Stable load-bearing equatorial mount

Abstract

The application relates to a stable load-bearing equatorial mechanism which comprises a latitude seat, an hour angle base, a declination base, an equatorial axis and a counterweight; the latitude seat comprises a seat body, vertical side plates are connected to the two sides of the seat body, and circular-arc-shaped sliding grooves are arranged on the inner sides of the side plates; the hour angle base is connected with sliding rails on the two sides, circular-arc-shaped protrusions are arranged on the two sliding rails, the protrusions are one-to-one corresponding and placed in the sliding grooves and penetrate through the two ends of the sliding grooves, and the sliding grooves are connected in a sliding fit mode; the hour angle base is provided with a columnar protrusion at one end and an equatorial axis at the other end, the columnar protrusion is coaxial with the equatorial axis, the declination base is rotatably installed on the columnar protrusion and the equatorial axis through bearings at the two ends, and the counterweight is connected with the declination base through a counterweight rod. A G-shaped structure is formed, the load is borne at the two ends of the mechanism, all the load is divided into two halves, and each half is borne at the two ends, so that the equatorial mechanism has stronger load-bearing capacity and is more stable.

Description

TECHNICAL FIELD

[0001] The application relates to an equatorial telescope, in particular to a stable load-bearing equatorial telescope mechanism. BACKGROUND

[0002] A stable load-bearing equatorial telescope mechanism in the prior art, such as patent CN201710637187.X, adopts a traditional T-shaped mechanism to press all load weights on a middle point of an equatorial axis, so that the equatorial axis is more likely to deform. SUMMARY

[0003] To solve the above problems, the application provides a G-shaped stable load-bearing equatorial telescope mechanism.

[0004] The technical scheme of the application is as follows:

[0005] The stable load-bearing equatorial telescope mechanism comprises a latitude seat, an hour angle base, a declination base, an equatorial axis and a counterweight. The latitude seat comprises a seat body, and vertical side plates are connected to the two sides of the seat body. The two side plates are opposite to each other, and circular-arc-shaped sliding grooves are arranged on the inner sides of the two side plates. The hour angle base is arranged between the two side plates. The two sides of the hour angle base are connected with sliding rails. Circular-arc-shaped protrusions are arranged on the two sliding rails. The circular-arc-shaped protrusions are arranged in one-to-one correspondence and penetrate through the two ends of the circular-arc-shaped sliding grooves. The circular-arc-shaped protrusions are in sliding fit connection with the circular-arc-shaped sliding grooves. The hour angle base is driven to rotate by a latitude adjusting device. The two ends of the hour angle base are provided with columnar protrusions and equatorial axes. The columnar protrusions are coaxial with the equatorial axes. The declination base is arranged above the hour angle base. The two lower ends of the declination base are rotatably installed on the columnar protrusions and the equatorial axes through bearings. The declination base is driven to rotate by an hour angle adjusting device. The counterweight is arranged below the declination base and on the same side of the equatorial axes. The counterweight is connected with the declination base through a counterweight rod.

[0006] A groove is arranged in the middle of the lower end surface of the circular-arc-shaped sliding groove. Considering that the circular-arc-shaped protrusions slide relative to the circular-arc-shaped sliding grooves, the lower end surface of the circular-arc-shaped protrusions is in contact with the lower end surface of the circular-arc-shaped sliding grooves under the action of gravity. Frictional resistance is generated in the sliding process. In particular, when the load weight is large, the frictional resistance is increased. Therefore, the relative sliding is not smooth and is prone to be stuck. However, the groove is arranged in the middle of the lower end surface of the circular-arc-shaped sliding groove. Therefore, the contact surface of the circular-arc-shaped protrusions and the circular-arc-shaped sliding grooves is effectively reduced. The frictional surface is small, the frictional resistance is relatively reduced, the sliding is smooth, and the sticking is not prone to occur.

[0007] The lower surface of the hour angle base is a circular arc surface; the latitude adjusting device comprises a latitude worm and a circular arc rack, the circular arc rack is connected to the lower surface of the hour angle base, the latitude worm is horizontally rotatably installed on the seat body of the latitude seat and located between the two side plates and is in meshing connection with the circular arc rack; the latitude worm is provided with a latitude adjusting hand wheel at one end; the circular arc rack is consistent with the arc of the circular arc groove and the circular arc protrusion.

[0008] The hour angle adjusting device is a knob, the knob is connected to the declination angle base and coaxial with the right ascension shaft.

[0009] The hour angle worm is rotatably installed on the declination angle base, the hour angle worm is sleeved with the hour angle worm wheel, the hour angle worm is in meshing connection with the hour angle worm wheel; the hour angle locking handle is rotatably installed on the declination angle base, and the hour angle locking handle is locked or loosened when rotating.

[0010] The hour angle base is hollowed with a plurality of holes.

[0011] The application has the advantages of reasonable design, ingenious idea, the hour angle base, the declination angle base and the right ascension shaft form a G-shaped structure, so that the load weight is borne at both ends of the mechanism, which is equivalent to dividing all the load weight into two halves, thereby making the equatorial instrument mechanism have stronger carrying capacity and be more stable. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a perspective view of the equatorial instrument mechanism.

[0013] Figure 2 It is a front view of the equatorial instrument mechanism.

[0014] Figure 3 It is a sectional view of the equatorial instrument mechanism.

[0015] Figure 4 It is Figure 3 a partial enlarged view.

[0016] Figure 5 It is a structure diagram of the latitude seat.

[0017] Figure 6 It is a structure diagram of the hour angle base.

[0018] In the figure, the latitude seat 1 is the seat body 1-1, the side plate 1-2 is the circular arc groove 1-2-1, the hour angle base 2 is the sliding rail 2-1, the circular arc protrusion 2-1-1 is the hole 2-2, the declination angle base 3 is the right ascension shaft 4, the counterweight 5 is the latitude adjusting device 6, the latitude worm 6-1 is the circular arc rack 6-2, the latitude adjusting hand wheel 6-3 is the hour angle adjusting device 7, the hour angle worm 8 is the hour angle worm wheel 9, and the hour angle locking handle 10. DETAILED DESCRIPTION

[0019] As Figures 1-6 The stable load-bearing equatorial mechanism shown in the figure comprises a latitude seat 1, an hour angle base 2, a declination base 3, an equatorial shaft 4 and a counterweight 5; the latitude seat 1 comprises a seat body 1-1, vertical side plates 1-2 are connected to the two sides of the seat body 1-1 respectively, the two side plates are opposite to each other and circular arc-shaped sliding grooves 1-2-1 are arranged on the inner sides of the two side plates respectively, the hour angle base 2 is arranged between the two side plates 1-2, sliding rails 2-1 are connected to the two sides of the hour angle base 2 respectively, circular arc-shaped protrusions 2-1-1 are arranged on the two sliding rails 2-1 respectively, the circular arc-shaped protrusions 2-1-1 are arranged in the circular arc-shaped sliding grooves 1-2-1 one by one and penetrate through the two ends of the circular arc-shaped sliding grooves 1-2-1, and the circular arc-shaped protrusions 2-1-1 are connected to the circular arc-shaped sliding grooves 1-2-1 in a sliding fit, the hour angle base 2 is driven to rotate by a latitude adjusting device 6, the two ends of the hour angle base 2, one end of which is extended and provided with a columnar protrusion, and the other end of which is fixedly connected to the equatorial shaft 4, the columnar protrusion is coaxial with the equatorial shaft 4, the declination base 3 is arranged above the hour angle base 2, the two lower ends of the declination base 3 are rotatably mounted on the columnar protrusion and the equatorial shaft 4 through bearings respectively, the declination base 3 is driven to rotate by an hour angle adjusting device 7, the counterweight 5 is arranged below the declination base 3 and on the same side of the equatorial shaft 4, and the counterweight 5 is connected to the declination base 3 through a counterweight rod, a recess is arranged in the middle of the lower end surface of the circular arc-shaped sliding groove, the lower surface of the hour angle base 2 is a circular arc surface, the latitude adjusting device 6 comprises a latitude worm 6-1 and a circular arc-shaped rack 6-2, the circular arc-shaped rack 6-2 is connected to the lower surface of the hour angle base 2, the latitude worm 6-1 is horizontally rotatably mounted on the seat body 1-1 of the latitude seat and located between the two side plates 1-2, and the latitude worm 6-1 is connected to the circular arc-shaped rack 6-2 in a meshing manner, one end of the latitude worm 6-1 is provided with a latitude adjusting handle 6-3, the curvature of the circular arc-shaped rack 6-2 is consistent with that of the circular arc-shaped sliding groove 1-2-1 and the circular arc-shaped protrusion 2-1-1, the hour angle adjusting device 7 is a knob, the knob is connected to the declination base 3 and coaxial with the equatorial shaft 4, an hour angle worm 8 is rotatably mounted on the declination base 3, an hour angle worm wheel 9 is sleeved on the equatorial shaft 4, the hour angle worm 8 is connected to the hour angle worm wheel 9 in a meshing manner, an hour angle locking handle 10 is rotatably mounted on the declination base 3, and the hour angle locking handle 10 locks or loosens the hour angle worm 8 when it is rotated, and a plurality of holes 2-2 are hollowed out on the hour angle base 2.

[0020] The above-described embodiment only expresses one embodiment of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which all belong to the protection scope of the present application. Therefore, the protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A stable load-bearing equatorial mount mechanism, comprising a latitude base, an hour angle base, a declination base, a right ascension axis, and a counterweight; characterized in that: The two guide wheels have an angular groove on the top and a side of the two guide wheels on the bottom, the two guide wheels have a circular groove on the top and a side of the two guide wheels on the bottom. A groove is provided in the middle of the lower end surface of the arc-shaped slide; The lower surface of the hour angle base is an arc surface; the latitude adjustment device includes a latitude worm and an arc-shaped rack. The arc-shaped rack is connected to the lower surface of the hour angle base. The latitude worm is horizontally rotatably mounted on the base of the latitude base and is located between the two side plates and meshed with the arc-shaped rack. A latitude adjustment handwheel is installed at one end of the latitude worm. The arc-shaped rack has the same curvature as the arc-shaped slide groove and the arc-shaped protrusion. The hour angle adjustment device is a knob connected to the declination base and coaxial with the right ascension axis; The declination base is rotatably mounted with an hour angle worm, the right ascension axis is fitted with an hour angle worm wheel, and the hour angle worm is meshed with the hour angle worm wheel; the declination base is rotatably mounted with an hour angle locking handle, and the hour angle locking handle is rotated to lock or release the hour angle worm; The hour angle base is hollowed out with a plurality of holes.

Images