. 2 is the schematic diagram of the working state appearance of the invention;

[0020] Fig. 3 is the explosion diagram of the invention. DETAILED DESCRIPTION

[0021] As Figs. 1-3 shown in the figure, the figure, the figure, 1 is an elastic retainer, a total of two; 2 is a floating spool, a total of 2, 3 is a valve connecting rod, 4 is a round spring, a total of 2; the device can quickly assemble the above floating spool product structure, avoid the original manual assembly above the failure risk. 5 is an adjusting plunger, 8 is an adjusting seat, 7 is a valve sleeve, 6 is a valve liner, 2, 9 is an adjusting bolt, 10 is a floating pressure head, 2, 11 is a valve positioning block, 12 is a push-pull groove baffle, 2, 13 is a track block, 2, 14 is a movable connecting plate, 15 is a fixed height stud, 16 is a handle, 17 is a floating pressure head carrier, 18 is a bottom plate, 19 is a safety cover.

[0022] The invention is realized as follows, the floating type valve core of the threaded plug-in valve is quickly assembled device, it includes:

[0023] A bottom plate, it is a rectangular piece, two long sides are provided with long grooves and the middle part is provided with a hole for fixing the valve core;

[0024] A pair of baffle plates, respectively uprightly inserted into the long grooves of the bottom plate, a strip-shaped hole is opened on one of the baffle plates;

[0025] A pair of track blocks, the front ends of which are provided with track grooves and horizontally inserted into the strip-shaped hole of the baffle plate, and the tail parts are connected by a movable connecting plate;

[0026] A pair of floating pressure heads, which are arranged on the track blocks and respectively fixed to the track grooves of the track blocks by a floating pressure head carrier;

[0027] Valve core lining, which is a pair of tile-shaped workpieces, combined on the outside of the valve core;

[0028] Valve sleeve, which is a cylindrical shape, sleeved on the outside of the valve core lining, the top of the valve core is provided with an adjusting plunger, the adjusting plunger is covered with an adjusting seat, and the adjusting plunger is connected with the adjusting seat by a vertically arranged adjusting bolt and the top of the adjusting plunger;

[0029] Safety cover, which is provided with a hole at the top for the valve core, its lining and sleeve to extend upward and cover the bottom plate and the baffle plate.

[0030] The floating type valve core of the threaded plug-in valve is quickly assembled device, the valve core includes two floating valve cores arranged in upper and lower positions and connected by a valve connecting rod, and each floating valve core is respectively provided with a round spring and an elastic retainer.

[0031] The floating type valve core of the threaded plug-in valve is quickly assembled device, the movable connecting plate 14 is provided with a handle 16.

[0032] The use method is as follows:

[0033] The lower floating valve core 2 and the elastic check ring 1 of the product are first installed into the valve core positioning block 11, then the round wire spring 4 and the valve core connecting rod 3 are installed on the product, so that the lower part of the product is completely installed into the device, then the same product is installed into the valve core lining 6, the valve core outer sleeve 7 is sleeved, the adjusting plunger 5 is installed, and then the adjusting bolt 9 on the adjusting seat 8 is used to compress the upper round wire spring 4 of the product to a fixed position, and the whole upper mechanism is placed on the valve core connecting rod 3 of the lower product, at this time, the whole floating valve core is completely installed into the device, the upper mechanism is pressed vertically downward by the left hand with a slight force of about 30N, and at the same time, the right hand pushes the handle 18 forward with a pushing force of about 50N, so that the assembly of the floating valve core structure of the threaded cartridge valve is completed; the handle 18 is reset, the adjusting bolt 9 is loosened, the adjusting seat 8 is radially cut open, and the valve core outer sleeve 7 is axially loosened, so that the complete floating valve core structure of the threaded cartridge valve is obtained.

[0034] The device structure type and the operation method can realize the quick and stable assembly of the floating valve core of the threaded cartridge valve, effectively solve the assembly difficulty and the production capacity bottleneck of the related product production and research and development manufacturing units, and form actual basis and process reference for large-scale automatic batch production and assembly of the floating valve core.

Claims

1. Quick assembly device for floating spool of threaded cartridge valve, characterized by, It comprises: a bottom plate, which is a rectangular piece with long slots on both long sides and a hole for fixing the valve core in the middle; a pair of baffle plates, which are respectively inserted into the long slots of the bottom plate vertically, and a strip hole is opened on one of the baffle plates; a pair of track blocks, which have track slots opened on the front ends and are horizontally inserted into the strip hole of the baffle plate, and the tail parts are connected by a movable connecting plate; a pair of floating pressure heads, which are arranged on the track blocks and are respectively fixed on the track slots of the track blocks by a floating pressure head carrier; a valve core lining, which is a pair of tile-shaped pieces and is combined on the outside of the valve core; a valve core sleeve, which is a cylindrical piece and is sleeved on the outside of the valve core lining, and the top of the valve core is provided with an adjusting plunger, the adjusting plunger is covered by an adjusting seat, and the adjusting plunger is connected by the vertical adjusting bolt and the top of the adjusting plunger; a safety protection cover, which is provided with a hole on the top for the valve core, the lining and the sleeve to extend upward and cover the bottom plate and the baffle plate; the valve core comprises two floating valve cores, which are connected by a valve core connecting rod, and each floating valve core is respectively provided with a round wire spring and an elastic retainer.

2. The quick assembly device of a floating spool of a threaded cartridge valve according to claim 1, wherein, the movable connecting plate is provided with a handle.

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