CN213731497U

CN213731497U - Engine valve collet assembly and disassembly tools

Info

Publication number: CN213731497U
Application number: CN202022836248.5U
Authority: CN
Inventors: 王开蓉; 李平; 岳应; 侯浩; 王坤
Original assignee: Chengdu Rise Energy Technology Development Co ltd
Current assignee: Chengdu Rise Energy Technology Development Co ltd
Priority date: 2020-12-01
Filing date: 2020-12-01
Publication date: 2021-07-20
Anticipated expiration: 2030-12-01

Abstract

The utility model discloses an engine valve collet assembly and disassembly tools has solved the big problem of current dismantlement engine valve collet potential safety hazard. The utility model comprises a pressure rod, a pressing piece and a connecting piece; the pressure rod is strip-shaped, one end of the pressure rod is hinged with the connecting piece, and the connecting piece is used for connecting a stud on the engine; the casting die comprises a gland plate and an avoiding rod, a through hole is formed in the middle of the gland plate, the avoiding rod is vertically connected with the end face of the gland plate, the casting die is connected with the pressure rod in a sliding mode through the free end of the avoiding rod, and the casting die axially slides along the pressure rod. The utility model has the advantages of simple structure, low cost, simple manufacture, taking and using at any time, etc.

Description

Engine valve collet assembly and disassembly tools

Technical Field

The utility model relates to an engine frock technical field, concretely relates to engine valve collet assembly and disassembly tools.

Background

The valve is used for specially inputting air into the engine and discharging combusted waste gas. From the engine structure, the engine is divided into an intake valve and an exhaust valve. The intake valve is used for sucking air into the engine to be mixed with fuel for combustion; the exhaust valve is used for discharging combusted waste gas and dissipating heat.

When a valve in an engine valve mechanism breaks down, the valve needs to be replaced and maintained, the existing dismounting tool is complex in structure, inconvenient to carry and high in price, is less applied to some small maintenance factories or construction sites, and causes inconvenience in dismounting and mounting work of the valve, two long wrenches are generally arranged on a valve spring washer in parallel at present, and the spring compression is realized by the pressing force of two hands to finish dismounting and mounting of the valve, so that imbalance of the pressing force of the spring can often occur, and not only is the dismounting of a valve spring locking plate difficult, time and labor consuming, and inconvenient to operate; and during the installation, valve spring locking plate need relapse a lot of assembly just can target in place, sometimes when the assembly, thinks that the locking plate has assembled in place, releases the spanner of pushing down, and the reaction force of spring can not fly the spring locking plate bullet that has not arrived in the draw-in groove and can not find, causes economic loss, and the spring locking plate who is popped off even causes the injury to the staff easily, has great potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem that will solve is: potential safety hazard when reducing the dismouting of valve collet, the utility model provides an engine valve collet assembly and disassembly tools who solves above-mentioned problem.

The utility model discloses a following technical scheme realizes:

an engine valve collet assembly and disassembly tools, including pressure lever, casting die and link; the pressure rod is strip-shaped, one end of the pressure rod is hinged with the connecting piece, and the connecting piece is used for connecting a stud on the engine; the casting die comprises a gland plate and an avoiding rod, a through hole is formed in the middle of the gland plate, the avoiding rod is vertically connected with the end face of the gland plate, the casting die is connected with the pressure rod in a sliding mode through the free end of the avoiding rod, and the casting die axially slides along the pressure rod.

The utility model is specially used for the engine which comprises a stud which can be connected by a connecting piece, and the utility model mainly directly acts on the upper seat of the valve spring through a casting die; a through hole is formed in the middle of a gland plate on the pressing piece, the gland plate is manually sleeved into the valve, and then the gland plate presses the upper seat of the valve spring downwards until the mounting position of the locking clamp is exposed; in the utility model, the gland plate is pressed down through the cooperation of the pressure rod and the connecting piece, the pressure rod, the connecting piece and the gland plate practically jointly form a labor-saving lever, after the connecting piece is connected with the stud, the connecting position of the pressure rod and the connecting piece is taken as a fulcrum, thereby achieving the effect of time and labor saving, and the artificial acting force on the pressure rod is more convenient to adjust through the setting of the lever, namely compared with the direct vertical direction pressure application, when the spring posture needs to be adjusted, because of the setting of the labor-saving lever structure, the position change quantity of the gland plate is smaller, the problem of repeated assembly caused by the traditional disassembly and assembly mode is avoided, thereby improving the assembly efficiency, furthermore, the utility model has simple structure, compared with a special assembly device in an engine production line, the manufacturing cost is lower, and the convenience is higher, take and use along with, easy operation.

Preferably, the gland plate is matched with the spring valve upper seat with the maximum standard specification, and the minimum diameter of the through hole in the gland plate is larger than the diameter of the valve with the maximum standard specification; increase the utility model discloses a suitability makes an instrument be applicable to the valve of a plurality of specifications.

Preferably, the pressing piece comprises a connecting ring, the connecting ring is fixedly connected with the avoiding rod, a rubber ring is sleeved in the connecting ring, and the pressing piece is sleeved with the pressure rod through the connecting ring; when the artificial force is applied to the pressure rod, any point except the fulcrum on the pressure rod is in curvilinear motion, and the rubber ring is arranged in the connecting ring, so that the axis of the pressure rod can deviate in the connecting ring, the load of the joint of the pressure rod and the connecting ring is reduced, the deviation of the axis of the gland plate relative to the axis of the valve spring is reduced, and meanwhile, the rubber ring plays a role in protecting the contact point of the pressure rod and the connecting ring.

Preferably, one radial section of the pressure rod is in a circular truncated cone shape, one end with a larger diameter of the pressure rod is connected with the connecting piece, and an included angle between one bus on the pressure rod and the diameter of the corresponding large bottom surface is 0.5 degrees; the action point of the pressure rod and the connecting ring is set to be A, the position of the point A is located at one end, far away from the connecting piece, in the connecting ring, in the process of pressing down the pressure rod, the motion trail of the point A is a curve, the direction of the pressure rod relative to the connecting ring is the tangential direction of the passing point A along the motion trail, namely the acting force of the pressure rod relative to the connecting ring is non-vertical and downward, so that the pressure rod has the force towards the connecting piece in the horizontal direction relative to the connecting ring, the connecting ring has the trend of moving towards the connecting piece, and the pressure rod is set to be in a circular truncated cone shape, so that one end, close to the connecting piece, in the connecting ring is contacted with the pressure rod, the pressure rod provides a reaction force for the connecting ring at the position of the contact point, and the connecting ring is prevented from sliding on the pressure rod.

Further, a rubber sleeve is sleeved on the outer surface of the pressure rod; when force is applied to the pressure rod, the rubber on the pressure rod is in close contact with the rubber ring in the connecting ring, so that high friction force is provided, and sliding is further prevented.

Preferably, the connecting piece is the iron wire, and the iron wire passes pressure bar along a radial direction of pressure bar, and the iron wire end to end connection forms the connecting piece.

Furthermore, one end of the pressure rod is fixedly connected with a force applying lug, a through hole with the axis vertical to the axis of the pressure rod is formed in the force applying lug, and the iron wire penetrates through the through hole in the force applying lug to be hinged with the pressure rod; protect the pressure bar, guarantee the life of pressure bar.

The utility model discloses have following advantage and beneficial effect:

1. the utility model discloses compare in traditional engine collet dismouting, labour saving and time saving utilizes lever principle to press valve spring seat of honour for the fault-tolerant rate is higher, is pressing the in-process promptly, and valve spring deformation volume is less, and valve spring is more stable when being pressed, and the potential safety hazard is little.

2. The utility model discloses simple structure, the component is few, and the assembly preparation is easy, compares in traditional engine assembling's special frock, the great reduction of cost, just the utility model discloses small, light in weight, the suitability is higher, along with taking along with using.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principles of the invention. In the drawings:

fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural diagram of embodiment 2 of the present invention.

Reference numbers and corresponding part names in the drawings:

1-pressure rod, 2-force application ear, 3-gland plate, 4-connecting piece, 5-avoidance rod, 6-connecting ring, 7-rubber ring and 8-rubber sleeve.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the following examples and drawings, and the exemplary embodiments and descriptions thereof of the present invention are only used for explaining the present invention, and are not intended as limitations of the present invention.

Example 1

An engine valve collet assembly and disassembly tools, including pressure lever 1, casting die and link 4; the pressure rod 1 is strip-shaped, one end of the pressure rod 1 is hinged with the connecting piece 4, and the connecting piece 4 is used for connecting a stud on an engine; the casting die includes gland dish 3 and

dodges pole

5, and 3 middle parts of gland dish are opened there is the through-hole, dodge pole 5 and gland dish 3 terminal surfaces and are connected perpendicularly, dodge 5 quantity of pole and be 2, are located the through-hole both sides of gland dish 3 respectively, and the casting die is through dodging 5 free ends of pole and 1 sliding connection of pressure pole, and the casting die is along 1 endwise slip of pressure pole.

When the device is used, the connecting piece 4 is connected to a stud on an engine, the pressing piece is manually slid to enable the pressing piece to correspond to the valve, the through hole of the gland plate 3 is sleeved on the valve, the pressure rod 1 is pressed forcefully, the gland plate 3 presses the valve spring downwards until the mounting position of the locking clamp, and then the locking clamp is mounted or dismounted.

Example 2

The embodiment is an improvement on the basis of embodiment 1, the diameter of the gland plate 3 and the diameter of a through hole on the gland plate correspond to the upper seat of a valve spring and a valve with the maximum standard specification respectively; the free end of the avoidance rod 5 is connected with a connecting ring 6, a rubber ring 7 is coaxially connected in the connecting ring 6, and the pressing piece is sleeved with the pressure rod 1 through the connecting ring 6 to realize sliding connection; the pressure rod 1 is in a round table shape, the diameter of the pressure rod 1 is gradually reduced from one end close to the connecting piece 4 to the other end, and the outer surface of the pressure rod 1 is provided with a rubber sleeve 8; the end with the larger diameter on the pressure rod 1 is connected with a force applying lug 2, the force applying lug 2 is provided with a through hole with the axis vertical to the axis of the pressure rod 1, the connecting piece 4 is an iron wire, and the iron wire penetrates through the through hole on the force applying lug 2 and is connected end to end.

The truncated cone shape of the pressure rod 1 in the embodiment prevents the connecting ring 6 from sliding when the pressure rod 1 is pressed, and the rubber ring 7 and the rubber sleeve 8 increase the friction between the connecting ring 6 and the pressure rod 1, thereby further preventing the relative sliding between the connecting ring 6 and the pressure rod 1; the arrangement of the force application lug 2 enables the connecting piece 4 to be indirectly connected with the pressure rod 1, and the pressure rod 1 is protected.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. An engine valve collet assembly and disassembly tools, characterized by that, including the pressure lever (1), casting die and link (4);

the pressure rod (1) is strip-shaped, one end of the pressure rod (1) is hinged with the connecting piece (4), and the connecting piece (4) is used for connecting a stud on an engine;

the casting die comprises a gland plate (3) and an avoiding rod (5), a through hole is formed in the middle of the gland plate (3), the avoiding rod (5) is perpendicularly connected with the end face of the gland plate (3), the casting die is in sliding connection with the pressure rod (1) through the free end of the avoiding rod (5), and the casting die slides along the axial direction of the pressure rod (1).

2. The engine valve collet assembly and disassembly tool of claim 1, wherein the gland plate (3) is matched with the spring valve upper seat with the maximum standard specification, and the minimum diameter of the through hole on the gland plate (3) is larger than the diameter of the valve with the maximum standard specification.

3. The tool for disassembling and assembling the engine valve collet according to claim 1, characterized by comprising a connecting ring (6), wherein the connecting ring (6) is fixedly connected with the avoiding rod (5), a rubber ring (7) is sleeved in the connecting ring (6), and the pressing piece is sleeved with the pressure rod (1) through the connecting ring (6).

4. The engine valve collet assembly and disassembly tool of claim 3, wherein a radial cross section of the pressure rod (1) is a circular truncated cone, one end of the pressure rod (1) with a larger diameter is connected with the connecting piece (4), and an included angle between one generatrix on the pressure rod (1) and the corresponding diameter of the large bottom surface is 0.5 degrees.

5. The tool for disassembling and assembling the engine valve collet according to claim 4, characterized in that the outer surface of the pressure rod (1) is sleeved with a rubber sleeve (8).

6. An engine valve collet assembly and disassembly tool as claimed in claim 1, wherein the connecting member (4) is a wire that passes through the pressure bar (1) in one radial direction of the pressure bar (1), the wire being connected end-to-end to form the connecting member (4).

7. The tool for disassembling and assembling the engine valve collet according to claim 6, characterized in that one end of the pressure rod (1) is fixedly connected with the force applying lug (2), a through hole with an axis perpendicular to the axis of the pressure rod (1) is formed in the force applying lug (2), and the iron wire penetrates through the through hole in the force applying lug (2) to be hinged with the pressure rod (1).